Super lithium capacitor module for energy recovery

Abstract

The utility model provides a super lithium capacitor module for energy recovery, which comprises a monomer capacitor bank, the monomer capacitor bank comprises a plurality of capacitor monomers, and monomer foam is arranged between every two adjacent capacitor monomers; end plates are arranged at the front end and the rear end of the single capacitor bank, fixing plates are arranged above and below the single capacitor bank, side plates are arranged on the left side and the right side of the single capacitor bank, and the end plates are detachably connected with the side plates, the end plates are detachably connected with the fixing plates, and the fixing plates are detachably connected with the side plates; the side plate is provided with a series line bank electrically connected with a wiring terminal of the capacitor monomer, one end, facing the end plate, of the side plate is provided with a lead-out electrode line bank electrically connected with the series line bank, and the side plate is provided with an insulating plate at a position corresponding to the series line bank. The super lithium capacitor module for energy recovery has the advantages of being simple in structure, low in cost, easy to assemble and high in overall stability, reliability and safety.

Description

TECHNICAL FIELD

[0001] The utility model belongs to energy storage equipment technical field especially, it is related to a super lithium capacitor module for energy recovery. BACKGROUND

[0002] Super lithium capacitor module (Super Lithium Capacitor Module, SLCM for short) is a kind of hybrid energy storage technology combining the advantages of super capacitor (super capacitor) and lithium ion battery.Super capacitor module is a new type of power energy storage device, with high power density, long life, high safety and wide working temperature range, and is widely used in new energy vehicles, rail transit, smart grid, renewable energy power generation and other fields.But due to the low working voltage of single super capacitor monomer, to meet the high voltage and large capacity demand of practical application, usually need to connect multiple super capacitor monomers in series and parallel to form a module, and the rationality of module structure design will directly affect the performance of module.

[0003] The existing super capacitor module still has some problems, such as easy to break, poor protection performance, unstable capacitor monomer fixation, poor heat dissipation effect, etc.For example, the existing soft package super capacitor is more difficult to form group due to the structure of hetero side tab, and the capacitor monomer inside the module is also easy to produce displacement and collision in vibration environment, resulting in loose connection, short circuit and leakage, etc., which affects the reliability and service life of the module.In terms of thermal balance, lithium ion capacitor module will generate a lot of heat during high-power charging and discharging process, and effective heat dissipation is needed to ensure the performance of single body, but the heat dissipation design of existing module is not perfect, and it cannot meet the heat dissipation demand under high-power working condition.Therefore, the existing lithium ion capacitor module still has the problems of poor heat dissipation efficiency and structural stability when applied, which is not conducive to the stable and reliable operation of energy storage system. UTILITY MODEL CONTENTS

[0004] Therefore, the utility model aims at providing a super lithium capacitor module for energy recovery to solve the problem of poor heat dissipation efficiency and structural stability of lithium ion capacitor module.

[0005] To achieve the above purpose, the technical scheme of the utility model is as follows:

[0006] The utility model provides a kind of super lithium capacitor module for energy recovery, including monomer capacitor group, the monomer capacitor group includes several capacitor monomers, and single-cell foam is equipped between two adjacent capacitor monomers;The front and rear ends of the monomer capacitor group are provided with end plate, and the upper and lower of monomer capacitor group are provided with fixed plate, and the left and right sides of monomer capacitor group are provided with side plate, and the detachable connection between the end plate and side plate, the end plate and fixed plate, the fixed plate and side plate;The side plate is provided with series connection wiring row electrically connected with capacitor monomer terminal, and the end of side plate towards end plate is provided with lead-out pole connection row electrically connected with series connection wiring row, and the position of series connection wiring row on the side plate is provided with insulating plate;The position of monomer capacitor group on the fixed plate is provided with ventilation slot, and the left and right sides of fixed plate are correspondingly provided with bending part, and there is wire slot for accommodating wire harness between the bending part and side plate, and the insulating plate is detachably mounted on the bending part.

[0007] Further, the end plate and side plate, the end plate and fixed plate, and the fixed plate and side plate are connected by screws.

[0008] Further, a plurality of air holes are provided on the fixed plate corresponding to the position of the ventilation slot.

[0009] Further, the ventilation slot includes a middle ventilation slot provided in the middle of the fixed plate and two outer ventilation slots provided on the left and right sides of the fixed plate, the length directions of the middle ventilation slot and the outer ventilation slots are the same, the middle ventilation slot is provided corresponding to the middle of the capacitor monomer, and the outer ventilation slots are provided corresponding to the edges of the capacitor monomer.

[0010] Further, the air holes include middle holes and outer holes, the middle holes are provided corresponding to the middle ventilation slot and are in communication with the middle ventilation slot, and the length directions of the middle holes are perpendicular to the length direction of the middle ventilation slot; the outer holes are provided corresponding to the outer ventilation slots and are in communication with the outer ventilation slots, and the length directions of the outer holes are the same as the length direction of the outer ventilation slots.

[0011] Further, a limiting foam is provided between the fixed plate and the monomer capacitor group, and at least two limiting foams are provided corresponding to the left and right sides of the monomer capacitor group.

[0012] Further, a lead-out pole base for mounting the lead-out pole connection row is provided on the end plate, and the lead-out pole base is detachably mounted on the end plate.

[0013] Further, a positioning groove capable of cooperating with the capacitor monomer is provided on the side of the side plate towards the monomer capacitor group.

[0014] Further, a PI film is provided on the surface of the insulating plate, and a ventilation gap exists between the insulating plate and the series connection wiring row.

[0015] Further, the end plate and the monomer capacitor group are provided with an insulating pad plate.

[0016] Compared with the prior art, the super lithium capacitor module for energy recovery has the following advantages:

[0017] The super lithium capacitor module for energy recovery has the advantages of simple structure, low cost, easy assembly, high overall stability, reliability and safety.The combination structure reduces the assembly and production difficulty of the capacitor module, and is conducive to improving the production and processing efficiency of the capacitor module. BRIEF DESCRIPTION OF DRAWINGS

[0018] The drawings constituting a part of the present application are used to provide a further understanding of the present application, and the illustrative embodiments of the present application and the description thereof are used to explain the present application, and do not constitute an improper limitation on the present application.

[0019] Figure 1 The structure diagram of the super lithium capacitor module for energy recovery according to the embodiment of the present application is shown in the figure.

[0020] Figure 2 The exploded view is shown in the figure. Figure 1

[0021] Explanation of reference signs:

[0022] 1, end plate; 2, side plate; 3, fixed plate; 4, insulating plate; 5, middle through slot; 6, outer through slot; 7, middle opening; 8, outer opening; 9, bending part; 10, lead-out pole terminal row; 11, limiting foam; 12, monomer capacitor group; 13, insulating pad plate; 14, positioning groove; 15, series connection terminal row; 16, lead-out pole base. DETAILED DESCRIPTION

[0023] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0024] In the description of the utility model, it is necessary to understand that the orientation or positional relation indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is the orientation or positional relation based on the orientation or positional relation shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model. In addition, the terms "first", "second" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features limited by "first", "second" and the like can explicitly or implicitly include one or more of the features. In the description of the utility model, the meaning of "a plurality of" is two or more, unless otherwise specified.

[0025] In the description of the utility model, it should be explained that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected, it can be mechanical connection, or electrical connection, it can be directly connected, or indirectly connected through intermediate medium, it can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood through specific circumstances.

[0026] The utility model will be described in detail below with reference to the drawings and in combination with embodiments.

[0027] A kind of super lithium capacitor module for energy recovery, as shown in Figure 1 And Figure 2 It includes monomer capacitor group 12, the monomer capacitor group 12 includes several capacitor monomers (not marked in drawing), and monomer foam (not marked in drawing) is equipped between adjacent two capacitor monomers;The front and rear ends of the monomer capacitor group 12 are equipped with end plate 1, and the upper and lower of monomer capacitor group 12 are equipped with fixed plate 3, and the left and right sides of monomer capacitor group 12 are equipped with side plate 2, and the end plate 1 and side plate 2, the end plate 1 and fixed plate 3, fixed plate 3 and side plate 2 between are detachably connected;The side plate 2 is equipped with series connection wiring row 15 electrically connected with capacitor monomer terminal (not marked in drawing), and the end of side plate 2 towards end plate 1 is equipped with lead-out pole connection row 10 electrically connected with series connection wiring row 15, and the position of series connection wiring row 15 on the side plate 2 is equipped with insulating plate 4;The position of monomer capacitor group 12 on the fixed plate 3 is equipped with ventilation groove, and the left and right sides of fixed plate 3 are correspondingly equipped with bending part 9, and there is wire slot (not marked in drawing) for accommodating fixed collection wire harness between the bending part 9 and side plate 2, and the insulating plate 4 is detachably mounted on the bending part 9.

[0028] Specifically, the end plate 1 and the side plate 2, the end plate 1 and the fixed plate 3, and the fixed plate 3 and the side plate 2 are connected by screws. Correspondingly, the end plate 1 and the side plate 2 can be provided with threaded holes matched with the screws, and the fixed plate 3 and the side plate 2 can be provided with mounting holes matched with the screws. By setting screw mounting positions on the left and right sides of the fixed plate 3, the front and rear ends of the side plate 2, and the upper and lower and left and right of the fixed plate 3, the stable connection between the end plate 1 and the side plate 2, the end plate 1 and the fixed plate 3, and the fixed plate 3 and the side plate 2 can be achieved, and a stable six-face frame structure is formed. The single capacitor group 12 is wrapped after being stacked, thereby realizing the protection and limiting of the single capacitor group 12, improving the overall stability of the capacitor module, and avoiding the displacement and collision of the capacitor single in the vibration environment.

[0029] In actual application, the bending part 9 is an L-shaped structure, the horizontal end of the bending part 9 is fixed on the fixed plate 3, and the vertical end is arranged towards the middle part of the side plate 2. The insulating plate 4 is detachably mounted on the vertical end of the bending part 9. Meanwhile, a wire tying hole (not marked in the figure) can also be arranged on the bending part 9, which is communicated with the wire slot, so as to facilitate the operator to install the wire harness tie according to the need, so that the wire harness can be more stably assembled in the wire slot, thereby realizing the protection and limiting of the wire harness.

[0030] Preferably, a plurality of air holes are arranged on the fixed plate 3 at intervals corresponding to the ventilation slot, and the air holes are communicated with the ventilation slot. Exemplarily, the air holes can be arranged at intervals of four, six or more. By arranging the ventilation slot on the fixed plate 3, a ventilation and heat dissipation cavity can be formed between the fixed plate 3 and the single capacitor group 12, ensuring the heat dissipation effect of the single capacitor group 12. At the same time, by arranging a plurality of air holes, the weight of the fixed plate 3 can be reduced, and the heat dissipation effect of the single capacitor group 12 can be further improved.

[0031] Preferably, the ventilation slot includes a middle slot 5 arranged in the middle part of the fixed plate 3 and two outer slots 6 arranged on the left and right sides of the fixed plate 3 correspondingly, the length directions of the middle slot 5 and the outer slot 6 are the same, the middle slot 5 is arranged corresponding to the middle part of the single capacitor, and the outer slot 6 is arranged corresponding to the edge of the single capacitor.

[0032] Exemplarily, the air holes include middle holes 7 and outer holes 8, the middle holes 7 are arranged corresponding to the middle through grooves 5 and communicate with the middle through grooves 5, the length direction of each middle hole 7 is perpendicular to the length direction of the middle through groove 5; the outer holes 8 are arranged corresponding to the outer through grooves 6 and communicate with the outer through grooves 6, the length direction of each outer hole 8 is the same as the length direction of the outer through groove 6. By arranging the ventilation grooves and the air holes in the above manner, the airflow flow efficiency can be maximized, which is conducive to improving the heat dissipation efficiency of the capacitor unit and the terminal thereof, and avoiding the thermal concentration of the capacitor unit group 12.

[0033] In actual application, by arranging a middle through groove 5 and two outer through grooves 6 on the fixing plate 3, cooperating with the middle holes 7 arranged corresponding to the middle through groove 5 and the outer holes 8 arranged corresponding to the outer through grooves 6 on the fixing plate 3, not only the structural weight of the fixing plate 3 can be reduced to realize the lightweight design of the module, but also the ventilation and heat dissipation effect of the fixing plate 3 can be improved, and the air cooling heat dissipation effect of the module can be effectively enhanced by forming the upper and lower ventilation groove structures to meet the heat dissipation demand under high power working condition. In addition, by arranging a middle through groove 5 and two outer through grooves 6, the fixing plate 3 in π shape can be formed, which is conducive to improving the structural strength and stability of the fixing plate 3 to ensure that the fixing plate 3 can continuously and stably protect the capacitor unit group 12, thereby being conducive to improving the reliability and stability of the module as a whole.

[0034] Preferably, a limiting foam 11 is arranged between the fixing plate 3 and the capacitor unit group 12, and the limiting foam 11 is arranged at least two corresponding to the left and right sides of the capacitor unit group 12. Exemplarily, two or more limiting foams 11 can be arranged corresponding, and the limiting foam 11 can be made of polyurethane or other insulating fireproof material.

[0035] In actual application, the inter-capacitor foam can be made of insulating material such as chloroprene rubber (CR), and the limiting foam 11 can play a good buffering protection and limiting effect on the capacitor unit group 12 as a whole. By arranging the inter-capacitor foam, the capacitor unit can be well buffered and protected, thereby realizing multiple protection of the capacitor unit group 12, which is conducive to improving the safety and reliability of the capacitor unit group 12 in use and improving the anti-shock performance of the capacitor module as a whole.

[0036] Preferably, the end plate 1 is provided with an outgoing pole base 16 for mounting the outgoing pole terminal row 10, and the outgoing pole base 16 is detachably mounted on the end plate 1. Exemplarily, the outgoing pole base 16 can be mounted and fixed on the end plate 1 by screws, and the outgoing pole bases 16 on the two side plates 2 are arranged staggered, that is, the outgoing pole base 16 is arranged at the front end of one side plate 2, and the outgoing pole base 16 on the other side plate 2 is arranged at the rear end thereof, so as to facilitate subsequent wiring and connection.

[0037] In practical application, the series connection wire row 15 and the lead-out pole wire row 10 can adopt copper rows of red copper material, the series connection wire row 15 can be fixed on the side plate 2 through screws, the side plate 2 is provided with an assembly hole for installing the series connection wire row 15, one end of the lead-out pole wire row 10 is fixed on the side plate 2 through screws and is electrically connected with the series connection wire row 15, and the other end can be fixed on the lead-out pole base 16 through screws. By adopting the detachable mode to install the lead-out pole base 16, the series connection wire row 15 and the lead-out pole wire, the maintainability of the capacitor module is improved, and the assembly and maintenance difficulty of the capacitor module is reduced.

[0038] Preferably, the side plate 2 is provided with a positioning groove 14 capable of cooperating with the capacitor monomer on the side facing the monomer capacitor group 12. Exemplarily, a plurality of positioning grooves 14 are arranged along the length direction of the side plate 2, and the positioning grooves 14 are arranged one by one corresponding to the capacitor monomers. By arranging the positioning grooves 14, the left and right side edges of the capacitor monomers can be well limited, and the spacing of the capacitor monomers can be realized by cooperating with the foam between the monomers, thereby improving the stability of the capacitor monomers in the capacitor module.

[0039] Preferably, the surface of the insulating plate 4 is provided with a PI film, and there is a ventilation gap between the insulating plate 4 and the series connection wire row 15, so as to realize effective heat dissipation of the series connection wire row 15. Exemplarily, the insulating plate 4 can adopt epoxy resin, and the PI film (polyimide film) can be pasted on the side of the insulating plate 4 facing the series connection wire row 15, which is conducive to improving the insulation effect of the insulating plate 4 and forming at least two layers of insulation structure outside the series connection wire row 15.

[0040] In actual use, the insulating plate 4 can be installed on the bent portion 9 through a plastic rivet, and the bent portion 9 and the insulating plate 4 are both provided with mounting holes for mounting the plastic rivet. By arranging the insulating plate 4 outside the side plate 2, the series connection wire row 15 on the side plate 2 can be well insulated and protected.

[0041] Preferably, an insulating pad 13 is arranged between the end plate 1 and the monomer capacitor group 12. Exemplarily, the insulating pad 13 can be made of insulating materials such as PVC, and the electrical insulation between the end plate 1 and the monomer capacitor group 12 can be realized by arranging the insulating pad 13.

[0042] The super lithium capacitor module for energy recovery has the advantages of simple structure, low cost, easy assembly, high overall stability, reliability and safety. By adopting the combined structure, the assembly and production difficulty of the capacitor module is reduced, which is conducive to improving the production and processing efficiency of the capacitor module. At the same time, by arranging the ventilation groove structure on the fixed plate, the heat dissipation effect of the capacitor module can be ensured, and the energy recovery requirement can be met.

[0043] The above merely describes preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An ultralithium capacitor module for energy recovery, characterized by: The application relates to a capacitor module, which comprises a single capacitor group (12) comprising a plurality of capacitor units, and a foam interposed between any two adjacent capacitor units; the single capacitor group (12) is provided with end plates (1) at the front and back ends, fixed plates (3) above and below the single capacitor group (12), and side plates (2) at the left and right sides of the single capacitor group (12); the end plates (1) and the side plates (2), the end plates (1) and the fixed plates (3), and the fixed plates (3) and the side plates (2) are detachably connected; the side plates (2) are provided with series connection wire rows (15) electrically connected with the terminal connectors of the capacitor units; the end of the side plate (2) facing the end plate (1) is provided with an outgoing pole connection row (10) electrically connected with the series connection wire row (15); the side plate (2) is provided with insulating plates (4) corresponding to the positions of the series connection wire row (15); the fixed plate (3) is provided with ventilation grooves corresponding to the positions of the single capacitor group (12); the left and right sides of the fixed plate (3) are correspondingly provided with bending portions (9); the bending portions (9) and the side plates (2) are provided with wire grooves for accommodating wire harnesses; and the insulating plates (4) are detachably mounted on the bending portions (9). 2.The super lithium capacitor module for energy recovery according to claim 1, characterized in that: The end plates (1) and the side plates (2), the end plates (1) and the fixed plates (3), and the fixed plates (3) and the side plates (2) are connected by screws. 3.The super lithium capacitor module for energy recovery according to claim 1, characterized in that: The fixed plate (3) is provided with a plurality of air holes at positions corresponding to the ventilation grooves. 4.The super lithium capacitor module for energy recovery according to claim 3, characterized in that: The ventilation grooves comprise a middle ventilation groove (5) arranged in the middle of the fixed plate (3) and two outer ventilation grooves (6) arranged at the left and right sides of the fixed plate (3); the length directions of the middle ventilation groove (5) and the outer ventilation grooves (6) are the same; the middle ventilation groove (5) is arranged corresponding to the middle of the capacitor unit; and the outer ventilation grooves (6) are arranged corresponding to the edges of the capacitor unit.

5. The super lithium capacitor module for energy recovery according to claim 4, characterized in that: The air holes comprise middle holes (7) and outer holes (8); the middle holes (7) are arranged corresponding to the middle ventilation groove (5) and are in communication with the middle ventilation groove (5); the length directions of the middle holes (7) are perpendicular to the length direction of the middle ventilation groove (5); and the outer holes (8) are arranged corresponding to the outer ventilation grooves (6) and are in communication with the outer ventilation grooves (6); the length directions of the outer holes (8) are the same as the length direction of the outer ventilation grooves (6). 6.The super lithium capacitor module for energy recovery according to claim 1, characterized in that: Limiting foam (11) is arranged between the fixed plate (3) and the single capacitor group (12); and the limiting foam (11) is arranged at least at the left and right sides of the single capacitor group (12). 7.The super lithium capacitor module for energy recovery according to claim 1, characterized in that: The end plate (1) is provided with an outgoing pole base (16) for mounting the outgoing pole connection row (10); and the outgoing pole base (16) is detachably mounted on the end plate (1). 8.The super lithium capacitor module for energy recovery according to claim 1, characterized in that: The side plate (2) is provided with a positioning groove (14) on the side facing the single capacitor group (12). 9.The super lithium capacitor module for energy recovery according to claim 1, characterized in that: The surface of the insulating plate (4) is provided with a PI film; and a ventilation gap exists between the insulating plate (4) and the series connection wire row (15). 10.The super lithium capacitor module for energy recovery according to claim 1, characterized in that: An insulating pad (13) is arranged between the end plate (1) and the single capacitor group (12).

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