CN104676954A - Heat pump system for vehicle - Google Patents
Heat pump system for vehicle Download PDFInfo
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- CN104676954A CN104676954A CN201410432153.3A CN201410432153A CN104676954A CN 104676954 A CN104676954 A CN 104676954A CN 201410432153 A CN201410432153 A CN 201410432153A CN 104676954 A CN104676954 A CN 104676954A
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- Prior art keywords
- valve
- cold
- evaporimeter
- producing medium
- compressor
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Classifications
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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
- B60H1/00899—Controlling the flow of liquid in a heat pump system
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- 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
- F25B30/00—Heat pumps
- F25B30/02—Heat pumps of the compression type
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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
- B60H1/00899—Controlling the flow of liquid in a heat pump system
- B60H1/00914—Controlling the flow of liquid in a heat pump system where the flow direction of the refrigerant does not change and there is a bypass of the condenser
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- 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
- F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
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- 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
- F25B41/385—Dispositions with two or more expansion means arranged in parallel on a refrigerant line leading to the same evaporator
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- 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
- F25B41/39—Dispositions with two or more expansion means arranged in series, i.e. multi-stage expansion, on a refrigerant line leading to the same evaporator
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- 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
- F25B6/00—Compression machines, plants or systems, with several condenser circuits
- F25B6/04—Compression machines, plants or systems, with several condenser circuits arranged in series
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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
- B60H2001/00949—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 comprising additional heating/cooling sources, e.g. second evaporator
Abstract
A heat pump system for a vehicle may include an outdoor condenser, an expansion valve, an evaporator, a compressor, and an indoor condenser that primarily condenses the refrigerant compressed through the compressor and is connected with the outdoor condenser, in which the outdoor condenser, the expansion valve, the evaporator, the compressor, and the indoor condenser are connected through refrigerant pipes, a first valve disposed in the refrigerant pipe between the outdoor condenser and the expansion valve; a chiller connected with the first valve through the refrigerant pipe, between the evaporator and the compressor, and controls the temperature of the refrigerant by exchanging heat; a connection pipe selectively allowing some of the refrigerant flowing into the chiller in a dehumidifying mode; and a second valve disposed in the connection pipe.
Description
The cross reference of related application
This application claims the priority of No. 10-2013-0148737th, korean patent application submitted on December 2nd, 2013, the full content of this application is incorporated into this all objects for being quoted by this.
Technical field
The present invention relates to a kind of heat pump for vehicle.More specifically, the present invention relates to a kind of heat pump for vehicle, it increases the operating range of vehicle by the use reducing ptc heater, and when working in the heating in the winter time, if necessary it can utilize the heating mode for heated vehicle to run dehumidification mode continuously, and its whole efficiency is improved.
Background technology
Generally speaking, automatic air regulating system comprises the air conditioning module of the inside for heating/cooling vehicle.
Such air conditioning module is designed to the inside using heat exchange medium cooling vehicle, while circulating through condenser, receiving dryer, expansion valve, evaporimeter and compressor, heat exchange medium is discharged from compressor and is passed through evaporimeter heat-shift, or their use the inside being carried out heated vehicle by the cooling water of heater heat-shift.
Recently, along with the increase of the concern about energy efficiency and problem of environmental pollution, there are the needs that development can substitute in fact the environmentally friendly vehicle of ICE (internal combustion engine) vehicle, and environmentally friendly vehicle generally belongs to by as the fuel cell of power supply or power-actuated electric vehicle and by engine and battery-driven hybrid vehicle.
In those environmentally friendly vehicles, different from the air handling system of common vehicle, specific heater do not equipped by electric vehicle, and for the so-called heat pump of air handling system of electric vehicle.
In heat pump, summer in refrigeration mode by gaseous refrigerant (by the compressor compresses) condensation of condenser by high temperature and high pressure, and the method for being evaporated the temperature and humidity reducing vehicle interior by receiving dryer and expansion valve is the same with the method for normal air regulating system; But in heating mode, the gaseous refrigerant of high temperature and high pressure is used as heat medium in the winter time.
In other words, in the heating mode of electric vehicle, the gaseous refrigerant of high temperature and high pressure can not flow into outdoor condenser, but flow into indoor condenser by valve and with suck extraneous air heat-shift wherein, and extraneous air is along with the heat exchanged is by the inside of PCT (positive temperature coefficient) heater inflow vehicle, makes the temperature of vehicle interior increase.
After condensation, by exchanging with extraneous air wherein, the gaseous refrigerant flowing to high temperature in indoor condenser and high pressure is discharged as liquid refrigerant.
But, when needing dehumidifying while the heat pump of above-mentioned correlation technique runs in the winter time in the heating, it must stop running in the heating, change into the heating mode using ptc heater, then refrigeration mode is changed into, make to produce noise due to the frequent change between heating mode and refrigerating mode and durability reduction, and the hydraulic performance decline of integral heat pump system.
In addition, when frequent operation dehumidification mode, due to the expansion of the ptc heater scope of application, power consumption increases, so reduce with whole operating ranges of same charge.
The information being disclosed in background parts of the present invention is only intended to increase the understanding to general background of the present invention, and should not be regarded as admitting or imply in any form that this information structure has been prior art known in those skilled in the art.
Summary of the invention
Various aspects of the present invention are devoted to provide a kind of heat pump for vehicle, it has the following advantages: when needing internal moisture removal during heating mode in the winter time, by performing heating mode and dehumidification mode when even not changing to refrigeration mode, it can prevent the reduction of noise and the durability caused due to the frequent change between heating mode and refrigeration mode in the related, and improves the efficiency of total system by utilizing the making the operating range for increasing vehicle of minimizing PTC.
In one aspect of the invention, can be comprised by the heat pump for electric vehicle controlling the cooling/heating of electric vehicle inside according to heating mode and refrigeration mode circulating refrigerant: outdoor condenser, described outdoor condenser is by described condensation of refrigerant; Expansion valve, described expansion valve fluid is connected to described outdoor condenser and makes to be expanded by the cold-producing medium of described outdoor condenser condenses; Evaporimeter, described evaporimeter fluid is connected to described expansion valve and the cold-producing medium expanded by described expansion valve is evaporated; Compressor, described compressor fluid is connected to described evaporimeter and compresses the cold-producing medium by described evaporator evaporation; Indoor condenser, described indoor condenser is by by the elementary condensation of the cold-producing medium of described compressor compresses, and wherein said indoor condenser is connected with described outdoor condenser, described expansion valve, described evaporimeter, described compressor and described indoor condenser by refrigerant tubing; First valve, described first valve arrangement is in the first refrigerant tubing of the described refrigerant tubing between described outdoor condenser and described expansion valve; Refrigerator, between described evaporimeter and described compressor, described refrigerator is connected with described first valve by second refrigerant pipeline, and controls the temperature of described cold-producing medium by heat-shift; Connecting pipe, in dehumidification mode, described connecting pipe optionally allow in described cold-producing medium some flow in described refrigerator; And second valve, described second valve arrangement is in described connecting pipe.
Described connecting pipe is by the second refrigerant pipeline be arranged between described first valve and described refrigerator and the 3rd refrigerant tubing connection be arranged between described expansion valve and described evaporimeter.
Described refrigerator is connected with accumulator by described 3rd refrigerant tubing, described accumulator is arranged between described evaporimeter and described compressor, and wherein said 3rd refrigerant tubing connects described evaporimeter, described accumulator, described compressor and described indoor condenser.
Described second valve is check-valves, and described second valve prevents described cold-producing medium from being flowed back to described refrigerator from described evaporimeter by described connecting pipe.
Described first valve is three-way valve.
4th refrigerant tubing of described refrigerant tubing can have the aperture between described outdoor condenser and described indoor condenser further, and described outdoor condenser is connected with described indoor condenser by wherein said 4th refrigerant tubing.
In heating mode, by the operation of described first valve, cold-producing medium from described outdoor condenser is not delivered in described expansion valve and described evaporimeter, but deliver in described refrigerator, then deliver in described compressor along with the temperature risen, and when needing described dehumidification mode during described heating mode, by opening described second valve, some inflow in the cold-producing medium of described refrigerator are delivered in described evaporimeter by described connecting pipe, and described heating mode keeps running simultaneously.
In another aspect of the present invention, the heat pump for electric vehicle controlling the cooling/heating of electric vehicle inside according to heating mode and refrigeration mode can comprise: outdoor condenser, and described outdoor condenser is by condensation of refrigerant; Expansion valve, described expansion valve fluid is connected to described outdoor condenser and makes to be expanded by the cold-producing medium of described outdoor condenser condenses; Evaporimeter, described evaporimeter fluid is connected to described expansion valve and the cold-producing medium expanded by described expansion valve is evaporated; Compressor, described compressor fluid is connected to described evaporimeter and compresses the cold-producing medium by described evaporator evaporation; Indoor condenser, described indoor condenser is by by the elementary condensation of the cold-producing medium of described compressor compresses, and wherein said indoor condenser is connected with described outdoor condenser, described expansion valve, described evaporimeter, described compressor and described indoor condenser by refrigerant tubing; First valve, described first valve arrangement is in the first refrigerant tubing of the described refrigerant tubing between described outdoor condenser and expansion valve; Refrigerator, described refrigerator is connected with the accumulator between described evaporimeter and described compressor, and described refrigerator is arranged between described first valve and described accumulator, and is controlled the temperature of described cold-producing medium by heat-shift; Connecting pipe, described connecting pipe is connected to the second refrigerant pipeline of described refrigerant tubing and is connected to the 3rd refrigerant tubing of described refrigerant tubing, described second refrigerant pipe arrangement is between described expansion valve and described evaporimeter, described 3rd refrigerant tubing is arranged between described outdoor condenser and described indoor condenser, optionally some inflow in the cold-producing medium of described outdoor condenser are delivered to described evaporimeter in described dehumidification mode; And second valve, described second valve arrangement is in described connecting pipe.
Described second valve is check-valves, and it prevents the cold-producing medium in described connecting pipe from flowing back to described refrigerator from described evaporimeter.
Described first valve is three-way valve.
Described 3rd refrigerant tubing can be included in the aperture between described outdoor condenser and described indoor condenser, and described connecting pipe is connected with described 3rd refrigerant tubing between described aperture and described outdoor condenser.
In heating mode, by the operation of described first valve, cold-producing medium from described outdoor condenser is not delivered in described expansion valve and evaporimeter, but deliver in described refrigerator, then deliver in described compressor along with the temperature risen, and when needing described dehumidification mode during described heating mode, by opening described second valve, some inflow in the cold-producing medium of described refrigerator are delivered in described evaporimeter by described connecting pipe, and described heating mode keeps running simultaneously.
As mentioned above, the heat pump for vehicle according to an illustrative embodiment of the invention, when needing internal moisture removal during heating mode in the winter time, by performing heating mode and dehumidification mode when even not changing to refrigeration mode, the reduction of noise and the durability caused due to the frequent change between heating mode and refrigeration mode in the related can be prevented, and improve the efficiency of total system by utilizing the making the operating range for increasing vehicle of minimizing PTC.
In addition, in dehumidification mode, manufacturing cost can being reduced by reducing the length be used for the connecting pipe of evaporimeter supply cold-producing medium, to be reduced at the layout of puffer indoor, making it possible to carry out room for improvement availability and the loss reducing internal pressure by simplifying encapsulation.
In addition, because can make for preventing unnecessary power consumption and improving the efficiency of total system, so the distance using same charge to travel can be increased by what reduce ptc heater.
By include in accompanying drawing herein and subsequently together with accompanying drawing for illustration of the detailed description of the invention of some principle of the present invention, the further feature that method and apparatus of the present invention has and advantage more specifically will become clear or be illustrated.
Accompanying drawing explanation
Fig. 1 is the block diagram of the configuration of the heat pump for vehicle illustrated according to an illustrative embodiment of the invention.
Fig. 2 is the schematic diagram of the dehumidification mode in the heating mode of the heat pump for vehicle illustrated according to an illustrative embodiment of the invention.
Fig. 3 is the block diagram of the configuration of the heat pump for vehicle illustrated according to another illustrative embodiments of the present invention.
Fig. 4 illustrates the view according to the dehumidification mode in the heating mode of the heat pump for vehicle of another illustrative embodiments of the present invention.
Should understand, appended accompanying drawing not shows the technique of painting slightly simplified of the exemplifying various feature of general principle of the present invention pari passu.Specific design feature of the present invention disclosed herein comprises such as concrete size, direction, position and profile and will partly be determined by the environment specifically will applied and use.
In these figures, run through several figures of accompanying drawing, Reference numeral quotes equally or equivalent parts of the present invention.
Detailed description of the invention
Different embodiment of the present invention will be described below in detail, in the accompanying drawings with in following description the example of these embodiments be shown.Although the present invention combines with illustrative embodiments and is described, should understand, this description not intended to be limits the invention to those illustrative embodiments.On the contrary, the present invention is intended to not only cover these illustrative embodiments, and covers and can be included in various replacements within the spirit and scope of the present invention that limited by claims, amendment, equivalents and other embodiment.
Below with reference to the accompanying drawings illustrative embodiments of the present invention is described in detail.
First, illustrative embodiments described herein and the configuration shown in accompanying drawing are most preferably illustrative embodiments of the present invention, but also not exclusively cover spirit of the present invention, therefore, should be understood to, also exist and can replace their the various equivalent form of value and amendment when applying.
In whole description, contrary except clearly stating the meaning, otherwise the third person form that word " comprises " and such as " comprise " or the present participle form of " comprising " will be understood to imply the element comprising statement, but do not get rid of any other element.
In addition, term used herein " ... until ", " ... mechanism ", " ... part ", " ... component " etc. mean to perform the unit that element is included of at least one or multiple function or operation.
Fig. 1 is the block diagram of the configuration of the heat pump for vehicle illustrated according to an illustrative embodiment of the invention, and Fig. 2 is the schematic diagram of the dehumidification mode in the heating mode of the heat pump for vehicle illustrated according to an illustrative embodiment of the invention.
With reference to accompanying drawing, when needing internal moisture removal during heating mode in the winter time, by performing heating mode and dehumidification mode when even not changing to refrigeration mode, the reduction of noise and the durability caused due to the frequent change between heating mode and refrigeration mode in the related can be prevented for the heat pump 10 for vehicle according to an illustrative embodiment of the invention in electric vehicle, and improve the efficiency of total system by utilizing the making the operating range for increasing vehicle of minimizing PTC.
For this purpose, heat pump 10 (as shown in Figure 1) according to an illustrative embodiment of the invention comprises outdoor condenser 13, expansion valve 15, evaporimeter 17, compressor 19 and indoor condenser 21, according to the heating mode in electric vehicle and refrigeration mode, utilize the circulation of cold-producing medium, they connect by refrigerant tubing 11 heating/the cooling controlling vehicle interior.
Outdoor condenser 13 is arranged in before the radiator before engine room, and utilizes with the heat exchange of extraneous air by condensation of refrigerant, and expansion valve 15 makes to be expanded by the cold-producing medium of indoor condenser 13 condensation.
Evaporimeter 17 makes the cold-producing medium evaporation of being expanded by expansion valve 15, and compressor 19 compresses the cold-producing medium evaporated by evaporimeter 17, and the elementary condensation of cold-producing medium that indoor condenser 21 is connected with outdoor condenser 13 and will be compressed by compressor 19.
The heat pump 10 for vehicle according to an illustrative embodiment of the invention comprises the first valve 27, refrigerator 29, connecting pipe 31 and the second valve 33 further.
First valve 27 is arranged in the refrigerant tubing 11 between outdoor condenser 13 and expansion valve 15.
Between evaporimeter 17 and compressor 19, cooling water is used to be connected with the first valve 27 by refrigerant tubing 11 as the refrigerator 29 of the water-cooled of cooling medium, and by controlling the temperature of cold-producing medium with cooling water heat-shift, this cooling water has the temperature raised by cooling electronic apparatus.
Second valve 27 can be three-way valve, and therefore it will be delivered in refrigerator 29 by the cold-producing medium of outdoor condenser 13 condensation, or is not delivered in expansion valve 15 by refrigerator 29.
In addition, refrigerator 29 can be arranged between evaporimeter 17 and compressor 19, and is connected with accumulator 23 by refrigerant tubing 11, and the cold-producing medium of gaseous state is only supplied to compressor 19 by accumulator 23.
Therefore, accumulator 23 is separated in the cold-producing medium through refrigerator 29 and is being flowed into the liquid refrigerant in the gaseous refrigerant of compressor 19 by evaporimeter 17, supply gaseous refrigerant is to compressor 19, and retain liquid refrigerant then vaporized and supply back to compressor 19, make it only gaseous refrigerant is fed to compressor 19.Therefore, the malfunctioning and fault of compressor 19 is prevented, and efficiency and durability are improved.
In this illustrative embodiments, refrigerant tubing 11 may further include the aperture 25 between outdoor condenser 13 and indoor condenser 21.
In this illustrative embodiments, in dehumidification mode, connecting pipe 31 optionally allows some cold-producing mediums to enter evaporimeter 17, and these cold-producing mediums flow into refrigerator 29 by the operation of the first valve 27, and the second valve 33 is arranged in connecting pipe 31.
Refrigerant tubing 11 between the first valve 27 and refrigerator 29 is connected with the refrigerant tubing 11 between expansion valve 15 and evaporimeter 17 by connecting pipe 31.
Second valve 33 can be the backflow of check-valves, its anti-fluid, flows back to refrigerator 29 for preventing cold-producing medium from evaporimeter 17 by connecting pipe 31.
The operation with the dehumidification mode of the heat pump 100 for vehicle of above-mentioned configuration according to an illustrative embodiment of the invention and effect are described below in detail.
First, as shown in Figure 2, be equipped with the heat pump 10 with above-mentioned configuration electric vehicle in the heating mode in winter, the cooling water with the temperature raised due to the waste heat source of cooling electronic apparatus flows into refrigerator 29, then cooled by radiator and extraneous air heat-shift, and supply back to electronic equipment, thus circulate.
In this process, the first valve 27 keeps the refrigerant tubing 11 be connected with refrigerator 29 to open, and makes the cold-producing medium of the cryogenic condensation from outdoor condenser 13 be supplied to refrigerator 29, and keeps the refrigerant tubing 11 be connected with expansion valve 15 to close.
Therefore, cold-producing medium be able to condensation under low temperature and low pressure by the extraneous air heat-shift of outdoor condenser 13, then cold-producing medium flows into refrigerator 29 by the refrigerant tubing 11 be connected with refrigerator 29.
In refrigerator 29, the cold-producing medium of flowing flows into compressor 19 by accumulator 23, this cold-producing medium has the temperature of rising by the cooling water heat-shift that raises with temperature, and the refrigerant compression with the temperature of rising is the gaseous refrigerant of high temperature and high pressure by compressor 19, and be supplied to indoor condenser 21.
Indoor condenser 21 is arranged in HVAC (heating, ventilate and air conditioning) module and the temperature of extraneous air is risen by indoor condenser 21, make the warm extraneous air by the selective operation of ptc heater be supplied to the inside of vehicle, thus produce heat.
Afterwards, by discharging the cold-producing medium of heat with through the extraneous air heat-shift flowing into inside while indoor condenser 21, low temperature is changed into and the cold-producing medium of low pressure by aperture 25, then this cold-producing medium by with the extraneous air heat-shift through outdoor condenser 13 and carry out condensation, and to supply back to refrigerator 29.Therefore, vehicle heats by repeating said process.
When there is the demand to dehumidification mode caused due to the window in vehicle producing moisture during heating mode, by opening the second valve 33, some inflow by connecting pipe 31 in the cold-producing medium of refrigerator 29 are fed through evaporimeter 17, and heating mode keeps running simultaneously.
Therefore, before extraneous air is supplied to refrigerator 29, the extraneous air flowed in HVAC module is sent directly to the window in vehicle, makes it eliminate moisture, this extraneous air has the temperature of decline by evaporimeter 17, have low temperature and the cold-producing medium of low pressure among evaporimeter 17.
Thus, when needing to run with dehumidification mode during heating mode in the winter time, because the heat pump 10 for vehicle according to an illustrative embodiment of the invention can perform dehumidification mode during heating mode, even without the need to such as in the related after stopping heating mode, change into refrigerating mode, so it can prevent due to the decline of frequent change and the noise that causes and durability between heating mode and refrigeration mode.
Fig. 3 is the block diagram of the configuration of the heat pump for vehicle illustrated according to another illustrative embodiments of the present invention, and Fig. 4 illustrates the schematic diagram according to the dehumidification mode in the heating mode of the heat pump for vehicle of another illustrative embodiments of the present invention.
With reference to figure 3, heat pump 100 (as shown in Figure 3) according to another illustrative embodiments of the present invention comprises outdoor condenser 113, expansion valve 115, evaporimeter 117, compressor 119 and indoor condenser 121, according to the heating mode in electric vehicle and refrigeration mode, utilize the circulation of cold-producing medium, they connect by refrigerant tubing 111 heating/the cooling controlling vehicle interior.
Indoor condenser 113 is arranged in before the radiator before engine room, and utilizes with the heat exchange of extraneous air by condensation of refrigerant, and expansion valve 115 makes to be expanded by the cold-producing medium of indoor condenser 113 condensation.
Evaporimeter 117 makes the cold-producing medium evaporation of being expanded by expansion valve 115, and compressor 119 compresses the cold-producing medium evaporated by evaporimeter 117, and the elementary condensation of cold-producing medium that indoor condenser 121 is connected with outdoor condenser 113 and will be compressed by compressor 119.
The first valve 127, refrigerator 129, connecting pipe 131 and the second valve 133 is comprised further according to the heat pump 100 for vehicle of another illustrative embodiments of the present invention.
First valve 127 is arranged in the refrigerant tubing 111 between outdoor condenser 113 and expansion valve 115.
In this illustrative embodiments, refrigerator 129 is connected with the accumulator 123 between evaporimeter 117 and compressor 119, is arranged between the first valve 127 and accumulator 123, and controls the temperature of cold-producing medium by heat-shift.
Second valve 127 can be three-way valve, and therefore it will be delivered in refrigerator 129 by the cold-producing medium of outdoor condenser 113 condensation, or is not delivered in expansion valve 115 by refrigerator 129.
Use cooling water as the refrigerator 129 of the water-cooled of cooling medium, by controlling the temperature of cold-producing medium with cooling water heat-shift, this cooling water has the temperature raised by cooling electronic apparatus.
Accumulator 123 is separated in the cold-producing medium through refrigerator 129 and is being flowed into the liquid refrigerant in the gaseous refrigerant of compressor 119 by evaporimeter 117, supply gaseous refrigerant is to compressor 119, and retain liquid refrigerant then vaporized and supply back to compressor 119, make it only gaseous refrigerant is fed to compressor 119.Therefore, the malfunctioning and fault of compressor 119 is prevented, and efficiency and durability are improved.
In this illustrative embodiments, connecting pipe 131 is connected between expansion valve 115 and evaporimeter 117, refrigerant tubing 111 between outdoor condenser 113 and indoor condenser 121, optionally to deliver to evaporimeter 117 by some inflow in the cold-producing medium of outdoor condenser 113 in dehumidification mode.
Condensing agent pipeline 111 has the aperture 125 between outdoor condenser 113 and indoor condenser 121 further, and connecting pipe 133 can be connected with the refrigerant tubing 111 between aperture 125 and outdoor condenser 113.
Second valve 133 is arranged in connecting pipe 131.
Second valve 133 can be check-valves, flows back to refrigerator 129 for preventing cold-producing medium from evaporimeter 117 by connecting pipe 131.
The operation with the dehumidification mode of the heat pump 100 for vehicle of above-mentioned configuration according to another illustrative embodiments of the present invention and effect have been described below in detail.
First, as shown in Figure 4, according to another implementation of the invention, be equipped with the heat pump 100 with above-mentioned configuration electric vehicle in the heating mode in winter, the cooling water with the temperature raised due to the waste heat source of cooling electronic apparatus flows into refrigerator 129, then cooled by radiator and extraneous air heat exchange, and supply back to electronic equipment, thus circulate.
In this process, first valve 127 keeps the refrigerant tubing 111 be connected with refrigerator 129 to open, make the cold-producing medium of the cryogenic condensation from outdoor condenser 113 be supplied to refrigerator 129, and keep the refrigerant tubing 111 be connected with expansion valve 115 to close.
Therefore, cold-producing medium be able to condensation under low temperature and low pressure by the extraneous air heat-shift of outdoor condenser 113, then cold-producing medium flows into refrigerator 129 by the refrigerant tubing 111 be connected with refrigerator 129.
In refrigerator 129, the cold-producing medium of flowing flows into compressor 119 by accumulator 123, this cold-producing medium has the temperature of rising by the cooling water heat-shift that raises with temperature, and the refrigerant compression with the temperature of rising is the gaseous refrigerant of high temperature and high pressure by compressor 119, and be supplied to outdoor condenser 121.
Indoor condenser 121 is arranged in HVAC (heating, ventilate and air conditioning) module and the temperature of extraneous air is risen by indoor condenser 121, make the warm extraneous air by the selective operation of ptc heater be supplied to the inside of vehicle, thus produce heat.
Afterwards, by changing into low temperature and the cold-producing medium of low pressure with the cold-producing medium of discharging heat through flowing into inner extraneous air heat-shift while indoor condenser 121 by aperture 125, then this cold-producing medium by with the extraneous air heat-shift through outdoor condenser 113 and carry out condensation, and to supply back to refrigerator 29.Therefore, vehicle heats by repeating said process.
When there is the demand to dehumidification mode caused due to the window in vehicle producing moisture during heating mode, the second valve 133 is opened, and heating mode keeps running simultaneously.
Therefore, the cold-producing medium from indoor condenser 121 flows into evaporimeter 117 through aperture 125 and some inflow in the condensing agent of outdoor condenser 113 by connecting pipe 131.
In addition, condenser 121 is discharged and the cold-producing medium of low temperature through aperture 125 and low pressure flows into evaporimeter indoor, make the temperature of the extraneous air flowed in HVAC module by wherein having the evaporimeter of cold-producing medium and declining and flow directly to the window in vehicle, therefore, moisture is which obviated.
Therefore, when needing internal moisture removal during heating mode in the winter time, by using the heat pump 1 and 100 for vehicle be used in electric vehicle according to an exemplary embodiment of the present invention and another illustrative embodiments, by performing heating mode and dehumidification mode when even not changing to refrigeration mode, the reduction of noise and the durability caused due to the frequent change between heating mode and refrigeration mode in the related can be prevented, and the efficiency of total system is improved by utilizing the making the operating range for increasing vehicle of minimizing PTC.
In addition, in dehumidification mode, manufacturing cost can be reduced by the length reducing to be used for supplying to evaporimeter 17 and 117 connecting pipe 31 and 131 of cold-producing medium, to be reduced at the layout of puffer indoor, make it possible to carry out room for improvement availability and the loss reducing internal pressure by simplifying encapsulation.
In addition, because can make for preventing unnecessary power consumption and improving the efficiency of total system, so the operating range using same charge can be increased by what reduce ptc heater.
Conveniently explain and accurately limit claims, term " on ", D score, " interior " and " outward " be used to the position of these features shown by reference accompanying drawing to describe the feature of illustrative embodiments.
The description presented concrete illustrative embodiments of the present invention is above for the purpose of illustration and description.Description is above not intended to become milli exhaustively, and being also not intended to the present invention to be restricted to disclosed precise forms, obviously, is all possible according to above-mentioned speech many modifications and variations.The description of front surface is not wanted to become milli exhaustively, and the present invention neither be wanted to be restricted to disclosed precise forms, and obviously, it is all possible for much changing according to above-mentioned instruction and change.Scope of the present invention is intended to be limited by claims and the equivalent form of value thereof.
Claims (12)
1., for a heat pump for electric vehicle, it is by controlling the cooling/heating of electric vehicle inside according to heating mode and refrigeration mode circulating refrigerant, described heat pump comprises:
Outdoor condenser, described outdoor condenser is by described condensation of refrigerant;
Expansion valve, described expansion valve fluid is connected to described outdoor condenser and makes to be expanded by the cold-producing medium of described outdoor condenser condenses;
Evaporimeter, described evaporimeter fluid is connected to described expansion valve and the cold-producing medium expanded by described expansion valve is evaporated;
Compressor, described compressor fluid is connected to described evaporimeter and compresses the cold-producing medium by described evaporator evaporation;
Indoor condenser, described indoor condenser is by by the elementary condensation of the cold-producing medium of described compressor compresses, and wherein said indoor condenser is connected with described outdoor condenser, described expansion valve, described evaporimeter and described compressor by refrigerant tubing;
First valve, described first valve arrangement is in the first refrigerant tubing of the described refrigerant tubing between described outdoor condenser and described expansion valve;
Refrigerator, between described evaporimeter and compressor, described refrigerator is connected with described first valve by second refrigerant pipeline, and controls the temperature of described cold-producing medium by heat-shift;
Connecting pipe, in dehumidification mode, described connecting pipe optionally allow in described cold-producing medium some flow into described refrigerator; And
Second valve, described second valve arrangement is in described connecting pipe.
2. the heat pump for electric vehicle according to claim 1, the second refrigerant pipeline be arranged between described first valve and described refrigerator is connected with the 3rd refrigerant tubing be arranged between described expansion valve and described evaporimeter by wherein said connecting pipe.
3. the heat pump for electric vehicle according to claim 2, wherein said refrigerator is connected with accumulator by described 3rd refrigerant tubing, described accumulator is arranged between described evaporimeter and described compressor, and wherein said 3rd refrigerant tubing connects described evaporimeter, described accumulator, described compressor and described indoor condenser.
4. the heat pump for electric vehicle according to claim 1, wherein said second valve is check-valves, and described second valve prevents described cold-producing medium from flowing back to described refrigerator from described evaporimeter by described connecting pipe.
5. the heat pump for electric vehicle according to claim 1, wherein said first valve is three-way valve.
6. the heat pump for electric vehicle according to claim 1,4th refrigerant tubing of wherein said refrigerant tubing has the aperture between described outdoor condenser and indoor condenser further, and described outdoor condenser is connected with described indoor condenser by wherein said 4th refrigerant tubing.
7. the heat pump for electric vehicle according to claim 1, wherein:
In heating mode, by the operation of described first valve, the cold-producing medium from described outdoor condenser is not delivered in described expansion valve and described evaporimeter, but delivers in described refrigerator, then rises along with temperature and delivers in described compressor, and
When needing described dehumidification mode during described heating mode, by opening described second valve, some inflow in the cold-producing medium of described refrigerator are delivered in described evaporimeter by described connecting pipe, and described heating mode keeps running simultaneously.
8. for a heat pump for electric vehicle, it controls the cooling/heating of electric vehicle inside according to heating mode and refrigeration mode, and described heat pump comprises:
Outdoor condenser, described outdoor condenser is by condensation of refrigerant;
Expansion valve, described expansion valve fluid is connected to described outdoor condenser and makes to be expanded by the cold-producing medium of described outdoor condenser condenses;
Evaporimeter, described evaporimeter fluid is connected to described expansion valve and the cold-producing medium expanded by described expansion valve is evaporated;
Compressor, described compressor fluid is connected to described evaporimeter and compresses the cold-producing medium by described evaporator evaporation;
Indoor condenser, described indoor condenser is by by the elementary condensation of the cold-producing medium of described compressor compresses, and wherein said indoor condenser is connected with described outdoor condenser, described expansion valve, described evaporimeter and described compressor by refrigerant tubing;
First valve, described first valve arrangement is in the first refrigerant tubing of the described refrigerant tubing between described outdoor condenser and described expansion valve;
Refrigerator, described refrigerator is connected with the accumulator between described evaporimeter and described compressor, and described refrigerator is arranged between described first valve and described accumulator, and is controlled the temperature of described cold-producing medium by heat-shift;
Connecting pipe, described connecting pipe is connected to the second refrigerant pipeline of described refrigerant tubing and is connected to the 3rd refrigerant tubing of described refrigerant tubing, described second refrigerant pipe arrangement is between described expansion valve and described evaporimeter, described 3rd refrigerant tubing is arranged between described outdoor condenser and described indoor condenser, optionally some inflow in the cold-producing medium of described outdoor condenser are delivered to described evaporimeter in described dehumidification mode; And
Second valve, described second valve arrangement is in described connecting pipe.
9. the heat pump for electric vehicle according to claim 8, wherein said second valve is check-valves, and described second valve prevents the cold-producing medium in described connecting pipe from flowing back to described refrigerator from described evaporimeter.
10. the heat pump for electric vehicle according to claim 8, wherein said first valve is three-way valve.
11. heat pumps for electric vehicle according to claim 8, wherein said 3rd refrigerant tubing is included in the aperture between described outdoor condenser and described indoor condenser, and described connecting pipe is connected with described 3rd refrigerant tubing between described aperture and outdoor condenser.
12. heat pumps for electric vehicle according to claim 8, wherein:
In heating mode, by the operation of described first valve, the cold-producing medium from described outdoor condenser is not delivered in described expansion valve and described evaporimeter, but delivers in described refrigerator, then rises along with temperature and delivers in described compressor, and
When needing described dehumidification mode during described heating mode, by opening described second valve, some inflow in the cold-producing medium of described refrigerator are delivered in described evaporimeter by described connecting pipe, and described heating mode keeps running simultaneously.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR20130148737 | 2013-12-02 | ||
| KR10-2013-0148737 | 2013-12-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104676954A true CN104676954A (en) | 2015-06-03 |
Family
ID=53058586
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410432153.3A Pending CN104676954A (en) | 2013-12-02 | 2014-08-28 | Heat pump system for vehicle |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US20150153078A1 (en) |
| CN (1) | CN104676954A (en) |
| DE (1) | DE102014109696A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105128622A (en) * | 2015-08-21 | 2015-12-09 | 苏州斯卡柏通讯技术有限公司 | Electric vehicle heat pump air-conditioning system |
| CN106853756A (en) * | 2015-12-09 | 2017-06-16 | 现代自动车株式会社 | For the air-conditioning system of vehicle |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5999637B2 (en) * | 2012-11-09 | 2016-09-28 | サンデンホールディングス株式会社 | Air conditioner for vehicles |
| JP6223753B2 (en) * | 2013-09-04 | 2017-11-01 | サンデンホールディングス株式会社 | Air conditioner for vehicles |
| JP6271195B2 (en) * | 2013-09-18 | 2018-01-31 | サンデンホールディングス株式会社 | Air conditioner for vehicles |
| JP6207958B2 (en) * | 2013-10-07 | 2017-10-04 | サンデンホールディングス株式会社 | Air conditioner for vehicles |
| CN106938601B (en) * | 2017-03-23 | 2023-05-26 | 中国科学院广州能源研究所 | Electric automobile heat pump air conditioning system and control method thereof |
| CN107747832B (en) * | 2017-11-30 | 2023-10-13 | 吉林大学 | Electric automobile heat pump air conditioning system and control method thereof |
| CN112169364B (en) * | 2020-09-29 | 2021-12-24 | 江苏博颂化工科技有限公司 | Fractionating tower heat pump system adopting external circulating working medium |
| DE102021101975A1 (en) | 2021-01-28 | 2022-07-28 | Airbus Operations Gmbh | Refrigeration system for two-phase refrigerant |
| CN115325783B (en) * | 2022-07-20 | 2023-08-22 | 广西电网有限责任公司电力科学研究院 | Control system of heat pump drying system for preserved fruits |
| CN115388573B (en) * | 2022-08-03 | 2023-12-08 | 浙江吉利控股集团有限公司 | Heat exchange system for vehicle and vehicle with heat exchange system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4114589B2 (en) * | 2003-10-22 | 2008-07-09 | 株式会社デンソー | Air conditioner for vehicles |
-
2014
- 2014-07-09 US US14/327,161 patent/US20150153078A1/en not_active Abandoned
- 2014-07-10 DE DE102014109696.7A patent/DE102014109696A1/en not_active Withdrawn
- 2014-08-28 CN CN201410432153.3A patent/CN104676954A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105128622A (en) * | 2015-08-21 | 2015-12-09 | 苏州斯卡柏通讯技术有限公司 | Electric vehicle heat pump air-conditioning system |
| CN106853756A (en) * | 2015-12-09 | 2017-06-16 | 现代自动车株式会社 | For the air-conditioning system of vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102014109696A1 (en) | 2015-06-03 |
| US20150153078A1 (en) | 2015-06-04 |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150603 |