Terminal anti-oscillation test seat

Abstract

The utility model discloses a terminal anti -swing test seat, including upper insulating seat, lower insulating seat and conductive terminal structure, the upper end surface of lower insulating seat is provided with the accommodation groove, the conductive terminal structure includes the action terminal and static terminal of setting in the accommodation groove, the one end of action terminal and static terminal elastic abutment, the lower end of upper insulating seat is provided with the anti -swing structure, and the anti -swing structure is used for action terminal horizontal limit, the bottom of accommodation groove is provided with terminal action groove, in the utility model, through setting the anti -swing structure in the lower end of upper insulating seat, can be in horizontal direction to action terminal horizontal limit, reduce the horizontal deviation of action terminal, thereby reduce the influence of the assembly precision of action terminal to its deformation amount in the test state, avoid action terminal after the probe insertion of test probe and cause the excessive deformation and lead to the original state of being unable to restore.

Description

Technical Field

[0001] This utility model belongs to the field of test sockets, and in particular relates to a terminal anti-slip test socket. Background Technology

[0002] Test sockets are mainly used for testing electrical signals inside circuits such as high-frequency circuit boards. They consist of an insulating base, stationary terminals, and active terminals. During normal circuit operation, the active terminals are in contact with the stationary terminals, and the electrical signal is transmitted normally from the circuit on the active terminal side to the circuit on the stationary terminal side. During testing, a test probe is inserted, causing the probe's probe to contact the active terminal and push it away from the stationary terminal, disconnecting the circuits on both sides of the test socket. The electrical signal is then transmitted from the circuit on the active terminal side through the probe to the testing instrument for signal measurement. With increasing demands for product miniaturization, test sockets need to be lighter and smaller, meaning the size of the active terminals also needs to be smaller. However, due to production cost constraints, the tolerances of the test socket components have not decreased. This results in increasingly larger horizontal misalignments of the active terminals during installation. Using existing test socket structures, in small-sized applications, it is easy for the active terminals to become excessively deformed and unable to return to their original shape, leading to test socket damage and failure. Utility Model Content

[0003] In view of the shortcomings of the prior art, the technical problem to be solved by this utility model is to provide a terminal anti-slip test socket.

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0005] A terminal anti-sway test socket includes an upper insulating base, a lower insulating base, and a conductive terminal structure. The upper insulating base is connected to the lower insulating base. The upper end face of the lower insulating base is provided with a receiving groove. The conductive terminal structure includes an active terminal and a stationary terminal disposed in the receiving groove. One end of the active terminal elastically abuts against the stationary terminal. The lower end of the upper insulating base is provided with an anti-sway structure, which is used to horizontally limit the active terminal. The bottom of the receiving groove is provided with a terminal active groove corresponding to the lower part of the active terminal. The upper insulating base is provided with a probe through hole above the elastic part.

[0006] Furthermore, the upper insulating seat includes a base and a seat body. The shape of the base is adapted to the shape of the receiving groove, and the base extends into the receiving groove to achieve positioning between the upper insulating seat and the lower insulating seat. The anti-sway structure includes two positioning posts disposed on both sides of the base facing the second horizontal direction. A concave notch is formed on each of the corresponding sides of the actuating terminal. The two positioning posts extend into the notches to limit the actuating terminal in the second horizontal direction.

[0007] Furthermore, the stationary terminal includes a first fixing part and an extension part extending from one end of the first fixing part to the top of the terminal action groove. The action terminal includes a second fixing part and an elastic part extending from one end of the second fixing part into the terminal action groove. The width of the second fixing part is greater than the width of the elastic part. One end of the elastic part is provided with an abutment part, which elastically abuts against the extension part of the stationary terminal.

[0008] Furthermore, a first pressing part is provided at the lower end of the upper insulating seat above the first fixing part, and the first pressing part abuts against the first fixing part; a second pressing part is provided at the lower end of the upper insulating seat above the second fixing part, and the second pressing part abuts against the second fixing part.

[0009] Furthermore, the actuation terminal also includes two side wings that extend horizontally from one end of the second fixing part and are respectively located on both sides of the elastic part, with the lower ends of the side wings abutting against the bottom surface of the receiving space.

[0010] Furthermore, a groove is provided in the middle of the abutting part, and a contact part is formed on both sides of the groove, so that the abutting part and the protruding part form a two-point contact through the two contact parts.

[0011] Furthermore, the elastic part is an inclined section that extends obliquely downward into the terminal action groove, and the bottom of the terminal action groove corresponding to the inclined section forms an inclined surface, which forms the action stop surface of the action terminal.

[0012] Furthermore, the elastic portion includes a first bent segment formed by bending downward from one end of the first fixed portion, and a straight segment extending horizontally or obliquely upward from one end of the first bent segment, one end of the straight segment being bent upward to form an abutment portion; the bottom of the terminal action groove corresponding to the straight segment is a planar structure, and the planar structure forms the action stop surface of the action terminal.

[0013] Furthermore, the straight segment extends obliquely upward from one end of the first bent segment, and the angle between the straight segment and the horizontal direction is 1° to 10°, so that when the elastic part is pushed downward by the probe and comes into contact with the planar structure, the straight segment basically coincides with the horizontal direction, so as to provide support for the elastic part and avoid excessive deformation of the elastic part.

[0014] Furthermore, the outer side of the upper insulating seat is covered with a shell, and the lower end face of the lower insulating seat is provided with two opening slots facing each other. The lower end of the shell is provided with two first roll-up structures facing each other. The first roll-up structure includes a first roll-up portion formed by bending horizontally outward from the top of the shell, a second roll-up portion formed by bending downward from one end of the first roll-up portion, and a third roll-up portion formed by bending horizontally inward from one end of the second roll-up portion. The third roll-up portion extends into the opening slot.

[0015] In this invention, two positioning posts are arranged opposite each other at the lower end of the base to form an anti-sway structure, and a concave notch is formed on both sides of the action terminal to cooperate with the positioning posts. This can limit the action terminal in the horizontal direction, reduce the horizontal offset and swing of the action terminal, and greatly reduce the horizontal swing amplitude of the action terminal. It also reduces the influence of the assembly accuracy of the action terminal on its deformation in the test state, and avoids the elastic part from being over-deformed due to the increased movement distance after the probe of the test probe is inserted, which would prevent it from being unable to return to its original shape. Attached Figure Description

[0016] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0017] Figure 1 This is a schematic diagram of an embodiment of a terminal anti-sway test socket according to the present invention.

[0018] Figure 2 An exploded view of an embodiment of a terminal anti-slip test socket.

[0019] Figure 3 for Figure 1 Top view.

[0020] Figure 4 When the stopping surface of the actuating terminal is an inclined plane Figure 3 Sectional view along line AA.

[0021] Figure 5 for Figure 3 BB-direction sectional view.

[0022] Figure 6 This is a schematic diagram after the probe has been inserted.

[0023] Figure 7 When the stopping surface of the actuating terminal is a plane Figure 3 Sectional view along line AA.

[0024] Figure 8 This is a schematic diagram of the structure of the actuating terminal.

[0025] Figure 9 This is a schematic diagram of the upper insulating base.

[0026] Figure 10 This is a schematic diagram of the structure after removing the upper insulating base and the outer shell.

[0027] Figure 11 This is a schematic diagram of the outer shell.

[0028] Figure 12 This is a schematic diagram of the lower insulating base.

[0029] The diagrams in the instruction manual are labeled as follows:

[0030] Upper insulating base - 100; Probe through hole - 101; Base body - 110; Base - 120; First clamping part - 121; Second clamping part - 122; Positioning post - 123;

[0031] Lower insulating base - 200; Receiving groove - 210; Terminal action groove - 220; Planar structure - 221; Bevel - 222; Opening groove - 230;

[0032] Outer shell - 300; First folding structure - 310; First folding part - 311; Second folding part - 312; Third folding part - 313;

[0033] Stationary terminal - 400; First fixing part - 410; Protruding part - 420; Second flipping structure - 430;

[0034] Action terminal-500; Second fixing part-510; Notch-511; Elastic part-520; First bending section-521; Straight section-522; Inclined section-523; Abutting part-530; Broken groove-531; Contact part-532; Side wing part-540; Third rolling structure-550; Probe-600. Detailed Implementation

[0035] The following specific examples illustrate the implementation of this utility model. The illustrations provided in the following embodiments are only schematic representations of the basic concept of this utility model. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0036] Please see Figure 1 , Figure 1 This is a schematic diagram of the structure of an embodiment of a terminal anti-slip test socket according to the present invention. This embodiment of the terminal anti-slip test socket includes an upper insulating base 100, a lower insulating base 200, and a conductive terminal structure. Please refer to... Figure 2 , Figure 3 , Figure 4 and Figure 5The upper insulating base 100 is connected to the lower insulating base 200. The upper end face of the lower insulating base 200 is provided with a receiving groove 210. The conductive terminal structure includes an active terminal 500 and a stationary terminal 400 disposed in the receiving groove 210. One end of the active terminal 500 elastically abuts against the stationary terminal 400. The lower end of the upper insulating base 100 is provided with an anti-sway structure, which limits the movement of the active terminal 500. A terminal actuation groove 220 is provided at the bottom of the receiving groove 210 corresponding to the area below the active terminal 500. The terminal actuation groove 220 is generally located in the middle of the receiving groove 210 to allow space for the movement of the active terminal 500. A probe through hole 101 is provided above the elastic part 520 of the upper insulating base 100, and the probe through hole 101 penetrates the upper insulating base 100.

[0037] In this embodiment, the stationary terminal 400 includes a first fixing portion 410 and an extension portion 420 extending from a first end of the first fixing portion 410 to above the terminal actuation groove 220; the actuating terminal 500 includes a second fixing portion 510 and an elastic portion 520 extending from a second end of the second fixing portion 510 into the terminal actuation groove 220. A second rolling structure 430 may also be provided at the first end of the first fixing portion 410, and a third rolling structure 550 may also be provided at the second end of the second fixing portion 510. One end of the elastic portion 520 is provided with an abutment portion 530, which elastically abuts against the extension portion 420 of the stationary terminal 400.

[0038] Please continue reading. Figure 4 The elastic portion 520 is an inclined section 523 that extends obliquely downward into the terminal actuation groove 220, and the bottom of the terminal actuation groove 220 corresponding to the inclined section 523 forms an inclined surface 222. Please refer to [link / reference]. Figure 6 After the test probe (not shown in the figure) is inserted into the test socket, the probe 600 of the test probe will push the action terminal 500 downward; at this time, the inclined surface 222 will become the stop surface of the action terminal 500, thereby supporting the inclined section 523.

[0039] However, during the assembly of the actuating terminal 500, due to the dimensional tolerances of the various components, the actuating terminal 500 and the lower insulating base 200 often misalign in the horizontal direction (e.g., at...). Figure 1 and Figure 3A certain misalignment (in the X-axis direction) will form, resulting in an increased distance between the inclined segment 523 and the inclined surface 222. Because the dimensions of each component of the test holder are very small, the designed distance between the inclined segment 523 and the inclined surface 222 is generally only 0.3mm. Assembly tolerances are limited by existing process conditions and cannot be further reduced. Once a certain horizontal misalignment occurs between the actuating terminal 500 and the lower insulating base 200, the inclined segment 523 may undergo excessive deformation due to the increased movement distance after the probe 600 of the test probe is inserted. This deformation may not return to its original shape after the probe 600 is removed, preventing the actuating terminal 500 and the stationary terminal 400 from making tight contact, leading to test holder failure. Furthermore, the actuating terminal 500 may also... Figure 1 and Figure 3 The lateral sway along the y-axis causes the tilting direction of the inclined segment 523 and the inclined surface 222 to be inconsistent. This prevents the inclined segment 523 and the inclined surface 222 from aligning properly after the probe 600 of the test probe is inserted, and can also cause irreversible deformation of the inclined segment 523. Therefore, this embodiment uses an anti-sway structure to limit the movement of the actuating terminal 500, thereby reducing the misalignment of the actuating terminal 500.

[0040] Furthermore, to prevent the elastic part 520 from undergoing excessive deformation due to increased movement distance during testing, which could prevent it from returning to its original shape, the structure of the elastic part 520 and the terminal actuation groove 220 can be further improved. Please refer to [link / reference]. Figure 7 In another embodiment, the elastic portion 520 includes a first bent segment 521 formed by bending downward from one end of the first fixed portion 410, and a straight segment 522 extending horizontally or obliquely upward from one end of the first bent segment 521. One end of the straight segment 522 is bent upward to form an abutment portion 530. The bottom of the terminal actuation groove 220 corresponding to the elastic portion 520 is a planar structure 221, thereby using the plane as the stopping surface of the actuation terminal 500.

[0041] In this embodiment, the straight segment 522 extends obliquely upward from one end of the first bent segment 521, and the angle between the straight segment 522 and the horizontal direction is 1° to 10°, preferably 3° to 5°. When the elastic part 520 is pushed downward by the probe 600 and comes into contact with the planar structure 221, the straight segment 522 is basically aligned with the horizontal direction, so as to provide support for the elastic part 520 and prevent the elastic part 520 from undergoing excessive deformation. Since the stopping surface of the actuating terminal 500 is a plane, even if there is a horizontal misalignment between the actuating terminal 500 and the lower insulating seat 200, the distance between the bottom of the actuating terminal 500 (i.e., the straight segment 522) and the bottom of the terminal actuating groove 220 (i.e., the planar structure 221) will not change. Therefore, it is possible to avoid excessive deformation of the elastic part 520 due to the increased movement distance after the probe 600 of the test probe is inserted.

[0042] Please see Figure 8 The actuating terminal 500 may further include two side wings 540 extending horizontally from one end of the second fixing portion 510 and located on both sides of the elastic portion 520, with the lower ends of the side wings 540 abutting against the bottom surface of the receiving groove 210. The two side wings 540 can maintain the overall stability of the actuating terminal 500. A groove 531 is provided in the middle of the abutting portion 530, and a contact portion 532 is formed on both sides of the groove 531, so that the abutting portion 530 and the protruding portion 420 form a two-point contact through the two contact portions 532.

[0043] Please see Figure 9 and Figure 10 The upper insulating seat 100 includes a base 120 and a seat body 110. The shape of the base 120 is adapted to the shape of the receiving groove 210, and the base 120 extends into the receiving groove 210 to achieve positioning between the upper insulating seat 100 and the lower insulating seat 200.

[0044] The anti-sway structure includes two positioning posts 123 oppositely arranged at the lower end of the base 120. The two positioning posts 123 are positioned on the base 120 facing the second horizontal direction (i.e., Figure 1 and Figure 3 On both sides of the x-axis direction. The outer contours of the two positioning posts 123 are generally adapted to the shape of the corresponding position of the receiving groove 210 for positioning between the upper insulating seat 100 and the lower insulating seat 200. The gap width between the two positioning posts 123 is adapted to the width of the second fixing part 510 of the actuating terminal 500 for positioning in the first horizontal direction (i.e., Figure 1 and Figure 3 The actuating terminal 500 is limited in the y-axis direction. A concave notch 511 is formed on each side of the second fixing part 510 of the actuating terminal 500. Each of the two positioning posts 123 has a protruding structure extending into the notch 511. The shape of the protruding structure matches the shape of the notch 511, and is used to limit the actuating terminal 500 in the second horizontal direction, reducing the offset of the actuating terminal 500 in the second horizontal direction. Since the second fixing part 510 has a relatively wide width, the limitation by the two notches 511 can also reduce the left and right deflection of the actuating terminal 500 in the first horizontal direction.

[0045] Please continue reading. Figure 9The lower end of the upper insulating base 100 is provided with a first pressing part 121 above the first fixing part 410. The first pressing part 121 abuts against the first fixing part 410 to fix the stationary terminal 400 to the right end of the receiving groove 210. The lower end of the upper insulating base 100 is provided with a second pressing part 122 above the second fixing part 510. The second pressing part 122 abuts against the second fixing part 510 to fix the actuating terminal 500 to the left end of the receiving groove 210.

[0046] Please see Figure 11 and Figure 12 The upper insulating seat 100 is wrapped with a shell 300 and connected to the lower insulating seat 200 through the shell 300. In this embodiment, the lower end face of the lower insulating seat 200 is provided with two opening slots 230 facing each other, and the lower end of the shell 300 is provided with two first roll-up structures 310 facing each other. The first roll-up structure 310 includes a first roll-up portion 311 formed by bending horizontally outward from the shell 300, a second roll-up portion 312 formed by bending downward from one end of the first roll-up portion 311, and a third roll-up portion 313 formed by bending horizontally inward from one end of the second roll-up portion 312. The third roll-up portion 313 extends into the opening slot 230 and abuts against and limits the bottom of the slot 230. The cooperation between the third roll-up portion 313 and the opening slot 230 connects the shell 300 and the upper insulating seat 100 and the lower insulating seat 200 into a whole. The shape of the third roll-up portion 313 is generally adapted to the shape of the opening groove 230, so that the outer shell 300 can be roughly limited by the side wall of the opening groove 230.

[0047] In this embodiment, by forming an anti-sway structure with two positioning posts 123 opposite to each other at the lower end of the base 120, and by forming a concave notch 511 on both sides of the actuating terminal 500 to cooperate with the positioning posts 123, the actuating terminal 500 can be limited in the horizontal direction, reducing the horizontal offset and swing amplitude of the actuating terminal 500, and greatly reducing the horizontal swing amplitude of the actuating terminal 500. This reduces the impact of the assembly accuracy of the actuating terminal 500 on its deformation during testing, and prevents the elastic part 520 from undergoing excessive deformation due to increased movement distance after the probe 600 of the test probe is inserted, thus preventing it from losing its original shape. In addition, by changing the structure of the elastic part 520 and the bottom structure of the terminal actuating groove 220, making the stopping surface of the actuating terminal 500 a plane, the distance between the bottom of the actuating terminal 500 and the bottom of the terminal actuating groove 220 can remain unchanged when horizontal misalignment occurs between the actuating terminal 500 and the lower insulating seat 200, thereby further avoiding the impact of the assembly accuracy of the actuating terminal 500 on its deformation during testing.

[0048] The above embodiments only illustrate preferred implementations of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A terminal anti-slip test fixture, characterized in that: The device includes an upper insulating base, a lower insulating base, and a conductive terminal structure. The upper insulating base is connected to the lower insulating base. The upper end face of the lower insulating base is provided with a receiving groove. The conductive terminal structure includes an active terminal and a stationary terminal disposed in the receiving groove. One end of the active terminal elastically abuts against the stationary terminal. The lower end of the upper insulating base is provided with an anti-sway structure, which is used to horizontally limit the active terminal. The bottom of the receiving groove is provided with a terminal actuation groove corresponding to the lower part of the active terminal. The upper insulating base is provided with a probe through hole above the elastic part.

2. The terminal anti-slip test socket as described in claim 1, characterized in that: The upper insulating seat includes a base and a seat body. The shape of the base is adapted to the shape of the receiving groove, and the base extends into the receiving groove to achieve positioning between the upper insulating seat and the lower insulating seat. The anti-sway structure includes two positioning posts disposed on both sides of the base facing the second horizontal direction. A concave notch is formed on each of the corresponding sides of the actuating terminal. The two positioning posts extend into the notches to limit the actuating terminal in the second horizontal direction.

3. A terminal anti-slip test socket as described in claim 1 or 2, characterized in that: The stationary terminal includes a first fixing part and an extension part extending from one end of the first fixing part to the top of the terminal action groove. The action terminal includes a second fixing part and an elastic part extending from one end of the second fixing part into the terminal action groove. The width of the second fixing part is greater than the width of the elastic part. One end of the elastic part is provided with an abutment part, which elastically abuts against the extension part of the stationary terminal.

4. The terminal anti-slip test socket as described in claim 3, characterized in that: The lower end of the upper insulating base is provided with a first pressing part above the first fixing part, and the first pressing part abuts against the first fixing part; the lower end of the upper insulating base is provided with a second pressing part above the second fixing part, and the second pressing part abuts against the second fixing part.

5. A terminal anti-slip test fixture as described in claim 3, characterized in that: The actuation terminal also includes two side wings that extend horizontally from one end of the second fixing part and are located on both sides of the elastic part, with the lower ends of the side wings abutting the bottom surface of the receiving space.

6. The terminal anti-slip test socket as described in claim 3, characterized in that: A groove is provided in the middle of the abutting part, and a contact part is formed on both sides of the groove, so that the abutting part and the protruding part form a two-point contact through the two contact parts.

7. A terminal anti-slip test fixture as described in claim 3, characterized in that: The elastic part is an inclined section that extends downward into the terminal action groove. The bottom of the terminal action groove below the inclined section forms an inclined surface, and the inclined surface forms the action stop surface of the action terminal.

8. A terminal anti-slip test fixture as described in claim 3, characterized in that: The elastic part includes a first bent section formed by bending downward from one end of the first fixed part, and a straight section extending horizontally or obliquely upward from one end of the first bent section, one end of the straight section being bent upward to form an abutment part. The bottom of the slot below the straight segment corresponding to the terminal action slot is a planar structure, and the planar structure forms the action stop surface of the action terminal.

9. A terminal anti-slip test socket as described in claim 8, characterized in that: The straight segment extends obliquely upward from one end of the first bent segment, and the angle between the straight segment and the horizontal direction is 1° to 10°. When the elastic part is pushed downward by the probe and comes into contact with the planar structure, the straight segment basically coincides with the horizontal direction, so as to provide support for the elastic part and avoid excessive deformation of the elastic part.

10. A terminal anti-slip test fixture as described in claim 1, characterized in that: The upper insulating base is covered with a shell, and the lower end face of the lower insulating base is provided with two opening slots facing each other. The lower end of the shell is provided with two first roll-up structures facing each other. The first roll-up structure includes a first roll-up portion formed by bending horizontally outward from the top of the shell, a second roll-up portion formed by bending downward from one end of the first roll-up portion, and a third roll-up portion formed by bending horizontally inward from one end of the second roll-up portion. The third roll-up portion extends into the opening slot.

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