CN87215783U - Fuse and interrupter group - Google Patents

Abstract

The utility model discloses a fuse and interrupter group which is the circuit protection device of the structural style of a plug and a socket. A flange body is arranged in the casing of the plug. Fusing pipes, a conducting ring, an electric conduction sliding ring, the plug, a contact head and a rotary shaft which are arranged along the periphery, and the C type conducting strip of an elastic contact head which is arranged on the rotary shaft and can rotate following the shaft are fixed on the flange body. One end of the elastic grip head of the rotary shaft is rotated to be contacted with the contact head connected with one end of different fusing pipes. The fusing pipes with different rated currents are connected in the circuit or the fusing pipes are replaced. The fuse and interrupter group has the isolating circuit function and the fusing protecting function. The capacity of the fusing pipe can be transformed and selected according to the capacity of electric equipment.

Description

Fuse and interrupter group

The utility model belongs to a kind of protective device that prevents that circuit overloads and short circuit from also can disconnect circuit.

In exchanging, use at present fusible link, fuse tube usually and have the disconnecting link switch of fuse protection effect to 50HZ, 250V and the circuit below the direct current 400V, as preventing circuit overloads and short circuit, and the protective device that circuit is disconnected.The capacity fuse of existing all size and model is fixed, has only a rated current, can not change with the volume change of power consumption equipment, the capacity fuse of upper level (way circuit) is less than normal in case capacity fuse at the corresponding levels is big, the fusing of will bypassing the immediate leadership makes the way circuit outage, and the normal operation of other power consumption equipments is affected; Next changes cumbersome, needs long period and down circuitry, makes troubles to use.The disconnecting link switch sword lock that has fuse protection is exposed, and the utmost point is incomplete, easily causes the electric shock casualty accident.

The purpose of this utility model provides a kind of easy to use, safe, and capacity fuse can be selected according to power consumption equipment capacity, can prevent that circuit overloads and short circuit also can be with the isolator fuse groups of down circuitry.

Isolator fuse group is plug, socket form.Plug construction is that flange body (6) is fixed in the housing (25), conducting ring (23), conducting slip ring (24) are fixed on the flange body upper disk surface, fuse tube (8) along flange body card circumference uniform distribution below flange body, fuse tube is fixed on the flange body by elastic clip (7), fuse tube input elastic clip is connected with contact (5) on the flange body upper disk surface, and the output elastic clip is connected with conducting ring.Conducting ring is connected with output plug (10) on being fixed on flange body, and input plug (27) is fixed on the flange body and with conducting slip ring and is connected.Elastomeric joint (4) is loaded on rotation axis (2) with secondary spring contact (3), rotation axis is positioned at the flange body center and connects for rotating with flange body, spring contact is made spring contact one end and the tight sliding contact of conducting ring by secondary spring contact reinforcing, the other end closely contacts with contact (5), rotate at the spring contact blue body disc face of winding center under rotation axis drives, be fixed with C type conducting strip (31) under the flange body on the card, C type conducting strip one end is connected with input plug (29) on being fixed on flange body, and the other end is connected with output plug (30) on being fixed on flange body.

For avoiding live components exposed, plug casing has base plate (9) with the sealing of housing cavity, and live components is isolated from the outside.

According to instructions for use, can have same rated current along the fuse tube of flange body card circumference uniform distribution, also fuse tube can be divided into two above fuse tube groups, every group has same rated current; Perhaps the rated current of all fuse tubes has nothing in common with each other.Usually, preferably be divided into some fuse tube groups with different rated current, can select the fuse of respective volume so on the one hand according to the variation of power consumption equipment capacity, on the other hand when a fuse blows, the turn rotation axis can be changed the automatic place in circuit of standby fuse tube with the fuse tube of fusing.

To select in order using and to replace fuse tube, the plug casing outside wall surface is marked with numeral, and each numeral is corresponding with the interior fuse tube of plug.Rotation axis stretches out the outer end of housing and is fixed with knob (7).

Socket is by housing (19), base plate (18) and solid in the socket elastic clip (15) on base plate, (32), (33) (34) formation.Housing connects by securing member with base plate, forms jack cavities live components is isolated from the outside, and the resilient socket folder is connected with termination.

Use isolator fuse group as circuit protection device; " 0 " line of power line is connected on socket and the termination that resilient socket folder (33) is connected; " fire " line of power line is connected on the termination that is connected with resilient socket folder (32); the power consumption equipment power line is connected on the termination that is connected with resilient socket folder (15), and " 0 " line is connected on the termination that is connected with resilient socket folder (34).Do not adorn fuse tube on the digital corresponding elastic clip of plug " 0 ", load onto fuse tube on other corresponding elastic clip, when sense of rotation " 0 ", plug insertion socket, owing to do not have fuse tube on the elastic clip, circuit is in off-state; When knob points to other numerals, will form a power circuit that constitutes by input flexibility socket folder, input plug, conducting slip ring, spring contact, contact, fuse tube, conducting ring, the plug in folder of output, output resilient socket folder, power consumption equipment, output elasticity holder folder, output plug, C type conducting strip, input plug, input flexibility socket folder.Make power consumption equipment energising start operation, capacity fuse need change or when changing fuse, only need the turn knob that corresponding numeral of fuse tube of its sensing place in circuit of wanting is got final product.

As described above if when wanting open circuit, be live wire as long as the turn knob makes that its sensing digital " 0 " can disconnect at this moment.If want long-term or the long period goes out, power consumption equipment is out of service, also plug can be pulled up, and at this moment circuit also disconnects, and this moment, live wire and zero line all cut off.

Use isolator fuse group protection power consumption equipment; prevent circuit overloads and short circuit; have two kinds of functions of fuse protection and buffer circuit; it is safe in utilization, convenient; capacity fuse can change with the volume change of power consumption equipment; fuse can be changed at any time and be rapidly convenient, has eliminated the fuse that in the past used and has changed frequently, changes the shortcoming that needs the long period to have a power failure.

Accompanying drawing is the structure chart of an embodiment of the present utility model.Further specify the utility model below in conjunction with accompanying drawing.

Fig. 1 is the overall structure figure of isolator fuse group.

Fig. 2 is an isolator fuse group vertical view.

Fig. 3 is a flange body sub-assembly vertical view.

Fig. 4 is a flange body sub-assembly upward view.

Fig. 5 is a socket base plate vertical view.

As shown in the figure, isolator fuse group is plug, socket form, flange body (6) is fixed in plug casing (25) cavity by bolt (14), conducting ring (23), conducting slip ring (24) are fixed on the flange body upper disk surface, fuse tube (8) is the below along flange body card circumference uniform distribution in flange body, is fixed under the flange body on the card by elastic clip (7); The capacity of fuse tube can have same load current value as required, and also the load current value that can have nothing in common with each other can also be divided into plural fuse tube group, and every group of fuse tube has same load current value.Fuse tube input elastic clip rivet clasp is on flange body, the rivet end cap that is positioned on the flange body upper disk surface constitutes contact (5), the direct rivet clasp of fuse tube output elastic clip is at the conducting ring place of flange body, make conducting ring and fuse tube output elastic clip realize that energising is connected by rivet, conductive elastic contacts (4), secondary spring contact (3) stack is installed on the rotation axis (2), spring contact is made spring contact one end and the tight sliding contact of conducting slip ring by secondary spring contact reinforcing, the spring contact other end keeps well contacting with contact (5), rotation axis is fixed on flange body central authorities axis hole place by nut (21) spring (20), rotation axis and flange body can rotate mutually, when rotation axis rotates, spring contact rotates thereupon, rotation axis stretches out the outer axial end of housing and is fixed with knob (1), plug (10), (27), (28), (29) one ends are fixed on the flange body, the other end stretches out the housing lower surface, input plug (27) is connected with conducting slip ring, output plug (10) is connected with fuse tube output elastic clip by T type conducting strip (26), and then realize that with conducting ring energising is connected, input plug (29) be fixed on flange body under C type conducting strip (31) one ends on the card be connected output plug (30) and be connected with the C type conducting strip other end, safe in utilization in order to guarantee, there is base plate (9) the housing lower end, connect with housing by securing member, the live components in the plug casing cavity is isolated from the outside.

Have 0,1,2,3,4 on the outer wall of plug casing top ... Deng numeral, the isolator fuse group of schematic structure has 10 numerals, and wherein 1,2,3 ..., 9 each numeral are corresponding with a fuse tube, so that be convenient to change the capacity of fuse tube and selection fuse tube when using.

Be fixed with socket elastic clip (15), (32), (33), (34) on the base plate of socket, connecting plate (13) is connected with the socket elastic clip, screws screw (11), connecting plate, screw formation termination on the connecting plate.Side wall surface has wiring hole, and the cap (19) of plug-socket is arranged on the roof face, and by bolt (16), nut (17) is fastening to be connected on the socket base plate, and live components in the socket cavity is isolated from the outside.

During use, socket is fixed on the mounting panel, power line is fastened on connecting plate by screw threads, and socket input socket elastic clip is connected with power supply and power consumption equipment respectively.Plug mark " 0 " corresponding section, fuse tube is not adorned in the elastic clip room, and other corresponding elastic clip in numeral place are installed fuse tube.If make circuit be in off-position, then knob is screwed into the sensing digital " 0 ", if require fuse tube place in circuit with a capacity, with the protection power consumption equipment, when preventing circuit overloads and short circuit, then knob is screwed into and points to and the pairing numeral of the corresponding fuse tube of this capacity place, the fuse tube of institute's capacity required can be connected in the circuit; Long period is stopped using all power consumption equipments if desired, both knob can be screwed into sensing " 0 ", also plug can be extracted.

If when zero line in the supply network and live wire generation paraphase, can be with 80 ° of insertions of plug circulator, just fuse tube is always worked under the correct status.

Claims (3)

1; a kind of protective device that is used to prevent circuit overloads and short circuit; it is by plug; socket is formed; it is characterized in that said plug construction is that flange body (6) is fixed in the housing (25); be fixed with conductive ring (23) and conducting slip ring (24) on the flange body upper disk surface; fuse tube (8) is distributed on the flange body below along the flange body card and also is fixed on the flange body by elastic clip (7); one end of fuse tube is connected with conducting ring by elastic clip; its other end is connected with contact (5) on being positioned at the flange body upper disk surface by elastic clip; spring contact (4) is loaded on the rotation axis (2) with secondary spring contact (3); rotation axis is positioned at flange body centre and flange body for being rotationally connected; spring contact one end and conducting circular cylinder are for being slidingly connected; its other end contacts with contact (5); conductive ring is connected with the plug (8) that an end is fixed on the flange body; conducting slip ring is connected with the plug (27) that an end is fixed on the flange body; be fixed with C type conducting strip (31) under the flange body on the card; C type conducting strip one end is connected with the plug that is fixed on flange body (29), and the other end is connected with plug (30) on being fixed in flange body.

2, by the described circuit protection device of claim 1, it is characterized in that said fuse tube can have same rated current, also can be divided into plural fuse tube group; Every group fuse tube can have same rated current, also can be that the rated current of each fuse tube is different.

3, by the described circuit protection device of claim 1, it is characterized in that rotation axis stretches out the outer axial end of plug casing roof and is fixed with knob (1), the roof face is marked with numeral, and each numeral is corresponding with a fuse tube in the plug casing.

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