CN202772091U - Upper die cone for high voltage fuse - Google Patents
Upper die cone for high voltage fuse Download PDFInfo
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- CN202772091U CN202772091U CN 201220352867 CN201220352867U CN202772091U CN 202772091 U CN202772091 U CN 202772091U CN 201220352867 CN201220352867 CN 201220352867 CN 201220352867 U CN201220352867 U CN 201220352867U CN 202772091 U CN202772091 U CN 202772091U
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Abstract
The utility model discloses an upper die cone for a high voltage fuse, wherein the high-voltage fuse is provided with a cylindrical main body insulator; an upper external electric wire is fixed on the upper part of the main body insulator, and a lower external electric wire is fixed on the side surface of the lower part; the upper die cone is used for connecting the upper external electric wire with an upper electrode. The upper die cone is provided with a cylindrical connector, which is connected with the upper external electric wire by inserting the upper external electric wire into the upper part of the connector and then calking, and a bolt which is mounted on the upper electrode is screwed on the lower part of the connector. The diameter of the upper end part of the connector gradually increases towards the upper end. In addition, convex and concave structures are formed on the peripheral surface of the lower part of the connector. According to the structure, peeling between the upper external electric wire and the insulating material can be inhibited, and insulation can be maintained in the upper die cone.
Description
Technical field
The utility model relates to a kind of upper mould cone for high-tension fuse.
Background technology
In the past, known promising protection power distribution transformer arranged, was taking in the high-tension fuse of fuse cylinder in porcelain main body insulator processed.Top at the main body insulator is provided with upper electrode, is provided with lower electrode in the bottom of main body insulator.The fuse cylinder is connected upper electrode with lower electrode.In the upper end of fuse cylinder, be provided with the insulating cylinder of having fixed the tubular upper contact.In insulating cylinder, run through that the bottom contact with ring-type contact site being installed.Lower end at insulating cylinder is fixed with display barrel.Between bottom contact and display barrel, be provided with the parts of energizing.In insulating cylinder, between top contact and bottom contact, be provided with fuse by the parts stretching of energizing.The electrical fuse element of fuse and fuse lead-in wire are cascaded.Front end at the fuse lead-in wire is provided with splicing ear.Tighten intrinsic splicing ear at the fixed part that is arranged at the bottom contact.
The upper mould cone that upper electrode is connected with the upper external electric wire is installed in the upper end of main body insulator.The upper external electric wire is connected with upper electrode via the upper end through hole of main body insulator.In addition, the lower side at the main body insulator is equipped with the lower die cone that lower electrode is connected with the bottom external cable.The bottom external cable is connected with lower electrode via the lower side through hole of main body insulator.These mould cones form by resin material is formed.
The patent documentation 1:ZL patent No. 200820116158.5
But, in the upper mould cone of above-mentioned high-tension fuse, when the goods before and after when assembling, bale packing are processed and goods when installing, in that having been applied, external cable causes to the external force of side or the blast that produces because of high wind, vibration in the situation that external cable shakes, might cause between mould cone inside, mould cone and external cable, peeling off, and peel off at mould cone and the junction surface of insulator, the insulation on upper mould is bored dies down.In addition, the external force to the side also might cause the external cable broken string.
The utility model content
The utility model is In view of the foregoing made, and its purpose is, provides a kind of and can keep the high-tension fuse that insulation and external cable can not break and bore with upper mould.
Below, the means and the action effect thereof that are used for realizing above-mentioned purpose are described.
The utility model provides a kind of high-tension fuse to bore with upper mould, be used to high-tension fuse, this high-tension fuse has main body insulator cylindraceous, the fixing upper external electric wire on the top of main body insulator, and at the fixing bottom external cable of lower side, described high-tension fuse is connected described upper external electric wire with the upper mould cone with upper electrode, has connecting piece cylindraceous, by inserting described upper external electric wire on the top of this connecting piece and carrying out calking, thereby this connecting piece is connected with described upper external electric wire, and screw togather the bolt that is installed on the described upper electrode in the bottom of connector, the upper end of described connecting piece is more larger towards upper end diameter, is formed with concavo-convex at the lower, outer perimeter face of described connecting piece.
Consist of according to this, the upper end of connecting piece is more larger towards upper end diameter, so when the upper external electric wire is crooked to the side, can suppresses the upper external electric wire and abut to the upper end of connecting piece and apply centrality load, can avoid bending.In addition, form at the lower, outer perimeter face of connecting piece concavo-convex, so can reinforce and resin material between combination.Therefore, can suppress peeling off between upper external electric wire and the resin material, can in the upper mould cone, keep insulation.
In above-mentioned high-tension fuse was bored with upper mould, described connecting piece was fitted in the recess of the upper end that is formed at described main body insulator, and the upper end of described connecting piece is configured to lower than the upper end of described main body insulator.
Consist of according to this, the upper end of connecting piece is set as lower than the upper end of main body insulator, so when upper external electric wire during to the side bending, support the upper end of main body insulator, so can reduce the load to the upper external electric wire.Therefore, can suppress peeling off between upper external electric wire and the resin material, can in the upper mould cone, keep insulation.
In above-mentioned high-tension fuse is bored with upper mould, have the lower end installation portion of the upper end that is installed in described main body insulator, this lower end installation portion is more less towards described main body insulator side diameter.
Consist of according to this, the lower end installation portion of upper mould cone is made as more less towards main body insulator side diameter, so when being installed to the upper mould cone on the main body insulator, can connect airtight by pressing.Therefore, can in the upper mould cone, keep insulation.
In above-mentioned high-tension fuse was bored with upper mould, the lower end edge portion of boring in described upper mould was formed with flange part, and the upper angled section that bores in described upper mould is formed with stage portion with the part that described flange part contacts.
Consist of according to this, when the upper mould cone has been applied in external force to the side, can keep flange part to the butt of the edge of the upper end of main body insulator.In addition, when being installed to the upper mould cone on the main body insulator, change by the angle of observing stage portion, can be by the increase and decrease of Visual Confirmation to power.
In above-mentioned high-tension fuse is bored with upper mould, have the lower end installation portion of the upper end that is installed in described main body insulator, be formed with the fitting portion chimeric with the upper end of described main body insulator at this lower end installation portion.
Consist of according to this, the lower end installation portion of boring in upper mould is formed with the fitting portion chimeric with the upper end of main body insulator, so when being installed to the upper mould cone on the main body insulator, the lower end installation portion is fitted to the upper end of main body insulator and connects airtight.Therefore, can in the upper mould cone, keep insulation.
With in the upper mould cone, have the lower end installation portion of the upper end that is installed in described main body insulator at above-mentioned high-tension fuse, be formed with jog at the outer peripheral face of this lower end installation portion.
Consist of according to this, formed jog at the outer peripheral face of the lower end of the upper end that is installed in main body insulator installation portion, so when being installed to the upper mould cone on the main body insulator, can making the protuberance of jog abut to the upper end of main body insulator and connect airtight.In addition, by at recess seal member being set, can making seal member abut to the upper end of main body insulator and connect airtight.Therefore, can in the upper mould cone, keep insulation.
In above-mentioned high-tension fuse is bored with upper mould, have the coating member that covers on the described upper external electric wire, the leading section of this coating member is more less towards point diameter.
Consist of according to this, the leading section of coating member is more less towards point diameter, so when the upper external electric wire is crooked to the side, can suppresses upper external electric wire and insulating material and peel off near the front end of upper external electric wire.Therefore, can in the upper mould cone, keep insulation.
In above-mentioned high-tension fuse is bored with upper mould, comprise also and strengthen lid that this is strengthened covering front end and the connecting portion between the described upper external electric wire that described upper mould is bored and covers.
Consist of according to this, owing to also comprise with the front end of described upper mould cone and the reinforcement lid of the covering of the connecting portion between the upper external electric wire, so even the upper external electric wire has been applied external force, also can suppress bending.Therefore, can suppress peeling off between upper external electric wire and the resin material, can in the upper mould cone, keep insulation.
In above-mentioned high-tension fuse was bored with upper mould, the upper periphery face of boring in described upper mould was formed with a plurality of grooves or raised line.
According to this formation, owing to formed a plurality of grooves or raised line at the upper periphery face, so even the upper external electric wire has been applied external force to the side, also can suppress crooked.Therefore, can suppress peeling off between upper external electric wire and the resin material, can in the upper mould cone, keep insulation.
In above-mentioned high-tension fuse is bored with upper mould, be filled with insulating material or resin material inserting in the hole of the described upper external electric wire of the insertion of described connecting piece.
Consist of according to this, owing to filled insulating material or resin material the inserting in the hole of insertion external cable of connecting piece, so can suppress to cause hydropexis from the external cable encroached water.Thus, because can occluded water, cause the connecting piece breakage so can prevent the volumetric expansion when freezing.Therefore, can in the upper mould cone, keep insulation.
With in the upper mould cone, be formed with insulation pleat that top with described main body insulator cover at the outer peripheral face of described upper mould cone at above-mentioned high-tension fuse.
Consist of according to this, owing to the insulation pleat that has formed at outer peripheral face the top covering of main body insulator, so can suppress tracking.
According to the utility model, can keep insulation with upper mould cone and external cable can not break at high-tension fuse.
Description of drawings
Fig. 1 is the cutaway view of the internal structure of expression high-tension fuse.
Fig. 2 is the cutaway view of structure of the upper mould cone of expression high-tension fuse.
Fig. 3 is the cutaway view of structure of the upper mould cone of expression high-tension fuse.
Fig. 4 is the cutaway view of structure of the upper mould cone of expression high-tension fuse.
Fig. 5 is the cutaway view of structure of the upper mould cone of expression high-tension fuse.
Fig. 6 is the cutaway view of structure of the upper mould cone of expression high-tension fuse.
Fig. 7 is the cutaway view of structure of the upper mould cone of expression high-tension fuse.
Fig. 8 is the cutaway view of outer surface of the upper mould cone of expression high-tension fuse.
Fig. 9 is the end view of fixed part of the upper mould cone of expression high-tension fuse.
Figure 10 is the cutaway view of structure of the upper mould cone of expression high-tension fuse.
Figure 11 is the figure of expression high-tension fuse and high salt tolerant device.
Figure 12 (a) (b) (c) is the cutaway view of structure of the upper mould cone of expression high-tension fuse.
Figure 13 is the upper mould cone of expression high-tension fuse and the cutaway view of cover.
Figure 14 is the cutaway view of the internal structure of expression high-tension fuse.
Symbol description
1 ... high-tension fuse, 10 ... the main body insulator, 11 ... upper chambers, 12 ... bottom compartment, 13 ... the upper end, 13a ... convex strip portions, 13b ... through hole, 14 ... lower ending opening section, 15 ... lower side, 15a ... convex strip portions, 15b ... through hole, 16 ... the insulation pleat, 17 ... the extinguishing arc cylinder, 18 ... adhesive, 20 ... upper electrode, 21 ... the upper mould cone, 21a ... slot part, 21b ... cylindrical portion, 21c ... covering section, 22 ... the upper external electric wire, 23 ... bolt, 24 ... pipe, 25 ... connecting piece, 25a ... patchhole, 25b ... internal thread part, 25c ... wide diameter portion, 26 ... nut, 27 ... the circle plain washer, 28 ... spring washer, 30 ... lower electrode, 31 ... the lower die cone, 31a ... slot part, 31b ... cylindrical portion, 32 ... the bottom external cable, 40 ... the fuse cylinder, 41 ... the top contact, 42 ... insulating cylinder, 43 ... trip bolt, 44 ... fuse, 45 ... electrical fuse element, 46 ... the fuse lead-in wire, 46a ... splicing ear, 47 ... the bottom contact, 47a ... contact site, 47b ... fixed part, 48 ... display barrel, 49 ... spring, 50 ... lower cover, 51 ... peristome, 5 ... close cover, 53 ... leaf spring.
Embodiment
Below, see figures.1.and.2 to illustrate an execution mode that the utility model is embodied as high-tension fuse.
As shown in Figure 1, cylindrical shape fuse 1 possesses the main body insulator 10 cylindraceous of porcelain system.Outer peripheral face at main body insulator 10 is formed with a plurality of insulation pleats 16.The lower end of main body insulator 10 is formed lower ending opening section 14 by opening.Be formed with columned upper chambers 11 and columned bottom compartment 12 in the inside of main body insulator 10, bottom compartment 12 is communicated with the bottom of upper chambers 11, and its internal diameter enlarges greatlyr than upper chambers 11.
Upper chambers 11 and bottom compartment 12 in the main body insulator 10 of cylindrical shape fuse 1 have been taken in fuse cylinder 40.Be provided with upper electrode 20 and lower electrode 30 at cylindrical shape fuse 1.Fuse cylinder 40 is connected connection with upper electrode 20 with lower electrode.Be provided with the insulating cylinder 42 that the top contact 41 of tubulose is fixed in the upper end of fuse cylinder 40.
In insulating cylinder 42, run through the bottom contact 47 that the contact site 47a with ring-type is installed.Be fixed with display barrel 48 in the lower end of insulating cylinder 42.Between bottom contact 47 and display barrel 48, be provided with spring 49.In insulating cylinder 42, between top contact 41 and bottom contact 47, be provided with fuse 44 by spring 49 stretchings.
The electrical fuse element 45 of fuse 44 and fuse lead-in wire 46 are cascaded.Cardinal extremity at fuse lead-in wire 46 is provided with splicing ear 46a.The fastened screw 43 of splicing ear 46a is fastened on the fixed part 47b that is arranged at bottom contact 47.The top contact 41 of fuse cylinder 40 and bottom contact 47 are by electrical fuse element 45 and 46 electrical connections of fuse lead-in wire.Electrical fuse element 45 fuses when one has the electric current of overrate to flow through at once.On fuse cylinder 40 around extinguishing arc cylinder 17 cylindraceous is installed.
Be formed with circular convex strip portions 13a in the upper end 13 of main body insulator 10.Be formed with the slot part 21a of round shape in the bottom of upper mould cone 21, the convex strip portions 13a of the upper end 13 of main body insulator 10 is installed in slot part 21a.The middle body of slot part 21a is made as cylindrical portion 21b as the lower end installation portion, the peripheral part of slot part 21a is made as the 21c of covering section.On the upper end 13 of main body insulator 10, by polymer adhesive conical upper mould cone 21 is arranged.Be connected with the upper external electric wire 22 of distribution line at upper mould cone 21.
In addition, the lower side 15 at main body insulator 10 is formed with circular convex strip portions 15a.Be formed with the slot part 31a of round shape at the base end part of lower die cone 31, the convex strip portions 15a of the lower side 15 of main body insulator 10 is installed in this slot part 31a.The middle body of slot part 31a is made as cylindrical portion 31b.Lower side 15 at main body insulator 10 is formed with through hole 15b.On the lower side 15 of main body insulator 10, by polymer adhesive conical lower die cone 31 is arranged.Be connected with bottom external cable 32 at lower die cone 31, bottom external cable 32 is connected with machines such as transformer on being arranged on distribution line.Upper mould cone 21 and lower die cone 31 are formed by insulating material such as having flexible rubber.
In lower ending opening section 14, be fixedly mounted with lower cover 50 cylindraceous by adhesive 18, this lower cover 50 covers the inwall of bottom compartment 12.Be equipped with in lower cover 50 and close cover 52, this closes cover 52 with peristome 51 cappings of lower cover 50.Closing a plurality of leaf springs 53 that cover 52 is fixed on the lower cover 50 remains on the lower cover 50.When having flowed into the electric current of overrate, electrical fuse element 45 fusing, fuse cylinder 40 is by the elastic force pressure of spring 49 lower ending opening section 14 side shiftings to main body insulator 10.Like this, display barrel 48 abuts to and closes on the cover 62, makes to close cover 62 from lower cover 50 disengagings, and display barrel 48 is outstanding from the lower ending opening section 14 of main body insulator 10.
Be embedded with columned connecting piece 25 in upper mould cone 21, this connecting piece 25 links upper external electric wire 22 and bolt 23.Be formed with patchhole 25a on the top of connecting piece 25, in patchhole 25a, insert the upper external electric wire.Upper external electric wire 22 is inserted among the patchhole 25a of connecting piece 25, with connecting piece 25 calkings, thereby upper external electric wire 22 is fixed on the connecting piece 25.Be formed with internal thread part 25b in the bottom of connecting piece 25.Internal thread part 25b exposes in the lower end of upper mould cone 21.
As shown in Figure 2, between connecting piece 25 and pipe 24, nut 26, circle plain washer 27, spring washer 28 have been loaded successively on the top of pipe 24.Bolt 23 by will manage 24, nut 26, circle plain washer 27, spring washer 28 run through on the internal thread part 25b that is screwed to connecting piece 25, thereby upper mould cone 21 is connected connection with upper electrode.Between connecting piece 25 and pipe 24, there are nut 26, circle plain washer 27, spring washer 28, thereby can suppress the excessive tightness of nut 26.Be formed with enlarged-diameter in the upper end of connecting piece 25 wide diameter portion 25c.Wide diameter portion 25c can suppress that upper external electric wire 22 abuts to the upper end of connecting piece 25 and applies centrality load when upper external electric wire 22 is crooked to the side.
In addition, the lower, outer perimeter face of connecting piece 25 has been implemented concavo-convex hatching knurling processing.Upper mould cone 21 is by under the state that has connected upper external electric wire 22 at connecting piece 25 forming the insulating material shaping, and the combination between upper external electric wire 22 and the connecting piece 25 is insulated material reinforced.
According to execution mode described above, can access following effect.
(1) because the upper end of connecting piece 25 is more larger towards upper end diameter, thus can suppress when upper external electric wire 22 during to the side bending upper external electric wire 22 abut to the upper end of connecting piece 25 and apply centrality load, can avoid bending.In addition, the lower, outer perimeter face of connecting piece 25 has been implemented the processing of concavo-convex hatching knurling, thus can reinforce and insulating material between combination.Therefore, can suppress peeling off between upper external electric wire 22 and the insulating material, can bore in upper mould and keep insulation in 21.In addition, can avoid 22 bendings of upper external electric wire, so can not break.
(2) owing to be provided with spring washer 28 in the lower end of connecting piece 25, so connecting piece 25 can be fixed, when peeling off upper external electric wire 22 from insulating material, can suppress to rotate.In addition, will justify plain washer 27 and be located between spring washer 28 and the nut 26, so when top external cable 22 is installed, suppress the excessive tightness of nut 26, when taking off upper external electric wire 22, it is loosening to suppress nut 26.
In addition, above-mentioned execution mode can suitably change to implement in the following manner.
In the above-described configuration, as shown in Figure 3, also can be set as the upper end of the convex strip portions 13a of the upper end 13 of main body insulator 10 higher than the upper end of connecting piece 25.Like this, when upper external electric wire 22 was crooked to the side, supported the upper end of the convex strip portions 13a of the upper end 13 of main body insulator 10, thereby can reduce the load that upper external electric wire 22 is applied.Therefore, can suppress peeling off between upper external electric wire 22 and the insulating material, can bore in upper mould and keep insulation in 21.
In the above-described configuration, as shown in Figure 3, also can substitute the spring washer 28 and the circle plain washer 27 that are arranged between connecting piece 25 and the nut 26, the elastomeric elements such as rubber are set.Like this, can suppress upper external electric wire 22 and rotate, can bore in upper mould and keep insulation in 21.
In the above-described configuration, it is more less towards main body insulator 10 side diameters to be installed in the lower end installation portion of upper mould cone 21 of upper end of main body insulator 10.That is to say, as shown in Figure 4, make the cylindrical portion 21b of upper mould cone 21 more less towards main body insulator 10 side diameters.The upper end 13 of main body insulator 10 forms turbination corresponding to the shape of the cylindrical portion 21b of upper mould cone 21.Like this, when upper mould cone 21 is installed to main body insulator 10, can connect airtight by pressing.Therefore, can bore in upper mould and keep insulation in 21.
In the above-described configuration, also can bore 21 lower end edge portion in upper mould and form flange part.That is to say that as shown in Figure 4, the 21c of covering section that makes upper mould cone 21 overflows to the side and forms flange part 21d.The flange part 21d of upper mould cone 21 abuts on the edge of upper end 13 of main body insulator 10.Like this, when upper mould cone 21 has been applied external force to the side, can keep flange part 21d to the butt of the edge of the upper end 13 of main body insulator 10.
And, when the lower end edge portion of upper mould cone 21 has formed flange part 21d, also can form stage portion with the part that flange part 21d contacts in upper mould 21 the upper angled section of boring.That is to say, as shown in Figure 4, when the flange part 21d of upper mould cone 21 is installed on the main body insulator 10 and is pressed, form stage portion 21e at flange part 21d.Like this, when being installed to upper mould cone 21 on the main body insulator 10, change by the angle of observing stage portion 21e, can be by the increase and decrease of Visual Confirmation to power.
In the above-described configuration, also can bore in upper mould 21 lower end formation fitting portion, form by fitting portion in the upper end of main body insulator 10.That is to say, as shown in Figure 5, formed recess 61 in the lower end of upper mould cone 21, formed protuberance 62 in the upper end of main body insulator 10.In addition, though not shown, also can bore 21 lower end in upper mould and form protuberance, form recess in the upper end of main body insulator 10.Like this, when being installed in upper mould cone 21 on the main body insulator 10, can make recess and protuberance chimeric and connect airtight.Therefore, can bore in upper mould and keep insulation in 21.
In the above-described configuration, also can form jog at the outer peripheral face that upper mould is bored 21 lower end installation portion.That is to say, as shown in Figure 5, form jog 63 at the outer peripheral face of the cylindrical portion 21b of upper mould cone 21, protuberance is fitted on the main body insulator 10 and connects airtight.Like this, when being installed to upper mould cone 21 on the main body insulator 10, the protuberance of jog 63 can being fitted on the upper end 13 of main body insulator 10 and connecting airtight.In addition, can also seal member be set at recess.Like this, when being installed to upper mould cone 21 on the main body insulator 10, can pass through the seal member of the recess of jog 63, the chimeric upper end 13 that is fitted into main body insulator 10.Therefore, can bore in upper mould and keep insulation in 21.
In the above-described configuration, it is more less towards point diameter also upper mould can be bored the leading section of connecting piece 25 sides of coating member of the upper external electric wire 22 in 21.That is to say, as shown in Figure 6, make the leading section of connecting piece 25 sides of coating member 64 of the upper external electric wire 22 in the upper mould cone 21 more towards point diameter less (angle [alpha]).Like this, when upper external electric wire 22 is crooked to the side, can suppresses upper external electric wire 22 and insulating material and near the front end of upper external electric wire 22, peel off.Therefore, can bore in upper mould and keep insulation in 21.
In the above-described configuration, also can utilize front end and the connecting portion between the upper external electric wire 22 strengthening covering upper mould cone 21 to cover.That is to say, as shown in Figure 7, also can install and to bore the reinforcement lid 65 of the upper part integrated covering of the 21 upper external electric wires 22 that expose and upper mould cone 21 from upper mould.Like this, even upper external electric wire 22 has been applied external force, also can suppress bending.Therefore, can suppress peeling off between upper external electric wire 22 and the insulating material, can bore in upper mould and keep insulation in 21.
In the above-described configuration, also can form a plurality of grooves or raised line at upper mould 21 the upper periphery face of boring.For example, as shown in Figure 8, also can form a plurality of grooves or the raised line 66 that prolong in the axial direction.Like this, even upper external electric wire 22 has been applied external force, also can suppress bending.Therefore, can suppress peeling off between upper external electric wire 22 and the insulating material, can bore in upper mould and keep insulation in 21.
In the above-described configuration, as shown in Figure 9, also can install upper mould cone 21 retaining elements that are fixed 70 at main body insulator 10.Retaining element 70 possesses: upper handle section 71, the top of upper mould cone 21 is controlled; Bottom handle portion 72 is controlled the pars intermedia of main body insulator 10; And carriage handle portion 73, the carriage 68 that is fixed on the electric pole is controlled.Like this, part 70 is fixing because upper mould cone 21 is fixed, so can suppress the top bending of upper mould cone 21.Therefore, can suppress peeling off between upper external electric wire 22 and the insulating material, can bore in upper mould and keep insulation in 21.
In the above-described configuration, as shown in figure 10, also can bore 21 outer peripheral face in upper mould and form the insulation cap 76 that the top with main body insulator 10 covers.Insulation cap 76 possesses: the side is prolonged and section 77, extends to the side from the all-round of outer peripheral face of upper mould cone 21; And the below prolongs and section 78, prolongs with the side that section 77 continuous, extends downwards from the position greater than the external diameter of main body insulator 10.Insulation cap 76 be lower opening end pipe arranged.Like this, because the top of main body insulator 10 is covered, so can suppress tracking (tracking).
In the above-described configuration, as shown in figure 11, at the erecting tools 80 that main body insulator 10 is supported on the carriage 68 salt tolerant insulator 81 is installed., possess and suppress the stained salt tolerant ware 82 of outer surface that salt tolerant is used insulator 81 with on the insulator 81 at salt tolerant.Like this, can improve insulating properties in the area that is subject to salinity infringement.
In the above-described configuration, also can be at bottom fill insulant or the resin material of the patchhole 25a of connecting piece 25.For example, shown in Figure 12 (a), before inserting upper external electric wire 22, resin material 85 is filled among the patchhole 25a, then inserts upper external electric wire 22 and calking.Then, adopt insulating material 85 to carry out die forming, thereby form upper mould cone 21.In addition, shown in Figure 12 (b), form the through hole 25d that bottom and the two sides of patchhole 25a are run through in the side of connecting piece 25, upper external electric wire 22 is inserted among the patchhole 25a of connecting piece 25 and carries out after the calking potting resin material 85.Then, by carrying out the die forming based on insulating material 85, bore 22 thereby form upper mould.In addition, shown in Figure 12 (c), at the through hole 25e of the side of connecting piece 25 formation with the bottom perforation of patchhole 25a, upper external electric wire 22 is inserted among the patchhole 25a of connecting piece 25 and carries out after the calking, adopt insulating material 85 to carry out die forming, thereby in the patchhole 25a of connecting piece 25, in the fill insulant 85, form upper mould cone 22.Like this, bottom fill insulant 85 or the resin material of the patchhole 25a that needs only at connecting piece 25 can suppress to cause hydropexis from upper external electric wire 22 encroached waters.Thus, because can occluded water, cause connecting piece 25 breakages so can prevent the volumetric expansion when freezing.Therefore, can bore in upper mould and keep insulation in 22.
In the above-described configuration, as shown in figure 13, also can bore 21 top in upper mould the insulating lid 86 that the top with main body insulator 10 covers is installed.Insulating lid 86 is installed in the upper periphery face of upper mould cone 21, possesses: with the taper cap 87 of upper mould cone 21 coverings; With the insulator cap 88 that the top of main body insulator 10 is covered.Insulating lid 86 be lower opening end pipe arranged.Connecting portion between insulating lid 86 and upper external electric wire 22 is wound with belt 89.Like this, because the top of main body insulator 10 is covered, so can suppress tracking.
In the above-described configuration, as shown in figure 14, main body insulator 10 is porcelain system, yet the inner barrel 91 that also can utilize the insulating material by hard such as FRP to consist of forms inwall, utilizes the outer cylinder body 92 that is made of soft insulating material such as silicon rubber to form the outside of inner barrel 91.At this moment, upper mould cone 21, lower die cone 31 are formed by silicon rubber.
Claims (11)
1. a high-tension fuse is bored with upper mould, be used to high-tension fuse, this high-tension fuse has main body insulator cylindraceous, the fixing upper external electric wire on the top of main body insulator, and at the fixing bottom external cable of lower side, described high-tension fuse is connected described upper external electric wire with the upper mould cone with upper electrode, it is characterized in that
Have connecting piece cylindraceous, by inserting described upper external electric wire on the top of this connecting piece and carry out calking, thereby this connecting piece is connected with described upper external electric wire, and screws togather the bolt that is installed on the described upper electrode in the bottom of connector,
The upper end of described connecting piece is more larger towards upper end diameter,
Lower, outer perimeter face at described connecting piece is formed with concavo-convex.
2. high-tension fuse according to claim 1 is bored with upper mould, it is characterized in that,
Described connecting piece is fitted in the recess of the upper end that is formed at described main body insulator,
The upper end of described connecting piece is configured to lower than the upper end of described main body insulator.
3. high-tension fuse according to claim 1 is bored with upper mould, it is characterized in that,
Lower end installation portion with the upper end that is installed in described main body insulator, this lower end installation portion are more less towards described main body insulator side diameter.
4. high-tension fuse according to claim 1 is bored with upper mould, it is characterized in that,
Lower end edge portion at described upper mould cone is formed with flange part,
Upper angled section at described upper mould cone is formed with stage portion with the part that described flange part contacts.
5. high-tension fuse according to claim 1 is bored with upper mould, it is characterized in that,
Lower end installation portion with the upper end that is installed in described main body insulator is formed with the fitting portion chimeric with the upper end of described main body insulator at this lower end installation portion.
6. high-tension fuse according to claim 1 is bored with upper mould, it is characterized in that,
Lower end installation portion with the upper end that is installed in described main body insulator is formed with jog at the outer peripheral face of this lower end installation portion.
7. high-tension fuse according to claim 1 is bored with upper mould, it is characterized in that,
Have the coating member that covers on the described upper external electric wire, the leading section of this coating member is more less towards point diameter.
8. high-tension fuse according to claim 1 is bored with upper mould, it is characterized in that,
Comprise also and strengthen lid that this front end and connecting portion between the described upper external electric wire of strengthening covering described upper mould cone covers.
9. high-tension fuse according to claim 1 is bored with upper mould, it is characterized in that,
Upper periphery face at described upper mould cone is formed with a plurality of grooves or raised line.
10. high-tension fuse according to claim 1 is bored with upper mould, it is characterized in that,
Be filled with insulating material or resin material inserting in the hole of the described upper external electric wire of being inserted into of described connecting piece.
11. high-tension fuse according to claim 1 is bored with upper mould, it is characterized in that,
Be formed with the insulation pleat that the top with described main body insulator covers at the outer peripheral face of described upper mould cone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220352867 CN202772091U (en) | 2012-07-11 | 2012-07-11 | Upper die cone for high voltage fuse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220352867 CN202772091U (en) | 2012-07-11 | 2012-07-11 | Upper die cone for high voltage fuse |
Publications (1)
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| CN202772091U true CN202772091U (en) | 2013-03-06 |
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| CN 201220352867 Expired - Fee Related CN202772091U (en) | 2012-07-11 | 2012-07-11 | Upper die cone for high voltage fuse |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103700550A (en) * | 2013-12-10 | 2014-04-02 | 杭州国电电气设备有限公司 | Outdoor all-insulated jet fuse protector |
| CN111430185A (en) * | 2019-01-09 | 2020-07-17 | 厦门台松精密电子有限公司 | Relay structure with heat dissipation function |
-
2012
- 2012-07-11 CN CN 201220352867 patent/CN202772091U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103700550A (en) * | 2013-12-10 | 2014-04-02 | 杭州国电电气设备有限公司 | Outdoor all-insulated jet fuse protector |
| CN111430185A (en) * | 2019-01-09 | 2020-07-17 | 厦门台松精密电子有限公司 | Relay structure with heat dissipation function |
| CN111430185B (en) * | 2019-01-09 | 2022-06-17 | 厦门台松精密电子有限公司 | Relay structure with heat dissipation function |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130306 Termination date: 20150711 |
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| EXPY | Termination of patent right or utility model |