Voltage regulating device of deep fusion circuit breaker

Abstract

The invention discloses a voltage adjusting device of a deep fusion circuit breaker, which comprises a mounting plate and three groups of PCBs mounted on the top surface of the mounting plate, the top surface of the mounting plate is fixedly connected with a plurality of groups of mounting studs, the top surface of one side of the mounting plate is fixedly provided with a wire outlet terminal, the top ends of the mounting studs are fixedly connected with the PCBs through mounting bolts, and the PCBs are fixedly connected with the wire outlet terminal through the mounting bolts. Capacitors are fixedly welded to the top faces of the three sets of PCBs, one end of each capacitor is fixedly connected with a dial switch, the dial switches are fixedly connected to the top faces of the PCBs, one side of each dial switch is fixedly connected with a cable connecting plate, a cable shielding plate is fixedly installed at one corner fixing position of each PCB, and the cable shielding plates are fixedly connected with the cable connecting plates. One end of the cable shielding plate is fixedly connected to the top surface of the cable connecting plate, one corner of the top surface of each PCB is fixedly connected with a simple cattle plug, a mounting hole is formed in the middle of the top surface of each PCB, an isolation transformer is fixedly connected in the mounting hole, and the device saves the cost, guarantees the measurement precision and is flexible to assemble.

Description

Technical Field

[0001] The present invention relates to the technical field of voltage regulation, and in particular to a voltage regulation device for a deep fusion circuit breaker. Background Art

[0002] Voltage regulators are widely used in laboratories, factories, hospitals and other places to adjust the input voltage of various electrical equipment to meet the working requirements of different equipment. They have the functions of maintaining voltage stability, ensuring power quality, improving system operation efficiency and ensuring equipment safety, which is conducive to improving power supply quality, optimizing system operation, reducing energy consumption and enhancing equipment stability.

[0003] In a traditional secondary voltage regulating device, the secondary capacitors of the three-phase poles are integrated and cast in an installation box, and the capacity of the secondary capacitors is fixed. After the factory configuration is completed, a voltage regulating device must be matched with the three-phase poles. If a pole has a problem, the entire group (three poles) cannot be used. At the same time, affected by the capacitance of the on-site control cable, there will be a certain error between the on-site voltage accuracy and the factory configuration. Since the secondary capacitors are installed in a fixed box with a fixed capacity, they cannot be adjusted on-site; the inherent capacitance of the on-site secondary cable is inconsistent with the factory-calibrated secondary cable, and the superposition of the capacitances of different measuring cables in the secondary measurement will cause an accuracy inconsistent with the factory setting, which will cause the voltage measurement accuracy error to be large or even out of tolerance and cannot be adjusted on-site, and can only be returned to the factory for processing. Based on the above reasons, the present invention provides a voltage regulating device for a deep-integrated circuit breaker. Summary of the invention

[0004] The object of the present invention is to provide a voltage regulating device for a deeply integrated circuit breaker to solve the problem that the secondary capacitor of the three-phase pole proposed in the above background technology is integrated and cast in an installation box, the capacity of the secondary capacitor is fixed, and after the factory configuration is completed, a voltage regulating device must be matched with the three-phase pole. If a pole has a problem, the group (three poles) cannot be used. At the same time, affected by the capacitance of the on-site control cable, the on-site voltage accuracy will have a certain error with the factory configuration. Since the secondary capacitor is installed in a fixed box, the capacity is fixed and cannot be adjusted on-site; the inherent capacitance of the on-site secondary cable is inconsistent with the factory-calibrated secondary cable. The superposition of the capacitance of different measuring cables in the secondary measurement will cause the accuracy to be inconsistent with the factory setting. This will cause the accuracy error of the voltage measurement to be large or even out of tolerance and cannot be adjusted on-site, and the problem can only be returned to the factory for processing.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a voltage regulating device for a deep fusion circuit breaker, comprising a mounting plate and three groups of PCB boards mounted on the top surface of the mounting plate, the top surface of the mounting plate is fixedly connected with multiple groups of mounting studs, the top surface of one side of the mounting plate is fixedly installed with an outlet terminal, the top of the mounting stud is fixedly connected with a PCB board through a mounting bolt, the top surfaces of the three groups of PCB boards are fixedly welded with capacitors, one end of the capacitor is fixedly connected with a dip switch, the dip switch is fixedly connected to the top surface of the PCB board, one side of the dip switch is fixedly connected with a cable connection board, and a cable shielding plate is fixedly installed at a corner of the PCB board for connecting the cable shielding and poles on the simple cow board A, the simple cow board B, and the simple cow board C.

[0006] One end of the cable shielding plate is fixedly connected to the top surface of the cable connection plate, and a corner of the top surface of the three groups of PCB boards is fixedly connected with a simple plug. A mounting hole is opened in the middle of the top surface of the PCB board, and an isolation transformer is fixedly connected inside the mounting hole. The bottom surface of the isolation transformer is fixedly connected to a lower pressure plate by mounting bolts, and the bottom surface of the isolation transformer is fixedly connected to an upper pressure plate by mounting bolts. Inlet and outlet lines are opened in the middle of the lower pressure plate, and the mounting bolts and mounting studs match. The three poles do not need to be matched, and any three of them can be matched into a circuit breaker, saving costs and manual maintenance time, improving installation and maintenance efficiency, and can be adjusted on-site to the optimal measurement accuracy, ensuring measurement accuracy, improving user experience, improving product quality, reducing costs, and making on-site assembly more flexible.

[0007] Preferably, the top surfaces of the three groups of simple cowl plugs are fixedly connected with simple cowl boards A, simple cowl boards B, and simple cowl boards C near the corners, and the ends of the simple cowl boards A, simple cowl boards B, and simple cowl boards C are connected with connecting wires, and the connecting wires are welded to the top surfaces of the outlet terminals, so that the wires are integrated and connected, which is convenient for subsequent inspection and maintenance of the wires.

[0008] Preferably, three circular holes are provided on the top surface of each group of PCB boards, and the three circular holes are distributed in a triangle. The mounting studs on the top surface of the mounting plate correspond to the positions thereof, so that the PCB board is more stable during installation, forming a stable mounting structure, preventing the PCB board from shaking and affecting the service life of the device, which is beneficial to extending the service life and reducing the use cost and manpower input during maintenance.

[0009] Preferably, the bottom end of the mounting plate is fixedly connected to a fixing frame by bolts, a heat dissipation fan is symmetrically embedded in the middle of the fixing frame, both ends of the heat dissipation fan are symmetrically connected to protection frames, the protection frame is fixedly connected to the inside of the fixing frame by bolts, and a through-arc straight slot is opened on the surface of the protection frame to improve the heat dissipation effect of the heat dissipation fan, increase the ventilation area, improve the heat dissipation performance, and facilitate rapid cooling.

[0010] Preferably, the bottom end of the heat dissipation fan passes through the protective frame at the bottom, the bottom end of the heat dissipation fan is connected to a connecting wire, a power module is fixed to the middle part of the bottom end of the fixing frame, the connecting wire is electrically connected to the power module, and a connecting plug is provided on one side of the power module to facilitate integrated power supply to the power module.

[0011] Preferably, a plurality of circular through holes symmetrically opened in the middle of the fixing frame are distributed at equal intervals, a sliding column is slidably connected inside the circular through hole, a top spring is movablely sleeved on the top of the sliding column, a contact heat conduction plate is fixedly connected to the top of the sliding column, and a retaining ring is fixedly connected to the bottom of the sliding column to prevent the sliding column from falling off and provide a certain supporting force for the sliding column, so that the contact heat conduction plate on the top of the sliding column can contact the heat-generating component, thereby further improving the heat conduction efficiency.

[0012] Preferably, rectangular through grooves are symmetrically opened on both sides of the fixing frame, and a heat sink is fixedly connected inside the rectangular through groove. One end of the heat sink close to the sliding column abuts against the outer wall of the sliding column, so that heat is directed to the heat sink through the sliding column to further improve heat dissipation.

[0013] Preferably, support legs are fixedly connected to the four corners of the bottom end of the fixing frame, and anti-skid pads are fixedly connected to the bottom ends of the support legs, which facilitates the stability of the device during installation, further improves the anti-skid and shock-absorbing effects, and protects the main body of the device.

[0014] Preferably, connecting screw tubes are fixedly connected at the four corners of the top of the fixing frame, the inner wall of the connecting screw tubes is threaded, the top of the connecting screw tubes contacts the bottom surface of the mounting plate, the mounting plate is fixed by bolts and a gap is left between the mounting plate and the fixing frame to facilitate air circulation.

[0015] Preferably, an irregular through groove is provided on the top of the fixing frame, the top surface of the fixing frame is higher than the top surface of the protection frame, and the bottom surface of the fixing frame is lower than the bottom surface of the protection frame, so as to prevent the protection frame from being blocked and affecting ventilation and heat dissipation.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The voltage regulating device designed and invented has an adjustable capacitance on the single-phase regulating board. If the connecting cable is inconsistent with the factory value on site, the capacitor can be fine-tuned on site to achieve the best measurement accuracy, thus solving the accuracy problem, ensuring the high accuracy of the product and improving product quality.

[0018] 2. Each phase pole is equipped with a single-phase adjustment board, and any three poles can be matched into one, which is not easy to make mistakes. It solves the problem that the three-phase poles and the device of the traditional device must be supplied as a whole, which causes the problem of easy matching errors in on-site installation. The three poles do not need to be matched, and any three poles can be matched into a circuit breaker. Replacement of a damaged single pole avoids the cost of purchasing the entire assembly or supporting parts, which can effectively reduce maintenance costs.

[0019] 3. Since the single-phase pole (not three-phase) is matched with the voltage regulating device, the problem of overall rework of the three-phase caused by single-phase quality problems is solved, which greatly improves production efficiency and reduces production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A top view of the present invention;

[0021] Figure 2 A top view of the mounting plate of the present invention;

[0022] Figure 3 It is a schematic diagram of a side view of the mounting plate of the present invention;

[0023] Figure 4 This is a top view of the PCB board of the present invention;

[0024] Figure 5 This is a side view of the PCB board of the present invention;

[0025] Figure 6 It is a schematic diagram of the structure of the fixing frame of the present invention;

[0026] Figure 7 This is a schematic diagram of the bottom structure of the fixing frame of the present invention;

[0027] Figure 8 This is a schematic diagram of the electrical principle of voltage regulation of the present invention;

[0028] Fig. 9 It is a schematic diagram of the electrical principle structure of the present invention.

[0029] Fig.10 For the present invention Figure 6 A schematic diagram of the partially enlarged structure at B in the middle;

[0030] In the figure: 1. PCB board; 2. Cable shielding plate; 3. Capacitor; 4. DIP switch; 5. Adapter plug; 6. Lower pressure plate; 7. Inlet and outlet lines; 8. Upper pressure plate; 9. Isolation transformer; 10. Cable connection plate; 11. Adapter board A; 12. Adapter board B; 13. Adapter board C; 14. Outlet terminals; 15. Mounting studs; 16. Mounting plate; 17. Fixing bracket; 18. Rectangular through groove; 19. Heat sink; 20. Circular through hole; 21. Sliding column; 22. Top spring; 23. Contact heat conducting plate; 24. Retaining ring; 25. Protection frame; 26. Heat dissipation fan; 27. Connecting wires; 28. Power module; 29. ​​Support legs; 30. Connecting screws. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0032] See also Figure 1-8The present invention provides a voltage regulating device for a deep fusion circuit breaker, comprising a mounting plate 16 and three groups of PCB boards 1 mounted on the top surface of the mounting plate 16. The top surface of the mounting plate 16 is fixedly connected with multiple groups of mounting studs 15. The mounting studs 15 are distributed in a triangle shape as a whole, which is conducive to improving the stability during installation. The top surface of one side of the mounting plate 16 is fixedly installed with an outlet terminal 14. The outlet terminal 14 concentrates the connection of the wires in one area, avoiding the disorderly distribution of the wires inside the device, making the wiring more neat and standardized, greatly reducing the difficulty and time of wiring, and improving the installation efficiency. At the same time, maintenance personnel can easily find and detect various connection points, quickly locate fault points, shorten maintenance time, improve equipment maintenance efficiency, and reduce maintenance costs. The top of the mounting stud 15 is fixedly connected to the PCB board 1 through the mounting bolts. The top surfaces of the three groups of PCB boards 1 are fixedly welded with capacitors 3. One end of the capacitor 3 is fixedly connected to a dial switch 4. The capacitor 3 and the dial switch 4 do not contact each other. The dial switch 4 can be used as a simple power switch to control the power on and off of the circuit. By setting a certain position of the dial switch 4 to the on or off state, it is determined whether to provide power to the circuit, thereby realizing power supply control for the entire circuit or part of the circuit module, which is convenient for cutting off the power when the equipment is not needed, saving energy and extending the service life of the equipment. The dial switch 4 is fixedly connected to the top surface of the PCB board 1, and one side of the dial switch 4 is fixedly connected to the cable connection board 10. A cable shielding plate 2 is fixedly installed at a corner of the PCB board 1, which can effectively block and reflect electromagnetic signals, reduce the electromagnetic radiation of the internal signal of the cable to the outside world, and prevent interference with the surrounding electronic equipment and environment. At the same time, it can also prevent external electromagnetic interference from entering the cable, ensuring To ensure the stability and accuracy of signal transmission in the cable, improve signal quality, reduce bit error rate, etc., one end of the cable shielding plate 2 is fixedly connected to the top surface of the cable connecting plate 10, and a simple cow plug 5 is fixedly connected to one corner of the top surface of the three groups of PCB boards 1. A mounting hole is opened in the middle of the top surface of the PCB board 1, and an isolation transformer 9 is fixedly connected inside the mounting hole. The bottom surface of the isolation transformer 9 is fixedly connected to a lower pressure plate 6 by mounting bolts, and the bottom surface of the isolation transformer 9 is fixedly connected to an upper pressure plate 8 by mounting bolts. An inlet and outlet line 7 is opened in the middle of the lower pressure plate 6, and the mounting bolts and mounting studs 15 match.

[0033] Furthermore, the top surfaces of the three groups of cowboy plugs 5 are fixedly connected to cowboy boards A11, B12, and C13 near the corners, the ends of cowboy boards A11, B12, and C13 are connected to connecting wires 27, and the connecting wires 27 are welded to the top surfaces of the outlet terminals 14. The three groups of cowboy plugs 5 are fixedly connected to the top surfaces of cowboy boards A11, B12, and C13.

[0034] Furthermore, three circular holes are arranged on the top surface of each group of PCB boards 1, and the three circular holes are distributed in a triangle. The mounting studs 15 on the top surface of the mounting plate 16 correspond to the positions thereof, providing a reference base point for the installation of the mounting plate 16 and facilitating the installation. During installation, the positions of the three circular holes and the mounting studs 15 can be made corresponding.

[0035] Furthermore, the bottom end of the mounting plate 16 is fixedly connected to a fixing frame 17 by bolts, a heat dissipation fan 26 is symmetrically embedded in the middle of the fixing frame 17, and protective frames 25 are symmetrically connected to both ends of the heat dissipation fan 26. The protective frame 25 is fixedly connected to the inside of the fixing frame 17 by bolts, and a through-arc straight groove is provided on the surface of the protective frame 25 to prevent external debris from directly contacting the impeller, motor and other components of the fan to cause damage thereto, thereby affecting the normal operation and heat dissipation effect of the fan.

[0036] Furthermore, the bottom end of the heat dissipation fan 26 passes through the protective frame 25 at the bottom, and the bottom end of the heat dissipation fan 26 is connected to a connecting wire 27. A power module 28 is fixed to the middle of the bottom end of the fixing frame 17. The connecting wire 27 is electrically connected to the power module 28. A connecting plug is provided on one side of the power module 28. Before using the device, the connecting plug is used to connect the power module 28 to an external power supply to supply power to the power module 28.

[0037] Furthermore, a plurality of equidistantly distributed circular through holes 20 are symmetrically provided in the middle of the fixing frame 17, a sliding column 21 is slidably connected inside the circular through hole 20, a top spring 22 is movably sleeved on the top of the sliding column 21, a contact heat conducting plate 23 is fixedly connected to the top end of the sliding column 21, a retaining ring 24 is fixedly connected to the bottom end of the sliding column 21, and the retaining ring 24 is provided to prevent the sliding column 21 from falling off from the circular through hole 20. When the mounting plate 16 is fixed, the bottom surface of the mounting plate 16 contacts the top surface of the contact heat conducting plate 23, and the mounting plate 16 presses the contact heat conducting plate 23, the sliding column 21 and the retaining ring 24 downward, so that the top spring 22 is compressed.

[0038] Furthermore, rectangular through grooves 18 are symmetrically provided on both sides of the fixing frame 17, and a heat sink 19 is fixedly connected inside the rectangular through groove 18. One end of the heat sink 19 close to the sliding column 21 abuts against the outer wall of the sliding column 21, and one end of the sliding column 21 close to the sliding column 21 is provided with an arc-shaped notch, and the arc-shaped notch matches the sliding column 21 without affecting the sliding of the sliding column 21.

[0039] Furthermore, support legs 29 are fixedly connected to the four corners at the bottom of the fixing frame 17, and anti-skid pads are fixedly connected to the bottom ends of the support legs 29. The anti-skid pads further increase the shock absorption and anti-skid capabilities of the support legs 29, making the fixed installation more stable.

[0040] Furthermore, connecting screw tubes 30 are fixedly connected at the four corners at the top of the fixing frame 17, threads are provided on the inner wall of the connecting screw tubes 30, the top of the connecting screw tubes 30 contacts the bottom surface of the mounting plate 16, and through holes corresponding to and matching the positions of the connecting screw tubes 30 are provided at the diagonals of the mounting plate 16, so as to facilitate installation using screws.

[0041] Furthermore, an irregular through groove is formed on the top of the fixing frame 17 , the top surface of the fixing frame 17 is higher than the top surface of the protection frame 25 , and the bottom surface of the fixing frame 17 is lower than the bottom surface of the protection frame 25 .

[0042] When using the embodiment of the present application:

[0043] When installing a high device, place the mounting plate 16 on the top surface of the fixing frame 17 so that the top end of the connecting screw 30 contacts the bottom surface of the mounting plate 16, so that the positions of the through holes opened at the diagonals of the connecting screw 30 and the mounting plate 16 correspond, and use screws to fix the mounting plate 16 to the top end of the connecting screw 30. During this process, the bottom surface of the mounting plate 16 contacts the top surface of the contact heat conductive plate 23. The mounting plate 16 presses the contact heat conductive plate 23, the sliding column 21 and the retaining ring 24 downward, so that the top spring 22 is compressed. After being compressed, the top spring 22 provides an upward thrust to the contact heat conductive plate 23, so that the contact heat conductive plate 23 and the mounting plate 16 are in contact, which is convenient for heat conduction. At the same time, the heat dissipation fan 26 works to accelerate air flow and heat exchange, which is convenient for cooling the device.

[0044] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A voltage regulating device for a deep fusion circuit breaker, comprising a mounting plate (16) and three groups of PCB boards (1) mounted on the top surface of the mounting plate (16), characterized in that: The top surface of the mounting plate (16) is fixedly connected to a plurality of groups of mounting studs (15); an outlet terminal (14) is fixedly installed on the top surface of one side of the mounting plate (16); the top of the mounting studs (15) is fixedly connected to a PCB board (1) via a mounting bolt; capacitors (3) are fixedly welded to the top surfaces of the three groups of PCB boards (1); one end of the capacitor (3) is fixedly connected to a dial switch (4); the dial switch (4) is fixedly connected to the top surface of the PCB board (1); one side of the dial switch (4) is fixedly connected to a cable connection plate (10); a cable connector is fixedly installed at a corner of the PCB board (1); A shielding plate (2), one end of the cable shielding plate (2) is fixedly connected to the top surface of the cable connection plate (10), a simple plug (5) is fixedly connected to one corner of the top surface of the three groups of PCB boards (1), a mounting hole is opened in the middle of the top surface of the PCB board (1), an isolation transformer (9) is fixedly connected inside the mounting hole, a lower pressure plate (6) is fixedly connected to the bottom surface of the isolation transformer (9) through mounting bolts, an upper pressure plate (8) is fixedly connected to the bottom surface of the isolation transformer (9) through mounting bolts, an inlet and outlet line (7) is opened in the middle of the lower pressure plate (6), and the mounting bolts match the mounting studs (15).

2. A voltage regulating device for a deep fusion circuit breaker according to claim 1, characterized in that: The top surfaces of the three groups of simple cowl plugs (5) are respectively fixedly connected with simple cowl boards A (11), simple cowl boards B (12) and simple cowl boards C (13) near the corners. The ends of the simple cowl boards A (11), simple cowl boards B (12) and simple cowl boards C (13) are connected with wires, which are welded to the top surfaces of the outlet terminals (14).

3. The voltage regulating device of a deep fusion circuit breaker according to claim 1, characterized in that: The top surface of each group of PCB boards (1) is provided with three circular holes, the three circular holes are distributed in a triangular shape, and the mounting studs (15) on the top surface of the mounting plate (16) correspond to the positions thereof.

4. The voltage regulating device of a deep fusion circuit breaker according to claim 1, characterized in that: The bottom end of the mounting plate (16) is fixedly connected to a fixing frame (17) by means of bolts, a heat dissipation fan (26) is symmetrically embedded in the middle of the fixing frame (17), and protection frames (25) are symmetrically connected to both ends of the heat dissipation fan (26), the protection frame (25) is fixedly connected to the inside of the fixing frame (17) by means of bolts, and a through-going arc-shaped straight slot is provided on the surface of the protection frame (25).

5. The voltage regulating device of a deep fusion circuit breaker according to claim 4, characterized in that: The bottom end of the heat dissipation fan (26) passes through the protective frame (25) at the bottom, the bottom end of the heat dissipation fan (26) is connected to a connecting wire (27), a power module (28) is fixed in the middle of the bottom end of the fixing frame (17), the connecting wire (27) is electrically connected to the power module (28), and a connecting plug is provided on one side of the power module (28).

6. The voltage regulating device of a deep fusion circuit breaker according to claim 4, characterized in that: A plurality of circular through holes (20) are symmetrically provided in the middle of the fixing frame (17) and are distributed at equal intervals. A sliding column (21) is slidably connected inside the circular through hole (20). A top spring (22) is movably sleeved on the top of the sliding column (21). A contact heat conducting plate (23) is fixedly connected to the top of the sliding column (21), and a retaining ring (24) is fixedly connected to the bottom of the sliding column (21).

7. The voltage regulating device of a deep fusion circuit breaker according to claim 6, characterized in that: Rectangular through slots (18) are symmetrically formed on both sides of the fixing frame (17), a heat sink (19) is fixedly connected inside the rectangular through slot (18), and the heat sink (19) abuts against the outer wall of the sliding column (21).

8. The voltage regulating device of a deep fusion circuit breaker according to claim 4, characterized in that: Support legs (29) are fixedly connected at four corners of the bottom end of the fixing frame (17), and anti-slip pads are fixedly connected at the bottom ends of the support legs (29).

9. The voltage regulating device of a deep fusion circuit breaker according to claim 4, characterized in that: Connecting screw tubes (30) are fixedly connected at four corners of the top of the fixing frame (17), the inner wall of the connecting screw tube (30) is provided with a thread, and the top of the connecting screw tube (30) is in contact with the bottom surface of the mounting plate (16).

10. The voltage regulating device of a deep fusion circuit breaker according to claim 4, characterized in that: An irregular through slot is formed on the top of the fixing frame (17); the top surface of the fixing frame (17) is higher than the top surface of the protection frame (25); and the bottom surface of the fixing frame (17) is lower than the bottom surface of the protection frame (25).

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