CN109494081B - Super capacitor thermal management system and method for tramcar - Google Patents
Super capacitor thermal management system and method for tramcar Download PDFInfo
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- CN109494081B CN109494081B CN201910013802.9A CN201910013802A CN109494081B CN 109494081 B CN109494081 B CN 109494081B CN 201910013802 A CN201910013802 A CN 201910013802A CN 109494081 B CN109494081 B CN 109494081B
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- 239000003990 capacitor Substances 0.000 title claims abstract description 78
- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000001816 cooling Methods 0.000 claims abstract description 91
- 230000008859 change Effects 0.000 claims abstract description 15
- 239000011159 matrix material Substances 0.000 claims abstract description 15
- 239000000178 monomer Substances 0.000 claims abstract description 10
- 238000007726 management method Methods 0.000 claims description 23
- 229920002545 silicone oil Polymers 0.000 claims description 13
- 239000007788 liquid Substances 0.000 claims description 7
- 230000001105 regulatory effect Effects 0.000 claims description 5
- 238000004378 air conditioning Methods 0.000 claims description 4
- RIRXDDRGHVUXNJ-UHFFFAOYSA-N [Cu].[P] Chemical compound [Cu].[P] RIRXDDRGHVUXNJ-UHFFFAOYSA-N 0.000 claims description 3
- 230000001276 controlling effect Effects 0.000 claims description 3
- 230000001351 cycling effect Effects 0.000 claims description 3
- 230000003252 repetitive effect Effects 0.000 claims description 3
- 238000003491 array Methods 0.000 abstract description 2
- 230000017525 heat dissipation Effects 0.000 abstract description 2
- 238000005457 optimization Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000032683 aging Effects 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000000855 fermentation Methods 0.000 description 1
- 230000004151 fermentation Effects 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/14—Arrangements or processes for adjusting or protecting hybrid or EDL capacitors
- H01G11/18—Arrangements or processes for adjusting or protecting hybrid or EDL capacitors against thermal overloads, e.g. heating, cooling or ventilating
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/10—Multiple hybrid or EDL capacitors, e.g. arrays or modules
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/78—Cases; Housings; Encapsulations; Mountings
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/13—Energy storage using capacitors
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention discloses a super capacitor thermal management system and method for a tramcar, wherein the super capacitor thermal management system comprises a super capacitor module, a rotary valve, radiating fins, a phase change matrix, a control circuit, a driver, a gas flow passage, an inner box body and an outer box body, wherein the super capacitor module is formed by arranging a plurality of super capacitor single arrays; the direction of the air flow is changed through the adjustment and matching of a rotary valve in the cooling air flow channel, so that the reciprocating flow of the cooling air flow is realized; the super capacitor module formed by a plurality of super capacitor monomers is soaked in the phase change matrix and sealed in the inner box body; and cooling fins are arranged between the rows in the super capacitor module and extend out of the top cover of the inner box body, and the cooling fins extend to the gas flow channel. The super capacitor for the trolley bus can realize uniform heat dissipation, effectively reduce the temperature difference of each region in the super capacitor group, ensure that the super capacitor keeps better consistency, and improve the service life and the economic performance of the system.
Description
Technical Field
The invention belongs to the technical field of tramcars, and particularly relates to a super capacitor thermal management system and method for a tramcar.
Background
With the continuous fermentation of the environmental pollution problem caused by urban traffic jams and automobile exhaust emission, the development of urban public transportation and the addition of new energy technology become hot spots for the current urban transportation development. The existing overhead net-free modern tram mainly developed generally adopts a high-energy super capacitor as an auxiliary power supply, and the super capacitor used by the tram is more difficult to dissipate heat due to limited space and difficult utilization of windward effect, so that heat can be rapidly accumulated to cause higher temperature in the middle area of the super capacitor module in the high-current high-rate charge-discharge process, and if each area cannot be effectively cooled in time, the temperature imbalance among the super capacitors can be aggravated, the aging speed is accelerated, and the performance parameters are deteriorated. In order to ensure that the super capacitor module covers the whole service life of the vehicle, a thermal management system is required to control the temperature within 22-25 ℃, and the temperature difference of each area is strictly controlled so as to keep better consistency.
At present, a tramcar generally adopts an active air-cooled thermal management system, and air-conditioning air in a carriage is led into the carriage from the bottom of the inner carriage to forcedly dissipate heat of monomers in each group of super capacitor modules. After the cooling air is introduced into the outer box body, the cooling air flows into the outer box body from the left side of the module in a serial ventilation mode, and air is heated in the flowing process, so that the temperature of a module in the right side area in the module is higher than that in the left side easily in a unidirectional forced air cooling thermal management mode, and the temperature gradient exists in the super capacitor monomer in the module, so that the power output and the service life of the super capacitor monomer are seriously influenced.
Disclosure of Invention
In order to solve the problems, the invention provides a super capacitor heat management system and method for a tramcar, which can realize uniform heat dissipation of the super capacitor for the tramcar, effectively reduce the temperature difference of each region in a super capacitor group, ensure that the super capacitor keeps better consistency, and improve the service life and the economic performance of the system.
In order to achieve the above purpose, the invention adopts the following technical scheme: a super-capacitor thermal management system for a tramcar comprises a super-capacitor module, a rotary valve, radiating fins, a phase-change matrix, a control circuit, a driver, a gas flow channel, an inner box body and an outer box body, wherein the super-capacitor module is formed by arranging a plurality of super-capacitor single arrays;
a gas flow passage is arranged at the top of the outer box body, the gas flow passage is communicated with a cooling air flow inlet and a gas flow outlet, and a rotary valve is arranged on the gas flow passage; the control circuit is connected with the driver, and the driver controls the rotary valve after receiving the signal of the control circuit; the direction of the air flow is changed through the adjustment and matching of a rotary valve in the cooling air flow channel, so that the reciprocating flow of the cooling air flow is realized;
the inner box body is arranged in the outer box body, and a super capacitor module formed by a plurality of super capacitor monomers is soaked in the phase change matrix and sealed in the inner box body; and cooling fins are arranged between the rows in the super capacitor module and extend out of the top cover of the inner box body, and the cooling fins extend to the gas flow channel.
Further, the gas flow passage spans the top of the outer box body, two ends of the top of the outer box body are respectively provided with a through hole I and a through hole II, and the gas flow passage is communicated with the through holes I and II;
a cooling air flow inlet is formed in one end, close to the through hole I, of the air flow channel, and an air flow outlet I is formed in the top of the side wall of the outer box body, close to the cooling air flow inlet; a rotary valve I is arranged at the position of the through hole I and the airflow outlet I, the through hole I is opened or closed, and the airflow outlet I is closed or opened at the same time;
one end of the gas flow channel close to the through hole II is of a closed structure, the top of the side wall of the outer box body close to the through hole II is provided with a gas flow outlet II, the through hole II and the gas flow outlet II are provided with a rotary valve II, the through hole II is opened or closed, and the gas flow outlet II is closed or opened at the same time;
through the direction of control rotary valve I and rotary valve II, adjust opening or closure of through-hole I, through-hole II, air current export I and air current mouth II to adjust the cooperation and change the air current direction, realize the reciprocating flow of cooling air current.
Further, fans are arranged at the cooling air flow inlet, the air flow outlet I and the air flow outlet II, and are connected to a control circuit through drivers; the cooling air in the box body is guided into the air by the pressure difference generated by the rotation of the fan.
Further, the rotary valve comprises a rotating shaft, a plug body and a rotary driving piece, wherein the plug body is arranged on the rotating shaft and axially rotates along the rotating shaft, the rotary driving piece drives the plug body to move, and the direction of cooling flow is controlled by rotating the plug body around the central rotating shaft of the valve body.
Furthermore, the phase-change matrix is liquid phase-change silicone oil, the phase-change temperature of the phase-change silicone oil is 30-100 ℃, and the liquid phase-change silicone oil can absorb heat of the super capacitor and can play a role in heat preservation at low temperature.
Further, the radiating fin is a phosphor copper sheet, has good heat conducting performance, is placed between the rows in the super capacitor module, extends out of the top cover of the inner box body and extends to the gas flow channel, and timely derives heat stored in the phase-change silicone oil and takes away the heat through cooling air flow flowing back and forth.
On the other hand, based on the above proposal, the invention also provides a super capacitor heat management method for the tram, which comprises the following steps:
s100, receiving vehicle running state information by a control circuit;
s200, according to the running state of the vehicle, the driver receives signals of the control circuit and then controls the rotary valve, so that the direction of the air flow is adjusted and changed in a matching manner, and the reciprocating flow of the cooling air flow is realized;
s300, timely guiding out the heat stored in the phase change matrix through the radiating fins and taking away the heat through the cooling airflow flowing back and forth.
Further, the method for controlling the reciprocating flow of the cooling air flow comprises the following steps:
s201, setting a reciprocating flow cycle period to be defined as T, wherein the reciprocating flow cycle period is defined as the time for the reciprocating flow to restore the initial flow direction; setting the starting time as t1; setting an initial flow direction to enable cooling air flow to flow through the cooling fins from right to left; the initial states of the rotary valve I and the rotary valve II are regulated to be a closed air flow outlet I and a closed air flow outlet II;
s202, according to the running state of the vehicle, the rotary valve I and the rotary valve II are adjusted to change the air flow direction under the reciprocating flow circulation period, so that the reciprocating flow of cooling air flow is realized.
Further, the operation method under the multiple stream circulation period comprises the following steps:
s2021: in the mode 1, when t is more than or equal to 0 and less than t1, the rotary valve I and the rotary valve II are not in an initial state, the vehicle is in a starting state, and the super capacitor module starts to work;
s2022: mode 2, whenWhen the rotary valve I rotates to close the through hole I and open the air flow outlet I, the rotary valve II does not act, and the cooling air flow at the cooling air flow inlet enters and flows through the cooling fins from right to left through the air flow channel;
s2023: mode 3, whenWhen the rotary valve I rotates to open the through hole I and close the air flow outlet I, the rotary valve II rotates to close the through hole II and open the air flow outlet II, and the cooling air flow at the cooling air flow inlet flows through the cooling fins from left to right;
s2024: cycling mode 2 and mode 3, the repetitive reciprocating flow is expected.
Further, an air inlet fan is arranged at the cooling air flow inlet and is used for generating cooling air or guiding air conditioning air in a carriage; an exhaust fan I and an exhaust fan II are respectively arranged at the air flow outlet I and the closed air flow outlet II;
fan operation steps under the cycle of the reciprocating flow:
when t is more than or equal to 0 and less than t1, the fans do not rotate;
when (when)When the air inlet fan and the air exhaust fan I rotate;
when (when)When the air inlet fan and the air exhaust fan II rotate。
The beneficial effect of adopting this technical scheme is:
according to the invention, the reciprocating flow circulation period is adopted to control the direction of the cooling air flowing into the outer box body, so that the highest temperature of the super capacitor can be effectively reduced, the super capacitor in each region can be effectively cooled, the problem that the super capacitor has temperature gradient due to unidirectional forced air cooling can be effectively reduced, and the temperature difference of each region in the super capacitor group is reduced; the temperature uniformity is effectively improved, the super capacitor keeps better consistency, the highest temperature of the super capacitor is reduced, and the service life is prolonged.
Meanwhile, liquid phase-change silicone oil is adopted in the invention, so that the heat of the super capacitor can be absorbed, the heat insulation effect can be realized at low temperature, and the silicone oil has volatility and is sealed in the inner box body; even if the phase change gasification is carried out and accumulated at the top of the box body, the phase change can be carried out again to the liquid state for recycling after the heat conducting fin is cooled; the temperature uniformity of the super capacitor bank can be improved, the aging speed of the super capacitor is reduced, and the economy of the whole vehicle energy storage system can be improved.
Drawings
FIG. 1 is a schematic diagram of a super capacitor thermal management system for a tram according to the present invention;
FIG. 2 is a schematic flow chart of a super capacitor thermal management method for a tramcar according to the present invention;
fig. 3 is a schematic structural diagram of a super capacitor thermal management system for a tram according to mode 2 of the present invention;
fig. 4 is a schematic structural diagram of a super capacitor thermal management system for a tram according to mode 3 of the present invention;
wherein, 1 is control circuit, 2 is the driver, 3 is the air inlet fan, 4 is the air exhaust fan I, 5 is the air exhaust fan II, 6 is rotary valve I, 7 is rotary valve II, 8 is the fin, 9 is super capacitor monomer, 10 is the phase transition matrix, 11 is the gas flow path, 12 is interior box, 13 is outer box.
Detailed Description
The present invention will be further described with reference to the accompanying drawings, in order to make the objects, technical solutions and advantages of the present invention more apparent.
In this embodiment, referring to fig. 1, the present invention provides a super-capacitor thermal management system for a tram, which includes a super-capacitor module formed by arranging a plurality of super-capacitor monomers 9 in an array, a rotary valve, a heat sink 8, a phase-change matrix 10, a control circuit 1, a driver 2, a gas flow channel 11, an inner box 12 and an outer box 13;
a gas flow channel 11 is arranged at the top of the outer box body 13, the gas flow channel 11 is communicated with a cooling air flow inlet and an air flow outlet, and a rotary valve is arranged on the gas flow channel 11; the control circuit 1 is connected with the driver 2, and the driver 2 controls the rotary valve after receiving the signal of the control circuit 1; the direction of the air flow is changed through the adjustment and matching of a rotary valve in the cooling air flow channel, so that the reciprocating flow of the cooling air flow is realized;
the inner box body 12 is arranged in the outer box body 13, and a super capacitor module formed by a plurality of super capacitor monomers 9 is soaked in the phase change matrix 10 and sealed in the inner box body 12; and cooling fins 8 are arranged between the rows in the super capacitor module and extend out of the top cover of the inner box 12, and the cooling fins 8 extend to the air flow channel 11.
As an optimization scheme of the above embodiment, the gas flow channel 11 spans across the top of the outer box 13, and two ends of the top of the outer box 13 are respectively provided with a through hole i and a through hole ii, and are communicated with the gas flow channel 11 through the through hole i and the through hole ii;
a cooling air flow inlet is formed in one end, close to the through hole I, of the air flow channel 11, and an air flow outlet I is formed in the top of the side wall of the outer box body 13, close to the cooling air flow inlet; a rotary valve I6 is arranged at the position of the through hole I and the air flow outlet I, the through hole I is opened or closed, and the air flow outlet I is closed or opened at the same time;
one end of the gas flow channel 11 near the through hole II is of a closed structure, the top of the side wall of the outer box body 13 near the through hole II is provided with a gas flow outlet II, the through hole II and the gas flow outlet II are provided with a rotary valve II 7, the through hole II is opened or closed, and the gas flow outlet II is closed or opened at the same time;
through the direction of control rotary valve I6 and rotary valve II 7, adjust opening or closure of through-hole I, through-hole II, air current export I and air current mouth II to adjust the cooperation and change the air current direction, realize the reciprocating flow of cooling air current.
Fans are arranged at the cooling air flow inlet, the air flow outlet I and the air flow outlet II, and are connected to the control circuit 1 through the driver 2; the cooling air in the box body is guided into the air by the pressure difference generated by the rotation of the fan.
The rotary valve comprises a rotating shaft, a plug body and a rotary driving piece, wherein the plug body is arranged on the rotating shaft and axially rotates along the rotating shaft, the rotary driving piece drives the plug body to move, and the direction of cooling flow is controlled by rotating the plug body around the central rotating shaft of the valve body.
As an optimization scheme of the embodiment, the phase-change matrix 10 is liquid phase-change silicone oil, the phase-change temperature of the phase-change silicone oil is 30-100 ℃, and the liquid phase-change silicone oil can absorb heat of the super capacitor and can play a role in heat preservation at low temperature.
The radiating fin 8 is a phosphor copper sheet, has good heat conducting performance, is placed between the rows in the super capacitor module, extends out of the top cover of the inner box 12 and extends outwards to the gas flow channel 11, and timely derives heat stored in the phase-change silicone oil and takes away the heat through the cooling air flow flowing back and forth.
In order to cooperate with the implementation of the method of the invention, based on the same inventive concept, as shown in fig. 2, the invention also provides a super capacitor heat management method for a tram, comprising the following steps:
s100, receiving vehicle running state information by the control circuit 1;
s200, according to the running state of the vehicle, the driver 2 receives the signal of the control circuit 1 and then controls the rotary valve, so that the direction of the air flow is adjusted and changed in a matching way, and the reciprocating flow of the cooling air flow is realized;
s300, timely guiding out the heat stored in the phase change matrix 10 through the cooling fins 8 and taking the heat away through the cooling airflow flowing back and forth.
As an optimization scheme of the above embodiment, the method for controlling the reciprocating flow of the cooling air flow includes the steps of:
s201, setting a reciprocating flow cycle period to be defined as T, wherein the reciprocating flow cycle period is defined as the time for the reciprocating flow to restore the initial flow direction; setting the starting time as t1; setting an initial flow direction such that the cooling air flows from right to left through the fins 8; the initial states of the rotary valve I6 and the rotary valve II 7 are regulated to be a closed air flow outlet I and a closed air flow outlet II;
s202, according to the running state of the vehicle, the rotary valve I6 and the rotary valve II 7 are adjusted to change the air flow direction under the reciprocating flow circulation period, so that the reciprocating flow of cooling air flow is realized.
The operation method under the multi-stream circulation period comprises the following steps:
s2021: in the mode 1, as shown in the figure 1, when t is more than or equal to 0 and less than t1, the rotary valve I6 and the rotary valve II 7 do not act and are in an initial state, the vehicle is in a starting state, and the super capacitor module starts to work;
s2022: mode 2, as shown in FIG. 3, whenWhen the rotary valve I6 rotates to close the through hole I and open the air flow outlet I, the rotary valve II 7 does not act, and the cooling air flow at the cooling air flow inlet enters the cooling air flow through the air flow channel 11 from right to left and flows through the cooling fins 8;
s2023: mode 3, as shown in FIG. 4, whenWhen the cooling air flow cooling device is in use, the rotary valve I6 rotates to open the through hole I and close the air flow outlet I, the rotary valve II 7 rotates to close the through hole II and open the air flow outlet II, and the cooling air flow flows through the cooling fins 8 from left to right;
s2024: cycling mode 2 and mode 3, the repetitive reciprocating flow is expected.
As an optimization scheme of the embodiment, an air inlet fan 3 is arranged at the cooling air flow inlet and is used for generating cooling air or guiding air-conditioning air in a carriage; an exhaust fan I4 and an exhaust fan II 5 are respectively arranged at the air flow outlet I and the closed air flow outlet II;
fan operation steps under the cycle of the reciprocating flow:
when t is more than or equal to 0 and less than t1, the fans do not rotate;
when (when)When the air intake fan 3 and the air exhaust fan I4 rotate;
when (when)During this time, the air intake fan 3 and the air exhaust fan ii 5 rotate.
The foregoing has shown and described the basic principles and main features of the present invention and the advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (9)
1. The super-capacitor heat management method for the tram is characterized by comprising a super-capacitor module, a rotary valve, radiating fins (8), a phase-change matrix (10), a control circuit (1), a driver (2), a gas runner (11), an inner box body (12) and an outer box body (13), wherein the super-capacitor module is formed by arranging a plurality of super-capacitor monomers (9) in an array mode; a gas flow passage (11) is arranged at the top of the outer box body (13), the gas flow passage (11) is communicated with a cooling air flow inlet and a cooling air flow outlet, and a rotary valve is arranged on the gas flow passage (11); the control circuit (1) is connected with the driver (2), and the driver (2) controls the rotary valve after receiving the signal of the control circuit (1); the direction of the air flow is changed through the adjustment and matching of a rotary valve in the cooling air flow channel, so that the reciprocating flow of the cooling air flow is realized; the inner box body (12) is arranged in the outer box body (13), and a super capacitor module formed by a plurality of super capacitor monomers (9) is soaked in the phase change matrix (10) and sealed in the inner box body (12); a cooling fin (8) is arranged between the rows in the super capacitor module and extends out of the top cover of the inner box body (12), and the cooling fin (8) extends to the gas flow channel (11);
the method comprises the following steps:
s100, receiving vehicle running state information by a control circuit (1);
s200, according to the running state of the vehicle, the driver (2) receives the signal of the control circuit (1) and then controls the rotary valve, so that the direction of the air flow is adjusted and changed in a matching way, and the reciprocating flow of the cooling air flow is realized;
s300, timely guiding out the heat stored in the phase change matrix (10) through the radiating fins (8) and taking the heat away through the cooling airflow flowing back and forth.
2. The super-capacitor heat management method for the tram according to claim 1, wherein the gas flow channel (11) spans the top of the outer box body (13), a through hole I and a through hole II are respectively arranged at two ends of the top of the outer box body (13), and the gas flow channel (11) is communicated through the through hole I and the through hole II;
a cooling air flow inlet is formed in one end, close to the through hole I, of the air flow channel (11), and an air flow outlet I is formed in the top of the side wall of the outer box body (13) close to the cooling air flow inlet; a rotary valve I (6) is arranged at the position of the through hole I and the air flow outlet I, the through hole I is opened or closed, and the air flow outlet I is closed or opened at the same time;
one end of the gas flow channel (11) close to the through hole II is of a closed structure, the top of the side wall of the outer box body (13) close to the through hole II is provided with an air flow outlet II, the through hole II and the air flow outlet II are provided with a rotary valve II (7), the through hole II is opened or closed, and the air flow outlet II is closed or opened at the same time;
the direction of the rotary valve I (6) and the direction of the rotary valve II (7) are controlled, and the opening or closing of the through hole I, the through hole II, the air flow outlet I and the air flow outlet II are regulated, so that the direction of the air flow is regulated and changed in a matching way, and the reciprocating flow of cooling air flow is realized.
3. Super-capacitor thermal management method for tram according to claim 2, characterized in that fans are provided at the cooling air flow inlet, air flow outlet i and air flow outlet ii, which fans are connected to the control circuit (1) via a drive (2); the cooling air in the box body is guided into the air by the pressure difference generated by the rotation of the fan.
4. A method of super-capacitor thermal management for a tram as claimed in claim 3 wherein the rotary valve comprises a shaft, a plug body and a rotary driving member, the plug body is disposed on the shaft and rotates axially along the shaft, the rotary driving member drives the plug body to move, and the direction of the cooling flow is controlled by rotating the plug body around the central shaft of the valve body.
5. The super-capacitor thermal management method for the tram according to claim 1, wherein the phase-change matrix (10) is liquid phase-change silicone oil, and the phase-change temperature of the phase-change silicone oil is 30-100 ℃.
6. The super-capacitor heat management method for the tram according to claim 5, wherein the heat radiating fins (8) are made of phosphor copper sheets, are arranged between the rows of the super-capacitor module, extend out of the top cover of the inner box body (12) and extend to the gas flow channel (11), timely conduct out heat stored in the phase-change silicone oil and take away the heat through the cooling air flow flowing back and forth.
7. The super capacitor heat management method for a tram as claimed in claim 1, wherein the method for controlling the reciprocating flow of the cooling air flow comprises the steps of:
s201, setting a reciprocating flow cycle period to be defined as T, wherein the reciprocating flow cycle period is defined as the time for the reciprocating flow to restore the initial flow direction; setting the starting time as t1; setting an initial flow direction such that the cooling air flows from right to left through the fins (8); the initial states of the rotary valve I (6) and the rotary valve II (7) are regulated to be a closed air flow outlet I and a closed air flow outlet II;
s202, according to the running state of the vehicle, the rotary valve I (6) and the rotary valve II (7) are adjusted to change the air flow direction under the reciprocating flow circulation period, so that the reciprocating flow of cooling air flow is realized.
8. The super capacitor heat management method for a tram as claimed in claim 7, wherein the operation method under the cycle of the multiple current comprises the steps of:
s2021: in the mode 1, when t is more than or equal to 0 and less than t1, the rotary valve I (6) and the rotary valve II (7) do not act and are in an initial state, the vehicle is in a starting state, and the super capacitor module starts to work;
s2022: mode 2, whenWhen the rotary valve I (6) is rotated to close the through hole I and open the air flow outlet I, the rotary valve II (7) is not operated, and the cooling air flow at the cooling air flow inlet enters the cooling air flow through the air flow channel (11) from right to left and flows through the cooling fins (8);
s2023: mode 3, whenWhen the cooling air flow cooling device is used, the rotary valve I (6) rotates to open the through hole I and close the air flow outlet I, the rotary valve II (7) rotates to close the through hole II and open the air flow outlet II, and cooling air flows through the cooling fins (8) from left to right;
s2024: cycling mode 2 and mode 3, the repetitive reciprocating flow is expected.
9. The super capacitor heat management method for a tram according to claim 8, wherein an air intake fan (3) is provided at the cooling air flow inlet for generating cooling air or introducing air-conditioning air in a vehicle cabin; an exhaust fan I (4) and an exhaust fan II (5) are respectively arranged at the air flow outlet I and the closed air flow outlet II;
fan operation steps under the cycle of the reciprocating flow:
when t is more than or equal to 0 and less than t1, the fans do not rotate;
when (when)When the air inlet fan (3) and the air exhaust fan I (4) rotate;
when (when)During the time, the air inlet fan (3) and the air exhaust fan II (5) rotate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910013802.9A CN109494081B (en) | 2019-01-08 | 2019-01-08 | Super capacitor thermal management system and method for tramcar |
Applications Claiming Priority (1)
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