Air conditioner outdoor unit

Abstract

The application discloses an outdoor unit of an air conditioner, which comprises a shell, a middle partition plate arranged in the shell, the middle partition plate separating the interior of the shell into a first mounting cavity and a second mounting cavity, a fan assembly and a condenser arranged in the first mounting cavity, an electric control assembly, a compressor assembly and a hydraulic module assembly arranged in the second mounting cavity, the electric control assembly comprising a driving unit, an outdoor unit control unit and an indoor unit control unit, the driving unit and the outdoor unit control unit arranged on the top of the middle partition plate through a closed box, a vertical indoor unit mounting plate arranged on one side of the closed box, the outdoor unit control unit arranged on the outer side surface of the indoor unit mounting plate, a closed side frame arranged on the outer side surface of the second mounting cavity and abutting against the indoor unit mounting plate, an opening window arranged on the position of the closed side frame corresponding to the indoor unit control unit, and a sealing cover arranged on the opening window. The application can improve the electrical isolation degree of the electric control assembly, prevent the electric control assembly from contacting with rainwater or refrigerant, and improve the safety of the electric control assembly in use.

Description

Technical Field

[0001] This invention relates to the field of air conditioning equipment technology, and in particular to an outdoor unit for an air conditioner. Background Technology

[0002] The internal layout of existing air conditioner outdoor units usually has the following common characteristics: compact layout, difficult disassembly and assembly, and inconvenient maintenance. Due to the compact layout, the electrical control components of the air conditioner outdoor unit are often close to the outdoor unit fan wheel and refrigerant tank. This often results in the outdoor unit fan wheel throwing rainwater onto the electrical control components or refrigerant entering the electrical control components. Undoubtedly, this will have a great negative impact on the electrical control components, and in severe cases, it may cause short circuits or explosions of the electronic components on the electrical control components.

[0003] It is evident that existing technologies still need improvement and enhancement. Summary of the Invention

[0004] In view of the shortcomings of the prior art, the purpose of the present invention is to provide an outdoor air conditioning unit that can improve the electrical isolation of the electronic control components, prevent the electronic control components from coming into contact with rainwater or refrigerant, and improve the safety of the electronic control components during use.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An outdoor unit for an air conditioner includes a housing with a partition dividing the interior of the housing into a first mounting cavity and a second mounting cavity. The first mounting cavity houses a fan assembly and a condenser. The second mounting cavity houses an electronic control assembly, a compressor assembly, a hydraulic module assembly, and an electronic expansion valve. The electronic control assembly includes a drive unit, an outdoor unit control unit, and an indoor unit control unit. The drive unit and the outdoor unit control unit are mounted on top of the partition via a sealed box. An indoor unit mounting plate is vertically mounted on one side of the sealed box, and the outdoor unit control unit is located on the outer surface of the indoor unit mounting plate. A closed side frame abuts against the indoor unit mounting plate on the outer side of the second mounting cavity. An opening is provided on the closed side frame corresponding to the position of the indoor unit control unit, and a sealing cover is provided on the opening. The compressor assembly and the hydraulic module assembly are both located below the sealed box, and the electronic expansion valve is located on top of the hydraulic module assembly.

[0007] In the aforementioned outdoor air conditioning unit, the enclosed box includes a box body, an upper cover, and a first sealing sponge portion. The box body is provided with a first mounting position and a second mounting position. The horizontal height of the second mounting position is higher than that of the first mounting position. The drive unit and the outdoor unit control unit are sequentially installed in the first mounting position and the second mounting position. The upper cover and the first sealing sponge portion are sequentially arranged from top to bottom on the top of the box body. One side of the box body is connected to the top of the middle partition, and the indoor unit mounting plate is snap-fitted to one side of the box body.

[0008] In the aforementioned outdoor unit of the air conditioner, the bottom of the housing is provided with a plurality of first heat dissipation slots communicating with the first mounting position, and the side of the housing facing the fan assembly is provided with a plurality of second heat dissipation slots communicating with the first mounting position.

[0009] In the outdoor unit of the air conditioner, the housing extends at least partially into the first mounting cavity, and a first water baffle is provided at the bottom of the housing below all the first heat dissipation slots, with a first heat dissipation gap formed between the first water baffle and the first heat dissipation slots; a second water baffle is provided on the outside of all the second heat dissipation slots, with a second heat dissipation gap formed between the second water baffle and the second heat dissipation slots.

[0010] In the outdoor unit of the air conditioner, a radiator extending downwards is provided at the bottom of the drive unit, and a clearance groove matching the radiator is provided at the bottom of the housing.

[0011] In the outdoor unit of the air conditioner, a clearance box is provided on the top of the partition plate, and the clearance box is provided with a groove that matches the radiator, and the top of the clearance box abuts against the bottom of the box body.

[0012] In the outdoor unit of the air conditioner, the inner side of the closed side frame is provided with a second sealing sponge part that abuts against the indoor unit mounting plate, located around the opening.

[0013] In the outdoor unit of the air conditioner, a refrigerant monitoring unit is provided on the partition plate below the enclosed box. The refrigerant monitoring unit is electrically connected to the drive unit, the outdoor unit control unit and the indoor unit control unit respectively. The refrigerant monitoring unit is used to monitor the refrigerant concentration in the second mounting cavity.

[0014] In the aforementioned outdoor air conditioning unit, a fixing frame is provided on the top of the hydraulic module assembly, and a positioning groove is provided on the fixing frame. The electronic expansion valve at least partially abuts against the positioning groove, and the electronic expansion valve and the fixing frame are connected by a strap unit.

[0015] In the outdoor unit of the air conditioner, the fan assembly includes a fan motor, a fan wheel, a motor bracket, and an air outlet cover. The fan motor is mounted in the first mounting cavity through the motor bracket. The fan wheel is driven to the output end of the fan motor. One side of the air outlet cover is connected to the middle partition plate, and the air outlet cover is located in front of the fan wheel. An air guide ring is provided on the inner side of the air outlet cover around the fan wheel.

[0016] Beneficial effects:

[0017] This invention provides an outdoor unit for an air conditioner, including a housing. A partition divides the housing into two independent installation areas: a first installation cavity and a second installation cavity. This effectively isolates the fan assembly and condenser from the electronic control assembly, preventing rainwater from splashing onto the electronic control assembly. The electronic control assembly is isolated by a sealed box and an indoor unit mounting plate, preventing rainwater from directly splashing onto the drive unit, outdoor unit control unit, and indoor unit control unit. Furthermore, the sealed box and indoor unit mounting plate are arranged at right angles, reducing the space occupied by the electronic control assembly in the second installation cavity and making the layout within the second installation cavity more compact. Moreover, placing the electronic control assembly above the compressor assembly allows it to avoid refrigerant settling at the bottom of the second installation cavity, and the sealed box improves the isolation performance of the electronic control assembly, preventing refrigerant from directly damaging the components on the electronic control assembly and enhancing its safety during use. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the outdoor unit of the air conditioner provided by the present invention;

[0019] Figure 2 Schematic diagram of the internal structure of the second mounting cavity in the outdoor unit of the air conditioner provided by the present invention. Figure 1 ;

[0020] Figure 3 Schematic diagram of the internal structure of the second mounting cavity in the outdoor unit of the air conditioner provided by the present invention. Figure 2 ;

[0021] Figure 4 This is a schematic diagram of the internal structure of the outdoor unit of an air conditioner provided by the present invention;

[0022] Figure 5 This is a schematic diagram of the disassembly structure of the enclosed box in the outdoor unit of the air conditioner provided by the present invention;

[0023] Figure 6 This is a schematic diagram of the disassembly structure of the housing in the outdoor unit of an air conditioner provided by the present invention;

[0024] Figure 7This is a schematic diagram of the assembly structure of the hydraulic module component and the electronic expansion valve in the outdoor unit of an air conditioner provided by the present invention;

[0025] Figure 8 This is a schematic diagram of the structure of the mounting bracket in the outdoor unit of the air conditioner provided by the present invention;

[0026] Figure 9 This is a schematic diagram of the fan assembly in the outdoor unit of an air conditioner provided by the present invention.

[0027] Key component symbols: 1-Housing, 11-Partition plate, 12-First mounting cavity, 13-Second mounting cavity, 14-Closed side frame, 15-Second sealing sponge part, 16-Gap box, 17-Groove, 18-Sealing cover, 2-Fan assembly, 21-Fan motor, 22-Impeller, 23-Motor bracket, 24-Air outlet cover, 25-Air guide ring, 3-Condenser, 4-Electrical control assembly, 41-Drive unit, 42-Outdoor unit control unit, 43-Indoor unit control unit, 5-Compressor assembly, 6-Hydraulic module assembly, 7-Electronic expansion... Expansion valve, 71-fixed bracket, 72-strap unit, 711-fixed plate, 712-connecting plate, 713-reinforcing plate, 714-positioning clamp groove, 715-strap through groove, 716-locking groove, 8-sealed box, 81-box body, 82-top cover, 83-first sealing sponge part, 811-first mounting position, 812-second mounting position, 813-first heat dissipation groove, 814-second heat dissipation groove, 815-first water baffle, 816-second water baffle, 817-avoidance groove, 9-indoor unit mounting plate, 10-refrigerant monitoring unit. Detailed Implementation

[0028] This invention provides an outdoor unit for an air conditioner. To make the objectives, technical solutions, and effects of this invention clearer and more explicit, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the invention and are not intended to limit the invention.

[0029] In the description of this invention, it should be understood that the terms "middle," "inner side," "outer side," etc., indicate the orientation or positional relationship of this invention based on the accompanying drawings, and are only for the convenience of describing the invention and simplifying the description. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features.

[0030] Please see Figures 1 to 9This invention provides an outdoor unit for an air conditioner, including a housing 1. A partition 11 is provided inside the housing 1, dividing the interior of the housing 1 into a first mounting cavity 12 and a second mounting cavity 13. A fan assembly 2 and a condenser 3 are disposed in the first mounting cavity 12. An electronic control assembly 4, a compressor assembly 5, a hydraulic module assembly 6, and an electronic expansion valve 7 are disposed in the second mounting cavity 13. The electronic control assembly 4 includes a drive unit 41, an outdoor unit control unit 42, and an indoor unit control unit 43. The drive unit 41 and the outdoor unit control unit 42 are connected by a sealed box 8. The top of the partition plate 11 and one side of the enclosed box 8 are provided with an indoor unit mounting plate 9. The outdoor unit control unit 42 is located on the outer side of the indoor unit mounting plate 9. The outer side of the second mounting cavity 13 is provided with a closed side frame 14 that abuts against the indoor unit mounting plate 9. The closed side frame 14 is provided with a window (not shown in the figure) corresponding to the position of the indoor unit control unit 43. A sealing cover 18 is provided on the window. The compressor assembly 5 and the hydraulic module assembly 6 are both located below the enclosed box 8. The electronic expansion valve 7 is located on the top of the hydraulic module assembly 6.

[0031] This application discloses an outdoor unit for an air conditioner, including a housing 81. A partition 11 divides the housing 81 into two independent installation areas: a first installation cavity 12 and a second installation cavity 13. This effectively isolates the fan assembly 2 and condenser 3 from the electrical control assembly 4, preventing rainwater from splashing onto the electrical control assembly 4. The electrical control assembly 4 is isolated by a sealed box 8 and an indoor unit mounting plate 9, which prevents rainwater from directly splashing onto the drive unit 41, the outdoor unit control unit 42, and the indoor unit control unit. Unit 43; In addition, the enclosure 8 and the indoor unit mounting plate 9 are set at right angles, which can reduce the space occupied by the electronic control component 4 in the second mounting cavity 13 and make the layout in the second mounting cavity 13 more compact; Furthermore, placing the electronic control component 4 above the compressor component 5 can prevent the electronic control component 4 from the refrigerant settling at the bottom of the second mounting cavity 13, and the enclosure 8 can improve the isolation performance of the electronic control component 4, prevent the refrigerant from directly attacking the components on the electronic control component 4, and improve the safety of the electronic control component 4 during use.

[0032] In actual use, the compressor assembly 5 is connected to the condenser 3 through the hydraulic module assembly 6 to realize the refrigeration cycle. The electronic expansion valve 7 is used to regulate the amount of refrigerant delivered, while the fan assembly 2 dissipates heat from the condenser 3 to ensure the normal operation of the outdoor unit of the air conditioner. The electrical control assembly 4 is electrically connected to the compressor assembly 5, the hydraulic module assembly 6 and the fan assembly 2 respectively to control and adjust the working status of the outdoor unit of the air conditioner.

[0033] It should be noted that the drive unit 41, the outdoor unit control unit 42, and the indoor unit control unit 43 are all control modules in existing air conditioner outdoor units. All three are used to control the working conditions of the air conditioner outdoor unit. The specific circuit structure and working principle are existing technologies and will not be described in detail here.

[0034] It should be noted that the hydraulic module assembly 6 is an existing hydraulic module assembly structure consisting of a water pump, a hydraulic module section, and pipelines. The hydraulic module section consists of components such as switching valves and management components, and is used to realize the circulation of refrigerant liquid. The specific structure and working principle are existing technologies and will not be described in detail here.

[0035] like Figures 1 to 9 As shown, the enclosed box 8 further includes a box body 81, an upper cover 82, and a first sealing sponge part 83. The box body 81 is provided with a first mounting position 811 and a second mounting position 812. The horizontal height of the second mounting position 812 is higher than that of the first mounting position 811. The drive unit 41 and the outdoor unit control unit 42 are sequentially installed in the first mounting position 811 and the second mounting position 812. The upper cover 82 and the first sealing sponge part 83 are sequentially arranged from top to bottom on the top of the box body 81. One side of the box body 81 is connected to the top of the middle partition 11, and the indoor unit mounting plate 9 is snap-fitted to one side of the box body 81.

[0036] In this embodiment, since there is a high-low voltage difference between the drive unit 41 and the outdoor unit control unit 42, electrical isolation between the drive unit 41 and the outdoor unit control unit 42 is achieved by setting a first mounting position 811 and a second mounting position 812 with a height difference, thus avoiding electromagnetic interference between the two. In addition, by setting an upper cover 82 and a first sealing sponge part 83, the airtightness of the first mounting position 811 and the second mounting position 812 can be further improved, which can not only shield external electromagnetic interference, but also prevent refrigerant or rainwater from entering the box 81.

[0037] In this embodiment, a hook (not shown in the figure) is provided on one side of the box body 81, and a groove (not shown in the figure) is provided on the indoor unit mounting plate 9 to cooperate with the hook; the connection between the indoor unit mounting plate 9 and the box body 81 by the snap-fit ​​method can improve the assembly efficiency of the workers.

[0038] like Figures 1 to 9As shown, further, the bottom of the housing 81 is provided with a plurality of first heat dissipation slots 813 communicating with the first mounting position 811, and the side of the housing 81 facing the fan assembly 2 is provided with a plurality of second heat dissipation slots 814 communicating with the first mounting position 811; in this embodiment, since the drive unit 41 generates a large amount of heat, a plurality of first heat dissipation slots 813 and a plurality of second heat dissipation slots 814 are provided in the first mounting position 811 to improve the heat dissipation efficiency of the first mounting position 811.

[0039] like Figures 1 to 9 As shown, further, the housing 81 extends at least partially into the first mounting cavity 12. A first water-blocking shield 815 is provided at the bottom of the housing 81 below all the first heat dissipation slots 813, and a first heat dissipation gap (not shown in the figure) is formed between the first water-blocking shield 815 and the first heat dissipation slots 813. A second water-blocking shield 816 is provided outside the housing 81 on all the second heat dissipation slots 814, and a second heat dissipation gap (not shown in the figure) is formed between the second water-blocking shield 816 and the second heat dissipation slots 814. In this embodiment, the housing 81 extends into the first mounting cavity 12. Cavity 12 can reduce the installation area occupied by the enclosed box 8 in the second mounting cavity 13; when the fan assembly 2 is working, the fan assembly 2 will generate a certain wind force, which will cause the air in the first mounting cavity 12 to be disturbed quickly, thereby improving the heat dissipation effect of the box 81, and allowing the air to circulate into the first heat dissipation groove 813 and the second heat dissipation groove 814 to dissipate heat from the drive unit 41 and the outdoor unit control unit 42. The first water baffle 815 and the second water baffle 816 play the role of water isolation, which can stop rainwater and prevent rainwater from splashing into the box 81 from the first heat dissipation groove 813 and the second heat dissipation groove 814.

[0040] like Figures 1 to 9 As shown, the bottom of the drive unit 41 is provided with a heat sink (not shown in the figure) extending downwards, and the bottom of the housing 81 is provided with a relief groove 817 that matches the heat sink. In this embodiment, by providing the relief groove 817, the heat sink can extend into the first mounting cavity 12, and the heat sink can be quickly convected and heat exchanged by the wind force of the fan assembly 2, thereby improving the heat dissipation effect on the drive unit 41.

[0041] It should be noted that the groove shape of the relief groove 817 is adapted to the shape of the radiator, that is, the groove edge of the heat dissipation groove 817 fits against the edge of the radiator; the above arrangement can prevent rainwater from entering the box 81 through the relief groove 817.

[0042] like Figures 1 to 9As shown, further, a clearance box 16 is provided on the top of the partition plate 11, and a groove 17 matching the radiator is provided on the clearance box 16, and the top of the clearance box 16 abuts against the bottom of the box body 81; in this embodiment, by providing a clearance box 16 on the top of the partition plate 11 to partially wrap the protruding part of the radiator in the groove 17, the radiator is only exposed in the first mounting cavity 12, which further improves the isolation between the first mounting cavity 12 and the second mounting cavity 13, and prevents the fan assembly 2 from splashing rainwater or pollutants into the second mounting cavity 13; the above arrangement not only improves the heat dissipation effect of the radiator, but also further improves the isolation between the first mounting cavity 12 and the second mounting cavity 13.

[0043] like Figures 1 to 9 As shown, further, the inner side of the closed side frame 14 is provided with a second sealing sponge part 15 that abuts against the indoor unit mounting plate 9 at the periphery of the window; in this embodiment, by providing the second sealing sponge part 15 at the window position, the gap between the closed side frame 14 and the indoor unit mounting plate 9 can be sealed to prevent the refrigerant from entering the window through the gap and causing damage to the indoor unit control unit 43.

[0044] like Figures 1 to 9 As shown, further, a refrigerant monitoring unit 10 is provided on the partition plate 11 below the enclosed box 8. The refrigerant monitoring unit 10 is electrically connected to the drive unit 41, the outdoor unit control unit 42, and the indoor unit control unit 43, respectively. The refrigerant monitoring unit 10 is used to monitor the refrigerant concentration in the second mounting cavity 13. In this embodiment, the refrigerant concentration below the enclosed box 8 is monitored by the refrigerant monitoring unit 10. If the refrigerant monitoring unit 10 detects that the refrigerant concentration reaches a specified threshold, the emergency feedback control drive unit 41, outdoor unit control unit 42, and indoor unit control unit 43 will perform an emergency power-off process to avoid the electronic control component 4 from working in an environment with a high refrigerant concentration and to prevent negative impacts on the components on the electronic control component 4.

[0045] In this embodiment, the refrigerant monitoring unit 10 is an existing combustible gas sensor. Its specific structure and working principle are existing technologies and will not be described in detail here.

[0046] like Figures 1 to 9As shown, further, a fixing frame 71 is provided on the top of the hydraulic module assembly 6, and a positioning groove 714 is provided on the fixing frame 71. The electronic expansion valve 7 at least partially abuts against the positioning groove 714, and the electronic expansion valve 7 and the fixing frame 71 are connected by a strapping unit 72. In this embodiment, when installing the electronic expansion valve 7, the fixing frame 71 is pre-installed on the top of the hydraulic module assembly 6, then the electronic expansion valve 7 is snapped into the positioning groove 714, and finally the electronic expansion valve 7 is bound to the fixing frame 71 by the strapping unit 72. By setting the positioning groove 714, the contact area between the fixing frame 71 and the electronic expansion valve 7 can be effectively increased, so that the electronic expansion valve 7 can be securely fixed in the positioning groove 714, avoiding the problem of displacement of the electronic expansion valve 7 during use.

[0047] In this embodiment, the fixing frame 71 includes a fixing plate 711, a connecting plate 712 is provided on one side of the fixing plate 711, and a reinforcing plate 713 is formed by bending the end of the connecting plate 712 away from the fixing plate 711. The positioning clamping groove 714 is located between the connecting plate 712 and the reinforcing plate 713. A strap through groove 715 is provided on the connecting plate 712 along its length direction. A locking groove 716 with an outward opening is provided on the reinforcing plate 713. At least part of the body of the strap unit 72 is engaged with the locking groove 716. The above arrangement facilitates the strap unit 72 to be tied on the fixing frame 71, and the strap through groove 715 and locking groove 716 effectively prevent the strap unit 72 from loosening and shifting, thereby improving the reliability of the electronic expansion valve 7 installation.

[0048] like Figures 1 to 9 As shown, the fan assembly 2 further includes a fan motor 21, a fan wheel 22, a motor bracket 23, and an air outlet shroud 24. The fan motor 21 is mounted in the first mounting cavity 12 via the motor bracket 23. The fan wheel 22 is drivenly connected to the output end of the fan motor 21. One side of the air outlet shroud 24 is connected to the middle partition 11, and the air outlet shroud 24 is located in front of the fan wheel 22. An air guide ring 25 is provided on the inner side of the air outlet shroud 24 around the fan wheel 22. In this embodiment, the fan assembly 2 and the housing 1 are linked by the motor bracket 23 and the air outlet shroud 24, making the overall structure more integrated and thus improving the vibration reduction effect of the outdoor unit of this air conditioner.

[0049] In summary, the partition 11 divides the housing 81 into two independent installation areas, namely the first installation cavity 12 and the second installation cavity 13, effectively isolating the fan assembly 2 and the condenser 3 from the electrical control assembly 4, preventing the fan assembly 2 from splashing rainwater onto the electrical control assembly 4. The electrical control assembly 4 is isolated by the enclosed box 8 and the indoor unit mounting plate 9, which prevents rainwater from directly splashing onto the drive unit 41, the outdoor unit control unit 42, and the indoor unit control unit 43. Furthermore, the enclosed box 8 and the indoor unit mounting plate 9 are set at right angles, which reduces the space occupied by the electrical control assembly 4 in the second installation cavity 13, making the layout in the second installation cavity 13 more compact. In addition, placing the electrical control assembly 4 above the compressor assembly 5 allows the electrical control assembly 4 to avoid the refrigerant settling at the bottom of the second installation cavity 13, and the enclosed box 8 improves the isolation performance of the electrical control assembly 4, preventing the refrigerant from directly attacking the components on the electrical control assembly 4, thus improving the safety of the electrical control assembly 4 during use.

[0050] It is understood that those skilled in the art can make equivalent substitutions or modifications to the technical solution and inventive concept of the present invention, and all such substitutions or modifications should fall within the protection scope of the appended claims.

Claims

1. An outdoor unit for an air conditioner, characterized in that, The device includes a housing, within which a central partition divides the interior into a first mounting cavity and a second mounting cavity. The first mounting cavity houses a fan assembly and a condenser. The second mounting cavity houses an electronic control assembly, a compressor assembly, a hydraulic module assembly, and an electronic expansion valve. The electronic control assembly includes a drive unit, an outdoor unit control unit, and an indoor unit control unit. The drive unit and the outdoor unit control unit are mounted on top of the central partition via a sealed box. An indoor unit mounting plate is vertically mounted on one side of the sealed box, and the indoor unit control unit is located on the outer surface of the indoor unit mounting plate. A closed side frame, abutting against the indoor unit mounting plate, is provided on the outer side of the second mounting cavity. A window, corresponding to the position of the indoor unit control unit, is provided on the closed side frame, and a sealing cover is provided on the window. The compressor assembly and the hydraulic module assembly are both located below the sealed box, and the electronic expansion valve is located on top of the hydraulic module assembly. The enclosed box includes a box body, an upper cover, and a first sealing sponge portion. The box body has a first mounting position and a second mounting position, with the second mounting position being at a higher horizontal level than the first mounting position. The drive unit and the outdoor unit control unit are sequentially installed in the first and second mounting positions. The upper cover and the first sealing sponge portion are sequentially arranged from top to bottom on the top of the box body. One side of the box body is connected to the top of the middle partition, and the indoor unit mounting plate is snap-fitted to one side of the box body. The bottom of the box is provided with a plurality of first heat dissipation slots communicating with the first mounting position, and the side of the box facing the fan assembly is provided with a plurality of second heat dissipation slots communicating with the first mounting position. The box body extends at least partially into the first mounting cavity. A first water baffle is provided at the bottom of the box body below all the first heat dissipation slots, and a first heat dissipation gap is formed between the first water baffle and the first heat dissipation slots. A second water baffle is provided on the outside of all the second heat dissipation slots, and a second heat dissipation gap is formed between the second water baffle and the second heat dissipation slots. The bottom of the drive unit is provided with a heat sink that extends downwards, and the bottom of the housing is provided with a clearance groove that matches the heat sink. The top of the partition plate is provided with a clearance box, the clearance box is provided with a groove that matches the radiator, and the top of the clearance box abuts against the bottom of the box body.

2. An outdoor unit for an air conditioner according to claim 1, characterized in that, The inner side of the closed side frame, located around the opening, is provided with a second sealing sponge portion that abuts against the indoor unit mounting plate.

3. An outdoor unit for an air conditioner according to claim 1, characterized in that, A refrigerant monitoring unit is disposed on the partition plate below the enclosed box. The refrigerant monitoring unit is electrically connected to the drive unit, the outdoor unit control unit, and the indoor unit control unit. The refrigerant monitoring unit is used to monitor the refrigerant concentration in the second mounting cavity.

4. An outdoor unit for an air conditioner according to claim 1, characterized in that, The top of the hydraulic module assembly is provided with a fixing frame, and the fixing frame is provided with a positioning groove. The electronic expansion valve at least partially abuts against the positioning groove, and the electronic expansion valve and the fixing frame are connected by a strap unit.

5. An outdoor unit for an air conditioner according to claim 1, characterized in that, The fan assembly includes a fan motor, a fan wheel, a motor bracket, and an air outlet shroud. The fan motor is mounted in the first mounting cavity via the motor bracket. The fan wheel is driven to the output end of the fan motor. One side of the air outlet shroud is connected to the middle partition plate, and the air outlet shroud is located in front of the fan wheel. An air guide ring is provided on the inner side of the air outlet shroud around the fan wheel.

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