CN214542005U - Fuse seals utmost point post admittedly and boundary protection device - Google Patents

Abstract

The utility model provides a fuse solid-sealed polar pole and a boundary protection device, wherein the fuse solid-sealed polar pole comprises a polar pole body with a fuse installation cavity; an upper mounting support seat is arranged at the upper part of the pole body, and an electricity taking sensor is embedded in the upper mounting support seat; an upper conductive cover is arranged at the top of the fuse installation cavity; and the high-voltage side of the electricity taking sensor is connected with the access end of the upper conductive cover. The utility model discloses the advantage: can get the electricity in real time to the incoming end of utmost point post body through getting the electricity sensor to the terminal equipment who provides needs uses, helps realizing the function of quick judgement distribution lines trouble.

Description

Fuse seals utmost point post admittedly and boundary protection device

[ technical field ] A method for producing a semiconductor device

The utility model discloses distribution protection equipment field, in particular to fuse seals utmost point post admittedly and boundary protection device.

[ background of the invention ]

The boundary switch equipment is a protection equipment for a distribution branch line, and when a distribution line branch or a user side has a fault, if the relay protection action time limit of the boundary switch equipment is not matched with the relay protection action time limit of a substation outgoing line switch of a power supply company, the outgoing line switch of the substation can be switched off. Because the traditional demarcation switchgear can not judge the trouble fast for when troubleshooting, overhaul, need consume a large amount of manpower and materials, and influence the normal power supply of whole distribution lines. In order to realize the function of quickly judging faults, a control terminal needs to be arranged on the boundary switch equipment, and the power supply requirement of the control terminal cannot be met due to the fact that high-voltage electricity is provided by a distribution line, so that how to safely and effectively take electricity and provide the electricity for the control terminal to use is a problem which needs to be solved urgently. In view of the above problems, the present inventors have conducted extensive studies and have made the present invention.

[ Utility model ] content

The to-be-solved technical problem of the utility model lies in providing a fuse seals utmost point post admittedly and boundary protection device, can realize getting the electricity safely effectively from the distribution lines, provides the guarantee for realizing the rapid judgement distribution lines trouble.

The utility model discloses a realize like this:

in a first aspect, a fuse embedded pole comprises a pole body with a fuse mounting cavity; an upper mounting support seat is arranged at the upper part of the pole body, and an electricity taking sensor is embedded in the upper mounting support seat; an upper conductive cover is arranged at the top of the fuse installation cavity; the high-voltage side of the electricity-taking sensor is connected with the access end of the upper conductive cover, and the upper mounting support seat is provided with a first wire outlet terminal connected with the low-voltage side of the electricity-taking sensor.

Furthermore, a current sensor is embedded in the position, corresponding to the upper conductive cover, of the pole body.

Furthermore, the lower part of the fuse installation cavity is provided with a lower conductive sleeve.

Furthermore, the lower part of utmost point post body has down the erection bracing seat.

Furthermore, a voltage sensor is embedded in the lower mounting support seat, and the high-voltage side of the voltage sensor is connected with the lower conductive sleeve.

Furthermore, a second wire outlet terminal connected with the low-voltage side of the voltage sensor is arranged on the lower mounting support seat.

Furthermore, the end part of the lower mounting support seat is provided with a first fixing nut.

Furthermore, a third wire outlet terminal connected with the current sensor is arranged on the upper mounting support seat.

Furthermore, a second fixing nut is arranged at the end part of the upper mounting support seat.

Further, the upper end of the pole body is provided with an upper conductive rod, and the high-voltage side of the electricity-taking sensor is connected with the upper conductive rod.

Furthermore, the upper conductive cover is of an elastic grotto structure.

Furthermore, the upper end of the upper conductive cover is provided with a fixed convex part fixedly connected with the lower end of the upper conductive rod.

Further, the arc extinguishing rod is installed inside the upper conductive cover.

Furthermore, a return spring is arranged between the arc extinguishing rod and the upper conductive cover.

Furthermore, a spring accommodating cavity is formed at the upper part of the arc extinguishing rod.

Furthermore, the upper end of the return spring is fixed on the upper conductive cover, and the lower end of the return spring abuts against the bottom of the spring accommodating cavity.

Furthermore, the upper end of the upper conducting rod is provided with a first screw hole.

Furthermore, the high-voltage shielding device also comprises a high-voltage shielding cover sleeved outside the upper conductive cover.

Furthermore, one side of the lower end of the pole body is provided with a lower conductive rod which is connected with the lower conductive sleeve for conduction.

Furthermore, the outer end of the lower conducting rod is provided with a second screw hole.

Furthermore, the upper conductive cover, the upper conductive rod, the high-voltage shielding cover, the lower conductive sleeve and the lower conductive rod are cast with the pole body into a whole.

Furthermore, the outside of utmost point post body has first full skirt.

Furthermore, a second umbrella skirt is arranged outside the upper mounting and supporting seat.

Furthermore, a third umbrella skirt is arranged outside the lower mounting support seat.

In a second aspect, the boundary protection device based on the fuse embedded pole further comprises a fuse installed in the fuse embedded pole, and an upper conductive part of the fuse is in contact conduction with the upper conductive cover.

Further, an arc extinguishing bar mounting cavity is formed at the upper end of the fuse.

Furthermore, the arc extinguishing bar is installed in the arc extinguishing bar installation cavity, and the upper end of the arc extinguishing bar is provided with a limiting convex part in an outward extending manner.

Furthermore, the lower wire outlet seat is sleeved in the lower conductive sleeve and is used for being sleeved with the lower end of the fuse.

Further, the lower outlet base comprises a fixed cover, a conducting plate arranged in the fixed cover and a conducting elastic sheet fixedly arranged on the conducting plate; an inner contact surface which is in contact with and is conductive with a lower conductive part of the fuse is formed on the inner side of the conductive elastic sheet, and an outer contact surface which is in contact with and is conductive with the inner wall surface of the lower conductive sleeve is formed on the outer side of the conductive elastic sheet.

Further, the fixing cover is a compressible plastic structural member.

Furthermore, an embedding convex part is formed on the outer wall of the lower end of the fixed cover.

Further, an embedding groove for embedding the embedding convex part is formed on the inner wall of the lower end of the lower conductive sleeve.

Furthermore, the conductive elastic sheet comprises a first contact sheet vertically arranged in the sleeved through hole and used for forming an inner contact surface, a second contact sheet vertically arranged on the outer side of the conductive sheet and used for forming an outer contact surface, and a first connecting sheet locked on the conductive sheet; one end of the first connecting sheet is connected with the first contact sheet, and the other end of the first connecting sheet is connected with the second contact sheet.

Furthermore, the conductive elastic sheet also comprises a second connecting sheet vertically arranged on the outer side of the first contact sheet; the lower end of the second connecting sheet is connected with one end of the first connecting sheet, and the upper end of the second connecting sheet is connected with the upper end of the first contact sheet through a first arc-shaped connecting portion.

Furthermore, the conductive elastic sheet also comprises a clamping convex part connected with the lower end of the first contact sheet.

Furthermore, the conductive elastic sheet further comprises a second arc-shaped connecting part connected with the upper end of the second contact piece.

Further, the incoming line cable with the first line nose is also included.

Furthermore, the first wire nose is in threaded connection with the first screw hole of the upper conducting rod.

Furthermore, the outside cladding of inlet wire cable has a first silicon rubber overcoat.

Further, the cable outlet device also comprises an outlet cable with a second wire nose.

Furthermore, the second wire nose is in threaded connection with a second screw hole of the lower conducting rod.

Furthermore, a second silicon rubber outer sleeve is wrapped outside the outgoing cable.

The utility model has the advantages that:

1. the pole body is provided with an upper mounting support seat, an electricity taking sensor is embedded in the upper mounting support seat, and the high-voltage side of the electricity taking sensor is connected with the access end of the upper conductive cover; make when specifically using, can pass through get the electricity sensor and get the electricity in real time to the incoming end of utmost point post body to the terminal equipment (like controlgear) that provides needs uses, helps realizing the function of quick judgement distribution lines trouble.

2. Be provided with current sensor and voltage sensor on utmost point post body, can be convenient for gather voltage and current signal on the distribution lines in real time, for terminal equipment's fault study and judge and provide reliable data support, be favorable to realizing studying and judging the affirmation fault type fast reliably to quick isolation fault point reduces the area of having a power failure and reduces the harmful effects that the large tracts of land has a power failure brought.

3. The current sensor, the voltage sensor, the electricity taking sensor and other parts are embedded into the pole column body in a pouring mode, so that the assembly process can be simplified, the production efficiency can be improved, and the firmness is good; the insulation performance of the post body molded by casting is good, the insulation and voltage resistance level can be improved, and the use safety of high-voltage power distribution is ensured; each part is not influenced by the external severe environment, so that the service life can be prolonged; meanwhile, the integral structure is compact and attractive, and the occupied space is reduced.

4. The pole body can be conveniently installed and fixed by arranging the upper installation supporting seat and the lower installation supporting seat.

5. The specific structural design of the lower outgoing line seat and the upper conductive cover can ensure that the fuse is in good contact, and the condition that the fuse cannot be normally conducted due to poor contact is avoided.

[ description of the drawings ]

The invention will be further described with reference to the following examples with reference to the accompanying drawings.

Fig. 1 is a schematic structural view of a fuse embedded pole of the present invention;

fig. 2 is a schematic view of the installation structure of the upper conductive cover and the arc extinguishing rod in the present invention;

fig. 3 is a cross-sectional view of the middle and lower conductive sleeves of the present invention;

fig. 4 is a schematic structural diagram of a boundary protection device according to the present invention;

FIG. 5 is a schematic structural diagram of a fuse of the present invention;

FIG. 6 is a cross-sectional view of the lower wire outlet base of the present invention;

fig. 7 is a top view of the lower wire outlet seat of the present invention;

fig. 8 is a schematic structural view of the middle conductive elastic piece of the present invention.

100-fuse embedded pole, 200-fuse, 201-lower conductive part, 202-upper conductive part, 203-arc-extinguishing rod mounting chamber, 1-pole body, 11-fuse mounting chamber, 12-upper mounting support, 121-first outlet terminal, 122-third outlet terminal, 123-second fixing nut, 124-second shed, 13-lower mounting support, 131-second outlet terminal, 132-first fixing nut, 133-third shed, 14-first shed, 21-electricity-taking sensor, 22-current sensor, 23-voltage sensor, 3-upper conductive cover, 31-fixing convex part, 4-lower conductive sleeve, 41-embedding groove, 51-upper conductive rod, 511-first screw hole, 52-lower conductive rod, 521-second screw hole, 53-incoming cable, 531-first wire nose, 532-first silicon rubber jacket, 54-outgoing cable, 541-second wire nose, 542-second silicon rubber jacket, 6-arc extinguishing rod, 61-spring accommodating cavity, 62-limiting convex part, 7-reset spring, 8-high-voltage shielding cover, 9-lower outgoing wire seat, 9 a-inner contact surface, 9 b-outer contact surface, 9 c-sleeved through hole, 91-fixing cover, 911-embedded convex part, 92-conductive sheet, 93-conductive elastic sheet, 931-first contact sheet, 932-second contact sheet, 933-first connection sheet, 934-second connection sheet, 935-first arc-shaped connection part, 936-clamping convex part, 937-second arcuate connecting portion.

[ detailed description ] embodiments

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Detailed description of the preferred embodiment 1

Referring to fig. 1 to 3 and 5, the fuse embedded pole 100 of the present invention includes a pole body 1 having a fuse mounting cavity 11; an upper mounting support seat 12 is arranged at the upper part of the pole body 1, and an electric pickup sensor 21 is embedded in the upper mounting support seat 12; the top of the fuse mounting chamber 11 is provided with an upper conductive cover 3; the high-voltage side of the electricity-taking sensor 21 is connected with the access end of the upper conductive cover 3, the upper mounting support base 12 is provided with a first wire outgoing terminal 121 connected with the low-voltage side of the electricity-taking sensor 21, and when the power supply device is used, only equipment needing power supply is connected with the first wire outgoing terminal 121, and power supply for terminal equipment (such as control equipment) can be achieved.

The utility model designs that the pole body 1 is provided with an upper mounting support seat 12, a power taking sensor 21 is embedded in the upper mounting support seat 12, and the high-voltage side of the power taking sensor 21 is connected with the access end of an upper conductive cover 3; when the power distribution line fault detection device is used specifically, the power acquisition sensor 21 can be used for acquiring power from the access end of the pole column body 1 in real time and providing the power to required terminal equipment (such as control equipment) for use, and the function of quickly judging the fault of the power distribution line is facilitated. Meanwhile, the electricity taking sensor 21 is embedded in the upper mounting support seat 12, so that the influence of the external severe environment can be avoided, safe and effective electricity taking can be realized, and the use is safer, more reliable and more stable; on the other hand, the assembly process can be simplified, so that the whole structure is more compact; in addition, the upper mounting support base 12 is convenient for mounting and fixing the fuse embedded pole 100.

In this embodiment, the electricity-taking sensor 21 is a capacitive voltage-dividing sensor or a resistive-capacitive voltage-dividing sensor, so as to convert high voltage electricity into low voltage electric energy, and meet the power supply condition of the terminal device. In specific implementation, the power-taking sensor 21 may adopt a large-capacity capacitor to store more electric energy, so as to provide a guarantee for power supply of the terminal device.

In this embodiment, a current sensor 22 is embedded in the pole body 1 at a position corresponding to the upper conductive cover 3. During specific work, the current sensor 22 can be used for acquiring current signals on the distribution lines in real time, so that the current signals can be provided for terminal equipment to conduct fault research and judgment.

In a preferred embodiment, the current sensor 22 is a feedthrough current transformer. The current sensor 22 is embedded in the pole body 1, so that the current sensor 22 can be protected, adverse effects on the current sensor 22 caused by severe environments are avoided, the service life is prolonged, and the use safety is ensured; meanwhile, the structure of the whole boundary protection device can be more compact, and the occupied space is reduced.

In this embodiment, the lower portion of the fuse mounting chamber 11 is provided with a lower conductive sleeve 4 to facilitate the output of high voltage electricity and the voltage signal acquisition.

In this embodiment, the lower part of the pole body 1 has a lower mounting seat 13. Through the cooperation of lower erection bracing seat 13 and last erection bracing seat 12, can be convenient for realize the firm installation of fuse solid seal utmost point post 100.

In this embodiment, a voltage sensor 23 is embedded in the lower mounting support base 13, and the high voltage side of the voltage sensor 23 is connected to the lower conductive sleeve 4. During operation, the voltage sensor 23 collects voltage signals on the distribution lines in real time so as to provide the voltage signals for the terminal equipment to conduct fault research and judgment.

In a preferred embodiment, the voltage sensor 23 is a capacitive voltage dividing sensor or a resistive-capacitive voltage dividing sensor, which converts high voltage into low voltage signals. The voltage sensor 23 is embedded in the lower mounting support base 13, so that the voltage sensor 23 can be protected, adverse effects on the voltage sensor 23 caused by severe environments are avoided, the service life is prolonged, and the use safety is ensured; meanwhile, the structure of the whole boundary protection device can be more compact, and the occupied space is reduced.

In this embodiment, the lower mounting support base 13 is provided with a second outlet terminal 131 connected to the low-voltage side of the voltage sensor 23, so as to connect to a terminal device through the second outlet terminal 131, and transmit the collected voltage signal to the terminal device.

In this embodiment, in order to facilitate the installation and fixation of the fuse embedded pole 100, the end of the lower mounting support base 13 is provided with a first fixing nut 132, and in a specific use, the lower mounting support base 13 and another supporting mechanism (not shown) may be fixedly connected together through a nut.

In this embodiment, the upper mounting support base 12 is provided with a third outgoing line terminal 122 connected to the current sensor 22, so as to be connected to a terminal device through the third outgoing line terminal 122, and transmit the collected current signal to the terminal device.

In this embodiment, the end of the upper mounting support base 12 is provided with a second fixing nut 123, and in a specific use, the upper mounting support base 12 and other support mechanisms can be fixedly connected together through the nut.

In this embodiment, the upper end of utmost point post body 1 is provided with conducting rod 51, it is connected with last conducting rod 51 to get the high-pressure side of electric sensor 21 to the realization is taken the electricity from the input of fuse solid sealed utmost point post 100, guarantees also can not influence normal electricity after fuse 200 fuses.

In this embodiment, the upper conductive cover 3 is an elastic grotto structure. By designing the upper conductive cover 3 to have an elastic grotto structure, after the upper conductive part 202 of the fuse 200 is mounted in the upper conductive cover 3, the upper conductive cover 3 holds the upper conductive part 202 of the fuse 200 tightly under the action of elastic force, thereby realizing a good contact conductive function.

In the present embodiment, in order to facilitate the fixed connection of the upper conductive cover 3, the upper end of the upper conductive cover 3 has a fixing protrusion 31 fixed to the lower end of the upper conductive rod 51.

In this embodiment, the fuse embedded pole 100 further includes an arc extinguishing rod 6 installed inside the upper conductive cover 3 to extinguish the arc and avoid damaging the device when the arc is generated.

In this embodiment, a return spring 7 is disposed between the arc-extinguishing rod 6 and the upper conductive cover 3, so that the arc-extinguishing rod 6 can better contact with the gas to generate gas.

In this embodiment, a spring receiving cavity 61 is formed at an upper portion of the arc extinguishing bar 6 to facilitate installation of the return spring 7.

In this embodiment, the upper end of the return spring 7 is fixed on the upper conductive cover 3, and the lower end of the return spring 7 abuts against the bottom of the spring accommodating cavity 61.

In this embodiment, the upper end of the upper conductive rod 51 has a first screw hole 511, so as to access high voltage by a screw connection manner, improve the connection firmness, and ensure good contact.

In this embodiment, the fuse embedded pole 100 further includes a high voltage shielding cover 8 sleeved outside the upper conductive cover 3 to achieve a high voltage shielding effect.

In this embodiment, a lower conductive rod 52 connected to the lower conductive sleeve 4 for conducting electricity is disposed on one side of the lower end of the pole body 1, so as to facilitate the output of high voltage electricity.

In this embodiment, the outer end of the lower conductive rod 52 has a second screw hole 521, so as to output high voltage by screwing, improve the connection firmness, and ensure good contact.

In this embodiment, the pole body 1 is a casing formed by pouring engineering plastic. Through adopting engineering plastics pouring to form utmost point post body 1, can ensure that utmost point post body 1 has fine insulating nature, ensures safe in utilizationly.

As a best embodiment, in order to achieve better insulation effect and ensure reliability, the pole body 1 is a casing formed by casting epoxy resin material or composite nylon material.

In this embodiment, the upper conductive cover 3, the upper conductive rod 51, the high voltage shielding cover 8, the lower conductive sleeve 4, and the lower conductive rod 52 are all integrally cast with the pole body 1. Because the upper mounting support seat 12 and the lower mounting support seat 13 are integrally cast with the pole body 1, the upper conductive cover 3, the upper conductive rod 51, the high-voltage shielding cover 8, the lower conductive sleeve 4, the lower conductive rod 52, the upper mounting support seat 12, the lower mounting support seat 13, the power-taking sensor 21, the current sensor 22 and the voltage sensor 23 are all integrated with the pole body 1. In concrete implementation, the upper conductive cover 3, the upper conductive rod 51, the high-voltage shielding cover 8, the lower conductive cover 4, the lower conductive rod 52, the electricity taking sensor 21, the current sensor 22 and the voltage sensor 23 need to be placed in a mold, and then the pole body 1, the upper mounting support base 12 and the lower mounting support base 13 are cast through a casting process, so that all the components can be combined and fixed together. The utility model integrates the components by casting through the casting process, which can simplify the assembly process, improve the production efficiency and has good firmness; the insulation performance of the cast pole body 1 is good, the insulation and voltage-resistant level can be improved, and the use safety of high-voltage power distribution is ensured; each part is not influenced by the external severe environment, so that the service life can be prolonged; meanwhile, the integral structure is compact and attractive, and the occupied space is reduced.

In the present embodiment, in order to improve the insulation effect, the exterior of the pole body 1 has a first shed 14.

In this embodiment, in order to improve the insulation effect, the outer portion of the upper mounting support 12 has a second shed 124.

In this embodiment, in order to improve the insulation effect, the lower mount support base 13 has a third shed 133 on the outside.

Specific example 2

Please refer to fig. 1 to 8, the boundary protection device of the present invention includes a fuse embedded pole 100 and a fuse 200 installed in the fuse embedded pole 100, wherein an upper conductive part 202 of the fuse 200 is in contact with an upper conductive cover 3 to connect the fuse 200, so as to protect the distribution lines and the line devices. The specific structure of the fuse embedded terminal 100 is described with reference to the description of embodiment 1, and the description is not repeated here.

In this embodiment, in order to facilitate the installation of the arc-extinguishing bar 6, an arc-extinguishing bar installation chamber 203 is formed at the upper end of the fuse 200.

In this embodiment, the arc-extinguishing bar 6 is installed in the arc-extinguishing bar installation chamber 203, and a limiting protrusion 62 is extended from the upper end of the arc-extinguishing bar 6 to limit the upper end of the arc-extinguishing bar 6.

In this embodiment, the boundary protection device further includes a lower wire outlet base 9 sleeved in the lower conductive sleeve 4 and used for being sleeved with the lower end of the fuse 200, so as to be electrically connected with the lower end of the fuse 200. A sleeving through hole 9c is formed in the middle of the lower wire outlet base 9 so as to facilitate sleeving of the lower end of the fuse 200.

In this embodiment, the lower wire outlet base 9 includes a fixing cover 91, a conducting strip 92 installed in the fixing cover 91, and a conducting elastic sheet 93 fixed on the conducting strip 92; an inner contact surface 9a that is in contact with and electrically conducts with the lower conductive portion 201 of the fuse 200 is formed on the inner side of the conductive elastic piece 93, and an outer contact surface 9b that is in contact with and electrically conducts with the inner wall surface of the lower conductive sleeve 4 is formed on the outer side of the conductive elastic piece 93.

The utility model discloses in have electrically conductive shell fragment 93 through outlet base 9 under the design, and the inboard of electrically conductive shell fragment 93 be formed with fuse 200's lower conductive part 201 contact electrically conductive inside contact surface 9a, the outside is formed with the electrically conductive outer contact surface 9b of internal face contact of lower conductive sleeve 4. Because the conductive elastic sheet 93 has elasticity, after the lower conductive part 201 of the fuse 200 is sleeved into the lower wire outlet base 9, the inner contact surface 9a is tightly attached to the lower conductive part 201 under the action of the elasticity, and the outer contact surface 9b is tightly attached to the inner wall surface of the lower conductive sleeve 4, so that the lower conductive part 201 of the fuse 200 can be ensured to be in good contact, and the condition that the lower conductive part 201 cannot be normally conducted due to poor contact is ensured.

In this embodiment, the fixing cover 91 is a compressible plastic structural member. In particular use, the fixing cover 91 can be deformed by external pressure to facilitate the installation and fixation of the fixing cover 91.

In the present embodiment, in order to fix the fixing cover 91, an insertion protrusion 911 is formed on an outer wall of a lower end of the fixing cover 91.

In this embodiment, an insertion groove 41 into which the insertion protrusion 911 is inserted is formed in an inner wall of a lower end of the lower conductive sleeve 4. In a specific use, the fixing cover 91 can be pushed upwards from the lower end of the lower conductive sleeve 4, so that the embedding protrusion 911 is embedded into the embedding groove 41, and the lower outlet seat 9 is fixed on the lower conductive sleeve 4.

In this embodiment, the conductive elastic piece 93 includes a first contact piece 931 vertically disposed in the set through hole 9c for forming the inner contact surface 9a, a second contact piece 932 vertically disposed outside the conductive sheet 92 for forming the outer contact surface 9b, and a first connection piece 933 locked to the conductive sheet 92, and the first connection piece 933 is locked to the conductive sheet 92, thereby fixing the conductive elastic piece 93; one end of the first connection piece 933 is connected to the first contact 931, and the other end of the first connection piece 933 is connected to the second contact 932.

In this embodiment, the conductive elastic piece 93 further includes a second connecting piece 934 vertically disposed outside the first contact piece 931; the lower end of the second connecting piece 934 is connected to one end of the first connecting piece 933, and the upper end of the second connecting piece 934 is connected to the upper end of the first contact piece 931 through a first arc-shaped connecting portion 935. The utility model adopts the connection of the upper end of the first contact 931 with the upper end of the second connecting piece 934 through the first arc-shaped connecting part 935, so that the first contact 931 has better elasticity; when the fuse 200 is inserted into the through hole 9c, the first contact piece 931 can clamp the lower conductive portion 201 of the fuse 200 under the elastic force, so as to achieve a better contact conductive function.

In the present embodiment, in order to better clamp the lower conductive portion 201 of the fuse 200 and ensure that the fuse 200 does not fall off, the conductive elastic piece 93 further includes a holding projection 936 connected to the lower end of the first contact 931.

In this embodiment, in order to avoid scratching the equipment or the operator during installation and use, the conductive spring 93 further includes a second arc-shaped connecting portion 937 connected to the upper end of the second contact piece 932.

In this embodiment, to realize the access of the high voltage electricity, the demarcation protection device further comprises an incoming cable 53 having a first wire nose 531.

In this embodiment, the first wire lug 531 is screwed with the first screw hole 511 of the upper conductive rod 51. The first wire nose 931 is screwed with the first screw hole 511, so that the incoming cable 53 and the upper conductive rod 51 are firmly connected together.

In this embodiment, the outside cladding of inlet wire cable 53 has first silicon rubber overcoat 532 to realize sealed insulating effect, guarantee safe in utilizationly.

In this embodiment, the demarcation protection device further includes an outlet cable 54 having a second nose 541 for outputting a high voltage.

In this embodiment, the second wire lug 541 is screwed with the second screw hole 521 of the lower conductive rod 52, and the lower conductive rod 52 and the outgoing cable 54 can be firmly connected together by screwing the second wire lug 541 with the second screw hole 521.

In this embodiment, the outlet cable 54 is externally wrapped with a second silicone rubber jacket 542 to achieve the effect of sealing and insulating, and ensure the use safety.

When the boundary protection device of the utility model is used in detail, the high voltage of the distribution line is in conductive communication with the upper conductive cover 3 through the incoming line cable 53 and the upper conductive rod 51, and the upper conductive cover 3 is in conductive communication with the upper conductive part 202 of the fuse 200; the lower conductive part 201 of the fuse 200 is in conductive communication with the lower conductive sleeve 4 through the lower wire outlet seat 9, the lower conductive sleeve 4 is in conductive communication with the wire outlet cable 54 through the lower conductive rod 52, and high-voltage electricity output is realized; the fuse 200 is blown when a fault occurs, so as to protect the distribution lines and equipment on the lines; meanwhile, the arc extinguishing rod 6 can achieve the purpose of extinguishing electric arcs, and equipment is prevented from being damaged when the electric arcs are generated. In the working process of the working boundary protection device, the electricity taking sensor 21 takes electricity from the input end of high-voltage electricity in real time and stores the electric energy so as to provide the electricity for required terminal equipment; the current sensor 22 and the voltage sensor 23 collect current and voltage signals flowing through the boundary protection device in real time, and can transmit the current and voltage signals to the terminal equipment, so that the terminal equipment can quickly and reliably judge and determine the fault type, a fault point is quickly isolated, the power failure area is reduced, and adverse effects caused by large-area power failure are reduced.

Although specific embodiments of the present invention have been described, it will be understood by those skilled in the art that the specific embodiments described are illustrative only and are not limiting upon the scope of the invention, and that equivalent modifications and variations can be made by those skilled in the art without departing from the spirit of the invention, which is to be limited only by the claims appended hereto.

Claims (42)

1. The utility model provides a fuse seals utmost point post admittedly which characterized in that: comprises a pole body with a fuse mounting chamber; an upper mounting support seat is arranged at the upper part of the pole body, and an electricity taking sensor is embedded in the upper mounting support seat; an upper conductive cover is arranged at the top of the fuse installation cavity; the high-voltage side of the electricity-taking sensor is connected with the access end of the upper conductive cover, and the upper mounting support seat is provided with a first wire outlet terminal connected with the low-voltage side of the electricity-taking sensor.

2. The fuse embedded pole of claim 1, wherein: and a current sensor is embedded in the position, corresponding to the upper conductive cover, of the pole body.

3. The fuse embedded pole of claim 2, wherein: and a lower conductive sleeve is arranged at the lower part of the fuse mounting cavity.

4. The fuse embedded pole of claim 3, wherein: the lower part of the pole body is provided with a lower mounting support seat.

5. The fuse embedded pole of claim 4, wherein: and a voltage sensor is embedded in the lower mounting support seat, and the high-voltage side of the voltage sensor is connected with the lower conductive sleeve.

6. The fuse embedded pole of claim 5, wherein: and a second wire outlet terminal connected with the low-voltage side of the voltage sensor is arranged on the lower mounting support seat.

7. The fuse embedded pole of claim 4, wherein: and a first fixing nut is arranged at the end part of the lower mounting support seat.

8. The fuse embedded pole of claim 2, wherein: and a third wire outlet terminal connected with the current sensor is arranged on the upper mounting support seat.

9. The fuse embedded pole of claim 1, wherein: and a second fixing nut is arranged at the end part of the upper mounting support seat.

10. The fuse embedded pole of claim 5, wherein: the upper end of the pole body is provided with an upper conductive rod, and the high-voltage side of the electricity-taking sensor is connected with the upper conductive rod.

11. The fuse embedded pole of claim 10, wherein: the upper conductive cover is in an elastic grotto structure.

12. The fuse embedded pole of claim 11, wherein: the upper end of the upper conductive cover is provided with a fixed convex part fixedly connected with the lower end of the upper conductive rod.

13. The fuse embedded pole of claim 12, wherein: the arc extinguishing rod is arranged inside the upper conductive cover.

14. The fuse embedded pole of claim 13, wherein: and a return spring is arranged between the arc extinguishing rod and the upper conductive cover.

15. The fuse embedded pole of claim 14, wherein: and a spring accommodating cavity is formed at the upper part of the arc extinguishing rod.

16. The fuse embedded pole of claim 15, wherein: the upper end of the reset spring is fixed on the upper conductive cover, and the lower end of the reset spring abuts against the bottom of the spring accommodating cavity.

17. The fuse embedded pole of claim 10, wherein: the upper end of the upper conducting rod is provided with a first screw hole.

18. The fuse embedded pole of claim 10, wherein: the high-voltage shielding cover is sleeved outside the upper conductive cover.

19. The fuse embedded pole of claim 18, wherein: and a lower conductive rod connected with the lower conductive sleeve for conduction is arranged on one side of the lower end of the pole body.

20. The fuse embedded pole of claim 19, wherein: and the outer end of the lower conductive rod is provided with a second screw hole.

21. The fuse embedded pole of claim 19, wherein: the upper conductive cover, the upper conductive rod, the high-voltage shielding cover, the lower conductive sleeve and the lower conductive rod are all cast with the pole body into a whole.

22. The fuse embedded pole of claim 4, wherein: the outside of utmost point post body has first full skirt.

23. The fuse embedded pole of claim 4, wherein: and a second umbrella skirt is arranged outside the upper mounting and supporting seat.

24. The fuse embedded pole of claim 4, wherein: and a third umbrella skirt is arranged outside the lower mounting and supporting seat.

25. The boundary protection device for the fuse embedded pole based on any one of claims 1 to 24 is characterized in that: the fuse is installed in the fuse solid-sealed polar pole, and an upper conductive part of the fuse is in contact conduction with the upper conductive cover.

26. A demarcation protection device according to claim 25, wherein: and an arc extinguishing bar mounting cavity is formed at the upper end of the fuse.

27. A demarcation protection device in accordance with claim 26, wherein: the arc extinguishing rod is installed in the arc extinguishing rod installation cavity, and the upper end of the arc extinguishing rod is provided with a limiting convex part in an extending mode.

28. A demarcation protection device according to claim 25, wherein: the lower wire outlet seat is sleeved in the lower conductive sleeve and is used for being sleeved with the lower end of the fuse.

29. A demarcation protection device according to claim 28, wherein: the lower wire outlet seat comprises a fixed cover, a conducting plate arranged in the fixed cover and a conducting elastic sheet fixedly arranged on the conducting plate; an inner contact surface which is in contact with and is conductive with a lower conductive part of the fuse is formed on the inner side of the conductive elastic sheet, and an outer contact surface which is in contact with and is conductive with the inner wall surface of the lower conductive sleeve is formed on the outer side of the conductive elastic sheet.

30. A demarcation protection device according to claim 29, wherein: the fixed cover is a compressible plastic structural member.

31. A demarcation protection device according to claim 30, wherein: an embedded convex part is formed on the outer wall of the lower end of the fixed cover.

32. A demarcation protection device according to claim 31, wherein: an embedding groove for embedding the embedding convex part is formed on the inner wall of the lower end of the lower conductive sleeve.

33. A demarcation protection device according to claim 29, wherein: the conductive elastic sheet comprises a first contact sheet vertically arranged in the sleeved through hole and used for forming an inner contact surface, a second contact sheet vertically arranged on the outer side of the conductive sheet and used for forming an outer contact surface, and a first connecting sheet locked on the conductive sheet; one end of the first connecting sheet is connected with the first contact sheet, and the other end of the first connecting sheet is connected with the second contact sheet.

34. A demarcation protection device according to claim 33, wherein: the conductive elastic sheet also comprises a second connecting sheet vertically arranged on the outer side of the first contact sheet; the lower end of the second connecting sheet is connected with one end of the first connecting sheet, and the upper end of the second connecting sheet is connected with the upper end of the first contact sheet through a first arc-shaped connecting portion.

35. A demarcation protection device according to claim 34, wherein: the conductive elastic sheet also comprises a clamping convex part connected with the lower end of the first contact sheet.

36. A demarcation protection device according to claim 35, wherein: the conductive elastic sheet further comprises a second arc-shaped connecting part connected with the upper end of the second contact piece.

37. A demarcation protection device according to claim 25, wherein: still include the inlet wire cable that has first line nose.

38. A demarcation protection device according to claim 37, wherein: the first wire nose is in threaded connection with the first screw hole of the upper conducting rod.

39. A demarcation protection device according to claim 37, wherein: the outside cladding of inlet wire cable has first silicon rubber overcoat.

40. A demarcation protection device according to claim 25, wherein: the cable outlet device also comprises an outlet cable with a second wire nose.

41. A demarcation protection device according to claim 40, wherein: and the second wire lug is in threaded connection with a second screw hole of the lower conducting rod.

42. A demarcation protection device according to claim 40, wherein: and a second silicon rubber outer sleeve is coated outside the outgoing cable.

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