Air conditioner outdoor unit

Abstract

The embodiment of the invention discloses an air conditioner outdoor unit. According to the specific implementation mode, the air conditioner outdoor unit comprises a compressor, a surrounding type heat exchanger, a flow guide plate, a fan assembly, a shell and a panel, and the compressor and the surrounding type heat exchanger are both installed in the shell; a guide plate is arranged between the compressor and the surrounding heat exchanger; the surrounding type heat exchanger is provided with at least two bending areas. The number of the surrounding type heat exchangers is at least one. When the number of the surrounding heat exchangers is more than one, each surrounding heat exchanger is provided with an electronic expansion valve; the flow guide plate is installed on one side of the surrounding type heat exchanger, and a preset included angle is formed between the flow guide plate and the surrounding type heat exchanger. The fan assembly is installed in the surrounding range of the surrounding type heat exchanger. An air guide ring is mounted on one surface of the shell; the panel covers one surface of the shell, and the surface is provided with the air guide ring; the panel is configured to be a ventilated structure. According to the embodiment, the heat exchange efficiency of the air conditioner outdoor unit can be improved through the surrounding heat exchanger.

Description

Technical Field

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

[0002] With the development of science and technology, air conditioners (air conditioners) have become more and more popular. Currently, common air conditioners consist of two parts: indoor unit and outdoor unit. Among them, the outdoor unit, as one of the core components of the air conditioning system, undertakes the key tasks of heat exchange and compression cycle. The component that realizes its heat exchange function is the heat exchanger. The commonly used heat exchanger is the L-type heat exchanger.

[0003] However, when the L-type heat exchanger is used to exchange heat, there is often a technical problem of low heat exchange efficiency.

[0004] The above information disclosed in this Background section is only for enhancement of understanding of the background of the present disclosure concept and therefore it may contain information that does not form the prior art that is already known to a person of ordinary skill in the art. Summary of the invention

[0005] The content of this disclosure is used to introduce concepts in a brief form, which will be described in detail in the detailed implementation section below. The content of this disclosure is not intended to identify the key features or essential features of the technical solution claimed for protection, nor is it intended to limit the scope of the technical solution claimed for protection.

[0006] Some embodiments of the present disclosure propose an air-conditioning outdoor unit to solve one or more of the technical problems mentioned in the above background technology section.

[0007] Some embodiments of the present disclosure provide an air-conditioning outdoor unit, which includes a compressor, a surround-type heat exchanger, a guide plate, a fan assembly, a shell and a panel, wherein the compressor and the surround-type heat exchanger are both installed inside the shell; the compressor and the surround-type heat exchanger are separated by the guide plate; the surround-type heat exchanger is provided with at least two bending areas; the number of the surround-type heat exchangers is at least one; when the number of the surround-type heat exchangers is more than one, each surround-type heat exchanger is installed with an electronic expansion valve; the guide plate is installed on one side of the surround-type heat exchanger and has a preset angle with the surround-type heat exchanger; the fan assembly is installed in the surrounding range of the surround-type heat exchanger; an air guide ring is installed on one side of the shell; the panel covers one side of the shell, wherein the one side is the side on which the air guide ring is installed; the panel is constructed into a structure capable of ventilation.

[0008] Optionally, the air conditioner outdoor unit further includes a partition plate; the partition plate is connected to the edge of the surround heat exchanger.

[0009] Optionally, the guide plate and the partition plate divide the interior of the shell into a heat exchange chamber and a compressor chamber; the surround heat exchanger and the fan assembly are both installed in the heat exchange chamber; and the compressor is installed in the compressor chamber.

[0010] Optionally, the shell further includes a side panel; the side panel is provided with an air window; and the number of the air window is at least one.

[0011] Optionally, the fan assembly includes a fan, a motor and a bracket; the fan is mounted on the motor; and the motor is mounted on the bracket.

[0012] Optionally, the air guide ring is provided with an air outlet; an extension wall is provided along the circumference of the air outlet; the extension wall faces the interior of the shell; a wind gathering structure is provided on the extension wall, and the wind gathering structure expands in all directions.

[0013] Optionally, the air guide ring is provided with a first buckle; the panel is provided with a second buckle; and the panel is connected to the air guide ring via the first buckle and the second buckle.

[0014] Optionally, at least one window is provided on the partition plate.

[0015] Optionally, the panel is configured to be mounted on the housing by snap-fitting.

[0016] Optionally, a fixing foot is provided at the bottom of the above-mentioned shell; a fixing hole is provided on the above-mentioned fixing foot; the number of the above-mentioned fixing feet is at least two, and they are respectively arranged on both sides of the above-mentioned shell; the above-mentioned fixing foot and the above-mentioned shell are an integral structure, and the above-mentioned fixing foot protrudes from the surface of the above-mentioned shell; a protruding structure is provided on the above-mentioned fixing foot, and the above-mentioned protruding structure surrounds the above-mentioned fixing hole; a soft rubber pad is also provided at the bottom end of the above-mentioned fixing foot; the area of ​​the above-mentioned soft rubber pad is larger than the bottom area of ​​the above-mentioned fixing foot; an installation seam is also provided on the above-mentioned soft rubber pad, and the above-mentioned installation seam is located below the above-mentioned fixing hole; the above-mentioned air-conditioning outdoor unit also includes a mounting bracket; the above-mentioned mounting bracket is provided with a mounting hole; the above-mentioned mounting hole matches the above-mentioned fixing hole; the above-mentioned fixing foot is constructed into a structure that can be mounted on the above-mentioned mounting bracket.

[0017] Some embodiments of the present disclosure provide an air conditioner outdoor unit, which can improve heat exchange efficiency. Specifically, the reason why most air conditioner outdoor units have low heat exchange efficiency is that most air conditioner outdoor units use L-shaped heat exchangers. However, the L-shaped heat exchanger is limited by its own heat exchange area, resulting in low heat exchange efficiency. Based on this, some embodiments of the present disclosure provide an air conditioner outdoor unit, the air conditioner outdoor unit includes a compressor, a surround heat exchanger, a guide plate, a fan assembly, a shell and a panel, wherein the compressor and the surround heat exchanger are both installed inside the shell; the compressor and the surround heat exchanger are separated by the guide plate; the surround heat exchanger is provided with at least two bending areas; the number of the surround heat exchangers is at least one; when the number of the surround heat exchangers is more than one, each surround heat exchanger is installed with an electronic expansion valve; the guide plate is installed on one side of the surround heat exchanger, and there is a preset angle between the guide plate and the surround heat exchanger; the fan assembly is installed in the surrounding range of the surround heat exchanger; an air guide ring is installed on one side of the shell; the panel covers one side of the shell, wherein the one side is the side on which the air guide ring is installed; the panel is constructed into a structure capable of ventilation. Because the surround heat exchanger has at least two bending areas, the heat exchange area is increased. Thus, the heat exchange efficiency can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and other features, advantages and aspects of the embodiments of the present disclosure will become more apparent with reference to the following detailed description in conjunction with the accompanying drawings. Throughout the accompanying drawings, the same or similar reference numerals represent the same or similar elements. It should be understood that the drawings are schematic and that components and elements are not necessarily drawn to scale.

[0019] Figure 1 It is a schematic diagram of the structure of the air-conditioning outdoor unit of some embodiments of the present disclosure in an incompletely assembled state. Figure 1 It includes a shell 1, a compressor 2, a fan assembly 3, a side panel 13, and an air window 14.

[0020] Figure 2 is a front view of an air-conditioning outdoor unit according to some embodiments of the present disclosure. Figure 2 It includes a shell 1 and a panel 4.

[0021] Figure 3 1 is a front view of an air conditioner outdoor unit without a panel installed according to some embodiments of the present disclosure. Figure 3 It includes a housing 1, a fan assembly 3, an air guide ring 5, and a first buckle 15.

[0022] Figure 4 1. It is a top view of some accessories of the air conditioner outdoor unit of some embodiments of the present disclosure. Figure 4 It includes a partition plate 6, a guide plate 7, and a surround-type heat exchanger 8.

[0023] Figure 5 It is an oblique view of some accessories of the air conditioner outdoor unit of some embodiments of the present disclosure. Figure 5 It includes a partition plate 6, a guide plate 7, and a surround heat exchanger 8. It should be noted that: Figure 5 Two wraparound heat exchangers 8 are shown, and the two wraparound heat exchangers 8 are placed in a stacked manner.

[0024] Figure 6 1 is a top view of an air-conditioning outdoor unit of some embodiments of the present disclosure in an incompletely assembled state. Figure 6 It includes a fan assembly 3, an air guide ring 5, a partition plate 6, a guide plate 7, a surround heat exchanger 8, a heat exchange chamber 9, a compressor chamber 10, a fixed foot 11, and a wind gathering structure 12.

[0025] Figure 7 It is an oblique view of another part of the accessories of the air conditioner outdoor unit of some embodiments of the present disclosure. Figure 7 It includes an air guide ring 5 , a side panel 13 , an air window 14 , and a first buckle 15 .

[0026] Figure 8 Yes Figure 1 Schematic diagram of the structure in which the A area in FIG. is enlarged. Figure 8 It includes a fixing foot 11 , a fixing hole 16 , and a protruding structure 17 .

[0027] Fig. 9 Yes Figure 1 Schematic diagram of the structure in which the B area in FIG. is enlarged. Fig. 9 It includes a partition plate 6 and a window 18 .

[0028] Fig.10 It is a flowchart of some steps that can be implemented by the main control unit of the air conditioner outdoor unit in some embodiments of the present disclosure. DETAILED DESCRIPTION

[0029] Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although certain embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be construed as being limited to the embodiments set forth herein. On the contrary, these embodiments are provided to provide a more thorough and complete understanding of the present disclosure. It should be understood that the drawings and embodiments of the present disclosure are only for exemplary purposes and are not intended to limit the scope of protection of the present disclosure.

[0030] It should also be noted that, for ease of description, only the parts related to the invention are shown in the drawings. In the absence of conflict, the embodiments and features in the embodiments of the present disclosure can be combined with each other.

[0031] It should be noted that the concepts such as "first" and "second" mentioned in the present disclosure are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence of the functions performed by these devices, modules or units.

[0032] It should be noted that the modifications of "one" and "plurality" mentioned in the present disclosure are illustrative rather than restrictive, and those skilled in the art should understand that unless otherwise clearly indicated in the context, it should be understood as "one or more".

[0033] The names of the messages or information exchanged between multiple devices in the embodiments of the present disclosure are only used for illustrative purposes and are not used to limit the scope of these messages or information.

[0034] The present disclosure will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0035] In some embodiments, the air conditioner outdoor unit may include a compressor 2, a surround heat exchanger 8, a guide plate 7, a fan assembly 3, an outer shell 1 and a panel 4. Among them, the compressor 2 plays the role of compressing and driving the refrigerant in the air conditioner refrigerant circuit and is the core component of the air conditioner. The structure of the compressor 2 may be a vertical cylindrical shape. The outer shell 1 is generally made of steel plate with a smooth surface and a relatively small volume. The surround heat exchanger 8 may be a plate-like structure with a bending area, which is installed inside the outer shell 1 of the air conditioner outdoor unit. The surround heat exchanger 8 may be a U-shaped structure or also called a C-shaped structure. The surround heat exchanger 8 may be a plate-like structure with at least two bending areas, and both bending areas are provided with an arc. Reference may be made here Figure 5. The arcs in the two bending areas are mainly to facilitate the flow of refrigerant inside the above-mentioned surround-type heat exchanger 8. The above-mentioned guide plate 7 can be a flat plate structure and can be installed between the above-mentioned compressor 2 and the above-mentioned surround-type heat exchanger 8. The above-mentioned guide plate 7 can guide the airflow so that the air flows more evenly around the above-mentioned surround-type heat exchanger 8 and the above-mentioned compressor 2. This helps to improve the heat exchange efficiency of the above-mentioned surround-type heat exchanger 8 and ensure the cooling or heating effect of the air conditioner outdoor unit. At the same time, it can also prevent the airflow from directly impacting the above-mentioned compressor 2 and reduce the vibration and noise caused by the turbulent airflow. In addition, the above-mentioned surround-type heat exchanger 8 will exchange heat when working, resulting in changes in the temperature of the surrounding air, and the above-mentioned compressor 2 will generate heat and vibration when running. Installing the above-mentioned guide plate 7 can reduce the impact of the hot air around the above-mentioned surround-type heat exchanger 8 on the above-mentioned compressor 2, and prevent the above-mentioned compressor 2 from being in an overly high temperature environment, thereby ensuring its performance and life. At the same time, the guide plate 7 can also block the vibration of the compressor 2 from being transmitted to the surround heat exchanger 8 to a certain extent, and prevent the components of the surround heat exchanger 8 from loosening or being damaged due to long-term vibration. It should be noted that in order to ensure the heat exchange efficiency of the surround heat exchanger 8, there can be a preset angle between the guide plate 7 and the surround heat exchanger 8 to avoid the situation where the guide plate 7 is close to the surround heat exchanger 8. The preset angle can be 10°~28°. This range can make the guide plate 7 play a spacing role while having a relatively small impact on the heat exchange efficiency of the surround heat exchanger 8. The specific angle value can be selected according to the actual size of the shell 1. The shell 1 can be a rectangular parallelepiped structure. When the surround heat exchanger 8 is installed in the shell 1, the air conditioner outdoor unit can exchange heat from at least three sides at the same time, which increases the heat exchange area and improves the working efficiency of the air conditioner.

[0036] In some embodiments, the number of the above-mentioned surround type heat exchanger 8 can be at least one, and when the number of the above-mentioned surround type heat exchanger 8 is more than one, each surround type heat exchanger 8 can be installed with an electronic expansion valve. In this way, each surround type heat exchanger 8 can be controlled individually, so that multiple surround type heat exchangers 8 can work alternately or in coordination, thereby improving the heat exchange efficiency of the heat exchanger and further improving the working efficiency of the air conditioner. It should be noted that when the number of the above-mentioned surround type heat exchanger 8 is more than one, the above-mentioned surround type heat exchanger 8 can be installed by stacking up and down (such as Figure 5 ).

[0037] In some embodiments, the fan assembly 3 may be a fan that can be installed inside the housing 1 and some components for installation and connection (such as brackets, screws, etc.). The function of the fan assembly 3 is as follows: when the air conditioner outdoor unit is running, the surround heat exchanger 8 needs to dissipate the internal heat to the external environment. The fan can force the air to flow quickly through the surface of the surround heat exchanger 8, take away the heat, and accelerate the heat exchange process, thereby improving the cooling or heating efficiency of the air conditioner. For example, when cooling, the fan helps to dissipate the indoor heat to the outdoor air through the surround heat exchanger 8. In order to better achieve the above effect, the fan assembly 3 can be installed in the surrounding range of the surround heat exchanger 8.

[0038] In some embodiments, in order to match the above-mentioned fan assembly 3, so that the airflow discharged by the above-mentioned fan flows more concentratedly in a specific direction, avoid the airflow from diffusing into the surrounding environment, reduce the generation of airflow turbulence and eddies, and improve the utilization efficiency of the airflow, the above-mentioned air-conditioning outdoor unit may also be installed with an air guide ring 5. The above-mentioned air guide ring 5 may be a plate-like structure with a notch in the middle. A wall structure may also be provided at the above-mentioned notch, so that the above-mentioned notch is a cylindrical structure. The above-mentioned cylindrical structure may play a role in gathering wind. In addition, the above-mentioned air guide ring 5 may also make the airflow flow smoother, reduce the collision and friction between the airflow and the external unit components, thereby reducing the noise generated by the impact of the airflow, and making the air-conditioning outdoor unit quieter during operation.

[0039] In some embodiments, the panel 4 may be a grid-shaped plate structure. The grid-shaped plate structure enables the panel 4 to have a ventilation function. The panel 4 is also like a simple filter, which can block larger debris, such as leaves, paper, insects, etc. from entering the outside unit, prevent these debris from accumulating on components such as heat exchangers and fans, affecting their normal operation, and reduce the probability of failures caused by clogging. The specific design form of the panel 4 is not limited here, as long as it can ensure the ventilation effect and protect the components inside the air conditioner outside unit.

[0040] Alternatively, if Figure 4 and Figure 5 As shown, the air conditioner outdoor unit may further include a partition plate 6. The partition plate 6 may be connected to the edge of the surround type heat exchanger 8. The partition plate 6 may be a plate-like structure with a bend. The bend is to better fit some parts on the edge of the surround type heat exchanger 8. When the number of the surround type heat exchanger 8 is more than one, the partition plate 6 may be connected to each surround type heat exchanger 8 at the same time, playing the role of connecting and fixing the surround type heat exchanger 8.

[0041] Alternatively, if Figure 6As shown, the guide plate 7 and the partition plate 6 divide the interior of the housing 1 into a heat exchange chamber 9 and a compressor chamber 10. The surround heat exchanger 8 and the fan assembly 3 can be installed in the heat exchange chamber 9. The compressor 2 can be installed in the compressor chamber 10. The surround heat exchanger 8 and the compressor 2 are installed in different chambers, making them more independent during maintenance and overhaul. Technicians can more easily access individual components for inspection, repair or replacement without worrying about affecting other components, thereby improving maintenance efficiency and reducing maintenance costs.

[0042] Alternatively, if Figure 1 and Figure 7 As shown, the housing 1 may further include a side panel 13. The side panel 13 may be a plate-like structure installed on one side of the housing 1, and a square opening may be provided thereon. The square opening is an air window 14. There may be at least one air window 14. The air window 14 can increase the air circulation area, allowing more outside air to enter the interior of the external unit to exchange heat with the surround heat exchanger 8, thereby preventing the external unit from experiencing performance degradation or failure due to overheating. Especially for an external unit installed in a relatively narrow space, the air window 14 is crucial to improving heat dissipation conditions. The air window 14 may also be in other shapes, as long as the purpose of increasing the air circulation area can be achieved.

[0043] Alternatively, if Figure 1 As shown, the fan assembly 3 may include a fan, a motor and a bracket. The fan may be mounted on the motor. The motor may be mounted on the bracket. The fan may be a structure having multiple (such as 3) blades. The motor is used to drive the fan to rotate so that the air around the surround heat exchanger 8 flows to increase the heat exchange efficiency of the surround heat exchanger 8. The bracket may be a frame structure capable of fixing the motor. The main function of the bracket is to fix the motor and the fan at appropriate positions in the housing 1. It should be noted that the fan, the motor and the bracket are not numbered in the drawings.

[0044] Alternatively, if Figure 6 As shown, the air guide ring 5 may be provided with an air outlet. The air outlet may be a circular hole arranged in the middle of the air guide ring 5. Here, the specific shape of the air outlet is not limited. An extension wall may be provided in the axial direction of the air outlet. The extension wall may face the inside of the housing 1. The extension wall refers to a raised structure extending around the air outlet toward the inside of the housing 1, so that the air outlet presents a cylindrical structure. A wind gathering structure 12 may be provided on the extension wall. The wind gathering structure 12 is a trumpet-shaped structure expanding in all directions. This is conducive to concentrating the wind generated by the fan in the air guide ring 5 and enhancing the wind outlet effect.

[0045] Alternatively, if Figure 3 and Figure 7 As shown, the air guide ring 5 may be provided with a first buckle 15. The first buckle 15 may be an L-shaped sheet structure. The panel 4 may be provided with a second buckle. The second buckle may be a groove structure matching the L-shaped sheet structure. During installation, the L-shaped sheet structure may be hooked in the groove structure to achieve the purpose of connecting the air guide ring 5 and the panel 4. It should be noted that the second buckle is not shown in the accompanying drawings.

[0046] Alternatively, if Fig. 9 As shown, at least one window 18 may be provided on the partition plate 6. The purpose of providing the window 18 is that when the air conditioner outdoor unit is working, the rotation of the fan assembly 3 will cause the side where the surround heat exchanger 8 is located to be in a negative pressure state, and the side where the compressor 2 is located to be in a positive pressure state. When the fan is running, the heat of the electric control box can be taken away through the window 18, thereby reducing the internal ambient temperature of the electric control box and effectively extending the service life of the electric control components of the air conditioner.

[0047] Optionally, the panel 4 can be configured to be mounted on the housing 1 by snapping. Different from being mounted on the air guide ring 5, the panel 4 is mounted on the housing 1, and a direct connection relationship can be established between the panel 4 and the housing 1, so that the panel 4 is mounted more firmly.

[0048] Alternatively, if Figure 8As shown, the bottom of the housing 1 may be provided with a fixing foot 11. The fixing foot 11 may be provided with a fixing hole 16. The fixing foot 11 may be a rectangular or square block structure, or may be circular or other irregular shapes according to special design or installation requirements. Its size and dimensions are designed according to the overall specifications and weight of the air conditioner outdoor unit to ensure that it can provide stable support and fixing. The number of the fixing feet 11 may be at least two, and they are respectively arranged on both sides of the housing 1. In this way, the heights of both sides of the housing 1 can be consistent. The fixing foot 11 may be an integral structure with the housing 1. The connection strength between the fixing foot 11 and the housing 1 can be guaranteed. At the same time, in order to facilitate installation and support more stably, the fixing foot 11 may protrude from the surface of the housing 1. The fixing foot 11 may be provided with a fixing hole 16. The fixing hole 16 may be a round hole or a groove. The fixing hole 16 may be for fixing accessories such as screws to pass through. The air conditioner outdoor unit may be fixed to the ground or other target positions through the fixing hole 16. The fixing foot 11 may be provided with a protruding structure 17. The protruding structure 17 can be arranged around the fixing hole 16. When a screw is installed in the fixing hole 16, the head of the screw, that is, the part with a larger diameter, can be surrounded in the middle by the protruding structure 17, so that the part used for fixing is more beautiful. In addition, since the air conditioner outdoor unit is in operation, the internal components (such as a compressor) will vibrate during operation, and the vibration is transmitted to the installation surface (such as the ground or wall) through the fixing foot 11, thereby causing noise. A soft rubber pad can also be provided at the bottom end of the fixing foot 11. The soft rubber pad can be made of natural rubber or nitrile rubber as the rubber pad material. Natural rubber has good elasticity, wear resistance and fatigue resistance, and can effectively absorb high-frequency vibrations; nitrile rubber has excellent oil resistance, corrosion resistance and anti-aging performance, and can adapt to the complex use environment of the air conditioner outdoor unit. Specifically, a suitable rubber material or rubber composite material can be selected according to the actual use scenario and the requirements for performance, which is not specifically limited here. The area of ​​the soft rubber pad can be larger than the bottom surface area of ​​the fixing foot 11. This is so that the soft rubber pad can provide stable support for the fixed foot 11 when the fixed foot 11 is installed on the target surface. At the same time, in order to facilitate installation, the soft rubber pad can also be provided with an installation seam. The installation seam can be a cross-shaped gap provided at the position below the soft rubber pad corresponding to the fixing hole 16, so that the screws used to install the fixed foot 11 can pass through the soft rubber pad. Here, the specific shape of the installation seam is not specifically limited, as long as the screw can pass through. It should be noted that the soft rubber pad and the installation seam are not shown in the accompanying drawings. The air-conditioning outdoor unit can also include a mounting bracket. The mounting bracket can be a frame structure capable of supporting the air-conditioning outdoor unit. The mounting bracket can be provided with a mounting hole. The mounting hole can match the fixing hole 16. It should be noted that the matching here means that the position corresponds and the size is the same.The mounting bracket and the mounting hole are not shown in the attached drawings. Even if they are different in size, they need to be able to accommodate the same screw. The fixing foot 11 can be mounted on the mounting bracket. The mounting bracket is used to mount the air conditioner outdoor unit on a vertical surface (such as a wall).

[0049] The above optional embodiment, as an inventive point of the embodiment of the present disclosure, solves the technical problem that "the air conditioner outdoor unit transmits vibration to the mounting surface to generate noise during operation". The factors that cause the air conditioner outdoor unit to transmit vibration to the mounting surface to generate noise during operation are as follows: when the air conditioner outdoor unit is in operation, the operation of the internal compressor, fan and other components will generate vibrations, which are transmitted to the mounting surface through the fixed feet, causing vibrations of the mounting surface, and then causing noise. If the above factors are solved, the effect of reducing the noise generated by the operation of the air conditioner outdoor unit can be achieved. In order to achieve this effect, the present disclosure further provides a structural design scheme for the fixed feet. The hard contact between the fixed feet and the mounting surface can be changed to flexible contact by a soft rubber pad. The soft rubber pad is used to absorb part of the vibration. In this way, the noise generated by the operation of the air conditioner outdoor unit is reduced.

[0050] Further references Fig.10 , Fig.10 Shown are some processes 100 that can be implemented by the main control unit of the air conditioner outdoor unit of some embodiments of the present disclosure.

[0051] The air conditioner outdoor unit may further include a temperature sensor, a solenoid valve, a clock chip and a main control unit. The temperature sensor may be a thermistor temperature sensor. The main control unit may be a single chip microcomputer. The clock chip may be connected to the main control unit in communication. The communication connection may be achieved by integrating the clock chip and the main control unit on the same circuit board. The temperature sensor and the solenoid valve may be installed on the surround heat exchanger to detect the temperature of the surround heat exchanger and control the flow direction of the refrigerant inside the surround heat exchanger. The number of the surround heat exchangers may be more than one. When the number of the surround heat exchangers is more than one, a temperature sensor and a solenoid valve may be installed on each surround heat exchanger. That is, the number of the temperature sensors and the number of the solenoid valves may be the same as the number of the surround heat exchangers. The main control unit is connected to the temperature sensor, the fan assembly and the solenoid valve in communication, respectively. When the number of the surround heat exchangers is two, the main control unit is configured to implement the following detection steps: Step 101, reading data from a temperature sensor and a clock chip according to a preset sampling period to obtain temperature data and time data.

[0052] The temperature data refers to the temperature values ​​of the two surround heat exchangers. The time data refers to the length of time the air conditioner operates in the heating mode, which is stored in the form of a numerical value. In practice, the main control unit can read the data of the temperature sensor and the clock chip once according to a certain sampling period (such as every 1 minute).

[0053] Step 102: filter the temperature data to obtain a current temperature value, wherein the current temperature value includes the temperatures of the two surround heat exchangers. The filtering process is to remove possible noise interference and make the measurement result more accurate.

[0054] In practice, the main control unit may use a sliding average filtering method to calculate the average value of temperature data collected for multiple consecutive times (such as 5 times, which may be preset manually) as the current temperature value, which may make the temperature data smoother and more stable.

[0055] Step 103, in response to obtaining the indoor temperature, judging whether the two surround heat exchangers need to be defrosted according to the current temperature value and time data, and obtaining a defrost instruction.

[0056] The indoor temperature is a value representing the indoor temperature obtained by a temperature sensor pre-installed indoors. The defrost command refers to a high and low level signal sent to the solenoid valve and the fan assembly. In practice, the main control unit can determine which of the two surround heat exchangers needs to be defrosted according to a preset judgment method. The following takes the example of determining whether one of the surround heat exchangers needs to be defrosted to explain the preset judgment method: The first step is to compare the current temperature value of the surround heat exchanger with the preset defrosting temperature threshold.

[0057] The second step is to compare the absolute value of the difference between the indoor temperature and the current temperature of the surround heat exchanger with the preset temperature difference threshold. For ease of understanding, assuming that the indoor temperature is 26, the current temperature of the surround heat exchanger is 10, and the preset temperature difference threshold is 11, this step means comparing the absolute value of 26-10=16 with 11.

[0058] The third step is to compare the above time data with the preset defrost cycle time.

[0059] The fourth step is to output a defrost instruction in response to the preset condition being met.

[0060] Among them, the above-mentioned preset conditions include the comparison results of the above-mentioned first step to the third step. The above-mentioned preset conditions can only be met when the current temperature value in the above-mentioned first step is less than the preset defrost temperature threshold, the absolute value in the above-mentioned second step is greater than the preset temperature difference threshold, and the time data in the above-mentioned third step is greater than the preset defrost cycle time.

[0061] In practice, the main control unit may integrate the comparison process of the first step to the third step into the same if statement, and the defrost instruction will be output only when the preset conditions are met.

[0062] It should be noted that the above-mentioned preset defrost temperature threshold, the above-mentioned preset temperature difference threshold and the above-mentioned preset defrost cycle time are all numerical values ​​pre-stored in the memory of the above-mentioned main control unit through manual programming.

[0063] Determining whether another surround heat exchanger needs defrosting is similar to this and will not be repeated here.

[0064] Step 104 , according to the defrost instruction, the solenoid valve is controlled to guide the refrigerant to the surround heat exchanger.

[0065] The surround heat exchanger refers to a surround heat exchanger that needs to be defrosted. The refrigerant refers to a high-temperature refrigerant flowing from the indoor unit of the air conditioner. In practice, the main control unit can transmit a high-level signal to the solenoid valve, and the solenoid valve can guide the refrigerant to the surround heat exchanger that needs to be defrosted.

[0066] Step 105 , in response to the solenoid valve directing the refrigerant to the surround heat exchanger, the fan assembly is controlled to stop working.

[0067] In practice, the main control unit may transmit a high level signal to the solenoid valve and a low level signal to the fan assembly at the same time. Through pre-configuration, the fan assembly will stop working in response to receiving the low level signal.

[0068] Step 106, reading the data of the temperature sensor at a preset frequency to obtain the defrosting process temperature.

[0069] The surround heat exchanger where the temperature sensor is installed is in a defrosting state. The defrosting process temperature refers to the temperature value detected by the temperature sensor during the defrosting process. The temperature sensor here refers to the one installed on the surround heat exchanger in the defrosting state. In practice, the main control unit can continuously read the defrosting process temperature at a preset frequency (e.g., every 30 seconds).

[0070] Step 107 , in response to the defrost process temperature exceeding the defrost threshold and lasting for a preset time, controlling the solenoid valve to guide the refrigerant to a normal flow direction.

[0071] The above-mentioned defrost threshold refers to a specific temperature. Under normal circumstances, the above-mentioned surround heat exchanger will not frost when it is at the temperature corresponding to the above-mentioned defrost threshold. The above-mentioned preset time is a value representing the length of time. The above-mentioned defrost threshold and the above-mentioned preset time are both manually programmed and stored in the memory of the above-mentioned main control unit in advance. The above-mentioned normal flow direction refers to the flow direction of the refrigerant in the heating mode of the air conditioner. In practice, the above-mentioned main control unit can determine whether the temperature of the above-mentioned surround heat exchanger rises above the preset defrost threshold (such as 0°C) and maintains the preset time (such as 5 minutes) through conditional statements. A timer can be used to realize the timing of time. When the temperature reaches the threshold, the timer is started. If the temperature remains above the threshold within 5 minutes, it can be considered that the defrost is basically completed. At this time, the above-mentioned main control unit can transmit a low-level signal to the above-mentioned solenoid valve. Through pre-configuration, the above-mentioned solenoid valve will guide the above-mentioned refrigerant to return to the above-mentioned normal flow direction.

[0072] Step 108 , in response to the solenoid valve directing the refrigerant to a normal flow direction, the fan assembly is controlled to start working.

[0073] In practice, the main control unit may transmit a low level signal to the solenoid valve and a high level signal to the fan assembly at the same time. Through pre-configuration, the fan assembly will start working in response to receiving the high level signal.

[0074] Step 109 , in response to the fan assembly starting to work, continue the detection step.

[0075] In practice, the main control unit may determine whether the fan component has received a high-level signal through a conditional statement, and then continuously perform the above detection steps in combination with a loop function.

[0076] The above steps 101 to 109, as an inventive point of an embodiment of the present disclosure, solve the technical problem of "unstable heating of the air conditioner in heating mode". The factors that lead to unstable heating of the air conditioner in heating mode are as follows: a conventional air conditioner has only one heat exchanger, and when the heat exchanger is defrosted, the indoor heating will stop. If the above factors are solved, the effect of improving the heating stability of the air conditioner in heating mode can be achieved. In order to achieve this effect, the present disclosure further provides a method for controlling two surround heat exchangers to defrost separately. The temperatures of the two surround heat exchangers can be detected separately to determine whether defrosting is required, and defrosting measures are automatically taken after determining that the surround heat exchanger needs to be defrosted. In particular, when one surround heat exchanger is defrosting, the other continues to work. Thereby, the heating stability of the air conditioner in heating mode is improved.

[0077] Some embodiments of the present disclosure provide an air conditioner outdoor unit, which can improve heat exchange efficiency. Specifically, the reason why most air conditioner outdoor units have low heat exchange efficiency is that most air conditioner outdoor units use L-shaped heat exchangers. However, the L-shaped heat exchanger is limited by its own heat exchange area, resulting in low heat exchange efficiency. Based on this, some embodiments of the present disclosure provide an air conditioner outdoor unit, the air conditioner outdoor unit includes a compressor, a surround heat exchanger, a guide plate, a fan assembly, a shell and a panel, wherein the compressor and the surround heat exchanger are both installed inside the shell; the compressor and the surround heat exchanger are separated by the guide plate; the surround heat exchanger is provided with at least two bending areas; the number of the surround heat exchangers is at least one; when the number of the surround heat exchangers is more than one, each surround heat exchanger is installed with an electronic expansion valve; the guide plate is installed on one side of the surround heat exchanger, and there is a preset angle between the guide plate and the surround heat exchanger; the fan assembly is installed in the surrounding range of the surround heat exchanger; an air guide ring is installed on one side of the shell; the panel covers one side of the shell, wherein the one side is the side on which the air guide ring is installed; the panel is constructed into a structure capable of ventilation. Because the surround heat exchanger has at least two bending areas, the heat exchange area is increased. Thus, the heat exchange efficiency can be improved.

[0078] The above descriptions are only some preferred embodiments of the present disclosure and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the invention involved in the embodiments of the present disclosure is not limited to the technical solutions formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the above inventive concept. For example, the above features are replaced with (but not limited to) technical features with similar functions disclosed in the embodiments of the present disclosure.

Claims

1. An air conditioner outdoor unit, characterized in that: The air conditioner outdoor unit includes a compressor, a surround heat exchanger, a guide plate, a fan assembly, a housing and a panel, wherein: The compressor and the surround type heat exchanger are both installed inside the shell; The compressor and the surround type heat exchanger are separated by the guide plate; The wrap-around heat exchanger is provided with at least two bending areas; The number of the surround type heat exchanger is at least one; When the number of the surround type heat exchanger is more than one, each surround type heat exchanger is installed with an electronic expansion valve; The guide plate is installed on one side of the surround type heat exchanger and has a preset angle with the surround type heat exchanger; The fan assembly is installed in the surrounding range of the surround heat exchanger; An air guide ring is installed on one side of the shell; The panel covers one side of the housing, wherein the one side is the side on which the air guide ring is installed; The panel is constructed in a ventilated structure.

2. The air conditioner outdoor unit according to claim 1, characterized in that: The air conditioner outdoor unit also includes a partition plate; The partition plate is connected to the edge of the wrap-around heat exchanger.

3. The air conditioner outdoor unit according to claim 2, characterized in that: The guide plate and the partition plate divide the interior of the shell into a heat exchange chamber and a compressor chamber; The surround heat exchanger and the fan assembly are both installed in the heat exchange chamber; The compressor is installed in the compressor compartment.

4. The air conditioner outdoor unit according to claim 1, characterized in that: The housing also includes a side panel; The side panels are provided with air windows; The number of the air window is at least one.

5. The air conditioner outdoor unit according to claim 1, characterized in that: The fan assembly includes a fan, a motor and a bracket; The fan is mounted on the motor; The motor is mounted on the bracket.

6. The air conditioner outdoor unit according to claim 1, characterized in that: The air guide ring is provided with an air outlet; An extension wall is provided along the circumference of the air outlet; The extension wall faces the interior of the housing; The extension wall is provided with a wind gathering structure, and the wind gathering structure expands in all directions.

7. The air conditioner outdoor unit according to claim 1, characterized in that: The air guide ring is provided with a first buckle; The panel is provided with a second buckle; The panel is connected to the air guide ring through the first buckle and the second buckle.

8. The air conditioner outdoor unit according to claim 2, characterized in that: At least one window is disposed on the partition plate.

9. The air conditioner outdoor unit according to claim 1, characterized in that: The panel is configured to be mounted on the housing by snapping.

10. The air conditioner outdoor unit according to claim 1, characterized in that: The bottom of the housing is provided with fixing feet; The fixing foot is provided with a fixing hole; The number of the fixing legs is at least two, and they are respectively arranged on two sides of the shell; The fixing foot and the shell are an integral structure, and the fixing foot protrudes from the surface of the shell; The fixing foot is provided with a protruding structure, and the protruding structure surrounds the fixing hole; The bottom end of the fixed foot is also provided with a soft rubber pad; The area of ​​the soft rubber pad is larger than the bottom area of ​​the fixed foot; The soft rubber pad is also provided with a mounting seam, and the mounting seam is located below the fixing hole; The air conditioner outdoor unit also includes a mounting bracket; The mounting bracket is provided with a mounting hole; The mounting hole matches the fixing hole; The fixing foot is configured to be mounted on the mounting bracket.

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