Charger baby circuit board convenient for fixing lithium battery core

Abstract

The utility model provides a charge pal circuit board convenient for fixing a lithium cell, which relates to the technical field of mobile power supplies, and comprises a board body, a groove is arranged on the upper surface of the board body, a cell bin is fixed on the inner wall of the groove, a cell body is arranged on the inner wall of the cell bin, a clamping seat corresponding to the cell body is arranged on the inner wall of the cell bin, and the clamping seat is fixed on the upper surface of the board body. A spring and a convex block are fixed on the inner wall of the clamping seat, the battery cell body is clamped with the clamping seat, and clamping blocks are fixed on the left side surface and the right side surface of the battery cell bin. According to the power bank circuit board convenient for fixing the lithium battery cell, by arranging the battery cell bin, placing the battery cell body in the battery cell bin, clamping the battery cell body through a spring and a convex block, and by arranging clamping blocks, two ends of a baffle plate are clamped with the battery cell bin through the clamping blocks, so that the stability of the battery cell body is maintained; the problem that in the prior art, the installation stability of the battery cell of a common detachable battery cell type power bank is poor is solved.

Description

Technical Field

[0001] This utility model relates to a power bank circuit board, specifically a power bank circuit board that facilitates the fixing of lithium battery cells, and belongs to the field of mobile power technology. Background Technology

[0002] Power banks, also known as portable power banks, come in two main types: those that use nickel-zinc dry cell batteries and those that use reusable rechargeable batteries. Each type has its own characteristics. Power banks that use nickel-zinc dry cell batteries can provide power continuously as long as there are enough batteries. The biggest advantage of power banks that use rechargeable batteries is that they rarely need to be replaced, but the power they provide is also very limited, as they are constrained by the rechargeable batteries, and the rechargeable batteries require a long charging time.

[0003] To address the aforementioned issues and combine the features of both types of power banks, a new type of power bank has been developed. Its battery cells can be replaced when depleted, or when the power bank is electrically connected to a power source, the depleted battery can be directly charged by the power source without being removed. The removed depleted battery can be directly charged by a battery charging device, thus integrating charging and battery swapping technologies into one system.

[0004] However, this type of power bank also has certain drawbacks when used. Because its lithium battery is a detachable battery, the installation of the lithium battery cannot be the fixed installation method used in common power bank batteries. This means that when using the power bank, the stability of the lithium battery needs to be considered while making it easy to remove. Common detachable battery cell power banks have poor battery cell installation stability.

[0005] Therefore, a power bank circuit board that facilitates the fixing of lithium battery cells is proposed here. Utility Model Content

[0006] This invention proposes a power bank circuit board that facilitates the fixing of lithium battery cells, thereby solving the problem of poor installation stability of battery cells in existing detachable battery cell power banks.

[0007] This utility model is achieved through the following technical solution: a power bank circuit board for easy fixing of lithium battery cells, including a board body, a groove is formed on the upper surface of the board body, a battery cell compartment is fixed in the inner wall of the groove, a battery cell body is provided in the inner wall of the battery cell compartment, a card holder corresponding to the battery cell body is formed in the inner wall of the battery cell compartment, a spring and a protrusion are fixed in the inner wall of the card holder, the battery cell body is engaged with the card holder, card blocks are fixed on both the left and right sides of the battery cell compartment, a baffle is provided on the upper surface of the battery cell compartment, and the two ends of the baffle are engaged with the battery cell compartment through card blocks.

[0008] Multiple thermally conductive copper plates are installed on the bottom surface of the battery cell compartment. Silicone grease is applied between the thermally conductive copper plates and the battery cell compartment. Heat dissipation fins are fixed on the bottom surface of the thermally conductive copper plates. Ventilation ports are opened on the side of the heat dissipation fins. The heat from the battery cell compartment can be transferred to the heat dissipation fins through the thermally conductive copper plates.

[0009] Two bases are fixed to the bottom surface of the plate. The size of the bases is larger than that of the heat dissipation fins. The bases can prevent the heat dissipation fins from touching the power bank shell during installation.

[0010] A miniature air pump is installed on the bottom surface of the plate, and multiple exhaust ports are installed on the upper surface of the base on the left side. The output end of the exhaust port is aligned with the heat dissipation fins, and the output end of the miniature air pump is connected to the exhaust port through a pipe.

[0011] The height of the micro air pump is less than the height of the base. The micro air pump is electrically connected to a control chip mounted on the upper surface of the board. The micro air pump can be turned on and off by the control chip.

[0012] Two connectors are mounted on the upper surface of the plate. A USB interface and a Type-C interface are mounted on the side of the connectors. The power bank can be charged and discharged through the USB interface and the Type-C interface.

[0013] Various chips and capacitors are mounted on the upper surface of the plate, and the height of the chips and capacitors is lower than the height of the battery cell compartment.

[0014] This utility model provides a power bank circuit board that facilitates the fixing of lithium battery cells, and its beneficial effects are as follows:

[0015] 1. This power bank circuit board, which facilitates the fixing of lithium battery cells, has a battery cell compartment. The battery cell body is placed inside the battery cell compartment and secured by springs and protrusions. At the same time, by setting a locking block, the two ends of the baffle are locked to the battery cell compartment, thereby maintaining the stability of the battery cell body. This solves the problem of poor installation stability of battery cells in existing detachable battery cell power banks.

[0016] 2. This power bank circuit board, which facilitates the fixing of lithium battery cells, features a heat-conducting copper plate. This plate transfers heat from the battery cell compartment to the heat dissipation fins. A control chip controls the opening and closing of a micro air pump, which pumps air to the exhaust port. The exhaust port then blows the air onto the heat dissipation fins, cooling them and reducing the temperature of the battery cell. This ensures that the battery cell can perform high-power charging and discharging while maintaining its stability during the charging and discharging process. Attached Figure Description

[0017] Figure 1This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a bottom view of the plate body of this utility model;

[0019] Figure 3 This is a schematic diagram of the battery cell compartment of this utility model;

[0020] Figure 4 This is a sectional view of the side view of the base of this utility model.

[0021] Explanation of reference numerals in the attached figures

[0022] 1. Board body; 2. Cell compartment; 3. Cell body; 4. Card slot; 5. Spring; 6. Protrusion; 7. Card block; 8. Baffle; 9. Thermally conductive copper plate; 10. Heat dissipation fins; 11. Base; 12. Miniature air pump; 13. Exhaust port; 14. Connector; 15. USB interface; 16. Type-C interface. Detailed Implementation

[0023] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this application.

[0024] Please see Figures 1-4 The present invention proposes the following implementation scheme: a power bank circuit board for easy fixing of lithium battery cells, including a board body 1, a groove is formed on the upper surface of the board body 1, a battery cell compartment 2 is fixed in the inner wall of the groove, a battery cell body 3 is provided in the inner wall of the battery cell compartment 2, a card seat 4 corresponding to the battery cell body 3 is formed in the inner wall of the battery cell compartment 2, a spring 5 and a protrusion 6 are fixed in the inner wall of the card seat 4, the battery cell body 3 is engaged with the card seat 4, a card block 7 is fixed on both the left and right sides of the battery cell compartment 2, a baffle 8 is provided on the upper surface of the battery cell compartment 2, and the two ends of the baffle 8 are engaged with the battery cell compartment 2 through the card blocks 7.

[0025] Please refer to this carefully. Figure 1 , Figure 2 and Figure 3 Multiple heat-conducting copper plates 9 are installed on the bottom surface of the battery compartment 2. Silicone grease is applied between the heat-conducting copper plates 9 and the battery compartment 2. Heat dissipation fins 10 are fixed on the bottom surface of the heat-conducting copper plates 9. Ventilation ports are opened on the side of the heat dissipation fins 10. The heat of the battery compartment 2 can be transferred to the heat dissipation fins 10 through the heat-conducting copper plates 9. Two bases 11 are fixed on the bottom surface of the plate body 1. The size of the bases 11 is larger than the size of the heat dissipation fins 10. The bases 11 can prevent the heat dissipation fins 10 from touching the power bank shell during installation.

[0026] Please refer to this carefully. Figure 1 , Figure 2 and Figure 3 A miniature air pump 12 is installed on the bottom surface of the board 1. Multiple exhaust ports 13 are installed on the upper surface of the base 11 on the left side. The output end of the exhaust port 13 is aligned with the heat dissipation fins 10. The output end of the miniature air pump 12 is connected to the exhaust port 13 through a pipe. The height of the miniature air pump 12 is less than the height of the base 11. The miniature air pump 12 is electrically connected to the control chip installed on the upper surface of the board 1. The opening and closing of the miniature air pump 12 can be controlled by the control chip.

[0027] Please refer to this carefully. Figure 1 , Figure 2 and Figure 3 Two connectors 14 are installed on the upper surface of the board 1. A USB interface 15 and a Type-C interface 16 are installed on the side of the connectors 14. The power bank can be charged and discharged through the USB interface 15 and the Type-C interface 16. Various chips and capacitors are installed on the upper surface of the board 1. The height of the chips and capacitors is lower than the height of the battery compartment 2.

[0028] In use, this utility model is designed so that the battery cell body 3 is placed inside the battery cell compartment 2, and the battery cell body 3 is secured by the spring 5 and the protrusion 6. At the same time, by setting the locking block 7, the two ends of the baffle 8 are secured to the battery cell compartment 2, thereby maintaining the stability of the battery cell body 3. This solves the problem of poor installation stability of the battery cells in the existing detachable battery cell power banks.

[0029] By setting a heat-conducting copper plate 9, the heat of the battery cell compartment 2 can be transferred to the heat dissipation fins 10. The micro air pump 12 can be controlled by the control chip. When the power bank is charging and discharging, the temperature of the battery cell body 3 will rise. Prolonged high temperature will affect the safety of the battery cell body 3. For ordinary power banks, in order to avoid the high temperature from affecting the battery cell body 3, the charging and discharging power of the battery cell body 3 is limited in the design. In this solution, during the charging and discharging process of the battery cell body 3, the control chip controls the micro air pump 12 to turn on. The micro air pump 12 pumps air to the exhaust port 13. The exhaust port 13 exhausts the air and blows it to the heat dissipation fins 10 to cool the heat dissipation fins 10, thereby reducing the temperature of the battery cell body 3. This ensures that the battery cell body 3 can carry out high-power charging and discharging while maintaining the stability of the battery cell body 3 during the charging and discharging process.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A power bank circuit board for easy fixing of lithium battery cells, comprising a board body (1), characterized in that: The upper surface of the plate (1) is provided with a groove, and the inner wall of the groove is fixed with a cell compartment (2). The inner wall of the cell compartment (2) is provided with a cell body (3). The inner wall of the cell compartment (2) is provided with a card seat (4) corresponding to the cell body (3). The inner wall of the card seat (4) is fixed with a spring (5) and a protrusion (6). The cell body (3) is engaged with the card seat (4). The left and right sides of the cell compartment (2) are fixed with card blocks (7). The upper surface of the cell compartment (2) is provided with a baffle (8). The two ends of the baffle (8) are engaged with the cell compartment (2) through the card blocks (7).

2. The power bank circuit board for easily fixing lithium battery cells according to claim 1, characterized in that: Multiple heat-conducting copper plates (9) are installed on the bottom surface of the battery cell compartment (2). Silicon grease is applied between the heat-conducting copper plates (9) and the battery cell compartment (2). Heat dissipation fins (10) are fixed on the bottom surface of the heat-conducting copper plates (9). Ventilation ports are opened on the side of the heat dissipation fins (10).

3. The power bank circuit board for easily fixing lithium battery cells according to claim 2, characterized in that: The bottom surface of the plate (1) is fixed with two bases (11), the size of which is larger than the size of the heat dissipation fins (10).

4. The power bank circuit board for easily fixing lithium battery cells according to claim 3, characterized in that: A micro air pump (12) is installed on the bottom surface of the plate (1), and multiple exhaust ports (13) are installed on the upper surface of the base (11) on the left side. The output end of the exhaust port (13) is aligned with the heat dissipation fins (10), and the output end of the micro air pump (12) is connected to the exhaust port (13) through a pipe.

5. A power bank circuit board for easily fixing lithium battery cells according to claim 4, characterized in that: The height of the micro air pump (12) is less than the height of the base (11), and the micro air pump (12) is electrically connected to the control chip installed on the upper surface of the plate (1).

6. The power bank circuit board for easily fixing lithium battery cells according to claim 1, characterized in that: Two connectors (14) are mounted on the upper surface of the board (1), and a USB interface (15) and a Type-C interface (16) are mounted on the side of the connectors (14).

7. A power bank circuit board for easily fixing lithium battery cells according to claim 1, characterized in that: Various chips and capacitors are installed on the upper surface of the plate (1), and the height of the chips and capacitors is lower than the height of the battery cell compartment (2).

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