A battery pack

Abstract

The application relates to the field of power supply devices, and specifically discloses a battery pack which comprises a main body shell, at least one group of chargeable battery units arranged in the main body shell, a circuit board electrically connected with the chargeable battery units, a discharge terminal group arranged on the circuit board, the battery pack having a first output interface and a second output interface, the first output interface being suitable for electrically connecting an electric tool, and the second output interface being suitable for electrically connecting a 3C electronic device; wherein the first output interface is a bidirectional PIN port, and the second output interface is a bidirectional USB-C port. According to the application, the bidirectional PIN port (the first output interface) and the bidirectional USB-C port (the second output interface) are configured, the battery pack can simultaneously adapt to the high-power requirement of the electric tool and the low-power supply of the 3C electronic device, the power supply requirement of different devices of a user can be met, and the burden of carrying multiple battery packs can be reduced.

Description

Technical Field

[0001] This application relates to the field of power supply devices, and more specifically to a battery pack. Background Technology

[0002] With the widespread use of power tools and portable electronic devices (3C devices), rechargeable battery packs, as their core power supply components, have increasingly prominent requirements for compatibility and versatility. Traditional battery packs are usually designed with a single output interface, which can only be adapted to specific types of devices, such as power tools or consumer electronics. This leads to users needing to carry multiple battery packs to meet the power supply needs of different devices, increasing usage costs and carrying burden.

[0003] For example, some battery packs attempt to improve compatibility by integrating multiple output interfaces, but the following problems still exist: most battery packs are only equipped with a unidirectional output interface (such as a dedicated power tool interface or a USB-A port), which cannot simultaneously meet the bidirectional power supply needs of high-power tools and low-power 3C devices. Utility Model Content

[0004] The purpose of at least one specific embodiment of this utility model is to overcome the defects of the prior art and provide a battery pack.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A battery pack, comprising:

[0007] Main body shell;

[0008] At least one set of rechargeable battery units is disposed inside the main body casing;

[0009] The circuit board is located inside the main housing and is electrically connected to the rechargeable battery cell.

[0010] The battery pack has a first output interface and multiple second output interfaces. The first output interface is suitable for electrically connecting to power tools, and the second output interfaces are suitable for electrically connecting to 3C electronic devices.

[0011] The first output interface is a bidirectional PIN port, and at least one second output interface is a bidirectional USB-C port.

[0012] Furthermore, the main body shell includes a protrusion and a base with a three-dimensional layered structure, the protrusion being formed by extending outward from the outer surface of the base;

[0013] The protrusion includes a top platform and a connecting part extending from the inside of the top platform, and the connecting part is connected to the outer surface of the base.

[0014] Furthermore, a discharge terminal group is installed on the circuit board, and a terminal hole group corresponding to the discharge terminal group is provided on the main body shell. The terminal hole group is constructed as the first output interface, and the power receiving terminal group of the power tool is adapted to pass through the terminal hole group to achieve electrical connection with the discharge terminal group.

[0015] Furthermore, both the first output interface and at least one second output interface are disposed on the main body shell, and the at least one second output interface is located at both ends of the main body shell relative to the first output interface.

[0016] Furthermore, the first output interface is located on the main body casing, and a second output interface is connected to the main body casing via a cable and electrically connected to the circuit board. The cable and the second output interface constitute a data line connected to the main body casing.

[0017] Furthermore, a guide rail area and a data cable placement area are formed between the top platform and the base, and a stop area is provided between the guide rail area and the data cable placement area to make the guide rail area and the data cable placement area independent of each other;

[0018] The guide rail area is suitable for guiding the battery pack to be inserted into the power tool, and the data cable placement area is suitable for storing the data cable.

[0019] Furthermore, the data cable placement area includes a cable groove for accommodating the cable and a limiting groove for limiting one of the second output interfaces.

[0020] Furthermore, a stop is provided at the junction of the guide rail area and the data cable placement area to limit the stroke of the battery pack when inserted into the power tool's battery mounting section.

[0021] Furthermore, the data cable placement area includes a limiting groove for limiting one of the second output interfaces, and a limiting ring is provided near the stop area. After the cable passes through the limiting ring, it forms a controllable movement path. The curved cable forms a flexible ring band between the limiting ring and the stop area, which is used as a handle for the battery pack.

[0022] Furthermore, the first output interface, guide rail area, stop part, wire groove and limiting groove are all set in the clamping area between the top platform and the base.

[0023] The beneficial effects of this utility model are as follows: 1. By configuring a first output interface (bidirectional PIN port) and multiple second output interfaces (at least one bidirectional USB-C port), this application enables the battery pack to simultaneously adapt to the power supply needs of power tools and 3C electronic devices. In particular, it can simultaneously power multiple 3C electronic devices, meeting the power supply needs of users in different device and multi-device usage scenarios, and reducing the burden of carrying multiple battery packs. If one second output interface is damaged, there are other second output interfaces available, making the battery pack highly fault-tolerant.

[0024] 2. The second output interface can be installed on the main casing of the battery pack, or it can be connected to the main casing via a cable and electrically connected to the circuit board to adapt to the power supply needs of different devices. Attached Figure Description

[0025] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the battery pack structure in Embodiment 1 of this utility model.

[0027] Figure 2 This is a structural schematic diagram of the battery pack from another angle in Embodiment 1 of this utility model.

[0028] Figure 3 This is a schematic diagram of the battery pack assembly in Embodiment 1 of this utility model.

[0029] Figure 4 This is a schematic diagram of the left side of the battery pack in Embodiment 1 of this utility model.

[0030] Figure 5 This is a schematic diagram of the right side of the battery pack in Embodiment 1 of this utility model.

[0031] Figure 6 This is a front view schematic diagram of the battery pack in Embodiment 1 of this utility model.

[0032] Figure 7 This is a schematic diagram of the main outer shell distribution structure of the battery pack in Embodiment 1 of this utility model.

[0033] Figure 8 This is a top view of the battery pack in Embodiment 1 of this utility model.

[0034] Figure 9 This is a schematic diagram showing the distribution of the connecting and non-connecting parts of the battery pack in Embodiment 1 of this utility model.

[0035] Figure 10 This is a diagram showing the dimensional relationship between the top platform and the base of the battery pack in Embodiment 1 of this utility model.

[0036] Figure 11 This is a cross-sectional schematic diagram of the battery pack in Embodiment 1 of this utility model.

[0037] Figure 12This is a schematic diagram of the configuration of the discharge terminal group on the circuit board in Embodiment 1 of this utility model.

[0038] Figure 13 This is a schematic diagram of another configuration of the discharge terminal group on the circuit board in Embodiment 1 of this utility model.

[0039] Figure 14 This is a schematic diagram of the battery pack charging a 3C electronic device in Embodiment 1 of this utility model.

[0040] Figure 15 This is a schematic diagram of the assembly of the battery pack and the power tool in Embodiment 1 of this utility model.

[0041] Figure 16 This is a schematic diagram of the battery mounting section of a power tool.

[0042] Figure 17 This is a cross-sectional diagram of the battery pack assembled with a power tool.

[0043] Figure 18 This is a schematic diagram of the battery pack assembled with a power tool.

[0044] Figure 19 This is a schematic diagram of the battery pack structure in Embodiment 2 of this utility model.

[0045] Figure 20 This is a top view of the battery pack in Embodiment 2 of this utility model.

[0046] Figure 21 This is a schematic diagram of the structure of one of the battery packs in Example 3.

[0047] Figure 22 This is a schematic diagram of another angle of one of the battery packs in Example 3.

[0048] Figure 23 This is a schematic diagram of the structure of the second battery pack in Example 3.

[0049] Figure 24 This is a schematic diagram of the battery pack in Example 3 from another angle. Detailed Implementation

[0050] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0051] Example 1

[0052] Reference Figure 1 , Figure 2 , Figure 3 , Figure 11 In one exemplary embodiment of the battery pack 100, the battery pack 100 includes a set of rechargeable battery units 20 disposed within the main body housing 10, a circuit board 30, and a discharge terminal group 40 disposed on the circuit board 30. The rechargeable battery units 20 and the circuit board 30 are connected by conductive sheets 50 (such as nickel sheets).

[0053] Reference Figure 9 , Figure 15 , Figure 18 The battery pack 100 can be connected to the power tool 200 and supply power to the power tool 200 through the connection part 300. The discharge terminal group 40 is provided on the side of the battery pack 100 facing the power tool 200. The connection part 300 has a corresponding end hole group 310. The connection part 300 can be connected to the power receiving terminal group 210 of the power tool 200 through the connection part 300. That is, the power receiving terminal group 210 passes through the end hole group 310 and is electrically connected to the discharge terminal group 40, thereby supplying power to the power tool 200.

[0054] Specifically, refer to Figure 5 , Figure 12 , Figure 13 The discharge terminal group 40 includes at least a positive output terminal 401, a communication output terminal 402, and a negative output terminal 403. The terminal hole group 310 includes a negative terminal hole 3101, a communication terminal hole 3102, and a positive terminal hole 3103. The positive input terminal 2101 of the power receiving terminal group 210 passes through the positive terminal hole 3103 and is electrically connected to the positive output terminal 401. The communication input terminal 2102 of the power receiving terminal group 210 passes through the communication terminal hole 3102 and is electrically connected to the communication output terminal 402. The negative input terminal 2103 of the power receiving terminal group 210 passes through the negative terminal hole 3101 and is electrically connected to the negative output terminal 403.

[0055] Continue to refer to Figure 9 , Figures 15 to 18 The connecting part 300 includes a guide rail for connecting to the power tool 200 and a locking groove 320 for locking the battery pack 100 onto the power tool 200. By operating (such as pressing or sliding) the latch actuator 220 provided on the power tool 200, the latch 230 is actuated, causing the latch 230 to separate from the locking groove 320, thereby performing an unlocking operation to facilitate the removal of the battery pack 100 from the power tool 200.

[0056] Specifically, the aforementioned guide rails include a first guide rail 330 and a second guide rail 340 arranged opposite to each other. The first guide rail 330 and the second guide rail 340 are located on both sides of the discharge terminal group 40 in the longitudinal direction. The first guide rail 330 and the second guide rail 340 define a first virtual plane P1 and a second virtual plane P2 in the transverse direction by their longitudinal depths. The first virtual plane P1 and the second virtual plane P2 are parallel to each other. The end hole group 310 corresponding to the discharge terminal group 40 is located between the first virtual plane P1 and the second virtual plane P2.

[0057] Furthermore, refer to Figure 4 , Figure 6 , Figure 7 The main body shell 10 includes a protrusion 10a and a base 10b with a three-dimensional layered structure. The protrusion 10a extends outward from the outer surface of the base 10b. Specifically, the protrusion 10a includes a top platform 350 and a connecting portion 360 extending from the inner side of the top platform 350. The connecting portion 360 is connected to the outer surface of the base 10b. Thus, the top platform 350 will be located at the top of the main body shell 10. The connection between the connecting portion 360 and the base 10b constitutes the support structure of the top platform 350. The connecting portion 300 constitutes a part of the protrusion 10a.

[0058] In short, the main body shell 10 includes a base 10b and a protrusion 10a protruding outward from its outer surface. The protrusion 10a has a stepped structure: the top is a top platform 350, and the middle part is connected to the base 10b through an inwardly recessed connecting part 360, forming a three-level three-dimensional layered structure of "base 10b → connecting part 350 → top platform 360", wherein the top platform 350 is located at the top of the main body shell 10.

[0059] Specifically, the connecting portion 300 constitutes part of the protrusion 10a, as detailed below:

[0060] In the longitudinal direction, the connecting portion 360 has a height value within a certain range, such as 3-10 mm, preferably 4.0-6.0 mm, more preferably 5.0-6.0 mm, such as 5.0 mm, 5.1 mm, 5.2 mm, etc. In the transverse direction, the outer edge of the top platform 350 extends outward at least partially beyond the connecting portion 360, and the outer edge and the outer surface of the connecting portion 360 have a distance difference within a certain range, such as 3.0-8.0 mm, preferably 4.0 mm. Thus, the top platform 350... The base 10b and the connecting part 360 located between them form the guide rail; the locking groove 320 is preferably provided on the outer surface of the top platform 350 or at the end of the guide rail, so that the connecting part including the guide rail (first guide rail 330 and second guide rail 340) and the locking groove 320 is formed on the top platform 350 and constitutes part of the top platform 350. When the battery pack 100 is connected to the power tool 200, the connecting part 300 is surrounded and covered by the battery mounting part 240 of the power tool 200.

[0061] The aforementioned protrusion 10a also includes a non-connecting portion 500, which extends to one side from the aforementioned connecting portion 300 to form an extensional structure at the same height as the top platform 350, in order to combine and form a complete protrusion 10a. When viewed from any side of the battery pack 100, the top surface of the aforementioned protrusion 10a (or top platform 350) is flush or substantially flat, so that the entire top surface of the protrusion (or the top surface of the top platform) presents a continuous and flat visual effect in the side view direction.

[0062] It is understandable that: "Flat top surface" means that the outermost surface of the convex part 10a (or the top platform 350) is flat when viewed from any side, without any undulations or steps. "Basically flat" means that a slight height difference within the range of 0-1mm is allowed without affecting the visual appearance, but the overall visual effect has no significant sense of step, and the height difference between different areas can be ignored.

[0063] The edge of the top surface extends outward to form an outer contour, which can remain flush with the edge of the top surface or be designed as a smooth curved surface. That is, the edge of the top platform 350 extends outward to form an outer contour, which is coplanar and flush with the top surface; or the outer contour is a smooth transition curved surface.

[0064] When the battery pack 100 is connected to the power tool 200, the non-connected portion is not surrounded or covered by the feet of the power tool. More preferably, a light display window for user interaction, such as a power indicator light strip display window, is also provided on the non-connected portion 500. More preferably, the light display window is located on the upper surface of the non-connected portion 500 so that the user can directly observe the display status of the light strip during operation. In this case, the light display window can be specifically set on the top surface or the outer contour.

[0065] It needs to be further explained that:

[0066] The aforementioned guide rail passes through the connecting portion 300 and the non-connecting portion 500 to connect, and a stop portion 600 is formed or provided at the connection point. The stop portion 600 is suitable for limiting the insertion stroke of the battery pack 100 relative to the power tool.

[0067] In this embodiment, the main body shell 10 includes an upper shell 101 and a lower shell 102. The top platform 350 is connected to the upper shell 101 of the main body shell 10 through the connecting part 360. During processing, the top platform 350, the connecting part 360 and the upper shell 101 can be integrally formed. After the top platform 350, the connecting part 360 and the upper shell 101 are integrally formed, they are connected to the lower shell 102 and can be assembled into the main body shell 10 of the entire battery pack 100, which is convenient to assemble.

[0068] Thus, the upper shell 101 and the lower shell 102 are combined to form the base 10b, and the top platform 350 and the connecting part 360 are combined to form the protrusion 10a. The protrusion 10a and the upper shell 101 are preferably integrally formed.

[0069] In this embodiment, the outer contours of the upper shell 101 and the lower shell 102 are basically consistent, and the outer edges of the upper shell 101 and the lower shell 102 are flush and coplanar.

[0070] Referring to the front view of the battery pack 100, when viewed from the front view direction, in the direction of the central axis of the first virtual plane P1 and the second virtual plane P2, the projection of the boss 350 is completely located within the top surface of the upper housing 101, or the projection of the protrusion 10a is completely located within the projection range of the base 10b. Furthermore, the ratio of the projection area of ​​the top platform 350 to the top surface area of ​​the upper housing 101 is 0.5-0.9.

[0071] Specifically, refer to Figure 10 The outer edge of the top platform 350 includes a left edge, a right edge, a front edge, and a rear edge. Correspondingly, the outer edge of the base 10b includes a left edge, a right edge, a front edge, and a rear edge. There is a distance between any one or more outer edges of the top platform 350 and the corresponding outer edge of the base 10b. Let L1 be the distance between the front edge of the top platform 350 and the front edge of the base 10b, L2 be the distance between the rear edge of the top platform 350 and the rear edge of the base 10b, L3 be the distance between the left edge of the top platform 350 and the left edge of the base 10b, and L4 be the distance between the right edge of the top platform 350 and the right edge of the base 10b. Where L1>L2, L1>L3, L1>L4; L2≥0; L3=L4≥0.

[0072] More preferably, L1 is located in the range of 8.0-15.0 mm, more preferably 8.0-13.0 mm, and even more preferably 9.0-11.0 mm, such as 9.0 mm, 10.0 mm, 10.4 mm, and 10.5 mm. This design, by shortening the distance between the front edge of the top platform 350 and the front edge of the base 10b, can effectively reduce the idle travel distance at the front end when the plug / interface is inserted, and improve the assembly alignment efficiency compared to conventional power tool battery packs.

[0073] When L2 = 0, the rear edge of the top platform 350 and the rear edge of the base 10b are completely flush along the length direction (X-axis) of the main body shell 10, that is, the edge projections of the two are in the same vertical plane, with no offset in the front-to-back direction. In this state, only the front end (front edge) of the top platform 350 protrudes outward, and the left and right edges protrude symmetrically (L3 = L4 ≥ 0), while the rear end maintains the same shape as the base 10b, forming an edge structure of "protruding front and flush rear". When L2 > 0, it is convenient to arrange the data cable for winding 3C equipment between the two edges. In particular, L2 is preferably 0-5.0mm, such as 4.5mm or 4.6mm.

[0074] When L3 = L4 = 0, the left and right edges of the top platform 350 are flush with the left and right edges of the base 10b. The top platform 350 is completely recessed within the width of the base 10b in the horizontal direction, forming a symmetrical rectangular or square outline (view from above). The projection plane of the top platform 350 is completely aligned with the base 10b in the horizontal direction, with no offset in the width direction, and its horizontal dimension is equal to the width of the base 10b. When L3 = L4 > 0, the edges of the top platform 350 are located inside the edges of the base 10b, that is, the left and right edges of the top platform 350 are recessed inward relative to the left and right edges of the base 10b. The horizontal width of the top platform 350 is less than the width of the base 10b. The first guide rail 330 and the second guide rail 340 are formed by extending from the left and right edges of the top platform 350 (because the top platform is recessed, the guide rail position is closer to the central axis). The two virtual planes are defined by the longitudinal depth of the guide rails. The lateral spacing is reduced, and the discharge terminal group 40 (end hole group) is surrounded by a narrower guide rail area, which improves the lateral positioning accuracy of the discharge terminal group 40. When the power receiving terminal group 210 of the power tool 200 is inserted, the fault tolerance space in the left and right directions is reduced, the forced alignment effect is enhanced, and the risk of poor terminal contact caused by lateral offset is reduced. After the top platform 350 is recessed, the left and right edges of the base 10b expand outward to form cantilever (width L3=L4), which can fit with the battery mounting part 240 of the power tool 200 to provide additional lateral support. Especially during the insertion process, the cantilever of the base 10b contacts the tool housing, sharing the lateral load of the top platform guide rail and reducing terminal misalignment caused by the deformation of the guide rail under force. Preferably, L3=L4 is preferably 0-7.0mm, more preferably 0-6.0mm, such as 5.9mm or 6.0mm. In this embodiment, the rechargeable battery unit 20 is positioned within the main body shell 10 or the base 10b by a frame 201. A buckle 202 can be provided on the frame 201. The circuit board 30 is fixed to the surface of the rechargeable battery unit 20 by the buckle 202. After the overall structure consisting of the top platform 350, the connecting part 360, and the upper shell 101 is spliced ​​with the lower shell 102, the rechargeable battery unit 20 and the circuit board 30 can be covered. After the overall structure consisting of the top platform 350, the connecting part 360, and the upper shell 101 is opened relative to the lower shell 102, the circuit board 30 can be manually removed from the surface of the rechargeable battery unit 20. The circuit board 30 can be installed and removed without screws, making the operation convenient.

[0075] Additionally, a locking groove 320 is formed on the surface of the top platform 350. The outer edge of the top platform 350 forms an outer contour, which includes side outer contours 3501 on both sides and a front outer contour 3502 at the front end. One side outer contour 3501 forms a first guide rail 330 with the top surface of the upper housing 101, and the other side outer contour 3501 forms a second guide rail 340 with the top surface of the upper housing 101. The front outer contour 3502 is mounted on the top platform 350 on the side facing the power tool 200. The end hole group 310 is formed on the connecting part 360 and located below the front outer contour 3502. The front outer contour 3502 above the end hole group 310 serves to shield foreign objects and also provides a certain degree of waterproofing, preventing foreign objects or rainwater falling from above the battery pack 100 from directly entering the end hole group 310.

[0076] Thus, when viewed from the front view facing the top platform 350, the end hole group 310 is not visible, as it is obscured and covered by the front outer contour 3502.

[0077] Furthermore, when the battery pack 100 is connected to the power tool 200, the front outer contour 3502 can also serve as a guide transition. When the battery pack 100 is initially inserted into the battery mounting portion 240 of the power tool 200's footplate, the front outer contour 3502 on the top platform 350 first extends into the battery mounting portion 240 of the power tool 200's footplate. Due to the arc-shaped structure design of the outer surface of the front outer contour 3502, the connecting portion 300 of the battery pack 100 can be smoothly inserted into the battery mounting portion 240 of the power tool 200's footplate, thus serving as a guide transition during the initial insertion process. After the connecting portion 300 and the battery mounting portion 240 of the footplate are initially inserted, the two guide strips 250 on the inner side of the battery mounting portion 240 of the footplate will respectively extend into the first guide rail 330 and the second guide rail 340 to form a sliding fit. To create a longitudinal limit on the battery pack 100, the battery pack 100 can only slide in the extending direction of the first guide rail 330 and the second guide rail 340. In the extending direction of the first guide rail 330 and the second guide rail 340, the battery pack 100 gradually moves closer to the power tool 200 until the end hole group 310 on the battery pack 100 is inserted into the power receiving terminal group 210 on the power tool 200. At the same time, the latch 230 on the power tool 200 slides to the position of the locking groove 320 on the top platform 350 and falls into the locking groove 320. The installed battery pack 100 cannot slide in the extending direction of the first guide rail 330 and the second guide rail 340. The battery pack 100 is then installed and locked at the battery mounting part of the power tool's foot plate. The area included by the connecting portion 300 on the battery pack 100 is the area covered by the battery mounting portion 240 of the foot plate. The dividing line BL between the connecting portion 300 and the non-connecting portion 500 is defined by the edge contour line of the battery mounting portion 240. The depth to which the area where the connecting portion 300 is located is inserted into the battery mounting portion 240 is defined by the length of the guide rail area. The length of the guide rail area is defined by the setting position of the stop portion 600.

[0078] It should be noted that the lengths of the first guide rail 330 and the second guide rail 340 are determined by the sliding stroke during the assembly of the battery pack 100. In the design, the length of the side profile 3501 on the top platform 350 can be greater than or equal to the lengths of the first guide rail 330 and the second guide rail 340.

[0079] Furthermore, since the connecting portion 360, the first guide rail 330, and the second guide rail 340 are all located in the space between the first virtual plane P1 and the second virtual plane P2, the height of the connecting portion 360 determines the longitudinal depth of the first guide rail 330 and the second guide rail 340. To emphasize the compactness of the connection between the top platform 350 and the upper housing 101, the height of the connecting portion 360 needs to be flexible. Since the end hole group 310 of the battery pack 100 is located on the connecting portion 360, the design height of the connecting portion 360 cannot be lower than the height of the end hole group 310. As mentioned above, the end hole group 310 includes a positive terminal hole 3103, a communication terminal hole 3102, and... The negative terminal hole 3101 corresponds to the discharge terminal group 40 inside the terminal hole group 310, which includes a positive output terminal 401, a communication output terminal 402, and a negative output terminal 403. When the positive output terminal 401, communication output terminal 402, and negative output terminal 403 are arranged horizontally on the circuit board 30 inside the battery pack 100, the corresponding positive terminal hole 3103, communication terminal hole 3102, and negative terminal hole 3101 on the connecting part 360 are horizontally extending terminal holes. When the positive output terminal 401, communication output terminal 402, and negative output terminal 403 are arranged vertically on the circuit board 30, the corresponding positive terminal hole 3101 on the connecting part 360 is... 3. The communication terminal hole 3102 and the negative terminal hole 3101 are longitudinally extending terminal holes. For example, if the length of the positive terminal hole 3103 is set to L and the width to W, since the terminal hole is a strip hole, L > W. If the discharge terminal group 40 is arranged laterally, the minimum height of the connecting part 360 only needs to be greater than W. If the discharge terminal group 40 is arranged longitudinally, the minimum height of the connecting part 360 needs to be greater than L. Therefore, in this embodiment, the positive output terminal 401, the communication output terminal 402, and the negative output terminal 403 are preferably arranged laterally on the circuit board 30. In this way, the minimum height of the connecting part 360 only needs to be greater than W. The height of the connecting part 360 is... The design is highly flexible, which can improve the compactness between the top platform 350 and the upper housing 101. In addition, after the positive output terminal 401, communication output terminal 402 and negative output terminal 403 are arranged horizontally on the circuit board 30, the width of each output terminal can be appropriately increased. This can increase the contact area with the power receiving terminal group 210 on the power tool 200, and the electrical connection between the discharge terminal group 40 and the power receiving terminal group 210 is better. Moreover, the increased width of each output terminal will not affect the height design of the connecting part 360. With the overall height of the connecting part 360 remaining unchanged, the size design of the discharge terminal group 40 is more flexible.

[0080] Since the overall size of the communication output terminal 402 is smaller than that of the positive output terminal 401 and the negative output terminal 403, in some embodiments, the positive output terminal 401 and the negative output terminal 403 are arranged horizontally on the circuit board 30, while the communication output terminal 402 is arranged vertically on the circuit board 30. The projected area of ​​the communication output terminal 402 on the circuit board 30 is smaller than the projected area of ​​the positive output terminal 401 or the negative output terminal 403 on the circuit board 30. Correspondingly, the positive terminal hole 3103 and the negative terminal hole 3101 extend horizontally on the surface of the main body housing 10, while the communication terminal hole 3102 extends vertically on the surface of the main body housing 10. After installation, the highest point of the communication output terminal 402 should not be higher than the highest point of the positive output terminal 401 and the negative output terminal 403. This will not affect the height design of the connecting part 360. After the communication output terminal 402 is vertically arranged on the circuit board 30, the overall contact area between the communication output terminal 402 and the circuit board 30 is small. Only one support foot is needed to solder it to the circuit board 30. In this way, there are fewer soldering points in the area corresponding to the terminal below the circuit board 30, which makes soldering more convenient (if the discharge terminal group 40 is arranged horizontally on the circuit board 30, not only will the space for the terminal arrangement above the circuit board 30 be cramped, but the soldering points below the circuit board 30 will be denser, and the soldering process will be more difficult). The soldering points below the circuit board 30 are more dispersed (compared to the all-horizontal arrangement), which reduces the point density in the soldering area of ​​the circuit board 30, reduces the risk of short circuits at the solder joints, and alleviates the heat dissipation concentration problem caused by excessively dense solder joints. Therefore, the alternating horizontal and vertical arrangement of the discharge terminal group 40 also improves the flexibility of the discharge terminal group 40 on the circuit board 30.

[0081] In addition, the positive output terminal 401 and the negative output terminal 403 are arranged horizontally on the circuit board 30, which can have a larger contact area with the power receiving terminal 210 of the power tool. Since the positive output terminal 401 and the negative output terminal 403 will carry load current (large current), the larger contact area makes the electrical and thermal conductivity better.

[0082] The positive output terminal 401 and negative output terminal 403 are arranged horizontally, while the communication output terminal 402 is arranged vertically. This effectively reduces the vertical space occupied by the circuit board 30, avoids the problem of increased battery pack thickness caused by vertical arrangement, and is more conducive to realizing the miniaturization and thinning design of the battery pack.

[0083] Furthermore, in order to achieve a thinner and lighter design for the battery pack 100, the distance between the highest point of the positive output terminal 401 and the negative output terminal 403 and the surface of the circuit board 30 is smaller than the diameter of the rechargeable battery cell 20.

[0084] In the positive output terminal 401, communication output terminal 402, and negative output terminal 403, the distance between adjacent terminals is less than the width of any single terminal.

[0085] Furthermore, the distance between the positive output terminal 401 and the negative output terminal 403 is greater than 1 / 2 of the width of the circuit board 30, but less than the overall width of the circuit board 30.

[0086] In this embodiment, the number of communication output terminals 402 can be designed to be two. The battery pack 100 has a protocol communication switching function. When the battery pack 100 is connected to the first platform power tool, the communication input terminal 2102 of the first platform power tool short-circuits the two communication output terminals 402 for the first protocol communication.

[0087] When the battery pack 100 is connected to the second platform power tool, the communication input terminal 2102 of the second platform power tool is electrically connected to the two communication output terminals 402 respectively for the second protocol communication.

[0088] Furthermore, the battery pack 100 in this embodiment has a first output interface and multiple second output interfaces. The first output interface is the terminal hole group 310 mentioned above. The first output interface is a bidirectional PIN port, through which the battery pack 100 can be electrically connected to the power tool 200. At least one second output interface is a bidirectional USB-C port 60. In this embodiment, both the first output interface and at least one second output interface are disposed on the main body shell 10, and at least one second output interface is located at both ends of the main body shell 10 relative to the first output interface. A dust plug is provided at the USB-C port 60. When the dust plug is closed, it can prevent dust. In addition, the USB-C port 60 can discharge to 3C electronic devices. After the USB-C port 60 of the battery pack 100 is connected to the data cable, the data cable can be connected to the 3C electronic device to charge the 3C electronic device. After the USB-C port 60 of the battery pack 100 is connected to the municipal power supply through the adapter, it can also charge the rechargeable battery unit 20 inside. Specifically, the USB-C port 60 can be installed on the connecting part 360, the upper shell 101, the lower shell 102, or the top platform 350.

[0089] The main body shell 10 integrates a bidirectional USB-C port 60, enabling the battery pack to meet the power supply needs of power tools and charge 3C electronic devices, thus solving the problem of the single function of traditional battery packs. At the same time, by configuring a bidirectional PIN port (first output interface) and a bidirectional USB-C port (second output interface), the battery pack can simultaneously adapt to the high power requirements of power tools and the low power consumption of 3C electronic devices, meeting the power supply needs of users for different devices and reducing the burden of carrying multiple battery packs.

[0090] This application configures a first output interface (bidirectional PIN port) and multiple second output interfaces (at least one bidirectional USB-C port) so that the battery pack 100 can simultaneously adapt to the power supply needs of power tools and 3C electronic devices. In particular, it can simultaneously power multiple 3C electronic devices, meeting the power supply needs of users in different and multi-device usage scenarios and reducing the burden of carrying multiple battery packs. If one second output interface is damaged, other second output interfaces can still be used, giving the battery pack high fault tolerance.

[0091] The battery pack of this application is designed with discharge terminal group 40 and end hole group 310, which can be directly connected to the power receiving terminal group 210 of the power tool 200 to supply power, maintaining the function of a traditional power tool battery pack. The newly added USB-C port 60 and wireless charging function make it suitable for charging everyday electronic devices at the same time, realizing "one power for multiple uses" and reducing the trouble for users to carry multiple power supplies.

[0092] The battery pack's main shell 10 features a magnetic wireless charging area 400, allowing users to directly attach wirelessly charging-enabled 3C electronic devices to the battery pack for charging without additional cables, making operation more convenient. It is also equipped with a bidirectional USB-C port 60, which is compatible with the wired fast charging needs of various 3C devices and supports bidirectional charging and discharging. It can power external devices or be used as a power bank to receive charging, enhancing the flexibility of use.

[0093] It should be noted that before the USB-C port 60 is installed, the battery pack 100 of this application can be connected to a municipal power supply via an adapter, and can also charge the rechargeable battery unit 20 inside. Therefore, there are two ways to charge the battery pack 100 itself: one is to charge it by connecting the adapter through the USB-C port 60, and the other is to charge it by connecting the adapter through its own discharge terminal group 40.

[0094] Additionally, refer to Figure 8 , Figure 14 Designed for discharging 3C electronic devices using the battery pack 100, the lower housing 102 of the battery pack 100 has a wireless charging area 400. Specifically, the wireless charging area 400 is located on the bottom surface of the base 10b. The wireless charging area 400 has a magnetic ring and a wireless charging design. A bracket 370 is hinged on the top platform 350. When the bracket 370 is not in use, it can be stored in the groove 380 on the surface of the top platform 350. In addition, when the bracket 370 is made of metal, a magnetic block can be set in the groove 380 at the free end of the bracket 370. When the bracket 370 is rotated to the surface position of the top platform 350, the magnetic block can attract the bracket 370, so that the bracket 370 is smoothly stored in the groove 380. This keeps the battery pack flat when not in use, making it easy to carry and store.

[0095] When the battery pack 100 needs to charge a 3C electronic device, the stand 370 can be unfolded so that the stand 370 is at a certain angle to the top platform 350. The entire battery pack 100 can be tilted and supported on the table via the stand 370. At this time, the magnetic ring and wireless charging area at the bottom of the entire battery pack 100 face the user. The user can directly attach the 3C electronic device to the wireless charging area, and the battery pack 100 can wirelessly charge the 3C electronic device.

[0096] It should be noted that the hinge position between the bracket 370 and the top platform 350 is close to the locking groove 320 on the top platform 350. In some embodiments, the hinge end 370a of the bracket 370 and the top platform 350 is constructed as an inner wall surface of the locking groove 320. In this way, when the bracket 370 is hinged to the groove 380 on the top platform 350, the reserved gap space between the hinge end 370a of the bracket 370 and the inner wall surface of one end of the groove 380 can form the locking groove 320. The locking groove 320 on the top platform 350 does not need to be opened separately, and the locking groove 320 can be constructed as part of the groove 380.

[0097] This application integrates the locking groove 320 into the main shell 10 of the battery pack, and integrates the hinge end 370a of the bracket 370 with the inner wall of the locking groove 320. This eliminates the need for a separate locking structure on the battery pack, which not only simplifies the shell structure and reduces production costs, but also improves the overall compactness and aesthetics of the battery pack. By organically combining the bracket 370, locking groove 320, and recess 380, this application avoids the damage to the appearance of the battery pack caused by traditional locking structures, maintains the overall design and streamlined appearance of the product, and maximizes its functionality.

[0098] Furthermore, refer to Figure 3 , Figure 8 To facilitate timely monitoring of the remaining power of the entire battery pack 100, a power indicator light strip 301 is installed on the circuit board 30. The power indicator light strip 301 is preferably an RGB tri-color light strip, with its light-emitting end located on the surface of the top platform 350. Furthermore, a trigger button 390 is installed on the top platform 350, at least partially located on the top surface of the non-connected portion 500, allowing it to be touched even when the power supply unit 100 is assembled with the power tool 200. The trigger button 390 is a capacitively sensitive button; when the user touches the trigger button 390, the power indicator light strip 301 (RGB tri-color light strip) is illuminated, and the color of the emitted light indicates the remaining power of the battery pack 100. For example, a green RGB tri-color light strip indicates sufficient remaining power; a yellow RGB tri-color light strip indicates low remaining power, suggesting charging; and a red RGB tri-color light strip indicates dangerously low remaining power, requiring immediate charging.

[0099] Example 2

[0100] Reference Figure 19 , Figure 20 In this embodiment, the surface of the top platform 350 can be directly provided with an opening groove. The difference between this embodiment and embodiment 1 is that a partition 380a is installed in the opening groove. The partition 380a directly divides the opening groove into a locking groove 320 and a recess 380. The hinge end 370a of the bracket 370 is close to the partition 380a and adjacent to the locking groove 320. The advantage of setting the partition 380a is that when the hinge end 370a of the bracket 370 becomes loose, the locking groove 320 formed by the partition 380a and the inner wall of the opening groove is still stable. When the bracket 370 becomes loose, it will not affect the normal locking of the locking groove 320 and the buckle on the power tool.

[0101] Example 3

[0102] Reference Figure 21-24 In another exemplary embodiment of the battery pack 100 shown, a guide rail region 70 (i.e., the first guide rail 330 and the second guide rail 340 in the above embodiment 1) and a data cable placement region 80 are formed between the top platform 350 and the base 10b (upper housing). A stop region 90 is provided between the guide rail region 70 and the data cable placement region 80 so that the guide rail region 70 and the data cable placement region 80 are independent of each other and do not interfere with each other. The data cable 700 includes a cable 701 and a USB connector 702. The USB connector 702 has the second output interface described in Embodiment 1. The difference between this embodiment and Embodiment 1 in terms of the arrangement of the second output interface is that the second output interface in Embodiment 1 is located on the main housing 10. In this embodiment, the second output interface is connected to the main housing 10 via the cable 701 and electrically connected to the circuit board 30. Since there are multiple second output interfaces, one second output interface can be installed on the main housing 10 of the battery pack, and another second output interface can be connected to the main housing 10 via the cable 701 and electrically connected to the circuit board 30, thus adapting to the power supply needs of different devices.

[0103] In one embodiment, a stop 90a is provided at the junction of the guide rail area 70 and the data cable placement area 80. The data cable placement area 80 includes a cable groove 801 for accommodating and clamping the cable 701 and a limiting groove 802 for limiting the USB connector 702. The stop 90a is suitable for limiting the insertion stroke of the battery pack 100 relative to the battery mounting part 240 of the foot plate. On the other hand, corresponding to the lead-out hole of the cable 701, one end of the cable 701 is fixedly electrically connected to the circuit board 30 and leads out from the lead-out hole, clamped in the cable groove 801, and the USB connector 702 is positioned in the limiting groove 802. When using the cable, the user can pull out the USB connector 702 and pull the cable 701 to pull the data cable 700 out of the data cable placement area 80 for use.

[0104] Furthermore, the aforementioned first guide rail 330, second guide rail 340, stop portion 90a, wire groove 801, and limiting groove 802 are all disposed in the clamping area between the top platform 350 and the base 10b (upper housing). Even further, the aforementioned end hole group 310 corresponding to the discharge terminal, first guide rail 330, second guide rail 340, stop portion 90a, wire groove 801, and limiting groove 802 are all disposed in the clamping area between the top platform 350 and the base 10b (upper housing).

[0105] Specifically, the connecting portion 300 has a first annular groove 800 formed in the distribution area of ​​the first guide rail 330, the end hole group 310, and the second guide rail 340, and the non-connecting portion 500 has a second annular groove 900 formed in the distribution area of ​​the stop portion 90a, the wire groove 801, and the limiting groove 802. The central axes of the first annular groove 800 and the second annular groove 900 are located in the same plane or are substantially located in the same plane.

[0106] Furthermore, the first annular groove 800 and the second annular groove 900 can be interconnected, and the connection and connection position is isolated by the stop portions 90a on both sides. At the same time, the stop portion 90a on one side corresponds to the lead-out hole of the cable 701, and the stop portion 90a on the other side corresponds to the limiting groove 802 of the interface of the USB connector 702.

[0107] In another possible embodiment, a stop area 90 is provided at the junction of the guide rail area 70 and the data cable placement area 80. The data cable placement area 80 includes a limiting groove 802 for limiting the USB connector 702. The stop area 90 is suitable for limiting the insertion stroke of the battery pack 100 relative to the battery mounting part 240 of the foot plate. On the other hand, corresponding to the lead-out hole of the cable 701, one end of the cable 701 is fixedly electrically connected to the circuit board 30 and leads out from the lead-out hole. Furthermore, the stop area 90 is marked with nameplate information for displaying the charging power and / or model of the USB connector (such as Type-C). (45W) A limiting ring 90b is further provided near the stop area 90. The cable 701 passes through the limiting ring and positions the USB connector 702 in the limiting groove 802. When in use, the USB connector 702 can be pulled out and the cable 701 can be pulled. The cable 701 moves along the limiting ring 90b and can be pulled out of the data cable placement area 80 by a certain distance. When not in use, the USB connector 702 is positioned back in the limiting groove 802. The cable 701 forms a winding annular lifting strap 1000 between the stop area 90 and the limiting ring 90b. The user can lift the battery pack 100 through the winding annular lifting strap 1000.

[0108] In short, a limiting ring 90b (such as a ring-shaped protrusion or through hole) is set near the stop area 90. After the cable 701 passes through the limiting ring 90b, it forms a controllable movement path. When the USB connector 702 is pulled out, the cable 701 is pulled out in a straight line along the limiting ring 90b to avoid tangling. When storing, the USB connector 702 is inserted into the limiting groove 802, and the cable 701 naturally bends between the stop area 90 and the limiting ring 90b to form a ring-shaped lifting strap 1000. When the user needs to connect an external USB device (such as charging a mobile phone), the USB connector 702 is pulled out from the limiting groove 802, and the cable 701 is pulled to the required length. After use, the cable 701 is pushed back into the limiting groove 802, and the cable 701 bends. When the data cable is not in use, the bend of the cable 701 forms a flexible ring between the limiting ring 90b and the stop area 90. The user can lift the battery pack by pulling this ring, improving portability.

[0109] Specifically, the aforementioned connecting portion has a first annular groove 800 formed in the distribution area of ​​the first guide rail 330, the end hole group 310, and the second guide rail 340, and a stop area 90 and a limiting ring 90b are disposed in the non-connecting portion 500.

[0110] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A battery pack, comprising: Main body shell; At least one set of rechargeable battery units is disposed inside the main body housing; A circuit board is disposed within the main housing and is electrically connected to the rechargeable battery unit; The battery pack is characterized in that it has a first output interface and a plurality of second output interfaces, the first output interface being adapted to electrically connect to a power tool, and the second output interfaces being adapted to electrically connect to a 3C electronic device; The first output interface is a bidirectional PIN port, and at least one of the second output interfaces is a bidirectional USB-C port.

2. The battery pack according to claim 1, characterized in that, The main outer shell includes a protrusion and a base with a three-dimensional layered structure, wherein the protrusion extends outward from the outer surface of the base. The protrusion includes a top platform and a connecting portion extending from the inside of the top platform, the connecting portion being connected to the outer surface of the base.

3. The battery pack according to claim 1, characterized in that, The circuit board is equipped with a discharge terminal group, and the main body shell is provided with an end hole group corresponding to the discharge terminal group. The end hole group is configured as the first output interface, and the power receiving terminal group of the power tool is adapted to pass through the end hole group to achieve electrical connection with the discharge terminal group.

4. The battery pack according to claim 1, characterized in that, The first output interface and at least one second output interface are both disposed on the main body shell, and at least one second output interface is located at both ends of the main body shell relative to the first output interface.

5. The battery pack according to claim 2, characterized in that, The first output interface is disposed on the main body shell, and one of the second output interfaces is connected to the main body shell and electrically connected to the circuit board via a cable. The cable and one of the second output interfaces constitute a data line connected to the main body shell.

6. The battery pack according to claim 5, characterized in that, A guide rail area and a data cable placement area are formed between the top platform and the base. A stop area is provided between the guide rail area and the data cable placement area to make the guide rail area and the data cable placement area independent of each other. The guide rail area is adapted to guide the insertion of the battery pack relative to the power tool, and the data cable placement area is adapted to store the data cable.

7. The battery pack according to claim 6, characterized in that, The data cable placement area includes a groove for accommodating the cable and a limiting groove for limiting one of the second output interfaces.

8. The battery pack according to claim 7, characterized in that, A stop is provided at the junction of the guide rail area and the data cable placement area to limit the stroke of the battery pack when inserted into the power tool battery mounting part.

9. The battery pack according to claim 6, characterized in that, The data cable placement area includes a limiting groove for limiting one of the second output interfaces. A limiting ring is provided near the stop area. After the cable passes through the limiting ring, it forms a controllable movement path. The curved cable forms a flexible annular band between the limiting ring and the stop area, which serves as a handle for the battery pack.

10. The battery pack according to claim 8, characterized in that, The first output interface, guide rail area, stop part, wire groove and limiting groove are all arranged in the clamping area between the top platform and the base.

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