CN2611115Y

CN2611115Y - Electromagnetic type clippers

Info

Publication number: CN2611115Y
Application number: CN 03231042
Authority: CN
Inventors: 张炳昆
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-05-09
Filing date: 2003-05-09
Publication date: 2004-04-14
Anticipated expiration: 2013-05-09

Abstract

An electromagnetic electric clipper is an improvement on the basis of a prior magnet core, a coil and an armature angle fitting, or the like. The armature angle fitting can rotate around an axle on the lower portion thereof, the lower end face of the armature angle fitting is provided with a convex arc face with the axial center of the axle as the circle center, the end face of the magnet core corresponding to the convex arc face is provided with a concave arc face which has the axial center of the axle as the circle center and matches the convex arc face. With the above structure, the lower gap of the armature angle fitting keeps unchanged when the armature angle fitting is vibrating. And the lower gap can be made very small, thereby the utility model is small in magnetic leakage, big in magnetic flux and low in temperature rise, based on which the number of turns of the coil can be decreased and wires with a large section can be used to wind the coil. In this way, the power and the shearing force of the coil are improved, the temperature rise of the coil keeps unchanged, and simultaneously an arm-shape elastic support is not needed, which makes the utility model easy to assemble, low in costs, small in size and propitious for users to hold.

Description

A kind of electromagnetic type electric hair cutter

Technical field

The utility model relates to a kind of haircut appliance, especially refers to a kind of electromagnetic type electric hair cutter.

Background technology

Existing electromagnetic type electric hair cutter generally comprises the electromagnet core that is positioned at the electric hair cutter housing, coil, arm shape elastic support, be fixed on armature elbow and left and right sides spring on the arm shape elastic support, front end at the electric hair cutter housing is fixed with ledger-plate, the cutting blade relative with ledger-plate is fixed on the armature elbow, and be provided with on the armature elbow with corresponding two of electromagnet core end face on, the lower surface, when being connected with alternating current in the coil, it produces alternating magnetic field, electromagnet core is attracted continuously, decontrol the armature elbow, under the cooperation of left and right sides spring, arm shape elastic support is a fulcrum with its lower end, and the cutting blade that drives on the armature elbow is reciprocating to cut off hair along ledger-plate.But in use find, because electric and magnetic oscillation mainly relies on gap magnetic flux between armature elbow end face and electromagnet core end face to come work, and adopt the lower end of arm shape elastic support is that fulcrum is reciprocating, make in motion process, on the armature elbow, gap between lower surface and the electromagnet core is variable, and the gap between the two is bigger, finally make the armature elbow on, produce bigger leakage field between lower surface and the electromagnet core, and make whole magnetic circuit near the state of opening a way, therefore, adopt the electric hair cutter of said structure, can't improve its electromagnetic power, thereby influenced the shearing force of electric hair cutter, limited the raising of electric hair cutter performance.And, then certainly will increase its magnetic flux with the number of turn that increases coil in order to make electric hair cutter that bigger shearing force can be arranged, and but adopt such design, the temperature rise that can improve coil on the one hand also can increase the volume of electric hair cutter on the other hand, improves its manufacturing cost.In addition, also adopted arm shape elastic support just, made to use the corresponding increase of profile of electric hair cutter light inadequately.

Summary of the invention

Technical problem to be solved in the utility model is the defective that overcomes prior art, and the electromagnetic type that a kind of magnetic Circuit Design is reasonable, shearing force is big and cost is low electric hair cutter is provided.

The utility model solves the problems of the technologies described above the technical scheme that is adopted: this electromagnetic type electric hair cutter comprises the electromagnet core that is positioned at housing, coil, an armature elbow and a left side, right spring, described housing front end is fixed with ledger-plate, the cutting blade relative with described ledger-plate links to each other with the upper end of armature elbow, a described left side, right spring lays respectively at the both sides of cutting blade below and regulates its amplitude, described armature elbow be provided with the electromagnet core end face corresponding on, lower surface and between the two, forming, following gap, it is characterized in that: described armature elbow can rotate around the pivot that is positioned at its lower end, it is the outer gibbosity arc surface in the center of circle that described armature elbow lower surface has with described pivot axis, and then having with described pivot axis with the corresponding electromagnet core end face of described outer gibbosity arc surface is the center of circle, the inner concavity arc surface that matches with the outer gibbosity arc surface.

Following gap between described outer gibbosity arc surface and the inner concavity arc surface can be 0.01mm～0.5mm.

Compared with prior art, advantage of the present utility model is: because down the gap is to form between the inner concavity arc surface by the outer gibbosity arc surface of armature elbow and electromagnet core, and the two all is the center of circle with the pivot axis, so, in armature elbow vibration processes, following gap remains invariant state, but also it can be reduced to existing gap 1%～3% between, therefore, adopt the electric hair cutter leakage field of said structure little, magnetic flux is big, temperature rise is low, can reduce the number of turn of coil on this basis, under the window area of same electromagnet core, use the big line of sectional area instead and come coiling, so not only can make power bring up to nearly one times, to increase electromagnetic attraction, improve its shearing force, and the temperature rise of coil remains unchanged still; Simultaneously, owing to no longer adopt arm shape elastic support, make assembling simple, cost is low, makes that also the profile of electric hair cutter is small and exquisite, more helps user's gripping.

Description of drawings

Fig. 1 is a structural representation of the present utility model (after removing cover plate);

Fig. 2 is the partial schematic diagram among Fig. 1;

Fig. 3 looks schematic diagram for the right side of Fig. 2.

The specific embodiment

Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.

As shown in Figure 1 to Figure 3, this electromagnetic type electric hair cutter comprises electromagnet core 6, coil 7, armature elbow 8 and the left and right spring 4,5 that is positioned at housing 1, and the lead-out wire of coil 7 links to each other with power line by junction block, and switch series is connected in the circuit; Described housing 1 front end is fixed with ledger-plate 2, the cutting blade 3 relative with ledger-plate 2 links to each other with the upper end of armature elbow 8, left and right spring 4,5 lays respectively at the linking arm both sides between cutting blade 3 and armature elbow 8 upper surfaces 81, with regulate cutting blade 3 amplitude; Described armature elbow 8 is made up of the multi-disc silicon steel sheet and is formed, and is provided with thereon and the corresponding upper and

lower end face

81,82 of electromagnet core 6 end faces and form upper and lower gap between the two; One pivot 9 is fixed on housing 1 inwall, and oiliness bearing 10 is installed outside it, the lower end of armature elbow 8 is placed in outside this bearing 9, make armature elbow 8 to rotate around this pivot 9, it is the outer gibbosity arc surface in the center of circle that the lower surface 82 of armature elbow has with this pivot 9 axle center, the inner concavity arc surface that to be provided with these pivot 9 axle center with 61 of the corresponding electromagnet core end faces of described outer gibbosity arc surface be the center of circle, match with the outer gibbosity arc surface, in the present embodiment, the following gap that forms between outer gibbosity arc surface and the inner concavity arc surface 61 is very little, is 0.01mm only.

When pressing switch, when being connected with AC power in the coil 7, coil 7 produces alternating magnetic field, make electromagnet core 6 attract, decontrol the upper surface 81 of armature elbow 8 continuously, under the cooperation of left and right spring 4,5, armature elbow 8 is that fulcrum rotates with the pivot 9 of its lower end, and the cutting blade 3 that drives on the armature elbow 8 is reciprocating along ledger-plate 2, to reach the purpose of cutting off hair.

Claims

1, a kind of electromagnetic type electric hair cutter, it comprises the electromagnet core (6) that is positioned at housing (1), coil (7), an armature elbow (8) and a left side, right spring (4), (5), described housing (1) front end is fixed with ledger-plate (2), the cutting blade (3) relative with described ledger-plate (2) links to each other with the upper end of armature elbow (8), a described left side, right spring (4), (5) lay respectively at the both sides of cutting blade (3) below and regulate its amplitude, described armature elbow (8) be provided with electromagnet core (6) end face corresponding on, lower surface (81), (82) on forming and between the two, following gap, it is characterized in that: described armature elbow (8) can rotate around the pivot that is positioned at its lower end (9), it is the outer gibbosity arc surface in the center of circle that described armature elbow (8) lower surface (82) has with described pivot (9) axle center, and then having with described pivot (9) axle center with the corresponding electromagnet core of described outer gibbosity arc surface (6) end face is the center of circle, the inner concavity arc surface (61) that matches with the outer gibbosity arc surface.

2, electromagnetic type electric hair cutter according to claim 1 is characterized in that the following gap that forms between described outer gibbosity arc surface and the inner concavity arc surface (61) is 0.01mm～0.5mm.