Plug

 

(57) Abstract:

Usage: in electrical engineering to connect consumers to a standard network socket through the fuses. The inventive plug includes a housing 1 made of insulating material, the alignment posts-fuses 2, the contact elements 3, and the pin-fuse 2 is rigidly fixed in the housing 1 by means of the threaded hole 4 with the possibility of electrical contact with the contact elements 3. The pin-fuse 2 comprises a tubular element 5, the lugs 6, the fusible element. The end 9 of the pin is made with thread. 1 C.p. f-crystals, 4 Il.

The invention relates to electrical engineering and can be used to connect consumers to a standard network socket through the fuses.

Known plug with fuse, comprising a housing, guide pin pins rigidly mounted in the housing, and is made in the form of brackets rectangular cross-section, fuses in the form of tubular elements with the lugs on the outer and internal to the body of the fork ends of the contact e is th plug one end of each fuse is placed in its housing, fuses are installed between the mounting petals and a guiding pin and electrically interact with the contact elements, one end of the fuse covered by guiding the contact pin. The plug is installed on the panel of the receiver. It attaches special socket with nests made with the possibility of interacting with rectangular pins of the plug. Special socket has the ability to connect to a standard power outlet via a standard plug.

The disadvantages of the known plugs are the complexity of the design, due to the presence of a contact alignment posts of rectangular cross-section, requiring the production of special sockets and plug and a special socket for it are intermediate between consumer of electricity and network receptacle, which complicates consumer of electricity in General and requires special tools and tooling for the manufacture of plug and socket, unnecessary consumption of materials, and the presence of special mounting petals and springs; reduced functionality due to the presence of a special guide pins and newsmontana increase in the number of transient electric resistance between a standard AC wall plug and power consumer, and the fact that the fuse is held in the pin only due to friction created by the spring force through the mounting lug, and it is therefore possible loss of the fuse from the plug, for example, when the impact load on the device, where the plug is installed, for example during transportation; increased size due to the presence of springs.

The purpose of the invention is to simplify the construction and extension of functionality through direct interaction outer end of the fuse socket standard wall outlet.

This is achieved by the fact that in the plug, comprising a housing, contact elements, guides contact pins made in the form of fuses with tips on external and internal to the body ends of the two internal tip with the contact elements, the body of the fuse is made of impact-resistant dielectric material, the tip on the outer end is made in the form of a conductive coating to communicate with the outlet, and the tip on the inner end provided with a device for rigid connection with the case.

The tip on the outer end of the fuse can be the imp the curtain plug-mount pin-fuse through the thread; in Fig.2-4 - a special case of the execution of the pin-fuse with thread.

Plug for connection to a standard power outlet includes a housing 1, made for example of insulating material (plasmas) pressing, the alignment posts-2 fuses, made in accordance with the requirements of the fuses and the pins of plugs, the contact elements 3. The pin-fuse 2 is rigidly fixed in the housing 1, for example, through a threaded hole 4 with the possibility of electrical contact with the contact elements 3. Possible special case mounting and shielding the pin-fuse 2 through a thread in the contact element 3. Possible special case of the mounting of the pin-fuse 2 by means of a bayonet or flange and similar compounds.

The pin-fuse 2 (Fig. 2-4) in all cases comprises a tubular element 5, the lugs 6, the fusible element 7 is soldered to electrically divided the lugs 6. The end 8 of the pin-fuse 2 is made with the possibility of mechanical and electrical engagement with the socket wall outlet with their connection, and the end 9 is made, for example, with thread. The tubular element 5 wipoah-4C, Vers, etc., (Fig.2 and 3), or from a metal tube, which is a tubular element of the fuse and its tip is insulated (if necessary) the inner surface of the layer of ceramic, glass or PTFE 10 (Fig.4), caused, for example, sputtering. The lugs 6 may be made or plated tubular element 5 (Fig.2), or in the form of metal tubes attached to the tubular element 5 (Fig.3). The fuse according to Fig.4 in addition to the tubular element tip 5(6) contains a tip on the end 9 in the form of a washer 11 (6), isolated from the tubular element tip 5(6) of the dielectric plate 12. Possible other options pin-fuse 2.

Works plug as follows.

Consumer of electricity through Stuhr (cable) is connected to the contact elements 3. When connecting the plug from the mains socket guide pin-fuse 2 is fixed in the socket outlet and the electric current of the network is fed through a socket outlet to the lugs 6E all 8 pins-fuse 2, then through the fusible elements 7 to the lugs 6 of the ends 9 and through the contact elements 3 to the consumer. Upon the occurrence of the short circuit current in the consumer placenta 7) is possible only with full rassledovanie plug and socket means, for example, unscrewing the faulty pin-fuse 2 from the housing 1 of the plug and screwing the new or renovated pin-fuse.

The proposed plug differs from prototype simpler design, less metal consumption, smaller size and more features, so as a preservative in addition to its primary function the function of directing the contact pin of the plug, and the plug has the opportunity to interact directly with a standard wall outlet.

1. PLUG, comprising a housing, contact elements and guides the contact pins, made in the form of fuses with the lugs on the outer and inner ends relative to the body, interacting with internal tip with contact elements, characterized in that the body of the fuse is made of impact-resistant dielectric material, the tip on the outer end is made in the form of a conductive coating to communicate with the outlet, and the tip on the inner end provided with a device for rigid connection with the case.

2. Fork under item 1, characterized in that the tip at the second washer.

 

Same patents:

FIELD: fire dangerous industrial plants.

SUBSTANCE: plug socket can be used in industrial plants when automatic disconnection of electric circuits is required if environmental temperature increases till specified limit. Plug socket of electric connection has case, contact group, safety fuse, resilient member intended for disconnecting plug socket from plug, and protection casing with holes mounted onto case. Resilient member and safety fuses are disposed between case and protection casing. Safety fuse doesn't belong to electric circuit and it is made in form of insertion. Resilient member is fixed in compressed position by safety fuse which has insertion made of material with temperature of melting being equal to 85-90°C. Heat-insulating gaskets are mounted among insertion, case and casing. Casing is made of material with heat conductance being equal or higher than 100-160-kcal/m·hour°C. Plug socket is provided with locker, which provides irreversibility of disconnection of electric circuits.

EFFECT: improved precision of operation induced by influence of environment; provision of irreversible disconnection.

1 dwg

FIELD: electricity.

SUBSTANCE: electric connector socket comprises a body, a protective jacket with an inner groove, installed on the body, a contact group, a fusible switch, an elastic element. The elastic element and the fusible switch are located between the body and the protective jacket. The fusible insert is made as a fusible insert. The elastic element is fixed in compressed condition at one side with the inner groove of the protective jacket, and at the other side - by a press nut. The protective jacket is made from material with heat conductivity in the range of 100-160 ccal/m hourC. At the same time the protective jacket is made as solid from steel with wall thickness of at least 1 mm. The fusible switch in the form of a bushing is made from material of fusible alloy with melting temperature of 102C-105C, on the basis of such metals as bismuth, cadmium, tin, at the ratio of wt %, accordingly 50-55, 20-22, 25-28, and is pressed with an elastic element with specific pressure arriving from the force of the compressed elastic element at the area of the ring of the fusible switch in the range of 25-27 g/mm2.

EFFECT: protection of a fusible switch from possibility of radiation exposure of environment and limitation of manifestation of fusible switch material plasticity, which increases service life of an electric connector socket.

1 ex, 1 dwg

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