WO2023273602A1

WO2023273602A1 - Storage box and wireless audio device assembly

Info

Publication number: WO2023273602A1
Application number: PCT/CN2022/091275
Authority: WO
Inventors: 杨崇文; 尤佳庆; 董力
Original assignee: 华为技术有限公司
Priority date: 2021-06-30
Filing date: 2022-05-06
Publication date: 2023-01-05
Also published as: CN115551243A

Abstract

The present application provides a storage box and a wireless audio device assembly. The storage box comprises a first end face, a second end face, and a peripheral side. The first end face is disposed opposite to the second end face, the peripheral side is disposed around the circumferential direction of the storage box, and the peripheral side is used for connecting to the first end face and the second end face. In the present application, the first end face is a metal surface and the second end face is a metal surface. The peripheral side comprises a first sub-peripheral side and a second sub-peripheral side, the edge of the first sub-peripheral side facing the first end face is connected to the edge of the first end face, and the first end face and the first sub-peripheral side form a first metal cover having an opening facing the second end face. The edge of the second sub-peripheral side facing the second end face is connected to the edge of the second end face, and the second end face and the second sub-peripheral side form a second metal cover having an opening facing the first end face. There is a gap between the first metal cover and the second metal cover. The proportion of the metal appearance of the storage box is relatively large, and the antenna performance of the wireless audio device assembly accommodated in the storage box is better.

Description

A storage box and a wireless audio equipment component

Cross References to Related Applications

This application claims the priority of the Chinese patent application with the application number 202110738582.3 and the application name "A Storage Box and Wireless Audio Equipment Component" submitted to the China Patent Office on June 30, 2021, the entire contents of which are incorporated herein by reference. Applying.

technical field

The present application relates to the technical field of electronic equipment, in particular to a storage box and a wireless audio equipment assembly.

Background technique

Wireless audio equipment has become a relatively fast-growing product among wearable devices, among which the development of true wireless stereo equipment (true wireless stereo, TWS) is the most prominent. Since this type of wireless audio device adopts wireless signal transmission technology and needs to meet the requirements of a lightweight design, a combination of storage boxes and wireless audio devices (such as earphones) has emerged. With the gradual maturity of the wireless audio equipment technology, consumers not only put forward higher requirements on the performance of the wireless audio equipment, but also hope that the storage box for storing the wireless audio equipment can have a more beautiful appearance design. Based on this, a storage box with a metal appearance came into being.

In some application scenarios, even if a wireless audio device is stored in a storage box, it can communicate with an external terminal device. However, metal can have a shielding effect on wireless signals, which can affect the antenna performance of wireless audio devices.

Therefore, it has become an urgent problem for those skilled in the art to provide a storage box that not only has a metal appearance effect, but also can meet the antenna performance of a wireless audio device.

Contents of the invention

The present application provides a storage box and a wireless audio equipment assembly. The storage box has a metal appearance effect and can satisfy the antenna performance of the wireless audio equipment stored in the storage box.

In a first aspect, the present application provides a storage box, which may include a first end surface, a second end surface and a peripheral side surface. Wherein, the first end surface and the second end surface are set opposite to each other, the first end surface is a metal surface, and the second end surface is a metal surface. The peripheral side may include a first sub-peripheral side and a second sub-peripheral side, the first sub-peripheral side is disposed close to the first end face, and an edge of the first sub-peripheral side facing the first end face is connected to an edge of the first end face. The side surface of the first sub-circumference is a metal surface, so that the first end surface and the side surface of the first sub-circumference form a first metal cover with an opening facing the second end surface. In addition, the second sub-circumferential side is disposed close to the second end face, and the edge of the second sub-peripheral side facing the second end face is connected to the edge of the second end face. The side surface of the second sub-circumference is a metal surface, so that the second end surface and the side surface of the second sub-circumference form a second metal cover with an opening facing the first end surface. In the present application, there is a gap between the first metal cover and the second metal cover, and the gap is arranged around the axial direction of the storage box. By adopting the storage box provided by this application, on the basis of ensuring the OTA performance of the wireless audio equipment contained in the storage box, the proportion of the metal surface of the appearance surface of the storage box can be improved to the maximum extent, thereby improving its appearance aesthetics .

In this application, the adjustment of the OTA performance of the wireless audio device accommodated in the storage box can be realized by adjusting the size of the gap. In a possible implementation of the present application, in the direction from the first end surface to the second end surface, the minimum size of the gap may be greater than or equal to 0.01mm, for example, it may be 0.1mm, 0.2mm, 0.5mm or 1mm Wait. In this way, the area of the gap can be made smaller, so that the proportion of the metal surface on the appearance surface of the storage box is larger, so as to improve the metal appearance effect of the storage box.

In addition, the specific location of the slit on the storage box is not limited. In a possible implementation of the present application, the slit can be set in the middle of the storage box in the direction from the first end surface to the second end surface, so as to improve The appearance of the storage box is beautiful.

The storage box may generally include a lid and a body, and the lid and the body may be fastened together to form a closed space between the lid and the body. In order to make the storage box be used for accommodating wireless audio equipment, an accommodating slot can be provided in the above-mentioned closed space of the storage box, and the accommodating slot can be used for accommodating wireless audio equipment. In addition, the accommodating slots can be set in one-to-one correspondence with the wireless audio devices that can be accommodated in the storage box, so that each wireless audio device can be accommodated in a corresponding accommodating slot, thereby avoiding collisions between wireless audio devices, wear and tear. In some other possible implementations of the present application, only one accommodating slot may be provided in the closed space of the storage box, and the wireless audio devices that the storage box can accommodate are all set in the one accommodating slot, thereby simplifying the structure of the storage box .

In a possible implementation of the present application, the first metal cover can be formed on the box cover, and the second metal cover can be formed on the body, which can facilitate the arrangement of the first metal cover and the second metal cover on the storage box. In this implementation, the slit can be formed on both the cover and the body; or, part of the slit is formed on the cover and the other part is formed on the body, which is not specifically limited in this application.

In another possible implementation manner of the present application, a part of the first metal cover may be formed on the box cover, and another part may be formed on the body; a part of the second metal cover may be formed on the box cover, and another part may be formed on the body. In this implementation, part of the gap is formed on the box cover, and another part is formed on the body. To provide users with more choices.

In this application, the connection of the first metal cover and the second metal cover to the ground will affect the OTA performance of the wireless audio device contained in the storage box, but the OTA performance of the wireless audio device can be reduced by selecting an appropriate grounding point. influences. In addition, since the inductance has high-frequency impedance, that is, the higher the frequency, the greater the impedance it generates. Therefore, the inductance can block the antenna current. In a possible implementation manner of the present application, when connecting the first metal cover and the second metal cover to the ground point, a first inductor can be set between the first metal cover and the ground point, and the first metal cover and the second metal cover can be connected to the ground point. An inductor is connected in series, and the first metal cover is electrically connected to the ground point through the first inductor. Wherein, the inductance value of the first inductor is greater than or equal to 10nH. In addition, a second inductor may be provided between the second metal cover and the ground point, the second metal cover is connected in series with the second inductor, and the second metal cover is electrically connected to the ground point through the second inductor. Wherein, the inductance value of the second inductor is greater than or equal to 10nH. In this way, the first metal cover and the second metal cover will become suspended metal, thereby minimizing the impact of the grounding of the first metal cover and the second metal cover on the OTA performance of the wireless audio device, and even enabling the wireless audio device to transmit The wireless signal is radiated twice through the first metal cover and the second metal cover, so as to solve the shielding problem caused by the first metal cover and the second metal cover grounding and shielding antenna radiation.

In a second aspect, the present application further provides an audio equipment assembly, which includes a wireless audio equipment and the storage box of the first aspect. The wireless audio device can be, for example, an earphone, and the wireless audio device can be accommodated in a storage box.

In addition, the storage box may generally include a cover and a body, and the cover and the body may be fastened to form a closed space between the cover and the body. In order to make the storage box be used for accommodating the wireless audio equipment, an accommodating groove can be provided in the above-mentioned closed space of the accommodating box, and the wireless audio equipment can be accommodated in the accommodating groove.

In the wireless audio device component provided by the present application, the metal surface of the storage box has a relatively large proportion of the exterior surface, so the exterior appearance is good. In addition, after the wireless audio device is stored in the storage box, its OTA performance is still good, which can meet the wireless signal transmission requirements of the wireless audio device, so as to realize the connection between the wireless audio device stored in the storage box and the external terminal equipment. wireless communication.

Description of drawings

FIG. 1 is a schematic structural diagram of a storage box provided in an embodiment of the present application;

Figure 2 is an enlarged view of the local structure at A in Figure 1;

FIG. 3 is a schematic structural diagram of a wireless audio device component provided in an embodiment of the present application;

FIG. 4 is a simulation curve diagram of antenna efficiency provided by the embodiment of the present application.

Reference signs:

10-storage box; 1-the first side; 2-the second side; 3-the side of the week; 301-the side of the first sub-week; 302-the side of the second sub-week;

4-gap; 5-cover; 6-body; 20-wireless audio equipment.

detailed description

In order to facilitate the understanding of the storage box and the wireless audio device provided by the embodiment of the present application, the application scenarios thereof are firstly described below. At present, wireless audio equipment has gradually developed and matured, among which the development of true wireless stereo equipment (true wireless stereo, TWS) is the most prominent. For example, wireless audio devices can be earphones, which integrate key components such as wireless antennas, processor chips, batteries, microphones, speakers, wearing sensors, and control sensors, so that they can communicate with external terminal devices such as mobile phones through their own wireless communication functions. transmission of data. Because wireless audio equipment has the advantages of portability and wireless communication, coupled with the continuous maturity of wireless Bluetooth transmission technology, its user experience is gradually improved. In the future, it is expected to completely replace wired earphones and become an indispensable portable device in users' lives. .

In addition, in order to meet the design requirements of light and small size, the battery of wireless audio equipment is small, which can only store the power for short-term use. This requires providing a wireless audio device with a device that can charge it at any time. At present, a storage box is usually provided for the wireless audio equipment, so that the storage box and the wireless audio equipment can form a wireless audio equipment assembly for use. Among them, the storage box can perform basic functions such as storage and charging, while the transmission of wireless audio data is completed by the wireless audio device itself. In order to replenish power in time and avoid loss of wireless audio equipment, users usually carry a storage box with them.

With the gradual improvement of the consumption level of users, while requiring the storage box to realize more diversified functions, it also hopes that the storage box has a more beautiful appearance design. At present, storage boxes with a metallic texture begin to appear, and the metal appearance effect of the storage box can usually be achieved by plating a metal material layer on the appearance surface of the storage box, or directly making the storage box with a metal material.

In some application scenarios, when the wireless audio device is stored in the storage box, it can also communicate with external terminal devices. However, metal has a shielding effect on the transmission of wireless signals, which affects the antenna performance of wireless audio devices. In order to reduce the impact on the performance of the antenna of the wireless audio device, some current solutions usually choose to reduce the metal setting area of the storage box, so as to maximize the improvement of the wireless audio device by setting the partial appearance of the storage box to have a metal appearance effect. antenna performance. However, since the volume of the storage box is generally small, the area of its appearance surface is also small. How to improve the performance of the antenna of the wireless audio device and at the same time increase the ratio of the metal surface of the storage box to the total surface has become an urgent problem to be solved.

The storage box provided by this application aims to solve the above problems, so as to meet the antenna performance of the wireless audio equipment stored in the storage box by opening a small gap in the storage box, and at the same time, it can effectively increase the metal appearance of the storage box ratio to improve the appearance of the storage box.

In order to make the purpose, technical solution and advantages of the application clearer, the application will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

The terminology used in the following examples is for the purpose of describing particular examples only, and is not intended as a limitation on the present application. As used in the specification and appended claims of this application, the singular expressions "a", "an", "above", "the" and "this" are intended to also include such as "one or multiple" unless the context clearly indicates otherwise. It should also be understood that in the following embodiments of the present application, "at least one" and "one or more" refer to one, two or more than two. The term "and/or" is used to describe the relationship between associated objects, indicating that there may be three relationships; for example, A and/or B may indicate: A exists alone, A and B exist at the same time, and B exists alone, Wherein A and B can be singular or plural. The character "/" generally indicates that the contextual objects are an "or" relationship.

Reference to "one embodiment" or "some embodiments" or the like in this specification means that a particular feature, structure, or characteristic described in connection with the embodiment is included in one or more embodiments of the present application. Thus, appearances of the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in other embodiments," etc. in various places in this specification are not necessarily All refer to the same embodiment, but mean "one or more but not all embodiments" unless specifically stated otherwise. The terms "including", "comprising", "having" and variations thereof mean "including but not limited to", unless specifically stated otherwise.

Referring to FIG. 1 , FIG. 1 is a schematic structural diagram of a storage box 10 provided by an embodiment of the present application. In this embodiment, the storage box 10 can be, but not limited to, a columnar structure. Exemplarily, it can be a regular-shaped columnar structure such as a rectangular column, an elliptical column, or a cylinder, or it can also be some irregular-shaped columnar structure. The storage box 10 may include a first end surface 1 , a second end surface 2 , and a peripheral side surface 3 for connecting the first end surface 1 and the second end surface 2 . It is worth mentioning that the first end surface 1 and the second end surface 2 of the storage box 10 are two surfaces arranged opposite to each other. In the circumferential direction of the box 10, the peripheral side 3 is a continuous side. Taking the storage box 10 as an example of a rectangular column, the peripheral side 3 of the rectangular column is composed of four sides connected in sequence.

Referring to FIG. 1 , the first end surface 1 of the storage box 10 provided in this embodiment of the present application is a metal surface, and the second end surface 2 is a metal surface. In addition, the peripheral side 3 includes a first sub-peripheral side 301 and a second sub-peripheral side 302 . Wherein, the first sub-circumferential side 301 is a metal surface, the first sub-circumferential side 301 is arranged close to the first end face 1, and the edge of the first sub-perimeter side 301 facing the first end face 1 is connected to the edge of the first end face 1, so that The first end surface 1 and the first sub-perimeter side surface 301 form a first metal cover with an opening facing the direction of the second end surface 2 .

The second sub-circumferential side surface 302 is also a metal surface, and the second peripheral side surface is disposed close to the second end surface 2 . In addition, the edge of the second sub-circumferential side 302 facing the second end face 2 is connected to the edge of the second end face 2, so that the second end face 2 and the second sub-peripheral side 302 form a second side with an opening facing the first end face 1. Metal hood.

In this application, the metal materials used for the first end face 1 , the second end face 2 , the first sub-circumferential side 301 and the second sub-peripheral side 302 may be the same or different. Exemplarily, the first end face 1, the second end face 2, the first sub-perimeter side 301 and the second sub-perimeter side 302 can be made of aluminum alloy, copper alloy, galvanized steel or stainless steel with strong structural stability and remarkable metallic texture. Formed of metal alloy material.

It can be understood that, in a possible embodiment of the present application, the first metal cover and the second metal cover may be a layer structure formed on the surface of the storage box 10 by coating or coating. In some other embodiments of the present application, the structure of the storage box 10 corresponding to the first metal cover is made of metal material, and the structure of the storage box 10 corresponding to the second metal cover is made of metal material. It is sufficient as long as a metal cover with two openings facing each other can be formed.

Continuing to refer to FIG. 1 , there is a gap 4 between the first metal cover and the second metal cover. The gap 4 can be arranged around the circumference of the storage box 10 . In addition, the gap 4 can be a closed shape. For the convenience of description, in this application, the dimension of the slot 4 in the direction from the first metal cover to the second metal cover can be defined as the width of the slot 4 . In the present application, the shape of the slit 4 is not specifically limited, for example, the slit 4 can be arranged along the circumference of the storage box 10 in a shape such as a belt, a wavy line, or a serpentine.

In addition, referring to FIG. 2 , FIG. 2 is an enlarged view of a local structure at A in FIG. 1 . In the present application, the widths of the slots 4 may be the same or different. In a possible embodiment of the present application, in the circumferential direction of the storage box 10 , the minimum width of the gap 4 may be greater than or equal to 0.01 mm, for example, it may be 0.1 mm, 0.2 mm, 0.5 mm or 1 mm. In this way, the proportion of the area of the gap 4 in the appearance of the entire storage box 10 is smaller than the sum of the proportions of the first metal cover and the second metal cover, and can even be ignored. Therefore, it can be ensured that the storage box 10 has a relatively complete metal appearance effect.

In this application, the specific setting position of the slit 4 is not limited, and it can be set at any position in the direction from the first end surface 1 to the second end surface 2 of the storage box 10, as long as the first end surface 4 can be formed on the storage box 10. The metal cover and the second metal cover are sufficient. In a possible embodiment of the present application, the gap 4 can be set at the middle position of the storage box 10 in the direction from the first end surface 1 to the second end surface 2 , which is beneficial to improve the appearance of the storage box 10 . In addition, it can be understood that when the storage box 10 is a columnar structure with a regular shape, the slit 4 is provided at the middle position of the storage box 10 in the direction from the first end surface 1 to the second end surface 2, so that the first metal cover can The area is equal to the area of the second metal cover.

Referring to FIG. 3 , FIG. 3 shows a schematic structural diagram of an assembly of the wireless audio device 20 formed by accommodating the wireless audio device 20 in the storage box 10 . In the present application, the storage box 10 may include a box cover 5 and a body 6, wherein the box cover 5 and the body 6 are hingeable, so that the box cover 5 can rotate around its hinge point with the body 6 to realize the box cover 5 opening and closing. In some embodiments, the box cover 5 can also be detachably connected to the body 6 , at this time, the box cover 5 can be separated from the body 6 by removing the box cover 5 from the body 6 .

In a possible embodiment of the present application, the first metal cover can be formed on the box cover 5, the second metal cover can be formed on the body 6, and the gap 4 can be formed on both the box cover 5 and the body 6; The slit 4 can also be partly formed on the box cover 5 and the other part 5 . In this way, the arrangement of the first metal cover, the second metal cover and the gap 4 can be facilitated.

In some other embodiments of the present application, part of the first metal cover can also be formed on the box cover 5 and another part on the body 6 ; part of the second metal cover can be formed on the box cover 5 and the other part on the body 6 . It can be understood that, in this embodiment, part of the gap 4 is formed on the box cover 5 , and another part is formed on the body 6 .

Usually, the storage box 10 can also be provided with an accommodating groove (not shown in the figure). When the lid 5 and the body 6 are closed, the accommodating groove is located in the closed cavity formed by the lid 5 and the body 6 . The wireless audio device 20 can be accommodated in the accommodating slot, so that the storage box 10 can protect the wireless audio device 20 .

In addition, in a possible embodiment of the present application, the accommodating slots can be provided in a one-to-one correspondence with the wireless audio devices 20, so that each wireless audio device 20 can be accommodated in one accommodating slot. In this application, the number of accommodating slots is not specifically limited, and it can be two for example, so that one wireless audio device 20 can be accommodated in each accommodating slot, thereby avoiding the mutual interaction between the wireless audio devices 20. Wear and tear caused by friction and collision. In some other possible embodiments of the present application, the storage box 10 may also be provided with only one accommodating slot, and the accommodating slot can accommodate at least two wireless audio devices 20 , thereby simplifying the structure of the storage box 10 .

In the present application, the accommodating groove can be set at any position in the cavity formed by the cover 5 and the body 6 of the storage box 10 , and usually the accommodating groove can be set on the body 6 . The module for realizing the charging function of the storage box 10 mentioned in the above embodiment can be set in the storage slot, so that when the wireless audio device 20 is stored in the storage slot, the storage box 10 can charge the wireless audio device 20 .

In this application, although the connection of the first metal cover and the second metal cover to the ground will affect the wireless (over the air, OTA) performance of the wireless audio device 20 accommodated in the storage box 10, however, by selecting an appropriate interface The location can reduce the impact on the OTA performance of the wireless audio device 20 . In addition, since the inductance has high-frequency impedance, that is, the higher the frequency, the greater the impedance it generates. Therefore, the inductance can block the antenna current. In a possible embodiment of the present application, when the first metal cover and the second metal cover are connected to the ground point, a first inductance can be provided between the first metal cover and the ground point, and the first metal cover and the second An inductor is connected in series, and the first metal cover is electrically connected to the ground point through the first inductor. Wherein, the inductance value of the first inductor may be greater than or equal to 10nh, for example, it may be 15nH, 18nh or 22nH. In addition, a second inductor may be provided between the second metal cover and the ground point, the second metal cover is connected in series with the second inductor, and the second metal cover is electrically connected to the ground point through the second inductor. Wherein, the inductance value of the second inductor may be greater than or equal to 10nH, for example, it may be 15nH, 18nh or 22nH. In this way, the first metal cover and the second metal cover will become suspended metals, thereby minimizing the impact of the grounding of the first metal cover and the second metal cover on the OTA performance of the wireless audio device 20, and even making the wireless audio device The wireless signal transmitted by 20 is radiated out through the first metal cover and the second metal cover for the second time, so as to solve the shielding problem caused by the first metal cover and the second metal cover grounding and shielding the radiation of the antenna.

You can continue to refer to FIG. 3 . In FIG. 3 , the wireless audio device 20 is indicated by a dotted line. In this embodiment, two wireless audio devices 20 are accommodated in the storage box 10 . Referring to FIG. 4 , FIG. 4 is a simulation graph of antenna efficiency provided by an embodiment of the present application. Wherein, in Fig. 4, the antenna efficiency curve of the wireless audio device 20 placed in the free space is represented by a dotted line; the antenna efficiency of the wireless audio device 20 housed in the storage box 10 provided by the application as shown in Fig. 3 is represented by a solid line curve, wherein the gap 4 of the storage box 10 is 1 mm.

It can be seen from Figure 4 that at the frequency point of 2.4GHz, the antenna efficiency (-4.3056dB) at the position marked 3 on the antenna efficiency curve represented by the solid line is slightly lower than the mark on the antenna efficiency curve represented by the dotted line The antenna efficiency at the position of 1 (-3.3404dB), but the difference between the two is small. In addition, at the frequency point of 2.48GHz, the antenna efficiency (-5.778dB) at the position marked 4 on the antenna efficiency curve represented by the solid line is slightly lower than that at the position marked 2 on the antenna efficiency curve represented by the dotted line. Antenna efficiency (-2.9488dB), but the difference between the two is small. Therefore, if the wireless audio device 20 is housed in the storage box 10 provided by the present application, although its antenna efficiency is slightly lower than that of the wireless audio device 20 placed in a free space, it can still meet the wireless signal transmission requirements of the wireless audio device 20 .

In addition, you can refer to Table 1, which shows the results obtained after testing the OTA performance of eight wireless audio device 20 samples. In Table 1, the total radiated power (TRP) and total isotropic sensitivity (TIS) of each sample in the 0th channel, the 39th channel and the 78th channel of Bluetooth are shown. Usually, TRP can be obtained by area integrating and averaging the transmitted power of the entire radiating sphere. It reflects the transmission power of the wireless audio device 20, and is related to the transmission power of the wireless audio device 20 under conduction and the antenna radiation performance. The TIS can reflect the situation of the receiving sensitivity index of the wireless audio device 20 on the entire radiating sphere. It reflects the receiving sensitivity of the wireless audio device 20 and is related to the conduction sensitivity and antenna radiation performance of the wireless audio device 20 . In this application, the units of TRP and TIS are both dB (decibels). In order to make Table 1 concise, only the corresponding data are shown in Table 1, and the units are omitted.

In this application, sample one is a wireless audio device 20 placed in a free space (free space, FS). At this time, it can be understood that the wireless audio device 20 is not accommodated in the storage box 10 . Sample 2 adopts the storage box 10 provided by this application, and the width of the gap 4 of the storage box 10 is 4mm. In addition, the storage box 10 accommodates two wireless audio devices 20 . Sample 3 adopts the storage box 10 provided by the present application, and the width of the gap 4 of the storage box 10 is 1mm. In addition, the storage box 10 accommodates two wireless audio devices 20 . In sample four, the cover 5 has a complete metal surface, the body 6 is a non-metal storage box 10 , and two wireless audio devices 20 are accommodated in the storage box 10 . In sample five, the box cover 5 has a metal surface, and the body 6 is set as a non-metallic storage box 10, and two wireless audio devices 20 are accommodated in the storage box 10. However, in sample five, the first end surface of the storage box 10 is 1 Not covered by metallic complete domains, with a non-metallic fenestrated region. Sample 6 is a storage box 10 made of all plastic material, and two wireless audio devices 20 are accommodated in the storage box 10 . Sample 6 is a storage box 10 in which both the cover 5 and the body 6 have a metal appearance surface, and two wireless audio devices 20 are accommodated in the storage box 10, but the first end surface 1 of the storage box 10 has a non-metal surface with a window area. Sample 7 is a storage box 10 in which both the cover 5 and the body 6 have metal appearance surfaces, and two wireless audio devices 20 are accommodated in the storage box 10, but the first end surface 1 and the second end surface 2 of the storage box 10 both have A windowed area on a non-metallic surface.

It is worth mentioning that the data in Table 1 are obtained from testing the wireless audio device 20 on the same side (for example, the left side). Since the left wireless audio device and the right wireless audio device are usually arranged symmetrically, therefore , to test the wireless audio device on the right side, a result similar to that of the audio device on the left side can be obtained, and details will not be described here. In addition, in each sample having the storage box 10, the shape and size of the storage box 10 were the same. In addition, during the test, each storage box 10 is in a closed state.

Table 1

By comparing the TRP and TIS of the eight samples in Table 1, it can be seen that: the average value (-90.1dB) of the TIS of the sample two of the storage box 10 provided by the application and the TIS of the wireless audio device 20 of the sample three The average value (-89.4dB) of is less than the average value (-86.7dB) of the TIS of the wireless audio device 20 of sample six using the all-plastic storage box 10. Therefore, adopting the storage box 10 provided by the present application can maximize the proportion of the metal surface of the appearance surface of the storage box 10 on the basis of ensuring the OTA performance of the wireless audio device 20 accommodated in the storage box 10, Thereby improving its aesthetic appearance.

It can be understood that the design scheme of the storage box 10 for accommodating the wireless audio device 20 provided in the present application can also be used in other scenarios, for example, the design of the storage box 10 that can be used for wearable devices such as smart glasses, which For a specific setting manner, reference may be made to the foregoing embodiments of the present application, and details are not described here.

The above is only the specific implementation of the application, but the scope of protection of the application is not limited thereto. Anyone familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the application, and should cover Within the protection scope of this application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

A storage box, characterized in that it includes a first end surface, a second end surface and a peripheral side surface, wherein:

The first end surface is arranged opposite to the second end surface, the first end surface is a metal surface, and the second end surface is a metal surface;

The peripheral side includes a first sub-peripheral side and a second sub-peripheral side, the first sub-peripheral side is a metal surface, and the first sub-peripheral side faces the edge of the first end face and the first end face The edge connection of the first end surface and the first sub-peripheral side form a first metal cover with an opening facing the second end surface;

The second sub-circumferential side is a metal surface, and the edge of the second sub-peripheral side facing the second end face is connected to the edge of the second end face, and the second end face and the second sub-peripheral side forming a second metal cover opening towards the first end surface;

There is a gap between the first metal cover and the second metal cover, and the gap is arranged around the circumference of the storage box.
The storage box according to claim 1, characterized in that, in the direction along the first end surface to the second end surface, the minimum size of the gap is greater than or equal to 0.01mm.
The storage box according to claim 1 or 2, characterized in that, in the direction from the first end surface to the second end surface, the gap is arranged at a middle position of the storage box.
The storage box according to any one of claims 1 to 3, wherein the storage box includes a cover and a body, the cover and the body are closed to form a closed space, and the closed space is provided with holding tank;

The first metal cover is formed on the box cover, the second metal cover is formed on the body; the gap is formed on the box cover and/or the body.
The storage box according to claim 4, wherein a part of the first metal cover is formed on the cover, and another part is formed on the body; a part of the second metal cover is formed on the box The other part of the cover is formed on the body; the part of the gap is formed on the box cover, and the other part is formed on the body.
The storage box according to any one of claims 1 to 5, wherein a first inductor is provided between the first metal cover and the grounding point, and the first metal cover is connected in series with the first inductor, And the first metal cover is electrically connected to the ground point through the first inductor; a second inductor is arranged between the second metal cover and the ground point, and the second metal cover and the second inductor connected in series, and the second metal cover is electrically connected to the ground point through the second inductor.
The storage box according to claim 6, wherein the inductance value of the first inductor is greater than or equal to 10nH; and/or, the inductance value of the second inductor is greater than or equal to 10nH.
A wireless audio device assembly, characterized by comprising a wireless audio device, and a storage box according to any one of claims 1 to 7, wherein the wireless audio device is stored in the storage box.
The wireless audio equipment assembly according to claim 8, wherein the storage box includes a cover and a body, the cover and the body are closed to form a closed space, and an accommodating groove is arranged in the closed space ; The wireless audio equipment is accommodated in the accommodating slot.