Air pump control circuit, air pump control device and desktop robot

Abstract

The present application belongs to the field of air pump technology, and provides an air pump control circuit, an air pump control device and a desktop robot. The air pump control circuit is connected to an intake solenoid valve and an air blowing solenoid valve. The air pump control circuit includes: a key module, a trigger module, an automatic control module, a switch module and a power switching module. The key module and the trigger module generate at most one intake control signal and one air blowing control signal as a trigger signal according to a first key control signal and a second key control signal. The automatic control module generates at most one intake control signal and one air blowing control signal as a trigger signal. The switch module controls the intake solenoid valve to be powered on when the intake control signal is at a high level, and controls the air blowing solenoid valve to be powered on when the air blowing control signal is at a high level, thereby avoiding the use of an MCU in the air pump control circuit and solving the problems of high software development and software maintenance costs when the MCU is applied to the air pump control circuit.

Description

Technical Field

[0001] The present application relates to the technical field of air pumps, and in particular to an air pump control circuit, an air pump control device, and a desktop robot. Background Art

[0002] An air pump is one of the essential components of an inflatable product. An air pump controller is used by the user to control the air pump to blow air (positive pressure) or inhale air (negative pressure) when needed to inflate or deflate the inflatable product.

[0003] However, the blowing (positive pressure) and suction (negative pressure) control of existing air pumps are mostly implemented based on microcontroller units (MCUs), which have problems such as high software development and maintenance costs. Summary of the Invention

[0004] The purpose of this application is to provide an air pump control circuit, an air pump control device and a desktop robot, aiming to solve the problems of high software development and software maintenance costs in the existing air pump blowing and suction control based on MCU.

[0005] The present invention provides an air pump control circuit, comprising:

[0006] A key module, configured to generate a first key control signal and a second key control signal according to a key action;

[0007] a trigger module, connected to the button module, configured to generate an inhalation control signal according to the first button control signal, and to generate an air blowing control signal according to the second button control signal, wherein at most one of the inhalation control signal and the air blowing control signal is a trigger signal;

[0008] An automatic control module, configured to receive a first control signal and a second control signal as input, and to generate an air suction control signal according to the first control signal, and to generate an air blowing control signal according to the second control signal, wherein at most one of the air suction control signal and the air blowing control signal is a trigger signal;

[0009] a switch module connected to the trigger module and the automatic control module, and configured to control the power on of the suction solenoid valve when the suction control signal is a trigger signal, and to control the power on of the blowing solenoid valve when the blowing control signal is a trigger signal;

[0010] The power switching module has a first power supply end for supplying power to the trigger module and a second power supply end for supplying power to the automatic control module, and one of the first power supply end and the second power supply end is selectively powered on.

[0011] In one embodiment, the trigger module includes: a first D trigger, a second D trigger, a first pull-up unit, a second pull-up unit, a first pull-down unit, and a second pull-down unit;

[0012] The first input terminal of the first D flip-flop and the second input terminal of the second D flip-flop are connected together to form the first input terminal of the trigger module, and are used to receive the first key control signal;

[0013] The first input terminal of the second D flip-flop is connected in common with the second input terminal of the first D flip-flop to form the second input terminal of the flip-flop module, and is used to receive the second key control signal;

[0014] The first pull-up unit is connected between the first power supply terminal and the second input terminal of the first D flip-flop, and is used to pull up the level of the second input terminal of the first D flip-flop after the first power supply terminal is powered on; the first pull-down unit is connected between the second power supply terminal and the second input terminal of the first D flip-flop, and is used to pull down the level of the second input terminal of the first D flip-flop after the second power supply terminal is powered on; the second pull-up unit is connected between the first power supply terminal and the second input terminal of the second D flip-flop, and is used to pull up the level of the second input terminal of the second D flip-flop after the first power supply terminal is powered on; the second pull-down unit is connected between the second power supply terminal and the second input terminal of the second D flip-flop, and is used to pull down the level of the second input terminal of the second D flip-flop after the second power supply terminal is powered on;

[0015] The first output end of the first D flip-flop constitutes the first output end of the flip-flop module, for outputting the suction control signal; the first output end of the second D flip-flop constitutes the second output end of the flip-flop module, for outputting the blowing control signal;

[0016] The second output terminal of the first D flip-flop is connected to the fourth input terminal of the first D flip-flop, and the third input terminal of the first D flip-flop and the power supply terminal of the first D flip-flop are commonly connected to the first power supply terminal;

[0017] The second output terminal of the second D flip-flop is connected to the fourth input terminal of the second D flip-flop, and the third input terminal of the second D flip-flop and the power supply terminal of the second D flip-flop are commonly connected to the first power supply terminal.

[0018] In one embodiment, the button module includes:

[0019] a first button unit, connected to the first input terminal of the trigger module, and configured to generate the first button control signal according to the button action;

[0020] The second button unit is connected to the second input end of the trigger module and is used to generate the second button control signal according to the button action.

[0021] In one embodiment, the first button unit includes: a first reset button, a first resistor, and a first capacitor;

[0022] A first end of the first reset button is grounded, a second end of the first reset button, a first end of the first resistor, and a first end of the first capacitor are commonly connected to a first input end of the trigger module, a second end of the first capacitor is grounded, and a second end of the first resistor is connected to a power supply end;

[0023] In one embodiment, the second button unit includes: a second reset button, a second resistor, and a second capacitor;

[0024] The first end of the second reset button is grounded, the second end of the second reset button, the first end of the second resistor, and the first end of the second capacitor are commonly connected to the second input end of the trigger module, the second end of the second capacitor is grounded, and the second end of the second resistor is connected to the power supply end.

[0025] In one embodiment, the automatic control module includes:

[0026] a first isolation driver, having a power supply end connected to the second power supply end, an input end for receiving the first control signal, and an output end for outputting the suction control signal;

[0027] The second isolation driver has a power supply end connected to the second power supply end, an input end for receiving the second control signal, and an output end for outputting the blowing control signal.

[0028] In one embodiment, the switch module includes: a first switch unit and a second switch unit;

[0029] The first end of the first switch unit is connected to the air intake solenoid valve, the second end of the first switch unit is grounded, and the control end of the first switch unit receives the air intake control signal. The first end of the second switch unit is connected to the air blowing solenoid valve, the second end of the second switch unit is grounded, and the control end of the second switch unit receives the air blowing control signal.

[0030] In one embodiment, the switch module further includes:

[0031] a third switching unit and a fourth switching unit;

[0032] The first end of the third switch unit and the first end of the fourth switch unit are connected to the atmospheric pressure solenoid valve and / or the air source air pump, the second end of the third switch unit is grounded, the second end of the fourth switch unit is grounded, the control end of the third switch unit receives the suction control signal, and the control end of the fourth switch unit receives the blowing control signal.

[0033] In one embodiment, the first switch unit, the second switch unit, the third switch unit, and the fourth switch unit are all N-type MOS transistors.

[0034] A second aspect of an embodiment of the present application provides an air pump control device, characterized in that it includes an air pump control circuit as described in any of the above embodiments.

[0035] A third aspect of an embodiment of the present application provides a desktop robot, comprising: a base, a driving mechanism, a robotic arm, an air pipe, an end of the robotic arm, an air suction solenoid valve, an air blowing solenoid valve, and an air pump control circuit as described in any of the above embodiments, wherein the air pipe is arranged along the robotic arm and is connected to the air suction solenoid valve and the air blowing solenoid valve; the air pump control circuit is arranged in the driving mechanism and is connected to the air suction solenoid valve and the air blowing solenoid valve, and is used to control the power-on status of the air suction solenoid valve and the air blowing solenoid valve.

[0036] The present application provides an air pump control circuit, an air pump control device and a desktop robot. The air pump control circuit is connected to an intake solenoid valve and an air blowing solenoid valve. The air pump control circuit can selectively implement manual control or automatic control. When manual control is selected, the key module generates a first key control signal and a second key control signal according to the key action, and the trigger module generates at most one intake control signal and one air blowing control signal as a trigger signal according to the first key control signal and the second key control signal. When automatic control is selected, at most one intake control signal and one air blowing control signal as a trigger signal are generated according to the connected first control signal and the second control signal. The switch module controls the intake solenoid valve to be powered on when the intake control signal is a trigger signal, and controls the air blowing solenoid valve to be powered on when the air blowing control signal is a trigger signal, thereby avoiding the use of MCU in the air pump control circuit and solving the problems of high software development and software maintenance costs when the MCU is applied to the air pump control circuit. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 A schematic structural diagram of an air pump control circuit provided in an embodiment of the present application;

[0038] Figure 2 A schematic structural diagram of another air pump control circuit provided in an embodiment of the present application;

[0039] Figure 3 A logic diagram of a D flip-flop provided in an embodiment of the present application;

[0040] Figure 4 This is a schematic structural diagram of another air pump control circuit provided in an embodiment of the present application. DETAILED DESCRIPTION

[0041] In order to make the purpose, technical solutions and advantages of this application more clearly understood, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0042] In the description of this application, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Therefore, features specified as "first" or "second" may explicitly or implicitly include one or more of such features.

[0043] The blowing (positive pressure) and suction (negative pressure) controls of existing air pumps are mostly implemented based on MCU. For example, multiple reset buttons control the IO interfaces corresponding to the MCU respectively. After the MCU detects that the IO input pin related to the blowing control is at a low level, it controls the IO output pin related to the blowing control to output a high level, drives the corresponding blowing solenoid valve to power on, and after the blowing solenoid valve is powered on, the air pump performs the blowing action to realize the blowing function. After the MCU detects that the IO input pin related to the suction control is at a low level, it controls the IO output pin related to the suction control to output a high level, drives the corresponding suction solenoid valve to power on, and after the suction solenoid valve is powered on, the air pump performs the suction action to realize the suction function.

[0044] However, in the air pump control circuit designed based on MCU, on the one hand, users need to invest in corresponding software development and software maintenance, which increases labor costs; on the other hand, the price of MCU is relatively high, which increases the material cost of the control circuit.

[0045] In order to solve the above problems, the embodiment of the present application provides an air pump control circuit, which is connected to the air suction solenoid valve 51 and the air blowing solenoid valve 52. Figure 1As shown, the air pump control circuit includes: a key module 10, a trigger module 20, an automatic control module 30, a switch module 40, and a power switching module 50. The key module 10 and the trigger module 20 constitute a manual control component. The key module 10 generates a first key control signal and a second key control signal based on the key action, and the trigger module 20 generates an inspiration control signal and an air blow control signal based on the first key control signal and the second key control signal, respectively. The automatic control module 30 constitutes an automatic control component and is configured to receive a first control signal INPUT1 and a second control signal INPUT2 as input, and to generate an inspiration control signal based on the first control signal INPUT1 and an air blow control signal based on the second control signal INPUT2. Among them, under one control, at most one of the suction control signal and the blowing control signal is a trigger signal (i.e., valid); the switch module 40 controls the suction solenoid valve 51 to be powered on when the suction control signal is a trigger signal, and controls the blowing solenoid valve 52 to be powered on when the blowing control signal is a trigger signal, thereby avoiding the use of MCU in the air pump control circuit and solving the problems of high software development and software maintenance costs when MCU is applied to the air pump control circuit.

[0046] In addition, at a given moment, only one of the manual control component and the automatic control component can be powered on. Specifically, the power switching module 50 has a first power supply terminal HAND_VCC for powering the trigger module 20 and a second power supply terminal AUTO_VCC for powering the automatic control module 30. The power switching module 50 selects one of the first power supply terminal HAND_VCC and the second power supply terminal AUTO_VCC to be powered on according to external operation. In this embodiment, the power switching module 50 includes a single-pole double-throw switch SW3 (see Figure 4 ), the first power supply terminal HAND_VCC and the second power supply terminal AUTO_VCC are connected through a single-pole double-throw switch SW3 (see Figure 4 ) is connected to the power supply so that the power supply can only power one of the power terminals.

[0047] In this embodiment, the button module 10 can generate corresponding button control signals according to different button actions. For example, the button action can include a first button action for controlling the power on of the suction solenoid valve 51 so that the air pump performs suction and a second button action for controlling the power on of the blowing solenoid valve 52 so that the air pump performs blowing. In a specific application, when any of the two reset buttons performs a button action, the button module 10 can output a first button control signal and a second button control signal. The difference is that if the first button action is performed on the first reset button, the first button control signal is a rising edge signal, and the second button control signal is maintained at a high level; if the second button action is performed on the second reset button, the second button control signal is a rising edge signal, and the first button control signal is maintained at a high level; that is, when a button action is performed on any reset button, the button module 10 will generate a rising edge signal to control the trigger module 20 to trigger the generation of the corresponding suction / blowing control signal.

[0048] The trigger module 20 includes two corresponding triggers, which respectively generate corresponding suction / blowing control signals according to the received key control signals. Since the trigger can trigger the output of the corresponding level according to the rising edge or falling edge of the level, any of the two reset buttons performs the key action.

[0049] In a specific application, if the switch module 40 is turned on according to a high level, the trigger signal is at a high level; if the switch module 40 is turned on according to a low level, the trigger signal is at a low level. For example, if the switch module 40 grounds the corresponding solenoid valve according to a high level trigger signal to control the solenoid valve to be powered on, if the suction control signal generated by the trigger module 20 is at a high level, the switch module 40 controls the corresponding suction solenoid valve 51 to be powered on, thereby achieving suction control of the air pump. If the blowing control signal generated by the trigger module 20 is at a high level, the switch module 40 controls the corresponding blowing solenoid valve 52 to be powered on, thereby achieving suction control of the air pump.

[0050] In one embodiment, see Figure 2 and Figure 4 As shown, the trigger module 20 includes a first D trigger 21 , a second D trigger 22 , a first pull-up unit 23 , a second pull-up unit 24 , a first pull-down unit 25 and a second pull-down unit 26 .

[0051] In the D flip-flop of this embodiment, combined with Figure 3The logic function table of the D flip-flop shown in the figure, the D flip-flop includes a first input terminal CLK, a second input terminal / CLR, a third input terminal / PRE, a fourth input terminal D, a first output terminal Q and a second output terminal / Q. When the second input terminal / CLR, the third input terminal / PRE and the fourth input terminal D of the D flip-flop are set to a high level (H), when the first input terminal CLK of the D flip-flop detects a first rising edge (↑), the first output terminal Q outputs a high level (H), and the second output terminal / Q outputs a low level (L). When the second input terminal / CLR and the third input terminal / PRE of the D flip-flop are set to a high level (H), and the fourth input terminal D is set to a low level (L), when the first input terminal CLK detects a second rising edge (↑), the first output terminal Q outputs a low level, and the second output terminal / Q outputs a high level.

[0052] In a specific application embodiment, combined with Figure 4 As shown, the first input terminal CLK1 of the first D flip-flop 21 is used to detect the rising edge signal sent by the key module 10, and the second input terminal / CLR1 of the first D flip-flop 21 is connected to the first power supply terminal HAND_VCC through the first pull-up unit 23 to ensure that the first output terminal Q1 of the first D flip-flop 21 outputs a low level by default at the initial power-on moment. The third input terminal / PRE1 of the first D flip-flop 21 and the power supply terminal VCC are commonly connected to the first power supply terminal HAND_VCC, and its level is set to a high level.

[0053] The first input terminal CLK2 of the second D flip-flop 22 is used to detect the rising edge signal sent by the key module 10. The second input terminal / CLR2 of the second D flip-flop 22 is connected to the first power supply terminal HAND_VCC through the second pull-up unit 24 to ensure that the first output terminal Q2 of the second D flip-flop 22 outputs a low level by default at the initial power-on moment. The third input terminal / PRE2 of the second D flip-flop 22 and the power supply terminal VCC are commonly connected to the first power supply terminal HAND_VCC, and its level is set to a high level.

[0054] When the first input terminal CLK1 of the first D-type flip-flop 21 detects a first rising edge signal, the suction control signal outputted by its first output terminal Q1 is at a high level. At this point, the switch module 40 controls the suction solenoid valve 51 to be powered on, and the air pump performs the suction operation. When the first input terminal CLK1 of the first D-type flip-flop 21 detects a second rising edge signal, the suction control signal outputted by its first output terminal Q1 is at a low level. At this point, the switch module 40 controls the suction solenoid valve 51 to be powered off, and the air pump stops performing the suction operation.

[0055] When the first input terminal CLK2 of the second D-type flip-flop 22 detects the first rising edge signal, the blowing control signal outputted by its first output terminal Q2 is at a high level. At this time, the switch module 40 controls the blowing solenoid valve 52 to be powered on, and the air pump performs the blowing action. When the first input terminal CLK2 of the second D-type flip-flop 22 detects the second rising edge signal, the blowing control signal outputted by its first output terminal Q2 is at a low level. At this time, the switch module 40 controls the blowing solenoid valve 52 to be powered off, and the air pump stops performing the blowing action.

[0056] In this embodiment, see Figure 4 As shown, the first input terminal CLK1 of the first D flip-flop 21 and the second input terminal / CLR2 of the second D flip-flop 22 are connected in common to form the first input terminal of the trigger module 20 for receiving the first key control signal.

[0057] The first input terminal CLK2 of the second D flip-flop 22 is connected to the second input terminal / CLR1 of the first D flip-flop 21 to form the second input terminal of the flip-flop module 20 for receiving the second key control signal.

[0058] The first pull-up unit 23 is connected between the first power supply terminal HAND_VCC and the second input terminal / CLR1 of the first D flip-flop 21, and is used to pull up the level of the second input terminal / CLR1 of the first D flip-flop 21 after the first power supply terminal HAND_VCC is powered on during manual control, so as to ensure that the first output terminal Q1 of the first D flip-flop 21 outputs a low level by default; the second pull-up unit 24 is connected between the first power supply terminal HAND_VCC and the second input terminal / CLR2 of the second D flip-flop 22, and is used to pull up the level of the second input terminal / CLR2 of the second D flip-flop 22 after the first power supply terminal HAND_VCC is powered on during manual control, so as to ensure that the first output terminal Q2 of the second D flip-flop 22 outputs a low level by default.

[0059] By connecting the first input terminal CLK1 of the first D flip-flop 21 and the second input terminal / CLR2 of the second D flip-flop 22 in common, when the first key control signal is a rising edge signal, the level of the second input terminal / CLR2 of the second D flip-flop 22 is set to a low level, and the first output terminal Q2 of the second D flip-flop 22 is maintained at a low level, thereby preventing the first output terminal Q1 of the first D flip-flop 21 and the first output terminal Q2 of the second D flip-flop 22 from outputting high-level signals at the same time.

[0060] By connecting the first input terminal CLK2 of the second D flip-flop 22 and the second input terminal / CLR1 of the first D flip-flop 21 in common, when the second key control signal is a rising edge signal, the level of the second input terminal / CLR1 of the first D flip-flop 21 can be set to a low level, and the first output terminal Q1 of the first D flip-flop 21 outputs a low level, thereby preventing the first output terminal Q1 of the first D flip-flop 21 and the first output terminal Q2 of the second D flip-flop 22 from outputting high-level signals at the same time.

[0061] The first output terminal Q1 of the first D flip-flop 21 constitutes the first output terminal of the flip-flop module 20 and is used to output an air intake control signal.

[0062] The first output terminal of the second D trigger 22 constitutes the second output terminal of the trigger module 20, and is used to output the blowing control signal.

[0063] Specifically, the first pull-up unit 23 includes a second resistor R2 and a second capacitor C2. The second input terminal / CLR1 of the first D-type flip-flop 21, the first end of the second resistor R2, and the first end of the second capacitor C2 are connected in common. The second end of the second capacitor C2 is grounded. The second end of the second resistor R2 is connected to the first power supply terminal HAND_VCC. The second pull-up unit 24 includes a sixth resistor R6 and a fourth capacitor C4. The second input terminal / CLR2 of the second D-type flip-flop 22, the first end of the sixth resistor R6, and the first end of the fourth capacitor C4 are connected in common. The second end of the fourth capacitor C4 is grounded. The second end of the sixth resistor R6 is connected to the first power supply terminal HAND_VCC.

[0064] In this embodiment, in order to prevent the manual control component from being triggered by mistake during the automatic control process, the trigger module 20 is further provided with a first pull-down unit 25 and a second pull-down unit 26 .

[0065] The first pull-down unit 25 is connected between the second power supply terminal AUTO_VCC and the second input terminal / CLR1 of the first D flip-flop 21, and the second pull-down unit 26 is connected between the second power supply terminal AUTO_VCC and the second input terminal / CLR2 of the second D flip-flop 22. The first pull-down unit 25 is used to pull down the level of the second input terminal / CLR1 of the first D flip-flop 21 after the second power supply terminal AUTO_VCC is powered on during automatic control; the second pull-down unit 26 is used to pull down the level of the second input terminal / CLR2 of the second D flip-flop 22 after the second power supply terminal AUTO_VCC is powered on during automatic control, so that the first output terminal Q1 of the first D flip-flop 21 and the first output terminal Q2 of the second D flip-flop 22 continue to output low-level signals. The manual control component fails during automatic control, thereby avoiding system logic confusion and improving reliability.

[0066] See also Figure 4As shown, the second output terminal / Q1 of the first D flip-flop 21 is connected to the fourth input terminal D1 of the first D flip-flop 21, and the third input terminal / PRE1 of the first D flip-flop 21 and the power supply terminal VCC1 of the first D flip-flop 21 are commonly connected to the first power supply terminal HAND_VCC.

[0067] The second output terminal / Q2 of the second D flip-flop 22 is connected to the fourth input terminal D2 of the second D flip-flop 22 . The third input terminal / PRE2 of the second D flip-flop 22 and the power supply terminal VCC2 of the second D flip-flop 22 are commonly connected to the first power supply terminal HAND_VCC.

[0068] The first pull-down unit 25 includes a third resistor R3, a fourth resistor R4 and an NPN transistor T5. The third resistor R3 is connected between the second input terminal / CLR1 of the first D flip-flop 21 and the collector of the NPN transistor T5. The fourth resistor R4 is connected between the second power supply terminal AUTO_VCC and the base of the NPN transistor T5. The emitter of the NPN transistor T5 is grounded. After the second power supply terminal AUTO_VCC is powered on, the NPN transistor T5 is turned on to pull the level of the second input terminal / CLR1 of the first D flip-flop 21 down to ground, so that the first output terminal Q1 of the first D flip-flop 21 continues to output a low-level signal.

[0069] The second pull-down unit 26 includes a seventh resistor R7, an eighth resistor R8, and an NPN transistor T6. The seventh resistor R7 is connected between the second input terminal / CLR2 of the second D flip-flop 22 and the collector of the NPN transistor T6. The eighth resistor R8 is connected between the second power supply terminal AUTO_VCC and the base of the NPN transistor T6. The emitter of the NPN transistor T6 is grounded. After the second power supply terminal AUTO_VCC is powered on, the NPN transistor T6 is turned on to pull the level of the second input terminal / CLR2 of the second D flip-flop 22 down to ground, so that the first output terminal Q2 of the second D flip-flop 22 continues to output a low-level signal.

[0070] In this embodiment, the output levels of the first output terminal Q1 of the first D flip-flop 21 and the second output terminal / Q1 thereof are opposite, and the output levels of the first output terminal Q2 of the second D flip-flop 22 and the second output terminal / Q2 thereof are opposite.

[0071] In this embodiment, by connecting a pull-up circuit to the second input terminal / CLR1 of the first D flip-flop 21 and the second input terminal / CLR2 of the second D flip-flop 22, it can be ensured that after the system is manually powered on and before the key module 10 is operated, the first output terminal Q1 of the first D flip-flop 21 and the first output terminal Q2 of the second D flip-flop 22 output a low level by default, thereby preventing the air pump from being accidentally started.

[0072] In a specific application embodiment, the RC parameters of the RC circuit included in the pull-up circuit can be determined as needed. For example, according to the capacitor charging time formula Vt = Vu*[1–exp(-t / RC)], when Vt = 0.99Vu, t = 200-300ms is optimal, where Vu is the voltage of the first power supply terminal HAND_VCC, R is the resistance of the resistor in the RC circuit, and C is the capacitance of the capacitor in the RC circuit.

[0073] In addition, by connecting a pull-down circuit to the second input terminal / CLR1 of the first D flip-flop 21 and the second input terminal / CLR2 of the second D flip-flop 22, it can be ensured that after the system is automatically powered on, even if the key module 10 is operated, the first output terminal Q1 of the first D flip-flop 21 and the first output terminal Q2 of the second D flip-flop 22 both maintain an output low level, thereby preventing the air pump from being accidentally started.

[0074] In one embodiment, see Figure 2 and Figure 4 As shown, the key module 10 includes a first key unit 11 and a second key unit 12 .

[0075] The first button unit 11 is connected to the first input end of the trigger module 20 and is used to generate a first button control signal according to the button action; the second button unit 12 is connected to the second input end of the trigger module 20 and is used to generate a second button control signal according to the button action.

[0076] In this embodiment, both the first button unit 11 and the second button unit 12 can generate rising edge signals according to the button action.

[0077] In one embodiment, see Figure 4 As shown, the first button unit 11 includes: a first reset button SW1, a first resistor R1, and a first capacitor C1; the first end of the first reset button SW1 is grounded, the second end of the first reset button SW1, the first end of the first resistor R1, and the first end of the first capacitor C1 are commonly connected to the first input end of the trigger module 20, the second end of the first capacitor C1 is grounded, and the second end of the first resistor R1 is connected to the first power supply end HAND_VCC.

[0078] In one embodiment, see Figure 4 As shown, the second button unit 12 includes: a second reset button SW2, a second resistor R2, and a second capacitor C2; the first end of the second reset button SW2 is grounded, the second end of the second reset button SW2, the first end of the second resistor R2, and the first end of the second capacitor C2 are commonly connected to the second input end of the trigger module 20, the second end of the second capacitor C2 is grounded, and the second end of the second resistor R2 is connected to the first power supply end HAND_VCC.

[0079] See also Figure 4 As shown, in one embodiment, the self-control module 30 includes a first isolation driver T7 and a second isolation driver T8.

[0080] The power supply terminal of the first isolation driver T7 is connected to the second power supply terminal AUTO_VCC. The input terminal of the first isolation driver T7 is used to receive the first control signal INPUT1, and the output terminal of the first isolation driver T7 is used to output the air intake control signal. The power supply terminal of the second isolation driver T8 is connected to the second power supply terminal AUTO_VCC. The input terminal of the second isolation driver T8 is used to receive the second control signal INPUT2, and the output terminal of the second isolation driver T8 is used to output the air blowing control signal. Using an isolation device to drive can prevent mutual interference between the circuits on both sides. In this example, the isolation driver is a photocoupler. The input terminal of the isolation driver is the positive electrode of the light source of the photocoupler, the power supply terminal is the input terminal of the light receiver (such as the collector of a phototransistor), and the output terminal is the output terminal of the light receiver (such as the emitter of a phototransistor). In addition, the first control signal INPUT1, the air intake control signal, the second control signal INPUT2, and the air blowing control signal are high-level signals.

[0081] In one embodiment, the switch module 40 includes a first switch unit 41 and a second switch unit 42 .

[0082] The first end of the first switch unit 41 is connected to the air intake solenoid valve 51, the second end of the first switch unit 41 is grounded, the control end of the first switch unit 41 is connected to the first output end of the trigger module 20, the first end of the second switch unit 42 is connected to the air blowing solenoid valve 52, the second end of the second switch unit 42 is grounded, and the control end of the second switch unit 42 is connected to the second output end of the trigger module 20.

[0083] In one embodiment, the first switch unit 41 and the second switch unit 42 are both N-type MOS transistors.

[0084] See also Figure 4 As shown, the first switch unit 41 includes a first switch tube T1 , a first end of the first switch tube T1 is connected to the intake solenoid valve 51 , a second end of the first switch tube T1 is grounded, and a control end of the first switch tube T1 is connected to the first D trigger 21 .

[0085] The first switch tube T1 can be an N-type MOS tube, and the air suction solenoid valve 51 is connected to the system power supply +24V. If the air suction control signal is high, the first switch tube T1 is turned on, the air suction solenoid valve 51 is powered on, and the air pump performs the air suction action.

[0086] See also Figure 4As shown, the second switch unit 42 includes a second switch tube T3, a first end of the second switch tube T3 is connected to the blowing solenoid valve 52, a second end of the second switch tube T3 is grounded, and a control end of the second switch tube T3 is connected to the second D trigger 22.

[0087] The second switch tube T3 can be an N-type MOS tube, and the blowing solenoid valve 52 is connected to the system power supply +24V. If the blowing control signal is high, the second switch tube T3 is turned on, the blowing solenoid valve 52 is powered on, and the air pump performs the blowing action.

[0088] In one embodiment, the switch module 40 further includes a third switch unit 43 and a fourth switch unit 44 .

[0089] The first end of the third switch unit 43 and the first end of the fourth switch unit 44 are connected to the atmospheric pressure solenoid valve 54 and / or the air source air pump 54, the second end of the third switch unit 43 is grounded, the second end of the fourth switch unit 44 is grounded, the control end of the third switch unit 43 is connected to the first output end of the trigger module 20, and the control end of the fourth switch unit 44 is connected to the second output end of the trigger module 20.

[0090] In this embodiment, the third switch unit 43 and the fourth switch unit 44 can simultaneously control the start-up of the atmospheric pressure solenoid valve 53 and / or the air source air pump 54, thereby avoiding energy loss caused by the atmospheric pressure solenoid valve 53 and / or the air source air pump 54 remaining in operation when the air pump is not in operation.

[0091] At the reset moment after the first reset button SW1 is pressed, the first output terminal Q1 of the first D trigger 21 outputs a high-level intake control signal, the first switch unit 41 and the third switch unit 43 are turned on, the intake solenoid valve 51, the atmospheric pressure solenoid valve 53 and the air source air pump 54 are all in working state, and at the reset moment after the first reset button SW1 is pressed again, the first input terminal CLK1 of the first D trigger 21 detects the second rising edge, and the first output terminal Q1 of the first D trigger 21 outputs a low-level intake control signal, the first switch unit 41 and the third switch unit 43 pipes are closed, and the intake solenoid valve 51, the atmospheric pressure solenoid valve 53 and the air source air pump 54 all stop working.

[0092] At the reset moment after the second reset button SW2 is pressed, the first output terminal Q2 of the second D trigger 22 outputs a high-level blowing control signal, the second switch unit 42 and the fourth switch unit 44 are turned on, the blowing solenoid valve, the atmospheric pressure solenoid valve 53 and the air source air pump 54 are all in working state, and at the reset moment after the second reset button SW2 is pressed again, the first input terminal CLK2 of the second D trigger 22 detects the second rising edge, the first output terminal Q2 of the second D trigger 22 outputs a low-level blowing control signal, the second switch unit 42 and the fourth switch unit 44 pipes are closed, and the blowing solenoid valve, the atmospheric pressure solenoid valve 53 and the air source air pump 54 all stop working.

[0093] In one embodiment, the third switch unit 43 and the fourth switch unit 44 may be N-type MOS transistors.

[0094] See also Figure 4 As shown, the third switch unit 43 includes a third switch tube T2, the first end of the third switch tube T2 is connected to the atmospheric pressure solenoid valve 53 and the air source air pump 54, the second end of the third switch tube T2 is grounded, and the control end of the third switch tube T2 is connected to the first D trigger 21.

[0095] The third switch tube T2 can be an N-type MOS tube. The control ends of the third switch tube T2 and the first switch tube T1 are both connected to the first D trigger 21. The atmospheric pressure solenoid valve 53 and the air source air pump 54 are connected to the system power supply +24V. When the suction control signal is at a high level, the first switch tube T1 and the third switch tube T2 are turned on at the same time, the suction solenoid valve 51, the atmospheric pressure solenoid valve 53, and the air source air pump 54 are powered on at the same time, and the air pump performs the suction action.

[0096] See also Figure 4 As shown, the fourth switch unit 44 includes a fourth switch tube T4, a first end of the fourth switch tube T4 is connected to the atmospheric pressure solenoid valve 53 and the air source air pump 54, a second end of the fourth switch tube T4 is grounded, and a control end of the fourth switch tube T4 is connected to the second D trigger 22.

[0097] The fourth switch tube T4 can be an N-type MOS tube. The control ends of the fourth switch tube T4 and the second switch tube T3 are both connected to the second D trigger 22. The atmospheric pressure solenoid valve 53 and the air source air pump 54 are connected to the system power supply +24V. When the blowing control signal is at a high level, the second switch tube T3 and the fourth switch tube T4 are turned on, and the suction solenoid valve 51, the atmospheric pressure solenoid valve 53, and the air source air pump 54 are powered on at the same time, and the air pump performs the blowing action.

[0098] An embodiment of the present application further provides an air pump control device, comprising an air pump control circuit as described in any of the above embodiments.

[0099] An embodiment of the present application also provides a desktop robot, including: a base, a driving mechanism, a robotic arm, an air pipe, an end of the robotic arm, an air suction solenoid valve 51, an air blowing solenoid valve 52, and an air pump control circuit as described in any of the above embodiments. The air pipe is arranged along the robotic arm and is connected to the air suction solenoid valve 51 and the air blowing solenoid valve 52. The air pump control circuit is arranged in the driving mechanism and is connected to the air suction solenoid valve 51 and the air blowing solenoid valve 52, and is used to control the power-on status of the air suction solenoid valve 51 and the air blowing solenoid valve 52.

[0100] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. An air pump control circuit, characterized in that: include: A key module, configured to generate a first key control signal and a second key control signal according to a key action; a trigger module connected to the button module, configured to generate an inhalation control signal according to the first button control signal, and to generate an inhalation control signal according to the second button control signal; the trigger module includes two corresponding triggers, which are respectively triggered to generate the corresponding inhalation control signal and the inhalation control signal according to the received first button control signal and the received second button control signal; An automatic control module, configured to receive a first control signal and a second control signal as input, and to generate an air suction control signal according to the first control signal and to generate an air blowing control signal according to the second control signal; a switch module connected to the trigger module and the automatic control module, and configured to control the power on of the suction solenoid valve when the suction control signal is a trigger signal, and to control the power on of the blowing solenoid valve when the blowing control signal is a trigger signal; a power switching module having a first power supply terminal for supplying power to the trigger module and a second power supply terminal for supplying power to the automatic control module, wherein one of the first power supply terminal and the second power supply terminal is selectively powered; wherein at most one of the suction control signal and the blowing control signal is a trigger signal; The trigger module includes: a first D trigger, a second D trigger, a first pull-up unit, a second pull-up unit, a first pull-down unit, and a second pull-down unit; The first input terminal of the first D flip-flop and the second input terminal of the second D flip-flop are connected together to form the first input terminal of the trigger module, and are used to receive the first key control signal; The first input terminal of the second D flip-flop is connected in common with the second input terminal of the first D flip-flop to form the second input terminal of the flip-flop module, and is used to receive the second key control signal; The first pull-up unit is connected between the first power supply terminal and the second input terminal of the first D flip-flop, and is used to pull up the level of the second input terminal of the first D flip-flop after the first power supply terminal is powered on; the first pull-down unit is connected between the second power supply terminal and the second input terminal of the first D flip-flop, and is used to pull down the level of the second input terminal of the first D flip-flop after the second power supply terminal is powered on; the second pull-up unit is connected between the first power supply terminal and the second input terminal of the second D flip-flop, and is used to pull up the level of the second input terminal of the second D flip-flop after the first power supply terminal is powered on; the second pull-down unit is connected between the second power supply terminal and the second input terminal of the second D flip-flop, and is used to pull down the level of the second input terminal of the second D flip-flop after the second power supply terminal is powered on; The automatic control module includes: a first isolation driver, having a power supply end connected to the second power supply end, an input end for receiving the first control signal, and an output end for outputting the suction control signal; The second isolation driver has a power supply end connected to the second power supply end, an input end for receiving the second control signal, and an output end for outputting the blowing control signal.

2. The air pump control circuit according to claim 1, characterized in that: The first output end of the first D flip-flop constitutes the first output end of the flip-flop module, for outputting the suction control signal; the first output end of the second D flip-flop constitutes the second output end of the flip-flop module, for outputting the blowing control signal; The second output terminal of the first D flip-flop is connected to the fourth input terminal of the first D flip-flop, and the third input terminal of the first D flip-flop and the power supply terminal of the first D flip-flop are commonly connected to the first power supply terminal; The second output terminal of the second D flip-flop is connected to the fourth input terminal of the second D flip-flop, and the third input terminal of the second D flip-flop and the power supply terminal of the second D flip-flop are commonly connected to the first power supply terminal.

3. The air pump control circuit according to claim 2, characterized in that: The button module includes: a first button unit, connected to the first input terminal of the trigger module, and configured to generate the first button control signal according to the button action; The second button unit is connected to the second input end of the trigger module and is used to generate the second button control signal according to the button action.

4. The air pump control circuit according to claim 3, wherein: The first button unit includes: a first reset button, a first resistor, and a first capacitor; A first end of the first reset button is grounded, a second end of the first reset button, a first end of the first resistor, and a first end of the first capacitor are commonly connected to a first input end of the trigger module, a second end of the first capacitor is grounded, and a second end of the first resistor is connected to a power supply end; The second button unit includes: a second reset button, a second resistor, and a second capacitor; The first end of the second reset button is grounded, the second end of the second reset button, the first end of the second resistor, and the first end of the second capacitor are commonly connected to the second input end of the trigger module, the second end of the second capacitor is grounded, and the second end of the second resistor is connected to the power supply end.

5. The air pump control circuit according to claim 1 or 2, characterized in that: The switch module includes: a first switch unit and a second switch unit; The first end of the first switch unit is connected to the air intake solenoid valve, the second end of the first switch unit is grounded, and the control end of the first switch unit receives the air intake control signal. The first end of the second switch unit is connected to the air blowing solenoid valve, the second end of the second switch unit is grounded, and the control end of the second switch unit receives the air blowing control signal.

6. The air pump control circuit according to claim 5, characterized in that: The switch module further includes: a third switching unit and a fourth switching unit; The first end of the third switch unit and the first end of the fourth switch unit are connected to the atmospheric pressure solenoid valve and / or the air source air pump, the second end of the third switch unit is grounded, the second end of the fourth switch unit is grounded, the control end of the third switch unit receives the suction control signal, and the control end of the fourth switch unit receives the blowing control signal.

7. The air pump control circuit according to claim 6, characterized in that: The first switch unit, the second switch unit, the third switch unit and the fourth switch unit are all N-type MOS transistors.

8. An air pump control device, characterized in that: The air pump control circuit comprises the air pump control circuit as described in any one of claims 1 to 7.

9. A desktop robot, characterized in that: include: A base, a driving mechanism, a robotic arm, an air pipe, an end of the robotic arm, an air suction solenoid valve, an air blowing solenoid valve and an air pump control circuit as described in any one of claims 1 to 7, wherein the air pipe is arranged along the robotic arm and is connected to the air suction solenoid valve and the air blowing solenoid valve, and the air pump control circuit is arranged in the driving mechanism and is connected to the air suction solenoid valve and the air blowing solenoid valve, and is used to control the power-on status of the air suction solenoid valve and the air blowing solenoid valve.

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