CN206650604U - A kind of piston temperature difference electricity generation device based on temperature feedback control - Google Patents
A kind of piston temperature difference electricity generation device based on temperature feedback control Download PDFInfo
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- CN206650604U CN206650604U CN201720442351.7U CN201720442351U CN206650604U CN 206650604 U CN206650604 U CN 206650604U CN 201720442351 U CN201720442351 U CN 201720442351U CN 206650604 U CN206650604 U CN 206650604U
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- piston
- oil
- electrothermal module
- oil duct
- thermocouple
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
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Abstract
The utility model discloses a kind of piston temperature difference electricity generation device based on temperature feedback control, thermo-electric generation is carried out using the waste heat of top surface on internal piston, is mainly made up of electrothermal module, integrated stable voltage circuit, super capacitor energy device, voltage raising and reducing DC/DC circuits, load, cooling device, magnetic valve, piston pin, connecting rod, the first thermocouple, the second thermocouple, micro-control unit MCU.Top surface is fitted on the hot junction of electrothermal module and internal piston, and the cold end of electrothermal module and the upper surface of cooling device oil pocket fit, and pressure cooling is carried out to electrothermal module cold end using machine oil.The utility model solves the powerup issue of internal piston, and electric energy is provided for piston optimization design；The utility model is cooled down using machine oil to electrothermal module cold end, reduces cold junction temperature, increases generated output；The utility model only when the electrothermal module both ends temperature difference is less than limit value, just circulates fuel feeding cooling, reduces lubricating oil pump load；The utility model does not influence on the normal work of internal combustion engine.
Description
Technical field
It the utility model is related to afterheat of IC engine and utilize field, more precisely, the utility model is related to a kind of based on temperature
Spend the piston temperature difference electricity generation device of feedback control.
Background technology
Car combustion engine only has 25% with heat caused by fuel combustion and is converted into useful work output, removes 5% machine
Tool is lost, and the remaining 70% cooled water of heat and tail gas are taken away and dissipated in vain, thus afterheat of IC engine is forced
Hot-cast socket will produce a big chunk energy.It is significantly by the power supply that this portion of energy is used for automobile equipment.
The waste heat of internal combustion engine can be converted to electric energy by thermo-electric generation, realized the recycling of the energy, reached the effect of energy-conservation
Fruit.Research currently for internal combustion engine field gradually increases, such as the variable-compression-ratio piston based on motor, based on wireless
WIFI variable-compression-ratio piston.These researchs are required for solving the problems, such as internal piston power supply without exception, and piston is in
Engine interior, make the round linear motion of high speed in the course of work, if using common line connection, outside piston
Portion introduces power circuit, and one end fixes, an end motion, poor reliability, and how to arrange the problem of being one very big.Piston top
For the mean temperature in portion more than 400 DEG C, internal piston gas temperature is lower than the temperature of top land more than 100 DEG C, if can be directly
This part temperature difference is utilized, providing electric energy for piston optimization design supports, it will has very big application value and meaning.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of piston thermo-electric generation based on temperature feedback control
Device, generated electricity using the waste heat of top surface on internal piston, pressure cooling carried out using machine oil, and to electrothermal module hot junction and
The temperature difference between cold end is regulated and controled, and power supply is provided for the optimization design of piston.
In order to solve the above technical problems, the utility model adopts the following technical scheme that realization：
A kind of piston temperature difference electricity generation device based on temperature feedback control described in the utility model, including electrothermal module,
Integrated stable voltage circuit, super capacitor energy device, voltage raising and reducing DC/DC circuits, load, cooling device, magnetic valve, piston pin,
Connecting rod, the first thermocouple, the second thermocouple, micro-control unit MCU, it is characterised in that：
Described magnetic valve includes electromagnetic valve body, secured core, armature spring, moving armature, rubber valve, electromagnetic wire
Circle；
Described electrothermal module, integrated stable voltage circuit, super capacitor energy device, voltage raising and reducing DC/DC circuits phase successively
Even, the output end of voltage raising and reducing DC/DC circuits is connected with load；
Described electrothermal module is arranged on internal piston on top surface, and the hot junction of electrothermal module is close to push up on internal piston
Face, cooling device is installed on the cold end face of electrothermal module；
Described magnetic valve is arranged on the right side of cooling device on oil duct；
The first described the installation of TC exists in the lower right corner position of cooling device oil pocket upper surface, the second the installation of TC
The lower right corner position in electrothermal module hot junction face；
Described the first thermocouple, the second thermocouple, magnetic valve are connected with micro-control unit MCU respectively.
A kind of piston temperature difference electricity generation device based on temperature feedback control, it is characterised in that described connecting rod is left in shaft
Right both sides, using connecting rod tip as entrance, wrist-pin end of connecting rod is outlet, is respectively drilled with an oil duct.
A kind of piston temperature difference electricity generation device based on temperature feedback control, it is characterised in that the oil in described piston pin
Road arrangement is bilateral symmetry, and piston pin has a circle square-section oily in the contact position with left hand piston key seat oil duct junction
Groove, piston pin with connecting rod on the left of the contact position of oil duct junction have a circle square-section oil groove, in this two circle oil groove bottom along hanging down
Directly in being each drilled with short oil road in piston pin axis direction, and short oil road is connected by the long oil duct parallel to piston pin axis
Get up.
A kind of piston temperature difference electricity generation device based on temperature feedback control, it is characterised in that described the first thermocouple and
Second thermocouple is chip thermocouple.
A kind of piston temperature difference electricity generation device based on temperature feedback control, it is characterised in that electrothermal module is magnetic valve, micro-
Control unit MCU powers.
A kind of piston temperature difference electricity generation device based on temperature feedback control, it is characterised in that machine oil is passed through song by lubricating oil pump
Spindle guide enters the left side oil duct of connecting rod, successively by oil duct, left hand piston key seat oil duct, cooling device left side oil duct on the left of piston pin
Into in the oil pocket of cooling device, subsequent machine oil passes through oil duct, right hand piston key seat oil duct, piston pin right side on the right side of cooling device
Oil duct flows back on the right side of oil duct, connecting rod.
The beneficial effects of the utility model are compared with prior art：
A kind of 1. piston temperature difference electricity generation device based on temperature feedback control described in the utility model, in internal piston profit
Generated electricity with the temperature difference, solve the powerup issue of internal piston small space, providing electric energy for piston optimization design supports, keeps away
Exempt to introduce the problem of power circuit is brought from piston exterior, reduced technical difficulty, greatly simplify supply line.
A kind of 2. piston temperature difference electricity generation device based on temperature feedback control described in the utility model, in electrothermal module
Cooling device is installed in cold end face, and electrothermal module is cooled down using machine oil, reduces electrothermal module cold junction temperature, increases generating work(
Rate.
A kind of 3. piston temperature difference electricity generation device based on temperature feedback control described in the utility model, to electrothermal module heat
End and cold junction temperature are monitored, and when the temperature difference between electrothermal module hot junction and cold end is less than limit value, ability continuous oil supply is carried out
Cooling, reduces lubricating oil pump load.
4. a kind of piston temperature difference electricity generation device based on temperature feedback control described in the utility model, is arranged in piston
Portion, the normal work of internal combustion engine is not influenceed.
Brief description of the drawings
Fig. 1 is electrothermal module power supply schematic flow sheet described in the utility model；
Fig. 2 is on a kind of piston temperature difference electricity generation device front view based on temperature feedback control described in the utility model
Full sectional view；
Fig. 3 is the front view of piston pin described in the utility model；
Fig. 4 is the C-C projection views of piston pin front view described in the utility model；
Fig. 5 is the front view of connecting rod described in the utility model；
Fig. 6 is the A-A projection views of connecting rod front view described in the utility model；
Fig. 7 is the B-B projection views of connecting rod front view described in the utility model；
Fig. 8 is the first position of thermocouple schematic diagram described in the utility model；
Fig. 9 is the second position of thermocouple schematic diagram described in the utility model；
Figure 10 is the full sectional view of magnetic valve front view described in the utility model；
Figure 11 is micro-control unit MCU described in the utility model workflow schematic diagram；
Figure 12 is the schematic diagram of integrated stable voltage circuit described in the utility model；
Figure 13 is the schematic diagram of voltage raising and reducing DC/DC circuits described in the utility model.
In figure：1. electrothermal module, 2. integrated stable voltage circuits, 3. super capacitor energy devices, 4. voltage raising and reducing DC/DC electricity
Road, 5. loads, 6. cooling devices, 7. magnetic valves, 8. piston pins, 9. connecting rods, 10. first thermocouples, 11. second thermocouples, 12.
Micro-control unit MCU, 13. electromagnetic valve bodies, 14. secured cores, 15. armature springs, 16. moving armatures, 17. rubber valves,
18. magnet coil.
Embodiment
As shown in Figures 1 and 2, a kind of piston thermo-electric generation dress based on temperature feedback control described in the utility model
Put, including electrothermal module 1, integrated stable voltage circuit 2, super capacitor energy device 3, voltage raising and reducing DC/DC circuits 4, load 5, it is cold
But device 6, magnetic valve 7, piston pin 8, connecting rod 9, the first thermocouple 10, the second thermocouple 11, micro-control unit MCU12.
Electrothermal module 1, integrated stable voltage circuit 2, super capacitor energy device 3, voltage raising and reducing DC/DC circuits 4 phase successively
Even, the output end of voltage raising and reducing DC/DC circuits 4 is connected with load 5.
Electrothermal module 1 is arranged on internal piston on top surface, and top surface on internal piston is close in the hot junction of electrothermal module 1, heat
The cold end face of electric module 1 is provided with cooling device 6.Top surface, the oil pocket upper surface of cooling device 6 on electrothermal module 1 and internal piston
Between scribble heat-conducting silicone grease, enhancing heat transfer.
As shown in Fig. 2, Fig. 3 and Fig. 4, the piston pin 8 of former machine is reprocessed, the oil duct arrangement in piston pin 8 is left
Right symmetrical structure, piston pin 8 have a circle square-section oil groove, piston pin 8 in the contact position with left hand piston key seat oil duct junction
There is a circle square-section oil groove in the contact position with the left side oil duct junction of connecting rod 9, in this two circle oil groove bottom along perpendicular to piston
Four short oil roads are each drilled with the axis direction of pin 8, and it is short by this eight by four long oil ducts parallel to the axis of piston pin 8
Oil duct connects.
Often circle square-section oil groove each side has the seal groove of a circle square-section, and polytetrafluoroethyl-ne is installed in seal groove
Alkene O-ring seals, are sealed to oil groove.
As shown in Fig. 5, Fig. 6 and Fig. 7, the connecting rod 9 of former machine is reprocessed, at left and right sides of the shaft of connecting rod 9, with even
The end greatly of bar 9 is entrance, and the small end of connecting rod 9 is outlet, is respectively drilled with an oil duct.
The bent axle of former machine is reprocessed, creeps into two oil ducts from the shaft end of bent axle, and oil duct is drilled out along rod journal.
As shown in Fig. 2 the cooling medium of cooling device 6 is machine oil, cooling device 6 each side has an oil duct, one
End is connected with the oil pocket of cooling device 6, and the other end is connected with left hand piston key seat oil duct, right hand piston key seat oil duct respectively.Cooling
The oil pocket upper surface of device 6 and the cold end of electrothermal module 1 fit.
Machine oil in the oil pocket of cooling device 6 cools down to the cold end of electrothermal module 1, increases the cold end of electrothermal module 1 and heat
The temperature difference between end, increase generated output.
As shown in Fig. 2 and Figure 10, magnetic valve 7 includes electromagnetic valve body 13, secured core 14, armature spring 15, activity rank
Iron 16, rubber valve 17, magnet coil 18.
Magnetic valve 7 is arranged on the right side oil duct of cooling device 6, and upper port is oil inlet, and lower port is oil-out.It is powered
When, magnet coil 18 produces electromagnetic force, and moving armature 16 is moved to the left, and armature spring 15 is compressed, and rubber valve 17, which moves to left, to be beaten
Open, the right side oil circuit conducting of cooling device 6；During power-off, magnet coil 18 does not produce electromagnetic force, the promotion activity of armature spring 15 rank
Iron 16 moves to right, and rubber valve 17 moves to right closing, and the right side oil circuit of cooling device 6 blocks.
As shown in Fig. 8 and Fig. 9, the first thermocouple 10 is arranged on the lower right corner position of the oil pocket upper surface of cooling device 6, and second
Thermocouple 11 is arranged on the lower right corner position in the hot junction face of electrothermal module 1, and the first thermocouple 10 and the second thermocouple 11 are chip heat
Galvanic couple.
As shown in figure 11, the first thermocouple 10, the second thermocouple 11, magnetic valve 7 are respectively connected to micro-control unit MCU12,
Micro-control unit MCU12 is arranged on internal piston.
As shown in figure 12, the homophase input constant pressure source that described integrated stable voltage circuit 2 is made up of operational amplifier, wherein
The output voltage U of integrated stable voltage circuit 2OUT=(1+Rf/R1)·UZ, RfIt is adjustable resistance, R1For fixed value resistance, UZIt is steady for voltage-stabiliser tube
Determine voltage, can be by adjusting RfValue change integrated stable voltage circuit 2 output voltage UOUTValue, therefore integrated stable voltage circuit 2 is
The constant pressure source of continuously adjustabe.
As shown in figure 13, described voltage raising and reducing DC/DC circuits 4 are designed based on Buck-Boost stepping-up/stepping-down chopper circuits
, the voltage acquisition unit of the control system of voltage raising and reducing DC/DC circuits 4 carries out real-time sampling to 5 voltage changes of load, and system is adopted
After sample feedback voltage compared with reference voltage, then adjusted through PID regulator, output result compared with triangular signal,
The dutycycle of PWM (Pulse width modulation pulse width prescriptions) pulse, pwm circuit are produced and accordingly accounted for needed for modulation generation
The pwm pulse control power switch pipe Q of empty ratio break-make.Turned in switching tube Q, during diode VD ends, voltage raising and reducing DC/
The input voltage U of DC circuits 4inTo inductance L input energies, the output voltage U of voltage raising and reducing DC/DC circuits 4 is maintained by electric capacity COUTBase
This is constant, realizes the stabilization of 5 voltages of load；End in switching tube Q, during diode VD is turned on, inductance L stores previous stage
Energy be released to electric capacity C and load 5, with this come realize load 5 voltages stabilization.And the maintained switch pipe Q-switch cycle is not
Become, switching tube Q ON times are longer, the output voltage U of voltage raising and reducing DC/DC circuits 4OUTIt is higher；Similarly, switching tube Q ON times
It is shorter, the output voltage U of voltage raising and reducing DC/DC circuits 4OUTIt is lower.
As shown in Fig. 2, Fig. 8, Fig. 9, Figure 10 and Figure 11, the temperature in the first thermocouple 10 measurement electrothermal module 1 cold end face, the
Two thermocouples 11 measure 1 hot end face temperature of electrothermal module, and by the temperature feedback in the cold end face of electrothermal module 1 and hot junction face to micro-control
Unit MCU12 processed, micro-control unit MCU12 calculate the temperature difference between the hot junction of electrothermal module 1 and cold end.
When the temperature difference between the hot junction of electrothermal module 1 and cold end is less than 200 DEG C, micro-control unit MCU12 control electromagnetism
Valve 7 is powered, and machine oil is imported the left side oil duct of connecting rod 9, passed through successively by the right side oil duct conducting of cooling device 6, lubricating oil pump by bent axle
Cross the oil pocket that four oil ducts in the left side of piston pin 8, left hand piston key seat oil duct, the left side oil duct of cooling device 6 enter cooling device 6
In, subsequent machine oil is right by the right side oil duct of cooling device 6, right hand piston key seat oil duct, four oil ducts in the right side of piston pin 8, connecting rod 9
Side oil duct flows back to, so as to form circulation.
When the temperature difference between the hot junction of electrothermal module 1 and cold end is more than 200 DEG C, micro-control unit MCU12 control electromagnetism
Valve 7 powers off, and the right side oil duct of cooling device 6 interrupts, fuel cut-off, and the machine oil in oil duct is in not flow regime.
As shown in Figure 1, Figure 2, shown in Figure 12 and Figure 13, electrothermal module 1 is using on top surface and the oil pocket of cooling device 6 on internal piston
The temperature difference between surface is generated electricity, and caused electric energy carries out voltage stabilizing by integrated stable voltage circuit 2, and then is super capacitor energy
Device 3 carries out voltage stabilizing charging, and voltage raising and reducing DC/DC circuits 4 make the output voltage of super capacitor energy device 3 keep stable, are
Load 5 provides stable input voltage.
As shown in Fig. 1, Figure 10 and Figure 11, described magnetic valve 7 and micro-control unit MCU12 are first devices of load characteristic
Part, respectively the output end with voltage raising and reducing DC/DC circuits 4 be connected, provide electric energy by electrothermal module 1.
A kind of operation principle of the piston temperature difference electricity generation device based on temperature feedback control：
As shown in Figure 1, Figure 2 with shown in Figure 11, when the temperature difference between the hot junction of electrothermal module 1 and cold end be less than 200 DEG C when, micro-control
Unit MCU12 controls magnetic valve 7 processed is powered, and machine oil is imported connecting rod by the right side oil duct conducting of cooling device 6, lubricating oil pump by bent axle
7 left side oil duct, enter successively by four oil ducts in the left side of piston pin 9, left hand piston key seat oil duct, the left side oil duct of cooling device 6
In the oil pocket for entering cooling device 6, subsequent machine oil is right by the right side oil duct of cooling device 6, right hand piston key seat oil duct, piston pin 9
The oil duct of side four flows back to, so as to form circulation；When the temperature difference between the hot junction of electrothermal module 1 and cold end is more than 200 DEG C, micro-control
Unit MCU12 controls magnetic valve 7 processed is powered off, and the right side oil duct of cooling device 6 interrupts, fuel cut-off, and the machine oil in oil duct is in not
Flow regime.
Electrothermal module 1 is generated electricity using the waste heat of top surface on internal piston, and the cold end of electrothermal module 1 is entered using machine oil
Row forces cooling.Electric energy caused by electrothermal module 1 carries out voltage stabilizing by integrated stable voltage circuit 2, and then is filled for super capacitor energy
3 carry out voltage stabilizing chargings are put, voltage raising and reducing DC/DC circuits 4 make the output voltage of super capacitor energy device 3 keep stable, are negative
Carry 5 and stable input voltage is provided.
Claims (6)
1. a kind of piston temperature difference electricity generation device based on temperature feedback control, including electrothermal module (1), integrated stable voltage circuit (2),
Super capacitor energy device (3), voltage raising and reducing DC/DC circuits (4), load (5), cooling device (6), magnetic valve (7), piston pin
(8), connecting rod (9), the first thermocouple (10), the second thermocouple (11), micro-control unit MCU (12), it is characterised in that：
Described magnetic valve (7) include electromagnetic valve body (13), secured core (14), armature spring (15), moving armature (16),
Rubber valve (17), magnet coil (18)；
Described electrothermal module (1), integrated stable voltage circuit (2), super capacitor energy device (3), voltage raising and reducing DC/DC circuits
(4) it is sequentially connected, the output end of voltage raising and reducing DC/DC circuits (4) is connected with load (5)；
Described electrothermal module (1) is arranged on internal piston on top surface, and the hot junction of electrothermal module (1) is close to push up on internal piston
Face, cooling device (6) is installed on the cold end face of electrothermal module (1)；
Described magnetic valve (7) is arranged on the right side of cooling device (6) on oil duct；
Described the first thermocouple (10) is arranged on the lower right corner position of cooling device (6) oil pocket upper surface, the second thermocouple
(11) it is arranged on the lower right corner position in electrothermal module (1) hot junction face；
Described the first thermocouple (10), the second thermocouple (11), magnetic valve (7) are connected with micro-control unit MCU (12) respectively.
2. according to a kind of piston temperature difference electricity generation device based on temperature feedback control described in claim 1, it is characterised in that institute
The connecting rod (9) stated is held as entrance greatly at left and right sides of shaft with connecting rod (9), and connecting rod (9) small end is outlet, is respectively drilled with an oil
Road.
3. according to a kind of piston temperature difference electricity generation device based on temperature feedback control described in claim 1, it is characterised in that institute
Oil duct arrangement in the piston pin (8) stated is bilateral symmetry, and piston pin (8) is in the contact with left hand piston key seat oil duct junction
There is a circle square-section oil groove position, and piston pin (8) has a circle square-section in the contact position with connecting rod (9) left side oil duct junction
Oil groove, short oil road is each drilled with piston pin (8) axis direction on this two circle oil grooves bottom edge, and by parallel to work
The long oil duct of plug pin (8) axis connects short oil road.
4. according to a kind of piston temperature difference electricity generation device based on temperature feedback control described in claim 1, it is characterised in that institute
The first thermocouple (10) and the second thermocouple (11) stated are chip thermocouple.
5. according to a kind of piston temperature difference electricity generation device based on temperature feedback control described in claim 1, it is characterised in that heat
Electric module (1) is magnetic valve (7), micro-control unit MCU (12) power supplies.
6. according to a kind of piston temperature difference electricity generation device based on temperature feedback control described in claim 1, it is characterised in that machine
Oil pump imports machine oil by bent axle the left side oil duct of connecting rod (9), successively by oil duct, left hand piston pin on the left of piston pin (8)
Oil duct enters in the oil pocket of cooling device (6) on the left of seat oil duct, cooling device (6), and subsequent machine oil passes through on the right side of cooling device (6)
Oil duct, right hand piston key seat oil duct, piston pin (8) right side oil duct, connecting rod (9) right side oil duct flow back to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720442351.7U CN206650604U (en) | 2017-04-25 | 2017-04-25 | A kind of piston temperature difference electricity generation device based on temperature feedback control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720442351.7U CN206650604U (en) | 2017-04-25 | 2017-04-25 | A kind of piston temperature difference electricity generation device based on temperature feedback control |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206650604U true CN206650604U (en) | 2017-11-17 |
Family
ID=60276632
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720442351.7U Withdrawn - After Issue CN206650604U (en) | 2017-04-25 | 2017-04-25 | A kind of piston temperature difference electricity generation device based on temperature feedback control |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206650604U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106877744A (en) * | 2017-04-25 | 2017-06-20 | 吉林大学 | A kind of piston temperature difference electricity generation device based on temperature feedback control |
| CN109223573A (en) * | 2018-10-31 | 2019-01-18 | 周晓红 | A kind of self-heating thermal-insulating type nursing bottle |
-
2017
- 2017-04-25 CN CN201720442351.7U patent/CN206650604U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106877744A (en) * | 2017-04-25 | 2017-06-20 | 吉林大学 | A kind of piston temperature difference electricity generation device based on temperature feedback control |
| CN106877744B (en) * | 2017-04-25 | 2018-10-19 | 吉林大学 | A kind of piston temperature difference electricity generation device based on temperature feedback control |
| CN109223573A (en) * | 2018-10-31 | 2019-01-18 | 周晓红 | A kind of self-heating thermal-insulating type nursing bottle |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20171117 Effective date of abandoning: 20181019 |
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