CN211150988U - Fuel cell system and whole vehicle power system - Google Patents
Fuel cell system and whole vehicle power system Download PDFInfo
- Publication number
- CN211150988U CN211150988U CN201922477092.3U CN201922477092U CN211150988U CN 211150988 U CN211150988 U CN 211150988U CN 201922477092 U CN201922477092 U CN 201922477092U CN 211150988 U CN211150988 U CN 211150988U
- Authority
- CN
- China
- Prior art keywords
- fuel cell
- interface
- cell system
- low voltage
- copper bar
- 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
Images
Classifications
-
- 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
Abstract
The utility model provides a fuel cell system and a complete vehicle power system, which comprises a fuel cell box body, a high-low voltage direct current converter and a connector; the fuel cell box body is provided with a first interface, and the high-low voltage direct current converter is provided with a second interface; the connector comprises a conductive part, one part of the conductive part is inserted into the first interface, the other part of the conductive part is inserted into the second interface, and the length of the conductive part is matched with the sum of the maximum depths of the first interface and the second interface. The utility model discloses a conductive part of connector links to each other fuel cell box and high-low pressure direct current converter, and the length of conductive part and the maximum degree of depth sum phase-match of first interface and second interface can reduce the space between fuel cell box and the high-low pressure direct current converter through the length direction's of conductive part design from this, has increased fuel cell system's usable space promptly, is favorable to the high integrated design.
Description
Technical Field
The utility model relates to a fuel cell technical field, in particular to fuel cell system and whole car driving system.
Background
A high-power high-low voltage direct current converter is required to be connected between the fuel cell system and a high-voltage battery of the whole vehicle power system to realize voltage matching and energy distribution. The high-power high-low voltage DC converter is a device specially used for fuel cell vehicles. A high-low voltage direct current converter (DC/DC) is used for realizing the mutual conversion of low-voltage direct current and adjustable high-voltage direct current.
The integration between the battery box and the high-low voltage dc converter of the existing fuel cell system is usually performed through a connection line and an interface. Generally, the interfaces are centrally disposed on the side surfaces of the fuel cells, and the high-voltage and low-voltage direct-current converters are connected with the fuel cells through connecting lines and interfaces. The existence of the connecting line not only enables the transmission energy of the current and the voltage to be attenuated along with the length of the connecting line, but also enables the available space of the product to be reduced. This integration of connectors requiring wiring design is detrimental to the high integration design of the fuel cell system.
Disclosure of Invention
The utility model aims at providing a fuel cell system and whole car driving system to it is unfavorable for the high integrated problem of fuel cell system to solve current fuel cell system integrated mode.
In order to solve the above technical problem, the present invention provides a fuel cell system, which includes a fuel cell box, a high-low voltage dc converter and a connector, wherein the fuel cell box has a first interface, and the high-low voltage dc converter has a second interface; the connector comprises a conductive part, one part of the conductive part is inserted into the first interface, the other part of the conductive part is inserted into the second interface, and the length of the conductive part is matched with the sum of the maximum depths of the first interface and the second interface.
Optionally, in the fuel cell system, the conductive portion includes an anode copper bar and a cathode copper bar, the anode copper bar and the cathode copper bar are arranged in parallel, and two ends of the anode copper bar and the cathode copper bar are respectively inserted into the first interface and the second interface.
Optionally, in the fuel cell system, the first interface includes a first positive interface and a first negative interface, and the second interface includes a second positive interface and a second negative interface; the two ends of the positive electrode copper bar are respectively inserted into the first positive electrode interface and the second positive electrode interface and are respectively electrically connected with the positive electrode of the fuel cell box body and the positive electrode of the high-low voltage direct current converter; and two ends of the negative electrode copper bar are respectively inserted into the first negative electrode interface and the second negative electrode interface and are respectively and electrically connected with the negative electrode of the fuel cell box body and the negative electrode of the high-low voltage direct current converter.
Optionally, in the fuel cell system, the anode copper bar and the cathode copper bar are both in a column shape.
Optionally, in the fuel cell system, the connector further includes an insulating portion, the insulating portion is disposed around the conductive portion, defines a position of the conductive portion, and is detachably connected to the fuel cell case and the high-low voltage dc converter.
Optionally, in the fuel cell system, a dimension of the insulating portion in a length direction of the conductive portion is not greater than a length of the conductive portion.
Optionally, in the fuel cell system, the connector further includes a limiting member, and the limiting member limits a relative position between the connector and the fuel cell case and between the connector and the high-low voltage dc converter.
Optionally, in the fuel cell system, the fuel cell case and the high-low voltage dc converter are stacked.
Optionally, in the fuel cell system, the fuel cell box and the high-low voltage dc converter are arranged laterally in parallel.
The utility model also provides a whole car driving system, whole car driving system include above any kind of fuel cell system.
The utility model provides a fuel cell system and a complete vehicle power system, which comprises a fuel cell box body, a high-low voltage direct current converter and a connector; the fuel cell box body is provided with a first interface, and the high-low voltage direct current converter is provided with a second interface; the connector comprises a conductive part, one part of the conductive part is inserted into the first interface, the other part of the conductive part is inserted into the second interface, and the length of the conductive part is matched with the sum of the maximum depths of the first interface and the second interface. The first interface of the fuel cell box body is connected with the second interface of the high-low voltage direct current converter through the conducting part of the connector, so that the fuel cell box body is electrically connected with the high-low voltage direct current converter. Meanwhile, the length of the conductive part is matched with the sum of the maximum depths of the first interface and the second interface, so that the space between the fuel cell box body and the high-low voltage direct current converter can be reduced through the design of the length direction of the conductive part, namely, the available space of the fuel cell system is increased, and the high-integration design is facilitated.
Drawings
FIG. 1 is a schematic, broken away view of a fuel cell system;
FIG. 2 is a schematic diagram of a fuel cell system connection;
wherein the reference numerals are as follows:
1-a fuel cell housing; 2-a high-low voltage dc converter; 3-a connector; 4-a limiting member;
21-a second interface; 211-a second positive interface; 212-a second negative interface; 31-a conductive portion; 32-an insulating part; 311-positive copper bar; 312-negative copper bar.
Detailed Description
The fuel cell system and the entire vehicle power system proposed by the present invention will be further described in detail with reference to the accompanying drawings and specific embodiments. It should be noted that the drawings are in simplified form and are not to precise scale, and are provided for convenience and clarity in order to facilitate the description of the embodiments of the present invention. Further, the structures illustrated in the drawings are often part of actual structures. In particular, the drawings may have different emphasis points and may sometimes be scaled differently.
In this embodiment, the connection between one portion and another portion includes not only electrical connection but also mechanical connection.
As shown in fig. 1, the present embodiment provides a fuel cell system including a fuel cell case 1, a high-low voltage dc converter 2, and a connector 3, wherein the fuel cell case 1 has a first interface, and the high-low voltage dc converter 2 has a second interface 21; the connector 3 comprises a conductive part 31, one part of the conductive part 31 is inserted into the first interface, the other part of the conductive part 31 is inserted into the second interface 21, and the length of the conductive part 31 is matched with the sum of the maximum depths of the first interface and the second interface 21.
Therefore, in the present embodiment, compared to the prior art, the length of the conductive portion 31 is designed to be equal to or slightly greater than the sum of the maximum depths of the first interface and the second interface 21, so that the space between the fuel cell case and the high-low voltage dc converter is as small as possible while ensuring the reliability of the electrical connection between the fuel cell case and the high-low voltage dc converter.
In the fuel cell system according to the present embodiment, the conductive portion 31 connects the fuel cell case 1 to the high-low voltage dc converter 2, so that the fuel cell case 1 and the high-low voltage dc converter 2 are electrically connected to each other. Meanwhile, since the length of the conductive part 31 is matched with the sum of the maximum depths of the first interface and the second interface 21, the space between the fuel cell box 1 and the high-low voltage direct current converter 2 can be reduced by controlling the length of the conductive part 31, so that the available space of the fuel cell system is increased, and high integration design is facilitated.
In this embodiment, the conductive portion 31 includes an anode copper bar 311 and a cathode copper bar 312, the anode copper bar 311 and the cathode copper bar 312 are arranged in parallel, and two ends of the anode copper bar 311 and the cathode copper bar 312 are respectively inserted into the first interface and the second interface 21.
Because copper has excellent electric conductivity, the copper bar is used as the electric conduction part, so that the loss of current and voltage on the connector can be effectively reduced.
Further, in this embodiment, the positive copper bar 311 and the negative copper bar 312 are both in a column shape. The columnar structure is beneficial to voltage and current transmission, and energy loss on the connector can be reduced. Meanwhile, the copper bar with the columnar structure is beneficial to industrial production and processing.
Of course, in other embodiments, the shapes of the positive copper bar 311 and the negative copper bar 312 may be changed according to actual requirements, and the shapes of the opposite insertion portions at the two ends of the copper bars should meet the functional requirements of the opposite insertion with the interface.
Further, the first interface includes a first positive interface and a first negative interface, the second interface 21 includes a second positive interface 211 and a second negative interface 212, as shown in fig. 1, two ends of the positive copper bar 311 are respectively inserted into the first positive interface (not shown in the figure) and the second positive interface 211, and are respectively electrically connected to the positive electrode of the fuel cell case 1 and the positive electrode of the high-low voltage dc converter 2; the two ends of the negative electrode copper bar 312 are respectively inserted into the first negative electrode interface (not shown in the figure) and the second negative electrode interface 212, and are respectively electrically connected with the negative electrode of the fuel cell box 1 and the negative electrode of the high-low voltage dc converter 2.
And splitting the first interface into a group of independent first positive interface and first negative interface, and splitting the second interface into a group of independent second positive interface and second negative interface. The connector has the advantages that the possibility of short circuit between the anode and the cathode of the interface can be effectively avoided, meanwhile, the design of the interface is more diversified, and the possibility is provided for the design of different types of connectors.
In this embodiment, the connector 3 further includes an insulating portion 32, as shown in fig. 1, the insulating portion 32 is disposed on the outer periphery of the conductive portion 31, defines the position of the conductive portion 31, and is detachably connected to the fuel cell case 1 and the high-low voltage dc converter 2.
Due to the existence of the insulation part 33, the fuel cell box 1, the high-low voltage direct current converter 2 and the connector 3 are insulated at non-interface connection positions, and short circuit risks except the interface connection positions are avoided.
Further, the dimension of the insulating portion 32 in the length direction of the conductive portion 31 is not greater than the length of the conductive portion 31, so that poor conduction caused by the insulating portion 32 in some cases can be avoided.
For example, in the present embodiment, if the dimension of the insulating portion 32 in the longitudinal direction of the conductive portion 31 is larger than the length of the conductive portion 31, when the connector 3 is inserted into the first interface or the second interface, the insulating portion 32 may contact the fuel cell case 1 or the high-low voltage dc converter 2 first, which restricts the insertion operation of the conductive portion 31, and the conductive portion 31 may not be inserted into the first interface or the second interface, which may cause an electrical contact failure and cause a disconnection failure of the fuel cell system.
In the present embodiment, the socket connector further includes a stopper 4, and the stopper 4 restricts the relative positions of the socket connector 3, the fuel cell case 1, and the high-low voltage dc converter 2.
In this embodiment, the limiting member 4 is a bolt, and in other embodiments, the limiting member may also be a staple, a buckle, or a combination of the bolt and the like.
In the fuel cell system provided in the present embodiment, the fuel cell case and the high-low voltage dc converter are arranged in a stack, as shown in fig. 1 and 2. In other embodiments, the fuel cell box and the high-low voltage dc converter may be arranged laterally in parallel, and the connector 3 should be located at the lateral middle position of the fuel cell system.
As shown in fig. 1, in the present embodiment, the first positive electrode port and the first negative electrode port are located on the top of the fuel cell case 1. The insulating part 32 is fixed to the top of the fuel cell case 1 by the bolts 4, so that the bottom of the positive copper bar 311 and the bottom of the negative copper bar 312 are respectively and reliably connected to the first positive interface and the first negative interface of the fuel cell case 1, and the position between the connector 3 and the fuel cell case 1 is fixed. The fastening direction of the bolts 4 may be from the fuel cell case 1 to the socket connector 3.
As shown in fig. 2, in the present embodiment, the second positive interface 211 and the second negative interface 212 are located inside the high-low voltage dc converter 2, and the interfaces are oriented downward. The insulating portion 32 is fixed to the bottom of the high-low voltage dc converter 2 by the bolts 4, so that the position between the connector 3 and the high-low voltage dc converter 2 is fixed. Meanwhile, after the insulating portion 32 contacts the bottom of the high-low voltage dc converter 2, the top of the positive copper bar 311 and the top of the negative copper bar 312 contact the second positive interface 211 and the second negative interface 212, respectively. The fastening direction of the bolt 4 may be from the high-low voltage dc converter 2 to the connector 3.
Furthermore, in order to ensure reliable connection between the positive copper bar 311 and the second positive interface 211 and between the negative copper bar 312 and the second negative interface 212, the positive copper bar 311 and the second positive interface 211, and the negative copper bar 312 and the second negative interface 212 may be fastened by the bolt 4.
Due to the action of the limiting piece 4, the connector 3 is firmly connected with the fuel cell box 1 and the high-low voltage direct current converter 2, so that not only is the mechanical structure of the fuel cell system stable, but also the electrical connection of the fuel cell system is reliable.
The embodiment also provides a complete vehicle power system, which comprises the fuel cell system.
To sum up, the utility model provides a fuel cell system and whole car driving system have solved current fuel cell system integrated mode and have been unfavorable for the high integrated problem of fuel cell system.
The above description is only for the preferred embodiment of the present invention and is not intended to limit the scope of the present invention, and any modification and modification made by those skilled in the art according to the above disclosure are all within the scope of the claims.
Claims (10)
1. A fuel cell system, characterized in that the fuel cell system comprises a fuel cell box, a high-low voltage DC converter and a connector;
the fuel cell box body is provided with a first interface, and the high-low voltage direct current converter is provided with a second interface;
the connector comprises a conductive part, one part of the conductive part is inserted into the first interface, the other part of the conductive part is inserted into the second interface, and the length of the conductive part is matched with the sum of the maximum depths of the first interface and the second interface.
2. The fuel cell system according to claim 1, wherein the conductive portion includes a positive copper bar and a negative copper bar, the positive copper bar and the negative copper bar are juxtaposed, and both ends of the positive copper bar and the negative copper bar are respectively inserted into the first interface and the second interface.
3. The fuel cell system of claim 2, wherein the first interface comprises a first positive interface and a first negative interface, and the second interface comprises a second positive interface and a second negative interface;
the two ends of the positive electrode copper bar are respectively inserted into the first positive electrode interface and the second positive electrode interface and are respectively electrically connected with the positive electrode of the fuel cell box body and the positive electrode of the high-low voltage direct current converter;
and two ends of the negative electrode copper bar are respectively inserted into the first negative electrode interface and the second negative electrode interface and are respectively and electrically connected with the negative electrode of the fuel cell box body and the negative electrode of the high-low voltage direct current converter.
4. The fuel cell system according to claim 2, wherein the positive copper bar and the negative copper bar are each columnar.
5. The fuel cell system according to claim 1, wherein the connector further comprises an insulating portion that is fitted around an outer periphery of the conductive portion, defines a position of the conductive portion, and is detachably connected to the fuel cell case and the high-low voltage dc converter.
6. The fuel cell system according to claim 5, wherein a dimension of the insulating portion in a length direction of the conductive portion is not greater than a length of the conductive portion.
7. The fuel cell system according to claim 1, wherein the connector further comprises a stopper that restricts a relative position of the connector with respect to the fuel cell case and the high-low voltage dc converter.
8. The fuel cell system according to any one of claims 1 to 7, wherein the fuel cell case and the high-low voltage DC converter are arranged in a stack.
9. The fuel cell system according to any one of claims 1 to 7, wherein the fuel cell case and the high-low voltage DC converter are arranged laterally in parallel.
10. A vehicle power system, characterized in that the vehicle power system comprises the fuel cell system of any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922477092.3U CN211150988U (en) | 2019-12-31 | 2019-12-31 | Fuel cell system and whole vehicle power system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922477092.3U CN211150988U (en) | 2019-12-31 | 2019-12-31 | Fuel cell system and whole vehicle power system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211150988U true CN211150988U (en) | 2020-07-31 |
Family
ID=71756952
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922477092.3U Active CN211150988U (en) | 2019-12-31 | 2019-12-31 | Fuel cell system and whole vehicle power system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211150988U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112134440A (en) * | 2020-08-27 | 2020-12-25 | 东风汽车集团有限公司 | Direct connection structure of direct current converter and electric pile |
-
2019
- 2019-12-31 CN CN201922477092.3U patent/CN211150988U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112134440A (en) * | 2020-08-27 | 2020-12-25 | 东风汽车集团有限公司 | Direct connection structure of direct current converter and electric pile |
| CN112134440B (en) * | 2020-08-27 | 2021-10-15 | 东风汽车集团有限公司 | Direct connection structure of direct current converter and electric pile |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104183809B (en) | Battery module | |
| US9653859B1 (en) | Electrical connector system | |
| CN211150988U (en) | Fuel cell system and whole vehicle power system | |
| CN101355205B (en) | Electrical connector | |
| CN110729580A (en) | Dislocation stack formula fork subassembly | |
| CN217983766U (en) | Battery replacing connector | |
| CN204497390U (en) | Power connector | |
| CN205900860U (en) | Piece type plug terminal | |
| CN107672475B (en) | Charging connector, charging device, kit and charging method | |
| CN104064715B (en) | A kind of export structure of lithium battery group | |
| CN207690907U (en) | A kind of fuel cell pack | |
| CN217387610U (en) | High-current connector with double rows of terminals and terminals thereof | |
| CN218414948U (en) | Battery pack and power supply system of electric equipment | |
| WO2019134312A1 (en) | Electric tool set | |
| CN213150822U (en) | Integrated structure of fuel cell stack and manual maintenance switch | |
| CN219226834U (en) | Large-area contact terminal connector | |
| CN218632525U (en) | Large-current chip type plug-in terminal | |
| CN218005473U (en) | Terminal structure and connector | |
| CN212365864U (en) | Structure for reducing connecting resistance of power cabinet copper bar and contact resistance of contactor | |
| CN217983591U (en) | Battery pack and vehicle | |
| CN219393955U (en) | High-voltage connector integrating branching and fuse | |
| CN213959671U (en) | Bus flexible T-shaped joint | |
| CN209420056U (en) | Electric car Manual maintenance switch assembly | |
| CN215816269U (en) | Power battery connecting piece | |
| CN210723240U (en) | Fuel cell system and vehicle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |