Refrigerating system and refrigerating equipment

Abstract

The utility model provides a refrigerating system and refrigerating equipment. The refrigerating system comprises a compressor, a first switching piece communicating with an outlet of the compressor, at least two condensers communicating with the first switching piece, a throttling piece communicating with the at least two condensers, and an evaporator communicating between the throttling piece and an inlet of the compressor. The first switching piece can conduct at least two of the at least two condensers, and the first switching piece is configured as follows: in a first refrigeration mode, the first switching piece can conduct at least two of the at least two condensers; in the second refrigeration mode, the first switching piece can conduct one of the at least two condensers; the refrigeration temperature of the first refrigeration mode is lower than that of the second refrigeration mode. The refrigerating system can be applied to the refrigerating equipment, energy conservation and noise reduction can be achieved while the refrigerating requirement of a user is met, and the user experience is improved.

Description

Technical Field

[0001] This disclosure relates to the field of refrigeration equipment technology, and in particular to a refrigeration system and refrigeration equipment. Background Technology

[0002] Refrigeration equipment such as refrigerators, freezers, and air conditioners are indispensable household appliances. These devices can be set to different temperatures to meet various user needs. However, the lower the required cooling temperature, the faster the compressor in the refrigeration system operates. This increases the system's discharge pressure and heat load, leading to higher operating noise, increased energy consumption, and a poorer user experience. Utility Model Content

[0003] In view of this, the present disclosure provides a refrigeration system and refrigeration equipment that can meet users' refrigeration needs while achieving energy saving and noise reduction, and improving user experience.

[0004] Specifically, this disclosure is achieved through the following technical solution:

[0005] According to a first aspect of the present disclosure, a refrigeration system for use in a refrigeration device is provided. The refrigeration system includes a compressor, a first switching element connected to the outlet of the compressor, at least two condensers connected to the first switching element, a throttling element connected to the at least two condensers, and an evaporator connected between the throttling element and the inlet of the compressor. The first switching element is capable of activating at least one of the at least two condensers. The first switching element is configured to: in a first refrigeration mode, activate at least two of the at least two condensers; in a second refrigeration mode, activate one of the at least two condensers; and the refrigeration temperature of the first refrigeration mode is lower than the refrigeration temperature of the second refrigeration mode.

[0006] The technical solution of this disclosure will be further explained below:

[0007] In one embodiment, at least two condensers include a first condenser connected between a first switching element and a throttling element, and a second condenser connected between the first switching element and the throttling element, wherein the heat dissipation area of ​​the first condenser is larger than the heat dissipation area of ​​the second condenser.

[0008] In one embodiment, when the refrigeration device is at a first ambient temperature, the compressor has a first speed and a second speed greater than the first speed. The first switching element includes a control valve configured such that: in a first refrigeration mode, when the compressor operates at a speed exceeding the second speed, the first switching element simultaneously activates both the first and second condensers; in a second refrigeration mode, when the compressor operates at a speed not exceeding the first speed, the first switching element activates the second condenser; and when the compressor operates at a speed exceeding the first speed but not exceeding the second speed, the first switching element activates the first condenser.

[0009] In one embodiment, when the first ambient temperature is set to no more than 20°C, the first rotational speed is set to 2000 rpm and the second rotational speed is set to 3500 rpm. When the first ambient temperature is set to more than 20°C but no more than 35°C, the first rotational speed is set to 1500 rpm and the second rotational speed is set to 3000 rpm.

[0010] In one embodiment, when the refrigeration equipment is at a second ambient temperature greater than the first ambient temperature, the compressor is further provided with a third speed greater than the first speed and less than the second speed. The control valve is configured such that: in a first refrigeration mode, the compressor operates at a speed exceeding the third speed, and the first switching element simultaneously activates the first condenser and the second condenser; in a second refrigeration mode, the compressor operates at a speed not exceeding the third speed, and the first switching element activates the first condenser.

[0011] In one embodiment, the second ambient temperature is set to exceed 35°C, and the third rotational speed is set to 2500 rpm.

[0012] In one embodiment, the refrigeration system further includes a dryer filter communicating between at least two condensers and a throttling element.

[0013] In one embodiment, at least two evaporators are provided, and throttling elements are provided one-to-one with the evaporators. The refrigeration system also includes a second switching element, which is connected between the dryer filter and each throttling element. The second switching element can conduct at least one of the at least two evaporators, so that the refrigerant output by the compressor exchanges heat through at least one of the at least two evaporators.

[0014] According to a second aspect of the present disclosure, a refrigeration device is provided, including a controller, an ambient temperature sensor, and any of the aforementioned refrigeration systems. The ambient temperature sensor, the compressor, and the first switching element are electrically connected to the controller.

[0015] In one embodiment, the refrigeration equipment further includes a housing, an inner liner, and a fan. A compressor and at least two condensers are respectively disposed between the housing and the inner liner. The inner liner is provided with a refrigeration duct and at least one refrigeration chamber connected to the refrigeration duct. The fan and evaporator are respectively disposed in the refrigeration duct. The fan is electrically connected to the controller, so that the fan can blow the cold energy generated by the evaporator into the refrigeration chamber.

[0016] The technical solutions provided by the embodiments of this disclosure have at least the following beneficial effects:

[0017] In operation, the refrigeration system provided in this disclosure delivers a high-temperature, high-pressure gaseous refrigerant via a compressor. This gaseous refrigerant dissipates heat through a first condenser and / or a second condenser connected by a first switching element, forming a medium-temperature, high-pressure refrigerant. The medium-temperature, high-pressure refrigerant then undergoes further cooling and pressure reduction through the expansion and throttling action of a throttling element, enabling the throttling element to deliver a low-temperature, low-pressure liquid refrigerant to the evaporator. The low-temperature, low-pressure liquid refrigerant evaporates in the evaporator, forming a gaseous refrigerant that returns to the compressor, creating a circulation loop. During evaporation, the liquid refrigerant absorbs heat, thus achieving the refrigeration function of the system.

[0018] The refrigeration system generates cooling capacity based on the user's cooling needs, and the cooling capacity is positively correlated with the compressor's operating speed. Therefore, when the user's required cooling capacity increases, the compressor's operating speed increases accordingly, and the first switching element can simultaneously activate at least two of the at least two condensers for heat dissipation. This increases the heat dissipation area of ​​the refrigeration system, improves the refrigeration cycle efficiency, increases the cooling capacity, meets the user's cooling needs, and also reduces the system's discharge pressure and reduces pipeline vibration, thus reducing noise. When the user's required cooling capacity decreases, the compressor's operating speed decreases accordingly, and the first switching element can activate one of the condensers for heat dissipation. This reduces the refrigerant flow resistance within the refrigeration system, improves the condenser's heat transfer coefficient and refrigeration cycle efficiency, enabling the refrigeration equipment to achieve energy savings while meeting the user's cooling needs.

[0019] Therefore, the refrigeration system provided in this disclosure can not only meet the user's refrigeration needs, but also adaptively switch the operating pipeline of the condenser to achieve energy saving and noise reduction, and improve the user experience.

[0020] It is understood that the refrigeration system provided in this disclosure is applicable to refrigeration equipment, thereby enabling the refrigeration equipment to meet users' cooling needs while also saving energy and reducing noise, thus improving the user experience. Furthermore, the refrigeration equipment provided in this disclosure is not limited to refrigerators, freezers, or air conditioners.

[0021] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0022] The accompanying drawings, which form part of this disclosure, are used to provide a further understanding of this disclosure. The illustrative embodiments of this disclosure and their descriptions are used to explain this disclosure and do not constitute an undue limitation of this disclosure.

[0023] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the structure of a refrigeration system according to one embodiment.

[0025] Figure 2 A schematic diagram of the refrigeration system shown in another embodiment.

[0026] Figure 3 This is a schematic diagram of the connection between the controller of a refrigeration device, the ambient temperature sensor, and the refrigeration system, as shown in one embodiment.

[0027] Figure 4 This is a schematic diagram of the structure of a refrigerator as an embodiment of the refrigeration equipment.

[0028] Figure 5 for Figure 4 Sectional view along the middle AA.

[0029] Figure 6 for Figure 4 A cross-sectional view along the middle BB.

[0030] Figure label:

[0031] 1-Refrigeration equipment; 10-Refrigeration system; 11-Compressor; 12-First switching element; 13-First condenser; 14-Second condenser; 15-Throttling element; 16-Evaporator; 17-Drier filter; 18-Second switching element; 20-Controller; 30-Ambient temperature sensor; 40-Casing; 50-Inner liner; 51-Refrigeration aisle; 52-Refrigeration compartment; 60-Fan. Detailed Implementation

[0032] The technical solutions in the embodiments (or "implementations") of this disclosure will be clearly and completely described herein with reference to the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements.

[0033] If any terms relating to directional indications or positional relationships are used in the embodiments of this disclosure (e.g., up, down, left, right, front, back, inside, outside, top, bottom, center, vertical, horizontal, longitudinal, transverse, length, height, counterclockwise, clockwise, axial, radial, circumferential, etc.), such terms are only used to explain the relative positional relationships and movements between components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications or positional relationships will also change accordingly.

[0034] Refrigeration equipment such as refrigerators, freezers, and air conditioners are indispensable household appliances. These devices can be configured to provide different temperatures to meet various user needs. Taking refrigerators as an example, with technological advancements, some refrigerators now feature a deep-freeze function. Unlike the non-deep-freeze mode, in deep-freeze mode, the compressor speed increases to provide sufficient cooling, allowing food placed inside to quickly enter a frozen state through rapid cooling. This locks in nutrients and reduces bacterial growth.

[0035] However, while refrigerators in these technologies possess deep-cooling capabilities, their refrigeration systems have limited pressure reduction capacity and cannot effectively dissipate the heat generated by refrigerant heat exchange to the outside. Consequently, when these refrigerators operate in deep-cooling mode, the increased compressor speed leads to increased exhaust pressure in the refrigeration system, exacerbating pipe vibration and resulting in louder operation. Simultaneously, the increased heat load on the refrigeration system leads to higher energy consumption and a poorer user experience.

[0036] Typically, to achieve energy saving and noise reduction in refrigerators, some related technologies often use condensers with larger heat dissipation areas to cope with the increased exhaust pressure and heat load brought about by the deep cooling mode of the refrigerator. However, simply increasing the size of the condenser will reduce the heat exchange efficiency of the refrigerator when it is running in non-deep cooling mode, thus affecting the cooling effect of the refrigerator in non-deep cooling mode.

[0037] Therefore, this disclosure provides a refrigeration system that can meet the various refrigeration needs of users using refrigeration equipment, and achieve energy saving and noise reduction of refrigeration equipment, thereby improving the user experience.

[0038] The refrigeration system 10 provided in this application will now be described in conjunction with the accompanying drawings.

[0039] like Figure 1As shown, this application provides a refrigeration system 10, including a compressor 11, a first switching element 12 connected to the outlet of the compressor 11, at least two condensers connected to the first switching element 12, a throttling element 15 connected to the at least two condensers, and an evaporator 16 connected between the throttling element 15 and the inlet of the compressor 11. The first switching element 12 is capable of activating at least one of the at least two condensers. The first switching element 12 is configured such that: in a first refrigeration mode, the first switching element 12 is capable of activating at least two of the at least two condensers; in a second refrigeration mode, the first switching element 12 is capable of activating one of the at least two condensers; the refrigeration temperature of the first refrigeration mode is lower than the refrigeration temperature of the second refrigeration mode.

[0040] Understandably, during the operation of the refrigeration system 10, the compressor 11 outputs a high-temperature, high-pressure gaseous refrigerant. This high-temperature, high-pressure gaseous refrigerant dissipates heat through the first condenser 13 and / or the second condenser 14, which are connected by the first switching element 12, forming a medium-temperature, high-pressure refrigerant. The medium-temperature, high-pressure refrigerant then undergoes further cooling and pressure reduction through the expansion and throttling action of the throttling element 15, allowing the throttling element 15 to output a low-temperature, low-pressure liquid refrigerant to the evaporator 16. The low-temperature, low-pressure liquid refrigerant evaporates in the evaporator 16 to form a gaseous refrigerant. During evaporation, the liquid refrigerant absorbs heat, achieving the cooling function of the refrigeration system 10. Furthermore, the gaseous refrigerant flowing out of the evaporator 16 can flow back to the compressor 11, where it is repressurized to form a high-temperature, high-pressure gaseous refrigerant before being output, thus forming the refrigerant circuit of the refrigeration system 10. In this way, the refrigerant in the refrigeration system 10 can circulate, maintaining the cooling effect.

[0041] It should be noted that the refrigeration system 10 can generate cooling capacity according to the user's cooling needs. For example, if the cooling temperature of the first cooling mode is lower than that of the second cooling mode, the cooling capacity of the first cooling mode is greater than that of the second cooling mode. Understandably, when the refrigeration system 10 is applied to a refrigerator, the first cooling mode can correspond to the refrigerator's first cooling mode, and the second cooling mode can correspond to the refrigerator's regular cooling mode. Correspondingly, the cooling capacity of the refrigeration system 10 is positively correlated with the operating speed of the compressor 11. For example, the operating speed of the compressor 11 in the first cooling mode is higher than that in the second cooling mode. The first switching element 12 can adaptively adjust the connection and disconnection between at least two condensers according to the operating speed of the compressor 11 to achieve energy saving and noise reduction of the refrigeration system 10.

[0042] Specifically, when the refrigeration system 10 operates in the first refrigeration mode, the compressor 11 speed increases, the heat load of the refrigeration system 10 increases, and the first switching element 12 of the refrigeration system 10 can simultaneously activate at least two condensers for heat dissipation. This increases the heat dissipation area of ​​the refrigeration system 10, improves the refrigeration cycle efficiency, increases the cooling capacity, meets the needs of deep cooling, and also reduces the discharge pressure of the refrigeration system 10, reducing the vibration of the pipeline and thus achieving noise reduction. When the refrigeration system 10 operates in the second refrigeration mode, the compressor 11 speed decreases compared to the first refrigeration mode, the heat load of the refrigeration system 10 decreases relatively, and the first switching element 12 of the refrigeration system 10 can activate one of the condensers for heat dissipation. This reduces the flow resistance of the refrigerant within the refrigeration system 10, improves the heat transfer coefficient of the condenser and the refrigeration cycle efficiency, enabling the refrigeration system 10 to achieve energy savings while meeting the refrigeration requirements of the second refrigeration mode. Thus, the refrigeration system 10 provided by this disclosure can meet the user's refrigeration needs while achieving energy saving and noise reduction, thereby improving the user experience.

[0043] Understandably, the first switching element 12 includes various control valves such as solenoid valves, hydraulic valves, or ball valves. The throttling element 15 includes throttling devices such as capillary tubes or expansion valves, which are not limited in this disclosure.

[0044] Furthermore, the refrigeration system 10 can be applied to refrigeration equipment 1 such as refrigerators, freezers, or air conditioners. The compressor 11 can be electrically connected to the controller 20 in the refrigeration equipment 1 to adjust and detect the operating speed of the compressor 11 according to the user's refrigeration needs. The first switching element 12 can also be electrically connected to the controller 20 of the refrigeration equipment 1 to adapt the switching mechanism of the first switching element 12 according to the user's refrigeration needs, which will not be described in detail in this disclosure.

[0045] See Figure 2 In some embodiments, the refrigeration system 10 further includes a dryer filter 17 communicating between at least two condensers and the throttling element 15. This arrangement allows the refrigerant flowing out of the condensers to be dried and filtered by the dryer filter 17 before flowing into the throttling element 15, preventing blockage of the throttling element 15.

[0046] See Figure 2 In some embodiments, to improve the cooling effect of the refrigeration system 10, at least two evaporators 16 are provided, and throttling elements 15 are provided one-to-one with the evaporators 16. The refrigeration system 10 also includes a second switching element 18, which is connected between the dryer filter 17 and each throttling element 15. The second switching element 18 can conduct at least one of the at least two evaporators 16, so that the refrigerant output by the compressor 11 exchanges heat through at least one of the at least two evaporators 16.

[0047] It should be noted that when the refrigeration system 10 is operating in the first refrigeration mode, the required cooling capacity is relatively large. The second switching element 18 can simultaneously activate at least two of the at least two evaporators 16, allowing them to operate concurrently and thus increasing the cooling capacity. Furthermore, the operation of at least two evaporators 16 ensures a more even distribution of cooling capacity. When the refrigeration system 10 is operating in the second refrigeration mode, and the required cooling capacity is relatively small, the second switching element 18 can activate only one of the at least two evaporators 16, thereby preventing the compressor 11 from over-operating for cooling and achieving energy-saving operation.

[0048] Furthermore, when the refrigeration system 10 is applied to a refrigerator, each evaporator 16 can be configured to correspond to the number of refrigeration compartments 52 in the refrigerator. For example, if the refrigerator's refrigeration compartments 52 include a refrigerator compartment and a freezer compartment, the refrigeration system 10 can have two evaporators 16, one for heat exchange with the refrigerator compartment and the other for heat exchange with the freezer compartment. In this way, the refrigerator can achieve independent temperature control for each refrigeration compartment 52. Understandably, this configuration also reduces the risk of odor mixing between the refrigerator's refrigeration compartments 52. Of course, the number of refrigeration compartments 52 in the refrigerator can be more or less than the number of evaporators 16, and this disclosure does not impose any limitations.

[0049] Understandably, the second switching element 18 includes various control valves such as solenoid valves, hydraulic valves or ball valves. The second switching element 18 can also be electrically connected to the controller 20 of the refrigeration equipment 1 to adapt the switching mechanism of the second switching element 18 according to the user's refrigeration needs. This disclosure will not elaborate on this.

[0050] Of course, in other embodiments, when the refrigeration system 10 is provided with at least two evaporators 16, a second switching element 18 and a dryer filter 17, the dryer filter 17 may be changed from being disposed between at least two condensers and the second switching element 18 to being disposed between the second switching element 18 and each throttling element 15, as long as the dryer filter 17 is disposed before the refrigerant flows into the throttling element 15, this disclosure does not impose any restrictions.

[0051] See Figure 1 and Figure 2 In some embodiments, in order to achieve energy saving and noise reduction of the refrigeration system 10, the refrigeration system 10 includes at least two condensers, including a first condenser 13 connected between the first switching element 12 and the throttling element 15 and a second condenser 14 connected between the first switching element 12 and the throttling element 15, wherein the heat dissipation area of ​​the first condenser 13 is greater than the heat dissipation area of ​​the second condenser 14.

[0052] With this configuration, when the user's cooling demand is relatively low, the heat load generated in the refrigeration system 10 is relatively small. The first switching element 12 can activate the second condenser 14 to dissipate heat, further reducing the refrigerant flow resistance and improving the refrigeration cycle efficiency, achieving both cooling and energy saving. When the user's cooling demand increases, and the heat load generated in the refrigeration system 10 increases relatively, the first switching element 12 can activate the first condenser 13 to dissipate heat, further increasing the heat dissipation area of ​​the refrigeration system 10 and improving the refrigeration cycle efficiency. When the user's cooling demand increases further (e.g., the refrigerator operates in deep cooling mode), and the heat load generated in the refrigeration system 10 further increases, the first switching element 12 can simultaneously activate both the first condenser 13 and the second condenser 14 to dissipate heat, further increasing the heat dissipation area of ​​the refrigeration system 10, increasing the refrigerant subcooling, and improving the cooling capacity and refrigeration cycle efficiency of the refrigeration system 10 to meet the user's cooling needs. Furthermore, the simultaneous operation of both condensers can also reduce the exhaust pressure of the refrigeration system 10, reducing the degree of pipe vibration and thus lowering operating noise.

[0053] As an example, the heat dissipation area of ​​the second condenser 14 can be set to 70% of the heat dissipation area of ​​the first condenser 13. Of course, manufacturers can also adjust the heat dissipation area of ​​each condenser according to actual usage requirements, and this disclosure does not impose any restrictions.

[0054] like Figures 1 to 3 As shown, in some embodiments, to meet different levels of cooling needs of users, the compressor 11 is provided with a first speed and a second speed greater than the first speed. When the refrigeration device 1 is at a first ambient temperature, the first switching element 12 is configured such that: in the first cooling mode, when the compressor 11 operates at a speed exceeding the second speed, the first switching element 12 simultaneously activates the first condenser 13 and the second condenser 14. In the second cooling mode, when the compressor 11 operates at a speed not exceeding the first speed, the first switching element 12 activates the second condenser 14. When the compressor 11 operates at a speed exceeding the first speed but not exceeding the second speed, the first switching element 12 activates the first condenser 13.

[0055] It should be noted that, Figure 3 The refrigeration device 1 shown includes a controller 20 and an ambient temperature sensor 30 electrically connected to the controller 20. The compressor 11 and the first switching element 12 of the refrigeration system 10 are respectively electrically connected to the controller 20. The ambient temperature sensor 30 is used to detect the ambient temperature of the refrigeration device 1, and the controller 20 of the refrigeration device 1 can also adjust the operating speed of the compressor 11 according to the ambient temperature measured by the ambient temperature sensor 30. The ambient temperature sensor 30 can be a semiconductor temperature sensor, a digital temperature sensor, or an infrared temperature sensor, etc., and this disclosure does not impose any limitations.

[0056] It is understandable that the high-temperature, high-pressure gaseous refrigerant output by compressor 11 needs to exchange heat with the external environment where the refrigeration equipment 1 is located via the condenser. That is, the condenser dissipates the heat of the high-temperature, high-pressure gaseous refrigerant to the external environment where the refrigeration equipment 1 is located, thereby cooling the gaseous refrigerant. Therefore, the ambient temperature of the refrigeration equipment 1 affects the heat exchange efficiency of the condenser. For example, the higher the ambient temperature of the refrigeration equipment 1, the slower the condenser's heat dissipation and the worse the heat exchange effect. Therefore, to ensure the cooling effect of the refrigeration system 10, as the ambient temperature of the refrigeration equipment 1 increases, the heat dissipation area of ​​the condenser in the refrigeration system 10 should be increased to improve heat exchange efficiency. Simultaneously, the increased operating speed of compressor 11, as mentioned above, also increases the heat load of the refrigeration system 10. Therefore, to meet the user's cooling needs, the refrigeration system 10 needs to adjust the switching mechanism of the first switching element 12 according to the ambient temperature of the refrigeration equipment 1 and the operating speed of compressor 11, so that the refrigeration system 10 can achieve energy saving and noise reduction while meeting the user's cooling needs.

[0057] As one example, when the first ambient temperature of the refrigeration device 1 is set to no more than 20°C, the first speed of the compressor 11 is set to 2000 rpm, and the second speed of the compressor 11 is set to 3500 rpm. In other words, when the ambient temperature of the refrigeration device 1 is no more than 20°C, in the second refrigeration mode, if the operating speed of the compressor 11 is no more than 2000 rpm, the first switching element 12 activates the second condenser 14 for heat dissipation. If the operating speed of the compressor 11 exceeds 2000 rpm but does not exceed 3500 rpm, the first switching element 12 activates the first condenser 13 for heat dissipation. In the first refrigeration mode, if the operating speed of the compressor 11 exceeds 3500 rpm, the first switching element 12 activates both the first condenser 13 and the second condenser 14 for heat dissipation. It is understood that in other embodiments, the first and second speeds of the compressor 11 can be set to other values ​​according to actual usage requirements, and this disclosure does not impose any limitations.

[0058] As another example, when the first ambient temperature of the refrigeration device 1 exceeds 20°C but does not exceed 35°C, the first speed of the compressor 11 is set to 1500 rpm, and the second speed of the compressor 11 is set to 3000 rpm. In other words, when the ambient temperature of the refrigeration device 1 exceeds 20°C but does not exceed 35°C, in the second refrigeration mode, if the operating speed of the compressor 11 does not exceed 1500 rpm, the first switching element 12 activates the second condenser 14 for heat dissipation. If the operating speed of the compressor 11 exceeds 1500 rpm but does not exceed 3000 rpm, the first switching element 12 activates the first condenser 13 for heat dissipation. In the first refrigeration mode, if the operating speed of the compressor 11 exceeds 3000 rpm, the first switching element 12 activates both the first condenser 13 and the second condenser 14 for heat dissipation. It is understood that in other embodiments, the first and second speeds of the compressor 11 can be set to other values ​​according to actual usage requirements, and this disclosure does not impose any limitations.

[0059] Thus, when the refrigeration equipment 1 is running according to the user's cooling needs, the controller 20 can first determine the ambient temperature of the current refrigeration equipment 1 based on the temperature data detected by the ambient temperature sensor 30. If the ambient temperature of the current refrigeration equipment 1 is the first ambient temperature, the controller 20 can then control the first switching element 12 to conduct the first condenser 13 and / or the second condenser 14 to dissipate heat according to the operating speed of the compressor 11, so as to meet the user's cooling needs and achieve energy saving and noise reduction.

[0060] In some embodiments, if the refrigeration device 1 is at a second ambient temperature higher than the first ambient temperature, the compressor 11 is further provided with a third speed greater than the first speed and less than the second speed. The first switching element 12 is configured such that: in the first refrigeration mode, the compressor 11 operates at a speed exceeding the third speed, and the first switching element 12 simultaneously activates the first condenser 13 and the second condenser 14; in the second refrigeration mode, the compressor 11 operates at a speed not exceeding the third speed, and the first switching element 12 activates the first condenser 13.

[0061] With this configuration, when the ambient temperature of the refrigeration device 1 rises, the refrigeration system 10 can increase the heat dissipation area by activating the first condenser 13 or simultaneously activating the first condenser 13 and the second condenser 14, so as to avoid a decrease in the heat dissipation effect of the refrigeration system 10 due to the rise in the ambient temperature of the refrigeration device 1.

[0062] As an example, the second ambient temperature is set to exceed 35°C, and the third rotation speed is set to 2500 rpm. In other words, when the ambient temperature of the refrigeration device 1 exceeds 35°C, under the first refrigeration mode, if the operating speed of the compressor 11 exceeds 2500 rpm, the first switching element 12 simultaneously activates the first condenser 13 and the second condenser 14 for heat dissipation. Under the second refrigeration mode, if the operating speed of the compressor 11 does not exceed 2500 rpm, the first switching element 12 activates the first condenser 13 for heat dissipation. It is understood that in other embodiments, the third rotation speed of the compressor 11 can be set to other values ​​according to actual usage requirements, and this disclosure does not impose any limitations.

[0063] In addition to the refrigeration system 10 described above, this disclosure also provides a refrigeration device 1 that uses the refrigeration system 10 described above. The refrigeration device 1 of this disclosure will be described below with reference to the accompanying drawings.

[0064] See Figure 3 In some embodiments, this application provides a refrigeration device 1, including a controller 20, an ambient temperature sensor 30 electrically connected to the controller 20, and the aforementioned refrigeration system 10. The compressor 11 and the first switching element 12 of the refrigeration system 10 are respectively electrically connected to the controller 20.

[0065] It should be noted that the controller 20 can be used to control the operating speed of the compressor 11 in the refrigeration system 10. For example, when the refrigeration device 1 is running in the first refrigeration mode, the operating speed of the compressor 11 is increased compared to the operating speed in the second refrigeration mode. The controller 20 can also be used to control the connection and disconnection between the first switching element 12 and at least two condensers in the refrigeration system 10. For example, when the refrigeration device 1 is running in the second refrigeration mode, the first switching element 12 connects any one of the at least two condensers to achieve energy-saving refrigeration. When the refrigeration device 1 is running in the first refrigeration mode, the first switching element 12 connects at least two of the at least two condensers simultaneously to achieve noise-reducing refrigeration. The ambient temperature sensor 30 is used to detect the ambient temperature of the refrigeration device 1, so that the controller 20 can also control the on / off state of the first switching element 12 based on the ambient temperature of the refrigeration device 1 and the compressor 11 speed, thereby controlling the refrigeration system 10 to adaptively select one or more condensers to perform heat dissipation, thereby achieving energy saving and noise reduction of the refrigeration device 1 and improving the user experience.

[0066] Understandably, the controller 20 can be an MCU (microcontroller unit), PLC (programmable logic controller 20), CPU (central controller 20) or a single-chip microcomputer, etc., and the ambient temperature sensor 30 can be a semiconductor temperature sensor, digital temperature sensor or infrared temperature sensor, etc., without any limitation in this disclosure.

[0067] See Figures 4 to 6 , Figure 4The refrigeration device 1 shown in this embodiment is a schematic diagram of the structure of a refrigerator. Figure 5 for Figure 4 Sectional view along the middle AA. Figure 6 for Figure 4 A cross-sectional view along line BB. In one embodiment, taking a refrigerator as an example, the refrigeration device 1 is described in detail. When the refrigeration device 1 is a refrigerator, the refrigeration device 1 also includes a cabinet 40, an inner liner 50, and a fan 60. A compressor 11 and at least two condensers are respectively disposed between the cabinet 40 and the inner liner 50. The inner liner 50 is provided with a refrigeration duct and at least one refrigeration compartment 52 communicating with the refrigeration duct. The fan 60 and the evaporator 16 are respectively disposed in the refrigeration duct. The fan 60 is electrically connected to the controller 20, so that the fan 60 can blow the cold energy generated by the evaporator 16 into the refrigeration compartment 52.

[0068] It should be noted that the condenser is usually located at the back, side, or bottom of the cabinet 40 near the external environment of the refrigerator, so that the condenser can dissipate heat to the external environment where the refrigerator is located, thereby cooling the refrigerant in the refrigeration system 10. The evaporator 16 is usually located in the inner liner 50 near the refrigeration compartment 52 or inside the refrigeration compartment 52, so that the cold energy generated by the evaporator 16 can exchange heat with the refrigeration compartment 52, maintaining the low temperature environment of the refrigeration compartment 52 (e.g., less than -1°C).

[0069] The refrigeration compartment 52 includes multiple compartments such as a freezer compartment, a refrigerator compartment, and a variable temperature compartment, which are not limited in this disclosure. The inner liner 50 of the refrigerator may also be provided with a duct cover to separate the refrigeration duct from the refrigeration compartment 52. The duct cover has several through holes connecting the refrigeration duct and the refrigeration compartment 52 to form an air inlet and return outlet for the fan 60 to blow cold air. Thus, according to the user's refrigeration needs, after the refrigeration system 10 is started, it can adaptively select to operate one or more condensers based on the external ambient temperature and the compressor 11 speed, enabling the refrigerator to operate in an energy-saving second refrigeration mode (non-deep cooling mode) and a noise-reducing first refrigeration mode (deep cooling mode). Furthermore, the refrigeration system 10 may have one or more evaporators 16, and the fan 60 can blow the cold air generated by each evaporator 16 through the refrigeration duct and air inlet to various parts of the refrigeration compartment 52 to reduce the temperature inside the refrigeration compartment 52. Meanwhile, the fan 60 can also draw the gas that has exchanged heat with the cooling compartment 52 back into the cooling duct through the return air inlet, and then cool it again through the evaporator 16 to form a cycle and maintain the low temperature environment of the cooling compartment 52. Other structures of the refrigerator are not described in detail in this disclosure.

[0070] Understandably, the term "electrical connection" as used in this disclosure can be understood as a wired signal connection or a wireless signal connection. Wired signal connections include wire connections, fiber optic connections, or power line communication, while wireless signal connections include radio frequency signals, satellite communication, infrared communication, Bluetooth communication, short-range wireless communication technologies, etc. This disclosure does not impose any limitations.

[0071] The technical solutions or features described in the above embodiments can be combined or complemented by each other without conflict. The scope of this disclosure is not limited to the precise structures described in the above embodiments and shown in the accompanying drawings. All modifications, equivalent substitutions, and improvements made within the spirit and principles of this disclosure should be included within the scope of protection of this disclosure.

Claims

1. A refrigeration system, applied to refrigeration equipment, characterized in that, The refrigeration system comprises a compressor, a first switch connected with an outlet of the compressor, at least two condensers connected with the first switch, a throttling device connected with the at least two condensers, and an evaporator connected between the throttling device and an inlet of the compressor; The first switch can conduct at least two of the at least two condensers, and the first switch is configured to: In a first refrigeration mode, the first switch can conduct at least two of the at least two condensers; In a second refrigeration mode, the first switch can conduct one of the at least two condensers; The refrigeration temperature of the first refrigeration mode is lower than that of the second refrigeration mode.

2. The refrigeration system of claim 1, wherein, The at least two condensers comprise a first condenser connected between the first switch and the throttling device, and a second condenser connected between the first switch and the throttling device, and the heat dissipation area of the first condenser is greater than that of the second condenser.

3. The refrigeration system of claim 2, wherein, When the refrigeration device is at a first ambient temperature, the compressor is provided with a first rotation speed and a second rotation speed greater than the first rotation speed, and the first switch comprises a control valve configured to: In the first refrigeration mode, the compressor operates at a speed greater than the second rotation speed, and the first switch simultaneously conducts the first condenser and the second condenser; In the second refrigeration mode, when the compressor operates at a speed not greater than the first rotation speed, the first switch conducts the second condenser; when the compressor operates at a speed greater than the first rotation speed and not greater than the second rotation speed, the first switch conducts the first condenser.

4. The refrigeration system of claim 3, wherein, When the first ambient temperature setting is not greater than 20°C, the first rotation speed is set to 2000 rpm, and the second rotation speed is set to 3500 rpm; When the first ambient temperature setting is greater than 20°C and not greater than 35°C, the first rotation speed is set to 1500 rpm, and the second rotation speed is set to 3000 rpm.

5. The refrigeration system of claim 3 wherein, When the refrigeration device is at a second ambient temperature greater than the first ambient temperature, the compressor is further provided with a third rotation speed greater than the first rotation speed and less than the second rotation speed, and the control valve is configured to: In the first refrigeration mode, the compressor operates at a speed greater than the third rotation speed, and the first switch simultaneously conducts the first condenser and the second condenser; In the second refrigeration mode, the compressor operates at a speed not greater than the third rotation speed, and the first switch conducts the first condenser.

6. The refrigeration system of claim 5, wherein, The second ambient temperature setting is greater than 35°C, and the third rotation speed is set to 2500 rpm.

7. The refrigeration system of claim 1, wherein, The refrigeration system further comprises a drying filter connected between the at least two condensers and the throttling device.

8. The refrigeration system of claim 7, wherein, The evaporators are at least two, the throttings are arranged one by one with the evaporators, the refrigeration system further comprises a second switch, the second switch is communicated between the dry filter and each of the throttings, the second switch can conduct at least one of the at least two evaporators, so that the refrigerant output by the compressor exchanges heat through at least one of the at least two evaporators.

9. A refrigeration appliance characterized in that, The refrigeration system comprises a controller, an ambient temperature sensor and any one of claims 1 to 8; the ambient temperature sensor, the compressor and the first switch are respectively electrically connected with the controller.

10. The refrigeration appliance of claim 9, wherein, The refrigeration equipment further comprises a cabinet, an inner container and a fan, the compressor and the at least two condensers are respectively arranged between the cabinet and the inner container, the inner container is provided with a refrigeration air duct and at least one refrigeration room communicated with the refrigeration air duct, the fan and the evaporator are respectively arranged in the refrigeration air duct, and the fan is electrically connected with the controller, so that the fan can blow the cold produced by the evaporator into the refrigeration room.

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