A chassis structure and an air conditioner

Abstract

The present invention provides a chassis structure and an air conditioner. The chassis structure includes: a mounting portion for mounting a compressor device; a supporting portion for supporting and fixing a heat exchange device. Wherein, the supporting portion is disposed on the outer periphery of the mounting portion, a drainage channel is provided at a position on the mounting portion where it is connected to the supporting portion, a first drainage hole is provided on the drainage channel, and a second drainage hole is provided on the supporting portion. The chassis structure of the present invention, through reasonable improvement of the chassis structure, not only improves the reliability of drainage of the chassis structure, but also improves the convenience of installation of the chassis structure and the condenser, and reasonably designs the profiling of the mounting portion on the chassis to make it meet the orderly installation of other components of the outdoor unit.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioners, and particularly relates to a chassis structure and an air conditioner. Background Art

[0002] Air conditioners are indispensable electrical appliances in people's daily lives and have various structural forms. An air conditioner generally includes an indoor unit and an outdoor unit. Taking the outdoor unit of the air conditioner as an example, since the outdoor unit of the air conditioner needs to perform heating or cooling adjustment on multiple indoor units, the outdoor unit of the air conditioner often has a relatively large number of component structures. The outdoor unit of the air conditioner is divided into a single condenser structure and a double condenser structure. When using a double-row condenser, at least two refrigerant systems need to be set up, such as setting two compressors, and at the same time setting corresponding refrigerant pipelines, gas separators, oil separators, four-way valves and other components. The structure is relatively complex, and in the prior art, the overall layout of the outdoor unit is relatively loose, and the layout of relevant pipelines and valve body structures is chaotic, resulting in low space utilization rate inside the outdoor unit of the air conditioner and relatively long pipeline lengths for connecting individual components.

[0003] In addition, since the outdoor unit is usually placed in an outdoor environment, water will accumulate and cannot be discharged during rainy days. The drainage of the entire outdoor unit accumulates on the chassis, which will reduce the performance of the outdoor unit and shorten its service life. Summary of the Invention

[0004] In view of this, the present invention aims to provide a chassis structure and an air conditioner to solve the technical problems in the prior art that the layout of the components of the outdoor unit of the air conditioner is relatively loose and disorderly and the water accumulated on the chassis is not easy to discharge.

[0005] To achieve the above object, the technical solution of the present invention is realized as follows:

[0006] A chassis structure, comprising:

[0007] An installation part for installing a compressor device;

[0008] A support part for supporting and fixing a heat exchange device;

[0009] Wherein, the support part is arranged on the outer periphery of the installation part, a drainage channel is arranged at the position where the support part is connected to the installation part, a first drainage hole is arranged on the drainage channel, and a second drainage hole is arranged on the support part.

[0010] The chassis structure disclosed by the present invention realizes the rapid and complete discharge of the water accumulated on the chassis by respectively arranging two drainage structures on the inner side and the outer side of the heat exchange device on the chassis, and prevents water from remaining inside the chassis and affecting the normal use of other electrical components.

[0011] Further, some of the second drain holes are not covered by the heat exchange device, or some structures of the second drain holes are not covered by the heat exchange device.

[0012] This setting ensures the reliability of drainage outside the heat exchange device on the one hand, and also improves the convenience and applicability of chassis installation.

[0013] Further, the drainage channel includes a first flow channel and a second flow channel, and both the first flow channel and the second flow channel are arranged in a U shape.

[0014] Further, at least one side of the first flow channel and the second flow channel is arranged in a communicating state.

[0015] This setting enhances the drainage effect on the inner chassis of the heat exchange device.

[0016] Further, a positioning press is provided on the support part, and the positioning press is used for pre-positioning during chassis installation.

[0017] This setting facilitates the installation of the chassis and improves the installation efficiency during assembly by workers.

[0018] Further, the positioning press has a concave structure protruding downward, including a press bottom plate. A third drain hole and a fixing hole are provided on the press bottom plate, and a flap is provided on the side of the fixing hole away from the heat exchange device.

[0019] This setting ensures the convenience and reliability of pre-positioning and assembly of the chassis and the lower cross beam. At the same time, the rainwater in the positioning press is discharged through the third drain hole, reducing the corrosion of the chassis fixing screws by rainwater, preventing screw aging, and increasing the service life of the machine.

[0020] Further, a slot is provided on the support part, and the slot is used for pre-positioning when the heat exchange device is installed on the chassis.

[0021] This setting further improves the installation efficiency of workers for installing the condenser and reduces production errors.

[0022] Further, the support part and the installation part are arranged in a stepped shape, the horizontal height of the support part is higher than the horizontal height of the installation part, and a flanging is provided around the outer periphery of the support part.

[0023] This setting further improves the ability to quickly and reliably discharge rainwater and condensate through the second drain hole and the drainage channel on the chassis after the rainwater flows from the heat exchange device to the chassis, avoiding the accumulation of rainwater or condensate in the chassis.

[0024] Furthermore, a plurality of press-forming structures are provided on the installation part. Press-forming grooves or reinforcing grooves are formed between the press-forming structures. The press-forming grooves communicate with the drainage channels. The periphery of the reinforcing grooves is surrounded by the press-forming structures. A fourth drainage hole is provided in the reinforcing grooves.

[0025] This setting enhances the structural strength of the chassis and improves the performance of the outdoor unit.

[0026] Furthermore, an outlet pipe hole is provided on the installation part. The long axis direction of the outlet pipe hole is arranged parallel to the length direction of the chassis, or the long axis direction of the outlet pipe hole forms an angle of 15° to 60° with the length direction of the chassis.

[0027] This setting further improves the compactness of the pipeline layout of the outdoor unit, facilitates the installation of the outlet pipe, and improves the space utilization rate of the chassis and the outdoor unit.

[0028] Compared with the prior art, the chassis structure of the present invention has the following advantages:

[0029] (1) For the chassis structure of the present invention, a plurality of drainage holes and drainage channels are respectively provided in the support part and the installation part of the chassis, which facilitates the rapid and reliable drainage of the chassis, prevents water from accumulating inside the machine, and ensures the performance of the air conditioner outdoor unit.

[0030] (2) For the chassis structure of the present invention, a pre-installed condenser card slot is provided in the support part of the chassis, which facilitates the installation of the condenser by workers. By providing a positioning press-forming in the support part of the chassis, the rapid pre-positioning installation of the chassis is facilitated, achieving the purpose of reducing the number of workers and improving efficiency. The new chassis structure can greatly reduce the installation time of workers.

[0031] (3) For the chassis structure of the present invention, through reasonable improvement of the chassis structure, both the reliability of the chassis structure drainage and the convenience of the installation of the chassis structure and the condenser are improved. And the press-forming of the installation part on the chassis is reasonably designed to meet the orderly installation of other components of the outdoor unit.

[0032] Another object of the present invention is to provide an air conditioner, including an air conditioner outdoor unit. The air conditioner outdoor unit includes the chassis structure as described above. An air-liquid separator assembly, an oil separator, and a four-way valve are further provided on the chassis. The heat exchange device includes two condensers. Each condenser is arranged in a U shape, and its placement position corresponds to the drainage channel. An inspection opening is formed in front of the two condensers.

[0033] The air conditioner has the same advantages as the above-mentioned chassis structure compared with the prior art, and will not be elaborated here. Description of the Drawings

[0034] The accompanying drawings, which form a part of the present invention, are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0035] Figure 1 It is a top view structural schematic diagram of the chassis according to the embodiment of the present invention;

[0036] Figure 2 It is a side view structural schematic diagram of the chassis according to the embodiment of the present invention;

[0037] Figure 3 It is a top view structural schematic diagram of the assembly of the chassis and the condenser according to the embodiment of the present invention;

[0038] Figure 4 It is a front view structural schematic diagram of the assembly of the chassis and the condenser according to the embodiment of the present invention;

[0039] Figure 5 is Figure 4 A partial enlarged structural schematic diagram of the W part in;

[0040] Figure 6 is Figure 4 A structural schematic diagram of the positioning press molding in;

[0041] Figure 7 It is a front view of an outdoor unit of an air conditioner according to the embodiment of the present invention;

[0042] Figure 8 It is a top view (with some pipeline structures omitted) of an outdoor unit of an air conditioner according to the embodiment of the present invention;

[0043] Figure 9 It is a top view (with the valve body and pipeline structures removed) of an outdoor unit of an air conditioner according to the embodiment of the present invention;

[0044] Figure 10 It is a top view (with the valve body and pipeline structures) of an outdoor unit of an air conditioner according to the embodiment of the present invention;

[0045] Figure 11 It is a structural schematic diagram of an outdoor unit of an air conditioner according to the embodiment of the present invention;

[0046] Explanation of reference numerals:

[0047] 1. Chassis; 1a. First median line; 1b. Second median line; 101. Mounting part; 101a. Profiled structure; 101b. Profiled groove; 1011. First profiled boss; 1012. First profiled groove; 1013. Pipe outlet hole; 1014. Second profiled boss; 1015. Third profiled boss; 1016. Fourth profiled boss; 1017. Fifth profiled boss; 1018. Reinforcing groove; 1019. Second profiled groove; 102. Support part; 103. Drainage channel; 1031. First flow channel; 1032. Second flow channel; 104. First drain hole; 105. Second drain hole; 106. Positioning profile; 1061. Profiled bottom plate; 1062. Third drain hole; 1063. Fixing hole; 10631. Flap; 107. Slot; 108. Flange; 109. Fourth drain hole; 2. First condenser; 201. Flanged plate; 3. Second condenser; 4. First compressor; 41. First liquid receiver; 5. Second compressor; 51. Second liquid receiver; 6. Four-way valve; 7. First gas-liquid separator; 71. First gas separation outlet; 8. Second gas-liquid separator; 81. Second gas separation outlet; 9. Oil separator; 91. Oil separation inlet; 10. Stop valve; 11. Foot; 12. Exhaust pipe; 13. First valve pipe; 14. Second valve pipe; 15. Third valve pipe; 16. Fourth valve pipe; 17. Suction pipe; 18. Maintenance opening; 19. Rear of the unit. Detailed implementation manner

[0048] In order to make the technical means, achieved purposes and effects of the present invention easy to understand, the embodiments of the present invention will be described in detail below with reference to specific illustrations.

[0049] It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments can be combined with each other. For the convenience of introducing and understanding the solution, the direction terms in this application are all based on the direction of the outdoor unit of the air conditioner in the normal installation and placement state, and specific reference can be made to the direction indication in the attached Figure 3 Appendix Figure 7 See the direction indication in the appendix. At the same time, "gas separation" in this application is an abbreviation for gas-liquid separator, and "oil separation" is an abbreviation for oil separator.

[0050] Embodiment 1

[0051] As Figures 1 - 7 shown, the present invention discloses a chassis, including:

[0052] A mounting part 101 for mounting the compressor device;

[0053] A support part 102 for supporting and fixing the heat exchange device;

[0054] Among them, the support part 102 is arranged on the outer periphery of the installation part 101. A drainage channel 103 is arranged at the position where the support part 102 is connected to the installation part 101. The drainage channel 103 is used to receive the water flow inside the heat exchange device. A first drainage hole 104 is arranged on the drainage channel 103, and a second drainage hole 105 is arranged on the support part 102. The second drainage hole 105 is used to drain the water flow outside the heat exchange device.

[0055] In the chassis structure disclosed by the present invention, by respectively arranging two drainage structures on the inner side and the outer side of the heat exchange device on the chassis, the accumulated water on the chassis can be quickly and thoroughly discharged, preventing the accumulated water from remaining inside the chassis and affecting the normal use of other electrical components.

[0056] As a preferred example of the present invention, a part of the structure of the heat exchange device covers the second drainage hole 105. This setting enables at least part of the structure of the second drainage hole 105 not to be covered by the heat exchange device, and the remaining part of the structure of the second drainage hole 105 is arranged below the heat exchange device. On the one hand, it ensures the reliability of draining water outside the heat exchange device, enabling a part of the water flowing down from the outside of the heat exchanger to flow out through the uncovered second drainage hole 105 or the uncovered part of the structure of the second drainage hole 105, and the water in the fin gap of the heat exchanger can flow down through the gap into the covered second drainage hole 105 or the covered part of the structure of the second drainage hole 105 and directly flow out. At the same time, it also enables the chassis described in the present invention to be applied to various outdoor unit models, and improves the installation convenience.

[0057] As a preferred example of the present invention, the installation part 101 is generally arranged in a rectangular shape. The drainage channel 103 includes a first flow channel 1031 and a second flow channel 1032, and the first flow channel 1031 and the second flow channel 1032 are arranged in a U shape. As a preference, at least one side of the first flow channel 1031 and the second flow channel 1032 can be arranged in a communicating state, and a plurality of first drainage holes 104 are arranged on both the first flow channel 1031 and the second flow channel 1032. This setting not only enhances the drainage effect inside the heat exchange device but also facilitates the processing and manufacturing of the chassis.

[0058] As a preferred example of the present invention, a positioning press 106 is arranged on the support part 102. The positioning press 106 is used for pre-positioning during the installation of the chassis. By arranging a plurality of positioning presses 106 on the support part 102 of the chassis 1, the chassis 1 can be pre-positioned on the lower crossbeam, facilitating the installation of the chassis and improving the installation efficiency during the assembly by workers.

[0059] As an example of the present invention, the positioning press mold 106 has a downwardly convex concave structure, including a press mold bottom plate 1061. A third drain hole 1062 and a fixing hole 1063 are provided on the press mold bottom plate 1061. A flap 10631 is provided on the side of the fixing hole 1063 away from the heat exchange device. This setting discloses a specific structure of the positioning press mold 106. On the one hand, it facilitates the processing and manufacturing of the chassis, ensuring the convenience and reliability of the pre-positioning assembly of the chassis and the lower cross beam. At the same time, a third drain hole 1062 and a fixing hole 1063 are provided in the positioning press mold 106. The fixing hole 1063 is used for the screw connection between the chassis 1 and the lower cross beam, and the third drain hole 1062 is used for discharging rainwater in the positioning press mold 106. A flap 10631 is provided on the side of the fixing hole 1063 away from the heat exchange device, so that there is a certain gap between the lower surface of the press mold bottom plate 1061 and the lower cross beam, facilitating the rainwater in the positioning press mold 106 to be discharged through the third drain hole 1062. When rainwater enters the positioning press mold 106, it prevents the screws from aging, and each positioning press mold 106 is provided with an additional third drain hole 1062.

[0060] As a preferred example of the present invention, a slot 107 is provided on the support portion 102, and the slot 107 is used for pre-positioning when the heat exchange device is installed on the chassis. Specifically, the heat exchange device includes two U-shaped condensers, namely a first condenser 2 and a second condenser 3. The two condensers are placed in a butt shape on the chassis support portion 102. Flanging plates 201 extending downward are provided at both ends of each condenser. Four slots 107 are correspondingly provided on the support portion 102, so that when the condensers are installed from top to bottom, the flanging plates 201 on the condensers can be inserted into the slots 107 to achieve pre-positioning during the installation of the condensers.

[0061] This setting further improves the installation efficiency of the workers for the condensers and reduces production errors.

[0062] As an example of the present invention, the support portion 102 and the installation portion 101 are arranged in a stepped shape, and the horizontal height of the support portion 102 is higher than the horizontal height of the installation portion 101. A flange 108 is provided around the outer periphery of the support portion 102. This setting further improves the ability to quickly and reliably discharge rainwater through the second drain hole 105 and the drainage channel 103 on the chassis after the rainwater flows from the heat exchange device to the chassis, avoiding the accumulation of rainwater or condensate in the chassis.

[0063] As an example of the present invention, a plurality of pressed structures 101a are provided in the installation part 101. The pressed structures 101a are used to install a compressor assembly, a gas-liquid separator assembly, and an oil separator. A pressed groove 101b or a strengthening groove 1018 is formed between the pressed structures 101a. The pressed groove 101b communicates with the drainage channel 103. The periphery of the strengthening groove 1018 is surrounded by the pressed structures 101a, and a fourth drainage hole 109 is provided in the strengthening groove 1018.

[0064] Specifically, as Figures 1 - 3 shown, in the top-down view, the center line of the chassis 1 in the left-right direction is denoted as the first center line 1a, and the center line of the chassis 1 in the front-back direction is denoted as the second center line 1b. The pressed structure 101a includes, from left to right, a first pressed boss 1011, a second pressed boss 1014, a third pressed boss 1015, a fourth pressed boss 1016, and a fifth pressed boss 1017. Among them, the first pressed boss 1011 is used to install and fix structures such as a stop valve, a solenoid valve, and an injection enthalpy assembly. A number of strengthening structures are provided on the first pressed boss 1011, and a number of pressed grooves 101b are formed on the outer periphery of the first pressed boss 1011, such as Figure 3 the first pressed groove 1012 in. The first pressed groove 1012 communicates with the second flow channel 1032. The main structure of the second pressed boss 1014 is arranged on the left side of the first center line 1a, and the third pressed boss 1015 is arranged on the right side of the first center line 1a. The compressor assembly includes a first compressor 4 and a second compressor 5. The first compressor 4 is fixedly installed on the second pressed boss 1014, and the second compressor 5 is fixedly installed on the third pressed boss 1015. An irregular strengthening groove 1018 is formed between the second pressed boss 1014 and the third pressed boss 1015, and a fourth drainage hole 109 is provided in the strengthening groove 1018. On the right side of the third pressed boss 1015, there are a fourth pressed boss 1016 and a fifth pressed boss 1017. A number of pressed grooves 101b communicating with the drainage channel 103 are provided on the fourth pressed boss 1016 and the fifth pressed boss 1017, such as the second pressed groove 1019. An irregular strengthening groove 1018 is formed between the fourth pressed boss 1016 and the fifth pressed boss 1017, and a fourth drainage hole 109 is also provided in the strengthening groove. The fourth pressed boss 1016 and the fifth pressed boss 1017 are used to install a first gas-liquid separator 7 and a second gas-liquid separator 8.

[0065] This setting discloses a corrugated structure of the installation part. By forming a large drainage channel 103 at the connection between the installation part 101 and the support part 102 on the chassis, due to the height difference formed by the drainage channel 103 and the corrugated chassis, when the condensed water flows down from the condenser, it flows into the drainage channel 103 and is thus discharged through the first drainage hole 104. Different corrugated grooves 101b and strengthening grooves 1018 are formed on the corrugated structure, which not only enhances the strength of the chassis but also facilitates the drainage of rainwater and condensed water. Moreover, drainage holes also exist separately in some relatively low corrugations (such as the strengthening groove 1018), so that rainwater or condensed water will not accumulate in the chassis, improving the service performance of the outdoor unit.

[0066] As a preferred example of the present invention, an outlet pipe hole 1013 is provided on the installation part 101. The long axis direction of the outlet pipe hole 1013 is arranged parallel to the length direction of the chassis, or the long axis direction of the outlet pipe hole 1013 forms an angle of 15° - 60° with the length direction of the chassis. Preferably, the long axis direction of the outlet pipe hole 1013 forms an angle of 30° - 45° with the length direction of the chassis. Specifically, as an example of the present invention, the corrugated structure on the left side of the first center line 1a mainly installs structures such as a stop valve, a solenoid valve, and an injection enthalpy component, the corrugated structure near the first center line 1a mainly installs a compressor component, and the corrugated structure on the right side of the first center line 1a mainly installs a gas-liquid separator component. Relatively speaking, the devices and pipelines arranged on the right side of the first center line 1a are more complex. The outlet pipe hole 1013 is arranged on the corrugated structure on the left side of the first center line 1a. When the long axis direction of the outlet pipe hole 1013 is arranged parallel to the length direction of the chassis, the outlet pipe hole 1013 generally faces the maintenance port 18 at this time, which is convenient for installing the connecting pipes of the indoor and outdoor units; when the long axis direction of the outlet pipe hole 1013 is arranged obliquely to the length direction of the chassis, the outlet pipe hole 1013 generally cannot face the maintenance port 18 at this time. In order to install the connecting pipe more conveniently, the outlet pipe hole needs to be oriented towards the maintenance port. If the space is not sufficient to meet the parallel arrangement, the inclined arrangement can also be adopted.

[0067] This setting further improves the compactness of the pipeline layout of the outdoor unit, facilitates the installation of the outlet pipe, and improves the space utilization rate of the chassis and the outdoor unit.

[0068] The chassis disclosed by the present invention is directed to the placement structure of a double U-shaped condenser. A drainage structure is correspondingly arranged at the placement position of the condenser and near the condenser inside the placement position of the condenser. For example, the second drainage holes 105 arranged on the support portion 102 and the drainage channel 103 arranged on the installation portion 101 in the example of this application. The second drainage holes 105 are arranged at the placement position of the condenser, and the second drainage holes 105 cannot be completely covered by the condenser. 10 to 50 second drainage holes 105 are arranged on the support portion 102. As an example, 22 second drainage holes 105 are arranged on the support portion 102 in this application. The diameter of the second drainage holes 105 is set to be about 28 mm, and the hole pitch is set to be about 180 mm. A drainage channel 103 is arranged inside the condenser. The drainage channel 103 includes a first flow channel 1031 and a second flow channel 1032 arranged symmetrically in a U shape. A first drainage hole 104 is arranged in the drainage channel 103. A plurality of first drainage holes 104 are arranged. In the example of the present invention, the drainage channel 103 is a downwardly concave structure and is at the lowest position of the chassis 1, facilitating all the accumulated water on the chassis 1 to flow into the drainage channel 103. 12 first drainage holes 104 arranged in the drainage channel 103 are evenly distributed in the drainage channel 103. The diameter of the first drainage holes 104 is set to be about 25 mm, and the hole pitch is set to be about 300 mm, thereby realizing the efficient and reliable discharge of condensed water and rainwater. By arranging different structures of corrugations on the installation portion 101 of the chassis 1, components such as a compressor assembly, a gas-liquid separator assembly, and an oil separator can be arranged on the corrugated surface. The arrangement of the corrugated surface can enhance the structure of the chassis 1 and ensure the stability of the operation of each component arranged on the corrugated surface. A flow channel is formed between the corrugations. Most of the flow channels are communicated with the drainage channel 103, but there are also some that cannot be communicated, such as the strengthening groove 1018. For those that cannot be communicated, a fourth drainage hole 109 is arranged at the bottom, thereby achieving the purpose of preventing water accumulation on the chassis.

[0069] In the chassis of the present invention, a plurality of positioning corrugations 106 and slots 107 are arranged on the support portion 102. The positioning corrugations 106 are used for pre-positioning the chassis on the lower cross beam, and the slots 107 are used for the quick pre-installation of the first condenser 2 and the second condenser 3. By improving the structure of the support portion 102 on the chassis 1, it is convenient for workers to install the condenser efficiently and conveniently, and at the same time, the convenience of chassis installation is also greatly improved, reducing the corrosion of the chassis fixing screws by rainwater, increasing the service life of the machine, and the new chassis structure can greatly reduce the installation time of workers.

[0070] Embodiment 2

[0071] This embodiment proposes an air conditioner, as shown in the attached Figures 1 - 11As shown, it includes the outdoor unit of an air conditioner. The outdoor unit of the air conditioner includes the chassis 1 as described in Embodiment 1. First, in the top-down view, the length direction of the chassis 1 in the left-right direction is denoted as D, and the width direction of the chassis 1 in the front-back direction is denoted as E. A heat exchange device, a compressor assembly, a gas-liquid separator assembly, an oil separator 9, and a four-way valve 6 are arranged on the chassis 1. The compressor assembly includes a first compressor 4 and a second compressor 5. The heat exchange device includes two condensers, namely a first condenser 2 and a second condenser 3. Each condenser is arranged in a U shape, and its placement position corresponds to the drainage channel 103. An inspection opening 18 is formed in the front side of the two condensers. In the top-down view, the center line of the inspection opening 18 coincides with the first center line 1a of the chassis 1, so that the inspection opening 18 of the outdoor unit of the air conditioner is centered on the whole outdoor unit, facilitating the inspection operation. On the chassis 1, the compressor assembly is arranged behind the inspection opening 18. In the front-back direction, the minimum distance between the compressor assembly and the inspection opening 18 is greater than the minimum distance between the compressor assembly and the back 19 of the unit of the chassis 1. At the same time, in the top-down view, the center of the first compressor 4 and the center of the second compressor 5 are respectively arranged on the left and right sides of the first center line 1a. The minimum distance between the center of the first compressor 4 and the first center line 1a is denoted as N, and the minimum distance between the center of the second compressor 5 and the first center line 1a is denoted as M, and N ≤ M.

[0072] Thus, by optimizing the relevant layout of the compressor assembly, the compressor assembly of the present application faces the inspection opening 18 and is close to the inspection opening 18. At the same time, the compressor assembly is located near the middle area of the chassis 1. Other outdoor unit components can be arranged behind or on the left and right sides of the compressor assembly. On the one hand, the compressor assembly can be directly inspected at the inspection opening 18 without being blocked by other components. On the other hand, since the mass of the compressor is relatively large and the compressor assembly is near the middle area of the chassis 1, it can effectively ensure that the center of gravity of the outdoor unit of the multi-connected air conditioner is located in the middle of the unit, improving the stability of the air conditioner during placement and transportation and being beneficial to reducing the risk of transportation damage of the outdoor unit of the multi-connected air conditioner. In addition, setting N ≤ M makes the whole compressor assembly slightly inclined to the right side, thus making appropriate space for the stop valve on the left and the corresponding refrigerant pipelines, enabling the stop valve on the left and the corresponding refrigerant pipelines to be appropriately exposed from the inspection opening. This not only facilitates the disassembly, installation and maintenance of the stop valve and the relevant pipelines, but also facilitates the connection operation between the outdoor unit and the indoor unit through the stop valve.

[0073] Preferably, in the top-down view, the center line of the inspection opening 18 coincides with the first center line 1a of the chassis 1, so that the inspection opening 18 of the outdoor unit of the air conditioner is centered on the whole outdoor unit, facilitating the inspection operation.

[0074] Preferably, in the front-rear direction, the minimum distance between the compressor assembly and the maintenance opening 18 is less than the minimum distance between the compressor assembly and the rear surface 19 of the unit chassis 1, so that the compressor assembly is preferably located at the maintenance opening 18 to avoid being blocked by other components.

[0075] For components such as the heat exchange device, compressor assembly, gas-liquid separator assembly, oil separator 9, four-way valve 6, etc., conventional air-conditioning components can be used and connected through refrigerant pipelines. At the same time, in the air-conditioning field, the refrigerant pipeline between the compressor assembly and the oil separator 9 is often called the exhaust pipeline, and the exhaust pipeline can refer to the Figures 10 - 11 exhaust pipe 12 in the appendix, and the refrigerant pipeline between the gas-liquid separator assembly and the compressor assembly is often called the return pipeline, and the return pipeline can refer to the Figures 10 - 11 return pipe 17 in the appendix. The four-way valve 6 can be connected to the heat exchange device, gas-liquid separator assembly, oil separator 9, and indoor unit through refrigerant pipelines respectively. In view of the self-structure, operating principle, etc. of each component of the multi-connected air conditioner, existing technologies can be adopted and will not be elaborated here. In the left-right direction, the width of the maintenance opening 18 is denoted as C, and the length of the chassis 1 is denoted as D.

[0076] Regarding the layout of the first compressor 4 and the second compressor 5, preferably, M > N, and M / N = 2.5 - 4.5, so that the compressor assembly is not completely centered but is concentrated slightly towards one side of the chassis 1, which is beneficial for reserving a certain assembly space for other components of the outdoor unit of the air conditioner (such as the stop valve 10, electrical control components, fan, etc.), as shown in the Figures 8 - 9 appendix where the compressor assembly is slightly biased towards the right side of the chassis 1 as a whole. Of course, it can also be mirror-set so that the compressor assembly is slightly biased towards the left side of the chassis 1 as a whole.

[0077] To avoid the first compressor 4 and the second compressor 5 being too close to each other, the first compressor 4 and the second compressor 5 are arranged staggeredly. Specifically, the minimum distance between the center of the first compressor 4 and the center of the second compressor 5 is denoted as G, and 220mm ≤ G ≤ 300mm; the distance component of G in the front-rear direction is denoted as F, and 20mm ≤ F ≤ 60mm. Thus, on the basis of maximizing the compact layout of the compressor assembly, an appropriate spacing is provided between the first compressor 4 and the second compressor 5, and at the same time, the needs of actual component assembly and pipeline layout can also be met.

[0078] Meanwhile, for the centers of the first compressor 4 and the second compressor 5, there will always be a compressor center closest to the maintenance opening 18, or closest to the front end of the chassis 1. Given that the maintenance opening 18 and the front end of the chassis 1 are substantially overlapped, for the sake of convenience in description, the maintenance opening 18 is taken as the reference uniformly. To avoid the compressor unit being too far forward, taking the center of the second compressor 5 being closest to the maintenance opening 18 as an example, that is, the minimum distance between the center of the second compressor 5 and the maintenance opening 18 is less than the minimum distance between the center of the first compressor 4 and the maintenance opening 18. Denote the minimum distance between the center of the second compressor 5 and the maintenance opening 18 as Q, and denote the width of the chassis 1 as E. Q / E = 0.18 - 0.35, so that the whole compressor unit is close to the maintenance opening 18 (or the front end of the chassis 1). On the one hand, it is convenient for regular maintenance of the compressor unit. On the other hand, it avoids the compressor unit being too far forward, preventing the center of gravity of the whole outdoor unit of the air conditioner from moving forward, and also reserves an assembly space for the sound-absorbing cotton wrapped around the compressor, preventing the sound-absorbing cotton from touching the front-side components of the outdoor unit of the air conditioner (such as the front panel). At the same time, enough space is reserved behind the compressor unit to facilitate the arrangement of other components or pipelines.

[0079] Both the first compressor 4 and the second compressor 5 can adopt conventional air-conditioning compressors, which usually have liquid receivers. In this application, the first compressor 4 has a first liquid receiver 41, and the second compressor 5 has a second liquid receiver 51. To avoid unnecessary space interference caused by the liquid receivers, the first compressor 4 and the second compressor 5 are arranged in an external "eight" shape. Specifically, in the top view, denote the line connecting the center of the first liquid receiver 41 and the center of the first compressor 4 as the first line V1, and denote the line connecting the center of the second liquid receiver 51 and the center of the second compressor 5 as the second line V2. The extension line of the first line V1 extending forward intersects with the extension line of the second line V2 extending forward. At the same time, denote the minimum angle between the first line V1 and the left-right direction as H, 40° ≤ H ≤ 80°, and denote the minimum angle between the second line V2 and the left-right direction as I, 40° ≤ I ≤ 80°. Thus, the first compressor 4 and the second compressor 5 are arranged in an external "eight" shape at a specific direction and specific angle, so that a relatively large assembly space can be formed between the first line V1 and the second line V2, providing a margin for pipeline arrangement. At the same time, it is also beneficial to concentrate most of the refrigerant pipelines in this assembly space, which is conducive to further improving the compactness of the internal layout of the outdoor unit of the multi-connected air conditioner.

[0080] For the arrangement of the gas-liquid separator assembly, the gas-liquid separator assembly is arranged on one side of the compressor assembly. The gas-liquid separator assembly includes a first gas-liquid separator 7 and a second gas-liquid separator 8. The two gas-liquid separators of the gas-liquid separator assembly correspond to the two compressors in the compressor assembly one by one and are connected through refrigerant pipelines. The first gas-liquid separator 7 and the second gas-liquid separator 8 are both conventional gas separators, having structures such as gas separation outlets and feet 11. To facilitate the installation of the first gas-liquid separator 7 and the second gas-liquid separator 8, the feet 11 of the first gas-liquid separator 7 and the feet 11 of the second gas-liquid separator 8 are both located on both sides of the connection line between the center of the first gas-liquid separator 7 and the center of the second gas-liquid separator 8, so that any foot 11 is not in the narrow area between the first gas-liquid separator 7 and the second gas-liquid separator 8, facilitating the fixing of the first gas-liquid separator 7 and the second gas-liquid separator 8 on the chassis 1 through fasteners, without spatial interference during disassembly and assembly, and facilitating the disassembly and assembly of the gas-liquid separator assembly by assembly personnel or maintenance personnel.

[0081] Preferably, the arrangement of the first gas-liquid separator 7 and the second gas-liquid separator 8 is also in an "eight" shape. Specifically, in the left-right direction, the first gas-liquid separator 7 is provided with a first gas separation outlet 71 on the side close to the compressor unit, and the second gas-liquid separator 8 is provided with a second gas separation outlet 81 on the side close to the compressor unit; in the top-down view, the connection line between the center of the first gas-liquid separator 7 and the first gas separation outlet 71 is denoted as the third connection line V3, and the connection line between the center of the second gas-liquid separator 8 and the second gas separation outlet 81 is denoted as the fourth connection line V4. The third connection line V3 extends forward, the fourth connection line V4 extends backward, and the extension line of the third connection line V3 extending forward intersects with the extension line of the fourth connection line V4 extending backward. At the same time, the minimum angle between the third connection line V3 and the left-right direction is denoted as K, 50° ≤ K ≤ 70°, and the minimum angle between the fourth connection line V4 and the left-right direction is denoted as L, 10° ≤ L ≤ 30°. Thus, through the arrangement of the first gas-liquid separator 7 and the second gas-liquid separator 8 in a specific position, specific direction, and specific angle in an "eight" shape, the distances from the first gas separation outlet 71 and the second gas separation outlet 81 to the compressor assembly are both in a relatively short position, which is beneficial to optimizing the layout of the relevant refrigerant pipelines, while reducing the length of the refrigerant pipelines and facilitating the saving of pipelines.

[0082] Based on the "eight"-shaped arrangement of the gas-liquid separator assembly, the first gas-liquid separator 7 is located behind the second gas-liquid separator 8, and the connection line between the first gas separation outlet 71 and the second gas separation outlet 81 is parallel to the front-back direction. In this way, based on the "eight"-shaped arrangement of the gas-liquid separator assembly, with the left-right direction as the axis of symmetry, the first gas-liquid separator 7 and the second gas-liquid separator 8 are approximately mirror-image arranged (or called symmetric layout). This also enables the outlet refrigerant pipes of the first gas-liquid separator 7 and the second gas-liquid separator 8 to have the same structure, that is, the outlet refrigerant pipes of the two can be mutually universal, which is beneficial to improving the compatibility of the outlet refrigerant pipes of the gas-liquid separator assembly. Then, the outlet refrigerant pipes of the first gas-liquid separator 7 and the second gas-liquid separator 8 converge through a tee structure and are connected to the return pipe 17. Correspondingly, the return pipe 17 can also be horizontally arranged along the left-right direction, making the pipeline structure of the return pipeline between the gas-liquid separator assembly and the compressor assembly run neatly and orderly. This not only facilitates pipeline assembly, positioning, and welding but also helps improve space utilization rate.

[0083] For the oil separator 9 in this application, preferably, one oil separator 9 is provided. The oil separator 9 is arranged behind the compressor assembly. Denote the minimum distance between the center of the oil separator 9 and the back surface 19 of the unit as T, and the ratio of T to the width E of the chassis 1 is 0.25 - 0.40. Thus, while the compressor assembly is relatively close to the front side of the outdoor unit and the compressor assembly is arranged in an external "eight"-shaped pattern, the oil separator 9 is relatively close to the rear side of the outdoor unit, enabling the oil separator 9 and the compressor assembly to have relatively ample layout space, being able to fully and reasonably arrange the exhaust pipeline structure between the oil separator 9 and the compressor assembly without spatial interference with the return pipeline structure, which is beneficial to optimizing the layout of relevant refrigerant pipelines. At the same time, in this application, the space formed between the oil separator 9 and the compressor assembly is mainly used to arrange refrigerant pipelines.

[0084] The oil separator 9 has the same structure as a conventional oil separator and has an oil separation inlet 91. In the front-back direction, the oil separation inlet 91 is located on the side of the oil separator 9 close to the compressor assembly. Denote the connection line between the center of the oil separator 9 and the oil separation inlet 91 as the oil separation connection line, and the minimum included angle between the oil separation connection line and the left-right direction as J, where 10° ≤ J ≤ 30°. That is, the oil separation inlet 91 does not directly face the compressor assembly but is located on the relative side of the space between the oil separator 9 and the compressor assembly, avoiding the oil separation inlet 91 occupying the central part of the space between the oil separator 9 and the compressor assembly and avoiding spatial interference with the routing of relevant refrigerant pipelines. At the same time, it also minimizes the distance between the oil separation inlet 91 and the compressor assembly to the greatest extent, which is beneficial to shortening the length of the exhaust pipeline structure.

[0085] For the compressor assembly, the gas-liquid separator assembly, and the oil separator 9, they are often connected to the chassis 1, and only the layout in the top-down view needs to be optimized and improved. However, for the four-way valve 6, it is necessary to consider the actual layout of the refrigerant pipeline. Not only the layout in the top-down view needs to be considered, but also the layout in the vertical height needs to be considered to optimize and improve the layout of the four-way valve 6.

[0086] The four-way valve 6 is arranged behind the maintenance port 18, and the length direction of the valve body of the four-way valve 6 is parallel to the left-right direction. In the vertical direction, the minimum distance between the four-way valve 6 and the chassis 1 is denoted as A, and the self-height of the heat exchange device is denoted as B, and A / B = 0.5 - 0.75.

[0087] Thus, by optimizing the layout of the four-way valve 6, the entire valve body of the four-way valve 6 faces the maintenance port 18. At the same time, through specific height limitations, on the one hand, it avoids the occlusion of the four-way valve 6 by other air-conditioning components, enabling people to directly access the four-way valve 6 through the maintenance port 18. On the other hand, it makes the four-way valve 6 located near the middle area of the entire outdoor unit of the air conditioner in the vertical height, making the height distances between the four-way valve 6 and components such as the heat exchange device interface, the gas-liquid separator assembly, and the oil separator 9 similar, facilitating the optimization of the layout of the refrigerant pipeline and avoiding the occurrence of individual pipe lengths being too long.

[0088] Preferably, the four-way valve 6 is horizontally arranged. Specifically, it means that the length direction of the four-way valve 6 is parallel to the horizontal plane. The horizontal plane here can refer to a horizontal plane at any height, and it can be regarded as the four-way valve 6 being arranged on a horizontal plane at a certain height. At this time, in the top-down view, without special limitations, the length direction of the valve body of the four-way valve 6 can be parallel to the front-back direction, or parallel to the left-right direction, or parallel to other directions in the horizontal plane. Of course, in this application, the length direction of the valve body of the four-way valve 6 is defined as parallel to the left-right direction.

[0089] Regarding the connection of the four-way valve 6, as shown in the attachment Figures 8 - 11 The first valve pipe 13 of the four-way valve 6 is connected to the outlet of the oil separator 9, the second valve pipe 14 of the four-way valve 6 is connected to the heat exchange device, the third valve pipe 15 of the four-way valve 6 is connected to the stop valve 10 and communicates with the indoor unit through the stop valve 10, and the fourth valve pipe 16 of the four-way valve 6 is connected to the gas-liquid separator assembly.

[0090] The four-way valve 6 is arranged at the rear of the compressor unit. In the front-rear direction, the minimum distance between the four-way valve 6 and the rear surface 19 of the unit on the chassis 1 is denoted as P, and the width of the chassis 1 is denoted as E, with P / E = 0.2 - 0.5. Thus, the four-way valve 6 is arranged between the compressor unit and the heat exchange device at the rear surface 19 of the unit, such that it is also near the middle region of the entire outdoor unit of the air conditioner in the front-rear direction, making the horizontal distances between the four-way valve 6 and the interfaces of the heat exchange device, the gas-liquid separator assembly, the oil separator 9, and other components similar, facilitating the optimization of the layout of the refrigerant pipelines and avoiding the occurrence of overly long individual pipelines.

[0091] Considering that the four-way valve 6 is connected to the gas-liquid separator assembly, the oil separator 9, and the stop valve 10 simultaneously, especially that the gas-liquid separator assembly in this application includes two gas separators, and in the left-right direction, the two gas separators are arranged on the same side of the compressor assembly. To avoid overcrowding of some pipelines of the four-way valve 6 and also avoid spatial interference, this application further optimizes the relative arrangement of components such as the four-way valve 6, the gas-liquid separator assembly, the oil separator 9, and the stop valve 10.

[0092] For the first valve pipe 13 as the inlet pipe of the four-way valve 6, the first valve pipe 13 is connected to the valve port on the upper side of the four-way valve 6, while the remaining second valve pipe 14, third valve pipe 15, and fourth valve pipe 16 are connected to the three valve ports on the lower side of the four-way valve 6. The layout of the relevant refrigerant pipelines also needs to be comprehensively considered in combination with the horizontal and vertical directions.

[0093] In the left-right direction, the gas-liquid separator assembly is arranged on one side of the compressor assembly, and the stop valve 10 is arranged on the other side of the compressor assembly. Or rather, the gas-liquid separator assembly is arranged on one side of the four-way valve 6, and the stop valve 10 is arranged on the other side of the four-way valve 6, thereby avoiding the situation where multiple components are all arranged on the same side, enabling the third valve pipe 15 and the fourth valve pipe 16 of the four-way valve 6 to be laid out in different directions. As shown in the appendix Figure 10 It can be interpreted that the third valve pipe 15 extends and is laid out towards the right, and the fourth valve pipe 16 extends and is laid out towards the left, avoiding overcrowding of the refrigerant pipelines and also avoiding the occurrence of situations such as possible spatial interference, interference fit, and temperature difference heat transfer interference between different pipelines.

[0094] In a top-down view, the oil separator 9 is arranged between the four-way valve 6 and the gas-liquid separator assembly. On the one hand, it ensures that the distances of the oil separator 9 from the four-way valve 6 (in terms of height) and from the compressor assembly (in terms of horizontal length) are similar. On the other hand, it makes full use of the height misalignment of the first valve pipe 13 and the fourth valve pipe 16, enabling the first valve pipe 13 and the fourth valve pipe 16 to maximize the compactness of the refrigerant pipeline layout without interfering with each other. At the same time, according to the relative positions of the oil separator 9 and the four-way valve 6 described above, on the basis of the relatively compact layout among the oil separator 9, the four-way valve 6, the gas-liquid separator assembly, and the compressor assembly, a pipeline layout space is jointly formed, and the distances between the components are close. This not only helps improve the compactness and orderliness of the relevant refrigerant pipeline layout but also avoids the situation of individual refrigerant pipelines being too long. At the same time, each component is relatively arranged near the central area of the chassis 1, which helps further ensure that the center of gravity of the outdoor unit of the air conditioner is at the center of the unit, facilitating the transportation of the outdoor unit and improving the stability of the unit during transportation and installation.

[0095] In a top-down view, the centers of the first gas-liquid separator 7 and the second gas-liquid separator 8 are respectively arranged on both sides of the second center line 1b of the chassis 1. Preferably, on the basis that the four-way valve 6 is parallel to the left-right direction, it is as close as possible to coincide with the second center line 1b, that is, P / E is as close as possible to 0.5, so that the centers of the first gas-liquid separator 7 and the second gas-liquid separator 8 are respectively arranged on both sides of the four-way valve 6. When the four-way valve 6 is respectively connected to the first gas-liquid separator 7 and the second gas-liquid separator 8, the distance between the four-way valve 6 and the first gas-liquid separator 7 is similar to the distance between the four-way valve 6 and the second gas-liquid separator 8, which is convenient for optimizing the layout of the refrigerant pipeline and avoiding the occurrence of the situation where individual pipelines are too long, especially avoiding the situation where one pipeline is too long and the other is too short when the four-way valve 6 is connected to the gas-liquid separator assembly.

[0096] Preferably, the center of the four-way valve 6 in the length direction is arranged on the left side of the first center line 1a. On the basis that in this application, the oil separator 9 and the gas-liquid separator assembly are both arranged on the right side of the first center line 1a, by arranging the center of the four-way valve 6 on the left side of the first center line 1a, on the one hand, it reserves a certain space for the pipeline layout between the four-way valve 6 and the oil separator 9 and the gas-liquid separator assembly, avoiding overcrowding of the relevant valve pipes and preventing spatial interference between the valve pipes. On the other hand, it avoids the valve pipes of the four-way valve 6 being too close to the exhaust pipe and the return pipe, preventing spatial interference and fitting between the valve pipes of the four-way valve 6 and other refrigerant pipelines.

[0097] In a top-down view, the four-way valve 6 intersects perpendicularly with the first median line 1a. It should be noted that in a top-down view, it is the body of the four-way valve 6 that directly intersects with the first median line 1a, without any additional operations such as virtual extension or expansion of the four-way valve 6. Thus, based on the dimensional limitations of the four-way valve 6 with A / B = 0.5 - 0.75 and P / E = 0.2 - 0.5, the four-way valve 6 not only approaches the central region in terms of height and front-back direction, but also directly intersects with the first median line 1a in the left-right direction, that is, the four-way valve 6 is located at the center in the left-right direction, making the distances between the four-way valve 6 and the oil separator 9, the heat exchange device, the stop valve 10, and the gas-liquid separator assembly closer, facilitating the optimization of the refrigerant pipeline layout, avoiding the occurrence of individual pipelines being too long, and effectively reducing the risk of transportation damage to related pipelines and components.

[0098] In addition, the heat exchange device includes a first condenser 2 and a second condenser 3. The front ends of the first condenser 2 and the second condenser 3 form a maintenance opening 18, and refrigerant interfaces are provided at the rear ends of both the first condenser 2 and the second condenser 3, which are connected to the second valve pipe 14 of the four-way valve 6. Considering the overall machine center of gravity stability under the layout of the two condensers, the first condenser 2 and the second condenser 3 are symmetrically arranged with respect to the first median line 1a of the chassis 1. At the same time, the main body of the second valve pipe 14 coincides with the first median line 1a, and then the main body of the second valve pipe 14 continues to be connected to the first condenser 2 and the second condenser 3 respectively through two branch pipes. Correspondingly, these two branch pipes are also symmetrically arranged with respect to the first median line 1a, which not only ensures the overall machine center of gravity stability under the layout of the two condensers, but also improves the compatibility of the branch pipes in the second valve pipe 14, facilitating pipeline welding and assembly. That is, as a preferred solution of the present application, the second valve pipe 14 is an overall symmetric structure. In a top-down view, the second valve pipe 14 not only coincides with the first median line 1a, but also the axis of symmetry of the second valve pipe 14 coincides with the first median line 1a. On the one hand, it ensures that the four-way valve 6 directly intersects with the first median line 1a, and on the other hand, it makes the distances from the second valve pipe 14 to the first condenser 2 and the second condenser 3 exactly the same. The two branch pipes of the second valve pipe 14 can be directly arranged in a mirror image (or symmetrically arranged), improving the compatibility of related pipelines, being conducive to improving production efficiency and reducing pipeline costs.

[0099] In the present invention, for any air conditioner, it may include the outdoor unit of the air conditioner described in this embodiment. And based on the relevant structures, assembly relationships, and layout situations of the outdoor unit of the air conditioner provided in this embodiment, the air conditioner further includes conventional components of the air conditioner outdoor unit such as electrical control components and sensors. Similarly, the air conditioner also includes an air conditioner indoor unit and related components. Since they are all prior arts, no further elaboration will be made here.

[0100] It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments can be combined with each other. For the convenience of introducing and understanding the solution, the direction terms in this application are all based on the direction of the outdoor unit of the air conditioner in the normal installation and placement state, and specific reference can be made to the direction indication in the attached Figures 7 - 8 drawing. At the same time, in this application, "gas separator" is the abbreviation of gas-liquid separator, and "oil separator" is the abbreviation of oil separator. In this application, from the top-down perspective, the "left-right direction" is parallel to the second center line 1b of the chassis 1, and the "front-back direction" is parallel to the first center line 1a of the chassis 1. Based on this parallel relationship, the angles involved in this application with respect to the left-right direction can all be equivalently regarded as the angles with respect to the second center line 1b. For example: in the attached Figure 9 drawing, the "minimum angle H between the first connection line V1 and the left-right direction" is equivalent to the angle between the first connection line V1 and the second center line 1b, and the same is true for angles I, J, K, L, etc., without further elaboration; for the front-back direction, it is the same reason.

[0101] In addition, in view of the fact that the main bodies of components such as the compressor and the gas separator are approximately cylindrical, when introducing the centers of relevant components in this application, it is all based on the top-down perspective, and the center of the circle in the top view is used as the center of the relevant component; the dimensions, distances, connection lines, etc. related to the center of the relevant component are also based on the top-down perspective. At the same time, when introducing contents such as distances, dimensions, and connection lines in this application, specific drawings can be referred to, and the perspective in the actual drawings shall prevail. For example, the dimension marks A and B in the attached Figure 7 drawing are based on the front view perspective (i.e., from the front to the back direction), and the dimensions such as E, P, T, Q, etc. in the attached Figure 8 , 9 drawing are based on the top-down perspective, and the virtual lines such as the connection lines V1-V4 are based on the top-down perspective.

[0102] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A chassis structure, characterized in that, Comprising: An installation part (101) for installing a compressor device; A support part (102) for supporting and fixing a heat exchange device; Wherein, the support part (102) is arranged on the outer periphery of the installation part (101), a drainage channel (103) is arranged at the position where the support part (102) is connected to the installation part (101), a first drainage hole (104) is arranged on the drainage channel (103), and a second drainage hole (105) is arranged on the support part (102); the drainage channel (103) comprises a first flow channel (1031) and a second flow channel (1032), both the first flow channel (1031) and the second flow channel (1032) are arranged in a U shape; a positioning press type (106) is arranged on the support part (102), and the positioning press type (106) is used for pre-positioning during chassis installation; the positioning press type (106) is a concave structure protruding downward, comprising a press type bottom plate (1061), a third drainage hole (1062) and a fixing hole (1063) are arranged on the press type bottom plate (1061), and a flap (10631) is arranged on the side of the fixing hole (1063) away from the heat exchange device.

2. The chassis structure according to claim 1, wherein, Part of the second drainage hole (105) is not covered by the heat exchange device, or part of the structure of the second drainage hole (105) is not covered by the heat exchange device.

3. The chassis structure according to claim 1, wherein, A slot (107) is arranged on the support part (102), and the slot (107) is used for pre-positioning when the heat exchange device is installed on the chassis.

4. The chassis structure according to any one of claims 1 to 3, characterized in that The support part (102) and the installation part (101) are arranged in a stepped shape, the horizontal height of the support part (102) is higher than the horizontal height of the installation part (101), and a flange (108) is arranged around the outer periphery of the support part (102).

5. The chassis structure according to claim 4, characterized in that, A plurality of press type structures (101a) are arranged on the installation part (101), a press type groove (101b) or a strengthening groove (1018) is formed between the press type structures (101a), the press type groove (101b) is communicated with the drainage channel (103), the periphery of the strengthening groove (1018) is surrounded by the press type structures (101a), and a fourth drainage hole (109) is arranged in the strengthening groove (1018).

6. The chassis structure according to any one of claims 1 to 3, characterized in that, An outlet pipe hole (1013) is arranged on the installation part (101), the long axis direction of the outlet pipe hole (1013) is arranged parallel to the length direction of the chassis, or the long axis direction of the outlet pipe hole (1013) is arranged at an angle of 15° - 60° with the length direction of the chassis.

7. An air conditioner, characterized in that, Comprising an outdoor unit of an air conditioner, the outdoor unit of the air conditioner comprises the chassis structure according to any one of claims 1 - 6, a gas-liquid separator assembly, an oil separator (9), and a four-way valve (6) are further arranged on the chassis (1), the heat exchange device comprises two condensers, each condenser is arranged in a U shape, and its placement position corresponds to the drainage channel (103), and a maintenance opening (18) is formed in front of the two condensers.

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