CN110769659B - Protection device capable of preventing circuit from overheating - Google Patents
Protection device capable of preventing circuit from overheating Download PDFInfo
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- CN110769659B CN110769659B CN201911096863.2A CN201911096863A CN110769659B CN 110769659 B CN110769659 B CN 110769659B CN 201911096863 A CN201911096863 A CN 201911096863A CN 110769659 B CN110769659 B CN 110769659B
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
- H05K7/20136—Forced ventilation, e.g. by fans
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H37/00—Thermally-actuated switches
- H01H37/02—Details
- H01H37/32—Thermally-sensitive members
- H01H37/36—Thermally-sensitive members actuated due to expansion or contraction of a fluid with or without vaporisation
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
- H05K7/20209—Thermal management, e.g. fan control
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20218—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant without phase change in electronic enclosures
- H05K7/20272—Accessories for moving fluid, for expanding fluid, for connecting fluid conduits, for distributing fluid, for removing gas or for preventing leakage, e.g. pumps, tanks or manifolds
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20218—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant without phase change in electronic enclosures
- H05K7/20281—Thermal management, e.g. liquid flow control
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- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a protective device capable of preventing a circuit from overheating, which comprises a shell, wherein a working cavity is arranged in the shell, a temperature measuring shell is fixedly arranged on the inner wall of the front side of the working cavity, a temperature measuring cavity is arranged in the temperature measuring shell, the temperature measuring shell is internally provided with a temperature measuring cavity, the invention adopts the hinged ratchet and the movable ratchet, realizes that the user does not rebound when downwards stirring the starting slide bar and always keeps the circuit connection state, adopts the expansion balloon, realizes that when the temperature of the circuit board rises, when the expansion balloon is enlarged and is abutted against the temperature measurement shell or the temperature measurement slide block, the air cooling device, the pump body device or the overheating protection device is triggered, the problem that the conventional common circuit overheating protection device can only realize the function of overheating and cutting off a circuit and cannot cool the circuit is solved, moreover, many circuits are too far away from the manual starting and stopping of the component, which wastes time for restarting the circuit.
Description
Technical Field
The invention relates to the field of circuit protection, in particular to a protection device capable of preventing a circuit from being overheated.
Background
The invention relates to overheating protection, which is characterized in that when the temperature exceeds a certain threshold value, a corresponding protection function is started, and an electronic device generates heat during working, so that most of the electronic devices have overheating protection, and when the temperature exceeds the corresponding threshold value, the protection is started.
Disclosure of Invention
The technical problem is as follows:
at present, a general circuit overheating protection device can only realize the function of overheating and cutting off a circuit, the circuit cannot be cooled, and a plurality of circuits are manually started and stopped and cut off the assembly too far, so that time is wasted due to restarting of the circuit.
In order to solve the above problems, this embodiment provides a protection device capable of preventing overheating of a circuit, which comprises a housing, a working chamber is arranged in the housing, a temperature measurement housing is fixedly arranged on the inner wall of the front side of the working chamber, a temperature measurement chamber is arranged in the temperature measurement housing, an electronic circuit board can be fixed on the rear wall of the temperature measurement chamber, an expansion balloon is arranged in the temperature measurement chamber, an air cooling device is arranged on the inner wall of the rear side of the working chamber, the air cooling device comprises a fixed support which is fixedly arranged on the inner wall of the rear side of the working chamber and is vertically symmetrical, a fan shaft which is rotatably connected to the fixed support, and a fan which is fixedly arranged at the lower end of the fan shaft and is aligned with the circuit board, the fan is rotated to generate wind power to realize heat dissipation of the circuit board, the temperature measurement chamber is fixedly arranged on the inner wall of the left side of the working chamber, a pump body cavity arranged in the pump body shell, a pump rotating shaft rotationally connected to the inner wall of the rear side of the working cavity, a pump body plate fixedly arranged at the tail end of the front end of the pump rotating shaft, five pump body blades fixedly arranged at the front end of the pump body plate and distributed in an annular array, a starting slide way is arranged on the inner wall of the left side of the working cavity and communicated with the outside, a starting slide rod capable of sliding up and down is arranged on the starting slide way, nineteen hinged ratchets which are uniformly distributed up and down are hinged on the left end of the starting slide bar, a gear shaft is rotatably connected on the inner wall of the rear side of the working cavity, the gear shaft is provided with an overheating protection assembly, the overheating protection assembly comprises a gear fixedly arranged on the gear shaft and a fixed ratchet fixedly arranged at the front end of the gear and capable of being abutted against the hinged ratchet, and the inner wall of the rear side of the working cavity is provided with a belt wheel tensioning assembly capable of keeping a belt wheel tensioned all the time.
Preferably, a motor is embedded in the inner wall of the right side of the working cavity, the motor is connected to the left end of the motor in a power mode, a matching belt pulley shaft located on the upper side of the motor shaft is connected to the inner wall of the right side of the working cavity in a rotating mode, a driven belt pulley shaft located on the upper side of the matching belt pulley shaft is connected to the inner wall of the right side of the working cavity in a rotating mode, a driving bevel gear is fixedly arranged on the motor shaft, a linkage gear shaft is connected to the inner wall of the rear side of the working cavity in a rotating mode, a driven bevel gear meshed with the driving bevel gear is fixedly arranged on the linkage gear shaft, and a driving bevel gear.
Preferably, the working chamber downside outer end has set firmly the connecting plate, the connecting plate right-hand member has set firmly cooling container, it stores the chamber to be equipped with the coolant liquid in the cooling container, the coolant liquid is stored the intracavity and is equipped with the coolant liquid, working chamber downside inner wall has set firmly the power, working chamber rear side inner wall articulates there is articulated disc, the dead lever has set firmly on the articulated disc, the dead lever with be connected with anodal electric wire between the circuit board positive pole, set firmly on the working chamber rear side inner wall can with the conducting rod of dead lever butt and circular telegram, the conducting rod with be connected with connecting wire between the power positive pole, be connected with the negative pole electric wire between power negative pole and the circuit board negative pole.
Preferably, the outer end of the left side of the working cavity is fixedly provided with a butt joint block, the inner wall of the left side of the working cavity is communicated with the outside to form a power-off slide way, a liquid outlet pipe extending outwards through the power-off slide way is arranged in the working cavity, the liquid outlet pipe is positioned at the outside and can be abutted against the butt joint block, a knocking rod is fixedly arranged at the lower end of the liquid outlet pipe at the outside, a power-off spring is connected between the part in the working cavity and the inner wall of the lower side of the working cavity, a starting spring is connected between the starting slide rod and the inner wall of the lower side of the working cavity, a ratchet butt joint block capable of being abutted against the lower end of a hinged ratchet is fixedly arranged on the left side of the starting slide rod.
The air cooling device further comprises an auxiliary transmission shaft fork fixedly arranged on the fan shaft and located on the upper side of the fan shaft, main transmission shaft forks which are symmetrical up and down are fixedly arranged on the driven pulley shaft and the motor shaft, a cross shaft is connected between the main transmission shaft fork and the auxiliary transmission shaft fork, a driven pulley located at the right end of the upper main transmission shaft fork is fixedly arranged on the driven pulley shaft, a matching pulley is fixedly arranged on the matching pulley shaft, a transmission belt is connected between the matching pulley and the driven pulley, a driving pulley located on the right side of the driving bevel gear is fixedly arranged on the motor shaft, and a connecting belt is connected between the driving pulley and the matching pulley.
Wherein, the pump body device also comprises a liquid guiding pipe connected between the cooling liquid storage cavity and the pump body cavity, the liquid guiding pipe is connected with the pump body cavity and embedded in the pump rotating shaft, the liquid guiding pipe positioned in the cooling liquid storage cavity is positioned below the liquid level of the cooling liquid, the pump rotating shaft is fixedly provided with a pump gear positioned at the rear side of the pump body plate, the tail end of the left end of the matching belt wheel shaft is fixedly provided with a main bevel gear, the inner wall at the rear side of the working cavity is rotatably connected with an auxiliary bevel gear shaft, the auxiliary bevel gear shaft is fixedly provided with a transmission gear meshed and connected with the pump gear, the auxiliary bevel gear shaft is fixedly provided with an auxiliary bevel gear meshed and connected with the main bevel gear, the inner wall at the rear side of the working cavity is fixedly provided with a cooling pipe rear plate, the front end of the cooling pipe rear plate is fixedly provided with four cooling pipes which are uniformly distributed, and a liquid outlet pipe is connected between the cooling pipe and the cooling liquid storage, and the liquid outlet pipe extends into the position below the liquid level of the cooling liquid, and a connecting pipe is connected between the cooling pipe and the pump body cavity.
Advantageously, the inflatable balloon is thermally expanded, and when the inflatable balloon abuts against the inner walls of the left side and the right side of the temperature measuring cavity, the motor can be started, so that the air cooling device and the pump body device work, and in order to prevent cavitation, the liquid guide pipe, the pump body cavity, the connecting pipe and the cooling pipe are required to be filled with the cooling liquid all the time.
Wherein, the overheating protection component also comprises a temperature measuring slide block which is connected on the inner wall of the temperature measuring cavity in a sliding way, the temperature measuring slide block can be abutted against an expanded balloon, a temperature measuring spring which is symmetrical left and right is connected between the temperature measuring slide block and the lower inner wall of the temperature measuring cavity, a temperature measuring fixing rod which penetrates through the temperature measuring cavity and extends towards the working cavity is fixedly arranged at the lower end of the temperature measuring slide block, the temperature measuring fixing rod can be connected with the lower inner wall of the temperature measuring cavity in a sliding way, a transverse moving slideway which faces left and right is arranged on the inner wall at the rear side of the working cavity, a transverse moving inclined rod is connected on the transverse moving slideway in a sliding way, the front end of the transverse moving inclined rod is rotatably connected with a moving gear shaft, a moving gear which can be meshed with the moving gear is fixedly arranged on the moving gear shaft, and a, and a secondary belt wheel positioned at the rear side of the gear is fixedly arranged on the gear shaft, and a belt is connected between the secondary belt wheel and the main belt wheel.
The belt wheel tensioning assembly comprises an adjusting slide way arranged on the inner wall of the rear side of the working cavity and an adjusting slide block connected to the adjusting slide way in a sliding mode, an adjusting wheel shaft is connected to the adjusting slide block in a rotating mode, an adjusting wheel is fixedly arranged at the tail end of the front end of the adjusting wheel shaft, a fixed support plate located at the right end of the adjusting slide block is fixedly arranged on the inner wall of the rear side of the working cavity, an adjusting spring is connected between the fixed support plate and the adjusting slide block, a butt belt wheel shaft is connected to the fixed support plate in a rotating mode, a butt belt wheel is fixedly arranged at the tail end of the front end of the butt belt wheel shaft, and a belt is abutted to.
The invention has the beneficial effects that: the invention adopts the hinged ratchet and the movable ratchet, realizes that a user does not rebound when poking the starting slide rod downwards and always keeps the circuit connection state, adopts the expansion balloon to realize that the air cooling device, the pump body device or the overheating protection device is triggered when the expansion balloon becomes large and is abutted against the temperature measurement shell or the temperature measurement slide block when the temperature of the circuit board rises, and improves the current situation that the prior common circuit overheating protection device can only realize the function of overheating and cutting off the circuit and can not cool the circuit, and a plurality of circuits manually start and stop the assembly and cut off the assembly too far, thereby causing time waste when restarting the circuit.
Drawings
For ease of illustration, the invention is described in detail by the following specific examples and figures.
FIG. 1 is a schematic diagram of an overall structure of a protection device for preventing overheating of a circuit according to the present invention;
FIG. 2 is a schematic view of the structure in the direction "A-A" of FIG. 1;
FIG. 3 is a schematic view of the structure in the direction "B-B" of FIG. 1;
FIG. 4 is a schematic view of the structure in the direction "C-C" of FIG. 1;
FIG. 5 is a schematic view of the structure in the direction "D-D" of FIG. 1;
FIG. 6 is a schematic view of the structure in the direction "E-E" of FIG. 1;
FIG. 7 is an enlarged view schematically showing the structure of "F" in FIG. 1;
fig. 8 is a schematic enlarged view of the structure of "G" of fig. 1.
Detailed Description
The invention will now be described in detail with reference to fig. 1-4, for ease of description, the orientations described below will now be 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.
The invention relates to a protection device capable of preventing a circuit from overheating, which is mainly applied to the process of circuit overheating protection, and the invention is further explained by combining the attached drawings of the invention: the invention relates to a protection device capable of preventing a circuit from overheating, which comprises a shell 11, wherein a working cavity 12 is arranged in the shell 11, a temperature measuring shell 61 is fixedly arranged on the inner wall of the front side of the working cavity 12, a temperature measuring cavity 94 is arranged in the temperature measuring shell 61, an electronic circuit board can be fixed on the rear wall of the temperature measuring cavity 94, an expansion balloon 60 is arranged in the temperature measuring cavity 94, the expansion balloon 60 is close to a heating element on the electronic circuit board, when the temperature of the heating element rises, gas in the expansion balloon 60 can expand to enlarge the expansion balloon 60, an air cooling device 101 is arranged on the inner wall of the rear side of the working cavity 12, the air cooling device 101 comprises a fixed support 57 which is fixedly arranged on the inner wall of the rear side of the working cavity 12 and is symmetrical up and down, a fan shaft 58 which is rotatably connected to the fixed support 57, and a fan 59 which is fixedly arranged at the, the fan 59 is rotated to generate wind power to realize heat dissipation of a circuit board, the inner wall of the left side of the working chamber 12 is fixedly provided with the temperature measuring chamber 94, the right end of the temperature measuring chamber 94 is provided with the pump body device 102, the pump body device 102 comprises a pump body shell 14 fixedly arranged at the right end of the temperature measuring chamber 94, a pump body cavity 15 arranged in the pump body shell 14, a pump rotating shaft 69 rotatably connected to the inner wall of the rear side of the working chamber 12, a pump body plate 67 fixedly arranged at the front end of the pump rotating shaft 69, five pump body blades 13 fixedly arranged at the front end of the pump body plate 67 and distributed in an annular array, centrifugal force is generated by rotation of the pump body blades 13 to realize water delivery, the inner wall of the left side of the working chamber 12 is communicated with the outside and provided with a starting slide way 95, the starting slide rod 31 capable of sliding up and down is arranged on the starting slide way 95, and nineteen hinged, a gear shaft 86 is rotatably connected to the inner wall of the rear side of the working chamber 12, an overheating protection assembly 103 is arranged on the gear shaft 86, the overheating protection assembly 103 comprises a gear 83 fixedly arranged on the gear shaft 86 and a fixed ratchet 84 fixedly arranged at the front end of the gear 83 and capable of abutting against the hinged ratchet 89, the fixed ratchet 84 is driven to not abut against the hinged ratchet 89 any longer through the rotation of the gear 83, the starting slide rod 31 can move upwards, and a belt pulley tensioning assembly 104 capable of keeping a belt pulley tensioned all the time is arranged on the inner wall of the rear side of the working chamber 12.
Beneficially, a motor 45 is embedded in the inner wall of the right side of the working chamber 12, a motor shaft 46 is dynamically connected to the left end of the motor 45, a matching pulley shaft 49 located on the upper side of the motor shaft 46 is rotatably connected to the inner wall of the right side of the working chamber 12, a driven pulley shaft 51 located on the upper side of the matching pulley shaft 49 is rotatably connected to the inner wall of the right side of the working chamber 12, a driving bevel gear 44 is fixedly arranged on the motor shaft 46, a linkage gear shaft 73 is rotatably connected to the inner wall of the rear side of the working chamber 12, a driven bevel gear 43 engaged with the driving bevel gear 44 is fixedly arranged on the linkage gear shaft 73, and a driving bevel gear 44 located on the rear side of the driven bevel gear 43 is fixedly arranged on the.
Beneficially, connecting plate 29 has been set firmly to working chamber 12 downside outer end, connecting plate 29 right-hand member has set firmly cooling container 19, be equipped with coolant liquid storage chamber 97 in the cooling container 19, be equipped with coolant liquid 20 in the coolant liquid storage chamber 97, working chamber 12 downside inner wall has set firmly power 35, working chamber 12 rear side inner wall articulates there is articulated disc 32, dead lever 33 has set firmly on articulated disc 32, dead lever 33 with be connected with anodal electric wire 93 between the circuit board positive pole, set firmly on working chamber 12 rear side inner wall can with dead lever 33 butt and circular telegram conducting rod 36, conducting rod 36 with be connected with connecting wire 38 between the power positive pole, be connected with negative pole electric wire 37 between power 35 negative pole and the circuit board negative pole.
Beneficially, the outer end of the left side of the working chamber 12 is fixedly provided with the abutting block 23, the inner wall of the left side of the working chamber 12 is communicated with the outside and is provided with the power-off slideway 96, a liquid outlet pipe 21 extending outwards through the power-off slide way 96 is arranged in the working cavity 12, the part of the liquid outlet pipe 21 which is positioned outside can be abutted against the abutting block 23, the lower end of the part of the liquid outlet pipe 21 which is positioned outside is fixedly provided with a knocking rod 24, a sounding metal 25 which can be knocked and sounded by the knocking rod 24 is fixedly arranged on the outer side end face of the working cavity 12, a power-off spring 28 is connected between the part positioned in the working cavity 12 and the inner wall of the lower side of the working cavity 12, a starting spring 30 is connected between the starting slide rod 31 and the inner wall of the lower side of the working chamber 12, a ratchet abutting block 87 which can abut against the lower end of the hinged ratchet 89 is fixedly arranged at the left side of the starting slide rod 31, a ratchet spring 88 is connected between the hinge ratchet 89 and the left end of the actuating slide bar 31.
According to an embodiment, the air cooling device 101 is described in detail below, the air cooling device 101 further includes a secondary transmission shaft fork 56 fixed to the fan shaft 58 and located above the fan shaft 58, the driven pulley shaft 51 and the motor shaft 46 are fixedly provided with vertically symmetrical primary transmission shaft forks 54, a cross shaft 55 is connected between the primary transmission shaft fork 54 and the secondary transmission shaft fork 56, the driven pulley shaft 51 is fixedly provided with a driven pulley 53 located at the right end of the upper primary transmission shaft fork 54, the cooperating pulley shaft 49 is fixedly provided with a cooperating pulley 50, a transmission belt 52 is connected between the cooperating pulley 50 and the driven pulley 53, the motor shaft 46 is fixedly provided with a driving pulley 47 located on the right side of the driving bevel gear 44, and a connection belt 48 is connected between the driving pulley 47 and the cooperating pulley 50.
According to the embodiment, the pump device 102 is described in detail below, the pump device 102 further includes a liquid guiding tube 18 connected between the cooling liquid storage cavity 97 and the pump cavity 15, the liquid guiding tube 18 is embedded in the pump rotating shaft 69 at the position where the liquid guiding tube is connected to the pump cavity 15, the liquid guiding tube 18 in the cooling liquid storage cavity 97 is located below the liquid level of the cooling liquid 20, the pump rotating shaft 69 is fixedly provided with a pump gear 68 located at the rear side of the pump body plate 67, the left end of the matching pulley shaft 49 is fixedly provided with a main bevel gear 66, the inner wall at the rear side of the working cavity 12 is rotatably connected with a secondary bevel gear shaft 70, the secondary bevel gear shaft 70 is fixedly provided with a transmission gear 17 engaged with the pump gear 68, the secondary bevel gear shaft 70 is fixedly provided with a secondary bevel gear 16 engaged with the main bevel gear 66, the inner wall at the rear side of the working cavity 12 is fixedly provided with a cooling pipe rear plate 64, four cooling tubes 65 that cooling tube backplate 64 front end was equipped with evenly distributed admittedly, cooling tube 65 with the coolant liquid is stored and is connected with drain pipe 21 between the chamber 97, just drain pipe 21 stretches into 20 liquid level below of coolant liquid, cooling tube 65 with be connected with connecting pipe 90 between the pump body chamber 15, the rotation of pump body leaf 13 produces centrifugal force, makes coolant liquid 20 passes through coolant liquid is stored the chamber 97 pump body chamber 15 connecting pipe 90 the cooling tube 65 cools off the circuit board, flows back to coolant liquid through drain pipe 21 at last and stores the chamber 97, repeats above step, realizes the heat dissipation to the circuit board.
Advantageously, the inflatable balloon 60 is inflated by heat, and when abutting against the inner walls of the left and right sides of the temperature measuring chamber 94, the motor 45 is activated, so that the air cooling device 101 and the pump body device 102 operate, and the liquid introduction tube 18, the pump body chamber 15, the connection tube 90, and the cooling tube 65 are always filled with the cooling liquid 20 to prevent cavitation.
According to the embodiment, the details of the overheating protection assembly 103 will be described below, the overheating protection assembly 103 further includes a temperature measuring slider 62 slidably connected to the inner wall of the temperature measuring cavity 94, the temperature measuring slider 62 can abut against the expanded expansion balloon 60, a temperature measuring spring 91 is connected between the temperature measuring slider 62 and the inner wall of the lower side of the temperature measuring cavity 94 in bilateral symmetry, a temperature measuring fixing rod 92 penetrating the temperature measuring cavity 94 and extending towards the working cavity 12 is fixedly arranged at the lower end of the temperature measuring slider 62, the temperature measuring fixing rod 92 is slidably connected to the inner wall of the lower side of the temperature measuring cavity 94, a lateral moving slideway 72 facing left and right is arranged on the inner wall of the rear side of the working cavity 12, a lateral moving inclined rod 27 is slidably connected to the lateral moving inclined rod 72, a moving gear shaft 71 is rotatably connected to the front end of the lateral moving inclined rod 27, a moving gear 41 capable of engaging with the moving gear 42 is fixedly arranged on the moving gear shaft 71, the movable gear shaft 71 is fixedly provided with a main belt pulley 39 positioned at the front side of the movable gear 41, the gear shaft 86 is fixedly provided with a secondary belt pulley 82 positioned at the rear side of the gear 83, a belt 40 is connected between the secondary belt pulley 82 and the main belt pulley 39, when a circuit board is excessively heated, the expansion balloon 60 expands violently to push the temperature measuring slider 62 to move downwards, the movable gear 41 is driven to be meshed and connected with the linkage gear 42 through the temperature measuring fixing rod 92, the transverse moving inclined rod 27 and the movable gear shaft 71, and the driven bevel gear 43 rotating clockwise drives the fixed ratchet 84 to be not abutted against the hinged ratchet 89 through the belt 40, the secondary belt pulley 82, the gear shaft 86 and the gear 83.
According to the embodiment, the pulley tensioning assembly 104 is described in detail below, the pulley tensioning assembly 104 includes an adjusting slide 81 disposed on the inner wall of the rear side of the working chamber 12, an adjusting slide 80 slidably connected to the adjusting slide 81, an adjusting wheel shaft 74 rotatably connected to the adjusting slide 80, an adjusting wheel 75 fixedly connected to the front end of the adjusting wheel shaft 74, a fixed support plate 79 fixedly disposed on the inner wall of the rear side of the working chamber 12 and located at the right end of the adjusting slide 80, an adjusting spring 76 connected between the fixed support plate 79 and the adjusting slide 80, an abutting pulley shaft 78 rotatably connected to the fixed support plate 79, an abutting pulley 77 fixedly disposed at the front end of the abutting pulley shaft 78, the belt 40 abutting on the abutting pulley 77 and the adjusting wheel 75, and when the tension of the belt 40 is insufficient, the adjusting spring 76 releases elastic potential energy, the adjusting slider 80 is driven to be away from the auxiliary bevel gear shaft 70, so that the tension on the belt 40 is increased, and the stable transmission of the belt 40 is ensured.
The following detailed description of the steps of the protection device for preventing overheating of a circuit with reference to fig. 1 to 8 is provided:
initial state: the expansion balloon 60 is not abutted against the inner walls of the temperature measuring cavity 94 on the left and right sides, the expansion balloon 60 is not abutted against the temperature measuring slider 62, the movable gear 41 and the interlocking gear 42 are not meshed and connected, and the fixed rod 33 and the conductive rod 36 are not abutted.
In operation, a user dials the starting slide rod 31 downwards, the starting slide rod 31 sliding downwards drives the hinged ratchets 89 to move downwards, in the process, the starting springs 30 accumulate elastic potential energy, when the upper end of the first hinged ratchets 89 abut against the lower ends of the fixed ratchets 84, the first ratchet spring 88 accumulates elastic potential energy, when the hinged ratchets 89 accumulate downward movement, the upper ends of the adjacent hinged ratchets 89 abut against the lower ends of the fixed ratchets 84, the first ratchet spring 88 releases the elastic potential energy to drive the first hinged ratchets 89 to reset, the above processes are repeated until the user releases the starting slide rod 31, the starting slide rod 31 does not move downwards, the last hinged ratchets 89 abutting against the lower ends of the fixed ratchets 84 abut against the ratchet abutting blocks 87, and the starting slide rod 31 cannot rebound under the action of the starting springs 30, in the process, the starting slide rod 31 sliding downwards drives the fixing rod 33 to abut against the conductive rod 36 through the, electrifying the circuit board and the power supply 35, and starting the circuit board to work;
when the circuit board does not generate heat and needs to be manually closed, a user can downwards stir the liquid outlet pipe 21 to enable the liquid outlet pipe 21 to downwards slide, the power-off spring 28 accumulates elastic potential energy, the liquid outlet pipe 21 downwards sliding drives the fixed ratchet 84 to rotate through the gear 83, the fixed ratchet 84 does not limit the position of the hinged ratchet 89 any more at the moment, the starting spring 30 releases the elastic potential energy to drive the starting slide rod 31 to upwards slide and reset, the starting slide rod 31 upwards sliding drives the fixed rod 33 and the conductive rod 36 to be not abutted through the hinged disc 32, at the moment, the power supply 35 and the circuit board are powered off, and the circuit board stops working;
when the circuit board starts to generate heat, the gas in the expansion balloon 60 attached to the circuit board expands to enlarge the expansion balloon 60, when the expansion balloon 60 expands and contacts with the inner walls of the left and right sides of the temperature measurement cavity 94, the motor 45 is started to rotate the motor shaft 46, the rotating motor shaft 46 drives the fan shaft 58 on the lower side to rotate through the main transmission shaft fork 54, the cross shaft 55 and the auxiliary transmission shaft fork 56 on the lower side, so that the fan 59 on the upper side rotates, the rotating motor shaft 46 drives the matching belt wheel 50 to rotate through the connecting belt 48 in sequence, the rotating matching belt wheel 50 drives the driven belt wheel shaft 51 to rotate through the transmission belt 52 and the driven belt wheel 53 in sequence, the rotating driven belt wheel shaft 51 drives the fan shaft 58 on the upper side to rotate through the main transmission shaft fork 54, the cross shaft 55 and the auxiliary transmission shaft fork 56 in sequence, so that the fan 59 on the upper side rotates, and the rotation of the two fans 59 on, at the same time, the rotating matching belt wheel shaft 49 sequentially passes through the main bevel gear 66, the auxiliary bevel gear 16, the auxiliary bevel gear shaft 70 and the transmission gear 17 to drive the pump gear 68 to rotate anticlockwise, so as to sequentially pass through the pump rotating shaft 69 and the pump body plate 67 to drive the pump body blade 13 to rotate anticlockwise, the pump body blade 13 rotating anticlockwise generates centrifugal force to drive the cooling liquid 20 in the cooling liquid storage cavity 97 to enter the connecting pipe 90 through the liquid guiding pipe 18 and the pump body cavity 15, further the cooling liquid 20 takes away heat generated by the circuit board through the cooling pipe 65 and flows back to the cooling liquid storage cavity 97 through the liquid outlet pipe 21, when the electric heating plate is excessively serious in heating, the expansion balloon 60 accumulates and expands, the temperature measuring shell 61 is pushed to slide downwards, the temperature measuring spring 91 accumulates elastic potential energy, the temperature measuring shell 61 sliding downwards drives the temperature measuring fixing rod 92 to slide downwards, so as to, the leftward sliding traverse slope rod 27 drives the movable gear 41 to be meshed and connected with the linkage gear 42 through the movable gear shaft 71 and drives the main belt wheel 39 to move leftward, at the moment, the tension force of the belt 40 is increased to drive the adjusting slider 80 to slide downward, the adjusting spring 76 accumulates elastic potential energy, the rotating motor shaft 46 drives the linkage gear 42 to rotate clockwise through the driving bevel gear 44, the driven bevel gear 43 and the linkage gear shaft 73, the main belt wheel 39 is further driven to rotate anticlockwise through the movable gear 41 and the movable gear shaft 71, the clockwise rotating main belt wheel 39 drives the gear 83 to rotate anticlockwise through the belt 40, the auxiliary belt wheel 82 and the gear shaft 86, the anticlockwise rotating gear 83 drives the fixed ratchet 84 to rotate anticlockwise until the fixed ratchet 84 is not abutted against the hinged ratchet 89 any more, at the moment, the starting spring 30 releases the elastic potential energy to drive the starting slide rod 31 to, the upward sliding starting slide rod 31 drives the fixed rod 33 to rotate clockwise through the hinged disc 32, so that the fixed rod 33 is not abutted to the conductive rod 36, the power supply 35 and the circuit board are powered off, the circuit board stops working, meanwhile, the gear 83 which rotates anticlockwise drives the liquid outlet pipe 21 to slide downwards, the power-off spring 28 accumulates elastic potential energy, the knocking sound metal 25 is knocked by the knocking rod 24 to give a sound to remind a user that the circuit board is excessively heated, then the motor 45 is turned off, the fan stops rotating, the pump body device 102 stops working, the power-off spring 28 releases the elastic potential energy to drive the liquid outlet pipe 21 to reset and abut against the abutting block 23, when the temperature drops, the expansion balloon 60 becomes small, the temperature measuring spring 91 releases the elastic potential energy to drive the temperature measuring slide block 62 to reset, the adjusting spring 76 releases the elastic potential energy to drive the adjusting slide, The adjusting wheel 75 drives the belt 40 to expand, and then drives the transverse slope rod 27 to reset through the main belt wheel 39 and the movable gear shaft 71, and the device returns to the initial state.
The invention has the beneficial effects that: the invention adopts the hinged ratchet and the movable ratchet, realizes that a user does not rebound when poking the starting slide rod downwards and always keeps the circuit connection state, adopts the expansion balloon to realize that the air cooling device, the pump body device or the overheating protection device is triggered when the expansion balloon becomes large and is abutted against the temperature measurement shell or the temperature measurement slide block when the temperature of the circuit board rises, and improves the current situation that the prior common circuit overheating protection device can only realize the function of overheating and cutting off the circuit and can not cool the circuit, and a plurality of circuits manually start and stop the assembly and cut off the assembly too far, thereby causing time waste when restarting the circuit.
In the above manner, a person skilled in the art can make various changes depending on the operation mode within the scope of the present invention.
Claims (1)
1. A protection device capable of preventing a circuit from being overheated comprises a shell, wherein a working cavity is arranged in the shell, a temperature measurement shell is fixedly arranged on the inner wall of the front side of the working cavity, a temperature measurement cavity is arranged in the temperature measurement shell, an electronic circuit board can be fixed on the rear wall of the temperature measurement cavity, and an expansion balloon is arranged in the temperature measurement cavity; the air cooling device is arranged on the inner wall of the rear side of the working cavity and comprises a fixed support, a fan shaft and a fan, wherein the fixed support is fixedly arranged on the inner wall of the rear side of the working cavity and is symmetrical up and down, the fan shaft is rotationally connected to the fixed support, the fan is fixedly arranged at the lower end of the fan shaft and is aligned with the circuit board, the fan is rotated to generate wind power to realize heat dissipation of the circuit board, and a temperature measuring cavity is fixedly arranged on the inner wall of the left side of the working cavity; the pump body device is arranged at the right end of the temperature measuring cavity and comprises a pump body shell fixedly arranged at the right end of the temperature measuring cavity, a pump body cavity arranged in the pump body shell, a pump rotating shaft rotationally connected to the inner wall of the rear side of the working cavity, a pump body plate fixedly arranged at the tail end of the front end of the pump rotating shaft, and five pump body blades fixedly arranged at the front end of the pump body plate and distributed in an annular array manner, a starting slide way is arranged on the inner wall of the left side of the working cavity and communicated with the outside, a starting slide rod capable of sliding up and down is arranged on the starting slide way, nineteen hinged ratchets uniformly distributed up and down are hinged to the left end of the starting slide rod, and a gear; an overheating protection assembly is arranged on the gear shaft and comprises a gear fixedly arranged on the gear shaft and a fixed ratchet fixedly arranged at the front end of the gear and capable of being abutted against the hinged ratchet, and a belt wheel tensioning assembly capable of keeping a belt wheel tensioned all the time is arranged on the inner wall of the rear side of the working cavity; a motor is embedded in the inner wall of the right side of the working cavity, the left end of the motor is in power connection with a motor shaft, a matching belt pulley shaft positioned on the upper side of the motor shaft is rotatably connected to the inner wall of the right side of the working cavity, a driven belt pulley shaft positioned on the upper side of the matching belt pulley shaft is rotatably connected to the inner wall of the right side of the working cavity, a driving bevel gear is fixedly arranged on the motor shaft, a linkage gear shaft is rotatably connected to the inner wall of the rear side of the working cavity, a driven bevel gear in meshed connection with the driving bevel gear is fixedly arranged on the linkage gear shaft, and a driving bevel gear positioned on the rear side of the; a connecting plate is fixedly arranged at the outer end of the lower side of the working cavity, a cooling container is fixedly arranged at the right end of the connecting plate, a cooling liquid storage cavity is arranged in the cooling container, cooling liquid is arranged in the cooling liquid storage cavity, a power supply is fixedly arranged on the inner wall of the lower side of the working cavity, a hinged disc is hinged to the inner wall of the rear side of the working cavity, a fixed rod is fixedly arranged on the hinged disc, a positive wire is connected between the fixed rod and the positive electrode of the circuit board, a conductive rod which can be abutted against and electrified with the fixed rod is fixedly arranged on the inner wall of the rear side of the working cavity, a connecting wire is connected between the conductive rod and the positive electrode of the power; the outer end of the left side of the working cavity is fixedly provided with a butting block, the inner wall of the left side of the working cavity is communicated with the outside and is provided with a power-off slide way, a liquid outlet pipe extending outwards through the power-off slide way is arranged in the working cavity, the part of the liquid outlet pipe, which is positioned outside, can be butted with the butting block, the lower end of the part, which is positioned outside, of the liquid outlet pipe is fixedly provided with a knocking rod, a power-off spring is connected between the part, which is positioned in the working cavity, and the inner wall of the lower side of the working cavity, a starting spring is connected between the starting slide rod and the inner wall of the lower side of the working cavity, the left side of the starting slide rod is fixedly provided with a; the air cooling device further comprises an auxiliary transmission shaft fork which is fixedly arranged on the fan shaft and is positioned on the upper side of the fan shaft, main transmission shaft forks which are symmetrical up and down are fixedly arranged on the driven pulley shaft and the motor shaft, a cross shaft is connected between the main transmission shaft fork and the auxiliary transmission shaft fork, a driven pulley which is positioned at the right end of the upper main transmission shaft fork is fixedly arranged on the driven pulley shaft, a matching pulley is fixedly arranged on the matching pulley shaft, a transmission belt is connected between the matching pulley and the driven pulley, a driving pulley which is positioned on the right side of the driving bevel gear is fixedly arranged on the motor shaft, and a connecting belt is connected between the driving pulley and the matching pulley; the pump body device also comprises a liquid guiding pipe connected between the cooling liquid storage cavity and the pump body cavity, the liquid guiding pipe is connected with the pump body cavity and embedded in the pump rotating shaft, the liquid guiding pipe positioned in the cooling liquid storage cavity is positioned below the liquid level of the cooling liquid, a pump gear positioned at the rear side of the pump body plate is fixedly arranged on the pump rotating shaft, a main bevel gear is fixedly arranged at the tail end of the left end of the matching belt wheel shaft, an auxiliary bevel gear shaft is rotatably connected on the inner wall of the rear side of the working cavity, a transmission gear meshed and connected with the pump gear is fixedly arranged on the auxiliary bevel gear shaft, an auxiliary bevel gear meshed and connected with the main bevel gear is fixedly arranged on the auxiliary bevel gear shaft, a cooling pipe rear plate is fixedly arranged on the inner wall of the rear side of the working cavity, four cooling pipes uniformly distributed are fixedly arranged at the front end of the cooling pipe rear plate, and a liquid outlet pipe is connected between the cooling pipe and the cooling liquid storage cavity, the liquid outlet pipe extends into the position below the liquid level of the cooling liquid, and a connecting pipe is connected between the cooling pipe and the pump body cavity; the expansion balloon is subjected to thermal expansion, when the expansion balloon is abutted against the inner walls of the left side and the right side of the temperature measuring cavity, the motor can be started, so that the air cooling device and the pump body device work, and in order to prevent cavitation, the liquid guide pipe, the pump body cavity, the connecting pipe and the cooling pipe are required to be filled with the cooling liquid all the time; the overheating protection assembly further comprises a temperature measuring slide block which is connected to the inner wall of the temperature measuring cavity in a sliding mode, the temperature measuring slide block can be abutted to an expanded balloon, bilaterally symmetrical temperature measuring springs are connected between the temperature measuring slide block and the inner wall of the lower side of the temperature measuring cavity, a temperature measuring fixing rod which penetrates through the temperature measuring cavity and extends towards the working cavity is fixedly arranged at the lower end of the temperature measuring slide block and can be connected with the inner wall of the lower side of the temperature measuring cavity in a sliding mode, a transversely moving slide way which faces left and right is arranged on the inner wall of the rear side of the working cavity, a transversely moving inclined rod is connected to the transversely moving slide way in a sliding mode, a movable gear shaft is rotatably connected to the front end of the transversely moving inclined rod, a movable gear which can be meshed and connected with the movable gear is fixedly arranged on the movable gear shaft, a main belt pulley which is positioned on the front side of the movable gear, a belt is connected between the secondary belt wheel and the primary belt wheel; the belt wheel tensioning assembly comprises an adjusting slide way arranged on the inner wall of the rear side of the working cavity and an adjusting slide block connected to the adjusting slide way in a sliding mode, an adjusting wheel shaft is connected to the adjusting slide block in a rotating mode, an adjusting wheel is fixedly arranged at the tail end of the front end of the adjusting wheel shaft, a fixed support plate located at the right end of the adjusting slide block is fixedly arranged on the inner wall of the rear side of the working cavity, an adjusting spring is connected between the fixed support plate and the adjusting slide block, a butt belt wheel shaft is connected to the fixed support plate in a rotating mode, a butt belt wheel is fixedly arranged at the tail end of the front end of the butt belt wheel shaft, and the belt is.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911096863.2A CN110769659B (en) | 2019-11-11 | 2019-11-11 | Protection device capable of preventing circuit from overheating |
| GBGB2004852.6A GB202004852D0 (en) | 2019-11-11 | 2020-04-02 | A protection device capable of preventing circuit from overheating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911096863.2A CN110769659B (en) | 2019-11-11 | 2019-11-11 | Protection device capable of preventing circuit from overheating |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110769659A CN110769659A (en) | 2020-02-07 |
| CN110769659B true CN110769659B (en) | 2020-08-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911096863.2A Active CN110769659B (en) | 2019-11-11 | 2019-11-11 | Protection device capable of preventing circuit from overheating |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN110769659B (en) |
| GB (1) | GB202004852D0 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111092389A (en) * | 2020-02-11 | 2020-05-01 | 宁波奉化平西配电科技有限公司 | Automatic switch board of cooling |
| CN111490483A (en) * | 2020-06-12 | 2020-08-04 | 刘杏云 | Electric power cabinet heat abstractor based on centrifugal force principle |
| CN112040746A (en) * | 2020-09-10 | 2020-12-04 | 郑州妙灿智能科技有限公司 | Artificial intelligence type chip water-cooling auxiliary cooling alarm device |
| CN112040703B (en) * | 2020-09-29 | 2021-10-12 | 四川盛年同缔实业有限公司 | Energy-saving environment-friendly image display device with overheat reminding function |
| CN117198806B (en) * | 2023-11-02 | 2024-01-12 | 国网甘肃省电力公司营销服务中心 | A meticulous distribution device for intelligent user equipment |
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| CN110379591A (en) * | 2019-07-22 | 2019-10-25 | 东阳奕品新能源有限公司 | A kind of theft-prevention noise reduction transformer of included cooling function |
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2019
- 2019-11-11 CN CN201911096863.2A patent/CN110769659B/en active Active
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- 2020-04-02 GB GBGB2004852.6A patent/GB202004852D0/en not_active Ceased
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| JP2010092745A (en) * | 2008-10-09 | 2010-04-22 | Sobo Yu | Circuit protection structure performing double temperature sensing and electrical disconnection |
| US10314200B2 (en) * | 2013-01-23 | 2019-06-04 | Trane International Inc. | Variable frequency drive operation to avoid overheating |
| US10356949B2 (en) * | 2015-03-31 | 2019-07-16 | Guangdong Shenling Environmental Systems Co., Ltd. | Server rack heat sink system with combination of liquid cooling device and auxiliary heat sink device |
| CN208143689U (en) * | 2018-04-17 | 2018-11-23 | 广州市酷绘电子科技有限公司 | A kind of heat radiation wind-guiding structure in electron product |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN110769659A (en) | 2020-02-07 |
| GB202004852D0 (en) | 2020-05-20 |
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Effective date of registration: 20200710 Address after: 237400 Yuquan West Road, Chengguan Town, Huoqiu County, Lu'an, Anhui Applicant after: ANHUI LONGYUN INTELLIGENT TECHNOLOGY Co.,Ltd. Address before: No. 64, Shendu village, Dongfang Town, Jinyun County, Lishui City, Zhejiang Province Applicant before: Jinyun yepu Electronic Technology Co.,Ltd. |
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