CN102259572A - Automobile heating system - Google Patents
Automobile heating system Download PDFInfo
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- CN102259572A CN102259572A CN 201110092167 CN201110092167A CN102259572A CN 102259572 A CN102259572 A CN 102259572A CN 201110092167 CN201110092167 CN 201110092167 CN 201110092167 A CN201110092167 A CN 201110092167A CN 102259572 A CN102259572 A CN 102259572A
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Abstract
The invention relates to an automobile heating system. The automobile heating system comprises a heat exchange tube used for transferring heat by utilizing change of three states of matter as well as a heat exchange chamber and a three-way pipe, wherein the heat exchange tube is arranged in the heat exchanger chamber, the heat exchange chamber is provided with a blast blower, an air inlet and an air outlet, the three-way pipe comprises an air inlet pipe, a first air outlet pipe and a second air outlet pipe, the air inlet pipe is connected with an automobile exhaust pipe, the second air outlet pipe is provided with a second valve, the air inlet end of the first air outlet pipe is provided with a first valve, the air outlet end of the first air outlet pipe is provided with a suction blower, the evaporation end of the heat exchange tube penetrates the heat exchange chamber and then is connected with the first air outlet pipe, the evaporation end of the heat exchange tube is arranged between the suction blower and the first valve. The invention provides the automobile heating system with good heating effect and protective action to an engine and solves the problems that the traditional automobile heating system has poor heating effect and large volume and is inconvenient to mount.
Description
Technical field
The present invention relates to automobile HVAC field, relate in particular to the device that a kind of heat that mainly utilizes the tail gas of automobile carries out heating.
Background technology
At present, the main method of the heating of automobile has two kinds, a kind of for the air conditioning for automobiles main frame is arranged in instrument desk inside, hot gas duct is set in air-conditioner host, hot gas duct links to each other with the automobile engine cooling water pipe, utilize the heat of cooling water expansion tank to warm oneself, but this kind method has following deficiency, when water temperature is very high, can influence efficiency of engine and oil consumption, so cooling water temperature can not be too high, causes heating effect undesirable; Another kind is, mounting heat exchanger in the compartment, the tail gas of automobile is directly led in the heat exchanger to reach the purpose of heating, the weak point of this kind method is: in case leak, high temperature and the tail gas that contains hazardous substance can damage human body, tail gas can be tied dirt on the tube wall of heat exchanger, cause the heat exchange effect to descend.
In China Patent No. is ZL022635815, name is called in the patent documentation of " water-heating type vehicle energy saving heating arrangement " and discloses a kind of device that utilizes vehicle exhaust to warm oneself as thermal source, mainly comprise: heat exchanger, one end of heat exchanger is connected with air inlet pipe by a trumpet type interface, the other end of heat exchanger is connected with freeing pipe by a trumpet type interface, water circle device is installed on the heat exchanger, during use, by air inlet pipe and freeing pipe heat exchanger is connected between automobile exhaust pipe and the silencer, when passing through heat exchanger, heated in the water in the water circle device by vehicle exhaust, when circulating water passes through the radiator that is installed in the car heat is dispersed in the compartment, reaches the purpose of heating.But above heating method, any all be utilize heat conducting mode with the transfer of heat of cooling water expansion tank or tail gas in the compartment, the volume of heat-exchanger rig is bigger, and inconvenience and heat exchange weak effect are installed.
Summary of the invention
The invention provides a kind of heating effect good, driving engine is had the vehicle heating system of protective effect, solved the problem that existing vehicle heating installation heating effect difference and volume are big, inconvenience is installed.
Above technical matters solves by following technical proposal: a kind of vehicle heating system, comprise and utilize the three states of matters to change the heat exchanger tube that transmits heat, Heat Room and three-way pipe, described heat exchanger tube is positioned at described Heat Room, described Heat Room is provided with blowing engine, ventilation inlet and air outlet, described three-way pipe comprises air inlet pipe, first freeing pipe and second freeing pipe, described air inlet pipe is connected with automobile exhaust pipe, described second freeing pipe is provided with second valve, the inlet end of described first freeing pipe is provided with first valve, the outlet side of described first freeing pipe is provided with induced draft fan, the evaporation ends of described heat exchanger tube is connected with described first freeing pipe after passing described Heat Room, and the evaporation ends of described heat exchanger tube is between described induced draft fan and described first valve.Utilize heat exchanger tube that the three states of matters changes heat-shift filling heat-conducting medium and making in steel, copper, aluminum pipe, be specially and be sealed to form after heat exchanger tube is pumped into certain vacuum, working medium in the heat pipe pipe is formed by multiple inorganic active metal and compound thereof, working medium has extraordinary hot activity and heat sensitivity in the heat exchanger tube, meets heat and inhales, meets cold and put; This hot superconductive medium of heat exchanger tube is activated at a certain temperature, heat exchanger tube also transmits heat with molecule concussion phase deformation type, the superpower heat conductivility of heat exchanger tube makes the high a lot of of its thermal conductivity ratio common metal, do not decay during heat exchanger tube conduction energy and also can transmit (velocity of sound transmission) at a terrific speed, therefore can reduce the volume of heat exchange rig greatly; The evaporation ends of heat exchanger tube and automobile exhaust pipe are activated when linking together, the evaporation ends evaporation also absorbs heat, and condensation end releases energy in Heat Room, with the air in the heat transferred Heat Room, air themperature is risen, and the effect of blowing engine is to make Heat Room and the extraneous pressure reduction that forms, and cold air is heated in ventilation inlet enters Heat Room, hot air in the Heat Room flows out in air outlet, to heating in the compartment.Heat Room can be installed in the compartment or outside the compartment, decides on the space, compartment, and blowing engine is installed in the Heat Room or the outside can.After being provided with device of the present invention on the automobile, the air-conditioning that is arranged in the gauge panel does not just need to establish heating pipe again, has reduced the air-conditioning volume in the gauge panel, makes gauge panel have more space that miscellaneous equipment is installed; Heat Room is set, can make indoor air Fast Heating, as required the heating installation in the Heat Room is delivered to the predetermined area, overcome whole compartment is heated simultaneously, the problem of heating effect difference is in the time will warming oneself, first valve opening, second valve closing, induced draft fan are opened, tail gas discharges through first freeing pipe, otherwise tail gas is discharged through second freeing pipe; Induced draft fan is set, more unobstructed when tail gas effluxes, help improving efficiency of engine, reach and save oil consumption and prolong the driving engine effect in service life.
As preferably, the evaporation ends of described heat exchanger tube is positioned at the described first freeing pipe inside.Heat exchanger tube is arranged in first freeing pipe, and the medium of directly exchanging in the heat pipe by tail gas activates, so that automobile starting just just can not warm oneself when to be the freeing pipe pipe surface temperature high, and can improve the heat exchange effect of heat exchanger tube.
As preferably, described blowing engine is positioned at described Heat Room, and the exhaust outlet of described blowing engine and described air outlet are tightly connected together.Can make hot blast in the Heat Room be transported to the place of appointment fast in time in the compartment in and heat, the warm speed of system is fast, with a definite target in view, has made full use of the energy.
As preferably, described ventilation inlet is provided with blast pipe, and the inlet end of described blast pipe is positioned at by the radiator.Can quicken the other airiness speed of radiator on the one hand, improve the cooling performance of water tank to driving engine, can make driving engine maintain work efficiency preferably for a long time, reach and save oil consumption and prolong the driving engine effect in service life, on the other hand, the temperature of the air that water tank is other is higher, can be heated to a higher temperature in the short period of time after entering Heat Room, improves heating effect; When not needing to warm oneself, by making the blowing engine reverse operation, the air in the compartment is discharged from water tank is other, play to the compartment ventilation with to the effect of water tank heat-dissipation.
As preferably, the inlet end of described blast pipe is provided with wind collecting port, and described wind collecting port is horn-like, and described wind collecting port is over against described radiator.Can be more effectively that water tank is other hot air be got in the Heat Room and reduce the ambient temperature of water tank.
As preferably, all be provided with filter screen on described ventilation inlet and the described air outlet.The heat exchanger tube surface is difficult for laying dust, keeps the good heat transfer effect for a long time, and the heating installation cleanliness that enters in the compartment is good, helps occupant's health.
As preferably, the present invention is provided with warm wind port, and described air outlet is provided with discharge pipe, and described discharge pipe is connected with described warm wind port, and described warm wind port is positioned at by the automotive seat.Warm braw in the Heat Room is discharged from seat is other through warm wind port, directly the occupant who is sitting on the chair is warmed oneself, and comfort level is good, and heating effect is good.
As preferably, be connected with the air-out arm on the described discharge pipe, described air-out arm extends along the seat board of described automotive seat and the edge of backrest, and described warm wind port is located on the described air-out arm.Further improve heating effect and travelling comfort.
As preferably, described warm wind port is the through hole along described air-out arm axial distribution.Warm wind port is designed to through hole, and heating installation is sprayed onto the occupant on one's body the time especially on being sprayed onto skin the time, and a kind of sensation of warm current massage is arranged, and traveling comfort is good.
As preferably, described discharge pipe and air-out arm all are that plastics are made.Heat-insulating property is better, and the temperature slippage when reducing heating installation through discharge pipe is in light weight.
The present invention has following advantage; employing utilizes the three states of matters to change the heat exchanger tube that transmits heat; the volume of heat exchanging part is little, from heavy and light, even realize adopting slow speed of revolution, low air quantity blowing engine also can satisfy car load heating demand, reduced noise simultaneously; be convenient to find installing space; utilize tail gas to warm oneself, reclaimed tail gas energy effectively, reduced energy consumption; induced draft fan is set, can plays a protective role driving engine.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Scheme drawing when Fig. 2 is in the heating state for the present invention;
Scheme drawing when Fig. 3 is in halted state for the present invention;
Scheme drawing when Fig. 4 is in the ventilation state for the present invention.
Among the figure: automotive floor panel 1, Heat Room 2, cover body 21, heat exchanger tube 22, blowing engine 23, air outlet 24, the discharge side 25 of blowing engine, ventilation inlet 26, discharge pipe 3, air-out arm 31, the seat board 32 of automotive seat, the backrest 33 of automotive seat, warm wind port 34, blast pipe 4, the inlet end 41 of blast pipe, radiator 42, wind collecting port 43, oral area lower skeleton 44, oral area upper skeleton 45, enclose cloth 46, trailing cable 47, lifting motor 48, automobile exhaust pipe 5, three-way pipe 6, air inlet pipe 61, first freeing pipe, 62, the second freeing pipes 63, induced draft fan 64, first valve, 65, the second valves 66, driving engine 7, Auto Instrument desk 71, master cock 72, compartment 8.
The specific embodiment
The present invention is further illustrated below in conjunction with accompanying drawing and embodiment.
Referring to Fig. 1, a kind of vehicle heating system, comprise Heat Room 2, Heat Room 2 is arranged on the automotive floor panel 1, Heat Room 2 is surrounded by cover body 21 and automotive floor panel 1 and forms, cover body 21 is made for duroplasts, cover body 21 is fastened on the floor 1 by screw, the junction on cover body 21 and floor 1 is provided with the sealing bradyseism pad that is made by rubber, scribble the reflecting horizon on the inwall of Heat Room 2, in Heat Room 2, be provided with and utilize the three states of matters to change heat exchanger tube 22 and the blowing engine 23 that transmits heat, blowing engine 23 is hung on the top of Heat Room 2, upper end at the right side wall of Heat Room 2 is provided with air outlet 24, the exhaust outlet 25 of blowing engine is sealedly connected on the left end of air outlet 24, the right-hand member of air outlet 24 is sealedly connected with discharge pipe 3, junction at discharge pipe 3 and air outlet 24 is provided with filter screen, between discharge pipe 3 and the air outlet 24 for removably connecting, the right-hand member of discharge pipe 3 is connected with two air-out arms 31, air-out arm 31 is the pipe of the structure in the form of a ring that is connected to end, seat board 32 peripheries that are looped around automotive seat in two air-out arms 31, another is looped around the periphery of the backrest 33 of automotive seat, on the tube wall of air-out arm 31, be provided with warm wind port 34, warm wind port 34 is the through hole along air-out arm 31 axial distribution, discharge pipe 3 and air-out arm 31 all are plastic pipe, lower end at the left side wall of Heat Room 2 is provided with ventilation inlet 26, ventilation inlet 26 back seaies are connected with blast pipe 4, junction at blast pipe 4 and ventilation inlet 26 is provided with filter screen, between blast pipe 4 and the ventilation inlet 26 for removably connecting, it is other that the inlet end 41 of blast pipe is positioned at radiator 42, the inlet end 41 of blast pipe is provided with wind collecting port 43, wind collecting port 43 is horn-like, wind collecting port 43 is over against radiator 42, wind collecting port 43 is by oral area lower skeleton 44, oral area upper skeleton 45 and enclose cloth 46 and constitute, enclosing cloth 46 is formed by the making of soft rubber cloth, oral area lower skeleton 44 is fixed on the car body, oral area upper skeleton 45 drives by trailing cable 47 and lifting motor 48 and is connected together, lifting motor 48 has brake function, when lifting motor 48 unclamps fixation to trailing cable 47, oral area upper skeleton 45 descends by action of gravity, wind collecting port 43 can close up automatically, automobile exhaust pipe 5 is provided with three-way pipe 6, three-way pipe 6 comprises air inlet pipe 61, first freeing pipe 62 and second freeing pipe 63, automobile exhaust pipe 5 is sealedly connected on the air inlet pipe 61, right-hand member at first freeing pipe 62 is provided with first valve 65, first valve 65 is an electrically-controlled valve, left end at first freeing pipe 62 is provided with induced draft fan 64, the evaporation ends of heat exchanger tube 22 is built in first freeing pipe 62 after promptly floor 1 is passed in the lower end among the figure, the evaporation ends of heat exchanger tube 22 is between the induced draft fan 64 and first valve 65, on second freeing pipe 63, be provided with second valve 66, second valve 66 is an electrically-controlled valve, the control desk that is used to control each electric elements work is installed on Auto Instrument desk 71, control desk is provided with master cock 72, master cock 72 is a three position switch, three corresponding respectively heatings, stop and ventilatory.
Referring to Fig. 2, when master cock 72 places the heating position, second valve 66 is closed, first valve 65 is opened, induced draft fan 64 starts, blowing engine 23 is just changeing, lifting motor 46 will be moved a high position on the upper skeleton 45, this moment, wind collecting port 43 opened, the air on radiator 42 sides is through wind collecting port 43, the inlet end 41 of blast pipe, blast pipe 4 and ventilation inlet 26 enter in the Heat Room 2, heating installation in the Heat Room 2 is through the exhaust outlet 25 of blowing engine, air outlet 24, discharge pipe 3, air-out arm 31 and warm wind port 34 enter in the compartment 8, the tail gas of driving engine 7 is through freeing pipe 5, the air inlet pipe 61 and first freeing pipe 62 are discharged, induced draft fan 64 can quicken the flow velocity that effluxes of tail gas, and the heat in the tail gas is in heat exchanger tube 22 exchanges to Heat Room 2;
Referring to Fig. 3, when master cock 72 placed stop bit, second valve 66 was opened, first valve 65 is closed, induced draft fan 64 stops, and blowing engine 23 stops, and lifting motor 46 is decontroled drawing effect on the oral area upper skeleton 45, wind collecting port 43 is in and closes up state, and tail gas is discharged through second freeing pipe 63.
Referring to Fig. 4, when master cock 72 places the ventilation position, second valve 66 is opened, first valve 65 is closed, induced draft fan 64 stops, blowing engine 23 counter-rotatings, under the effect of lifting motor 46, wind collecting port 43 opens, this moment, tail gas was discharged through second freeing pipe 63, and the air in the compartment 8 is discharged from radiator 42 sides behind warm wind port 34, air-out arm 31, discharge pipe 3, air outlet 24, ventilation inlet 26, blast pipe 4 and wind collecting port 43.
Claims (10)
1. vehicle heating system, comprise and utilize the three states of matters to change the heat exchanger tube that transmits heat, it is characterized in that, comprise Heat Room and three-way pipe, described heat exchanger tube is positioned at described Heat Room, described Heat Room is provided with blowing engine, ventilation inlet and air outlet, described three-way pipe comprises air inlet pipe, first freeing pipe and second freeing pipe, described air inlet pipe is connected with automobile exhaust pipe, described second freeing pipe is provided with second valve, the inlet end of described first freeing pipe is provided with first valve, the outlet side of described first freeing pipe is provided with induced draft fan, the evaporation ends of described heat exchanger tube is connected with described first freeing pipe after passing described Heat Room, and the evaporation ends of described heat exchanger tube is between described induced draft fan and described first valve.
2. vehicle heating system according to claim 1 is characterized in that, the evaporation ends of described heat exchanger tube is positioned at the described first freeing pipe inside.
3. vehicle heating system according to claim 1 is characterized in that described blowing engine is positioned at described Heat Room, and the exhaust outlet of described blowing engine and described air outlet are tightly connected together.
4. according to claim 1 or 2 or 3 described vehicle heating systems, it is characterized in that described ventilation inlet is provided with blast pipe, the inlet end of described blast pipe is positioned at by the radiator.
5. vehicle heating system according to claim 4 is characterized in that the inlet end of described blast pipe is provided with wind collecting port, and described wind collecting port is horn-like, and described wind collecting port is over against described radiator.
6. according to claim 1 or 2 or 3 described vehicle heating systems, it is characterized in that, all be provided with filter screen on described ventilation inlet and the described air outlet.
7. according to claim 1 or 2 or 3 described vehicle heating systems, it is characterized in that be provided with warm wind port, described air outlet is provided with discharge pipe, described discharge pipe is connected with described warm wind port, and described warm wind port is positioned at by the automotive seat.
8. vehicle heating system according to claim 7 is characterized in that, is connected with the air-out arm on the described discharge pipe, and described air-out arm extends along the seat board of described automotive seat and the edge of backrest, and described warm wind port is located on the described air-out arm.
9. vehicle heating system according to claim 8 is characterized in that, described warm wind port is the through hole along described air-out arm axial distribution.
10. vehicle heating system according to claim 9 is characterized in that, described discharge pipe and air-out arm all are that plastics are made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100921671A CN102259572B (en) | 2011-04-13 | 2011-04-13 | Automobile heating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100921671A CN102259572B (en) | 2011-04-13 | 2011-04-13 | Automobile heating system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102259572A true CN102259572A (en) | 2011-11-30 |
| CN102259572B CN102259572B (en) | 2012-11-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100921671A Active CN102259572B (en) | 2011-04-13 | 2011-04-13 | Automobile heating system |
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| Country | Link |
|---|---|
| CN (1) | CN102259572B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108104033A (en) * | 2018-01-16 | 2018-06-01 | 洛阳中重特种车辆有限公司 | Secondary booster inhales spray apparatus and sanitation cart |
| CN113085476A (en) * | 2021-03-29 | 2021-07-09 | 青岛海尔空调器有限总公司 | Vehicle-mounted overhead air conditioner, control method thereof and vehicle |
| CN114954174A (en) * | 2022-06-09 | 2022-08-30 | 小米汽车科技有限公司 | Vehicle seat, control method and vehicle |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201249647Y (en) * | 2008-09-11 | 2009-06-03 | 赵建刚 | Vehicle exhaust waste heat heating device |
| CN201280045Y (en) * | 2008-09-03 | 2009-07-29 | 中顺汽车控股有限公司 | Recycle apparatus for tail gas of automotive vehicle |
| CN201506225U (en) * | 2009-10-19 | 2010-06-16 | 中国重汽集团济南动力有限公司 | Heating device for bottom plate |
| CN201677713U (en) * | 2010-04-19 | 2010-12-22 | 陕西重型汽车有限公司 | Heating exhaust device for bottom plate of carriage of dump truck and three-way valve thereof |
| CN201721285U (en) * | 2010-07-08 | 2011-01-26 | 达木·马扎克拜 | Automobile heating device |
| CN201729045U (en) * | 2010-06-12 | 2011-02-02 | 李连峰 | Energy-conserving exhaust pipe heater |
-
2011
- 2011-04-13 CN CN2011100921671A patent/CN102259572B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201280045Y (en) * | 2008-09-03 | 2009-07-29 | 中顺汽车控股有限公司 | Recycle apparatus for tail gas of automotive vehicle |
| CN201249647Y (en) * | 2008-09-11 | 2009-06-03 | 赵建刚 | Vehicle exhaust waste heat heating device |
| CN201506225U (en) * | 2009-10-19 | 2010-06-16 | 中国重汽集团济南动力有限公司 | Heating device for bottom plate |
| CN201677713U (en) * | 2010-04-19 | 2010-12-22 | 陕西重型汽车有限公司 | Heating exhaust device for bottom plate of carriage of dump truck and three-way valve thereof |
| CN201729045U (en) * | 2010-06-12 | 2011-02-02 | 李连峰 | Energy-conserving exhaust pipe heater |
| CN201721285U (en) * | 2010-07-08 | 2011-01-26 | 达木·马扎克拜 | Automobile heating device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108104033A (en) * | 2018-01-16 | 2018-06-01 | 洛阳中重特种车辆有限公司 | Secondary booster inhales spray apparatus and sanitation cart |
| CN113085476A (en) * | 2021-03-29 | 2021-07-09 | 青岛海尔空调器有限总公司 | Vehicle-mounted overhead air conditioner, control method thereof and vehicle |
| CN114954174A (en) * | 2022-06-09 | 2022-08-30 | 小米汽车科技有限公司 | Vehicle seat, control method and vehicle |
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| Publication number | Publication date |
|---|---|
| CN102259572B (en) | 2012-11-28 |
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