A structurally stable quick-release battery pack for vacuum cleaners and a vacuum cleaner.

Abstract

This application relates to a structurally stable quick-release battery pack for a vacuum cleaner and the vacuum cleaner itself. In normal use, the limiting part extends into the latch and abuts against the stop surface of the latch, thereby restricting the relative sliding between the main unit and the battery pack and achieving a secure lock. When the battery pack needs to be removed, the user presses the exposed pressing part along the direction in which the limiting part extends into the latch. The pressing force is directly transmitted to the limiting part through the one-piece molded structure, causing it to disengage from the latch and releasing the sliding restriction. At this point, the user can smoothly pull the battery pack out of the main unit along the sliding direction. During installation, the user simply pushes the battery pack into the main unit along the sliding direction. The limiting part is temporarily retracted during assembly due to the pressure of the latch structure, and returns to the latch after reaching its final position, completing the lock. The entire process requires no tools, and the operation is quick and fluid. The lock is released by the pressing part driving the limiting part out of the latch, significantly improving operational efficiency and facilitating daily battery pack replacement or maintenance.

Description

Technical Field

[0001] This application relates to battery packs, and more particularly to a structurally stable quick-release battery pack for a vacuum cleaner and a vacuum cleaner. Background Technology

[0002] Vacuum cleaners typically consist of a main unit and a battery pack. The battery pack powers the main unit, enabling it to clean floors.

[0003] There are two existing methods for assembling vacuum cleaner battery packs. One method is to fix the upper and lower shells with screws. However, this method requires creating space for screw installation on the battery pack shell, which reduces the effective volume inside the battery pack. Furthermore, fixing with screws requires multiple screws, resulting in very low assembly efficiency.

[0004] Another method is to use ultrasonic waves to install and fix the upper and lower shells. While this one-piece ultrasonic molding method can ensure the effective volume inside the battery pack, the ultrasonic waves have very high energy, which can easily damage the internal components. These components are electrochemical in nature, and if the ultrasonic energy exceeds their steady-state range, it can cause the electrolyte and other components inside the battery pack to ignite, potentially leading to an explosion and causing injury or death. Furthermore, it is inconvenient to assemble. Secondly, the ultrasonic waves require regular testing and adjustment of their actual intensity, resulting in low assembly efficiency.

[0005] Meanwhile, the battery pack is fixed to the main unit by a snap-fit ​​mechanism. However, the existing snap-fit ​​mechanism has the problem of large gaps after snapping and instability. If the battery pack shakes due to the gap between it and the main unit during vacuum cleaner use, it can easily lead to unstable electrical connection between the battery pack and the main unit, resulting in poor contact and damage to the battery pack. Summary of the Invention

[0006] The purpose of this application is to provide a structurally stable quick-release battery pack for a vacuum cleaner and a vacuum cleaner in order to solve the above-mentioned technical problems.

[0007] According to one aspect of this application, a structurally stable quick-release battery pack for a vacuum cleaner and a vacuum cleaner are provided, comprising: a housing formed by snap-fit, a fastener formed on one side of the housing and slidably attached and detached from the main unit, and a key fastener assembly extending into the fastener to restrict sliding attachment and detachment, and pressable to disengage from the fastener along the direction of the extension into the fastener, the key fastener assembly comprising:

[0008] A limiting part is located inside the housing and extends into the latch;

[0009] The pressing part is integrally formed with the limiting part and extends from the inside of the housing to the outside of the housing, so that the limiting part can be disengaged from the fastening when pressed.

[0010] In at least one embodiment of this application, the key buckle assembly further includes:

[0011] A return spring abuts against the side of the pressing part near the inside of the housing. When the pressing part is released, the return spring drives the limiting part back into the latching position to restrict sliding disassembly and assembly.

[0012] In at least one embodiment of this application, the housing includes: an upper housing and a lower housing that are interlocked with each other;

[0013] The fastening position is formed on the side of the upper housing opposite to the lower housing, and the fastening position includes: a slide rail extending in a straight direction.

[0014] The vacuum cleaner's main unit and the battery pack are detached and reassembled by sliding along the slide rail, and the limiting part extends into the slide rail to restrict the relative sliding of the main unit and the battery pack.

[0015] In at least one embodiment of this application, the slide rail includes: a first surface and a second surface facing each other, and a third surface located between the first surface and the second surface, wherein the first surface is a surface connected to the upper housing, and the second surface is a surface located on the side of the first surface away from the upper housing;

[0016] A notch is formed on the first surface and the third surface, extending into the upper housing. The limiting part extends into the slide rail from the upper housing through the notch; and

[0017] Viewed along the sliding direction of the slide rail, the limiting part extends from the third surface into the slide rail, and the limiting part extends from the first surface into the slide rail, maintaining a gap with the second surface.

[0018] In at least one embodiment of this application, the side of the housing with the snap-fit ​​is called the back side, the side directly opposite the back side is called the front side, the side located between the front side and the back side and parallel to the third side is called the side side, and the pressing part extends from inside the housing outward to the side side of the housing.

[0019] The direction perpendicular to the side and toward the inside of the housing is called the first direction. When the pressing part presses along the first direction, the pressing part drives the limiting part to move away from the slide rail along the first direction toward the inside of the housing.

[0020] In at least one embodiment of this application, the reset spring abuts against the side of the pressing part near the housing along the first direction. When the pressing part is released, the reset spring drives the pressing part to reset in the opposite direction to the first direction, thereby driving the limiting part integrally formed with the pressing part to return to the latching slide rail in the opposite direction to the first direction.

[0021] In at least one embodiment of this application, the key buckle assembly further includes:

[0022] The first connecting part is integrally formed with the pressing part and abuts against the inner side of the housing;

[0023] The second connecting part is integrally formed with the first connecting part at one end and integrally formed with the limiting part at the other end, and the second connecting part abuts against the inner back of the housing; when the pressing part is released, the first connecting part abuts against the inner side of the housing to restrict the limiting part from staying in the slide rail.

[0024] In at least one embodiment of this application, a female buckle is formed on the side of the upper housing, and a male buckle is formed on the side of the lower housing. The upper housing and the lower housing are connected by the engagement of the female buckle and the male buckle.

[0025] In at least one embodiment of this application, the slide rails are provided on both sides of the buckle, and the key buckle assembly is provided on only one of the slide rails on both sides;

[0026] The battery pack also includes:

[0027] The electrical connection is located between the two slide rails. When the main unit of the vacuum cleaner and the battery pack are disassembled or detached by sliding along the slide rails, the electrical connection is electrically separated from or connected to the main unit.

[0028] A vacuum cleaner includes a structurally stable quick-release battery pack as described in any one of the above descriptions.

[0029] This application has the following beneficial effects:

[0030] This application provides a structurally stable quick-release battery pack for a vacuum cleaner and a vacuum cleaner in general. Under normal use, the limiting part extends into the latch and abuts against the stop surface of the latch, thereby restricting the relative sliding between the main unit and the battery pack and achieving a secure lock. When the battery pack needs to be removed, the user presses the exposed pressing part along the direction in which the limiting part extends into the latch. The pressing force is directly transmitted to the limiting part through the one-piece molded structure, causing it to disengage from the latch and releasing the sliding restriction. At this point, the user can smoothly pull the battery pack out of the main unit along the sliding direction. During installation, the user simply pushes the battery pack into the main unit along the sliding direction. The limiting part is temporarily retracted during assembly due to the pressure of the latch structure, and returns to the latch after reaching its final position, completing the lock. The entire process requires no tools, and the operation is quick and fluid.

[0031] The locking mechanism can be released by pressing the limiting part to disengage from the latch. Assembly and disassembly can be completed with one hand, significantly improving operational efficiency and making it convenient for users to replace or maintain the battery pack daily. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0033] Figure 1 A perspective view of a structurally stable quick-release battery pack for a vacuum cleaner according to an embodiment of this application;

[0034] Figure 2 for Figure 1 Another perspective view of the structurally stable quick-release battery pack for the vacuum cleaner;

[0035] Figure 3 for Figure 1 Another perspective view of the structurally stable quick-release battery pack for the vacuum cleaner;

[0036] Figure 4 for Figure 1 An exploded view of the structurally stable quick-release battery pack for the vacuum cleaner described in the article;

[0037] Figure 5 for Figure 1 A cross-sectional view of the structurally stable quick-release battery pack for a vacuum cleaner as described above;

[0038] Figure 6 for Figure 1 Another cross-sectional view of the structurally stable quick-release battery pack for the vacuum cleaner described in the article;

[0039] Figure 7 for Figure 1 The diagram shows the internal structure of the stable quick-release battery pack for the vacuum cleaner described in the article.

[0040] Explanation of icon numbers:

[0041] 100. Stable structure of the vacuum cleaner's quick-release battery pack;

[0042] 10. Housing; 11. Upper housing; 12. Lower housing; 13. Back side; 14. Front side; 15. Side side; F1. First direction; 111. Female snap fastener; 121. Male snap fastener;

[0043] 20. Snap-fit; 21. Slide rail; 211. First side; 212. Second side; 213. Third side; 214. Notch;

[0044] 30. Key buckle assembly; 31. Limiting part; 32. Pressing part; 33. Return spring; 34. First connecting part; 35. Second connecting part;

[0045] 40. Electrical connection. Detailed Implementation

[0046] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings. Preferred embodiments of this application are shown in the drawings. However, this application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this application.

[0047] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0048] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the specification of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0049] Please refer to Figure 1 - Figure 7 A vacuum cleaner quick-release battery pack 100 with a stable structure and a vacuum cleaner are provided, including: a housing 10 formed by snap-fit, a fastener 20 formed on one side of the housing 10 and slidably attached and detached from the main unit, and a key fastener assembly 30 extending into the fastener 20 to restrict sliding attachment and detachment, and pressable to disengage from the fastener 20 in the direction extending into the fastener 20, the key fastener assembly 30 including:

[0050] The limiting part 31 is located inside the housing 10 and extends into the fastener 20.

[0051] The pressing part 32 is integrally formed with the limiting part 31 and extends from inside the housing 10 to outside the housing 10, so that when pressed, the limiting part 31 can be disengaged from the buckle 20.

[0052] In this embodiment, the structurally stable vacuum cleaner quick-release battery pack 100 and vacuum cleaner are formed by snap-fitting together with a housing 10. A latch 20 is formed on one side of the housing 10 to cooperate with the main unit. The main unit and the battery pack can be assembled and disassembled along the sliding direction through the latch 20. A key fastener assembly 30 is provided inside the housing 10. The key fastener assembly 30 includes a limiting part 31 located inside the housing 10 and extending outward into the latch 20, and a pressing part 32 integrally formed with the limiting part 31 and extending from inside the housing 10 to outside the housing 10.

[0053] Under normal use, the limiting part 31 extends into the latch 20 and abuts against the stop surface of the latch 20, thereby restricting the relative sliding between the main unit and the battery pack and achieving a stable lock. When it is necessary to disassemble the battery pack, the user presses the exposed pressing part 32 with their hand along the direction in which the limiting part 31 extends into the latch 20. The pressing force is directly transmitted to the limiting part 31 through the one-piece molded structure, causing it to retract from the latch 20 and release the sliding restriction. At this time, the user can then smoothly pull the battery pack out of the main unit along the sliding direction. During installation, the user only needs to push the battery pack into the main unit along the sliding direction. The limiting part 31 is temporarily retracted during the assembly process due to the pressure of the latch 20 structure, and returns to the latch 20 after it is in place, completing the locking. The entire process does not require the use of tools, and the operation is quick and smooth.

[0054] The locking mechanism can be released by pressing the limiting part 31 to disengage from the latch 20. Both assembly and disassembly can be completed with one hand, which significantly improves operating efficiency and makes it convenient for users to replace or maintain the battery pack daily.

[0055] When locked, the limiting part 31 forms a positive mechanical limit with the stop surface of the latch 20, which can effectively prevent the relative sliding between the battery pack and the main unit during operation and avoid unstable electrical connection or poor contact due to shaking.

[0056] In at least one embodiment of this application, the key buckle assembly 30 further includes:

[0057] The return spring 33 abuts against the side of the pressing part 32 near the inside of the housing 10. When the pressing part 32 is released, the return spring 33 drives the limiting part 31 back into the latching position 20 to restrict sliding disassembly and assembly.

[0058] In this embodiment, in the initial state, the reset spring 33 pushes the pressing part 32 to the natural position on the outside, and the integrally formed limiting part 31 is then pushed into the latch 20, which cooperates with the stop surface of the latch 20 to complete the default locking. At this time, the relative sliding between the main unit and the battery pack is restricted.

[0059] During assembly, the user presses the pressing part 32, the return spring 33 is compressed, and the limiting part 31 simultaneously retracts from the buckle 20 along the pressing direction, making room for sliding assembly along the buckle 20; after the battery pack is pushed into place, the user releases the hand, the return spring 33 immediately rebounds, driving the pressing part 32 to reset, and at the same time automatically sending the limiting part 31 back to the buckle 20 to form a lock, realizing sliding into place and automatic locking.

[0060] If slight displacement, wear, or thermal expansion and contraction occurs during operation, the return spring 33 continuously provides a constant preload force to stably press the limiting part 31 into the latch 20, maintain the locking depth, suppress looseness and abnormal noise caused by gap changes, and ensure stable contact of the electrical contact part 40.

[0061] When the battery pack needs to be removed, the user presses the pressing part 32 again, the return spring 33 is compressed, the limiting part 31 disengages from the latch 20 and releases the lock; the battery pack slides out in the opposite direction. After releasing the hand, the return spring 33 automatically returns the pressing part 32 to the standby position.

[0062] The spring-loaded mechanism automatically returns the limiting part 31 to the latching position 20 upon release, preventing loosening or falling due to forgetting to reset or partially locking, thus improving assembly consistency.

[0063] The return spring 33 provides continuous preload, which keeps the limit part 31 and the latch 20 in a positive geometric limit and elastic compression combined locking, absorbing vibration and shock and reducing the probability of accidental disengagement during operation.

[0064] The spring preload can adaptively compensate for assembly tolerances, wear of housing 10 / locking position 20, and clearance changes caused by temperature cycling, maintaining the consistency of locking depth over a long period of time.

[0065] In at least one embodiment of this application, the housing 10 includes an upper housing 11 and a lower housing 12 that are interlocked with each other.

[0066] The latch 20 is formed on the side of the upper housing 11 opposite to the lower housing 12, and the latch 20 includes a slide rail 21 extending in a straight direction.

[0067] The vacuum cleaner's main unit and the battery pack are detached and reassembled by sliding along the slide rail 21. The limiting part 31 extends into the slide rail 21 to restrict the relative sliding of the main unit and the battery pack.

[0068] In this embodiment, the battery pack housing 10 is formed by snapping together an upper housing 11 and a lower housing 12 without screws or ultrasonic welding. A latch 20 is located on the side of the upper housing 11 opposite to the lower housing 12, and an integrally formed slide rail 21 extending in a straight direction is formed within the latch 20. During assembly, the user aligns the corresponding guide member on the main unit with the slide rail 21 of the battery pack and pushes it linearly along the slide rail 21; during disassembly, it is pulled out linearly in the opposite direction. During this process, the limiting part 31 in the latch assembly 30 extends from the housing 10 into the slide rail 21, and after assembly, forms a mechanical limit with the stop part inside the slide rail 21, preventing the main unit and battery pack from continuing to slide relative to each other, thus achieving locking; when disassembly is required, the operator uses the pressing part 32 to remove the limiting part 31 from the slide rail 21, and after unlocking, the battery pack can slide smoothly out along the slide rail 21.

[0069] The upper and lower housings 12 are formed by snap-fit, avoiding the use of bulky structures such as screw posts and welded flanges; the fasteners 20 are arranged on the side of the upper housing 11 away from the lower housing 12, which is conducive to the staggered isolation from the interior of the lower housing 12 (usually the main arrangement area of ​​the battery cell and BMS), reducing interference with the battery cell arrangement and heat dissipation channels, and improving the internal effective volume and thermal design freedom.

[0070] The linear guide 21 constrains assembly / disassembly into a single linear movement: alignment to pushing in (or pulling out). Compared to insertion, pulling, or snap-fit ​​flipping actions with more degrees of freedom, linear guidance makes alignment easier and improves installation efficiency.

[0071] The slide rail 21 provides a continuous guide surface, restricting the lateral and pitch degrees of freedom of the battery pack relative to the main unit; after being installed in place, the limiting part 31 extends into the slide rail 21 to form a positive stop, locking the axial sliding. The combination of guiding constraint and axial limiting significantly reduces connection gaps and clearances, making it less prone to shaking during operation.

[0072] Because the mechanical connection is stably constrained at the slide rail 21 and the limiting part 31, the docking terminals of the main unit and the battery pack are less affected by micro-vibration, and the contact pressure and position are more constant, which can reduce the risk of poor contact, arcing and abnormal heat generation, and improve the overall reliability of the machine.

[0073] The slide rail 21 and the buckle 20 can be injection molded in one step, with a short tolerance chain and easy control; the housing 10 adopts snap-fit ​​instead of screws / ultrasonic connection, reducing tooling and processes, and resulting in better yield and consistency.

[0074] When the battery pack needs to be removed, press the pressing part 32 in the direction of the limiting part 31. The limiting part 31 will simultaneously exit the slide rail 21 through the notch 214 of the first and third surfaces 213, releasing the axial stop. Then, the battery pack can be pulled out linearly in the opposite direction along the slide rail 21.

[0075] The limiting part 31 extends inward from the third surface 213 and the first surface 211 respectively, which is equivalent to forming opposing stops inside the slide rail 21: the integrated front and rear shoulders directly abut against the sliding direction, making it less prone to swaying and slipping than a single-sided stop, and having stronger shock and impact resistance.

[0076] Because the second surface 212 has a gap and the stop is formed by the first / third surface 213, it has a stronger tolerance for dimensional fluctuations of the housing 10, slide rail 21, and limiting part 31; combined with the reset mechanism (if provided), it can adaptively compensate for gap changes caused by wear and temperature changes, and maintain locking depth and stable fit.

[0077] With stable locking, no lateral jamming, and no axial loosening, the electrical connection 40 between the main unit and the battery pack is less affected by micro-vibrations after it is in place, and the contact pressure and position are more constant, which can reduce the risk of poor contact, arcing and overheating, and improve the overall reliability of the machine.

[0078] By creating a through notch 214 between the first surface 211 and the third surface 213, the limiting part 31 is simultaneously inserted into the slide rail 21 from both sides 15 and forms a stop in the sliding direction, while maintaining a gap with the second surface 212. This achieves a smooth entry / exit channel and quick assembly and disassembly, while also providing more stable locking, lower wear, and stronger resistance to accidental disengagement, ultimately improving the electrical connection and overall machine reliability.

[0079] In at least one embodiment of this application, the slide rail 21 includes: a first surface 211 and a second surface 212 facing each other, and a third surface 213 located between the first surface 211 and the second surface 212, wherein the first surface 211 is a surface connected to the upper housing 11, and the second surface 212 is a surface located on the side of the first surface 211 away from the upper housing 11.

[0080] A notch 214 is formed on the first surface 211 and the third surface 213, extending into the upper housing 11. The limiting part 31 extends from the upper housing 11 into the slide rail 21 through the notch 214; and

[0081] Viewed along the sliding direction of the slide rail 21, the limiting part 31 extends from the third surface 213 into the slide rail 21, and the limiting part 31 extends from the first surface 211 into the slide rail 21, maintaining a gap with the second surface 212.

[0082] In this embodiment, the slide rail 21 is composed of a first surface 211 and a second surface 212 facing each other, and a third surface 213 in between: the first surface 211 is connected to the upper housing 11, the second surface 212 is located on the side away from the upper housing 11, and the third surface 213 is between the two. The first surface 211 and the third surface 213 each have a notch 214 that penetrates into the upper housing 11. The limiting part 31 in the key assembly 30 extends into the slide rail 21 from inside the upper housing 11 through these notches 214, forming a blockage against the relative sliding of the host and battery pack.

[0083] During assembly, the mating parts of the main unit are pushed forward along the straight direction of the slide rail 21. When the operator presses the pressing part 32, the limiting part 31 retracts into the housing 10 along the notch 214, making room inside the slide rail 21, allowing the main unit to slide in smoothly and linearly; after the operator releases the hand, the limiting part 31 is pushed back into the slide rail 21 by the return spring 33 through the notch 214 between the first surface 211 and the third surface 213.

[0084] Viewed from the sliding direction, part of the limiting part 31 extends from the third surface 213 into the slide rail 21, and another part extends from the first surface 211 into the slide rail 21; together, they form opposing stop geometry within the slide rail 21, directly blocking the retreat path in the sliding direction, thereby restricting the axial relative sliding of the main unit and the battery pack. At the same time, the limiting part 31 maintains a gap with the second surface 212, preventing hard interference with the second surface 212.

[0085] When the battery pack needs to be removed, press the pressing part 32 in the direction of the limiting part 31. The limiting part 31 will simultaneously exit the slide rail 21 through the notch 214 of the first and third surfaces 213, releasing the axial stop. Then, the battery pack can be pulled out linearly in the opposite direction along the slide rail 21.

[0086] The limiting part 31 extends inward from the third surface 213 and the first surface 211 respectively, which is equivalent to forming opposing stops inside the slide rail 21: the integrated front and rear shoulders directly abut against the sliding direction, making it less prone to swaying and slipping than a single-sided stop, and having stronger shock and impact resistance.

[0087] Because the second surface 212 has a gap and the stop is formed by the first / third surface 213, the system has a stronger tolerance for dimensional fluctuations of the housing 10, slide rail 21, and limiting part 31; combined with the reset mechanism (if provided), it can adaptively compensate for gap changes caused by wear and temperature changes, and maintain the locking depth and stable fit.

[0088] By creating a through notch 214 between the first surface 211 and the third surface 213, the limiting part 31 is simultaneously inserted into the slide rail 21 from both sides 15 and forms a stop in the sliding direction. It also maintains a designed gap with the second surface 212, which not only achieves a smooth entry / exit channel and quick assembly and disassembly, but also brings more stable locking, lower wear and stronger resistance to accidental disengagement, ultimately improving the electrical connection and overall machine reliability.

[0089] In at least one embodiment of this application, the side of the housing 10 with the snap fastener 20 is designated as the back side 13, the side opposite to the back side 13 is designated as the front side 14, the side located between the front side 14 and the back side 13 and parallel to the third side 213 is designated as the side side 15, and the pressing part 32 extends from inside the housing 10 outward to the side side 15 of the housing 10.

[0090] The direction perpendicular to the side 15 and toward the inside of the housing 10 is denoted as the first direction F1. When the pressing part 32 presses along the first direction F1, the pressing part 32 drives the limiting part 31 to move away from the slide rail 21 along the first direction F1 toward the inside of the housing 10.

[0091] In this embodiment, during assembly and locking, the battery pack is pushed into the main unit along the slide rail 21. At this time, the pressing part 32 is in a naturally protruding position, which drives the integrated limiting part 31 to be located inside the slide rail 21, thereby achieving default locking (preventing axial retraction).

[0092] When disassembly is required, the operator presses the pressing part 32 on the side 15 along the first direction F1 (i.e., perpendicular to the side 15 and pointing inwards into the housing 10). The pressing force is directly transmitted through the integrated structure, driving the limiting part 31 to retract into the housing 10 along the same first direction F1, disengaging from the slide rail 21 cavity, and releasing the axial limit; then the battery pack can be pulled out linearly in the opposite direction along the slide rail 21.

[0093] When reinstalled or released, the pressing part 32 returns to the outward protruding position (due to the action of the return spring 33), and the limiting part 31 re-enters the slide rail 21 along the predetermined channel and engages with the stop surface to complete the locking.

[0094] Unlocking requires a dedicated pressing action along the first direction F1 (vertical side 15, pointing inwards from the housing 10); the vibration during operation is mainly along the sliding or random direction, making it difficult to form a coaxial pressing action, which significantly reduces the probability of accidental disengagement.

[0095] The pressing part 32 is exposed on the side 15, and the first direction F1 (perpendicular to the side 15 pointing into the housing 10) is used as the only unlocking direction, so that the unlocking action and the installation and disassembly sliding are orthogonally separated in space: it is safer to use and less likely to be accidentally dislodged; it is more convenient to operate and can be quickly disassembled with one hand; in terms of structure, the force flow is short and the wear is low, and it maintains a stable lock and reliable electrical connection for a long time.

[0096] In at least one embodiment of this application, the return spring 33 abuts against the side of the pressing part 32 near the inside of the housing 10 along the first direction F1. When the pressing part 32 is released, the return spring 33 drives the pressing part 32 to reset in the opposite direction to the first direction F1, thereby driving the limiting part 31 integrally formed with the pressing part 32 to return to the slide rail 21 of the latch 20 in the opposite direction to the first direction F1.

[0097] In this embodiment, the reset spring 33 is disposed on the side of the pressing part 32 near the inside of the housing 10, and abuts against the pressing part 32 along the first direction F1 (perpendicular to the side 15 and pointing inwards from the housing 10). The pressing part 32 and the limiting part 31 are integrally formed, and the two move in the same linear direction along the first direction F1.

[0098] When disassembling or assembling to avoid obstacles, the operator presses the pressing part 32 along the first direction F1; the return spring 33 is compressed and stored, and the pressing part 32 moves into the housing 10, driving the limiting part 31 to exit the slide rail 21 along the first direction F1, releasing the axial stop or making way for sliding in.

[0099] When the operator releases the pressing part 32, the return spring 33 releases its stored energy in the opposite direction to the first direction F1, pushing the pressing part 32 back to its natural position; since the pressing part 32 is integrated with the limiting part 31, it synchronously pulls the limiting part 31 in the opposite direction into the slide rail 21, and re-engages with the stop surface of the slide rail 21, completing the automatic return / relocking.

[0100] When the equipment vibrates or undergoes thermal expansion and contraction, causing slight displacement, the return spring 33 continuously provides a preload force in the opposite direction to the first direction F1, keeping the pressing part 32 / limiting part 31 within the locked final position range, maintaining the locking depth and contact stability.

[0101] When released, the spring will cause the switch to reset in the opposite direction, and the limiting part 31 will automatically return to the slide rail 21; this avoids partial locking, loosening, or accidental disengagement caused by forgetting to reset or stopping in the middle position.

[0102] By having the return spring 33 directly abut against the pressing part 32 along the first direction F1 and reset in the opposite direction when released, this embodiment makes the exit-entry action of the limiting part 31 a coaxial linear closed loop: precise unlocking, reliable reset, and priority locking. Therefore, without sacrificing quick-release efficiency, it significantly improves shock resistance, anti-loosening, assembly consistency, and electrical connection reliability.

[0103] In at least one embodiment of this application, the key buckle assembly 30 further includes:

[0104] The first connecting part 34 is integrally formed with the pressing part 32 and abuts against the inner side surface 15 of the housing 10.

[0105] The second connecting part 35 is integrally formed with the first connecting part 34 at one end and integrally formed with the limiting part 31 at the other end, and the second connecting part 35 abuts against the inner back surface 13 of the housing 10; when the pressing part 32 is released, the first connecting part 34 abuts against the inner side surface 15 of the housing 10 to restrict the limiting part 31 to stay in the slide rail 21.

[0106] In this embodiment, the battery pack is pushed into the main unit along the slide rail 21. After the pressing part 32 is released (or under the action of the return spring 33), the first connecting part 34 returns and abuts against the inner side surface 15 of the housing 10, and the second connecting part 35 abuts against the inner back surface 13 of the housing 10, causing the limiting part 31 to accurately extend into the slide rail 21 and stop at the target depth. At this time, the contact between the first connecting part 34 and the inner side surface 15 of the housing 10 is equivalent to a hard limiting reference, installing the entire pressing part 32-connecting part-limiting part 31 into place, thereby limiting the final dwelling position of the limiting part 31.

[0107] When the operator presses the pressing part 32, the first connecting part 34 disengages from the inner side 15, and the second connecting part 35 subsequently drives the limiting part 31 to exit the slide rail 21 along a predetermined path. After the press is released, the connecting parts return to the inner side 15 / inner back side 13 of the housing 10 under the action of the restoring force, and the limiting part 31 automatically returns to the predetermined depth in the slide rail 21, completing the relocking.

[0108] The first and second connecting parts 35 respectively abut against two orthogonal reference surfaces of the housing 10, forming surface support and posture constraint for the pressing part 32 and the limiting part 31. Even if there is vibration or thermal expansion and contraction, the limiting part 31 is not easy to disengage from the slide rail 21 and always stays in the locking range.

[0109] The first connecting part 34 rigidly abuts against the inner side 15 of the housing 10, providing a final stop for the pressing part 32-limiting part 31: it will reach its final position when released and stop when in position. This eliminates the risk of return error, partial jamming, or excessive rebound damaging the slide rail 21, and ensures consistent locking action.

[0110] The first connecting part 34 is located on the inner side 15, and the second connecting part 35 is located on the inner back side 13, forming two-sided support and posture stability for the limiting part 31: when there is vibration during operation or slight deformation of the outer shell, the limiting part 31 is not easy to swing or retreat in the slide rail 21, and poor contact and shaking noise are significantly reduced.

[0111] In at least one embodiment of this application, a female buckle 111 is formed on the side 15 of the upper housing 11, and a male buckle 121 is formed on the side 15 of the lower housing 12. The upper housing 11 and the lower housing 12 are connected by the engagement of the female buckle 111 and the male buckle 121.

[0112] In this embodiment, during assembly, the upper housing 11 and the lower housing 12 are aligned according to a preset reference. The sides 15 of both housings are respectively provided with a female snap fastener 111 (concave / window / hanging groove) and a male snap fastener 121 (protruding tongue / hook / spring). Under the guidance of an assembly fixture or manual assistance, the upper and lower housings 12 slowly close together along the normal direction.

[0113] When the male buckle 121 enters the opening area of ​​the female buckle 111, the chamfer of the male buckle 121 contacts the bevel of the female buckle 111, forcing a controlled elastic deformation (usually a slight deflection of thermoplastic engineering plastic) in a localized part of the housing 10 containing the male buckle 121 or the female buckle 111. Upon continued pressing, the male buckle 121 passes the limiting shoulder of the female buckle 111 and elastically recovers, forming a geometric self-locking mechanism; this is often accompanied by a "click" sound, indicating that the assembly is complete.

[0114] If multiple sets of male and female buckles 111 are arranged on the side 15, they will enter and lock in sequence during the mating process, ultimately achieving a circumferentially distributed snap-fit ​​constraint: both positioning and bearing.

[0115] During maintenance, the elastic lock can be partially released using a special pry tool or release hole, allowing the male latch 121 to disengage from the female latch 111, and then the upper and lower housings 12 can be separated, facilitating the inspection / replacement of internal components of the battery pack. The entire process does not require disassembly with a screwdriver or involve ultrasonic destructive opening of the housing.

[0116] By setting a female buckle 111 on the side 15 of the upper housing 11 and a male buckle 121 on the side 15 of the lower housing 12 to achieve elastic self-locking engagement, this embodiment transforms the combination of the upper and lower housings 12 into a high-efficiency, low-energy, and repeatable mechanical assembly method. This solves the problems of screws occupying volume and having low efficiency, as well as the safety hazards of ultrasonic waves. It also achieves comprehensive improvement in vibration resistance, stability, and maintenance sealing reliability.

[0117] In at least one embodiment of this application, the slide rails 21 are provided on both sides of the buckle 20, and the key buckle assembly 30 is provided on only one of the slide rails 21 on both sides.

[0118] The battery pack also includes:

[0119] The electrical connection part 40 is located between the two slide rails 21. When the main unit of the vacuum cleaner and the battery pack are disassembled and assembled by sliding along the slide rail 21, the electrical connection part 40 is electrically separated from or connected to the main unit.

[0120] In this embodiment, during use, the operator aligns the battery pack with the corresponding guide on the main unit, causing the slide rails 21 on both sides to simultaneously enter the mating groove of the main unit and push them in along a straight line.

[0121] During the pushing process, if it is necessary to make way, the operator presses the pressing part 32 on the button side, and the limiting part 31 retracts from the slide rail 21 on that side to make way for linear sliding, while the slide rail 21 on the other side continues to guide and support.

[0122] Once the slide reaches the mechanically positioned position, the pressing part 32 is released, and the limiting part 31 returns to the slide rail 21 on that side, forming an axial lock with the stop surface of the slide rail 21.

[0123] With the locking completed, the electrical contact 40 located between the two slide rails 21 naturally connects with the main unit terminal and establishes stable contact, thus achieving electrical connection.

[0124] When it is necessary to remove it, the operator only needs to press the key on one side to make the limiting part 31 disengage from the slide rail 21 on that side and release the axial lock.

[0125] Linear extraction in the opposite direction: During the entire extraction stroke, the electrical contact 40 first disengages (power is cut off), and then the slide rails 21 on both sides sequentially exit the mating groove to complete the complete separation.

[0126] After releasing the key, the latch resets, preparing for the next assembly.

[0127] The dual-sided slide rails 21 provide symmetrical guidance and support, restricting lateral / pitch freedom; after installation, the axial limit of the key locks the return path, which can significantly reduce connection gaps and running vibration.

[0128] The entire system can be axially locked and unlocked by setting a key assembly on only one side slide rail 21: it can be unlocked by pressing with one hand, without the need for symmetrical pressing with both hands.

[0129] Compared to dual-sided locking, it reduces one unlocking point, lowers the probability of incorrect operation, and shortens the assembly and disassembly efficiency.

[0130] A vacuum cleaner includes a structurally stable quick-release battery pack 100 as described in any one of the above-mentioned methods.

[0131] In this embodiment, the user aligns the battery pack with the latch 20 of the main unit and slides it linearly along the slide rail 21; at the end of the stroke, the limiting part 31 of the key assembly 30 returns to the slide rail 21 to form an axial lock (reset spring 33), thus completing the installation.

[0132] After the battery pack is mechanically positioned, the electrical connection part 40 between the two slide rails 21 naturally connects with the main unit terminal to form a reliable electrical connection; the BMS / protection circuit then closes with the main unit's electronic control, and the whole machine enters the usable state.

[0133] When the vacuum cleaner is working, the double-sided slide rails 21 provide guidance and lateral restraint, and the limiting part 31 provides axial stop to suppress shaking and relative displacement; the electrical contact part 40 is centered in force and has stable contact pressure to maintain continuous power supply.

[0134] When replacement / charging / repair is needed, the user presses the pressing part 32 on the side 15 (along the first direction F1), and the limiting part 31 exits the slide rail 21. First, turn off the power, and then pull it out. When replacing a fully charged battery pack, simply repeat the sliding action. The machine has a short downtime.

[0135] The combination of dual-rail guidance and axial locking significantly reduces gaps and clearances, and provides shock and vibration resistance during operation; the electrical contact part 40 is located between the two rails, with symmetrical force and constant contact pressure, reducing arcing and heat generation, and avoiding poor contact.

[0136] The embodiments described above are merely illustrative of several implementations of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the scope of protection of this application. Therefore, the scope of protection of this patent application should be determined by the appended claims.

Claims

1. A structural stable quick release battery pack for a vacuum cleaner, characterized by, include: The housing is formed by snap-fitting, a latch is formed on one side of the housing and slidably mounted and dismounted from the main unit, and a key assembly extends into the latch to restrict sliding and dismounting, and can be pressed away from the latch in the direction of extending into the latch, the key assembly comprising: A limiting part is located inside the housing and extends into the latch; The pressing part is integrally formed with the limiting part and extends from the inside of the housing to the outside of the housing, so that the limiting part can be disengaged from the fastening when pressed.

2. The structurally stable quick-release battery pack for a vacuum cleaner of claim 1, wherein, The key buckle assembly also includes: A return spring abuts against the side of the pressing part near the inside of the housing. When the pressing part is released, the return spring drives the limiting part back into the latching position to restrict sliding disassembly and assembly.

3. The structurally stable quick-release battery pack for a vacuum cleaner of claim 2, wherein, The housing includes an upper housing and a lower housing that are interlocked with each other; The fastening position is formed on the side of the upper housing opposite to the lower housing, and the fastening position includes: a slide rail extending in a straight direction. The vacuum cleaner's main unit and the battery pack are detached and reassembled by sliding along the slide rail, and the limiting part extends into the slide rail to restrict the relative sliding of the main unit and the battery pack.

4. The structurally stable quick-release battery pack for a vacuum cleaner of claim 3, wherein, The slide rail includes: a first surface and a second surface facing each other, and a third surface located between the first surface and the second surface, wherein the first surface is a surface connected to the upper housing, and the second surface is a surface located on the side of the first surface away from the upper housing; A notch is formed on the first surface and the third surface, extending into the upper housing. The limiting part extends into the slide rail from the upper housing through the notch; and Viewed along the sliding direction of the slide rail, the limiting part extends from the third surface into the slide rail, and the limiting part extends from the first surface into the slide rail, maintaining a gap with the second surface.

5. The structurally stable quick-release battery pack for a vacuum cleaner of claim 4, wherein, The side of the housing with the snap-fit ​​is called the back side, the side directly opposite the back side is called the front side, the side located between the front and back sides and parallel to the third side is called the side side, and the pressing part extends from the inside of the housing to the side side of the housing. The direction perpendicular to the side and toward the inside of the housing is called the first direction. When the pressing part presses along the first direction, the pressing part drives the limiting part to move away from the slide rail along the first direction toward the inside of the housing.

6. The structurally stable quick-release battery pack for a vacuum cleaner of claim 5, wherein, The reset spring abuts against the side of the pressing part near the inside of the housing along the first direction. When the pressing part is released, the reset spring drives the pressing part to reset in the opposite direction to the first direction, thereby driving the limiting part integrally formed with the pressing part to return to the locking slide rail in the opposite direction to the first direction.

7. The structurally stable quick-release battery pack for a vacuum cleaner of claim 5, wherein, The key buckle assembly also includes: The first connecting part is integrally formed with the pressing part and abuts against the inner side of the housing; The second connecting part is integrally formed with the first connecting part at one end and integrally formed with the limiting part at the other end, and the second connecting part abuts against the inner back of the housing; when the pressing part is released, the first connecting part abuts against the inner side of the housing to restrict the limiting part from staying in the slide rail.

8. The structurally stable quick-release battery pack for a vacuum cleaner according to claim 5, characterized in that, The upper housing has a female buckle on its side, and the lower housing has a male buckle on its side. The upper housing and the lower housing are connected by the engagement of the female buckle and the male buckle.

9. The structurally stable quick-release battery pack for a vacuum cleaner of claim 3, wherein, The slide rails are provided on both sides of the buckle, and the key buckle assembly is provided on only one of the slide rails on both sides; The battery pack also includes: The electrical connection is located between the two slide rails. When the main unit of the vacuum cleaner and the battery pack are disassembled or detached by sliding along the slide rails, the electrical connection is electrically separated from or connected to the main unit.

10. A vacuum cleaner characterised by Includes a vacuum cleaner quick-release battery pack with a stable structure as described in any one of claims 1 to 9.

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