CN207518356U - Wireless power unit and wireless power supply - Google Patents
Wireless power unit and wireless power supply Download PDFInfo
- Publication number
- CN207518356U CN207518356U CN201721698372.1U CN201721698372U CN207518356U CN 207518356 U CN207518356 U CN 207518356U CN 201721698372 U CN201721698372 U CN 201721698372U CN 207518356 U CN207518356 U CN 207518356U
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- wireless power
- wireless
- rotary shaft
- power unit
- magnetic field
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Abstract
The utility model proposes a kind of wireless power unit and wireless power supplies, wireless power unit described in the present embodiment is set in the support component with rotary shaft, in a manner of using Wireless transceiver electric energy, composition is powered the electrical equipment being set in rotary shaft, the wireless power unit includes wireless transmitter module and the wireless receiving module being equipped with the wireless transmitter module；The wireless transmitter module is fixedly installed relative to the support component, and to convert electrical energy into magnetic field energy, the wireless receiving module, which has, to be servo-actuated in rotary shaft and the magnetic induction portion in the coverage area of magnetic field, and magnetic field energy is converted into electric energy.Wireless power unit described in the utility model, uses wireless power technology to be powered for the electrical equipment in rotary shaft, simplifies power supply structure, reduces maintenance cost, improves service life.
Description
Technical field
The utility model is related to wireless charging fields more particularly to a kind of wireless power unit and a kind of wireless power to fill
It puts
Background technology
In certain specific commercial Application scenes, sensor and other electrical equipments on high-speed rotating axis need
It powers, such as industrially needs to be powered for the sensor that rotor carries, at present, ripe solution is using electric ring
The problem of power supply, but is constrained to price, and service life and maintenance cost are always to be optimized in industrial circle, existing nothing
If micro USB power technology applied in rotary shaft, since rotor is to existing wireless charging structural damage, can generate eddy current effect
The loss and waste of energy are caused, and existing wireless charging power is smaller, can not meet the needs of commercial Application.
Utility model content
In view of this, the utility model is directed to a kind of wireless power supply, can be formed in a manner of wireless power
Equipment to be set in rotary shaft is powered.
In order to achieve the above objectives, the technical solution of the utility model is realized in：
A kind of wireless power unit is set in the support component with rotary shaft, with using the side of Wireless transceiver electric energy
Formula forms and the electrical equipment being set in rotary shaft is powered, and the wireless power unit includes：
Wireless transmitter module and the wireless receiving module being equipped with the wireless transmitter module；
The wireless transmitter module is fixedly installed relative to the support component, described to convert electrical energy into magnetic field energy
Wireless receiving module, which has, to be servo-actuated in rotary shaft and the magnetic induction portion in the coverage area of magnetic field, and magnetic field energy is converted into electricity
Energy.
Further, the wireless transmitter module includes the DC power supplier that input current is converted into DC current,
By DC current be converted into the square wave of the higher-order of oscillation, the high-frequency oscillating circuits module of sine wave or triangular wave and by square wave,
Sine wave, triangular wave are converted into the transmitting magnetic induction loop of magnetic field energy.
Further, the transmitting magnetic induction loop is arranged concentrically with the rotary shaft.
Further, the wireless receiving module include by magnetic field energy be converted into induced electromotive force magnetic induction portion and
The rectification module that the induced electricity stream that magnetic induction portion exports is adjusted further includes the electric current exported to rectification module and is filtered
And the voltage stabilizing output module that voltage is adjusted.
Further, the magnetic induction portion is receives magnetic induction loop.
Further, the reception magnetic induction loop is arranged concentrically with the rotary shaft.
Further, in be fixed in the rotary shaft be servo-actuated it is in place to shield rotary shaft institute in the rotary shaft
Put the magnet shielding structure in magnetic field.
Relative to the prior art, the utility model wireless power unit has the advantage that：
(1) wireless power unit described in the utility model is carried out using wireless power technology for the equipment in rotary shaft
Power supply simplifies structure, reduces maintenance cost, improves service life.
(2) shielding construction reduces the magnetic field intensity of rotary shaft position, reduces vortex of the rotary shaft in magnetic field
Loss, reduces the consumption and waste of the energy.
In addition, the utility model provides a kind of wireless power supply simultaneously, it is set to the support component with rotary shaft
On, in a manner of using Wireless transceiver electric energy, form and the electrical equipment being set in rotary shaft is powered, the wireless confession
Electric installation includes the multiple wireless power units as described above being arranged in parallel.
Further, the wireless transmitter module has what is converted electrical energy into the conducting of magnetic field transformation of energy access or interrupt
Switch.
Further, the wireless power supply includes, current collector, corresponding each wireless power unit setting,
To acquire the current value that magnetic field energy is converted into electric energy and has；Equalizing controller is further included, corresponding each wireless power unit is set
It puts, is adjusted with the current value having that magnetic field energy is converted into electric energy to each power supply unit.
Wireless power supply described in the utility model has same effect with above-mentioned wireless power unit, no longer superfluous herein
It states.
Description of the drawings
The attached drawing for forming the part of the utility model is used to provide a further understanding of the present invention, this practicality is new
The illustrative embodiments and their description of type do not form the improper restriction to the utility model for explaining the utility model.
In attached drawing：
Fig. 1 is the wireless charging device overall structure diagram described in the utility model embodiment；
Fig. 2 is that the single wireless charging unit in Fig. 1 coordinates exploded perspective view with rotary shaft and support component；
Fig. 3 is the wireless transmitter module connection diagram described in the utility model embodiment；
Fig. 4 is that the transmitting stent described in the utility model embodiment installs schematic cross-sectional view；
Fig. 5 is the wireless receiving module connection diagram described in the utility model embodiment；
Fig. 6 is magnet shielding structure schematic diagram described in the utility model embodiment；
Fig. 7 flows principle schematic to be active described in the utility model embodiment；
Reference sign：
1- wireless power units, 2- support components, 3- rotary shafts, 11- wireless transmitter modules, 12- wireless receiving modules,
The first mounting portions of 21-, 22- line interfaces, 23- switches, 201- heat emission holes, 2101- bearing holes, 211- deep groove ball bearings, 212-
Cylinder roller bearing, 111- DC power suppliers, 112- high-frequency oscillating circuits modules, 113- transmitting magnetic induction loops, 114- transmittings
Stent, 115- cover boards, 1141- mounting rings, the second mounting portions of 1142-, 1143- connection platelets, 1151- annular projections, 11401-
First through hole, 121- reception magnetic induction loops, 122- rectification modules, 123- voltage stabilizing output modules, 124- receive stent, and 1241- adds
Strengthening tendons, the second through-holes of 12401-, 1242- third mounting portions, 311- first layer shielding materials, 312- second layer shielding materials,
The first mounting blocks of 313-, the second mounting blocks of 314-.
Specific embodiment
In order to be easy to understand technical means, creative features, achievable purpose and effectiveness of the utility model, under
The utility model is described in detail by refer to the attached drawing and in conjunction with the embodiments in face, it should be noted that in the absence of conflict, this
The feature in embodiment and embodiment in utility model can be combined with each other.
Embodiment one
The present embodiment is related to a kind of wireless power supply, as shown in Figures 1 and 2, main to include transmitting using wireless mode
The wireless power unit 1 of electric energy, for providing the support component 2 of support and being fixed on having along itself in support component 2
The rotary shaft 3 of axis rotation.Wireless power unit 1 includes being arranged concentrically with rotary shaft 3 and being fixed on the wireless hair on support element 2
Penetrate module 11, to convert electrical energy into the magnetic field of high frequency, further include it is opposite with wireless transmitter module 11, be arranged concentrically and be fixed on
Wireless receiving module 12 in rotary shaft 3, electric energy is converted by magnetic field energy.
For the ease of checking, Fig. 2 is the exploded perspective view that single wireless power unit coordinates with rotary shaft and support component,
As shown in Fig. 2, support component 2 is square box structure, two opposite first mounting portions are provided at both ends in the support component 2
21, the first mounting portion 21 has the triangular structure of circular arc for top, is equipped in the first mounting portion 21 concentric with top arc
Bearing hole 2101, in being equipped with bearing in the bearing hole 2101, rotary shaft 3 is fixed in the endoporus that the bearing has,
To have the rotation along Pivot Point Center.Axial displacement is brought mechanical structure unfavorable caused by prevent 3 temperature distortion of rotary shaft
It influences, while convenient for the addition and dismounting of wireless transmitter module 11 and wireless receiving module 12,21 one end of the first mounting portion is made
For fixing end, installation can bear radial load and the deep groove ball bearing 211 of axial load simultaneously；The other end is as free end, peace
Dress, which is solely subjected to radial load, allows the cylinder roller bearing 212 for having certain axial displacement.For the ease of heat dissipation, in support component 2
Heat emission hole 201 is additionally provided on side wall.
As shown in Figures 3 and 4, wireless transmitter module 11 includes the DC power supply mould that input current is converted into DC current
DC current is turned to the high-frequency oscillating circuits module 112 of the square wave of the higher-order of oscillation, sine wave or triangular wave, high frequency by block 111
The alternating current of oscillation forms magnetic field on periphery, completes the electric energy in closed circuit being converted by transmitting magnetic induction loop 113
The process of magnetic field energy in open space magnetic field, wherein the transmitting magnetic induction loop 113 is round, ellipse or round rectangle
In it is any.
In order to realize wireless transmitter module 11 in the installation in support component 2, the present embodiment is additionally provided with transmitting stent 114.
As shown in Figures 3 and 4, DC power supplier 111 and high-frequency oscillating circuits module 112 are fixed on 2 box house of support component.Hair
It penetrates stent 114 and is fixed on 2 upper surface of support component；Transmitting stent 114 is Circular plate structure, and center is equipped with support ring 1141, Yu Fa
It penetrates 114 bottom of stent and is additionally provided with the second mounting portion 1142 installed with support component 2, the second mounting portion 1142 is rectangular blocks,
It is fixed in support component 2 equipped with bolt mounting holes, and then by bolt by stent 114 is emitted.To ensure that transmitting stent 114 is pacified
The stability of dress makes first through hole 11401 and rotary shaft 3 concentric, and does not deflect, and bolt mounting holes are no less than 2.Such as figure
Shown in 3, convenient for the replacement and repair of transmitting stent 114, connection platelet 1143 is also equipped in 114 lower half of transmitting stent,
Connection 1143 one end of platelet is electrically connected with transmitting magnetic induction loop 113, the other end and 22 electricity of line interface being set in support component 2
Even, line interface 22 and high-frequency oscillating circuits module 112,111 module of DC current source are electrically connected.As shown in figure 4, to prevent from emitting
Magnetic induction loop 113 is exposed in air, is additionally provided with cover board 115, and cover board is disk-shaped, and center is equipped with diameter and is more than mounting ring 1141
The through-hole of outer diameter.There is the annulus protrusion 1151 that height is more than transmitting 113 thickness of magnetic induction loop in edge, will emit magnetic induction loop
After 113 are bonded and fixed to transmitting stent 114, cover board 115 is secured by bolts on transmitting stent 114.Preferably, the hair
Stent 114 is penetrated, cover board 115 and fixed-use bolt used are the ABS materials for not influencing magnetic field.
As shown in figure 5, wireless receiving module 12 includes for magnetic energy being converted into the magnetic induction portion of induced electromotive force, the present embodiment
To receive magnetic induction loop 121, the rectification module 122 that induced electricity stream is adjusted filters the electric current of rectification module input
Involve the voltage stabilizing output module 123 of voltage adjusting and the reception stent 124 for fixing above-mentioned component.Receiving stent 124 is
Discoid, center is equipped with the second through-hole 12401, it is preferred that receives magnetic induction loop 121 and the second through-hole 12401 is concentric, receiving
124 side of stent is equipped with circular reinforcing rib 1241, circular 1241 and second through-hole of reinforcing rib along the second through-hole 12401
12401 with one heart, and internal diameter is identical with 12401 diameter of the second through-hole, and it is " L-shaped " to be equipped with two opposite sections in 1241 inner wall of reinforcing rib
Third mounting portion 1242, for the ease of installation, two opposite planes, " L-shaped " third installation are equipped in the rotary shaft 3
1242 bottom wall of portion and the plane contact in rotary shaft 3, tapped through hole is equipped in bottom wall, is consolidated by jackscrew by stent 124 is received
It is scheduled in rotary shaft 3.
Rotary shaft 3 disturbs the magnetic field of wireless power unit 1 in rotation process, reduces the work effect of wireless power unit 1
Rate and stability, while disturbance of magnetic field can generate eddy current effect in rotary shaft 3, send out huge heat, reduce the longevity of circuit
Life, causes the deformation of axis body, influences the efficiency of transmission.To overcome disadvantage mentioned above, as shown in fig. 6, it is axial along rotary shaft 3, it is sending out
Between penetrating magnetic induction loop 113 and receiving 121 opposite exterior lateral sides of magnetic induction loop, first layer shielding material is fixed in 3 outside of rotary shaft
311 and second layer shielding material 312, wherein, first layer shielding material 311 is bonded and fixed to the rotation by the first cushion block 313
In the opposite plane of 3 liang of shaft, second layer shielding material 312 is adhesively fixed on first layer shielding material 311 by the second cushion block 314
On, and rotary shaft 3, first layer shielding material 311, second layer shielding material 312, transmitting magnetic induction loop 113 are concentric, and then shield
The magnetic field of 3 position of rotary shaft.Shielding material preferably selects RFID magnetic pieces, it is recommended to use the IFL04 systems of TDK companies production
Row or IBF15 series.
It is controllable and mechanical with receiving the magnetic induction loop coefficient of coup, cost in guarantee in order to reach better shield effectiveness
Under the premise of structure is enforceable, magnetic shielding material can be set by following location, 3 a diameter of H0 of rotary shaft, emit magnetic induction loop 113
Internal diameter is H3, and 311 material internal diameter of first layer magnetic screen is H1, and 312 internal diameter of second layer magnetic shielding material is H2, emits magnetic induction loop
113 internal diameter H3 should be as big as possible, and minimum should be not less than 1.5 times of H0, and 312 internal diameter H2 of second layer shielding material should be with emitting magnetic induction line
It is as close as possible and should not exceed 0.05 times of H0 less than the difference of H3, H3 and H2 to enclose 113 internal diameter H3, H1 should be less than H2 and H2 and H1
Difference should be located between 0.1 times of H0 and 0.2 times of H0, specific implementation should be based on mechanical structure feasibility.
It after the completion of shielding construction, is learnt through experiment, magnetic field intensity P1b and unshielded knot at the 3 outside disc of rotary shaft
The relationship of magnetic field intensity P1a is P1b≤0.2*P1a at 3 outside disc of rotary shaft during structure；The 3 center magnetic field of rotary shaft
The relationship of intensity P2b and 3 center magnetic field intensity P2a of rotary shaft during unshielded structure is P2b≤0.1*P2a.In this condition
Under, the eddy current effect in rotary shaft 3 can be effectively reduced, entire wireless power unit is made to be in the working condition more optimized.
By designing above, emit magnetic induction loop 113 and reception magnetic induction loop 121 is concentric with rotary shaft 3, in rotary shaft
It under 3 rotation status, transmitting magnetic induction loop 113 and receives magnetic induction loop 121 and there was only angular displacement, without vector shift, between coil
Distance is fixed, will not change, variation will not be generated, therefore rotating in the coefficient of coup K of rotation process coil
In the case of the transmission of energy will not be had an impact.
In order to overcome the shortcomings that wireless power output power is relatively low in the prior art, as shown in Figure 1, being set in rotary shaft 3
Multiple wireless power units 1 are put, further, parallel connection are carried out to the wireless receiving module 12 of the multiple wireless power unit 1,
It is equivalent to and multiple power supplys is subjected to parallel connection as a power supply, and then improve output power.For the ease of to output power size
Adjusting, in the switch 23 that corresponding each wireless power unit is additionally provided on 2 side wall of support component, can actively make wireless power
Unit transmitting module, the access that electric energy is converted into magnetic energy are turned on or off, to meet the needs of different power unit electric powers.
Since each 1 performance of wireless power unit is not exactly the same, it is also necessary to which specific Flow Technique balances each module
Circuit load, the power output of total system is made to be in a stable working condition.Due to the electricity of wireless power unit 1
Gas performance is essentially identical, thus power grade be considered as it is identical, electric current according to Principle of Average Allocation perform.Due to each nothing in parallel
The load characteristic of line power supply unit 1 is in droop characteristic, that is, loads heavier, and output voltage is lower.In parallel connection, the small module of internal resistance
Output current is big；The big module output current of internal resistance is small, and the load characteristic by adjusting each wireless power unit makes it as possible
It is close so that the electric current distribution of each wireless power unit is close to uniformly.
Preferably to play current balance function, as shown in fig. 7, using active current-equalizing method, in each 1 electricity of wireless power unit
Current acquisition sensor and equalizing controller are all added in road；By the current acquisition between each wireless power unit and
Compare, to find the unbalanced situation of each blocks current in parallel；By the adjustment to feedback control signal, with to single wireless
The current control of power supply unit, so as to make to generate electric current in each wireless power unit close to identical, so as to fulfill flowing.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model
Protection domain within.
Claims (10)
1. a kind of wireless power unit is set in the support component with rotary shaft, in a manner of using Wireless transceiver electric energy,
Composition is powered the electrical equipment being set in rotary shaft, it is characterised in that the wireless power unit includes：
Wireless transmitter module and the wireless receiving module being equipped with the wireless transmitter module；
The wireless transmitter module is fixedly installed relative to the support component, to convert electrical energy into magnetic field energy；It is described wireless
Receiving module, which has, to be servo-actuated in the rotary shaft and the magnetic induction portion in the coverage area of magnetic field, and magnetic field energy is converted into electricity
Energy.
2. wireless power unit according to claim 1, it is characterised in that：The wireless transmitter module includes that electricity will be inputted
Circulation turns to the DC power supplier of DC current, and DC current is converted into the square wave, sine wave or triangular wave of the higher-order of oscillation
High-frequency oscillating circuits module and square wave, sine wave, triangular wave are converted into the transmitting magnetic induction loop of magnetic field energy.
3. wireless power unit according to claim 2, it is characterised in that：The transmitting magnetic induction loop and the rotary shaft
It is arranged concentrically.
4. wireless power unit according to claim 1, it is characterised in that：The wireless receiving module is included magnetic field energy
The magnetic induction portion of induced electromotive force is converted into, rectification module that the induced electricity stream that magnetic induction portion exports is adjusted and right
The voltage stabilizing output module that the electric current of rectification module output is filtered and voltage is adjusted.
5. wireless power unit according to claim 4, it is characterised in that：The magnetic induction portion is receives magnetic induction loop.
6. wireless power unit according to claim 5, it is characterised in that：The reception magnetic induction loop and the rotary shaft
It is arranged concentrically.
7. wireless power unit according to claim 1, it is characterised in that：In be fixed in the rotary shaft be servo-actuated in
The rotary shaft is to shield the magnet shielding structure in rotary shaft position magnetic field.
8. a kind of wireless power supply is set in the support component with rotary shaft, in a manner of using Wireless transceiver electric energy,
Composition is powered the electrical equipment being set in rotary shaft, it is characterised in that：The wireless power supply is set including parallel connection
The multiple wireless power units as described in any one of claim 1 to 7 put.
9. wireless power supply according to claim 8, it is characterised in that：The wireless transmitter module, which has, turns electric energy
Turn to the conducting of magnetic field transformation of energy access or the switch interrupted.
10. wireless power supply according to claim 8, it is characterised in that：
Current collector, corresponding each wireless power unit setting, to acquire the current value that magnetic field energy is converted into electric energy and has；
Equalizing controller, corresponding each wireless power unit setting, with magnetic field energy is converted into electric energy have current value into
Row is adjusted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721698372.1U CN207518356U (en) | 2017-12-08 | 2017-12-08 | Wireless power unit and wireless power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721698372.1U CN207518356U (en) | 2017-12-08 | 2017-12-08 | Wireless power unit and wireless power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207518356U true CN207518356U (en) | 2018-06-19 |
Family
ID=62543464
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721698372.1U Expired - Fee Related CN207518356U (en) | 2017-12-08 | 2017-12-08 | Wireless power unit and wireless power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207518356U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110829791A (en) * | 2019-11-05 | 2020-02-21 | 德能森智能科技（成都）有限公司 | High-generating-capacity rotary wireless passive device |
| CN113394920A (en) * | 2021-06-24 | 2021-09-14 | 上海卓荃电子科技有限公司 | Motor rotor temperature measurement system and intelligent temperature control type motor |
| CN113489160A (en) * | 2021-07-01 | 2021-10-08 | 重庆大学 | Wireless power supply intelligent bearing |
-
2017
- 2017-12-08 CN CN201721698372.1U patent/CN207518356U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110829791A (en) * | 2019-11-05 | 2020-02-21 | 德能森智能科技（成都）有限公司 | High-generating-capacity rotary wireless passive device |
| CN112994406A (en) * | 2019-11-05 | 2021-06-18 | 德能森智能科技（成都）有限公司 | Wireless switch power generation component and power generation control method |
| CN113394920A (en) * | 2021-06-24 | 2021-09-14 | 上海卓荃电子科技有限公司 | Motor rotor temperature measurement system and intelligent temperature control type motor |
| CN113489160A (en) * | 2021-07-01 | 2021-10-08 | 重庆大学 | Wireless power supply intelligent bearing |
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| GR01 | Patent grant | ||
| 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: 20180619 Termination date: 20201208 |