Dip package ot test socket

Abstract

The utility model provides a kind of DIP package OT test seat, including pin clamping assembly, pin clamping assembly includes base, installation recess, clamping seat, limit slide bar and shell fragment clamping block.The utility model can realize the opening and closing of shell fragment clamping block by the simple action of pressing down and lifting upper cover, create favorable conditions for automatic feeding, overcome the inefficient mode of manual feeding of traditional flip cover test seat, meet the needs of modern large-scale production, significantly improve test efficiency;By adopting the mode that first clamping shell fragment and second clamping shell fragment jointly clamping product pin, cooperate the accurate positioning and stable pushing of shell fragment clamping block, ensure that product pin and shell fragment maintain close, stable contact during testing process, effectively overcome the unstable contact problem caused by small clamping force of traditional shell fragment itself, can meet the strict requirements of large current test on electrical connection stability, improve the accuracy and reliability of test result.

Description

Technical Field

[0001] This utility model relates to the field of electronic testing technology, and in particular to a DIP packaged OT test socket. Background Technology

[0002] With the rapid development of electronic technology, integrated circuits have been widely used in various electronic products. DIP-packaged chips, as a common form of integrated circuit packaging, occupy an important position in the field of electronic equipment manufacturing due to their excellent electrical and mechanical properties. In the production process of electronic products, efficient and accurate testing of DIP-packaged chips is a key step in ensuring product quality.

[0003] Existing test sockets for flip-top products mostly use manual feeding, which is inefficient and difficult to adapt to the needs of modern large-scale automated production, and cannot achieve an efficient automated feeding process. On the other hand, test sockets for top-window (OT) products that rely solely on the clamping force of the spring itself to hold the product pins have a relatively small clamping force, which is prone to unstable contact during testing. This makes it difficult to meet the requirements of stable electrical connection for high-current testing, thus affecting the accuracy and reliability of test results. Therefore, a DIP packaged OT test socket is proposed. Utility Model Content

[0004] In view of this, the present invention aims to provide a DIP packaged OT test socket to solve or alleviate the technical problems existing in the prior art, or at least provide a beneficial alternative.

[0005] The technical solution of this utility model embodiment is implemented as follows: A DIP packaged OT test socket includes a pin clamping assembly, which includes a base, a mounting groove, a clamping seat, a limiting slide bar, a limiting slide hole, a first spring, a second spring, a top cover, an inverted trapezoidal block, a clamping groove, and a spring clip clamping block.

[0006] A mounting groove is formed in the middle of the upper surface of the base. Clamping seats are slidably connected to both sides of the inner wall of the mounting groove. Limiting slide rods are fixedly connected to the front and rear parts of the inner wall of the mounting groove. Limiting slide holes are formed on the front and rear parts of one side of each clamping seat. The inner wall of each limiting slide hole is slidably connected to the outer wall of the limiting slide rod. First springs are sleeved on both sides of the outer wall of the limiting slide rod. The two ends of the first springs that are far apart are respectively attached to the outer sides of the inner wall of the mounting groove near the limiting slide rod. The two first springs are respectively attached to the outer side of the two clamping seats near the limiting slide rod on the opposite side. The upper surface of the base is fixedly connected to the upper cover at the four corners by the second spring. The lower surface of the upper cover is provided with inverted trapezoidal blocks at the front and rear. The two sides of the inverted trapezoidal blocks are respectively slidably connected to the opposite side of the two clamping seats. The middle of the opposite side of the two clamping seats is provided with clamping grooves. Multiple spring clip clamping blocks are fixedly connected to the opposite side of the inner wall of the two clamping grooves.

[0007] More preferably, the inner bottom wall of the mounting groove is provided with a mounting hole, and a connecting seat is installed on the inner side wall of the mounting hole. Multiple spring pins are passed through both sides of the upper surface of the connecting seat. A product test seat is fixedly connected to the upper surface of the connecting seat by screws. Multiple pin slots are provided on both sides of the product test seat. A first clamping spring and a second clamping spring are respectively provided on the top two sides of the spring pin. The first clamping spring and the second clamping spring are both located inside the pin slot. The first clamping spring and the spring clamping block are attached to each other on their adjacent sides. The side of the second clamping spring away from the first clamping spring is attached to the inner side wall of the pin slot away from the spring clamping block.

[0008] More preferably, the upper surface of the base has limit holes on both the front and rear sides, and the upper cover has limit blocks fixedly connected to both the front and rear sides, with the outer sidewall of the limit block slidably connected to the inner sidewall of the limit hole.

[0009] More preferably, the upper part of both sides of the inner wall of the limiting hole is fixedly connected to a limiting rod, and a strip-shaped limiting groove is opened on one side of the limiting block. The inner wall of the strip-shaped limiting groove is slidably connected to the outer wall of the limiting rod.

[0010] More preferably, a third spring is fixedly connected to the center of the opposite side of each of the two clamping seats, and the opposite ends of the two third springs are respectively fixedly connected to the center of the inner sidewall of the mounting groove.

[0011] More preferably, the upper surface of the product test holder is provided with a test groove, the inner sidewall of the test groove is fitted with the product to be tested, and multiple product pins are provided on both sides of the product to be tested. The two sides of the product pins are respectively fitted with the adjacent side of the first clamping spring and the second clamping spring.

[0012] More preferably, the lower surface of the connector is fixedly connected with positioning pins at both the front and rear.

[0013] More preferably, threaded holes are provided at all four corners of the lower surface of the base, and mounting screws are connected to the internal threads of the threaded holes.

[0014] The present invention has the following advantages due to the adoption of the above technical solution:

[0015] This utility model

[0016] 1. This utility model can realize the opening and closing of the spring clip holding block through the simple action of pressing down and lifting the top cover, which creates favorable conditions for automated feeding, overcomes the low efficiency of manual feeding in the traditional flip-top test seat, meets the needs of modern large-scale production, and significantly improves testing efficiency.

[0017] 2. This utility model uses a first clamping spring and a second clamping spring to clamp the product pins together. With the precise positioning and stable pushing of the spring clamping block, it ensures that the product pins and the springs always maintain a tight and stable contact during the test. This effectively overcomes the problem of unstable contact caused by the small clamping force of the springs themselves in traditional tests. It can meet the strict requirements of high current testing for electrical connection stability and improve the accuracy and reliability of test results.

[0018] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present invention will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a structural view of the present invention.

[0021] Figure 2This is another structural view of the present invention;

[0022] Figure 3 This is a cross-sectional view of the overall structure of this utility model;

[0023] Figure 4 This is a structural diagram of the base and clamping seat of this utility model;

[0024] Figure 5 This is a structural diagram of the connector and product test socket of this utility model.

[0025] Reference numerals: 1. Pin clamping assembly; 11. Base; 12. Mounting groove; 13. Clamping seat; 14. Limiting slide bar; 15. Limiting slide hole; 16. First spring; 17. Second spring; 18. Top cover; 19. Inverted trapezoidal block; 20. Clamping groove; 21. Spring clip clamping block; 22. Mounting hole; 23. Connecting seat; 24. Spring clip pin; 25. Screw; 26. Product test seat; 27. Pin slot; 28. First clamping spring clip; 29. ​​Second clamping spring clip; 30. Limiting insertion hole; 31. Limiting insertion block; 32. Limiting rod; 33. Strip-shaped limiting groove; 34. Third spring; 35. Test groove; 36. Product under test; 37. Product pin; 38. Positioning pin; 39. Threaded hole; 40. Mounting screw. Detailed Implementation

[0026] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this invention. Therefore, the drawings and description are considered exemplary in nature and not restrictive.

[0027] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0028] like Figures 1-5 As shown, this utility model embodiment provides a DIP package OT test socket, including a pin clamping assembly 1. The pin clamping assembly 1 includes a base 11, a mounting groove 12, a clamping seat 13, a limiting slide bar 14, a limiting slide hole 15, a first spring 16, a second spring 17, a top cover 18, an inverted trapezoidal block 19, a clamping groove 20, and a spring clip clamping block 21.

[0029] A mounting groove 12 is provided in the middle of the upper surface of the base 11. Clamping seats 13 are slidably connected to both sides of the inner wall of the mounting groove 12. Limiting slide rods 14 are fixedly connected to the front and rear parts of the inner wall of the mounting groove 12. Limiting slide holes 15 are provided on the front and rear parts of one side of each clamping seat 13. The inner wall of the limiting slide hole 15 is slidably connected to the outer wall of the limiting slide rod 14. First springs 16 are sleeved on both sides of the outer wall of the limiting slide rod 14. The ends of the two first springs 16 that are far apart are respectively attached to the outer sides of the inner wall of the mounting groove 12 near the limiting slide rod 14. The ends of the two first springs 16 that are close together are respectively attached to the outer sides of the inner wall of the mounting groove 12 near the limiting slide rod 14. The upper surface of the base 11 is fixedly connected to the four corners of the upper surface of the base 11 by the second spring 17 via the outer side of the far side of the two clamping seats 13 near the limiting slide rod 14. The lower surface of the upper cover 18 is provided with inverted trapezoidal blocks 19 at the front and rear. The two sides of the inverted trapezoidal blocks 19 are slidably connected to the near side of the two clamping seats 13 respectively. The middle of the near side of the two clamping seats 13 is provided with clamping grooves 20. The inner sidewalls of the two clamping grooves 20 are fixedly connected to the far side of the two clamping grooves 20. The clamping blocks 21 slide along the limiting slide rod 14 through the limiting slide hole 15 on the clamping seat 13, thereby increasing the stability of the movement of the clamping seat 13.

[0030] In one embodiment, specifically: a mounting hole 22 is provided on the inner bottom wall of the mounting groove 12, a connecting seat 23 is installed on the inner side wall of the mounting hole 22, multiple spring pins 24 penetrate through both sides of the upper surface of the connecting seat 23, a product test seat 26 is fixedly connected to the upper surface of the connecting seat 23 by screws 25, multiple pin slots 27 are provided on both sides of the product test seat 26, and a first clamping spring 28 and a second clamping spring 29 are respectively provided on the top two sides of the spring pins 24. Both are located inside the pin slot 27. The first clamping spring 28 and the spring clamping block 21 are attached to each other on their adjacent sides. The side of the second clamping spring 29 away from the first clamping spring 28 is attached to the inner side wall of the pin slot 27 away from the spring clamping block 21. The pin slot 27 limits the first clamping spring 28 and the second clamping spring 29, thereby preventing the first clamping spring 28 and the second clamping spring 29 from shifting, so that the first clamping spring 28 and the second clamping spring 29 can accurately clamp the product pin 37.

[0031] In one embodiment, specifically: the upper surface of the base 11 has limit holes 30 on both the front and rear sides, and the upper cover 18 has limit blocks 31 fixedly connected to both the front and rear sides. The outer side wall of the limit block 31 is slidably connected to the inner side wall of the limit hole 30. By sliding the limit block 31 on the upper cover 18 inside the limit hole 30, the stability of the upper cover 18 moving up and down is increased.

[0032] In one embodiment, specifically: a limiting rod 32 is fixedly connected to the upper part of both sides of the inner sidewall of the limiting hole 30, and a strip-shaped limiting groove 33 is provided on one side of the limiting block 31. The inner sidewall of the strip-shaped limiting groove 33 is slidably connected to the outer sidewall of the limiting rod 32. By sliding along the limiting rod 32 through the strip-shaped limiting groove 33 on the limiting block 31, the limiting block 31 is limited, preventing the limiting block 31 from slipping out of the limiting hole 30.

[0033] In one embodiment, specifically: a third spring 34 is fixedly connected to the center of the opposite side of each of the two clamping seats 13, and the opposite ends of the two third springs 34 are respectively fixedly connected to the center of the inner sidewall of the mounting groove 12. The rebound force of the third springs 34 facilitates the reset of the clamping seats 13.

[0034] In one embodiment, specifically: a test groove 35 is provided on the upper surface of the product test holder 26, and the product to be tested 36 is attached to the inner side wall of the test groove 35. Multiple product pins 37 are provided on both sides of the product to be tested 36. The two sides of the product pins 37 are respectively attached to the adjacent side of the first clamping spring 28 and the second clamping spring 29. By inserting the product pins 37 between the first clamping spring 28 and the second clamping spring 29, it is convenient to clamp the product pins 37.

[0035] In one embodiment, specifically: the lower surface of the connector 23 is fixedly connected with positioning pins 38 at both the front and rear. By inserting the positioning pins 38 into the corresponding positioning holes, the accuracy of the test seat installation position is ensured.

[0036] In one embodiment, specifically: threaded holes 39 are provided at the four corners of the lower surface of the base 11, and mounting screws 40 are connected to the internal threads of the threaded holes 39, so that the base 11 can be installed and fixed by means of the mounting screws 40.

[0037] In operation, this invention works as follows: First, using the threaded holes 39 at the four corners of the lower surface of the base 11 and the mounting screws 40, the entire test seat is securely installed in the designated position of the testing equipment. Simultaneously, the positioning pins 38 on the lower surface of the connecting seat 23 can be inserted into the corresponding positioning holes, further ensuring the accuracy of the test seat's installation position and laying the foundation for subsequent precise testing. When the upper cover 18 is pressed down, the second spring 17 contracts under pressure, and the upper cover 18 moves smoothly downwards along the guide structure formed by the limiting insert 31 and the limiting insert hole 30. The inverted trapezoidal block 19 on the lower surface of the upper cover 18 descends along with the upper cover 18. Due to the special shape of the inverted trapezoidal block 19, during its descent, it pushes the two clamping seats 13 away from each other. As the clamping seat 13 slides, the limiting sliding hole 15 on one side slides along the limiting sliding rod 14, ensuring the smoothness of the movement of the clamping seat 13. During this process, the clamping seat 13 compresses the first spring 16 and the third spring 34, putting them in a compressed state. As the clamping seat 13 moves outward, the spring clip holding block 21 on the inner side of the clamping seat 13 also moves outward. The spring clip holding block 21 no longer applies inward pressure to the first clamping spring clip 28, and the first clamping spring clip 28 and the second clamping spring clip 29 separate, making enough insertion space in the pin slot 27 for placing the product pin 37 of the product under test 36. Through automated equipment or manual operation, the product under test 36 is accurately placed in the product testing area. Within the test slot 35 of seat 26, the product pins 37 on both sides of the product under test 36 are precisely aligned with the pin slot 27, and the product pins 37 are inserted between the first clamping spring 28 and the second clamping spring 29 in the pin slot 27. After the product pins 37 are inserted into place, the pressure on the upper cover 18 is released. At this time, under the elastic force of the second spring 17, the upper cover 18 rises upward. As the upper cover 18 rises, the pushing force of the inverted trapezoidal block 19 on the clamping seat 13 disappears. Under the elastic force of the compressed first spring 16 and the third spring 34, the two clamping seats 13 slide inward, and the spring clamping block 21 on the inner side of the clamping seat 13 moves inward accordingly, reapplying pressure to the first clamping spring 28, so that the first clamping spring 28... The first clamping spring 28 and the second clamping spring 29 firmly clamp the product pin 37, achieving a stable clamping of the product pin 37 and establishing a stable electrical connection. At this point, the test socket has completed the fixation of the product under test 36, and various performance tests can be performed, such as electrical performance and functional tests, to ensure that the quality of the DIP packaged chip meets the standards. After the test is completed, the top cover 18 is pressed down again, and the action of opening the test socket is repeated, so that the first clamping spring 28 and the second clamping spring 29 release the product pin 37. Then, the tested product under test 36 is removed from the test slot 35 by automated equipment or manual means, completing a complete test process and preparing for the next DIP packaged chip test.

[0038] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this utility model, and these should all be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A DIP-packaged OT test socket, characterized in that: The pin clamping assembly (1) includes a base (11), a mounting groove (12), a clamping seat (13), a limiting slide bar (14), a limiting slide hole (15), a first spring (16), a second spring (17), a top cover (18), an inverted trapezoidal block (19), a clamping groove (20), and a spring clip clamping block (21). A mounting groove (12) is provided in the middle of the upper surface of the base (11). A clamping seat (13) is slidably connected to both sides of the inner wall of the mounting groove (12). A limiting slide rod (14) is fixedly connected to the front and rear parts of the inner wall of the mounting groove (12). A limiting slide hole (15) is provided on the front and rear parts of one side of the clamping seat (13). The inner wall of the limiting slide hole (15) is slidably connected to the outer wall of the limiting slide rod (14). A first spring (16) is sleeved on both sides of the outer wall of the limiting slide rod (14). The two ends of the first springs (16) that are far apart are respectively attached to the inner walls of the mounting groove (12) near the limiting slide rod (14). On the outside, the two first springs (16) are respectively attached to the two clamping seats (13) on the opposite side near the outside of the limiting slide rod (14). The upper surface of the base (11) is fixedly connected to the upper cover (18) by the second spring (17) at the four corners. The lower surface of the upper cover (18) is provided with inverted trapezoidal blocks (19) at the front and rear. The two sides of the inverted trapezoidal blocks (19) are respectively slidably connected to the two clamping seats (13) on the opposite side. The two clamping seats (13) are provided with clamping grooves (20) in the middle of the opposite side. The inner sidewalls of the two clamping grooves (20) are fixedly connected with multiple spring clip clamping blocks (21) on the opposite side.

2. The DIP packaged OT test socket according to claim 1, characterized in that: The inner bottom wall of the mounting groove (12) is provided with a mounting hole (22). A connecting seat (23) is installed on the inner side wall of the mounting hole (22). Multiple spring pins (24) are passed through both sides of the upper surface of the connecting seat (23). A product test seat (26) is fixedly connected to the upper surface of the connecting seat (23) by screws (25). Multiple pin slots (27) are provided on both sides of the product test seat (26). The top two spring pins (24) are provided with multiple spring pin slots (27). A first clamping spring (28) and a second clamping spring (29) are respectively provided on the side. The first clamping spring (28) and the second clamping spring (29) are both located inside the pin slot (27). The first clamping spring (28) and the spring clamping block (21) are attached to each other on the side that are close to each other. The side of the second clamping spring (29) away from the first clamping spring (28) is attached to the inner side wall of the pin slot (27) away from the spring clamping block (21).

3. The DIP packaged OT test socket according to claim 1, characterized in that: The upper surface of the base (11) has limit holes (30) on both the front and rear sides. The upper cover (18) has limit blocks (31) fixedly connected to both the front and rear sides. The outer side wall of the limit block (31) is slidably connected to the inner side wall of the limit hole (30).

4. A DIP-packaged OT test socket according to claim 3, characterized in that: Limiting rods (32) are fixedly connected to the upper part of both sides of the inner sidewall of the limiting hole (30). A strip-shaped limiting groove (33) is provided on one side of the limiting block (31). The inner sidewall of the strip-shaped limiting groove (33) is slidably connected to the outer sidewall of the limiting rod (32).

5. A DIP-packaged OT test socket according to claim 1, characterized in that: A third spring (34) is fixedly connected to the center of the two opposite sides of the clamping seats (13), and the opposite ends of the two third springs (34) are respectively fixedly connected to the center of the inner sidewall of the mounting groove (12).

6. A DIP-packaged OT test socket according to claim 2, characterized in that: The upper surface of the product test holder (26) is provided with a test groove (35). The inner side wall of the test groove (35) is attached to the product to be tested (36). Both sides of the product to be tested (36) are provided with multiple product pins (37). The two sides of the product pins (37) are respectively attached to the adjacent side of the first clamping spring (28) and the second clamping spring (29).

7. A DIP-packaged OT test socket according to claim 2, characterized in that: The lower surface of the connecting seat (23) is fixedly connected with positioning pins (38) at both the front and rear.

8. A DIP-packaged OT test socket according to claim 1, characterized in that: The base (11) has threaded holes (39) at the four corners of its lower surface, and the internal threads of the threaded holes (39) are connected to mounting screws (40).

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