CN207367756U

CN207367756U - Charge coil and charging unit

Info

Publication number: CN207367756U
Application number: CN201721200474.6U
Authority: CN
Inventors: 刘范; 刘衡; 谢光元
Original assignee: Shenzhen City Three Weiye Technology Co Ltd
Current assignee: Shenzhen City Three Weiye Technology Co Ltd
Priority date: 2017-09-15
Filing date: 2017-09-15
Publication date: 2018-05-15
Anticipated expiration: 2027-09-15

Abstract

The utility model provides a kind of charge coil and charging unit, charge coil includes the spiral winding formed by insulated conductor coiling, a circle first coil at its center is provided with the charge coil and is set around the second coil of multiturn of the first coil periphery, second coil of multiturn is in same plane, the first coil is at least partly extended to outside the plane from the plane, the cross section of the insulated conductor is in flat, twice of the substantially described insulated conductor thickness of thickness of the charge coil.The cross section of the insulated conductor is in flat, thickness is smaller, twice of the substantially described insulated conductor thickness of the thickness of the charge coil, realizes the slimming design of the charge coil, is conducive to the Miniaturization Design of the charging unit using the charge coil.

Description

Charge coil and charging unit

Technical field

Charge coil field is the utility model is related to, more particularly to a kind of charge coil and charging unit.

Background technology

This part intends to provides background or upper and lower for the specific embodiment of the present utility model stated in claims Text.Description herein recognizes it is the prior art not because not being included in this part.

Wireless charging device mainly includes charge coil, currently in order to being convenient for carrying, wireless charging device is sent out to miniaturization Exhibition, product miniaturization, certainly will need to handle coil slimming, to be integrated into the small space of product.

Utility model content

The utility model provides a kind of charge coil of slimming and includes the charging unit of the charge coil.

A kind of charge coil, including the spiral winding formed by insulated conductor coiling, are provided with position in the charge coil In its center a circle first coil and be set around the first coil periphery the second coil of multiturn, at second coil of multiturn In same plane, the first coil is at least partly extended to outside the plane from the plane, the horizontal stroke of the insulated conductor Section is in flat, twice of the substantially described insulated conductor thickness of thickness of the charge coil.

Further, the charge coil is single layer coil.

Further, the insulated conductor is enameled wire.

Further, the charge coil is rounded.

Further, the charge coil is in the rectangle for including circular arc chamfering.

Further, the radius of the circular arc chamfering is 2.4-6.3mm.

Further, the coil chamfer radius more remote with the charge coil centre distance are bigger.

Further, the first coil is provided with the first leading-out terminal, and second coil is provided with the second leading-out terminal, institute The extending direction of the first leading-out terminal is stated parallel to the plane.

Further, first leading-out terminal is set adjacent to second leading-out terminal.

A kind of charging unit, including the charge coil described in any one as described above.

Charge coil provided by the utility model is formed by the insulated conductor coiling, the cross section of the insulated conductor In flat, thickness is smaller, twice of the substantially described insulated conductor thickness of thickness of the charge coil, realizes institute The slimming design of charge coil is stated, is conducive to the Miniaturization Design of the charging unit using the charge coil.

Brief description of the drawings

Fig. 1 is the structure diagram for the charge coil that the utility model preferred embodiment provides.

Fig. 2 is the structure diagram of another embodiment of charge coil as shown in Figure 1.

Fig. 3 is the structure diagram of another embodiment of charge coil as shown in Figure 1.

Fig. 4 is the sectional view along II-II lines of charge coil as shown in Figure 1.

Main element symbol description

Charge coil	100、200、300
		First coil	110
Second coil	120
		First leading-out terminal	112、312
Second leading-out terminal	122、322
		Cross section	130
Side	131、132

Following embodiment will further illustrate the utility model with reference to above-mentioned attached drawing.

Embodiment

The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are without making creative work All other embodiments obtained, shall fall within the protection scope of the present invention.In the case where there is no conflict, following implementation Feature in example and embodiment can be mutually combined.

It should be noted that in the utility model, when a component is considered as with another component " being connected ", it Can be connected directly with another component or be indirectly connected by component placed in the middle and another component.

Unless otherwise defined, all of technologies and scientific terms used here by the article is led with belonging to the technology of the utility model The normally understood implication of technical staff in domain is identical.It is simply in the term used in the description of the utility model herein The purpose of description specific embodiment, it is not intended that in limitation the utility model.

The charge coil that the utility model embodiment is related to can be used for wireless charging device, the wireless charging device Can be that electronic equipment charges, the electronic equipment can be：Tablet computer, mobile phone, electronic reader, personal computer The terminal device such as (Personal Computer, PC), laptop, wearable device and electric automobile.

Referring to Fig. 1, the structure diagram of the charge coil 100 provided for the utility model preferred embodiment.It is described to fill Electric coil 100 includes the substantially rectangular spiral winding formed by insulated conductor coiling.The charge coil 100 is by described exhausted Edge conducting wire, which spirals, to be entwined, and is disc-shaped single layer coil, or flatwise coil.

Referring to Fig. 2, the structure diagram of another embodiment for charge coil 100 as shown in Figure 1.In this implementation In mode, the shape of charge coil 200 is not limited to substantially rectangular shown in Fig. 1, and the charge coil 200 is in the form of annular discs, Certainly, the charge coil 200 can also be other shapes, as long as wireless charging function can be realized.

As shown in Figure 1, the charge coil 100 is in the rectangle for including circular arc chamfering.The radius of the circular arc chamfering For 2.4-6.3mm.Further, the coil chamfer radius more remote with 100 centre distance of charge coil are bigger.I.e. apart from institute State that the nearer coil chamfer radius in 100 center of charge coil are smaller, apart from the coil chamfering of 100 center of charge coil farther out Radius is larger, and smaller or without gap so as to fulfill gap between adjacent windings, loop construction is compacter, more without wasting Material, advantageously reduce production cost.

A circle first coil 110 at its center is provided with the charge coil 100 and is set around the First Line Second coil of the peripheral multiturn of circle 110 120.As shown in Fig. 2, the charge coil 100 includes a circle first coil 110 and 3 circles the Two coil 120, it is to be understood that in practical applications, second coil 120 is not limited to 3 circles, can be according to coil work( Rate is adjusted.

Further, the first leading-out terminal 112 is provided with the first coil 110, second coil 120 is away from institute The position for stating 100 center of charge coil is provided with the second leading-out terminal 122, i.e., described second leading-out terminal 122 is arranged at the charging The outer rim of coil 100.First leading-out terminal 112 and second leading-out terminal 122 be used for the charge coil 100 with it is mutually powered-down The electric connection on road.Specifically, the end of first leading-out terminal 112 and second leading-out terminal 122 is respectively used to electrically connect Connect a conductive feed point.Wherein, the conductive feed point can be integrally formed with corresponding leading-out terminal or one independent Component.

Second coil of multiturn 120 is in same plane, and second leading-out terminal 122 is located in the plane.Due to The first coil 110 is located at the center of the charge coil 100, and needs to extend the first leading-out terminal 112, to realize The slimming of the charge coil 100, described 110 at least part of first coil are extended to outside the plane from the plane, The extending direction of first leading-out terminal 112 is parallel to the plane.

In the present embodiment, first leading-out terminal 112 and the 122 mutually adjacent setting of the second leading-out terminal, and described the One leading-out terminal 112 is parallel with the extending direction of second leading-out terminal 122.First leading-out terminal 112 and second outlet End 122 can be according to corresponding conductive feed point position adjustment outlet end position and extending direction.Referring to Fig. 3, to be as shown in Figure 1 The structure diagram of another embodiment of charge coil 100.In the present embodiment, the first leading-out terminal of charge coil 300 312 and second leading-out terminal 322 be located remotely from each other setting, extending direction is parallel to each other.It is understood that in other embodiment In, the first leading-out terminal 312 is not limited to be parallel to each other with 322 extending direction of the second leading-out terminal.

Referring to Fig. 4, the sectional view along II-II lines for charge coil 100 as shown in Figure 1.The insulated conductor Cross section 130 is in flat, and the length: width size of the cross section 130 is big.Specifically, in the present embodiment, the insulation Conducting wire is enameled wire.It is understood that in the other embodiment of the present embodiment, the insulated conductor is not limited to enamel-cover Line.Further, the cross section 130 is rectangle, and the cross section 130 includes two sides 131 being oppositely arranged and two The side 132 being oppositely arranged, and the side 131 is bigger than the size of the side 132.And the charge coil 100 is Stood with the insulated conductor opposite with the side 132 of adjacent cross sectional 130 around formation, i.e., the side 132 of described cross section 130 Set, ensure that the thickness of the charge coil 100 is related to the thickness of the insulated conductor cross section 130, due to the horizontal stroke Section 130 is in flat, and the length dimension of the cross section is more than the several times of width, so that the thickness of the charge coil 100 Spending size can be smaller.It is understood that in the other embodiment of the present embodiment, the cross section of insulated conductor is not limited to Rectangle, can also be the flat horizontal surfaces such as other polygons or ellipse, to realize that the slimming of the charge coil 100 designs.

Further, first leading-out terminal 112 extends to the plane from the 120 place plane of the second coil of multiturn Outside, the thickness of second coil of multiturn 120 is the thickness of the cross section 130, the first coil 110 extend the The thickness of one leading-out terminal 112 is the thickness of the cross section 130, first leading-out terminal 112 and second coil of multiturn 120 are stacked, twice of the substantially described insulated conductor thickness of thickness of the charge coil 100.

Charge coil 100 provided in this embodiment is formed by the insulated conductor coiling, the insulated conductor it is transversal Face is in flat, and thickness is smaller, twice of the substantially described insulated conductor thickness of thickness of the charge coil, is realized The slimming design of the charge coil 100, is conducive to the Miniaturization Design of the charging unit using the charge coil 100.

The foregoing is merely the embodiment of the utility model, it does not limit the scope of the patent of the present invention, all It is equivalent structure or equivalent flow shift made based on the specification and figures of the utility model, directly or indirectly uses In other related technical areas, it is equally included in the patent within the scope of the utility model.

Claims

1. a kind of charge coil, including the spiral winding formed by insulated conductor coiling, it is characterised in that in the charge coil It is provided with a circle first coil at its center and is set around the second coil of multiturn of the first coil periphery, the multiturn Second coil is in same plane, and the first coil is at least partly extended to outside the plane from the plane, described exhausted The cross section of edge conducting wire is in flat, and the thickness of the charge coil is twice of the insulated conductor thickness.

2. charge coil as claimed in claim 1, it is characterised in that the charge coil is single layer coil.

3. charge coil as claimed in claim 1, it is characterised in that the insulated conductor is enameled wire.

4. charge coil as claimed in claim 1, it is characterised in that the charge coil is rounded.

5. charge coil as claimed in claim 1, it is characterised in that the charge coil is in the rectangle for including circular arc chamfering.

6. charge coil as claimed in claim 5, it is characterised in that the radius of the circular arc chamfering is 2.4-6.3mm.

7. charge coil as claimed in claim 5, it is characterised in that more remote coil falls with the charge coil centre distance Angular radius is bigger.

8. charge coil as claimed in claim 1, it is characterised in that the first coil is provided with the first leading-out terminal, described Second coil is provided with the second leading-out terminal, and the extending direction of first leading-out terminal is parallel to the plane.

9. charge coil as claimed in claim 8, it is characterised in that first leading-out terminal is set adjacent to second leading-out terminal Put.

10. a kind of charging unit, it is characterised in that including the charge coil as described in claim 1-9 any one.