Bluetooth earphone wireless charging device
By introducing a protective shell and a spring-loaded mechanism into the Bluetooth earphone charging case, the problem of insufficient space utilization in the charging case is solved, enabling convenient charging and automatic pop-out of the earphones, thus improving the user experience.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-14
- Publication Date
- 2026-04-14
AI Technical Summary
The existing Bluetooth earphone charging case has an irregular structure and the linkage mechanism occupies a lot of space, which affects the space utilization efficiency of the charging case.
Featuring a protective shell and spring-loaded mechanism design, including a placement slot, charging module, charging telescopic contacts, and spring-loaded mechanism, the earphones automatically pop out when pressed, making efficient use of the space inside the charging case.
It enables convenient charging and automatic pop-out of the earphones, improves the space utilization of the charging case, and has a simple structure and is easy to use.
Smart Images

Figure CN224124234U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of wireless charging technology, and in particular to a wireless charging device for Bluetooth headsets. Background Technology
[0002] Bluetooth headphones can be divided into five categories: over-ear, in-ear, neckband, dual-ear independent, and bone conduction headphones. Among them, dual-ear independent Bluetooth headphones are also known as true wireless headphones. Dual-ear independent Bluetooth headphones are very small and lightweight, which also means that their internal battery capacity is limited and their battery life is relatively weak. They need to be equipped with a special charging case to charge dual-ear independent Bluetooth headphones in order to enhance their battery life.
[0003] The prior art patent with application number CN202011038874.8 discloses an automatic lifting wireless Bluetooth earphone charging device, including a placement slot, a cover, and an earphone compartment for earphone placement. The bottom of the earphone compartment has two top slots. The placement slot is equipped with a linkage mechanism, a lifting block, two rocker arms, and two top blocks. The top blocks are aligned with the top slots and have a limiting structure to restrict their vertical movement in and out of the top slots. When the earphone placement slot is opened, the earphones are automatically lifted up, freeing them from magnetic attraction and making it easier for the user to grab them. However, in practical applications, due to the small space of the charging case, the drive rods of the linkage mechanism and the lifting device occupy a lot of space in the charging case, resulting in an irregular and unscientific structural layout of the charging case. Utility Model Content
[0004] The purpose of this invention is to solve the problems existing in the prior art by proposing a wireless charging device for Bluetooth headsets.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A Bluetooth earphone wireless charging device includes a charging case, a lid hinged to the charging case, and earphone bodies placed inside the charging case, and further includes:
[0007] A protective shell is fixed inside the charging case. An installation cavity is formed between the protective shell and the inner wall of the charging case. A charging module is provided inside the installation cavity. The charging module is connected to a charging telescopic contact that is electrically connected to the earphone body.
[0008] A placement slot, which is formed inside the protective shell, is used to place the earphone body;
[0009] And a rebound mechanism, which is disposed in the mounting cavity and is used to eject the earphone body from the placement slot upwards.
[0010] Preferably, the earphone body includes an earbud and a rod connected to the earbud, and the end of the rod away from the earbud is provided with a charging plate that moves against the charging telescopic contact.
[0011] Preferably, the placement groove includes a plug groove and a rod groove communicating with the plug groove, the earplug is movably connected in the plug groove, the rod is movably connected in the rod groove, and the rebound mechanism is located on the lower side of the rod groove.
[0012] Preferably, the rebound mechanism includes an elastic element connected to the inner wall of the mounting cavity, a top seat disposed on the top of the elastic element and slidably connected to the lower side of the rod groove, and a limiting structure for limiting the displacement of the top seat. The top seat has a recessed hole that cooperates with the charging telescopic contact, and the top seat moves against the bottom of the rod.
[0013] Preferably, the limiting structure includes an ear plate fixed to the inner wall of the mounting cavity, a rotating rod rotatably connected to the ear plate, a connecting plate fixed to the rotating rod, and a limiting rod set on the top of the connecting plate. A torsion spring with its two ends connected to the ear plate and the connecting plate respectively is sleeved on the outer side of the rotating rod. A movable groove is provided on the top seat, and a guide plate and a guide block that move against the limiting rod are fixed in the movable groove.
[0014] Preferably, the guide plate divides the movable groove into a left cavity and a right cavity, the guide plate is inclinedly disposed in the movable groove, and the bottom end of the guide plate faces the right cavity.
[0015] Preferably, the bottom of the guide block has a left inclined surface and a right inclined surface, the lower end of the right inclined surface is located on the left side of the middle of the guide block, and the top of the guide block has a limiting groove that engages with the limiting rod.
[0016] Preferably, the charging case and the lid are magnetically attached, as are the earphone body and the top base.
[0017] Compared with the prior art, the present invention provides a wireless charging device for Bluetooth headsets, which has the following advantages:
[0018] This Bluetooth headset wireless charging device features a spring-loaded mechanism. By pressing the headset itself, users can place it for charging and for it to pop out automatically, making it convenient for them to grab. The spring-loaded mechanism has a simple structure and makes reasonable and full use of the space inside the charging case. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the structure of this utility model;
[0020] Figure 2 This is a cross-sectional structural diagram of the charging box of this utility model;
[0021] Figure 3 This is a schematic diagram of the external structure of the top seat of this utility model;
[0022] Figure 4 This is a structural schematic diagram of the top seat cross-section of this utility model;
[0023] Figure 5 This is a schematic diagram of the structure inside the movable groove of this utility model.
[0024] In the diagram: 1. Charging case; 101. Mounting cavity; 2. Case cover; 3. Earphone body; 301. Earplug; 302. Stem; 4. Protective shell; 5. Charging module; 501. Charging telescopic contact; 6. Placement slot; 601. Plug slot; 602. Stem slot; 7. Elastic element; 701. Top seat; 7011. Concave hole; 8. Ear plate; 801. Rotating rod; 802. Connecting plate; 803. Limiting rod; 804. Torsion spring; 9. Movable slot; 901. Guide plate; 902. Guide block; 9021. Limiting slot. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.
[0026] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are 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. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed", "equipped with", "sleeved / connected", "connected", etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.
[0028] like Figures 1 to 3As shown, this embodiment proposes a Bluetooth headset wireless charging device, including a charging case 1, a case cover 2 hinged to the charging case 1, and a headset body 3 placed inside the charging case 1, and further including:
[0029] The protective shell 4 is fixed inside the charging case 1. An installation cavity 101 is formed between the protective shell 4 and the inner wall of the charging case 1. A charging module 5 is provided in the installation cavity 101. The charging module 5 is connected to a charging telescopic contact 501 that is electrically connected to the earphone body 3.
[0030] Placement slot 6, which is opened inside the protective shell 4, is used to place the earphone body 3;
[0031] And a rebound mechanism, which is set in the mounting cavity 101, for ejecting the earphone body 3 from the placement slot 6 upwards;
[0032] Furthermore, the headphone body 3 includes an earbud 301 and a rod 302 connected to the earbud 301. The end of the rod 302 away from the earbud 301 is provided with a charging plate that moves against the charging telescopic contact 501.
[0033] Furthermore, the placement slot 6 includes a plug slot 601 and a rod slot 602 that communicates with the plug slot 601. The earplug 301 is movably connected in the plug slot 601, the rod 302 is movably connected in the rod slot 602, and the rebound mechanism is located on the lower side of the rod slot 602.
[0034] When not in use, the earphone body 3 is placed in the placement slot 6 and charged by contacting the charging tab with the charging telescopic contact 501. The rod body 302 contains components such as a battery and a wireless charging receiver module. The charging module 5 in the mounting cavity 101 should include components such as a battery and a wireless charging coil. All charging modules in the charging case 1 and the earphone body 3 are existing technologies and will not be described in detail here. When placed, the rod body 302 is placed in the rod slot 602 and contacts the rebound mechanism. By setting the rebound mechanism, the earphone body 3 can be placed for charging and automatically popped out by pressing the earphone body 3, which is convenient for users to grab. The rebound mechanism has a simple structure and can make reasonable and full use of the space structure inside the charging case 1.
[0035] like Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, in a preferred embodiment, based on the above method, the rebound mechanism further includes an elastic element 7 connected to the inner wall of the mounting cavity 101, a top seat 701 disposed on the top of the elastic element 7 and slidably connected to the lower side of the rod groove 602, and a limiting structure for limiting the displacement of the top seat 701. The top seat 701 has a recessed hole 7011 that cooperates with the charging telescopic contact 501, and the top seat 701 moves against the bottom of the rod body 302.
[0036] Furthermore, the limiting structure includes an ear plate 8 fixed to the inner wall of the mounting cavity 101, a rotating rod 801 rotatably connected to the ear plate 8, a connecting plate 802 fixed to the rotating rod 801, and a limiting rod 803 set on the top of the connecting plate 802. A torsion spring 804 with its two ends connected to the ear plate 8 and the connecting plate 802 respectively is sleeved on the outside of the rotating rod 801. A movable groove 9 is provided on the top seat 701. A guide plate 901 and a guide block 902 that move against the limiting rod 803 are fixed in the movable groove 9.
[0037] Furthermore, the guide plate 901 divides the movable groove 9 into a left cavity and a right cavity. The guide plate 901 is inclinedly disposed in the movable groove 9, with the bottom end of the guide plate 901 facing the right cavity.
[0038] Furthermore, the bottom of the guide block 902 is provided with a left inclined surface and a right inclined surface, the lower end of the right inclined surface is located on the left side of the middle of the guide block 902, and the top of the guide block 902 is provided with a limiting groove 9021 that engages with the limiting rod 803.
[0039] Specifically, when the earphone body 3 is placed in the placement slot 6 for charging, the bottom of the rod 302 touches the top of the top seat 701. At this time, the elastic element 7 has not yet been compressed, and the limiting rod 803 is placed under the guide block 902. Subsequently, the user's hand presses down on the top of the earphone body 3, causing the earphone body 3 to move downward as a whole. The bottom of the rod 302 presses down on the top seat 701, causing the top seat 701 to move downward under force. The limiting rod 803 moves upward relative to the top seat 701. Since the top of the limiting rod 803 is at the bottom of the right slope, the limiting rod 803 moves upward relative to the top seat 701. As the earphone slides down the right slope, the torsion spring 804 rotates. When the limiting rod 803 moves to the upper side of the guide block 902, the pressure on the earphone body 3 is released. Under the action of the torsion spring 804, the limiting rod 803 returns to its original position and deflects with the connecting plate 802. At the same time, the top seat 701 returns to its original position and moves upward, so that the limiting rod 803 is placed in the limiting groove 9021, preventing the top seat 701 from moving completely upward. At this time, the charging and placement of the earphone body 3 is realized (it should be noted that at this time, there is still a downward pressure space between the bottom of the earplug 301 and the inner wall of the plug groove 601).
[0040] When it is necessary to remove the earphone body 3 from the placement slot 6, the user presses the earphone body 3 again, and the earphone body 3 presses down on the top seat 701 again. At this time, when the limiting rod 803 moves upward relative to the top seat 701, it will enter the left cavity of the movable slot 9 with the cooperation of the guide plate 901 and the inner wall of the limiting slot 9021. Then, the downward pressure on the earphone body 3 is removed, and the top seat 701 returns to its original position and moves upward. Under the action of the torsion spring 804 and the elastic element 7, the limiting rod 803 returns to its initial position from the upper side of the left cavity, that is, the limiting rod 803 is under the guide block 902. At this time, the top seat 701 pushes the earphone body 3 upward from the placement slot 6 a certain distance, making it convenient for the user to take the earphone body 3 out.
[0041] like Figure 1 As shown, in a preferred embodiment, based on the above method, the charging case 1 and the lid 2 are magnetically connected, as are the earphone body 3 and the top base 701. This is existing technology in the field and will not be elaborated here. The advantages of the magnetic design include: automatic adsorption, which is very convenient to use; improved stability of the connection between the two; and improved user experience.
[0042] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A Bluetooth headset wireless charging device, comprising a charging case (1), a case lid (2) hinged to the charging case (1) via a hinge, and an earphone body (3) placed inside the charging case (1), characterized in that, Also includes: A protective shell (4) is fixed inside the charging box (1). An installation cavity (101) is formed between the protective shell (4) and the inner wall of the charging box (1). A charging module (5) is provided in the installation cavity (101). The charging module (5) is connected to a charging telescopic contact (501) that is electrically connected to the headphone body (3). Placement slot (6), which is opened inside the protective shell (4), is used to place the headphone body (3); And a rebound mechanism, which is disposed in the mounting cavity (101) for ejecting the earphone body (3) from the placement slot (6) upward.
2. The Bluetooth headset wireless charging device according to claim 1, characterized in that, The headphone body (3) includes an earbud (301) and a rod (302) connected to the earbud (301). The end of the rod (302) away from the earbud (301) is provided with a charging plate that moves against the charging telescopic contact (501).
3. The Bluetooth headset wireless charging device according to claim 2, characterized in that, The placement slot (6) includes a plug slot (601) and a rod slot (602) that communicates with the plug slot (601). The earplug (301) is movably connected in the plug slot (601), the rod (302) is movably connected in the rod slot (602), and the rebound mechanism is located on the lower side of the rod slot (602).
4. A Bluetooth headset wireless charging device according to claim 3, characterized in that, The rebound mechanism includes an elastic element (7) connected to the inner wall of the mounting cavity (101), a top seat (701) disposed on the top of the elastic element (7) and slidably connected to the lower side of the rod groove (602), and a limiting structure for limiting the displacement of the top seat (701). The top seat (701) has a recessed hole (7011) that cooperates with the charging telescopic contact (501). The top seat (701) moves against the bottom of the rod body (302).
5. A Bluetooth headset wireless charging device according to claim 4, characterized in that, The limiting structure includes an ear plate (8) fixed to the inner wall of the mounting cavity (101), a rotating rod (801) rotatably connected to the ear plate (8), a connecting plate (802) fixed to the rotating rod (801), and a limiting rod (803) set on the top of the connecting plate (802). A torsion spring (804) with its two ends connected to the ear plate (8) and the connecting plate (802) respectively is sleeved on the outside of the rotating rod (801). A movable groove (9) is opened on the top seat (701). A guide plate (901) and a guide block (902) are fixed in the movable groove (9) to move against the limiting rod (803).
6. A Bluetooth headset wireless charging device according to claim 5, characterized in that, The guide plate (901) divides the movable groove (9) into a left cavity and a right cavity. The guide plate (901) is inclined in the movable groove (9), and the bottom end of the guide plate (901) faces the right cavity.
7. A Bluetooth headset wireless charging device according to claim 5, characterized in that, The bottom of the guide block (902) is provided with a left inclined surface and a right inclined surface. The lower end of the right inclined surface is located on the left side of the middle part of the guide block (902). The top of the guide block (902) is provided with a limiting groove (9021) that engages with the limiting rod (803).
8. A Bluetooth headset wireless charging device according to claim 1, characterized in that, The charging case (1) and the lid (2) are magnetically attached, as are the earphone body (3) and the top base (701).
Citation Information
Patent Citations
Uncovering automatic lifting type wireless Bluetooth earphone charging device
CN112118505A