Battery button structure

Abstract

The utility model discloses a battery button structure, including apron, key, lock tongue, platen and spring, apron is equipped with the first passageway that penetrates its thickness, key one end is connected with apron rotation, and the other end of key is connected with lock tongue, the one end that lock tongue is connected with key is located apron below, and the other end of lock tongue is movably arranged in first passageway, platen sets up apron below, and with apron detachable connection, both ends of spring respectively abut lock tongue and platen. Through lever principle work, when pressing key, its rotary connection end as fulcrum, the other end drive lock tongue to overcome spring force and realize unlocking to move downward, after loosening, the reset force of spring promotes lock tongue to go up reset and protrude apron, prepares for next time locking. This design can obtain enough lock tongue ejection force with smaller pressing force, and the operation is clear and labor-saving, and the feedback feeling is strong, and the hand feeling soft, the stroke indefinite problem caused by the elastic deformation of traditional long cantilever structure is solved.

Description

Technical Field

[0001] This utility model relates to the field of battery pack technology, specifically to a battery button structure. Background Technology

[0002] Currently, battery packs generally adopt an integrated locking structure design with buttons and latches. The buttons are slidably connected to the cover plate. When the user presses the button vertically, the latch sinks simultaneously, thus locking or ejecting the battery pack. This structure has the advantages of intuitive operation and fewer parts, and is widely used in various portable devices or power tools. However, with the increasing demand for battery pack platformization, the number of devices that the same battery pack needs to be compatible with is increasing. In order to improve battery life, the capacity of battery packs is constantly increasing. For example, the battery cells are gradually being upgraded from 18650 to 21700 specifications, which directly leads to a significant increase in the size of the battery pack. In this context, in order to maintain compatibility with various host interfaces, the mounting feet of the battery pack often need to retain the original design, which passively increases the length of the transmission arm between the button and the latch, forming an excessively long cantilever structure. However, the rigidity of the excessively long cantilever beam structure decreases, resulting in a soft button travel, vague feedback, and a significantly deteriorated user experience. Utility Model Content

[0003] To address the aforementioned technical problems, this utility model proposes a battery button structure that works on the principle of leverage. When the button is pressed, its rotating connecting end acts as a fulcrum, while the other end drives the locking tongue to move downward against the spring force to unlock. After being released, the spring's restoring force pushes the locking tongue upward to reset and protrude from the cover plate. The locking tongue can be pushed out with a relatively small pressing force, solving the problems of soft feel and uncertain stroke caused by elastic deformation in traditional long cantilever structures.

[0004] The technical solution adopted by this utility model is as follows: A battery button structure includes a cover plate, a button, a latch, a pressure plate, and a spring. The cover plate has a first channel extending through its thickness. One end of the button is rotatably connected to the cover plate, and the other end of the button is connected to the latch. One end of the latch connected to the button is located below the cover plate, and the other end of the latch is movably inserted through the first channel. The pressure plate is located below the cover plate and is detachably connected to the cover plate. The two ends of the spring abut against the latch and the pressure plate, respectively.

[0005] Optionally, the button includes a pressing part and a plug-in part fixedly connected to the pressing part, the latch includes a tongue and a connecting part connected to the tongue, the top of the tongue protrudes from the top of the connecting part, and the connecting part is provided with a slot that mates with the plug-in part.

[0006] Optionally, the pressing part has a rotating shaft on the side wall away from the insertion part, and the cover plate has a slot or shaft hole corresponding to the position of the rotating shaft, and the rotating shaft is rotatably placed in the slot or shaft hole.

[0007] Optionally, it also includes a first screw, the pressure plate having a through hole through which the first screw passes, and the cover plate having a first connecting post extending toward the pressure plate, the first connecting post having a screw hole, the first screw passing through the through hole and being threaded into the screw hole.

[0008] Optionally, the cover plate has a second channel extending through its thickness, and the pressing part is movably inserted into the second channel.

[0009] Optionally, it also includes a second screw, the cover plate is provided with a second connecting post extending toward the pressure plate, the connecting part is provided with a first limiting hole and a second limiting hole, the second screw passes through the first limiting hole and is threaded to the second connecting post, the diameter of the first limiting hole is larger than the diameter of the second screw, and the end of the spring is located in the second limiting hole.

[0010] Optionally, the thickness of the insertion portion gradually increases from the end closer to the slot to the end farther away from the slot.

[0011] Optionally, the pressing part is provided with a guide post, and the guide post is provided with a guide hole that is interference-fitted with the end of the spring.

[0012] The beneficial effects of this invention are as follows: Working on the lever principle, when the button is pressed, its rotating connecting end acts as a fulcrum, driving the latch downwards against the spring force to unlock. After release, the spring's restoring force pushes the latch upwards to reset and protrude from the cover plate, preparing for the next locking action. This design achieves sufficient latch ejection force with relatively small pressing force, providing clear and effortless operation with strong feedback. It solves the problems of a soft feel and inconsistent travel caused by elastic deformation in traditional long cantilever structures. The latch movement is directly driven by the rigid rotation of the button, independent of elastic deformation, ensuring a stable and sufficient travel with each press. This allows the latch to completely disengage from the overall locking mechanism, effectively preventing battery pack removal failure due to incomplete unlocking, greatly improving product reliability and user experience. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of a battery button in the background art;

[0014] Figure 2 This is an exploded view of the battery button structure proposed in an embodiment of the present invention;

[0015] Figure 3 This is a schematic diagram of the locking tongue of the battery button structure proposed in an embodiment of the present utility model;

[0016] Figure 4 This is a schematic diagram of the battery button structure proposed in this embodiment of the present invention when it is not pressed.

[0017] Figure 5 This is a schematic diagram of the battery button structure proposed in this embodiment of the present invention when the button is pressed.

[0018] The labels in the attached figures are as follows: 1. Cover plate; 11. First channel; 12. Second channel; 13. Slot; 14. First connecting post; 15. Second connecting post; 2. Button; 21. Pressing part; 211. Rotating shaft; 212. Guide post; 22. Insertion part; 3. Locking tongue; 31. Tongue; 32. Connecting part; 321. Slot; 322. First limiting hole; 323. Second limiting hole; 4. Pressure plate; 41. Through hole; 42. First screw; 43. Second screw; 5. Spring; 6. Battery cell. Detailed Implementation

[0019] The present application will now be described in further detail with reference to the accompanying drawings and embodiments.

[0020] like Figures 2 to 5 As shown, this embodiment discloses a battery button structure, including a cover plate 1, a button 2, a locking tongue 3, a pressure plate 4, and a spring 5. The cover plate 1 has a first channel 11 extending through its thickness. One end of the button 2 is rotatably connected to the cover plate 1, and the other end of the button 2 is connected to the locking tongue 3. The end of the locking tongue 3 connected to the button 2 is located below the cover plate 1, and the other end of the locking tongue 3 is movably inserted through the first channel 11. The pressure plate 4 is located below the cover plate 1 and is detachably connected to the cover plate 1. The two ends of the spring 5 abut against the locking tongue 3 and the pressure plate 4, respectively. Working through the lever principle, when the button 2 is pressed, its rotatable connection end acts as a fulcrum, and the other end drives the locking tongue 3 to move downwards against the force of the spring 5 to unlock. After release, the restoring force of the spring 5 pushes the locking tongue 3 upwards to reset and protrude from the cover plate 1, preparing for the next locking. This design achieves a sufficiently large pushing force of the locking tongue 3 with a relatively small pressing force, resulting in clear and effortless operation, strong feedback, and completely solving the problems of soft feel and uncertain stroke caused by elastic deformation in traditional long cantilever structures. The movement of the locking tongue 3 is directly driven by the rigid rotation of the button 2, without relying on elastic deformation. This ensures that each press provides a stable and sufficient travel, allowing the locking tongue 3 to completely disengage from the overall locking mechanism. This effectively prevents the battery pack from failing due to incomplete unlocking, greatly improving the product's functional reliability and user experience.

[0021] like Figure 2 and 3As shown, the button 2 in this embodiment includes a pressing part 21 and a plug-in part 22 fixedly connected to the pressing part 21. The latch 3 includes a tongue 31 and a connecting part 32 connected to the tongue 31. The top of the tongue 31 protrudes from the top of the connecting part 32. The connecting part 32 is provided with a slot 321 that mates with the plug-in part 22. The pressing part 21 and the plug-in part 22 can be integrally injection molded, and the tongue 31 and the connecting part 32 can be integrally injection molded. The separate design of the button 2 and the latch 3 allows the button 2 and the latch 3 to be manufactured using the most suitable materials and processes. For example, the button 2 can focus on appearance and feel, while the latch 3 can focus on strength and wear resistance. A reliable connection is achieved through the plug-in method, reducing the complexity of the overall structure and manufacturing cost. The cooperation between the slot 321 and the plug-in part 22 provides a stable force transmission path, ensuring that the action of the button 2 can be accurately converted into the movement of the latch 3.

[0022] like Figure 2 As shown, in this embodiment, the pressing part 21 has a rotating shaft 211 on its side wall away from the insertion part 22. The cover plate 1 has a slot 13 or a shaft hole corresponding to the position of the rotating shaft 211. The rotating shaft 211 is rotatably placed in the slot 13 or the shaft hole. The cooperation between the rotating shaft 211 and the shaft hole 13 forms a stable rotation fulcrum.

[0023] like Figure 2 As shown, this embodiment also includes a first screw 42. The pressure plate 4 has a through hole 41 for the first screw to pass through. The cover plate 1 has a first connecting post 14 extending toward the pressure plate 4. The first connecting post 14 has a screw hole. The first screw 42 passes through the through hole 41 and is threaded into the screw hole. When the pressing part 21 is pressed, the pressing part 21 drives the locking tongue 3 to descend through the insertion part 22. The tongue 31 moves downward, and the spring 5 is compressed. When the pressing part 21 is released, the spring 5 returns to its original position, and the locking tongue 3 moves upward under the action of the restoring force. The tongue 31 moves upward and protrudes from the cover plate 1. The thickness of the insertion part 22 and the connecting part 32 is less than the driving distance between the first connecting post 14 and the pressure plate 4, so that the locking tongue 3 moves between the cover plate 1 and the pressure plate 4.

[0024] like Figure 2 As shown, in this embodiment, the cover plate 1 has a second channel 12 extending through its thickness, and the pressing part 21 is movably inserted into the second channel 12. The second channel 12 provides precise movement space and guidance for the pressing part 21 of the button 2, ensuring that it does not deviate when pressed.

[0025] like Figure 2As shown, this embodiment also includes a second screw 43. The cover plate 1 has a second connecting post 15 extending towards the pressure plate 4. The connecting part 32 has a first limiting hole 322 and a second limiting hole 323. The second screw 43 passes through the first limiting hole 322 and is threadedly connected to the second connecting post 15. The diameter of the first limiting hole 322 is larger than the diameter of the second screw 43. The end of the spring 5 is located inside the second limiting hole 323. The pressure plate 4 has multiple through holes 41. The heads of the first screw 42 and the second screw 43 are respectively engaged on the end face of the pressure plate 4. The first screw 42 passes through the screw hole and is connected to the first connecting post 14. The second screw 43 passes through the first limiting hole 322 and is connected to the second connecting post 15. The thickness of the insertion part 22 and the connecting part 32 is less than the driving distance between the second connecting post 15 and the pressure plate 4. The second screw 43 passes through the larger-diameter first limiting hole 322 and connects to the second connecting post 15. This structure, while "hanging" the latch 3 assembly on the cover plate 1, allows the latch 3 to have a small amount of forward or backward or left and right movement space within the limiting hole range. It can adapt to and offset assembly tolerances, prevent assembly stress or motion interference caused by dimensional deviations, and ensure smooth operation. The second limiting hole 323 positions the end of the spring 5 through an interference fit, preventing the spring 5 from shifting, twisting, or dislodging during compression and reset, ensuring that the spring force is always applied in the designed direction, and its function is reliable.

[0026] like Figure 2 As shown, in this embodiment, the thickness of the insertion portion 22 gradually increases from the end closer to the slot 321 towards the end farther from the slot 321. The insertion portion 22 adopts a wedge-shaped design, which forms an interference fit or an increasingly tight fit when inserted into the slot 321 of the latch 3. This structure can achieve a firm and non-playing connection between the button 2 and the latch 3 without additional fasteners, ensuring that the two can move synchronously when force is applied, effectively transmitting the pressing force, and avoiding energy loss, abnormal noise, or action delay caused by loose connection.

[0027] like Figure 2 As shown, the pressing part 21 in this embodiment is provided with a guide post 212, and the guide post 212 is provided with a guide hole that is interference-fitted with the end of the spring 5. There are multiple springs 5, some of which abut against the pressure plate 4 at one end and against the cover plate 1 at the other end, while other springs 5 ​​are located inside the guide post 212 at one end and against the battery cell 6 at the other end. Multiple springs 5 ​​can provide a stronger restoring force.

[0028] It is understood that the specific embodiments described above are merely for explaining the relevant utility model and not for limiting the utility model. It should also be noted that, for ease of description, only the parts related to the utility model are shown in the accompanying drawings. Multiple technical solutions in the same embodiment, as well as multiple technical solutions in different embodiments, can be arranged and combined to form new technical solutions that do not contradict or conflict with each other. All equivalent structural transformations made based on the content of this utility model specification and drawings, directly or indirectly applied to other related technical fields, are similarly included within the protection scope of this utility model.

Claims

1. A battery button structure, characterized in that, Includes cover plate, button, latch, pressure plate and spring. The cover plate has a first channel that extends through its thickness; One end of the button is rotatably connected to the cover plate, and the other end of the button is connected to the locking tongue; One end of the latch connected to the button is located below the cover plate, and the other end of the latch is movably inserted through the first channel; The pressure plate is located below the cover plate and is detachably connected to the cover plate; The two ends of the spring abut against the locking tongue and the pressure plate, respectively.

2. The battery button structure according to claim 1, characterized in that, The button includes a pressing part and a plug-in part fixedly connected to the pressing part. The latch includes a tongue and a connecting part connected to the tongue. The top of the tongue protrudes from the top of the connecting part. The connecting part is provided with a slot that mates with the plug-in part.

3. The battery button structure according to claim 2, characterized in that, The pressing part has a rotating shaft on the side wall away from the insertion part, and the cover plate has a slot or shaft hole corresponding to the position of the rotating shaft, and the rotating shaft is rotatably placed in the slot or shaft hole.

4. The battery button structure according to claim 1, characterized in that, It also includes a first screw, the pressure plate having a through hole through which the first screw passes, the cover plate having a first connecting post extending toward the pressure plate, the first connecting post having a screw hole, the first screw passing through the through hole and being threadedly connected to the screw hole.

5. The battery button structure according to claim 2, characterized in that, The cover plate has a second channel that extends through its thickness, and the pressing part is movably inserted into the second channel.

6. The battery button structure according to claim 2, characterized in that, It also includes a second screw, the cover plate is provided with a second connecting post extending toward the pressure plate, the connecting part is provided with a first limiting hole and a second limiting hole, the second screw passes through the first limiting hole and is threadedly connected to the second connecting post, the diameter of the first limiting hole is larger than the diameter of the second screw, and the end of the spring is located in the second limiting hole.

7. The battery button structure according to claim 2, characterized in that, The thickness of the connector gradually increases from the end closer to the slot to the end farther away from the slot.

8. The battery button structure according to claim 2, characterized in that, The pressing part is provided with a guide post, and the guide post is provided with a guide hole that is interference-fitted with the end of the spring.

Images