WiFi module test fixture compatible with SDIO and USB interfaces

Abstract

The utility model discloses a WiFi module test fixture compatible with SDIO and USB interfaces, which comprises a test bottom plate, a module fixing block is arranged on the plate surface of the test bottom plate, the module fixing block is provided with a fixing groove matched with a WiFi module structure, the fixing groove is provided with a double-end probe, and the double-end probe is communicated with the WiFi module and the test bottom plate; the test board further comprises a DC seat and a USB connector, the DC seat and the USB connector are both installed on the test board and electrically connected with the test board, the USB connector is further provided with a USB interface and an SDIO golden finger interface, one end of the test board extends outwards to form the SDIO golden finger interface, the SDIO golden finger interface is electrically connected with the test board, and the SDIO golden finger interface is electrically connected with the test board. The beneficial effects of the WiFi module test fixture are that the same WiFi module test fixture can be used to test a WiFi module with a USB interface and a WiFi module with an SDIO interface.

Description

Technical Field

[0001] The utility model relates to the field of equipment testing, in particular to a WiFi module testing fixture compatible with SDIO and USB interfaces. Background Art

[0002] A WiFi module test fixture is a specialized device used to perform functional and performance testing on WiFi modules during the production process. This fixture ensures that the WiFi module meets pre-determined quality standards before shipment, safeguarding the performance and user experience of the final product. Specific functions of a WiFi module test fixture include: verifying the basic functionality of the WiFi module, such as successful startup, network connection, and data transmission; evaluating WiFi module performance indicators such as transmission rate, coverage range, power consumption, and anti-interference capabilities; operating the WiFi module for extended periods to verify its stability and reliability; and verifying the WiFi module's compatibility with various devices or software.

[0003] The USB (Universal Serial Bus) interface is a widely used interface standard for connection and data transmission between computers and external devices.

[0004] The SDIO (Secure Digital Input / Output) interface is an interface based on the Secure Digital (SD) card standard. It is used not only for storage devices but also supports other non-storage devices such as wireless communication cards, GPS modules, and cameras.

[0005] A DC socket usually refers to a DC power jack, which is a connector used to connect an external DC power supply to a test fixture or device.

[0006] IPEX is a brand name of I-PEX, a company that specializes in producing various types of electronic connectors, including antenna connectors for wireless communication equipment. The IPEX socket refers to an antenna interface used to connect wireless communication modules and test equipment.

[0007] In the existing technology, WiFi module testing devices have problems such as the overall fixture size is large, which is not conducive to setting up a test environment, the high cost of making separate WiFi module test fixtures with different interface models, and the difficulty in extending and expanding SDIO signals, which is not conducive to adapting to different test environment requirements.

[0008] The Chinese utility model with publication number CN211478478U discloses a WiFi module testing device and equipment. The utility model integrates testing structures such as a test needle plate, a module carrier plate, and a carrier plate pressure head with a shielding structure composed of a shielding box assembly. While pressing the fixture, sealed shielding is also achieved, which greatly simplifies the test operation steps and reduces the size of the entire WiFi module testing device. Although the device solves the problem that the overall volume of the WiFi module testing device is large and not conducive to setting up a test environment, the device does not reflect what interface model of the WiFi module it is suitable for. In an era of rapid development of wireless networks, the interfaces of WiFi modules include USB, SDIO, PCIE and other models. When producing WiFi modules that adapt to different interfaces, it is necessary to provide test fixtures corresponding to the interfaces. Therefore, designing a test fixture that can test WiFi modules with different interfaces can greatly save production costs. Therefore, it is urgent to design a structure to solve the above problems. Utility Model Content

[0009] In response to the problem that WiFi modules with different interfaces cannot be tested with the same test fixture in the above-mentioned technology, the utility model provides a WiFi module test fixture compatible with SDIO and USB interfaces, comprising a test baseboard, a module fixing block is provided on the board surface of the test baseboard, the module fixing block is provided with a fixing groove matching the WiFi module structure, a double-headed probe is installed in the fixing groove, one end of the double-headed probe is connected to the signal pin of the WiFi module, and the other end is connected to the test baseboard; the utility model also includes a DC socket and a USB connector, the DC socket and the USB connector are installed on the test baseboard avoiding the module fixing block and are electrically connected to the test baseboard, and the USB connector is also provided with a USB interface; the utility model also includes an SDIO gold finger interface, one end of the test baseboard extends outward to form the SDIO gold finger interface, and the SDIO gold finger interface is electrically connected to the test baseboard.

[0010] As a further improvement of the present invention, it further comprises an SD adapter board, wherein both the SD adapter board and the test base plate are provided with an IPEX socket, and the IPEX socket of the SD adapter board is electrically connected to the IPEX socket of the test base plate via a coaxial cable.

[0011] As a further improvement of the present invention, a test seat fixing block for fixing the module fixing block is further provided between the module fixing block and the test base plate.

[0012] As a further improvement scheme of the present invention, it also includes a flip-up test base, which is divided into a fixed part and a flip-up part. The fixed part is sleeved with the module fixing block and is installed on the test seat fixing block together with the module fixing block. The flip-up part is connected to the fixed part through a hinge.

[0013] As a further improvement of the present invention, the flip cover is provided with a fastening mechanism and several fixing parts are provided with fastening grooves. When the flip cover is in contact with the fixing part, the fastening mechanism is engaged with the fastening groove so that the fixing groove of the module fixing block forms a closed cavity.

[0014] As a further improvement of the present invention, the test base plate is fixed on a test base plate fixing frame, the test base plate fixing frame is installed with a plurality of support columns, and is fixed to the fixed base plate through the plurality of support columns.

[0015] The beneficial effect of the present invention is that, compared with the prior art, the present invention provides a WiFi module test fixture compatible with SDIO and USB interfaces. By setting a USB interface and an SDIO gold finger interface on a test baseboard, the same WiFi module test fixture can be used to test a WiFi module with a USB interface and a WiFi module with a SIOD interface. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is an overall diagram of the utility model.

[0017] Figure 2 for Figure 1 A partial enlarged view of area A in the middle.

[0018] Figure 3 It is a top view of the utility model.

[0019] Figure 4 This is a schematic diagram of the SDIO signal extension principle of the present utility model.

[0020] The main component symbols are described as follows:

[0021] 1. Test base plate; 2. Module fixing block; 3. Fixing slot; 4. DC socket; 5. USB connector;

[0022] 6. USB interface; 7. SDIO gold finger interface; 8. SD adapter board; 9. IPEX seat;

[0023] 10. Coaxial cable; 11. Test socket fixing block; 12. Flip test base; 13. Fixing part;

[0024] 14. Flip cover; 15. Fastening mechanism; 16. Fastening slot; 17. Test base plate fixing frame;

[0025] 18. Support column; 19. Fixed base plate. DETAILED DESCRIPTION

[0026] In order to more clearly illustrate the present invention, the present invention will be further described below with reference to the accompanying drawings.

[0027] In the following description, general examples are provided to provide a deeper understanding of the present invention. Obviously, the embodiments described are only a portion of the present invention, not all of it. It should be understood that the specific embodiments described are intended only to illustrate the present invention and are not intended to limit the present invention.

[0028] It should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the existence of features, integers, steps, operations, elements or components, but do not exclude the existence or addition of one or more other features, integers, steps, operations, elements, components or their combinations.

[0029] See also Figures 1 to 4 The utility model provides a WiFi module test fixture compatible with SDIO and USB interfaces, including a test base plate 1, a module fixing block 2 is provided on the board surface of the test base plate 1, the module fixing block 2 is provided with a fixing slot 3 matching the WiFi module structure, a double-headed probe is installed in the fixing slot 3, one end of the double-headed probe is connected to the signal pin of the WiFi module, and the other end is connected to the test base plate 1; it also includes a DC socket 4 and a USB connector 5, the DC socket 4 and the USB connector 5 avoid the module fixing block 2 and are installed on the test base plate 1, and are electrically connected to the test base plate 1, and the USB connector 5 is also provided with a USB interface 6; it also includes an SDIO gold finger interface 7, one end of the test base plate 1 extends outward to form the SDIO gold finger interface 7, and the SDIO gold finger interface 7 is electrically connected to the test base plate 1. In the WiFi module test fixture of the above structure, after the power is turned on through the DC socket 4, the WiFi module is installed in the fixing slot 3 of the module fixing block 2, so that the double-headed probe of the fixing slot 3 electrically connects the WiFi module and the test base plate 1, and then the external test end is selected through the USB interface 6 or the SDIO gold finger interface 7 according to the interface type adapted by the WiFi module, and finally the test is completed. Among them, the USB interface 6 is a USB A-TYPE interface, also known as the "Type A" interface, which refers to a standard physical shape of the USB interface 6, and the SDIO gold finger interface 7 is an SDIO Express gold finger interface, which can support higher data transmission speeds and has better performance than the standard SDIO interface.

[0030] See also Figure 1 、 Figure 2 and Figure 4In order to make the present invention adaptable to different test environments in spatial positions, the present invention further includes an SD adapter board 8. Both the SD adapter board 8 and the test base board 1 are provided with an IPEX seat 9. The IPEX seat 9 of the SD adapter board 8 is electrically connected to the IPEX seat 9 of the test base board 1 through a coaxial cable 10. The SD adapter board 8 is an SD Express adapter board, which is connected to the IPEX seat 9 of the test base board 1 through a coaxial cable 10, so that it can be used as a movable SDIO Express gold finger interface 7. When it is necessary to detect the SDIO interface WiFi module, since the external test end is not convenient to connect to the SDIO Express gold finger interface 7 on the WiFi test fixture, the SDIO Express gold finger interface 7 is physically extended through the coaxial cable 10, and the SDIO Express gold finger interface 7 is converted into the SD Express adapter board 8. The SD Express adapter board 8 is used to connect to the external test end, so that the WiFi module test fixture can adapt to more variable test environments. The specific operation is to connect the SDIO Disconnect the resistor connected to the SD Express gold finger, and then connect the IPEX female coaxial cable to the SD Express adapter board accordingly. When the SD Express adapter board is no longer needed, simply remove the coaxial cable to solve the SDIO signal extension problem.

[0031] See also Figure 1 In order to enable the module fixing block to be fixed on the test base plate, in the present invention, a test socket fixing block 11 for fixing the module fixing block 2 is further provided between the module fixing block 2 and the test base plate 1; the module fixing block 2 fixes the WiFi module through its fixing groove 3, and forms an electrical connection between the WiFi module and the test base plate through its double-headed probe, so the module fixing block 2 is fixed on the test base plate 1 through the test socket fixing block 11, which can ensure that the WiFi module and the test base plate 1 maintain a stable electrical connection.

[0032] See also Figure 1 and Figure 2In order to ensure the accuracy and consistency of the test results, the present invention also includes a flip test base 12. The flip test base 12 is divided into a fixed part 13 and a flip part 14. The fixed part 13 is sleeved on the module fixing block 2 and is installed on the test seat fixing block 11 together with the module fixing block 2. The flip part 14 is connected to the fixed part 13 through a hinge. The flip part 14 is provided with a fastening mechanism 15, and the fixing part 13 is provided with a fastening groove 16. When the flip part 14 is in contact with the fixing part 13, the fastening mechanism 15 is engaged with the fastening groove 16 so that the fixing groove 3 of the module fixing block 2 forms a closed cavity; the flip test base 12 is combined with the module fixing block 2. The fixing groove 3 is formed into a closed cavity, thereby constituting a shielding box structure. The shielding box structure controls its open state and closed state through the fastening mechanism 15 and the fastening groove 16 of the fixing part 13 and the flip part 14 in the flip test base 12, thereby realizing the opening and closing of the shielding box. When the WiFi module is tested, if the WiFi module is exposed to the outside, that is, it is not in a closed state of the shielding box, the WiFi module will be affected by the external wireless signal, which will affect the test structure. Therefore, when the WiFi module is tested, the WiFi module needs to be placed in the shielding box to isolate the external electromagnetic interference through the structure of the shielding box.

[0033] See also Figure 1 In order to fix the test base plate in a certain area, in the present invention, the test base plate 1 is fixed on the test base plate fixing frame 17, and the test base plate fixing frame 17 is installed with four supports 18 and is fixed to the fixed base plate 19 through four support columns 18; since the test base plate 1 has complex electrical properties, it is not appropriate to move the test base plate 1 directly, but the test base plate 1 is fixed on the test base plate fixing frame 17, and considering that the test base plate 1 requires a certain heat dissipation effect when working, the test base plate fixing frame 17 is set up with four support columns 18 to increase its heat dissipation area as much as possible, and finally the four support columns 18 are fixed to the fixed base plate 19.

[0034] Example:

[0035] Before the technical improvement, the WiFi module test fixture was large in size and was not compatible with WiFi modules with SDIO and USB interfaces. There was no SD Express adapter board, and the SDIO test interface was fixed on the test baseboard.

[0036] The technologically improved WiFi module test fixture has a compact size of 16*13*9.6cm (length*width*height), and multiple WiFi module test fixtures can be set up in a smaller space to improve production efficiency. It also has a USB A-TYPE interface and an SDIO Express gold finger interface, which can complete the test of LGA package 13*15mm SDIO WiFi modules or LGA package 13*15mm USB WiFi modules, so that WiFi modules of the same size but different interfaces can share the same set of WiFi module test fixtures, reducing costs. Finally, an IPEX socket is reserved for SDIO high-speed signals on the test baseboard and SD Express adapter board. The two boards can be connected via a coaxial cable, so that the SD Express adapter board can be transferred to the SD card interface of the laptop, which is convenient for adapting to different test environments.

[0037] During use, connect the external DC power supply to the DC socket of the test base plate through the DC connector, place the LGA package 13*15mm SDIO WiFi module or LGA package 13*15mm USB WiFi module to be tested in the module fixing block, then buckle the flip part of the flip test socket to start the test. When the SDIO high-speed signal needs to be extended, disconnect the resistor connected to the SDIOExpress gold finger, and then buckle the coaxial cable of the IPEX socket of the test base plate to make the coaxial cable match the IPEX socket of the SDExpress adapter board, so as to quickly realize the extension of the SDIO high-speed signal. When the extension of the SDIO high-speed signal is no longer used, just remove the coaxial cable to solve the SDIO signal extension. After the test is completed, buckle the fastening mechanism on the flip test socket, the flip part pops open, and the module is taken out.

[0038] The advantages of this utility model are:

[0039] 1. The utility model sets a USB interface and an SDIO gold finger interface on the test baseboard, so that the same WiFi module test fixture can be used to test the WiFi module with USB interface and the WiFi module with SDIO interface.

[0040] 2. The utility model sets an IPEX seat on the test baseboard and the SD adapter board, and then connects the IPEX seat through a coaxial cable, thereby achieving the extension of the SDIO high-speed signal, so that the WiFi module test fixture can adapt to different test environments.

[0041] The above disclosures are only a few specific embodiments of the present invention, but the present invention is not limited thereto. Any changes that can be conceived by those skilled in the art should fall within the scope of protection of the present invention.

Claims

1. A WiFi module test fixture compatible with SDIO and USB interfaces, characterized in that: The test base plate comprises a module fixing block provided on the board surface of the test base plate, the module fixing block is provided with a fixing groove matching the structure of the WiFi module, a double-headed probe is installed in the fixing groove, one end of the double-headed probe is connected to the signal pin of the WiFi module, and the other end is connected to the test base plate; It also includes a DC socket and a USB connector, which are installed on the test base plate away from the module fixing block and are electrically connected to the test base plate, and the USB connector is also provided with a USB interface; It also includes an SDIO gold finger interface. One end of the test base plate extends outward to form the SDIO gold finger interface, and the SDIO gold finger interface is electrically connected to the test base plate.

2. A WiFi module test fixture compatible with SDIO and USB interfaces according to claim 1, characterized in that: It also includes an SD adapter board. Both the SD adapter board and the test base board are provided with an IPEX seat. The IPEX seat of the SD adapter board is electrically connected to the IPEX seat of the test base board through a coaxial cable.

3. The WiFi module test fixture compatible with SDIO and USB interfaces according to claim 1, characterized in that: A test seat fixing block for fixing the module fixing block is further provided between the module fixing block and the test base plate.

4. A WiFi module test fixture compatible with SDIO and USB interfaces according to claim 3, characterized in that: It also includes a flip test base, which is provided with a fixing part and a flip part. The fixing part is sleeved on the module fixing block and is installed on the test seat fixing block together with the module fixing block. The flip part is connected to the fixing part through a hinge.

5. The WiFi module test fixture compatible with SDIO and USB interfaces according to claim 4, characterized in that: The flip cover portion is provided with a fastening mechanism, and the fixing portion is provided with a fastening groove. When the flip cover portion is fitted with the fixing portion, the fastening mechanism is engaged with the fastening groove so that the fixing groove of the module fixing block forms a closed cavity.

6. The WiFi module test fixture compatible with SDIO and USB interfaces according to claim 1, characterized in that: The test base plate is fixed on a test base plate fixing frame, and the test base plate fixing frame is installed with a plurality of support columns and is fixed to the fixed base plate through the plurality of support columns.

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