CN217134423U - Fuel cell system capable of preventing damage of cold frozen ice - Google Patents
Fuel cell system capable of preventing damage of cold frozen ice Download PDFInfo
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- CN217134423U CN217134423U CN202220733553.8U CN202220733553U CN217134423U CN 217134423 U CN217134423 U CN 217134423U CN 202220733553 U CN202220733553 U CN 202220733553U CN 217134423 U CN217134423 U CN 217134423U
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- fuel cell
- circuit module
- pipe
- heat exchange
- cell system
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Abstract
The utility model provides a fuel cell system of anti cold freezing ice damage, including whole car, and with power battery and two-way DC-DC circuit module that the output of whole car is connected, the output of two-way DC-DC circuit module is connected with the DC-DC circuit module that steps up, the output of DC-DC circuit module that steps up is connected with pile and fuel cell annex system. The utility model discloses can be when the complete car scram, through power battery as the power, supply power for the system, guarantee that the system normally sweeps, prevent to freeze, damage the pile.
Description
Technical Field
The utility model relates to a fuel cell's technical field, concretely relates to prevent cold fuel cell system that freezes ice damage.
Background
A fuel cell is a chemical device that directly converts chemical energy of fuel into electric energy, and is also called an electrochemical generator.
According to the antifreeze apparatus and method of the fuel cell system provided in patent document CN200610167472.1, the fuel cell system includes a water tank, a water outlet pipe, a water return pipe, a water pump, an electric heater, a temperature detector, a controller, and a power supply device; the temperature detector is configured to detect the ambient temperature outside the fuel cell system; the controller is configured to detect an operating state of the fuel cell and start or stop the power supply device according to the detected operating state of the fuel cell and the external environment temperature detected by the temperature detector; the power supply device is configured to supply power to the water pump and the electric heater under the control of the controller. The utility model discloses a convey the water in the water tank inside fuel cell after the electric heater heating to shut down and external environment temperature still can keep the inside temperature of fuel cell normal under the condition low excessively at fuel cell, can not freeze, guaranteed the stability of engine.
The anti-freezing device for the fuel cell is characterized in that water in the water tank is heated by the electric heater and then is conveyed to the inside of the fuel cell, so that the inside of the fuel cell is kept from freezing, but after the whole vehicle is in fault and is suddenly stopped, the electric pile cannot be swept, water is generated in the electric pile, the condition of freezing ice occurs, and the electric pile is easy to damage.
SUMMERY OF THE UTILITY MODEL
The utility model mainly provides a fuel cell system of anti cold freezing ice damage is used for solving the technical problem who proposes among the above-mentioned background art.
The utility model provides a technical scheme that above-mentioned technical problem adopted does:
the fuel cell system comprises a whole vehicle, a power cell and a bidirectional DC-DC circuit module, wherein the power cell and the bidirectional DC-DC circuit module are connected with the output end of the whole vehicle, the output end of the bidirectional DC-DC circuit module is connected with a boosting DC-DC circuit module, and the output end of the boosting DC-DC circuit module is connected with a galvanic pile and a fuel cell accessory system.
Further, the boost DC-DC circuit module includes an air compressor controller ACP connected to an output of the bi-directional DC-DC circuit module, a high voltage power distribution unit PCU, and a buck DCL circuit module, outputs of the high voltage power distribution unit PCU and the buck DCL circuit module being connected to the fuel cell accessory system.
Further, one side of galvanic pile is equipped with oxygen pipeline and vapor pipeline, the outside cover of galvanic pile is equipped with the heat transfer cover, the heat transfer cover is connected with heat transfer mechanism, heat transfer mechanism's input with vapor pipeline's output is connected the utility model discloses in, store air conditioning and the steam that is used for the heat transfer through the heat transfer cover to cool down and heat up the shell of galvanic pile through this air conditioning and steam.
Further, the inside of heat transfer cover be equipped with a plurality ofly install in the first heat transfer fin of pile surface to and locate adjacent two second heat transfer fin between the first heat transfer fin, second heat transfer fin install in the surface of pile the utility model discloses in, effectively contact through air conditioning and steam in first heat transfer fin and the second heat transfer fin guide pile and the heat transfer cover.
Furthermore, an air inlet pipe is arranged at the bottom of one end of the heat exchange sleeve in a penetrating mode, and an air outlet pipe is arranged at the top of the other end of the heat exchange sleeve in a penetrating mode.
Furthermore, the heat exchange mechanism comprises a heat exchange box connected with the air outlet end of the water vapor pipeline through a pipeline, and a fan connected with the air outlet end of the heat exchange box through a pipeline, and the air outlet end of the fan is connected with the air inlet end of the air inlet pipe extending to the outside through a pipeline.
Further, still including wearing to locate first capillary on the first heat transfer fin casing wears to locate second capillary on the second heat transfer fin casing, adjacent two be connected through first gas-supply pipe between the first capillary, adjacent two be connected through the second gas-supply pipe between the second capillary the utility model discloses in, cold water and hot water are through a plurality of second capillaries and second gas-supply pipe to from the direction of giving vent to anger of heat transfer cover, the inside of heat transfer cover is carried out the heat transfer to the direction of admitting air of heat transfer cover, with the homogeneity that improves the inside temperature variation of heat transfer cover.
Further, heat transfer mechanism is still including installing in cold dish and the first hot dish of heat transfer incasement portion bottom, and locating second hot dish between cold dish and the first hot dish, be equipped with the semiconductor refrigerator on the casing of first hot dish, be equipped with the heating copper pipe on the casing of first hot dish and second hot dish the utility model discloses in, because the crisscross setting of first hot dish and second hot dish for the air advances along the S-shaped to make air and first hot dish and second hot dish fully contact.
Furthermore, one side of the heat exchange box, which is far away from the steam pipeline, is connected with a water pump through a pipeline, the output end of the water pump is connected with a first water outlet pipe, the output end of the first water outlet pipe is connected with a three-way pipe, the output end of the three-way pipe is connected with a second water outlet pipe, and the two second water outlet pipes are respectively connected with the first capillary pipe and the second capillary pipe.
Furthermore, the bottom of one side of the cold plate is provided with a water collecting tank, and the water collecting tank is arranged on the surface of the inner wall of the heat exchange box.
Compared with the prior art, the beneficial effects of the utility model are that:
one of the two, the utility model discloses can be when the complete car scram, supply power for the system through power battery as the power, guarantee that the system normally sweeps, prevent to freeze, damage the pile.
Secondly, the utility model provides a two-way DC-DC circuit module and power battery can regard as the inside power of fuel cell system, supply the system to start to do not rely on whole car.
Thirdly, the utility model discloses can provide independent high-low voltage power supply and give fuel cell, start and work, improve the reliability of system.
The present invention will be explained in detail with reference to the drawings and specific embodiments.
Drawings
FIG. 1 is a schematic view of the present invention;
FIG. 2 is a first schematic structural diagram of the electric pile of the present invention;
FIG. 3 is a second schematic structural view of the electric pile of the present invention;
FIG. 4 is a third schematic structural view of the electric pile of the present invention;
fig. 5 is a top view of the present invention;
FIG. 6 is a cross-sectional view taken along line A-A of FIG. 5;
fig. 7 is a schematic structural view of the first capillary and the second capillary of the present invention;
fig. 8 is a right side view of the present invention.
In the figure: 10. completing the vehicle; 20. a power battery; 30. a bidirectional DC-DC circuit module; 40. a galvanic pile; 41. an oxygen pipeline; 42. a water vapor conduit; 43. a heat exchange sleeve; 431. a first heat exchange fin; 432. a second heat exchange fin; 433. an air inlet pipe; 434. an air outlet pipe; 435. a first capillary tube; 436. a second capillary tube; 437. a first gas delivery pipe; 438. a second gas delivery pipe; 44. a heat exchange mechanism; 441. a heat exchange box; 4411. a first water outlet pipe; 4412. a three-way pipe; 4413. a second water outlet pipe; 442. a water pump; 443. a fan; 444. cooling the disc; 445. a first hot plate; 446. a second hot plate; 447. a semiconductor refrigerator; 448. heating the copper pipe; 449. a water collection tank; 50. a boost DC-DC circuit module; 60. a fuel cell accessory system.
Detailed Description
In order to facilitate understanding of the present invention, the present invention will be described more fully with reference to the accompanying drawings, in which several embodiments of the present invention are shown, but the present invention can be implemented in different forms, and is not limited to the embodiments described in the text, but rather, these embodiments are provided to make the disclosure of the present invention more thorough and comprehensive.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may be present, and when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present, as the terms "vertical", "horizontal", "left", "right" and the like are used herein for descriptive purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, and the use of the term knowledge in the specification of the present invention is for the purpose of describing particular embodiments and is not intended to limit the present invention, and the term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
In an embodiment, referring to fig. 1 to 8, a fuel cell system for preventing damage of cold freezing ice includes a whole vehicle 10, and a power battery 20 and a bidirectional DC-DC circuit module 30 connected to an output end of the whole vehicle 10, an output end of the bidirectional DC-DC circuit module 30 is connected to a boost DC-DC circuit module 50, and an output end of the boost DC-DC circuit module 50 is connected to a stack 40 and a fuel cell accessory system 60;
it should be noted that, in the present embodiment, the step-up DC-DC circuit module 50 includes an air compressor controller ACP51, a high voltage power distribution unit PCU52, and a step-down DCL circuit module 53 connected to the output of the bidirectional DC-DC circuit module 30, and the outputs of the high voltage power distribution unit PCU52 and the step-down DCL circuit module 53 are connected to the fuel cell accessory system 60;
further, the fuel cell accessory system 60 is a fuel cell BOP accessory.
Specifically, please refer to fig. 2, 3 and 4 again, an oxygen pipeline 41 and a water vapor pipeline 42 are arranged on one side of the electric pile 40, a heat exchange sleeve 43 is sleeved outside the electric pile 40, the heat exchange sleeve 43 is connected with a heat exchange mechanism 44, and an input end of the heat exchange mechanism 44 is connected with an output end of the water vapor pipeline 42;
a plurality of first heat exchange fins 431 arranged on the outer surface of the electric pile 40 and a plurality of second heat exchange fins 432 arranged between two adjacent first heat exchange fins 431 are arranged in the heat exchange sleeve 43, and the second heat exchange fins 432 are arranged on the outer surface of the electric pile 40;
in this embodiment, the water vapor output from the water vapor pipeline 42 is input into the heat exchanging mechanism 44, and cold air and hot air are produced by the heat exchanging mechanism 44, so that the cold air and the hot air used for heat exchanging are stored by the heat exchanging jacket 43, and the temperature of the outer casing of the electric pile 40 is reduced and increased by the cold air and the hot air;
further, the stack 40 is guided to be in effective contact with the cold and hot air in the heat exchange jacket 43 by the first and second heat exchange fins 431 and 432.
Specifically, please refer to fig. 3, 4 and 6 again, an air inlet pipe 433 penetrates through the bottom of one end of the heat exchange sleeve 43, and an air outlet pipe 434 penetrates through the top of the other end;
the heat exchange mechanism 44 comprises a heat exchange box 441 connected with the outlet end of the water vapor pipeline 42 through a pipeline, and a fan 443 connected with the outlet end of the heat exchange box 441 through a pipeline, wherein the outlet end of the fan 443 is connected with the inlet end of the air inlet pipe 433, which extends to the outside through a pipeline;
in this embodiment, the water vapor exhausted from the electric pile 40 enters the heat exchange jacket 43 through the water vapor pipe 42, the cold air and the hot air in the heat exchange jacket 43 enter the air inlet pipe 433 under the action of the fan 443, and the consumed air in the heat exchange jacket 43 flows back to the heat exchange box 441 through the air outlet pipe 434.
Specifically, please refer to fig. 3 and 7 again, further including first capillary tubes 435 passing through the shells of the first heat exchange fins 431 and second capillary tubes 436 passing through the shells of the second heat exchange fins 432, wherein two adjacent first capillary tubes 435 are connected by a first air pipe 437, and two adjacent second capillary tubes 436 are connected by a second air pipe 438;
the heat exchange mechanism 44 further comprises a cold plate 444 and a first hot plate 445 which are arranged at the bottom end of the interior of the heat exchange box 441, and a second hot plate 446 which is arranged between the cold plate 444 and the first hot plate 445, wherein a semiconductor refrigerator 447 is arranged on the shell of the first hot plate 445, and heating copper pipes 448 are arranged on the shells of the first hot plate 445 and the second hot plate 446;
one side of the heat exchange box 441, which is far away from the water vapor pipeline 42, is connected with a water pump 442 through a pipeline, the output end of the water pump 442 is connected with a first water outlet pipe 4411, the output end of the first water outlet pipe 4411 is connected with a three-way pipe 4412, the output end of the three-way pipe 4412 is connected with a second water outlet pipe 4413, and the two second water outlet pipes 4413 are respectively connected with the first capillary tube 435 and the second capillary tube 436;
a water collecting groove 449 is formed in the bottom end of one side of the cold plate 444, and the water collecting groove 449 is installed on the surface of the inner wall of the heat exchange box 441;
it should be noted that, in this embodiment, the cold water or the hot water stored in the heat exchange box 441 passes through the plurality of first capillary tubes 435 and the first air pipe 437, and the plurality of second capillary tubes 436 and the second air pipe 438, so as to exchange heat from the air outlet direction of the heat exchange jacket 43 to the air inlet direction of the heat exchange jacket 43, so as to improve the uniformity of the temperature change in the heat exchange jacket 43;
further, the cold plate 444 cools the water vapor or air entering the heat exchange box 441 by the cold air produced by the semiconductor cooler 447 thereon, the water vapor is pre-condensed into water drops as it passes through the cold plate 444, the remaining air passes through the first and second hot plates 445 and 446, the first and second hot plates 445 and 446 compensate the temperature of the air by heating the copper tube 448 thereon, and the air advances in an S-shape due to the staggered arrangement of the first and second hot plates 445 and 446, so that the air is sufficiently contacted with the first and second hot plates 445 and 446;
further, the water heated by the first hot plate 445 is conveyed to the first water outlet pipe 4411 through the water pump 442, the hot water in the first water outlet pipe 4411 is divided by the three-way pipe 4412 and then enters the first capillary 435 and the second capillary 436 through the two second water outlet pipes 4413, so that the water is supplied to the first capillary 435 and the second capillary 436, both the water outlet end and the water inlet end of the water pump 442 can be provided with valve bodies, and both the valve bodies are respectively connected with the water collecting tank 449 and the water stored on one side of the first hot plate 445 through pipes, so that the water output by the water pump 442 is switched to be the hot water heated on one side of the first hot plate 445 or the cold water cooled by the cold plate 444;
further, cold water remaining after the refrigeration of the cold plate 444 is stored through the water collecting groove 449.
The utility model discloses a concrete operation as follows:
when the whole vehicle 10 is in a fault and suddenly stops, the whole vehicle 10 transmits an Estop hard wire signal to the bidirectional DC-DC circuit module 30 and the power battery 20, after the sudden stop signal is received, the power battery 20 serves as a power supply, the bidirectional DC-DC circuit module 30 works to output a constant voltage to supply high voltage to the voltage reduction DCL circuit module 53, the air compressor controller ACP51 and the high-voltage power distribution unit PCU52, the voltage reduction DCL circuit module 53 and the high-voltage power distribution unit PCU52 supply high voltage and low voltage to the fuel cell accessory system 60 of the fuel cell system, the fuel cell starts to purge, after the set threshold value is purged, the bidirectional DC-DC circuit module 30 and the power battery 20 enter a sleep mode, and the fuel cell system stops working.
The present invention has been described above with reference to the accompanying drawings, and it is obvious that the present invention is not limited by the above-mentioned manner, if the method and the technical solution of the present invention are adopted, the present invention can be directly applied to other occasions without substantial improvement, and the present invention is within the protection scope of the present invention.
Claims (10)
1. The fuel cell system for preventing the damage of the cold frozen ice is characterized by comprising a whole vehicle (10), a power cell (20) and a bidirectional DC-DC circuit module (30), wherein the power cell and the bidirectional DC-DC circuit module are connected with the output end of the whole vehicle (10), the output end of the bidirectional DC-DC circuit module (30) is connected with a boosting DC-DC circuit module (50), and the output end of the boosting DC-DC circuit module (50) is connected with a galvanic pile (40) and a fuel cell accessory system (60).
2. A fuel cell system against cold freeze ice damage according to claim 1 wherein said boost DC-DC circuit module (50) includes an air compressor controller ACP (51), a high voltage power distribution unit PCU (52) and a buck DCL circuit module (53) connected to outputs of said bi-directional DC-DC circuit module (30), outputs of said high voltage power distribution unit PCU (52) and buck DCL circuit module (53) being connected to said fuel cell accessory system (60).
3. The fuel cell system for preventing damage of cold frozen ice according to claim 1, wherein an oxygen pipeline (41) and a water vapor pipeline (42) are arranged on one side of the electric stack (40), a heat exchange sleeve (43) is sleeved outside the electric stack (40), the heat exchange sleeve (43) is connected with a heat exchange mechanism (44), and an input end of the heat exchange mechanism (44) is connected with an output end of the water vapor pipeline (42).
4. A fuel cell system for preventing damage of cold frozen ice according to claim 3, wherein the heat exchanging jacket (43) is provided at an inner portion thereof with a plurality of first heat exchanging fins (431) mounted on an outer surface of the boost DC-DC circuit module (50), and a second heat exchanging fin (432) disposed between adjacent two of the first heat exchanging fins (431), the second heat exchanging fin (432) being mounted on an outer surface of the boost DC-DC circuit module (50).
5. The fuel cell system for preventing damage of cold frozen ice according to claim 4, wherein the heat exchange jacket (43) is provided with an air inlet pipe (433) at the bottom of one end and an air outlet pipe (434) at the top of the other end.
6. The fuel cell system of claim 5, wherein the heat exchanging mechanism (44) comprises a heat exchanging box (441) connected to the outlet end of the water vapor pipe (42) through a pipe, and a blower (443) connected to the outlet end of the heat exchanging box (441) through a pipe, and the outlet end of the blower (443) is connected to the inlet end of the air inlet pipe (433) extending to the outside through a pipe.
7. The fuel cell system for preventing damage of cold freezing ice according to claim 6, further comprising first capillary tubes (435) passing through the housings of the first heat exchange fins (431), second capillary tubes (436) passing through the housings of the second heat exchange fins (432), wherein two adjacent first capillary tubes (435) are connected through a first air pipe (437), and two adjacent second capillary tubes (436) are connected through a second air pipe (438).
8. The fuel cell system of claim 7, wherein the heat exchanging mechanism (44) further comprises a cold plate (444) and a first hot plate (445) mounted at the bottom end of the inside of the heat exchanging box (441), and a second hot plate (446) disposed between the cold plate (444) and the first hot plate (445), wherein a semiconductor refrigerator (447) is disposed on the housing of the first hot plate (445), and a heating copper pipe (448) is disposed on the housings of the first hot plate (445) and the second hot plate (446).
9. The fuel cell system for preventing damage of cold frozen ice according to claim 8, wherein a water pump (442) is connected to one side of the heat exchange box (441) far away from the water vapor pipeline (42) through a pipeline, a first water outlet pipe (4411) is connected to an output end of the water pump (442), a three-way pipe (4412) is connected to an output end of the first water outlet pipe (4411), a second water outlet pipe (4413) is connected to an output end of the three-way pipe (4412), and the two second water outlet pipes (4413) are respectively connected with the first capillary tube (435) and the second capillary tube (436).
10. The fuel cell system for preventing damage of cold frozen ice according to claim 9, wherein a bottom end of one side of the cold plate (444) is provided with a water collecting groove (449), and the water collecting groove (449) is installed on an inner wall surface of the heat exchange tank (441).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220733553.8U CN217134423U (en) | 2022-03-31 | 2022-03-31 | Fuel cell system capable of preventing damage of cold frozen ice |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220733553.8U CN217134423U (en) | 2022-03-31 | 2022-03-31 | Fuel cell system capable of preventing damage of cold frozen ice |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217134423U true CN217134423U (en) | 2022-08-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220733553.8U Active CN217134423U (en) | 2022-03-31 | 2022-03-31 | Fuel cell system capable of preventing damage of cold frozen ice |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217134423U (en) |
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2022
- 2022-03-31 CN CN202220733553.8U patent/CN217134423U/en active Active
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