CN109655642A - Open-type residual current transformer - Google Patents
Open-type residual current transformer Download PDFInfo
- Publication number
- CN109655642A CN109655642A CN201910064248.7A CN201910064248A CN109655642A CN 109655642 A CN109655642 A CN 109655642A CN 201910064248 A CN201910064248 A CN 201910064248A CN 109655642 A CN109655642 A CN 109655642A
- Authority
- CN
- China
- Prior art keywords
- lower case
- shell
- lower casing
- upper housing
- residual current
- 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.)
- Granted
Links
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 9
- 238000000034 method Methods 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 6
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 241000826860 Trapezium Species 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 230000012447 hatching Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
- G01R15/14—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks
- G01R15/18—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transformers For Measuring Instruments (AREA)
Abstract
The present invention provides a kind of open-type residual current transformers, the open-type residual current transformer includes cricoid shell, the shell is made of upper shell and lower casing, upper shell and lower casing are in semi-circular, upper shell tips upside down on lower casing, upper shell is assembled by upper housing and upper case cover plate, and lower casing is assembled by lower case and lower case cover board；It can be fixedly connected up and down by two kinds of buckles；It is mounted on a U-shaped pushing block at the both ends of lower case, pushing up U-shaped pushing block makes to release clamping engagement between upper-lower casing.Residual current transformer provided by the invention simplifies dismounting process, so that dismounting is more convenient.Open-type residual current transformer provided by the invention simplifies dismounting process, so that dismounting is more convenient.
Description
Technical field
The present invention relates to electric fields, and in particular to arrives a kind of open-type residual current transformer.
Background technique
Mutual inductor in the prior art generally includes a shell and the magnet ring for being set to shell, and shell surrounds a confession
The cavity that cable is worn, when cable wears cavity, mutual inductor detects cable.
Above-mentioned mutual inductor in the prior art has the disadvantage in that
1, shell is overall structure, so that cable can only be arranged in cavity by end.
2, two parts of the openable mutual inductor of shell, current this mutual inductor are generally fixed by screw together, and one
Aspect installs more troublesome；Iron core (the forming electromagnet) leakage field for being wound with coil simultaneously is more serious, by bus cable magnetic field
Influence very causes greatly residual current signal detection errors very big.
Summary of the invention
The present invention provides a kind of open-type residual current transformer shells, and the shell is by upper shell and lower casing group
At upper shell and lower casing are in semi-circular, and upper shell tips upside down on lower casing；
Upper shell is assembled by upper housing and upper case cover plate, lower casing by lower case and lower case cover board assembling and
The back side of upper housing and lower case is separately mounted at, upper housing cover board and lower case cover board；
The positive both ends of upper housing and the both ends of upper case cover back are provided with the first buckle, lower case positive two
The both ends at end and the lower case cover board back side are provided with the first convex block, and the first buckle is shaped in the outer wall of shell, and first
Convex block is shaped in the outer wall of lower casing；
It is additionally provided with rotatable second buckle at left and right sides of upper housing, is provided at left and right sides of lower case and the second buckle
The corresponding grab in position, the second buckle include the handle piece that rotation is fixed on the key seat at left and right sides of upper housing, Yi Jizhuan
The snap ring being mounted on handle piece is moved, centre section line of second buckle about upper housing left and right directions at left and right sides of upper housing
It is asymmetric；
Be mounted on a U-shaped pushing block at the both ends of lower case, three side inner walls of U-shaped pushing block respectively with lower case just
Face, side and the fitting of lower case cover board, and the inner wall of two parallel edges of U-shaped pushing block is provided with fixture block, lower case both ends
Front and lower case cover board are provided with the sliding slot of vertical direction, and the inner wall fixture block on two sides of U-shaped pushing block is stuck in lower case
And in lower case cover board sliding slot.
Further, lower casing bottom is integrally formed with a pedestal, and the left and right ends of pedestal are provided with through pedestal
The fixed strip hole of the transverse direction of whole thickness.
Further, the top margin of U-shaped pushing block is provided with chamfering.
Further, on front side of U-shaped pushing block and rear side bottom end is provided with the step outwardly protruded, and bench floor is provided with
Skid resistance strip.
Further, the section of the first convex block is right-angled trapezium and bevel edge is arranged upward.
Shell is divided into two parts up and down by open-type residual current transformer provided by the invention, the two parts are logical
It crosses snap to be connected together, greatlies simplify assemble flow；Convenient disassembly is considered simultaneously, we set at lower casing both ends
Be equipped with push jack, when need we by shell up and down two be partially separated and come, we push up push jack, and push jack is sliding up
The buckle of upper shell is pushed up outward in dynamic process, so that being detached between the buckle of upper shell and the convex block of lower casing, and then is solved
Except snapping connection between upper lower casing, and then very easily upper lower casing can be separated, it is solid with screw compared to more traditional
Surely upper lower casing, scheme provided by the invention greatly simplify assemble flow, while integrally changing to mutual inductor smaller, are suitble to big
Range is promoted the use of；The situation for avoiding mistake installation using fool-proof design is buckled simultaneously, guarantees integral device performance.
Detailed description of the invention
It to describe the technical solutions in the embodiments of the present invention more clearly, below will be to embodiment or description of the prior art
Needed in attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description is only of the invention some
Embodiment for those of ordinary skill in the art without any creative labor, can also be according to these
Attached drawing obtains other attached drawings.
Fig. 1 is the main view of open-type residual current transformer provided by the invention；
Fig. 2-3 shows shell and lower casing is separated from the schematic diagram come；
Fig. 4 is the explosive view of open-type residual current transformer shell provided by the invention；
Fig. 5 a and 5b respectively illustrate the snapped-in position figure of upper housing left and right side；
Fig. 6 is the perspective view of push jack；
Fig. 7 is the schematic diagram of the second buckle；
Fig. 8 is the partial schematic diagram of lower case；
Fig. 9 a is that upper lower casing is transferred on schematic diagram together；
Fig. 9 b shows the schematic diagram for pushing up push jack.
Specific embodiment
In the following description, a large amount of concrete details are given so as to provide a more thorough understanding of the present invention.So
And it is obvious to the skilled person that the present invention may not need one or more of these details and be able to
Implement.In other examples, in order to avoid confusion with the present invention, for some technical characteristics well known in the art not into
Row description.
In order to thoroughly understand the present invention, detailed step and detailed structure will be proposed in following description, so as to
Illustrate technical solution of the present invention.Presently preferred embodiments of the present invention is described in detail as follows, however other than these detailed descriptions, this
Invention can also have other embodiments.
The present invention provides a kind of open-type residual current transformer, the open-type residual current transformer includes ring
The shell 300 of shape, the shell are made of upper shell 100 and lower casing 200, and upper shell 100 and lower casing 200 are in semi-ring
Shape, upper shell 100 tip upside down on lower casing 200；
Upper shell 100 is assembled by upper housing 1 and upper housing cover board 1a, and lower casing 200 is by lower case 10 and lower case
Cover board 10a assembles, and upper housing cover board 1a and lower case cover board 10a are separately mounted to the back side of upper housing 1 and lower case 10；
The both ends at the 1 cover board back side of the positive both ends of upper housing 1 and upper housing are provided with the first buckle 2, lower case front
Both ends and the both ends at the lower case cover board back side be provided with the first convex block 3, the first buckle 2 is shaped in the outer of shell
Wall, the first convex block 3 are shaped in the outer wall of lower casing；
It is additionally provided with rotatable second buckle 20 at left and right sides of upper housing 1, is provided with and second at left and right sides of lower case
The corresponding grab of snapped-in position, the second buckle include the handle piece that rotation is fixed on the key seat 1b of 1 left and right sides of upper housing
20a, and the snap ring 20b being rotatably installed on handle piece, the second buckle of 1 left and right sides of upper housing is about upper housing 1 or so
The centre section line in direction is asymmetric；
A U-shaped pushing block 4 (as shown in Figure 6), three side inner walls point of U-shaped pushing block 4 are mounted at the both ends of lower case 10
It is not bonded with the front of lower case 10, side and lower case cover board 10a, and the inner wall setting of two parallel edges of U-shaped pushing block 4
There is fixture block 42, the front at 10 both ends of lower case and lower case cover board 10a are provided with the sliding slot 11 of vertical direction, 4 liang of U-shaped pushing block
The fixture block 42 of a side inner wall is stuck in the sliding slot 11 of lower lower case 10 and lower case cover board 10a, pushes up U-shaped pushing block 4
Make to release between the first buckle 2 and the first convex block 3 and be engaged by clamping, it is simpler to illustrate as shown in the regional area B of Fig. 9 a-9b
Just, it illustrates only U-shaped pushing block 4 and pushes 2 turned-out schematic diagrames of buckle, the convex block 3 of lower case 10 is not shown in figure.
As shown in figure 5 a and 5b, which respectively show in one embodiment, the second buckle at left and right sides of upper housing shows
It is intended to, as can be seen, A-A is the hatching of upper housing left and right directions, and the second buckle on the left of upper housing is set on the left of upper housing
Center, the second buckle 20 on the right side of upper housing are not located at center on the right side of upper housing but are slightly proximal to the back side of upper housing,
The second buckle 20 i.e. at left and right sides of upper housing is asymmetric about the centre section line of upper housing left and right directions.Present invention employs
The design of Anti-stiff, if user upper housing is installed and when lower case both forward and reverse directions it is corresponding on, the of upper housing two sides
Two buckles cannot be stuck on the grab of lower case two sides, to be unable to complete clamping engagement, only upper housing according to specification side
It could complete to be engaged by clamping to tipping upside down in lower case.
200 bottom of lower casing is integrally formed with a pedestal 9, and the left and right ends of pedestal 9 are provided with through pedestal 9 entirely
The fixed strip hole 8 of the transverse direction of thickness, band pass through the fixed strip hole 8 of the transverse direction and can fix open-type residual current transformer
On other devices, quickly fixed effect is played.
The top margin of U-shaped pushing block 4 is provided with chamfering, can preferably will be each so that U-shaped pushing block 4 is during moving up
It pushes up outward buckle bottom end.Further, U-shaped 4 front side of pushing block and rear side bottom end are provided with the step 41 outwardly protruded, and step
41 bottom surfaces are provided with skid resistance strip 43.By the way that step 41 is arranged, manpower is more easily slid up U-shaped pushing block 4
It is dynamic, while also improving the integral strength of U-shaped pushing block 4.The skid resistance strip 43 that 41 bottom surface of step is set is for improving frictional force.
The section (perpendicular to the section on 10 surface of lower case) of first convex block 3 is right-angled trapezium and bevel edge is arranged upward, such as
Shown in Fig. 8.
Shell is divided into two parts up and down by open-type residual current transformer provided by the invention, the two parts are logical
It crosses snap to be connected together, greatlies simplify assemble flow.In addition, solid by two kinds of snaps between upper lower casing
Fixed, after upper shell is mounted on lower casing, the bayonet of the first buckle is stuck on the first convex block, is only borrowed first and is buckled on fixed
The mode of lower casing possibly can not to be fitted close between lower casing, and the end face of the two contact can may also exist seamed
Gap, therefore we are also additionally provided with the second buckle avoids internal components contact not so that upper lower casing combines even closer
It is good.Convenient disassembly is considered simultaneously, we are provided with push jack at lower casing both ends, when needing us for two portions up and down of shell
Separate, we push up push jack, push jack during upward sliding by the first of the positive aspect of upper shell buckle to
Outer top, so that being detached between the first buckle and the convex block of lower casing of upper shell, and then the buckle released between upper lower casing connects
It connects, and then can very easily separate upper lower casing, it is provided by the invention compared to more traditional upper lower casing that is screwed
Scheme greatlies simplify assemble flow, while integrally changing to mutual inductor smaller, is suitable for large range promotion use.
Presently preferred embodiments of the present invention is described above.It is to be appreciated that the invention is not limited to above-mentioned
Particular implementation, devices and structures not described in detail herein should be understood as gives reality with the common mode in this field
It applies；Anyone skilled in the art, without departing from the scope of the technical proposal of the invention, all using the disclosure above
Methods and technical content many possible changes and modifications are made to technical solution of the present invention, or be revised as equivalent variations etc.
Embodiment is imitated, this is not affected the essence of the present invention.Therefore, anything that does not depart from the technical scheme of the invention, foundation
Technical spirit of the invention any simple modifications, equivalents, and modifications made to the above embodiment, still fall within the present invention
In the range of technical solution protection.
Claims (5)
1. a kind of open-type residual current transformer shell, which is characterized in that the shell is made of upper shell and lower casing, on
Shell and lower casing are in semi-circular, and upper shell tips upside down on lower casing；
Upper shell is assembled by upper housing and upper case cover plate, and lower casing is assembled by lower case and lower case cover board, on
Housing cover and lower case cover board are separately mounted to the back side of upper housing and lower case；
The positive both ends of upper housing and the both ends of upper case cover back are provided with the first buckle, the positive both ends of lower case and
The both ends at the lower case cover board back side are provided with the first convex block, and the first buckle is shaped in the outer wall of shell, the first convex block
It is shaped in the outer wall of lower casing；
It is additionally provided with rotatable second buckle at left and right sides of upper housing, is provided with and the second snapped-in position at left and right sides of lower case
Corresponding grab, the second buckle include the handle piece that rotation is fixed on the key seat at left and right sides of upper housing, and rotation peace
Snap ring on handle piece, the second buckle at left and right sides of upper housing be not right about the centre section line of upper housing left and right directions
Claim；
Be mounted on a U-shaped pushing block at the both ends of lower case, three side inner walls of U-shaped pushing block respectively with the front of lower case, side
Face and the fitting of lower case cover board, and the inner wall of two parallel edges of U-shaped pushing block is provided with fixture block, the front at lower case both ends and
Lower case cover board is provided with the sliding slot of vertical direction, and the inner wall fixture block on two sides of U-shaped pushing block is stuck in lower case and lower casing
In body cover board sliding slot.
2. open-type residual current transformer as described in claim 1, which is characterized in that lower casing bottom is integrally formed with one
Pedestal, and the left and right ends of pedestal are provided with through the fixed strip hole of transverse direction of pedestal whole thickness.
3. open-type residual current transformer as described in claim 1, which is characterized in that the top margin of U-shaped pushing block is provided with down
Angle.
4. open-type residual current transformer as described in claim 1, which is characterized in that on front side of U-shaped pushing block and rear side bottom end
It is provided with the step outwardly protruded, and bench floor is provided with skid resistance strip.
5. open-type residual current transformer as described in claim 1, which is characterized in that the section of the first convex block is right angle ladder
Shape and bevel edge is arranged upward.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910064248.7A CN109655642B (en) | 2019-01-23 | 2019-01-23 | Open type residual current transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910064248.7A CN109655642B (en) | 2019-01-23 | 2019-01-23 | Open type residual current transformer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109655642A true CN109655642A (en) | 2019-04-19 |
| CN109655642B CN109655642B (en) | 2023-12-01 |
Family
ID=66120405
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910064248.7A Active CN109655642B (en) | 2019-01-23 | 2019-01-23 | Open type residual current transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109655642B (en) |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006343157A (en) * | 2005-06-07 | 2006-12-21 | Three Stone:Kk | Current sensor |
| CN203055649U (en) * | 2013-01-30 | 2013-07-10 | 杭州大互互感器有限公司 | Open-close type zero sequence current mutual inductor |
| US20140173842A1 (en) * | 2012-12-21 | 2014-06-26 | Murray W. Davis | Conductor cleaning brush assembly for overhead electric power lines |
| CN204011025U (en) * | 2014-07-18 | 2014-12-10 | 浙江迪克森电器有限公司 | Split type electric current transformer |
| CN105652066A (en) * | 2014-11-28 | 2016-06-08 | 莱姆知识产权股份有限公司 | Electrical current transducer with electrostatic shield |
| CN206524750U (en) * | 2016-12-19 | 2017-09-26 | 江西明伟电子有限公司 | A kind of easy-to-dismount Switching Power Supply |
| CN107566283A (en) * | 2017-10-19 | 2018-01-09 | 刘华英 | A kind of easy-to-dismount network router |
| CN207367775U (en) * | 2017-10-23 | 2018-05-15 | 济南铂晶电子科技有限公司 | Open-type residual current transformer |
| CN207517509U (en) * | 2017-11-20 | 2018-06-19 | 浙江迪克森电器有限公司 | Button-type open-close type low-voltage current mutual inductor |
| CN208173351U (en) * | 2018-04-08 | 2018-11-30 | 江阴市星火电子科技有限公司 | It is a kind of can be with the open-close type mutual inductor of measure traverse line temperature |
| CN208226199U (en) * | 2018-06-12 | 2018-12-11 | 安福烨翔精密电子有限公司 | It is a kind of with the reticle plug provided of dust reduction capability |
| CN109036822A (en) * | 2018-07-16 | 2018-12-18 | 江阴市星火电子科技有限公司 | A kind of assembly technology of outdoor open-close type current transformer |
| CN209640383U (en) * | 2019-01-23 | 2019-11-15 | 柏宜照明（上海）股份有限公司 | Open-type residual current transformer |
-
2019
- 2019-01-23 CN CN201910064248.7A patent/CN109655642B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006343157A (en) * | 2005-06-07 | 2006-12-21 | Three Stone:Kk | Current sensor |
| US20140173842A1 (en) * | 2012-12-21 | 2014-06-26 | Murray W. Davis | Conductor cleaning brush assembly for overhead electric power lines |
| CN203055649U (en) * | 2013-01-30 | 2013-07-10 | 杭州大互互感器有限公司 | Open-close type zero sequence current mutual inductor |
| CN204011025U (en) * | 2014-07-18 | 2014-12-10 | 浙江迪克森电器有限公司 | Split type electric current transformer |
| CN105652066A (en) * | 2014-11-28 | 2016-06-08 | 莱姆知识产权股份有限公司 | Electrical current transducer with electrostatic shield |
| CN206524750U (en) * | 2016-12-19 | 2017-09-26 | 江西明伟电子有限公司 | A kind of easy-to-dismount Switching Power Supply |
| CN107566283A (en) * | 2017-10-19 | 2018-01-09 | 刘华英 | A kind of easy-to-dismount network router |
| CN207367775U (en) * | 2017-10-23 | 2018-05-15 | 济南铂晶电子科技有限公司 | Open-type residual current transformer |
| CN207517509U (en) * | 2017-11-20 | 2018-06-19 | 浙江迪克森电器有限公司 | Button-type open-close type low-voltage current mutual inductor |
| CN208173351U (en) * | 2018-04-08 | 2018-11-30 | 江阴市星火电子科技有限公司 | It is a kind of can be with the open-close type mutual inductor of measure traverse line temperature |
| CN208226199U (en) * | 2018-06-12 | 2018-12-11 | 安福烨翔精密电子有限公司 | It is a kind of with the reticle plug provided of dust reduction capability |
| CN109036822A (en) * | 2018-07-16 | 2018-12-18 | 江阴市星火电子科技有限公司 | A kind of assembly technology of outdoor open-close type current transformer |
| CN209640383U (en) * | 2019-01-23 | 2019-11-15 | 柏宜照明（上海）股份有限公司 | Open-type residual current transformer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109655642B (en) | 2023-12-01 |
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