Circuit board inspection device

Abstract

The utility model relates to the field of circuit board inspection, in particular to a circuit board inspection device, which comprises a clamping seat, a pressing plate, an indicating lamp and a vent hood, the clamping seat is provided with a clamping groove for clamping a circuit board, the groove bottom of the clamping groove is provided with an anode contact chip connected with the end part of the clamping seat, and the groove top of the clamping groove is provided with an avoiding groove penetrating through the clamping seat. According to the circuit board inspection device, the pressing plate is arranged to be in a state capable of sliding up and down, so that the circuit board can be clamped into the clamping groove from top to bottom, the circuit board is prevented from being inserted in an insertion mode, and the damage to the end part of the circuit board is avoided. And the indicating lamp is arranged, so that after the circuit board is installed, whether the circuit board is connected or not can be quickly judged, and the situation of detection faults caused by the fact that the circuit board is not connected into a circuit is avoided. And the pressing plate is divided into the fixed pressing block and the rotary pressing block, so that the blocking of the pressing plate to the sight of a worker is reduced when the circuit board is installed.

Description

Technical Field

[0001] The utility model relates to the field of circuit board inspection, in particular to a circuit board inspection device. Background Art

[0002] When testing the semiconductor gas sensor circuit board, it is necessary to pass the gas to be tested into the circuit board so that the gas contacts the circuit board, and then through the redox reaction, the current passing through is increased or decreased. When testing the circuit board, the first step is to connect the circuit board to the detection circuit. If the circuit board is not connected to the circuit, it is impossible to determine the cause of the circuit board failure, whether it is a circuit board failure or not connected to the circuit. Therefore, it is necessary to design a detection device that can quickly determine whether the circuit board is connected to the circuit. And generally, when the circuit board is connected to the circuit, the circuit board is inserted into the circuit socket through a slot, but this method will cause wear on the port of the circuit board, and if the wiring port in the socket is blocked, the circuit board will be damaged when the circuit board is inserted. Summary of the invention

[0003] The utility model aims to provide a circuit board inspection device.

[0004] To achieve this purpose, the utility model adopts the following technical solutions:

[0005] Provided is a circuit board inspection device, comprising a card holder, a pressing plate, an indicator light and a ventilation cover. The card holder is provided with a card slot for the circuit board to be inserted into, a positive contact piece connected to the end of the card holder is arranged at the bottom of the card slot, and a avoidance groove penetrating the card holder is arranged at the top of the card slot, so that the circuit board can be inserted into the card slot from top to bottom. The pressing plate can be slid up and down in the avoidance groove, and a negative contact piece connected to the end of the circuit board is arranged at the bottom of the pressing plate. The card holder and the pressing plate are externally connected with a detection circuit, and the pressing plate is pressed against the top of the circuit board so that the circuit board is connected to the external circuit. When the controller detects that the circuit board is connected, the controller will control the indicator light to light up, so that the worker can quickly determine that the circuit board is connected. The ventilation cover is arranged on the outer edge of the circuit board, and the opening of the ventilation cover contacts with the card holder, so that the ventilation cover and the card holder form a sealed chamber.

[0006] Furthermore, there are multiple card slots and pressure plates in the same number, and the ventilation hood is arranged on the outer edges of the multiple circuit boards.

[0007] Furthermore, the width of the avoidance groove is greater than the width of the clamping groove.

[0008] Furthermore, the pressure plate includes a fixed pressure block and a rotating pressure block rotatably installed on the end of the fixed pressure block. The fixed pressure block can be vertically slidably installed on the base. When the bottom of the fixed pressure block contacts the top of the circuit board, the bottom of the rotating pressure block contacts the top of the circuit board. When the ventilation cover is set on the outer edge of the circuit board, the end of the rotating pressure block contacts the ventilation cover.

[0009] Furthermore, a guide column is arranged on the top of the fixed pressing block, and a guide seat slidably connected to the guide column is fixedly arranged on the clamping seat.

[0010] Furthermore, a sliding seat is arranged at the bottom of the ventilation hood, a connecting plate is arranged at the bottom of the holder, and a sliding rail which is slidably connected with the sliding seat is arranged on the connecting plate.

[0011] Furthermore, a horizontal clamping mechanism is provided on the side of the ventilation hood away from the clamping seat, and the horizontal clamping mechanism includes a plug post and a guide slide seat fixedly installed on the ventilation hood. The plug post is slidably connected to the guide slide seat, and a clamping hole for the plug post to be clamped is opened on the connecting plate.

[0012] Furthermore, the card holder is composed of two plates, the avoidance groove is located on the upper plate, and the card slot is located on the lower plate.

[0013] Beneficial effects of the utility model: The circuit board inspection device, by setting the pressing plate to be able to slide up and down, allows the circuit board to be inserted into the card slot from top to bottom, avoiding the circuit board being inserted by insertion, and avoiding damage to the end of the circuit board. And by providing an indicator light, after the circuit board is installed, it can quickly determine whether the circuit board is connected, avoiding the occurrence of detection failures caused by the circuit board not being connected to the circuit. And the pressing plate is divided into a fixed pressing block and a rotating pressing block, which reduces the obstruction of the worker's vision due to the pressing plate when installing the circuit board. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solution of the embodiment of the utility model, the following is a brief introduction to the drawings required for use in the embodiment of the utility model.

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0016] Figure 2 for Figure 1 A local enlarged view of point A;

[0017] Figure 3 It is a partial three-dimensional structural schematic diagram of the utility model;

[0018] Figure 4 It is a schematic diagram of the three-dimensional structure of the card seat;

[0019] In the figure: 1-card seat; 1a-card slot; 1b-avoidance slot; 2-pressure plate; 2a-fixed pressure block; 2b-rotating pressure block; 2c-guide seat; 2d-guide column; 3-indicator light; 4-ventilation cover; 4a-slide seat; 4b-slide rail; 5-circuit board; 6-connecting plate; 6a-card hole; 7-insertion column; 8-guide slide seat; 9-blocking seat. DETAILED DESCRIPTION

[0020] The technical solution of the utility model is further explained below with reference to the accompanying drawings and through specific implementation methods.

[0021] Among them, the drawings are only used for illustrative purposes and represent only schematic diagrams rather than actual pictures, and should not be understood as limitations on this patent; in order to better illustrate the embodiments of the utility model, some parts of the drawings will be omitted, enlarged or reduced, and do not represent the size of the actual product.

[0022] Reference Figures 1 to 4 The circuit board inspection device shown in the figure comprises a card holder 1, a pressing plate 2, an indicator light 3 and a vent cover 4. The card holder 1 is provided with a card slot 1a for the circuit board 5 to be inserted into. The bottom of the card slot 1a is provided with a positive contact sheet connected to the end of the card holder 1. The top of the card slot 1a is provided with an escape groove 1b that penetrates the card holder 1, so that the circuit board 5 can be inserted into the card slot 1a from top to bottom. The pressing plate 2 can be slid up and down in the escape groove 1b. The bottom of the pressing plate 2 is provided with a negative contact sheet connected to the end of the circuit board 5. The seat 1 and the pressure plate 2 are externally connected with a detection circuit, which is pressed against the top of the circuit board 5 by the pressure plate 2, so that the circuit board 5 is connected to the external circuit. When the controller detects that the circuit board 5 is connected, the controller will light up the control indicator light 3, so that the worker can quickly determine that the circuit board 5 is connected. The ventilation hood 4 is set on the outer edge of the circuit board 5, and the opening of the ventilation hood 4 is in contact with the card seat 1, so that the ventilation hood 4 and the card seat 1 form a sealed chamber, and the circuit board 5 is detected by introducing the detection gas into the ventilation hood 4.

[0023] There are multiple card slots 1a and pressing plates 2, and the number is the same. The ventilation cover 4 covers the outer edges of multiple circuit boards 5, so that the device can simultaneously detect multiple circuit boards 5. In this embodiment, the number of card slots 1a and pressing plates 2 is 15, and the number can be changed according to user needs.

[0024] The width of the avoidance groove 1b is greater than the width of the locking groove 1a, so that when the circuit board 5 is inserted, sufficient space is left on the side of the circuit board 5.

[0025] The pressing plate 2 includes a fixed pressing block 2a and a rotating pressing block 2b rotatably mounted on the end of the fixed pressing block 2a. The fixed pressing block 2a can be vertically slidably mounted on the card seat 1. When the bottom of the fixed pressing block 2a contacts the top of the circuit board 5, the bottom of the rotating pressing block 2b contacts the top of the circuit board 5. When the ventilation cover 4 is covered on the outer edge of the circuit board 5, the end of the rotating pressing block 2b contacts the ventilation cover 4 to avoid blowing up the rotating pressing block 2b during ventilation, that is, the rotating pressing block 2b is limited and fixed by the ventilation cover 4. By setting the pressing plate 2 as a split structure, when the worker pulls up the rotating pressing block 2b again, the rotating pressing block 2b can be bent to avoid blocking the worker's line of sight. A pull ring is set on the top of the rotating pressing block 2b, through which the worker's fingers can be inserted to facilitate pulling up the rotating pressing block 2b.

[0026] A guide post 2d is provided on the top of the fixed pressing block 2a, and a guide seat 2c slidably connected to the guide post 2d is fixedly provided on the card holder 1. The guide post 2d and the guide seat 2c provide guidance for the vertical sliding of the fixed pressing block 2a, and the indicator light 3 is fixedly installed on the guide seat 2c for workers to watch.

[0027] A slide seat 4a is provided at the bottom of the vent hood 4, and a connecting plate 6 is provided at the bottom of the card seat 1. A slide rail 4b is provided on the connecting plate 6 to be slidably connected to the slide seat 4a, so that the vent hood 4 can slide horizontally and then fit on the card seat 1. In order to prevent the slide seat 4a and the slide rail 4b from separating, a stopper 9 for limiting the position of the vent hood 4 can be provided on the connecting plate 6. A positioning groove for installing the slide rail 4b is provided on the connecting plate 6.

[0028] A horizontal clamping mechanism is provided on the side of the vent hood 4 away from the card seat 1. The horizontal clamping mechanism includes a plug post 7 and a guide slide seat 8 fixedly mounted on the vent hood 4. The plug post 7 is slidably connected to the guide slide seat 8. A clamping hole 6a for the plug post 7 to be clamped is provided on the connecting plate 6. Based on the fact that the vent hood 4 can slide horizontally, the plug post 7 is provided so that when the vent hood 4 is fitted with the card seat 1, the plug post 7 is inserted into the clamping hole 6a to fix the vent hood 4. The bottom of the plug post 7 can be provided with a chamfer to facilitate the plug post 7 to be clamped into the clamping hole 6a.

[0029] The card holder 1 is composed of two plates, the avoidance groove 1b is located in the upper plate, and the card slot 1a is located in the lower plate, which is convenient for workers to process the card holder 1. And an I-beam can be set at the bottom of the lower plate, which is used to increase the height of the card holder 1 to prevent the worker's fingers from contacting the connecting plate 6 when inserting the circuit board 5.

[0030] Working principle: First, the worker pulls up the pressing plate 2, then inserts the circuit board 5 into the card slot 1a, and then puts down the pressing plate 2 so that the pressing plate 2 presses the circuit board 5 tightly. In this way, all the circuit boards 5 are installed. After each circuit board 5 is installed, if the circuit board 5 is connected to the external circuit, the indicator light 3 will light up. The ventilation cover 4 is covered on multiple circuit boards 5, and then the plug 7 is connected to the connecting plate 6 to complete the fixed installation of the ventilation cover 4. Finally, the ventilation cover 4 is ventilated to test the performance of the circuit board 5.

[0031] The circuit board inspection device sets the pressing plate to be able to slide up and down, so that the circuit board can be inserted into the card slot from top to bottom, avoiding the circuit board being inserted by insertion and avoiding damage to the end of the circuit board. In addition, by providing an indicator light, after the circuit board is installed, it can quickly determine whether the circuit board is connected, avoiding the occurrence of detection failures caused by the circuit board not being connected to the circuit. In addition, the pressing plate is divided into a fixed pressing block and a rotating pressing block, which reduces the obstruction of the worker's vision due to the pressing plate when installing the circuit board.

[0032] The above are only preferred embodiments of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A circuit board inspection device, characterized in that: The card base (1) comprises a card seat (1), a pressure plate (2), an indicator light (3) and a ventilation cover (4); the card base (1) is provided with a card slot (1a) for a circuit board (5) to be inserted into; the bottom of the card slot (1a) is provided with a positive contact sheet connected to the end of the card base (1); the top of the card slot (1a) is provided with an escape groove (1b) penetrating the card base (1), so that the circuit board (5) can be inserted into the card slot (1a) from top to bottom; the pressure plate (2) can be inserted into the escape groove (1b) by sliding up and down; the bottom of the pressure plate (2) is provided with a contact sheet connected to the end of the circuit board (5) The card seat (1) and the pressing plate (2) are externally connected with a detection circuit, and the pressing plate (2) is pressed tightly on the top of the circuit board (5), so that the circuit board (5) is connected to the external circuit. When the controller detects that the circuit board (5) is connected, the controller will light up the control indicator light (3), so that the worker can quickly determine that the circuit board (5) is connected. The ventilation cover (4) is set on the outer edge of the circuit board (5), and the opening of the ventilation cover (4) is in contact with the card seat (1), so that the ventilation cover (4) and the card seat (1) form a sealed chamber.

2. A circuit board inspection device according to claim 1, characterized in that: The card slots (1a) and the pressure plates (2) are both multiple and of the same number, and the ventilation cover (4) is arranged to cover the outer edges of the multiple circuit boards (5).

3. A circuit board inspection device according to claim 1, characterized in that: The width of the avoidance groove (1b) is greater than the width of the clamping groove (1a).

4. A circuit board inspection device according to claim 1, characterized in that: The pressing plate (2) comprises a fixed pressing block (2a) and a rotating pressing block (2b) rotatably mounted on the end of the fixed pressing block (2a); the fixed pressing block (2a) is vertically slidably mounted on the holder (1); when the bottom of the fixed pressing block (2a) contacts the top of the circuit board (5), the bottom of the rotating pressing block (2b) contacts the top of the circuit board (5); when the ventilation cover (4) is covered on the outer edge of the circuit board (5), the end of the rotating pressing block (2b) contacts the ventilation cover (4).

5. A circuit board inspection device according to claim 4, characterized in that: A guide column (2d) is arranged on the top of the fixed pressing block (2a), and a guide seat (2c) slidably connected to the guide column (2d) is fixedly arranged on the clamping seat (1).

6. A circuit board inspection device according to claim 1, characterized in that: A sliding seat (4a) is provided at the bottom of the ventilation cover (4), a connecting plate (6) is provided at the bottom of the clamping seat (1), and a sliding rail (4b) slidably connected to the sliding seat (4a) is provided on the connecting plate (6).

7. A circuit board inspection device according to claim 6, characterized in that: A horizontal clamping mechanism is provided on a side of the ventilation hood (4) away from the clamping seat (1), the horizontal clamping mechanism comprising a plug post (7) and a guide slide seat (8) fixedly mounted on the ventilation hood (4), the plug post (7) being slidably connected to the guide slide seat (8), and a clamping hole (6a) for clamping the plug post (7) is provided on the connecting plate (6).

8. A circuit board inspection device according to claim 1, characterized in that: The holder (1) is composed of two plates, the avoidance groove (1b) is located on the upper plate, and the clamping groove (1a) is located on the lower plate.

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