Modular assembly type energy storage device

Abstract

The utility model discloses a modular assembly type energy storage device, and relates to the technical field of energy storage equipment. The modular assembly type energy storage device comprises a battery module, each battery module comprises two limiting guide rods which are arranged in parallel, and a plurality of battery brackets and batteries clamped between two adjacent battery brackets are connected between the two limiting guide rods in a sliding manner; one ends of the two limiting guide rods are connected through a fixing rod, the other ends of the two limiting guide rods are connected through a pressing assembly, and the pressing assembly is used for pressing the battery support in the axial direction of the limiting guide rods so that the batteries can be connected in series through the battery support. The modular design is adopted for the battery module, so that when an individual battery breaks down, the broken-down battery can be independently maintained and replaced, the maintenance cost is reduced, and the repeated utilization rate of the battery is improved; the modular design enables the battery module to be split into a plurality of small modules for transportation, so that the transportation cost and risk are reduced, and rapid deployment and field maintenance are facilitated.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of energy storage devices, in particular to a modular assembled energy storage device. BACKGROUND

[0002] With the rapid development of renewable energy and the popularity of electric vehicles, energy storage technology has become a key link in energy conversion and power supply. Traditional energy storage devices are mostly of welded integrated design, which has the following problems: 1. When individual batteries fail, it is not easy to repair or replace them individually, resulting in the need to replace the entire battery module, which not only increases maintenance costs and resource waste, but also reduces the reuse rate of the battery; 2. The integrated energy storage device is usually large in size and heavy in weight, and the overall transportation cost is high and the risk is great, which is not conducive to rapid deployment and on-site maintenance; 3. The integrated energy storage device needs a complex disassembly process when recycling the battery, which increases the difficulty and cost of recycling. CONTENT OF THE UTILITY MODEL

[0003] The purpose of the application is to provide a modular assembled energy storage device to solve the problems of high maintenance cost and high transportation risk of integrated energy storage devices.

[0004] The technical scheme adopted by the application to solve its technical problems is:

[0005] A modular assembled energy storage device, comprising a battery module; the battery module comprises two parallel limiting guide rods, a plurality of battery supports and a battery clamped between adjacent two battery supports are slidably connected between the two limiting guide rods; one end of the two limiting guide rods is connected by a fixed rod, and the other end of the two limiting guide rods is connected by a pressing assembly; the pressing assembly is used to press the battery support in the axial direction of the limiting guide rod, so that the battery is connected in series through the battery support.

[0006] Further, the battery support comprises a sliding plate slidably connected between the two limiting guide rods and a conductive plate connected to one side of the sliding plate; a through hole is arranged on the sliding plate opposite to the end of the battery; and a conductive spring sheet is arranged on the conductive plate opposite to the through hole.

[0007] Further, the conductive spring sheet comprises a first spring sheet protruding towards one side of the conductive plate and a second spring sheet protruding towards the other side of the conductive plate.

[0008] Further, a limiting sliding groove is arranged on the sliding plate opposite to the limiting guide rod and slidably matched with the limiting guide rod.

[0009] Further, a limiting plate is connected to the sliding plate and in contact with the outer periphery of the battery; and the limiting plate is arranged on one side of the two limiting guide rods.

[0010] Further, the sliding plate is connected with the limiting guide rod through an adjustable assembly, the limiting guide rod is provided with an elongated hole extending along the axial direction of the limiting guide rod, and the fastening bolt passes through the elongated hole and is threadedly connected with the sliding plate.

[0011] Further, the pressing assembly comprises a fixed block fixedly connected with the two limiting guide rods, the fixed block is provided with a movable block in sliding connection with the two limiting guide rods on the side of the fixed block facing the fixed rod, the fixed block is connected with a rotating bolt rotating about the axis of the rotating bolt, and the movable block is connected with a fixed nut, and the rotating bolt is threadedly connected with the fixed nut.

[0012] Further, the rotating bolt is sleeved with a reverse-stopping elastic sheet between the head of the rotating bolt and the fixed block.

[0013] Further, the limiting guide rod and the fixed rod are in an integral molding structure.

[0014] Further, the device further comprises a device shell, the device shell comprises an outer cylinder with one end open and one end closed and an end cover connected to the open end of the outer cylinder, and the battery module is arranged in the outer cylinder.

[0015] The beneficial effects of the present application are as follows:

[0016] The modular assembly type energy storage device provided by the embodiment of the present application can individually maintain and replace the faulty battery when the individual battery fails, or can secondarily recycle other batteries, thereby reducing the maintenance cost and improving the battery recycling rate. The modular design enables the battery module to be split into multiple small modules for transportation, thereby reducing the transportation cost and risk and facilitating rapid deployment and on-site maintenance. The modular design also simplifies the recycling process of the battery module, reduces the recycling difficulty and cost, and improves the recycling efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor.

[0018] Figure 1 is a structural schematic diagram of the modular assembly type energy storage device provided by the embodiment of the present application;

[0019] Figure 2 is a structural schematic diagram of the battery module after assembly.

[0020] Figure 3 is a structural schematic diagram of a battery module before assembly;

[0021] Figure 4 is a structural schematic diagram of the connection between the pressing assembly and the limiting guide rod;

[0022] Figure 5 is a structural schematic diagram of the connection between the battery support and the limiting guide rod;

[0023] Figure 6 is a structural schematic diagram of the connection between the limiting guide rod and the fixing rod;

[0024] Figure 7 is a structural schematic diagram of a battery support;

[0025] Figure 8 is an exploded view of a battery support;

[0026] Figure 9 is a structural schematic diagram of a pressing assembly;

[0027] Figure 10 is an exploded view of a pressing assembly;

[0028] Figure 11 is a structural schematic diagram of a device shell.

[0029] Reference signs:

[0030] 1-battery module;

[0031] 11-limiting guide rod;

[0032] 111-long strip-shaped hole;

[0033] 12-battery support;

[0034] 121-sliding plate;

[0035] 1211-conducting hole;

[0036] 1212-limiting sliding groove;

[0037] 122-limiting plate;

[0038] 123-conductive plate;

[0039] 1231-first elastic sheet;

[0040] 1232-second elastic sheet;

[0041] 124-fastening bolt;

[0042] 13-battery;

[0043] 14-fixing rod;

[0044] 15-pressing assembly;

[0045] 151-fixed block;

[0046] 152-moving block;

[0047] 1521-positioning sliding groove;

[0048] 153-rotating bolt;

[0049] 154-fixed nut;

[0050] 155-reversing stop spring;

[0051] 156-pressing plate;

[0052] 2-device housing;

[0053] 21-outer cylinder;

[0054] 22-end cover. DETAILED DESCRIPTION

[0055] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme of the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application.

[0056] It should be noted that: similar reference numbers and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. And the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0057] In the description of the embodiments of the present application, the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly placed when the product of the present application is used, or the orientation or positional relationship commonly understood by the person skilled in the art. The terms "provided", "opened", "mounted", "connected", "linked" should be understood broadly, for example, can be fixedly connected, detachably connected and integrally connected; can be mechanically connected, or can be electrically connected; can be directly connected, or can be indirectly connected through an intermediate medium, and can be the communication inside two elements.

[0058] Referring to Figures 1 to 6The modular assembled energy storage device provided by the embodiment of the application comprises a battery module 1; the battery module 1 comprises two limiting guide rods 11 arranged in parallel, a plurality of battery supports 12 and batteries 13 clamped between adjacent two battery supports 12 are slidably connected between the two limiting guide rods 11; one end of the two limiting guide rods 11 is connected through a fixing rod 14, the other end of the two limiting guide rods 11 is connected through a pressing assembly 15, the pressing assembly 15 is used for pressing the battery support 12 in the axial direction of the limiting guide rod 11, so that the batteries 13 are connected in series through the battery support 12.

[0059] Referring to Figure 1 The modular assembled energy storage device provided by the embodiment of the application mainly comprises a battery module 1; wherein the battery module 1 can be one, two or more than two; the battery module 1 is a battery unit set combined by a plurality of batteries, used for providing required voltage and capacity. Referring to Figure 2 、 Figure 3 The battery module 1 mainly comprises two limiting guide rods 11, a plurality of battery supports 12, a plurality of batteries 13, a fixing rod 14 and a pressing assembly 15. Referring to Figure 2 、 Figure 6 The two limiting guide rods 11 are arranged in parallel, and one end of the two limiting guide rods 11 is connected through the fixing rod 14. Referring to Figure 3 、 Figure 4 The other end of the two limiting guide rods 11 is connected through the pressing assembly 15; thus a space for assembling the batteries 13 can be formed between the fixing rod 14, the two limiting guide rods 11 and the pressing assembly 15.

[0060] Referring to Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 The plurality of battery supports 12 are arranged in the axial direction of the limiting guide rod 11 and are arranged between the two limiting guide rods 11, wherein the battery support 12 is slidably connected with the two limiting guide rods 11, so that the battery support 12 can slide along the limiting guide rod 11 between the fixing rod 14 and the pressing assembly 15, and thus the batteries 13 of different lengths can be clamped between adjacent two battery supports 12. For example, seven battery supports 12 are slidably connected between the two limiting guide rods 11, and six batteries 13 are clamped between the seven battery supports 12. Wherein the battery 13 comprises a cylindrical battery, and the two ends of the cylindrical battery are positive and negative electrodes respectively.

[0061] The assembling process of the battery module 1 of the above embodiment is as follows: first, the limiting guide rod 11, the battery support 12, the fixing rod 14 and the pressing assembly 15 are assembled together, and the battery 13 is clamped between the adjacent battery supports 12; then, the pressing assembly 15 is controlled to apply a pressing force to the battery support 12 in the direction of the fixing rod 14 to press the battery support 12, and then the battery 13 is locked between the two limiting guide rods 11 by the battery support 12, and at the same time, the plurality of batteries 13 are connected in series by the battery support 12 to form a battery unit. When a battery 13 in the battery module 1 fails, the pressing force of the pressing assembly 15 on the battery support 12 is removed, so that the battery support 12 can slide on the limiting guide rod 11, and then the failed battery 13 can be removed and replaced. After the replacement is completed, the battery support 12 is pressed by the pressing assembly 15.

[0062] The modular assembled energy storage device provided by the embodiment of the present application has a modular design. When an individual battery 13 fails, the failed battery 13 can be repaired and replaced individually, or other batteries 13 can be recycled, thereby reducing maintenance costs and improving the recycling rate of the batteries. The modular design allows the battery module 1 to be divided into multiple small modules for transportation, thereby reducing transportation costs and risks and facilitating rapid deployment and on-site maintenance. The modular design also simplifies the recycling process of the battery module 1, reduces the difficulty and cost of recycling, and improves the recycling efficiency.

[0063] The battery support 12 is not only used to assemble the battery 13 between the two limiting guide rods 11, but also used to connect the adjacent two batteries 13 to form a series structure.

[0064] In some embodiments, referring to Figure 7 、 Figure 8 The battery support 12 includes a sliding plate 121 slidingly connected between the two limiting guide rods 11 and a conductive plate 123 connected to one side of the sliding plate 121. The sliding plate 121 is provided with a through hole 1211 opposite the end of the battery 13, and the conductive plate 123 is provided with a conductive spring opposite the through hole 1211. When the battery 13 is clamped between the adjacent two battery supports 12, the battery 13 is clamped by the sliding plate 121, and the positive and negative electrodes of the adjacent two batteries 13 are connected by the conductive spring on the conductive plate 123. The conductive plate 123 and the conductive spring are an integral structure, which is usually made of high-conductivity material such as copper or beryllium copper, which can provide good electrical connection and ensure stable current transmission. The conductive spring also has good elasticity and pressure resistance, which can maintain stable contact force during long-term use, reduce contact resistance and improve the reliability of electrical conduction.

[0065] For example, referring to Figure 7 、 Figure 8The conductive elastic sheet includes a first elastic sheet 1231 protruding towards one side of the conductive plate 123 and a second elastic sheet 1232 protruding towards the other side of the conductive plate 123. When the battery 13 is assembled, the first elastic sheet 1231 is used to contact the positive electrode of one of the batteries 13, and the second elastic sheet 1232 is used to contact the negative electrode of the other battery 13.

[0066] In some embodiments, referring to Figure 7 、 Figure 8 A limiting sliding groove 1212 is arranged on the sliding plate 121 opposite to the position of the limiting guide rod 11. The limiting sliding groove 1212 and the limiting guide rod 11 are used in combination to ensure that the sliding plate 121 moves accurately on the limiting guide rod 11, preventing the sliding plate 121 from exceeding the predetermined working range due to external forces, thereby protecting the overall structure from damage. At the same time, the combination of the limiting sliding groove 1212 and the limiting guide rod 11 can also simplify the design of the mechanical structure, reduce the complex limiting mechanism, and reduce the manufacturing cost and maintenance difficulty. For example, a recessed groove can be arranged on the sliding plate 121, and the recessed groove forms the limiting sliding groove 1212. Alternatively, two protruding blocks can be arranged on the sliding plate 121, and the limiting sliding groove 1212 is formed between the two blocks.

[0067] In some embodiments, Figure 3 、 Figure 4 、 Figure 7 、 Figure 8 A limiting plate 122 is connected to the sliding plate 121 and contacts the outer periphery of the battery 13, and the limiting plate 122 is arranged on one side of the two limiting guide rods 11. The structure of the limiting plate 122 can be adjusted according to the size and shape of the battery 13 to adapt to different battery models and designs, providing good adaptability and flexibility. For example, the limiting plate 122 is an arc-shaped structure that matches the outer surface of the battery 13.

[0068] By arranging the limiting plate 122 to contact the outer periphery of the battery 13, additional support and stability can be provided for the battery 13, reducing displacement of the battery 13 due to vibration or impact, thereby improving the stability and reliability of the entire structure. Since the limiting plate 122 is arranged on one side of the two limiting guide rods 11, the battery 13 can be assembled from the other side of the two limiting guide rods 11, and the limiting plate 122 provides a reference point and a contact surface for the assembly of the battery 13, making the installation of the battery 13 faster and more accurate, and simplifying the assembly process of the battery. If the battery 13 needs to be maintained or replaced, the limiting plate 122 can also serve as an auxiliary component to help quickly locate and remove the battery 13, thereby improving maintenance efficiency.

[0069] In some embodiments, referring to Figure 4 、 Figure 5The sliding plate 121 is connected with the limiting guide rod 11 through an adjustable assembly, which includes a fastening bolt 124. The limiting guide rod 11 is provided with an elongated hole 111 extending along the axial direction thereof. The fastening bolt 124 passes through the elongated hole 111 and is threadedly connected with the sliding plate 121.

[0070] The fastening bolt 124 is arranged to connect the limiting guide rod 11 and the sliding plate 121 together. When the fastening bolt 124 is tightened, proper pre-tightening force can be ensured between the limiting guide rod 11 and the sliding plate 121, thereby reducing vibration and wear, and improving the stability and durability of the whole structure. The elongated hole 111 allows the fastening bolt 124 to be adjusted in position within a certain range along the axial direction of the limiting guide rod 11, so that the position of the sliding plate 121 on the limiting guide rod 11 can be fine-adjusted to adapt to different assembly requirements or compensate for wear. When the battery module 1 is assembled or disassembled, the fastening bolt 124 only needs to be loosened, and then tightened again after necessary adjustment, which facilitates maintenance and replacement of parts.

[0071] The pressing assembly 15 is arranged to press the battery holder 12. In some embodiments, the pressing assembly 15 can include a cam pressing assembly, a wedge pressing assembly, or a bolt pressing assembly, etc. Figure 4 、 Figure 9 、 Figure 10 The pressing assembly 15 includes a fixed block 151 fixedly connected with the two limiting guide rods 11. The fixed block 151 is provided on the side facing the fixed rod 14 with a movable block 152 in sliding connection with the two limiting guide rods 11. The fixed block 151 is connected with a rotating bolt 153 rotating about its own axis. The movable block 152 is connected with a fixed nut 154. The rotating bolt 153 is threadedly connected with the fixed nut 154.

[0072] In use, the rotating bolt 153 is controlled to rotate clockwise on the fixed block 151. The movable block 152 is driven by the fixed nut 154 to approach the fixed block 151, and then the movable block 152 is separated from the battery holder 12, thereby realizing the loosening action. The rotating bolt 153 is controlled to rotate counterclockwise on the fixed block 151. The movable block 152 is driven by the fixed nut 154 to move away from the fixed block 151, and then the battery holder 12 is pressed by the movable block 152, thereby realizing the pressing action. The compact structure of the pressing assembly 15 realizes pressing and loosening through threaded connection, without the need for complex levers or hydraulic systems, thereby simplifying the structure and reducing the space occupation.

[0073] For example, the fixed block 151 and the movable block 152 can be made of a metal material, such as aluminum or steel, and the rotating bolt 153 and the fixed nut 154 can be made of a non-metal material, such as nylon or plastic. Figure 10The upper and lower ends of the movable block 152 are respectively provided with positioning sliding grooves 1521, and two limiting guide rods 11 are respectively and slidingly fitted in the two positioning sliding grooves 1521, so that the movable block 152 is slidingly installed between the two limiting guide rods 11 and slides along the limiting guide rods 11. A stepped mounting hole is formed in the middle of the movable block 152, and a fixed nut 154 is fixed in the mounting hole. The fixed block 151 can be connected with the two limiting guide rods 11 through a bolt structure, a buckle structure or the like. A through hole is formed in the center of the fixed block 151, the rod portion of the rotating bolt 153 passes through the through hole and is threadedly connected with the fixed nut 154, and a pressing plate 156 is fixed to the side of the fixed block 151 away from the movable block 152 through a screw, the pressing plate 156 is used for axially limiting the rotating bolt 153, so that the rotating bolt 153 can only rotate around its axis, and cannot move along its axis.

[0074] In some embodiments, referring to Figure 10 , the rotating bolt 153 is sleeved with a reverse stopping elastic sheet 155 between the head portion and the fixed block 151. The reverse stopping elastic sheet 155 can provide continuous elastic pressure, prevent the rotating bolt 153 from loosening in a dynamic load or vibration environment, and thus ensure that the rotating bolt 153 can still maintain a fastened state when subjected to vibration or impact.

[0075] The limiting guide rod 11 and the fixed rod 14 can be connected through fasteners such as bolts or can be welded. In some embodiments, referring to Figure 6 , the limiting guide rod 11 and the fixed rod 14 are an integrally formed structure. The integrally formed limiting guide rod 11 and the fixed rod 14 not only provide better overall rigidity and stability, but also reduce the number of components and steps required in the assembly process, thereby reducing the assembly cost and time.

[0076] In some embodiments, referring to Figure 1 , Figure 11 The modular assembly type energy storage device further includes a device shell 2, the device shell 2 includes an outer cylinder 21 with one end open and one end closed, and an end cover 22 connected to the open end of the outer cylinder 21, and the battery module 1 is arranged in the outer cylinder 21. The device shell 2 can protect the battery module 1 inside from the external environment and improve the service life of the battery module 1.

[0077] The above is only a preferred embodiment of the present application, and does not limit the present application in any form. According to the technical essence of the present application, any simple modification, equivalent replacement and improvement of the above embodiment within the spirit and principles of the present application are still within the protection scope of the technical solution of the present application.

Claims

1. A modular assembled energy storage device, characterized by, The battery module (1) comprises two parallel limiting guide rods (11), a plurality of battery supports (12) and batteries (13) clamped between adjacent two battery supports (12) are slidably connected between the two limiting guide rods (11). One end of the two limiting guide rods (11) is connected by a fixed rod (14), and the other end of the two limiting guide rods (11) is connected by a pressing assembly (15), the pressing assembly (15) is used for pressing the battery support (12) along the axial direction of the limiting guide rod (11), so that the batteries (13) are connected in series through the battery support (12).

2. The modular assembled energy storage device of claim 1, wherein, The battery support (12) comprises a sliding plate (121) slidably connected between the two limiting guide rods (11) and a conductive plate (123) connected to one side of the sliding plate (121), the sliding plate (121) is provided with a through hole (1211) opposite to the end of the battery (13), and the conductive plate (123) is provided with a conductive spring plate opposite to the through hole (1211).

3. The modular assembled energy storage device of claim 2, wherein, The conductive spring plate comprises a first spring plate (1231) protruding towards one side of the conductive plate (123) and a second spring plate (1232) protruding towards the other side of the conductive plate (123).

4. The modular assembled energy storage device of claim 2, wherein, The sliding plate (121) is provided with a limiting sliding groove (1212) matched with the limiting guide rod (11) at a position opposite to the limiting guide rod (11).

5. The modular assembled energy storage device of claim 2, 3 or 4, wherein, The sliding plate (121) is connected with a limiting plate (122) in contact with the outer peripheral surface of the battery (13), and the limiting plate (122) is arranged on one side of the two limiting guide rods (11).

6. The modular assembled energy storage device of claim 2, 3, or 4, wherein, The sliding plate (121) is connected with the limiting guide rod (11) through an adjustable assembly, the adjustable assembly comprises a fastening bolt (124), the limiting guide rod (11) is provided with an elongated hole (111) extending along its axial direction, and the fastening bolt (124) passes through the elongated hole (111) and is threadedly connected with the sliding plate (121).

7. The modular assembled energy storage device of claim 1, wherein, The pressing assembly (15) comprises a fixed block (151) fixedly connected with the two limiting guide rods (11), the fixed block (151) is provided with a movable block (152) slidably connected with the two limiting guide rods (11) on one side towards the fixed rod (14), the fixed block (151) is connected with a rotating bolt (153) rotating around its axis, and the movable block (152) is connected with a fixed nut (154), the rotating bolt (153) is threadedly connected with the fixed nut (154).

8. The modular assembled energy storage device of claim 7, wherein, The rotating bolt (153) is provided with a reverse stopping spring (155) between its head and the fixed block (151).

9. The modular assembled energy storage device of claim 1, wherein, The limiting guide rod (11) and the fixed rod (14) are integrally formed.

10. The modular assembled energy storage device of claim 1, wherein, It also comprises a device shell (2), the device shell (2) comprises an outer cylinder (21) with one end open and one end closed, and an end cover (22) connected to the open end of the outer cylinder (21), and the battery module (1) is arranged in the outer cylinder (21).

Images