A clip structure for connecting circuit boards and its optocoupler tester

Abstract

This utility model relates to the field of optocoupler testing technology, and discloses a clamp structure for circuit board connection and its optocoupler testing instrument. It includes a mounting frame with mounting positions; a clamping assembly mounted on the mounting frame, used to clamp and limit the circuit board; the clamping assembly includes a limiting block, a rotating cylinder, rotating wheels, and contact blocks; the rotating wheels are symmetrically arranged with the mounting frame, each rotating wheel is rotatably connected to the mounting frame, and the rotating cylinder is fixedly connected between the symmetrical rotating wheels; the contact blocks are elastically connected to the mounting frame, with both ends of the contact blocks being drively connected to the rotating wheels; the limiting blocks are elastically connected to the inner wall of the mounting frame; by rotating the rotating cylinder, the contact blocks are driven downwards to make tight contact with the end of the circuit board through the mutual cooperation of the internal components of the clamping assembly, quickly completing the detection and limitation of the circuit board; and the connection ends of the circuit board are connected in one step through the contact blocks and connecting blocks, reducing the number of testing steps and improving testing efficiency.

Description

Technical Field

[0001] This utility model belongs to the technical field of optical coupler testing instruments, specifically, it relates to a clip structure for connecting circuit boards and its optical coupler testing instrument. Background Technology

[0002] An optocoupler is a semiconductor device that achieves electrical isolation based on the principle of photoelectric conversion. Its core structure consists of a light-emitting device (such as an infrared LED) and a photosensitive receiver (such as a phototransistor / diode / thyristor), achieving electro-optical-electric signal conversion between the input and output circuits through an internal optical path. Due to its excellent isolation characteristics (typical isolation withstand voltage ≥5kV) and electromagnetic interference immunity, this device has key application value in industrial control, communication equipment, power electronics, and other fields.

[0003] A document with publication number CN218122159U discloses an online handheld semiconductor optocoupler tester, comprising a housing, a battery housed within the housing, a circuit board, and a dedicated clip connected to the circuit board. With the faulty circuit board powered off, the clip is clamped onto the corresponding semiconductor optocoupler pin. After the pulse generator is powered on, it sends continuous square wave pulses to the corresponding semiconductor optocoupler input pins. The LED indicator on the tester housing visually reflects whether the tested semiconductor optocoupler is functioning correctly. If the LED indicator on the tester does not flash, remains constantly lit, or is off, the tested optocoupler is determined to be faulty. The optocoupler tester described in this design has a simple structure, and detection and judgment are displayed by indicator lights.

[0004] This testing device employs a point-to-point contact testing method, requiring manual operation of clamping tools to sequentially connect different test endpoints of the circuit board. This step-by-step testing mode has significant efficiency bottlenecks: each test node requires a separate physical connection, resulting in redundant operations in the testing process; multi-module testing requires repeated execution of the positioning-clamping-testing cycle, leading to frequent manual intervention; and whole-board testing requires accumulating the time consumed by each node, resulting in a longer testing cycle. Especially when handling high-density circuit boards, the inherent defects of traditional contact testing make it difficult for the overall testing efficiency to meet the needs of modern production lines.

[0005] In view of this, this utility model is hereby proposed. Utility Model Content

[0006] To solve the technical problem of circuit board clamping, the basic concept of the technical solution adopted by this utility model is as follows:

[0007] A clamp structure for connecting circuit boards includes a mounting frame with mounting positions; a clamping assembly disposed on the mounting frame and used to clamp and limit the circuit board, the clamping assembly including a limiting block, a rotating cylinder, rotating wheels and contact blocks, the rotating wheels being symmetrically arranged with the mounting frame, each rotating wheel being rotatably connected to the mounting frame, the rotating cylinder being fixedly connected between the symmetrical rotating wheels, the contact blocks being elastically connected to the mounting frame, the two ends of the contact blocks being drively connected to the rotating wheels, and the limiting blocks being elastically connected to the inner wall of the mounting frame.

[0008] In a preferred embodiment of this utility model, the mounting frame is symmetrically provided with first support rods, and each first support rod is fixedly connected to the inner wall of the mounting frame, and the corresponding rotating wheel is rotatably connected to the first support rod.

[0009] In a preferred embodiment of the present invention, a sliding rod is fixedly connected to the bottom end of each first support rod, an abutment block is slidably connected to each sliding rod, a second spring is sleeved on each sliding rod, and the end of each second spring is fixedly connected to the corresponding first support rod and the abutment block.

[0010] In a preferred embodiment of the present invention, each of the rotating wheels is provided with multiple grooves, and the edges of the grooves on the rotating wheels abut against the ends of the abutting blocks.

[0011] In a preferred embodiment of the present invention, each of the abutting blocks has a transmission block abutting at its bottom, and each transmission block is fixedly connected to the end of the contact block.

[0012] In a preferred embodiment of the present invention, the inner wall of the mounting bracket is symmetrically provided with sliding grooves, the limiting block is slidably connected to the sliding groove, and a first spring is provided between the limiting block and the corresponding sliding groove. The end of each first spring is fixedly connected to the corresponding limiting block and the sliding groove.

[0013] In a preferred embodiment of this utility model, a connecting block is fixedly connected inside the mounting frame, the contact block is elastically connected to the connecting block, and a second support rod is symmetrically arranged at both ends of the connecting block.

[0014] In a preferred embodiment of the present invention, each of the second support rods is fixedly connected to the corresponding connecting block, the end of the contact block is slidably connected to the corresponding second support rod, and a third spring is sleeved on each of the second support rods, the end of each third spring being fixedly connected to the corresponding contact block and the connecting block respectively.

[0015] An optical coupler tester includes an optical coupler tester body, which is fixedly connected to a mounting bracket. Internal components are electrically connected, and the optical coupler tester body is provided with clip structures for connecting all the aforementioned circuit boards.

[0016] Compared with the prior art, the present invention has the following advantages:

[0017] 1. The clamp structure for connecting circuit boards and its optocoupler detector, by rotating the rotating drum, with the cooperation of the internal components of the clamping assembly, the contact block is driven downward to make close contact with the end of the circuit board, quickly completing the detection and restriction of the circuit board, and the connection end of the circuit board is connected at one time through the contact block and the connecting block, reducing the detection steps and improving the detection efficiency.

[0018] 2. The clamp structure for connecting circuit boards and its optocoupler detector, after one end of the circuit board contacts the limiting block, pushes the circuit board, the circuit board pushes the limiting block, the limiting block compresses the first spring, the first spring deforms, and applies the deformation force to the limiting block, the limiting block pushes the circuit board inward, and pushes the other end of the circuit board to a suitable position. The cooperation between the limiting block and the first spring adapts to circuit boards of different sizes.

[0019] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0020] In the attached diagram:

[0021] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0022] Figure 2 This is a schematic diagram of the internal structure of the mounting bracket of this utility model;

[0023] Figure 3 This is a schematic diagram of the clamping component structure of this utility model;

[0024] Figure 4 This is a schematic diagram of the structure between the rotating wheel and the abutment block of this utility model;

[0025] Figure 5 This is a schematic diagram of the structure between the rotating wheel and the contact block of this utility model.

[0026] In the diagram: 1. Main body of the optocoupler testing instrument; 2. Mounting frame; 21. Limiting block; 22. First spring; 3. Rotating cylinder; 31. Rotating wheel; 4. First support rod; 41. Sliding rod; 42. Second spring; 43. Abutment block; 44. Transmission block; 5. Contact block; 51. Connecting block; 52. Second support rod; 53. Third spring. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model.

[0028] Please see Figure 1-5 A clamp structure for connecting circuit boards includes a mounting frame 2 with mounting positions; a clamping assembly mounted on the mounting frame 2 for clamping and limiting the circuit board, the clamping assembly including a limiting block 21, a rotating cylinder 3, rotating wheels 31, and a contact block 5. The rotating wheels 31 are symmetrically arranged with the mounting frame 2, each rotating wheel 31 is rotatably connected to the mounting frame 2, and the rotating cylinder 3 is fixedly connected between the symmetrical rotating wheels 31. The contact block 5 is elastically connected to the mounting frame 2, and both ends of the contact block 5 are drively connected to the rotating wheels 31. The limiting block 21 is elastically connected to the inner wall of the mounting frame 2. After one end of the circuit board contacts the limiting block 21, the other end of the circuit board contacts the connecting block 51. By rotating the rotating cylinder 3, the contact block 5 is driven downward to make tight contact with the end of the circuit board through the mutual cooperation of the internal components of the clamping assembly, quickly completing the detection and limiting of the circuit board, and connecting the connection ends of the circuit board in one go through the contact block 5 and the connecting block 51, reducing the detection steps and improving the detection efficiency.

[0029] The mounting frame 2 is symmetrically equipped with first support rods 4, each of which is fixedly connected to the inner wall of the mounting frame 2. A corresponding rotating wheel 31 is rotatably connected to the first support rod 4. A sliding rod 41 is fixedly connected to the bottom end of each first support rod 4, and an abutment block 43 is slidably connected to each sliding rod 41. A second spring 42 is fitted onto each sliding rod 41, and the end of each second spring 42 is fixedly connected to the corresponding first support rod 4 and the abutment block 43. Multiple grooves are formed on each rotating wheel 31, and the edges of the grooves on the rotating wheel 31 abut against the ends of the abutment blocks 43. Each abutting block 43 has a transmission block 44 at its bottom, and each transmission block 44 is fixedly connected to the end of the contact block 5. A connecting block 51 is fixedly connected inside the mounting bracket 2. The contact block 5 and the connecting block 51 are elastically connected. Second support rods 52 are symmetrically arranged at both ends of the connecting block 51. Each second support rod 52 is fixedly connected to the corresponding connecting block 51. The end of the contact block 5 is slidably connected to the corresponding second support rod 52. A third spring 53 is sleeved on each second support rod 52. The end of each third spring 53 is fixed to the corresponding contact block 5 and the connecting block 51 respectively. The connection is made by manually rotating the drum 3, which drives the rotating wheel 31. As the rotating wheel 31 rotates, it pushes the abutment block 43 through the edge of its groove. The abutment block 43 is pushed upwards, compressing the second spring 42. The abutment block 43 separates from the transmission block 44, and the transmission block 44 loses the force of the abutment block 43. Before losing the force of the abutment block 43, the contact block 5 compresses the third spring 53. The third spring 53 deforms and applies the force of the deformation to the contact block 5. The force of the third spring 53 pushes the contact block 5 upwards, placing the other end of the circuit board on the receiving end. Between contact block 5 and connecting block 51, the rotating cylinder 3 rotates again, driving the rotating wheel 31. The groove of the rotating wheel 31 rotates to the bottom of the abutment block 43, and the abutment block 43 compresses the second spring 42. The deformation force of the second spring 42 is applied to the abutment block 43, and the abutment block 43 pushes the transmission block 44. The transmission block 44 drives the contact block 5 to move downward, so that the connection end of the circuit board is tightly contacted and connected by the contact block 5 and the connecting block 51. The connection end of the circuit board is quickly connected in one go by rotation, reducing the number of connection times and avoiding redundant operations in the test process caused by step-by-step testing.

[0030] It is worth noting that the K value of the third spring 53 is less than the K value of the second spring 42, and the K value of the third spring 53 can push the contact block 5 upward.

[0031] The mounting bracket 2 has symmetrically formed grooves on its inner wall. The limiting block 21 is slidably connected to the groove. A first spring 22 is provided between the limiting block 21 and the corresponding groove. The end of each first spring 22 is fixedly connected to the corresponding limiting block 21 and the groove. After one end of the circuit board contacts the limiting block 21, it pushes the circuit board. The circuit board pushes the limiting block 21, and the limiting block 21 compresses the first spring 22. The first spring 22 deforms and applies the deformation force to the limiting block 21. The limiting block 21 pushes the circuit board inward, pushing the other end of the circuit board to the appropriate position. The cooperation between the limiting block 21 and the first spring 22 adapts to circuit boards of different sizes.

[0032] An optical coupler tester includes an optical coupler tester body 1, which is fixedly connected to a mounting bracket 2. The internal components are electrically connected. The optical coupler tester body 1 is provided with a clamp structure for connecting all the circuit boards. After one end of the circuit board contacts the limiting block 21, the other end of the circuit board contacts the connecting block 51. By rotating the rotating drum 3, the contact block 5 is driven downward to make tight contact with the end of the circuit board through the mutual cooperation of the internal components of the clamping assembly, thus quickly completing the detection and limitation of the circuit board. Furthermore, the connection end of the circuit board is connected in one go through the contact block 5 and the connecting block 51, reducing the number of detection steps and improving detection efficiency.

[0033] It is worth noting that 1 includes a housing, a battery disposed within the housing, and a circuit board. The circuit board is characterized by having a detection signal source, an input-side circuit, and an output-side circuit. The detection signal source is connected to the input-side circuit, the input-side circuit is connected to an input wire, and the output-side circuit is connected to an output wire. The input wire extends out of the housing and connects to the left clamp, and the output wire extends out of the housing and connects to the right clamp. The left and right clamps are hinged and capable of holding the semiconductor optocoupler. The input-side circuit has an input-side indicator light (RLED), and the output-side circuit has an output-side indicator light (GLED). 1 has already been disclosed in the prior art of an online handheld semiconductor optocoupler detector CN218122159U, and will not be elaborated upon here.

[0034] Working principle: After one end of the circuit board contacts the limiting block 21, the other end of the circuit board contacts the connecting block 51. Rotating the drum 3, with the cooperation of the internal components of the clamping assembly, the contact block 5 is driven downwards to make tight contact with the end of the circuit board, quickly completing the detection and limiting of the circuit board. Furthermore, the contact block 5 and the connecting block 51 connect the connecting ends of the circuit board in one step, reducing detection steps and improving detection efficiency. Manually rotating the drum 3 drives the rotating wheel 31. During rotation, the edge of the groove in the rotating wheel 31 pushes the abutment block 43 upwards, compressing the second spring 42. The abutment block 43 separates from the transmission block 44, and the transmission block 44 loses the force of the abutment block 43. Before losing the force of the abutment block 43, the contact block 5 compresses the third spring 53. The third spring 53 deforms and applies the deformation force to the contact block 5. The force of the third spring 53 pushes the contact block 5 upwards, placing the other end of the circuit board on... Between contact block 5 and connecting block 51, the rotating cylinder 3 rotates again, driving the rotating wheel 31. The groove of the rotating wheel 31 rotates to the bottom of the abutment block 43, and the abutment block 43 compresses the second spring 42. The deformation force of the second spring 42 is applied to the abutment block 43, and the abutment block 43 pushes the transmission block 44. The transmission block 44 drives the contact block 5 to move downward, so that the connection end of the circuit board is tightly contacted and connected by the contact block 5 and the connecting block 51. The connection end of the circuit board is quickly connected in one go by rotation, reducing the number of connections and avoiding redundant operations in the test process caused by step-by-step testing. After one end of the circuit board contacts the limiting block 21, the circuit board is pushed. The circuit board pushes the limiting block 21, and the limiting block 21 compresses the first spring 22. The first spring 22 deforms and applies the deformation force to the limiting block 21. The limiting block 21 pushes the circuit board inward, pushing the other end of the circuit board to the appropriate position. The cooperation between the limiting block 21 and the first spring 22 adapts to circuit boards of different sizes.

[0035] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. A clip structure for a circuit board connection, characterized by include: Mounting bracket (2), with mounting positions provided on the mounting bracket (2); The clamping assembly is set on the mounting frame (2) and is used to clamp and limit the circuit board. The clamping assembly includes a limiting block (21), a rotating cylinder (3), a rotating wheel (31) and a contact block (5). The rotating wheel (31) is symmetrically arranged with the mounting frame (2). Each rotating wheel (31) is rotatably connected to the mounting frame (2). The rotating cylinder (3) is fixedly connected between the symmetrical rotating wheels (31). The contact block (5) is elastically connected to the mounting frame (2). The two ends of the contact block (5) are connected to the rotating wheel (31) for transmission. The limiting block (21) is elastically connected to the inner wall of the mounting frame (2).

2. The clip structure of claim 1, wherein The mounting frame (2) is symmetrically provided with first support rods (4), and each first support rod (4) is fixedly connected to the inner wall of the mounting frame (2), and the corresponding rotating wheel (31) is rotatably connected to the first support rod (4).

3. The clip structure of claim 2, wherein the clip structure is configured to be attached to the circuit board by a plurality of fasteners. Each of the first support rods (4) is fixedly connected to a slide rod (41) at its bottom end. Each slide rod (41) is slidably connected to an abutment block (43). Each slide rod (41) is fitted with a second spring (42). The end of each second spring (42) is fixedly connected to the corresponding first support rod (4) and the abutment block (43).

4. The clip structure of claim 1, wherein Each of the said rotating wheels (31) has multiple grooves, and the edge of the groove on the rotating wheel (31) abuts against the end of the abutment block (43).

5. The clip structure of claim 4, wherein, Each of the aforementioned abutting blocks (43) has a transmission block (44) abutting its bottom, and each transmission block (44) is fixedly connected to the end of the contact block (5).

6. The clip structure of claim 1, wherein, The inner wall of the mounting bracket (2) is symmetrically provided with sliding grooves. The limiting block (21) is slidably connected to the sliding groove. A first spring (22) is provided between the limiting block (21) and the corresponding sliding groove. The end of each first spring (22) is fixedly connected to the corresponding limiting block (21) and the sliding groove.

7. The clip structure for connecting circuit boards according to claim 1, characterized in that, The mounting bracket (2) is fixedly connected to a connecting block (51), and the contact block (5) is elastically connected to the connecting block (51). The two ends of the connecting block (51) are symmetrically provided with second support rods (52).

8. The clip structure for connecting circuit boards according to claim 7, characterized in that, Each of the second support rods (52) is fixedly connected to the corresponding connecting block (51), the end of the contact block (5) is slidably connected to the corresponding second support rod (52), and each of the second support rods (52) is fitted with a third spring (53), the end of each third spring (53) is fixedly connected to the corresponding contact block (5) and connecting block (51) respectively.

9. An optical coupler detector, comprising an optical coupler detector body (1), characterized in that, The main body (1) of the optical coupler testing instrument is fixedly connected to the mounting bracket (2), and the internal components are electrically connected. The main body (1) of the optical coupler testing instrument is provided with a clip structure for connecting the circuit board as described in any one of claims 1-8.

Images