CN104681253B - Switch transformer and Switching Power Supply - Google Patents

Switch transformer and Switching Power Supply Download PDF

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Publication number
CN104681253B
CN104681253B CN201510096673.6A CN201510096673A CN104681253B CN 104681253 B CN104681253 B CN 104681253B CN 201510096673 A CN201510096673 A CN 201510096673A CN 104681253 B CN104681253 B CN 104681253B
Authority
CN
China
Prior art keywords
coil
stitch
circuit board
space bar
inductor loop
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201510096673.6A
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Chinese (zh)
Other versions
CN104681253A (en
Inventor
臧海娟
孙磊
汪爱军
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tianjin Tongguang Group Zhenhai Technology Co ltd
Original Assignee
Jiangsu University of Technology
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Jiangsu University of Technology filed Critical Jiangsu University of Technology
Priority to CN201710474881.4A priority Critical patent/CN107221419B/en
Priority to CN201710474385.9A priority patent/CN107481838B/en
Priority to CN201510096673.6A priority patent/CN104681253B/en
Priority to CN201710474587.3A priority patent/CN107221418B/en
Publication of CN104681253A publication Critical patent/CN104681253A/en
Application granted granted Critical
Publication of CN104681253B publication Critical patent/CN104681253B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00Details of transformers or inductances, in general
    • H01F27/28Coils; Windings; Conductive connections
    • H01F27/30Fastening or clamping coils, windings, or parts thereof together; Fastening or mounting coils or windings on core, casing, or other support
    • H01F27/306Fastening or mounting coils or windings on core, casing or other support
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F17/00Fixed inductances of the signal type 
    • H01F17/04Fixed inductances of the signal type  with magnetic core
    • H01F17/06Fixed inductances of the signal type  with magnetic core with core substantially closed in itself, e.g. toroid
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00Details of transformers or inductances, in general
    • H01F27/28Coils; Windings; Conductive connections
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00Details of transformers or inductances, in general
    • H01F27/28Coils; Windings; Conductive connections
    • H01F27/2823Wires
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00Details of transformers or inductances, in general
    • H01F27/28Coils; Windings; Conductive connections
    • H01F27/2823Wires
    • H01F27/2828Construction of conductive connections, of leads
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00Details of transformers or inductances, in general
    • H01F27/28Coils; Windings; Conductive connections
    • H01F27/2876Cooling
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00Details of transformers or inductances, in general
    • H01F27/28Coils; Windings; Conductive connections
    • H01F27/29Terminals; Tapping arrangements for signal inductances
    • H01F27/292Surface mounted devices
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00Details of transformers or inductances, in general
    • H01F27/28Coils; Windings; Conductive connections
    • H01F27/32Insulating of coils, windings, or parts thereof
    • H01F27/324Insulation between coil and core, between different winding sections, around the coil; Other insulation structures
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02MAPPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00Details of apparatus for conversion

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Coils Or Transformers For Communication (AREA)
  • Coils Of Transformers For General Uses (AREA)

Abstract

The present invention relates to a kind of switch transformer and Switching Power Supply, Switching Power Supply including shell, circuit board and install on circuit boards including all kinds of electronic components including switch transformer.Circuit board is arranged in shell.The switch transformer includes the switch transformer component with primary coil, magnetic core, secondary coil and fixed adhesive plaster.Switch transformer component with primary coil includes skeleton, primary coil, degaussing coil, boost voltage coil and stitch.The circle of quantity 1 to 8 of secondary coil 8,1 to 3 inductor loop conductor is included per circle secondary coil.Inductor loop conductor is integrally in inverted U-shaped;The stitch of switch transformer is electrically connected with circuit board, and 2 connection ends of all inductor loop conductors of the secondary coil of switch transformer with circuit board by way of slicker solder is welded through electrically connecting after the corresponding via of circuit board.Each circle secondary coil completes loop and connects by circuit board.The manufacturing process of switch transformer is simple, radiating effect is preferable.

Description

Switch transformer and Switching Power Supply
Technical field
The present invention relates to a kind of Switching Power Supply, more particularly to a kind of Switching Power Supply equipped with high frequency switch transformer.
Background technology
With the high speed development of Power Electronic Technique, the work of power electronic equipment and people, the relation of life are increasingly close Cut, and electronic equipment all be unable to do without reliable power supply, and Switching Power Supply is realized comprehensively into the computer power supply eighties, takes the lead in The power supply for completing computer is regenerated, and various electronics, electric equipment field, programme-controlled exchange are subsequently entered into the Switching Power Supply nineties Machine, communication, electron detection device power supply, control device power supply etc. have all been widely used Switching Power Supply, more promote switch Power technology is developed rapidly.
Longitudinal casing and one piece of the usual Switching Power Supply including an aluminium alloy system or steel are fixed in shell Printed circuit board (PCB), is additionally provided with the heat abstractors such as fin or fan between shell and circuit board, by fasteners such as screws and The screw that the shell of Switching Power Supply is provided with can fix on an electronic device Switching Power Supply.High frequency is installed on circuit board to open Close transformer, the electronic component such as inductance, high frequency switch transformer mainly include skeleton, through skeleton magnetic core and be arranged on Armature winding, secondary windings on skeleton, armature winding and secondary windings are wrapped on skeleton in form of a coil, secondary coil It is to enclose winding with the copper cash one of whole circle to complete loop, primary coil and secondary coil are radial distributions, such whole The coil for enclosing winding causes that caloric value is larger, and multiple-turns wound causes that the radiating effect of electronic component is poor, in addition to just In the winding of coil, the diameter of coil must be designed to smaller so that the toughness of coil is preferably completely wound, and coil is straight The less words in footpath are accomplished by increasing the number of turn of coil, then the operation that the increase of the number of turn of coil allows for winding equally increases, The processing technology of the switch transformer is too complicated, manufactures manpower high cost, and the appearance of certain position of coil is for example old , it is necessary to change whole switch transformer during the problem of change fracture etc..In addition, the secondary coil of whole circle winding is needed in insulating Design More insulating tape is used, cost is also higher.For example in the market extensively sale PQ35 switch transformers be exist it is above-mentioned Each shortcoming.
The content of the invention
The technical problem to be solved in the present invention be to provide a kind of simple structure and the relatively low switch transformer of manufacturing cost and The radiating effect of Switching Power Supply, the switch transformer and Switching Power Supply is preferable and is easy to maintenance.
Realize that one of technical scheme of the object of the invention is to provide a kind of skeleton of switch transformer, including it is centrally located Principal part, be symmetricly set on principal part the left and right sides magnetic core limiting section and be arranged on corresponding magnetic core limiting section lower section pin Pin connecting portion.The center of principal part is provided with the magnetic loop hole for installing magnetic core of left and right insertion.Magnetic core limiting section and principal part or so Insertion, and the shape in magnetic core limiting section and magnetic loop hole and the shape of magnetic core are corresponding.The periphery of principal part is sequentially provided with auxiliary vertically Pressure-wire ring recess, left primary coil groove, left secondary wire ring recess, degaussing coil groove, right secondary wire ring recess and right primary coil groove are helped, The peripheral shape of left secondary wire ring recess and right secondary wire ring recess takes the shape of the letter U.Stitch connecting portion be provided with that Open Side Down for installing The stitch hole of stitch.
Further, the magnetic core limiting section positioned at the left side of principal part includes that left limit plate, upper left limiting section and lower-left are spacing Portion, the magnetic core limiting section positioned at the right side of principal part includes right limit plate, upper right limiting section and bottom right limiting section.Left limit plate, the right side Limiting plate is equipped with the through hole with the insertion of magnetic loop hole, and left limit plate and right limit plate are by being provided with the circular slab of center through hole Symmetrically remove the plate portion formed after a big cambered plate of grade down, upper left limiting section, lower-left limiting section are protruded from symmetrical above and belowly Left limit plate, upper right limiting section, bottom right limiting section protrude from right limit plate, upper left limiting section, upper right limiting section symmetrical above and belowly In isosceles triangle shape, lower-left limiting section, bottom right limiting section are in isosceles triangle shape.Left limit plate, upper left limiting section and a left side The shape that lower limit portion is formed is corresponding with the magnetic core of switch transformer, and right limit plate, upper right limiting section and bottom right limiting section are formed Shape it is corresponding with the magnetic core of switch transformer.
Further, the skeleton of described switch transformer also includes the first space bar, the second space bar, the 3rd interval Plate, the 4th space bar, the 5th space bar and insulation board.The periphery left part of principal part be provided with a ring and lower ending opening first interval Plate, first space bar and principal part, left limit plate shape are into boost voltage coil groove.Principal part periphery middle part be provided with a ring and Second space bar of lower ending opening, the 3rd space bar, the 4th space bar and the 5th space bar, the second space bar, the 3rd space bar, 4th space bar and the 5th space bar are spacedly distributed from left to right, so that the second space bar is formed with principal part, the first space bar Left primary coil groove, the second space bar and principal part, the 3rd space bar form left secondary wire ring recess, the 4th space bar and principal part, the Three space bars form degaussing coil groove, and the 4th space bar forms right secondary wire ring recess, the 5th space bar with principal part, the 5th space bar With principal part, right limit plate shape into right primary coil groove.Insulation board has 4, and insulation board is separately positioned on left secondary wire ring recess and the right side Both sides before and after the bottom of secondary wire ring recess, so that left secondary wire ring recess and right secondary wire ring recess take the shape of the letter U.
Further, stitch connecting portion is included positioned at the left stitch connecting portion of the lower section of lower-left limiting section and positioned at lower limit on the right The right stitch connecting portion of the lower section in position portion.The lower end of left stitch connecting portion is provided with 5 stitch holes, including 2 primary coil stitch Hole and 3 auxiliary and degaussing coil stitch hole, are spacedly distributed between 5 stitch holes, and 4 left sides are provided between 5 stitch holes Coil gathering sill.The lower end of right stitch connecting portion is provided with the standby stitch hole of 3 for being spacedly distributed.
Realize that the two of the technical scheme of the object of the invention is to provide a kind of switch transformer component with primary coil, wrap Include skeleton, primary coil, degaussing coil, boost voltage coil and stitch.
Skeleton is including centrally located principal part, the magnetic core limiting section of the left and right sides for being symmetricly set on principal part and is arranged on The stitch connecting portion of the lower section of corresponding magnetic core limiting section.The magnetic for installing magnetic core that the center of principal part is provided with left and right insertion is returned Lu Kong.Magnetic core limiting section and principal part or so insertion, and the shape in magnetic core limiting section and magnetic loop hole and the shape of magnetic core are corresponding.It is main The periphery in portion is sequentially provided with boost voltage coil groove, left primary coil groove, left secondary wire ring recess, degaussing coil groove, the right side vertically The peripheral shape of secondary wire ring recess and right primary coil groove, left secondary wire ring recess and right secondary wire ring recess takes the shape of the letter U.Stitch connecting portion Including the left stitch connecting portion positioned at the lower section of lower-left limiting section and the right stitch connecting portion positioned at the lower section of bottom right limiting section.It is left The lower end of stitch connecting portion is provided with 5 stitch holes, including 2 primary coil stitch holes and 3 auxiliary and degaussing coil stitch Hole, is spacedly distributed between 5 stitch holes, and 4 left coil gathering sills are provided between 5 stitch holes.Under right stitch connecting portion End is provided with 3 standby stitch holes being spacedly distributed.
Stitch is respectively fixedly disposed at 2 primary coil stitch holes, 3 auxiliary of the left stitch connecting portion of skeleton by 8 And in 3 standby stitch holes of degaussing coil stitch hole and right stitch connecting portion.
Primary coil, degaussing coil, boost voltage coil use conductor wire.Primary coil is wrapped in the left primary of skeleton In coil groove and right primary coil groove, the initiating terminal and clearing end of primary coil respectively with 2 of left stitch connecting portion primary lines Stitch in circle stitch hole is welded to connect.Degaussing coil is wrapped in degaussing coil groove, and boost voltage coil is wrapped in auxiliary electricity In line ball ring recess, the initiating terminal or clearing end of degaussing coil and boost voltage coil share the degaussing coil pin of left stitch connecting portion 1 stitch in the 17-1-2 of pin hole, so that the initiating terminal or clearing end of degaussing coil and boost voltage coil are connected with left stitch Same 1 stitch in the degaussing coil stitch hole 17-1-2 in portion is welded to connect, the other end of degaussing coil and boost voltage coil It is welded to connect with the stitch in remaining 2 degaussing coil stitch hole 17-1-2 of left stitch connecting portion respectively.Primary coil, go The equal insulation processing in the cross-contact position of magnetic coil and boost voltage coil.
Realize that the three of the technical scheme of the object of the invention is to provide a kind of switch transformer, including opening with primary coil Close transformer device, magnetic core, secondary coil and fixed adhesive plaster.
Switch transformer component with primary coil include skeleton, primary coil, degaussing coil, boost voltage coil with And stitch.
Skeleton is including centrally located principal part, the magnetic core limiting section of the left and right sides for being symmetricly set on principal part and is arranged on The stitch connecting portion of the lower section of corresponding magnetic core limiting section.The magnetic for installing magnetic core that the center of principal part is provided with left and right insertion is returned Lu Kong.Magnetic core limiting section and principal part or so insertion, and the shape in magnetic core limiting section and magnetic loop hole and the shape of magnetic core are corresponding.It is main The periphery in portion is sequentially provided with boost voltage coil groove, left primary coil groove, left secondary wire ring recess, degaussing coil groove, the right side vertically The peripheral shape of secondary wire ring recess and right primary coil groove, left secondary wire ring recess and right secondary wire ring recess takes the shape of the letter U.Stitch connecting portion Including the left stitch connecting portion positioned at the lower section of lower-left limiting section and the right stitch connecting portion positioned at the lower section of bottom right limiting section.It is left The lower end of stitch connecting portion is provided with 5 stitch holes, including 2 primary coil stitch holes and 3 auxiliary and degaussing coil stitch Hole, is spacedly distributed between 5 stitch holes, and 4 left coil gathering sills are provided between 5 stitch holes.Under right stitch connecting portion End is provided with 3 standby stitch holes being spacedly distributed.
Stitch is respectively fixedly disposed at 2 primary coil stitch holes, 3 auxiliary of the left stitch connecting portion of skeleton by 8 And in 3 standby stitch holes of degaussing coil stitch hole and right stitch connecting portion.
Primary coil, degaussing coil, boost voltage coil use conductor wire.Primary coil is wrapped in the left primary of skeleton In coil groove and right primary coil groove, the initiating terminal and clearing end of primary coil respectively with 2 of left stitch connecting portion primary lines Stitch in circle stitch hole is welded to connect.Degaussing coil is wrapped in degaussing coil groove, and boost voltage coil is wrapped in auxiliary electricity In line ball ring recess, the initiating terminal or clearing end of degaussing coil and boost voltage coil share the degaussing coil pin of left stitch connecting portion 1 stitch in the 17-1-2 of pin hole, so that the initiating terminal or clearing end of degaussing coil and boost voltage coil are connected with left stitch Same 1 stitch in the degaussing coil stitch hole 17-1-2 in portion is welded to connect, the other end of degaussing coil and boost voltage coil It is welded to connect with the stitch in remaining 2 degaussing coil stitch hole 17-1-2 of left stitch connecting portion respectively.Primary coil, go The equal insulation processing in the cross-contact position of magnetic coil and boost voltage coil.
The quantity of the magnetic core is 2, and magnetic core makees paint-dipping process treatment, the shape of the head of magnetic core and the left end of skeleton or The shape correspondence of right-hand member, the shape of the core of magnetic core is corresponding with the magnetic loop hole of skeleton.2 magnetic cores are respectively from the left and right two of skeleton Hold by its core insertion magnetic loop hole until the head of 2 magnetic cores is respectively embedded into the left side and right side of skeleton so that Magnetic core is spacing up and down to be arranged on skeleton, and forms magnetic loop.2 magnetic cores are fixed by from circumferential winding using fixed adhesive plaster Connection, so as to magnetic core or so is installed on skeleton.
The circle of quantity 1 to 8 of secondary coil 8,1 to 3 inductor loop conductor is included per circle secondary coil.Inductor loop conductor Overall to be made of copper material or aluminum core copper wire or aluminum in inverted U-shaped, the copper material uses the preferable red copper of electric conductivity, inductance The circular in cross-section or kidney ellipsoid of return conductors, its area of section are 0.5 to 10mm2.Inverted U-shaped inductor loop conductor has 2 connection ends.Openings of sizes at 2 connection ends of inductor loop conductor is corresponding with left secondary wire ring recess, inductor loop conductor Height it is corresponding with the height of left primary coil groove.2 circle secondary coils are separately positioned on left secondary wire ring recess and right secondary coil In groove, all inductor loop conductors are open through after the principal part of skeleton by it stretch out left secondary coil by its 2 connection ends respectively Groove or right secondary wire ring recess, the connection end of inductor loop conductor are the initiating terminal and clearing end of secondary coil.
Realize that the four of the technical scheme of the object of the invention is to provide a kind of Switching Power Supply, including shell, circuit board and peace Dress on circuit boards including all kinds of electronic components for Switching Power Supply including switch transformer.Circuit boards have For the conductive Copper Foil of whole circuit.Circuit board is arranged in shell.
The switch transformer includes the switch transformer component with primary coil, magnetic core, secondary coil and fixation Adhesive plaster.
Switch transformer component with primary coil include skeleton, primary coil, degaussing coil, boost voltage coil with And stitch.
Skeleton is including centrally located principal part, the magnetic core limiting section of the left and right sides for being symmetricly set on principal part and is arranged on The stitch connecting portion of the lower section of corresponding magnetic core limiting section.The magnetic for installing magnetic core that the center of principal part is provided with left and right insertion is returned Lu Kong.Magnetic core limiting section and principal part or so insertion, and the shape in magnetic core limiting section and magnetic loop hole and the shape of magnetic core are corresponding.It is main The periphery in portion is sequentially provided with boost voltage coil groove, left primary coil groove, left secondary wire ring recess, degaussing coil groove, the right side vertically The peripheral shape of secondary wire ring recess and right primary coil groove, left secondary wire ring recess and right secondary wire ring recess takes the shape of the letter U.Stitch connecting portion Including the left stitch connecting portion positioned at the lower section of lower-left limiting section and the right stitch connecting portion positioned at the lower section of bottom right limiting section.It is left The lower end of stitch connecting portion is provided with 5 stitch holes, including 2 primary coil stitch holes and 3 auxiliary and degaussing coil stitch Hole, is spacedly distributed between 5 stitch holes, and 4 left coil gathering sills are provided between 5 stitch holes.Under right stitch connecting portion End is provided with 3 standby stitch holes being spacedly distributed.
Stitch is respectively fixedly disposed at 2 primary coil stitch holes, 3 auxiliary of the left stitch connecting portion of skeleton by 8 And in 3 standby stitch holes of degaussing coil stitch hole and right stitch connecting portion.
Primary coil, degaussing coil, boost voltage coil use conductor wire.Primary coil is wrapped in the left primary of skeleton In coil groove and right primary coil groove, the initiating terminal and clearing end of primary coil respectively with 2 of left stitch connecting portion primary lines Stitch in circle stitch hole is welded to connect.Degaussing coil is wrapped in degaussing coil groove, and boost voltage coil is wrapped in auxiliary electricity In line ball ring recess, the initiating terminal or clearing end of degaussing coil and boost voltage coil share the degaussing coil pin of left stitch connecting portion 1 stitch in the 17-1-2 of pin hole, so that the initiating terminal or clearing end of degaussing coil and boost voltage coil are connected with left stitch Same 1 stitch in the degaussing coil stitch hole 17-1-2 in portion is welded to connect, the other end of degaussing coil and boost voltage coil It is welded to connect with the stitch in remaining 2 degaussing coil stitch hole 17-1-2 of left stitch connecting portion respectively.Primary coil, go The equal insulation processing in the cross-contact position of magnetic coil and boost voltage coil.
The quantity of the magnetic core is 2, and magnetic core makees paint-dipping process treatment, the shape of the head of magnetic core and the left end of skeleton or The shape correspondence of right-hand member, the shape of the core of magnetic core is corresponding with the magnetic loop hole of skeleton.2 magnetic cores are respectively from the left and right two of skeleton Hold by its core insertion magnetic loop hole until the head of 2 magnetic cores is respectively embedded into the left side and right side of skeleton so that Magnetic core is spacing up and down to be arranged on skeleton, and forms magnetic loop.2 magnetic cores are fixed by from circumferential winding using fixed adhesive plaster Connection, so as to magnetic core or so is installed on skeleton.
The circle of quantity 1 to 8 of secondary coil 8,1 to 3 inductor loop conductor is included per circle secondary coil.Inductor loop conductor Overall to be made of copper material or aluminum core copper wire or aluminum in inverted U-shaped, the copper material uses the preferable red copper of electric conductivity, inductance The circular in cross-section or kidney ellipsoid of return conductors, its area of section are 0.5 to 10mm2.Inverted U-shaped inductor loop conductor has 2 connection ends.Openings of sizes at 2 connection ends of inductor loop conductor is corresponding with left secondary wire ring recess, inductor loop conductor Height it is corresponding with the height of left primary coil groove.2 circle secondary coils are separately positioned on left secondary wire ring recess and right secondary coil In groove, all inductor loop conductors are open through after the principal part of skeleton by it stretch out left secondary coil by its 2 connection ends respectively Groove or right secondary wire ring recess, the connection end of inductor loop conductor are the initiating terminal and clearing end of secondary coil.
8 stitch of switch transformer through circuit board corresponding via after slicker solder weld by way of with circuit board electricity Connection, after 2 connection ends of all inductor loop conductors of the secondary coil of switch transformer pass through the corresponding via of circuit board Electrically connected with circuit board by way of slicker solder is welded, so as to switch transformer be fixedly connected on circuit boards.It is secondary per circle It is connected in parallel by circuit board between 1 to 3 inductor loop conductor included by coil, circuit is passed through between each circle secondary coil Plate is connected in series, so as to each circle secondary coil completes loop by circuit board connect.
Further, installation electronic component on circuit boards also includes inductance.Inductance include magnet ring and 1 to 25 circle inductance coils, the magnet ring surface is covered with insulating barrier.Include 1 to 3 second inductor loop conductor per circle inductance coil.The Two inductor loop conductors are made integrally in inverted U-shaped of copper material or aluminum core copper wire or aluminum, the copper material using electric conductivity compared with Good red copper, the circular in cross-section or kidney ellipsoid of the second inductor loop conductor, its area of section are 0.5 to 10mm2.It is inverted U-shaped The second inductor loop conductor have 2 connection ends.Openings of sizes and magnet ring at 2 connection ends of the second inductor loop conductor Ring footpath correspondence, the height of the second inductor loop conductor is corresponding with the height of magnet ring.All second inductor loop conductors respectively by It is open through after the ring portion of magnet ring and magnet ring tight fit connection, 2 connections of the second inductor loop conductor being enclosed within magnet ring Hold and electrically connected with circuit board by way of slicker solder is welded through after the corresponding via of circuit board, and the second inductor loop conductor is solid It is fixed to connect on circuit boards, so as to magnet ring is also spacing in the presence of the second inductor loop conductor set on circuit boards.Per circle It is connected in parallel by circuit board between 1 to 3 second inductor loop conductor included by inductance coil, between each circle inductance coil It is connected in series by circuit board, so as to each circle inductance coil completes loop by circuit board connect, each circle inductance coil is around magnetic The equiangularly spaced distribution in center of ring.
Further described Switching Power Supply also includes auxiliary copper cash.Before and after auxiliary copper cash for increasing electric current is arranged on Between 2 connected corresponding connection ends of the second inductor loop conductor or the corresponding of front and rear 2 connected inductor loop conductors connects Connect between holding, it is described to aid in copper cash and pass through welding between the second inductor loop conductor or the corresponding connection end of inductor loop conductor Or conducting resinl realizes electrical connection.
Further, the skeleton of the switch transformer also include the first space bar, the second space bar, the 3rd space bar, 4th space bar, the 5th space bar and insulation board.The periphery left part of principal part be provided with a ring and lower ending opening the first space bar, First space bar and principal part, left limit plate shape are into boost voltage coil groove.Principal part periphery middle part be provided with a ring and under Second space bar of end opening, the 3rd space bar, the 4th space bar and the 5th space bar, the second space bar, the 3rd space bar, Four space bars and the 5th space bar are spacedly distributed from left to right, so that the second space bar forms a left side with principal part, the first space bar Primary coil groove, the second space bar forms left secondary wire ring recess, the 4th space bar and principal part, the 3rd with principal part, the 3rd space bar Space bar forms degaussing coil groove, and the 4th space bar and principal part, the 5th space bar form right secondary wire ring recess, the 5th space bar with Principal part, right limit plate shape are into right primary coil groove.Insulation board has 4, and insulation board is separately positioned on left secondary wire ring recess and right time Both sides before and after the bottom of level coil groove, so that left secondary wire ring recess and right secondary wire ring recess take the shape of the letter U.
The present invention has positive effect:(1)The skeleton of switch transformer of the invention is by primary coil and secondary coil Insulated by cell body and separated, traditional primary coil radially spaced-apart by insulating tape and secondary coil are become by groove Body is axially spaced, so that the radiating effect of switch transformer preferably, when using temperature less than traditional switch transformer 5 to 10 DEG C, service life is more long.
(2)The simple structure of inductor loop conductor of the invention and manufacturing cost is relatively low, secondary coil is complete by circuit board Into loop connection, the sectional area of inductor loop conductor is much larger than copper cash, avoids the need for the copper cash of the more number of turns to wind, caloric value Smaller, radiating effect is excellent, and inductor loop conductor is directly welded on circuit board, considerably reduces switch transformer and electricity The manufacturing process flow of sense, further reduces cost, in addition the usage quantity of insulating tape can also greatly reduce;Inductor loop is led The replacing of body is also more convenient, and whole switch transformer or inductance need not be changed when going wrong.Switch transformer is caused simultaneously And the manufacture of intraocular of whole Switching Power Supply saves half man-hour, technique is relatively simple.
(3)The present invention is too small to solve the problems, such as overcurrent by increasing auxiliary copper cash so that whole switch transformer The inductor loop coil of secondary coil and inductance by circuit board complete loop connect when it is more stable, whole Switching Power Supply it is steady It is qualitative more preferable.
Brief description of the drawings
Fig. 1 is a kind of structural representation of the skeleton of the switch transformer in embodiment 1(Front view);
Fig. 2 is the top view of Fig. 1;
Fig. 3 is the upward view of Fig. 1;
Fig. 4 is a kind of schematic perspective view when left anterior-superior part observation of Fig. 1;
Fig. 5 is a kind of schematic perspective view when being observed from the right front lower place of Fig. 1;
Fig. 6 is a kind of structural representation of the switch transformer component with primary coil in embodiment 2(Front view);
Fig. 7 is the upward view of Fig. 6;
Fig. 8 is a kind of schematic perspective view when left anterior-superior part observation of Fig. 6;
Fig. 9 is a kind of structural representation of the switch transformer in embodiment 3(Front view);
Figure 10 is the upward view of Fig. 9;
Figure 11 is a kind of schematic perspective view when left anterior-superior part observation of Fig. 9;
Figure 12 is the structural representation of the magnetic core in Figure 11;
Figure 13 is the structural representation of the inductor loop conductor in Fig. 9;
Figure 14 is the left view of Figure 13;
Figure 15 is the structural representation of the inductor loop conductor in Figure 11;
Figure 16 is a kind of structural representation of the Switching Power Supply in embodiment 4 and 5(Electronic component is only in front view, figure Switch transformer and inductance are shown);
Figure 17 is a kind of schematic perspective view when left anterior-superior part observation of Figure 16;
Figure 18 is the right view of Figure 16;
Figure 19 be switch transformer from from the B of Figure 16 to Figure 16 during observation with embodiment 6 in auxiliary copper cash connection Schematic diagram.
Mark in above-mentioned accompanying drawing is as follows:
Skeleton 1, principal part 11, magnetic loop hole 11-1, left limit plate 12-1, right limit plate 12-2, upper left limiting section 13-1 is left Lower limit portion 13-2, upper right limiting section 13-3, bottom right limiting section 13-4, the first space bar 14-1, the second space bar 14-2, the 3rd Space bar 14-3, the 4th space bar 14-4, the 5th space bar 14-5, boost voltage coil groove 15-1, left primary coil groove 15-2, Left secondary wire ring recess 15-3, degaussing coil groove 15-4, right secondary wire ring recess 15-5, right primary coil groove 15-6, insulation board 16 are left Stitch connecting portion 17-1, primary coil stitch hole 17-1-1, auxiliary and degaussing coil stitch hole 17-1-2, left coil gathering sill 17-1-3, right stitch connecting portion 17-2, standby stitch hole 17-2-1,
Primary coil 2, degaussing coil 3, boost voltage coil 4, stitch 5, magnetic core 6, secondary coil 7, inductor loop conductor 71, fixed adhesive plaster 8, shell 91, circuit board 92, inductance 93, magnet ring 93-1, the second inductor loop conductor 93-2 aid in copper cash 94.
Specific embodiment
The present invention is described when carrying out orientation and describing with orientation shown in Fig. 1, and the orientation up and down in figure is in description In be also up and down, in figure the orientation of court of drawing institute be front, away from the orientation of drawing be rear.
(The skeleton of embodiment 1, switch transformer)
See Fig. 1 to Fig. 5, the skeleton 1 of the switch transformer of the present embodiment is the integral piece being made of bakelite material, bone The center of frame 1 is principal part 11 in a tubular form, and the center of principal part 11 is provided with the magnetic loop hole 11- for installing magnetic core of left and right insertion 1;The central symmetry of the left and right sides of principal part 11 is provided with for installing left limit plate 12-1, right limit plate spacing during magnetic core 12-2, left limit plate 12-1, right limit plate 12-2 are equipped with the through hole with the 11-1 insertions of magnetic loop hole, left limit plate 12-1 and the right side Limiting plate 12-2 is that the circular slab of center through hole is symmetrical above and below to remove the plate portion formed after a big cambered plate of grade, a left side by being provided with The symmetrical above and below of limiting plate 12-1 is provided with upper left limiting section 13-1, the lower-left limiting section 13-2 for protruding from left limit plate 12-1, right The symmetrical above and below of limiting plate 12-2 is provided with upper right limiting section 13-3, the bottom right limiting section 13-4 for protruding from right limit plate 12-2, a left side Upper limit portion 13-1, upper right limiting section 13-3 in isosceles triangle shape, lower-left limiting section 13-2, bottom right limiting section 13-4 in etc. Lumbar triangle shape;Shape and switch transformer that left limit plate 12-1, upper left limiting section 13-1 and lower-left limiting section 13-2 are formed Magnetic core correspondence, shape and switch transformer that right limit plate 12-2, upper right limiting section 13-3 and bottom right limiting section 13-4 are formed Magnetic core correspondence.The periphery left part of principal part 11 be provided with a ring and lower ending opening the first space bar 14-1, first interval Plate 14-1 forms boost voltage coil groove 15-1 with principal part 11, left limit plate 12-1;The periphery middle part of principal part 11 is provided with a ring And the second space bar 14-2, the 3rd space bar 14-3, the 4th space bar 14-4 and the 5th space bar 14-5, second of lower ending opening Space bar 14-2, the 3rd space bar 14-3, the 4th space bar 14-4 and the 5th space bar 14-5 are spacedly distributed from left to right, from And the second space bar 14-2 and principal part 11, the first space bar 14-1 form left primary coil groove 15-2, the second space bar 14-2 with Principal part 11, the 3rd space bar 14-3 form left secondary wire ring recess 15-3, the 4th space bar 14-4 and principal part 11, the 3rd space bar 14-3 forms degaussing coil groove 15-4, the 4th space bar 14-4 and forms right secondary wire ring recess with principal part 11, the 5th space bar 14-5 15-5, the 5th space bar 14-5 and principal part 11, right limit plate 12-2 form right primary coil groove 15-6.Insulation board 16 has 4, a left side Both sides are equipped with 1 insulation board 16 before and after the bottom of secondary wire ring recess 15-3 and right secondary wire ring recess 15-5, so that left secondary wire Ring recess 15-3 and right secondary wire ring recess 15-5 take the shape of the letter U.Left stitch connecting portion 17-1, left pin are provided with below lower-left limiting section 13-2 The lower end of pin connecting portion 17-1 is provided with 5 stitch holes, including 2 primary coil stitch hole 17-1-1 and 3 auxiliary and degaussing Coil stitch hole 17-1-2, is spacedly distributed between 5 stitch holes, and 4 left coil gathering sill 17- are provided between 5 stitch holes The initiating terminal or clearing end of 1-3, auxiliary and the corresponding boost voltage coils of degaussing coil stitch hole 17-1-2 and degaussing coil are total to With a stitch, so as to only need to 3 auxiliary and degaussing coil stitch hole 17-1-2.The right side is provided with below bottom right limiting section 13-4 The lower end of stitch connecting portion 17-2, right stitch connecting portion 17-2 is provided with the standby stitch hole 17-2-1 of 3 for being spacedly distributed.
(Embodiment 2, the switch transformer component with primary coil)
See Fig. 6 to Fig. 8, the switch transformer component with primary coil of the present embodiment include skeleton 1, primary coil 2, Degaussing coil 3, boost voltage coil 4 and stitch 5, the skeleton 1 use the bone of the switch transformer obtained by embodiment 1 Frame.Stitch 5 by 8, be respectively fixedly disposed at the left stitch connecting portion 17-1 of skeleton 12 primary coil stitch hole 17-1-1, In 3 standby stitch hole 17-2-1 of 3 auxiliary and degaussing coil stitch hole 17-1-2 and right stitch connecting portion 17-2.
Primary coil 2, degaussing coil 3, boost voltage coil 4 use conductor wire, the present embodiment to use conductive copper wire;Just Level coil 2 be wrapped in the left primary coil groove 15-2 of skeleton 1 and right primary coil groove 15-6, the initiating terminal of primary coil 2 and Clearing end is welded to connect with the stitch 5 in 2 primary coil stitch hole 17-1-1 of left stitch connecting portion 17-1 respectively;Remove magnet-wire Circle 3 is wrapped in degaussing coil groove 15-4, and boost voltage coil 4 is wrapped in boost voltage coil groove 15-1, the He of degaussing coil 3 The initiating terminal or clearing end of boost voltage coil 4 share 1 in the degaussing coil stitch hole 17-1-2 of left stitch connecting portion 17-1 Individual stitch 5, so that the degaussing of the initiating terminal or clearing end of degaussing coil 3 and boost voltage coil 4 and left stitch connecting portion 17-1 Same 1 stitch 5 in coil stitch hole 17-1-2 is welded to connect, the other end of degaussing coil 3 and boost voltage coil 4 respectively with Stitch 5 in remaining 2 degaussing coil stitch hole 17-1-2 of left stitch connecting portion 17-1 is welded to connect.Primary coil 2, go The equal insulation processing in the cross-contact position of magnetic coil 3 and boost voltage coil 4, coil is wrapped up in the present embodiment using insulating tape Copper cash realizes insulation processing.
(Embodiment 3, switch transformer)
See Fig. 9 to Figure 11, the switch transformer of the present embodiment includes the switch with primary coil obtained by embodiment 2 Transformer device, magnetic core 6, secondary coil 7 and fixed adhesive plaster 8.See Figure 12, the quantity of the magnetic core 6 is 2, using model It is the general magnetic core of EPC39, magnetic core 6 makees paint-dipping process treatment, the shape of the head of magnetic core 6 and the left or right of skeleton 1 Shape correspondence, the shape of the core of magnetic core 6 is corresponding with the magnetic loop hole 11-1 of skeleton 1.Still see Fig. 9 to Figure 11,2 magnetic cores 6 Respectively from the left and right two ends of skeleton 1 by its core insertion magnetic loop hole 11-1 up to the head of 2 magnetic cores 6 is respectively embedded into skeleton In 1 left side and right side, so as to magnetic core is spacing about 6 be arranged on skeleton 1, and magnetic loop is formed;2 magnetic cores 6 pass through It is fixedly connected from circumferential winding using fixed adhesive plaster 8, so as to magnetic core 6 or so is installed on skeleton 1.
The circle of quantity 1 to 8 of secondary coil 8,1 to 3 inductor loop conductor 71 is included per circle secondary coil 7;The present embodiment The quantity of middle secondary coil 7 is 2 circles, and 1 inductor loop conductor 71 is included per circle secondary coil 7.See Figure 13 to Figure 15, inductance is returned Road conductor 71 is overall to be made in inverted U-shaped of copper material or copper clad aluminum material, and the copper material uses the preferable red copper of electric conductivity, electricity Feel the circular in cross-section or kidney ellipsoid of return conductors 71, its area of section is 0.5 to 10mm2, inductor loop in the present embodiment The circular in cross-section of conductor 71, area of section are 2mm2.Inverted U-shaped inductor loop conductor 71 has 2 connection ends.Still see figure 9 to Figure 11, the openings of sizes at 2 connection ends of inductor loop conductor 71 is corresponding with left secondary wire ring recess 15-3, inductor loop The height of conductor 71 is corresponding with the height of left primary coil groove 15-2.2 circle secondary coils 7 are separately positioned on left secondary wire ring recess In 15-3 and right secondary wire ring recess 15-5, all inductor loop conductors 71 respectively by its opening through after the principal part 11 of skeleton 1 by Left secondary wire ring recess 15-3 or right secondary wires ring recess 15-5 is stretched out in its 2 connection ends, and the connection end of inductor loop conductor 71 is The initiating terminal and clearing end of secondary coil 7.The switch transformer of the present embodiment is installed when on circuit boards, by its 8 stitch 9 with And the connection end of all inductor loop conductors 71 through circuit board corresponding via after slicker solder weld by way of and circuit board Electrical connection.
(Embodiment 4, Switching Power Supply)
See Figure 16 to Figure 18, the Switching Power Supply of the present embodiment includes shell 91, circuit board 92 and obtained by embodiment 3 Switch transformer, circuit board 92 is the printed circuit board (PCB) for being used for Switching Power Supply, and English name is PCB(Printed Circuit Board);The conductive Copper Foil for whole circuit is printed with circuit board 92.Circuit board 92 is arranged in shell 91.Circuit Switch transformer and all kinds of electronic components for Switching Power Supply are installed on plate 92(It is not shown in addition to inductance in figure).Open Close transformer 8 stitch 5 through circuit board 92 corresponding via after slicker solder weld by way of electrically connected with circuit board 92, After 2 connection ends of all inductor loop conductors 71 of the secondary coil 7 of switch transformer pass through the corresponding via of circuit board 92 Electrically connected with circuit board 92 by way of slicker solder is welded, so as to switch transformer is fixedly connected on circuit board 92.Per circle Be connected in parallel by circuit board 92 between 1 to 3 inductor loop conductor 71 included by secondary coil 7, each circle secondary coil 7 it Between be connected in series by circuit board 92 so that each circle secondary coil 7 by circuit board 92 complete loop connect.
(Embodiment 5, Switching Power Supply)
Still see Figure 16 to Figure 18, the Switching Power Supply of the present embodiment is substantially the same manner as Example 4, its difference is:Also Including inductance 93.Inductance 93 includes the magnet ring circle inductance coils of 93-1 and 1 to 25, and the magnet ring 93-1 surfaces are covered with insulating barrier;Often Circle inductance coil includes 1 to 3 second inductor loop conductor 93-2, and the quantity of inductance coil is 4 circles in the present embodiment, the electricity per circle Sense coil includes 2 second inductor loop conductor 93-2;Second inductor loop conductor 93-2 integrally in inverted U-shaped, using copper material or Copper clad aluminum material is made, and the copper material uses the preferable red copper of electric conductivity, and the cross section of the second inductor loop conductor 93-2 is in circle Shape or kidney ellipsoid, its area of section are 0.5 to 10mm2, the area of section of the second inductor loop conductor 93-2 is in the present embodiment 2mm2.The second inverted U-shaped inductor loop conductor 93-2 has 2 connection ends.2 connection ends of the second inductor loop conductor 93-2 The openings of sizes at place is corresponding with the ring footpath of magnet ring 93-1, the height of the second inductor loop conductor 93-2 and the height pair of magnet ring 93-1 Should.All second inductor loop conductor 93-2 are open through after the ring portion of magnet ring 93-1 by it connect with magnet ring 93-1 tight fits respectively Connect, 2 connection ends of the second inductor loop conductor 93-2 being enclosed within magnet ring 93-1 are through leading to after the corresponding via of circuit board 92 The mode for crossing slicker solder welding is electrically connected with circuit board 92, and the second inductor loop conductor 93-2 is fixedly connected on circuit board 92, It is arranged on circuit board 92 so as to magnet ring 93-1 is also spacing in the presence of the second inductor loop conductor 93-2.Per circle inductance coil It is connected in parallel by circuit board 92 between 1 to 3 included second inductor loop conductor 93-2, is led between each circle inductance coil Oversampling circuit plate 92 is connected in series, thus each circle inductance coil by circuit board 92 complete loop connect, each circle inductance coil around The equiangularly spaced distribution in center of magnet ring 93-1.
(Embodiment 6, Switching Power Supply)
The Switching Power Supply of the present embodiment is essentially identical with embodiment 4 or 5, and its difference is:Also include auxiliary copper cash 94, the overcurrent size of such as copper-foil conducting electricity of circuit board 92 is inadequate, then front and rear 2 connected second inductor loops in circuit Pass through to increase between the corresponding connection end of conductor 93-2 or between the corresponding connection end of front and rear 2 connected inductor loop conductors 71 Copper cash 94 is aided in increase electric current, the auxiliary copper cash 94 and the second inductor loop conductor 93-2 or the phase of inductor loop conductor 71 Answer and electrical connection is realized by welding or conducting resinl between connection end, auxiliary copper cash 94 is arranged on the solder side or element of circuit board 92 Surface side, sees Figure 19, aids in copper cash 94 to be arranged on the welding surface side of circuit board 92 in the present embodiment, and auxiliary copper cash 94 is arranged on Between the corresponding connection end of 2 inductor loop conductors 71 of the secondary coil 7 of switch transformer.
Obviously, above-described embodiment is only intended to clearly illustrate example of the present invention, and is not to of the invention The restriction of implementation method.For those of ordinary skill in the field, it can also be made on the basis of the above description The change or variation of its multi-form.There is no need and unable to be exhaustive to all of implementation method.And these belong to this hair Obvious change that bright spirit is extended out or among changing still in protection scope of the present invention.

Claims (4)

1. a kind of Switching Power Supply, it is characterised in that:Including shell(91), circuit board(92)And installed in circuit board(92)On Including all kinds of electronic components for Switching Power Supply including switch transformer;Circuit board(92)On be printed with for whole electricity The conductive Copper Foil on road;Circuit board(92)Installed in shell(91)It is interior;
The switch transformer includes switch transformer component, magnetic core with primary coil(6), secondary coil(7)And it is solid Determine adhesive plaster(8);
Switch transformer component with primary coil includes skeleton(1), primary coil(2), degaussing coil(3), boost voltage Coil(4)And stitch(5);
Skeleton(1)Including centrally located principal part(11), be symmetricly set on principal part(11)The left and right sides magnetic core limiting section with And it is arranged on the stitch connecting portion of the lower section of corresponding magnetic core limiting section;Principal part(11)Center be provided with left and right insertion for pacifying Fill the magnetic loop hole of magnetic core(11-1);Magnetic core limiting section and principal part(11)Left and right insertion, and magnetic core limiting section and magnetic loop hole (11-1)Shape it is corresponding with the shape of magnetic core;Principal part(11)Periphery be sequentially provided with boost voltage coil groove vertically(15- 1), left primary coil groove(15-2), left secondary wire ring recess(15-3), degaussing coil groove(15-4), right secondary wire ring recess(15-5) With right primary coil groove(15-6), left secondary wire ring recess(15-3)And right secondary wire ring recess(15-5)Peripheral shape take the shape of the letter U;Pin Pin connecting portion includes being located at lower-left limiting section(13-2)Lower section left stitch connecting portion(17-1)With positioned at bottom right limiting section (13-4)Lower section right stitch connecting portion(17-2);Left stitch connecting portion(17-1)Lower end be provided with 5 stitch holes, including 2 Individual primary coil stitch hole(17-1-1)And 3 auxiliary and degaussing coil stitch hole(17-1-2), between being waited between 5 stitch holes Every distribution, 4 left coil gathering sills are provided between 5 stitch holes(17-1-3);Right stitch connecting portion(17-2)Lower end be provided with 3 standby stitch holes being spacedly distributed(17-2-1);
Stitch(5)There are 8, be respectively fixedly disposed at skeleton(1)Left stitch connecting portion(17-1)2 primary coil stitch holes (17-1-1), 3 auxiliary and degaussing coil stitch hole(17-1-2)With right stitch connecting portion(17-2)3 standby stitch holes (17-2-1)It is interior;
Primary coil(2), degaussing coil(3), boost voltage coil(4)Use conductor wire;Primary coil(2)It is wrapped in skeleton (1)Left primary coil groove(15-2)And right primary coil groove(15-6)It is interior, primary coil(2)Initiating terminal and clearing end difference With left stitch connecting portion(17-1)2 primary coil stitch holes(17-1-1)Interior stitch(5)It is welded to connect;Degaussing coil (3)It is wrapped in degaussing coil groove(15-4)It is interior, boost voltage coil(4)It is wrapped in boost voltage coil groove(15-1)It is interior, degaussing Coil(3)With boost voltage coil(4)Initiating terminal or clearing end share left stitch connecting portion(17-1)Auxiliary and remove magnet-wire Circle stitch hole(17-1-2)1 interior stitch(5), so that degaussing coil(3)With boost voltage coil(4)Initiating terminal or termination End and left stitch connecting portion(17-1)Auxiliary and degaussing coil stitch hole(17-1-2)Interior same 1 stitch(5)It is welded to connect, Degaussing coil(3)With boost voltage coil(4)The other end respectively with left stitch connecting portion(17-1)It is remaining 2 auxiliary and Degaussing coil stitch hole(17-1-2)Interior stitch(5)It is welded to connect;Primary coil(2), degaussing coil(3)With boost voltage line Circle(4)The equal insulation processing in cross-contact position;
The magnetic core(6)Quantity be 2, magnetic core(6)Make paint-dipping process treatment, magnetic core(6)Head shape and skeleton(1) Left or right shape correspondence, magnetic core(6)Core shape and skeleton(1)Magnetic loop hole(11-1)Correspondence;2 magnetic Core(6)Respectively from skeleton(1)Left and right two ends by its core insertion magnetic loop hole(11-1)In until 2 magnetic cores(6)Head It is respectively embedded into skeleton(1)Left side and right side in so that magnetic core(6)It is spacing up and down to be arranged on skeleton(1)On, and form magnetic Loop;2 magnetic cores(6)Fixed adhesive plaster is used by from circumferential(8)Wind and be fixedly connected, so as to by magnetic core(6)Left and right is spacing Installed in skeleton(1)On;
The quantity of secondary coil is 1 to 8 circle, per circle secondary coil(7)Including 1 to 3 inductor loop conductor(71);Inductor loop Conductor(71)Overall to be made of copper material or aluminum core copper wire or aluminum in inverted U-shaped, the copper material is preferably purple using electric conductivity Copper, inductor loop conductor(71)Circular in cross-section or kidney ellipsoid, its area of section be 0.5 to 10mm2;Inverted U-shaped inductance Return conductors(71)With 2 connection ends;Inductor loop conductor(71)2 connection ends at openings of sizes and left secondary coil Groove(15-3)Correspondence, inductor loop conductor(71)Height and left primary coil groove(15-2)Height correspondence;2 circle secondary coils (7)It is separately positioned on left secondary wire ring recess(15-3)With right secondary wire ring recess(15-5)It is interior, all inductor loop conductors(71)Point Not by its opening through skeleton(1)Principal part(11)Afterwards left secondary wire ring recess is stretched out by its 2 connection ends(15-3)Or right secondary Coil groove(15-5), inductor loop conductor(71)Connection end be secondary coil(7)Initiating terminal and clearing end;
8 stitch of switch transformer(5)Through circuit board(92)Corresponding via after slicker solder weld by way of and circuit Plate(92)Electrical connection, the secondary coil of switch transformer(7)All inductor loop conductors(71)2 connection ends pass through circuit Plate(92)Corresponding via after slicker solder weld by way of and circuit board(92)Electrical connection, connects so as to switch transformer be fixed It is connected on circuit board(92)On;Per circle secondary coil(7)1 to 3 included inductor loop conductor(71)Between pass through circuit board (92)It is connected in parallel, each circle secondary coil(7)Between pass through circuit board(92)It is connected in series, so that each circle secondary coil(7)It is logical Oversampling circuit plate(92)Complete loop connection.
2. Switching Power Supply according to claim 1, it is characterised in that:It is described installed in circuit board(92)On electronics unit Device also includes inductance(93);Inductance(93)Including magnet ring(93-1)And 1 to 25 circle inductance coil, the magnet ring(93-1)Surface It is covered with insulating barrier;Include 1 to 3 second inductor loop conductor per circle inductance coil(93-2);Second inductor loop conductor(93- 2)Overall to be made of copper material or aluminum core copper wire or aluminum in inverted U-shaped, the copper material uses the preferable red copper of electric conductivity, the Two inductor loop conductors(93-2)Circular in cross-section or kidney ellipsoid, its area of section be 0.5 to 10mm2;Inverted U-shaped second Inductor loop conductor(93-2)With 2 connection ends;Second inductor loop conductor(93-2)2 connection ends at openings of sizes With magnet ring(93-1)Ring footpath correspondence, the second inductor loop conductor(93-2)Height and magnet ring(93-1)Height correspondence;Institute There is the second inductor loop conductor(93-2)Respectively by its opening through magnet ring(93-1)Ring portion after with magnet ring(93-1)Tight fit Connection, is enclosed within magnet ring(93-1)On the second inductor loop conductor(93-2)2 connection ends pass through circuit board(92)It is corresponding After via slicker solder weld by way of and circuit board(92)Electrical connection, and the second inductor loop conductor(93-2)It is fixedly connected on Circuit board(92)On, so that magnet ring(93-1)In the second inductor loop conductor(93-2)In the presence of also spacing be arranged on circuit board (92)On;Per 1 to 3 second inductor loop conductor included by circle inductance coil(93-2)Between pass through circuit board(92)It is in parallel Connection, passes through circuit board between each circle inductance coil(92)It is connected in series, so that each circle inductance coil passes through circuit board(92)It is complete Into loop connection, each circle inductance coil is around magnet ring(93-1)The equiangularly spaced distribution in center.
3. Switching Power Supply according to claim 2, it is characterised in that:Also include auxiliary copper cash(94);For increasing electric current Auxiliary copper cash(94)2 connected second inductor loop conductors before and after being arranged on(93-2)Corresponding connection end between or it is front and rear 2 connected inductor loop conductors(71)Corresponding connection end between, the auxiliary copper cash(94)With the second inductor loop conductor (93-2)Or inductor loop conductor(71)Corresponding connection end between by welding or conducting resinl realize electrical connection.
4. Switching Power Supply according to claim 1, it is characterised in that:The skeleton of the switch transformer(1)Also include the One space bar(14-1), the second space bar(14-2), the 3rd space bar(14-3), the 4th space bar(14-4), the 5th space bar (14-5)And insulation board(16);Principal part(11)Periphery left part be provided with a ring and lower ending opening the first space bar(14-1), First space bar(14-1)With principal part(11), left limit plate(12-1)Form boost voltage coil groove(15-1);Principal part (11)Periphery middle part be provided with a ring and lower ending opening the second space bar(14-2), the 3rd space bar(14-3), between the 4th Dividing plate(14-4)With the 5th space bar(14-5), the second space bar(14-2), the 3rd space bar(14-3), the 4th space bar(14- 4)With the 5th space bar(14-5)It is spacedly distributed from left to right, so that the second space bar(14-2)With principal part(11), between first Dividing plate(14-1)Form left primary coil groove(15-2), the second space bar(14-2)With principal part(11), the 3rd space bar(14-3) Form left secondary wire ring recess(15-3), the 4th space bar(14-4)With principal part(11), the 3rd space bar(14-3)Magnet-wire is removed in formation Ring recess(15-4), the 4th space bar(14-4)With principal part(11), the 5th space bar(14-5)Form right secondary wire ring recess(15-5), 5th space bar(14-5)With principal part(11), right limit plate(12-2)Form right primary coil groove(15-6);Insulation board(16)Have 4 It is individual, insulation board(16)It is separately positioned on left secondary wire ring recess(15-3)And right secondary wire ring recess(15-5)Bottom before and after both sides, So as to left secondary wire ring recess(15-3)And right secondary wire ring recess(15-5)Take the shape of the letter U.
CN201510096673.6A 2015-03-04 2015-03-04 Switch transformer and Switching Power Supply Expired - Fee Related CN104681253B (en)

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CN201710474881.4A CN107221419B (en) 2015-03-04 2015-03-04 The skeleton and Switching Power Supply of switch transformer
CN201710474385.9A CN107481838B (en) 2015-03-04 2015-03-04 Switch transformer assembly with primary coil and switch power supply
CN201510096673.6A CN104681253B (en) 2015-03-04 2015-03-04 Switch transformer and Switching Power Supply
CN201710474587.3A CN107221418B (en) 2015-03-04 2015-03-04 Switch transformer

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CN201710474587.3A Division CN107221418B (en) 2015-03-04 2015-03-04 Switch transformer
CN201710474881.4A Division CN107221419B (en) 2015-03-04 2015-03-04 The skeleton and Switching Power Supply of switch transformer

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CN201510096673.6A Expired - Fee Related CN104681253B (en) 2015-03-04 2015-03-04 Switch transformer and Switching Power Supply
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CN201622903U (en) * 2009-11-27 2010-11-03 厦门赛特勒磁电有限公司 Novel multi-groove flyback high frequency transformer
CN101740196B (en) * 2010-02-11 2012-09-05 上海汇慧电子通讯有限公司 Common and differential mode inductor
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CN107221419A (en) 2017-09-29
CN107221419B (en) 2019-03-19
CN104681253A (en) 2015-06-03
CN107221418A (en) 2017-09-29
CN107481838B (en) 2020-05-01
CN107221418B (en) 2019-03-19

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