Novel control acquisition board device

Abstract

The utility model belongs to the technical field of electronic equipment, including control collection board body, adhesive tape, pressure resistance, still have first detection circuit, second detection circuit, prompt circuit, two adhesive tapes are installed respectively in the lower part of the front and rear end of control collection board body, two pressure resistances are fixedly installed in two holes of one rubber strip, first detection circuit, second detection circuit, prompt circuit are fixedly installed on control collection board body and are electrically connected, after the contact of the lower end of the control collection board body is inserted into the slot, can prevent the dust of outside and so on into the slot, lead to the problem of control collection board body contact and the poor contact of the elastic contact piece in the slot, still can in real time monitoring control collection board body and the degree of combination of slot in the work, when control collection board body and slot separate, can first time prompt relevant personnel to maintain, as far as possible guarantee the stable and reliable work of the production equipment of application control collection board body.

Description

Technical Field

[0001] This utility model relates to the field of electronic equipment technology, and in particular to a novel control acquisition board device. Background Technology

[0002] A control and acquisition board is a circuit board that combines control and data acquisition functions. Its main functions include: equipment control: controlling the switching, speed, and other parameters of electrical equipment (such as motors) through an interface, supporting applications in smart homes, industrial automation, and other fields; data acquisition: collecting environmental data (such as temperature, humidity, current, etc.) through sensors and transmitting the collected information to the main control system for further processing or remote monitoring; real-time monitoring and processing: monitoring circuit parameters (such as voltage and current) in real time, performing filtering, averaging, and other processing on the data, and transmitting it to other devices through communication interfaces (such as serial ports and network ports).

[0003] In many devices, for ease of maintenance and installation, and to save costs (for example, if the control acquisition board is damaged, only the damaged control acquisition board needs to be replaced, avoiding the increased cost of replacing the entire control acquisition board and the main control system circuit board which are fixed together), the control acquisition board (hereinafter referred to as the board) and the main control system circuit board of the device are connected by a plug-in method. Specifically, multiple horizontally distributed contacts at the bottom of the board are inserted into the slots (with DC 12V power output terminals) of the main control system circuit board. Thus, the board (obtaining 12V DC power through the slot) can achieve signal interaction with the main control system circuit board. Although existing boards meet practical needs to some extent by plugging in the slot with their bottom contacts, their structural limitations are also obvious. Specifically, after the bottom contacts of the board are inserted into the slot, the upper sides of the slot are open to the outside, allowing external dust and other contaminants to enter the slot, causing poor contact between the board contacts and the elastic spring contacts in the slot. This, in turn, adversely affects the signal interaction between the board and the main control system circuit board. Furthermore, when maintaining or replacing circuit boards, if the staff fails to insert the boards into their slots properly, or if the boards and slots become displaced due to prolonged use (for example, if the boards and main control system circuit boards are installed inside the production equipment's chassis, the equipment will vibrate during operation, causing the boards to loosen), the relevant management personnel will not receive any notification and will not be able to perform the necessary maintenance in a timely manner, which will adversely affect the normal production of the equipment. Utility Model Content

[0004] To overcome the shortcomings of existing slot insertion mechanisms for control acquisition boards and main control system circuit boards, which are limited by their structure and have drawbacks as described in the background art, this utility model provides a new type of control acquisition board device. Based on the control acquisition board body, under the action of a related mechanism, after the contacts at the lower end of the control acquisition board body are inserted into the slot, they can seal both ends of the slot, preventing external dust and other contaminants from entering the slot and causing poor contact between the control acquisition board body contacts and the elastic contact pieces inside the slot. Furthermore, it can monitor the degree of connection between the control acquisition board body and the slot in real time during operation, and can immediately alert relevant personnel for maintenance when the control acquisition board body and the slot separate. This ensures the stable and reliable operation of production equipment using the control acquisition board body.

[0005] The technical solution adopted by this utility model to solve its technical problem is: A novel control acquisition board device includes a control acquisition board body, adhesive strips, pressure resistors, and also has a first detection circuit, a second detection circuit, and a prompting circuit. There are at least two adhesive strips, which are laterally distributed and fixedly installed on the lower front and rear ends of the control acquisition board body, located above the contacts of the control acquisition board body. There are at least two pressure resistors, with openings on the left and right sides of one of the adhesive strips on the control acquisition board body, and the two pressure resistors are fixedly installed in the two openings of one of the adhesive strips. The first detection circuit, the second detection circuit, and the prompting circuit are fixedly installed on the control acquisition board body. The power input terminals of the first detection circuit, the second detection circuit, and the prompting circuit are electrically connected to the power terminals on the control acquisition board body. The signal output terminal of the first detection circuit is electrically connected to the signal input terminal of the second detection circuit, and the signal output terminal of the second detection circuit is electrically connected to the signal input terminal of the prompting circuit. The terminals of the two pressure resistors are electrically connected in series between multiple signal input terminals of the first detection circuit.

[0006] Furthermore, the lateral length of the adhesive strip is greater than the lateral length of the contacts of the control acquisition board body and the slot of the main control system circuit board.

[0007] Furthermore, after the control acquisition board body is inserted into the slot, the lower ends of the two adhesive strips and the front and rear sides of the upper outer end of the slot make contact respectively.

[0008] Furthermore, the first detection circuit includes an electrically connected resistor and a transistor. One end of the first resistor is connected to one end of the second resistor, the other end of the second resistor is connected to the base of the first transistor, the other end of the first resistor is connected to the emitter of the first transistor, the collector of the first transistor is connected to one end of the third resistor and the emitter of the second transistor, the other end of the third resistor is connected to one end of the fourth resistor, and the other end of the fourth resistor is connected to the base of the second transistor.

[0009] Furthermore, the second detection circuit includes an electrically connected resistor and a transistor. One end of the first resistor is connected to one end of the second resistor, the other end of the first resistor is connected to the base of the transistor, the emitter of the transistor is connected to one end of the third resistor, and the other end of the second resistor is connected to the collector of the transistor.

[0010] Furthermore, the prompting circuit includes a resistor and a light-emitting diode and a transistor that are electrically connected, with the negative terminal of the light-emitting diode connected to the collector of the transistor, and the positive terminal of the light-emitting diode connected to one end of the resistor.

[0011] Compared with the prior art, the technical effects of this utility model are: (1): Based on the control acquisition board body, after the contact at the lower end of the control acquisition board body is inserted into the slot, the two rubber strips can seal the two ends of the slot, preventing external dust and other particles from entering the slot and causing poor contact between the control acquisition board body contact and the elastic contact piece in the slot; (2): The first detection circuit, the second detection circuit, and the prompting circuit work together with the two pressure resistors to monitor the degree of connection between the control acquisition board body and the slot in real time during operation. When the control acquisition board body and the slot are separated, the LED can light up to prompt relevant personnel to carry out maintenance, ensuring the stable and reliable operation of the production equipment using the control acquisition board body. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0013] Figure 2 This is a partial structural diagram of the rubber strip of this utility model.

[0014] Figure 3 This is the circuit diagram of this utility model. Detailed Implementation

[0015] Figure 1 , 2 As shown in Figure 3, the novel control acquisition board device includes a control acquisition board body 1, rubber strips 2, pressure resistors RT1 and RT2, and also has a first detection circuit 3, a second detection circuit 4, and a prompting circuit 5. There are two identical rubber strips 2, which are laterally distributed and fixedly installed on the lower front and rear ends of the control acquisition board body 1 with insulating adhesive, and located above the contacts of the control acquisition board body 1. There are two pressure resistors RT1 and RT2. One rubber strip 2 at the front end of the control acquisition board body 1 has a rectangular opening on the middle of its left and right sides. The two pressure resistors RT1 and RT2 are tightly fitted and fixedly installed in the two openings of the front rubber strip, with the force-bearing surfaces of the pressure resistors RT1 and RT2 located on the lower side. The first detection circuit 3, the second detection circuit 4, and the prompting circuit 5 are soldered to the upper middle part of the control acquisition board body 1 in an empty position.

[0016] Figure 1 , 2 As shown in Figure 3, the lateral length of the rubber strip 2 is greater than the lateral length of the contact of the control acquisition board body 1 and the slot 6 of the main control system circuit board. After the control acquisition board body 1 is inserted into the slot 6, the lower ends of the two rubber strips 2 and the front and rear sides of the upper outer end of the slot 6 are sealed in contact respectively (the upward elastic force of the rubber strip is less than the clamping force of the elastic insertion spring of the slot on the control acquisition board body 1, so the compression of the rubber strip will not cause the control acquisition board body 1 to move upward and separate from the slot). The first detection circuit includes resistors R1, R2, R3, and R4, and transistors Q1 and Q2 connected via circuit board wiring. One end of the first resistor R1 is connected to one end of the second resistor R2. The other end of the second resistor R2 is connected to the base of the first transistor Q1. The other end of the first resistor R1 is connected to the emitter of the first transistor Q1. The collector of the first transistor Q1 is connected to one end of the third resistor R4 and the emitter of the second transistor Q2. The other end of the third resistor R4 is connected to one end of the fourth resistor R3. The other end of the fourth resistor R3 is connected to the base of the second transistor Q2. The second detection circuit includes resistors R5, R6, and R7, and transistor Q3 connected via circuit board wiring. One end of the first resistor R6 is connected to one end of the second resistor R7. The other end of the first resistor R6 is connected to the base of the transistor Q3. The emitter of the transistor Q3 is connected to one end of the third resistor R5. The other end of the second resistor R7 is connected to the collector of the transistor Q3. The prompting circuit includes a resistor R8, an LED L, and a transistor Q4 connected via circuit board wiring. The negative terminal of LED L is connected to the collector of transistor Q4, and the positive terminal of LED L is connected to one end of resistor R8. The emitting surface of LED L is located on the outside of the front end of the main control system chassis. The other end of the power input terminal resistor R1 of the first detection circuit, one end of the power input terminal resistor R6 of the second detection circuit, the other end of the power input terminal resistor R8 of the prompting circuit, the emitter of transistor Q4, and the 12V power supply terminal G on the control acquisition board are connected by wires. The collector of transistor Q2, the signal output terminal of the first detection circuit, and the other end of the signal input terminal resistor R5 of the second detection circuit are connected by wires. The collector of transistor Q3, the signal output terminal of the second detection circuit, and the base of transistor Q4, the signal input terminal of the prompting circuit, are connected by wires. The two terminals of pressure resistor RT1, one end of resistor R1, and the positive terminal of the 12V power supply are connected by wires. The two terminals of pressure resistor RT2, the other end of resistor R4, and the positive terminal of the 12V power supply are connected by wires.

[0017] Figure 1 , 2As shown in Figure 3, this novel design is based on a control acquisition board body 1. After the contacts at the lower end of the control acquisition board body 1 are inserted into the slot 6, the lower ends of the two rubber strips 2 seal the lower part of the control acquisition board body 1 and the upper end of the slot 6, thus sealing both ends of the slot 6. This minimizes the risk of external dust and other contaminants entering the slot 6 and causing poor contact between the contacts of the control acquisition board body 1 and the elastic contact pieces inside the slot 6. When a 12V power supply enters the power input terminals of the first detection circuit, the second detection circuit, and the indication circuit, the aforementioned circuits are powered on and begin operation. When the lower end of the control acquisition board 1 and the upper end of the slot 6 are in close contact, the two rubber strips 2 are compressed relatively tightly. This results in a relatively large pressure on the surfaces of the two pressure resistors RT1 and RT2, and a relatively small resistance value. Consequently, the voltage division between RT1 and RT2 and resistors R1 and R4 is relatively small. The 12V power supply, after voltage division by pressure resistors RT1 and R1, and current limiting by resistor R2, enters the base of transistor Q1, where the voltage is higher than 0.7V. Transistor Q1 conducts, and its collector outputs a low level, which enters the other end of resistor R4 and the emitter of transistor Q2, creating conditions for transistor Q2 to conduct. The 12V power supply, after voltage division by pressure resistors RT1 and R1, and current limiting by resistor R2, enters the base of transistor Q1, where the voltage is higher than 0.7V. Transistor Q1 conducts, and its collector outputs a low level, which enters the other end of resistor R4 and the emitter of transistor Q2. This creates conditions for transistor Q2 to conduct. Resistors RT2 and R4 divide the voltage, and resistor R3 reduces the voltage and limits the current, which enters the base of transistor Q2, making it higher than 0.7V. Transistor Q2 conducts, and the collector outputs a low level, which enters the other end of resistor R5. Then, the low level is reduced and limited by resistor R5, entering the emitter of transistor Q3, thus creating the conditions for transistor Q3 to conduct. After transistor Q3 conducts, the collector outputs a low level, which enters the base of transistor Q4. Transistor Q4 has no suitable forward bias voltage and is in the cutoff state. Therefore, LED L will not be energized and will not light up. This indicates that the lower end of the control acquisition board body 1 and the upper end of the slot 6 are sealed, and it is not necessary to reconnect the acquisition board body 1 and the slot 6. When the lower front or rear side of the control acquisition board body 1 is no longer in close contact with the upper end of the slot 6, the rubber strip at the front end compresses the adjustable resistor RT1 or RT2 relatively loosely. This results in a relatively small pressure on the force-bearing surface of the pressure resistor RT1 or RT2, a relatively large resistance value, and a relatively large voltage division with resistor R1 or R4. Alternatively, the 12V power supply, after being divided by the pressure resistor RT1 and resistor R1, and then reduced and current-limited by resistor R2, enters the base of transistor Q1 below 0.7V. As a result, transistor Q1 is cut off, and the collector no longer outputs a low level to the resistor. At the other end of R4, at the emitter of transistor Q2, transistor Q2 is no longer conducting. Therefore, transistor Q3 is also no longer conducting (there is no longer a low-level input to the emitter of transistor Q3, so transistor Q3 is no longer conducting), creating conditions for transistor Q4 to conduct. Alternatively, the 12V power supply is divided by the pressure resistor RT2 and resistor R4, and the voltage is reduced and current limited by resistor R3, entering the base of transistor Q2 below 0.7V. Transistor Q2 is cut off, and the collector no longer outputs a low level to the other end of resistor R5. Therefore, transistor Q3 is also no longer conducting, creating conditions for transistor Q4 to conduct.

[0018] Figure 1 , 2As shown in Figure 3, when the lower front or rear side of the control acquisition board body 1 is no longer in close contact with the upper end of the slot 6, and transistors Q2 or Q3 are no longer conducting, transistor Q3 will be cut off due to the lack of a suitable forward bias voltage at its base, and its collector will no longer output a low level. Transistor Q4, through resistor R7, obtains a suitable forward bias voltage from the positive terminal of the 12V power supply, and its collector outputs a low level, which enters the negative power input terminal of LED L. Therefore, LED L will be energized and illuminate to indicate to the user that the lower front or rear side of the control acquisition board body 1 is no longer in close contact with the upper end of the slot 6, and the acquisition board body 1 and slot 6 need to be reconnected. Through the above, this new invention can monitor the connection degree between the control acquisition board body and the slot in real time during operation. When the control acquisition board body and the slot separate slightly, the LED will illuminate immediately to prompt relevant personnel for maintenance, ensuring the stable and reliable operation of production equipment using the control acquisition board body as much as possible.

[0019] Figure 3 As shown, transistors Q1, Q2, Q3, and Q4 are NPN transistors of models 9014, 9014, 9014, and 9013, respectively; LED L is a red LED; pressure resistors RT1 and RT2 are high-precision pressure resistors of model IMS-C10A; the resistance values ​​of resistors R1, R2, R3, R4, R5, R6 (step-down current limiting), R7, and R8 (step-down current limiting) are 470Ω, 10K, 10K, 470Ω, 10K, 100K, 47K, and 1.8K, respectively.

[0020] Those skilled in the art should understand that although this specification describes embodiments, the embodiments do not necessarily contain only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in the embodiments can also be appropriately combined to form other embodiments that can be understood by those skilled in the art. Therefore, the scope of protection of this application is defined by the claims.

Claims

1. A novel control acquisition board device, comprising a control acquisition board body, an adhesive strip, and a pressure resistor, characterized in that, It also includes a first detection circuit, a second detection circuit, and a prompting circuit; there are at least two adhesive strips, which are laterally distributed and fixedly installed on the lower front and rear ends of the control acquisition board body, and located above the contacts of the control acquisition board body; there are at least two pressure resistors, with openings on the left and right sides of one of the adhesive strips of the control acquisition board body, and the two pressure resistors are fixedly installed in the two openings of one of the adhesive strips; the first detection circuit, the second detection circuit, and the prompting circuit are fixedly installed on the control acquisition board body, and the power input terminals of the first detection circuit, the second detection circuit, and the prompting circuit are electrically connected to the power terminals on the control acquisition board body, the signal output terminal of the first detection circuit is electrically connected to the signal input terminal of the second detection circuit, and the signal output terminal of the second detection circuit is electrically connected to the signal input terminal of the prompting circuit; the terminals of the two pressure resistors are electrically connected in series between multiple signal input terminals of the first detection circuit.

2. The novel control and acquisition board device according to claim 1, characterized in that, The lateral length of the adhesive strip is greater than the lateral length of the contacts on the control acquisition board and the slot of the main control system circuit board.

3. The novel control and acquisition board device according to claim 1, characterized in that, After the control acquisition board body is inserted into the slot, the lower ends of the two adhesive strips and the front and rear sides of the upper outer end of the slot make contact respectively.

4. The novel control and acquisition board device according to claim 1, characterized in that, The first detection circuit includes an electrically connected resistor and a transistor. One end of the first resistor is connected to one end of the second resistor, the other end of the second resistor is connected to the base of the first transistor, the other end of the first resistor is connected to the emitter of the first transistor, the collector of the first transistor is connected to one end of the third resistor and the emitter of the second transistor, the other end of the third resistor is connected to one end of the fourth resistor, and the other end of the fourth resistor is connected to the base of the second transistor.

5. The novel control and acquisition board device according to claim 1, characterized in that, The second detection circuit includes an electrically connected resistor and a transistor. One end of the first resistor is connected to one end of the second resistor, the other end of the first resistor is connected to the base of the transistor, the emitter of the transistor is connected to one end of the third resistor, and the other end of the second resistor is connected to the collector of the transistor.

6. The novel control acquisition board device according to claim 1, characterized in that, The prompting circuit includes an electrically connected resistor, a light-emitting diode (LED), and a transistor. The negative terminal of the LED is connected to the collector of the transistor, and the positive terminal of the LED is connected to one end of the resistor.

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