CN211046723U

CN211046723U - DC permanent-magnet coreless linear motor

Info

Publication number: CN211046723U
Application number: CN201921604584.8U
Authority: CN
Inventors: 赖敏聪
Original assignee: Shenzhen Pinxin Motor Co ltd
Current assignee: Shenzhen Pinxin Motor Co ltd
Priority date: 2019-09-25
Filing date: 2019-09-25
Publication date: 2020-07-17
Anticipated expiration: 2029-09-25

Abstract

The utility model discloses a direct current permanent magnetism coreless linear electric motor, including pipy casing, install the line frame in the casing, install first coil on the first section of line frame, install the second coil on the second section of line frame, the winding direction of first coil and the winding direction of second coil are opposite, install sliding fit's active cell magnetite with it in the line frame, the cross axle is transversely installed at the preceding terminal surface center of active cell magnetite, the front end housing is installed to the front end of casing, and first buffering magnetite is installed at the back of front end housing, the shaping has the preceding and the hou mian round hole of running through the front end housing in the middle of the front end housing, and the cross axle passes the round hole, the rear end housing is installed to the rear end of casing, and the front mounted of rear end housing has the second buffering.

Description

DC permanent-magnet coreless linear motor

Technical Field

The utility model belongs to the technical field of the motor and specifically relates to a direct current permanent magnetism coreless linear electric motor.

Background

The retractable adult product, the massager and the like in the market are applied to the traditional rotating motor with gear transmission and then are mechanically converted to obtain the reciprocating retractable effect, the retractable frequency of the structural form is low, the retractable speed is low, the mechanical noise generated in the gear transmission and mechanical conversion process is large, and particularly the impact force is lacked in the structural form that the rotating motor with gear transmission and then is mechanically converted when the rotating motor is applied to the adult product.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an it is not enough to overcome above-mentioned condition, provides direct current permanent magnetism coreless linear electric motor, including pipy casing, install the line frame in the casing, install first coil on the first section of line frame, install the second coil on the second section of line frame, the winding direction of first coil is opposite with the winding direction of second coil, install sliding fit's active cell magnetite with it in the line frame, the cross axle is transversely installed at the preceding terminal surface center of active cell magnetite, the front end housing is installed to the front end of casing, and first buffering magnetite is installed at the back of front end housing, the shaping has the preceding and hou mian round hole of running through the front end housing in the middle of the front end housing, and the round hole is passed to the cross axle, the rear end housing is installed to the rear end of casing, and the front.

Furthermore, a wire hole is formed in the rear end cover, a wire is arranged in the wire hole, and the first coil and the second coil are respectively and electrically connected with the wire.

Furthermore, the north pole of the first buffer magnet is arranged towards the direction of the first coil, the south pole of the second buffer magnet is arranged towards the direction of the second coil, and the south pole of the mover magnet is arranged at one end connected with the transverse shaft.

Furthermore, a bearing is installed in the circular hole, and the transverse shaft penetrates through the bearing in the circular hole and is in sliding fit with the bearing.

Further, the magnetism of the first buffer magnet and the magnetism of the second buffer magnet are low.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model has novel structure, the whole motor does not adopt the silicon steel sheet used by the traditional motor, the cost of the raw material of the motor can be effectively reduced, the motor without the silicon steel sheet (the motor without the iron core) has faster response speed than the traditional iron core motor, and the motor runs more stably without the constraint of magnetic pull force, so that the expansion frequency of the motor is higher during working; the buffering magnets are arranged on the inner sides of the front end cover and the rear end cover and form magnetic suspension buffering with the rotor magnets, mechanical noise caused by rotor impact when the rotor moves linearly can be completely avoided by means of magnetic suspension buffering, the number of parts of the whole motor is small, the structure of each part is simple, the production process is simple, the matching precision is easy to control, and the manufacturing cost can be effectively reduced.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is another schematic structural diagram of the present invention.

Wherein: 1. the magnetic driving device comprises a transverse shaft, 2 a mover magnet, 3 a front end cover, 4 a bearing, 5 a first buffer magnet, 6 a shell, 7 a wire frame, 8 a first coil, 9 a rear end cover, 10 a lead, 11 a second buffer magnet, 12 a second coil.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it should be understood that the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 and 2, in an embodiment of the present invention, a dc permanent magnet coreless linear motor includes a tubular casing 6, a bobbin 7 is installed in the casing 6, a first coil 8 is installed on a first section of the bobbin 7, a second coil 12 is installed on a second section of the bobbin 7, a winding direction of the first coil 8 is opposite to a winding direction of the second coil 12, a mover magnet 2 slidably fitted with the bobbin 7 is installed in the bobbin 7, a cross shaft 1 is transversely installed at a center of a front end face of the mover magnet 2, a front end cover 3 is installed at a front end of the casing 6, a first buffer magnet 5 is installed at a rear face of the front end cover 3, a circular hole penetrating through a front face and a rear face of the front end cover 3 is formed in the middle of the front end cover 3, the cross shaft 1 penetrates through the circular hole, a rear end cover 9 is installed at a rear end of the casing 6, and a second buffer.

Furthermore, a wire hole is formed in the rear end cover 9, a wire 10 is arranged in the wire hole, and the first coil 8 and the second coil 12 are electrically connected with the wire 10 respectively.

Furthermore, the north pole of the first buffer magnet 5 is arranged towards the direction of the first coil 8, the south pole of the second buffer magnet 11 is arranged towards the direction of the second coil 12, and the south pole of the mover magnet 2 is arranged at one end connected with the transverse shaft 1.

Furthermore, a bearing 4 is arranged in the circular hole, and the transverse shaft 1 penetrates through the bearing 4 in the circular hole and is in sliding fit with the circular hole.

Further, the first buffer magnet 5 and the second buffer magnet 11 have low magnetism.

The south pole and the north pole of the magnetic field are continuously changed by changing the current direction of the first coil 8 and the second coil 12, the rotor magnet 2 in the coil holder 7 is made to do linear reciprocating motion by utilizing the principle that the like poles of the magnetic field repel each other and the unlike poles attract each other, and the first buffer magnet 5 and the second buffer magnet 11 can start the buffer effect because the north pole of the first buffer magnet 5 and the south pole of the rotor magnet 2 are opposite in magnetism and the south pole of the second buffer magnet 11 and the north pole of the rotor magnet 2 are opposite in magnetism.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Claims

1. Direct current permanent magnetism coreless linear electric motor, including pipy casing, its characterized in that: install the line frame in the casing, install first coil on the first section of line frame, install the second coil on the second section of line frame, the winding direction of first coil is opposite with the winding direction of second coil, install sliding fit's active cell magnetite with it in the line frame, the cross axle is transversely installed at the preceding terminal surface center of active cell magnetite, the front end housing is installed to the front end of casing, and first buffering magnetite is installed at the back of front end housing, the shaping has the round hole that runs through the front of front end housing and back in the middle of the front end housing, and the round hole is passed to the cross axle, the rear end housing is installed to the rear end of casing, and the front mounted of rear end housing has the second buffering magnetite.

2. The direct current permanent magnet coreless linear motor of claim 1, wherein: the rear end cover is provided with a wire hole, a wire is arranged in the wire hole, and the first coil and the second coil are respectively and electrically connected with the wire.

3. The direct current permanent magnet coreless linear motor of claim 1, wherein: the north pole of first buffering magnetite sets up towards the direction of first coil, the south pole of second buffering magnetite sets up towards the direction of second coil, the one end at the connection cross axle of south pole of active cell magnetite.

4. The direct current permanent magnet coreless linear motor of claim 1, wherein: the round hole is internally provided with a bearing, and the cross shaft passes through the bearing in the round hole and is in sliding fit with the bearing.