Battery pack and electrode holder

Abstract

The application relates to the technical field of electric tools, in particular to a battery pack and an electrode seat, wherein the battery pack comprises a circuit board and a voltage switching assembly; the voltage switching assembly comprises a mounting box arranged on the circuit board; a plurality of plug-in terminals for cooperating with electrode pieces are arranged on the circuit board; a support frame is arranged on one side of the mounting box close to the plug-in terminals; the support frame comprises a positioning plate parallel to and spaced from the circuit board, the positioning plate is provided with positioning holes, the plug-in terminals are provided with pins, and at least part of the pins are arranged to pass through the positioning holes and are connected with the circuit board. The application can effectively enhance the installation stability of the plug-in terminals and prolong the service life of the battery pack.

Description

Technical Field

[0001] This application relates to the field of power tool technology, and more specifically, to a battery pack and electrode holder. Background Technology

[0002] In existing technologies, power tools commonly employ detachable battery packs to improve ease of use. However, in actual operation, when the battery pack is nearly depleted, the user needs to remove it from the power tool and plug it into a charger for recharging. This process involves frequent plugging and unplugging of the battery pack from both the power tool's and charger terminals.

[0003] However, because the connectors on the circuit boards inside the battery pack are typically quite high, they are easily pushed or pulled by external forces during repeated plugging and unplugging operations. This external force often causes the pins at the bottom of the connectors to wobble, leading to loosening of the connectors over long-term use. Loosening of the connectors not only affects the stability of the electrical connection between the battery pack and power tools or chargers, but can also lead to poor contact, overheating, or even damage to circuit components, ultimately reducing the overall lifespan and reliability of the battery pack. Utility Model Content

[0004] The purpose of this application is to provide a battery pack that can effectively enhance the installation stability of the plug terminals and improve the service life of the battery pack.

[0005] Another objective of this application is to provide an electrode holder that enables quick insertion into a battery pack without causing the insertion terminals to loosen during repeated insertions, thus achieving a stable electrical connection.

[0006] The embodiments of this application are implemented as follows:

[0007] In a first aspect, embodiments of this application provide a battery pack, including a circuit board and a voltage switching assembly; the voltage switching assembly includes a mounting box disposed on the circuit board; the circuit board is provided with a plurality of plug terminals for cooperating with and connecting to electrode plates; the mounting box is provided with a support frame on the side near the plug terminals; the support frame includes a positioning plate spaced parallel to the circuit board, the positioning plate is provided with positioning holes, the plug terminals have pins, at least a portion of the pins cooperate to pass through the positioning holes and connect to the circuit board.

[0008] As an optional implementation, the pin is provided with a height limiting part, which abuts against the positioning plate to generate a force that prevents the plug terminal from approaching the circuit board.

[0009] As an optional implementation, the mounting box includes a bottom housing disposed on the surface of the circuit board and a top housing snapped onto the bottom housing; the top housing and the bottom housing are connected by multiple sets of snap-fit ​​assemblies; the support frame is integrally formed with the bottom housing, and there are clearance spaces on both sides of the connection between the support frame and the bottom housing, and at least two sets of snap-fit ​​assemblies are respectively located in the clearance spaces.

[0010] As an optional implementation, the voltage switching assembly further includes a switching element disposed within the mounting box and a trigger element connected at one end to the switching element; the trigger element is driven to move the switching element in a straight line; the other end of the trigger element penetrates the side wall of the mounting box and extends to the outside of the mounting box; the number of plug terminals on both sides of the extension direction of the trigger element is the same.

[0011] As an optional implementation, the trigger has a first guide portion, and the support frame is provided with a first guide groove whose extension direction is consistent with the moving direction of the switching component, and the first guide portion is connected to the first guide groove.

[0012] As an optional implementation, the first guide portion is provided with a second guide groove with an opening facing the first guide groove, and the extension direction of the second guide groove is consistent with that of the first guide groove; the support frame is provided with a second guide portion that cooperates and connects with the second guide groove.

[0013] As an optional implementation, the switching component is provided with a limiting block on the side opposite to the trigger component; the limiting block abuts against the inner wall of the mounting box, generating a force that prevents the switching component from moving.

[0014] As an optional implementation, the support frame includes an end baffle away from the mounting box; one end of the end baffle abuts against the circuit board, and the other end extends to near the plug-in terminal, with the positioning plate located within the range of the end baffle in a direction perpendicular to the circuit board.

[0015] As an optional implementation, the support frame further includes a plurality of side guards, which are connected to the end side baffles and divide the support frame into compartments corresponding one-to-one with the plug-in terminals.

[0016] Secondly, embodiments of this application provide an electrode holder, including the electrode holder body that is engaged with the aforementioned battery pack; the electrode holder body is provided with a plurality of electrode pieces that are inserted into the plug-in terminals.

[0017] The beneficial effects of the embodiments of this application include:

[0018] The battery pack provided in this application embodiment has a support frame with positioning holes near the plug terminals. The plug pins pass through the positioning holes before being inserted into the circuit board. The positioning holes limit and guide the plug pins, reducing lateral movement. Therefore, this application embodiment can improve the stability of the plug terminals during insertion and removal; reduce stress concentration at the connection between the plug pins and the circuit board, prevent loosening of the plug terminals, and extend service life. This application embodiment can make the overall structure of the plug terminals more stable, that is, stronger resistance to tension and pushing, improving the reliability of the battery pack in complex usage environments. In addition, this application embodiment can also improve assembly efficiency, reduce assembly error rate, and improve product consistency and yield.

[0019] The electrode holder provided in this application embodiment enables quick insertion and connection with the aforementioned battery pack, facilitating rapid battery pack replacement and charging operations for users. During repeated insertion and connection of the electrode holder and battery pack, the connection terminals will not loosen, ensuring a long-term, reliable, and stable electrical connection. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is one of the structural schematic diagrams of the voltage switching component in the embodiments of this application;

[0022] Figure 2 This is a schematic diagram of the electrode holder structure according to an embodiment of this application;

[0023] Figure 3 This is a second schematic diagram of the structure of the voltage switching component according to an embodiment of this application;

[0024] Figure 4 This is the third schematic diagram of the voltage switching component in the embodiments of this application;

[0025] Figure 5 This is the fourth schematic diagram of the voltage switching component in the embodiments of this application;

[0026] Figure 6 This is the fifth schematic diagram of the voltage switching component in the embodiments of this application;

[0027] Figure 7 This is the sixth schematic diagram of the voltage switching component in the embodiments of this application;

[0028] Figure 8This is the seventh schematic diagram of the voltage switching component in the embodiments of this application;

[0029] Figure 9 This is the eighth schematic diagram of the voltage switching component in the embodiments of this application.

[0030] Icons: 10-Circuit board; 100-Plug-in socket; 20-Switching component; 200-First plug-in component; 201-Second plug-in component; 205-Limiting block; 30-Trigger component; 305-First guide part; 306-Second guide groove; 40-Mounting box; 403-Bottom housing; 404-Top housing; 405-Snap-on assembly; 50-Support frame; 501-Positioning plate; 502-Positioning hole; 503-Allowing space; 504-End side baffle; 505-First guide groove; 506-Second guide part; 507-Side guard plate; 60-Plug-in terminal; 601-Pin; 602-Height limiting part; 80-Electrode holder body; 801-Electrode sheet. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, 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 some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0032] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0033] It should be noted that similar reference numerals 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. Furthermore, the terms "first," "second," "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0034] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" 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 application based on the specific circumstances.

[0035] Because the connectors on the circuit boards inside the battery pack are typically quite high, they are easily pushed or pulled by external forces during repeated plugging and unplugging operations. This external force often causes the pins at the bottom of the connectors to wobble, leading to loosening of the connectors over time. Loosening of the connectors not only affects the stability of the electrical connection between the battery pack and the power tool or charger, but can also lead to poor contact, overheating, or even damage to circuit components, ultimately reducing the overall lifespan and reliability of the battery pack.

[0036] To address the aforementioned technical problems, embodiments of this application provide a battery pack and electrode holder.

[0037] Reference Figure 1 , Figure 2 As shown, the battery pack provided in this embodiment includes a circuit board 10 and a voltage switching assembly; the voltage switching assembly includes a mounting box 40 disposed on the circuit board 10; the circuit board 10 is provided with a plurality of plug-in terminals 60 for cooperating with and connecting to electrode plates 801; the mounting box 40 is provided with a support frame 50 on the side near the plug-in terminals 60. (Refer to...) Figure 3 As shown, the support frame 50 includes a positioning plate 501 spaced parallel to the circuit board 10, and the positioning plate 501 is provided with positioning holes 502. (Refer to...) Figure 4 As shown, the plug terminal 60 has pins 601, at least a portion of which engage through the positioning hole 502 and are connected to the circuit board 10.

[0038] It should be noted that, in this embodiment, the pins 601 of the plug terminal 60 are located at the lower end of the plug terminal 60, and the upper end of the plug terminal 60 is used for plug-in electrical connection with the electrode plates 801 on the electrode holder of an external device. The external device can be a power tool or a charger. The pins 601 extending from the bottom of the plug terminal 60 are inserted into the circuit board 10 and soldered in place to achieve electrical connection.

[0039] It should be noted that, in this embodiment, the support frame 50 is located on the side of the mounting box 40 near the plug-in terminal 60. The positioning plate 501 is parallel to and spaced apart from the circuit board 10, serving as a spatial positioning and structural support. The positioning hole 502 is located on the positioning plate 501, and its position corresponds to the pin 601 of the plug-in terminal 60.

[0040] During installation, pin 601 needs to pass through positioning hole 502 first, then be inserted into circuit board 10 and fixed.

[0041] It should be noted that the opening size of the positioning hole 502 is basically consistent with the cross-section of the pin 601 to achieve a mating arrangement. Since the insertion part of the plug terminal 60 is located at the upper end and is relatively high, uneven force may occur during insertion and removal, which may cause the pin 601 to wobble and become loose after long-term use.

[0042] The technical effects that the embodiments of this application can produce are as follows:

[0043] In this embodiment, a support frame 50 with a positioning hole 502 is provided near the plug terminal 60. The plug pin 601 first passes through the positioning hole 502 and then is inserted into the circuit board 10. The positioning hole 502 limits and guides the plug pin 601, reducing lateral wobbling of the plug pin 601. Therefore, this embodiment can improve the stability of the plug terminal 60 during the insertion and removal process; reduce stress concentration at the connection between the plug pin 601 and the circuit board 10, prevent the plug terminal 60 from loosening, and extend its service life.

[0044] The positioning hole 502 in this embodiment can serve as a guide channel for the insertion of the pin 601, making it easier to align the pin 601 during assembly. In effect, the above-mentioned setting can improve assembly efficiency, reduce assembly error rate, and improve product consistency and yield.

[0045] The support frame 50 in this embodiment provides additional structural support for the plug-in terminal 60, and the positioning plate 501 is parallel to the circuit board 10, forming a spatially stable structure. Therefore, this embodiment makes the overall structure of the plug-in terminal 60 more stable, that is, it has stronger resistance to tension and pushing, and improves the reliability of the battery pack in complex usage environments.

[0046] Meanwhile, because pin 601 is accurately positioned and inserted into circuit board 10 through positioning hole 502, the connection of pin 601 is more stable, the contact area is larger, and it is less prone to displacement during insertion and removal. This effectively improves the stability and conductivity of the electrical connection during use, while also reducing heat generation caused by poor contact.

[0047] Reference Figure 4 As shown, in one optional implementation, the pin 601 is provided with a height limiting part 602, which abuts against the positioning plate 501 to generate a force that prevents the plug-in terminal 60 from approaching the circuit board 10.

[0048] It should be noted that, in this embodiment of the application, a height limiting part 602 is provided on the pin 601, the main function of which is to limit the depth of the pin 601 inserted into the circuit board 10. When the pin 601 passes through the positioning hole 502, the height limiting part 602 will contact the side of the positioning plate 501 away from the circuit board 10, preventing the pin 601 from penetrating further into the circuit board 10.

[0049] By setting the height limiting part 602 as described above, it can be ensured that each plug-in terminal 60 is inserted into the circuit board 10 to a consistent depth, thus avoiding poor contact problems caused by inconsistent insertion depth.

[0050] Similarly, the embodiments of this application can enhance connection stability. This is because the contact between the height limiting part 602 and the positioning plate 501 provides additional support, reducing the possibility of displacement of the plug terminal 60 due to external vibration or impact, and enhancing the stability of the entire electrical connection.

[0051] During the assembly process, workers or automated equipment can quickly determine whether the insertion operation is complete by observing or sensing whether the height limit part 602 has abutted against the positioning plate 501, without the need for additional measurement or adjustment steps, thus improving assembly efficiency.

[0052] Reference Figure 5 As shown, in one optional implementation, the mounting box 40 includes a bottom housing 403 disposed on the surface of the circuit board 10, and a top housing 404 fastened to the bottom housing 403; the top housing 404 and the bottom housing 403 are connected by multiple sets of snap-fit ​​components 405; the support frame 50 is integrally formed with the bottom housing 403, and there are clearance spaces 503 on both sides of the connection between the support frame 50 and the bottom housing 403, and at least two sets of snap-fit ​​components 405 are respectively located in the clearance spaces 503.

[0053] It should be noted that the design, which uses a bottom housing 403 and a top housing 404 that mate and are connected by a snap-fit ​​assembly 405, allows for tool-free, rapid assembly and disassembly of the mounting box. This not only significantly improves production efficiency but also greatly facilitates later maintenance and replacement of internal components.

[0054] It should be noted that the integrated design of the support frame 50 and the bottom housing 403 improves the overall rigidity and deformation resistance of the structure, significantly enhancing the stability and reliability of the overall structure. In particular, for the support of the plug-in terminal 60, the robust support structure provides more stable support, ensuring that it can maintain good performance when facing complex working conditions such as vibration or impact.

[0055] The embodiments of this application rationally arrange the position of the buckle assembly 405 by designing the clearance space 503, which not only avoids mutual interference between structures, but also saves valuable space, making the entire mounting box 40 compact and neat in appearance.

[0056] Reference Figure 1 , Figure 5As shown, as an optional implementation, the voltage switching assembly also includes a switching element 20 disposed in the mounting box 40 and a trigger element 30 connected to the switching element 20 at one end; the trigger element 30 is driven to move the switching element 20 in a straight line; the other end of the trigger element 30 passes through the side wall of the mounting box 40 and extends to the outside of the mounting box 40; the number of plug terminals 60 on both sides of the extension direction of the trigger element 30 is the same.

[0057] Specifically, refer to Figure 6 , Figure 7 As shown, a first connector 200 and a second connector 201 are installed on the switching member 20; a connector 100 is provided on the circuit board 10; the connector 100 is located between the first connector 200 and the second connector 201; the switching member 20 is driven to move in a straight line, the second connector 201 moves away from the connector 100, the first connector 200 moves closer to the connector 100 and plugs into the connector 100, so that the battery pack outputs a first voltage; or, the first connector 200 moves away from the connector 100, the second connector 201 moves closer to the connector 100 and plugs into the connector 100, so that the battery pack outputs a second voltage; the first voltage is greater than the second voltage.

[0058] The linear movement direction of the switching member 20 is the interval direction between the first plug member 200 and the second plug member 201.

[0059] It should be noted that the voltage switching component in this embodiment of the application achieves flexible switching of voltage output state by adopting a linear movement switching structure. Specifically, the switching element 20 moves linearly under the drive of the trigger element 30, and can switch the connection path between different positions, thereby changing the voltage level output by the battery pack.

[0060] It should be noted that, in this embodiment, one end of the trigger 30 extends outside the mounting box 40, allowing the user or external device to directly apply operating force to the trigger 30, thereby realizing the function of manually switching the voltage. Compared with traditional knob-type or electronic control switching methods, this mechanical linear trigger structure in this embodiment has a more direct response, higher reliability, and is less susceptible to electromagnetic interference, making it suitable for stable operation under complex working conditions.

[0061] In addition, in terms of structural layout, the design ensures that the number of plug terminals 60 on both sides of the extension direction of the trigger 30 is consistent. This helps to balance the electrical distribution on the circuit board 10 and reduce problems such as uneven current or thermal stress concentration caused by asymmetrical wiring.

[0062] In summary, the above-described implementation method, through reasonable structural design, not only improves the convenience and stability of voltage switching operations, but also enhances the adaptability and overall reliability of the battery pack.

[0063] Reference Figure 8 , Figure 9 As shown, in one optional implementation, the trigger member 30 has a first guide portion 305, and the support frame 50 is provided with a first guide groove 505 whose extension direction is consistent with the moving direction of the switching member 20. The first guide portion 305 and the first guide groove 505 are connected in cooperation.

[0064] It should be noted that the first guide groove 505 is located in the middle of the support frame 50, and its extension direction is consistent with the movement direction of the switching member 20. This guide groove provides a clear movement path for the trigger member 30, ensuring that the trigger member 30 can slide smoothly in a straight direction. The first guide portion 305 is located on the trigger member 30 and is connected to the first guide groove 505 on the support frame 50. When the trigger member 30 is subjected to a thrust, the first guide portion 305 slides along the first guide groove 505, thereby guiding the trigger member 30 and the switching member 20 connected to it to move in a predetermined direction.

[0065] In this embodiment, the cooperative design of the first guide groove 505 and the first guide part 305 ensures that the trigger 30 can only move along a predetermined straight path, avoiding lateral offset or wobbling. This precise guiding mechanism improves the operational accuracy during voltage switching and reduces insertion failures or poor contact caused by mechanical displacement deviations.

[0066] Reference Figure 8 , Figure 9 As shown, in one optional embodiment, the first guide portion 305 is provided with a second guide groove 306 with an opening facing the first guide groove 505, and the extension direction of the second guide groove 306 is consistent with that of the first guide groove 505; the support frame 50 is provided with a second guide portion 506 that cooperates and connects with the second guide groove 306.

[0067] Furthermore, in this embodiment, a second guide groove 306 is provided on the first guide portion 305, and a second guide portion 506 is provided on the support frame 50. The cooperation between the second guide portion 506 and the second guide groove 306 further enhances the stability of the linear movement of the trigger element 30, preventing lateral swaying. This embodiment improves the operational accuracy during voltage switching through this precise guiding mechanism.

[0068] Reference Figure 8 As shown, as an optional implementation, the switching component 20 is provided with a limiting block 205 on the side away from the trigger component 30; the limiting block 205 abuts against the inner wall of the mounting box 40, generating a force to block the movement of the switching component 20.

[0069] It should be noted that the limiting block 205 in this embodiment is located on the side of the switching member 20 away from the trigger member 30. When the switching member 20 moves in a straight line, the limiting block 205 will contact the inner wall of the mounting box 40 to prevent the switching member 20 from moving beyond the predetermined range.

[0070] The above-mentioned design effectively prevents electrical connection failure caused by excessive movement of the switching element 20, ensuring the safety and reliability of the voltage switching process. The limit block 205 acts as a physical barrier, immediately preventing further movement of the switching element 20 when it reaches the preset position, thus preventing damage risks caused by excessive travel.

[0071] Reference Figure 9 As shown, in one optional implementation, the support frame 50 includes an end baffle 504 away from the mounting box 40; one end of the end baffle 504 abuts against the circuit board 10, and the other end extends to near the plug-in terminal 60. In a direction perpendicular to the circuit board 10, the positioning plate 501 is located within the range of the end baffle 504.

[0072] It should be noted that the end baffle 504 provides a strong physical barrier from one side, effectively preventing the plug-in terminal 60 from shifting or tilting due to external forces.

[0073] In the direction perpendicular to the circuit board 10, the positioning plate 501 and the height limiting part 602 are approximately located in the middle of the end side baffle 504.

[0074] It should be noted that the positioning plate 501 ensures that the pin 601 can be accurately inserted into the circuit board 10 along a predetermined path, while the height limiting part 602 limits the maximum insertion depth of the pin 601. The combination of the two makes the insertion process safer and more reliable. In addition, the positioning plate 501 and the height limiting part 602 are located approximately in the middle of the end baffle 504. This design helps to evenly distribute the pressure on the plug terminal 60, reduce the risk of damage caused by local stress concentration, and extend the service life of the plug terminal 60 and the entire battery pack.

[0075] Reference Figure 9 As shown, as an optional implementation, the support frame 50 also includes a plurality of side guards 507, which are connected to the end side baffles 504 and divide the support frame 50 into compartments corresponding to the plug-in terminals 60.

[0076] It should be noted that by adding multiple lateral guard plates 507 to the support frame 50 and dividing the support frame 50 into compartments corresponding to the plug-in terminals 60, this embodiment of the application achieves more refined independent support and protection for each plug-in terminal 60. This embodiment of the application solves the problem of easy mutual interference between plug-in terminals 60 in traditional structures. Since each plug-in terminal 60 is confined to an independent compartment, its lateral movement or offset is effectively limited, thereby significantly improving the stability and consistency of the plugging process.

[0077] Reference Figure 2As shown, this application embodiment provides an electrode holder, including the electrode holder body 80 that is engaged with the battery pack described above; the electrode holder body 80 is provided with a plurality of electrode pieces 801 that are inserted into the plug-in terminals 60.

[0078] It should be noted that the electrode holder body 80 in this embodiment can be disposed on a power tool. When the electrode holder body 80 of the power tool is plugged into the battery pack, the battery pack can supply power to the power tool. Similarly, the electrode holder body 80 can also be disposed in a charger, and the charger can charge the battery pack when connected to the battery pack through the electrode holder.

[0079] 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 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 battery pack, characterized in that, The device includes a circuit board (10) and a voltage switching assembly; the voltage switching assembly includes a mounting box (40) disposed on the circuit board (10); the circuit board (10) is provided with a plurality of plug terminals (60) for cooperating with and connecting to electrode plates (801); the mounting box (40) is provided with a support frame (50) on the side near the plug terminals (60); the support frame (50) includes a positioning plate (501) spaced parallel to the circuit board (10), the positioning plate (501) is provided with a positioning hole (502), the plug terminal (60) has a pin (601), at least a portion of the pin (601) cooperates to pass through the positioning hole (502) and is connected to the circuit board (10).

2. The battery pack according to claim 1, characterized in that, The pin (601) is provided with a height limiting part (602), which abuts against the positioning plate (501) to generate a force that prevents the plug terminal (60) from approaching the circuit board (10).

3. The battery pack according to claim 1, characterized in that, The mounting box (40) includes a bottom housing (403) disposed on the surface of the circuit board (10) and a top housing (404) fastened to the bottom housing (403); the top housing (404) and the bottom housing (403) are connected by multiple sets of snap-fit ​​assemblies (405); the support frame (50) is integrally formed with the bottom housing (403), and there are clearance spaces (503) on both sides of the connection between the support frame (50) and the bottom housing (403), and at least two sets of snap-fit ​​assemblies (405) are respectively located in the clearance spaces (503).

4. The battery pack according to claim 1, characterized in that, The voltage switching assembly further includes a switching element (20) disposed in the mounting box (40) and a trigger element (30) connected at one end to the switching element (20); the trigger element (30) is driven to move the switching element (20) in a straight line; the other end of the trigger element (30) passes through the side wall of the mounting box (40) and extends to the outside of the mounting box (40); the number of the plug terminals (60) on both sides of the extension direction of the trigger element (30) is the same.

5. The battery pack according to claim 4, characterized in that, The trigger (30) has a first guide (305), and the support frame (50) has a first guide groove (505) whose extension direction is consistent with the moving direction of the switching member (20). The first guide (305) and the first guide groove (505) are connected in cooperation.

6. The battery pack according to claim 5, characterized in that, The first guide portion (305) is provided with a second guide groove (306) with an opening facing the first guide groove (505), and the extension direction of the second guide groove (306) is consistent with that of the first guide groove (505); the support frame (50) is provided with a second guide portion (506) that cooperates and connects with the second guide groove (306).

7. The battery pack according to any one of claims 4-6, characterized in that, The switching component (20) is provided with a limiting block (205) on the side away from the trigger component (30); the limiting block (205) abuts against the inner wall of the mounting box (40) to generate a force that prevents the switching component (20) from moving.

8. The battery pack according to claim 1, characterized in that, The support frame (50) includes an end baffle (504) away from the mounting box (40); one end of the end baffle (504) abuts against the circuit board (10), and the other end extends to the vicinity of the plug-in terminal (60). In a direction perpendicular to the circuit board (10), the positioning plate (501) is located within the range of the end baffle (504).

9. The battery pack according to claim 8, characterized in that, The support frame (50) also includes a plurality of side guards (507), which are connected to the end side baffles (504) and divide the support frame (50) into compartments corresponding to the plug-in terminals (60).

10. An electrode holder, characterized in that, It includes an electrode holder body (80) that engages with the battery pack according to any one of claims 1-9; the electrode holder body (80) is provided with a plurality of electrode pieces (801) that are inserted into the plug-in terminal (60).

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