CN206797077U - A kind of low energy consumption vehicle - Google Patents
A kind of low energy consumption vehicle Download PDFInfo
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- CN206797077U CN206797077U CN201720545265.9U CN201720545265U CN206797077U CN 206797077 U CN206797077 U CN 206797077U CN 201720545265 U CN201720545265 U CN 201720545265U CN 206797077 U CN206797077 U CN 206797077U
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- sunshading board
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- steel cable
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- 238000005265 energy consumption Methods 0.000 title claims abstract description 26
- 239000012782 phase change material Substances 0.000 claims abstract description 59
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 49
- 239000010959 steel Substances 0.000 claims abstract description 49
- 239000011521 glass Substances 0.000 claims description 8
- 239000004033 plastic Substances 0.000 claims description 6
- 229920003023 plastic Polymers 0.000 claims description 6
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims 1
- 239000010931 gold Substances 0.000 claims 1
- 229910052737 gold Inorganic materials 0.000 claims 1
- 238000004378 air conditioning Methods 0.000 abstract description 18
- 238000012546 transfer Methods 0.000 description 21
- 230000000694 effects Effects 0.000 description 10
- 239000000463 material Substances 0.000 description 10
- 230000009466 transformation Effects 0.000 description 9
- RZJRJXONCZWCBN-UHFFFAOYSA-N octadecane Chemical compound CCCCCCCCCCCCCCCCCC RZJRJXONCZWCBN-UHFFFAOYSA-N 0.000 description 8
- 239000012071 phase Substances 0.000 description 8
- 238000005057 refrigeration Methods 0.000 description 6
- 239000007788 liquid Substances 0.000 description 5
- 239000007791 liquid phase Substances 0.000 description 5
- 238000010521 absorption reaction Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 4
- 238000012216 screening Methods 0.000 description 4
- 238000009825 accumulation Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 229920001187 thermosetting polymer Polymers 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 206010016334 Feeling hot Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000005030 aluminium foil Substances 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
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- 238000002474 experimental method Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000003760 hair shine Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
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- 239000000155 melt Substances 0.000 description 1
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- 238000012986 modification Methods 0.000 description 1
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- Air-Conditioning For Vehicles (AREA)
Abstract
The utility model discloses a kind of low energy consumption vehicle, including car body and sunshade unit, the sunshade unit includes sunshading board, flexible connecting member, resilient pin, two relative modeling bar track, steel cable, thermistor, A/D converter, programmable logic controller (PLC) and motors made of phase-change material;Modeling bar track is fixedly connected on car body, and sunshading board, in modeling bar track, the sunshading board positioned at top is fixedly connected with the vehicle body, and is connected between adjacent sunshading board by flexible connecting member;Steel cable passes through the power output axis connection of sunshading board, steel cable and motor;Motor pulls sunshading board to realize expansion or shrink by steel cable;Resilient pin is fixedly connected on the top of modeling bar track in modeling bar track.The vehicle reduces the air conditioning energy consumption during vehicle launch and traveling, improves occupant's comfort level in the higher environment of temperature.
Description
Technical field
A kind of vehicle is the utility model is related to, it particularly relates to a kind of low energy consumption vehicle.
Background technology
With the improvement of people's living standards, car ownership constantly increases, in-car comfort level is wanted when people are to driving
Ask also constantly lifting.Under the conditions of in summer, burning sun is exposed to the sun, vehicle interior temperature can raise rapidly, the personnel in car that have just enter into have it is hot in
The sensation of heat, the comfort level driven is had a strong impact on, even if starting in-car air-conditioning system, it is also difficult to drop in a short time comfortable
Temperature, increase in-car air conditioning energy consumption.
Although having the product such as sunshade cloth for vehicle, sky shade on the market, such product is exposed to the sun lower actual screening in burning sun
Sun, cooling-down effect are unsatisfactory, and adumbral effect is relatively low, has had a strong impact on the hot comfort of occupant.
The content of the invention
Technical problem:Technical problem to be solved in the utility model is to provide a kind of low energy consumption vehicle, higher in temperature
Environment in, reduce vehicle launch and traveling during energy consumption, improve occupant's comfort level.
Technical scheme:In order to solve the above technical problems, the utility model uses following technical scheme:
A kind of low energy consumption vehicle, including car body and sunshade unit, the sunshade unit are laid in body inner side, the sunshade
Unit includes sunshading board, flexible connecting member, resilient pin, two relative modeling bar tracks, steel cable, temperature-sensitives made of phase-change material
Resistance, A/D converter, programmable logic controller (PLC) and motor;Modeling bar track is fixedly connected on car body, and sunshading board is embedded to
Mould in bar track, the sunshading board positioned at top is fixedly connected with the vehicle body, and is connected between adjacent sunshading board by flexible connecting member;Steel
Restrict through the power output axis connection of sunshading board, steel cable and motor;Motor pulls sunshading board to realize expansion or shrink by steel cable;
Resilient pin is fixedly connected on the top of modeling bar track in modeling bar track;The signal output part of thermistor turns with A/D
The signal input part connection of parallel operation, the signal output part of A/D converter and the signal input part of programmable logic controller (PLC) connect,
The signal output part of programmable logic controller (PLC) and the signal input part of motor connect.
As preference, the sunshade unit also includes pulley, and pulley is fixedly connected with the vehicle body;The steel cable is two,
One end of one steel cable is fixedly connected with one end of the sunshading board positioned at bottommost, after the other end passes through sunshading board from bottom to top, Gu
Surely it is connected on the power output shaft of motor;The other end of one end of another steel cable and the sunshading board positioned at bottommost, which is fixed, to be connected
Connect, after the other end passes through sunshading board from bottom to top, around pulley, be fixedly connected on the power output shaft of motor.
As preference, the sunshade unit also includes pulley, and pulley is fixedly connected with the vehicle body;The steel cable is one,
Steel cable one end is fixedly connected on the left of the sunshading board of bottommost, and the other end is fastened on the power output shaft of motor
Afterwards, around pulley, since on the right side of the sunshading board of top, all sunshading boards are crossed through successively, are finally fixed at position
In the right side of the sunshading board of bottommost.
As preference, the programmable logic controller (PLC) according to formula controlled motor rotation;
Wherein, H represents sunshading board along modeling bar track movable length, unit:m;HmaxRepresent modeling bar track length, i.e. sunshade
Plate maximum movable length, unit:m;TmaxRepresent the maximum temperature that environment inside car is likely to be breached, unit:℃;TminRepresent comfortable bar
In-car air themperature under part;T represents measured in-car actual air temperature, unit:℃.
As preference, the sunshade unit is laid in by car body front windshield, rear seat windscreen and vehicle window;The screening
Positive unit can cover front windshield, rear seat windscreen and vehicle window.
As preference, the both ends that the sunshading board of bottom is located in the sunshading board are in I-shaped, mould in bar track and are provided with T
Shape track, the sunshading board of the bottom are adapted with modeling bar track.
As preference, the sunshading board includes metal level, phase-change material layers and reflector layer, the phase-change material being sequentially connected
Phase-change material is filled with layer;When sunshading board is in deployed condition, reflector layer is towards on the outside of car body.
As preference, described phase-change material layers include plastic casing, are provided with grid in plastic casing, phase-change material is filled out
Fill within a grid.
As preference, described thermistor is fixedly connected on the grid of the air-conditioner air outlet of car body.
Beneficial effect:Compared with prior art, the vehicle of the utility model embodiment can reduce vehicle launch and traveling
During energy consumption, improve occupant's comfort level.It is provided with made of phase-change material and hides in the vehicle of the utility model embodiment
Positive plate.Sunshading board can absorb solar radiation heat, and the transformation of solid-liquid phase occurs, and suppresses vehicle interior temperature rise.When in-car air-conditioning is transported
During row, vehicle interior temperature is less than the melting temperature of phase-change material, and Liquid-solid Transition, cold caused by air-conditioning system occur for phase-change material
Stored by material.When temperature is higher than its melting temperature, cold is released, and is effectively slowed down the temperature rise of interior space, is reached
Acted on to in-car air-conditioning system " peak clipping ".In addition, in the vehicle of the utility model embodiment, sunshade unit is arranged in car body
Side, on the premise of being not take up interior space substantially, structure is compacter, and has reached more preferable sunshade, energy-saving effect.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model embodiment;
Fig. 2 is the structural representation of the sunshade unit in the utility model embodiment;
Fig. 3 is the profile of the modeling bar track in the utility model embodiment;
Fig. 4 is the assembling schematic diagram of sunshading board and modeling bar track in the utility model embodiment;
Fig. 5 is the assembling schematic diagram of steel cable in the utility model embodiment, sunshading board, motor and pulley;
Have in figure:Sunshading board 1, flexible connecting member 2, resilient pin 3, modeling bar track 4, steel cable 5, thermistor 6, A/D turn
Parallel operation 7, programmable logic controller (PLC) 8, motor 9, pulley 10, car body 11.
Embodiment
The utility model is further described below in conjunction with the accompanying drawings.
As shown in figure 1, a kind of low energy consumption vehicle of the utility model embodiment, including car body 11 and sunshade unit.Sunshade
Unit is laid in the inner side of car body 11.The sunshade unit includes sunshading board 1 made of phase-change material, flexible connecting member 2, elasticity and inserted
Pin 3, two relative modeling bar track 4, steel cable 5, thermistor 6, A/D converter 7, programmable logic controller (PLC) 8 and motor 9.
Modeling bar track 4 is fixedly connected on car body 11, and sunshading board 1 is embedded in bar track 4 is moulded.Sunshading board 1 and car positioned at top
Body 11 is fixedly connected.Connected between adjacent sunshading board 1 by flexible connecting member 2.Steel cable 5 passes through sunshading board 1, steel cable 5 and motor 9
Power output axis connection.Motor 9 pulls sunshading board 1 to realize expansion or shrink by steel cable 5.Resilient pin 3 is positioned at modeling bar rail
In road 4, and it is fixedly connected on the top of modeling bar track 4.The signal output part of thermistor 6 inputs with the signal of A/D converter 7
End connection, the signal output part of A/D converter 7 are connected with the signal input part of programmable logic controller (PLC) 8, FPGA control
The signal output part of device 8 processed is connected with the signal input part of motor 9.
In above-described embodiment, sunshade unit is laid in the inner side of car body 11, can be laid in by the front windshield of car body 11, after
By windshield or by vehicle window.Sunshade unit can cover front windshield, rear seat windscreen or vehicle window.As preferred
Example, sunshade unit is laid in by the front windshield of car body 11 respectively, by rear seat windscreen and by vehicle window.Sunshade unit can cover
Front windshield, rear seat windscreen and vehicle window.Shaded effects can so be increased, reduce air conditioning energy consumption.
In the sunshade unit of above-described embodiment, connected between adjacent sunshading board 1 by flexible connecting member 2.Several monolithics hide
Positive plate 1 is linked into an integrated entity by flexible material 2, and the connected mode of flexible material 2 enables each sunshading board free around flexible material 2
Activity, therefore be easy to fold.So sunshading board 1 be able to can also be deployed on the same face with folding shrinking.Sunshading board 1 is by phase
Become material to be made.
When vehicle is under hot environment, the in-vehicle air environment temperature that thermistor 6 gathers is higher than set environment temperature
When, resistance value is changed after thermistor 6 is heated, and electric signal is delivered into A/D converter 7, and A/D converter 7 is by electric signal
It is converted into data signal and is delivered to programmable logic controller (PLC) 8, programmable logic controller (PLC) 8 calculates the withdrawal movement of sunshading board 1
Distance, control instruction is sent, motor 9 receives control instruction and rotated, and control sunshading board 1 deploys.Sunshading board 1 along modeling bar track
4 expansion.When environment temperature is higher than the fusing point of phase-change material, phase-change material absorbs in-car heat, is liquid by Solid State Transformation.
This process can avoid in-car air themperature from further raising, so as to maintain the in-car air themperature of relative comfort.
When in-car operation of air conditioner, environment inside car temperature gradually reduces.The in-vehicle air environment temperature that thermistor 6 gathers
During less than set environment temperature, resistance value is changed after thermistor 6 is heated, and electric signal is delivered into A/D converter 7, A/D
Converter 7 converts the electrical signal to data signal and is delivered to programmable logic controller (PLC) 8, and programmable logic controller (PLC) 8, which calculates, to be hidden
The withdrawal displacement of positive plate 1, control instruction is sent, motor 9 receives control instruction and rotated, and controls sunshading board 1 along modeling bar
The former road folding shrinking of track 4.In the process, when temperature is less than phase-change material fusing point, phase-change material is again by liquid phase-change
For solid-state, the part cold of air-conditioning supply is stored, can effectively slow down the temperature rise of interior space after air-conditioning stops, reaching air-conditioning
The effect of load " peak clipping ".
In above-described embodiment, as a preferred structure, the sunshade unit also includes pulley 10, and pulley 10 is solid with car body 11
Fixed connection;The steel cable 5 is two, and one end of a steel cable 5 is fixedly connected with one end of the sunshading board 1 positioned at bottommost, another
After end passes through sunshading board 1 from bottom to top, it is fixedly connected on the power output shaft of motor 9;One end of another steel cable 5 is with being located at most
The other end of the sunshading board 1 of bottom is fixedly connected, and after the other end passes through sunshading board 1 from bottom to top, around pulley 10, is fixedly connected
On the power output shaft of motor 9.
In the preferred structure, when needing to withdraw the sunshading board 1 of expansion, start motor 9, the power output of motor 9
Axle is rotated so that steel cable 5 is wound in power output shaft.So, sunshading board 1 gradually reclaims from deployed condition, in folded state.
When needing to deploy sunshading board 1, start motor 9, the power output shaft opposite direction rotation of motor 9, it is defeated that steel cable 5 progressively disengages power
Shaft.When the pulling force that steel cable 5 acts on sunshading board 1 is more than the elastic force of resilient pin 3, sunshading board 1 departs from resilient pin 3 and stopped
Move down.So, sunshading board 1 is gradually spread out from folded state, plays sunshade effect.
As another preferred structure, the sunshade unit also includes pulley 10, and pulley 10 is fixedly connected with car body 11.It is described
Steel cable 5 is one, and the one end of steel cable 5 is fixedly connected on defeated in the power of motor 9 positioned at the left side of sunshading board 1 of bottommost, the other end
After being fastened on shaft, around pulley 10, since the right side of sunshading board 1 positioned at top, all screenings are crossed through successively
Positive plate 1, it is finally fixed at the right side of the sunshading board 1 positioned at bottommost.The preferred structure is only with a steel cable 5, it is easy to accomplish hides
Positive plate both ends synchronizing moving.It is identical with previous preferred structure, pass through the power output shaft direction of rotation of controlled motor 9 so that steel
Rope 5 in receiving and putting different conditions, is realizing conversion of the sunshading board 1 between deployed condition and folded state.Specifically, steel
5 one end of restricting are held within the left side of sunshading board 1 of bottommost, after the other end is wound on the power output shaft of motor 9, around cunning
Wheel 10, stretched in mould bar track 4 again since on the right side of the sunshading board 1 positioned at top, crossing through all sunshading boards successively
1, it is finally fixed at the right side of the sunshading board 1 positioned at bottommost.When 9 rotate counterclockwise of motor, steel cable 5 is also inverse with movable pulley 10
Hour hands rotate, and left end steel cable 5 shortens, and right-hand member steel cable 5 increases, when the elastic force of spring in latch 3 is less than steel cable pulling force, steel cable 5
Phase-change material plate 1 is pulled, so that phase-change material plate 1 deploys with corresponding windshield and vehicle window keeping parallelism position;Work as electricity
When machine 9 turns clockwise, steel cable 5 also turns clockwise with movable pulley 10, and left end steel cable 5 increases, and right-hand member steel cable 5 shortens, and makes screening
Positive plate 1 is folded, and after sunshading board 1 is folded to original position, latch 3 is no longer deformed upon by ambient pressure, blocks sunshading board 1.Exhibition
When opening, the elastic force of latch 3 is more than by the constant pulling force of steel cable 5, moves down sunshading board 1.When folding withdrawal, pass through steel cable 5
Constant force is more than the self gravitation of sunshading board 1, moves up sunshading board 1.
In above-described embodiment, the programmable logic controller (PLC) 8 according to formula (1) controlled motor 9 rotation;
Wherein, H represents sunshading board along modeling bar track movable length, unit:m;HmaxRepresent modeling bar track length, i.e. sunshade
Plate maximum movable length, unit:m;TmaxRepresent the maximum temperature that environment inside car is likely to be breached, unit:℃;TminRepresent comfortable bar
In-car air themperature under part;T represents measured in-car actual air temperature, unit:℃.Preferably, the TminFor 26
℃。
The consecutive variations of sunshading board 1 can be achieved according to range of temperature in programmable logic controller (PLC) 8.In the different external worlds
At a temperature of, keep vehicle interior to be in suitable temperature environment.
In above-described embodiment, for ease of the movement of sunshading board 1, the both ends of the sunshading board 1 of bottom are located in the sunshading board 1
In I-shaped, T track is provided with modeling bar track 4, the sunshading board 1 of the bottom is adapted with moulding bar track 4.In sunshade unit
Sunshading board 1 have polylith.Sunshading board 1 positioned at top is fixed on car body 11, is not moved.Positioned at the sunshade of least significant end
Plate 1 is adapted with modeling bar track 4, to control the movement positioned at middle sunshading board.By setting modeling bar track 4, to sunshading board 1
Mobile carry out it is spacing.
In above-described embodiment, the sunshading board 1 includes metal level 101, phase-change material layers 102 and the reflector layer being sequentially connected
103rd, phase-change material is filled with phase-change material layers 102;When sunshading board 1 is in deployed condition, reflector layer 103 is towards outside car body
Side.When temperature is higher, and sunshading board 1 is in deployed condition, extraneous sunshine is first radiated on reflector layer 103, passes through reflector layer
103 reflect away.By setting reflector layer 103 to be beneficial to reduce vehicle interior temperature.Metal level 101 is set, is advantageous to flash heat transfer, will
In-car heat passes to phase-change material layers 102 in time.Phase-change material layers 102 are absorbed heat, and its phase-change material contained is become by solid-state
For liquid, heat accumulation is carried out.The sunshading board 1 of the structure, vehicle interior temperature is reduced beneficial to quick.
Because phase-change material layers 102 are changed between deploying and folding retracted state, so to avoid in deployed condition,
Phase-change material all focuses on the bottom of phase-change material layers 102, and the phase-change material layers 102 include plastic casing, in plastic casing
Provided with grid, phase-change material is filled within a grid.So, no matter how the position of phase-change material layers 102 changes, phase transformation material therein
Material all the time within a grid, beneficial to phase-change material being uniformly distributed in phase-change material layers 102 so that phase-change material layers 102 can
Play a part of good accumulation of heat and release heat.
When human pilot into the car when, sunshading board 1 at front windshield, which needs to fold, to be withdrawn, and human pilot is
It can drive.For ease of quick response, on the grid for the air-conditioner air outlet that described thermistor 6 is fixedly connected on car body 11.Car
When starting, the temperature at air-conditioner air outlet can reduce suddenly.So, the thermistor 6 positioned at air outlet is in time by collection
Temperature information sends programmable logic controller (PLC) 8 to, and then controls the folded back of sunshading board 1.
In above-described embodiment, when in-car air themperature is higher than sunshading board phase change material inside fusing point, phase-change material absorbs
In-car heat, phase transformation of the solid-state to liquid occurs, reduces in-car air themperature, reduces energy when air conditioning for automobiles is run again
Consumption.In the car under the conditions of operation of air conditioner, when in-car air themperature is less than visor mechanism phase change material inside fusing point, phase-change material
Again solid-state is changed into by liquid, and stores a part of cold, it is sudden and violent can effectively to slow down the air-conditioning system rear and sun out of service
The temperature rise of interior space under the conditions of solarization, the effect of " peak clipping " is served to air conditioner load.In addition, in the present embodiment, at sunshading board
When folded state, i.e., when not deploying, there is gap between each sunshading board, each sunshading board remains to and air contact, can play accumulation of heat
Or cold-storage effect.
In above-described embodiment, when vehicle interior temperature is in range of normal value, sunshading board 1 is folded in the top of modeling bar track 4,
Propped up by latch 3 and do not fallen.
In following two situations, the sunshading board 1 of expansion can auto-folder contraction:First, working as automobile starting, in-car air-conditioning is opened
Qi Shi, it is placed in the thermistor 6 of air outlet nearby and detects that nearby air quantity increases air outlet suddenly, temperature decrease;Second, when automobile puts out
When fiery, environment inside car temperature has already decreased to below design temperature after phase-change material sunshading board 1 absorbs certain heat.Motor
9 are again started up, and the rotation of cycle reverses that steel cable 5 is formed enables plate of material to fold to pack up.
Compared with traditional car visor, the sunshading board in the utility model uses phase-change material, can effectively utilize
The decalescence characteristic of phase-change material improves the efficiency of sunshade, and elimination personnel enter the sun and are exposed to the sun the thermal moxibustion of lower vehicle interior,
Good vehicle interior temperature environment is provided for driving, improves the human comfort of driver and passenger inside the vehicle.
An experiment is provided below, verifying the vehicle of the utility model embodiment has low energy consumption.
(1) in-car Air Temperature ascending effect is reduced
The volume of one general car is 3m3, it is known that the specific heat capacity of air is 1.0KJ/kg.K, density 1.2kg/m3.Not
When phase-change material sunshade unit described in the utility model is installed, the air conditioner load LQ of car0For 2119W.The phase transformation material of use
The phase transformation enthalpy for expecting n-octadecane is about 231KJ/kg, i.e. absorbable heat is during every kilogram of n-octadecane solid-liquid phase change
231KJ.It is 5 absorbing solar radiation heat and air heat transfer ratio:Under the conditions of 1:
By formula Q=cV ρ Δ t, air in a car compartment can be suppressed when can obtain every kilogram of phase-change material solid-liquid phase change in sunshading board
Temperature rise is:
In formula, Q represents the heat of absorbable in-car air during every kilogram of n-octadecane solid-liquid phase change, unit:kJ;C tables
Show air specific heat capacity, unit:kJ/(kg·℃);V represents the volume of air in compartment, unit:m3;ρ represents atmospheric density, single
Position:kg/m3;Δ t represents air in a car compartment temperature rise amount of suppression, unit:℃.
In this example, the total amount of heat that solid-liquid phase change absorbs is divided into 6 parts, wherein 1 part of heat comes from in-car air, remaining 5
Part heat comes from absorption and shines upon radiation.Therefore, Q 231/6.V takes 3m3。
By calculating, every kilogram of n-octadecane can suppress nearly 11 DEG C of vehicle interior temperature rise under ideal conditions, therefore vehicle fills
After having sunshade unit of the present utility model, temperature in compartment can be effectively reduced.
(2) automotive air-conditioning system energy consumption effect is reduced
After adding phase transformation sunshading board at windshield, the sky that hot composition is obtained by glass for vehicle window heat transfer and insolation is reduced
Load is adjusted, simultaneously because the heat-absorbing action of phase-change material, air conditioning for automobiles load will be reduced further.Each several part load is as follows:
1) the air conditioner load LQ formed by the nontransparent building enclosure steady state heat transfer of vehicle body1
LQt=KtFt(tz1-tn)=4.57 × 2.6 × (50-25)=297W
LQs=2KsFs(tz1-tn)=2 × 3.86 × 2.17 × (50-25)=419W
LQb=KbFb(tz1-tn)=1.57 × 3.33 × (50-25)=131W
In formula, LQtConducted heat for roof the refrigeration duty to be formed, unit:W;LQsConducted heat for vehicle body side the refrigeration duty to be formed, it is single
Position:W;LQbConducted heat for underbody the refrigeration duty to be formed, unit:W;KtFor the heat transfer coefficient of roof, unit:W/(m2·K);KsFor car
The heat transfer coefficient of body side, unit:W/(m2·K);KbFor the heat transfer coefficient of underbody, unit:W/(m2·K);FtFor the biography of roof
Hot area, unit:m2;FsFor the heat transfer area of vehicle body side, unit:m2;FbFor the heat transfer area of underbody, unit:m2;tz1For
The outer air integrated temperature of vehicle body, takes 50 DEG C;tnFor in-car air themperature, 25 DEG C are taken.
Thus, the air conditioner load formed by the nontransparent building enclosure steady state heat transfer of vehicle body is:
LQ1=LQt+LQs+LQb=847W
In formula, LQ1For the air conditioner load formed by the nontransparent building enclosure steady state heat transfer of vehicle body, unit:W.
2) the air conditioner load LQ formed by glass for vehicle window steady state heat transfer2
LQq=KqFq(tz2-tn)=8.745 × 0.709 × (35-25)=62W
LQc=2KcFc(tz2-tn)=2 × 8.78 × 0.894 × (35-25)=157W
LQh=KhFh(tz2-tn)=8.86 × 0.474 × (35-25)=42W
In formula, LQqConducted heat for front windshield the refrigeration duty to be formed, unit:W;LQcConducted heat for side window the refrigeration duty to be formed,
Unit:W;LQhConducted heat for rear seat windscreen the refrigeration duty to be formed, unit:W;KqFor the heat transfer coefficient of front windshield, unit:W/
(m2·K);KcFor the heat transfer coefficient of side window, unit:W/(m2·K);KhFor the heat transfer coefficient of rear seat windscreen, unit:W/(m2·
K);FqFor the heat transfer area of front windshield, unit:m2;FcFor the heat transfer area of side window, unit:m2;FhFor rear seat windscreen
Heat transfer area, unit:m2;tz2For air integrated temperature outside vehicle window, 35 DEG C are taken;tnFor in-car air themperature, 25 DEG C are taken.
Thus, after adding phase transformation sunshading board, the air conditioner load formed by glass for vehicle window steady state heat transfer is:
LQ2=LQq+LQc+LQh=261W
In formula, LQ2For the air conditioner load formed by glass for vehicle window steady state heat transfer, unit:W.
3) air conditioner load of thermosetting is obtained by glass for vehicle window insolation:
Because aluminium foil can regard light-proof material as, its transmissivity can be neglected, therefore in installation phase-change material sunshade list
After member, the air conditioner load that thermosetting is obtained by glass for vehicle window insolation is considered as 0.
4) because of the air conditioner load LQ of phase-change material heat absorption reductionabs:
Caloric receptivity is changed with the time by approximately linear, it is 30J/ that unit mass unit interval phase-change material, which melts caloric receptivity,
Skg, according to the transparent area of typical home car body, it can estimate that phase-change material gross mass is used in each automobile
20.2kg, then the total amount of heat that phase-change material absorbs is (i.e.:The air conditioner load reduced by phase-change material heat absorption) be:
LQabs=mqabs=20.20 × 30=606W
In formula, LQabsThe total amount of heat absorbed for phase-change material, unit:W;M is phase-change material quality, unit:kg;qabsFor
The heat that unit mass phase-change material absorbs, unit:W/kg.
Therefore using after phase transformation sunshading board, the air-conditioning system load of reduction is:
Δ Q=LQ0-(LQ1+LQ2-LQabs)=2119- (847+261-606)=1617W
In formula, Δ Q is using the reduction amount of air conditioner load after the utility model, unit:W;LQ0It is new not install this practicality
Air conditioner load during phase-change material sunshade unit described in type, unit:W;LQ1To be passed by the nontransparent building enclosure stable state of vehicle body
The air conditioner load of thermosetting, unit:W;LQ2For the air conditioner load formed by glass for vehicle window steady state heat transfer, unit:W;LQabsFor
Because of the air conditioner load that phase-change material heat absorption reduces, unit:W.
Correspondingly, the savable energy consumption for automotive air-conditioning system is:
In formula, COP is the automotive air-conditioning system coefficient of performance (refrigerating capacity with operation power ratio), value 2.6.
To sum up, vehicle of the present utility model not only can effectively reduce in-car air temperature rise, can also reduce vehicle air conditioner
Energy consumption.
Described above is only preferred embodiment of the present utility model, it should be pointed out that:For the common skill of the art
For art personnel, on the premise of the utility model principle is not departed from, some improvements and modifications can also be made, these improve and
Retouching also should be regarded as the scope of protection of the utility model.
Claims (10)
1. a kind of low energy consumption vehicle, including car body (11), it is characterised in that also laid including sunshade unit, the sunshade unit
On the inside of car body (11), the sunshade unit includes sunshading board (1), flexible connecting member (2), resilient pin made of phase-change material
(3), two relative modeling bar tracks (4), steel cable (5), thermistor (6), A/D converters (7), programmable logic controller (PLC)s
And motor (9) (8);Modeling bar track (4) is fixedly connected on car body (11), and sunshading board (1) is embedded in modeling bar track (4), position
Sunshading board (1) in top is fixedly connected with car body (11), is connected between adjacent sunshading board (1) by flexible connecting member (2);Steel
Rope (5) passes through sunshading board (1), the power output axis connection of steel cable (5) and motor (9);Motor (9) is pulled by steel cable (5) and hidden
Positive plate (1) is realized expansion or shunk;Resilient pin (3) is fixedly connected on modeling bar track (4) in modeling bar track (4)
Top;
The signal output part of thermistor (6) is connected with the signal input part of A/D converter (7), the signal of A/D converter (7)
Output end is connected with the signal input part of programmable logic controller (PLC) (8), the signal output part of programmable logic controller (PLC) (8) with
The signal input part connection of motor (9).
2. according to the low energy consumption vehicle described in claim 1, it is characterised in that the sunshade unit also includes pulley (10), sliding
Wheel (10) is fixedly connected with car body (11);The steel cable (5) is two, one end of a steel cable (5) and the sunshade positioned at bottommost
One end of plate (1) is fixedly connected, and the other end is fixedly connected on the power output shaft of motor (9);One end of another steel cable (5) with
The other end positioned at the sunshading board (1) of bottommost is fixedly connected, after the other end passes through sunshading board (1) from bottom to top, around pulley
(10), it is fixedly connected on the power output shaft of motor (9).
3. according to the low energy consumption vehicle described in claim 1, it is characterised in that the sunshade unit also includes pulley (10), sliding
Wheel (10) is fixedly connected with car body (11);The steel cable (5) is one, and steel cable (5) one end is fixedly connected on positioned at bottommost
On the left of sunshading board (1), after the other end is fastened on the power output shaft of motor (9), around pulley (10), from positioned at most pushing up
Start on the right side of the sunshading board (1) at end, cross through all sunshading boards (1) successively, be finally fixed at the sunshading board positioned at bottommost
(1) right side.
4. according to the low energy consumption vehicle described in claim 1, it is characterised in that the programmable logic controller (PLC) (8) is according to formula
(1) rotation of controlled motor (9);
Formula(1)
Wherein, H represents sunshading board along modeling bar track movable length, unit:m;HmaxRepresent modeling bar track length, i.e. sunshading board most
Big movable length, unit:m;TmaxRepresent the maximum temperature that environment inside car is likely to be breached, unit:℃;TminRepresent under comfort conditions
In-car air themperature;T represents measured in-car actual air temperature, unit:℃.
5. according to the low energy consumption vehicle described in claim 4, it is characterised in that the TminFor 26 DEG C.
6. according to the low energy consumption vehicle described in claim 1, it is characterised in that the sunshade unit is laid in car body (11) front
By wind glass, rear seat windscreen and vehicle window;The sunshade unit can cover front windshield, rear seat windscreen and vehicle window.
7. according to the low energy consumption vehicle described in claim 1, it is characterised in that be located at the sunshade of bottom in the sunshading board (1)
The both ends of plate (1) are in I-shaped, and T track, sunshading board (1) and the modeling bar track (4) of the bottom are provided with modeling bar track (4)
It is adapted.
8. according to the low energy consumption vehicle described in claim 1, it is characterised in that the sunshading board (1) includes the gold being sequentially connected
Phase-change material is filled with category layer (101), phase-change material layers (102) and reflector layer (103), phase-change material layers (102);Work as sunshade
When plate (1) is in deployed condition, reflector layer (103) is towards on the outside of car body.
9. according to the low energy consumption vehicle described in claim 8, it is characterised in that described phase-change material layers (102) include plastics
Housing, plastic casing is interior to be provided with grid, and phase-change material is filled within a grid.
10. according to the low energy consumption vehicle any one of claim 1-9, it is characterised in that described thermistor
(6) it is fixedly connected on the grid of the air-conditioner air outlet of car body (11).
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Cited By (2)
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CN107097613A (en) * | 2017-05-17 | 2017-08-29 | 南京工业大学 | A kind of low energy consumption vehicle |
CN108528169A (en) * | 2018-04-24 | 2018-09-14 | 许谐兴 | A kind of automatic temperature control system for agricultural machinery |
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2017
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
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CN107097613A (en) * | 2017-05-17 | 2017-08-29 | 南京工业大学 | A kind of low energy consumption vehicle |
CN107097613B (en) * | 2017-05-17 | 2023-09-12 | 南京工业大学 | Low-energy-consumption vehicle |
CN108528169A (en) * | 2018-04-24 | 2018-09-14 | 许谐兴 | A kind of automatic temperature control system for agricultural machinery |
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