CN119581285A - Electromagnetic force operating mechanism for displacement detection - Google Patents
Electromagnetic force operating mechanism for displacement detection Download PDFInfo
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- CN119581285A CN119581285A CN202411706938.5A CN202411706938A CN119581285A CN 119581285 A CN119581285 A CN 119581285A CN 202411706938 A CN202411706938 A CN 202411706938A CN 119581285 A CN119581285 A CN 119581285A
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- electromagnetic force
- operating mechanism
- displacement detection
- plate
- force operating
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/12—Automatic release mechanisms with or without manual release
- H01H71/24—Electromagnetic mechanisms
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/02—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
本公开提供一种实现位移检测的电磁力操动机构，包括相对设置的下底板和上盖板，所述下底板和所述上盖板之间设置多个框架固定板、正向永磁体以及反向永磁体，所述框架固定板上设置线圈固定板，所述线圈固定板上设置线圈框架，所述线圈框架上设置电磁线圈和电容式直线位移检测单元。本公开实施例具有灵敏度高、结构简单、直接输出电信号的优点，可简化电磁力操动机构的位移检测模块，进而便于判断和确定电磁力操动机构运行状态的良好性以及静态下保持稳定性。
The present disclosure provides an electromagnetic force operating mechanism for realizing displacement detection, comprising a lower base plate and an upper cover plate arranged relatively to each other, a plurality of frame fixing plates, a positive permanent magnet and a reverse permanent magnet are arranged between the lower base plate and the upper cover plate, a coil fixing plate is arranged on the frame fixing plate, a coil frame is arranged on the coil fixing plate, and an electromagnetic coil and a capacitive linear displacement detection unit are arranged on the coil frame. The embodiment of the present disclosure has the advantages of high sensitivity, simple structure, and direct output of electrical signals, and can simplify the displacement detection module of the electromagnetic force operating mechanism, thereby facilitating the judgment and determination of the goodness of the operation state of the electromagnetic force operating mechanism and the stability maintained in static state.
Description
Technical Field
The present disclosure relates to the technical field of electromagnetic driving devices, and in particular, to an electromagnetic force operating mechanism that realizes displacement detection.
Background
The electromagnetic force operating mechanism is used as a novel breaker operating mechanism, and has the advantages of quick brake opening, simple structure, no dispersibility of long-time motion characteristics of a spring mechanism and no oil leakage risk of a hydraulic mechanism. However, the design of opening and closing characteristics is difficult, the detection is difficult, and a conventional sliding rail linear displacement sensor or a spring linear displacement sensor is adopted, so that the moving speed of an electromagnetic force operating mechanism in the circuit breaker is too high, the inertia force is too large, the influence of the elasticity of a sliding rail sliding sheet and a spring is caused, and finally, the displacement in the moving process of an electromagnetic force driving unit cannot be accurately fed back and collected, so that the moving state of the electromagnetic force operating mechanism is not easy to detect, and the adaptive internal running state of a body cannot be further judged. In addition, as an operating mechanism of the intelligent circuit breaker, no scheme for directly communicating signals among different system parts of the whole equipment by adopting electric signals is adopted at present.
Disclosure of Invention
An object of an embodiment of the present disclosure is to provide an electromagnetic force operating mechanism for realizing displacement detection, so as to solve the above-mentioned problems in the prior art.
In order to solve the technical problem, an embodiment of the present disclosure provides an electromagnetic force operating mechanism for realizing displacement detection, including a lower plate and an upper cover plate that are relatively arranged, a plurality of frame fixing plates, forward permanent magnets and reverse permanent magnets are arranged between the lower plate and the upper cover plate, coil fixing plates are arranged on the frame fixing plates, coil frames are arranged on the coil fixing plates, and electromagnetic coils and capacitive linear displacement detection units are arranged on the coil frames.
In some embodiments, the outer side of the upper cover plate is connected with an output plate through an output rod, and the output plate and the upper cover plate are arranged in parallel.
In some embodiments, the output rods are a plurality of, and the plurality of output rods are arranged in parallel with each other.
In some embodiments, the forward permanent magnet and the reverse permanent magnet are disposed along an extension direction of the frame fixing plate at a distance.
In some embodiments, the coil fixing plate is extended in a direction perpendicular to the frame fixing plate, which is capable of connecting a plurality of the frame fixing plates to each other.
In some embodiments, the coil frame is disposed along an extension direction of the coil fixing plate, the coil frame crossing at least one of the forward permanent magnet or the reverse permanent magnet.
In some embodiments, the capacitive linear displacement detecting unit includes an inductance-capacitance electrode motherboard, an inductance-capacitance electrode daughter board, and a capacitor, the inductance-capacitance electrode motherboard is disposed on the coil fixing board, and the inductance-capacitance electrode daughter board is movably disposed on the inductance-capacitance electrode motherboard.
In some embodiments, the lc electrode motherboard is a planar structure.
In some embodiments, the inductance capacitance electrode motherboard comprises an insulating substrate made of epoxy resin insulating material, and grid-shaped electrode plates are arranged on the insulating substrate.
In some embodiments, the lc electrode sub-board includes a plurality of electrode pads having equal length and unequal width, and the lc electrode sub-board is connected to the capacitor through a detection circuit.
The embodiment of the disclosure has the advantages of high sensitivity, simple structure and direct output of electric signals, and can simplify the displacement detection module of the electromagnetic force operating mechanism, thereby being convenient for judging and determining the operational state of the electromagnetic force operating mechanism and keeping stability under static state.
Drawings
In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present disclosure, and other drawings may be obtained according to these drawings without inventive effort to a person of ordinary skill in the art.
Fig. 1 is a schematic structural diagram of an electromagnetic force operating mechanism for realizing displacement detection according to an embodiment of the present disclosure;
Fig. 2 is a schematic structural diagram of a capacitive linear displacement detection unit in an electromagnetic force actuator for realizing displacement detection according to an embodiment of the present disclosure;
Fig. 3 is a schematic structural diagram of an inductance-capacitance electrode motherboard in a capacitive linear displacement detection unit in an electromagnetic force operation mechanism for realizing displacement detection according to an embodiment of the present disclosure;
Fig. 4 is a schematic structural diagram of an inductance-capacitance electrode sub-board in a capacitive linear displacement detection unit in an electromagnetic force operation mechanism for realizing displacement detection according to an embodiment of the present disclosure.
Reference numerals:
1-output plate, 2-output rod, 3-upper cover plate, 4-forward permanent magnet, 5-frame fixing plate, 6-coil fixing plate, 7-electromagnetic coil, 8-coil frame, 9-shielding cover, 10-inductance capacitance electrode mother plate, 11-inductance capacitance electrode daughter plate, 12-reverse permanent magnet and 13-lower bottom plate.
Detailed Description
Various aspects and features of the disclosure are described herein with reference to the drawings.
It should be understood that various modifications may be made to the embodiments of the application herein. Therefore, the above description should not be taken as limiting, but merely as exemplification of the embodiments. Other modifications within the scope and spirit of this disclosure will occur to persons of ordinary skill in the art.
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and, together with a general description of the disclosure given above and the detailed description of the embodiments given below, serve to explain the principles of the disclosure.
These and other characteristics of the present disclosure will become apparent from the following description of a preferred form of embodiment, given as a non-limiting example, with reference to the accompanying drawings.
It should also be understood that, although the present disclosure has been described with reference to some specific examples, a person skilled in the art will certainly be able to achieve many other equivalent forms of the present disclosure, having the characteristics as set forth in the claims and hence all coming within the field of protection defined thereby.
The above and other aspects, features and advantages of the present disclosure will become more apparent in light of the following detailed description when taken in conjunction with the accompanying drawings.
Specific embodiments of the present disclosure will be described hereinafter with reference to the drawings, however, it should be understood that the embodiments disclosed are merely examples of the disclosure which may be practiced in various ways. Well-known and/or repeated functions and constructions are not described in detail to avoid obscuring the disclosure in unnecessary or unnecessary detail. Therefore, specific structural and functional details disclosed herein are not intended to be limiting, but merely serve as a basis for the claims and as a representative basis for teaching one skilled in the art to variously employ the present disclosure in virtually any appropriately detailed structure.
The specification may use the word "in one embodiment," "in another embodiment," "in yet another embodiment," or "in other embodiments," which may each refer to one or more of the same or different embodiments in accordance with the disclosure.
The embodiment of the disclosure provides an electromagnetic force operating mechanism for realizing displacement detection, wherein the electromagnetic force operating mechanism is used in a high-voltage circuit breaker, and a detection device in the electromagnetic force operating mechanism belongs to a non-contact linear displacement detection device, can be adapted to the electromagnetic force operating mechanism, and further comprises a device for determining the running state of a driving unit in the electromagnetic force operating mechanism, such as determining the speed and the acceleration of the driving unit.
As shown in fig. 1, the electromagnetic force operating mechanism for realizing displacement detection comprises a lower base plate 13 and an upper cover plate 3 which are oppositely arranged, wherein a plurality of frame fixing plates 5 are arranged between the lower base plate 13 and the upper cover plate 3, and a frame structure can be formed by arranging the frame fixing plates 5 between the lower base plate 13 and the upper cover plate 3.
Further, the outer side of the upper cover plate 3 is connected with the output plate 1 through the output rods 2, the output plate 1 and the upper cover plate 3 are arranged in parallel, and a plurality of output rods 2 can be arranged here, so that the output plate 1 is more stably mounted on the frame structure, and a plurality of output rods 2 are arranged in parallel.
Further, a forward permanent magnet 4 and a reverse permanent magnet 12 are provided between the lower plate 13 and the upper plate 3, and the forward permanent magnet 4 and the reverse permanent magnet 12 are provided along the extending direction of the frame fixing plate 5. Here, the forward permanent magnet 4 and the reverse permanent magnet 12 are disposed at a distance, for example, the forward permanent magnet 4 and the reverse permanent magnet 12 are disposed on different ones of the frame fixing plates 5.
Further, the coil fixing plate 6 is disposed on the frame fixing plate 5, the coil fixing plate 6 is disposed along a direction perpendicular to the frame fixing plate 5, and can connect a plurality of frame fixing plates 5 to each other, and the frame structure is more stable through the cooperation of the frame fixing plate 5 and the coil fixing plate 6.
Further, a coil frame 8 is provided on the coil fixing plate 6, and the coil frame 8 may be provided along the extending direction of the coil fixing plate 6, wherein an electromagnetic coil 7 and a capacitive linear displacement detecting unit are provided on the coil frame 8. The coil former 8 here can span at least one of the forward permanent magnets 4 or the reverse permanent magnets 12.
Further, as shown in fig. 2-4 and in combination with fig. 1, the capacitive linear displacement detection unit includes an inductance-capacitance electrode motherboard 10, an inductance-capacitance electrode sub-board 11, and a capacitor, where the inductance-capacitance electrode motherboard 10 is disposed on the coil fixing board 6, and the inductance-capacitance electrode sub-board 11 is movably disposed on the inductance-capacitance electrode motherboard 10, where the inductance-capacitance electrode motherboard 10 is fixedly disposed relative to the frame structure, and the inductance-capacitance electrode sub-board 11 is connected to a driving unit of the electromagnetic force operation mechanism, where when the driving unit moves relative to the frame structure, a capacitance value is changed by using a relative displacement between the inductance-capacitance electrode sub-board 11 and the inductance-capacitance electrode motherboard 10, so that an electrical signal generated during a moving process of the driving unit can be directly acquired in a non-contact state.
The inductance capacitance electrode motherboard 10 has a flat plate structure. Specifically, the mother board 10 for the lc electrode is shown in fig. 3, and the daughter board 11 for the lc electrode is shown in fig. 4. In one embodiment, the motherboard 10 is a plate, and comprises an insulating substrate made of epoxy resin insulating material, wherein grid electrode plates are arranged on the insulating substrate, the electrode plates are made of copper sheets and attached to the insulating substrate, the motherboard 11 is provided with a plurality of electrode plates with equal length and unequal width, and the motherboard 11 is connected with the capacitor through a detection circuit.
In this embodiment, the motherboard 10 is configured as a checkerboard electrode plate, and includes a plurality of grid electrode plates inside, the electrode plates are the same square, wherein the black part in fig. 2 and 3 is an electrode plate with attached surface, and the white part is an insulating substrate of exposed epoxy resin.
By adopting the above structure arrangement of the inductance capacitance electrode motherboard 10 and the inductance capacitance electrode sub-board 11, when the inductance capacitance electrode sub-board 11 moves on the inductance capacitance electrode motherboard 10, the inductance capacitance electrode sub-board 11 outputs periodic oscillating waveform signals based on the electromagnetic induction principle, thereby determining the linear motion displacement of the driving unit, and achieving the purpose of motion detection for the electromagnetic force operation mechanism.
Unlike the traditional external linear displacement sensor which needs to deploy sensor compatibility and conversion processing units of different signals, the capacitive linear displacement detection unit of the embodiment of the disclosure can be directly arranged on the side surface of the electromagnetic force operation mechanism, and the measured displacement information is directly transmitted to the control device of the electromagnetic force operation mechanism, so that the self-checking function of the electromagnetic force operation mechanism is expanded, and the running stability of the electromagnetic force operation mechanism is improved.
Because the general electromagnetic force operating mechanism is compact in structure, the conventional linear displacement sensor is inconvenient to install, and the capacitive linear displacement detecting unit adopted by the embodiment is simple in structure and only comprises an inductance capacitance electrode daughter board and a mother board, occupies a small space, can reasonably arrange a measuring module especially when arranged on the side face of the electromagnetic force operating mechanism, and is higher in integration degree.
Further, the outer sides of the inductance capacitance electrode motherboard 10 and the inductance capacitance electrode daughter board 11 are sleeved with a shielding case 9, where the shielding case is, for example, a metal shielding case, and the electromagnetic force operation mechanism can be prevented from interfering with measurement by arranging the metal shielding case.
Specifically, in the process of moving the inductance capacitance electrode daughter board 11 on the inductance capacitance electrode motherboard 10, the charge on the inductance capacitance electrode daughter board 11 generates periodic movement, so that the current or voltage of a circuit is directly detected, the movement and displacement state of the electromagnetic force operating mechanism in the circuit breaker are known, the normal operation of the electromagnetic force operating mechanism in the process is further determined, and in addition, the static stability of an operating component of the electromagnetic force operating mechanism in the static state can be determined through the displacement state.
In this embodiment, the planar lc electrode motherboard 10 is fixed on the coil fixing board that causes the magnetic force to move, and in the moving process of the magnetic force operating mechanism, the lc electrode daughter board 11 is driven to move linearly along the extending direction of the lc electrode motherboard 10, so that a relative displacement is formed between the lc electrode daughter board 11 and the lc electrode motherboard 10, so that the lc electrode daughter board 10 outputs a periodic oscillation signal, and the linear movement displacement of the electromagnetic force operating mechanism is further determined by analyzing based on the oscillation signal.
In the present embodiment, the displacement detection of the electromagnetic force operating mechanism is formed by the relative movement between the inductance capacitance electrode sub-board 11 and the inductance capacitance electrode motherboard 10. Specifically, the inductance-capacitance electrode sub-board 11 is utilized to change the capacitance value in a relative movement state, so that the voltage and the current in the circuit are changed, and the position information is converted into an electric signal and is output to a background detection module.
According to the embodiment of the disclosure, the capacitance value of the capacitor is changed by utilizing the relative movement between the inductance capacitance electrode plates, and the inductance capacitance electrode sub-plates 11 and the inductance capacitance electrode mother plate 10 with different styles and sizes can be arranged, so that the linear movement of the electromagnetic force operating mechanism can be accurately and sensitively determined in a non-contact state, and the phenomenon of overshoot caused by the fact that the electromagnetic force operating mechanism moves too fast is avoided. The embodiment can avoid the contact between the moving part and the static object, has the characteristics of high sensitivity, simple structure and high speed suitable for the electromagnetic force operating mechanism, and simultaneously adopts the smaller inductance capacitance electrode sub-board to avoid the overshoot of the linear displacement measurement, so that the inaccuracy of measurement data is caused, and the misjudgment of the control device of the electromagnetic force operating mechanism is further caused.
The embodiment of the disclosure has the advantages of high sensitivity, simple structure and direct output of electric signals, and can simplify the displacement detection module of the electromagnetic force operating mechanism, thereby being convenient for judging and determining the operational state of the electromagnetic force operating mechanism and keeping stability under static state.
Furthermore, the features of the embodiments shown in the drawings of the application or of the various embodiments mentioned in the description are not necessarily to be understood as separate embodiments from each other. Rather, each feature described in one example of one embodiment may be combined with one or more other desired features from other embodiments, resulting in other embodiments not described in text or with reference to the drawings.
The foregoing embodiments are merely illustrative of the technical solutions of the present application, and not restrictive, and although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that modifications may still be made to the technical solutions described in the foregoing embodiments or equivalent substitutions of some technical features thereof, and that such modifications or substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present application.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411706938.5A CN119581285A (en) | 2024-11-26 | 2024-11-26 | Electromagnetic force operating mechanism for displacement detection |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202411706938.5A CN119581285A (en) | 2024-11-26 | 2024-11-26 | Electromagnetic force operating mechanism for displacement detection |
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| CN119581285A true CN119581285A (en) | 2025-03-07 |
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| CN202411706938.5A Pending CN119581285A (en) | 2024-11-26 | 2024-11-26 | Electromagnetic force operating mechanism for displacement detection |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101118148A (en) * | 2007-09-06 | 2008-02-06 | 浙江大学 | Planar capacitive sensor based on capacitive measurement principle |
| EP1923592A1 (en) * | 2006-11-14 | 2008-05-21 | TMD Friction Services GmbH | Brake or gear lining with capacitative force sensor |
| CN106643470A (en) * | 2016-12-26 | 2017-05-10 | 清华大学 | Absolute type capacitor angle displacement measurement sensor |
| CN108389749A (en) * | 2017-09-11 | 2018-08-10 | 平高集团有限公司 | A kind of three-station isolating grounding switch |
| CN118899202A (en) * | 2024-08-23 | 2024-11-05 | 广东电网有限责任公司云浮供电局 | Electromagnetic force operating mechanism and circuit breaker |
-
2024
- 2024-11-26 CN CN202411706938.5A patent/CN119581285A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1923592A1 (en) * | 2006-11-14 | 2008-05-21 | TMD Friction Services GmbH | Brake or gear lining with capacitative force sensor |
| CN101118148A (en) * | 2007-09-06 | 2008-02-06 | 浙江大学 | Planar capacitive sensor based on capacitive measurement principle |
| CN106643470A (en) * | 2016-12-26 | 2017-05-10 | 清华大学 | Absolute type capacitor angle displacement measurement sensor |
| CN108389749A (en) * | 2017-09-11 | 2018-08-10 | 平高集团有限公司 | A kind of three-station isolating grounding switch |
| CN118899202A (en) * | 2024-08-23 | 2024-11-05 | 广东电网有限责任公司云浮供电局 | Electromagnetic force operating mechanism and circuit breaker |
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