CN107433834B - High-voltage direct-current driven temperature regulating system - Google Patents
High-voltage direct-current driven temperature regulating system Download PDFInfo
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- CN107433834B CN107433834B CN201710416085.5A CN201710416085A CN107433834B CN 107433834 B CN107433834 B CN 107433834B CN 201710416085 A CN201710416085 A CN 201710416085A CN 107433834 B CN107433834 B CN 107433834B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00007—Combined heating, ventilating, or cooling devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
- B60H1/00735—Control systems or circuits characterised by their input, i.e. by the detection, measurement or calculation of particular conditions, e.g. signal treatment, dynamic models
- B60H1/00792—Arrangement of detectors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
- B60H1/00814—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation
- B60H1/00821—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation the components being ventilating, air admitting or air distributing devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
- B60H1/00814—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation
- B60H1/00878—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation the components being temperature regulating devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/03—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for supply of electrical power to vehicle subsystems or for
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/88—Optimized components or subsystems, e.g. lighting, actively controlled glasses
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- Air-Conditioning For Vehicles (AREA)
- Air Conditioning Control Device (AREA)
Abstract
In order to avoid frequent start and stop of electric components for driving and realize the driving stability of a temperature control environment, the invention provides a high-voltage direct current driven temperature regulating system which comprises a power supply and distribution system, 2 cab air conditioning units and 1 heat preservation cabin air conditioning unit, wherein the air conditioning units are all of a full-return-air integral structure, and a high-voltage direct current power supply of the power supply and distribution system adopts high-voltage direct current input in the driving and standby processes so as to improve the reliability of the air conditioning units. The temperature regulating system provided by the invention reduces two heat exchangers for driving and standby, reduces the volume and weight of the air conditioning unit, adopts a cold-hot integrated full-return-air self-adaptive temperature and humidity control technology, realizes good temperature field stability and high temperature and humidity control precision by adjusting air quantity, output power of a high-pressure drive compressor, electric heating grading adjustment and temperature and humidity automatic adjustment, avoids frequent start and stop of electric components, and is efficient and energy-saving.
Description
Technical Field
The invention relates to the technical field of temperature and humidity environment guarantee, in particular to a high-voltage direct-current driven temperature regulating system.
Background
On the one hand, the conventional temperature regulating system mostly adopts a mode of combining chassis driving and alternating current motor driving in the driving process, two technical states of driving and standby exist in the period, and the switching is required in the use process. On the other hand, the design of the air conditioning unit has two heat exchangers of running and standby in the heat exchanger.
Therefore, the conventional temperature adjusting system is large in size and inconvenient to use. This makes it expensive to manufacture and maintain. When the temperature is higher or lower, the refrigeration/heating electrical components of the temperature regulating system can be frequently switched, and the service life of the electrical components is adversely affected. Moreover, the temperature regulating system causes frequent starting of the equipment in the process of driving switching, and the comfort of personnel is reduced.
Disclosure of Invention
In order to overcome the defects in the prior art, avoid frequent starting and stopping of driving electric components and realize the driving stability of a temperature control environment, the invention provides a high-voltage direct current driven temperature regulating system which comprises a power supply and distribution system, 2 cab air conditioning units and 1 heat preservation cabin air conditioning unit, wherein the air conditioning units are all of a full-return-air integral structure, and a high-voltage direct current power supply of the power supply and distribution system adopts high-voltage direct current input in the driving and standby processes so as to improve the reliability of the air conditioning units.
Further, the whole return air integral structure is as follows: the air conditioning unit is characterized in that the internal pipeline of the air conditioning unit is integrally welded except for the fact that a compressor joint adopts double-O-shaped sealing rings for radial sealing, a hard pipe is fixed with a pipe clamp, the air conditioning unit adopts an internal compressor, the internal compressor adopts high-voltage direct current power supply and a high-voltage direct current drive compressor for compression and refrigeration, and a refrigerant pipeline is not arranged outside the air conditioning unit.
Further, the cab air conditioning unit comprises a left cab unit, a right cab unit, a heat preservation cabin unit, a cab control cabinet, a heat preservation cabin control cabinet, a cab air conditioning I, a cab air conditioning II, a heat preservation cabin air conditioner, a cab air conditioning display and control box, a heat preservation cabin air return temperature and humidity sensor, an ambient temperature sensor, and a cab air return temperature and humidity sensor, a cab temperature regulation controller, a heat preservation cabin air return temperature and humidity sensor and an ambient temperature sensor which are sequentially connected in series, wherein the cab air conditioning I and the cab air conditioning II respectively comprise an electric heating unit, a condensing fan, a circulating fan and a compressor, the heat preservation cabin air conditioner comprises a compressor, a circulating fan, a condensing fan, an electric heating I unit and an electric heating II unit, the cab control cabinet is electrically connected with the cab air conditioning I and the cab air conditioning II, the heat preservation control cabinet is electrically connected with the heat preservation cabin air conditioner, the power supply and distribution system is that the cab control cabinet and the heat preservation cabin control cabinet provide high-voltage direct-current electric power, the cab air conditioner display and control box is connected with the cab air conditioner display and control box, the heat preservation cabin air conditioner display and control box is connected with the heat preservation cabin temperature regulation controller, the heat preservation cabin return air temperature and humidity sensor and the environment temperature sensor are connected with the heat preservation cabin temperature regulation controller, the cab temperature regulation controller is connected with the cab control cabinet, the heat preservation cabin temperature regulation controller is connected with the heat preservation cabin control cabinet, the cab control cabinet comprises a cab left unit electric cabinet and a cab right unit electric cabinet, the heat preservation cabin control cabinet comprises a heat preservation cabin unit electric cabinet, the cab left unit and the cab right unit all comprise a shell, a high-voltage direct-current motor compressor and a high-voltage, The system comprises an evaporator, a circulating fan, a condenser, a condensing fan, a drying liquid storage device, an expansion valve and an electric cabinet, wherein the circulating fan is used for regulating the speed through a high gear, a middle gear and a low gear;
based on a DC520V direct current bus respectively connected with the power supply and distribution system, the cab control cabinet and the heat preservation cabin control cabinet, the left cab unit outputs 6 switching value output signals and 1 PWM output signal to the left cab unit electric cabinet, the right cab unit inputs 16 switching value input signals, 2 analog value input signals and cab air conditioner display control box communication signals to the right cab unit electric cabinet, the left cab unit electric cabinet inputs 6 switching value input signals and 1 analog value input signal to the left cab unit, the right cab unit electric cabinet outputs a vehicle control system CAN communication signal, 14 switching value output signals and 2 analog value output signals to the right cab unit, and the heat preservation cabin unit electric cabinet outputs 9 switching value output signals, 9 PWM output signals to the heat preservation cabin unit, The control system comprises 1 PWM output signal and a CAN communication signal of a vehicle control system, wherein a heat preservation cabin unit inputs a heat preservation cabin display control box communication signal, 9 switching value input signals and 3 analog value input signals to an electric cabinet of the heat preservation cabin unit, the electric cabinet of a left unit of a cab also controls a first condensing fan, a first circulating fan, a first electric heater, a first electric heating protection unit, a first compressor, a first DC/DC power converter and a second filtering unit of a cab air conditioner I, and acquires a first DC fault signal from the cab air conditioner I; the right unit electric cabinet of the cab controls a second electric heating protection unit, a second electric heater, a second circulating fan, a second condensing fan, a second compressor, a second DC/DC power converter and a fourth filtering unit of the air conditioner II of the cab, obtains a second high-low voltage protection signal from the air conditioner II of the cab and also receives a signal detected by a return air temperature and humidity sensor of the cab; the electric cabinet of the heat preservation cabin unit controls a first electric heater, a second electric heater, a third electric heater, a circulating fan, a condensing fan, a compressor, a sixth filtering unit, a third DC/DC power converter and a compressor PWM control unit of the heat preservation cabin air conditioner, obtains a third DC fault signal, an electric heating protection signal and a high-low voltage protection signal from the heat preservation cabin air conditioner, and also receives a signal detected by a heat preservation cabin temperature and humidity sensor and a signal detected by an environment temperature sensor;
the electric control box of the left unit of the cab further comprises a first filter, the electric control box of the right unit of the cab further comprises a third filter, the electric control box of the heat preservation cabin unit further comprises a fifth filter, and the first filter, the third filter and the fifth filter a high-voltage direct current power supply input end of the power supply and distribution system and then respectively drive a high-voltage direct current motor compressor of an air conditioner of the cab and the heat preservation cabin; then the second filter, the fourth filter and the sixth filter are used for filtering; and then, reducing the high-voltage direct-current power supply of the power supply and distribution system to a second direct-current voltage through the first DC/DC power converter, the second DC/DC power converter and the third DC/DC power converter so as to respectively drive a circulating fan, a condensing fan and a PTC electric heater of an air conditioner of a cab and a heat preservation cabin to work.
Furthermore, the refrigerant is an environment-friendly refrigerant with high critical temperature and low working pressure.
Further, the environment-friendly refrigerant is R134 a.
Further, the voltage provided by the high-voltage direct current power supply is DC 450V-DC 590V.
Further, the air conditioning unit adopts a high-voltage direct current PTC ceramic electric heater.
Furthermore, the high-voltage direct-current power supply of the power supply and distribution system is used for supplying power for the load equipment of the air conditioning unit of the cab and the load equipment of the air conditioning unit of the heat preservation cabin.
Furthermore, each controller adopts an MCU of an ARM core as a main control chip.
Further, a driving module in the compressor controls the speed regulation of the compressor through a PWM signal and adopts low-frequency starting.
The control system of the invention has the following beneficial effects:
(1) the temperature regulating system is firstly integrated into high-voltage direct-current drive in a driving mode, the switching between a driving state and a standby state does not exist, two heat exchangers for driving and standby are reduced in the air conditioning unit, the size and the weight of the air conditioning unit are reduced, the comfort of a temperature control environment is realized, and the high efficiency and the energy conservation are realized;
(2) by adopting a cold-hot integrated full-return-air self-adaptive temperature and humidity control technology, good stability of a temperature field and high temperature and humidity control precision are realized by adjusting air quantity, output power of a high-pressure drive compressor, electric heating grading adjustment and temperature and humidity automatic adjustment, frequent starting and stopping of electrical components are avoided, and stable operation of a temperature adjusting system is realized;
(3) the power supply system can adapt to various primary power supply modes without power switching between driving and standby;
(4) the temperature and humidity of the outside can be adapted to change, and different cold and heat quantities can be output; temperature and humidity control precision is high, has avoided electric components to open frequently and has stopped, has prolonged system life.
(5) The designed service life of the product is not less than 10 years.
Drawings
Fig. 1 shows a block diagram of the composition of the drive control system of the present invention.
Fig. 2 shows a control flow diagram of the control system according to the invention.
Fig. 3 shows a layout of a cab air conditioner according to the present invention.
Detailed Description
The technical scheme of the invention is explained in the following with the accompanying drawings.
The high-voltage direct-current driven temperature regulating system shown in fig. 1 comprises a power supply and distribution system, 2 cab air conditioning units and 1 heat preservation cabin air conditioning unit, wherein the air conditioning units are all of a full-return-air integral structure, and high-voltage direct current power supplies of the power supply and distribution system are all input by high-voltage direct current in the driving and standby processes, so that the reliability of the air conditioning units is improved.
The whole return air integral structure is as follows: the air conditioning unit is characterized in that the internal pipeline of the air conditioning unit is integrally welded except for the fact that a compressor joint adopts double-O-shaped sealing rings for radial sealing, a hard pipe is fixed with a pipe clamp, the air conditioning unit adopts an internal compressor, the internal compressor adopts high-voltage direct current power supply and a high-voltage direct current drive compressor for compression and refrigeration, and a refrigerant pipeline is not arranged outside the air conditioning unit.
The cab air conditioning unit comprises a left cab unit, a right cab unit, a heat preservation cabin unit, a control cabinet of the cab, a control cabinet of the heat preservation cabin, a first air conditioner of the cab, a second air conditioner of the cab, a air conditioner of the heat preservation cabin, a display and control box of the air conditioner of the heat preservation cabin, a return air temperature and humidity sensor of the heat preservation cabin, an environment temperature sensor, and a return air temperature and humidity sensor of the cab, a temperature controller of the heat preservation cabin, a return air temperature and humidity sensor of the heat preservation cabin and an environment temperature sensor which are sequentially connected in series, wherein the first air conditioner of the cab and the second air conditioner of the cab comprise an electric heating unit, a condensing fan, a circulating fan and a compressor, the air conditioner of the heat preservation cabin comprises a compressor, a circulating fan, a condensing fan, an electric heating I unit and an electric heating II unit, the control cabinet of the cab is electrically, the heat preservation control cabinet is electrically connected with the heat preservation cabin air conditioner, the power supply and distribution system is that the cab control cabinet and the heat preservation cabin control cabinet provide high-voltage direct-current electric power, the cab air conditioner display and control box is connected with the cab air conditioner display and control box, the heat preservation cabin air conditioner display and control box is connected with the heat preservation cabin temperature regulation controller, the heat preservation cabin return air temperature and humidity sensor and the environment temperature sensor are connected with the heat preservation cabin temperature regulation controller, the cab temperature regulation controller is connected with the cab control cabinet, the heat preservation cabin temperature regulation controller is connected with the heat preservation cabin control cabinet, the cab control cabinet comprises a cab left unit electric cabinet and a cab right unit electric cabinet, the heat preservation cabin control cabinet comprises a heat preservation cabin unit electric cabinet, the cab left unit and the cab right unit all comprise a shell, a high-voltage direct-current motor compressor and a high-voltage, The system comprises an evaporator, a circulating fan, a condenser, a condensing fan, a drying liquid storage device, an expansion valve and an electric cabinet, wherein the circulating fan is used for regulating the speed through a high gear, a middle gear and a low gear;
based on a DC520V direct current bus respectively connected with the power supply and distribution system, the cab control cabinet and the heat preservation cabin control cabinet, the left cab unit outputs 6 switching value output signals and 1 PWM output signal to the left cab unit electric cabinet, the right cab unit inputs 16 switching value input signals, 2 analog value input signals and cab air conditioner display control box communication signals to the right cab unit electric cabinet, the left cab unit electric cabinet inputs 6 switching value input signals and 1 analog value input signal to the left cab unit, the right cab unit electric cabinet outputs a vehicle control system CAN communication signal, 14 switching value output signals and 2 analog value output signals to the right cab unit, and the heat preservation cabin unit electric cabinet outputs 9 switching value output signals, 9 PWM output signals to the heat preservation cabin unit, The control system comprises 1 PWM output signal and a CAN communication signal of a vehicle control system, wherein a heat preservation cabin unit inputs a heat preservation cabin display control box communication signal, 9 switching value input signals and 3 analog value input signals to an electric cabinet of the heat preservation cabin unit, the electric cabinet of a left unit of a cab also controls a first condensing fan, a first circulating fan, a first electric heater, a first electric heating protection unit, a first compressor, a first DC/DC power converter and a second filtering unit of a cab air conditioner I, and acquires a first DC fault signal from the cab air conditioner I; the right unit electric cabinet of the cab controls a second electric heating protection unit, a second electric heater, a second circulating fan, a second condensing fan, a second compressor, a second DC/DC power converter and a fourth filtering unit of the air conditioner II of the cab, obtains a second high-low voltage protection signal from the air conditioner II of the cab and also receives a signal detected by a return air temperature and humidity sensor of the cab; the electric cabinet of the heat preservation cabin unit controls a first electric heater, a second electric heater, a third electric heater, a circulating fan, a condensing fan, a compressor, a sixth filtering unit, a third DC/DC power converter and a compressor PWM control unit of the heat preservation cabin air conditioner, obtains a third DC fault signal, an electric heating protection signal and a high-low voltage protection signal from the heat preservation cabin air conditioner, and also receives a signal detected by a heat preservation cabin temperature and humidity sensor and a signal detected by an environment temperature sensor;
the electric control box of the left unit of the cab further comprises a first filter, the electric control box of the right unit of the cab further comprises a third filter, the electric control box of the heat preservation cabin unit further comprises a fifth filter, and the first filter, the third filter and the fifth filter a high-voltage direct current power supply input end of the power supply and distribution system and then respectively drive a high-voltage direct current motor compressor of an air conditioner of the cab and the heat preservation cabin; then the second filter, the fourth filter and the sixth filter are used for filtering; and then, reducing the high-voltage direct-current power supply of the power supply and distribution system to a second direct-current voltage through the first DC/DC power converter, the second DC/DC power converter and the third DC/DC power converter so as to respectively drive a circulating fan, a condensing fan and a PTC electric heater of an air conditioner of a cab and a heat preservation cabin to work.
The refrigerant is an environment-friendly refrigerant with high critical temperature and low working pressure.
The environment-friendly refrigerant is R134 a.
The voltage provided by the high-voltage direct current power supply is DC 450V-DC 590V, and the voltage input by the high-voltage direct current power supply to the cab control cabinet and the thermal insulation cabin control cabinet in the embodiment of fig. 1-2 is preferably DC (direct current) 520V.
The air conditioning unit adopts a high-voltage direct current PTC ceramic electric heater.
And the high-voltage direct-current power supply of the power supply and distribution system is used for supplying power to the load equipment of the air conditioning unit of the cab and the load equipment of the air conditioning unit of the heat preservation cabin.
And each controller adopts an MCU of an ARM core as a main control chip.
And the driving module in the compressor controls the speed regulation of the compressor through a PWM signal and adopts low-frequency starting.
In the embodiment shown in fig. 1-2, the temperature regulation system adopts a cold-hot integrated total return air self-adaptive temperature and humidity control technology, and the coupling analysis of the environment temperature and humidity and the flow field temperature and humidity is carried out; the temperature field stability is good, the temperature and humidity control precision is high by combining air volume regulation, compressor output power regulation, electric heating grading regulation and temperature and humidity automatic regulation, frequent starting and stopping of electrical components are avoided, the service life of a system is prolonged, the energy efficiency ratio is optimal, and the workload of personnel is minimum.
The temperature adjusting system consists of 2 cab air conditioners and 1 heat preservation cabin air conditioner. The 3 air conditioning units all adopt a full-return-air integral structure, and no refrigerant pipeline is arranged outside the units, so that the hidden danger of refrigerant leakage of the vehicle-mounted air conditioner is reduced; the internal pipelines of the unit are integrally welded except for the radial sealing of the compressor joint by adopting double O-shaped sealing rings, and the leakage of the vehicle-mounted vibration refrigerant is reduced because a hard pipe is fixed by a pipe clamp; the refrigerant adopts an environment-friendly refrigerant R134a with higher critical temperature and lower working pressure, and the high-voltage direct current (DC520V) electrically-driven compressor is adopted for compression refrigeration, so that the comfort and the stability of the environmental guarantee are improved; the heating adopts a PTC ceramic electric heater with high voltage direct current (DC520V), so that the safety of electric equipment is improved. The power supply of the temperature regulating system adopts high-voltage direct current input in the running and standby processes, so that the specification of air conditioning equipment is reduced, and the use reliability of the equipment is improved; main equipment such as compressors, condensing fans and the like in the three air conditioning units can be interchanged and are universal.
The temperature regulating system is mainly used for completing power supply and control of the air conditioning load equipment of the cab and the air conditioning load equipment of the heat preservation cabin, and uploading of return air temperature and humidity of the cab, return air temperature and humidity of the heat preservation cabin, environmental temperature parameters and fault code data. The temperature adjusting system is connected with a corresponding socket of a power supply and distribution power supply through a power supply cable of the split cab and a power supply cable of the heat preservation cabin.
The temperature regulating system is powered on and started and stopped by adopting manual control, and the working process adopts automatic control to keep the temperature and the humidity of return air within a set temperature range. Each controller can selectively adopt an ARM core MCU as a main control chip, and a hardware control system is formed by matching with other functional chips and peripheral interfaces; the software develops a functional application module on the basis of a compact operating system so as to realize all functions of air conditioner control; the software control system adopts a layered structure, the operating system manages the hardware control system, allocates system resources, manages various interfaces through a hardware driver and provides a software interface for hardware operation for the application module.
A driving module in the high-voltage direct-current electric compressor controls the speed regulation of the compressor through a PWM signal; the circulating fan is used for regulating the speed through a high gear, a middle gear and a low gear.
While the invention has been described with reference to a particular embodiment, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from its scope. Therefore, it is intended that the invention not be limited to the particular embodiment disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.
Claims (6)
1. A high-voltage direct-current driven temperature regulating system is characterized by comprising a power supply and distribution system, 2 cab air conditioning units and 1 heat preservation cabin air conditioning unit, wherein the air conditioning units are all of a full-return-air integral structure, and high-voltage direct current power supplies of the power supply and distribution system are all input by high-voltage direct current in the driving and standby processes so as to improve the reliability of the air conditioning units; the air conditioning unit comprises an air conditioning unit, a compressor joint, a hard pipe, a pipe clamp, an internal compressor, a high-voltage direct current power supply, a high-voltage direct current driven compressor, a; the cab air conditioning unit comprises a left cab unit, a right cab unit, a heat preservation cabin unit, a control cabinet of the cab, a control cabinet of the heat preservation cabin, a first air conditioner of the cab, a second air conditioner of the cab, a air conditioner of the heat preservation cabin, a display and control box of the air conditioner of the heat preservation cabin, a return air temperature and humidity sensor of the heat preservation cabin, an environment temperature sensor, and a return air temperature and humidity sensor of the cab, a temperature controller of the heat preservation cabin, a return air temperature and humidity sensor of the heat preservation cabin and an environment temperature sensor which are sequentially connected in series, wherein the first air conditioner of the cab and the second air conditioner of the cab comprise an electric heating unit, a condensing fan, a circulating fan and a compressor, the air conditioner of the heat preservation cabin comprises a compressor, a circulating fan, a condensing fan, an electric heating I unit and an electric heating II unit, the control cabinet of the cab is electrically, the heat preservation control cabinet is electrically connected with the heat preservation cabin air conditioner, the power supply and distribution system is that the cab control cabinet and the heat preservation cabin control cabinet provide high-voltage direct-current electric power, the cab air conditioner display and control box is connected with the cab air conditioner display and control box, the heat preservation cabin air conditioner display and control box is connected with the heat preservation cabin temperature regulation controller, the heat preservation cabin return air temperature and humidity sensor and the environment temperature sensor are connected with the heat preservation cabin temperature regulation controller, the cab temperature regulation controller is connected with the cab control cabinet, the heat preservation cabin temperature regulation controller is connected with the heat preservation cabin control cabinet, the cab control cabinet comprises a cab left unit electric cabinet and a cab right unit electric cabinet, the heat preservation cabin control cabinet comprises a heat preservation cabin unit electric cabinet, the cab left unit and the cab right unit all comprise a shell, a high-voltage direct-current motor compressor and a high-, The system comprises an evaporator, a circulating fan, a condenser, a condensing fan, a drying liquid storage device, an expansion valve and an electric cabinet, wherein the circulating fan is used for regulating the speed through a high gear, a middle gear and a low gear;
based on a DC520V direct current bus respectively connected with the power supply and distribution system, the cab control cabinet and the heat preservation cabin control cabinet, the left cab unit outputs 6 switching value output signals and 1 PWM output signal to the left cab unit electric cabinet, the right cab unit inputs 16 switching value input signals, 2 analog value input signals and cab air conditioner display control box communication signals to the right cab unit electric cabinet, the left cab unit electric cabinet inputs 6 switching value input signals and 1 analog value input signal to the left cab unit, the right cab unit electric cabinet outputs a vehicle control system CAN communication signal, 14 switching value output signals and 2 analog value output signals to the right cab unit, and the heat preservation cabin unit electric cabinet outputs 9 switching value output signals, 9 PWM output signals to the heat preservation cabin unit, The control system comprises 1 PWM output signal and a CAN communication signal of a vehicle control system, wherein a heat preservation cabin unit inputs a heat preservation cabin display control box communication signal, 9 switching value input signals and 3 analog value input signals to an electric cabinet of the heat preservation cabin unit, the electric cabinet of a left unit of a cab also controls a first condensing fan, a first circulating fan, a first electric heater, a first electric heating protection unit, a first compressor, a first DC/DC power converter and a second filtering unit of a cab air conditioner I, and acquires a first DC fault signal from the cab air conditioner I; the right unit electric cabinet of the cab controls a second electric heating protection unit, a second electric heater, a second circulating fan, a second condensing fan, a second compressor, a second DC/DC power converter and a fourth filtering unit of the air conditioner II of the cab, obtains a second high-low voltage protection signal from the air conditioner II of the cab and also receives a signal detected by a return air temperature and humidity sensor of the cab; the electric cabinet of the heat preservation cabin unit controls a first electric heater, a second electric heater, a third electric heater, a circulating fan, a condensing fan, a compressor, a sixth filtering unit, a third DC/DC power converter and a compressor PWM control unit of the heat preservation cabin air conditioner, obtains a third DC fault signal, an electric heating protection signal and a high-low voltage protection signal from the heat preservation cabin air conditioner, and also receives a signal detected by a heat preservation cabin temperature and humidity sensor and a signal detected by an environment temperature sensor;
the electric control box of the left unit of the cab further comprises a first filter, the electric control box of the right unit of the cab further comprises a third filter, the electric control box of the heat preservation cabin unit further comprises a fifth filter, and the first filter, the third filter and the fifth filter a high-voltage direct current power supply input end of the power supply and distribution system and then respectively drive a high-voltage direct current motor compressor of an air conditioner of the cab and the heat preservation cabin; then, filtering is carried out by the second filter, the fourth filter and the sixth filter; and then, reducing the high-voltage direct-current power supply of the power supply and distribution system to a second direct-current voltage through the first DC/DC power converter, the second DC/DC power converter and the third DC/DC power converter so as to respectively drive a circulating fan, a condensing fan and a PTC electric heater of an air conditioner of a cab and a heat preservation cabin to work.
2. The temperature conditioning system of claim 1, wherein the refrigerant is an environmentally friendly refrigerant with a high critical temperature and a low working pressure.
3. The tempering system of claim 2, wherein said environmentally friendly refrigerant is R134 a.
4. The temperature regulating system according to claim 1, wherein the voltage provided by the high voltage direct current power supply is DC 450V-DC 590V.
5. Tempering system according to claim 1, characterized in that the air conditioning unit employs high voltage direct current PTC ceramic electric heaters for heating.
6. The temperature conditioning system of claim 1, wherein the high voltage dc power supply of the power distribution system is configured to power a cab air conditioning unit load device and a hot well air conditioning unit load device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710416085.5A CN107433834B (en) | 2017-06-06 | 2017-06-06 | High-voltage direct-current driven temperature regulating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710416085.5A CN107433834B (en) | 2017-06-06 | 2017-06-06 | High-voltage direct-current driven temperature regulating system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107433834A CN107433834A (en) | 2017-12-05 |
| CN107433834B true CN107433834B (en) | 2020-06-19 |
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| CN201710416085.5A Active CN107433834B (en) | 2017-06-06 | 2017-06-06 | High-voltage direct-current driven temperature regulating system |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07285323A (en) * | 1994-04-19 | 1995-10-31 | Matsushita Electric Ind Co Ltd | Control driving device of electric compressor for automobile |
| CN105730186A (en) * | 2016-02-05 | 2016-07-06 | 湖北泰和电气有限公司 | Vehicle-mounted air conditioner for special vehicle |
| CN105922843A (en) * | 2016-05-20 | 2016-09-07 | 上海交通大学 | Electric automobile fresh air exchanging air conditioner system and control method thereof |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07285323A (en) * | 1994-04-19 | 1995-10-31 | Matsushita Electric Ind Co Ltd | Control driving device of electric compressor for automobile |
| CN105730186A (en) * | 2016-02-05 | 2016-07-06 | 湖北泰和电气有限公司 | Vehicle-mounted air conditioner for special vehicle |
| CN105922843A (en) * | 2016-05-20 | 2016-09-07 | 上海交通大学 | Electric automobile fresh air exchanging air conditioner system and control method thereof |
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