Lithium battery and air-cooled charging module thereof

Abstract

The application discloses a lithium battery and a wind-cooled charging module thereof, and relates to the technical field of lithium batteries. The lithium battery comprises a battery main body, an electric quantity display device arranged on the battery main body, a negative electrode plug and a positive electrode plug which are connected with the battery main body and are independent of each other, and the electric quantity display device is used for displaying the residual electric quantity of the battery main body. The wind-cooled charging module of the lithium battery comprises a box body, the box body is internally provided with a mounting cavity and a battery containing cavity for accommodating a plurality of lithium batteries, the electric module is mounted in the mounting cavity, a charging plug hole capable of being plugged with the negative electrode plug / positive electrode plug is arranged on the inner wall of the battery containing cavity, the charging plug hole is electrically connected with the electric module, the plurality of lithium batteries are in parallel connection during charging, a fan for heat dissipation during charging of the lithium battery is further arranged on the box body, and the fan is electrically connected with the electric module. The lithium battery can be used in a complex distribution and large-current use scene, and the wind-cooled charging module of the lithium battery can be suitable for the demand of high-power rapid charging.

Description

Technical Field

[0001] This application relates to the field of lithium battery technology, specifically to a lithium battery and its air-cooled charging module. Background Technology

[0002] In the use of lithium batteries, multiple low-voltage lithium batteries are typically connected in series or in series to form a lithium battery module. These modules are then further connected in series or in series to form a high-capacity, high-voltage stack to power the load. To achieve series or series connection, lithium batteries have positive and negative terminals for connection. Currently, the common connection method is to integrate the positive and negative terminals into the same plug. While this design offers high safety, it has limitations in high-current applications and scenarios with complex circuit connections and layouts. Furthermore, if the plug is damaged, the entire positive and negative terminals need to be replaced, increasing usage costs and maintenance difficulty.

[0003] Meanwhile, to enable continuous cycling of lithium batteries, depleted batteries need to be recharged using a charging module. Charging generates a large current, resulting in significant heat and a rapid rise in temperature of both the battery and the charging device. Excessive temperature can compromise the safety of both the battery and the charging device, and existing charging devices are insufficient for high-power, fast, multi-battery charging. Furthermore, due to performance differences, different batteries experience varying degrees of degradation. In series charging mode, the lithium batteries connected in series cannot be fully charged synchronously, leading to overcharging of some batteries and undercharging of others, thus affecting battery lifespan and performance. Utility Model Content

[0004] In view of this, this application provides a lithium battery and its air-cooled charging module to solve the technical problems of existing lithium batteries being inconvenient to use and charging devices being unable to be used for high-power fast charging.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A lithium battery includes a battery body, a power display device disposed on the battery body, a negative plug and a positive plug connected to the battery body and independent of each other, and the power display device is used to display the remaining power of the battery body.

[0007] Furthermore, the battery body is equipped with a handle for easy extraction.

[0008] Furthermore, the power display, negative plug, positive plug, and handle are located on the same side of the battery body.

[0009] In view of the already disclosed lithium batteries, this application also discloses another technical solution:

[0010] A lithium battery air-cooled charging module for charging lithium batteries as described above includes a housing, which has an installation cavity and a battery housing cavity for accommodating multiple lithium batteries. The battery housing cavity has a charging plug hole on its inner wall that can be plugged into a negative plug / positive plug. The charging plug hole is electrically connected to the electrical module, so that multiple lithium batteries are connected in parallel during charging. The housing also has a fan for heat dissipation during lithium battery charging, and the fan is electrically connected to the electrical module.

[0011] Furthermore, a temperature detection device is installed inside the battery housing cavity.

[0012] Furthermore, the top and front sides of the battery housing are open to form battery loading and unloading ports, and the rear side of the battery housing is provided with a through hole for fan installation.

[0013] Furthermore, the bottom surface of the battery housing has a limiting groove for inserting and positioning the lithium battery.

[0014] Furthermore, the extending direction of the limiting groove is parallel to the front side of the battery housing cavity.

[0015] Furthermore, the enclosure is equipped with a visible panel that is electrically connected to the electrical module, and a carrying handle is also provided on the enclosure.

[0016] Furthermore, the enclosure is made of aluminum alloy, and its surface has undergone anodizing treatment.

[0017] As can be seen from the above technical solution, the advantages of this utility model are:

[0018] Technical advantages of lithium batteries:

[0019] Strong scenario adaptability: The positive and negative terminals are set independently, which can flexibly cope with high current and complex circuit connection scenarios and reduce connection limitation issues.

[0020] Low maintenance costs: The plug is independent, so only the damaged part needs to be replaced when it is damaged, instead of replacing the whole thing, thus reducing maintenance costs.

[0021] Power display: The power display shows the remaining power in real time, making it easier for users to plan battery usage and charging.

[0022] Easy to access: Equipped with a handle for easy access to the lithium battery.

[0023] Technical advantages of the charging module:

[0024] High-efficiency charging: The combination of reasonable electrical module design and series charging method meets the needs of high-power, fast, and multi-battery charging.

[0025] Utilizing efficient heat dissipation enhances safety and reliability: Real-time temperature monitoring with a temperature detection device ensures safe charging by implementing heat dissipation protection measures for electrical modules when temperatures exceed the limit; a fan promptly dissipates heat generated during charging, reducing temperature and protecting the battery and charging device; additional materials are used to aid heat dissipation, enhancing heat dissipation performance and extending service life.

[0026] Status visualization: The visual panel intuitively displays charging status, power level, temperature and other information, making it convenient for users to monitor and manage. Attached Figure Description

[0027] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute an undue limitation of this application.

[0028] Figure 1 This is a schematic diagram of the lithium battery structure of this application.

[0029] Figure 2 This is a schematic diagram of the structure of the lithium battery air-cooled charging module of this application. Figure 1 .

[0030] Figure 3 This is a schematic diagram of the structure of the lithium battery air-cooled charging module of this application. Figure 2 .

[0031] Figure 4 This is a schematic diagram of the structure of the lithium battery air-cooled charging module of this application. Figure 3 .

[0032] Explanation of reference numerals in the attached drawings: Battery body 1; Negative plug 11; Positive plug 12; Power display device 13; Handle 14; Housing 2; Battery housing cavity 21; Limiting groove 211; Mounting cavity 22; Handle ring 23; Charging plug hole 24; Cover plate 25; Visible panel 3; Fan 4; Electrical module 5. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of this application clearer, the application will be further described in detail below with reference to the embodiments and accompanying drawings. Here, the illustrative embodiments and their descriptions are used to explain this application, but are not intended to limit it.

[0034] Example

[0035] refer to Figure 1As shown, this embodiment provides a lithium battery 1, which includes a battery body, a power display device 13 disposed on the battery body, and a negative plug 11 and a positive plug 12 connected to the battery body but independent of each other. The battery body is provided with a power detection circuit, and the power display device 13 is connected to it. The power display device 13 is used to display the remaining power of the battery body for easy viewing of the remaining power. The power display device 13 and the power detection circuit are consistent with existing technical solutions, such as those in the fields of electric vehicles, electric bicycles, and power banks. The lithium battery 1 of this utility model adopts an independent negative plug 11 and positive plug 12 design. This design has significant advantages compared to the traditional integrated positive and negative plug design. In scenarios with high current and complex circuits, the independently set positive and negative plugs can better adapt to complex circuit connection requirements and reduce connection problems caused by plug structure limitations. Meanwhile, when the independent plug is partially damaged, only the damaged plug needs to be replaced, without having to replace the entire positive and negative terminals, thus reducing maintenance costs; the power display device 13 allows users to intuitively understand the remaining battery power, making it convenient for users to rationally arrange battery usage and charging time.

[0036] In this embodiment, the battery body is provided with a handle 14 for easy extraction. The design of the handle 14 makes it easier for users to pick up the lithium battery, improving the convenience of use.

[0037] In this embodiment, the power display device 13, the negative plug 11, the positive plug 12, and the handle 14 are all located on the same side of the battery body. This not only makes the lithium battery look neater and more aesthetically pleasing, but also makes it convenient for users to operate and view information from the same location.

[0038] In certain scenarios, high-current power supply is required, and the circuit connection is relatively complex. Using the lithium battery 1 of this invention, the user can easily remove the lithium battery using the handle 14 and carry it to the equipment site. When connecting the circuit, since the negative plug 11 and positive plug 12 are independent, they can be flexibly connected to the equipment circuit, adapting to complex circuit layouts. Simultaneously, the power display device 13 displays the remaining battery power in real time, allowing the user to schedule battery replacement or charging promptly based on the power level.

[0039] Example

[0040] like Figure 2 , Figure 3 and Figure 4As shown, this embodiment discloses a lithium battery air-cooled charging module for use in charging the lithium battery described in Embodiment 1. It includes a housing 2, which has a sealed mounting cavity 22 and a battery receiving cavity 21 for housing multiple lithium batteries 1. The mounting cavity 22 houses the electrical module 5, and the sealed mounting cavity 22 prevents the electrical module 5 from being affected by moisture. The inner wall of the battery receiving cavity 21 has a charging insertion hole 24 that can be plugged into the negative plug 11 / positive plug 12, facilitating the insertion and removal of the lithium batteries 1. The charging insertion hole 24 is electrically connected to the electrical module 5, allowing multiple lithium batteries 1 to be connected in parallel during charging. This series charging method, combined with the reasonable design of the electrical module 5, can meet the needs of high-power, fast, multi-battery charging, ensuring balanced charging within each battery. The housing 2 also has a fan 4 for heat dissipation during lithium battery charging. The fan 4 is electrically connected to the electrical module 5 for convenient automatic control of its operating state. During charging, the fan 4... It can dissipate the heat generated by the battery and charging equipment in a timely manner, effectively reduce the temperature, and ensure the safety of the battery and charging module. The fan 4 can operate at a constant speed or change speed according to the temperature. The electrical module 5 can also provide overcharge protection by monitoring the power level. When the battery power reaches 100%, it will automatically stop charging. The specific structure and working principle of the electrical module 5 are based on existing charging devices.

[0041] Specifically, the charging module's housing 2 is made of aluminum alloy with an anodized surface. Aluminum alloy has advantages such as light weight, high strength, and good heat dissipation, while the anodizing treatment further improves the housing's corrosion resistance and wear resistance, extending the charging module's lifespan.

[0042] In this embodiment, the side wall of the mounting cavity 22 is provided with a window corresponding to the position of the main switch, and the window is provided with an openable cover plate 25 to facilitate the operation of the main switch located in the mounting cavity 22.

[0043] In this embodiment, a temperature detection device is installed inside the battery housing 21. This device can monitor the temperature change of the battery housing 21 in real time during battery charging, indirectly monitoring the temperature status of the lithium battery 1 during charging. Once the temperature exceeds the set safety range, the electrical module 5 can take corresponding protective measures in a timely manner, such as turning on the fan 4 to quickly cool the battery when the temperature is too high, thus solving the problem of excessively high temperature during fast charging of high-power lithium batteries. It can also be combined with other measures, such as reducing the charging current or stopping charging, to ensure the safety and reliability of the charging process.

[0044] When the lithium battery air-cooled charging module does not have a temperature detection device, in order to ensure the safety and reliability of the charging process, the fan 4 starts working as soon as the charging module starts charging until charging is complete.

[0045] In this embodiment, the temperature detection device is preferably a temperature sensor from the prior art.

[0046] In this embodiment, the housing 2 is equipped with a visible panel 3 electrically connected to the electrical module 5, and a carrying handle 23. Users can intuitively understand the charging status, battery level, temperature, and other information through the visible panel 3, facilitating monitoring and management of the charging process. The carrying handle 23 also makes it easy for users to move and carry the charging module.

[0047] In this embodiment, the top and front sides of the battery housing cavity 21 are open to form a battery insertion and removal port, which allows the user to put in or take out the lithium battery 1; the rear side of the battery housing cavity 21 is provided with a through hole for the installation of the fan 4, which provides space for the installation of the fan 4 and allows the battery housing cavity 21 to communicate with the outside, resulting in good heat dissipation.

[0048] Specifically, the housing 2 has a rear side wall, a left side wall, a right side wall, and a bottom wall. A platform extending along the edge is provided on the rear side wall of the housing 2. The width of the platform is less than the width of the housing 2. A battery receiving cavity 21 is formed between the rear side wall, the left side wall, the right side wall, and the bottom wall of the housing 2. The visible panel 3 and the charging plug hole 24 are set on the platform. The fan 4 is installed on the rear side wall of the housing 2. An installation cavity 22 is provided in the left side wall.

[0049] In this embodiment, the bottom surface of the battery housing cavity 21 has a limiting groove 211 for inserting and limiting the lithium battery 1. This ensures that the lithium battery remains stable and reliable when placed into the battery housing cavity, and is not easily displaced or tipped over.

[0050] In this embodiment, the extending direction of the limiting groove 211 is parallel to the front side of the battery receiving cavity 21, and the limiting groove 211 is perpendicular to the axis of the fan 4. By limiting the direction of the limiting groove 211 to restrict the arrangement direction of the lithium battery 1, it can be ensured that there is no interference with other lithium batteries 1 when the lithium battery 1 is picked up, making it convenient to pick up the lithium battery 1. There is a gap between two adjacent lithium batteries 1, and multiple gaps are parallel to each other, which can ensure that the flowing cold air passes through the multiple gaps in parallel, and the cold air is in full contact with the lithium battery 1, resulting in good heat dissipation.

[0051] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to the embodiments of this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A lithium battery, characterized in that, The lithium battery (1) includes a battery body, a power display device (13) disposed on the battery body, a negative plug (11) and a positive plug (12) connected to the battery body and independent of each other, and the power display device (13) is used to display the remaining power of the battery body.

2. The lithium battery according to claim 1, characterized in that, The battery body is provided with a handle (14) for easy extraction.

3. The lithium battery according to claim 2, characterized in that, The power display device (13), negative plug (11), positive plug (12) and handle (14) are located on the same side of the battery body.

4. A lithium battery air-cooled charging module for charging a lithium battery as described in any one of claims 1 to 3, characterized in that, The enclosure includes a housing (2), which has an installation cavity (22) and a battery housing cavity (21) for accommodating multiple lithium batteries (1). The electrical module (5) is installed in the installation cavity (22). The inner wall of the battery housing cavity (21) is provided with a charging plug hole (24) that can be plugged into the negative plug (11) / positive plug (12). The charging plug hole (24) is electrically connected to the electrical module (5) so that the multiple lithium batteries (1) are connected in parallel during charging. The housing (2) is also provided with a fan (4) for heat dissipation during charging of the lithium batteries (1). The fan (4) is electrically connected to the electrical module (5).

5. The lithium battery air-cooled charging module according to claim 4, characterized in that, A temperature detection device is provided inside the battery housing cavity (21).

6. The lithium battery air-cooled charging module according to claim 4, characterized in that, The top and front sides of the battery housing (21) are open to form a battery loading and unloading port, and the rear side of the battery housing (21) is provided with a through hole for the installation of the fan (4).

7. The lithium battery air-cooled charging module according to claim 6, characterized in that, The bottom surface of the battery housing (21) has a limiting groove (211) for the lithium battery (1) to be inserted and limited.

8. The lithium battery air-cooled charging module according to claim 7, characterized in that, The extending direction of the limiting groove (211) is parallel to the front side of the battery receiving cavity (21).

9. The lithium battery air-cooled charging module according to claim 4, characterized in that, The housing (2) is provided with a visible panel (3) that is electrically connected to the electrical module (5), and the housing (2) is provided with a handle ring (23).

10. The lithium battery air-cooled charging module according to claim 4, characterized in that, The box body (2) is made of aluminum alloy, and the surface of the box body (2) has been anodized.

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