Split type direct-current direct-entering rail air conditioning system

Abstract

The utility model discloses a split type direct-current direct-entering rail air conditioning system which comprises at least one set of air conditioning module and a power supply module, each set of air conditioning module comprises an evaporation unit and a condensation unit, the power supply module comprises a power supply processing unit, and the power supply processing unit is arranged in the evaporation unit or the condensation unit. The power supply processing unit is used for accessing direct current; the evaporation unit is electrically connected with the condensation unit, and the power processing unit is further used for providing direct current for the evaporation unit and the condensation unit. The power supply processing unit directly provides direct current for the evaporation unit and the condensation unit, so that the arrangement of an inverter is reduced, the space volume occupied by the inverter is saved, and the evaporation unit and the condensation unit can be mounted in scattered spaces of the vehicle in a scattered manner, so that the power supply processing unit is more convenient to use. Therefore, the available space volume, occupied by the split type air conditioner, of the vehicle can be saved.

Description

Technical Field

[0001] This utility model belongs to the field of split-type air conditioning technology, specifically, it relates to a split-type DC direct-flow rail air conditioning system. Background Technology

[0002] In some vehicles with strict space requirements, the available space for air conditioning is further limited, making it impossible to implement integrated air conditioning units due to their large size. Of course, to accommodate vehicles with limited space, the market has also introduced split-type air conditioning units. However, commonly used split-type air conditioning units require an inverter to convert the DC power from the vehicle into AC power usable by the split-type air conditioning unit before transmitting it to the unit.

[0003] Since split-type air conditioners divide the air conditioning system into multiple air conditioning sub-modules, such as evaporator units and condenser units, the number of inverters increases with the number of air conditioning sub-modules, making it difficult to apply current split-type air conditioners to vehicles with limited space. Utility Model Content

[0004] The technical problem to be solved by this application is to overcome the shortcomings of the prior art and provide a split-type DC direct-flow rail air conditioning system.

[0005] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted in this application is as follows:

[0006] A split-type DC direct-flow rail air conditioning system, comprising:

[0007] At least one set of air conditioning modules and power supply modules, each set of air conditioning modules including an evaporator unit and a condenser unit;

[0008] The power supply module includes a power processing unit, which is disposed in the evaporation unit or the condensation unit, and is used to connect to direct current.

[0009] The evaporation unit and the condensation unit are electrically connected, and the power processing unit is also used to provide the DC power to the evaporation unit and the condensation unit.

[0010] By adopting the above technical solution, the evaporator and condenser units are installed separately in the scattered spaces of the vehicle or other carrier, reducing the space occupied by the split air conditioner. At the same time, the power processing unit provides DC power to both the evaporator and condenser units, reducing the need for inverters and saving space occupied by inverters, further saving the usable space occupied by the split air conditioner in the vehicle or other carrier.

[0011] Optionally, the power processing unit includes an electrical switch and at least one filter, wherein the electrical switch and the filter are connected in series.

[0012] By adopting the above technical solutions, whether to provide direct current to the evaporation unit and the condensation unit is controlled by the electric switch, and the size of the direct current provided to the evaporation unit and the condensation unit is limited by the filter, so that the direct current provided to the evaporation unit and the condensation unit meets the power demand of the evaporation unit and the condensation unit.

[0013] Optionally, the power supply module further comprises a regulating unit, which is arranged at the power supply end of the evaporation unit and the condensation unit.

[0014] Optionally, the regulating unit comprises a first frequency converter and a second frequency converter.

[0015] The first frequency converter is arranged at the power supply end of the evaporation unit, and the second frequency converter is arranged at the power supply end of the condensation unit.

[0016] By adopting the above technical solutions, the first frequency converter is arranged for the evaporation unit, the power frequency of the ventilator in the evaporation unit is further regulated by the first frequency converter, the direct current provided to the evaporation unit meets the power demand of the evaporation unit, the second frequency converter is arranged for the condensation unit, the power frequency of the condensation fan and the compressor in the condensation unit is further regulated by the second frequency converter, and the direct current provided to the condensation unit meets the power demand of the condensation unit. Therefore, the direct current can be directly provided for the evaporation unit and the condensation unit, the inverter is reduced, and the space volume occupied by the inverter is saved.

[0017] Optionally, the main control module comprises an air conditioner control unit and a detection expansion board, the air conditioner control unit is arranged in the evaporation unit, and the detection expansion board is arranged in the condensation unit.

[0018] By adopting the above technical solutions, the air conditioner control unit is arranged in the evaporation unit, the air conditioner control unit controls the action of the internal components of the evaporation unit and the sensor detection, the detection expansion board is arranged in the condensation unit, the detection expansion board controls the action of the internal components of the condensation unit and the sensor detection, the number of data transmission lines arranged between the evaporation unit and the condensation unit is reduced, and the split type air conditioner is more conducive to being installed on a vehicle with limited available space.

[0019] Optionally, the air conditioner control unit and the detection expansion board are connected in communication through a wired or wireless connection mode.

[0020] Optionally, the gateway is connected in communication with the air conditioner control unit or the detection expansion board through a wired connection mode.

[0021] Optionally, the power supply module further comprises a support capacitor.

[0022] When the power processing unit is arranged in the condensing unit, the support capacitor is arranged on the power supply end of the evaporating unit.

[0023] When the power processing unit is arranged in the condensing unit, the support capacitor is arranged on the power supply end of the evaporating unit.

[0024] By adopting the technical scheme, when the power processing unit is arranged in the evaporating unit, in order to prevent the voltage provided for the condensing unit from being pulled down when the second frequency converter is started due to the excessively long electric wire, the support capacitor is arranged in the condensing unit, the direct current entering the condensing unit is uniformly transmitted to the second frequency converter after being stabilized by the support capacitor, and the second frequency converter is controlled to provide the devices in the condensing unit. When the power processing unit is arranged in the condensing unit, in order to prevent the voltage provided for the evaporating unit from being pulled down when the first frequency converter is started due to the excessively long electric wire, the support capacitor is arranged in the evaporating unit, the direct current entering the evaporating unit is transmitted to the first frequency converter after being stabilized by the support capacitor, and the first frequency converter is controlled to provide the devices in the evaporating unit.

[0025] Compared with the prior art, the application has the following beneficial effects.

[0026] 1. The evaporating unit and the condensing unit are installed in the scattered space of the vehicle or other carriers, so that the space occupation volume of the split air conditioner is reduced.

[0027] 2. The power processing unit uniformly provides the direct current for the evaporating unit and the condensing unit, the inverter is reduced, and the available space of the vehicle or other carriers occupied by the split air conditioner is further saved.

[0028] 3. The air conditioner control unit is arranged in the evaporating unit, the air conditioner control unit controls the communication inside the evaporating unit, the detection expansion board is arranged in the condensing unit, the detection expansion board controls the communication inside the condensing unit, the number of data transmission lines arranged between the evaporating unit and the condensing unit is reduced, and the installation on the vehicle with limited available space is more favorable.

[0029] The specific embodiments of the application will be described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0030] The accompanying drawings, which are part of the present application, serve to further understand the present application, the schematic embodiments of the present application and the descriptions thereof serve to explain the present application, but do not constitute improper limitations on the present application. Obviously, the accompanying drawings described below are only some embodiments, and other drawings can be obtained by those skilled in the art without creating laborious work. In the drawings:

[0031] Figure 1 is an electrical connection schematic diagram of a split type direct current direct drive rail air conditioning system of embodiment 1 of the present application;

[0032] Figure 2 is a communication connection schematic diagram of a split type direct current direct drive rail air conditioning system of embodiment 1 of the present application;

[0033] Figure 3 is an electrical connection schematic diagram of a split type direct current direct drive rail air conditioning system of embodiment 2 of the present application.

[0034] In the figure: 1, evaporating unit; 2, condensing unit; 3, power supply processing unit; 4, first frequency converter; 5, second frequency converter; 6, support capacitor; 7, air conditioner control unit; 8, detection expansion board; 9, gateway.

[0035] It should be noted that these drawings and written descriptions are not intended to limit the scope of the concept of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme in the embodiments will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. The following embodiments are used to illustrate the present application, but not to limit the scope of the present application.

[0037] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms “mounting”, “connection” and “connection” should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0038] Embodiment 1

[0039] As shown in Figures 1 to 2 , the present application provides a split type direct current direct drive rail air conditioning system, which comprises at least one set of air conditioning module and power supply module. The power supply module can provide direct current for one set or multiple sets of air conditioning modules, and the direct current is derived from the vehicle-mounted power supply. When the split type air conditioner is installed on other carriers, such as unmanned aerial vehicles or manned aircrafts and other space-limited carriers, the direct current is derived from the direct current power supply on the carrier.

[0040] In one specific example, each group of air conditioning modules includes an evaporating unit 1 and a condensing unit 2, both of which are installed in a scattered space on the vehicle as independent units in a fixed or detachable manner, such as screw connection, or in an integrated or adhesive manner.

[0041] Specifically, the evaporating unit 1 includes a ventilator and other components used in cooperation with the ventilator, and is mainly used as an indoor unit to provide cold air to achieve the effect of refrigeration. It should be noted that the ventilator and other components used in cooperation with the ventilator used in this example are all original devices in the evaporating unit 1, such as the electronic expansion valve, air valve, etc.

[0042] Similarly, the condensing unit 2 includes a compressor, a condensing fan, and other components used in cooperation with the compressor and the condensing fan, and is used as an outdoor unit to exchange heat between the vehicle and the outside environment and discharge heat outside the vehicle. In this example, the compressor, the condensing fan, and other components used in cooperation with the compressor and the condensing fan are also all original devices in the condensing unit 2, such as pressure switches, pressure sensors, etc.

[0043] The power supply module includes a power supply processing unit 3 and a control unit, and the power supply processing unit 3 is arranged in the evaporating unit 1. The power supply processing unit 3 is used to access the vehicle power supply, which is a direct current with a voltage range of DC 600V-1500V. The direct current is processed by the control unit and then enters the loads such as the ventilator, the compressor, and the condensing fan. Specifically, the power supply processing unit 3 is electrically connected to the ventilator, the compressor, and the condensing fan through wires, and the control unit is connected in series to the wires connecting the power supply processing unit 3 to the ventilator, the compressor, and the condensing fan.

[0044] Among them, the power supply processing unit 3 is composed of an electric switch and at least one filter in series. The electric switch is used to realize the on-off control of the direct current, and the filter is used to filter the direct current. It can also be considered that one or more filters form a current limiting circuit, which can filter out the direct current that does not meet the use of the evaporating unit 1 and the condensing unit 2.

[0045] The regulating unit comprises a first frequency converter 4 and a second frequency converter 5, the first frequency converter 4 is arranged in the evaporating unit 1, and the second frequency converter 5 is arranged in the condensing unit 2, specifically, the first frequency converter 4 is arranged at the power supply end of the ventilator, and the direct current provided to the ventilator is controlled by the first frequency converter 4. The second frequency converter 5 in the condensing unit 2 is provided with two, one of which is arranged at the power supply end of the compressor, and the other is arranged at the power supply end of the condensing fan, and the direct current provided to the compressor and the condensing fan is controlled by the second frequency converter 5.

[0046] In order to prevent the voltage provided to the condensing unit 2 from being pulled down when the second frequency converter 5 starts due to the excessively long wire, a support capacitor 6 is arranged in the condensing unit 2, the direct current entering the condensing unit 2 is uniformly transmitted to different second frequency converters 5 after being stabilized by the support capacitor 6, and then is provided to the compressor and the condensing fan after being regulated by the different second frequency converters 5.

[0047] In addition, in order to reduce the cable deployed between the evaporating unit 1 and the condensing unit 2, the application also provides a master control module, which comprises an air conditioner control unit 7 and a detection expansion board 8, the air conditioner control unit 7 is arranged in the evaporating unit 1 and is connected with the electronic devices inside the evaporating unit 1 in communication through an RS485 communication bus, such as being connected with the first frequency converter 4, a temperature sensor and other sensors. In this example, the air conditioner control unit 7 is a circuit board or a control chip with control function, such as an MCU or a DSP chip. The detection expansion board 8 is arranged in the condensing unit 2 and is connected with the electronic devices inside the condensing unit 2 in communication through an RS485 communication bus, such as being connected with the second frequency converter 5, a pressure switch, a pressure sensor, a temperature sensor and other electronic devices. Similar to the air conditioner control unit 7, the detection expansion board 8 is a circuit board or a control chip with control function, such as an MCU or a DSP chip.

[0048] The air conditioner control unit 7 and the detection expansion board 8 are connected in communication through wired or wireless connection mode, the wired communication connection mode is, for example, wire or optical fiber, Figure 2 indicated by a solid line; the wireless communication connection mode is, for example, radio frequency technology or Bluetooth technology, Figure 2 indicated by a dashed line. In actual use, an appropriate connection mode can be selected according to needs.

[0049] In order to facilitate data interaction with the control system of the vehicle, a gateway 9 is arranged in the evaporative unit 1, the air conditioner control unit 7 is connected with the gateway 9 through the RS485 communication bus, and the gateway 9 is connected with the control system of the vehicle through the wire, so as to transmit the data on the evaporative unit 1 and the condensing unit 2 to the control system of the vehicle or to the cloud through the gateway 9. Of course, the gateway 9 can also be arranged in the condensing unit 2, the detection expansion board 8 is connected with the gateway 9 through the RS485 communication bus, and the gateway 9 is connected with the control system of the vehicle through the wire, and the specific connection mode is not limited in the application, and the length of the data transmission line arranged is saved as the criterion.

[0050] In summary, the implementation principle of the split type direct current direct access rail air conditioning system in the embodiment 1 is that the power processing unit 3 is connected with the direct current, the direct current is transmitted to the ventilator of the evaporative unit 1 after being processed by the first frequency converter 4, the ventilator is powered on to start the work of the evaporative unit 1, and the direct current is transmitted to the compressor and the condensing fan after being processed by the second frequency converter 5, and the condensing unit 2 starts to work after the compressor and the condensing fan are powered on. This power supply mode that the evaporative unit 1 and the condensing unit 2 are installed separately but share one power processing unit 3 realizes the installation in the scattered space of the vehicle, reduces the circuit wiring, saves the occupied space volume of the vehicle, and is more suitable for the vehicle with limited available space. In addition, the air conditioner control unit 7 is arranged in the evaporative unit 1, the air conditioner control unit 7 controls the communication in the evaporative unit 1, the detection expansion board 8 is arranged in the condensing unit 2, the detection expansion board 8 controls the communication in the condensing unit 2, the number of data transmission lines arranged between the evaporative unit 1 and the condensing unit 2 is reduced, and it is more conducive to installation on the vehicle with limited available space.

[0051] Embodiment 2

[0052] The difference between the embodiment 2 and the embodiment 1 is that the power processing unit 3 is installed in the condensing unit 2, the direct current is connected with the power processing unit 3 located in the condensing unit 2, and the specific connection mode is shown in Figure 3 At this time, in order to prevent the voltage provided for the evaporative unit 1 from being pulled down when the first frequency converter 4 is started due to the too long wire, the support capacitor 6 is arranged in the evaporative unit 1, the direct current entering the evaporative unit 1 is transmitted to the first frequency converter 4 after being stabilized by the support capacitor 6, and the direct current is provided to the ventilator after being regulated by the first frequency converter 4.

[0053] In summary, the implementation principle of the split type direct current direct access rail air conditioning system of the embodiment 2 of the present application is as follows: the power processing unit 3 is connected to the direct current, the direct current is transmitted to the compressor and the condenser fan after being processed by the second frequency converter 5, the condenser unit 2 starts to work after the compressor and the condenser fan are powered on; the direct current is also transmitted to the ventilator of the evaporating unit 1 after being processed by the first frequency converter 4, the evaporating unit 1 starts to work after the ventilator is powered on. The power supply mode that the evaporating unit 1 and the condensing unit 2 are installed separately but share one power processing unit 3, realizes the installation in the scattered space of the vehicle, reduces the circuit wiring, saves the occupied space volume of the vehicle, and is more suitable for the vehicle with limited available space. In addition, the air conditioning control unit 7 is arranged in the evaporating unit 1, the air conditioning control unit 7 controls the communication inside the evaporating unit 1; the detection expansion board 8 is arranged in the condensing unit 2, the detection expansion board 8 controls the communication inside the condensing unit 2, the number of data transmission lines arranged between the evaporating unit 1 and the condensing unit 2 is reduced, and it is more conducive to installation on the vehicle with limited available space.

[0054] The above is only the preferred embodiment of the present application, and does not limit the present application in any form. Although the preferred embodiment has been disclosed as above, it is not intended to limit the present application, and any person skilled in the art can make some changes or modifications to the above-mentioned technical content without departing from the scope of the technical solution of the present application, and the equivalent embodiments with equivalent changes are equivalent. The implementation schemes in the above embodiments can be further combined or replaced, but as long as it does not deviate from the technical solution of the present application, any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the present application are still within the scope of the present application.

Claims

1. A split type direct current direct run rail air conditioning system, characterized in that, The application relates to an air conditioner, comprising: at least one set of air conditioner modules and power supply modules, each set of air conditioner modules comprising an evaporating unit (1) and a condensing unit (2); the power supply module comprises a power supply processing unit (3) arranged in the evaporating unit (1) or the condensing unit (2), the power supply processing unit (3) being used for accessing direct current; the evaporating unit (1) and the condensing unit (2) are electrically connected, and the power supply processing unit (3) is further used for providing the direct current for the evaporating unit (1) and the condensing unit (2).

2. The split type DC linear induction rail air conditioning system according to claim 1, wherein The power supply processing unit (3) comprises an electric switch and at least one filter, and the electric switch and the filter are connected in series.

3. The split DC direct-run rail air conditioning system according to any one of claims 1-2, characterized in that, The power supply module further comprises a regulating unit arranged on the power supply end of the evaporating unit (1) and the condensing unit (2).

4. The split DC direct-run rail air conditioning system according to claim 3, characterized in that, The regulating unit comprises a first frequency converter (4) and a second frequency converter (5); the first frequency converter (4) is arranged on the power supply end of the evaporating unit (1), and the second frequency converter (5) is arranged on the power supply end of the condensing unit (2).

5. The split DC direct-run rail air conditioning system according to claim 3, wherein, The application further comprises a master control module, the master control module comprising an air conditioner control unit (7) and a detection expansion board (8), the air conditioner control unit (7) being arranged in the evaporating unit (1), and the detection expansion board (8) being arranged in the condensing unit (2).

6. The split DC direct-run rail air conditioning system according to claim 5, wherein, The air conditioner control unit (7) and the detection expansion board (8) are communicatively connected through wired or wireless connection modes.

7. The split DC direct-run rail air conditioning system according to claim 5, wherein, The application further comprises a gateway (9), the gateway (9) being communicatively connected with the air conditioner control unit (7) or the detection expansion board (8) through a wired connection mode.

8. The split DC direct-run rail air conditioning system, as recited in claim 1, characterized in that, The power supply module further comprises a support capacitor (6); when the power supply processing unit (3) is arranged in the evaporating unit (1), the support capacitor (6) is arranged on the power supply end of the condensing unit (2); when the power supply processing unit (3) is arranged in the condensing unit (2), the support capacitor (6) is arranged on the power supply end of the evaporating unit (1).

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