Low voltage stacked battery pack

Abstract

The utility model relates to battery technology field, concretely relates to a low pressure stack battery pack, including by a plurality of battery pack stack composition battery pack and stack place in the battery pack top surface and with battery pack electricity connection's inverter layer, the battery pack includes battery pack body and the integrated mould with the cross section of battery pack body top surface is trapezoidal positioning groove, the bottom surface of battery pack body is located on the corresponding position of positioning groove and is equipped with battery pack positioning block, battery pack positioning block is cooperated with positioning groove, the top surface of battery pack body is equipped with battery pack plug, the bottom surface of battery pack body is located on the corresponding position of battery pack plug and is equipped with battery pack interface.

Description

Technical Field

[0001] This utility model relates to the field of battery technology, specifically to a low-voltage stacked battery pack. Background Technology

[0002] Stacked batteries refer to a type of battery composed of multiple battery modules stacked together. Specifically, a casing is set on the battery module, and interfaces and plugs are set on the casing to form battery blocks. The battery blocks are stacked on top of each other, and the plugs and interfaces are connected to connect different battery blocks. As needed, multiple battery blocks can be stacked and connected to form a stacked battery. Home energy storage stacked lithium batteries are a type of stacked battery. They are modular lithium battery systems designed specifically for home energy storage. Their core feature is that multiple standardized battery modules are physically stacked and electrically connected in parallel to achieve flexible capacity expansion. Stacked batteries usually consist of battery modules and a casing covering the battery modules. The casing also has stacking connectors, which are connected to the battery modules via wires. Its installation flexibility and economy are particularly suitable for photovoltaic homes, regions with diverse climates, and areas with unstable power.

[0003] Although the existing technologies mentioned above can solve the corresponding technical problems, they still have certain drawbacks: In the process of using existing stacked batteries, multiple battery packs need to be aligned, and then the interfaces and connectors of the battery packs are connected in parallel by wires. Then, the inverter is placed on top of the top battery pack, and the top battery pack is connected to the inverter by wires. When connecting, the battery packs and inverters need to be accurately aligned, which is relatively inconvenient for installation. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings and deficiencies of existing technologies by providing a low-voltage stacked battery pack that is easy to position and install.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a low-voltage stacked battery pack, comprising a battery pack composed of multiple stacked battery packs and an inverter layer stacked on top of the battery pack and electrically connected to the battery pack. The battery pack includes a battery pack body and an integrally formed positioning groove with a trapezoidal cross-section on the top surface of the battery pack body. A battery pack positioning block is provided on the bottom surface of the battery pack body at the corresponding position of the positioning groove. The battery pack positioning block cooperates with the positioning groove. A battery pack plug is provided on the top surface of the battery pack body, and a battery pack interface is provided on the bottom surface of the battery pack body at the corresponding position of the battery pack plug.

[0006] A further improvement is that the inverter layer includes an inverter body and an inverter interface fixedly disposed on the bottom surface of the inverter body, which can be used with the battery pack plug.

[0007] A further improvement is that the bottom surface of the inverter body is also provided with an inverter positioning block that protrudes downward and can fit against the inner wall of the positioning groove.

[0008] A further improvement is that a control panel is provided on the front of the inverter body.

[0009] A further improvement is that an integral groove is formed on the side wall of the inverter body.

[0010] A further improvement is that a heat dissipation mesh plate is provided on the inner wall of the recessed groove.

[0011] A further improvement is that a cable outlet is provided on the inner wall of the recessed groove.

[0012] A further improvement is that an upper groove is integrally formed on the bottom edge of the battery pack body.

[0013] A further improvement is that the bottom of the battery pack is also provided with a chassis, which includes a chassis body and a chassis positioning groove integrally formed on the chassis body that can cooperate with the battery pack positioning block. The upper surface of the chassis body is also integrally formed with a receiving groove that can accommodate the battery pack interface.

[0014] A further improvement is that the bottom surface of the chassis body is also equipped with several omnidirectional wheels.

[0015] A further improvement is that a fixing post is provided on the bottom edge of the chassis body.

[0016] After adopting the above technical solution, the beneficial effects of this utility model are as follows: During installation, multiple battery packs can be quickly positioned and stacked by the positioning groove and positioning block formed on the battery pack body. The positioning groove and positioning block have trapezoidal cross sections. Therefore, even if they are not fully aligned, the inclined surface of the trapezoid can guide them to close together. After closing, the battery pack plug and battery pack interface are connected to each other, so that the battery packs are connected in parallel. This allows multiple battery packs to be quickly aligned and connected. Positioning is simple, and there is no need for tedious alignment and wiring work, making installation convenient. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a three-dimensional structural diagram of the low-voltage stacked battery pack of this utility model;

[0019] Figure 2 This is a top-view three-dimensional structural diagram of the battery pack of this utility model;

[0020] Figure 3 This is a three-dimensional structural diagram of the battery pack of this utility model viewed from below;

[0021] Figure 4 This is a three-dimensional structural diagram of the inverter layer of this utility model, viewed from below.

[0022] Figure 5 This is a top-view three-dimensional structural diagram of the inverter layer of this utility model;

[0023] Figure 6 This is a three-dimensional structural diagram of the chassis of this utility model. Detailed Implementation

[0024] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments.

[0025] See Figure 1-6As shown, the technical solution adopted in this specific embodiment is: a low-voltage stacked battery pack, including a battery pack composed of multiple battery packs 1 stacked together, and an inverter layer 2 stacked on top of the battery pack and electrically connected to the battery pack. The battery pack 1 includes a battery pack body 11 and a positioning groove 12 integrally formed with a trapezoidal cross-section on the top surface of the battery pack body 11. A battery pack positioning block 15 is provided on the bottom surface of the battery pack body 11 at the corresponding position of the positioning groove 12. The battery pack positioning block 15 cooperates with the positioning groove 12. A battery pack plug 1 is provided on the top surface of the battery pack body 11. 3. A battery pack interface 16 is provided on the bottom surface of the battery pack body 11 at the corresponding position of the battery pack plug 13. The inverter layer 2 includes an inverter body 21 and an inverter interface 25 fixedly disposed on the bottom surface of the inverter body 21, which can cooperate with the battery pack plug 13. In use, the battery packs 1 are first stacked, with the first battery pack 1 placed on a flat surface, so that the positioning groove 12 on the battery pack body 11 faces upward. Then, the second battery pack 1 is placed on top of the first battery pack 1 from top to bottom, and the battery pack interface 16 and the battery pack plug 13 are positioned in the correct position. On the same side, the second battery pack 1 is then moved downwards, causing the battery pack positioning block 15 on the battery pack body 11 of the second battery pack 1 to enter the positioning groove 12 on the battery pack body 11 of the first battery pack 1. At this time, the positioning groove 12 and the trapezoidal structure of the battery pack positioning block 15 can be used to close the two together. Even if the first battery pack 1 and the second battery pack 1 are not completely aligned, the positioning groove 12 and the trapezoidal slope of the battery pack positioning block 15 can guide the two to close together, while simultaneously allowing the battery pack plug 13 to be inserted. Insert the battery pack into the battery pack interface 16 and connect it. Repeat the above steps to stack multiple battery packs 1 to form a battery pack. Then, install the inverter layer 2 on the upper surface of the battery pack. Connect the inverter interface 25 on the inverter body 21 of the inverter layer 2 to the battery pack plug 13 on the battery pack body 11. This allows the inverter layer 2 to be connected to the battery pack and complete the connection and installation. The positioning slot 12 and the battery pack positioning block 15 are used to quickly position and connect multiple battery packs 1. The positioning is simple and does not require tedious alignment and wiring work, making the installation convenient.

[0026] The bottom surface of the inverter body 21 is also provided with an inverter positioning block 27 that protrudes downward and can fit against the inner wall of the positioning groove 12. This facilitates the positioning of the inverter layer 2 by cooperating with the positioning groove 12 of the battery pack 1 when installing the inverter layer 2, further simplifying the positioning steps and making the installation more convenient.

[0027] The inverter body 21 has a control panel 26 on the front. The control panel 26 is existing technology and will not be described in detail here. It is convenient to directly and quickly control the inverter body 21 to output and input power through the control panel 26.

[0028] An integrally formed recessed groove 22 is formed on the side wall of the inverter body 21, which facilitates the quick lifting of the inverter body 21 by inserting a hand through the recessed groove 22, making it easier and faster to move.

[0029] The inner wall of the recessed groove 22 is provided with a heat dissipation mesh plate 23, which is beneficial to improve the heat dissipation effect of the inverter body 21 during operation. The heat can be quickly dissipated to the outside through the heat dissipation mesh plate 23, improving the heat dissipation performance and preventing the internal circuit components from overheating.

[0030] The inner wall of the recessed groove 22 is provided with a cable outlet 24, which is beneficial to reduce the space occupied by external cables when connecting them. This allows the entire product to be placed against the wall without taking up much space.

[0031] The bottom edge of the battery pack body 11 has an integrally formed upper groove 14, which is convenient for lifting the battery pack body 11 by placing your hand into the upper groove 14 when handling the battery pack body 11, making the battery pack 11 easier to handle.

[0032] The bottom of the battery pack is also provided with a chassis 3, which includes a chassis body 31 and a chassis positioning groove 32 integrally formed on the chassis body 31 that can cooperate with the battery pack positioning block 15. The upper surface of the chassis body 31 is also integrally formed with a receiving groove 33 that can accommodate the battery pack interface 16. During the process of installing the battery pack, the battery pack positioning block 15 of the bottom battery pack 1 cooperates with the chassis positioning groove 32 on the chassis body 31, thereby installing the battery pack on the chassis body 31. The chassis body 31 raises the height of the battery pack, avoiding the wear or water ingress caused by the bottom surface of the battery pack directly contacting the ground, making it safer to use.

[0033] The bottom surface of the chassis body 31 is also equipped with several casters 34, which facilitates the movement of the chassis body 31 through the casters 34, thereby driving the entire equipment to move synchronously, making it more flexible to use.

[0034] The bottom edge of the chassis body 31 is also provided with a fixing post 35, which is beneficial to fix the chassis body 31 by lowering the fixing post 35, so that it is not easy to slip during use, making it more stable and safer to use.

[0035] The working principle of this utility model is as follows: First, the battery packs 1 are stacked. The first battery pack 1 is placed on a flat surface with the positioning groove 12 on the battery pack body 11 facing upwards. Then, the second battery pack 1 is placed on top of the first battery pack 1 from top to bottom, with the battery pack interface 16 and battery pack plug 13 on the same side. Next, the second battery pack 1 is moved downwards so that the battery pack positioning block 15 on the battery pack body 11 of the second battery pack 1 enters the positioning groove 12 on the battery pack body 11 of the first battery pack 1. At this point, the trapezoidal structure of the positioning groove 12 and the battery pack positioning block 15 allows the two to close together, even if the first battery pack 1 and the second battery pack 1 are not in contact. If the alignment is perfect, the positioning groove 12 and the trapezoidal bevel of the battery pack positioning block 15 can be used to guide the two to close together, while the battery pack plug 13 is inserted into the battery pack interface 16 for connection. Repeating the above steps can stack multiple battery packs 1 to form a battery group. Then, the inverter layer 2 is installed on the upper surface of the battery group. The inverter interface 25 on the inverter body 21 of the inverter layer 2 is connected to the battery pack plug 13 on the battery pack body 11, so that the inverter layer 2 can be connected to the battery group to complete the connection and installation. The positioning groove 12 and the battery pack positioning block 15 are used to quickly position and connect multiple battery packs 1. The positioning is simple and does not require tedious alignment and wiring work, making the installation convenient.

[0036] This utility model aims to protect the structure of the product. The model numbers of the components are not the focus of this utility model's protection, as they are common technology. Any component on the market that can achieve the functions described above can be used as an option. Therefore, the model numbers and other parameters of the components are not described in detail in this utility model. The contribution of this utility model lies in the scientific combination of the various components.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions provided are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection of this utility model as defined by the appended claims and their equivalents. Any aspects of this utility model not detailed herein are well-known to those skilled in the art.

Claims

1. A low-voltage stacked battery pack, comprising a battery pack composed of multiple battery packs (1) stacked together, and an inverter layer (2) stacked on top of the battery pack and electrically connected to the battery pack, characterized in that: The battery pack (1) includes a battery pack body (11) and a positioning groove (12) integrally formed with a trapezoidal cross section on the top surface of the battery pack body (11). A battery pack positioning block (15) is provided on the bottom surface of the battery pack body (11) at the corresponding position of the positioning groove (12). The battery pack positioning block (15) cooperates with the positioning groove (12). A battery pack plug (13) is provided on the top surface of the battery pack body (11), and a battery pack interface (16) is provided on the bottom surface of the battery pack body (11) at the corresponding position of the battery pack plug (13).

2. The low-voltage stacked battery pack according to claim 1, characterized in that: The inverter layer (2) includes an inverter body (21) and an inverter interface (25) fixedly disposed on the bottom surface of the inverter body (21) and capable of cooperating with the battery pack plug (13).

3. A low-voltage stacked battery pack according to claim 2, characterized in that: The bottom surface of the inverter body (21) is also provided with an inverter positioning block (27) that protrudes downward and can fit against the inner wall of the positioning groove (12).

4. A low-voltage stacked battery pack according to claim 2, characterized in that: The inverter body (21) has a control panel (26) on its front side.

5. A low-voltage stacked battery pack according to claim 2, characterized in that: An indentation (22) is integrally formed on the side wall of the inverter body (21).

6. A low-voltage stacked battery pack according to claim 5, characterized in that: The inner wall of the recessed groove (22) is provided with a heat dissipation mesh plate (23).

7. A low-voltage stacked battery pack according to claim 5, characterized in that: The inner wall of the recessed groove (22) is provided with a wire outlet (24).

8. A low-voltage stacked battery pack according to claim 1, characterized in that: The bottom edge of the battery pack body (11) has an integrally formed upper groove (14).

9. A low-voltage stacked battery pack according to claim 1, characterized in that: The bottom of the battery pack is also provided with a chassis (3), the chassis (3) includes a chassis body (31) and a chassis positioning groove (32) integrally formed on the chassis body (31) that can cooperate with the battery pack positioning block (15). The upper surface of the chassis body (31) is also integrally formed with a receiving groove (33) that can accommodate the battery pack interface (16).

10. A low-voltage stacked battery pack according to claim 9, characterized in that: The bottom surface of the chassis body (31) is also equipped with several universal wheels (34).

11. A low-voltage stacked battery pack according to claim 9, characterized in that: The bottom edge of the chassis body (31) is also provided with a fixing column (35).

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