CN219979317U - Magnetic field fine adjustment device of high-power circulator, shell and circulator comprising magnetic field fine adjustment device - Google Patents
Magnetic field fine adjustment device of high-power circulator, shell and circulator comprising magnetic field fine adjustment device Download PDFInfo
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- CN219979317U CN219979317U CN202321592542.3U CN202321592542U CN219979317U CN 219979317 U CN219979317 U CN 219979317U CN 202321592542 U CN202321592542 U CN 202321592542U CN 219979317 U CN219979317 U CN 219979317U
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- 238000004804 winding Methods 0.000 claims abstract description 64
- 230000003313 weakening effect Effects 0.000 claims abstract description 26
- 238000009966 trimming Methods 0.000 claims description 14
- 238000003466 welding Methods 0.000 claims description 9
- 230000002708 enhancing effect Effects 0.000 claims description 3
- 230000005672 electromagnetic field Effects 0.000 abstract description 6
- 238000005728 strengthening Methods 0.000 abstract 2
- 239000004020 conductor Substances 0.000 description 5
- 239000002184 metal Substances 0.000 description 3
- 238000000605 extraction Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Abstract
The utility model discloses a magnetic field fine adjustment device of a high-power circulator, a shell and the circulator comprising the same, which comprises the following components: the magnetic field-weakening device comprises a round magnet and a coil assembly, wherein a round through hole is formed in the coil assembly, the round magnet is fixedly arranged in the round through hole, the coil assembly comprises a magnetic field-strengthening winding and a magnetic field-weakening winding, the magnetic field-strengthening winding is wound on the circumferential surface of the round magnet, and the magnetic field-weakening winding is wound on the circumferential surface of the round magnet; according to the utility model, the coil assembly is fixedly arranged on the outer ring of the circular magnet, and is divided into the magnetic field enhancement winding and the magnetic field weakening winding, and the magnetic field enhancement winding and the magnetic field weakening winding can generate an electromagnetic field by electrifying the magnetic field enhancement winding and the magnetic field weakening winding, and the magnetic field intensity of the circulator is enhanced by controlling the electromagnetic field, so that the frequency of the circulator can be adjusted according to requirements.
Description
Technical Field
The utility model relates to the technical field of circulators, in particular to a magnetic field fine-tuning device of a high-power circulator, a shell and the circulator comprising the same.
Background
A circulator (also known as a toroidal current transformer or current transformer) is a sensor device for measuring current. It is typically composed of two or more annular metal conductors, one of which is a center conductor, surrounded by one or more helically disposed metal rings.
The function of the circulator is to measure the current by inducing faraday's law. When the current through the center conductor changes, an induced electromotive force is generated on the spin-on metal ring of the circulator according to faraday's law, which is proportional to the current through the center conductor. By measuring the induced electromotive force, the magnitude of the current through the center conductor can be deduced.
The circulator is widely applied in a power system and has the following functions and purposes:
current measurement: the circulator can be used to accurately measure alternating current in a power system. They are commonly used for measuring high currents, such as currents in grid lines or power transformers.
Protection and control: circulators are widely used in protection and control devices for electrical power systems. By measuring the current, overload, short-circuit and fault conditions in the system can be monitored and corresponding protection actions triggered to ensure safe operation of the power system.
Energy metering: the circulator can be used for energy metering and electric energy meters in an electric power system. By measuring the current, the consumption of the electric energy can be calculated for electric charge metering and electric energy management.
Monitoring and diagnosis: the circulator may also be used to monitor current waveforms and fault diagnostics in the power system. By analyzing the change and abnormal condition of the current waveform, the stability and the running state of the system can be judged, and the fault detection and maintenance can be carried out.
Because the circulator belongs to a passive device, namely, the performance of the circulator can be reflected under the condition of no power supply, the conventional circulator is fixed with a magnetic field, when the magnetic field is fixed, the frequency of a product is fixed, and the situation that the high-power circulator is in use, because the power is too large, the frequency of the circulator tends to shift some, and the precision of the circulator is reduced occurs.
Disclosure of Invention
The utility model aims to solve the technical problem that the precision of a high-power circulator in use is reduced, and aims to provide a magnetic field fine-tuning device of the high-power circulator, a shell and the circulator comprising the magnetic field fine-tuning device, so that the purposes of magnetic field adjustment and precision improvement are realized.
The utility model is realized by the following technical scheme:
a magnetic field trimming device for a high power circulator, comprising: the coil assembly is internally provided with a circular through hole, the circular magnet is fixedly arranged in the circular through hole, and the central axis of the circular magnet is coincident with the central axis of the coil;
the thickness of the coil component is equal to that of the circular magnet, and the diameter of the circular through hole is equal to that of the circular magnet;
the coil assembly comprises a magnetic field enhancement winding and a magnetic field weakening winding, wherein the magnetic field enhancement winding is wound on the circumferential surface of the round magnet, and the magnetic field weakening winding is wound on the circumferential surface of the round magnet.
Optionally, the magnetic field enhancement winding is provided with a first current input end and a first current output end, and the magnetic field weakening winding is provided with a second current input end and a second current input end;
the first current input end and the second current input end are led out from the coil assembly and then connected to the positive electrode of the power supply;
the first current output end and the second current output end are connected to the negative electrode of the power supply after being led out from the coil assembly.
Optionally, the magnetic field enhancement winding and the magnetic field weakening winding each comprise an enameled wire wound on the circular magnet, and two ends of the enameled wire are a first current input end and a first current output end or a second current input end and a second current output end;
and the winding direction of the enameled wire of the magnetic field enhancement winding is opposite to the winding direction of the enameled wire of the magnetic field weakening winding.
Specifically, after current is introduced into the first current input end, the magnetic field direction of the magnetic field enhancement winding is the same as the magnetic field direction of the circular magnet;
after current is introduced into the second current input end, the magnetic field direction of the field weakening winding is opposite to the magnetic field direction of the circular magnet.
A housing for a high power circulator for carrying a circulator chip assembly and a magnetic field trimming device as described above;
the shell comprises a cavity and a cover plate, the cavity is provided with a first side face and a second side face, the first side face of the cavity is provided with a round cavity, the chip assembly and the magnetic field fine adjustment device are arranged in the round cavity, and the cover plate is connected with the cavity and seals the round cavity.
Optionally, the central axis of the cavity, the central axis of the magnetic field fine tuning device and the central axis of the chip assembly are all coincident.
Optionally, the chip assembly is attached to the bottom surface of the circular cavity, the magnetic field fine adjustment device is attached to the chip assembly, and the cover plate is attached to the magnetic field fine adjustment device.
Specifically, four extraction holes are formed in the side face of the circular cavity, and the first current input end, the first current output end, the second current input end and the second current output end are respectively extracted from the four extraction holes.
Optionally, four independent welding pieces are arranged on the outer side surface of the cavity, and the first current input end, the first current output end, the second current input end and the second current output end are respectively and electrically connected with the four welding pieces.
A circulator comprising a magnetic field trimming device of a high power circulator as described above and a housing of a high power circulator as described above.
Compared with the prior art, the utility model has the following advantages and beneficial effects:
according to the utility model, the coil assembly is fixedly arranged on the outer ring of the circular magnet, and is divided into the magnetic field enhancement winding and the magnetic field weakening winding, and the magnetic field enhancement winding and the magnetic field weakening winding can generate an electromagnetic field by electrifying the magnetic field enhancement winding and the magnetic field weakening winding, and the magnetic field intensity of the circulator is enhanced by controlling the electromagnetic field, so that the frequency of the circulator can be adjusted according to requirements.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the utility model and together with the description serve to explain the principles of the utility model.
Fig. 1 is a schematic structural diagram of a magnetic field fine tuning device of a high-power circulator according to the utility model.
Fig. 2 is a schematic structural view of a housing of a high-power circulator according to the utility model.
Reference numerals: the magnetic field generator comprises a 1-round magnet, a 2-coil assembly, a 3-cavity, a 4-round cavity, a 5-cover plate, an A-first current input end, a B-first current output end, a C-second current input end and a D-second current output end.
Detailed Description
The present utility model will be described in further detail with reference to the drawings and embodiments, for the purpose of making the objects, technical solutions and advantages of the present utility model more apparent. It is to be understood that the specific embodiments described herein are merely illustrative of the substances, and not restrictive of the utility model.
It should be further noted that, for convenience of description, only the portions related to the present utility model are shown in the drawings.
In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
Embodiments of the present utility model and features of the embodiments may be combined with each other without conflict. The present utility model will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
Example 1
As shown in fig. 1, this embodiment provides a magnetic field fine tuning device of a high-power circulator, including: the coil assembly comprises a round magnet 1 and a coil assembly 2, wherein a round through hole is formed in the coil assembly 2, the round magnet 1 is fixedly arranged in the round through hole, and the central axis of the round magnet 1 coincides with the central axis of the coil; the thickness of the coil component 2 is equal to that of the circular magnet 1, and the diameter of the circular through hole is equal to that of the circular magnet;
the coil assembly 2 is internally provided with a circular through hole, and the circular magnet 1 is fixedly arranged in the through hole, so that the central axis of the magnet coincides with the central axis of the coil. The thickness of the coil component 2 is equal to that of the circular magnet 1, and the diameter of the circular through hole is equal to that of the circular magnet, so that the positions of the magnet and the coil are ensured to be relatively fixed, and the magnetic field is convenient to control.
The coil assembly 2 in this embodiment is divided into a field enhancement winding and a field weakening winding, the field enhancement winding is wound on the circumferential surface of the circular magnet 1, the field weakening winding is wound on the circumferential surface of the circular magnet 1, and both the field enhancement winding and the field weakening winding are wound on the circular magnet 1, so that the fixation of the coil assembly 2 and the circular magnet can be realized.
The magnetic field enhancement winding is provided with a first current input end A and a first current output end B, and comprises an enameled wire wound on a round magnet, wherein the two ends of the enameled wire are the first current input end A and the first current output end B.
The magnetic field weakening winding is provided with a second current input end C and a second current input end C, the magnetic field weakening winding comprises an enameled wire wound on a circular magnet, and the two ends of the enameled wire are provided with the second current input end C and the second current output end D;
the first current input end A and the second current input end C are connected to the positive electrode of the power supply after being led out from the coil assembly 2; the first current output terminal B and the second current output terminal D are both connected to the negative electrode of the power supply after being led out from the coil assembly 2. The winding direction of the enameled wire of the magnetic field enhancement winding is opposite to the winding direction of the enameled wire of the magnetic field weakening winding.
Through setting up the winding direction reverse of enameled wire, then can make magnetic field enhancement winding and field weakening winding when the circular magnet of electric current around the opposite direction of circular magnet, then can confirm the magnetic field direction after the coil pack 2 is circular telegram through right hand spiral rule to guarantee to have: after current is introduced into the first current input end A, the magnetic field direction of the magnetic field enhancement winding is the same as that of the circular magnet 1; at this time, the electromagnetic field of the magnetic field enhancement winding is overlapped with the magnetic field of the circular magnet, so that the purpose of enhancing the magnetic field is realized.
When a current is supplied to the second current input terminal C, the field direction of the field weakening winding is opposite to the field direction of the circular magnet 1. At this time, the electromagnetic field of the magnetic field enhancement winding and the magnetic field of the circular magnet cancel, thereby realizing the purpose of weakening the magnetic field.
Example two
The structure of the magnet fine tuning device is changed, the matched shell of the circulator is required to be modified, as shown in fig. 2, the embodiment provides a shell of a high-power circulator, which is used for loading a circulator chip assembly and the magnetic field fine tuning device;
the casing includes cavity 3 and apron 5, and cavity 3 has first side and second side, and the first side of cavity 3 is provided with round cavity 4, and chip assembly and magnetic field micromatic setting all set up in round cavity 4, and apron 5 is connected and seals round cavity 4 with cavity 3.
The central axis of the cavity 3, the central axis of the magnetic field trimming device and the central axis of the chip assembly are all coincident, the chip assembly is attached to the bottom surface of the round cavity 4, the magnetic field trimming device is attached to the chip assembly, and the cover plate 5 is attached to the magnetic field trimming device.
Four leading-out holes 6 are formed in the side face of the circular cavity 4, a first current input end A, a first current output end B, a second current input end C and a second current output end D are led out of the four leading-out holes 6 respectively, four independent welding pieces are arranged on the outer side face of the cavity 3, and the first current input end A, the first current output end B, the second current input end C and the second current output end D are electrically connected with the four welding pieces respectively.
A round cavity 4 which can be sealed is formed by the cover plate 5 and the cavity 3, the chip component and the magnetic field fine tuning device are fixed in the round cavity 4, and then the enameled wire of the coil component 2 can be led out by arranging the leading-out hole 6 on the cavity 3, so that the connection of a power supply is facilitated.
In order to facilitate the welding of customers, welding sheets are arranged on the outer side face of the cavity 3, so that the welding area is increased, and the connection is facilitated.
Example III
The present embodiment provides a circulator, including the magnetic field fine adjustment device of the high-power circulator in the first embodiment and the housing of the high-power circulator in the second embodiment.
In the description of the present specification, reference to the terms "one embodiment/manner," "some embodiments/manner," "example," "a particular example," "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment/manner or example is included in at least one embodiment/manner or example of the utility model. In this specification, the schematic representations of the above terms are not necessarily for the same embodiment/manner or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments/modes or examples. Furthermore, the various embodiments/modes or examples described in this specification and the features of the various embodiments/modes or examples can be combined and combined by persons skilled in the art without contradiction.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
It will be appreciated by persons skilled in the art that the above embodiments are provided for clarity of illustration only and are not intended to limit the scope of the utility model. Other variations or modifications of the above-described utility model will be apparent to those of skill in the art, and are still within the scope of the utility model.
Claims (10)
1. A magnetic field trimming device for a high power circulator, comprising: the coil assembly comprises a round magnet (1) and a coil assembly (2), wherein a round through hole is formed in the coil assembly (2), the round magnet (1) is fixedly arranged in the round through hole, and the central axis of the round magnet (1) is coincident with the central axis of the coil;
the thickness of the coil component (2) is equal to that of the circular magnet (1), and the diameter of the circular through hole is equal to that of the circular magnet;
the coil assembly (2) comprises a magnetic field enhancement winding and a magnetic field weakening winding, wherein the magnetic field enhancement winding is wound on the circumferential surface of the round magnet (1), and the magnetic field weakening winding is wound on the circumferential surface of the round magnet (1).
2. A magnetic field trimming device for a high power circulator according to claim 1, characterized in that the magnetic field enhancing winding is provided with a first current input (a) and a first current output (B), and the magnetic field reducing winding is provided with a second current input (C) and a second current output (D);
the first current input end (A) and the second current input end (C) are led out from the coil assembly (2) and then connected to the positive electrode of a power supply;
the first current output end (B) and the second current output end (D) are led out from the coil assembly (2) and then connected to the negative electrode of the power supply.
3. The magnetic field fine tuning device of a high power circulator of claim 2, wherein the magnetic field enhancement winding and the magnetic field weakening winding each comprise an enameled wire wound on the circular magnet, and two ends of the enameled wire are a first current input end (a) and a first current output end (B), or a second current input end (C) and a second current output end (D);
and the winding direction of the enameled wire of the magnetic field enhancement winding is opposite to the winding direction of the enameled wire of the magnetic field weakening winding.
4. A magnetic field trimming device for a high power circulator according to claim 3, wherein the magnetic field direction of the magnetic field enhancing winding is the same as the magnetic field direction of the circular magnet (1) after current is supplied to the first current input terminal (a);
after current is introduced into the second current input end (C), the magnetic field direction of the field weakening winding is opposite to the magnetic field direction of the circular magnet (1).
5. A housing for a high power circulator, characterized by a housing for carrying a circulator chip assembly and a magnetic field trimming device according to any one of claims 2-4;
the shell comprises a cavity (3) and a cover plate (5), the cavity (3) is provided with a first side face and a second side face, the first side face of the cavity (3) is provided with a round cavity (4), the chip component and the magnetic field fine adjustment device are arranged in the round cavity (4), and the cover plate (5) is connected with the cavity (3) and seals the round cavity (4).
6. The housing of a high power circulator of claim 5, wherein the central axis of the cavity (3), the central axis of the magnetic field trimming means and the central axis of the chip assembly are all coincident.
7. The housing of a high-power circulator according to claim 5, wherein the chip assembly is attached to the bottom surface of the circular cavity (4), the magnetic field trimming device is attached to the chip assembly, and the cover plate (5) is attached to the magnetic field trimming device.
8. The housing of a high-power circulator according to claim 5, characterized in that the side of the circular cavity (4) is provided with four lead-out holes (6), and the first current input end (a), the first current output end (B), the second current input end (C) and the second current output end (D) are led out from the four lead-out holes (6), respectively.
9. The housing of a high-power circulator according to claim 8, wherein the outer side surface of the cavity (3) is provided with four independent welding pieces, and the first current input end (a), the first current output end (B), the second current input end (C) and the second current output end (D) are electrically connected with the four welding pieces, respectively.
10. A circulator comprising a magnetic field trimming device of a high power circulator of any one of claims 1 to 4 and a housing of a high power circulator of any one of claims 5 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321592542.3U CN219979317U (en) | 2023-06-21 | 2023-06-21 | Magnetic field fine adjustment device of high-power circulator, shell and circulator comprising magnetic field fine adjustment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321592542.3U CN219979317U (en) | 2023-06-21 | 2023-06-21 | Magnetic field fine adjustment device of high-power circulator, shell and circulator comprising magnetic field fine adjustment device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219979317U true CN219979317U (en) | 2023-11-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321592542.3U Active CN219979317U (en) | 2023-06-21 | 2023-06-21 | Magnetic field fine adjustment device of high-power circulator, shell and circulator comprising magnetic field fine adjustment device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219979317U (en) |
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2023
- 2023-06-21 CN CN202321592542.3U patent/CN219979317U/en active Active
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