CN109192634B - Pop-up high-voltage fuse - Google Patents
Pop-up high-voltage fuse Download PDFInfo
- Publication number
- CN109192634B CN109192634B CN201811251642.3A CN201811251642A CN109192634B CN 109192634 B CN109192634 B CN 109192634B CN 201811251642 A CN201811251642 A CN 201811251642A CN 109192634 B CN109192634 B CN 109192634B
- Authority
- CN
- China
- Prior art keywords
- tube
- fixed
- fuse
- copper bar
- pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- 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
- H01H85/04—Fuses, i.e. expendable parts of the protective device, e.g. cartridges
- H01H85/041—Fuses, i.e. expendable parts of the protective device, e.g. cartridges characterised by the type
- H01H85/042—General constructions or structure of high voltage fuses, i.e. above 1000 V
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Fuses (AREA)
Abstract
The utility model provides a pop-up high voltage fuse, including shell body and fuse tube, the fuse tube runs through the shell body at least partially, the fuse tube includes fixed pipe and movable pipe, be provided with screens lock joint spare between fixed pipe one side and the shell body, fixed pipe inserts in the shell body, and both pass through screens lock joint spare interconnect, be provided with compression spring and spacing cooperation spare between movable pipe and the fixed pipe, compression spring cover is established in the outside of movable pipe, the movable pipe inserts in the fixed pipe through spacing cooperation spare extrusion, fixed pipe top is stretched out to movable pipe part, another part of movable pipe is located fixed intraductal and compresses tightly compression spring, be provided with the fuse in the movable pipe, the movable pipe pops out outside the fixed pipe downwards through compression spring when the fuse fuses, and the fixed pipe passes through screens lock joint cooperation spare to be fixed in the shell body. The invention is used in the sealing box on the outdoor column, is convenient for extracting the fuse tube on the ground and replacing the fuse wire on the ground, reduces the exposed contact of the fuse wire, reduces the failure rate and improves the reliability.
Description
Technical Field
The invention relates to a pop-up high-voltage fuse which is mainly applied to an outdoor column sealing box.
Background
The drop-out fuse used by the traditional transformer has the advantages of simplicity, economy, obvious disconnection and the like, and is widely applied for a long time. The device is still the main protection and switching equipment of transformer stations on urban and rural power distribution network columns. However, as a plurality of contacts are exposed outside for a long time, the fault rate is high, and the reliability of the urban and rural distribution network is improved. The Chinese patent document No. CN226474Y discloses a small-capacity pop-up fuse in the 10 th month 5 th 1997, the small-capacity pop-up fuse comprises an insulator and a wiring terminal connected with a fixed contact and a movable contact which are arranged in the insulator, wherein sealing covers are arranged on the insulator, clamping grooves matched with clamping rods are arranged in the lower sealing covers, a melt pipe which is provided with a shielding plate and a sign is inserted into the insulator and is contacted with the fixed contact, a fuse is arranged in the melt pipe, a lower tail wire of the fuse is fixed after being pulled out of the melt pipe, a second-stage pull rod is movably arranged at the lower end of the sign, a pull-out spring which forms a folding structure is arranged at the rotating shaft of the sign and at the top end of the sign, the lower tail wire of the fuse is pulled out of the melt pipe, the second-stage pull rod is rotated by 180 degrees clockwise to be screwed into the sign before being fixed, then the sign and the second-stage pull rod are rotated by 90 degrees, the lower tail wire of the fuse is used for pressing the pull rod on the sign, and the lower tail wire is fixed on a fixed screw; the upper sealing cover of the insulator is provided with a sealing mechanism between the fixed screw cap and the screw rod when the fixed contact is fixed, and the structure can also replace the traditional drop-out fuse. Therefore, further improvements are needed.
Disclosure of Invention
The invention aims to provide a pop-up high-voltage fuse which is reasonable in structural arrangement, low in manufacturing cost, simple and flexible to install and easy to replace a fuse wire, so as to overcome the defects in the prior art.
According to the technical scheme, the pop-up high-voltage fuse comprises an outer shell and a fuse tube, wherein the fuse tube at least partially penetrates through the outer shell, the fuse tube comprises a fixed tube and a movable tube, a clamping buckling matching piece is arranged between one side of the fixed tube and the outer shell, the fixed tube is inserted into the outer shell and is buckled with the fixed tube through the clamping buckling matching piece in a mutually connecting mode, a compression spring and a limiting matching piece are arranged between the movable tube and the fixed tube, the compression spring is sleeved outside the movable tube, the movable tube is extruded and inserted into the fixed tube through the limiting matching piece, one part of the movable tube extends out of the top end of the fixed tube and penetrates through the top end of the outer shell, the other part of the movable tube is positioned in the fixed tube and compresses the compression spring, a fuse wire is arranged in the movable tube, one end of the fuse wire is fixed at the top end of the movable tube, the other end of the fuse wire extends out of the movable tube and is fixed at one side of the fixed tube, the movable tube is compressed and compresses the compression spring in the fixed tube when the fuse wire is tensioned, the movable tube is downwards popped out of the fixed tube through the compression spring, and the fixed tube is fixed in the outer shell through the clamping buckling matching piece when the fuse wire is fused. After the fuse wire is disconnected, the fuse wire is divided into two sections, one section of the fuse wire is still connected with the movable pipe, and the other section of the fuse wire is connected with the fixed pipe. The movable tube in the fuse tube is ejected downward by the action of the compression spring force. At this time, the fixed tube in the fuse tube still can be connected with the outer shell through the clamping buckle matching piece, so that the fixed tube can not fall out of the outer shell.
The limiting matching piece comprises limiting bosses arranged on the movable pipe, limiting bosses are arranged on two sides in the fixed pipe and correspond to the limiting bosses respectively, the outer diameter of each limiting boss is larger than the distance between the limiting bosses on two sides, the limiting bosses penetrate through the limiting bosses on two sides in the fixed pipe in a extrusion mode, and when the movable pipe is inserted into the fixed pipe, the movable pipe cannot fall out of the fixed pipe outwards.
The limiting boss sleeve is provided with a compression spring, the compression spring is limited on the limiting boss, the movable tube compresses the compression spring in the fixed tube through the limiting boss, the movable tube is downwards ejected out of the fixed tube, the limiting boss and the limiting convex block are in limiting contact with each other, the movable tube is ensured not to drop out of the fixed tube when the movable tube is ejected out of the fixed tube, and the whole fuse tube is ensured not to drop out of the outer shell.
The clamping buckle matching piece comprises a buckle, a latch and a clamping key, wherein the buckle and the latch are arranged on the outer shell, the clamping key is arranged on the fixed pipe and is provided with a limiting groove used for clamping the clamping key, the clamping key moves up and down in the outer shell through the fixed pipe and is in contact with the latch and the buckle, the clamping key contacts the latch upwards and rotates in the latch in a limiting way, the clamping key contacts the buckle downwards and is clamped in the limiting groove through rotation, or the clamping key is separated from the limiting groove through rotation.
The shell is provided with a clamping sleeve, a plurality of buckles and a plurality of mutually connected clamping teeth are arranged in the clamping sleeve, the plurality of buckles and the clamping teeth are annularly distributed in the clamping sleeve, and the clamping teeth are positioned above the buckles; the outside of the fixed pipe is provided with a plurality of clamping keys corresponding to the buckles and the clamping teeth, the plurality of clamping keys are annularly distributed on the outside of the fixed pipe, and the fixed pipe and the outer shell are mutually connected and buckled or separated through annularly distributed clamping, buckles and clamping teeth. When the fixed tube is inserted into the outer shell, the fixed tube of the fuse tube is pushed upwards by a tool, the clamping key rotates anticlockwise and stops in the clamping teeth of the clamping sleeve when touching the clamping teeth of the clamping sleeve, at the moment, the tool is downwards loosened to separate the fixed tube of the fuse tube from the fixed tube, the fixed tube of the fuse tube slides downwards, the clamping key touches the clamping buckle of the clamping sleeve, the clamping key rotates anticlockwise again and slides downwards to be fixed in the clamping buckle, and the fixed tube and the outer shell are installed; when the fixed tube breaks away from the shell body, the fixed tube of the fuse tube is pushed upwards towards the shell body by the tool, when the clamping key touches the clamping teeth of the clamping sleeve, the tool rotates anticlockwise and stops in the clamping teeth of the clamping sleeve, at the moment, the tool is loosened downwards, the fuse tube slides downwards, the clamping key touches the clamping buckle of the clamping sleeve, the clamping key rotates anticlockwise again and breaks away from the clamping sleeve of the shell body along with the tool, and the fixed tube is detached and separated from the shell body.
The movable tube and the fixed tube are respectively provided with an opening part which is mutually communicated, and the fuse wire extends out of the movable tube and the fixed tube through the opening parts.
The fuse wire penetrates into the movable tube and is fixed on the upper contact, the upper contact and the upper contact copper bar are in abutting contact with each other, and the other end of the fuse wire extends out of the movable tube and the fixed tube and is fixed on the lower contact; the fixed pipe and the movable pipe are inserted into the shell, wherein the movable pipe penetrates through the lower contact copper bar, the lower contact is limited on the lower contact copper bar and is in mutual abutting contact with the lower contact copper bar, the upper contact copper bar and the lower contact copper bar are respectively conducted by the fuse wire through the upper contact and the lower contact, and the wire of the upper contact copper bar and the wire of the lower contact copper bar are respectively connected and conducted with the fuse wire.
The upper contact and the top end of the movable tube are in threaded connection and clamp the fuse, and the upper contact and the movable tube tightly fasten the head of the fuse, so that the fuse is fixed and achieves good electric conduction. An upper reset spring is arranged on one side of the upper contact copper bar, the upper contact and the other side of the upper contact copper bar are in abutting contact with each other, and the upper contact penetrates through the top end of the outer shell so as to drive the upper contact copper bar to upwards extrude the upper reset spring.
The upper contact at the top end of the movable tube is inserted into the shell upwards, and the upper contact drives the upper contact copper bar to press the upper return spring towards the screw head of the screw so as to enable the upper contact copper bar to keep downward pressure.
The lower contact copper bar is characterized in that one side of the lower contact copper bar is provided with a lower reset spring, the other sides of the lower contact copper bar and the lower contact copper bar are in abutting contact with each other, the fixed tube is inserted into the outer shell, a part of the movable tube extending out of the fixed tube penetrates through the lower contact, the lower contact copper bar and the lower reset spring, the lower contact is inserted into the outer shell upwards through the fixed tube so as to drive the lower contact copper bar to upwards extrude the lower reset spring, and the lower contact compresses the lower reset spring through the lower contact copper bar, so that the lower contact copper bar keeps downward pressure.
The invention is used in the sealing box on the outdoor column, is convenient for extracting the fuse tube on the ground and replacing the fuse wire on the ground, reduces exposed contacts, reduces failure rate and improves reliability. The fixed pipe and the outer shell are provided with clamping and buckling matching pieces, even if the fuse wire is broken and then is separated into two parts, when the movable pipe is ejected out of the fixed pipe, the fixed pipe still can be connected with the outer shell through the clamping and buckling matching pieces, the fixed pipe is ensured not to fall out of the outer shell, and a limiting matching piece is arranged between the movable pipe and the fixed pipe, even if the movable pipe is ejected out of the fixed pipe, the movable pipe cannot fall out of the fixed pipe.
Drawings
Fig. 1 is a schematic plan view of a fuse according to an embodiment of the present invention.
Fig. 2 is a schematic plan view of an outer housing of a fuse according to an embodiment of the present invention.
Fig. 3 is a schematic view showing an inner structure of an outer case fuse of the fuse according to an embodiment of the present invention.
Fig. 4 is a perspective view showing the internal structure of a ferrule of an outer housing according to an embodiment of the present invention.
Fig. 5 is a plan view showing the internal structure of the ferrule of the outer housing according to an embodiment of the present invention.
Fig. 6 is a schematic view showing that the latch of the outer housing of the present invention is respectively engaged with the latch key.
Fig. 7 is a schematic plan view of a fuse tube of a fuse according to an embodiment of the present invention.
Fig. 8 is a schematic perspective view of a fuse tube of a fuse according to an embodiment of the present invention.
Fig. 9 is a schematic view showing an internal structure of a fuse tube of a fuse according to an embodiment of the present invention.
Fig. 10 is a schematic view showing an internal structure of a fuse tube of a fuse according to an embodiment of the present invention inserted into an outer case.
Fig. 11 is a schematic diagram illustrating an internal structure of a fuse of the fuse according to an embodiment of the present invention.
Fig. 12 is a schematic structural view of a spacing fitting between a movable tube and a fixed tube according to an embodiment of the present invention.
Fig. 13 is an enlarged view at a in fig. 12.
In the figure, 1 is an outer shell, 1.1 is a clamping sleeve, 1.2 is a buckle, 1.3 is a clamping tooth, 1.4 is an upper contact copper bar, 1.5 is an upper return spring, 1.6 is a screw, 1.7 is a lower contact copper bar, 1.8 is a lower return spring, 1.9 is a limit groove, 2 is a fuse tube, 2.1 is a fixed tube, 2.2 is a movable tube, 2.3 is a compression spring, 2.4 is a fuse wire, 2.5 is a clamping key, 2.6 is an upper contact, 2.7 is a lower contact and 2.8 is an opening.
Detailed Description
The invention is further described below with reference to the drawings and examples.
Referring to fig. 1-3, a pop-up high voltage fuse includes an outer housing 1 and a fuse tube 2, the fuse tube 2 at least partially penetrates through the outer housing 1, the fuse tube 2 includes a fixed tube 2.1 and a movable tube 2.2, a clamping buckle fitting member is disposed between one side of the fixed tube 2.1 and the outer housing 1, the fixed tube 2.1 is inserted into the outer housing 1 and is mutually connected and buckled through the clamping buckle fitting member, a compression spring 2.3 and a limiting fitting member are disposed between the movable tube 2.2 and the fixed tube 2.1, the compression spring 2.3 is sleeved outside the movable tube 2.2, the movable tube 2.2 is inserted into the fixed tube 2.1 through the limiting fitting member, one part of the movable tube 2.2 extends out of the top of the fixed tube 2.1 and penetrates through the top of the outer housing 1, the other part of the movable tube 2.2 is located in the fixed tube 2.1 and compresses the compression spring 2.3, a fuse 2.4 is disposed in the movable tube 2.2, one end of the fuse 2.4 is fixed at the top of the movable tube 2.2 through the clamping buckle fitting member, and the other end of the fuse 2.4 is fixed at the other end of the movable tube 2.2.2 through the clamping buckle fitting member. The outer housing 1 and the fuse tube 2 are made of a high-strength insulating material.
Further, the limiting matching piece comprises limiting bosses 2.9 arranged on the movable pipe 2.2, limiting protruding blocks 2.10 are arranged on two sides in the fixed pipe 2.1 and correspond to the limiting bosses 2.9 respectively, the outer diameter of each limiting boss 2.9 is larger than the distance between the limiting protruding blocks 2.10 on two sides, and the limiting bosses 2.9 pass through the limiting protruding blocks 2.10 on two sides in the fixed pipe 2.1 in an extrusion mode.
Further, the limiting boss 2.9 is sleeved with the compression spring 2.3, the compression spring 2.3 is limited on the limiting boss 2.9, the movable tube 2.2 is compressed and compressed in the fixed tube 2.1 through the limiting boss 2.9, the movable tube 2.2 is ejected out of the fixed tube 2.1 downwards, and the limiting boss 2.9 and the limiting protruding block 2.10 are in limiting contact with each other.
Further, the clamping buckle matching piece comprises a buckle 1.2, a latch 1.3 and a clamping key 2.5, wherein the buckle 1.2 is arranged on the outer shell body 1, the clamping key 2.5 is arranged on the fixed pipe 2.1, a limiting groove 1.9 for clamping the clamping key 2.5 is formed in the buckle 1.2, the clamping key 2.5 moves up and down in the outer shell body 1 through the fixed pipe 2.1 so as to be in contact with the latch 1.3 and the buckle 1.2, the clamping key 2.5 contacts with the latch 1.3 upwards and is limited to rotate in the latch 1.3, the clamping key 2.5 contacts with the buckle 1.2 downwards and is clamped in the limiting groove 1.9 through rotation, or the clamping key 2.5 is separated from the limiting groove 1.9 through rotation.
Further, the outer shell 1 is provided with a clamping sleeve 1.1, a plurality of buckles 1.2 and a plurality of mutually connected clamping teeth 1.3 are arranged in the clamping sleeve 1.1, the plurality of buckles 1.2 and the clamping teeth 1.3 are annularly distributed in the clamping sleeve 1.1, and the clamping teeth 1.3 are positioned above the buckles 1.2; the outside of the fixed pipe 2.1 is provided with a plurality of clamping keys 2.5 corresponding to the clamping buckles 1.2 and the clamping teeth 1.3, the plurality of clamping keys 2.5 are distributed on the outside of the fixed pipe 2.1 in a ring shape, and the fixed pipe 2.1 and the outer shell 1 are buckled or separated through the clamping keys 2.5, the clamping buckles 1.2 and the clamping teeth 1.3 which are distributed in a ring shape.
Further, the movable tube 2.2 and the fixed tube 2.1 are respectively provided with an opening 2.8 which is communicated with each other, and the fuse 2.4 extends out of the movable tube 2.2 and the fixed tube 2.1 through the opening 2.8.
Further, a lower contact 2.7 is arranged at the top end of the fixed tube 2.1, an upper contact 2.6 is arranged at the top end of the movable tube 2.2, an upper contact copper bar 1.4 is arranged at the outer shell 1 corresponding to the upper contact 2.6, a lower contact copper bar 1.7 is arranged at the outer shell 1 corresponding to the lower contact 2.7, a fuse wire 2.4 penetrates into the movable tube 2.2 and is fixed on the upper contact 2.6, the upper contact 2.6 and the upper contact copper bar 1.4 are in abutting contact with each other, and the other end of the fuse wire 2.4 extends out of the movable tube 2.2 and the fixed tube 2.1 and is fixed on the lower contact 2.7; the fixed tube 2.1 and the movable tube 2.2 are inserted into the outer shell 1, wherein the movable tube 2.2 penetrates through the lower contact copper bar 1.7, the lower contact 2.7 is limited on the lower contact copper bar 1.7 and is in abutting contact with the lower contact copper bar 1.7, the fuse 2.4 is respectively connected with the upper contact copper bar 1.4 and the lower contact copper bar 1.7 through the upper contact 2.6 and the lower contact 2.7, and the lead wire of the upper contact copper bar 1.4 and the lead wire of the lower contact copper bar 1.7 are respectively connected with the fuse 2.4 and are respectively connected with each other.
Further, the top ends of the upper contact 2.6 and the movable tube 2.2 are in threaded connection and clamp the fuse 2.4, one side of the upper contact copper bar 1.4 is provided with an upper reset spring 1.5, the other sides of the upper contact 2.6 and the upper contact copper bar 1.4 are in abutting contact with each other, and the upper contact 2.6 penetrates through the top end of the outer shell 1 to drive the upper contact copper bar 1.4 to upwards press the upper reset spring 1.5.
Further, the outer shell 1 and the upper contact copper bar 1.4 are connected with each other through a screw 1.6, the upper return spring 1.5 is sleeved on the outer side of the screw 1.6, one side of the upper return spring 1.5 is in limit fit with the screw head of the screw 1.6, the other side of the upper return spring 1.5 is in limit fit with the upper contact copper bar 1.4, the upper contact 2.6 at the top end of the movable tube 2.2 is inserted into the outer shell 1 upwards, and the upper contact 2.6 drives the upper contact copper bar 1.4 to press the upper return spring 1.5 towards the screw head of the screw 1.6.
Further, a lower return spring 1.8 is arranged at one side of the lower contact copper bar 1.7, the lower contact 2.7 and the other side of the lower contact copper bar 1.7 are in abutting contact with each other, the fixed tube 2.1 is inserted into the outer shell 1, wherein the part of the movable tube 2.2 extending out of the fixed tube 2.1 penetrates through the lower contact 2.7, the lower contact copper bar 1.7 and the lower return spring 1.8, the lower contact 2.7 is inserted into the outer shell 1 upwards through the fixed tube 2.1 so as to drive the lower contact copper bar 1.7 to press the lower return spring 1.8 upwards, and the lower contact 2.7 presses the lower return spring 1.8 through the lower contact copper bar 1.7.
Specifically: inserting a movable tube 2.2 with a fuse wire 2.4, a compression spring 2.3 and an upper contact 2.6 into a fixed tube 2.1 with a lower contact 2.7, compressing the compression spring 2.3 by the movable tube 2.2 in the fixed tube 2.1, inserting the movable tube 2.2 and the fixed tube 2.1 into an outer shell 1, respectively penetrating the lower contact 2.7, the lower contact copper bar 1.7 and the lower return spring 1.8 in the outer shell 1 by the movable tube 2.2 and the upper contact 2.6, and upwards contacting the upper contact copper bar 1.4 by the upper contact 2.6 so as to compress the upper return spring 1.5; the lower contact 2.7 of the fixed tube 2.1 contacts the lower contact copper bar 1.7 in the outer housing 1 upwards, thereby compressing the lower return spring 1.8. When overload or short circuit occurs in the circuit and the fuse wire 2.4 is fused, the movable tube 2.2 pops out of the fixed tube 2.1 downwards through the compression spring 2.3, at the moment, the upper contact 2.6 and the upper contact copper bar 1.4 are separated from each other, and the upper reset spring 1.5 resets; wherein the fixed tube 2.1 and the outer shell 1 are mutually buckled, so that the fixed tube 2.1 cannot fall out of the outer shell 1 when the movable tube 2.2 pops up; and a limiting matching piece is arranged between the movable tube 2.2 and the fixed tube 2.1, so that the fixed tube 2.1 cannot fall out when the tube 2.2 pops up.
The working principle is as follows: when an operator installs the fuse wire 2.4 in the fuse wire tube 2 on the ground, firstly, the upper contact 2.6 of the movable tube 2.2 without the fuse wire 2.4 is screwed out by hand, knurling is arranged on the outer side of the upper contact 2.6, the fuse wire 2.6 is conveniently screwed out by hand holding force with gloves, after the fuse wire 2.6 is screwed out, the movable tube 2.2 with the compression spring 2.3 is pushed upwards into the fixed tube 2.1 (namely, the movable tube 2.2 is inserted into the fixed tube 2.1 upwards), the compression spring 2.3 is completely compressed in the fixed tube 2.1 by the movable tube 2.2, the fuse wire 2.4 is drawn out from the openings 2.8 of the movable tube 2.2 and the fixed tube 2.1 respectively, and the fuse wire is tensioned to the threaded holes of the lower contact 2.7 to be fixed by screws.
When an operator installs the fuse tube 2 on the ground and fixes the fuse tube 2 on the high-altitude outer shell 1, the fixed tube 2.1 of the fuse tube 2 is pushed upwards by a tool, when the clamping key 2.5 touches the clamping tooth 1.3 of the clamping sleeve 1.1, the clamping key rotates anticlockwise and stops in the clamping tooth 1.3 of the clamping sleeve 1.1, at the moment, the tool loosens the fixed tube 2.1 of the fuse tube 2 downwards, the tool is separated from the fixed tube 2.1, the fixed tube 2.1 of the fuse tube 2 slides downwards, the clamping key 2.5 touches the clamping buckle 1.2 of the clamping sleeve 1.1, and the clamping key 2.5 rotates anticlockwise again and slides downwards to be fixed in the limiting groove 1.9 of the clamping sleeve 1.2, so that the fixed tube 2.1 and the outer shell 1 are mutually fastened.
When an operator needs to detach the fuse tube 2 on the ground, the fixed tube 2.1 of the fuse tube 2 is pushed upwards into the outer shell 1 by a tool, when the clamping key 2.5 touches the clamping teeth 1.3 of the clamping sleeve 1.1, anticlockwise rotation occurs and stops in the clamping teeth 1.3 of the clamping sleeve 1.1, the tool is released downwards at this time, the fuse tube 2 slides downwards, the clamping key 2.5 touches the clamping buckle 1.2 of the clamping sleeve 1.1, and the clamping key 2.5 rotates anticlockwise again and is separated from the clamping sleeve 1.1 of the outer shell 1 along with the tool, so that the fixed tube 2.1 and the outer shell 1 are separated from each other. The process of the detent key 2.5 contacting the latch 1.3 and the catch 1.2 respectively is shown by the arrow in fig. 6.
The foregoing is a preferred embodiment of the invention showing and describing the general principles, features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the foregoing embodiments, which have been described in the foregoing description merely illustrates the principles of the invention, and that various changes and modifications may be made therein without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. The utility model provides a pop-up high voltage fuse, including shell body (1) and fuse tube (2), fuse tube (2) runs through shell body (1) at least partially, characterized by fuse tube (2) are including fixed pipe (2.1) and movable pipe (2.2), be provided with screens lock fit piece between fixed pipe (2.1) one side and shell body (1), fixed pipe (2.1) inserts shell body (1), and both pass through screens lock fit piece interconnect lock, be provided with compression spring (2.3) and spacing cooperation piece between movable pipe (2.2) and fixed pipe (2.1), compression spring (2.3) sleeve is established in the outside of movable pipe (2.2), movable pipe (2.2) are through spacing cooperation piece extrusion insertion fixed pipe (2.1) in, movable pipe (2.2) one portion stretches out fixed pipe (2.1) top and runs through shell body (1), movable pipe (2.2) another part is located fixed pipe (2.1) and compresses tightly the fuse wire (2.3) and stretches out at one side of movable pipe (2.2.2) outside fixed pipe (2.2), the fuse wire (2.4) is stretched out at the fixed pipe (2.4.2) outside of movable pipe (2.2) and is fixed at the fixed pipe (2.2.1), the fixed pipe (2.1) is fixed in the outer shell (1) through the clamping buckle matching piece.
2. The pop-up high-voltage fuse of claim 1, wherein the limit matching piece comprises limit bosses (2.9) arranged on the movable tube (2.2), limit bumps (2.10) are respectively arranged on two sides in the fixed tube (2.1) corresponding to the limit bosses (2.9), the outer diameter of each limit boss (2.9) is larger than the distance between the limit bumps (2.10) on two sides, and each limit boss (2.9) passes through the limit bump (2.10) on two sides in the fixed tube (2.1) in a squeezing mode.
3. The pop-up high-voltage fuse of claim 2, wherein the limiting boss (2.9) is sleeved with a compression spring (2.3), the compression spring (2.3) is limited on the limiting boss (2.9), the movable tube (2.2) is compressed by the limiting boss (2.9) in the fixed tube (2.1) to compress the compression spring (2.3), the movable tube (2.2) is popped out of the fixed tube (2.1) downwards, and the limiting boss (2.9) and the limiting bump (2.10) are in limiting contact with each other.
4. The pop-up high-voltage fuse according to claim 1, wherein the latch snap-fit member comprises a latch (1.2) arranged on the outer housing (1), a latch (1.3) and a latch key (2.5) arranged on the fixed tube (2.1), the latch (1.2) is provided with a limit groove (1.9) for clamping the latch key (2.5), the latch key (2.5) moves up and down in the outer housing (1) through the fixed tube (2.1) and is in contact with the latch (1.3) and the latch (1.2), the latch key (2.5) contacts the latch (1.3) upwards and rotates in the latch (1.3) in a limit manner, the latch key (2.5) contacts the latch (1.2) downwards and is clamped in the limit groove (1.9) through rotation, or the latch key (2.5) is separated from the limit groove (1.9) through rotation.
5. The pop-up high-voltage fuse of claim 4, wherein the outer housing (1) is provided with a clamping sleeve (1.1), a plurality of buckles (1.2) and a plurality of mutually connected latches (1.3) are arranged in the clamping sleeve (1.1), the plurality of buckles (1.2) and the latches (1.3) are annularly distributed in the clamping sleeve (1.1), and the latches (1.3) are positioned above the buckles (1.2); the outside of fixed pipe (2.1) corresponds buckle (1.2), latch (1.3) is provided with a plurality of screens key (2.5), and a plurality of screens key (2.5) annular distribution is on the outside of fixed pipe (2.1), and fixed pipe (2.1) and shell body (1) pass through annular distributed screens key (2.5), buckle (1.2), latch (1.3) interconnect lock or separation.
6. The pop-up high-voltage fuse according to claim 1, wherein the movable tube (2.2) and the fixed tube (2.1) are provided with mutually communicated openings (2.8), and the fuse (2.4) extends to the outer sides of the movable tube (2.2) and the fixed tube (2.1) through the openings (2.8).
7. The pop-up high-voltage fuse according to claim 6, wherein a lower contact (2.7) is arranged at the top end of the fixed tube (2.1), an upper contact (2.6) is arranged at the top end of the movable tube (2.2), an upper contact copper bar (1.4) is arranged corresponding to the upper contact (2.6) of the outer shell (1), a lower contact copper bar (1.7) is arranged corresponding to the lower contact (2.7) of the outer shell (1), the fuse wire (2.4) penetrates into the movable tube (2.2) and is fixed on the upper contact (2.6), the upper contact (2.6) and the upper contact copper bar (1.4) are in abutting contact with each other, and the other end of the fuse wire (2.4) extends to the outer sides of the movable tube (2.2) and the fixed tube (2.1) and is fixed on the lower contact (2.7); fixed pipe (2.1) and movable pipe (2.2) insert in shell body (1), wherein movable pipe (2.2) run through lower contact copper bar (1.7), lower part contact (2.7) spacing is on lower contact copper bar (1.7) and with lower contact copper bar (1.7) mutual support contact, fuse (2.4) are through upper portion contact (2.6), lower part contact (2.7) switch on respectively contact copper bar (1.4) and lower contact copper bar (1.7), go up the wire of contact copper bar (1.4), the wire of lower contact copper bar (1.7) respectively with fuse (2.4) interconnect, switch on.
8. The pop-up high voltage fuse of claim 7, wherein the upper contact (2.6) and the top end of the movable tube (2.2) are in threaded connection with each other and clamp the fuse (2.4), one side of the upper contact copper bar (1.4) is provided with an upper return spring (1.5), the other sides of the upper contact (2.6) and the upper contact copper bar (1.4) are in abutting contact with each other, and the upper contact (2.6) penetrates through the top end of the outer shell (1) to drive the upper contact copper bar (1.4) to upwards press the upper return spring (1.5).
9. The pop-up high-voltage fuse of claim 8, wherein the outer shell (1) and the upper contact copper bar (1.4) are connected with each other through a screw (1.6), the upper return spring (1.5) is sleeved on the outer side of the screw (1.6), one side of the upper return spring (1.5) is in limit fit with a screw head of the screw (1.6), the other side of the upper return spring (1.5) is in limit fit with the upper contact copper bar (1.4), an upper contact (2.6) at the top end of the movable tube (2.2) is inserted into the outer shell (1) upwards, and the upper contact (2.6) drives the upper contact copper bar (1.4) to press the upper return spring (1.5) towards the screw head of the screw (1.6).
10. The pop-up high-voltage fuse of claim 7, wherein a lower reset spring (1.8) is arranged at one side of the lower contact copper bar (1.7), the lower contact (2.7) and the other side of the lower contact copper bar (1.7) are in abutting contact with each other, the fixed tube (2.1) is inserted into the outer shell (1), a part of the movable tube (2.2) extending out of the fixed tube (2.1) penetrates through the lower contact (2.7), the lower contact copper bar (1.7) and the lower reset spring (1.8), the lower contact (2.7) is inserted into the outer shell (1) upwards through the fixed tube (2.1) to drive the lower contact copper bar (1.7) to press the lower reset spring (1.8) upwards, and the lower contact (2.7) compresses the lower reset spring (1.8) through the lower contact copper bar (1.7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811251642.3A CN109192634B (en) | 2018-10-25 | 2018-10-25 | Pop-up high-voltage fuse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811251642.3A CN109192634B (en) | 2018-10-25 | 2018-10-25 | Pop-up high-voltage fuse |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109192634A CN109192634A (en) | 2019-01-11 |
| CN109192634B true CN109192634B (en) | 2023-09-05 |
Family
ID=64943419
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811251642.3A Active CN109192634B (en) | 2018-10-25 | 2018-10-25 | Pop-up high-voltage fuse |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109192634B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117316737B (en) * | 2023-11-06 | 2024-04-05 | 广东红杉信息科技有限公司 | Fuse for intelligent electric power internet of things |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2184979Y (en) * | 1994-01-25 | 1994-12-07 | 姜德轩 | Small volume ejecting thermal element |
| CN204424195U (en) * | 2014-12-18 | 2015-06-24 | 国家电网公司 | A kind of high-tension fuse |
| CN204927219U (en) * | 2015-09-01 | 2015-12-30 | 北京京铁众达科技有限公司 | Totally closed slip fuse |
| CN106128897A (en) * | 2016-08-24 | 2016-11-16 | 辽宁华隆电力科技股份有限公司 | A kind of upper locking injection fuse box with low-melting alloy spacing preiection |
| CN106128894A (en) * | 2016-08-24 | 2016-11-16 | 辽宁华隆电力科技股份有限公司 | A kind of injection fuse box with low-melting alloy spacing preiection |
| CN106128891A (en) * | 2016-08-24 | 2016-11-16 | 辽宁华隆电力科技股份有限公司 | The outside of a kind of cartridge fuse is cased with the fuse of pyrocondensation insulating barrier |
| CN107346719A (en) * | 2017-07-26 | 2017-11-14 | 河南平开科技有限公司 | A kind of outdoor closed injection fuse box |
| CN206893584U (en) * | 2017-06-27 | 2018-01-16 | 正泰电气股份有限公司 | A kind of 12kV all insulations enclosed type expulsion fuse |
| CN207199557U (en) * | 2017-07-26 | 2018-04-06 | 河南平开科技有限公司 | A kind of fusing injection structure being used in outdoor closed injection fuse box |
| CN207588330U (en) * | 2017-12-19 | 2018-07-06 | 温州新机电器有限公司 | Fuse handcart |
| CN207765394U (en) * | 2018-01-17 | 2018-08-24 | 福建省电力有限公司泉州电力技能研究院 | A kind of outdoor high-voltage enclosed type expulsion fuse |
| CN208848841U (en) * | 2018-10-25 | 2019-05-10 | 赫兹曼电力（广东）有限公司 | A kind of Pop-up high-tension fuse |
-
2018
- 2018-10-25 CN CN201811251642.3A patent/CN109192634B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2184979Y (en) * | 1994-01-25 | 1994-12-07 | 姜德轩 | Small volume ejecting thermal element |
| CN204424195U (en) * | 2014-12-18 | 2015-06-24 | 国家电网公司 | A kind of high-tension fuse |
| CN204927219U (en) * | 2015-09-01 | 2015-12-30 | 北京京铁众达科技有限公司 | Totally closed slip fuse |
| CN106128897A (en) * | 2016-08-24 | 2016-11-16 | 辽宁华隆电力科技股份有限公司 | A kind of upper locking injection fuse box with low-melting alloy spacing preiection |
| CN106128894A (en) * | 2016-08-24 | 2016-11-16 | 辽宁华隆电力科技股份有限公司 | A kind of injection fuse box with low-melting alloy spacing preiection |
| CN106128891A (en) * | 2016-08-24 | 2016-11-16 | 辽宁华隆电力科技股份有限公司 | The outside of a kind of cartridge fuse is cased with the fuse of pyrocondensation insulating barrier |
| CN206893584U (en) * | 2017-06-27 | 2018-01-16 | 正泰电气股份有限公司 | A kind of 12kV all insulations enclosed type expulsion fuse |
| CN107346719A (en) * | 2017-07-26 | 2017-11-14 | 河南平开科技有限公司 | A kind of outdoor closed injection fuse box |
| CN207199557U (en) * | 2017-07-26 | 2018-04-06 | 河南平开科技有限公司 | A kind of fusing injection structure being used in outdoor closed injection fuse box |
| CN207588330U (en) * | 2017-12-19 | 2018-07-06 | 温州新机电器有限公司 | Fuse handcart |
| CN207765394U (en) * | 2018-01-17 | 2018-08-24 | 福建省电力有限公司泉州电力技能研究院 | A kind of outdoor high-voltage enclosed type expulsion fuse |
| CN208848841U (en) * | 2018-10-25 | 2019-05-10 | 赫兹曼电力（广东）有限公司 | A kind of Pop-up high-tension fuse |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109192634A (en) | 2019-01-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109192634B (en) | Pop-up high-voltage fuse | |
| CN219739866U (en) | Protection mechanism and electric junction box | |
| CN208848841U (en) | A kind of Pop-up high-tension fuse | |
| CN210535932U (en) | Two-core elbow high-pressure connector | |
| CN209880529U (en) | Fuse protector | |
| CN115240965B (en) | Fuse is used in transformer protection | |
| CN107202910B (en) | Test terminal with function of preventing short circuit and false disconnection | |
| CN105932446A (en) | Integrated electrical wiring terminal and contact member thereof | |
| CN212751187U (en) | High-voltage grounding wire | |
| CN107196099B (en) | Underwater radial shearing separation electric connector | |
| CN107389985B (en) | Test terminal with function of preventing short circuit and false disconnection | |
| CN210778452U (en) | Plug-in circuit breaker | |
| CN114545048A (en) | Uninterrupted power supply replacement ammeter | |
| CN113161193B (en) | Vacuum circuit breaker and vacuum arc extinguish chamber | |
| CN209784420U (en) | electric energy meter termination | |
| CN114864345B (en) | Split type circuit breaker convenient to insert and install | |
| CN218160255U (en) | Vacuum-load switch fuse combined electrical apparatus | |
| CN217641111U (en) | Outdoor high-voltage vacuum circuit breaker | |
| CN218482455U (en) | Waterproof insulation binding post | |
| CN218351833U (en) | Install convenient weak cable connector | |
| CN218161080U (en) | Screwing type wiring terminal | |
| CN208889953U (en) | Snap lock compact form interface arrangement | |
| CN211719432U (en) | Alternating current capacitor with bent pins | |
| CN116565636B (en) | Electronic connector with protection function | |
| CN2344855Y (en) | Compressing split contact |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |