CN108250410A - Integrated transformer platform prefabricated busbar and preparation method thereof - Google Patents
Integrated transformer platform prefabricated busbar and preparation method thereof Download PDFInfo
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- CN108250410A CN108250410A CN201810054150.9A CN201810054150A CN108250410A CN 108250410 A CN108250410 A CN 108250410A CN 201810054150 A CN201810054150 A CN 201810054150A CN 108250410 A CN108250410 A CN 108250410A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
- C08G59/18—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
- C08G59/40—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the curing agents used
- C08G59/42—Polycarboxylic acids; Anhydrides, halides or low molecular weight esters thereof
- C08G59/4215—Polycarboxylic acids; Anhydrides, halides or low molecular weight esters thereof cycloaliphatic
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/02—Organic and inorganic ingredients
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
- C08K3/36—Silica
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/02—Disposition of insulation
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/29—Protection against damage caused by extremes of temperature or by flame
- H01B7/295—Protection against damage caused by extremes of temperature or by flame using material resistant to flame
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/46—Bases; Cases
- H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
- H01R13/5202—Sealing means between parts of housing or between housing part and a wall, e.g. sealing rings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/73—Means for mounting coupling parts to apparatus or structures, e.g. to a wall
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R31/00—Coupling parts supported only by co-operation with counterpart
- H01R31/06—Intermediate parts for linking two coupling parts, e.g. adapter
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
- H01R43/20—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for assembling or disassembling contact members with insulating base, case or sleeve
- H01R43/24—Assembling by moulding on contact members
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Patch Boards (AREA)
Abstract
The invention discloses a kind of integrated transformer platform prefabricated busbar and preparation method thereof, busbar is plugged completed in casting mold it is die-filling；Outdoor flame-retardant epoxy resin and outdoor flame-retardant curing agent are pressed 1:The prefabricated busbar of moulding by casting in die-filling mold is injected after 1 proportioning mixed processing and completes to cure.Wherein, outdoor flame-retardant epoxy resin is：30 50 parts of cycloaliphatic epoxy resin, 1 15 parts of aluminium hydroxide, 30 50 parts of silicon powder, 4 20 parts of halogen-free flame retardants；Outdoor flame-retardant curing agent is：30 50 parts of methyl hexahydrophthalic anhydride, 1 15 parts of aluminium hydroxide, 30 50 parts of silicon powder, 4 15 parts of halogen-free flame retardants.Prefabricated busbar mechanical property and electric property prepared by the technical program is superior, and insulation effect is good, and load-bearing capacity is strong, and flame retardant property is good, simple and reasonable, easy for installation, at low cost.
Description
Technical field
The invention belongs to transformer equipment field more particularly to a kind of integrated transformer platform prefabricated busbar and its preparations
Method.
Background technology
The connection of the existing transformer platform area in China, transformer and comprehensive distribution box is all the connection mode using cable,
It needs to make end during installation, it is time-consuming, take a lot of work, arduously.Along with the high speed development of electric system, to the timely of power supply
The requirement of property, stability and reliability increasingly improves, and rural power grids are generally powered using transformer platform area at present, thus to transformation
The demand of device taiwan area is more and more.State Grid Corporation of China fully implements a scientific outlook on development now, builds " resource-conserving, environment
Friendly " society, improves integrated innovation ability energetically；All-round construction has security reliability, sturdy and durable, rational in infrastructure, skill
Art is advanced, economical and efficient Modern power distribution net.Therefore, research and development manufacture a kind of reasonable design, simple in structure, and can quickly solve one
Bodyization becomes the connection busbar of transformer and comprehensive distribution box in platform, imperative.
The patent document of Publication No. CN107033318 discloses a kind of preform carrier based on integrated transformer platform
Line prepares raw material and method and application, include the copper bar for being set as being connected between transformer module and low-voltage distribution module,
It is arranged on the side surface part of copper bar and for the wrapping layer body of copper bar insulation protection, copper bar inlay absolutely by wrapping layer body
Edge and fixed protection.Wherein, prefabricated busbar is only realized by the connection with transformer and low-tension distribution box and fixed, such preform carrier
The weight of line is all concentrated on the electrical connection position of low-voltage distribution box top and prefabricated busbar and transformer, and physics is fixed not
It is unreliable to be enough securely electrically connected, and easily causes security risk；Also, prefabricated busbar does not have with low-voltage distribution box top binding site
Sealing, rainwater dust, which is easily accessible low-tension distribution box, during outdoor use leads to security risk and electric fault.In addition the knot
Structure volume is big, and electric property and load-bearing capacity need further to be promoted, poor flame retardant properties.
The three-phase and four-line that the patent document of Publication No. CN107033318 discloses a kind of integrated transformer platform is outdoor
The prefabricated busbar of epoxy resin, including：Upper end busbar, busbar connecting component, fixing nut abaculus, outdoor poured with epoxy resin layer,
Outdoor epoxy resin lid, lower end busbar；The upper end busbar is connect with lower end busbar by busbar connecting component, lower end busbar master
Body is wrapped up by outdoor poured with epoxy resin layer.The fixing nut abaculus is poured in the both sides of outdoor poured with epoxy resin layer.Institute
It is 4~8 to state fixing nut abaculus, is symmetrically disposed on the both sides of outdoor poured with epoxy resin layer.Busbar connecting component includes：Tightly
Fixing bolt, plain washer, spring shim, nut.The open air epoxy resin lid is integrally poured into a mould with outdoor poured with epoxy resin layer, position
In whole lower part, coordinate with comprehensive distribution box.The open air epoxy resin lid is umbrella cover body.The prefabricated busbar is in I-shaped
Shape, upper and lower ends are big, and upper end busbar is connect positioned at upper end by busbar connecting component in divergent shape, lower end busbar with lower end busbar
In lower end in divergent shape, outdoor epoxy resin lid is located on the divergent shape of lower end.In the structure, pre-buried fixed spiral shell in prefabricated busbar
Female abaculus, in order to ensure insulation effect and nut abaculus fixation, nut abaculus site volume is larger, and passes through nut spiral shell
Bolt is fixedly connected, and installation is cumbersome, and cost is higher.
Invention content
In order to solve the technical issues of above-mentioned, the object of the present invention is to provide a kind of prefabricated busbares of integrated transformer platform
And preparation method thereof, the prefabricated busbar mechanical property and electric property of preparation are superior, and insulation effect is good, and load-bearing capacity is strong, fire-retardant
Performance is good, simple and reasonable, easy for installation, at low cost.
To achieve the above object, present invention employs following technical solutions：
The preparation method of the prefabricated busbar of integrated transformer platform, which is characterized in that include the following steps：
1) feedstock processing：
Outdoor flame-retardant epoxy resin including following weight parts component：30-50 parts of cycloaliphatic epoxy resin, aluminium hydroxide 1-
15 parts, 30-50 parts of silicon powder, 4-20 parts of halogen-free flame retardants；Each component is added in retort, is stirred at 50-120 DEG C of temperature
60-120 minutes, then degassing dehydration 8 hours or more under the conditions of vacuum 50-1000Pa, releasing mixture was the outdoor flame-retardant
Epoxy resin；
Outdoor flame-retardant curing agent including following weight parts component：30-50 parts of methyl hexahydrophthalic anhydride, aluminium hydroxide 1-15
Part, 30-50 parts of silicon powder, 4-15 parts of halogen-free flame retardants；Each component is added in retort, is stirred at 70-120 DEG C of temperature
60-120 minutes, then degassing dehydration 8 hours or more under the conditions of vacuum 50-1000Pa, releasing mixture was the outdoor flame-retardant
Curing agent；
2) busbar is plugged completed in casting mold it is die-filling；Outdoor flame-retardant epoxy resin and outdoor flame-retardant are cured
Agent presses 1:The prefabricated busbar of moulding by casting in die-filling mold is injected after 1 proportioning mixed processing and completes to cure.
Preferably, the busbar includes the upper binding head (1201), intermediate connections (1102), lower company being connected
Connector (1301), the first lateral copper bar (1303) and the second lateral copper bar (1305).
Preferably, in the step 2), poured into a mould using epoxide resin automatic pressure gel technique or epoxide resin vacuum
The prefabricated busbar of technique moulding by casting.
Preferably, epoxide resin automatic pressure gel technique is that outdoor flame-retardant Formulaion of epoxy resin is separately added into temperature
For 25-40 DEG C of mixing tank, anchor formula agitating paddle or screw lifting umbrella hat type agitating paddle mixing 60- are used under the conditions of vacuum 50-500Pa
120 minutes, 40-120 revs/min of mixing speed, after the completion of processing in die-filling mold the prefabricated busbar of moulding by casting, mold
Temperature is 150-190 DEG C, and the mold forming and hardening time is 20-80 minutes；After die sinking, molded prefabricated busbar is put into baking oven
Or curing oven carries out secondary curing, at least cures at a temperature of 125-190 DEG C 8 hours.
Preferably, epoxide resin vacuum pouring technology is that outdoor flame-retardant Formulaion of epoxy resin is separately added into epoxy resin
The end of vacuum casting apparatus mixes tank, and mixed tank temperature is 50-70 DEG C eventually, and screw lifting umbrella hat type is used under the conditions of vacuum 50-500Pa
Agitating paddle mixing 60-120 minutes, 40-120 revs/min of mixing speed；Die-filling mold is put into temperature as 70-100 simultaneously
DEG C pouring can, handle 20-60 minutes under vacuum 50-500Pa；When the processing of outdoor flame-retardant Formulaion of epoxy resin and mold is completed
Afterwards, mixed tank and pouring can still maintain previous vacuum condition eventually, open cast valve and are poured into a mould, complete in 10-40 minutes
Into cast, continue to be kept for 5-15 minutes under vacuum, so that it may release vacuum, come out of the stove；After die sinking, molded prefabricated busbar is put
Enter baking oven or curing oven carries out secondary curing, at least cure at a temperature of 125-140 DEG C 8 hours.
Preferably, during cast, it pause cast can deaerate for 2-5 minutes after pouring into a mould 2-5 minutes, then be further continued for pouring into a mould.
The prefabricated busbar of integrated transformer platform manufactured using above-mentioned preparation method, including multiple busbars and packet
The insulating layer being molded over outside busbar is wrapped up in, which includes the upper connector (12) being connected as a single entity up and down, centre connects
Junctor (11) and lower connector (13), upper connector (12) are equipped with multiple upper binding heads (1201), are set on lower connector (13)
There are multiple lower union joints (1301), pass through busbar reality between corresponding upper binding head (1201) and lower union joint (1301)
Now it is conductively connected.
Preferably, the intermediate connecting body (11) is equipped on multiple bracing members parts that can be supported on transformer platform
Lug boss (1101), the lug boss (1101) be with insulating layer one moulding by casting or be fixedly mounted on the insulating layer.
Preferably, the lug boss (1101) is cylinder, elliptical cylinder-shape, semi-cylindrical, cuboid, annular, convex
Edge shape or skewback shape.
Preferably, the prefabricated busbar includes four busbars, each busbar includes the upper connection being connected
Head (1201), intermediate connections (1102) and lower union joint (1301), upper binding head (1201) and lower union joint (1301) are by leading
Goddess of lightning's line stretches out insulating layer and is formed, and is set on upper connector (12) there are four upper binding head (1201), is followed successively by from left to right in c phases
Connector (1201c), b phases upper binding head (1201b), a phases upper binding head (1201a) and o phases upper binding head (1201o), lower company
Lower union joint (1301) there are four being set on junctor (13), is followed successively by a phases lower union joint (1301a), b phase lower union joints from left to right
(1301b), c phases lower union joint (1301c) and o phases lower union joint (1301o)；Four centres in intermediate connecting body (11)
Connecting line (1102) is arranged laterally at a spacing, and intermediate connections (1102) among c phases intermediate connections (1102c), b phases including connecting
Line (1102b), a phases intermediate connections (1102a) and o phases intermediate connections (1102o) are equipped with first in lower connector (13)
Lateral copper bar (1303) and the second lateral copper bar (1305), c phases intermediate connections (1102c) pass through the second lateral copper bar (1305)
It is connect with c phases lower union joint (1301c), a phases intermediate connections (1102a) are by the first lateral copper bar (1303) with connecting under a phases
Connector (1301a) connects, and the first lateral copper bar (1303) and the second lateral copper bar (1305) are divided into lower union joint (1301)
Front and rear sides and spacing distance.
Preferably, upper binding head (1201) front-rear direction extends, the extension of lower union joint (1301) upper and lower directions.
Preferably, the busbar is copper bar.
Preferably, the copper bar width direction of upper binding head (1201) is left and right directions, the copper bar of lower union joint (1301)
Width direction is front-rear direction, and the copper bar width directions of intermediate connections (1102) is front-rear direction, the first lateral copper bar
(1303) and the copper bar width direction of the second lateral copper bar (1305) is upper and lower directions.Upper binding head (1201), intermediate connections
(1102), consolidated between lower union joint (1301), the first lateral copper bar (1303) and the second lateral copper bar (1305) by fastener
Determine and pass through welding blind.
For the present invention as a result of above technical solution, the prefabricated busbar mechanical property and electric property of preparation are superior,
Insulation effect is good, and load-bearing capacity is strong, and flame retardant property is good, simple and reasonable, easy for installation, at low cost.
Description of the drawings
Fig. 1 is the structure diagram of the prefabricated busbar of the present invention；
Fig. 2 is the side view of Fig. 1；
Fig. 3 is the bottom view of Fig. 1；
Fig. 4 is the vertical view of Fig. 1；
Fig. 5 is A-A sectional views；
Fig. 6 is the scheme of installation of the prefabricated busbar of the present invention；
Fig. 7 is enlarged drawing at the I of Fig. 6；
Fig. 8 is the side view of Fig. 6；
Fig. 9 is the schematic wiring diagram (front) of the prefabricated busbar of the present invention；
Figure 10 is the c phases schematic wiring diagram (side) of the prefabricated busbar of the present invention；
Figure 11 is the b phases schematic wiring diagram (side) of the prefabricated busbar of the present invention；
Figure 12 is a phases schematic wiring diagram (side) of the prefabricated busbar of the present invention；
Figure 13 is the structure diagram of the prefabricated busbar another embodiment of the present invention；
Figure 14 is the structure diagram of integrated transformer platform of the present invention.
Specific embodiment
The embodiment of the present invention is described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to for explaining the present invention, and is not considered as limiting the invention.
In the description of the present invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", " on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " clockwise ", " inverse
The orientation or position relationship of the instructions such as hour hands " are based on orientation shown in the drawings or position relationship, are for only for ease of description originally
It invents and simplifies description rather than indicate or imply that the device of meaning or element must have specific orientation, with specific square
Position construction and operation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are only used for description purpose, and it is not intended that instruction or hint relative importance
Or the implicit quantity for indicating indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include one or more this feature.In the description of the present invention, unless otherwise indicated, " multiple " are meant that two
It is a or more than two, unless otherwise restricted clearly.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected or be integrally connected；It can be machine
Tool is connected or is electrically connected；It can be directly connected, can also be indirectly connected by intermediary, can be two members
Connection inside part.For the ordinary skill in the art, above-mentioned term can be understood in this hair as the case may be
Concrete meaning in bright.
In the present invention unless specifically defined or limited otherwise, fisrt feature second feature it " on " or it " under "
It can be in direct contact including the first and second features, it is not to be in direct contact but pass through it that can also include the first and second features
Between other characterisation contact.Moreover, fisrt feature second feature " on ", " top " and " above " including first spy
Sign is right over second feature and oblique upper or is merely representative of fisrt feature level height higher than second feature.Fisrt feature exists
Second feature " under ", " lower section " and " following " immediately below second feature and obliquely downward or be merely representative of including fisrt feature
Fisrt feature level height is less than second feature.
In order to express easily, in the present invention with prefabricated busbar on integrated transformer platform when define a front and rear left side
Right upper and lower directions.
The prefabricated busbar of a kind of integrated transformer platform as shown in Figs. 1-5, including multiple busbars and package
The insulating layer being molded over outside busbar, the prefabricated busbar include the upper connector 12, the intermediate connecting body that are connected as a single entity up and down
11 and lower connector 13, upper connector 12 is equipped with multiple upper binding heads 1201, and lower connector 13 is equipped with multiple lower union joints
1301, it is conductively connected between corresponding upper binding head 1201 and lower union joint 1301 by busbar realization, the centre
Connector 11 can support the lug boss 1101 being located on the bracing members part of transformer platform equipped with multiple.
The lug boss 1101 can be fixedly mounted on intermediate connecting body 11, connected for example, lug boss is fixed on centre
On pin hole or bolt hole on junctor 11.But the present embodiment is preferred, the lug boss 1101 is integrally poured into insulator
Type does not need to secondary operation in this way, more solid and reliable yet.
1101 shape of lug boss can be diversified, including but not limited to cylinder, elliptical cylinder-shape, semicolumn
Shape, cuboid, annular, flange shape or skewback shape, as long as the lug boss 1101 has forms upper lower support with bracing members part 4
Contact point, contact line or contact surface.Preferably, The present invention gives two kinds of embodiments：The lug boss 1101
A kind of embodiment is skewback shape, as shown in Figure 1 and Figure 2；Another embodiment is cylinder, as shown in figure 13.As considered
To support the mounting means of prefabricated busbar with 1101 location fit of lug boss, pref. cylindrical is convex for trepanning or slot on bracing members part 4
The portion of rising, to facilitate trepanning/slot.
For the ease of the solid and reliable prefabricated busbar of support, the lug boss 1101 is usually opposite or front and rear in left and right
Opposite setting in pairs, can set two, can also set four, even more.
As shown in figs 6-8,13 bottom of lower connector is equipped with one for being plugged to the plug division 1302 at the top of distribution box,
Multiple lower union joints 1301 are arranged on 1302 lower section of plug division, which is formed with a circle seal groove
1304, seal groove 1304 is interior to be equipped with sealing ring 2.3 top of distribution box is provided with the trepanning of 13 grafting of lower connector for prefabricated busbar,
The hole wall of the trepanning is dug to form flange 31 upwards, the flange 31 be embedded in the seal groove of the lower connector 13 of prefabricated busbar and with
Sealing ring 2 offsets.
In the present embodiment, it is I-shaped that the prefabricated busbar presents that lower connector is big, intermediate connecting body is small, but the present invention
Prefabricated busbar is not limited to I-shaped, can also be other any shapes.
As shown in Figure 5, Figure 9, which includes four busbars, and each busbar includes being connected upper
Connector 1201, intermediate connections 1102 and lower union joint 1301, upper binding head 1201 and lower union joint 1301 are by busbar
It stretches out insulating layer to be formed, is set on upper connector 12 there are four upper binding head 1201, be followed successively by c phase upper binding heads from left to right
1201c, b phase upper binding head 1201b, a phase upper binding head 1201a and o phase upper binding head 1201o, lower connector 13 are equipped with four
A lower union joint 1301 is followed successively by a phase lower union joint 1301a, b phase lower union joint 1301b, c phase lower union joints from left to right
1301c and o phase lower union joints 1301o.All 1201 front-rear direction of upper binding head extensions, all 1301 upper and lower directionss of lower union joint
Extension.The busbar is copper bar.
As shown in Figure 5, Figure 9, four intermediate connections 1102 in intermediate connecting body 11 are arranged laterally at a spacing, and centre connects
Wiring 1102 is included among c phase intermediate connections 1102c, b phase intermediate connections 1102b, a phase intermediate connections 1102a and o phases
Connecting line 1102o is equipped with the first lateral lateral copper bar 1305 of copper bar 1303 and second, as shown in figure 12, c in lower connector 13
Phase intermediate connections 1102c is connect by the second lateral copper bar 1305 with c phase lower union joints 1301c, as shown in Figure 10, in a phases
Between connecting line 1102a connect by the first lateral copper bar 1303 with a phase lower union joints 1301a, as shown in Figure 11, Fig. 9, in b phases
Between connecting line 1102b be directly connected to b phase lower union joint 1301b, o phase intermediate connections 1102o and be directly connected to o phase lower union joints
1301o, the first lateral lateral copper bar 1305 of copper bar 1303 and second are divided into front and rear sides and the spacer of lower union joint 1301
From.The copper bar width direction of upper binding head 1201 is left and right directions, and the copper bar width direction of lower union joint 1301 is front-rear direction,
The copper bar width direction of intermediate connections 1102 is front-rear direction, the copper of the first lateral lateral copper bar 1305 of copper bar 1303 and second
Row's width direction is upper and lower directions.In this way, four busbars are in arranged for interval in upper connector and intermediate connecting body
It is lower straight-through there is no coordinated transposition, in lower connector a phases are realized by front and rear lateral copper bar setting and c intersect transposition, phase
Than in the prior art (CN107033318A), volume is more compact, and structure is more reasonable, and the insulation distance bigger between copper bar is exhausted
Edge effect is good.
The lateral copper of the lateral copper bar 1303 and second of upper binding head 1201, intermediate connections 1102, lower union joint 1301, first
It is fixed between row 1305 by fastener and passes through welding blind.The junction of two copper bars is difficult after being fixed by fastener
Exempt from there are gap, gap is crammed by welding, resin can be avoided, which to enter gap, influences the load-bearing capacity of busbar and electrical
Performance.
In the present embodiment as shown in figs. 10-12, the first lateral lateral copper bar of copper bar 1303 and second misplaces about 1305 sets
It puts, can not only facilitate installation in this way, but also with better insulation effect.
In the present invention, the insulating layer outside busbar is molded for outdoor flame-retardant poured with epoxy resin.
A kind of preparation method of the prefabricated busbar of integrated transformer platform, includes the following steps：
1) feedstock processing：
Outdoor flame-retardant epoxy resin including following weight parts component：30-50 parts of cycloaliphatic epoxy resin, aluminium hydroxide 1-
15 parts, 30-50 parts of silicon powder, 4-20 parts of halogen-free flame retardants；Each component is added in retort, is stirred at 50-120 DEG C of temperature
60-120 minutes, then degassing dehydration 8 hours or more under the conditions of vacuum 50-1000Pa, releasing mixture was the outdoor flame-retardant
Epoxy resin；
Outdoor flame-retardant curing agent including following weight parts component：30-50 parts of methyl hexahydrophthalic anhydride, aluminium hydroxide 1-15
Part, 30-50 parts of silicon powder, 4-15 parts of halogen-free flame retardants；Each component is added in retort, is stirred at 70-120 DEG C of temperature
60-120 minutes, then degassing dehydration 8 hours or more under the conditions of vacuum 50-1000Pa, releasing mixture was the outdoor flame-retardant
Curing agent；
2) it is upper binding head 1201, intermediate connections 1102, the lateral copper bar 1303 and second of lower union joint 1301, first is horizontal
Be fixedly connected to copper bar 1305 and plug completed in casting mold it is die-filling；Outdoor flame-retardant epoxy resin and outdoor flame-retardant are cured
Agent presses 1:The prefabricated busbar of moulding by casting in die-filling mold is injected after 1 proportioning mixed processing and completes to cure.
Epoxide resin automatic pressure gel technique (APG works may be used in the manufacture production of one-pass molding (prefabricated) busbar
Skill), epoxide resin vacuum pouring technology can also be used.
During using epoxide resin automatic pressure gel technique (APG techniques)：By above-mentioned outdoor flame-retardant epoxy resin and open air
Flame retardant curing agent is separately added into temperature as 25-40 DEG C of mixing tank, and anchor formula agitating paddle or spiral are used under the conditions of vacuum 50-500Pa
Promote umbrella hat type agitating paddle mixing 60-120 minutes, 40-120 revs/min of mixing speed, in die-filling mold after the completion of processing
The middle prefabricated busbar of moulding by casting, mold temperature are 150-190 DEG C, and the mold forming and hardening time is 20-80 minutes；It, will after die sinking
Molded prefabricated busbar is put into baking oven or curing oven carries out secondary curing, at least cures at a temperature of 125-190 DEG C 8 hours.
The unique distinction of asphalt mixtures modified by epoxy resin automatic pressure gelation process (APG) technology is, by continuously being mixed to epoxy resin
Material is subject to constant pressure, achievees the purpose that force supplement cure shrinkage.This process is completed in the mold of very high temperature
, so as to make the mixture of epoxy resins of high reaction activity rapid gellation in a short time.Therefore, product surface zero defect,
Internal stress is relatively low, and solidfied material is fine and close, consistency is good, and dimensional accuracy is high, and electromechanical properties are excellent, and product qualification rate is high.Due to gel
Change the time to complete generally within a few minutes to dozens of minutes (different according to mold size), be greatly improved mould utilization factor,
Shorten the production cycle.Since APG techniques are carried out in the system and device of an Integral sealing, and environmental pollution is small, are saved
The energy saves working hour.
During using epoxide resin vacuum pouring technology：Above-mentioned outdoor flame-retardant epoxy resin and outdoor flame-retardant curing agent are distinguished
The end for adding in epoxy Resin Vacuum Pouring Devices mixes tank, and mixed tank temperature is 50-70 DEG C eventually, and spiral shell is used under the conditions of vacuum 50-500Pa
Rotation promotes umbrella hat type agitating paddle mixing 60-120 minutes, 40-120 revs/min of mixing speed.Die-filling mold is put into simultaneously
Temperature is 70-100 DEG C of pouring can, is handled 20-60 minutes under vacuum 50-500Pa.When outdoor flame-retardant Formulaion of epoxy resin and mould
After the processing time of tool all reaches requirement, mixed tank and pouring can still maintain previous vacuum condition eventually, open cast valve, delay
Slow cast, and pause cast deaerates for 2-5 minutes after pouring into a mould 2-5 minutes, is then further continued for pouring into a mould.It is about complete in 10-40 minutes
Into cast, continue to be kept for 5-15 minutes under vacuum, so that it may release vacuum and come out of the stove；Molded prefabricated busbar is put into after die sinking
Baking oven or curing oven carry out secondary curing, at least cure at a temperature of 125-140 DEG C 8 hours.
The prefabricated busbar of the integrated transformer platform of the present invention, through experiment test：Tensile strength >=9MPa, extension at break
The ﹪ of rate >=300, elasticity modulus >=3MPa, Shore A hardness >=50, volume resistivity >=1016Ω cm, dielectric loss≤0.03,
Breakdown strength >=35kV/mm, flame retardant rating reach U.S. fire proofing standard ANS/UL94V0.
Carry out following tests to the prefabricated busbar of the present invention, test process and test result is as follows：
1st, industrial frequency withstand voltage is tested
(1) the test voltage value alternate, over the ground of prefabricated busbar：2.5kV/5s；
(2) during testing, no breakdown, flashover, electric discharge phenomena.
2nd, lightning impulse test
(1) surge voltage of the 1.2/50 μ s of each polarity application of prefabricated busbar 5 times, interval time is at least 1s.Experiment
Pulse voltage is：6kV (all-wave).
(2) during experiment, no breakdown, flashover, electric discharge phenomena.
3rd, temperature rise test
(1) temperature rise test of transformer, prefabricated busbar and comprehensive distribution box should be carried out at the same time.
(2) bus duct of prefabricated busbar, be no more than 60K at bus tie, with the temperature rise of conductor of busbar splicing position, absolutely
10K is not to be exceeded in edge material surface temperature rise.
4th, electric clearance and creepage distance experiment：
Electric clearance：15mm；Creepage distance：14mm.
5th, the corrosion resistance test of reliability test：
(1) process is tested
1. moisture and hot ageing is tested
Temperature is 40 DEG C ± 3 DEG C, and relative humidity 95%, test period is for 24 hours.
2. salt spray test
Temperature is 35 DEG C ± 2 DEG C, and test period is for 24 hours.
(2) result of the test
5min is rinsed with water after experiment, then droplet is removed with hair-dryer, 2h in normal conditions of use is stored, through examining：
1. without apparent iron mold, rupture.2. different insulative material intersection, conductor and insulating materials intersection are without apparent deformation, rupture.
3. industrial frequency withstand voltage pass the test after experiment.
6th, the change of temperature test of reliability test：
Low temperature：- 25 DEG C ± 3 DEG C, high temperature：40 DEG C ± 2 DEG C, the test period under low temperature and high temperature：2h, test cycle number
3 times.
It after experiment, is checked after standing 2h in normal atmospheric conditions it, through examining：1. without apparent slight crack, damage, rust
Erosion.2. industrial frequency withstand voltage pass the test after experiment.
A kind of integrated transformer platform as shown in figure 14, including the transformer 5 being mounted on above bracing members part and installation
Distribution box 3 below bracing members part is connected, preform carrier between transformer 5 and distribution box 3 by prefabricated busbar as described above
The upper connector 12 of line is connect with transformer 5, and the lower connector 13 of prefabricated busbar is connect with distribution box 3, and prefabricated busbar is in
Between lug boss 1101 on connector 11 be supported on bracing members part.In the present embodiment, bracing members part includes the first channel steel 41, the
Two channel steels 42 and third channel steel 43, the first channel steel 41 are fixedly connected with electric pole, and the second channel steel 42 and the first channel steel 41 are fixed and connected
It connects and thereon for fixing transformer 5, third channel steel 43 is fixed on the second channel steel 42；Preferably, prefabricated busbar setting
On two parallel third channel steels 43, the lug boss 1101 of prefabricated busbar is supported on 43 top of third channel steel.In other installations
In mode, hole or slot are provided on third channel steel 43, lug boss 1101 and the hole on third channel steel 43 or slot of prefabricated busbar coordinate
It realizes bearing, can not only realize weight support in this way, but also can realize that position is fixed, prefabricated busbar is avoided to shake.It is described
First channel steel 41, the second channel steel 42 and third channel steel 43 can also be the support element of angle steel, I-steel or other shapes.
As shown in figs 6-8,3 top of distribution box is provided with the trepanning of 13 grafting of lower connector for prefabricated busbar, the trepanning
Hole wall is dug to form flange 31 upwards, the flange 31 be embedded in the seal groove of the lower connector 13 of prefabricated busbar and with sealing ring 2
It offsets.
In the description of this specification, reference term " one embodiment ", " example ", " is specifically shown " some embodiments "
The description of example " or " some examples " etc. means specific features, structure, material or the spy for combining the embodiment or example description
Point is contained at least one embodiment of the present invention or example.In the present specification, schematic expression of the above terms are not
Centainly refer to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be any
One or more embodiments or example in combine in an appropriate manner.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is impossible to limitation of the present invention is interpreted as, those of ordinary skill in the art are not departing from the principle of the present invention and objective
In the case of can make changes, modifications, substitutions and variations to the above described embodiments within the scope of the invention.It is all the present invention
Within spirit and principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention.
Claims (10)
1. the integrated transformer platform preparation method of prefabricated busbar, which is characterized in that include the following steps：
1) feedstock processing：
Outdoor flame-retardant epoxy resin including following weight parts component：30-50 parts of cycloaliphatic epoxy resin, aluminium hydroxide 1-15
Part, 30-50 parts of silicon powder, 4-20 parts of halogen-free flame retardants；Each component is added in retort, is stirred at 50-120 DEG C of temperature
60-120 minutes, then degassing dehydration 8 hours or more under the conditions of vacuum 50-1000Pa, releasing mixture was the outdoor flame-retardant
Epoxy resin；
Outdoor flame-retardant curing agent including following weight parts component：30-50 parts of methyl hexahydrophthalic anhydride, 1-15 parts of aluminium hydroxide, silicon
30-50 parts of micro mist, 4-15 parts of halogen-free flame retardants；Each component is added in retort, and 60-120 is stirred at 70-120 DEG C of temperature
Minute, then degassing dehydration 8 hours or more under the conditions of vacuum 50-1000Pa, releasing mixture is the outdoor flame-retardant curing agent；
2) busbar is plugged completed in casting mold it is die-filling；Outdoor flame-retardant epoxy resin and outdoor flame-retardant curing agent are pressed
1:The prefabricated busbar of moulding by casting in die-filling mold is injected after 1 proportioning mixed processing and completes to cure.
2. the preparation method of the prefabricated busbar of integrated transformer platform according to claim 1, which is characterized in that described to lead
Goddess of lightning's line includes the upper binding head (1201) being connected, intermediate connections (1102), lower union joint (1301), the first lateral copper bar
(1303) and the second lateral copper bar (1305).
3. the preparation method of the prefabricated busbar of integrated transformer platform according to claim 1, which is characterized in that the step
It is rapid 2) in, using epoxide resin automatic pressure gel technique or the prefabricated busbar of epoxide resin vacuum pouring technology moulding by casting.
4. the preparation method of the prefabricated busbar of integrated transformer platform according to claim 3, which is characterized in that asphalt mixtures modified by epoxy resin
Fat automatic pressure gelation process is that outdoor flame-retardant Formulaion of epoxy resin is separately added into temperature for 25-40 DEG C of mixing tank, in vacuum
With anchor formula agitating paddle or screw lifting umbrella hat type agitating paddle mixing 60-120 minutes, mixing speed 40-120 under the conditions of 50-500Pa
Rev/min, after the completion of processing in die-filling mold the prefabricated busbar of moulding by casting, mold temperature be 150-190 DEG C, mold into
Type hardening time is 20-80 minutes；After die sinking, molded prefabricated busbar is put into baking oven or curing oven carries out secondary curing,
At least cure at a temperature of 125-190 DEG C 8 hours.
5. the preparation method of the prefabricated busbar of integrated transformer platform according to claim 3, which is characterized in that asphalt mixtures modified by epoxy resin
Fat vacuum casting process is that outdoor flame-retardant Formulaion of epoxy resin is separately added into ends of epoxy Resin Vacuum Pouring Devices to mix tank, eventually
Mixed tank temperature is 50-70 DEG C, with screw lifting umbrella hat type agitating paddle mixing 60-120 minutes under the conditions of vacuum 50-500Pa, is stirred
Mix 40-120 revs/min of speed；Die-filling mold is put into the pouring can that temperature is 70-100 DEG C, vacuum 50-500Pa simultaneously
Lower processing 20-60 minutes；After the completion of the processing of outdoor flame-retardant Formulaion of epoxy resin and mold, mixed tank and pouring can are still protected eventually
Previous vacuum condition is held, cast valve is opened and is poured into a mould, cast was completed in 10-40 minutes, continues to keep under vacuum
5-15 minutes, so that it may release vacuum, come out of the stove；After die sinking, molded prefabricated busbar is put into baking oven or curing oven progress is secondary
Curing, at least cures 8 hours at a temperature of 125-140 DEG C.
6. the preparation method of the prefabricated busbar of integrated transformer platform according to claim 5, which is characterized in that cast
When, it pause cast can deaerate for 2-5 minutes after pouring into a mould 2-5 minutes, then be further continued for pouring into a mould.
7. using the prefabricated busbar of integrated transformer platform of preparation method according to any one of claims 1 to 6 manufacture,
It is characterized in that, is molded over the insulating layer outside busbar including multiple busbars and package, which includes upper
Under the upper connector (12), intermediate connecting body (11) and the lower connector (13) that are connected as a single entity, upper connector (12) is equipped with multiple
Upper binding head (1201), lower connector (13) be equipped with multiple lower union joints (1301), corresponding upper binding head (1201) and
It is conductively connected between lower union joint (1301) by busbar realization.
8. the prefabricated busbar of integrated transformer platform according to claim 7, which is characterized in that the intermediate connecting body
(11) lug boss (1101) being located on the bracing members part of transformer platform, the lug boss can be supported equipped with multiple
(1101) be with insulating layer one moulding by casting or be fixedly mounted on the insulating layer.
A kind of 9. prefabricated busbar of integrated transformer platform according to claim 8, which is characterized in that the lug boss
(1101) cylinder, elliptical cylinder-shape, semi-cylindrical, cuboid, annular, flange shape or skewback shape.
A kind of 10. prefabricated busbar of integrated transformer platform according to claim 7, which is characterized in that the prefabricated busbar
Including four busbars, each busbar include be connected upper binding head (1201), intermediate connections (1102) and
Lower union joint (1301), upper binding head (1201) and lower union joint (1301) stretch out insulating layer by busbar and are formed, upper connection
Upper binding head (1201) there are four being set on body (12), is followed successively by c phases upper binding head (1201c), b phase upper binding heads from left to right
(1201b), a phases upper binding head (1201a) and o phases upper binding head (1201o), set that there are four lower union joints on lower connector (13)
(1301), it is followed successively by a phases lower union joint (1301a), b phases lower union joint (1301b), c phases lower union joint (1301c) from left to right
With o phases lower union joint (1301o)；Four intermediate connections (1102) in intermediate connecting body (11) are arranged laterally at a spacing, in
Between connecting line (1102) include c phases intermediate connections (1102c), b phases intermediate connections (1102b), a phase intermediate connections
(1102a) and o phases intermediate connections (1102o) are equipped with the first lateral copper bar (1303) and the second horizontal stroke in lower connector (13)
To copper bar (1305), c phases intermediate connections (1102c) are connected by the second lateral copper bar (1305) with c phases lower union joint (1301c)
It connects, a phases intermediate connections (1102a) are connect by the first lateral copper bar (1303) with a phases lower union joint (1301a), and first is horizontal
Front and rear sides and the spacing distance of lower union joint (1301) are divided into copper bar (1303) and the second lateral copper bar (1305)；Upper company
The copper bar width direction of connector (1201) is left and right directions, and the copper bar width direction of lower union joint (1301) is front-rear direction, in
Between connecting line (1102) copper bar width direction for front-rear direction, the first lateral copper bar (1303) and the second transverse direction copper bar (1305)
Copper bar width direction be upper and lower directions；Upper binding head (1201), intermediate connections (1102), lower union joint (1301), first
It is fixed between lateral copper bar (1303) and the second lateral copper bar (1305) by fastener and passes through welding blind.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810054150.9A CN108250410B (en) | 2018-01-19 | 2018-01-19 | Prefabricated bus for integrated transformer platform and preparation method thereof |
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| CN201810054150.9A CN108250410B (en) | 2018-01-19 | 2018-01-19 | Prefabricated bus for integrated transformer platform and preparation method thereof |
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| CN108281864A (en) * | 2018-01-19 | 2018-07-13 | 台州永创电气有限公司 | Integrated transformer platform and its prefabricated busbar |
| CN110957844A (en) * | 2018-09-27 | 2020-04-03 | 现代摩比斯株式会社 | Block terminal for electric machine and method of manufacturing the same |
| GB2604251A (en) * | 2019-10-12 | 2022-08-31 | Nanjing Finepeptide Biopharmaceutical Co Ltd | Use of modified GLP-1 analogue dimers of different configurations and preparation method therefor in treating type 2 diabetes |
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| CN108250410B (en) | 2020-07-31 |
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