Power supply circuit of aluminum electrolysis cell

Abstract

The utility model discloses a power supply circuit of an aluminum electrolysis cell, and relates to the technical field of electrolysis cells, the power supply circuit comprises a voltage stabilizing circuit, the voltage stabilizing circuit comprises a rectification filter circuit, a first resistor and a first NPN triode, the output end of the rectification filter circuit is connected with one end of the first resistor and the collector electrode of the first NPN triode; the other end of the first resistor is connected with a base electrode of a first NPN triode, and an emitter electrode of the first NPN triode outputs an electrolytic power supply; the electrolytic power supply is connected with one end of the third resistor and the base electrode of the second NPN triode through the second resistor, the collector electrode of the second NPN triode is connected with the base electrode of the first NPN triode, and the emitter electrode of the second NPN triode and the other end of the third resistor are grounded. When the voltage and current of the electrolytic power supply rise, the opening degree of the second NPN triode is increased, the base level of the first NPN triode is lowered, the output of the first NPN triode is reduced, the voltage and current of the electrolytic power supply are reduced, and the stability of the electrolytic power supply is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electrolytic cells, in particular to a power supply circuit of an aluminum electrolytic cell. Background Art

[0002] An electrolytic cell consists of a cell body, an anode, and a cathode. When direct current passes through the cell, an oxidation reaction occurs at the anode-solution interface, and a reduction reaction occurs at the cathode-solution interface, producing the desired product.

[0003] The electrolytic cell requires a DC power supply to complete the heating and electrolysis processes. However, existing DC power supply methods are relatively simple, primarily using industrial power supply conversion, resulting in high energy consumption and significantly increasing the burden on enterprises. Furthermore, the power supply for existing electrolytic cell anode current measurement devices suffers from poor output voltage and current stability, resulting in instability during operation. Utility Model Content

[0004] The purpose of the utility model is to provide a power supply circuit for an aluminum electrolytic cell. When the voltage and current of the electrolytic power supply increase, the opening of the second NPN transistor increases, the base level of the first NPN transistor is pulled down, the output of the first NPN transistor decreases, the voltage and current of the electrolytic power supply decrease, the opening of the second NPN transistor decreases, the base level of the first NPN transistor is pulled up by the output of the rectifier and filter circuit, and the output of the first NPN transistor increases. This cycle is repeated so that the voltage is stabilized within a range.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] One aspect of an embodiment of the present utility model provides a power supply circuit of an aluminum electrolytic cell, the power supply circuit including a voltage stabilizing circuit, the voltage stabilizing circuit including: a rectifier and filter circuit, the input end of the rectifier and filter circuit being connected to a power supply; a first resistor and a first NPN transistor, the output end of the rectifier and filter circuit being connected to one end of the first resistor and the collector of the first NPN transistor, the other end of the first resistor being connected to the base of the first NPN transistor, and the emitter of the first NPN transistor outputting the electrolysis power supply; a second resistor, a third resistor and a second NPN transistor, one end of the second resistor being connected to the electrolysis power supply, the other end of the second resistor being connected to one end of the third resistor and the base of the second NPN transistor, the collector of the second NPN transistor being connected to the base of the first NPN transistor, and the emitter of the second NPN transistor and the other end of the third resistor being grounded.

[0007] In some embodiments, the voltage stabilizing circuit further includes a third NPN transistor, the base of the third NPN transistor is connected to the emitter of the first NPN transistor, the collector of the third NPN transistor is connected to the output end of the rectifier and filter circuit, and the emitter of the third NPN transistor outputs the electrolysis power supply.

[0008] In some embodiments, the voltage stabilizing circuit further includes a fourth resistor, one end of the fourth resistor is connected to the base of the third NPN transistor, and the other end of the fourth resistor is grounded.

[0009] In some embodiments, the voltage stabilizing circuit also includes a fifth resistor and a voltage stabilizing diode, one end of the fifth resistor is connected to the output end of the third NPN transistor, the other end of the fifth resistor is connected to the cathode of the voltage stabilizing diode and the emitter of the second NPN transistor, and the anode of the voltage stabilizing diode is grounded.

[0010] In some embodiments, the voltage stabilizing circuit further includes a first capacitor, one end of the first capacitor is connected to the base of the first NPN transistor, and the other end of the first capacitor is grounded.

[0011] In some embodiments, the voltage stabilizing circuit further includes a second capacitor, the emitter of the third NPN transistor is connected to one end of the second capacitor, and the other end of the second capacitor is grounded.

[0012] In some embodiments, the rectifier and filter circuit includes a third capacitor, a fourth capacitor and a rectifier bridge, the input end of the rectifier bridge receives power, the positive output end of the rectifier bridge is connected to the positive electrode of the third capacitor, one end of the fourth capacitor, one end of the first resistor and the collector of the first NPN transistor, the negative output end of the rectifier bridge serves as a ground point, and the negative electrode of the third capacitor and the other end of the fourth capacitor are grounded.

[0013] In some embodiments, the power supply circuit further includes a transformer, the input end of the rectifier and filter circuit is connected to the secondary coil of the transformer, and the primary coil of the transformer receives power.

[0014] In some embodiments, the power supply circuit further includes a photovoltaic array, an inverter and a controller, the input end of the inverter is connected to the output end of the photovoltaic array, the controller is connected to the control end of the inverter to control the output frequency of the inverter, and the output end of the inverter is connected to the primary coil of the transformer.

[0015] In some embodiments, the power supply circuit further includes an energy storage module, and the energy storage module is respectively connected to the photovoltaic array and the inverter.

[0016] According to an embodiment of the present invention, a power supply circuit for an aluminum electrolytic cell has at least the following beneficial effects: when the voltage and current of the electrolytic power supply increase, the second NPN transistor increases its opening, the base level of the first NPN transistor is pulled down, the output of the first NPN transistor decreases, the voltage and current of the electrolytic power supply decrease, the opening of the second NPN transistor decreases, the base level of the first NPN transistor is pulled up by the output of the rectifier and filter circuit, the output of the first NPN transistor increases, and this cycle repeats, so that the voltage stabilizes within a range. At the same time, the present application uses a photovoltaic array, which converts solar energy into electrical energy as the initial power supply, which is energy-saving and environmentally friendly.

[0017] It should be understood that the foregoing general description and the following detailed description are exemplary only and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0019] Figure 1 is a schematic diagram of a voltage stabilizing circuit according to an embodiment;

[0020] Figure 2 FIG. 4 is a principle block diagram of a power supply circuit according to an embodiment. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] The terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the technical features being referred to. Therefore, a feature specified as "first," "second," or "third" may explicitly or implicitly include one or more of such features. In the description of this utility model, unless otherwise specified, "plurality" means two or more.

[0023] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection, electrical connection; direct connection, indirect connection through an intermediate medium, or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0024] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of forms and should not be construed as limited to the examples set forth herein; rather, these example embodiments are provided so that the description of this disclosure will be more comprehensive and complete, and will fully convey the concepts of the example embodiments to those skilled in the art. The accompanying drawings are merely schematic illustrations of the present disclosure and are not necessarily drawn to scale. Identical reference numerals in the figures indicate identical or similar parts, and thus repeated descriptions thereof will be omitted.

[0025] The technical solutions of the embodiments of the present application are briefly described below:

[0026] According to some embodiments, Figure 1 As shown, the present application provides a power supply circuit for an aluminum electrolysis cell, wherein the power supply circuit includes a voltage stabilizing circuit, and the voltage stabilizing circuit includes:

[0027] A rectifier and filter circuit, wherein an input end of the rectifier and filter circuit is connected to a power supply;

[0028] A first resistor R1 and a first NPN transistor Q1, the output end of the rectifier and filter circuit is connected to one end of the first resistor R1 and the collector of the first NPN transistor Q1, the other end of the first resistor R1 is connected to the base of the first NPN transistor Q1, and the emitter of the first NPN transistor Q1 outputs the electrolytic power supply VOUT;

[0029] A second resistor R2, a third resistor R3 and a second NPN transistor Q2, one end of the second resistor R2 is connected to the electrolysis power supply VOUT, the other end of the second resistor R2 is connected to one end of the third resistor R3 and the base of the second NPN transistor Q2, the collector of the second NPN transistor Q2 is connected to the base of the first NPN transistor Q1, and the emitter of the second NPN transistor Q2 and the other end of the third resistor R3 are grounded.

[0030] Based on the working principle of the above embodiment, when the voltage and current of the electrolysis power supply VOUT increase, the second NPN transistor Q2 increases its opening, the base level of the first NPN transistor Q1 is pulled down, the output of the first NPN transistor Q1 decreases, the voltage and current of the electrolysis power supply VOUT decrease, the opening of the second NPN transistor Q2 decreases, the base level of the first NPN transistor Q1 is pulled up by the output of the rectifier and filter circuit, and the output of the first NPN transistor Q1 increases. This cycle is repeated, so that the voltage is stabilized within a range.

[0031] The following is in conjunction with the appendix of this manual Figures 1 to 2 , the preferred embodiments of the present disclosure are further elaborated in detail.

[0032] According to some embodiments, Figure 1 As shown, the voltage stabilizing circuit also includes a third NPN transistor Q3, the base of the third NPN transistor Q3 is connected to the emitter of the first NPN transistor Q1, the collector of the third NPN transistor Q3 is connected to the output end of the rectifier and filter circuit, and the emitter of the third NPN transistor Q3 outputs the electrolytic power supply VOUT.

[0033] The first NPN transistor Q1 and the third NPN transistor Q3 cooperate to perform double amplification.

[0034] According to some embodiments, Figure 1 As shown, the voltage stabilizing circuit further includes a fourth resistor R4 , one end of the fourth resistor R4 is connected to the base of the third NPN transistor Q3 , and the other end of the fourth resistor R4 is grounded.

[0035] The fourth resistor R4 is used to quickly turn off the third NPN transistor Q3 when the power is turned off, thereby reducing delay. At the same time, when the third NPN transistor Q3 is turned off, the fourth resistor R4 can prevent accidental turning on due to external interference.

[0036] Based on the working principle of the above embodiment, when the voltage and current of the electrolysis power supply VOUT increase, the second NPN transistor Q2 increases its opening, the base level of the first NPN transistor Q1 is pulled down, the output of the first NPN transistor Q1 decreases, the base level of the third NPN transistor Q3 is pulled down, the output of the third NPN transistor Q3 decreases, the voltage and current of the electrolysis power supply VOUT decreases, the opening of the second NPN transistor Q2 decreases, the base level of the first NPN transistor Q1 is pulled up by the output of the rectifier and filter circuit, the output of the first NPN transistor Q1 increases, the base level of the third NPN transistor Q3 is pulled up, the output of the third NPN transistor Q3 increases, the voltage and current of the electrolysis power supply VOUT increases, and this cycle is repeated, so that the voltage is stabilized within a range.

[0037] According to some embodiments, Figure 1As shown, the voltage stabilization circuit further includes a fifth resistor R5 and a voltage stabilization diode DZ. One end of the fifth resistor R5 is connected to the output end of the third NPN transistor Q3, and the other end of the fifth resistor R5 is connected to the cathode of the voltage stabilization diode DZ and the emitter of the second NPN transistor Q2. The anode of the voltage stabilization diode DZ is grounded to improve the voltage stability of the circuit.

[0038] According to some embodiments, Figure 1 As shown, the voltage stabilizing circuit further includes a first capacitor C1, one end of the first capacitor C1 is connected to the base of the first NPN transistor Q1, and the other end of the first capacitor C1 is grounded for filtering.

[0039] According to some embodiments, Figure 1 As shown, the voltage stabilizing circuit further includes a second capacitor C2, the emitter of the third NPN transistor Q3 is connected to one end of the second capacitor C2, and the other end of the second capacitor C2 is grounded, so as to filter the electrolysis power supply VOUT.

[0040] According to some embodiments, Figure 1 As shown, the rectifier and filter circuit includes a third capacitor C3, a fourth capacitor C4 and a rectifier bridge DB. The input end of the rectifier bridge DB receives the power supply, the positive output end of the rectifier bridge DB is connected to the positive electrode of the third capacitor C3, one end of the fourth capacitor C4, one end of the first resistor R1 and the collector of the first NPN transistor Q1, the negative output end of the rectifier bridge DB serves as the ground, and the negative electrode of the third capacitor C3 and the other end of the fourth capacitor C4 are grounded.

[0041] According to some embodiments, Figure 2 As shown, the power supply circuit further includes a transformer, the input end of the rectifier and filter circuit is connected to the secondary coil of the transformer, and the primary coil of the transformer receives power.

[0042] Further, such as Figure 2 As shown, the power supply circuit also includes a photovoltaic array, an inverter and a controller. The input end of the inverter is connected to the output end of the photovoltaic array. The controller is connected to the control end of the inverter to control the output frequency of the inverter. The output end of the inverter is connected to the primary coil of the transformer.

[0043] This application uses a photovoltaic array, which converts solar energy into electrical energy as the initial power source, which is energy-saving and environmentally friendly.

[0044] Further, such as Figure 2 As shown, the power supply circuit also includes an energy storage module, which is connected to the photovoltaic array and the inverter respectively.

[0045] The energy storage module stores the electricity converted by the photovoltaic array. When there is sunlight, the photovoltaic array supplies power to the inverter and energy storage module respectively. The inverter generates the electrolytic power supply VOUT after voltage transformation, rectification, and voltage regulation. When there is no sunlight, the energy storage module supplies power to the inverter, which generates the electrolytic power supply VOUT after voltage transformation, rectification, and voltage regulation.

[0046] In the description of the above embodiments, specific features, structures, materials or characteristics may be combined in an appropriate manner in any one or more embodiments or examples.

[0047] While the present disclosure has been described with reference to several exemplary embodiments, it should be understood that the terms used are illustrative and exemplary rather than restrictive. Since the present disclosure can be embodied in various forms without departing from the spirit or substance of the application, it should be understood that the above-described embodiments are not limited to any of the foregoing details, but should be interpreted broadly within the spirit and scope of the appended claims. Therefore, all changes and modifications that fall within the scope of the claims or their equivalents are intended to be covered by the appended claims.

Claims

1. A power supply circuit for an aluminum electrolytic cell, characterized in that: The power supply circuit includes a voltage stabilizing circuit, and the voltage stabilizing circuit includes: A rectifier and filter circuit, wherein an input end of the rectifier and filter circuit is connected to a power supply; A first resistor and a first NPN transistor, the output end of the rectifier and filter circuit is connected to one end of the first resistor and the collector of the first NPN transistor, the other end of the first resistor is connected to the base of the first NPN transistor, and the emitter of the first NPN transistor outputs the electrolysis power supply; a second resistor, a third resistor and a second NPN transistor, one end of the second resistor is connected to the electrolysis power supply, the other end of the second resistor is connected to one end of the third resistor and the base of the second NPN transistor, the collector of the second NPN transistor is connected to the base of the first NPN transistor, and the emitter of the second NPN transistor and the other end of the third resistor are grounded.

2. The power supply circuit according to claim 1, wherein: The voltage stabilizing circuit further includes a third NPN transistor, the base of the third NPN transistor is connected to the emitter of the first NPN transistor, the collector of the third NPN transistor is connected to the output end of the rectifier and filter circuit, and the emitter of the third NPN transistor outputs the electrolysis power supply.

3. The power supply circuit according to claim 2, wherein: The voltage stabilizing circuit further includes a fourth resistor, one end of the fourth resistor is connected to the base of the third NPN transistor, and the other end of the fourth resistor is grounded.

4. The power supply circuit according to claim 2, wherein: The voltage stabilizing circuit also includes a fifth resistor and a voltage stabilizing diode, one end of the fifth resistor is connected to the output end of the third NPN transistor, the other end of the fifth resistor is connected to the cathode of the voltage stabilizing diode and the emitter of the second NPN transistor, and the anode of the voltage stabilizing diode is grounded.

5. The power supply circuit according to claim 1, wherein: The voltage stabilizing circuit further includes a first capacitor, one end of the first capacitor is connected to the base of the first NPN transistor, and the other end of the first capacitor is grounded.

6. The power supply circuit according to claim 2, wherein: The voltage stabilizing circuit further includes a second capacitor, the emitter of the third NPN transistor is connected to one end of the second capacitor, and the other end of the second capacitor is grounded.

7. The power supply circuit according to claim 1, wherein: The rectifier and filter circuit includes a third capacitor, a fourth capacitor and a rectifier bridge. The input end of the rectifier bridge receives power supply, the positive output end of the rectifier bridge is connected to the positive electrode of the third capacitor, one end of the fourth capacitor, one end of the first resistor and the collector of the first NPN transistor, the negative output end of the rectifier bridge serves as the ground, and the negative electrode of the third capacitor and the other end of the fourth capacitor are grounded.

8. The power supply circuit according to claim 1, wherein: The power supply circuit further includes a transformer, the input end of the rectifier and filter circuit is connected to the secondary coil of the transformer, and the primary coil of the transformer receives power.

9. The power supply circuit according to claim 8, wherein: The power supply circuit also includes a photovoltaic array, an inverter and a controller. The input end of the inverter is connected to the output end of the photovoltaic array. The controller is connected to the control end of the inverter to control the output frequency of the inverter. The output end of the inverter is connected to the primary coil of the transformer.

10. The power supply circuit according to claim 9, wherein: The power supply circuit further includes an energy storage module, which is connected to the photovoltaic array and the inverter respectively.

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