CN210665943U - Multichannel circuit board detection device - Google Patents
Multichannel circuit board detection device Download PDFInfo
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- CN210665943U CN210665943U CN201920801092.1U CN201920801092U CN210665943U CN 210665943 U CN210665943 U CN 210665943U CN 201920801092 U CN201920801092 U CN 201920801092U CN 210665943 U CN210665943 U CN 210665943U
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Abstract
The utility model discloses a multichannel circuit board detection device, which comprises a push-pull clamp, a push-pull clamp mounting plate, a circuit board placing panel to be detected, a top column fixing plate, a telescopic metal probe, a digital multimeter capable of communicating and a computer; the push-pull clamp mounting plate is vertically fixed on a horizontally placed circuit board placing panel to be tested; the push-pull clamp is fixed on the push-pull clamp mounting plate; the top column fixing plate fixed with the top column is fixed at the push-pull end of the push-pull clamp; the telescopic metal probe is fixed on the circuit board placing panel to be tested, one end of the telescopic metal probe is contacted with a testing channel of the circuit board to be tested, and the other end of the telescopic metal probe is connected with a digital multimeter capable of communicating; the computer is used for calculating the set voltage value and the set current value of the circuit board to be tested according to the reading of the communication digital multimeter. The utility model discloses can improve multichannel circuit board voltage and current setting value's detection speed and the degree of accuracy.
Description
Technical Field
The invention relates to the technical field of circuit board detection, in particular to a multi-channel circuit board detection device.
Background
The voltage and current output by the battery formation capacity-grading detection equipment can be set by a user independently, and after the voltage and current are set, a digital-to-analog conversion chip is needed to be used for converting a digital signal into an analog signal so as to realize the output of the voltage and the current. However, since there is a certain error value when the peripheral circuit board of the digital-to-analog conversion chip outputs, in order to detect the set voltage value and current value of the circuit board, the existing detection method generally uses a voltmeter to measure the low end value and high end value of the voltage end and an ammeter to measure the low end value and high end value of the current end by manually pressing the contact joint and the current joint, so as to obtain corresponding readings, and then manually fills the readings in a computer, and obtains the set voltage value and current value by the analysis and calculation of the computer. However, the circuit board has 8 channels or 16 channels, each of which needs to repeat the above-mentioned work, and the speed is slow, and the reading of the operator has some errors.
Disclosure of Invention
The invention aims to provide a multi-channel circuit board detection device which can improve the detection speed and accuracy.
In order to achieve the purpose, the invention provides the following scheme:
a multi-channel circuit board detection device comprises a push-pull clamp, a push-pull clamp mounting plate, a circuit board placing panel to be detected, a top column fixing plate, a telescopic metal probe, a digital multimeter capable of communicating and a computer;
the push-pull clamp mounting plate comprises a square plate and two supporting legs, the two supporting legs are positioned at two ends of the square plate, and the supporting legs are used for supporting the square plate to enable the push-pull clamp mounting plate to be vertically fixed on the circuit board placing panel to be tested;
the circuit board placing panel to be tested is placed in parallel with the horizontal plane;
the fixed end of the push-pull clamp is fixed on the square plate;
one surface of the top column fixing plate is fixed at the push-pull end of the push-pull clamp, and the other surface of the top column fixing plate is fixedly connected with the top column;
the telescopic metal probe is fixed on the circuit board placing panel to be tested, one end of the telescopic metal probe is in contact with a testing channel of the circuit board to be tested, and the other end of the telescopic metal probe is connected with the digital universal meter capable of communicating;
and the computer is used for calculating the set voltage value and the set current value of the circuit board to be tested according to the reading of the communication digital multimeter.
Optionally, the testing device further comprises a power supply for supplying power to the multi-channel circuit board to be tested.
Optionally, the number of the push-pull clips is multiple.
Optionally, the base is located below the circuit board placing panel and fixedly connected with the circuit board placing panel.
Optionally, the top pillar fixing plate is made of a hard PVC transparent plate.
Optionally, the push-pull clamp mounting plate and the circuit board placing panel to be tested are made of bakelite plates.
Optionally, the top pillar is a plastic steel top pillar.
Optionally, the push-pull clamp is fixed on the push-pull clamp mounting plate through a bolt.
Optionally, the communicable digital multimeter is located in the base.
According to the specific embodiment provided by the invention, the invention discloses the following technical effects:
the invention uses the telescopic metal probe to measure the voltage and current values of the circuit board to be tested, and the computer directly carries out analysis and calculation according to the voltage and current values, thereby improving the testing speed, and uses the push-pull clamp to downwards prop against the circuit board to be tested, thereby ensuring the good contact between the circuit board to be tested and the telescopic metal probe, and further improving the detection accuracy.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic diagram of a multi-channel circuit board inspection apparatus according to an embodiment of the present invention;
the method comprises the following steps of 1-push-pull clamp, 2-push-pull clamp mounting plate, 3-top column fixing plate, 4-top column, 5-circuit board placing panel to be tested, 6-base, 7-power switch, 8-telescopic metal probe and 9-power supply.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention aims to provide a multi-channel circuit board detection device which can improve the detection speed and accuracy.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
Fig. 1 is a structural diagram of a multi-channel circuit board detection device according to an embodiment of the present invention, and as shown in fig. 1, the multi-channel circuit board detection device includes a push-pull clip 1, a push-pull clip mounting plate 2, a top post fixing plate 3, a top post 4, a circuit board placement panel to be detected 5, a base 6, a retractable metal probe 8, a digital multimeter capable of communication, a computer and a power supply 9;
the push-pull clamp mounting plate 2 and the circuit board placing panel 5 to be tested are made of bakelite plates, the push-pull clamp mounting plate 2 comprises a square plate and two supporting legs, the two supporting legs are located at two ends of the square plate, and the supporting legs are used for supporting the square plate to enable the push-pull clamp mounting plate 2 to be vertically fixed on the circuit board placing panel 5 to be tested; the circuit board placing panel 5 to be tested is horizontally placed on the base 6;
the push-pull clamps 1 are preferably two, so that the left side and the right side of the circuit board to be tested with a long area can be uniformly stressed, the pressure on two sides of the telescopic metal probe 8 can be kept consistent, and the voltage and current interfaces of all channels can be correctly calibrated; the two push-pull clamps 1 are fixed on the push-pull clamp mounting plate 2 through bolts;
the top column fixing plate 3 is made of a hard PVC transparent plate, and the transparent material can enable a tester to observe the calibration condition of the circuit board at any time, so that accidents are prevented; one side of the top column fixing plate 3 is fixed with an bakelite plate which is fixedly connected with the push-pull end of the push-pull clamp 1, so that the deformation of the top column fixing plate 3 after the push-pull clamp 1 is pressed down can be prevented; the other side of the top column fixing plate 3 is fixedly connected with a top column 4, the top column 4 is made of a plastic steel top column, and the conical plastic steel top column is used for fixing the circuit board to be tested, so that the pressure for fixing the circuit board is enhanced while the short circuit of the circuit board is avoided, and the stress of the circuit board is uniform.
The power supply 9 is used for supplying power to the multi-channel circuit board to be tested; the retractable metal probe 8 is fixed on the circuit board placing panel 5 to be tested, one end of the retractable metal probe 8 is in contact with a testing channel of the circuit board to be tested, the other end of the retractable metal probe 8 is connected with a communicable digital multimeter, the brand and model of the communicable digital multimeter are Agilent multimeters 34401a, the communicable digital multimeter is positioned in the base 6, the base is also provided with a hole for placing a power switch 7, the computer is connected with the communicable digital multimeter and used for calculating a set voltage value and a set current value of the circuit board to be tested according to the voltage and current values of the communicable digital multimeter, the calculation process of the computer adopts a KB value calculation method, the KB value calculation method refers to a straight line passing through two points in a linear function, the slope of the KB value is K, the base number is B, and particularly, the low-end value, and measuring the low end value and the high end value of the current end by using a communicable digital multimeter to obtain the numerical values of the low end value and the high end value, transmitting the numerical values to a computer in a 485 communication mode, and calculating the KB value of the channel by the computer so as to obtain the voltage value and the current value set by a user.
The tool principle is as follows: and opening a power switch, placing the circuit board to be tested on a circuit board placing panel to be tested, pushing the push-pull belt to drive the ejection column fixing plate and the ejection column to be pressed downwards, enabling the plastic steel ejection column to be pressed against the circuit board to be tested to perform continuous pressing action, enabling the telescopic metal probe to be pressed and contracted in resultant force until the stroke of the push-pull belt is pushed out to the lowest point and completing a self-locking state, enabling the telescopic metal probe to be in good contact with the circuit board to be tested, starting to perform data testing, and transmitting data to a computer.
The invention uses the telescopic metal probe to measure the voltage and current values of the circuit board to be tested, and the computer directly carries out analysis and calculation according to the voltage and current values, thereby replacing the original manual operation, improving the testing speed, and using the push-pull clamp to downwards prop against the circuit board to be tested, ensuring the good contact between the circuit board to be tested and the telescopic metal probe, and further improving the detection accuracy.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The principles and embodiments of the present invention have been described herein using specific examples, which are provided only to help understand the method and the core concept of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.
Claims (9)
1. A multi-channel circuit board detection device is characterized by comprising a push-pull clamp, a push-pull clamp mounting plate, a circuit board placing panel to be detected, a top column fixing plate, a telescopic metal probe, a digital multimeter capable of communicating and a computer;
the push-pull clamp mounting plate comprises a square plate and two supporting legs, the two supporting legs are positioned at two ends of the square plate, and the supporting legs are used for supporting the square plate to enable the push-pull clamp mounting plate to be vertically fixed on the circuit board placing panel to be tested;
the circuit board placing panel to be tested is placed in parallel with the horizontal plane;
the fixed end of the push-pull clamp is fixed on the square plate;
one surface of the top column fixing plate is fixed at the push-pull end of the push-pull clamp, and the other surface of the top column fixing plate is fixedly connected with the top column;
the telescopic metal probe is fixed on the circuit board placing panel to be tested, one end of the telescopic metal probe is in contact with a testing channel of the circuit board to be tested, and the other end of the telescopic metal probe is connected with the digital universal meter capable of communicating;
and the computer is used for calculating the set voltage value and the set current value of the circuit board to be detected according to the detection value of the communication digital multimeter.
2. The multi-channel circuit board detection device of claim 1, further comprising a power supply for supplying power to the multi-channel circuit board to be detected.
3. The multi-channel circuit board inspection device of claim 1, wherein the push-pull clip is multiple.
4. The multi-channel circuit board inspection device of claim 1, further comprising a base, wherein the base is located under the circuit board placement panel and is fixedly connected to the circuit board placement panel.
5. The multi-channel circuit board detecting device of claim 1, wherein the top pillar fixing plate is made of a rigid PVC transparent plate.
6. The multi-channel circuit board detection device as claimed in claim 1, wherein the push-pull clamp mounting plate and the circuit board placement panel to be detected are made of bakelite plates.
7. The multi-channel circuit board detection device of claim 1, wherein the top pillar is a plastic steel top pillar.
8. The multi-channel circuit board inspection device of claim 1, wherein the push-pull clamp is bolted to the push-pull clamp mounting plate.
9. The multi-channel circuit board inspection device of claim 4, wherein the communicable digital multimeter is located within the base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920801092.1U CN210665943U (en) | 2019-05-30 | 2019-05-30 | Multichannel circuit board detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920801092.1U CN210665943U (en) | 2019-05-30 | 2019-05-30 | Multichannel circuit board detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210665943U true CN210665943U (en) | 2020-06-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920801092.1U Active CN210665943U (en) | 2019-05-30 | 2019-05-30 | Multichannel circuit board detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210665943U (en) |
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2019
- 2019-05-30 CN CN201920801092.1U patent/CN210665943U/en active Active
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