CN2586245Y

CN2586245Y - Line protector with fail indication

Info

Publication number: CN2586245Y
Application number: CN 02281465
Authority: CN
Inventors: 谭洪奎; 贾洪鸣; 关守平
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-11-29
Filing date: 2002-11-29
Publication date: 2003-11-12
Anticipated expiration: 2012-11-29

Abstract

The utility model relates to a line protector with fail indication, which comprises a casing, a fuse and a connecting device, wherein, the casing is composed of a base and a turning cover; the connecting device comprises a fixing piece and two plug-in seats which are respectively fixed on both side ends of the base of the casing and are respectively extended to the outside of the casing to provide connecting plates. The fixing piece is fixed on the turning cover of the casing. Two connecting sheets on the fuse are clamped on the fixing piece. The utility model is characterized in that an impinger, a micro switch, and a failure indicating lamp are also arranged on the turning cover of the casing. A zero terminal is arranged on the casing. A needle pellet on the front end of the impinger is positioned nearby the outside of the micro switch. After the micro switch is connected in series with the failure indicating lamp, one end of the micro switch and the front part of the impinger are connected in parallel on a copper guide valve on the fuse, and the other end is electrically connected with the zero terminal on the casing. The rear part of the impinger is electrically connected with another copper guide valve of the fuse. When lines generate failure, the utility model can send out signals by the failure indicating lamp. Thus, failure can be quickly eliminated.

Description

The line protector of tape jam indication

(1) technical field

The utility model relates to a kind of line protector, particularly relates to a kind of line protector that is applicable to the tape jam indication of low voltage electric network.

(2) technical background

Along with the carrying out of the unprecedented upgrading urban and rural power grids engineering of scale, the assuming an entirely new aspect of town and country power supply grid, the power supply quality of electrical network, grid loss have had tangible improvement.But, present stage low voltage electric network the transformation update of mainly concentrating equipment such as online, bar, table and transformer, for the fault protection aspect automatically of low voltage electric network, shortcoming relatively then.Low voltage electric network improves the demand of the automatic protection class under the failure rate situation, is mainly reflected in two aspects: the one, and the requirement that improves resident's power supply quality.Raising along with living standards of the people, popularizing rapidly of household appliances, the user is more and more higher to the requirement of power supply quality, circuit is protection device for installing not, the point failure in the platform district then, will cause the power outage in whole district, impact for user's production and life, serious user's the electric equipment of may giving causes damage; The 2nd, the needs of low voltage electric network itself.After electric network reconstruction is finished, original plain conductor will be substituted by insulated conductor.If the platform district is protection device for installing not, then the Short-Circuit High Current of platform district electrical network just may cause the destruction of whole district's insulated conductor, causes tremendous loss to power supply department.The protection device product that is applied to electrical network at present is a lot; but; the protection of low voltage electric network, be different from the protection of the above electrical network of 10KV; can not use high especially, the expensive protective device of automaticity; as automatic circuit, circuit breaker etc., and need simple and practical, low voltage electric network outside wire line protection device cheaply.At present, the protection product of domestic shortage 0.4KV low voltage electric network grade, and external product price is too high, is not suitable for low voltage electric network and uses on a large scale.For this reason, I once developed a kind of low voltage electric network circuit outdoor protection device, and had applied for patent; the patent No. is 00252568.2, and this protector structure is simple, and cost is low, change conveniently; its weak point is when circuit is short-circuited fault, and fault-free shows, brought inconvenience to maintenance.

(3) summary of the invention

In order to solve the problem that above-mentioned prior art exists, the utility model provides a kind of line protector of tape jam indication.

The technical solution adopted in the utility model is:

The line protector of tape jam indication comprises housing, fuse and jockey.Housing is by pedestal and renovate an end of forming, renovating and be coupling on pedestal, and its other end can latch on the pedestal, and jockey comprises fixture and two plug sockets.Two plug sockets are separately fixed at two side ends of housing pedestal, and are provided with terminal block to the housing extension respectively, and fixture is fixed on renovating of housing, and two braces on the fuse are fastened on the fixture, and can open and fasten with renovating.Its technical essential is also to be equiped with a striker, a sensitive switch and a malfunction indicator lamp renovating of housing.Be installed with a zero terminal on the housing, the needle pellet of striker front end is positioned near the sensitive switch place, sensitive switch is with after malfunction indicator lamp is connected in series, the one end is attempted by on the copper guide brake of fuse with the front portion of striker, its other end is connected with zero terminal on the housing, and the rear portion of striker is electrically connected with another copper guide brake of fuse.

The utility model compared with prior art; because the sensitive switch that in the housing of protector, has installed striker, indicator light additional and matched with striker; therefore when circuit broke down, the needle pellet of striker front portion ejected, and touched sensitive switch; make malfunction indicator lamp send signal (red light is bright); like this, the maintainer is easy to the localization of faults when the maintenance circuit; and then can change fuse in the striker when changing safety plate in the fuse, thereby fix a breakdown rapidly.

(4) description of drawings

Fig. 1 is the perspective view of a kind of embodiment of the utility model.

Fig. 2 is the schematic perspective view of the utility model fuse.

Fig. 3 is the front view that the utility model is renovated.

Fig. 4 is the structural representation of the utility model striker.

Fig. 5 is the electrical schematic diagram that the utility model fault shows.

(5) embodiment

As shown in Figure 1; the line protector of tape jam indication; comprise housing 1; fuse 2 and jockey; housing 1 is by pedestal 3 and renovate 4 and form; renovating an end of 4 is coupling on pedestal 3; its other end convexes with a lock dog 5; this lock dog 5 matches with draw-in groove on the pedestal 3 upper end inwalls; can latch on the pedestal 3 renovating 4; renovate and be fixed with one handle 6 on 4; jockey comprises a fixture and two plug sockets 8; fixture is made of conducting strip 9 and 10; conducting strip 9 is provided with a square socket 11, and conducting strip 10 is provided with a T shape socket 13 and two strips are adjusted hole 14, and conducting strip 9 is being renovated on 4 by screw; conducting strip 10 is adjusted screws in hole 14 and is positioned at and renovates on 4 by passing it; and a back-moving spring 15 is housed on the conducting strip 10, and conducting strip 10 can be adjusted along the adjustment hole 14 on it, and can reset by back-moving spring 15.Two insert-connecting plates 16 on the fuse 2 can insert respectively in the square socket 11 and T shape socket 13 on conducting strip 9 and the conducting strip 10, and can after resetting, conducting strip 10 be locked, make fuse 2 open and to fasten with renovating 4, two plug sockets 8 are respectively by on the bottom surface of screw in pedestal 3, and be outward extended with a terminal block 17 respectively, renovate 4 be fastened on the pedestal 3 after, lead lock 27 and be plugged on just on two plug sockets 8 for two of fuse 2.Its main points are renovating of housing 1 striker 18 to be installed also on 4, one sensitive switch 19 and a malfunction indicator lamp 20, wherein, striker 18 is plugged on two and is fixed on the slotting frame of renovating on 4 21 and 22, sensitive switch 19 is fixed on to renovate and is positioned on 4 near striker 18 front end face needle pellets 12 places, and with needle pellet distance at interval suitably, sensitive switch 19 is with after malfunction indicator lamp 20 is connected in series, the one end is connected with conducting strip 9, its other end be fixed on a conducting strip 23 of renovating on 4 and be connected, conducting strip 9 is connected with slotting frame 21 by lead, and conducting strip 10 is connected with slotting frame 22 by lead.On pedestal 3, be fixed with one with renovate conducting strip 23 corresponding conducting strips 24 on 4, fix a binding post 25 on the pedestal 3 at conducting strip 24 places, conducting strip 24 is connected with zero line by binding post 25.Conducting strip 23 and conducting strip 24 touch when fastening with pedestal 3 just renovating 4.

As shown in Figure 2, when circuit normally moves, because striker 18 is a high resistance, and striker 18 is in parallel with fuse 2, have only very little electric current to flow through fuse 7 in the striker 18, therefore can be with 7 fusing of the fuse in the striker 18, the needle pellet 12 of striker 18 Inner Front End portions can not eject in striker 18 under the pulling of spring 26, and malfunction indicator lamp 20 does not work.

When circuit breaks down, fuse-link fusing in the fuse 2, electric current can only flow through from striker 18, the fuse 7 in the striker 18 is blown, at this moment, because spring 26 resets, the needle pellet 12 of striker 18 front ends is ejected, and impinge upon on the sensitive switch 19, make sensitive switch 19 closures, malfunction indicator lamp 20 energized, malfunction indicator lamp is bright.

Claims

1; the line protector of tape jam indication; comprise housing (1); fuse (2) and jockey; housing (1) is by pedestal (3) and renovate (4) and form; an end of renovating (4) is coupling on pedestal (3); its other end can latch on the pedestal (3); jockey comprises fixture and two plug sockets (8); two plug sockets (8) are separately fixed at housing (1); two side ends of pedestal (3); and be provided with terminal block to housing (1) extension respectively; fixture is fixed on renovating on (4) of housing (1); two braces on the fuse (2) are fastened on the fixture; and can open and fasten with renovating (4); it is characterized in that: also be equiped with a striker (18) on (4) renovating of housing (1); one sensitive switch (19) and a malfunction indicator lamp (20); housing is equiped with zero terminal on (1); the needle pellet (12) of striker (18) front end is positioned near sensitive switch (19) to be located; sensitive switch (19) is with after malfunction indicator lamp (20) is connected in series; the one end is attempted by on the copper guide brake (27) of fuse (2) with the front portion of striker (18); its other end is gone up the binding post (25) that is connected with zero line with housing (1) and is electrically connected, and the rear portion of striker (18) is electrically connected with another copper guide brake (27) of fuse (2).