CN108944639A - A kind of pure electric vehicle refrigeration air conditioning system for vehicle - Google Patents
A kind of pure electric vehicle refrigeration air conditioning system for vehicle Download PDFInfo
- Publication number
- CN108944639A CN108944639A CN201810871631.9A CN201810871631A CN108944639A CN 108944639 A CN108944639 A CN 108944639A CN 201810871631 A CN201810871631 A CN 201810871631A CN 108944639 A CN108944639 A CN 108944639A
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- China
- Prior art keywords
- controller
- conditioning system
- pure electric
- vehicle
- electric vehicle
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60P—VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS
- B60P3/00—Vehicles adapted to transport, to carry or to comprise special loads or objects
- B60P3/20—Refrigerated goods vehicles
-
- 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
- B60H1/00357—Air-conditioning arrangements specially adapted for particular vehicles
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
- F25B41/31—Expansion valves
-
- 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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Transportation (AREA)
- Air-Conditioning For Vehicles (AREA)
Abstract
The invention discloses a kind of pure electric vehicles to refrigerate air conditioning system for vehicle, including motor compressor, oil eliminator, outdoor unit, expansion valve, indoor unit, gas-liquid separator and controller, capacity adjusting valve is installed between the indoor unit and gas-liquid separator, capacity adjusting valve passes through corresponding pipeline and the indoor unit, gas-liquid separator is connected, the power input port of controller is connected to pure electric vehicle refrigerator car main power source, and reserved power input interface is provided on controller, when air-conditioning system evaporating temperature is too low, capacity adjusting valve automatically adjusts suction pressure of compressor, the certain refrigerant circulation of guarantee system, the lower part of the oil eliminator is additionally provided with oil return hole, the oil return hole is connected by oil return line with the suction line of motor compressor, guarantee that motor compressor has normal oil return in the process of running, improve electric compressor The service life of machine, while can reasonably select external power supply or main power source as power supply source, improve the course continuation mileage of refrigerator car.
Description
Technical field
The present invention relates to pure electric vehicle refrigerator car fields more particularly to a kind of pure electric vehicle to refrigerate air conditioning system for vehicle.
Background technique
With the high speed development of social economy, people's lives environment is by serious destruction, especially in recent years, haze
Serious influence is brought to the physical and mental health and living environment of people, building for environment protection field is more focused in national economic development
If vehicle exhaust drastically influences environmental quality, and electric car has become it is known that the quantity of automobile is more and more at present
The hot spot of people's exploitation, along with the popularization of national policy, the enterprise of electric car and vehicle are more and more.Meanwhile logistics is transported
The rapid development of defeated industry, demand of the people to electronic refrigerator wagon are also increasingly sharpened.
Existing market, existing electronic refrigerator car, when refrigerating carriage requires temperature very low, suction pressure of compressor is lower,
Compressor oil return is unsmooth, be easy to cause compressor oil starvation, and then damage compressor, causes the service life of compressor shorter, presses
Contracting machine is equivalent to the heart of entire air-conditioning system, once stopping working, entire air-conditioning system will paralyse, temperature in refrigerated vehicle carriage
It cannot be effectively controlled suitable temperature, necessarily cause the article in compartment rotten, cause unnecessary loss.In addition, electronic
Refrigerator car power and air-conditioning system power be all using electric car itself battery as a source of power, cause the continuation of the journey of vehicle
Ability reduces.
Summary of the invention
The technical problems to be solved by the present invention are: providing a kind of pure electric vehicle refrigeration air conditioning system for vehicle, work as air-conditioning system
Suction pressure of compressor is automatically adjusted when evaporating temperature is too low, is guaranteed the certain refrigerant circulation of system, is prevented motor compressor
Overheat and good oil return, extend the service life of motor compressor, solve suction pressure of compressor it is too low when, compression
Machine oil return it is unsmooth so that damage compressor the problem of, while the air-conditioning system can choose external power supply be pure electric vehicle refrigerator car
Compartment in cool down, improve the cruising ability of vehicle.
In order to solve the above technical problems, the technical scheme is that a kind of pure electric vehicle refrigerates air conditioning system for vehicle, packet
It includes through the sequentially connected motor compressor of pipeline, oil eliminator, outdoor unit, expansion valve, indoor unit, gas-liquid separator, it is described
Capacity adjusting valve is installed between indoor unit and gas-liquid separator, capacity adjusting valve by corresponding pipeline and the indoor unit,
Gas-liquid separator is connected, and the lower part of the oil eliminator is additionally provided with oil return hole, the oil return hole by oil return line with it is electronic
The suction line of compressor is connected, and the controller for controlling the air-conditioning system operation, institute are provided on the electronic refrigerator car
Motor compressor is stated with controller by corresponding cable connection, the power input port and pure electric vehicle of the controller refrigerate
The connection of car owner's power supply, and the reserved power input interface for being connected with external power supply is provided on the controller.
As a preferred solution, which further includes defrost pipeline, is provided with solenoid valve on the defrost pipeline,
The entrance of the defrost pipeline is connected with the outlet of oil eliminator, and the outlet of defrost pipeline is connected with the entrance pipe of indoor unit
It is logical.
As a preferred solution, which is installed in the entire car controller of pure electric vehicle refrigerator car or is installed on
On the air-conditioner set of refrigerator car.
As a preferred solution, the controller includes the power supply source for judging the power supply source of air-conditioning system
Judgment module and AC/DC converter, power supply source judgment module are set on controller, the reserved power supply of the controller
Input interface connects AC/DC converter, is provided on the AC/DC converter and connects for being connected with external power source external power supply
Mouthful.
As a preferred solution, the AC/DC converter is external AC/DC converter, the external AC/DC conversion
It is connected between device and controller by male and female banjo.
As a preferred solution, the AC/DC converter is built-in AC/DC conversion module, which turns
Mold changing block is set to inside controller, and the corresponding external power interface is set on controller.
As a preferred solution, which further includes dry liquid reservoir, and the dry liquid reservoir is installed on room
Between outer machine and expansion valve.
After above-mentioned technical proposal, effect of the invention is: the air-conditioning system is in use if there is electricity
When the low situation of dynamic suction pressure of compressor, capacity adjusting valve is automatically opened, and is adjusted, makes to the pressure of gas in pipeline
Motor compressor can reach suitable pressure of inspiration(Pi), to guarantee that the motor compressor moment keeps good oil return situation, mention
The high working efficiency of air-conditioning system, extends the service life of compressor, meanwhile, the power input port of the controller
It is connected to pure electric vehicle refrigerator car main power source, and the reserved power supply being provided on the controller for being connected with external power supply is defeated
Incoming interface, before the starting of electronic refrigerator car, general refrigerator car needs before transporting refrigerating article will be in refrigerated vehicle carriage
Temperature be down to required temperature, then start to ship cargo, can connect reserved power input interface and external power supply at this time
It connects, from the main power source without the use of refrigerator car, and then improves the course continuation mileage of refrigerator car.
Again since the air-conditioning system further includes defrost pipeline, solenoid valve, the defrost pipeline are provided on the defrost pipeline
Entrance be connected with the outlet of oil eliminator, the outlet of defrost pipeline is connected with the entrance pipe of indoor unit, works as indoor unit
Core surface frosting to a certain extent when, the solenoid valve on defrost pipeline can be opened, high-temperature high-pressure refrigerant gas is by oil
Indoor unit is entered after separator, and defrost has been carried out to indoor unit, has also increased the pressure of inspiration(Pi) of motor compressor to a certain extent
Power, it is ensured that entire air-conditioning system operates normally.
And since the controller includes the power supply source judgment module and AC/ for judging the power supply source of air-conditioning system
DC converter, power supply source judgment module are set on controller, the reserved power input interface connection of the controller
AC/DC converter is provided with for being connected with external power source external power interface on the AC/DC converter.It is optional in this way
The mode with civilian Alternating Current Power Supply is selected to cooling down in the compartment of pure electric vehicle refrigerator car, is rectified by AC/DC converter, at this time
And be conducive to transport for long-distance to improve the course continuation mileage of pure electric vehicle refrigerator car without using vehicle-mounted battery.
Again since the air-conditioning system further includes dry liquid reservoir, the dry liquid reservoir be installed on outdoor unit and expansion valve it
Between, reservoir, drying, filtering can be played the role of, it is ensured that the normal refrigerant operation of air-conditioning system needs and prevent expansion valve plug
Plug.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is the structural schematic diagram of the embodiment of the present invention；
Fig. 2 is the local wiring schematic diagram of controller；
In attached drawing: 1. motor compressors；2. oil eliminator；3. outdoor unit；4. expansion valve；5. indoor unit；6. capacity adjusting valve；
7. gas-liquid separator；8. controller；9. solenoid valve；10. dry liquid reservoir；11. reserved power input interface；12.AC/DC turns
Parallel operation；13. main power source；14. source judgment module of powering.
Specific embodiment
Below by specific embodiment, the present invention is described in further detail.
As depicted in figs. 1 and 2, a kind of pure electric vehicle refrigeration air conditioning system for vehicle, the battery including pure electric vehicle refrigerator car itself,
It further include by the sequentially connected motor compressor 1 of pipeline, oil eliminator 2, outdoor unit 3, expansion valve 4, indoor unit 5, gas-liquid point
From device 7, which further includes capacity adjusting valve 6, the capacity adjusting valve 6 be installed on indoor unit 5 and gas-liquid separator 7 it
Between, capacity adjusting valve 6 is connected by corresponding pipeline with the indoor unit 5, gas-liquid separator 7, under the oil eliminator 2
Portion is additionally provided with oil return hole, which is connected by oil return line with the suction line of motor compressor 1, the energy tune
Section valve 6 can control the flow of pipeline to achieve the purpose that control pressure.Capacity adjusting valve 6 is a kind of ratio controlled by pressure of inspiration(Pi)
Example type pneumatic control valve.It proportionally changes opening for valve according to the deviation between pressure of inspiration(Pi) and the valve opening pressure of setting
Degree to adjust the flow of refrigerant, and then adjusts pressure, which is the common valve in current refrigeration technology field
Door, technical staff can be according to the model of the suitable regulating valve 6 of specific parameter selection.
In the present embodiment, which further includes defrost pipeline, is provided with solenoid valve 9, describedization on the defrost pipeline
The entrance of white pipeline is connected with the outlet of oil eliminator 2, and the outlet of defrost pipeline is connected with the entrance pipe of indoor unit 5.
Refrigerant becomes the gaseous coolant of high temperature and pressure after compressor operating, and gaseous coolant has separated mixing after oil eliminator 2
Lubricating oil in gaseous coolant, when the frosting of indoor unit core surface to a certain extent when solenoid valve 9 open, a part of high temperature is high
The gaseous coolant of pressure enters directly into indoor unit 5 without outdoor unit 3 and expansion valve 4, and which adds enter indoor unit 5
Gaseous coolant amount, improve evaporating temperature, also improve the admission pressure of compressor, 5 core surface frost of indoor unit is by high temperature
After the gaseous coolant of high pressure all melts, solenoid valve 9 is closed, and is ensured that air-conditioning system works normally always, is also ensured that oil return is smooth.
As shown in Fig. 2, being provided with the controller 8 for controlling the air-conditioning system operation, the electricity on the electronic refrigerator car
Dynamic compressor (1) passes through corresponding cable connection, the power input port and pure electric vehicle of the controller (8) with controller (8)
Refrigerator car main power source 13 is connected to, and the reserved power input for being connected with external power supply is provided on the controller (8)
Interface 11.The external power supply can select current civilian alternating current, and certain external power supply, which can also be selected, is detached from refrigerator car
External dc power.
In the present embodiment, which is installed in the entire car controller of pure electric vehicle refrigerator car or is installed on refrigerator car
On air-conditioner set.It, can be by vehicle factor according to the fortune of air-conditioning when in the entire car controller that controller is integrated in electronic refrigerator car
Row logic is designed；And if be integrated on the air-conditioner set of refrigerator car, then can be by air-conditioner set production supplier's system
Make, current conventional PLC or single-chip microcontroller or other chips on the market may be selected in controller.
In the present embodiment, preferably external power supply uses civilian alternating current, and the controller includes being used to judge air-conditioning system
Power supply source power supply source judgment module 14 and AC/DC converter 12, power supply source judgment module 14 is set to control
On device processed, the reserved power input interface 11 of the controller connects AC/DC converter 12, sets on the AC/DC converter 12
It is equipped with for being connected with external power source external power interface.
Wherein the AC/DC converter 12 is external AC/DC converter 12, the external AC/DC converter 12 and control
It is connected between device by male and female banjo.As shown in Fig. 2, being the AC/DC converter 12 there are also a kind of technical approach certainly
For built-in AC/DC conversion module, which is set to inside controller, the corresponding external power supply
Interface is set on controller.The working principle of the two is similar, and wiring is also similar, therefore only external by describing in Fig. 2
AC/DC converter 12 wiring construction.And controller is current conventional device, therefore to output and input pin equal for others
It is used to control the operation of air-conditioning, just not detailed description, this field in Fig. 2 and in this specification for conventional connection type
Technical staff know its mode of connection.
The air-conditioning system further includes dry liquid reservoir 10, the dry liquid reservoir 10 be installed on outdoor unit 3 and expansion valve 4 it
Between.
Before entrucking, motor compressor 1 and other devices is driven to work to cold by the way of civilian Alternating Current Power Supply first
It hides in the compartment of vehicle and cools down, after being cooled to suitable temperature, cargo is filled in compartment, pure electric vehicle is used in transportational process
The battery of refrigerator car itself is powered compressor, to guarantee that pure electric vehicle refrigerator car has good cruising ability, favorably
In long-distance transport.
The principle of air-conditioning system refrigeration is as follows: low-pressure gaseous refrigerant becomes the gas of high pressure-temperature through motor compressor 1
State refrigerant is separated by oil eliminator 2, and the lubricating oil and gas carried secretly in gas carry out initial gross separation, the lubrication after separation
Oil is back in motor compressor 1, and for the high temperature and high pressure gas after separation through heat release when outdoor unit 3, cooling down becomes high pressure height
The liquid of temperature, drying liquid reservoir 10 are dried, filter, then flow to expansion valve 4, finally flow to indoor unit 5, high temperature
The refrigerant of high pressure becomes smaller volume increase suddenly by 4 pressure of expansion valve, is evaporated, absorbs interior a large amount of thermal energy by liquid
Become the state of gas-liquid mixed, thus by refrigerated vehicle carriage temperature reduce, achieve the purpose that refrigerating, then using
The separation of gas-liquid separator 7, low-pressure gas are inhaled into again in motor compressor 1, carry out circularly cooling work next time.
Back pressure in use process after the adjustable evaporation of capacity adjusting valve 6, when 5 evaporator core surface of indoor unit is tied
Frost to a certain extent when, solenoid valve 9 will open, to evaporator core surface carry out defrost, improve compressor 1 back pressure and
Increase refrigerant circulation, to guarantee that 1 moment of motor compressor keeps good oil return situation, improves the work of air-conditioning system
Efficiency extends the service life of compressor, solve suction pressure of compressor it is too low when, compressor oil return is unsmooth, is easy to make
At compressor oil starvation, and then damage compressor, the problem for causing the service life of compressor shorter.
Embodiment described above is only the description to the preferred embodiment of the present invention, not as to the scope of the invention
It limits, on the basis of not departing from design spirit of the present invention, to various modifications and transformation that technical solution of the present invention is made,
It should fall within the scope of protection determined by the claims of the present invention.
Claims (7)
1. a kind of pure electric vehicle refrigerates air conditioning system for vehicle, it is characterised in that: including passing through the sequentially connected motor compressor of pipeline
(1), oil eliminator (2), outdoor unit (3), expansion valve (4), indoor unit (5), gas-liquid separator (7), the indoor unit (5) and gas
It is equipped between liquid/gas separator (7) capacity adjusting valve (6), capacity adjusting valve (6) passes through corresponding pipeline and the indoor unit
(5), gas-liquid separator (7) is connected, and the lower part of the oil eliminator (2) is additionally provided with oil return hole, which passes through oil return
Pipeline is connected with the suction line of motor compressor (1), and the control air-conditioning system fortune is provided on the electronic refrigerator car
Capable controller (8), the motor compressor (1) and controller (8) by corresponding cable connection, the controller (8)
Power input port is connected to pure electric vehicle refrigerator car main power source (13), and is provided with and is used for and external electrical on the controller (8)
The reserved power input interface (11) that source is connected.
2. a kind of pure electric vehicle as described in claim 1 refrigerates air conditioning system for vehicle, it is characterised in that: the air-conditioning system further includes
Defrost pipeline is provided with solenoid valve (9) on the defrost pipeline, the outlet phase of the entrance and oil eliminator (2) of the defrost pipeline
Connection, the outlet of defrost pipeline is connected with the entrance pipe of indoor unit (5).
3. a kind of pure electric vehicle as claimed in claim 2 refrigerates air conditioning system for vehicle, it is characterised in that: the controller (8) installation
In the entire car controller of pure electric vehicle refrigerator car or be installed on refrigerator car air-conditioner set on.
4. a kind of pure electric vehicle as claimed in claim 3 refrigerates air conditioning system for vehicle, it is characterised in that: controller (8) packet
Include the power supply source judgment module and AC/DC converter for judging the power supply source of air-conditioning system, the power supply source judgement
Module is set on controller (8), and the reserved power input interface of the controller (8) connects AC/DC converter, the AC/
It is provided on DC converter for being connected with external power source external power interface.
5. a kind of pure electric vehicle as claimed in claim 4 refrigerates air conditioning system for vehicle, it is characterised in that: the AC/DC converter
For external AC/DC converter, it is connect between the external AC/DC converter and controller (8) by male and female banjo.
6. a kind of pure electric vehicle as claimed in claim 4 refrigerates air conditioning system for vehicle, it is characterised in that: the AC/DC converter
For built-in AC/DC conversion module, which is set to controller (8) inside, the corresponding external electrical
Source interface is set on controller (8).
7. such as a kind of pure electric vehicle refrigeration air conditioning system for vehicle described in claim 5 or 6, it is characterised in that: the air-conditioning system is also
Including dry liquid reservoir (10), the dry liquid reservoir (10) is installed between outdoor unit (3) and expansion valve (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810871631.9A CN108944639A (en) | 2018-08-02 | 2018-08-02 | A kind of pure electric vehicle refrigeration air conditioning system for vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810871631.9A CN108944639A (en) | 2018-08-02 | 2018-08-02 | A kind of pure electric vehicle refrigeration air conditioning system for vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108944639A true CN108944639A (en) | 2018-12-07 |
Family
ID=64467076
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810871631.9A Withdrawn CN108944639A (en) | 2018-08-02 | 2018-08-02 | A kind of pure electric vehicle refrigeration air conditioning system for vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108944639A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110254739A (en) * | 2019-07-23 | 2019-09-20 | 江苏天一机场专用设备股份有限公司 | A kind of refrigerator carriage temprature control method and electronic boat eat vehicle |
-
2018
- 2018-08-02 CN CN201810871631.9A patent/CN108944639A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110254739A (en) * | 2019-07-23 | 2019-09-20 | 江苏天一机场专用设备股份有限公司 | A kind of refrigerator carriage temprature control method and electronic boat eat vehicle |
| CN110254739B (en) * | 2019-07-23 | 2022-05-27 | 江苏天一机场专用设备股份有限公司 | Refrigerator carriage temperature control method and electric food cart |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20181207 |