CN207199559U - A kind of outdoor closed injection fuse box - Google Patents

Abstract

A kind of outdoor closed injection fuse box, including fuse overcoat and the fusing injection equipment for being arranged on fuse overcoat inner chamber, fuse overcoat is made up of silicon rubber pipe sleeve with the resin lining integrally connected for being close to silicon rubber pipe sleeve inwall moulding by casting, one end of silicon rubber pipe sleeve and resin lining is cable inlet, the other end is the openend for loading or taking out fusing injection equipment, the side-walls of silicon rubber pipe sleeve and resin lining close to bottom offer the cable outlet of through-lumen, cable inlet and cable outlet are sealed to fill out respectively and are provided with into line conductive pole and outlet conductive pole；The fusing injection equipment includes fuse body and the injection equipment for assembling fuse body, injection equipment is made up of Guide spray unit and positioning onunit, the fuse body includes the dynamic fingertip being slidably arranged in blind hole and the fuse element for being connected to dynamic fingertip end, fuse described in the utility model, structure is novel, part is simplified, it is easy assemble, using reliable, protection rationally.

Description

A kind of outdoor closed injection fuse box

Technical field

Fuse technologies field is the utility model is related to, specially a kind of outdoor closed injection fuse box.

Background technology

Fuse is simplest protection electrical equipment, and it is used for protecting electrical equipment against the infringement of overload and short circuit current； By drop type, within doors formula outside mounting condition and purposes selection different type high-tension fuse such as room, for some special equipments High-tension fuse should select series special；The fuse that we often say is exactly fuse class.Its structure generally comprises cartridge fuse, contact The parts such as current-carrying part, support insulator and base, the quartz sand particulate for arc extinguishing is filled in cartridge fuse.Molten part is using molten Wire or sheet metal made of the relatively low metal material of point, it is connected on by protection circuit, the equipment in circuit or circuit When overloading or breaking down, molten part generates heat and melted, and so as to cut off circuit, reaches the purpose of protection circuit or equipment.City at present On field in existing outdoor closed fuse, its mounted inside is by porcelain bushing shell, built-in outlet screw rod, static contact seat, stationary contact Son, stationary contact sub-spring, guide rod, guide pipe, guide pipe support bowl, middle tactile son, middle tactile stroma, base, bottom, moving contact Assembling and outlet cable pour dress composition, wherein, outlet screw rod, static contact seat, stationary contact weld together, and guide pipe leans on axially Guide rod and support bowl positioning, support bowl are axially being pressed into porcelain by middle tactile stroma stop bit, the tactile stroma in centre with special equipment In set.This traditional fuse is being processed and in assembling, the tiny parts being related to are very more, and all parts are opened Mould, processing and forming technology are very cumbersome, and the assembling between each parts is also as cumbersome, cause the production of overall fuse Efficiency receives serious restriction；In addition, this kind of fuse relies on the connecting stud conducting electric current of end, the water conservancy diversion area of stud Limited, the bearing capacity of electric current is extremely limited, therefore traditional fuse can not use in the circuit of extra-high voltage heavy current；And And the fuse of this quasi-tradition is in actual use, the sub slow point phenomenon between tactile stroma of stationary contact can also often occurs, cause High-voltage arc breakdown insulator occurs in fuse and produces explosion phenomenon, extremely serious potential safety hazard be present.

Utility model content

In order to solve the above problems, the purpose of this utility model is to propose a kind of outdoor closed injection fuse box, and it is suitable With scope is wider, topology update grain husk, parts are more simplified, it is easier assemble, using it is more reliable, protect more reasonable, and be provided with Prevent slow separating device, can effectively avoid slowly separating disconnection between fuse element and button contact base, prevent explosion accident, eliminate peace Full hidden danger.

The utility model is for the taken technical scheme that solves the above problems：A kind of outdoor closed injection fusing Device, including fuse overcoat and the fusing injection equipment for being arranged on fuse overcoat inner chamber, the fuse overcoat is by silicon rubber Pipe sleeve and the resin lining integrally connected composition for being close to silicon rubber pipe sleeve inwall moulding by casting, the silicon rubber pipe sleeve and resin interlining One end of cylinder is cable inlet, and the other end is the openend for loading or taking out fusing injection equipment, silicon rubber pipe sleeve and tree Side-walls of the fat lining close to bottom offer the cable outlet of through-lumen, and cable inlet and cable outlet, which seal to fill out respectively, to be set Have into line conductive pole and outlet conductive pole；

The fusing injection equipment includes fuse body and the injection equipment for assembling fuse body, wherein, spraying machine Structure is made up of Guide spray unit and positioning onunit, the static finger contact seat of the Guide spray unit an including column structure and The pilot sleeve being arranged on static finger contact seat, the static finger contact seat offer blind hole, blind hole internal chamber wall edge towards one end of openend Circumference offers the first circumferential groove, and one is embedded with the first circumferential groove and is used for the first conductive spring touch finger, the aperture of blind hole and Pilot sleeve threaded connection is integrated, and static finger contact seat is connected conducting by the fastening bolt on blind hole bottom wall with entering line conductive pole；

The middle button contact base and be arranged on middle button contact base that the positioning onunit is set by an adjacent outlet conductive pole On the conductive wafer that conducting is bolted with outlet conductive pole form, the middle button contact base is one to be bolted on The fixed seat of cylindrical-shaped structure on resin lining, middle button contact base center are offered for passing through and fixing consolidating for fuse body Determine hole, fixing hole inwall circumferentially offers the second circumferential groove, is embedded with the second circumferential groove and is touched for the second spring of conduction Refer to, the conductive wafer is bolted the top sidewall for being arranged on middle button contact base；

The fuse body includes the dynamic fingertip being slidably arranged in blind hole and the fusing member for being connected to dynamic fingertip end Part, the dynamic fingertip are turned on the first spring touch finger and are fixed on by the radial pressure of the first spring touch finger in blind hole, fusing Element one end is located in pilot sleeve, after the other end passes through the fixing hole in middle button contact base, passes through the footpath of second spring fingertip To pressure fixing in fixing hole, and the first spring touch finger is with the radial pressure of second spring fingertip and less than in fuse element The tension force of compression spring, so that after fuse disruption in fuse element, compression spring drives fuse element and dynamic fingertip from quiet Spray and eject along pilot sleeve in button contact base.

As preferable, the silicon rubber pipe sleeve is located at cable inlet and the end of cable outlet is cast with caulking gum Cap.

As preferable, the end bolt that the resin lining is located at openend is connected with fuse base.

As preferable, it is described enter line conductive pole and outlet conductive pole be an external diameter and respective installation place cable inlet Or the cylindrical conductor that cable outlet internal diameter matches.

As the installation being mutually communicated with fixing hole preferable, that the middle button contact base is radially opened up by its bottom Hole, which hides to be provided with, prevents slow separating device, described to prevent that slow separating device includes a buffer spring matched with mounting hole internal diameter, is arranged on buffering Spring top is used to fix so that buffer spring to be sealed with buffer spring bottom is arranged on against the fixation ball of fixed fuse body Screw in mounting hole.

As preferable, the dynamic fingertip end is connected conducting with fuse element by a screw nipple, threaded connection Pipe one end is bonded as one with the preventing arc sleeve on fuse element, and the other end is threadedly coupled with moving contact.

As preferable, the silicone rubber tube puts the installed part being provided with for installing fixed fuse.

Compared with prior art, the utility model has the advantages that：

First, a kind of outdoor closed injection fuse box described in the utility model, first, made pottery different from traditional use Porcelain material is used as fusing as fuse overcoat using anticorrosive anti-wear and insulation, silicone rubber material in light weight Device overcoat, while the resin lining that cast high rigidity insulate is integrally formed in silicon rubber pipe sleeve, resin lining compensate for silicon rubber Glue pipe socket component installation process hardness deficiency, dedicated in overcoat installation connection fusing component, both combine, Significantly reduce the overall weight of fuse overcoat, and multiple openings such as picture cable inlet in overcoat, cable outlet, Again when being sealed using sealing rubber cap, it is directly combined with silicone rubber seal, and sealing effectiveness more preferably, improves opening Sealing property.

Second, a kind of outdoor closed injection fuse box described in the utility model, secondly, made using two spring touch fingers For the structure of conducting transmission, instead of in traditional fuse using the structure type that stud is conductive, due to stud sectional area compared with Small, the current capacity of transmission is extremely limited, and spring touch finger is a peripheral annular helical structure, and compared to stud, cross-sectional area expands Big several times, therefore, the current carrying capacities of spring touch finger also expand several times therewith, and having broken away from traditional stud conduction can only use In relatively low piezoelectricity, low current cable circuit in constraint, using spring touch finger conduct electric current, its can apply with 12kV ~ 15kV high-voltage power transmission, and the bearing capacity of electric current is more than 5-8 times of conventional fuse is very big to improve fuse Application.

3rd, a kind of outdoor closed injection fuse box described in the utility model, again, compared in conventional fuse Put Standard, the fusing injection equipment in the application fuse has greatly simplified the quantity of parts, each parts it Between assembling it is more flexible and convenient, and the fusing injection equipment of the application it is simple in construction directly, without labyrinth, die sinking makes Also it is extremely simple, the defects of having broken away from each parts complex manufacturing technology in conventional fuse, in general, compared to traditional Fuse, the application make fuse production cost reduce a lot, and packaging efficiency improves a lot, and structure, which is simplified, to be optimized very More, the bearing capacity of electric current enhances a lot.

4th, a kind of outdoor closed injection fuse box described in the utility model is finally, extra on middle button contact base There is provided anti-slow separating device, compresses fixed ball by buffer spring, fixed ball is resisted against on fuse element outer wall, so as to molten Disconnected element forms further effectively fixed, prevents fuse in use, fuse element due to Action of Gravity Field slowly to Lower movement and cause the slow disjunction between fuse element and button contact base to be opened, effectively prevent the fuse caused by slow point and burst thing Therefore generation, eliminate potential safety hazard.

Brief description of the drawings

Fig. 1 is the structural representation under fuse channel status in the utility model；

Fig. 2 is the structural representation under fuse off-state in the utility model；

Fig. 3 is the structural representation of fuse overcoat in the utility model；

Fig. 4 is the structural representation of fusing injection equipment in the utility model；

Fig. 5 is the structural representation of Guide spray unit in the utility model fusing injection equipment；

Fig. 6 is the structural representation that onunit is positioned in the utility model fusing injection equipment；

Fig. 7 is the structural representation of fuse body in the utility model fusing injection equipment；

Marked in figure：1st, silicon rubber pipe sleeve, 101, sealing rubber cap, 2, resin lining, 3, cable inlet, 301, enter line and lead Electric post, 4, cable outlet, 401, outlet conductive pole, 5, static finger contact seat, 501, blind hole, the 502, first circumferential groove, 503, fastening spiral shell Bolt, 6, pilot sleeve, the 7, first spring touch finger, 8, middle button contact base, 801, fixing hole, the 802, second circumferential groove, 803, installation Hole, 9, conductive wafer, 10, second spring fingertip, 11, dynamic fingertip, 1101, screw nipple, 12, fuse element, 13, opening End, 14, fuse base, 15, prevent slow separating device, 1501, buffer spring, 1502, fixed ball, 1503, screw, 16, installed part.

Embodiment

The utility model is elaborated with reference to specific embodiment, the present embodiment is with technical solutions of the utility model Premised on, give detailed embodiment and specific operating process.

As illustrated, the utility model is a kind of outdoor closed injection fuse box, including fuse overcoat and it is arranged on The fusing injection equipment of fuse overcoat inner chamber, the fuse overcoat is by silicon rubber pipe sleeve 1 and is close to the inwall of silicon rubber pipe sleeve 1 The integrally connected of resin lining 2 of moulding by casting is formed, and one end of the silicon rubber pipe sleeve 1 and resin lining 2 is cable inlet 3, The other end is the openend 13 for loading or taking out fusing injection equipment, and silicon rubber pipe sleeve 1 and resin lining 2 are close to bottom Side-walls offer the cable outlet 4 of through-lumen, and cable inlet 3 and cable outlet 4 seal to fill out respectively to be provided with into line conductive pole 301 and outlet conductive pole 401；

The fusing injection equipment includes fuse body and the injection equipment for assembling fuse body, wherein, spraying machine Structure is made up of Guide spray unit and positioning onunit, and the Guide spray unit includes the static finger contact seat 5 of a column structure With the pilot sleeve 6 being arranged on static finger contact seat 5, the static finger contact seat 5 offers blind hole 501 towards one end of openend 13, blind The internal chamber wall of hole 501 circumferentially offers the first circumferential groove 502, and one is embedded with the first circumferential groove 502 and is used for the first conductive bullet Spring fingertip 7, the aperture of blind hole 501 is threadedly coupled with pilot sleeve 6 to be integrated, and static finger contact seat 5 passes through tight on the bottom wall of blind hole 501 Fixing bolt 503 is connected conducting with entering line conductive pole 301；

The middle button contact base 8 and be arranged on middle touch that the positioning onunit is set by an adjacent outlet conductive pole 401 The conductive wafer 9 that conducting is bolted with outlet conductive pole 401 referred on seat 8 is formed, and the middle button contact base 8 passes through for one The fixed seat for the cylindrical-shaped structure being bolted on resin lining 2, the middle center of button contact base 8, which offers, to be used for through and fixes The fixing hole 801 of fuse body, the inwall of fixing hole 801 circumferentially offer the second circumferential groove 802, embedding in the second circumferential groove 802 Provided with the second spring fingertip 10 for conduction, the conductive wafer 9 is bolted the top for being arranged on middle button contact base 8 Side wall；

The fuse body includes the dynamic fingertip 11 being slidably arranged in blind hole 501 and is connected to the dynamic end of fingertip 11 Fuse element 12, the dynamic fingertip 11 are turned on the first spring touch finger 7 and are fixed on by the radial pressure of the first spring touch finger 7 In blind hole 501, the one end of fuse element 12 is located in pilot sleeve 6, after the other end passes through the fixing hole 801 in middle button contact base 8, It is fixed on by the radial pressure of second spring fingertip 10 in fixing hole 801, and the first spring touch finger 7 and second spring fingertip 10 Radial pressure and the tension force less than the compression spring in fuse element 12 so that after fuse disruption in fuse element 12, pressure Contracting spring drives fuse element 12 and dynamic fingertip 11 to be sprayed from static finger contact seat 5 along pilot sleeve 6 and ejected.

Be specific embodiment of the present utility model above, can more than on the basis of be improved further, optimize or limit It is fixed.

Further, the silicon rubber pipe sleeve 1 is located at cable inlet 3 and the end of cable outlet 4 is cast with sealing rubber Capsule 101.

Further, the resin lining 2 is located at the end bolt of openend 13 and is connected with fuse base 14.

Further, it is described enter line conductive pole 301 and outlet conductive pole 401 be an external diameter and respective installation place cable The cylindrical conductor that entrance 3 or the internal diameter of cable outlet 4 match.

Further, the peace being mutually communicated with fixing hole 801 that the middle button contact base 8 is radially opened up by its bottom Fill hole 803 and hide to be provided with and prevent slow separating device 15, it is described to prevent that slow separating device 15 includes a buffer spring matched with the internal diameter of mounting hole 803 1501st, the top of buffer spring 1501 is arranged on to be used for against the fixation ball 1502 for fixing fuse body and be arranged on buffer spring 1501 bottoms are fixed on screw 1503 in mounting hole 803 so that buffer spring 1501 to be sealed.

Further, the end of dynamic fingertip 11 is connected conducting, spiral shell by a screw nipple 1101 with fuse element 12 The one end of line connecting tube 1101 is bonded as one with the preventing arc sleeve on fuse element 12, and the other end is threadedly coupled with moving contact 11.

Further, the installed part 16 for installing fixed fuse is provided with the silicon rubber pipe sleeve 1.

It is described above, only it is preferred embodiment of the present utility model, not the utility model is made any formal Limitation, although the utility model with preferred embodiment description as above, but be not limited to the utility model, it is any ripe Professional and technical personnel is known, is not being departed from the range of technical solutions of the utility model, when using technology contents described above The a little change or modification made are the equivalent embodiment of equivalent variations, as long as being without departing from technical solutions of the utility model Hold, any simple modification, equivalent change and modification made according to the technical essence of the utility model to above example, still Belong in the range of technical solutions of the utility model.

Claims (7)

1. a kind of outdoor closed injection fuse box, including fuse overcoat and the fusing injection for being arranged on fuse overcoat inner chamber Mechanism, it is characterised in that：The fuse overcoat is by silicon rubber pipe sleeve（1）Be close to silicon rubber pipe sleeve（1）Inwall moulding by casting Resin lining（2）Integrally connected is formed, the silicon rubber pipe sleeve（1）With resin lining（2）One end be cable inlet（3）, The other end is the openend for loading or taking out fusing injection equipment（13）, silicon rubber pipe sleeve（1）With resin lining（2）It is close The side-walls of bottom offer the cable outlet of through-lumen（4）, cable inlet（3）And cable outlet（4）Sealing, which is filled out, respectively sets Have into line conductive pole（301）With outlet conductive pole（401）；

It is described fusing injection equipment include fuse body and the injection equipment for assembling fuse body, wherein, injection equipment by Guide spray unit and positioning onunit are formed, and the Guide spray unit includes the static finger contact seat of a column structure（5）With It is arranged on static finger contact seat（5）On pilot sleeve（6）, the static finger contact seat（5）Towards openend（13）One end offer blind hole （501）, blind hole（501）Internal chamber wall circumferentially offers the first circumferential groove（502）, the first circumferential groove（502）In be embedded with a use In the first spring touch finger of conduction（7）, blind hole（501）Aperture and pilot sleeve（6）Threaded connection is integrated, static finger contact seat （5）Pass through blind hole（501）Fastening bolt on bottom wall（503）With entering line conductive pole（301）Connection conducting；

The positioning onunit is by an adjacent outlet conductive pole（401）The middle button contact base of setting（8）It is middle tactile with being arranged on Refer to seat（8）On with outlet conductive pole（401）It is bolted the conductive wafer of conducting（9）Form, the middle button contact base（8） Resin lining is bolted on for one（2）On cylindrical-shaped structure fixed seat, middle button contact base（8）Center offers use In passing through and the fixing hole of fixed fuse body（801）, fixing hole（801）Inwall circumferentially offers the second circumferential groove（802）, Second circumferential groove（802）In be embedded with for conduction second spring fingertip（10）, the conductive wafer（9）It is bolted It is arranged on middle button contact base（8）Top sidewall；

The fuse body includes slidably being arranged on blind hole（501）Interior dynamic fingertip（11）Be connected to dynamic fingertip（11）End Fuse element（12）, the dynamic fingertip（11）With the first spring touch finger（7）Turn on and pass through the first spring touch finger（7）Radial direction Pressure fixing is in blind hole（501）It is interior, fuse element（12）One end is located at pilot sleeve（6）Interior, the other end passes through middle button contact base （8）In fixing hole（801）Afterwards, second spring fingertip is passed through（10）Radial pressure be fixed on fixing hole（801）It is interior, and first Spring touch finger（7）With second spring fingertip（10）Radial pressure and less than fuse element（12）The tension force of interior compression spring, So that fuse element（12）After interior fuse disruption, compression spring drives fuse element（12）And dynamic fingertip（11）From static contact finger Seat（5）It is middle along pilot sleeve（6）Injection ejection.

A kind of 2. outdoor closed injection fuse box as claimed in claim 1, it is characterised in that：The silicon rubber pipe sleeve（1） Positioned at cable inlet（3）And cable outlet（4）End be cast with sealing rubber cap（101）.

A kind of 3. outdoor closed injection fuse box as claimed in claim 1, it is characterised in that：The resin lining（2）Position In openend（13）End bolt be connected with fuse base（14）.

A kind of 4. outdoor closed injection fuse box as claimed in claim 1, it is characterised in that：It is described enter line conductive pole （301）With outlet conductive pole（401）It is the cable inlet of an external diameter and respective installation place（3）Or cable outlet（4）Internal diameter phase The cylindrical conductor of matching.

A kind of 5. outdoor closed injection fuse box as claimed in claim 1, it is characterised in that：The middle button contact base（8） Radially opened up by its bottom and fixing hole（801）The mounting hole being mutually communicated（803）Hide to be provided with and prevent slow separating device（15）, It is described to prevent slow separating device（15）Including one and mounting hole（803）The buffer spring of internal diameter matching（1501）, be arranged on buffer spring （1501）Top is used for the fixation ball against fixed fuse body（1502）Be arranged on buffer spring（1501）Bottom will be with will be slow Rush spring（1501）Sealing is fixed on mounting hole（803）In screw（1503）.

A kind of 6. outdoor closed injection fuse box as claimed in claim 1, it is characterised in that：The dynamic fingertip（11）End Pass through a screw nipple（1101）With fuse element（12）Connection conducting, screw nipple（1101）One end and fuse element （12）On preventing arc sleeve be bonded as one, the other end and dynamic fingertip（11）Threaded connection.

A kind of 7. outdoor closed injection fuse box as claimed in claim 1, it is characterised in that：The silicon rubber pipe sleeve（1） On be provided with installed part for installing fixed fuse（16）.