A pop-off cover type earphone charging bin

CN224760342UActive Publication Date: 2026-09-15HUIZHOU JINGWEI HUATIAN TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202522193125.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-10-16
Publication Date
2026-09-15
Estimated Expiration
2035-10-16

AI Technical Summary

Technical Problem

[0003]磁吸式开盖结构主要依赖磁体间的吸附力实现盒盖闭合,但在长期反复开合使用过程中,磁力易发生衰减,导致吸附力减弱,进而引发开盖手感变差、盒盖闭合不牢或意外弹开等问题,影响开盖顺畅性与可靠性

Benefits of technology

[0012] 1. This utility model provides stable and controllable elastic support for the opening action by setting an elastic element inside the lower connecting seat to drive the connecting arm to rotate. Compared with the traditional structure that relies on magnetic closing, this mechanical elastic drive method effectively eliminates problems such as insecure closing, accidental opening, and poor opening feel caused by magnetic force attenuation. The user only needs to trigger the unlocking action, and the upper cover can automatically, smoothly and stably open to the preset angle under the action of the torsion spring, which significantly improves the smoothness, reliability and consistency of the opening action and the user experience.

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Abstract

The utility model provides a pop -open cover formula earphone charging bin, including bottom shell and upper cover, the top of bottom shell is fixedly installed and is placed with the earphone bin, the top one end of earphone bin installation has the lower connecting seat, the lower connecting seat rotatory installation has two groups of connecting arms, the bottom of upper cover is fixedly installed and is placed with the upper connecting seat, and one end of two groups connecting arm is all with upper connecting seat rotatory connection, the inside installation of lower connecting seat has the elastic piece for driving connecting arm rotation, the one end of upper connecting seat is provided with the buckle, the inside installation of earphone bin has the locking assembly with buckle connection, the top of earphone bin installation is used for the key of driving locking assembly unlocking, the utility model discloses the inside setting of lower connecting seat elastic piece drive connecting arm rotation, provides stable controllable elastic force support for the uncap action, has improved the fluency, reliability and user experience consistency of uncap action obviously.
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Description

Technical Field

[0001] This utility model belongs to the field of Bluetooth headset technology, and more specifically, it relates to a pop-up cover type headset charging case. Background Technology

[0002] In the true wireless stereo (TWS) earphone market, the charging case is an indispensable core accessory, integrating two key functions: storage and charging. The opening structure design of the charging case directly affects the ease of user operation, product durability, and overall user experience. Currently, the mainstream charging case opening structures mainly include two types: magnetic and snap-on.

[0003] Magnetic opening mechanisms rely primarily on the attraction between magnets to close the lid. However, with repeated opening and closing over time, the magnetic force weakens, leading to a decrease in the attractive force and resulting in problems such as a poorer opening feel, insecure closure, or accidental pop-out, affecting the smoothness and reliability of opening. While snap-on opening mechanisms provide a relatively secure locking effect, users must manually pry open the snaps each time, a cumbersome process that doesn't meet user convenience requirements. More seriously, frequent mechanical locking and unlocking actions can easily cause wear and even plastic deformation of the snap-on structure, ultimately leading to locking failure or difficulty in opening, severely impacting the product's lifespan. Therefore, in view of these issues, this paper researches and improves upon existing structures to provide a pop-out headphone charging case, aiming to achieve greater practical value. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a pop-up cover type earphone charging case, which is achieved by the following specific technical means:

[0005] A pop-up earphone charging case includes a bottom shell and a top cover. An earphone compartment is fixedly installed on the top of the bottom shell. A lower connecting seat is installed at one end of the top of the earphone compartment. Two sets of connecting arms are rotatably installed on the lower connecting seat. An upper connecting seat is fixedly installed on the bottom of the top cover, and one end of each set of connecting arms is rotatably connected to the upper connecting seat. An elastic element for driving the connecting arms to rotate is installed inside the lower connecting seat. A buckle is provided at one end of the upper connecting seat. A locking component connected to the buckle is installed on the inside of the earphone compartment. A button for unlocking the locking component is installed on the top of the earphone compartment.

[0006] Furthermore, the top end of the earphone storage compartment is provided with a mounting groove, and the lower connecting seat is fixedly installed in the mounting groove by fasteners; two sets of lower rotating shafts are installed inside the lower connecting seat, and the two sets of lower rotating shafts are parallel to each other; the bottom end of the connecting arm is provided with a through hole for connecting to the lower rotating shaft.

[0007] Furthermore, the elastic element is a torsion spring, and there is at least one set of torsion springs, which are fitted on the outside of the lower rotating shaft. The two ends of the torsion springs are respectively abutted against the connecting arm and the lower connecting seat.

[0008] Furthermore, the upper connecting seat has two sets of upper rotating shafts installed inside, and the two sets of upper rotating shafts are parallel to each other; the top of each connecting arm is provided with a through hole for connecting to the upper rotating shaft; the upper connecting seat is fixedly connected to the upper cover by fastening screws.

[0009] Furthermore, the locking assembly includes a rotating seat rotatably mounted on the bottom side of the earphone compartment via a shaft. A locking tongue is provided on one side of the rotating seat, and a through groove is provided on the side of the earphone compartment for the locking tongue to protrude and engage with a buckle. A driving block is provided on the other side of the rotating seat, and a fixing post is provided near the bottom of the driving block. The bottom end of the button is located on the top side of the driving block.

[0010] Furthermore, the earphone storage compartment is fixed to the bottom of the rotating base by fasteners, and a spring is connected to the outside of the fixed post, with the other end of the spring connected to the fixed base.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1. This utility model provides stable and controllable elastic support for the opening action by setting an elastic element inside the lower connecting seat to drive the connecting arm to rotate. Compared with the traditional structure that relies on magnetic closing, this mechanical elastic drive method effectively eliminates problems such as insecure closing, accidental opening, and poor opening feel caused by magnetic force attenuation. The user only needs to trigger the unlocking action, and the upper cover can automatically, smoothly and stably open to the preset angle under the action of the torsion spring, which significantly improves the smoothness, reliability and consistency of the opening action and the user experience.

[0013] 2. This utility model uses a button-driven locking component that works in conjunction with the snap-fit ​​of the upper connecting seat to achieve locking. The user only needs to press the button to drive the rotating seat to rotate through the drive block, so that the locking tongue overcomes the spring tension and disengages from the snap-fit, thus achieving one-button unlocking. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall state of the device when the top cover of this utility model is opened.

[0015] Figure 2 This is a schematic diagram of the overall state of the device when the top cover is closed.

[0016] Figure 3 This is a structural disassembly diagram of this utility model.

[0017] Figure 4 This is a schematic diagram showing the separation of the top cover, connecting arm, and upper connecting seat of this utility model.

[0018] Figure 5 This is a disassembly diagram of the upper connecting seat and locking assembly of this utility model.

[0019] In the diagram, the correspondence between component names and drawing numbers is as follows:

[0020] 1. Bottom shell; 2. Top cover; 3. Connecting arm; 4. Button; 5. Earphone compartment; 6. Upper connector; 601. Buckle; 7. Lower connector; 8. Rotating seat; 801. Locking tongue; 802. Drive block; 803. Fixing post; 9. Fixing seat. Detailed Implementation

[0021] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0022] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] Example:

[0025] As attached Figure 1 To be continued Figure 5 As shown:

[0026] This utility model provides a pop-up earphone charging case, including a bottom shell 1 and a top cover 2. An earphone compartment 5 is fixedly installed on the top of the bottom shell 1. A lower connecting seat 7 is installed at one end of the top of the earphone compartment 5. Two sets of connecting arms 3 are rotatably installed on the lower connecting seat 7. An upper connecting seat 6 is fixedly installed on the bottom of the top cover 2, and one end of each set of connecting arms 3 is rotatably connected to the upper connecting seat 6. An elastic element for driving the connecting arms 3 to rotate is installed inside the lower connecting seat 7. A buckle 601 is provided at one end of the upper connecting seat 6. A locking component connected to the buckle 601 is installed on the inner side of the earphone compartment 5. A button 4 for driving the locking component to unlock is installed on the top of the earphone compartment 5. Through the synergistic action of the connecting arms 3, the elastic element and the locking component, the automatic pop-up and reliable locking functions triggered by the button 4 are realized, fundamentally replacing the easily attenuated magnetic structure and the easily worn mechanical buckle, providing a more stable and durable opening and closing experience.

[0027] The earphone storage compartment 5 has a mounting groove at its top, and the lower connecting seat 7 is fixedly installed in the mounting groove by fasteners. Two sets of lower rotating shafts are installed inside the lower connecting seat 7, and these two sets of lower rotating shafts are parallel to each other. The bottom end of each connecting arm 3 has a through hole for connecting to the lower rotating shafts. The mounting groove and fastener fixing method ensure the stable installation of the lower connecting seat 7, providing a reliable foundation for the entire opening mechanism. The design of two sets of parallel lower rotating shafts ensures the synchronicity and stability of the dual-point rotation at the bottom of the connecting arm 3, preventing skewness or jamming during the opening process and improving the smoothness of the operation.

[0028] The elastic element is a torsion spring, and there is at least one set of torsion springs, which are fitted on the outside of the lower rotating shaft. The two ends of the torsion spring are respectively abutted against the connecting arm 3 and the lower connecting seat 7. The torsion spring is fitted on the outside of the lower rotating shaft and pre-compressed between the connecting arm 3 and the lower connecting seat 7 to provide a continuous and stable elastic driving force. This design directly drives the connecting arm 3 to rotate, realizing the automatic opening of the upper cover 2. It completely avoids the problems of poor closure, weak opening or accidental opening caused by magnetic force attenuation in the magnetic suction structure. Moreover, the life of the torsion spring is much longer than that of the magnet, and the durability is significantly improved.

[0029] The upper connecting seat 6 has two sets of upper rotating shafts installed inside, and the two sets of upper rotating shafts are parallel to each other; the top of each connecting arm 3 is provided with a through hole for connecting to the upper rotating shaft; the upper connecting seat 6 is fixedly connected to the upper cover 2 by fastening screws; the design of the two sets of parallel upper rotating shafts ensures the synchronicity and stability of the rotation connection at the top of the connecting arm 3, and forms a double-axis four-support-point structure with the lower rotating shaft, so that the upper cover 2 moves more smoothly and evenly during the opening and closing process, effectively preventing structural deformation or wear.

[0030] The locking assembly includes a rotating seat 8 rotatably mounted on the bottom side of the earphone compartment 5 via a shaft. A locking tongue 801 is provided on one side of the rotating seat 8, and a through groove is provided on the side of the earphone compartment 5 for the locking tongue 801 to be exposed and engaged with the buckle 601. A driving block 802 is provided on the other side of the rotating seat 8, and a fixing post 803 is provided near the bottom of the driving block 802. The bottom end of the button 4 is located on the top side of the driving block 802.

[0031] The earphone compartment 5 is mounted on a fixed base 9 at the bottom of the rotating base 8 via fasteners. A spring (not shown in the figure) is connected to the outer side of the fixed post 803, and the other end of the spring is connected to the fixed base 9. The fixed base 9 provides a stable fulcrum for the reset spring. The spring connects the fixed post 803 and the fixed base 9 of the rotating base 8. After the button 4 is released, it automatically pushes the rotating base 8 to reset, driving the locking tongue 801 to engage with the latch 601, ensuring the automatic completion of the locking action and the long-term stability of the locking force.

[0032] The working principle of this embodiment:

[0033] When the upper cover 2 is closed, the latch 601 on the upper connecting seat 6 is firmly engaged with the locking tongue 801 of the locking assembly. At this time, the torsion spring mounted on the lower rotating shaft is compressed by the connecting arm 3 and the lower connecting seat 7 and is in a stored energy state. The spring in the locking assembly applies elastic force to the fixing post 803 of the rotating seat 8, keeping the locking tongue 801 locked with the latch 601.

[0034] When unlocking, button 4 can be pressed, and the bottom of button 4 presses down on the locking component drive block 802. The pressure of the drive block 802 causes the rotating seat 8 to rotate around its axis, overcoming the elastic force of the return spring and causing the locking tongue 801 to disengage from the latch 601. Once the locking tongue 801 disengages from the latch 601, the compressed torsion spring immediately releases its stored elastic potential energy, driving the connecting arm 3 to rotate around the lower and upper rotating axes. The rotation of the connecting arm 3 pushes the upper connecting seat 6 and the upper cover 2 fixed thereon to move, achieving automatic pop-out.

[0035] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A pop-out type earphone charging case, comprising a bottom shell (1) and a top cover (2), wherein an earphone storage compartment (5) is fixedly installed on the top of the bottom shell (1), characterized in that: The headphone compartment (5) has a lower connecting seat (7) installed at one top end. The lower connecting seat (7) is rotatably mounted with two sets of connecting arms (3). The upper connecting seat (6) is fixedly installed at the bottom of the upper cover (2). One end of each of the two sets of connecting arms (3) is rotatably connected to the upper connecting seat (6). The lower connecting seat (7) has an elastic element installed inside for driving the connecting arms (3) to rotate. One end of the upper connecting seat (6) is provided with a buckle (601). The inner side of the headphone compartment (5) is equipped with a locking component connected to the buckle (601). The top of the headphone compartment (5) is equipped with a button (4) for driving the locking component to unlock.

2. The pop-out cover type earphone charging case as described in claim 1, characterized in that: The top end of the earphone storage compartment (5) is provided with an installation groove, and the lower connecting seat (7) is fixedly installed in the installation groove by fasteners; two sets of lower rotating shafts are installed inside the lower connecting seat (7), and the two sets of lower rotating shafts are parallel to each other; the bottom end of the connecting arm (3) is provided with a through hole connected to the lower rotating shaft.

3. The pop-up earphone charging case as described in claim 2, characterized in that: The elastic element is a torsion spring, and the torsion spring is at least one set, which is fitted on the outside of the lower rotating shaft. The two ends of the torsion spring are respectively abutted against the connecting arm (3) and the lower connecting seat (7).

4. The pop-opening earphone charging case as described in claim 1, characterized in that: The upper connecting seat (6) is equipped with two sets of upper rotating shafts, and the two sets of upper rotating shafts are parallel to each other; the top of the connecting arm (3) is provided with a through hole for connecting to the upper rotating shaft; the upper connecting seat (6) is fixedly connected to the upper cover (2) by fastening screws.

5. The pop-opening earphone charging case as described in claim 1, characterized in that: The locking assembly includes a rotating seat (8) that is rotatably mounted on the bottom side of the earphone storage compartment (5) via a shaft. A locking tongue (801) is provided on one side of the rotating seat (8), and a through groove is provided on the side of the earphone storage compartment (5) for the locking tongue (801) to be exposed for engaging with a buckle (601). A driving block (802) is provided on the other side of the rotating seat (8), and a fixing post (803) is provided near the bottom of the driving block (802). The bottom end of the button (4) is located on the top side of the driving block (802).

6. The pop-opening earphone charging case as described in claim 5, characterized in that: The earphone storage compartment (5) is mounted on a fixed seat (9) at the bottom of the rotating seat (8) by fasteners. A spring is connected to the outside of the fixed post (803), and the other end of the spring is connected to the fixed seat (9).