CN203617860U

CN203617860U - Error-proofing apparatus for installing rotor magnet of brushless DC (direct current) motor

Info

Publication number: CN203617860U
Application number: CN201320821536.0U
Authority: CN
Inventors: 韩勇; 王旭
Original assignee: TIANJIN BATERY MACHINERY AUTOMATION TECHNOLOGY Co Ltd
Current assignee: TIANJIN BATERY MACHINERY AUTOMATION TECHNOLOGY Co Ltd
Priority date: 2013-12-11
Filing date: 2013-12-11
Publication date: 2014-05-28
Anticipated expiration: 2023-12-11

Abstract

The utility model relates to an error-proofing apparatus for installing rotor magnets of a brushless DC (direct current) motor. The error-proofing apparatus comprises a magnet guiding plate. A lower part of the magnet guiding plate is inserted into an installation of a pressure plate. A transverse rack is disposed on the right side of the guiding plate. Rotor magnets which are arranged in the magnetic polar direction are disposed on the transverse rack. A push rod is inserted in an upper part of the guiding plate. A cross beam is fixedly disposed on an upper part of the push rod. A connecting block is fixedly disposed behind the cross beam. An electric cylinder is fixedly disposed at the top end of the connecting block. A vertical plate is fixedly disposed side by side with the guiding plate on the left side of the guiding plate. A lower part of the vertical plate is inserted in an installation hole of the pressure plate. A groove is disposed in an end face of the vertical plate, the vertical plate is in contact with the guiding plate on the end face. An error-proofing magnet is disposed in the groove. The error-proofing apparatus is designed according to the polarity of the magnet, and thus failure of the rotor to run normally due to erroneous manual placement of magnets is prevented.

Description

A kind of error prevention device of installing for brushless DC motor rotor magnet

Technical field

The utility model belongs to brshless DC motor field, relates to the installation of magnet in brushless DC motor rotor, especially a kind of error prevention device of installing for brushless DC motor rotor magnet.

Background technology

The rotor of brshless DC motor is embedded in iron core surface or is embedded core interior by the permanent magnet of certain number of pole-pairs and forms.Permanent magnet adopts the high-coercive forces such as neodymium iron boron more, and the rare earth permanent-magnetic material of high remanent induction density is made.Rotor structure surperficial adhesive type magnetic pole, again the title watt shape magnetic poles of adopting of brshless DC motor more.Surface adhesive type magnetic pole pastes the tile rare-earth permanent magnet of radial magnetizing in core exterior surface, appropriate design just can obtain the air gap flux density of square wave form.

On general rotor, inlay 2 to 8 pairs of magnetic poles, south magnetic pole and north magnetic pole alternative arrangements.Assembler often can be hard to tell the direction of south poles in the time of assembling, causes magnet in the epitrochanterian wrong consequence of arranging.

Utility model content

The purpose of this utility model is to overcome the deficiencies in the prior art part, provides a kind of simple in structure, the error prevention device that design is installed for brushless DC motor rotor magnet cleverly.

The technical scheme that the utility model technical solution problem adopts is:

A kind of error prevention device of installing for brushless DC motor rotor magnet, comprise magnet guide plate, insert in the installing hole of platen the bottom of magnet guide plate, on the right side of guide plate, one crossbearer is installed, the rotor magnet of arranging by pole orientation is housed on crossbearer, be fitted with a push rod on the top of guide plate, top at push rod is fixedly mounted with crossbeam, rear at crossbeam is fixedly mounted with contiguous block, be fixedly mounted with electric cylinder on the top of contiguous block, left side and guide plate at guide plate are fixed with a riser side by side, insert in the installing hole of platen the bottom of riser, on the end face contacting with guide plate at riser, be shaped with a groove, error correction magnet is installed in groove.

And, be shaped with a vertical passage in the left side of magnet guide plate, be shaped with a square groove in the middle and upper part, right side of magnet guide plate, square groove is communicated with vertical passage.

And described crossbearer is arranged on the guide plate on square groove right side.

And the groove on described riser is corresponding with the square groove position on guide plate.

Advantage of the present utility model and good effect are:

1, this error prevention device is according to magnet homopolar-repulsion, and the principle design that heteropole is inhaled mutually forms, and error correction magnet is installed in riser, when rotor magnet near time, if direction is put correctly, can enter smoothly in the passage of guide plate; Once direction is put mistake, will be repelled by error correction magnet.Operator is very easy to find mistake, corrects immediately, avoids rotor loading error.

2, this error prevention device novel structure, designs ingeniously, in order to coordinate the installation of error correction magnet, the internal structure of platen and guide plate has also been done to corresponding adjustment, makes its overall structure compacter, has more practicality.

Accompanying drawing explanation

Fig. 1 is front view of the present utility model

Fig. 2 is the right view of Fig. 1

Fig. 3 is the left view of Fig. 1

Fig. 4 is that the A-A of Fig. 1 is to cross section cutaway view Amplified image

Fig. 5 is the perspective view of the utility model error correction magnet mounting panel

Fig. 6 is the perspective view that the utility model rotor magnet imports plate

Embodiment:

Below in conjunction with accompanying drawing and by specific embodiment, the utility model is described in further detail, and following examples are descriptive, are not determinate, can not limit protection range of the present utility model with this.

A kind of error prevention device of installing for brushless DC motor rotor magnet, comprise magnet guide plate 5, insert in the installing hole of platen 8 bottom of magnet guide plate, be shaped with a vertical passage 11 in the left side of magnet guide plate, be shaped with a square groove 12 in the middle and upper part, right side of magnet guide plate, square groove is communicated with vertical passage.One crossbearer 6 is installed on the guide plate on square groove right side, the rotor magnet 9 of arranging by pole orientation is housed on crossbearer.In the passage on guide plate top, be fitted with a push rod 4, be fixedly mounted with crossbeam 3 on the top of push rod, be fixedly mounted with contiguous block 2 at the rear of crossbeam, be fixedly mounted with electric cylinder 1 on the top of contiguous block.

Left side and guide plate at guide plate are fixed with a riser 7 side by side, and insert in the installing hole of platen the bottom of riser.On the end face of riser and guide plate contact, be shaped with one with the square groove position of guide plate corresponding groove, error correction magnet 10 is installed in groove.

The operation principle of this device is: electric cylinder drive push rod by rotor magnet the passage in importing plate and the installing hole on platen shift onto on rotor.The effect that error correction magnet is installed is to prevent that the direction of rotor magnet pendulum is wrong, and in the time that rotor magnet is consistent with error correction magnet direction, because heteropole is inhaled mutually, rotor magnet is inhaled into passage; If contrary direction is inconsistent, homopolar-repulsion so, rotor magnet just cannot admission passage in.Can remind like this anisotropy of operator's magnet, correct in time.

Claims

1. an error prevention device of installing for brushless DC motor rotor magnet, comprise magnet guide plate, insert in the installing hole of platen the bottom of magnet guide plate, on the right side of guide plate, one crossbearer is installed, the rotor magnet of arranging by pole orientation is housed on crossbearer, be fitted with a push rod on the top of guide plate, top at push rod is fixedly mounted with crossbeam, rear at crossbeam is fixedly mounted with contiguous block, be fixedly mounted with electric cylinder on the top of contiguous block, it is characterized in that: left side and guide plate at guide plate are fixed with a riser side by side, insert in the installing hole of platen the bottom of riser, on the end face contacting with guide plate at riser, be shaped with a groove, error correction magnet is installed in groove.

2. the error prevention device of installing for brushless DC motor rotor magnet according to claim 1, it is characterized in that: be shaped with a vertical passage in the left side of magnet guide plate, middle and upper part, right side at magnet guide plate is shaped with a square groove, and square groove is communicated with vertical passage.

3. the error prevention device of installing for brushless DC motor rotor magnet according to claim 2, is characterized in that: described crossbearer is arranged on the guide plate on square groove right side.

4. the error prevention device of installing for brushless DC motor rotor magnet according to claim 2, is characterized in that: the groove on described riser is corresponding with the square groove position on guide plate.