CN219041459U - Power supply switching device and functional electric stimulation instrument - Google Patents
Power supply switching device and functional electric stimulation instrument Download PDFInfo
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- CN219041459U CN219041459U CN202222798218.9U CN202222798218U CN219041459U CN 219041459 U CN219041459 U CN 219041459U CN 202222798218 U CN202222798218 U CN 202222798218U CN 219041459 U CN219041459 U CN 219041459U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
Abstract
The utility model discloses a power supply switching device and a functional electric stimulator, which relate to the field of equipment power supply and comprise a control module, a communication module, a power supply management module and a battery module, wherein two power supply input ends of the power supply management module are respectively connected with mains supply and a power supply output end of the battery module, the power supply output end is connected with the power supply input end of the functional electric stimulator, the communication module is used for sending a user instruction to the control module, the control module controls the power supply management module according to the user instruction, and the power supply management module supplies power to the functional electric stimulator through the battery module when the user instruction is an myoelectricity acquisition instruction and supplies power to the functional electric stimulator through mains supply when the user instruction is not the myoelectricity acquisition instruction. The utility power supply is replaced by the battery power supply when the myoelectricity is collected, interference caused by the utility power can be avoided, the battery negative electrode is used as the ground, the influence of common mode interference can be avoided, and the accuracy of collecting the myoelectricity is improved.
Description
Technical Field
The utility model relates to the field of equipment power supply, in particular to a power supply switching device and a functional electric stimulator.
Background
The functional electric stimulator comprises an industrial personal computer and a functional main control board, a user issues various user instructions by controlling the industrial personal computer, the functional main control board executes corresponding operations according to the user instructions, the functional electric stimulator is equipment for treating a patient through electric stimulation, and before the electric stimulation is carried out on the patient, the functional electric stimulator needs to collect the myoelectric signal of the patient to evaluate the physical quality of the patient, and pulse current with certain intensity is applied to carry out electric stimulation on limbs or organs of the patient according to the physical quality of the patient. In order to ensure the personal safety and the treatment effect of the patient, the electromyographic signals need to be acquired with higher accuracy. In order to improve the accuracy of collecting the electromyographic signals, the prior art considers the condition that the input voltage of the functional electrical stimulation apparatus has voltage fluctuation, so that a voltage stabilizing module is arranged at the power supply input end of the functional electrical stimulation apparatus to stabilize the input voltage, please refer to fig. 1, fig. 1 is a schematic diagram of a power supply switching device in the prior art, however, the process of collecting the electromyographic signals is also affected by the interference of the mains supply, the ground common mode interference and other conditions, so that the accuracy of collecting the electromyographic signals is not high.
Disclosure of Invention
The utility model aims to provide a power supply switching device and a functional electric stimulator, which can avoid interference caused by mains supply, can avoid the influence of ground common mode interference through the grounding of a battery cathode, and improve the accuracy of collecting electromyographic signals.
In order to solve the above technical problems, the present utility model provides a power supply switching device, including:
the device comprises a control module, a communication module, a power supply management module and a battery module;
one end of the communication module is connected with the communication end of the control module, and the communication module is used for sending a user instruction to the control module;
the control end of the control module is connected with the control end of the power supply management module, and the control module is used for controlling the power supply management module according to the user instruction;
the first power supply input end of the power supply management module is connected with the mains supply, the second power supply input end of the power supply management module is connected with the power supply output end of the battery module, the power supply output end of the power supply management module is connected with the power supply input end of the functional electric stimulator, and the power supply management module is based on the control module and used for communicating the second power supply input end with the power supply output end when the user instruction is an myoelectricity acquisition instruction and communicating the first power supply input end with the power supply output end when the user instruction is not the myoelectricity acquisition instruction.
Preferably, the power supply management module is a relay;
the coil of the relay is connected with the control end of the control module, the fixed end of the contact of the relay is connected with the power supply input end of the functional electric stimulator, the first movable end of the contact of the relay is connected with the mains supply, and the second movable end of the contact of the relay is connected with the power supply output end of the battery module; the coil of the relay is connected with the first moving end and the fixed end of the contact of the relay when not electrified, and the coil of the relay is connected with the second moving end and the fixed end of the contact of the relay when electrified.
Preferably, the method further comprises:
the first voltage stabilizing module is arranged between the power supply management module and the commercial power and is used for stabilizing the input voltage of the commercial power.
Preferably, the method further comprises:
and the serial port isolation module is arranged between the communication module and the control module and is used for isolating serial port interference in the user instruction.
Preferably, the battery module is formed by connecting N lithium batteries in series, and N is a positive integer.
Preferably, the display module is further included;
the display module is connected with the battery module and is used for displaying the current residual electric quantity of the battery module.
Preferably, the method further comprises:
the isolation module is arranged between the control module and the functional electric stimulator and is used for sending the user instruction received by the control module to the functional electric stimulator.
Preferably, the method further comprises:
the second voltage stabilizing module is arranged between the power supply management module and the functional electric stimulator and used for stabilizing the power supply voltage of the power supply management module to the functional electric stimulator.
Preferably, the device further comprises a charging module;
the power supply end of the charging module is connected with the mains supply, the power supply output end of the charging module is connected with the charging end of the battery module, the voltage detection end of the charging module is connected with the power supply output end of the battery module, and the charging module is used for charging the battery module when detecting that the voltage of the battery module is lower than the preset voltage.
The application also provides a functional electric stimulator, which comprises an industrial control board, a functional main control board and the power supply switching device;
the power supply switching device is respectively connected with the industrial control board, the functional main control board and the commercial power;
the industrial control board is respectively connected with the functional main control board and the commercial power.
The utility model provides a power supply switching device and a functional electric stimulator, which relate to the field of equipment power supply and comprise a control module, a communication module, a power supply management module and a battery module, wherein one end of the communication module is connected with the communication end of the control module, the communication module is used for sending a user instruction to the control module, the control end of the control module is connected with the control end of the power supply management module, the first power supply input end of the power supply management module is connected with mains supply, the second power supply input end of the power supply management module is connected with the power supply output end of the battery module, the power supply output end of the power supply management module is connected with the power supply input end of the functional electric stimulator, the control module controls the power supply management module according to the user instruction, the power supply management module supplies power to the functional electric stimulator through the battery module when the user instruction is a myoelectricity acquisition instruction, and supplies power to the functional electric stimulator through mains supply when the user instruction is not the myoelectricity acquisition instruction. The utility power supply is replaced by the battery power supply during myoelectricity collection, interference caused by the utility power can be avoided, the influence of ground common mode interference can be avoided through the grounding of the battery cathode, and the accuracy of myoelectricity collection is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required in the prior art and the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a power switching device in the prior art;
fig. 2 is a schematic structural diagram of a power supply switching device provided in the present application;
fig. 3 is a schematic structural diagram of another power supply switching device provided in the present application;
fig. 4 is a schematic structural diagram of a functional electrical stimulator provided in the present application.
Detailed Description
The utility model provides a power supply switching device and a functional electric stimulator, which can avoid interference caused by mains supply, can avoid the influence of ground common mode interference through the grounding of a battery cathode, and improve the accuracy of collecting electromyographic signals.
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 2, fig. 2 is a schematic structural diagram of a power supply switching device provided in the present application, including:
a control module 11, a communication module, a power supply management module 12, and a battery module 13;
one end of the communication module is connected with the communication end of the control module 11, and the communication module 14 is used for sending a user instruction to the control module 11;
the control end of the control module 11 is connected with the control end of the power supply management module 12, and the control module 11 is used for controlling the power supply management module 12 according to a user instruction;
the first power supply input end of the power supply management module 12 is connected with the mains supply, the second power supply input end of the power supply management module 12 is connected with the power supply output end of the battery module 13, the power supply output end of the power supply management module 12 is connected with the power supply input end of the functional electric stimulator, and the power supply management module 12 is used for being communicated with the power supply output end based on the control module 11 when a user instruction is a myoelectricity acquisition instruction and is communicated with the power supply output end when the user instruction is not the myoelectricity acquisition instruction.
The functional electric stimulator needs to output current to the human body to realize the purpose of electric stimulation to limbs or organs of a patient, the current output by the functional electric stimulator needs to be ensured to be safe and effective current for the treatment effect, physical feeling and personal safety of the patient, and the actual current value needs to be determined according to the physical condition of the patient for ensuring the safety and the effectiveness of the current, so the current functional electric stimulator determines the physical condition of the patient by collecting the electromyographic signals of the patient, and the more accurate the collected electromyographic signals are, the more effective the electric stimulation effect is finally carried out. However, the current functional electro-stimulation devices are powered by the mains supply, and the accuracy of the collected electromyographic signals can be reduced due to the interference of the mains supply; moreover, the reasons such as poor grounding or no access to the ground wire in the actual use scene of the functional electric stimulator can cause that the common mode signal introduced by the human body cannot be neutralized with the ground, thereby causing the phenomena of high baseline drift and common mode interference.
In order to solve the above technical problem, in the present application, the power supply management module 12 is used to control which power supplies supply power to the functional electro-stimulator. Specifically, the power supply management module 12 has two power supply inputs and one power supply output, and the power supply output end of the power supply management module 12 is connected with the power supply input end of the functional electric stimulator to provide electric energy for the functional electric stimulator; the two power supply input ends of the power supply management module 12 are respectively connected with a battery and the mains supply, the control module 11 controls the power supply management module 12 to select which power supply input is communicated with the power supply output, that is, the control module 11 selects whether to supply power to the functional electric stimulator by the mains supply or the battery through controlling the power supply management module 12, and the power supply management module 12 is equivalent to acting as a single-pole double-throw switch.
The battery module 13 is used for stable power supply output, the battery power supply is free from interference of the mains supply, the output voltage of the battery module is not influenced by other electric appliances in the surrounding environment, and the battery module can continuously output voltage more stable than the mains supply; in addition, the negative electrode of the battery module 13 can be used as a grounding wire, common mode noise introduced by a human body can be neutralized, common mode interference is avoided, and the problem that a functional electric stimulator cannot be grounded or is unreliable is solved.
The communication module 14 is configured to receive a user command, specifically, when a user sends the user command to the functional electrical stimulator, the user command is sent to the communication module 14 at the same time, and then the communication module 14 sends the user command to the control module 11, so that the control module 11 recognizes the user command. When the control module 11 determines that the user instruction is an myoelectricity acquisition instruction, the second power supply input end of the power supply management module 12 is controlled to be communicated with the power supply output end, so that the power is supplied to the functional electric stimulation instrument through the battery module 13 at the moment; and when other instructions are not myoelectricity acquisition instructions, because other instructions are generally affected by factors such as mains supply interference and common mode interference, the influence is small or even no influence is caused, in order to save the electric quantity of the battery module 13, after the control module 11 determines that the user instructions are not the point acquisition instructions, the first power supply input end of the power supply management module 12 is controlled to be communicated with the power supply output end, so that the power is supplied to the functional electric stimulation instrument through the mains supply at the moment, and the electric quantity of the battery module 13 is solved on the premise of ensuring the normal operation of the functional electric stimulation instrument.
In addition, the control module 11 may be an STM32F407VET6 chip, or may be another chip capable of implementing the functions of the control module 11, which is not limited in this application.
In summary, through setting up including control module 11, communication module, power supply management module 12 and battery module 13, communication module's one end is connected with the communication end of control module 11, communication module 14 is used for sending user's instruction to control module 11, control module's 11 control end is connected with power supply management module's 12 control end, power supply management module's 12 first power supply input is connected with the commercial power, power supply management module's 12 second power supply input is connected with battery module's 13 power supply output, power supply management module's 12 power supply output is connected with the power supply input of functional electric stimulator, control module 11 controls power supply management module 12 according to the user's instruction, power supply management module 12 is supplied with the power to functional electric stimulator through battery module 13 when the user's instruction is the myoelectricity collection instruction, and supply power to the functional electric stimulator through the commercial power when the user's instruction is not the myoelectricity collection instruction. The utility power supply is replaced by the battery power supply during myoelectricity collection, interference caused by the utility power can be avoided, the influence of ground common mode interference can be avoided through the grounding of the battery cathode, and the accuracy of myoelectricity collection is improved.
Based on the above embodiments:
as a preferred embodiment, the power management module 12 is a relay;
the coil of the relay is connected with the control end of the control module 11, the stationary end of the contact of the relay is connected with the power supply input end of the functional electric stimulator, the first movable end of the contact of the relay is connected with the mains supply, and the second movable end of the contact of the relay is connected with the power supply output end of the battery module 13; the coil of the relay is connected with the first moving end and the fixed end of the contact of the relay when not energized, and the second moving end and the fixed end of the contact of the relay when energized.
In order to simply realize the power supply management module 12, in the present application, a relay is used as the power supply management module 12, the motionless end of the relay contact is used as the power supply output end of the power supply management module 12 to communicate with the functional electric stimulator, the two motionless ends of the relay contact are respectively used as the two power supply input ends of the power supply management module 12, and the relay coil is connected with the control module 11, so that the control module 11 controls which motionless end and which motionless end of the relay are connected by outputting current to the relay coil, thereby realizing the purpose of controlling the power supply input of the functional electric stimulator. The relay has high sensitivity and low control power, can perform switching operation more accurately and simply, and has high switching speed and high reliability, so that the relay can be used as the power supply management module 12 better.
As a preferred embodiment, further comprising:
the first voltage stabilizing module is arranged between the power supply management module 12 and the mains supply and is used for stabilizing the input voltage of the mains supply.
In order to ensure the electricity safety, in the application, as the functional electric stimulator needs to use the commercial power, the phenomena of unstable voltage, electromagnetic interference and the like can be caused suddenly when the electric stimulator is normally electrified for use, and larger peak voltage can be generated, the unstable or interfered voltage can influence the normal work of the device, the task interruption of the functional electric stimulator can be caused, the service life of the functional electric stimulator can be reduced, and the like, and in addition, the functional electric stimulator can not accurately acquire a user instruction under the condition of unstable or interfered voltage, so that the situation of incapacity of normally executing the corresponding task can be caused; in addition, if the control module 11 and the communication module 14 are also powered by the mains supply, these modules are also affected by factors such as instability or interference of the mains supply. Therefore, a first voltage stabilizing module is required to be arranged between the power supply management module 12 and the mains supply to stabilize the voltage value of the mains supply, so that the voltage can fluctuate within a range with smaller variation range, serious voltage instability, interference and other conditions are avoided, and normal operation of the functional electric stimulator, the control module 11 and other devices is ensured. In addition, the first voltage stabilizing module may be a power adapter, or may be a rectifier including a capacitor or a voltage stabilizing resistor, which is not limited in the application.
As a preferred embodiment, further comprising:
the serial isolation module 15 is arranged between the communication module and the control module 11 and is used for isolating serial interference in the user instruction.
In order to ensure that the correct user command is obtained, in this application, considering that when the communication module communicates with the control module 11 and when the communication module 14 receives the user command, the communication module generally communicates through a serial port, and the serial port communication is easily affected by multiple kinds of interference such as environmental electromagnetic interference, electrostatic interference, noise interference and the like, when the interference of the serial port communication is too large, the transmitted user command may be wrong, so that the control module 11 obtains the wrong user command, and the communication between the communication module and the control module 11 may be disconnected. Therefore, the serial port isolation module 15 needs to be provided, for example, the optoelectronic isolation module 15 may be used, or the isolation module 15 with an additional shielding wire may be used, or the serial port isolation module 15 may be built in a communication module, for example, a communication module with a serial port isolation function or a communication module with a shielding wire may be used, so that the wiring space and the cost are saved, and the serial port isolation module 15 specifically used in the application is not limited. Based on this, through setting up serial port isolation module 15, can avoid the interference effectively, guarantee to acquire the exact user instruction.
As a preferred embodiment, the battery module 13 is composed of N lithium batteries connected in series, N being a positive integer.
The application adopts the lithium battery as battery module 13, considers the long service life of lithium battery, and the energy density is high moreover can store more electric energy to and can all can normal use in various temperature environment, charging efficiency is also higher, can be safe, effective and long-time as the power supply of functional electric stimulator and use. For the specific adopted lithium battery specification, the lithium battery with the output voltage of 16.8 V+/-10% and the electric energy capacity of 6700mAh can be used, and 4 lithium batteries are connected in series to form the battery module 13 for use, in the battery module 13, not only can the output voltage meet the power supply voltage required by the functional electric stimulator, but also the power supply time can meet the requirement of the functional electric stimulator, but also the economic cost is increased because the lithium battery is not excessively arranged, and the specific used lithium battery specification and number can be adjusted according to the actual use condition.
As a preferred embodiment, the display device further comprises a display module;
the display module is connected with the battery module 13, and the display module is used for displaying the current residual electric quantity of the battery module 13.
In order to intuitively determine the remaining power of the battery module 13, in this application, a display module is further provided and connected with the battery module 13, where the display module may be a display module with a power detection function, and the current remaining power is determined by detecting the output voltage of the battery module 13; or the display module acquires the residual electric quantity detected by the battery module 13 and displays the residual electric quantity; the control module 11 may acquire the current remaining power of the battery module 13 and send the current remaining power to the display module for display, which is not limited in this application. The display module can be an LED screen or a nixie tube display module, and the specific type of the display module is not limited.
As a preferred embodiment, further comprising:
and the isolation module 15 is arranged between the control module 11 and the functional electric stimulator, and the isolation module 15 is used for sending the user instruction received by the control module 11 to the functional electric stimulator.
In order to ensure that the functional electro-stimulator executes correct instructions, in the present application, when the control module 11 and the functional electro-stimulator are in communication, the control module 11 and the functional electro-stimulator are easily affected by various interferences such as environmental electromagnetic interference, electrostatic interference, noise interference and the like, and when the communication interference is too large, the transmitted user instructions may be wrong, so that the functional electro-stimulator obtains wrong user instructions, and communication disconnection between the control module 11 and the functional electro-stimulator may also be caused. Therefore, an isolation module 15 is required to be provided, referring to fig. 3, fig. 3 is a schematic structural diagram of another power supply switching device provided in the present application, and the optoelectronic isolation module 15 or the isolation module 15 with an external shielding wire may be used, which is not limited to the specific use of the isolation module 15 in the present application. Based on this, through setting up isolation module 15, can avoid effectively that control module 11 sends the user instruction of giving the functional electric stimulator to receive the interference, guarantee that the functional electric stimulator carries out the exact instruction.
As a preferred embodiment, further comprising:
the second voltage stabilizing module is arranged between the power supply management module 12 and the functional electric stimulator and is used for stabilizing the power supply voltage of the power supply management module 12 to the functional electric stimulator.
In order to further ensure the power supply stability, in the present application, it is considered that although the power supply voltage of the battery module 13 is relatively stable, a voltage stabilizing module is also generally present in the commercial power, so that the commercial power can be ensured to provide relatively stable voltage; however, when the current remaining power of the battery module 13 is lower, the intensity and stability of the voltage provided by the battery module 13 are lower, and when the power consumption in the surrounding environment is higher, the interference of the mains supply and the stability of the voltage are also more interfered, and both of them cause unstable power supply voltage of the functional electro-stimulator. Based on this, a second voltage stabilizing module is required to be disposed between the power supply management module 12 and the functional electro-stimulator, and the power supply voltage of the functional electro-stimulator is stabilized by the second voltage stabilizing module, so as to ensure the stable operation of the functional electro-stimulator. In addition, the second voltage stabilizing module may be built in the power supply output end of the power supply management module 12 to save wiring space.
As a preferred embodiment, further comprises a charging module 16;
the power supply end of the charging module 16 is connected with the mains supply, the power supply output end of the charging module 16 is connected with the charging end of the battery module 13, the voltage detection end of the charging module 16 is connected with the power supply output end of the battery module 13, and the charging module 16 is used for charging the battery module 13 when detecting that the voltage of the battery module 13 is lower than the preset voltage.
In order to improve the usability of the charging module 16, in this application, a charging module 16 is further provided, please refer to fig. 3, fig. 3 is a schematic structural diagram of another power supply switching device provided in this application, and the charging module 16 detects the current remaining capacity of the battery module 13 in real time, and charges the battery module 13 when detecting that the current remaining capacity is too low. Specifically, the charging module 16 may determine the current remaining power by detecting the output voltage of the battery module 13, and when the current remaining power of the battery module 13 is too low, power is supplied to the battery module 13 by the utility power; when the time for starting charging is selected, considering that the service life of the battery module 13 is easy to be lost if the battery module 13 is in a state of charging and consuming electricity, if the current residual electric quantity of the battery module 13 is detected to be too low when the functional electric stimulator is in an myoelectricity acquisition task, the charging is not started temporarily, but after the myoelectricity acquisition task of the functional electric stimulator is finished, the control module 11 cuts the charging management module into commercial power to supply power to the functional electric stimulator, and the charging module 16 starts to charge the battery module 13 again; in addition, the charging module 16 may be a BQ25713B chip, and has a charging circuit and a charging current detecting circuit therein, so that the charging module not only has a charging function, but also has a voltage stabilizing output interface, and can stably output the voltage required by the battery module 13.
Further, to address the wiring space and circuit area, the charging module 16 may also be disposed between the utility power and the power management module 12, without requiring an additional wire to connect the charging module 16 and the utility power. That is, when the utility power is used to supply power to the functional electric stimulator, the utility power flows into the functional electric stimulator through the charging module 16 and then through the power supply management module 12; while charging, the charging module 16 may use the utility power to charge the battery module 13.
Based on this, the preset voltage can be set higher, so that the functional electro-stimulation device can completely execute the myoelectricity collection task for several times even if the electric quantity of the battery module 13 is too low, and the situation that the treatment task cannot be unfolded due to insufficient electric quantity of the battery module 13 is avoided.
Referring to fig. 4, fig. 4 is a schematic structural diagram of a functional electrical stimulation apparatus provided in the present application, including an industrial control board 21 and a functional main control board 22, and further including a power supply switching device 23 as described above;
the power supply switching device 23 is respectively connected with the industrial control board 21, the functional main control board 22 and the mains supply;
the industrial control board 21 is respectively connected with the functional main control board 23 and the mains supply.
The functional electric stimulator generally comprises an industrial personal computer 21 and a functional main control board 22, a user sends various user instructions through the industrial personal computer 21, and the functional main control board 22 performs myoelectricity collection or electric stimulation and other operations according to the user instructions, so that the functional main control board 22 in the functional electric stimulator is a unit for realizing functions in the functional electric stimulator, and therefore, the power supply switching device 23 actually supplies power to the functional main control board 22. The functional main control board 22 generally comprises a main controller chip, a communication management module for communicating with the industrial personal computer 21 and the power supply switching device 23, a rotary encoder for adjusting electric stimulation current, a power-on button, an electric stimulation output module, an electrode falling detection circuit, an myoelectricity acquisition module and an electronic switch switching functional circuit for switching the functions realized by the functional main control board 22, wherein the modules are all provided with the power supply switching device 23 for supplying power. The communication serial port of the industrial personal computer 21 is respectively connected with a communication module in the power supply switching device 23 and a communication management module in the functional main control board 22, and is used for sending user instructions to the modules, and the power supply of the functional main control board 22, whether the commercial power or the battery power supply, needs to pass through the power supply switching device 23.
For a detailed description of a functional electrical stimulation apparatus provided in the present application, please refer to the embodiment of the power supply switching device, and the detailed description is omitted herein.
In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other. For the functional electric stimulator disclosed in the embodiment, the description is simpler because the functional electric stimulator corresponds to the power supply switching device disclosed in the embodiment, and relevant parts only need to be described with reference to the power supply switching device.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A power supply switching device, characterized by comprising:
the device comprises a control module, a communication module, a power supply management module and a battery module;
one end of the communication module is connected with the communication end of the control module, and the communication module is used for sending a user instruction to the control module;
the control end of the control module is connected with the control end of the power supply management module, and the control module is used for controlling the power supply management module according to the user instruction;
the first power supply input end of the power supply management module is connected with the mains supply, the second power supply input end of the power supply management module is connected with the power supply output end of the battery module, the power supply output end of the power supply management module is connected with the power supply input end of the functional electric stimulator, and the power supply management module is based on the control module and used for communicating the second power supply input end with the power supply output end when the user instruction is an myoelectricity acquisition instruction and communicating the first power supply input end with the power supply output end when the user instruction is not the myoelectricity acquisition instruction.
2. The power switching device of claim 1, wherein the power management module is a relay;
the coil of the relay is connected with the control end of the control module, the fixed end of the contact of the relay is connected with the power supply input end of the functional electric stimulator, the first movable end of the contact of the relay is connected with the mains supply, and the second movable end of the contact of the relay is connected with the power supply output end of the battery module; the coil of the relay is connected with the first moving end and the fixed end of the contact of the relay when not electrified, and the coil of the relay is connected with the second moving end and the fixed end of the contact of the relay when electrified.
3. The power supply switching device according to claim 1, further comprising:
the first voltage stabilizing module is arranged between the power supply management module and the commercial power and is used for stabilizing the input voltage of the commercial power.
4. The power supply switching device according to claim 1, further comprising:
and the serial port isolation module is arranged between the communication module and the control module and is used for isolating serial port interference in the user instruction.
5. The power switching device according to claim 1, wherein the battery module is composed of N lithium batteries connected in series, N being a positive integer.
6. The power switching device of claim 1, further comprising a display module;
the display module is connected with the battery module and is used for displaying the current residual electric quantity of the battery module.
7. The power supply switching device according to claim 1, further comprising:
the isolation module is arranged between the control module and the functional electric stimulator and is used for sending the user instruction received by the control module to the functional electric stimulator.
8. The power supply switching device according to claim 1, further comprising:
the second voltage stabilizing module is arranged between the power supply management module and the functional electric stimulator and used for stabilizing the power supply voltage of the power supply management module to the functional electric stimulator.
9. The power supply switching device according to any one of claims 1 to 8, further comprising a charging module;
the power supply end of the charging module is connected with the mains supply, the power supply output end of the charging module is connected with the charging end of the battery module, the voltage detection end of the charging module is connected with the power supply output end of the battery module, and the charging module is used for charging the battery module when detecting that the voltage of the battery module is lower than the preset voltage.
10. A functional electrical stimulation apparatus, comprising an industrial control board and a functional main control board, and further comprising the power supply switching device according to any one of claims 1 to 9;
the power supply switching device is respectively connected with the industrial control board, the functional main control board and the commercial power;
the industrial control board is respectively connected with the functional main control board and the commercial power.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222798218.9U CN219041459U (en) | 2022-10-24 | 2022-10-24 | Power supply switching device and functional electric stimulation instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222798218.9U CN219041459U (en) | 2022-10-24 | 2022-10-24 | Power supply switching device and functional electric stimulation instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219041459U true CN219041459U (en) | 2023-05-16 |
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ID=86273718
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222798218.9U Active CN219041459U (en) | 2022-10-24 | 2022-10-24 | Power supply switching device and functional electric stimulation instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219041459U (en) |
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2022
- 2022-10-24 CN CN202222798218.9U patent/CN219041459U/en active Active
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