CN210444079U

CN210444079U - Watch movement motor

Info

Publication number: CN210444079U
Application number: CN201921652185.9U
Authority: CN
Inventors: 林祥平; 林铨; 王建池
Original assignee: Fuzhou Xiao Shen Long Watch Industry Technology Research Co ltd
Current assignee: Zeng Guangzhen
Priority date: 2019-09-30
Filing date: 2019-09-30
Publication date: 2020-05-01
Anticipated expiration: 2029-09-30

Abstract

The utility model provides a watch movement motor, including inside stator piece, rotor and the coil of motor housing, stator piece magnetic pole control area inner chamber is arranged in to the rotor, the rotor internal fixation has the permanent magnet, and the trompil of fixed rotating shaft is left at the permanent magnet center, permanent magnet external diameter DB =1.54 +/-0.05 mm, and permanent magnet thickness C =0.50 +/-0.08 mm, stator piece magnetic pole control inner chamber diameter DA =2.04 +/-0.05 mm stator piece magnetic pole control inner chamber diameter DA and permanent magnet external diameter DB's the unilateral clearance of cooperation is 0.25 +/-0.10 mm. The utility model discloses size reasonable in design can be fit for the remanence requirement in permanent magnet surface of small-size wrist-watch motor structure, need not very high just can satisfy the wrist-watch motor requirement to the material requirement of permanent magnet, the manufacturing of the permanent magnet of being convenient for.

Description

Watch movement motor

Technical Field

The utility model relates to a watch movement motor.

Background

The movement of the present clock generally has gear drive, the quartz watch is as the driving wheel through the rotor, drive a series of gears to transmit to the rotor wheel, drive to the minute wheel through the gear train, and then to the hour wheel, the rotor assembly is riveted together by rotor wheel and permanent magnet, the external diameter of the magnetite generally does not exceed 1.50, the magnetite thickness does not exceed 0.40, especially under the situation that the overall dimension diameter of the movement of the watch is smaller than phi 21mm, the size of the motor can be smaller, the smaller rotor is difficult to reach sufficient surface remanence, need to change the permanent magnet material often, utilize the high-performance magnetic material to reach the requirement, increase the cost.

Disclosure of Invention

The utility model discloses improve above-mentioned problem, promptly the to-be-solved technical problem of the utility model is to provide a small-size motor structure, the permanent magnet need not to adopt the magnetic material of special high performance, just can guarantee that its surperficial remanence can reach watch movement's requirement.

The utility model discloses a concrete implementation scheme is: the utility model provides a watch movement motor, includes inside stator piece, rotor and the coil of motor housing, the regional inner chamber of stator piece magnetic pole control is arranged in to the rotor, the rotor internal fixation has the permanent magnet, and the trompil of fixed pivot is left at the permanent magnet center, permanent magnet external diameter DB =1.54 +/-0.05 mm, and permanent magnet thickness C =0.50 +/-0.08 mm, stator piece magnetic pole control inner chamber diameter DA =2.04 +/-0.05 mm, stator piece magnetic pole control inner chamber diameter DA and permanent magnet external diameter DB's the unilateral clearance of cooperation is 0.25 +/-0.10 mm.

Further, the outer diameter DB of the permanent magnet is =1.53mm, the thickness C of the permanent magnet is =0.52mm, and the diameter DA of the pole control inner cavity of the stator piece is =2.04 mm.

Compared with the prior art, the utility model discloses following beneficial effect has: the utility model discloses size reasonable in design can be fit for the permanent magnet surface remanence requirement of small-size gear drive clock and watch structure, and the permanent magnet need not to adopt the magnetic material of special high performance, can be fit for the magnetite surface remanence requirement of small-size clock and watch motor structure, and the manufacturing of the permanent magnet of being convenient for, general magnetic material can reach the requirement of little watch movement.

Drawings

Fig. 1 is a schematic view of the motor structure of the present invention.

Fig. 2 is a schematic view of the structure of the rotor assembly (rotor and permanent magnets).

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1-2, a watch movement motor comprises a stator piece 10, a rotor 20 and a coil inside a motor shell, wherein the rotor is arranged in an inner cavity of a stator piece magnetic pole control area, a permanent magnet 210 is fixed in the rotor, the outer diameter DB of the permanent magnet 210 is =1.54 ± 0.05mm, the thickness C of the permanent magnet is =0.50 ± 0.08mm, the diameter DA of the stator piece magnetic pole control inner cavity is =2.04 ± 0.05mm, and the matching unilateral gap between the diameter DA of the stator piece magnetic pole control inner cavity and the outer diameter DB of the permanent magnet is 0.25 ± 0.10 mm.

In the embodiment, the permanent magnet outer diameter DB =1.53mm, the permanent magnet thickness C =0.52mm, and the stator sheet magnetic pole control inner cavity diameter DA =2.04 mm. In this embodiment, the external dimension of the small watch movement is equal to or less than phi 21mm, and the watch movement may be circular, oval, rhombic, or rectangular in shape.

The permanent magnet in this embodiment has an opening at its axis to facilitate riveting in the rotor, and the permanent magnet is riveted in the rotor and then magnetized.

The stator pieces and the coils (including the coil cores) are not limited to the shapes shown in the drawings.

Above collocation can satisfy the work demand in little core motor structure, reduces the consumption, and the torsion of core output can satisfy the action of second minute hand moreover, and concrete technical index is as follows: according to the matching, under the condition that the voltage is 1.50V, the power consumption is less than 2.5 microamperes, the second-axis output torque reaches more than 7 mu Nm, the starting voltage is less than 1.10V, and the standard of a common-grade quartz watch is reached.

The utility model discloses if disclose or related to mutual fixed connection's spare part or structure, then, except that other the note, fixed connection can understand: a detachable fixed connection (for example using bolts or screws) is also understood as: non-detachable fixed connections (e.g. riveting, welding), but of course, fixed connections to each other may also be replaced by one-piece structures (e.g. manufactured integrally using a casting process) (unless it is obviously impossible to use an integral forming process).

In addition, the terms used in any aspect of the present disclosure as described above to indicate positional relationships or shapes include similar, analogous, or approximate states or shapes unless otherwise stated.

The utility model provides an arbitrary part both can be assembled by a plurality of solitary component parts and form, also can be the solitary part that the integrated into one piece technology was made.

Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the same; although the present invention has been described in detail with reference to preferred embodiments, it should be understood by those skilled in the art that: the invention can be modified or equivalent substituted for some technical features; without departing from the spirit of the present invention, it should be understood that the scope of the claims is intended to cover all such modifications and variations.

Claims

1. The utility model provides a watch movement motor, its characterized in that, includes inside stator piece, rotor and the coil of motor housing, the regional inner chamber of stator piece magnetic pole control is arranged in to the rotor, the rotor internal fixation has the permanent magnet, and the trompil of fixed pivot is left at the permanent magnet center, permanent magnet external diameter DB =1.54 +/-0.05 mm, permanent magnet thickness C =0.50 +/-0.08 mm, stator piece magnetic pole control inner chamber diameter DA =2.04 +/-0.05 mm, stator piece magnetic pole control inner chamber diameter DA and permanent magnet external diameter DB's the unilateral clearance of cooperation is 0.25 +/-0.10 mm.

2. A watch movement motor according to claim 1, characterised in that said permanent magnet outer diameter DB =1.53mm, the permanent magnet thickness C =0.52mm and said stator plate pole control bore diameter DA =2.04 mm.