Air pump control device and airwave therapeutic instrument

Abstract

This invention relates to the field of air pump control technology, and more particularly to an air pump control device and an air wave therapy device. The air pump control device of this invention includes: a main controller, a slave controller, an AND gate module, and an air pump drive circuit. By connecting the monitoring terminal of the main controller to the monitoring terminal of the slave controller, the main controller can output a first control signal according to the working state of the slave controller, and the slave controller can also output a second control signal according to the working state of the main controller. After receiving the first and second control signals, the AND gate module outputs a corresponding air pump power control signal to the air pump drive circuit to control the air pump drive circuit. This allows the other controller to output a corresponding control signal to the AND gate module when either controller malfunctions, thereby controlling the air pump drive circuit to stop working through the AND gate module. This reduces the risk of control device malfunction and improves the safety and reliability of the air wave therapy device.

Description

Technical Field

[0001] This invention relates to the field of air pump control technology, and in particular to an air pump control device and an air wave therapy device. Background Technology

[0002] Existing air wave therapy devices use a single MOS (Metal-Oxide-Semiconductor Field-Effect Transistor) transistor connected in series in the main power supply circuit. The control terminal of the MOS transistor receives control signals from the control device to control the conduction and disconnection of the main power supply circuit. This method is simple, but when the control device malfunctions, the main power supply circuit will also malfunction, which will cause the air wave therapy device's air pump to over-inflate, threatening the patient's safety.

[0003] Therefore, how to reduce the risk of control equipment malfunction and improve the safety and reliability of air wave therapy devices has become an urgent problem to be solved in this field. Summary of the Invention

[0004] This invention provides an air pump control device and an air wave therapy device to solve the problem of high risk of control equipment failure in the prior art.

[0005] In a first aspect, the present invention provides an air pump control device, comprising: a main controller, a slave controller, an AND gate module, and an air pump drive circuit; wherein...

[0006] The first signal output terminal of the main controller is connected to the first input terminal of the AND gate module, the first signal output terminal of the slave controller is connected to the second input terminal of the AND gate module, the output terminal of the AND gate module is connected to the first signal input terminal of the air pump drive circuit, the monitoring terminal of the main controller is connected to the monitoring terminal of the slave controller, the monitoring terminal of the main controller is used to obtain the working status of the slave controller, and the monitoring terminal of the slave controller is used to obtain the working status of the main controller.

[0007] The master controller is configured to output a first control signal from the first signal output terminal of the master controller to the first input terminal of the AND gate module according to the working state of the slave controller; the slave controller is configured to output a second control signal from the first signal output terminal of the slave controller to the second input terminal of the AND gate module according to the working state of the master controller.

[0008] The output of the AND gate module is used to output a first air pump power control signal to the air pump drive circuit according to the first control signal and the second control signal.

[0009] In one embodiment, the air pump control device further includes: an overcurrent protection module;

[0010] The first signal input terminal of the overcurrent protection module is used to acquire the current detection signal of the air pump assembly. The first signal output terminal of the overcurrent protection module is connected to the second signal input terminal of the air pump drive circuit. The first signal output terminal of the overcurrent protection module is connected to the first signal input terminal of the main controller and the first signal input terminal of the slave controller. The second signal input terminal of the overcurrent protection module is connected to the first reset signal output terminal of the main controller. The second signal output terminal of the overcurrent protection module is connected to the second signal input terminal of the main controller. The third signal output terminal of the overcurrent protection module is connected to the second signal input terminal of the slave controller.

[0011] The overcurrent protection module is used to output a second air pump power control signal from the first signal output terminal of the overcurrent protection module based on the current detection signal. The overcurrent protection module is also used to output a second air pump power control signal from the first signal output terminal of the main controller based on the first reset signal output terminal of the main controller. The second signal output terminal of the overcurrent protection module is used to output a first current signal to the second signal input terminal of the main controller. The third signal output terminal of the overcurrent protection module is used to output a second current signal to the fourth signal input terminal of the slave controller.

[0012] In one embodiment, the overcurrent protection module includes: a current detection circuit and an overcurrent protection circuit;

[0013] The signal input terminal of the current detection circuit is used to acquire the current detection signal of the air pump assembly. The first signal output terminal of the current detection circuit is connected to the first signal input terminal of the overcurrent protection circuit and the second signal input terminal of the main controller. The second signal output terminal of the current detection circuit is connected to the second signal input terminal of the slave controller.

[0014] The second signal input terminal of the overcurrent protection circuit is connected to the first reset signal output terminal of the main controller, the signal output terminal of the overcurrent protection circuit is connected to the second signal input terminal of the air pump drive circuit, and the signal output terminal of the overcurrent protection circuit is connected to the first signal input terminal of the main controller and the first signal input terminal of the slave controller.

[0015] In one embodiment, the current detection circuit includes: a current acquisition circuit and a current follower circuit;

[0016] The signal input terminal of the current acquisition circuit is used to acquire the current detection signal of the air pump assembly. The first signal output terminal of the current acquisition circuit is connected to the first signal input terminal of the overcurrent protection circuit and the second signal input terminal of the main controller. The second signal output terminal of the current acquisition circuit is connected to the first terminal of the current follower circuit. The signal output terminal of the current follower circuit is connected to the second signal input terminal of the slave controller.

[0017] In one embodiment, the overcurrent protection circuit includes: a first comparator, a first overcurrent reset module, a first feedback module, a first pull-up module, and a first overcurrent threshold providing module;

[0018] The non-inverting input of the first comparator is connected to the first terminal of the first feedback module. The inverting input of the first comparator receives the power supply voltage through the first overcurrent threshold module. The output of the first comparator is connected to the second signal input of the air pump drive circuit. The signal output of the overcurrent protection circuit is connected to the first signal input of the main controller and the first signal input of the slave controller. The output of the first comparator receives the power supply voltage through the first pull-up module. The second terminal of the first feedback module is connected to the first signal output of the current detection circuit. The third terminal of the first feedback module is connected to the output of the first comparator. The first terminal of the first feedback module is connected to the first terminal of the first overcurrent reset module. The second terminal of the first overcurrent reset module is connected to the first reset signal output of the main controller.

[0019] In one embodiment, the air pump control device further includes: an overpressure protection module;

[0020] The first signal input terminal of the overpressure protection module is used to acquire the pressure detection signal of the airbag. The first signal output terminal of the overpressure protection module is connected to the third signal input terminal of the air pump drive circuit. The first signal output terminal of the overpressure protection module is connected to the third signal input terminal of the main controller and the third signal input terminal of the slave controller. The second signal input terminal of the overpressure protection module is connected to the second reset signal output terminal of the main controller. The second signal output terminal of the overpressure protection module is connected to the fourth signal input terminal of the main controller. The third signal output terminal of the overpressure protection module is connected to the fourth signal input terminal of the slave controller.

[0021] The overpressure protection module is used to output a third air pump power control signal from the first signal output terminal of the overpressure protection module based on the pressure detection signal. The overpressure protection module is also used to output a third air pump power control signal from the first signal output terminal of the overpressure protection module based on the second reset signal output terminal of the main controller. The second signal output terminal of the overpressure protection module is used to output a first pressure detection signal to the fourth signal input terminal of the main controller. The third signal output terminal of the overpressure protection module is used to output a second pressure detection signal to the fourth signal input terminal of the slave controller.

[0022] In one embodiment, the overpressure protection module includes: a pressure detection circuit and an overpressure protection circuit;

[0023] The signal input terminal of the pressure detection circuit is used to acquire the pressure detection signal of the airbag. The first signal output terminal of the pressure detection circuit is connected to the first signal input terminal of the overpressure protection circuit and the fourth signal input terminal of the main controller. The second signal output terminal of the pressure detection circuit is connected to the fourth signal input terminal of the slave controller.

[0024] The second signal input terminal of the overpressure protection circuit is connected to the second reset signal output terminal of the main controller, the signal output terminal of the overpressure protection circuit is connected to the third signal input terminal of the air pump drive circuit, and the signal output terminal of the overpressure protection circuit is connected to the third signal input terminal of the main controller and the third signal input terminal of the slave controller.

[0025] In one embodiment, the pressure detection circuit includes: a pressure sensor, a reference voltage supply module, an operational amplifier module, and a pressure follower circuit;

[0026] The pressure sensor is used to monitor the pressure value of the airbag. The signal output terminal of the pressure sensor is connected to the first signal input terminal of the operational amplifier module. The signal output terminal of the reference voltage providing module is connected to the second signal input terminal of the operational amplifier module. The signal output terminal of the operational amplifier module is connected to the signal input terminal of the pressure follower circuit and the first signal input terminal of the overpressure protection circuit. The signal output terminal of the operational amplifier module is connected to the fourth signal input terminal of the main controller. The signal output terminal of the pressure follower circuit is connected to the fourth signal input terminal of the slave controller.

[0027] In one embodiment, the overvoltage protection circuit includes: a second comparator, a second overcurrent reset module, a second feedback module, a second pull-up module, and a second threshold providing module;

[0028] The non-inverting input of the second comparator is connected to the first terminal of the second feedback module. The inverting input of the second comparator receives the power supply voltage through the second overcurrent threshold module. The output of the second comparator is connected to the third signal input of the air pump drive circuit. The signal output of the overcurrent protection circuit is connected to the first signal input of the main controller and the first signal input of the slave controller. The output of the second comparator receives the power supply voltage through the second pull-up module. The second terminal of the second feedback module is connected to the first signal output of the pressure detection circuit. The third terminal of the second feedback module is connected to the output of the second comparator. The first terminal of the second feedback module is connected to the first terminal of the second overcurrent reset module. The second terminal of the second overcurrent reset module is connected to the first reset signal output of the main controller.

[0029] In a second aspect, the present invention provides an air wave therapy device, comprising: an air pump assembly, an air bag, an overpressure protection module, and an air pump control device as described in any of the above claims;

[0030] The output end of the air pump control device is connected to the input end of the air pump assembly, the air outlet end of the air pump assembly is connected to the air inlet end of the airbag, the output end of the overpressure protection module is connected to the input end of the air pump control device, and the overpressure protection module is used to monitor the pressure value of the airbag.

[0031] The output terminal of the air pump control device is used to output a corresponding air pump component control signal according to the pressure value monitored by the overpressure protection module, so as to control the air pump component to inflate the airbag.

[0032] The beneficial effects of the embodiments of the present invention compared with the prior art are as follows:

[0033] The air pump control device of the present invention includes: a main controller, a slave controller, an AND gate module, and an air pump drive circuit. By connecting the monitoring terminals of the main controller and the slave controller, the main controller can output a first control signal based on the working state of the slave controller, and the slave controller can also output a second control signal based on the working state of the main controller. After receiving the first and second control signals, the AND gate module outputs a corresponding air pump power control signal to the air pump drive circuit to control the air pump drive circuit. This ensures that if either controller malfunctions, the other controller can output a corresponding control signal to the AND gate module, thereby controlling the air pump drive circuit to stop working. This prevents controller malfunction from causing main power supply circuit malfunction, reduces the risk of control device malfunction, and improves the safety and reliability of the air wave therapy device. Attached Figure Description

[0034] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments of the present invention will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. 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 an air pump control device provided in an embodiment of the present invention;

[0036] Figure 2 This is a schematic diagram of an air pump control device provided in another embodiment of the present invention;

[0037] Figure 3 and Figure 4 These are two schematic diagrams of an air pump control device provided in another embodiment of the present invention;

[0038] Figure 5 This is a circuit diagram of an overcurrent protection circuit provided in another embodiment of the present invention;

[0039] Figure 6 and Figure 7 These are two schematic diagrams of an air pump control device provided in another embodiment of the present invention;

[0040] Figure 8 This is a circuit diagram of a pressure detection circuit provided in another embodiment of the present invention;

[0041] Figure 9 This is a circuit diagram of an overvoltage protection circuit provided in another embodiment of the present invention;

[0042] Figure 10 This is a schematic diagram of an air wave therapy device provided in an embodiment of the present invention;

[0043] Figure 11 This is a partial circuit diagram of an air pump control device provided in an embodiment of the present invention;

[0044] The components include: 1. Air pump control device; 2. Air pump assembly; 3. Airbag; 4. Overpressure protection module; 01. Main controller; 02. Slave controller; 03. AND gate module; 04. Air pump drive circuit; 05. Overcurrent protection module; 06. Overpressure protection module; 51. Current detection circuit; 52. Overcurrent protection circuit; 61. Pressure detection circuit; 62. Overpressure protection circuit; 501. Current acquisition circuit; 502. Current follower circuit; 503. First overcurrent reset module; 504. First feedback module; 505. First pull-up module; 506. First overcurrent threshold providing module; 601. Pressure sensor; 602. Reference voltage providing module; 603. Operational amplifier module; 604. Pressure follower circuit; 605. Second overcurrent reset module; 606. Second feedback module; 607. Second pull-up module; 608. Second threshold providing module. Detailed Implementation

[0045] To make the technical problems solved, the technical solutions, and the beneficial effects of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0046] In the description of this invention, it should be understood that the terms "longitudinal," "radial," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0047] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0048] To fully understand this invention, detailed structures and steps will be presented in the following description to illustrate the technical solution proposed by this invention. Preferred embodiments of the invention are described in detail below; however, in addition to these detailed descriptions, the invention may have other embodiments.

[0049] Unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure pertains. It will be further understood that the terms used herein should be interpreted as having the same meaning as they mean in the context of this specification and related art, and will not be interpreted in an idealized or overly formal sense unless expressly defined herein.

[0050] In one embodiment, a schematic diagram of an air pump control device is provided, such as... Figure 1 As shown, it includes: a main controller 01, a slave controller 02, an AND gate module 03, and an air pump drive circuit 04; wherein:

[0051] The first signal output terminal of the main controller 01 is connected to the first input terminal of the AND gate module 03, the first signal output terminal of the slave controller 02 is connected to the second input terminal of the AND gate module 03, the output terminal of the AND gate module 03 is connected to the first signal input terminal of the air pump drive circuit 04, the monitoring terminal of the main controller 01 is connected to the monitoring terminal of the slave controller 02, the monitoring terminal of the main controller 01 is used to obtain the working status of the slave controller 02, and the monitoring terminal of the slave controller 02 is used to obtain the working status of the main controller 01;

[0052] The main controller 01 is used to output a first control signal from the first signal output terminal of the main controller 01 to the first input terminal of the AND gate module 03 according to the working state of the slave controller 02. The slave controller 02 is used to output a second control signal from the first signal output terminal of the controller 02 to the second input terminal of the AND gate module 03 according to the working state of the main controller 01.

[0053] The output of AND gate module 03 is used to output a first air pump power control signal to air pump drive circuit 04 according to the first control signal and the second control signal.

[0054] The operation of the air pump control device 1 described above is as follows: When both the main controller 01 and the slave controller 02 are working normally, and the first control signal output by the main controller 01 is a drive control signal, and the second control signal output by the slave controller 02 is also a drive control signal, the AND gate module 03 outputs a drive control signal to the air pump drive circuit 04, so that the air pump drive circuit 04 controls the power supply module to supply power to the air pump assembly, enabling the air pump assembly to inflate the airbag. For example, when both the first control signal output by the main controller 01 and the second control signal output by the slave controller 02 are high-level signals, the AND gate module 03 outputs a high-level signal to the air pump drive circuit 04, so that the air pump drive circuit 04 controls the power supply module to supply power to the air pump assembly. Power is supplied to enable the air pump assembly to inflate the airbag. When both the main controller 01 and the slave controller 02 are operating normally, and both the first control signal output by the main controller 01 and the second control signal output by the slave controller 02 are stop drive control signals, the AND gate module 03 outputs a stop drive control signal to the air pump drive circuit 04. This stops the power supply module from supplying power to the air pump assembly, thereby stopping the air pump assembly from inflating the airbag. For example, when both the first control signal output by the main controller 01 and the second control signal output by the slave controller 02 are low-level signals, the AND gate module 03 outputs a low-level signal to the air pump drive circuit 04, which then stops the power supply module from supplying power to the air pump assembly. The pump assembly is powered, thus stopping the air pump assembly from inflating the airbag. When either the main controller 01 or the slave controller 02 malfunctions and cannot output a stop drive control signal, the other controller outputs a stop drive signal to the AND gate module 03. The AND gate module 03 then outputs a stop drive control signal to the air pump drive circuit 04, which controls the power module to stop supplying power to the air pump assembly, preventing continuous operation and over-inflation of the airbag, thus endangering the user's safety. For example, when the main controller 01 malfunctions and outputs a high-level control signal, the slave controller 02 detects the malfunction and outputs a low-level control signal. When the second control signal output by the slave controller 02 is high, the master controller 01 detects the fault and outputs a low-level signal. The first control signal output by the master controller 01 is low, causing the AND gate module 03 to output a low-level signal to the air pump drive circuit 04. This, in turn, controls the power module to stop supplying power to the air pump assembly, preventing continuous operation and over-inflation of the airbag, which could threaten the user's safety.

[0055] The air pump control device 1 of this embodiment includes: a main controller 01, a slave controller 02, an AND gate module 03, and an air pump drive circuit 04. By connecting the monitoring terminal of the main controller 01 to the monitoring terminal of the slave controller 02, the main controller 01 can output a first control signal according to the working state of the slave controller 02, and the slave controller 02 can also output a second control signal according to the working state of the main controller 01. After receiving the first and second control signals, the AND gate module 03 outputs a corresponding air pump power control signal to the air pump drive circuit 04 to control the air pump drive circuit 04. This allows the other controller to output a corresponding control signal to the AND gate module 03 when either controller malfunctions, so that the AND gate module 03 can control the air pump drive circuit 04 to stop working. This avoids the main power supply circuit from malfunctioning due to the controller malfunction, reduces the risk of control device malfunction, and improves the safety and reliability of the air wave therapy device.

[0056] In one embodiment, such as Figure 2 As shown, a schematic diagram of an air pump control device 1 is provided. Figure 1 Based on the schematic diagram of the air pump control device 1 shown, it also includes: an overcurrent protection module 05; wherein:

[0057] The first signal input terminal of the overcurrent protection module 05 is used to acquire the current detection signal of the air pump assembly. The first signal output terminal of the overcurrent protection module 05 is connected to the second signal input terminal of the air pump drive circuit 04. The first signal output terminal of the overcurrent protection module 05 is connected to the first signal input terminal of the main controller 01 and the first signal input terminal of the slave controller 02. The second signal input terminal of the overcurrent protection module 05 is connected to the first reset signal output terminal of the main controller 01. The second signal output terminal of the overcurrent protection module 05 is connected to the second signal input terminal of the main controller 01. The third signal output terminal of the overcurrent protection module 05 is connected to the second signal input terminal of the slave controller 02.

[0058] The overcurrent protection module 05 is used to output a second air pump power control signal from its first signal output terminal based on the current detection signal. The overcurrent protection module 05 is also used to output a second air pump power control signal from its first signal output terminal based on the first reset signal output from the first reset signal output terminal of the main controller 01. The second signal output terminal of the overcurrent protection module 05 is used to output a first current signal to the second signal input terminal of the main controller 01. The third signal output terminal of the overcurrent protection module 05 is used to output a second current signal to the fourth signal input terminal of the slave controller 02.

[0059] The working process of the above-mentioned air pump control device 1 is as follows: When the air pump drive circuit 04 receives the drive control signal, the air pump drive circuit 04 controls the power supply module to supply power to the air pump assembly. At this time, the air pump assembly inflates the airbag. The overcurrent protection module 05 obtains the current detection signal of the air pump assembly and outputs the current detection signal to the main controller 01 and the slave controller 02 for monitoring. When the main controller 01 and / or the slave controller 02 detect that the current detection signal is not within the first preset range, the overcurrent protection module 05 can output a stop drive control signal to the AND gate module 03. The AND gate module 03 outputs a stop drive control signal to the air pump drive circuit 04, and then the air pump drive circuit 04 controls the power supply module to stop supplying power to the air pump assembly. At the same time, the overcurrent protection module 05 determines whether the current detection signal is within the first preset range. If the overcurrent protection module 05 outputs the second air pump power control signal as a drive control signal, the air pump drive circuit 04 continues to control the power module to supply power to the air pump assembly, so that the air pump assembly can continue to inflate the airbag; if the overcurrent protection module 05 outputs the second air pump power control signal as a stop drive control signal, so that the air pump drive circuit 04 controls the power module to stop supplying power to the air pump assembly. When the main controller 01 detects that the current detection signal collected by the overcurrent protection module 05 is within the first preset range, the main controller 01 outputs the first reset signal to the overcurrent protection module 05, so as to control the second air pump power control signal output by the overcurrent protection module 05 as a drive control signal, so that the air pump drive circuit 04 can continue to control the power module to supply power to the air pump assembly, thereby enabling the air pump assembly to continue to inflate the airbag.

[0060] In this embodiment, the air pump control device 1 uses an overcurrent protection module 05 to monitor the current detection signal of the air pump assembly. When the motor drive circuit fails and the current detection signal is not within the first preset range, it can output a stop drive control signal to the air pump drive circuit 04 to control the power supply module to stop supplying power to the air pump assembly, thereby preventing the air pump assembly from working continuously and over-inflating the airbag, which could threaten the user's safety and improve the safety and reliability of the air pump control device 1.

[0061] In one embodiment, such as Figure 3 As shown, a schematic diagram of an air pump control device is provided. Figure 2 Based on the schematic diagram of the air pump control device shown, the overcurrent protection module 05 includes: a current detection circuit 51 and an overcurrent protection circuit 52; wherein:

[0062] The signal input terminal of the current detection circuit 51 is used to acquire the current detection signal of the air pump assembly. The first signal output terminal of the current detection circuit 51 is connected to the first signal input terminal of the overcurrent protection circuit 52 and the second signal input terminal of the main controller 01. The second signal output terminal of the current detection circuit 51 is connected to the second signal input terminal of the slave controller 02.

[0063] The second signal input terminal of the overcurrent protection circuit 52 is connected to the first reset signal output terminal of the main controller 01, the signal output terminal of the overcurrent protection circuit 52 is connected to the second signal input terminal of the air pump drive circuit 04, and the signal output terminal of the overcurrent protection circuit 52 is connected to the first signal input terminal of the main controller 01 and the first signal input terminal of the slave controller 02.

[0064] The working process of the air pump control device 1 is as follows: When the air pump drive circuit 04 receives the drive control signal, the air pump drive circuit 04 controls the power supply module to supply power to the air pump assembly. At this time, the air pump assembly inflates the airbag. The current detection circuit 51 obtains the current detection signal of the air pump assembly and outputs the current detection signal to the main controller 01, the slave controller 02 and the overcurrent protection circuit 52. The main controller 01 and the slave controller 02 monitor the current detection signal. When the main controller 01 and / or the slave controller 02 detect that the current detection signal is not within the first preset range, they can output a stop drive control signal to the AND gate module 03. Then, the AND gate module 03 can output a stop drive control signal to the air pump drive circuit 04, and the air pump drive circuit 04 controls the power supply module to stop supplying power to the air pump assembly. At the same time, the overcurrent protection circuit 52 determines whether the current detection signal is within the first preset range. If the overcurrent protection circuit 52 outputs the second air pump power control signal as a drive control signal, the air pump drive circuit 04 continues to control the power module to supply power to the air pump assembly, so that the air pump assembly can continue to inflate the airbag; if the overcurrent protection circuit 52 outputs the second air pump power control signal as a stop drive control signal, so that the air pump drive circuit 04 controls the power module to stop supplying power to the air pump assembly, avoiding the air pump assembly from working continuously and over-inflating the airbag. When the main controller 01 detects that the current detection signal collected by the overcurrent protection module 05 is within the first preset range, the main controller 01 outputs the first reset signal to the overcurrent protection circuit 52, so as to control the second air pump power control signal output by the overcurrent protection circuit 52 as a drive control signal, the air pump drive circuit 04 can continue to control the power module to supply power to the air pump assembly, so that the air pump assembly can continue to inflate the airbag.

[0065] In this embodiment, the air pump control device 1 uses an overcurrent protection module 05 to monitor the current detection signal of the air pump assembly. When the motor drive circuit fails and the current detection signal is not within the first preset range, it can output a stop drive control signal to the air pump drive circuit 04 to control the power supply module to stop supplying power to the air pump assembly, thereby preventing the air pump assembly from working continuously and over-inflating the airbag, which could threaten the user's safety and improve the safety and reliability of the air pump control device 1.

[0066] In one embodiment, such as Figure 4 As shown, a schematic diagram of an air pump control device is provided. Figure 3 Based on the schematic diagram of the air pump control device 1 shown, its current detection circuit 51 includes: a current acquisition circuit 501 and a current follower circuit 502; wherein:

[0067] The signal input terminal of the current acquisition circuit 501 is used to acquire the current detection signal of the air pump assembly. The first signal output terminal of the current acquisition circuit 501 is connected to the first signal input terminal of the overcurrent protection circuit 52 and the second signal input terminal of the main controller 01. The second signal output terminal of the current acquisition circuit 501 is connected to the first terminal of the current follower circuit 502. The signal output terminal of the current follower circuit 502 is connected to the second signal input terminal of the slave controller 02.

[0068] In practical applications, its current acquisition circuit 501 can be used as follows: Figure 4 As shown, it is composed of resistors R24, R36, R37, R40, R41, R39, comparator U8A, and capacitors C22 and C23, and its current follower circuit 502 can also be used as shown. Figure 5 As shown, it consists of resistor R42 and comparator U8B. In practical applications, it is not limited to this and can be determined according to the specific application environment. All of them are within the protection scope of this application.

[0069] The working process of the above-mentioned air pump control device 1 is as follows:

[0070] After receiving the current detection signal, the current acquisition circuit 501 outputs it to the main controller 01, the overcurrent protection circuit 52, and the current follower circuit 502. The main controller 01 monitors the current detection signal, and the overcurrent protection circuit 52 determines whether the current detection signal is within the first preset range. At the same time, the current follower circuit 502 outputs it to the slave controller 02 after receiving the current detection signal, so that the slave controller 02 can monitor the current detection signal.

[0071] In this embodiment, the air pump control device 1 uses a current acquisition circuit 501 and a current follower circuit 502 to form a current detection circuit 51. The current acquisition circuit 501 outputs the current detection signal to the main controller 01, the overcurrent protection circuit 52 and the current follower circuit 502, and the current follower circuit 502 outputs the current detection signal to the slave controller 02. This avoids the current detection signal being output to the main controller 01 and the slave controller 02 through the same path, thus avoiding unexpected situations caused by signal crosstalk.

[0072] In one embodiment, a circuit diagram of an overcurrent protection circuit is provided, specifically, as shown below. Figure 5 As shown, its overcurrent protection circuit 52 includes: a first comparator U10A, a first overcurrent reset module 503, a first feedback module 504, a first pull-up module 505, and a first overcurrent threshold providing module 506; wherein:

[0073] The non-inverting input of the first comparator U10A is connected to the first terminal of the first feedback module 504. The inverting input of the first comparator U10A receives the power supply voltage through the first overcurrent threshold module 506. The output of the first comparator U10A is connected to the second signal input of the air pump drive circuit 04. The signal output of the overcurrent protection circuit 52 is connected to the first signal input of the main controller 01 and the first signal input of the slave controller 02. The output of the first comparator U10A receives the power supply voltage through the first pull-up module 505. The second terminal of the first feedback module 504 is connected to the first signal output of the current detection circuit 51. The third terminal of the first feedback module 504 is connected to the output of the first comparator U10A. The first terminal of the first feedback module 504 is connected to the first terminal of the first overcurrent reset module 503. The second terminal of the first overcurrent reset module 503 is connected to the first reset signal output of the main controller 01.

[0074] Optionally, in practical applications, a 3.3V power supply can be used as the power supply voltage to achieve the corresponding function. However, practical applications are not limited to this and can be determined according to the specific application environment, all of which are within the scope of protection of this application.

[0075] In practical applications, its first overcurrent reset module 503 can be used as follows: Figure 5 As shown, it is composed of resistors R35 and R38 and switching transistor Q5, and its first feedback module 504 can also be configured as follows. Figure 5 As shown, it is composed of resistors R30 and R34 and diode D3. Optionally, its first overcurrent threshold providing module 506 can be composed of resistors R26 and R28, and its first pull-up module 505 can be composed of only one resistor R27. In practical applications, it is not limited to this, depending on the specific application environment, and all are within the protection scope of this application.

[0076] The working process of the above-mentioned air pump control device 1 is as follows: the non-inverting input terminal of the first comparator U10A receives the current detection signal through the first feedback module 504, and at the same time, the inverting input terminal of the first comparator U10A receives the power supply voltage through the first overcurrent threshold providing module 506 to obtain the overcurrent protection threshold voltage. After comparing the current detection signal and the overcurrent protection threshold voltage, the corresponding second air pump power control signal is output to the main controller 01, the slave controller 02 and the air pump drive circuit 04, so that the main controller 01 and the slave controller 02 can monitor the working current status of the air pump assembly through the overcurrent protection circuit 52. The first pull-up module 505 is used to pull up the second air pump power control signal. At the same time, the second air pump power control signal is fed back through the first feedback module 504 and input to the non-inverting input terminal of the first comparator U10A. When the main controller 01 detects that the current detection signal collected by the current detection circuit 51 is within the first preset range, it outputs the first reset signal to the non-inverting input terminal of the first comparator U10A through the first overcurrent reset module 503 and the first feedback module 504, so that the second air pump power control signal output by the first comparator U10A is the drive control signal.

[0077] In this embodiment, the air pump control device 1 compares the current detection signal and the overcurrent protection threshold voltage using a first comparator U10A, and then outputs a corresponding second air pump power control signal to the main controller 01, the slave controller 02, and the air pump drive circuit 04. This enables the main controller 01 and the slave controller 02 to monitor the operating current status of the air pump assembly through the overcurrent protection circuit 52. Simultaneously, when the current detection signal is within a first preset range, the main controller 01 can also output a first reset signal to the non-inverting input terminal of the first comparator U10A through the first overcurrent reset module 503 and the first feedback module 504, thereby controlling the second air pump power control signal output by the first comparator U10A as the drive control signal.

[0078] In one embodiment, such as Figure 6 As shown, a schematic diagram of an air pump control device 1 is provided. Figure 1 Based on the schematic diagram of the air pump control device 1 shown, the air pump control device 1 further includes: an overpressure protection module 06; wherein:

[0079] The first signal input terminal of the overpressure protection module 06 is used to acquire the pressure detection signal of the airbag. The first signal output terminal of the overpressure protection module 06 is connected to the third signal input terminal of the air pump drive circuit 04. The first signal output terminal of the overpressure protection module 06 is connected to the third signal input terminal of the main controller 01 and the third signal input terminal of the slave controller 02. The second signal input terminal of the overpressure protection module 06 is connected to the second reset signal output terminal of the main controller 01. The second signal output terminal of the overpressure protection module 06 is connected to the fourth signal input terminal of the main controller 01. The third signal output terminal of the overpressure protection module 06 is connected to the fourth signal input terminal of the slave controller 02.

[0080] The overpressure protection module 06 is used to output a third air pump power control signal from its first signal output terminal based on the pressure detection signal. The overpressure protection module 06 is also used to output a third air pump power control signal from its first signal output terminal based on the second reset signal output from the second reset signal output terminal of the main controller 01. The second signal output terminal of the overpressure protection module 06 is used to output a first pressure detection signal to the fourth signal input terminal of the main controller 01. The third signal output terminal of the overpressure protection module 06 is used to output a second pressure detection signal to the fourth signal input terminal of the slave controller 02.

[0081] The working process of the above-mentioned air pump control device 1 is as follows: When the air pump drive circuit 04 receives the drive control signal, the air pump drive circuit 04 controls the power supply module to supply power to the air pump assembly. At this time, the air pump assembly inflates the airbag. The overpressure protection module 06 obtains the pressure detection signal of the airbag and outputs the pressure detection signal to the main controller 01 and the slave controller 02 for monitoring. When the main controller 01 and / or the slave controller 02 detect that the pressure detection signal is not within the second preset range, the main controller 01 and / or the slave controller 02 can output a stop drive control signal to the AND gate module 03. The AND gate module 03 outputs a stop drive control signal to the air pump drive circuit 04, and then the air pump drive circuit 04 controls the power supply module to stop supplying power to the air pump assembly to avoid the air pump assembly from over-inflating the airbag. At the same time, the overpressure protection module 06 determines whether the pressure detection signal is within the second preset range. If the overpressure protection module 06 outputs the third air pump power control signal as a drive control signal, the air pump drive circuit 04 continues to control the power module to supply power to the air pump assembly, so that the air pump assembly can continue to inflate the airbag; if the overpressure protection module 06 outputs the third air pump power control signal as a stop drive control signal, so that the air pump drive circuit 04 controls the power module to stop supplying power to the air pump assembly. When the main controller 01 detects that the pressure detection signal collected by the overpressure protection module 06 is within the second preset range, the main controller 01 outputs the second reset signal to the overpressure protection module 06 to control the third air pump power control signal output by the overpressure protection module 06 as a drive control signal, so that the air pump drive circuit 04 can continue to control the power module to supply power to the air pump assembly, thereby enabling the air pump assembly to continue to inflate the airbag.

[0082] In this embodiment, the air pump control device 1 uses an overpressure protection module 06 to monitor the pressure detection signal of the airbag. When the airbag is over-inflated and the pressure detection signal is not within the second preset range, a stop drive control signal is output to the air pump drive circuit 04 to control the power supply module to stop supplying power to the air pump assembly. This prevents the air pump assembly from working continuously and over-inflating the airbag, which could threaten the user's safety, and improves the safety and reliability of the air pump control device 1.

[0083] In one embodiment, such as Figure 7 As shown, a schematic diagram of an air pump control device is provided. Figure 6 Based on the schematic diagram of the air pump control device 1 shown, the overpressure protection module 06 includes: a pressure detection circuit 61 and an overpressure protection circuit 62; wherein:

[0084] The signal input terminal of the pressure detection circuit 61 is used to acquire the pressure detection signal of the airbag. The first signal output terminal of the pressure detection circuit 61 is connected to the first signal input terminal of the overpressure protection circuit 62 and the fourth signal input terminal of the main controller 01. The second signal output terminal of the pressure detection circuit 61 is connected to the fourth signal input terminal of the slave controller 02.

[0085] The second signal input terminal of the overpressure protection circuit 62 is connected to the second reset signal output terminal of the main controller 01, the signal output terminal of the overpressure protection circuit 62 is connected to the third signal input terminal of the air pump drive circuit 04, and the signal output terminal of the overpressure protection circuit 62 is connected to the third signal input terminal of the main controller 01 and the third signal input terminal of the slave controller 02.

[0086] The working process of the above-mentioned air pump control device 1 is as follows: When the air pump drive circuit 04 receives the drive control signal, the air pump drive circuit 04 controls the power supply module to supply power to the air pump assembly. At this time, the air pump assembly inflates the airbag. The pressure detection circuit 61 obtains the pressure detection signal of the airbag and outputs the pressure detection signal to the main controller 01, the slave controller 02 and the overpressure protection circuit 62. The main controller 01 and the slave controller 02 monitor the pressure detection signal. When the main controller 01 and / or the slave controller 02 detect that the pressure detection signal is not within the second preset range, they can output a stop drive control signal to the AND gate module 03. Then, the stop drive control signal can be output to the air pump drive circuit 04 through the AND gate module 03. The air pump drive circuit 04 controls the power supply module to stop supplying power to the air pump assembly. At the same time, the overpressure protection circuit 62 determines whether the pressure detection signal is within the second preset range. If the overpressure protection circuit 62 outputs the third air pump power control signal as a drive control signal, the air pump drive circuit 04 continues to control the power module to supply power to the air pump assembly, so that the air pump assembly can continue to inflate the airbag; if the overpressure protection circuit 62 outputs the third air pump power control signal as a stop drive control signal, so that the air pump drive circuit 04 controls the power module to stop supplying power to the air pump assembly, avoiding the air pump assembly from working continuously and over-inflating the airbag. When the main controller 01 detects that the pressure detection signal collected by the overpressure protection module 06 is within the second preset range, the main controller 01 outputs the second reset signal to the overpressure protection circuit 62, so as to control the third air pump power control signal output by the overpressure protection circuit 62 as a drive control signal, the air pump drive circuit 04 can continue to control the power module to supply power to the air pump assembly, so that the air pump assembly can continue to inflate the airbag.

[0087] In this embodiment, the air pump control device 1 uses an overpressure protection module 06 to monitor the pressure detection signal of the airbag. When the airbag is over-inflated and the pressure detection signal is not within the second preset range, a stop drive control signal is output to the air pump drive circuit 04 to control the power supply module to stop supplying power to the air pump assembly. This prevents the air pump assembly from working continuously and over-inflating the airbag, which could threaten the user's safety and improves the safety and reliability of the air pump control device 1.

[0088] In one embodiment, a circuit diagram of a pressure detection circuit is provided, specifically, as shown below. Figure 8 As shown, its pressure detection circuit 61 includes: a pressure sensor 601, a reference voltage supply module 602, an operational amplifier module 603, and a pressure follower circuit 604; wherein:

[0089] Pressure sensor 601 is used to monitor the pressure value of the airbag. The signal output terminal of pressure sensor 601 is connected to the first signal input terminal of operational amplifier module 603. The signal output terminal of reference voltage supply module 602 is connected to the second signal input terminal of operational amplifier module 603. The signal output terminal of operational amplifier module 603 is connected to the signal input terminal of pressure follower circuit 604 and the first signal input terminal of overpressure protection circuit 62. The signal output terminal of operational amplifier module 603 is connected to the fourth signal input terminal of main controller 01, and the signal output terminal of pressure follower circuit 604 is connected to the fourth signal input terminal of slave controller 02.

[0090] In practical applications, its pressure sensor 601 can be used as follows: Figure 8 As shown, it is composed of sensor S1, resistors R2 and R5, and capacitors C1, C3, and C4, and its reference voltage providing module 602 can also be used as follows. Figure 8 As shown, the circuit consists of resistors R7, R12, and R9, capacitor C6, and comparator U4. Optionally, the operational amplifier module 603 can be composed of resistors R1 and R3, capacitor C2, and operational amplifier chip U2, and the pressure follower circuit 604 can also be composed of comparator U3 and resistor R4. In practical applications, the circuit is not limited to these configurations and can be customized according to the specific application environment; all of these are within the scope of protection of this application.

[0091] The working process of the above-mentioned air pump control device 1 is as follows: After the pressure sensor 601 detects the pressure value of the airbag, it outputs to the operational amplifier module 603. The operational amplifier module 603 receives the reference voltage through the reference voltage supply module 602 and outputs the pressure detection signal to the pressure follower circuit 604, the overpressure protection circuit 62 and the main controller 01. The pressure follower circuit 604 outputs the received pressure detection signal to the slave controller 02.

[0092] In this embodiment, the air pump control device 1 monitors the pressure value of the airbag using a pressure sensor 601. After receiving the pressure value and reference voltage of the airbag using an operational amplifier module 603, it outputs the pressure detection signal to the pressure follower circuit 604, the overpressure protection circuit 62, and the main controller 01. After receiving the pressure detection signal, the pressure follower circuit 604 outputs it to the slave controller 02, thus avoiding the pressure detection signal being output to the main controller 01 and the slave controller 02 through the same path, and also avoiding unexpected situations caused by signal crosstalk.

[0093] In one embodiment, a circuit diagram of an overvoltage protection circuit is provided, specifically, as shown below. Figure 9 As shown, its overvoltage protection circuit 62 includes: a second comparator U10B, a second overcurrent reset module 605, a second feedback module 606, a second pull-up module 607, and a second threshold providing module 608; wherein:

[0094] The non-inverting input of the second comparator U10B is connected to the first terminal of the second feedback module 606. The inverting input of the second comparator U10B receives the power supply voltage through the second overcurrent threshold module. The output of the second comparator U10B is connected to the third signal input of the air pump drive circuit 04. The signal output of the overcurrent protection circuit 52 is connected to the first signal input of the main controller 01 and the first signal input of the slave controller 02. The output of the second comparator U10B receives the power supply voltage through the second pull-up module 607. The second terminal of the second feedback module 606 is connected to the first signal output of the pressure detection circuit 61. The third terminal of the second feedback module 606 is connected to the output of the second comparator U10B. The first terminal of the second feedback module 606 is connected to the first terminal of the second overcurrent reset module 605. The second terminal of the second overcurrent reset module 605 is connected to the first reset signal output of the main controller 01.

[0095] Optionally, in practical applications, a 3.3V power supply can be used as the power supply voltage to achieve the corresponding function. However, practical applications are not limited to this and can be determined according to the specific application environment, all of which are within the scope of protection of this application.

[0096] In practical applications, its second overcurrent reset module 605 can be used as follows: Figure 9 As shown, it is composed of resistors R14 and R15 and switch Q1, and its second feedback module 606 can also be configured as follows. Figure 9 As shown, it is composed of resistors R11 and R13 and diode D1. Optionally, its second overcurrent threshold providing module can be composed of resistors R10 and R6, and its second pull-up module 607 can also be composed of only one resistor R8. In practical applications, it is not limited to this, depending on the specific application environment, and all are within the protection scope of this application.

[0097] The working process of the above-mentioned air pump control device 1 is as follows: the non-inverting input terminal of the second comparator U10B receives the pressure detection signal through the second feedback module 606, and at the same time, the inverting input terminal of the second comparator U10B receives the power supply voltage through the second threshold providing module 608 to obtain the overvoltage protection threshold voltage. After comparing the pressure detection signal and the overvoltage protection threshold voltage, the corresponding second air pump power control signal is output to the main controller 01, the slave controller 02 and the air pump drive circuit 04, so that the main controller 01 and the slave controller 02 can monitor the working current status of the air pump assembly through the overcurrent protection circuit 52. The second pull-up module 607 is used to pull up the second air pump power control signal. At the same time, the second air pump power control signal is fed back through the second feedback module 606 and input to the non-inverting input terminal of the second comparator U10B. When the main controller 01 detects that the pressure detection signal collected by the current detection circuit 51 is within the second preset range, the second reset signal is output to the non-inverting input terminal of the second comparator U10B through the second overcurrent reset module 605 and the second feedback module 606, so that the second air pump power control signal output by the second comparator U10B becomes the drive control signal.

[0098] In this embodiment, the air pump control device 1 compares the pressure detection signal and the overvoltage protection threshold voltage using the second comparator U10B, and then outputs a corresponding second air pump power control signal to the main controller 01, the slave controller 02, and the air pump drive circuit 04. This enables the main controller 01 and the slave controller 02 to monitor the operating current status of the air pump assembly through the overcurrent protection circuit 52. Simultaneously, when the pressure detection signal is within the second preset range, the main controller 01 can also output a second reset signal to the non-inverting input terminal of the second comparator U10B through the second overcurrent reset module 605 and the second feedback module 606, thereby controlling the second air pump power control signal output by the second comparator U10B as the drive control signal.

[0099] In one embodiment, a schematic diagram of an air wave therapy device is provided, as shown below. Figure 10 As shown, the air wave therapy device includes: an air pump assembly, an airbag, an overpressure protection module 06, and an air pump control device 1 as described in any of the above embodiments; wherein:

[0100] The output end of the air pump control device 1 is connected to the input end of the air pump assembly, the air outlet end of the air pump assembly is connected to the air inlet end of the airbag, the output end of the overpressure protection module 06 is connected to the input end of the air pump control device 1, and the overpressure protection module 06 is used to monitor the pressure value of the airbag.

[0101] The output of the air pump control device 1 is used to output the corresponding air pump component control signal according to the pressure value monitored by the overpressure protection module 06, so as to control the air pump component to inflate the airbag.

[0102] The working process of the above-mentioned air wave therapy device is as follows: When the air wave therapy device is working, the air pump control device 1 controls the air pump assembly to inflate the airbag, and the overpressure protection module 06 monitors the pressure value of the airbag. When the pressure value of the airbag is not within the preset range, the air pump control device 1 outputs a stop drive signal to the air pump drive assembly.

[0103] The air wave therapy device of the medical temperature controller in this embodiment drives the air pump assembly by using the air pump control device 1 as described in any of the above embodiments, and uses the overpressure protection module 06 to monitor the pressure value of the air bag, so as to avoid the air pump being over-inflated when the air pump control device 1 fails, which would threaten the safety of the user, thus improving the safety and reliability of the air wave therapy device.

[0104] In the above Figures 1 to 10 Based on the air pump control device 1 shown, such as Figure 11 As shown, a partial circuit diagram of an air pump control device is provided. The air pump drive circuit 04 can be composed of resistors R32, R33, R29, R31, R25, R22, R23, diodes D4, D5, capacitors C18, C19, C20, C21, and switching transistors Q4, Q3, Q2. Alternatively, an AND gate chip U6 can be used as an AND gate module 03 to achieve the corresponding function. In practical applications, it is not limited to this and depends on the specific application environment. All of these are within the protection scope of this application.

[0105] Specifically, the first terminal of the AND gate chip U6, Matar-PUMU-DC, is connected to the main controller 01 to receive the first control signal output by the main controller 01. The second terminal of the AND gate chip U6, Stave-PUMU-DC, is connected to the slave controller 02 to receive the second control signal output by the slave controller 02. The second signal input terminal of the air pump drive circuit 04, PUMU-Current-Over, is used to receive the second air pump power control signal output by the overcurrent protection module 05. The third signal input terminal of the air pump drive circuit 04, PRE-Over, is used to receive the third air pump power control signal output by the overcurrent protection module 05.

[0106] The above-described embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention, and should all be included within the protection scope of the present invention.

Claims

1. An air pump control device, characterized in that, include: The system comprises a main controller, a slave controller, an AND gate module, an air pump drive circuit, an air pump assembly, and an airbag; among which, The first signal output terminal of the main controller is connected to the first input terminal of the AND gate module, the first signal output terminal of the slave controller is connected to the second input terminal of the AND gate module, the output terminal of the AND gate module is connected to the first signal input terminal of the air pump drive circuit, the monitoring terminal of the main controller is connected to the monitoring terminal of the slave controller, the monitoring terminal of the main controller is used to obtain the working status of the slave controller, and the monitoring terminal of the slave controller is used to obtain the working status of the main controller. The master controller is configured to output a first control signal from the first signal output terminal of the master controller to the first input terminal of the AND gate module according to the working state of the slave controller; the slave controller is configured to output a second control signal from the first signal output terminal of the slave controller to the second input terminal of the AND gate module according to the working state of the master controller. The output of the AND gate module is used to output a first air pump power control signal to the air pump drive circuit according to the first control signal and the second control signal. The air pump control device also includes: an overcurrent protection module; The first signal input terminal of the overcurrent protection module is used to acquire the current detection signal of the air pump assembly. The first signal output terminal of the overcurrent protection module is connected to the second signal input terminal of the air pump drive circuit. The first signal output terminal of the overcurrent protection module is connected to the first signal input terminal of the main controller and the first signal input terminal of the slave controller. The second signal input terminal of the overcurrent protection module is connected to the first reset signal output terminal of the main controller. The second signal output terminal of the overcurrent protection module is connected to the second signal input terminal of the main controller. The third signal output terminal of the overcurrent protection module is connected to the second signal input terminal of the slave controller. The air pump control device also includes: an overpressure protection module; The first signal input terminal of the overpressure protection module is used to acquire the pressure detection signal of the airbag. The first signal output terminal of the overpressure protection module is connected to the third signal input terminal of the air pump drive circuit. The first signal output terminal of the overpressure protection module is connected to the third signal input terminal of the main controller and the third signal input terminal of the slave controller. The second signal input terminal of the overpressure protection module is connected to the second reset signal output terminal of the main controller. The second signal output terminal of the overpressure protection module is connected to the fourth signal input terminal of the main controller. The third signal output terminal of the overpressure protection module is connected to the fourth signal input terminal of the slave controller.

2. The air pump control device as described in claim 1, characterized in that, The overcurrent protection module is used to output a second air pump power control signal from the first signal output terminal of the overcurrent protection module based on the current detection signal. The overcurrent protection module is also used to output a second air pump power control signal from the first signal output terminal of the main controller based on the first reset signal output terminal of the main controller. The second signal output terminal of the overcurrent protection module is used to output a first current signal to the second signal input terminal of the main controller. The third signal output terminal of the overcurrent protection module is used to output a second current signal to the fourth signal input terminal of the slave controller.

3. The air pump control device as described in claim 2, characterized in that, The overcurrent protection module includes: a current detection circuit and an overcurrent protection circuit; The signal input terminal of the current detection circuit is used to acquire the current detection signal of the air pump assembly. The first signal output terminal of the current detection circuit is connected to the first signal input terminal of the overcurrent protection circuit and the second signal input terminal of the main controller. The second signal output terminal of the current detection circuit is connected to the second signal input terminal of the slave controller. The second signal input terminal of the overcurrent protection circuit is connected to the first reset signal output terminal of the main controller, the signal output terminal of the overcurrent protection circuit is connected to the second signal input terminal of the air pump drive circuit, and the signal output terminal of the overcurrent protection circuit is connected to the first signal input terminal of the main controller and the first signal input terminal of the slave controller.

4. The air pump control device as described in claim 3, characterized in that, The current detection circuit includes: a current acquisition circuit and a current follower circuit; The signal input terminal of the current acquisition circuit is used to acquire the current detection signal of the air pump assembly. The first signal output terminal of the current acquisition circuit is connected to the first signal input terminal of the overcurrent protection circuit and the second signal input terminal of the main controller. The second signal output terminal of the current acquisition circuit is connected to the first terminal of the current follower circuit. The signal output terminal of the current follower circuit is connected to the second signal input terminal of the slave controller.

5. The air pump control device as described in claim 3, characterized in that, The overcurrent protection circuit includes: a first comparator, a first overcurrent reset module, a first feedback module, a first pull-up module, and a first overcurrent threshold providing module; The non-inverting input of the first comparator is connected to the first terminal of the first feedback module. The inverting input of the first comparator receives the power supply voltage through the first overcurrent threshold module. The output of the first comparator is connected to the second signal input of the air pump drive circuit. The signal output of the overcurrent protection circuit is connected to the first signal input of the main controller and the first signal input of the slave controller. The output of the first comparator receives the power supply voltage through the first pull-up module. The second terminal of the first feedback module is connected to the first signal output of the current detection circuit. The third terminal of the first feedback module is connected to the output of the first comparator. The first terminal of the first feedback module is connected to the first terminal of the first overcurrent reset module. The second terminal of the first overcurrent reset module is connected to the first reset signal output of the main controller.

6. The air pump control device as described in claim 1, characterized in that... The overpressure protection module is used to output a third air pump power control signal from the first signal output terminal of the overpressure protection module based on the pressure detection signal. The overpressure protection module is also used to output a third air pump power control signal from the first signal output terminal of the overpressure protection module based on the second reset signal output terminal of the main controller. The second signal output terminal of the overpressure protection module is used to output a first pressure detection signal to the fourth signal input terminal of the main controller. The third signal output terminal of the overpressure protection module is used to output a second pressure detection signal to the fourth signal input terminal of the slave controller.

7. The air pump control device as described in claim 6, characterized in that, The overpressure protection module includes: a pressure detection circuit and an overpressure protection circuit; The signal input terminal of the pressure detection circuit is used to acquire the pressure detection signal of the airbag. The first signal output terminal of the pressure detection circuit is connected to the first signal input terminal of the overpressure protection circuit and the fourth signal input terminal of the main controller. The second signal output terminal of the pressure detection circuit is connected to the fourth signal input terminal of the slave controller. The second signal input terminal of the overpressure protection circuit is connected to the second reset signal output terminal of the main controller, the signal output terminal of the overpressure protection circuit is connected to the third signal input terminal of the air pump drive circuit, and the signal output terminal of the overpressure protection circuit is connected to the third signal input terminal of the main controller and the third signal input terminal of the slave controller.

8. The air pump control device as described in claim 7, characterized in that, The pressure detection circuit includes: a pressure sensor, a reference voltage supply module, an operational amplifier module, and a pressure follower circuit; The pressure sensor is used to monitor the pressure value of the airbag. The signal output terminal of the pressure sensor is connected to the first signal input terminal of the operational amplifier module. The signal output terminal of the reference voltage providing module is connected to the second signal input terminal of the operational amplifier module. The signal output terminal of the operational amplifier module is connected to the signal input terminal of the pressure follower circuit and the first signal input terminal of the overpressure protection circuit. The signal output terminal of the operational amplifier module is connected to the fourth signal input terminal of the main controller. The signal output terminal of the pressure follower circuit is connected to the fourth signal input terminal of the slave controller.

9. The air pump control device as described in claim 7, characterized in that, The overvoltage protection circuit includes: a second comparator, a second overcurrent reset module, a second feedback module, a second pull-up module, and a second overcurrent threshold providing module; The non-inverting input of the second comparator is connected to the first terminal of the second feedback module. The inverting input of the second comparator receives the power supply voltage through the second overcurrent threshold module. The output of the second comparator is connected to the third signal input of the air pump drive circuit. The signal output of the overpressure protection circuit is connected to the first signal input of the main controller and the first signal input of the slave controller. The output of the second comparator receives the power supply voltage through the second pull-up module. The second terminal of the second feedback module is connected to the first signal output of the pressure detection circuit. The third terminal of the second feedback module is connected to the output of the second comparator. The first terminal of the second feedback module is connected to the first terminal of the second overcurrent reset module. The second terminal of the second overcurrent reset module is connected to the second reset signal output of the main controller.

10. An air wave therapy device, characterized in that, Includes the air pump control device as described in any one of claims 1 to 9; The output end of the air pump control device is connected to the input end of the air pump assembly, the air outlet end of the air pump assembly is connected to the air inlet end of the airbag, the output end of the overpressure protection module is connected to the input end of the air pump control device, and the overpressure protection module is used to monitor the pressure value of the airbag. The output terminal of the air pump control device is used to output a corresponding air pump component control signal according to the pressure value monitored by the overpressure protection module, so as to control the air pump component to inflate the airbag.

Images