Energy storage device

Abstract

The present invention provides an energy storage device, which includes a plurality of battery modules, a plurality of mounting brackets for fixing the battery modules, fasteners fixed on the mounting brackets, and electrical connection components. Each battery module has a positive electrode and a negative electrode, and two of the fasteners are provided corresponding to each battery module. The electrical connection components are used to electrically connect the positive electrodes and negative electrodes of adjacent battery modules to connect a plurality of the battery modules in series, and the fasteners are used to fix both ends of the electrical connection components. By providing the mounting brackets and the fasteners, the energy storage device of the present invention can connect the battery modules in series in the factory of the energy storage device, so that no wiring is required during on-site installation, which improves the installation efficiency, avoids the safety problems of on-site installation, and makes the installation more reliable.

Description

Technical Field

[0001] The present invention relates to an energy storage device. Background Art

[0002] In the existing energy storage system, when installing and commissioning on-site equipment, the battery modules and the high-voltage control box need to be installed and then wired. Due to the uneven professionalism of the installation personnel, installation wiring errors often occur during the on-site equipment installation. In the lightest case, the system cannot operate normally, and in the worst case, the system will short-circuit and cause safety accidents. In addition, when wiring on-site, different installation environments and the professionalism of the installation personnel will also greatly affect the installation efficiency of the equipment. The installation efficiency is low and it is easy to make mistakes.

[0003] In view of this, it is necessary to improve the existing energy storage device to solve the above problems. Summary of the Invention

[0004] The purpose of the present invention is to provide an energy storage device to solve the problems of low installation efficiency and easy error in the existing energy storage system.

[0005] To achieve the above purpose, the present invention provides an energy storage device, which includes a plurality of battery modules, a plurality of mounting brackets for fixing the battery modules, fasteners fixed on the mounting brackets, and electrical connection components. Each battery module has a positive electrode and a negative electrode. Two fasteners are correspondingly provided for each battery module. The electrical connection components are used to electrically connect the positive electrodes and negative electrodes of adjacent battery modules in series to connect a plurality of battery modules in series. The fasteners are used to fix both ends of the electrical connection components.

[0006] As a further improvement of the present invention, the energy storage device further includes a positive main wiring and a negative main wiring, and the positive main wiring and the negative main wiring are electrically connected to the positive electrode and the negative electrode at both ends of the series-connected battery modules respectively.

[0007] As a further improvement of the present invention, the fasteners are made of insulating materials.

[0008] As a further improvement of the present invention, the fasteners are made of plastic.

[0009] As a further improvement of the present invention, the fasteners include a first fixing part fixedly connected to the mounting bracket and a first clamping part connected to the first fixing part, and the electrical connection components are clamped between the first clamping parts.

[0010] As a further improvement of the present invention, a clamping hole is provided at one end of the first clamping part away from the first fixing part to fix the electrical connection components through screws.

[0011] As a further improvement of the present invention, the battery module includes a plug-in member for electrically connecting to the positive electrode and the negative electrode, and the plug-in member is used for electrically connecting to the electrical series connection member.

[0012] As a further improvement of the present invention, the plug-in member includes a second fixing portion, a second clamping portion connected to the second fixing portion, and an electrical connection portion disposed within the second clamping portion. The electrical series connection member is clamped between the second clamping portions and abuts against the electrical connection portion.

[0013] As a further improvement of the present invention, the electrical series connection member includes a clamping section extending in the vertical direction at both ends and a connecting section extending in the horizontal or inclined direction to connect the clamping sections at both ends. The clamping sections are received within the first clamping portion and the second clamping portion.

[0014] As a further improvement of the present invention, the energy storage device further includes a cabinet body and a cabinet door for opening and closing the cabinet body. The battery module, the mounting rack, the fastener, and the electrical series connection member are disposed within the cabinet body. The number of battery modules is twelve and they are evenly divided into two columns.

[0015] The beneficial effects of the present invention are as follows: By providing the mounting rack and the fastener, the energy storage device of the present invention can connect the battery modules in series in the factory, eliminating the need for wiring during on-site installation, improving the installation efficiency, avoiding safety problems during on-site installation, and ensuring more reliable installation. Description of the Drawings

[0016] Figure 1 is a schematic structural diagram of the energy storage device of the present invention;

[0017] Figure 2 is a schematic structural diagram of the energy storage device of the present invention without the cabinet door;

[0018] Figure 3 is Figure 2 an enlarged schematic structural diagram of area A in

[0019] Figure 4 is a schematic structural diagram of the cooperation between the battery module and the electrical series connection member of the energy storage device of the present invention;

[0020] Figure 5 is a schematic structural diagram of the battery module of the energy storage device of the present invention;

[0021] Figure 6 is a schematic structural diagram of the fastener of the energy storage device of the present invention. Detailed Description of the Invention

[0022] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0023] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0024] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations. In addition, the technical features involved in different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0025] As Figures 1 to 6 shown, the energy storage device 100 of the present invention includes a plurality of battery modules 1, a plurality of mounting brackets 2 for fixing the battery modules 1, fasteners 3 fixed on the mounting brackets 2, electrical series connection members 4, a positive main wiring 5, a negative main wiring 6, a cabinet 7, and a cabinet door 8 for opening and closing the cabinet 7. The battery modules 1, mounting brackets 2, fasteners 3, electrical series connection members 4, positive main wiring 5, and negative main wiring 6 are arranged inside the cabinet 7.

[0026] Each of the battery modules 1 is correspondingly provided with two of the fasteners 3. The fasteners 3 are made of insulating materials. In this embodiment, the fasteners 3 are made of plastics. The fasteners 3 can play the role of fixing the electrical series connection members 4 and can achieve an insulating effect.

[0027] In this embodiment, the fastener 3 includes a first fixing portion 31 fixedly connected to the mounting bracket 2 and a first clamping portion 32 connected to the first fixing portion 31. The electrical series connection member 4 is clamped between the first clamping portions 32.

[0028] A clamping hole 33 is provided at one end of the first clamping portion 32 away from the first fixing portion 31 to pass through a screw to fix the electrical connection member 4. After the electrical connection member 4 enters between the first clamping portions 32, the screw is tightened, so that the first clamping portions 32 can be clamped, and then the electrical connection member 4 is fixed.

[0029] In other embodiments, the fastener 3 can also be of other structures, as long as the fixation of the electrical connection member 4 can be achieved.

[0030] The number of the battery modules 1 is twelve, and they are evenly divided into two columns. Each column is provided with six battery modules 1 and corresponding mounting brackets 2.

[0031] The battery module 1 has a positive electrode, a negative electrode, a plug connector 11 for electrically connecting to the positive electrode and the negative electrode, and a battery body 12 for fixing the plug connector 11.

[0032] The plug connector 11 is used for electrically connecting to the electrical connection member 4. The plug connector 11 includes a second fixing portion 111, a second clamping portion 112 connected to the second fixing portion 111, and an electrical connection portion 113 provided in the second clamping portion 112. The electrical connection member 4 is clamped between the second clamping portions 112 and abuts against the electrical connection portion 113.

[0033] The battery body 12 of the battery module 1 is used for being fixedly connected to the mounting bracket 2 through a screw. When the battery module 1 is fixed to the mounting bracket 2, the electrical connection member 4 is clamped in the second clamping portion 112 and is electrically connected to the electrical connection portion 113.

[0034] The electrical connection member 4 is used for electrically connecting the positive electrodes and negative electrodes of adjacent battery modules 1 in series to connect multiple battery modules 1, and the fastener 3 is used for fixing both ends of the electrical connection member 4.

[0035] The electrical connection member 4 includes clamping segments 41 extending in the vertical direction at both ends and a connecting segment 42 extending in the horizontal or inclined direction to connect the clamping segments 41 at both ends. The clamping segments 41 are received in the first clamping portion 32 and the second clamping portion 112.

[0036] Both ends of the electrical connection member 4 are respectively connected to the positive electrode of one battery module 1 and the negative electrode of an adjacent battery module 1. If two adjacent battery modules 1 are arranged vertically, the connecting segment 42 extends in the inclined direction. If two adjacent battery modules 1 are arranged horizontally, the connecting segment 42 extends in the horizontal direction.

[0037] Of course, in other embodiments, the orientation of the electrical connection member 4 can also be determined according to the arrangement of the battery modules 1.

[0038] The positive main wiring 5 and the negative main wiring 6 are electrically connected to the positive and negative electrodes at both ends of the serially connected battery modules 1 respectively. The positive main wiring 5 and the negative main wiring 6 are used to connect to external electrical appliances. The positive main wiring 5 and the negative main wiring 6 are fixed to the fastener 3.

[0039] The positive main wiring 5, the negative main wiring 6 and the electrical connection member 4 are all made of metal copper to improve conductivity.

[0040] The installation method of the energy storage device 100 of the present invention is as follows: Fix the fastener 3 on the mounting rack 2, and clamp the positive main wiring 5, the negative main wiring 6 and the electrical connection member 4 on the fastener 3; Fix the battery module 1 to the mounting rack 2, and at the same time, the positive and negative electrodes are electrically connected to the electrical connection member 4, and the positive and negative electrodes of the battery modules 1 at both ends are respectively connected to the positive main wiring 5 and the negative main wiring 6. When assembling with other electrical appliances, only the positive main wiring 5 and the negative main wiring 6 need to be led out for connection.

[0041] By providing the mounting rack 2 and the fastener 3, the energy storage device 100 of the present invention can connect the battery modules 1 in series in the factory, and no wiring is required for on-site installation, which improves the installation efficiency, avoids the safety problems of on-site installation, and makes the installation more reliable.

[0042] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0043] The above-described embodiments only represent several implementation manners of the present invention. The description is relatively specific and detailed, but it should not be construed as a limitation to the scope of the invention patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the invention patent should be subject to the appended claims.

Claims

1. An energy storage device, characterized in that: The energy storage device includes a plurality of battery modules, a plurality of mounting brackets for fixing the battery modules, fasteners fixed on the mounting brackets, electrical connection components, a cabinet body, and a cabinet door for opening and closing the cabinet body. The battery module has a positive electrode and a negative electrode. Two fasteners are provided corresponding to each battery module. The electrical connection components are used to electrically connect the positive electrodes and negative electrodes of adjacent battery modules in series to connect a plurality of the battery modules. The fasteners are used to fix both ends of the electrical connection components. The fasteners are made of insulating materials. The fasteners include a first fixing part fixedly connected to the mounting bracket and a first clamping part connected to the first fixing part. The electrical connection components are clamped between the first clamping parts. A clamping hole is provided at one end of the first clamping part away from the first fixing part to fix the electrical connection components through screws. The battery modules, mounting brackets, fasteners, and electrical connection components are arranged in the cabinet body.

2. The energy storage device according to claim 1, wherein: The energy storage device further includes a positive main wiring and a negative main wiring, and the positive main wiring and the negative main wiring are electrically connected to the positive electrode and the negative electrode at both ends of the series-connected battery modules respectively.

3. The energy storage device according to claim 1, characterized in that: The fasteners are made of plastic.

4. The energy storage device according to claim 1, characterized in that: The battery module includes a plug-in part for electrically connecting to the positive electrode and the negative electrode, and the plug-in part is used to electrically connect to the electrical connection components.

5. The energy storage device according to claim 4, wherein: The plug-in part includes a second fixing part, a second clamping part connected to the second fixing part, and an electrical connection part arranged in the second clamping part. The electrical connection components are clamped between the second clamping parts and abutted against the electrical connection part.

6. The energy storage device according to claim 5, characterized in that: The electrical connection components include clamping segments extending in the vertical direction at both ends and a connecting segment extending in the horizontal or inclined direction to connect the clamping segments at both ends. The clamping segments are received in the first clamping parts and the second clamping parts.

7. The energy storage device according to claim 1, wherein: The number of the battery modules is twelve and they are evenly divided into two columns.

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