A battery pack interface protection structure and a method of using the same

Abstract

This invention provides a battery pack interface protection structure and its usage method, relating to the field of battery pack technology. The battery pack interface protection structure includes a charging interface, a dust cover, a positioning and holding component, and a linkage closing component. The dust cover has an open position for opening the charging interface and a closed position for closing the charging interface. The positioning and holding component positions the dust cover in the open position when it is in the open position and in the closed position when it is in the closed position. The linkage closing component allows the dust cover to slide from the open position to the closed position when the battery pack is assembled with a power tool, driven by the insertion end of the power tool. The positioning and holding component achieves bistable positioning of the dust cover in both the open and closed positions, solving the problem of traditional rubber covers having no fixed positioning location. Furthermore, the linkage closing component automatically completes the closure when the user forgets to close it, utilizing the assembly action of a power tool, thus achieving all-around protection.

Description

Technical Field

[0001] This invention relates to the field of battery pack technology, and more specifically, to a battery pack interface protection structure and its usage method. Background Technology

[0002] Currently, the charging ports added to the side walls of battery packs are mostly bidirectional, capable of receiving external power to replenish their own charge and also outputting power to mobile phones and other electronic devices. To prevent dust and moisture from entering the ports and affecting their electrical performance, dust covers are usually provided. In existing technology, these dust covers are generally made of rubber and are installed on the side of the charging port via a rotating hinge. During use, the user manually flips the rubber dust cover outward to expose the port. After charging or supplying power, the dust cover is then rotated back to close, thus providing physical protection for the port.

[0003] However, the aforementioned rotating rubber dust cover has at least the following problems in actual use: On the one hand, during charging or power supply operations, the opened rubber dust cover, due to its soft material and lack of a positioning structure, is prone to sticking to or pressing against the outside of the charging connector or power cable under the action of gravity or external force, interfering with the plugging operation and affecting the convenience of use; on the other hand, when the battery pack is attached to a power tool, if the dust cover is in the open state and the user forgets to close it, the charging interface will be exposed for a long time, posing safety hazards such as dust and water ingress. Summary of the Invention

[0004] The problem this invention addresses is how to avoid interference from the position of the dustproof plate and the exposure of the interface when the user forgets to close it.

[0005] To address the above problems, this invention provides a battery pack interface protection structure and its usage method.

[0006] In a first aspect, the present invention provides a battery pack interface protection structure, comprising:

[0007] The charging port is located on the battery pack;

[0008] A dustproof plate is movably mounted on the battery pack and has a degree of freedom of movement relative to the charging interface. The dustproof plate has an open position for opening the charging interface and a closed position for closing the charging interface.

[0009] A positioning and holding component is disposed between the battery pack and the dust cover, for positioning the dust cover in the open position when the dust cover is in the open position, and for positioning the dust cover in the closed position when the dust cover is in the closed position;

[0010] A linkage closing component is disposed at the end of the dustproof plate away from the charging interface. When the battery pack is attached to a power tool, the plug-in end of the power tool pushes the dustproof plate from the open position to the closed position.

[0011] Optionally, the dustproof plate is a sliding dustproof plate, and the battery pack is provided with a guide groove, in which the sliding dustproof plate is slidably installed.

[0012] Optionally, the positioning and holding assembly includes positioning buckles disposed on both sides of the dustproof plate, and a first positioning slot and a second positioning slot disposed on the groove walls on both sides of the guide slide, wherein the first positioning slot and the second positioning slot are arranged at intervals along the sliding direction of the dustproof plate;

[0013] When the dustproof plate is in the closed position, the positioning buckle engages with the first positioning slot;

[0014] When the dustproof plate is in the open position, the positioning buckle engages with the second positioning slot.

[0015] Optionally, elastic arms are provided on both sides of the dustproof plate, the elastic arms extend along the sliding direction of the dustproof plate, and the elastic arms have free ends away from the dustproof plate;

[0016] The positioning buckle is disposed at the free end of the elastic arm, and engages or disengages with the first positioning slot or the second positioning slot as the elastic arm elastically deforms.

[0017] Optionally, a deformation clearance is provided between the elastic arm and the main body of the dustproof plate, the deformation clearance being used to provide clearance space for the elastic deformation of the elastic arm.

[0018] Optionally, the battery pack is provided with a limiting groove communicating with the guide groove. The limiting groove extends along the sliding direction of the sliding dustproof plate, and the limiting groove has a first end and a second end that are arranged opposite to each other along the sliding direction.

[0019] The upper end of the sliding dustproof plate is provided with a pushing protrusion, which is slidably disposed in the limiting groove, and the upper end of the pushing protrusion protrudes out of the limiting groove.

[0020] When the pushing protrusion slides to abut against the first end, the sliding dustproof plate is in the closed position;

[0021] When the pushing protrusion slides to abut against the second end, the sliding dustproof plate is in the open position.

[0022] Optionally, the linkage closing assembly includes a pushing slope or a pushing protrusion disposed on the dustproof plate;

[0023] The plug end of the power tool directly contacts and pushes the push-up ramp or the push-up protrusion during the assembly process.

[0024] Optionally, the battery pack is provided with a positive terminal and a negative terminal that are electrically connected to the power tool, and the dustproof plate is disposed between the positive terminal and the negative terminal, and the sliding direction of the dustproof plate is parallel to the extending direction of the positive terminal or the negative terminal.

[0025] Optionally, when the battery pack is attached to the power tool and the dust cover is in the closed position, the plug end of the power tool remains against the outside of the guide groove to restrict the dust cover from moving from the closed position to the open position.

[0026] The beneficial effects of the battery pack interface protection structure of the present invention are as follows: the battery pack interface protection structure achieves comprehensive protection of the charging interface through the synergistic effect of the positioning and holding component and the linkage closing component. When the user manually pushes the dust cover, the dust cover slides between the closed and open positions. The positioning and holding component automatically positions the dust cover in the current position when it reaches the open or closed position, so that the dust cover will not automatically return to its original position due to gravity or external force and interfere with the insertion operation when it is open, and will not be accidentally opened due to vibration when it is closed. When the user forgets to manually close the dust cover after using the charging interface and directly assembles the battery pack into the power tool, the insertion end of the power tool will contact and push the linkage closing component located at the end of the dust cover away from the charging interface during the assembly process. The linkage closing component transmits the pushing force of the insertion end to the dust cover, thereby automatically driving the dust cover to slide from the open position to the closed position.

[0027] Compared to existing rotary rubber dust covers, this invention has the following advantages: Firstly, the positioning and holding components achieve bistable positioning of the dust cover in both open and closed positions. In the open position, the dust cover will not press against the charging connector or cable, ensuring smooth and convenient insertion. In the closed position, the dust cover will not loosen or accidentally open due to vibration from power tools, ensuring that the charging interface is always in a closed and protected state. Secondly, the linkage closing components achieve an automatic compensation function when the user forgets to close the dust cover. When the user forgets to manually close the dust cover and directly assembles the power tool, the dust cover will be automatically pushed to the closed position, avoiding dust and water ingress caused by long-term exposure of the charging interface without additional user operation. This comprehensively improves the operational convenience and protective reliability of the battery pack interface protection structure.

[0028] Secondly, the present invention provides a method of using a battery pack interface protection structure, applicable to the aforementioned battery pack interface protection structure, including a manual operation mode and an automatic linkage mode:

[0029] The manual operation mode includes: manually pushing the dustproof plate to slide it between the closed position and the open position, and positioning the dustproof plate in the closed position or the open position by the positioning and holding component;

[0030] The automatic linkage mode includes: when the dust cover is in the open position and the battery pack is attached to the power tool, the plug end of the power tool pushes the linkage closing component, thereby automatically driving the dust cover to slide from the open position to the closed position.

[0031] The beneficial effects of the battery pack interface protection structure of the present invention are as follows: the method of using the battery pack interface protection structure achieves comprehensive protection of the charging interface through the organic combination of manual operation mode and automatic linkage mode. In manual operation mode, the user manually pushes the dust cover to slide between the closed and open positions. When the dust cover reaches the closed or open position, the positioning and holding component automatically positions the dust cover in the current position, so that the dust cover will not automatically return to its original position due to gravity or external force in the open state, interfering with the insertion operation, and will not be accidentally opened due to vibration in the closed state. In automatic linkage mode, when the user forgets to manually close the dust cover after using the charging interface and directly assembles the battery pack into the power tool, the plug end of the power tool will directly push the linkage closing component during the assembly process, thereby automatically driving the dust cover to slide from the open position to the closed position, completing the interface closure without additional user operation. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of a dustproof panel in the open position according to one embodiment of the present invention.

[0033] Figure 2 This is a schematic diagram of the dustproof plate in a closed position according to one embodiment of the present invention;

[0034] Figure 3 A cross-sectional view of a dustproof panel in the open position according to one embodiment of the present invention;

[0035] Figure 4 A cross-sectional view of a dustproof panel in a closed position according to one embodiment of the present invention;

[0036] Figure 5 This is a schematic diagram of the structure of a dustproof plate according to one embodiment of the present invention.

[0037] Explanation of reference numerals in the attached figures:

[0038] 1. Battery pack; 2. Charging interface; 3. Dustproof plate; 31. Elastic arm; 32. Deformation clearance gap; 33. Push protrusion; 4. Positioning and holding assembly; 41. Positioning buckle; 42. First positioning slot; 43. Second positioning slot; 5. Linkage closing assembly; 6. Guide slide; 7. Limiting slide; 71. First end; 72. Second end; 8. Positive pin; 9. Negative pin; 10. C pin. Detailed Implementation

[0039] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Although some embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the present invention. It should be understood that the accompanying drawings and embodiments of the present invention are for illustrative purposes only and are not intended to limit the scope of protection of the present invention.

[0040] The term "comprising" and its variations as used herein are open-ended, meaning "including but not limited to"; the term "based on" means "at least partially based on"; the term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments"; and the term "optionally" means "optional embodiments". Definitions of other terms will be given in the following description. It should be noted that the concepts of "first," "second," etc., mentioned in this invention are used only to distinguish different devices, modules, or units, and are not intended to limit the order of functions performed by these devices, modules, or units or their interdependencies.

[0041] It should be noted that the terms "a" and "a plurality of" used in this invention are illustrative rather than restrictive. Those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0042] like Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, an embodiment of the present invention provides a battery pack interface protection structure, comprising:

[0043] Charging port 2 is located on battery pack 1;

[0044] The dustproof plate 3 is movably mounted on the battery pack 1 and has the freedom to move relative to the charging interface 2. The dustproof plate 3 has an open position for opening the charging interface 2 and a closed position for closing the charging interface 2.

[0045] Positioning and holding component 4 is disposed between battery pack 1 and dust cover 3, and is used to position dust cover 3 in the open position when dust cover 3 is in the open position, and to position dust cover 3 in the closed position when dust cover 3 is in the closed position.

[0046] The linkage closing component 5 is located at the end of the dustproof plate 3 away from the charging interface 2. When the battery pack 1 is assembled into the power tool, the plug end of the power tool pushes the dustproof plate 3 to slide from the open position to the closed position.

[0047] Specifically, the charging interface 2 is located on the battery pack 1 and has bidirectional functionality. On one hand, the charging interface 2 can serve as a power input terminal, receiving power from an external charger to replenish the battery pack 1's own power; on the other hand, the charging interface 2 can also serve as a power output terminal, outputting power in reverse to supply power to electronic devices such as mobile phones and tablets. The charging interface 2 has conductive terminals inside, used to form an electrical connection with a charging connector or the plug-in terminal of a power tool.

[0048] The dust cover 3 is movably mounted on the battery pack 1 and has a degree of freedom of movement relative to the charging interface 2. Specifically, the dust cover 3 can adopt a sliding structure, reciprocating between an open and closed position by sliding. When the dust cover 3 is in the closed position, it covers the charging interface 2, preventing dust, moisture, and other foreign objects from entering the interface; when the dust cover 3 is in the open position, it moves away from the charging interface 2, exposing the interface for the insertion of a charging connector or the plug end of a power tool. The degree of freedom of movement of the dust cover 3 can be achieved through structures such as guide grooves 6, guide rails, and hinges. Its movement is not limited to sliding; it can also employ other movement methods such as flipping and rotation.

[0049] The positioning and retaining component 4 is located between the battery pack 1 and the dust cover 3. Its core function is to achieve bistable positioning of the dust cover 3. Specifically, when the user manually pushes the dust cover 3 to the open position, the positioning and retaining component 4 automatically positions the dust cover 3 in the open position, keeping it stable and preventing it from automatically returning to its original position due to gravity, vibration, or external force. When the user manually pushes the dust cover 3 to the closed position, the positioning and retaining component 4 automatically positions the dust cover 3 in the closed position, keeping it stable and preventing it from accidentally opening due to vibration or external force. The positioning and retaining component 4 can be implemented in various ways, such as a mechanical engagement structure of a buckle and a slot, a magnetic attraction structure between magnetic components, an elastic positioning structure of an elastic arm 31 and a positioning recess, a damping hinge, or a ratchet mechanism.

[0050] The linkage closing component 5 is located at the end of the dustproof plate 3 furthest from the charging port 2, and its core function is to automatically close the dustproof plate 3. When the user forgets to manually close the dustproof plate 3 after using the charging port 2 (i.e., the dustproof plate 3 is in the open position) and directly assembles the battery pack 1 into the power tool, the plug end of the power tool will contact and push the linkage closing component 5 during the assembly process. The linkage closing component 5 transmits the thrust of the plug end to the dustproof plate 3, thereby automatically driving the dustproof plate 3 to slide from the open position to the closed position. The linkage closing component 5 can be implemented in various ways, such as by setting a pushing slope or pushing protrusion on the dustproof plate 3, with the plug end directly contacting and pushing the slope or protrusion; or by using indirect transmission methods such as lever transmission components or slider transmission components to transmit the thrust of the plug end to the dustproof plate 3.

[0051] In this embodiment, the battery pack 1 interface protection structure achieves comprehensive protection of the charging interface 2 through the coordinated action of the positioning and holding component 4 and the linkage closing component 5. When the user manually pushes the dust cover 3, the dust cover 3 slides between the closed and open positions. The positioning and holding component 4 automatically positions the dust cover 3 at the current position when it reaches the open or closed position, so that the dust cover 3 will not automatically return to its original position due to gravity or external force and interfere with the insertion operation when it is open, and will not be accidentally opened due to vibration when it is closed. When the user forgets to manually close the dust cover 3 after using the charging interface 2 and directly assembles the battery pack 1 into the power tool, the insertion end of the power tool will contact and push the linkage closing component 5 located at the end of the dust cover 3 away from the charging interface 2 during the assembly process. The linkage closing component 5 transmits the pushing force of the insertion end to the dust cover 3, thereby automatically driving the dust cover 3 to slide from the open position to the closed position.

[0052] Compared to existing rotary rubber dust covers, this invention offers several advantages. First, the positioning and holding component 4 achieves bistable positioning of the dust cover 3 in both open and closed positions. In the open position, the dust cover 3 will not press against the charging connector or cable, ensuring smooth and convenient insertion. In the closed position, the dust cover 3 will not loosen or accidentally open due to vibration from power tools, ensuring that the charging interface 2 is always in a closed and protected state. Second, the linkage closing component 5 provides automatic compensation when the user forgets to close the dust cover. When the user forgets to manually close the dust cover 3 and directly assembles the power tool, the dust cover 3 will be automatically pushed to the closed position, preventing dust and water ingress caused by long-term exposure of the charging interface 2 without additional user intervention. This comprehensively improves the operational convenience and protective reliability of the battery pack 1 interface protection structure.

[0053] Optionally, such as Figure 3 , Figure 4 As shown, the dustproof plate 3 is a sliding dustproof plate, and the battery pack 1 is provided with a guide groove 6, in which the sliding dustproof plate is slidably installed.

[0054] Specifically, the sliding dust cover is a structure that uses a linear sliding mechanism to open and close the dust cover 3. Unlike traditional rotating rubber dust covers, the sliding dust cover does not rotate around a hinge axis, but slides back and forth on the surface of the battery pack 1 in a straight line. The sliding dust cover is usually made of a rigid material (such as plastic or metal), has good shape retention, and will not deform due to its soft material. The sliding direction of the sliding dust cover can be designed according to the structural layout of the battery pack 1, for example, sliding along the length direction of the battery pack 1, sliding along the width direction, or sliding in a direction parallel to the extension direction of the positive and negative leads. The surface of the sliding dust cover can be provided with anti-slip textures or push protrusions 33 to facilitate the user to apply push force with their fingers.

[0055] A guide groove 6 is disposed on the battery pack 1 and is a guide structure used to guide the sliding dustproof plate 3 along a predetermined trajectory. The guide groove 6 is typically a long, narrow groove whose extension direction is consistent with the sliding direction of the sliding dustproof plate 3. The guide groove 6 has two side walls and a bottom. The side walls limit the lateral displacement of the dustproof plate 3 during sliding, ensuring that the dustproof plate 3 always moves in a straight line. The length of the guide groove 6 should be at least greater than or equal to the sliding stroke of the dustproof plate 3 to ensure that the dustproof plate 3 can slide completely between the open and closed positions. The guide groove 6 can be integrally formed with the housing of the battery pack 1, for example, directly formed onto the housing of the battery pack 1 through injection molding, without additional installation steps.

[0056] The sliding dustproof plate 3 is slidably installed within the guide groove 6, forming a sliding fit. Specifically, at least a portion of the dustproof plate 3 is accommodated in the guide groove 6 and can slide freely along the extension direction of the guide groove 6. Various fit methods can be used between the dustproof plate 3 and the guide groove 6: one method is that the two side edges of the dustproof plate 3 are directly inserted into the guide groove 6, with the main body of the dustproof plate 3 located above the guide groove 6; another method is that the dustproof plate 3 is entirely embedded in the guide groove 6, with the upper surface of the dustproof plate 3 basically flush with the surface of the battery pack 1; yet another method is that a slider is provided at the bottom of the dustproof plate 3, the slider is accommodated in the guide groove 6, and the main body of the dustproof plate 3 is located above the guide groove 6. To ensure smooth sliding, a lubrication structure or a low-friction coefficient material can be used between the dustproof plate 3 and the guide groove 6.

[0057] In this optional embodiment, the sliding dustproof plate achieves precise linear reciprocating motion guided by the guide groove 6. When the user manually pushes the sliding dustproof plate, the dustproof plate 3 slides smoothly along the extension direction of the guide groove 6. The two side walls of the guide groove 6 restrict the lateral displacement of the dustproof plate 3, ensuring that the dustproof plate 3 always moves along a predetermined trajectory. When the dustproof plate 3 slides to the open position, the positioning and holding component 4 (such as a buckle and a slot) locks the dustproof plate 3 in this position. At this time, the dustproof plate 3 leaves the charging interface 2, exposing the interface for insertion. When the dustproof plate 3 slides to the closed position, the positioning and holding component 4 locks the dustproof plate 3 in this position again. At this time, the dustproof plate 3 covers the charging interface 2, achieving protection. In the automatic linkage mode, the plug-in end of the power tool pushes the linkage closing component 5, and the dustproof plate 3 automatically slides from the open position to the closed position along the guide groove 6 under the action of the thrust. The guide groove 6 ensures the smoothness of movement and the accuracy of position during the automatic sliding process.

[0058] Sliding motion is smoother than flipping motion and less affected by gravity. Furthermore, the guide groove 6 provides a precise movement trajectory, ensuring the dust cover 3 accurately reaches the open and closed positions each time. The sliding dust cover remains in contact with the surface of the battery pack 1 during opening and closing, eliminating the need for outward flipping and occupying extra space, which is beneficial for the miniaturization of the battery pack 1 and its use in confined spaces. In addition, the sliding structure facilitates the integration of the positioning and holding component 4 and the linkage closing component 5. For example, positioning buckles 41 can be set on both sides of the dust cover and engage with the slots on the guide groove 6 wall, resulting in a compact structure and high reliability.

[0059] Optionally, such as Figure 3 , Figure 4 As shown, the positioning and holding assembly 4 includes positioning buckles 41 disposed on both sides of the dustproof plate 3, and a first positioning slot 42 and a second positioning slot 43 disposed on the groove walls on both sides of the guide slide 6. The first positioning slot 42 and the second positioning slot 43 are arranged at intervals along the sliding direction of the dustproof plate 3.

[0060] When the dustproof plate 3 is in the closed position, the positioning buckle 41 engages with the first positioning slot 42;

[0061] When the dust cover 3 is in the open position, the positioning buckle 41 engages with the second positioning slot 43.

[0062] Specifically, the positioning buckle 41 is a protruding structure set on the left and right sides of the dustproof plate 3 (i.e. the two sides perpendicular to the sliding direction) to ensure the force balance during positioning, and has a certain elasticity or rigidity, which can generate lateral displacement within a small range. The side facing the guide groove 6 is designed as a slope or arc surface to facilitate sliding into and out of the slot.

[0063] The positioning slots are two independent recesses or through slots opened on both sides of the guide slide 6 along its length. The first positioning slot 42 and the second positioning slot 43 are arranged at intervals along the sliding direction of the dustproof plate 3. The first positioning slot 42 is in the closed position on the sliding track. When the buckle falls into this slot, the dustproof plate 3 just covers the charging interface 2. The second positioning slot 43 is in the open position on the sliding track. When the buckle falls into this slot, the dustproof plate 3 just fully exposes the charging interface 2.

[0064] The inner wall shape of the slot matches the protruding shape of the buckle. After the buckle enters the slot, it forms interference or engagement, thereby generating a positioning force.

[0065] When the dust cover 3 is pushed to the closed position, the positioning buckle 41, under the action of elastic force or its own structure, pops into or locks into the first positioning slot 42, making a "click" sound and providing a sense of resistance, clearly informing the user that it is in place, and locking the dust cover 3 in the closed state.

[0066] When the dust cover 3 is pushed to the open position, the positioning buckle 41 pops into or locks into the second positioning slot 43, providing a clear feel and positioning force to keep the dust cover 3 stably in the open position so that it will not fall back and block the charging port.

[0067] The user manually pushes the dust cover 3, causing it to slide from the closed position to the open position (or vice versa) within the guide groove 6. As the dust cover 3 moves, the positioning latches 41 on both sides must first disengage from their current slots (e.g., the first positioning slot 42). Due to interference between the latches and the slots, the edges of the dust cover 3 undergo slight inward elastic deformation, temporarily releasing the positioning latches 41 from the slots. As the dust cover 3 continues to slide, the heads of the positioning latches 41 remain pressed against the smooth wall of the guide groove 6, under pressure and deformation, while sliding along the groove wall. When the dust cover 3 slides to the other end (e.g., the open position), the positioning latches 41 move directly above the second positioning slot 43. At this point, the edges of the dust cover 3 release elastic potential energy, generating a rebound force that forcefully pushes the positioning latches 41 into the second positioning slot 43.

[0068] The buckle and the slot physically engage, creating significant positional resistance. At this point, unless the user applies a sufficiently large reverse thrust to overcome the buckle's disengagement force, the dust cover 3 will be firmly locked in its current position, preventing it from sliding down due to gravity or shifting due to tool vibration.

[0069] In this optional embodiment, a crisp "click" sound and a tactile feedback are emitted when the buckle slides into the slot. This mechanical feedback intuitively informs the user that the buckle is in place, solving the operational ambiguity problem of the existing rubber cover's "hanging" design. Moreover, through the "buckle-slot" interlock, the dust cover 3 can resist the strong vibrations during power tool operation when closed (it will not be shaken open); and can resist the external force from the charging cable pulling when open (it will not automatically spring back), greatly improving the reliability of protection and achieving true bistable operation.

[0070] Optionally, such as Figure 3 , Figure 4 , Figure 5 As shown, elastic arms 31 are provided on both sides of the dustproof plate 3. The elastic arms 31 extend along the sliding direction of the dustproof plate 3, and the elastic arms 31 have free ends away from the dustproof plate 3.

[0071] The positioning buckle 41 is located at the free end of the elastic arm 31, and engages or disengages with the first positioning slot 42 or the second positioning slot 43 as the elastic arm 31 deforms elastically.

[0072] Specifically, on both sides of the dustproof plate 3, there are elastic arms 31 extending along the sliding direction of the dustproof plate 3. The elastic arm 31 is a cantilever beam structure extending from the side of the main body of the dustproof plate 3. One end of the arm is connected to the main body of the dustproof plate 3 (fixed end), and the other end is a free end away from the dustproof plate 3.

[0073] The positioning buckle 41 is not directly and rigidly connected to the main body of the dustproof plate 3, but is set at the free end of the elastic arm 31. The elastic arm 31 has a certain elastic deformation capability. When the positioning buckle 41 is subjected to external force, the elastic arm 31 can produce elastic bending deformation towards the inside of the dustproof plate 3, thereby causing the positioning buckle 41 to disengage from the slot; when the external force disappears, the elastic arm 31 returns to its original position by its own elastic restoring force, causing the positioning buckle 41 to re-engage into the slot.

[0074] When the user manually pushes the dust cover 3 or the plug-in end of the power tool pushes the linkage closing component 5, the positioning buckle 41 contacts the inclined wall of the slot during the sliding process and is subjected to a lateral thrust. This thrust is transmitted to the elastic arm 31, causing it to elastically bend and deform inward towards the dust cover 3, thereby driving the positioning buckle 41 to disengage outward from the first positioning slot 42 or the second positioning slot 43, releasing the locked state and allowing the dust cover 3 to continue sliding. When the dust cover 3 slides to the other end (open position or closed position) and the positioning buckle 41 moves to the corresponding slot position, the elastic deformation energy accumulated on the elastic arm 31 is released instantaneously, and the elastic arm 31 elastically resets outward, causing the positioning buckle 41 to automatically spring into the first positioning slot 42 or the second positioning slot 43, realizing the locking. During this process, the elastic arm 31 plays the role of "elastic energy storage-instant release", making the locking action crisp and clean and providing a clear sense of being in place.

[0075] In this optional embodiment, the elastic arm 31 provides the necessary elastic displacement capability for the positioning buckle 41, enabling the positioning buckle 41 to reliably switch between engaged and disengaged states. This avoids the jamming or wear problems caused by rigid buckles that cannot deform, ensuring smooth operation and reliable positioning of the dustproof plate 3 during long-term repeated sliding. Furthermore, the elastic restoring force of the elastic arm 31 allows the positioning buckle 41 to automatically spring into place upon reaching the slot position, producing a crisp "click" sound and a clear tactile feedback, providing clear positional feedback to the user and enhancing the human-machine interaction experience. In addition, the elastic arm 31 and the main body of the dustproof plate 3 can be integrally injection molded, achieving the elastic positioning function without adding extra parts. This results in a simple structure, low cost, and easy assembly.

[0076] Optionally, such as Figure 3 , Figure 4 , Figure 5 As shown, a deformation clearance 32 is provided between the elastic arm 31 and the main body of the dustproof plate 3. The deformation clearance 32 is used to provide clearance space for the elastic deformation of the elastic arm 31.

[0077] Specifically, the elastic arm 31 is a cantilever structure extending from the side of the dustproof plate 3 body. The elastic arm 31 and the dustproof plate 3 body are not completely fitted or have zero gap, but a narrow gap is reserved, which is the deformation clearance gap 32. This gap is provided throughout the extension direction of the elastic arm 31, and its width is set according to the maximum deformation required by the elastic arm 31, usually slightly larger than the maximum displacement of the elastic arm 31 bending inward in the working state.

[0078] The presence of the deformation clearance 32 ensures that at least the inner surface of the elastic arm 31 (the side facing the dustproof plate 3 body) remains in a non-contact state with the dustproof plate 3 body, thus providing physical space for the elastic bending deformation of the elastic arm 31. One end of the deformation clearance 32 can extend to the root of the elastic arm 31 (the connection point with the dustproof plate 3 body), and the other end can extend to the vicinity of the free end of the elastic arm 31, ensuring that the elastic arm 31 has sufficient deformation space along its entire length. This clearance can be formed by directly setting the mold cavity during injection molding, or by secondary processing of the molded product.

[0079] When the positioning buckle 41 is subjected to an external force (for example, being pushed by the groove wall during the sliding of the dustproof plate 3), the external force is transmitted to the elastic arm 31, causing it to undergo elastic bending deformation towards the inside of the dustproof plate 3. At this time, the side of the elastic arm 31 facing the main body of the dustproof plate 3 needs to move a certain distance inward. The deformation clearance gap 32 provides the space required for this movement, so that the elastic arm 31 can bend freely inward without contacting, colliding or interfering with the main body of the dustproof plate 3.

[0080] When the external force disappears, the elastic arm 31 returns to its original position by its own elastic restoring force. The deformation clearance 32 also provides space for the reset movement, ensuring that the elastic arm 31 can fully return to its initial position without being stuck by the dustproof plate 3 body.

[0081] Throughout the elastic deformation process, the deformation clearance 32 plays a role in "movement avoidance", enabling the elastic arm 31 to complete free reciprocating deformation movement within its elastic limit range, without being unable to deform due to space constraints or consuming energy due to friction with the main body.

[0082] In this optional embodiment, the deformation clearance 32 ensures that the elastic arm 31 can generate sufficient and free elastic deformation when subjected to external force, avoiding the problem of the elastic arm 31 and the dustproof plate 3 body being squeezed, rubbed or even jammed due to insufficient deformation space, thereby ensuring that the positioning buckle 41 can reliably disengage from the slot and smoothly re-engage, making the sliding operation of the dustproof plate 3 always easy and smooth.

[0083] On the other hand, the deformation clearance 32 prevents the elastic arm 31 from rigidly colliding or rubbing against the dustproof plate 3 body during the deformation process, reduces the wear and energy loss of the elastic arm 31, extends the service life of the elastic arm 31, and enables the positioning and holding assembly 4 to maintain good elastic performance and positioning accuracy after long-term repeated use.

[0084] Optionally, such as Figure 1 , Figure 2As shown, the battery pack 1 is provided with a limiting slide groove 7 that communicates with the guide slide groove 6. The limiting slide groove 7 extends along the sliding direction of the sliding dustproof plate, and the limiting slide groove 7 has a first end 71 and a second end 72 that are arranged opposite to each other along the sliding direction.

[0085] The upper end of the sliding dustproof plate is provided with a pushing protrusion 33, which is slidably disposed in the limiting slide groove 7, and the upper end of the pushing protrusion 33 protrudes out of the limiting slide groove 7.

[0086] When the protrusion 33 is pushed to slide until it abuts against the first end 71, the sliding dustproof plate is in the closed position;

[0087] When the protrusion 33 is pushed to slide until it abuts against the second end 72, the sliding dustproof plate is in the open position.

[0088] Specifically, the battery pack 1 is provided with a limiting groove 7 that is connected to the guide groove 6. The limiting groove 7 extends along the sliding direction of the sliding dustproof plate, and its length direction is consistent with the sliding trajectory of the dustproof plate 3. The limiting groove 7 has a first end 71 and a second end 72 that are arranged opposite to each other along the sliding direction. These two ends constitute the two end stop positions of the sliding stroke of the dustproof plate 3.

[0089] The upper end of the sliding dustproof plate (i.e., the side facing the outside of the battery pack 1 and accessible to the user's fingers) is provided with a pushing protrusion 33. This pushing protrusion 33 protrudes upward from the upper surface of the dustproof plate 3 and is slidably disposed within the limiting groove 7. The upper end of the pushing protrusion 33 protrudes beyond the upper surface of the limiting groove 7, meaning the top of the pushing protrusion 33 is higher than the opening edge of the limiting groove 7, allowing the user to directly touch and push the pushing protrusion 33 with their fingers. The width of the limiting groove 7 matches the width of the pushing protrusion 33 to ensure that the pushing protrusion 33 can slide smoothly within the limiting groove 7 without lateral wobbling.

[0090] When the user pushes the push protrusion 33 protruding above the limiting slide groove 7 with their finger, the push protrusion 33 drives the entire sliding dustproof plate to slide along the extension direction of the guide slide groove 6 and the limiting slide groove 7. During the sliding process, the push protrusion 33 is always constrained within the limiting slide groove 7. The two side walls of the limiting slide groove 7 restrict the lateral displacement of the push protrusion 33, thereby ensuring that the dustproof plate 3 moves in a straight line.

[0091] When the user pushes the protrusion 33 to its limit position to one side, the side wall of the protrusion 33 mechanically abuts against the first end 71 (or the second end 72) of the limiting groove 7. Since the end of the limiting groove 7 is a closed structure, the protrusion 33 cannot move forward any further. At this time, the dustproof plate 3 is precisely stopped in the closed position (or open position), and the positioning and holding assembly 4 then locks the dustproof plate 3 in this position. Conversely, when the user pushes the protrusion 33 in the opposite direction until the protrusion 33 abuts against the other end of the limiting groove 7, the dustproof plate 3 is precisely stopped in the open position (or closed position). Throughout the sliding process, the protrusion 33 serves as both the direct point of application of force by the user and as a position indicator and end limiter of the sliding stroke of the dustproof plate 3.

[0092] In this optional embodiment, the mechanical contact between the two ends of the limiting slide groove 7 and the pushing protrusion 33 provides a clear end point for the sliding stroke of the dustproof plate 3, so that the user can clearly perceive that the dustproof plate 3 has reached the open or closed position through the tactile feeling of "not being able to be pushed" during the pushing process. This avoids the problem of damaging the dustproof plate 3 or the positioning and holding component 4 due to excessive pushing, while ensuring that the dustproof plate 3 can accurately stop at the preset position each time, so that the positioning and holding component 4 can reliably complete the locking.

[0093] Moreover, the sliding engagement between the protrusion 33 and the limiting groove 7 plays an auxiliary guiding role, forming a double guiding structure together with the guide groove 6, which further improves the smoothness and straightness of the dustproof plate 3's sliding and reduces the shaking or jamming of the dustproof plate 3 during the sliding process.

[0094] Optionally, such as Figure 3 , Figure 4 As shown, the linkage closing component 5 includes a pushing slope or a pushing protrusion disposed on the dustproof plate 3;

[0095] The plug end of the power tool directly contacts and pushes the push-up bevel or push-up protrusion during the assembly process.

[0096] Specifically, the push-up slope or push-up protrusion is located at the end of the dustproof plate 3 away from the charging interface 2 (i.e., the side of the dustproof plate 3 that is close to the power tool plug-in end when it is in the open state).

[0097] The jacking ramp is a plane that is inclined relative to the sliding direction of the dustproof plate 3. Its inclination angle is usually designed to be between 30° and 60°. The ramp opens towards the plug end of the power tool, so that when the plug end contacts, it can slide along the ramp and decompose the horizontal thrust into a component force that drives the dustproof plate 3 to slide.

[0098] The push-up protrusion is a block-shaped structure that protrudes outward from the end of the dustproof plate 3. The side facing the plug end of the power tool can be set as a slope or a curved surface, which also serves as a guide and push force transmission.

[0099] When the battery pack 1 is assembled to the power tool, the plug end of the power tool moves towards the charging interface 2 along the assembly direction (usually parallel to or at a certain angle to the sliding direction of the dust cover 3). During the movement, the plug end first contacts the push-up slope or push-up protrusion set at the end of the dust cover 3.

[0100] In this optional embodiment, a direct contact and pushing transmission relationship is formed between the pushing inclined surface or pushing protrusion and the plug-in end of the power tool. The force transmission path is the shortest and the energy loss is the smallest. The pushing force of the plug-in end can be efficiently transmitted to the dustproof plate 3, ensuring that the dustproof plate 3 can be reliably pushed to the closed position at various assembly speeds, and there will be no closing failure due to transmission delay or slippage.

[0101] Optionally, such as Figure 1 , Figure 2 As shown, the battery pack 1 is provided with a positive terminal 8 and a negative terminal 9 that are electrically connected to the power tool. The dustproof plate 3 is disposed between the positive terminal 8 and the negative terminal 9, and the sliding direction of the dustproof plate 3 is parallel to the extension direction of the positive terminal 8 or the negative terminal 9.

[0102] Specifically, the battery pack 1 has a positive pin 8 and a negative pin 9 that are electrically connected to the power tool. These two pins are the key interfaces for power transmission between the battery pack 1 and the power tool, used to deliver the electrical energy stored in the battery pack 1 to the power tool to drive its operation. In addition, the battery pack 1 also has a C pin 10 (communication pin or detection pin). The C pin 10, in conjunction with the negative pin 9, can also be used to charge the battery pack 1. That is, in charging mode, the corresponding terminals of the external charger are connected to the C pin 10 and the negative pin 9 to realize the charging management of the internal cells of the battery pack 1.

[0103] Positive pin 8, negative pin 9, and C pin 10 are arranged side by side, extending outward from the same side of battery pack 1, with the extension directions of the three pins parallel to each other. A dust cover 3 is positioned in the area between positive pin 8 and negative pin 9. This area is typically the empty space between positive pin 8 and negative pin 9; placing the dust cover 3 here fully utilizes the existing space on battery pack 1 without increasing its width or length. The sliding direction of the dust cover 3 is parallel to the extension direction of either positive pin 8 or negative pin 9, i.e., the dust cover 3 slides back and forth along the length of the pin. This direction is consistent with the insertion direction of the power tool connector, allowing the connector to naturally contact and push the linkage closing component 5 at the end of the dust cover 3 during insertion. During sliding, the dust cover 3 remains within the channel between positive pin 8 and negative pin 9, preventing contact or interference with the pins on either side, ensuring a safe and reliable electrical connection.

[0104] When the battery pack 1 is not installed on the power tool, the dust cover 3 slides in the area between the positive pin 8 and the negative pin 9. The user can move the dust cover 3 between the open and closed positions by pushing the push protrusion 33 on the dust cover 3 to expose or cover the charging interface 2 located near the pin.

[0105] When the user assembles the battery pack 1 into the power tool, the plug end of the power tool is inserted into the battery pack 1 along the pin extension direction (i.e. the sliding direction of the dust cover 3). Since the sliding direction of the dust cover 3 is parallel to the movement direction of the plug end and the dust cover 3 is located between the two pins, the plug end can accurately align with the linkage closing component 5 (push-up slope or push-up protrusion) at the end of the dust cover 3 during the insertion process. As the plug end continues to move forward, the direction of the thrust applied to the linkage closing component 5 is completely consistent with the sliding direction of the dust cover 3. The thrust is almost entirely converted into an effective force to drive the dust cover 3 to slide, thereby efficiently pushing the dust cover 3 from the open position to the closed position.

[0106] In this optional embodiment, the dustproof plate 3 is arranged in the empty area between the positive electrode pin 8 and the negative electrode pin 9, without the need to open up additional dedicated space on the battery pack 1. This helps to maintain the miniaturization and compactness of the overall structure of the battery pack 1. At the same time, the dustproof plate 3 is constrained by the pins on both sides during the sliding process. The pins play an auxiliary guiding and anti-sway role, which improves the straightness and stability of the sliding of the dustproof plate 3.

[0107] Furthermore, the sliding direction of the dustproof plate 3 is parallel to the extension direction of the pin, so that the movement direction of the power tool plug-in end is completely consistent with the sliding direction of the dustproof plate 3. The thrust applied by the plug-in end to the linkage closing assembly 5 can be transmitted to the dustproof plate 3 with minimal energy loss, which greatly improves the transmission efficiency and reliability of the linkage closing mechanism. At the same time, the plug-in end can move naturally along the extension direction of the pin during the insertion process, and can push the dustproof plate 3 without changing the movement trajectory, thus achieving a seamless connection of "assembly and closure".

[0108] Optionally, when the battery pack 1 is assembled to the power tool and the dust cover 3 is in the closed position, the plug end of the power tool remains against the outside of the guide groove 6 to restrict the movement of the dust cover 3 from the closed position to the open position.

[0109] Specifically, when the user properly assembles the battery pack 1 into the power tool and the dust cover 3 is in the closed position (i.e., the dust cover 3 covers the charging interface 2), the plug end of the power tool does not simply form an electrical connection with the conductive terminals inside the charging interface 2. Instead, a part of the plug end (which may be the root, side wall, boss, or other structural part of the plug end) remains against the outside of the guide groove 6. This abutment relationship is a continuous physical contact, and the plug end acts like a "stop" or "block," closely attached to the outside of the guide groove 6.

[0110] When the dustproof plate 3 is in the closed position, a portion of it (e.g., the end or sidewall of the dustproof plate 3) is located inside or adjacent to the guide groove 6. Since the plug-in end abuts against the outside of the guide groove 6, and the dustproof plate 3 is located inside the guide groove 6 or linked with the guide groove 6, the physical presence of the plug-in end provides support or obstruction to the guide groove 6.

[0111] When a power tool generates high-frequency vibrations during use, this abutting relationship causes the guide slide 6 and the mating dust plate 3 to be subject to a reverse restraining force from the insertion end. Specifically, if the dust plate 3 tends to move from the closed position to the open position (for example, sliding outward along the guide slide 6 due to vibration), the movement of the dust plate 3 will be transmitted through the guide slide 6 to the position where the insertion end abuts. Since the position of the insertion end is fixed by the assembly structure of the power tool, it cannot move with the dust plate 3, thereby preventing the sliding tendency of the dust plate 3 and achieving mechanical movement restriction.

[0112] In this optional embodiment, the inherent position of the plug end in the assembled state of the power tool forms a mechanical block against the dust cover 3. The dust cover 3 can be anti-vibration locked during the use of the power tool without adding any additional parts (such as additional latches, springs, pins, etc.), which greatly improves the reliability of protection while maintaining a simple structure and low cost.

[0113] This invention provides a method for using a battery pack interface protection structure, applicable to the aforementioned battery pack interface protection structure, including a manual operation mode and an automatic linkage mode:

[0114] The manual operation mode includes: manually pushing the dust cover 3 to slide it between the closed position and the open position, and positioning the dust cover 3 in the closed position or the open position by the positioning and holding component 4;

[0115] The automatic linkage mode includes: when the dust cover 3 is in the open position and the battery pack 1 is installed on the power tool, the plug end of the power tool pushes the linkage closing component 5, thereby automatically driving the dust cover 3 to slide from the open position to the closed position.

[0116] Specifically, the manual operation mode is the basic mode of user-initiated operation. The steps include: the user touches the dust cover 3 (or the pushing protrusion 33 on it) with their finger and applies a pushing force to drive the dust cover 3 to slide back and forth between the closed position and the open position along the guide groove 6. When the dust cover 3 slides to the closed position or the open position, the positioning and holding component 4 automatically acts (for example, the positioning buckle 41 springs into the corresponding slot under the action of the elastic arm 31) to mechanically lock the dust cover 3 in the current position, so that the dust cover 3 remains unchanged in the same position after the user releases the pushing force.

[0117] The automatic linkage mode is a compensation mode when the user forgets to close the charging port 2. The triggering condition is that the dust cover 3 is currently in the open position (i.e., the user forgets to push the charging port 2 back to the closed position after using it) and the user directly assembles the battery pack 1 into the power tool. In this case, the plug end of the power tool will first contact and push the linkage closing component 5 (such as the push slope or push protrusion) set at the end of the dust cover 3 during the assembly and movement. The linkage closing component 5 transmits the pushing force of the plug end to the dust cover 3, thereby automatically driving the dust cover 3 to slide from the open position along the guide groove 6 to the closed position. Then the plug end continues to move and forms an electrical connection with the conductive terminal in the charging port 2.

[0118] These two modes are not mutually exclusive, but form a complete closed loop of use: the manual operation mode covers the scenarios where the user actively opens and closes the charging port, while the automatic linkage mode covers the scenarios where the user forgets to close the charging port. Together, they ensure that the charging port 2 can be effectively protected under any circumstances.

[0119] In this optional embodiment, the manual operation mode and the automatic linkage mode coexist and work together in the same protective structure, covering two completely different usage scenarios: user active operation and user negligence. This forms an all-round, all-weather protection for the charging interface 2. No matter what the user's operating habits are or whether they forget about it, the charging interface 2 can maintain a reliable closed state, which significantly improves the intelligence level and user experience of the battery pack 1 product.

[0120] While the present invention has been disclosed above, its scope of protection is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and all such changes and modifications will fall within the scope of protection of the present invention.

Claims

1. A battery pack interface protection structure, characterized in that, include: A charging port (2) is provided on the battery pack (1); The dustproof plate (3) is movably mounted on the battery pack (1) and has a degree of freedom to move relative to the charging interface (2). The dustproof plate (3) has an open position for opening the charging interface (2) and a closed position for closing the charging interface (2). A positioning and holding component (4) is disposed between the battery pack (1) and the dustproof plate (3) for positioning the dustproof plate (3) in the open position when the dustproof plate (3) is in the open position, and for positioning the dustproof plate (3) in the closed position when the dustproof plate (3) is in the closed position. The linkage closing component (5) is located at the end of the dustproof plate (3) away from the charging interface (2), and is used to push the dustproof plate (3) from the open position to the closed position by the plug end of the power tool when the battery pack (1) is assembled to the power tool; The battery pack (1) is provided with a guide groove (6); The positioning and holding assembly (4) includes positioning buckles (41) disposed on both sides of the dustproof plate (3), and a first positioning slot (42) and a second positioning slot (43) disposed on both sides of the guide slide (6). The first positioning slot (42) and the second positioning slot (43) are arranged at intervals along the sliding direction of the dustproof plate (3). When the dustproof plate (3) is in the closed position, the positioning buckle (41) engages with the first positioning slot (42); When the dustproof plate (3) is in the open position, the positioning buckle (41) engages with the second positioning slot (43); The dustproof plate (3) is provided with elastic arms (31) on both sides. The elastic arms (31) extend along the sliding direction of the dustproof plate (3) and have free ends away from the dustproof plate (3). The positioning buckle (41) is disposed at the free end of the elastic arm (31), and engages or disengages with the first positioning slot (42) or the second positioning slot (43) as the elastic arm (31) deforms elastically. The linkage closing component (5) includes a pushing slope or pushing protrusion disposed on the dustproof plate (3); The plug end of the power tool directly contacts and pushes the push-up ramp or the push-up protrusion during the assembly process.

2. The battery pack interface protection structure according to claim 1, characterized in that, The dustproof plate (3) is a sliding dustproof plate, which is slidably installed in the guide groove (6).

3. The battery pack interface protection structure according to claim 1, characterized in that, A deformation clearance gap (32) is provided between the elastic arm (31) and the main body of the dustproof plate (3), and the deformation clearance gap (32) is used to provide clearance space for the elastic deformation of the elastic arm (31).

4. The battery pack interface protection structure according to claim 2, characterized in that, The battery pack (1) is provided with a limiting groove (7) that communicates with the guide groove (6). The limiting groove (7) extends along the sliding direction of the sliding dustproof plate, and the limiting groove (7) has a first end (71) and a second end (72) that are arranged opposite to each other along the sliding direction. The upper end of the sliding dustproof plate is provided with a pushing protrusion (33), the pushing protrusion (33) is slidably disposed in the limiting slide groove (7), and the upper end of the pushing protrusion (33) protrudes out of the limiting slide groove (7); When the pushing protrusion (33) slides to abut against the first end (71), the sliding dustproof plate is in the closed position; When the pushing protrusion (33) slides to abut against the second end (72), the sliding dustproof plate is in the open position.

5. The battery pack interface protection structure according to claim 1, characterized in that, The battery pack (1) is provided with a positive terminal pin (8) and a negative terminal pin (9) that are electrically connected to the power tool. The dustproof plate (3) is disposed between the positive terminal pin (8) and the negative terminal pin (9), and the sliding direction of the dustproof plate (3) is parallel to the extension direction of the positive terminal pin (8) or the negative terminal pin (9).

6. The battery pack interface protection structure according to claim 2, characterized in that, When the battery pack (1) is assembled to the power tool and the dust cover (3) is in the closed position, the plug end of the power tool remains against the outside of the guide groove (6) to restrict the dust cover (3) from moving from the closed position to the open position.

7. A method of using a battery pack interface protection structure, applied to the battery pack interface protection structure according to any one of claims 1 to 6, characterized in that, Includes manual operation mode and automatic linkage mode: The manual operation mode includes: manually pushing the dustproof plate (3) to slide it between the closed position and the open position, and positioning the dustproof plate (3) in the closed position or the open position by the positioning and holding component (4); The automatic linkage mode includes: when the dust cover (3) is in the open position and the battery pack (1) is assembled to the power tool, the plug end of the power tool pushes the linkage closing component (5), thereby automatically driving the dust cover (3) to slide from the open position to the closed position.

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