Multifunctional test fixture structure for MCU chip
By designing a multifunctional test fixture structure, the problems of cumbersome installation and limited testing in MCU chip testing were solved, enabling convenient chip installation and efficient testing.
Patent Information
- Application Number
- CN202521453853.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-11
- Publication Date
- 2026-06-16
- Estimated Expiration
- 2035-07-11
Smart Images

Figure CN224366094U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of MCU chip technology, specifically a multifunctional test fixture structure for MCU chips. Background Technology
[0002] MCU chip, or microcontroller unit, is an integrated circuit that integrates a processor, memory, and various peripheral interfaces. It is a core component of embedded systems and is widely used in various embedded systems.
[0003] When testing current MCU chips, the installation process is cumbersome due to the need to fix and solder the chip's support pins, which affects testing efficiency. In addition, the requirement for corresponding functional devices for testing makes the testing scenarios singular and unrepresentative. Utility Model Content
[0004] The purpose of this utility model is to provide a multifunctional test fixture structure for MCU chips, in order to solve the problems mentioned in the background art. When testing current MCU chips, the chip mounting operation is cumbersome due to the need to fix and solder the chip's support pins, which affects the testing efficiency. At the same time, the need for corresponding functional equipment for testing makes the testing scenario singular and unable to form a representative image.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A multifunctional test fixture structure for MCU chips includes a main support plate. A bottom pad is symmetrically threaded to the bottom surface of the main support plate. A side channel is horizontally formed on one side of the main support plate, and a sealing cover is horizontally engaged with the inner side of the side channel. A control panel is horizontally fixed to the top surface of the main support plate. A top receiving groove is horizontally formed on the top surface of the main support plate, and a flipping connecting block is engaged with the inner side of the top receiving groove. A support plate is positioned at the top of the flipping connecting block, and a display panel is fixed to the side of the support plate. Limiting grooves are symmetrically formed horizontally on the inner side of the side channel, and insertion interfaces are evenly distributed at the inner ends of the side channel. The inner side of the storage top groove is symmetrically provided with flip-out sleeve holes. An extension plate is horizontally fixed on one side of the sealing cover. Top screws are symmetrically engaged on both sides of the extension plate. Mounting holes are evenly provided on the top surface of the extension plate. A connector is evenly inserted into the end of the extension plate away from the sealing cover. Limit blocks are symmetrically fixed on both sides of the extension plate. A movable inner plate is symmetrically engaged on the inner side of the extension plate. A pressing side block is evenly fixed on the side of the movable inner plate. A mating screw hole is provided on one side of the movable inner plate. A connecting main plate is fixedly engaged on the inner wall of the extension plate. A flip-out shaft is inserted into the side of the flip-out connecting block.
[0007] In a preferred embodiment of this utility model, the number of bottom pads is four, and the four bottom pads are all fixedly connected by screws on the top surface to the bottom surface of the main support plate near the four corner screw holes. The side channel is horizontally opened at the center of the side of the main support plate near the bottom surface.
[0008] In a preferred embodiment of this utility model: one side of the sealing cover is fixedly connected to one end of the extension plate, the internal main board of the control panel and the connecting main board are electrically connected to each other, and the top slot is horizontally opened at the center of the top surface of the main support plate.
[0009] In a preferred embodiment of this utility model: the top of the flip-block is snapped into the center of the bottom surface of the support plate, the display panel and the internal main board of the control panel are electrically connected to each other, and the inner fabric of the plug interface is electrically connected to the internal main board of the control panel.
[0010] In a preferred embodiment of this utility model: the extension plate is horizontally extended and plugged into the inner side of the side channel, one end of the top screw is extended and threadedly connected to the inner side of the mating screw hole, the arrangement of the mounting holes is consistent with the arrangement of the chip's support feet, and multiple connectors are all plugged into the inner side of the connector to maintain electrical connection, and the connectors and the connecting motherboard maintain electrical connection with each other.
[0011] In a preferred embodiment of this utility model, the side of the limiting block is snapped into the inner side of the limiting inner groove, and one end of the pressing side block is inserted into the inner side of the mounting hole, with the screw hole located at the center of the side of the movable inner plate.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] This invention, by pulling the sealing cover outward, causes the extension plate to extend outward from the opening of the side channel, allowing the chip to be placed horizontally on the top surface of the extension plate. The chip's support feet are then inserted into the mounting holes. Rotating the side-mounted screw causes a threaded engagement between one end and the mating screw hole, pressing the movable inner plate horizontally. This forces the side-mounting block into the mounting hole 15, fixing the support feet inside, thus completing the chip installation. Pushing the extension plate causes multiple connectors at one end to be inserted into the internal electrical connection of the connector. The top support plate is then rotated out of the storage slot at a specified angle. The control panel is then configured to control the internal simulated scene of the display panel and the chip's interaction, detecting whether the chip can perform side-view processing. The integrated structure makes installation and use more convenient, while the combination of an analog testing structure makes testing and processing more efficient and comprehensive. Attached Figure Description
[0014] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:
[0015] Figure 1 This is a three-dimensional structural diagram of a multifunctional test fixture for MCU chips.
[0016] Figure 2 This is a schematic diagram showing the connection details of the three-dimensional cross-section of the main support plate of a multifunctional test fixture structure for MCU chips.
[0017] Figure 3 A schematic diagram showing the structural details of the three-dimensional connection of an extension board in a multifunctional test fixture structure for MCU chips;
[0018] Figure 4 This is a top-view cross-sectional view of the connection details of an extension board of a multifunctional test fixture structure for MCU chips.
[0019] Figure 5 This is a schematic diagram showing the structural details of the support plate of a multifunctional test fixture structure for MCU chips.
[0020] In the diagram: 1. Main support plate; 2. Bottom pad block; 3. Side channel; 4. Sealing cover plate; 5. Control panel; 6. Storage top channel; 7. Flip-over connecting block; 8. Support plate body; 9. Display panel; 10. Limiting inner channel; 11. Insertion interface; 12. Flip-over sleeve hole; 13. Extension insert plate; 14. Top connecting screw; 15. Mounting insertion hole; 16. Insertion connector; 17. Limiting block; 18. Movable inner plate; 19. Extrusion side block; 20. Mating screw hole; 21. Connecting main board; 22. Flip-over shaft. Detailed Implementation
[0021] Please see Figure 1 In this embodiment of the present invention, a multifunctional test fixture structure for MCU chips includes a main support plate 1. A bottom pad 2 is symmetrically threadedly fixed to the bottom surface of the main support plate 1. A side channel 3 is horizontally opened on one side of the main support plate 1. There are four bottom pads 2, each threadedly fixed to the bottom surface of the main support plate 1 near the four corner screw holes via screws on the top surface. The side channel 3 is horizontally opened at the center of the side of the main support plate 1 near the bottom surface. A sealing cover plate 4 is horizontally engaged on the inner side of the side channel 3. A control panel 5 is horizontally fixed to the top surface of the main support plate 1. The top surface of the support plate 1 is horizontally provided with a storage top groove 6. One side of the sealing cover plate 4 is fixedly connected to one end of the extension plate 13. The internal main board of the control panel 5 and the connecting main board 21 are electrically connected to each other. The storage top groove 6 is horizontally provided at the center of the top surface of the main support plate 1. The inner side of the channel of the storage top groove 6 is snapped with a flipping connecting block 7. The top of the flipping connecting block 7 is provided with a support plate body 8. The side of the support plate body 8 is fixedly provided with a display panel 9. The top of the flipping connecting block 7 is snapped at the center of the bottom surface of the support plate body 8. The display panel 9 and the internal main board of the control panel 5 are electrically connected to each other.
[0022] Please see Figure 2-5In this embodiment of the present invention, a multifunctional test fixture structure for MCU chips is provided, wherein the inner side of the side channel 3 is symmetrically provided with limiting inner grooves 10, and the inner end of the side channel 3 is uniformly provided with insertion interfaces 11. The inner fabric of the insertion interfaces 11 is electrically connected to the internal motherboard of the control panel 5. The inner side of the receiving top groove 6 is symmetrically provided with flip sleeve holes 12. One side of the sealing cover plate 4 is horizontally fixed with an extension plate 13. The two sides of the extension plate 13 are symmetrically snapped with top connecting screws 14. The top surface of the extension plate 13 is uniformly provided with mounting holes 15. The end of the extension plate 13 away from the sealing cover plate 4 is uniformly inserted with a connector 16. The extension plate 13 is horizontally extended and inserted into the inner side of the side channel 3. One end of the top connecting screw 14 is extended and threadedly connected to the inner side of the mating screw hole 20. The arrangement of the mounting holes 15 is as follows. The arrangement of the support feet of the chip is consistent with that of the chip. Multiple connectors 16 are connected to the inner side of the connector 11 to maintain electrical connection. The connectors 16 and the connecting motherboard 21 are also connected to each other. Limiting blocks 17 are symmetrically fixed on both sides of the extension plate 13. The inner side of the extension plate 13 is symmetrically snapped with a movable inner plate 18. The side of the movable inner plate 18 is uniformly fixed with pressing side blocks 19. A mating screw hole 20 is opened on one side of the movable inner plate 18. The side of the limiting block 17 is snapped with the inner side of the limiting inner groove 10. One end of each pressing side block 19 is connected to the inner side of the mounting hole 15. The mating screw hole 20 is opened at the center of the side of the movable inner plate 18. The inner wall of the extension plate 13 is fixedly snapped with the connecting motherboard 21. A flipping shaft 22 is inserted into the side of the flipping block 7.
[0023] The working principle of this utility model is as follows:
[0024] After pulling the sealing cover 4 outward, the extension plate 13 extends outward from the opening of the side channel 3, allowing the chip to be placed horizontally on the top surface of the extension plate 13. The chip's support feet are then inserted into the mounting holes 15. After rotating the side top screw 14, one end engages with the mating screw hole 20, pressing the movable inner plate 18 horizontally. This causes the side pressing block 19 to press into the mounting holes 15, fixing the support feet inside the mounting holes 15, thus completing the chip installation. After pushing the extension plate 13, multiple connectors 16 at one end are inserted into the internal electrical connection of the connector 11. The top support plate 8 is flipped out of the storage slot 6 at a specified angle. The control panel 5 is then set to control the internal simulation scene of the display panel 9 and the chip to coordinate and control the operation, thereby detecting whether the chip can perform the side view processing.
[0025] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A multifunctional test fixture structure for MCU chips, comprising a main support plate (1), characterized in that, The bottom surface of the main support plate (1) is symmetrically threaded with a bottom pad block (2). A side channel (3) is horizontally opened on one side of the main support plate (1). A sealing cover plate (4) is horizontally snapped into the inner side of the side channel (3). A control panel (5) is horizontally fixed on the top surface of the main support plate (1). A top storage groove (6) is horizontally opened on the top surface of the main support plate (1). A flipping connecting block (7) is snapped into the inner side of the groove of the top storage groove (6). A support plate body (8) is set at the top of the flipping connecting block (7). A display panel (9) is fixedly set on the side of the support plate body (8). A limit inner groove (10) is horizontally symmetrically opened on the inner side of the side channel (3). An insertion interface (11) is evenly opened on the inner end of the side channel (3). A flipping sleeve hole (12) is symmetrically opened on the inner side of the top storage groove (6). An extension plate (13) is horizontally fixed on one side of the sealing cover (4). Top screws (14) are symmetrically engaged on both sides of the extension plate (13). Mounting holes (15) are evenly opened on the top surface of the extension plate (13). A connector (16) is evenly inserted at the end of the extension plate (13) away from the sealing cover (4). Limiting blocks (17) are symmetrically fixed on both sides of the extension plate (13). A movable inner plate (18) is symmetrically engaged on the inner side of the extension plate (13). A pressing side block (19) is evenly fixed on the side of the movable inner plate (18). A mating screw hole (20) is opened on one side of the movable inner plate (18). A connecting main plate (21) is fixedly engaged on the inner wall of the extension plate (13). A flipping shaft (22) is inserted into the side of the flipping connecting block (7).
2. The multifunctional test fixture structure for MCU chips according to claim 1, characterized in that, The number of the bottom pads (2) is four, and the four bottom pads (2) are all fixedly connected by the screws on the top surface to the bottom surface of the main support plate (1) near the four corner screw holes. The side channel (3) is horizontally opened at the center of the side of the main support plate (1) near the bottom surface.
3. The multifunctional test fixture structure for MCU chips according to claim 1, characterized in that, The sealing cover (4) is fixedly connected to one end of the extension plate (13), the internal main board of the control panel (5) and the connecting main board (21) are electrically connected to each other, and the storage top groove (6) is horizontally opened at the center of the top surface of the main support plate (1).
4. The multifunctional test fixture structure for MCU chips according to claim 1, characterized in that, The top of the flip block (7) is snapped into the center of the bottom surface of the support plate (8). The display panel (9) and the internal main board of the control panel (5) are electrically connected to each other. The inner fabric of the plug interface (11) is electrically connected to the internal main board of the control panel (5).
5. The multifunctional test fixture structure for MCU chips according to claim 1, characterized in that, The extension plate (13) is horizontally extended and inserted into the inner side of the side channel (3). One end of the top screw (14) is extended and threaded into the inner side of the mating screw hole (20). The arrangement of the mounting holes (15) is consistent with the arrangement of the chip's support feet. Multiple connectors (16) are all inserted into the inner side of the connector (11) to maintain electrical connection. The connectors (16) and the connecting motherboard (21) maintain electrical connection with each other.
6. The multifunctional test fixture structure for MCU chips according to claim 1, characterized in that, The side of the limiting block (17) is snapped into the inner side of the limiting inner groove (10), and one end of the pressing side block (19) is inserted into the inner side of the mounting hole (15) in a corresponding manner, and the screw hole (20) is opened at the center of the side of the movable inner plate (18).