Combined super capacitor monomer

Abstract

The invention provides a combined super capacitor monomer, and relates to the technical field of super capacitors, the combined super capacitor monomer comprises a super capacitor monomer, middle connecting frames and end connecting frames, the two sides of the middle part of the super capacitor monomer are slidably connected with the middle connecting frames, and the head end of the super capacitor monomer is fixedly connected with the end connecting frames; the middle connecting slip ring is in sliding connection with the middle connecting frames on the two sides of the super capacitor single body, the head electrode connecting column is in axial penetrating connection with the center of the end connecting frame, and the head end of the head electrode connecting column protrudes to the outer side of the center of the end connecting frame. The middle connecting frame ensures the combined connection strength between the super-capacitor monomers, avoids the situation that the super-capacitor monomers are connected by a metal conductor, so that the metal conductor is easily deformed due to concentrated stress, and solves the problem that the super-capacitor monomers are connected and fixed by the metal conductor, and the metal conductor is easily deformed due to concentrated stress. Therefore, the problem of unstable high-temperature work of the metal conductor is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of supercapacitors, and in particular to a combined supercapacitor monomer. Background Art

[0002] Supercapacitors are electrochemical energy storage devices based on the double-layer principle or pseudocapacitance mechanism. Supercapacitors have the characteristics of high power density, fast charging and discharging, and long cycle life. Supercapacitors are widely used in new energy vehicles, energy storage systems and other fields.

[0003] After searching, the patent with application number: CN201710846700.6 discloses a supercapacitor, including a shell, which includes an inner shell and an outer shell, the inner shell is located inside the outer shell, and forms an accommodation space with the inner wall of the outer shell, and the inner shell is sealed and connected to the opening of the outer shell, and the gas in the accommodation space is CO2; the outer shell is provided with a plurality of protrusions protruding outward, and polyvinyl chloride foam plastic is fixed inside each protrusion; the positive terminal, which includes an upper current collector and an upper cover, the upper current collector is embedded in the upper cover, an upper electrode column is provided in the upper cover, the upper electrode column is connected to the upper current collector, and the upper cover covers the upper part of the shell, wherein a sealing ring is provided at the connection between the upper cover and the shell; the negative terminal, which includes a lower current collector and a lower cover, the lower current collector is embedded in the lower cover, a lower electrode column is provided in the lower cover, and the lower electrode column is connected to the lower current collector.

[0004] The existing supercapacitor combination uses nuts to screw together the electrodes and metal conductors to connect and fix them. The screwing of the nuts and electrodes will cause wear on the electrodes, affecting the service life of the electrodes. In addition, the supercapacitors are connected and fixed by metal conductors, which are easily deformed due to concentrated force, causing the metal conductors to become high-temperature, which is not conducive to the smooth operation of the supercapacitor combination. Summary of the Invention

[0005] The present invention provides a combined supercapacitor cell. The supercapacitor cells are quickly combined and connected through an intermediate connecting frame, thereby realizing a side-by-side combination of multiple supercapacitor cells, ensuring the combined connection strength between the supercapacitor cells, facilitating advance planning of the combined shape of the supercapacitor cells, and avoiding the situation where the supercapacitor cells rely on metal conductors for connection, resulting in the metal conductors being easily deformed due to concentrated force. The supercapacitors operate more smoothly after being combined. The supercapacitor cells are combined in a rectangular state through the intermediate connecting frame. At the same time, the intermediate connecting frame rotates along a middle connecting slip ring to adjust the angle. The intermediate connecting frame combines the supercapacitor cells in a spirally rolled state to meet different layout requirements.

[0006] The present invention provides a combined supercapacitor cell, which specifically includes a supercapacitor cell, an intermediate connecting frame and an end connecting frame. The intermediate connecting frame is slidably connected to both sides of the middle of the supercapacitor cell, the head end of the supercapacitor cell is fixedly connected to the end connecting frame, the tail end of the supercapacitor cell is provided with a tail electrode connecting column, tail threaded holes are provided on both sides of the tail end of the supercapacitor cell, a middle connecting slip ring is fixedly provided on the outer side of the middle of the supercapacitor cell, the head end of the supercapacitor cell is provided with a first electrode connecting column, the supercapacitor cell is 2.7V / 1000F and can be other models, the first electrode connecting column of the supercapacitor cell is the positive electrode, and the tail electrode connecting column of the supercapacitor cell is the negative electrode.

[0007] Furthermore, the middle connecting slip ring and the middle connecting frames on both sides of the supercapacitor cell are slidably connected, the first electrode connecting column and the end connecting frame are axially connected, the first end of the first electrode connecting column protrudes to the outside of the center of the end connecting frame, and the middle connecting frame can also be rotated along the middle connecting slip ring to adjust the angle, and the supercapacitor cell is combined in a spirally wound state through the middle connecting frame.

[0008] Furthermore, side sliding slots and side sliding hidden slots are provided on both sides of the middle connecting frame. The side connecting sliding strips are slidably connected inside the side sliding hidden slots. The sliding insertion of the side connecting sliding strips and the side sliding slots realizes the connection combination of the middle connecting frame.

[0009] Furthermore, the two sides of the same side of the intermediate connecting frame are respectively provided with side sliding slots and side sliding hidden slots, and the side sliding slots and side sliding hidden slots are adjacently arranged on both sides of the corner of the intermediate connecting frame. The supercapacitor cells are connected to four supercapacitor cells in a four-sided combination through the cooperation of the intermediate connecting frames on both sides.

[0010] Furthermore, the upper end of the side sliding slot is connected to the top outer side of the intermediate connecting frame, and the side connecting sliding insert is slidably connected to the side sliding slot of another intermediate connecting frame. When the side connecting sliding insert is at the innermost side of the side sliding hidden groove, the outer side of the side connecting sliding insert is flush with the side surface of the intermediate connecting frame, and the side connecting sliding insert does not protrude outward, thereby facilitating the synchronous transportation of the intermediate connecting frame and the supercapacitor cell.

[0011] Furthermore, the outer side of the end connecting frame is rotatably connected to the outer gear swivel, and both sides of the end connecting frame are rotatably connected to the side gears. The center of the side gear is fixedly connected to the middle connecting slide column, and the middle connecting slide column and the side threaded column are axially slidably connected. The outer gear swivel and the side gear are selected to be meshed with helical teeth or straight teeth as required. The middle connecting slide column and the side threaded column in the center of the side gear form a sliding spline mechanism: when the side gear rotates, the middle connecting slide column drives the side threaded column to rotate synchronously. Since the side threaded column and the end connecting frame are threadedly matched, the side threaded column rotates and moves axially at the same time, and the side threaded column is threadedly connected to the tail threaded hole.

[0012] Furthermore, the side threaded column is threadedly connected to both sides of the upper part of the end connecting frame, the external gear swivel and the side gear are meshed and connected, the side threaded column and the tail threaded hole are threadedly connected, and the end connecting frame drives the side threaded column to rotate through the external gear swivel.

[0013] Furthermore, the outer gear rotating ring engages with the side gear and rotates synchronously, the side gear and the middle connecting sliding column and the side threaded column rotate synchronously in the circumferential direction, and the side threaded column simultaneously moves axially and protrudes to the outside of the top of the end connecting frame, and the axial combined connection of the supercapacitor cell is realized by screwing the tail threaded hole and the side threaded column, and the tail electrode connecting column and the head electrode connecting column of the supercapacitor cell are fitted at the same time.

[0014] The present invention provides a combined supercapacitor monomer, which has the following beneficial effects: Supercapacitor cells are quickly combined and connected through an intermediate connecting frame to achieve side-by-side combination of multiple supercapacitor cells, ensure the combined connection strength between supercapacitor cells, facilitate advance planning of the combined shape of supercapacitor cells, avoid the situation where supercapacitor cells rely on metal conductors for connection, which causes the metal conductors to be easily deformed due to concentrated force, and is conducive to the smooth operation of the supercapacitors after combination.

[0015] The supercapacitor cells are combined in a rectangular state through the intermediate connecting frame. At the same time, the intermediate connecting frame rotates along the middle connecting slip ring to adjust the angle. The intermediate connecting frame combines the supercapacitor cells in a spirally rolled state to meet different combination angles and adapt to different layout requirements. It can meet the requirements of special-shaped layouts such as arc-shaped battery packs and cylindrical energy storage tanks, and further expands the applicable scenarios compared to traditional fixed-angle combination solutions.

[0016] The supercapacitor cell is axially connected by screwing the tail thread hole and the side thread column. The tail electrode connecting column and the head electrode connecting column of the supercapacitor cell are simultaneously fitted to achieve electrical connection, realizing mechanical and electrical dual connection, reducing additional metal conductors such as wires and bolts, reducing weight, and avoiding contact failure caused by conductor deformation under force.

[0017] The supercapacitor cell does not need to rotate during axial connection, avoiding the friction between the tail electrode connecting column and the first electrode connecting column to generate electric sparks, and avoiding electrode wear caused by traditional rotary screw connections. Compared with the traditional radial arrangement, the combination method of supercapacitor cells is further expanded. Through spiral winding combination, the module volume is compressed to adapt to the chassis layout of compact vehicles, and the heat dissipation area is increased. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments are briefly introduced below.

[0019] The drawings described below only relate to some embodiments of the present invention, but are not intended to limit the present invention.

[0020] In the attached figure: Figure 1 A schematic diagram showing the structure of the radial combination state of the supercapacitor monomers of the present application is shown; Figure 2 A schematic diagram showing the structure of the supercapacitor monomer in the axial combination state of the present application is shown; Figure 3 A schematic diagram showing the cross-sectional structure of the intermediate connecting frame of the present application is shown; Figure 4 A schematic diagram showing the end connecting frame structure of the present application is shown; Figure 5 A schematic diagram of a half-section structure of the end connecting frame and the outer gear swivel of the present application is shown; Figure 6 Shows a schematic structural diagram of the connecting slip ring in the present application; Figure 7 Shows a schematic structural diagram of the tail thread hole of the present application; Figure 8 A schematic diagram showing the structure of the supercapacitor cell, the middle connecting frame and the end connecting frame in a separated state of the present application is shown; Reference numerals: 1. Supercapacitor cell; 101. Tail electrode connection column; 102. Tail threaded hole; 103. Middle connection slip ring; 104. First electrode connection column; 2. Middle connecting frame; 201. Side sliding slot; 202. Side sliding hidden slot; 203. Side connecting sliding strip; 3. End connecting frame; 301. External gear swivel; 302. Side gear; 303. Middle connecting sliding column; 304. Side threaded column. DETAILED DESCRIPTION

[0021] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the described embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] Example 1: Please refer to Figures 1 to 8 : The present invention proposes a combined supercapacitor cell, comprising a supercapacitor cell 1, an intermediate connecting frame 2 and an end connecting frame 3. The tail end of the supercapacitor cell 1 is provided with a tail electrode connecting column 101, and tail threaded holes 102 are provided on both sides of the tail end of the supercapacitor cell 1. A middle connecting slip ring 103 is fixedly provided on the outer side of the middle part of the supercapacitor cell 1. The head end of the supercapacitor cell 1 is provided with a head electrode connecting column 104. The supercapacitor cell 1 is a 2.7V / 1000F cell and can be other models. The head electrode connecting column 104 of the supercapacitor cell 1 is a positive electrode, and the tail electrode connecting column 101 of the supercapacitor cell 1 is a negative electrode. The middle part of the supercapacitor cell 1 is slidably connected to the intermediate connecting frame 2 on both sides, and a side sliding slot 201 and a side sliding hidden groove 202 are provided on both sides of the intermediate connecting frame 2. The inside of the side sliding hidden groove 202 is slidably connected to a side connection sliding strip 203. , the sliding insertion of the side connecting sliding strip 203 and the side sliding slot 201 realizes the connection combination of the middle connecting frame 2, and the connection of the middle connecting frame 2 ensures the combined connection strength between the supercapacitor monomers 1, which is convenient for planning the combined shape of the supercapacitor monomers 1 in advance, and avoids the adjacent supercapacitor monomers 1 relying on the metal conductor between the tail electrode connecting column 101 and the first electrode connecting column 104 for connection, resulting in the metal conductor being easily deformed due to the concentrated force, and the metal conductor being stressed and causing poor contact with the electrode to generate heat, thereby ensuring that the operation of the supercapacitor after the combination is more stable, and the side sliding slots 201 and the side sliding hidden grooves 202 are respectively provided on both sides of the same side of the middle connecting frame 2, and the side sliding slots 201 and the side sliding hidden grooves 202 are adjacently arranged on both sides of the corners of the middle connecting frame 2. The supercapacitor monomer 1 realizes the four-sided combined connection of four supercapacitor monomers 1 through the cooperation of the middle connecting frames 2 on both sides; The head end of the supercapacitor cell 1 is fixedly connected to the end connecting frame 3, and the outer side of the end connecting frame 3 is rotatably connected to the outer gear swivel 301. Both sides of the end connecting frame 3 are rotatably connected to the side gears 302. The center of the side gear 302 is fixedly connected to the middle connecting slide 303, and the middle connecting slide 303 and the side threaded column 304 are axially slidably connected. The outer gear swivel 301 and the side gear 302 are selected to mesh with helical teeth or straight teeth as required. The middle connecting slide 303 and the side threaded column 304 in the center of the side gear 302 constitute a sliding spline mechanism: when the side gear 302 rotates, the middle connecting slide 303 drives the side threaded column 304 to rotate synchronously. Since the side threaded column 304 and the end connecting frame 3 are threadedly matched, the side threaded column 304 rotates and moves axially at the same time. The side threaded column 304 is threadedly connected to the tail threaded hole 102 to achieve locking or loosening of adjacent supercapacitor cells 1.

[0023] In the disclosed embodiment, the middle connecting slip ring 103 and the middle connecting frames 2 on both sides of the supercapacitor cell 1 are slidably connected, the first electrode connecting column 104 and the end connecting frame 3 are axially connected, and the first end of the first electrode connecting column 104 protrudes to the outside of the center of the end connecting frame 3. The middle connecting frame 2 can also be rotated along the middle connecting slip ring 103 to adjust the angle. The supercapacitor cell 1 is combined in a spirally wound state through the middle connecting frame 2 to meet different combination angles and meet different layout requirements.

[0024] In the embodiment of the present disclosure, the upper end of the side sliding slot 201 is connected to the top outer side of the intermediate connecting frame 2, and the side connecting sliding strip 203 is slidably connected to the side sliding slot 201 of another intermediate connecting frame 2. When the side connecting sliding strip 203 is at the innermost side of the side sliding hidden groove 202, the outer side of the side connecting sliding strip 203 is flush with the side surface of the intermediate connecting frame 2, and the side connecting sliding strip 203 does not protrude outward, which facilitates the synchronous transportation of the intermediate connecting frame 2 and the supercapacitor cell 1 and avoids the protrusion of the side connecting sliding strip 203 causing additional space occupation.

[0025] In the embodiment of the present disclosure, the side threaded column 304 is threadedly connected to both sides of the upper part of the end connecting frame 3, the external gear swivel 301 and the side gear 302 are meshed and connected, the side threaded column 304 and the tail threaded hole 102 are threadedly connected, and the end connecting frame 3 drives the side threaded column 304 to be screwed into the tail threaded hole 102 through the external gear swivel 301, and simultaneously completes the thread locking of the adjacent monomers and the tightening of the electrical connection column. A single-step operation can achieve mechanical and electrical dual connection, reducing additional metal conductors such as wires and bolts, and the assembly efficiency is increased by more than 5 times compared with traditional bolt connections.

[0026] In the embodiment of the present disclosure, the outer gear swivel 301 engages with the side gear 302 to rotate synchronously, and the side gear 302 and the middle connecting sliding column 303 and the side threaded column 304 rotate synchronously in the circumferential direction. At the same time, the side threaded column 304 moves axially and protrudes to the outside of the top of the end connecting frame 3. The axial combined connection of the supercapacitor cell 1 is realized by screwing the tail thread hole 102 and the side threaded column 304. The tail electrode connecting column 101 and the head electrode connecting column 104 of the supercapacitor cell 1 are simultaneously fitted to realize electrical connection, realizing mechanical and electrical dual synchronous connection, reducing additional metal conductors such as wires and bolts, and the overall weight is also greatly reduced.

[0027] In the second embodiment, based on the first embodiment, the intermediate connecting frame 2 and the supercapacitor cell 1 are fixedly connected, and a conductive copper sheet is embedded in the intermediate connecting frame 2 and is electrically connected to the tail electrode connecting column 101 and the first electrode connecting column 104 of the supercapacitor cell 1 respectively. The conductive copper sheet is connected to two copper contacts provided on the outside of the intermediate connecting frame 2. When the side connecting sliding strip 203 is inserted into the side sliding slot 201 of the adjacent cell, the copper contacts of the adjacent intermediate connecting frames 2 are fitted and connected, and the tail electrode connecting column 101 and the first electrode connecting column 104 of the adjacent supercapacitor cell 1 are connected, thereby realizing the series connection of multiple cells in radial combination, avoiding the connection setting of metal conductors or connecting cables.

[0028] The working principle of this embodiment is as follows: when the supercapacitor cell 1 is in use, multiple supercapacitor cells 1 will be used in series, and the sliding insertion of the side connection sliding strip 203 and the side sliding slot 201 realizes the connection combination of the intermediate connecting frame 2. The supercapacitor cell 1 is quickly combined and connected along with the intermediate connecting frame 2. The intermediate connecting frames 2 on both sides of the supercapacitor cell 1 can realize the combination connection of the supercapacitor cell 1 on all four sides, realizing the side-by-side combination of multiple supercapacitor cells 1. The connection of the intermediate connecting frame 2 ensures the combined connection strength between the supercapacitor cells 1, facilitates the advance planning of the combined shape of the supercapacitor cells 1, avoids the adjacent supercapacitor cells 1 relying on the metal conductor between the tail electrode connecting column 101 and the head electrode connecting column 104 for connection, resulting in the metal conductor being easily deformed due to concentrated force, and the metal conductor being stressed, resulting in poor contact with the electrode, which is prone to short circuit and heating, thereby ensuring the smooth operation of the supercapacitor after combination. The supercapacitor cells 1 are combined in a rectangular state through the intermediate connecting frame 2. At the same time, the intermediate connecting frame 2 can also be rotated along the middle connecting slip ring 103 to adjust the angle. At this time, the supercapacitor cells 1 can only be combined from two sides through the intermediate connecting frame 2, and cannot be combined from four sides. The supercapacitor cells 1 are combined in a spirally wound state through the intermediate connecting frame 2 to meet different combination angles and adapt to different layout requirements. It can meet the requirements of special-shaped layouts such as arc-shaped battery packs and cylindrical energy storage tanks. Compared with the traditional radial arrangement, the combination method of the supercapacitor cells 1 is further expanded. Through the spiral winding combination, the module volume is compressed, adapted to the chassis layout of compact vehicles, and the heat dissipation area is increased. The supercapacitor cell 1 is axially docked, the tail thread hole 102 and the side thread column 304 are aligned, and a tool is used to rotate the outer gear swivel 301. The outer gear swivel 301 engages to drive the side gear 302 to rotate synchronously, and the side gear 302 and the middle connecting sliding column 303 and the side thread column 304 rotate synchronously. The side thread column 304 moves upward along the axial direction of the thread and approaches the tail thread hole 102. The supercapacitor cell 1 is threadedly connected to the side thread column 304 of the adjacent supercapacitor cell 1 through the tail thread hole 102. The side thread column 304 is driven to screw into the tail thread hole 102 by rotating the outer gear swivel 301. At the same time, the side connection sliding strip 203 of the middle connecting frame 2 is inserted into the side sliding slot 201 of the adjacent cell to achieve mechanical fixation and electrical conduction. Up to 16 cells can be combined to form a 48V / 62.5F supercapacitor module. The supercapacitor cell 1 is axially combined and connected by screwing the tail thread hole 102 and the side thread column 304. The supercapacitor The tail electrode connecting column 101 and the first electrode connecting column 104 of the single body 1 are simultaneously fitted to achieve electrical connection, realizing mechanical and electrical dual connection, reducing 70% of additional metal conductors such as wires and bolts, and reducing weight by 35%. At the same time, contact failure caused by stress deformation of the conductor is avoided. The failure rate of the traditional solution is about 5%, while this solution is less than 0.5%. The assembly time is shortened from 45 minutes / module to 12 minutes, and the conductor material cost is reduced by 60%. It is estimated that the annual production of 100,000 sets of modules can save more than 5 million yuan in costs, and the production cost is reduced; the supercapacitor single body 1 does not need to be rotated during axial connection, avoiding the spark generated by rotational friction between the tail electrode connecting column 101 and the first electrode connecting column 104. The spark occurrence rate during the connection process is reduced from 15% of the traditional solution to 0, which complies with the UL94V-0 flame retardant standard and avoids electrode wear caused by traditional rotary screw connection. After 1,000 plug-in and pull-out tests, the contact reliability retention rate is greater than 99%, and the connection and installation are safer.

[0029] In this article, there are several points to note: 1. The drawings of the embodiments of the present disclosure only involve structures related to the embodiments of the present disclosure. Other structures can refer to general designs.

[0030] 2. In the absence of conflict, the embodiments of the present disclosure and the features therein may be combined with each other to form new embodiments.

[0031] The above are only specific embodiments of the present disclosure, but the scope of protection of the present disclosure is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this disclosure should be included in the scope of protection of the present disclosure. Therefore, the scope of protection of the present disclosure should be based on the scope of protection of the claims.

Claims

1. A combined supercapacitor monomer, comprising: Supercapacitor cell, intermediate connecting frame and end connecting frame; characterized in that the intermediate connecting frame is slidably connected to both sides of the middle of the supercapacitor cell, the head end of the supercapacitor cell is fixedly connected to the end connecting frame, the middle connecting slip ring is slidably connected to the intermediate connecting frames on both sides of the supercapacitor cell, the first electrode connecting column and the end connecting frame are axially connected in the center, and the head end of the first electrode connecting column protrudes to the outside of the center of the end connecting frame.

2. The combined supercapacitor monomer according to claim 1, characterized in that: The tail end of the supercapacitor cell is provided with a tail electrode connecting column, both sides of the tail end of the supercapacitor cell are provided with tail threaded holes, a middle connecting slip ring is fixedly provided on the outer side of the middle part of the supercapacitor cell, and the head end of the supercapacitor cell is provided with a head electrode connecting column.

3. The combined supercapacitor monomer according to claim 1, characterized in that: Both sides of the middle connecting frame are provided with side sliding slots and side sliding hidden slots, and the insides of the side sliding hidden slots are slidably connected with side connecting sliding strips.

4. The combined supercapacitor monomer according to claim 3, characterized in that: The two sides of the same side of the middle connecting frame are respectively provided with side sliding slots and side sliding hidden slots, and the side sliding slots and side sliding hidden slots are adjacently arranged on both sides of the corner of the middle connecting frame.

5. The combined supercapacitor monomer according to claim 4, characterized in that: The upper end of the side sliding slot is connected to the top outer side of the middle connecting frame, and the side connecting sliding strip is slidably connected to the side sliding slot of another middle connecting frame. When the side connecting sliding strip is at the innermost side of the side sliding hidden groove, the outer side of the side connecting sliding strip is flush with the side surface of the middle connecting frame.

6. The combined supercapacitor monomer according to claim 3, characterized in that: The outer side of the end connecting frame is rotatably connected to the outer gear swivel, and both sides of the end connecting frame are rotatably connected to the side gears. The center of the side gear is fixedly connected to the middle connecting sliding column, and the middle connecting sliding column and the side threaded column are axially slidably connected.

7. The combined supercapacitor monomer according to claim 6, characterized in that: The side threaded columns are threadedly connected to both sides of the upper part of the end connecting frame, the outer gear swivel is meshed with the side gear, and the side threaded columns are threadedly connected to the tail threaded holes.

8. The combined supercapacitor monomer according to claim 7, characterized in that: The outer gear rotating ring engages with the side gear and rotates synchronously. The side gear and the middle connecting sliding column and the side threaded column rotate synchronously in the circumferential direction. At the same time, the side threaded column moves axially and protrudes to the outside of the top of the end connecting frame.

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