CN206471224U - A kind of transformer casting mold - Google Patents
A kind of transformer casting mold Download PDFInfo
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- CN206471224U CN206471224U CN201720075943.XU CN201720075943U CN206471224U CN 206471224 U CN206471224 U CN 206471224U CN 201720075943 U CN201720075943 U CN 201720075943U CN 206471224 U CN206471224 U CN 206471224U
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- material feeding
- interface
- cup
- casting mold
- transformer casting
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Abstract
The utility model discloses a kind of transformer casting mold, including mould housing, material feeding seat and material feeding cup, material feeding seat is fixed on mould housing, material feeding seat axially opens up the material feeding through hole being passed through in mould housing, material feeding seat upper end forms material cup interface, the material feeding interface that the lower end of material feeding cup has and material cup interface is docked, material cup interface and material feeding interface are by clip banding, and the outer end of material cup interface and material feeding interface interface is sealed by clip.The utility model has interchangeability good, good airproof performance, small volume, saves epoxy resin, the characteristics of environmentally friendly, while can also shorten the contraction hardening time of epoxy resin, improves solidification quality.
Description
Technical field
The utility model is related to the production and processing technical field of transformer, more particularly to a kind of transformer casting mold.
Background technology
Transformer passes through epoxy encapsulation formation pour mass, its middle ring after the complete secondary winding of coiling and first winding
The cast of oxygen tree fat is carried out by casting mold, and detailed process is that will be put into mould around the secondary winding and first winding that make
It is interior, the epoxy resin of liquid then is injected from the pouring slot of mould, more than 20 hour of solidification in curing oven is then placed in, formation is poured
Injection body.
Casting mold conventional at present as Figure 1-3, including mould housing 10 and pours flitch 20, and mould housing 10 is opened up
The material hole 101 passed through for epoxy resin, pours flitch 20 and opens up the corresponding topping hole 201 with material hole 101, for the ease of falling
Material, topping hole 201 is both needed to be more than material hole 101.Pour installation of the flitch 20 on mould housing 10 then by bolt 30 to lock, mould
The two sides of tool housing 10 form outwardly directed otic placode 102, and the two ends and two otic placodes 102 for pouring flitch 20 are respectively formed short slot 40,
Bolt 30 passes through nut after then passing through corresponding short slot 40（Not shown in figure）Flitch 20 will be poured and otic placode 102 is fixed.
Said structure has as a drawback that：
1st, the need for according to different transformers, the size of mould housing 10 is not quite similar, and causes that required to pour flitch 20 big
Small also to need to be not quite similar, one is poured flitch 20 and can only correspond to a mould housing 10 and uses, and the size for pouring flitch 20 is limited completely
In the size of mould housing 10, interchangeability is excessively poor, is lost once pouring flitch 20, will cause corresponding mould housing 10 can not
Use.
2nd, because fixed position is positioned at the two ends for pouring flitch 20, flitch 20 is poured in addition and is generally iron material matter, there is thermal deformation,
Cause the presence of gap between topping hole 201 and mould housing 10, air-proof condition is poor.Even in topping hole 201 and mould housing
Pre- pad sealing strip between 10, after use, due to the adhesion of epoxy resin often leads to sealing strip can only be disposable, cost
It is high.
3rd, the use for pouring flitch 20 need to be by manpower transport, it is contemplated that the problem of weight, and the thickness for pouring flitch 20 is impossible
It is too thick, therefore the depth in topping hole 201 is generally shallower, while the opening in topping hole 201 can not be excessive, if aperture area
It is excessive（As shown in Figure 3）, then radiating is very fast, is unfavorable for solidification, therefore the epoxy resin volume of the existing memory storage of topping hole 201
It is general less.And epoxy resin volume during solidification can reduce, mould is pulled out weight by need to start in solidification 1.5 hours
New addition epoxy resin, then mould need to be pulled out and determine the need for adding epoxy resin again, constantly draw again after 2 hours
Go out and leverage solidification, not only increase hardening time cumbersome, and solidification quality also can be impacted.
4th, it is not of uniform size due to transformer and mould housing 10, pour some small volumes of topping hole 201 on flitch 20
（As shown in Figure 2 201）, this structure pours flitch 20 in vacuum pouring, because the capacity of topping hole 201 is few, can produce flash
The problem of, cause a large amount of wastes of epoxy resin.
In consideration of it, the present inventor develops a kind of transformer casting mold for this, above mentioned problem, this case are effectively solved
Thus produce.
Utility model content
A kind of transformer casting mold that the utility model is provided, good airproof performance good with interchangeability, small volume is saved
Epoxy resin, the characteristics of environmentally friendly, while can also shorten the contraction hardening time of epoxy resin, improves solidification quality.
To achieve these goals, the technical solution of the utility model is as follows：
A kind of transformer casting mold, including mould housing, material feeding seat and material feeding cup, material feeding seat are fixed on mould housing
On, material feeding seat axially opens up the material feeding through hole being passed through in mould housing, and material feeding seat upper end forms material cup interface, the lower end of material feeding cup
With the material feeding interface docked with material cup interface, material cup interface and material feeding interface are by clip banding, and material cup interface and material feeding connect
The outer end of mouth interface is sealed by clip.
The material feeding cup is in up big and down small funnel-form.
The material feeding cup has cup lid.
The mould housing presets mounting hole, and material feeding seat is directly inserted in mounting hole and is welded and fixed.
The interface of the material cup interface and material feeding interface is in the labyrinth seal structure bent.
The labyrinth seal structure is that interface extends internally from the first level in outside, then is extended obliquely, final level
Extend internally.
The lower end of the material feeding cup and the upper end of material feeding seat form radial flange outwardly, the radial flange conduct respectively
Material cup interface and material feeding interface.
The banding face of the clip is trapezoidal for indent, and face is tightened after corresponding material cup interface and material feeding interface docking
For the trapezoidal of evagination.
The clip includes left hoop in, right hoop, locking bar and nut, left hoop while and one end during right hoop be pivotally mounted, separately
One end opens up open slot, and one end of locking bar is articulated in one of open slot, and the other end of locking bar opens up screw thread and by spiral shell
Mother lock onto another open slot, left hoop while and medial surface during right hoop open up described banding face.
After such scheme, the utility model in use, due to using material feeding seat and the structure that uses cooperatively of material feeding cup,
Both complete to fix by clip banding, install fixation and are not limited by mould housing size, therefore material cup interface and material feeding connect
Mouth can be fabricated to standard component, and interchangeability is very good.
Due to directly passing through clip banding in material cup interface and material feeding interface so that material cup interface and material feeding interface are always
Outer end in close contact, and material cup interface and material feeding interface interface is sealed by clip, therefore good seal performance.
Because the lower end of material feeding cup is directly installed using clip banding mode, therefore material feeding cup is used to accommodate epoxy resin
The wall of cup on top can use less thickness without very big active force is subjected to, and make material feeding cup overall weight very light, can be significantly
Increase the capacity of material feeding cup, after the capacity increase of material feeding cup, solve first the problem of flash during pouring into epoxy resin,
The usage amount that epoxy resin can be reduced is more environmentally-friendly, secondly make it that volume contracts when the epoxy resin in material feeding cup is enough to provide solidification
Subtract required epoxy resin, without adding epoxy resin in solidification, solidification quality is improved, without repeatedly pulling out solidification process
In mould, reduce hardening time.
Brief description of the drawings
Fig. 1 is the structural representation one of existing transformer casting mold；
Fig. 2 is the structural representation two of existing transformer casting mold；
Fig. 3 is the structural representation three of existing transformer casting mold；
Fig. 4 is the part-structure schematic diagram of the present embodiment（Only show the upper lid of mould housing）；
Fig. 5 is the structural representation of the present embodiment clip.
Label declaration
Mould housing 10, material hole 101, otic placode 102 pours flitch 20, topping hole 201, bolt 30, short slot 40；
Mould housing 1, mounting hole 11, material feeding seat 2, material feeding through hole 21, material cup interface 22, material feeding cup 3, material feeding interface 31,
Cup lid 32, clip 4, left hoop side 41, right hoop side 42, locking bar 43, nut 44, open slot 45 is tightened face 5, banding face 6, labyrinth
Type sealing structure 7.
Embodiment
In order to which the technical solution of the utility model is explained further, the utility model is entered below by specific embodiment
Row is elaborated.
As shown in figure 4, be the utility model disclose a kind of transformer casting mold, including mould housing 1, material feeding seat 2
With material feeding cup 3.Mould housing 1 presets mounting hole 11, and material feeding seat 2 is directly inserted in mounting hole 11 and is welded and fixed.Material feeding seat 2
The material feeding through hole 21 being passed through in mould housing 1 is axially opened up, 2 upper ends of material feeding seat form material cup interface 22.The lower end tool of material feeding cup 3
There are material feeding interface 31, material feeding interface 31 and material cup interface 22 to pass through the banding of clip 4, material cup interface 22 and material feeding interface 31 after docking
The outer end of interface is sealed by clip 4.In use, epoxy resin can flow into mould after pouring into material feeding cup 3 at material feeding through hole 21
Have in housing 11.
Material feeding cup 3 is in up big and down small funnel-form, so that epoxy resin enters material feeding through hole 21, it is ensured that epoxy resin is not
It can partially be spilt due to note and cause to waste.Material feeding cup 3 also has cup lid 32, when whole mould is pushed into curing oven, covers cup
Lid 32, is conducive to the insulation of mould inside, shortens the hardening time of epoxy resin.
Wherein the lower end of material feeding cup 3 and the upper end of material feeding seat 2 form radial flange outwardly respectively, and radial flange is used as material
The face 5 that is tightened after cup interface 22 and material feeding interface 31, material cup interface 22 and material feeding interface 31 are docked is the trapezoidal of evagination.As schemed
Shown in 5, clip 4 includes left hoop 42, locking bar 43 and nut 44 in 41, right hoop, and left hoop 42 one end at 41 and right hoop is pivotally connected
Install, the other end opens up open slot 45, and one end of locking bar 43 is articulated in one of open slot 45, and the other end of locking bar 43 is opened
If screw thread simultaneously lock onto another open slot 45 by nut 44, when need to unclamp clip 4, nut 44 is pulled down.Left hoop side 41
Medial surface with right hoop side 42 is as banding face 6, and banding face 6 is trapezoidal in indent, and material cup interface 22 and material feeding interface 31 are bound round
When tight, the tight of banding face 6 lives to be tightened face 5.
The mode of the banding of clip 4 inherently has certain sealing property, and the present embodiment is for further lift-off seal
Can, the interface of material cup interface 22 and material feeding interface 31 uses the labyrinth seal structure 7 in bending to design.As shown in figure 4, tool
The labyrinth seal structure 7 of body is that interface extends internally from the first level in outside, then is extended obliquely, and final level inwardly prolongs
Stretch, the structure with the epoxy resin prevented in material feeding cup 3 at interface in addition to spilling.Under the premise of meeting sealedly, this reality
A labyrinth seal structure 7 is applied only with bending twice, the docking of material cup interface 22 and material feeding interface 31 is not interfered with not only, and
And positioning can also be played a part of to both docking.
The present embodiment is in addition to good seal performance, due to using material feeding seat 2 and the structure that uses cooperatively of material feeding cup 3, and two
Person is completed to fix by the banding of clip 4, and size is not limited by the size of mould housing 11, therefore material cup interface 22 and material feeding interface
31 can be fabricated to standard component, and interchangeability is very good.
Furthermore because the lower end of material feeding cup 3 is directly installed using banding mode, material feeding cup 3 is used to accommodate epoxy resin
Portion's wall of cup can use less thickness without being subjected to very big active force, thus material feeding cup 3 at high volume its overall weight according to
It is so very light, without reducing capacity due to weight issue, because capacity is bigger, therefore solve during epoxy resin is poured into
The problem of flash, the usage amount that can reduce epoxy resin is more environmentally-friendly.In design, it is ensured that the capacity of material feeding cup 3 can be more than
Volume-diminished amount in most mould housings 11 during epoxy resin cure.Therefore the present embodiment is typically without in solidification
Shi Tianjia epoxy resin, improves solidification quality, at most when some volumes of mould housing 11 are larger pull out determine whether
Addition is needed, and without that need to be pulled out as prior art out of curing oven twice, the present embodiment increases provided with cup lid 32 in addition
Plus heat-insulating property, therefore the hardening time general comparable prior art of the present embodiment shortens or so two hours.
Preferred embodiment of the present utility model is these are only, not to the restriction of protection domain of the present utility model.It is all according to
The equivalent variations that the mentality of designing of this case is done, each fall within the protection domain of this case.
Claims (9)
1. a kind of transformer casting mold, it is characterised in that：Including mould housing, material feeding seat and material feeding cup, material feeding seat is fixed on
On mould housing, material feeding seat axially opens up the material feeding through hole being passed through in mould housing, and material feeding seat upper end forms material cup interface, material feeding
The material feeding interface that the lower end of cup has and material cup interface is docked, material cup interface and material feeding interface pass through clip banding, material cup interface
Sealed with the outer end of material feeding interface interface by clip.
2. a kind of transformer casting mold as claimed in claim 1, it is characterised in that：The material feeding cup is in up big and down small leakage
It is bucket-shaped.
3. a kind of transformer casting mold as claimed in claim 1, it is characterised in that：The material feeding cup has cup lid.
4. a kind of transformer casting mold as claimed in claim 1, it is characterised in that：The mould housing presets mounting hole,
Material feeding seat is directly inserted in mounting hole and is welded and fixed.
5. a kind of transformer casting mold as claimed in claim 1, it is characterised in that：The material cup interface and material feeding interface
Interface is in the labyrinth seal structure bent.
6. a kind of transformer casting mold as claimed in claim 5, it is characterised in that：The labyrinth seal structure is docking
Face extends internally from the first level in outside, then extends obliquely, and final level extends internally.
7. a kind of transformer casting mold as claimed in claim 1, it is characterised in that：The lower end of the material feeding cup and material feeding seat
Upper end form radial flange outwardly respectively, the radial flange is respectively as material cup interface and material feeding interface.
8. a kind of transformer casting mold as claimed in claim 1, it is characterised in that：The banding face of the clip is indent
Trapezoidal, the face that is tightened after corresponding material cup interface and material feeding interface docking is the trapezoidal of evagination.
9. a kind of transformer casting mold as claimed in claim 8, it is characterised in that：The clip includes left hoop side, right hoop
Side, locking bar and nut, left hoop while and one end during right hoop be pivotally mounted, the other end opens up open slot, and one end of locking bar is articulated in
In one of open slot, the other end of locking bar opens up screw thread and by nut check in another open slot, left hoop side and the right side
The medial surface on hoop side opens up described banding face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720075943.XU CN206471224U (en) | 2017-01-19 | 2017-01-19 | A kind of transformer casting mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720075943.XU CN206471224U (en) | 2017-01-19 | 2017-01-19 | A kind of transformer casting mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206471224U true CN206471224U (en) | 2017-09-05 |
Family
ID=59702919
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720075943.XU Active CN206471224U (en) | 2017-01-19 | 2017-01-19 | A kind of transformer casting mold |
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| Country | Link |
|---|---|
| CN (1) | CN206471224U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106601458A (en) * | 2017-01-19 | 2017-04-26 | 厦门大互科技有限公司 | Mutual inductor pouring die |
-
2017
- 2017-01-19 CN CN201720075943.XU patent/CN206471224U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106601458A (en) * | 2017-01-19 | 2017-04-26 | 厦门大互科技有限公司 | Mutual inductor pouring die |
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