CN103093948B - A kind of wireless power transmission rotary transformer being applicable to high temperature and high pressure environment - Google Patents
A kind of wireless power transmission rotary transformer being applicable to high temperature and high pressure environment Download PDFInfo
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- CN103093948B CN103093948B CN201110332645.1A CN201110332645A CN103093948B CN 103093948 B CN103093948 B CN 103093948B CN 201110332645 A CN201110332645 A CN 201110332645A CN 103093948 B CN103093948 B CN 103093948B
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- magnetic core
- former limit
- box hat
- epoxy resin
- high pressure
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 34
- 238000004804 winding Methods 0.000 claims abstract description 40
- 239000003822 epoxy resin Substances 0.000 claims abstract description 37
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 37
- 238000000034 method Methods 0.000 claims abstract description 7
- 230000002093 peripheral Effects 0.000 claims description 6
- 230000001131 transforming Effects 0.000 claims description 6
- 230000000875 corresponding Effects 0.000 abstract description 5
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 238000005755 formation reaction Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 6
- 239000004020 conductor Substances 0.000 description 4
- 238000005553 drilling Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 229910000529 magnetic ferrite Inorganic materials 0.000 description 3
- 229910000859 α-Fe Inorganic materials 0.000 description 3
- 230000002411 adverse Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- -1 dirt Substances 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 239000010426 asphalt Substances 0.000 description 1
- 230000003111 delayed Effects 0.000 description 1
- 230000000994 depressed Effects 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
Abstract
The present invention relates to a kind of rotary transformer, be specifically related to a kind of be applicable to high temperature, environment under high pressure with the rotary transformer of wireless power transmission.Including the former limit box hat being fixed on outer wall of inner tube, it is enclosed within the outer secondary box hat of inner tube, former limit box hat outer rim and secondary box hat inner edge are respectively embedded into be fixed with inside former limit magnetic core and secondary magnetic core, former limit magnetic core and secondary magnetic core to be respectively embedded into and are fixed with primary side winding and vice-side winding；The axial location of former limit box hat and secondary box hat corresponds to each other, and former limit magnetic core and secondary magnetic core axial location correspond to each other, and primary side winding and vice-side winding axial location correspond to each other；Including two epoxy resin embedding layers that respectively primary side winding and vice-side winding are carried out epoxy resin encapsulated process formation；Two epoxy resin embedding layer axial locations correspond to each other；Certain interval is left in former limit box hat, former limit magnetic core, the first epoxy resin encapsulated layer and secondary box hat, secondary magnetic core, position that the second epoxy resin encapsulated layer is the most corresponding.The present invention is the most reliable, durable.
Description
Technical field
The present invention relates to a kind of rotary transformer, be specifically related to a kind of use being applicable to high temperature, environment under high pressure
Electricity equipment is with wireless, the rotary transformer of cordless transmission electric energy.
Background technology
Under tradition power supply mode, exist and between the equipment of relative motion, carry out electric energy transmission many employings brush dress
Put.There is the problems such as skimming wear, contact sparking, carbon deposit and dangerous bare exposed conductor in this power supply mode,
There is potential safety hazard, it is impossible to be applied to the adverse circumstances of the high temperature such as mine, high humidity.Traditional transformer is main
Realize voltage transformation function, between transformer primary, secondary, there is physical connection, it is impossible to carry out relative motion
Electric energy transmission between equipment.
The most urgently the employing former and deputy limit of rotary transformer is without the electric energy transmission means of direct electrical contact, and
Can exist without bare exposed conductor, it is ensured that electric insulation between system components, it is provided that a kind of safe and reliable
Novel reliable and be applicable to high temperature, the rotary transformer of high pressure adverse circumstances.
Summary of the invention
It is an object of the invention to provide one and be applicable to high temperature, environment under high pressure, electrical equipment with wireless,
Cordless transmission electric energy, has higher levels of electrical power efficiency of transmission, it is possible to ensure that electric energy transmission capacity is not subject to
The impact of the environmental factorss such as dust, dirt, water, the most reliably, durable, and not flashing, do not deposit
Wireless power transmission rotary transformer in mechanical wear and friction.
To achieve these goals, a kind of wireless power transmission rotation being applicable to high temperature and high pressure environment of the present invention
Change depressor, including the tubular being fixed on outer wall of inner tube former limit box hat, fixed cover outer tube outside inner tube
Tubular secondary box hat on inwall, described former limit box hat outer wall is provided with the first annular recess circumferentially, secondary
Limit box hat inwall is provided with the second annular recess circumferentially, described first annular recess and second ring-type recessed
Groove location corresponds to each other, and in described first annular recess and the second annular recess, position is the most embedding respectively
Enter to have the internal position respectively of former limit magnetic core and secondary magnetic core, described former limit magnetic core and secondary magnetic core the most embedding
Enter to have primary side winding and vice-side winding；Certain interval is left between described former limit box hat and described secondary box hat,
Certain interval is left between former limit magnetic core and secondary magnetic core；Described former limit box hat and former limit magnetic core pass through epoxy
Resin fills fixing, and secondary box hat fills fixing with secondary magnetic core by epoxy resin, primary side winding and former limit magnetic
Core fills fixing by epoxy resin, and vice-side winding fills fixing with secondary magnetic core by epoxy resin；
Space between primary side winding and former limit magnetic core carries out epoxy resin encapsulated process and forms the first asphalt mixtures modified by epoxy resin
Fat embedding layer, the space between vice-side winding and secondary magnetic core carries out epoxy resin encapsulated process and forms second
Epoxy resin encapsulated layer, described first epoxy resin encapsulated layer and the second epoxy resin encapsulated layer position are each other
Corresponding；
The axial two ends of magnetic core, described former limit are provided with the first cushion pad and the second cushion pad, and secondary magnetic core is axial
Two ends be provided with the 3rd cushion pad and) the 4th cushion pad；
Realize remaining to work under 155 DEG C of high temperature, 105MPa high pressure.
It is axial symmetry that former limit described further box hat outer rim uses outer wall one end to be provided with peripheral flange axial cross section
" ┗ ┛ " shape structure, described secondary box hat uses inwall one end, and to be provided with peripheral flange axial cross section be axle
Symmetrical " ┏ ┓ " shape structure；Axial one end of magnetic core, former limit in the box hat of described embedding former limit is by described
Second cushion pad is connected with former limit box hat, and this former limit axial other end of magnetic core is by described first cushion pad even
It is connected to be set with the first baffle plate being fixed on the box hat of former limit；Secondary magnetic core axle in described embedding secondary box hat
Being connected with secondary box hat by described 4th cushion pad to one end, this axial other end of secondary magnetic core passes through the
Three cushion pads connect the tubular second baffle being fixed on secondary box hat.
Former limit described further magnetic core outer wall is provided with annular recess, and axial cross section is perpendicular in " work " word vertically
To half shape；Secondary magnetic core inwall is provided with annular recess, and axial cross section is vertically in " work " word vertical
Half shape.
Gap between former limit box hat described further and described secondary box hat is 1.5～4mm；Former limit magnetic core
And the gap between secondary magnetic core is 1.5～4mm.
Gap between former limit box hat described further and described secondary box hat is 2mm；Former limit magnetic core is with secondary
Gap between the magnetic core of limit is 2mm.
The wire of primary side winding described further is through former limit magnetic core and former limit box hat and fixes on inner pipe
High pressure contact pin one end, former limit connects, and this former limit high pressure contact pin other end connects with electromotor and power converting circuit
Connecing, the wire of described vice-side winding is inserted with the secondary high pressure on secondary box hat through secondary magnetic core with being fixed on
Pin one end connects, and the other end of this secondary high pressure contact pin is connected with electronics translation circuit and load.
Beneficial effects of the present invention:
Invention describes one and be applicable to high temperature, environment under high pressure, and there is higher levels of electrical power efficiency of transmission
Wireless power transmission rotary transformer.The former and deputy limit of wireless power transmission rotary transformer is without the most electrically
Contact, exists without bare exposed conductor, it is ensured that electric insulation between system components, electric energy transmission capacity is not
Affected by environmental factorss such as dust, dirt, water.With tradition power supply mode compared with the most reliable, durable,
And not flashing, there is not mechanical wear and friction, be particularly well-suited to mine, oil field drilling and motion
Equipment, can be widely applied to produce at Aero-Space, robot, medical apparatus and instruments, illumination, portable electronic
The occasion such as product, wireless charging.
Accompanying drawing explanation
Fig. 1 is that one wireless power transmission rotary transformer of the present invention uses schematic diagram；
Fig. 2 is one wireless power transmission rotating transformer structures schematic diagram of the present invention.
In figure: the high pressure contact pin of 1-former limit；2-secondary high pressure contact pin；3-inner tube；4-outer tube；5-is former
Limit box hat；6-former limit magnetic core；7-primary side winding；8-the first epoxy resin encapsulated layer；9-first gear
Plate；10-the first cushion pad；11-secondary box hat；12-secondary magnetic core；13-vice-side winding；14-
Diepoxy resin embedding layer；15-second baffle；16-the second cushion pad；17-limiting card.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is described further.
A kind of wireless power transmission rotary transformer being applicable to high temperature and high pressure environment is arranged under ground level
Automatic vertical drilling tool outer tube 4 and inner tube 3 between annular housing in, including by limiting card 17 with
The tubular former limit box hat 5 that draw-in groove on the outer wall of inner tube 3 is fixed, is fixed by a pin to outer tube 4
Inwall in tubular secondary box hat 11；This former limit box hat 5 outer wall is provided with the first annular recess, outside employing
It is axisymmetric " ┗ ┛ " shape structure that wall one end is provided with peripheral flange axial cross section；In secondary box hat 11
Wall is provided with the second annular recess, and using inwall one end to be provided with peripheral flange axial cross section is axisymmetric " ┏
┓ " shape structure；Also include being respectively embedded in former limit box hat 5 and secondary box hat 11 and pass through epoxy resin admittedly
Fixed tubular former limit magnetic core 6 and tubular secondary magnetic core 12, this former limit magnetic core 6 outer wall is provided with annular recess,
Axial cross section is vertically in " work " word vertical half shape with secondary magnetic core 12 inwall is provided with annular recess, axle
To cross section vertically in " work " word vertical half shape, this structure can make rotary transformer efficiency of transmission carry
Height, this former limit magnetic core 6 and secondary magnetic core 12 use FERRITE CORE；Described former limit magnetic core 6 annular recess
Be respectively embedded into primary side winding 7 and vice-side winding 13 in secondary magnetic core 12 annular recess；
The axial location of described former limit box hat 5 and secondary box hat 11 corresponds to each other, described former limit magnetic core 6 He
Secondary magnetic core 12 axial location corresponds to each other, described primary side winding 7 and vice-side winding 13 axial location that
This is corresponding；
Also include respectively to primary side winding 7 and vice-side winding 13 and this primary side winding 7 and vice-side winding
13 carry out epoxy resin filling with embedded space between corresponding former limit magnetic core 6 and secondary magnetic core 12
The first epoxy resin encapsulated layer 8 and the second epoxy resin encapsulated layer 14 that envelope process is formed；Described first ring
Epoxy resin embedding layer 8 and the second epoxy resin encapsulated layer 14 position correspond to each other；First epoxy resin encapsulated
Layer 8 and the second epoxy resin encapsulated layer 14 not only act as by primary side winding 7 and vice-side winding 13 respectively with
Former limit magnetic core 6 and the fixing effect of secondary magnetic core 12, and respectively by primary side winding 7 and vice-side winding
13 with external isolation, play the effect of sealed insulation, make the present invention be adapted to down-hole slurry and wash away environment.
Described former limit box hat 5, former limit magnetic core the 6, first epoxy resin encapsulated layer 8 and described secondary box hat
11, gap is left in the position that secondary magnetic core the 12, second epoxy resin encapsulated layer 14 is corresponding respectively, should
Gap length can use 1.5mm, 2mm, 3mm, 4mm, here preferably 2mm.
The axial two ends of former limit magnetic core 6 are provided with the first cushion pad 10 and the second cushion pad 18, secondary magnetic core
12 axial two ends are provided with the 3rd cushion pad 16 and the 4th caching pad 19；In described embedding former limit box hat 5
The axial one end of former limit magnetic core 6 be connected with former limit box hat 5 by described second cushion pad 18, this former limit magnetic
The axial other end of core 6 connects, by described first cushion pad 10, have suit to be welded on former limit box hat 5 the
One baffle plate 9；Axial one end of secondary magnetic core 12 in described embedding secondary box hat 11 is delayed by the described 4th
Die head 19 is connected with secondary box hat 11, and this axial other end of secondary magnetic core 12 passes through the 3rd cushion pad 16
Connect and have the tubular second baffle 15 being welded on secondary box hat 11；First baffle plate 9 and second baffle 15
Can ensure that each parts and components is without axial float.
The wire of described primary side winding 7 is fixed on inner tube through former limit magnetic core 6 and former limit box hat 5 with interting
On high pressure contact pin 1 one end, former limit connect, this former limit high pressure contact pin 1 other end connects and electromotor and electricity
Source translation circuit connects, the wire of described vice-side winding 13 through secondary magnetic core 12 with intert be fixed on
Secondary high pressure contact pin one end 2 on secondary box hat 11 connects, the other end of this secondary high pressure contact pin 2 and electricity
Sub-translation circuit and load connect.
When inner tube rotates, the three-phase alternating current that electromotor sends through power converting circuit inject former limit around
Group 7.According to Faraday law of electromagnetic induction, primary side winding 7 surrounding produces the alternating magnetic field of high frequency, should
Magnetic field is closed by former limit magnetic core 6 and secondary magnetic core 12.Former limit magnetic core 6 and secondary magnetic core 12 play and close
Close magnetic circuit, reduce magnetic field and leak, improve the effect of efficiency of transmission.By the magnetic field of secondary magnetic core 12 in pair
Limit winding 13 induces high-frequency alternating current, powers to electrical equipment.
The former and deputy limit of the present invention is without direct electrical contact, safe and reliable.Avoid and relatively rotate equipment brush
Such as skimming wear, contact sparking, carbon deposit and the dangerous bare exposed conductor etc. existed Deng tradition power supply mode
Problem, is not washed away environmental effect by former and deputy limit relative motion and mud.High pressure is selected on former and deputy limit respectively
Seal contact pin and connect electromotor and load respectively, former and deputy limit is carried out monoblock type epoxy resin encapsulated process,
Even enabling a device to reach 155 DEG C of high temperature, 105MPa high pressure, and the evil that mud washes away in underground
Work safe and reliable under bad environment；By the electromagnetic field of rotary transformer is carried out simulation analysis, optimize
Ferrite core structure and size, cross section is vertically in the structure of " work " word vertical half shape, it is possible to real
Existing high efficiency electric energy transmission, efficiency of transmission is up to more than 85%, and efficiency of transmission is not relative by former and deputy limit
The impact rotated.Owing to FERRITE CORE quality is crisp and hard, easily collapsed angle by external force the most broken.This
Invention uses box hat structure, and places cushion pad between magnetic core and box hat, protects magnetic core, makes nothing
Line electric energy transmission rotary transformer can bear 20g strong vibration, environment under high pressure.The nothing that this embodiment relates to
Rotary transformer is high temperature resistant, high pressure resistant, resistance to shakes by force for the transmission of line electric energy, and electric energy efficiency of transmission is high, structure letter
Single, reliable, it is easy to dismantle and safeguard.
The reality of a kind of wireless power transmission rotary transformer being applicable to high temperature and high pressure environment given above
Execute scheme, user can according to concrete mounting interface and the demand in space, can according to practical service environment,
Each several part size, parameter are carried out concrete design.Can apply to mine, oil field drilling and motion set
Standby, and can be widely applied to produce at Aero-Space, robot, medical apparatus and instruments, illumination, portable electronic
In the occasion such as product, wireless charging, and reach good effect.
Claims (6)
1. the wireless power transmission rotary transformer being applicable to high temperature and high pressure environment, it is characterised in that: bag
Including tubular former limit box hat (5) being fixed on inner tube (3) outer wall, fixed cover is at the outer outer tube of inner tube (3)
(4) tubular secondary box hat (11) on inwall, described former limit box hat (5) outer wall is provided with first circumferentially
Annular recess, secondary box hat (11) inwall is provided with the second annular recess circumferentially, described first ring-type
Groove and the second annular recess position correspond to each other, and divide in described first annular recess and the second annular recess
Other position is embedded with former limit magnetic core (6) and secondary magnetic core (12), described former limit magnetic core (6) and pair accordingly
The internal position respectively of limit magnetic core (12) is embedded with primary side winding (7) and vice-side winding (13) accordingly；Institute
State and between former limit box hat (5) and described secondary box hat (11), leave certain interval, former limit magnetic core (6) with
Secondary magnetic core leaves certain interval between (12)；Described former limit box hat (5) is passed through with former limit magnetic core (6)
Epoxy resin fills fixing, and secondary box hat (11) fills fixing with secondary magnetic core (12) by epoxy resin, former
Limit winding (7) fills fixing with former limit magnetic core (6) by epoxy resin, vice-side winding (13) and secondary magnetic
Core (12) fills fixing by epoxy resin；
Space between primary side winding (7) and former limit magnetic core (6) carries out epoxy resin encapsulated process and forms the
One epoxy resin encapsulated layer (8), the space between vice-side winding (13) and secondary magnetic core (12) carries out ring
Epoxy resin embedding process forms the second epoxy resin encapsulated layer (14), described first epoxy resin encapsulated layer (8)
Correspond to each other with the second epoxy resin encapsulated layer (14) position；
Described former limit magnetic core (6) is axially provided with the first cushion pad (10) and the second cushion pad (18) in two ends,
Secondary magnetic core (12) is axially provided with the 3rd cushion pad (16) and the 4th cushion pad (19) in two ends；
Realize remaining to work under 155 DEG C of high temperature, 105MPa high pressure.
2. rotate transformation according to the wireless power transmission being applicable to high temperature and high pressure environment described in claim 1
Device, it is characterised in that: described former limit box hat (5) outer rim uses outer wall one end to be provided with peripheral flange axial cross section
For axisymmetric " ┗ ┛ " shape structure, described secondary box hat (11) uses inwall one end to be provided with peripheral flange
Axial cross section is axisymmetric " ┏ ┓ " shape structure；Former limit magnetic core (6) in described embedding former limit box hat (5)
Axially one end is connected with former limit box hat (5) by described second cushion pad (18), this former limit magnetic core (6)
Axially the other end connects have that suit is fixed on former limit box hat (5) the by described first cushion pad (10)
One baffle plate (9)；Secondary magnetic core (12) in described embedding secondary box hat (11) axially one end is by described
4th cushion pad (19) is connected with secondary box hat (11), and this secondary magnetic core (12) axially other end passes through
3rd cushion pad (16) connects the tubular second baffle (15) being fixed on secondary box hat (11).
3. rotate transformation according to the wireless power transmission being applicable to high temperature and high pressure environment described in claim 1
Device, it is characterised in that: described former limit magnetic core (6) outer wall is provided with annular recess, and axial cross section is vertically in " work "
Word vertical half shape；Secondary magnetic core (12) inwall is provided with annular recess, and axial cross section is vertically in " work "
Word vertical half shape.
4. rotate transformation according to the wireless power transmission being applicable to high temperature and high pressure environment described in claim 1
Device, it is characterised in that: the gap between described former limit box hat (5) and described secondary box hat (11) is 1.5～4mm；
Gap between former limit magnetic core (6) and secondary magnetic core (12) is 1.5～4mm.
5. rotate transformation according to the wireless power transmission being applicable to high temperature and high pressure environment described in claim 3
Device, it is characterised in that: the gap between described former limit box hat (5) and described secondary box hat (11) is 2mm；
Gap between former limit magnetic core (6) and secondary magnetic core (12) is 2mm.
6. rotate transformation according to the wireless power transmission being applicable to high temperature and high pressure environment described in claim 1
Device, it is characterised in that: the wire of described primary side winding (7) passes former limit magnetic core (6) and former limit box hat (5)
It is connected with fixing high pressure contact pin (1) one end, former limit on inner pipe, this former limit high pressure contact pin (1) other end
Being connected with electromotor and power converting circuit, the wire of described vice-side winding (13) passes secondary magnetic core (12)
It is connected with secondary high pressure contact pin one end (2) being fixed on on secondary box hat (11), this secondary high pressure contact pin
(2) the other end is connected with electronics translation circuit and load.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110332645.1A CN103093948B (en) | 2011-10-27 | A kind of wireless power transmission rotary transformer being applicable to high temperature and high pressure environment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110332645.1A CN103093948B (en) | 2011-10-27 | A kind of wireless power transmission rotary transformer being applicable to high temperature and high pressure environment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103093948A CN103093948A (en) | 2013-05-08 |
| CN103093948B true CN103093948B (en) | 2016-12-14 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6483218B1 (en) * | 1999-05-20 | 2002-11-19 | Alex Petrinko | Brushless electric exciter for dynamoelectric machines |
| CN1625790A (en) * | 2002-01-30 | 2005-06-08 | 艾劳埃斯·乌本 | Translator |
| CN2751420Y (en) * | 2004-12-06 | 2006-01-11 | 广州擎天电气控制实业有限公司 | A high-frequency high withstanding voltage pulse transformer |
| US20060022785A1 (en) * | 2003-02-26 | 2006-02-02 | Analogic Corporation | Power coupling device |
| CN1856849A (en) * | 2003-09-23 | 2006-11-01 | 西门子公司 | Inductive rotating transmitter |
| CN201332326Y (en) * | 2008-12-31 | 2009-10-21 | 北京天高智机技术开发公司 | High temperature resistant and high voltage resistant slotless permanent magnet drill pipe generator |
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6483218B1 (en) * | 1999-05-20 | 2002-11-19 | Alex Petrinko | Brushless electric exciter for dynamoelectric machines |
| CN1625790A (en) * | 2002-01-30 | 2005-06-08 | 艾劳埃斯·乌本 | Translator |
| US20060022785A1 (en) * | 2003-02-26 | 2006-02-02 | Analogic Corporation | Power coupling device |
| CN1856849A (en) * | 2003-09-23 | 2006-11-01 | 西门子公司 | Inductive rotating transmitter |
| CN2751420Y (en) * | 2004-12-06 | 2006-01-11 | 广州擎天电气控制实业有限公司 | A high-frequency high withstanding voltage pulse transformer |
| CN201332326Y (en) * | 2008-12-31 | 2009-10-21 | 北京天高智机技术开发公司 | High temperature resistant and high voltage resistant slotless permanent magnet drill pipe generator |
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