CN207852604U - Outdoor all insulation enclosed type expulsion fuse - Google Patents

Abstract

The utility model discloses a kind of outdoor all insulation enclosed type expulsion fuses, including ceramic tube body and fuse-link, upper end sets upper static contact in ceramic tube body, the upper binding post on ceramic tube body top, the inner end of upper binding post is stretched into ceramic tube body and is connect with upper static contact, upper static contact includes tubular electric conductor and ring spring, tubular electric conductor includes tube and conductive sheet, tube has several along the circumferentially spaced elastic piece of tube, fastening screw passes through screw perforation to coordinate with threaded hole, the outerplanar of conductive sheet is affixed with inner end end face, on each elastic piece with inside bending formed suitable for the bending section that is electrically connected with upper moving contact, the outside of bending section forms groove, ring spring is set in groove, the free end of elastic piece extends to form guide portion to far from tube central axes direction.In fuse in the utility model, the amount of parts for constituting upper static contact is less, easy to assembly, can effectively reduce production cost, and have good using effect.

Description

Outdoor all insulation enclosed type expulsion fuse

Technical field

The utility model is related to a kind of outdoor all insulation enclosed type expulsion fuses, belong to fuse structure design neck Domain.

Background technology

A kind of outdoor closed fuse, including ceramic umbrella cover, arc extinguishing set are disclosed in patent document CN206040586U And fusible link, the upper and lower ends in ceramic umbrella cover are separately installed with the first static contact and the second static contact, arc extinguishing set is insulation tube Body and its epimere are fixed with the first cylindrical moving contact, and arc extinguishing set is outer to be cased with the second moving contact that can be slided, and second is dynamic tactile Spring is equipped between head and the lower end of arc extinguishing set, it is dynamic with the first moving contact and second respectively that fusible link is located at its both ends in arc extinguishing set Contact is connected, and fusible link, which pulls the second moving contact, makes its compressed spring and in the lower end of arc extinguishing set, the first static contact packet It includes circular support, tighten spring and multiple contacts, the top of circular support is equipped with binding post, and binding post is upper from ceramic umbrella cover Side is pierced by and is locked on ceramic umbrella cover by insulating seal, and the lower end outer wall of binding post is equipped with annular groove, and multiple contacts are uniform Mounted on the periphery of circular support, the outside of multiple contacts is tightened spring bundle by two and is held together, and the upper end inner wall of contact, which coincide, to be stuck in It in the annular groove of binding post and fits, when the first moving contact is inserted into circular support, the outer wall of the first moving contact can make Multiple contacts openings are simultaneously in close contact therewith.Fuse in above patent document the problem is that, the first static contact (i.e. phase When the upper static contact in the application) structure it is complex, assembly manipulation is cumbersome, and production cost is higher.

Utility model content

In this regard, the utility model is intended to provide a kind of outdoor all insulation enclosed type expulsion fuse reasonable for structure, it should It is reasonable that the structure of upper static contact in fuse simplifies, and convenient for assembly, can effectively save production cost.

Realizing the technical solution of the utility model aim is：

A kind of open air all insulation enclosed type expulsion fuse, including ceramic tube body and melting in the ceramic tube body Disconnected body forms cyclic annular full skirt on the outer wall of the ceramics tube body, and the middle part of the ceramics tube body is equipped with for fixed installation Fitting, the fuse-link are column structure, inside wear fuse, the top of the fuse-link is equipped with and fuse electricity The upper moving contact of connection, upper end sets the upper static contact being connected with the upper moving contact, the ceramics in the ceramic tube body The upper binding post on tube body top, the inner end of the upper binding post is stretched into the ceramic tube body to be connect with the upper static contact, institute It includes integrally formed tubular electric conductor and the ring spring that is set in outside the tubular electric conductor to state upper static contact, the pipe Shape electric conductor includes having the tube of tube chamber and being connected in described tube one end and perpendicular to the tube axis direction Conductive sheet, the tube have it is several along the circumferentially spaced elastic piece of tube, the center of the conductive sheet It is provided with screw perforation, threaded hole is formed on the inner end end face of the upper binding post, fastening screw is perforated across the screw Coordinate with the threaded hole and be fixedly connected with the tubular electric conductor with the upper binding post, and the outerplanar of the conductive sheet and The inner end end face is affixed, on each elastic piece with inside bending formed suitable for the bending that is electrically connected with the upper moving contact Portion, the outside of the bending section form groove, and the ring spring is set in the groove, and the free end of the elastic piece is to remote Guide portion is extended to form from tube central axes direction.

In above-mentioned technical proposal, the fitting includes the first arc clip, the second arc clip and installation sheet, institute The one end for stating installation sheet is fixedly connected with first arc clip, the both ends of first arc clip and second arc The both ends of intermediate plate are fixedly connected by fastener, the folder being formed between first arc clip and second arc clip It holds hole to be socketed with the ceramic tube body corresponding site, installation hook and mounting hole, the mounting hole is formed on the installation sheet It is interior to be equipped with installation bolt.

In above-mentioned technical proposal, the fastener is bolt fastener.

In above-mentioned technical proposal, the top of the ceramics tube body is equipped with rubbery sealed body, the corresponding portion of the upper binding post It is wrapped up by the rubbery sealed body position.

The utility model has the effect of positive：In fuse in the utility model, the parts of upper static contact are constituted Negligible amounts, it is easy to assembly, production cost can be effectively reduced, and there is good using effect.

Description of the drawings

Fig. 1 is the structural schematic diagram of outdoor all insulation enclosed type expulsion fuse in the utility model；

Fig. 2 is the partial enlarged view at A in Fig. 1；

Fig. 3 is the structural schematic diagram of upper static contact in the utility model；

Fig. 4 is the structural schematic diagram of tubular electric conductor in Fig. 3；

Fig. 5 is the structural schematic diagram of installs fixture in the utility model；

Fig. 6 from installs fixture shown in another angle observation chart 5 when structural schematic diagram.

Reference numeral is as shown in the figure：1- ceramics tube bodies；11- ring-type full skirts；2- fuse-links；3- fittings；31- first Arc clip；The second arc clips of 32-；33- installation sheets；34- installation hooks；35- installation bolts；The upper moving contacts of 4-；5- is upper quiet Contact；51- tubular electric conductors；52- ring springs；53- tubes；54- conductive sheets；55- elastic pieces；The bending sections 56-；57- is recessed Slot；58- guide portions；The upper binding posts of 6-；7- fastening screws；8- rubbery sealed bodies.

Specific implementation mode

The concrete structure in the utility model is done with explanation with reference to the accompanying drawings of the specification：

A kind of open air all insulation enclosed type expulsion fuse, as shown in Figures 1 to 4 comprising ceramic tube body 1 and be set to Fuse-link 2 in the ceramics tube body 1 forms cyclic annular full skirt 11, the ceramics tube body 1 on the outer wall of the ceramics tube body 1 Middle part be equipped with the fitting 3 for fixed installation, the fuse-link 2 is column structure, inside wear fuse, it is described molten The top of disconnected body 2 is equipped with the upper moving contact 4 be electrically connected with the fuse, in the ceramics tube body 1 upper end set with it is described dynamic tactile First 4 upper static contacts 5 being connected, the upper binding post 6 on 1 top of the ceramics tube body, institute is stretched into the inner end of the upper binding post 6 It states and is connect with the upper static contact 5 in ceramic tube body 1, the upper static contact 5 includes integrally formed tubular electric conductor 51 and set The ring spring 52 being located at outside the tubular electric conductor 51, the tubular electric conductor 51 include 53 He of tube for having tube chamber It is connected in 53 one end of the tube and perpendicular to the conductive sheet 54 of 53 axis direction of the tube, the tube 53 has It is several along 53 circumferentially spaced elastic piece 55 of tube, the center of the conductive sheet 54 is provided with screw perforation, institute It states and forms threaded hole on the inner end end face of binding post 6, fastening screw 7 passes through screw perforation to coordinate with the threaded hole The tubular electric conductor 51 is fixedly connected with the upper binding post 6, and the outerplanar of the conductive sheet 54 and the inner end end Face is affixed, on each elastic piece 55 with inside bending formed suitable for the bending section 56 that is electrically connected with the upper moving contact 4, it is described The outside of bending section 56 forms groove 57, and the ring spring 52 is set in the groove 57, the free end of the elastic piece 55 Guide portion 58 is extended to form to far from 53 central axes direction of the tube.In fuse in the present embodiment, stationary contact in composition First 5 amount of parts is less, easy to assembly, can effectively reduce production cost, and have good using effect, when upper dynamic tactile First 4 move up and are inserted into the tube 53, and contacts with upper moving contact 4 by the bending section 56 and to realize and be electrically connected, ring The presence of shape spring 52 can ensure that the reliability that bending section 56 is electrically connected with upper moving contact 4, and the presence of guide portion 58 is conducive to described Upper moving contact enters inside the tube 53.

Further, the fitting 3 includes the first arc clip 31, the second arc clip 32 and installation sheet 33, institute The one end for stating installation sheet 33 is fixedly connected with first arc clip 31, the both ends of first arc clip 31 and described the The both ends of two arc clips 32 are fixedly connected by fastener, are formed in first arc clip 31 and are pressed from both sides with second arc Holding holes between piece 32 are socketed with 1 corresponding site of the ceramic tube body, and installation 34 Hes of hook are formed on the installation sheet 33 Mounting hole, the mounting hole is interior to be equipped with installation bolt 35, shown in Fig. 5 and Fig. 6, the fastener in the present embodiment For bolt fastener.Fitting 3 using the above structure first passes through the installation hook when the fuse is fixedly mounted 34 mount with the hanging hole on external mounting bracket, can avoid fuse in this way and fall during the installation process, make to be conducive to high-altitude Industry, and again locked installation sheet 33 and external mounting bracket by the installation bolt 35 after the completion of mounting, pacify simultaneously Dress hook 34 also functions to the effect being auxiliarily fixed with the hanging hole cooperation on external mounting bracket, easy installation and reliable.

Shown in Fig. 1, the top of the ceramic tube body 1 in the present embodiment is equipped with rubbery sealed body 8, the upper wiring The corresponding site of column 6 is wrapped up by the rubbery sealed body 8, by the way that rubbery sealed body 8 is arranged by the corresponding site packet of upper binding post 6 It wraps up in play good sealing effect, rainwater is avoided to enter ceramic tube body by the gap between upper binding post 6 and ceramic tube body 1 In 1.

Obviously, above-described embodiment of the utility model is only intended to clearly illustrate the utility model example, and It is not the restriction to the embodiment of the utility model.For those of ordinary skill in the art, in above description On the basis of can also make other variations or changes in different ways.There is no need and unable to give all embodiments It is exhaustive.And the obvious changes or variations that these connotations for belonging to the utility model are extended out still fall within this practicality Novel protection domain.

Claims (3)

1. a kind of open air all insulation enclosed type expulsion fuse, including ceramic tube body (1) and in the ceramic tube body (1) Fuse-link (2), form cyclic annular full skirt (11) on the outer wall of the ceramics tube body (1), set in the middle part of the ceramics tube body (1) Be useful for be fixedly mounted fitting (3), the fuse-link (2) be column structure, inside wear fuse, the fuse-link (2) top is equipped with the upper moving contact (4) that be electrically connected with the fuse, and described ceramics tube body (1) interior upper end is set upper to be moved with described The upper static contact (5) that contact (4) is connected, the upper binding post (6) on described ceramics tube body (1) top, the upper binding post (6) Inner end stretch into the ceramic tube body (1) and connect with the upper static contact (5), which is characterized in that the upper static contact (5) is wrapped It includes integrally formed tubular electric conductor (51) and is set in the external ring spring (52) of the tubular electric conductor (51), the pipe Shape electric conductor (51) includes having the tube (53) of tube chamber and being connected in the tube (53) one end and perpendicular to the pipe The conductive sheet (54) of shape portion (53) axis direction, the tube (53) have several circumferentially spaced along tube (53) Elastic piece (55), the center of the conductive sheet (54) is provided with screw and perforates, on the inner end end face of the upper binding post (6) Threaded hole is formed, fastening screw (7) passes through screw perforation to coordinate the tubular electric conductor (51) with the threaded hole It is fixedly connected with the upper binding post (6), and the outerplanar of the conductive sheet (54) is affixed with the inner end end face, each elastic piece (55) on inside bending formed suitable for the bending section (56) that is electrically connected with the upper moving contact (4), the bending section (56) outside forms groove (57), and the ring spring (52) is set in the groove (57), the elastic piece (55) from Guide portion (58) is extended to form from end to far from the tube (53) central axes direction；The fitting (3) includes first Arc clip (31), the second arc clip (32) and installation sheet (33), one end and first arc of the installation sheet (33) Clevis piece (31) is fixedly connected, and the both ends of first arc clip (31) and the both ends of second arc clip (32) pass through Fastener is fixedly connected, be formed in holding holes between first arc clip (31) and second arc clip (32) with Described ceramics tube body (1) corresponding site is socketed, and installation hook (34) and mounting hole, the peace are formed on the installation sheet (33) It fills and is equipped with installation bolt (35) in hole.

2. open air all insulation enclosed type expulsion fuse according to claim 1, which is characterized in that the fastener is Bolt fastener.

3. open air all insulation enclosed type expulsion fuse according to claim 1, which is characterized in that the ceramics tube body (1) top is equipped with rubbery sealed body (8), and the corresponding site of the upper binding post (6) is wrapped up by the rubbery sealed body (8).