CN2353061Y - Shock-proof type three phase electric power supply socket - Google Patents

Abstract

The utility model relates to a shock-proof type three-phase supply socket, which is provided with an insulating shell, wherein, a porcelain core is arranged in the insulating shell, an electrode jack is arranged on the porcelain core, and a connecting line electrode in the jack realizes the cambered surface connection by inward fastening force generated by a cylindrical spring through two fastening cylindrical plugs of half circular cambered surface bodies. The three-phase power supply socket uses a surface contact mode, has the advantages of small contact resistance, small volume, little power consumption, good vibration resistance, stable and reliable operation after connection, long service life, low cost and easy fabrication. The utility model is particularly suitable for automotive apparatuses, and mobile electric apparatus, such as belt conveyers, agitating machines, etc.

Description

Antivibration formula three-phase power socket

The utility model relates to supply socket, particularly three-phase power socket.

Present widely used three-phase power socket, its plug is the elastic force that relies on the geometric modeling formation of self with contacting of socket.Contact area is little, is almost a contact, and not only contact resistance is big, can not satisfy the circuit instructions for use, and the phenomenon that is short-circuited easily will be pegged graft several times sometimes repeatedly, just can finish circuit and connect.Under the vibration operating mode, connect when breaking when circuit is easy, interpolar causes that electric arc produces melting welding.The thing that the running of generation phase shortage burns out motor also happens occasionally.

Task of the present utility model is: overcome the deficiencies in the prior art, it is reliable to design a kind of working stability, simple in structure, and cost is low, anti-vibration, the antivibration formula three-phase power socket of long service life.

Task of the present utility model realizes as follows: antivibration formula three-phase power socket, it has an insulation shell, porcelain core is housed in it, porcelain core is provided with electrode mounting hole, each Kong Jun is provided with two identical semicircle contour bodies within it as connection electrode, with the obvolvent of two semicircle contour bodies, its joint portion forms garden pass electrode and connects jack, the inner arc of the cross section of jack is the ellipse that is similar to of the equal incomplete semicircle composition of two radiuses, outer arc is the garden that the equal semicircle of two radiuses is formed, be enclosed within on the drum electrode with two cylindrical springs, the diameter of bore of spring is slightly less than the cylindrical tube shape electrode diameter.

Adopt structure of the present utility model, after plug inserted jack, plug produced tension force radially outward, the socket electrode of two bodies is separated, and act on the cover spring thereon, spring produces radially inwardly tight Shu Li, act on the plug by semicircle cambered surface battery lead plate, plug is tightened.Therefore realized that the face contact connects, connection power is constant elastic force, has resistance to shock, reliable operation.Because the contact area between plug of the present utility model and the socket is big, contact resistance is little.So can make small product size little, dissipation power is little, and cost is low.

Fig. 1 is the utility model front section view;

Fig. 2 is that the C of Fig. 1 is to view;

Fig. 3 is the connection electrode schematic diagram;

A most preferred embodiment of the present utility model, as figure, antivibration formula three-phase power socket, it has an insulation shell, porcelain core (5) is housed in it, and porcelain core is provided with four jacks, the connection electrode (4) that each jack forms by the contour body phase obvolvent identical with arc length of its two built-in radiuses, its cross section is that radius equates, the scarce round jack that arc length equates.The cylinder spring (3) that diameter of bore equates with the jack outer diameter is sleeved on the contour body outer wall movingly.Interstage sleeve (1) is housed at the two ends of spring, between two springs, sheath is housed.Identical be complementary plug (8) shape used of receptacle sockets with jack, be a cylinder, its section radius equates with the internal diameter of two imperfect semicircles of connection electrode cross section inner arc.Base (6), protective jacket (2), lead-in wire (7).

Claims (1)

1 one kinds of antivibration formula three-phase power sockets, it has an insulation shell, porcelain core is housed in it, porcelain core is provided with electrode mounting hole, in each hole electrode is housed, it is characterized in that: electrode is identical two semi arch bodies, with the obvolvent of two semicircle contour bodies, its joint portion forms the circular hole electrode and connects jack, the inner arc of its cross section of jack is the approximate what ellipse that the equal imperfect semicircle of two radiuses is formed, outer arc is the circle that the equal semicircle of two radiuses is formed, and is enclosed within on the drum electrode with cylindrical spring, and the diameter of bore of spring is slightly less than the cylindrical tube shape electrode diameter.

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