CN214313275U - Connection sealing structure of hydrogen fuel cell and DCDC converter - Google Patents
Connection sealing structure of hydrogen fuel cell and DCDC converter Download PDFInfo
- Publication number
- CN214313275U CN214313275U CN202120282579.0U CN202120282579U CN214313275U CN 214313275 U CN214313275 U CN 214313275U CN 202120282579 U CN202120282579 U CN 202120282579U CN 214313275 U CN214313275 U CN 214313275U
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- dcdc converter
- pile
- cavity
- wall terminal
- fuel cell
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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
- 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
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
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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
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/72—Electric energy management in electromobility
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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
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Abstract
The utility model belongs to the technical field of hydrogen fuel engine, a seal structure of plugging into of hydrogen fuel cell and DCDC converter is disclosed, include: DCDC converter (1), wear wall terminal (2), pile (3), directly link copper bar (4), sealing strip (5), wear wall terminal sealing strip (6), pile cavity (7) and DCDC converter cavity (8), have intercommunication department between DCDC converter cavity and the pile cavity, wear wall terminal overcoat to connect and be equipped with and wear wall terminal sealing strip and wholly inlay the dress and fix intercommunication department, the upper end of wearing the wall terminal is located DCDC converter cavity, directly links the copper bar and is located the pile cavity, the sealing strip embedding installation is located between DCDC converter and the pile, encircles the periphery in intercommunication department. The utility model discloses can solve the problem that the hydrogen gathering concentration of the mode of plugging into that fuel cell pile and DCDC converter copper bar directly link rises, improve the security performance.
Description
Technical Field
The utility model belongs to the technical field of hydrogen fuel engine, especially, relate to a seal structure of plugging into of hydrogen fuel cell and DCDC converter.
Background
The fuel cell electric automobile is the development direction of recent and future automobiles and is the progress expression of scientific and technical development. The converter is an important part in a power system of a fuel cell vehicle, and has the main function of converting the voltage of a fuel cell through an integrated circuit, converting an unadjustable direct current power supply into an adjustable direct current power supply and stably outputting the voltage required by the system. The fuel cell DCDC converter works together with the fuel cell and is a core device in a power supply system in a fuel cell electric vehicle.
As a core device in a hydrogen fuel cell system, reliability, economy, and rationality of the connection between the hydrogen fuel cell and the DCDC converter become important. Due to the limitation of space and cost, the galvanic pile and the DCDC converter are increasingly used in a manner of direct connection through a copper bar. Most of copper bar direct-connecting modes in the current market are that a hole is formed in the upper portion of a hydrogen fuel cell stack cavity, a hole is formed in the lower portion of a DCDC converter cavity, the two holes are communicated (the cavity between the stack and the DCDC converter is communicated), and the copper bar is directly connected with the hole, so that the purposes of saving the whole vehicle space and saving the connector cost are achieved.
However, the direct connection of the copper bars in the cavities has a fatal defect: the fuel cell pile can generate residual hydrogen in the power generation process, the hydrogen concentration in the cavity can be higher and higher after long-time accumulation, a large number of integrated circuit boards and high-voltage components are arranged in the DCDC converter, the components can be switched on and off at high frequency in the working process, heating or arc discharge is inevitable, when the hydrogen concentration reaches a certain threshold, hydrogen explosion can be caused by high temperature and arc discharge, destructive damage can be caused to the whole system, and even personnel safety can be endangered. Therefore, in the prior art, the problem of hydrogen concentration accumulation in a connection mode of a hydrogen fuel cell stack and a DCDC converter is not well solved, and potential safety hazards exist.
SUMMERY OF THE UTILITY MODEL
An object of the embodiment of the utility model is to provide a hydrogen fuel cell plugs into seal structure with DCDC converter, can solve the problem that the hydrogen gathering concentration of the mode of plugging into that fuel cell pile and DCDC converter copper bar directly link rises, improves the security performance.
The embodiment of the utility model provides a realize like this:
a hydrogen fuel cell and DCDC converter docking sealing structure, comprising: DCDC converter, wear wall terminal, pile, directly link copper bar, sealing strip, wear wall terminal sealing strip, pile cavity and DCDC converter cavity, DCDC converter cavity are located inside the DCDC converter, and the pile is inside to have the pile cavity, and DCDC converter and adjacent fixed setting of pile to intercommunication department has between DCDC converter cavity and the pile cavity, the lower extreme of wearing the wall terminal is connected with directly linking the copper bar electricity, wears the outer cup joint of wall terminal to be equipped with and wears wall terminal sealing strip and wholly inlay the dress to fix intercommunication department, the upper end of wearing the wall terminal is located DCDC converter cavity, directly links the copper bar and is located the pile cavity, sealing strip embedding installation is located between DCDC converter and the pile, encircles the periphery in intercommunication department.
In the embodiment of the utility model, the hydrogen fuel cell stack and the DCDC converter can not only directly use the copper bar to connect and save space, but also can be divided into two independent cavities to prevent hydrogen from gathering in the DCDC converter, and the hydrogen is promoted from technical, economic and safety aspects; adopt the utility model discloses a seal structure can avoid taking place on the current market, and during fuel cell system pile and DCDC converter copper bar directly linked the scheme, the risk that deflagration, explosion take place until reaching limit concentration in the inside continuous gathering of fuel cell pile.
Drawings
Fig. 1 is a combination view of a hydrogen fuel cell and a DCDC converter according to the present invention;
fig. 2 is an exploded view of the hydrogen fuel cell and the DCDC converter according to the present invention;
fig. 3 is a plan view of the assembled view of the hydrogen fuel cell and the DCDC converter according to the present invention;
FIG. 4 is a cross-sectional view A-A of FIG. 3;
fig. 5 is a sectional view taken along line B-B of fig. 3.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The following detailed description is given to specific implementations of the present invention with reference to specific embodiments:
as shown in fig. 1 to 5, a sealing structure for connecting a hydrogen fuel cell to a DCDC converter includes: DCDC converter 1, wear wall terminal 2, pile 3, directly link copper bar 4, sealing strip 5, wear wall terminal sealing strip 6, pile cavity 7 and DCDC converter cavity 8, DCDC converter cavity is located inside the DCDC converter, and the pile is inside to have the pile cavity, and DCDC converter and adjacent fixed setting of pile to intercommunication department has between DCDC converter cavity and the pile cavity, the lower extreme of wearing the wall terminal is connected with directly linking the copper bar electricity, and it is equipped with and wears wall terminal sealing strip and wholly inlays the dress to fix to wear wall terminal overcoat joint intercommunication department, the upper end of wearing the wall terminal is located DCDC converter cavity, directly links the copper bar and is located the pile cavity, sealing strip embedding installation is located between DCDC converter and the pile, encircles the periphery in intercommunication department.
Known from the figure, because the existence of the sealing strip of two different positions, make sealed effect obtain effective assurance, make the pile cavity all isolated to the outside, sealed effect is strengthened, DCDC converter cavity 8 is through DCDC converter 1, wear wall terminal 2 and wear wall terminal sealing strip 6 and form, pile cavity 7 is through DCDC converter 1, wear wall terminal 2, pile 3, sealing strip 5 and wear wall terminal sealing strip 6 and form, two cavities are independent each other, play the sealing action, make the surplus hydrogen that produces in the pile cavity, can not gather in DCDC converter cavity, thereby can not take place the hydrogen explosion in having guaranteed DCDC converter cavity, whole system's security has been guaranteed.
In the embodiment of the utility model, the hydrogen fuel cell stack and the DCDC converter can not only directly use the copper bar to connect and save space, but also can be divided into two independent cavities to prevent hydrogen from gathering in the DCDC converter, and the hydrogen is promoted from technical, economic and safety aspects; adopt the utility model discloses a seal structure can avoid taking place on the current market, and during fuel cell system pile and DCDC converter copper bar directly linked the scheme, the risk that deflagration, explosion take place until reaching limit concentration in the inside continuous gathering of fuel cell pile.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (1)
1. A hydrogen fuel cell and DCDC converter sealing structure that plugs into, characterized by includes: DCDC converter, wear wall terminal, pile, directly link copper bar, sealing strip, wear wall terminal sealing strip, pile cavity and DCDC converter cavity, DCDC converter cavity are located inside the DCDC converter, and the pile is inside to have the pile cavity, and DCDC converter and adjacent fixed setting of pile to intercommunication department has between DCDC converter cavity and the pile cavity, the lower extreme of wearing the wall terminal is connected with directly linking the copper bar electricity, wears the outer cup joint of wall terminal to be equipped with and wears wall terminal sealing strip and wholly inlay the dress to fix intercommunication department, the upper end of wearing the wall terminal is located DCDC converter cavity, directly links the copper bar and is located the pile cavity, sealing strip embedding installation is located between DCDC converter and the pile, encircles the periphery in intercommunication department.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120282579.0U CN214313275U (en) | 2021-02-01 | 2021-02-01 | Connection sealing structure of hydrogen fuel cell and DCDC converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120282579.0U CN214313275U (en) | 2021-02-01 | 2021-02-01 | Connection sealing structure of hydrogen fuel cell and DCDC converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214313275U true CN214313275U (en) | 2021-09-28 |
Family
ID=77832513
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120282579.0U Active CN214313275U (en) | 2021-02-01 | 2021-02-01 | Connection sealing structure of hydrogen fuel cell and DCDC converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214313275U (en) |
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2021
- 2021-02-01 CN CN202120282579.0U patent/CN214313275U/en active Active
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