CN2170576Y

CN2170576Y - Transfer switch

Info

Publication number: CN2170576Y
Application number: CN 93221172
Authority: CN
Inventors: 刘天章
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-08-08
Filing date: 1993-08-08
Publication date: 1994-06-29
Anticipated expiration: 2003-08-08

Abstract

The utility model relates to a voltage transfer switch used on an automobile. The voltage transfer switch is characterized in that the casing of the coil curl of a fixed contactor is the static iron core of the contactor, the casing is connected with a bakelite ring used for fixing a normally opened static contact, and the bakelite ring is embedded with the casing of a normally closed static contact; a movable iron core is fixed in the casing via a compressed spring and the central hole of a top cover embedded in the casing, and the movable contacts of the normally opened static contact and the normally closed static contact are respectively fixed with the baffle plate of the movable iron core. The utility model has few exposed part of electric elements, high safety, ingenious and compact structure, waterproof and dustproof performances, elements are positioned in a closed state, and the utility model is suitable for the running environment of the automobile.

Description

Transfer switch

The utility model is the voltage change-over switch of using on a kind of automobile.

The patent No. is 92201209.1 automobile electrical pressure change over switch, and its electrical principle and magnetic Circuit Design all can reach designing requirement, and its shortcoming is that structural design is unreasonable, and the outer dew point of live components is more, dangerous; The waterproof and dustproof poor performance, the environment that the incompatibility automobile uses.

The purpose of this utility model provide a kind of compact conformation rationally, waterproof and dustproof, change over switch easy for installation.

Feature of the present utility model is, base is by the circular housing of iron plate material, the coil stationary that forms by the skeleton coiling therein, the backplate of dress iron plate material constitutes closed magnetic circuit with housing on the openend of housing, forms the contactor static iron core; Often open fixed contact for two and make strip with copper plate, be embedded in respectively on the electric bakelite circle of an annular band mesopore with the pinout connector of coil, the part that exposes from the electric bakelite circle is two often to open fixed contact, backplate on electric bakelite circle and the coil is with being threaded, be embedded with round bakelite shell on the electric bakelite circle mutually, be embedded with top cover on the shell; More than be contour structures of the present utility model, its good seal performance, waterproof, dustproof; Moving iron core is made into the cylindrical stage scalariform by low-carbon steel material, one end is thick, an end is thin, locate in the centre bore on the thin end insertion top cover, a thick end is packed in the electric bakelite circle mesopore, outer suit compression spring, one end of spring is stuck on the baffle on the coil, and an end is stuck on the insulation cushion on the moving iron core; On the thin end of moving iron core a circle is housed and often starts contact, moving contact is fixed by the cap shape dividing plate that is sleeved on the moving iron core, insulate with insulation cushion between moving contact and moving iron core and the dividing plate, on the moving iron core clamp nut being housed fixes dividing plate, fix two normally closed moving contacts with screw and spring symmetry on the shade of dividing plate both sides, normally closed fixed contact is fixed on the shell.

The utility model is to solve 24 volts of automobile voltage startings, moves 12 volts preferred plan, and the electric device exposed parts is few, safe and reliable; Exquisite compact on the structure, components and parts are in closed state, and water proof and dust proof is suitable for the automobilism environment.

Fig. 1 is a structure chart of the present utility model;

Fig. 2 is an electrical schematic diagram of the present utility model;

Fig. 3 is the part figure in addition of dividing plate;

Fig. 4 is the vertical view of Fig. 3.

Be that the utility model is described in further detail for embodiment below with the accompanying drawing:

Base is by drain pan 1, three other parts of mounting panel and directed pin assemble, drain pan 1 is by the circular housing of iron plate material, the coil windings of being made by backbone winding 2 is fixed in the drain pan, adorn a backplate 3 on the openend of drain pan 1, backplate 3 is by the iron plate material, backplate 3 constitutes closed magnetic circuit with drain pan 1, the static iron core of forming contactor, use the annular electric bakelite circle 4 of the band mesopore that is threaded on the backplate 3, often open fixed contact 15 for two and be strip, make by copper plate, be embedded in respectively on the electric bakelite circle 4 with the pigtail splice of coil 2, the part that exposes from electric bakelite circle 4 is two often to open fixed contact, often opens two that fixed contact 15 embeds electric bakelite circle 4 ends and exposed end all leaves the wiring screw; Be embedded with round bakelite shell 5 on the electric bakelite circle 4 mutually, be embedded with top cover 6 on the shell 5; Moving iron core 7 is made the cylindrical stage scalariform by low-carbon steel material, one end is thick, one end is thin, locate in the centre bore on the thin end insertion top cover 6, the moving contact 9 of circular normally open contact is housed on this end, moving contact 9 is fixing by the cap shape dividing plate 11 that is sleeved on the moving iron core 7, insulate with insulation cushion 8,10 between moving contact 9 and moving iron core 7 and the dividing plate 11, dividing plate 11 usefulness engineering plastics are made, and it is fixing with dividing plate 11 that clamp nut is housed on the moving iron core 7, is lined with insulation cushion 13 between nut and the dividing plate 11; The moving contact 12 of two normally closed interlocks is fixed in the last shade both sides of cap shape dividing plate 11 with screw and spring symmetry, moving contact 12 is a semicircular arc, the fixed contact 16 of normally closed interlock is fixed on the shell 5, dividing plate 11 both as often open, the moving contact fixture of normally closed interlock, can play guiding, spacing, location again; Moving iron core 7 thick ends pass from electric bakelite circle 4 mesopores, and outer suit compression spring 14, an end of spring 14 are stuck on the backplate 3 on the coil 2, and an end is stuck on the insulation cushion 8 on the moving iron core 7.

Operation principle: its electric principle as shown in Figure 2, normally open contact Z ₁Be serially connected in two storage battery E ₁, E ₂Between, two normally closed interlock Z ₂, Z ₃One end lead-in wire meets normally open contact Z respectively ₁, the other end meets two storage battery E respectively ₁, E ₂Another electrode, after coil 2 energising, iron core 7 move in the static iron core adhesive, moving iron core 7 compression springs 14 often start contact 9 and connect 24 volts of voltage startings of two storage batterys series connection supply starter motor with the fixed contact 15 of often opening on the electric bakelite circle 4; Coil 2 outages, compression spring 14 discharges, and moving iron core 7 resets, and the two normally closed moving contacts 12 that are fixed on the dividing plate 11 are connected with two corresponding fixed contacts 16 respectively, and two storage battery parallel connections this moment provide 12 couchers to make voltage.

Claims

1, the voltage change-over switch of using on a kind of automobile is characterized in that coil windings (2) is fixed in the drain pan (1), and drain pan (1) openend is fixing with coil windings (2) with backplate (3), and drain pan (1) and backplate (3) are formed the static iron core of contactor; Backplate (3) is threaded with round bakelite circle (4) on it, is embedded with two in the bakelite circle (4) and often opens fixed contact (15), is embedded with shell (5) on the bakelite circle (4), and top cover (6) is housed on the shell (5); Moving iron core (7) is that an end is thick, an end is thin, step-like cylinder, butt end inserts in bakelite circle (4) centre bore, and compression spring (14) one ends of outside suit fix at backplate (3) upward fixing, locate in the centre bore on the moving thin end insertion top cover of iron core (7) (6); On the thin end of moving iron core (7) circle is housed and often starts contact (9), fixing by the cap shape dividing plate (11) that is contained on the moving iron core (7), dividing plate (11) is fixed by the clamp nut that is contained on the moving iron core (7), symmetry is fixed two normally closed moving contacts (12) on the shade of dividing plate (11), and normally closed fixed contact (16) is fixed on the shell (5).

2, change over switch as claimed in claim 1 is characterized in that said normally closed moving contact (12) is fixed on the dividing plate (11) by screw and spring.