Charging box and earphone device

By using a special-shaped spring to drive the conduction or disconnection of the resisting part and the circuit trigger area in the TWS Bluetooth headset charging box, the problems of complex internal structure and cumbersome testing process of the existing charging box are solved, and a simpler assembly structure and flexible design are achieved.

CN115334403BActive Publication Date: 2025-04-04SHENZHEN HORN AUDIO
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Patent Information

Application Number
CN202211144712.1
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-09-20
Publication Date
2025-04-04
Estimated Expiration
2042-09-20

AI Technical Summary

Technical Problem

The internal assembly structure of the existing TWS Bluetooth headset charging box is complex, the testing process is cumbersome, and the design of the Hall switch circuit limits the design flexibility of the charging box.

Method used

The special-shaped spring is used to connect the upper cover of the charging box and the storage inner shell. The special-shaped spring drives the conduction or disconnection of the resisting part and the circuit trigger area, simplifying the internal structure and testing process of the charging box.

Benefits of technology

The internal assembly structure of the charging box is simplified and the testing process is simplified, while the design flexibility of the charging box is improved, avoiding considerations on the impact of the magnetic field.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention provides a charging box and an earphone device. The above-mentioned charging box includes a charging box lower cover, a receiving inner shell, a charging box upper cover, a charging control board and a special-shaped spring; the charging box lower cover is formed with a connecting installation groove and a fixed receiving groove; the receiving inner shell is located in the installation groove and connected to the charging box lower cover; the charging box upper cover is rotatably connected to the receiving inner shell, and the charging box upper cover is covered on the receiving inner shell; the charging control board is located in the fixed receiving groove and connected to the charging box lower cover, and the charging control board is provided with a circuit triggering area; the special-shaped spring includes a fixed part, a pivot part and a contact part, the fixed part is connected to the contact part through the pivot part, the fixed part is connected to the charging box upper cover, and the pivot part movably contacts the receiving inner shell. Compared with the structure of the control switch of the Hall switch circuit of the traditional charging box, the internal assembly structure of the charging box is simpler, and there is no need to increase the test station of the Hall module, which greatly simplifies the test process of the charging box.
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Description

Technical Field

[0001] The present invention relates to the technical field of earphones, and in particular to a charging box and an earphone device. Background Art

[0002] For TWS Bluetooth headsets, the headset and the portable charging box have become the industry's standard combination. The charging box controls two different working states of the headset when the lid is open or closed. When the charging box is opened, the charging box controls the headset to maintain the communication state; when the charging box is closed, the charging box controls the headset to maintain the sleep or charging state. The two different working states of the headset are controlled by the control circuit of the charging box, namely the Hall switch circuit.

[0003] The Hall switch circuit of the charging box includes the Hall switch module circuit and the basic hardware functional requirements of the trigger magnetic field. In addition, considering the appearance of the product, it is necessary to add a trigger magnet to cover the ugliness and avoid the problem of the magnet being directly exposed in the visible area of ​​the appearance surface, which makes the internal assembly structure of the charging box more complicated. At the same time, a test station for the Hall module needs to be added during the finished product testing, even if the testing process of the charging box is more complicated. Summary of the invention

[0004] The purpose of the present invention is to overcome the deficiencies in the prior art and provide a charging box and earphone device with a simpler assembly structure and a simpler testing process.

[0005] The objective of the present invention is achieved through the following technical solutions:

[0006] A charging box, comprising:

[0007] The lower cover of the charging box is formed with a connecting installation groove and a fixed receiving groove;

[0008] An accommodating inner shell is located in the mounting groove and connected to the lower cover of the charging box;

[0009] The charging box upper cover is rotatably connected to the receiving inner shell, and the charging box upper cover is covered on the receiving inner shell;

[0010] A charging control board is located in the fixed receiving groove and connected to the lower cover of the charging box, and the charging control board is provided with a loop triggering area;

[0011] The special-shaped spring includes a fixed part, a pivot part and a resistance part, wherein the fixed part is connected to the resistance part through the pivot part, the fixed part is connected to the upper cover of the charging box, the pivot part movably abuts against the inner housing shell, and the resistance part is used to abut against the circuit triggering area when the upper cover of the charging box is closed on the inner housing shell, so that the control circuit of the charging control board is turned on.

[0012] In one of the embodiments, the lower cover of the charging box is also formed with a avoidance groove connected to the installation groove, and the upper cover of the charging box is located in the avoidance groove and is rotatably connected to the accommodating inner shell.

[0013] In one embodiment, the charging box also includes a rotating shaft, the upper cover of the charging box is connected to the rotating shaft, the receiving inner shell is provided with a rotating hole connected to the mounting groove, and the rotating shaft is located in the rotating hole and is rotatably connected to the receiving inner shell.

[0014] In one of the embodiments, the upper cover of the charging box is provided with a boss portion, the boss portion is provided with a through hole, the rotating shaft is passed through the through hole and connected to the boss portion.

[0015] In one of the embodiments, the lower cover of the charging box is formed with an avoidance slope on the inner wall of the avoidance groove.

[0016] In one embodiment, the receiving inner shell is provided with a rotation slot, and the pivoting portion is located in the rotation slot and is movably connected to the receiving inner shell.

[0017] In one embodiment, the loop trigger area is provided with a first contact piece and a second contact piece, there is a gap between the first contact piece and the second contact piece, and the contact portion is used to respectively contact the first contact piece and the second contact piece when the charging box cover is rotated to a predetermined angle relative to the containing inner shell.

[0018] In one of the embodiments, the receiving inner shell is provided with a movable limiting groove, the movable limiting groove is communicated with the installation groove and the fixed receiving groove respectively, and the abutment portion is located in the movable limiting groove and moves.

[0019] In one embodiment, the fixing portion, the pivoting portion and the resisting portion are an integrally formed structure.

[0020] An earphone device comprises an earphone body and a charging box as described in any of the above embodiments, wherein the inner housing is formed with an earphone storage groove, the earphone body is located in the earphone storage groove, and the charging control board is used to charge the earphone body.

[0021] Compared with the prior art, the present invention has at least the following advantages:

[0022] 1. In the above-mentioned charging box, since the fixing part is connected to the upper cover of the charging box, the pivoting part movably abuts against the receiving inner shell, so that the pivoting part drives the abutting part to be in a non-abutting or abutting state with the circuit triggering area, even if the circuit triggering area is disconnected or connected;

[0023] 2. Since the fixing part is connected to the contact part through the pivot part, the contact part contacts the circuit triggering area when the upper cover of the charging box is closed on the receiving inner shell, so that the control circuit of the charging control board is turned on to form a complete closed circuit. At this time, the earphone body is controlled to enter the communication state, so that the external mobile Bluetooth device can find the earphone body and pair with the earphone body; when the charging box is opened on the receiving inner shell, the contact part leaves the circuit triggering area, that is, the contact part does not contact the circuit triggering area, so that the circuit triggering area is in an open circuit state, and the earphone body is controlled to enter the dormant state, so that the external mobile Bluetooth device cannot find the earphone body;

[0024] 3. The above-mentioned charging box is connected to the upper cover of the charging box and the containing inner shell respectively through special-shaped springs, so that the upper cover of the charging box can be closed or opened on the containing inner shell, thereby realizing the conduction or disconnection of the circuit triggering area. Compared with the control switch structure of the Hall switch circuit of the traditional charging box, the internal assembly structure of the charging box is simpler, and there is no need to add a test station for the Hall module, which greatly simplifies the test process of the charging box. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0026] Figure 1 is a schematic diagram of a charging box according to an embodiment;

[0027] Figure 2 for Figure 1 A three-dimensional cutaway schematic diagram of the charging box shown;

[0028] Figure 3 for Figure 1 A schematic diagram of another state of the charging box shown;

[0029] Figure 4 for Figure 1 A partial schematic diagram of the charging box shown;

[0030] Figure 5 for Figure 1 A schematic diagram of the structure of the special-shaped spring of the charging box shown;

[0031] Figure 6 for Figure 2 An exploded schematic diagram of the special-shaped spring of the charging box shown;

[0032] Figure 7 for Figure 4 A schematic diagram of another perspective of the charging box shown;

[0033] Figure 8 for Figure 1 Schematic diagram of the charging control board of the charging box shown. DETAILED DESCRIPTION

[0034] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thoroughly understood.

[0035] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0036] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0037] The present application provides a charging box comprising a charging box lower cover, a receiving inner shell, a charging box upper cover, a charging control board and a special-shaped spring; the charging box lower cover is formed with a connected installation groove and a fixed receiving groove; the receiving inner shell is located in the installation groove and connected to the charging box lower cover; the charging box upper cover is rotatably connected to the receiving inner shell, and the charging box upper cover covers the receiving inner shell; the charging control board is located in the fixed receiving groove and connected to the charging box lower cover, and the charging control board is provided with a circuit triggering area; the special-shaped spring comprises a fixing part, a pivoting part and a resisting part, the fixing part is connected to the resisting part via the pivoting part, the fixing part is connected to the charging box upper cover, the pivoting part movably resists the receiving inner shell, and the resisting part is used to resist the circuit triggering area when the charging box upper cover covers the receiving inner shell, so that the control circuit of the charging control board is turned on.

[0038] In the above-mentioned charging box, since the fixed part is connected to the upper cover of the charging box, the pivot part movably abuts against the receiving inner shell, so that the pivot part drives the resistance part to be in non-contact or conflict state with the circuit triggering area, even if the circuit triggering area is disconnected or connected; since the fixed part is connected to the resistance part through the pivot part, the resistance part abuts against the circuit triggering area when the upper cover of the charging box is closed on the receiving inner shell, so that the control circuit of the charging control board is turned on to form a complete closed circuit, and the earphone body is controlled to enter the communication state at this time, so that the external mobile Bluetooth device can find the earphone body and pair and connect with the earphone body; the resistance part is away from the receiving inner shell when the charging box is opened. Open in the loop trigger area, that is, the resistance part does not resist in the loop trigger area, so that the loop trigger area is in an open circuit state. At this time, the earphone body is controlled to enter a sleep state, so that the external mobile Bluetooth device cannot find the earphone body; the above-mentioned charging box is respectively connected to the charging box cover and the receiving inner shell through special-shaped springs, so that the charging box cover is closed or opened on the receiving inner shell, thereby realizing the conduction or disconnection of the loop trigger area. Compared with the control switch structure of the Hall switch circuit of the traditional charging box, the internal assembly structure of the charging box is simpler, and there is no need to increase the test station of the Hall module, which greatly simplifies the test process of the charging box.

[0039] In order to better understand the technical solutions and beneficial effects of the present application, the present application is further described in detail below in conjunction with specific embodiments:

[0040] like Figures 1 to 3 As shown, a charging box 10 of an embodiment includes a charging box lower cover 100, a receiving inner shell 200, a charging box upper cover 300, a charging control board 400 and a special-shaped spring 500. The charging box lower cover 100 is formed with a connecting mounting groove 102 and a fixed receiving groove 104; the receiving inner shell 200 is located in the mounting groove 102 and connected to the charging box lower cover 100; the charging box upper cover 300 is rotatably connected to the receiving inner shell 200, and the charging box upper cover 300 covers the receiving inner shell 200. The charging control board 400 is located in the fixed receiving groove 104 and connected to the charging box lower cover 100. In this embodiment, the charging control board 400 is located below the charging box upper cover 300.

[0041] See also Figure 4 and Figure 5 In one embodiment, the special-shaped spring 500 includes a fixing portion 510, a pivoting portion 520 and a contact portion 530, wherein the fixing portion 510 is connected to the contact portion 530 via the pivoting portion 520. The fixing portion 510 is connected to the charging box upper cover 300, and the pivoting portion 520 is movably contacted with the receiving inner shell 200. In this embodiment, the pivoting portion 520 is rotatably contacted with the receiving inner shell 200. See also Figure 6In the present embodiment, a through hole 301 is formed on the upper cover 300 of the charging box, and the fixing portion 510 is located in the through hole 301 and connected to the upper cover 300 of the charging box.

[0042] like Figure 2 and Figure 4 As shown, further, the charging control board 400 is provided with a circuit triggering area 402, and the resistance part 530 is used to resist against the circuit triggering area 402 when the charging box upper cover 300 is covered on the receiving inner shell 200, so that the control circuit of the charging control board 400 is turned on, and then the charging control board 400 charges the earphone body. In this embodiment, when the charging box cover 300 rotates relative to the containing inner shell 200 toward the direction of covering the containing inner shell 200, the pivot portion 520 drives the resistance portion 530 to contact the circuit triggering area 402, so that the control circuit of the charging control board 400 is turned on, and the earphone body is controlled to enter the communication state at this time, so that the external mobile Bluetooth device can find the earphone body and pair with the earphone body; when the charging box cover 300 rotates relative to the containing inner shell 200 toward the direction of opening the containing inner shell 200, the pivot portion 520 drives the resistance portion 530 to leave the circuit triggering area 402, that is, the resistance portion 530 does not contact the circuit triggering area 402, so that the control circuit of the charging control board 400 is disconnected, and the earphone body is controlled to enter the sleep state at this time, so that the external mobile Bluetooth device cannot find the earphone body.

[0043] It can be understood that the special-shaped spring 500 not only plays the role of controlling the conduction or disconnection of the circuit trigger area 402, that is, whether the charging control board 400 charges the earphone body, but also plays the role of saving effort during the rotation of the charging box cover relative to the receiving inner shell, that is, the charging box cover and the receiving inner shell are lighter during the rotation process. Compared with the traditional charging box 10, there is no need to add a Hall module, which makes the assembly structure of the charging box 10 of the present application simpler, thereby simplifying the manufacturing process of the charging box 10.

[0044] In the above-mentioned charging box 10, since the fixing portion 510 is connected to the charging box cover 300, the pivoting portion 520 movably abuts against the receiving inner shell 200, so that the pivoting portion 520 drives the contact portion 530 to be in a non-contact or conflicting state with the circuit triggering area 402, even if the circuit triggering area 402 is disconnected or connected; since the fixing portion 510 is connected to the contact portion 530 through the pivoting portion 520, the contact portion 530 abuts against the circuit triggering area 402 when the charging box cover 300 is covered on the receiving inner shell 200, so that the control circuit of the charging control board 400 is turned on to form a complete closed circuit, and the earphone body is controlled to enter the communication state at this time, so that the external mobile Bluetooth device can find the earphone body and pair and connect with the earphone body; the contact portion 530 is opened on the receiving inner shell 200 when the charging box 10 is opened. When the charging box 10 leaves the loop trigger area 402, that is, the abutment portion 530 does not abut against the loop trigger area 402, so that the loop trigger area 402 is in an open circuit state. At this time, the earphone body is controlled to enter a sleep state, so that the external mobile Bluetooth device cannot find the earphone body; the above-mentioned charging box 10 is respectively connected to the charging box cover 300 and the receiving inner shell 200 through the special-shaped spring 500, so that the charging box cover 300 is closed or opened on the receiving inner shell 200, thereby realizing the conduction or disconnection of the loop trigger area 402. Compared with the control switch structure of the Hall switch circuit of the traditional charging box 10, the internal assembly structure of the charging box 10 is simpler, and there is no need to increase the test station of the Hall module, which greatly simplifies the test process of the charging box 10 and thus simplifies the manufacturing process of the charging box 10.

[0045] It is understandable that the traditional charging box, by designing the Hall device as an inductive switch that is sensitive to the magnetic field, will constrain the layout of the internal magnetic devices, such as the magnets that attract the upper and lower covers of the charging box, the magnets that attract the earphones and the charging box, the influence of the magnetic field generated during the operation of the wireless charging coil, the inductor and other functional circuits, making the design flexibility of the charging box poor. However, this application does not need to add a Hall module, and there is no need to consider the influence of the magnetic field during the design, making the design flexibility of the charging box better.

[0046] Furthermore, the fixing portion 510, the pivoting portion 520 and the abutting portion 530 are an integrally formed structure, so that the fixing portion 510, the pivoting portion 520 and the abutting portion 530 are reliably fixedly connected, and the special-shaped spring has good structural strength. It is understood that in other embodiments, the fixing portion 510, the pivoting portion 520 and the abutting portion 530 can also be formed separately and fixed by welding.

[0047] See also Figure 4 and Figure 5 Furthermore, the resistance part 530 is a bent structure, and there is an angle between the plane where the resistance part is bent and the extension direction of the pivot part 520, so that the resistance part can be better driven to conflict with the circuit triggering area during the rotation of the charging box cover relative to the receiving inner shell.

[0048] See also Figure 4 and Figure 5 Furthermore, the special-shaped spring 500 also includes a first torsion elastic portion 540 and a second torsion elastic portion 550, the two ends of the first torsion elastic portion 540 are respectively connected to the fixing portion 510 and the pivoting portion 520, and the two ends of the second torsion elastic portion 550 are respectively connected to the pivoting portion 520 and the abutting portion 530, and the first torsion elastic portion 540 and the second torsion elastic portion 550 are both bent elastic rod structures, so that the fixing portion 510 is better elastic when the charging box upper cover 300 rotates relative to the receiving inner shell 200. The pivoting part 520 is driven to move, and when the charging box cover 300 rotates relative to the receiving inner shell 200, the first torsion elastic part 540 and the second torsion elastic part 550 are elastically deformed, so that the resistance encountered by the pivoting part 520 during the rotation relative to the receiving inner shell 200 is small. At the same time, since the resistance encountered by the charging box cover during the rotation relative to the receiving inner shell is small, the abutting part 530 can better abut against the circuit triggering area 402 when the charging box cover 300 is covered on the receiving inner shell 200. Furthermore, the first torsion elastic part 540 includes a first spiral part 542 and a second spiral part 544, and the two ends of the first spiral part 542 are respectively connected to the fixing part 510 and one end of the second spiral part 544, and the other end of the second spiral part 544 is connected to the pivoting part 520, so that the two ends of the first torsion elastic part 540 are respectively connected to the fixing part 510 and the pivoting part 520. In this embodiment, the spiral direction of the first spiral portion 542 is opposite to the spiral direction of the second spiral portion 544, so that the first torsional elastic portion 540 has better elasticity during rotation, so that the special-shaped spring 500 has better elastic potential energy when the charging box cover 300 rotates relative to the containing inner shell 200.

[0049] See also Figure 4 and Figure 5, further, the second torsion elastic part 550 is bent, and the extension directions of the two ends of the second torsion elastic part 550 are not coplanar, so that when the upper cover of the charging box rotates relative to the receiving inner shell, the pivoting part 520 can be better driven to rotate relative to the receiving inner shell 200 on the upper cover 300 of the charging box. In this embodiment, the extension directions of the two ends of the second torsion elastic part 550 are not coplanar and perpendicular to each other. Further, the second torsion elastic part 550 includes a first bending member 552 and a second bending member 554 connected to each other, one end of the first bending member 552 away from the second bending member 554 is connected to the pivoting part 520, and one end of the second bending member 554 away from the first bending member 552 is connected to the abutting part 530, so that the pivoting part 520 is elastically connected to the abutting part 530, and at the same time, when the pivoting part 520 is movably connected relative to the receiving inner shell 200, the abutting part 530 can be better abutted or not abutted against the circuit triggering area 402. In this embodiment, the bending plane where the first bending member 552 is located and the bending plane where the second bending member 554 is located are not in the same plane, that is, there is an angle between the bending plane where the first bending member 552 is located and the bending plane where the second bending member 554 is located. Specifically, the bending plane where the first bending member 552 is located and the bending plane where the second bending member 554 is located are perpendicular to each other. Furthermore, the connection between the first bending member 552 and the second bending member 554 is bent at a preset angle, so that when the pivoting portion 520 drives the abutting portion 530 to abut against the circuit triggering area 402, it has better elasticity, and coupled with the deformation potential energy of the abutting portion 530 itself, the special-shaped spring 500 can be more elastically abutted against the circuit triggering area 402, ensuring that the special-shaped spring 500 is reliably electrically connected to the circuit triggering area 402. In this embodiment, the preset angle is 110° to 170°. Specifically, the preset angle is 130°.

[0050] See also Figure 6 In one embodiment, the charging box lower cover 100 is also formed with an avoidance groove 106 connected to the installation groove 102, and the charging box upper cover 300 is located in the avoidance groove 106 and is rotatably connected to the receiving inner shell 200, so as to avoid interference between the charging box upper cover 300 and the charging box lower cover 100 during the rotation relative to the receiving inner shell 200, so that the charging box upper cover 300 and the receiving inner shell 200 can rotate reliably.

[0051] See also Figure 6 In one embodiment, the charging box 10 also includes a rotating shaft 600, the charging box upper cover 300 is connected to the rotating shaft 600, the receiving inner shell 200 is provided with a rotating hole 202 connected to the mounting groove 102, and the rotating shaft 600 is located in the rotating hole 202 and is rotatably connected to the receiving inner shell 200, so that the charging box upper cover 300 and the receiving inner shell 200 are reliably rotatably connected.

[0052] See also Figure 6 In one embodiment, the charging box cover 300 is provided with a boss portion 310, and the boss portion 310 is provided with a through hole 312. The rotating shaft 600 is passed through the through hole 312 and connected to the boss portion 310, so that the rotating shaft 600 is connected to the charging box cover 300. In this embodiment, the rotating shaft 600 is interference-connected with the charging box cover 300, so that the rotating shaft 600 and the charging box cover 300 are reliably fixedly connected. It can be understood that in other embodiments, the rotating shaft 600 can also be interference-connected with the receiving inner shell 200, and the rotating shaft 600 is rotatably connected to the charging box cover 300.

[0053] See also Figure 6 In one embodiment, the charging box lower cover 100 is formed with an avoidance slope 107 on the inner wall of the avoidance groove 106, so that the charging box lower cover 100 is less likely to interfere with the charging box lower cover 100 when rotating relative to the receiving inner shell 200.

[0054] See also Figure 6 In one embodiment, the receiving inner shell 200 is provided with a rotation slot 203, and the pivoting portion 520 is located in the rotation slot 203 and is movably engaged with the receiving inner shell 200, so that the structure of the movably engaged receiving inner shell 200 and the pivoting portion 520 is simpler.

[0055] See also Figure 7 and Figure 8 In one embodiment, the loop trigger area 402 is provided with a first contact piece 4022 and a second contact piece 4024, and there is a gap between the first contact piece 4022 and the second contact piece 4024. The contact portion 530 is used to respectively contact the first contact piece 4022 and the second contact piece 4024 when the charging box cover 300 is rotated to a predetermined angle relative to the receiving inner shell 200.

[0056] See also Figure 5 , Figure 7 and Figure 8Furthermore, the resistance part 530 includes a first spiral resistance part 532, an arc-shaped connection part 534 and a second spiral resistance part 536 which are connected in sequence, the end of the first spiral resistance part 532 away from the arc-shaped connection part 534 is connected to the pivot part 520, the first spiral resistance part 532 resists against the first resistance piece 4022, and the second spiral resistance part 536 resists against the second resistance piece 4024, so that the resistance part 530 resists against the first resistance piece 4022 and the second resistance piece 4024 respectively when the charging box cover 300 is rotated to a predetermined angle relative to the containing inner shell 200. In this embodiment, the spiral direction of the first spiral contact portion 532 is opposite to the spiral direction of the second spiral contact portion 536, so that the contact portion 530 has better elastic potential energy when it contacts the first contact piece 4022 and the second contact piece 4024, thereby enabling the contact portion 530 to better elastically contact the first contact piece 4022 and the second contact piece 4024, thereby achieving reliable contact and conduction between the contact portion 530 and the circuit trigger area 402.

[0057] See also Figure 5 , Figure 7 and Figure 8 Furthermore, the first contact piece 4022 and the second contact piece 4024 are both metal PADs, i.e., metal conductive pads, so that the contact portion 530 can better conduct electricity and contact the loop trigger area 402. Furthermore, the first contact piece 4022 is provided with a first contact concave arc surface, and the first spiral contact portion 532 contacts the first contact concave arc surface, so that the first spiral contact portion 532 can better contact the first contact piece 4022. The second contact piece 4024 is provided with a second contact concave arc surface, and the second spiral contact portion 536 contacts the second contact concave arc surface, so that the second spiral contact portion 536 can better contact the second contact piece 4024.

[0058] See also Figure 5 , Figure 7 and Figure 8 In one embodiment, the receiving inner shell 200 is provided with a movable limiting groove 206, and the movable limiting groove is respectively connected to the installation groove 102 and the fixed receiving groove 104, and the interference part 530 is located in the movable limiting groove and moves, so as to avoid the problem of mechanical interference of the interference part 530 when the charging box cover 300 rotates relative to the receiving inner shell 200, so that the interference part 530 can be reliably triggered or not triggered in the circuit triggering area 402.

[0059] The present application also provides an earphone device, comprising an earphone body and a charging box 10 as described in any of the above embodiments, wherein the receiving inner shell 200 is formed with an earphone receiving groove, the earphone body is located in the earphone receiving groove, and the charging control board 400 is used to wirelessly charge the earphone body. Further, the lower cover of the charging box is formed with a connecting mounting groove and a fixed receiving groove; the receiving inner shell is located in the mounting groove and connected to the lower cover of the charging box; the upper cover of the charging box is rotatably connected to the receiving inner shell, and the upper cover of the charging box is covered on the receiving inner shell; the charging control board is located in the fixed receiving groove and connected to the lower cover of the charging box, and the charging control board is provided with a circuit triggering area; the special-shaped spring includes a fixed part, a pivoting part and a resisting part, the fixed part is connected to the resisting part through the pivoting part, the fixed part is connected to the upper cover of the charging box, the pivoting part movably abuts against the receiving inner shell, and the abutting part is used to abut against the circuit triggering area when the upper cover of the charging box is covered on the receiving inner shell, so that the control circuit of the charging control board is turned on.

[0060] In the above-mentioned earphone device, since the fixed part is connected to the upper cover of the charging box, the pivot part movably abuts against the receiving inner shell, so that the pivot part drives the resistance part to be in non-contact or conflict state with the circuit triggering area, even if the circuit triggering area is disconnected or connected; since the fixed part is connected to the resistance part through the pivot part, the resistance part abuts against the circuit triggering area when the upper cover of the charging box is closed on the receiving inner shell, so that the control circuit of the charging control board is connected to form a complete closed circuit, and the earphone body is controlled to enter the communication state at this time, so that the external mobile Bluetooth device can find the earphone body and pair with the earphone body; the resistance part leaves the circuit triggering area when the charging box is opened on the receiving inner shell, that is, the resistance part does not abut against the circuit triggering area, The loop trigger area is in an open-circuit state, and the earphone body is controlled to enter a dormant state at this time, so that the external mobile Bluetooth device cannot find the earphone body; the above-mentioned charging box is connected to the charging box cover and the receiving inner shell respectively through special-shaped springs, so that the charging box cover is closed or opened on the receiving inner shell, thereby realizing the conduction or disconnection of the loop trigger area. Compared with the control switch structure of the Hall switch circuit of the traditional charging box, the internal assembly structure of the charging box is simpler, and there is no need to increase the test station of the Hall module, which greatly simplifies the test process of the charging box; the above-mentioned charging box does not need to be equipped with a Hall module, and there is no need to consider the influence of the magnetic field during design, so that the design flexibility of the charging box is better.

[0061] like Figure 2 As shown, further, the lower cover 100 of the charging box is provided with a charging socket 101, and the charging control board 400 is provided with a charging interface 401, which is arranged toward the charging socket, so that the charging box 10 can better connect to the outside world for power, and thus the charging box 10 can reliably charge the earphone body.

[0062] Compared with the prior art, the present invention has at least the following advantages:

[0063] 1. In the above-mentioned charging box, since the fixing part is connected to the upper cover of the charging box, the pivoting part movably abuts against the receiving inner shell, so that the pivoting part drives the abutting part to be in a non-abutting or abutting state with the circuit triggering area, even if the circuit triggering area is disconnected or connected;

[0064] 2. Since the fixing part is connected to the contact part through the pivot part, the contact part contacts the circuit triggering area when the upper cover of the charging box is closed on the receiving inner shell, so that the control circuit of the charging control board is turned on to form a complete closed circuit. At this time, the earphone body is controlled to enter the communication state, so that the external mobile Bluetooth device can find the earphone body and pair with the earphone body; when the charging box is opened on the receiving inner shell, the contact part leaves the circuit triggering area, that is, the contact part does not contact the circuit triggering area, so that the circuit triggering area is in an open circuit state, and the earphone body is controlled to enter the dormant state, so that the external mobile Bluetooth device cannot find the earphone body;

[0065] 3. The above-mentioned charging box is connected to the upper cover of the charging box and the receiving inner shell respectively through the special-shaped spring, so that the upper cover of the charging box is closed or opened on the receiving inner shell, thereby realizing the conduction or disconnection of the circuit triggering area. Compared with the control switch structure of the Hall switch circuit of the traditional charging box, the internal assembly structure of the charging box is simpler, and there is no need to increase the test station of the Hall module, which greatly simplifies the test process of the charging box;

[0066] 4. The above-mentioned charging box does not need to be equipped with a Hall module, and there is no need to consider the influence of the magnetic field during design, which makes the design flexibility of the charging box better.

[0067] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A charging box, characterized in that: include: The lower cover of the charging box is formed with a connecting installation groove and a fixed receiving groove; An accommodating inner shell is located in the mounting groove and connected to the lower cover of the charging box; The charging box upper cover is rotatably connected to the receiving inner shell, and the charging box upper cover is covered on the receiving inner shell; A charging control board is located in the fixed receiving groove and connected to the lower cover of the charging box, and the charging control board is provided with a loop triggering area; The special-shaped spring comprises a fixing part, a pivoting part and a resisting part, wherein the fixing part is connected to the resisting part through the pivoting part, the fixing part is connected to the upper cover of the charging box, the pivoting part movably resists the inner housing, and the resisting part is used to resist the circuit triggering area when the upper cover of the charging box is covered on the inner housing, so that the control circuit of the charging control board is turned on; The loop triggering area is provided with a first contact piece and a second contact piece, and there is a gap between the first contact piece and the second contact piece. The contact part is used to respectively contact the first contact piece and the second contact piece when the charging box cover is rotated to a predetermined angle relative to the containing inner shell.

2. The charging box according to claim 1, characterized in that: The lower cover of the charging box is also formed with a avoidance groove connected to the installation groove, and the upper cover of the charging box is located in the avoidance groove and is rotatably connected to the accommodating inner shell.

3. The charging box according to claim 2, characterized in that: The charging box also includes a rotating shaft, the charging box upper cover is connected to the rotating shaft, the receiving inner shell is provided with a rotating hole connected to the mounting groove, the rotating shaft is located in the rotating hole and is rotatably connected to the receiving inner shell.

4. The charging box according to claim 3, characterized in that: The upper cover of the charging box is provided with a boss portion, the boss portion is provided with a through hole, the rotating shaft is passed through the through hole and connected to the boss portion.

5. The charging box according to claim 2, characterized in that: The lower cover of the charging box is formed with an avoidance inclined surface on the inner wall of the avoidance groove.

6. The charging box according to claim 1, characterized in that: The receiving inner shell is provided with a rotation slot, and the pivoting portion is located in the rotation slot and is movably connected to the receiving inner shell.

7. The charging box according to claim 1, characterized in that: The receiving inner shell is provided with a movable limiting groove, the movable limiting groove is communicated with the installation groove and the fixed receiving groove respectively, and the abutment portion is located in the movable limiting groove and moves.

8. The charging box according to claim 1, characterized in that: The fixing portion, the pivoting portion and the resisting portion are an integrally formed structure.

9. An earphone device, characterized in that: It comprises an earphone body and a charging box as described in any one of claims 1 to 8, the inner housing is formed with an earphone storage groove, the earphone body is located in the earphone storage groove, and the charging control board is used to charge the earphone body.

Citation Information

Patent Citations

  • Charging box and earphone device

    CN209462047U

  • Wireless earphone charging box

    CN212085837U