CN114530622B - Integrated structure of fuel cell stack and manual maintenance switch - Google Patents
Integrated structure of fuel cell stack and manual maintenance switchInfo
- Publication number
- CN114530622B CN114530622B CN202011188042.4A CN202011188042A CN114530622B CN 114530622 B CN114530622 B CN 114530622B CN 202011188042 A CN202011188042 A CN 202011188042A CN 114530622 B CN114530622 B CN 114530622B
- Authority
- CN
- China
- Prior art keywords
- fuse
- maintenance switch
- manual
- cell stack
- manual maintenance
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/24—Grouping of fuel cells, e.g. stacking of fuel cells
- H01M8/2465—Details of groupings of fuel cells
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/008—Disposal or recycling of fuel cells
-
- 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Fuel Cell (AREA)
Abstract
The invention discloses an integrated structure of a fuel cell stack and a manual maintenance switch, which relates to the technical field of fuel cells and mainly comprises the fuel cell stack and the manual maintenance switch; the manual maintenance switch comprises a base, a manual power strip, a high-voltage connector and a fuse. The manual power strip is used for being plugged onto a base, mainly achieves a manual disconnection function when dangerous voltage is generated, actively performs electric isolation, isolates the dangerous voltage in a battery stack and cannot occur in an external circuit or a part, and the fuse is a protection device for automatically disconnecting the circuit when excessive current occurs, namely an overcurrent disconnection and overload protection function. The invention has novel and reasonable structure, can integrate the anode and cathode output copper bars of the battery stack and the high-voltage anode and cathode output plug-in components on the manual maintenance switch, overcomes the high sealing requirement and the high-voltage safety requirement of the existing anode and cathode output copper bars and the direct connection parts thereof by high-integration arrangement, and has strong practicability.
Description
Technical Field
The invention belongs to the field of fuel cells, relates to a fuel cell system, and in particular relates to an integrated structure of a fuel cell stack and a manual maintenance switch.
Background
The existing manual maintenance switch is rarely integrated on a fuel cell stack shell, is basically integrated on a high-voltage distribution box or a DCDC (direct current) which is directly connected with a cell stack, and the anode and cathode output copper bars of the fuel cell stack are directly output from a cell stack packaging shell, so that very high requirements are put on sealing and high-voltage safety of the anode and cathode output copper bars and components directly connected with the anode and cathode output copper bars. In addition, the manual maintenance switch occupies a certain space, sometimes because of the space requirement of the passenger car, the battery stack shell does not have the arrangement space of the manual maintenance switch, and the manual maintenance switch needs to be placed at other space positions to meet the requirement, but the current manual maintenance switch does not have such a structure and a connection mode.
Disclosure of Invention
The invention aims to provide an integrated structure of a fuel cell stack and a manual maintenance switch, which is novel and reasonable in structure, and can enable anode and cathode output copper bars of the fuel cell stack and a high-voltage anode and cathode output plug-in unit to be integrated on the manual maintenance switch, and the high-integration arrangement overcomes the high sealing requirement and the high-voltage safety requirement of the existing anode and cathode output copper bars and direct connection components thereof.
In order to achieve the above object, the present invention provides the following solutions:
the invention provides an integrated structure of a fuel cell stack and a manual maintenance switch, which is characterized by comprising the following components:
A cell stack, wherein an anode bus bar and a cathode bus bar are arranged on the cell stack;
The manual maintenance switch comprises a base, a manual power strip, a high-voltage connector and a fuse, wherein the high-voltage connector is arranged on the base, one end of the fuse is electrically connected with the positive bus bar and the negative bus bar, the manual power strip is used for being connected to the base in a plugging mode, the other end of the fuse is conducted with the high-voltage connector when the manual power strip is plugged, current in the battery stack is output to the outside of the battery stack through the high-voltage connector, the other end of the fuse is not conducted with the high-voltage connector when the manual power strip is plugged out, and dangerous voltage in the battery stack is isolated in the battery stack.
Optionally, the cell stack is further configured with an encapsulation housing.
Optionally, the manual maintenance switch is mounted on the cell stack.
Optionally, the manual power strip comprises an upper cover matched with the base and a plurality of copper columns mounted on the bottom surface of the upper cover.
Optionally, the output end of the fuse is connected with a sleeve, and the sleeve is used for plugging the copper column.
Optionally, the input end of the high-voltage connector is provided with a plug connector hole for plugging the copper column, and the plug connector hole and the sleeve are arranged at intervals.
Optionally, the fuse is an embedded fuse or a bolt-on fuse.
Optionally, the manual maintenance switch is independently installed outside the cell stack.
Optionally, a base plate is further installed at the bottom of the base, and a sealing ring is arranged between the base plate and the base.
Optionally, the high-voltage connector and the fuse are installed in a matched mode, and at least one pair of the high-voltage connector and the fuse is arranged. When more than two pairs of high-voltage connectors and fuses are provided, the number of output interfaces of the stack can be increased.
Compared with the prior art, the invention has the following technical effects:
The integrated structure of the fuel cell stack and the manual maintenance switch provided by the invention can be integrated on a cell stack shell, can be independently placed at other space positions far away from the cell stack to meet the requirements, is not limited by the space positions, and is high in integration, so that the high-sealing requirement and the high-voltage safety requirement between the positive and negative output buses and the direct connection part of the positive and negative output buses are avoided, and meanwhile, the high-voltage positive and negative output plug-in is integrated on the manual maintenance switch to replace the original high-voltage positive and negative output copper bars of the cell stack, and the high-voltage plug-in meets the dustproof, waterproof and high-voltage safety requirements. In addition, the fuse is embedded or screwed, novel in design, good in replaceability and high in practicability.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the operation of the fuel cell stack and manual maintenance switch integrated structure of the present invention;
FIG. 2 is a diagram showing an integrated assembly structure of a fuel cell stack and a manual maintenance switch in accordance with the first embodiment;
Fig. 3 is an assembly structure view of a cell stack in the first embodiment;
FIG. 4 is an assembly structure diagram of a manual maintenance switch in the first embodiment;
FIG. 5 is a schematic view of a bolt-on replaceable fuse of the present invention;
FIG. 6 is a schematic view of an embedded replaceable fuse of the present invention;
FIG. 7 is a diagram showing an assembled structure of a manual maintenance switch independent of a cell stack in the second embodiment;
wherein, the reference numerals are as follows:
1. The battery pack comprises a battery stack, an encapsulation shell, 12 positive electrode buses, 13 negative electrode buses;
2. The manual maintenance switch, 21, a base, 22, an upper cover, 23, a copper column, 231, a copper column I, 232, a copper column II, 233, a copper column III, 234, a copper column IV, 24, a high-voltage connector, 25, a fuse, 251, a fuse body, 252, an upper thread seat, 253, a lower thread seat, 254, a fuse I, 255, a fuse II, 26, a tightening sleeve, 27, a plug connector hole, 28 and an insulating base;
3. sleeve, 4, base plate, 5, sealing ring.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention aims to provide an integrated structure of a fuel cell stack and a manual maintenance switch, which has novel and reasonable structure, can integrate anode and cathode output copper bars of the fuel cell stack on the manual maintenance switch, and overcomes the high sealing requirement and high-voltage safety requirement of the prior anode and cathode output copper bars and direct connection parts thereof.
In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention will be rendered by reference to the appended drawings and appended detailed description.
Embodiment one:
As shown in fig. 1-4, the present embodiment provides an integrated structure of a fuel cell stack and a manual maintenance switch, which mainly includes a cell stack 1 and a manual maintenance switch 2, wherein the manual maintenance switch 2 includes a base 21, a manual power strip, a high-voltage connector 24 and a fuse 25, the manual power strip mainly realizes a manual disconnection function when dangerous voltage exists, and actively performs electrical isolation to isolate the dangerous voltage in the cell stack 1 without appearing in an external circuit or a component, and the fuse 25 is a protection device capable of automatically disconnecting the circuit when excessive current occurs, namely, an overcurrent disconnection and overload protection function.
In this embodiment, as shown in fig. 2-4, an insulating base 28 is disposed at the bottom of the base 21, the base 21 is fixed on the packaging shell 11 of the battery stack through four bolts, the battery stack 1 is provided with a positive bus bar 12 and a negative bus bar 13, the manual plug-in board comprises an upper cover 22 and a plurality of copper posts 23 mounted on the bottom surface of the upper cover 22, the high-voltage plug-in unit 24 comprises a positive high-voltage plug-in unit and a negative high-voltage plug-in unit which are respectively plugged and mounted on two side walls of the base 21, the input end of the fuse 25 is electrically connected with the positive bus bar 12 and the negative bus bar 13, and the output end is connected with a sleeve 3 (the lower part of the sleeve is tapped) for plugging with the copper posts. When the copper bar (composed of a plurality of copper posts 23) on the upper cover 22 is inserted into the base 21, the sleeve 3 and the connector holes 27 are conducted under the connection of the copper posts, and at this time, the current can be output to the outside of the battery stack through the high-voltage connector 24.
In this embodiment, the fuse 25 is preferably detachable, and is convenient to replace. The removable fuse may be a bolt-connected removable fuse as shown in fig. 5, or an embedded removable fuse as shown in fig. 6. The bolt-fastened replaceable fuse includes a fuse body 251 and an upper screw seat 252 and a lower screw seat 253 provided on the fuse body 251.
In this embodiment, as shown in fig. 2 to 3, the cell stack 1 is further provided with a package case 11, and the manual maintenance switch 2 is mounted on the package case 11.
In this embodiment, two fuses 25 are provided, and 4 fuses are provided corresponding to the copper pillars 23. As shown in fig. 6, taking an embedded fuse as an example, the first copper pillar 231 and the third copper pillar 233 are conducted through the first fuse 254, the second copper pillar 232 and the fourth copper pillar 234 are conducted through the second fuse 255, and when the copper bar on the upper cover 22 is inserted into the base, the connector holes 27 on the two high-voltage connectors 24 are respectively conducted with the first copper pillar 231 and the second copper pillar 232, so that the current on the cell stack 1 is output out of the cell stack 1 through the high-voltage connectors 24. The advantage is that the interface of output from the cell stack 1 is increased, namely one output interface of the traditional cell stack, the design is two output interfaces, and the sealing effect and the high-voltage safety of the high-voltage plug-in mode are better than those of the traditional cell stack output bus bar.
In this embodiment, the high-voltage connector 24 is an existing connector structure, and the specific structure and working principle are not described herein.
In this embodiment, the base 21 is preferably an MSD base structure, and the corresponding upper cover 22 is preferably an MSD upper cover structure.
In this embodiment, as shown in fig. 4 and 6, a tightening sleeve 26 is sleeved on each copper pillar 23.
Therefore, in the integrated structure of the fuel cell stack and the manual maintenance switch, the anode output bus bars and the cathode output bus bars of the cell stack are integrated on the manual maintenance switch, so that the high-integration arrangement avoids the high sealing requirement and the high-voltage safety requirement between the anode output bus bars and the direct connection part of the anode output bus bars, and meanwhile, the high-voltage anode output plug-in unit is integrated on the manual maintenance switch to replace the original high-voltage anode output copper bars of the cell stack, and the high-voltage plug-in unit is provided with the dustproof and waterproof functions to meet the high-voltage safety requirement. The method is suitable for MSD on PDU and DCDC.
In addition, the manual maintenance switch of the embodiment can be placed at any spatial position of the whole vehicle, is not limited by the spatial position, and is not limited to be integrated on a battery stack shell.
Embodiment two:
As shown in fig. 7, this embodiment provides another integrated structure of the fuel cell stack and the manual maintenance switch, and the structure and principle of the fuel cell stack 1 and the manual maintenance switch 2 are the same as those of the first embodiment, and are not repeated here. The manual maintenance switch 2 is independently arranged outside the battery stack 1, namely, can be placed at any space position of the whole vehicle, but the premise is that the output of the battery stack is also output in a high-voltage connector mode. That is, the current output from the battery stack 1 can be conducted to the third copper column 233 and the fourth copper column 234 through the connector holes 27 on the high-voltage connector 24, through the first copper column 231 and the second copper column 232, and then through the first fuse 254 and the second fuse 255, and then through the high-voltage connector 24 to the external DCDC or PDU and other high-voltage components. As shown in fig. 7, the bottom of the base 21 is further provided with a base plate 4, and a sealing ring 5 is arranged between the base plate 4 and the base 21, so that the requirements of dust prevention and water prevention and sealing are met, and the high-voltage safety performance is also met.
The space around the battery stack is insufficient and can be placed at other space positions of the whole vehicle, so that the flexibility characteristic is embodied.
It should be noted that it will be apparent to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, but may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
The principles and embodiments of the present invention have been described in detail with reference to specific examples, which are provided herein to facilitate understanding of the principles and embodiments of the present invention and to provide further advantages and practical applications for those of ordinary skill in the art in light of the present teachings. In view of the foregoing, this description should not be construed as limiting the invention.
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011188042.4A CN114530622B (en) | 2020-10-30 | 2020-10-30 | Integrated structure of fuel cell stack and manual maintenance switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011188042.4A CN114530622B (en) | 2020-10-30 | 2020-10-30 | Integrated structure of fuel cell stack and manual maintenance switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114530622A CN114530622A (en) | 2022-05-24 |
| CN114530622B true CN114530622B (en) | 2025-10-14 |
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ID=81619358
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011188042.4A Active CN114530622B (en) | 2020-10-30 | 2020-10-30 | Integrated structure of fuel cell stack and manual maintenance switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114530622B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117284082B (en) * | 2023-09-22 | 2024-11-12 | 东风商用车有限公司 | Self-protection maintenance switch, method, system and electric vehicle |
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| CN213150822U (en) * | 2020-10-30 | 2021-05-07 | 未势能源科技有限公司 | An integrated structure of a fuel cell stack and a manual maintenance switch |
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| JP3767423B2 (en) * | 2001-06-11 | 2006-04-19 | トヨタ自動車株式会社 | Vehicle fuel cell module and fuel cell vehicle |
| JP2008243710A (en) * | 2007-03-28 | 2008-10-09 | Denso Corp | Service plug, battery equipment module and battery pack |
| JP2013244941A (en) * | 2012-05-29 | 2013-12-09 | Toyota Motor Corp | Fuel cell vehicle |
| CN203013567U (en) * | 2012-12-28 | 2013-06-19 | 上海西艾爱电子有限公司 | Automobile power supply manual maintenance rapid disconnector |
| US9802558B2 (en) * | 2013-09-27 | 2017-10-31 | GM Global Technology Operations LLC | Distributed vehicle battery high-voltage bus systems and methods |
| DE102014017952A1 (en) * | 2014-12-05 | 2016-06-09 | Daimler Ag | A fuel cell assembly |
| KR102052672B1 (en) * | 2016-02-25 | 2019-12-05 | 주식회사 엘지화학 | Service plug, battery pack comprising the service plug and vehicle comprising the battery pack |
| CN206421982U (en) * | 2016-12-28 | 2017-08-18 | 珠海银隆新能源有限公司 | A kind of manual maintenance switching system applied to charging quickly motor-car |
| CN206460932U (en) * | 2017-03-06 | 2017-09-01 | 西安苏熔电器有限公司 | A kind of electric automobile Manual maintenance switch MSD special fuse |
| CN209420056U (en) * | 2018-11-07 | 2019-09-20 | 浙江永贵电器股份有限公司 | Electric car Manual maintenance switch assembly |
| CN210120207U (en) * | 2019-08-01 | 2020-02-28 | 合肥国轩高科动力能源有限公司 | A high-voltage box system for automobile power battery |
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2020
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN202230958U (en) * | 2011-09-22 | 2012-05-23 | 上海航天电源技术有限责任公司 | Manual maintenance switch |
| CN205971242U (en) * | 2016-08-25 | 2017-02-22 | 合肥国轩高科动力能源有限公司 | A single-system power battery manual maintenance switch device |
| CN213150822U (en) * | 2020-10-30 | 2021-05-07 | 未势能源科技有限公司 | An integrated structure of a fuel cell stack and a manual maintenance switch |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114530622A (en) | 2022-05-24 |
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