CN213635681U - Single-phase current transformer - Google Patents
Single-phase current transformer Download PDFInfo
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- CN213635681U CN213635681U CN202023274838.XU CN202023274838U CN213635681U CN 213635681 U CN213635681 U CN 213635681U CN 202023274838 U CN202023274838 U CN 202023274838U CN 213635681 U CN213635681 U CN 213635681U
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Abstract
The utility model relates to a single-phase current transformer, including the casing, be provided with first baffle, second baffle and third baffle in the inner chamber of casing to separate into first cavity, second cavity and third cavity with the inner chamber of casing, seted up first intercommunication sleeve pipe and second intercommunication sleeve pipe in first cavity and the second cavity respectively, the cover is equipped with primary on the first intercommunication sleeve pipe, seted up a breach on the third baffle, through the first cavity of breach and the setting of third cavity intercommunication mutually, be provided with the apron on the casing, be provided with mutual inductive circuit board on the inboard of apron, be provided with on the mutual inductive circuit board with primary complex secondary, be provided with wireless module on the mutual inductive circuit board, be provided with the power post on the apron, the power post passes the apron and pegs graft mutually with mutual inductive circuit board. The utility model discloses can reduce the wiring, reach reduce cost's purpose.
Description
Technical Field
The utility model relates to a single-phase current transformer.
Background
The current transformer is an instrument for measuring by converting a large primary side current into a small secondary side current according to the electromagnetic induction principle. The current transformer is composed of a closed iron core and a winding. The primary side winding of the transformer has few turns and is connected in a circuit of the current to be measured.
Therefore, all current of a line always flows through the current transformer, the number of turns of the secondary side winding is large, the secondary side winding is connected in series in the measuring instrument and the protection loop, and the secondary side loop of the current transformer is always closed when the current transformer works, so that the impedance of the series coil of the measuring instrument and the protection loop is small, and the working state of the current transformer is close to a short circuit. The current transformer converts a large current on the primary side into a small current on the secondary side for measurement, and the secondary side can not be opened.
However, the current transformer is only sleeved in an electric wire and then connected with an external device to obtain some data, which is inconvenient, and the installation mode is simple and quick installation is not used.
In view of the above-mentioned drawbacks, the present designer actively makes research and innovation to create a single-phase current transformer with a novel structure, so that the single-phase current transformer has more industrial utility value.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model aims at providing a single-phase current transformer.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a single-phase current transformer comprises a shell, wherein the shell is of a cuboid structure, a first partition plate, a second partition plate and a third partition plate are arranged in an inner cavity of the shell, the inner cavity of the shell is divided into a first cavity, a second cavity and a third cavity by the first partition plate, the first cavity and the second cavity are respectively internally provided with a first communicating sleeve and a second communicating sleeve, the first communicating sleeve is sleeved with a primary winding, the third partition plate is provided with a notch, the first cavity and the third cavity are communicated through the notch, the shell is provided with a cover plate, the inner side of the cover plate is provided with a mutual inductance circuit board, the mutual inductance circuit board is provided with a secondary winding matched with the primary winding, the secondary winding is positioned above the notch and vertically corresponds to the primary winding, and the mutual inductance circuit board is provided with a wireless module, data are transmitted to the outer end receiving device through the wireless module, the cover plate is provided with a first through hole and a second through hole, the first through hole and the second through hole correspond to the first communicating sleeve and the second communicating sleeve one to one, the cover plate is provided with power posts, and the power posts penetrate through the cover plate to be connected with the mutual inductance circuit board in an inserting mode.
Preferably, the wireless module is bluetooth.
Preferably, the single-phase current transformer is provided with a fixing stud in the casing, and the cover plate is arranged on the casing through a screw and the fixing stud.
Preferably, a sealing ring is arranged between the first through hole and the second through hole and between the corresponding first communication sleeve and the corresponding second communication sleeve.
Preferably, in the single-phase current transformer, the power supply column has a Y-shaped structure.
Preferably, the single-phase current transformer is provided with a display on the casing.
Borrow by above-mentioned scheme, the utility model discloses at least, have following advantage:
the utility model discloses a with secondary winding installation and mutual inductance circuit board on, can carry out wireless transmission with data through installation wireless module on mutual inductance circuit board, reduce the wiring, make its operation simpler and convenient, can also reduce cost simultaneously to can know the concrete information of knowing the electric current through wireless transmission, improve the security.
The above description is only an overview of the technical solution of the present invention, and in order to make the technical means of the present invention clearer and can be implemented according to the content of the description, the following detailed description is made with reference to the preferred embodiments of the present invention and accompanying drawings.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
In order to make the technical solution of the present invention better understood, the technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiment of the present invention, all other embodiments obtained by the person skilled in the art without creative work belong to the protection scope of the present invention.
Examples
As shown in fig. 1, a single-phase current transformer includes a casing 1, the casing 1 is a rectangular parallelepiped structure, a first partition board 2, a second partition board 3 and a third partition board 4 are disposed in an inner cavity of the casing 1, the first partition board 2, the second partition board 3 and the third partition board 4 separate the inner cavity of the casing 1 into a first cavity 5, a second cavity 6 and a third cavity 17, the first cavity 5 and the second cavity 6 are respectively provided with a first communicating sleeve 7 and a second communicating sleeve 8, the first communicating sleeve 7 is sleeved with a primary winding 9, the third partition board 4 is provided with a gap 10, the first cavity 5 and the third cavity 17 are communicated through the gap 10, the casing 1 is provided with a cover plate 11, an inner side of the cover plate 11 is provided with a mutual inductance circuit board 12, the mutual inductance circuit board 12 is provided with a secondary winding matched with the primary winding 9, the secondary winding is located above the gap 10 and vertically corresponds to the primary winding 9, the mutual inductance circuit board 12 is provided with a wireless module 13, data are transmitted to an outer end receiving device through the wireless module 13, the cover plate 11 is provided with a first through hole 14 and a second through hole 15, the first through hole 14 and the second through hole 15 correspond to the first communicating sleeve 7 and the second communicating sleeve 8 one by one, the cover plate 11 is provided with a power column 16, and the power column 16 penetrates through the cover plate 11 to be connected with the mutual inductance circuit board 12 in an inserting mode.
The utility model discloses in wireless module 13 is the bluetooth.
The utility model discloses in be provided with fixing stud in the casing 1, apron 11 sets up on casing 1 through screw and fixing stud.
The utility model discloses in be provided with the sealing washer between first through-hole 14 and second through-hole 15 and the first intercommunication sleeve pipe 7 and the second intercommunication sleeve pipe 8 that correspond.
The utility model discloses in power post 16 is Y type structure, makes it conveniently peg graft on the power cord, easy to assemble.
The utility model discloses in be provided with the display on the casing 1, operating personnel can in time see data.
The utility model discloses an operating principle is unanimous with known current transformer's principle, and wherein the live wire passes the first intercommunication sleeve pipe that the cover was equipped with primary winding, and the zero line passes second intercommunication sleeve pipe, can realize detecting operating current like this, and the mode that detects is the technique that technical personnel in the field know, does not do any repeated description on this side, and the utility model discloses on transmitting the data of gathering to the watch-dog in same install bin through wireless module on the mutual inductance circuit board, make it can carry out quick transmission with data, ensure the accuracy of data, can also reduce the wiring simultaneously, can reach reduce cost reduction's purpose.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (6)
1. A single-phase current transformer, characterized in that: comprises a shell (1), the shell (1) is of a cuboid structure, a first clapboard (2), a second clapboard (3) and a third clapboard (4) are arranged in an inner cavity of the shell (1), the first clapboard (2), the second clapboard (3) and the third clapboard (4) separate the inner cavity of the shell (1) into a first cavity (5), a second cavity (6) and a third cavity (17), a first communicating sleeve (7) and a second communicating sleeve (8) are respectively arranged in the first cavity (5) and the second cavity (6), a primary winding (9) is sleeved on the first communicating sleeve (7), a notch (10) is arranged on the third clapboard (4), the first cavity (5) and the third cavity (17) are communicated through the notch (10), a cover plate (11) is arranged on the shell (1), a circuit board (12) is arranged on the inner side of the cover plate (11), be provided with on mutual inductance circuit board (12) with primary winding (9) complex secondary winding, secondary winding is located the top of breach (10) and is upper and lower correspondence with primary winding (9), be provided with wireless module (13) on mutual inductance circuit board (12), through wireless module (13) with data transmission to outer end receiving arrangement, first through-hole (14) and second through-hole (15) have been seted up on apron (11), first through-hole (14) and second through-hole (15) and first intercommunication sleeve pipe (7) and second intercommunication sleeve pipe (8) are corresponding one to one mutually, be provided with power post (16) on apron (11), power post (16) pass apron (11) and peg graft mutually with mutual inductance circuit board (12).
2. A single-phase current transformer according to claim 1, wherein: the wireless module (13) is Bluetooth.
3. A single-phase current transformer according to claim 1, wherein: the shell (1) is internally provided with a fixing stud, and the cover plate (11) is arranged on the shell (1) through a screw and the fixing stud.
4. A single-phase current transformer according to claim 1, wherein: and sealing rings are arranged between the first through hole (14) and the second through hole (15) and the corresponding first communicating sleeve (7) and the second communicating sleeve (8).
5. A single-phase current transformer according to claim 1, wherein: the power supply column (16) is of a Y-shaped structure.
6. A single-phase current transformer according to claim 1, wherein: a display is arranged on the shell (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023274838.XU CN213635681U (en) | 2020-12-28 | 2020-12-28 | Single-phase current transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023274838.XU CN213635681U (en) | 2020-12-28 | 2020-12-28 | Single-phase current transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213635681U true CN213635681U (en) | 2021-07-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023274838.XU Active CN213635681U (en) | 2020-12-28 | 2020-12-28 | Single-phase current transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213635681U (en) |
-
2020
- 2020-12-28 CN CN202023274838.XU patent/CN213635681U/en active Active
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