CN115602464B - Electromagnetic switch capable of automatically braking - Google Patents

Electromagnetic switch capable of automatically braking Download PDF

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Publication number
CN115602464B
CN115602464B CN202211417296.8A CN202211417296A CN115602464B CN 115602464 B CN115602464 B CN 115602464B CN 202211417296 A CN202211417296 A CN 202211417296A CN 115602464 B CN115602464 B CN 115602464B
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CN
China
Prior art keywords
electromagnet
frame
armature
motor
rotor
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CN202211417296.8A
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Chinese (zh)
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CN115602464A (en
Inventor
王惠杰
王鲲
黄定侑
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Suyuan Electric Quanzhou Co ltd
Xiamen Likong Electric Co ltd
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Suyuan Electric Quanzhou Co ltd
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Priority to CN202211417296.8A priority Critical patent/CN115602464B/en
Publication of CN115602464A publication Critical patent/CN115602464A/en
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Publication of CN115602464B publication Critical patent/CN115602464B/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/52—Cooling of switch parts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00—Parts or details
    • F16D65/14—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/58—Electric connections to or between contacts; Terminals
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
    • H01H3/28—Power arrangements internal to the switch for operating the driving mechanism using electromagnet
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/02—Bases, casings, or covers
    • H01H9/0264—Protective covers for terminals
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
    • H02K7/102—Structural association with clutches, brakes, gears, pulleys or mechanical starters with friction brakes
    • H02K7/1021—Magnetically influenced friction brakes
    • H02K7/1023—Magnetically influenced friction brakes using electromagnets
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2121/00—Type of actuator operation force
    • F16D2121/18—Electric or magnetic
    • F16D2121/20—Electric or magnetic using electromagnets

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Braking Arrangements (AREA)

Abstract

The invention relates to the technical field of switches, in particular to an electromagnetic switch capable of automatically braking. The invention aims to provide an electromagnetic switch which can realize double braking through electromagnetism and resistance and can automatically brake. The utility model provides a can automatic brake's electromagnetic switch, includes installing frame and electromagnetic switch, and the installing frame is installed in the electromagnetic switch left side, still including conductor block and magnetic attraction trigger mechanism, and the installing frame right part inboard is equipped with the magnetic attraction trigger mechanism who is used for carrying out electromagnetic braking to the rotor on the motor, and magnetic attraction trigger mechanism left part is connected with the conductor block. The second electromagnet is electrified to generate electromagnetic attraction to electromagnetically brake a rotor on the motor, meanwhile, the second electromagnet is electrified to adsorb the second armature to move upwards, the second armature drives the speed reduction roller to move upwards through the guide frame to be in contact with the rotor on the motor, and the rotor on the motor is braked through resistance.

Description

Electromagnetic switch capable of automatically braking
Technical Field
The invention relates to the technical field of switches, in particular to an electromagnetic switch capable of automatically braking.
Background
The electromagnetic switch is a switch controlled by an electromagnet, namely a combination of the electromagnet and the switch. When the electromagnet coil is electrified, electromagnetic attraction is generated, the movable iron core pushes or pulls the switch contact to be closed, and therefore the controlled circuit is connected. The electromagnetic switch is a control switch on the motor, when the electromagnetic switch is switched from a closed state to an open state, the electromagnetic switch controls the motor to be closed, and when the motor is closed, a rotor on the motor can continue to rotate for a period of time under the action of inertia, so that equipment can be failed and safety accidents can be caused for some equipment needing accurate position control.
How to design an electromagnetic switch which can realize double braking through electromagnetism and resistance and can automatically brake is the technical problem to be solved by the patent.
Disclosure of Invention
The invention aims to overcome the defect that when an electromagnetic switch controls a motor to be turned off, a rotor on the motor can continuously rotate for a period of time under the action of inertia, so that redundant rotating torque can be generated, and thus equipment can be failed and safety accidents are caused for equipment needing accurate position control.
The technical scheme is as follows: the electromagnetic switch capable of automatically braking comprises a mounting frame and an electromagnetic switch, wherein the mounting frame is mounted on the left side of the electromagnetic switch, the electromagnetic switch further comprises a conductor block, a second electromagnet, a deceleration roller, a magnetic attraction triggering mechanism and a buffering deceleration mechanism, the magnetic attraction triggering mechanism for electromagnetically braking a rotor on a motor is arranged on the inner side of the right part of the mounting frame, the left part of the magnetic attraction triggering mechanism is connected with the conductor block, the second electromagnet for electromagnetically braking the rotor on the motor is mounted on the inner side of the left part of the mounting frame, the conductor block is connected with an external power supply through a wire, the magnetic attraction triggering mechanism is connected with the power supply of the external motor through a wire, when the motor is turned off, the magnetic attraction triggering mechanism loses magnetic force when the motor is turned off, the conductor block rotates downwards due to gravity and is in contact with the second electromagnet, the second electromagnet is electrified, the second electromagnet generates electromagnetic attraction to electromagnetically brake the rotor on the motor, the buffering deceleration mechanism for performing resistance braking on the rotor on the motor is arranged on the inner side of the mounting frame, the upper rotary type deceleration mechanism is connected with the roller for braking the rotor on the motor through resistance of the rotor on the motor, the electromagnetic electromagnet, the electromagnetic attraction adsorption buffering deceleration mechanism, the electromagnetic mechanism moves upwards to drive the roller, and the deceleration mechanism, and the motor to perform resistance braking on the rotor on the motor.
As an improvement of the scheme, the magnetic attraction triggering mechanism comprises a first electromagnet, a first armature, a seesaw, a sliding sleeve and a wiring frame, the first electromagnet is installed on the inner side of the right part of the installation frame, the inner side of the right part of the installation frame is connected with the first armature in a sliding mode, the first armature is located above the first electromagnet, the first electromagnet is attracted with the first armature, the inner side of the middle part of the installation frame is rotatably connected with the seesaw, the upper part of the first armature is rotatably connected with the sliding sleeve, the sliding sleeve is slidably connected with the right part of the seesaw, the left end of the seesaw is connected with the conductor block, the wiring frame is installed at the bottom of the first electromagnet, the wiring frame penetrates through the installation frame, the first electromagnet is connected with a power supply of an external motor through a wire through the wiring frame, when the motor is turned off, the first electromagnet loses electromagnetic attraction, the conductor block is downwards rotated due to gravity to be in contact with the second electromagnet, the second electromagnet is electrified to generate electromagnetic attraction to carry out electromagnetic braking on the rotor on the motor, and the rotor on the motor is braked.
As an improvement of the scheme, the rocker-rocker mounting structure further comprises a spring plate, the middle of the upper side in the mounting frame is connected with the spring plate used for buffering the rocker, and the lower end of the spring plate is in contact with the left part of the rocker.
As the improvement of the scheme, the buffering speed reducing mechanism comprises slide bars, guide frames and second armatures, the inner sides of the lower parts of the mounting frames are connected with the slide bars, the guide frames are connected between the slide bars on the left side and the right side in a sliding mode, the lower parts of the guide frames are connected with the speed reducing idler wheels in a rotating mode, the second armatures are connected between the front side and the rear side of the top of the guide frames, the second armatures are attracted with the second electromagnets, the second armatures are adsorbed to move upwards when the second electromagnets are powered on, and the second armatures drive the speed reducing idler wheels to move upwards through the guide frames to brake the rotor on the motor.
The improvement of the scheme is that the magnetic brake device further comprises a magnetic reinforcing mechanism for further braking a rotor on the motor, the magnetic reinforcing mechanism comprises a support frame, a third electromagnet, a telescopic rod, a first spring, a third armature and a button, the support frame is connected to the front side and the rear side of the left middle part of the installation frame, the third electromagnet for performing electromagnetic braking on the rotor on the motor is installed on the lower portion of the support frame, the third electromagnet is located inside the installation frame, the telescopic rods are connected to the left side and the right side of the middle part in the installation frame, the third armature is connected between the inner sides of the telescopic rods on the left side and the right side, attracted to the second electromagnet, sleeved with the first spring, two ends of the first spring are respectively connected with the telescopic rods and the third armature, the button is installed on the front side of the middle part in the installation frame, and electrically connected with the third electromagnet, the third armature on the right side can move leftwards to press the button, the second electromagnet is electrified to generate electromagnetic attraction to adsorb the third armature to move inwards, the third armature presses the button to control the third electromagnet to start, and perform electromagnetic braking on the rotor on the motor.
As the improvement of above-mentioned scheme, still including being used for the radiating conductor heat dissipation mechanism of blowing to the installing frame inside, conductor heat dissipation mechanism is including fan and guide duct, and the installing frame top is installed and is used for the radiating fan of blowing to the installing frame inside, and the intercommunication has the guide duct between fan and the installing frame top, and open on installing frame top right side has the louvre, and the fan is through the guide duct heat dissipation of blowing to the installing frame inside, and the inside gaseous louvre discharge on through the installing frame of installing frame.
As the improvement of above-mentioned scheme, still including being used for carrying out the protection machanism who protects the link, protection machanism is including closing the lid, the stopper, second spring and card pearl, installing frame right part below is connected with the stopper, the slidingtype is connected with the lid that closes that is used for the link to protect between the stopper, it covers the link to close the lid, it has three recess to close to cover the left side to open, the electric wire passes the recess that closes the lid and is connected with the link, the equal slidingtype in left part front and back both sides is connected with the card pearl in closing the lid, card pearl bottom all with close and be connected with the second spring between the lid, the equal front and back symmetry in installing frame bottom left and right sides is opened there is the draw-in groove, the card pearl card is spacing to closing the lid in the left draw-in groove on the installing frame, close the lid through removing to expose the link, it covers the link to protect the link to move left.
As an improvement of the scheme, the magnetic isolation device further comprises a magnetic isolation mechanism used for isolating magnetic force generated on the upper portion of the second electromagnet, the magnetic isolation mechanism comprises an isolation plate and fixing blocks, the left side and the right side of the middle portion in the installation frame are connected with the fixing blocks, the isolation plate used for isolating the magnetic force generated on the upper portion of the second electromagnet is connected between the fixing blocks, and the isolation plate is sleeved on the upper portion of the second electromagnet.
The invention has the following advantages: the second electromagnet is electrified to generate electromagnetic attraction to electromagnetically brake the rotor on the motor, meanwhile, the second electromagnet is electrified to adsorb a second armature to move upwards, the second armature drives the speed reduction roller to move upwards through the guide frame to be in contact with the rotor on the motor, and the rotor on the motor is subjected to resistance braking; the third electromagnet is arranged to generate electromagnetic attraction to further electromagnetically brake the rotor on the motor, so that the rotor on the motor is braked, and the braking effect is enhanced; the fan blows air to the inside of the mounting frame through the air guide pipe for heat dissipation, and gas in the mounting frame is exhausted through the heat dissipation holes in the mounting frame, so that the situation that the magnetic force of the first electromagnet, the second electromagnet and the third electromagnet is indirectly influenced due to the fact that the temperature in the mounting frame is high and the current is reduced is prevented; the arranged close cover covers the wire connection frame to protect the wire connection frame, so that the wire connection frame is prevented from being damaged due to external influence; the magnetic force generated by the upper part of the second electromagnet is cut off by the partition plate, so that the second electromagnet is prevented from being electrified to generate electromagnetic attraction to adsorb the first armature.
Drawings
Fig. 1 is a schematic perspective view of the present invention.
Fig. 2 is a schematic perspective view of the internal structure of the present invention.
Fig. 3 is a schematic perspective view of the magnetic attraction triggering mechanism of the present invention.
Fig. 4 is a perspective view of the first part of the buffering deceleration mechanism of the invention.
Fig. 5 is a schematic view of a second partially separated body structure of the buffering deceleration mechanism of the invention.
Fig. 6 is a schematic view of a first partial body structure of the magnetic reinforcing mechanism of the present invention.
Fig. 7 is a schematic structural view of a second partial body of the magnetic reinforcing mechanism of the present invention.
Fig. 8 is a perspective view of a third part of the magnetic reinforcing mechanism of the present invention.
Fig. 9 is a schematic perspective view of a conductor heat dissipation mechanism according to the present invention.
Fig. 10 is a schematic view of a first partial body structure of the guard mechanism of the present invention.
Fig. 11 is a schematic sectional perspective view of the protection mechanism of the present invention.
Fig. 12 is a schematic view of a second partial body structure of the protection mechanism of the present invention.
Fig. 13 is a schematic perspective view of a magnetic isolation mechanism according to the present invention.
Number designation in the figure: 1. the electromagnetic switch comprises a mounting frame, 11, an electromagnetic switch, 2, a magnetic attraction triggering mechanism, 21, a first electromagnet, 22, a first armature, 23, a seesaw, 24, a sliding sleeve, 25, a conductor block, 26, an elastic sheet, 27, a second electromagnet, 28, a wiring frame, 3, a buffering and decelerating mechanism, 31, a sliding rod, 32, a guide frame, 33, a decelerating roller, 34, a second armature, 4, a magnetic enhancement mechanism, 41, a support frame, 42, a third electromagnet, 43, a telescopic rod, 44, a first spring, 45, a third armature, 46, a button, 5, a conductor heat dissipation mechanism, 51, a fan, 52, an air guide pipe, 6, a protection mechanism, 61, a closing cover, 62, a limiting block, 63, a second spring, 64, a clamping ball, 7, a magnetic isolation mechanism, 71, an isolation plate, 72 and a fixing block.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
Example 1
The utility model provides an electromagnetic switch that can automatic brake, refer to fig. 1-5, including installing frame 1, electromagnetic switch 11, magnetic attraction trigger mechanism 2 and buffering reduction gears 3, installing frame 1 is installed in electromagnetic switch 11 left side, 1 right part inboard of installing frame is equipped with magnetic attraction trigger mechanism 2, magnetic attraction trigger mechanism 2 is used for carrying out electromagnetic braking to the rotor on the motor, 2 left parts of magnetic attraction trigger mechanism are connected with conductor block 25, second electro-magnet 27 is installed to 1 left part inboard of installing frame, 1 lower part inboard of installing frame is equipped with buffering reduction gears 3, buffering reduction gears 3 is used for carrying out resistance braking to the rotor on the motor, it is connected with speed reduction roller 33 to rotate the formula on buffering reduction gears 3.
Referring to fig. 3, the magnetic attraction triggering mechanism 2 includes a first electromagnet 21, first armatures 22, a seesaw 23, a sliding sleeve 24, elastic pieces 26 and a wiring frame 28, the first electromagnet 21 is installed on the inner side of the right portion of the installation frame 1, the inner side of the upper middle portion of the installation frame 1 is connected with the two first armatures 22 in a sliding manner, the two first armatures 22 are arranged in a bilateral symmetry manner, the two first armatures 22 are located above the first electromagnet 21, the first electromagnet 21 and the two first armatures 22 attract each other, the inner side of the upper portion of the installation frame 1 is rotatably connected with the seesaw 23, the upper portions of the two first armatures 22 are rotatably connected with the sliding sleeve 24, the two sliding sleeves 24 are rotatably connected with the right portion of the seesaw 23, the left end of the seesaw 23 is connected with a conductor block 25, the middle portion of the upper side of the installation frame 1 is connected with the two elastic pieces 26 for buffering the seesaw 23, the two elastic pieces 26 are symmetrically arranged in a front-back manner, the lower ends of the two elastic pieces 26 are in contact with the left portion of the seesaw 23, the wiring frame 28 is installed at the bottom of the first electromagnet 21, and the wiring frame 28 passes through the installation frame 1.
Referring to fig. 4 to 5, the buffering deceleration mechanism 3 includes a sliding rod 31, a guide frame 32 and a second armature 34, four sliding rods 31 are connected to the inner side of the lower portion of the mounting frame 1, the guide frames 32 are slidably connected between the two sliding rods 31 on the left and right sides, the lower portion of each guide frame 32 is rotatably connected to a deceleration roller 33, the second armature 34 is connected between the front and rear sides of the top of each guide frame 32, and the second armature 34 is attracted to the second electromagnet 27.
When the device is used, the device is arranged on a motor, the electromagnetic switch 11 can control the motor to work, a rotor on the motor penetrates through the lower part of the mounting frame 1 and is positioned between the second electromagnet 27 and the speed reduction roller 33, the first electromagnet 21 is connected with the motor through the wire connecting frame 28 through a wire, the conductor block 25 is in contact with the second electromagnet 27 in an initial state, the conductor block 25 is connected with an external power supply through a wire, so that the second electromagnet 27 is electrified to generate electromagnetic attraction to adsorb the rotor on the motor, meanwhile, the second electromagnet 27 is electrified to adsorb the second armature 34 to move upwards, the second armature 34 drives the speed reduction roller 33 to move upwards through the guide frame 32 to be in contact with the rotor on the motor, when the electromagnetic switch 11 controls the motor to start, the motor is electrified to the first electromagnet 21 through the wire and the wire connecting frame 28, the first electromagnet 21 is electrified to generate the electromagnetic attraction to adsorb the first armature 22 to move downwards, the first armature 22 drives the sliding sleeve 24 to move downwards, the sliding sleeve 24 drives the seesaw 23 to rotate, the left part of the seesaw 23 is in contact with the elastic sheet 26, the elastic sheet 26 buffers the seesaw 23, the seesaw 23 drives the conductor block 25 to rotate upwards to be separated from the second electromagnet 27, the second electromagnet 27 is powered off to lose electromagnetic attraction, the magnetic field influence on a rotor on the motor is avoided, meanwhile, the second armature 34, the guide frame 32 and the speed reduction roller 33 move downwards due to gravity to reset, so that the rotor on the motor operates normally, when the electromagnetic switch 11 controls the motor to be closed, the first electromagnet 21 is powered off to lose electromagnetic attraction, the conductor block 25 rotates downwards due to gravity, the sliding sleeve 24 and the first armature 22 are driven to move upwards to be separated from the first electromagnet 21, the conductor block 25 rotates downwards to be in contact with the second electromagnet 27, and the second electromagnet 27 and the speed reduction roller 33 brake the rotor on the motor according to the above description, the rotor on the motor is automatically braked, and the rotor on the motor is prevented from continuously rotating for a certain time under the inertia effect.
Example 2
On the basis of embodiment 1, referring to fig. 1, fig. 2, fig. 6, fig. 7 and fig. 8, the magnetic reinforcing device further includes a magnetic reinforcing mechanism 4, the magnetic reinforcing mechanism 4 includes a support frame 41, a third electromagnet 42, an expansion link 43, a first spring 44, a third armature 45 and a button 46, the support frame 41 is connected to the front and rear sides of the left middle portion of the mounting frame 1, the third electromagnet 42 is installed on the lower portion of the support frame 41, the third electromagnet 42 is used for performing electromagnetic braking on a rotor on the motor, the two third electromagnets 42 are located inside the mounting frame 1, the three expansion links 43 are connected to the left and right sides of the middle portion inside the mounting frame 1, the third armatures 45 are connected between the inner sides of the three expansion links 43 on the left and right sides, the third armatures 45 are attracted to the second electromagnet 27, the six expansion links 43 are sleeved with the first spring 44, two ends of the first spring 44 are respectively connected to the expansion link 43 and the third armature 45, the button 46 is installed on the front side of the middle portion inside the mounting frame 1, the button 46 is electrically connected to the two third electromagnets 42, and the third armature 45 on the right side can move leftward to press the button 46.
When the second electromagnet 27 is powered on to generate electromagnetic attraction, the second electromagnet 27 adsorbs the third armature 45 to move inwards, the telescopic rod 43 extends, the first spring 44 is stretched, the third armature 45 moves inwards to press the button 46, and the button 46 controls the third electromagnet 42 to start, so that the third electromagnet 42 generates electromagnetic attraction to further electromagnetically brake the rotor on the motor, and thus the rotor on the motor is braked, when the second electromagnet 27 is powered off and loses the electromagnetic attraction, the third armature 45 is driven to move outwards to reset under the reset action of the first spring 44, the telescopic rod 43 is restored accordingly, the third armature 45 is separated from the button 46, and the third electromagnet 42 is turned off.
Referring to fig. 1, fig. 2 and fig. 9, still including conductor heat dissipation mechanism 5, conductor heat dissipation mechanism 5 is including fan 51 and guide duct 52, and fan 51 is installed at the 1 top of installing frame, and fan 51 is used for blowing heat dissipation to installing frame 1 inside, and the intercommunication has four guide ducts 52 between fan 51 and the 1 top of installing frame, and the top right side of installing frame 1 is opened there is the louvre.
Starting the fan 51, the fan 51 blows air to the inside of the installation frame 1 through the air guide pipe 52 for heat dissipation, the gas inside the installation frame 1 is discharged through the heat dissipation holes in the installation frame 1, the internal temperature of the installation frame 1 is prevented from being high, the current is reduced, the magnetic fields of the first electromagnet 21, the second electromagnet 27 and the third electromagnet 42 are indirectly influenced, and when the fan 51 is not needed, the fan 51 is closed.
Refer to fig. 1, fig. 2, fig. 10, fig. 11 and fig. 12, still including being used for carrying out the protection mechanism 6 that protects to the junction box 28, protection mechanism 6 is including closing lid 61, stopper 62, second spring 63 and card pearl 64, 1 right part below of installing frame is connected with two stoppers 62, two stoppers 62 are symmetrical setting from front to back, sliding connection has the lid 61 of closing between two stoppers 62, it is used for the junction box 28 to protect to close lid 61, close lid 61 and cover the junction box 28, it has three recess to close lid 61 left side division, the electric wire passes the recess that closes lid 61 and is connected with the junction box 28, it is connected with card pearl 64 all to close the sliding connection in both sides around the left part in the lid 61, card pearl 64 bottom all with close and be connected with second spring 63 between the lid 61, the equal front and back symmetry division of the left and right sides in the bottom of installing frame has the draw-in groove around of installing frame, card pearl 64 blocks in the left draw-in the installing frame 1.
Move closing cover 61 to the right, expose wire frame 28, closing cover 61 and driving second spring 63 and card pearl 64 to move to the right, installing frame 1 extrudes card pearl 64 downwards, second spring 63 is compressed, make card pearl 64 break away from left draw-in groove on installing frame 1, when card pearl 64 moves to the right and contacts with the draw-in groove on the right side on installing frame 1, and then drive card pearl 64 to move upwards under the effect that second spring 63 resets and block in the draw-in groove on the right side on installing frame 1, can connect the both ends of electric wire on wire frame 28 and motor respectively, and with the electric wire card in the recess of closing cover 61, move closing cover 61 left afterwards, cover wire frame 28, protect wire frame 28, prevent that wire frame 28 from being damaged by external influence, close cover 61 and drive second spring 63 and card pearl 64 to move left, installing frame 1 extrudes card pearl 64 downwards, second spring 63 is compressed, make card pearl 64 break away from the draw-in groove on the right side on installing frame 1, when card pearl 64 moves left to left draw-in the draw-in groove on installing frame 1 left, and then drive the card pearl to move upwards through spacing in closing cover 64, thus carry out the draw-in installing frame 1.
Referring to fig. 1, fig. 2 and fig. 13, the electromagnetic isolation device further includes a magnetic isolation mechanism 7, the magnetic isolation mechanism 7 includes an isolation plate 71 and fixed blocks 72, the fixed blocks 72 are connected to the left and right sides of the middle portion in the installation frame 1, the isolation plate 71 is connected between the two fixed blocks 72, the isolation plate 71 is used for isolating a magnetic field generated by the upper portion of the second electromagnet 27, and the isolation plate 71 is sleeved on the upper portion of the second electromagnet 27.
The magnetic field generated at the upper part of the second electromagnet 27 is blocked by the partition plate 71, and the second electromagnet 27 is prevented from being electrified to generate electromagnetic attraction to adsorb the first armature 22.
While the disclosure has been described with respect to a limited number of embodiments, those skilled in the art, having benefit of this disclosure, will appreciate that various other embodiments can be devised which do not depart from the scope of the invention as disclosed herein. Accordingly, the scope of the invention should be limited only by the attached claims.

Claims (7)

1. An electromagnetic switch capable of automatically braking comprises a mounting frame (1) and an electromagnetic switch (11), wherein the mounting frame (1) is mounted on the left side of the electromagnetic switch (11), and is characterized by further comprising a conductor block (25), a second electromagnet (27), a speed reduction roller (33), a magnetic attraction triggering mechanism (2) and a buffering speed reduction mechanism (3), the magnetic attraction triggering mechanism (2) for electromagnetically braking a rotor on a motor is arranged on the inner side of the right part of the mounting frame (1), the left part of the magnetic attraction triggering mechanism (2) is connected with the conductor block (25), the second electromagnet (27) is mounted on the inner side of the left part of the mounting frame (1), the conductor block (25) is connected with an external power supply through an electric wire, the magnetic attraction triggering mechanism (2) comprises a first electromagnet (21), a first armature (22), a seesaw (23), a sliding sleeve (24) and a wiring frame (28), the first electromagnet (21) is mounted on the inner side of the right part of the mounting frame (1), the inner side of the right part of the mounting frame (1) is connected with a sliding type first armature (22), the first armature (22) is located above the first armature (21), and the upper part of the first armature (22) is connected with the rotary type electromagnet (22), and the rotary type electromagnet (22), sliding sleeves (24) are connected with a seesaw (23) in a sliding mode, the left end of the seesaw (23) is connected with a conductor block (25), a wiring frame (28) is installed at the bottom of a first electromagnet (21), the wiring frame (28) penetrates through an installation frame (1), the first electromagnet (21) is connected with a power supply of an external motor through the wiring frame (28) through an electric wire, when the motor is closed, the first electromagnet (21) is powered off and loses electromagnetic attraction, the conductor block (25) rotates downwards due to gravity and is in contact with a second electromagnet (27), the second electromagnet (27) is powered on to generate electromagnetic attraction to carry out electromagnetic braking on a rotor on the motor, a buffering speed reducing mechanism (3) used for carrying out resistance braking on the rotor on the motor is arranged on the inner side of the lower portion of the installation frame (1), a speed reducing roller (33) is rotatably connected to the buffering speed reducing mechanism (3), the second electromagnet (27) is powered on to generate electromagnetic attraction to adsorb the buffering speed reducing mechanism (3) to move upwards, the speed reducing mechanism (3) drives the speed reducing roller (33) to move upwards to move to be in contact with the rotor of the motor, and braking on the rotor on the motor by utilizing resistance.
2. The electromagnetic switch capable of automatically braking as claimed in claim 1, further comprising a spring (26), wherein the middle of the inner upper side of the mounting frame (1) is connected with the spring (26) for buffering the seesaw (23), and the lower end of the spring (26) is in contact with the left part of the seesaw (23).
3. The electromagnetic switch capable of automatically braking as claimed in claim 1, wherein the buffering and decelerating mechanism (3) comprises a sliding rod (31), a guide frame (32) and a second armature (34), the sliding rod (31) is connected to the inner side of the lower portion of the mounting frame (1), the guide frames (32) are connected between the sliding rods (31) on the left side and the right side in a sliding manner, the lower portions of the guide frames (32) are rotatably connected with a decelerating roller (33), the second armature (34) is connected between the front side and the rear side of the top of the guide frame (32), the second armature (34) is attracted to the second electromagnet (27), the second electromagnet (27) is electrically attracted to the second armature (34) to move upwards, and the second armature (34) drives the decelerating roller (33) to move upwards through the guide frame (32) to brake a rotor on the motor.
4. The electromagnetic switch capable of automatically braking as claimed in claim 1, characterized by further comprising a magnetic reinforcing mechanism (4) for further braking a rotor on the motor, the magnetic reinforcing mechanism (4) comprises a support frame (41), a third electromagnet (42), a telescopic rod (43), a first spring (44), a third armature (45) and a button (46), the support frame (41) is connected to the front and rear sides of the left middle portion of the mounting frame (1), the third electromagnet (42) for electromagnetically braking the rotor on the motor is installed on the lower portion of the support frame (41), the third electromagnet (42) is located inside the mounting frame (1), the telescopic rods (43) are connected to the left and right sides of the middle portion of the mounting frame (1), the third armature (45) is connected between the inner sides of the telescopic rods (43) on the left and right sides, the third armature (45) is attracted to the second electromagnet (27), the first spring (44) is sleeved on the telescopic rods (43), two ends of the first spring (44) are respectively connected to the telescopic rods (43) and the third armature (45), the third armature (45) is installed on the inner side of the mounting frame (1), the front side of the mounting frame is connected to the button (46), the third armature (46) and the button (46) is electrically connected to the left side, the electromagnet (46) via the electromagnet, the button (46), and the third armature (45) presses a button (46) to control the third electromagnet (42) to start so as to electromagnetically brake the rotor on the motor.
5. The electromagnetic switch capable of automatically braking as claimed in claim 1, further comprising a conductor heat dissipation mechanism (5) for conducting blowing heat dissipation inside the installation frame (1), wherein the conductor heat dissipation mechanism (5) comprises a fan (51) and an air guide pipe (52), the fan (51) for conducting blowing heat dissipation inside the installation frame (1) is installed at the top of the installation frame (1), the air guide pipe (52) is communicated between the fan (51) and the top of the installation frame (1), a heat dissipation hole is formed in the right side of the top of the installation frame (1), the fan (51) conducts blowing heat dissipation inside the installation frame (1) through the air guide pipe (52), and air inside the installation frame (1) is exhausted through the heat dissipation hole in the installation frame (1).
6. The electromagnetic switch capable of automatically braking as claimed in claim 1, further comprising a protection mechanism (6) for protecting the junction box (28), wherein the protection mechanism (6) comprises a closing cover (61), a limiting block (62), a second spring (63) and a clamping bead (64), the limiting block (62) is connected to the lower side of the right portion of the mounting frame (1), the closing cover (61) for protecting the junction box (28) is slidably connected between the limiting blocks (62), the closing cover (61) covers the junction box (28), three grooves are formed in the left side of the closing cover (61), the electric wire passes through the groove of the closing cover (61) and is connected with the junction box (28), the clamping bead (64) is slidably connected to the front and rear sides of the front and rear portions of the left portion of the closing cover (61), the second spring (63) is connected between the bottom of the clamping bead (64) and the closing cover (61), clamping grooves are symmetrically formed in the front and rear sides of the left and rear sides of the bottom of the mounting frame (1), the clamping bead (64) are clamped in the left inner cover (61) of the mounting frame (1) to limit the left inner cover (61), the junction box (28) to move towards the left, and the junction box (28) is exposed, and the junction box (28) moves towards the junction box (28).
7. The electromagnetic switch capable of automatically braking as claimed in claim 1, further comprising a magnetic isolation mechanism (7) for isolating the magnetic force generated by the upper portion of the second electromagnet (27), wherein the magnetic isolation mechanism (7) comprises an isolation plate (71) and fixed blocks (72), the fixed blocks (72) are connected to the left and right sides of the middle portion in the mounting frame (1), the isolation plate (71) for isolating the magnetic force generated by the upper portion of the second electromagnet (27) is connected between the fixed blocks (72), and the isolation plate (71) is sleeved on the upper portion of the second electromagnet (27).
CN202211417296.8A 2022-11-14 2022-11-14 Electromagnetic switch capable of automatically braking Active CN115602464B (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2562340Y (en) * 2002-08-16 2003-07-23 江苏金飞达电动工具有限公司 Electromagnetic switches
JP2013249845A (en) * 2013-07-16 2013-12-12 Denso Corp Electromagnetic switch device
DE102018008899A1 (en) * 2018-11-13 2020-05-14 Chr. Mayr Gmbh + Co. Kg Brake with an integral damper structure
CN213716826U (en) * 2020-12-28 2021-07-16 浙江长隆电气有限公司 Electromagnetic switch with brake function
CN216749672U (en) * 2021-10-28 2022-06-14 高邮市电塑厂 Electromagnetic switch with brake function
CN217114245U (en) * 2022-04-22 2022-08-02 乐清市齐佑电子有限公司 Electromagnetic switch capable of being switched on and off rapidly

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3594522B1 (en) * 2018-07-13 2021-06-30 Ratier-Figeac SAS Rotor brake and method for braking a rotor

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2562340Y (en) * 2002-08-16 2003-07-23 江苏金飞达电动工具有限公司 Electromagnetic switches
JP2013249845A (en) * 2013-07-16 2013-12-12 Denso Corp Electromagnetic switch device
DE102018008899A1 (en) * 2018-11-13 2020-05-14 Chr. Mayr Gmbh + Co. Kg Brake with an integral damper structure
CN213716826U (en) * 2020-12-28 2021-07-16 浙江长隆电气有限公司 Electromagnetic switch with brake function
CN216749672U (en) * 2021-10-28 2022-06-14 高邮市电塑厂 Electromagnetic switch with brake function
CN217114245U (en) * 2022-04-22 2022-08-02 乐清市齐佑电子有限公司 Electromagnetic switch capable of being switched on and off rapidly

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