Air conditioner outdoor unit and heating and ventilation system

Abstract

The utility model discloses an air conditioner outdoor unit and a heating and ventilation system, and relates to the technical field of heating and ventilation systems.The air conditioner outdoor unit comprises a machine shell, a compressor and a control assembly; the machine shell comprises a shell body, a middle partition plate and a mounting support, the middle partition plate and the mounting support are connected with the shell body, the space in the shell body is divided into a fan cavity and a compressor cavity through the middle partition plate, the mounting support is arranged in the compressor cavity, and the mounting support and the middle partition plate are arranged in a spaced mode. The compressor is arranged in the compressor cavity and located between the mounting support and the middle partition plate. The control assembly comprises a first electric control board and a second electric control board, the first electric control board is arranged on the middle partition plate, and the second electric control board is arranged on the mounting support. According to the technical scheme, the internal mounting structure of the air conditioner outdoor unit can be simplified.

Description

Technical Field

[0001] The present application relates to the technical field of HVAC systems, and in particular to an air-conditioning outdoor unit and a HVAC system. Background Art

[0002] In the HVAC system, the electric control system of the outdoor unit of the HVAC system includes the main control board and the module board. When the main control board and the module board are too close, they may interfere with each other and affect each other's normal operation. This interference may cause signal distortion, data errors or system performance degradation. In addition, the main control board and the module board will generate a certain amount of heat when working. If the distance is too close, thermal coupling problems may occur, causing the overall temperature to rise, which can easily affect the working stability and service life of electronic components.

[0003] In the prior art, an electric control box is usually used to plan the installation positions of the main control board and the module board to ensure the electrical connection between them. However, this installation method causes a large number of parts inside the outdoor unit, which makes the assembly complicated and increases the cost. Utility Model Content

[0004] The embodiments of the present application provide an air-conditioning outdoor unit and a HVAC system, which can simplify the internal installation structure of the air-conditioning outdoor unit.

[0005] In the first aspect, an embodiment of the present application provides an air-conditioning outdoor unit, which includes a casing, a compressor and a control component; the casing includes a shell and a middle partition and a mounting bracket connected to the shell, the middle partition divides the space in the shell into a fan chamber and a compressor chamber, and the mounting bracket is arranged in the compressor chamber and spaced from the middle partition; the compressor is arranged in the compressor chamber and is located between the mounting bracket and the middle partition; the control component includes a first electric control board and a second electric control board, the first electric control board is arranged on the middle partition, and the second electric control board is arranged on the mounting bracket.

[0006] In some embodiments, the first electric control board and the second electric control board are both disposed above the compressor.

[0007] In some embodiments, the first electric control board is a module board and the second electric control board is a main control board.

[0008] In some embodiments, the mounting bracket includes a support plate and a mounting plate, the support plate is connected to the bottom of the shell and extends upward, the mounting plate is detachably connected to the upper end of the support plate and fixedly connected to the upper part of the shell; the second electronic control board is fixed on the mounting plate.

[0009] In some embodiments, one end of the cross beam is connected to the middle partition plate, and the other end is connected to the mounting plate.

[0010] In some embodiments, the cross beams include at least two cross beams, and the cross beams are spaced apart in a height direction of the shell.

[0011] In some of the embodiments, an economizer connected to the compressor is further included, and the economizer is fixed on the support plate.

[0012] In some of the embodiments, it also includes a valve mounting beam and a valve body connected to the compressor, the valve mounting beam is located on the side of the compressor facing away from the middle partition, one end of the valve mounting beam is connected to the support plate, and the other end is connected to the shell; the valve body is fixed on the valve mounting beam.

[0013] In some embodiments, the mounting plate includes a mounting portion and two fixing portions, the two fixing portions are respectively connected to opposite sides of the mounting portion and both extend toward one side of the fixing portion, at least one of the fixing portions is fixedly connected to the shell; the second electronic control board is fixed on the mounting portion.

[0014] In some embodiments, the support plate includes a main body, a supporting portion and a locking portion, the main body is fixedly connected to the bottom of the shell, the supporting portion is connected to the upper end of the main body to form a horizontally arranged supporting surface, and the locking portion is connected to the periphery of the supporting portion; wherein the lower end surface of the mounting portion is supported on the supporting surface, the lower end surface of the fixing portion is supported on the supporting surface, and the fixing portion and the locking portion are detachably connected via a connecting piece.

[0015] In some of the embodiments, a filter plate and a wiring board are also included, and the filter plate and the wiring board are also fixed on the mounting portion.

[0016] In a second aspect, an embodiment of the present application provides a HVAC system, which includes an air-conditioning indoor unit and an air-conditioning outdoor unit as described in any one of the above items, wherein the air-conditioning outdoor unit and the air-conditioning indoor unit form a circulation flow path.

[0017] Based on the air-conditioning outdoor unit of the embodiment of the present application, the casing includes a shell and a middle partition and a mounting bracket connected to the shell. The casing serves as a basic component of the air-conditioning outdoor unit and plays a role in supporting and protecting other components of the air-conditioning outdoor unit. It has high structural strength and corrosion resistance and is suitable for complex outdoor environments that are open for a long time.

[0018] The mounting bracket is arranged in the compressor cavity and is spaced apart from the middle partition, and the compressor is arranged in the compressor cavity and is located between the mounting bracket and the middle partition. The control assembly includes a first electric control board and a second electric control board, the first electric control board is arranged on the middle partition, and the second electric control board is arranged on the mounting bracket, so that the first electric control board and the second electric control board are arranged relatively spaced apart.

[0019] Compared with the integrated installation method of the prior art, there is no need to use an electric control box to integrate the first electric control board and the second electric control board, which saves space for installing the electric control box, makes the installation structure inside the air-conditioning outdoor unit simple, and the settings of the first electric control board and the second electric control board can be adaptively adjusted according to the specific form of the internal components of the air-conditioning outdoor unit, with strong compatibility and low cost. At the same time, it can also avoid signal interference between the two caused by the close distance between the two, avoid concentrated heat, and reduce heat dissipation pressure.

[0020] The first electric control board is arranged on the middle partition so that part of it is located in the fan cavity and part of it is located in the compressor cavity. Therefore, when the fan in the fan cavity is working, it can also dissipate heat for the first electric control board, and it is also convenient to electrically connect with the second electric control board arranged on the mounting bracket. The wiring is short, which facilitates wiring and saves costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0022] Figure 1 This is a structural schematic diagram of an embodiment of an air-conditioning outdoor unit of the present application;

[0023] Figure 2 for Figure 1 An exploded view of an air conditioner outdoor unit is shown in FIG.

[0024] Figure 3 for Figure 1 Schematic diagram of the internal structure of the air conditioner outdoor unit shown in;

[0025] Figure 4 for Figure 3 A structural schematic diagram showing the mounting bracket and the second electric control board in an assembled state;

[0026] Figure 5 for Figure 3 Schematic diagram of the structure of the support plate shown in FIG.

[0027] Description of Figure Numbers:

[0028] 1. Air conditioner outdoor unit; 10. Casing; 11. Shell; 111. Chassis; 1111. Support foot; 112. Upper shell; 1121. Top cover; 1122. Front panel; 1123. Side panel; 12. Middle partition; 13. Mounting bracket; 131. Support plate; 1311. Main body; 1312. Support part; 1313. Locking part; 1314. Support surface; 132. Mounting plate; 1321. Mounting part; 1322. Fixing part; 14. Fan cavity; 15. Compressor cavity; 20. Compressor; 30. Control assembly; 31. First electric control board; 32. Second electric control board; 321. Filter board; 322. Terminal board; 323. Main board; 40. Crossbeam; 50. Economizer; 60. Valve mounting beam; 61. Valve body; 70. Outdoor heat exchanger;

[0029] X, first direction; Y, second direction; Z, height direction.

[0030] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0031] In order to make the objectives, technical solutions and advantages of the present application clearer, the following part will further describe the embodiments of the present application in detail in conjunction with the accompanying drawings.

[0032] When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Instead, they are only examples of devices and methods consistent with some aspects of the present application as detailed in the attached claims.

[0033] In the description of the present application, it should be understood that the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances. In addition, in the description of the present application, unless otherwise specified, "multiple" refers to two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the objects associated before and after are in an "or" relationship.

[0034] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used in this specification are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0035] In the HVAC system, the electric control system of the outdoor unit of the HVAC system includes the main control board and the module board. When the main control board and the module board are too close, they may interfere with each other and affect each other's normal operation. This interference may cause signal distortion, data errors or system performance degradation. In addition, the main control board and the module board will generate a certain amount of heat when working. If the distance is too close, thermal coupling problems may occur, causing the overall temperature to rise, which can easily affect the working stability and service life of electronic components.

[0036] In the prior art, an integrated electric control box is usually used to plan the installation positions of the main control board and the module board to ensure the electrical connection between them. However, this installation method causes the outdoor unit to have more parts and components, which makes the assembly complicated and increases the cost.

[0037] In order to solve the above problems, the present application proposes a HVAC system, which includes but is not limited to air conditioners, multi-split units, heat pumps, swimming pool units, water heaters and other equipment. Taking a HVAC system in which the heating medium is a refrigerant and the heating object is water as an example, the HVAC system includes an air conditioner indoor unit and an air conditioner outdoor unit, and the air conditioner outdoor unit and the air conditioner indoor unit form a circulation flow path.

[0038] Specifically, the indoor unit of the air conditioner may include components such as a heat exchanger, a water pump, an electric heating device, and an energy storage water tank, which are connected by water pipes to form a water circulation flow path. The heat exchanger has two inlets and two outlets, one set of interconnected inlets and outlets for the refrigerant to pass through, and the other set of interconnected inlets and outlets for the water medium to pass through. When the water medium flows through the heat exchanger, the refrigerant in the heat exchanger contacts the water, thereby heating and raising the temperature of the water. The water pump provides power for the circulation of water. The electric heating device can reheat the water heated by the heat exchanger and transport it to the energy storage water tank through a water pipe, thereby meeting the heating needs of the user.

[0039] The outdoor unit of the air conditioner may include components such as a fan, an evaporator, a compressor, an outdoor heat exchanger, and an expansion valve, which are connected in a loop in sequence through a refrigerant pipe. When the HVAC equipment is working, the refrigerant in the evaporator absorbs the heat in the air and becomes a high-temperature, low-pressure gas; then the high-temperature gas is compressed by the compressor, so that the refrigerant forms a high-temperature, high-pressure liquid; the high-temperature, high-pressure liquid exchanges heat with the water in the water circulation flow path through the heat exchanger, so that the water temperature in the water circulation flow path increases, and the refrigerant becomes a low-temperature, high-pressure liquid; the low-temperature, high-pressure liquid is converted into a low-temperature, low-pressure gas through the expansion valve, and then circulates to the evaporator again, thus completing the refrigerant circulation process.

[0040] Please refer to Figures 1 to 3 In the embodiment of the present application, the air-conditioning outdoor unit 1 includes a casing 10, a compressor 20 and a control component 30. Figure 1 The partial structure of the air conditioner outdoor unit 1 is shown. In the following description, Figure 1 The coordinate system in , defines the first direction X, the second direction Y and the height direction Z. It can be understood that when the air-conditioning outdoor unit 1 is installed, its left and right direction is the first direction X, its front and back direction is the second direction Y, and the first direction X, the second direction Y and the height direction Z are arranged perpendicular to each other.

[0041] The casing 10 is a basic component of the air-conditioning outdoor unit 1, and plays the role of bearing and protecting other components of the air-conditioning outdoor unit 1. Therefore, the casing 10 can be made of materials such as aluminum alloy plates, galvanized plates or stainless steel plates. This makes the casing 10 have high structural strength and corrosion resistance, and is suitable for being in a complex outdoor environment for a long time.

[0042] The casing 10 includes a shell 11 and a middle partition 12 and a mounting bracket 13 connected to the shell 11. The middle partition 12 divides the space inside the shell 11 into a fan chamber 14 and a compressor chamber 15. The air conditioner outdoor unit 1 also includes a fan (not shown in the figure), which is arranged in the fan chamber 14, and the compressor 20 is arranged in the compressor chamber 15.

[0043] The outer contour of the housing 11 may be roughly in the shape of a rectangular parallelepiped. The housing 11 includes a chassis 111 and an upper housing 112. A support foot 1111 is fixedly connected to the lower end of the chassis 111, and the support foot 1111 is used to support the air-conditioning outdoor unit 1 on the ground, or to support it on a wall or the ground through a bracket (not shown in the figure), so as to achieve stable installation of the air-conditioning outdoor unit 1. The upper housing 112 includes a top cover 1121, a front panel 1122, two side panels 1123, etc. The two side panels 1123 are arranged at intervals in the first direction X, defining the outline of the upper shell 112 in the first direction X; the front panel 1122 is arranged at the front end of the two side panels 1123 along the second direction Y, the top cover 1121 is generally arranged above the two side panels 1123 and the front panel 1122, and extends along the second direction Y, and the top cover 1121 is connected to the two side panels 1123 on both sides along the first direction X; in this way, the top cover 1121, the two side panels 1123 and the front panel 1122 are spliced ​​to form the upper shell 112. It can be understood that in order to improve the air intake efficiency of the air conditioner outdoor unit 1, thereby improving the heat exchange efficiency, the side panels 1123 can be designed as a grille form, so that air circulation can be facilitated. The upper shell 112 is installed on the chassis 111 and wrapped along the periphery of the chassis 111, so that the upper shell 112 and the chassis 111 are surrounded to form a receiving cavity (not shown in the figure).

[0044] The middle partition 12 can be made of a material with high resistance strength and good thermal conductivity, such as an aluminum alloy plate, a galvanized plate or a stainless steel plate. It is understandable that the middle partition 12 can be arranged in the shell 11 in a detachable manner such as a snap connection or a buckle connection with the shell 11 to facilitate disassembly and assembly, and of course, it can also be a fixed connection such as a screw connection to improve the stability of the middle partition 12. To further stabilize the middle partition 12, the middle partition 12 and the shell 11 can also be an integrally formed profile structure, and this application does not limit this.

[0045] The mounting bracket 13 is disposed in the compressor cavity 15 and is spaced apart from the middle partition 12. The compressor 20 is disposed in the compressor cavity 15 and is located between the mounting bracket 13 and the middle partition 12. The control assembly 30 includes a first electric control board 31 and a second electric control board 32. The first electric control board 31 is disposed on the middle partition 12, and the second electric control board 32 is disposed on the mounting bracket 13. In this way, the first electric control board 31 and the second electric control board 32 are spaced apart from each other.

[0046] Compared with the integrated installation method of the prior art, there is no need to use an electric control box to integrate the first electric control board 31 and the second electric control board 32, which saves space for installing the electric control box, making the installation structure inside the air-conditioning outdoor unit 1 simple, and the settings of the first electric control board 31 and the second electric control board 32 can be adaptively adjusted according to the specific form of the internal components of the air-conditioning outdoor unit 1, with strong compatibility and low cost. At the same time, it can also avoid signal interference between the two caused by the close distance between the two, avoid concentrated heat, and reduce heat dissipation pressure.

[0047] The first electric control board 31 is arranged on the middle partition 12, so that part of it is located in the fan cavity 14 and part of it is located in the compressor cavity 15. Therefore, when the fan in the fan cavity 14 is in operation, the first electric control board 31 can also be cooled, and it is also convenient to be electrically connected with the second electric control board 32 arranged on the mounting bracket 13. The wiring is short, the wiring is convenient, and the cost is saved.

[0048] Furthermore, the first electric control board 31 and the second electric control board 32 are both arranged above the compressor 20, so that the compressor 20 in the compressor cavity 15 can be effectively avoided, which is convenient for installation and does not hinder the installation of the compressor 20. After the compressor 20 is installed in the compressor cavity 15, the remaining space above the compressor 20 can be reasonably utilized, thereby effectively improving the space utilization rate. Moreover, because it is far away from the compressor 20, the vibration influence of the compressor 20 during operation can also be reduced.

[0049] Please refer to Figure 3 to Figure 4 In some embodiments, the mounting bracket 13 includes a support plate 131 and a mounting plate 132. The support plate 131 is connected to the bottom of the housing 11 and extends upward, that is, the support plate 131 is extended along the height direction Z. In the embodiment of the present application, the support plate 131 and the mounting plate 132 are made into separate structures, which can facilitate the processing and forming of the support plate 131 and the mounting plate 132.

[0050] The support plate 131 can be made by hot pressing, stamping, injection molding, etc., and can be made of metal or plastic materials, but the present application is not limited thereto. The mounting plate 132 is detachably connected to the upper end of the support plate 131 and fixedly connected to the upper part of the housing 11, so that the support plate 131, the mounting plate 132 and the housing 11 can be connected and fixed to each other, thereby improving the stability of the overall structure of the mounting bracket 13 and facilitating the installation of the mounting bracket 13.

[0051] The second electronic control board 32 is fixed on the mounting plate 132. Specifically, the mounting plate 132 includes a mounting portion 1321 and two fixing portions 1322. The two fixing portions 1322 are respectively connected to opposite sides of the mounting portion 1321 and both extend toward one side of the fixing portion 1322. At least one fixing portion 1322 is fixedly connected to the housing 11, and the second electronic control board 32 is fixed on the mounting portion 1321.

[0052] In a specific embodiment of the present application, the two fixing portions 1322 extend toward the side of the mounting portion 1321背离 the middle partition 12 to avoid the installation position of the compressor 20. Moreover, the mounting portion 1321 and the fixing portions 1322 are perpendicularly arranged, so that a larger installation space can be provided for the compressor 20 installed between the middle partition 12 and the mounting bracket 13. At this time, the mounting portion 1321 extends along the second direction Y, and the two fixing portions 1322 extend along the first direction X. Then, the mounting portion 1321 and the two fixing portions 1322 form an approximate "Ji" - shaped structure. In this way, when performing the installation operation, the extended ends of the two fixing portions 1322 can be placed on the working platform, or the sides of the two fixing portions 1322 connected to the mounting portion 1321 can be placed on the working platform, so that the mounting plate 132 can be independently supported and placed. At this time, the second electronic control board 32 is installed on the mounting plate 132, and screws are tightened on the back of the mounting plate 132 where the second electronic control board 32 is installed, making the installation operation efficient and fast, and saving the installation cost.

[0053] Of course, the two fixing portions 1322 can also extend toward the side of the mounting portion 1321 adjacent to the partition, and the effect of the above - mentioned "Ji" - shaped structure can also be achieved. Moreover, the space above the compressor 20 can be further utilized, and space can be saved on the side of the housing 11 where the mounting plate 132 is provided, facilitating the planning and arrangement of other components.

[0054] As Figure 4 and Figure 5 shown, the support plate 131 includes a main body portion 1311, a support portion 1312, and a locking portion 1313. The main body portion 1311 is fixedly connected to the bottom of the housing 11. The support portion 1312 is connected to the upper end of the main body portion 1311 and forms a horizontally arranged support surface 1314. The locking portion 1313 is connected to the periphery of the support portion 1312. Among them, the lower end surface of the mounting portion 1321 is supported on the support surface 1314, and the lower end surface of the fixing portion 1322 is supported on the support surface 1314. And the fixing portion 1322 and the locking portion 1313 are detachably connected by a connecting member, specifically, it can be in the form of screw attachment, etc., to ensure the connection strength, and the two are detachably connected, which is convenient for the separate processing and manufacturing of the support plate 131 and the mounting plate 132, and is also convenient for assembly and maintenance.

[0055] It should be noted that there is an unclear expression "背离" in the original text. I have translated it as "背离" for now. If there is a more accurate word, it can be adjusted accordingly.It can be understood that the support plate 131 can be one and is arranged at any position in the second direction Y. Exemplarily, the support plate 131 is arranged on the front side of the shell 11, and the locking portion 1313 is connected to the front panel 1122 to fix the mounting plate 132 to the front panel 1122, so as to facilitate the connection and fixation with the fixing portion 1322, thereby reducing the production and installation costs while ensuring support; there can also be two support plates 131, and the two support plates 131 are arranged relatively spaced in the second direction Y, and one of the support plates 131 can be connected to the front panel 1122, and the other support plate 131 is connected to the back side of the shell 11, and can be integrally formed with the shell 11, or can be in a detachable connection, thereby further ensuring the supporting strength of the support plate 131.

[0056] In some embodiments, the first electric control board 31 is a module board, which can be an integrated module board with functional modules such as inductance, compressor 20 drive, fan drive and capacitor, and is used to control the operation of components such as compressor 20 and fan. The second electric control board 32 is a main control board, which controls the module board by sensing, computing, etc., and then realizes the control of the air conditioner outdoor unit 1.

[0057] The air conditioner outdoor unit 1 further includes a main board 323 , a filter board 321 and a wiring board 322 , and the main board 323 , the filter board 321 and the wiring board 322 are also fixed on the mounting portion 1321 .

[0058] It should be noted that the mainboard 323 is mainly responsible for monitoring, controlling and managing the entire electric control system. For example, the mainboard 323 can monitor various parameters in the system, such as temperature, humidity, pressure, speed, etc., through external sensors, detectors and other devices to obtain real-time data. Based on the monitored data, the mainboard 323 will control and adjust various components of the system, such as starting or stopping the motor, adjusting the valve opening, controlling the temperature, etc., to achieve automatic operation and stability control of the system. The mainboard 323 is arranged on the mounting portion 1321, which can be away from the compressor 20 to reduce the impact of the compressor 20 on the mainboard 323 during operation.

[0059] The filter board 321 is mainly used to ensure the stability and reliability of the electric control system. For example, the filter board 321 can filter the power supply signal in the electric control system through the filter circuit to remove the high-frequency noise and interference therein to ensure the stability and purity of the power supply signal. It can also effectively suppress the influence of electromagnetic interference and power supply fluctuation on the electric control system, provide a stable power supply environment, and reduce interference with other electronic components. The filter board 321 is arranged on the mounting portion 1321, which can reduce the electromagnetic interference caused by the filter board 321 to the module board when it is working.

[0060] The terminal block 322 is used to provide a safe and reliable connection point. The terminal block 322 is arranged on the mounting portion 1321 to facilitate the electrical connection between the filter board 321, the module board and the main board 323, and also facilitates their electrical connection with external devices.

[0061] It can be understood that the main board 323, the filter board 321 and the terminal board 322 can be arranged on the same side of the installation portion 1321, that is, the three can be arranged together toward or away from the middle partition 12 to facilitate installation; the main board 323 and the filter board 321 can also be arranged toward the middle partition 12, while the terminal board 322 is arranged away from the middle partition 12, so as to adapt to different wiring forms of the module board and the main control board, while taking into account the electrical connection of the terminal board 322 with the outside on the side of the shell 11.

[0062] Please refer again Figure 2 and Figure 3 The air-conditioning outdoor unit 1 further includes an economizer 50 and an outdoor heat exchanger 70 connected to the compressor 20. The compressor 20, the economizer 50 and the outdoor heat exchanger 70 together constitute a refrigerant circulation flow path.

[0063] The outdoor heat exchanger 70 is installed in the housing 11 and is arranged opposite to the air inlet of the air-conditioning outdoor unit 1. It can be understood that the HVAC system of the present application can perform a cooling or heating process. When cooling, the outdoor heat exchanger 70 is a condenser, and when heating, the outdoor heat exchanger 70 is an evaporator. When the working mode of the air-conditioning outdoor unit 1 is in the refrigeration cycle, the compressor 20 compresses the refrigerant gas in a high-temperature and high-pressure state and discharges the compressed refrigerant gas. The discharged refrigerant gas flows into the outdoor heat exchanger 70, and the outdoor heat exchanger 70 condenses the compressed refrigerant into a liquid phase, and the heat is released to the surrounding environment through the condensation process.

[0064] The economizer 50 is installed on the side of the compressor 20 and can be a plate heat exchanger. The compressor 20 includes an air intake port and an air exhaust port. The air exhaust port is connected to the condenser, the air intake port is connected to the evaporator, and the condenser is connected to the economizer 50. The economizer 50 is connected to the evaporator, and the low-temperature and low-pressure gaseous refrigerant evaporated by the evaporator enters the compressor 20 from the air intake port; the compressor 20 adjusts the refrigerant flow entering the air intake port of the compressor 20 by adjusting the frequency and the opening of the inlet guide vane. After the low-temperature and low-pressure gaseous refrigerant enters the compressor 20, it is compressed by the first-stage impeller, mixed with the medium-temperature and medium-pressure saturated gas from the economizer 50, and then continues to be compressed by the second-stage impeller to become a high-temperature and high-pressure gaseous refrigerant; the high-temperature and high-pressure gaseous refrigerant then enters the condenser, is cooled by the cooling water in the condenser, and is phase-changed into a high-temperature and high-pressure liquid refrigerant. The high-temperature and high-pressure liquid refrigerant enters the economizer 50 after being reduced in pressure, and is separated into a saturated liquid refrigerant and a gaseous refrigerant at a medium temperature and pressure in the economizer 50; the medium-pressure gaseous refrigerant enters the secondary impeller of the compressor 20 through the air supply pipeline, and is further compressed by the secondary impeller of the compressor 20; the medium-pressure saturated liquid refrigerant enters the evaporator after being reduced in pressure, and becomes a low-temperature and low-pressure liquid refrigerant, forming a main cycle.

[0065] Of course, the economizer 50 can also be a shell and tube heat exchanger, a flash evaporator, or other structural forms, and the present application does not limit the structural form of the economizer 50. The economizer 50 is fixed on the support plate 131 and is arranged on the side of the support plate 131 away from the front panel 1122 to ensure support and facilitate pipe connection with the compressor 20 and the outdoor heat exchanger 70.

[0066] In some embodiments, the air-conditioning outdoor unit 1 also includes a valve mounting beam 60 and a valve body 61 connected to the compressor 20. The valve mounting beam 60 is located on the side of the compressor 20 that is away from the middle partition 12. One end of the valve mounting beam 60 is connected to the support plate 131, and the other end is connected to the shell 11. The valve body 61 is fixed on the valve mounting beam 60. While ensuring the connection stability of the valve body 61, it can also simplify the installation structure, reduce costs, and facilitate the layout of pipelines.

[0067] In some embodiments, the air conditioner outdoor unit 1 further includes a crossbeam 40, which is disposed in the housing 10, one end of which is connected to the middle partition 12, and the other end of which is connected to the mounting plate 132. The crossbeam 40 includes at least two crossbeams 40, which are arranged at intervals in the height direction Z of the housing 11, and the length direction thereof is consistent with the first direction X, so as to structurally tighten and support the middle partition 12 and the mounting plate 132 in the first direction X, improve the connection stability of the mounting plate 132, and ensure that the second electric control board 32 thereon can operate stably.

[0068] The same or similar numbers in the drawings of this embodiment correspond to the same or similar parts; in the description of this application, it should be understood that if the terms "up", "down", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, it is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limitations on this application. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0069] The above are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. An air conditioner outdoor unit, characterized in that: include: The casing comprises a shell, a middle partition plate connected to the shell, and a mounting bracket, wherein the middle partition plate divides the space in the shell into a fan chamber and a compressor chamber, and the mounting bracket is arranged in the compressor chamber and spaced from the middle partition plate; A compressor, disposed in the compressor cavity and located between the mounting bracket and the middle partition; as well as The control assembly comprises a first electric control board and a second electric control board, wherein the first electric control board is arranged on the middle partition board, and the second electric control board is arranged on the mounting bracket.

2. The air conditioner outdoor unit according to claim 1, characterized in that: The first electric control board and the second electric control board are both arranged above the compressor.

3. The air conditioner outdoor unit according to claim 1, characterized in that: The first electric control board is a module board and the second electric control board is a main control board.

4. The air conditioner outdoor unit according to any one of claims 1 to 3, characterized in that: The mounting bracket includes a support plate and a mounting plate, wherein the support plate is connected to the bottom of the housing and extends upward, and the mounting plate is detachably connected to the upper end of the support plate and fixedly connected to the upper portion of the housing; The second electric control board is fixed on the mounting plate.

5. The air conditioner outdoor unit according to claim 4, characterized in that: It also includes a crossbeam, one end of which is connected to the middle partition plate, and the other end of which is connected to the mounting plate.

6. The air conditioner outdoor unit according to claim 5, characterized in that: The cross beams include at least two cross beams, and the cross beams are arranged at intervals in the height direction of the shell.

7. The air conditioner outdoor unit according to claim 4, characterized in that: The economizer is connected to the compressor and is fixed on the support plate.

8. The air conditioner outdoor unit according to claim 4, characterized in that: It also includes a valve mounting beam and a valve body connected to the compressor, wherein the valve mounting beam is located on a side of the compressor facing away from the middle partition, one end of the valve mounting beam is connected to the support plate, and the other end is connected to the shell; The valve body is fixed on the valve mounting beam.

9. The air conditioner outdoor unit according to claim 4, characterized in that: The mounting plate comprises a mounting portion and two fixing portions, wherein the two fixing portions are respectively connected to opposite sides of the mounting portion and both extend toward one side of the fixing portion, and at least one of the fixing portions is fixedly connected to the housing; The second electric control board is fixed on the mounting portion.

10. The air conditioner outdoor unit according to claim 9, characterized in that: The support plate includes a main body, a support part and a locking part, wherein the main body is fixedly connected to the bottom of the shell, the support part is connected to the upper end of the main body to form a horizontally arranged support surface, and the locking part is connected to the periphery of the support part; Wherein, the lower end surface of the mounting portion is supported on the supporting surface, the lower end surface of the fixing portion is supported on the supporting surface, and the fixing portion and the locking portion are detachably connected via a connecting piece.

11. The air conditioner outdoor unit according to claim 9, characterized in that: It also includes a filter plate and a wiring board, and the filter plate and the wiring board are also fixed on the mounting portion.

12. A HVAC system, characterized in that: The invention comprises an air-conditioning indoor unit and an air-conditioning outdoor unit according to any one of claims 1 to 11, wherein the air-conditioning outdoor unit and the air-conditioning indoor unit form a circulation flow path.

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