CN204925338U - Circuit board test equipment - Google Patents

Abstract

The utility model relates to a circuit board testing device which can automatically write codes, test and judge results automatically. A circuit board testing device provided by the utility model includes: a body and an electronic system arranged in the body, and the electronic system includes: a main control module, a detection module, a display module, a first connection module, a second connection module, and a main control module. The control terminals of the modules are respectively connected to the detection module and the second connection module, the output terminals of the detection modules are respectively connected to the main control module, the main control module is connected to the first connection module, and the detection terminals of the detection module and the output terminals of the second connection module are connected to the circuit board; the main control module controls the conduction of the second connection module, and the computer can program the code on the circuit board; the main control module controls the detection module to perform electrical tests such as voltage and current on the circuit board, and transmits the results to the computer after judging the information. Achieve automatic programming code, automatic detection, automatic judgment.

Description

A circuit board testing device

technical field

The utility model relates to the detection field, in particular to a circuit board testing device for automatic code programming, automatic testing, and automatic judgment of results.

Background technique

Printed Circuit Board (PCB for short), also known as circuit board, PCB board, aluminum substrate, high frequency board, ultra-thin circuit board, ultra-thin circuit board, printed (copper etching technology) circuit board, etc. The circuit board is mainly composed of pads, vias, mounting holes, wires, components, connectors, filling, electrical boundaries, etc. Common layer structures include single-layer board (SingleLayerPCB), double-layer board (DoubleLayerPCB) and multi-layer board (MultiLayerPCB).

In the prior art, when the circuit layout of the printed circuit board is completed, an electrical test needs to be performed on the circuit layout on the printed circuit board to verify that the circuit layout can provide normal electrical connections. In the current device for detecting circuit boards, the market instrument heads (voltage, current, temperature, power, etc.) all use AD chips plus dedicated digital processing ICs, and such digital processing ICs do not support external data output functions, but only Directly drive the LED segment code tube display, and the measurement data cannot support the data output function at the same time, which brings inconvenience to the current intelligent test. The test data can only be read manually and then manually input into the test system to achieve data processing and generate test reports. , as shown in Chinese utility model patent CN201210185984.

Utility model content

The problem to be solved by the utility model is to provide a circuit board testing device which can automatically write codes, test and judge results automatically.

In order to solve the above problems, a circuit board testing device provided by the utility model includes: a body, an electronic system disposed in the body, and the electronic system includes: a main control module, a detection module, a display module, a first connection module, The second connection module, the control terminal of the main control module is respectively connected to the detection module, and the second connection module controls its work, the detection terminal of the detection module detects the information of the circuit board and transmits it to the display module and the main control module respectively, and displays The module displays the information of the tested circuit board, the main control module processes the information and transmits the information to the computer through the first connection module, the computer is connected to the input end of the second connection module, and the output end of the second connection module is connected to the circuit board , the computer inputs information into the circuit board through the second connection module.

In a preferred solution of the present utility model, the body includes: a chassis, a loading platform arranged on the surface of the chassis, a support frame, an operating rod, a connecting rod, and a test board, the electronic system is arranged in the chassis, and the operation One end of the rod is pivotally connected to the support frame, one end of the connecting rod is pivotally connected to the operating rod, and the other end is connected to the test board. The test board moves toward the stage, and the detection pins are connected to the detection end of the detection module and the output end of the second connection module, and the detection pins are used to connect to the detection holes of the circuit board.

In another preferred solution of the utility model, the main control module is composed of a single-chip microcomputer and peripheral circuits.

In another preferred solution of the present utility model, the control terminal of the main control module includes a triode circuit and a relay switch circuit.

In another preferred solution of the present utility model, the detection module includes: a voltage detection module, a current detection module, and a noise detection module.

In another preferred solution of the present utility model, the display module includes: a voltage display module and a current display module.

In another preferred solution of the present utility model, the first connection module and the second connection module are both USB connection modules.

The technical solution provided by the utility model has the following beneficial effects:

Through the main control module to control the conduction of the second connection module, the computer can automatically program the code on the circuit board; the main control module controls the detection module to perform electrical tests such as voltage and current on the circuit board, and has an automatic test function; the detection module will detect information It is transmitted to the main control module, and the main control module judges the information and transmits the result to the computer, saving manual input and judgment and improving efficiency.

Description of drawings

Shown in Fig. 1 is the module block diagram of the present utility model;

Figure 2 is a schematic diagram of the appearance of the detection device provided by the utility model;

Shown in Fig. 3 is the schematic diagram of the circuit provided by the utility model (sub-figure one);

Shown in Fig. 4 is the schematic circuit diagram (sub-figure two) that the utility model provides;

Figure 5 shows a schematic diagram of the circuit provided by the utility model (sub-figure 3).

Detailed ways

In order to further illustrate various embodiments, the utility model provides accompanying drawings. These drawings are part of the disclosure content of the present invention, which are mainly used to illustrate the embodiments, and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should be able to understand other possible implementations and advantages of the present utility model. Components in the figures are not drawn to scale, and similar component symbols are generally used to denote similar components.

The utility model is further described now in conjunction with accompanying drawing and specific embodiment.

Referring to Figures 1 to 5, a preferred circuit board detection device provided by the present invention includes: a body 20, an electronic circuit 10, and the body includes: a chassis 201, a stage 202 located on the surface of the chassis 201 , support frame 206, operating rod 205, connecting rod 204, test board 203, one end of the operating rod 205 is pivotally connected to the support frame 206, one end of the connecting rod 204 is pivotally connected to the operating rod 205, and the other end is connected to the test board 203, The stage 202 is arranged under the test board 203, the test board 203 is provided with probe needles (not shown), the electronic circuit 10 is arranged in the case 201, and the electronic circuit 10 includes: a main control module 101, a detection module 104, and a display module 105 , the first connection module 102, the second connection module 103, the control terminal of the main control module 101 is respectively connected to the detection module 104, the second connection module 103, and the output terminal of the detection module 104 is respectively connected to the input of the main control module 101 and the display module 105 The output end of the main control module 101 is connected to the input end of the first connection module 102 , the detection end of the detection module 104 and the output end of the second connection module 103 are both connected to the detection pins of the test board 203 .

In this embodiment, both the first connection module 102 and the second connection module 103 are USB connection modules.

In this embodiment, the detection module 104 includes a voltage detection module, a current detection module, and a noise detection module.

In this embodiment, the display module 105 includes a voltage display module and a current display module.

In this embodiment, the main control module 101 is composed of a single chip microcomputer and peripheral circuits.

The working principle of this embodiment is as follows:

The detection device is connected to the power supply, and the computer is respectively connected to the output end of the first connection module 102 and the input end of the second connection module 103, and the circuit board to be tested is placed on the stage, and the operating rod 205 is rotated, and the operating rod 205 drives the test board 203 moves, and the detection needle of the test board 203 is connected to the detection hole of the circuit board. At this time, the main control module 101 is controlling the triode of the second connection module 103 to send a level signal, so that the corresponding relay switch circuit is opened, thereby leading Through the connection between the computer, the second connection module 103 and the circuit board, after the computer is connected to the circuit board, the code is programmed to the circuit board. After the computer completes the programming of the circuit board, the main control module 101 cuts off the second connection module 103 switch.

The main control module 101 sends a level signal to the triode of the voltage detection module of the control detection module 104, so that the corresponding relay switch circuit is turned on, and the voltage detection module circuit of the conduction detection module is turned on. The voltage detection module detects the voltage of the circuit board, and then The test results are transmitted to the voltage display module and the main control module 101 respectively, the voltage display module displays the test value, the main control module 101 makes a judgment after receiving it, and then transmits the information to the computer.

The current detection module detects the current in the same manner as the voltage detection module above. The current detection module of the detection module 104 detects the current and transmits it to the current display module of the display module 105 and the main control module 101, and the main control module 101 receives the current. Then make a judgment, and then transfer the information to the computer.

The noise detection method of the noise detection module is the same as that of the voltage detection module above, the only difference is that the noise detection module does not transmit the noise to the display module 105, but directly transmits it to the main control module 101, and then the main control module 101 After the judgment, it is transferred to the computer.

Control the conduction of the second connection module by the main control module 101, and the computer can automatically program the code on the circuit board; the main control module 101 controls the detection module 104 to perform electrical tests such as voltage and current on the circuit board, and has an automatic test function; the detection module 104 transmits the detection information to the main control module 101, and the main control module 101 judges the information and then transmits the result to the computer, thereby achieving automatic code programming, automatic testing, and automatic judgment of results, reducing manual input and judgment, and improving detection efficiency.

Although the utility model has been specifically shown and described in conjunction with preferred embodiments, those skilled in the art should understand that, without departing from the spirit and scope of the utility model defined by the appended claims, changes in form and details may be made. Making various changes to the utility model is within the protection scope of the utility model.

Claims (7)

1. a circuit board testing device, comprise: body, be located at the electronic system in body, it is characterized in that, described electronic system comprises: main control module, detection module, display module, first link block, second link block, the control end connection detection module respectively of described main control module, second link block controls its work, the information of the test side testing circuit plate of described detection module also transfers to display module and main control module respectively, the information of display module display institute slowdown monitoring circuit plate, the first link block is also passed through by information transmission in computing machine after control module process information, described computing machine connects the input end of the second link block, the output terminal connecting circuit board of the second link block, information is inputed in circuit board by the second link block by described computing machine.

2. circuit board testing device according to claim 1, it is characterized in that: described body comprises: cabinet, be located at the objective table on cabinet surface, bracing frame, control lever, connecting link, test board, described electronic system is located in machine box, described control lever one end is pivoted on bracing frame, one end of connecting link is pivoted on control lever, its other end connecting test plate, objective table is located at below test board, described control lever drives test board to move to objective table direction along when rotating with the tie point of bracing frame, described test board is provided with probe, the test side of described probe connection detection module and the output terminal of the second link block, described probe is used for the exploration hole of connecting circuit board.

3. circuit board testing device according to claim 1, is characterized in that: described main control module is made up of single-chip microcomputer and peripheral circuit.

4. circuit board testing device according to claim 1, is characterized in that: the control end of described main control module comprises transistor circuit and relay switching circuit.

5. circuit board testing device according to claim 1, is characterized in that: described detection module comprises: voltage detection module, current detection module, noise detection module.

6. circuit board testing device according to claim 1, is characterized in that: described display module comprises: voltage display module, electric current display module.

7. circuit board testing device according to claim 1, is characterized in that: described first link block, the second link block are USB link block.