Power battery based on cylindrical battery cell

Abstract

The utility model relates to a power battery based on a cylindrical battery cell. According to the technical scheme, the power battery comprises a shell, a cylindrical battery cell group is arranged in the shell; a frame is fixed in the shell; the fixed frame is arranged on the outer side of the cylindrical battery cell group; a control module is arranged on the fixed frame; the control module is electrically connected with the cylindrical battery cell group; an output assembly is arranged on the shell; the output assembly is electrically connected with the control module; according to the invention, the cylindrical battery cell group is fixed through the fixing frame, so that the cylindrical battery cell group can be conveniently mounted in the shell.

Description

Technical Field

[0001] This utility model relates to the field of power supply technology, and more specifically, to a power battery based on cylindrical cells. Background Technology

[0002] A power battery is a power source that provides power to tools, primarily referring to the batteries that power electric vehicles, electric trains, electric bicycles, and golf carts. In the automotive and motorcycle industries, they mainly provide electrical energy for starting and igniting engines and for the use of onboard electronic equipment. In industrial power systems, they are used in transmission and transformation stations to provide closing current for power units, as well as for providing backup power for public utilities and communication. In the electric vehicle and electric bicycle industries, they can replace gasoline and diesel as the power source for electric vehicles or electric bicycles.

[0003] Existing power batteries generally employ a square battery structure composed of multiple cylindrical cells arranged in a prismatic configuration, or a prismatic battery structure composed of square stacked or wound cores. With a square core structure, the spacing between the positive and negative electrodes is difficult to control during the winding process, affecting the battery's operating state, conductivity, performance, and lifespan. While a cylindrical core structure offers a more reliable winding process, easier core winding, and better control over electrode spacing without affecting performance and conductivity, it suffers from poor heat dissipation, larger volume due to gaps between the cylindrical cells, and installation inconvenience. Therefore, there is still room for improvement. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a power battery based on cylindrical cells to solve the above-mentioned technical problems.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a power battery based on cylindrical cells, comprising: a housing; a cylindrical cell assembly disposed within the housing; a fixing frame disposed within the housing; the fixing frame disposed outside the cylindrical cell assembly; a control module disposed on the fixing frame; the control module being electrically connected to the cylindrical cell assembly; and an output component disposed on the housing; the output component being electrically connected to the control module.

[0006] Specifically, during the assembly of the power battery, cylindrical cell packs are placed inside the casing and secured with a fixing frame. The control module is then fixed to the fixing frame, making it electrically connected to the cylindrical cell pack and outputting the corresponding voltage through the output component. Secured by the fixing frame, the cylindrical cell packs are easily installed inside the casing.

[0007] Optionally, the cylindrical battery cell assembly includes: a battery cell mounting frame; a plurality of cylindrical batteries disposed on the battery cell mounting frame; an electrode connection plate disposed on the battery cell mounting frame; the electrode connection plate connecting the positive and negative electrodes of the plurality of cylindrical batteries; a positive output plate and a negative output plate also disposed on the battery cell mounting frame; the positive output plate being connected to the positive electrode of the cylindrical battery cell; the negative output plate being connected to the negative electrode of the cylindrical battery cell; and both the positive and negative output plates being electrically connected to the control module.

[0008] Specifically, the cell mounting bracket has several mounting holes corresponding to the cylindrical cells. There are two cell mounting brackets, one for each end of a cylindrical cell. Several cylindrical cells are assembled using these two brackets. Limiting plates are installed on the mounting brackets to restrict the position of the cylindrical cells at both ends. The cylindrical cells are grouped into sets of four and sequentially rotated on the mounting bracket. Each group of cylindrical cells is connected in series via electrode connecting plates. A positive output plate and a negative output plate are respectively installed on the first and last cylindrical cells to output the corresponding voltage.

[0009] Optionally, the cylindrical battery cell assembly further includes: a plurality of epoxy boards; the plurality of epoxy boards enclosing a mounting cavity; and the battery cell mounting frame and the plurality of cylindrical battery cells are all disposed within the mounting cavity.

[0010] Specifically, the epoxy board consists of six pieces that together form a cuboid. After placing the two battery cell mounting brackets containing the cylindrical battery cells inside the mounting cavity, the epoxy board can isolate and protect the cylindrical battery cells.

[0011] Optionally, a buffer block is provided on the battery cell mounting bracket; the epoxy board is disposed on the buffer block.

[0012] By setting buffer blocks, a gap is created between the epoxy board and the two electrodes of the cylindrical cell, effectively preventing the epoxy board from contacting the electrode connection plate, positive output plate, and negative output plate.

[0013] Optionally, the fixing frame includes: a transverse stop and a longitudinal stop; the transverse stop is disposed on the inner wall of the housing and at both ends of the cylindrical cell assembly; the longitudinal stop is disposed on the inner wall of the housing and on both sides of the cylindrical cell assembly.

[0014] By setting lateral stops, the lateral position of the cylindrical battery cell assembly can be limited, preventing lateral displacement of the cylindrical battery cell assembly. By setting longitudinal stops, the longitudinal position of the cylindrical battery cell assembly can be limited, preventing longitudinal displacement of the cylindrical battery cell assembly.

[0015] Optionally, the control module includes: an isolation plate; the isolation plate is disposed at the upper end of the longitudinal stop; a control board is disposed on the isolation plate; the control board is electrically connected to the cylindrical battery cell assembly and the output component.

[0016] Specifically, the isolation plate is placed on the longitudinal stop, and there is a gap between the control board and the isolation plate, which can effectively isolate the control board and the cylindrical battery cell. The control board is connected to the positive and negative output boards and outputs the corresponding voltage to the output components to provide power.

[0017] Optionally, the output component includes: a terminal block and a protective sleeve; the terminal block is electrically connected to the control module; and the protective sleeve is detachably connected to the terminal block.

[0018] Specifically, the control module is connected via terminal blocks and powered by external electrical appliances. The protective sleeve protects the power supply connection points of the terminal blocks.

[0019] Optionally, the terminal block is provided with a fitting part; a guide groove is provided on the protective sleeve; the fitting part is slidably connected to the guide groove.

[0020] When power is needed for external electrical appliances, first separate the fitting part from the guide groove, and then separate the protective sleeve from the terminal block, so that the external electrical appliance can be plugged into the terminal block. After power is supplied, the external electrical appliance can be unplugged, and the protective sleeve can be put back on the fitting part to protect the terminal block.

[0021] Optionally, a lifting assembly may also be provided on the housing.

[0022] Specifically, the lifting assembly includes a mounting base and a handle. The mounting base is mounted on the housing, and the handle is rotatably connected to the mounting base. When needed, the power battery can be easily moved using the handle.

[0023] In summary, this utility model has the following beneficial effects: When assembling a power battery, the cylindrical cell assembly is placed inside the housing and fixed by a fixing frame. Then, the control module is fixed to the fixing frame, making the control module electrically connected to the cylindrical cell assembly and outputting the corresponding voltage through the output component. Fixing the cylindrical cell assembly with the fixing frame facilitates its installation inside the housing. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0025] Figure 2 This is an exploded structural diagram of the present invention;

[0026] Figure 3This is a cross-sectional structural schematic diagram of the present invention;

[0027] Figure 4 This is a cross-sectional structural schematic diagram of the present invention from another perspective.

[0028] In the diagram: 1. Housing; 2. Cylindrical cell assembly; 21. Cell mounting bracket; 22. Cylindrical cell; 23. Electrode connection plate; 24. Epoxy board; 3. Fixing frame; 31. Horizontal stop; 32. Vertical stop; 4. Control module; 41. Isolation plate; 42. Control board; 5. Output assembly; 51. Terminal block; 52. Protective sleeve; 6. Positive output board; 7. Negative output board; 8. Buffer block; 9. Fitting part; 10. Guide groove; 11. Lifting assembly. Detailed Implementation

[0029] To make the objectives, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model are described in detail below with reference to the accompanying drawings. Several embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein.

[0030] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., 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; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances. The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature.

[0031] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0032] Example 1

[0033] This embodiment provides a power battery based on cylindrical cell 22, such as Figure 1-4 As shown, it includes: a housing 1; a cylindrical battery cell assembly 2 disposed inside the housing 1; a fixing frame 3 disposed inside the housing 1; the fixing frame 3 disposed outside the cylindrical battery cell assembly 2; a control module 4 disposed on the fixing frame 3; the control module 4 being electrically connected to the cylindrical battery cell assembly 2; and an output component 5 disposed on the housing 1; the output component 5 being electrically connected to the control module 4.

[0034] Specifically, during the assembly of the power battery, the cylindrical cell assembly 2 is placed inside the housing 1 and fixed by the fixing frame 3. Then, the control module 4 is fixed to the fixing frame 3, making the control module 4 electrically connected to the cylindrical cell assembly 2, and outputting the corresponding voltage through the output component 5. Fixing the cylindrical cell assembly 2 by the fixing frame 3 facilitates its installation inside the housing 1.

[0035] Optionally, the cylindrical battery cell assembly 2 includes: a battery cell mounting frame 21; a plurality of cylindrical batteries 22 are disposed on the battery cell mounting frame 21; an electrode connecting plate 23 is disposed on the battery cell mounting frame 21; the electrode connecting plate 23 connects the positive and negative electrodes of the plurality of cylindrical batteries 22; a positive output plate 6 and a negative output plate 7 are also disposed on the battery cell mounting frame 21; the positive output plate 6 is connected to the positive electrode of the cylindrical battery cell 22; the negative output plate 7 is connected to the negative electrode of the cylindrical battery cell 22; both the positive output plate 6 and the negative output plate 7 are electrically connected to the control module 4.

[0036] Specifically, the cell mounting bracket 21 has several mounting holes corresponding to the cylindrical cells 22. Two cell mounting brackets 21 are provided, each supporting one end of a cylindrical cell 22. Several cylindrical cells 22 are assembled using the two mounting brackets 21. Limiting baffles are provided on the cell mounting brackets 21 to restrict the position of the ends of the cylindrical cells 22. The cylindrical cells 22 are grouped into sets of four and sequentially rotated on the cell mounting bracket 21. Each group of cylindrical cells 22 is connected in series via an electrode connecting plate 23. A positive output plate 6 and a negative output plate 7 are respectively provided on the first and last cylindrical cells 22 to output the corresponding voltage.

[0037] Optionally, the cylindrical battery cell assembly 2 further includes: a plurality of epoxy boards 24; the plurality of epoxy boards 24 enclosing a mounting cavity; the battery cell mounting frame 21 and the plurality of cylindrical battery cells 22 are all disposed within the mounting cavity.

[0038] Specifically, the epoxy board 24 has six pieces that together form a cuboid. After the two battery cell mounting brackets 21 on which the cylindrical battery cells 22 are installed are placed in the mounting cavity, the epoxy board 24 can isolate and protect the cylindrical battery cells 22.

[0039] Optionally, a buffer block 8 is provided on the battery cell mounting bracket 21; the epoxy board 24 is disposed on the buffer block 8.

[0040] By setting the buffer block 8, a gap is created between the epoxy plate 24 and the two electrodes of the cylindrical cell 22, effectively preventing the epoxy plate 24 from contacting the electrode connection plate 23, the positive output plate 6, and the negative output plate 7.

[0041] Optionally, the fixing frame 3 includes: a transverse stop 31 and a longitudinal stop 32; the transverse stop 31 is disposed on the inner wall of the housing 1 and at both ends of the cylindrical cell assembly 2; the longitudinal stop 32 is disposed on the inner wall of the housing 1 and at both sides of the cylindrical cell assembly 2.

[0042] By setting the lateral stop 31, the lateral position of the cylindrical cell assembly 2 can be limited, thus preventing the cylindrical cell assembly 2 from shifting laterally. By setting the longitudinal stop 32, the longitudinal position of the cylindrical cell assembly 2 can be limited, thus preventing the cylindrical cell assembly 2 from shifting longitudinally.

[0043] Optionally, the control module 4 includes: an isolation plate 41; the isolation plate 41 is disposed at the upper end of the longitudinal stop 32; a control plate 42 is disposed on the isolation plate 41; the control plate 42 is electrically connected to the cylindrical battery cell assembly 2 and the output assembly 5.

[0044] Specifically, the isolation plate 41 is placed on the longitudinal stop 32, and there is a gap between the control board 42 and the isolation plate 41, which can effectively isolate the control board 42 and the cylindrical cell 22. The control board 42 is connected to the positive output board 6 and the negative output board 7, and outputs the corresponding voltage to the output component 5 to realize power supply.

[0045] Optionally, the output component 5 includes: a terminal block 51 and a protective sleeve 52; the terminal block 51 is electrically connected to the control module 4; the protective sleeve 52 is detachably connected to the terminal block 51.

[0046] Specifically, the control module 4 is connected to the terminal block 51 and powered by external electrical appliances. The protective cover 52 can protect the power supply connection of the terminal block 51.

[0047] Example 2

[0048] This embodiment provides a power battery based on cylindrical cell 22, such as Figure 1-4 As shown, it includes: a housing 1; a cylindrical battery cell assembly 2 disposed inside the housing 1; a fixing frame 3 disposed inside the housing 1; the fixing frame 3 disposed outside the cylindrical battery cell assembly 2; a control module 4 disposed on the fixing frame 3; the control module 4 being electrically connected to the cylindrical battery cell assembly 2; and an output component 5 disposed on the housing 1; the output component 5 being electrically connected to the control module 4.

[0049] Specifically, during the assembly of the power battery, the cylindrical cell assembly 2 is placed inside the housing 1 and fixed by the fixing frame 3. Then, the control module 4 is fixed to the fixing frame 3, making the control module 4 electrically connected to the cylindrical cell assembly 2, and outputting the corresponding voltage through the output component 5. Fixing the cylindrical cell assembly 2 by the fixing frame 3 facilitates its installation inside the housing 1.

[0050] Optionally, the cylindrical battery cell assembly 2 includes: a battery cell mounting frame 21; a plurality of cylindrical batteries 22 are disposed on the battery cell mounting frame 21; an electrode connecting plate 23 is disposed on the battery cell mounting frame 21; the electrode connecting plate 23 connects the positive and negative electrodes of the plurality of cylindrical batteries 22; a positive output plate 6 and a negative output plate 7 are also disposed on the battery cell mounting frame 21; the positive output plate 6 is connected to the positive electrode of the cylindrical battery cell 22; the negative output plate 7 is connected to the negative electrode of the cylindrical battery cell 22; both the positive output plate 6 and the negative output plate 7 are electrically connected to the control module 4.

[0051] Specifically, the cell mounting bracket 21 has several mounting holes corresponding to the cylindrical cells 22. Two cell mounting brackets 21 are provided, each supporting one end of a cylindrical cell 22. Several cylindrical cells 22 are assembled using the two mounting brackets 21. Limiting baffles are provided on the cell mounting brackets 21 to restrict the position of the ends of the cylindrical cells 22. The cylindrical cells 22 are grouped into sets of four and sequentially rotated on the cell mounting bracket 21. Each group of cylindrical cells 22 is connected in series via an electrode connecting plate 23. A positive output plate 6 and a negative output plate 7 are respectively provided on the first and last cylindrical cells 22 to output the corresponding voltage.

[0052] Optionally, the cylindrical battery cell assembly 2 further includes: a plurality of epoxy boards 24; the plurality of epoxy boards 24 enclosing a mounting cavity; the battery cell mounting frame 21 and the plurality of cylindrical battery cells 22 are all disposed within the mounting cavity.

[0053] Specifically, the epoxy board 24 has six pieces that together form a cuboid. After the two battery cell mounting brackets 21 on which the cylindrical battery cells 22 are installed are placed in the mounting cavity, the epoxy board 24 can isolate and protect the cylindrical battery cells 22.

[0054] Optionally, a buffer block 8 is provided on the battery cell mounting bracket 21; the epoxy board 24 is disposed on the buffer block 8.

[0055] By setting the buffer block 8, a gap is created between the epoxy plate 24 and the two electrodes of the cylindrical cell 22, effectively preventing the epoxy plate 24 from contacting the electrode connection plate 23, the positive output plate 6, and the negative output plate 7.

[0056] Optionally, the fixing frame 3 includes: a transverse stop 31 and a longitudinal stop 32; the transverse stop 31 is disposed on the inner wall of the housing 1 and at both ends of the cylindrical cell assembly 2; the longitudinal stop 32 is disposed on the inner wall of the housing 1 and at both sides of the cylindrical cell assembly 2.

[0057] By setting the lateral stop 31, the lateral position of the cylindrical cell assembly 2 can be limited, thus preventing the cylindrical cell assembly 2 from shifting laterally. By setting the longitudinal stop 32, the longitudinal position of the cylindrical cell assembly 2 can be limited, thus preventing the cylindrical cell assembly 2 from shifting longitudinally.

[0058] Optionally, the control module 4 includes: an isolation plate 41; the isolation plate 41 is disposed at the upper end of the longitudinal stop 32; a control plate 42 is disposed on the isolation plate 41; the control plate 42 is electrically connected to the cylindrical battery cell assembly 2 and the output assembly 5.

[0059] Specifically, the isolation plate 41 is placed on the longitudinal stop 32, and there is a gap between the control board 42 and the isolation plate 41, which can effectively isolate the control board 42 and the cylindrical cell 22. The control board 42 is connected to the positive output board 6 and the negative output board 7, and outputs the corresponding voltage to the output component 5 to realize power supply.

[0060] Optionally, the output component 5 includes: a terminal block 51 and a protective sleeve 52; the terminal block 51 is electrically connected to the control module 4; the protective sleeve 52 is detachably connected to the terminal block 51.

[0061] Specifically, the control module 4 is connected to the terminal block 51 and powered by external electrical appliances. The protective cover 52 can protect the power supply connection of the terminal block 51.

[0062] Optionally, the terminal block 51 is provided with a fitting part 9; the protective sleeve 52 is provided with a guide groove 10; the fitting part 9 is slidably connected to the guide groove 10.

[0063] When power is needed to supply power to external electrical appliances, first separate the fitting part 9 from the guide groove 10, and separate the protective sleeve 52 from the terminal 51, so that the external electrical appliance can be plugged into the terminal 51. After power supply is completed, the external electrical appliance can be unplugged, and the protective sleeve 52 can be put on the fitting part 9 to protect the terminal 51.

[0064] Optionally, a lifting assembly 11 is also provided on the housing 1.

[0065] Specifically, the lifting assembly 11 includes a mounting base and a handle. The mounting base is mounted on the housing 1, and the handle is rotatably connected to the mounting base. When needed, the power battery can be easily moved using the handle.

[0066] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A power battery based on cylindrical cells, characterized in that, include: A housing; a cylindrical battery cell assembly disposed within the housing; a fixing frame disposed within the housing; the fixing frame disposed outside the cylindrical battery cell assembly; a control module disposed on the fixing frame; the control module being electrically connected to the cylindrical battery cell assembly; an output component disposed on the housing; the output component being electrically connected to the control module.

2. A power battery based on cylindrical cells according to claim 1, characterized in that, The cylindrical battery cell assembly includes: a cell mounting frame; a plurality of cylindrical battery cells disposed on the cell mounting frame; an electrode connection plate disposed on the cell mounting frame; the electrode connection plate connecting the positive and negative terminals of the plurality of cylindrical battery cells; a positive output plate and a negative output plate disposed on the cell mounting frame; the positive output plate being connected to the positive terminal of the cylindrical battery cell; the negative output plate being connected to the negative terminal of the cylindrical battery cell; and both the positive and negative output plates being electrically connected to the control module.

3. A power battery based on cylindrical cells according to claim 2, characterized in that, The cylindrical battery cell assembly further includes: several epoxy boards; several epoxy boards enclosing a mounting cavity; the battery cell mounting frame and several cylindrical battery cells are all disposed within the mounting cavity.

4. A power battery based on cylindrical cells according to claim 3, characterized in that, A buffer block is provided on the battery cell mounting frame; the epoxy board is placed on the buffer block.

5. A power battery based on cylindrical cells according to claim 1, characterized in that, The fixing frame includes: a transverse stop and a longitudinal stop; the transverse stop is disposed on the inner wall of the housing and at both ends of the cylindrical cell assembly; the longitudinal stop is disposed on the inner wall of the housing and on both sides of the cylindrical cell assembly.

6. A power battery based on cylindrical cells according to claim 5, characterized in that, The control module includes: an isolation plate; the isolation plate is disposed at the upper end of the longitudinal stop; a control board is disposed on the isolation plate; the control board is electrically connected to the cylindrical battery cell assembly and the output component.

7. A power battery based on cylindrical cells according to claim 1, characterized in that, The output component includes: a terminal block and a protective sleeve; the terminal block is electrically connected to the control module; the protective sleeve is detachably connected to the terminal block.

8. A power battery based on cylindrical cells according to claim 7, characterized in that, The terminal block is provided with a fitting part; the protective sleeve is provided with a guide groove; the fitting part is slidably connected to the guide groove.

9. A power battery based on cylindrical cells according to claim 1, characterized in that, A lifting assembly is also provided on the housing.

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