High-voltage battery box structure

Abstract

The utility model relates to a high-voltage battery box body structure which comprises a cover plate, a box body and a battery cell module, the battery cell module is arranged in the box body, and the cover plate covers the top of the box body; the battery cell module comprises a first battery cell monomer, a second battery cell monomer and at least two groups of module units; the two groups of module units are symmetrically arranged; the first battery cell single body and the second battery cell single body are arranged between the two groups of module units, and the first battery cell single body and the second battery cell single body are symmetrically arranged; one ends of the two groups of module units are connected in series through the first battery cell monomers; wherein the other end of one group of module units is connected in series with the second battery cell monomer, the other end of the other group of module units is connected with a first external terminal, and the second battery cell monomer is connected with a second external terminal. The LED lamp is simple in structure, small in occupied space, good in heat dissipation effect, convenient to disassemble, assemble and maintain, good in stability, economical, safe and practical.

Description

Technical Field

[0001] This utility model belongs to the field of battery technology, and in particular relates to a high-voltage battery housing structure. Background Technology

[0002] With the in-depth development of new energy industries such as energy storage, photovoltaics, and wind power, new energy is being vigorously developed. The current of various new energy products is increasing, and the performance requirements for these products are also becoming more stringent. From the current market perspective, existing high-voltage batteries have complex structures, are difficult to assemble and disassemble, require large spaces, have long manufacturing times, and incur high material and equipment costs. Using the current high-voltage battery structure, to make a 256V high-voltage battery, it generally requires 80 cells connected in series, resulting in numerous and messy data acquisition lines, many soldering points, high labor costs, and a high risk of incomplete soldering. Furthermore, the product cost is high, and its application is significantly limited. Utility Model Content

[0003] The purpose of this utility model is to provide a high-voltage battery housing structure to solve the technical problems of existing high-voltage batteries, such as complex structure, difficult disassembly and assembly, large space occupation, long manufacturing time, many welding points, easy to cause false welding, and high production cost.

[0004] To achieve the above objectives, this utility model provides a high-voltage battery housing structure, including a cover plate, a housing, and a cell module; the cell module is disposed within the housing, and the cover plate covers the top of the housing; the cell module includes a first cell, a second cell, and at least two sets of module units; the two sets of module units are symmetrically arranged; the first cell and the second cell are both disposed between the two sets of module units, and the first cell and the second cell are symmetrically arranged;

[0005] One end of each of the two sets of module units is connected in series with the first battery cell; the other end of one set of module units is connected in series with the second battery cell, and the other end of the other set of module units is connected to the first external terminal, and the second battery cell is connected to the second external terminal.

[0006] In a preferred embodiment, gaps are provided between the cover plate and the module unit, between the module unit and the first battery cell, between the module unit and the second battery cell, and between the first battery cell and the second battery cell.

[0007] In a preferred embodiment, each module unit includes a first fixing frame, a second fixing frame, and a module unit body; the second fixing frame is sleeved on the bottom of the module unit body and fixed to the bottom surface of the housing; the first fixing frame is snapped onto the upper part of the module unit body and fixed to the bottom surface of the housing.

[0008] In a preferred embodiment, the module unit body includes a plurality of third battery cells connected in series, the plurality of third battery cells being arranged in parallel, and adjacent third battery cells being arranged in contact with each other.

[0009] In a preferred embodiment, the first fixing frame is provided with an explosion-proof valve slot, and the explosion-proof valve of each of the third battery cells is locked in the explosion-proof valve slot, and the explosion-proof valve is adapted to the explosion-proof valve slot.

[0010] In a preferred embodiment, adjacent third battery cells are connected in series via copper busbars within the same module unit body; the copper busbars are connected to the third battery cells via screws.

[0011] In a preferred embodiment, the first battery cell, the second battery cell, and the third battery cell have the same structure and size; the first battery cell, the second battery cell, and the third battery cell are all battery cells with plastic shells.

[0012] In a preferred embodiment, the third battery cell at one end of each of the two sets of module units is connected in series with the first battery cell via a first connecting line; the third battery cell at the other end of one set of module units is connected in series with the second battery cell via a second connecting line, the third battery cell at the other end of the other set of module units is connected to the first external terminal via a third connecting line, and the second battery cell is connected to the second external terminal via a fourth connecting line.

[0013] In a preferred embodiment, both the first external terminal and the second external terminal are fixedly connected to the housing by screws; both the first external terminal and the second external terminal are plug-in connection terminals.

[0014] In a preferred embodiment, the pluggable connection terminal is an Andrew pluggable terminal.

[0015] In a preferred embodiment, the housing includes a first end plate, a second end plate, a first side plate, a second side plate, and a bottom plate; the first side plate and the second side plate are respectively disposed on both sides of the bottom plate, and the first end plate and the second end plate are respectively disposed at both ends of the bottom plate; one end of the first side plate is fixedly connected to the first end plate, and the other end is connected to the second end plate; one end of the second side plate is fixedly connected to the first end plate, and the other end is connected to the second end plate.

[0016] In a preferred embodiment, the first end plate and the second end plate are arranged in parallel, and the first side plate and the second side plate are arranged in parallel.

[0017] The technical solution proposed in this utility model has the following beneficial effects: By setting the battery cell module as a module unit, a first battery cell, and a second battery cell, and controlling their relative positions and fixing methods, and using a combination of copper busbar connection and connecting wire connection to achieve the connection, the connection between battery structure and components is greatly simplified, avoiding defects such as poor soldering. While significantly reducing space occupation and effectively dissipating heat, it can effectively shorten product manufacturing time, is easy to disassemble and assemble, and has low production costs. This utility model has a simple structure, good heat dissipation, convenient disassembly and assembly, easy maintenance, good stability, and is economical, safe, and practical, which can well meet the needs of actual use. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of a high-voltage battery box according to an embodiment of the present invention;

[0019] Figure 2 for Figure 1 An exploded structural diagram of the high-voltage battery housing.

[0020] Figure 3 for Figure 2 A schematic diagram of the structure of the battery cell module. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, top, bottom, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0023] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0024] It should be noted that when a component is described as "fixed to" or "set on" another component, it can be directly on the other component or there may be an intervening component. When a component is described as "connected to" another component, it can be directly connected to the other component or there may be an intervening component.

[0025] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0026] like Figures 1 to 3 As shown, this utility model embodiment provides a high-voltage battery housing structure, including a cover plate 10, a housing 20, and a cell module 30; the cell module 30 is disposed inside the housing 20, and the cover plate 10 covers the top of the housing 20; the cell module 30 includes a first cell 31, a second cell 32, and at least two sets of module units 33; the two sets of module units 33 are symmetrically arranged; the first cell 31 and the second cell 32 are both disposed between the two sets of module units 33, and the first cell 31 and the second cell 32 are symmetrically arranged;

[0027] One end of each of the two sets of module units 33 is connected in series through the first battery cell 31; the other end of one set of module units 33 is connected in series with the second battery cell 32, and the other end of the other set of module units 33 is connected to the first external terminal 40, and the second battery cell 32 is connected to the second external terminal 50.

[0028] In a preferred embodiment, gaps are provided between the cover plate 10 and the module unit 33, between the module unit 33 and the first battery cell 31, between the module unit 33 and the second battery cell 32, and between the first battery cell 31 and the second battery cell 32. This effectively ensures insulation and further guarantees heat dissipation for the battery cell, resulting in faster and more efficient heat dissipation and effectively extending the service life of the battery cell.

[0029] In a preferred embodiment, each module unit 33 includes a first fixing frame 331, a second fixing frame 332, and a module unit body 333. The second fixing frame 332 is sleeved on the bottom of the module unit body 333 and fixed to the bottom surface of the housing 20. The first fixing frame 331 is snapped onto the upper part of the module unit body 333 and fixed to the bottom surface of the housing 20. This greatly simplifies the connection between the battery structure and components, avoids defects such as poor soldering, significantly reduces space occupation, effectively dissipates heat, effectively shortens product manufacturing time, is easy to disassemble and assemble, and has low production costs.

[0030] In a preferred embodiment, the module unit body 333 includes a plurality of third battery cells 3331 connected in series, the plurality of third battery cells 3331 are arranged in parallel, and adjacent third battery cells 3331 are arranged in contact with each other.

[0031] In a preferred embodiment, the first fixing frame 331 is provided with an explosion-proof valve slot 3311, and the explosion-proof valve A of each of the third battery cells 3331 is locked in the explosion-proof valve slot 3311, and the explosion-proof valve A is adapted to the explosion-proof valve slot 3311.

[0032] In this embodiment, the long side of the first fixing frame 331 and the third battery cell 3331 are arranged perpendicularly, and the explosion-proof valves of the first fixing frame 331 and the third battery cell 3331 are arranged in parallel. In this way, while effectively fixing the module unit body 333, space can be effectively saved.

[0033] In a preferred embodiment, adjacent third battery cells 3331 within the same module unit body 333 are connected in series via copper busbars 60; the copper busbars 60 are connected to the third battery cells 3331 via screws. This greatly simplifies the connection between battery cells, avoids defects such as poor soldering, significantly reduces space occupation, effectively dissipates heat, and shortens product manufacturing time, making it easy to assemble and disassemble, and resulting in lower production costs.

[0034] In a preferred embodiment, the first battery cell 31, the second battery cell 32, and the third battery cell 3331 have the same structure and size; all three battery cells have plastic casings. The plastic casing provides good insulation, ensures safety and reliability, and effectively saves space. The voltage of all three battery cells can reach 12.8V, and only 20 cells need to be connected in series to meet the high-voltage (256V) requirement.

[0035] In a preferred embodiment, the third battery cell 3331 at one end of each of the two sets of module units 33 is connected in series with the first battery cell 31 via a first connecting line 70; the third battery cell 3331 at the other end of one set of module units 33 is connected in series with the second battery cell 32 via a second connecting line 80, the third battery cell 3331 at the other end of the other set of module units 33 is connected to the first external terminal 40 via a third connecting line 90, and the second battery cell 32 is connected to the second external terminal 50 via a fourth connecting line 100.

[0036] In a preferred embodiment, both the first external terminal 40 and the second external terminal 50 are fixedly connected to the housing 20 by screws; both the first external terminal 40 and the second external terminal 50 are pluggable connection terminals. The polarity of the first external terminal 40 and the second external terminal 50 can be set according to actual usage needs, and their positions can also be set according to actual usage needs (they can be set at the front of the housing or at the rear of the housing to meet different usage requirements). For example, in one embodiment, the first external terminal 40 is a positive connection terminal and the second external terminal 50 is a negative connection terminal; or, in another embodiment, the first external terminal 40 is a negative connection terminal and the second external terminal 50 is a positive connection terminal.

[0037] In a preferred embodiment, the pluggable connection terminal is a Andrew pluggable terminal. This design facilitates plugging and unplugging, effectively meets customer needs, and reduces connection errors.

[0038] In a preferred embodiment, the housing 20 includes a first end plate 21, a second end plate 22, a first side plate 23, a second side plate 24, and a bottom plate 25; the first side plate 23 and the second side plate 24 are respectively disposed on both sides of the bottom plate 25, and the first end plate 21 and the second end plate 22 are respectively disposed at both ends of the bottom plate 25; one end of the first side plate 23 is fixedly connected to the first end plate 21, and the other end is connected to the second end plate 22; one end of the second side plate 24 is fixedly connected to the first end plate 21, and the other end is connected to the second end plate 22.

[0039] In a preferred embodiment, the first end plate 21 and the second end plate 22 are arranged in parallel, and the first side plate 23 and the second side plate 24 are arranged in parallel. This application simplifies the battery structure and component connections by configuring the battery cell module as a module unit, a first battery cell, and a second battery cell, and controlling their relative positions and fixing methods. It employs a combination of copper busbar connections and connecting wire connections to achieve the connection, avoiding defects such as poor soldering. While significantly reducing space occupation and effectively dissipating heat, it also effectively shortens product manufacturing time, is easy to assemble and disassemble, and has low production costs. This utility model has a simple structure, good heat dissipation, convenient assembly and disassembly, easy maintenance, good stability, and is economical, safe, and practical, effectively meeting the needs of actual use.

[0040] This application effectively secures the module unit body using a first and second fixing bracket, significantly reducing the internal space occupied by the securing mechanism. This reduces the overall size of the battery pack while maintaining the same capacity, and also ensures the consistency of the module units during high-rate discharge. The structure allows for upright placement, matching the structure of the individual battery cells and avoiding the risk of short circuits due to leakage. While effectively securing the module unit body, the first and second fixing brackets also facilitate series connection between individual battery cells, further reducing the internal space occupied by securing and series connection, and effectively ensuring the consistency of the module units during high-rate discharge.

[0041] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A high-voltage battery housing structure, characterized in that, The device includes a cover plate, a housing, and a battery cell module. The battery cell module is disposed within the housing, and the cover plate covers the top of the housing. The battery cell module includes a first battery cell, a second battery cell, and at least two sets of module units. The two sets of module units are symmetrically arranged. The first battery cell and the second battery cell are both disposed between the two sets of module units, and the first battery cell and the second battery cell are symmetrically arranged. One end of each of the two sets of module units is connected in series through the first battery cell. One end of one group of the module units is connected in series with the second battery cell, and the other end of the other group of the module units is connected to the first external terminal. The second battery cell is connected to the second external terminal.

2. The high-voltage battery housing structure according to claim 1, characterized in that, Gaps are provided between the cover plate and the module unit, between the module unit and the first battery cell, between the module unit and the second battery cell, and between the first battery cell and the second battery cell.

3. The high-voltage battery housing structure according to claim 1, characterized in that, Each module unit includes a first fixing frame, a second fixing frame, and a module unit body; the second fixing frame is sleeved on the bottom of the module unit body and fixed to the bottom surface of the housing; the first fixing frame is snapped onto the upper part of the module unit body and fixed to the bottom surface of the housing.

4. The high-voltage battery housing structure according to claim 3, characterized in that, The module unit body includes multiple third battery cells connected in series, the multiple third battery cells are arranged in parallel, and adjacent third battery cells are arranged abutting each other.

5. The high-voltage battery housing structure according to claim 4, characterized in that, The first fixing frame is provided with an explosion-proof valve slot, and the explosion-proof valve of each of the third battery cells is locked in the explosion-proof valve slot, and the explosion-proof valve is adapted to the explosion-proof valve slot.

6. The high-voltage battery housing structure according to claim 4, characterized in that, Within the same module unit body, adjacent third battery cells are connected in series via copper busbars; the copper busbars are connected to the third battery cells via screws.

7. The high-voltage battery housing structure according to claim 4, characterized in that, The first, second, and third battery cells have the same structure and size; the first, second, and third battery cells are all battery cells with plastic casings.

8. The high-voltage battery housing structure according to claim 4, characterized in that, The third battery cell at one end of each of the two sets of module units is connected in series with the first battery cell via a first connecting line; the third battery cell at the other end of one set of module units is connected in series with the second battery cell via a second connecting line, the third battery cell at the other end of the other set of module units is connected to the first external terminal via a third connecting line, and the second battery cell is connected to the second external terminal via a fourth connecting line.

9. The high-voltage battery housing structure according to claim 1, characterized in that, Both the first external terminal and the second external terminal are fixedly connected to the housing by screws; both the first external terminal and the second external terminal are plug-in connection terminals.

10. The high-voltage battery housing structure according to claim 1, characterized in that, The enclosure includes a first end plate, a second end plate, a first side plate, a second side plate, and a bottom plate; the first side plate and the second side plate are respectively disposed on both sides of the bottom plate, and the first end plate and the second end plate are respectively disposed at both ends of the bottom plate; one end of the first side plate is fixedly connected to the first end plate, and the other end is connected to the second end plate; one end of the second side plate is fixedly connected to the first end plate, and the other end is connected to the second end plate. The first end plate and the second end plate are arranged in parallel, and the first side plate and the second side plate are arranged in parallel.

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