Probe sleeve and probe with same

Abstract

The utility model discloses a probe sleeve and a probe with the same. The probe sleeve comprises a probe sleeve body and a probe sleeve, wherein the probe sleeve body is provided with a first opening end and a second opening end which are opposite to each other; the clamping piece is configured at the second opening end, the clamping piece is provided with at least two sets of clamping structures which extend towards the interior of the needle sleeve body and are gathered towards the axis, and the at least two sets of clamping structures form a clamping channel with the diameter gradually reduced in the axis direction; by means of the pressure of the clamping structure towards the axis direction, an object expanding the clamping channel is pressed; the utility model can solve the problems that the connection between the traditional probe sleeve and the tested object is unstable, the whole probe cannot be effectively supported, and the test precision of the test probe is influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of semiconductor components, in particular to a needle sleeve and a probe with the same. Background Art

[0002] Probes are high-end, precision electronic hardware components that serve as the contact medium for electrical testing. Traditional test probes primarily consist of a needle, a stem, a sleeve, and an internal spring. During use, the sleeve is directly inserted into the object being tested, and the needle and stem are repeatedly moved to achieve the desired test result. However, the traditional sleeve's connection to the object being tested is unstable, failing to provide effective support for the probe, impacting the probe's accuracy. Utility Model Content

[0003] The utility model aims to solve the above technical problem, that is, the connection between the traditional needle sleeve and the object to be tested is unstable, and cannot form an effective support for the probe as a whole, which affects the test accuracy of the test probe.

[0004] In a first aspect, the present invention provides a needle sleeve comprising:

[0005] a needle guard body having a first open end and a second open end opposite to each other;

[0006] A clamping member is arranged at the second open end, and the clamping member has at least two groups of clamping structures extending toward the interior of the needle sleeve body and converging toward the axis. At least two groups of the clamping structures form a clamping channel with a gradually decreasing diameter in the axial direction. With the help of pressure from the clamping structures in the axial direction, the object that expands the clamping channel is compressed.

[0007] The present application configures a clamping member at the second open end of the needle sleeve body. The clamping structure of the clamping member can apply pressure in the axial direction to the terminal to compress the terminal, so that the needle sleeve body can clamp the terminal of the object to be tested, thereby improving the stability of the needle sleeve body and ensuring the stability of the probe test and the accuracy of the test data.

[0008] In the preferred technical solution of the needle sleeve, the engaging member has three groups of engaging structures.

[0009] In the preferred technical solution of the needle sleeve, the plurality of engaging structures are evenly distributed about the central axis of the engaging member.

[0010] In the preferred technical solution of the needle sleeve, the engaging structure is offset at an angle of 5-10° toward the axial direction on the side away from the second opening end.

[0011] In the preferred technical solution of the needle sleeve, the diameter of the clamping channel at the side away from the second opening end is 0.2-0.3 mm, and the diameter of the clamping channel at the side close to the second opening end is 0.4-0.5 mm.

[0012] In the preferred technical solution of the needle guard, the engaging structure does not contact the cylindrical surface of the needle guard body in a free state.

[0013] In the preferred technical solution of the needle sleeve, the material of the engaging structure is any one of beryllium bronze and metallic iron.

[0014] In the preferred technical solution of the needle sleeve, the engaging member is a claw spring.

[0015] In the preferred technical solution of the needle guard, the engaging member is riveted to the second open end of the needle guard body.

[0016] In a second aspect, the present invention further provides a probe, which includes the above-mentioned needle sleeve.

[0017] The beneficial effect of the present utility model is that, by configuring a clamping piece at the second open end of the needle sleeve body, the clamping structure of the clamping piece can apply pressure in the axial direction to the terminal of the object to be tested to compress the terminal, thereby achieving the clamping of the needle sleeve body on the terminal of the object to be tested, improving the stability of the needle sleeve body being fixed, and ensuring the stability of the probe test and the accuracy of the test data. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a cross-sectional view of the needle sleeve body;

[0019] Figure 2 for Figure 1 A partial enlarged view of the

[0020] Figure 3 is a cross-sectional view of the probe;

[0021] Figure 4 A schematic diagram of the probe entering the needle sleeve body;

[0022] In the figure: needle sleeve body 1, first open end 11, second open end 12, engaging member 2, engaging structure 21, clamping channel 22, probe 3, needle rod 31, needle head 32, spring 33. DETAILED DESCRIPTION

[0023] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0024] It should be noted that in the description of this utility model, terms such as "upper," "lower," "left," "right," "front," and "rear" indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. These are merely for ease of description and do not indicate or imply that the device or component described must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] Furthermore, it should be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "disposed," "connected," and "connected" should be understood in a broad sense, for example, to refer to fixed connections, detachable connections, or integral connections. Those skilled in the art will understand the specific meanings of these terms in this utility model based on specific circumstances.

[0026] Based on the problem pointed out in the background art that the connection between the conventional needle sleeve and the object to be tested is unstable, and it cannot form an effective support for the entire probe 3, thereby affecting the testing accuracy of the probe 3, the utility model provides a needle sleeve, which aims to install a clamping member 2 at the second open end 12 of the needle sleeve body 1. The clamping member 2 can be a claw spring. The clamping member 2 can effectively fix the needle sleeve body 1 by clamping the terminal of the object to be tested, thereby improving the stability of the probe 3 during testing and the accuracy of the test data, thereby improving the use effect of the present application.

[0027] like Figures 1 to 2 As shown, the needle guard of the present invention includes: a needle guard body 1, the needle guard body 1 having a first open end 11 and a second open end 12 opposite to each other; a clamping member 2, the clamping member 2 being disposed at the second open end 12, the clamping member 2 having at least two groups of clamping structures 21 extending toward the interior of the needle guard body 1 and converging toward the axis, the at least two groups of clamping structures 21 forming a clamping channel 22 with a gradually decreasing diameter in the axial direction, and by means of pressure from the clamping structures 21 in the axial direction, an object expanding the clamping channel 22 is compressed.

[0028] See also Figure 1 The needle sleeve body 1 is cylindrical in structure, with the probe 3 having a first open end 11 and a second open end 12 at either end. The first open end 11 allows the probe 3 to enter the needle sleeve body 1, while the second open end 12 is used to receive the engaging member 2. When using the test probe 3, the needle sleeve body 1 is first connected to the probe 3, and then the second open end 12 of the needle sleeve is mounted on the PCB of the object being tested. The engaging member 2 engages the terminals on the PCB, thereby forming a stable connection between the needle sleeve and the PCB, improving the stability of the probe 3 during testing and the accuracy of the test data.

[0029] See also Figure 1 、 Figure 2 The clamping member 2 is arranged on the cylindrical inner wall of the needle sleeve body 1 from the second open end 12 toward the first open end 11. The clamping member 2 has at least two sets of clamping structures 21. When each set of clamping structures 21 extends in the direction from the second open end 12 to the first open end 11, it gradually bends and gathers in the axial direction from the inner wall of the needle sleeve body 1, so that the at least two sets of clamping structures 21 form a simulated cone structure inside the needle sleeve body 1. The at least two sets of clamping structures 21 form a clamping channel 22 with a gradually decreasing diameter in the direction from the second open end 12 to the first open end 11. The clamping channel 22 is used for the terminal of the object to be tested to enter. The diameter of the terminal is larger than the diameter of the clamping channel 22 on the side away from the second open end 12, so that the clamping structure 21 can apply pressure in the axial direction to the terminal to compress the terminal, so that the needle sleeve body 1 is clamped on the terminal of the object to be tested, and the stability of the probe 3 test is ensured.

[0030] It should be noted that when the engaging structure 21 is gradually biased toward the axial direction of the needle sleeve body 1 at the end away from the second open end 12, the engaging structure 21 has a certain elastic margin so that the engaging structure 21 in the free state does not contact the cylindrical inner wall surface of the needle sleeve body 1. When the terminal of the object to be tested enters the clamping channel 22 at the side away from the second open end 12, the clamping structure 21 is expanded and the clamping structure 21 can clamp and fix the terminal.

[0031] In one or more embodiments, the engaging member 2 has three groups of engaging structures 21. In other possible implementations, the engaging structures 21 may be four or five groups, and the specific number of the engaging structures 21 is not limited.

[0032] In one or more embodiments, the plurality of engaging structures 21 are evenly distributed about the central axis of the engaging member 2. This configuration allows the plurality of engaging structures 21 to apply uniform force to the terminal, thereby improving the stability of the needle sleeve body 1 in engaging the terminal of the object to be tested and enhancing the effectiveness of the present application.

[0033] In one or more embodiments, the angle of the engaging structure 21 offset toward the axis on the side away from the second open end 12 is 5-10 degrees. In a specific embodiment, the angle of the engaging structure 21 offset toward the axis on the side away from the second open end 12 is 8 degrees.

[0034] In one or more embodiments, the diameter of the clamping channel 22 on the side away from the second open end 12 is 0.2-0.3 mm, and the diameter of the clamping channel 22 on the side closer to the second open end 12 is 0.4-0.5 mm. In a specific embodiment, the diameter of the clamping channel 22 on the side away from the second open end 12 is 0.25 mm, and the diameter of the clamping channel 22 on the side closer to the second open end 12 is 0.45 mm. In this manner, the clamping channel 22 can have a larger opening on the side closer to the second open end 12 and a smaller opening on the side away from the second open end 12, facilitating the entry of the terminal of the object to be tested while ensuring the clamping effect of the terminal, thereby improving the installation efficiency and use effect of the present application.

[0035] In one or more embodiments, the material of the engaging structure 21 is any one of beryllium bronze and metallic iron.

[0036] In one or more embodiments, the engaging member 2 is a claw spring. In other possible implementations, the engaging member 2 may be a spring.

[0037] In one or more embodiments, the engaging member 2 is riveted to the second open end 12 of the needle guard body 1. In this way, the connection strength between the claw spring and the needle guard body 1 can be improved, thereby increasing the service life of the needle guard body 1.

[0038] In addition, the present invention also provides a probe 3, which has a needle sleeve according to any of the above embodiments. Figure 3 、 Figure 4 The probe 3 has a needle rod 31, a needle head 32 and a spring 33. The needle head 32 is installed in the needle rod 31 through the spring 33. The needle rod 31 can be inserted into the needle sleeve body 1 through the first open end 11 of the needle sleeve body 1.

[0039] The above implementation methods are only for illustrating the technical concept and features of the utility model. Its purpose is to enable people familiar with this technology to understand the content of the utility model and implement it. It cannot be used to limit the scope of protection of the utility model. Any equivalent changes or modifications made according to the spirit of the utility model should be included in the scope of protection of the utility model.

Claims

1. A needle sheath, characterized in that: include: a needle guard body having a first open end and a second open end opposite to each other; A clamping member is arranged at the second open end, and the clamping member has at least two groups of clamping structures extending toward the interior of the needle sleeve body and converging toward the axis. At least two groups of the clamping structures form a clamping channel with a gradually decreasing diameter in the axial direction. With the help of pressure from the clamping structures in the axial direction, the object that expands the clamping channel is compressed.

2. The needle guard according to claim 1, wherein: The engaging member has three groups of engaging structures.

3. The needle guard according to claim 1 or 2, characterized in that: The plurality of engaging structures are evenly distributed along the central axis of the engaging component.

4. The needle guard according to claim 1, wherein: The locking structure is offset at an angle of 5-10° toward the axial direction on a side away from the second opening end.

5. The needle guard according to claim 3, wherein: The diameter of the clamping channel at the side away from the second opening end is 0.2-0.3 mm, and the diameter of the clamping channel at the side close to the second opening end is 0.4-0.5 mm.

6. The needle guard according to claim 1, wherein: The engaging structure does not contact the cylindrical surface of the needle sleeve body in a free state.

7. The needle guard according to claim 1, wherein: The material of the engaging structure is any one of beryllium bronze and metal iron.

8. The needle guard according to claim 1, wherein: The engaging member is a claw spring.

9. The needle guard according to claim 8, characterized in that: The engaging member is riveted on the second open end of the needle sleeve body.

10. A probe, characterized in that: The needle guard comprises the needle guard according to any one of claims 1 to 9.

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