Energy storage battery device

Abstract

The utility model discloses a kind of energy storage battery devices, belong to battery technical field.The energy storage battery device of the utility model, battery pack includes multiple battery monomers, end plate and binding piece, multiple battery monomers are stacked along first direction, end plate is located in one end of multiple battery monomers along first direction, binding piece is integrated with multiple battery monomers and end plate, and support is used to support fixed battery pack, compared with prior art, battery pack does not need to set packaging shell, and then the space occupied by battery pack can be reduced, to improve the space utilization of energy storage battery device, with the effect of improving the energy density of energy storage battery device;At the same time, blocking piece is fixedly connected with support, and abuts on the side of battery pack which is not set binding piece by blocking piece, not only can improve the installation stability of battery pack on support, but also can avoid interference between blocking piece and binding piece.

Description

Technical Field

[0001] This utility model relates to the field of battery technology, and in particular to an energy storage battery device. Background Technology

[0002] Energy storage containers are modular and integrated power storage systems that use standard containers as carriers and integrate battery packs, energy management systems, converters and auxiliary equipment. They are widely used in new energy power plants, industrial and commercial fields.

[0003] In related technologies, battery packs housed within energy storage containers are typically encapsulated within a housing to form a single unit. This not only facilitates transportation but also enhances the safety of the battery pack. However, each battery pack has its own housing, resulting in a large space occupied by the battery packs, which in turn makes it difficult for the energy density of the energy storage container to meet user needs. Utility Model Content

[0004] The purpose of this invention is to provide an energy storage battery device that can improve the space utilization and energy density of the energy storage battery device.

[0005] To achieve the above objectives, the following technical solution is provided:

[0006] An energy storage battery device includes a bracket, a blocking member, and a battery pack. The battery pack includes multiple battery cells, an end plate, and a binding member. The multiple battery cells are stacked along a first direction. The end plate is located at one end of the multiple battery cells along the first direction. The binding member fixes the multiple battery cells and the end plate together. The bracket is used to support and fix the battery pack. The blocking member abuts against the side of the battery pack where the binding member is not located. The blocking member is fixedly connected to the bracket.

[0007] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0008] The energy storage battery device of this utility model includes a battery pack comprising multiple battery cells, an end plate, and a binding member. The multiple battery cells are stacked along a first direction, and the end plate is located at one end of the multiple battery cells along the first direction. The binding member fixes the multiple battery cells and the end plate together, and the bracket is used to support and fix the battery pack. Compared with the prior art, the battery pack does not need to be encapsulated, thereby reducing the space occupied by the battery pack and improving the space utilization rate of the energy storage battery device, which has the effect of improving the energy density of the energy storage battery device. At the same time, the blocking member is fixedly connected to the bracket and abuts against the side of the battery pack without the binding member, which not only improves the installation stability of the battery pack on the bracket, but also avoids interference between the blocking member and the binding member. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the energy storage battery device in an embodiment of this utility model.

[0010] Figure label:

[0011] 1. Bracket; 2. Blocking component; 21. Protrusion; 3. Battery pack; 31. Battery cell; 311. Terminal post; 32. End plate; 33. Binding component; 34. Heat exchange component; 341. Heat exchange medium conveying part; 4. Fastener. Detailed Implementation

[0012] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0013] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0014] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0015] In the description of this utility model, it should be noted that the terms "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0016] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0017] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0018] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0019] like Figure 1 As shown, this embodiment provides an energy storage battery device, including a bracket 1, a blocking member 2, and a battery pack 3. The battery pack 3 includes multiple battery cells 31, end plates 32, and binding members 33. The multiple battery cells 31 are stacked along a first direction, and the end plates 32 are located at both ends of the multiple battery cells 31 along the first direction. The binding members 33 fix the multiple battery cells 31 and the end plates 32 into one unit. The bracket 1 is used to support and fix the battery pack 3. Specifically, the battery pack 3 is placed on the bracket 1, and the blocking member 2 abuts against the side of the battery pack 3 where the binding members 33 are not provided. The blocking member 2 is fixedly connected to the bracket 1.

[0020] Specifically, multiple battery cells 31 with equal capacity and internal resistance are connected in series or in parallel to form a battery pack 3.

[0021] In this embodiment, two end plates 32 are provided, and the two end plates 32 are respectively disposed at both ends of the battery pack 3 formed by multiple battery cells 31, so as to counteract the expansion and deformation force of the individual battery cells 31 and prevent the overall size of the battery pack 3 from increasing. Of course, one end plate 32 can also be provided, so that the end plate 32 is disposed at one end of the battery pack 3 formed by multiple battery cells 31.

[0022] Compared with the prior art, the energy storage battery device of this embodiment does not require a package shell for the battery pack 3, thereby reducing the space occupied by the battery pack 3 and improving the space utilization of the energy storage battery device, which has the effect of increasing the energy density of the energy storage battery device. At the same time, by the blocking member 2 abutting against the side of the battery pack 3 without the binding member 33, not only can the installation stability of the battery pack 3 on the bracket 1 be improved, but also interference between the blocking member 2 and the binding member 33 can be avoided.

[0023] Optionally, the blocking member 2 abuts against the side of the battery pack 3 where the terminal post 311 is located. In other words, the binding member 33 does not contact the side of the battery pack 3 where the terminal post 311 is located. On the one hand, this can prevent the fastening force of the binding member 33 from affecting the surface of the battery pack 3 where the terminal post 311 is located, which is beneficial to improving the safety of the battery pack 3. On the other hand, since the safety requirements of the surface of the battery pack 3 where the terminal post 311 is located are higher, the structural strength of the blocking member 2 is greater, which can protect the surface of the battery pack 3 where the terminal post 311 is located, thereby further improving the safety of the battery pack 3.

[0024] Optionally, the minimum distance between the blocking element 2 and the terminal 311 is greater than or equal to 14.2 mm. If the minimum distance between the blocking element 2 and the terminal 311 is too small, the risk of short circuit will easily increase. By limiting the minimum distance between the blocking element 2 and the terminal 311 to greater than or equal to 14.2 mm, the insulation and reliability of the blocking element 2 can be improved.

[0025] It should be noted that the battery cell 31 includes two terminals 311, namely a positive terminal 311 and a negative terminal 311. In this embodiment, the positive terminal 311 and the negative terminal 311 are both located on the same side of the battery cell 31.

[0026] Optionally, the blocking member 2 has a protrusion 21 on the side facing away from the battery pack 3. Further, the battery pack 3 also includes a conductive bus that is electrically connected to the terminal post 311; the surface of the protrusion 21 facing away from the battery pack 3 is farther away from the battery pack 3 than the surface of the conductive bus facing away from the battery pack 3, thereby protecting the conductive bus through the protrusion 21, which is beneficial to improving the safety and reliability of the battery pack 3.

[0027] Specifically, the conductive outlet connects to the terminals (battery current output terminals) of at least two battery cells 31 to achieve series or parallel connection of multiple battery cells 31.

[0028] Optionally, the blocking member 2 is connected to the bracket 1 by a fastener 4; the surface of the protrusion 21 facing away from the battery pack 3 is farther away from the battery pack 3 than the surface of the fastener 4 facing away from the battery pack 3, thereby protecting the fastener 4 through the protrusion 21, reducing the risk of the fastener 4 loosening due to impact, and improving the installation stability of the battery pack 3.

[0029] Optionally, the blocking component 2 is detachably connected to the bracket 1, which facilitates the quick installation and removal of the blocking component 2 during the later maintenance or repair of the battery pack 3, thus reducing costs and increasing efficiency.

[0030] Specifically, the fastener 4 is a bolt, the head of which abuts against the blocking member 2, and the shank of the bolt passes through the blocking member 2 and is threadedly connected to the bracket 1.

[0031] In other embodiments, the bolt can also be welded to the bracket 1. Of course, the fastener 4 can also be a rivet.

[0032] Optionally, the blocking member 2 and the battery pack 3 are respectively located on both sides of the bracket 1, which can avoid the battery pack 3 interfering with the installation of the blocking member 2 and improve the installation convenience of the blocking member 2.

[0033] Optionally, the battery pack 3 also includes a heat exchanger 34, on which multiple battery cells 31 and two end plates 32 are placed. A binding member 33 secures the multiple battery cells 31, the two end plates 32, and the heat exchanger 34 together. On one hand, the heat exchanger 34 can perform thermal management on the multiple battery cells 31, thereby improving their performance and safety. On the other hand, the heat exchanger 34 can also provide support for the multiple battery cells 31, further improving the installation stability of the battery pack 3. Specifically, the binding member 33 is a cable tie, with the ends joined together to form a ring structure and fitted over the two end plates 32 and the multiple battery cells 31.

[0034] For example, the heat exchanger 34 is a heat exchange plate, which can provide stable support for multiple battery cells 31 and has good heat exchange effect. Of course, the heat exchanger 34 can also be a heat exchange coil or other structure, which is not limited here.

[0035] Optionally, the heat exchanger 34 is provided with a heat exchange medium conveying section 341, which is located on the side of the blocking member 2 away from the battery pack 3. This not only allows for more space to be reserved for multiple battery cells 31, which is beneficial to improving the energy density of the battery pack 3, but also facilitates the connection of the heat exchange medium conveying section 341 with the heat exchange medium supply equipment, making operation convenient.

[0036] For example, the heat exchange medium conveying unit 341 includes a heat exchange medium inlet and a heat exchange medium outlet. The heat exchange medium inlet is used to introduce heat exchange medium (such as coolant) into the heat exchange element 34, and the heat exchange medium outlet is used to discharge the heat exchange medium in the heat exchange element 34.

[0037] Optionally, the energy storage battery device also includes a reinforcing member, the two ends of which are connected to the blocking member 2 and the heat exchange member 34 respectively. The reinforcing member can support and strengthen the blocking member 2, which helps to improve the structural strength of the blocking member 2.

[0038] Optionally, the reinforcing member is made of a thermally conductive material. Furthermore, the blocking member 2 is also made of a thermally conductive material. This allows the blocking member 2 to exchange heat with the heat exchanger 34 through the reinforcing member, enabling the blocking member 2 to provide a certain thermal management capability to the surface of the battery pack 3 with the terminal posts 311, thereby improving the performance and safety of the battery pack 3.

[0039] For example, the reinforcing member is made of a metallic material, which can improve the structural strength and thermal conductivity of the reinforcing member. The blocking member 2 is made of a metallic material, which can improve the structural strength and thermal conductivity of the blocking member 2.

[0040] Optionally, the energy storage battery device also includes a container, with the support 1 fixed inside the container, thereby protecting the battery pack 3 and facilitating the movement of the energy storage battery device.

[0041] Note that the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention. The scope of the present invention is determined by the scope of the appended claims.

Claims

1. An energy storage battery device, characterized in that, The device includes a bracket (1), a blocking member (2), and a battery pack (3). The battery pack (3) includes multiple battery cells (31), an end plate (32), and a binding member (33). The multiple battery cells (31) are stacked along a first direction. The end plate (32) is located at one end of the multiple battery cells (31) along the first direction. The binding member (33) fixes the multiple battery cells (31) and the end plate (32) together. The bracket (1) is used to support and fix the battery pack (3). The blocking member (2) abuts against the side of the battery pack (3) where the binding member (33) is not located. The blocking member (2) is fixedly connected to the bracket (1).

2. The energy storage battery device according to claim 1, characterized in that, The blocking member (2) abuts against the side of the battery pack (3) where the terminal post (311) is located.

3. The energy storage battery device according to claim 2, characterized in that, The minimum distance between the blocking member (2) and the pole post (311) is greater than or equal to 14.2 mm.

4. The energy storage battery device according to claim 2, characterized in that, The battery pack (3) also includes a conductive bus that is electrically connected to the terminal (311); The blocking member (2) has a protrusion (21) on the side away from the battery pack (3), and the surface of the protrusion (21) on the side away from the battery pack (3) is farther away from the battery pack (3) than the surface of the conductive bar on the side away from the battery pack (3).

5. The energy storage battery device according to claim 1, characterized in that, The blocking member (2) is connected to the bracket (1) by fasteners (4); The blocking member (2) has a protrusion (21) on the side away from the battery pack (3), and the surface of the protrusion (21) on the side away from the battery pack (3) is farther away from the battery pack (3) than the surface of the fastener (4) on the side away from the battery pack (3).

6. The energy storage battery device according to claim 1, characterized in that, The blocking member (2) and the battery pack (3) are respectively disposed on both sides of the bracket (1); And / or, the blocking member (2) is detachably connected to the bracket (1).

7. The energy storage battery device according to any one of claims 1-6, characterized in that, The battery pack (3) also includes a heat exchanger (34), in which multiple battery cells (31) and the end plate (32) are placed. The binding member (33) fixes multiple battery cells (31), the end plate (32) and the heat exchanger (34) together.

8. The energy storage battery device according to claim 7, characterized in that, The heat exchanger (34) is provided with a heat exchange medium conveying section (341), which is located on the side of the blocking member (2) away from the battery pack (3).

9. The energy storage battery device according to claim 7, characterized in that, The energy storage battery device also includes a reinforcing member, the two ends of which are connected to the blocking member (2) and the heat exchange member (34), respectively.

10. The energy storage battery device according to any one of claims 1-6, characterized in that, The energy storage battery device also includes a container, and the support (1) is fixed inside the container.

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