CN202126904U - Coil device of coil framework and wireless power transmission system - Google Patents
Coil device of coil framework and wireless power transmission system Download PDFInfo
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- CN202126904U CN202126904U CN2011201802393U CN201120180239U CN202126904U CN 202126904 U CN202126904 U CN 202126904U CN 2011201802393 U CN2011201802393 U CN 2011201802393U CN 201120180239 U CN201120180239 U CN 201120180239U CN 202126904 U CN202126904 U CN 202126904U
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Abstract
The utility model provides a coil device of a coil framework and a wireless power transmission system. The coil framework comprises a plurality of cylinder bodies with different diameters which are connected together in concentric circle mode. Every two adjacent cylinder bodies are spaced to form a containing space which forms coiling space for spirally winding of wires along the axial line direction of concentric circles. The coil device of the coil framework and the wireless power transmission system enables the wires to be wound orderly, and the error of inductance amount can be controlled within a small range.
Description
Technical field
The utility model relates to a kind of coil rack, reaches the coil device of wireless power transmission system.
Background technology
Realize that the wireless power transmission mainly is to adopt three kinds of technological means; It is the mode of electromagnetic induction, magnetic field coupled resonance and radio wave; Any realization wireless power technical scheme of transmission all needs a high performance emission of cover and a receiving coil apparatus, and this device is extremely important for the wireless power transmission system.
At present; The solution of the most ripe wireless power transmission is exactly to adopt the principle of electromagnetic induction; Change high frequency voltage into through low-frequency ac power and directly be added to the transmitting coil device 50HZ; The big electric current that changes at a high speed produces the electromagnetic field that changes at a high speed, and receiving coil places the magnetic field of transmitting coil will produce induced current, and energy just has been transferred to receiving terminal from transmitting terminal.In the process of whole power transfer, coil device plays crucial effects, the ERROR CONTROL of winding inductance quantity especially, and the design of its coil rack and line line method thereof directly influence the efficient and the stability of wireless power transmission system.
Current; Support wireless power electrons transmitted product can't become the main flow in market; Except technical bottleneck; Also exist some engineering roadblocks, the design of coil rack and line line thereof directly influence the efficient and the stability of wireless power transmission system, and this has fettered the volume production listing of wireless power transmission product greatly.
The utility model content
To the problem that exists in the correlation technique, the purpose of the utility model is to provide the coil device of a kind of coil rack, wireless power transmission system, so that the inductance value error can be controlled in the very little scope.
For realizing above-mentioned purpose; An aspect according to the utility model; A kind of coil rack is provided; Coil rack comprises and is the different a plurality of cylinders of diameter that the concentric circles mode links together, and every adjacent two cylinders are spaced apart to form receiving space, and receiving space constitutes the winding space that supplies wire rod to twine along concentrically ringed axis direction spiral.
Preferably, in these a plurality of cylinders, the minimum cylinder of diameter seal on its circumferencial direction, and the position disconnection of all the other cylinders on circumferencial direction separately carries out the transition to another receiving space for wire rod from a receiving space.
Preferably, the spacing between every adjacent two receiving spaces is identical, and the size of each receiving space is set to only hold the wire rod in a line footpath.
Preferably; A plurality of cylinders link together through L shaped connecting plate; L shaped connecting plate is made up of first connecting portion of the bottom that is located at said a plurality of cylinders and second connecting portion that extends from the bending of first connecting portion; First connecting portion extends along the direction of pointing to the minimum cylinder of diameter from the maximum cylinder of diameter, and offers first slot that supplies magnetic stripe to insert along its bearing of trend; Second connecting portion extends along the direction that is parallel to concentrically ringed axis, and radially outwards protrudes from the outer peripheral face of the maximum cylinder of diameter, and second connecting portion offers second slot that supplies magnetic stripe to insert along its bearing of trend.
Preferably, first slot and second slot are communicated with.
Preferably, wire rod is that the enamelled wire that independently insulate through multiply is stranded or work out.
On the other hand; The utility model also provides a kind of coil device of wireless power transmission system; Transmitting coil device and receiving coil apparatus with electromagnetic coupled; The interior diameter of diameter smallest circle cylindrical shell in the coil rack of transmitting coil device, the 1.1-1.3 that equals the interior diameter of diameter smallest circle cylindrical shell in the coil rack of receiving coil apparatus doubly.
Preferably, the coil rack of transmitting coil device and the coil rack of receiving coil apparatus are separately installed with L shaped magnetic stripe, and L shaped magnetic stripe is made up of the magnetic stripe that is inserted in respectively in first and second slots.
The beneficial effect of the utility model is; Because receiving space is to be made up of the different a plurality of cylinders of the diameter of arranged in concentric circles; And receiving space is arranged so that wire rod twines along concentrically ringed axis direction spiral, thereby makes that the wire rod winding is in good order, the inductance value error can be controlled in the very little scope.
Moreover; Coil rack has L shaped connecting plate, and first slot of offering on it and second slot make L shaped magnetic stripe can be installed on coil rack; Correspondingly; Have transmitting and receiving of this coil rack and be provided with L shaped magnetic stripe in the coil device, these " L " shape magnetic stripes can effectively prevent the magnetic field radiation of the electromagnetic field of transmitting coil generation when work to the system peripherals space, reduce leaking outside of the magnetic line of force; Make the magnetic line of force in magnetic field in emission and receiving coil space, concentrate distribution, improved the efficient of radio energy transmission system greatly.These " L " shape magnetic stripes have also brought the similar techniques effect to receiving coil apparatus.
Description of drawings
Fig. 1 is that the coil rack with transmitting coil is an example, shows the front view of coil rack;
Fig. 2 is the stereogram of Fig. 1 coil rack;
Fig. 3 is when the angle of coil rack bottom is seen, the stereogram of Fig. 1 coil rack;
Fig. 4 is the stereogram of Fig. 1 coil rack of seeing from the side;
Fig. 5 is that the coil rack with receiving coil is an example, shows the stereogram of this coil rack;
Fig. 6 is another stereogram of Fig. 5 coil rack.
Embodiment
Referring to Fig. 1-Fig. 4; The coil rack of the utility model comprises: a cylinder group that is made up of a plurality of cylinders 2; The diameter of these cylinders differs from one another and links together with concentrically ringed mode; Every adjacent two cylinders are spaced apart, and this receiving space is the winding space that holds wire rod to form receiving space, and receiving space is arranged so that wire rod twines along concentrically ringed axis direction spiral.The diameter of aforesaid cylinder differs from one another, and is meant between the overall diameter of cylinder between comparison each other or the interior diameter to compare each other.Fig. 2 illustrates the receiving space 211,212,213,214,215,216,217 of arranged in concentric circles, and the diameter of said receiving space 211,212,213,214,215,216,217 increases gradually.
Fig. 1-Fig. 4 also illustrates; The minimum cylinder 22 of diameter seals on its circumferencial direction; All the other cylinders break off on circumferencial direction separately; The A place is the open position of said all the other cylinders among Fig. 2, and when wound wire, wire rod can carry out the transition to another receiving space from a receiving space at this open position place.As optimal way; In the receiving space of above-mentioned formation; Spacing between every adjacent two receiving spaces is made as identical, and the size of each receiving space to be set to only to hold the wire rod in a line footpath stacked therein, stacked along the direction of said concentrically ringed axis.
In conjunction with Fig. 2-Fig. 4, this cylinder group 2 is linked together by L shaped connecting plate 4, and wherein, L shaped connecting plate 4 is made up of first connecting portion 44, second connecting portion 42.Fig. 3 illustrates the bottom that first connecting portion 44 is located at cylinder group 2, extend along the direction of pointing to the minimum cylinder 22 of diameter from the maximum cylinder 24 of diameter, and first connecting portion 44 offers first slot 46 along its bearing of trend; Fig. 3 also illustrates; Second connecting portion 42 is located on the outer peripheral face of the maximum cylinder 24 of diameter and outside protrusion radially on this outer peripheral face; The bearing of trend of second connecting portion 42 is to extend along the direction that is parallel to said concentrically ringed axis; Along this bearing of trend, second connecting portion 42 offers second slot 48.First slot 46 and second slot 48 are communicated with, and arrange that mutual vertically the magnetic stripe (soft magnetic bodies magnetic stripe) that inserts in these two slots forms L shaped magnetic stripe.
Stereogram in conjunction with the bottom surface of the front view of the coil rack shown in Fig. 1 and the coil rack shown in Fig. 3 also is provided with trip 8 on the periphery wall of the maximum cylinder 24 of diameter, trip 8 is near open position A place.Referring to Fig. 1-Fig. 3, on the internal perisporium of the minimum cylinder 22 of the diameter of coil rack, be provided with three convexities 6, in the time of need be by means of the automatic wound wire of machine, these three convexities 6 play the effect of fixed coil skeleton.
The coil rack of the utility model part that is formed in one comprises that all constituents of the formation coil rack of cylinder group 2, L shaped connecting plate 4, trip 8 and protruding 6 is formed as integral piece.
Further; Fig. 5-Fig. 6 is the sketch map that example shows coil rack with the receiving coil; The design of these two kinds of coil racks is identical, and difference is: the number of the receiving space that the interior diameter of cylinder is different, the concentric circles form is arranged is different, is not giving unnecessary details for simplicity.In Fig. 5-Fig. 6; Show the skeleton cylinder group 2 ' of this coil; First connecting portion 44 ' and second connecting portion 42 ' that connect the L shaped connector of cylinder group 2 ' are opened in first slot 46 ' of first connecting portion 44 ', are opened in second slot 48 ' of second connecting portion 42 '.The interior diameter (hereinafter to be referred as first internal diameter) that is used for the coil rack diameter smallest circle cylindrical shell of transmitting coil is greater than the interior diameter (second internal diameter) of the coil rack diameter smallest circle cylindrical shell that is used for receiving coil.As a kind of preferred implementation, first internal diameter, be second internal diameter 1.1-1.3 doubly.
Can find out also that from Fig. 1-6 L shaped connecting plate 4 is around above-mentioned concentrically ringed axis separation; First connecting portion 44,44 ' of L shaped connecting plate flushes with the bottom of cylinder group 2; Second connecting portion 42,42 ' flushes with the top of cylinder group 2.
On the other hand; The utility model also provides a kind of coil device of wireless power transmission system; Transmitting coil device and receiving coil apparatus with electromagnetic coupled, the coil rack of transmitting coil device and the coil rack of receiving coil apparatus are the coil rack of the utility model.As a kind of execution mode, the interior diameter of diameter smallest circle cylindrical shell in the coil rack of transmitting coil device, for the 1.1-1.3 of the interior diameter of the coil rack diameter smallest circle cylindrical shell that is used for receiving coil doubly.The coil rack of transmitting coil device and the coil rack of receiving coil apparatus are separately installed with L shaped magnetic stripe; L shaped magnetic stripe is made up of the magnetic stripe that is inserted in respectively in first and second slots 46,48; Said L shaped magnetic stripe in the radial direction of coil rack (promptly; The radial direction of cylinder) goes up across all receiving spaces and being parallel to the axis direction of coil rack (that is the axial direction of cylinder) and go up thickness across the maximum cylinder 24 of diameter.These L shaped magnetic stripes can effectively prevent the magnetic field radiation of the electromagnetic field of transmitting coil generation when work to the system peripherals space; Reduce leaking outside of the magnetic line of force; Make the magnetic line of force in magnetic field in emission and receiving coil space, concentrate distribution, improved the efficient of radio energy transmission system greatly; These " L " shape magnetic stripes have also brought the similar techniques effect to receiving coil apparatus.
Below, the method for winding of description the utility model coil rack, this method comprises: the order along carry out the transition to the maximum receiving space 217 of diameter successively from the minimum receiving space 211 of diameter twines full wire rod in each receiving space; The mode of wound wire is in each receiving space: begin upwards, expire until this receiving space, twining along the axis direction spiral winding of receiving space from the bottom of receiving space.Wire rod winding direction in each receiving space is identical.And preferably, can only hold the wire rod in a line footpath in each receiving space, such single line material is stacked until twining full this receiving space in receiving space with the spiral canoe.
The wire rod that the utility model relates to is the enamelled wire stranded or work out (silk-covered wire or litz wire) that independently insulate through multiply, and this method for winding makes electromagnetic field to distribute more equably, and the CURRENT DISTRIBUTION on each strand enamelled wire will be comparatively average like this.Adopt this wire rod can slow down high frequency skin effect and proximity effect simultaneously.
To sum up, the coil rack of the utility model has a plurality of receiving spaces, and these receiving spaces are made up of the different cylinder group of the diameter of arranged in concentric circles, and the wire rod winding is in good order, the inductance value error is controlled easily thereby make; Correspondingly, the coil device of method for winding on coil rack and wireless power transmission system all can obtain to make wire rod to twine in good order, inductance value error and can be controlled at the technique effect in the very little scope.
The preferred embodiment that the above is merely the utility model is not limited to the utility model, and for a person skilled in the art, the utility model can have various changes and variation.All within the spirit and principle of the utility model, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection range of the utility model.
Claims (9)
1. coil rack; It is characterized in that; Said coil rack comprises and is the different a plurality of cylinders (2) of diameter that the concentric circles mode links together; Every adjacent two cylinders are spaced apart to form receiving space, and said receiving space constitutes the winding space that supplies wire rod to twine along said concentrically ringed axis direction spiral.
2. coil rack according to claim 1 is characterized in that,
In said a plurality of cylinders (2), the minimum cylinder (22) of diameter seal on its circumferencial direction, and the position disconnection of all the other cylinders on circumferencial direction separately carries out the transition to another receiving space for wire rod from a receiving space.
3. coil rack according to claim 1 and 2 is characterized in that, the spacing between every adjacent two said receiving spaces is identical, and the size of each receiving space is set to only hold the wire rod in a line footpath.
4. coil rack according to claim 3 is characterized in that,
Said a plurality of cylinder (2) links together through L shaped connecting plate (4); Said L shaped connecting plate (4) is made up of first connecting portion (44) of the bottom that is located at said a plurality of cylinder (2) and second connecting portion (42) that extends from said first connecting portion (44) bending
Wherein, said first connecting portion (44) extends along the direction of pointing to the minimum cylinder (22) of diameter from the maximum cylinder (24) of diameter, and offers first slot (46) that supplies magnetic stripe to insert along its bearing of trend;
Wherein, Said second connecting portion (42) extends along the direction that is parallel to said concentrically ringed axis; And radially outwards protrude from the outer peripheral face of the maximum cylinder (24) of diameter, said second connecting portion (42) offers second slot (48) that supplies magnetic stripe to insert along its bearing of trend.
5. coil rack according to claim 4 is characterized in that, said first slot (46) and second slot (48) are communicated with.
6. according to each described coil rack among claim 1-2, the 4-5, it is characterized in that said wire rod is that the enamelled wire that independently insulate through multiply is stranded or work out.
7. the coil device of a wireless power transmission system, transmitting coil device and receiving coil apparatus with electromagnetic coupled is characterized in that,
The coil rack of said transmitting coil device and the coil rack of said receiving coil apparatus are the described coil rack of aforementioned arbitrary claim.
8. the coil device of wireless power transmission system according to claim 7 is characterized in that,
The interior diameter of diameter smallest circle cylindrical shell in the coil rack of said transmitting coil device, for the 1.1-1.3 of the interior diameter of diameter smallest circle cylindrical shell in the coil rack of said receiving coil apparatus doubly.
9. according to the coil device of claim 7 or 8 described wireless power transmission systems,
It is characterized in that the coil rack of said transmitting coil device and the coil rack of said receiving coil apparatus are separately installed with L shaped magnetic stripe, said L shaped magnetic stripe is made up of the magnetic stripe that is inserted in respectively in first and second slots (46,48).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201802393U CN202126904U (en) | 2011-05-31 | 2011-05-31 | Coil device of coil framework and wireless power transmission system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201802393U CN202126904U (en) | 2011-05-31 | 2011-05-31 | Coil device of coil framework and wireless power transmission system |
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| CN202126904U true CN202126904U (en) | 2012-01-25 |
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| CN2011201802393U Expired - Lifetime CN202126904U (en) | 2011-05-31 | 2011-05-31 | Coil device of coil framework and wireless power transmission system |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103532246A (en) * | 2012-07-04 | 2014-01-22 | 海尔集团技术研发中心 | Wireless power transmission module, wireless power supply transmitting terminal apparatus and electrical apparatus |
| CN103532245A (en) * | 2012-07-04 | 2014-01-22 | 海尔集团技术研发中心 | Wireless electric power transmission module, wireless power supply transmitting terminal equipment and electrical equipment |
| CN103532247A (en) * | 2012-07-04 | 2014-01-22 | 海尔集团技术研发中心 | Wireless power transmission module, wireless power supply transmitting terminal apparatus and electrical apparatus |
| CN105790450A (en) * | 2012-04-17 | 2016-07-20 | 日东电工株式会社 | Wireless Power-transfer Device |
| CN106683860A (en) * | 2016-11-07 | 2017-05-17 | 中惠创智无线供电技术有限公司 | Coil support |
| CN107045933A (en) * | 2016-02-05 | 2017-08-15 | 捷佳科技股份有限公司 | Method for manufacturing wireless charging device |
| CN108735467A (en) * | 2018-03-12 | 2018-11-02 | 富达通科技股份有限公司 | Induction type power supply system and coil module thereof |
| CN109327081A (en) * | 2017-08-01 | 2019-02-12 | 中惠创智无线供电技术有限公司 | A kind of wireless electric energy transmission device |
| CN113257533A (en) * | 2020-02-07 | 2021-08-13 | 株式会社京浜 | Electric reactor |
-
2011
- 2011-05-31 CN CN2011201802393U patent/CN202126904U/en not_active Expired - Lifetime
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105790450B (en) * | 2012-04-17 | 2019-08-27 | 日东电工株式会社 | Power supply unit and power receiving device |
| CN105790450A (en) * | 2012-04-17 | 2016-07-20 | 日东电工株式会社 | Wireless Power-transfer Device |
| CN103532245A (en) * | 2012-07-04 | 2014-01-22 | 海尔集团技术研发中心 | Wireless electric power transmission module, wireless power supply transmitting terminal equipment and electrical equipment |
| CN103532247A (en) * | 2012-07-04 | 2014-01-22 | 海尔集团技术研发中心 | Wireless power transmission module, wireless power supply transmitting terminal apparatus and electrical apparatus |
| CN103532246B (en) * | 2012-07-04 | 2016-05-11 | 海尔集团技术研发中心 | Wireless power transmission module, wireless power transmitting end equipment and electric equipment |
| CN103532247B (en) * | 2012-07-04 | 2016-08-17 | 海尔集团技术研发中心 | Wireless power transmission module, wireless power transmitting end equipment and electric equipment |
| CN103532246A (en) * | 2012-07-04 | 2014-01-22 | 海尔集团技术研发中心 | Wireless power transmission module, wireless power supply transmitting terminal apparatus and electrical apparatus |
| CN107045933A (en) * | 2016-02-05 | 2017-08-15 | 捷佳科技股份有限公司 | Method for manufacturing wireless charging device |
| CN106683860A (en) * | 2016-11-07 | 2017-05-17 | 中惠创智无线供电技术有限公司 | Coil support |
| CN106683860B (en) * | 2016-11-07 | 2018-04-24 | 中惠创智无线供电技术有限公司 | Coil brace |
| CN109327081A (en) * | 2017-08-01 | 2019-02-12 | 中惠创智无线供电技术有限公司 | A kind of wireless electric energy transmission device |
| CN108735467A (en) * | 2018-03-12 | 2018-11-02 | 富达通科技股份有限公司 | Induction type power supply system and coil module thereof |
| CN108735467B (en) * | 2018-03-12 | 2021-03-05 | 富达通科技股份有限公司 | Induction type power supply system and coil module thereof |
| CN113257533A (en) * | 2020-02-07 | 2021-08-13 | 株式会社京浜 | Electric reactor |
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Granted publication date: 20120125 |