CN205789475U - A kind of open type current transformer - Google Patents
A kind of open type current transformer Download PDFInfo
- Publication number
- CN205789475U CN205789475U CN201620438143.5U CN201620438143U CN205789475U CN 205789475 U CN205789475 U CN 205789475U CN 201620438143 U CN201620438143 U CN 201620438143U CN 205789475 U CN205789475 U CN 205789475U
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- magnetic core
- upper cover
- current transformer
- open type
- type current
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Abstract
This utility model provides a kind of open type current transformer, including can the corresponding magnetic core (3) connected and magnetic core framework assembly (6) up and down, described open type current transformer also includes the upper cover (1) for installing magnetic core (3) and is used for installing the lower case of magnetic core framework assembly (6), magnetic core (3) can move up and down, magnetic core (3) can also separate with magnetic core framework assembly (6), it is characterized in that, described open type current transformer also includes power to be provided to make the elastic component (2) of magnetic core (3) pressing magnetic core framework assembly (6) to magnetic core (3).This open type current transformer can ensure that after being mounted with elastic component between upper and lower magnetic core, the strength of contact is constant, thus improves the certainty of measurement of transformer.
Description
Technical field
This utility model relates to electric energy measuring equipment field, particularly a kind of open type current transformer.
Background technology
Existing open type current transformer such as Chinese patent CN 204464030U, July 8 2015 publication date,
Disclose " a kind of open type current transformer ", this open type current transformer, be by iron core, shaped framework coil and outer
Shell is formed, and described iron core is cut into upper core by annular core and lower core forms；The frame of upper core is longer,
The frame of lower core is the shortest；Coil is wound on two hollow backbones, and is enclosed within the frame of upper core, two coils from parallel connection of coils groups
Become transformer secondary coil, and will guide on binding post end to end；Described shell is also made up of upper shell and lower casing,
Having two binding posts on upper shell, it is renovated, upper core and hollow backbone and secondary coil are contained in shell, under
Having buckle and trip push button and installation auxiliary on shell, shell is built with lower core；Upper lower casing is while living by pivot pin and joining
Connect；This current transformer installation and repairing displacement extremely convenient.
But open type current transformer there is also problems with: 1, magnetic aligning accuracy is poor, 2, sheathing material connect muscle
Repeatedly open Guan Bi and easily turn white elongated, 3, the pretightning force of upper and lower magnetic core uncontrollable.
Utility model content
In order to solve the inconstant problem of strength contacted between the upper and lower magnetic core of existing open type current transformer, this
Utility model provides a kind of open type current transformer, and this open type current transformer is permissible after being mounted with elastic component
Ensure that between upper and lower magnetic core, the strength of contact is constant, thus improve the certainty of measurement of transformer.
This utility model solves its technical problem and be the technical scheme is that
A kind of open type current transformer, including can the magnetic core of corresponding connection and magnetic core framework assembly up and down, described in open
Mouth formula current transformer also includes the upper cover for installing magnetic core and for installing the lower case of magnetic core framework assembly, magnetic
Core can move up and down, and magnetic core can also be with magnetic core framework components apart, and described open type current transformer also includes energy
Enough elastic components making magnetic core pressing magnetic core framework assembly to magnetic core offer power.
Elastic component is the spring or shell fragment being arranged in upper cover.
Elastic component is fixed by snap in the upper end of upper cover, and magnetic core is positioned at the bottom of upper cover, elastic component and magnetic core
Upper end connects.
The U-shaped structure of magnetic core, magnetic core opening down, upper cover is provided with the slideway matched with magnetic core, and magnetic core is only capable of
Enough move up and down, in upper cover, be additionally provided with the retaining member being prevented from magnetic core disengaging upper cover.
The connecting portion of upper cover and described lower case is provided with the para-position assembly for exactitude position；This para-position assembly
Including being arranged at the locating dowel of upper end-face edge of this lower case and being arranged at the hole, location of lower edge of upper cover；Or
Person, this para-position assembly includes being arranged at the hole, location of the upper end-face edge of this lower case and being arranged at the lower end edge of upper cover
The locating dowel of edge；Locating dowel can mate grafting with this hole, location.
The upper end-face edge of this lower case is provided with two locating dowels, and the lower edge of upper cover is provided with hole, two described location,
The lower edge of upper cover is provided with and connects fixing upper connecting portion for screw, and upper connecting portion is in the hole, described location of two
Between, the upper end-face edge of this lower case is provided with and connects fixing lower connecting portion for screw, and lower connecting portion is in two
Between locating dowel, upper cover and this lower case can connect fixing through upper connecting portion and lower connecting portion by screw.
The side of the upper end-face edge of this lower case is provided with two locating dowels, and the upper end of locating dowel is hemispherical or taper,
The opposite side of the upper end-face edge of this lower case is provided with Lower shaft sleeve, the side of the lower edge of upper cover be provided with two described fixed
Hole, position, the opposite side of the lower edge of upper cover is provided with Upper shaft sleeve, by being arranged in upper shaft between upper cover and this lower case
Rotating shaft in set and Lower shaft sleeve connects, and upper cover can rotate relative to this lower case with this rotating shaft for axle.
Upper shaft sleeve and Lower shaft sleeve all with this rotating shaft interference fit.
This lower case includes lower casing setting up and down and base plate, and lower casing is the tubular structure of upper end closed, opening of lower casing
Down, the U-shaped structure of magnetic core, magnetic core opening down, the blind end of lower casing is provided with two inserted for magnetic core for mouthful end
Individual through hole.
Lower casing is connected fixing with the base plate of lamellar by screw, and the opening of lower casing can be closed by base plate.
The beneficial effects of the utility model are:
1, core assembly fixed form robust；
2, upset structure, closed orientation is accurate, fixing reliable, facilitates product to install and safeguards；
3, adjustable magnetic core pretightning force, it is convenient that installation is safeguarded, certainty of measurement is high.
Accompanying drawing explanation
The Figure of description of the part constituting the application is used for providing being further appreciated by of the present utility model, this practicality
Novel schematic description and description is used for explaining this utility model, is not intended that improper limit of the present utility model
Fixed.
Fig. 1 is the explosive view of this open type current transformer.
1, upper cover；2, elastic component；3, magnetic core；4, screw；5, lower casing；6, magnetic core framework assembly；7, the end
Plate；8, screw；
11, upper connecting portion；12, Upper shaft sleeve；
51, locating dowel；52, lower connecting portion；53, Lower shaft sleeve.
Detailed description of the invention
It should be noted that in the case of not conflicting, the embodiment in the application and the feature in embodiment can phases
Combination mutually.Describe this utility model below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
A kind of open type current transformer, including can the magnetic core 3 of corresponding connection and magnetic core framework assembly 6, institute up and down
State open type current transformer and also include the upper cover 1 for installing magnetic core 3 and for installing magnetic core framework assembly 6 times
Portion's housing, magnetic core 3 can move up and down, and magnetic core 3 can also separate with magnetic core framework assembly 6, described open type electricity
Current transformer also includes power to be provided to make magnetic core 3 press the elastic component 2 of magnetic core framework assembly 6 to magnetic core 3, as
Shown in Fig. 1.
This open type current transformer is in the rectangular coordinate system in space being made up of X, Y, Z axis, institute in the present embodiment
That states is the above-below direction along Z-direction up and down.Magnetic core 3 in this utility model is equivalent to Chinese patent CN
Lower core in 204464030U, magnetic core framework assembly 6 is equivalent to the upper ferrum in Chinese patent CN 204464030U
Core.Upper cover 1 can drive magnetic core 3 to overturn relative to lower case, and magnetic core 3 can move up and down in upper cover 1,
Time together with upper cover 1 is fastened with this lower case, elastic component 2 can make magnetic core 3 be pressed in magnetic core framework group
The upper surface of part 6, can regulate the magnetic core 3 pressure to magnetic core framework assembly 6 by changing different elastic components 2,
And make pressure between magnetic core 3 and magnetic core framework assembly 6 keep constant (the contact forces amount due to upper and lower magnetic core
The certainty of measurement of transformer is affected the biggest by size), thus improve the current measurement essence of this open type current transformer
Degree.
In the present embodiment, elastic component 2 can be to be arranged on upper cover 1 inner spring or shell fragment, and this spring can be existing
Helical spring, this shell fragment can be existing V-type or open annular metal clips.Between elastic component 2 and upper cover 1
For removably connecting, preferably elastic component 2 is fixed by snap in the upper end of upper cover 1, and magnetic core 3 is positioned at upper cover 1
Bottom in, the lower end of elastic component 2 is connected with the upper end of magnetic core 3, and the upper end of the upper end of elastic component 2 and upper cover 1 is even
Connect, as shown in Figure 1.
In the present embodiment, the U-shaped structure of magnetic core 3, magnetic core 3 opening down, upper cover 1 is provided with and magnetic core 3
The slideway matched, time i.e. together with upper cover 1 is fastened with this lower case, magnetic core 3 is only capable of and moves up and down
And can not move left and right or rotate, i.e. when upper cover 1 rotates 90 ° relative to this lower case, magnetic core 3 is only capable of
Move back and forth along X-direction and can not move up and down or rotate.It is additionally provided with in upper cover 1 and is prevented from magnetic core 3 disengaging
The retaining member of lid 1.This retaining member can be to be arranged on the back-off (i.e. protuberance) of upper cover 1 circumferential inner surface,
Due to the working of plastics of upper cover 1, magnetic core 3 can deform by this back-off, magnetic core 3 by making upper cover 1 when mounted
Being restored to the original state by rear upper cover 1, this back-off can block upper cover 1 and prevent it from departing from magnetic core 3, and this back-off also should
Magnetic core 3 is made to keep certain activity.
In the present embodiment, in order to the magnetic core 3 made and magnetic core framework assembly 6 can connect by exactitude position, upper cover 1
It is provided with the para-position assembly for exactitude position with the connecting portion of described lower case；This para-position assembly includes arranging
In the locating dowel 51 of upper end-face edge of this lower case and be arranged at the hole, location of lower edge of upper cover 1, such as figure
Shown in 1；Or, this para-position assembly includes the hole, location being arranged at the upper end-face edge of this lower case and is arranged at
The locating dowel 51 of the lower edge of lid 1；Locating dowel 51 can mate grafting with this hole, location, so when upper cover 1 with
When this lower case is fastened together, locating dowel 51 can mate grafting with this hole, location, thus ensure that magnetic
Core 3 and magnetic core framework assembly 6 abutting joint precision.It is right that locating dowel 51 and the concrete size in this hole, location should meet
Position is the most satisfied facilitates opening and closing of upper cover 1, and the upper end of preferred orientation post 51 is hemispherical or taper.
In the present embodiment, the upper end-face edge of this lower case is provided with two locating dowels 51, the lower edge of upper cover 1
Being provided with hole, two described location, the lower edge of upper cover 1 is provided with and connects fixing upper connecting portion 11 for screw 4,
Upper connecting portion 11 is between the hole, described location of two, and the upper end-face edge of this lower case is provided with for screw 4 even
Connect fixing lower connecting portion 52, lower connecting portion 52 between two locating dowels 51, upper cover 1 and this lower case
Connecting portion 11 can be sequentially passed through by screw 4 and lower connecting portion 52 connects fixing, thus ensure that upper cover 1
The reliability being connected with this lower case, reality is also to ensure that magnetic core 3 and the repetitive positioning accuracy of magnetic core framework assembly 6.
In the present embodiment, two locating dowels 51 are arranged at the side of the upper end-face edge of this lower case, this lower case
The opposite side of the upper end-face edge of body is provided with Lower shaft sleeve 53, and hole, two described location is arranged at the lower edge of upper cover 1
Side, the opposite side of the lower edge of upper cover 1 is provided with Upper shaft sleeve 12, by wearing between upper cover 1 and this lower case
The rotating shaft being located in Upper shaft sleeve 12 and Lower shaft sleeve 53 connects, and such upper cover 1 just can be with this rotating shaft for axle relative to this
Lower case rotates.Ensure the precision of docking between magnetic core 3 and magnetic core framework assembly 6 to improve, decrease upper cover
Gap after being connected between 1 with lower case, preferably Upper shaft sleeve 12 and Lower shaft sleeve 53 all with this rotating shaft interference fit.
In the present embodiment, this lower case includes that lower casing 5 setting up and down and base plate 7, lower casing 5 are upper end closed
The tubular structure of lower ending opening, the i.e. opening of lower casing 5 down, the U-shaped structure of magnetic core 3, the opening court of magnetic core 3
Under, can be in three-back-shaped after magnetic core 3 and the corresponding connection of magnetic core framework assembly 6, the blind end of lower casing 5 is provided with for magnetic
Two through holes that core 3 inserts.Lower casing 5 is connected fixing with the base plate 7 of lamellar by screw 8, connects fixing rear base plate
The opening of lower casing 5 can be closed by 7.The model of screw 4 is M2.5x12, and the model of screw 8 is ST2.0x8.
This open type current transformer is capable of higher magnetic core aligning accuracy, improves the reliability of opening-closing structure, right
Pretightning force after magnetic core Guan Bi can be adjusted, and this open type current transformer can also realize good in-site installation and fall
Low difficulty of construction.
The above, only specific embodiment of the utility model, it is impossible to limit the scope that utility model is implemented with it,
So the displacement of its equivalent assemblies, or the equivalent variations made according to this utility model scope of patent protection and modification, all answer
Still fall within the category that this patent is contained.It addition, between technical characteristic and technical characteristic in this utility model, technology special
Levy between technical scheme, all can use with independent assortment between technical scheme and technical scheme.
Claims (10)
1. an open type current transformer, including can the corresponding magnetic core (3) connected and magnetic core framework assembly up and down
(6), described open type current transformer also includes the upper cover (1) for installing magnetic core (3) and is used for installing magnetic core
The lower case of skeleton component (6), magnetic core (3) can move up and down, and magnetic core (3) can also be with magnetic core framework
Assembly (6) separates, it is characterised in that described open type current transformer also includes to provide dynamic to magnetic core (3)
Power makes the elastic component (2) of magnetic core (3) pressing magnetic core framework assembly (6).
Open type current transformer the most according to claim 1, it is characterised in that elastic component (2) is for arranging
Spring in upper cover (1) or shell fragment.
Open type current transformer the most according to claim 1, it is characterised in that elastic component (2) is by card
Button is fixed in the upper end of upper cover (1), and magnetic core (3) is positioned at the bottom of upper cover (1), elastic component (2) and magnetic
The upper end of core (3) connects.
Open type current transformer the most according to claim 1, it is characterised in that magnetic core (3) U-shaped knot
Structure, magnetic core (3) opening down, upper cover (1) is provided with the slideway matched with magnetic core (3), magnetic core (3)
It is only capable of and moves up and down, in upper cover (1), be additionally provided with the retaining member being prevented from magnetic core (3) disengaging upper cover (1).
Open type current transformer the most according to claim 1, it is characterised in that upper cover (1) and described under
The connecting portion of portion's housing is provided with the para-position assembly for exactitude position；
This para-position assembly includes the locating dowel (51) being arranged at the upper end-face edge of this lower case and is arranged at upper cover (1)
The hole, location of lower edge；Or, this para-position assembly includes the hole, location being arranged at the upper end-face edge of this lower case
And it is arranged at the locating dowel (51) of the lower edge of upper cover (1)；
Locating dowel (51) can mate grafting with this hole, location.
Open type current transformer the most according to claim 5, it is characterised in that the upper end of this lower case
Edge is provided with two locating dowels (51), and the lower edge of upper cover (1) is provided with hole, two described location, upper cover (1)
Lower edge be provided with and connect fixing upper connecting portion (11) for screw (4), upper connecting portion (11) is positioned at two
Hole, described location between, the upper end-face edge of this lower case is provided with and connects fixing lower connecting portion for screw (4)
(52), lower connecting portion (52) is positioned between two locating dowels (51), and upper cover (1) and this lower case can be led to
Cross screw (4) and connect fixing through upper connecting portion (11) and lower connecting portion (52).
Open type current transformer the most according to claim 5, it is characterised in that the upper end of this lower case
The side at edge is provided with two locating dowels (51), and the upper end of locating dowel (51) is hemispherical or taper, this lower case
The opposite side of the upper end-face edge of body is provided with Lower shaft sleeve (53), and the side of the lower edge of upper cover (1) is provided with described in two
Hole, location, the opposite side of the lower edge of upper cover (1) is provided with Upper shaft sleeve (12), upper cover (1) and this lower case
Between connected by the rotating shaft that is arranged in Upper shaft sleeve (12) and Lower shaft sleeve (53), upper cover (1) can be with this turn
Axle is that axle rotates relative to this lower case.
Open type current transformer the most according to claim 7, it is characterised in that Upper shaft sleeve (12) and under
Axle sleeve (53) all with this rotating shaft interference fit.
Open type current transformer the most according to claim 1, it is characterised in that this lower case includes
The lower casing (5) of lower setting and base plate (7), lower casing (5) is the tubular structure of upper end closed, opening of lower casing (5)
Down, magnetic core (3) U-shaped structure, magnetic core (3) opening down, the blind end of lower casing (5) is provided with for mouthful end
Two through holes inserted for magnetic core (3).
Open type current transformer the most according to claim 9, it is characterised in that lower casing (5) and lamellar
Base plate (7) connect fixing by screw (8), the opening of lower casing (5) can be closed by base plate (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620438143.5U CN205789475U (en) | 2016-05-13 | 2016-05-13 | A kind of open type current transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620438143.5U CN205789475U (en) | 2016-05-13 | 2016-05-13 | A kind of open type current transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205789475U true CN205789475U (en) | 2016-12-07 |
Family
ID=57410519
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620438143.5U Active CN205789475U (en) | 2016-05-13 | 2016-05-13 | A kind of open type current transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205789475U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106205958A (en) * | 2016-08-23 | 2016-12-07 | 嘉兴市永信电子有限公司 | A kind of open-type current information gathers transformer |
| CN106847469A (en) * | 2017-03-22 | 2017-06-13 | 济南铂晶电子科技有限公司 | A kind of waterproof Open Type Electric Current Mutual Inductor and encapsulating method |
| CN108957094A (en) * | 2018-05-08 | 2018-12-07 | 湖南银河电气有限公司 | A kind of open-close type current sensor and its assemble method based on magnetic modulation |
| CN110085390A (en) * | 2019-06-04 | 2019-08-02 | 北京航天常兴科技发展股份有限公司 | A kind of modular current transformer |
| CN110459381A (en) * | 2019-09-03 | 2019-11-15 | 厦门振泰成科技有限公司 | A kind of open-close type current transformer |
| CN111083616A (en) * | 2019-12-19 | 2020-04-28 | 歌尔股份有限公司 | Vibration exciter for electronic product and electronic product |
| CN114144856A (en) * | 2019-07-31 | 2022-03-04 | Sht有限公司 | Current transformer module |
-
2016
- 2016-05-13 CN CN201620438143.5U patent/CN205789475U/en active Active
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106205958A (en) * | 2016-08-23 | 2016-12-07 | 嘉兴市永信电子有限公司 | A kind of open-type current information gathers transformer |
| CN106205958B (en) * | 2016-08-23 | 2018-04-17 | 嘉兴市永信电子有限公司 | A kind of open-type current information gathers mutual inductor |
| CN106847469A (en) * | 2017-03-22 | 2017-06-13 | 济南铂晶电子科技有限公司 | A kind of waterproof Open Type Electric Current Mutual Inductor and encapsulating method |
| CN106847469B (en) * | 2017-03-22 | 2018-10-02 | 济南铂晶电子科技有限公司 | A kind of waterproof Open Type Electric Current Mutual Inductor and encapsulating method |
| CN108957094A (en) * | 2018-05-08 | 2018-12-07 | 湖南银河电气有限公司 | A kind of open-close type current sensor and its assemble method based on magnetic modulation |
| CN110085390A (en) * | 2019-06-04 | 2019-08-02 | 北京航天常兴科技发展股份有限公司 | A kind of modular current transformer |
| CN114144856A (en) * | 2019-07-31 | 2022-03-04 | Sht有限公司 | Current transformer module |
| CN110459381A (en) * | 2019-09-03 | 2019-11-15 | 厦门振泰成科技有限公司 | A kind of open-close type current transformer |
| CN110459381B (en) * | 2019-09-03 | 2024-05-31 | 厦门振泰成科技有限公司 | Open-close type current transformer |
| CN111083616A (en) * | 2019-12-19 | 2020-04-28 | 歌尔股份有限公司 | Vibration exciter for electronic product and electronic product |
| CN111083616B (en) * | 2019-12-19 | 2021-12-24 | 歌尔股份有限公司 | Vibration exciter for electronic product and electronic product |
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