Probe for flexible circuit board test fixture
By designing a probe for testing fixtures for flexible circuit boards, the problem of inconvenience in testing flexible circuit boards is solved, and the effect of accurate testing and long life is achieved.
Patent Information
- Application Number
- CN202421378014.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-17
- Publication Date
- 2025-05-16
- Estimated Expiration
- 2034-06-17
AI Technical Summary
Due to its inconvenient softness testing, existing test fixtures are difficult to achieve accurate testing without damaging the circuit board.
A probe for flexible circuit board test fixture was designed. The probe assembly includes a piston, push rod and copper ring. The conical head of the piston is a Teflon bottom, which has the characteristics of high temperature resistance and insulation protection. It presses the circuit board without rotation and offset through precise downforce.
Accurate testing of flexible circuit boards is achieved to avoid damage to circuit boards, accurate downforce, uniform stress, long service life, can be repeated multiple times, and has high flexibility.
Smart Images
Figure CN222882744U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of circuit board testing, in particular to a probe for a flexible circuit board testing fixture. Background Art
[0002] The probe is a test needle used to test PCBA. It has a gold-plated surface and a high-performance spring with an average life of 30,000 to 100,000 times. The flexible circuit board, also known as the "soft board", is a printed circuit made of a flexible insulating substrate. At the same time, the flexible circuit provides excellent electrical properties, which can meet the design needs of smaller and higher density installations, and also help reduce assembly processes and enhance reliability.
[0003] Flexible circuit boards are the only solution to meet the requirements of miniaturization and mobility of electronic products. They can be bent, rolled, and folded freely, and can withstand millions of dynamic bendings without damaging the wires. They can be arranged arbitrarily according to spatial layout requirements and can be moved and stretched arbitrarily in three-dimensional space, thereby achieving the integration of component assembly and wire connection. Flexible circuit boards can greatly reduce the size and weight of electronic products, and are suitable for the development of electronic products towards high density, miniaturization, and high reliability.
[0004] When testing flexible circuit boards, they are relatively soft, inconvenient to test, and have high requirements for fixtures. In order to achieve accurate testing without damaging the circuit boards, we have proposed probes for flexible circuit board test fixtures. Utility Model Content
[0005] The utility model aims to provide a probe for a flexible circuit board test fixture to solve the problem raised in the above background technology that when testing a flexible circuit board, the flexible circuit board itself is relatively soft, the test is inconvenient, and the requirements for the fixture are high, in order to achieve accurate testing without damaging the circuit board. To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a probe for a flexible circuit board test fixture, comprising a framework body, a test probe assembly is arranged inside the framework body, the test probe assembly comprises a shell, the shell is movably connected to the inside of the framework body, a fixed column is movably connected inside the shell, a push rod is fixedly connected inside the fixed column, a piston is fixedly connected inside the fixed column, a copper ring is sleeved on the other end of the push rod away from the fixed column, and barbs are provided on the side surface of the shell. When using the probe for the flexible circuit board test fixture, the piston is pressed against the circuit board through the test probe assembly, and the conical head of the piston is a Teflon bottom. The Teflon bottom has the characteristics of being resistant to high temperature, non-conductive, insulating and protecting, and not damaging the circuit board. At the same time, the downward pressure is accurate, the force is uniform, there is no rotation and deviation, the service life is long, and it can be used repeatedly.
[0006] Further preferably, slide grooves are respectively provided on both sides of the structural body, and the slide grooves are symmetrically distributed on both sides of the structural body. A connecting slide is movably connected inside the slide groove, and the other end of the connecting slide passes through the protective inner shell and is connected to the outer shell. The push rod passes through a section of the outer shell and is socketed with a copper ring.
[0007] Further preferably, a spring is fixedly connected to the bottom end of the connecting slide plate and the other end of the spring is fixedly connected to the bottom inner wall of the slide groove.
[0008] Further preferably, a protective inner shell is fixedly connected to the interior of the structural body, and four support blocks are fixedly connected to the bottom of the structural body, and the four support blocks are symmetrically distributed at the bottom of the structural body.
[0009] Further preferably, the top of the protective inner shell is fixedly connected to a fixed through-tube, the interior of the fixed through-tube is movably connected to a push rod, the side surface of the push rod is sleeved with a tension spring, one end of the push rod is fixedly connected to a push plate and the push plate is located inside the fixed through-tube.
[0010] Further preferably, the push plate is connected to the piston, one end of the tension spring is fixedly connected to the top inner wall of the fixed through tube and the other end of the tension spring is fixedly connected to one side of the push plate, and the piston is conical. When using the probe for the flexible circuit board test fixture, it is necessary to first flip the test probe assembly over, with the piston facing outward, so that the push rod is connected to the push plate, and the main body of the handheld structure is used to drive the push plate by pressing the push rod, and at the same time the push plate pushes the push rod to push the test probe assembly out. After use, release your fingers, the spring and tension spring rebound, and the device returns to its original position, so that the probe has high flexibility when used.
[0011] Compared with the prior art, the utility model has the following beneficial effects:
[0012] In the utility model, when the probe for the flexible circuit board test fixture is used, the piston is pressed against the circuit board through the test probe assembly, and the conical head of the piston is a Teflon bottom. The Teflon bottom has the characteristics of being resistant to high temperatures, non-conductive, insulating and protecting, and not damaging the circuit board. At the same time, the downward pressure is accurate, the force is uniform, there is no rotation and deviation, the service life is long, and it can be used repeatedly.
[0013] In the utility model, when using the probe of the flexible circuit board test fixture, it is necessary to first turn over the test probe assembly, turn the piston outward, connect the push rod with the push plate, hold the frame body by hand, press the push rod to drive the push plate, and at the same time the push plate pushes the push rod to push the test probe assembly out. After use, release your fingers, the spring and tension spring rebound, and the device returns to its original position, so that the probe has high flexibility when in use. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;
[0015] Figure 2 It is a schematic diagram of a partial explosion structure of the utility model;
[0016] Figure 3 It is a schematic diagram of the cross-sectional three-dimensional structure of the utility model;
[0017] Figure 4 For this utility model Figure 3 The enlarged structural diagram at A in the middle;
[0018] Figure 5 It is a front view three-dimensional structural schematic diagram of the utility model.
[0019] In the figure: 1. main body of the structure; 2. test probe assembly; 3. slide groove; 4. connecting slide plate; 5. spring; 6. protective inner shell; 7. support block; 8. fixed through pipe; 9. push rod; 10. tension spring; 11. push plate; 201. outer shell; 202. fixed column; 203. push rod; 204. piston; 205. copper ring; 206. barb. DETAILED DESCRIPTION
[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technical personnel in this field without creative work are within the scope of protection of the utility model.
[0021] See also Figure 1-Figure 5 The utility model provides a technical solution: a probe for a flexible circuit board test fixture, including a framework body 1, a test probe assembly 2 is arranged inside the framework body 1, the test probe assembly 2 includes a shell 201, the shell 201 is movably connected to the inside of the framework body 1, a fixed column 202 is movably connected inside the shell 201, a push rod 203 is fixedly connected inside the fixed column 202, a piston 204 is fixedly connected inside the fixed column 202, a copper ring 205 is sleeved on the other end of the push rod 203 away from the fixed column 202, and a barb 206 is provided on the side surface of the shell 201. When the test probe assembly 2 is used, the piston 204 is pressed against the circuit board and the conical head of the piston 204 is a Teflon bottom. The Teflon bottom has the characteristics of high temperature resistance, non-conductivity, insulation protection, and no damage to the circuit board. At the same time, the downward pressure is accurate, the force is uniform, there is no rotation and deviation, the service life is long, and it can be used repeatedly.
[0022] In this embodiment, Figure 1 and Figure 3As shown, slide grooves 3 are respectively provided on both sides of the framework body 1, and the slide grooves 3 are symmetrically distributed on both sides of the framework body 1. A connecting slide plate 4 is movably connected inside the slide groove 3. The other end of the connecting slide plate 4 passes through the protective inner shell 6 and is connected to the outer shell 201. The push rod 203 passes through a section of the outer shell 201 and is sleeved with the copper ring 205.
[0023] In this embodiment, Figure 1 and Figure 3 As shown, the bottom end of the connecting slide plate 4 is fixedly connected with a spring 5 and the other end of the spring 5 is fixedly connected to the bottom inner wall of the slide groove 3. When using the probe of the flexible circuit board test fixture, it is necessary to first flip the test probe assembly 2, turn the piston 204 outward, connect the push rod 203 with the push plate 11, and hold the frame body 1 by holding the push rod 9 to drive the push plate 11. At the same time, the push plate 11 pushes the push rod 203 to push the test probe assembly 2 out.
[0024] In this embodiment, Figure 1 and Figure 3 As shown, a protective inner shell 6 is fixedly connected to the interior of the structural body 1 , and four support blocks 7 are fixedly connected to the bottom of the structural body 1 , and the four support blocks 7 are symmetrically distributed at the bottom of the structural body 1 .
[0025] In this embodiment, Figure 1 and Figure 3 As shown, the top of the protective inner shell 6 is fixedly connected to a fixed through-tube 8, the interior of the fixed through-tube 8 is movably connected to a push rod 9, the side surface of the push rod 9 is sleeved with a tension spring 10, one end of the push rod 9 is fixedly connected to a push plate 11 and the push plate 11 is located inside the fixed through-tube 8.
[0026] In this embodiment, Figure 1 and Figure 3 As shown, the push plate 11 is connected to the piston 204, one end of the tension spring 10 is fixedly connected to the top inner wall of the fixed through pipe 8 and the other end of the tension spring 10 is fixedly connected to one side of the push plate 11, and the piston 204 is conical. After use, release your fingers, the spring 5 and the tension spring 10 rebound, and the device returns to its original position.
[0027] The use method and advantages of the utility model: When the probe for the flexible circuit board test fixture is used, the working process is as follows:
[0028] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, when using the probe of the flexible circuit board test fixture, it is necessary to first flip the test probe assembly 2, turn the piston 204 outward, connect the push rod 203 with the push plate 11, and hold the frame body 1 by pressing the push rod 9 to drive the push plate 11. At the same time, the push plate 11 pushes the push rod 203 to push the test probe assembly 2 out. When using the test probe assembly 2, the piston 204 presses the circuit board and the conical head of the piston 204 is a Teflon bottom. The Teflon bottom has the characteristics of high temperature resistance, non-conductivity, insulation protection, and no damage to the circuit board. At the same time, the downward pressure is accurate, the force is uniform, there is no rotation and deviation, the service life is long, and it can be used repeatedly. After use, release your fingers, the spring 5 and the tension spring 10 rebound, and the device returns to its original position.
[0029] The above shows and describes the basic principle, main features and advantages of the utility model. Technical staff in this industry should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.
Claims
1. A probe for a flexible circuit board test fixture, comprising a framework body (1), characterized in that: A test probe assembly (2) is arranged inside the framework body (1), and the test probe assembly (2) comprises a shell (201), the shell (201) is movably connected to the inside of the framework body (1), a fixed column (202) is movably connected inside the shell (201), a push rod (203) is fixedly connected inside the fixed column (202), a piston (204) is fixedly connected inside the fixed column (202), a copper ring (205) is sleeved on the other end of the push rod (203) away from the fixed column (202), and a barb (206) is provided on the side surface of the shell (201).
2. The probe for a flexible circuit board test fixture according to claim 1, characterized in that: The two sides of the framework body (1) are respectively provided with slide grooves (3), and the slide grooves (3) are symmetrically distributed on the two sides of the framework body (1). The interior of the slide groove (3) is movably connected with a connecting slide plate (4), and the other end of the connecting slide plate (4) passes through the protective inner shell (6) and is connected to the outer shell (201), and the push rod (203) passes through a section of the outer shell (201) and is sleeved with the copper ring (205).
3. The probe for a flexible circuit board test fixture according to claim 2, characterized in that: The bottom end of the connecting slide plate (4) is fixedly connected to a spring (5), and the other end of the spring (5) is fixedly connected to the bottom inner wall of the slide groove (3).
4. The probe for a flexible circuit board test fixture according to claim 3, characterized in that: A protective inner shell (6) is fixedly connected to the interior of the structural body (1), and four support blocks (7) are fixedly connected to the bottom of the structural body (1), and the four support blocks (7) are symmetrically distributed at the bottom of the structural body (1).
5. The probe for a flexible circuit board test fixture according to claim 4, characterized in that: The top of the protective inner shell (6) is fixedly connected to a fixed through-tube (8), the interior of the fixed through-tube (8) is movably connected to a push rod (9), the side surface of the push rod (9) is sleeved with a tension spring (10), one end of the push rod (9) is fixedly connected to a push plate (11), and the push plate (11) is located inside the fixed through-tube (8).
6. The probe for a flexible circuit board test fixture according to claim 5, characterized in that: The push plate (11) is connected to the piston (204), one end of the tension spring (10) is fixedly connected to the top inner wall of the fixed through pipe (8) and the other end of the tension spring (10) is fixedly connected to one side of the push plate (11), and the piston (204) is conical.