CN2047846U - Wire holder with fuse and fusing display - Google Patents

Abstract

The utility model discloses a wire holder with a fuse and a fusing display. The wire holder belongs to an electric protective device. A fuse and a wire holder are organically combined. The 'on' or 'off' working condition of a fuse-link can be displayed. The wire holder can be matched with the standard trackway of an existing control screen and a cabinet. The wire holder mainly comprises an insulating junction holder (1), electric conduction clamping holders (15, 30), mark word plates (16, 29), horizontal installing grooves (21, 24), a high-low type installing groove (23), a fuse-link (11), a plug of fuse (4), an indicating lamp DX (9) and a resistor R (10). The utility model has the advantages of compact structure and convenient replacement. The insulating junction holder (1) and the plug of fuse (4) are made of polycarbonates alloy material, and the mechanical strength and the grade of pressurization are high.

Description

Wire holder with fuse and fusing display

The utility model relates to a kind of essential electronic element, further is meant a kind of with fuse and can show the protective device of melt operating mode.

The fuse of all size of present domestic electric component manufacturer production, the user generally also will have other junction block to match in use, thereby increased the trouble of installation wiring and influenced attractive in appearance, and the function of general fuse is also single, no melt working condition shows, so that make that the replacing inconvenience of this easily-consumed products of fuse-link is untimely,, use and do not want to take the trouble and inconvenient though individual product also has band fusing indication.

The purpose of this utility model provides a kind of protective device that fuse and junction block are combined, and makes it can clearly illustrate the working condition of melt, and can match with the standard attachment rail of existing control flow, cabinet when installing and using.

This new arrangement seat designs like this.On an insulating end seat, fix two conductive holders made from metal, bus inlet wire post and bus outlet column are housed, with the usefulness of connection bus that fixes on two conductive holders respectively into and out of line.The top of conductive holder opening, the fuse plug of an insulation is housed, the standard-sized fuse-link of changing can be taken out after damage is housed in the fuse plug bottom, indicator light and resistance are equipped with in fuse plug top, and the circuit after indicator light and resistance are in series is in parallel with the fuse-link two ends again.When working condition, the fuse-link two ends in the fuse plug are inserted in respectively in the whippy intermediate plate of two conductive holders in the insulating end seat.The upper bend of two intermediate plates of conductive holder becomes and the suitable arcuation in the face of cylinder, fuse-link end, be inserted in two intermediate plates in the fuse-link end closely electrically contact mutually.During this junction block place in circuit operate as normal, operating current is exported to the bus outlet column through conductive holder, fuse-link and another conductive holder from the input of bus inlet wire post.Because fuse-link resistance is minimum, in fact be equivalent to branch, short-circuit that indicator light is connected with resistance, so indicator light does not work; And when bus circuit overload or short circuit occur and makes operating current surpass the rated current of fuse-link, fuse-link fusing, the circuit that this moment, indicator light and resistance were in series is no longer by short circuit, but because the resistance of resistance is bigger, event has only less current to flow through indicator light and makes it shinny, the observer is by the bright of viewing lamp or go out, and just can judge the disconnected or logical of fuse-link.When changing fuse-link, only with hand refers to pinch the fuse plug top firmly upwards to be carried, and just fuse-link can be extracted from conductive holder and whole fuse plug and insulating end seat are separated.By a side of bus inlet wire post and bus outlet column, the marking-up board is housed respectively also on the insulating end seat, can indicates the identification literal or the numbering of turnover bus, make the utility model obviously have the characteristic of junction block for the user.In insulating end seat bottom, has the horizontal mounting groove that two sizes are closed the symbol standard, so that the utility model energy location and installation is on the horizontal attachment rail (being commonly referred to " flush plate ") of standard.Insulating end seat bottom also has a standard compliant high-low type mounting groove of size, with above-mentioned two horizontal mounting grooves in one combine, make the utility model location and installation on high-low type attachment rail (being commonly referred to " height frid ").The high-low type mounting groove also can adopt high and low position different two and not shared another horizontal mounting groove.

Therefore the utility model organically combines fuse and junction block, the relatively aggregate erection of discrete component, and the compact conformation that seems is installed wiring simultaneously simply with easy to maintenance.The setting of melt operating mode display part brings convenience not only for the replacing of fuse-link easily-consumed products, and is convenient to the debugging of complete sets of products and to the check of fuse-link quality.The insulating end seat of the utility model junction block and fuse plug adopt the injection mo(u)lding of domestic new material polycarbonate alloy, can make shades of colour, satisfy the requirement of complete set of equipments, simultaneously on the mechanical strength of product and degree of protection such as withstand voltage, also improved a step the circuit colour.

Below in conjunction with drawings and Examples the utility model is described in detail.

Fig. 1 is the front view of a kind of concrete structure of the utility model;

Fig. 2 is the A-A cutaway view of Fig. 1;

Fig. 3 is the utility model electrical schematic diagram.

The Reference numeral of Fig. 1 to Fig. 3 is: 1, and the insulating end seat; 2, electroconductive elastic sheet; 3, left positioning boss; 4, fuse plug; 5, following positioning boss; 6, following fixed chuck; 7, last fixed chuck; 8, transparent box cover; 9, indicator light DX; 10, resistance R; 11, fuse-link; 12, following positioning boss; 13, right positioning boss; 14, electroconductive elastic sheet; 15, conductive holder; 16, the marking-up board; 17, the bus outlet column; 18, fixed head; 19, insulating end seat positioning boss; 20, fixed screw; 21, the horizontal mounting groove; 22, the high-low type attachment rail; 23, the high-low type mounting groove; 24, the horizontal mounting groove; 25, fixed screw; 26, insulating end seat positioning boss; 27, fixed head; 28, bus inlet wire post; 29, the marking-up board; 30, conductive holder; 31, insulating end seat location hole; 32, the bus inlet wire; 33, the bus outlet.

By Fig. 1 and Fig. 2 as can be known, box-like is made on the top of fuse plug (4), indicator light DX(9) and resistance R (10) be loaded in the box, the box top has transparent box cover (8) as viewing lamp DX(9) window, indicator light DX(9) end that is not in series with resistance R (10), be connected to electroconductive elastic sheet (2) and (14) passed at the bottom of the box respectively, an end of shell fragment (2) and (14) stretches to the bottom of fuse plug (4)." mouth " word shaped as frame is made in the bottom of fuse plug (4), frame mouth middle part has and last fixed chuck (7) that fuses at the bottom of the upper box and the following fixed chuck (6) that fuses with the bottom moulding, the folder face that chuck (6) is relative with chuck (7) is the suitable curve form in the face of cylinder with fuse-link (11), accompany fuse-link (11) between two chucks, electroconductive elastic sheet (2) and (14) lower end become elasticity to electrically contact with fuse-link (11) two ends respectively.Fuse plug is good springiness owing to adopt Merlon, so when installing and taking off fuse-link (11), as long as the application of force just can be with the downward elastic bending of fuse plug (4) bottom moulding slightly, make the chuck (6) and the distance of chuck (7) draw back, to allow the turnover of fuse-link (11), after having operated, the bottom moulding restores to the original state again, and chuck (6) and (7) are firmly clamped fuse-link (11).Conductive holder (15) and (30) installing and fixing on insulating end seat (1), be that base with conductive holder (15) and (30) is flattened on respectively on the table top of insulating end seat (1), also go up simultaneously fixed head (18) and (27) that lay respectively at conductive holder (15) and (30) below are set at insulating end seat (1), adopt fixed screw (20) and bus outlet column (17) to be connected mutually between conductive holder (15) and the fixed head (18), adopt fixed screw (25) and bus inlet wire post (28) to be connected mutually between conductive holder (30) and the fixed head (27).Two the following positioning boss (5) that have on the insulating end seat (1) and two following positioning boss (12) make at the bottom of the upper box of fuse plug (4) placed on itly, rise when plug (4) inserts and stop position-limiting action.Left positioning boss (3) that has on the insulating end seat (1) and right positioning boss (13) then are to be used for fuse plug (4) horizontal direction spacing in insulating end seat (1).The front end of insulating end seat (1) two bottom sides has insulating end seat positioning boss (19) and (26) respectively, the rear end has respectively and boss (19,26) the insulating end seat location hole (31) of concentric and shape size phase fit, so just can make several the utility model junction blocks rely on positioning boss (19,26) install in orbit side by side with the grafting fit of location hole (31), the chain-dotted line of junction block right part shows an adjacent junction block of installing side by side among Fig. 2.Shown in the chain-dotted line among Fig. 1 is high-low type attachment rail (22), and junction block has utilized high-low type mounting groove (23) to match with a horizontal mounting groove (21) and has been contained on the track (22).For the horizontal attachment rail, but obviously usage level formula mounting groove (21) and (24) installation.

Claims (6)

1, a kind of junction block with fuse and fusing demonstration is characterized in that:

A) on insulating end seat (1), have conductive holder (30,15), bus inlet wire post (28) and bus outlet column (17) are housed respectively on two conductive holders (30,15);

B) conductive holder (30,15) top of opening, a fuse plug (4) is housed, standard-sized fuse-link (11) is equipped with in the bottom of fuse plug (4), indicator light DX (9) and resistance R (10) are equipped with in top, circuit after indicator light DX (9) is in series with resistance R (10) is in parallel with fuse-link (11) two ends again, conductive holder (30, the upper bend of two intermediate plates 15) becomes and the suitable arcuation in fuse-link (11) face of cylinder, end, and fuse-link (11) two ends are inserted in respectively in the whippy intermediate plate of conductive holder (30) and (15);

C) go up a side of leaning on bus inlet wire post (28) and bus outlet column (17) at insulating end seat (1), marking-up board (29) and (16) are housed respectively;

D) in insulating end seat (1) bottom, have horizontal mounting groove (21) and (24), also have high-low type mounting groove (23).

2, junction block as claimed in claim 1, the base that it is characterized in that described conductive holder (15) and (30) is flattened on respectively on the table top of insulating end seat (1), also go up simultaneously fixed head (18) and (27) that lay respectively at conductive holder (15) and (30) below are set at insulating end seat (1), adopt fixed screw (20) and bus outlet column (17) to be connected mutually between conductive holder (15) and the fixed head, adopt fixed screw (25) and bus inlet wire post (28) to be connected mutually between conductive holder (30) and the fixed head (27).

3, as claim 1,2 described junction blocks, it is characterized in that, box-like is made on the top of described fuse plug (4), indicator light DX(9) and resistance R (10) be loaded in the box, the box top has transparent box cover (8), indicator light DX(9) end that is not in series with resistance R (10), be connected to electroconductive elastic sheet (2) and (14) passed at the bottom of the box respectively, one end of shell fragment (2) and (14) stretches to the bottom of fuse plug (4), " mouth " word shaped as frame is made in the bottom of fuse plug (4), the middle part has and last fixed chuck (7) that fuses at the bottom of the upper box and the following fixed chuck (6) that fuses with the bottom moulding in the frame mouth, the folder face that chuck (6) is relative with chuck (7) is made the suitable curve form in the face of cylinder with described fuse-link (11), two chucks (6,7) accompany fuse-link (11) between, electroconductive elastic sheet (2) and (14) lower end become elasticity to electrically contact with fuse-link (11) two ends respectively.

4, junction block as claimed in claim 1, it is characterized in that, have following positioning boss (5,12), left positioning boss (3), right positioning boss (13), insulating end seat positioning boss (19,26) and insulating end seat location hole (31) on the described insulating end seat (1).

5, junction block as claimed in claim 1 is characterized in that described insulating end seat (1) and fuse plug (4) adopt the polycarbonate alloy material injection molded.

6, junction block as claimed in claim 1 is characterized in that, the high-low type mounting groove also can adopt high and low position different two and not shared another horizontal mounting groove.

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