CN109878296A - Vehicle waste heat utilization device - Google Patents
Vehicle waste heat utilization device Download PDFInfo
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- CN109878296A CN109878296A CN201811452472.5A CN201811452472A CN109878296A CN 109878296 A CN109878296 A CN 109878296A CN 201811452472 A CN201811452472 A CN 201811452472A CN 109878296 A CN109878296 A CN 109878296A
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Abstract
The present invention provides a kind of vehicle waste heat utilization device.In cold side flow path (22), cold side pump (30), flow control valve (34), high temperature heat source body (36) and heat exchanger (110) are arranged in order according to this.In air-conditioning effluent road (52), air-conditioning side pump (60), heat exchanger (110) and heater core (64) are arranged in order according to this.Airconditioning control portion (102) makes flow control valve (34) to work, so that the first temperature (T12) of the first thermal medium of inflow heat exchanger (110) is higher than the second temperature (T21) of second thermal medium of inflow heat exchanger (110).In accordance with the invention it is possible to improve heating efficiency.
Description
Technical field
The present invention relates to a kind of vehicle waste heat utilization devices, utilize and are set to the heat sources such as the drive motor of electric vehicle
The waste heat of body is come to the vehicle waste heat utilization device heated in compartment.
Background technique
The vehicle for carrying engine absorbs the waste heat of engine by thermal medium to cool down engine, and passes through heater
Core radiates to the heat of thermal medium, come to heating in compartment.On the other hand, the electric vehicle of engine is not carried
Thermal medium is heated by the waste heat or electric heater of drive motor, by heater core by the heat spreader of thermal medium, thus
To being heated in compartment.
A kind of vehicle is shown in Japanese invention patent Publication special open 2013-216283 to be filled with Waste Heat Reuse
It sets, which includes cooling circuit with waste heat utilization device, uses cooling water (the first thermal medium) cooling drive motor；It is empty
Road is recalled to, using heating water (the second thermal medium) to heating in compartment；And heat exchanger, in cooling water and heating water
Between carry out heat exchange.
Summary of the invention
Make heat vehicle waste heat utilization device such as Japanese invention patent Publication special open 2013-216283
It measures in the case where being transmitted from the first cooling thermal medium to the second thermal medium of heating, is expected that by increase and is situated between from the first heat
Matter improves heating efficiency to the heat output of the second thermal medium.
The present invention allows for such technical problem and completes, it is intended that providing one kind can be improved heating
The vehicle waste heat utilization device of efficiency.
Vehicle of the invention has cooling circuit, air conditioner loop and heat exchanger with waste heat utilization device, wherein described cold
But circuit absorbs heat from heat source body by making the first thermal medium flow back into cold side flow path；The air conditioner loop makes the second heat
Medium back flow radiates to air-conditioning effluent road, and by heater core；The heat exchanger is across the cooling circuit and institute
It states on air conditioner loop and is arranged, heat exchange is carried out between first thermal medium and second thermal medium, the vehicle is used
Waste heat utilization device is characterized in that, in the cold side flow path, cold side pump, flow control valve, the heat source body and institute
It states heat exchanger to be arranged in order according to this, wherein cold side pump sucks first thermal medium from suction inlet, and from discharge
Mouth discharge；The flow for first thermal medium that the flow control valve regulation is flowed into from upstream side, and first heat is made to be situated between
Downstream, in air-conditioning effluent road, air-conditioning side pump, the heat exchanger, the heater core are suitable according to this for mass flow
Sequence configuration, wherein the air-conditioning side pump sucks second thermal medium from suction inlet, and is discharged from outlet, and the vehicle is used
Waste heat utilization device also has control unit, and the control unit makes the flow control valve work, so as to flow into the heat exchanger
The temperature of first thermal medium be higher than the temperature for flowing into second thermal medium of the heat exchanger.
According to above structure, the flow for flowing to the first thermal medium of heat source body can be adjusted by flow control valve, therefore,
The temperature for flowing through the first thermal medium of heat exchanger can be adjusted.The flow of the first thermal medium of heat source body is flowed through by reducing,
Per unit first thermal medium increases from the received heat of heat source body, so that the temperature of the first thermal medium be made to increase.Then, exist
Increase in heat exchanger from the first thermal medium to the amount of heat transfer of the second thermal medium, so that the second thermal medium be made to heat up.In this way, root
According to above structure, the waste heat of heat source body can be effectively utilized to make the second thermal medium heat up, therefore, heating efficiency is mentioned
It is high.
In the present invention, air-conditioning side bypass flow path, the air-conditioning side bypass can be set in air-conditioning effluent road
Flow path is connect with the upstream-side channel of the heat exchanger and downstream-side channel, can be configured in air-conditioning effluent road
Valve, the valve are higher than the institute for flowing through the downstream-side channel in the temperature for second thermal medium for flowing through the upstream-side channel
In the case where the temperature for stating the second thermal medium, air-conditioning side bypass flow path is opened, and in the institute for flowing through the upstream-side channel
The temperature for stating the second thermal medium is lower than flow through the temperature of second thermal medium of the downstream-side channel in the case where, close institute
State air-conditioning side bypass flow path.
When the temperature of the second thermal medium of inflow heat exchanger is higher than the temperature of the first thermal medium of inflow heat exchanger,
Heat is passed to the first thermal medium from the second thermal medium.According to above structure, is passed to from the second thermal medium in heat
In the state of one thermal medium, the second thermal medium of inflow heat exchanger is reduced, and therefore, is able to suppress the temperature drop of the second thermal medium
It is low.
In the present invention, there can also be air-conditioning device, the air-conditioning device heats air by the heater core,
And be sent in compartment or outside compartment, having to the thermally operated requirement of the system of the air-conditioning device, and from the heat exchange
In the case that the temperature of first thermal medium of device outflow is more than defined cooling circuit ceiling temperature, the control unit can be with
The air-conditioning device is controlled, so as to be sent to outside the compartment by the air that the heater core heats.
According to above structure, when the first temperature of the first thermal medium flowed out from heat exchanger is more than the upper limit of cooling circuit
When temperature, that is, in the case where heat source body overheat, the waste heat of heat source body can be dispersed into outside compartment.
In accordance with the invention it is possible to effectively utilize the waste heat of heat source body to make the second thermal medium heat up, therefore, work is heated
When energy consumption reduce.That is, improving heating efficiency.
In the present invention, connection flow path, the suction inlet of cold side pump described in the connection fluid communication and institute be can have
State flow control valve, the flow control valve can have: first port is connect with the cold side flow path of upstream side；
Second port is connect with the cold side flow path in downstream side；And third port, it is connected with flow path is connect.
In the present invention, the heat source body can be the drive motor of vehicle, and the control unit can find out to maintain
The first flow of first thermal medium needed for the function and intensity of the drive motor, the first flow be greater than in order to
The cooling circuit is maintained in the case where the second flow of necessary minimally flowing, controls the flow control
Valve so that in first thermal medium, the part of the first flow flows out from the second port.
According to the explanation of the following embodiments and the accompanying drawings described with reference to the accompanying drawings, it can be readily appreciated that above-mentioned purpose, feature
And advantage.
Detailed description of the invention
Fig. 1 is the structure chart of vehicle waste heat utilization device involved in present embodiment.
Fig. 2A and Fig. 2 B is the structure chart of heat exchanger.
Fig. 3 is in the vehicle flow chart of the processing carried out in waste heat utilization device.
Fig. 4 is the flow chart of flow control processing.
Fig. 5 is the structure chart of the vehicle waste heat utilization device of another embodiment.
Specific embodiment
In the following, enumerate preferred embodiment, referring to attached drawing to vehicle waste heat utilization device according to the present invention into
Row is described in detail.
[structure of 1. vehicles waste heat utilization device 10]
Vehicle shown in FIG. 1 is set to the electric power by being supplied by battery, generator with waste heat utilization device 10 to make to drive
Motor operations and the electric vehicles such as electric car, hybrid vehicle for travelling.Vehicle has cooling with waste heat utilization device 10
Circuit 20, air conditioner loop 50, air-conditioning device 70, drive system control unit 100 and airconditioning control portion 102 also have across cooling
Heat exchanger 110 on circuit 20 and air conditioner loop 50.
Cooling circuit 20 has the cricoid cold side flow path 22 for making first thermal medium such as water flow back, by being situated between by the first heat
Matter absorbs heat from low-temperature heat source body 32 and high temperature heat source body 36, to cool down low-temperature heat source body 32 and high temperature heat source body 36.Cold
But cold side pump 30, low-temperature heat source body 32, flow control valve 34, high temperature heat source body 36, heat exchanger 110, cold in effluent road 22
But side thermostat 38 and radiator 40 are arranged in order along the reflux direction (arrow X) of the first thermal medium according to this.In cold side
Cold side bypass flow path 24 is connected between upstream-side channel and downstream-side channel in flow path 22, radiator 40.In addition, stream
The third port 34c of control valve 34 is connected to the suction inlet 30a of cold side pump 30 by connecting flow path 26.In addition, in cooling
Be additionally provided in circuit 20: cryogenic temperature sensor 44, detection stream become a mandarin control valve 34 first port 34a first heat
First temperature T11 of medium；First upstream temperature sensor 46 detects the of the first thermal medium of inflow heat exchanger 110
One temperature T12；With the first downstream temperature sensor 48, the first temperature of the first thermal medium flowed out from heat exchanger 110 is detected
Spend T13.
Cold side pump 30 sucks the first thermal medium by suction inlet 30a, and is discharged from outlet 30b.Low-temperature heat source body 32
It is that cooling cooling object is needed as the driving circuit or battery of drive motor.The flow path of first thermal medium is close to low temperature
Heat source body 32 and be arranged.The heat of low-temperature heat source body 32 is absorbed by the first thermal medium.Flow control valve 34 includes first port
34a is connect with the cold side flow path 22 of upstream side；Second port 34b is connect with the cold side flow path 22 in downstream side；With
Third port 34c is connected with flow path 26 is connect.Flow control valve 34 makes to flow into the first thermal medium of first port 34a from the
Two-port netwerk 34b and third port 34c outflow, at this point, flow control valve 34 is adjusted from the second port 34b flow flowed out and from the
The flow of three port 34c outflow.High temperature heat source body 36 is that cooling cooling object is needed as the drive motor of traveling.
The flow path of first thermal medium is arranged close to high temperature heat source body 36.For example, being covered around drive motor by shell, and at this
The flow path for the flowing of the first thermal medium is formed in shell.The heat of drive motor is absorbed by shell by the first thermal medium.
It will be described later about heat exchanger 110.
Cold side thermostat 38 is set to the component of cold side flow path 22 and cold side bypass flow path 24, in the first heat
First temperature T13 of medium opens (valve opening) when being lower than predetermined temperature, and is regulation temperature in the first temperature T13 of the first thermal medium
Spend or more when close (valve closing).When cold side thermostat 38 is opened, the upstream side and downstream side of radiator 40 pass through cold side
Flow path 22 is connected to cold side bypass flow path 24, when cold side thermostat 38 is closed, the upstream side and downstream side of radiator 40
Only it is connected to by cold side flow path 22.Radiator 40 is the heat-exchange device with the flow path for the flowing of the first thermal medium,
Heat exchange is carried out between the air outside the first thermal medium and compartment, and the heat of the first thermal medium is dispersed into outside compartment.This
Outside, in order to which the heat dissipation of radiator 40 is effectively performed, and the opposite position of radiator 40 is provided with fan 42.
Air conditioner loop 50 has the cricoid air-conditioning effluent road 52 for making second thermal medium such as freon flow back, and passes through heater
Core 64 distributes the heat of the second thermal medium.In air-conditioning effluent road 52, air-conditioning side pumps 60, heat exchanger 110, electric heater
62 and heater core 64 be arranged in order along the reflux direction (arrow Y) of the second thermal medium according to this.In addition, in air conditioner loop 50
In be provided with the second upstream temperature sensor 66 and the second downstream temperature sensor 68, wherein the second upstream temperature sensor 66
Detect the second temperature T21 of the second thermal medium of inflow heat exchanger 110；Second downstream temperature sensor 68 is detected from heat exchange
The second temperature T22 for the second thermal medium that device 110 flows out.
Air-conditioning side pump 60 sucks the second thermal medium by suction inlet 60a, and is discharged from outlet 60b.About heat exchanger
110 will be described later.Electric heater 62 switches over work and stopping according to the instruction current in airconditioning control portion 102,
The second thermal medium is heated at work.Heater core 64 is that the heat with the flow path for the flowing of the second thermal medium is handed over
Changing device carries out heat exchange between the air in the second thermal medium and the air conditioning duct of air-conditioning device 70 76, and hot by second
The heat of medium is distributed into air conditioning duct 76.
Air-conditioning device 70 have outside air intake duct 72, inner air circulation pipe 74, air conditioning duct 76, air supply tube 80,
Exhaust pipe 78, air blower 82, first 84, second 86, third door 88 and the 4th 90.Air conditioning duct 76 is configured in inside
Air blower 82 and heater core 64, and upstream side is connected to extraneous gas ingress pipe 72 and internal gas circulation pipe 74, downstream
Side is connected to exhaust pipe 78 and air supply tube 80.Outside air intake duct 72 is by the upstream side communication outside compartment with air conditioning duct 76.
Inner air circulation pipe 74 is by the upstream side communication in compartment with air conditioning duct 76.Exhaust pipe 78 is by vehicle exterior and air conditioning duct
76 downstream side connection.Air supply tube 80 will be connected in compartment with the downstream side of air conditioning duct 76.
Air blower 82 so works, i.e., via internal gas via extraneous gas ingress pipe 72 or out of compartment outside compartment
Body circulation pipe 74 sucks air to air conditioning duct 76, and send air via exhaust pipe 78 to outside compartment or through air supply tube 80
Out in compartment.Heater core 64 configures between air blower 82 and exhaust pipe 78 and air supply tube 80.
First 84 company being arranged between air conditioning duct 76 and outside air intake duct 72 and inner air circulation pipe 74
Connect position.First 84 pairs are closed outside air intake duct 72 relative to air conditioning duct 76 and open inner air circulation pipe 74
State and the state for opening outside air intake duct 72 and closing inner air circulation pipe 74 relative to air conditioning duct 76 are cut
It changes.Second 86 the upstream side of heater core 64 is set.Second 86 is to adjust to flow to from the wind that air blower 82 is sent out
The air mixing door of the air quantity of heater core 64.The connection position between air conditioning duct 76 and exhaust pipe 78 is arranged in third door 88
It sets.88 pairs of third door are opened the state of exhaust pipe 78 relative to air conditioning duct 76 and close exhaust pipe 78 relative to air conditioning duct 76
State switch over.4th 90 link position being arranged between air conditioning duct 76 and air supply tube 80.4th 90 pairs of phases
The state opened the state of air supply tube 80 for air conditioning duct 76 and close air supply tube 80 relative to air conditioning duct 76 switches over.
The not shown drive motor of first 84~the 4th 90 on-off action carries out.
Drive system control unit 100 and airconditioning control portion 102 are made of ECU, have the arithmetic units such as processor and
The storage devices such as ROM, RAM.Drive system control unit 100 and airconditioning control portion 102 pass through arithmetic unit execution storage device institute
The program of storage realizes various functions.Drive system control unit 100 controls the driving circuit and work as low-temperature heat source body 32
For the drive motor of high temperature heat source body 36.Airconditioning control portion 102 is according to as indicated by the operation panel 104 being arranged in compartment
Heating requires, come control the movement of various operating members of air-conditioning device 70, the spinning movement of such as air blower 82, first 84~
4th 90 on-off action.In addition, airconditioning control portion 102 adjusts from second end 34 output order electric current of flow control valve
The flow of first thermal medium of mouth 34b output.
Regulation temperature relevant to the first thermal medium and the second thermal medium is stored in the storage device in airconditioning control portion 102
Degree.About the first thermal medium, it is stored with cooling circuit ceiling temperature T1max, cooling circuit ceiling temperature T1max is the first heat
Medium continuously functions the ceiling temperature of required temperature range as refrigerant.
Furthermore information relevant to the flow of the first thermal medium is stored in the storage device in airconditioning control portion 102.Example
Such as, it is stored with the flow Qmm in order to maintain cooling circuit 20 and the first thermal medium that necessary minimally flows.In addition, working as
By in order to be maintained as the drive motor of high temperature heat source body 36 function and intensity required for the temperature of the first thermal medium be set as
When Tm, in order to maintain the flow Qmt of the first thermal medium needed for temperature Tm can be according to the heat of the calorific value C of drive motor and first
First temperature T11 of medium is calculated.In the present embodiment, it sets the calorific value C of drive motor and the first thermal medium
The combination of first temperature T11 mapping graph M associated with flow Qmt.Mapping graph M is asked by the experiment that carries out in advance or simulation
Out.Mapping graph M corresponding with temperature Tm is stored in the storage device in airconditioning control portion 102.
[structures of 2. heat exchangers 110]
As shown in Figure 2 A and 2 B, heat exchanger 110 is in the first thermal medium for flowing through cold side flow path 22 and to flow through air-conditioning side
Heat-exchange device between the circuit of progress heat exchange between second thermal medium of flow path 52.Heat exchanger 110, which has, cools back trackside
Heat exchanger 112 and air conditioner loop side heat exchanger 114.Trackside heat exchanger 112 is cooled back by the high metal of thermal coefficient, example
If aluminium is formed, it is formed in the interior thereof the flow path for the flowing of the first thermal medium.Air conditioner loop side heat exchanger 114 is by thermally conductive system
The high metal of number, such as aluminium are formed, and the flow path for the flowing of the second thermal medium is formed in the interior thereof.
As shown in Figure 2 A, cooling back trackside heat exchanger 112 and air conditioner loop side heat exchanger 114 can connect directly with one another
It connects.In addition, as shown in Figure 2 B, cooling back trackside heat exchanger 112 and air conditioner loop side heat exchanger 114 can be via heat pipe
116 and cooling module (peltier device) 118 be connected to each other.
[movement of 3. vehicles waste heat utilization device 10]
Vehicle is illustrated with the movement of waste heat utilization device 10 using Fig. 3.A series of processing described below are in electricity
The power supply of motor-car is executed during connecting with specific time interval repeatedly.The processing of step S2 is when waiting in winter using warm wind
The waste heat of low-temperature heat source body 32 and high temperature heat source body 36 is used for the processing of the heating in compartment.On the other hand, step S3~step
The processing of rapid S5 is to dissipate the waste heat of low-temperature heat source body 32 and high temperature heat source body 36 to outside compartment when summer etc. is without using warm wind
The processing of hair.
In the step S1 of Fig. 3, airconditioning control portion 102 determines whether there is the heating requirement of air-conditioning device 70.Work as electric vehicle
Occupant when operating operation panel 104, heating working signal or heating is exported to airconditioning control portion 102 from operation panel 104
Stop signal.Airconditioning control portion 102 is determined as there is heating before input heats stop signal when input heats working signal
It is required that.In the case where there is heating to require (step S1: yes), processing enters step S2.On the other hand, in no heating requirement
In the case where (step S1: no), processing enter step S3.
When entering step S2 from step S1, airconditioning control portion 102 makes air blower 82 and air-conditioning side pump 60 in driving
State.At this point, making its driving in the case where not yet blower 82 and air-conditioning side pump 60, in 82 He of blower
Driving condition is maintained in the case where air-conditioning side pump 60.Airconditioning control portion 102 adjusts second 86 position, so that air is from air blast
Machine 82 is sent to heater core 64.In addition, air supply tube 80 is opened by adjusting the 4th 90 position, so that by heater
The air that core 64 heats is sent in compartment, and closes exhaust pipe 78 by the position of adjusting third door 88.Air-conditioning control
Portion 102 processed suitably controls flow control valve 34 when air blower drives.It handles about flow control, is carried out in following [4]
Explanation.
When entering step S3 from step S1, airconditioning control portion 102 is detected to by the first downstream temperature sensor 48
The first temperature T13 and cooling circuit ceiling temperature T1max be compared.In the case where T13 > T1max (step S3: yes),
Keep first temperature T11~T13 of the first thermal medium excessively raised for low-temperature heat source body 32 and/or the overheat of high temperature heat source body 36
State, processing enter step S4.It on the other hand, in the case where T13≤T1max (step S3: no), is low-temperature heat source body 32
It is in permissible range with the temperature of high temperature heat source body 36 and first temperature T11~T13 of the first thermal medium is not increased significantly
State, processing enter step S6.
When entering step S4 from step S3, airconditioning control portion 102 is relative to opening air conditioning duct 76 outside compartment.This
When, airconditioning control portion 102 adjusts the position of first 84 and third door 88, so as to be connected to outside air conditioning duct 76 and compartment.In addition,
Second 86 position is adjusted, to blow from air blower 82 to heater core 64.In addition, passing through adjusting the 4th 90 position
To close air supply tube 80.
In step s 5, airconditioning control portion 102 makes air blower 82 and air-conditioning side pump 60 in driving condition.At this point, still
Make its driving in the case where non-blower 82 and air-conditioning side pump 60, in the feelings of blower 82 and air-conditioning side pump 60
Driving condition is maintained under condition.Airconditioning control portion 102 suitably controls flow control valve 34 when air blower drives.About flow control
System processing, is illustrated in following [4].
When entering step S6 from step S3, airconditioning control portion 102 makes air blower 82 and air-conditioning side pump 60 in stopping
State.At this point, making its stopping in the case where not yet making air blower 82 and air-conditioning side pumps 60 stopping, making 82 He of air blower
Air-conditioning side pump 60 maintains halted state in the case where stopping.Here, temporarily terminate a series of processing, it is standby next to executing
At the time of a series of processing.
[4. flow controls processing]
Vehicle is illustrated with the movement of waste heat utilization device 10 using Fig. 4.Processing and heating described below be (Fig. 3's
Step S2) and the processing of the heat extraction (the step S5 of Fig. 3) to outside compartment execute repeatedly together.
In step s 11, airconditioning control portion 102 is to the first thermal medium flowed out from high temperature heat source body 36 (drive motor)
First temperature T12 and temperature Tm are compared.In the case where T12 < Tm (step S11: yes), (the driving horse of high temperature heat source body 36
Up to) in the state for not being warming up to the temperature for being unable to maintain that its function and intensity, processing enters step S12.On the other hand,
In the case where T12 >=Tm (step S11: no), high temperature heat source body 36 (drive motor), which is in be warming up to, is unable to maintain that its function
Therefore temporarily terminate a series of processing herein with the state of the temperature of intensity, it is standby to the next a series of processing of execution
At the time of.At this point, airconditioning control portion 102 controls flow control valve 34, so as to flow into the first port 34a of flow control valve 34
It is most of from second port 34b outflow in first thermal medium.
When entering step S12 from step S11, airconditioning control portion 102 calculates flow Qmt.Firstly, airconditioning control portion
102 calculate the calorific value C of high temperature heat source body 36 (drive motor) using loss mapping graph, wherein the loss mapping graph is with horse
It is input parameter up to torque and motor rotation information (revolving speed per unit time).It or may be to be measured using positioning apparatus
The traveling-position of electric vehicle, and road information is obtained from cartographic information, to calculate or read and drive from storage device
The corresponding calorific value C in region (upward slope etc.) that the calorific value C of dynamic motor is got higher.Then, airconditioning control portion 102 is by drive motor
Calorific value C and the first temperature T11 detected by cryogenic temperature sensor 44 find out flow as the input parameter of mapping graph M
Qmt。
In step s 13, airconditioning control portion 102 in order to maintain cooling circuit 20 and must minimally flowing the
The flow Qmm of one thermal medium is compared with calculated flow Qmt in step s 12.(step in the case where Qmm < Qmt
S13: yes), for be reduced the first thermal medium for being supplied to high temperature heat source body 36 (drive motor) flow leeway state, place
Reason enters step S14.On the other hand, in the case where Qmm >=Qmt (step S13: no), high temperature is supplied to for no reduction
The state in the leeway of the flow of the first thermal medium of heat source body 36 (drive motor) therefore temporarily terminates a series of place herein
Reason, it is standby at the time of executing next a series of processing.At this point, airconditioning control portion 102 controls flow control valve 34, so that
It flows into most of from second port 34b outflow in the first thermal medium of the first port 34a of flow control valve 34.
When entering step S14 from step S13, airconditioning control portion 102 controls flow control valve 34, so as to flow into flow
It is flowed out from second port 34b the part in the first thermal medium of the first port 34a of control valve 34, flow Qmt.At this point, from
The flow that second port 34b flows out and flow into the first thermal medium of high temperature heat source body 36 (drive motor) is reduced, therefore, every list
First thermal medium of position amount increases from the received heat of drive motor.Then, it is flowed out from drive motor and flows into cooling circuit
The temperature of first thermal medium of side heat exchanger 112 is got higher.As a result, in heat exchanger 110, from the first thermal medium to second
The amount of heat transfer of thermal medium increases, so that the temperature of the second thermal medium be made to increase.
[5. another embodiment]
As shown in figure 5, it is in air-conditioning effluent road 52, can also between the upstream-side channel and downstream-side channel of heat exchanger 110
To be connected with air-conditioning side bypass flow path 54, in addition, being configured with the valve for opening/closing air-conditioning side bypass flow path 54, such as flow control
Valve 92 processed.As shown in figure 5, the merging part in air-conditioning side bypass flow path 54 and air-conditioning effluent road 52 can be set in flow control valve 92
Point, it also can be set in component.Airconditioning control portion 102 controls flow control based on the 2nd temperature T21 and the 2nd temperature T22
The opening and closing of valve 92.For example, controlling flow control valve 92 in the case where the 2nd temperature T21 is higher than the 2nd temperature T22 to open air-conditioning
Side bypass flow path 54.At this point, the second thermal medium does not flow through heat exchanger 110, but flow through air-conditioning side bypass flow path 54.Separately
Outside, in the case where the 2nd temperature T22 is higher than the 2nd temperature T21, flow control valve 92 is controlled to close air-conditioning side bypass flow path 54.
At this point, the second thermal medium does not flow through air-conditioning side bypass flow path 54, but flow through heat exchanger 110.
Cooling circuit 20 and air conditioner loop 50 shown in Fig. 1 and Fig. 5 only have basic structure member.Cooling circuit 20
And/or air conditioner loop 50 can also have other structure members, flow path in the range of not damaging the function of present embodiment.
For example, it is also possible to which compressor is arranged instead of air-conditioning side pump 60.In such a case, it is possible to be arranged compressor in heater core
The upstream side of body 64, also, pressure reducing valve is arranged between heater core 64 and heat exchanger 110.
[summaries of 6. embodiments]
Vehicle waste heat utilization device 10 includes cooling circuit 20, make the first thermal medium flow back into cold side flow path 22 come from
High temperature heat source body 36 absorbs heat；Air conditioner loop 50 makes the second thermal medium flow back into air-conditioning effluent road 52, and passes through heater
Core 64 radiates；With heat exchanger 110, across cooling circuit 20 and air conditioner loop 50 on and be arranged, in the first thermal medium
And second carry out heat exchange between thermal medium.In cold side flow path 22, cold side pumps 30, flow control valve 34, high temperature heat source
Body 36 and heat exchanger 110 are arranged in order according to this, wherein and cold side pumps 30 from suction inlet 30a the first thermal medium of sucking, and from
Outlet 30b discharge；Flow control valve 34 adjusts the flow of the first thermal medium flowed into from upstream side, and makes the first thermal medium stream
Downstream.In air-conditioning effluent road 52, air-conditioning side pump 60, heat exchanger 110 and heater core 64 are arranged in order according to this,
Wherein, air-conditioning side pump 60 sucks the second thermal medium from suction inlet 60a, and is discharged from outlet 60b.Furthermore vehicle waste heat benefit
There is airconditioning control portion 102 with device 10, which makes flow control valve 34 work, so that inflow heat exchanger
First temperature T12 of 110 the first thermal medium is higher than the second temperature T21 of the second thermal medium of inflow heat exchanger 110.
According to above structure, the stream for flowing to the first thermal medium of high temperature heat source body 36 can be adjusted by flow control valve 34
Amount, therefore, can adjust the first temperature T12 of the first thermal medium for flowing through heat exchanger 110.High temperature heat source is flowed through by reducing
The flow of first thermal medium of body 36, per unit first thermal medium increase from the received heat of high temperature heat source body 36, thus
Increase the temperature of the first thermal medium.Then, from the first thermal medium to the amount of heat transfer of the second thermal medium in heat exchanger 110
Increase, so that the second thermal medium be made to heat up.In this way, the waste heat of high temperature heat source body 36 can be effectively utilized according to above structure
Increase the temperature of the second thermal medium, therefore, heating efficiency is improved.
Air-conditioning side bypass flow path 54 is provided in air-conditioning effluent road 52, the air-conditioning side bypass flow path 54 and heat exchanger
110 upstream-side channel and downstream-side channel connection, is also configured with valve, such as flow control valve 92 in air-conditioning effluent road 52,
The valve is more than the second thermal medium for flowing through downstream-side channel in the second temperature T21 for the second thermal medium for flowing through upstream-side channel
Air-conditioning side bypass flow path 54 is opened in the case where second temperature T22, and the second of the second thermal medium for flowing through upstream-side channel
Air-conditioning side bypass flow path is closed in the case where second temperature T22 of the temperature T21 lower than the second thermal medium for flowing through downstream-side channel
54。
When the second temperature T21 of the second thermal medium of inflow heat exchanger 110 is higher than the first heat of inflow heat exchanger 110
When the first temperature T12 of medium, heat is passed to the first thermal medium from the second thermal medium.According to above structure, heat from
Second thermal medium is passed in the state of the first thermal medium, and the second thermal medium of inflow heat exchanger 110 is reduced, therefore, energy
Enough inhibiting the temperature of the second thermal medium reduces.
Vehicle waste heat utilization device 10 also has air-conditioning device 70, and air-conditioning device 70 heats sky by heater core 64
Gas, and air is sent in compartment or outside compartment.Having to the thermally operated requirement of the system of air-conditioning device 70, and from heat exchanger
In the case that first temperature T13 of the first thermal medium of 110 outflows is more than defined cooling circuit ceiling temperature T1max, air-conditioning
Control unit 102 controls air-conditioning device 70, so as to be sent to outside compartment by the air that heater core 64 heats.
It is more than cooling circuit in the first temperature T13 of the first thermal medium flowed out from heat exchanger 110 according to above structure
In the case where ceiling temperature T1max, i.e., in the case where high temperature heat source body 36 overheats, the waste heat of high temperature heat source body 36 can be dissipated
It is dealt into outside compartment.
Vehicle waste heat utilization device 10 has the connection of the suction inlet 30b and flow control valve 34 of connection cold side pump 30
Flow path 26.Flow control valve 34 includes first port 34a, connect with the cold side flow path 22 of upstream side；Second port 34b,
It connect with the cold side flow path 22 in downstream side；With third port 34c, connected with flow path 26 is connect.
For example, high temperature heat source body 36 is the drive motor of vehicle.Airconditioning control portion 102 finds out to tie up in this case
The flow Qmt (first flow) for holding the first thermal medium needed for the function and intensity of drive motor is greater than to tie up in flow Qmt
Cooling circuit 20 is held in the case where the flow Qmm (the 2nd flow) of necessary minimally flowing, controls flow control valve 34,
So that in the first thermal medium, the part of flow Qmt flows out from second port 34b.
In addition, vehicle according to the present invention is not limited to above embodiment with waste heat utilization device, certainly, do not departing from
In the case where purport of the invention, various structures can be used.
Claims (5)
1. a kind of vehicle waste heat utilization device, with cooling circuit, air conditioner loop and heat exchanger, wherein the cooling
Circuit absorbs heat from heat source body by making the first thermal medium flow back into cold side flow path；The air conditioner loop makes the second heat be situated between
Matter flows back into air-conditioning effluent road, and is radiated by heater core；The heat exchanger is across the cooling circuit and described
It is arranged on air conditioner loop, heat exchange is carried out between first thermal medium and second thermal medium, the vehicle is used useless
Heat utilization device is characterized in that,
In the cold side flow path, cold side pump, flow control valve, the heat source body and the heat exchanger are according to the sequence
Configuration, wherein the cold side pump sucks first thermal medium from suction inlet, and is discharged from outlet；The flow control
The flow for first thermal medium that valve regulation is flowed into from upstream side, and first thermal medium is made to flow to downstream side,
In air-conditioning effluent road, air-conditioning side pump, the heat exchanger, the heater core are arranged in order according to this,
In, the air-conditioning side pump sucks second thermal medium from suction inlet, and is discharged from outlet,
Also there is control unit, the control unit makes the flow control valve work, so as to flow into described the of the heat exchanger
The temperature of one thermal medium is higher than the temperature for flowing into second thermal medium of the heat exchanger.
2. vehicle waste heat utilization device according to claim 1, which is characterized in that
Air-conditioning side bypass flow path, air-conditioning side bypass flow path and the heat exchanger are provided in air-conditioning effluent road
Upstream-side channel and downstream-side channel connection, are also configured with valve, the valve is flowing through the upstream in air-conditioning effluent road
The temperature of second thermal medium on effluent road is higher than the feelings for flowing through the temperature of second thermal medium of the downstream-side channel
Under condition, air-conditioning side bypass flow path is opened, and the temperature in second thermal medium for flowing through the upstream-side channel is lower than
In the case where the temperature of second thermal medium for flowing through the downstream-side channel, air-conditioning side bypass flow path is closed.
3. vehicle waste heat utilization device according to claim 1, which is characterized in that
Also have air-conditioning device, the air-conditioning device by the heater core heating air, and be sent in compartment or
Outside compartment,
First thermal medium for having to the thermally operated requirement of the system of the air-conditioning device, and being flowed out from the heat exchanger
Temperature be more than defined cooling circuit ceiling temperature in the case where, the control unit controls the air-conditioning device, so that by institute
The air for stating heater core heating is sent to outside the compartment.
4. vehicle waste heat utilization device described in any one of claim 1 to 3, which is characterized in that
With connection flow path, the suction inlet and the flow control valve of cold side pump described in the connection fluid communication,
The flow control valve has: first port, connect with the cold side flow path of upstream side；Second port, with
The cold side flow path in downstream side connects；And third port, it is connected with flow path is connect.
5. vehicle waste heat utilization device according to claim 4, which is characterized in that
The heat source body is the drive motor of vehicle,
The first of the control unit first thermal medium needed for finding out to maintain the function and intensity of the drive motor
Flow is greater than the second flow in order to maintain the cooling circuit and necessary minimally flowing in the first flow
In the case where, control the flow control valve so that in first thermal medium, the part of the first flow is from described
Two-port netwerk outflow.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2017-231547 | 2017-12-01 | ||
| JP2017231547A JP2019098906A (en) | 2017-12-01 | 2017-12-01 | Vehicular waste heat utilization device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109878296A true CN109878296A (en) | 2019-06-14 |
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ID=66924932
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811452472.5A Pending CN109878296A (en) | 2017-12-01 | 2018-11-30 | Vehicle waste heat utilization device |
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| Country | Link |
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| JP (1) | JP2019098906A (en) |
| CN (1) | CN109878296A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114763062A (en) * | 2021-01-13 | 2022-07-19 | 本田技研工业株式会社 | Vehicle with a steering wheel |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2021017114A (en) * | 2019-07-18 | 2021-02-15 | トヨタ自動車株式会社 | Vehicle cooling system |
| CN114103754B (en) * | 2021-11-29 | 2022-11-18 | 东风汽车集团股份有限公司 | Waste heat utilization system of hybrid electric vehicle and control method |
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| US20140290299A1 (en) * | 2011-12-05 | 2014-10-02 | Panasonic Corporation | Vehicle air-conditioning device |
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| US20140290299A1 (en) * | 2011-12-05 | 2014-10-02 | Panasonic Corporation | Vehicle air-conditioning device |
| CN103192676A (en) * | 2012-01-05 | 2013-07-10 | 杭州三花研究院有限公司 | Automobile air condition system |
| JP2013203326A (en) * | 2012-03-29 | 2013-10-07 | Panasonic Corp | Air conditioner for vehicle |
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| JP2019098906A (en) | 2019-06-24 |
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Application publication date: 20190614 |