CN2171947Y

CN2171947Y - Linear electric motor

Info

Publication number: CN2171947Y
Application number: CN 93243861
Authority: CN
Inventors: 蒋全碧
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-11-04
Filing date: 1993-11-04
Publication date: 1994-07-13
Anticipated expiration: 2003-11-04

Abstract

The utility model relates to a linear electric motor, which is suitable to match with the curtain rail. The utility model comprises a cylinder-shaped iron-core (1), a cylinder-shaped framework (6), a concentrated winding (3), an end cover (4), a casing (2) and a secondary, wherein, the cylinder-shaped iron-core (1) is made of ordinary iron plate, and the casing and the end cover are both made of non-metallic materials. The utility model has the advantages of simple manufacturing technique, low cost and mass production.

Description

Linear electric motor

The utility model relates to a kind of linear motor, is particularly suitable for and the supporting use of guide bead.

At present, linear motor generally includes: elementary iron core, concentrate winding, garden cylindrical chassis and end cap, secondaryly put a tubular non-magnetic conductor again by ferromagnetism garden steel or outside the steel of ferromagnetism garden and constitute.The linear induction motor of this structure, the requirement on machining accuracy height, thereby cost is bigger, and the garden cylindrical chassis has constituted the eddy current loop, eddy current loss increases, and (notification number: 2101967U) " roll type linear induction motor " adopted garden tubular iron yoke that the skin of and garden tubular concentrated winding unshakable in one's determination in the garden tubular is provided with the band opening that is rolled into by steel plate to cut off its eddy current to Chinese patent, and the air gap of its linear electric motors is bigger in addition, require machining accuracy not high, this its advantage.But above technical scheme is not all considered the characteristics of linear electric motors motion, particularly the time with the supporting use of guide bead, owing to draw the number of times of curtain and time all seldom (to have only every day several times, each needs several seconds), do not need its energy consumption problem of worry about, should pay the utmost attention to and reduce the production cost.

The purpose of this utility model is: provide a kind of manufacture craft simple, and with low cost and can guarantee the linear motor of motor performance.

Design of the present utility model is: its elementary garden tubular iron core (1), garden cylindrical skeleton (6) and concentrated winding (3), end cap (4) and shell (2) of comprising, secondary by garden steel (5) and cover nonmagnetic metal pipe (8) formation thereon, feature is: garden tubular iron core (1) is with a common annular work durm, replaced the iron core that the electromagnetic plate that is superimposed by multilayer in original technology constitutes.Shell (2) and end cap (4) are nonmetallic materials and make, and have saved the interior iron yoke in order to elimination eddy current loss of motor housing in original technology.

The utility model has the advantages that: a, because the utility model notices linear electric motors---particularly window is with the handling characteristics of linear electric motors: the pulling number of times of curtain is few, and the pulling time is very short, need not worry about energy consumption and heating problem, so in the present design, having changed elementary iron core in the past all is the electromagnetic plate constituted modes that happened frequently by multilayer, and replace a common annular work durm, this make linear electric motors in the present design when can satisfying its performance again significantly tube changed manufacture craft, and can significantly reduce its cost, b, end cap of the present utility model (4) and shell (2) are owing to all adopt nonmetallic materials to make and saved the iron yoke in the prior art, reduce part in addition, do not had the problem of eddy current loss simultaneously.

Below in conjunction with accompanying drawing the utility model is further described.

Fig. 1 is a cutaway view of the present utility model.

Fig. 2 is an end view of the present utility model.

With reference to Fig. 1, Fig. 2, the elementary of linear motor concentrated winding (3) (winding (3) is on garden cylindrical skeleton (6)) and the garden tubular iron core made by common garden annular work durm (rolled or directly iron plate is got on the bus out at lathe by iron plate) is nested in the garden cylindrical outer casing (2) at intervals by even number garden tubular, the end cap (4) of the two ends of garden cylindrical outer casing (2) and garden shape is affixed, wherein shell (2) is shaped by plastic processing with end cap (4), and the middle boring ratio garden tubular of end cap concentrates the mesopore of winding and garden tubular iron core (1) smaller, secondary by ferromagnetism garden steel (5) and cover aluminum pipe (8) formation thereon, elementary be enclosed within secondary on, therefore the distance (being the air gap of motor) between the primary and secondary is bigger, make its quality of fit less demanding, be beneficial to processing, go in the annular work durm outer face, garden at elementary two ends by three screws (7) pin that passes on the end cap (4) at last, hold out against elementary.

Claims

1, a kind of linear motor, its elementary garden tubular iron core (1), garden cylindrical skeleton (6) and concentrated winding (3), end cap (4) and shell (2) of comprising, secondaryly constitute by garden steel (5) and the nonmagnetic metal pipe (8) that is placed on the garden steel (5), it is characterized in that: garden tubular iron core (1) is to be made of annular work durm, and shell (2) and end cap (4) are nonmetallic materials and make.