Detection control circuit, equipment and system
By combining a self-locking module, a delay module, and an AC output module, the power supply is automatically controlled to turn on and off, solving the problems of cumbersome and inefficient existing detection methods and achieving efficient detection without manual operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-12
- Publication Date
- 2026-03-13
AI Technical Summary
Existing circuit board testing methods require manual power control, which makes the testing process cumbersome and inefficient, and there is a risk of forgetting to turn the power on or off.
The circuit uses a combination of self-locking module, delay module and AC output module to automatically control the power supply to turn on and off through signal triggering, simplifying the operation process.
It enables automatic detection without the need for manual power control, simplifies the detection process, improves detection efficiency, and avoids the risk of electric shock or instrument damage caused by forgetting to turn off the power.
Smart Images
Figure CN223993050U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of circuits, and more particularly to a detection and control circuit, device, and system. Background Technology
[0002] With societal development and the continuous emergence of various electronic products, circuit board testing has become an indispensable part of electronic product manufacturing. Taking the production of color televisions as an example, the three main components of a color television include the LCD screen, power board, and chassis board. During the manufacturing process, it is necessary to conduct power-on testing to ensure that various indicators and standard functions meet normal requirements. Current testing methods involve manual operation by personnel. For example, at the start of testing, the 220V AC power supply needs to be manually turned on, followed by a series of testing operations, and at the end, the 220V AC power supply needs to be manually turned off. However, with the increasing variety of circuit boards requiring testing... With the increasing number of tests, operators need to constantly turn the AC 220V power supply on and off manually. This arduous manual process, coupled with the fact that the 220V power supply is usually located near the power switch while the testing is performed on the testing instrument, makes it easy for operators to forget to turn it on, leading to testing failure, or forget to turn it off, resulting in electric shock or damage to the testing instrument. In short, the current testing method requires manual power control, resulting in a cumbersome process and low efficiency. Utility Model Content
[0003] To address the problems of cumbersome and inefficient detection processes caused by the need for manual power supply control in existing related technologies, this application provides a detection control circuit, device, and system.
[0004] In a first aspect, this application provides a detection and control circuit, including a self-locking module, a delay module, and an AC output module;
[0005] The execution signal output terminal of the self-locking module is electrically connected to the execution signal input terminal of the delay module, the working voltage output terminal of the self-locking module is electrically connected to the working voltage input terminal of the delay module, and the conduction signal output terminal of the delay module is electrically connected to the conduction signal input terminal of the AC output module.
[0006] The self-locking module is configured to receive a first trigger signal and output an execution signal to the delay module based on the first trigger signal; and to output a working voltage signal to the delay module based on a second trigger signal.
[0007] The delay module is used to control the pressure bar support plate to perform a preset operation through the execution signal, and to perform delay processing based on the working voltage signal to output a conduction signal; the preset operation is used to input the second trigger signal to the self-locking module;
[0008] The AC output module is used to perform conduction output based on the conduction signal and the AC input signal to obtain the target detection signal.
[0009] Optionally, it also includes a signal conversion module, wherein the control signal output terminal of the signal conversion module is electrically connected to the control signal input terminal of the self-locking module;
[0010] The signal conversion module is used to receive the detection completion signal and output a control signal to the self-locking module based on the detection completion signal.
[0011] The self-locking module is also used to stop outputting the working voltage signal according to the control signal, and output a third trigger signal to the delay module;
[0012] The delay module is also used to control the pressure bar support plate to perform a reset operation based on the third trigger signal.
[0013] Optionally, the delay module includes a first chip, a second chip, a first transistor, and a first relay;
[0014] The power supply voltage input pin of the first chip is electrically connected to the self-locking module, and the power supply voltage input pin of the first chip is used to receive the working voltage signal. The reset pin of the second chip is electrically connected to the self-locking module, and the reset pin of the second chip is used to receive the first trigger signal. The collector of the first transistor is electrically connected to the ground pin of the first chip. The base of the first transistor is electrically connected to the output pin of the first chip. The emitter of the first transistor is electrically connected to the first terminal of the first relay. The fourth terminal of the first relay is electrically connected to the AC output module, and the fourth terminal of the first relay is used to output the conduction signal to the AC output module.
[0015] Optionally, the self-locking module includes a first control switch, a second control switch, a first thyristor, a second thyristor, and a second relay;
[0016] The anode of the first thyristor is electrically connected to one end of the first control switch, the cathode of the first thyristor is electrically connected to the delay module, the cathode of the first thyristor is used to output the execution signal to the delay module, the gate of the first thyristor is electrically connected to the signal conversion module, the first terminal of the second relay is electrically connected to the cathode of the first thyristor, the fourth terminal of the second relay is electrically connected to the anode of the second thyristor, the cathode of the second thyristor is electrically connected to the delay module, the cathode of the second thyristor is used to output the working voltage signal to the delay module, the gate of the second thyristor is electrically connected to the second control switch, and the second control switch is used to input the second trigger signal.
[0017] Optionally, the AC output module includes a third relay and a fourth relay;
[0018] The second terminal of the third relay is electrically connected to the delay module and is used to receive the conduction signal. The second terminal of the fourth relay is electrically connected to the delay module and is used to receive the conduction signal. The third terminal of the third relay is electrically connected to the power input and is used to receive the AC input signal. The third terminal of the fourth relay is also electrically connected to the power input and is used to receive the AC input signal. The fourth terminals of the third and fourth relays are used to output the target detection signal.
[0019] Optionally, the signal conversion module includes a third chip and a fourth chip;
[0020] The first end of the third chip is used to receive the detection completion signal, the second end of the third chip is electrically connected to the first end of the fourth chip, the third end of the third chip is electrically connected to the self-locking module, and the third end of the third chip is used to output the control signal to the self-locking module.
[0021] Optionally, it also includes a solenoid valve, the control terminal of which is electrically connected to the delay module;
[0022] The delay module is used to output a control command signal to the solenoid valve based on the execution signal;
[0023] The solenoid valve is used to control the pressure bar support plate to perform the preset operation according to the control command signal.
[0024] In a second aspect, this application provides a detection and control device, including a base plate support, a pressure bar support plate, and a detection and control circuit as described in any of the first aspects above; one end of the base plate support is connected to the pressure bar support plate, the detection and control circuit is electrically connected to the base plate support and the pressure bar support plate, and the base plate support includes a first trigger switch and a second trigger switch;
[0025] The first trigger switch is used to output a first trigger signal to the self-locking module;
[0026] The second trigger switch is used to output a second trigger signal to the self-locking module.
[0027] Optionally, the base plate bracket further includes a third trigger switch, which is electrically connected to the self-locking module;
[0028] The third trigger switch is used to output a control signal to the self-locking module;
[0029] The self-locking module is used to stop outputting the working voltage signal according to the control signal, and output a third trigger signal to the delay module;
[0030] The delay module is used to control the pressure bar support plate to perform a reset operation based on the third trigger signal.
[0031] Thirdly, a detection and control system is provided, characterized in that it includes any of the detection and control devices described in the second aspect above.
[0032] The detection control circuit provided in this application includes a self-locking module, a delay module, and an AC output module. The execution signal output terminal of the self-locking module is electrically connected to the execution signal input terminal of the delay module, the working voltage output terminal of the self-locking module is electrically connected to the working voltage input terminal of the delay module, and the conduction signal output terminal of the delay module is electrically connected to the conduction signal input terminal of the AC output module. The self-locking module receives a first trigger signal and outputs an execution signal to the delay module based on the first trigger signal. It also outputs a working voltage signal to the delay module based on a second trigger signal. The delay module controls the pressure bar support to perform a preset operation via the execution signal and performs delay processing based on the working voltage signal to output a conduction signal. The preset operation is used to input the second trigger signal to the self-locking module. The AC output module performs conduction output based on the conduction signal and the AC input signal to obtain a target detection signal. Therefore, without manual power supply control, the target detection signal can be directly output through the AC output module for detection, solving the problems of cumbersome detection processes and low detection efficiency in existing related technologies that require manual power supply control. This effectively simplifies the detection process and improves detection efficiency. Attached Figure Description
[0033] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.
[0034] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0035] Figure 1 This is a schematic diagram of the structure of a detection control circuit provided in an embodiment of this application;
[0036] Figure 2 A schematic diagram of a detection control circuit provided in another embodiment of this application;
[0037] Figure 3 A circuit schematic diagram of a detection control circuit provided in an embodiment of this application;
[0038] Figure 4 This is a schematic diagram of the structure of a detection and control device provided in an embodiment of this application.
[0039] Attached image labels:
[0040] 10. Detection and control circuit; 11. Self-locking module; 12. Delay module; 13. AC output module; 14. Signal conversion module; 101. First trigger switch; 102. Third trigger switch; 103. Base plate bracket; 104. Board test frame; 105. Board test needle bed; 106. Second trigger switch; 107. Pressure bar; 108. Pressure bar support plate; 109. Cylinder inlet; 110. Cylinder outlet; 111. Dual-axis telescopic cylinder. Detailed Implementation
[0041] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0042] Figure 1 This is a schematic flowchart of a detection control circuit 10 provided in an embodiment of this application.
[0043] like Figure 1As shown in the illustration, this application discloses an embodiment of a detection control circuit 10, which may include a self-locking module 11, a delay module 12, and an AC output module 13. The execution signal output terminal of the self-locking module 11 is electrically connected to the execution signal input terminal of the delay module 12, the working voltage output terminal of the self-locking module 11 is electrically connected to the working voltage input terminal of the delay module 12, and the conduction signal output terminal of the delay module 12 is electrically connected to the conduction signal input terminal of the AC output module 13. The self-locking module 11 receives a first trigger signal and outputs an execution signal to the delay module 12 according to the first trigger signal; and outputs a working voltage signal to the delay module 12 according to a second trigger signal. The delay module 12 controls the pressure bar support to perform a preset operation through the execution signal, and performs delay processing based on the working voltage signal to output a conduction signal. The preset operation is used to input the second trigger signal to the self-locking module 11. The AC output module 13 is used to conduct an output based on the conduction signal and the AC input signal to obtain a target detection signal.
[0044] It should be noted that in this embodiment, during the process of the delay module 12 controlling the pressure bar support plate to perform a preset operation through the execution signal, it can output a control command to the pressure bar support plate, causing the pressure bar support plate to perform the preset operation. This preset operation can be a movement operation, for example, the preset operation indicates that the pressure bar support plate moves from position A to position B, and triggers the generation of a second trigger signal input to the self-locking module 11 at position B. This triggering method can be triggered by the pressure bar support plate being pressed by a preset trigger button configured at position B, or by the pressure bar support plate being triggered by a preset inductor device configured at position B, etc. Of course, the above is only an example, and this embodiment does not specifically limit it.
[0045] Specifically, at the start of the detection, a first trigger signal can be input to the self-locking module 11. Upon receiving the first trigger signal, the self-locking module 11 outputs an execution signal to the delay module 12. The delay module 12 can then control the pressure bar support plate to perform a preset operation via the execution signal. The preset operation is used to input a second trigger signal to the self-locking module 11, so that the self-locking module 11 can output a working voltage signal to the delay module 12 based on the second trigger signal. The delay module 12 can then perform delay processing based on the working voltage signal and output a conduction signal to the AC output module 13. The AC output module 13 conducts an output based on the conduction signal and the AC input signal to obtain the target detection signal. The target detection signal can be the power supply required for the detection to start, such as a 220V AC power supply, a 110V AC power supply, a DC power supply, etc. This embodiment does not specifically limit this.
[0046] In addition, the first trigger signal in this embodiment can be a signal output by the detection device or a button signal, etc. This embodiment does not specifically limit it. It can be seen that the first trigger signal in this embodiment can output the target detection signal required to start the detection, so that the operator does not need to manually operate at the power supply position. It can be controlled directly in the detection device or controlled by a button configured in a position that is easy for the operator to press, thereby simplifying the detection process and improving detection efficiency.
[0047] like Figure 2 As shown, in an optional embodiment of this application, the detection control circuit 10 may further include a signal conversion module 14, wherein the control signal output terminal of the signal conversion module 14 is electrically connected to the control signal input terminal of the self-locking module 11.
[0048] The signal conversion module 14 is used to receive the detection completion signal and output a control signal to the self-locking module 11 based on the detection completion signal;
[0049] The self-locking module 11 is also used to stop outputting the working voltage signal according to the control signal and output a third trigger signal to the delay module 12;
[0050] The delay module 12 is also used to control the pressure bar support plate to perform a reset operation based on the third trigger signal.
[0051] In this embodiment, after the inspection is completed, a detection completion signal can be input to the signal conversion module 14. Upon receiving the detection completion signal, the signal conversion module 14 outputs a control signal to the self-locking module 11. The self-locking module 11 can stop outputting the working voltage signal according to the control signal and output a third trigger signal to the delay module 12. The delay module 12 can then control the pressure bar support plate to perform a reset operation according to the third trigger signal. This reset operation can restore the pressure bar support plate to the position before the preset operation, so that the preset operation can be performed again when the inspection is performed again.
[0052] It should be noted that after the self-locking module 11 stops outputting the working voltage signal according to the control signal, the delay module 12 stops outputting the conduction signal. At this time, the AC output module 13 also stops outputting the target inspection signal. That is, the power supply can be stopped directly after the test is completed. This solves the problem that in the existing related technologies, operators need to turn off the test power supply, which is prone to the risk of electric shock or damage to the test instrument due to negligence in turning off the AC 220V power supply. It also solves the problem that the existing method of manual testing by operators is cumbersome and inefficient. Thus, it can simplify the testing process and improve the testing efficiency.
[0053] In addition, the detection completion signal in this embodiment can be generated directly by the detection device and output to the signal conversion module 14 when the detection is completed, or it can be input by the operator by key or operation according to the needs. This embodiment does not make specific limitations on this.
[0054] like Figure 3 As shown, in an optional embodiment of this application, the delay module 12 may include a first chip U1, a second chip U2, a first transistor Q3, and a first relay KD1;
[0055] The power supply voltage input pin of the first chip U1 is electrically connected to the self-locking module 11. The power supply voltage input pin of the first chip U1 is used to receive the working voltage signal. The reset pin of the second chip U2 is electrically connected to the self-locking module 11. The reset pin of the second chip U2 is used to receive the first trigger signal. The collector of the first transistor Q3 is electrically connected to the ground pin of the first chip U1. The base of the first transistor Q3 is electrically connected to the output pin of the first chip U1. The emitter of the first transistor Q3 is electrically connected to the first terminal of the first relay KD1. The fourth terminal of the first relay KD1 is electrically connected to the AC output module 13. The fourth terminal of the first relay KD1 is used to output a conduction signal to the AC output module 13.
[0056] In this embodiment, when the reset pin of the second chip U2 receives the first trigger signal, the output pin of the second chip U2 outputs a control command signal to the solenoid valve, causing the solenoid valve to control the pressure bar support to perform a preset operation according to the control command signal. When the power supply voltage input pin of the first chip U1 receives the working voltage signal, the first chip U1 operates in a monostable state and, after a preset delay, outputs a high-level signal to the first transistor Q3 through its output pin, causing the first transistor Q3 to conduct. After the first transistor Q3 conducts, it can control the first relay KD1 to close. The closing of the first relay KD1 can output a conduction signal to the AC output module 13 through the fourth terminal of the first relay KD1. In addition, in this embodiment, both the first chip U1 and the second chip U2 can be ME555 chips.
[0057] It should be noted that the delay module 12 in this embodiment may also include a first potentiometer RP1. One end of the first potentiometer RP1 is electrically connected to the second pin, i.e. the trigger pin, of the first chip U1, and the other end of the first potentiometer RP1 is electrically connected to the AC output module 13. During the process of the first chip U1 delaying for a preset time to output a high-level signal to the first transistor Q3, the specific preset delay time can be controlled by adjusting the first potentiometer RP1.
[0058] like Figure 3As shown, in an optional embodiment of this application, the self-locking module 11 includes a first control switch SW1, a second control switch SW2, a first thyristor Q1, a second thyristor Q2, and a second relay KD2;
[0059] The anode of the first thyristor Q1 is electrically connected to one end of the first control switch SW1. The cathode of the first thyristor Q1 is electrically connected to the delay circuit. The cathode of the first thyristor Q1 is used to output an execution signal to the delay module 12. The gate of the first thyristor Q1 is electrically connected to the signal conversion module 14. The first end of the second relay KD2 is electrically connected to the cathode of the first thyristor Q1. The fourth end of the second relay KD2 is electrically connected to the anode of the second thyristor Q2. The cathode of the second thyristor Q2 is electrically connected to the delay module 12. The cathode of the second thyristor Q2 is used to output a working voltage signal to the delay module 12. The gate of the second thyristor Q2 is electrically connected to the second control switch SW2. The second control switch SW2 is used to input a second trigger signal.
[0060] In this embodiment, the cathode of the second thyristor Q2 is electrically connected to the power supply voltage input pin of the first chip U1 in the delay module 12, serving as the working voltage output terminal of the self-locking module 11. The power supply voltage input pin of the first chip U1 serves as the working voltage input terminal of the delay module 12. The cathode of the first thyristor Q1 is electrically connected to the reset pin of the second chip U2 in the delay module 12, serving as the execution signal output terminal of the self-locking module 11. The reset pin of the second chip U2 serves as the execution signal input terminal of the delay module 12. When the detection is activated, the first control switch SW1 can be switched from normally closed to normally open, thereby cutting off the power supply to the first thyristor Q1, making the first thyristor Q1 in a cutoff state. The cutoff state of the first thyristor Q1 will... When the power supply from the first thyristor Q1 to the second chip U2 in the delay circuit is cut off, that is, when the cathode of the first thyristor Q1 stops supplying power to the second chip U2 in the delay circuit, an execution signal is output to the delay circuit. Then, after the pressure bar plate performs a preset operation, the second control switch SW2 can be triggered to input a second trigger signal. Specifically, after the pressure bar plate performs the preset operation, it presses against the second control switch SW2, causing the second control switch SW2 to change from normally open to normally closed, thereby providing a trigger voltage to the gate of the second thyristor Q2, making the second thyristor Q2 conduct. After the second thyristor Q2 conducts, the working voltage signal can be output to the first chip U1 in the delay module 12 through the cathode of the second thyristor Q2.
[0061] like Figure 3 As shown, in an optional embodiment of this application, the AC output module 13 includes a third relay KD3 and a fourth relay KD4;
[0062] The second terminal of the third relay KD3 is electrically connected to the delay module 12, and the second terminal of the third relay KD3 is used to receive the conduction signal. The second terminal of the fourth relay KD4 is electrically connected to the delay module 12, and the second terminal of the fourth relay KD4 is used to receive the conduction signal. The third terminal of the third relay KD3 is electrically connected to the power input, and the third terminal of the third relay KD3 is used to receive the AC input signal. The third terminal of the fourth relay KD4 is electrically connected to the power input, and the third terminal of the fourth relay KD4 is used to receive the AC input signal. The fourth terminals of the third relay KD3 and the fourth terminal of the fourth relay KD4 are used to output the target detection signal.
[0063] In this embodiment, the second terminals of the third relay KD3 and the fourth relay KD4 serve as the conduction signal input terminals of the AC output module 13 and are electrically connected to the fourth terminal of the first relay KD1 in the delay module 12. The fourth terminal of the first relay KD1 serves as the conduction signal output terminal of the delay module 12. When the second terminals of the third relay KD3 and the fourth relay KD4 receive the conduction signal, the third relay KD3 and the fourth relay KD4 close. The closure of the third relay KD3 and the fourth relay KD4 can connect the AC power supply they are connected to, thereby receiving the AC input signal from the AC power supply. Based on the AC input signal, the target detection signal is output through the fourth terminals of the third relay KD3 and the fourth relay KD4. The specific output process can be that the AC input signal is directly output as the target detection signal, or the AC input signal can be rectified or boosted / pulled to obtain the target detection signal before output. This embodiment does not specifically limit this.
[0064] like Figure 3 As shown in an optional embodiment of this application, the signal conversion module 14 includes a third chip U3 and a fourth chip U4;
[0065] The first terminal of the third chip U3 is used to receive the detection completion signal. The second terminal of the third chip U3 is electrically connected to the first terminal of the fourth chip U4. The third terminal of the third chip U3 is electrically connected to the self-locking module 11. The third terminal of the third chip U3 is used to output control signals to the self-locking module 11.
[0066] In this embodiment, the first end of the third chip U3 is the first pin and the second pin of the third chip U3, the second end of the third chip U3 is the third pin of the third chip U3, the third end of the third chip U3 is the fourth pin of the third chip U3, the first end of the fourth chip U4 is the third pin of the fourth chip, which is also the output pin, the first pin of the fourth chip U4 is the power input pin, and the second pin of the fourth chip U4 is the ground pin. When testing, the third end of the third chip U3 is used as the control signal output terminal of the signal conversion module 14 and is electrically connected to the gate of the first thyristor Q1 in the self-locking module 11. When the test is completed, the test completion signal can be received through the first end of the third chip U3. The first end of the third chip U3 includes the first pin and the second pin of the third chip U3. When the test completion signal is received at the first end of the third chip U3, the third chip U3 is turned on momentarily and outputs a control signal to the self-locking module 11 through the third end of the third chip U3. That is, the first thyristor Q1 is turned on by the control signal, so that the first thyristor Q1 can be turned off at the beginning of the test and turn on again after the test is completed.
[0067] It should be noted that the self-locking circuit in this embodiment may further include a third control switch SW3. One end of the third control switch SW3 is electrically connected to one end of the first control switch SW1, and the other end of the third control switch SW3 is electrically connected to the gate of the first thyristor Q1. In specific implementations, the conduction of the third control switch SW3 can also output a control signal to the gate of the first thyristor Q1 to trigger the first thyristor Q1 to conduct. Furthermore, the third chip in this embodiment can be an H21A3 chip, and the fourth chip can be an L7805 chip.
[0068] like Figure 3 As shown, in an optional embodiment of this application, the detection control circuit 10 may further include a solenoid valve X1, the control terminal of which is electrically connected to the delay module 12.
[0069] Delay module 12 is used to output control command signal to solenoid valve X1 based on the execution signal;
[0070] Solenoid valve X1 is used to control the pressure bar support plate to perform preset operations according to the control command signal.
[0071] In this embodiment, the output pin of the second chip U2 in the delay module 12, namely the OUT pin, is electrically connected to the control terminal of the solenoid valve X1. The delay module 12 outputs a control command signal to the solenoid valve X1 according to the execution signal. After receiving the control command signal, the solenoid valve X1 can control the pressure bar support to perform a preset operation, such as controlling the pressure bar support to descend.
[0072] In an optional embodiment of this application, the detection control circuit 10 may further include a power supply module, which includes a rectifier bridge. The first and third pins of the rectifier bridge are electrically connected to an AC power source, the second pin of the rectifier bridge serves as a circuit power supply pin to power the detection control circuit 10, and the fourth pin of the rectifier bridge is grounded.
[0073] like Figure 4 As shown, this application also discloses an embodiment, which provides a detection control device, including a base plate support 103, a pressure bar support plate 108, and the test control circuit described in any of the foregoing embodiments; one end of the base plate support 103 is connected to the pressure bar support plate 108, and the test control circuit is electrically connected to the base plate support 103 and the pressure bar support plate 108; the base plate support 103 includes a first trigger switch 101 and a second trigger switch 106.
[0074] The first trigger switch 101 is used to output a first trigger signal to the self-locking module 11;
[0075] The second trigger switch 106 is used to output a second trigger signal to the self-locking module 11.
[0076] In this embodiment, the first trigger switch 101 is electrically connected to the self-locking module 11 and is used to output a first trigger signal to the self-locking module 11. Specifically, the first trigger switch 101 can be electrically connected to the first control switch SW1 in the self-locking module 11. The second trigger switch is electrically connected to the self-locking module 11 and is used to output a second trigger signal to the self-locking module 11. Specifically, the second trigger switch 106 can be electrically connected to the second control switch SW2 in the self-locking module 11.
[0077] It should be noted that the detection control device in this embodiment may also include a board test probe bed 105. The board test probe bed 105 is mounted on the base plate bracket 103. During specific testing, the circuit board to be tested can be placed in a fixed position on the base plate bracket 103, and then the first trigger switch 101 is pressed. The first trigger switch 101 and the first control switch SW1 are linked to output a first trigger signal to the self-locking module 11. Through the control of the detection control device, the pressure bar support plate 108 performs a preset operation, that is, the pressure bar support plate 108 can move downward. After the pressure bar support plate 108 can move downward, it can contact the second trigger switch 106, that is, trigger the second trigger switch 106, so that the second trigger switch and the second control switch SW2 are linked to output a second trigger signal to the self-locking module 11.
[0078] In this embodiment, the base plate support 103 can be an L-shaped base plate support 103, the pressure bar support plate 108 is installed parallel to one side of the L-shaped base plate support 103, and the second trigger switch 106 is installed on the other side of the L-shaped base plate support 103, so that the pressure bar support plate 108 can contact the second trigger switch 106 when it moves downward.
[0079] In an optional embodiment of this application, the base plate support 103 may further include a third trigger switch 102, which is electrically connected to the self-locking module 11.
[0080] The third trigger switch 102 is used to output a control signal to the self-locking module 11;
[0081] The self-locking module 11 is used to stop outputting the working voltage signal according to the control signal and output a third trigger signal to the delay module 12;
[0082] The delay module 12 is used to control the pressure bar support plate 108 to perform a reset operation based on the third trigger signal.
[0083] In this embodiment, when the inspection is completed, the third trigger switch 102 can be pressed, so that the third trigger switch 102 outputs a control signal to the self-locking module 11. The self-locking module 11 then stops outputting the working voltage signal according to the control signal and outputs the third trigger signal to the delay module 12. The delay module 12 controls the pressure bar support plate 108 to perform a reset operation according to the third trigger signal. The reset operation can restore the pressure bar support plate 108 to the position before the preset operation, so that the preset operation can be performed again when the inspection is performed again.
[0084] It should be noted that the third trigger switch 102 can be electrically connected to the third control switch SW3 in the self-locking circuit. That is, the third control switch SW3 can be turned on by the third trigger switch 102, thereby outputting a control signal to the gate of the first thyristor Q1 to trigger the first thyristor Q1 to turn on.
[0085] It should be noted that the detection and control device in this embodiment may further include a circuit board test frame 104, a pressure bar 107, a cylinder inlet 109, a cylinder outlet 110, and a dual-axis telescopic cylinder 111; one side of the circuit board test frame 104 is connected to the base plate bracket 103, and the other side of the circuit board test frame 104 is connected to the circuit board test needle bed 105; the pressure bar 107 is installed on the side of the pressure bar support plate 108 near the circuit board test needle bed 105; the output end of the dual-axis telescopic cylinder 111 is connected to the pressure bar support plate 108. The plate 108 is connected so that the dual-axis telescopic cylinder 111 can drive the pressure bar support plate 108 to move. The cylinder inlet 109 and the cylinder outlet 110 are the inlet structures of the dual-axis telescopic cylinder 111 for air intake and exhaust. Specifically, the input end of the dual-axis telescopic cylinder 111 can be electrically connected to the delay module 12. The delay module 12 controls the operation of the dual-axis telescopic cylinder 111 according to the execution signal. The operation of the dual-axis telescopic cylinder 111 can control the pressure bar support plate 108 to perform preset operations.
[0086] This application also discloses an embodiment that provides a detection and control system, including the detection and control device described in any of the foregoing embodiments.
[0087] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0088] The foregoing has described specific embodiments of the embodiments described in this specification. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recited in the claims may be performed in a different order than that shown in the embodiments and may still achieve the desired result. Furthermore, the processes depicted in the drawings do not necessarily require the specific or sequential order shown to achieve the desired result. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.
[0089] The above description is merely a specific embodiment of the present invention, enabling those skilled in the art to understand or implement the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.
Claims
1. A detection control circuit, characterized by, The self-locking module, the delay module and the alternating current output module are connected in series. The execution signal output end of the self-locking module is electrically connected with the execution signal input end of the delay module, the working voltage output end of the self-locking module is electrically connected with the working voltage input end of the delay module, and the conduction signal output end of the delay module is electrically connected with the conduction signal input end of the alternating current output module. The self-locking module is used for receiving a first trigger signal and outputting an execution signal to the delay module according to the first trigger signal. The delay module is used for controlling a plunger holder to perform a preset operation through the execution signal and performing delay processing based on the working voltage signal to output a conduction signal. The alternating current output module is used for performing conduction output according to the conduction signal and an alternating current input signal to obtain a target detection signal. The signal conversion module is further connected with the self-locking module.
2. The detection control circuit of claim 1, wherein, The signal conversion module is used for receiving a detection completion signal and outputting a control signal to the self-locking module according to the detection completion signal. The self-locking module is further used for stopping outputting the working voltage signal according to the control signal and outputting a third trigger signal to the delay module. The delay module is further used for controlling the plunger holder to perform a reset operation according to the third trigger signal. The delay module comprises a first chip, a second chip, a first triode and a first relay.
3. The detection control circuit of claim 1, wherein, The power voltage input pin of the first chip is electrically connected with the self-locking module and is used for receiving the working voltage signal, the reset pin of the second chip is electrically connected with the self-locking module and is used for receiving the first trigger signal, the collector of the first triode is electrically connected with the ground pin of the first chip, the base of the first triode is electrically connected with the output pin of the first chip, the emitter of the first triode is electrically connected with the first end of the first relay, the fourth end of the first relay is electrically connected with the alternating current output module and is used for outputting the conduction signal to the alternating current output module. The self-locking module comprises a first control switch, a second control switch, a first thyristor, a second thyristor and a second relay.
4. The detection control circuit of claim 1, wherein, An anode of the first thyristor is electrically connected with one end of the first control switch, a cathode of the first thyristor is electrically connected with the delay module, the cathode of the first thyristor is used for outputting the execution signal to the delay module, a gate of the first thyristor is electrically connected with the signal conversion module, a first end of the second relay is electrically connected with the cathode of the first thyristor, a fourth end of the second relay is electrically connected with an anode of the second thyristor, a cathode of the second thyristor is electrically connected with the delay module, the cathode of the second thyristor is used for outputting the working voltage signal to the delay module, a gate of the second thyristor is electrically connected with the second control switch, and the second control switch is used for inputting the second trigger signal.
5. The detection control circuit of claim 1, wherein, The AC output module comprises a third relay and a fourth relay; A second end of the third relay is electrically connected with the delay module, the second end of the third relay is used for receiving the conduction signal, a second end of the fourth relay is electrically connected with the delay module, the second end of the fourth relay is used for receiving the conduction signal, a third end of the third relay is electrically connected with a power input, the third end of the third relay is used for receiving an AC input signal, a third end of the fourth relay is electrically connected with the power input, the third end of the fourth relay is used for receiving the AC input signal, a fourth end of the third relay is electrically connected with a fourth end of the fourth relay, and the fourth end of the third relay is used for outputting the target detection signal.
6. The detection control circuit of claim 2, wherein, The signal conversion module comprises a third chip and a fourth chip; A first end of the third chip is used for receiving the detection completion signal, a second end of the third chip is electrically connected with a first end of the fourth chip, a third end of the third chip is electrically connected with the self-locking module, and the third end of the third chip is used for outputting the control signal to the self-locking module.
7. The detection control circuit of claim 1, wherein, Further comprising a solenoid valve, a control end of the solenoid valve is electrically connected with the delay module; The delay module is used for outputting a control instruction signal to the solenoid valve according to the execution signal; The solenoid valve is used for controlling the pressure rod supporting plate to perform the preset operation according to the control instruction signal.
8. A detection control device characterized by comprising: The bottom plate support, the pressure rod supporting plate and the detection control circuit of any one of claims 1-7 are comprised; one end of the bottom plate support is connected with the pressure rod supporting plate, the detection control circuit is electrically connected with the bottom plate support and the pressure rod supporting plate, and the bottom plate support comprises a first trigger switch and a second trigger switch. The first trigger switch is used for outputting a first trigger signal to the self-locking module. The second trigger switch is used for outputting a second trigger signal to the self-locking module.
9. The detection control device according to claim 8, characterized by The bottom plate support further comprises a third trigger switch, and the third trigger switch is electrically connected with the self-locking module. The third trigger switch is used for outputting a control signal to the self-locking module. The self-locking module is used for stopping outputting the working voltage signal and outputting a third trigger signal to the delay module according to the control signal. The delay module is used for controlling the pressure rod supporting plate to perform a reset operation according to the third trigger signal.
10. A detection control system characterized by comprising: The detection control device according to any one of claims 8 to 9.