CN115015586B

CN115015586B - Radio frequency test fixture device

Info

Publication number: CN115015586B
Application number: CN202111189218.2A
Authority: CN
Inventors: 莫阳和; 黄渊球
Original assignee: Beijing Honor Device Co Ltd
Current assignee: Beijing Honor Device Co Ltd
Priority date: 2021-10-12
Filing date: 2021-10-12
Publication date: 2023-04-07
Anticipated expiration: 2041-10-12
Also published as: CN115015586A

Abstract

The application provides a radio frequency test fixture device for solving the problem that a radio frequency line plug connected to a radio frequency card seat is easy to loosen and fall off to cause radio frequency test interruption in the radio frequency test process of mobile terminal equipment, so that the radio frequency test cost is reduced. The device includes a clamping assembly, at least four port clamp slots, and at least four adjustment assemblies. Wherein, the centre gripping subassembly is used for fixed mobile terminal equipment. And the at least four port clamping grooves are used for fixing the at least four radio frequency line plugs when the radio frequency line plugs are vertically inserted into the corresponding radio frequency card seats. And the at least four adjusting components are fixed on the clamping component. The at least four adjusting components are respectively connected with the at least four port clamping grooves and used for adjusting the relative positions of the port clamping grooves and the corresponding radio frequency card seats so that the radio frequency line plug is vertically inserted into the corresponding radio frequency card seats.

Description

Radio frequency test fixture device

Technical Field

The application relates to the field of mobile terminal equipment testing, in particular to a radio frequency test fixture device.

Background

Generally, in order to ensure the reliability and stability of the mobile terminal device, the radio frequency subsystem is tested (referred to as radio frequency test) in the production stage of the mobile terminal device.

In the process of radio frequency testing, the body of the mobile terminal device is often turned over to perform manual setting operation, so that the radio frequency testing is completed. In the process of turning over the mobile terminal equipment, radio frequency test interruption caused by loosening and falling of a radio frequency line plug connected to a radio frequency card seat is easy to occur, so that the test efficiency is reduced, and the test cost is increased.

Disclosure of Invention

The embodiment of the application provides a radio frequency test fixture device, which is used for solving the problem that radio frequency test interruption is caused by the fact that a radio frequency line plug connected to a radio frequency card seat is loosened and falls off easily in the radio frequency test process of mobile terminal equipment, so that the radio frequency test cost is reduced.

In order to achieve the above purpose, the embodiment of the present application adopts the following technical solutions:

the embodiment of the application provides a radio frequency test fixture device. The device is applied to the radio frequency test of the mobile terminal equipment. The mobile terminal equipment comprises a radio frequency card seat. When the radio frequency test is carried out on the mobile terminal equipment, the device can clamp the mobile terminal equipment, and a radio frequency line plug can be inserted into a radio frequency card seat of the mobile terminal equipment. The device includes a clamping assembly, at least four port clamp slots, and at least four adjustment assemblies. Wherein, the clamping component is used for fixing the mobile terminal equipment. And the at least four port clamping grooves are used for fixing the at least four radio frequency line plugs when the radio frequency line plugs are vertically inserted into the corresponding radio frequency card seats. And the at least four adjusting components are fixed on the clamping component. The at least four adjusting components are respectively connected with the at least four port clamping grooves and used for adjusting the relative positions of the port clamping grooves and the corresponding radio frequency card seats so that the radio frequency line plug is vertically inserted into the corresponding radio frequency card seats.

Based on the radio frequency test fixture device, in the process of carrying out radio frequency test on the mobile terminal equipment, the clamping assembly in the device can fix the mobile terminal equipment, the port clamping groove can fix the radio frequency line plug, and the position of the port clamping groove can be adjusted through the adjusting assembly, so that the port clamping groove is just positioned above the corresponding radio frequency card seat, and the radio frequency line plug can be vertically inserted into the corresponding radio frequency card seat. Therefore, in the radio frequency test process of the mobile terminal equipment, the radio frequency line plug can be fixed through the port clamping groove, so that the problem of the radio frequency test terminal caused by the falling of the radio frequency line plug is avoided, the radio frequency test efficiency is improved, and the test cost is reduced.

In one possible implementation, the port clip slot has a through hole for inserting a radio frequency line plug.

In one possible implementation, the clamping assembly includes: the clamping device comprises two first bases arranged in parallel, two second bases arranged in parallel and at least four clamping blocks. Wherein each first base comprises a first sliding chute. Each second base includes a second runner. Two ends of the second base are fixed in the first sliding grooves of the two first bases through the sliding rod respectively so as to adjust the spacing distance between the two second bases. And the at least four clamping blocks are respectively fixed in the second sliding grooves of the two second bases which are arranged in parallel through the limiting rods and slide along the second sliding grooves through the limiting rods so as to clamp the mobile terminal equipment. Therefore, the device clamps the mobile terminal device to be tested by adopting a four-corner clamping mode through the clamping component, so that not only can the mistaken touch of the clamping component on the display screen of the mobile terminal device to be tested be avoided, but also the clamping can be firmer, and the testing process is more stable.

In a possible implementation manner, a first tension spring is connected between the slide bars for fixing the two second bases in the same first sliding groove. So, can the interval distance between two second bases of quick adjustment through first extension spring to the size of adaptation mobile terminal equipment, thereby fixed mobile terminal equipment.

In a possible implementation mode, a second tension spring is connected between the limiting rods for fixing the two adjacent clamping blocks in the same second sliding groove. So, can the interval distance between two clamp splice by quick adjustment through first extension spring to the size of adaptation mobile terminal equipment, thereby fixed mobile terminal equipment.

In one possible implementation, the cross sections of the clamping blocks in the first direction and the second direction are both L-shaped; the first direction and the second direction are different. That is to say, each clamping block can be an L-shaped groove structure formed by digging out a small cuboid structure from a cuboid structure. Through this clamp splice, can fix four angles of mobile terminal equipment, not only can avoid the centre gripping subassembly to touch the mistake that the display screen of the mobile terminal equipment that awaits measuring caused, can also make the centre gripping more firm to make the testing process more stable.

In one possible implementation, the adjustment assembly is fixed to the second base.

In one possible implementation, the adjustment assembly is fixed to the first base.

In one possible implementation, the adjustment assembly includes a telescoping rod and a stop assembly. One end of the telescopic rod is connected with the port clamping groove, the other end of the telescopic rod is connected with the limiting component, and the telescopic rod is used for adjusting the relative position of the port clamping groove and the corresponding radio frequency clamping seat in the first direction. The limiting assembly is fixed on the clamping assembly and used for adjusting the relative position of the port clamping groove and the corresponding radio frequency clamping seat in the second direction. The first direction and the second direction are different. Therefore, through the matching of the telescopic rod and the limiting component, the port clamping groove connected with one end of the telescopic rod can be adjusted to any position of the mobile terminal device, so that the port clamping groove can meet the wiring requirement of any radio frequency test, the port clamping groove can be used for fixing the radio frequency line plug connected onto any radio frequency card seat, and the application range of the device is widened.

In one possible implementation manner, the limiting assembly comprises a limiting block, a pull rod and a third tension spring. Wherein, the limiting block is fixed on the clamping component. The pull rod is fixedly connected with the telescopic rod, and the rotary pull rod is used for adjusting the relative position of the port clamping groove and the corresponding radio frequency clamping seat in the second direction. The third tension spring is used for connecting the limiting block and the pull rod, so that when the relative position of the port clamping groove and the corresponding radio frequency clamping seat in the second direction is adjusted, the pull rod is pulled to rotate the pull rod, and after the adjustment is completed, the pull rod is loosened to fix the position of the pull rod. Therefore, in a normal state, the pull rod is always in a fixed state under the action of the tension of the third tension spring. When the pull rod is lifted from the clamping component, the pull rod can drive the telescopic rod and the port clamping groove to rotate, so that the port clamping groove rotates to a proper position, and the port clamping groove is located at the position of the radio frequency card seat. When the port clamping groove rotates to a proper position, the pull rod is put down, and under the action of the third tension spring, the pull rod is fixed, so that the position of the port clamping groove in the second direction is fixed.

In a possible implementation manner, a clamping groove is formed in the clamping component, and the clamping groove is matched with the pull rod. For example, the card slot may be disposed on the second surface of the second base. So, can carry on spacingly through the draw-in groove to the pull rod, avoid the position of pull rod to remove.

In one possible implementation, the apparatus further includes a support assembly. The supporting component is fixed below the clamping component and used for supporting the clamping component. The support assembly can provide support for the whole clamping assembly so as to facilitate radio frequency test wiring and radio frequency test.

In one possible implementation mode, the clamping assembly is hinged on the supporting assembly, and the clamping assembly can turn over along the hinged position of the clamping assembly and the supporting assembly. For example, the clamping assembly may be hinged to the support assembly by a hinge. Therefore, when wiring is needed, the clamping assembly can be turned over through the hinge, and the wiring of the radio frequency test is facilitated. After wiring is completed, the clamping assembly is turned over to the supporting assembly through the hinge, so that the display screen of the mobile terminal device can be conveniently operated to perform radio frequency testing on the mobile terminal device.

In one possible implementation, the support assembly includes: bottom plate and at least two support frames. Wherein, at least two support frames are fixed on the bottom plate and used for supporting the clamping assembly. Wherein, the bottom plate can provide the gravity support for whole radio frequency test fixture device, and when the centre gripping subassembly was along with the hinge upset, the bottom plate can the stable support centre gripping subassembly. In addition, the supporting frame can enable a cavity to be formed between the bottom plate and the clamping assembly, so that radio frequency test wiring is facilitated, and a line transmission space is provided for a radio frequency test line.

Drawings

Fig. 1 is a schematic structural diagram of a mobile terminal device;

fig. 2 is a schematic structural diagram of a radio frequency card socket in a mobile terminal device according to an embodiment of the present application;

fig. 3 is a schematic view of a radio frequency test scenario provided in an embodiment of the present application;

fig. 4 is a schematic diagram of another radio frequency test scenario provided in the embodiment of the present application;

fig. 5 is a first schematic structural diagram of an rf test fixture apparatus according to an embodiment of the present disclosure;

fig. 6 is a schematic structural diagram of a radio frequency test fixture device according to an embodiment of the present application;

FIG. 7 is a schematic cross-sectional view taken along the line A _ A in FIG. 6;

fig. 8 is a third schematic structural diagram of a radio frequency test fixture apparatus according to an embodiment of the present application;

fig. 9 is a fourth schematic structural diagram of a radio frequency test fixture device according to an embodiment of the present disclosure;

fig. 10 is a schematic structural diagram of a radio frequency test fixture device according to an embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments.

In the following, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or as implying any indication of the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless otherwise specified.

In the description of the present application, the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "vertical", "lateral", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and for simplicity in description, and do not indicate or imply that the referred device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present application.

In the present application, unless expressly stated or limited otherwise, the term "coupled" is to be construed broadly, e.g., "coupled" may be a fixed connection, a removable connection, or an integral part; may be directly connected or indirectly connected through an intermediate. Furthermore, the terms "coupled" or "coupling" may be a manner of making electrical connections that communicate signals. The specific meaning of the above terms in this application will be understood to be a specific case for those of ordinary skill in the art.

Fig. 1 is a schematic structural diagram of a mobile terminal device. As shown in fig. 1, the mobile terminal device may include an application subsystem, a memory (memory), a mass storage (mass storage), a baseband subsystem, a Radio Frequency Integrated Circuit (RFIC), a Radio Frequency Front End (RFFE) device, and an antenna (ANT ), which may be coupled via various interconnect buses or other electrical connections.

In fig. 1, ANT _1 denotes a first antenna, ANT _ N denotes an nth antenna, and N is a positive integer greater than 1. Tx denotes the transmit path, rx denotes the receive path, and different numbers denote different paths. FBRx denotes a feedback reception path, PRx denotes a main reception path, and DRx denotes a diversity reception path. HB denotes high frequency, LB denotes low frequency, and both mean relatively high and low frequencies. BB denotes a baseband. It should be understood that the labels and components in fig. 1 are for illustrative purposes only, and are provided as one possible implementation, and that embodiments of the present application include other implementations as well.

The application subsystem can be used as a main control system or a main computing system of the mobile terminal equipment, is used for running a main operating system and an application program, manages software and hardware resources of the whole mobile terminal equipment, and can provide a user operation interface for a user. The application subsystem may include one or more processing cores. In addition, driver software associated with other subsystems (e.g., baseband subsystem) may also be included in the application subsystem. The baseband subsystem may also include one or more processing cores, as well as Hardware Accelerators (HACs) and buffers, among others.

In fig. 1, the RFFE device, RFIC 1 (and optionally RFIC 2) may collectively comprise a radio frequency subsystem. The radio frequency subsystem may be further divided into a radio frequency receive path (RF receive path) and a radio frequency transmit path (RF transmit path). The rf receive channel may receive an rf signal via an antenna, process (e.g., amplify, filter, and downconvert) the rf signal to obtain a baseband signal, and pass the baseband signal to the baseband subsystem. The rf transmit channel may receive the baseband signals from the baseband subsystem, perform rf processing (e.g., up-conversion, amplification, and filtering) on the baseband signals to obtain rf signals, and finally radiate the rf signals into space through the antenna. In particular, the rf subsystem may include an antenna switch, an antenna tuner, a Low Noise Amplifier (LNA), a Power Amplifier (PA), a mixer (mixer), a Local Oscillator (LO), a filter (filter), and other electronic devices, which may be integrated into one or more chips as desired. Antennas may sometimes also be considered part of the rf subsystem.

The baseband subsystem may extract useful information or data bits from the baseband signal or convert the information or data bits to a baseband signal to be transmitted. These information or data bits may be data representing user data or control information such as voice, text, video, etc. For example, the baseband subsystem may perform signal processing operations such as modulation and demodulation, encoding and decoding. Different radio access technologies, such as 5G NR and 4G LTE, tend to have baseband signal processing operations that are not exactly the same. Therefore, to support the convergence of multiple mobile communication modes, the baseband subsystem may include multiple processing cores, or multiple HACs, simultaneously.

In addition, since the radio frequency signal is an analog signal, the signal processed by the baseband subsystem is mainly a digital signal, and an analog-to-digital conversion device is also required in the mobile terminal device. The analog-to-digital conversion device includes an analog-to-digital converter (ADC) that converts an analog signal into a digital signal, and a digital-to-analog converter (DAC) that converts a digital signal into an analog signal. In the embodiment of the present application, the analog-to-digital conversion device may be disposed in the baseband subsystem, and may also be disposed in the radio frequency subsystem.

It should be understood that, in the embodiments of the present application, the processing core may represent a processor, and the processor may be a general-purpose processor or a processor designed for a specific field. For example, the processor may be a Central Processing Unit (CPU) or a Digital Signal Processor (DSP). The processor may also be a Micro Control Unit (MCU), a Graphics Processing Unit (GPU), an image signal processing unit (ISP), an Audio Signal Processor (ASP), and a processor specifically designed for Artificial Intelligence (AI) applications. AI processors include, but are not limited to, neural Network Processing Units (NPUs), tensor Processing Units (TPUs), and processors known as AI engines.

The hardware accelerator can be used for realizing sub-functions with large processing overhead, such as assembly and analysis of data packets (data packets), encryption and decryption of the data packets, and the like. These sub-functions may also be implemented using general-purpose processors, but for performance or cost considerations, it may be more appropriate to use hardware accelerators. Thus, the type and number of hardware accelerators may be specifically selected based on requirements. In a specific implementation, the implementation may be implemented using one or a combination of a Field Programmable Gate Array (FPGA) and an Application Specific Integrated Circuit (ASIC). Of course, one or more processing cores may also be used in the hardware accelerator.

The memory may be divided into a volatile memory (NVM) and a non-volatile memory (NVM). Volatile memory refers to memory in which data stored therein is lost when power supply is interrupted. Currently, volatile memory is mainly Random Access Memory (RAM), including Static RAM (SRAM) and Dynamic RAM (DRAM). A nonvolatile memory is a memory in which data stored inside is not lost even if power supply is interrupted. Common non-volatile memories include Read Only Memories (ROMs), optical disks, magnetic disks, and various memories based on flash memory technology, etc. Generally, the memory may be volatile memory, and the mass storage may be non-volatile memory, such as a disk or flash memory.

In the embodiment of the application, the baseband subsystem and the radio frequency subsystem jointly form a communication subsystem, and provide a wireless communication function for the mobile terminal equipment. In general, the baseband subsystem is responsible for managing the software and hardware resources of the communication subsystem, and may configure the operating parameters of the radio frequency subsystem. One or more processing cores of the baseband subsystem may be integrated into one or more chips, which may be referred to as baseband processing chips or baseband chips. Similarly, the RFIC may be referred to as a radio frequency processing chip or radio frequency chip. In addition, as the technology evolves, the functional division of the rf subsystem and the bb subsystem in the communication subsystem may also be adjusted. For example, part of the functionality of the rf subsystem is integrated into the bb subsystem, or part of the functionality of the bb subsystem is integrated into the rf subsystem. In practical applications, the mobile terminal device may employ a combination of different numbers and different types of processing cores, depending on the needs of the application scenario.

In the embodiment of the present application, the RF subsystem may include a separate antenna, a separate RF front end (RFFE) device, and a separate RF chip. The radio frequency chip is sometimes also referred to as a receiver, transmitter, or transceiver. The antenna, the rf front-end device and the rf processing chip may all be manufactured and sold separately. Of course, the rf subsystem may also be implemented with different devices or integrated in different ways based on power consumption and performance requirements. For example, some devices belonging to the rf front end are integrated into a rf chip, and even an antenna and the rf front end device are integrated into a rf chip, which may also be referred to as a rf antenna module or an antenna module.

Generally, in order to ensure the reliability and stability of the mobile terminal device, the radio frequency subsystem is tested (referred to as radio frequency test) in the production stage of the mobile terminal device. Taking a Mobile terminal device using the fifth Generation Mobile Communication technology (5 th Generation Mobile Communication technology,5 g) as an example, as shown in fig. 2, the Mobile terminal device 100 includes a radio frequency chip on which the radio frequency subsystem of the Mobile terminal device in fig. 1 is integrated. The rf chip is further connected with a plurality of rf sockets 101 (4 rf sockets for two main set antennas and two rf sockets for two diversity antennas are shown in the figure), and each rf socket 101 is connected with an rf subsystem in the rf chip. When performing radio frequency test on the mobile terminal device, the radio frequency card socket 101 is used for connecting a radio frequency test line to perform radio frequency test on the mobile terminal device.

When a 5G New Radio (NR) Radio frequency test is performed, 2-4 Radio frequency test lines need to be connected simultaneously according to different test items. For example, as shown in fig. 3, when a Multiple-Input Multiple-Output (MIMO) test is performed, 1 rf test line 202 is usually connected to each of two rf card sockets 101 (i.e., an rf card socket with 1 main set antenna and an rf card socket with 1 diversity antenna) to perform a 5G NR MIMO test. For another example, as shown in fig. 4, when performing a receiver test, 1 rf test line 202 is connected to each of the four rf sockets shown in fig. 2, so as to perform the receiver test. It should be understood that the rf test line 202 may be connected to a corresponding rf socket via the rf line plug 201.

In the testing process shown in fig. 3 and 4, the body of the mobile terminal device is often turned over for manual setting operation to complete the rf testing. In the process of turning over the mobile terminal equipment, the problem of radio frequency test interruption caused by the fact that a radio frequency line plug connected to a radio frequency card seat is loosened and falls off is easy to occur, so that the test efficiency is reduced, and the test cost is increased.

To solve the above problem, as shown in fig. 5 to 10, an embodiment of the present application provides an rf test fixture apparatus 300, which is applied to an rf test of a mobile terminal device, such as the mobile terminal device 100 shown in fig. 2 (hereinafter, the embodiment is referred to as a mobile terminal device 100 to be tested). When performing the radio frequency test on the mobile terminal device 100 to be tested, the mobile terminal device 100 to be tested can be clamped by the radio frequency test fixture device, so that the radio frequency line plug 201 of the radio frequency test line 202 is inserted into the radio frequency card socket 101 described in fig. 2.

The radio frequency test fixture apparatus 300 includes a clamping assembly, at least four port clamp slots, and at least four adjustment assemblies. The clamping assembly is used for clamping the mobile terminal device 100 to be tested when the mobile terminal device 100 to be tested is subjected to radio frequency test. And the at least four port clamping grooves are used for fixing the at least four radio frequency line plugs when the radio frequency line plugs are vertically inserted into the corresponding radio frequency card seats. At least four adjusting components are connected with the clamping component and fixed on the clamping component. The at least four adjusting components are respectively connected with the at least four port clamping grooves. When the mobile terminal equipment is subjected to radio frequency test, the at least four adjusting components can be adjusted, so that the radio frequency line plug can be vertically inserted into the corresponding radio frequency card seat after being fixed by the corresponding port clamping groove.

It should be understood that, in order to enable the rf line plug to be vertically inserted into the corresponding rf card socket, the port clamping slot can fix the rf line plug, so that the port clamping slot has a through hole, and the rf line plug can pass through the through hole of the port clamping slot and be inserted into the corresponding rf card socket.

The above-mentioned radio frequency test fixture apparatus will be described in detail with reference to the accompanying drawings.

The clamping assembly comprises two first bases arranged in parallel, two second bases arranged in parallel and at least four clamping blocks. The two ends of the two second bases which are arranged in parallel are movably connected to the two first bases which are arranged in parallel respectively, so that the two first bases which are arranged in parallel and the two second bases which are arranged in parallel form a quadrilateral frame structure. Two second bases arranged in parallel can slide along the first base. The at least four clamping blocks are divided into two groups and are respectively movably connected to the two second bases arranged in parallel, and the at least four clamping blocks can slide along the second bases. Therefore, the relative distance between the at least four clamping blocks can be adjusted by moving the second base and the clamping blocks on the second base, so that the four clamping blocks just clamp four corners of the corresponding terminal equipment to be tested.

As shown in fig. 5 and 6, the two first bases arranged in parallel may be a base 301-1 and a base 301-2. The two second bases arranged in parallel may be base 301-3, base 301-4. The base 301-1, the base 301-2, the base 301-3 and the base 301-4 are provided with sliding grooves. For convenience of description, in the following embodiments, the slide grooves in the base 301-1 and the base 301-2 are referred to as a first slide groove 302, and the slide grooves in the base 301-3 and the base 301-4 are referred to as a second slide groove 303.

Illustratively, referring to FIGS. 5 and 6, the base 301-1, the base 301-2, the base 301-3, and the base 301-4 may each have a shape of a rectangular parallelepiped. The runners in base 301-1, base 301-2, base 301-3, and base 301-4 are located on the top surfaces of base 301-1, base 301-2, base 301-3, and base 301-4, respectively. The two ends of the base 301-3 can be respectively installed in the first sliding grooves 302 in the base 301-1 and the base 301-2 through the sliding rods 308, and the base 301-3 can slide along the first sliding grooves 203 in the base 301-1 and the base 301-2. The two ends of the base 301-4 can also be respectively installed in the first sliding chute 302 of the base 301-1 and the first sliding chute 302 of the base 301-2 through the sliding rod 308, and the base 301-4 can also slide along the first sliding chute 302 of the base 301-1 and the base 301-2. As such, the spacing distance between the base 301-3 and the base 301-4 can be adjusted by the above-described structure to adjust the relative distance between the clamping blocks on the base 301-3 and the base 301-4.

It should be noted that, in some embodiments, the sliding rod 308 may be a screw or screw-shaped structure. One end of the sliding rod 308 can be clamped into the first sliding groove 302, and the other end of the sliding rod 308 is provided with a thread which can be matched with a nut to lock the two ends of the base 301-3 to the base 301-1 and the base 301-2. For example, when it is necessary to fix the mobile terminal device 100 to be tested, the spacing distance between the base 301-3 and the base 301-4 needs to be adjusted according to the external dimension of the mobile terminal device 100 to be tested. At this point, the nut may be loosened to allow base 301-3 and base 301-4 to slide within first runner 302. After the base 301-3 and base 301-4 are moved into position, the nuts are tightened to fix the position of the base 301-3 and base 301-4.

Of course, in some embodiments, to facilitate ease of use and reduce handling, the sliding rod 308 may be configured to resemble a barbell, such that both ends of the base 301-3 or the base 301-4 are movably connected within the first sliding slots 302 of the bases 301-1 and 301-2, and the bases 301-3 and 301-4 may slide within the first sliding slots 302. In this case, in order to fix the mobile terminal device 100 to be tested, the spacing distance between the base 301-3 and the base 301-4 is adapted to the mobile terminal device 100 to be tested, and two adjacent sliding rods 308 in the same first sliding groove 302 (for example, in the first sliding groove 302 of the base 301-1) may be connected by a tension spring (i.e., a first tension spring). When the mobile terminal device 100 to be tested needs to be fixed, the base 301-3 and the base 301-4 are directly pulled away from each other. After the mobile terminal device 100 to be tested is placed, the base 301-3 and the base 301-4 are loosened, and the two sliding rods 308 gradually approach to each other under the action of the pulling force of the first tension spring, so that the base 301-3 and the base 301-4 are driven to gradually approach to each other until the mobile terminal device cannot move, and the mobile terminal device is fixed.

It should be understood that the implementation manner of the sliding rod 308 is only an example, and other manners may also be adopted in the practical application process, so that the embodiment of the present application does not specifically limit the specific structure of the sliding rod 308.

As shown in fig. 5, taking the example that the clamping assembly includes four clamping blocks, the at least four clamping blocks are respectively the clamping block 304-1, the clamping block 304-2, the clamping block 304-3 and the clamping block 304-4. The clamping block 304-1 and the clamping block 304-2 are both mounted in the second sliding groove 303 of the base 301-3 through a limiting rod 309, and the clamping block 304-1 and the clamping block 304-2 can slide along the second sliding groove 303 of the base 301-3. The clamp block 304-3 and the clamp block 304-4 are both mounted in the second slide slot 303 in the base 301-4 by a stop bar 309, and the clamp block 304-3 and the clamp block 304-4 can slide along the second slide slot 303 in the base 301-4.

The four clamping blocks 304-1, 304-2, 304-3 and 304-4 are all L-shaped. The four clamp blocks are all L-shaped, meaning that each clamp block is L-shaped in cross section in a first direction (e.g., a direction perpendicular to the direction of extension of the base 301-3), and each clamp block is also L-shaped in cross section in a second direction (e.g., a direction parallel to the direction of extension of the base 301-3). That is to say, each clamping block can be an L-shaped groove structure formed by digging out a small cuboid structure from a cuboid structure.

It can be understood that, in order to clamp the mobile terminal device to be tested to fix the mobile terminal device to be tested 100, the openings of the L-shaped slot structures of the clamping block 304-1 and the clamping block 304-2 mounted on the base 301-3 are opposite, and the openings of the L-shaped slot structures of the clamping block 304-3 and the clamping block 304-4 mounted on the base 301-4 are opposite, and the four corners of the mobile terminal device to be tested 100 can be clamped by the four clamping blocks.

When the mobile terminal device 100 to be tested needs to be subjected to radio frequency test, the base 301-3 and the base 301-4 may be moved along the first sliding groove 302 in the base 301-1 and the base 301-2, so that the spacing distance between the base 301-3 and the base 301-4 meets the external dimension of the mobile terminal device, for example, the spacing distance between the base 301-3 and the base 301-4 is adapted to the length of the mobile terminal device 100 to be tested. Then, the distance between the clamping blocks 304-1 and 304-2 and the distance between the clamping block 304-3 and 304-4 are adjusted to meet the external dimension of the mobile terminal device, such as the width of the mobile terminal device 100 to be tested, so that the four corners of the mobile terminal device can be clamped by the four clamping blocks 304-1, 304-2, 304-3 and 304-4 on the base 301-3 and the base 301-4.

In addition, in order to avoid abrasion to four corner regions of the mobile terminal device 100 to be tested when the clamping blocks 304-1, 304-2, 304-3 and 304-4 clamp the mobile terminal device 100 to be tested, cushion pads such as rubber pads and the like can be arranged in the L-shaped groove structures of the clamping blocks 304-1, 304-2, 304-3 and 304-4. Of course, the clamp blocks 304-1, 304-2, 304-3, and 304-4 may also be made of a material with low hardness, such as Polyvinyl chloride (PVC).

In order to fix the mobile terminal device 100 to be tested quickly, as shown in fig. 6, tension springs 310 (i.e., second tension springs) are connected between the mounting clamp block 304-1 and the limiting rod 309 of the clamp block 304-2, and between the mounting clamp block 304-3 and the limiting rod 309 of the clamp block 304-3. For example, when the mobile terminal device 100 to be tested needs to be subjected to radio frequency test and clamped with the mobile terminal device 100 to be tested, only the clamping block 304-1 and the clamping block 304-2, and the clamping block 304-2 and the clamping block 304-3 need to be moved, so that the distance between the clamping block 304-1 and the clamping block 304-2, and the distance between the clamping block 304-3 and the clamping block 304-4 are increased, and the mobile terminal device 100 to be tested is located between the clamping block 304-1, the clamping block 304-2, the clamping block 304-3 and the clamping block 304-4. After placing the mobile terminal device 100 to be tested between the clamping block 304-1, the clamping block 304-2, the clamping block 304-3 and the clamping block 304-4, the clamping block 304-1, the clamping block 304-2, the clamping block 304-3 and the clamping block 304-4 are released, the clamping block 304-1 and the clamping block 304-2 approach each other under the action of the pulling force of the tension spring 310, and the clamping block 304-3 and the clamping block 304-4 also approach each other under the action of the pulling force of the tension spring 310 until the mobile terminal device 100 to be tested is clamped.

Of course, in some embodiments, the clamp blocks 304-1, 304-2, 304-3, and 304-4 may be mounted in slide slots on the base 301-3 and the base 301-4 by means of screws and nuts, by which the distance between the clamp blocks 304-1 and 304-2, and the distance between the clamp blocks 304-3 and 304-4, may also be adjusted. It should be understood that the connection manners of the clamping block 304-1, the clamping block 304-2, the clamping block 304-3, and the clamping block 304-4 with the second sliding groove 303 are all illustrated, and the connection manners of the clamping block 304-1, the clamping block 304-2, the clamping block 304-3, and the clamping block 304-4 with the second sliding groove 303 are not particularly limited in the embodiment of the present application.

In summary, in some embodiments of the application, the clamping assembly clamps the mobile terminal device to be tested in a four-corner clamping manner, so that the clamping assembly can be prevented from mistakenly touching the display screen of the mobile terminal device to be tested, the clamping can be more firm, and the test process is more stable. The clamping assembly can be suitable for clamping and fixing all types of mobile terminal equipment such as a full-face screen and a curved-surface screen in the radio frequency test process.

As can be seen from the above description, when performing radio frequency test on the mobile terminal device, in some radio frequency test items, two radio frequency test lines are required to be connected to two corresponding radio frequency card sockets for performing radio frequency test, and in other radio frequency test items, four radio frequency test lines are required to be connected to four corresponding radio frequency card sockets for performing radio frequency test. In the process of testing different radio frequency test items, the positions of the radio frequency test lines connected with the radio frequency card seats may be different, and the setting positions of the radio frequency card seats may also be different for different models of mobile terminal devices. In this case, the relative positions of the at least four port clamping grooves 307 and the radio frequency card holder can be adjusted, so that the radio frequency line plug 201 can be vertically inserted into the corresponding radio frequency card holder when the radio frequency line plug 201 is fixed by the port clamping grooves 307.

In the embodiment of the present application, the adjusting component is used to adjust the relative position of the port clamp groove 307 and the rf clamp seat. Illustratively, as shown in FIG. 6, taking four adjustment assemblies as an example, two of the four adjustment assemblies are fixed to the base 301-3, and the other two adjustment assemblies are fixed to the base 301-4. Each adjustment assembly includes a telescoping rod 306 and a spacing assembly 305. The port clamp groove 307 is connected to the limiting component 305 through the telescopic rod 306, that is, one end of the telescopic rod 306 is connected to the port clamp groove 307, and the other end of the telescopic rod 306 is connected to the limiting component 305. The stop assembly 305 is secured to the clamp assembly, i.e., the stop assembly 305 may be secured to the base 301-3 or the base 301-4.

The port clamping groove 307 may be used to fix the rf cable plug 201 when the rf cable plug 201 is vertically inserted into the corresponding rf clamping seat. The telescopic rod 306 may be used to adjust the relative position of the port clamp groove 307 and the corresponding rf clamp in the first direction. Wherein the first direction is a direction perpendicular to the extending direction of the base 301-3, that is, a direction parallel to the extending direction of the base 301-1. The limiting component 305 can be used to adjust the relative position of the port clamp groove 307 and the corresponding rf clamp seat in the second direction. Wherein the second direction is a direction parallel to the extending direction of the base 301-3. Therefore, by matching the telescopic rod 306 and the limiting component 305, the port clamping groove 307 connected to one end of the telescopic rod 306 can be adjusted to any position of the mobile terminal device 100 to be tested, so that the port clamping groove 307 can meet any radio frequency test wiring requirement, the port clamping groove 307 can be ensured to fix a radio frequency line plug connected to any radio frequency card seat, and the application range of the device is improved. That is to say, when the mobile terminal device to be tested is subjected to the radio frequency test, the port clamping groove 307 can be adjusted to be located at the position opposite to the corresponding radio frequency card seat through the telescopic rod 306 and the limiting component 305, so that the radio frequency line plug 201 can be vertically inserted into the corresponding radio frequency card seat when the radio frequency line plug 201 is fixed by the port clamping groove 307.

It should be appreciated that adjusting the length of the telescoping rod 306 can adjust the relative position of the port clamp slot 307 and the corresponding rf clamp in the first direction. The telescopic rod 306 may be any type of existing telescopic rod 306 with adjustable length, for example, two mutually-nested cylindrical rods with different pipe diameters may be used, and the specific structure of the telescopic rod 306 is not particularly limited in this embodiment of the application.

Illustratively, for example, the limiting assembly 305 is fixed on the base 301-3 or the base 301-4, as shown in fig. 7, the limiting assembly 305 includes a limiting block 3051, a pull rod 3052 and a third tension spring 3053. The stopper 3051 may be fixed to a first surface of the base 301-3 or the base 301-4 by a screw, the pull lever 3052 is located at a second surface of the base 301-3 or the base 301-4, and the pull lever 3052 is coupled to the stopper 3051 by a third extension spring 3053. That is, the stopper 3051 is fixedly connected to the base 301-3 or 301-4 for fixing the whole adjusting assembly and limiting the moving range of the pull rod 3052. The tie rod 3052 is movable on the second surface of the base 301-3 or the base 301-4. For example, the second surface of the base 301-3 or the base 301-4 has a groove (i.e., a slot) that fits the tie-bar 3052, and the tie-bar 3052 can be inserted into the groove of the second surface of the base 301-3 or the base 301-4.

It can be understood that the pull rod 3052 is connected to the limit block 3051 through a third tension spring 3053. Under the normal state, under the action of the pulling force of the third tension spring 3053, the pull rod 3052 is always positioned in the groove on the second surface of the base 301-3 or 301-4, and the pull rod 3052 is in a fixed state. When the pull rod 3052 is lifted up from the recess of the second surface of the base 301-3 or 301-4, the pull rod 3052 can rotate the telescopic rod 306 and the port clamp groove 307, so that the port clamp groove 307 can rotate to a proper position, so that the port clamp groove 307 is located at the position of the rf card holder 101. After the port clamping groove 307 is rotated to a proper position, the pull rod 3052 is put into the groove on the second surface of the base 301-3 or the base 301-4, and the pull rod 2052 is fixed under the action of the third tension spring 3053, so that the position of the port clamping groove 307 in the second direction is fixed.

In addition, since the port clip groove 307 is used for fixing the radio frequency line plug 201, the radio frequency line plug 201 is inserted into the radio frequency card seat of the mobile terminal device 100 to be tested, and the port clip groove 307 is fixed by the adjusting component, the adjusting component can be disposed on a side of the base 301-3 or the base 301-4 far from the clip block 304-1 or the clip block 304-3. That is, the second surface of the base 301-3 or base 301-4 is the side away from the clamp block 304-1 or clamp block 304-3. Accordingly, the first surface of the base 301-3 or base 301-4 is the side on which the block 304-1 or clamp block 304-3 is mounted. In this case, when the mobile terminal device 100 to be tested is fixed, the display screen side of the mobile terminal device 100 to be tested needs to face the outer side of any clamping block (such as the clamping block 304-1) so as to prevent the display screen of the mobile terminal device 100 to be tested from being shielded, and the radio frequency line plug 201 used for testing can be fixed by the port clamping groove in the radio frequency testing process of the mobile terminal device 100 to be tested, so that the radio frequency line plug is prevented from falling off to cause the problem of the radio frequency testing terminal, the radio frequency testing efficiency is improved, and the testing cost is reduced.

Of course, in some embodiments, the above-mentioned limiting assembly 305 can also be realized by using a screw nut. For example, the end of the extension rod 306 connected to the position-limiting component 305 is a snap ring, and a screw can pass through the snap ring of the extension rod 306 to fix the extension rod 306. When the telescopic rod 306 needs to be rotated to adjust the relative position of the port clamping groove 307 and the corresponding radio frequency clamping seat in the second direction, the screw and the nut can be loosened, so that the telescopic rod 306 can freely rotate, and when the telescopic rod is rotated to a required position, the screw and the nut are tightened to fix the telescopic rod 306.

It should be understood that the above description of the position limiting assembly 305 is also only an example and is not intended to limit the embodiments of the present application.

It should be noted that, as shown in fig. 8, the adjusting assembly may be fixed to the base 301-1 and the base 301-2. For example, two of the four adjustment assemblies are secured to base 301-1 and two of the adjustment assemblies are secured to base 301-2. Therefore, the limiting component 305 can also be fixed on the base 301-1 or the base 301-2.

In some embodiments, the above-described radio frequency test fixture apparatus further comprises a support assembly. Wherein the supporting component is positioned below the clamping component and is used for supporting the clamping component. The clamping assembly is hinged to the supporting assembly, and the clamping assembly can turn over along the hinged position of the clamping assembly and the supporting assembly.

Illustratively, as shown in fig. 9, the support assembly may include a base plate 401 and a bracket fixed to the base plate 401. As shown in fig. 9 and 10, the rack may include at least four holders 402, and each two holders 402 are connected to each other by a holder fixing plate 403 to form a sub-rack (i.e., a supporting rack). That is, the stand may include two sub-stands, wherein one of the sub-stands is connected to the clamping assembly via a hinge 404 so that the clamping assembly can be turned over via the hinge 404.

For example, before testing the mobile terminal device 100 to be tested, the clamping assembly is turned to the state as shown in fig. 9, that is, the clamping assembly is entirely supported by the two sub-mounts. At this time, the mobile terminal device 100 to be tested can be fixed by the four clamping blocks 304-1, 304-2, 304-3 and 304-4. After the fixing of the mobile terminal device 100 to be tested is completed, the clamping assembly may be turned over to the state shown in fig. 10 through the hinge 404.

After the clamping assembly is flipped along with the hinge 404 to the state shown in fig. 10, a radio frequency test line may be connected to the mobile terminal device 100 to be tested. First, according to actual test requirements, each port clamping groove 307 is adjusted to the position of the corresponding radio frequency card seat in the mobile terminal device 100 to be tested through the adjusting component. Then, the rf line plug 201 is inserted from the port slot 307, so that the rf line plug 201 is vertically inserted into the corresponding rf card socket to complete the connection of the rf test line. Therefore, the position of the port clamping groove 307 can be fixed by the adjusting component, so that the port clamping groove 307 fixes the radio frequency line plug 201, and the radio frequency line plug 201 is prevented from falling off and interrupting the test in the test process, thereby improving the radio frequency test efficiency and reducing the test cost.

After the radio frequency test line is connected, the clamping assembly and the mobile terminal device 100 to be tested are turned over to the state shown in fig. 9, so as to control the display screen of the mobile terminal device to be tested to perform radio frequency test on the mobile terminal device 100 to be tested.

It will be appreciated that the base plate 401 of the support assembly described above may provide a gravitational support for the entire rf test fixture apparatus, and the base plate 401 of the support assembly may stabilize the holding assembly as it is flipped about the hinge 404. In addition, the support frame may have a cavity between the bottom plate 401 and the clamping assembly to facilitate rf testing wiring and provide a line transmission space for the rf testing lines.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A radio frequency test fixture device is characterized in that the radio frequency test fixture device is applied to radio frequency test of mobile terminal equipment, and the mobile terminal equipment comprises a radio frequency card seat; when the radio frequency of the mobile terminal equipment is tested, inserting a radio frequency line plug into the radio frequency card seat;

the device comprises:

the clamping assembly is used for fixing the mobile terminal equipment;

at least four port clamping grooves for fixing at least four radio frequency line plugs when the radio frequency line plugs are vertically inserted into the corresponding radio frequency card seats;

at least four adjusting components fixed on the clamping component; the at least four adjusting components are respectively connected with at least four port clamping grooves and used for adjusting the relative positions of the port clamping grooves and the corresponding radio frequency card seats so as to enable the radio frequency line plug to be vertically inserted into the corresponding radio frequency card seats; the adjustment assembly includes:

one end of the telescopic rod is connected with the port clamping groove, the other end of the telescopic rod is connected with a limiting assembly, and the telescopic rod is used for adjusting the relative position of the port clamping groove and the corresponding radio frequency clamping seat in the first direction;

the limiting assembly is fixed on the clamping assembly and is used for adjusting the relative position of the port clamping groove and the corresponding radio frequency card seat in the second direction;

the first direction and the second direction are different.

2. The apparatus of claim 1, wherein the port clip slot has a through hole for insertion of the radio frequency wire plug.

3. The apparatus of claim 1, wherein the clamping assembly comprises:

the device comprises two first bases arranged in parallel, wherein each first base comprises a first sliding chute;

the two second bases are arranged in parallel, each second base comprises a second sliding groove, and two ends of each second base are fixed in the first sliding grooves of the two first bases through sliding rods respectively so as to adjust the spacing distance between the two second bases;

and the at least four clamping blocks are respectively fixed in the second sliding grooves of the two second bases which are arranged in parallel through limiting rods, and slide along the second sliding grooves through the limiting rods so as to clamp the mobile terminal equipment.

4. The device according to claim 3, wherein a first tension spring is connected between the slide bars fixing the two second bases in the same first sliding groove.

5. The device of claim 3, wherein a second tension spring is connected between the limiting rods for fixing two adjacent clamping blocks in the same second sliding groove.

6. The apparatus of claim 3, wherein the clamp blocks are L-shaped in cross-section in both the first and second directions; the first direction and the second direction are different.

7. The apparatus of claim 3, wherein the adjustment assembly is secured to the second base.

8. The apparatus of claim 3, wherein the adjustment assembly is secured to the first base.

9. The device of any one of claims 1-8, wherein the stop assembly comprises:

the limiting block is fixed on the clamping component;

the pull rod is fixedly connected with the telescopic rod and is rotated to adjust the relative position of the port clamping groove and the corresponding radio frequency clamping seat in the second direction;

and the third tension spring is used for connecting the limiting block and the pull rod, so that when the relative position of the port clamping groove and the corresponding radio frequency clamping seat in the second direction is adjusted, the pull rod is pulled to rotate, and after the adjustment is completed, the pull rod is loosened to fix the position of the pull rod.

10. The device of claim 9, wherein the clamping assembly is provided with a slot, and the slot is matched with the pull rod.

11. The apparatus of any one of claims 1-8, 10, further comprising:

and the supporting component is fixed below the clamping component and used for supporting the clamping component.

12. The apparatus of claim 11, wherein the clamping assembly is hingedly connected to the support assembly, and wherein the clamping assembly is tiltable along the hinge of the clamping assembly and the support assembly.

13. The apparatus of claim 11, wherein the support assembly comprises:

a bottom plate, a plurality of first connecting plates,

and the at least two support frames are fixed on the bottom plate and used for supporting the clamping assembly.