Shielding element detection tool
By designing an automated testing fixture for shielded components, and utilizing conductive pillars and a cylinder system to achieve automatic component fixation and electrical signal transmission, the problems of low testing efficiency, high cost, and easy damage in existing technologies are solved, thus realizing efficient and low-cost testing of shielded components.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI XINGPEI ELECTRONIC TECHNOLOGY CO LTD
- Filing Date
- 2025-08-04
- Publication Date
- 2026-07-24
AI Technical Summary
In the existing technology, the inspection of the internal shielding ring of the shielding component mainly relies on manual disassembly or complex large-scale testing instruments, which leads to low efficiency, high cost and easy damage to the component, requiring professional operation.
A shielded component testing fixture was designed, which uses conductive pillars and a cylinder system to automatically fix the component and transmit electrical signals. Combined with a time relay to control the dotting operation, automated testing is achieved.
It improves testing efficiency, reduces the risk of damage to components, simplifies the operation process, and reduces costs.
Smart Images

Figure CN224553304U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of shielding component testing technology, and in particular to a shielding component testing fixture. Background Technology
[0002] In electronic devices, shielding components play a crucial role, and the presence or absence of a shielding ring directly affects the shielding performance of these components. Currently, the inspection of the internal shielding rings of shielding components mostly relies on manual disassembly and observation or the use of complex, large-scale testing instruments. Manual disassembly and observation is inefficient and can easily cause irreversible damage to the shielding components, while using complex, large-scale testing instruments is not only costly but also requires specialized operators, hindering the rapid inspection of shielding components. Therefore, we propose a shielding component testing fixture. Utility Model Content
[0003] To address the aforementioned problems, this invention provides a testing fixture for shielding components. This invention solves the current practice of manually disassembling and observing the internal shielding rings of shielding components, or using complex, large-scale testing instruments. Manual disassembly and observation is inefficient and can easily cause irreversible damage to the shielding components, while using complex, large-scale testing instruments is not only costly but also requires specialized operators, hindering the rapid testing of shielding components.
[0004] This utility model discloses a shielding element testing fixture, comprising a housing, a support base located at the upper center of the housing, a cavity block located at the upper center of the support base, a mounting base located at the upper center of the support base, a placement groove located at the upper center of the mounting base, conductive posts located on both sides of the mounting base located in the placement groove, fixing posts located on both sides of the mounting base, a dotting cylinder located on one side of the support base located in the placement groove, a circuit board located at the bottom of the housing, a locking cylinder solenoid valve located on one side above the circuit board, a dotting cylinder solenoid valve located on one side of the locking cylinder solenoid valve, a first time relay located on the side of the dotting cylinder solenoid valve away from the locking cylinder solenoid valve, and a second time relay located on the side of the first time relay away from the dotting cylinder solenoid valve.
[0005] In the above scheme, the mounting base has fixing posts on both sides, a locking cylinder below the fixing posts, a cavity in the middle of the fixing posts, the stroke end of the locking cylinder extending into the cavity and fixedly connected to the movable block, a push rod on one side above the movable block, an installation groove in the middle of the upper end of the fixing posts, a pressure block in the installation groove, the pressure block being movably connected to the inner wall of the installation groove by a pin, and a through groove matching the pressure block on the cavity block.
[0006] In the above scheme, the mounting base is provided with positioning posts on both sides of the placement groove.
[0007] In the above scheme, a limiting rod is provided in the mounting groove near the push rod.
[0008] In the above scheme, a spring is provided above the side of the movable block away from the push rod.
[0009] The advantages and beneficial effects of this utility model are as follows: This utility model provides a shielding component testing fixture. A push rod pushes a pressure block, causing the pressure block to rotate inside the mounting slot via a pin. The side of the pressure block away from the pin squeezes the electrical component located inside the placement slot, thus stably fixing the electrical component inside the placement slot. The conductive post is electrically connected to the electrical component, and the conductive post is also electrically connected to the shielding metal ring inside the electrical component. When the product has a shielding metal ring inside, the electrical component conducts a negative electrical signal to the first time relay, activating the solenoid valve of the marking cylinder. The marking cylinder begins marking, and after a few seconds, it resets. Simultaneously, the second time relay activates, stopping the V power supply to the circuit board, unlocking the locking cylinder module, and the product passes the test. When the conductive post does not detect the shielding metal ring, the components inside the testing fixture do not operate. This testing fixture has a simple structure, good positioning effect, and high detection accuracy, effectively improving the testing efficiency of shielding components. Attached Figure Description
[0010] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0011] Figure 1 This is a schematic diagram of the structure of this utility model;
[0012] Figure 2 This is a partial exploded structural diagram of the present invention;
[0013] Figure 3 This is a cross-sectional view of the present invention;
[0014] Figure 4 This is a schematic diagram of part A of the present utility model;
[0015] Figure 5 This is a schematic diagram of part B of the present utility model.
[0016] In the diagram: 1. Housing; 2. Support base; 3. Cavity block; 4. Mounting base; 5. Placement groove; 6. Conductive post; 7. Positioning post; 8. Fixing post; 9. Locking cylinder; 10. Cavity; 11. Movable block; 12. Push rod; 13. Mounting groove; 14. Pressure block; 15. Limiting rod; 16. Through groove; 17. Spring; 18. Dotting cylinder; 19. Circuit board; 20. Locking cylinder solenoid valve; 21. Dotting cylinder solenoid valve; 22. First time relay; 23. Second time relay. Detailed Implementation
[0017] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings and examples. The following examples are only used to more clearly illustrate the technical solution of this utility model and should not be construed as limiting the scope of protection of this utility model.
[0018] like Figure 1-5 As shown, this utility model is a shielding component testing fixture, including a housing 1. A support base 2 is located at the upper center of the housing 1. A cavity block 3 is located at the upper center of the support base 2. A mounting base 4 is located at the upper center of the support base 2. A placement groove 5 is located at the upper center of the mounting base 4. The electrical component to be tested can be placed inside the placement groove 5. Conductive posts 6 are located on both sides of the mounting base 4 in the placement groove 5. Fixing posts 8 are located on both sides of the mounting base 4. When the electrical component is placed inside the placement groove 5, the conductive posts 6 are electrically connected to the electrical component. A dotting cylinder 18 is located on one side of the support base 2 in the placement groove 5. A circuit board 19 is located at the bottom of the housing 1. A locking cylinder solenoid valve 20 is located on one side above the circuit board 19. The locking cylinder solenoid valve 20 is provided with a dotting cylinder solenoid valve 21 on one side. The dotting cylinder solenoid valve 21 is provided with a first time relay 22 on the side away from the locking cylinder solenoid valve 20. The first time relay 22 is provided with a second time relay 23 on the side away from the dotting cylinder solenoid valve 21. The conductive post 6 is connected to the shielding metal ring inside the electrical component. When the product has a shielding metal ring inside, the electrical component conducts a negative electrical signal to the first time relay 22, the dotting cylinder solenoid valve 21 starts to work, the dotting cylinder 18 starts dotting, and after 2 seconds, the dotting cylinder 18 resets. At the same time, the second time relay 23 starts to work, the 24V power supply to the circuit board 19 is stopped, the locking cylinder 9 unlocks the module, and the product passes the test.
[0019] The mounting base 4 is provided with fixing posts 8 on both sides. A locking cylinder 9 is provided below the fixing post 8. A cavity 10 is provided in the middle of the fixing post 8. The stroke end of the locking cylinder 9 extends into the cavity 10 and is fixedly connected to the movable block 11. The movable block 11 can move vertically inside the cavity 10. A push rod 12 is provided on one side above the movable block 11. An installation groove 13 is provided in the middle of the upper end of the fixing post 8. A pressure block 14 is provided in the installation groove 13. The pressure block 14 is movably connected to the inner wall of the installation groove 13 by a pin. A through groove 16 matching the pressure block 14 is provided on the cavity block 3. When the locking cylinder 9 is in operation, it pushes the movable block 11 to move vertically. As the movable block 11 moves, the push rod 12 also moves, pushing the pressure block 14. This causes the pressure block 14 to rotate inside the mounting groove 13 via the pin. The side of the pressure block 14 away from the pin presses against the electrical component located inside the placement groove 5, thereby stably fixing the electrical component inside the placement groove 5.
[0020] The mounting base 4 is located in the placement groove 5 and is provided with positioning posts 7 on both sides. The positioning posts 7 can fix the electrical components.
[0021] A limiting rod 15 is provided in the mounting groove 13 near the push rod 12, which can limit the rotation of the pressure block 14.
[0022] A spring 17 is provided above the movable block 11 on the side away from the push rod 12. The two ends of the spring 17 are fixedly connected to the top of the cavity 10 and the movable block 11, respectively. When the movable block 11 moves upward, the spring 17 is compressed by force. After the test is completed, the movable block 11 is more likely to automatically reset under the action of the spring force of the spring 17.
[0023] Specifically, in this utility model, when the electrical component is placed inside the placement slot 5, the locking cylinder 9 pushes the movable block 11 to move vertically. When the movable block 11 moves, the push rod 12 also moves accordingly, pushing the pressure block 14, causing the pressure block 14 to rotate inside the mounting slot 13 via the pin. The side of the pressure block 14 away from the pin squeezes the electrical component located inside the placement slot 5, thereby allowing the electrical component to be stably fixed inside the placement slot 5. The conductive post 6 is connected to the electrical component, and the conductive post 6 is connected to the shielding metal ring inside the electrical component. When the product has a shielding metal ring inside, the electrical component conducts a negative electrical signal to the first time relay 22, the solenoid valve 21 of the dotting cylinder starts to work, the dotting cylinder 18 starts dotting, and after 2 seconds of timing, the dotting cylinder 18 resets. At the same time, the second time relay 23 starts to work, stopping the 24V power supply to the circuit board 19, the locking cylinder 9 unlocks the module, and the product passes the test. When the conductive post 6 does not detect the shielding metal ring, the internal components of the testing fixture do not work.
[0024] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A testing fixture for shielded components, comprising a housing (1), characterized in that, The housing (1) is provided with a support base (2) at the upper center, and a cavity block (3) is provided at the upper center of the support base (2). The support base (2) is provided with a mounting base (4) at the upper center, and a placement groove (5) is provided at the upper center of the mounting base (4). The mounting base (4) is provided with conductive posts (6) on both sides of the placement groove (5). The mounting base (4) is provided with fixing posts (8) on both sides. The support base (2) is provided with a dotting cylinder (18) on one side of the placement groove (5). The housing (1) is provided with a circuit board (19) at the bottom. The circuit board (19) is provided with a locking cylinder solenoid valve (20) on one side above it. The locking cylinder solenoid valve (20) is provided with a dotting cylinder solenoid valve (21) on one side. The dotting cylinder solenoid valve (21) is provided with a first time relay (22) on the side away from the locking cylinder solenoid valve (20). The first time relay (22) is provided with a second time relay (23) on the side away from the dotting cylinder solenoid valve (21).
2. The shielding element testing fixture according to claim 1, characterized in that, The mounting base (4) is provided with fixing posts (8) on both sides. A locking cylinder (9) is provided below the fixing post (8). A cavity (10) is provided in the middle of the fixing post (8). The stroke end of the locking cylinder (9) extends into the cavity (10) and is fixedly connected to the movable block (11). A push rod (12) is provided on one side above the movable block (11). An installation groove (13) is provided in the middle of the upper end of the fixing post (8). A pressure block (14) is provided in the installation groove (13). The pressure block (14) is movably connected to the inner wall of the installation groove (13) through a pin. A through groove (16) matching the pressure block (14) is provided on the cavity block (3).
3. The shielding element testing fixture according to claim 1, characterized in that, The mounting base (4) is located in the placement slot (5) and has positioning posts (7) on both sides.
4. The shielding element testing fixture according to claim 2, characterized in that, A limiting rod (15) is provided in the mounting groove (13) near the push rod (12).
5. The shielding element testing fixture according to claim 2, characterized in that, A spring (17) is provided above the side of the movable block (11) away from the push rod (12).