Air conditioner outdoor unit and air conditioner

Abstract

The invention relates to the technical field of air conditioner equipment, in particular to an air conditioner outdoor unit and an air conditioner, and aims to solve the problems that the heat exchange efficiency and stability are affected due to the fact that control over the air suction superheat degree is not accurate enough in the running process of an existing air conditioner. In order to achieve the purpose, the air conditioner comprises a shell, the shell comprises dimming glass, the dimming glass is electrically connected with a power source and a controller, and the light transmittance of the dimming glass can change along with the change of voltage; and the condenser is installed at the position, close to the dimming glass, in the shell so that sunlight can penetrate through the dimming glass to irradiate the condenser, and through the arrangement, illumination can be reasonably utilized to conduct auxiliary adjustment on the superheat degree of the refrigerant so that the superheat degree can be controlled within a reasonable range.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioning equipment, and specifically provides an air conditioning outdoor unit and an air conditioner. Background Art

[0002] Suction superheat usually refers to the difference between the temperature of the refrigerant at the outlet of the evaporation side and the saturation temperature at the corresponding pressure. It is a key parameter in the air conditioning heat exchange system, reflecting the heat absorption and evaporation efficiency of the refrigerant on the evaporation side.

[0003] The suction superheat has a significant impact on the efficiency and stability of the heat exchange system. Appropriate suction superheat can ensure that the refrigerant is completely vaporized, so that it enters the compressor in a vapor state, avoiding the wet stroke and potential liquid hammer risk caused by liquid refrigerant entering the compressor. However, excessive superheat will increase the load of the compressor, increase power consumption and exhaust temperature, and may cause overload and overheating. Therefore, the superheat needs to be controlled within a reasonable range.

[0004] However, the existing air conditioners do not accurately control the suction superheat during operation, which affects the heat exchange efficiency and stability.

[0005] Therefore, this field needs a new technical solution to solve the above problems. Summary of the invention

[0006] The present invention aims to solve the above technical problem, namely, the problem that the existing air conditioner does not accurately control the suction superheat during operation, which affects the heat exchange efficiency and stability.

[0007] In a first aspect, the present invention provides an air conditioner outdoor unit, comprising: a shell, the shell comprising dimming glass, the dimming glass is electrically connected to a power supply and a controller, and the transmittance of the dimming glass can change with the change of voltage; a condenser, the condenser is installed in the shell near the dimming glass so that sunlight can pass through the dimming glass and irradiate the condenser.

[0008] In the preferred technical solution of the above-mentioned air-conditioning outdoor unit, the air-conditioning outdoor unit also includes a temperature sensing component installed on the condenser, and the temperature sensing component can detect the superheat at the outlet of the condenser so as to adjust the transmittance of the dimming glass according to the superheat.

[0009] In the preferred technical solution of the above-mentioned air conditioner outdoor unit, the condenser includes multiple branch pipes, the dimming glass is provided with multiple pieces, the positions of the multiple pieces of dimming glass correspond one-to-one to the positions of the multiple branch pipes, and the temperature sensing components are provided with multiple pieces, each of which is installed on each branch pipe respectively.

[0010] In the preferred technical solution of the above-mentioned air conditioner outdoor unit, the temperature sensing component includes a first temperature sensor and a second temperature sensor, the first temperature sensor is installed at the outlet of the branch pipe, and the second temperature sensor is installed in the middle section of the branch pipe.

[0011] In the preferred technical solution of the above-mentioned air conditioner outdoor unit, a plurality of the dimming glasses are arranged at intervals, and a plurality of vents are also arranged on the shell, and the vents are arranged between two adjacent pieces of the dimming glasses.

[0012] In the preferred technical solution of the above-mentioned air conditioner outdoor unit, the dimming glass includes a dimming film and a tempered film, and the tempered film is located on the outside of the dimming film to improve the structural strength of the dimming glass.

[0013] In the preferred technical solution of the above-mentioned air conditioner outdoor unit, the dimming glass further includes a hollow layer, and the hollow layer is located between the dimming film and the tempered film, which can prevent the dimming film from failing at extremely high or low temperatures.

[0014] In the preferred technical solution of the above-mentioned air conditioner outdoor unit, a light-absorbing material is further provided on the condenser to increase the amount of heat absorbed by the condenser when the air conditioner is in a heating condition.

[0015] In the preferred technical solution of the above-mentioned air conditioner outdoor unit, the air conditioner outdoor unit also includes a light sensor, which can detect the light intensity outside the dimming glass to control the power on and off of the dimming glass according to the light intensity.

[0016] In a second aspect, the present invention provides an air conditioner, comprising the above-mentioned air conditioner outdoor unit.

[0017] In the case of adopting the above technical solution, the air conditioner outdoor unit of the present invention includes: a shell, the shell includes a dimming glass, the dimming glass is electrically connected to the power supply and the controller, and the transmittance of the dimming glass can change with the change of voltage; a condenser, the condenser is installed in the shell near the dimming glass, so that sunlight can pass through the dimming glass and shine on the condenser. Through such a setting, the transmittance of the dimming glass can be adjusted to control the intensity of light irradiation on the condenser, and then control the heat transfer to the condenser, so as to achieve the effect of auxiliary regulation of the superheat of the refrigerant, so as to maintain the dynamic balance of the superheat, so that the superheat is always kept within a reasonable range, which not only helps to increase the heating amount, but also enables the refrigerant to evaporate fully, prevents droplets from entering the compressor and causing the risk of wet stroke and liquid hammer, improves the stability of the air conditioner, and extends the service life.

[0018] Furthermore, the air conditioner outdoor unit of the present invention also includes a temperature sensing component installed on the condenser, which can detect the superheat at the outlet of the condenser so as to adjust the light transmittance of the dimming glass according to the superheat. Through such a setting, the superheat of the condenser during the refrigerant endothermic evaporation process can be detected in real time so as to adjust the light transmittance of the dimming glass according to the change of the superheat, and the auxiliary control of the superheat is achieved by adjusting the light intensity, so that the superheat can always fluctuate within a reasonable range, so as to maintain the dynamic balance of the superheat and ensure the good operation of the air conditioner.

[0019] Furthermore, the condenser of the present invention includes a plurality of branch pipes, a plurality of dimming glasses are provided, the positions of the plurality of dimming glasses correspond to the positions of the plurality of branch pipes one by one, a plurality of temperature sensing components are provided, and each temperature sensing component is installed on each branch pipe. Through such a setting, the dimming glasses corresponding to each branch can be independently controlled to adjust the superheat at the outlet of each branch, so that the superheat of each branch can fluctuate within a reasonable range, thereby improving the control accuracy of the superheat, further improving the heat absorption and evaporation amount of the refrigerant in the condenser, and ensuring the stability and service life of the system.

[0020] Furthermore, the temperature sensing assembly of the present invention includes a first temperature sensor and a second temperature sensor, wherein the first temperature sensor is installed at the outlet of the branch pipe and the second temperature sensor is installed in the middle section of the branch pipe. Through such an arrangement, on the one hand, the temperature inside the condenser can be detected by the second temperature sensor, and then the saturation temperature of the refrigerant when evaporating can be measured, so that the calculated superheat degree is more accurate; on the other hand, the detection method is simple, reliable and easy to implement.

[0021] Furthermore, the multiple dimming glasses of the present invention are arranged at intervals, and the housing is also provided with multiple vents, which are arranged between two adjacent dimming glasses. Through such an arrangement, while the light transmittance of the air conditioner housing is adjustable, the ventilation effect of the air conditioner outdoor unit is improved, which is beneficial to the air exchange between indoor and outdoor, and improves the heat exchange efficiency.

[0022] Furthermore, the dimming glass of the present invention includes a dimming film and a tempered film, and the tempered film is located outside the dimming film to improve the structural strength of the dimming glass. Through such a configuration, the dimming film can be protected to prevent the dimming film from being damaged by foreign objects.

[0023] Furthermore, the dimming glass of the present invention further includes a hollow layer, which is located between the dimming film and the tempered film, and can prevent the dimming film from failing at extremely high or low temperatures. Through such a setting, the temperature of the dimming film is prevented from fluctuating greatly under extreme weather conditions and exceeding the working temperature of the dimming film, thereby preventing the dimming film from losing its activity and causing irreversible damage.

[0024] Furthermore, the condenser of the present invention is also provided with a light absorbing material to increase the heat absorption of the condenser when the air conditioner is in a heating condition. By such a setting, the superheat of the refrigerant is assisted to be adjusted, which helps to further improve the control accuracy of the superheat.

[0025] Furthermore, the air conditioner outdoor unit of the present invention also includes a light sensor, which can detect the light intensity outside the dimming glass to control the power on and off of the dimming glass according to the light intensity. Through such a setting, it is judged whether the outdoor light intensity can provide heat energy for the condenser, so as to decide whether it is necessary to continue to supply power to the dimming glass to adjust the transmittance, so that the dimming glass will be powered on to adjust the transmittance only when the light is strong enough to provide heat energy for the condenser, and when the light is weak and cannot provide heat for the condenser, the dimming glass will be powered off to keep it in an opaque state, avoiding invalid adjustment of the dimming glass, and achieving the purpose of saving energy and protecting equipment.

[0026] In addition, the air conditioner further provided by the present invention on the basis of the above-mentioned air conditioner outdoor unit has the technical effects possessed by the above-mentioned air conditioner outdoor unit due to the adoption of the above-mentioned air conditioner outdoor unit. Compared with the air conditioner before the improvement, the air conditioner of the present invention can use light to assist in adjusting the superheat of the refrigerant in the condenser, thereby improving the control accuracy, making the operation of the air conditioner more stable, extending the service life of the compressor, and at the same time improving the heat exchange efficiency and reducing energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings, in which:

[0028] Figure 1 The present invention is a schematic diagram of the assembly of the housing and condenser of the air conditioner outdoor unit Figure 1 ;

[0029] Figure 2 The present invention is a schematic diagram of the assembly of the housing and the condenser of the air conditioner outdoor unit Figure 2 ;

[0030] Figure 3 is a schematic structural diagram of the dimming glass of the present invention;

[0031] Figure 4 is a schematic structural diagram of a first embodiment of the dimming film of the present invention;

[0032] Figure 5 It is a structural schematic diagram of the second embodiment of the dimming film of the present invention.

[0033] List of reference numerals:

[0034] 1. Shell; 11. Dimming glass; 111. Dimming film; 1111. Transparent conductive layer; 1112. Liquid crystal polymer; 1113. Electrochromic layer; 1114. Electrolyte layer; 1115. Ion storage layer; 112. Tempered film; 113. Hollow layer; 12. Ventilation port; 2. Condenser; 21. Main pipeline; 211. First temperature sensor; 212. Second temperature sensor; 22. Branch pipeline. DETAILED DESCRIPTION

[0035] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0036] It should be noted that in the description of the present invention, the terms "inside" and "outside" and other terms indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0037] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "set", "install", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] Based on the problem pointed out in the background technology that the existing air conditioner does not accurately control the suction superheat during operation, which affects the heat exchange efficiency and stability. The present invention provides an air conditioner outdoor unit and an air conditioner. By arranging a dimming glass on the shell of the outdoor unit, light can pass through the dimming glass and irradiate the condenser. The light transmittance of the dimming glass is adjusted according to the superheat of the condenser, so as to achieve the effect of reasonably utilizing light energy to assist in adjusting the superheat, so that the superheat of the air conditioner remains dynamically stable.

[0039] Specifically, Figure 1 and Figure 2 As shown, the air conditioner outdoor unit of the present invention includes: a shell 1, the shell 1 includes a dimming glass 11, the dimming glass 11 is electrically connected to a power supply and a controller, and the transmittance of the dimming glass 11 can change with the change of voltage; a condenser 2, the condenser 2 is installed in the shell 1 near the dimming glass 11, and can allow sunlight to pass through the dimming glass 11 to irradiate the condenser 2.

[0040] The outdoor unit of the air conditioner of the present invention can be the outdoor unit part of a household air conditioner, installed on the outer wall of a building, or it can be the outdoor unit part of a car air conditioner, installed on the outside of a car body. The outdoor unit of the air conditioner includes a shell 1 and components such as a condenser 2, a fan and a compressor installed in the shell 1. It is connected to the evaporator and other components of the indoor unit of the air conditioner through a fluorine tube to form a heat exchange circulation system. The switching of the air conditioner between the heating mode and the cooling mode is achieved by controlling the circulation direction of the refrigerant.

[0041] In the heating mode of the air conditioner, condenser 2, as the evaporation side, needs to absorb heat to evaporate the refrigerant. Ideally, a certain degree of superheat needs to be maintained at its outlet, preferably set to 2°C, so that the refrigerant can fully evaporate and then enter the compressor in a vapor state, avoiding the wet stroke and potential liquid hammer risk caused by liquid refrigerant entering the compressor.

[0042] However, if the superheat is too high, the load on the compressor will increase, the power consumption and exhaust temperature will increase, which may cause the compressor to overload and overheat, causing the compressor to frequently enter protective shutdown, affecting the heating efficiency and stability. At the same time, excessively high operating temperature will also damage the compressor and shorten its service life. Therefore, the superheat needs to be controlled within a reasonable range.

[0043] Since condenser 2 is installed in the outdoor unit of the air conditioner, especially the car air conditioner, its working environment is complex and changeable, so condenser 2 is easily affected by outdoor environmental factors such as light and temperature, making it difficult for its outlet to reach an ideal overheating state. For example, the heating mode is usually operated in winter. When encountering extremely cold temperatures, if only convection heat exchange is performed between condenser 2 and the air, the refrigerant may not obtain enough heat.

[0044] Based on the above reasons, the present application creatively applies the dimming glass 11 to the shell 1 of the air conditioner outdoor unit, so that the shell 1 has light transmittance, and at the same time, the transmittance of the dimming glass 11 can be controlled by voltage, so that when the superheat is low, the transmittance of the dimming glass 11 can be increased, and the intensity of sunlight on the condenser 2 is increased to increase the heat supplement to the condenser 2, thereby increasing the heat absorption of the refrigerant and increasing the superheat; when the superheat is high, the transmittance of the dimming glass 11 will be lowered, and the intensity of sunlight on the condenser 2 will be reduced to reduce the heat supplement to the condenser 2, thereby reducing the heat absorption of the refrigerant, reducing the superheat, and realizing auxiliary regulation of the superheat.

[0045] For example, the housing 1 may be entirely composed of the dimming glass 11, or the dimming glass 11 may be used only in some positions, as long as the sunlight can penetrate the housing 1 and shine into the interior of the external unit. In the present invention, the outer side surface and the top surface of the housing 1 that receive the longest light exposure time are preferably provided with the dimming glass 11 to increase the exposure area and exposure time of the sunlight.

[0046] Specifically, the condenser 2 is installed on the inner side of the dimming glass 11, and the side with the largest area on the condenser 2 is set as the light-facing side, so that the light-facing side faces the dimming glass 11, so as to receive sunlight to the greatest extent and increase heat absorption efficiency.

[0047] At the same time, in a preferred embodiment, the angle of the condenser 2 can also be adjusted within a certain range, so that the light-facing surface of the condenser 2 can rotate with the direction of the sun to ensure the heat absorption efficiency of the light-facing surface. In addition, the surface of the condenser 2 is also coated with a light-absorbing material, such as black paint or carbon nanotube composite materials, which can absorb a large amount of solar radiation and convert it into heat energy. The above two light-absorbing materials have a high absorption rate for solar energy, good stability and light-to-heat conversion performance, and can effectively increase the heat absorption of the condenser 2.

[0048] Preferably, if Figure 3 As shown, the dimming glass 11 includes a dimming film 111, a tempered film 112 and a hollow layer 113, wherein the dimming film 111 is located at the innermost side, the tempered film 112 is located at the outermost side, and the hollow layer 113 is located therebetween, so that the dimming glass 11 forms a sandwich structure.

[0049] The dimming film 111 can switch between transparent and opaque states through various methods such as electrical control, temperature control, light control, and voltage control.

[0050] In a preferred embodiment of the present invention, Figure 4 As shown, the dimming film 111 is set as an electrically controlled dimming film, and its working mechanism is based on the electric field effect of liquid crystal molecules. Specifically, the electrically controlled dimming film is a layer of liquid crystal polymer 1112 sandwiched between two transparent conductive layers 1111. In the natural state (no power is applied), the liquid crystal molecules are arranged disorderly, and light will be scattered when it shines on the dimming film 111, making the dimming film 111 opaque; when power is applied, the electric field makes the liquid crystal molecules arranged in order, and the light can pass through the dimming film 111 smoothly, so that the dimming film 111 becomes transparent. By adjusting the magnitude and direction of the voltage, the arrangement of the liquid crystal molecules can be controlled, thereby realizing the adjustment of the transmittance. The greater the voltage applied to the dimming film 111, the higher its transmittance, and the more transparent the whole is. The smaller the voltage applied to the dimming film 111, the lower its transmittance, and the more blurred the whole is.

[0051] In another preferred embodiment of the present invention, Figure 5As shown, the dimming film 111 is configured as an electrochromic film, including two transparent conductive layers 1111 and an electrochromic layer 1113, an electrolyte layer 1114 and an ion storage layer 1115 located between the transparent conductive layers 1111, wherein the transparent conductive layer 1111 can transmit electric current in addition to supporting and protecting the interior, the electrochromic layer 1113 determines the color and dimming property of the dimming film 111, the electrolyte layer 1114 is located in the middle and is a channel for ions to move between the electrochromic layer 1113 and the ion storage layer 1115, and the ion storage layer 1115 can release and recycle ions. The specific principle is as follows: when voltage is applied to the electrochromic film, ions in the electrochromic layer 1113 will move through the electrolyte layer 1114 to the ion storage layer 1115 to undergo an oxidation-reduction reaction. During this process, the electrochromic layer 1113 absorbs light of different wavelengths and causes discoloration; and when a reverse voltage is applied to the electrochromic film, ions in the ion storage layer 1115 will return to the electrochromic layer 1113, and light can then pass through the electrochromic film again. In addition, by controlling the number of ion shuttling, the amount of light absorbed by the electrochromic layer 1113 can also be controlled, thereby achieving stepless regulation of light transmittance, and after the voltage is disconnected, the light transmittance will remain in the current state.

[0052] The tempered film 112 is located on the outermost side and can be set to a resin polycarbonate (PC) board or tempered glass, etc. It has high transparency and strength and is not easy to break. Especially when installed on the outdoor unit of the car air conditioner, it can effectively resist the impact of foreign objects such as hail and stones on the road surface and protect the internal dimming layer from damage.

[0053] Regarding the setting of the hollow layer 113, since the working temperature of the dimming film 111 is between -20℃ and 60℃, both too high and too low temperatures will affect the dimming performance of the dimming film 111, especially in hot summer, the surface temperature of the dimming film 111 will reach 60℃ or even higher under long-term exposure to the scorching sun, and the high temperature will make the dimming layer inactive. In the extremely cold weather in the north, the temperature can reach or be lower than -20℃, which will also make the dimming layer inactive. Therefore, long-term exposure to extremely high or extremely low temperatures will cause irreversible damage to the dimming layer, thereby making the dimming film 111 permanently blurred and losing its dimming function.

[0054] Based on this, the hollow layer 113 of the present invention is set as a sealed hollow interlayer between the dimming film 111 and the tempered film 112, which can play a certain heat insulation role and prevent the outdoor low or high temperature from being directly transmitted to the dimming film 111 through the tempered film 112 under extreme weather conditions, so that the working temperature of the dimming film 111 can be maintained within a safe range.

[0055] In order to accurately obtain the superheat at the outlet of the condenser 2, the present application is provided with temperature sensors at the outlet and the middle section of the condenser 2 to respectively detect the temperature of the refrigerant at the outlet and the middle section, and then calculates the difference between the outlet temperature and the middle section temperature to obtain the superheat. This method is simple, reliable and easy to implement, making the detection of superheat more accurate and sensitive, thereby providing an accurate basis for controlling the transmittance of the dimming glass 11.

[0056] In actual applications, when the outdoor light is weak, such as at night or on cloudy days, the auxiliary heating effect of light energy on the condenser 2 is negligible or even ineffective. At this time, if the dimming glass 11 is still powered to adjust the transmittance, it will cause a waste of electric energy. Therefore, the air-conditioning outdoor unit of the present invention also includes a light sensor, which can detect the light intensity outside the dimming glass 11 to control the power on and off of the dimming glass 11 according to the light intensity, that is, the light sensor is used to determine whether the outdoor light intensity can affect the heat of the condenser 2, so as to decide whether it is necessary to continue to power the dimming glass 11 to adjust the transmittance. The dimming glass 11 will be powered to adjust the transmittance only when the light is strong enough to provide heat energy for the condenser 2, and the dimming glass 11 will be powered off when the light is weak and cannot provide heat for the condenser 2, so as to avoid invalid adjustment of the dimming glass 11, thereby saving energy and protecting equipment.

[0057] In addition, the adjustment of light transmittance is also of certain significance under the cooling condition of the air conditioner. When the air conditioner performs the cooling mode in the hot summer, the condenser 2 changes from the evaporation side to the condensation side, and a large amount of heat needs to be dissipated outward. Therefore, the auxiliary heating effect of light is not needed, and the sunlight should be prevented from irradiating the condenser 2. At this time, the power to the dimming glass 11 will also be cut off to keep the light transmittance of the dimming glass 11 at the lowest state, thereby preventing sunlight from entering the outside unit to transfer heat to the condenser 2, reducing the heat absorption of the condenser 2, and improving the heat dissipation effect of the condenser 2 to meet the heat dissipation needs of the condenser 2 in the cooling mode.

[0058] The control logic of the air conditioner is described in detail below in combination with the specific structure and function of the air conditioner outdoor unit of the present invention:

[0059] After the air conditioner is turned on, it will first determine whether it is in heating mode or cooling mode;

[0060] If it is determined that the air conditioner is in heating mode, the outdoor light intensity will be obtained;

[0061] comparing the light intensity with a preset intensity;

[0062] If the light intensity is lower than the preset intensity, the connection between the dimming glass and the power supply is disconnected;

[0063] If the light intensity is not lower than the preset intensity, the outlet temperature of the condenser is obtained;

[0064] At the same time, the internal temperature of the condenser is obtained;

[0065] The superheat at the condenser outlet is obtained by calculating the difference between the outlet temperature and the internal temperature;

[0066] calculating the difference between the superheat and the target superheat;

[0067] comparing the difference value with a preset difference value;

[0068] If the difference is greater than a preset difference and the superheat is greater than a target superheat, the transmittance of the switchable glass is reduced;

[0069] If the difference is greater than the preset difference and the superheat is less than the target superheat, the light transmittance of the switchable glass is increased;

[0070] If the difference is not greater than the preset difference, the transmittance of the switchable glass is not adjusted.

[0071] Among them, the target superheat of the present invention is preferably set to 2°C, and the preset difference is set to 1°C.

[0072] This can maintain a dynamic balance of superheat and keep it within a reasonable range, which not only helps to increase the heating capacity, but also allows the refrigerant to evaporate fully, preventing droplets from entering the compressor and causing the risk of wet stroke and liquid hammer, thereby improving the stability of the air conditioner and extending its service life.

[0073] In addition, the condenser 2 generally includes a main pipeline 21 and a plurality of branch pipelines 22, such as Figure 1 As shown, this is because a main pipeline 21 is too long and has a large pressure drop, and the refrigerant in the condenser 2 needs to be divided into multiple parallel branch pipelines 22. However, due to the limitation of the process level, it is difficult to ensure that the refrigerant encounters the same resistance in each branch pipeline, resulting in uneven flow distribution. Therefore, when the lengths of the branch pipelines 22 are equal and the amount of heat absorbed is also equal, the branch pipeline 22 with a small flow rate is more likely to evaporate and overheat, and then the superheat degrees of each branch pipeline 22 will be different.

[0074] Based on this, in a preferred embodiment of the present invention, Figure 1As shown, a plurality of dimming glasses 11 are provided, and the positions of the plurality of dimming glasses 11 correspond one to one with the positions of the plurality of branch pipes 22. A plurality of temperature sensing components are provided, and each temperature sensing component is respectively installed on each branch pipe 22. The temperature sensing component includes a first temperature sensor 211 and a second temperature sensor 212. The first temperature sensor 211 is installed at the outlet of the branch pipe 22, and the second temperature sensor 212 is installed inside the branch pipe 22 to detect the overheat at the outlet of each branch pipe 22. The light transmittance of each dimming glass 11 can be independently adjusted according to the overheat of the corresponding branch.

[0075] Accordingly, during the control process, it is necessary to obtain the superheat at the outlet of each branch pipe 22, and then selectively adjust the transmittance of each piece of dimming glass 11 according to the superheat at the outlet of each branch pipe 22. The control logic between each piece of dimming glass 11 and the superheat at the outlet of each branch pipe 22 is the same as the above scheme and will not be repeated here.

[0076] In order to ensure air exchange between the air conditioner outdoor unit and the outdoors, a plurality of vents 12 are provided on the housing 1 , and a plurality of dimming glasses 11 are arranged at intervals, and the plurality of vents 12 are evenly distributed between two adjacent dimming glasses 11 .

[0077] In addition, the air conditioner further provided by the present invention on the basis of the above-mentioned air conditioner outdoor unit has the technical effects possessed by the above-mentioned air conditioner outdoor unit due to the adoption of the above-mentioned air conditioner outdoor unit. Compared with the air conditioner before the improvement, the air conditioner of the present invention can use light to assist in adjusting the superheat of the refrigerant in the condenser 2, thereby improving the control accuracy, making the operation of the air conditioner more stable, extending the service life of the compressor, and at the same time improving the heat exchange efficiency and reducing energy consumption.

[0078] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. An air conditioner outdoor unit, characterized in that: The air conditioner outdoor unit comprises: A housing, wherein the housing comprises a dimming glass, the dimming glass is electrically connected to a power source and a controller, and the light transmittance of the dimming glass can change with the change of voltage; A condenser is installed in the housing at a position close to the dimming glass so that sunlight can pass through the dimming glass and irradiate the condenser.

2. The air conditioner outdoor unit according to claim 1, characterized in that: The air conditioner outdoor unit further comprises a temperature sensing component mounted on the condenser, wherein the temperature sensing component can detect the superheat at the outlet of the condenser so as to adjust the light transmittance of the dimming glass according to the superheat.

3. The air conditioner outdoor unit according to claim 2, characterized in that: The condenser includes a plurality of branch pipes, the dimming glass is provided with a plurality of pieces, the positions of the plurality of dimming glass pieces correspond one to one with the positions of the plurality of branch pipes, and the temperature sensing components are provided with a plurality of pieces, each of which is installed on each of the branch pipes.

4. The air conditioner outdoor unit according to claim 3, characterized in that: The temperature sensing component includes a first temperature sensor and a second temperature sensor. The first temperature sensor is installed at the outlet of the branch pipe, and the second temperature sensor is installed in the middle section of the branch pipe.

5. The air conditioner outdoor unit according to claim 3, characterized in that: The plurality of dimming glasses are arranged at intervals, and the shell is also provided with a plurality of vents, which are arranged between two adjacent dimming glasses.

6. The air conditioner outdoor unit according to any one of claims 1 to 5, characterized in that: The dimming glass includes a dimming film and a tempered film, wherein the tempered film is located outside the dimming film to improve the structural strength of the dimming glass.

7. The air conditioner outdoor unit according to claim 6, characterized in that: The dimming glass further includes a hollow layer, and the hollow layer is located between the dimming film and the tempered film, so as to prevent the dimming film from failing at extremely high or low temperatures.

8. The air conditioner outdoor unit according to any one of claims 1 to 5, characterized in that: The condenser is also provided with a light absorbing material to increase the amount of heat absorbed by the condenser when the air conditioner is in a heating condition.

9. The air conditioner outdoor unit according to any one of claims 1 to 5, characterized in that: The air conditioner outdoor unit further includes a light sensor, which can detect the light intensity outside the dimming glass to control the power on and off of the dimming glass according to the light intensity.

10. An air conditioner, characterized in that: The air conditioner comprises the air conditioner outdoor unit according to any one of claims 1 to 9.

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