CN203338962U - Mutual inductor - Google Patents
Mutual inductor Download PDFInfo
- Publication number
- CN203338962U CN203338962U CN2013203861751U CN201320386175U CN203338962U CN 203338962 U CN203338962 U CN 203338962U CN 2013203861751 U CN2013203861751 U CN 2013203861751U CN 201320386175 U CN201320386175 U CN 201320386175U CN 203338962 U CN203338962 U CN 203338962U
- Authority
- CN
- China
- Prior art keywords
- lower cover
- projection
- holding tank
- groove
- inner casing
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to the technical field of electromagnetic products, in particular to a mutual inductor. The mutual inductor is provided with an outer shell which comprises a lower cover and an upper cover, a containing groove is arranged in the lower cover, a convex column which protrudes upwards is arranged on the bottom inside the containing groove, and a bearing shoulder is arranged on the inner circumferential wall of an upper end opening of the containing groove. Two pin lead-out openings which are communicated with the containing groove are formed in one side of the lower cover. The upper cover is embedded on the upper end opening of the containing groove and is borne and positioned by the bearing shoulder. The upper cover is provided with a sleeved hole, and the sleeved hole is connected with the protruded convex column of the lower cover in a sleeved mode. An inner shell which allows a coil to wind is arranged in the containing groove of the lower cover in an embedded mode, and the convex column which protrudes upwards on the bottom of the containing groove extends to penetrate through a middle hole of the inner shell. Lead-out pins of the coil wound on the inner shell are led out from the two pin lead-out openings in one side of the lower cover in a separating mode. The mutual inductor is tight in combination, the assembling of the inner shell is stable and does not loosen, pouring sealants can be reduced, cost is saved, the assembling process is simplified, production efficiency is improved, and the short circuit problem of the coil and a resistor is solved.
Description
Technical field:
The utility model relates to the electromagnetic product technical field, especially relates to earth leakage protective mutual inductance
Device.
Background technology:
General instrument transformer includes shell and interior shell structure, and the inner casing group is provided with magnet and coil, in
Shell is embedded in shell, and embedding is in aggregates, and concrete operation is: routing, and hanging wire, wicking,
The semi-finished product test, allotment glue, embedding, outward appearance processing etc., casting glue is long complete curing time,
Outward appearance has glue to overflow, and need to expend a large amount of frictioning that manually go; Trace it to its cause be shell and in
Between shell due to the combining structure defect.
The utility model content:
It is a kind of simple in structure that the purpose of this utility model is to provide, and easily assembling, reduce casting glue,
Optimize the instrument transformer of operation.
For achieving the above object, the utility model adopts following technical scheme:
A kind of instrument transformer, it has:
One shell, shell comprises a lower cover and a upper cover, lower cover inside has holding tank, holds
The groove inner bottom part is provided with the projection raised up, and the internal perisporium of the upper port of holding tank is provided with carrying
Shoulder; A side in lower cover is provided with two stitch export mouths that are communicated with holding tank; Described upper cover embedding
Be loaded on the upper port of holding tank and located by carrying shoulder support, upper cover has sleeve joint hole, this cover
Connect the projection that borehole jack connects the lower cover projection;
One inner casing for the coil winding, inner casing has mesopore, and inner casing is flush-mounted in the holding tank of lower cover
In, the projection that the holding tank inner bottom part raises up protrudes out the mesopore through inner casing; Described inner casing
The leading foot of the coil of upper winding is separated and is drawn from two stitch export mouths of lower cover one side.
Described holding tank is Ω shape, and the flat U groove of evagination extension is arranged in a side of holding tank, under
Two stitch export mouths that cover are opened in the male part of flat U groove, at flat U groove
The left and right sidewall is provided with the guide-localization groove, and this guide-localization groove coordinates the leg of upper cover corresponding site
Insert assembling.
The projection of described lower cover projection is the barrel mast structure, the height of projection of projection and holding tank upper
Port is concordant.
The utility model can be realized mutually combining closely between lower cover, upper cover and inner casing, inner casing
Assembling is stable, not loosening, can reduce casting glue, cost-saving, simplifies assembly process, improves
Production efficiency, and solve coil and resistive short phenomenon.
The utility model advantage again is simple in structure, easily makes and assembles, and cost is low.
The accompanying drawing explanation:
The perspective view that accompanying drawing 1 is the utility model preferred embodiment;
The Facad structure schematic diagram that accompanying drawing 2 is Fig. 1 embodiment;
Accompanying drawing 3 is along the shell sectional structure schematic diagram of B-B line in Fig. 2;
Accompanying drawing 4 is along the shell sectional structure schematic diagram of C-C line in Fig. 2;
The inner casing structural representation that accompanying drawing 5 is Fig. 1 embodiment;
The inner casing that accompanying drawing 6 is Fig. 1 embodiment and shell assembling structure schematic diagram.
Embodiment:
Below in conjunction with accompanying drawing, the utility model is further illustrated:
Consult shown in Fig. 1 ~ 6, the relevant a kind of instrument transformer of the utility model, it has a shell,
Shell comprises a lower cover 1 and a upper cover 2, and lower cover 1 inside has holding tank 11, in figure, holds
Receive groove 11 for Ω shape, the flat U groove 114 of evagination extension is arranged, tool in a side of holding tank 11
Directivity is arranged.Holding tank 11 inner bottom parts are provided with the projection 111 raised up, holding tank 11
The internal perisporium of upper port is provided with carrying shoulder 113; Be provided with to be communicated with in a side of lower cover 1 and hold
12 of 12, two stitch export mouths of two stitch export mouths of groove 11 are opened in flat U groove
114 male part is provided with guide-localization groove 1141 on the sidewall of the left and right of flat U groove 114;
Described upper cover 2 is flush-mounted in the upper port of holding tank 11 and is located by carrying shoulder 113 supports,
The upper port coupling of upper cover 2 shapes, size and holding tank 11, and held by carrying shoulder 113
The holder location, thereby embed stable.Upper cover 2 has sleeve joint hole 21, under these sleeve joint hole 21 sockets
Make, and meet the serviceability requirement, the height of projection of projection 111 and holding tank 11 upper
Port is concordant, makes lower cover 1 and the rear integraty of upper cover 2 combination stronger.Upper cover 2 corresponding sites are established
Leg 22 is arranged, the guide-localization groove 1141 that leg 22 inserts on flat U groove 114 left and right sidewalls
Assembling, have directivity assembling and multiple spot snapping, makes assembling more firm.One confession coil winding
Inner casing 3 has mesopore 31, and as shown in Figure 5, inner casing 3 is toroidal, inner casing 3 inside
Can be embedded with magnet, inner casing 3 peripheries are winding coil (not shown), to meet work
Need.Inner casing 3 is flush-mounted in the holding tank 11 of lower cover 1, and holding tank 11 inner bottom parts are convex
111 of projections that rise protrude out the mesopore 31 through inner casing 3, locate, and do not do guaranteeing
While relating to coiling, can give inner casing 3 firm, inner casing 3 sizes can be relatively compacter, like this can
Dwindle the gap between inner casing 3 and holding tank 11, effectively reduce casting glue, cost-saving,
Simplify assembly process.The projection 111 of the sleeve joint hole 21 socket lower cover projections of upper cover 2, and on
The leg 22 that covers 2 corresponding sites inserts the guide-localization groove on flat U groove 114 left and right sidewalls
During 1141 assembling, also give to compress accordingly inner casing 3, reinforced assembly is structural; Realize lower cover 1,
Mutually combining closely between upper cover 2 and inner casing 3, the inner casing assembling is stable, not loosening, reduces
Casting glue, simplify assembly process, enhances productivity.On inner casing 3, the coil of winding draws
Pin and resistance stitch are separated and are drawn from two stitch export mouths 12 of lower cover 1 one sides, solve line
Circle and resistive short phenomenon; Simple in structure, easily to make and assemble, cost is low.
Certainly, abovely in conjunction with execution mode, the utility model being described in detail, is only explanation
Technical conceive of the present utility model and characteristics, its purpose is to allow the person skilled in the art understand
Content of the present utility model is also implemented, and can not limit protection model of the present utility model with this
Enclose, the equivalence of doing according to the utility model Spirit Essence therefore all changes or modifies, and all should contain
In protection range of the present utility model.
Claims (3)
1. an instrument transformer, is characterized in that: have
One shell, shell comprises a lower cover (1) and a upper cover (2), the inner tool of lower cover (1)
Holding tank (11) is arranged, and holding tank (11) inner bottom part is provided with the projection (111) raised up,
The internal perisporium of the upper port of holding tank (11) is provided with carrying shoulder (113); In lower cover (1)
A side be provided with two the stitch export mouths (12) that are communicated with holding tank (11); Described upper cover (2)
Be flush-mounted in the upper port of holding tank (11) and located upper cover by carrying shoulder (113) support
(2) there is sleeve joint hole (21), the projection of this sleeve joint hole (21) socket lower cover (1) projection
（111）；
One inner casing (3) for the coil winding, inner casing (3) has mesopore (31), inner casing (3)
Be flush-mounted in the holding tank (11) of lower cover (1), holding tank (11) inner bottom part raises up
Projection (111) protrude out the mesopore (31) through inner casing (3); On described inner casing (3)
The leading foot of the coil of winding is separated from two stitch export mouths (12) of lower cover (1) one side
Draw.
2. a kind of instrument transformer according to claim 1, is characterized in that: described holding
Groove (11) is Ω shape, and the flat U groove (114) of evagination extension is arranged in a side of holding tank (11),
Two stitch export mouths (12) on lower cover (1) are opened in flat U groove (114)
Male part is provided with guide-localization groove (1141) on the left and right sidewall of flat U groove (114),
This guide-localization groove (1141) coordinates leg (22) the insertion group of upper cover (2) corresponding site
Dress.
3. a kind of instrument transformer according to claim 1, is characterized in that: described lower cover
(1) projection (111) of projection is the barrel mast structure, height of projection and the appearance of projection (111)
The upper port of groove (11) received is concordant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203861751U CN203338962U (en) | 2013-07-01 | 2013-07-01 | Mutual inductor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203861751U CN203338962U (en) | 2013-07-01 | 2013-07-01 | Mutual inductor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203338962U true CN203338962U (en) | 2013-12-11 |
Family
ID=49707626
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203861751U Expired - Fee Related CN203338962U (en) | 2013-07-01 | 2013-07-01 | Mutual inductor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203338962U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106783116A (en) * | 2017-02-13 | 2017-05-31 | 安徽君华舜义恩佳非晶材料有限公司 | A kind of high reliability cobalt-based ferromagnetic core current transformer |
-
2013
- 2013-07-01 CN CN2013203861751U patent/CN203338962U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106783116A (en) * | 2017-02-13 | 2017-05-31 | 安徽君华舜义恩佳非晶材料有限公司 | A kind of high reliability cobalt-based ferromagnetic core current transformer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131211 Termination date: 20160701 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |