Voltage-adjustable battery

Abstract

The utility model discloses a voltage-adjustable battery which comprises a battery body and a charging and discharging assembly, and the battery body is provided with a positive electrode end and a negative electrode end; the charging and discharging assembly comprises a mounting shell, a PCB and a positive plate, the mounting shell is connected to the positive electrode end of the battery body, a mounting cavity is formed by the mounting shell and the end part of the battery body, the PCB is arranged in the mounting cavity and is connected to the positive electrode end in an attached manner, a voltage regulating circuit is integrated on the PCB, and the positive plate is attached to the outer surface of the mounting shell and is electrically connected with the PCB. According to the technical scheme, the output voltage can be flexibly adjusted according to application scenes, meanwhile, the structural layout design is compact, and the whole battery is attractive, simple and not bloated.

Description

Technical Field

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

[0002] Currently, a type of USB lithium battery with rechargeable function has emerged on the market to replace existing traditional dry cell batteries. This not only reduces environmental pollution but also lowers usage costs and improves product efficiency and user experience. However, the nominal output voltage of lithium batteries is 3.7V, while the output voltage of traditional dry cell batteries is usually 1.5V. Therefore, lithium batteries cannot completely replace the application scenarios of traditional dry cell batteries. As a result, some lithium batteries are equipped with boost and buck circuits for voltage regulation. However, these batteries usually have a manual adjustment switch, requiring users to manually switch the output voltage. Furthermore, the structural design of these batteries is relatively complex and bulky, and further improvements are needed. Utility Model Content

[0003] The main purpose of this utility model is to provide a voltage-adjustable battery that can flexibly adjust the output voltage according to the application scenario, while having a compact structural layout and an overall beautiful, simple, and non-bulky battery design.

[0004] To achieve the above objectives, this utility model proposes a voltage-adjustable battery, comprising:

[0005] The battery itself has a positive terminal and a negative terminal;

[0006] A charging and discharging assembly includes a mounting shell, a PCB board, and a positive electrode plate. The mounting shell is connected to the positive terminal of the battery body and forms a mounting cavity with the end of the battery body. The PCB board is disposed in the mounting cavity and is attached to the positive terminal. The PCB board integrates a voltage regulation circuit. The positive electrode plate is attached to the outer surface of the mounting shell and is electrically connected to the PCB board.

[0007] In one embodiment of this utility model, a USB charging port is also connected to the PCB board, and a first through hole is opened on the surface of the mounting shell corresponding to the USB charging port.

[0008] In one embodiment of the present invention, the surface of the mounting shell is further provided with a fixing groove corresponding to the positive electrode sheet, and the positive electrode sheet is disposed in the fixing groove.

[0009] In one embodiment of this utility model, a second through hole is provided in the fixing groove, and a connecting strip is formed on the edge of the positive electrode sheet. The connecting strip passes through the second through hole and is electrically connected to the PCB board.

[0010] In one embodiment of this utility model, the mounting shell is formed with a connecting post extending toward the negative end, and the edge of the PCB board has a card interface corresponding to the connecting post.

[0011] In one embodiment of this utility model, the closest distance between the edge of the first through hole and the edge of the fixing groove is greater than 0.3 mm.

[0012] This utility model's technical solution achieves voltage adjustability by setting a charging and discharging component on the battery body. Using a voltage regulation circuit, the battery's output voltage can be adjusted according to the application scenario, thereby achieving flexible voltage control. At the same time, the structure is compact. Through the combination of the mounting shell, PCB board, and positive electrode plate, the design of the charging and discharging component is more compact and modular. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the charging and discharging component structure of this utility model;

[0016] Figure 3 This is an exploded view of the present invention.

[0017] Explanation of icon numbers:

[0018] 1. Battery body; 11. Positive terminal; 12. Negative terminal; 2. Mounting shell; 21. Mounting cavity; 22. First through hole; 23. Fixing groove; 231. Second through hole; 24. Connecting post; 3. PCB board; 31. USB charging port; 32. Card interface; 4. Positive electrode plate; 41. Connecting strip.

[0019] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0021] Reference Figures 1 to 3 This utility model proposes a voltage-adjustable battery, including a battery body 1 and a charging / discharging assembly. The battery body 1 has a positive terminal 11 and a negative terminal 12. The charging / discharging assembly includes a mounting shell 2, a PCB board 3 and a positive electrode 4. The mounting shell 2 is connected to the positive terminal 11 of the battery body 1 and forms a mounting cavity 21 with the end of the battery body 1. The PCB board 3 is disposed in the mounting cavity 21 and is attached to the positive terminal 11. The PCB board 3 integrates a voltage regulation circuit. The positive electrode 4 is attached to the outer surface of the mounting shell 2 and is electrically connected to the PCB board 3.

[0022] Understandably, the battery body 1 is the main part of the entire battery, responsible for storing electrical energy, and has a positive output terminal and a negative output terminal. The charging and discharging assembly is the part of the battery used to manage the charging and discharging process, and consists of multiple components. The mounting shell 2 is a structure used to install and protect other components, fixing them to the positive terminal 11 of the battery body 1. A mounting cavity 21 is formed between the mounting shell 2 and the end of the battery body 1. This cavity is used to place and support the PCB board 3. The PCB board 3 integrates the battery voltage regulation circuit, which regulates the battery's output voltage. The PCB board 3 is placed in the mounting cavity 21 and is attached to the positive terminal 11 of the battery to monitor and regulate the battery's output voltage, ensuring that the battery provides appropriate voltage output under different usage scenarios. The positive electrode 4 is connected to the positive terminal 11 of the battery and is responsible for outputting the battery's electrical energy to the external circuit. The positive electrode 4 is attached to the outer surface of the mounting shell 2 and is connected to the PCB board 3 via an electrical connection.

[0023] The voltage regulation circuit on PCB 3 detects the battery's output voltage during discharge and regulates it as follows: When the battery's output voltage is greater than the discharge cutoff voltage and equal to or lower than a preset low power supply voltage, the battery output voltage is reduced to a second output voltage, which is 1.5V in this example. When the battery's input voltage after charging is greater than the low power supply voltage plus a preset backflush voltage, its output is restored to the first voltage, which is 3.7V in this example. Furthermore, during discharge, the voltage regulation circuit detects the battery's output voltage. When the battery's output voltage drops to equal to or lower than the discharge cutoff voltage, the regulated output is cut off. When the battery's output voltage after charging is greater than the preset low power supply voltage, the regulated output is restored according to the above regulation process.

[0024] Reference Figures 1 to 3 In one embodiment of this application, a USB charging port 31 is also connected to the PCB board 3, and a first through hole 22 is opened on the surface of the mounting shell 2 corresponding to the USB charging port 31.

[0025] Understandably, in addition to the voltage regulation circuit, PCB board 3 also connects to a USB charging port 31. This is to facilitate external devices charging the battery via a USB interface, increasing the battery's convenience and versatility, as USB charging has become a widely used standard interface. To allow the USB charging port 31 to easily provide a charging interface, a hole is pre-drilled on the surface of the mounting shell 2. This hole is aligned precisely with the USB charging port 31 on PCB board 3, allowing external devices (such as USB charging cables) to be inserted and connected to the USB charging port 31 on PCB board 3. Through this hole, users can charge the battery using an external USB charging cable.

[0026] Reference Figures 1 to 3 In one embodiment of this application, the surface of the mounting shell 2 is also provided with a fixing groove 23 corresponding to the positive electrode 4, and the positive electrode 4 is disposed in the fixing groove 23.

[0027] Understandably, the mounting shell 2 is a protective and support casing for the charging and discharging components, made of rigid material to ensure the stability of the internal components. The fixing groove 23 is a specially designed recess (slot) on the surface of the mounting shell 2. This groove is positioned precisely to align with the positive electrode plate 4, aiming to securely fix the positive electrode plate 4 within the shell and ensure it does not move or fall off during use. Since the positive electrode plate 4 is a crucial component of the battery, responsible for contact with external devices during battery discharge, this design precisely locks its position within the groove of the mounting shell 2, preventing loosening or displacement. This ensures the stability and safety of the positive electrode plate 4, preventing it from shifting due to vibration or other external forces during battery operation, thereby ensuring the normal operation and safety of the battery.

[0028] Reference Figures 1 to 3 In one embodiment of this application, a second through hole 231 is provided in the fixing groove 23, and a connecting strip 41 is formed on the edge of the positive electrode plate 4. The connecting strip 41 passes through the second through hole 231 and is electrically connected to the PCB board 3.

[0029] Understandably, a small hole is made inside the fixing groove 23 of the mounting shell 2 to allow the connecting strip 41 of the positive electrode 4 to pass through the groove, ensuring that the connecting strip 41 can establish an electrical connection with the PCB board 3, so that the internal circuit of the battery can establish a current path through physical connection. The connecting strip 41 is a conductive part extending from the edge of the positive electrode 4, ensuring that current can be transmitted from the PCB board 3 to the positive electrode 4, and then connected to other circuits. The connecting strip 41 is a metallic conductor, such as copper or aluminum, with good conductivity.

[0030] After the connecting strip 41 passes through the second through hole 231, it contacts the electrode or conductive track (pad or pin, etc.) on the PCB board 3, thereby enabling the flow of current. In this way, the positive electrode 4 establishes an electrical connection with the battery's voltage regulation circuit, realizing variable voltage output.

[0031] Reference Figures 1 to 3 In one embodiment of this application, the mounting shell 2 is formed with a connecting post 24 extending toward the negative end 12, and the edge of the PCB board 3 is provided with a card interface 32 corresponding to the connecting post 24.

[0032] Understandably, the PCB board 3 is fixed in the mounting cavity 21 by the connecting post 24 of the mounting housing 2 via the card interface 32, which effectively enhances the mechanical stability of the entire assembly. The PCB board 3 needs to be securely installed in the housing to avoid loosening or displacement during use. The card interface 32 and the connecting post 24 provide good fixation, reducing the displacement of the PCB board 3 caused by vibration or external force, thereby ensuring the normal operation of the circuit.

[0033] Reference Figures 1 to 3 In one embodiment of this application, the closest distance between the edge of the first through hole 22 and the edge of the fixing groove 23 is greater than 0.3 mm.

[0034] Understandably, the first through hole 22 is a hole on the mounting housing 2 for connecting to the USB charging port 31, and the fixing groove 23 is a groove for fixing the positive electrode plate 4. In this example, the minimum distance between the edge of the first through hole 22 and the edge of the fixing groove 23 shall not be less than 0.3mm. On the one hand, this is to ensure electrical insulation, avoid short circuits, and ensure sufficient mechanical clearance so that unnecessary interference or contact does not occur between the components during assembly. On the other hand, leaving a distance of 0.3mm also helps to improve manufacturing tolerance, that is, to ensure that errors in position and size during production will not cause physical contact or damage to the components.

[0035] This utility model's technical solution achieves voltage adjustability by setting a charging and discharging component on the battery body 1. Using a voltage regulation circuit, the battery's output voltage can be adjusted according to the application scenario, thereby achieving flexible voltage control. At the same time, the structure is compact. The combination of the mounting shell 2, PCB board 3, and positive electrode plate 4 makes the design of the charging and discharging component more compact and modular.

[0036] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this application, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, they are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the accompanying drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0037] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A voltage-adjustable battery, characterized in that, include: The battery body (1) has a positive terminal (11) and a negative terminal (12). The charging and discharging assembly includes a mounting shell (2), a PCB board (3), and a positive electrode plate (4). The mounting shell (2) is connected to the positive terminal (11) of the battery body (1) and forms a mounting cavity (21) with the end of the battery body (1). The PCB board (3) is disposed in the mounting cavity (21) and is attached to the positive terminal (11). The PCB board (3) integrates a voltage regulation circuit. The positive electrode plate (4) is attached to the outer surface of the mounting shell (2) and is electrically connected to the PCB board (3).

2. The voltage-adjustable battery according to claim 1, characterized in that, The PCB board (3) is also connected to a USB charging port (31), and the surface of the mounting shell (2) is provided with a first through hole (22) corresponding to the USB charging port (31).

3. The voltage-adjustable battery according to claim 2, characterized in that, The mounting shell (2) also has a fixing groove (23) on its surface corresponding to the positive electrode (4), and the positive electrode (4) is disposed in the fixing groove (23).

4. The voltage-adjustable battery according to claim 3, characterized in that, A second through hole (231) is provided in the fixing groove (23), and a connecting strip (41) is formed on the edge of the positive electrode (4). The connecting strip (41) passes through the second through hole (231) and is electrically connected to the PCB board (3).

5. A voltage-adjustable battery according to claim 4, characterized in that, The mounting housing (2) has a connecting post (24) extending toward the negative end (12), and the edge of the PCB board (3) has a card interface (32) corresponding to the connecting post (24).

6. A voltage-adjustable battery according to claim 5, characterized in that, The closest distance between the edge of the first through hole (22) and the edge of the fixing groove (23) is greater than 0.3 mm.

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