Portable hydrogen production device and preparation method

Abstract

The embodiment of the invention provides a portable hydrogen production device and a preparation method, and relates to the technical field of gas preparation. In the embodiment of the invention, the portable hydrogen production device comprises a controller, a hydrogen production driving module, a hydrogen production electrode plate and an electrolytic bath. The first driving circuit of the hydrogen production driving module generates the positive electrode driving signal of the hydrogen production electrode plate matched with the hydrogen generation rate required by a user, and the second driving circuit of the hydrogen production driving module generates the negative electrode driving signal of the hydrogen production electrode plate, so that the hydrogen generation rate of the portable hydrogen production device is flexibly controlled; therefore, the problems that at present, the flexibility of control over the hydrogen generation rate is low, and different hydrogen generation requirements are difficult to meet are solved, and the operability of hydrogen equipment is improved.

Description

Technical Field

[0001] The present application relates to the technical field of gas preparation, and in particular to a portable hydrogen production device and a production method. Background Art

[0002] Since absorbing hydrogen of appropriate concentration (for example, gas with a hydrogen content of 1% to 3%) has the benefits of improving antioxidant capacity, enhancing resistance, protecting organs, calming, helping sleep, relieving stress, and eliminating fatigue, hydrogen medicine and hydrogen health care are increasingly sought after by users, which also makes hydrogen preparation devices a commonly used equipment in daily life.

[0003] At present, users can control the existing hydrogen production device to produce hydrogen by setting the hydrogen production rate. It can be seen that the existing hydrogen production device has low flexibility in controlling the hydrogen production rate and is difficult to meet different hydrogen production needs. Therefore, how to flexibly control the hydrogen production rate of the hydrogen production device is a problem that needs to be solved urgently. Summary of the invention

[0004] The embodiments of the present application provide a portable hydrogen production device and a preparation method for flexibly controlling the hydrogen generation rate of the portable hydrogen production device, improving the operability of the portable hydrogen production device, and thus meeting different hydrogen generation needs.

[0005] In a first aspect, an embodiment of the present application provides a portable hydrogen production device, the device comprising: a controller, a hydrogen production drive module, a hydrogen production electrode sheet and an electrolyzer; wherein:

[0006] The hydrogen production drive module is electrically connected to the controller and the hydrogen production electrode sheet respectively; wherein the first control signal of the controller is used to enable the hydrogen production drive module, the first drive circuit in the hydrogen production drive module is used to generate the positive electrode drive signal of the hydrogen production electrode sheet according to the hydrogen production rate required by the user, and the second drive circuit in the hydrogen production drive module is used to generate the negative electrode drive signal of the hydrogen production electrode sheet;

[0007] The hydrogen production electrode sheet is placed in the electrolytic cell containing the hydrogen production solution; wherein the hydrogen production electrode sheet is used to produce hydrogen according to the positive electrode driving signal, the negative electrode driving signal and the hydrogen production solution.

[0008] In an optional embodiment, the first driving circuit includes an adjustable resistor and a signal generating module, the adjustable end of the adjustable resistor is electrically connected to the output end and the feedback end of the signal generating module respectively, the adjustable resistor is used to adjust the size of the feedback signal of the feedback end, and the signal generating module is used to adjust the size of the positive driving signal output by the output end according to the feedback signal.

[0009] In an optional embodiment, the hydrogen production drive module is also used to sample the current in the second drive circuit to obtain a first current sampling result, and send the first current sampling result to the controller; wherein the first current sampling result is used to characterize the hydrogen generation rate of the hydrogen production drive module.

[0010] In an optional embodiment, the device also includes an atomization module, and the device also includes an atomization module, and the atomization module is used to atomize the target solution when the hydrogen production electrode sheet prepares hydrogen according to the positive electrode drive signal and the negative electrode drive signal to obtain a corresponding target spray.

[0011] In an optional embodiment, the atomization module includes an atomization sheet and a field effect tube, the positive electrode of the atomization sheet is electrically connected to the drain of the field effect tube, the negative electrode of the atomization sheet is electrically connected to the source of the field effect tube, and the gate of the field effect tube is used to access an enable signal that drives the atomization sheet to atomize the target solution, and the enable signal is used to control the field effect tube to be turned on or off according to a set frequency.

[0012] In an optional implementation, the atomization module further includes a first inductor, a first capacitor and a first resistor; wherein the first input end of the first inductor is electrically connected to the drain of the field effect tube, the second input end of the first inductor is used to access the power-on signal of the controller for the atomization module, the output end of the first inductor is electrically connected to the positive electrode of the atomization sheet through the first capacitor, and the first resistor is located on a first branch connected in parallel with the current between the negative electrode of the atomization sheet and the source of the field effect tube;

[0013] The atomization module is also used to perform current sampling on the current in the first branch to obtain a second current sampling result, and send the second current sampling result to the controller; wherein the second current sampling result is used to characterize the rate at which the atomization module produces the target spray.

[0014] In an optional embodiment, the device also includes a first detection module, which is used to detect whether the electrolytic cell is abnormally tilted, and when it is detected that the first tilt angle of the electrolytic cell is greater than a preset tilt angle threshold, the first detection result is sent to the controller, so that the controller generates an alarm message based on the first detection result, and the alarm message is used to remind the user to adjust the electrolytic cell from the first tilt angle to a second tilt angle, and the second tilt angle is less than or equal to the tilt angle threshold.

[0015] In an optional embodiment, the device further includes an alarm module, wherein the alarm module is used to receive a second control signal from the controller, and the second control signal is used to instruct the alarm module to broadcast the alarm information in a preset information alarm manner.

[0016] In an optional embodiment, the device also includes a second detection module, which is used to determine the remaining solution amount of the hydrogen production solution in the electrolyzer in combination with the voltage measurement result of the second branch composed of the second resistor and the third resistor on the first drive circuit, and when it is detected that the remaining solution amount is less than a preset solution amount threshold, the second detection result is sent to the controller, so that the controller generates a third control signal according to the second detection result, and the third control signal is used to shut down the hydrogen production drive module.

[0017] In a second aspect, an embodiment of the present application further provides a method for preparing hydrogen, which is applied to the portable hydrogen production device as described in the first aspect, and the method comprises:

[0018] Obtaining the hydrogen generation rate required by the user from the hydrogen preparation request;

[0019] According to the hydrogen generation rate, the positive electrode driving signal of the hydrogen production electrode plate generated by the first driving circuit is adjusted to obtain an adjusted positive electrode driving signal;

[0020] Based on the adjusted positive electrode driving signal and the negative electrode driving signal of the hydrogen production electrode plate generated by the second driving circuit, the hydrogen production electrode plate is controlled to produce hydrogen in the electrolytic cell containing the hydrogen production solution.

[0021] In an optional embodiment, the step of adjusting the positive electrode driving signal of the hydrogen production electrode plate generated by the first driving circuit according to the hydrogen generation rate includes:

[0022] determining, according to the hydrogen generation rate, a target resistance value of an adjustable resistor in the first drive circuit connected to the first drive circuit;

[0023] After adjusting the resistance value of the adjustable resistor connected to the first drive circuit based on the target resistance value, the positive drive signal is generated by the adjusted first drive circuit.

[0024] The beneficial effects of this application are as follows:

[0025] In the portable hydrogen production device provided in the embodiment of the present application, a positive driving signal of the hydrogen production electrode sheet that matches the hydrogen production rate required by the user is generated through the first driving circuit of the hydrogen production driving module, and a negative driving signal of the hydrogen production electrode sheet is generated through the second driving circuit of the hydrogen production driving module, thereby realizing flexible control of the hydrogen generation rate of the portable hydrogen production device, thereby solving the current problem of low flexibility in controlling the hydrogen generation rate and difficulty in meeting different hydrogen generation needs, and improving the operability of the hydrogen equipment device.

[0026] In addition, other features and advantages of the present application will be described in the subsequent description, and partly become apparent from the description, or be understood by practicing the present application. The purpose and other advantages of the present application can be realized and obtained by the structures particularly pointed out in the written description, claims, and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described here are used to provide a further understanding of the present application, constitute a part of the present application, and do not constitute an improper limitation on the present application. In the drawings:

[0028] Figure 1 A schematic diagram of the structure of a portable hydrogen production device provided in an embodiment of the present application;

[0029] Figure 2 A schematic diagram of the structure of a first driving circuit provided in an embodiment of the present application;

[0030] Figure 3 A schematic diagram of the circuit structure of a hydrogen production drive module provided in an embodiment of the present application;

[0031] Figure 4 A schematic diagram of the structure of another portable hydrogen production device provided in an embodiment of the present application;

[0032] Figure 5 A schematic diagram of the circuit structure of an atomization module provided in an embodiment of the present application;

[0033] Figure 6 A schematic diagram of the circuit structure of a first detection module provided in an embodiment of the present application;

[0034] Figure 7 A schematic diagram of an implementation process of a hydrogen production method provided in an embodiment of the present application. DETAILED DESCRIPTION

[0035] The embodiments of the present application will be described in more detail below with reference to the accompanying drawings. Although certain embodiments of the present application are shown in the accompanying drawings, it should be understood that the present application can be implemented in various forms and should not be construed as being limited to the embodiments described herein. Instead, these embodiments are provided to provide a more thorough and complete understanding of the present application. It should be understood that the drawings and embodiments of the present application are only for exemplary purposes and are not intended to limit the scope of protection of the present application.

[0036] It should be understood that the various steps described in the method implementation of the present application can be performed in different orders and / or performed in parallel. In addition, the method implementation may include additional steps and / or omit the steps shown. The scope of the present application is not limited in this respect.

[0037] The term "including" and its variations used in this document are open inclusions, that is, "including but not limited to". The term "based on" means "based at least in part on". The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one other embodiment"; the term "some embodiments" means "at least some embodiments". Relevant definitions of other terms will be given in the description below. It should be noted that the concepts of "first", "second", etc. mentioned in this application are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence of the functions performed by these devices, modules or units.

[0038] It should be noted that the modifications of "one" and "plurality" mentioned in the present application are illustrative rather than restrictive, and those skilled in the art should understand that unless otherwise clearly indicated in the context, it should be understood as "one or more".

[0039] The names of the messages or information exchanged between multiple devices in the embodiments of the present application are only used for illustrative purposes and are not used to limit the scope of these messages or information.

[0040] First, the design concept of the embodiment of the present application is briefly introduced below:

[0041] Inhaling an appropriate amount of hydrogen (H2) usually has many benefits for the human body. For example, hydrogen can have an antioxidant effect on the human body. Because hydrogen itself has the characteristics of selective antioxidant, it also has the function of scavenging free radicals, and has a therapeutic effect on cell apoptosis and abnormal vascular proliferation. Hydrogen can also protect the central nervous system and has a significant protective effect on central nervous system disorders represented by Alzheimer's disease. Hydrogen can also improve cerebrovascular diseases. For example, breathing hydrogen has a good therapeutic effect on ischemic hypoxic brain damage caused by neonatal asphyxia. Hydrogen can also effectively improve some liver diseases, not only against fatty liver, but also significantly reduce the proportion of fatty liver turning into liver cancer in the late stage.

[0042] However, due to factors such as hydrogen production efficiency, energy consumption, safety, and portability, hydrogen production devices are less popular than other common equipment in daily life (such as air purifiers, etc.) and have not yet been widely used in commercial applications. Currently, users can control the production of hydrogen by setting the hydrogen production rate of existing hydrogen production devices.

[0043] It can be seen that the existing hydrogen production device has low flexibility in controlling the hydrogen generation rate, that is, the operability of the hydrogen production device is low, and it is difficult to meet the hydrogen generation needs of different users or different hydrogen generation needs of the same user. Therefore, how to flexibly control the hydrogen generation rate of the hydrogen production device is a problem that needs to be solved urgently.

[0044] In view of this, in order to flexibly control the hydrogen generation rate of the hydrogen production device and improve the operability of the hydrogen production device, so as to meet different hydrogen generation needs. Figure 1 As shown, it is a structural schematic diagram of a portable hydrogen production device provided in an embodiment of the present application. The portable hydrogen production device may include: a controller 11, a hydrogen production drive module 12, a hydrogen production electrode sheet 13 and an electrolyzer 14; wherein,

[0045] The hydrogen production drive module 12 is electrically connected to the controller 11 and the hydrogen production electrode sheet 13 respectively. The first control signal of the controller 11 can be used to enable the hydrogen production drive module 12. The first drive circuit in the hydrogen production drive module 12 can be used to generate a positive electrode drive signal of the hydrogen production electrode sheet 13 according to the hydrogen production rate required by the user. The second drive circuit in the hydrogen production drive module 12 can be used to generate a negative electrode drive signal of the hydrogen production electrode sheet 13.

[0046] The hydrogen production electrode sheet 13 is placed in an electrolytic cell 14 containing a hydrogen production solution; wherein the hydrogen production electrode sheet 13 can be used to produce hydrogen according to a positive electrode driving signal, a negative electrode driving signal and the hydrogen production solution.

[0047] The controller 11 is the control center of the portable hydrogen production device. It can control other modules (such as the hydrogen production drive module 12) in the portable hydrogen production device according to the user's instructions or operations, and can also receive and process information reported by each module. For example, after determining the hydrogen production rate required by the user, the controller 11 can instruct the first drive circuit in the hydrogen production drive module 12 to generate a positive electrode drive signal for the hydrogen production electrode sheet 13 according to the hydrogen production rate required by the user, and instruct the second drive circuit in the hydrogen production drive module 12 to generate a negative electrode drive signal for the hydrogen production electrode sheet 13.

[0048] Optionally, the hydrogen production electrode sheet 13 may be composed of a first electrode sheet (or referred to as the first hydrogen production electrode sheet) and a second electrode sheet (or referred to as the second hydrogen production electrode sheet). The first electrode sheet may be used as a positive electrode sheet for hydrogen production (i.e., a positive electrode sheet for hydrogen production), and the second electrode sheet may be used as a negative electrode sheet for hydrogen production (i.e., a negative electrode sheet for hydrogen production).

[0049] Moreover, it should be understood that the names and types of the various modules, devices or components in the above-mentioned portable hydrogen production device are all examples, and the embodiments of the present application do not specifically limit this. Exemplarily, the controller 11 can also be called a main control or control center, and can specifically be a micro control unit (MCU) or the like.

[0050] Based on the above embodiment, the hydrogen production drive module 12 can generate a positive electrode drive signal that matches the hydrogen production rate required by the user through the first drive circuit, thereby controlling the hydrogen production electrode sheet 13 to produce hydrogen in the electrolytic cell 14 containing the hydrogen production solution according to the positive electrode drive signal and the negative electrode drive signal generated by the second drive circuit. In other words, the hydrogen production drive module 12 can flexibly adjust the voltage difference between the positive and negative electrodes of the hydrogen production electrode sheet 13 according to the hydrogen production rate required by the user, thereby achieving the purpose of controlling the hydrogen production rate of the portable hydrogen production device.

[0051] In order to control the generation of the positive drive signal according to the hydrogen generation rate required by the user, refer to Figure 2 As shown, the first driving circuit may include an adjustable resistor 121 and a signal generating module 122 , and the adjustable end of the adjustable resistor 121 is electrically connected to the output end and the feedback end of the signal generating module 122 , respectively.

[0052] Among them, the adjustable resistor 121 can be used to adjust the size of the feedback signal at the feedback end, and the signal generation module 122 can be used to adjust the size of the positive drive signal output by the output end according to the feedback signal. Optionally, the aforementioned feedback signal can be used to indicate the voltage size of the feedback end, and the aforementioned positive drive signal can be used to indicate the voltage size of the output end.

[0053] In this way, by adjusting the resistance of the adjustable resistor 121 connected to the first drive circuit, the feedback signal (such as voltage) at the feedback end can be changed, so that the positive drive signal generated by the first drive circuit can be determined according to the feedback signal. Whether the positive drive signal corresponding to the hydrogen generation rate required by the user is the same or similar. Once it is determined that the positive drive signal generated by the first drive circuit meets the user's demand for the hydrogen generation rate, the resistance adjustment of the variable resistor 121 can be stopped, and the size of the positive drive signal output from the output end can be stopped according to the feedback signal. In other words, the user can adjust the size of the positive drive signal by adjusting the resistance value of the variable resistor 121, thereby adjusting the hydrogen production rate.

[0054] It should also be noted that the embodiment of the present application does not specifically limit the method of placing the hydrogen production electrode sheet 13 in the electrolyzer 14 to electrolyze the hydrogen production solution. For example, it can be any of the four hydrogen production methods of alkaline (ALK) water electrolysis hydrogen production, proton exchange membrane (PEM) water electrolysis hydrogen production, solid oxide electrolysis cell (SOEC) or anion exchange membrane (AEM).

[0055] In an optional implementation, the hydrogen production drive module 12 can also be used to sample the current in the second drive circuit, obtain a first current sampling result, and send the first current sampling result to the controller 11. The first current sampling result can be used to characterize the hydrogen generation rate of the hydrogen production drive module 12.

[0056] Exemplarily, the first current sampling result may be the current magnitude when the second drive circuit generates the cathode drive signal, that is, the magnitude of the hydrogen production current.

[0057] In this way, the user or the controller 11 can quickly and accurately determine whether the actual hydrogen generation rate of the portable hydrogen production device meets the user's hydrogen generation demand based on the obtained first current sampling result. Once it is determined that the actual hydrogen generation rate of the portable hydrogen production device does not meet the user's hydrogen generation demand, the user can be prompted to adjust the first drive circuit, thereby changing the positive drive signal to ensure that the actual hydrogen generation rate of the portable hydrogen production device meets the user's hydrogen generation demand.

[0058] See also Figure 3As shown, it is a schematic diagram of the circuit structure of a hydrogen production drive module provided in an embodiment of the present application. Assume that the signal generating module 122 is a direct current-direct current (DC-DC) power conversion chip U1 as an example. The VIN pin and VINA pin of U1 are power input terminals, and the VOUT pin (i.e., output terminal) and FB pin (i.e., feedback terminal) of U1 are electrically connected to the adjustable end (i.e., end 2) of the adjustable resistor R1 (for example, the maximum adjustable resistance value of R1 can be 100KΩ). One end of R1 (i.e., end 1) can be connected to the PGND pin (i.e., power ground terminal) of U1, and the other end of R1 (i.e., end 3) can be in a suspended state. There can also be a connection between the VOUT pin and the FB pin of U1 as shown in the figure. Figure 3 The parallel circuit composed of the resistor R2, the resistor R3 and the capacitor C1 shown in the figure may, of course, also have other electronic components or branches, which is not limited in the embodiment of the present application.

[0059] In addition, the first drive circuit and the second drive circuit are connected to the hydrogen production electrode sheet 13 through the interface CON1 (eg, a 2-pin terminal block) of the hydrogen production electrode sheet 13. Figure 3 As shown, the first drive circuit is connected to pin 1 of CON1, and the second drive circuit is connected to pin 2 of CON1. ​​Pin 1 is used to receive the positive drive signal generated by the first drive circuit (which can be expressed as H2 + ), pin 2 is used to connect the negative drive signal generated by the second drive circuit (which can be expressed as H2 - ).

[0060] Still Figure 3 As shown, the second drive circuit can be specifically a parallel circuit composed of a resistor R4, a resistor R5 and a capacitor C2. The hydrogen production drive module 12 can perform current sampling on the current in the second drive circuit through the hydrogen production current sampling detection signal (which can be expressed as H2_ADC) in the circuit between R5 and C2 to obtain a first current sampling result.

[0061] It should be understood that the hydrogen production drive module 12 may also include other electronic components or branches, which is not limited in the present application. For example, the EN pin (i.e., the enable end) of U1 can be used to access the enable signal (which can be expressed as H2_P_EN) from the controller 11. After U1 receives the enable signal, it can output the positive drive signal according to the output end. For example, when the enable signal (i.e., H2_P_EN) is at a high level, a signal is output at the VOUT pin (i.e., the output end) of U1.

[0062] In an alternative implementation, see Figure 4As shown, the portable hydrogen production device may also include an atomization module 15, which may be used to atomize the target solution when the hydrogen production electrode sheet 13 prepares hydrogen according to the positive electrode drive signal and the negative electrode drive signal to obtain a corresponding target spray. In this way, after the user senses that the atomization module 15 starts to produce the target spray, he can determine that the hydrogen production electrode sheet 13 has started to prepare hydrogen according to the positive electrode drive signal and the negative electrode drive signal. That is, the aforementioned target spray can be used to prompt the user that the hydrogen production electrode sheet 13 has started to prepare hydrogen according to the positive electrode drive signal and the negative electrode drive signal. In addition, the aforementioned target solution can be any solution that can prompt the user that the portable hydrogen production device has started to prepare hydrogen, and the embodiments of the present application do not specifically limit this.

[0063] For example, the target solution may be a liquid containing nourishing essential oils. The atomizing module 15 atomizes the liquid containing special nourishing essential oils and emits mist while producing hydrogen, which can not only remind the user that hydrogen production has started, but also allow the user to inhale hydrogen and the atomized liquid containing special nourishing essential oils at the same time, which can achieve multiple effects such as nourishing the lungs and anti-oxidation.

[0064] Based on the above method, the problem that hydrogen is a colorless and odorless gas and is not easily detected by the user when hydrogen is produced is avoided. By adding a feedback mechanism (i.e., atomization module 15) to serve as a reminder, the user can be accurately and timely reminded of the hydrogen production status of the portable hydrogen production device, i.e., whether hydrogen production has started.

[0065] In an optional implementation, the atomization module 15 may include an atomization sheet 151 and a field effect tube 152, the positive electrode of the atomization sheet 151 is electrically connected to the drain electrode (i.e., the D electrode) of the field effect tube 152, the negative electrode of the atomization sheet 151 is electrically connected to the source electrode (i.e., the S electrode) of the field effect tube 152, and the gate electrode (i.e., the G electrode) of the field effect tube 152 is used to access an enable signal for driving the atomization sheet 151 to atomize the target solution, and the enable signal can be used to control the field effect tube 152 to be turned on or off according to a set frequency.

[0066] The atomizing sheet 151 may be a microporous atomizing sheet or a ceramic atomizing sheet, which can break up the molecular structure in the target solution and produce naturally flowing mist (i.e., target spray) through high-frequency resonance or oscillation. The atomizing driving circuit corresponding to the field effect tube 152 can generate high-frequency oscillation to drive the atomizing sheet 151 to work.

[0067] Optionally, the atomization module 15 may further include a first inductor, a first capacitor and a first resistor; wherein the first input end of the first inductor is electrically connected to the drain of the field effect tube, the second input end of the first inductor is used to access the power-on signal of the controller for the atomization module 15, the output end of the first inductor is electrically connected to the positive electrode of the atomization sheet through the first capacitor, and the first resistor is located on the first branch in parallel with the circuit between the negative electrode of the atomization sheet 151 and the source of the field effect tube.

[0068] Therefore, the atomization module 15 can also be used to perform current sampling on the current in the first branch, obtain a second current sampling result, and send the second current sampling result to the controller 11. The second current sampling result can be used to characterize the rate at which the atomization module 15 generates the target spray.

[0069] In this way, not only can the hydrogen production drive module 12 (or the portable hydrogen production device) start to produce hydrogen be responded to more promptly, but also the rate at which the atomization module 15 produces the target spray can be reflected.

[0070] See also Figure 5 As shown, it is a schematic diagram of the circuit structure of an atomization module provided in an embodiment of the present application. Assume that the field effect tube 152 is an N-channel field effect tube Q1 as an example. Q1 can be connected to the atomization sheet 151 through the interface CON2 of the atomization sheet 151 (e.g., it can be a 2-pin terminal block). Figure 5 As shown, the D pole of Q1 can be connected to the 1st pin of CON2 through the 1st terminal of the inductor L1 (i.e., the first inductor, or the boost inductor) (i.e., the first input terminal of L1), the 3rd terminal of L1 (i.e., the output terminal of L1) and the capacitor C3 (i.e., the first capacitor), and the S pole of Q1 can be connected to the 2nd pin of CON2. The 1st pin can be used to access the positive driving signal of the atomizer sheet 151 (which can be expressed as ATOM+), and the 2nd pin can be used to access the negative driving signal of the atomizer sheet 151 (which can be expressed as ATOM-).

[0071] In addition, the second end of L1 (ie, the second input end of L1) can be used to access the power-on signal VIN of the controller 11 for the atomization module 15. Optionally, the 3rd and 4th pins of CON2 are grounded to strengthen the fixation of the atomization sheet 151.

[0072] The G pole of Q1 can be used to access the enable signal (which can be expressed as ATOM_PFG) from the controller 11 for driving the atomizer 151 to atomize the target solution. For example, the aforementioned enable signal can be a pulse width modulation (PWM) signal of a specific frequency output by the controller 11. Of course, it can also be other modulation signals that can be used to control Q1 to be turned on or off, and the embodiment of the present application does not specifically limit this.

[0073] It is understandable that the operating frequency (i.e., resonant frequency) and the operating amplitude of the atomizer sheet 151, i.e., the positive driving signal and the negative driving signal of the atomizer sheet 151 are adjusted by the frequency and duty cycle of the enable signal ATOM_PFG. If the frequency of the enable signal ATOM_PFG is greater, the operating frequency (i.e., resonant frequency) of the atomizer sheet 151 is greater. If the duty cycle of the enable signal ATOM_PFG is greater, the operating amplitude of the atomizer sheet 151 is greater.

[0074] Since the signal connected to the G pole of Q1 (i.e., the enable signal for driving the atomizer plate 151 to atomize the target solution) is a control signal of a specific frequency, it can ensure that the atomization drive circuit corresponding to the field effect transistor 152 can generate an oscillation signal to drive the atomizer plate 151 to work, namely, ATOM+ and ATOM-, thereby ensuring that the portable hydrogen production device can generate a target spray that can remind the user that the portable hydrogen production device has started operating while generating hydrogen.

[0075] Furthermore, the atomization module 15 can also perform current sampling at the S pole of Q1 through the atomization current sampling detection signal to obtain a second current sampling result that can characterize the magnitude of the atomization current, thereby determining the rate of the target spray generated by the atomization module 15. The atomization current sampling detection signal can be represented as ATOM_ADC. Figure 5 As shown, the atomization module 15 can perform current sampling on the first branch consisting of the resistor R6 (ie, the first resistor), the capacitor C4 and the resistor R7 through the atomization current sampling detection signal ATOM_ADC to obtain a second current sampling result.

[0076] It should also be noted that the above Figure 5 This is only a schematic diagram of the circuit structure of an atomization module. The atomization drive circuit corresponding to Q1 may also contain other electronic components or branches for improving the circuit. For example, pin 1 of interface CON2 and pin 2 of CON2 may also be connected via capacitor C5, which may be a filter capacitor, and this embodiment of the application does not limit this.

[0077] In addition, when the electrolytic cell 14 (or the portable hydrogen production device) falls over, the hydrogen production electrode sheet 13 is easily exposed outside the hydrogen production solution, and the hydrogen production rate of the portable hydrogen production device may slow down or fail to continue to produce hydrogen. Figure 4As shown, the portable hydrogen production device may further include a first detection module 16, which may be used to detect whether the electrolytic cell 14 is abnormally tilted, and when it is detected that the first tilt angle of the electrolytic cell 14 is greater than a preset tilt angle threshold, the first detection result is sent to the controller 11, so that the controller 11 may generate an alarm message according to the first detection result. The aforementioned alarm message may be used to remind the user to adjust the electrolytic cell 14 from the first tilt angle to a second tilt angle, which is less than or equal to the tilt angle threshold.

[0078] For example, assuming that the above-mentioned preset tilt angle threshold is 15°, if the first detection module 16 detects that the first tilt angle of the electrolytic cell 14 is 12°, it can be determined that the first tilt angle of the electrolytic cell 14 is less than the above-mentioned preset tilt angle threshold, and there is no need to send the first detection result to the controller 11. If the first detection module 16 detects that the first tilt angle of the electrolytic cell 14 is 16°, it can be determined that the first tilt angle of the electrolytic cell 14 is greater than the above-mentioned preset tilt angle threshold, and the first detection result can be sent to the controller 11.

[0079] It should be understood that the first detection result can be used to indicate the degree of inclination of the electrolytic cell 14, which may cause leakage of the hydrogen production solution in the electrolytic cell 14 and the problem that the hydrogen production electrode sheet 13 is exposed outside the hydrogen production solution. Therefore, the first detection module 16 can also be called a rollover detection module or a tilt detection module.

[0080] Based on the above method, the first detection module 16 can detect whether the electrolytic cell 14 is abnormally tilted. In addition, the first detection module 16 sends the first detection result to the controller 11 only when it is detected that the first tilt angle of the electrolytic cell 14 is greater than the preset tilt angle threshold, thereby reducing the signaling overhead between the controller 11 and the first detection module 16. That is, the first detection module 16 does not need to report the first detection result indicating that the electrolytic cell 14 is not determined to be abnormally tilted to the controller 11.

[0081] In addition, when the controller 11 determines that the position state of the electrolytic cell 14 is abnormal (i.e., abnormal tilt occurs) according to the first detection result reported by the first detection module 16, an alarm message can be generated to remind the user to adjust the electrolytic cell 14 from the first tilt angle to a second tilt angle less than or equal to the preset tilt angle threshold. In this way, after receiving the alarm message, the user can adjust the position of the electrolytic cell 14 (or the portable hydrogen production device) so that the electrolytic cell 14 is restored from the first tilt angle to the second tilt angle, that is, the electrolytic cell 14 is restored to a normal working state.

[0082] For example, see Figure 6As shown, it is a schematic diagram of the circuit structure of a first detection module provided in an embodiment of the present application. The first detection module 16 may include a digital three-axis acceleration sensor chip U2 for detecting whether the electrolyzer 14 is abnormally tilted. U2 can communicate with the controller 11 through an internal integrated circuit (inter-integrated Circuit, I2C) bus interface to transmit the three-axis acceleration information of the electrolyzer 14, that is, to obtain information on whether the electrolyzer 12 (or the portable hydrogen production device) is abnormally tilted.

[0083] U2 can exchange data with the controller 11 through the serial data line (SDL) corresponding to the SDx pin, and synchronize data transmission with the controller 11 through the clock line (SCL) corresponding to the SCx pin. Among them, I2C_SDL can represent the data signal of the controller 11, and I2C_SCL can represent the clock signal of the controller 11.

[0084] In addition, if Figure 6 The first detection module shown may also include other electronic components or branches, which are not limited in the present embodiment. For example, the controller 11 may be connected to the INT pin of U2, so as to obtain the collected information of U2 in an interrupt manner. Among them, G_INT may represent the interrupt signal of the controller 11.

[0085] In order to better remind the user of the tilt degree of the electrolytic cell 14, the hydrogen production solution in the electrolytic cell 14 may leak and / or the hydrogen production electrode sheet 13 may be exposed to the hydrogen production solution. Figure 4 As shown, the portable hydrogen production device may further include an alarm module 17, which may be used to receive a second control signal from the controller 11. The aforementioned second control signal may be used to instruct the alarm module 17 to broadcast the alarm information in a preset information alarm manner.

[0086] Exemplarily, the preset information alarm mode may include the period, number of broadcasts, and broadcast form (e.g., voice broadcast) of the alarm information broadcast by the alarm module 17, which is not specifically limited in the embodiment of the present application. Optionally, the alarm module 17 may be a device such as a buzzer, which is not specifically limited in the embodiment of the present application.

[0087] In an optional implementation, Figure 4As shown, the portable hydrogen production device may further include a second detection module 18, which may be used to determine the remaining solution amount of the hydrogen production solution in the electrolyzer 14 in combination with the voltage measurement result of the second branch composed of the second resistor and the third resistor on the first drive circuit, and when it is detected that the remaining solution amount is less than a preset solution amount threshold, the second detection result is sent to the controller 11, so that the controller 11 can generate a third control signal for shutting down the hydrogen production drive module 12 according to the second detection result.

[0088] Taking the water surface of the remaining solution in the electrolyzer 14 as an example, assuming that the above-mentioned preset solution volume threshold is that the height of the water surface of the remaining solution from the bottom of the electrolyzer 14 is 3 cm, if the second detection module 18 detects that the height of the water surface of the remaining solution from the bottom of the electrolyzer 14 is 2 cm, it can be determined that the remaining solution in the electrolyzer 14 is less than the above-mentioned preset solution volume threshold. At this time, the second detection module 18 can send a second detection result characterizing that the remaining solution amount of the hydrogen production solution in the electrolyzer 14 is insufficient to the controller 11. In this way, after receiving the second detection result, the controller 11 can generate a third control signal for shutting down the hydrogen production drive module 12 according to the second detection result, thereby preventing dry burning from occurring in the electrolyzer 14. That is, no hydrogen production solution is energized in the electrolyzer 14, or the hydrogen production solution in the electrolyzer is burned dry. Therefore, the second detection module 18 can also be referred to as an anti-dry burning detection module.

[0089] For example, Figure 3 As shown, the second detection module 18 can be used to measure the remaining solution amount of the target solution in the electrolytic cell 14 in combination with the voltage measurement result (i.e., V_ADC) obtained by measuring the voltage of the second branch composed of resistor R8 (i.e., the second resistor) and resistor R9 (the third resistor).

[0090] In an optional implementation, the portable hydrogen production device may further include a status display module (not shown) connected to the controller 11. Figure 4 As shown in the figure), the status display module can be used to display whether the portable hydrogen production device is operating normally, and the remaining situation of the hydrogen production solution in the electrolyzer 14 (that is, whether the remaining solution amount of the hydrogen production solution is less than a preset solution amount threshold).

[0091] Taking the above-mentioned status display module as a light emitting diode (LED) as an example, the LED can indicate different working states of the portable hydrogen production device through different luminous colors. For example, the LED does not emit light, indicating that the portable hydrogen production device is not turned on or not running, the LED emits green light, indicating that the portable hydrogen production device is operating normally, and the amount of remaining solution in the electrolyzer 14 is greater than the above-mentioned preset solution amount threshold, the LED emits red light, indicating that the portable hydrogen production device is operating normally, but the amount of remaining solution in the electrolyzer 14 is less than the above-mentioned preset solution amount threshold, and the LED emits yellow light, indicating that the portable hydrogen production device is operating normally, but the electrolyzer 14 is abnormally tilted. Optionally, the priority of the LED emitting red light may be greater than the priority of the LED emitting yellow light.

[0092] Based on the above method, through the information displayed by the status display module, the user can quickly obtain the status information of the portable hydrogen production device, so as to adaptively adjust the portable hydrogen production device according to needs.

[0093] In an optional implementation, the portable hydrogen production device may also include an energy supply module (not shown in Figure 4 As shown in the figure, the energy supply module may specifically include a charging submodule and an energy storage submodule (such as a solid-state battery, etc.). The charging submodule is electrically connected to the energy storage submodule and the controller 11, respectively. In this way, when the controller 11 itself has insufficient energy storage, the charging submodule can supplement the electrical energy stored in the energy storage submodule to the controller 11 to ensure that the entire portable hydrogen production device can work normally.

[0094] It should be understood that the portable hydrogen production device provided in the embodiment of the present application may be a handheld hydrogen production device, a wearable hydrogen production device, etc., and the embodiment of the present application does not specifically limit this.

[0095] To summarize, in the portable hydrogen production device provided in the embodiment of the present application, a positive driving signal of the hydrogen production electrode sheet that matches the hydrogen production rate required by the user is generated by the first driving circuit of the hydrogen production driving module, and a negative driving signal of the hydrogen production electrode sheet is generated by the second driving circuit of the hydrogen production driving module, thereby realizing flexible control of the hydrogen generation rate of the portable hydrogen production device, thereby solving the current problem of low flexibility in controlling the hydrogen generation rate and difficulty in meeting different hydrogen generation needs, and improving the operability of the hydrogen equipment device.

[0096] Furthermore, based on the same technical concept, the embodiment of the present application provides a hydrogen production method to flexibly control the hydrogen production rate of the hydrogen production device, improve the operability of the hydrogen production device, and thus meet different hydrogen production requirements. Figure 7 As shown, it is a schematic diagram of an implementation process of a hydrogen production method provided in an embodiment of the present application, and the execution subject is as follows Figure 2 or Figure 4 Taking the portable hydrogen production device shown in the figure as an example, the specific implementation process of the method is as follows:

[0097] S701: Obtain the hydrogen generation rate required by the user from the hydrogen preparation request.

[0098] Specifically, when executing step S701, when the portable hydrogen production device receives the hydrogen production request from the user, it can obtain the hydrogen production rate required by the user from the hydrogen production request.

[0099] S702: adjusting the positive electrode driving signal of the hydrogen production electrode plate generated by the first driving circuit according to the hydrogen generation rate to obtain an adjusted positive electrode driving signal.

[0100] Exemplarily, when executing step S702, the portable hydrogen production device can determine the size of the positive electrode drive signal generated by the first drive circuit included in the hydrogen drive module according to the hydrogen generation rate required by the user, thereby adjusting the positive electrode drive signal of the hydrogen production electrode plate generated by the first drive circuit at this time to obtain the adjusted positive electrode drive signal, thereby ensuring that the subsequent portable hydrogen production device can produce hydrogen that meets the user's hydrogen generation needs.

[0101] In an optional implementation, the portable hydrogen production device can determine the target resistance value of the adjustable resistor connected to the first drive circuit corresponding to the hydrogen generation rate required by the user based on the correspondence between the preset hydrogen generation rate and the resistance value of the adjustable resistor in the first drive circuit connected to the first drive circuit, thereby adjusting the resistance value of the adjustable resistor connected to the first drive circuit according to the target resistance value until the resistance value of the adjustable resistor connected to the first drive circuit reaches the target resistance value. Then, after adjusting the resistance value of the adjustable resistor connected to the first drive circuit based on the target resistance value, the positive electrode drive signal matching the hydrogen generation rate required by the user can be generated through the adjusted first drive circuit.

[0102] Optionally, the portable hydrogen production device can also obtain a current sampling result for characterizing the actual hydrogen generation rate of the hydrogen production drive module by current sampling the current in the second drive circuit, thereby making real-time adjustments to the portable hydrogen production device based on the current sampling result and the hydrogen generation rate required by the user to meet user needs.

[0103] S703: Based on the adjusted positive electrode driving signal and the negative electrode driving signal of the hydrogen production electrode plate generated by the second driving circuit, the hydrogen production electrode plate is controlled to produce hydrogen in the electrolytic cell containing the hydrogen production solution.

[0104] Optionally, the hydrogen-producing electrode sheet is placed in an electrolyzer to electrolyze the hydrogen-producing solution by ALK electrolysis of water to produce hydrogen, PEM electrolysis of water to produce hydrogen, SOEC or AEM, etc., which is not limited in the embodiments of the present application.

[0105] In an optional implementation, the portable hydrogen production device can also detect whether the electrolyzer is abnormally tilted, and when it is detected that the first tilt angle of the electrolyzer is greater than a preset tilt angle threshold, an alarm message is generated according to the first detection result to remind the user to adjust the electrolyzer from the first tilt angle to a second tilt angle less than or equal to the preset tilt angle threshold. In this way, the problem that when the electrolyzer falls over, the hydrogen production electrode sheet is exposed outside the hydrogen production solution, causing the portable hydrogen production device to slow down the hydrogen production rate or be unable to continue to produce hydrogen can be effectively improved.

[0106] In addition, the portable hydrogen production device can also determine the remaining solution amount of the hydrogen production solution in the electrolyzer by measuring the voltage of the second branch composed of the second resistor and the third resistor on the first drive circuit to obtain the voltage measurement result, and the second detection device The measurement result of the hydrogen production solution determines the remaining solution amount of the hydrogen production solution in the electrolyzer, and when it is detected that the remaining solution amount is less than the preset solution amount threshold, the hydrogen production drive module can be shut down according to the second detection result to stop hydrogen preparation, thereby effectively preventing dry burning in the electrolyzer and improving the safety of the portable hydrogen production device.

[0107] Therefore, based on the hydrogen production method described in steps S701 to S703 above, the user can flexibly control the hydrogen generation rate of the portable hydrogen production device according to his or her own hydrogen generation needs, thereby improving the user's operability.

[0108] Furthermore, it should be understood that what is disclosed above is only a preferred embodiment of the present application, and certainly cannot be used to limit the scope of rights of the present invention. Therefore, equivalent changes made according to the claims of the present invention are still within the scope covered by the present application.

Claims

1. A portable hydrogen production device, characterized in that: include: Controller, hydrogen production drive module, hydrogen production electrode sheet and electrolyzer; Among them, The hydrogen production drive module is electrically connected to the controller and the hydrogen production electrode sheet respectively; wherein the first control signal of the controller is used to enable the hydrogen production drive module, the first drive circuit in the hydrogen production drive module is used to generate the positive electrode drive signal of the hydrogen production electrode sheet according to the hydrogen production rate required by the user, and the second drive circuit in the hydrogen production drive module is used to generate the negative electrode drive signal of the hydrogen production electrode sheet; The hydrogen production electrode sheet is placed in the electrolytic cell containing the hydrogen production solution; wherein the hydrogen production electrode sheet is used to produce hydrogen according to the positive electrode driving signal, the negative electrode driving signal and the hydrogen production solution.

2. The device according to claim 1, characterized in that The first driving circuit includes an adjustable resistor and a signal generating module. The adjustable end of the adjustable resistor is electrically connected to the output end and the feedback end of the signal generating module respectively. The adjustable resistor is used to adjust the size of the feedback signal at the feedback end. The signal generating module is used to adjust the size of the positive driving signal output by the output end according to the feedback signal.

3. The device according to claim 1, characterized in that The hydrogen production drive module is also used to sample the current in the second drive circuit to obtain a first current sampling result, and send the first current sampling result to the controller; wherein the first current sampling result is used to characterize the hydrogen generation rate of the hydrogen production drive module.

4. The device according to claim 1, 2 or 3, characterized in that The device also includes an atomization module, which is used to atomize the target solution when the hydrogen-producing electrode sheet prepares hydrogen according to the positive electrode driving signal and the negative electrode driving signal to obtain a corresponding target spray.

5. The device according to claim 4, characterized in that The atomization module includes an atomization sheet and a field effect tube, wherein the positive electrode of the atomization sheet is electrically connected to the drain electrode of the field effect tube, the negative electrode of the atomization sheet is electrically connected to the source electrode of the field effect tube, and the gate electrode of the field effect tube is used to access an enable signal for driving the atomization sheet to atomize the target solution, and the enable signal is used to control the field effect tube to be turned on or off according to a set frequency.

6. The device according to claim 5, characterized in that The atomization module further includes a first inductor, a first capacitor and a first resistor; wherein the first input end of the first inductor is electrically connected to the drain of the field effect tube, the second input end of the first inductor is used to access the power-on signal of the controller for the atomization module, the output end of the first inductor is electrically connected to the positive electrode of the atomization sheet through the first capacitor, and the first resistor is located on the first branch in parallel with the circuit between the negative electrode of the atomization sheet and the source of the field effect tube; The atomization module is also used to perform current sampling on the current in the first branch to obtain a second current sampling result, and send the second current sampling result to the controller; wherein the second current sampling result is used to characterize the rate at which the atomization module produces the target spray.

7. The device according to claim 1, 2 or 3, characterized in that The device also includes a first detection module, which is used to detect whether the electrolytic cell is abnormally tilted, and when it is detected that the first tilt angle of the electrolytic cell is greater than a preset tilt angle threshold, the first detection result is sent to the controller, so that the controller generates an alarm message based on the first detection result, and the alarm message is used to remind the user to adjust the electrolytic cell from the first tilt angle to a second tilt angle, where the second tilt angle is less than or equal to the tilt angle threshold.

8. The device according to claim 7, characterized in that The device further comprises an alarm module, wherein the alarm module is used to receive a second control signal from the controller, and the second control signal is used to instruct the alarm module to broadcast the alarm information in a preset information alarm mode.

9. The device according to claim 1, 2 or 3, characterized in that The device also includes a second detection module, which is used to determine the remaining solution amount of the hydrogen production solution in the electrolyzer in combination with the voltage measurement result of the second branch composed of the second resistor and the third resistor on the first drive circuit, and when it is detected that the remaining solution amount is less than a preset solution amount threshold, the second detection result is sent to the controller, so that the controller generates a third control signal according to the second detection result, and the third control signal is used to shut down the hydrogen production drive module.

10. A method for producing hydrogen, characterized in that: A portable hydrogen production device as claimed in any one of claims 1 to 9, comprising: Obtaining the hydrogen generation rate required by the user from the hydrogen preparation request; According to the hydrogen generation rate, the positive electrode driving signal of the hydrogen production electrode plate generated by the first driving circuit is adjusted to obtain an adjusted positive electrode driving signal; Based on the adjusted positive electrode driving signal and the negative electrode driving signal of the hydrogen production electrode plate generated by the second driving circuit, the hydrogen production electrode plate is controlled to produce hydrogen in the electrolytic cell containing the hydrogen production solution.

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