Power supply system with wide input voltage and air conditioning unit

Abstract

The utility model discloses a power supply system with wide input voltage and an air conditioning unit, the power supply system with wide input voltage is applied to the air conditioning unit, the power supply system with wide input voltage comprises a power supply conversion module and a control loop, the input end of the power supply conversion module is connected with a power supply of the air conditioning unit, and the input end of the power supply conversion module is connected with the control loop. The power conversion module is used for converting a power supply into a preset direct-current power supply and outputting from the output end of the power conversion module; the input end of the control loop is connected with the output end of the power conversion module, and the output end of the control loop is connected with an electric device of the air conditioning unit so as to provide a preset direct-current power source for the electric device. Therefore, the power supply system with the wide input voltage can improve the compatibility of the air conditioning unit, reduce the production cost and facilitate the standardized processing of the air conditioning unit.

Description

Technical Field

[0001] The utility model relates to the technical field of power supply control, in particular to a power supply system with a wide input voltage and an air conditioning unit. Background Art

[0002] An isolation transformer is usually installed between the power supply system of the air conditioner and the mains to convert the mains into power suitable for the electrical components in the air conditioner. However, the mains in different countries are different. For example, the mains in Japan and the United States are 110V / 60Hz, while the mains in China and Europe are generally 220V / 50Hz. Therefore, the use of air conditioners is regional and has been greatly restricted in promotion.

[0003] In order to adapt to the mains electricity of different countries, the isolation transformer of the air-conditioning unit is specially modified in the related technology to adapt to different usage scenarios.

[0004] However, the related technology adopts this solution which is not conducive to standardization, greatly affects the production efficiency of the air-conditioning unit, and also increases the production cost considerably. Utility Model Content

[0005] The utility model aims to solve one of the technical problems in the related art at least to a certain extent. To this end, the first purpose of the utility model is to propose a power supply system with a wide input voltage, which can improve the compatibility of air-conditioning units, reduce production costs, and facilitate standardized processing of air-conditioning units.

[0006] The second objective of the present invention is to provide an air conditioning unit.

[0007] To achieve the above-mentioned purpose, the first aspect of the utility model proposes a power supply system with a wide input voltage, which is applied to an air-conditioning unit, and the power supply system includes: a power conversion module, the input end of the power conversion module is connected to the power supply of the air-conditioning unit, and is used to convert the power supply into a preset DC power supply and output it from the output end of the power conversion module; a control loop, the input end of the control loop is connected to the output end of the power conversion module, and the output end of the control loop is connected to the electrical components of the air-conditioning unit to provide the preset DC power supply to the electrical components.

[0008] In the embodiment of the utility model, the power supply system with a wide input voltage applied to the air-conditioning unit includes a power conversion module and a control circuit, wherein the input end of the power conversion module is connected to the power supply, and after conversion by the power conversion module, a preset DC power supply can be output at its output end, and the preset DC power supply is then provided to the control circuit connected to the output end, so that the control circuit can provide the preset DC power supply to the electrical components of the air-conditioning unit. Therefore, the power supply system with a wide input voltage in this embodiment can improve the compatibility of the air-conditioning unit, reduce production costs, and is conducive to the standardized processing of the air-conditioning unit.

[0009] In some examples of the present invention, the power supply of the air-conditioning unit is an independent power supply or a power supply of the air-conditioning unit.

[0010] In some examples of the present invention, the voltage range of the power supply is AC220V-AC480V.

[0011] In some examples of the present invention, the frequency range of the power supply is 50 Hz-60 Hz.

[0012] In some examples of the present invention, the voltage of the preset DC power supply is 24V or 12V.

[0013] In some examples of the present invention, the electrical components include sensors, actuators, solenoid valves, relays, displays, and a main controller of the air conditioning unit.

[0014] In some examples of the present invention, if the power consumption of the electrical device is greater than the preset power consumption, multiple power conversion modules are connected in parallel, and the output ends of the multiple power conversion modules are connected to the input ends of the control loop to increase the output power of the control loop.

[0015] In some examples of the present invention, the air conditioning unit further includes a communication line, and a power supply end of the communication line is connected to an output end of the control loop.

[0016] In some examples of the present invention, the communication line includes an RS485 communication bus.

[0017] To achieve the above-mentioned purpose, a second aspect of the present invention provides an air-conditioning unit, which includes a power supply system with a wide input voltage as described in any one of the above-mentioned embodiments.

[0018] The air-conditioning unit of the embodiment of the utility model can improve the compatibility of the air-conditioning unit, reduce the production cost, and facilitate the standardized processing of the air-conditioning unit through the power supply system with a wide input voltage in the above embodiment.

[0019] Additional aspects and advantages of the present invention will be given in part in the following description and in part will become apparent from the following description or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of a power supply system with a wide input voltage in an embodiment of the utility model;

[0021] Figure 2 It is a structural block diagram of an air conditioning unit in an embodiment of the utility model. DETAILED DESCRIPTION

[0022] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0023] The following describes the wide input voltage power supply system and air conditioning unit of the utility model with reference to the accompanying drawings.

[0024] Figure 1 It is a schematic diagram of a power supply system with a wide input voltage in an embodiment of the utility model.

[0025] like Figure 1 As shown, the utility model proposes a power supply system 10 with a wide input voltage applied to an air-conditioning unit. The power supply system 10 with a wide input voltage includes a power conversion module 11 and a control loop 12 .

[0026] Among them, the input end of the power conversion module 11 is connected to the power supply of the air-conditioning unit, and is used to convert the power supply into a preset DC power supply, and output it from the output end of the power conversion module 11; the input end of the control loop 12 is connected to the output end of the power conversion module 11, and the output end of the control loop 12 is connected to the electrical components of the air-conditioning unit to provide a preset DC power supply to the electrical components.

[0027] Specifically, in this embodiment, the power supply can be an independent power supply in the current environment of the air-conditioning unit, such as AC power, etc., and of course it can also be the power supply of the air-conditioning unit. The input end of the power conversion module 11 is connected to the power supply, and is used to convert the voltage, frequency and other information of the power supply, so that the preset DC power obtained after the conversion is provided to the control loop 12. After receiving the preset DC power supply, the control loop 12 can be controlled according to the needs of the electrical components in the air-conditioning unit so that the preset DC power supply can power the electrical components.

[0028] In some embodiments, the voltage range of the power supply is AC220V-AC480V, and the frequency range of the power supply is 50Hz-60Hz.

[0029] Specifically, the power supply in this embodiment may be the electricity used in different countries. In order to make the air-conditioning unit compatible with a variety of different types of power supplies, the power conversion module 11 can be set to a wide input voltage type, and can convert power supplies with a voltage range of AC220V-AC480V and a frequency range of 50Hz-60Hz, so that the converted power supply is a preset DC power supply. It can be understood that the power supply covers a very large range of AC220V-AC480V, and is compatible with different frequencies of 50Hz-60Hz, which is compatible with almost all electrical systems of the low-voltage system, has wide adaptability, and does not require secondary customized design for market demand, and has high versatility.

[0030] In some embodiments, the voltage of the preset DC power supply is 24V or 12V.

[0031] Specifically, in this embodiment, the voltage of the preset DC power supply can be 24V or 12V. The specific selection of 24V or 12V can be selected according to the needs of electrical devices. If all electrical devices are unified as DC24V, the preset DC power supply can be selected as 24V; if all electrical devices are unified as DC12V, the preset DC power supply can be selected as 12V.

[0032] It should be noted that, since some of the electrical components in the air-conditioning unit may be in contact with the user, the utility model sets the power supply of the electrical components to a preset DC power supply, and limits the preset DC power supply to safe voltages such as 24V or 12V, which will not cause harm to the user, greatly improving the user's safety. In the related art, some electrical components have 220V, which can easily cause electricity hazards to the user, making the air-conditioning unit unsafe.

[0033] In some embodiments, the electrical components include sensors, actuators, solenoid valves, relays, displays, and main controllers of the air conditioning unit. In this embodiment, if the power consumption of the electrical components is greater than the preset power consumption, multiple power conversion modules 11 are connected in parallel, and the output ends of the multiple power conversion modules 11 are connected to the input ends of the control loop 12 to increase the output power of the control loop 12.

[0034] Specifically, in this embodiment, the rated voltage of all electrical devices can be selected as DC24V. However, during the selection process, the power consumption of some electrical devices may be relatively high. If only the preset DC power supply is used for power supply, it will lead to insufficient power. Therefore, in this embodiment, multiple power conversion modules 11 can be set in parallel to increase the output power of the control loop 12 to ensure that the electrical devices can be used normally.

[0035] In some embodiments of the present invention, the air conditioning unit further comprises a communication circuit, the power supply end of the communication circuit is connected to the output end of the control loop, and in this embodiment, the communication circuit comprises an RS485 communication bus.

[0036] Specifically, during the use of the air conditioning unit, signal communication is required between the controllers so that the air conditioning unit can be operated accurately according to the user's requirements. During the communication between the controllers, an RS485 communication bus is provided to improve the quality of signal transmission. However, during the use of the RS485 communication bus, it may be affected by alternating current, for example, it may be interfered by AC220V. However, the utility model adopts a DC24V related circuit, which will not cause electromagnetic interference to the communication bus, or the electromagnetic interference caused is almost negligible, thereby further reducing the air volume of the related communication and improving reliability.

[0037] The utility model can greatly reduce the number and types of isolation transformers in the original control circuit power supply system by adopting the power conversion module 11. The power system of the electrical components in the control circuit is unified to DC24V or DC12V, which reduces the power system types, is conducive to the common use of components between different air-conditioning unit models, and is conducive to improving the degree of standardization.

[0038] In summary, the power supply system with a wide input voltage in the embodiment of the utility model can improve the compatibility of the air-conditioning unit, reduce the production cost, and is conducive to the standardized processing of the air-conditioning unit.

[0039] Figure 2 It is a structural block diagram of an air conditioning unit in an embodiment of the utility model.

[0040] Furthermore, if Figure 2 As shown, the utility model proposes an air conditioning unit 20, which includes the power supply system 10 with a wide input voltage in the above embodiment.

[0041] The air-conditioning unit of the embodiment of the utility model can improve the compatibility of the air-conditioning unit, reduce the production cost, and facilitate the standardized processing of the air-conditioning unit through the power supply system with a wide input voltage in the above embodiment.

[0042] In addition, other structures and functions of the air-conditioning unit in the embodiment of the utility model are known to those skilled in the art and will not be described in detail here to reduce redundancy.

[0043] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0044] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0045] In addition, the terms "first", "second", etc. used in the embodiments of the present invention are only used for descriptive purposes and should not be understood as indicating or implying relative importance, or implicitly indicating the number of technical features indicated in the embodiments. Therefore, the features defined by the terms "first", "second", etc. in the embodiments of the present invention can explicitly or implicitly indicate that the embodiment includes at least one of the features. In the description of the present invention, the word "multiple" means at least two or two or more, such as two, three, four, etc., unless otherwise clearly and specifically defined in the embodiments.

[0046] In the present utility model, unless otherwise clearly specified or limited in the embodiments, the terms "install", "connect", "connect" and "fix" etc. appearing in the embodiments should be understood in a broad sense. For example, the connection can be a fixed connection, a detachable connection, or an integrated connection. It can be understood that it can also be a mechanical connection, an electrical connection, etc.; of course, it can also be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal connection of two elements, or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to the specific implementation situation.

[0047] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0048] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A power supply system with a wide input voltage, characterized in that: Applied to an air conditioning unit, the power supply system comprises: A power conversion module, the input end of which is connected to the power supply of the air-conditioning unit, and is used to convert the power supply into a preset DC power supply and output it from the output end of the power conversion module; A control loop, wherein the input end of the control loop is connected to the output end of the power conversion module, and the output end of the control loop is connected to the electrical device of the air-conditioning unit to provide the preset DC power supply to the electrical device.

2. The power supply system according to claim 1, characterized in that: The power supply of the air-conditioning unit is an independent power supply or a power supply of the air-conditioning unit.

3. The power supply system according to claim 2, characterized in that: The voltage range of the power supply is AC220V-AC480V.

4. The power supply system according to claim 3, characterized in that: The frequency range of the power supply is 50 Hz-60 Hz.

5. The power supply system according to claim 1, characterized in that: The voltage of the preset DC power supply is 24V or 12V.

6. The power supply system according to claim 1, characterized in that: The electrical components include sensors, actuators, solenoid valves, relays, displays and a main controller of the air conditioning unit.

7. The power supply system according to claim 6, characterized in that: If the power consumption of the electrical device is greater than the preset power consumption, multiple power conversion modules are connected in parallel, and the output ends of the multiple power conversion modules are connected to the input end of the control loop to increase the output power of the control loop.

8. The power supply system according to any one of claims 1 to 7, characterized in that: The air conditioning unit further comprises a communication line, a power supply end of the communication line is connected to an output end of the control loop.

9. The power supply system according to claim 8, characterized in that: The communication line includes an RS485 communication bus.

10. An air conditioning unit, characterized in that: The air conditioning unit comprises the wide input voltage power supply system according to any one of claims 1-9.

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