Test device

Abstract

The application provides a test device for solving the problem that the wireless communication performance of an electronic device is not intuitive enough when displayed in a promotion process, resulting in low participation and credibility of consumers. The test device comprises a shielding shell assembly, and a first accommodating space for accommodating the electronic device is arranged in the shielding shell assembly. At least part of the shielding shell assembly is a transparent area, the transparent area of the shielding shell assembly is used for observing the display screen of the electronic device from the outside of the shielding shell assembly, and a sandwich space is arranged in the transparent area of the shielding shell assembly and used for injecting a transparent liquid. The shielding shell assembly and the liquid layer in the sandwich space form a closed shielding body by using the shielding effect of the transparent liquid in the sandwich space on electromagnetic waves, so that the electronic device is in a weak field environment, consumers can observe the running state of the electronic device in the first accommodating space in real time through the transparent area on the shielding shell assembly, the whole test process is visible, and the participation and credibility of consumers are higher.

Description

[0001] This application claims priority to Chinese Patent Application No. 202411944352.2, filed on December 24, 2024, entitled "A Device and Method for Displaying the Communication Performance of a Visual and Interactive Display Terminal", the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of electronic device testing technology, and in particular to a testing device. Background Technology

[0003] As people's demand for electronic devices (such as mobile phones, tablets, and smartwatches) increases year by year, these devices have acquired more functions. For example, electronic devices generally have wireless communication capabilities, which are achieved by antennas receiving or transmitting electromagnetic waves.

[0004] When commercially promoting the aforementioned electronic devices with wireless communication capabilities, the companies typically list numerous technical parameters to illustrate their wireless communication performance, rather than providing a more intuitive demonstration to consumers, resulting in low credibility. Summary of the Invention

[0005] This application provides a testing device to address the problem that the demonstration of wireless communication performance of electronic devices during commercial promotion is not intuitive enough, resulting in low consumer participation and confidence.

[0006] To achieve the above objectives, the embodiments of this application adopt the following technical solutions:

[0007] This application provides a testing apparatus for testing and demonstrating the wireless communication performance of electronic devices. The testing apparatus includes a shielding shell assembly with a first accommodating space for accommodating the electronic device. At least a portion of the shielding shell assembly is transparent, allowing observation of the electronic device's display screen from the outside of the shielding shell assembly. Furthermore, a space within the transparent area of ​​the shielding shell assembly is provided for injecting a transparent liquid.

[0008] The aforementioned testing apparatus makes at least a portion of the shielding shell assembly transparent, allowing consumers to easily observe the display screen of the electronic device inside the shielding shell assembly from the outside. Since transparent materials generally have weak or no electromagnetic shielding capabilities, a space for injecting a transparent liquid is also provided within the transparent area of ​​the shielding shell assembly. During testing, the electronic device is placed in the first accommodating space with its display screen facing the transparent area of ​​the shielding shell assembly. Then, a transparent liquid is injected into the space within the transparent area of ​​the shielding shell assembly, forming a liquid layer. Utilizing the shielding effect of the liquid on electromagnetic waves, the liquid layer acts as an electromagnetic wave shielding medium, creating a closed shield with the shielding shell assembly, ensuring the electronic device operates in a weak field environment.

[0009] In this scenario, electronic devices can demonstrate their wireless communication performance to the outside world through the transparent area on the shielding shell component while watching live broadcasts, making voice or video calls, or running speed tests in professional testing software. The entire testing process is visible, increasing consumer participation and credibility.

[0010] In one possible implementation, the shielding shell assembly includes a first shell and a second shell. The first shell contains a first accommodating space. The second shell contains a closed second accommodating space, with the first shell disposed within the second accommodating space. The aforementioned interlayer space is formed between the outer wall of the first shell and the inner wall of the second shell. At least a portion of the sidewalls of the first shell and the second shell are transparent regions, and the transparent regions of the first shell and the second shell are positioned opposite each other.

[0011] In this way, a sandwich space is formed between the first and second housings, and the transparent areas of the first and second housings are positioned opposite each other to form the transparent areas of the shielding shell assembly. During testing, the electronic device is placed inside the first housing with its display screen facing the transparent area of ​​the first housing. Then, a transparent liquid is injected into the sandwich space (which is part of the second accommodating space), forming a liquid layer between the first and second housings (the liquid level must be higher than the electronic device). Utilizing the shielding effect of the liquid on electromagnetic waves, the liquid layer acts as an electromagnetic wave shielding medium. External electromagnetic wave signals are significantly attenuated after passing through the liquid layer and reaching the first accommodating space, creating a weak field (or weak electromagnetic field) environment inside the first housing, in which the electronic device is situated.

[0012] Furthermore, by using first shells of different sizes, the volume of the space between the first and second shells can be changed, the thickness of the liquid layer can be adjusted, and thus the intensity of the electromagnetic wave signal within the first shell can be controlled. For example, the thickness of the liquid layer can be gradually increased (i.e., the signal within the first shell can be gradually weakened) to demonstrate the process, making the test process and results more intuitive.

[0013] In another possible implementation, the second housing includes a top cover, a first base plate, and a first annular support portion. The first annular support portion has a first end and a second end distributed along its own axis. The first base plate is fixed to the first end of the first annular support portion, and the top cover is fastened to the second end of the first annular support portion. The top cover, the first annular support portion, and the first base plate form a second accommodating space. The transparent area of ​​the second housing is located on the first annular support portion. The first housing is connected to the top cover, and the first housing and the first annular support portion are spaced apart. The top cover is made of electromagnetic shielding material. In this way, the first base plate serves as the base of the second housing, supporting it on the platform. Opening the top cover allows for operations such as placing the first housing, placing electronic equipment, and injecting liquid into the interlayer space, making the operation demonstration of the entire testing process more convenient. Furthermore, because the first housing is connected to the top cover, when injecting transparent liquid into the interlayer space, a liquid layer that shields electromagnetic wave signals cannot be formed between the top of the first housing and the top cover. Based on this, by using an electromagnetic shielding material for the top cover, the top cover can reflect and / or absorb external electromagnetic wave signals, thereby preventing external electromagnetic wave signals from passing through the top cover and entering the first housing. For example, the electromagnetic shielding material can be a metal (aluminum, copper, iron, etc.), a polymer composite conductive material, etc. The transparent area of ​​the second housing is located on the first annular support portion, making it easier for consumers to observe the electronic device.

[0014] In another possible implementation, the first annular support has an observation window that extends through the sidewall of the first annular support. The second housing also includes a transparent panel fixed to the first annular support and covering the observation window; the portion of the transparent panel opposite the observation window constitutes the transparent area of ​​the second housing. In some cases, to reduce costs, the first annular support is made of a non-transparent material (e.g., metal, non-transparent plastic), therefore, an observation window needs to be created on the sidewall of the first annular support and closed with a transparent panel.

[0015] In another possible implementation, the first annular support is made of electromagnetic shielding material. This allows the first annular support to reflect and / or absorb external electromagnetic signals, improving the suppression of electromagnetic signals. Thus, even when the liquid level in the interlayer space is lower than the second end of the first annular support (i.e., there is a gap between the liquid level in the interlayer space and the top cover), external electromagnetic signals can be prevented from passing through the first annular support and then entering the first housing through the gap between the liquid level and the top cover. This ensures a controllable weak-field environment within the first housing, making the testing process more rigorous and the test results more realistic and objective.

[0016] In another possible implementation, the first annular support portion is integrally formed with the first base plate. In this way, the first annular support portion and the first base plate form a single barrel-shaped structural component with an open top. There is no dividing layer between the first annular support portion and the first base plate. Compared with a split structure, the integrally formed structure is more robust and convenient for assembly.

[0017] In another possible implementation, the first housing includes a second base plate and a second annular support portion. The second annular support portion has a first end and a second end distributed along its own axis. The second base plate is fixed to the first end of the second annular support portion, and the second base plate and the second annular support portion enclose a first accommodating space. The second end of the second annular support portion is connected to a top cover to enclose the first accommodating space. The second annular support portion and the first annular support portion are spaced apart, and the second base plate and the first base plate are spaced apart. The transparent area of ​​the first housing is located on the second annular support portion.

[0018] In other words, the first housing has a barrel-shaped structure with an open top, and the top cover seals the top opening of the first housing. The interlayer space consists of the space between the first and second annular support parts, and the space between the first and second base plates. At this time, the interlayer space can be filled with liquid, meaning the liquid level in the interlayer space can be flush with the top cover. This prevents external electromagnetic wave signals from passing through the first annular support parts and then entering the first housing through the gap between the liquid level and the top cover. This design not only ensures a controllable weak-field environment inside the first housing, making the testing process more rigorous and the test results more realistic and objective, but also prevents liquid overflow from the interlayer space into the first housing, thus preventing damage to the electronic equipment.

[0019] In another possible implementation, the first housing has a ring-shaped structure, with the first housing and the first ring-shaped support spaced apart. One end of the first housing is fixedly connected to the first base plate, and the other end is connected to the top cover. The top cover, the first housing, and the first base plate form a closed first accommodating space. The first base plate is made of electromagnetic shielding material. This creates a ring-shaped interlayer space between the first housing and the first ring-shaped support, and the top cover and the first base plate seal both ends of the first housing, allowing the interlayer space to be filled with liquid. The resulting liquid layer can shield electromagnetic wave signals radially from the first housing, and the top cover and the first base plate can shield electromagnetic wave signals axially from the first housing, ensuring a controllable weak-field environment within the first housing. This makes the testing process more rigorous and the test results more realistic and objective.

[0020] In another possible implementation, the axis of the first housing coincides with the axis of the first annular support. This ensures that after injecting the transparent liquid into the interlayer, the thickness of the liquid layer between the first housing and the first annular support is uniform, thus maintaining a consistent attenuation of the electromagnetic wave signal in any radial direction of the first housing after passing through the liquid layer, resulting in more objective and rigorous test results.

[0021] In another possible implementation, the surface of the top cover facing the first base plate has an annular flange, and the end of the first housing near the top cover is inserted into the inside of the annular flange. In actual operation, the top cover is opened first, then a transparent liquid is injected into the interlayer space, and then the top cover is closed. This makes it impossible to guarantee that the liquid level in the interlayer space is completely flush with the top cover; that is, there may still be some tiny gaps between the top cover and the liquid surface, allowing external electromagnetic wave signals to enter the first housing through these gaps. For this reason, by providing an annular flange on the side of the top cover facing the first base plate, ensuring that the lower end of the annular flange can be inserted below the liquid surface after the top cover is closed, the first base plate, the liquid layer, the top cover, and the annular flange on the top cover can form a complete shielding layer that encloses the first housing, thereby shielding electromagnetic wave signals from all directions and ensuring signal isolation within the first housing.

[0022] In another possible implementation, the shielding shell assembly further includes a support member that rests between the first shell and the second shell. The support member facilitates the securing of the first shell within the second shell and ensures the consistency of the shape and volume of the space between the first and second shells.

[0023] In another possible implementation, the support is made of electromagnetic shielding material. This prevents external electromagnetic signals from passing through the second housing and then through the support into the first housing, making the testing process more rigorous and the test results more realistic and objective.

[0024] In another possible implementation, the shielding shell assembly includes a first shell and a second shell. The first shell contains a first accommodating space. The first shell has a display window extending through a sidewall, and is made of electromagnetic shielding material. The second shell is fixed to the display window on the first shell and encloses the first accommodating space. The second shell has first and second sidewalls spaced axially along the display window, with the aforementioned interlayer space located between the first and second sidewalls. At least a portion of the first and second sidewalls are transparent, and both transparent portions of the first and second sidewalls are opposite to the display window.

[0025] In this way, a display window is set on a first shell made of electromagnetic shielding material, and a second shell with a sandwich space is used to cover the display window. The transparent areas of the first and second sidewalls of the second shell are arranged opposite each other to form the transparent areas of the shielding shell assembly. During testing, the electronic device is placed in the first accommodating space of the first shell with its display screen facing the display window. Then, a transparent liquid is injected into the second shell, forming a liquid layer in front of the display window of the first shell. This liquid layer acts as an electromagnetic wave shielding medium. External electromagnetic wave signals are significantly attenuated after passing through the liquid layer and reaching the first accommodating space, creating a weak field environment inside the first shell, in which the electronic device operates. In this situation, the electronic device can demonstrate its wireless communication performance to the outside world through the display window of the first shell and the transparent area of ​​the second shell while watching live broadcasts, making voice or video calls, or running speed tests in professional testing software. The entire testing process is visible, increasing consumer participation and credibility.

[0026] In another possible implementation, the second housing is fixed to the outer surface of the first housing. The second housing includes a mounting bracket, a first transparent cover, and a second transparent cover, which are respectively mounted on the mounting bracket. The mounting bracket extends circumferentially along the display window and is assembled and fixed to the first housing. The first transparent cover is fixed to the side of the mounting bracket closest to the first housing, and the second transparent cover is located on the side of the first transparent cover furthest from the first housing. The first transparent cover, the mounting bracket, and the second transparent cover form a sandwich space. In this way, during testing, the electronic device can be first placed into the first housing from the display window, and then the mounting bracket can be assembled and fixed to the first housing, so that the second housing covers and closes the display window. The mounting bracket, as the main structure of the second housing, is fixedly connected to the first housing, ensuring the stability of the connection between the first and second housings.

[0027] For example, the above-mentioned assembly and fixing can be a snap-fit ​​(for example, a protrusion is provided on the mounting bracket and a corresponding groove is provided on the first housing, and the protrusion and the groove adopt a transition fit or interference fit), a threaded connection (for example, mutual matching internal threads and external threads are provided on the mounting bracket and the first housing respectively), or other assembly methods that rely on the matching relationship between the structures of the two components to achieve the connection. Assembly and fixing can also be an assembly method that connects the two components together by additional connecting parts (such as bolts, screws, buckles, etc.).

[0028] In another possible implementation, the mounting bracket is equipped with an adjustment mechanism, and a second transparent cover is mounted on the adjustment mechanism. The adjustment mechanism is used to adjust the distance between the second transparent cover and the first transparent cover. In this way, the volume of the space between the first and second housings can be changed using the adjustment mechanism, i.e., the thickness of the liquid layer can be adjusted, thereby controlling the intensity of the electromagnetic wave signal within the first housing. For example, the thickness of the liquid layer can be gradually increased (i.e., the signal within the first housing decreases from strong to weak) to demonstrate the process, making the test process and results more intuitive.

[0029] In another possible implementation, the adjustment mechanism includes multiple limiting slots located on the side of the mounting bracket facing the interlayer space and arranged along the distribution direction of the first and second transparent covers. The second transparent cover can be inserted into different limiting slots. In this way, by inserting the second transparent cover into different limiting slots, the distance between the second and first transparent covers can be adjusted, thereby adjusting the thickness of the liquid layer in the interlayer space. This facilitates control over the attenuation of external electromagnetic wave signals after passing through the liquid layer and entering the first housing, i.e., controlling the signal strength within the first housing.

[0030] In another possible implementation, the adjustment mechanism includes at least one slide groove located on the side of the mounting bracket facing the interlayer space and extending along the distribution direction of the first and second transparent cover plates. The second transparent cover plate is partially located within the slide groove and can slide along it. In this way, by sliding the second transparent cover plate along the slide groove, the distance between the second and first transparent cover plates can be adjusted, thereby adjusting the thickness of the liquid layer in the interlayer space. This facilitates control over the attenuation of external electromagnetic wave signals after passing through the liquid layer and entering the first housing, i.e., controlling the signal strength within the first housing.

[0031] In another possible implementation, the mounting bracket abuts against the first housing, and the first transparent cover is inserted into the display window. In this way, when the mounting bracket is assembled onto the first housing, the first transparent cover, in conjunction with the display window of the first housing, can position the second housing, making assembly easier. The abutment between the mounting bracket and the first housing prevents external electromagnetic signals from passing through the gap between the mounting bracket and the first housing and then through the first transparent cover into the first housing.

[0032] In another possible implementation, the testing apparatus further includes an electromagnetic shielding element disposed on the shielding housing assembly. By including the electromagnetic shielding element, a controllable weak field environment can be further ensured within the first accommodating space. For example, the electromagnetic shielding element may be a shielded antenna, a filter, an attenuator, etc.

[0033] In another possible implementation, the testing apparatus further includes a display rack disposed within the first accommodating space, used to hold electronic equipment. This allows for better support and fixation of the electronic equipment, and also facilitates adjustment of the electronic equipment's position and orientation within the shielding housing assembly. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the overall structure of an electronic device provided in an embodiment of this application;

[0035] Figure 2 For the above Figure 1 Exploded view of the structure of electronic equipment in China;

[0036] Figure 3 A comparison diagram of the wave speeds of electromagnetic waves in air and seawater;

[0037] Figure 4 A comparison diagram of the wavelengths of electromagnetic waves in air and seawater;

[0038] Figure 5 An exploded view of the structure of a testing device provided in an embodiment of this application;

[0039] Figure 6 for Figure 5 A cross-sectional view of the internal structure of the testing device in the image;

[0040] Figure 7 This represents the attenuation of electromagnetic waves after passing through liquid layers of different thicknesses.

[0041] Figure 8 A cross-sectional view of the internal structure of a testing device provided in an embodiment of this application;

[0042] Figure 9 A cross-sectional view of the internal structure of another testing device provided in an embodiment of this application;

[0043] Figure 10 A cross-sectional schematic diagram of a testing device provided in an embodiment of this application;

[0044] Figure 11 A cross-sectional schematic diagram of another testing device provided in the embodiments of this application;

[0045] Figure 12 An exploded view of another testing device provided in an embodiment of this application;

[0046] Figure 13 for Figure 12 A cross-sectional view of the internal structure of the testing device in the image;

[0047] Figure 14 for Figure 13 Exploded view of the second shell structure;

[0048] Figure 15 for Figure 13 A magnified view of a section at point A in the middle;

[0049] Figure 16 A cross-sectional view of the internal structure of another testing device provided in an embodiment of this application;

[0050] Figure 17 A cross-sectional view of the internal structure of another testing device provided in this application embodiment;

[0051] Figure 18 for Figure 17 A magnified view of a section at point B in the middle.

[0052] Figure label:

[0053] 01. Testing equipment; 010. Shielding housing assembly;

[0054] 10. First housing; 10a. Display window; 11. Second annular support; 12. Second base plate;

[0055] 20. Second housing; 21. First annular support; 210. Observation window; 22. Top cover; 23. First base plate; 24. Transparent panel; 25. Annular flange; 26. Mounting bracket; 260a. Limiting groove; 260b. Slide groove; 27. First transparent cover plate; 28. Second transparent cover plate;

[0056] 30. Support components;

[0057] 100, First accommodating space; 200, Second accommodating space; 200a, Mezzanine space;

[0058] 02. Electronic equipment; 1A. Display screen; 1a. Light-transmitting cover; 1b. Display panel; 2A. Housing; 2a. Mid-frame; 2b. Back cover; 3A. Camera module; 4A. Motherboard; 5A. Antenna; 5a. RF transceiver circuit; 5b. Radiator. Detailed Implementation

[0059] To make the purpose, technical solution, and advantages of this application clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0060] In the description of this application, it should be clarified that the terms "vertical," "lateral," "longitudinal," "front," "rear," "left," "right," "up," "down," and "horizontal," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are merely for the convenience of describing this application, and do not mean that the device or element referred to must have a specific orientation or position, and therefore should not be construed as a limitation of this application. Similarly, the term "quantity" should not be construed as a limitation of this application.

[0061] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0062] As people's demand for electronic devices increases year by year, these devices have acquired more functions. For example, electronic devices generally have wireless communication capabilities, which are achieved by antennas receiving or transmitting electromagnetic waves. These electronic devices can be portable electronic devices or other types of electronic devices. For example, electronic devices can be mobile phones, tablet personal computers, smartwatches, etc. For ease of explanation, the following examples will use mobile phones as an example.

[0063] Please see Figure 1 and Figure 2 As shown, Figure 1 This is a schematic diagram of the overall structure of an electronic device 02 provided in an embodiment of this application. Figure 2 For the above Figure 1An exploded view of the structure of electronic device 02. As described above, in this embodiment, electronic device 02 is a mobile phone, and electronic device 02 can have an approximately rectangular plate-like structure. Electronic device 02 may include a display screen 1A, a housing 2A, a camera module 3A, a motherboard 4A, and an antenna 5A.

[0064] The aforementioned display screen 1A is used to display images, videos, etc. The display screen 1A may include a light-transmitting cover 1a and a display panel 1b (also called a display panel), with the light-transmitting cover 1a and the display panel 1b stacked together. The material of the light-transmitting cover 1a includes, but is not limited to, glass. For example, the light-transmitting cover 1a can be a common light-transmitting cover 1a, used to protect the display panel 1b from damage caused by external forces and to provide dust protection. Alternatively, the light-transmitting cover 1a can also be a touch-sensitive light-transmitting cover 1a, enabling the electronic device 02 to have touch functionality, thus making it more convenient for consumers to use. Therefore, this application does not specifically limit the material of the light-transmitting cover 1a.

[0065] The aforementioned housing 2A is used to protect the electronic components inside the electronic device 02. The housing 2A may include a middle frame 2a and a rear cover 2b. The rear cover 2b is located on the side of the display panel 1b away from the light-transmitting cover 1a and is stacked with the light-transmitting cover 1a and the display panel 1b. The middle frame 2a is located between the light-transmitting cover 1a and the rear cover 2b, and both the light-transmitting cover 1a and the rear cover 2b are fixed to the middle frame 2a. For example, the rear cover 2b can be fixed to the middle frame 2a by adhesive bonding, threaded connection, welding, snap-fitting, etc. The light-transmitting cover 1a can be glued to the middle frame 2a, so that the light-transmitting cover 1a, the rear cover 2b, and the middle frame 2a form an internal accommodating space for the electronic device 02. The aforementioned display panel 1b, motherboard 4A, camera module 3A, and antenna 5A are all disposed within this internal accommodating space.

[0066] The aforementioned camera module 3A is used to capture video or images and can achieve automatic focus (AutoFocus, or AF), thus making it suitable for various shooting scenarios.

[0067] The aforementioned motherboard 4A is used to set up the electronic components of electronic device 02 and to realize the electrical connections between the electronic components. For example, the electronic components can be control chips (such as system-on-chip, SOC), graphics processing units (GPUs), universal flash storage (UFS), earpieces, flash modules, resistors, capacitors, inductors, etc.

[0068] The antenna 5A described above is used to receive and transmit electromagnetic wave signals to realize the wireless communication function of electronic device 02. For example, antenna 5A can be a WIFI antenna 5A or a mobile communication antenna 5A.

[0069] Specifically, antenna 5A may include an RF transceiver circuit 5a and a radiator 5b. The RF transceiver circuit 5a is used to receive RF signals transmitted from the radiator 5b or to transmit RF signals to the radiator 5b. The RF transceiver circuit 5a can be integrated into an RF transceiver chip or the central processing unit of electronic device 02; alternatively, the RF transceiver circuit 5a can be separately mounted on the motherboard 4A. The radiator 5b can be as follows: Figure 2 The radiator 5b is disposed on the inner surface of the rear cover 2b, or it can be disposed on the middle frame 2a. The radiator 5b is used to receive radio frequency signals from the radio frequency transceiver circuit 5a and transmit electromagnetic wave signals to the outside of the electronic device 02. Alternatively, the radiator 5b can also be used to receive electromagnetic wave signals from outside the electronic device 02 and transmit them to the radio frequency transceiver circuit 5a.

[0070] As road environments become increasingly complex and building density rises, consumers are demanding higher levels of wireless communication performance from electronic devices. Therefore, the quality of wireless communication performance has become a major selling point for electronic devices.

[0071] When manufacturers promote their electronic devices (such as through press conferences, shopping mall displays, and various video advertisements), they typically list a large number of technical parameters to illustrate their wireless communication performance. However, these technical parameters are all professional terms in the field, and consumers generally do not understand their meaning or can verify them themselves. Consequently, they cannot intuitively perceive the communication performance of the electronic device, resulting in low confidence.

[0072] In addition, some manufacturers place the electronic device 02 in a sealed metal box, utilizing the shielding effect of metal on electromagnetic waves to test and demonstrate the wireless communication performance of the electronic device 02. However, because the metal box is opaque, consumers can only see the operating status of the electronic device 02 after the metal box is opened, but cannot see the actual operating status of the electronic device 02 when the metal box is closed. Therefore, the confidence level of this test is not high.

[0073] According to Fries's transport formula:

[0074] ;

[0075] In the formula, r is the distance between the two antennas, λ is the wavelength of the electromagnetic wave, and P t For the transmit antenna power, G t For the transmit antenna gain, G r For the receiving antenna gain, P r This refers to the receiving antenna power.

[0076] It is known that the transmission distance of electromagnetic waves in a medium is positively correlated with the wavelength. Since both the wave speed and wavelength of electromagnetic waves decrease to varying degrees in liquids, transparent liquids can be used as shielding media to place electronic devices in a weak-field environment constructed from transparent liquids, thereby testing and demonstrating their wireless communication performance.

[0077] Take the propagation of electromagnetic waves in air and seawater as an example.

[0078] Please see Figure 3 and Figure 4 As shown, Figure 3 This graph compares the wave speeds of electromagnetic waves in air and seawater. The horizontal axis represents the frequency of the electromagnetic waves in Hz; the vertical axis represents the wave speed in m / s. Dashed lines represent electromagnetic waves propagating in air, and solid lines represent those propagating in seawater.

[0079] from Figure 3 As can be seen, the propagation speed of electromagnetic waves in seawater gradually increases with increasing frequency. When the frequency of electromagnetic waves is greater than or equal to 3.0 × 10⁻⁶, the propagation speed of electromagnetic waves in seawater increases. 8 At Hz, the propagation speed of electromagnetic waves in seawater reaches its maximum, approximately 3.0 × 10⁻⁶ Hz. 7 m / s, much smaller than its propagation speed in air 3.0 × 10 m / s. 8 m / s.

[0080] Figure 4 This is a comparison graph of the wavelengths of electromagnetic waves in air and seawater. The horizontal axis represents the frequency of the electromagnetic wave in Hz; the vertical axis represents the wavelength in meters (m). Solid lines represent electromagnetic waves propagating in air, and dashed lines represent electromagnetic waves propagating in seawater.

[0081] from Figure 4 As can be seen, the wavelength of electromagnetic waves gradually decreases in both air and seawater as the frequency increases. However, at the same frequency, the wavelength of electromagnetic waves in air is much longer than that in seawater.

[0082] Based on the shielding effect of transparent liquids on electromagnetic waves, this application provides a testing device 01 for testing and demonstrating the wireless communication performance of electronic device 02. Please refer to [link to relevant documentation]. Figure 5 and Figure 6 As shown, Figure 5 This is an exploded view of the structure of a testing device 01 provided in an embodiment of this application. Figure 6 for Figure 5 A cross-sectional view of the internal structure of the test device 01.

[0083] The testing device 01 includes a shielding shell assembly 010, wherein the shielding shell assembly 010 has a first accommodating space 100 for accommodating an electronic device 02. Furthermore, to facilitate real-time observation of the electronic device 02 within the shielding shell assembly 010, a transparent area for observation is provided on the shielding shell assembly 010. It should be noted that the transparent area on the shielding shell assembly 010 refers to the area where the consumer's line of sight can directly see through the shielding shell assembly 010 to the electronic device 02 within the first accommodating space 100.

[0084] Since transparent materials generally have very weak or no electromagnetic shielding capabilities, the transparent area of ​​the shielding shell assembly 010 is also provided with an interlayer space 200a for injecting transparent liquid.

[0085] During the test, electronic device 02 ( Figure 5 and Figure 6 (Not shown) is placed within the first accommodating space 100, with the display screen 1A of the electronic device 02 facing the transparent area of ​​the shielding shell assembly 010. Then, a transparent liquid is injected into the interlayer space 200a within the transparent area of ​​the shielding shell assembly 010, forming a liquid layer within the interlayer space 200a. Utilizing the shielding effect of the liquid on electromagnetic waves, the liquid layer acts as an electromagnetic wave shielding medium, forming a closed shield with the shielding shell assembly 010, ensuring the electronic device 02 is in a weak field environment. At this time, the electronic device 02 can demonstrate its wireless communication performance to the outside world through the transparent area on the shielding shell assembly 010 while watching live broadcasts, making voice or video calls, or running speed tests in professional testing software. The entire testing process is visible, increasing consumer participation and credibility.

[0086] It is understandable that the transparent area on the shielding shell assembly 010 may only occupy a portion of the shielding shell assembly 010. In this case, it is equivalent to the transparent area of ​​the shielding shell assembly 010 having a double-layer structure, while the other non-transparent areas of the shielding shell assembly 010 may have a single-layer structure or a double-layer structure. When the non-transparent area of ​​the shielding shell assembly 010 has a single-layer structure, this non-transparent area needs to be made of electromagnetic shielding material (such as metals (aluminum, copper, iron, aluminum alloys, stainless steel, etc.), high-molecular conductive polymers, etc.). The shielding shell assembly 010 and the liquid layer in the interlayer space 200a form a closed shield that encloses the electronic device 02. When the non-transparent area of ​​the shielding shell assembly 010 also has a double-layer structure, the interlayer space 200a can extend into the non-transparent area, thereby allowing a liquid layer to also be formed in the non-transparent area.

[0087] Alternatively, the shielding shell assembly 010 can be entirely transparent. In this case, the shielding shell assembly 010 is equivalent to a double-layer structure, and the liquid layer in the interlayer space 200a can form a closed shield to enclose the electronic device 02.

[0088] In some embodiments, please continue to see Figure 5 and Figure 6 As shown, the shielding shell assembly 010 may include a first shell 10 and a second shell 20. The first shell 10 contains the aforementioned first accommodating space 100. The second shell 20 contains a closed second accommodating space 200. The first shell 10 is disposed within the second accommodating space 200 and spaced apart from the second shell 20, forming the aforementioned interlayer space 200a between the outer wall of the first shell 10 and the inner wall of the second shell 20 (i.e., the interlayer space 200a is a part of the second accommodating space 200).

[0089] Both the first housing 10 and the second housing 20 can be made entirely of transparent material (i.e., the shielding housing assembly 010 is entirely transparent). Alternatively, one of the first housing 10 and the second housing 20 can be made entirely of transparent material, while the other has a transparent area for observation. Alternatively, transparent areas for observation can be provided on both the first housing 10 and the second housing 20, with the transparent areas of the first housing 10 and the second housing 20 arranged opposite each other to form the transparent area of ​​the shielding housing assembly 010. In short, the goal is to ensure that the electronic device 02 within the shielding housing assembly 010 can be observed from the outside. The electronic device 02 can demonstrate its wireless communication performance to the outside world while watching live broadcasts, making voice or video calls, or running speed tests in professional testing software. The entire testing process is visible, increasing consumer participation and credibility.

[0090] It is understood that the first shell 10 and the second shell 20 can be regular or irregular shapes such as columnar, spherical, or conical. This application does not impose any special limitations on the specific structural composition of the first shell 10 and the second shell 20, as long as they can form the corresponding first accommodating space 100 and second accommodating space 200.

[0091] For ease of description below, an XYZ coordinate system is established, defining the length direction of the shielding shell assembly 010 as the X-axis, the width direction as the Y-axis, and the height direction as the Z-axis. It should be noted that the coordinate system of the shielding shell assembly 010 can be flexibly set according to actual needs. This application only provides an example and should not be considered a specific limitation imposed on this application.

[0092] For example, please continue to see Figure 5 and Figure 6As shown, the second housing 20 is a columnar structure with a rounded rectangular cross-section (parallel to the XY plane). The length direction of the second housing 20 is the length direction (X-axis direction) of the shielding shell assembly 010, the width direction of the second housing 20 is the width direction (Y-axis direction) of the shielding shell assembly 010, and the height direction of the second housing 20 is the height direction (Z-axis direction) of the shielding shell assembly 010.

[0093] The second housing 20 may include a top cover 22, a first bottom plate 23, and a first annular support portion 21. The first annular support portion 21 has a first end and a second end distributed along its own axial direction (parallel to the Z-axis). The first bottom plate 23 is fixed to the first end of the first annular support portion 21, and the top cover 22 is fastened to the second end of the first annular support portion 21. The top cover 22, the first annular support portion 21, and the first bottom plate 23 form a closed second accommodating space 200.

[0094] The first annular support 21 and the first base plate 23 can be fixed to each other by means of bonding, welding, threaded connection, etc. The first annular support 21 and the first base plate 23 can also be integrally formed, so that the first annular support 21 and the first base plate 23 form a whole barrel-shaped structural component with an open top. There is no dividing layer between the first annular support 21 and the first base plate 23. The integrally formed structure is more robust and sturdy than the split structure, and it is also easier to assemble.

[0095] Based on the structure of the second shell 20 described above, the first shell 10 can adopt various structural forms to ensure that the liquid layer formed in the interlayer space 200a completely encloses the first shell 10, or the liquid layer can be used in conjunction with the second shell 20 to form a closed shield that completely encloses the first shell 10.

[0096] For example, please continue to see Figure 5 and Figure 6 As shown, the first housing 10 can be a closed columnar structure (correspondingly, the first accommodating space 100 is a closed space), and its side wall is provided with an openable door. Figure 5 (Not shown in the image). The first housing 10 is supported on the first base plate 23 of the second housing 20 by a support member 30, and the first housing 10 and the second housing 20 are completely separated. In this case, after injecting a transparent liquid into the interlayer space 200a and submerging the first housing 10, the liquid layer will completely enclose the first housing 10, thereby shielding electromagnetic wave signals in all directions and ensuring that the interior of the first housing 10 is a controllable weak field. Furthermore, both the first housing 10 and the second housing 20 are made of transparent material, allowing consumers to observe the operating status of the electronic device 02 from multiple angles.

[0097] Furthermore, by using first housings 10 of different sizes, the volume of the interlayer space 200a between the first housing 10 and the second housing 20 can be changed, thereby adjusting the thickness of the liquid layer and controlling the intensity of the electromagnetic wave signal within the first housing 10. For example, the thickness of the liquid layer can be gradually increased (i.e., the signal within the first housing 10 can be gradually weakened) to demonstrate the process, making the test process and results more intuitive.

[0098] Alternatively, transparent liquids with different electrical conductivity (such as tap water or seawater) can be added to the interlayer space 200a. The higher the electrical conductivity of the liquid layer, the better the suppression effect on electromagnetic wave signals, thereby controlling the attenuation of electromagnetic wave signals and thus controlling the intensity of electromagnetic wave signals within the first housing 10.

[0099] Please see Figure 7 As shown, Figure 7 This represents the attenuation of electromagnetic waves after passing through liquid layers of different thicknesses. The horizontal axis represents the frequency of the electromagnetic wave signal in GHz; the vertical axis represents the attenuation of the electromagnetic wave signal in dB. Curve 1 represents the attenuation of the electromagnetic wave signal after passing through a 1cm thick layer of tap water. Curve 2 represents the attenuation of the electromagnetic wave signal after passing through a 2cm thick layer of tap water. Curve 3 represents the attenuation of the electromagnetic wave signal after passing through a 3cm thick layer of tap water. Curve 4 represents the attenuation of the electromagnetic wave signal after passing through a 4cm thick layer of tap water. Curve 5 represents the attenuation of the electromagnetic wave signal after passing through a 5cm thick layer of tap water. Curve 6 represents the attenuation of the electromagnetic wave signal after passing through a 5cm thick layer of seawater.

[0100] It is evident that the greater the thickness of the liquid layer, the greater the attenuation of electromagnetic waves after passing through it. With the same liquid layer thickness, seawater exhibits a far greater suppression effect on electromagnetic wave signals at various frequencies than tap water, resulting in attenuation of over 40 dB at multiple frequencies.

[0101] For example, please see Figure 8 As shown, Figure 8This is a cross-sectional view of the internal structure of a testing device 01 provided in an embodiment of this application. The first housing 10 is entirely made of transparent material and may include a second base plate 12 and a second annular support portion 11. The second annular support portion 11 has a first end and a second end distributed along its own axis (parallel to the Z-axis). The second base plate 12 is fixed to the first end of the second annular support portion 11, and the second base plate 12 and the second annular support portion 11 form a first accommodating space 100. The second base plate 12 and the second annular support portion 11 can be fixed to each other by means of bonding, welding, threaded connection, etc. Alternatively, the second base plate 12 and the second annular support portion 11 can be integrally formed, thus forming a single barrel-shaped structural component with an open top. There are no dividing layers between the second base plate 12 and the second annular support portion 11. Compared to a split structure, the integrally formed structure is more robust and easier to assemble.

[0102] The second end of the second annular support 11 is connected to the top cover 22, and the second annular support 11 and the first annular support 21 are spaced apart. The first annular support 21 is made of transparent material. The second annular support 11 and the first annular support 21 constitute the transparent area of ​​the shielding shell assembly 010, so that consumers can observe the operating status of the electronic device 02 through the first annular support 21 and the second annular support 11.

[0103] The first housing 10 is supported within the second housing 20 by a support member 30. Specifically, the second base plate 12 is connected to the first base plate 23 by the support member 30.

[0104] In other words, Figure 8 The first housing 10 has a barrel-shaped structure with an open top. The top cover 22 closes the top opening of the first housing 10 (that is, closes the first accommodating space 100). The interlayer space 200a is located not only between the first annular support 21 and the second annular support 11, but also extends between the first bottom plate 23 and the second bottom plate 12.

[0105] Through the above structural design, the top cover 22 can seal the first accommodating space 100. Therefore, the interlayer space 200a can be filled with liquid, meaning the liquid level in the interlayer space 200a can be flush with the top cover 22. This prevents external electromagnetic wave signals from passing through the first annular support 21 and then entering the first housing 10 through the gap between the liquid level and the top cover 22. This design not only ensures a controllable weak-field environment within the first housing 10, making the testing process more rigorous and the test results more realistic and objective, but also prevents the liquid in the interlayer space 200a from overflowing into the first housing 10 and damaging the electronic device 02.

[0106] Furthermore, since the second end of the second annular support 11 is connected to the top cover 22, a liquid layer cannot be formed between the second end of the second annular support 11 and the top cover 22. External electromagnetic wave signals may pass through the top cover 22 and directly enter the first housing 10 from the second end of the second annular support 11. Therefore, the top cover 22 can be made of an electromagnetic shielding material, enabling it to reflect and / or absorb external electromagnetic wave signals, thereby preventing them from passing through the top cover 22 and entering the first housing 10. For example, the electromagnetic shielding material can be a metal (e.g., aluminum, copper, iron, aluminum alloy, stainless steel, etc.), a conductive polymer, etc.

[0107] In some cases, in order to improve the structural strength of the first housing 10 and enhance the electromagnetic shielding performance of the test device 01, the first annular support 21 and the first base plate 23 of the first housing 10 may be made of metal.

[0108] In addition, the first annular support 21 and the first base plate 23 are made of metal, which can reflect and / or absorb external electromagnetic wave signals, thereby improving the suppression of electromagnetic wave signals by the test device 01.

[0109] Accordingly, a transparent area needs to be provided on the first annular support 21 to avoid the first annular support 21 from obscuring the electronic device 02.

[0110] For details, please see Figure 9 As shown, Figure 9 This is a cross-sectional view of the internal structure of another testing device 01 provided in an embodiment of this application. The first annular support 21 has an observation window 210 that penetrates the sidewall of the first annular support 21. The second housing 20 also includes a transparent panel 24, which is fixed to the first annular support 21 and covers the observation window 210. In this way, the portions of the transparent panel 24 and the second annular support 11 opposite to the observation window 210 respectively constitute the transparent area of ​​the shielding housing assembly 010, allowing the consumer to observe the operating status of the electronic device 02 through the transparent panel 24, the observation window 210, and the first annular support 21.

[0111] It is understandable that the transparent panel 24 can be fixed to the first annular support 21 by means of adhesive, screw connection, bolt connection, riveting, etc.

[0112] Furthermore, electromagnetic shielding components can be provided on the top cover 22 to further ensure that the interior of the first housing 10 is a controllable weak field environment. For example, the electromagnetic shielding components can be shielded antennas, filters, attenuators, etc. The electromagnetic shielding components can be disposed on the inner surface of the top cover 22 or on the outer surface of the top cover 22; this application does not impose any special limitations on this.

[0113] In actual operation, the top cover 22 is opened first, then a transparent liquid is injected into the interlayer space 200a, and then the top cover 22 is closed. This makes it impossible to guarantee that the liquid level in the interlayer space 200a is completely flush with the top cover 22. In other words, there may still be some tiny gaps between the top cover 22 and the liquid level, allowing external electromagnetic signals to enter the first housing 10 through these gaps. Therefore, please refer to [link to relevant documentation]. Figure 10 As shown, Figure 10 This is a cross-sectional schematic diagram (parallel to the XZ plane) of a testing device 01 provided in an embodiment of this application. The surface of the top cover 22 facing the first base plate 23 may also be provided with an annular flange 25, which extends downward along the Z-axis direction. One end of the first housing 10 near the top cover 22 is inserted into the inner side of the annular flange 25.

[0114] In this way, after adding transparent liquid to the interlayer space 200a and fastening the top cover 22, the lower end of the annular flange 25 can be inserted below the liquid surface. Thus, when there is a gap between the liquid surface in the interlayer space 200a and the top cover 22, external electromagnetic wave signals can be prevented from passing through the first annular support 21 and then entering the first housing 10 through the gap between the liquid surface and the top cover 22.

[0115] At this time, the first base plate 23, the liquid layer, the top cover 22, and the annular flange 25 on the top cover 22 can form a closed shield to enclose the first housing 10, thereby shielding electromagnetic wave signals in all directions, thus ensuring that the inside of the first housing 10 is a controllable weak field environment, making the test process more rigorous and the test results more realistic and objective.

[0116] It is understood that the axial extension length of the annular flange 25 can be reasonably adjusted according to actual needs, and this application does not impose any special limitations on it.

[0117] Furthermore, the axis of the first housing 10 (i.e., the axis of the first annular support 21) can coincide with the axis of the second housing 20 (i.e., the axis of the second annular support 11). In this way, after injecting the transparent liquid into the interlayer space 200a, the thickness of the liquid layer between the first annular support 21 and the second annular support 11 is uniform, thus ensuring that the attenuation of the electromagnetic wave signal in any radial direction (parallel to the XY plane) of the first annular support 21 after passing through the liquid layer remains as consistent as possible, making the test results more objective and rigorous.

[0118] Based on the above, the structure of the test device 01 can be further simplified.

[0119] Please see Figure 11 As shown, Figure 11This is a cross-sectional schematic diagram (parallel to the XZ plane) of another testing device 01 provided in an embodiment of this application. The first housing 10 may also be annular in structure. The first housing 10 and the first annular support 21 are spaced apart. One end of the first housing 10 is fixedly connected to the first base plate 23, and the other end of the first housing 10 is connected to the top cover 22. The top cover 22, the first housing 10 and the first base plate 23 form a closed first accommodating space 100.

[0120] The first housing 10 and the first annular support 21 are both made of transparent material, forming a transparent area of ​​the shielding cover 010, allowing the consumer to observe the operating status of the electronic device 02 through the first annular support 21 and the first housing 10. The top cover 22 and the first bottom plate 23 are both made of electromagnetic shielding material (e.g., metal). The above structure forms an annular interlayer space 200a between the first housing 10 and the first annular support 21, and the top cover 22 and the first bottom plate 23 seal both ends of the first housing 10. When the interlayer space 200a is filled with liquid, the formed liquid layer can shield electromagnetic wave signals along the radial direction (parallel to the XY plane) of the first housing 10, and the top cover 22 and the first bottom plate 23 can shield electromagnetic wave signals along the axial direction (parallel to the Z axis) of the first housing 10.

[0121] In the examples above, the interlayer space 200a is actually formed between the first housing 10 and the second housing 20. In addition, this application embodiment also provides another testing device 01, which can directly place the interlayer space 200a inside the second housing 20, and the first housing 10 is only used to place the electronic device 02 and does not participate in the formation of the interlayer space 200a. Then, the second housing 20 is used to seal the first housing 10 to achieve all-round electromagnetic shielding for the electronic device 02.

[0122] Please see Figure 12 and Figure 13 As shown, Figure 12 An exploded view of the structure of another testing device 01 provided in the embodiments of this application. Figure 13 for Figure 12 The test device 01 is shown in the internal structural cross-sectional view. The shielding shell assembly 010 may include a first shell 10 and a second shell 20. The first shell 10 has a first accommodating space 100. The first shell 10 has a display window 10a that penetrates the side wall of the first shell 10, and the first shell 10 is made of electromagnetic shielding material.

[0123] The second housing 20 is fixed to the display window 10a on the first housing 10 and closes the first accommodating space 100. In order to facilitate consumers to observe the status of the electronic device 02 in the first housing 10 in real time, the transparent area for observation on the shielding shell assembly 010 is located on the second housing 20, and the interlayer space 200a is located inside the second housing 20.

[0124] Specifically, the second housing 20 has a first sidewall and a second sidewall spaced apart along the axial direction of the display window 10a. A sandwich space 200a is located between the first and second sidewalls. At least a portion of the first sidewall and at least a portion of the second sidewall are transparent areas, and both transparent areas of the first and second sidewalls are opposite to the display window 10a. The transparent areas of the first and second sidewalls, arranged opposite each other, constitute the transparent area of ​​the shielding shell assembly 010. Alternatively, the second housing 20 can be entirely made of a transparent material (e.g., glass, transparent plastic, etc.). In short, it is sufficient to ensure that the electronic device 02 inside the first housing 10 can be observed from the outside.

[0125] During testing, the electronic device 02 is placed within the first accommodating space 100 of the first housing 10, with its display screen 1A facing the display window 10a. A transparent liquid is then injected into the interlayer space 200a of the second housing 20, forming a liquid layer in front of the display window 10a of the first housing 10. This liquid layer acts as an electromagnetic wave shielding medium, causing external electromagnetic signals to significantly attenuate upon reaching the first accommodating space 100 after passing through the liquid layer. This creates a weak-field environment inside the first housing 10. Within this weak-field environment, the electronic device 02 can demonstrate its wireless communication performance by watching live streams, making voice or video calls, and running speed tests in professional testing software. The entire testing process is visible, increasing consumer participation and credibility.

[0126] This application does not impose any special restrictions on the specific structural composition of the first shell 10 and the second shell 20, as long as they can form the corresponding first accommodating space 100 and the second accommodating space 200.

[0127] For example, please continue to see Figure 13 and combined Figure 14 As shown, Figure 14 for Figure 13 An exploded view of the structure of the second housing 20. The second housing 20 is fixed to the outer surface of the first housing 10. The second housing 20 may include a mounting bracket 26, a first transparent cover plate 27, and a second transparent cover plate 28.

[0128] The first transparent cover plate 27 and the second transparent cover plate 28 are respectively disposed on the mounting bracket 26. The mounting bracket 26 extends circumferentially along the display window 10a and is assembled and fixed to the first housing 10. It should be noted that the assembly and fixing described here can be a snap-fit ​​(for example, a protrusion is provided on the mounting bracket 26 and a corresponding groove is provided on the first housing 10, and the protrusion and groove adopt a transition fit or interference fit), a threaded connection (for example, mutual mating internal threads and external threads are provided on the mounting bracket 26 and the first housing 10 respectively), or other assembly methods that rely on the fit relationship between the structures of the two components to achieve the connection. The assembly and fixing can also be an assembly method that connects the two components together by additional connecting parts (such as bolts, screws, quick-release snap-fit ​​parts, etc.), and this application does not make any special limitations on this.

[0129] The first transparent cover plate 27 is fixed to the side of the mounting bracket 26 closest to the first housing 10, and the second transparent cover plate 28 is located on the side of the first transparent cover plate 27 furthest from the first housing 10. The first transparent cover plate 27, the mounting bracket 26, and the second transparent cover plate 28 form a sandwich space 200a. It is understood that the first transparent cover plate 27 and / or the second transparent cover plate 28 can be fixed to the mounting bracket 26 by means of adhesive, screw connection, bolt connection, riveting, etc.

[0130] The mounting bracket 26 extends circumferentially along the display window 10a, thus preventing the mounting bracket 26 from obstructing the electronic device 02.

[0131] During testing, the electronic device 02 can be placed into the first housing 10 from the display window 10a, and then the mounting bracket 26 can be assembled and fixed onto the first housing 10, so that the second housing 20 covers and closes the display window 10a.

[0132] Further, please see Figure 15 As shown, Figure 15 for Figure 13 A magnified view of section A. The mounting bracket 26 abuts against the first housing 10, and the first transparent cover 27 is inserted into the display window 10a. In this way, when the mounting bracket 26 is assembled onto the first housing 10, the first transparent cover 27, in conjunction with the display window 10a of the first housing 10, can effectively position the second housing 20, making assembly easier. The abutment between the mounting bracket 26 and the first housing 10 prevents external electromagnetic signals from passing through the gap between the mounting bracket 26 and the first housing 10 and then through the first transparent cover 27 into the first housing 10.

[0133] The mounting bracket 26 can also be made of electromagnetic wave shielding material to further improve the signal isolation within the first housing 10.

[0134] Based on the above, in order to adjust the thickness of the liquid layer in the interlayer space 200a and thereby control the electromagnetic wave signal intensity in the first housing 10, an adjustment mechanism can be provided on the mounting bracket 26, and the second transparent cover plate 28 is provided on the adjustment mechanism. The adjustment mechanism is used to adjust the distance between the second transparent cover plate 28 and the first transparent cover plate 27.

[0135] For example, please see Figure 16 As shown, Figure 16 This is a cross-sectional view of the internal structure of another testing device 01 provided in an embodiment of this application. The adjustment mechanism includes multiple limiting slots 260a, which are located inside the mounting bracket 26 (i.e., the side of the mounting bracket 26 facing the interlayer space 200a) and arranged along the distribution direction of the first transparent cover plate 27 and the second transparent cover plate 28.

[0136] By inserting the second transparent cover plate 28 into different limiting slots 260a, the distance between the second transparent cover plate 28 and the first transparent cover plate 27 can be adjusted, thereby changing the volume of the interlayer space 200a between the first housing 10 and the second housing 20. This allows for adjustment of the thickness of the liquid layer in the interlayer space 200a, which in turn facilitates control over the attenuation of external electromagnetic wave signals after passing through the liquid layer into the first housing 10, i.e., controlling the signal strength within the first housing 10. For example, the thickness of the liquid layer can be gradually increased (i.e., the signal strength within the first housing 10 decreases from strong to weak) to demonstrate the process, making the test process and results more intuitive.

[0137] like Figure 16 In the orientation shown, the mounting bracket 26 has five limiting slots 260a arranged sequentially from left to right. When the second transparent cover 28 is inserted into the rightmost limiting slot 260a, the thickness of the liquid layer formed after injecting transparent liquid into the interlayer space 200a is the smallest, and the attenuation of electromagnetic wave signals passing through the liquid layer is small. When the second transparent cover 28 is inserted into the leftmost limiting slot 260a, the thickness of the liquid layer formed after injecting transparent liquid into the interlayer space 200a is the largest, and the attenuation of electromagnetic wave signals passing through the liquid layer is large. If the electronic device 02 can still operate smoothly at this time, it indicates that the electronic device 02 has strong wireless communication performance.

[0138] For example, please see Figure 17 and Figure 18 As shown, Figure 17 This is a cross-sectional view of the internal structure of another testing device 01 provided in an embodiment of this application. Figure 18 for Figure 17A partial enlarged view at point B. The adjustment mechanism can be a groove 260b formed inside the mounting bracket 26 (i.e., the side of the mounting bracket 26 facing the interlayer space 200a). The groove 260b extends along the distribution direction of the first transparent cover plate 27 and the second transparent cover plate 28. The second transparent cover plate 28 is partially located in the groove 260b and can slide along the groove 260b.

[0139] In this way, by sliding the second transparent cover plate 28 along the groove 260b, the distance between the second transparent cover plate 28 and the first transparent cover plate 27 can be adjusted, thereby realizing the adjustment of the thickness of the liquid layer in the interlayer space 200a, which in turn facilitates the control of the attenuation of external electromagnetic wave signals after passing through the liquid layer and entering the first housing 10, that is, controlling the signal strength in the first housing 10.

[0140] It is understood that the slide groove 260b can be provided as one or multiple slide grooves spaced apart, and this application does not make any special limitation on this. When multiple slide grooves 260b are provided at intervals, the second transparent cover plate 28 can slide more smoothly.

[0141] Furthermore, the testing device 01 may also include a display stand 40 ( Figure 17 (Not shown in the image) A display rack 40 is disposed inside the first housing 10 and is used to place the electronic device 02. In this way, the display rack 40 can better support and fix the electronic device 02, and also facilitates the adjustment of the position and orientation of the electronic device 02 in the first housing 10.

[0142] In the description of this specification, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0143] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A test apparatus for testing wireless communication performance of an electronic device, characterized by, The testing device includes a shielding shell assembly, and the shielding shell assembly has a first accommodating space for accommodating the electronic device. At least a portion of the shielding shell assembly is a transparent area, and the transparent area of ​​the shielding shell assembly is used to observe the display screen of the electronic device from the outside of the shielding shell assembly; Furthermore, the transparent area of ​​the shielding shell assembly is provided with an interlayer space, which is used to inject a transparent liquid; The shielding shell assembly includes: A first housing, wherein the first housing is provided with the first accommodating space; The second housing has a closed second accommodating space inside, and the first housing is disposed in the second accommodating space. The interlayer space is formed between the outer wall of the first housing and the inner wall of the second housing. At least a portion of the sidewalls of the first housing are transparent areas, at least a portion of the sidewalls of the second housing are transparent areas, and the transparent areas of the first housing and the transparent areas of the second housing are arranged opposite to each other, with the display screen of the electronic device facing the transparent area of ​​the first housing.

2. The testing apparatus according to claim 1, characterized in that, The second housing includes a top cover, a first bottom plate, and a first annular support portion. The first annular support portion has a first end and a second end distributed along its own axis. The first bottom plate is fixed to the first end of the first annular support portion, and the top cover is fastened to the second end of the first annular support portion. The top cover, the first annular support portion, and the first bottom plate form the second accommodating space. The transparent area of ​​the second housing is located on the first annular support portion. The first housing is connected to the top cover, and the first housing and the first annular support portion are spaced apart. The top cover is made of electromagnetic shielding material.

3. The testing apparatus according to claim 2, characterized in that, The first annular support is provided with an observation window, which penetrates the side wall of the first annular support. The second housing also includes a transparent panel, which is fixed to the first annular support and covers the observation window. The portion of the transparent panel opposite to the observation window is the transparent area of ​​the second housing.

4. The testing apparatus according to claim 2 or 3, characterized in that, The first annular support is made of electromagnetic shielding material.

5. The testing apparatus according to claim 2 or 3, characterized in that, The first annular support portion is integrally formed with the first base plate.

6. The testing apparatus according to claim 2, characterized in that, The first housing includes a second base plate and a second annular support portion. The second annular support portion has a first end and a second end distributed along its own axis. The second base plate is fixed to the first end of the second annular support portion. The second base plate and the second annular support portion form the first accommodating space. The second end of the second annular support is connected to the top cover to enclose the first accommodating space; The second annular support portion is spaced apart from the first annular support portion, and the second base plate is spaced apart from the first base plate; the transparent area of ​​the first housing is located on the second annular support portion.

7. The testing apparatus according to claim 2, characterized in that, The first housing has a ring structure, and the first housing and the first ring support are spaced apart. One end of the first housing is fixedly connected to the first bottom plate, and the other end of the first housing is connected to the top cover. The top cover, the first housing, and the first bottom plate form a closed first accommodating space. The first base plate is made of electromagnetic shielding material.

8. The testing apparatus according to claim 6 or 7, characterized in that, The axis of the first housing coincides with the axis of the first annular support.

9. The testing apparatus according to claim 2, characterized in that, The top cover has an annular flange on its surface facing the first base plate, and one end of the first housing near the top cover is inserted into the inside of the annular flange.

10. The testing apparatus according to any one of claims 1 to 3, characterized in that, The shielding shell assembly also includes a support member, which is supported between the first shell and the second shell.

11. The testing apparatus according to claim 10, characterized in that, The support is made of electromagnetic shielding material.

12. The testing apparatus according to any one of claims 1 to 3, characterized in that, The testing device also includes an electromagnetic shielding element, which is disposed on the shielding shell assembly.

13. The testing apparatus according to any one of claims 1 to 3, characterized in that, The testing device also includes a display rack located within the first accommodating space, which is used to place the electronic device.

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