Air conditioner

Abstract

This air conditioner comprises: a corrugated bottom plate in which crest parts and valley parts are alternately connected; and a pair of support legs extending in a direction in which the crest parts and the valley parts of the bottom plate are alternately connected, and having support parts which are disposed at and support both ends of the bottom plate in a direction in which the crest parts and the valley parts extend. The bottom plate has a plurality of first protrusions that are formed at both ends of the valley parts placed on the support legs at an interval in a direction in which corrugated shapes are connected, and are formed such that the upper surfaces protrude upward. The support legs have a plurality of second protrusions that are formed at an interval in the longitudinal direction in the support parts, and are formed such that the upper surfaces protrude upward. The first protrusions of the bottom plate and the second protrusions of the support legs are fitted to each other in a state where the ends of the bottom plate are placed on the support parts of the support legs, and are joined by means of a joint member in the fitted state.

Description

air conditioner

[0001] The present disclosure relates to an air conditioner and to a housing structure.

[0002] Conventionally, components of the housing of an outdoor unit of an air conditioner include a bottom frame and foundation legs (see, for example, Patent Document 1). The bottom frame is a rectangular plate-like member provided at the bottom of the outdoor unit and supports an outdoor heat exchanger, a compressor, and the like. The foundation legs are provided corresponding to two opposing sides of the rectangular bottom frame and support the bottom frame and the entire outdoor unit. The foundation legs also have fastening surfaces, which are flat surfaces for fastening to the bottom frame. Screws are passed through screw holes formed in the flat surface of the bottom frame and screw holes formed in the flat surface of the foundation legs, which are the fastening surfaces, to join the bottom frame and the foundation leg bottom plate.

[0003] JP 2016-99039 A

[0004] In Patent Document 1, the bottom frame and the base legs are joined by screws passing through screw holes formed in the flat surfaces of the frame and base legs, which makes them vulnerable to shearing forces. As a result, when a lateral force is applied to the outdoor unit housing, the threads of the screws can be stripped, causing the screws to shear off or come out of the screw holes, which can be a problem.

[0005] The present disclosure has been made to solve the above-mentioned problems, and aims to provide an air conditioner with improved strength against forces in the shear direction.

[0006] The air conditioner of the present disclosure comprises a corrugated bottom plate having alternating peaks and valleys, and a pair of support legs extending in the direction in which the peaks and valleys of the bottom plate alternate, and arranged at both ends of the bottom plate in the direction in which the peaks and valleys extend, and having support portions that support both ends; the bottom plate has first protrusions formed at both ends of the valleys that are to be placed on the pair of support legs, with multiple first protrusions spaced apart along the direction in which the waveforms continue, and formed so that their upper surfaces protrude upward; the support legs have multiple second protrusions formed at the support portions with multiple second protrusions spaced apart along the longitudinal direction, with their upper surfaces protruding upward; the first protrusions of the bottom plate and the second protrusions of the support legs fit together when the ends of the bottom plate are placed on the support portions of the support legs, and are joined together in this fitted state by a joining member.

[0007] In the air conditioner according to the present disclosure, the bottom plate and the support legs are joined by joining members in a state in which first protrusions formed on both ends of the bottom plate with their upper surfaces protruding upward and second protrusions formed on the support portions of the support legs with their upper surfaces protruding upward are fitted together, thereby improving strength against shear forces.

[0008] 7 is a schematic configuration diagram of an air conditioner according to embodiment 1. FIG. 1 is a perspective view showing the appearance of a heat source unit according to embodiment 1. FIG. 2 is a perspective view showing a bottom plate supported by support legs of a heat source unit according to embodiment 1. FIG. 3 is a plan view showing a bottom plate supported by support legs of a heat source unit according to embodiment 1. FIG. 4 is a plan view showing the support legs and bottom plate of FIG. 4 disassembled. FIG. 5 is a perspective view showing support legs of a heat source unit according to embodiment 1. FIG. 6 is an enlarged view of the portion viewed from arrow B in FIG. 3. FIG. 7 is a view of the D-D cross section of FIG. 3 as seen from the direction of the arrows. FIG. 8 is a view of the F-F cross section of FIG. 7 as seen from the direction of the arrows. FIG. 9 is a view of the portion viewed from arrow G in FIG. 7 in the Z direction. FIG. 10 is an enlarged view of the portion viewed from arrow C in FIG. 3. FIG. 11 is an enlarged view of the bottom plate shown semi-transparently at the portion viewed from arrow C in FIG. 3. FIG. 12 is an enlarged view of the portion viewed from arrow E in FIG. 4. FIG. 13 is an enlarged view of the portion viewed from arrow H in FIG. 10. FIG. 2 is an enlarged view of the portion viewed from arrow A in FIG. 2.

[0009] An air conditioner according to Embodiment 1 will be described below with reference to the drawings. Note that in the following drawings, including FIG. 1, the relative dimensional relationships and shapes of each component may differ from those in reality. Furthermore, in the following drawings, identical reference numerals denote identical or equivalent components, and this applies throughout the entire specification. To facilitate understanding, directional terms (e.g., "up," "down," "right," "left," "front," "rear," etc.) are used as appropriate. However, these terms are used for convenience of explanation only and do not limit the arrangement or orientation of the device or components. In the specification, the relative positions of each component, the extension direction of each component, and the arrangement direction of each component generally refer to the air conditioner when installed and ready for use.

[0010] Embodiment 1. Figure 1 is a schematic diagram of an air conditioner according to Embodiment 1. As shown in Figure 1, the air conditioner according to Embodiment 1 is configured by connecting a heat source unit 100 installed outdoors, such as on the roof of a building or near a building wall, to a utilization unit 200 installed indoors, such as in a living room or an attic space. The heat source unit 100 includes a heat exchanger 7 that exchanges heat between air and a refrigerant, a compressor 10 that compresses the refrigerant, an accumulator 11 that stores liquid refrigerant, a blower fan 12 that sends air to the heat exchanger 7, a flow path switching device 13 that switches the refrigerant flow path, and a throttle device 14 that decompresses and expands the refrigerant. The utilization unit 200 includes a utilization-side heat exchanger 201 that exchanges heat between air and the refrigerant, and a utilization-side blower fan 202 that sends air to the utilization-side heat exchanger 201. The heat source unit 100 and the utilization unit 200 are connected via a liquid refrigerant connection pipe 400 and a gas refrigerant connection pipe 500. The heat source unit 100 and the utilization unit 200 are connected via a liquid refrigerant communication pipe 400 and a gas refrigerant communication pipe 500 to form a refrigerant circuit 600 .

[0011] Fig. 2 is a perspective view showing the appearance of the heat source unit 100 according to embodiment 1. As shown in Fig. 2, the heat source unit 100 according to embodiment 1 includes a substantially rectangular parallelepiped housing 1 that forms an outer shell, a heat exchanger 7 provided along the outer surface of the housing 1, and a blower fan 12 provided at the top inside the housing 1. Furthermore, the housing 1 includes a bottom plate 2 that forms the bottom surface, a pair of support legs 3 that support the bottom plate 2, four frame members 4 that extend upward from the four corners of the bottom plate 2, a front panel 5 that covers the front opening, and a fan casing 6 provided around the blower fan 12.

[0012] The housing 1 has air intake ports 1a for taking air into the interior formed on the left and right side surfaces and the back of the outer periphery, which are defined by the four frame members 4 at the four corners, and a heat exchanger 7 is disposed along the air intake ports 1a. The heat exchanger 7 exchanges heat between the refrigerant supplied to the heat exchanger 7 and the air passing through the heat exchanger 7. The heat exchanger 7 functions as a condenser during cooling operation, condensing and liquefying the refrigerant. On the other hand, the heat exchanger 7 functions as an evaporator during heating operation, evaporating and vaporizing the refrigerant.

[0013] The housing 1 has an outer periphery with four frame members 4 at the four corners, and two front panels 5 made of decorative metal are provided on the front side of the outer periphery. The front of the housing 1 is closed by the front panels 5. The left and right side edges of the front panels 5 are fixed to the frame members 4 with fastening members such as screws.

[0014] Furthermore, internal components that constitute a refrigerant circuit 600, such as a compressor 10 and an accumulator 11, are installed in the lower interior of the housing 1. By removing the front panel 5 from the housing 1 to open the interior of the heat source unit 100, maintenance of the internal components, such as the compressor 10 and accumulator 11 shown in FIG.

[0015] As shown in FIG. 2 , an air outlet 1b is formed on the top surface of the housing 1, and a blower fan 12 is disposed within the housing 1 directly below the air outlet 1b. The blower fan 12 is, for example, a propeller fan, and is driven by a motor (not shown). When the blower fan 12 is driven, air is drawn into the housing 1 through the air inlet 1a, passes through the heat exchanger 7 to exchange heat with the refrigerant, and is then discharged from the air outlet 1b via the blower fan 12. The blower fan 12 is surrounded by a fan casing 6 attached to the housing 1. The fan casing 6 is disposed above the front panel 5 and the heat exchanger 7 on the outer periphery of the housing 1, with the four frame members 4 forming the four corners, and surrounds the blower fan 12.

[0016] FIG. 3 is a perspective view showing the bottom plate 2 in a state supported by the support legs 3 of the heat source unit 100 according to embodiment 1. FIG. 4 is a plan view showing the bottom plate 2 in a state supported by the support legs 3 of the heat source unit 100 according to embodiment 1. FIG. 5 is a plan view in which the support legs 3 and the bottom plate 2 of FIG. 4 are disassembled. FIG. 6 is a perspective view showing the support legs 3 of the heat source unit 100 according to embodiment 1. FIG. 7 is an enlarged view of the portion viewed from arrow B in FIG. 3. FIG. 8 is a view of the D-D cross section of FIG. 3 as seen from the direction of the arrows. FIG. 9 is a view of the F-F cross section of FIG. 7 as seen from the direction of the arrows. FIG. 10 is a view of the portion viewed from arrow G in FIG. 7 as seen in the Z direction. FIG. 11 is an enlarged view of the portion viewed from arrow C in FIG. 3. FIG. 12 is an enlarged view of the bottom plate 2 in a semi-transparent manner as seen from arrow C in FIG. 3. FIG. 13 is an enlarged view of the portion viewed from arrow E in FIG. 4. FIG. 14 is an enlarged view of the portion viewed from arrow H in FIG. 10. FIG. 15 is an enlarged view of the portion indicated by the arrow A in FIG. 2.

[0017] As shown in FIGS. 3 to 5 , the bottom plate 2 has a generally rectangular shape in plan view and forms the bottom surface of the housing 1. The bottom plate 2 is made of, for example, a ZAM ore plate, and is coated on one side with paint to prevent rust and improve design. The bottom plate 2 is supported by a pair of support legs 3 at both ends (hereinafter also referred to as the front and rear ends) in the direction in which the peaks 2a and valleys 2b extend (the Z direction), and is installed at a predetermined height above the installation surface of the heat source unit 100. The bottom surface of the bottom plate 2 is curved to form a square wave shape in which the peaks 2a and valleys 2b are alternately connected. The peaks 2a and valleys 2b are each flat and formed to be generally parallel. The peaks 2a and valleys 2b are connected by a connecting surface 2c. The connecting surface 2c may be perpendicular to the peaks 2a and valleys 2b or may be inclined. That is, the cross-sectional shape of the bottom surface of the bottom plate 2 may be rectangular wave-shaped, trapezoidal wave-shaped, or any other shape. However, by making the bottom surface of the bottom plate 2 wave-shaped, the rigidity when a bending moment is applied in the surface direction is increased, and the strength can be increased.

[0018] Furthermore, drainage holes 20 are formed in the peaks 2a and valleys 2b to discharge to the outside drainage water that is generated in the heat exchanger 7 and flows onto the bottom surface of the bottom plate 2. The drainage holes 20 are formed in an appropriate number and at appropriate positions, taking into consideration the strength of the bottom plate 2 and the drainage performance of the drainage water. Note that the positions and number of the drainage holes 20 are not limited to the configuration shown in the figure, and may be changed as appropriate depending on the installation location of the heat source unit 100 or the shape and size of the bottom plate 2.

[0019] The bottom plate 2 has valley portions 2b at both ends (hereinafter also referred to as left and right ends) in the direction (X direction) in which the peak portions 2a and valley portions 2b are alternately arranged. The valley portions 2b located at both left and right ends have flange portions 22a bent upward along both edges to which the valley portions 2b extend. The four corners of the bottom plate 2 are C-chamfered, and the edges of the four corners also have flange portions 22b bent upward.

[0020] As shown in Figures 3 to 5, the pair of support legs 3 are disposed below the bottom plate 2 to support the bottom plate 2. The support legs 3 are made of, for example, an alloy plate, and are coated on both sides with paint to prevent rust and improve design. The support legs 3 are formed by bending a steel plate and, in a plan view, have a generally rectangular shape extending along the direction in which the peaks 2a and valleys 2b alternate (X direction). As shown in Figure 6, the support legs 3 each have a planar installation section 30 that is installed on the installation surface of the heat source unit 100, a rising section 31 that rises upward from one end edge of the installation section 30 along the longitudinal direction (X direction), a support section 32 that is bent horizontally (Z direction) from the upper end edge of the rising section 31 along the longitudinal direction (X direction), and a wall section 33 that rises upward from the tip edge of the support section 32 along the longitudinal direction (X direction). The support leg 3 has a substantially C-shaped vertical cross section formed by the installation portion 30, the rising portion 31, and the support portion 32. Note that in the above, the horizontal direction is a concept that includes substantially horizontal, and does not necessarily have to be strictly horizontal.

[0021] The wall portion 33 is formed so that its wall surface faces the end of the bottom plate 2 placed on the support portion 32. A bending radius R is formed at a connection portion (not shown) between the wall portion 33 and the support portion 32 by bending. As shown in Figures 3 and 7, the wall portion 33 is formed so as to be approximately the same height as the flange portion 22a, and together with the flange portion 22a, surrounds the bottom surface of the bottom plate 2.

[0022] As shown in FIGS. 3 to 5 and 7 , the end of the bottom plate 2 in the direction in which the peaks 2a and valleys 2b extend is placed on the support portion 32 of the support leg 3. The lower surface of the valleys 2b of the bottom plate 2 abuts against the upper surface of the support portion 32. The bottom plate 2 and the support leg 3 are formed with a positioning mechanism that positions the bottom plate 2 and the support leg 3 when the end of the bottom plate 2 is placed on the support portion 32 of the support leg 3. The positioning mechanism has a first protrusion 21 formed in the valley 2b of the end of the bottom plate 2 that is placed on the support portion 32 of the support leg 3, and a second protrusion 34 formed on the support portion 32 of the support leg 3. The first protrusion 21 has a substantially conical shape, and is formed so that the upper surface of the valley 2b protrudes upward and the lower surface is recessed upward. A plurality of first protrusions 21 are formed at intervals along the direction in which the waveforms continue. The second protrusions 34 have a generally conical shape and are formed so that the upper surface of the support portion 32 protrudes upward and the lower surface is recessed upward. A plurality of second protrusions 34 are formed along the longitudinal direction of the support portion 32.

[0023] The first protrusion 21 and the second protrusion 34 fit together when the end of the bottom plate 2 is placed on the support portion 32 of the support leg 3, and their insertion holes (not shown) overlap. As shown in FIG. 8 , the first protrusion 21 and the second protrusion 34 are joined together by inserting a joining member such as a screw SR into the insertion hole (not shown) formed in the first protrusion 21 from the first protrusion 21 side. In this manner, the bottom plate 2 and the support leg 3 are joined together by the joining member with the first protrusion 21 of the bottom plate 2 and the second protrusion 34 of the support leg 3 fitted together. This improves fastening strength against earthquakes or skidding during transportation and strength against shear forces. Furthermore, by forming the upwardly protruding first protrusion 21 at the joint between the bottom plate 2 and the support leg 3, the height (H1 in FIG. 8 ) from the valley 2b to the insertion hole (not shown) is higher than when the first protrusion 21 is not formed. Therefore, even if rainwater or the like enters the heat source unit 100 and accumulates in the valleys 2b of the bottom plate 2, the rainwater or the like can be prevented from adhering to connecting members such as the screws SR, thereby preventing the connecting members such as the screws SR from rusting. Furthermore, the positioning mechanism consisting of the first protrusions 21 and the second protrusions 34 allows the bottom plate 2 to be easily installed in a predetermined position, simplifying the positioning process. Furthermore, by making the first protrusions 21 and the second protrusions 34 approximately conical, the bottom plate 2 can withstand stress from all directions, further improving its strength against shear forces. Furthermore, by making the first protrusions 21 and the second protrusions 34 approximately conical, the bottom plate 2 is less likely to shift position even when subdivided, eliminating the need for an attachment base point for the bottom plate 2.

[0024] The positions and numbers of the first protrusions 21 and the second protrusions 34 are not limited to the configuration shown in the figure, but may be changed as appropriate depending on the installation location of the heat source unit 100 or the shape and size of the bottom plate 2. Furthermore, although the first protrusions 21 of the bottom plate 2 and the second protrusions 34 of the support legs 3 have been described as having a substantially conical shape, they are not limited to this and may have other shapes.

[0025] 9, when the joining member is a screw SR, the tip SRT of the screw SR is contained within the second protrusion 34 of the support leg 3 when viewed from the front. In other words, the tip SRT of the screw SR is located at a height equal to or higher than the lower end BT of the second protrusion 34 when viewed from the front. Therefore, as shown in FIG. 10, when viewed from the front, the screw SR is hidden by the arrow G of the wall portion 33 of the support leg 3 and is not visible from the outside of the heat source unit 100. As a result, the design of the heat source unit 100 can be improved. Furthermore, when a sling used for transportation is hung on the heat source unit 100, the sling can be prevented from getting caught on the tip SRT of the screw SR that joins the first protrusion 21 and the second protrusion 34.

[0026] Furthermore, some of the multiple second protrusions 34 of the support legs 3 are joined to the first protrusions 21 of the bottom plate 2 with joining members, and some of the remaining multiple second protrusions 34 of the support legs 3 are disposed below the mountain portions 2a of the bottom plate 2. In other words, not all of the multiple second protrusions 34 of the support legs 3 are joined to the first protrusions 21 of the bottom plate 2 with joining members. FIG. 5 is a diagram showing a state in which a pair of support legs 3, on which both front and rear end portions of the bottom plate 2 are placed, are shifted in the Z direction away from the bottom plate 2. As shown in FIG. 5 , the second protrusions 34 of the support legs 3 that face the first protrusions 21 of the bottom plate 2 in the Z direction are joined to the first protrusions 21 of the bottom plate 2 that face them in the Z direction with joining members. Furthermore, the second protrusions 34 of the support legs 3 that do not face the first protrusions 21 of the bottom plate 2 in the Z direction are not joined to the first protrusions 21 of the bottom plate 2 with joining members.

[0027] 11 and 12, the second protrusion 34 of the support leg 3, which is not joined to the first protrusion 21 of the bottom plate 2 by a joining member, is arranged in the space below the ridge 2a so as not to interfere with the bottom plate 2. By configuring the support legs 3 in this manner, the pair of support legs 3 can be standardized, and both support legs 3 can be provided at either the front or rear end of the bottom plate 2. That is, in FIGS. 2 to 4, the support leg 3 provided at the front end of the bottom plate 2 can be provided at the rear end of the bottom plate 2, and the support leg 3 provided at the rear end of the bottom plate 2 can be provided at the front end of the bottom plate 2. The pair of support legs 3 are each constructed from the same material. That is, both of the pair of support legs 3 are the same and there is no difference between them, which eliminates the need for multiple types of support legs 3 when manufacturing the heat source unit 100, thereby reducing manufacturing costs.

[0028] Furthermore, the first protrusions 21 arranged at both ends (hereinafter also referred to as both left and right ends) of the bottom plate 2 have a smaller diameter than the other first protrusions 21. Furthermore, the diameter R1 (see FIG. 13) of the second protrusions 34 arranged at both ends (hereinafter also referred to as both left and right ends) of the support leg 3 is smaller than the diameter of the other second protrusions 34. This is because the four corners of the bottom plate 2 are chamfered, and if all of the first protrusions 21 have the same diameter, the distance L1 (see FIG. 13) between the first protrusions 21 arranged at both left and right ends of the bottom plate 2 and the flanges 22b formed on the edges of the four corners of the bottom plate 2 would be closer than the distance L2 (see FIG. 11) between the first protrusions 21 arranged at places other than the both left and right ends of the bottom plate 2 and the wall portions 33 of the support leg 3. Furthermore, if the distance between the first protrusions 21 and the flanges 22b of the bottom plate 2 is too short, it is difficult to form the first protrusions 21 of the bottom plate 2. In other words, unless a predetermined distance L1 between the first protrusions 21 and the flanges 22b of the bottom plate 2 is ensured, the first protrusions 21 of the bottom plate 2 cannot be formed in the correct shape. Therefore, the diameter R1 of the first protrusions 21 arranged at both left and right ends of the bottom plate 2 is made smaller than the diameter of the other first protrusions 21. This makes it possible to ensure a predetermined distance L1 between the first protrusions 21 arranged at both left and right ends of the bottom plate 2 and the flanges 22b, and to form the first protrusions 21 arranged at both left and right ends of the bottom plate 2 in the correct shape. In addition, the diameters of the second protrusions 34 arranged at both left and right ends of the support legs 3 are also made smaller so that they can fit into the first protrusions 21 arranged at both left and right ends of the bottom plate 2.

[0029] Note that if the diameter of the second protrusions 34 arranged at both the left and right ends of the support leg 3 is reduced, the height of the second protrusions 34 will be correspondingly reduced. Furthermore, as shown in FIG. 14 , if the joining member is a screw SR, the tip SRT of the screw SR will not fit within the second protrusion 34 of the support leg 3 when viewed from the front. However, as shown in FIG. 15 , the frame members 4 extending upward from the four corners of the bottom plate 2 cover the screws SR arranged at both the left and right ends of the bottom plate 2. This ensures the aforementioned effect of improving the design and the effect of preventing a sling from getting caught on the tip SRT of the screw SR during transport.

[0030] As described above, the air conditioner according to the first embodiment includes a corrugated bottom plate 2 having alternating peaks 2a and valleys 2b, and a pair of support legs 3 extending in the direction in which the peaks 2a and valleys 2b of the bottom plate 2 alternate. The support legs 3 are disposed at both ends of the bottom plate 2 in the direction in which the peaks 2a and valleys 2b extend, and have support portions 32 that support both ends. The bottom plate 2 has a plurality of first protrusions 21 formed at both ends of the valleys 2b that rest on the pair of support legs 3, spaced apart along the direction in which the corrugations continue, and formed with upper surfaces that protrude upward. The support legs 3 have a plurality of second protrusions 34 formed at intervals along the longitudinal direction on the support portions 32, and formed with upper surfaces that protrude upward. The first protrusions 21 of the bottom plate 2 and the second protrusions 34 of the support legs 3 are fitted together when the ends of the bottom plate 2 are placed on the support portions 32 of the support legs 3, and are joined together in this fitted state by a joining member.

[0031] In the air conditioner according to the first embodiment, the bottom plate 2 and the support legs 3 are joined by a joining member, with first protrusions 21 formed on both ends of the bottom plate 2 with their upper surfaces protruding upward, and second protrusions 34 formed on the support portions 32 of the support legs 3 with their upper surfaces protruding upward. This improves strength against shear forces. Furthermore, by forming the upwardly protruding first protrusions 21 and second protrusions 34 at the joints between the bottom plate 2 and the support legs 3, the height (H1 in FIG. 8 ) from the valleys 2b to the insertion holes (not shown) is increased. Therefore, even if rainwater or other contaminants enter the heat source unit 100 and accumulate in the valleys 2b of the bottom plate 2, adhesion of rainwater or other contaminants to the screws SR and other connecting members can be suppressed, thereby preventing rusting of the screws SR and other connecting members. Furthermore, the positioning mechanism consisting of the first protrusions 21 and the second protrusions 34 allows the bottom plate 2 to be easily installed in a predetermined position, simplifying the positioning process.

[0032] Furthermore, in the air conditioner according to the first embodiment, the first protrusion 21 of the bottom plate 2 and the second protrusion 34 of the support leg 3 have a conical shape.

[0033] In the air conditioner according to embodiment 1, the first protrusions 21 and the second protrusions 34 are conical in shape, which allows them to withstand stress from all directions and further improves strength against shear forces. Furthermore, by making the first protrusions 21 and the second protrusions 34 conical in shape, they are less likely to shift position even when the bottom plate 2 is subdivided, and there is no need to provide an attachment base point for the bottom plate 2.

[0034] Furthermore, in the air conditioner according to embodiment 1, the joining member is a screw SR, and the screw SR is positioned so that its tip SRT is positioned downward, and when viewed from the side, the tip SRT of the screw SR is contained within the second protrusion 34.

[0035] According to the air conditioner of embodiment 1, the screws SR are not visible from the outside of the heat source unit 100, improving the design. Furthermore, when a sling used for transportation is hung on the heat source unit 100, the sling is prevented from getting caught on the tip SRT of the screws SR that join the first protrusion 21 and the second protrusion 34.

[0036] Furthermore, in the air conditioner according to the first embodiment, the pair of support legs 3 are each made of a common member.

[0037] According to the air conditioner of the first embodiment, multiple types of support legs 3 are not required when manufacturing the heat source unit 100, and therefore manufacturing costs can be reduced.

[0038] In addition, in the air conditioner of embodiment 1, some of the multiple second protrusions 34 of the support leg 3 are joined to the first protrusion 21 of the bottom plate 2 by a joining member, and the remaining some of the multiple second protrusions 34 of the support leg 3 are positioned below the ridge portion 2a of the bottom plate 2.

[0039] According to the air conditioner of embodiment 1, by configuring the support legs 3 in this manner, the pair of support legs 3 can be made common, and either support leg 3 can be provided at either end of the bottom plate 2.

[0040] Furthermore, in the air conditioner according to embodiment 1, of the multiple first protrusions 21 on the bottom plate 2, the first protrusions 21 located at both ends in the direction in which the waveforms are continuous have a smaller diameter than the other first protrusions 21, and of the multiple second protrusions 34 on the support leg 3, the second protrusions 34 located at both ends in the direction in which the waveforms are continuous have a smaller diameter than the other second protrusions 34.

[0041] According to the air conditioner of embodiment 1, a predetermined distance can be secured between the first protrusion 21 of the bottom plate 2 near the four corners of the bottom plate 2 and the edge (flange portion 22b) of the four corners of the bottom plate 2, and the first protrusion 21 of the bottom plate 2 can be formed into the correct shape.

[0042] In addition, the air conditioner of embodiment 1 has a configuration in which the heat source unit 100 and the utilization unit 200 are separate entities, but this is not limited to this, and the heat source unit 100 and the utilization unit 200 may be integrated into one structure, that is, the components of the utilization unit 200 may be provided in the housing 1 of the heat source unit 100.

[0043] REFERENCE SIGNS LIST 1 Housing, 1a Air intake port, 1b Air outlet, 2 Bottom plate, 2a Peak portion, 2b Valley portion, 2c Connecting surface portion, 3 Support leg, 4 Frame material, 5 Front panel, 6 Fan casing, 7 Heat exchanger, 10 Compressor, 11 Accumulator, 12 Blower fan, 13 Flow path switching device, 14 Throttle device, 20 Drain hole, 21 First protrusion, 22a Flange portion, 22b Flange portion, 30 Installation portion, 31 Rising portion, 32 Support portion, 33 Wall portion, 34 Second protrusion, 100 Heat source unit, 200 Usage unit, 201 Usage side heat exchanger, 202 Usage side blower fan, 400 Liquid refrigerant connection pipe, 500 Gas refrigerant connection pipe, 600 Refrigerant circuit.

Claims

1. a wave-shaped bottom plate having alternating peaks and valleys; a pair of support legs extending in a direction in which the peaks and valleys of the bottom plate are alternately arranged, and disposed at both ends of the bottom plate in the direction in which the peaks and valleys extend, the support legs having support portions that support the both ends; The bottom plate is a plurality of first protrusions formed at intervals along the direction in which the waveforms are continuous at both ends of the valley portion to be placed on the pair of support legs, the first protrusions having upper surfaces protruding upward; The support legs are The support portion has a plurality of second protrusions formed at intervals along the longitudinal direction, the second protrusions having upper surfaces protruding upward, the first protrusion of the bottom plate and the second protrusion of the support leg are fitted together with each other in a state where an end of the bottom plate is placed on the support part of the support leg, and are joined together in this fitted state by a joining member, the joining member is a screw, The screw is arranged so that its tip is positioned downward, When viewed from the front, the tip of the screw is housed within the second protrusion. Air conditioner.

2. A corrugated bottom plate having alternating peaks and valleys; a pair of support legs extending in a direction in which the peaks and valleys of the bottom plate are alternately arranged, and disposed at both ends of the bottom plate in the direction in which the peaks and valleys extend, the support legs having support portions that support the both ends; The bottom plate is a plurality of first protrusions formed at intervals along the direction in which the waveforms are continuous at both ends of the valley portion to be placed on the pair of support legs, the first protrusions having upper surfaces protruding upward; The pair of support legs are Each is made up of common components, The support legs are The support portion has a plurality of second protrusions formed at intervals along the longitudinal direction, the second protrusions having upper surfaces protruding upward, the first protrusion of the bottom plate and the second protrusion of the support leg are fitted together with each other in a state where an end of the bottom plate is placed on the support part of the support leg, and are joined together in this fitted state by a joining member, some of the second protrusions of the support legs are joined to the first protrusions of the bottom plate by the joining members, The remaining part of the second protrusions of the support leg is disposed below the mountain portion of the bottom plate. Air conditioner.

3. A wave-shaped bottom plate having alternating peaks and valleys; a pair of support legs extending in a direction in which the peaks and valleys of the bottom plate are alternately arranged, and disposed at both ends of the bottom plate in the direction in which the peaks and valleys extend, the support legs having support portions that support the both ends; The bottom plate is a plurality of first protrusions formed at intervals along the direction in which the waveforms are continuous at both ends of the valley portion to be placed on the pair of support legs, the first protrusions having upper surfaces protruding upward; The support legs are The support portion has a plurality of second protrusions formed at intervals along the longitudinal direction, the second protrusions having upper surfaces protruding upward, the first protrusion of the bottom plate and the second protrusion of the support leg are fitted together with each other in a state where an end of the bottom plate is placed on the support part of the support leg, and are joined together in this fitted state by a joining member, Among the plurality of first protrusions of the bottom plate, the first protrusions arranged at both ends in a direction in which the waveforms are continuous have a smaller diameter than the other first protrusions, Among the plurality of second protrusions of the support leg, the second protrusions arranged at both ends in the direction in which the waveforms are continuous have a smaller diameter than the other second protrusions. Air conditioner.

4. The first protrusion of the bottom plate and the second protrusion of the support leg are It has a conical shape The air conditioner according to any one of claims 1 to 3.

5. the joining member is a screw, The screw is arranged so that its tip is positioned downward, When viewed from the front, the tip of the screw is housed within the second protrusion.

4. The air conditioner according to claim 2 or 3.

6. The pair of support legs are each formed from a common member. The air conditioner according to claim 1 or 3.

7. some of the second protrusions of the support legs are joined to the first protrusions of the bottom plate by the joining members, The remaining part of the second protrusions of the support leg is disposed below the mountain portion of the bottom plate. The air conditioner according to claim 6.

8. Among the plurality of first protrusions of the bottom plate, the first protrusions arranged at both ends in a direction in which the waveforms are continuous have a smaller diameter than the other first protrusions, Among the plurality of second protrusions of the support leg, the second protrusions arranged at both ends in the direction in which the waveforms are continuous have a smaller diameter than the other second protrusions.

3. The air conditioner according to claim 1 or 2.