CN221726121U - AC/DC shared voltage sensor - Google Patents
AC/DC shared voltage sensor Download PDFInfo
- Publication number
- CN221726121U CN221726121U CN202420224743.6U CN202420224743U CN221726121U CN 221726121 U CN221726121 U CN 221726121U CN 202420224743 U CN202420224743 U CN 202420224743U CN 221726121 U CN221726121 U CN 221726121U
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- voltage
- insulator
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- electrically connected
- plug
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- 239000012212 insulator Substances 0.000 claims abstract description 34
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 12
- 229910052802 copper Inorganic materials 0.000 claims description 11
- 239000010949 copper Substances 0.000 claims description 11
- 238000005070 sampling Methods 0.000 abstract description 4
- 230000008054 signal transmission Effects 0.000 abstract description 4
- 238000005259 measurement Methods 0.000 description 4
- 230000003137 locomotive effect Effects 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 206010063385 Intellectualisation Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000006855 networking Effects 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
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- Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
Abstract
The utility model discloses an AC/DC common voltage sensor, comprising: the insulator is arranged on the upper surface of the base; the connecting piece is arranged at the top end of the insulator; the high-voltage resistors are arranged in the insulator and are electrically connected with the connecting piece; the aviation plug is arranged on the inner top surface of the base and is electrically connected with the high-voltage resistor; the voltage signal processor is arranged inside the base and is electrically connected with the aviation plug; the connecting plug is arranged on the outer side of the base and is electrically connected with the voltage signal processor. According to the scheme, the high-voltage resistor is utilized for sampling by the double-resistor voltage dividing principle, and the voltage signal processor is used for converting the high-voltage resistor into a current signal, so that the anti-interference capability is improved, and the problem of small-voltage signal transmission is solved.
Description
Technical Field
The utility model relates to the technical field of voltage sensors, in particular to an alternating current-direct current common voltage sensor.
Background
During operation of the locomotive, the traction converter is an important control device in a traction control system, and various voltage information is one of basic information which the control system must acquire. The output signal of the current locomotive voltage sensor is easy to be interfered, and the measurement accuracy is not ideal.
Disclosure of utility model
The utility model provides an AC/DC shared voltage sensor, which utilizes a double-resistor voltage division principle to sample by utilizing a high-voltage resistor, and converts the high-voltage resistor into a current signal by a voltage signal processor, so that the anti-interference capability is improved, and the problem of small voltage signal transmission is solved.
In order to solve the technical problems, the technical scheme of the utility model is as follows:
The utility model provides an AC/DC shared voltage sensor, comprising:
The insulator is arranged on the upper surface of the base;
The connecting piece is arranged at the top end of the insulator;
the high-voltage resistors are arranged in the insulator and are electrically connected with the connecting piece;
the aviation plug is arranged on the inner top surface of the base and is electrically connected with the high-voltage resistor;
the voltage signal processor is arranged inside the base and is electrically connected with the aviation plug;
the connecting plug is arranged on the outer side of the base and is electrically connected with the voltage signal processor.
Optionally, the voltage signal processor includes:
the first voltage comparator is electrically connected with the aviation plug;
And the second voltage comparator is electrically connected with the first voltage comparator.
Optionally, the connection plug includes:
The power supply plug is electrically connected with the first voltage comparator and the second voltage comparator;
And the output plug is electrically connected with the first voltage comparator and the second voltage comparator.
Optionally, the voltage sensor further includes:
And the insulating core is arranged in the cavity in the insulator, and the two high-voltage resistors are embedded in the insulating core.
Optionally, the connector includes:
The high-voltage connecting copper piece is embedded in the insulator and is positioned above the cavity;
the upper end of the stud penetrates out of the upper end face of the insulator;
The conductive inserts are embedded in the inner top surface of the cavity, two conductive inserts are arranged, the upper ends of the two conductive inserts are abutted to the high-voltage connection copper pieces, and the bottom ends of the two conductive inserts are respectively abutted to the two high-voltage resistors.
Optionally, the voltage sensor further includes:
The connecting inserts are embedded in the bottom surface of the insulator, are provided with a plurality of connecting inserts, and are uniformly distributed circumferentially by taking the axis of the cavity as a reference;
The connecting bolt is arranged inside the base, and the threaded end of the connecting bolt penetrates through the connecting through hole on the surface of the base to be in threaded connection with the connecting insert.
Optionally, the voltage sensor further includes:
and the sealing gasket is arranged between the insulator and the base.
Optionally, the base includes:
The bottom of the shell is of an opening structure;
the bottom plate is arranged in the opening structure at the bottom of the shell;
The connecting folded edge is formed at the edge part of the bottom plate, the connecting folded edge is attached to the inner wall of the shell, and the connecting folded edge is connected with the shell through screws.
Optionally, the shell bottom edge shaping has the mounting panel, the mounting panel is provided with two at least, and the symmetry sets up the shell side, the mounting panel surface evenly is provided with the through-hole.
The scheme of the utility model at least comprises the following beneficial effects:
According to the scheme, the high-voltage resistor is used for sampling according to the principle of double-resistor voltage division, and the voltage signal processor is used for converting the high-voltage resistor into a current signal, so that the anti-interference capability is improved, and the problem of small-voltage signal transmission is solved.
Drawings
Fig. 1 is a front cross-sectional view of an ac/dc common voltage sensor according to an embodiment of the present utility model;
FIG. 2 is an enlarged schematic view of portion A of FIG. 1;
FIG. 3 is an enlarged schematic view of portion B of FIG. 1;
FIG. 4 is an enlarged schematic view of portion C of FIG. 1;
Fig. 5 is a schematic perspective view of an ac/dc common voltage sensor according to an embodiment of the present utility model.
The reference numerals are explained as follows:
1. An insulator; 101. a cavity; 2. a high voltage resistor; 3. an insulating core; 4. aviation plug; 5. a voltage signal processor; 6. a base; 601. a connecting through hole; 602. a housing; 603. a bottom plate; 604. connecting and folding edges; 605. a mounting plate; 7. a connecting insert; 8. a connecting bolt; 9. a sealing gasket; 10. a stud; 11. high-voltage connecting copper parts; 12. a conductive insert; 13. an output plug; 14. and a power supply plug.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
As shown in fig. 1 to 5, the present utility model provides an ac/dc common voltage sensor, comprising:
The insulator 1 is arranged on the upper surface of the base 6;
The connecting piece is arranged at the top end of the insulator 1;
The high-voltage resistors 2 are arranged in the insulator 1, and the high-voltage resistors 2 are electrically connected with the connecting piece;
the aviation plug 4 is arranged on the inner top surface of the base 6, and the aviation plug 4 is electrically connected with the high-voltage resistor 2;
The voltage signal processor 5 is arranged in the base 6, and the voltage signal processor 5 is electrically connected with the aviation plug 4;
and the connecting plug is arranged outside the base 6 and is electrically connected with the voltage signal processor 5.
In the embodiment, the connection of the high-voltage end is realized through the connecting piece, the connection plug is used for connecting with secondary equipment through the A/D converter, the small signal output does not need secondary conversion, and the requirements of the development of digitization, intellectualization and networking in various fields of electric power industry such as control and protection of electric equipment of a power grid, maintenance of state, electric energy metering and electric energy quality monitoring are met;
The two high-voltage resistors 2 are utilized, sampling is carried out through the voltage division and the distance between the two resistors, and the voltage signal processor 5 converts the voltage signals into current signals, so that the anti-interference capability can be improved, and the problem of small voltage signal transmission is solved;
The whole volume is small, the weight is light, the occupied space is small, the wiring is simple, the electromagnetic type sensor can be directly replaced, the cost performance is high, the measurement accuracy is high, and the sensor can be used for measurement and protection.
In an alternative embodiment of the utility model, the voltage signal processor 5 comprises:
the first voltage comparator is electrically connected with the aviation plug 4;
The second voltage comparator is electrically connected with the first voltage comparator.
In the embodiment, the first voltage comparator adopts the voltage comparison module, the second voltage comparator adopts the voltage judgment module, and the sampled voltage signal is converted into the current signal through the cooperation of the first voltage comparator and the second voltage comparator, so that the anti-interference capability is improved, and the measurement accuracy is ensured.
As shown in fig. 5, in an alternative embodiment of the present utility model, a connection plug includes:
The power supply plug 14, the power supply plug 14 is connected with the first voltage comparator and the second voltage comparator electrically;
and the output plug 13 is electrically connected with the first voltage comparator and the second voltage comparator.
In this embodiment, the power supply plug 14 is used to supply power to the first voltage comparator and the second voltage comparator, and the output plug 13 is used to electrically connect with the a/D converter, so as to access the secondary device, and realize the normal operation of the voltage sensor.
In an alternative embodiment of the present utility model, as shown in fig. 1, the voltage sensor further includes:
an insulating core 3 provided inside the cavity 101 inside the insulator 1, and two high-voltage resistors 2 embedded inside the insulating core 3.
In this embodiment, the insulator 1 is made of epoxy resin, the insulating core 3 is made of polyurethane, the high-voltage resistor 2 is embedded in the insulating core 3, the insulating core 3 is arranged in the cavity 101 of the insulator 1, the overall insulating effect can be improved, meanwhile, the stability of the high-voltage resistor 2 in the insulator 1 is ensured, and normal operation is ensured.
As shown in fig. 3, in an alternative embodiment of the present utility model, a connector includes:
The high-voltage connecting copper piece 11 is embedded in the insulator 1, and the high-voltage connecting copper piece 11 is positioned above the cavity 101;
The stud 10 is connected with the high-voltage connecting copper piece 11, and the upper end of the stud 10 penetrates out of the upper end face of the insulator 1;
The conductive inserts 12 are embedded in the inner top surface of the cavity 101, two conductive inserts 12 are arranged, the upper ends of the two conductive inserts 12 are abutted with the high-voltage connecting copper piece 11, and the bottom ends of the two conductive inserts 12 are respectively abutted with the two high-voltage resistors 2.
In this embodiment, the stud 10 is convenient to connect the high voltage end to be detected, and the conductive insert 12 and the high voltage connecting copper piece 11 are used to realize the electrical connection between the two high voltage resistors 2 and the stud 10, so that the electrical connection is accurate and stable, and the accurate sampling of the high voltage resistors 2 can be ensured.
In an alternative embodiment of the present utility model, as shown in fig. 2, the voltage sensor further includes:
the connecting inserts 7 are embedded in the bottom surface of the insulator 1, a plurality of connecting inserts 7 are arranged, and the connecting inserts are uniformly distributed on the circumference with the axis of the cavity 101 as a reference;
The connecting bolt 8 is arranged inside the base 6, and the threaded end of the connecting bolt 8 penetrates through a connecting through hole 601 on the surface of the base 6 to be in threaded connection with the connecting insert 7.
In this embodiment, the detachable connection of the insulator 1 and the base 6 is realized through the connecting bolt 8 and the connecting insert 7, so that the electric connection of the high-voltage resistor 2 and the aviation plug 4 is conveniently realized by using the electric wire, and meanwhile, the connection stability of the insulator 1 and the base 6 is ensured.
In an alternative embodiment of the present utility model, as shown in fig. 2, the voltage sensor further includes:
and a gasket 9 provided between the insulator 1 and the base 6.
In this embodiment, by providing the gasket 9, the sealing performance between the insulator 1 and the base 6 can be ensured, and the safety of the high-voltage resistor 2 can be ensured.
As shown in fig. 1 and 4, in an alternative embodiment of the present utility model, the base 6 includes:
The shell 602, the bottom of the shell 602 is of an opening structure;
a bottom plate 603 disposed inside the opening structure at the bottom of the housing 602;
The connection flange 604 is formed at the edge of the bottom plate 603, the connection flange 604 is attached to the inner wall of the housing 602, and the connection flange 604 is connected with the housing 602 by screws.
In this embodiment, the base plate 603 is a polyurethane casting body, and the base 6 is formed by connecting the shell 602 and the base plate 603, so that the arrangement and installation of the voltage signal processor 5 are facilitated, and the later detection and maintenance are facilitated.
In an alternative embodiment of the present utility model, as shown in fig. 5, a mounting plate 605 is formed at the bottom edge of the housing 602, at least two mounting plates 605 are provided, and symmetrically disposed on the side of the housing 602, and through holes are uniformly formed on the surface of the mounting plate 605.
In this embodiment, the attachment of the base 6 to the locomotive is facilitated by mounting plate 605.
While the foregoing is directed to the preferred embodiments of the present utility model, it will be appreciated by those skilled in the art that various modifications and adaptations can be made without departing from the principles of the present utility model, and such modifications and adaptations are intended to be comprehended within the scope of the present utility model.
Claims (9)
1. An ac/dc shared voltage sensor, characterized in that: comprising the following steps:
the insulator (1) is arranged on the upper surface of the base (6);
The connecting piece is arranged at the top end of the insulator (1);
The high-voltage resistors (2) are arranged in the insulator (1), and the high-voltage resistors (2) are electrically connected with the connecting piece;
The aviation plug (4) is arranged on the inner top surface of the base (6), and the aviation plug (4) is electrically connected with the high-voltage resistor (2);
The voltage signal processor (5) is arranged inside the base (6), and the voltage signal processor (5) is electrically connected with the aviation plug (4);
The connecting plug is arranged outside the base (6) and is electrically connected with the voltage signal processor (5).
2. An ac/dc common voltage sensor according to claim 1, characterized in that the voltage signal processor (5) comprises:
A first voltage comparator electrically connected to the aerial plug (4);
And the second voltage comparator is electrically connected with the first voltage comparator.
3. An ac/dc common voltage sensor according to claim 2, wherein said connection plug comprises:
a power supply plug (14), the power supply plug (14) being electrically connected with the first voltage comparator and the second voltage comparator;
and the output plug (13) is electrically connected with the first voltage comparator and the second voltage comparator.
4. An ac/dc common voltage sensor according to claim 1, further comprising:
And the insulating core (3) is arranged in the cavity (101) in the insulator (1), and the two high-voltage resistors (2) are embedded in the insulating core (3).
5. The ac/dc common voltage sensor according to claim 4, wherein the connection member comprises:
A high-voltage connection copper piece (11) embedded inside the insulator (1), wherein the high-voltage connection copper piece (11) is positioned above the cavity (101);
The stud (10) is connected with the high-voltage connection copper piece (11), and the upper end of the stud (10) penetrates out of the upper end face of the insulator (1);
The conductive inserts (12) are embedded in the inner top surface of the cavity (101), the conductive inserts (12) are arranged in two, the upper ends of the conductive inserts (12) are abutted with the high-voltage connection copper pieces (11), and the bottom ends of the conductive inserts (12) are respectively abutted with the two high-voltage resistors (2).
6. The ac/dc common voltage sensor according to claim 4, further comprising:
The connecting inserts (7) are embedded in the bottom surface of the insulator (1), and the connecting inserts (7) are provided with a plurality of connecting inserts and are uniformly distributed circumferentially by taking the axis of the cavity (101) as a reference;
The connecting bolt (8) is arranged inside the base (6), and the threaded end of the connecting bolt (8) penetrates through a connecting through hole (601) on the surface of the base (6) to be in threaded connection with the connecting insert (7).
7. The ac/dc common voltage sensor according to claim 6, further comprising:
and a gasket (9) provided between the insulator (1) and the base (6).
8. An ac/dc common voltage sensor according to claim 1, characterized in that the base (6) comprises:
The shell (602), the bottom of the shell (602) is of an opening structure;
a bottom plate (603) arranged inside the opening structure at the bottom of the shell (602);
The connecting folded edge (604) is formed at the edge part of the bottom plate (603), the connecting folded edge (604) is attached to the inner wall of the shell (602), and the connecting folded edge (604) is connected with the shell (602) through screws.
9. The ac/dc common voltage sensor according to claim 8, wherein the bottom edge of the housing (602) is formed with a mounting plate (605), the mounting plate (605) is at least provided with two pieces, and symmetrically arranged on the side of the housing (602), and the surface of the mounting plate (605) is uniformly provided with through holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420224743.6U CN221726121U (en) | 2024-01-30 | 2024-01-30 | AC/DC shared voltage sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420224743.6U CN221726121U (en) | 2024-01-30 | 2024-01-30 | AC/DC shared voltage sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221726121U true CN221726121U (en) | 2024-09-17 |
Family
ID=92677961
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202420224743.6U Active CN221726121U (en) | 2024-01-30 | 2024-01-30 | AC/DC shared voltage sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221726121U (en) |
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2024
- 2024-01-30 CN CN202420224743.6U patent/CN221726121U/en active Active
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