Modularized three-phase voltage stabilizer
Through modular design and intelligent control, combined with composite filters and electrostatic dust removal devices, the problems of mechanical wear, slow response speed and large size of existing three-phase voltage regulators have been solved, achieving efficient and reliable voltage regulation and heat dissipation, and improving the stability and safety of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-28
- Publication Date
- 2026-03-17
AI Technical Summary
Existing three-phase voltage regulators suffer from severe mechanical wear, slow response speed, large size, and unbalanced regulation, making them difficult to adapt to rapid voltage fluctuations and requiring frequent maintenance.
It adopts a modular design, including a housing, an independent voltage regulating module, a layered heat dissipation structure and an intelligent control unit. It uses a microprocessor to achieve phase-by-phase dynamic adjustment, combined with a composite filter and an electrostatic dust removal device to enhance heat dissipation and dust prevention capabilities, and is equipped with a protection module and an adjustable support to improve stability and safety.
It achieves compact, efficient, and reliable voltage regulation, improves response speed and heat dissipation efficiency, reduces maintenance frequency, and enhances equipment safety and adaptability.
Smart Images
Figure CN224006352U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a modular three-phase voltage regulator, and more specifically, it relates to a three-phase voltage regulator that is based on modular design, has a compact structure, is highly efficient and reliable, and is easy to maintain. Background Technology
[0002] A three-phase voltage regulator is a power voltage regulator that uses automatic compensation for voltage regulation. Compared with other types of voltage regulators, this device has the advantages of large capacity, high efficiency, no waveform distortion, and stable voltage regulation. It is suitable for transportation, power, communication, computer systems, and various electric motors.
[0003] Existing three-phase voltage regulators mostly adopt mechanical voltage regulation (such as carbon brush regulation) or transformer structures that occupy a large area. Mechanical voltage regulation structures have the following problems: after long-term use, mechanical wear is more severe, and regulating parts such as carbon brushes will age and require frequent maintenance; the response speed is relatively slow and cannot adapt to rapid voltage fluctuations; the transformer and other supporting equipment are large and heavy, occupying too much of the internal space of the voltage regulator; and the three-phase imbalance regulation capability is insufficient, making it difficult to independently adjust the voltage of each phase. Utility Model Content
[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a three-phase voltage regulator that is based on modular design, has a compact structure, is highly efficient and reliable, and is easy to maintain.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a modular three-phase voltage regulator, comprising a housing, three independent voltage regulating modules, a layered heat dissipation structure, and an intelligent control unit. Each voltage regulating module includes a bidirectional thyristor group and an autotransformer. The intelligent control unit is equipped with a microprocessor, which is used to control the voltage regulating modules and realize phase-by-phase dynamic adjustment. The layered heat dissipation structure includes a heat dissipation substrate disposed below the autotransformer and in direct contact with the bidirectional thyristor group, an axial flow fan disposed at the bottom of the heat dissipation substrate, and a horizontally arranged exhaust channel. The axial flow fan is attached to the inner side of the housing, and the channel direction of the exhaust channel is the same as the air inlet direction of each axial flow fan.
[0006] By adopting the above technical solution, the novel three-phase voltage regulator adopts a modular design, which includes a housing, a voltage regulating module, a layered heat dissipation structure, and an intelligent control unit. The internal structure of the voltage regulating module differs from the conventional mechanical voltage regulating structure. It adopts three independent voltage regulating devices containing bidirectional thyristor groups and autotransformers, and realizes phase-by-phase dynamic adjustment through the microprocessor on the intelligent control unit. This structure is lightweight, compact, efficient, and easy to control. The layered heat dissipation structure includes a heat dissipation substrate set below the autotransformer. The heat dissipation substrate abuts against the bidirectional thyristor groups, so that the heat on the voltage regulating module can be directly transferred to the heat dissipation substrate. Then, the heat is discharged from the inside of the voltage regulator through an axial flow fan and an exhaust channel set at the bottom of the heat dissipation substrate. The airflow of the axial flow fan and the exhaust channel are both horizontal, thus forming a reasonable exhaust structure layout.
[0007] The present invention is further configured such that: a detachable composite filter screen is provided on the upper side of the exhaust channel, and an electrostatic dust removal device is provided on the inner side of the exhaust channel.
[0008] By adopting the above technical solution, the composite filter screen provided on the upper side of the exhaust channel can more effectively filter out dust and other impurities in the airflow compared to conventional filters, preventing impurities inside the voltage regulator from entering the exhaust channel. Furthermore, an electrostatic dust removal device is provided on the inner side of the exhaust channel, which can remove most of the dust entering the exhaust channel through the axial flow fan. This is more effective than physical dust prevention and can effectively prevent dust accumulation, thereby affecting the overall heat dissipation effect.
[0009] The present invention is further configured such that: the composite filter is composed of a HEPA filter, an activated carbon filter and a sterilization filter, and is made of German Henkel hot melt adhesive during the integration process.
[0010] By adopting the above technical solution, the composite filter is an integrated structure of HEPA filter, activated carbon filter and antibacterial filter, and the integration process uses German Henkel hot melt adhesive. Compared with traditional filters, it has a stronger filtration effect and is more durable.
[0011] The present invention is further configured such that: the electrostatic dust removal device includes a device shell, an air inlet disposed on the device shell, a dust collector disposed below the air inlet, and an electrostatic generator disposed inside the device shell. The electrostatic generator is powered by an internal circuit and is used to generate static electricity, thereby generating an electric field inside the device to adsorb and sweep dust into the dust collector.
[0012] By adopting the above technical solution, the electrostatic dust removal device structure includes a device shell, an air inlet installed on the device shell, a dust collector below the air inlet, and an electrostatic generator inside the device shell. The electrostatic generator is used to generate an electrostatic field inside the electrostatic dust removal device, so that the dust entering the exhaust duct can be charged at the air inlet, and then be attracted to the dust collector under the action of the electric field, preventing dust from accumulating in the same place and blocking the exhaust duct, thus affecting the air outlet and heat dissipation efficiency.
[0013] The present invention is further configured such that: the side of the housing is provided with a plurality of heat dissipation holes aligned with the air outlet positions of each axial flow fan, and the heat dissipation holes are surrounded by grooves for placing magnetic dustproof nets.
[0014] By adopting the above technical solution, the side of the housing is provided with a number of heat dissipation holes, which are connected to the air outlet of the axial flow fan, so that the air outlet of the axial flow fan can be connected to the heat dissipation holes, enabling the axial flow fan and the exhaust pipe to exchange gases normally with the outside world, and improving the heat dissipation efficiency in conjunction with the heat dissipation structure.
[0015] The present invention is further configured such that: the microprocessor has a built-in PID algorithm and a three-phase balance algorithm for independently adjusting the output of each phase.
[0016] By adopting the above technical solutions, the PID algorithm can be applied to most process control equipment and can realize basic control functions. The three-phase balance algorithm can evaluate the stability of the system and the rationality of the load. It can analyze and calculate the voltage, current and power parameters in the three-phase circuit, and then adjust the circuit through the processor. Compared with conventional algorithms, it is more stable and reliable.
[0017] The present invention is further configured to include a protection module, wherein the protection module includes a protection circuit that integrates overvoltage, undervoltage, overcurrent and short circuit protection.
[0018] By adopting the above technical solution, the new three-phase voltage regulator is also equipped with a protection module, which includes a protection circuit that integrates overvoltage, undervoltage, overcurrent and short circuit protection. The protection circuit can respond to voltage, current and other fault conditions, and can cut off the circuit in time to protect the internal circuit of the voltage regulator, thereby improving the overall safety of the three-phase voltage regulator.
[0019] The present invention is further configured such that: the bottom of the housing is provided with a detachable adjustable support, the adjustable support including a rubber pad and a height adjustment bolt, the adjustment range of the height adjustment bolt being ±12mm.
[0020] By adopting the above technical solution, the bottom of the housing is provided with a detachable adjustable support. The adjustable support includes a rubber pad and a height adjustment bolt. The rubber pad is made of elastic material that can withstand large impact forces and is not easy to age. The rubber pad will deform when bearing the weight of the three-phase voltage regulator, which improves the grip performance of the rubber pad and also improves the overall stability of the three-phase voltage regulator. The height adjustment bolt can adjust the height of the adjustable support, so that the three-phase voltage regulator can be adjusted according to different scenarios. Attached Figure Description
[0021] Figure 1 This is a diagram showing the internal structure of the modular three-phase voltage regulator of this utility model;
[0022] Figure 2 This is a diagram of the internal structure of the exhaust duct;
[0023] Figure 3 This is a right view of the modular three-phase voltage regulator of this utility model;
[0024] The attached diagram is labeled as follows: 1. Housing; 2. Bidirectional thyristor assembly; 3. Autotransformer; 4. Heat sink; 5. Axial flow fan; 6. Exhaust duct; 7. Composite filter; 8. Device housing; 9. Air inlet; 10. Dust collector; 11. Static generator; 12. Heat dissipation hole; 13. Groove; 14. Rubber pad; 15. Height adjustment bolt. Detailed Implementation
[0025] Reference Figures 1 to 3 The embodiments of the three-phase voltage regulator of this utility model are further described below.
[0026] For ease of explanation, spatial relative terms such as “up,” “down,” “left,” and “right” are used in the embodiments to describe the relationship of one element or feature shown in the figures relative to another element or feature. It should be understood that, in addition to the orientations shown in the figures, spatial terms are intended to include different orientations of the device in use or operation. For example, if the device in the figures is inverted, an element described as being “down” of other elements or features would be positioned “up” of those other elements or features. Therefore, the exemplary term “down” can encompass both up and down orientations. The device may be positioned in other ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.
[0027] Moreover, relational terms such as “first” and “second” are used merely to distinguish one component from another that has the same name, without necessarily requiring or implying any such actual relationship or order between the components.
[0028] A modular three-phase voltage regulator includes a housing 1, three independent voltage regulating modules, a layered heat dissipation structure, and an intelligent control unit. Each voltage regulating module includes a bidirectional thyristor group 2 and an autotransformer 3. The intelligent control unit is equipped with a microprocessor. The layered heat dissipation structure includes a heat dissipation substrate 4 located below the autotransformer 3 and in direct contact with the bidirectional thyristor group 2, an axial flow fan 5 located at the bottom of the heat dissipation substrate 4, and a horizontally arranged exhaust channel 6. The axial flow fan 5 is attached to the inner side of the housing 1. The channel direction of the exhaust channel 6 is the same as the air inlet direction of each axial flow fan 5. The side of the housing 1 is provided with heat dissipation holes 12, and the outer side of the heat dissipation holes 12 is provided with grooves 13. By adopting the above technical solution, the novel three-phase voltage regulator adopts a modular design, with a voltage regulation module, a layered heat dissipation structure, and an intelligent control unit as three modules. The structural area within the voltage regulation module uses three independent voltage regulation devices, each including a bidirectional thyristor group 2 and an autotransformer 3. The intelligent control unit is equipped with a microprocessor, and other control components can be added according to actual control requirements. The microprocessor can receive electrical signals from the three independent voltage regulation devices, and then interpret and process the signals through relevant algorithms to finally achieve phase-by-phase dynamic adjustment of the three voltage regulation devices. The layered heat dissipation structure includes a heat dissipation substrate 4, an exhaust channel 6, and an axial flow fan 5. The heat dissipation substrate 4 is located below the autotransformer 3 and abuts against the bidirectional thyristor group 2. Both the exhaust duct 6 and the axial fan 5 are located below the heat dissipation base plate 4. The outlet of the axial fan 5 is connected to the heat dissipation hole 12, and the exhaust direction of the exhaust duct 6 is consistent with the airflow direction of the axial fan 5. This allows heat to be conducted through the heat dissipation base plate 4 to the air in the exhaust duct 6, and then dissipated to the outside of the voltage regulator by the axial fan 5. This makes the overall heat dissipation layout more orderly and reasonable. The groove 13 is used to set a magnetic dustproof net on the outside of the housing 1. The magnetic dustproof net is usually set when the voltage regulator is not in use, which can effectively prevent external dust from entering. It is not recommended to set it normally in order to improve heat dissipation efficiency. Through the multi-modal structural design, the comprehensive performance of the three-phase voltage regulator can be effectively improved, and the subsequent debugging of the three-phase voltage regulator can be facilitated.
[0029] The microprocessor further achieves dynamic adjustment of the circuit through built-in PID algorithm and three-phase balancing algorithm. The PID algorithm is applicable to most process control equipment. It is simple, easy to implement and debug, and is relatively common. It is also convenient to debug later. The three-phase balancing algorithm can evaluate the stability of the system and the rationality of the load. After analyzing and calculating the voltage, current and power parameters in the three-phase circuit, the microprocessor adjusts the circuit, improving the overall rationality and safety of the system.
[0030] Furthermore, a detachable composite filter 7 is provided on the upper side of the exhaust duct 6. The composite filter 7 is composed of a HEPA filter, an activated carbon filter, and a sterilizing filter, and is made with German Henkel hot melt adhesive during the integration process. Compared with conventional filters, it can more effectively filter out dust and other impurities in the airflow, preventing impurities inside the voltage regulator from entering the exhaust duct 6. An electrostatic dust removal device is also provided inside the exhaust duct 6. The electrostatic dust removal device can remove most of the dust entering the exhaust duct 6, which is superior to physical dust prevention and can effectively prevent dust accumulation, thus avoiding affecting the overall heat dissipation effect. The electrostatic dust removal device includes an external... The device comprises a housing 8, an air inlet 9 disposed on the housing 8, a dust collector 10 disposed below the air inlet 9, and an electrostatic generator 11 disposed inside the housing 8. The electrostatic generator 11 is powered by an internal circuit and is used to generate static electricity, thereby creating an electric field inside the device to attract and sweep dust into the dust collector 10. The electrostatic generator 11 is used to generate an electrostatic field inside the electrostatic dust removal device, so that the dust entering the exhaust duct can be charged at the air inlet 9, and then attracted into the dust collector 10 under the action of the electric field, preventing dust from accumulating in one place and clogging the exhaust duct, thus affecting the air outlet and heat dissipation efficiency.
[0031] This new three-phase voltage regulator also features a protection module, which includes a protection circuit that integrates overvoltage, undervoltage, overcurrent, and short-circuit protection. The protection circuit can respond to voltage, current, and other fault conditions, and can promptly cut off the circuit to protect the internal circuitry of the voltage regulator. This effectively protects the internal circuitry and electronic components, thereby significantly improving the overall safety of the three-phase voltage regulator.
[0032] Furthermore, the bottom of the housing 1 is additionally provided with a detachable adjustable support. The adjustable support includes a rubber pad 14 and a height adjustment bolt 15. The adjustment range of the height adjustment bolt 15 is ±12m. The rubber pad 14 is made of elastic rubber material, which has strong plasticity and can withstand greater impact force. It will deform during use, which increases its contact area with the ground, thus significantly improving the overall stability. The height adjustment bolt 15 and the rubber pad 14 are usually set at the four corners of the housing 1, and the height adjustment bolt 15 at different positions can be adjusted separately, so that the voltage regulator can be stably placed on some uneven surfaces, improving the applicability of the voltage regulator in various scenarios.
[0033] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any ordinary changes and substitutions made by those skilled in the art within the scope of the technical solution of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A modular three-phase voltage regulator, characterized in that, The device includes a housing (1), three independent voltage regulating modules, a layered heat dissipation structure, and an intelligent control unit. Each voltage regulating module includes a bidirectional thyristor group (2) and an autotransformer (3). The intelligent control unit is equipped with a microprocessor, which is used to control the voltage regulating modules and realize phase-by-phase dynamic adjustment. The layered heat dissipation structure includes a heat dissipation substrate (4) located below the autotransformer (3) and in direct contact with the bidirectional thyristor group (2), an axial flow fan (5) located at the bottom of the heat dissipation substrate (4), and a horizontally arranged exhaust channel (6). The axial flow fan (5) is attached to the inner side of the housing (1), and the channel direction of the exhaust channel (6) is the same as the air inlet direction of each axial flow fan (5).
2. A modular three-phase voltage regulator according to claim 1, characterized in that, The exhaust duct (6) is provided with a detachable composite filter (7) on the upper side, and an electrostatic dust removal device is also provided on the inner side of the exhaust duct (6).
3. A modular three-phase voltage regulator according to claim 2, characterized in that, The composite filter (7) is composed of a HEPA filter, an activated carbon filter and a sterilization filter, and is made of German Henkel hot melt adhesive during the integration process.
4. A modular three-phase voltage regulator according to claim 2, characterized in that, The electrostatic dust removal device includes a device housing (8), an air inlet (9) disposed on the device housing (8), a dust collector (10) disposed below the air inlet (9), and an electrostatic generator (11) disposed inside the device housing (8). The electrostatic generator (11) is powered by an internal circuit and is used to generate static electricity, thereby generating an electric field in the device to adsorb and sweep dust into the dust collector (10).
5. A modular three-phase voltage regulator according to claim 1, characterized in that, The housing (1) has several heat dissipation holes (12) on its side that are aligned with the air outlets of each axial fan (5). The heat dissipation holes (12) are surrounded by grooves (13) for placing magnetic dustproof nets.
6. A modular three-phase voltage regulator according to claim 1, characterized in that, The microprocessor is used to independently adjust the output of each phase.
7. A modular three-phase voltage regulator according to claim 1, characterized in that, It also includes a protection module, which includes a protection circuit that integrates overvoltage, undervoltage, overcurrent and short-circuit protection.
8. A modular three-phase voltage regulator according to claim 1, characterized in that, The bottom of the housing (1) is provided with a detachable adjustable support, which includes a rubber pad (14) and a height adjustment bolt (15). The adjustment range of the height adjustment bolt (15) is ±12mm.