Lithium battery power supply protection board with charging protection function

Abstract

The utility model relates to the technical field of power supply protection plates, and discloses a lithium battery power supply protection plate with a charging protection function, which comprises a battery box, a lithium battery body is fixedly arranged in the middle of the inner bottom surface of the battery box through bolts, and a power supply protection plate body is fixedly arranged at the upper end of the lithium battery body. Stabilizing mechanisms are fixedly arranged on the two sides of the battery box and the middle positions of the upper sides of the front end and the rear end of the battery box through bolts, a voltage measuring mechanism is fixedly arranged at the rear end of one side of the battery box, the multiple stabilizing mechanisms comprise mounting plates, and two spring dampers are fixedly arranged on the inner bottom surfaces of the multiple mounting plates; a pressing plate is fixedly arranged at the upper ends of the multiple spring dampers. According to the utility model, the stabilizing mechanism adopts the design that the spring damper is matched with the pressing plate, so that the power supply protection plate body can be limited, the stability of the power supply protection plate body can be improved during the operation of the device, the damage caused by factors such as vibration is reduced, and the maintenance frequency is reduced.

Description

Technical Field

[0001] This utility model relates to the field of power protection board technology, and in particular to a lithium battery power protection board with charging protection function. Background Technology

[0002] The power protection board is mainly used to monitor and control the charging and discharging process of lithium batteries to ensure battery safety and extend battery life. It has multiple functions such as overcharge protection, over-discharge protection, overcurrent protection, short circuit protection and temperature protection.

[0003] Most existing power protection boards are installed with lithium batteries by welding. The solder points of the protection board are welded to the corresponding electrodes of the lithium battery. After installation, the entire device is installed in the required position. In the entire installation process of the power protection board, apart from welding and fixing it, no other stabilizing devices are set up to enhance the installation stability of the power protection board, resulting in insufficient stability.

[0004] Therefore, those skilled in the art have provided a lithium battery power protection board with charging protection function to solve the problems mentioned in the background art. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a lithium battery power protection board with charging protection function. The power protection board itself monitors and controls the charging and discharging of the lithium battery in real time, preventing irreversible damage to the battery caused by overcharging and over-discharging, and extending the battery's lifespan. The cooling fan and heat sink work together to dissipate the heat generated by the battery in a timely manner, avoiding the impact of high temperature on battery performance and safety. The voltage measurement mechanism can monitor the battery voltage in real time. When the over-discharge protection function fails, the alarm light will illuminate in time to remind the staff to handle the situation, ensuring the safe and stable operation of the lithium battery.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a lithium battery power protection board with charging protection function, including a battery box, a lithium battery body is fixedly installed in the middle of the bottom surface of the battery box by bolts, a power protection board body is fixedly installed on the upper end of the lithium battery body, stabilizing mechanisms are fixedly installed on the upper middle of the two sides and the front and rear ends of the battery box by bolts, and a voltage measuring mechanism is fixedly installed at the rear end of one side of the battery box.

[0007] The plurality of stabilizing mechanisms include mounting plates, two spring dampers are fixedly installed on the bottom surface of the plurality of mounting plates, and pressure plates are fixedly installed on the upper ends of the plurality of spring dampers. The voltage measuring mechanism includes a voltage measuring box, and a storage box is fixedly installed on the rear side of the lower end of the voltage measuring box.

[0008] Furthermore, an alarm light is fixedly installed at the lower front of the voltage measuring box, and voltage connection wires are fixedly installed on both sides of the upper end of the voltage measuring box.

[0009] Furthermore, a mounting groove is provided in the middle of one side of the battery box, and a cooling fan is fixed in the middle of the mounting groove by bolts.

[0010] Furthermore, a heat dissipation groove is provided at the middle of the front and rear ends of the battery box, and a dustproof net is fixed to the front and rear ends of the battery box by bolts.

[0011] Furthermore, mounting legs are fixedly provided on both the front and rear ends of the battery box, and threaded rods are provided in the middle of the multiple mounting legs through threads.

[0012] Furthermore, a mounting cover is fixed to the lower end of the battery box by bolts, and welding pins are fixed to the upper middle part of the power protection board body near both sides.

[0013] Furthermore, mounting blocks are fixedly installed on the upper parts of the front and rear ends of the battery box, and support legs are fixedly installed on the upper ends of the multiple mounting blocks.

[0014] This utility model has the following beneficial effects:

[0015] 1. This utility model proposes a lithium battery power protection board with charging protection function. This lithium battery power protection board protects battery safety from multiple aspects. The power protection board body monitors and controls the charging and discharging of the lithium battery in real time to prevent overcharging and over-discharging from causing irreversible damage to the battery and extend the battery life. The heat dissipation fan and heat dissipation slot work together to dissipate the heat generated by the battery in time, avoiding high temperature from affecting battery performance and safety. The voltage measurement mechanism can monitor the battery voltage in real time. When the over-discharge protection function fails, the alarm light will light up in time to remind the staff to deal with it and ensure the safe and stable operation of the lithium battery.

[0016] 2. The present invention proposes a lithium battery power protection board with charging protection function. The mounting cover is fixed to the lower end of the battery box with bolts, which makes it easy to directly remove the battery box from the lower end and easily maintain or replace the internal lithium battery components. The stabilizing mechanism adopts a design of spring damper and pressure plate, which can limit the main body of the power protection board and improve its stability during device operation, reduce damage caused by vibration and other factors, and reduce maintenance frequency. Attached Figure Description

[0017] Figure 1 This is an isometric schematic diagram of the present invention;

[0018] Figure 2 This is a frontal axonometric schematic diagram of the present invention;

[0019] Figure 3 This is a side-view axonometric schematic diagram of the present invention;

[0020] Figure 4 This is a bottom-view axonometric schematic diagram of the present invention;

[0021] Figure 5 This is a front sectional view of the mounting plate of this utility model.

[0022] Legend:

[0023] 1. Battery box; 2. Power protection board body; 3. Stabilizing mechanism; 4. Mounting block; 5. Support leg; 6. Heat dissipation slot; 7. Mounting leg; 8. Threaded rod; 9. Voltage measuring mechanism; 10. Dustproof net; 11. Mounting slot; 12. Cooling fan; 13. Soldering pin; 14. Lithium battery body; 15. Mounting cover; 301. Mounting plate; 302. Spring damper; 303. Pressure plate; 901. Voltage measuring box; 902. Storage box; 903. Alarm light; 904. Voltage connection wire. Detailed Implementation

[0024] 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.

[0025] Reference Figure 1-4 The present invention provides an embodiment of a lithium battery power protection board with charging protection function, comprising a battery box 1, a lithium battery body 14 fixedly mounted on the middle of the bottom surface of the battery box 1 by bolts, a power protection board body 2 fixedly mounted on the upper end of the lithium battery body 14, a mounting groove 11 opened on the middle of one side of the battery box 1, a heat dissipation fan 12 fixedly mounted on the middle of the mounting groove 11 by bolts, a heat dissipation groove 6 opened on the middle of the front and rear ends of the battery box 1, a dustproof net 10 fixedly mounted on the front and rear ends of the battery box 1 by bolts, mounting legs 7 fixedly mounted on both sides of the front and rear ends of the battery box 1, a threaded rod 8 fixedly mounted on the middle of the middle of the front and rear ends of the battery box 1, a mounting cover 15 fixedly mounted on the lower end of the battery box 1 by bolts, welding pins 13 fixedly mounted on both sides of the middle of the upper end of the power protection board body 2, mounting blocks 4 fixedly mounted on the upper part of both sides of the front and rear ends of the battery box 1, and support legs 5 fixedly mounted on the upper end of the multiple mounting blocks 4;

[0026] Specifically, the battery box 1 facilitates the fixed installation of the lithium battery body 14; the power protection board body 2 is used to monitor and control the charging and discharging process of the lithium battery to ensure battery safety and extend battery life; the mounting slot 11 facilitates the installation of the cooling fan 12; the cooling fan 12 is conducive to the use of the cooling slot 6 to improve heat dissipation; the dustproof net 10 helps reduce the entry of dust; the mounting leg 7 is conducive to the use of the threaded rod 8 to fix the device; the mounting cover 15 facilitates the removal of the battery box 1 from the bottom; the welding pin 13 facilitates the welding installation of the power protection board body 2 and the lithium battery body 14; the mounting block 4 facilitates the fixed installation of the support leg 5, facilitates the reverse support of the battery box 1, and facilitates the removal of the internal lithium battery.

[0027] Reference Figure 2 , Figure 3 and Figure 5 A stabilizing mechanism 3 is fixedly installed on both sides and the upper middle of the front and rear ends of the battery box 1 by bolts. Multiple stabilizing mechanisms 3 include mounting plates 301. Two spring dampers 302 are fixedly installed on the inner bottom surface of multiple mounting plates 301. A pressure plate 303 is fixedly installed on the upper end of multiple spring dampers 302. A voltage measuring mechanism 9 is fixedly installed on the rear side of one side of the battery box 1. The voltage measuring mechanism 9 includes a voltage measuring box 901. A storage box 902 is fixedly installed on the lower rear side of the voltage measuring box 901. An alarm light 903 is fixedly installed on the lower front side of the voltage measuring box 901. Voltage connecting wires 904 are fixedly installed on both sides of the upper end of the voltage measuring box 901.

[0028] Specifically, the mounting plate 301 helps stabilize the mechanism 3, which is fixedly mounted on the battery box 1 with bolts. The spring damper 302 is used in conjunction with the pressure plate 303, which facilitates limiting the power protection board body 2 and improving the stability of the power protection board body 2 during use. The voltage measuring box 901 is used to measure whether the voltage of the power protection board body 2 is normal. For example, when the battery discharges to the over-discharge protection voltage, such as 2.5V / division, the power protection board body 2 should cut off the discharge circuit. The voltage measuring box 901 is used to measure the battery voltage. If it is lower than the over-discharge protection voltage and the protection board has not stopped discharging, the over-discharge protection function may be ineffective. At this time, the alarm light 903 will light up to help the staff quickly find out. The voltage measuring box 901 is powered by a separate storage box 902 and is connected to the lithium battery body 14 through the voltage connection line 904.

[0029] Working principle: The lithium battery body 14 provides power to the entire device. The power protection board body 2 monitors and controls the charging and discharging process of the lithium battery to ensure battery safety and extend its service life. For example, during charging, it prevents overcharging from damaging the battery and during discharging, it prevents over-discharging from affecting battery performance. The cooling fan 12 is installed in the mounting slot 11 and generates airflow during operation. Together with the cooling slot 6, it dissipates the heat generated by the lithium battery body 14 and the power protection board body 2 inside the battery box 1, improves heat dissipation performance, and ensures that the device operates at a suitable temperature. The dustproof net 10 is installed at the front and rear ends of the battery box 1, which can effectively reduce dust from entering the battery box 1.

[0030] Secondly, the mounting cover 15 is fixed to the lower end of the battery box 1 with bolts, facilitating the removal of the battery box from the bottom and enabling maintenance and replacement of the internal lithium battery body 14 assembly. The welding pins 13 are located at the upper end of the power protection board body 2, used to weld the power protection board body 2 to the lithium battery body 14, achieving electrical connection between the two and enabling the power protection board to effectively monitor and control the lithium battery. The mounting plate 301 fixes the stabilizing mechanism 3 to the battery box 1. The spring damper 302, in conjunction with the pressure plate 303, both stabilizes the power protection board body 2... The limit switch prevents the battery from shaking and shifting, and also improves the stability of the power protection board 2 during operation. The voltage measuring box 901 is connected to the lithium battery body 14 through the voltage connection line 904 to measure whether the power protection board 2 is normal. When the battery discharges to the over-discharge protection voltage, such as 2.5V / division, if the power protection board 2 does not cut off the discharge circuit and the measured battery voltage is lower than the over-discharge protection voltage, the alarm light 903 will light up to remind the staff that the over-discharge protection function may fail. The voltage measuring box 901 is powered by a separate battery storage box 902.

[0031] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A lithium battery power supply protection board with charge protection function, comprising a battery box (1), characterized in that: A lithium battery body (14) is fixedly installed in the middle of the bottom surface of the battery box (1) by bolts. A power protection board body (2) is fixedly installed on the upper end of the lithium battery body (14). A stabilizing mechanism (3) is fixedly installed on the upper middle of the front and rear ends of the battery box (1) by bolts. A voltage measuring mechanism (9) is fixedly installed on the rear end of one side of the battery box (1). The plurality of stabilizing mechanisms (3) include mounting plates (301), and two spring dampers (302) are fixedly installed on the bottom surface of the plurality of mounting plates (301). A pressure plate (303) is fixedly installed on the upper end of the plurality of spring dampers (302). The voltage measuring mechanism (9) includes a voltage measuring box (901), and a storage box (902) is fixedly installed on the rear side of the lower end of the voltage measuring box (901).

2. A lithium battery power protection board with charging protection function according to claim 1, characterized in that: An alarm light (903) is fixedly installed at the lower front side of the voltage measuring box (901), and voltage connecting wires (904) are fixedly installed at the upper two sides of the voltage measuring box (901).

3. The lithium battery power protection board with charge protection function according to claim 1, characterized in that: A mounting groove (11) is provided in the middle of one side of the battery box (1), and a cooling fan (12) is fixed in the middle of the mounting groove (11) by bolts.

4. The lithium battery power protection board with charge protection function according to claim 1, characterized in that: The battery box (1) has a heat dissipation groove (6) at the middle of the front and rear ends, and the front and rear ends of the battery box (1) are fixed with dustproof nets (10) by bolts.

5. The lithium battery power protection board with charge protection function according to claim 1, characterized in that: The battery box (1) has mounting legs (7) fixedly installed on both the front and rear ends, and a threaded rod (8) is provided in the middle of the multiple mounting legs (7) by means of threads.

6. The lithium battery power protection board with charge protection function according to claim 1, characterized in that: The lower end of the battery box (1) is fixed with a mounting cover (15) by bolts, and the upper middle part of the power protection board body (2) is fixed with welding pins (13) on both sides.

7. The lithium battery power protection board with charge protection function according to claim 1, characterized in that: Mounting blocks (4) are fixedly installed on the upper part of the front and rear ends of the battery box (1), and support legs (5) are fixedly installed on the upper end of the multiple mounting blocks (4).

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