CN209626607U - A kind of device of short circuit power-off protection - Google Patents

Abstract

The utility model discloses a kind of devices of short-circuit power-off protection, including are equipped with security unit, security unit fixing shell and connection unit.The present apparatus is simple and practical; it can be in the case where not changing existing cable system; it conveniently connects between system power equipment and electrical equipment; and it can realize and be isolated between multiple-way supply; it does not influence other electrical equipments when certain short trouble occurs all the way, realizes the function of multichannel short circuit power-off protection.

Description

A kind of device of short circuit power-off protection

Technical field

The utility model belongs to power-off protection technical field more particularly to a kind of device of short-circuit power-off protection.

Background technique

There are two types of application modes in system for the device of short circuit power-off protection at present, and one is be set to controller switching equipment output to connect Mouthful carry out short-circuit protection, but this protected mode occur certain all the way electrical equipment short trouble when, entire controller switching equipment can be broken It opens, the electrical equipment of other no problems also can not work normally, and utilizes to the function of whole system and causes unnecessary loss.Separately One is be set to electrical equipment input interface carry out short-circuit protection, but this protected mode once before end loop break down, Cause electrical equipment short-circuit protection, needs to expend very big manpower and material resources and replaced, seriously affect progress.Both short circuits are protected Shield mode is also only to be protected to power supply unit and electrical equipment single machine internal short-circuit, power supply unit and electrical equipment it Between connecting link short trouble when can not play a protective role, entire electrical system is not completely covered, there are system weakness Link.

Utility model content

The purpose of this utility model is to provide one kind in the case where not changing existing system cable net state, solves chain The device of short out road protection problem, simple easily replacement, to solve problems of the prior art.

To achieve the above object, the utility model provides the following technical solutions, it is a kind of short circuit power-off protection device include Security unit, security unit fixing shell and connection unit.The security unit has interest (8), the insurance A pair of lead wires terminal (9) that main body (8) left and right ends are extended, the pair of lead terminal (9) both ends use conductor (2) respectively Lead terminal is extended into appropriate length, the interest (8) with appropriate length conductor (2) uses the packet of electrical insulating property It is put into the correspondence mounting hole of interest fixing shell (7) after covering material cladding protection, and is potted fixation using glue, institute It states the interest fixing shell (7) that processing is completed to be packed into security unit fixing shell (4), makes the fixed top wire hole (6) It after alignment, is carried out screwing fixation with countersunk head screw, puts on the conductor protection overcoat (3), fill in the security unit shell (4) it is compressed in both ends hold assembly (10), avoids conductor (2) and conductor protection overcoat (3) activity stress, described leads Conductor on lead terminal one end is connected on connection unit 1 (1) by body (2) according to the corresponding relationship of actual use, by lead After conductor on the terminal other end is connected on connection unit 2 (5), conductor protection overcoat (3) is filled in into the connection unit 1 (1) in the hold assembly (10) and on connection unit 2 (5).

Preferably, the interest lead terminal extends material selection high temperature wire, and off-line mode takes controllable temperature Hot soarfing mode, avoids damage to core wire, guarantees the reliability of conducting wire.

Preferably, soldering boxing mode is taken in the connection of conducting wire and lead terminal in the interest, by leading for de- head Line is flat to realize that reliable electric connects using soldering mode after 2 circles.

Preferably, the protective layer of interest and exit is the heat shrinkable material for heating after-contraction, then in this way It determines the bore size of interest fixing shell, i.e., can readily store interest, and keep suitable gap, It can be fixed using cement material.

Preferably, the interest fixing shell material selection insulating properties bakelite material, can make device light weight in this way Change.

At present without the similar prior art, match the beneficial effects of the utility model are: the utility model has filled up electrical system The blank of link short circuit protective device, ingenious in design between electric equipment and electrical equipment, does not need to connect existing electrical system Net carries out any change, and plug and play is convenient and efficient.

Detailed description of the invention

Fig. 1 is the utility model overall structure diagram；

Fig. 2 is the utility model security unit structural schematic diagram；

Fig. 3 is the utility model interest and leading-out terminal structure schematic diagram；

Fig. 4 is that the utility model interest protects shell mechanism schematic diagram；

Fig. 5 is the protection shell mechanism schematic diagram of the utility model security unit.

In figure: 1, connector 1,2, conducting wire, 3, polyamide fibre silk braid, 4, security unit protective shell, 5, connector 2,6, fixed top Wire hole, 7, interest fixing shell, 8, interest, 9, leading-out terminal, 10, hold assembly

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

Illustrate the embodiments of the present invention referring next to Fig. 1.A kind of dress of cable type short-circuit protection shown in FIG. 1 It sets, it is solid to have one of them in 37 interests with solderable lead, 1 security unit fixing shell, 1 band cable Lapping is described as transparent by the protection shell of clamp and 2 corresponding connectors chosen in order to show its internal structure 's.

The security unit has interest (8), a pair of lead wires that interest (8) left and right ends are extended Terminal (9), the pair of lead terminal (9) both ends use conductor (2) that lead terminal is extended to appropriate length, the band respectively There is the interest (8) of appropriate length conductor (2) solid using interest is put into after the covering material cladding protection of electrical insulating property In the correspondence mounting hole for determining shell (7), and fixation, the interest fixing shell that the processing is completed are potted using glue (7) it is packed into security unit fixing shell (4), after being directed at the fixed top wire hole (6), screw with countersunk head screw solid It is fixed, the conductor protection overcoat (3) is put on, fills in the both ends hold assembly of the security unit shell (4) and is compressed, Conductor (2) and conductor protection overcoat (3) activity stress are avoided, the conductor (2), will according to the corresponding relationship of actual use Conductor on lead terminal one end is connected on connection unit 1 (1), and the conductor on the lead terminal other end is connected to connection After on unit 2 (5), conductor protection overcoat (3) is filled in into the hold assembly on the connection unit 1 (1) and connection unit 2 (5) It is interior.

Interest both ends lead is cut, and apart from 4~5mm of ontology root, carries out warding off tin removal oxidation after complete Layer processing is stand-by, and welding must be used in 7h, and the interest after tin will be warded off by, which needing if more than the time, is placed in sealing container. After carrying out conducting wire cutting according to length needed for adaptation product, hot soarfing device takes off head, draws at the both ends for the interest for having warded off scolding tin Away from being put down respectively outside the 2mm of root around the circle of coiling 2 on line, constant temperature electric iron is used to carry out soldering.

Interest extends after work completes, by by hot shortness's insulating sleeve of height insulation by interest and boxing Solder joint is coated.This lapping can for example select the silicone resin of hot shortness, its heat resistance is good, have 150 DEG C or so shrink and up to 200 DEG C of heat resistance, be applicable to this kind of cladding.The heat resisting temperature of interest should be than this material Heat resisting temperature is low, in case kindling, improves safety.

According to the demand of adaptation product, the interest fixing shell of suitable hole count is selected, by the good interest of pyrocondensation It with the silicon rubber (GD414) of cementation on external application, is gently inserted into corresponding hole, this single-component silicon rubber is inhaled Moisturecuring can have certain cement strength after need to only standing for 24 hours, never move in solidification process.

After solidification, polyamide fibre silk braid is inserted in respectively on the conducting wire of the boxing of exit, will after being bound using bright and beautiful silk thread Fixing shell with interest, which pushes away, to be put into the protection shell with cable retention clip, aperture and protection shell on shell to be fixed Apertures in alignment after, band glue is screwed into jackscrew and tightens, and guarantees that both fixing shell and protection shell are reliably connected.

Polyamide fibre silk braid (inside having conducting wire) at protection shell both ends tabletting is wound guarantor using polyfluortetraethylene pipe After shield, by screw-driving, so that tabletting be made to push down extraction wire, weld forced breakage is avoided, improves reliability.

According to adaptation product to point number requirement, by lead-out wire both ends correspondence be welded on selected connector, pass through After polyamide fibre silk braid (inside having conducting wire) at connector tabletting is wound protection using polyfluortetraethylene pipe, by screw-driving, from And push down tabletting by extraction wire, weld forced breakage is avoided, reliability is improved.

It is obvious to a person skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and And without departing substantially from the spirit or essential attributes of the utility model, it can realize that this is practical new in other specific forms Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this is practical new The range of type is indicated by the appended claims rather than the foregoing description, it is intended that containing for the equivalent requirements of the claims will be fallen in All changes in justice and range are embraced therein.It should not treat any reference in the claims as limiting Related claim.

In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art The other embodiments being understood that.

Claims (11)

1. a kind of device of short circuit power-off protection, including it is equipped with security unit, security unit protects shell and connection unit, It is characterized in that, security unit includes multichannel interest and a pair of of the leading-out terminal extended from every road interest, insurance Main body is permanent fusible link, restorability fuse or other devices with short-circuit protection function；A kind of cladding multichannel The material with electrical insulating property of interest；The multichannel main body fixing shell of electrical insulating property material；

It is that conducting wire either has conductor with leading-out terminal linkage function that interest leading-out terminal, which is extended the material selected,.

2. a kind of device of short-circuit power-off protection according to claim 1, which is characterized in that tin can be taken by extending operation Weldering mode can also take crimping mode, but not only limit above two mode.

3. a kind of device of short-circuit power-off protection according to claim 1, which is characterized in that the both ends of the interest Extension node at use insulative resin pipe covering protection.

4. a kind of device of short-circuit power-off protection according to claim 3, which is characterized in that the insulative resin pipe is It is formed by thermoretractile resin material.

5. a kind of device of short-circuit power-off protection according to claim 1, which is characterized in that cladding multichannel interest Material has the cement material higher than aforementioned interest heat resisting temperature.

6. a kind of device of short-circuit power-off protection according to claim 1, which is characterized in that the multichannel interest is solid Determine shell to be process by electrical insulating property material mechanical, has to make to meet the interest needed for protection product and all put The geomery in the vacancy and suitable fixed force effect set, the fixed bore size of general insurance main body are slightly larger than interest ruler It is very little, 0.5mm or more spacing is kept between each fixed aperture, guarantees insulation.

7. a kind of device of short-circuit power-off protection according to claim 1, which is characterized in that the both ends of the interest Extension conductor carry out insulation processing protection, can be Polyamide Yarns casing, can also be teflon sleeve, but be not limited to State two kinds.

8. a kind of device of short-circuit power-off protection according to claim 1, which is characterized in that security unit shell is with folder Fixation member is held, the leading-out terminal for guaranteeing that interest is stretched out is reliably fixed, and avoids forced breakage.

9. a kind of device of short-circuit power-off protection according to claim 1, which is characterized in that connection unit is a pair of or more To the connector that pairing uses, can be required according to user, flexible choice.

10. a kind of device of short-circuit power-off protection according to claim 1, which is characterized in that the security unit draws Terminal is connected with the one or more pairs of connectors of connection unit out, can pass through conductor connections, it is also possible to other connections Mode realizes conducting connection.

11. a kind of device of short-circuit power-off protection according to claim 1, which is characterized in that the guarantor with fixed device Shield shell shape and size are designed according to multichannel interest fixing shell.