CN203721458U - High-frequency transformer - Google Patents
High-frequency transformer Download PDFInfo
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- CN203721458U CN203721458U CN201320886583.3U CN201320886583U CN203721458U CN 203721458 U CN203721458 U CN 203721458U CN 201320886583 U CN201320886583 U CN 201320886583U CN 203721458 U CN203721458 U CN 203721458U
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- iron core
- frequency transformer
- high frequency
- shaped iron
- winding
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Abstract
The utility model discloses a novel high-frequency transformer. The high-frequency transformer comprises an iron core and a winding. An insulated wire of the winding directly winds around the iron core, so that the high-frequency transformer is formed. According to the novel high-frequency transformer, the wire directly winds around the iron core, so that a coil holder is not needed, and the cost is saved. Meanwhile, due to the novel design, the magnetic flux of the transformer is increased, and the use quality of the high-frequency transformer is improved. According to the optimized improvement scheme, the protrusion and pit design is adopted, so that the risks of dislocation and magnetic saturation are avoided completely.
Description
Technical field
The utility model relates to magnetic element field, particularly a kind of transformer.
Background technology
In existing high frequency transformer, coil is all wrapped on transformer coil holder, and then iron core inserts in the cavity at transformer coil holder center again and is assembled into transformer finished products.The deficiency of this mode is, in the manufacture process of a high frequency transformer, conventionally need to be through tens roads thirty or forty procedure even, the complicated manual course of processing and all kinds of raw-material physical property make so, often cause very high refining losses to affect product quality, even cause a large amount of scrap products, common defective products phenomenon has: the coil holder of bakelite material is damaged, the Pin oxidation of carbon steel material, the Pins distortion causing around Pin is crooked, the coil holder baking distortion of plastic material, Pin is loosening, the wrongly installed position of iron core group of pairing causes sensibility reciprocal low, coil holder and iron core do not match and cause iron core to dock to have air gap and then cause sensibility reciprocal on the low side, core slackness, coil holder does not mate and causes Hi Pot defective products etc. with iron core.The problem that these in the industry cycle exist always, a large amount of uncontrollable invisible cost of causing to manufacturer both domestic and external, this makes the structure of transformer and the Improvement requirement that production operation method has urgency.
In addition, existing high frequency transformer is preventing in magnetic saturation, generally adopts center pillar to grind, and easily occurs damaged in reprocessing in enormous quantities and transportation.
Utility model content
The purpose of this utility model is for the problem of the various bad risks of existing high frequency transformer existence, and a kind of improved high frequency transformer is provided.
To achieve these goals, the utility model provides a kind of high frequency transformer, comprises iron core and winding, and winding is directly wrapped on iron core and forms by insulated conductor, thereby is assembled into high frequency transformer.
It should be noted that, no matter traditional high frequency transformer is any model, the interface of its pairing iron core is all plane, this structure easily causes assembling dislocation, and in structure, be all that side column and center pillar are isometric, therefore cannot be directly by insulated conductor on iron core, therefore, must make and insert again iron core group after winding and dress up transformer with coil holder.The utility model is directly wrapped in insulated conductor on iron core, thereby make, meets the high frequency transformer that uses needs; This mode is suitable for the iron core of various shapes, model, and therefore in the utility model, the concrete shape of iron core is not done concrete restriction.
Preferably, iron core is " ⊥ " shaped iron core, and insulated conductor is directly wrapped on " ⊥ " shaped iron core longitudinal axis and forms winding.
Preferably, also comprise the conducting magnet core shell of " ∩ " type, the conducting magnet core clamshell of " ∩ " type is on the longitudinal axis of " ⊥ " shaped iron core that has been wound around coil, with the closed magnetic path of iron core complete.
Preferably, the conducting magnet core shell of " ∩ " type and " ⊥ " shaped iron core fasten by projection with the mortar mouth of the corresponding depression of projection; Projection is arranged on the conducting magnet core shell of " ∩ " type, and mortar mouth designs on " ⊥ " shaped iron core; Or projection is arranged on " ⊥ " shaped iron core, mortar mouth designs on the conducting magnet core shell of " ∩ " type.Between the projection fastening and mortar mouth, can there is air gap.
Preferably, the chassis of " ⊥ " shaped iron core is provided with through hole, and the lead-out wire of winding is installed with the through hole of insulating sleeve from iron core chassis and draws, as the Pins use of socket joint circuit board.
Preferably, iron core comprises two " L " shaped iron cores, difference winding around on two " L " shaped iron cores, and so latter two " L " shaped iron core fastens from beginning to end and forms a complete high frequency transformer.It should be noted that, the conducting magnet core shell that two " L " shaped iron cores and above-mentioned " ⊥ " shaped iron core add " ∩ " type belongs to two kinds of implementations under the present utility model design, and its concrete structure is described in embodiment of the present utility model.In fact, the conducting magnet core shell that " ⊥ " shaped iron core adds " ∩ " type has also been recorded two kinds of different implementations in embodiment of the present utility model.
Preferably, at two middle dividing plates also with an insulation of " L " shaped iron core that snapping is good.
Preferably, in the high frequency transformer of two " L " shaped iron core structures of the present utility model, also comprise an insulating base, offer fairlead on insulating base, two good " L " shaped iron cores of snapping are fixed on insulating base, and high frequency transformer wiring is drawn from fairlead.
Preferably, in the high frequency transformer of two " L " shaped iron core structures of the present utility model, also comprise an insulation crust, insulation crust is all wrapped in the iron core and the insulating base that are fixed on insulating base wherein.
Preferably, the bottom of insulation crust offers line outlet groove, and the connecting lead wire of high frequency transformer is drawn from line outlet groove.
Preferably, the inner surface of the part of insulation crust bottom insulation base plate offers lead-in wire containing cavities, and at high frequency transformer, during with horizontal installation, then lead-in wire draws from line outlet groove via described lead-in wire containing cavities.
Therefore, the utility model beneficial effect is: high frequency transformer of the present utility model is directly wrapped in insulated conductor on iron core, by the docking of projection and mortar mouth, has avoided two dislocation risks that iron core assembly is not in place completely; Owing to not needing to use coil holder, provide cost savings.High frequency transformer magnetic flux of the present utility model is high, has promoted the service quality of high frequency transformer.
Accompanying drawing explanation
Fig. 1 is the structural representation of the conducting magnet core shell of embodiment mono-medium/high frequency transformer of the present utility model " ⊥ " shaped iron core and " ∩ " type.
Fig. 2 is the decomposition texture schematic diagram of embodiment mono-medium/high frequency transformer of the present utility model.
Fig. 3 is the package assembly schematic diagram of embodiment mono-medium/high frequency transformer of the present utility model.
Fig. 4 is the structural representation of the conducting magnet core of embodiment bis-medium/high frequency transformers of the present utility model " ⊥ " shaped iron core and " ∩ " type.
Fig. 5 is the decomposition texture schematic diagram of embodiment bis-medium/high frequency transformers of the present utility model.
Fig. 6 is the package assembly schematic diagram of embodiment bis-medium/high frequency transformers of the present utility model.
Fig. 7 is the structural representation of embodiment tri-medium/high frequency transformers of the present utility model " L " shaped iron core.
Fig. 8 is the decomposition texture schematic diagram of two " L " shaped iron cores of embodiment tri-medium/high frequency transformers of the present utility model.
Fig. 9 is the package assembly schematic diagram of two " L " shaped iron cores of embodiment tri-medium/high frequency transformers of the present utility model.
Figure 10 is the decomposition texture schematic diagram of embodiment tri-medium/high frequency transformers of the present utility model.
Figure 11 is that embodiment tri-medium/high frequency transformers of the present utility model assemble the schematic diagram that rear vertical type is installed.
Figure 12 is that embodiment tri-medium/high frequency transformers of the present utility model assemble the schematic diagram that rear lying type is installed.
Accompanying drawing explanation:
The conducting magnet core shell 3 of iron core 1, coil 2, " ∩ " type, " L " shaped iron core 4, dividing plate 5, insulating base 6, fairlead 7, insulation crust 8, line outlet groove 9, lead-in wire containing cavities 10, projection 11, mortar mouth 12, insulating tape 13, insulating sleeve 14.
Embodiment
In order to make auditor can further understand the purpose of this utility model, existing attached preferred embodiment is to be described in detail as follows, and the present embodiment is only for the technical solution of the utility model is described, and non-limiting the utility model.
embodiment mono-
This routine high frequency transformer as shown in FIG. 1 to 3, coil 2 is directly wrapped on iron core 1, iron core is " ⊥ " shaped iron core shape, during manufacture, dismountable being fixed on winding fixture in chassis of " ⊥ " shaped iron core, the longitudinal axis end of " ⊥ " shaped iron core can be synchronizeed and rotate with winding fixture, and the longitudinal axis that " ⊥ " shaped iron core is established is cylindrical, and chassis portion is circular.First coated insulation adhesive tape 13 on the center pillar of iron core, carry out the abundant insulation between iron core and enamelled wire, in manufacturing process, at longitudinal axis two ends, be coated at random margin tape, successively make on demand winding, winding is inner or be single winding or be many windings formation, during many windings, together with barricade width, require according to the rules at N1, N2 ... between Ns, carry out respectively insulating tape winding, the winding method of insulated conductor is identical with traditional method.
High frequency transformer also comprises the conducting magnet core shell 3 of " ∩ " type, and the conducting magnet core shell 3 of " ∩ " type is closed, and on the whole longitudinal axis that covers on " ⊥ " shaped iron core that has been wound around coil, the surface of winding 2 is wound with insulating tape 13.The top of the cylindrical longitudinal axis of " ⊥ " shaped iron core is provided with a projection 11, corresponding, and in the conducting magnet core shell 3 of " ∩ " type, corresponding place is provided with one and projection 11 corresponding mortar mouths 12.At the conducting magnet core shell 3 of " ∩ " type when iron core fastens, by projection 11 and mortar mouth 12 location.And, on chassis, offering lead-in wire line outlet, connecting line is worn insulating sleeve 14 in advance, then from through hole, draws, and therefore, does not have coil holder also can reach object and the function identical with coil holder completely.
In the utility model, by projection and mortar mouth, fasten, the wrongly installed position of the iron core group of can avoiding matching, and, by reserve air gap in projection, or in mortar mouth, place pad when transformer production, to prevent causing transformer magnetic saturation under large electric current.
The high frequency transformer that this is routine, leakage field is few, and magnetic flux is high, and electric current, at 7-50 milliampere, has improved the service efficiency of high frequency transformer.Existing high frequency transformer is preventing that effect is bad aspect magnetic saturation, and the utility model is by projection or put pad just can well address this problem in mortar mouth.
embodiment bis-
This its structure of routine high frequency transformer is similar to the high frequency transformer of embodiment mono-, as shown in Fig. 4～6, its difference is only, " ⊥ " shaped iron core is rectangular cylinder, the bottom of " ⊥ " shaped iron core is also rectangle, the conducting magnet core shell of " ∩ " type is not closed, but coordinates rectangular cylinder to be a shape, and the longitudinal axis of " ⊥ " shaped iron core is covered on wherein; And, during fastening, at the two ends of the conducting magnet core of " ∩ " type, be also provided with projection, on " ⊥ " shaped iron core chassis, be provided with mortar mouth accordingly; In addition, there is no lead wire outlet on chassis, lead-in wire is directly drawn from the side.Remainder is identical with embodiment mono-.
The high frequency transformer that this is routine, its function and benefit is suitable with embodiment mono-.
embodiment tri-
This routine high frequency transformer is as shown in Fig. 7～12, and iron core comprises difference winding around on 4, two " L " shaped iron cores of two " L " shaped iron cores, and so latter two " L " shaped iron core fastens from beginning to end and forms a complete high frequency transformer; Two middle dividing plates 5 with an insulation of " L " shaped iron core that snapping is good; Two good " L " shaped iron cores of snapping are fixed on insulating base 6, offer fairlead 7 on insulating base 6, and high frequency transformer wiring is drawn from fairlead 7; Whole iron core and insulating base 6 are all fixed in an insulation crust 8, and the bottom of insulation crust 8 is concordant with insulating base 6 bottoms, and insulation crust 8 is all wrapped in the iron core and the insulating base that are fixed on insulating base wherein; In the bottom of insulation crust 8, offer line outlet groove 9, the connecting lead wire of high frequency transformer is drawn from line outlet groove 9, insulation crust bottom offers lead-in wire containing cavities 10 with the inner surface of the part of insulating base, when high frequency transformer is installed with the form of droping to the ground, then lead-in wire draws from line outlet groove 9 via lead-in wire containing cavities 10.
This routine high frequency transformer has advantages of embodiment mono-and embodiment bis-equally, simultaneously, this routine high frequency transformer has been offered a plurality of line outlet grooves on insulation crust, and, coordinate lead-in wire containing cavities, both (as shown in figure 11) can be vertically installed, can lying type be installed by (as shown in figure 12) again, and can realize 360 degree of high frequency transformer and arbitrarily install.It should be noted that, in the prior art, facing high frequency transformer installing space extremely limited in the situation that, the high frequency transformer of existing same money cannot be realized simultaneously vertical, horizontal, three kinds of mounting meanss of lateral recumbent posture, now only has the high frequency transformer that changes other model, the sacrifice of being compelled to do to a certain degree in price or in electrical characteristic; This routine high frequency transformer possesses three kinds of mounting meanss simultaneously, can meet the needs of different situations, has strengthened the applicability of high frequency transformer.
Need statement, above-mentioned utility model content and embodiment are intended to prove the practical application of technical scheme that the utility model provides, and should not be construed as the restriction to protection range.Those skilled in the art are in spirit of the present utility model and principle, when doing various modifications, be equal to and replace or improve, as circle cited in specification, rectangle etc. are replaced to other special shape, or it is by specific term, as high frequency transformer etc. changes other appellation into, as common mode choke or PFC Choke etc.Protection range of the present utility model is as the criterion with appended claims.
Claims (10)
1. a high frequency transformer, comprises iron core (1) and winding (2), it is characterized in that: described winding (2) is directly wrapped on iron core (1) and is formed by insulated conductor, thereby is assembled into high frequency transformer.
2. high frequency transformer according to claim 1, is characterized in that: described iron core is " ⊥ " shaped iron core, and insulated conductor is directly wrapped on " ⊥ " shaped iron core longitudinal axis and forms winding.
3. high frequency transformer according to claim 2, it is characterized in that: the conducting magnet core shell (3) that also comprises " ∩ " type, the conducting magnet core shell (3) of described " ∩ " type covers on the longitudinal axis of " ⊥ " shaped iron core that has been wound around coil, with the closed magnetic path of iron core complete.
4. high frequency transformer according to claim 3, is characterized in that: the conducting magnet core shell (3) of described " ∩ " type and described " ⊥ " shaped iron core fasten by projection (11) with the mortar mouth (12) of the corresponding depression of projection;
Described projection is arranged on the conducting magnet core shell (3) of " ∩ " type, and described mortar mouth design is on " ⊥ " shaped iron core; Or described projection is arranged on " ⊥ " shaped iron core, described mortar mouth design is on the conducting magnet core shell (3) of " ∩ " type; Between the projection fastening and mortar mouth, can there is air gap.
5. high frequency transformer according to claim 4, is characterized in that: the chassis of described " ⊥ " shaped iron core is provided with through hole, and the lead-out wire of winding is installed with the through hole of insulating sleeve (14) from iron core chassis and draws, as the Pins use of socket joint circuit board.
6. high frequency transformer according to claim 1, is characterized in that: described iron core comprises two " L " shaped iron cores (4), difference winding around on two " L " shaped iron cores, and so latter two " L " shaped iron core fastens composition common mode choke from beginning to end; At two middle dividing plates (5) also with an insulation of " L " shaped iron core that snapping is good.
7. high frequency transformer according to claim 5, it is characterized in that: also comprise an insulating base (6), on described insulating base (6), offer fairlead (7), two good " L " shaped iron cores of snapping are fixed on described insulating base (6), and the lead-out wire of winding (2) is drawn from described fairlead (7).
8. high frequency transformer according to claim 7, is characterized in that: also comprise an insulation crust (8), described insulation crust (8) is all wrapped in the iron core and the insulating base that are fixed on insulating base wherein.
9. high frequency transformer according to claim 8, is characterized in that: the bottom of described insulation crust (8) offers line outlet groove (9), and the connecting lead wire of winding (2) is drawn from described line outlet groove (9).
10. high frequency transformer according to claim 9, it is characterized in that: described insulation crust bottom offers lead-in wire containing cavities (10) in the inside of insulating base, when the horizontal installation of transformer adopting, then lead-in wire draws from line outlet groove (9) via described lead-in wire containing cavities (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320886583.3U CN203721458U (en) | 2013-12-31 | 2013-12-31 | High-frequency transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320886583.3U CN203721458U (en) | 2013-12-31 | 2013-12-31 | High-frequency transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203721458U true CN203721458U (en) | 2014-07-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320886583.3U Expired - Fee Related CN203721458U (en) | 2013-12-31 | 2013-12-31 | High-frequency transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203721458U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104269252A (en) * | 2014-10-17 | 2015-01-07 | 湖南创一电子科技有限公司 | High-precision all-in-one soft magnetic core |
| CN106373735A (en) * | 2016-12-01 | 2017-02-01 | 山东电力设备有限公司 | High-frequency transformer |
| CN108962558A (en) * | 2018-07-17 | 2018-12-07 | 灯达（深圳）电器有限公司 | A kind of totally-enclosed high efficiency electronic transformer of iron core and preparation method thereof |
-
2013
- 2013-12-31 CN CN201320886583.3U patent/CN203721458U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104269252A (en) * | 2014-10-17 | 2015-01-07 | 湖南创一电子科技有限公司 | High-precision all-in-one soft magnetic core |
| CN106373735A (en) * | 2016-12-01 | 2017-02-01 | 山东电力设备有限公司 | High-frequency transformer |
| CN108962558A (en) * | 2018-07-17 | 2018-12-07 | 灯达（深圳）电器有限公司 | A kind of totally-enclosed high efficiency electronic transformer of iron core and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140716 Termination date: 20171231 |