CN106205965A - A kind of three-phase transformer - Google Patents
A kind of three-phase transformer Download PDFInfo
- Publication number
- CN106205965A CN106205965A CN201610512848.1A CN201610512848A CN106205965A CN 106205965 A CN106205965 A CN 106205965A CN 201610512848 A CN201610512848 A CN 201610512848A CN 106205965 A CN106205965 A CN 106205965A
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- piston
- casing
- pressure winding
- coil
- bellmouth
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/08—Cooling; Ventilating
- H01F27/10—Liquid cooling
- H01F27/12—Oil cooling
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/2823—Wires
- H01F27/2828—Construction of conductive connections, of leads
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/2876—Cooling
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/30—Fastening or clamping coils, windings, or parts thereof together; Fastening or mounting coils or windings on core, casing, or other support
- H01F27/306—Fastening or mounting coils or windings on core, casing or other support
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/32—Insulating of coils, windings, or parts thereof
- H01F27/327—Encapsulating or impregnating
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
- H01F41/12—Insulating of windings
- H01F41/127—Encapsulating or impregnating
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a kind of three-phase transformer, include the casing of upper end open, fixed seal connection is at the lid of casing upper end, the iron core being fixedly mounted on casing inner bottom part and the winding assembly being fixedly mounted on iron core；Described winding assembly includes ceramic matrix and one-body molded 3 groups of high pressure winding coils in ceramic matrix and 3 groups of low pressure winding coils, described ceramic matrix is prepared by 3D Method of printing, after ceramic matrix sinter molding, in coil channel, inject copper water carry out the molding of winding coil.Present invention eliminates coiling and manually ceramic matrix is carried out moulding process, and machining accuracy is more guaranteed, is suitable to industrialized mass production.
Description
Technical field
The invention belongs to distribution transformer construction applications, be specifically related to a kind of three-phase transformer structure dispelling the heat good.
Background technology
The Chinese invention patent of Patent No. 201010169512.2 discloses a kind of fully-closed ceramic sintered dry-type and becomes
Transformer coil and preparation method thereof, including conductor and insulator, it is characterized in that described conductor is
Bare conductor, insulator is pottery；The manufacture method of this fully-closed ceramic sintered dry-type transformer coil, uses following work
Skill step: (one) coiling: be coiled into coil after bare conductor appearance topcoating glaze；(2) sealed loop: the turn-to-turn of coil, layer
Between, intersegmental and coil surrounding all encapsulates completely with pottery mud；And pottery mud or porcelain mud packed tightly coil be compacted into base substrate, it is coated with
Glaze；(3) it is fired into one: become pottery or porcelain by sintering or baking, and form an entirety with bare conductor.In a word, this
Bright providing the benefit that: insulation grade anti-corrosion is high, not producing harmful gas during high temperature, moistureproof water-resisting property is good, even if coil is put
Water also can run, and service life is long.But the subject matter that the program exists is coil winding trouble, and step (two)
Need to fully rely on manual operation, waste time and energy and difficult quality guarantee, be unfavorable for industrialized mass production.
Number of patent application be 201510047881.7 Chinese patent application disclose a kind of 3D print solenoid side
Method, designs required coil three-dimensional mold file by computer aided design software；Entity is printed by 3D printer
Mould；Inject the metal or metal alloy becoming liquid under room temperature, form conductive coil；Then metal connector is embedded mould
Entrance and exit, to provide the interface with external circuit, finally use entrance and the exit of epoxy sealing coil.This
Invention can design the structure of solenoid accurately and efficiently, without being limited by volume.Present invention structure is every simultaneously
One step is all prone to streamlined and produces, thus considerably reduces the time required for structure solenoid.But the program
There is problems of using liquid metal cost high, optional material is few, and resistance is relatively big, and when power is bigger, heating is serious, no
The transformator being applicable to power transformation class uses.
Summary of the invention
The technical problem to be solved is: the deficiency existed for prior art, it is provided that a kind of structure design is closed
Reason novelty, good heat dissipation effect, manufacture three-phase transformer structure easy to process.
For realizing the purpose of the present invention, it is achieved by the following technical solutions: a kind of three-phase transformer, includes upper end
The casing of opening, fixed seal connection, at the lid of casing upper end, is fixedly mounted on the iron core of casing inner bottom part and fixing peace
The winding assembly being contained on iron core；
Described iron core includes 3 longitudinally disposed stem stems and is connected to the horizontally disposed ferrum of each stem stem upper and lower end parts
Yoke；The iron yoke bottom connection being positioned at lower end on described iron core has base, base to be connected with casing inner bottom part；
Described winding assembly includes ceramic matrix and one-body molded 3 groups of high pressure winding coils in ceramic matrix and 3 groups
Low pressure winding coil, along longitudinally forming 3 ports coordinated with stem stem on ceramic matrix, low pressure winding coil takes shape in port
Periphery, high pressure winding coil is in the periphery of low pressure winding coil；High pressure winding is passed through in one end of each high pressure winding coil
Connecting line is connected, and one end of each low pressure winding coil is connected by low pressure winding connecting line, on low pressure winding connecting line
Connect and have the neutral conductor；The other end of each high pressure winding coil is respectively high pressure winding leading-out wire, each low pressure winding coil
The other end is respectively low pressure winding leading-out wire, described lid has been respectively fixedly connected with 3 high-tension insulating bushings and 3 low pressure are exhausted
Edge sleeve pipe, each high pressure winding leading-out wire passes from high-tension insulating bushing, and each low pressure winding leading-out wire is from low-voltage insulation sleeve pipe
Pass；
Form in described ceramic matrix in order to high pressure winding coil, low pressure winding coil, high pressure winding connecting line described in molding
And the coil channel of low pressure winding connecting line, described ceramic matrix also forms and draws in order to high pressure winding described in molding
The lead-out wire formed pipe of line, low pressure winding leading-out wire and the neutral conductor；At least it is being positioned at high voltage winding group line in described ceramic matrix
Position between circle and low pressure winding coil also forms 3 groups of cooling pipes；
Described ceramic matrix is prepared by 3D Method of printing, comprises the following steps successively:
1) preparation includes low temperature bonding agent, middle temperature binding agent and the printed material granule of ceramics；By ceramics, low temperature bonding
Agent, middle temperature binding agent according to weight ratio be: is prefabricated into granule after the ratio uniform mixing of 92:7:1；Described ceramics is aluminium oxide
Porcelain, described low temperature bonding agent is Tissuemat E, and described middle temperature binding agent is inorganic silicate；Described granule includes bulky grain and little
Granule, bulky grain is 200 mesh, and little granule is 500 mesh, and bulky grain and short grained weight ratio are 2:7；
2) use 3D printing device based on heat of solution lamination method that described printed material is made base substrate；To base substrate outer wall and
Coil channel and lead-out wire formed pipe in base substrate carry out soaking glaze；
3) upper step base substrate being carried out intermediate sintering temperature, sintering temperature is 500 DEG C, by the evaporation space formed between described granule,
Low temperature bonding agent in evaporation base substrate, obtains once sintered part；
4) described once sintered part being carried out high temperature sintering, sintering temperature is 1300 DEG C, obtains ceramic matrix；
After ceramic matrix sinter molding, carry out the molding of winding coil:
1) keep kiln temperature at 1200 DEG C, in coil channel, be filled with nitrogen by lead-out wire formed pipe, then from lead-out wire molding
Pipe injects melted copper water in coil channel, fills the outer end to all lead-out wire formed pipes to copper water；
2) lowering the temperature after winding coil molding, a 1st hour cooling rate controls at 5 DEG C per minute, subsequent 2 hours every point
Clock lower the temperature 3 DEG C, cooling per minute of the lower time that connects 1 DEG C, after less than 200 DEG C, cooling per minute 3 DEG C, to kiln temperature be less than 80 DEG C time
Kiln discharge；
The side of described ceramic matrix forms the oil-in and oil-out being connected with each group of cooling pipe, and oil-in respectively
Near the lower end of ceramic matrix, oil-out is near the upper end of ceramic matrix；
The bottom of described casing is fixedly connected with horizontally disposed support, and the side of described casing connects longitudinally disposed entirety
U-shaped multiple radiating tubes, radiating tube two ends are connected with in casing；It is positioned at outside casing on support and 3 oil pumps, oil pump are installed
Liquid outlet be connected with oil-in by inflow pipeline, the inlet of oil pump passes through oil-absorbing pipeline and connects with lower box；Described
Inflow pipeline through casing and is connected with box sealing；
Described case is filled with transformer oil, and lid is arranged above conservator, and the liquid level of transformer oil is positioned at the inner top of conservator.
As preferably: described oil pump includes centrifugal pump shell, the impeller being rotatably installed in centrifugal pump shell, fixing connection
At the piston pump case of centrifugal pump shell one end, it is slidably mounted on the piston piece in piston pump case, and is fixedly connected on centrifugal pump shell
The motor in order to drive impeller and piston piece of the other end；
On described motor connect have a link, described centrifugal pump shell outer wall integrally formed with union joint, described union joint with
It is connected by screw between link；The sidewall of described centrifugal pump shell forms liquid outlet；
Connect on the output shaft of described motor and have a driving rotating disk, drive rotating disk close but do not contact one end of centrifugal pump shell,
Drive and on rotating disk, be fixedly connected with multiple drive magnet arranged with circumference array；
Described impeller includes impeller substrate, impeller substrate is fixedly connected with corresponding with drive magnet position multiple from
Moving magnet, on impeller substrate, the position between adjacent two driven magnet forms blade, away from leaf between each blade
One end of wheel substrate is integrally formed with an annular driving circle, and on driving circle, the one end away from blade forms 3 along spiral
Line direction arrange driving inclined-plane, each drive inclined-plane tip position be provided with buffering Magnet a；
Described piston piece includes piston body, and piston body is connected by 3-4 connection post near one end of impeller has one with alive
The sliding bar that cock body is coaxial, the end of sliding bar connects a ratchet assembly, ratchet assembly connects and has a piston linkage
Part；Described piston STATEMENT OF FEDERALLY SPONSORED includes and outreaches moving-coil and fix the interior clamping ring being connected with ratchet assembly, and one connects and outreaches
Moving-coil and the dowel of interior clamping ring；Described 3 the driven inclined-planes forming on moving-coil with driving inclined-plane to match that outreach, driven
The root position on inclined-plane is provided with the buffering Magnet b oppositely arranged with buffering Magnet a magnetic direction；
Described ratchet assembly includes the inner ring and outer ring being rotationally connected by bearing, and outer ring inwall forms ratchet, on inner ring
The ratchet coordinated with ratchet is installed；Described sliding bar is fixing with inner ring to be connected, and described piston STATEMENT OF FEDERALLY SPONSORED is connected with outer ring；Piston
STATEMENT OF FEDERALLY SPONSORED is in rotary state with ratchet assembly when driving circle to rotate, ratchet assembly when piston STATEMENT OF FEDERALLY SPONSORED encloses relative slip with driving
It is in lockup state；
Being installed with a piston locating rack in described piston pump case, piston locating rack includes inner ring body and polygonized structure
Outer ring body, between inner ring body and outer ring body by 3-5 connect rib be connected as a single entity；Non-cylindrical described sliding bar is with interior
Circle body is slidably connected；
The end of described piston pump case connects a check valve, and on described piston body, the one end away from sliding bar forms spring
Utensil receiving opening, is provided with a spring between spring utensil receiving opening and check valve；
The intermediary form of described check valve has the bellmouth a of outer narrow inner width, and the outer end that check valve is positioned at bellmouth a forms one
Individual centring ring a, the inner that check valve is positioned at bellmouth a is provided with a valve block backstop frame a；It is provided with in described bellmouth a
One valve block a；Valve block a is permanent magnet, and centring ring a is pasted with the iron plate attracted with valve block a；
The intermediary form of described piston body has the bellmouth b of an outer narrow inner width, and piston body is positioned at the outer end molding of bellmouth b
Having a centring ring b, the inner that piston body is positioned at bellmouth b is provided with a valve block backstop frame b；Peace in described bellmouth b
Equipped with a valve block b；Valve block b is permanent magnet, and centring ring b is pasted with the iron plate that iron plate is attracted with valve block b.
Invention additionally discloses another kind of three-phase transformer, it is characterised in that: include the casing of upper end open, fixing seal
It is connected to the lid of casing upper end, the iron core being fixedly mounted on casing inner bottom part and the winding group being fixedly mounted on iron core
Part；
Described iron core includes 3 longitudinally disposed stem stems and is connected to the horizontally disposed ferrum of each stem stem upper and lower end parts
Yoke；The iron yoke bottom connection being positioned at lower end on described iron core has base, base to be connected with casing inner bottom part；
The bottom of described casing is fixedly connected with horizontally disposed support, and the side of described casing connects longitudinally disposed entirety
U-shaped multiple radiating tubes, radiating tube two ends are connected with in casing；It is positioned at outside casing on support and 3 oil pumps, oil pump are installed
Liquid outlet connected with the radiating tube upper end on casing top by inflow pipeline, the inlet of oil pump is by oil-absorbing pipeline and casing
Top connects；Described inflow pipeline through casing and is connected with box sealing；
Described case is filled with transformer oil, and lid is arranged above conservator, and the liquid level of transformer oil is positioned at the inner top of conservator；
Described oil pump includes centrifugal pump shell, the impeller being rotatably installed in centrifugal pump shell, is fixedly connected on centrifugal pump shell one
The piston pump case of end, is slidably mounted on the piston piece in piston pump case, and be fixedly connected on the centrifugal pump shell other end in order to
Drive impeller and the motor of piston piece；
On described motor connect have a link, described centrifugal pump shell outer wall integrally formed with union joint, described union joint with
It is connected by screw between link；The sidewall of described centrifugal pump shell forms liquid outlet；
Connect on the output shaft of described motor and have a driving rotating disk, drive rotating disk close but do not contact one end of centrifugal pump shell,
Drive and on rotating disk, be fixedly connected with multiple drive magnet arranged with circumference array；
Described impeller includes impeller substrate, impeller substrate is fixedly connected with corresponding with drive magnet position multiple from
Moving magnet, on impeller substrate, the position between adjacent two driven magnet forms blade, away from leaf between each blade
One end of wheel substrate is integrally formed with an annular driving circle, and on driving circle, the one end away from blade forms 3 along spiral
Line direction arrange driving inclined-plane, each drive inclined-plane tip position be provided with buffering Magnet a；
Described piston piece includes piston body, and piston body is connected by 3-4 connection post near one end of impeller has one with alive
The sliding bar that cock body is coaxial, the end of sliding bar connects a ratchet assembly, ratchet assembly connects and has a piston linkage
Part；Described piston STATEMENT OF FEDERALLY SPONSORED includes and outreaches moving-coil and fix the interior clamping ring being connected with ratchet assembly, and one connects and outreaches
Moving-coil and the dowel of interior clamping ring；Described 3 the driven inclined-planes forming on moving-coil with driving inclined-plane to match that outreach, driven
The root position on inclined-plane is provided with the buffering Magnet b oppositely arranged with buffering Magnet a magnetic direction；
Described ratchet assembly includes the inner ring and outer ring being rotationally connected by bearing, and outer ring inwall forms ratchet, on inner ring
The ratchet coordinated with ratchet is installed；Described sliding bar is fixing with inner ring to be connected, and described piston STATEMENT OF FEDERALLY SPONSORED is connected with outer ring；Piston
STATEMENT OF FEDERALLY SPONSORED is in rotary state with ratchet assembly when driving circle to rotate, ratchet assembly when piston STATEMENT OF FEDERALLY SPONSORED encloses relative slip with driving
It is in lockup state；
Being installed with a piston locating rack in described piston pump case, piston locating rack includes inner ring body and polygonized structure
Outer ring body, between inner ring body and outer ring body by 3-5 connect rib be connected as a single entity；Non-cylindrical described sliding bar is with interior
Circle body is slidably connected；
The end of described piston pump case connects a check valve, and on described piston body, the one end away from sliding bar forms spring
Utensil receiving opening, is provided with a spring between spring utensil receiving opening and check valve；
The intermediary form of described check valve has the bellmouth a of outer narrow inner width, and the outer end that check valve is positioned at bellmouth a forms one
Individual centring ring a, the inner that check valve is positioned at bellmouth a is provided with a valve block backstop frame a；It is provided with in described bellmouth a
One valve block a；Valve block a is permanent magnet, and centring ring a is pasted with the iron plate attracted with valve block a；
The intermediary form of described piston body has the bellmouth b of an outer narrow inner width, and piston body is positioned at the outer end molding of bellmouth b
Having a centring ring b, the inner that piston body is positioned at bellmouth b is provided with a valve block backstop frame b；Peace in described bellmouth b
Equipped with a valve block b；Valve block b is permanent magnet, and centring ring b is pasted with the iron plate that iron plate is attracted with valve block b.
Compared with prior art, the invention has the beneficial effects as follows: the ceramic matrix of the present invention is by the way of 3d prints
Molding, and directly directly form winding coil, winding toward injection copper water in coil channel while ceramic matrix has sintered
Coil and ceramic matrix are cooled to become the winding coil of solid-state simultaneously.Compared with No. 201010169512.2 patents, eliminate
Coiling and artificial ceramic matrix is carried out moulding process, and machining accuracy is more guaranteed, is suitable to industrialized mass production.
Compared with No. 201510047881.7 patents, present invention employs new technique and enable the winding assembly of 3d printing manufacture to have
Wider application field it addition, present invention employs new structure oil pump driving transformer oil transformator is cooled down,
When transformer temperature is relatively low, transformer oil heat exchange amount is few, and oil pump uses the working method driving transformer oil slowly stream of piston pump
Move and can meet radiating requirements (when required flow rate is less, the working method of centrifugal pump relatively piston pump takes electricity)；In transformator temperature
Spending big compared with transformer oil heat exchange amount time high, oil pump uses the working method of centrifugal pump, has saved electric energy on the whole.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
Fig. 2, Fig. 3 are the sectional structure schematic diagrams of the present invention.
Fig. 4 is the structural representation of iron core and winding assembly.
Fig. 5 is the structural representation of winding assembly.
Fig. 6 is the sectional structure schematic diagram of winding assembly.
Fig. 7 is the A portion schematic enlarged-scale view of Fig. 6.
Fig. 8 is the structural representation of ceramic matrix lead-out wire formed pipe part.
Fig. 9, Figure 10 are the structural representations of oil pump.
Figure 11 is the internal structure schematic diagram of oil pump.
Figure 12 is the decomposition texture schematic diagram of oil pump.
Figure 13 is impeller and the structural representation of piston STATEMENT OF FEDERALLY SPONSORED.
Figure 14 is the structural representation of piston STATEMENT OF FEDERALLY SPONSORED.
Figure 15 is the structural representation of piston piece.
Figure 16 is the structural representation of check valve.
1, casing；10, support；11, radiating tube；2, lid；31, high-tension insulating bushing；32, low-voltage insulation sleeve pipe；4, oil
Pillow；5, winding assembly；50, ceramic matrix；51, high pressure winding leading-out wire；52, low pressure winding leading-out wire；53, oil-in；54, go out
Hydraulic fluid port；55, high pressure winding coil；551, high pressure winding connecting line；56, low pressure winding coil；561, low pressure winding connecting line；
57, cooling pipe；58, the neutral conductor；59, lead-out wire formed pipe；6, iron core；61, base；8, oil pump；80, ratchet assembly；81, electricity
Machine；811, rotating disk is driven；812, link；813, drive magnet；82, centrifugal pump shell；821, liquid outlet；822, union joint；83、
Piston pump case；84, check valve；8401, bellmouth a；8402, centring ring a；841, valve block a；842, valve block backstop frame a；85, leaf
Wheel；851, impeller substrate；852, driven magnet；853, blade；854, circle is driven；855, inclined-plane is driven；856, buffering Magnet a；
86, piston STATEMENT OF FEDERALLY SPONSORED；861, moving-coil is outreached；862, driven inclined-plane；863, interior clamping ring；864, dowel；865, buffering Magnet
b；87, piston locating rack；88, piston piece；881, piston body；8811, spring utensil receiving opening；8812, bellmouth b；8813, centring ring
b；882, valve block b；883, valve block backstop frame b；884, post is connected；885, sliding bar；89；Spring.
Detailed description of the invention
Embodiment 1
According to shown in Fig. 1 to Fig. 8, the present embodiment is a kind of three-phase transformer, includes the casing 1 of upper end open, fixing seal
It is connected to the lid 2 of casing upper end, the iron core 6 being fixedly mounted on casing inner bottom part and the winding group being fixedly mounted on iron core
Part 5.
Described iron core includes 3 longitudinally disposed stem stems and is connected to being horizontally disposed with of each stem stem upper and lower end parts
Iron yoke；The iron yoke bottom connection being positioned at lower end on described iron core has base 61, base to be connected with casing inner bottom part.
Described winding assembly includes ceramic matrix 50 and one-body molded 3 groups of high pressure winding coils in ceramic matrix
55 and 3 groups of low pressure winding coils 56, along longitudinally forming 3 ports coordinated with stem stem, low pressure winding coil on ceramic matrix
Taking shape in the periphery of port, high pressure winding coil is in the periphery of low pressure winding coil；One end of each high pressure winding coil leads to
Crossing high pressure winding connecting line 551 to be connected, one end of each low pressure winding coil is connected by low pressure winding connecting line 561,
Connect on low pressure winding connecting line and have the neutral conductor 58；The other end of each high pressure winding coil is respectively high pressure winding leading-out wire
51, the other end of each low pressure winding coil is respectively low pressure winding leading-out wire 52, and described lid has been respectively fixedly connected with 3
High-tension insulating bushing 31 and 3 low-voltage insulation sleeve pipes 32, each high pressure winding leading-out wire passes from high-tension insulating bushing, and each is low
Pressure winding leading-out wire passes from low-voltage insulation sleeve pipe.
Form in described ceramic matrix in order to high pressure winding coil, low pressure winding coil, high pressure winding described in molding even
Wiring and the coil channel of low pressure winding connecting line, described ceramic matrix also forms and draws in order to high pressure winding described in molding
The lead-out wire formed pipe 59 of outlet, low pressure winding leading-out wire and the neutral conductor；At least it is being positioned at high voltage winding in described ceramic matrix
Position between group coil and low pressure winding coil also forms 3 groups of cooling pipes 57.
Described lead-out wire formed pipe uses after high pressure winding leading-out wire, low pressure winding leading-out wire, neutral conductor molding
Break-in tool is smashed dismounting.
Described ceramic matrix is prepared by 3D Method of printing, comprises the following steps successively:
1) preparation includes low temperature bonding agent, middle temperature binding agent and the printed material granule of ceramics；By ceramics, low temperature bonding
Agent, middle temperature binding agent according to weight ratio be: is prefabricated into granule after the ratio uniform mixing of 92:7:1；Described ceramics is aluminium oxide
Porcelain, described low temperature bonding agent is Tissuemat E, and described middle temperature binding agent is inorganic silicate；Described granule includes bulky grain and little
Granule, bulky grain is 200 mesh, and little granule is 500 mesh, and bulky grain and short grained weight ratio are 2:7；
2) use 3D printing device based on heat of solution lamination method that described printed material is made base substrate；To base substrate outer wall and
Coil channel and lead-out wire formed pipe in base substrate carry out soaking glaze；
3) upper step base substrate being carried out intermediate sintering temperature, sintering temperature is 500 DEG C, by the evaporation space formed between described granule,
Low temperature bonding agent in evaporation base substrate, obtains once sintered part；
4) described once sintered part being carried out high temperature sintering, sintering temperature is 1300 DEG C, obtains ceramic matrix.
The manufacture method of above-mentioned ceramic matrix have employed the parameter of optimum so that the volume of ceramic matrix compares base substrate reduction
Degree is minimum, and little granule is oarse-grained about 3.5 times, so on the premise of guaranteeing that low temperature bonding agent can distil smoothly,
Guarantee hardness and the compactness of ceramic matrix to greatest extent.
After ceramic matrix sinter molding, carry out winding coil (including described high pressure winding coil and low pressure winding coil)
Molding:
1) keep kiln temperature at 1200 DEG C, in coil channel, be filled with nitrogen by lead-out wire formed pipe, then from lead-out wire molding
Pipe injects melted copper water in coil channel, fills the outer end to all lead-out wire formed pipes to copper water；
2) lowering the temperature after winding coil molding, a 1st hour cooling rate controls at 5 DEG C per minute, subsequent 2 hours every point
Clock lower the temperature 3 DEG C, cooling per minute of the lower time that connects 1 DEG C, after less than 200 DEG C, cooling per minute 3 DEG C, to kiln temperature be less than 80 DEG C time
Kiln discharge.
Described nitrogen is used for starvation, it is to avoid electric conductivity is impacted by the oxidation of copper water.Described winding coil is at pottery
Carry out immediately after porcelain basal body sinter molding, it is not necessary to additionally ceramic matrix is preheated, save the energy；And copper water and ceramic matrix
Cooling down simultaneously, and rate of cooling is through overtesting, have employed optimal parameter, it is to avoid ceramic matrix expands system with copper hydro-thermal
Number is different and causes ceramic matrix the most damaged by excessive stresses.
The side of described ceramic matrix forms the oil-in 53 and oil-out 54 being connected with each group of cooling pipe respectively,
And oil-in is near the lower end of ceramic matrix, oil-out is near the upper end of ceramic matrix.
The bottom of described casing is fixedly connected with horizontally disposed support 10, and the side connection of described casing has longitudinally disposed
The U-shaped multiple radiating tubes 11 of entirety, radiating tube two ends are connected with in casing；It is positioned at outside casing on support and is provided with 3
Oil pump 8, the liquid outlet of oil pump is connected with oil-in by inflow pipeline, and the inlet of oil pump passes through oil-absorbing pipeline and lower box
Connection；Described inflow pipeline through casing and is connected with box sealing；
Described case is filled with transformer oil, and lid is arranged above conservator 4, and the liquid level of transformer oil is positioned at the top of conservator
Portion.
Cooling pipe in described ceramic matrix can utilize the heat band that winding coil is produced by transformer oil in time
Walk, it is ensured that transformator stable operation at a lower temperature.
Embodiment 2
Described oil pump, on the basis of embodiment 1, is made improvement further, specifically: combine Fig. 9 to Figure 16 institute by the present embodiment
Showing, described oil pump 8 includes centrifugal pump shell 82, and the impeller 85 being rotatably installed in centrifugal pump shell is fixedly connected on centrifugal pump
The piston pump case 83 of shell one end, the piston piece 88 being slidably mounted in piston pump case, and be fixedly connected on centrifugal pump shell another
The motor 81 in order to drive impeller and piston piece of end.
Connecting on described motor and have a link 812, described centrifugal pump shell outer wall is integrally formed with union joint 822, institute
State and be connected by screw between union joint and link；The sidewall of described centrifugal pump shell forms liquid outlet 821.
Connect on the output shaft of described motor and have a driving rotating disk 811, drive rotating disk close but do not contact centrifugal pump shell
One end, drive and be fixedly connected with multiple drive magnet 813 arranged with circumference array on rotating disk.
Described impeller includes impeller substrate 851, impeller substrate is fixedly connected with corresponding with drive magnet position
Multiple driven magnet 852, on impeller substrate, the position between adjacent two driven magnet forms blade 853, each
Away from one end of impeller substrate integrally formed with an annular driving circle 854 between blade, drive on circle away from the one of blade
End form 3 along hand of helix arrange driving inclined-plane 855, each drive inclined-plane tip position buffering magnetic is installed
Ferrum a856.
Described piston piece includes piston body 881, and piston body is connected by 3-4 connection post 884 near one end of impeller
Having a sliding bar 885 coaxial with piston body, the end of sliding bar connects a ratchet assembly 80, and ratchet assembly connects
There is a piston STATEMENT OF FEDERALLY SPONSORED 86；Described piston STATEMENT OF FEDERALLY SPONSORED includes and outreaches moving-coil 861 and fix the interior connection being connected with ratchet assembly
Circle 863, and integrally connect the dowel 864 outreaching moving-coil and interior clamping ring；Described outreaching forms on moving-coil and drives tiltedly
3 the driven inclined-planes 862 matched in face, the root position on driven inclined-plane is provided with to buffer Magnet a magnetic direction oppositely arranged
Buffering Magnet b865.
Described ratchet assembly includes the inner ring and outer ring being rotationally connected by bearing, and outer ring inwall forms ratchet, interior
The ratchet coordinated with ratchet is installed on circle；Described sliding bar is fixing with inner ring to be connected, and described piston STATEMENT OF FEDERALLY SPONSORED is connected with outer ring；
Piston STATEMENT OF FEDERALLY SPONSORED is in rotary state with ratchet assembly when driving circle to rotate, ratchet when piston STATEMENT OF FEDERALLY SPONSORED encloses relative slip with driving
Assembly is in lockup state.
Being installed with a piston locating rack 87 in described piston pump case 83, piston locating rack includes inner ring body with many
The outer ring body of limit shape structure, connects rib by 3-5 between inner ring body and outer ring body and is connected as a single entity；Non-cylindrical described cunning
Lever is slidably connected with inner ring body.
The end of described piston pump case connects has a check valve 84, away from one end molding of sliding bar on described piston body
There is spring utensil receiving opening, a spring 89 is installed between spring utensil receiving opening and check valve.
The intermediary form of described check valve has the bellmouth a8401 of outer narrow inner width, and check valve is positioned at the outer end of bellmouth a
Forming a centring ring a8402, the inner that check valve is positioned at bellmouth a is provided with a valve block backstop frame a842；Described
One valve block a841 is installed in bellmouth a；Valve block a is permanent magnet, and centring ring a is pasted with the iron plate attracted with valve block a.
The intermediary form of described piston body has the bellmouth b8812 of an outer narrow inner width, piston body is positioned at bellmouth b's
Outer end forms a centring ring b8813, and the inner that piston body is positioned at bellmouth b is provided with a valve block backstop frame b883；
One valve block b882 is installed in described bellmouth b；Valve block b is permanent magnet, centring ring b is pasted with iron plate attracting with valve block b
The iron plate closed.
Temperature sensor, temperature sensor and oil pump and a control circuit are installed on described ceramic matrix or casing
Plate connects, and control circuit buttress is according to the working method of the signal control oil pump of temperature sensor.
Oil pump has two kinds of working methods, and when temperature is higher than switching temperature value, oil pump works in centrifugal pump mode, works as temperature
When degree is less than switching temperature value, oil pump works in piston pump mode.
Below the working method of oil pump is illustrated:
As shown in figure 11, when motor rotates counterclockwise, for piston pump working method, drive rotating disk to rotate and drive drive magnet to turn
Dynamic, drive magnet drive installation has the impeller of driven magnet to rotate counterclockwise, and drives the driving inclined-plane opposing pistons linkage on circle
Driven inclined-plane on part slides, and now ratchet assembly does not rotates, thus drives piston STATEMENT OF FEDERALLY SPONSORED to move downward together with piston piece, this
Time valve block b and centring ring b depart from, transformer oil flows up；When driving inclined-plane to depart from driven inclined-plane, piston piece is at spring
Upwards resetting under effect, now valve block b props up with centring ring b, and valve block a opens, and transformer oil enters between valve block a and valve block b
Space.
Described buffering Magnet a and buffering Magnet b, by magnetic field repulsive force, makes driving inclined-plane and driven inclined-plane from departing to again
Shock will not be produced during laminating, be beneficial to ensure the service life of oil pump.
When motor rotates clockwise, for the working method of centrifugal pump, fit all the time with driving inclined-plane in the most driven inclined-plane,
Impeller drive piston STATEMENT OF FEDERALLY SPONSORED rotate together with, now ratchet assembly be in the state of relatively rotating, valve block a and valve block b respectively with
Centring ring a, centring ring b are constantly in disengaged position, enable centrifugal pump to continue normally and work.
When transformer temperature is relatively low, transformer oil need not quickly flow, if now using the working method of centrifugal pump,
More take electricity, use piston pump working method, on the premise of reaching expection cooling-down effect, can save energy more than 20%.
Embodiment 3
According to Fig. 1, Fig. 2, Fig. 9 to Figure 16, the present embodiment is a kind of three-phase transformer, includes the casing 1 of upper end open,
Fixed seal connection, at the lid 2 of casing upper end, is fixedly mounted on the iron core 6 of casing inner bottom part and is fixedly mounted on iron core
Winding assembly 5.
Described iron core includes 3 longitudinally disposed stem stems and is connected to being horizontally disposed with of each stem stem upper and lower end parts
Iron yoke；The iron yoke bottom connection being positioned at lower end on described iron core has base 61, base to be connected with casing inner bottom part.
The bottom of described casing is fixedly connected with horizontally disposed support 10, and the side connection of described casing has longitudinally disposed
The U-shaped multiple radiating tubes 11 of entirety, radiating tube two ends are connected with in casing；It is positioned at outside casing on support and is provided with 3
Oil pump 8, the liquid outlet of oil pump is connected with the radiating tube upper end on casing top by inflow pipeline, and the inlet of oil pump passes through oil suction
Pipeline connects with casing top；Described inflow pipeline through casing and is connected with box sealing；
Described case is filled with transformer oil, and lid is arranged above conservator 4, and the liquid level of transformer oil is positioned at the top of conservator
Portion.
Described oil pump 8 includes centrifugal pump shell 82, the impeller 85 being rotatably installed in centrifugal pump shell, be fixedly connected on from
The piston pump case 83 of heart pump case one end, the piston piece 88 being slidably mounted in piston pump case, and it is fixedly connected on centrifugal pump shell
The motor 81 in order to drive impeller and piston piece of the other end.
Connecting on described motor and have a link 812, described centrifugal pump shell outer wall is integrally formed with union joint 822, institute
State and be connected by screw between union joint and link；The sidewall of described centrifugal pump shell forms liquid outlet 821.
Connect on the output shaft of described motor and have a driving rotating disk 811, drive rotating disk close but do not contact centrifugal pump shell
One end, drive and be fixedly connected with multiple drive magnet 813 arranged with circumference array on rotating disk.
Described impeller includes impeller substrate 851, impeller substrate is fixedly connected with corresponding with drive magnet position
Multiple driven magnet 852, on impeller substrate, the position between adjacent two driven magnet forms blade 853, each
Away from one end of impeller substrate integrally formed with an annular driving circle 854 between blade, drive on circle away from the one of blade
End form 3 along hand of helix arrange driving inclined-plane 855, each drive inclined-plane tip position buffering magnetic is installed
Ferrum a856.
Described piston piece includes piston body 881, and piston body is connected by 3-4 connection post 884 near one end of impeller
Having a sliding bar 885 coaxial with piston body, the end of sliding bar connects a ratchet assembly 80, and ratchet assembly connects
There is a piston STATEMENT OF FEDERALLY SPONSORED 86；Described piston STATEMENT OF FEDERALLY SPONSORED includes and outreaches moving-coil 861 and fix the interior connection being connected with ratchet assembly
Circle 863, and integrally connect the dowel 864 outreaching moving-coil and interior clamping ring；Described outreaching forms on moving-coil and drives tiltedly
3 the driven inclined-planes 862 matched in face, the root position on driven inclined-plane is provided with to buffer Magnet a magnetic direction oppositely arranged
Buffering Magnet b865.
Described ratchet assembly includes the inner ring and outer ring being rotationally connected by bearing, and outer ring inwall forms ratchet, interior
The ratchet coordinated with ratchet is installed on circle；Described sliding bar is fixing with inner ring to be connected, and described piston STATEMENT OF FEDERALLY SPONSORED is connected with outer ring；
Piston STATEMENT OF FEDERALLY SPONSORED is in rotary state with ratchet assembly when driving circle to rotate, ratchet when piston STATEMENT OF FEDERALLY SPONSORED encloses relative slip with driving
Assembly is in lockup state.
Being installed with a piston locating rack 87 in described piston pump case 83, piston locating rack includes inner ring body with many
The outer ring body of limit shape structure, connects rib by 3-5 between inner ring body and outer ring body and is connected as a single entity；Non-cylindrical described cunning
Lever is slidably connected with inner ring body.
The end of described piston pump case connects has a check valve 84, away from one end molding of sliding bar on described piston body
There is spring utensil receiving opening, a spring 89 is installed between spring utensil receiving opening and check valve.
The intermediary form of described check valve has the bellmouth a8401 of outer narrow inner width, and check valve is positioned at the outer end of bellmouth a
Forming a centring ring a8402, the inner that check valve is positioned at bellmouth a is provided with a valve block backstop frame a842；Described
One valve block a841 is installed in bellmouth a；Valve block a is permanent magnet, and centring ring a is pasted with the iron plate attracted with valve block a.
The intermediary form of described piston body has the bellmouth b8812 of an outer narrow inner width, piston body is positioned at bellmouth b's
Outer end forms a centring ring b8813, and the inner that piston body is positioned at bellmouth b is provided with a valve block backstop frame b883；
One valve block b882 is installed in described bellmouth b；Valve block b is permanent magnet, centring ring b is pasted with iron plate attracting with valve block b
The iron plate closed.
Temperature sensor, temperature sensor and oil pump are installed on described casing and a control circuit plate connects, control
Circuit board is according to the working method of the signal control oil pump of temperature sensor.
Oil pump has two kinds of working methods, and when temperature is higher than switching temperature value, oil pump works in centrifugal pump mode, works as temperature
When degree is less than switching temperature value, oil pump works in piston pump mode.
Below the working method of oil pump is illustrated:
As shown in figure 11, when motor rotates counterclockwise, for piston pump working method, drive rotating disk to rotate and drive drive magnet to turn
Dynamic, drive magnet drive installation has the impeller of driven magnet to rotate counterclockwise, and drives the driving inclined-plane opposing pistons linkage on circle
Driven inclined-plane on part slides, and now ratchet assembly does not rotates, thus drives piston STATEMENT OF FEDERALLY SPONSORED to move downward together with piston piece, this
Time valve block b and centring ring b depart from, transformer oil flows up；When driving inclined-plane to depart from driven inclined-plane, piston piece is at spring
Upwards resetting under effect, now valve block b props up with centring ring b, and valve block a opens, and transformer oil enters between valve block a and valve block b
Space.
Described buffering Magnet a and buffering Magnet b, by magnetic field repulsive force, makes driving inclined-plane and driven inclined-plane from departing to again
Shock will not be produced during laminating, be beneficial to ensure the service life of oil pump.
When motor rotates clockwise, for the working method of centrifugal pump, fit all the time with driving inclined-plane in the most driven inclined-plane,
Impeller drive piston STATEMENT OF FEDERALLY SPONSORED rotate together with, now ratchet assembly be in the state of relatively rotating, valve block a and valve block b respectively with
Centring ring a, centring ring b are constantly in disengaged position, enable centrifugal pump to continue normally and work.
When transformer temperature is relatively low, transformer oil need not quickly flow, if now using the working method of centrifugal pump,
More take electricity, use piston pump working method, on the premise of reaching expection cooling-down effect, can save energy more than 10%.
Claims (3)
1. a three-phase transformer, it is characterised in that: including the casing of upper end open, fixed seal connection is in casing upper end
Lid, the iron core being fixedly mounted on casing inner bottom part and the winding assembly being fixedly mounted on iron core；
Described iron core includes 3 longitudinally disposed stem stems and is connected to the horizontally disposed ferrum of each stem stem upper and lower end parts
Yoke；The iron yoke bottom connection being positioned at lower end on described iron core has base, base to be connected with casing inner bottom part；
Described winding assembly includes ceramic matrix and one-body molded 3 groups of high pressure winding coils in ceramic matrix and 3 groups
Low pressure winding coil, along longitudinally forming 3 ports coordinated with stem stem on ceramic matrix, low pressure winding coil takes shape in port
Periphery, high pressure winding coil is in the periphery of low pressure winding coil；High pressure winding is passed through in one end of each high pressure winding coil
Connecting line is connected, and one end of each low pressure winding coil is connected by low pressure winding connecting line, on low pressure winding connecting line
Connect and have the neutral conductor；The other end of each high pressure winding coil is respectively high pressure winding leading-out wire, each low pressure winding coil
The other end is respectively low pressure winding leading-out wire, described lid has been respectively fixedly connected with 3 high-tension insulating bushings and 3 low pressure are exhausted
Edge sleeve pipe, each high pressure winding leading-out wire passes from high-tension insulating bushing, and each low pressure winding leading-out wire is from low-voltage insulation sleeve pipe
Pass；
Form in described ceramic matrix in order to high pressure winding coil, low pressure winding coil, high pressure winding connecting line described in molding
And the coil channel of low pressure winding connecting line, described ceramic matrix also forms and draws in order to high pressure winding described in molding
The lead-out wire formed pipe of line, low pressure winding leading-out wire and the neutral conductor；At least it is being positioned at high voltage winding group line in described ceramic matrix
Position between circle and low pressure winding coil also forms 3 groups of cooling pipes；
Described ceramic matrix is prepared by 3D Method of printing, comprises the following steps successively:
1) preparation includes low temperature bonding agent, middle temperature binding agent and the printed material granule of ceramics；By ceramics, low temperature bonding
Agent, middle temperature binding agent according to weight ratio be: is prefabricated into granule after the ratio uniform mixing of 92:7:1；Described ceramics is aluminium oxide
Porcelain, described low temperature bonding agent is Tissuemat E, and described middle temperature binding agent is inorganic silicate；Described granule includes bulky grain and little
Granule, bulky grain is 200 mesh, and little granule is 500 mesh, and bulky grain and short grained weight ratio are 2:7；
2) use 3D printing device based on heat of solution lamination method that described printed material is made base substrate；To base substrate outer wall and
Coil channel and lead-out wire formed pipe in base substrate carry out soaking glaze；
3) upper step base substrate being carried out intermediate sintering temperature, sintering temperature is 500 DEG C, by the evaporation space formed between described granule,
Low temperature bonding agent in evaporation base substrate, obtains once sintered part；
4) described once sintered part being carried out high temperature sintering, sintering temperature is 1300 DEG C, obtains ceramic matrix；
After ceramic matrix sinter molding, carry out the molding of winding coil:
1) keep kiln temperature at 1200 DEG C, in coil channel, be filled with nitrogen by lead-out wire formed pipe, then from lead-out wire molding
Pipe injects melted copper water in coil channel, fills the outer end to all lead-out wire formed pipes to copper water；
2) lowering the temperature after winding coil molding, a 1st hour cooling rate controls at 5 DEG C per minute, subsequent 2 hours every point
Clock lower the temperature 3 DEG C, cooling per minute of the lower time that connects 1 DEG C, after less than 200 DEG C, cooling per minute 3 DEG C, to kiln temperature be less than 80 DEG C time
Kiln discharge；
The side of described ceramic matrix forms the oil-in and oil-out being connected with each group of cooling pipe, and oil-in respectively
Near the lower end of ceramic matrix, oil-out is near the upper end of ceramic matrix；
The bottom of described casing is fixedly connected with horizontally disposed support, and the side of described casing connects longitudinally disposed entirety
U-shaped multiple radiating tubes, radiating tube two ends are connected with in casing；It is positioned at outside casing on support and 3 oil pumps, oil pump are installed
Liquid outlet be connected with oil-in by inflow pipeline, the inlet of oil pump passes through oil-absorbing pipeline and connects with lower box；Described
Inflow pipeline through casing and is connected with box sealing；
Described case is filled with transformer oil, and lid is arranged above conservator, and the liquid level of transformer oil is positioned at the inner top of conservator.
2. a kind of three-phase transformer as claimed in claim 1, it is characterised in that: described oil pump includes centrifugal pump shell, turns
The dynamic impeller being arranged in centrifugal pump shell, is fixedly connected on the piston pump case of centrifugal pump shell one end, is slidably mounted on piston pump case
Interior piston piece, and it is fixedly connected on the motor in order to drive impeller and piston piece of the centrifugal pump shell other end；
On described motor connect have a link, described centrifugal pump shell outer wall integrally formed with union joint, described union joint with
It is connected by screw between link；The sidewall of described centrifugal pump shell forms liquid outlet；
Connect on the output shaft of described motor and have a driving rotating disk, drive rotating disk close but do not contact one end of centrifugal pump shell,
Drive and on rotating disk, be fixedly connected with multiple drive magnet arranged with circumference array；
Described impeller includes impeller substrate, impeller substrate is fixedly connected with corresponding with drive magnet position multiple from
Moving magnet, on impeller substrate, the position between adjacent two driven magnet forms blade, away from leaf between each blade
One end of wheel substrate is integrally formed with an annular driving circle, and on driving circle, the one end away from blade forms 3 along spiral
Line direction arrange driving inclined-plane, each drive inclined-plane tip position be provided with buffering Magnet a；
Described piston piece includes piston body, and piston body is connected by 3-4 connection post near one end of impeller has one with alive
The sliding bar that cock body is coaxial, the end of sliding bar connects a ratchet assembly, ratchet assembly connects and has a piston linkage
Part；Described piston STATEMENT OF FEDERALLY SPONSORED includes and outreaches moving-coil and fix the interior clamping ring being connected with ratchet assembly, and one connects and outreaches
Moving-coil and the dowel of interior clamping ring；Described 3 the driven inclined-planes forming on moving-coil with driving inclined-plane to match that outreach, driven
The root position on inclined-plane is provided with the buffering Magnet b oppositely arranged with buffering Magnet a magnetic direction；
Described ratchet assembly includes the inner ring and outer ring being rotationally connected by bearing, and outer ring inwall forms ratchet, on inner ring
The ratchet coordinated with ratchet is installed；Described sliding bar is fixing with inner ring to be connected, and described piston STATEMENT OF FEDERALLY SPONSORED is connected with outer ring；Piston
STATEMENT OF FEDERALLY SPONSORED is in rotary state with ratchet assembly when driving circle to rotate, ratchet assembly when piston STATEMENT OF FEDERALLY SPONSORED encloses relative slip with driving
It is in lockup state；
Being installed with a piston locating rack in described piston pump case, piston locating rack includes inner ring body and polygonized structure
Outer ring body, between inner ring body and outer ring body by 3-5 connect rib be connected as a single entity；Non-cylindrical described sliding bar is with interior
Circle body is slidably connected；
The end of described piston pump case connects a check valve, and on described piston body, the one end away from sliding bar forms spring
Utensil receiving opening, is provided with a spring between spring utensil receiving opening and check valve；
The intermediary form of described check valve has the bellmouth a of outer narrow inner width, and the outer end that check valve is positioned at bellmouth a forms one
Individual centring ring a, the inner that check valve is positioned at bellmouth a is provided with a valve block backstop frame a；It is provided with in described bellmouth a
One valve block a；Valve block a is permanent magnet, and centring ring a is pasted with the iron plate attracted with valve block a；
The intermediary form of described piston body has the bellmouth b of an outer narrow inner width, and piston body is positioned at the outer end molding of bellmouth b
Having a centring ring b, the inner that piston body is positioned at bellmouth b is provided with a valve block backstop frame b；Peace in described bellmouth b
Equipped with a valve block b；Valve block b is permanent magnet, and centring ring b is pasted with the iron plate that iron plate is attracted with valve block b.
3. a three-phase transformer, it is characterised in that: including the casing of upper end open, fixed seal connection is in casing upper end
Lid, the iron core being fixedly mounted on casing inner bottom part and the winding assembly being fixedly mounted on iron core；
Described iron core includes 3 longitudinally disposed stem stems and is connected to the horizontally disposed ferrum of each stem stem upper and lower end parts
Yoke；The iron yoke bottom connection being positioned at lower end on described iron core has base, base to be connected with casing inner bottom part；
The bottom of described casing is fixedly connected with horizontally disposed support, and the side of described casing connects longitudinally disposed entirety
U-shaped multiple radiating tubes, radiating tube two ends are connected with in casing；It is positioned at outside casing on support and 3 oil pumps, oil pump are installed
Liquid outlet connect with the radiating tube on casing top by inflow pipeline, the inlet of oil pump passes through oil-absorbing pipeline and casing top
Connection；Described inflow pipeline through casing and is connected with box sealing；
Described case is filled with transformer oil, and lid is arranged above conservator, and the liquid level of transformer oil is positioned at the inner top of conservator；
Described oil pump includes centrifugal pump shell, the impeller being rotatably installed in centrifugal pump shell, is fixedly connected on centrifugal pump shell one
The piston pump case of end, is slidably mounted on the piston piece in piston pump case, and be fixedly connected on the centrifugal pump shell other end in order to
Drive impeller and the motor of piston piece；
On described motor connect have a link, described centrifugal pump shell outer wall integrally formed with union joint, described union joint with
It is connected by screw between link；The sidewall of described centrifugal pump shell forms liquid outlet；
Connect on the output shaft of described motor and have a driving rotating disk, drive rotating disk close but do not contact one end of centrifugal pump shell,
Drive and on rotating disk, be fixedly connected with multiple drive magnet arranged with circumference array；
Described impeller includes impeller substrate, impeller substrate is fixedly connected with corresponding with drive magnet position multiple from
Moving magnet, on impeller substrate, the position between adjacent two driven magnet forms blade, away from leaf between each blade
One end of wheel substrate is integrally formed with an annular driving circle, and on driving circle, the one end away from blade forms 3 along spiral
Line direction arrange driving inclined-plane, each drive inclined-plane tip position be provided with buffering Magnet a；
Described piston piece includes piston body, and piston body is connected by 3-4 connection post near one end of impeller has one with alive
The sliding bar that cock body is coaxial, the end of sliding bar connects a ratchet assembly, ratchet assembly connects and has a piston linkage
Part；Described piston STATEMENT OF FEDERALLY SPONSORED includes and outreaches moving-coil and fix the interior clamping ring being connected with ratchet assembly, and one connects and outreaches
Moving-coil and the dowel of interior clamping ring；Described 3 the driven inclined-planes forming on moving-coil with driving inclined-plane to match that outreach, driven
The root position on inclined-plane is provided with the buffering Magnet b oppositely arranged with buffering Magnet a magnetic direction；
Described ratchet assembly includes the inner ring and outer ring being rotationally connected by bearing, and outer ring inwall forms ratchet, on inner ring
The ratchet coordinated with ratchet is installed；Described sliding bar is fixing with inner ring to be connected, and described piston STATEMENT OF FEDERALLY SPONSORED is connected with outer ring；Piston
STATEMENT OF FEDERALLY SPONSORED is in rotary state with ratchet assembly when driving circle to rotate, ratchet assembly when piston STATEMENT OF FEDERALLY SPONSORED encloses relative slip with driving
It is in lockup state；
Being installed with a piston locating rack in described piston pump case, piston locating rack includes inner ring body and polygonized structure
Outer ring body, between inner ring body and outer ring body by 3-5 connect rib be connected as a single entity；Non-cylindrical described sliding bar is with interior
Circle body is slidably connected；
The end of described piston pump case connects a check valve, and on described piston body, the one end away from sliding bar forms spring
Utensil receiving opening, is provided with a spring between spring utensil receiving opening and check valve；
The intermediary form of described check valve has the bellmouth a of outer narrow inner width, and the outer end that check valve is positioned at bellmouth a forms one
Individual centring ring a, the inner that check valve is positioned at bellmouth a is provided with a valve block backstop frame a；It is provided with in described bellmouth a
One valve block a；Valve block a is permanent magnet, and centring ring a is pasted with the iron plate attracted with valve block a；
The intermediary form of described piston body has the bellmouth b of an outer narrow inner width, and piston body is positioned at the outer end molding of bellmouth b
Having a centring ring b, the inner that piston body is positioned at bellmouth b is provided with a valve block backstop frame b；Peace in described bellmouth b
Equipped with a valve block b；Valve block b is permanent magnet, and centring ring b is pasted with the iron plate that iron plate is attracted with valve block b.
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|---|---|---|---|
| CN201610512848.1A CN106205965A (en) | 2016-06-27 | 2016-06-27 | A kind of three-phase transformer |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610512848.1A CN106205965A (en) | 2016-06-27 | 2016-06-27 | A kind of three-phase transformer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2020021907A (en) * | 2018-08-03 | 2020-02-06 | 東芝インフラシステムズ株式会社 | Mold type static induction device |
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| CN101834058A (en) * | 2010-05-12 | 2010-09-15 | 济南特变电气有限公司 | Fully-closed ceramic sintered dry-type transformer coil and manufacturing method thereof |
| CN103817767A (en) * | 2014-03-14 | 2014-05-28 | 邓湘凌 | Method for manufacturing ceramic products with 3D printing technology |
| CN104625072A (en) * | 2015-01-30 | 2015-05-20 | 上海交通大学 | Method for 3D printing of electromagnetic coil |
| CN204390844U (en) * | 2015-03-06 | 2015-06-10 | 内江新内变压器有限公司 | A kind of low noise plate type air flow-guiding radiation transformer |
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