CN201729046U - Liquid nitrogen air conditioner of motor vehicle - Google Patents
Liquid nitrogen air conditioner of motor vehicle Download PDFInfo
- Publication number
- CN201729046U CN201729046U CN2010202512196U CN201020251219U CN201729046U CN 201729046 U CN201729046 U CN 201729046U CN 2010202512196 U CN2010202512196 U CN 2010202512196U CN 201020251219 U CN201020251219 U CN 201020251219U CN 201729046 U CN201729046 U CN 201729046U
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- liquid nitrogen
- heat exchanger
- self
- conditioning unit
- conduit
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Abstract
The utility model discloses a liquid nitrogen air conditioner of a motor vehicle, which comprises a liquid nitrogen storage tank, a valve and a heat exchanger. An outlet of the liquid nitrogen storage tank is communicated with an inlet of the heat exchanger, an outlet of the heat exchanger is a nitrogen discharge opening after heat exchange between liquid nitrogen and air in the vehicle, the nitrogen discharge opening is located outside the vehicle, the heat exchanger is communicated with the inner environment of the vehicle, and the valve is disposed on a pipeline between the liquid nitrogen storage tank and the heat exchanger. The liquid nitrogen air conditioner adopts liquid nitrogen as a power source, simultaneously is utilized as a working medium realizing heat exchange with the air in the vehicle, does not consume diesel oil, gasoline or electric energy in the motor vehicle, reduces unnecessary energy loss links, greatly increases efficiency, meets the energy saving requirement, can greatly reduce labor intensity of service staff of electric automobiles, simultaneously lowers investment cost and service cost, and decreases total service cost. In addition, nitrogen discharged from the liquid nitrogen air conditioner can not pollute environments, thereby being capable of realizing environmental protection.
Description
Technical field
The utility model relates to refrigeration technology field, particularly a kind of liquid nitrogen conditioning unit of self-propelled vehicle.
Background technology
Traditional electric automobile is generally by series connection battery pack energy storage power supply, because storage battery energy is than little, service life is short, reasons such as charging duration is long, electronlmobil is under the situation of not opening air-conditioning in the car, and the mileage number that it travelled is less than the travelled distance (combustion engine bus refuel once can travel about 300km) of similar internal-combustion engines vehicle greatly, and electronlmobil is under the situation of having opened air-conditioning, because the power consumption of storage battery increases, make electric automobile during traveling mileage number still less.
At present, the conditioning unit of electronlmobil is to drive refrigerating compressor by electrical motor by transmission device to rotate refrigeration, and its concrete refrigeration principle is: working medium is (as R
22) in bounded system, circulate, utilize the decalescence refrigeration, change the rotating speed of refrigerating compressor, with the flow velocity and the flow of change working medium, thus the purpose that realizes regulating cryogenic temperature.In above-mentioned process of refrigerastion, the shared energy consumption of refrigerating compressor often reaches 25～30% of the total electric energy of car load, and this has just caused the appearance of following problem:
With the electric bus is example, electric bus needs 280～300km operation mileage that travels every day, about 150～200km but the battery charging in the car once only can travel, owing to need spend long charging duration to battery charging, so only can't satisfy operating needs with a group storage battery group; Under the situation of not opening air-conditioning, electric bus will be changed battery pack 2 times every day, for operation department, such working strength is an acceptable, but, electric bus needs change storage battery 3 times every day under the situation of having opened air-conditioning, and the department's working strength that causes operating increases; And, because each car need use 3 group storage batteries, correspondingly needing 3 cover charging equipments, this has also just increased investment cost and Operating Expenses, and its operating cost will reach the operation cost level of fuel-engined vehicle.
In addition, the loss of existing electronlmobil refrigeration modes is 5 grades (loss of electrical motor and losses of refrigerating compressor in the loss when comprising loss, the discharge of battery charge loss, charging equipment, the conditioning unit), this shows, the refrigeration of existing electronlmobil conditioning unit is high loss low efficiency, and reactive loss reaches more than 50%; And the conditioning unit that internal-combustion engines vehicle uses because the efficient of combustion engine is very low, drags refrigerating compressor by combustion engine and rotates refrigeration, is similarly high loss low efficiency, under the situation of opening air-conditioning, and total consumption increase 25～30%.Therefore, the conditioning unit in the existing self-propelled vehicle and do not meet the demand for development of energy saving type industry.
The utility model content
The purpose of this utility model is to provide the liquid nitrogen conditioning unit of the high efficiency self-propelled vehicle of a kind of low-loss, for electronlmobil, can reduce operation staff's labour intensity greatly, reduces investment cost and Operating Expenses simultaneously, reduces overall operating cost.
The purpose of this utility model realizes by following technical measures: a kind of liquid nitrogen conditioning unit of self-propelled vehicle, it is characterized in that comprising liquid nitrogen storage tank, valve and heat exchanger, the outlet of described liquid nitrogen storage tank is communicated with the import of heat exchanger, the outlet of described heat exchanger is the nitrogen discharge orifice after the air heat exchange in liquid nitrogen and the car, this discharge orifice is positioned at outside the car body, and described heat exchanger communicates with environment inside car; Described valve is located on the pipeline between described liquid nitrogen storage tank and the heat exchanger.
The utility model adopts the propulsion source of liquid nitrogen as conditioning unit, simultaneously as with car in air carry out the working medium of interchange of heat, nitrogen after the heat exchange is discharged outside the car body by the nitrogen discharge orifice, the utility model does not consume diesel oil or the gasoline in the self-propelled vehicle, do not consume the electric energy of storage battery in the electronlmobil yet, reduce middle unnecessary waste of power link, improved efficient greatly, met the energy conservation requirement; The utility model can reduce electronlmobil operation staff's labour intensity greatly, reduces investment cost and Operating Expenses simultaneously, reduces overall operating cost; In addition, the nitrogen that the utility model is discharged does not pollute the environment, and therefore can realize the purpose of energy-conserving and environment-protective.
As a kind of embodiment of the present utility model, described heat exchanger is made up of conduit and several parallel fin, and described radiating gill is sleeved on the body of described conduit.Liquid nitrogen flows in heat exchanger, by with the contacting of pipe inner wall, heat is sent on the outer wall of conduit, conduct to radiating gill again, air carries out heat exchange in radiating gill and the car, thereby realizes freezing.
As a kind of improvement of the present utility model, being shaped as of described conduit is snakelike, and described conduit has two straight sections and a bending segment at least, and promptly conduit is " U " type, and described radiating gill is sleeved on the straight section of described conduit.Snakelike heat exchange tube can obtain better refrigeration.
As a kind of embodiment of the present utility model, described valve adopts temperature control electromagnetic, described temperature control electromagnetic is connected with attemperating unit, described attemperating unit comprises temperature sensor and control circuit, described temperature sensor is experienced vehicle interior temperature, when vehicle interior temperature was higher than or be lower than design temperature, control circuit was controlled the keying of described temperature control electromagnetic.Realize the automatically regulating refrigeration of vehicle interior temperature.
As another kind of embodiment of the present utility model, described valve adopts electromagnetic valve, and described electromagnetic valve is connected with the control circuit with timing function, and the every certain interval of time of described control circuit control electromagnetic valve is opened or closed.
As a kind of improvement of the present utility model, the conditioning unit of described self-propelled vehicle comprises also and is used for cold air is dispersed in blower fan in the car that described blower fan is near described heat exchanger setting.
As embodiment of the present utility model, described conduit is made by copper product; Described radiating gill adopts fin, and the material of described fin is an aluminium.
As the preferred a kind of embodiment of the utility model, described heat exchanger is installed in the top in the car body.Can also be installed on other position in the car according to actual conditions.
Compared with prior art, the utlity model has following significant effect:
(1) the utility model adopts liquid nitrogen as propulsion source and refrigeration work medium, has substituted existing self-propelled vehicle and has adopted the propulsion source as conditioning unit such as fuel oil, gasoline, electric energy, has reduced the waste of power of intermediate link, has improved efficiency of energy utilization.
(2) for electronlmobil, greatly reduce operation staff's labour intensity, reduced investment cost and Operating Expenses simultaneously, reduced operating cost.
(3) after liquid nitrogen of the present utility model carries out interchange of heat, discharge outside the car, do not pollute the environment energy-conserving and environment-protective with the nitrogen form.
(4) temperature control electromagnetic can be carried out according to variation of temperature in the car body and open and close, and has both guaranteed the cryogenic temperature in the car, has also reduced the loss of liquid nitrogen, realizes high efficiency refrigerating function.
(5) be arranged near the blower fan of heat exchanger, the cold air that has carried out interchange of heat can be dispelled and be uniformly distributed in the car body uniform decrease in temperature effect in the realization car.
(6) the utility model is simple in structure, and is practical, can generally be applicable on the self-propelled vehicle, and when being particularly useful on the electronlmobil, beneficial effect is more obvious.
Description of drawings
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Fig. 1 is a structural representation of the present utility model.
The specific embodiment
As shown in Figure 1, it is the liquid nitrogen conditioning unit of a kind of self-propelled vehicle of the utility model, comprise liquid nitrogen storage tank 1, valve 2 and heat exchanger, the outlet of liquid nitrogen storage tank 1 is communicated with the import of heat exchanger, the outlet of heat exchanger is the nitrogen discharge orifice 6 after the air heat exchange in liquid nitrogen and the car, this discharge orifice 6 is positioned at outside the car body, and heat exchanger is installed in the top in the car body, and heat exchanger communicates with environment inside car; Valve 2 is located on the pipeline between liquid nitrogen storage tank 1 and the heat exchanger.
Heat exchanger is made up of conduit 4 and several parallel fin 5, and conduit 4 is made radiating gill 5 employing fins by copper product, the material of fin is an aluminium, and in the present embodiment, conduit 4 has two straight sections and a bending segment, be that conduit 4 is " U " type, fin is sleeved on the straight section of conduit 4; In other embodiments, conduit 4 be shaped as snakelike.
Valve 2 adopts temperature control electromagnetic, temperature control electromagnetic is connected with attemperating unit, and attemperating unit comprises temperature sensor and control circuit, and temperature sensor is experienced vehicle interior temperature, when vehicle interior temperature is higher than or be lower than design temperature, the keying of control circuit control temperature control electromagnetic.
In other embodiment, valve also can adopt common electromagnetic valve, and this electromagnetic valve is connected with the control circuit with timing function, and the every certain interval of time of control circuit control electromagnetic valve is opened or closed.
Be provided with blower fan 7 near heat exchanger, it can dispel cold air and be uniformly distributed in the car, makes the refrigeration that reaches uniform decrease in temperature in the car.
Working process of the present utility model is: when temperature sensor is subjected to vehicle interior temperature to be higher than design temperature, control circuit control temperature control electromagnetic is opened, the utility model is started working, in the liquid nitrogen inflow catheter in the liquid nitrogen storage tank, carry out interchange of heat by the tube wall of conduit and the hot air in fin and the car body, reduce air themperature, realize refrigeration in the car body, become nitrogen behind the heat of liquid nitrogen absorption hot air, outside the nitrogen discharge orifice is discharged car; When temperature sensor was experienced vehicle interior temperature and is lower than design temperature, control circuit control temperature control electromagnetic was closed, and realizes the adjusting of cryogenic temperature, finishes a working cycle process thus.
Embodiment of the present utility model is not limited thereto, according to foregoing of the present utility model, ordinary skill knowledge and customary means according to this area, do not breaking away under the above-mentioned basic fundamental thought of the utility model prerequisite, heat exchanger of the present utility model also can adopt other existing heat exchanger, and the kind of valve can be selected according to actual condition of service; The installation site of the utility model in car also can be determined as the case may be; In addition, except conduit be snakelike, concrete shape can decide according to required cooling-down effect.Therefore, the utility model can also be made modification, replacement or the change of other various ways, all drops within the utility model rights protection scope.
Claims (8)
1. the liquid nitrogen conditioning unit of a self-propelled vehicle, it is characterized in that: comprise liquid nitrogen storage tank, valve and heat exchanger, the outlet of described liquid nitrogen storage tank is communicated with the import of heat exchanger, the outlet of described heat exchanger is the nitrogen discharge orifice after the air heat exchange in liquid nitrogen and the car, this discharge orifice is positioned at outside the car body, and described heat exchanger communicates with environment inside car; Described valve is located on the pipeline between described liquid nitrogen storage tank and the heat exchanger.
2. the liquid nitrogen conditioning unit of self-propelled vehicle according to claim 1, it is characterized in that: described heat exchanger is made up of conduit and several parallel fin, and described radiating gill is sleeved on the body of described conduit.
3. the liquid nitrogen conditioning unit of self-propelled vehicle according to claim 2, it is characterized in that: being shaped as of described conduit is snakelike, described conduit has two straight sections and a bending segment at least, and promptly conduit is " U " type, and described radiating gill is sleeved on the straight section of described conduit.
4. the liquid nitrogen conditioning unit of self-propelled vehicle according to claim 3, it is characterized in that: described valve adopts temperature control electromagnetic, described temperature control electromagnetic is connected with attemperating unit, described attemperating unit comprises temperature sensor and control circuit, described temperature sensor is experienced vehicle interior temperature, when vehicle interior temperature was higher than or be lower than design temperature, control circuit was controlled the keying of described temperature control electromagnetic.
5. the liquid nitrogen conditioning unit of self-propelled vehicle according to claim 3, it is characterized in that: described valve adopts electromagnetic valve, described electromagnetic valve is connected with the control circuit with timing function, and the every certain interval of time of described control circuit control electromagnetic valve is opened or closed.
6. the liquid nitrogen conditioning unit of self-propelled vehicle according to claim 1 is characterized in that: the conditioning unit of described self-propelled vehicle comprises also and is used for cold air is dispersed in blower fan in the car that described blower fan is near described heat exchanger setting.
7. according to the liquid nitrogen conditioning unit of claim 4 or 5 described self-propelled vehiclees, it is characterized in that: described conduit is made by copper product; Described radiating gill adopts fin, and the material of described fin is an aluminium.
8. the liquid nitrogen conditioning unit of self-propelled vehicle according to claim 1 is characterized in that: described heat exchanger is installed in the top in the car body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202512196U CN201729046U (en) | 2010-07-07 | 2010-07-07 | Liquid nitrogen air conditioner of motor vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202512196U CN201729046U (en) | 2010-07-07 | 2010-07-07 | Liquid nitrogen air conditioner of motor vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201729046U true CN201729046U (en) | 2011-02-02 |
Family
ID=43520205
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202512196U Expired - Fee Related CN201729046U (en) | 2010-07-07 | 2010-07-07 | Liquid nitrogen air conditioner of motor vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201729046U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107116994A (en) * | 2017-04-28 | 2017-09-01 | 重庆长安汽车股份有限公司 | A kind of interior space fast cooling system and method |
| CN107940574A (en) * | 2017-12-01 | 2018-04-20 | 上海原能细胞生物低温设备有限公司 | Liquid nitrogen cooling and dehumidifying device |
-
2010
- 2010-07-07 CN CN2010202512196U patent/CN201729046U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107116994A (en) * | 2017-04-28 | 2017-09-01 | 重庆长安汽车股份有限公司 | A kind of interior space fast cooling system and method |
| CN107940574A (en) * | 2017-12-01 | 2018-04-20 | 上海原能细胞生物低温设备有限公司 | Liquid nitrogen cooling and dehumidifying device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110202 Termination date: 20120707 |