CN115022768B

CN115022768B - Earphone charging box connecting device and earphone charging box

Info

Publication number: CN115022768B
Application number: CN202210930752.2A
Authority: CN
Inventors: 张华�; 王文亮; 程黎辉; 关亚东
Original assignee: Longcheer Electronics Huizhou Co Ltd
Current assignee: Longcheer Electronics Huizhou Co Ltd
Priority date: 2022-08-04
Filing date: 2022-08-04
Publication date: 2023-06-16
Anticipated expiration: 2042-08-04
Also published as: CN115022768A

Abstract

The invention discloses an earphone charging box connecting device and an earphone charging box, wherein the earphone charging box connecting device comprises a first shell, a second shell and a third shell; the third housing is arranged between the first housing and the second housing; the two ends of the third shell are respectively provided with a rotating shaft slot; one end of the first shell and one end of the second shell are respectively provided with a rotating shaft; the rotating shaft is inserted into the rotating shaft slot; a limiting groove extending along the circumferential direction of the rotating shaft is formed in the outer wall of the rotating shaft; and a limiting block is arranged on the inner wall of the rotating shaft slot, and the limiting block is movably clamped in the limiting slot. The invention has larger opening angle, can be automatically flicked by one hand operation, can be kept at any opening angle, can be conveniently operated by a user, and has better use experience.

Description

Earphone charging box connecting device and earphone charging box

Technical Field

The invention relates to the field of real wireless stereo (TWS, true Wireless Stereo) headphones, in particular to a headphone charging box connecting device and a headphone charging box.

Background

With the continuous improvement of the living standard of people, wireless headphones have widely been put into daily office and leisure and entertainment scenes of people, and become one of electronic devices commonly consumed by people. True wireless stereo (TWS, true Wireless Stereo) headphones have become a mainstream product in the market, and are popular with consumers due to their convenience of use. A truly wireless stereo (TWS, true Wireless Stereo) headset requires a headset charging box to accommodate and charge the headset in order to charge the headset while not being portable.

Earphone charging box among the prior art includes box body and lid, sets up shaft hole and pivot on box body and lid respectively, rotates in the shaft hole through the pivot and realizes the articulated between box body and the lid to the operable lid of opening and closing. However, in the earphone charging box in the prior art, the maximum opening angle of the cover body is controlled by magnetic action, so that on one hand, the limiting stability is poor, and the limiting failure is frequently caused when external force is applied; on the other hand, when it is required to design and produce earphone charging boxes having different maximum flip angles, magnetic parts having different magnetic forces are purchased, and the versatility of development and production is poor.

Disclosure of Invention

The invention aims to provide a headset charging box connecting device and a headset charging box.

The invention provides a headset charging box connecting device, which comprises a first shell, a second shell and a third shell; the third housing is arranged between the first housing and the second housing; the two ends of the third shell are respectively provided with a rotating shaft slot; one end of the first shell and one end of the second shell are respectively provided with a rotating shaft; the rotating shaft is inserted into the rotating shaft slot; a limiting groove extending along the circumferential direction of the rotating shaft is formed in the outer wall of the rotating shaft; and a limiting block is arranged on the inner wall of the rotating shaft slot, and the limiting block is movably clamped in the limiting slot.

The included angle between the two ends of the limiting groove is 130 degrees. The first shell, the second shell, the third shell and the rotating shaft are of hollow structures, so that a cavity penetrating through the first shell, the second shell and the third shell is formed inside the assembled first shell, the assembled second shell and the assembled third shell. The earphone charging box connecting device provided by the invention further comprises a spring, wherein two ends of the spring are respectively fixed with the two rotating shafts; the middle part of the spring is fixed with the third shell. The spring is a double-torsion spring comprising a first spring body and a second spring body; a first torsion arm is arranged between the first spring body and the second spring body; the outer ends of the first spring body and the second spring body are respectively provided with a second torsion arm; a first torsion arm clamping groove is formed in the inner wall of the third shell; and the inner walls of the two rotating shafts are respectively provided with a second torsion arm clamping groove. The earphone charging box connecting device provided by the invention is also provided with a tubular spring supporting shaft; the middle part of the tubular spring support shaft is arranged in the first spring body and the second spring body in a penetrating way; the two end parts of the tubular spring support shaft are arranged in the two rotating shafts in a penetrating way. The earphone charging box connecting device provided by the invention further comprises two silica gel rings, wherein an annular groove is formed in the inner end of the rotating shaft, and the silica gel rings are sleeved in the annular groove.

The invention provides an earphone charging box, which comprises a lower box body, an upper box body and a connecting device; the earphone charging box connecting device is characterized in that the connecting device is an earphone charging box connecting device; the first shell and the second shell are fixed with the upper box body; the third shell is fixed with the lower box body. The top of the lower box body and the end part of the upper box body are respectively provided with a first mounting groove and a second mounting groove; the first mounting groove and the second mounting groove form an assembly groove matched with the peripheral shape of the connecting device. A third connecting part is arranged at the bottom of the third shell; a third assembly groove matched with the third connecting part in shape is formed in the first mounting groove; the third connecting portion is inserted into the third fitting groove. The side parts of the first shell and the second shell are respectively provided with a first connecting part and a second connecting part; a first assembly groove matched with the shape of the first connecting part and a second assembly groove matched with the shape of the second connecting part are arranged in the second mounting groove; the first connecting part is inserted into the first assembling groove; the second connecting portion is inserted into the second fitting groove. The first connecting part, the second connecting part and the third connecting part are hollow structures; the tops of the first connecting part, the second connecting part and the third connecting part are respectively provided with a first wiring hole; the tops of the first assembly groove, the second assembly groove and the third assembly groove are respectively provided with a second wiring hole communicated with the first wiring hole. The outside of the first wire hole or the second wire hole can be provided with a tubular wire column.

According to the earphone charging box connecting device, the inside is of a hollow structure, so that a cable can conveniently pass through the earphone charging box connecting device; the limiting groove and the limiting block for controlling the opening and closing angle are arranged in the shell of the connecting device, so that the appearance is simpler, and the structure is more stable. The earphone charging box provided by the invention has a larger opening angle, can be automatically sprung open by single-hand operation, can be kept at any opening angle, can be conveniently operated by a user, and has better use experience.

Drawings

Fig. 1 is an assembly schematic diagram of a headset charging case connection device according to an embodiment of the invention;

fig. 2 is a schematic structural diagram of a first housing in the earphone charging case connection device according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a third housing in the earphone charging case connection device according to the first embodiment of the present invention;

fig. 4 is a schematic structural diagram of a spring in a headset charging case connection device according to an embodiment of the present invention;

fig. 5 is a schematic structural view of a tubular spring supporting shaft in a headset charging case connection device according to an embodiment of the present invention;

fig. 6 is a schematic view showing an external structure of an earphone charging case connection device according to the first or second embodiment of the present invention after the assembly is completed;

fig. 7 is a schematic view illustrating an assembling position of a connection device in a headset charging case according to a third embodiment of the present invention;

fig. 8 is an assembly schematic diagram of a connecting device and upper and lower cases in a headset charging case according to a third embodiment of the present invention;

fig. 9 is a schematic diagram illustrating an assembly of a connection device and a second mounting groove in a headset charging case according to a third embodiment of the present invention;

fig. 10 is a schematic diagram illustrating a connection device of a headset charging case according to a first or second embodiment of the invention;

fig. 11 is a schematic view of a first housing structure of a headset charging case connection device according to a second embodiment of the invention;

fig. 12 is an assembly schematic diagram of a headset charging case connection device according to a second embodiment of the invention.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Example 1

As shown in fig. 1 to 6, the present embodiment provides an earphone charging case connection device including a first housing 1, a second housing 2, and a third housing 3; the third housing 3 is arranged between the first housing 1 and the second housing 2; the two ends of the third shell 3 are respectively provided with a rotating shaft slot 5; one end of the first shell 1 and one end of the second shell 2 are respectively provided with a rotating shaft 4; the rotating shaft 4 is inserted into the rotating shaft slot 5; a limiting groove 6 extending along the circumferential direction of the rotating shaft 4 is formed in the outer wall of the rotating shaft; the inner wall of the rotating shaft slot 5 is provided with a limiting block 7, and the limiting block 7 is movably clamped in the limiting groove 6. As will be appreciated by those skilled in the art, the first housing 1 and the second housing 2 are connected to the third housing 3 through the rotation shaft 4, so that the first housing 1 and the third housing 3 can rotate relative to each other, and the third housing 3 and the second housing 2 can rotate relative to each other; when the first casing 1 and the second casing 2 are fixed to the upper case 16 at the same time, and the third casing 3 is fixed to the lower case 15, the upper case 16 and the lower case 15 are hinged, thereby opening or closing the upper case 16. Conversely, if the first casing 1 and the second casing 2 are fixed to the lower case 15 at the same time, and the third casing 3 is fixed to the upper case 16, the upper case 16 and the lower case 15 may be hinged to each other, so that the upper case 16 may be opened or closed. The limiting block 7 is movably clamped in the limiting groove 6, when the rotating shaft 4 rotates in the rotating shaft slot 5, the limiting block 7 slides along the circumferential direction of the rotating shaft 4 in the limiting groove 6, and when the limiting block 7 reaches the two end parts of the limiting groove 6, the limiting block 7 is respectively in a state that the upper box 16 and the lower box 15 are closed and in a state that the upper box 16 and the lower box 15 are in a maximum opening angle.

The included angle between the two ends of the limiting groove 6 is 130 degrees. As can be appreciated by those skilled in the art, when the rotation shaft 4 rotates in the rotation shaft slot 5, the maximum travel of the limiting block 7 in the limiting slot 6 is 130 degrees, so that after the earphone charging case connecting device provided by the embodiment is respectively fixed with the lower case 15 and the upper case 16 of the earphone case, the maximum opening angle of the lower case 15 and the upper case 16 is 130 degrees. It can be understood by those skilled in the art that the current general maximum flip angle of the earphone box on the market is 110 degrees, and the earphone charging box connecting device provided by the embodiment enlarges the maximum flip angle of the earphone box to 130 degrees, so that more design space is provided for the internal storage design of the earphone box, and the consumer takes the earphone and later maintains and maintains the inside of the earphone box more conveniently.

The first casing 1, the second casing 2, the third casing 3 and the rotating shaft 4 are hollow structures, so that a cavity penetrating the first casing 1, the second casing 2 and the third casing 3 is formed inside after the first casing 1, the second casing 2 and the third casing 3 are assembled. It will be appreciated by those skilled in the art that a cable connection is required between the lower case 15 and the upper case 16 of the earphone charging case, so that the power and the electric signal provided in the lower case 15 can be transmitted to the active device provided in the upper case 16 through the cable, and a through cavity is formed in the earphone charging case connection device, so that on one hand, a channel is provided for the cable routing, and meanwhile, the simplicity and the beauty of the external structure of the earphone charging case are maintained.

The earphone charging box connecting device provided by the embodiment further comprises a spring, wherein two ends of the spring are respectively fixed with the two rotating shafts 4; the middle part of the spring is fixed with the third shell 3. As will be appreciated by those skilled in the art, when the spindle 4 rotates in the spindle socket 5, the middle part of the spring moves with the third housing 3; the two ends of the spring move along with the first shell 1 and the second shell 2, so that the spring deforms to generate elastic force. As will be appreciated by those skilled in the art, the limiting block 7 and the limiting groove 6 are disposed at one end of the limiting groove 6 when the spring is deformed, and the lower case 15 and the upper case 16 are respectively fixed to the first case 1, the second case 2 and the third case 3 in a mutually closed state; in this way, the spring will generate an elastic force that rotates the stopper 7 toward the other end of the stopper groove 6, causing the upper case 16 and the lower case 15 to be turned open toward an angle of 130 degrees. It will be appreciated by those skilled in the art that the edges of the lower case 15 and the upper case 16 may be provided with a snap-in structure or a magnetic structure to overcome the elastic force of the spring, when the snap-in structure is engaged, the upper case 16 is controlled to be in a closed state with the lower case 15, and when the snap-in structure or the magnetic structure is released by a user, the upper case 16 automatically springs to be opened 130 degrees under the elastic force. This provides great convenience to the user operating with one hand.

The spring is a double-torsion spring comprising a first spring body 8 and a second spring body 9; a first torsion arm 10 is arranged between the first spring body 8 and the second spring body 9; the outer ends of the first spring body 8 and the second spring body 9 are respectively provided with a second torsion arm 11; a first torsion arm clamping groove is formed in the inner wall of the third shell 3; and second torsion arm clamping grooves are formed in the inner walls of the two rotating shafts 4. As will be appreciated by those skilled in the art, when the first casing 1, the second casing 2 and the third casing 3 are assembled, the middle part of the spring is fixed with the third casing 3 by clamping the first torsion arm 10 in the first torsion arm clamping groove; the two ends of the spring are respectively fixed with the first shell 1 and the second shell 2 by respectively clamping the two second torsion arms 11 in the clamping grooves of the two second torsion arms.

The earphone charging box connecting device provided by the embodiment is also provided with a tubular spring supporting shaft 12; the middle part of the tubular spring support shaft 12 is arranged in the first spring body 8 and the second spring body 9 in a penetrating way; the two ends of the tubular spring support shaft 12 are inserted into the two rotating shafts 4. As will be appreciated by those skilled in the art, the middle part of the tubular spring support shaft 12 is penetrated in the first spring body 8 and the second spring body 9, so that the tubular spring support shaft 12 supports the spring, so as to stably arrange the spring in the third housing 3; the two ends of the tubular spring support shaft 12 respectively penetrate into the two rotating shafts 4, so that the rotating shafts 4 can be fixed more stably. As will be appreciated by those skilled in the art, the tubular spring support shaft 12 is hollow in structure and does not interfere with routing within the cavity.

Example two

As shown in fig. 11 or 12, the present embodiment provides an earphone charging case connection device including a first casing 1, a second casing 2, and a third casing 3; the third housing 3 is arranged between the first housing 1 and the second housing 2; the two ends of the third shell 3 are respectively provided with a rotating shaft slot 5; one end of the first shell 1 and one end of the second shell 2 are respectively provided with a rotating shaft 4; the rotating shaft 4 is inserted into the rotating shaft slot 5; a limiting groove 6 extending along the circumferential direction of the rotating shaft 4 is formed in the outer wall of the rotating shaft; the inner wall of the rotating shaft slot 5 is provided with a limiting block 7, and the limiting block 7 is movably clamped in the limiting groove 6. As will be appreciated by those skilled in the art, the first housing 1 and the second housing 2 are connected to the third housing 3 through the rotation shaft 4, so that the first housing 1 and the third housing 3 can rotate relative to each other, and the third housing 3 and the second housing 2 can rotate relative to each other; when the first casing 1 and the second casing 2 are fixed to the upper case 16 at the same time, and the third casing 3 is fixed to the lower case 15, the upper case 16 and the lower case 15 are hinged, thereby opening or closing the upper case 16. Conversely, if the first casing 1 and the second casing 2 are fixed to the lower case 15 at the same time, and the third casing 3 is fixed to the upper case 16, the upper case 16 and the lower case 15 may be hinged to each other, so that the upper case 16 may be opened or closed. The limiting block 7 is movably clamped in the limiting groove 6, when the rotating shaft 4 rotates in the rotating shaft slot 5, the limiting block 7 slides along the circumferential direction of the rotating shaft 4 in the limiting groove 6, and when the limiting block 7 reaches the two end parts of the limiting groove 6, the limiting block 7 is respectively in a state that the upper box 16 and the lower box 15 are closed and in a state that the upper box 16 and the lower box 15 are in a maximum opening angle.

The earphone charging box connecting device provided by the embodiment further comprises two silica gel rings 13, wherein an annular groove 14 is formed in the inner end of the rotating shaft 4, and the silica gel rings 13 are sleeved in the annular groove 14. It will be appreciated by those skilled in the art that, when the assembly is completed, the silica gel ring 13 is clamped between the inner wall of the rotating shaft slot 5 and the outer wall of the rotating shaft 4, so that a larger friction force exists between the rotating shaft 4 and the rotating shaft slot 5, and thus, when the upper case 16 is turned over by a certain angle, the upper case can be kept at the turned-over angle by virtue of the friction force of the silica gel ring 13, and thus, a user can conveniently keep the earphone charging case at a proper angle according to the use requirement.

Example III

As shown in fig. 7 to 10, the present embodiment provides an earphone charging case, which includes a lower case 15, an upper case 16, and a connecting device; the connection device is the earphone charging case connection device described in the first embodiment or the second embodiment; the first shell 1 and the second shell 2 are fixed with the upper box 16; the third casing 3 is fixed to the lower case 15. It will be appreciated by those skilled in the art that the closing and automatic ejection of the lower case 15 and the upper case 16 can be achieved by the mutual rotation of the first case 1, the second case 2 and the third case 3.

A first mounting groove 17 and a second mounting groove 18 are respectively arranged at the top of the lower box body 15 and the end part of the upper box body 16; the first mounting groove 17 and the second mounting groove 18 form an assembly groove matching the outer circumferential shape of the connection device. As will be appreciated by those skilled in the art, the connecting device is disposed in the assembly groove, and the appearance of the lower case 15, the upper case 16 and the connecting device is kept integral, so that the structure is more beautiful and stable.

A third connecting part 19 is arranged at the bottom of the third shell 3; a third assembly groove 20 matched with the third connecting part 19 in shape is arranged in the first installation groove 17; the third connecting portion 19 is inserted into the third fitting groove 20. As will be appreciated by those skilled in the art, this allows the third housing 3 to be removably mounted on top of the lower case 15.

The side parts of the first shell 1 and the second shell 2 are respectively provided with a first connecting part 21 and a second connecting part 22; a first assembly groove 23 matched with the shape of the first connecting part 21 and a second assembly groove 24 matched with the shape of the second connecting part 22 are arranged in the second mounting groove 18; the first connection part 21 is inserted into the first fitting groove 23; the second connection portion 22 is inserted into the second fitting groove 24. As will be appreciated by those skilled in the art, the first and

second housings

1, 2 are detachably mounted to the sides of the upper case 16.

The first connecting part 21, the second connecting part 22 and the third connecting part 19 are hollow; the tops of the first connecting part 21, the second connecting part 22 and the third connecting part 19 are respectively provided with a first wiring hole 25; the top of the first assembly groove 23, the second assembly groove 24 and the third assembly groove 20 are respectively provided with a second wiring hole 26 communicated with the first wiring hole 25. It will be appreciated by those skilled in the art that the first routing holes 25, the second routing holes 26 and the cavities may form a channel through the upper and

lower housings

16, 15, which may be used to route cables to achieve electrical connections between electronic components within the upper and

lower housings

16, 15.

The first routing hole 25 or the second routing hole 26 may be further provided with a tubular routing post 27 on the outside. As will be appreciated by those skilled in the art, the tubular trace 27 disposed outside the first trace hole 25 may be threaded into the matching second trace hole 26 to form a trace channel; similarly, a tubular trace post 27 disposed outside the second trace hole 26 may penetrate into the first trace hole 25 to form a trace channel; this can better guide the cable.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A headset charging box connecting device, which is characterized by comprising a first shell (1), a second shell (2) and a third shell (3); the third shell (3) is arranged between the first shell (1) and the second shell (2); two ends of the third shell (3) are respectively provided with a rotating shaft slot (5); one end of the first shell (1) and one end of the second shell (2) are respectively provided with a rotating shaft (4); the rotating shaft (4) is inserted into the rotating shaft slot (5); a limit groove (6) extending along the circumferential direction of the rotating shaft (4) is formed in the outer wall of the rotating shaft; a limiting block (7) is arranged on the inner wall of the rotating shaft slot (5), and the limiting block (7) is movably clamped in the limiting groove (6);

the device also comprises a spring, wherein two ends of the spring are respectively fixed with the two rotating shafts (4); the middle part of the spring is fixed with the third shell (3);

the spring is a double-torsion spring comprising a first spring body (8) and a second spring body (9); a first torsion arm (10) is arranged between the first spring body (8) and the second spring body (9); the outer ends of the first spring body (8) and the second spring body (9) are respectively provided with a second torsion arm (11); a first torsion arm clamping groove is formed in the inner wall of the third shell (3); the inner walls of the two rotating shafts (4) are respectively provided with a second torsion arm clamping groove.

2. The earphone charging case connection device according to claim 1, wherein the first housing (1), the second housing (2), the third housing (3) and the rotating shaft (4) are hollow structures, so that a cavity penetrating the first housing (1), the second housing (2) and the third housing (3) is formed inside after the first housing (1), the second housing (2) and the third housing (3) are assembled.

3. The earphone charging case connection device according to claim 2, further comprising a tubular spring support shaft (12); the middle part of the tubular spring support shaft (12) is penetrated in the first spring body (8) and the second spring body (9); the two end parts of the tubular spring support shaft (12) are arranged in the two rotating shafts (4) in a penetrating way.

4. A headset charging box connection according to any of claims 1 to 3, characterized in that the angle between the two ends of the limit slot (6) is 130 degrees.

5. The earphone charging box connection device according to claim 4, further comprising two silicone rings (13), wherein an annular groove (14) is formed at the inner end of the rotating shaft (4), and the silicone rings (13) are sleeved in the annular groove (14).

6. A headset charging box, characterized by comprising a lower box body (15), an upper box body (16) and a headset charging box connecting device according to claim 5; the first shell (1) and the second shell (2) are fixed with the upper box body (16); the third shell (3) is fixed with the lower box body (15).

7. The earphone charging case according to claim 6, wherein a top of the lower case (15) and an end of the upper case (16) are provided with a first mounting groove (17) and a second mounting groove (18), respectively; the first mounting groove (17) and the second mounting groove (18) form an assembling groove matched with the peripheral shape of the earphone charging box connecting device.

8. The earphone charging case according to claim 7, wherein a bottom of the third housing (3) is provided with a third connecting portion (19); a third assembly groove (20) matched with the shape of the third connecting part (19) is arranged in the first mounting groove (17); the third connecting portion (19) is inserted into the third fitting groove (20).

9. The earphone charging case according to claim 8, wherein side portions of the first housing (1) and the second housing (2) are provided with a first connection portion (21) and a second connection portion (22), respectively; a first assembly groove (23) matched with the shape of the first connecting part (21) and a second assembly groove (24) matched with the shape of the second connecting part (22) are arranged in the second mounting groove (18); the first connecting portion (21) is inserted into the first fitting groove (23); the second connecting portion (22) is inserted into the second fitting groove (24).

10. The earphone charging case according to claim 9, wherein the interiors of the first connecting portion (21), the second connecting portion (22), and the third connecting portion (19) are hollow structures; the tops of the first connecting part (21), the second connecting part (22) and the third connecting part (19) are respectively provided with a first wiring hole (25); the tops of the first assembly groove (23), the second assembly groove (24) and the third assembly groove (20) are respectively provided with a second wiring hole (26) communicated with the first wiring hole (25).

11. Earphone charging case according to claim 10, wherein the exterior of the first (25) or second (26) routing holes is further provided with a tubular routing post (27).