CN210051825U - Low resistance testing device for circuit board - Google Patents
Low resistance testing device for circuit board Download PDFInfo
- Publication number
- CN210051825U CN210051825U CN201920477818.0U CN201920477818U CN210051825U CN 210051825 U CN210051825 U CN 210051825U CN 201920477818 U CN201920477818 U CN 201920477818U CN 210051825 U CN210051825 U CN 210051825U
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- panel
- press
- circuit board
- low resistance
- pull rod
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- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
- Measurement Of Resistance Or Impedance (AREA)
Abstract
The utility model discloses a circuit board low resistance testing device, which comprises a working panel, wherein a supporting panel is fixedly arranged at the rear side part of the working panel, a press pull rod is arranged on the supporting panel, a press panel is arranged below the press pull rod, the press pull rod drives the press panel to move back and forth up and down, guide rods are respectively arranged at the two sides of the press panel, the guide rods run through the press panel, and a testing mechanism is also arranged on the supporting panel; a plurality of test probes are arranged on the press machine panel at intervals and are electrically connected with the test mechanism. The utility model discloses a set up the work panel, the cooperation sets up the press panel in work panel top, utilizes the detection probe and the accredited testing organization that set up on the press panel, makes a round trip to function from top to bottom under the drive of press pull rod for accredited testing organization detects the resistance of the PCB base plate that prevents on the work panel under detection probe's effect, effectively detects out the resistance that switches on of control circuit board for the motor, in order to reach the quick judgement effect.
Description
Technical Field
The utility model relates to a PCB board makes technical field, especially relates to a circuit board low resistance testing arrangement.
Background
Control circuit board for motor, wherein the design of one side has two coils, and the crisscross structure of similar great wall form of coil inner line design, two coils in fact with belong to a intercommunication return circuit, and the normal operating that can direct influence the motor is influenced to the on-resistance value in this intercommunication return circuit, and the major factor of relative influence includes: the line width of the corresponding line, whether the line is incomplete or not, whether local connection exists or not, and the like.
And rely on artifical visual or with the magnifying glass inspection, the misjudgment appears easily and efficiency is relatively low, need just can carry out effectual quick inspection and accurate judgement to the on-resistance value of motor control circuit board with the help of some equipment or methods this moment.
SUMMERY OF THE UTILITY MODEL
Therefore, it is necessary to provide a circuit board low resistance testing device for solving the problems of the prior art, which has a simple structure, a reasonable design and convenient operation, and can effectively detect the conduction resistance of the control circuit board for the motor.
In order to solve the technical problem, the utility model discloses the technical scheme who adopts is: a circuit board low resistance testing device comprises a working panel, wherein a supporting panel is fixedly arranged on the rear side portion of the working panel, a press pull rod is arranged on the supporting panel, a press panel is arranged below the press pull rod, the press pull rod drives the press panel to move up and down back and forth, guide and feed rods are respectively arranged on two sides of the press panel and penetrate through the press panel, a testing mechanism is further arranged on the supporting panel, and the testing mechanism is a four-wire testing machine; the testing mechanism is provided with a current connecting wire and a voltage connecting wire, and the testing probes are electrically connected with the testing mechanism through the current connecting wire and the voltage connecting wire respectively.
In one embodiment, a first limiting block is arranged on the rear side part of the upper end of the working panel, a second limiting block is arranged on one side of the working panel, and the direction of the extension line of the first limiting block is perpendicular to the direction of the extension line of the second limiting block.
In one embodiment, the testing mechanism is a four wire tester.
In one embodiment, the testing mechanism is provided with a current connecting line and a voltage connecting line, and the testing probe is electrically connected with the testing mechanism through the current connecting line and the voltage connecting line respectively.
In one embodiment, the working panel is provided with positioning pillars which are respectively arranged at four corners of the working panel.
In one embodiment, the working panel is made of acrylic material.
In one embodiment, the work panel is a rectangular panel configuration.
To sum up, the utility model discloses circuit board low resistance testing arrangement is through setting up the work panel, and the cooperation sets up the press panel in work panel top, utilizes the test probe and the accredited testing organization that set up on the press panel, makes a round trip to function from top to bottom under the drive of press pull rod for accredited testing organization detects the resistance of the PCB base plate that prevents on the work panel under test probe's effect, effectively detects out control circuit board's for the motor resistance that switches on, in order to reach the quick judgement effect.
Drawings
Fig. 1 is a schematic structural diagram of the circuit board low resistance testing device of the present invention.
Detailed Description
To further understand the features and technical means of the present invention, and the specific purpose and function achieved, the advantages and spirit of the present invention are further understood by the following detailed description of the present invention with reference to the accompanying drawings.
As shown in fig. 1, the utility model discloses circuit board low resistance testing arrangement includes work panel 10, be provided with location socle 20 on the work panel 10, work panel 10 is ya keli material structure, work panel 10 is the rectangle panel structure, location socle 20 sets up four edges of work panel 10 respectively for support work panel 10.
The back side part of the working panel 10 is fixedly provided with a supporting panel 30, the supporting panel 30 is provided with a press pull rod 40, a press panel 50 is arranged below the press pull rod 40, the press pull rod 40 drives the press panel 50 to move up and down back and forth, the press pull rod 40 is lifted or pressed down in a manual mode and can also be operated in a motor driving mode according to needs, and the operation is known technology and is not repeated.
The two sides of the press panel 50 are respectively provided with the guide rods 60, and the guide rods 60 penetrate through the press panel 50, so that the press panel 50 can move back and forth up and down along the direction of the guide rods 60, and the press panel 50 is prevented from deviating from the position in the movement process to influence the resistance value test of the PCB substrate.
The supporting panel 30 is further provided with a testing mechanism 70, the testing mechanism 70 is a low resistance tester, and specifically, the testing mechanism 70 is a four-wire tester; the press machine panel 50 is provided with a plurality of test probes 51 at intervals, the test mechanism 70 is provided with a current connecting line 71 and a voltage connecting line 72, and the test probes 51 are electrically connected with the test mechanism 70 through the current connecting line 71 and the voltage connecting line 72 respectively.
In one of the embodiments, the rear side portion of the upper end of the working panel 10 is provided with a first limiting block 11, one side of the working panel 10 is provided with a second limiting block 12, the direction of the extension line of the first limiting block 11 is perpendicular to the direction of the extension line of the second limiting block 12, and the first limiting block 11 and the second limiting block 12 are used for positioning the PCB substrate to be detected so as to facilitate the low resistance detection of the PCB substrate.
When the utility model is used, firstly, an upper limit resistance value is set, 10 PCB substrates which are qualified in the inspection under the magnifier are taken out, and after an average resistance value is tested by utilizing the testing mechanism 70, a proper upper limit resistance value is selected by taking the average resistance value as a reference according to the detection requirement; then, detecting a PCB substrate which is tested by using a universal meter, and comparing the resistance value tested by the testing mechanism 70 so as to confirm that the resistance value tested by the testing mechanism 70 is within the specification set by the testing mechanism 70; the PCB substrate to be tested is placed on the working panel 10, the PCB substrate is positioned through the first limiting block 11 and the second limiting block 12, the press machine panel 50 is lifted or put down by the press machine pull rod 40, so that the test probe 51 on the press machine panel 50 can be in contact with the PCB substrate, and the test work of the resistance value of the PCB substrate is realized.
To sum up, the utility model discloses circuit board low resistance testing arrangement is through setting up work panel 10, and the cooperation sets up press panel 50 in work panel 10 top, utilizes the detection probe 51 and the accredited testing organization 70 that set up on press panel 50, makes a round trip to function from top to bottom under the drive of press pull rod 40 for accredited testing organization 70 detects the resistance of the PCB base plate that prevents on work panel 10 under detection probe 51's effect, effectively detects out control circuit board's for the motor resistance that switches on, in order to reach the quick judgement effect.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (7)
1. The utility model provides a circuit board low resistance testing arrangement which characterized in that: the device comprises a working panel, wherein a supporting panel is fixedly arranged on the rear side part of the working panel, a press pull rod is arranged on the supporting panel, a press panel is arranged below the press pull rod, the press pull rod drives the press panel to move up and down, guide rods are respectively arranged on two sides of the press panel, the guide rods penetrate through the press panel, and a testing mechanism is further arranged on the supporting panel; a plurality of test probes are arranged on the press machine panel at intervals and are electrically connected with the test mechanism.
2. The circuit board low resistance testing device of claim 1, wherein: the utility model discloses a working panel, including working panel, working panel upper end rear portion, the extension line of first stopper and the extension line place direction mutually perpendicular setting of second stopper, working panel upper end rear portion is provided with first stopper, working panel one side is provided with the second stopper, the extension line of first stopper and the extension line place direction mutually perpendicular setting of second stopper.
3. The circuit board low resistance testing device according to claim 1 or 2, wherein: the testing mechanism is a four-wire tester.
4. The circuit board low resistance testing device of claim 3, wherein: the testing mechanism is provided with a current connecting wire and a voltage connecting wire, and the testing probe is electrically connected with the testing mechanism through the current connecting wire and the voltage connecting wire respectively.
5. The circuit board low resistance testing device according to claim 1 or 2, wherein: the working panel is provided with positioning foot posts which are respectively arranged at four corners of the working panel.
6. The circuit board low resistance testing device according to claim 1 or 2, wherein: the working panel is made of acrylic materials.
7. The circuit board low resistance testing device according to claim 1 or 2, wherein: the working panel is of a rectangular panel construction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920477818.0U CN210051825U (en) | 2019-04-10 | 2019-04-10 | Low resistance testing device for circuit board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920477818.0U CN210051825U (en) | 2019-04-10 | 2019-04-10 | Low resistance testing device for circuit board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210051825U true CN210051825U (en) | 2020-02-11 |
Family
ID=69378363
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920477818.0U Active CN210051825U (en) | 2019-04-10 | 2019-04-10 | Low resistance testing device for circuit board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210051825U (en) |
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2019
- 2019-04-10 CN CN201920477818.0U patent/CN210051825U/en active Active
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