High-power transformer convenient for installing and positioning copper sheets

Abstract

The utility model relates to a high-power transformer convenient for installing and positioning copper sheets. The high-power transformer comprises a framework, a first magnetic core, a second magnetic core, a first copper sheet, a second copper sheet, a third copper sheet and a fourth copper sheet, wherein the first copper sheet, the second copper sheet, the third copper sheet and the fourth copper sheet sleeve the periphery of the framework and can rotate relative to the central axis of the framework; a locking groove is formed in the peripheral side of the framework and corresponds to each copper sheet mounting position, and the locking groove is provided with an extending opening; all the copper sheets are provided with through holes used for being arranged on the framework in a sleeved mode, and the inner walls of the through holes are inwards provided with limiting protruding parts in a protruding mode. The copper sheet and the framework can be conveniently assembled and positioned, an auxiliary jig is not needed for positioning, a self-adhesive wire cake does not need to be independently processed, a plurality of winding groups can be directly formed by winding, and the processing efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to high -power transformer technical field especially be pointed to a kind of high -power transformer of copper sheet convenient to install positioning. BACKGROUND

[0002] Power equipment mainly includes two major categories of power generation equipment and power supply equipment, and the power generation equipment is mainly power station boiler, steam turbine, gas turbine, water turbine, generator, transformer and the like, and the power supply equipment is mainly various voltage level transmission line, mutual inductor, contactor and the like.

[0003] And power transformer is a kind of stationary electrical equipment, which is used to change the AC voltage and current of a certain value into the voltage and current of another or several values with the same frequency.

[0004] High-power power transformer is a kind of power transformer, which is mainly installed outdoors with supporting equipment such as power pole.

[0005] At present, a kind of high-power power transformer on the market has the following defects in the assembly process: before winding operation, self-adhesive cake needs to be processed separately, and then winding can be carried out, which greatly affects the processing efficiency.

[0006] Therefore, in the utility model patent application, the applicant carefully studies a kind of high -power transformer of copper sheet convenient to install positioning to solve the above problems. CONTENT OF UTILITY MODEL

[0007] The utility model mainly aims at providing a kind of high -power transformer of copper sheet convenient to install positioning, which is convenient for the assembly positioning of copper sheet and framework, does not need to be positioned with auxiliary jig, and does not need to process self-adhesive cake separately, can directly wind to form multiple winding groups, and improve processing efficiency.

[0008] To achieve the above purpose, the utility model adopts the following technical scheme:

[0009] A kind of high -power transformer of copper sheet convenient to install positioning, characterized by: including framework, first magnetic core, second magnetic core and the first copper sheet, second copper sheet, third copper sheet, fourth copper sheet are set to the periphery of framework and can rotate relative to the central axis of framework;

[0010] The framework is hollow cylinder, and the first magnetic core and the second magnetic core are respectively assembled at the front end and the rear end of the framework and both extend into the framework;

[0011] First copper sheet mounting position, second copper sheet mounting position, third copper sheet mounting position and fourth copper sheet mounting position are sequentially arranged on the outer circumferential side of the framework from front to back, and the lock slot is formed on the outer circumferential side of the framework corresponding to each copper sheet mounting position, and the lock slot has an inlet.

[0012] The first copper sheet, the second copper sheet, the third copper sheet and the fourth copper sheet are respectively installed on the corresponding copper sheet installation positions and all the copper sheets are located between the first magnetic core and the second magnetic core, a first winding group is sleeved between the outer circumferential sides between the first copper sheet and the second copper sheet, a second winding group is sleeved between the outer circumferential sides between the second copper sheet and the third copper sheet, and a third winding group is sleeved between the outer circumferential sides between the third copper sheet and the fourth copper sheet;

[0013] Both ends of all the copper sheets are respectively connected with the first pin end and the second pin end, the first pin end and the second pin end are spaced apart and both extend out of the first magnetic core and the second magnetic core, all the copper sheets have through holes for sleeving the skeleton, and the inner wall of the through hole is inwardly convex to form a limiting convex part;

[0014] When the corresponding copper sheet is installed on the corresponding copper sheet installation position, the corresponding copper sheet is rotated by external force to make the limiting convex part slide into and be limited in the locking slot from the entrance;

[0015] When the corresponding copper sheet needs to be disassembled, the corresponding copper sheet is first rotated in the opposite direction by external force to make the limiting convex part disengage from the locking slot, and then the corresponding copper sheet is taken out.

[0016] As a preferred scheme, the first copper sheet, the second copper sheet, the third copper sheet and the fourth copper sheet are all flat copper sheets with a whole spiral structure.

[0017] As a preferred scheme, the first winding group, the second winding group and the third winding group are all wound by one wire.

[0018] As a preferred scheme, the outer circumferential side of the skeleton is convexly provided with a plurality of first side plate parts at intervals along the circumferential direction, the first side plate parts are arranged along the length direction of the skeleton, and the locking slot is formed on the first side plate part.

[0019] As a preferred scheme, the locking slots of all the copper sheet installation positions are formed on the same first side plate part.

[0020] As a preferred scheme, the outer circumferential side of the skeleton is further convexly provided with a plurality of second side plate parts at intervals along the circumferential direction, one second side plate part is arranged between two adjacent first side plate parts, and the second side plate part is arranged along the length direction of the skeleton.

[0021] As a preferred scheme, the front end and the rear end of the second side plate part both extend out of the skeleton to form a positioning convex part, the first magnetic core and the second magnetic core are respectively provided with a positioning recess corresponding to the positioning convex part, the first magnetic core and the second magnetic core are respectively connected with the skeleton, the positioning convex part at the front end of the skeleton is adapted to the positioning recess of the first magnetic core, and the positioning convex part at the rear end of the skeleton is adapted to the positioning recess of the second magnetic core.

[0022] The utility model discloses an obvious advantage and beneficial effect compared with prior art, specifically speaking: its mainly through the corresponding copper sheet is set on the corresponding installation position, and the limiting convex part of corresponding copper sheet will slide into and be located in the corresponding lock groove in the rotation process, and the assembly positioning of copper sheet and framework is convenient, and positioning is carried out without auxiliary jig, and, without separately processing self -adhesion line cake, can directly wind and form multiple winding groups, improve processing efficiency.

[0023] Secondly, through the cooperation of the positioning convex part and the positioning groove, the framework is assembled and positioned between the first magnetic core and the second magnetic core, the assembly efficiency is improved, and the framework does not rotate and deviate after being assembled with the first magnetic core and the second magnetic core.

[0024] In order to more clearly set forth the structural features and functions of the utility model, specific embodiments will be combined with the drawings to be described in detail. BRIEF DESCRIPTION OF DRAWINGS

[0025] Fig. 1 is the explosion structure schematic diagram of the embodiment of the utility model;

[0026] Fig. 2 is the framework structure schematic diagram of the embodiment of the utility model;

[0027] Fig. 3 is another angle structure schematic diagram of the framework of the embodiment of the utility model.

[0028] EXPLANATION OF DRAWINGS:

[0029] 10, framework

[0030] 11, first side plate part

[0031] 111, lock groove 112, inlet

[0032] 12, second side plate part

[0033] 121, positioning convex part 122, auxiliary lock groove

[0034] 123, auxiliary inlet

[0035] 201, positioning groove

[0036] 21, first magnetic core 22, second magnetic core

[0037] 31, first copper sheet 32, second copper sheet

[0038] 33, third copper sheet 34, fourth copper sheet

[0039] 35, first pin end 36, second pin end

[0040] 37, through hole

[0041] 371, limiting protrusion 372, auxiliary limiting protrusion. DETAILED DESCRIPTION

[0042] The utility model will be further described below in combination with the drawings and specific embodiments.

[0043] As Figs. 1 to 3 shown, a large power transformer convenient to install and position copper sheet, including framework 10, first magnetic core 21, second magnetic core 22 and set in the periphery of framework 10 and can rotate first copper sheet 31, second copper sheet 32, third copper sheet 33, fourth copper sheet 34 of the central axis of framework 10;

[0044] The framework 10 is a hollow cylinder, the first magnetic core 21 and second magnetic core 22 are assembled at the front and rear ends of framework 10 respectively and both extend into framework 10;

[0045] The outer periphery of framework 10 is sequentially provided with first copper sheet mounting position, second copper sheet mounting position, third copper sheet mounting position and fourth copper sheet mounting position from front to back, and the outer periphery of framework 10 is formed with a locking groove 111 corresponding to each copper sheet mounting position, and the locking groove 111 has an inlet 112. In the embodiment, the locking groove 111 on each copper sheet mounting position is provided with a plurality of locking grooves 111, and the plurality of locking grooves 111 are arranged along the circumferential direction of the outer periphery of framework 10. Preferably, two locking grooves 111 are formed on each copper sheet mounting position.

[0046] In the embodiment, the outer periphery of framework 10 is provided with a plurality of first side plate portions 11 along the circumferential direction thereof, the first side plate portions 11 extend along the length direction of framework 10, and the locking grooves 111 are formed on the first side plate portions 11. The locking grooves 111 of all copper sheet mounting positions are formed on the same first side plate portion 11, and one locking groove 111 of the corresponding copper sheet mounting position is arranged on each first side plate portion 11.

[0047] In the embodiment, the outer periphery of framework 10 is further provided with a plurality of second side plate portions 12 along the circumferential direction thereof, one second side plate portion 12 is arranged between two adjacent first side plate portions 11, and the second side plate portions 12 extend along the length direction of framework 10.

[0048] The front and rear ends of second side plate portion 12 extend out of framework 10 to form a positioning protrusion 121, the first magnetic core 21 and second magnetic core 22 are respectively provided with a positioning groove 201 corresponding to the positioning protrusion 121, the first magnetic core 21 and second magnetic core 22 are respectively connected to framework 10, the positioning protrusion 121 at the front end of framework 10 is adapted to the positioning groove 201 of first magnetic core 21, and the positioning protrusion 121 at the rear end of framework 10 is adapted to the positioning groove 201 of second magnetic core 22.

[0049] The first copper sheet 31, the second copper sheet 32, the third copper sheet 33 and the fourth copper sheet 34 are respectively installed on the corresponding copper sheet installation positions and all the copper sheets are located between the first magnetic core 21 and the second magnetic core 22. In the embodiment, the first copper sheet 31, the second copper sheet 32, the third copper sheet 33 and the fourth copper sheet 34 have the same structure.

[0050] The first winding group is sleeved between the outer circumferential sides of the first copper sheet 31 and the second copper sheet 32, the second winding group is sleeved between the outer circumferential sides of the second copper sheet 32 and the third copper sheet 33, and the third winding group is sleeved between the outer circumferential sides of the third copper sheet 33 and the fourth copper sheet 34; in the embodiment, the first winding group, the second winding group and the third winding group are wound by one wire. The first winding group, the second winding group and the third winding group are all wound on the periphery of the first side plate part 11 and the second side plate part 12.

[0051] Both ends of all the copper sheets are respectively connected with the first pin end 35 and the second pin end 36, the first pin end 35 and the second pin end 36 are spaced apart and both extend out of the first magnetic core 21 and the second magnetic core 22, and the first pin end 35 and the second pin end 36 both face the same direction. All the copper sheets have a through hole 37 for sleeving the skeleton 10, and a limiting protrusion 371 is protruded inwardly on the inner wall of the through hole 37;

[0052] In the embodiment, the first copper sheet 31, the second copper sheet 32, the third copper sheet 33 and the fourth copper sheet 34 are all flat copper sheets with a spiral structure as a whole. Preferably, the first copper sheet 31, the second copper sheet 32, the third copper sheet 33 and the fourth copper sheet 34 are all flat copper sheets with a multi-turn spiral structure as a whole.

[0053] When the corresponding copper sheet is installed on the corresponding copper sheet installation position, the corresponding copper sheet is rotated by external force to make the limiting protrusion 371 slide into and be limited in the locking groove 111 from the extending opening 112;

[0054] When the corresponding copper sheet needs to be disassembled, the corresponding copper sheet is rotated in the opposite direction by external force to make the limiting protrusion 371 disengage from the locking groove 111, and then the corresponding copper sheet is taken out.

[0055] In the embodiment, the second side plate part 12 is sequentially and spaced apart by four auxiliary locking grooves 122 from front to back, and each auxiliary locking groove 122 is located on a corresponding copper sheet installation position. Each auxiliary locking groove 122 has an auxiliary extending opening 123, and the inner wall of the through hole 37 protrudes inwardly to have an auxiliary limiting protrusion 372 adapted to each auxiliary locking groove 122.

[0056] Preferably, the first side plate part 11 is provided with two, the second side plate part 12 is provided with two, the four of the two first side plate parts 11 and the two second side plate parts 12 are cross-distributed, the two first side plate parts 11 are symmetrically arranged left and right, the two second side plate parts 12 are symmetrically arranged up and down, and each first side plate part 11 is connected to the two second side plate parts 12 respectively. Correspondingly, the inner wall of the through hole 37 is inwardly convexly provided with two limiting protrusions 371 and two auxiliary limiting protrusions 372, the four of the two limiting protrusions 371 and the two auxiliary limiting protrusions 372 are cross-distributed, the two limiting protrusions 371 are symmetrically arranged left and right, and the two auxiliary limiting protrusions 372 are symmetrically arranged up and down.

[0057] The orientations of the two extension entrances 112 and the two auxiliary extension entrances 123 on the same copper sheet mounting position are in the same clockwise direction.

[0058] Next, the assembly process of the embodiment (with all extension entrances 112 and all auxiliary extension entrances 123 in the counterclockwise direction) will be described in detail:

[0059] The mounting steps of the copper sheets: first, the first copper sheet 31 is sleeved on the first copper sheet mounting position, and then the first copper sheet 31 is rotated in the counterclockwise direction by external force to make each limiting protrusion 371 and auxiliary limiting protrusion 372 respectively slide into and be limited in the corresponding locking groove 111 and the corresponding auxiliary locking groove 122 from the corresponding extension entrance 112 and the auxiliary corresponding extension entrance 112;

[0060] In turn, the second copper sheet 32, the third copper sheet 33 and the third copper sheet 33 are respectively mounted.

[0061] The mounting steps of the first winding group: one end of the wire is passed between the first pin end 35 and the second pin end 36 of the first copper sheet 31 and led out as a first pin, and then the other end of the wire is wound around the outer periphery of the skeleton 10 between the first copper sheet 31 and the second copper sheet 32 for multiple turns to form a first winding group.

[0062] The mounting steps of the second winding group: the other end of the wire is then passed between the first pin end 35 and the second pin end 36 of the second copper sheet 32 into the second copper sheet 32 and the third copper sheet 33 and continues to be wound around the outer periphery of the skeleton 10 between the second copper sheet 32 and the third copper sheet 33 for multiple turns to form a second winding group.

[0063] The mounting steps of the third winding group: the other end of the wire is then passed between the first pin end 35 and the second pin end 36 of the third copper sheet 33 into the third copper sheet 33 and the fourth copper sheet 34 and continues to be wound around the outer periphery of the skeleton 10 between the third copper sheet 33 and the fourth copper sheet 34 for multiple turns to form a third winding group.

[0064] Finally, the other end of the wire is passed between the first pin 35 and the second pin 36 of the fourth copper plate 34 and led out as the second pin.

[0065] Installation steps of the magnetic core: Install the first magnetic core 21 and the second magnetic core 22 on the front and rear sides of the frame 10 respectively, with the first copper sheet 31 abutting against the first magnetic core 21 and the second copper sheet 32 ​​abutting against the second magnetic core 22.

[0066] The key design feature of this utility model is that, after the corresponding copper sheet is fitted onto the corresponding mounting position, the limiting protrusion of the corresponding copper sheet will slide into the corresponding insertion port and be limited in the corresponding locking groove during the rotation process, which facilitates the assembly and positioning of the copper sheet and the frame. No auxiliary fixture is required for positioning. Moreover, there is no need to process the self-adhesive wire cake separately. Multiple winding groups can be directly wound to form a winding group, which improves the processing efficiency.

[0067] Secondly, by using the positioning protrusion and positioning groove, the skeleton is positioned and assembled with the first and second magnetic cores respectively, which improves the assembly efficiency and ensures that the skeleton will not rotate or shift after being assembled with the first and second magnetic cores respectively.

[0068] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the technical scope of the present utility model. Therefore, any minor modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A high power transformer with copper sheet installation and positioning facilitation, characterized in that: It includes a frame, a first magnetic core, a second magnetic core, and a first copper sheet, a second copper sheet, a third copper sheet, and a fourth copper sheet that are sleeved around the frame and can rotate relative to the central axis of the frame; The frame is a hollow cylinder, and the first magnetic core and the second magnetic core are respectively assembled at the front and rear ends of the frame and both extend into the frame. The outer periphery of the frame is provided with a first copper sheet mounting position, a second copper sheet mounting position, a third copper sheet mounting position and a fourth copper sheet mounting position arranged sequentially from front to back. A locking groove is formed on the outer periphery of the frame corresponding to each copper sheet mounting position, and the locking groove has an extension inlet. The first copper sheet, the second copper sheet, the third copper sheet, and the fourth copper sheet are respectively installed on their respective copper sheet mounting positions, and all copper sheets are located between the first magnetic core and the second magnetic core. The frame is fitted with a first winding group between the outer periphery of the first copper sheet and the second copper sheet, the frame is fitted with a second winding group between the outer periphery of the second copper sheet and the third copper sheet, and the frame is fitted with a third winding group between the outer periphery of the third copper sheet and the fourth copper sheet. All copper sheets are connected to a first pin end and a second pin end at their two ends respectively. The first pin end and the second pin end are spaced apart and both extend out of the first magnetic core and the second magnetic core. All copper sheets have through holes for fitting onto the skeleton. The inner wall of the through hole is provided with a limiting protrusion. When the corresponding copper sheet is installed in the corresponding copper sheet mounting position, the corresponding copper sheet is rotated by external force to make the limiting protrusion slide into the extension port and be limited in the locking groove; When it is necessary to remove the corresponding copper piece, first use external force to rotate the corresponding copper piece in the opposite direction to make the limiting protrusion disengage from the locking groove, and then remove the corresponding copper piece.

2. The large power transformer with facilitated installation and positioning of copper sheets according to claim 1, characterized in that: The first copper sheet, the second copper sheet, the third copper sheet, and the fourth copper sheet are all flat copper sheets with an overall spiral structure.

3. The large power transformer with facilitated installation and positioning of copper sheets according to claim 1, characterized in that: The first winding group, the second winding group, and the third winding group are all formed by winding a single wire.

4. The large power transformer with facilitated installation and positioning of copper sheets according to claim 1, characterized in that: The outer periphery of the skeleton is provided with a plurality of first side plate portions protruding along its circumferential spacing. The first side plate portions extend along the length direction of the skeleton, and locking grooves are formed on the first side plate portions.

5. The large power transformer with facilitated positioning of copper sheets of claim 4, characterized in that: All the locking grooves for the copper sheet mounting positions are formed on the same first side plate.

6. The large power transformer of claim 5, wherein: The outer periphery of the skeleton is also provided with a plurality of second side plates protruding along its circumferential spacing, and a second side plate is provided between two adjacent first side plates, the second side plates extending along the length direction of the skeleton.

7. The high power transformer of claim 6, wherein: The front and rear ends of the second side plate extend out of the skeleton to form positioning protrusions. The first magnetic core and the second magnetic core are respectively provided with positioning grooves corresponding to the positioning protrusions. The first magnetic core and the second magnetic core are respectively connected to the skeleton. The positioning protrusion at the front end of the skeleton is adapted to the positioning groove of the first magnetic core, and the positioning protrusion at the rear end of the skeleton is adapted to the positioning groove of the second magnetic core.

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