Charging structure and wireless earphone

Abstract

The invention discloses a charging structure and a wireless earphone, and relates to the technical field of wireless earphone charging. The charging structure comprises an insulating body, two charging terminals and two connecting pieces, a containing groove is formed in the top face of the insulating body, and one end of a battery cell is inserted into the containing groove; the two charging terminals are arranged in the insulating body, each charging terminal comprises a contact part and a welding part, the contact parts are exposed out of the insulating body, and the welding parts are provided with welding bulges; each connecting piece comprises a connecting section and a lantern ring, a welding hole is formed in each lantern ring, the lantern rings of the two connecting pieces are respectively arranged on the corresponding welding bulges in a sleeving manner through the welding holes and are fixedly welded, and the connecting sections of the two connecting pieces are respectively connected with the positive electrode and the negative electrode of the battery cell. The charging structure is convenient to weld and position and high in welding stability.

Description

Technical Field

[0001] The present invention relates to the technical field of wireless headset charging, and in particular to a charging structure and a wireless headset. Background Art

[0002] Headphones are an audio conversion unit that receives electrical signals from a media player or receiver and converts them into audible sound waves using a speaker close to the ear. In order to be easy to carry and use, wireless headphones have gradually become the mainstream choice of people.

[0003] Wireless earphones form a signal transmission path through a wireless communication protocol, and wireless earphones usually need to be used together with a charging case. The charging seat structure of existing wireless earphones is set at the bottom of the wireless earphones, and the terminals of the charging structure need to be welded with connecting wires to connect the positive and negative electrodes of the battery cell. However, the existing terminals and connecting wires are connected point-to-point by one end of the connecting wire and one end of the terminal, or by one end of the connecting wire and one side of the terminal. The welding stability is poor and the yield is low. Summary of the invention

[0004] The purpose of the present invention is to provide a charging structure and a wireless headset, which are convenient for welding positioning and have high welding stability.

[0005] To achieve this object, the present invention adopts the following technical solutions:

[0006] A charging structure, comprising:

[0007] An insulating body, wherein a receiving groove is formed on the top surface of the insulating body, and one end of the battery cell is inserted into the receiving groove;

[0008] Two charging terminals, both disposed in the insulating body, the charging terminals comprising a contact portion and a welding portion, the contact portion being exposed outside the insulating body, and the welding portion being provided with a welding protrusion;

[0009] Two connectors, the connectors include a connecting section and a ring, the ring is provided with a welding hole, the rings of the two connectors are respectively sleeved on the corresponding welding protrusions through the welding holes and welded and fixed, and the connecting sections of the two connectors are respectively connected to the positive and negative electrodes of the battery cell.

[0010] As an optional solution of the above-mentioned charging structure, the charging structure further includes flux, and the flux is sleeved on the welding protrusion and fixedly connected to the ring.

[0011] As an optional solution to the above-mentioned charging structure, the connecting part also includes an insulating outer skin, which covers the connecting section and the ring, and a limiting hole is formed in the insulating outer skin. The welding hole is located in the limiting hole, and the flux is located in the limiting hole and fixedly connected to the ring.

[0012] As an optional solution to the above charging structure, along the direction in which the welding protrusion is inserted into the welding hole, a projection of a portion of the welding portion is located outside the welding hole.

[0013] As an optional solution of the above charging structure, the contact portion is provided with a plurality of convex strips, and the plurality of convex strips are all clamped and fixed to the insulating body.

[0014] As an optional solution of the above charging structure, the welding portion is provided with a fixing hole, and the insulating body includes a fixing protrusion, and the fixing protrusion is passed through the fixing hole to fix the welding portion.

[0015] As an optional solution to the above-mentioned charging structure, the charging terminal also includes a connecting portion, two ends of which are respectively connected to the contact portion and the welding portion, and the connecting portion includes a plurality of connecting sub-segments connected in sequence, and the connecting sub-segments at two adjacent ends are arranged at an angle.

[0016] As an optional solution of the above charging structure, the contact portion is provided with a clamping groove, and the insulating body is provided with a clamping portion, and the clamping portion is clamped and matched with the clamping groove.

[0017] As an optional solution of the above charging structure, the connection position between the connecting portion and the contact portion is located in the clamping groove.

[0018] A wireless headset comprises the charging structure, and also comprises a shell, a battery cell and a speaker. The shell is provided with a listening hole and a connecting hole, the charging structure closes the connecting hole, the speaker and the battery cell are arranged in the shell, the speaker is electrically connected to the battery cell, and the speaker can play sound through the listening hole.

[0019] Beneficial effects of the present invention:

[0020] The present invention provides a charging structure and a wireless headset. In the charging structure, since both charging terminals have welding protrusions, before welding, the sleeve ring of the connector can be sleeved on the corresponding welding protrusion, and the welding protrusion can support and position the connector through the sleeve ring, thereby ensuring the relative stability of the position between the charging terminal and the connector, and also eliminating the structure for fixing the relative position between the charging terminal and the connector, which is convenient for welding positioning and has high welding stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the charging structure provided by the present invention;

[0022] Figure 2 is an exploded diagram of the charging structure provided by the present invention;

[0023] Figure 3 It is a schematic diagram of the structure of the charging terminal and the connector provided by the present invention;

[0024] Figure 4 It is a structural schematic diagram of the insulating body provided by the present invention;

[0025] Figure 5 is a cross-sectional view of a charging terminal and a connector provided by the present invention;

[0026] Figure 6 It is a structural schematic diagram of the charging terminal provided by the present invention.

[0027] In the figure:

[0028] 1. Insulating body; 11. Accommodating groove; 12. Fixing protrusion; 13. Clamping part; 14. Side wall; 141. Bottom ring; 142. Side wall; 143. Groove; 15. Clamping groove;

[0029] 2. Battery cells;

[0030] 3. Charging terminal; 31. Contact portion; 311. Snap-in groove; 32. Welding portion; 321. Fixing hole; 33. Welding protrusion; 34. Connecting portion; 341. Connecting sub-segment; 35. Raised strip;

[0031] 4. Connecting piece; 41. Connecting section; 42. Ring; 421. Welding hole; 43. Insulating outer skin; 431. Limiting hole;

[0032] 5. Flux;

[0033] 6. Support block; 61. Clamping ramp. DETAILED DESCRIPTION

[0034] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0035] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions.

[0036] Unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection or a detachable 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 the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] Unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include the first feature being in direct contact with the second feature, or may include the first feature being in contact with the second feature through another feature between them instead of being in direct contact. Moreover, a first feature being "above", "above" and "above" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0038] The technical solution of the present invention is further described below with reference to the accompanying drawings and through specific implementation methods.

[0039] Headphones are an audio conversion unit that receives electrical signals from a media player or receiver and converts them into audible sound waves using a speaker close to the ear. Wireless headphones have gradually become a mainstream choice for ease of portability and use. Wireless headphones form a signal transmission path through wireless communication protocols. In order to ensure the power supply of wireless headphones, batteries are installed inside the wireless headphones, so wireless headphones usually need to be equipped with a charging case for use.

[0040] This embodiment provides a wireless headset, which includes a charging structure, a shell and a speaker. The shell is provided with a listening hole and a connecting hole, the charging structure closes the connecting hole, the speaker and the battery are arranged in the shell, the speaker is electrically connected to the battery, and the speaker can play sound through the listening hole. In order to enable the wireless headset to receive the electrical signal sent by the media player, a wireless module is also arranged in the shell, and the battery can power the wireless module and the speaker to ensure their normal operation.

[0041] In this embodiment, the wireless headset further includes a microphone, which is disposed in the housing and electrically connected to the battery cell, so that the wireless headset has the function of receiving sound.

[0042] like Figure 1 As shown, in this embodiment, the connection hole of the shell is located at the bottom, that is, the charging structure is arranged at the bottom of the wireless headset, and the battery cell 2 is a long strip structure so that the positive and negative electrodes of the battery cell 2 are close to the microphone, speaker and wireless module at the top of the shell. Therefore, the terminals of the charging structure need to be welded with the connecting wires to connect the positive and negative electrodes of the battery cell 2. However, the relative position between the terminal and the connecting wire is difficult to fix, resulting in low welding accuracy and low welding efficiency, and high production cost.

[0043] like Figure 1 to Figure 3 As shown, in order to solve the above problems, the present embodiment provides a charging structure, which includes an insulating body 1, two charging terminals 3 and two connectors 4. The two charging terminals 3 are both arranged in the insulating body 1. The charging terminal 3 includes a contact portion 31 and a welding portion 32. The contact portion 31 is located outside the insulating body 1. The welding portion 32 is provided with a welding protrusion 33. The connector 4 includes a connecting section 41 and a ring 42. The ring 42 is provided with a welding hole 421. The rings 42 of the two connectors 4 are respectively sleeved on the corresponding welding protrusions 33 through the welding holes 421 and welded and fixed. The connecting sections 41 of the two connectors 4 are respectively connected to the positive and negative electrodes of the battery cell 2.

[0044] In this charging structure, since both charging terminals 3 have welding protrusions 33, before welding, the ring 42 of the connector 4 can be sleeved on the corresponding welding protrusions 33. At this time, the welding protrusion 33 can support and position the connector 4 through the ring 42, thereby ensuring the relative stability of the position between the charging terminal 3 and the connector 4, and also eliminating the structure for fixing the relative position between the charging terminal 3 and the connector 4, thereby improving welding accuracy, increasing welding efficiency, and reducing costs.

[0045] It is worth noting that, if the speaker of the wireless headset is located at the top and the microphone is located at the bottom, the welding protrusion 33 is set upward, and the ring 42 of the connecting member 4 is sleeved on the welding protrusion 33 from top to bottom. At this time, the welding protrusion 33 can support the ring 42 before welding with the ring 42, ensuring the stability of the relative position between the welding protrusion 33 and the ring 42, facilitating welding positioning, and the gap between the two is of appropriate size, and the welding stability is high.

[0046] Among them, a receiving groove 11 is opened on the top surface of the insulating body 1, and one end of the battery cell 2 is inserted into the receiving groove 11. The receiving groove 11 can position the battery cell 2 to ensure the stability of the battery cell 2 in the shell, thereby reducing the possibility of damaging the battery cell 2 when the wireless headset falls.

[0047] like Figure 4 As shown, the insulating body 1 includes a bottom ring 141 and a side wall 142 around the side wall 14 forming the receiving groove 11, and the two side walls 142 are spaced apart to form two grooves 143, and the welding protrusions 33 of the two charging terminals 3 are respectively arranged in one groove 143, and the ring 42 of the connecting member 4 is also arranged in the groove 143. The structure of the insulating body 1 can provide space for the connection between the ring 42 and the welding protrusion 33.

[0048] like Figure 2 As shown, the charging structure further includes a support block 6, which is disposed in the receiving groove 11, and a clamping slope 61 is disposed on the side of the support block 6 away from the bottom surface of the receiving groove 11, and the battery cell 2 abuts against the clamping slope 61. Driven by the clamping slope 61, the battery cell 2 moves toward the side wall 142 of the receiving groove 11, and is clamped by the clamping slope 61 and the side wall 142 of the receiving groove 11, thereby ensuring the stability of the battery cell 2.

[0049] Furthermore, an adapting inclined surface is provided at the bottom end of the battery cell 2 , and the adapting inclined surface is in sliding contact with the clamping inclined surface 61 .

[0050] like Figure 1 and Figure 2 As shown, the charging structure also includes a flux 5, which is sleeved on the welding protrusion 33 and fixedly connected to the collar 42. The flux 5 is used to weld and fix the welding protrusion 33 and the collar 42. When the flux 5 is melted by a welding gun, the flux 5 will flow between the welding protrusion 33 and the collar 42. When the flux 5 is cooled and solidified, the welding of the welding protrusion 33 and the collar 42 is completed.

[0051] Specifically, the flux 5 is a solder ball. The metal property of tin is suitable for soldering. Before soldering, the solder ball is placed in the gap between the solder protrusion 33 and the collar 42 .

[0052] like Figure 1 to Figure 3As shown, the connector 4 also includes an insulating outer skin 43, which covers the connecting section 41 and the ring 42 to improve the safety of the charging structure and avoid internal short circuit of the wireless headset.

[0053] It is worth noting that when the flux 5 is heated and melted, it has fluidity and may flow to other locations, resulting in insufficient flux 5 between the welding protrusion 33 and the collar 42, and also affecting other structures. Figure 3 As shown, in order to solve the above problem, the insulating outer skin 43 is provided with a limiting hole 431 , the welding hole 421 is located in the limiting hole 431 , and the flux 5 is located in the limiting hole 431 and fixedly connected to the collar 42 .

[0054] That is to say, a limiting groove can be formed between the limiting hole 431 and the collar 42, and the welding hole 421 of the collar 42 is completely located in the limiting groove. When the flux 5 melts, due to the existence of surface tension and the small spacing between the welding hole 421 and the welding protrusion 33, the flux 5 will not pass through the gap between the welding hole 421 and the welding protrusion 33, so the flux 5 will flow in the limiting groove, which can not only ensure that the flux 5 does not flow to other positions, but also make the flux 5 evenly fill the limiting groove, so that the welding protrusion 33 is welded and fixed to the welding hole 421 along the circumferential direction, thereby improving the welding quality.

[0055] like Figure 5 As shown, along the direction in which the welding protrusion 33 is inserted into the welding hole 421, the projection of part of the welding portion 32 is located outside the welding hole 421. In other words, the welding portion 32 cannot completely pass through the welding hole 421, and along the circumference of the receiving groove 11, the size A of the welding portion 32 is larger than the size B of the welding hole 421. When the flux 5 is melted, the welding portion 32 can receive part of the melted flux 5 to further reduce the possibility of the flux 5 passing through the gap between the welding hole 421 and the welding protrusion 33, and ensure that the flux 5 is completely cooled and solidified in the limiting groove, thereby improving the welding quality between the welding protrusion 33 and the collar 42.

[0056] like Figure 3 to Figure 6 As shown, the contact portion 31 is provided with a plurality of convex strips 35, and the plurality of convex strips 35 are all clamped and fixed with the insulating body 1. The plurality of convex strips 35 can increase the contact area between the contact portion 31 and the insulating body 1, and the plurality of convex strips 35 can also improve the connection strength between the contact portion 31 and the insulating body 1 in different directions, thereby ensuring that the contact portion 31 will not be separated from the insulating body 1.

[0057] Correspondingly, the insulating body 1 is provided with a slot 15 cooperating with each convex strip 35 , and each convex strip 35 is inserted into the corresponding slot 15 to improve the stability of the connection between the charging terminal 3 and the insulating body 1 .

[0058] In this embodiment, the welding portion 32 is provided with a fixing hole 321, and the insulating body 1 includes a fixing protrusion 12, and the fixing protrusion 12 is passed through the fixing hole 321 to fix the welding portion 32. The fixing protrusion 12 can fix the welding portion 32, thereby improving the stability of the welding portion 32, ensuring that the position of the welding portion 32 will not change during the process of sleeve-mounting the collar 42 of the connector 4 on the fixing protrusion 12 and welding, thereby improving the welding accuracy.

[0059] It is understandable that in this embodiment, there is no additional fixing structure between the charging terminal 3 and the insulating body 1. When the insulating body 1 is formed, the charging terminal 3 is placed in the molding mold of the insulating body 1, and injection molding is performed after positioning. After the molding is completed, the charging terminal 3 and the insulating body 1 form an integrated structure fixed together. Figure 3 to Figure 6 As shown, in order to further improve the connection strength between the charging terminal 3 and the insulating body 1, the charging terminal 3 also includes a connecting portion 34, the two ends of the connecting portion 34 are respectively connected to the contact portion 31 and the welding portion 32, and the connecting portion 34 includes a plurality of connecting sub-segments 341 connected in sequence, and the adjacent two-end connecting sub-segments 341 are arranged at an angle.

[0060] Since the connecting portion 34 includes a plurality of connecting sub-segments 341 connected in sequence, and the adjacent connecting sub-segments 341 at both ends are arranged at an angle, the connecting portion 34 is a multi-segment bending structure. This structure is arranged inside the insulating body 1, so that the contact area between the connecting portion 34 and the insulating body 1 is increased, and the insulating body 1 can also limit the connecting portion 34 in different directions to ensure that the connecting portion 34 will not move relative to the insulating body 1, thereby improving the stability between the charging terminal 3 and the insulating body 1.

[0061] During the injection molding process, multiple connecting sub-segments 341 are embedded in the side wall 14 of the insulating body 1, which can not only prevent the connecting sub-segments 341 from being exposed and causing problems such as oxidation and short circuit, but also improve the connection strength and ensure that the connecting part 34 will not move relative to the insulating body 1.

[0062] In this embodiment, the contact portion 31 is provided with a snap-in groove 311, and the insulating body 1 is provided with a snap-in portion 13. The snap-in portion 13 is snap-fitted with the snap-in groove 311. The snap-in portion 13 can fix the contact portion 31 through the snap-in groove 311 to ensure that the contact portion 31 does not move, thereby ensuring that after the wireless headset is placed in the charging compartment, the contact portion 31 can contact the contacts in the charging compartment to charge the battery cell 2.

[0063] Furthermore, the connection position of the connection portion 34 and the contact portion 31 is located in the clamping groove 311. It can be understood that the thickness of the insulating body 1 located at the clamping portion 13 is the largest, so the connection position of the connection portion 34 and the contact portion 31 is located in the clamping groove 311, which can improve the strength of the portion of the insulating body 1 that contacts the connection portion 34.

[0064] In order to increase the distance between the two charging terminals 3 and improve the insulation, the two charging terminals 3 are centrally symmetrically arranged along the central axis of the accommodating groove 11, the contact portions 31 of the two charging terminals 3 are arranged on opposite sides of the insulating body 1, and the welding portions 32 of the two charging terminals 3 are arranged on opposite sides of the insulating body 1.

[0065] like Figure 3 As shown, in the circumferential direction of the receiving groove 11 , the contact portions 31 of the two charging terminals 3 and the welding portions 32 of the two charging terminals 3 do not overlap.

[0066] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, according to the concept of the present invention, there will be changes in the specific implementation methods and application scopes. The content of this specification should not be understood as limiting the present invention.

Claims

1. A charging structure, characterized in that: include: An insulating body (1), wherein a receiving groove (11) is provided on the top surface of the insulating body (1), and one end of the battery cell (2) is inserted into the receiving groove (11); Two charging terminals (3) are both arranged in the insulating body (1), the charging terminal (3) comprising a contact portion (31) and a welding portion (32), the contact portion (31) is exposed outside the insulating body (1), and the welding portion (32) is provided with a welding protrusion (33); Two connecting members (4), the connecting members (4) comprising a connecting section (41) and a sleeve (42), the sleeve (42) being provided with a welding hole (421), the sleeves (42) of the two connecting members (4) being respectively sleeved on the corresponding welding protrusions (33) through the welding holes (421) and fixed by welding, and the connecting sections (41) of the two connecting members (4) being respectively connected to the positive electrode and the negative electrode of the battery cell (2).

2. The charging structure according to claim 1, characterized in that: The charging structure also includes flux (5), which is sleeved on the welding protrusion (33) and fixedly connected to the sleeve ring (42).

3. The charging structure according to claim 2, characterized in that: The connecting member (4) further comprises an insulating outer skin (43), wherein the insulating outer skin (43) covers the connecting section (41) and the sleeve ring (42), and the insulating outer skin (43) is provided with a limiting hole (431), the welding hole (421) is located in the limiting hole (431), and the flux (5) is located in the limiting hole (431) and is fixedly connected to the sleeve ring (42).

4. The charging structure according to claim 1, characterized in that: Along the direction in which the welding protrusion (33) is inserted into the welding hole (421), a projection of a portion of the welding portion (32) is located outside the welding hole (421).

5. The charging structure according to claim 1, characterized in that: The contact portion (31) is provided with a plurality of convex strips (35), and the plurality of convex strips (35) are all embedded in the insulating body (1).

6. The charging structure according to claim 1, characterized in that: The welding portion (32) is provided with a fixing hole (321), and the insulating body (1) comprises a fixing protrusion (12), and the fixing protrusion (12) is passed through the fixing hole (321) to fix the welding portion (32).

7. The charging structure according to any one of claims 1 to 6, characterized in that: The charging terminal (3) further comprises a connecting portion (34), the two ends of the connecting portion (34) being respectively connected to the contact portion (31) and the welding portion (32), the connecting portion (34) comprising a plurality of connecting sub-segments (341) connected in sequence, and the connecting sub-segments (341) at two adjacent ends are arranged at an angle.

8. The charging structure according to claim 7, characterized in that: The contact portion (31) is provided with a clamping groove (311), and the insulating body (1) is provided with a clamping portion (13), and the clamping portion (13) is clamped and matched with the clamping groove (311).

9. The charging structure according to claim 8, characterized in that: The connection position between the connection portion (34) and the contact portion (31) is located in the clamping groove (311).

10. A wireless headset, characterized in that: The charging structure comprises the charging structure as claimed in any one of claims 1 to 9, further comprising a housing, a battery cell (2) and a speaker, wherein the housing is provided with a listening hole and a connecting hole, the charging structure closes the connecting hole, the speaker and the battery cell (2) are arranged in the housing, the speaker is electrically connected to the battery cell (2), and the speaker can play sound through the listening hole.

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