CN112964353A - Double-magnetic-circuit sensor - Google Patents
Double-magnetic-circuit sensor Download PDFInfo
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- CN112964353A CN112964353A CN202110430810.0A CN202110430810A CN112964353A CN 112964353 A CN112964353 A CN 112964353A CN 202110430810 A CN202110430810 A CN 202110430810A CN 112964353 A CN112964353 A CN 112964353A
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- circuit sensor
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H11/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties
- G01H11/02—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties by magnetic means, e.g. reluctance
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
- G01V1/16—Receiving elements for seismic signals; Arrangements or adaptations of receiving elements
- G01V1/18—Receiving elements, e.g. seismometer, geophone or torque detectors, for localised single point measurements
- G01V1/181—Geophones
- G01V1/182—Geophones with moving coil
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Abstract
The application discloses two magnetic circuit sensor belongs to the magnetic circuit sensor field, including yoke, connecting rod, two permanent magnets, two armatures, two mounting panels and two wire winding supports. The N poles or S poles of the two permanent magnets are abutted to the middle part of the yoke iron, and the armature iron is installed on one side of the permanent magnet, which is far away from the yoke iron. The two mounting plates are respectively mounted on two sides of the yoke, the winding supports are sleeved on the permanent magnet, the two winding supports are fixedly connected with the connecting rod, and two ends of the connecting rod are respectively connected with the two mounting plates in a sliding mode. The double-magnetic-circuit sensor disclosed by the invention can simultaneously generate two groups of electromotive force signals, so that the utilization and analysis are convenient, and meanwhile, the connecting rod and the yoke are in sliding connection, and when receiving vibration, the connecting rod can rapidly drive the winding bracket to synchronously vibrate, so that the sensitivity of the double-magnetic-circuit sensor is improved.
Description
Technical Field
The invention relates to the field of magnetic circuit sensors, in particular to a double-magnetic circuit sensor.
Background
The magnetoelectric sensor converts the input motion speed into an induced potential in a coil and outputs the induced potential by utilizing the principle of electromagnetic induction. The sensor directly converts the mechanical energy of a measured object into an electric signal to be output, does not need an external power supply during working, and is a typical passive sensor. In a magnetoelectric sensor, an elastic member is generally provided to transmit an input motion.
When the conventional magnetoelectric sensor is not used, the position of the coil is changed by utilizing the elastic deformation of the mounting plate, but the coil is difficult to move due to the arrangement of the mounting plate during initial vibration, so that the sensitivity is reduced.
Disclosure of Invention
The invention aims to solve the technical problem of disclosing a double-magnetic-circuit sensor so as to improve the problem.
The technical scheme adopted by the invention for solving the technical problems is as follows:
based on the above object, the present invention discloses a dual magnetic circuit sensor, comprising:
the yoke iron is I-shaped and comprises two spaces and a mounting hole for communicating the two spaces;
the two permanent magnets are respectively positioned in the two spaces, and the N poles or the S poles of the two permanent magnets are abutted with the middle part of the yoke iron;
the two armatures are respectively positioned in the two spaces, the two armatures and the two permanent magnets are arranged in a one-to-one correspondence mode, and the armatures are arranged on one side, away from the yoke, of the permanent magnets;
the two mounting plates are respectively mounted on two sides of the yoke, and the mounting plates and the permanent magnet are arranged at intervals;
the connecting rod is arranged in the mounting hole in a sliding mode and is connected with the two mounting plates in a sliding mode; and
two wire winding supports, two wire winding support overlaps respectively and locates two outside the permanent magnet, wire winding support's diameter is greater than the diameter of permanent magnet, all around having first coil on two wire winding supports, first coil is provided with the wiring end, two wire winding support divide all with connecting rod fixed connection.
Optionally: the dual magnetic circuit sensor further includes:
the supporting rod is arranged between the mounting plate and the yoke, the supporting rod is parallel to the connecting rod, and the winding bracket is connected with the supporting rod in a sliding manner;
the first elastic piece is arranged on the yoke iron and sleeved on the supporting rod; and
the second elastic piece is arranged on one side, facing the winding support, of the mounting plate, the second elastic piece is sleeved on the supporting rod, and the winding support is located between the first elastic piece and the second elastic piece.
Optionally: the two ends of the connecting rod are respectively provided with a fixed block, and the diameter of each fixed block is larger than that of the connecting rod.
Optionally: the dual magnetic circuit sensor further includes:
the two wiring boards are arranged oppositely, the wiring boards and the mounting plate are arranged at intervals, the yoke is arranged between the two wiring boards, and the two wiring boards and the two spaces are arranged in a one-to-one correspondence manner;
the extension rod is installed on one of the fixing blocks, the extension rod is connected with the corresponding wiring board in a sliding mode, a clamping groove is formed in the side wall of the extension rod, and the clamping groove extends along the axis of the extension rod;
the fixture block is connected with the wiring board in a sliding mode, and the height of the fixture block in the axial direction of the extension rod is smaller than the length of the clamping groove; and
the automatic control assembly is communicated with the first coil through a wire, when the automatic control assembly is powered on, the fixture block is controlled to move towards the direction deviating from the clamping groove, and when the automatic control assembly is powered off, the fixture block is controlled to move towards the clamping groove.
Optionally: the automatic control assembly includes:
the third elastic piece is arranged between the clamping block and the wiring board and enables the clamping block to have a tendency of moving towards the clamping groove;
a second coil in communication with the first coil through the wire; and
the magnetic part is positioned in the second coil, the magnetic part is connected with the wiring board in a sliding mode, and the clamping block is connected with the magnetic part; when the second coil is electrified, the magnetic part drives the clamping block to move towards the direction deviating from the clamping groove.
Optionally: the dual magnetic circuit sensor further comprises a positioning assembly, the positioning assembly comprising:
the positioning block is connected with the extension rod in a sliding manner;
the fourth elastic piece is arranged between the positioning block and the wiring board and enables the positioning block to have a tendency of moving away from the wiring board; and
and one end of the control rope is connected with the positioning block, and the other end of the control rope is connected with the magnetic part.
Optionally: the automatic control assembly further comprises a manual control structure, the manual control structure comprises a sliding block, the sliding block is connected with the extension rod in a sliding mode, and the sliding block slides to enable the clamping groove to be opened or closed.
Optionally: the manual control structure further comprises:
the rack is connected with the extension rod in a sliding mode and fixedly connected with the sliding block, and the sliding directions of the rack and the sliding block are perpendicular to the axis of the extension rod; and
the control rod, the control rod with the extension rod rotates and is connected, be provided with on the control rod be used for with the tooth that the rack meshes mutually.
Optionally: the control lever can also be followed the axis of extension rod for the extension rod slides, be provided with the fixed slot on the extension rod, slide the control lever so that tooth card on the control lever is gone into or is left the fixed slot.
Optionally: the extension rod is provided with a first sliding groove and a second sliding groove, the extension direction of the first sliding groove is perpendicular to the axis of the extension rod, the first sliding groove is communicated with the clamping groove, and the rack and the sliding block are positioned in the first sliding groove; the second spout is followed the axis of extension pole extends, the second spout with first spout intercommunication, control to live the pole and be located in the second spout.
Compared with the prior art, the invention has the following beneficial effects:
the double-magnetic-circuit sensor disclosed by the invention directly utilizes the connecting rod to enable the two winding supports to achieve the purpose of synchronous movement, so that coils on the two winding supports can simultaneously generate electromotive force signals, the double-magnetic-circuit sensor can simultaneously generate two groups of electromotive force signals, the utilization and analysis are convenient, meanwhile, the connecting rod and the yoke are in sliding connection, and when vibration is received, the connecting rod can rapidly drive the winding supports to synchronously vibrate, so that the sensitivity of the double-magnetic-circuit sensor is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.
FIG. 1 is a schematic diagram of a dual magnetic circuit sensor disclosed in an embodiment of the present invention;
FIG. 2 shows an enlarged view of a portion of FIG. 1 in accordance with an embodiment of the present disclosure;
FIG. 3 is a schematic diagram of a manual control configuration disclosed in an embodiment of the present invention;
FIG. 4 is a schematic view of an extension pole disclosed in an embodiment of the present invention;
figure 5 illustrates a schematic diagram of a patch panel as disclosed in an embodiment of the present invention.
In the figure:
110-a yoke; 111-space; 120-a permanent magnet; 130-an armature; 210-a mounting plate; 220-a first elastic member; 230-a second elastic member; 240-support rods; 300-a connecting rod; 310-fixed block; 400-a winding bracket; 410-a first coil; 420-a wire; 500-an automatic control assembly; 510-a third elastic member; 520-a magnetic member; 530-a second coil; 540-manual control structure; 541-a control lever; 542-a slider; 543-rack; 600-a positioning assembly; 610-a positioning block; 620-a fourth elastic member; 630-a control cord; 700-patch panel; 710-a via; 720-groove; 800-fixture block; 900-extension rod; 910-card slot; 920-a first chute; 930-a second chute; 940-fixed slots.
Detailed Description
The present invention will be described in further detail below with reference to specific embodiments and with reference to the attached drawings.
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present application, as disclosed in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the embodiments of the present application, it should be noted that the indication of orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship which is usually placed when the product of the application is used, or the orientation or positional relationship which is usually understood by those skilled in the art, or the orientation or positional relationship which is usually placed when the product of the application is used, and is only for the convenience of describing the application and simplifying the description, but does not indicate or imply that the indicated device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the application. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
In the description of the embodiments of the present application, it should also be noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," and "connected" are to be construed broadly, and may for example be fixedly connected, detachably connected, or integrally connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
Example (b):
referring to fig. 1 to 5, an embodiment of the present invention discloses a dual magnetic circuit sensor, which includes a yoke 110, a connecting rod 300, two permanent magnets 120, two armatures 130, two mounting plates 210, and two winding brackets 400.
The yoke 110 has an i-shape, and the yoke 110 includes two spaces 111 and a mounting hole for communicating the two spaces 111. Two permanent magnets 120 are installed in two spaces 111 respectively, the N utmost point or the S utmost point of two permanent magnets 120 and the middle part butt of yoke 110, two permanent magnets 120' S magnetic pole sets up in opposite directions promptly, thereby make yoke 110 wholly be N utmost point or S utmost point, two armatures 130 are located two spaces 111 respectively, two armatures 130 and two permanent magnets 120 one-to-one set up, armature 130 is installed in the one side that permanent magnet 120 deviates from yoke 110, the both ends of yoke 110 set up with corresponding permanent magnet 120 and armature 130 relatively, thereby form stable magnetic field.
The two mounting plates 210 are respectively mounted on two sides of the yoke 110, and the mounting plates 210 and the permanent magnet 120 are spaced apart.
The winding supports 400 are sleeved on the permanent magnets 120, and the two winding supports 400 are respectively arranged corresponding to the two permanent magnets 120 one by one. When the winding frame 400 drives the first coil 410 to swing back and forth, the first coil 410 can cut the magnetic induction line, so that electromotive force is generated in the first coil 410.
The connecting rod 300 is disposed in the mounting hole, the two winding brackets 400 are both fixedly connected to the connecting rod 300, and both ends of the connecting rod 300 are slidably connected to the two mounting plates 210, respectively, so as to allow the two winding brackets 400 to swing synchronously.
The disclosed two magnetic circuit sensor of this embodiment directly utilizes connecting rod 300 to make two wire winding support 400 reach synchronous motion's purpose, thereby make the coil on two wire winding support 400 can produce the electromotive force signal simultaneously, this kind of two magnetic circuit sensor can produce two sets of electromotive force signals simultaneously, be convenient for utilize and the analysis, and simultaneously, connecting rod 300 is sliding connection with yoke 110, when receiving the vibration, the synchronous vibration of drive wire winding support 400 that connecting rod 300 can be quick, thereby promote two magnetic circuit sensor's sensitivity.
In some embodiments of the present embodiment, the dual magnetic circuit sensor may further include a support rod 240, a first elastic member 220, and a second elastic member 230.
The support rod 240 is installed between the mounting plate 210 and the yoke 110, the support rod 240 is disposed in parallel with the connection rod 300, and the winding bracket 400 is slidably connected to the support rod 240. The first elastic element 220 is mounted on the yoke 110, and the supporting rod 240 is sleeved with the first elastic element 220. The second elastic member 230 is installed on a side of the mounting plate 210 facing the winding bracket 400, the supporting rod 240 is sleeved with the second elastic member 230, and the winding bracket 400 is located between the first elastic member 220 and the second elastic member 230.
The supporting rod 240 can support the winding frame 400, so that the winding frame 400 can slide smoothly, the first elastic member 220 and the second elastic member 230 are sleeved on the supporting rod 240, the first elastic member 220 and the second elastic member 230 can be protected, and in addition, the winding frame 400 can be in more stable contact with the first elastic member 220 and the second elastic member 230.
When the dual magnetic circuit sensor is vibrated to swing the winding bracket 400, the first elastic member 220 and the second elastic member 230 can protect the winding bracket 400 from colliding with the mounting plate 210 and the yoke 110. Meanwhile, the first elastic member 220 and the second elastic member 230 are utilized to position the windings, when the dual magnetic circuit sensor does not vibrate any more, the winding support 400 can still swing and generate electromotive force, but at the moment, the winding support 400 will be subjected to huge resistance, after the winding support 400 is contacted with the first elastic member 220 and the second elastic member 230, under the elastic force action of the first elastic member 220 and the second elastic member 230, the winding support 400 can continue to move, but under the action of the huge resistance, the winding support 400 will stay between the first elastic member 220 and the second elastic member 230, and the winding support 400 is not contacted with the first elastic member 220 or the second elastic member 230, so that the winding support can swing fast when being subjected to vibration next time.
Two fixing blocks 310 may be respectively disposed at both ends of the connecting rod 300, and the diameters of the fixing blocks 310 are greater than that of the connecting rod 300. The fixing blocks 310 are used to limit both ends of the connecting rod 300, thereby preventing the connecting rod 300 from sliding out of the mounting plate 210.
The dual magnetic circuit sensor disclosed in the present embodiment may further include an extension bar 900, a latch 800, an automatic control assembly 500, and two terminal plates 700.
The two terminal plates 700 are disposed to face each other, the yoke 110 is installed between the two terminal plates 700, the space 111 is disposed toward the terminal plates 700, and the two spaces 111 are disposed in one-to-one correspondence with the two terminal plates 700, respectively.
The extension bar 900 is installed at one end of the connecting rod 300, and the extension bar 900 penetrates one of the terminal boards 700 and forms a sliding connection with the terminal board 700. The side wall of the extension rod 900 is provided with a clamping groove 910, the clamping groove 910 extends along the axial direction of the extension rod 900, the clamping block 800 and the wiring board 700 are in sliding connection, the clamping block 800 is slid, so that the clamping block 800 is clamped into or separated from the range of the clamping groove 910, in addition, the height of the clamping block 800 along the axial direction of the extension rod 900 can be smaller than the length of the clamping groove 910, so that when the clamping block 800 is clamped into the clamping groove 910, the extension rod 900 is limited in one direction only, and the extension rod 900 can slide in the other direction.
The automatic control assembly 500 is connected to the first coil 410 through the wire 420, and when the automatic control assembly 500 is powered on, the control latch 800 moves toward a direction away from the latch slot 910, and when the automatic control assembly 500 is powered off, the control latch 800 moves toward the latch slot 910.
When the dual magnetic circuit sensor disclosed in the present embodiment is used, the yoke 110 is connected to a fixed member (e.g., a building), and under the vibration (e.g., an earthquake), the connecting rod 300 and the two first coils 410 vibrate synchronously and cut the magnetic induction lines, so that the two first coils 410 generate electromotive force signals.
One of them first coil 410 can be connected with automatic control subassembly 500, under conventional state, the cooperation of fixture block 800 and draw-in groove 910 has only restricted a activity direction of extension rod 900, when two magnetic circuit sensor accepted the vibration, extension rod 900 can produce the slip along another direction, can make the electromotive force of production in the first coil 410 this moment, and then make automatic control subassembly 500 get electric, fixture block 800 leaves draw-in groove 910 after automatic control subassembly 500 got electric, fixture block 800 no longer causes the restriction to the activity of extension rod 900 this moment, extension rod 900, connecting rod 300 and wire winding support 400 can vibrate wantonly. And after the automatic control assembly 500 loses power, the fixture block 800 is clamped into the clamping groove 910 again, the extension rod 900 can be supported by the fixture block 800, and then the support rod 240, the winding support 400 and the mounting plate 210 are supported, so that the mounting plate 210 cannot deform in a conventional state, the mounting plate 210 is protected, and the double-magnetic-circuit sensor is guaranteed to have higher sensitivity and precision all the time.
The other first coil 410 can be connected with an external double-magnetic-circuit sensor, so that the electromotive force signal can be stored and analyzed, and reliable data reference is provided for scientific research.
In some embodiments of the present embodiment, the automatic control assembly 500 may include a third elastic member 510, a second coil 530, and a magnetic member 520.
The third elastic member 510 is installed between the latch 800 and the wiring board 700, and the third elastic member 510 makes the latch 800 have a tendency to move toward the latch slot 910. The second coil 530 is communicated with the first coil 410 through a lead 420, the magnetic element 520 is positioned in the second coil 530, the magnetic element 520 is connected with the wiring board 700 in a sliding way, and the fixture block 800 is connected with the magnetic element 520; when the second coil 530 is energized, the magnetic member 520 drives the latch 800 to move away from the latch slot 910.
When the second coil 530 loses power, the latch 800 is pushed into the slot 910 under the action of the third elastic element 510, when the second coil 530 is powered on, the magnetic element 520 drives the latch 800 to move towards the direction departing from the slot 910, at this time, the magnetic element 520 and the latch 800 overcome the acting force of the third elastic element 510 to enable the latch 800 to leave the range of the slot 910, and in the process of continuous swinging of the extension rod 900, the second coil 530 is powered on continuously, so that the latch 800 is located outside the range of the slot 910 all the time.
The wiring board 700 may be provided with a through hole 710 and a groove 720, the groove 720 is communicated with the through hole 710, the extension rod 900 is clamped in the through hole 710, and the third elastic member 510, the magnetic member 520 and the fixture block 800 are located in the groove 720.
Further, the groove 720 may be disposed obliquely, and an end of the groove 720 facing away from the through hole 710 is inclined toward the mounting plate 210. On one hand, when the second coil 530 loses power, after the clamping block 800 is clamped in the clamping groove 910, the extension rod 900 can be buffered due to the existence of the third elastic element 510 in the process of stopping swinging; on the other hand, when the dual magnetic circuit sensor is subjected to severe vibration, if the vibration wave is directed downward first, the extension rod 900 can directly utilize a large pressure to press the fixture block 800 into the groove 720, and the second coil 530 is powered to stop the fixture block 800 in the groove 720 in the process.
The automated control assembly 500 of this embodiment may also include a manual control structure 540, the manual control structure 540 for opening or closing the card slot 910. When the dual magnetic circuit sensor needs to be stored for a long time (for example, the dual magnetic circuit sensor is in a selling state just after production is completed), the clamping groove 910 can be controlled to be in an open state by the manual control structure 540, and at this time, the mounting plate 210 can be protected by the support of the clamping block 800 on the extension rod 900;
when the frequency of the dual magnetic circuit sensor is high, the clamping groove 910 can be in a closed state through the manual control structure 540, so that the dual magnetic circuit sensor can be better used;
when the frequency of the dual magnetic circuit sensor is uncertain (i.e. the dual magnetic circuit sensor is used in an indefinite time), the manual control structure 540 can control the card slot 910 to be in an open state, so as to ensure that the mounting plate 210 is protected and can normally work after encountering vibration.
Specifically, the control structure may include a slider 542, a rack 543 and a control rod 541, the slider 542 is slidably connected to the extension rod 900, the slider 542 slides to open or close the slot 910, the rack 543 is slidably connected to the extension rod 900, the rack 543 is fixedly connected to the slider 542, the sliding directions of the rack 543 and the slider 542 are perpendicular to the axis of the extension rod 900, the control rod 541 is rotatably connected to the extension rod 900, and the control rod 541 is provided with teeth for meshing with the rack 543.
The position of the sliding block 542 can be controlled by screwing the control rod 541, for example, when the control rod 541 is screwed forward, the rack 543 can drive the sliding block 542 to close the slot 910, and when the control rod 541 is screwed backward, the rack 543 can drive the sliding block 542 to leave the slot 910, so that the locking block 800 and the slot 910 can be matched.
As a preferred embodiment of this embodiment, a first sliding groove 920, a second sliding groove 930 and a fixing groove 940 may be disposed on the extension rod 900, an extending direction of the first sliding groove 920 is perpendicular to an axis of the extension rod 900, the first sliding groove 920 is communicated with the clamping groove 910, and the rack 543 and the slider 542 are located in the first sliding groove 920; the second sliding groove 930 extends along the axis of the extension rod 900, the second sliding groove 930 is communicated with the first sliding groove 920, the control rod is positioned in the second sliding groove 930, the fixing groove 940 is communicated with the second sliding groove 930, and the control rod 541 can enter or leave the fixing groove 940.
The length of the second sliding groove 930 is long, so that the control rod 541 can slide in the second sliding groove 930, that is, the control rod 541 can rotate relative to the extension rod 900 and slide relative to the extension rod 900, and the control rod 541 can slide relative to the extension rod 900 along the axis of the extension rod 900, the shape of the fixing groove 940 matches with the shape of the teeth on the control rod 541, when the control rod 541 is clamped into the fixing groove 940, the control rod 541 cannot rotate continuously, and when the control rod is separated from the fixing groove 940, the control rod 541 can rotate.
In this embodiment, the height of the teeth should be greater than the height of the rack 543, so that the control rod 541 is always engaged with the rack 543 during the sliding process of the control rod 541, and the positions of the rack 543 and the slider 542 are limited by the control rod 541.
In order to ensure that the control rod 541 can be smoothly clamped into the fixing groove 940, the control rod 541 can be rotated to an extreme position and then the control rod 541 is controlled to slide in the extension rod 900, and at this time, the control rod 541 can be smoothly clamped into the fixing groove 940.
In addition, the dual magnetic circuit sensor disclosed in the present embodiment may further include a positioning assembly 600, and in particular, the positioning assembly 600 may include a positioning block 610, a fourth elastic member 620, and a control rope 630.
The positioning block 610 is slidably connected to the extension rod 900, the fourth elastic element 620 is installed between the positioning block 610 and the wiring board 700, and the fourth elastic element 620 makes the positioning block 610 have a tendency of moving away from the wiring board 700. One end of the control rope 630 is connected to the positioning block 610, and the other end of the control rope 630 is connected to the magnetic member 520.
When the latch 800 leaves the latch slot 910, the control cord 630 may pull the positioning block 610 to move, and at this time, the positioning block 610 presses the fourth elastic element 620, so that the positioning block 610 leaves the fixing block 310, and at this time, the positioning block 610 does not affect the movement of the fixing block 310. After the fixture block 800 is clamped into the clamping groove 910, the positioning block 610 abuts against the fixing block 310 under the action of the fourth elastic element 620, on one hand, the positioning block 610 enables the fixing block 310 to be close to the corresponding wiring board 700, and on the other hand, the fixture block 800 and the clamping groove 910 are matched to enable the fixing block 310 to move towards the direction deviating from the wiring board 700, so that the connection rod 300 and the winding support 400 are fixed.
It should be noted that, in the embodiment, the elastic coefficient of the fourth elastic element 620 is smaller, and the fourth elastic element 620 is used for pushing the connecting rod 300 to move to the position where the latch 800 is engaged with the slot 910, and at this time, the winding bracket 400 is located substantially at the middle position between the first elastic element 220 and the second elastic element 230, so that when the dual magnetic circuit sensor is vibrated, only a small vibration is required to make the latch 310 and the positioning block 610 compress the fourth elastic element 620 and move toward the corresponding wiring board 700. After electromotive forces are generated in the first coil 410 and the second coil 530, the magnetic element 520 may pull the positioning block 610 to be separated from the fixing block 310.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (10)
1. A dual magnetic circuit sensor, comprising:
the yoke iron is I-shaped and comprises two spaces and a mounting hole for communicating the two spaces;
the two permanent magnets are respectively positioned in the two spaces, and the N poles or the S poles of the two permanent magnets are abutted with the middle part of the yoke iron;
the two armatures are respectively positioned in the two spaces, the two armatures and the two permanent magnets are arranged in a one-to-one correspondence mode, and the armatures are arranged on one side, away from the yoke, of the permanent magnets;
the two mounting plates are respectively mounted on two sides of the yoke, and the mounting plates and the permanent magnet are arranged at intervals;
the connecting rod is arranged in the mounting hole in a sliding mode and is connected with the two mounting plates in a sliding mode; and
two wire winding supports, two wire winding support overlaps respectively and locates two outside the permanent magnet, wire winding support's diameter is greater than the diameter of permanent magnet, all around having first coil on two wire winding supports, first coil is provided with the wiring end, two wire winding support divide all with connecting rod fixed connection.
2. The dual magnetic circuit sensor of claim 1, further comprising:
the supporting rod is arranged between the mounting plate and the yoke, the supporting rod is parallel to the connecting rod, and the winding bracket is connected with the supporting rod in a sliding manner;
the first elastic piece is arranged on the yoke iron and sleeved on the supporting rod; and
the second elastic piece is arranged on one side, facing the winding support, of the mounting plate, the second elastic piece is sleeved on the supporting rod, and the winding support is located between the first elastic piece and the second elastic piece.
3. The dual magnetic circuit sensor according to claim 1, wherein fixing blocks are respectively provided at both ends of the connecting rod, and a diameter of the fixing blocks is larger than a diameter of the connecting rod.
4. The dual magnetic circuit sensor of claim 3, further comprising:
the two wiring boards are arranged oppositely, the wiring boards and the mounting plate are arranged at intervals, the yoke is arranged between the two wiring boards, and the two wiring boards and the two spaces are arranged in a one-to-one correspondence manner;
the extension rod is installed on one of the fixing blocks, the extension rod is connected with the corresponding wiring board in a sliding mode, a clamping groove is formed in the side wall of the extension rod, and the clamping groove extends along the axis of the extension rod;
the fixture block is connected with the wiring board in a sliding mode, and the height of the fixture block in the axial direction of the extension rod is smaller than the length of the clamping groove; and
the automatic control assembly is communicated with the first coil through a wire, when the automatic control assembly is powered on, the fixture block is controlled to move towards the direction deviating from the clamping groove, and when the automatic control assembly is powered off, the fixture block is controlled to move towards the clamping groove.
5. The dual magnetic circuit sensor of claim 4, wherein the automatic control assembly comprises:
the third elastic piece is arranged between the clamping block and the wiring board and enables the clamping block to have a tendency of moving towards the clamping groove;
a second coil in communication with the first coil through the wire; and
the magnetic part is positioned in the second coil, the magnetic part is connected with the wiring board in a sliding mode, and the clamping block is connected with the magnetic part; when the second coil is electrified, the magnetic part drives the clamping block to move towards the direction deviating from the clamping groove.
6. The dual magnetic circuit sensor of claim 5, further comprising a positioning assembly, the positioning assembly comprising:
the positioning block is connected with the extension rod in a sliding manner;
the fourth elastic piece is arranged between the positioning block and the wiring board and enables the positioning block to have a tendency of moving away from the wiring board; and
and one end of the control rope is connected with the positioning block, and the other end of the control rope is connected with the magnetic part.
7. The dual magnetic circuit sensor of claim 5, wherein the automatic control assembly further comprises a manual control structure, the manual control structure comprises a slider, the slider is slidably connected with the extension rod, and the slider is slid to open or close the slot.
8. The dual magnetic circuit sensor of claim 7, wherein the manual control structure further comprises:
the rack is connected with the extension rod in a sliding mode and fixedly connected with the sliding block, and the sliding directions of the rack and the sliding block are perpendicular to the axis of the extension rod; and
the control rod, the control rod with the extension rod rotates and is connected, be provided with on the control rod be used for with the tooth that the rack meshes mutually.
9. The dual magnetic circuit sensor of claim 8, wherein the control rod is further slidable relative to the extension rod along an axis of the extension rod, and a fixing groove is provided on the extension rod, and the control rod is slid to allow the teeth on the control rod to be engaged with or disengaged from the fixing groove.
10. The dual magnetic circuit sensor according to claim 9, wherein the extension rod is provided with a first sliding slot and a second sliding slot, an extending direction of the first sliding slot is perpendicular to an axis of the extension rod, the first sliding slot is communicated with the slot, and the rack and the slider are located in the first sliding slot; the second spout is followed the axis of extension pole extends, the second spout with first spout intercommunication, control to live the pole and be located in the second spout.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117760542A (en) * | 2024-02-22 | 2024-03-26 | 山东交通学院 | Passive magnetoelectric bridge cable vibration monitoring sensor |
| CN117760542B (en) * | 2024-02-22 | 2024-05-24 | 山东交通学院 | Passive magnetoelectric bridge cable vibration monitoring sensor |
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|---|---|---|---|---|
| CN117760542A (en) * | 2024-02-22 | 2024-03-26 | 山东交通学院 | Passive magnetoelectric bridge cable vibration monitoring sensor |
| CN117760542B (en) * | 2024-02-22 | 2024-05-24 | 山东交通学院 | Passive magnetoelectric bridge cable vibration monitoring sensor |
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