Battery pack convenient to operate and handheld tool

Abstract

The battery pack comprises a shell, a battery cell and a circuit board, the battery cell is electrically connected with the circuit board, the battery cell and the circuit board are arranged in the shell, the circuit board is electrically connected with a charging and discharging interface, a discharging terminal and an electric quantity displayer, the electric quantity displayer is used for displaying the electric quantity of the battery cell, and the charging and discharging interface is electrically connected with the charging and discharging terminal. The position, corresponding to the electric quantity display, of the shell is made of a transparent material, and the shell is provided with an opening for exposing the charging and discharging interface and the discharging terminal. According to the battery pack convenient to operate and the handheld tool, rapid battery replacement is facilitated.

Description

Technical Field

[0001] This application relates to the field of battery packs and their application technology, and more specifically, to a convenient battery pack and handheld tool. Background Technology

[0002] Battery packs are an indispensable component of modern electronic devices, widely used in various portable electronic products, power tools, and electric vehicles. With technological advancements and growing market demand, battery pack designs are constantly being optimized to improve energy density, extend lifespan, and ensure safety and convenience. Currently, common battery packs on the market typically consist of a casing, battery cells, and a circuit board, enabling basic energy storage and release functions. However, with the diversification of application scenarios and increasing technological demands, traditional battery pack designs are no longer sufficient to meet the diverse needs of users.

[0003] While existing battery pack designs improve the user experience to some extent, they still have some drawbacks. For example, current battery packs typically require removing the casing to check the battery level, which not only increases operational complexity but may also affect the pack's sealing and safety. Therefore, there is an urgent need for a battery pack that allows for convenient checking of the battery level without removing the casing and facilitates easy charging and discharging. Utility Model Content

[0004] In view of this, this application provides a convenient battery pack and handheld tool for easy viewing of battery level and charging / discharging.

[0005] In a first aspect, this application provides a convenient battery pack, including a housing, a battery cell, and a circuit board. The battery cell is electrically connected to the circuit board, and the battery cell and the circuit board are disposed inside the housing. The circuit board is electrically connected to a charging / discharging interface, a discharging terminal, and a power display. The power display is used to display the battery cell's power level. The housing is made of transparent material at the position corresponding to the power display. The housing has an opening for exposing the charging / discharging interface and the discharging terminal.

[0006] By adopting the technical solution of this application, the battery cell, as the energy storage unit of the battery pack, is connected to the circuit board via an electrical connection. The circuit board, as the control and management center of the battery pack, is responsible for the charging and discharging control of the battery cell, power monitoring, and communication with other devices. The power monitoring module on the circuit board monitors the power status of the battery cell in real time and transmits the power information to the power display. Based on the received power information, the power display uses internal display elements (such as LEDs, LCD screens, etc.) to intuitively show the remaining power of the battery cell. The intuitive display reduces unexpected shutdowns or equipment damage caused by insufficient power, thereby reducing maintenance costs due to battery problems. It eliminates the need for additional power testing tools or equipment, improving ease of use.

[0007] The housing, corresponding to the power indicator, is made of transparent material, allowing users to directly observe the displayed information. This design maintains the overall aesthetics of the battery pack while providing a clear display of the power level. Openings on the housing expose the charging / discharging interfaces and discharge terminals. These interfaces and terminals connect to external devices, enabling the battery pack to charge, discharge, and connect to devices. The openings are designed for ease of connection and safety, ensuring quick and convenient connection during normal use while minimizing the risk of accidental operation.

[0008] In some implementations, the power indicator is electrically connected to the circuit board in a normally open state, a switch for controlling the power supply of the power indicator is provided on the circuit board, and a resilient button corresponding to the switch is provided on the housing.

[0009] By adopting the above technical solution, the power indicator is electrically connected to the circuit board in a normally open state, and its power supply is controlled by a switch on the circuit board, effectively avoiding unnecessary power consumption. When the battery pack is not in use, the power indicator's power consumption can be reduced by turning off the switch, thereby improving the overall energy efficiency of the battery pack. A spring-loaded button on the casing, corresponding to the switch, allows users to easily control the power indicator's on / off state by pressing the button. This design not only improves operational convenience but also increases the interactivity between the user and the battery pack. Users can turn the power indicator on or off at any time according to their needs. For example, when they need to check the power level, they can press the spring-loaded button to turn on the power indicator; when they do not need to check the power level, they can turn off the switch to reduce power consumption and extend the battery pack's lifespan. These implementation schemes further enhance the battery pack's energy efficiency, user experience, safety, and flexibility.

[0010] In some implementations, the power indicator includes a dual-color LED indicator. In the charging state, the LED indicator displays the charging status using a first color and the fully charged status using a second color; in the discharging state, the LED indicator displays the low-power status using a first color.

[0011] By adopting the above technical solution, the dual-color LED indicator uses different colors to display the battery pack's charging status, full charge status, and low charge status, allowing users to clearly understand the battery pack's power level at a glance. This design not only improves the intuitiveness of the information but also reduces the difficulty for users to view or understand complex power display interfaces. Compared to other types of power displays (such as LCD screens), the dual-color LED indicator consumes less power. When displaying the power status, the LED indicator only consumes a small amount of energy, thus helping to extend the battery pack's lifespan. In addition, LED indicators are typically bright, clearly displaying the power status even in low-light environments.

[0012] In some implementations, the battery cell is electrically connected to the circuit board via a positive terminal connector and a negative terminal connector, and the positive terminal connector is electrically connected to the discharge terminal.

[0013] By adopting the above technical solution and directly connecting the positive electrode connector and the discharge terminal, the internal circuit structure of the battery pack can be simplified. This design reduces the number of connection points and components in the circuit, lowering circuit complexity and failure rate. The simple circuit structure and clear connection relationships make battery pack maintenance more convenient. When repair or replacement of cells is required, the connection points can be more easily located and disconnected, reducing maintenance difficulty and cost. The implementation scheme in which the cells are electrically connected to the circuit board through the positive and negative electrode connectors, and the positive electrode connector is directly electrically connected to the discharge terminal, can further enhance the connection reliability of the battery pack, simplify the circuit structure, improve safety, and facilitate maintenance, thus contributing to improved battery pack performance and user experience.

[0014] In some embodiments, a first insulating sheet is provided between the positive electrode of the battery cell and the housing, and an insulating component is provided between the negative electrode of the battery cell and the circuit board.

[0015] By adopting the above technical solutions, the insulating sheets and insulating components effectively isolate the positive and negative terminals of the battery cell from direct contact with the casing and circuit board, thereby avoiding safety issues caused by short circuits and leakage. This design improves the safety of the battery pack during use and reduces potential safety hazards. The use of insulating materials can reduce the impact of heat generated by the battery cell during operation on components such as the casing and circuit board, thereby improving the stability and reliability of the battery pack.

[0016] In some embodiments, the insulating component includes a second insulating layer and an adhesive backing layer, wherein the second insulating layer is fixed to the circuit board integrally by the adhesive backing layer.

[0017] By adopting the above technical solution, the insulating layer, as the main insulating material, possesses excellent electrical insulation properties, ensuring electrical isolation between the negative electrode of the battery cell and the circuit board, preventing current leakage and short circuits. The adhesive layer not only acts as an adhesive but also enhances the bonding force between the insulating layer and the circuit board, forming a stable whole. This helps improve the structural stability of the battery pack under harsh environments such as vibration and impact.

[0018] In some implementations, the negative electrode of the battery cell is electrically connected to the circuit board via a negative electrode plate, the insulating component is located between the negative electrode plate and the circuit board, and the negative electrode plate passes through the circuit board and is electrically connected to the side of the circuit board opposite to the battery cell.

[0019] By adopting the above technical solution, the negative electrode is electrically connected to the connection point on the back of the circuit board. This design increases the stability of the connection and reduces connection failures caused by poor contact or loosening. Connecting the negative electrode through the circuit board allows for more flexible spatial arrangement between the battery cell and the circuit board, improving overall space utilization. The insulating component located between the negative electrode and the circuit board provides excellent electrical isolation. This not only prevents direct contact between the battery cell's negative electrode and other components on the circuit board but also prevents safety issues caused by current leakage or short circuits.

[0020] In some embodiments, the housing is provided with heat dissipation holes, which are located on the end face away from the circuit board or on the side of the housing.

[0021] By adopting the above technical solution and placing the heat dissipation holes on the end face and side away from the circuit board, it can be ensured that the heat generated by the battery cell can be directly dissipated through the heat dissipation holes without being obstructed by the circuit board or other components. This design helps to reduce the thermal coupling effect between the battery cell and the circuit board, reduce the transfer of heat between the battery cell and the circuit board, and thus improve the heat dissipation efficiency of the battery pack.

[0022] In some embodiments, multiple heat dissipation holes are provided and arranged along the length of the housing, with the multiple heat dissipation holes symmetrically arranged on the side of the housing.

[0023] By adopting the above technical solutions, excessive heat accumulation on one side is avoided, which helps to form thermal convection to dissipate the heat generated by the cell from the casing more quickly, reduce the cell temperature, and improve the safety and reliability of the battery pack.

[0024] Secondly, this application provides a handheld tool including the conveniently operated battery pack of the first aspect.

[0025] By adopting the above technical solution, the user-friendly battery pack allows users to easily replace batteries, improving overall work efficiency. The handheld tool provided in this application, by integrating a user-friendly battery pack, not only enhances the tool's portability and practicality but also strengthens the user's operating experience and safety. This design will bring users a more efficient, convenient, and safe working experience.

[0026] In summary, this application has at least one of the following beneficial technical effects:

[0027] 1. The battery pack of this application is easy to operate and can display the battery pack's power level, reducing maintenance costs caused by battery problems and improving ease of use.

[0028] 2. The convenient battery pack of this application features exposed charging and discharging interfaces and discharge terminals, facilitating connection to external devices and enabling charging, discharging, and device connectivity. This enhances the convenience and safety of battery pack connection, ensuring quick and easy connection during normal use while reducing the risk of misoperation.

[0029] 3. The handheld tool of this application can easily replace batteries, improving overall work efficiency and enhancing user experience and safety. Attached Figure Description

[0030] Figure 1 This is a three-dimensional structural diagram of the convenient battery pack of this application;

[0031] Figure 2 This is a three-dimensional structural diagram of the battery pack for convenient operation as described in this application from another angle;

[0032] Figure 3 This is an exploded view of the battery pack for convenient operation according to this application;

[0033] Figure 4 This is a schematic diagram of the three-dimensional cross-sectional structure of the battery for convenient operation according to this application;

[0034] Figure 5 This is a schematic diagram of the internal structure of the battery pack for easy operation according to this application.

[0035] 1. Housing; 11. Upper housing; 12. Lower housing; 13. Heat dissipation holes; 14. Mounting bracket; 2. Charging / discharging interface; 20. Circuit board; 3. Discharge terminal; 4. Transparent window; 41. Power indicator; 5. Button; 51. Switch; 6. Positive electrode connection piece; 61. Positive electrode connection terminal; 62. Discharge connection terminal; 63. Negative electrode connection piece; 7. Battery cell; 8. Insulation components; 81. Adhesive backing layer; 82. Second insulation layer; 9. First insulation layer. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the utility model will be further described in detail below with reference to the accompanying drawings. The components of the embodiments of this utility model described and shown in the accompanying drawings can be arranged and designed in various different configurations. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0037] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0038] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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 based on the specific circumstances.

[0039] In the description of this application, it should be understood that the terms "upper", "lower", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and 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, and therefore should not be construed as a limitation of this application.

[0040] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings. Unless otherwise specified, the features in the following embodiments can be combined with each other.

[0041] Example 1

[0042] Please see Figures 1-3 The convenient battery pack provided in this application includes a housing 1, a battery cell 7, and a circuit board 20. The battery cell 7 is electrically connected to the circuit board 20, and the battery cell 7 and the circuit board 20 are disposed inside the housing 1. The circuit board 20 is electrically connected to a charging / discharging interface 2, a discharging terminal 3, and a power display 41. The power display 41 is used to display the power level of the battery cell 7. The housing 1 has a transparent window 4 corresponding to the position of the power display 41. The transparent window 4 is made of transparent material, allowing users to easily check the power level without removing the housing. The housing 1 has openings for exposing the charging / discharging interface 2 and the discharging terminal 3, ensuring the convenience and reliability of connecting external devices to the charging / discharging interface 2 and the discharging terminal 3.

[0043] Specifically, the housing 1 includes an upper cover and a lower cover, which are connected by snaps or screws to form a closed space. The material of the housing 1 can be plastic, metal, or other high-strength composite materials to ensure the durability and safety of the battery pack. The transparent part of the transparent window 4 can be transparent plastic such as acrylic or polycarbonate (PC) to ensure light transmittance and durability.

[0044] Cell 7 uses a high-energy lithium-ion battery, featuring high energy density and long cycle life. The capacity of Cell 7 can be selected according to actual needs, such as 10Ah or 20Ah. Cell 7 can be packaged in cylindrical, prismatic, or pouch forms to adapt to different spatial layouts and usage scenarios.

[0045] The circuit board 20 integrates various functional modules, including a power management chip, protection circuitry, and a temperature sensor. The power management chip controls the charging and discharging process, while the protection circuitry ensures the battery is not damaged by overcharging, over-discharging, or short circuits. The temperature sensor monitors the cell temperature 7 in real time to prevent safety risks caused by overheating.

[0046] The charging / discharging interface 2 uses a standard USB-C or Type-A interface, supporting fast charging and high-current discharging. The exposed portions of the charging / discharging interface 2 and the discharging terminal 3 can be designed to be waterproof and dustproof, for example, with an IP67 rating, to enhance their reliability in harsh environments. The pins of the interface and terminals are gold-plated to reduce contact resistance and improve conductivity.

[0047] The power display 41 uses a dual-color LED indicator. When the battery pack is low in power, the control circuit will light up the red LED indicator to indicate that the battery pack is charging and the power is low. When the battery pack is fully charged, the control circuit will turn off the red LED and light up the green LED indicator to indicate that the battery pack is fully charged.

[0048] In the discharge state, when the battery pack's charge is low, the control circuit will also light up a red LED indicator to indicate that the battery pack needs to be charged; when the battery pack's charge is high (not necessarily fully charged), the red LED will turn off or remain dimly lit, or the green LED indicator will light up (depending on the design) to indicate that the battery pack has sufficient charge for use.

[0049] Please see Figure 3The housing 1 is fixedly connected to a mounting bracket 14, and the circuit board 20 is fixed on the mounting bracket 14. The battery cell 7 is electrically connected to the circuit board 20 through a positive electrode connecting piece 6 and a negative electrode connecting piece 63. The positive electrode connecting piece 6 is electrically connected to the discharge terminal 3. The positive electrode connecting piece 6 and the negative electrode connecting piece 63 are made of copper or aluminum, which have good conductivity and corrosion resistance. The cross-sectional area of ​​the connecting piece is determined according to the maximum current requirement to reduce heat generation and voltage drop. The connection points between the connecting piece and the battery cell 7 and the circuit board 20 are welded or crimped to ensure a firm and reliable connection.

[0050] A first insulating sheet is disposed between the positive electrode of the battery cell 7 and the casing 1, and an insulating assembly 8 is disposed between the negative electrode of the battery cell 7 and the circuit board 20. The first insulating sheet can be an insulating material such as polyethylene (PE), polypropylene (PP), or silicone, with a thickness of approximately 0.5-1 mm, to ensure electrical isolation between the battery cell 7 and the casing 1. The insulating assembly 8 includes a second insulating layer 82 and an adhesive backing layer 81. The second insulating layer 82 is fixed to the circuit board 20 as a whole by the adhesive backing layer 81. The second insulating layer 82 can be an insulating material such as polyimide (PI) film, polyethylene (PE), polypropylene (PP), or silicone, with a thickness of approximately 0.1-1 mm. The adhesive backing layer 81 uses a high-performance adhesive to ensure the stability and durability of the insulating assembly 8.

[0051] The negative electrode of cell 7 is electrically connected to circuit board 20 via a negative electrode sheet. Insulating component 8 is located between the negative electrode sheet and circuit board 20. The negative electrode sheet passes through circuit board 20 and is electrically connected to the side of circuit board 20 opposite to cell 7. The negative electrode sheet is made of copper or aluminum foil with a thickness of approximately 0.1-0.5 mm to ensure good conductivity. The connection point between the negative electrode sheet and circuit board 20 is achieved by welding or crimping to ensure a firm and reliable connection.

[0052] By incorporating a transparent window 4 and a power indicator 41 on the housing 1, the battery level can be easily checked without disassembling the housing. Simultaneously, a well-designed interface and insulation protection measures ensure the reliability of the charging / discharging interface 2 and the discharging terminal 3. Furthermore, the addition of heat dissipation holes 13 effectively improves the battery pack's heat dissipation performance, preventing overheating-related safety hazards and significantly enhancing the user experience and safety of the battery pack.

[0053] Please see Figure 1 and Figure 3 The housing 1 is provided with heat dissipation holes 13, which are located on the end face away from the circuit board 20 or on the side of the housing 1. Multiple heat dissipation holes 13 are provided and arranged along the length of the housing 1, symmetrically arranged on the side of the housing 1. To further improve the heat dissipation effect, this embodiment also provides a heat sink inside the housing 1. The heat sink is in close contact with the battery cell 7 and the circuit board 20, increasing the heat dissipation area and improving the heat dissipation efficiency.

[0054] Specifically, the diameter and spacing of the heat dissipation holes 13 are determined according to the heat dissipation requirements to ensure sufficient airflow. The edges of the heat dissipation holes 13 are chamfered or rounded to prevent sharp edges from scratching hands or cables. The heat sink is made of aluminum alloy or copper alloy, which has good thermal conductivity. The surface of the heat sink can be anodized to improve its corrosion resistance and aesthetics. The heat sink is fixed to the inside of the housing 1 by welding or screws to ensure its stability and reliability.

[0055] By providing heat dissipation holes 13 and heat sinks on the housing 1, the heat dissipation performance of the battery pack is effectively improved, preventing safety hazards caused by overheating. The design of the heat dissipation holes 13 ensures sufficient airflow, and the heat sinks increase the heat dissipation area and improve heat dissipation efficiency. Overall, this embodiment significantly improves the heat dissipation performance while ensuring the battery pack's performance, making it suitable for long-term use in high-temperature environments.

[0056] Please see Figure 4 and Figure 5 The battery cell 7 is electrically connected to the circuit board 20 via a positive electrode connecting piece 6 and a negative electrode connecting piece 63. The positive electrode connecting piece 6 is electrically connected to the discharge terminal 3. To further improve the reliability and safety of the connection, this embodiment provides a first insulating sheet between the positive electrode of the battery cell 7 and the housing 1, and an insulating component 8 between the negative electrode of the battery cell 7 and the circuit board 20. The negative electrode of the battery cell 7 is electrically connected to the circuit board 20 via a negative electrode piece. The insulating component 8 is located between the negative electrode piece and the circuit board 20, and the negative electrode piece passes through the circuit board 20 and is electrically connected to the side of the circuit board 20 opposite to the battery cell 7.

[0057] By placing a first insulating sheet between the positive electrode of the battery cell 7 and the casing 1, and an insulating component 8 between the negative electrode of the battery cell 7 and the circuit board 20, the electrical isolation between the battery cell 7 and the circuit board 20 is effectively improved, ensuring the safety of the battery pack. Furthermore, the special connection method between the negative electrode sheet and the circuit board 20 further enhances the reliability and stability of the connection. Overall, this embodiment significantly improves the safety and reliability of the battery pack while ensuring its performance.

[0058] Example 2

[0059] The difference between this embodiment and Embodiment 1 is that the power display 41 is electrically connected to the circuit board 20 and is in a normally open state. A switch 51 is provided on the circuit board 20 to control the power supply of the power display 41, and a spring-loaded button 5 corresponding to the switch 51 is provided on the housing 1. This achieves the effect of saving power consumption by allowing the user to turn the power display 41 on or off by pressing the spring-loaded button 5.

[0060] Specifically, switch 51 is either a tactile switch 51 or a micro switch 51, mounted at a designated location on circuit board 20. The contacts of switch 51 are made of silver or gold to ensure low contact resistance and long lifespan. The spring-loaded button 5 is an integral part of the housing 1 and can also be made of silicone or rubber, providing good elasticity and wear resistance. The top of the spring-loaded button 5 can be designed with a raised or recessed shape for easy user touch identification.

[0061] The implementation principle of this embodiment is as follows:

[0062] This embodiment achieves on-demand activation of the power indicator 41 by setting a switch 51 on the circuit board 20 to control the power supply of the power indicator 41, and setting a corresponding elastic button 5 on the housing 1. This design not only saves power consumption but also improves the battery pack's endurance, especially in low-power conditions, extending battery usage time. This embodiment further enhances the energy-saving performance of the battery pack while ensuring a good user experience.

[0063] Example 3

[0064] This embodiment provides a handheld tool, including a convenient battery pack as described in the above embodiments. This handheld tool can be an electric screwdriver, electric scissors, electric grinder, etc., suitable for various household and industrial applications. By integrating a convenient battery pack, the portability and ease of use of the handheld tool are significantly improved.

[0065] Specifically, the main body of the handheld tool can be made of plastic or metal, and is lightweight and durable. The handheld tool has terminals for electrical connection to the battery pack, facilitating power supply from the battery pack. The battery pack housing 1 has heat dissipation holes 13, located on the end face away from the circuit board 20 or on the side of the housing 1. The diameter and spacing of the heat dissipation holes 13 are determined according to heat dissipation requirements to ensure sufficient airflow. The edges of the heat dissipation holes 13 are chamfered or rounded to prevent sharp edges from scratching hands or cables.

[0066] The implementation principle of this embodiment is as follows:

[0067] This embodiment integrates a conveniently operated battery pack into the handheld tool. Electrical connection is achieved through the plug-in mating of the battery pack and the handheld tool, making installation and replacement quick and easy, significantly improving the portability and ease of use of the handheld tool. The heat dissipation vents 13 in the battery pack ensure sufficient airflow, and the heat sink increases the heat dissipation area, improving heat dissipation efficiency. Overall, this embodiment significantly improves the portability and ease of use while maintaining the performance of the handheld tool.

[0068] 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, modifications, substitutions, and variations can be made to this utility model without departing from its spirit and scope, and all such changes, modifications, substitutions, and variations fall within the scope of the claimed utility model.

Claims

1. A convenient-to-use battery pack, characterized in that, The device includes a housing, a battery cell, and a circuit board. The battery cell is electrically connected to the circuit board, and the battery cell and the circuit board are disposed inside the housing. The circuit board is electrically connected to a charging / discharging interface, a discharging terminal, and a power display. The power display is used to display the battery cell's power level. The housing is made of transparent material corresponding to the position of the power display, and the housing has an opening for exposing the charging / discharging interface and the discharging terminal.

2. The convenient-to-operate battery pack according to claim 1, characterized in that, The power display is electrically connected to the circuit board and is in a normally open state. A switch for controlling the power display is provided on the circuit board, and a spring button corresponding to the switch is provided on the housing.

3. The convenient-to-operate battery pack according to claim 1, characterized in that, The power indicator includes a dual-color LED indicator. In the charging state, the LED indicator displays the charging status using a first color and the fully charged status using a second color. In the discharging state, the LED indicator displays the low-power status using a first color.

4. The convenient-to-operate battery pack according to claim 1, characterized in that, The battery cell is electrically connected to the circuit board via a positive electrode connector and a negative electrode connector, and the positive electrode connector is electrically connected to the discharge terminal.

5. The convenient-to-operate battery pack according to claim 4, characterized in that, A first insulating sheet is provided between the positive electrode of the battery cell and the housing, and an insulating component is provided between the negative electrode of the battery cell and the circuit board.

6. The convenient-to-operate battery pack according to claim 5, characterized in that, The insulating component includes a second insulating layer and an adhesive backing layer, wherein the second insulating layer is fixed to the circuit board as a whole by the adhesive backing layer.

7. The convenient-to-operate battery pack according to claim 5, characterized in that, The negative electrode of the battery cell is electrically connected to the circuit board via a negative electrode plate. The insulating component is located between the negative electrode plate and the circuit board. The negative electrode plate passes through the circuit board and is electrically connected to the side of the circuit board opposite to the battery cell.

8. The convenient-to-operate battery pack according to claim 1, characterized in that, The housing is provided with heat dissipation holes, which are located on the end face away from the circuit board or on the side of the housing.

9. The convenient-to-operate battery pack according to claim 8, characterized in that, Multiple heat dissipation holes are provided and arranged along the length of the housing, and the multiple heat dissipation holes are symmetrically arranged on the side of the housing.

10. A handheld tool, characterized in that, Includes the convenient-to-operate battery pack as described in any one of claims 1-9.

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