Stacked lithium battery parallel structure

Abstract

The utility model discloses a stackable lithium battery parallel connection structure which comprises lithium battery modules which can be placed in a stackable mode, the lithium battery modules are fixedly installed through L-shaped connecting pieces, and a parallel connection control box used for connecting the lithium battery modules in parallel is arranged on the tops of the lithium battery modules. The lithium battery module is sequentially provided with a power switch, an Ethernet connection socket, a BAT connection socket and a reset button. The fool-proof positive and negative electrode wiring and communication line ensures that misconnection is avoided during installation, short circuit risk is avoided, after wiring is completed, sealing is performed, all terminals and interfaces are protected, safety is greatly improved, meanwhile, a traditional rack type structure is broken through, floor or wall-mounted installation is adopted, space is saved, and the energy storage requirement of a house is met; moreover, compact design, attractive appearance and practicability are adopted, user experience is improved, modular parallel design is adopted, a plurality of batteries can be connected in parallel, and long-time standby power requirements of residential users are met.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium batteries, and particularly relates to a stacked lithium battery parallel structure. Background Art

[0002] A lithium battery is a type of battery with lithium metal or lithium alloy as the positive / negative electrode material and using a non-aqueous electrolyte solution. For example, a Chinese patent with the publication number CN2676424Y discloses a new type of lithium battery, which consists of a housing, a cap, a positive electrode plate and a negative electrode plate inside the housing, a separator between the positive and negative electrode plates, and an electrolyte solution; a cap top is provided on the cap as the positive electrode contact, and an insulating film is lined between the cap top and the cap to reduce the height; the said positive and negative electrode plates and the separator are in a four-layer spaced and stacked winding structure, that is, the four layers of the positive electrode plate, the separator, the negative electrode plate, and the separator are tightly wound into a reel as a unit; wherein the width of the separator is 0.5 mm larger than the width of the electrode plate.

[0003] At present, most of the lithium battery packs on the market are connected in parallel by a rack-mounted stacking method, but this design has the following problems:

[0004] 1. Safety hazards: The positive and negative terminals and communication interfaces of the rack-mounted lithium battery are exposed. Especially for the 51.2V high voltage, which far exceeds the international safety voltage standard of 36V, there are risks of electric shock and short circuit.

[0005] 2. Complex wiring and easy to connect wrongly: The rack-mounted lithium battery has many types of interfaces (such as CAN / RS485, PC software interface, reset button, etc.). When wiring, it is easy to connect the wrong port, and even accidentally press the reset button, resulting in data loss.

[0006] 3. Large space occupation and not suitable for residential use: The traditional rack-mounted design has a large volume, which is not only cumbersome to install but also not beautiful enough, and is not suitable for residential energy storage scenarios. Content of the Utility Model

[0007] The purpose of the utility model is to provide a stacked lithium battery parallel structure, with anti-fooling positive and negative wiring and communication lines, ensuring that it will not be connected wrongly during installation, avoiding the risk of short circuit. After the wiring is completed, it is hermetically sealed, and all terminals and interfaces are protected, greatly improving safety. At the same time, it breaks through the traditional rack-mounted structure, adopts floor or wall-mounted installation, saves space, meets the residential energy storage requirements, and adopts a compact design, which is beautiful and practical, improving the user experience. Moreover, it adopts a modular parallel design, which can parallel multiple batteries, and thus meets the long-term standby power requirements of residential users.

[0008] In order to achieve the above purpose, the main technical solutions adopted by the utility model include:

[0009] A stacked lithium battery parallel structure, comprising:

[0010] Stackable lithium battery modules, the lithium battery modules are fixedly installed through L-shaped connectors, and a parallel control box for paralleling the lithium battery modules is arranged at the top of the lithium battery modules.

[0011] The parallel control box (3) includes a housing (301), and a terminal (3011) for connecting the lithium battery module (1) is arranged on the housing (301). The terminal (3011) includes a positive terminal, a negative terminal and a communication terminal, and the colors of the positive terminal, the negative terminal and the communication terminal are all different.

[0012] In the above-mentioned stacked lithium battery parallel structure, a power switch, an Ethernet connection socket, a BAT connection socket and a reset button are sequentially arranged on the lithium battery module.

[0013] In the above-mentioned stacked lithium battery parallel structure, a connecting bolt for fixing the lithium battery module is arranged on the L-shaped connector, and a connecting hole matching the connecting bolt is arranged on the side of the lithium battery module corresponding to the connecting bolt.

[0014] In the above-mentioned stacked lithium battery parallel structure, a wall-mounted fixing hole for wall-mounted fixing of the lithium battery module is further arranged on the side of the L-shaped connector.

[0015] In the above-mentioned stacked lithium battery parallel structure, the parallel control box includes a housing, and a terminal for connecting the lithium battery module is arranged on the housing.

[0016] In the above-mentioned stacked lithium battery parallel structure, a wiring hole for wire passing is arranged on the side of the housing, and a sealing rubber sleeve is sleeved on the wiring hole.

[0017] In the above-mentioned stacked lithium battery parallel structure, an openable end cover is further arranged on the housing, and a control panel electrically connected to the terminal is installed on the end cover.

[0018] The utility model has at least the following beneficial effects:

[0019] In the utility model, a stacked lithium battery parallel structure is realized, and a foolproof positive and negative wiring and communication line are provided to ensure that there is no wrong connection during installation, avoid the risk of short circuit. After the wiring is completed, it is sealed, and all terminals and interfaces are protected, greatly improving safety. At the same time, it breaks through the traditional rack structure, adopts floor or wall-mounted installation, saves space, meets the residential energy storage requirements, and adopts a compact design, which is beautiful and practical, improves the user experience, and adopts a modular parallel design, which can parallel multiple batteries, thereby meeting the long-term standby power requirements of residential users. Description of the Drawings

[0020] The accompanying drawings described herein are used to provide a further understanding of the present application and form a part of the present application. The schematic embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation to the present application. In the drawings:

[0021] Figure 1 It is a schematic structural diagram of the parallel connection structure of the stacked lithium battery of the present utility model;

[0022] Figure 2 It is a schematic structural diagram of the lithium battery module in the parallel connection structure of the stacked lithium battery of the present utility model;

[0023] Figure 3 It is a schematic structural diagram of the L-shaped connecting piece in the parallel connection structure of the stacked lithium battery of the present utility model;

[0024] Figure 4 It is a schematic structural diagram of the parallel connection control box in the parallel connection structure of the stacked lithium battery of the present utility model;

[0025] Figure 5 It is a schematic combined structural diagram of multiple parallel connection structures of the parallel connection structure of the stacked lithium battery of the present utility model.

[0026] Explanation of the reference numerals in the drawings:

[0027] 1. Lithium battery module; 2. L-shaped connecting piece; 3. Parallel connection control box;

[0028] 101. Power switch; 102. Ethernet connection socket; 103. BAT connection socket; 104. Reset button;

[0029] 201. Connecting bolt; 2011. Connecting hole;

[0030] 202. Wall-mounted fixing hole;

[0031] 301. Shell; 3011. Terminal;

[0032] 302. End cover; 3021. Control panel;

[0033] 303. Wiring hole; 3031. Sealing rubber sleeve. Detailed implementation manners

[0034] The following will detail the implementation manners of the present application in conjunction with the accompanying drawings and embodiments, so as to fully understand how the present application uses technical means to solve technical problems and achieve the realization process of technical effects and implement accordingly.

[0035] Please refer to Figures 1 to 5As shown in the figure, a stacked lithium battery parallel structure provided by an embodiment of the present utility model includes: lithium battery modules 1 that can be stacked and placed. The lithium battery modules 1 are fixedly installed through L-shaped connectors 2. A parallel control box 3 for paralleling the lithium battery modules 1 is provided at the top of the lithium battery modules 1.

[0036] The parallel control box 3 includes a housing 301. A wiring terminal 3011 for connecting the lithium battery module 1 is provided on the housing 301. The wiring terminal 3011 includes a positive wiring terminal, a negative wiring terminal, and a communication wiring terminal, and the colors of the positive wiring terminal, the negative wiring terminal, and the communication wiring terminal are all different.

[0037] By adopting the above technical solutions, the anti-fool positive and negative wiring and communication lines ensure that there will be no wrong connection during installation, avoiding the risk of short circuit. After the wiring is completed, it is sealed. All terminals and interfaces are protected, greatly improving safety. At the same time, it breaks through the traditional rack structure, adopts floor or wall-mounted installation, saves space, meets the residential energy storage needs, and adopts a compact design, which is beautiful and practical, improving the user experience. Moreover, it adopts a modular parallel design, and multiple batteries can be paralleled, thus meeting the long-term standby power needs of residential users. The connection method between two battery modules is that the positive connection terminals are correspondingly connected, the negative connection terminals are correspondingly connected, and the communication connection terminals are correspondingly connected.

[0038] Please refer to Figures 1 to 5 As shown in the figure, a power switch 101, an Ethernet connection socket 102, a BAT connection socket 103, and a reset button 104 are sequentially provided on the lithium battery module 1.

[0039] Please refer to Figures 1 to 5 As shown in the figure, a connection bolt 201 for fixing the lithium battery module 1 is provided on the L-shaped connector 2. A connection hole 2011 matching the connection bolt 201 is provided on the side of the lithium battery module 1 corresponding to the position of the connection bolt 201. By providing the connection bolt 201 and the connection hole 2011, it is convenient to connect and fix the lithium battery module 1.

[0040] Please refer to Figures 1 to 5 As shown in the figure, a wall-mounted fixing hole 202 for wall-mounted fixing of the lithium battery module 1 is further provided on the side of the L-shaped connector 2. By providing the wall-mounted fixing hole 202, it is convenient to fix the connected lithium battery module 1 on the wall.

[0041] Please refer to Figures 1 to 5 As shown in the figure, the parallel control box 3 includes a housing 301. A wiring terminal 3011 for connecting the lithium battery module 1 is provided on the housing 301. By providing the wiring terminal 3011, it is convenient to connect and wire multiple lithium battery modules 1.

[0042] Please refer to Figures 1 to 5As shown, a wiring hole 303 for wire passing is provided on the side of the outer shell 301, and a sealing rubber sleeve 3031 is sleeved on the wiring hole 303. By setting the sealing rubber sleeve 3031, it can protect the wires passing through the wiring hole 303 and avoid scratching of the wires.

[0043] Please refer to Figures 1 to 5 As shown, an openable end cover 302 is further provided on the outer shell 301, and a control panel 3021 electrically connected to the terminal post 3011 is installed on the end cover 302.

[0044] The working principle of the present utility model is as follows: By setting two groups of terminal posts 3011, it can achieve anti-fooling positive and negative wiring and communication lines, ensuring that there is no wrong connection during installation and avoiding the risk of short circuit. After wiring is completed, cover the end cover 302 for sealing. All terminals and interfaces are protected, greatly improving safety. At the same time, it breaks through the traditional rack structure. It can not only be placed on the ground, but also the lithium battery module 1 can be wall-mounted through the wall-mounted fixing holes 202, thus greatly saving space and meeting the residential energy storage requirements. At the same time, it adopts a compact design, which is beautiful and practical, improving the user experience. Moreover, it adopts a modular parallel design, and multiple batteries can be paralleled to meet the long-term standby power requirements of residential users.

[0045] The above description shows and describes several preferred embodiments of the present utility model. However, as mentioned above, it should be understood that the present utility model is not limited to the form disclosed herein, should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be changed within the scope of the inventive concept described herein through the above teachings or the technology or knowledge in the relevant field. And any changes and modifications made by those skilled in the art without departing from the spirit and scope of the present utility model shall fall within the protection scope of the appended claims of the present utility model.

Claims

1. A stacked lithium battery parallel structure, characterized in that: It comprises a stackable lithium battery module (1), the lithium battery module (1) being fixedly installed via an L-shaped connecting piece (2), and a parallel control box (3) for connecting the lithium battery modules (1) in parallel is arranged on the top of the lithium battery module (1); The parallel control box (3) comprises a housing (301), the housing (301) being provided with terminals (3011) for connecting the lithium battery module (1), the terminals (3011) comprising a positive terminal, a negative terminal and a communication terminal, the positive terminal, the negative terminal and the communication terminal all having different colors; A wiring hole (303) for passing wires is provided on the side of the housing (301), and a sealing rubber sleeve (3031) is sleeved on the wiring hole (303).

2. The stacked lithium battery parallel structure according to claim 1, characterized in that: The lithium battery module (1) is provided with a power switch (101), an Ethernet connection socket (102), a BAT connection socket (103) and a reset button (104) in sequence.

3. The stacked lithium battery parallel structure according to claim 2, characterized in that: The L-shaped connecting member (2) is provided with a connecting bolt (201) for fixing the lithium battery module (1), and a connecting hole (2011) matching the connecting bolt (201) is provided on the side of the lithium battery module (1) at a position corresponding to the connecting bolt (201).

4. The stacked lithium battery parallel structure according to claim 3, characterized in that: The side surface of the L-shaped connecting piece (2) is also provided with a wall-hanging fixing hole (202) for wall-hanging the lithium battery module (1).

5. The stacked lithium battery parallel structure according to claim 4, characterized in that: The housing (301) is also provided with an openable end cover (302), and the end cover (302) is mounted with a control panel (3021) electrically connected to the terminal post (3011).

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