燃料电池系统和车辆
By placing the relay contacts on the surface of the cover facing the housing in the fuel cell system, and combining them with heat-conducting blocks and heat exchange structures, the problem of relay contact disconnection and damage during vibration was solved, achieving stable power supply and extending the service life of the system.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHINRY TECH
- Filing Date
- 2025-07-10
- Publication Date
- 2026-07-17
AI Technical Summary
In existing fuel cell systems, relay contacts are prone to momentary disconnection or damage during high-amplitude vibrations, leading to unstable system operation and affecting normal power supply.
The relay contacts are positioned on the surface of the cover facing the enclosure, with the contacts located above the main body. Combined with a heat-conducting block, a buffer heat dissipation structure, and a heat exchange structure, the heat is conducted through the heat-conducting block, the buffer heat dissipation structure buffers vibration, and the heat exchange structure dissipates heat quickly, reducing the risk of contact welding or burning.
This effectively prevents instantaneous disconnection of contacts, ensures normal operation of the relay, guarantees continuous power supply to the fuel cell system, and extends its service life.
Smart Images
Figure CN224519880U_ABST
Abstract
Claims
1. A fuel cell system (100) characterized by, include: Box (11); A cover (12) is provided on the box (11), and the cover (12) and the box (11) together enclose a receiving cavity (13); A DC-DC converter (20) is housed in the receiving cavity (13) and mounted on the cover (12); A relay (30) is housed in the receiving cavity (13). The relay (30) includes a body (31) and a contact (32). The contact (32) is connected to the body (31) and protrudes from the outer surface of the body (31) facing away from the housing (11). The body (31) is connected to the cover (12). A connector (41) connects the DC-DC converter (20) and the contact (32).
2. The fuel cell system (100) according to claim 1, characterized in that The cover (12) includes a top plate (121) opposite to the housing (11), the contact (32) protruding from the surface of the body (31) facing the cover (12), the fuel cell system (100) also includes a heat-conducting block (60) connected to the contact (32) and / or the connector (41), and the heat-conducting block (60) is also thermally conductively connected to the top plate (121).
3. The fuel cell system (100) according to claim 2, characterized in that The cover (12) also includes a buffer heat dissipation structure (123), which is disposed on the surface of the top plate (121) facing the box (11), and the heat-conducting block (60) elastically abuts against the buffer heat dissipation structure (123).
4. The fuel cell system (100) according to claim 3, characterized in that The top plate (121) has a glue storage tank (124) on its surface facing the box body (11). The buffer heat dissipation structure (123) includes a buffer member, which is housed in the glue storage tank (124). At least a portion of the heat-conducting block (60) extends into the glue storage tank (124) and elastically abuts against the buffer member.
5. The fuel cell system (100) according to claim 4, characterized in that The buffer is made of thermally conductive adhesive, which surrounds the thermally conductive block (60).
6. The fuel cell system (100) according to any one of claims 2 to 5, characterized in that The cover (12) also includes a heat exchange structure, which is disposed on the surface of the top plate (121) facing away from the box (11). The heat exchange structure encloses a flow channel (127) through which a cooling medium flows to dissipate heat from the heat-conducting block (60).
7. The fuel cell system (100) according to claim 6, characterized in that The surface of the heat exchange structure facing away from the top plate (121) is also connected to a water nozzle (14), which is connected to the flow channel (127).
8. The fuel cell system (100) according to claim 1, characterized in that The fuel cell system (100) further includes a fuel cell stack (50) and an air compressor controller module (43), both of which are housed in the housing cavity (13). The fuel cell stack (50) is mounted on the housing (11) and electrically connected to the DC-DC converter (20), while the air compressor controller module (43) is mounted on the cover (12).
9. The fuel cell system (100) according to claim 1, characterized in that The fuel cell system (100) also includes a seal (70), through which the housing (11) and the cover (12) are elastically abutted.
10. A vehicle characterized by comprising: A fuel cell system (100) as claimed in any one of claims 7 to 9 for powering an electrical consumer. A fuel cell system (100) as claimed in any one of claims 7 to 9 for powering an electrical consumer.