CN110137052B - Circuit fusing protection method - Google Patents
Circuit fusing protection method Download PDFInfo
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- CN110137052B CN110137052B CN201910416120.2A CN201910416120A CN110137052B CN 110137052 B CN110137052 B CN 110137052B CN 201910416120 A CN201910416120 A CN 201910416120A CN 110137052 B CN110137052 B CN 110137052B
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- conductive
- fuse
- fusing
- block
- circuit
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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
- H01H85/20—Bases for supporting the fuse; Separate parts thereof
- H01H85/205—Electric connections to contacts on the base
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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
- H01H85/22—Intermediate or auxiliary parts for carrying, holding, or retaining fuse, co-operating with base or fixed holder, and removable therefrom for renewing the fuse
Abstract
The invention provides a circuit fusing protection method, which comprises the following steps: firstly, a user connects a wiring component in series on a live wire, the fusing rotating mechanism connects the disconnected wiring component, and a circuit is in normal operation; then, when the circuit fault current is overloaded and the temperature of the conductive fuse is raised to a certain value, the conductive fuse is automatically fused, and the connection of the conductive disk and the conductive block by the fusing rotating mechanism is automatically cut off; then, after the fault of the circuit is eliminated, the rotation constraint of the fusing rotating mechanism by the limiting mechanism is released by manually pulling; and finally, triggering elastic potential energy in the fusing and rotating mechanism to release and enable the fuses arranged in the array to rotate, enabling the fused fuses to be separated from the wiring members, simultaneously switching one of the brand new fuses into a conductive fuse and enabling the fusing and rotating mechanism to recover conduction on the wiring members, and enabling the circuit to recover to a normal operation stage.
Description
Technical Field
The invention relates to a circuit protector, in particular to a circuit fusing protection method.
Background
The fuse is one of common circuit protection components in daily life, mainly plays an overload protection role, is often connected in series with a live wire service line of a circuit, if the fuse is not correctly arranged on the live wire service line, when the circuit fails or is abnormal, the current of the circuit is overloaded, the circuit is burnt to damage an electric appliance if the circuit is light, and serious casualty accidents such as fire disaster and the like occur if the circuit is serious, if the fuse is correctly arranged on the live wire service line, the fuse can fuse and cut off the live wire when the current is abnormally increased to a certain height and heat, so that the protection function of electric equipment and the circuit is realized, the fuse is an effective, safe and reliable circuit protector, but certain inconvenience also exists in the using process of the fuse, and after the circuit is overloaded and the fuse is fused, a user needs to manually replace the fuse, because the fuse is connected in series with the live wire service line, the replacement fuse has certain danger and is very easy to cause electric shock.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide the rotary self-replacing circuit fusing protection method which is ingenious in structure, simple in principle, capable of being automatically replaced after fusing and strong in safety performance.
In order to achieve the technical purpose, the technical scheme adopted by the invention is as follows.
A circuit fusing protection method comprises the following steps:
firstly, normally operating a circuit;
s1: a user connects the wiring member in series on the live wire, the fusing rotating mechanism switches on the disconnected wiring member, and the circuit is in normal operation;
the wiring component comprises a fixed column fixedly installed between an insulating bottom plate and the closed end of an insulating shell, the fixed column and the insulating bottom plate are coaxially arranged, a conductive disc is coaxially fixed and sleeved on the fixed column, the conductive disc is arranged close to the insulating bottom plate, an annular sliding groove is coaxially formed in the end face, away from the insulating bottom plate, of the conductive disc, the annular sliding groove is used for abutting joint with one end of a fusing rotating mechanism, a first wiring terminal is fixedly arranged on the end face, close to the insulating bottom plate, of the conductive disc, the first wiring terminal movably penetrates through the insulating bottom plate and extends to the outside of the;
the wiring component also comprises a fixed block fixedly arranged on the edge position of the insulating bottom plate, an arc-shaped guide groove which is coaxially arranged with the fixed column is formed in the end face, away from the insulating bottom plate, of the fixed block, the two ends of the guide groove are opened, a conductive block which can float along the axial direction of the fixed column is arranged at the bottom of the guide groove, the conductive block is used for abutting against and butting with the other end of the fusing rotating mechanism, a second wiring terminal connected with the conductive block is fixedly arranged on the fixed block, the second wiring terminal movably penetrates through the insulating bottom plate and extends to the outside of the installation cylinder, and the;
when the fusing rotating mechanism is used for connecting the conductive disc with the conductive block, the live wire input end is connected with the live wire output end, and a main power supply is used for normally supplying power to the circuit;
(II) current overload protection stage;
s2: when the circuit fault current is overloaded and the temperature of the conductive fuse is increased to a certain value, the conductive fuse is automatically fused, and the connection of the conductive disc and the conductive block by the fusing rotating mechanism is automatically cut off;
the fusing rotary mechanism comprises a plurality of fuses which are arranged in an array along the circumferential direction of a rotating shaft of the fusing rotary mechanism, the fuses are used for conducting the inside of the fusing rotary mechanism, one fuse is a conductive fuse, and the other fuses are all new fuses waiting for replacement, the conductive fuse is connected between two disconnected contacts of the wiring member in series and enables the conducting fusing rotary mechanism to conduct the wiring member, and the fusing of the conductive fuse can automatically trigger the fusing rotary mechanism to rotate and enable one of the new fuses to be switched into the conductive fuse;
the fusing rotating mechanism comprises a circular movable frame coaxially sleeved on the fixed column in a rotating mode, and a sleeve coaxially sleeved on the fixed column in a rotating mode, wherein the movable frame is arranged close to the closed end of the insulating shell, the sleeve is positioned on one side, away from the insulating bottom plate, of the conductive disc, and is arranged at an interval between the sleeve and the conductive disc, a plurality of hollowed-out mounting frames radially arranged along the sleeve are fixedly arranged on the outer circumferential surface of the sleeve, the mounting frames are arranged in an array mode along the circumferential direction of the sleeve, preferably, the number of the mounting frames is eight, the mounting frames and the sleeve are both arranged in an insulating mode and fixedly connected into a whole, conductive sliding rods parallel to the axial direction of the fixed column are fixedly arranged between;
the conductive sliding rod is sleeved with a conductive sliding block in a sliding mode, the conductive sliding block and the conductive sliding rod form sliding guide fit along the axial direction parallel to the fixed column, the conductive sliding block and the conductive sliding rod are arranged on the damping layer, the conductive sliding block is located in the middle position of the conductive sliding rod along the axial direction in the initial state, the conductive sliding block and the mounting frame are respectively provided with a clamping port which is oppositely arranged and can be tightened, one end of the fuse is fixedly clamped in the clamping port on the conductive sliding block, the other end of the fuse is fixedly clamped in the clamping port on the mounting frame, a contact connected with the fuse is fixedly installed on the mounting frame, the contact is arranged to deviate from the conductive sliding block, and the contact is located in the;
in an initial state, a contact on one mounting frame is abutted against a conductive block, and a conductive disc is communicated with the conductive block through a corresponding conductive slide rod, a corresponding conductive slide block, a conductive fuse and a corresponding contact;
when the conductive fuse is fused, the conductive disc is automatically cut off through the corresponding conductive sliding rod, the corresponding conductive sliding block, the fused fuse, the corresponding contact and the conductive block, the fusing rotating mechanism is automatically cut off when the connecting member is conducted, the input end and the output end of the live wire are automatically disconnected, and the circuit is self-protected;
(III) automatic replacement recovery phase;
s3: after the fault of the circuit is eliminated, the rotation constraint of the limiting mechanism on the fusing rotating mechanism is released by manually pulling;
the conductive sliding rod is fixedly connected with the movable frame through a bolt, a round limiting groove is formed in one end face, close to the closed end of the insulating shell, of the screw plug, the limiting mechanism comprises a pin rod penetrating through the closed end of the insulating shell, the pin rod and the insulating shell form sliding guide fit along the axial direction parallel to the fixed column, one end of the pin rod extends outwards, a spherical handle is arranged at the end part of the pin rod, and the other end of the pin rod is inserted into the limiting groove;
an external step is arranged on the outer circular surface of the middle position of the pin rod, a compression spring is sleeved outside the pin rod, one end of the compression spring is abutted against the external step, the other end of the compression spring is abutted against the closed end of the insulating shell, and the elasticity of the compression spring always points to the external step from the closed end of the insulating shell;
when the conductive fuse is fused, a user eliminates a fault of a circuit, and then pulls the handle to overcome the elastic force of the compression spring to withdraw the pin rod from the limiting groove, so that the rotational constraint of the pin rod on the fusing rotary mechanism is removed;
s4: triggering elastic potential energy in the fusing rotating mechanism to release and enable the fuses arranged in the array to rotate, enabling the fused fuses to be separated from the wiring members, simultaneously switching one of the brand new fuses into a conductive fuse and enabling the fusing rotating mechanism to recover conduction on the wiring members, and enabling the circuit to recover to a normal operation stage;
the outer part of the conductive slide bar is movably sleeved with a trigger spring, one end of the trigger spring is abutted to the conductive slide block, the other end of the trigger spring is abutted to the mounting frame, the elastic force of the trigger spring is always directed to the conductive slide block by the mounting frame, an external boss is coaxially arranged on the outer circular surface of the fixed column, a rotary guide groove which penetrates through the external boss is formed in the outer circular surface of the external boss, the rotary guide groove is obliquely arranged, the upper end and the lower end of the rotary guide groove are twisted for forty-five degrees along the axial direction of the fixed column, a rotary bulge matched with the rotary guide groove is fixedly arranged on the conductive slide block, and;
in the recovery process, the constraint of the corresponding trigger spring by the conductive fuse is released, after a user removes a circuit fault and cancels the rotation constraint of the limiting mechanism on the fusing rotating mechanism, the elastic potential energy of the trigger spring is gradually released and pushes the corresponding conductive slider to slide along the conductive slide rod away from the mounting frame, the corresponding rotary protrusion of the conductive fuse is clamped by the lower end of the rotary guide groove, the rotary guide groove guides the rotary protrusion to rotate forty-five degrees around the axial direction of the fixed column and slide out from the upper end of the rotary guide groove, at the moment, the whole fusing rotating mechanism rotates forty-five degrees around the axial direction of the fixed column, the fused fuse and the corresponding contact rotate forty-five degrees and are separated from the conductive block, meanwhile, the brand-new fuse and the corresponding contact rotate forty-five degrees and are abutted to the conductive block, the fusing rotating mechanism automatically rotates and recovers the connection between the conductive disc and the conductive block, normal operation of the circuit is resumed.
As a further optimization or improvement of the present solution.
The length of the first wiring terminal extending out of the mounting cylinder is larger than that of the second wiring terminal extending out of the mounting cylinder.
As a further optimization or improvement of the present solution.
The outer circular surface of the conductive sliding rod is provided with a limiting sliding groove parallel to the axial direction of the conductive sliding rod, the conductive sliding block is provided with a limiting convex block matched with the limiting sliding groove, and the limiting convex block is matched with the limiting sliding groove and used for restricting the rotation of the conductive sliding block.
As a further optimization or improvement of the present solution.
And a stop block for limiting the conductive sliding block is arranged at one end, close to the mounting frame, of the external boss.
Compared with the prior art, the fuse has the advantages of ingenious structure, simple principle, automatic replacement after fusing and strong safety performance, the plurality of fusing rotating mechanisms provided with the fuses are arranged in an array along the circumferential direction, one fuse is used for connecting the live wire in series, the other fuses wait for replacement, when the fuse connected with the live wire in series is fused and a circuit fault is discharged, the fuse can automatically rotate for a certain angle and replace a brand-new fuse to connect the live wire again, the convenience of replacing the fuse is improved, and the safety performance of using the fuse is improved.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic view of the internal structure of the present invention.
Fig. 3 is a schematic structural diagram in an alternative process of the present invention.
Fig. 4 is a schematic structural diagram in an alternative process of the present invention.
Fig. 5 is a schematic structural diagram in an alternative process of the present invention.
Fig. 6 is a schematic structural view of the mounting cylinder.
Fig. 7 is a structural view of the wiring member.
FIG. 8 is a view of the wire connecting member in cooperation with the fusing rotating mechanism.
FIG. 9 is a schematic structural diagram of a fuse rotation mechanism.
FIG. 10 is a schematic diagram of a partial structure of a fuse rotation mechanism.
FIG. 11 is a schematic view of a partial structure of a fuse rotation mechanism.
FIG. 12 is a schematic diagram of a partial structure of a fuse rotation mechanism.
FIG. 13 is a schematic diagram of a partial structure of a fuse rotation mechanism.
FIG. 14 is a schematic view of a partial structure of a fuse rotation mechanism.
FIG. 15 is a view showing the combination of the stopper mechanism and the fusing mechanism.
Fig. 16 is a schematic structural view of the limiting mechanism.
Detailed Description
A circuit fusing protection method comprises the following steps:
firstly, normally operating a circuit;
s1: the user connects the wiring member 200 in series on the live wire, and the fusing rotating mechanism 300 connects the disconnected wiring member 200, and the circuit is in normal operation;
the wiring member 200 comprises a fixing column 201 fixedly installed between the insulating base plate 110 and the closed end of the insulating shell 120, the fixing column 201 and the insulating base plate 110 are coaxially arranged, a conductive disc 202 is coaxially fixedly sleeved on the fixing column 201, the conductive disc 202 is arranged close to the insulating base plate 110, an annular sliding groove 203 is coaxially formed in one end face, away from the insulating base plate 110, of the conductive disc 202, the annular sliding groove 203 is used for abutting joint with one end of the fusing rotating mechanism 300, a first wiring terminal 204 is fixedly arranged on one end face, close to the insulating base plate 110, of the conductive disc 202, the first wiring terminal 204 movably penetrates through the insulating base plate 110 and extends to the outside of the installation cylinder 100;
the wiring member 200 further comprises a fixed block 205 fixedly installed at the edge of the insulating base plate 110, an arc-shaped guide groove 206 coaxially arranged with the fixed column 201 is formed in one end face, away from the insulating base plate 110, of the fixed block 205, two ends of the guide groove 206 are opened, a conductive block 207 capable of floating along the axial direction of the fixed column 201 is arranged at the bottom of the guide groove 206, the conductive block 207 is used for abutting against and butting with the other end of the fusing rotating mechanism 300, a second wiring terminal 208 connected with the conductive block 207 is fixedly installed on the fixed block 205, the second wiring terminal 208 movably penetrates through the insulating base plate 110 and extends to the outside of the installation cylinder 100, and the second wiring terminal 208;
in the working process of the wiring component 200, the first wiring terminal 204 is connected with the input end of the live wire, the second wiring terminal 208 is connected with the output end of the live wire, when the fusing rotating mechanism 300 connects the conductive disc 202 with the conductive block 207, the input end of the live wire is connected with the output end of the live wire, and a main power supply supplies power to the circuit normally;
(II) current overload protection stage;
s2: when the circuit fault current is overloaded and the temperature of the conductive fuse 306 rises to a certain value, the conductive fuse 306 will automatically melt, and the connection of the conductive disc 202 and the conductive block 207 by the melting rotating mechanism 300 will be automatically cut off;
the blowing rotary mechanism 300 comprises a plurality of fuses 306 arranged in an array along a circumferential direction of a rotation axis thereof, the fuses 306 are used for conducting the inside of the blowing rotary mechanism 300, one fuse 306 is a conductive fuse 306, the other fuses 306 are all new fuses 306 waiting to be replaced, the conductive fuse 306 is connected in series between two disconnected contacts of the wiring member 200 and enables the conducting blowing rotary mechanism 300 to conduct the wiring member 200, and the blowing of the conductive fuse 306 can automatically trigger the blowing rotary mechanism 300 to rotate and enable one of the all new fuses 306 to be switched into the conductive fuse 306;
the fusing rotating mechanism 300 comprises a circular movable frame 301 coaxially sleeved on the fixed column 201 in a rotating mode, and a sleeve 302 coaxially sleeved on the fixed column 201 in a rotating mode, wherein the movable frame 301 is arranged close to the closed end of the insulating shell 120, the sleeve 302 is positioned on one side, away from the insulating base plate 110, of the conductive disc 202, and is arranged at a distance from the conductive disc 202, a hollowed-out mounting frame 303 arranged along the radial direction of the sleeve 302 is fixedly arranged on the outer circumferential surface of the sleeve 302, the mounting frame 303 is provided with a plurality of conductive sliding rods 304 which are arranged in an array mode along the circumferential direction of the sleeve 302, preferably, the number of the mounting frames 303 is eight, the mounting frames 303 and the sleeve 302 are both arranged in an insulating mode and fixedly connected into a whole, the conductive sliding rods 304 parallel to the axial direction of the fixed column 201;
the conductive sliding rod 304 is sleeved with a conductive sliding block 305 in a sliding manner, the conductive sliding block 305 and the conductive sliding rod 304 form sliding guide fit along an axial direction parallel to the fixed column 201, the conductive sliding block 305 and the conductive sliding rod 304 are arranged on a damping layer, the conductive sliding block 305 is positioned at the middle position of the conductive sliding rod 304 along the axial direction in an initial state, clamping ports which are oppositely arranged and can be tightened are respectively arranged on the conductive sliding block 305 and the mounting frame 303, one end of the fuse 306 is fixedly clamped in the clamping port on the conductive sliding block 305, the other end of the fuse 306 is fixedly clamped in the clamping port on the mounting frame 303, a contact 307 connected with the fuse 306 is fixedly installed on the mounting frame 303, the contact 307 is arranged away from the conductive sliding block 305, and the contact 307 is positioned on the circumferential direction of the;
in an initial state, a contact 307 on one of the mounting frames 303 abuts against the conductive block 207, and the conductive disc 203 is communicated with the conductive block 207 through the corresponding conductive sliding rod 304, the corresponding conductive sliding block 305, the conductive fuse 306 and the corresponding contact 307;
when the conductive fuse 306 is fused, the conductive disc 203 is automatically cut off through the corresponding conductive sliding rod 304, the corresponding conductive sliding block 305, the fused fuse 306, the corresponding contact 307 and the conductive block 207, the conduction of the fusing rotating mechanism 300 to the wiring member 200 is automatically cut off, the input end and the output end of a live wire are automatically disconnected, and the circuit is self-protected;
(III) automatic replacement recovery phase;
s3: after the circuit fault is eliminated, the rotation restriction of the fusing rotating mechanism 300 by the limiting mechanism 400 is released by manually pulling;
the conductive sliding rod 304 is fixedly connected with the movable frame 301 through a bolt, a round limiting groove 401 is formed in one end face, close to the closed end of the insulating shell 120, of the screw plug, the limiting mechanism 400 comprises a pin rod 403 penetrating through the closed end of the insulating shell 120, the pin rod 403 and the insulating shell 120 form sliding guide fit along an axial direction parallel to the fixed column 201, one end of the pin rod 403 extends outwards, a spherical handle 402 is arranged at the end part of the pin rod, and the other end of the pin rod is inserted into the limiting groove 401;
an external step 404 is arranged on the outer circular surface of the middle position of the pin rod 403, a compression spring 405 is sleeved outside the pin rod 403, one end of the compression spring 405 abuts against the external step 404, the other end of the compression spring abuts against the closed end of the insulating shell 120, and the elastic force of the compression spring 405 always points to the external step 404 from the closed end of the insulating shell 120;
in the working process of the limiting mechanism 400, in an initial state, the elastic force of the compression spring 405 is directed to the external step 404 from the closed end of the insulating shell 120, the pin 403 is matched with the limiting groove 401 to limit the rotation of the fusing rotating mechanism 300, after the conductive fuse 306 is fused, a user eliminates the circuit pair fault, and then the handle 402 is pulled to overcome the elastic force of the compression spring 405 to withdraw the pin 403 from the limiting groove 401, so that the rotation restriction of the pin 403 on the fusing rotating mechanism 300 is released;
s4: triggering the elastic potential energy in the fusing and rotating mechanism 300 to release and rotate the fuses 306 arranged in the array, separating the fused fuses 306 from the wiring members 200, simultaneously switching one of the brand-new fuses 306 into a conductive fuse 306 and enabling the fusing and rotating mechanism 300 to recover the conduction of the wiring members 200, and enabling the circuit to recover to the normal operation stage;
a trigger spring 308 is movably sleeved outside the conductive sliding rod 304, one end of the trigger spring 308 abuts against the conductive sliding block 305, the other end of the trigger spring abuts against the mounting frame 303, the elastic force of the trigger spring 308 always points to the conductive sliding block 305 from the mounting frame 303, an external boss 310 is coaxially arranged on the outer circular surface of the fixed column 201, a rotary guide slot 311 which penetrates through the external boss 310 is formed in the outer circular surface of the external boss 310, the rotary guide slot 311 is obliquely arranged, the upper end and the lower end of the rotary guide slot 311 are twisted for forty-five degrees along the axial direction of the fixed column 201, a rotary protrusion 309 which is matched with the rotary guide slot 311 is fixedly installed on the conductive sliding block 305, and a rotary protrusion 309 which corresponds;
during the recovery process, the constraint of the conductive fuse 306 to the corresponding trigger spring 308 is released, and after the user removes the circuit failure and cancels the rotation constraint of the limiting mechanism 400 to the fuse rotation mechanism 300, the elastic potential energy of the trigger spring 308 will gradually release and push the corresponding conductive slider 305 to slide along the conductive sliding rod 304 away from the mounting bracket 303, the corresponding rotary protrusion 309 of the conductive fuse 306 will be snapped in by the lower end of the rotary guide slot 311, the rotary guide slot 311 will guide the rotary protrusion 309 to rotate forty-five degrees around the axial direction of the fixed post 201 and slide out by the upper end of the rotary guide slot 311, at this time, the whole fuse rotation mechanism 300 will rotate forty-five degrees around the axial direction of the fixed post 201, so that the fused fuse 306 and the corresponding contact 307 rotate forty-five degrees to separate from the conductive block 207, and at the same time, the fused fuse 306 and the corresponding brand-new contact 307 rotate forty-five degrees to be abutted against the, the fuse rotation mechanism 300 automatically rotates and resumes the connection of the conductive plate 202 and the conductive block 207, resuming normal operation of the circuit.
A rotary self-replacing circuit fusing protection device comprises a cylindrical mounting barrel 100, wiring members 200 arranged in the mounting barrel 100, a fusing rotary mechanism 300 and a limiting mechanism 400, wherein the wiring members 200 are connected in series on a live wire and are in an open state, the fusing rotary mechanism 300 comprises a plurality of fuses 306 arranged in an array along the circumferential direction of a rotating shaft of the fusing rotary mechanism, the fuses 306 are used for conducting the inside of the fusing rotary mechanism 300, one fuse 306 is a conductive fuse 306, the other fuses 306 are brand-new fuses 306 waiting to be replaced, the conductive fuse 306 is connected in series between two disconnected contacts of the wiring members 200 and enables the conducting fusing rotary mechanism 300 to conduct the wiring members 200, the fusing of the conductive fuse 306 can automatically trigger the fusing rotary mechanism 300 to rotate and enable one brand-new fuse 306 to be switched into the conductive fuse 306, and the limiting mechanism 400 is used for restraining the rotation of the fusing rotary mechanism 300 and manually releasing the fusing rotary mechanism The rotation of the mechanism 300 is restricted.
When a user uses the fuse rotary mechanism 300 to connect the disconnected connecting member 200 in series with the two ends of the live wire, the circuit is in normal operation, when the circuit fault current is overloaded and the temperature of the conductive fuse 306 is raised to a certain value, the conductive fuse 306 will automatically fuse, at this time, after the circuit fault is eliminated, the rotation restriction of the fuse rotary mechanism 300 by the limiting mechanism 400 is released, the elastic potential energy in the fuse rotary mechanism 300 is triggered to be released, the fuses 306 arranged in the array are rotated, the fused fuses 306 are separated from the connecting member 200, meanwhile, one brand new fuse 306 is switched to the conductive fuse 306, the fuse 306 is connected with the connecting member 200 in series, the connecting member 200 is restored to be connected with the live wire, and the circuit restores to a normal operation stage.
The mounting cylinder 100 comprises a circular insulating base plate 110 and a cylindrical insulating shell 120 coaxially covered on one end face of the insulating base plate 110, wherein one end of the insulating shell 120 is arranged in a closed manner, the other end of the insulating shell is arranged in an open manner, and the open end is detachably connected and matched with the insulating base plate 110.
The wiring member 200 comprises a fixing column 201 fixedly installed between the insulating base plate 110 and the closed end of the insulating shell 120, the fixing column 201 and the insulating base plate 110 are coaxially arranged, a conductive disc 202 is coaxially fixed and sleeved on the fixing column 201, the conductive disc 202 is arranged close to the insulating base plate 110, an annular sliding groove 203 is coaxially formed in one end face, deviating from the insulating base plate 110, of the conductive disc 202, the annular sliding groove 203 is used for abutting joint with one end of a fusing rotating mechanism 300, a first wiring terminal 204 is fixedly arranged on one end face, close to the insulating base plate 110, of the conductive disc 202, the first wiring terminal 204 movably penetrates through the insulating base plate 110 and extends to the outside of the installation cylinder.
Specifically, the wiring member 200 further includes a fixing block 205 fixedly mounted on the edge of the insulating base plate 110, an arc-shaped guide groove 206 coaxially arranged with the fixing column 201 is formed in an end face, away from the insulating base plate 110, of the fixing block 205, two ends of the guide groove 206 are opened, a conductive block 207 capable of floating along the axial direction of the fixing column 201 is arranged at the bottom of the guide groove 206, the conductive block 207 is used for abutting against and abutting against the other end of the fusing rotating mechanism 300, a second wiring terminal 208 connected with the conductive block 207 is fixedly mounted on the fixing block 205, the second wiring terminal 208 movably penetrates through the insulating base plate 110 and extends to the outside of the mounting cylinder 100, and the second wiring terminal 208 is.
More specifically, in order to facilitate the user to distinguish the first terminal 204 from the second terminal 208, the length of the first terminal 204 extending out of the mounting cylinder 100 is greater than the length of the second terminal 208 extending out of the mounting cylinder 100.
In the working process of the wiring component 200, the first wiring terminal 204 is connected with the input end of the live wire, the second wiring terminal 208 is connected with the output end of the live wire, when the fusing rotary mechanism 300 connects the conductive disc 202 with the conductive block 207, the input end of the live wire is connected with the output end of the live wire, the main power supply supplies power to the circuit normally, after the fuse in the fusing rotary mechanism 300 is fused, the conductive disc 202 is disconnected with the conductive block 207, the input end of the live wire is disconnected with the output end of the live wire, the circuit is automatically cut off, and the self-protection effect is.
The fusing rotating mechanism 300 comprises a circular movable frame 301 coaxially sleeved on a fixed column 201 in a rotating mode, a sleeve 302 coaxially sleeved on the fixed column 201 in a rotating mode, the movable frame 301 is arranged close to the closed end of an insulating shell 120, the sleeve 302 is located on one side, away from one side of an insulating base plate 110, of a conductive disc 202, and is arranged between the sleeve 302 and the conductive disc 202 at intervals, a hollowed-out mounting frame 303 radially arranged along the sleeve 302 is fixedly arranged on the outer circular surface of the sleeve 302, the mounting frame 303 is provided with a plurality of conductive sliding rods 304 which are arranged in an array mode along the circumferential direction of the sleeve 302, preferably, the number of the mounting frame 303 is eight, the mounting frame 303 and the sleeve 302 are all arranged in an insulating mode and fixedly connected into a whole, the conductive sliding rods 304 parallel to the axial direction of the fixed column.
Specifically, in order to connect the conductive sliding rod 304 and the conductive block 207, the conductive sliding rod 304 is slidably sleeved with a conductive sliding block 305, the conductive sliding block 305 and the conductive sliding rod 304 form a sliding guiding fit along an axial direction parallel to the fixed column 201, a damping layer is arranged between the conductive sliding block 305 and the conductive sliding rod 304, the conductive sliding block 305 is located at the middle position of the conductive sliding rod 304 along the axial direction in an initial state, clamping ports which are oppositely arranged and can be tightened are respectively arranged on the conductive sliding block 305 and the mounting frame 303, the fuse 306 has one end fixedly clamped in a clamping opening on the conductive sliding block 305 and the other end fixedly clamped in a clamping opening on the mounting frame 303, a contact 307 connected with the fuse 306 is fixedly installed on the mounting frame 303, the contact 307 is arranged away from the conductive sliding block 305, and the contact 307 is located in the circumferential direction of the guide groove 306 and can slide along the guide groove 306.
More specifically, in order to connect the conductive pad 203 to the conductive block 207, the contact 307 on one of the mounting frames 303 is in contact with the conductive block 207 in the initial state, the conductive pad 203 is connected to the conductive block 207 through the corresponding conductive sliding rod 304, the corresponding conductive sliding block 305, the conductive fuse 306, and the corresponding contact 307, so as to connect the wiring member 200, and when the conductive fuse 206 is fused, the wiring member 200 is disconnected.
After the conductive fuse 306 is fused, in order to enable the whole body of the rotation mechanism 300 to be fused to rotate forty-five degrees around the axial direction of the fixing post 201 to connect the conductive plate 202 with the conductive block 207 again, the rotation mechanism 300 to be fused needs to rotate forty-five degrees around the axial direction of the fixing post 201 to enable the fused fuse 306 and the corresponding contact 307 to rotate forty-five degrees to be separated from the conductive block 207, and simultaneously, the whole body of the fuse 306 and the corresponding contact 307 to rotate forty-five degrees to be abutted against the conductive block 207 for connection, therefore, the outer movable sleeve of the conductive sliding rod 304 is provided with a trigger spring 308, one end of the trigger spring 308 abuts against the conductive sliding block 305, the other end abuts against the mounting frame 303, the elastic force of the trigger spring 308 is always directed to the conductive sliding block 305 from the mounting frame 303, an external boss 310 is coaxially arranged on the outer circumferential surface of the fixing post 201, a rotary, the rotation guiding slot 311 is arranged obliquely, and the upper and lower ends are twisted forty-five degrees along the axial direction of the fixed column 201, the conductive slider 305 is fixedly provided with a rotation protrusion 309 matched with the rotation guiding slot 311, and the rotation protrusion 309 corresponding to the conductive fuse 306 is aligned with the lower end of the rotation guiding slot 311.
Specifically, in order to avoid the deflection of the conductive sliding block 305 around the axial direction of the conductive sliding rod 304, a limiting sliding groove 304a parallel to the axial direction of the conductive sliding rod 304 is formed on the outer circumferential surface of the conductive sliding rod 304, a limiting protrusion 305a matched with the limiting sliding groove 304a is arranged on the conductive sliding block 305, and the limiting protrusion 305a is matched with the limiting sliding groove 304a to restrict the rotation of the conductive sliding block 305.
The fuse rotation mechanism 300 is embodied in the operation process that, when the conductive fuse 306 is melted, the constraint of the conductive fuse 306 to the corresponding trigger spring 308 is released, and after the user clears the circuit failure and cancels the rotation constraint of the limiting mechanism 400 to the fuse rotation mechanism 300, the elastic potential energy of the trigger spring 308 is gradually released and pushes the corresponding conductive slider 305 to slide along the conductive slide bar 304 away from the mounting rack 303, the corresponding rotary protrusion 309 of the conductive fuse 306 is snapped in by the lower end of the rotary guide slot 311, the rotary guide slot 311 guides the rotary protrusion 309 to rotate forty-five degrees around the axial direction of the fixed post 201 and slide out by the upper end of the rotary guide slot 311, and at this time, the whole of the fuse rotation mechanism 300 rotates forty-five degrees around the axial direction of the fixed post 201, so that the melted conductive fuse 306 and the corresponding contact 307 rotate forty-five degrees to separate from the conductive block 207, meanwhile, the brand-new fuse 306 and the corresponding contact 307 are rotated by forty-five degrees to be abutted against the conductive block 207 for connection, the fusing rotation mechanism 300 automatically rotates and restores the connection between the conductive disc 202 and the conductive block 207, and the normal operation of the circuit is restored.
As an optimized solution of the present invention, the rotation of the fusing rotation mechanism 300 is realized by the mutual cooperation between the rotation guide slot 311 and the rotation protrusion 309, in order to avoid the rotation angle thereof being greater than forty-five degrees and causing the corresponding contact 307 of the brand-new fuse 306 to slide along the guide slot 206 and fall off from the conductive block 207, it is necessary to ensure that the angle of each rotation of the fusing and rotating mechanism 300 is exactly forty-five degrees, and for this reason, the external boss 310 is provided with a stopper 312 for limiting the conductive slider 305 near one end of the mounting frame 303, and the significance of the scheme is that the fuse rotating mechanism 300 is ensured to rotate to forty-five degrees each time the fuse 306 is replaced, so that on one hand, the contact 307 corresponding to the brand-new fuse 306 is abutted to the conductive block 207, and on the other hand, the rotating protrusion 309 corresponding to the brand-new fuse 306 after replacement is aligned with the lower end of the rotating guide slot 311.
If the limiting mechanism 400 does not restrict the rotation of the fusing rotation mechanism 300, when the circuit fault current is overloaded, the fusing rotation mechanism 300 immediately rotates for forty-five degrees and replaces a brand-new fuse 306 after the conductive fuse 306 is fused and before the circuit fault is not cleared, which directly leads to the fusing of the brand-new fuse 306, therefore, after the conductive fuse 306 is fused, the limiting mechanism 400 temporarily restricts the rotation of the fusing rotation mechanism 300, when the circuit fault is cleared, the limiting mechanism 400 releases the rotation restriction of the fusing rotation mechanism 300, the fusing rotation mechanism 300 automatically rotates to complete the replacement of the fuse 306, and the circuit returns to normal operation.
Therefore, the conductive sliding rod 304 is fixedly connected with the movable frame 301 through a bolt, a circular limiting groove 401 is formed in one end face, close to the closed end of the insulating shell 120, of the screw plug, the limiting mechanism 400 comprises a pin 403 penetrating through the closed end of the insulating shell 120, the pin 403 and the insulating shell 120 form sliding guide fit along an axial direction parallel to the fixed column 201, one end of the pin 403 extends outwards, a spherical handle 402 is arranged at the end of the pin, the other end of the pin is inserted into the limiting groove 401, and rotation of the fusing rotating mechanism 300 is restrained through matching of the pin 403 and the limiting groove 401.
Specifically, an external step 404 is arranged on an outer circular surface of the middle position of the pin 403, a compression spring 405 is sleeved outside the pin 403, one end of the compression spring 405 is abutted against the external step 404, the other end of the compression spring is abutted against the closed end of the insulating shell 120, the elastic force of the compression spring 405 always points to the external step 404 from the closed end of the insulating shell 120, the pin 403 is abutted and pushed by the compression spring 405 to be inserted into the limiting groove 401, and rotation restraint of the fusing rotating mechanism 300 is achieved.
The specific expression of the limiting mechanism 400 in the working process is that, in an initial state, the elastic force of the compression spring 405 is directed to the external step 404 from the closed end of the insulating shell 120, the pin 403 cooperates with the limiting groove 401 to restrict the rotation of the fusing rotating mechanism 300, when the conductive fuse 306 is fused, a user eliminates the circuit pair fault, then the pull handle 402 overcomes the elastic force of the compression spring 405 to withdraw the pin 403 from the limiting groove 401, so that the rotational restriction of the pin 403 on the fusing rotating mechanism 300 is released, the fusing rotating mechanism 300 automatically rotates forty-five degrees and completes the replacement processing of the fuse 306, and the circuit returns to normal operation.
Claims (4)
1. A circuit fusing protection method comprises the following steps:
firstly, normally operating a circuit;
s1: a user connects the wiring member in series on the live wire, the fusing rotating mechanism switches on the disconnected wiring member, and the circuit is in normal operation;
the wiring component comprises a fixed column fixedly installed between an insulating bottom plate and the closed end of an insulating shell, the fixed column and the insulating bottom plate are coaxially arranged, a conductive disc is coaxially fixed and sleeved on the fixed column, the conductive disc is arranged close to the insulating bottom plate, an annular sliding groove is coaxially formed in the end face, away from the insulating bottom plate, of the conductive disc, the annular sliding groove is used for abutting joint with one end of a fusing rotating mechanism, a first wiring terminal is fixedly arranged on the end face, close to the insulating bottom plate, of the conductive disc, the first wiring terminal movably penetrates through the insulating bottom plate and extends to the outside of the;
the wiring component also comprises a fixed block fixedly arranged on the edge position of the insulating bottom plate, an arc-shaped guide groove which is coaxially arranged with the fixed column is formed in the end face, away from the insulating bottom plate, of the fixed block, the two ends of the guide groove are opened, a conductive block which can float along the axial direction of the fixed column is arranged at the bottom of the guide groove, the conductive block is used for abutting against and butting with the other end of the fusing rotating mechanism, a second wiring terminal connected with the conductive block is fixedly arranged on the fixed block, the second wiring terminal movably penetrates through the insulating bottom plate and extends to the outside of the installation cylinder, and the;
when the fusing rotating mechanism is used for connecting the conductive disc with the conductive block, the live wire input end is connected with the live wire output end, and a main power supply is used for normally supplying power to the circuit;
(II) current overload protection stage;
s2: when the circuit fault current is overloaded and the temperature of the conductive fuse is increased to a certain value, the conductive fuse is automatically fused, and the connection of the conductive disc and the conductive block by the fusing rotating mechanism is automatically cut off;
the fusing rotary mechanism comprises a plurality of fuses which are arranged in an array along the circumferential direction of a rotating shaft of the fusing rotary mechanism, the fuses are used for conducting the inside of the fusing rotary mechanism, one fuse is a conductive fuse, and the other fuses are all new fuses waiting for replacement, the conductive fuse is connected between two disconnected contacts of the wiring member in series and enables the conducting fusing rotary mechanism to conduct the wiring member, and the fusing of the conductive fuse can automatically trigger the fusing rotary mechanism to rotate and enable one of the new fuses to be switched into the conductive fuse;
the fusing rotating mechanism comprises a circular movable frame coaxially sleeved on the fixed column in a rotating mode, and sleeves coaxially sleeved on the fixed column in a rotating mode, wherein the movable frame is arranged close to the closed end of the insulating shell, the sleeves are located on one side, away from the insulating bottom plate, of the conductive disc, the sleeves and the conductive disc are arranged at intervals, a plurality of hollowed-out mounting frames radially arranged along the sleeves are fixedly arranged on the outer circumferential surface of each sleeve, the mounting frames are arranged in an array mode along the circumferential direction where the sleeves are located, the number of the mounting frames is eight, the mounting frames and the sleeves are arranged in an insulating mode and fixedly connected into a whole, conductive sliding rods parallel to the axial direction of the fixed column are fixedly arranged between the mounting;
the fuse is characterized in that a conductive sliding block is sleeved on the conductive sliding rod in a sliding mode, the conductive sliding block and the conductive sliding rod form sliding guide fit along the axial direction parallel to the fixed column, a damping layer is arranged between the conductive sliding block and the conductive sliding rod, the conductive sliding block is located in the middle position of the conductive sliding rod along the axial direction in an initial state, clamping ports which are oppositely arranged and can be tightened are formed in the conductive sliding block and the mounting frame, one end of the fuse is fixedly clamped in the clamping port in the conductive sliding block, the other end of the fuse is fixedly clamped in the clamping port in the mounting frame, a contact connected with the fuse is fixedly installed on the mounting frame, the contact is arranged to be deviated from the conductive sliding block, and the;
in an initial state, a contact on one mounting frame is abutted against a conductive block, and a conductive disc is communicated with the conductive block through a corresponding conductive slide rod, a corresponding conductive slide block, a conductive fuse and a corresponding contact;
when the conductive fuse is fused, the conductive disc is automatically cut off through the corresponding conductive sliding rod, the corresponding conductive sliding block, the fused fuse, the corresponding contact and the conductive block, the fusing rotating mechanism is automatically cut off when the connecting member is conducted, the input end and the output end of the live wire are automatically disconnected, and the circuit is self-protected;
(III) automatic replacement recovery phase;
s3: after the fault of the circuit is eliminated, the rotation constraint of the limiting mechanism on the fusing rotating mechanism is released by manually pulling;
the conductive sliding rod is fixedly connected with the movable frame through a bolt, a round limiting groove is formed in one end face, close to the closed end of the insulating shell, of the bolt, the limiting mechanism comprises a pin rod penetrating through the closed end of the insulating shell, the pin rod and the insulating shell form sliding guide fit along the axial direction parallel to the fixed column, one end of the pin rod extends outwards, a spherical handle is arranged at the end part of the pin rod, and the other end of the pin rod is inserted into the limiting groove;
when the conductive fuse is fused, a user eliminates the fault of a circuit, and then pulls the handle to overcome the elastic force of the compression spring to withdraw the pin rod from the limiting groove, so that the rotational constraint of the pin rod on the fusing rotary mechanism is removed;
s4: triggering elastic potential energy in the fusing rotating mechanism to release and enable the fuses arranged in the array to rotate, enabling the fused fuses to be separated from the wiring members, simultaneously switching one of the brand new fuses into a conductive fuse and enabling the fusing rotating mechanism to recover conduction on the wiring members, and enabling the circuit to recover to a normal operation stage;
an external step is arranged on the outer circular surface of the middle position of the pin rod, a compression spring is sleeved outside the pin rod, one end of the compression spring is abutted against the external step, the other end of the compression spring is abutted against the closed end of the insulating shell, and the elasticity of the compression spring always points to the external step from the closed end of the insulating shell;
a trigger spring is movably sleeved outside the conductive sliding rod, one end of the trigger spring is abutted with the conductive sliding block, the other end of the trigger spring is abutted with the mounting frame, and the elastic force of the trigger spring is always directed to the conductive sliding block by the mounting frame;
the outer circular surface of the fixed column is coaxially provided with an external boss, the outer circular surface of the external boss is provided with a rotary guide groove which penetrates up and down, the rotary guide groove is obliquely arranged, and the upper end and the lower end of the rotary guide groove are twisted for forty-five degrees along the axial direction of the fixed column;
the conductive sliding block is fixedly provided with a rotary bulge matched with the rotary guide groove, and the rotary bulge corresponding to the conductive fuse is aligned with the lower end of the rotary guide groove;
in the recovery process, the constraint of the corresponding trigger spring by the conductive fuse is released, after a user removes a circuit fault and cancels the rotation constraint of the limiting mechanism on the fusing rotating mechanism, the elastic potential energy of the trigger spring is gradually released and pushes the corresponding conductive slider to slide along the conductive slide rod away from the mounting frame, the corresponding rotary protrusion of the conductive fuse is clamped by the lower end of the rotary guide groove, the rotary guide groove guides the rotary protrusion to rotate forty-five degrees around the axial direction of the fixed column and slide out from the upper end of the rotary guide groove, at the moment, the whole fusing rotating mechanism rotates forty-five degrees around the axial direction of the fixed column, the fused fuse and the corresponding contact rotate forty-five degrees and are separated from the conductive block, meanwhile, the brand-new fuse and the corresponding contact rotate forty-five degrees and are abutted to the conductive block, the fusing rotating mechanism automatically rotates and recovers the connection between the conductive disc and the conductive block, normal operation of the circuit is resumed.
2. A circuit fusing protection method as claimed in claim 1, wherein the length of the first terminal post extending out of the mounting cylinder is greater than the length of the second terminal post extending out of the mounting cylinder.
3. The method according to claim 1, wherein a limiting sliding groove is formed on an outer circumferential surface of the conductive sliding rod and parallel to an axial direction of the conductive sliding rod, a limiting protrusion is disposed on the conductive sliding block and matched with the limiting sliding groove, and the limiting protrusion is matched with the limiting sliding groove to restrict rotation of the conductive sliding block.
4. A circuit fusing protection method according to claim 3, wherein a stop is provided at one end of the external boss near the mounting bracket for limiting the conductive slider.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910416120.2A CN110137052B (en) | 2019-05-19 | 2019-05-19 | Circuit fusing protection method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910416120.2A CN110137052B (en) | 2019-05-19 | 2019-05-19 | Circuit fusing protection method |
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| CN110137052A CN110137052A (en) | 2019-08-16 |
| CN110137052B true CN110137052B (en) | 2020-12-11 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110768202A (en) * | 2019-10-31 | 2020-02-07 | 徐州泉宝电气设备有限公司 | Novel safety device suitable for electrical equipment |
| CN111398742B (en) * | 2020-06-04 | 2020-10-16 | 广东电网有限责任公司东莞供电局 | Power distribution network fault detection device and method |
| CN112117169B (en) * | 2020-11-23 | 2021-04-30 | 杭州波普电器有限公司 | Switch with circuit protection function |
| CN113189380A (en) * | 2021-05-05 | 2021-07-30 | 韩芳 | Application method of intelligent electric meter |
| CN115800021B (en) * | 2022-12-01 | 2024-01-12 | 国网江苏省电力有限公司南通供电分公司 | Switch cabinet with circuit fusing structure and fusing method thereof |
| CN116092896A (en) * | 2023-03-14 | 2023-05-09 | 国网黑龙江省电力有限公司红兴隆供电分公司 | Fuse and fusing repair method |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US500248A (en) * | 1893-06-27 | Fusible cut-out | ||
| DE369833C (en) * | 1921-11-23 | 1923-02-23 | Carl Plaschke | Automatic multiple locking screw plug for electrical power lines |
| CN87215783U (en) * | 1987-11-27 | 1988-08-10 | 李振恒 | Fuse and interrupter group |
| US5475357A (en) * | 1994-01-13 | 1995-12-12 | Chien; Ming-Chyan | Fuse assembly |
| CN205564693U (en) * | 2016-02-23 | 2016-09-07 | 东莞市长淞电子科技有限公司 | Can rotate repetitious usage's fusing device |
| CN105895467B (en) * | 2016-05-18 | 2017-12-26 | 新昌县兴旺轴承有限公司 | Fast quick-recovery fuse |
| CN107086165B (en) * | 2017-06-26 | 2018-12-07 | 董雪霞 | Rotary multichannel fuse |
| CN208271823U (en) * | 2018-04-27 | 2018-12-21 | 藤泽电工（上海）有限公司 | A kind of Thermal Cutoffs switching device |
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Effective date of registration: 20201126 Address after: No. 131, Wenchang East Road, Chengdong high tech Industrial Park, Taixing City, Taizhou City, Jiangsu Province Applicant after: JIANGSU COSINE ELECTRIC Co.,Ltd. Address before: 230000 Yulan Mansion Building 302, Xiyou Road, Shushan District, Hefei City, Anhui Province Applicant before: Zhang Jiaxia |
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Denomination of invention: Circuit fusing protection method Effective date of registration: 20220107 Granted publication date: 20201211 Pledgee: Taixing sub branch of Bank of Nanjing Co.,Ltd. Pledgor: JIANGSU COSINE ELECTRIC CO.,LTD. Registration number: Y2022980000201 |
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Date of cancellation: 20230519 Granted publication date: 20201211 Pledgee: Taixing sub branch of Bank of Nanjing Co.,Ltd. Pledgor: JIANGSU COSINE ELECTRIC CO.,LTD. Registration number: Y2022980000201 |