Communication mainboard test fixture

Abstract

The utility model discloses a communication mainboard test fixture which comprises a shielding box, the bottom of the shielding box is fixedly connected with a base, two electric push rods are fixedly installed in the base, the movable ends of the electric push rods extend to the outer side of the base and are fixedly provided with installation bases, the installation bases are connected with connecting plates in a clamped mode, and the connecting plates are fixedly connected with the shielding box. A connecting piece is installed on the connecting plate, and a clamp body is detachably installed on the connecting piece. According to the utility model, the integrated shielding box is matched with the inlet hole, and the electric push rod and the mounting seat are matched with the connecting piece on the connecting seat to realize the front-out opening and closing of the clamp main body, so that the device is more convenient to assemble and disassemble the communication mainboard and the test clamp, the front-out opening and closing mode is adopted, and the assembly and disassembly are more convenient. The electromagnetic shielding shell is more convenient to assemble and disassemble, and the shielding sealing performance of the electromagnetic shielding shell is better.

Description

Technical Field

[0001] This utility model relates to the field of test fixture technology, specifically a communication motherboard test fixture. Background Technology

[0002] A communication motherboard test fixture is a tool specifically designed for testing communication motherboards. It includes connectors that match various interfaces on the motherboard, such as USB interfaces, network interfaces (RJ-45, etc.), and serial interfaces. These interfaces can be accurately connected to their corresponding ports on the motherboard to enable signal transmission and testing. For example, when testing a communication motherboard with multiple USB 3.0 ports, the USB interface portion of the test fixture must ensure a tight connection with the motherboard's USB ports and comply with USB 3.0 electrical performance standards. This is crucial for accurately testing the data transfer speed, power supply capacity, and other performance indicators of the USB interfaces. To ensure the stability of the communication motherboard during testing, the test fixture typically has a dedicated fixing device. This can be a clamp-type structure, using screws or clips to secure the motherboard to the fixture. For example, for smaller communication motherboards, simple plastic clips may be used for fixation, ensuring the motherboard doesn't wobble and facilitating installation and removal; while for larger motherboards or those that need to withstand vibration during testing, metal screws may be used for a more secure fixation.

[0003] However, current testing equipment is generally equipped with an electromagnetic shielding shell on the outside. In order to reduce electromagnetic interference during testing, the electromagnetic shielding shell is usually opened and closed from the top with a flip-top design. The test fixture is located inside the electromagnetic shielding shell. When loading and unloading the motherboard, a switching operation is required, which requires a large operating space. In addition, the opening angle of the flip-top is generally limited, which restricts the operation when loading and unloading the test fixture and makes it inconvenient. Utility Model Content

[0004] In view of the problems existing in the prior art, the purpose of this utility model is to provide a communication motherboard test fixture to solve the problems in the background technology.

[0005] To achieve the above objectives, the present invention adopts the following technical solution;

[0006] A communication motherboard test fixture includes a shielding box, a base fixedly connected to the bottom of the shielding box, two electric push rods fixedly installed inside the base, the movable ends of the electric push rods extending to the outside of the base and fixedly installed with mounting seats, a connecting plate snapped onto the mounting seats, a connector mounted on the connecting plate, a fixture body detachably mounted on the connector, an entry hole opened on the front of the shielding box, and a docking frame provided on the outside of the entry hole.

[0007] As a further description of the above technical solution: the connector includes two long bolts, a positioning plate and a clamp mounting plate. One end of the long bolt passes through one side of the connecting plate, the positioning plate and the clamp mounting plate in sequence and is threadedly connected to them. The bottom of the clamp body is fixedly installed to the top of the clamp mounting plate. The positioning plate fits into the docking frame.

[0008] As a further description of the above technical solution: the side view of the fixture mounting plate is L-shaped, and the vertical edge of the fixture mounting plate is in contact with the positioning plate.

[0009] As a further description of the above technical solution: the bottom of the connecting plate is provided with an insertion hole, the top of the mounting base is inserted into the inside of the insertion hole, and three locking bolts are threaded on the connecting plate to lock the connecting plate and the mounting base.

[0010] As a further description of the above technical solution: a pressure sensor is movably mounted on the side of the base facing the mounting seat. One end of the pressure sensor passes through and slides into the interior of the base. A thrust spring is sleeved on the outside of the pressure sensor. One end of the thrust spring is fixedly connected to the outside of the pressure sensor, and the other end of the thrust spring is fixedly connected to the base.

[0011] As a further description of the above technical solution: the inner wall of the shielding box is fixedly connected with a shielding cover liner.

[0012] Compared with existing technologies, the advantages of this utility model are:

[0013] This solution uses an integrated shielding box with an access hole, and works with an electric push rod and mounting base with connectors on the connecting base to achieve front-mounted opening and closing of the fixture body. This makes it easier to load and unload the communication motherboard onto the test fixture. The front-mounted opening and closing method not only makes loading and unloading more convenient, but also improves the shielding and sealing performance of the electromagnetic shielding shell. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a three-dimensional cross-sectional structural diagram of the present invention;

[0016] Figure 3 This is a frontal cross-sectional view of the present invention.

[0017] Figure 4 for Figure 3 Enlarged schematic diagram of the structure of section A in the middle.

[0018] Explanation of the labels in the diagram:

[0019] 1. Shielding box; 2. Base; 21. Pressure sensor; 22. Thrust spring; 3. Electric push rod; 4. Mounting base; 5. Connecting plate; 51. Insertion hole; 52. Locking bolt; 6. Connecting piece; 61. Long bolt; 62. Positioning plate; 63. Fixture mounting plate; 7. Fixture body; 8. Entry hole; 9. Docking frame; 10. Shielding cover liner. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0021] Please see Figures 1-4 In this utility model, a communication motherboard test fixture includes a shielding box 1. A base 2 is fixedly connected to the bottom of the shielding box 1. Two electric push rods 3 are fixedly installed inside the base 2. The movable ends of the electric push rods 3 extend to the outside of the base 2 and are fixedly installed with mounting seats 4. A connecting plate 5 is snapped onto the mounting seat 4. A connector 6 is installed on the connecting plate 5. A fixture body 7 is detachably installed on the connector 6. An entry hole 8 is opened on the front of the shielding box 1. A docking frame 9 is provided on the outside of the entry hole 8.

[0022] In this invention, the shielding box 1 serves as the electromagnetic shielding shell. During use, the two electric push rods 3 on the base 2 move the mounting base 4 forward, causing the connector 6 on the connecting plate 5 to move to the outside of the shielding box 1, exposing the clamp body 7 on the connector 6. The communication motherboard is then installed onto the clamp body 7. The electric push rods 3 are then activated to move the clamp body 7 back into the shielding box 1, ensuring the connector 6 contacts and adheres tightly to the docking frame 9, achieving complete sealing. The communication motherboard is then powered on for testing. Furthermore, the connector 6 and connecting plate 5 are easily disassembled and reassembled, facilitating clamp replacement. The type of main body 7 is suitable for different types of communication motherboards, thus enabling the device to more conveniently load and unload communication motherboards onto the test fixture. The front-opening design not only makes loading and unloading more convenient, but also improves the shielding and sealing performance of the electromagnetic shielding shell. This solves the problem that in the prior art, most electromagnetic shielding shells open from the top with a flip-top design, while the test fixture is located inside the electromagnetic shielding shell. When loading and unloading the motherboard, a switching operation is required, which requires a large operating space. In addition, the angle of the flip-top opening is generally limited, which restricts the operation of loading and unloading the test fixture and makes it inconvenient.

[0023] Please see Figure 2 and Figure 3 The connector 6 includes two long bolts 61, a positioning plate 62, and a clamp mounting plate 63. One end of the long bolt 61 passes through one side of the connector 5, the positioning plate 62, and the clamp mounting plate 63 and is threaded to them. The bottom of the clamp body 7 is fixedly installed to the top of the clamp mounting plate 63. The positioning plate 62 fits into the docking frame 9.

[0024] In this utility model, the clamp mounting plate 63 and the positioning plate 62 are connected and positioned to the connecting plate 5 by rotating the long bolt 61, which gives it the advantage of being detachable and replaceable.

[0025] Please see Figure 2 and Figure 3 The clamp mounting plate 63 has an L-shaped side view and its vertical edge is in contact with the positioning plate 62.

[0026] In this invention, the L-shaped clamp mounting plate 63 makes the fit between the device and the positioning plate 62 more stable, thus improving the structural stability of the device.

[0027] Please see Figure 2 and Figure 4 The bottom of the connecting plate 5 is provided with an insertion hole 51, and the top of the mounting base 4 is inserted into the insertion hole 51. Three locking bolts 52 are threaded on the connecting plate 5, and the locking bolts 52 lock the connecting plate 5 and the mounting base 4.

[0028] In this utility model, the mounting base 4 and the connecting plate 5 are easily installed through the insertion hole 51, and the locking bolt 52 is used for locking and positioning, which improves the structural stability and facilitates disassembly and replacement.

[0029] Please see Figure 1 The pressure sensor 21 is movably mounted on the side of the base 2 facing the mounting base 4. One end of the pressure sensor 21 passes through and slides into the interior of the base 2. A thrust spring 22 is sleeved on the outside of the pressure sensor 21. One end of the thrust spring 22 is fixedly connected to the outside of the pressure sensor 21, and the other end of the thrust spring 22 is fixedly connected to the base 2.

[0030] In this invention, when the positioning plate 62 is reset and attached to the docking frame 9, the mounting base 4 at the bottom contacts and squeezes the pressure sensor 21. In conjunction with the push spring 22, the pressure sensor 21 detects the closing force of the positioning plate 62 to ensure that the closing pressure is qualified and to ensure the shielding effect.

[0031] Please see Figure 3 Among them, the inner wall of the shielding box 1 is fixedly connected with the shielding cover liner 10.

[0032] In this invention, the electromagnetic shielding effect of the shielding box 1 is improved by using the inner lining 10 of the shielding cover.

[0033] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A communication motherboard test fixture, comprising a shielding box (1), characterized in that: The bottom of the shielding box (1) is fixedly connected to a base (2). Two electric push rods (3) are fixedly installed inside the base (2). The movable end of the electric push rod (3) extends to the outside of the base (2) and is fixedly installed with a mounting seat (4). A connecting plate (5) is snapped onto the mounting seat (4). A connector (6) is installed on the connecting plate (5). A clamp body (7) is detachably installed on the connector (6). An entry hole (8) is opened on the front of the shielding box (1). A docking frame (9) is provided on the outside of the entry hole (8).

2. The communication motherboard test fixture according to claim 1, characterized in that: The connector (6) includes two long bolts (61), a positioning plate (62) and a clamp mounting plate (63). One end of the long bolt (61) passes through one side of the connecting plate (5), the positioning plate (62) and the clamp mounting plate (63) and is threaded to them. The bottom of the clamp body (7) is fixedly installed to the top of the clamp mounting plate (63). The positioning plate (62) fits into the docking frame (9).

3. A communication motherboard test fixture according to claim 2, characterized in that: The side view of the fixture mounting plate (63) is L-shaped, and the vertical edge of the fixture mounting plate (63) is in contact with the positioning plate (62).

4. A communication motherboard test fixture according to claim 1, characterized in that: The bottom of the connecting plate (5) is provided with a socket (51), and the top of the mounting base (4) is inserted into the socket (51). Three locking bolts (52) are threaded on the connecting plate (5) and the locking bolts (52) lock the connecting plate (5) and the mounting base (4).

5. A communication motherboard test fixture according to claim 1, characterized in that: A pressure sensor (21) is movably mounted on the side of the base (2) facing the mounting base (4). One end of the pressure sensor (21) passes through and slides into the interior of the base (2). A thrust spring (22) is sleeved on the outside of the pressure sensor (21). One end of the thrust spring (22) is fixedly connected to the outside of the pressure sensor (21), and the other end of the thrust spring (22) is fixedly connected to the base (2).

6. A communication motherboard test fixture according to claim 1, characterized in that: The inner wall of the shielding box (1) is fixedly connected to the shielding cover liner (10).

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