Earphone box

Abstract

The utility model relates to an earphone box. The earphone box comprises a shell, an earphone storage bin, a communication device and at least one fastener, a cavity is formed in the shell; a mounting hole is formed in the earphone storage bin, and the earphone storage bin is fixed with the shell; the communication device is arranged in the cavity and located on one side of the earphone storage bin in the first direction. The fastener is mounted in the mounting hole, so that the communication device and the earphone storage bin are fixed; wherein the fastener is electrically connected with the communication device, so that the fastener can transmit an external electric signal to the communication device and / or radiate an electric signal generated by the communication device to the outside. By utilizing the electrical property of the fastener, the fastener becomes a signal transmission antenna of the communication device, so that the signal transmission effect of the communication device is greatly improved on the basis of not increasing the cost and other devices; in addition, the fastener is used for replacing an antenna, so that the occupied space is reduced, and an installation space can be provided for arrangement of more internal components of the earphone box.

Description

Technical Field

[0001] This application relates to the field of headphone product technology, specifically to a headphone case. Background Technology

[0002] With the rise of wireless headphones and their diverse functions, wireless headphones have become an essential item used frequently in daily life. Similar to the headphones themselves, the charging case for wireless headphones also needs to achieve wireless communication with external devices. This means that wireless headphones inevitably require a high-efficiency communication amplification device inside.

[0003] In related technologies, this communication performance amplification device is generally an independent antenna, which occupies a lot of internal space in the headphone case and affects the portability of the headphone case. How to balance portability and communication performance has become a design challenge. Utility Model Content

[0004] In view of this, the embodiments of this application aim to provide an earphone case that can balance portability and communication performance.

[0005] An embodiment of this application provides an earphone case, including a shell, an earphone storage compartment, a communication device, and at least one fastener; the shell forms a cavity; the earphone storage compartment forms a mounting hole, and the earphone storage compartment is fixed to the shell; the communication device is disposed within the cavity and located on one side of the earphone storage compartment along a first direction; the fastener is installed in the mounting hole, thereby fixing the communication device to the earphone storage compartment; wherein, the fastener is electrically connected to the communication device, so that the fastener can transmit external electrical signals to the communication device and / or radiate electrical signals generated by the communication device to the outside.

[0006] In some embodiments, the earphone case includes a circuit board, the communication device is disposed on the circuit board, and fasteners fix the circuit board to the earphone storage compartment, wherein the circuit board forms a clearance area at the position corresponding to the fasteners.

[0007] In some embodiments, the minimum distance between the boundary of the clearance area and the fastener is not less than 2.5 mm.

[0008] In some embodiments, the earphone storage compartment includes a connecting post extending along the first direction; a portion of the fastener is located within the connecting post, and an insulating area is formed on the circumferential outer side of the connecting post.

[0009] In some embodiments, the fastener is a screw, and the length of the fastener is greater than or equal to 12 mm.

[0010] In some embodiments, the diameter of the fastener is greater than or equal to 2.5 mm.

[0011] In some embodiments, the fastener surface is coated with a conductive coating, the material of which is silver, aluminum, carbon-based conductive coating or polymer conductive coating.

[0012] In some embodiments, at least two fasteners are respectively disposed at both ends of the communication device along a second direction, which is perpendicular to the first direction.

[0013] In some embodiments, the earphone storage compartment forms two storage cavities distributed along the second direction.

[0014] In some embodiments, the earphone case includes a display panel disposed on the outer surface of the housing along a third-direction upward direction and connected to the communication device, for displaying the working status of the earphone case.

[0015] In some embodiments, the earphone case includes an operation panel disposed on the outer surface of the housing along a third direction and connected to the communication device, for controlling the operating state of the earphone case. The third direction is perpendicular to both the first direction and the second direction.

[0016] In one embodiment, the earphone case includes a battery disposed within the cavity and located at the midpoint of the cavity along the second direction.

[0017] The earphone case provided in this application embodiment utilizes the electrical properties of the fastener itself to make the fastener a signal transmission antenna for the communication device, which greatly increases the signal transmission effect of the communication device without increasing costs or other components; in addition, using the fastener to replace the antenna reduces space occupation and provides installation space for more internal components of the earphone case. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of an exploded headphone case according to an embodiment of this application;

[0019] Figure 2 This is an exploded view of the side view of an earphone case according to an embodiment of this application;

[0020] Figure 3 For along Figure 2 A schematic diagram of the cross-section cut by the cutting line AA in the diagram;

[0021] Figure 4 For along Figure 2 A schematic diagram of the cross section cut by the cutting line BB in the diagram.

[0022] Explanation of reference numerals in the attached figures

[0023] Earphone case 100; outer shell 110; cavity 110a; outer shell 111; cover plate 112; insulating area 110b; earphone storage compartment 120; mounting hole 120a; connecting post 121; storage cavity 120b; communication device 130; fastener 140; circuit board 150; clearance area 150a; wireless earphone 160; display panel 170; operation panel 180; battery 190. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0025] The specific technical features described in the specific embodiments can be combined in any suitable manner without contradiction. For example, different combinations of specific technical features can form different embodiments and technical solutions. To avoid unnecessary repetition, the various possible combinations of the specific technical features in this application will not be described separately.

[0026] In the following description, the terms "first," "second," etc., are used merely to distinguish different objects and do not indicate that the objects have the sameness or relationship. It should be understood that the directional descriptions "above," "below," "outside," and "inside" refer to the directional positions under normal use, while "up," "down," "left," and "right" refer to the left and right directions shown in the corresponding diagrams, which may or may not be the left and right directions under normal use.

[0027] In the description of this application, the orientation or positional relationship of "first direction", "second direction" and "third direction" is based on the accompanying drawings. Figures 1-4 The orientations or positional relationships shown in the figures are as follows: "first direction" is the direction indicated by arrow L1 in the figures, "second direction" is the direction indicated by arrow L2 in the figures, and "third direction" is the direction indicated by arrow L3 in the figures. It should be understood that these orientation terms are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. In the description of this application, the terms "first," "second," and "third" are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0028] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. "A plurality of" means two or more.

[0029] With the rise of wireless headphones and their diverse functions, wireless headphones have become an essential item used frequently in daily life. Similar to the headphones themselves, the charging case for wireless headphones also needs to achieve wireless communication with external devices. This means that wireless headphones inevitably require a high-efficiency communication amplification device inside.

[0030] This communication performance amplification device is generally an independent antenna. However, in related technologies, independent antennas suffer from low signal transmission efficiency and a short maximum transmission distance. Analysis reveals two main reasons for this: First, the independent antenna itself is too small, which is detrimental to signal radiation; second, the numerous and relatively concentrated electronic components and wiring harnesses inside the headphone box generate interfering electromagnetic fields during operation, which also significantly impacts the signal transmission efficiency of the independent antenna.

[0031] For these two reasons, improving the signal transmission efficiency of the headphone case can only be achieved by addressing these two points:

[0032] First, increase the volume of the radiating body of the communication performance amplification device.

[0033] Second, optimize the arrangement of electronic components and wiring harnesses inside the headphone case.

[0034] In the first approach, the communication performance amplification device would occupy more internal space in the headphone case. However, as people increasingly demand portability for wireless headphones, the size of the headphone case also needs to be reduced, making excessive space undesirable.

[0035] Therefore, a completely new earphone case must be designed by combining the second approach, while strictly controlling the size of the communication performance amplification device.

[0036] In view of this, refer to Figure 1This application aims to provide an earphone case 100, including a shell 110, an earphone storage compartment 120, a communication device 130, and at least one fastener 140. The shell 110 has a cavity 110a. The earphone storage compartment 120 has a mounting hole 120a, and the earphone storage compartment 120 is fixed to the shell 110. The communication device 130 is disposed in the cavity 110a and located on one side of the earphone storage compartment 120 along a first direction. The fastener 140 is installed in the mounting hole 120a, thereby fixing the communication device 130 to the earphone storage compartment 120. The fastener 140 is electrically connected to the communication device 130, so that the fastener 140 can transmit external electrical signals to the communication device 130 and / or radiate the electrical signals generated by the communication device 130 to the outside.

[0037] Specifically, the outer casing 110 includes a casing 110 body and a cover plate 112. The casing 110 body has an opening facing upwards in a first direction, and the cover plate 112 covers the opening. The cover plate 112 and the casing 111 together form a cavity 110a. The communication device 130 is disposed in the cavity 110a at a position facing downwards in the first direction, while the earphone storage compartment 120 is disposed in the cavity 110a at a position facing upwards in the first direction. The fastener 140 is made of conductive material and extends in the first direction. One end of the fastener 140 in the first direction is installed in the mounting hole 120a, and the other end in the first direction is fixed to the communication device 130.

[0038] Thus, since the fastener 140 itself is conductive, when the communication device 130 supplies a high-current containing an electrical signal to the fastener 140, a corresponding electromagnetic field will be generated around the fastener 140. This electromagnetic field can propagate out of the fastener 140 into space, thereby enabling signal propagation. Similarly, when an external device changes the electromagnetic field around the fastener 140, the fastener 140 can also generate a high-current containing a corresponding electrical signal, which is transmitted to the communication device 130 to achieve signal reception. In other words, the fastener 140 itself can act as a communication performance amplification device for the headphone case 100. In this way, the fastener 140 can both fix the communication device 130 and enhance the efficiency of signal communication. In addition, using the fastener 140 to replace the independent antenna in related technologies reduces space occupation and provides installation space for more internal components of the headphone case 100.

[0039] It should be noted that the use of fastener 140 to replace the independent antenna in this application does not mean that fastener 140 can replace auxiliary components such as impedance components or filtering components that are matched with the independent antenna. These auxiliary components still need to be installed on the communication device 130.

[0040] In some embodiments, refer to Figure 1 and Figure 3The earphone case 100 includes a circuit board 150, a communication device 130 is disposed on the circuit board 150, and a fastener 140 fixes the circuit board 150 to the earphone storage compartment 120. The circuit board 150 forms a clearance area 150a at the position corresponding to the fastener 140.

[0041] Specifically, the method of fixing the fastener 140 to the circuit board 150 is not limited in this application. In one embodiment, one end of the fastener 140 is soldered to the circuit board 150, and the soldering point is within the clearance area 150a (e.g., located at the geometric center of the clearance area 150a). In another embodiment, a through hole is formed on the circuit board 150, and the fastener 140 is installed in the connection hole through the through hole, and the geometric center of the through hole is located within the clearance area 150a (e.g., coincides with the geometric center of the clearance area 150a). Here, the clearance area 150a refers to an area in which only circuit traces for transmitting electrical signals by the fastener 140 are provided, and other circuit traces or other electronic components are prohibited from being provided in the clearance area 150a.

[0042] Thus, setting a clearance zone 150a ensures that the radiation direction of the electrical signal is not blocked or shielded by electronic components, and also reduces the interference of electromagnetic fields generated by other electronic components in the headphone box 100 on the electrical signal.

[0043] Understandably, to effectively reduce communication interference from other electronic components, the area of ​​the clearance zone 150a in the projection plane perpendicular to the first direction should cover and extend beyond the projection of the fastener 140. This ensures that the electric and magnetic fields generated around the fastener 140 avoid interference from other electronic components. The greater the minimum distance between the boundary of the clearance zone 150a and the fastener 140, the better the anti-interference effect of the communication electromagnetic field formed around the fastener 140.

[0044] In some embodiments, the minimum distance between the boundary of the clearance area 150a and the fastener 140 is not less than 2.5 mm. By controlling the minimum distance between the boundary of the clearance area 150a and the fastener 140 at this distance, the communication electromagnetic field generated by the fastener 140 and the interference electromagnetic field generated by other electronic components can be effectively isolated.

[0045] In some embodiments, combined with Figure 1 and Figure 2 The earphone storage compartment 120 includes a connecting post 121 extending in a first direction; a portion of the fastener 140 is located within the connecting post 121, and an insulating region 110b is formed on the circumferential outer side of the connecting post 121.

[0046] Specifically, the connecting post 121 is made of insulating material, and the connecting hole is formed within the connecting post 121. The insulating region 110b is a portion of the space within the cavity 110a formed by the extension of the area of ​​the clearance region 150a along the first direction, and the geometric center of the projection plane of the insulating region 110b in the first direction coincides with the geometric center of the clearance region 150a. Apart from the fastener 140 and the circuit traces for transmitting electrical signals thereto, no other electronic components or circuit traces are disposed within the insulating region 110b.

[0047] Understandably, the electromagnetic field generated by the fastener 140 is formed within the insulating region 110b, and the transmission of electrical signals between the earphone case 100 and the outside world is also within the insulating region 110b. Furthermore, setting the insulating region 110b can further reduce interference from other electronic components or circuit traces.

[0048] In some embodiments, the fastener 140 is a screw with threads formed on its surface. Correspondingly, threads are also formed inside the connecting hole. It should be noted that the threads formed on the surface of the fastener 140 are conductive, thus the threads themselves can also serve as an extension of the signal radiator of the fastener 140, increasing signal transmission efficiency. The threads inside the connecting hole are not conductive, thereby reducing interference with signal transmission.

[0049] Understandably, within the range of signal wavelengths, the longer the fastener 140 is and the larger its diameter, the better the signal transmission effect. Therefore, when designing the size of the fastener 140, the signal transmission effect and the space occupied by the fastener 140 must be balanced.

[0050] In related technologies, the length of fasteners used to fix communication devices only needs to be slightly longer than the thickness of the circuit board, generally less than 2.5 mm, and their diameter is generally less than 1.5 mm. This is far from meeting the transmission requirements of the 2.4 GHz signal used by conventional wireless network protocols or Bluetooth protocols. Therefore, in some embodiments, the length of fastener 140 is greater than or equal to 12 mm; in other embodiments, the diameter of fastener 140 is greater than or equal to 2.5 mm. In this way, fastener 140 can achieve better signal transmission while strictly controlling its occupied space.

[0051] In some embodiments, the surface of the fastener 140 is coated with a conductive coating, the material of which is silver, aluminum, carbon-based conductive coating or polymer conductive coating.

[0052] Specifically, the material of the fastener 140 body is generally carbon steel, stainless steel, etc. Electroplating a conductive coating on the surface of the fastener 140 can, on the one hand, further enhance the conductivity of the fastener 140 to generate a stronger communication electromagnetic field and improve the signal transmission effect; on the other hand, it can also form a protective layer on the surface of the fastener 140 to reduce the occurrence of corrosion and rust.

[0053] Thus, by replacing the independent antenna in the related technology with fastener 140, the task of increasing the radiating body volume of the communication performance amplification device has been completed while strictly controlling the internal space of the earphone box 100. The next step is to optimize the arrangement of other electronic components inside the earphone box 100.

[0054] Generally speaking, refer to Figure 1 and Figure 2 The electronic components housed in the earphone case 100 mainly include the wireless earphones 160, the display panel 170, the operation panel 180, and the battery 190. Since the display panel 170, operation panel 180, and battery 190 are all composed of electronic components, they inevitably generate interfering electromagnetic fields during operation, including when the wireless earphones 160 are stored in the earphone storage compartment 120. Furthermore, for user convenience, the earphone storage compartment 120, display panel 170, and operation panel 180 occupy a relatively large space; and to ensure the earphone case 100's battery life, the battery 190 also occupies a relatively large space. This presents challenges to the arrangement of the fasteners 140, the clearance area 150a, and the insulation area 110b inside the earphone case 100.

[0055] Based on this, in some embodiments, reference is made to Figure 3 There are at least two fasteners 140, which are respectively disposed at both ends of the communication device 130 along the second direction, which is perpendicular to the first direction.

[0056] Specifically, in combination Figure 1 , Figure 2 and Figure 4The communication device 130 is mounted on a rectangular circuit board 150, the long side of which extends along a second direction. Fasteners 140 are located at opposite ends of the circuit board 150 extending along the second direction. Similarly, clearance areas 150a are also located at opposite ends of the circuit board 150 extending along the second direction, and insulation areas 110b are also located at opposite ends within the cavity 110a along the second direction. Thus, within the cavity 110a between the two fasteners 140 and the circuit board 150, the clearance area 150a will not cause wiring difficulties for electronic components, and the middle section of the cavity 110a in the second direction will also provide sufficient space for the installation of other components, including but not limited to the wireless earphone 160 and its earphone storage compartment 120, the display panel 170, the operation panel 180, and the battery 190.

[0057] In some embodiments, the earphone storage case 120 forms two storage cavities 120b distributed along a second direction. The storage cavities can be used to store and charge the wireless earphones 160.

[0058] Specifically, the outline of the receiving cavity 120b conforms to the outer outline of the wireless earphone 160, and a receiving hole adapted to the columnar structure of the wireless earphone 160 is formed inside the receiving cavity 120b. The receiving hole is located at the middle position of the earphone receiving cavity 120 along the second direction. It should be noted that the projected area of ​​the receiving cavity 120b in the first direction should avoid the projected area of ​​the clearance area 150a in the first direction to reduce interference of the wireless earphone 160 with communication.

[0059] In some embodiments, the headphone case 100 includes a display panel 170, which is disposed on the outer surface of the housing 110 along the third-direction upward and connected to the communication device 130, for displaying the working status of the headphone case 100. In some embodiments, the headphone case 100 includes an operation panel 180, which is disposed on the outer surface of the housing 110 along the third-direction upward and connected to the communication device 130, for controlling the working status of the headphone case 100. The third direction is perpendicular to both the first and second directions.

[0060] In one embodiment, the display panel 170 and the operation panel 180 may be respectively disposed on opposite sides of the housing 110 along a third direction; in another embodiment, the display panel 170 may be a touch screen display that integrates the function of the operation panel 180.

[0061] Specifically, the operating status of the headphone case 100 displayed on the display panel 170 is not the same as the operating status of the headphone case 100 controlled by the operation panel 180. The operating status of the headphone case 100 displayed on the display panel 170 includes, but is not limited to, the battery level of the headphone case 100, the battery level of the wireless headphones 160, the audio information being played, and the signal transmission status. The operation panel 180, on the other hand, allows users to switch the audio playback to the next or previous track, pause the audio, or resume playback, etc.

[0062] In some embodiments, the earphone case 100 includes a battery 190 disposed within a cavity 110a and located at the midpoint of the cavity 110a along a second direction.

[0063] Specifically, the battery 190 has connecting components at both ends along the first direction, which are used to connect to the wireless earphone 160 and an external power source respectively. On the one hand, it can power the wireless earphone 160, and on the other hand, it can store power from the external power source to extend the battery life of the earphone case 100.

[0064] The various embodiments / implementations provided in this application can be combined with each other without creating contradictions.

[0065] The above description is merely a preferred embodiment of this application and is not intended to limit the application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. An earphone case, characterized in that, include: An outer casing, wherein the outer casing has a cavity; An earphone storage case has mounting holes and is fixed to the outer shell; A communication device, wherein the communication device is disposed within the cavity and located on one side of the earphone storage compartment along a first direction; At least one fastener is installed in the mounting hole to secure the communication device to the earphone storage compartment. The fastener is electrically connected to the communication device so that the fastener can transmit external electrical signals to the communication device and / or radiate electrical signals generated by the communication device to the outside.

2. The earphone case according to claim 1, characterized in that, The earphone case includes a circuit board, the communication device is disposed on the circuit board, and fasteners fix the circuit board to the earphone storage compartment, wherein the circuit board forms a clearance area at the position corresponding to the fasteners.

3. The earphone case according to claim 2, characterized in that, The minimum distance between the boundary of the clearance area and the fastener shall not be less than 2.5 mm.

4. The earphone case according to claim 1, characterized in that, The earphone storage compartment includes a connecting post that extends along the first direction; A portion of the fastener is located within the connecting post, and an insulating area is formed on the circumferential outer side of the connecting post.

5. The earphone case according to claim 1, characterized in that, The fastener is a screw, and the length of the fastener is greater than or equal to 12 mm; and / or The diameter of the fastener is greater than or equal to 2.5 mm.

6. The earphone case according to claim 1, characterized in that, The fastener surface is coated with a conductive coating, the material of which is silver, aluminum, carbon-based conductive coating or polymer conductive coating.

7. The earphone case according to any one of claims 1-6, characterized in that, The fasteners are at least two respectively disposed at both ends of the communication device along a second direction, which is perpendicular to the first direction.

8. The earphone case according to claim 7, characterized in that, The earphone storage compartment forms two storage cavities distributed along the second direction.

9. The earphone case according to claim 8, characterized in that, include: The display panel is disposed on the outer surface of the housing along the third direction and connected to the communication device, and is used to display the working status of the headphone case; and / or An operation panel is disposed on the outer surface of the housing along the third direction and connected to the communication device, and is used to control the working status of the earphone case; The third direction is perpendicular to both the first direction and the second direction.

10. The earphone case according to claim 8, characterized in that, The earphone case also includes a battery disposed within the cavity and located at the midpoint of the cavity along the second direction.

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