CN2262739Y

CN2262739Y - Stepless adjustable voltage transformer

Info

Publication number: CN2262739Y
Application number: CN 96203905
Authority: CN
Inventors: 郑克发
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-01-30
Filing date: 1996-01-30
Publication date: 1997-09-17
Anticipated expiration: 2006-01-30

Abstract

AThe utility model relates to a stepless adjustable voltage transformer which comprises an iron core and a coil. The utility model is characterized in that the transformer adopts the rotary coil formed by being rolled on a rotatable thread barrel sheathed on the iron core, and one end of the thread barrel is provided with an open conducting slip ring. The conducting slip ring and any turn of the coil are respectively provided with an electric brush of the slip ring and the electric brush of the turn, and output lines are respectively led out from the electric brush of the slip ring and the turn. The utility model cause the electric brush of the turn to slip on the turn through rotating the thread barrel, accordingly the number of the coil turns extracted from the electric brush of the slip ring and the electric brush of the turn is changed, and the purpose of loaded stepless voltage adjustment is achieved.

Description

A kind of stepless voltage regulation transformer

The utility model relates to transformer.More particularly, be a kind of cored unicoil or two-winding transformer.

In the prior art, cored transformer all can only not have and is loaded with a grade pressure regulation.

The purpose of this utility model is to avoid the deficiencies in the prior art part, and a kind of cored unicoil or two-winding transformer that carries stepless voltage regulation of realizing having is provided.

The purpose of this utility model is achieved through the following technical solutions:

The utility model comprises iron core and coil, it is characterized in that adopting rotary coil, described rotary coil is to be with rotating line tube on iron core, coil winding is on this line tube, line tube one end is provided with uncovered conducting slip ring, on described conducting slip ring and the arbitrary wire turn of coil slip-ring brush and wire turn brush are set respectively, output line is drawn from slip-ring brush and wire turn brush respectively.

The utility model slides the wire turn brush by the rotational line tube on wire turn, thereby changes the coil turn of being drawn by slip-ring brush and wire turn brush, and reaching has the purpose of carrying stepless voltage regulation.

Compared with the prior art, the utility model adopts and install slip-ring device additional on coil, use metallic brush directly to contact wire turn, on coil, rise or descend, short-circuited turn not, the circle electromotive force can be obtained higher, can be widely used in cored unicoil or two-winding transformer, as pillar voltage regulator, compensator transformer, autotransformer etc.Its reliability height, overload capacity are strong, maintenance easily.

Fig. 1 is the utility model structural representation.

Fig. 2 is the utility model slip ring and slip ring spider structural representation.

Fig. 3 is Fig. 2 right view.

Fig. 4 is Figure 1A-A cut-away view.

Fig. 5 is the utility model electrical block diagram.

Fig. 6 is the utility model auxiliary circuit schematic diagram.

Fig. 7 is the utility model control circuit schematic diagram.

By the following examples, in conjunction with the accompanying drawings, the utility model is described in further detail.

Embodiment:

Referring to Fig. 1, on iron core 1, be with rotating line tube 2, line is around on this line tube 2, line tube one end is provided with uncovered conducting slip ring 4, on described conducting slip ring 4 and the arbitrary wire turn 5 of coil slip-ring brush 16,17 and wire turn brush 6 are set respectively, output line is drawn from slip-ring brush and wire turn brush respectively.In the present embodiment, the other end of line tube 2 connects firmly gear 7, and gear 7 can be manual, also can be by micro motor for driving.

Referring to Fig. 2, Fig. 3, conducting slip ring 4 by about two semi-rings constitute, between two semi-rings, an end has the space, is 1mm, the other end has at interval, this is at interval greater than brush width 2mm.As shown in the figure, conducting slip ring 4 is by on the online tube 2 of slip ring spider 8 covers.Offer location slotted hole 9 on slip ring spider 8, the corresponding position is provided with the backstay 10 that passes this location slotted hole 9 and connect firmly with line tube 2, and the length of location slotted hole 9 equates with the sliding distance of slide switch moving contact 14.

Referring to Fig. 4, conducting slip ring 4 is by on the online tube 2 of slip ring spider 8 covers, with the line tube 2 of slotted hole 9 corresponding positions, location on, connect firmly backstay 10, backstay 10 passes location slotted hole 9, and slip ring spider 8 is driven by line tube 2 by backstay 9 and rotates, because the setting of location slotted hole 9, between slip ring spider 8 and the line tube 2 slide relative is arranged, it is suitable with slotted hole 9 apertures, location that slip general encloses.Slip-ring brush 16,17 is symmetrically arranged two, and output line is alternately drawn by two brushes.

As shown in the figure, in the gap of conducting slip ring two semi-rings, normally closed touch switch 11 is set, it touches push rod 12 and connects firmly shake-up push rod 12 and relay C3 Driven by Coaxial with transformer bracket.Normally closed touch switch 11 is touched push rod 12 in good time and is answered back to and become open circuit, to guarantee that conducting slip ring 4 is uncovered.

In structure as shown in the figure, slide switch 13 is set, its moving contact 14 connects firmly with slip ring spider 8, the fixed contact 15 and the line tube 2 of two mutually insulateds connect firmly, the output line of coil 3 links to each other with the moving contact of slide switch 14, and two fixed contacts 15 of slide switch are connected with slip ring spider left and right sides semi-ring lead respectively.

Clockwise rotate line tube 2, slide switch moving contact 14 contacts with the left side fixed contact, at this moment, coil end line output signal is drawn at the left semi-ring of conducting slip ring from moving contact 14, fixed contact 15, and left semi-ring is drawn signal or exported on right side slip-ring brush 17 by the right semi-ring of slip ring by 16 outputs of left side slip-ring brush or by normally closed touch switch 11; When rotating counterclockwise line tube 2, slide switch moving contact 14 contacts with the right side fixed contact, at this moment, coil end line output signal is drawn at the right semi-ring of conducting slip ring from moving contact 14, fixed contact 15, and right semi-ring is drawn signal or exported on left side slip-ring brush 16 by the left semi-ring of slip ring by 17 outputs of right side slip-ring brush or by normally closed touch switch 11.In the rotation process of conducting slip ring 360 degree, the transformer output line is alternately drawn on two slip-ring brushes by the in good time action of each relay in the control circuit.

As Fig. 5,6 and shown in Figure 7, the control circuit that is made of touch switch Z1, Z2, Z3, Z4, hand push button switch AN1, motor positive and inverse switch AN2, relay CK1, CK2, DK1, DK2, C1, C2, C3 and each relay contact is set in the present embodiment, push rod 18 is set simultaneously, and push rod 18 connects firmly with line tube 2.In online tube 2 rotation processes, push up in succession by push rod 18 and to arrogate to oneself touch switch Z1, Z2, Z3 and Z4, feasible power supply signal of alternately being drawn by the left and right side sliding brush is exported on end line A by relay contact C1-3, C2-3 and C3-3.

The rotating band moving winding 3 of line tube 2 rotates, and the wire turn brush is slided on wire turn, thereby change the coil turn between output line A, the B, reaches the purpose of pressure regulation.

Claims

1, a kind of stepless voltage regulation transformer, comprise iron core (1) and coil (3), it is characterized in that adopting rotary coil, described rotary coil is to be with rotating line tube (2) on iron core (1), coil winding is on this line tube (2), line tube (2) one ends are provided with worn-out mouthful conducting slip ring (4), and slip-ring brush (16,17) and wire turn brush (6) are set respectively on described conducting slip ring (4) and the arbitrary wire turn of coil (5), and output line is drawn from slip-ring brush and wire turn brush respectively.

2, stepless voltage regulation transformer according to claim 1, it is characterized in that: described conducting slip ring (4) is by on slip ring spider (8) the online tube of cover (2), offer location slotted hole (9) on the slip ring spider (8), the corresponding position is provided with the backstay (10) that passes this location slotted hole (9) and connect firmly with line tube (2); Conducting slip ring (4) is made of left and right sides semi-ring, and between two semi-rings, an end has the space, and the other end is at interval greater than brush width.

3, stepless voltage regulation transformer according to claim 1 is characterized in that: described slip-ring brush (16,17) is symmetrically arranged two, and output line is alternately drawn by two brushes.

4, stepless voltage regulation transformer according to claim 2 is characterized in that: normally closed touch switch (11) and slide switch (13) are set, and described normally closed touch switch (11) is positioned at the two halves ring gap of conducting slip ring (4); The moving contact (14) of slide switch (13) connects firmly with slip ring spider (8), the fixed contact of two mutually insulateds (15) connects firmly with the line tube, the output line of coil (3) links to each other with slide switch moving contact (14), and two fixed contacts (15) of slide switch are connected with slip ring left and right sides semi-ring lead respectively.