High-protection BGA test probe

Abstract

The utility model discloses a high-protection BGA test probe, relates to the technical field of BGA test probes, and aims to solve the problems that a probe body of an existing BGA test probe is protected by arranging a protective sleeve shell outside, but due to sleeve protection of the protective sleeve shell, the probe is inconvenient to push, contact and test, and the service life of the BGA test probe is prolonged. The test probe comprises a protective sleeve, an internal connection probe body is arranged in the protective sleeve, one end of the internal connection probe body is provided with a movable end head, one end of the movable end head is provided with a probe head, the probe head and the movable end head are of an integrated structure, and one end of the protective sleeve is provided with a sealing cap; the guide screw hole is formed in the other end of the protective sleeve, a threaded linkage rod is movably arranged in the guide screw hole in a penetrating mode, an internal connection rotating head is arranged at one end of the threaded linkage rod, an anti-disengagement circular groove is formed in the movable connection position of the internal connection rotating head and one end of the internal connection needle body, and the anti-disengagement circular groove and the internal connection needle body are of an integrated structure.

Description

Technical Field

[0001] The utility model relates to the technical field of BGA test probes, in particular to a high-protection BGA test probe. Background Art

[0002] There are many types of test probes, including PCB probes, ICT functional test probes, BGA test probes, etc. BGA probes are mainly used for BGA packaging testing and chip testing.

[0003] For example, the announcement number is: CN207248939U (named as a BGA test probe), which includes a protective shell, a test probe body and a protective shell. The protective shell is installed on the outside of the center of the test probe body. The inner cavity of the protective shell is provided with a connecting frame, and the upper and lower ends of the connecting frame are clamped with connecting card shells. One side of the inner end of the connecting frame is provided with a socket interface, one side of the outer end of the connecting frame is clamped with a first control shaft, and the other side of the outer end of the connecting frame is clamped with a second control shaft. The center position of the protective shell is elastically connected with a telescopic spring, and the side end of the telescopic spring is telescopically connected with a connecting rod. Both ends of the protective shell are clamped with a rotating frame, and the outer end of the rotating frame is provided with a socket interface. A probe head is installed, the outer end of the probe head is socketed with a protective shell, a connecting shell is installed at the inner end of the protective shell, a plug-in hole is opened at the center of the connecting shell, a fastening frame is connected to the bottom end of the connecting shell, a rotating thread is opened in the inner cavity of the fastening frame, a protective gasket is socketed at the outer end of the fastening frame, the connecting shell is connected to the probe head through the plug-in hole, and the plug-in hole at the inner end of the protective shell is installed to realize the communication of the outer end, so that the inner end can be fixed, and the plug-in hole is set to make it snap-fit ​​with the probe head to prevent the protective shell from falling off, and a rotating thread and a protective gasket are provided at the bottom to achieve fastening, so that the telescopic spring can be fixed more conveniently.

[0004] The above-mentioned BGA test probe protects the needle body by providing a protective sleeve on the outside, but due to the sleeve protection of the protective sleeve, the probe push contact test operation is inconvenient, resulting in poor test accuracy of the test probe. For this reason, we provide a high-protection BGA test probe. Utility Model Content

[0005] The purpose of the utility model is to provide a high-protection BGA test probe to solve the problem that the existing BGA test probe proposed in the above background technology protects the needle body by arranging a protective sleeve on the outside, but due to the sleeve protection of the protective sleeve, the probe push contact test operation is inconvenient, resulting in poor test accuracy of the test probe.

[0006] To achieve the above object, the utility model provides the following technical solutions: a high-protection BGA test probe, comprising a protective sleeve, an inner needle body is arranged inside the protective sleeve, a movable end is arranged at one end of the inner needle body, a needle is arranged at one end of the movable end, the needle and the movable end are an integrated structure, and a sealing cap is installed at one end of the protective sleeve;

[0007] Also includes:

[0008] A guide screw hole is arranged at the other end of the protective sleeve, and a threaded linkage rod is movably arranged inside the guide screw hole, an inner rotating head is arranged at one end of the threaded linkage rod, and an anti-dropping circular groove is arranged at the movably connected position between the inner rotating head and one end of the inner needle body, and the anti-dropping circular groove and the inner needle body are an integrated structure;

[0009] A hollow inner cavity is arranged inside the inner needle body, and a return spring is arranged inside the hollow inner cavity. A movable perforation is arranged at the penetration connection position between the extension end and the hollow inner cavity. The movable perforation is connected to the interior of the hollow inner cavity, and the two ends of the return spring are fixedly connected to the hollow inner cavity and the extension end respectively by nail-free glue.

[0010] Preferably, a threaded through hole is provided inside the sealing cap, a connecting screw is installed in the threaded through hole, an assembling screw hole is provided at the connecting position of the connecting screw and the protective sleeve, and the assembling screw hole and the protective sleeve are an integrated structure.

[0011] Preferably, a rotating rod is provided at one end of the connecting screw rod, the rotating rod and the connecting screw rod are an integral structure, and the sealing cap is fixedly connected to the protective sleeve through the connecting screw rod.

[0012] Preferably, an extension strip is provided on the outer wall of the inner needle body, the extension strip and the inner needle body are an integral structure, a guide slot is provided at the connection position between the extension strip and the protective sleeve, and the guide slot and the protective sleeve are an integral structure.

[0013] Preferably, a limiting block is provided on an outer wall of one side of the extension end, the limiting block and the extension end are an integral structure, and the extension end is connected to the movable perforated limiting device via the limiting block.

[0014] Preferably, a screw cap is provided at the other end of the threaded linkage rod, and the screw cap and the threaded linkage rod are an integrated structure.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. The utility model enables the threaded linkage rod to guide along the guide screw hole by rotating the cap forward, thereby pushing the internal needle body to feed, so that the needle head and the probe seat are in contact and connected. After the contact and connection, the extended end is retracted into the interior of the hollow inner cavity, and under the action of the reset spring, the reset spring continuously applies a downward thrust to the extended end, so that the contact between the needle head and the probe seat is tighter and more stable, thereby improving the accuracy of the BGA test probe during the test process, and overcoming the problem that the existing BGA test probe protects the needle body by providing a protective sleeve shell on the outside, but due to the sleeve protection of the protective sleeve shell, the probe push contact test operation is inconvenient, resulting in poor test accuracy of the test probe.

[0017] 2. After the test is completed, reverse the cap to put the test probe into the protective sleeve, and install the sealing cap on one end of the protective sleeve to store and protect the BGA test probe, so as to achieve the purpose of efficient sealing and protection of the BGA test probe. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of the high-protection BGA test probe of the utility model;

[0019] Figure 2 This is a schematic diagram of the internal needle structure of the utility model;

[0020] Figure 3 It is a schematic diagram of the connection structure of the inner needle body, the movable end and the threaded linkage rod of the utility model;

[0021] Figure 4 This is a schematic diagram of the connection structure between the inner needle body and the protective sleeve of the utility model;

[0022] In the figure: 1. Protective sleeve; 2. Movable end; 3. Extended end; 4. Needle; 5. Sealing cap; 6. Threaded through hole; 7. Connecting screw rod; 8. Turning rod; 9. Guide screw hole; 10. Threaded linkage rod; 11. Tightening cap; 12. Internal needle body; 13. Extended side strip; 14. Hollow inner cavity; 15. Movable through hole; 16. Reset spring; 17. Limit block; 18. Anti-slip circular groove; 19. Internal turning head; 20. Guide slide groove; 21. Assembly screw hole. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0024] See also Figure 1-4The utility model provides an embodiment: a high-protection BGA test probe, including a protective sleeve 1, an inner needle body 12 is arranged inside the protective sleeve 1, a movable end 2 is arranged at one end of the inner needle body 12, a needle 4 is arranged at one end of the movable end 2, the needle 4 and the movable end 2 are an integral structure, and a sealing cap 5 is installed at one end of the protective sleeve 1;

[0025] Also includes:

[0026] A guide screw hole 9 is arranged at the other end of the protective sleeve 1, and a threaded linkage rod 10 is movably arranged inside the guide screw hole 9, an inner rotating head 19 is arranged at one end of the threaded linkage rod 10, and an anti-dropping circular groove 18 is arranged at the movably connected position between the inner rotating head 19 and one end of the inner needle body 12, and the anti-dropping circular groove 18 and the inner needle body 12 are an integral structure;

[0027] The hollow inner cavity 14 is arranged inside the inner needle body 12, and a return spring 16 is arranged inside the hollow inner cavity 14. A movable through hole 15 is arranged at the connection position between the extension end 3 and the hollow inner cavity 14. The movable through hole 15 is connected to the interior of the hollow inner cavity 14, and the two ends of the return spring 16 are fixedly connected to the hollow inner cavity 14 and the extension end 3 respectively by nail-free glue.

[0028] When in use, the cap is screwed on by turning forward, so that the threaded linkage rod moves along the guide screw hole, thereby pushing the internal needle body to feed, so that the needle tip is in contact and connected with the probe seat. After contact and connection, the extended end is retracted into the interior of the hollow inner cavity. Under the action of the return spring, the return spring continuously applies a downward thrust to the extended end, so that the contact between the needle tip and the probe seat is tighter and more stable.

[0029] See also Figure 1 and Figure 4 A threaded through hole 6 is provided inside the sealing cap 5, and a connecting screw rod 7 is installed in the threaded through hole 6. An assembling screw hole 21 is provided at the connecting position of the connecting screw rod 7 and the protective sleeve 1. The assembling screw hole 21 and the protective sleeve 1 are an integrated structure. The threaded through hole 6 provided inside the sealing cap 5 serves to facilitate the installation of the connecting screw rod 7.

[0030] See also Figure 1 A rotating rod 8 is provided at one end of the connecting screw rod 7. The rotating rod 8 and the connecting screw rod 7 are an integrated structure. The sealing cap 5 is fixedly connected to the protective sleeve 1 through the connecting screw rod 7. The rotating rod 8 provided at one end of the connecting screw rod 7 serves to facilitate the grasping and rotation of the connecting screw rod 7.

[0031] See also Figure 4An extended side strip 13 is provided on the outer wall of the inner needle body 12, and the extended side strip 13 and the inner needle body 12 are an integrated structure. A guide groove 20 is provided at the connecting position between the extended side strip 13 and the protective sleeve 1, and the guide groove 20 and the protective sleeve 1 are an integrated structure. The extended side strip 13 provided on the outer wall of the inner needle body 12 plays the role of guiding and movable connection with the guide groove 20.

[0032] See also Figure 3 A limiting block 17 is provided on the outer wall of one side of the extension end 3. The limiting block 17 and the extension end 3 are an integral structure. The extension end 3 is limitedly connected with the movable through hole 15 through the limiting block 17. The limiting block 17 provided on the outer wall of one side of the extension end 3 plays a role of limiting and preventing disengagement.

[0033] See also Figure 1 The other end of the threaded linkage rod 10 is provided with a screw cap 11, which is an integrated structure with the threaded linkage rod 10. The screw cap 11 provided at the other end of the threaded linkage rod 10 facilitates the rotation of the threaded linkage rod 10.

[0034] Working principle: When in use, rotate the rotating rod 8 to remove the connecting screw rod 7 from the inside of the threaded through hole 6 and the assembly screw hole 21, so that the sealing cap 5 can be removed from one end of the protective sleeve 1, and then the needle 4 of the test probe is aligned with the probe seat on the BGA package test, and then the cap 11 is turned forward to make the threaded linkage rod 10 guide along the guide screw hole 9, thereby pushing the internal needle body 12 to feed, so that the needle 4 is in contact and connected with the probe seat. After the contact and connection, the extension end 3 is received into the inside of the hollow inner cavity 14. Under the action of the reset spring 16, the reset spring 16 continuously applies a downward thrust to the extension end 3, so that the contact between the needle 4 and the probe seat is tighter and more stable, thereby improving the accuracy of the BGA test probe during the test process. After the test is completed, reverse the cap 11 to receive the test probe into the inside of the protective sleeve 1, and install the sealing cap 5 at one end of the protective sleeve 1 to store and protect the BGA test probe, thereby completing the use of the high-protection BGA test probe.

[0035] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A high-protection BGA test probe, comprising a protective sleeve (1), an inner needle body (12) is arranged inside the protective sleeve (1), a movable end (2) is arranged at one end of the inner needle body (12), a needle head (4) is arranged at one end of the movable end (2), the needle head (4) and the movable end (2) are an integral structure, and a sealing cap (5) is installed at one end of the protective sleeve (1); Features: Also includes: A guide screw hole (9) is arranged at the other end of the protective sleeve (1), and a threaded linkage rod (10) is movably arranged inside the guide screw hole (9), an inner rotating head (19) is arranged at one end of the threaded linkage rod (10), and an anti-dropping circular groove (18) is arranged at a movably connected position between the inner rotating head (19) and one end of the inner needle body (12), and the anti-dropping circular groove (18) and the inner needle body (12) are an integral structure; A hollow inner cavity (14) is arranged inside the inner needle body (12), and a return spring (16) is arranged inside the hollow inner cavity (14). A movable perforation (15) is arranged at the penetration connection position between the extension end (3) and the hollow inner cavity (14), and the movable perforation (15) is arranged to communicate with the inside of the hollow inner cavity (14). The two ends of the return spring (16) are respectively fixedly connected to the hollow inner cavity (14) and the extension end (3) by nail-free glue.

2. A high-protection BGA test probe according to claim 1, characterized in that: The sealing cap (5) is provided with a threaded through hole (6) inside, a connecting screw rod (7) is installed in the threaded through hole (6), an assembly screw hole (21) is provided at the connection position between the connecting screw rod (7) and the protective sleeve (1), and the assembly screw hole (21) and the protective sleeve (1) are an integral structure.

3. A high-protection BGA test probe according to claim 2, characterized in that: A rotating rod (8) is provided at one end of the connecting screw rod (7); the rotating rod (8) and the connecting screw rod (7) are an integral structure; and the sealing cap (5) is fixedly connected to the protective sleeve (1) via the connecting screw rod (7).

4. A high-protection BGA test probe according to claim 1, characterized in that: An extended side strip (13) is provided on the outer wall of the inner needle body (12), the extended side strip (13) and the inner needle body (12) are an integral structure, a guide slot (20) is provided at the connection position between the extended side strip (13) and the protective sleeve (1), the guide slot (20) and the protective sleeve (1) are an integral structure.

5. A high-protection BGA test probe according to claim 1, characterized in that: A limiting block (17) is provided on one side outer wall of the extension end (3); the limiting block (17) and the extension end (3) are an integral structure; the extension end (3) is connected to the movable through hole (15) in a limiting manner via the limiting block (17).

6. A high-protection BGA test probe according to claim 1, characterized in that: The other end of the threaded linkage rod (10) is provided with a screw cap (11), and the screw cap (11) and the threaded linkage rod (10) are an integral structure.

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