CN202068298U - Permanent magnetic direct current motor of stopping along with power shutdown - Google Patents
Permanent magnetic direct current motor of stopping along with power shutdown Download PDFInfo
- Publication number
- CN202068298U CN202068298U CN201120113419XU CN201120113419U CN202068298U CN 202068298 U CN202068298 U CN 202068298U CN 201120113419X U CN201120113419X U CN 201120113419XU CN 201120113419 U CN201120113419 U CN 201120113419U CN 202068298 U CN202068298 U CN 202068298U
- Authority
- CN
- China
- Prior art keywords
- ring
- assembly
- pole magnet
- magnet
- magnetic hysteresis
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Landscapes
- Dc Machiner (AREA)
Abstract
The utility model discloses a permanent magnetic direct current motor of stopping along with power shutdown, which comprises a casing, a rotor, a stator, a commutator, an electric brush, a front end cover and a back end cover and is characterized in that the permanent magnetic direct current motor also comprises a magnetic hysteresis damping pair consisting of a magnetic hysteresis component which is connected with the casing and a multipole magnetic ring component which is connected with a rotor spindle. The permanent magnetic direct current motor of stopping along with power shutdown has the advantages that the structure is simple; the permanent magnetic direct current motor of stopping along with power shutdown is not limited by the using field space and immediately stops rotating after power shutdown and the like.
Description
Technical field
The utility model relates to a kind of permanent magnet DC motor, is specifically related to the permanent magnet DC motor that a kind of dead electricity that has magnetic hysteresis damping pair is promptly stopped.Belong to the micromachine technical field.
Background technology
Permanent magnet DC motor is to adopt permanent magnet to set up a kind of direct current machine in magnetic field.Described miniature permanent magnet DC motor is widely used in the automatic control equipment of portable electric appts and utensil and every profession and trade.In some special occasions such as electronic police and video-unit, in order to satisfy need of work, require to stop operating immediately after the described direct current machine dead electricity, to realize the location fixed point observation.Yet existing described direct current machine must add the braking mechanical device just can have this function.This has not only increased production cost, and often owing to be subjected to the spatial limitation of high-accuracy application occasion, and the braking mechanical device can't be installed.
Summary of the invention
The utility model aims to provide a kind of simple in structure, is not subjected to the permanent magnet DC motor that stops operating immediately after the dead electricity of use occasion spatial limitation, to overcome the deficiency of prior art, satisfies the application demand of special occasions.
The utility model realizes that the technical scheme of its purpose is:
The permanent magnet DC motor that a kind of dead electricity is promptly stopped comprises casing, has the rotor assembly of main shaft, stator, and commutator, brush, front end housing and rear end cap, its innovative point are, also comprise magnetic hysteresis assembly and multi-pole magnet-ring assembly; Described magnetic hysteresis assembly is axis hole by B-H loop and non-magnet material product first lining ring and is connected; Described multi-pole magnet-ring assembly is axis hole by multi-pole magnet-ring and non-magnet material product second lining ring and is connected; Described magnetic hysteresis arrangement of components is fixedly attached in respect to the casing of the opposite side of commutator and by first lining and casing inner wall; Described multi-pole magnet-ring assembly is packed on the main shaft of rotor assembly by second lining and its multi-pole magnet-ring and B-H loop are rotating mutually, constitutes magnetic hysteresis damping auxiliary structure thus.
Can understand by above given technical scheme, the utility model is because with described magnetic hysteresis damping pair, be arranged in the casing and compact conformation, do not account for installing space, and adopt multi-pole magnet-ring to tackle layout mutually with B-H loop, and braking immediately after the motor dead electricity, and braking is reliable, thus realized the purpose of this utility model.
In technique scheme, the utility model advocates that also the B-H loop of described magnetic hysteresis assembly is connected and the multi-pole magnet-ring of multi-pole magnet-ring assembly and being connected of second lining ring with first lining ring, all is that glue is bonding; The attaching of magnetic hysteresis assembly first lining ring and casing inner wall and second lining ring of multi-pole magnet-ring assembly and being fixedly attached of main shaft all are interference attachings.Adopt technique scheme, can further improve its retardation efficiency, effectively avoided because the issuable braking of single mechanical interference is unstable, and the Be Controlled structural member location that causes some high-accuracy product is not accurate and the drift of some electronic product such as imaging pictures such as electronic police and video-unit.
The utility model also advocates, magnetic pole 〉=10 utmost points of alternately being arranged by S, the N utmost point of the multi-pole magnet-ring of described multi-pole magnet-ring assembly.
After technique scheme was implemented, what the utility model had was simple in structure, was not subjected to the use occasion spatial limitation, and characteristics such as good braking effect are conspicuous.
Description of drawings
Fig. 1 is the structural representation of a kind of embodiment of the utility model;
Fig. 2 is the structural representation as magnetic hysteresis assembly 8 shown in Figure 1, and the axial length of described magnetic hysteresis assembly 8 is 12 ~ 15mm; 2 recessed slot 8-2-1 shown in the figure are the hold-down screws that are used for getting out of the way front end housing 6;
Fig. 3 is the structural representation as multi-pole magnet-ring assembly 9 shown in Figure 1, and the axial length of described multi-pole magnet-ring assembly 9 equals or near the axial length of magnetic hysteresis assembly 8.
Embodiment
Below contrast accompanying drawing, embodiment of the present utility model is described further.
A kind of typical embodiment is shown in accompanying drawing 1 ~ 3.
The permanent magnet DC motor that a kind of dead electricity is promptly stopped comprises casing 1, has the rotor assembly 2 of main shaft 2-1, stator 3, and commutator 4, brush 5, front end housing 6 and rear end cap 7 also comprise magnetic hysteresis assembly 8 and multipole end ring assembly 9; Described magnetic hysteresis assembly 8 is axis hole by B-H loop 8-1 and the non-magnet material product first lining ring 8-2 and is connected; Described multi-pole magnet-ring assembly 9 is axis hole by multi-pole magnet-ring (permanent magnet) 9-1 and the non-magnet material product second lining ring 9-2 and is connected; Described magnetic hysteresis assembly 8 is arranged in respect to being fixedly attached in the casing 1 of the opposite side of commutator 4 and by the first lining ring 8-2 and casing 1 inwall; The main shaft 1-1 that described multi-pole magnet-ring assembly 9 is packed in rotor assembly 2 by the second lining ring 9-2 goes up and its multi-pole magnet-ring 9-1 and B-H loop 8-1 are rotating mutually, constitutes magnetic hysteresis damping auxiliary structure thus.The multi-pole magnet-ring 9-1 that is connected with multi-pole magnet-ring assembly 9 of the B-H loop 8-1 of described magnetic hysteresis assembly 8 and the first lining ring 8-2 all is that glue is bonding with being connected of the second lining ring 9-2, and being fixedly attached of second lining ring 9-2 of the attaching of magnetic hysteresis assembly 8 first lining ring 8-2 and casing 1 inwall and multi-pole magnet-ring assembly 9 and main shaft 2-1 all is interference attachings.
In above-mentioned embodiment, described adhesive-layer is the anaerobic adhesive adhesive-layer, and B-H loop 8-1 is the fe-Co-V permanent magnetic alloy product, and multi-pole magnet-ring 9-1 is a bonded neodymium-iron-boron permanent magnet product.
Operating mode summary of the present utility model is that under operating mode, when multi-pole magnet-ring assembly 9 rotated with rotor assembly 2, its multi-pole magnet-ring 9-1 magnetized continuously to B-H loop 8-1, forced demagnetization also to make B-H loop 8-1 magnetic reversal; When described motor dead electricity, B-H loop 8-1 attracts multi-pole magnet-ring 9-1 to hinder its inertia to rotate, and produces damping torque, thereby described motor is stopped the rotation immediately.And under operating mode, described tape damping pair is very little to the influence of normal operation of the present utility model.
The utility model first sample uses in video monitoring apparatus, and its effect is extraordinary.
Claims (3)
1. permanent magnet DC motor that dead electricity is promptly stopped, comprise casing (1), rotor assembly (2) with main shaft (2-1), stator (3), commutator (4), brush (5), front end housing (6) and rear end cap (7), it is characterized in that, also comprise magnetic hysteresis assembly (8) and multi-pole magnet-ring assembly (9); Described magnetic hysteresis assembly (8) is axis hole by B-H loop (8-1) and non-magnet material product first lining ring (8-2) and is connected; Described multi-pole magnet-ring assembly (9) is axis hole by multi-pole magnet-ring (9-1) and non-magnet material product second lining ring (9-2) and is connected; Described magnetic hysteresis assembly (8) is arranged in respect to being fixedly attached in the casing (1) of the opposite side of commutator (4) and by first lining ring (8-2) and casing (1) inwall; The main shaft (1-1) that described multi-pole magnet-ring assembly (9) is packed in rotor assembly (2) by second lining ring (9-2) goes up and its multi-pole magnet-ring (9-1) is rotating mutually with B-H loop (8-1), constitutes magnetic hysteresis damping auxiliary structure thus.
2. the permanent magnet DC motor that dead electricity according to claim 1 is promptly stopped, it is characterized in that, the B-H loop (8-1) of described magnetic hysteresis assembly (8) is connected and the multi-pole magnet-ring (9-1) of multi-pole magnet-ring assembly (9) and being connected of second lining ring (9-2) with first lining ring (8-2), all is that glue is bonding; The attaching of magnetic hysteresis assembly (8) first lining rings (8-2) and casing (1) inwall and second lining ring (9-2) of multi-pole magnet-ring assembly (9) and being fixedly attached of main shaft (2-1) all are interference attachings.
3. dead electricity according to claim 1 is promptly stopped permanent magnet DC motor, it is characterized in that, magnetic pole 〉=10 utmost points of alternately being arranged by S, the N utmost point of the multi-pole magnet-ring (9-1) of described multi-pole magnet-ring assembly (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120113419XU CN202068298U (en) | 2011-04-18 | 2011-04-18 | Permanent magnetic direct current motor of stopping along with power shutdown |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120113419XU CN202068298U (en) | 2011-04-18 | 2011-04-18 | Permanent magnetic direct current motor of stopping along with power shutdown |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202068298U true CN202068298U (en) | 2011-12-07 |
Family
ID=45062149
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120113419XU Expired - Lifetime CN202068298U (en) | 2011-04-18 | 2011-04-18 | Permanent magnetic direct current motor of stopping along with power shutdown |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202068298U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022105768A1 (en) * | 2020-11-20 | 2022-05-27 | 横店集团英洛华电气有限公司 | Electric motor capable of realizing quick shutdown |
-
2011
- 2011-04-18 CN CN201120113419XU patent/CN202068298U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022105768A1 (en) * | 2020-11-20 | 2022-05-27 | 横店集团英洛华电气有限公司 | Electric motor capable of realizing quick shutdown |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201374636Y (en) | Coreless direct current brushless motor and motor driven tool | |
| WO2008063282A3 (en) | Motor having stator with generally planar windings | |
| TW200629690A (en) | Rotor balance structure for motor | |
| US8344571B2 (en) | High-efficiency permanent magnet motor | |
| CN204465161U (en) | A kind of single-phase transverse flux machine | |
| CN202068298U (en) | Permanent magnetic direct current motor of stopping along with power shutdown | |
| CN204425079U (en) | External rotor brushless motor | |
| CN204425164U (en) | Brushless motor | |
| CN104539122A (en) | Rotary linear permanent magnet electric motor | |
| CN103560610A (en) | Improved structure of motor | |
| EP2608368A3 (en) | Stator assembly having end cap with polarity keying feature for a power tool | |
| CN1286253C (en) | Non-stator iron core brushless DC motor | |
| TW200638656A (en) | Rotor balance structure for motor | |
| US20140132092A1 (en) | Rotating electrical machine | |
| CN201113741Y (en) | Sensor-free inner rotor permanent magnetism DC brushless motor | |
| CN201336588Y (en) | Shellless brushless DC motor | |
| CN104506009B (en) | Brushless motor | |
| CN108429421B (en) | Mixed excitation motor for new energy automobile | |
| CN110635650B (en) | Three-stator brushless permanent magnet motor | |
| CN203027178U (en) | Electronic speed measuring circuit for brushless direct current motor | |
| CN202586548U (en) | Biradial permanent magnet composite magnetic circuit generator for automobile | |
| CN102457135A (en) | Starting motor used by engine | |
| CN106849487B (en) | DC brushless motor with brake for clutch | |
| CN104505966A (en) | Outer rotor brushless motor | |
| CN217401521U (en) | One-way permanent magnet safety brake |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111207 |
|
| CX01 | Expiry of patent term |