CN204398220U - The mould of outdoor mutual inductor - Google Patents
The mould of outdoor mutual inductor Download PDFInfo
- Publication number
- CN204398220U CN204398220U CN201420728420.7U CN201420728420U CN204398220U CN 204398220 U CN204398220 U CN 204398220U CN 201420728420 U CN201420728420 U CN 201420728420U CN 204398220 U CN204398220 U CN 204398220U
- Authority
- CN
- China
- Prior art keywords
- mutual inductor
- core rod
- mold cavity
- counterdie
- patrix
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
Links
- 210000003141 lower extremity Anatomy 0.000 claims abstract description 6
- 238000004804 winding Methods 0.000 claims abstract description 4
- 238000007789 sealing Methods 0.000 abstract description 15
- 238000009413 insulation Methods 0.000 abstract description 6
- 238000005265 energy consumption Methods 0.000 abstract description 5
- 230000002950 deficient Effects 0.000 abstract description 4
- 238000013461 design Methods 0.000 description 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 239000011347 resin Substances 0.000 description 5
- 229920005989 resin Polymers 0.000 description 5
- 239000000741 silica gel Substances 0.000 description 5
- 229910002027 silica gel Inorganic materials 0.000 description 5
- 230000015556 catabolic process Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Landscapes
- Insulating Of Coils (AREA)
Abstract
The utility model discloses a kind of mould of outdoor mutual inductor, described mould comprises the upper die and lower die for surrounding mold cavity, patrix offers the plug hole and steam vent that are communicated with mold cavity, core rod is provided with in mold cavity, the two ends up and down of described core rod are connected with upper die and lower die respectively, the two ends up and down of described core rod are connected in the upper groove of patrix and the low groove of counterdie respectively, and the part that described core rod is positioned at mold cavity is cylindrical; Described mold cavity inner ring winding mold core is provided with one group for supporting the anchor post of mutual inductor coil, and anchor post is fixedly connected with counterdie, and the upper end of anchor post is provided with the stairstepping chuck for clamping mutual inductor coil outward flange and lower limb.The utility model advantage is the resin-cast sealing efficiency that can improve outdoor mutual inductor, reduces specific energy consumption and the percent defective of outdoor mutual inductor, improves its insulation degree.
Description
Technical field
The utility model belongs to the manufacturing technology field of outdoor mutual inductor, particularly relates to a kind of mould of outdoor mutual inductor.
Background technology
10 kilovolts of pouring current transformers are widely used in the power equipments such as switch cubicle, current outdoor 10 KV mutual-inductors normally divide 2 times or repeatedly resin-cast sealing, just can complete outdoor 10 KV mutual-inductors: cast or the injection grinding tool of input are many after carrying out silica gel packaging more such for 2 times or repeatedly pour into a mould sealing mode and cause result to be; Workload and working strength large; Finished product specific energy consumption is high; Finished product manufacturer is many for man-hour; 2 times or the binding site repeatedly poured into a mould easily occur that air pocket causes Excess Partial Discharge; 2 times or the binding site repeatedly poured into a mould combine and loosely occur that gap causes binding site to ftracture and causes insulation degree to decline, and often cause the breakdown phenomenon of transformer, make the secondary device be connected with transformer damage and threaten to personal safety.This just needs the problem of repeatedly pouring into a mould sealing generation for former outdoor 10 KV mutual-inductors, in its production process, the resin-cast sealing method of transformer is improved, to enhance productivity, reduce specific energy consumption and the percent defective of product, improve its insulation degree, prevent outdoor mutual inductor from threatening to personal safety because high voltage is breakdown.
Utility model content
The utility model is in order to solve the problems of the prior art, there is provided a kind of outdoor mutual inductor mould, the resin-cast sealing efficiency of outdoor mutual inductor can be improved, reduce specific energy consumption and the percent defective of outdoor mutual inductor, improve its insulation degree, prevent outdoor mutual inductor from threatening to personal safety because high voltage is breakdown.
For solving the problems of the technologies described above, the utility model adopts following technical scheme: the mould of outdoor mutual inductor, it comprises the upper die and lower die for surrounding mold cavity, described patrix offers the plug hole and steam vent that are communicated with described mold cavity, core rod is provided with in described mold cavity, the two ends up and down of described core rod are connected with upper die and lower die respectively, described patrix offers the upper groove matched with core rod upper end, described counterdie offers the low groove matched with core rod lower end, the two ends up and down of described core rod are connected in upper groove and low groove respectively, the part that described core rod is positioned at mold cavity is cylindrical, described mold cavity inner ring winding mold core is provided with one group for supporting the anchor post of mutual inductor coil, and anchor post is fixedly connected with described counterdie, and the upper end of anchor post is provided with the stairstepping chuck for clamping mutual inductor coil outward flange and lower limb
.
The position that described upper die and lower die connect offers the wire hole for placing mutual inductor coil outlet.
One group of described anchor post is made up of 3 anchor posts, and 3 anchor posts are positioned on same circle, and the central angle between adjacent anchor post is set to 120 °.
The side of described upper die and lower die is fixedly installed upper mounted plate and bottom plate respectively, and fixed plate and bottom plate are corresponding up and down and be fixedly connected with by fastening bolt.
The position that described counterdie contacts with described patrix is provided with counterdie projection, and the position that described patrix contacts with described counterdie offers the patrix groove matched with described counterdie projection, and described counterdie projection is connected in described patrix groove.
The beneficial effects of the utility model:
The cooperation of core rod and anchor post in mould of the present utility model, enables this operation of resin-cast sealing of outdoor mutual inductor complete in once-cast process; The two ends up and down of described core rod are connected with upper die and lower die respectively, described patrix offers the upper groove matched with core rod upper end, described counterdie offers the low groove matched with core rod lower end, the two ends up and down of described core rod are connected in upper groove and low groove respectively, the part that described core rod is positioned at mold cavity is cylindrical, this structural design is convenient to the processing of upper die and lower die and core rod, cuts down finished cost, cost-saving; The position that counterdie contacts with described patrix is provided with counterdie projection, the position that described patrix contacts with described counterdie offers the patrix groove matched with described counterdie projection, described counterdie projection is connected in described patrix groove, this structural design makes to produce radial fixing between upper die and lower die, prevents from producing radial deflection between upper die and lower die; The side of upper die and lower die is fixedly installed upper mounted plate and bottom plate respectively, fixed plate and bottom plate are corresponding up and down and be fixedly connected with by fastening bolt, this structural design makes to produce axial restraint between upper die and lower die, prevents from producing axial dipole field between upper die and lower die; One group of anchor post is made up of 3 anchor posts, 3 anchor posts are positioned on same circle, 120 ° of central angles are set between adjacent anchor post, anchor post upper end is provided with the stairstepping chuck for clamping mutual inductor coil outward flange and lower limb, in the draw-in groove that the stairstepping chuck that this structural design enables mutual inductor coil be connected to 3 anchor posts is formed, make the central axis of mutual inductor coil and the central axes of core rod, avoid mutual inductor coil to produce skew.
The utility model is by being modified into mould, this operation of resin-cast sealing of manufacture outdoor mutual inductor is once completed, prove that cast sealing method of the present utility model decreases mould over half and drops into by test, improve production efficiency, reduce the specific energy consumption of product, greatly reduce percent defective, and improve insulation degree, prevent outdoor mutual inductor from threatening to personal safety because high voltage is breakdown.
Accompanying drawing explanation
Fig. 1 is the structural front view of mould in the utility model;
Fig. 2 is the structure top view of mould in the utility model;
Fig. 3 is A-A generalized section in Fig. 2;
Fig. 4 is the structural representation of anchor post in the utility model.
Detailed description of the invention
Below in conjunction with Fig. 1 to Fig. 4, structure of the present utility model and the course of work are further described.
The mould of outdoor mutual inductor of the present utility model, it comprises patrix 1 for surrounding mold cavity 15 and counterdie 2, the position that patrix 1 is connected with counterdie 2 offers the wire hole 5 of the outlet 6 for placing mutual inductor coil 3, described patrix 1 offers the plug hole 11 be communicated with described mold cavity and steam vent 12, core rod 4 is provided with in described mold cavity 15, the two ends up and down of described core rod 1 are connected with patrix 1 and counterdie 2 respectively, described patrix 1 offers the upper groove 16 matched with core rod upper end 4-1, described counterdie 2 offers the low groove 17 matched with core rod lower end 4-3, the part 4-2 that described core rod 4 is positioned at mold cavity 15 is cylindrical, this structural design to be convenient to after die sinking between transformer and core rod 4, between core rod 4 and patrix 1, being separated between core rod 4 with counterdie 2.
Described mold cavity 15 inner ring winding mold core 4 is provided with one group for supporting the anchor post 7 of mutual inductor coil 3, anchor post 7 is fixedly connected with counterdie 2, one group of anchor post 7 is made up of 3 anchor posts 7, 3 anchor posts 7 are positioned on same circle, central angle alpha between adjacent anchor post 7 is set to 120 °, anchor post 7 upper end is provided with the stairstepping chuck 7-1 for clamping mutual inductor coil lower limb, in the draw-in groove that the stairstepping chuck 7-1 that this structural design makes mutual inductor coil 3 can be connected to 3 anchor posts 7 is formed, make the central axis of mutual inductor coil 3 and the central axes of core rod 4, mutual inductor coil 3 is avoided to produce axial dipole field.
The position that described counterdie 2 contacts with described patrix 1 is provided with counterdie projection 13, the position that described patrix 1 contacts with described counterdie 2 offers the patrix groove 14 matched with described counterdie projection 13, described counterdie projection 13 is connected in described patrix groove 14, this structural design makes to produce radial fixing between patrix 1 and counterdie 2, prevents from producing radial deflection between patrix 1 and counterdie 2; The side of described patrix 1 and counterdie 2 is fixedly installed upper mounted plate 9 and bottom plate 10 respectively, fixed plate 9 and bottom plate about 10 are corresponding and be fixedly connected with by fastening bolt 8, this structural design makes to produce axial restraint between patrix 1 and counterdie 2, prevents from producing axial dipole field between patrix 1 and counterdie 2.
The present embodiment also discloses the cast sealing method using above-mentioned mould to carry out outdoor mutual inductor, and the method comprises the following steps:
1) unclamp fastening bolt 8, take off patrix 1;
2) first patrix 1 and counterdie 2 is cleaned, and at patrix 1, counterdie 2, core rod 4 and 3 anchor posts 7 brushing releasing agent on the surface, and then mutual inductor coil 3 is placed on the upper end surface of 3 anchor posts 7, make mutual inductor coil 3 outward flange and lower limb and stairstepping chuck 7-1 clamping, the outlet 6 of mutual inductor coil 3 is placed in wire hole 5 simultaneously;
3) close patrix 1, makes counterdie projection 13 be connected in patrix groove 14, then upper mounted plate 9 and bottom plate 10 is fastened as a whole by fastening patrix 1 and the counterdie 2 of making of fastening bolt 8:
4) mould that step 3 obtains is placed on the mould erecting bed that resin extrudes injector automatically, and 2 hours are incubated under 110 degrees Celsius, then resin is automatically extruded injector and is poured into a mould by plug hole 11, keeps 110 degrees Celsius to continue insulations 2 hours after casting complete;
5) the mould erecting bed automatically extruding injector from resin takes out mould and carries out die sinking, the transformer that die sinking obtains leaves the anchor post hole that 3 anchor posts 7 are formed, then is placed in incubator by this transformer be incubated 8 hours under 110 degrees Celsius;
6) transformer of step 5 gained is carried out silica gel sealing, the anchor post hole of transformer is made to complete silicone filler, namely the resin-cast sealing (resin extrudes the resin injection of injector automatically, die sinking and silica gel sealing are the ordinary skill in the art, and the present embodiment no longer describes in detail) of outdoor mutual inductor is completed.
Outdoor mutual inductor and the maximum difference of indoor mutual inductor are outdoor mutual inductor must carry out silica gel sealing, and indoor mutual inductor does not have silica gel sealing, the transformer of the utility model step 5 gained leaves the anchor post hole that 3 anchor posts 7 are formed, anchor post hole causes mutual inductor coil to be exposed to the external world, makes it can not be used for indoor mutual inductor and uses.
Above embodiment is the unrestricted the technical solution of the utility model in order to explanation only, although be described in detail the utility model with reference to above-described embodiment, those of ordinary skill in the art is to be understood that: still can modify to the utility model or equivalent replacement, and not departing from any modification or partial replacement of spirit and scope of the present utility model, it all should be encompassed in the middle of right of the present utility model.
Claims (5)
1. the mould of outdoor mutual inductor, it comprises the upper die and lower die for surrounding mold cavity, described patrix offers the plug hole and steam vent that are communicated with described mold cavity, it is characterized in that: in described mold cavity, be provided with core rod, the two ends up and down of described core rod are connected with upper die and lower die respectively, described patrix offers the upper groove matched with core rod upper end, described counterdie offers the low groove matched with core rod lower end, the two ends up and down of described core rod are connected in upper groove and low groove respectively, the part that described core rod is positioned at mold cavity is cylindrical, described mold cavity inner ring winding mold core is provided with one group for supporting the anchor post of mutual inductor coil, and anchor post is fixedly connected with described counterdie, and the upper end of anchor post is provided with the stairstepping chuck for clamping mutual inductor coil outward flange and lower limb.
2. the mould of outdoor mutual inductor according to claim 1, is characterized in that: the position that described upper die and lower die connect offers the wire hole for placing mutual inductor coil outlet.
3. the mould of outdoor mutual inductor according to claim 2, is characterized in that: one group of described anchor post is made up of 3 anchor posts, and 3 anchor posts are positioned on same circle, and the central angle between adjacent anchor post is set to 120 °.
4. the mould of outdoor mutual inductor according to claim 3, it is characterized in that: the side of described upper die and lower die is fixedly installed upper mounted plate and bottom plate respectively, fixed plate and bottom plate are corresponding up and down and be fixedly connected with by fastening bolt.
5. the mould of outdoor mutual inductor according to claim 4, it is characterized in that: the position that described counterdie contacts with described patrix is provided with counterdie projection, the position that described patrix contacts with described counterdie offers the patrix groove matched with described counterdie projection, and described counterdie projection is connected in described patrix groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420728420.7U CN204398220U (en) | 2014-11-28 | 2014-11-28 | The mould of outdoor mutual inductor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420728420.7U CN204398220U (en) | 2014-11-28 | 2014-11-28 | The mould of outdoor mutual inductor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204398220U true CN204398220U (en) | 2015-06-17 |
Family
ID=53422115
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420728420.7U Withdrawn - After Issue CN204398220U (en) | 2014-11-28 | 2014-11-28 | The mould of outdoor mutual inductor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204398220U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104526940A (en) * | 2014-11-28 | 2015-04-22 | 许昌永新电气股份有限公司 | Forming die of outdoor mutual inductor, and casting fixing and sealing method of outdoor mutual inductor |
-
2014
- 2014-11-28 CN CN201420728420.7U patent/CN204398220U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104526940A (en) * | 2014-11-28 | 2015-04-22 | 许昌永新电气股份有限公司 | Forming die of outdoor mutual inductor, and casting fixing and sealing method of outdoor mutual inductor |
| CN104526940B (en) * | 2014-11-28 | 2016-08-17 | 许昌永新电气股份有限公司 | The mould of outdoor mutual inductor and cast sealing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150617 Effective date of abandoning: 20160817 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |