Triode test fixture with triode protection function

By designing transistor test fixtures with threaded column and clamping plate structures, the problem of insufficient pin contact is solved, stable clamping and testing reliability is achieved, and it is suitable for a variety of transistors.

CN223091996UActive Publication Date: 2025-07-11SICHUAN BLUE COLOR ELECTRONICS TECH
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Patent Information

Application Number
CN202421652053.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-12
Publication Date
2025-07-11
Estimated Expiration
2034-07-12

AI Technical Summary

Technical Problem

Due to the small pin diameter of the existing transistor test fixture, the pins are incompletely in contact with the inner wall of the metal groove, which affects the test effect.

Method used

A test fixture with transistor protection function was designed. Through the structure of threaded columns and clamping plates, stable clamping and full contact of the pins were achieved, and contact testing was performed using copper sheets.

Benefits of technology

Ensure that the pins are in full contact with the copper sheet and avoid pin bending. It is suitable for transistor testing of various lengths and diameters to improve testing reliability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a triode test fixture with a triode protection function, which relates to the technical field of triode production and comprises a device body, a first threaded column, a second clamping plate and a top plate. The exteriors of the first threaded columns are in threaded connection with the two ends of first clamping plates, a first handle is welded to one end of the top of each first threaded column, when the device is used, the triode body is fixed through the two first clamping plates, and then a second handle can drive a second threaded column to rotate by rotating the second handle; when the second threaded column rotates, the second clamping plate and the third clamping plate can move towards the pins exposed out of one end of the triode at the same time, so that the second clamping plate and the third clamping plate can clamp the pins, the pins can make full contact with a copper sheet, and bending of the pins during testing can be avoided.
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Description

Technical Field

[0001] The utility model relates to the technical field of triode production, in particular to a triode test fixture with a triode protection function. Background Technique

[0002] When the existing triodes are produced, they need to be tested. Usually, the probe pen is contacted with the pins of the triode. After retrieval, the patent with the Chinese patent authorization publication number CN215768654U discloses a triode test fixture with a triode protection function. Although the pins are protected by the triode pin placement groove and the triode pin protection plate, and the triode pins are extended to a certain extent through the metal groove, when detecting the triode, only the probe pen of the multimeter needs to touch the metal sheet, which prevents the triode from being damaged during the measurement process. However, since the diameter of the triode pins is smaller than that of the triode body, when the pins are placed inside the placement groove, it cannot be ensured that the pins are in full contact with the metal groove, which will affect the test. Content of the Utility Model

[0003] Aiming at the deficiencies of the prior art, the utility model provides a triode test fixture with a triode protection function, which solves the problem that due to the small diameter of the triode pins, gaps will be generated between the pins and the inner wall of the metal groove when the pins are placed, resulting in the pins not being able to fully contact the inner wall of the metal groove and affecting the test as described in the background technique.

[0004] To achieve the above purposes, the utility model is realized through the following technical solutions: A triode test fixture with a triode protection function includes a device main body, a first threaded column, a second clamping plate and a top plate. The two sides of the bottom of the device main body are rotatably connected to the bottom of the first threaded column. The outer part of the first threaded column is threadedly connected to both ends of the first clamping plate. One end of the top of the first threaded column is welded with a first handle. A base is arranged on one side of the device main body. Both ends of the base are rotatably connected to one end of the bottom of the second threaded column. One end of the top of the second threaded column is rotatably connected to the top plate, and the end of the top of the second threaded column is rotatably connected to one end of the second handle. The outer part of the second threaded column is threadedly connected to both ends of the second clamping plate and the third clamping plate. A groove is formed on the surface of the second clamping plate, and a copper sheet is embedded in the groove on the top surface of the second clamping plate.

[0005] Preferably, the threads on the surfaces of the first threaded column and the second threaded column are distributed at the outer parts of one end of the bottom and one end of the top, and the thread directions of one end of the top and one end of the bottom of the first threaded column and the second threaded column are opposite, which is beneficial to the synchronous movement of the two first clamping plates in opposite directions while the first threaded column rotates.

[0006] Preferably, one side of the bottom of the device body is welded to one end of the sliding rod. The sliding rods are distributed at equal intervals, and the other end of the sliding rod is slidably connected to the inside of the base. By sliding the base outside the sliding rod, it is beneficial for one end of the device body to be exposed, thus facilitating the placement of the triode between the two first clamping plates.

[0007] Preferably, one end of the second clamping plate is aligned with one end of the third clamping plate, and the other end of the second clamping plate protrudes from the other end of the third clamping plate, which is beneficial for one end of the copper sheet in full contact with the pin to be exposed, so that the test pen can be in contact with the exposed copper sheet at one end for testing.

[0008] Preferably, a groove is formed at one end of the top plate, and the groove at one end of the top plate is engaged with the clamping strip. The clamping strip is welded to one end of the top of the device body. By engaging the clamping slot at one end of the top plate with the clamping strip, it is beneficial for the top plate to be fixed.

[0009] The utility model provides a triode test fixture with a triode protection function. It has the following beneficial effects:

[0010] (1). For the triode test fixture with a triode protection function, when the device is in use, the triode body is fixed by the two first clamping plates. Then, by rotating the second handle, the second handle can drive the second threaded column to rotate. While the second threaded column rotates, the second clamping plate and the third clamping plate can move simultaneously towards the pins exposed at one end of the triode, so that the second clamping plate and the third clamping plate can clamp the pins, which is beneficial for the pins to be in full contact with the copper sheet and helps to avoid pin bending during testing.

[0011] (2). For the triode test fixture with a triode protection function, grooves for restricting the triode are formed on the surfaces of the two first clamping plates, and both ends of the grooves are open. By placing the triode body between the two first clamping plates to expose the pins at one end, and then rotating the first handle, the first handle can drive the first threaded column to rotate. While the first threaded column rotates, it can drive the two first clamping plates to clamp the triode body, which is beneficial for the device to be applicable to the testing of triodes with various lengths and diameters.

[0012] Thus, it solves the problem that due to the small diameter of the pins of the triode, there will be a gap between the pins and the inner wall of the metal groove during placement, resulting in the pins not being able to be in full contact with the inner wall of the metal groove and affecting the test. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 Schematic diagram of the base structure of the present utility model;

[0015] Figure 3 Top view structure schematic diagram of the present utility model;

[0016] Figure 4 Side view structure schematic diagram of the present utility model;

[0017] Figure 5 Schematic diagram of the structure of the second clamping plate of the present utility model.

[0018] In the figure, 1, device main body; 2, first threaded column; 3, first clamping plate; 4, first handle; 5, base; 6, second clamping plate; 7, third clamping plate; 8, copper sheet; 9, second threaded column; 10, top plate; 11, second handle; 12, clamping strip; 13, sliding rod. Specific implementation manner

[0019] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0020] Embodiment 1:

[0021] A triode test fixture with triode protection function, comprising a device main body 1, a first threaded column 2, a second clamping plate 6 and a top plate 10. The two sides of the bottom of the device main body 1 are rotatably connected to the bottom of the first threaded column 2. The outer part of the first threaded column 2 is threadedly connected to both ends of the first clamping plate 3. One end of the top of the first threaded column 2 is welded with a first handle 4. A base 5 is arranged on one side of the device main body 1. Both ends of the base 5 are rotatably connected to one end of the bottom of the second threaded column 9. One end of the top of the second threaded column 9 is rotatably connected to the top plate 10, and the end of the top of the second threaded column 9 is rotatably connected to one end of the second handle 11. The outer part of the second threaded column 9 is threadedly connected to both ends of the second clamping plate 6 and the third clamping plate 7 respectively. The surface of the second clamping plate 6 is provided with a groove, and a copper sheet 8 is embedded in the groove on the top surface of the second clamping plate 6. One end of the second clamping plate 6 is aligned with one end of the third clamping plate 7, and the other end of the second clamping plate 6 protrudes from the other end of the third clamping plate 7. The triode body is fixed by the two first clamping plates 3, and then by rotating the second handle 11, the second handle 11 can drive the second threaded column 9 to rotate. While the second threaded column 9 rotates, the second clamping plate 6 and the third clamping plate 7 can move simultaneously towards the pins exposed at one end of the triode, so that the second clamping plate 6 and the third clamping plate 7 can clamp the pins, which is beneficial to make the pins fully contact with the copper sheet 8 and avoid pin bending during testing.

[0022] Embodiment 2:

[0023] The threads on the surfaces of the first threaded column 2 and the second threaded column 9 are distributed at the outer parts of one end of the bottom and one end of the top, and the thread directions of one end of the top and one end of the bottom of the first threaded column 2 and the second threaded column 9 are opposite. One side of the bottom of the device main body 1 is welded to one end of the slide bar 13. The slide bars 13 are distributed at equal intervals, and the other end of the slide bar 13 is slidably connected to the inside of the base 5. One end of the top plate 10 is provided with a groove, and the groove at one end of the top plate 10 is engaged with the clamping bar 12. The clamping bar 12 is welded to one end of the top of the device main body 1. The surfaces of the two first clamping plates 3 are provided with grooves for restricting the triode, and both ends of the grooves are open. By placing the triode body between the two first clamping plates 3, the pins at one end are exposed, and then by rotating the first handle 4, the first handle 4 can drive the first threaded column 2 to rotate. While the first threaded column 2 rotates, it can drive the two first clamping plates 3 to clamp the triode body, which is beneficial to make the device applicable to the testing of triodes with various lengths and diameters.

[0024] Working principle: Slide the base 5 outside the sliding rod 13, which is conducive to exposing one end of the device body 1, so as to facilitate placing the triode between the two first clamping plates 3. Place the triode body between the two first clamping plates 3 to expose the pins at one end. Then, by rotating the first handle 4, the first handle 4 can drive the first threaded column 2 to rotate. While the first threaded column 2 rotates, it can drive the two first clamping plates 3 to clamp the triode body. Then, by rotating the second handle 11, the second handle 11 can drive the second threaded column 9 to rotate. While the second threaded column 9 rotates, the second clamping plate 6 and the third clamping plate 7 move simultaneously towards the pins exposed at one end of the triode, so that the second clamping plate 6 and the third clamping plate 7 can clamp the pins, and one end of the copper sheet 8 in full contact with the pins can be exposed. Then, just make the test pen contact the copper sheet 8 exposed at one end.

[0025] The foregoing has shown and described the basic principles, main features and advantages of the present invention. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-described exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, it is intended to embrace all changes falling within the meaning and scope of the equivalent elements of the claims in the present invention. Any reference signs in the claims should not be regarded as limiting the claimed rights.

[0026] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A triode test fixture with triode protection function, characterized in that: It includes a device main body (1), a first threaded column (2), a second clamping plate (6), and a top plate (10). The two sides of the bottom of the device main body (1) are rotatably connected to the bottom of the first threaded column (2). The outer part of the first threaded column (2) is threadedly connected to both ends of the first clamping plate (3). One end of the top of the first threaded column (2) is welded with a first handle (4). A base (5) is arranged on one side of the device main body (1). Both ends of the base (5) are rotatably connected to one end of the bottom of the second threaded column (9). One end of the top of the second threaded column (9) is rotatably connected to the top plate (10), and the end of the top of the second threaded column (9) is rotatably connected to one end of the second handle (11). The outer part of the second threaded column (9) is threadedly connected to both ends of the second clamping plate (6) and the third clamping plate (7). A groove is formed on the surface of the second clamping plate (6), and a copper sheet (8) is embedded in the groove on the top surface of the second clamping plate (6).

2. The triode test fixture with a triode protection function according to claim 1, wherein: The threads on the surfaces of the first threaded column (2) and the second threaded column (9) are distributed on the outer parts of one end of the bottom and one end of the top, and the thread directions of one end of the top and one end of the bottom of the first threaded column (2) and the second threaded column (9) are opposite.

3. The triode test fixture with triode protection function according to claim 1, characterized in that: One end of the bottom of the device main body (1) is welded to one end of a slide bar (13). The slide bars (13) are evenly distributed at equal intervals, and the other ends of the slide bars (13) are slidably connected to the inside of the base (5).

4. The triode test fixture with triode protection function according to claim 1, characterized in that: One end of the second clamping plate (6) is aligned with one end of the third clamping plate (7), and the other end of the second clamping plate (6) protrudes from the other end of the third clamping plate (7).

5. The triode test fixture with triode protection function according to claim 1, characterized in that: A groove is formed at one end of the top plate (10), and the groove at one end of the top plate (10) is engaged with a clamping bar (12). The clamping bar (12) is welded to one end of the top of the device main body (1).

Citation Information

Patent Citations

  • Triode test fixture with triode protection function

    CN215768654U