CN109065337A - Printed circuit board flat-plate transformer - Google Patents
Printed circuit board flat-plate transformer Download PDFInfo
- Publication number
- CN109065337A CN109065337A CN201810760010.3A CN201810760010A CN109065337A CN 109065337 A CN109065337 A CN 109065337A CN 201810760010 A CN201810760010 A CN 201810760010A CN 109065337 A CN109065337 A CN 109065337A
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- China
- Prior art keywords
- circuit board
- printed circuit
- plate
- coil
- connecting plate
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/24—Magnetic cores
- H01F27/26—Fastening parts of the core together; Fastening or mounting the core on casing or support
- H01F27/266—Fastening or mounting the core on casing or support
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/2804—Printed windings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/29—Terminals; Tapping arrangements for signal inductances
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/30—Fastening or clamping coils, windings, or parts thereof together; Fastening or mounting coils or windings on core, casing, or other support
- H01F27/306—Fastening or mounting coils or windings on core, casing or other support
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/2804—Printed windings
- H01F2027/2809—Printed windings on stacked layers
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Coils Or Transformers For Communication (AREA)
Abstract
The present invention provides a kind of printed circuit board flat-plate transformer, including magnetic core, armature winding and secondary windings, armature winding includes the first printed circuit board of multilayer, and each first printed circuit board includes the first Circular Plate and the first connecting plate；Secondary windings includes the second printed circuit board of multilayer, and each second printed circuit board includes the second Circular Plate and the second connecting plate；The centre bore of first Circular Plate and the centre bore of the second Circular Plate cooperatively form through-hole；Magnetic core has magnetic pole and magnet frame；First connecting plate and the second connecting plate are located at the two sides of through-hole.First printed circuit board of the invention passes through the first Circular Plate of setting and the first connecting plate, second printed circuit board passes through the second Circular Plate of setting and the second connecting plate, first Circular Plate and the second Circular Plate are centrally formed through-hole, first connecting plate and the second connecting plate are located at the two sides of through-hole, then the first connecting plate and the second connecting plate stretch out the two sides of magnetic core respectively, to facilitate differentiation, assembling and use.
Description
Technical field
The invention belongs to field transformers, are to be related to a kind of printed circuit board flat-plate transformer more specifically.
Background technique
Flat-plate transformer have high current density, high efficiency, low drain sense, it is small in size the features such as；Thus it is used widely.
Flat-plate transformer can be divided into printed circuit (PCB) type, thick-film type, film-type, 4 kinds of submicron；PCB type flat-plate transformer is (i.e.
Printed circuit board flat-plate transformer), it is that helical winding is formed using printed circuit board manufacturing process on multilayer boards, fits
Together in the transformer of the more stable middle low power of manufacturing property.Current PC Type B printed circuit board flat-plate transformer is usually
Armature winding PCB and secondary windings PCB are made as identical size, then are stacked.This structure assembling in use,
Be difficult to differentiate between it is positive and negative, assembling with it is inconvenient to use.
Summary of the invention
It is existing in the prior art to solve the purpose of the present invention is to provide a kind of printed circuit board flat-plate transformer
The assembling of printed circuit board flat-plate transformer and inconvenient problem with use.
To achieve the above object, the technical solution adopted by the present invention is that: a kind of printed circuit board flat-plate transformer is provided,
Including magnetic core, armature winding and secondary windings, the armature winding includes the first printed circuit board of multilayer being stacked, each institute
The first connecting plate that the first printed circuit board includes the first Circular Plate and extended by the side of first Circular Plate is stated, it is described
First Circular Plate is equipped with coil, and the both ends of the coil extend on first connecting plate, the first printing described in multilayer
The coil of circuit board is connected；The secondary windings includes the second printed circuit board of multilayer being stacked, each second printing
Circuit board includes the second Circular Plate and the second connecting plate for being extended by two sides of second Circular Plate, second Circular Plate
It is equipped with coil, and the both ends of the coil extend on second connecting plate, the described in the multilayer of each secondary windings
The coil of two printed circuit boards is connected；The centre bore of first Circular Plate and the centre bore of second Circular Plate cooperatively form
Through-hole；The magnetic pole that there is the magnetic core cooperation to be inserted into the through-hole and the magnetic around the armature winding and the secondary windings
Frame, the magnetic pole are set in the magnet frame, and both sides opposite with the magnet frame are connected respectively at the both ends of the magnetic pole；Described first
Connecting plate and second connecting plate are located at the two sides of the through-hole.
Further, the secondary windings is in parallel two sets, two sets secondary windings be respectively arranged on the primary around
The two sides of group.
Further, the diameter of the magnetic pole is greater than or equal to four times of each coil width.
Further, the width of each coil is 5.5mm.
Further, the cross-sectional area range of each coil is 1.0mm2~1.2mm2。
Further, each first connecting plate is equipped with the two neighboring first printed circuit board coil of connecting
First pad.
Further, at least two first apertures on each first connecting plate, the armature winding further includes wearing respectively
The first pin crossing each first aperture and being fixedly linked with corresponding first connecting plate, each coil of the armature winding
The both ends that series connection forms winding are electrical connected with two first pins respectively.
Further, second connecting plate is equipped with seven the second pads；Two neighboring second printed circuit board
Coil is connected through correspondence second pad, and seven the second pad settings are in a column, two neighboring second pad interval
Setting.
Further, the second aperture is offered in each second pad on each second printed circuit board, it is described
Printed circuit board flat-plate transformer further include be each passed through each second aperture and with the corresponding second pad solder phase
Seven root cutting needles even, each contact pin pass through each corresponding second aperture of two sets of secondary windings.
Further, corresponding three contact pins at the two corners of second connecting plate end and middle part stretch out stacking and set
Second printed circuit board described in the multilayer set forms whole one side and forms second pin.
The beneficial effect of printed circuit board flat-plate transformer provided by the invention is: compared with prior art, this hair
First printed circuit board of bright armature winding passes through the first Circular Plate of setting and the first connecting plate, the second printing electricity of secondary windings
Road plate is centrally formed logical by the second Circular Plate of setting and the second connecting plate, the first Circular Plate with after the second annulus board stacking
The magnetic pole of magnetic core is inserted into through-hole by hole；And the first connecting plate and the second connecting plate are located at the two sides of through-hole, then first connects
Fishplate bar and the second connecting plate can stretch out the two sides of magnetic core respectively, with convenient to use, and facilitate differentiation and assembling.
Detailed description of the invention
It to describe the technical solutions in the embodiments of the present invention more clearly, below will be to embodiment or description of the prior art
Needed in attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description is only of the invention some
Embodiment for those of ordinary skill in the art without any creative labor, can also be according to these
Attached drawing obtains other attached drawings.
Fig. 1 is the overlooking structure diagram of printed circuit board flat-plate transformer provided in an embodiment of the present invention；
Fig. 2 is the left view structural representation of the printed circuit board flat-plate transformer of Fig. 1；
Fig. 3 is the backsight structural representation of the printed circuit board flat-plate transformer of Fig. 1；
Fig. 4 is the positive structure diagram of the printed circuit board flat-plate transformer of Fig. 1；
Fig. 5 is the schematic perspective view of armature winding and secondary windings in the printed circuit board flat-plate transformer of Fig. 1
One；
Fig. 6 is the schematic perspective view of armature winding and secondary windings in the printed circuit board flat-plate transformer of Fig. 1
Two.
Wherein, each attached drawing main mark in figure:
10- magnetic core；11- magnet frame；12- magnetic pole；15- insulating tape；20- armature winding；The first printed circuit board of 21-；
The first Circular Plate of 211-；The first connecting plate of 212-；The first pad of 2121-；The first pin of 22-；30- secondary windings；31- second prints
Printed circuit board；The second Circular Plate of 311-；The second connecting plate of 312-；The second pad of 3121-；32- contact pin；33- second pin；40-
Coil；41- insulating layer；45- through-hole.
Specific embodiment
In order to which technical problems, technical solutions and advantages to be solved are more clearly understood, tie below
Accompanying drawings and embodiments are closed, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only
To explain the present invention, it is not intended to limit the present invention.
It should be noted that it can be directly another when element is referred to as " being fixed on " or " being set to " another element
On one element or indirectly on another element.When an element is known as " being connected to " another element, it can
To be directly to another element or be indirectly connected on another element.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include one or more of the features.In the description of the present invention, the meaning of " plurality " is two or more,
Unless otherwise specifically defined." several " are meant that one or more, unless otherwise specifically defined.
In the description of the present invention, it is to be understood that, term " center ", " length ", " width ", " thickness ", "upper",
The orientation or position of the instructions such as "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside"
Relationship is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of description of the present invention and simplification of the description, without referring to
Show or imply that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore cannot manage
Solution is limitation of the present invention.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
The interaction relationship of connection or two elements inside two elements.It for the ordinary skill in the art, can be with
The concrete meaning of above-mentioned term in the present invention is understood as the case may be.
Also referring to Fig. 1 to Fig. 6, now printed circuit board flat-plate transformer provided by the invention is illustrated.Institute
State printed circuit board flat-plate transformer, including magnetic core 10, armature winding 20 (i.e. primary side winding) and (the i.e. secondary side of secondary windings 30
Winding), armature winding 20 and secondary windings 30 are mounted on magnetic core 10.
Armature winding 20 includes the first printed circuit board of multilayer 21, and the first printed circuit board of multilayer 21 is stacked, and each the
One printed circuit board 21 includes the first Circular Plate 211 and the first connecting plate 212, and the first connecting plate 212 is by the first Circular Plate 211
Side is extended, and the first Circular Plate 211 is equipped with coil 40, and the both ends of coil 40 extend on the first connecting plate 212, multilayer
The coil 40 of first printed circuit board 21 is connected.The first Circular Plate 211 is arranged in each first printed circuit board 21, then corresponds to coil
40 are arranged in the first Circular Plate 211, and coil 40 is arranged in circular ring shape, then can reduce the corner angle on coil 40, thus
When an electric current passes through it, loss can be reduced, improve current density, increase power, reduce the heat of generation.
Secondary windings 30 includes the second printed circuit board of multilayer 31, and the second printed circuit board of multilayer 31 is stacked, and each the
Two printed circuit boards 31 include the second Circular Plate 311 and the second connecting plate 312 extended by two sides of the second Circular Plate 311,
Second Circular Plate 311 is equipped with coil 40, and the both ends of coil 40 extend on the second connecting plate 312, secondary windings 30 it is more
The coil 40 of the second printed circuit board 31 of layer is connected.The second Circular Plate 311 is arranged in each second printed circuit board 31, then corresponds to line
Circle 40 is arranged in the second Circular Plate 311, and coil 40 is arranged in circular ring shape, then can reduce the corner angle on coil 40, from
And when an electric current passes through it, loss can be reduced, improve current density, increase power, reduce the heat of generation.
When secondary windings 30 is mounted on armature winding 20, the first Circular Plate 211 of the first printed circuit board of multilayer 21
It is laminated with the second Circular Plate 311 of the second printed circuit board 31, center cooperatively forms through-hole 45, i.e. the first Circular Plate 211
Centre bore and the centre bore of the second Circular Plate 311 cooperatively form through-hole 45
Magnetic core 10 has magnetic pole 12 and magnet frame 11；Magnet frame 11 is set to around armature winding 20 and secondary windings 30, magnetic pole 12
In magnet frame 11, both sides opposite with magnet frame 11 are connected respectively at the both ends of magnetic pole 12.
In the cooperation insertion through-hole 45 of magnetic pole 12, armature winding 20 and secondary windings 30 are wound on magnetic core 10.Into one
Step ground, the internal diameter of the diameter and through-hole 45 of magnetic pole 12 matches, then magnetic pole 12 can be arranged it is relatively large, so that magnetic pole 12 can
It is thermally conductive preferably to carry out, and be transmitted on magnet frame 11, improve radiating efficiency.
Printed circuit board flat-plate transformer provided by the invention, compared with prior art, armature winding 20 of the present invention
First printed circuit board 21 passes through the first Circular Plate 211 of setting and the first connecting plate 212, the second printed circuit of secondary windings 30
Plate 31 is by being arranged the second Circular Plate 311 and the second connecting plate 312, after the first Circular Plate 211 and the second Circular Plate 311 are laminated,
It is centrally formed through-hole 45, and the magnetic pole 12 of magnetic core 10 is inserted into through-hole 45；And the first connecting plate 212 and the second connecting plate 312
Being located at the two sides of through-hole 45, then the first connecting plate 212 and the second connecting plate 312 can stretch out the two sides of magnetic core 10 respectively,
With convenient to use, and facilitate differentiation and assembling.
Further, also referring to Fig. 5 and Fig. 6, as printed circuit board flat-plate transformer provided by the invention
A kind of specific embodiment, secondary windings 30 are two sets of parallel connection, and two sets of secondary windings 30 are respectively arranged on the two of armature winding 20
Face；It so that the induced magnetic field generated in armature winding 20 can preferably enter secondary windings 30, improves efficiency, reduces loss.
Further, also referring to Fig. 1 to Fig. 6, as printed circuit board flat-plate transformer provided by the invention
A kind of specific embodiment, the diameter of magnetic pole 12 are greater than or equal to four times of each 40 width of coil, thus in each first printing electricity
The heat that the work of the coil 40 of road plate 21 and each second printed circuit board 31 generates, on the one hand can shed, and can be from magnetic
Column 12 exports, while the heat generated in magnetic pole 12, can also preferably be exported, radiating efficiency is made to be highly improved,
So as to preferably improve the current density of coil 40, the power of the printed circuit board flat-plate transformer is improved.
The magnetic pole 12 of magnetic core 10 is matched with through-hole 45, and the diameter of magnetic pole 12 is set and is greater than or equal to each coil 40
Four times of width, with better magnetic conduction, improve efficiency, and reduce the heat of generation, while can radiate by magnetic pole 12, and
Conduction to magnet frame 11 radiates, and radiating efficiency is improved, to can reduce volume while improving power.
Further, also referring to Fig. 5 and Fig. 6, as printed circuit board flat-plate transformer provided by the invention
A kind of specific embodiment, the width of each coil 40 are 5.5mm.5.5mm is set by the width of each coil 40, it can be improved
Heat dissipation performance and density by electric current.Correspondingly, the diameter of magnetic pole 12 is greater than or equal to 22mm.
Further, the coil 40 in each first printed circuit board 21 is made by copper foil.In each second printed circuit board 31
Coil 40 made by copper foil.
Further, two sets of secondary windings 30 can be symmetricly set on the two sides of armature winding 20, to facilitate setting and group
Dress.
Further, also referring to Fig. 5 and Fig. 6, as printed circuit board flat-plate transformer provided by the invention
A kind of specific embodiment, the cross-sectional area range of each coil 40 are 1.0mm2~1.2mm2, to pass through in coil 40
Biggish electric current improves the power of the printed circuit board flat-plate transformer, guarantees the printed circuit board flat-plate transformer electricity
Range is flowed in 30A~35A stability of characteristics.
Further, also referring to Fig. 5 and Fig. 6, as printed circuit board flat-plate transformer provided by the invention
A kind of specific embodiment, each first connecting plate 212 is equipped with the first pad 2121, so that two neighboring first printed circuit board
21 coils 40 can be connected by the first pad 2121, be gone here and there two neighboring first printed circuit board, 21 coil 40 with facilitating
Connection, while also facilitating connection external circuit, it is easy to use.
Further, also referring to Fig. 5 and Fig. 6, as printed circuit board flat-plate transformer provided by the invention
A kind of specific embodiment, at least two first apertures on each first connecting plate 212, armature winding 20 further include be each passed through it is each
First aperture and the first pin 22 being fixedly linked with corresponding first connecting plate 212, the series connection shape of each coil 40 of armature winding 20
It is electrical connected respectively with two the first pins 22 at the both ends of winding.First pin 22 is set, to facilitate connection external circuit.When
So, in some other embodiment, it can be welded by the first pad 2121 and draw lead.
Further, also referring to Fig. 5 and Fig. 6, as printed circuit board flat-plate transformer provided by the invention
A kind of specific embodiment, the width of the coil 40 in each first Circular Plate 211 are less than the width of first Circular Plate 211, and
Four sides of 40 cross section of coil are respectively equipped with insulating layer, and equally, four sides on the first connecting plate 212 in 40 cross section of coil are distinguished
Equipped with insulating layer, it can protection coil 40, and short circuit can be prevented.
Further, also referring to Fig. 5 and Fig. 6, as printed circuit board flat-plate transformer provided by the invention
A kind of specific embodiment, the second connecting plate 312 are equipped with seven the second pads 3121；Two neighboring second printed circuit board 31
Coil 40 is through corresponding second pad 3121 series connection.The structure, which can be convenient, goes here and there two neighboring printed circuit board coil 40
Connection, while also facilitating connection external circuit, it is easy to use.
Further, also referring to Fig. 5 and Fig. 6, as printed circuit board flat-plate transformer provided by the invention
A kind of specific embodiment, the width of the coil 40 in each second Circular Plate 311 are less than the width of second Circular Plate 311, and
Four sides of 40 cross section of coil are respectively equipped with insulating layer 41, equally, in four sides point of 40 cross section of coil on the second connecting plate 312
It She You insulating layer 41, it can protection coil 40, and short circuit can be prevented.
Further, also referring to Fig. 5 and Fig. 6, as printed circuit board flat-plate transformer provided by the invention
A kind of specific embodiment, seven the second pad 3121 settings are in a column, the setting of the two neighboring interval of second pad 3121.The knot
Structure facilitates design and layout, while also facilitating connection external circuit.
Further, also referring to Fig. 5 and Fig. 6, as printed circuit board flat-plate transformer provided by the invention
A kind of specific embodiment, offers the second aperture on each second printed circuit board 31 in each second pad 3121, it is primary around
Group 20 further includes the seven root cutting needles 32 for being each passed through each second aperture and being weldingly connected with corresponding second pad 3121.Use contact pin
32 are weldingly connected with the second pad 3121 on each second printed circuit board 31, then can be by second on each stacking corresponding position
Pad 3121 is weldingly connected, and such as when making coil 40, the both ends of the coil 40 of each second printed circuit board 31 can be distinguished
It is connected from the second different pads 3121, and then the coil 40 of the second printed circuit board of multilayer 31 of each set secondary windings 30 is gone here and there
Connection.And each contact pin 32 passes through each corresponding second aperture of two sets of secondary windings 30, and two sets of secondary windings 30 are in parallel, connection
It is convenient, firm.
Further, also referring to Fig. 5 and Fig. 6, as printed circuit board flat-plate transformer provided by the invention
A kind of specific embodiment, the corresponding stretching of three root cuttings needle 32 at the two corners of 312 end of the second connecting plate and middle part are stacked
The second printed circuit board of multilayer 31 form whole one side and form second pin 33.To facilitate connection external circuit.Certainly,
In some other embodiment, it can be welded by the second pad 3121 and draw lead.
Further, also referring to Fig. 1 to Fig. 5, as printed circuit board flat-plate transformer provided by the invention
A kind of specific embodiment, magnetic core 10 include two and half magnets (not marking in figure) for mutually fastening setting, and fifty-fifty magnet includes U
Type frame and the magnetic guide post in U-shaped frame, two magnetic guide posts cooperatively form magnetic pole 12, and two U-shaped framves cooperatively form magnet frame 11.Make
Magnetic core 10 is formed with two and half magnet combinations, and the magnetic guide post of fifty-fifty magnet cooperatively forms magnetic pole 12, and two U-shaped framves cooperate shape
It is easy to assembly at magnet frame 11, while being also easily installed on armature winding 20 and secondary windings 30.
Further, two and half magnet dispensings are fixed, and are fixedly connected with two and half magnets with facilitating.
Further, also referring to Fig. 1 to Fig. 5, as printed circuit board flat-plate transformer provided by the invention
A kind of inner wall of the through-hole 45 formed on specific embodiment, armature winding 20 and secondary windings 30 is fixed with 12 dispensing of magnetic pole,
It is fixed conveniently, stablizes.
Further, also referring to Fig. 1 to Fig. 5, as printed circuit board flat-plate transformer provided by the invention
A kind of specific embodiment, the quantitative range of the first printed circuit board 21 are 6-12, each the second printing for covering secondary windings 30
The quantitative range of circuit board 31 is 5-10.Preferentially, the quantity of the first printed circuit board 21 is 6, and respectively covers secondary windings
The quantity of 30 the second printed circuit board 31 is 5.
Further, also referring to Fig. 1 to Fig. 5, as printed circuit board flat-plate transformer provided by the invention
A kind of specific embodiment, 40 quantity of coil of armature winding 20 and 40 ratio of number of coil of each set secondary windings 30 are 1.2:
1, with guarantee the printed circuit board flat-plate transformer have good reliability and stability, while have biggish power with
Greater efficiency, lesser loss.
Further, also referring to Fig. 1 to Fig. 5, as printed circuit board flat-plate transformer provided by the invention
A kind of specific embodiment, printed circuit board flat-plate transformer further include being wound on magnet frame 11 and being fixedly connected two and half magnetic
The insulating tape 15 of body.Setting insulating tape 15 is wound on magnet frame 11, can be convenient and two and half magnets are fixedly linked.
Further, the welding of each first pin 22 and the first pad 2121 can use Sn10Pb solder, and solder is consolidated
Fusing point is at 268 degree, and liquid fusing point is at 301 degree, the reliability of solder joint when guaranteeing Reflow Soldering (245 degree of maximum temperature), and then realizes
Printed circuit board flat-plate transformer good reliability.
Further, the welding of each contact pin 32 and the second pad 3121 can use Sn10Pb solder, the solid fusing point of solder
At 268 degree, liquid fusing point is at 301 degree, the reliability of solder joint when guaranteeing Reflow Soldering (245 degree of maximum temperature), and then realizes printing
Circuit board type flat-plate transformer good reliability.
The manufacture craft that first printed circuit board 21 enters the second printed circuit board 31 is as follows:
Substrate is set, the film is made on substrate, then drill, then carries out nog plate；After nog plate, drilling is carried out
Hole processing, then be surface-treated, carry out nog plate processing again later；Then press mold is carried out, then is exposed, is developed later,
Then it is surface-treated, then carries out graphics process；It after graphics process, carries out moving back film, then carries out route production, then be layered place
Reason, carries out nog plate, then carry out successively brownification later, and lamination, lamination process, deburring again, then successively drills again later,
Nog plate, hole processing, surface treatment, nog plate, press mold expose, develop, surface treatment, graphics process, move back film, route production, layering
Processing, nog plate, pad handle and around composing types.
Further, also referring to Fig. 1 to Fig. 5, as printed circuit board flat-plate transformer provided by the invention
The end face of a kind of specific embodiment, the first connecting plate 212 forms the print to the distance between the end face of the second connecting plate 312 H2
The length of printed circuit board formula flat-plate transformer；In the present embodiment, the end face to the end of the second connecting plate 312 of the first connecting plate 212
The distance between face H2 is 38.5mm；The height H3 of magnet frame 11 forms the height of the printed circuit board flat-plate transformer, magnet frame
11 height H3 is 32mm；The length H1 of magnet frame 11 forms the width of the printed circuit board flat-plate transformer, the length of magnet frame 11
Degree H1 is 21.5mm；So that the power of the printed circuit board flat-plate transformer can achieve 1500W, power is big, small in size.Into
One step, the width of the second connecting plate 312 and the equal length of magnet frame 11.
Further, also referring to Fig. 1 to Fig. 5, as printed circuit board flat-plate transformer provided by the invention
A kind of specific embodiment, two the first pins 22 on armature winding 20 are respectively formed 4,5 two terminals, on secondary windings 30
Three second pins 33 be respectively formed 1,2,3 three terminal.
In the present embodiment, the electrical parameter of the printed circuit board flat-plate transformer of production can achieve the parameter such as following table:
Printed circuit board flat-plate transformer electrical parameter
In upper table, 4-5 indicates that test lead is two the first pins 22, i.e., 4,5 terminals；1-2 indicates that test lead is 1,2 ends
Son；2-3 indicates that test lead is 2,3 terminals；N (4-5) indicates winding coil 40 the number of turns between 4,5 terminals, i.e. armature winding 20
40 the number of turns of coil；N (1-3) indicates 40 the number of turns of winding coil between 1,2,3 terminals, i.e. 40 the number of turns of coil of secondary windings 30.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (10)
1. printed circuit board flat-plate transformer, including magnetic core, armature winding and secondary windings, it is characterised in that: the primary
Winding includes the first printed circuit board of multilayer being stacked, and each first printed circuit board is including the first Circular Plate and by institute
The first connecting plate that the side of the first Circular Plate is extended is stated, first Circular Plate is equipped with coil, and the two of the coil
End extends on first connecting plate, the coil series connection of the first printed circuit board described in multilayer；The secondary windings includes layer
The second printed circuit board of multilayer of folded setting, each second printed circuit board is including the second Circular Plate and by second annulus
The second connecting plate that two sides of plate are extended, second Circular Plate is equipped with coil, and the both ends of the coil extend to institute
It states on the second connecting plate, the coil series connection of the second printed circuit board described in the multilayer of each secondary windings；First annulus
The centre bore of plate and the centre bore of second Circular Plate cooperatively form through-hole；There is the magnetic core cooperation to be inserted into the through-hole
Magnetic pole and magnet frame around the armature winding and the secondary windings, the magnetic pole is in the magnet frame, the magnetic pole
Both sides opposite with the magnet frame are connected respectively at both ends；First connecting plate and second connecting plate are located at described
The two sides of through-hole.
2. printed circuit board flat-plate transformer as described in claim 1, it is characterised in that: the secondary windings is in parallel
Two sets, two sets of secondary windings are respectively arranged on the two sides of the armature winding.
3. printed circuit board flat-plate transformer as described in claim 1, it is characterised in that: the diameter of the magnetic pole be greater than or
Equal to four times of each coil width.
4. printed circuit board flat-plate transformer as described in claim 1, it is characterised in that: the width of each coil is
5.5mm。
5. printed circuit board flat-plate transformer as claimed in claim 4, it is characterised in that: the cross section face of each coil
Product range is 1.0mm2~1.2mm2。
6. printed circuit board flat-plate transformer as described in any one in claim 1-5, it is characterised in that: each described first connects
Fishplate bar is equipped with the first pad of the two neighboring first printed circuit board coil of connecting.
7. printed circuit board flat-plate transformer as claimed in claim 6, it is characterised in that: each first connecting plate up to
Few two the first apertures, the armature winding further include be each passed through each first aperture and with corresponding first connecting plate
The first pin being fixedly linked, each coil of the armature winding, which is connected, to be formed the both ends of winding and draws respectively with two described first
Foot is electrical connected.
8. printed circuit board flat-plate transformer as described in any one in claim 1-5, it is characterised in that: second connection
Plate is equipped with seven the second pads；The two neighboring second printed circuit board coil is connected through correspondence second pad,
Seven the second pad settings are in a column, the setting of two neighboring second pad interval.
9. printed circuit board flat-plate transformer as claimed in claim 8, it is characterised in that: each second printed circuit board
On offer the second aperture in each second pad, the printed circuit board flat-plate transformer further include be each passed through it is each
Second aperture and seven root cutting needles being connected with corresponding second pad solder, each contact pin is across two sets of secondary
Each corresponding second aperture of winding.
10. printed circuit board flat-plate transformer as claimed in claim 9, it is characterised in that: second connecting plate end
Two corners at and corresponding three contact pins in middle part stretch out the second printed circuit board described in the multilayer being stacked and form entirety
One side and form second pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810760010.3A CN109065337A (en) | 2018-07-11 | 2018-07-11 | Printed circuit board flat-plate transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810760010.3A CN109065337A (en) | 2018-07-11 | 2018-07-11 | Printed circuit board flat-plate transformer |
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| Publication Number | Publication Date |
|---|---|
| CN109065337A true CN109065337A (en) | 2018-12-21 |
Family
ID=64815994
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810760010.3A Pending CN109065337A (en) | 2018-07-11 | 2018-07-11 | Printed circuit board flat-plate transformer |
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| Country | Link |
|---|---|
| CN (1) | CN109065337A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111091956A (en) * | 2019-12-27 | 2020-05-01 | 广州金升阳科技有限公司 | Current transformer and manufacturing method thereof |
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