CN110993464B - Cooling protection device for preventing circuit from overheating - Google Patents
Cooling protection device for preventing circuit from overheating Download PDFInfo
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- CN110993464B CN110993464B CN201911424536.5A CN201911424536A CN110993464B CN 110993464 B CN110993464 B CN 110993464B CN 201911424536 A CN201911424536 A CN 201911424536A CN 110993464 B CN110993464 B CN 110993464B
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- 238000001816 cooling Methods 0.000 title claims abstract description 26
- 238000013021 overheating Methods 0.000 title description 6
- 239000002184 metal Substances 0.000 claims description 21
- 238000002844 melting Methods 0.000 claims description 17
- 230000008018 melting Effects 0.000 claims description 17
- 238000004804 winding Methods 0.000 claims description 10
- 230000005540 biological transmission Effects 0.000 claims description 8
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 230000004927 fusion Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
- H01H85/02—Details
- H01H85/47—Means for cooling
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
- H01H85/02—Details
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Abstract
The invention discloses a cooling protection device for preventing a circuit from being overheated, which comprises a working box and a working cavity arranged in the working box, wherein a fixed table is fixedly arranged at the bottom wall of the working cavity, a temperature control box capable of detecting temperature is fixedly arranged on the upper end surface of the fixed table, a temperature control cavity is arranged in the temperature control box, and a heat conducting rod is fixedly arranged on the left end surface of the temperature control box.
Description
Technical Field
The invention relates to the technical field of emergency protection circuits, in particular to a cooling protection device for preventing a circuit from being overheated.
Background
The fuse is also called as a current fuse, and mainly plays a role in overload protection, when current rises to a certain height and heat abnormally, the fuse can cut off the current by itself, so that the safe operation of a circuit is protected, the traditional fuse can not be fused when the current fluctuates occasionally, and therefore intermittent tripping of the current fluctuation time is caused, the operation of equipment is affected, and meanwhile, the equipment is troublesome, people are required to frequently dial an electric brake, and the equipment is more complicated, so that a cooling protection device for preventing the circuit from overheating is urgently needed to solve the problems, and the invention improves the defects.
Disclosure of Invention
The technical problem to be solved by the present invention is to provide a cooling protection device for preventing the circuit from overheating, which overcomes the above problems.
The invention is realized by the following technical scheme.
A cooling protection device for preventing a circuit from being overheated comprises a working box and a working cavity arranged in the working box, wherein a fixed table is fixedly arranged on the bottom wall of the working cavity, a temperature control box capable of detecting temperature is fixedly arranged on the upper end face of the fixed table, a temperature control cavity is arranged in the temperature control box, a heat conducting rod is fixedly arranged on the left end face of the temperature control box, a resistance wire is wound on the heat conducting rod, the heat conducting rod extends rightwards into the temperature control cavity, a heat conducting block positioned in the temperature control cavity is fixedly arranged on the right end face of the heat conducting rod, the heat conducting block can transfer heat on the resistance wire into the temperature control cavity, a piston positioned on the right side of the heat conducting block is arranged in the temperature control cavity in a sliding mode, the piston can be pushed to slide rightwards by gas expansion in the temperature control cavity, a metal melting plate positioned on the upper side of the heat conducting rod is arranged in the working cavity in a, when the temperature on the metal melting plate rises to a certain degree, the resistance wire can be fused by the metal melting plate, power-off protection is achieved, a power device for providing power for the metal melting plate is arranged in the working cavity, air cooling devices capable of cooling the resistance wire are symmetrically arranged on the front cavity wall and the rear cavity wall of the working cavity, and when the resistance wire just begins to rise in temperature, the air cooling devices can be started to cool the resistance wire, so that circuit tripping caused by occasional current fluctuation is prevented.
Further, the power device comprises a first rotating shaft fixedly connected to the upper cavity wall of the working cavity, threads are arranged on the lower side of the first rotating shaft, a threaded sleeve is in threaded connection with the threads of the first rotating shaft, a first sliding chute positioned on the left side of the threaded sleeve is arranged at the left end of the working box, a first sliding block is arranged in the first sliding chute in a sliding manner, the right end face of the first sliding block is connected with the left end face of the threaded sleeve through a connecting rod, the lower end face of the threaded sleeve is fixedly connected with the upper end face of the metal melting plate, a second sliding chute positioned on the right side of the first rotating shaft is arranged at the upper end of the working box, a second sliding block is arranged in the second sliding chute in a sliding manner, the left end face of the second sliding block is connected with the left cavity wall of the second sliding chute through a first stretching spring, a second rotating shaft is rotatably arranged in the, the second rotating shaft is connected with the first rotating shaft through a first belt pulley, and the first belt pulley is an elastic belt pulley.
Further, a motor located on the right side of the fixed table is fixedly arranged on the bottom wall of the working cavity, a motor shaft is rotatably arranged on the upper end face of the motor, a rotating block is fixedly arranged on the motor shaft, a first bevel gear located on the upper side of the rotating block is fixedly arranged on the motor shaft, a third rotating shaft located on the upper side of the first bevel gear is rotatably arranged on the right cavity wall of the working cavity, a second bevel gear meshed with the first bevel gear is fixedly arranged on the third rotating shaft, a first gear located on the right side of the second bevel gear is fixedly arranged on the third rotating shaft, a fourth rotating shaft located on the upper side of the third rotating shaft is rotatably arranged on the right cavity wall of the working cavity, a second gear located on the upper side of the first gear is fixedly arranged on the fourth rotating shaft, a third bevel gear located on the left side of the second gear is fixedly arranged on the fourth rotating shaft, and a fifth rotating shaft located on the left side of, and a fourth bevel gear meshed with the third bevel gear is fixedly arranged on the fifth rotating shaft, a first reel positioned on the front side of the fourth bevel gear is fixedly arranged on the fifth rotating shaft, and the first reel is connected with the right end face of the second sliding block through a first pull rope.
Furthermore, the right chamber wall of the working chamber is provided with a sixth rotating shaft located on the upper side of the fourth rotating shaft in a rotating manner, a third gear meshed with the second gear is fixedly arranged on the sixth rotating shaft, a fifth bevel gear located on the left side of the third gear is fixedly arranged on the sixth rotating shaft, a sixth bevel gear capable of driving the second rotating shaft to rotate is arranged on the second rotating shaft and located on the upper portion of the first belt pulley, and when the second sliding block slides to the right chamber wall of the second sliding groove, the sixth bevel gear is meshed with the fifth bevel gear.
The air cooling device comprises a seventh rotating shaft which is rotatably connected with the front cavity wall and the rear cavity wall of the working cavity, annular through holes which are positioned at the position of the separated end face of the seventh rotating shaft are arranged in a penetrating manner on the front end wall and the rear end wall of the working box, fan blades which can carry out air cooling on the resistance wire are fixedly arranged on the seventh rotating shaft, a third sliding groove which is positioned on the right side of the seventh rotating shaft is symmetrically arranged at the front end and the rear end of the working box, a third sliding block is arranged in the third sliding groove in a sliding manner, the left end face of the third sliding block is connected with the left cavity wall of the third sliding groove through a second stretching spring, an eighth rotating shaft is rotatably arranged in the third sliding block and extends into the working cavity, the eighth rotating shaft is in transmission connection with the seventh rotating shaft through a second belt pulley, and a seventh gear which is positioned on the side of the.
Furthermore, the right end face of the piston is connected with the right cavity wall of the temperature control cavity through a compression spring, the right end face of the piston is fixedly provided with a fixed shaft which extends rightwards to the right side of the temperature control box, the fixed shaft is rotatably provided with a fourth gear positioned in the working cavity, the front end face and the rear end face of the fixed shaft are symmetrically provided with fixed rods positioned on the left side of the fourth gear, the front end face and the rear end face of the temperature control box are symmetrically provided with racks, the right end face of each rack is fixedly connected with the left end face of the fixed rod, the left cavity wall and the right cavity wall of the working cavity are rotatably provided with a ninth rotating shaft positioned on the front side of the rack, the ninth rotating shaft is fixedly provided with a fifth gear meshed with the rack, the ninth rotating shaft is fixedly provided with a second winding wheel positioned on the left side of the fifth gear, the second winding wheel is, the rack is driven to slide rightwards, so that the ninth rotating shaft is rotated, and the third sliding block slides rightwards to the right cavity wall of the third sliding groove.
Furthermore, the bottom wall of the working chamber is rotatably provided with tenth rotating shafts positioned at the front side and the rear side of the motor, seventh bevel gears are fixedly arranged at the tops of the tenth rotating shafts, the tenth rotating shafts at the front side and the rear side are in transmission connection through a third belt pulley, the rotating block is positioned in the third belt pulley, sliding grooves are symmetrically arranged in the rotating block from left to right, sliding blocks are arranged in the sliding grooves in a sliding manner, inner end surfaces of the sliding blocks are connected with the inner cavity wall of the sliding groove through a third extension spring, when the motor shaft rotates, the sliding blocks are thrown out of the sliding grooves to tension the third belt pulley, eleventh rotating shafts positioned at the two sides of the tenth rotating shafts are rotatably arranged on the front cavity wall and the rear cavity wall of the working chamber, an eighth bevel gear meshed with the seventh bevel gear is fixedly arranged on the eleventh rotating shaft, and a sixth gear positioned at the opposite end face side of the eighth bevel gear is fixedly arranged, when the third sliding block slides rightwards to the right cavity wall of the third sliding chute, the seventh gear is meshed with the sixth gear.
The invention has the beneficial effects that: the air cooling device can not cause the circuit to trip when the current fluctuates due to the use peak period, so that the normal continuous operation of equipment can be maintained, the frequency of tripping operation can be reduced, and convenience can be brought to people using electricity.
Drawings
The invention will now be described in detail with reference to fig. 1-5, wherein for ease of description the orientations described hereinafter are now defined as follows: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.
FIG. 1 is a schematic diagram of the overall structure of a cooling protection device for preventing overheating of a circuit according to the present invention;
FIG. 2 is a schematic view of the structure at A-A in FIG. 1;
FIG. 3 is a schematic view of the structure at B in FIG. 1;
FIG. 4 is a schematic view of the structure of FIG. 1 at C;
fig. 5 is a schematic structural diagram at D in fig. 2.
Detailed Description
The present invention will be further described with reference to the following description and examples, which include but are not limited to the following examples.
As shown in fig. 1-5, a cooling protection device for preventing overheating of a circuit includes a working box 10 and a working chamber 11 disposed in the working box 10, a fixing table 47 is fixedly disposed on a bottom wall of the working chamber 11, a temperature control box 13 capable of detecting temperature is fixedly disposed on an upper end surface of the fixing table 47, a temperature control chamber 12 is disposed in the temperature control box 13, a heat conducting rod 14 is fixedly disposed on a left end surface of the temperature control box 13, a resistance wire 15 is wound on the heat conducting rod 14, the heat conducting rod 14 extends to the right of the temperature control chamber 12, a heat conducting block 22 disposed in the temperature control chamber 12 is fixedly disposed on a right end surface of the heat conducting rod 14, the heat conducting block 22 can transfer heat on the resistance wire 15 to the temperature control chamber 12, a piston 23 disposed on the right side of the heat conducting block 22 is slidably disposed in the temperature control chamber 12, and gas in the temperature control chamber 12 expands to push the piston 23 to slide to the right, the metal melting plate 16 positioned on the upper side of the heat conducting rod 14 is arranged in the working cavity 11 in a sliding mode, the metal melting plate 16 can absorb part of heat in the resistance wire 15, when the temperature on the metal melting plate 16 rises to a certain degree, the resistance wire 15 can be fused by the metal melting plate 16, power-off protection is achieved, a power device 81 for providing power for the metal melting plate 16 is arranged in the working cavity 11, air cooling devices 82 capable of cooling the resistance wire 15 are symmetrically arranged on the front cavity wall and the rear cavity wall of the working cavity 11, and when the resistance wire 15 just begins to rise in temperature, the air cooling devices 82 can be started to cool the resistance wire 15, so that circuit tripping caused by occasional current fluctuation is prevented.
Advantageously, the power device 81 comprises a first rotating shaft 18 fixedly connected to the upper cavity wall of the working cavity 11, a thread is provided on the lower side portion of the first rotating shaft 18, a threaded sleeve 17 is connected to the thread of the first rotating shaft 18 by a thread, a first sliding groove 86 located on the left side of the threaded sleeve 17 is provided at the left end of the working box 10, a first sliding block 88 is slidably provided in the first sliding groove 86, the right end surface of the first sliding block 88 is connected to the left end surface of the threaded sleeve 17 by a connecting rod 87, the lower end surface of the threaded sleeve 17 is fixedly connected to the upper end surface of the metal melting plate 16, a second sliding groove 28 located on the right side of the first rotating shaft 18 is provided at the upper end of the working box 10, a second sliding block 68 is slidably provided in the second sliding groove 28, the left end surface of the second sliding block 68 is connected to the left cavity wall of the second sliding groove 28 by a first tension spring 19, a, the second rotating shaft 69 extends downwards into the working chamber 11, the second rotating shaft 69 is connected with the first rotating shaft 18 through a first belt pulley 21, and the first belt pulley 21 is an elastic belt pulley.
Advantageously, a motor 74 is fixedly arranged on the bottom wall of the working chamber 11 and located on the right side of the fixed table 47, a motor shaft 76 is rotatably arranged on the upper end surface of the motor 74, a rotating block 71 is fixedly arranged on the motor shaft 76, a first bevel gear 70 is fixedly arranged on the motor shaft 76 and located on the upper side of the rotating block 71, a third rotating shaft 45 is rotatably arranged on the right chamber wall of the working chamber 11 and located on the upper side of the first bevel gear 70, a second bevel gear 44 engaged with the first bevel gear 70 is fixedly arranged on the third rotating shaft 45, a first gear 46 is fixedly arranged on the third rotating shaft 45 and located on the right side of the second bevel gear 44, a fourth rotating shaft 37 is rotatably arranged on the upper side of the third rotating shaft 45, a second gear 38 is fixedly arranged on the fourth rotating shaft 37 and located on the upper side of the first gear 46, a third bevel gear 36 is fixedly arranged on the fourth rotating shaft 37 and located on the left side of the second gear, the front cavity wall and the rear cavity wall of the working cavity 11 are rotatably provided with a fifth rotating shaft 39 positioned on the left side of the fourth rotating shaft 37, a fourth bevel gear 32 meshed with the third bevel gear 36 is fixedly arranged on the fifth rotating shaft 39, a first coiling wheel 27 positioned on the front side of the fourth bevel gear 32 is fixedly arranged on the fifth rotating shaft 39, and the first coiling wheel 27 is connected with the right end face of the second sliding block 68 through a first pull rope 29.
Advantageously, a sixth rotating shaft 35 is rotatably disposed on the right cavity wall of the working cavity 11 and located above the fourth rotating shaft 37, a third gear 34 engaged with the second gear 38 is fixedly disposed on the sixth rotating shaft 35, a fifth bevel gear 30 located on the left side of the third gear 34 is fixedly disposed on the sixth rotating shaft 35, a sixth bevel gear 20 capable of driving the second rotating shaft 69 to rotate is disposed on the second rotating shaft 69, the sixth bevel gear 20 is located on the upper portion of the first belt pulley 21, and when the second sliding block 68 slides rightwards to the right cavity wall of the second sliding chute 28, the sixth bevel gear 20 is engaged with the fifth bevel gear 30.
Advantageously, said air cooling means 82 comprises a seventh shaft 49 rotatably connected to the front and rear walls of said working chamber 11, the front and rear end walls of the working box 10 are provided with annular through holes 51 at the end surfaces of the seventh rotating shaft 49 which are separated from each other, the seventh rotating shaft 49 is fixedly provided with a fan blade 48 which can cool the resistance wire 15 by air cooling, the front end and the rear end of the working box 10 are symmetrically provided with third sliding chutes 52 positioned at the right side of the seventh rotating shaft 49, a third slide block 80 is arranged in the third slide groove 52 in a sliding manner, the left end surface of the third slide block 80 is connected with the left cavity wall of the third slide groove 52 through a second extension spring 77, an eighth rotating shaft 78 is rotatably arranged in the third sliding block 80, the eighth rotating shaft 78 extends into the working cavity 11, the eighth rotating shaft 78 is in transmission connection with the seventh rotating shaft 49 through a second belt pulley 50, a seventh gear 79 is fixedly arranged on the eighth rotating shaft 78 and is positioned on the side of the separated end face of the second pulley 50.
Beneficially, the right end face of the piston 23 is connected to the right cavity wall of the temperature control cavity 12 through a compression spring 24, the right end face of the piston 23 is fixedly provided with a fixing shaft 25 extending rightward to the right side of the temperature control box 13, the fixing shaft 25 is rotatably provided with a fourth gear 26 located in the working cavity 11, the front and rear end faces of the fixing shaft 25 are symmetrically provided with a fixing rod 66 located on the left side of the fourth gear 26, the front and rear end faces of the temperature control box 13 are symmetrically provided with a rack 67, the right end face of the rack 67 is fixedly connected to the left end face of the fixing rod 66, the left and right cavity walls of the working cavity 11 are rotatably provided with a ninth rotating shaft 60 located on the front side of the rack 67, the ninth rotating shaft 60 is fixedly provided with a fifth gear 59 engaged with the rack 67, the ninth rotating shaft 60 is fixedly provided with a second wire winding wheel 61 located on the left side of the fifth gear 59, and the second wire winding wheel 61 is, when the fixed shaft 25 slides rightwards, the rack 67 is driven to slide rightwards, so that the ninth rotating shaft 60 rotates, and the third sliding block 80 slides rightwards to the right cavity wall of the third sliding chute 52.
Beneficially, the bottom wall of the working chamber 11 is rotatably provided with tenth rotating shafts 43 located at the front and rear sides of the motor 74, the top of the tenth rotating shaft 43 is fixedly provided with seventh bevel gears 42, the tenth rotating shafts 43 at the front and rear sides are in transmission connection through a third belt pulley 63, the rotating block 71 is located in the third belt pulley 63, sliding grooves 73 are symmetrically arranged in the rotating block 71, sliding blocks 72 are slidably arranged in the sliding grooves 73, the inner end surfaces of the sliding blocks 72 are connected with the inner cavity wall of the sliding grooves 73 through a third tension spring 75, when the motor shaft 76 rotates, the sliding blocks 72 are thrown out of the sliding grooves 73 to tension the third belt pulley 63, the front and rear cavity walls of the working chamber 11 are rotatably provided with eleventh rotating shafts 40 located at the front and rear sides of the tenth rotating shafts 43, the eleventh rotating shafts 40 are fixedly provided with eighth bevel gears 41 engaged with the seventh bevel gears 42, a sixth gear 54 located on the side of the opposite end surface of the eighth bevel gear 41 is fixedly arranged on the eleventh rotating shaft 40, and when the third slider 80 slides rightwards to the right cavity wall of the third sliding chute 52, the seventh gear 79 is meshed with the sixth gear 54.
Sequence of mechanical actions of the whole device:
the initial state of the invention is as follows: the piston 23 is positioned at the left side in the temperature control cavity 12, the compression spring 24 is in a relaxed state, the fourth gear 26 is not meshed with the first gear 46 and the second gear 38, the first pull rope 29 is in a relaxed state, the first extension spring 19 is in a relaxed state, the sixth bevel gear 20 is not meshed with the fifth bevel gear 30, the metal melting plate 16 is not contacted with the resistance wire 15, the second pull rope 53 is in a relaxed state, the second extension spring 77 is in a relaxed state, and the seventh gear 79 is not meshed with the sixth gear 54;
1. the temperature control device is placed in a used circuit, two ends of a resistance wire 15 are connected in series in the circuit, when the current in the circuit slightly fluctuates to cause temperature rise, the resistance wire 15 transfers heat to a heat conducting rod 14, the heat in the circuit on the heat conducting rod 14 is transferred to a heat conducting block 22, and the heat conducting block 22 generates heat to expand gas in a temperature control cavity 12 and push a piston 23 to slide rightwards;
2. when the piston 23 slides rightwards, the piston 23 slides rightwards to drive the fixed shaft 25 to slide rightwards, the fixed shaft 25 slides rightwards to drive the fixed rod 66 to slide rightwards, the fixed rod 66 slides rightwards to drive the rack 67 to slide rightwards, the rack 67 slides to drive the fifth gear 59 to rotate as the rack 67 is meshed with the fifth gear 59, the fifth gear 59 rotates to drive the ninth rotating shaft 60 to rotate, the ninth rotating shaft 60 rotates to drive the second winding wheel 61 to rotate, the second winding wheel 61 rotates to tension the second pull rope 53, the second pull rope 53 is tensioned to enable the third slide block 80 to slide rightwards to the right cavity wall of the third slide groove 52, and when the right end face of the third slide block 80 is abutted against the right cavity wall of the third slide groove 52, the seventh gear 79 is meshed with the sixth gear 54;
3. when the seventh gear 79 is engaged with the sixth gear 54, the motor 74 is started to rotate to drive the motor shaft 76 to rotate, the motor shaft 76 rotates to drive the rotating block 71 to rotate, the rotating block 71 rotates to throw the sliding block 72 out of the sliding groove 73, the sliding block 72 is thrown out to tension the third belt pulley 63, the third belt pulley 63 tensions to drive the tenth rotating shaft 43 to rotate, the tenth rotating shaft 43 rotates to drive the seventh bevel gear 42 to rotate, the seventh bevel gear 42 rotates to drive the eighth bevel gear 41 to rotate as the seventh bevel gear 42 is engaged with the eighth bevel gear 41, the eighth bevel gear 41 rotates to drive the eleventh rotating shaft 40 to rotate, the eleventh rotating shaft 40 rotates to drive the sixth gear 54 to rotate, the sixth gear 54 rotates to drive the seventh gear 79 to rotate, the seventh gear 79 rotates to drive the eighth rotating shaft 78 to rotate as the eighth rotating shaft 78 is in transmission connection with the seventh rotating shaft 49 through the second belt pulley 50, the eighth rotating shaft 78 rotates to drive the seventh rotating shaft 49 to rotate, the seventh rotating shaft 49 rotates to drive the fan blades 48 to rotate, and the fan blades 48 rotate to dissipate heat of the resistance wire 15, so that tripping caused by occasional fluctuation of current is prevented;
4. when the heat in the circuit is too large due to short circuit, the gas in the temperature control cavity 12 expands to push the piston 23 to slide rightwards, the piston 23 slides rightwards to drive the fixed shaft 25 to slide rightwards, when the fixed shaft 25 slides rightwards to abut against the right cavity wall of the working cavity 11, the fourth gear 26 is respectively meshed with the first gear 46 and the second gear 38, the motor shaft 76 rotates to drive the first bevel gear 70 to rotate, because the first bevel gear 70 is meshed with the second bevel gear 44, the first bevel gear 70 rotates to drive the second bevel gear 44 to rotate, the second bevel gear 44 rotates to drive the third rotating shaft 45 to rotate, the third rotating shaft 45 rotates to drive the first gear 46 to rotate, the first gear 46 rotates to drive the fourth gear 26 to rotate, the fourth gear 26 rotates to drive the second gear 38 to rotate, the second gear 38 rotates to drive the fourth rotating shaft 37 to rotate, the fourth rotating shaft 37 rotates to drive the third bevel gear 36 to, since the third bevel gear 36 is engaged with the fourth bevel gear 32, the third bevel gear 36 rotates to drive the fourth bevel gear 32 to rotate, the fourth bevel gear 32 rotates to drive the fifth rotating shaft 39 to rotate, the fifth rotating shaft 39 rotates to drive the first coiling wheel 27 to rotate, the first coiling wheel 27 rotates to tension the first pulling rope 29, the first pulling rope 29 is tensioned to slide the second sliding block 68 to the right, when the second sliding block 68 slides to the right to abut against the right cavity wall of the second sliding chute 28, the sixth bevel gear 20 is engaged with the fifth bevel gear 30, since the second gear 38 is engaged with the third gear 34, the second gear 38 rotates to drive the third gear 34 to rotate, the third gear 34 rotates to drive the sixth rotating shaft 35 to rotate, the sixth rotating shaft 35 rotates to drive the fifth bevel gear 30 to rotate, the fifth bevel gear 30 rotates to drive the sixth bevel gear 20 to rotate, the sixth bevel gear 20 rotates to drive the second rotating shaft 69 to rotate, because second pivot 69 passes through first belt pulley 21 transmission with first pivot 18 and is connected, second pivot 69 rotates and drives first pivot 18 and rotate, thereby first pivot 18 rotates and makes threaded sleeve 17 slide down, threaded sleeve 17 slides down and drives metal fusion board 16 and slides down, makes metal fusion board 16 and resistance wire 15 butt, absorbs the heat in the resistance wire 15 through metal fusion board 16, when the temperature in the metal fusion board 16 was too high, thereby fusing resistance wire 15 plays the effect of protection circuit.
The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.
Claims (1)
1. The utility model provides a prevent overheated cooling protection device of circuit, include the work box and set up in work chamber in the work box, the work chamber diapire has set firmly fixed station, its characterized in that: a temperature control box capable of detecting temperature is fixedly arranged on the upper end face of the fixed table, a temperature control cavity is arranged in the temperature control box, a heat conducting rod is fixedly arranged on the left end face of the temperature control box, a resistance wire is wound on the heat conducting rod, the heat conducting rod extends rightwards into the temperature control cavity, a heat conducting block positioned in the temperature control cavity is fixedly arranged on the right end face of the heat conducting rod, the heat conducting block can transfer heat on the resistance wire into the temperature control cavity, a piston positioned on the right side of the heat conducting block is arranged in the temperature control cavity in a sliding mode, the piston can be pushed to slide rightwards by gas expansion in the temperature control cavity, a metal melting plate positioned on the upper side of the heat conducting rod is arranged in the working cavity in a sliding mode, the metal melting plate can absorb heat in the resistance wire, and when the temperature on the metal melting plate rises to a certain degree, the resistance, the power-off protection is realized, a power device for providing power for the metal melting plate is arranged in the working cavity, air cooling devices capable of cooling the resistance wire are symmetrically arranged on the front cavity wall and the rear cavity wall of the working cavity, and when the resistance wire begins to be heated, the air cooling devices can be started to cool the resistance wire, so that circuit tripping caused by occasional current fluctuation is prevented; the power device comprises a first rotating shaft fixedly connected to the upper cavity wall of the working cavity, threads are arranged on the lower side of the first rotating shaft, a threaded sleeve is connected to the threads of the first rotating shaft in a threaded manner, a first sliding chute positioned on the left side of the threaded sleeve is arranged at the left end of the working box, a first sliding block is arranged in the first sliding chute in a sliding manner, the right end face of the first sliding block is connected with the left end face of the threaded sleeve through a connecting rod, the lower end face of the threaded sleeve is fixedly connected with the upper end face of the metal melting plate, a second sliding chute positioned on the right side of the first rotating shaft is arranged at the upper end of the working box, a second sliding block is arranged in the second sliding chute in a sliding manner, the left end face of the second sliding block is connected with the left cavity wall of the second sliding chute through a first stretching spring, a second rotating shaft is, the second rotating shaft is connected with the first rotating shaft through a first belt pulley, and the first belt pulley is an elastic belt pulley; a motor positioned on the right side of the fixed table is fixedly arranged on the bottom wall of the working cavity, a motor shaft is rotatably arranged on the upper end face of the motor, a rotating block is fixedly arranged on the motor shaft, a first bevel gear positioned on the upper side of the rotating block is fixedly arranged on the motor shaft, a third rotating shaft positioned on the upper side of the first bevel gear is rotatably arranged on the right cavity wall of the working cavity, a second bevel gear meshed with the first bevel gear is fixedly arranged on the third rotating shaft, a first gear positioned on the right side of the second bevel gear is fixedly arranged on the third rotating shaft, a fourth rotating shaft positioned on the upper side of the third rotating shaft is rotatably arranged on the right cavity wall of the working cavity, a second gear positioned on the upper side of the first gear is fixedly arranged on the fourth rotating shaft, a third bevel gear positioned on the left side of the second bevel gear is fixedly arranged on the fourth rotating shaft, and a fifth rotating shaft positioned on the, a fourth bevel gear meshed with the third bevel gear is fixedly arranged on the fifth rotating shaft, a first wire winding wheel positioned on the front side of the fourth bevel gear is fixedly arranged on the fifth rotating shaft, and the first wire winding wheel is connected with the right end face of the second sliding block through a first pull rope; a sixth rotating shaft positioned on the upper side of the fourth rotating shaft is rotatably arranged on the right cavity wall of the working cavity, a third gear meshed with the second gear is fixedly arranged on the sixth rotating shaft, a fifth bevel gear positioned on the left side of the third gear is fixedly arranged on the sixth rotating shaft, a sixth bevel gear capable of driving the second rotating shaft to rotate is arranged on the second rotating shaft, the sixth bevel gear is positioned on the upper part of the first belt pulley, and when the second sliding block slides rightwards to the right cavity wall of the second sliding chute, the sixth bevel gear is meshed with the fifth bevel gear; the air cooling device comprises a seventh rotating shaft which is rotatably connected with the front cavity wall and the rear cavity wall of the working cavity, annular through holes which are positioned at the position of the separating end face of the seventh rotating shaft are arranged in a penetrating way on the front end wall and the rear end wall of the working box, fan blades which can carry out air cooling on the resistance wire are fixedly arranged on the seventh rotating shaft, third sliding grooves which are positioned on the right side of the seventh rotating shaft are symmetrically arranged at the front end and the rear end of the working box, third sliding blocks are arranged in the third sliding grooves in a sliding way, the left end face of each third sliding block is connected with the left cavity wall of each third sliding groove through a second stretching spring, eighth rotating shafts are rotatably arranged in the third sliding blocks, the eighth rotating shafts extend into the working cavity, the eighth rotating shafts are in transmission connection with the seventh rotating shafts through second belt pulleys, and seventh gears which are positioned on the; the right end face of the piston is connected with the right cavity wall of the temperature control cavity through a compression spring, the right end face of the piston is fixedly provided with a fixed shaft which extends rightwards to the right side of the temperature control box, the fixed shaft is rotatably provided with a fourth gear positioned in the working cavity, the front end face and the rear end face of the fixed shaft are symmetrically provided with fixed rods positioned on the left side of the fourth gear, the front end face and the rear end face of the temperature control box are symmetrically provided with racks, the right end face of each rack is fixedly connected with the left end face of the fixed rod, the left cavity wall and the right cavity wall of the working cavity are rotatably provided with a ninth rotating shaft positioned on the front side of the rack, the ninth rotating shaft is fixedly provided with a fifth gear meshed with the rack, the ninth rotating shaft is fixedly provided with a second winding wheel positioned on the left side of the fifth gear, the second winding wheel is connected with the right, thereby enabling the ninth rotating shaft to rotate, and enabling the third sliding block to slide rightwards to the right cavity wall of the third sliding chute; the bottom wall of the working cavity is rotatably provided with tenth rotating shafts positioned at the front side and the rear side of the motor, the top of the tenth rotating shaft is fixedly provided with seventh bevel gears, the tenth rotating shafts at the front side and the rear side are in transmission connection through a third belt pulley, the rotating block is positioned in the third belt pulley, sliding grooves are symmetrically arranged in the rotating block in the left-right direction, sliding blocks are arranged in the sliding grooves in a sliding manner, inner end surfaces of the sliding blocks are connected with the inner cavity wall of the sliding groove through a third extension spring, when the motor shaft rotates, the sliding blocks are thrown out of the sliding grooves to tension the third belt pulley, the front cavity wall and the rear cavity wall of the working cavity are rotatably provided with eleventh rotating shafts positioned at the two sides of the tenth rotating shafts, an eighth bevel gear meshed with the seventh bevel gear is fixedly arranged on the eleventh rotating shaft, and a sixth gear positioned at the opposite end face side of the eighth bevel, when the third sliding block slides rightwards to the right cavity wall of the third sliding chute, the seventh gear is meshed with the sixth gear.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911424536.5A CN110993464B (en) | 2019-12-31 | 2019-12-31 | Cooling protection device for preventing circuit from overheating |
| GBGB2006325.1A GB202006325D0 (en) | 2019-12-31 | 2020-04-30 | A cooling protection device for preventing circuit from overheating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911424536.5A CN110993464B (en) | 2019-12-31 | 2019-12-31 | Cooling protection device for preventing circuit from overheating |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110993464A CN110993464A (en) | 2020-04-10 |
| CN110993464B true CN110993464B (en) | 2020-11-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911424536.5A Active CN110993464B (en) | 2019-12-31 | 2019-12-31 | Cooling protection device for preventing circuit from overheating |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN110993464B (en) |
| GB (1) | GB202006325D0 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110898757A (en) * | 2019-12-19 | 2020-03-24 | 嘉善剑桥机械有限公司 | Horizontal mixer |
| CN112582841A (en) * | 2021-01-06 | 2021-03-30 | 郑州早豫商贸有限公司 | Parallel circuit overcurrent protection heat abstractor |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005006374A2 (en) * | 2003-07-11 | 2005-01-20 | Matsushita Electric Industrial Co., Ltd. | Fusible alloy and thermal fuse |
| JP2007244558A (en) * | 2006-03-15 | 2007-09-27 | Tiger Vacuum Bottle Co Ltd | Electric rice cooker |
| CN203700507U (en) * | 2013-11-26 | 2014-07-09 | 山东希格斯新能源有限责任公司 | High-precision temperature-equalizing rapid heating device |
| CN205723413U (en) * | 2015-12-03 | 2016-11-23 | 厦门赛尔特电子有限公司 | A kind of circuit protection device |
| CN209313422U (en) * | 2019-03-21 | 2019-08-27 | 上海连成（集团）有限公司 | A kind of variable-frequency motor cooling control system |
-
2019
- 2019-12-31 CN CN201911424536.5A patent/CN110993464B/en active Active
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- 2020-04-30 GB GBGB2006325.1A patent/GB202006325D0/en not_active Ceased
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| Publication number | Publication date |
|---|---|
| CN110993464A (en) | 2020-04-10 |
| GB202006325D0 (en) | 2020-06-17 |
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