CN212433249U - AC/DC digital sensor - Google Patents
AC/DC digital sensor Download PDFInfo
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- CN212433249U CN212433249U CN202021008485.6U CN202021008485U CN212433249U CN 212433249 U CN212433249 U CN 212433249U CN 202021008485 U CN202021008485 U CN 202021008485U CN 212433249 U CN212433249 U CN 212433249U
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Abstract
The utility model relates to an alternating current-direct current digital sensor, including the foundatin plate, be provided with the current conducting plate on the foundatin plate, one side that the current conducting plate was kept away from to the foundatin plate is provided with first magnetism and inducts a piece, one side that the foundatin plate was kept away from to the current conducting plate is provided with second magnetism and inducts a piece, first magnetism and second magnetism and inducts a piece and all have magnetism and inducts line and jet into face and magnetism and inducts line and jet out the face, be provided with analog-to-digital conversion module, power module and communication module on the foundatin plate, power module and communication module all are connected with analog-to-digital conversion module electricity, first magnetism and second magnetism are induct. The utility model has the characteristics of easy to assemble and measure accurately.
Description
Technical Field
The utility model belongs to the technical field of the technique of sensor and specifically relates to an alternating current-direct current digital sensor is related to.
Background
At present, the smart grid and the transparent grid require research and development of a power system sensor which is more intelligent, smaller in size, more convenient to install and lower in price. The discovery of the magnetoresistance effect and the development of devices thereof provide a new technical means for measuring the current of the power system, and can greatly reduce the volume of the current sensor. The current sensor adopting the tunneling magneto-resistance (TMR) magnetic element has the advantages of high precision, small size, low power consumption and the like, and has good application prospect in the establishment of a ubiquitous power Internet of things comprehensive sensing system.
Conventionally, when measuring the magnitude of a current, a TMR device is generally placed in a magnetic field generated by the current to be measured, and the magnitude of the current is indirectly measured by a method of measuring the induction strength of the magnetic field. Due to the fact that external magnetic field interference exists, a shielding cover is arranged outside the TMR device, and therefore the external magnetic field interference is shielded.
The above prior art solutions have the following drawbacks: when carrying out the installation of TMR device, because the difference of application scene, the position of TMR device installation is very changeable to the appearance and the mounting means that lead to the shield cover will change along with the mounted position, probably need produce the shield cover that corresponds earlier and just can carry out the installation of TMR device, lead to the installation of TMR device comparatively inconvenient.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, one of the purposes of the utility model is to provide an alternating current-direct current digital sensor, have easy to assemble and measure accurate characteristics.
The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:
the utility model provides an alternating current-direct current digital sensor, includes the foundatin plate, be provided with the current conducting plate on the foundatin plate, one side that the current conducting plate was kept away from to the foundatin plate is provided with first magnetism and inducts the piece, one side that the foundatin plate was kept away from to the current conducting plate is provided with second magnetism and inducts the piece, first magnetism and second magnetism are inducted the piece and all have magnetism and are inducted line and penetrate the face and the magnetism and induct line and go out the face, be provided with analog-to-digital conversion module, power module and communication module on the foundatin plate, power module and communication module all are connected with analog-to-digital conversion module electricity, first magnetism.
By adopting the technical scheme, current flows from one end of the current conducting plate to the other end, magnetic induction lines in a magnetic field generated by the current are injected from the magnetic induction line injection surfaces of the first magnetic induction piece and the second magnetic induction piece and then are injected from the magnetic induction line injection surfaces of the first magnetic induction piece and the second magnetic induction piece, so that the first magnetic induction piece and the second magnetic induction piece can generate voltage signals, the voltage signals are transmitted to the analog-to-digital conversion module, the analog-to-digital conversion module transmits the digital signals to the communication module, the output of the signals is realized, the power supply module supplies power to the analog-to-digital conversion module, and the base plate and the current conducting plate can be made thinner, so that the sensor is smaller in size and convenient to install; simultaneously, the first magnetic induction piece and the second magnetic induction piece are arranged on two sides of the current-conducting plate, so that external interference is eliminated, and the acquired data are accurate.
The present invention may be further configured in a preferred embodiment as: the second magnetic induction piece is arranged on one side, far away from the base plate, of the conducting plate through the insulating plate.
Through adopting above-mentioned technical scheme for first magnetic induction spare and second magnetic induction spare are located the both sides of current conducting plate, and the insulation board makes second magnetic induction spare not communicate with the current conducting plate, can pass through the distance between insulation board thickness control second magnetic induction spare and the current conducting plate simultaneously, makes the data that obtain more accurate.
The present invention may be further configured in a preferred embodiment as: the through hole has been seted up on the current conducting plate, fixedly connected with installation pipe on the foundatin plate, the installation pipe is worn to establish in the through hole, the inner wall of through hole and the outer wall fixed connection of installation pipe, threaded connection has fixing bolt on the installation pipe, the both sides of insulation board are contradicted with installation pipe and fixing bolt's head respectively.
Through adopting above-mentioned technical scheme, the setting up of installation pipe makes the stability more of the relation of connection between foundatin plate, current conducting plate and the insulation board three, and the great change is difficult for taking place in three's position, and fixing bolt makes the position of insulation board comparatively stable to make the acquisition of data more accurate.
The present invention may be further configured in a preferred embodiment as: and the two ends of the current-conducting plate are fixedly connected with wiring terminals.
Through adopting above-mentioned technical scheme, through setting up binding post, when being connected to the current conducting plate with the wire on, binding post can make the connection between wire and the current conducting plate more stable, also makes things convenient for on the wire is connected to the current conducting plate for it is comparatively convenient to measure.
The present invention may be further configured in a preferred embodiment as: the current conducting plate is located the middle part of installation pipe, the distance between current conducting plate and the foundatin plate equals the distance between current conducting plate and the insulation board.
By adopting the technical scheme, the distance between the first magnetic induction piece and the second magnetic induction piece and the distance between the current-conducting plates are equal due to the distance determination, so that the accuracy of the acquired data is improved.
The present invention may be further configured in a preferred embodiment as: first magnetism induction piece and second magnetism induction piece are the symmetric state with the plane of current conducting plate place, first magnetism induction piece length direction's extension line is parallel to each other with second magnetism induction piece length direction's extension line.
Through adopting above-mentioned technical scheme, first magnetic induction spare and second magnetic induction spare are the symmetric state, and the extension line direction is parallel to each other again to guaranteed that first magnetic induction spare and second magnetic induction spare are in a complete mutual corresponding relation, thereby made the data of acquireing more accurate.
The present invention may be further configured in a preferred embodiment as: the conducting plate is made of copper, and the base plate and the insulating plate are made of non-magnetic sensitive or non-antimagnetic materials.
Through adopting above-mentioned technical scheme, the copper has better electric conductive property to produce great electric current easily, make magnetic field intensity also great, the first magnetic induction piece of being convenient for and second magnetic induction piece carry out the acquisition of signal, foundatin plate and insulation board adopt non-magnetism sensitive or non-antimagnetic material to make, make the electric current on the current conducting plate be difficult for producing the influence to the signal of first magnetic induction piece and second magnetic induction piece output.
To sum up, the utility model discloses a following at least one useful technological effect:
1. through setting up first magnetic induction spare and second magnetic induction spare in the both sides of current conducting plate for first magnetic induction spare and second magnetic induction spare can carry out better detection to the magnetic field that the electric current produced that flows through on the current conducting plate, and the space that the current conducting plate occupied simultaneously is less, also conveniently installs the sensor.
Drawings
Fig. 1 is a schematic structural diagram of a base board and a power supply module.
Fig. 2 is a schematic sectional view of the installation pipe and the base plate.
In the figure, 1, a base plate; 2. installing a pipe; 3. a conductive plate; 31. a through hole; 32. a wiring terminal; 4. an insulating plate; 5. fixing the bolt; 6. a first magnetic induction member; 7. a second magnetic induction member; 8. a modulus conversion module; 9. a power supply module; 10. and a communication module.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1 and 2, for the utility model discloses an alternating current-direct current digital sensor, including foundatin plate 1, foundatin plate 1 adopts plastics to make, and two installation pipes 2 of fixedly connected with on the foundatin plate 1, the axle center of installation pipe 2 is in on the same straight line. Be provided with current conducting plate 3 on foundatin plate 1, current conducting plate 3 adopts the copper to make, has seted up through hole 31 on the current conducting plate 3, and installation pipe 2 wears to establish in through hole 31 and the outer wall of installation pipe 2 and the inner wall fixed connection of through hole 31, and current conducting plate 3 is located the middle part of installation pipe 2. The side of the conducting plate 3 far away from the base plate 1 is provided with an insulating plate 4, and the insulating plate 4 is made of non-magnetic sensitive or non-magnetic resistant materials, such as PC or ABS. The insulation board 4 is provided with a fixing bolt 5 in a penetrating mode, the fixing bolt 5 is in threaded connection with the inner wall of the installation pipe 2, and the two sides of the insulation board 4 are respectively abutted to the end portion of the installation pipe 2 and the head portion of the fixing bolt 5. The distance between the insulating plate 4 and the conductive plate 3 is equal to the distance between the base plate 1 and the conductive plate 3. The conductive plate 3 has connection terminals 32 screwed to both ends thereof, and the connection terminals 32 are screws.
One side welding that conducting plate 3 was kept away from to foundatin plate 1 has first magnetism to be induced 6, and first magnetism is induced 6 and is the TMR chip, and one side welding that conducting plate 3 was kept away from to insulation board 4 has second magnetism to be induced 7, and second magnetism is induced 7 and is the TMR chip, and first magnetism is induced 6 and second magnetism is induced 7 and all has magnetism and is induced the line and penetrate the face and the magnetism is induced the line and penetrates the face. First magnetic induction piece 6 and second magnetic induction piece 7 are the symmetric state with the plane at conductive plate 3 place, and the extension line of first magnetic induction piece 6 length direction is parallel to each other with the extension line of second magnetic induction piece 7 length direction. An analog-digital conversion module 8 is welded on the foundation plate 1, and the analog-digital conversion module 8 is an analog-digital chip. The welding has power module 9 on the foundatin plate 1, and power module 9 is the module, and power module 9 is connected with the module of module to module 8 electricity. The base plate 1 is welded with a communication module 10, the communication module 10 can be a wireless communication module 10 or a communication port, and the communication module 10 is electrically connected with the analog-to-digital conversion module 8.
The implementation principle of the embodiment is as follows: when the current needs to be detected, the wire is wound on the wiring terminal 32, and then the wiring terminal 32 is screwed down, so that the wiring terminal 32 drives the wire to abut against the conductive plate 3. When the power is on, a current generates a magnetic field, magnetic induction lines of the magnetic field are incident from a magnetic induction line incident surface of the first magnetic induction piece 6, then are emitted from a magnetic induction line emergent surface of the first magnetic induction piece 6, then are incident from a magnetic induction line incident surface of the second magnetic induction piece 7, and then are emitted from a magnetic induction line emergent surface of the second magnetic induction piece 7 to form a ring, voltage signals generated by the first magnetic induction piece 6 and the second magnetic induction piece 7 are transmitted to the analog-to-digital conversion module 8, the analog-to-digital conversion module 8 converts analog quantity into digital quantity and outputs the digital quantity through the communication module 10, and therefore the current magnitude is determined through output digital signals.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (7)
1. An alternating current-direct current digital sensor is characterized in that: including foundatin plate (1), be provided with current conducting plate (3) on foundatin plate (1), one side that current conducting plate (3) were kept away from in foundatin plate (1) is provided with first magnetism and inducts a (6), one side that current conducting plate (3) were kept away from in foundatin plate (1) is provided with second magnetism and inducts a (7), first magnetism is inducted a (6) and second magnetism and is inducted a (7) and all have magnetism and is inducted line and penetrate face and magnetism and inducted line and penetrate the face, be provided with modulus conversion module (8), power module (9) and communication module (10) on foundatin plate (1), power module (9) and communication module (10) all are connected with modulus conversion module (8) electricity, first magnetism is inducted a (6) and second magnetism and is inducted a (7) and all is connected with modulus conversion module (8) electricity.
2. The ac-dc digital sensor of claim 1, wherein: and the second magnetic induction piece (7) is arranged on one side of the conducting plate (3) far away from the foundation plate (1) through the insulating plate (4).
3. The ac-dc digital sensor of claim 2, wherein: through hole (31) have been seted up on current conducting plate (3), fixedly connected with installation pipe (2) are gone up in foundatin plate (1), install in pipe (2) wear to establish in through hole (31), the inner wall of through hole (31) and the outer wall fixed connection of installation pipe (2), threaded connection has fixing bolt (5) on installation pipe (2), the both sides of insulation board (4) are contradicted with the head of installation pipe (2) and fixing bolt (5) respectively.
4. The ac-dc digital sensor of claim 1, wherein: and the two ends of the conductive plate (3) are fixedly connected with wiring terminals (32).
5. The ac-dc digital sensor of claim 2, wherein: the current conducting plate (3) is located in the middle of the installation pipe (2), and the distance between the current conducting plate (3) and the foundation plate (1) is equal to the distance between the current conducting plate (3) and the insulating plate (4).
6. The ac-dc digital sensor of claim 1, wherein: first magnetism induction piece (6) and second magnetism induction piece (7) are the symmetric state with current conducting plate (3) place plane, first magnetism induction piece (6) length direction's extension line is parallel to each other with second magnetism induction piece (7) length direction's extension line.
7. The ac-dc digital sensor of claim 2, wherein: the current conducting plate (3) is made of copper, and the foundation plate (1) and the insulating plate (4) are made of non-magnetic sensitive or non-antimagnetic materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021008485.6U CN212433249U (en) | 2020-06-04 | 2020-06-04 | AC/DC digital sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021008485.6U CN212433249U (en) | 2020-06-04 | 2020-06-04 | AC/DC digital sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212433249U true CN212433249U (en) | 2021-01-29 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021008485.6U Active CN212433249U (en) | 2020-06-04 | 2020-06-04 | AC/DC digital sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212433249U (en) |
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2020
- 2020-06-04 CN CN202021008485.6U patent/CN212433249U/en active Active
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