CN112687493B - Over-temperature protection device and protection method of electronic speed regulator - Google Patents
Over-temperature protection device and protection method of electronic speed regulator Download PDFInfo
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- CN112687493B CN112687493B CN202011454547.0A CN202011454547A CN112687493B CN 112687493 B CN112687493 B CN 112687493B CN 202011454547 A CN202011454547 A CN 202011454547A CN 112687493 B CN112687493 B CN 112687493B
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Abstract
The invention discloses an over-temperature protection device of an electronic speed regulator and a protection method thereof, relates to the related field of the electronic speed regulator, and aims to solve the problems that the conventional over-temperature protection device is automatically powered off and protected after the temperature is too high, and a manual reset switch is needed after the temperature is recovered to be normal, so that the process is complicated. The inner cavity is arranged in the mounting shell, the fixing frame is arranged in the middle of the upper end in the mounting shell, the moving frame is arranged at the lower end of the fixing frame, buffer springs are arranged on two sides between the moving frame and the upper end face in the mounting shell, the temperature sensing air bag is arranged in the middle of the moving frame, the pressing plate is arranged at the lower end of the moving frame, the conducting strip fixing unit is fixedly connected to the lower end of the upper connecting block, the lower connecting block is fixedly connected to the middle of the lower end of the conducting strip fixing unit, and the supporting spring is arranged between the lower connecting block and the lower end in the mounting shell.
Description
Technical Field
The invention relates to the related field of electronic speed regulators, in particular to an over-temperature protection device and a protection method of an electronic speed regulator.
Background
The Electronic Speed regulator is called an Electronic Speed regulator, and is called ESC for short. The speed regulator is electrically integrated, amplified and hydraulically amplified, and the rotation speed of motor is regulated based on control signal. The electronic speed regulator generally has a power supply output function, namely, a voltage of about 5V is output between a positive electrode and a negative electrode of a signal wire, the signal wire supplies power to a receiver, and the receiver supplies power to control equipment such as a steering engine.
Most of the conventional over-temperature protection devices perform power-off protection after detecting that the temperature is too high through a temperature detection probe, but after the temperature is reduced to normal temperature, a manual reset switch is needed, so that the over-temperature protection device connects the battery module with the motor again to realize normal operation of the motor; therefore, the market urgently needs to develop an over-temperature protection device of the electronic speed regulator and a protection method thereof to help people to solve the existing problems.
Disclosure of Invention
The invention aims to provide an over-temperature protection device of an electronic speed regulator and a protection method thereof, and aims to solve the problems that the conventional over-temperature protection device in the background art is automatically powered off and protected after the temperature is too high, but the switch needs to be manually reset after the temperature is recovered to be normal, and the process is complicated.
In order to achieve the purpose, the invention provides the following technical scheme: an over-temperature protection device of an electronic speed regulator comprises an installation shell, wherein an inner cavity is arranged in the installation shell, a fixed frame is arranged in the middle of the upper end in the installation shell, a movable frame is arranged at the lower end of the fixed frame, buffer springs are arranged on two sides between the movable frame and the upper end face in the installation shell, a temperature sensing air bag is arranged in the middle of the inner part of the movable frame, a pressing plate is arranged at the lower end of the movable frame, an upper connecting block is fixedly connected to the lower end of the pressing plate, a connecting conducting strip fixing unit is fixedly connected to the lower end of the upper connecting block, a lower connecting block is fixedly connected to the middle of the lower end of the connecting strip fixing unit, a supporting spring is arranged between the lower connecting block and the lower end face in the installation shell, and two ends of the supporting spring are respectively and fixedly connected with the lower end face of the lower connecting block and the lower end face in the installation shell, the supporting spring is internally provided with a telescopic middle rod and a telescopic sleeve, the telescopic middle rod is positioned at the upper end of the telescopic sleeve, the telescopic middle rod is in telescopic connection with the telescopic sleeve, a first connecting conducting strip is arranged in the middle of one side of the connecting conducting strip fixing unit, a second connecting conducting strip is arranged in the middle of the other side of the connecting conducting strip fixing unit, the first connecting conducting strip and the second connecting conducting strip are integrally formed, the first connecting conducting strip and the second connecting conducting strip are connected with the conducting strip fixing unit in a penetrating manner, a first movable contact is arranged on the outer side of the lower end of the first connecting conducting strip, a first fixed contact is arranged at the upper end of the first movable contact, a first input conducting strip is arranged at the upper end of the first fixed contact, the other end of the second connecting conducting strip is connected with a connecting branch conducting strip, the number of the connecting branch conducting strips are three, the upper ends of the connecting branch conducting strips are two, the lower ends of the connecting branch conducting strips are arranged at the upper end and the upper end of the connecting branch conducting strip The movable contact is provided with a second movable contact, a third fixed contact is arranged at the upper end of the second movable contact, and a first output conducting strip is arranged at the upper end of the third fixed contact.
Preferably, the mounting shell is internally provided with a second input conductive sheet along the lower end of the first input conductive sheet, a second fixed contact is arranged on one side of the upper end of the second input conducting strip along the lower end of the first movable contact, the mounting shell is internally provided with a second output conducting strip along the lower end of the connecting branch conducting strip, one side of the upper end of the second output conducting strip is provided with a fourth fixed contact along the lower end of the second movable contact, three groups of the first output conducting strip and the third fixed contact are arranged, the upper ends of the two lower end first output conducting strips are provided with insulating plates, the distance between the two lower end insulating plates and the upper end corresponding to the lower end surface of the connecting branch conducting strip is greater than the distance between the lower end first movable contact and the second fixed contact, and the distance between the lowest end second movable contact and the fourth fixed contact is equal to the distance between the lower end first movable contact and the second fixed contact.
Preferably, the middle of installation casing up end is provided with first ventilation groove, and first ventilation groove is provided with a plurality ofly, installation casing up end is provided with the sliding tray along the both sides in first ventilation groove, installation casing up end is provided with first mounting hole along the both sides of sliding tray.
Preferably, the centre of installation casing upper end is provided with the ventilation regulating plate, be provided with the second ventilation groove on the ventilation regulating plate, the second ventilation groove is provided with a plurality ofly, and is a plurality of the second ventilation groove is with a plurality of the shape in first ventilation groove is coincide, adjacent two distance between the second ventilation groove is greater than the width in second ventilation groove, the both sides fixedly connected with slip strip in second ventilation groove is followed to the ventilation regulating plate lower extreme, and the ventilation regulating plate slides in the slip groove of installation casing through the slip strip, the terminal surface is provided with second mounting hole and third mounting hole along the both sides of slip strip under the ventilation regulating plate, and the second mounting hole is located the one end of third mounting hole.
Preferably, the fixed frame comprises an installation frame and a third vertical frame, the installation frame is located on the outer side of one end of the third vertical frame, the installation frame is fixed with the inner wall of the installation shell through screws, and an embedded groove is formed in the third vertical frame.
Preferably, the movable frame comprises a first vertical frame, a middle horizontal frame and a second vertical frame, the first vertical frame is located at the upper end of the outer side of the middle horizontal frame, the second vertical frame is located on the inner side of the middle horizontal frame, the first vertical frame, the middle horizontal frame and the second vertical frame are fixedly connected with each other, the lower end face of the second vertical frame is sealed, the upper end of the first vertical frame is fixedly connected with a limit frame, the first vertical frame slides in a limiting mode in the embedded groove through the limit frame, a middle cavity is formed in the second vertical frame, and the temperature sensing air bag is located inside the middle cavity.
Preferably, the connection conducting strip fixing unit is provided with fixing arc plates, a connection channel is formed between the fixing arc plates, and the height of the connection channel is equal to the height of the first connection conducting strip and the second connection conducting strip.
Preferably, one side of the first input conducting strip is connected with a first input wire along the outer side of the installation shell, one side of the second input conducting strip is connected with a second input wire along the outer side of the installation shell, one side of the first output conducting strip is connected with a first output wire along the outer side of the installation shell, and one side of the second output conducting strip is connected with a second output wire along the outer side of the installation shell.
Preferably, the four corners of the upper end and the lower end of the mounting shell are provided with I-shaped mounting pieces, and the I-shaped mounting pieces are connected with the mounting shell through screws.
A method of protection comprising the steps of:
the method comprises the following steps: sliding the ventilation adjusting plate to align a first ventilation groove on the mounting shell with a second ventilation groove on the ventilation adjusting plate, fixing the ventilation adjusting plate by passing a screw through the first mounting hole and the second mounting hole, and communicating the first ventilation groove and the second ventilation groove with the middle cavity;
step two: the buffer spring in the middle cavity senses the external temperature through the air entering the first ventilation groove and the second ventilation groove;
step three: when the temperature rises, the temperature sensing air bag expands to extrude the movable frame, the movable frame moves downwards along the fixed frame under the action of the buffer spring until the movable frame is attached to the pressing plate and drives the pressing plate to move downwards, the first connecting conducting strip and the second connecting conducting strip are driven to move downwards by driving the connecting conducting strip fixing unit, a first movable contact at the upper end of the first connecting conducting strip is far away from a first fixed contact of the first input conducting strip, a second movable contact on a connecting branch conducting strip connected with the second connecting conducting strip is far away from a third fixed contact on the first output conducting strip, and the first input conducting strip and the first output conducting strip are disconnected for power-off protection;
step four: when a first movable contact at the upper end of a first connecting conducting strip is far away from a first fixed contact of a first input conducting strip, a first movable contact at the lower end of the first connecting conducting strip gradually approaches and is attached to a second fixed contact on a second input conducting strip, a second movable contact on a connecting sub conducting strip connected with a second connecting conducting strip is far away from a third fixed contact on a first output conducting strip, a second movable contact at the lower end of the connecting sub conducting strip at the lowest end gradually approaches and is attached to a fourth fixed contact on a second output conducting strip, the second input conducting strip is communicated with a second output conducting strip, the second input conducting strip is connected with a battery module, and the second output conducting strip is connected with a heat dissipation driving mechanism to dissipate heat;
step five: the temperature descends gradually under the action of the heat dissipation driving mechanism until the temperature is recovered to normal, the temperature sensing air bag is continuously reduced when the temperature descends, the connecting conducting strip fixing unit drives the first connecting conducting strip and the second connecting conducting strip to reset gradually under the action of the supporting spring, the first movable contact at the upper end of the first connecting conducting strip is gradually close to and attached to the first fixed contact of the first input conducting strip, the second movable contact on the connecting branch conducting strip connected with the second connecting conducting strip is gradually close to and attached to the third fixed contact on the first output conducting strip, the first input conducting strip and the first output conducting strip are communicated through the first connecting conducting strip and the second connecting conducting strip, and the motor recovers to work.
Compared with the prior art, the invention has the beneficial effects that:
1. in the invention, a temperature sensing air bag is arranged at the upper end of an inner cavity of an installation shell through a fixed frame and a movable frame, when the temperature rises, the temperature sensing air bag expands to extrude the movable frame, the movable frame moves downwards along the fixed frame under the action of a buffer spring, when the temperature sensing of the temperature sensing air bag is too high, the movable frame moves downwards until the movable frame is attached to a pressure plate and drives the pressure plate to move downwards, so that a first connecting conducting strip and a second connecting conducting strip are driven to move downwards, a first movable contact of the first connecting conducting strip is far away from a first fixed contact of a first input conducting strip, and a second movable contact on a connecting branch conducting strip connected with the second connecting conducting strip is far away from a third fixed contact on a first output conducting strip, so that the first input conducting strip is disconnected from the first output conducting strip, and the power-off protection is realized; when the temperature gradually decreases until the temperature returns to normal, the temperature sensing air bag is also continuously shrunk, the connecting conducting strip fixing unit drives the first connecting conducting strip and the second connecting conducting strip to gradually reset under the action of the supporting spring, the first movable contact of the first connecting conducting strip is gradually close to and attached to the first fixed contact of the first input conducting strip, the second movable contact of the connecting branch conducting strip connected with the second connecting conducting strip is gradually close to and attached to the third fixed contact of the first output conducting strip, the first input conducting strip and the first output conducting strip are connected through the first connecting conducting strip and the second connecting conducting strip, the circuits are communicated, and the motor returns to work; the power-off protection that the temperature rises and the line connection process that the temperature descends do not need artifical the participation, have solved present excess temperature protection device automatic power-off protection behind the high temperature, but need artifical reset switch, the comparatively loaded down with trivial details problem of process after the temperature resumes normally.
2. In the invention, the lower end of a first connecting conducting strip is also provided with a first movable contact, the lower end of a connecting branch conducting strip is also provided with a second movable contact, when the temperature of the connecting branch conducting strip is overhigh, a connecting conducting strip fixing unit drives the first connecting conducting strip and the second connecting conducting strip to descend, the first movable contact at the upper end of the first connecting conducting strip is far away from a first fixed contact of a first input conducting strip, the first movable contact at the lower end of the first connecting conducting strip is gradually close to and jointed with a second fixed contact of a second input conducting strip, the second movable contact on the connecting branch conducting strip connected with the second connecting conducting strip is far away from a third fixed contact on a first output conducting strip, the second movable contact at the lower end of the connecting branch conducting strip is gradually close to and jointed with a fourth fixed contact on a second output conducting strip, the second input conducting strip is communicated with the second output conducting strip, and the second input is connected with a battery module, the second output conducting strip is connected with a heat dissipation driving mechanism such as a heat dissipation fan and the like, and is connected with the heat dissipation mechanism while being disconnected with the motor, so that the temperature reduction speed is increased.
3. In the invention, a first ventilation groove is arranged in the middle of the upper end surface of the mounting shell, sliding grooves are arranged on two sides of the first ventilation groove, and a sliding strip of the ventilation adjusting plate can slide in the sliding grooves. When the over-temperature protection device is installed in equipment, the ventilation adjusting plate is slid to enable the first ventilation groove to be aligned with the second ventilation groove, the ventilation adjusting plate is fixed by screws penetrating through the first mounting hole and the second mounting hole, and the first ventilation groove and the second ventilation groove are communicated with the middle cavity, so that a temperature sensing air bag placed in the middle cavity can normally sense the external temperature; when this excess temperature protection device storage perhaps did not use, the ventilation regulating plate slides, makes first ventilation groove and second ventilation groove shelter from each other, passes first mounting hole and third mounting hole through the screw and fixes the ventilation regulating plate, installs relative sealing between casing and the ventilation regulating plate this moment, reduces the possibility that external dust got into.
Drawings
Fig. 1 is a schematic structural view of an over-temperature protection device of an electronic governor according to the present invention;
fig. 2 is a schematic view of the internal structure of an over-temperature protection device of an electronic governor according to the present invention;
FIG. 3 is a schematic structural view of the mounting housing of the present invention;
FIG. 4 is a schematic view of the construction of the ventilation adjusting plate of the present invention;
FIG. 5 is a schematic structural diagram of a connecting conductive sheet fixing unit according to the present invention;
FIG. 6 is a schematic structural diagram of a moving frame according to the present invention;
fig. 7 is a schematic structural diagram of the fixing frame of the present invention.
In the figure: 1. installing a shell; 2. an inner cavity; 3. an I-shaped mounting member; 4. a ventilation adjusting plate; 5. a first input wire; 6. a second input wire; 7. a first output wire; 8. a second output wire; 9. a fixed frame; 10. moving the frame; 11. a buffer spring; 12. a temperature-sensitive air bag; 13. pressing a plate; 14. an upper connecting block; 15. connecting the conducting strip fixing unit; 16. a lower connecting block; 17. a telescopic middle rod; 18. a telescopic sleeve; 19. a support spring; 20. a first connecting conductive sheet; 21. a first movable contact; 22. a first input conductive sheet; 23. a first stationary contact; 24. a second input conductive sheet; 25. a second stationary contact; 26. a second connecting conductive sheet; 27. connecting the sub-conducting strips; 28. a second movable contact; 29. a first output conductive sheet; 30. a third stationary contact; 31. an insulating plate; 32. a second output conductive sheet; 33. a fourth stationary contact; 34. a first vent slot; 35. a sliding groove; 36. a first mounting hole; 37. a second vent groove; 38. a slide bar; 39. a second mounting hole; 40. a third mounting hole; 41. a connecting channel; 42. fixing the arc-shaped plate; 43. a limiting frame; 44. a first vertical frame; 45. a middle horizontal frame; 46. a second vertical frame; 47. a middle cavity; 48. installing a frame; 49. a third vertical frame; 50. and a groove is embedded.
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.
Referring to fig. 1-7, an embodiment of the present invention is shown: an over-temperature protection device of an electronic governor comprises an installation shell 1, an inner cavity 2 is arranged in the installation shell 1, a fixed frame 9 is arranged in the middle of the upper end in the installation shell 1, a movable frame 10 is arranged at the lower end of the fixed frame 9, buffer springs 11 are arranged on two sides between the movable frame 10 and the upper end face in the installation shell 1, a temperature sensing air bag 12 is arranged in the middle of the interior of the movable frame 10, a pressing plate 13 is arranged at the lower end of the movable frame 10, an upper connecting block 14 is fixedly connected at the lower end of the pressing plate 13, a connecting conducting strip fixing unit 15 is fixedly connected at the lower end of the upper connecting block 14, a lower connecting block 16 is fixedly connected in the middle of the lower end of the connecting strip fixing unit 15, a supporting spring 19 is arranged between the lower connecting block 16 and the lower end face in the installation shell 1, two ends of the supporting spring 19 are respectively fixedly connected with the lower end face of the lower connecting block 16 and the lower end face in the installation shell 1, the support spring 19 is internally provided with a telescopic middle rod 17 and a telescopic sleeve 18, the telescopic middle rod 17 is positioned at the upper end of the telescopic sleeve 18, the telescopic middle rod 17 is telescopically connected with the telescopic sleeve 18, the middle of one side of the connecting conducting strip fixing unit 15 is provided with a first connecting conducting strip 20, the middle of the other side of the connecting conducting strip fixing unit 15 is provided with a second connecting conducting strip 26, the first connecting conducting strip 20 and the second connecting conducting strip 26 are integrally formed, the first connecting conducting strip 20 and the second connecting conducting strip 26 penetrate through the connecting conducting strip fixing unit 15, the outer side of the upper end and the lower end of the first connecting conducting strip 20 is provided with a first movable contact 21, the upper end of the first movable contact 21 at the upper end is provided with a first fixed contact 23, the upper end of the first fixed contact 23 is provided with a first input conducting strip 22, the other end of the second connecting conducting strip 26 is connected with a connecting branch conducting strip 27, the connecting branch 27 is provided with three connecting branches, the upper ends of the two upper connecting sub conductive sheets 27 and the upper and lower ends of the lower connecting sub conductive sheet 27 are provided with second movable contacts 28, the upper ends of the second movable contacts 28 are provided with third fixed contacts 30, and the upper ends of the third fixed contacts 30 are provided with first output conductive sheets 29.
Further, a second input conducting strip 24 is arranged inside the mounting shell 1 along the lower end of the first input conducting strip 22, a second fixed contact 25 is arranged on one side of the upper end of the second input conducting strip 24 along the lower end of the first movable contact 21, a second output conducting strip 32 is arranged inside the mounting shell 1 along the lower end of the connecting and dividing conducting strip 27, a fourth fixed contact 33 is arranged on one side of the upper end of the second output conducting strip 32 along the lower end of the second movable contact 28, three groups of the first output conducting strips 29 and the third fixed contact 30 are arranged, an insulating plate 31 is arranged on the upper ends of the two lower first output conducting strips 29, the distance between the two lower insulating plates 31 and the lower end surface of the upper end corresponding connecting and dividing conducting strip 27 is greater than the distance between the first movable contact 21 and the second fixed contact 25, and the distance between the second movable contact 28 and the fourth fixed contact 33 at the lowest end is equal to the distance between the first movable contact 21 and the second fixed contact 25 at the lower end.
Further, the middle of the upper end surface of the installation shell 1 is provided with a first ventilation groove 34, the first ventilation grooves 34 are provided in a plurality, the upper end surface of the installation shell 1 is provided with sliding grooves 35 along two sides of the first ventilation grooves 34, and the upper end surface of the installation shell 1 is provided with first installation holes 36 along two sides of the sliding grooves 35.
Furthermore, a ventilation adjusting plate 4 is arranged in the middle of the upper end of the mounting shell 1, a second ventilation groove 37 is formed in the ventilation adjusting plate 4, a plurality of second ventilation grooves 37 are formed in the second ventilation grooves 37, the shapes of the second ventilation grooves 37 are matched with those of the first ventilation grooves 34, the distance between every two adjacent second ventilation grooves 37 is larger than the width of each second ventilation groove 37, sliding strips 38 are fixedly connected to the lower end of the ventilation adjusting plate 4 along two sides of each second ventilation groove 37, the ventilation adjusting plate 4 slides in the sliding grooves 35 of the mounting shell 1 through the sliding strips 38, second mounting holes 39 and third mounting holes 40 are formed in the lower end face of the ventilation adjusting plate 4 along two sides of each sliding strip 38, and the second mounting holes 39 are located at one end of the third mounting holes 40; when the over-temperature protection device is installed in equipment, the ventilation adjusting plate 4 is slid to enable the first ventilation groove 34 to be aligned with the second ventilation groove 37, the ventilation adjusting plate 4 is fixed by passing a screw through the first mounting hole 36 and the second mounting hole 39, air with temperature is blown into the first ventilation groove 34 and the second ventilation groove 37 at the moment, and the temperature sensing air bag 12 senses the external temperature normally; when the over-temperature protection device is stored or not used, the ventilation adjusting plate 4 is slid to shield the first ventilation groove 34 and the second ventilation groove 37 from each other, the ventilation adjusting plate 4 is passed through the first mounting hole 36 and the third mounting hole 40 by screws, and the mounting case 1 and the ventilation adjusting plate 4 are relatively sealed at this time.
Further, the fixing frame 9 includes a mounting frame 48 and a third vertical frame 49, the mounting frame 48 is located at the outer side of one end of the third vertical frame 49, the mounting frame 48 is fixed to the inner wall of the mounting casing 1 through screws, and an embedded groove 50 is provided in the third vertical frame 49.
Further, the moving frame 10 includes a first vertical frame 44, a middle horizontal frame 45 and a second vertical frame 46, the first vertical frame 44 is located at the upper end of the outer side of the middle horizontal frame 45, the second vertical frame 46 is located at the inner side of the middle horizontal frame 45, the first vertical frame 44, the middle horizontal frame 45 and the second vertical frame 46 are fixedly connected between adjacent, the lower end face of the second vertical frame 46 is closed, the upper end of the first vertical frame 44 is fixedly connected with a limit frame 43, the first vertical frame 44 slides in the embedded groove 50 in a limiting manner through the limit frame 43, a middle cavity 47 is formed inside the second vertical frame 46, and the temperature sensing airbag 12 is located inside the middle cavity 47.
Further, be provided with fixed arc 42 on the connection conducting strip fixed unit 15, connect conducting strip fixed unit 15 and wholly adopt insulating material, form interface channel 41 between the fixed arc 42, interface channel 41's height equals the height of first connection conducting strip 20 and second connection conducting strip 26, and fixed arc 42 is fixed to first connection conducting strip 20 and the centre gripping of second connection conducting strip 26, guarantees that the connection of first connection conducting strip 20 and second connection conducting strip 26 is stable.
Further, one side of the first input conducting strip 22 is connected with a first input wire 5 along the outer side of the mounting housing 1, the first input conducting strip 22 is electrically connected with the first input wire 5, one side of the second input conducting strip 24 is connected with a second input wire 6 along the outer side of the mounting housing 1, the second input conducting strip 24 is electrically connected with the second input wire 6, one side of the first output conducting strip 29 is connected with a first output wire 7 along the outer side of the mounting housing 1, the first output conducting strip 29 is electrically connected with the first output wire 7, one side of the second output conducting strip 32 is connected with a second output wire 8 along the outer side of the mounting housing 1, the second output conducting strip 32 is electrically connected with the second output wire 8, the first input conducting strip 22 is connected with a battery module through the first input wire 5, the second input conducting strip 24 is connected with the battery module through the second input wire 6, the first output conducting strip 29 is connected with the motor through a first output wire 7, and the second output conducting strip 32 is connected with the heat dissipation driving mechanism through a second output wire 8.
Furthermore, the four corners of the upper and lower ends of the mounting shell 1 are provided with I-shaped mounting pieces 3, and the I-shaped mounting pieces 3 are connected with the mounting shell 1 through screws.
In the scheme, the connected motors are assumed to be brushless motors, so that three output lines are arranged, and if the connected motors are brush motors, the number of the output lines and the number of the connecting structures are correspondingly reduced by one; the scheme omits the connection of signal wires, and is the same as the current connection.
A method of protection comprising the steps of:
the method comprises the following steps: sliding the ventilation adjusting plate 4 so that the first ventilation groove 34 on the mounting case 1 is aligned with the second ventilation groove 37 on the ventilation adjusting plate 4, fixing the ventilation adjusting plate 4 by passing screws through the first mounting hole 36 and the second mounting hole 39, the first ventilation groove 34 and the second ventilation groove 37 communicating with the intermediate chamber 47;
step two: the buffer spring 11 in the middle cavity 47 senses the external temperature through the air entering from the first ventilating slot 34 and the second ventilating slot 37;
step three: when the temperature rises, the temperature sensing air bag 12 expands to extrude the movable frame 10, the movable frame 10 moves downwards along the fixed frame 9 under the action of the buffer spring 11 until the movable frame 10 is attached to the pressing plate and drives the pressing plate 13 to move downwards, the first connecting conductive sheet 20 and the second connecting conductive sheet 26 are driven to move downwards by driving the connecting conductive sheet fixing unit 15, the first movable contact 21 at the upper end of the first connecting conductive sheet 20 is far away from the first fixed contact 23 of the first input conductive sheet 22, the second movable contact 28 on the connecting sub conductive sheet 27 connected with the second connecting conductive sheet 26 is far away from the third fixed contact 30 on the first output conductive sheet 29, and the first input conductive sheet 22 and the first output conductive sheet 29 are disconnected for power-off protection;
step four: while the first movable contact 21 at the upper end of the first connecting conducting strip 20 is far away from the first fixed contact 23 of the first input conducting strip 22, the first movable contact 21 at the lower end of the first connecting conducting strip 20 gradually approaches and is attached to the second fixed contact 25 on the second input conducting strip 24, the second movable contact 28 on the connecting sub conducting strip 27 connected with the second connecting conducting strip 26 is far away from the third fixed contact 30 on the first output conducting strip 29, the second movable contact 28 at the lower end of the lowest connecting sub conducting strip 27 gradually approaches and is attached to the fourth fixed contact 33 on the second output conducting strip 32, the second input conducting strip 24 is communicated with the second output conducting strip 32, the second input conducting strip 24 is connected with a battery module, and the second output conducting strip 32 is connected with a heat dissipation driving mechanism for heat dissipation;
step five: the temperature is gradually reduced under the action of the heat dissipation driving mechanism until the temperature is recovered to normal, the temperature sensing air bag 12 is continuously reduced while the temperature is reduced, the connecting conducting strip fixing unit 15 drives the first connecting conducting strip 20 and the second connecting conducting strip 26 to gradually reset under the action of the supporting spring 19, the first movable contact 21 at the upper end of the first connecting conducting strip 20 is gradually close to and attached to the first fixed contact 23 of the first input conducting strip 22, the second movable contact 28 on the connecting branch conducting strip 27 connected with the second connecting conducting strip 26 is gradually close to and attached to the third fixed contact 30 on the first output conducting strip 29, the first input conducting strip 22 is communicated with the first output conducting strip 29 through the first connecting conducting strip 20 and the second connecting conducting strip 26, and the motor is recovered to work.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (8)
1. An over-temperature protection device of an electronic speed regulator comprises an installation shell (1), and is characterized in that: an inner cavity (2) is arranged in the installation shell (1), a fixed frame (9) is arranged in the middle of the upper end in the installation shell (1), a movable frame (10) is arranged at the lower end of the fixed frame (9), buffer springs (11) are arranged on two sides between the movable frame (10) and the upper end face in the installation shell (1), a temperature sensing air bag (12) is arranged in the middle of the interior of the movable frame (10), a pressing plate (13) is arranged at the lower end of the movable frame (10), an upper connecting block (14) is fixedly connected at the lower end of the pressing plate (13), a conducting plate fixing unit (15) is fixedly connected at the lower end of the upper connecting block (14), a lower connecting block (16) is fixedly connected at the middle of the lower end of the conducting plate fixing unit (15), and a supporting spring (19) is arranged between the lower connecting block (16) and the lower end in the installation shell (1), the two ends of a supporting spring (19) are respectively fixedly connected with the lower end face of a lower connecting block (16) and the lower end face in the installation shell (1), a telescopic middle rod (17) and a telescopic sleeve (18) are arranged in the supporting spring (19), the telescopic middle rod (17) is positioned at the upper end of the telescopic sleeve (18), the telescopic middle rod (17) is telescopically connected with the telescopic sleeve (18), a first connecting conducting strip (20) is arranged in the middle of one side of a connecting conducting strip fixing unit (15), a second connecting conducting strip (26) is arranged in the middle of the other side of the connecting conducting strip fixing unit (15), the first connecting conducting strip (20) and the second connecting conducting strip (26) are integrally formed, the first connecting conducting strip (20) and the second connecting conducting strip (26) are in penetrating connection with the conducting strip fixing unit (15), and a first movable contact point (21) is arranged on the outer side of the upper end and the lower end of the first connecting conducting strip (20), the upper end of the first movable contact (21) is provided with a first fixed contact (23), the upper end of the first fixed contact (23) is provided with a first input conducting strip (22), the other end of the second connecting conducting strip (26) is connected with three connecting and separating conducting strips (27), the upper ends of the upper two connecting and separating conducting strips (27) and the lower ends of the connecting and separating conducting strips (27) are provided with second movable contacts (28), the upper end of the second movable contact (28) is provided with a third fixed contact (30), the upper end of the third fixed contact (30) is provided with a first output conducting strip (29), the fixed frame (9) comprises an installation frame (48) and a third vertical frame (49), the installation frame (48) is positioned at the outer side of one end of the third vertical frame (49), and the installation frame (48) is fixed with the inner wall of the installation shell (1) through screws, be provided with embedded groove (50) in third vertical frame (49), moving frame (10) is including first vertical frame (44), middle horizontal frame (45) and second vertical frame (46), and first vertical frame (44) are located the upper end in middle horizontal frame (45) outside, and second vertical frame (46) are located the inboard of middle horizontal frame (45), and first vertical frame (44), middle horizontal frame (45) and second vertical frame (46) are adjacent between fixed connection, and the lower terminal surface of second vertical frame (46) is sealed, the upper end fixedly connected with spacing frame (43) of first vertical frame (44), first vertical frame (44) are through spacing slip in embedded groove (50) inside, chamber (47) in the middle of the inside formation of second vertical frame (46), temperature sensing gasbag (12) are located the inside of middle chamber (47).
2. The over-temperature protection device of the electronic speed regulator according to claim 1, wherein: a second input conducting strip (24) is arranged in the mounting shell (1) along the lower end of a first input conducting strip (22), one side of the upper end of the second input conducting strip (24) is provided with a second fixed contact (25) along the lower end of a first movable contact (21), the interior of the mounting shell (1) is provided with a second output conducting strip (32) along the lower end of a connecting branch conducting strip (27), one side of the upper end of the second output conducting strip (32) is provided with a fourth fixed contact (33) along the lower end of a second movable contact (28), the first output conducting strip (29) and the third fixed contact (30) are provided with three groups, the upper ends of the lower two first output conducting strips (29) are provided with insulating plates (31), the distance between the upper ends of the two insulating plates (31) at the lower ends and the lower end face of the connecting branch conducting strip (27) is larger than the distance between the first movable contact (21) and the second fixed contact (25) at the lower ends, the distance between the second movable contact (28) at the lowest end and the fourth fixed contact (33) is equal to the distance between the first movable contact (21) at the lower end and the second fixed contact (25).
3. The over-temperature protection device of the electronic speed regulator according to claim 1, wherein: the middle of installation casing (1) up end is provided with first ventilation groove (34), and first ventilation groove (34) are provided with a plurality ofly, installation casing (1) up end is provided with sliding tray (35) along the both sides in first ventilation groove (34), installation casing (1) up end is provided with first mounting hole (36) along the both sides of sliding tray (35).
4. An over-temperature protection device of an electronic governor according to claim 3, characterized in that: the middle of the upper end of the mounting shell (1) is provided with a ventilation adjusting plate (4), a second ventilation groove (37) is arranged on the ventilation adjusting plate (4), the second ventilation groove (37) is provided with a plurality of second ventilation grooves (37), the shapes of the plurality of second ventilation grooves (37) are matched with the shapes of the plurality of first ventilation grooves (34), the distance between every two adjacent second ventilation grooves (37) is greater than the width of the second ventilation grooves (37), the lower end of the ventilation adjusting plate (4) is fixedly connected with sliding strips (38) along two sides of a second ventilation groove (37), the ventilation adjusting plate (4) slides in a sliding groove (35) of the mounting shell (1) through the sliding strips (38), the end surface is provided with second mounting hole (39) and third mounting hole (40) along the both sides of slide bar (38) under ventilation regulating plate (4), and second mounting hole (39) are located the one end of third mounting hole (40).
5. The over-temperature protection device of the electronic speed regulator according to claim 1, wherein: the connecting conducting strip fixing unit (15) is provided with fixing arc-shaped plates (42), connecting channels (41) are formed between the fixing arc-shaped plates (42), and the height of each connecting channel (41) is equal to the height of the first connecting conducting strip (20) and the height of the second connecting conducting strip (26).
6. The over-temperature protection device of the electronic speed regulator according to claim 2, wherein: one side of first input conducting strip (22) is connected with first input wire (5) along the outside of installation casing (1), one side of second input conducting strip (24) is connected with second input wire (6) along the outside of installation casing (1), one side of first output conducting strip (29) is connected with first output wire (7) along the outside of installation casing (1), one side of second output conducting strip (32) is connected with second output wire (8) along the outside of installation casing (1).
7. The over-temperature protection device of the electronic speed regulator according to claim 1, wherein: four corners positions at the upper end and the lower end of the mounting shell (1) are provided with I-shaped mounting pieces (3), and the I-shaped mounting pieces (3) are connected with the mounting shell (1) through screws.
8. A protection method is realized based on an over-temperature protection device of an electronic speed regulator of any one of claims 1-7, and is characterized by comprising the following steps:
the method comprises the following steps: sliding the ventilation adjusting plate (4) to enable a first ventilation groove (34) on the mounting shell (1) to be aligned with a second ventilation groove (37) on the ventilation adjusting plate (4), fixing the ventilation adjusting plate (4) by passing screws through a first mounting hole (36) and a second mounting hole (39), and enabling the first ventilation groove (34) and the second ventilation groove (37) to be communicated with the middle cavity (47);
step two: the buffer spring (11) in the middle cavity (47) senses the outside temperature through the air entering the first ventilation groove (34) and the second ventilation groove (37);
step three: when the temperature rises, the temperature sensing air bag (12) expands to extrude the movable frame (10), the movable frame (10) moves downwards along the fixed frame (9) under the action of the buffer spring (11) until the movable frame (10) is jointed with the pressure plate and drives the pressure plate (13) to move downwards, the first connecting conducting strip (20) and the second connecting conducting strip (26) are driven to move downwards by driving the connecting conducting strip fixing unit (15), a first movable contact (21) at the upper end of the first connecting conducting strip (20) is far away from a first fixed contact (23) of a first input conducting strip (22), a second movable contact (28) on a connecting branch conducting strip (27) connected with the second connecting conducting strip (26) is far away from a third fixed contact (30) on a first output conducting strip (29), and the first input conducting strip (22) and the first output conducting strip (29) are disconnected for power-off protection;
step four: when a first movable contact (21) at the upper end of a first connecting conducting strip (20) is far away from a first fixed contact (23) of a first input conducting strip (22), the first movable contact (21) at the lower end of the first connecting conducting strip (20) gradually approaches and is jointed with a second fixed contact (25) on a second input conducting strip (24), a second movable contact (28) on a connecting sub-conducting strip (27) connected with a second connecting conducting strip (26) is far away from a third fixed contact (30) on a first output conducting strip (29), and a second movable contact (28) at the lower end of the connecting sub-conducting strip (27) gradually approaches and is jointed with a fourth fixed contact (33) on a second output conducting strip (32), the second input conducting strip (24) is communicated with a second output conducting strip (32), the second input conducting strip (24) is connected with a battery module, and the second output conducting strip (32) is connected with a heat dissipation driving mechanism, heat dissipation is carried out;
step five: the temperature is gradually reduced under the action of the heat dissipation driving mechanism until the temperature is recovered to normal, the temperature sensing air bag (12) is continuously reduced while the temperature is reduced, the connecting conducting strip fixing unit (15) drives the first connecting conducting strip (20) and the second connecting conducting strip (26) to gradually reset under the action of the supporting spring (19), a first movable contact (21) at the upper end of the first connecting conducting strip (20) gradually approaches and is attached to a first fixed contact (23) of the first input conducting strip (22), a second movable contact (28) on a connecting sub conducting strip (27) connected with the second connecting conducting strip (26) gradually approaches and is attached to a third fixed contact (30) on the first output conducting strip (29), the first input conducting strip (22) and the first output conducting strip (29) are communicated through the first connecting conducting strip (20) and the second connecting conducting strip (26), and the motor resumes operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011454547.0A CN112687493B (en) | 2020-12-10 | 2020-12-10 | Over-temperature protection device and protection method of electronic speed regulator |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011454547.0A CN112687493B (en) | 2020-12-10 | 2020-12-10 | Over-temperature protection device and protection method of electronic speed regulator |
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| CN112687493A CN112687493A (en) | 2021-04-20 |
| CN112687493B true CN112687493B (en) | 2021-09-14 |
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| GB0713883D0 (en) * | 2007-07-17 | 2007-08-29 | Otter Controls Ltd | Controls for liquid heating vessels |
| CN104433782A (en) * | 2013-09-17 | 2015-03-25 | 上海振世能源科技有限公司 | Water heater with automatic power off function |
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