A flip-open and close structure for a TWS earphone case

Abstract

The present application discloses a flip opening and closing structure for a TWS earphone case, which relates to the field of manufacturing structural parts of electronic devices. It includes a shaft body, a first connecting body, and a second connecting body. One end of the first connecting body is connected to a cover body used in cooperation with the shaft body, the other end of the first connecting body is installed on the second connecting body, and the other end of the second connecting body is connected to a case body used in cooperation with the shaft body. One side of the second connecting body is rotationally matched with one side of the first connecting body, and an arc-shaped track surface is formed on the other side of the second connecting body. The shaft body is connected to the first connecting body, the shaft body is located on the other side of the second connecting body, and flips and moves along the arc-shaped track surface. The present application uses the cooperation between the shaft body and the arc-shaped track surface to realize the rotation control of the cover body connected to the first connecting body, which can shorten the length of the shaft body, save the design space of the shaft body, and increase the competitive advantage of the products using this design.

Description

Technical Field

[0001] This application relates to the field of manufacturing structural components of electronic devices, and particularly to a flip-open and flip-close structure of a TWS earphone case. Background Art

[0002] With the improvement of living standards, wireless Bluetooth earphones have widely entered people's daily office and leisure entertainment scenarios and become one of the commonly consumed electronic devices.

[0003] Currently, for TWS (True Wireless Stereo) earphones, the earphone charging and storage case of TWS earphones generally includes a case body for storing earphone heads and a cover body located at the opening end of the case body. Users can open the case body by flipping up the cover body so that the earphones are exposed for the users to pick up and use.

[0004] In the related art, the earphone case adopts a flip-type design. By passing a shaft body through one edge of the cover body and opening a groove at the corresponding position at the opening end of the case body, both ends of the shaft body are respectively installed on the two side walls of the groove, and the cover body on the shaft body rotates around the center line of the shaft body to realize the flip-open and flip-close of the cover body.

[0005] Regarding the above related art, the inventor found that the rotation of the cover body of the earphone case in the related art is realized by a fixed shaft body. To enable the earphone case to withstand long-term repeated opening and closing use, the length of the required shaft body is relatively long, and the space occupied by the shaft body is large, which urgently needs to be coordinated with the design requirements of small and flexible TWS earphones. Summary of the Invention

[0006] In order to shorten the length of the shaft body, save the design space of the shaft body, and increase the competitive advantage of the products using this design, this application provides a flip-open and flip-close structure of a TWS earphone case.

[0007] A flip-open and flip-close structure of a TWS earphone case provided by this application adopts the following technical solution:

[0008] A flip-open and flip-close structure of a TWS earphone case includes a shaft body, a first connecting body, and a second connecting body. One end of the first connecting body is connected to a cover body used in cooperation with the shaft body, the other end of the first connecting body is installed on the second connecting body, and the other end of the second connecting body is connected to a case body used in cooperation with the shaft body; one side of the second connecting body is rotationally matched with one side of the first connecting body, an arc-shaped track surface is formed on the other side of the second connecting body, the shaft body is connected to the first connecting body, and the shaft body is located on the other side of the second connecting body and flips and moves along the arc-shaped track surface.

[0009] By adopting the above technical solution, through the cooperative setting of the shaft body, the first connecting body and the second connecting body, the first connecting body is installed on the second connecting body, one side of the second connecting body is rotationally matched with the first connecting body, the shaft body is connected to the first connecting body, an arc-shaped track surface is formed on the other side of the second connecting body, the first connecting body is flipped, the shaft body moves along the arc-shaped track surface, and the first connecting body rotates around the axis of the arc-shaped track surface. The rotation control of the cover body connected to the first connecting body is realized by using the cooperation between the shaft body and the arc-shaped track surface, effectively reducing the load borne by the shaft body, also reducing the bending resistance requirement for the shaft body, being able to shorten the length of the shaft body, saving the design space of the shaft body, and increasing the competitive advantage of the product using this design.

[0010] Optionally, first limiting portions and second limiting portions are formed at both circumferential ends of the arc-shaped track surface of the second connecting body. The first limiting portion and the second limiting portion are located on the same side of the arc-shaped track surface and are used to intercept the sliding of the shaft body from one end of the arc-shaped track surface to the other end.

[0011] By adopting the above technical solution, it is equivalent to reversely bending to form the first limiting portion and the second limiting portion at both circumferential ends of the arc-shaped track surface, and the displacement of the shaft body along the arc-shaped track surface is intercepted by the first limiting portion and the second limiting portion, preventing the problem that the shaft body disengages from the arc-shaped track surface due to excessive flipping.

[0012] Optionally, a first limiting plate and a second limiting plate are arranged at intervals on the side wall of the first connecting body facing the second connecting body, and the second connecting body is located between the first limiting plate and the second limiting plate.

[0013] By adopting the above technical solution, through the first limiting plate and the second limiting plate, the second connecting body is limited between the first limiting plate and the second limiting plate, which is equivalent to adding a layer of embedded fit and improving the design stability.

[0014] Optionally, an arc-shaped convex rib is arranged between the first limiting plate and the second limiting plate, and an arc-shaped concave portion fitting the arc-shaped convex rib is correspondingly formed on the side of the second connecting body facing the first connecting body, and the arc-shaped convex rib slides in the arc-shaped concave portion.

[0015] By adopting the above technical solution, an arc-shaped convex rib is arranged on the first connecting body, an arc-shaped concave portion is formed on the second connecting body, and the arc-shaped convex rib slides in the arc-shaped concave portion to limit the rotational fit between the second connecting body and the first connecting body. At the same time, the arc-shaped convex rib can be integrally arranged with the first connecting body, and the arc-shaped concave portion can be integrally arranged with the second connecting body, which is convenient for actual production, saves costs, and increases the competitive advantage of the product.

[0016] Optionally, a first mounting hole and a second mounting hole are respectively formed at the end of the first limiting plate and the end of the second limiting plate, and the end of the shaft body is inserted into the first mounting hole and the second mounting hole.

[0017] By adopting the above technical solution, the shaft body is passed through the ends of the first limiting plate and the second limiting plate, so that the shaft body is connected to the first connecting body, which has a simple design, is easy to assemble, and saves costs.

[0018] Optionally, a first opening is formed on one side of the first mounting hole, and a second opening is formed on one side of the second mounting hole. The first opening is connected to a side of the first mounting hole close to the shaft body, and the second opening is connected to a side of the second mounting hole close to the shaft body.

[0019] By adopting the above technical solution, the design of the opening can reduce the holding force of the hole wall on the shaft body, reduce the friction loss of the hole wall on the shaft body, and increase the service life of the shaft body.

[0020] Optionally, both the first opening and the second opening are fan-shaped.

[0021] By adopting the above technical solution, the design space of the shaft body can be saved to a certain extent in the vertical direction, and half of the opening depth can be saved vertically.

[0022] Optionally, an abutment slope is formed on the second connecting body, and the abutment slope is located on a side of the second connecting body facing away from the arc-shaped track surface. When the shaft body slides into the first limiting portion, the abutment slope abuts against a side wall of the first opening.

[0023] By adopting the above technical solution, when the cover body is opened, the shaft body slides into the first limiting portion, and one side wall of the first opening and the second opening abuts against the abutting inclined surface of the second connecting body, thereby increasing the contact area, improving the abutting stability, and avoiding abutting wear between the two as much as possible.

[0024] Optionally, an elastic traction member connected to the second connecting body is provided on one side of the first connecting body close to the arc-shaped track surface, a first connecting portion for connecting one end of the elastic traction member is provided on the first connecting body, and a second connecting portion for connecting the other end of the elastic traction member is provided on the same side of the second connecting body.

[0025] By adopting the above technical solution, a first connection part and a second connection part are provided to respectively connect the two ends of the elastic traction member, and the elastic traction member is used to increase the connection stability between the cover body and the box body in the closed state, so that the design is more comprehensive.

[0026] In summary, the present application includes at least one of the following beneficial technical effects:

[0027] Through the cooperative setting of the shaft body, the first connecting body, and the second connecting body, the first connecting body is installed on the second connecting body. One side of the second connecting body is rotatably matched with the first connecting body. The shaft body is connected to the first connecting body. An arc-shaped track surface is formed on the other side of the second connecting body. By flipping the first connecting body, the shaft body moves along the arc-shaped track surface, and the first connecting body rotates around the axis of the arc-shaped track surface. The rotation control of the cover body connected to the first connecting body is realized by using the cooperation between the shaft body and the arc-shaped track surface, effectively reducing the load borne by the shaft body, also reducing the bending resistance requirement for the shaft body, capable of shortening the length of the shaft body, saving the design space of the shaft body, and increasing the competitive advantage of the product using this design;

[0028] The displacement of the shaft body along the arc-shaped track surface is intercepted by using the first limiting portion and the second limiting portion to prevent the problem that the shaft body disengages from the arc-shaped track surface due to excessive flipping;

[0029] By providing an arc-shaped convex rib on the first connecting body and forming an arc-shaped concave portion on the second connecting body, the arc-shaped convex rib slides in the arc-shaped concave portion to limit the rotational fit between the second connecting body and the first connecting body. At the same time, the arc-shaped convex rib can be integrally provided with the first connecting body, and the arc-shaped concave portion can be integrally provided with the second connecting body, which is convenient for actual production, saves costs, and increases the competitive advantage of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 is the overall structural schematic diagram of the embodiment of the present application;

[0031] Figure 2 is the schematic diagram for showing the structure of the first connecting body in the embodiment of the present application;

[0032] Figure 3 is the schematic diagram for showing the structure of the second connecting body in the embodiment of the present application;

[0033] Figure 4 is the sectional schematic diagram for showing the internal structure of the embodiment of the present application.

[0034] Reference Numerals: 1, shaft body; 2, first connecting body; 3, second connecting body; 31, connection box body; 32, fitting body; 33, limiting body; 4, arc-shaped track surface; 5, first limiting portion; 6, second limiting portion; 7, first limiting plate; 8, second limiting plate; 9, arc-shaped convex rib; 10, arc-shaped concave portion; 11, first mounting hole; 12, second mounting hole; 13, first opening; 14, second opening; 15, abutting inclined surface; 16, first connecting portion; 17, second connecting portion; 18, elastic traction member; 19, spacing groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0035] The following further Figures 1-4 describes the present application in detail with reference to the

[0036] An embodiment of the present application discloses a flip opening and closing structure for a TWS earphone case.

[0037] Referring to Figure 1 , a flip opening and closing structure for a TWS earphone case includes a cylindrical shaft body 1, a first connecting body 2 fixed at one side edge of the cover body, and a second connecting body 3 fixed at a corresponding position on the top of the case body. The fixing method can be integrally injection molded, adhesively fixed, plug-fixed, etc. The first connecting body 2 is installed on the second connecting body 3, the shaft body 1 is connected to the first connecting body 2, an arc-shaped track surface 4 is formed on the other side of the second connecting body 3, the shaft body 1 is on this side of the second connecting body 3, flipping the first connecting body 2, the shaft body 1 moves along the arc-shaped track surface 4, and the first connecting body 2 rotates with the axis of the arc-shaped track surface 4 as the axis, realizing the flipping movement of the cover body.

[0038] Specifically, referring to Figure 2 and Figure 3 , a first limiting plate 7, a second limiting plate 8 and an arc-shaped convex rib 9 are integrally formed on the side wall of the first connecting body 2 facing the second connecting body 3. The first limiting plate 7 and the second limiting plate 8 are arranged at intervals, and the arc-shaped convex rib 9 is located between the first limiting plate 7 and the second limiting plate 8. The second connecting body 3 includes a connecting box body 31, a fitting body 32 located at the middle position on the top of the connecting box body 31, and limiting bodies 33 located at both ends on the top of the connecting box body 31. The connecting box body 31 is an L-shaped plate, and the included angle is arc-shaped. The connecting box body 31 is integrally formed with the case body and is equivalent to a part of the case body. A corresponding arc-shaped concave portion 10 that fits with the arc-shaped convex rib 9 is formed on the side of the fitting body 32 facing the first connecting body 2. The fitting body 32 is embedded between the side walls of the first limiting plate 7 and the second limiting plate 8 that are close to each other, and the arc-shaped convex rib 9 slides in the arc-shaped concave portion 10 to limit the rotational fit between the second connecting body 3 and the first connecting body 2, increasing the design stability. An interval groove 19 is also formed on the arc-shaped concave portion 10, so that part of the arc-shaped concave portion 10 is in direct contact with the arc-shaped convex rib 9, reducing the wear between the arc-shaped convex rib 9 and the arc-shaped concave portion 10. The first connecting body 2 is located between the side walls of the two limiting bodies 33 that are close to each other. When rotating, the two end portions of the first connecting body 2 parallel to the connecting box body 31 are respectively limited by the two limiting bodies 33, improving the design stability. Preferably, the connecting box body 31, the fitting body 32, the limiting bodies 33, the arc-shaped concave portion 10 and the interval groove 19 are integrally injection molded or integrally die cast, which is convenient for actual production, saves costs and increases the competitive advantage of the product.

[0039] The ends of the first limiting plate 7 and the second limiting plate 8 are respectively provided with a first mounting hole 11 and a second mounting hole 12. The end of the shaft body 1 is inserted into the first mounting hole 11 and the second mounting hole 12, so that the shaft body 1 is connected to the first connecting body 2. A first opening 13 is provided on one side of the first mounting hole 11, and a second opening 14 is provided on one side of the second mounting hole 12. Both the first opening 13 and the second opening 14 are fan-shaped. The first opening 13 communicates with the side of the first mounting hole 11 close to the shaft body 1, and the second opening 14 communicates with the side of the second mounting hole 12 close to the shaft body 1, which can reduce the clamping force of the hole wall on the shaft body 1, reduce the frictional loss of the hole wall on the shaft body 1, and improve the service life of the shaft body 1. The first mounting hole 11, the second mounting hole 12, the first opening 13, and the second opening 14 are all integrally formed (such as integrally injection-molded) on the first connecting body 2, further saving production costs.

[0040] The arc-shaped track surface 4 is integrally formed on the side of the mating body 32 away from the arc-shaped convex rib 9, and the shaft body 1 is located on this side of the mating body 32. First limiting portions 5 and second limiting portions 6 are formed at both circumferential ends of the arc-shaped track surface 4. The first limiting portions 5 and the second limiting portions 6 are located on the same side of the arc-shaped track surface 4 and are used to intercept the sliding of the shaft body 1 from one end of the arc-shaped track surface 4 to the other end. Preferably, the arc-shaped track surface 4, the first limiting portions 5, the second limiting portions 6, and the arc-shaped concave portion 10 are all integrally formed on the mating body 32, that is, the mating body 32 is bent and integrally formed, which is convenient for actual production. During use, when the cover body is flipped, the first connecting body 2 and the shaft body 1 move along the arc-shaped track surface 4 on the second connecting body 3, and the axis of the moving path is the axis of the arc-shaped track surface 4. The rotation process of the cover body is controlled by the cooperation between the arc-shaped track surface 4 and the shaft body 1.

[0041] In addition, referring to Figure 1 and Figure 4 , a butting inclined surface 15 is integrally formed or machined at the end of the connection box body 31 close to the mating body 32. The butting inclined surface 15 is located on the side of the connection box body 31 facing away from the arc-shaped track surface 4. In the state where the shaft body 1 slides into the first limiting portion 5, the butting inclined surface 5 abuts against one side wall of the first opening 13, that is, when the cover body is opened, one side walls of the first opening 13 and the second opening 14 abut against the butting inclined surface 15 of the connection box body 31, improving the stability when the two abut and reducing the abutting wear therebetween.

[0042] On one side of the second limiting plate 8 close to the arc-shaped track surface 4, an elastic traction member 18 connected to the connection box body 31 is provided. Specifically, a first connection portion 16 is provided on the second limiting plate 8, and a second hanging portion 17 is provided on the connection box body 31. The elastic traction member 18 is a tension spring. The first connection portion 16 is a jack integrally formed on one side of the second limiting plate 8 close to the arc-shaped track surface 4 for inserting one end of the tension spring. The second connection portion 17 is a hanging plate integrally formed on the same side of the connection box body 31 for hanging the other end of the tension spring, so as to increase the connection stability between the cover body and the box body in the closed state and make the design more comprehensive.

[0043] The implementation principle of the flip-open and -close structure of a TWS earphone box according to an embodiment of the present application is as follows: Through the cooperative setting of the shaft body 1, the first connection body 2, and the second connection body 3, the first connection body 2 is installed on the second connection body 3. One side of the second connection body 3 is rotationally matched with the first connection body 2. The shaft body 1 is connected to the first connection body 2. An arc-shaped track surface 4 is formed on the other side of the second connection body 3. When the first connection body 2 is flipped, the shaft body 1 moves along the arc-shaped track surface 4, and the first connection body 2 rotates around the axis of the arc-shaped track surface 4. The rotation control of the cover body connected to the first connection body 2 is realized by using the cooperation between the shaft body 1 and the arc-shaped track surface 4, effectively reducing the load that the shaft body 1 needs to bear, also reducing the bending resistance requirement for the shaft body 1, being able to shorten the length of the shaft body 1, saving the design space of the shaft body 1, and increasing the competitive advantage of the product using this design.

[0044] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A flip-open and close structure of a TWS earphone case, characterized in that: It includes a shaft body (1), a first connecting body (2) and a second connecting body (3). One end of the first connecting body (2) is connected to a cover body used in cooperation with the shaft body (1). The other end of the first connecting body (2) is installed on the second connecting body (3). The other end of the second connecting body (3) is connected to a box body used in cooperation with the shaft body (1). One side of the second connecting body (3) is rotationally matched with one side of the first connecting body (2). An arc-shaped track surface (4) is formed on the other side of the second connecting body (3). The shaft body (1) is connected to the first connecting body (2). The shaft body (1) is located on the other side of the second connecting body (3) and flips and moves along the arc-shaped track surface (4). First limiting plates (7) and second limiting plates (8) are arranged at intervals on the side wall of the first connecting body (2) facing the second connecting body (3). An arc-shaped convex rib (9) is arranged between the first limiting plate (7) and the second limiting plate (8). A corresponding arc-shaped concave portion (10) that fits the arc-shaped convex rib (9) is formed on one side of the second connecting body (3) facing the first connecting body (2). The arc-shaped convex rib (9) slides in the arc-shaped concave portion (10). First mounting holes (11) and second mounting holes (12) are respectively formed at the ends of the first limiting plate (7) and the second limiting plate (8). The end of the shaft body (1) passes through the first mounting hole (11) and the second mounting hole (12).

2. The flip opening and closing structure of a TWS earphone case according to claim 1, characterized in that: First limiting portions (5) and second limiting portions (6) are formed at both circumferential ends of the arc-shaped track surface (4) of the second connecting body (3). The first limiting portion (5) and the second limiting portion (6) are located on the same side of the arc-shaped track surface (4) and are used to intercept the sliding of the shaft body (1) from one end to the other end of the arc-shaped track surface (4).

3. The flipping and opening / closing structure of a TWS earphone case according to claim 1, characterized in that: The second connecting body (3) is located between the first limiting plate (7) and the second limiting plate (8).

4. The flip opening and closing structure of a TWS earphone case according to claim 2, characterized in that: A first opening (13) is formed on one side of the first mounting hole (11). A second opening (14) is formed on one side of the second mounting hole (12). The first opening (13) communicates with the side of the first mounting hole (11) close to the shaft body (1). The second opening (14) communicates with the side of the second mounting hole (12) close to the shaft body (1).

5. The flip-open and flip-close structure of a TWS earphone case according to claim 4, characterized in that: Both the first opening (13) and the second opening (14) are fan-shaped.

6. The flip opening and closing structure of a TWS earphone case according to claim 5, wherein: A contact inclined surface (15) is formed on the second connecting body (3). The contact inclined surface (15) is located on the side of the second connecting body (3) facing away from the arc-shaped track surface (4). In the state where the shaft body (1) slides into the first limiting portion (5), the contact inclined surface (15) abuts against one side wall of the first opening (13).

7. The flip opening and closing structure of a TWS earphone case according to claim 1, characterized in that: On one side of the first connecting body (2) close to the arc-shaped track surface (4), an elastic traction member (18) connected to the second connecting body (3) is provided. A first connecting portion (16) for connecting one end of the elastic traction member (18) is provided on the first connecting body (2). On the same side of the second connecting body (3), a second connecting portion (17) for connecting the other end of the elastic traction member (18) is provided.

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