CN2483885Y

CN2483885Y - Balance ring device for motor

Info

Publication number: CN2483885Y
Application number: CN 01223441
Authority: CN
Inventors: 洪银树; 洪庆升
Original assignee: Sunonwealth Electric Machine Industry Co Ltd
Current assignee: Sunonwealth Electric Machine Industry Co Ltd
Priority date: 2001-05-15
Filing date: 2001-05-15
Publication date: 2002-03-27
Anticipated expiration: 2011-05-15

Abstract

The utility model relates to a balance ring device of a motor, which is combined with a stator seat by the motor through a base plate, the stator seat is provided with a shaft hole which is pivoted with a rotating shaft of a rotor, the rotor is provided with an annular permanent magnet, and the base plate is combined with a balance ring. Thus, the optimal positioning and balancing effect is achieved.

Description

The gimbal device of motor

The utility model relates to a kind of gimbal device of motor, especially at the rotor of motor when rotated, can produce the gimbal of balance location and drop-down strength to this rotor.

The Taiwan patent gazette is announced " stable equilibrium's magnet absorbing plate " patent case the 42249 No. three, it discloses a kind of design that can promote the fan rotary balance, on the pedestal of the sheathed blade of housing of fan, the magnet positions of being located at blade interior relatively is provided with a magnet absorbing plate, the magnetic force of energy induced magnet, can be drop-down when making blade rotation by this induced magnetism, and the balanced action with the blade rotation kept.

In addition, the 42136 No. nine " Brushless DC motor balancing patch location and pole piece structure thereof " patent case of the accurate bulletin in applicant institute Shen, then the one pole piece is extended with pin, pin is supported a ring body, ring body forms parallel with the pole piece plane and on non-same plane, the annular permanent magnnet of rotor forms with this ring body and do not contact and corresponding suction mutually.

Press, the annular end face of magnet absorbing plate, pole piece plane and permanent magnet that this two patents case is disclosed is done to inhale magnetic action, because the suction magnetic surface of the permanent magnet of this magnet absorbing plate, pole piece plane and rotor is limited, therefore, when this rotor rotation, its balance and locating effect are not attained ideal yet.

The purpose of this utility model is to provide a kind of gimbal device of motor, between the permanent magnet of this gimbal and rotor, has bigger corresponding suction magnetic surface and amasss, and therefore, makes this rotor when rotated, and best location and counterbalance effect are arranged.

The purpose of this utility model is achieved in that a kind of gimbal device of motor, is combined with stator seat with a substrate by motor, and this stator seat has the rotation axis hinge joint of axis hole and rotor, and rotor has an annular permanent magnnet, and this substrate is combined with a gimbal; It is characterized in that: the ringwall of at least one setting of gimbal tool, inhale mutually with the end section of permanent magnet is corresponding by this ringwall.

This substrate is provided with location hole, and gimbal has drawing piece, by this drawing piece inlay card in this location hole.

This permanent magnet protrudes the wheel hub at rotor, and ringwall is looped around the permanent magnet outside.

This ringwall corral is in the inboard of permanent magnet.

This gimbal has a base ring in addition, and the bottom face of this base ring and permanent magnet is corresponding to be inhaled mutually.

The base ring of this gimbal is connected in the ringwall bottom and becomes vertical mutually.

The base ring of this gimbal is provided with drawing piece, and this drawing piece inlay card is in the location hole of substrate.

This gimbal has two ringwalls of erectting, and this two ringwalls while corral is in the interior outside of annular permanent magnnet.

Be provided with a base ring that connects between this two ringwall, this base ring correspondence is provided with location hole at the bottom face of annular permanent magnnet, and this gimbal has drawing piece, by this drawing piece inlay card in this location hole.

This gimbal has a base ring in addition, and this base ring bottom is provided with drawing piece, and this drawing piece inlay card is in the location hole of substrate.

Owing to adopt such scheme: have best location and counterbalance effect.

See also appended graphicly, the utility model lifted the following example explanation:

Fig. 1 the utility model first preferred embodiment exploded perspective view.

Fig. 2 the utility model first preferred embodiment combination section.

Fig. 3 the utility model second preferred embodiment combination section.

Fig. 4 the utility model the 3rd preferred embodiment combination section.

Fig. 5 the utility model the 4th preferred embodiment combination section.

Fig. 6 the utility model the 5th preferred embodiment exploded perspective view.

Fig. 7 the utility model the 5th preferred embodiment combination section.

Please read shown in Fig. 1,2, its utility model first preferred embodiment is made of motor 1, gimbal 2.

Motor 1 can be known structure, it is provided with axle bed 11 by a substrate 10, for stator seat 12 combinations, this substrate 10 can be provided with the electronic component (figure does not illustrate) of CD-ROM drive motor rotation, stator seat 12 has an axis hole 13, and for the rotation axis 15 pivot joint rotations of rotor 14, rotor 14 has permanent magnet 16 and is looped around around the pole piece 17 of stator seat 12, in the middle of preferred embodiment, the wheel hub root edge that this permanent magnet 16 protrudes at rotor 14.

Gimbal 2 is made by producing the material of inhaling mutually with permanent magnet 16, this gimbal 2 is fixed on substrate 10, in the middle of this preferred embodiment, be provided with location hole 18 by substrate 10, drawing piece 21 inlay cards for gimbal 2, and more can gimbal 2 be securely fixed on the substrate 10 these drawing piece 21 bendings.Gimbal 2 has the ringwall 22 that a ring is erect, and in the middle of present embodiment, this gimbal 2 is extended with base ring 23 by ringwall 22 bottoms to center of circle direction, and ringwall 22 is mutually vertical the best with base ring 23.

Please read shown in Figure 2, when rotor 14 is articulated in the axis hole 13 of stator seat 12 by rotation axis 15, the ringwall 22 of this gimbal 2 is looped around permanent magnet 16 outsides, and by the bottom face of base ring 23 correspondences at permanent magnet 16, therefore, this rotor 14 when rotated, ringwall 22 by gimbal 2 is inhaled with the permanent magnet 16 of rotor 14 respectively mutually with base ring 23, therefore, it is long-pending that the two has the bigger magnetic surface of suction mutually, and this rotor 14 when rotated, because these ringwall 22 correspondences are at permanent magnet 16 downsides of this rotor 14, and this permanent magnet 16 has the suction mutually from 23 2 directions of ringwall 22 and base ring, and therefore, the rotation of this rotor 14 can obtain to locate and be balanced the preferable steady rotate effect that pulls down.

Please read shown in Figure 3, this creates second preferred embodiment, this gimbal 3 can be by the location hole 18 of its drawing piece 31 inlay cards at substrate 10, gimbal 3 has the ringwall 32 of setting, these ringwall 32 corrals are in the interior ring side of permanent magnet 16, and the ringwall 32 of this gimbal 3 is towards being extended with base ring 33 away from center of circle direction, base ring 33 correspondences are at the bottom face of permanent magnet 16, and in the middle of preferred embodiment, this ringwall 32 is vertical mutually with 33 one-tenth of base rings, and therefore, this rotor 14 when rotated, because ringwall 32 correspondence rings are trapped among between the interior ring side of permanent magnet 16, and gimbal 3 has base ring 33, therefore, inhaled mutually with the permanent magnet 16 of rotor 14 is corresponding respectively by the ringwall 32 of gimbal 3 and base ring 33, it is long-pending that the two has the bigger magnetic surface of suction mutually, and this rotor 14 when rotated, also because have from the suction of ringwall 32 with 33 2 directions of base ring, therefore, preferred positioning can be arranged and be balanced during these rotor 14 rotations to pull down, make this rotor 14 obtain best balance rotating effect.

Please read shown in Figure 4, this gimbal 4 can be by the location hole 18 of its drawing piece 41 inlay cards at substrate 10, gimbal 4 has the ringwall 42 of setting, these ringwall 42 corrals are in permanent magnet 16 outsides that protrude from rotor 14 wheel hubs bottom, make this rotor 14 when rotated, inhale mutually with the permanent magnet 16 of rotor 14, during these rotor 14 rotations by the ringwall 42 of gimbal 4, can be balanced the location and can not be offset and rock, make this rotor 14 obtain preferable balance rotating effect.

Please read shown in Figure 5, this gimbal 6 can be by the location hole 18 of its drawing piece 61 inlay cards at substrate 10, gimbal 6 has the ringwall 62 of setting, these ringwall 62 corrals are in permanent magnet 16 inboards of rotor 14 wheel hubs bottom, therefore, this rotor 14 is inhaled with the permanent magnet 16 of rotor 14 mutually by the ringwall 62 of gimbal 6 when rotated, can be balanced during 14 rotations of this rotor and decide receipts and can not be offset and rock, make this rotor 14 obtain preferable balance rotating effect.

Please read shown in Figure 6, this gimbal 5 can be by the location hole 18 of its drawing piece 51 inlay cards at substrate 10, and this gimbal 5 has two ringwalls of erectting 52, and the base ring 53 that is connected two ringwalls, 52 bottoms, this two ringwall 52 is permanent magnet 16 medial and lateral of corral bottom rotor 14 wheel hubs respectively, and these base ring 53 correspondences are at the bottom face of permanent magnet 16, and in the middle of preferred embodiment, this ringwall 52 is vertical mutually comparatively suitable with 53 one-tenth of base rings.

Please read shown in Figure 7, when this gimbal 5 is fixed on substrate 10, and when rotor 14 is planted the axis hole 13 that is connected on stator seat 12, permanent magnet 16 bottoms of this rotor 14 just the position between two ringwalls 52 of gimbal 5, therefore, this rotor 14 when rotated, in the permanent magnet 16 by two ringwalls 52 of gimbal 5 and rotor 14, inhale mutually in the outside, and this base ring 53 also can produce the induction of inhaling mutually with the bottom face of permanent magnet 16, therefore, permanent magnet 16 has the maximum area of suction mutually with 5 of gimbals, and this rotor 14 when rotated, because in the corresponding permanent magnet 16 of these two ringwalls, 52 difference, the outside, and the bottom face that this gimbal 5 has base ring 53 and a permanent magnet 16 produces the magnetic induction of inhaling mutually, during these rotor 14 rotations, can be balanced to pull down and can not be offset and rock, make this rotor 14 obtain preferable balance rotating effect.

Gimbal device of the present utility model, have the ringwall of setting can be corresponding at inboard or the outside and the bottom face of the Lower Half of permanent magnet, or simultaneously at the interior outside and bottom face, therefore, have outside the bigger area of suction mutually between this gimbal and permanent magnet, and can make this rotor when rotated, have can not be offset and rock and produce simultaneously the downward suction of balance, make this rotor can obtain best balance rotating effect.

The utility model can not depart under the main spirit and feature, implements with other different form.Therefore, above-mentioned preferred embodiment is just enumerated by way of example, and it should be considered as restriction of the present utility model.Protection range of the present utility model is defined by claim, but not is defined by the content of specification.The variation or the modification that belong to the equivalence of claim all will fall within protection range originally.

Claims

1. A balance ring device for a motor, the motor is combined with a base plate and a stator base, the stator base has a shaft hole pivotally connected with the rotating shaft of the rotor, the rotor has an annular permanent magnet, and the base plate is combined with a balance ring; its features In that: the balance ring has at least one vertical ring wall, and the ring wall is correspondingly attracted to the bottom section of the permanent magnet.

2. The balance ring device of the motor according to claim 1, wherein the base plate is provided with a positioning hole, and the balance ring has a locking piece, and the locking piece is embedded in the positioning hole.

3. The balance ring device of the motor according to claim 1, wherein the permanent magnet protrudes from the hub of the rotor, and the ring wall surrounds the outer side of the permanent magnet.

4. The balance ring device of the motor according to claim 1, wherein the ring wall surrounds the inner side of the permanent magnet.

5. The balance ring device of the motor according to claim 1, wherein the balance ring further has a bottom ring, and the bottom ring is correspondingly attracted to the bottom end surface of the permanent magnet.

6. The gimbal device of the motor according to claim 5, wherein the bottom ring of the gimbal is connected to the bottom of the ring wall and is perpendicular to each other.

7. The gimbal device of the motor according to claim 5, wherein the bottom ring of the gimbal is provided with a locking piece, and the locking piece is embedded in the positioning hole of the base plate.

8. The balance ring device of the motor according to claim 1, characterized in that: the balance ring has two vertical ring walls, and the two ring walls surround the inner and outer sides of the annular permanent magnet at the same time.

9. According to the balance ring device of the motor described in claims 1 and 8, it is characterized in that: a connected bottom ring is provided between the two ring walls, and the bottom ring is correspondingly provided with a positioning hole on the bottom end surface of the ring-shaped permanent magnet. The ring has a locking piece, and the locking piece is embedded in the positioning hole.

10. The balance ring device of the motor according to claim 1, wherein the balance ring further has a bottom ring, and the bottom of the bottom ring is provided with a catch piece, and the catch piece is embedded in the positioning hole of the base plate.