CN111128518A

CN111128518A - Voltage unit iron core of combined transformer

Info

Publication number: CN111128518A
Application number: CN201911256442.1A
Authority: CN
Inventors: 赵光景
Original assignee: Nanchang Shunjing Technology Co ltd
Current assignee: Nanchang Shunjing Technology Co ltd
Priority date: 2019-12-10
Filing date: 2019-12-10
Publication date: 2020-05-08

Abstract

The invention belongs to the technical field of combined transformer accessories, and particularly relates to a combined transformer voltage unit iron core which comprises a shell, a top frame, an underframe, a core frame and a top box, wherein the top and the bottom of the shell are fixedly connected with the top frame and the underframe through bolts, the core frame is clamped at the bottom of an inner cavity of the underframe, the top of the top frame is fixedly connected with the top box through bolts, through the combined application of the accessories, holes are formed in the surface of the core frame on the premise that the magnetic conductivity of the core frame can be well ensured, oil-repellent holes which can facilitate the circulation of cooling oil are formed, the contact area of the cooling oil and the core frame is increased, a sensor is arranged in the shell, the temperature, the oil turbidity and the liquid height of the internal environment can be respectively measured, the data can be effectively remotely mastered, and abnormal high temperature, oil turbidity and liquid height can be respectively measured, so that the data, The oil body failure and oil body leakage conditions can be quickly detected, and timely treatment before loss expansion is facilitated.

Description

Voltage unit iron core of combined transformer

Technical Field

The invention relates to the technical field of combined transformer accessories, in particular to a voltage unit iron core of a combined transformer.

Background

The combined transformer is actually a combination of a voltage transformer and a current transformer, and can be a combination of a voltage transformer and a current transformer for measuring single-phase power; the device can be a combination of two voltage transformers and two current transformers and is used for measuring three-phase power in a three-phase three-wire system according to a two-watt metering method; or a combination of three voltage transformers and three current transformers for three-phase electrical measurement.

The combined transformer voltage unit body is usually composed of a primary coil, a secondary coil and an iron core, wherein the iron core of the combined transformer voltage unit is usually a notched iron core, and the requirement on the smoothness of the notched surface of the iron core is high.

In the use at present iron core, need cooperate the cooling oil heat dissipation, in order to guarantee stable effect, but the exchange area of iron core self and cooling oil is restricted, the unable nimble contact of cooling oil, the mobility is poor, there is the drawback also to thermal drive, and at the totally enclosed built-in-process, can't in time notice when the temperature abnormal conditions appears, after the oil body is used for a long time, the flocculation phenomenon can appear in receiving the impurity influence, change and also can cause the cooling effect to reduce when not in time, and after the cooling oil is revealed, also be difficult for noticing, very easily lead to the iron core to lose cooling support, the temperature of iron core sharply rises, make the magnetic conductivity reduce, produce negative effects.

Disclosure of Invention

The invention aims to provide a combined transformer voltage unit iron core, which solves the problems that the prior iron core proposed in the background technology needs to be matched with cooling oil for heat dissipation to ensure a stable effect, but the alternating area of the iron core and the cooling oil is limited, the cooling oil cannot be flexibly contacted, the flowability is poor, the driving of heat is also disadvantageous, in the process of complete sealing and embedding, the abnormal temperature condition cannot be timely detected, after the oil body is used for a long time, the flocculation phenomenon can occur under the influence of impurities, the cooling effect is reduced if the oil body is not timely replaced, and the cooling oil body is not easy to detect after the cooling oil is leaked, so that the iron core loses cooling support, the temperature of the iron core rises sharply, the magnetic permeability is reduced, and the adverse effect is generated.

In order to achieve the purpose, the invention provides the following technical scheme: a combined transformer voltage unit iron core comprises a shell, a top frame, a bottom frame, a core frame and a top box, wherein the top and the bottom of the shell are fixedly connected through bolts, the top frame is fixedly connected with the bottom frame, the core frame is clamped at the bottom of an inner cavity of the bottom frame, the top of the top frame is fixedly connected with the top box through bolts, clamping grooves are formed in the top of the top frame and the top of the bottom frame, through holes are formed in the top of the top frame, sealing caps are connected to the circumferential inner walls of the through holes in a threaded mode, a main partition and an auxiliary partition are integrally formed in the front side wall of the core frame, a main oil dredging hole and an auxiliary oil dredging hole are formed in the front side wall of the core frame, a variable frequency controller and a storage battery are fixedly connected to the bottom of the inner cavity of the top box through screws, an anticorrosion lead is electrically connected to the electrical output end of the variable frequency controller, The electric output end of the variable frequency controller is electrically connected with a wireless transmitter through a wire, the outer wall of the circumference of the core frame is wound with coils, the number of the coils is three, and the diameters of the three groups of the coils are the same.

Preferably, round holes are formed in the top of the top frame and the top of the bottom frame, the main rod and the auxiliary rod are inserted into the circumferential inner wall of the round holes, and fastening nuts are connected to the tops and the bottoms of the main rod and the auxiliary rod in a threaded mode.

Preferably, the top of the top frame is connected with a main side frame and an auxiliary side frame through threads, and the main side frame and the auxiliary side frame are made of insulating rubber plates.

Preferably, the number of the main oil-repelling holes and the number of the auxiliary oil-repelling holes are three, and the opening heights of the three main oil-repelling holes are identical to the opening heights of the three auxiliary oil-repelling holes.

Preferably, the right side wall of the top box is provided with a grid, and an inner cavity of the grid is bonded with a separation net.

Preferably, a main cushion and an auxiliary cushion are bonded to the bottom of the underframe, and the main cushion and the auxiliary cushion are made of hard rubber plates.

Preferably, the core frame is made of silicon steel sheets, and the lamination coefficient of the core frame is not higher than the thickness of the inner cavity of the shell.

Preferably, the width of the core frame is the same as the width of the clamping groove.

Compared with the prior art, the invention has the beneficial effects that: this kind of combination mutual-inductor voltage unit iron core, combination application through the accessory, carry out the trompil to the surface of core frame under the magnetic conductivity of assurance core frame that can be fine, form the oleophobic hole of cooling oil circulation of can being convenient for, increase the area of contact of cooling oil and core frame, and at the built-in sensor of shell, can be to the temperature of internal environment, oil body turbidity and liquid height measure respectively, effectually carry out long-range grasp to data, to unusual high temperature, the condition can all be perceived fast with the oil body condition of revealing, be convenient for in time handle before the loss enlarges, the stability of product error has been greatly improved, the safety cost is reduced, the product market competitiveness has been improved.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of a side unit core according to the present invention;

FIG. 3 is a schematic view of the internal structure of the top box of the present invention.

In the figure: 100 shells, 110 top frames, 120 sealing caps, 130 main side frames, 140 auxiliary side frames, 200 underframe, 210 main cushions, 220 auxiliary cushions, 230 main rods, 240 auxiliary rods, 300 core frames, 310 main barriers, 320 auxiliary barriers, 330 main oil drain holes, 340 auxiliary oil drain holes, 400 top boxes, 410 variable frequency controllers, 420 temperature sensors, 430 turbidity sensors, 440 liquid level sensors, 450 wireless transmitters and 460 storage batteries.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The invention provides a combined transformer voltage unit iron core, which can improve cooling fluidity and effectively monitor the internal environment through the combined application of accessories, please refer to fig. 1-3, and comprises a shell 100, a top frame 110, a bottom frame 200, a core frame 300 and a top box 400;

referring to fig. 1 again, the top of the casing 100 has a top frame 110, specifically, the top and bottom of the casing 100 are fixedly connected to the top frame 110 by bolts, the top of the top frame 110 is connected to a main side frame 130 and an auxiliary side frame 140 by threads, and the main side frame 130 and the auxiliary side frame 140 are made of insulating rubber plates;

referring to fig. 1 again, the top of the bottom frame 200 is fixedly mounted to the bottom of the casing 100, specifically, the top and the bottom of the casing 100 are fixedly connected to the bottom frame 200 through bolts, the top frame 110 and the top of the bottom frame 200 are both provided with clamping grooves, the top frame 110 is provided with through holes, and the circumferential inner walls of the through holes are in threaded connection with the sealing caps 120;

referring to fig. 1-2 again, the bottom of the core frame 300 is fixedly mounted to the bottom of the inner cavity of the housing 100, specifically, the core frame 300 is clamped to the bottom of the inner cavity of the bottom chassis 200, the front sidewall of the core frame 300 is integrally connected to the main partition 310 and the auxiliary partition 320, the front sidewall of the core frame 300 is provided with a main oleophobic hole 330 and an auxiliary oleophobic hole 340, and the width of the core frame 300 is the same as the width of the clamping groove;

referring to fig. 1-3 again, the bottom of the top box 400 is fixedly mounted with the top of the top frame 110, specifically, the top of the top frame 110 is fixedly connected with the top box 400 through bolts, the bottom of the inner cavity of the top box 400 is fixedly connected with a variable frequency controller 410 and a storage battery 460 through screws, the electrical output end of the variable frequency controller 410 is electrically connected with an anticorrosion lead, the electrical output end of the anticorrosion lead is electrically connected with a temperature sensor 420, a turbidity sensor 430 and a liquid level sensor 440, the electrical output end of the variable frequency controller 410 is electrically connected with a wireless transmitter 450 through a lead, the outer circumferential wall of the core frame 300 is wound with coils, the number of the coils is three, the diameters of the three groups of coils are the same, the right side wall of the top box 400 is provided with a grid, and;

when the heat exchanger is used specifically, the bottom frame 200 is firstly placed at a proper position, the shell 100 and the bottom frame 200 are combined, then the core frame 300 with a proper lamination coefficient is selected to be fixed with the clamping groove at the top of the bottom frame 200, the coil needs to be wound again, details are not described here, after the core frame 300 is fixed, the top frame 110 is selected to be in contact with the top of the core frame 300, the clamping groove at the bottom of the top frame 110 is used to be combined with the top of the core frame 300, then the main rod 230 and the auxiliary rod 240 are used to be matched with the top frame 110 and the bottom frame 200 to be fixed, an integral frame is formed, then the top box 400 is matched, the temperature sensor 420, the turbidity sensor 430 and the liquid level sensor 440 are embedded in the shell 100, the sealing cap 120 is opened to embed cooling oil, when in use, the cooling oil circulates in the oleophobic hole of the core frame 300, the heat exchange speed can be increased, and when temperature appears, Turbidity or when revealing the liquid level that leads to and hang down the condition excessively, three different sensors can transmit sensing data for electric connection's variable frequency controller 410, the inside threshold value that predetermines of variable frequency controller 410, and after data exceeded the threshold value, variable frequency controller 410 can cooperate wireless transmitter 450 to carry out the teletransmission of information promptly, has reached the suggestion purpose, effectively carries out quick maintenance, reduces the loss.

Referring to fig. 1 again, in order to increase the combination effect of the top frame 110 and the bottom frame 200, specifically, the top frame 110 and the bottom frame 200 are provided with circular holes, the inner walls of the circumferences of the circular holes are inserted with the main rod 230 and the auxiliary rod 240, and the top and the bottom of the main rod 230 and the auxiliary rod 240 are connected with fastening nuts through threads.

Referring to fig. 2 again, in order to increase the oil-repellent effect, specifically, the number of the main oil-repellent holes 330 and the number of the auxiliary oil-repellent holes 340 are three, and the opening heights of the three main oil-repellent holes 330 are the same as the opening heights of the three auxiliary oil-repellent holes 340.

Referring to fig. 1 again, in order to facilitate the placement of the bottom chassis 200, specifically, the bottom of the bottom chassis 200 is bonded with a main pad 210 and an auxiliary pad 220, and the main pad 210 and the auxiliary pad 220 are made of hard rubber plates.

Referring to fig. 1 again, in order to ensure the storage effect, specifically, the core frame 300 is made of silicon steel, and the lamination factor of the core frame 300 is not higher than the thickness of the inner cavity of the casing 100.

While the invention has been described above with reference to an embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In particular, the various features of the embodiments disclosed herein may be used in any combination, provided that there is no structural conflict, and the combinations are not exhaustively described in this specification merely for the sake of brevity and conservation of resources. Therefore, it is intended that the invention not be limited to the particular embodiments disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.

Claims

1. A combined transformer voltage unit iron core is characterized in that: the energy-saving battery pack comprises a shell (100), a top frame (110), a bottom frame (200), a core frame (300) and a top box (400), wherein the top and the bottom of the shell (100) are fixedly connected with the top frame (110) and the bottom frame (200) through bolts, the core frame (300) is clamped at the bottom of an inner cavity of the bottom frame (200), the top of the top frame (110) is fixedly connected with the top box (400) through bolts, clamping grooves are formed in the top of the top frame (110) and the top of the bottom frame (200), through holes are formed in the top of the top frame (110), sealing caps (120) are in threaded connection with the inner circumferential walls of the through holes, a main partition fence (310) and an auxiliary partition fence (320) are integrally formed in the front side wall of the core frame (300), a main oil dredging hole (330) and an auxiliary oil dredging hole (340) are formed in the front side wall of the core frame (300), a frequency converter controller (410) and a storage battery (460) are fixedly connected with the bottom, the utility model discloses a temperature sensor, including variable frequency controller (410), electric property output end electric connection of variable frequency controller (410) has anticorrosive wire, the electric property output end electric connection of anticorrosive wire has temperature sensor (420), turbidity sensor (430) and level sensor (440), the electric property output end of variable frequency controller (410) has wireless transmitter (450) through wire electric connection, the circumference outer wall winding of core frame (300) has the coil, the quantity of coil is three groups, three groups the diameter of coil is the same.

2. The combined transformer voltage unit core of claim 1, wherein: round holes are formed in the top of the top frame (110) and the top of the bottom frame (200), a main rod (230) and an auxiliary rod (240) are inserted into the inner wall of the circumference of each round hole, and fastening nuts are connected to the top and the bottom of the main rod (230) and the auxiliary rod (240) through threads.

3. The combined transformer voltage unit core of claim 1, wherein: the top of the top frame (110) is connected with a main side frame (130) and an auxiliary side frame (140) through threads, and the main side frame (130) and the auxiliary side frame (140) are made of insulating rubber plates.

4. The combined transformer voltage unit core of claim 1, wherein: the number of the main oil-dredging holes (330) and the number of the auxiliary oil-dredging holes (340) are three, and the opening heights of the three main oil-dredging holes (330) and the three auxiliary oil-dredging holes (340) are uniform.

5. The combined transformer voltage unit core of claim 1, wherein: the right side wall of the top box (400) is provided with a grid, and an inner cavity of the grid is bonded with a separation net.

6. The combined transformer voltage unit core of claim 1, wherein: the bottom of the underframe (200) is bonded with a main pad (210) and an auxiliary pad (220), and the main pad (210) and the auxiliary pad (220) are made of hard rubber plates.

7. The combined transformer voltage unit core of claim 1, wherein: the core frame (300) is made of silicon steel sheets, and the lamination coefficient of the core frame (300) is not higher than the thickness of the inner cavity of the shell (100).

8. The combined transformer voltage unit core of claim 1, wherein: the width of the core frame (300) is the same as the width of the clamping groove.