CN209000570U - A kind of electric wire and transformer - Google Patents

Abstract

The utility model provides a kind of electric wire and transformer.Electric wire includes wire body and protective layer；It is outer or be wound in outside wire body that protective layer is coated on wire body, and protective layer is fitted closely with wire body, the temperature of the heatproof temperature of protective layer greater than electric wire wire body surface at work.Transformer includes winding made of electric wire coiling.The electric wire of the utility model is by way of winding or coating on the wire body of straight forming, so that the structure of electric wire is more compact, tensile characteristics are more preferable, it can be realized automated production simultaneously, so that the transformer of the winding made of the coiling of this electric wire has without doing additional casing, rubberizing processing, the coiling of winding is more neat, and the structure of transformer is more compact, it can be realized miniaturization, and be able to ascend the electrical quality of transformer.

Description

A kind of electric wire and transformer

Technical field

The utility model relates to cable fields, in particular to a kind of electric wire and transformer.

Background technique

High-frequency wire and transformer are the core and key components and parts of Switching Power Supply, country and international product safety standard pair Its performance and wire structure have strict requirements, wherein there is a requirement to be: " when two electric wires in wire component or an electric wire The unspecified angle between another conductive contact and mutual at 45 °~90 ° of angles, and bear electric wire stretching, then machinery should be provided Stress protection." in order to meet this requirement, existing technical solution is used to be covered on high-frequency wire and transformer wire leads If insulating sleeve, electric wire and transformer wire packet add reflexed adhesive tape or electric wire to add the method for margin tape.

But the electric wire of existing structure has following defects that

1. covering insulating sleeve on wire leads adds barricade: such method is reliable, but will affect base below Winding displacement flatness and increase line backpack body product, will affect the EMC characteristic of Switching Power Supply.Simultaneously as existing electric wire and transformer electricity The full-automatic production equipment of line can't solve the production that the continuous and automatic of insulating sleeve is covered on wire leads at present Movement causes electric wire and transformer electric wire can not automated production, it is necessary to using the handwork of substep.

2. line packet adds magnetic core gum: magnetic core must gum, process is relatively time-consuming when gum, production efficiency the, hand-made, work Skill consistency is poor, is difficult to manage, can not automated production.

3. line packet adds reflexed adhesive tape: reflexed adhesive tape must be mounted to meet safety creepage distance.Reflexed adhesive tape by pasting manually Dress, reflexed adhesive tape easily walk in winding process, and process consistency is poor, is difficult to manage, can not automated production.

Utility model content

In view of this, providing one kind can automate the purpose of this utility model is to overcome deficiency in the prior art Production, high-efficient, stable product quality electric wire and transformer.

The utility model provides following first technical solution:

A kind of electric wire, including wire body and protective layer；

The protective layer is coated on outside the wire body or is wound in outside the wire body, and the protective layer and institute It states wire body to fit closely, the heatproof temperature of the protective layer is greater than the electric wire wire body surface at work Temperature.

As the further alternative scheme to above-mentioned electric wire, the protective layer is flexiplast layer.

While flexiplast layer can form good protection to wire body, additionally it is possible to guarantee electric wire still and have compared with Good flexibility makes it have preferable bending, winding characteristic.

As the further alternative scheme to above-mentioned electric wire, the protective layer is formed by plastic straps spiral winding, The plastic straps are smooth surface on one side, and another side is glue surface, and the glue surface is fitted in the wire body surface.

Enable to plastic straps can be with electric wire when winding on wire body towards wire body winding by glue surface Ontology fits closely, and is effectively prevented protective layer and loosens on wire body, so that protective layer is more securely wrapped in electric wire On ontology.

As the further alternative scheme to above-mentioned electric wire, when the plastic straps described in spiral winding, by the modeling Material strip body is wound on the wire body after being tensioned to generation deformation.

Plastic straps have certain elastoplasticity, by tense deform, on being wound in wire body after elastic recovery, So that simultaneously lock ring closely, is reliably bonded outside wire body with wire body for plastic straps locking.

As the further alternative scheme to above-mentioned electric wire, the mobile edge of wire body edge own axes is certainly Body axis rotation, so that the plastic straps are continuously wrapped on the wire body.

Plastic straps can wind on a roll body, and the unwrapping wire pulling force of roll body can be to meet plastic straps to occur The power of deformation.When wire body rotation plastic straps are wrapped on wire body, are moved when wire body is in rotation When, plastic straps are spirally wrapped on wire body, and the winding of plastic straps is simpler.

As the further alternative scheme to above-mentioned electric wire, using the wire body as core bar, by the protective layer Material be coated in outside the wire body by way of extrusion, and moved along own axes by the wire body so that The material of extrusion is coated in the wire body surface.

Directly protective layer is coated in outside wire body by way of extrusion molding, with the movement of wire body, will be coated Molding electric wire pulls out, and is equivalent to and directly protection sleeve pipe is molded on wire body, reduce production process, improve production Efficiency optimizes assembly effect.

As the further alternative scheme to above-mentioned electric wire, the wire body is insulation cable.

Electric wire is enabled to good insulating properties as wire body using insulation cable and is had good anti- Interference characteristic.

As the further alternative scheme to above-mentioned electric wire, the electric wire is three layer insulation wire.

The dielectric strength of three layer insulation wire is high, asks the safe voltage that can bear 3000V AC any two layers.

The utility model provides following second technical solution:

A kind of transformer, the transformer include winding made of above-mentioned electric wire coiling.

As the further alternative scheme to above-mentioned transformer, after the electric wire is closely wound on the transformer It directly leads out.

Transformer includes multi-layer winding, and the winding of different layers can use the electric wire of different size, the winding of different layers Winding direction can be different, and the parameter according to transformer is configured winding.And the winding of the transformer using said wires It can directly be drawn in electric wire after coiling finishes, so that the production of transformer is simpler, structure is more succinct.

The electric wire and transformer of the utility model have the advantages that

The electric wire of the utility model is by way of winding or coating on the wire body of straight forming, so that the knot of electric wire Structure is more compact, and tensile characteristics are more preferable, while can be realized automated production, so that the winding made of the coiling of this electric wire Transformer has without doing additional casing, rubberizing processing, and the coiling of winding is more neat, and the structure of transformer is more compact, The setting that the barricade on transformer can be cancelled when electric wire to be applied on transformer simultaneously, than being become with enameled wire coiling tradition The volume of depressor reduces 1/2, and weight about reduces 2/3, can greatly save material and processing charges, realizes the small-sized of transformer Change, and is able to ascend the electrical quality of transformer.

For enable the above objects, features, and advantages of the utility model become apparent from it is understandable, preferred embodiment is cited below particularly, And cooperate appended attached drawing, it is described below in detail.

Detailed description of the invention

It, below will be to use required in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment Attached drawing be briefly described, it should be understood that the following drawings illustrates only some embodiments of the utility model, therefore should not be by Regard the restriction to range as, for those of ordinary skill in the art, without creative efforts, may be used also To obtain other relevant attached drawings according to these attached drawings.

Fig. 1 shows a kind of structural schematic diagram of electric wire provided by the embodiment of the utility model；

Fig. 2 shows the structural schematic diagrams of another electric wire provided by the embodiment of the utility model；

Fig. 3 shows the schematic diagram of existing transformer；

Fig. 4 shows the structure chart of existing transformer；

Fig. 5 shows a kind of schematic diagram of transformer provided by the embodiment of the utility model；

Fig. 6 shows a kind of structure chart of transformer provided by the utility model.

Icon: 1- electric wire；11- wire body；12- protective layer.

Specific embodiment

Hereinafter, the various embodiments of the utility model will be described more fully in conjunction with attached drawing.The utility model can have There are various embodiments, and can adjust and change wherein.Therefore, specific embodiment reference being shown in the accompanying drawings is more Describe the utility model in detail.It should be understood, however, that: it is practical new herein there is no the various embodiments of the utility model are limited to The intention of the specific embodiment of type, but the utility model should be interpreted as covering the various embodiments for falling into the utility model All adjustment, equivalent and/or optinal plan in spirit and scope.Description taken together with the accompanying drawings, same reference numerals Same element.

It hereinafter, can the term " includes " used in the various embodiments of the utility model or " may include " instruction institute Function, operation or the presence of element of utility model, and the increase of one or more functions, operation or element is not limited. In addition, term " includes ", " having " and its cognate are meant only to indicate as used in the various embodiments of the utility model Special characteristic, number, step, operation, the combination of element, component or aforementioned item, and be understood not to exclude one first Or more other feature, number, step, operation, element, component or aforementioned item combined presence or increase one or more A feature, number, step, operation, element, component or aforementioned item combination a possibility that.

In the various embodiments of the utility model, states "or" or " at least one of A or/and B " includes while arranging Any combination of text out or all combinations.For example, statement " A or B " or " at least one of A or/and B " may include A, can It including B or may include A and B both.

The statement (" first ", " second " etc.) used in the various embodiments of the utility model can be modified various Various constituent element in embodiment, but respective sets can not be limited into element.For example, the above statement is not intended to limit the element Sequence and/or importance.The above statement is only used for the purpose for differentiating an element and other elements.For example, first uses Family device and second user device indicate different user device, although the two is all user apparatus.For example, practical not departing from In the case where the range of novel various embodiments, first element is referred to alternatively as second element, and similarly, second element can also quilt Referred to as first element.

It should also be noted that if a constituent element ' attach ' to another constituent element by description, it can be by the first composition member Part is directly connected to the second constituent element, and " connection " third can form between the first constituent element and the second constituent element Element.On the contrary, when a constituent element " being directly connected to " is arrived another constituent element, it will be appreciated that in the first constituent element And second third constituent element is not present between constituent element.

The term used in the various embodiments of the utility model is used only for the purpose of describing specific embodiments and simultaneously It is not intended to the various embodiments of limitation the utility model.As used herein, singular is intended to also include plural form, unless Context is expressly otherwise indicated.Unless otherwise defined, otherwise all terms used herein (including technical term and science Term) there is contain identical with the various normally understood meanings of embodiment one skilled in the art of the utility model Justice.The term (term such as limited in the dictionary generally used) be to be interpreted as have in the related technical field The identical meaning of situational meaning and Utopian meaning or meaning too formal will be interpreted as having, unless this It is clearly defined in the various embodiments of utility model.

Embodiment 1

The present embodiment provides a kind of transformers, including the winding turned to by electric wire 1.

As shown in Figure 1, electric wire 1, including wire body 11 and protective layer 12, protective layer 12 and wire body 11 closely paste It closes, the heatproof temperature of protective layer 12 is greater than the temperature on 11 surface of wire body at work of electric wire 1.

It is above-mentioned, mechanical stress protection is provided to electric wire 1 by protective layer 12, to realize the physical isolation of electric wire 1.Using electricity The winding protected seam 12 that line 1 turns to is fully wrapped around, especially for the secondary windings of the transformer turned to using electric wire 1 Protected seam 12 is fully wrapped around, and there is no the security risks in national international product safety standard.

Simultaneously because fitting closely between protective layer 12 and wire body 11, enables to the electric wire for being covered with protective layer 12 1 has neat shape, can fitly arrange when turning to winding, and EMI consistency is good, the electric wire 1 of the different circles of winding Between interfere with each other it is weaker so that the transformer of the winding turned to using this electric wire 1 has more stable transformation Characteristic.

The electric wire 1 for adding protective layer 12 does not need plus barrier layer is to guarantee safe edge away from without in grade spaced winding insulating cement Belt.The setting that the barricade on transformer can be cancelled when electric wire 1 to be applied on transformer, it is more traditional than with enameled wire coiling The volume of transformer reduces 1/2, and weight about reduces 2/3, can greatly save material and processing charges.

Protective layer 12 is cylindrical, and protective layer 12 can be by being coated on outside wire body 11 or being wound in wire body 11 Outside, it fits closely and fixes with the realization of wire body 11, and wrap 12 energy of protective layer to outside wire body 11 in this way It enough realizes automated production, can be improved production efficiency.

The heatproof temperature of protective layer 12 should be greater than the temperature on 11 surface of wire body at work of electric wire 1, that is, be greater than The temperature on transformer 11 surface of wire body at work guarantees transformation to guarantee the stable structure of the protective layer 12 of electric wire 1 The safety of device work.

Further, protective layer 12 is flexiplast layer.Flexiplast layer can form good guarantor to wire body 11 While shield, additionally it is possible to which guaranteeing electric wire 1 still has preferable flexibility, makes it have preferable bending, winding characteristic.

In the present embodiment, protective layer 12 is formed by plastic straps spiral winding, plastic straps spiral with body in winding There is the part of overlapping between the adjacent turn of circle, to form continuous, seamless protective layer 12.

Plastic straps are the thin layer band that thickness is less than 0.5mm, can be by meeting above-mentioned resistance requirements and having flexible Plastics are made, such as can be by PE (polyethylene), PP (polypropylene), PVC (polyvinyl chloride) or PC (polycarbonate resin) material system At.

In the present embodiment, plastic straps are glass tape, and plastic straps are smooth surface on one side, and another side is glue surface, glue surface fitting On 11 surface of wire body, smooth surface is surface exposed in electric wire 1.

Enable to plastic straps can be with when winding on wire body 11 towards the winding of wire body 11 by glue surface Wire body 11 fits closely, and is effectively prevented protective layer 12 and loosens on wire body 11, so that protective layer 12 is more firm Ground is wrapped on wire body 11, while the plastic straps adjacent turn of spiral winding is mutually bonded in overlapping, can be further Guarantee the continuity of 12 structure of protective layer.

Spiral winding of the plastic straps on wire body 11 can carry out automated production by numerical control winding machine.Pass through Numerical control winding machine drives the mobile edge own axis of 11 edge own axes of wire body, so that plastic straps are continuous Be wrapped on wire body 11.The movement speed Ying Yuqi velocity of rotation of wire body 11 matches, so that plastic straps The Shi Lianxu and uniformly on being wound in wire body 11, that is, wire body 11 does at the uniform velocity move and uniform rotation simultaneously.

In spiral winding plastic straps, plastic straps is tensioned to after generating deformation and is wound on wire body 11.Modeling Material strip body is wound on a roll body, and the unwrapping wire pulling force of the roll body is because satisfaction can tense plastic straps and make its deformation.When Wire body 11 is wrapped in plastic straps on wire body 11 when rotating, when being moved when wire body 11 is in rotation, modeling Material strip body is spirally wrapped on wire body 11, and the winding of plastic straps is simpler.With the shifting of wire body 11 It is dynamic, plastic straps are pulled out from roll body, and is wrapped on wire body 11.

As shown in Fig. 2, in another embodiment, protective layer 12 is directly coated in wire body 11 by way of extrusion molding Outside, with the movement of wire body 11, the electric wire 1 of coating molding is pulled out, is equivalent to and protection sleeve pipe is directly molded over electric wire On ontology 11.

Specifically, protective layer 12 is squeezed out by extruder, material is plastic material, has preferable fire-retardant, tensile characteristics, Preferable protection can be formed to electric wire 1 applied on wire body 11, so that electric wire 1 has preferable tensile characteristics.

Extruder includes power section and heating part, and power section can be screw rod, and heating part can add for electromagnetism Hot device.Plastics materials enter extruder from hopper, are forward conveyed in the case where the rotation of screw rod drives, material is forward During movement, the heating, the shearing of screw rod bring and compression for receiving barrel make material melts, it is thus achieved that Variation between the tri-state of glassy state, elastomeric state and viscous state.

The case where being pressurizeed, so that extrusion cavities of the material in viscous state by extruder, then according to extrusion Hole and become cross section and the similar non-individual body of extrusion cavities profile, then cooling and shaping forms glassy state, needed for thus obtaining plus The product of work.

Wire body 11 transmits in the extrusion cavities on extruder, by extruder squeeze out material flow to wire body 11 with In extrusion cavities, extruded material in a tubular form, thus formed shape it is identical with the profile of extrusion cavities and it is internal be equipped with wire body 11 Electric wire 1.

The protective layer 12 (casing) of electric wire 1 is molded directly on wire body 11, is seamlessly connected therebetween, protective layer 12 Position on wire body 11 is more fixed, and structural compactness, the tensile characteristics of electric wire 1 are more preferable.Simultaneously by protective layer 12 Production, the two steps production nested with wire body 11 of protective layer 12 concentrate in a step, reduce production process, improve production Efficiency.

Wire body 11 is taken out of with mobile with by the extruded material of molding on it, can be by the mobile speed of wire body 11 Degree is arranged to match with the extruded velocity of extruder, to realize that wire body 11 agrees with the good of extruded material.

In the present embodiment, wire body 11 is insulation cable.Electricity is enabled to as wire body 11 using insulation cable Line 1 is with good insulating properties and has good noiseproof feature.

Further, electric wire 1 is three layer insulation wire.The dielectric strength of three layer insulation wire is high, and (any two layers ask can be held By the safe voltage of 3000V AC).

The winding of transformer is formed using 1 coiling of electric wire.Transformer includes multi-layer winding, and the winding of different layers can use The winding direction of the electric wire 1 of different size, the winding of different layers can be different, and the parameter of zero foundation transformer sets winding It sets.

And can directly be drawn in electric wire 1 after coiling finishes using the winding of the transformer of said wires 1, without doing Additional casing or rubberizing processing, while the setting of the barrier wall structure on transformer can also be cancelled, so that transformer can be automatic Metaplasia produces, production technology is further simplified, reduces manpower consumption, improving production efficiency, and for this body structure of transformer, energy Enough so that the structure of transformer is more succinct and compact, volume of transformer is smaller.

Hereafter with a 100-240V, 50/60Hz input, for the Switching Power Supply of 12VDC2A output, wherein transformer Schematic diagram and structure chart change as follows:

Fig. 3 shows the schematic diagram of existing transformer, wherein zero indicates that Same Name of Ends, indicate exit casing, it is known that Casing is respectively arranged on two exits of the output end of existing transformer, production technology is complicated, and cannot achieve automation.

Fig. 4 shows the structure chart of existing transformer, and two layers of coiling of the output end of transformer needs reflexed adhesive tape, And the width of gummed paper and the same money of skeleton, production complexity cannot achieve automation, and the reflexed quality of gummed paper is difficult to control, and is easy Cause the quality of transformer unstable.

Fig. 5 shows a kind of schematic diagram of transformer, winding made of the electric wire 1 using this programme, wherein zero indicates Same Name of Ends, indicate exit casing.It is known that the electric wire 1 of the output end of this transformer can be directly led out, without Casing is protected.

Fig. 6 shows a kind of structure chart of transformer, and electric wire 1 can be directly used and carry out coiling, without carrying out reflexed glue Tape handling, structure is simpler, coiling step is more succinct.

Can be seen that by above-mentioned design example can efficiently solve change using the electric wire 1 and transformer of this programme The technical issues of depressor volume is big, unstable quality and production cannot achieve automation.

In all examples being illustrated and described herein, any occurrence should be construed as merely illustratively, without It is as limitation, therefore, other examples of exemplary embodiment can have different values.

It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.

Above-described embodiments merely represent several embodiments of the utility model, the description thereof is more specific and detailed, But it cannot be understood as the limitations to the scope of the utility model.It should be pointed out that for the ordinary skill of this field For personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these belong to this The protection scope of utility model.

Claims (10)

1. a kind of electric wire, which is characterized in that including wire body and protective layer；

The protective layer is coated on outside the wire body or is wound in outside the wire body, and the protective layer and the electricity Line ontology fits closely, and the heatproof temperature of the protective layer is greater than the temperature on the electric wire wire body surface at work Degree.

2. electric wire according to claim 1, which is characterized in that the protective layer is flexiplast layer.

3. electric wire according to claim 2, which is characterized in that the protective layer is formed by plastic straps spiral winding, institute State plastic straps is smooth surface on one side, and another side is glue surface, and the glue surface is fitted in the wire body surface.

4. electric wire according to claim 3, which is characterized in that when the plastic straps described in spiral winding, by the plastics Band body is wound on the wire body after being tensioned to generation deformation.

5. electric wire according to claim 3, which is characterized in that the mobile edge itself of wire body edge own axes Axis rotation, so that the plastic straps are continuously wrapped on the wire body.

6. electric wire according to claim 1, which is characterized in that using the wire body as core bar, by the protective layer Material is coated in outside the wire body by way of extrusion, and is moved along own axes so that squeezing by the wire body Material out is coated in the wire body surface.

7. electric wire according to claim 1, which is characterized in that the wire body is insulation cable.

8. electric wire according to claim 2, which is characterized in that the electric wire is three layer insulation wire.

9. a kind of transformer, which is characterized in that the transformer include as described in any one of claim 1-8 electric wire coiling and At winding.

10. transformer as claimed in claim 9, which is characterized in that the electric wire is straight after being closely wound on the transformer Connect extraction.