Ear clamping type Bluetooth earphone and earphone box

Abstract

The utility model discloses an ear clamping type bluetooth earphone and earphone box, including cavity portion, earphone body portion and connecting portion connected and arranged between cavity portion and earphone body portion, connecting portion includes flexible shell, deformation material and flexible circuit, deformation material and flexible circuit are both arranged in flexible shell. The structural design of the connecting part allows the connecting part to be switched between the bent state and the flattened state, and when no external force is applied or the applied external force is smaller than the critical deformation force, the connecting part can be maintained in the current state, and the connecting part is switched to the bent state by bending the connecting part, so that the relative position between the cavity part and the earphone body part is changed; according to the earphone box, the cavity part and the earphone body part can be tightly attached to different auricle shapes, the wearing comfort is improved, the connecting part can be switched to a flattened state, so that the two ear clamping type Bluetooth earphones can be conveniently and flatly placed in the earphone box, the size of the earphone box is reduced, and the portability can be improved.

Description

Technical Field

[0001] This utility model relates to the field of Bluetooth headset technology, and more specifically, to a clip-on Bluetooth headset and a headset case. Background Technology

[0002] The most common clip-on earphones on the market generally use a U-shaped waist end for clamping. Two relatively large ends are located at either end of the waist end, housing the sound unit and circuitry unit respectively. The waist end allows the two ends to open and close, facilitating clamping onto the ear. For example, Chinese utility model patent CN218976808U discloses a two-end clip-on Bluetooth earphone, comprising: a shell having a first end and a second end connected by the waist end; and a sound guiding structure connecting the internal spaces of the first and second ends. When using the earphone, the two ends can be pried open and elastically clamped onto the ear, without needing to be inserted into the ear canal.

[0003] Although clip-on headphones are ergonomically designed to fit different ear shapes, existing clip-on headphones lack sufficient flexibility and adjustability, and cannot perfectly fit everyone's ear, especially for users with smaller or unusually shaped ears. Secondly, because clip-on headphones are typically larger than regular Bluetooth headphones, their charging cases are also larger, which can create a feeling of inconvenience when putting the case in a pocket or bag, thus affecting portability. Utility Model Content

[0004] In order to overcome the shortcomings of the existing technology, this utility model provides an ear clip Bluetooth headset to solve the problem that ear clip Bluetooth headsets are difficult to fit the ear canals of different users, resulting in low wearing comfort and poor portability.

[0005] The technical solution of this utility model is as follows: A clip-on Bluetooth earphone includes a cavity, an earphone body, and a connecting part disposed between the earphone body and the cavity. The connecting part includes a flexible shell, a deformable material, and a flexible circuit. The deformable material and the flexible circuit are both disposed within the flexible shell. The connecting part switches between a flattened state and a bent state through deformation. When there is no external force or the applied external force is less than the critical deformation force, the connecting part remains in the current state. When the connecting part is in the bent state, an ear clamping space for clamping the auricle is formed between the cavity and the earphone body. The size of the ear clamping space is adjusted by changing the relative position between the cavity and the earphone body by bending the connecting part, so as to clamp the auricle.

[0006] Furthermore, the cross-section of the deformable material at its end is arc-shaped.

[0007] Furthermore, the connecting portion is provided with a first mounting hole and a second mounting hole at both ends, the cavity portion is provided with a first fastener and a first threaded hole for cooperating with the first fastener, the earphone body portion is provided with a second fastener and a second threaded hole for cooperating with the second fastener, one end of the first fastener passes through the first mounting hole and is threadedly connected to the first threaded hole, and one end of the second fastener passes through the second mounting hole and is threadedly connected to the second threaded hole.

[0008] Furthermore, the cavity is provided with a circuit board, a battery module and a charging module, and a charging hole is provided on the cavity. The charging module and the charging hole are respectively arranged, and the circuit board and the charging module are both electrically connected to the battery module.

[0009] Furthermore, a speaker unit is provided inside the headphone body, and the speaker unit and the circuit board are electrically connected through the flexible circuit.

[0010] Furthermore, the outer wall of the cavity portion is provided with a first contact surface that contacts the back of the human ear, and the outer wall of the earphone body portion is provided with a second contact surface that contacts the front of the human ear. The first contact surface is a concave arc surface, and the second contact surface is a spherical surface.

[0011] Furthermore, the cavity is provided with two opposing first limiting protrusions, and there is a gap between the two first limiting protrusions for the flexible line to pass through. The two first limiting protrusions respectively surround two corners of one end of the connecting part.

[0012] Furthermore, a second limiting protrusion is provided inside the headphone body. The second limiting protrusion includes a first side, a second side, and a third side. The first side and the third side are perpendicular to the second side. The first side, the second side, and the third side surround and form an accommodating cavity. The other end of the connecting part is inserted into the accommodating cavity. The sidewall of the second limiting protrusion is provided with a through hole for the flexible circuit to pass through.

[0013] Furthermore, the ear-clamp Bluetooth headset is either semi-in-ear or non-in-ear.

[0014] In addition, this utility model also provides an earphone case, including a case body, wherein a receiving groove is provided in the case body for placing the above-mentioned clip-on Bluetooth earphone.

[0015] The advantages of this utility model based on the above solution are as follows:

[0016] (1) The present invention provides a clip-on Bluetooth earphone, comprising a cavity, an earphone body, and a connecting part disposed between the cavity and the earphone body. The connecting part includes a flexible shell, a deformable material, and a flexible circuit, both of which are disposed within the flexible shell. The structural design of the connecting part allows it to switch between a bent state and a flattened state. When there is no external force or the applied external force is less than the critical deformation force, it can maintain its current state (bent state or flattened state). By bending the connecting part, the connecting part is placed in a bent state, thereby changing the relative position between the cavity and the earphone body. This allows the cavity and the earphone body to fit tightly to different ear shapes. By changing the degree of bending of the connecting part, the ear clamping space formed between the cavity and the earphone body is adjusted, ensuring that the clip-on Bluetooth earphone can be securely clamped on the ear, reducing the risk of falling off, and also improving wearing comfort.

[0017] (2) The clip-on Bluetooth earphone provided by this utility model allows the connecting part to be switched from a bent state to a flat state when the earphone is not in use. Since the deformable material can change shape as needed, the clip-on Bluetooth earphone can be presented in a relatively flat form, allowing two clip-on Bluetooth earphones to be stacked in a small earphone case, thereby reducing the volume of the earphone case. Secondly, the flexible shell surrounding the deformable material and flexible circuit not only provides physical protection for the internal components, preventing damage to the deformable material and flexible circuit in daily use, but also increases the flexibility of the connecting part, allowing the connecting part to switch between a bent state and a flat state. In addition, the flexible shell can also provide a certain amount of friction to help the clip-on Bluetooth earphone hang on the ear.

[0018] (3) The present invention provides a clip-on Bluetooth headset with the use of flexible circuitry, which has high flexibility and fatigue resistance, allowing it to bend along with the deformable material without affecting signal transmission, providing a stable and reliable signal transmission path for the clip-on Bluetooth headset. Even if the connection part is frequently deformed, the electronic circuitry inside the headset will not be damaged, thus extending the service life of the clip-on Bluetooth headset. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the clip-on Bluetooth headset in the flattened state according to an embodiment of the present utility model.

[0021] Figure 2 This is a schematic diagram of the ear-clip Bluetooth headset in a bent state according to an embodiment of the present utility model.

[0022] Figure 3 This is one of the cross-sectional views of the clip-on Bluetooth headset in this utility model embodiment;

[0023] Figure 4 for Figure 3 A magnified view of part A;

[0024] Figure 5 This is a second cross-sectional view of the clip-on Bluetooth headset in this embodiment of the present utility model;

[0025] Figure 6 This is a bottom view of the clip-on Bluetooth headset in an embodiment of the present utility model;

[0026] Figure 7 This is a schematic diagram showing the variation of strain energy E with curvature κ in the connecting part of this utility model embodiment.

[0027] In the figure, 1 is the cavity; 11 is the first contact surface; 12 is the first limiting protrusion; 13 is the charging port; 2 is the earphone body; 21 is the second contact surface; 22 is the second limiting protrusion; 221 is the first side; 222 is the second side; 223 is the third side; 3 is the connecting part; 31 is the flexible shell; 32 is the deformable material; 33 is the flexible circuit; 4 is the first fastener; 5 is the second fastener. Detailed Implementation

[0028] The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following detailed description of the embodiments and the accompanying drawings are used to illustrate the principles of the present invention by way of example, but should not be used to limit the scope of the present invention, that is, the present invention is not limited to the described embodiments.

[0029] To better understand this utility model, the following description, in conjunction with the accompanying drawings and embodiments, will further illustrate the present utility model:

[0030] See Figures 1-4As shown, the present invention provides a clip-on Bluetooth headset, including a cavity part 1, a headset body part 2, and a connecting part 3 connected between the cavity part 1 and the headset body part 2. The connecting part 3 can be deformed to switch between a bent state and a flattened state. When there is no external force or the applied external force is less than the critical deformation force, the connecting part can maintain the current state. That is, when the connecting part 3 is in the bent state, it can maintain the bent state when there is no external force or the applied external force is less than the critical deformation force. When the connecting part 3 is in the flattened state, it can maintain the flattened state when there is no external force or the applied external force is less than the critical deformation force.

[0031] When the connecting part 3 is in a bent state, an ear clamping space is formed between the cavity part 1 and the earphone body part 2 for clamping the ear. By bending the connecting part 3 to change the relative position between the cavity part 1 and the earphone body part 2, the size of the ear clamping space is adjusted to clamp the ear.

[0032] Specifically, the connecting part 3 includes a flexible shell 31, a deformable material 32, and a flexible circuit 33, both of which are disposed within the flexible shell 31. The structural design of the connecting part 3 allows it to switch between a bent and flattened state. By bending the connecting part 3, it is placed in a bent state, thereby changing the relative position between the cavity part 1 and the earphone body part 2. This allows the cavity part 1 and the earphone body part 2 to fit snugly to different ear shapes. By changing the degree of bending of the connecting part 3, the ear clamping space formed between the cavity part 1 and the earphone body part 2 is adjusted, ensuring that the ear-clamping Bluetooth earphone can be securely clamped to the ear, reducing the risk of falling out, and also improving wearing comfort.

[0033] In this embodiment, the flexible shell 31 is made of materials including but not limited to silicone, the deformable material 32 is a shape memory metal spring, and the flexible circuit 33 is an FPC cable.

[0034] See Figure 1 and Figure 2As shown, when the clip-on Bluetooth earphones are not needed, the connecting part 3 can be switched from a bent state to a flat state. Since the deformable material 32 can change shape as needed, the clip-on Bluetooth earphones can be folded into a relatively flat shape, reducing the space occupied by the clip-on Bluetooth earphones in the height direction. This allows two clip-on Bluetooth earphones to be stacked in the earphone case, thereby reducing the volume of the earphone case. Secondly, the flexible shell 31, which wraps around the deformable material 32 and the flexible circuit 33, not only provides physical protection for the internal components, preventing damage to the deformable material 32 and the flexible circuit 33 during daily use, but also increases the flexibility of the connecting part 3, allowing it to switch between a bent state and a flat state. In addition, the flexible shell 31 can also provide a certain amount of friction to help the clip-on Bluetooth earphones hang on the ear.

[0035] In one embodiment, the cross-section of the end of the deformable material 32 is arc-shaped. The arc-shaped structure design gives the deformable material 32 two opposing sidewalls, which improves its bending strength. This allows the deformable material 32 to remain in a flat state when it switches from a bent state to a flat state under the action of external force.

[0036] It is worth mentioning that the flexible circuit 33 is an FPC cable. The FPC cable has high flexibility and fatigue resistance, allowing it to bend along with the deformable material 32 without affecting signal transmission. This provides a stable and reliable signal transmission path for the clip-on Bluetooth headset. Even if the connection part 3 is frequently deformed, the electronic circuit inside the headset will not be damaged, thus extending the service life of the clip-on Bluetooth headset.

[0037] The connecting part 3 provided by this utility model includes a flexible shell 31, a deformable material 32, and a flexible circuit 33, both of which are disposed within the flexible shell 31. This design enables the connecting part 3 to have a bistable structure. The deformation principle of the connecting part 3 is as follows:

[0038] The connecting part 3 contains residual stress, which causes its internal strain energy E to have two minimum values. Let the radius of curvature of the axis of the connecting part 3 be r, then the curvature κ in the axial direction is 1 / r. When the connecting part 3 switches from a flattened state to a bent state, the radius r changes from infinity to r², and the curvature κ changes from 0 to κ², as shown below. Figure 7As shown, the strain energy E inside the connecting part 3 first increases with the increase of κ, and then rapidly decreases to the minimum value E2. The straight and rolled state of the connecting part 3 corresponds to the minimum values ​​of the two energies E at A and C, which are both stable states. Therefore, the connecting part 3 has a bistable structure. When the connecting part 3 changes from straight to curved, it must pass through an energy high point B, called the energy barrier. Under the action of external force, the connecting part 3 crosses the energy barrier point B. Since the BC segment is steep downward, the connecting part 3 rapidly releases strain energy and quickly deforms and rolls up. When the deformation is constrained, for example, when the size of the auricle is large, the curvature is limited to not be greater than κm. At this time, the energy of the connecting part 3 is maintained at point D, so that the ear clip Bluetooth headset can be firmly clamped on the auricle, reducing the risk of falling off. Secondly, it can fit different auricle shapes, thereby improving the wearing comfort.

[0039] In this embodiment, the critical deformation force is the external force corresponding to the energy high point B mentioned above, that is, the minimum external force required to cause the connecting part 3 to undergo reversible plastic deformation, which can also be understood as the external force required to make the connecting part 3 overcome the energy barrier.

[0040] See Figure 3 As shown, the connecting part 3 has a first mounting hole and a second mounting hole at both ends, the cavity part 1 has a first fastener 4 and a first threaded hole for cooperating with the first fastener 4, the earphone body part 2 has a second fastener and a second threaded hole for cooperating with the second fastener, one end of the first fastener 4 passes through the first mounting hole and is threadedly connected to the first threaded hole, and one end of the second fastener passes through the second mounting hole and is threadedly connected to the second threaded hole.

[0041] Specifically, through the threaded engagement of the first fastener 4 with the first threaded hole and the second fastener with the second threaded hole, a stable mechanical connection is formed between the connecting part 3, the cavity part 1, and the earphone body part 2. Compared with other non-threaded connection methods (such as buckles, adhesives, etc.), this connection method has higher strength and stability, can withstand greater external forces, and ensures that the clip-on Bluetooth earphone is not easily loosened or damaged during wearing and use.

[0042] It is worth mentioning that, since the connecting part 3 needs to frequently switch between a bent state and a flattened state, the threaded connection design can better adapt to this deformation, ensuring that both ends of the connecting part 3 always remain tight, and avoiding loosening of the connection due to deformation.

[0043] In this embodiment, a circuit board, a battery module, and a charging module are disposed inside the cavity 1. A charging hole 13 is provided on the cavity 1, and the charging module and the charging hole 13 are correspondingly disposed. Both the circuit board and the charging module are electrically connected to the battery module. A speaker unit is disposed inside the earphone body 2, and the speaker unit and the circuit board are electrically connected through a flexible circuit 33.

[0044] Specifically, when the clip-on Bluetooth earbuds are placed in the earphone case, the charging port 13 on the earbuds corresponds to the metal contacts inside the earphone case. The metal contacts pass through the charging port 13 and are electrically connected to the charging module. The charging module receives electrical energy from the power source inside the earphone case and converts it into a form of electrical energy (usually direct current) suitable for charging the battery module of the clip-on Bluetooth earbuds through its internal circuitry, thereby charging the earbuds. It should be noted that this embodiment does not involve the design of the internal circuitry of the clip-on Bluetooth earbuds; therefore, this embodiment will not elaborate on it.

[0045] See Figure 2 As shown, the outer wall of the cavity portion 1 has a first contact surface 11 that contacts the back of the human ear, and the outer wall of the earphone body portion 2 has a second contact surface 21 that contacts the front of the human ear. The first contact surface 11 is a concave arc surface, and the second contact surface 21 is a spherical surface. Specifically, since everyone's ear shape and size are different, the first contact surface 11 is a concave arc surface, which can conform to the natural curve of the back of the human ear, so that the earphone can fit snugly against the ear when worn, reducing gaps and discomfort. Secondly, the second contact surface 21 is a spherical surface, which easily forms a smooth contact with the front of the ear, thereby improving wearing comfort.

[0046] In this embodiment, both the first fastener 4 and the second fastener are screws, and both the cavity part 1 and the earphone body part 2 are made of hard plastic.

[0047] See Figure 5 As shown, the cavity 1 has two opposing first limiting protrusions 12, with a gap between them for the flexible circuit 33 to pass through. The two first limiting protrusions 12 also wrap around two corners of one end of the connecting portion 3. The earphone body 2 has a second limiting protrusion 22, which includes a first side surface 221, a second side surface 222, and a third side surface 223. The first side surface 221 and the third side surface 223 are perpendicular to the second side surface 222. The first side surface 221, the second side surface 222, and the third side surface 223 form a receiving cavity. The other end of the connecting portion 3 is inserted into the receiving cavity. The side wall of the second limiting protrusion 22 has a through hole for the flexible circuit 33 to pass through.

[0048] In this embodiment, the clip-on Bluetooth headset can be either a semi-in-ear design or a non-in-ear design. Those skilled in the art can design the specific structure of the headset body 2 according to actual production needs to achieve a semi-in-ear or non-in-ear design; this embodiment will not elaborate further.

[0049] It should be noted that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the product is usually placed in during use, or the orientation or positional relationship that is commonly understood by those skilled in the art, or the orientation or positional relationship that the product is usually placed in during use. It is only for the purpose of facilitating the description of this application and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this application.

[0050] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

[0051] The present utility model patent has been described above with reference to the accompanying drawings. Obviously, the implementation of the present utility model patent is not limited to the above-described manner. Any improvements made by adopting the inventive concept and technical solution of the present utility model patent, or the direct application of the inventive concept and technical solution of the present utility model patent to other occasions without modification, are all within the protection scope of the present utility model.

Claims

1. An ear-clamping Bluetooth earphone, comprising a cavity part (1), an earphone body part (2) and a connecting part (3) arranged between the earphone body part (2) and the cavity part (1), characterized in that: The connecting part (3) comprises a flexible shell (31), a deformation material (32) and a flexible line (33), the deformation material (32) and the flexible line (33) are arranged in the flexible shell (31), the connecting part (3) is switched between a flat state and a curved state by deformation, and the connecting part (3) remains in the current state when there is no external force or the applied external force is less than the critical deformation force, when the connecting part (3) is in the curved state, an auricle clamping space for clamping the auricle is formed between the cavity part (1) and the earphone body part (2), and the size of the auricle clamping space is adjusted by bending the connecting part (3) to change the relative position between the cavity part (1) and the earphone body part (2) to clamp the auricle.

2. The behind-the-ear Bluetooth earphone of claim 1, wherein: The cross section of the end of the deformation material (32) is arc-shaped.

3. The behind-the-ear Bluetooth earpiece of claim 1, wherein: The connecting part (3) is provided with a first mounting hole and a second mounting hole at two ends respectively, the cavity part (1) is provided with a first fastener (4) and a first threaded hole for cooperating with the first fastener (4), the earphone body part (2) is provided with a second fastener and a second threaded hole for cooperating with the second fastener, one end of the first fastener (4) passes through the first mounting hole and is threadedly connected with the first threaded hole, and one end of the second fastener passes through the second mounting hole and is threadedly connected with the second threaded hole.

4. The behind-the-ear Bluetooth earpiece of claim 1, wherein: The cavity part (1) is provided with a line board, a battery module and a charging module, the cavity part (1) is provided with a charging hole (13), the charging module and the charging hole (13) are correspondingly arranged, and the line board and the charging module are electrically connected with the battery module.

5. A behind-the-ear Bluetooth earpiece as claimed in claim 4, characterized in that: The earphone body part (2) is provided with a loudspeaker unit, and the loudspeaker unit and the line board are electrically connected through the flexible line (33).

6. The behind-the-ear Bluetooth earpiece of claim 1, wherein: The outer wall of the cavity part (1) is provided with a first contact surface (11) in contact with the back of the human auricle, the outer wall of the earphone body part (2) is provided with a second contact surface (21) in contact with the front of the human auricle, the first contact surface (11) is a concave arc surface, and the second contact surface (21) is a spherical surface.

7. The behind-the-ear Bluetooth earpiece of claim 1, wherein: The cavity part (1) is provided with two oppositely arranged first limiting protrusions (12), the two first limiting protrusions (12) have a gap for the flexible line (33) to pass through, and the two first limiting protrusions (12) wrap around two corners of one end of the connecting part (3) respectively.

8. The behind-the-ear Bluetooth earpiece of claim 1, wherein: The earphone body part (2) is internally provided with a second limiting protrusion (22), the second limiting protrusion (22) comprises a first side (221), a second side (222) and a third side (223), the first side (221) and the third side (223) are perpendicular to the second side (222) respectively, the first side (221), the second side (222) and the third side (223) surround to form a containing cavity, the other end of the connecting part (3) is inserted in the containing cavity, the side wall of the second limiting protrusion (22) is provided with a through hole for the flexible circuit (33) to pass through.

9. The behind-the-ear Bluetooth earpiece of claim 1, wherein: The clip-on Bluetooth earphone is semi-in-ear or non-in-ear.

10. An earphone box, comprising a box body, a containing groove is arranged in the box body, characterized in that, The containing groove is used for placing the clip-on Bluetooth earphone of any one of claims 1-9.

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