CN110379604A - Low-frequency transformer and preparation method thereof - Google Patents
Low-frequency transformer and preparation method thereof Download PDFInfo
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- CN110379604A CN110379604A CN201910597977.9A CN201910597977A CN110379604A CN 110379604 A CN110379604 A CN 110379604A CN 201910597977 A CN201910597977 A CN 201910597977A CN 110379604 A CN110379604 A CN 110379604A
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
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Classifications
-
- 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
- H01F27/245—Magnetic cores made from sheets, e.g. grain-oriented
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F30/00—Fixed transformers not covered by group H01F19/00
- H01F30/02—Auto-transformers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F30/00—Fixed transformers not covered by group H01F19/00
- H01F30/06—Fixed transformers not covered by group H01F19/00 characterised by the structure
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Coils Or Transformers For Communication (AREA)
Abstract
The present invention provides a kind of low-frequency transformers and preparation method thereof, low-frequency transformer includes upper bed-plate, the magnetic core being set between the lower bottom base and the upper bed-plate, the skeleton that is sheathed on outside the magnetic core that lower bottom base and the lower bottom base are connected and fixed, and it is set around the coil outside the skeleton, the wedge-shaped impression for accommodating the magnetic core is provided on the lower bottom base, the shape of the wedge-shaped impression is adapted with the bottom shape of the magnetic core.Low-frequency transformer provided by the invention and preparation method thereof can not only be reduced volume, be mitigated product weight using the high magnetic core of the circuit form and use magnetic induction intensity of self coupling.And it is stronger that magnetic core can be made to connect with lower bottom base, it can be improved anti-vibration and impact resistance, while can effectively reduce loss, effectively improve the environmental suitability and reliability of the low-frequency transformer, reach military requirements, meets the test requirements document of GJB2829A-2013 and GJB360B-2009.
Description
Technical field
The invention belongs to technical field of electronic devices, are to be related to a kind of low-frequency transformer and its production side more specifically
Method.
Background technique
In circuit, transformer is widely used element, is voltage of transformation, electric current and the device of impedance.Low-frequency power
Transformer is one kind important in transformer, for converting voltage and transmission energy, can also be achieved the impedance matching between circuit,
There is buffer action in circuit.However current high power low-frequency transformer is usually the power supply transformation of vertical open structure
Device, volume is big, weight is big, reliability is low, and shock resistance and antivibration kinetic force are poor, and environmental suitability is poor, is unable to satisfy crowd
The demand of multi-field (such as aerospace military industry field).
Summary of the invention
The purpose of the present invention is to provide a kind of low-frequency transformers, to solve existing for low-frequency transformer in the prior art
Volume is big, weight is big, reliability is low, and the technical problem of shock resistance and antivibration kinetic force difference.
To achieve the above object, the technical solution adopted by the present invention is that: a kind of low-frequency transformer is provided, including lower bottom base,
The upper bed-plate that is connected and fixed with the lower bottom base, is sheathed on institute at the magnetic core being set between the lower bottom base and the upper bed-plate
The skeleton outside magnetic core is stated, and the coil being set around outside the skeleton, is provided on the lower bottom base for accommodating the magnetic core
Wedge-shaped impression, the shape of the wedge-shaped impression is adapted with the bottom shape of the magnetic core.
Further, the low-frequency transformer further includes tight for the lower bottom base to be connected and fixed with the upper bed-plate
Firmware, the upper bed-plate offer first through hole, and the lower bottom base offers fastener hole, and it is logical that the fastener passes through described first
Fastener hole described in Kong Bingyu is connected and fixed.
Further, the low-frequency transformer further includes for the upper bed-plate and the lower bottom base to be tightened fixed the
One band.
Further, the low-frequency transformer further includes for the magnetic core and the lower bottom base to be tightened fixed second
Band.
Further, the magnetic core includes the upper half magnetic core and lower half magnetic core for being symmetrical set and being mutually butted enclosing,
The skeleton includes the first skeleton and the second skeleton, and first skeleton offers the second through-hole, and second skeleton offers
Third through-hole, the both ends of the upper half magnetic core are plugged in respectively in second through-hole and the third through-hole, the lower half magnetic
The both ends of core are plugged in respectively in second through-hole and the third through-hole, and the coil includes first coil and the second line
Circle, the first coil are set around outside first skeleton, and second coil is set around outside second skeleton.
Further, the both ends of the first coil and second coil are respectively equipped with lead, are arranged on the skeleton
There are four copper tip, each lead is corresponded and is electrically connected with each copper tip respectively.
Further, the periphery of the coil is coated with High temperature-resistanadhesive adhesive tape.
Further, the junction of the lower bottom base and the magnetic core is provided with viscose glue.
Further, the coil is entwined using enamel covered wire, and the magnetic core is by silicon-steel sheet coiled around forming.
The present invention also provides a kind of production methods of low-frequency transformer, comprising the following steps:
Coil is set around outside skeleton, and skeleton is sheathed on outside magnetic core；
The magnetic core is fixed between lower bottom base and upper bed-plate, and the bottom of the magnetic core is made to be placed in lower bottom base
In wedge-shaped impression, and the upper bed-plate and the lower bottom base are connected and fixed；
Carry out dispensing processing in the junction of the lower bottom base and the magnetic core, and 120 DEG C ± 5 DEG C at a temperature of carry out
Heat cure 2~3 hours；
Low-frequency transformer is put into organic solution, 5~10min of vacuumize process.
The beneficial effect of low-frequency transformer provided by the invention and preparation method thereof is: compared with prior art, this hair
Bright low-frequency transformer,
One, by the way that the wedge-shaped impression for accommodating magnetic core, the shape of wedge-shaped impression and the bottom of magnetic core are arranged in lower bottom base
Shape is adapted, so that magnetic core can be well secured on lower bottom base, can not only be reduced volume, be mitigated product weight
Amount, and it is stronger that magnetic core can be made to connect with lower bottom base, can be improved anti-vibration and impact resistance, effectively improves
The environmental suitability and reliability of the low-frequency transformer, reach military requirements, meet GJB2829A-2013 and GJB360B-2009
Test requirements document.
Two, by using the circuit form of self coupling and using the high magnetic core of magnetic induction intensity, it can effectively reduce loss.
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 schematic perspective view of low-frequency transformer provided in an embodiment of the present invention；
Fig. 2 is another angle schematic perspective view of low-frequency transformer provided in an embodiment of the present invention；
Fig. 3 is the top view of lower bottom base provided in an embodiment of the present invention；
Fig. 4 is the main view of lower bottom base shown in Fig. 3；
Fig. 5 is the left view of lower bottom base shown in Fig. 3；
Fig. 6 is the main view of magnetic core provided in an embodiment of the present invention；
Fig. 7 is the explosive decomposition structure chart of low-frequency transformer provided in an embodiment of the present invention；
Fig. 8 is another angle explosive decomposition structure chart of low-frequency transformer provided in an embodiment of the present invention；
Fig. 9 is the top view of upper bed-plate provided in an embodiment of the present invention；
Figure 10 is the main view of upper bed-plate shown in Fig. 9；
Figure 11 is the circuit diagram of low-frequency transformer provided in an embodiment of the present invention.
Wherein, each appended drawing reference in figure:
10- lower bottom base；11- wedge-shaped impression；12- fastener hole；13- fluting；20- upper bed-plate；21- first through hole；22-
Body；23- boss；24- copper tip；30- magnetic core；31- upper half magnetic core；32- lower half magnetic core；The first skeleton of 41-；411- second is logical
Hole；The second skeleton of 42-；421- third through-hole；50- fastener；The first band of 60-；The second band of 70-；81- first coil；82-
Second coil.
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.
It is to be appreciated that term " length ", " width ", "upper", "lower", "front", "rear", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "top", "bottom" "inner", "outside" is that orientation based on the figure or position are closed
System, is merely for convenience of description of the present invention and simplification of the description, rather than the device or element of indication or suggestion meaning must have
Specific orientation is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.
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.
Also referring to Fig. 1 to Figure 10, now low-frequency transformer provided by the invention is illustrated.The present invention provides one
Kind low-frequency transformer, including lower bottom base 10, upper bed-plate 20, magnetic core 30, skeleton and coil.Wherein, upper bed-plate 20 and lower bottom base
10 are connected and fixed.Magnetic core 30 is set between lower bottom base 10 and upper bed-plate 20.Skeleton is sheathed on outside magnetic core 30, and coil is set around bone
Outside frame.The wedge-shaped impression 11 for accommodating magnetic core 30, the shape of wedge-shaped impression 11 and the bottom of magnetic core 30 are provided on lower bottom base 10
Portion's shape is adapted.By the setting of the wedge-shaped impression 11, it can not only reduce volume, mitigate product weight, but also can make
Magnetic core 30 connect stronger with lower bottom base 10, while can be improved anti-vibration and impact resistance, it is low to effectively improve this
The environmental suitability and reliability of frequency power transformer.
Low-frequency transformer provided by the invention, compared with prior art, by being arranged in lower bottom base 10 for accommodating magnetic core
The shape of 30 wedge-shaped impression 11, wedge-shaped impression 11 is adapted with the bottom shape of magnetic core 30, so that magnetic core 30 can be very
It is fixed on well on lower bottom base 10, can not only reduce volume, mitigate product weight, but also magnetic core 30 and lower bottom base can be made
10 connections are stronger, while can be improved anti-vibration and impact resistance, and the environment for effectively improving the low-frequency transformer is suitable
Answering property and reliability, reach military requirements, meet the test requirements document of GJB2829A-2013 and GJB360B-2009.
Further, a kind of specific implementation also referring to Fig. 1 to Fig. 8, as low-frequency transformer provided by the invention
Mode, low-frequency transformer further include fastener 50, and upper bed-plate 20 offers first through hole 21, and lower bottom base 10 offers fastener hole
12, fastener 50 passes through first through hole 21 and is connected and fixed with fastener hole 12, so that lower bottom base 10 be connect admittedly with upper bed-plate 20
Fixed, connection reliability is high.Preferably, in the present embodiment, which is bolt, which is threaded hole, is passed through
The cooperation of bolt and threaded hole, to realize being connected and fixed between lower bottom base 10 and upper bed-plate 20.Specifically, in the present embodiment
In, which further includes faced washer (not shown) and spring washer (not shown), screw bolt passes bullet
Spring washer, faced washer, first through hole 21 are simultaneously screwed together with threaded hole.The setting of the spring washer can play buffering
Effect so that upper bed-plate 20 connect with lower bottom base 10 it is stronger reliably.It should be noted that the upper bed-plate 20 and bottom
Connection type between seat 10 is not limited thereto, for example, the upper bed-plate 20 is under in other preferred embodiments of the invention
Pedestal 10 can also be realized by welding and is connected and fixed.
Further, a kind of specific implementation also referring to Fig. 1 to Fig. 8, as low-frequency transformer provided by the invention
Mode, low-frequency transformer further include for upper bed-plate 20 and lower bottom base 10 to be tightened the first fixed band 60, specifically, this
One end of one band 60 is passed through from the top of upper bed-plate 20, and the other end is passed through from the bottom of lower bottom base 10, thus by upper bed-plate 20
Tighten fixation with lower bottom base 10, by the setting of first band 60 so that upper bed-plate 20 connect with lower bottom base 10 it is stronger
Reliably.In the present embodiment, the quantity of first band 60 is one, it should be noted that the quantity of first band 60 is simultaneously
It is not limited to this, for example, in of the invention other are preferably implemented, first band 60 can also be it is a plurality of, for example, two or
Person three.
Further, a kind of specific implementation also referring to Fig. 1 to Fig. 8, as low-frequency transformer provided by the invention
Mode, low-frequency transformer further include for magnetic core 30 and lower bottom base 10 to be tightened the second fixed band 70, second band 70
One end passed through between magnetic core 30 and upper bed-plate 20, the other end is passed through from the bottom of lower bottom base 10, thus by lower bottom base 10 with
Magnetic core 30 is connected and fixed, and connection reliability is high.In the present embodiment, the quantity of second band 70 is two, should be illustrated
, the quantity of second band 70 is not limited thereto, for example, in of the invention other are preferably implemented, second band
70 can also be to be a plurality of, for example, three or four etc..Preferably, first band 60 and the second band 70 are stainless steel bundle
Band.
Further, a kind of specific implementation also referring to Fig. 1 to Figure 10, as low-frequency transformer provided by the invention
Mode, which includes pedestal 22 and two boss 23 extended from the both ends one bending of the pedestal 22, described
First through hole 21 is opened on the boss 23, specifically, the shape of the upper bed-plate 20 is in " several " font, the top of the magnetic core 30
It is arranged in upper bed-plate 20, connects even closer.
Further, as a kind of specific embodiment of low-frequency transformer provided by the invention, the upper bed-plate 20 is under
Pedestal 10 is made of aluminum alloy material, upper bed-plate 20 made of the ultralight aluminium alloy of high intensity by using aviation and bottom
Seat 10, overall weight is light, and intensity is high.
Further, a kind of specific implementation also referring to Fig. 1 to Fig. 5, as low-frequency transformer provided by the invention
Mode, the two sides of the lower bottom base 10 offer fluting 13, and the setting of the fluting 13 can not only mitigate product weight, Er Qieke
To facilitate tying up for the first band 60 and the second band 70.
Further, a kind of specific implementation referring to Figure 6 together to Fig. 8, as low-frequency transformer provided by the invention
Mode, magnetic core 30 include the upper half magnetic core 31 and lower half magnetic core 30 for being symmetrical set and being mutually butted enclosing.Specifically, on this
The shape of half magnetic core 31 and lower half magnetic core 32 is C-shaped.The upper half magnetic core 31 and lower half magnetic core 32 dock the magnetic being enclosed
Core 30 is in rectangle, with good window area and larger heat dissipation area, it is ensured that the whole temperature rise model of product.Skeleton
Including the first skeleton 41 and the second skeleton 42, the first skeleton 41 offers the second through-hole 411, and it is logical that the second skeleton 42 offers third
Hole 421, the both ends of upper half magnetic core 31 are plugged in from top to bottom respectively in the second through-hole 411 and third through-hole 421, lower half magnetic core 32
Both ends be plugged in the second through-hole 411 from the bottom up respectively with third through-hole 421, coil includes first coil 81 and the second line
Circle 82, first coil 81 is set around outside the first skeleton 41, and the second coil 82 is set around outside the second skeleton 42, assembles very simple
It is convenient.Preferably, the first skeleton 41 is I-shaped with the second skeleton 42, and first skeleton 41 and the second skeleton 42 use PET
(Polyethylene terephthalate, poly terephthalic acid class plastics) material is made, high temperature resistant and insulation performance
It is good, and there is good extensibility.
Further, a kind of specific reality also referring to Fig. 1 and Figure 11, as low-frequency transformer provided by the invention
Mode is applied, the present invention uses autocoupling type circuit design, and there are four copper tip 24, first coil 81 and the second coils for setting on skeleton
82 both ends are respectively equipped with lead (not shown), and each lead is corresponded and is electrically connected with each copper tip 24 respectively.It is preferred that
, the surface of the copper tip 24 is handled using nickel, so as to improve the corrosion resistance and solderability of copper tip 24
Energy.
Further, as a kind of specific embodiment of low-frequency transformer provided by the invention, the periphery of coil is coated
There is High temperature-resistanadhesive adhesive tape (not shown), the setting of the High temperature-resistanadhesive adhesive tape can satisfy performance resistant to high temperature.
Further, as a kind of specific embodiment of low-frequency transformer provided by the invention, lower bottom base 10 and magnetic core
30 junction is provided with viscose glue (not shown).The viscose glue is epoxy resin, can be reinforced between lower bottom base 10 and magnetic core 30
Connection dynamics, play the role of good antidetonation.
Further, as a kind of specific embodiment of low-frequency transformer provided by the invention, coil uses enamel-cover copper
Line is entwined, and the operating temperature of enamel covered wire is high, can be met performance resistant to high temperature, be wanted to reach the military temperature of transformer
It asks.
Further, as a kind of specific embodiment of low-frequency transformer provided by the invention, magnetic core 30 is by silicon steel sheet
It winds, with high magnetic flux density, low-loss, the working performance of low-frequency transformer, and silica gel piece can be greatlyd improve
Sturdy and durable, long service life effectively reduces production cost.Preferably, the silica gel piece with a thickness of 0.23mm.
Low-frequency transformer provided by the invention, compared with prior art, by being arranged in lower bottom base 10 for accommodating magnetic core
The shape of 30 wedge-shaped impression 11, wedge-shaped impression 11 is adapted with the bottom shape of magnetic core 30, so that magnetic core 30 can be very
It is fixed on well on lower bottom base 10, can not only reduce volume, mitigate product weight, but also magnetic core 30 and lower bottom base can be made
10 connections are stronger, while can be improved anti-vibration and impact resistance；And using the circuit form of self coupling and use magnetic
The high magnetic core of induction, can effectively reduce loss, effectively improves the environmental suitability and reliability of the low-frequency transformer, reaches
Military requirements meet the test requirements document of GJB2829A-2013 and GJB360B-2009.
The present invention also provides a kind of production methods of low-frequency transformer, comprising the following steps:
Coil is set around outside skeleton by step 1, and skeleton is sheathed on outside magnetic core 30.
Magnetic core 30 is fixed between lower bottom base 10 and upper bed-plate 20, and the bottom of magnetic core 30 is placed in down by step 2
In the wedge-shaped impression 11 of pedestal 10, and upper bed-plate 20 and lower bottom base 10 are connected and fixed.
Wherein, the shape of wedge-shaped impression 11 is adapted with the bottom shape of magnetic core 30, by the setting of the wedge-shaped impression 11,
Volume can not only be reduced, mitigate product weight, but also it is stronger that magnetic core 30 can be made to connect with lower bottom base 10, while energy
Anti-vibration and impact resistance are enough improved, the environmental suitability and reliability of the low-frequency transformer are effectively improved.
Step 3 carries out dispensing processing in the junction of lower bottom base 10 and magnetic core 30, and 120 DEG C ± 5 DEG C at a temperature of into
Row heat cure 2~3 hours.
Wherein, in step 3, by the junction dispensing in lower bottom base 10 and magnetic core 30, can effectively improve lower bottom base 10 with
Connection reliability between magnetic core 30 improves anti-seismic performance.Preferably, which is epoxide-resin glue.
Low-frequency transformer is put into organic solution by step 4,5~10min of vacuumize process.
Wherein, in step 4, organic solution can be paint solution, handled by vacuum paint dipping, can effectively reduce loss, together
When can be improved anti-vibration and the impact resistance of low-frequency transformer, on the other hand reinforce low-frequency transformer environmental suitability and
Reliability can reach military requirements.
The production method of low-frequency transformer provided by the invention, compared with prior art, by the way that magnetic core 30 to be placed in down
In the wedge-shaped impression 11 of pedestal 10, and cooperates and carry out dispensing processing in the junction of lower bottom base 10 and magnetic core 30 and become low frequency
Depressor carries out vacuum paint dipping processing, to can not only reduce volume, mitigate product weight, but also can make magnetic core 30 under
Pedestal 10 connects stronger, while can be improved anti-vibration and impact resistance, effectively improves the ring of the low-frequency transformer
Border adaptability and reliability, reach military requirements, meet the test requirements document of GJB2829A-2013 and GJB360B-2009.
Further, a kind of specific embodiment as the production method of low-frequency transformer provided by the invention, step 2
Specifically includes the following steps:
Magnetic core 30 is fixed between lower bottom base 10 and upper bed-plate 20, and the bottom of magnetic core 30 is placed in by step 21
In the wedge-shaped impression 11 of lower bottom base 10.
Step 22, the second band 70 one end passed through between magnetic core 30 and upper bed-plate 20, the other end is from lower bottom base 10
Bottom passes through, so that lower bottom base 10 and magnetic core 30 are connected and fixed.
Step 23, fastener 50 pass through the first through hole 21 of upper bed-plate 20 and connect with the fastener hole 12 for being located at lower bottom base 10
It is fixed.
Step 24, the first band 60 one end passed through from the top of upper bed-plate 20, the other end is worn from the bottom of lower bottom base 10
It crosses, so that upper bed-plate 20 and lower bottom base 10 are tightened fixation.
Wherein, by the setting of the first band 60, the second band 70 and matching fastener 50, so that upper bed-plate 20, magnetic core
It connects stronger reliable between 30 and lower bottom base 10, can be improved anti-vibration and impact resistance, it is low to effectively improve this
The environmental suitability and reliability of frequency power transformer.
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. low-frequency transformer, it is characterised in that: including lower bottom base, the upper bed-plate being connected and fixed with the lower bottom base, be set to institute
The skeleton stating the magnetic core between lower bottom base and the upper bed-plate, being sheathed on outside the magnetic core, and be set around outside the skeleton
Coil is provided with the wedge-shaped impression for accommodating the magnetic core, the shape of the wedge-shaped impression and the magnetic on the lower bottom base
The bottom shape of core is adapted.
2. low-frequency transformer as described in claim 1, it is characterised in that: the low-frequency transformer further includes under will be described
The fastener that pedestal and the upper bed-plate are connected and fixed, the upper bed-plate offer first through hole, and the lower bottom base offers tightly
Solid hole, the fastener pass through the first through hole and are connected and fixed with the fastener hole.
3. low-frequency transformer as claimed in claim 2, it is characterised in that: the low-frequency transformer further includes for will be described
Pedestal and the lower bottom base tighten the first fixed band.
4. low-frequency transformer as described in claim 1, it is characterised in that: the low-frequency transformer further includes for by the magnetic
Core and the lower bottom base tighten the second fixed band.
5. low-frequency transformer as described in claim 1, it is characterised in that: the magnetic core includes being symmetrical set and being mutually butted
The upper half magnetic core and lower half magnetic core of enclosing, the skeleton include the first skeleton and the second skeleton, and first skeleton offers
Second through-hole, second skeleton offer third through-hole, and the both ends of the upper half magnetic core are plugged in second through-hole respectively
In the third through-hole, the both ends of the lower half magnetic core are plugged in respectively in second through-hole and the third through-hole, institute
Stating coil includes first coil and the second coil, and the first coil is set around outside first skeleton, second coil around
Outside second skeleton.
6. low-frequency transformer as claimed in claim 5, it is characterised in that: the both ends of the first coil and second coil
It is respectively equipped with lead, there are four copper tips for setting on the skeleton, and each lead corresponds respectively with each copper tip and electricity
Property connection.
7. low-frequency transformer as claimed in any one of claims 1 to 6, it is characterised in that: the periphery of the coil is coated with resistance to height
Warm adhesive tape.
8. low-frequency transformer as claimed in any one of claims 1 to 6, it is characterised in that: the company of the lower bottom base and the magnetic core
The place of connecing is provided with viscose glue.
9. low-frequency transformer as claimed in any one of claims 1 to 6, it is characterised in that: the coil is wound using enamel covered wire
It forms, the magnetic core is by silicon-steel sheet coiled around forming.
10. a kind of production method of such as described in any item low-frequency transformers of claim 1-9, it is characterised in that: including following
Step:
Coil is set around outside skeleton, and skeleton is sheathed on outside magnetic core；
The magnetic core is fixed between lower bottom base and upper bed-plate, and the bottom of the magnetic core is made to be placed in the wedge shape of lower bottom base
In groove, and the upper bed-plate and the lower bottom base are connected and fixed；
Carry out dispensing processing in the junction of the lower bottom base and the magnetic core, and 120 DEG C ± 5 DEG C at a temperature of carry out thermosetting
Change 2~3 hours；
Low-frequency transformer is put into organic solution, 5~10min of vacuumize process.
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| CN201910597977.9A CN110379604A (en) | 2019-07-04 | 2019-07-04 | Low-frequency transformer and preparation method thereof |
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| CN201910597977.9A CN110379604A (en) | 2019-07-04 | 2019-07-04 | Low-frequency transformer and preparation method thereof |
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Family
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Cited By (1)
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|---|---|---|---|---|
| CN113728404A (en) * | 2020-12-30 | 2021-11-30 | 深圳欣锐科技股份有限公司 | Inductor fixing device and power converter |
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