CN209483588U - A kind of air pump test board - Google Patents

Abstract

The utility model discloses a kind of air pump test boards, including CPU, level shifting circuit, power circuit, key circuit, LCD display circuit, buzzer cue circuit, awaiting board card sensor acquisition signal input circuit and start and stop and the pwm signal output circuit for being connected to awaiting board card, the CPU is separately connected level shifting circuit, power circuit, key circuit, reset circuit, crystal oscillating circuit, LCD display circuit, buzzer cue circuit, awaiting board card sensor acquisition signal input circuit and start and stop and the pwm signal output circuit for being connected to awaiting board card, the utility model is based on IAP15W4K61S4 single-chip microcontroller, it can be realized the start and stop of control air pump, regulation and velocity measuring are shown.

Description

A kind of air pump test board

Technical field

The utility model relates to a kind of test board, specifically a kind of air pump test board.

Background technique

Air pump editor is for being evacuated or the device of compressed gas.Air exhauster is also in pumping, and compressor is also in pressurization. Also it is air pump.The working principle of air pump is: engine drives air pump crankshaft by two V-belts, so that piston be driven to be beaten Gas, the gas got import gas receiver by pipeline.Another aspect gas receiver is further through a gas pipeline by the gas in gas receiver Body imports in the pressure regulator valve being fixed on air pump, to control the air pressure in gas receiver.When the air pressure in gas receiver is not up to adjusted When the pressure that pressure valve is set up, the gas out of gas receiver into pressure regulator valve cannot open pressure regulator valve valve；When the gas in gas receiver When pressure reaches the pressure of pressure regulator valve setting, the gas out of gas receiver into pressure regulator valve opens pressure regulator valve valve, into air pump The air flue communicated with pressure regulator valve, and it is normally opened by the air inlet that air flue controls air pump, to make air pump running no load, reaches and subtract Few kinetic equation loss, protects the purpose of air pump.When the air pressure in gas receiver is lower than the pressure of pressure regulator valve setting because of loss, pressure regulation Valve in valve, by its return, disconnects the control gas circuit of air pump, air pump starts to inflate again by return spring.

Air pump needs to carry out it before use various functions test, test of the prior art without individually test air pump Plate.

Utility model content

The purpose of this utility model is to provide a kind of air pump test boards, to solve mentioned above in the background art ask Topic.

To achieve the above object, the utility model provides the following technical solutions:

A kind of air pump test board, including CPU, level shifting circuit, power circuit, key circuit, LCD display circuit, bee Ring device cue circuit, awaiting board card sensor acquisition signal input circuit and be connected to awaiting board card start and stop and pwm signal it is defeated Circuit out, the CPU are separately connected level shifting circuit, power circuit, key circuit, LCD display circuit, buzzer prompt electricity Road, awaiting board card sensor acquisition signal input circuit and the start and stop and the pwm signal output circuit that are connected to awaiting board card.

Further technical solution as the utility model: reset circuit and crystal oscillating circuit are also connected on the CPU.

Further technical solution as the utility model: the CPU uses IAP15W4K61S4 single-chip microcontroller.

Further technical solution as the utility model: it is carried out electrically between the CPU and awaiting board card by optocoupler Isolation.

Further technical solution as the utility model: the LCD display circuit is LCD1602 display.

Compared with prior art, the utility model has the beneficial effects that the utility model is based on IAP15W4K61S4 monolithic Machine, start and stop, regulation and the velocity measuring that can be realized control air pump are shown.

Detailed description of the invention

Fig. 1 is the block diagram of the utility model.

Fig. 2 is the circuit diagram of the utility model.

Fig. 3 is start and stop and pwm signal through light-coupled isolation output circuit figure.

Fig. 4 is test board start-up and shut-down control schematic diagram.

Fig. 5 is key circuit schematic diagram.

Fig. 6 is buzzer circuit schematic diagram.

Fig. 7 is input signal optocoupler isolation circuit schematic diagram.

Fig. 8 is display screen interface circuit circuit diagram.

Fig. 9 is reset circuit schematic diagram.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

Embodiment 1: Fig. 1-9, a kind of air pump test board, including the CPU for Comprehensive Signal Processing, level conversion are please referred to Circuit, the power circuit for providing 5V supply voltage, for the key circuit of manual control operation, for showing signal condition LCD display circuit, buzzer cue circuit, awaiting board card sensor acquisition signal input circuit and be connected to awaiting board card Start and stop and pwm signal output circuit, the CPU be separately connected level shifting circuit, power circuit, key circuit, reset circuit, Crystal oscillating circuit, LCD display circuit, buzzer cue circuit, awaiting board card sensor acquisition signal input circuit and be connected to The start and stop of drafting board card and pwm signal output circuit.Electrical isolation is carried out by optocoupler between awaiting board card and CPU.

The utility model mainly provides the functional test of printing equipment air pump KLM4 board.The utility model is by stirring out Close the 5V power supply that S3, J4 control entire test board.X1 connects the control signal of LCD display module, and J3 connects on KLM4 air pump plate Hall sensing module.The utility model be based on IAP15W4K61S4 single-chip microcontroller, can be realized control air pump start and stop, regulation with And velocity measuring is shown.As shown in Figure 1.

The utility model realizes the electrical isolation between awaiting board card and test board by two optocouplers of U2, U4, is come with this It prevents from causing electrical Interference to awaiting board card.This part can be handled by IAP15W4K61S4 single-chip microcontroller on test board, by stirring Start stop signal and pwm signal are given in switch S1 control, simulation, exported after light-coupled isolation to the enable signal of awaiting board card, The pwm signal of status signal and speed regulation.And status signal can also be shown by the flicker frequency of D1.Its schematic diagram As shown in Figure 3, Figure 4

After being handled by single-chip microcontroller IAP15W4K61S4,20 gears are set by the revolving speed of air pump, pass through key S4, S5 It realizes to air pump gear from the increase and decrease of 0%-100%.Regulate and control different rotating speeds by pwm signal, it is actually constant in the period In the case where change duty ratio to achieve the purpose that adjust revolving speed.In this circuit, buzzer circuit is added, to reach sound The effect of the synchronous prompt of sound.Its schematic diagram is as shown in Figure 5, Figure 6

This test board can equally realize electrical isolation by tri- optocouplers of U5, U6, U7 with awaiting board card, while receive outer The input signal of portion's sensor acquisition.Its schematic diagram is as shown in Figure 7

The input signal that this test board receives accesses LCD1602 display module, this LCD1602 after handling via single-chip microcontroller Display module is equally the research and development of our company's autonomous Design, can choose TTL or 232 two kinds of communication modes, makes on this test board What is used is TTL mode.Via display module, it can be achieved that showing the information such as the revolving speed of object to be measured, operating status and gear. Its schematic diagram is as shown in Figure 8

Meanwhile the utility model detection plate is also added to manual key reset circuit, schematic diagram is as shown in Figure 9.

Therefore the utility model using IAP15W4K61S4 single-chip microcontroller as core, controls through toggle switch S3, J4 and opens test The power supply of plate, then by S1 provide enable signal, after being handled by single-chip microcontroller, by light-coupled isolation export start stop signal and Pwm signal cooperates with S4, S5, and buzzer module synchronization is reminded, can start and stop, regulation awaiting board card.It is defeated after light-coupled isolation simultaneously Enter signal and reach single-chip microcontroller, is sent to display module after processing, it can be by information such as the operating status of object to be measured, revolving speed, gears It shows.Start and stop, regulation and the speed that output can be realized detection air pump KLM4 such as show at the major functions.Its complete schematic As shown in Figure 2.

Embodiment 2, on the basis of embodiment 1, this circuit board are based on IAP15W4K61S4 single-chip microcontroller, handle through single-chip microcontroller Configurable I/O mouthfuls of detection afterwards.Firstly, the input/output of the controllable data being arranged for awaiting board card of single-chip microcontroller, leads to Toggle switch SW1 is crossed to select different modes, it is also possible to carry out interrupt clear control using key S4 by single-chip microcontroller System, while it being also provided with the manual reset circuit controlled by S3, as shown in Figure 2.

It is obvious to a person skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and And without departing substantially from the spirit or essential attributes of the utility model, it can realize that this is practical new in other specific forms Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this is practical new The range of type is indicated by the appended claims rather than the foregoing description, it is intended that containing for the equivalent requirements of the claims will be fallen in All changes in justice and range are embraced therein.It should not treat any reference in the claims as limiting Related claim.

In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art The other embodiments being understood that.

Claims (5)

1. a kind of air pump test board, including CPU, level shifting circuit, power circuit, key circuit, LCD display circuit, buzzing Device cue circuit, awaiting board card sensor acquisition signal input circuit and the start and stop and pwm signal output that are connected to awaiting board card Circuit, which is characterized in that the CPU is separately connected level shifting circuit, power circuit, key circuit, LCD display circuit, bee Ring device cue circuit, awaiting board card sensor acquisition signal input circuit and be connected to awaiting board card start and stop and pwm signal it is defeated Circuit out.

2. a kind of air pump test board according to claim 1, which is characterized in that be also connected with reset circuit on the CPU And crystal oscillating circuit.

3. a kind of air pump test board according to claim 1, which is characterized in that the CPU is mono- using IAP15W4K61S4 Piece machine.

4. a kind of air pump test board according to claim 3, which is characterized in that pass through between the CPU and awaiting board card Optocoupler carries out electrical isolation.

5. a kind of air pump test board according to claim 1 to 4, which is characterized in that the LCD display circuit is LCD1602 display.