CN209904580U - Thermal management system of high-power fuel cell commercial vehicle - Google Patents
Thermal management system of high-power fuel cell commercial vehicle Download PDFInfo
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- CN209904580U CN209904580U CN201920764322.1U CN201920764322U CN209904580U CN 209904580 U CN209904580 U CN 209904580U CN 201920764322 U CN201920764322 U CN 201920764322U CN 209904580 U CN209904580 U CN 209904580U
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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
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/40—Application of hydrogen technology to transportation, e.g. using fuel cells
Abstract
The utility model discloses a thermal management system of a high-power fuel cell commercial vehicle, which comprises a fuel cell module, wherein the water outlet of the fuel cell module is connected with the water outlet of an electric control reversing valve through a water outlet temperature sensor; a first outlet of the electric control reversing valve is connected with the heating module, and a second outlet of the electric control reversing valve is connected with the radiator; the heating module and the water outlet connected with the radiator are both connected to the water inlet of the medium-high pressure electronic water pump; the outlet of the medium-high pressure electronic water pump is connected with the water inlet of the fuel cell module through a water inlet temperature sensor. The utility model adopts the technical route that the radiator is matched with a large-diameter mechanical fan to add a medium-high voltage speed regulation driving motor and a small-circulation series heating module through the large circulation of the cooling liquid; the fuel cell is always in the optimal working temperature range under the control of the controller by utilizing a middle-high pressure speed regulation middle-high pressure electronic water pump, an electric control reversing valve, a power converter, a fuel cell water inlet and outlet temperature sensor and the like; greatly improves the heat dissipation capacity of the whole vehicle and meets the market demand.
Description
[ technical field ] A method for producing a semiconductor device
The utility model belongs to the technical field of fuel cell cooling system, a thermal management system of high-power fuel cell commercial car is related to.
[ background of the invention ]
The fuel cell has the advantages of zero emission and zero pollution, and various host plants successively develop fuel cell commercial vehicles and put forward higher requirements on the heat dissipation capacity, the control precision and the like of a cooling system. At present, a single radiator is adopted to match with a plurality of modular design schemes of low-voltage electronic fans. Because the low-voltage electronic fan has the characteristics of small diameter, low static pressure and small air volume, the radiator is usually large, and the radiating power is generally small; the flow rate of the matched low-pressure, medium-pressure and high-pressure electronic water pump is also lower; the exertion of the heat dissipation power of the cooling module is influenced.
With the increasing demand of the market for high-power fuel cells, the feasibility of matching a plurality of cooling modules is lower and lower due to the limitation of the layout of the whole vehicle, and the existing technical route of the radiator and the low-voltage electronic fan cannot meet the higher and higher heat dissipation demand.
[ Utility model ] content
An object of the utility model is to overcome above-mentioned prior art's shortcoming, provide a thermal management system of high-power fuel cell commercial car.
In order to achieve the above purpose, the utility model adopts the following technical scheme to realize:
a thermal management system for a high power fuel cell commercial vehicle, comprising:
the water outlet of the fuel cell module is connected with the water inlet of the electric control reversing valve through a water outlet temperature sensor;
a first outlet of the electric control reversing valve is connected with the heating module, and a second outlet of the electric control reversing valve is connected with the radiator;
the water outlets of the heating module and the radiator are connected to the water inlet of the medium-high voltage electronic water pump;
the outlet of the medium-high pressure electronic water pump is connected with the water inlet of the fuel cell module through a water inlet temperature sensor;
the controller is respectively and electrically connected with the electric control reversing valve, the heating module and the control end of the medium-high pressure electronic water pump; the water outlet temperature sensor and the water inlet temperature sensor are both connected with the data acquisition end of the controller.
The utility model discloses further improvement lies in:
the degassing port of the fuel cell module and the degassing port of the radiator are both connected to the expansion tank, and the water return port of the expansion tank is connected with the water inlet of the medium-high pressure electronic water pump.
And the radiator is also provided with a large-diameter mechanical fan, the large-diameter mechanical fan is driven by a medium-high pressure fan driving motor, and the control end of the medium-high pressure fan driving motor is electrically connected with the controller.
The controller is connected with the control end of the medium-high voltage fan driving motor through a first power supply converter.
The controller is connected with the control end of the medium-high voltage electronic water pump through the second power supply converter.
Compared with the prior art, the utility model discloses following beneficial effect has:
the radiator of the utility model adopts the radiator of the prior traditional power commercial vehicle, thereby reducing the development period and the cost; the fan adopts a corresponding large-diameter mechanical fan, and has high static pressure and large air volume; the fan is driven by a medium-high voltage speed regulating motor, and compared with a plurality of low-voltage electronic fans with the same power, the air quantity of the fans is obviously improved; the water pump adopts a medium-high voltage electronic speed-regulating water pump, and the flow is greatly improved; meanwhile, a power supply converter which is matched with a medium-high voltage fan driving motor and a medium-high voltage electronic water pump is additionally arranged; the water inlet and outlet of the fuel cell are respectively provided with a temperature sensor; the cooling liquid circulates through the radiator greatly, and the small circulation is connected with the heating module in series; the controller reads the temperature value of the sensor, and the fuel cell is always in the optimal working temperature range by adjusting the working state of the heating module, the direction of the electric control reversing valve, the rotating speed of the driving motor, the rotating speed of the medium-high voltage electronic water pump and the like; the system remarkably improves the heat dissipation capacity of the whole vehicle, is convenient for the arrangement of the whole vehicle, and meets the requirement of the market on a high-power fuel cell commercial vehicle.
[ description of the drawings ]
Fig. 1 is a schematic diagram of a thermal management system of a high-power fuel cell commercial vehicle according to the present invention.
Wherein: 1-a fuel cell module; 2-a radiator; 3-large diameter mechanical fan; 4-driving motor of middle and high voltage fan; 5-a first power converter; 6-expansion tank; 7-an electrically controlled directional valve; 8-a heating module; 9-a controller; 10-a medium-high pressure electronic water pump; 11-a second power converter; 12-fuel cell outlet water temperature sensor; 13-fuel cell inlet water temperature sensor.
[ detailed description ] embodiments
In order to make the technical solution of the present invention better understood, the following figures in the embodiments of the present invention are combined to clearly and completely describe the technical solution in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments, and do not limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present disclosure. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.
Various structural schematics according to the disclosed embodiments of the invention are shown in the drawings. The figures are not drawn to scale, wherein certain details are exaggerated and possibly omitted for clarity of presentation. The shapes of various regions, layers and their relative sizes and positional relationships shown in the drawings are merely exemplary, and deviations may occur in practice due to manufacturing tolerances or technical limitations, and a person skilled in the art may additionally design regions/layers having different shapes, sizes, relative positions, according to actual needs.
In the context of the present disclosure, when a layer/element is referred to as being "on" another layer/element, it can be directly on the other layer/element or intervening layers/elements may be present. In addition, if a layer/element is "on" another layer/element in one orientation, then that layer/element may be "under" the other layer/element when the orientation is reversed.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The present invention will be described in further detail with reference to the accompanying drawings:
referring to fig. 1, the thick solid lines represent the coolant main line connections, the thin solid lines represent the degassing line connections, the dashed lines represent the electrical line connections, and the arrows represent the water flow direction. The utility model discloses thermal management system of high-power fuel cell commercial car, including fuel cell module 1, radiator 2, major diameter mechanical fan 3, well high-pressure fan driving motor 4, first power converter 5, expansion tank 6, automatically controlled switching-over valve 7, heating module 8, controller 9, well high-pressure electronic water pump 10, second power converter 11, fuel cell play water temperature sensor 12, fuel cell temperature sensor 13 that intakes.
The water outlet of the fuel cell module 1 is connected with the water inlet of the electric control reversing valve 7 through the water outlet temperature sensor 12; the degassing port of the fuel cell module 1 and the degassing port of the radiator 2 are both connected to the expansion tank 6, and the water return port of the expansion tank 6 is connected with the water inlet of the medium-high pressure electronic water pump 10. A first outlet of the electric control reversing valve 7 is connected with the heating module 8, and a second outlet is connected with the radiator 2; the water outlets of the heating module 8 and the radiator 2 are connected to the water inlet of the medium-high pressure electronic water pump 10; the radiator 2 is also provided with a large-diameter mechanical fan 3, the large-diameter mechanical fan 3 is driven by a medium-high pressure fan driving motor 4, and the control end of the medium-high pressure fan driving motor 4 is electrically connected with a controller 9. The outlet of the medium-high pressure electronic water pump 10 is connected with the water inlet of the fuel cell module 1 through a water inlet temperature sensor 13; the controller 9, the controller 9 is electrically connected with the control ends of the electric control reversing valve 7, the heating module 8 and the middle-high pressure electronic water pump 10 respectively; the water outlet temperature sensor 12 and the water inlet temperature sensor 13 are both connected with the data acquisition end of the controller 9. The controller 9 is connected to the control terminal of the medium-high voltage fan drive motor 4 through the first power converter 5. The controller 9 is connected with the control end of the medium-high voltage electronic water pump 10 through a second power converter 11.
And (3) small circulation of cooling liquid: the cooling liquid flows from the water outlet of the fuel cell module 1, passes through the water outlet temperature sensor 12, the electric control reversing valve 7, the heating module 8, the medium-high pressure electronic water pump 10 and the water inlet temperature sensor 13, and then returns to the water inlet of the fuel cell module 1.
Cooling liquid large circulation: the cooling liquid flows from the water outlet of the fuel cell module 1, passes through the water outlet temperature sensor 12, the electric control reversing valve 7, the radiator 2, the medium-high pressure electronic water pump 10 and the water inlet temperature sensor 13, and then returns to the water inlet of the fuel cell module 1.
Degassing and circulating the cooling liquid: one path of cooling liquid mixed with air reaches a degassing port of the expansion tank 6 from a degassing port of the fuel cell module 1, and the other path of cooling liquid reaches a degassing port of the expansion tank 6 from a degassing port of a water feeding chamber of the radiator 2; and after degassing by the expansion tank, the water reaches the water inlet of the medium-high pressure electronic water pump 10 through the water return port of the expansion tank 6, and then the water is converged into the large circulation or the small circulation of the cooling liquid.
The heating module 8 is connected with a low-voltage line of the whole vehicle and is controlled by the controller 9 according to TiDetermining whether to work, TiIs the water inlet temperature value of the fuel cell, and the unit is;
the electric control reversing valve 7 is connected with a low-voltage line of the whole vehicle and is controlled by the controller 9 according to ToDetermining the major or minor circulation of the cooling liquid, ToIs the water outlet temperature value of the fuel cell in unit;
the large-diameter mechanical fan 3 is connected with the medium and high-pressure fan driving motor 4 through a flange; the fan can be a clutch fan (such as an electric control silicone oil fan, an electromagnetic clutch fan, a common silicone oil fan and the like);
the middle-high voltage fan driving motor 4 is connected with a high-voltage line of the whole vehicle through a first power converter 5 and obtains adaptive working voltage; the rotating speed is adjustable and is controlled by a controller 9 according to TiAnd ToDetermining; the driving motor can be a medium-high voltage constant speed motor, and can be connected with a speed reducer in series; in addition, the driving motor may be a driving device such as a hydraulic motor; the driving motor needs to be matched with a power converter to obtain proper working voltage;
the medium-high voltage electronic water pump 10 is connected with a high-voltage line of the whole vehicle through a second power converter 11 and obtains adaptive working voltage; it is in working state in large and small cycles, has adjustable rotation speed, and is controlled by the controller 9 according to TiAnd ToDetermining; the water pump needs to be matched with a power converter to obtain proper working voltage;
the controller 9 is connected with a low-voltage line of the whole vehicle, receives and controls the working states of the medium-high pressure fan driving motor 4, the electric control reversing valve 7, the heating module 8 and the medium-high pressure electronic water pump 10 and receives feedback signals of the medium-high pressure fan driving motor, the electric control reversing valve 7, the heating module 8 and the medium-high pressure electronic water pump according to signals of the fuel cell water outlet temperature sensor 12 and the fuel cell water inlet temperature sensor 13.
The electric control reversing valve can be other devices for controlling the direction; the controller controls the working state of the heating module, the direction of the electric control reversing valve, the rotating speed of the driving motor, the rotating speed of the medium-high pressure electronic water pump and the like according to the temperature value of the water inlet and outlet temperature sensor. The fuel cell module internally includes a fuel cell system, a compressed air cooling device, and the like.
The utility model also discloses a thermal management control method of high-power fuel cell commercial car, including following step:
(1) when in useTi≤T1When, T1Is the temperature threshold value of the heating module 8 which starts to work, unit ℃;
the controller 9 controls the electric control reversing valve 7 to enable the cooling liquid to pass through the electric control reversing valve 7, the fuel cell water outlet temperature sensor 12 is communicated with the heating module 8, the cooling liquid circulates in a small circle, and the heating module 8 starts to work;
(2) when T isi＞T1And T iso≤T2When, T2Temperature threshold in units of large cycle start;
the controller 9 controls the electric control reversing valve 7 to enable the cooling liquid to pass through the electric control reversing valve 7, the fuel cell water outlet temperature sensor 12 is communicated with the heating module 8, the cooling liquid circulates in a small circle, and the heating module 8 stops working; the controller 9 adjusts the rotating speed of the medium-high voltage electronic water pump 10 in a PID control mode, so that the fuel cell module 1 is always in the optimal working temperature range;
(3) when T iso＞T2Time of flight
The controller 9 controls the electric control reversing valve 7 to enable cooling liquid to pass through the electric control reversing valve 7, the fuel cell water outlet temperature sensor 12 is communicated with the radiator 2, the cooling liquid circulates greatly, the heating module 8 stops working, and the controller 9 adjusts the rotating speed of the medium-high pressure fan driving motor 4 and the rotating speed of the medium-high pressure electronic water pump 10 in a PID control mode to enable T to be achievedi＞T1The fuel cell module 1 is always in the optimum operating temperature range.
The above contents are only for explaining the technical idea of the present invention, and the protection scope of the present invention cannot be limited thereby, and any modification made on the basis of the technical solution according to the technical idea of the present invention all fall within the protection scope of the claims of the present invention.
Claims (5)
1. A thermal management system for a high power fuel cell commercial vehicle, comprising:
the water outlet of the fuel cell module (1) is connected with the water inlet of the electric control reversing valve (7) through the water outlet temperature sensor (12);
a first outlet of the electric control reversing valve (7) is connected with the heating module (8), and a second outlet is connected with the radiator (2);
the water outlets of the heating module (8) and the radiator (2) are connected to the water inlet of a medium-high pressure electronic water pump (10);
the outlet of the medium-high pressure electronic water pump (10) is connected with the water inlet of the fuel cell module (1) through a water inlet temperature sensor (13);
the controller (9), the controller (9) is electrically connected with the control ends of the electric control reversing valve (7), the heating module (8) and the medium-high pressure electronic water pump (10) respectively; the water outlet temperature sensor (12) and the water inlet temperature sensor (13) are both connected with the data acquisition end of the controller (9).
2. The thermal management system of the high-power fuel cell commercial vehicle as claimed in claim 1, characterized in that the degassing port of the fuel cell module (1) and the degassing port of the radiator (2) are both connected to an expansion tank (6), and the water return port of the expansion tank (6) is connected with the water inlet of the medium-high pressure electronic water pump (10).
3. The thermal management system of a high-power fuel cell commercial vehicle according to claim 1, characterized in that a large-diameter mechanical fan (3) is further arranged on the heat sink (2), the large-diameter mechanical fan (3) is driven by a medium-high voltage fan driving motor (4), and a control end of the medium-high voltage fan driving motor (4) is electrically connected with the controller (9).
4. The thermal management system for high-power fuel cell commercial vehicles according to claim 1, characterized in that the controller (9) is connected to the control terminal of the medium-high voltage fan drive motor (4) via the first power converter (5).
5. The thermal management system for high-power fuel cell commercial vehicles according to claim 1, characterized in that the controller (9) is connected with the control end of the medium-high voltage electronic water pump (10) through a second power converter (11).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920764322.1U CN209904580U (en) | 2019-05-24 | 2019-05-24 | Thermal management system of high-power fuel cell commercial vehicle |
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| CN201920764322.1U CN209904580U (en) | 2019-05-24 | 2019-05-24 | Thermal management system of high-power fuel cell commercial vehicle |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110116654A (en) * | 2019-05-24 | 2019-08-13 | 陕西重型汽车有限公司 | A kind of heat management system and heat control method of high power fuel cell commercial vehicle |
| CN114335629A (en) * | 2021-12-29 | 2022-04-12 | 山东国创燃料电池技术创新中心有限公司 | Fuel cell cogeneration control method and system |
-
2019
- 2019-05-24 CN CN201920764322.1U patent/CN209904580U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110116654A (en) * | 2019-05-24 | 2019-08-13 | 陕西重型汽车有限公司 | A kind of heat management system and heat control method of high power fuel cell commercial vehicle |
| CN114335629A (en) * | 2021-12-29 | 2022-04-12 | 山东国创燃料电池技术创新中心有限公司 | Fuel cell cogeneration control method and system |
| CN114335629B (en) * | 2021-12-29 | 2024-04-23 | 山东国创燃料电池技术创新中心有限公司 | Combined heat and power control method and system for fuel cell |
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