Low-voltage voltage regulating and stabilizing device capable of treating three-phase imbalance

Abstract

The utility model discloses a low-voltage voltage regulating and stabilizing device capable of governing three-phase imbalance, which belongs to the technical field of power supply and distribution and comprises a cabinet body with a cabinet door. The cabinet body is internally provided with three independent voltage regulation driving plates which are composed of a main control board with an intelligent control chip, a bidirectional silicon controlled rectifier and a control unit, the two sides of the cabinet body are provided with heat dissipation openings and provided with heat dissipation plates in a matched mode, and the two sides of the cabinet body are hinged to installation assemblies used for rapidly installing and disassembling the heat dissipation plates respectively. Through the threaded knob, the mounting plate arranged in a hinged mode and the mounting groove formed in the mounting plate, a worker only needs to unscrew the threaded knob with hands and turn over the mounting plate, and then the heat dissipation plate can be taken out; during installation, the heat dissipation plate is aligned and slid into the T-shaped sliding rails in the T-shaped grooves and the installation grooves, then the threaded rotary knobs are screwed, tools such as screwdrivers and wrenches are not needed in the whole process, the convenience of cleaning the heat dissipation plate is effectively improved, and the workload of operation and maintenance personnel is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of power supply and distribution, especially to low pressure pressure regulating and stabilizing device of three -phase unbalance management. BACKGROUND

[0002] Low voltage distribution system is influenced by factors such as superior power grid voltage fluctuation, load impact (such as motor starting, high -power equipment switching) etc., voltage is often high or low. Voltage is too low to cause motor speed to drop, heat to intensify, even unable to start, voltage is too high to accelerate the insulation aging of electrical equipment, shorten the life of lamps, household appliances and other equipment, increase the security risk such as electric leakage, fire, and the current market mostly adopts low pressure pressure regulating and stabilizing device to manage three -phase unbalance, in the whole working process, the protection circuit of pressure regulating drive board and the overload protection function of isolation balance transformer real -time monitoring system state, if overcurrent, overvoltage, overheat and other faults occur, immediately cut off the corresponding circuit, and send alarm signal to external monitoring system through communication interface, realize fault early warning and rapid disposal.

[0003] The traditional low pressure pressure regulating and stabilizing device needs to be cooled in time during operation, especially in complex industrial environment, the heat dissipation hole is easy to block, if unable to clean in time, the cabinet component overheats, causes performance attenuation or failure, therefore the cabinet of low pressure pressure regulating and stabilizing device is equipped with a heat sink, which plays a role in heat dissipation in the cabinet, but the heat sink is usually fixed on the cabinet by multiple screws, and tools such as screwdrivers and wrenches are needed during disassembly, which is complicated and time-consuming, and the disassembled screws are not properly stored, which is easy to be lost. UTILITY MODEL CONTENTS

[0004] The utility model discloses a low pressure pressure regulating and stabilizing device of three -phase unbalance management.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] The low pressure pressure regulating and stabilizing device of three -phase unbalance management comprises a cabinet body with a cabinet door, three independent pressure regulating drive boards composed of a main control panel with an intelligent control chip, a bidirectional thyristor and a control unit are arranged in the cabinet body, three independent pressure regulating magnetic induction windings and an isolation balance transformer are arranged in the cabinet body, heat dissipation holes are formed in the two sides of the cabinet body, and heat sinks are arranged in cooperation, and mounting assemblies for quickly mounting and dismounting the heat sinks are hingedly arranged on the two sides of the cabinet body.

[0007] Further description of the above technical scheme:

[0008] The mounting assembly comprises a mounting plate hingedly arranged outside the cabinet body and a screw knob for limiting the deflection of the mounting plate, the cabinet body is provided with a threaded connection hole matched with the screw knob, the mounting plate is provided with a mounting groove matched with the heat dissipation plate, and the heat dissipation plate is provided with a through hole matched with the screw knob.

[0009] As a further description of the above technical solution:

[0010] The inner wall of the mounting groove is fixedly arranged on the T-shaped slide rail, and the outer side of the heat dissipation plate is provided with a T-shaped groove matched with the T-shaped slide rail.

[0011] As a further description of the above technical solution:

[0012] One end of the screw knob is an operation part, the other end is a threaded connection part, and the middle part is smooth.

[0013] As a further description of the above technical solution:

[0014] The surface of the mounting plate is provided with a threaded hole matched with the screw knob.

[0015] As a further description of the above technical solution:

[0016] The T-shaped slide rail is fixedly connected with the inner wall of the mounting groove through a bolt.

[0017] As a further description of the above technical solution:

[0018] The inner wall of the mounting groove is provided with a mounting cavity, and a hexagonal nut for threaded connection of the bolt is detachably arranged in the mounting cavity.

[0019] As a further description of the above technical solution:

[0020] The surface of the T-shaped slide rail is provided with a stepped through hole matched with the bolt.

[0021] As a further description of the above technical solution:

[0022] The cabinet door is embedded with a visible window, the lower end of the cabinet body is symmetrically fixed with a supporting leg for supporting the cabinet body, and the surface of the supporting leg is formed with a mounting hole.

[0023] As described above, due to the adoption of the above technical solution, the beneficial effects of the present application are:

[0024] The utility model discloses, through threaded knob, hingedly arranged mounting plate and the mounting slot of setting on the mounting plate, staff only needs to loosen threaded knob by hand, and turns over mounting plate and can take out the heat dissipation board, when installing, the heat dissipation board is slipped into through T -shaped groove and the T -shaped slide rail in the mounting slot alignment, and then tightens threaded knob and can be fixed, and the whole process does not need screwdriver, wrench and other tools, effectively improve the convenience of heat dissipation board cleaning, reduce the work load of operation and maintenance personnel.

[0025] The utility model discloses, through threaded knob and threaded hole, in the process of dismounting, effectively avoid threaded knob to fall off, cause threaded knob to lose, greatly avoid in the process of dismounting, traditional screw easily loses the problem. DRAWINGS

[0026] Figure 1 The overall structure schematic diagram provided by the embodiment of the utility model is shown;

[0027] Figure 2 The heat dissipation board mounting state structure schematic diagram provided by the embodiment of the utility model is shown;

[0028] Figure 3 The heat dissipation board dismounting state structure schematic diagram provided by the embodiment of the utility model is shown;

[0029] Figure 4 The mounting assembly structure schematic diagram provided by the embodiment of the utility model is shown;

[0030] Figure 5 The T -shaped slide rail, bolt and hexagonal nut structure explosion schematic diagram provided by the embodiment of the utility model is shown;

[0031] Figure 6 The mounting plate local structure cross section view provided by the embodiment of the utility model is shown;

[0032] Figure 7 The structure schematic diagram provided by the embodiment of the utility model is shown in A place; Figure 6 The structure schematic diagram provided by the embodiment of the utility model is shown in B place.

[0033] Figure 8 The structure schematic diagram provided by the embodiment of the utility model is shown in A place; Figure 6 The structure schematic diagram provided by the embodiment of the utility model is shown in B place.

[0034] Legend: 1, cabinet body;2, cabinet door;3, supporting leg;4, heat dissipation board;5, mounting plate;6, visible window;7, hinge;8, threaded knob;9, through -hole;10, mounting slot;11, T -shaped slide rail;12, bolt;13, hexagonal nut;14, mounting cavity;15, T -shaped groove;16, threaded hole;17, jack. DETAILED DESCRIPTION

[0035] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0036] Example 1:

[0037] like Figures 1-3 As shown, a low-voltage regulating and stabilizing device for three-phase imbalance includes a cabinet 1 with a door 2, the door 2 being hinged to the cabinet 1, and a safety lock installed on the door 2 (existing technology not specifically described). Inside the cabinet 1 are three independent voltage regulating drive boards, each consisting of a main control board with an intelligent control chip, a bidirectional thyristor, and a control unit, as well as three independent voltage regulating magnetic induction windings and an isolation balancing transformer. The intelligent control chips on the three voltage regulating drive boards respectively collect the voltage and current signals of phases A, B, and C, and share data through internal communication to determine the voltage deviation and three-phase current imbalance of each phase. If the voltage of a certain phase exceeds the rated range, the intelligent control chip on the corresponding voltage regulating drive board generates a control command to adjust the conduction angle of the bidirectional thyristor. Combined with the smoothing effect of the voltage regulating magnetic induction winding, the output voltage of that phase is adjusted in real time until the voltage returns to normal. If the three-phase current imbalance exceeds the standard, the isolation balancing transformer generates a compensation current through the balancing winding based on the current data fed back from the voltage regulating drive board to offset the imbalance component. Simultaneously, the voltage regulating drive board adjusts the current after balancing... The signal fine-tunes the voltage of each phase. The cabinet 1 has heat dissipation vents on both sides and heat dissipation plates 4. The heat dissipation plates 4 are formed with several heat dissipation holes for heat dissipation inside the cabinet 1. The cabinet 1 is hinged to the sides with mounting components for quick installation and removal of the heat dissipation plates 4. Since the heat dissipation plates 4 are exposed to the outside for a long time, dust and other impurities are easy to accumulate on the heat dissipation holes on their surface, which affects the heat dissipation effect. Therefore, the heat dissipation plates 4 can be quickly removed for cleaning, avoiding the traditional method of fixing the heat dissipation plates 4 with multiple screws. This solves the problem that the traditional installation and removal requires tools and is time-consuming.

[0038] Furthermore, the mounting assembly includes a mounting plate 5 hinged to the outside of the cabinet 1 via a hinge 7 and a threaded knob 8 for limiting the deflection of the mounting plate 5. One mounting piece of the hinge 7 is fixedly connected to the outside of the cabinet 1 by screws, and the other mounting piece of the hinge 7 is fixedly connected to the surface of the mounting plate 5 by screws. A threaded connection hole that mates with the threaded knob 8 is provided on the outside of the cabinet 1. In the closed state of the mounting plate 5 (refer to the attached instruction manual). Figure 2 and attached Figure 4), the worker screws the threaded knob 8, so that the threaded knob 8 is connected with the threaded connection hole on the surface of the cabinet body 1, that is, the compression installation of the heat dissipation plate 4 is realized. The installation plate 5 is provided with an installation groove 10 matched with the heat dissipation plate 4. The heat dissipation plate 4 is provided with a through hole 9 matched with the threaded knob 8. In actual use, first, the installation plate 5 is pre-installed in the installation groove 10, and then the threaded knob 8 is inserted into the through hole 9, so that the heat dissipation plate 4 is limited in the up and down direction, and the stability of the installation of the heat dissipation plate 4 is ensured.

[0039] Further, the inner wall of the installation groove 10 is fixedly provided with a T-shaped slide rail 11. The outer side of the heat dissipation plate 4 is provided with a T-shaped groove 15 matched with the T-shaped slide rail 11. In the process of installing the heat dissipation plate 4 into the installation groove 10, the T-shaped groove 15 is aligned with the T-shaped slide rail 11, so that the heat dissipation plate 4 is slid into the installation groove 10, and the heat dissipation plate 4 is limited.

[0040] Further, one end of the threaded knob 8 is an operation part, the other end is a threaded connection part, and the middle part is smooth. The threaded connection part of the threaded knob 8 is used for threaded connection with the threaded connection hole. The operation part of the threaded knob 8 is convenient for the worker to directly operate by both hands without the aid of external tools, so that the portability and comfort of operation are improved.

[0041] Further, the cabinet door 2 is embeddedly provided with a visible window 6, which is convenient for the worker to observe the inside of the cabinet body 1 from the outside. The cabinet body 1 is symmetrically provided at the lower end with a supporting leg 3 for supporting the cabinet body 1. The surface of the supporting leg 3 is formed with an installation hole. The supporting leg 3 supports the cabinet body 1, so that the lower end of the cabinet body 1 is in a suspended state and does not contact the bottom surface, thereby avoiding the influence of the damp bottom surface. When the cabinet body 1 needs to be fixedly installed, the supporting leg 3 is fixed.

[0042] In the second embodiment, the difference from the first embodiment is that:

[0043] Specifically, as Figure 4As shown, further, the mounting plate 5 surface is provided with a threaded hole 16 matched with the threaded knob 8, when the heat dissipation plate 4 is installed, first, the heat dissipation plate 4 is slid into the mounting groove 10 along the T-shaped slide rail 11, then the threaded knob 8 is sequentially inserted through the threaded hole 16 and the through hole 9, in this process, the threaded connection part of the threaded knob 8 is screwed into the threaded hole 16, then after passing through the through hole 9, it is screwed into the threaded connection hole again, realizing the installation of the heat dissipation plate 4; in actual application, the wall thickness value of the mounting plate 5 is greater than the length value of the threaded connection part of the threaded knob 8, and the threaded hole 16 only has a threaded thread at the inner wall of the end away from the mounting groove 10, so when the heat dissipation plate 4 is disassembled, the staff first separates the threaded connection part of the threaded knob 8 from the threaded connection hole, then pulls the threaded knob 8 outward, so that the threaded connection end of the threaded knob 8 is in the threaded hole 16, that is, the threaded knob 8 is separated from the through hole 9, then the heat dissipation plate 4 can be taken off along the T-shaped slide rail 11, and the threaded knob 8 is not detached in the process of exiting due to the constraint of the threaded hole 16, effectively avoiding the problem of affecting work efficiency caused by the detachment of the threaded knob 8 in the disassembly process.

[0044] Example three, different from example two is:

[0045] Specifically, as shown in Figures 5-8 , the T-shaped slide rail 11 is fixedly connected with the inner wall of the mounting groove 10 through the bolt 12, the inner wall of the mounting groove 10 is provided with a mounting cavity 14, and the mounting cavity 14 is detachably provided with a hexagonal nut 13 for threaded connection of the bolt 12. The inner wall of the mounting cavity 14 is provided with a jack 17 matched with the bolt 12, and the surface of the T-shaped slide rail 11 is provided with a stepped through hole matched with the bolt 12, so that the bolt 12 can penetrate the T-shaped slide rail 11, and the end of the bolt 12 is embedded in the stepped through hole. (Refer to the drawings Figure 8 ) The upper end opening of the mounting cavity 14 is larger than the lower end opening, which is to enable the hexagonal nut 13 to be inserted into the mounting cavity 14 from the upper end opening of the mounting cavity 14, and the lower end opening of the mounting cavity 14 is smaller than the outer diameter of the hexagonal nut 13, which can avoid the hexagonal nut 13 from falling off. When installing, the staff first installs the hexagonal nut 13 in the mounting cavity 14, then places the T-shaped slide rail 11 at the pre-installation position, inserts the bolt 12 through the stepped through hole of the T-shaped slide rail 11 and threadedly connects it with the hexagonal nut 13, and continuously tightens the bolt 12 until the end of the bolt 12 is inserted into the jack 17 (refer to the drawings Figure 7 ), which has the effect of limiting the upper and lower positions.

[0046] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A low-voltage voltage regulating and stabilizing device for addressing three-phase imbalance, comprising a cabinet (1) with a door (2), wherein the cabinet (1) contains three independent voltage regulating drive boards consisting of a main control board with an intelligent control chip, a bidirectional thyristor, and a control unit, as well as three independent voltage regulating magnetic induction windings and an isolation balancing transformer, characterized in that, The cabinet (1) has heat dissipation vents on both sides and heat dissipation plates (4) are provided. The cabinet (1) is hinged to both sides with installation components for quick installation and removal of heat dissipation plates (4).

2. The low-voltage regulating and stabilizing device for addressing three-phase imbalance according to claim 1, characterized in that, The mounting assembly includes a mounting plate (5) hinged to the outside of the cabinet (1) via a hinge (7) and a threaded knob (8) for limiting the deflection of the mounting plate (5). The outside of the cabinet (1) has a threaded connection hole that mates with the threaded knob (8). The mounting plate (5) has a mounting groove (10) that mates with the heat sink (4). The heat sink (4) has a through hole (9) that mates with the threaded knob (8).

3. The low-voltage regulating and stabilizing device for addressing three-phase imbalance according to claim 2, characterized in that, The inner wall of the mounting groove (10) is fixed to the T-shaped slide rail (11), and the outer side of the heat dissipation plate (4) is provided with a T-shaped groove (15) that matches the T-shaped slide rail (11).

4. The low-voltage regulating and stabilizing device for addressing three-phase imbalance according to claim 2, characterized in that, The threaded knob (8) has an operating part at one end and a threaded connection part at the other end, with a smooth middle section.

5. The low-voltage regulating and stabilizing device for addressing three-phase imbalance according to claim 2 or 4, characterized in that, The mounting plate (5) has a threaded hole (16) on its surface that mates with the threaded knob (8).

6. The low-voltage regulating and stabilizing device for addressing three-phase imbalance according to claim 3, characterized in that, The T-shaped slide rail (11) is fixedly connected to the inner wall of the mounting groove (10) by bolts (12).

7. The low-voltage regulating and stabilizing device for addressing three-phase imbalance according to claim 6, characterized in that, The mounting groove (10) has an mounting cavity (14) on its inner wall. The mounting cavity (14) is provided with a hexagonal nut (13) for threaded connection of the bolt (12). The mounting cavity (14) has an insertion hole (17) that mates with the bolt (12) on its inner wall.

8. The low-voltage regulating and stabilizing device for addressing three-phase imbalance according to claim 7, characterized in that, The surface of the T-shaped slide rail (11) is provided with a stepped through hole that matches the bolt (12).

9. The low-voltage regulating and stabilizing device for addressing three-phase imbalance according to claim 1, characterized in that, The cabinet door (2) is embedded with a viewing window (6), and the lower end of the cabinet body (1) is symmetrically fixed with support legs (3) to support the cabinet body (1), and the surface of the support legs (3) is formed with mounting holes.

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