用于液流电池电堆的压合治具及压合装置
By employing a pressing fixture design with circumferential external and internal positioning in the flow battery stack, the problem of unit stack skew caused by traditional positioning methods is solved, achieving high precision and reliable pressing effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BEIJING XINGCHEN XINNENG TECH CO LTD
- Filing Date
- 2025-08-13
- Publication Date
- 2026-07-17
AI Technical Summary
Traditional flow battery stack pressing and positioning methods have poor positioning effects, which makes the unit stacks prone to tilting during the pressing process, affecting the pressing effect.
The press fixture design includes a first tooling, a second tooling, and multiple positioning components. The first and second positioning components perform external and internal positioning along the circumference of the unit stack. Combined with the positioning area design of the mold, the accurate positioning and reliable fixation of the unit stack are ensured.
It improves the positioning accuracy and reliability of the unit stack, avoids skewing during the pressing process, enhances the pressing effect, and simplifies the operation process.
Smart Images
Figure CN224519895U_ABST
Abstract
Claims
1. A press fixture for a flow battery stack, comprising: The pressing fixture for the flow battery stack includes: A first tooling (10) and a second tooling (50), wherein the first tooling (10) has a plurality of first positioning holes (11) along its circumference, and the second tooling (50) is disposed opposite to the first tooling (10) and has a plurality of second positioning holes (51); and Multiple first positioning elements (20) are provided, each corresponding to a first positioning hole (11) and a second positioning hole (51). The first positioning elements (20) pass through the corresponding first positioning hole (11) and second positioning hole (51) and are connected to the first tooling (10). All the first positioning elements (20) together form a first positioning area (12). The first positioning area (12) is located between the first tooling (10) and the second tooling (50) and is used to position the unit stack (2000).
2. The press tool for a flow battery stack of claim 1, wherein, The surface of the first tooling (10) facing away from the second tooling (50) has a mounting groove (13), which corresponds to and is connected to the first positioning hole (11); The first positioning member (20) includes a first base (21) and a first positioning part (22). The first base (21) is housed in the corresponding mounting groove (13), and the first positioning part (22) passes through the corresponding first positioning hole (11) and second positioning hole (51). The pressing fixture for the flow battery stack also includes a detachable part (40), which is sequentially inserted through the first tooling (10) and the first base (21) and is detachably connected to the first tooling (10) and the first base (21), and the end of the detachable part (40) away from the second tooling (50) is located in the mounting groove (13).
3. The press tool for a flow battery stack of claim 1, wherein, The first tooling (10) has a plurality of third positioning holes (15) along its circumference, the unit stack (2000) has a plurality of fourth positioning holes (2100), and the second tooling (50) has a plurality of fifth positioning holes (52); The pressing fixture for the flow battery stack also includes a plurality of second positioning elements (30), each of which corresponds to the third positioning hole (15), the fourth positioning hole (2100) and the fifth positioning hole (52). The second positioning elements (30) pass through the corresponding third positioning hole (15), the fourth positioning hole (2100) and the fifth positioning hole (52) and are riveted to the first tooling (10).
4. The press tool for a flow battery stack of claim 3, wherein, The third positioning hole (15) includes a first sub-hole and a second sub-hole. The first sub-hole is farther away from the second tooling (50) relative to the second sub-hole, and the cross-sectional area of the first sub-hole is greater than the cross-sectional area of the second sub-hole. The second positioning member (30) includes a second base (31) and a second positioning part (32). The second base (31) is riveted into the corresponding first sub-hole, and the second positioning part (32) passes through the corresponding second sub-hole, the fourth positioning hole (2100), and the fifth positioning hole (52).
5. The press tool for a flow battery stack of claim 4, wherein, The second positioning part (32) includes a first segment (321) and a second segment (322) connected together. The first segment (321) is connected between the second base (31) and the second segment (322), and the cross-sectional area of the second segment (322) gradually decreases in the direction away from the first segment (321). The maximum cross-sectional area of the second segment (322) is less than or equal to the minimum cross-sectional area of the first segment (321).
6. The press tool for a flow battery stack of claim 1, wherein, The pressing fixture for the flow battery stack further includes a first mold (60) and a second mold (80). The first mold (60) and the second mold (80) are respectively disposed on opposite sides of the first tooling (10) and the second tooling (50). The first mold (60) has a plurality of sixth positioning holes (61) along its circumference, and the second mold (80) has a plurality of seventh positioning holes (81). The pressing fixture for the flow battery stack also includes a plurality of third positioning elements (70), each of which corresponds one-to-one with the sixth positioning hole (61) and the seventh positioning hole (81). The third positioning elements (70) pass through the corresponding sixth positioning hole (61) and the seventh positioning hole (81), and all the third positioning elements (70) enclose to form a second positioning area (62). The second positioning area (62) is located between the first mold (60) and the second mold (80) and is used to position the first tooling (10) and the second tooling (50).
7. The press tool for a flow battery stack of claim 6, wherein, The outer edge of the first tooling (10) is provided with a plurality of first notches (16), and the outer edge of the second tooling (50) is provided with a plurality of second notches (53); The third positioning element (70) corresponds one-to-one with the first notch (16) and the second notch (53), and the third positioning element (70) is engaged with the corresponding first notch (16) and second notch (53).
8. The press tool for a flow battery stack of claim 6, wherein, The third positioning component (70) is detachable relative to the first mold (60) and the second mold (80); The pressing fixture for the flow battery stack also includes a pull handle (90), which is disposed on the first tooling (10) and is used to pull the first tooling (10), the second tooling (50) and the unit stack (2000) out from the outer edge when all the third positioning parts (70) disposed on the first mold (60) along the same outer edge are removed.
9. The press tool for a flow battery stack of claim 8, wherein, The pull handle (90) includes a first fixed seat (91), a second fixed seat (92) and a movable handle (93). The first fixed seat (91) and the second fixed seat (92) are mounted on the first tooling (10). The two opposite ends of the movable handle (93) are rotatably mounted on the first fixed seat (91) and the second fixed seat (92).
10. A pressing device for a flow battery stack, characterized in that The pressing device for the flow battery stack includes a machine base, a transfer assembly, and a pressing fixture for the flow battery stack as described in any one of claims 1 to 9. The transfer assembly is connected to the machine base. The pressing fixture for the flow battery stack further includes a first mold (60) and a second mold (80). The first mold (60) and the second mold (80) are respectively disposed on opposite sides of the first tooling (10) and the second tooling (50). The first mold (60) is fixed to the machine base. The second mold (80) is connected to the transfer assembly and can press against the second tooling (50) under the action of the transfer assembly.