CN206004512U - A kind of brshless DC motor of rotating seal - Google Patents
A kind of brshless DC motor of rotating seal Download PDFInfo
- Publication number
- CN206004512U CN206004512U CN201620958802.8U CN201620958802U CN206004512U CN 206004512 U CN206004512 U CN 206004512U CN 201620958802 U CN201620958802 U CN 201620958802U CN 206004512 U CN206004512 U CN 206004512U
- Authority
- CN
- China
- Prior art keywords
- circuit board
- rotor
- rear case
- sensor
- case component
- 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 - Fee Related
Links
Abstract
The utility model discloses a kind of brshless DC motor of rotating seal, including：Housing, stator, rotor, rear case component, bearing, circuit board assemblies, rotor sensor, sealing ring；Described rear case component is connected with housing afterbody and forms sealing structure by sealing ring, described stator is installed on enclosure interior, described rotor is installed on housing and rear case component by bearing, and described rotor sensor is fixed on rotor afterbody, and described circuit board assemblies are installed on outside rear case component；Described circuit board assemblies include circuit board and Hall components and parts, and described Hall components and parts are welded on circuit board.Hall components and parts and circuit board are effectively isolated by this utility model with corrosive liquids, prevent the inefficacy under the influence of working media of Hall components and parts and circuit board.By the loop configuration of circuit board and rear case component mounting groove, both ensure that the axiality of Hall components and parts and rotor sensor, also achieve the adjustment of Hall components and parts angle.
Description
Technical field
This utility model is related to a kind of brshless DC motor, especially provides a kind of brshless DC motor of rotating seal.
Background technology
Brushless direct current motor has small volume, rotating speed height, efficiency high, the many merits such as easily controllable, is widely used in boat
The fields such as its aviation, track traffic, electric locomotive, precision machine tool.
For oil pump class motor, its working media is typically corrosive liquid, in order to increase the lubricity of bearing,
Such motor designs flow channel for liquids so that working media is full of motor internal in inner chamber.This oil based media can make Hall components and parts
Lost efficacy, printed circuit board is immersed in for a long time in oil and can produce deformation.
Therefore, people are in the urgent need to a kind of brshless DC motor rational in infrastructure.
Utility model content
The purpose of this utility model is to provide a kind of brshless DC motor of rotating seal, can effectively solve above-mentioned
Problem.
The technical solution of the utility model is：A kind of brshless DC motor of rotating seal, including：Housing 1, stator 2,
Rotor 3, rear case component 4, bearing 5, circuit board assemblies 6, rotor sensor 7, sealing ring 8；Described rear case component 4 and housing 1 tail
Portion connects and passes through sealing ring 8 composition sealing structure, and described stator 2 is installed on inside housing 1, and described rotor 3 is pacified by bearing 5
It is loaded on housing 1 and rear case component 4, described rotor sensor 7 is fixed on rotor 3 afterbody, after described circuit board assemblies 6 are installed on
Outside cap assemblies 4；Described circuit board assemblies 6 include circuit board 6a and Hall components and parts 6b, and described Hall components and parts 6b is welded in
On circuit board 6a.
Preferably, described circuit board 6a be annular, described rear case component 4 be provided with match with circuit board 6a with regard to axial direction
Symmetrical annular mounting groove, described circuit board 6a is fastened on rear case component 4 in annular mounting groove and by 4 screws.
Preferably, described rotor sensor 7 includes sensor base 7a and sensor magnetic piece 7b, described sensor magnetic piece 7b
For shoe permanent magnet, have 4 pieces of composition 4 pole fields, described sensor magnetic piece 7b is by the ring axially embedding in sensor base 7a
In groove, fastening adhesion is carried out to sensor magnetic piece 7b by epoxy resin encapsulated.
This utility model has following beneficial effect：
This utility model passes through using rotating seal structure, effectively by Hall components and parts and circuit board and corrosive liquid
Body is isolated, and prevents the inefficacy under the influence of working media of Hall components and parts and circuit board.Installed by circuit board and rear case component
The loop configuration of groove, both ensure that the axiality of Hall components and parts and rotor sensor, also achieved Hall components and parts angle
Adjustment is it is achieved that motor performance optimization collocation.
Brief description
Fig. 1 is structural representation of the present utility model；
Fig. 2 is close-up schematic view of the present utility model；
Fig. 3 is the structural representation of circuit board in this utility model；
Fig. 4 is the structural representation of rotor sensor in this utility model；
In figure：1st, housing；2nd, stator；3rd, rotor；4th, rear case component；5th, bearing；6th, circuit board assemblies；6a, circuit board；
6b, Hall components and parts；7th, rotor sensor；7a, sensor base；7b, sensor magnetic piece；8th, sealing ring；9th, at embedding.
Specific embodiment
With reference to the accompanying drawings and examples this utility model is described in detail.
A kind of brshless DC motor of rotating seal as shown in Figure 1, 2, including：Including：Housing 1, stator 2, rotor 3,
Rear case component 4, bearing 5, circuit board assemblies 6, rotor sensor 7, sealing ring 8；Rear case component 4 is connected and leads to housing 1 afterbody
Cross sealing ring 8 composition sealing structure, stator 2 is installed on inside housing 1, and rotor 3 is installed on housing 1 and bonnet group by bearing 5
On part 4, rotor sensor 7 is fixed on rotor 3 afterbody, and circuit board assemblies 6 are installed on outside rear case component 4；Circuit board assemblies 6 wrap
Include circuit board 6a and Hall components and parts 6b, Hall components and parts 6b is welded on circuit board 6a, realizes circuit board by rear case component 4
The isolation of 6a, Hall components and parts 6b and motor internal corrosive liquids.
Wherein, as shown in figure 3, circuit board 6a is annular, rear case component 4 is provided with and circuit board 6a phase the structure of circuit board 6a
Coupling with regard to axially symmetric annular mounting groove, circuit board 6a is in annular mounting groove and after being fastened on by 4 screws
It is possible to 360 ° arbitrarily rotate on cap assemblies 4, this structure both ensure that coaxial between Hall components and parts 6b and rotor sensor 7
Degree, it is also possible to adjust Hall components and parts angle according to actually used occasion, reaches motor performance optimization collocation.
The structure of rotor sensor 7 is as shown in figure 4, include sensor base 7a and sensor magnetic piece 7b, sensor magnetic piece
7b is shoe permanent magnet, has 4 pieces of composition 4 pole fields, sensor magnetic piece 7b is by the annular groove axially embedding in sensor base 7a
Interior, fastening adhesion is carried out to sensor magnetic piece 7b by epoxy resin encapsulated.Sensor base 7a outer wall can prevent sensor
Magnetic piece 7b departs under the circumference of the high-speed rotation, and epoxy sealing can prevent sensor magnetic piece 7b from axially deviating from.Sensor magnetic piece
7b selects high performance magnetic material, such as Rare-Earth Cobalt magnetic material or neodymium-iron-boron magnetic material, improves rotor sensor 7 table magnetic big
Little it is ensured that Hall components and parts 6b is in the case of rear case component 4 isolation, good rotor-position signal can be detected.
Above-described embodiment is only that technology design of the present utility model and feature are described, its object is to allow and is familiar with technique
Personage will appreciate that content of the present utility model and implement according to this, protection domain of the present utility model can not be limited with this.
All equivalence changes made according to this utility model spirit or modification, all should cover protection domain of the present utility model it
Interior.
Claims (3)
1. a kind of brshless DC motor of rotating seal is it is characterised in that include：Housing (1), stator (2), rotor (3), after
Cap assemblies (4), bearing (5), circuit board assemblies (6), rotor sensor (7), sealing ring (8)；Described rear case component (4) and housing
(1) afterbody connects and passes through sealing ring (8) composition sealing structure, and described stator (2) is installed on housing (1) inside, described rotor
(3) it is installed on housing (1) and rear case component (4) by bearing (5), described rotor sensor (7) is fixed on rotor (3) tail
Portion, it is outside that described circuit board assemblies (6) are installed on rear case component (4)；Described circuit board assemblies (6) include circuit board (6a) and suddenly
That components and parts (6b), described Hall components and parts (6b) are welded on circuit board (6a).
2. according to a kind of rotating seal described in claim 1 brshless DC motor it is characterised in that described circuit board
(6a) be annular, described rear case component (4) be provided with circuit board (6a) match with regard to axially symmetric annular mounting groove, institute
State circuit board (6a) to be fastened on rear case component (4) in annular mounting groove and by 4 screws.
3. according to a kind of rotating seal described in claim 1 brshless DC motor it is characterised in that described sensor turns
Sub (7) include sensor base (7a) and sensor magnetic piece (7b), and described sensor magnetic piece (7b) is shoe permanent magnet, has 4
Block forms 4 pole fields, and described sensor magnetic piece (7b) embeds in the annular groove of sensor base (7a) by axial direction, by asphalt mixtures modified by epoxy resin
Fat embedding carries out fastening adhesion to sensor magnetic piece (7b).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620958802.8U CN206004512U (en) | 2016-08-26 | 2016-08-26 | A kind of brshless DC motor of rotating seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620958802.8U CN206004512U (en) | 2016-08-26 | 2016-08-26 | A kind of brshless DC motor of rotating seal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206004512U true CN206004512U (en) | 2017-03-08 |
Family
ID=58198541
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620958802.8U Expired - Fee Related CN206004512U (en) | 2016-08-26 | 2016-08-26 | A kind of brshless DC motor of rotating seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206004512U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106208593A (en) * | 2016-08-26 | 2016-12-07 | 沈阳兴华航空电器有限责任公司 | A kind of brshless DC motor of rotating seal |
| CN110768472A (en) * | 2019-10-18 | 2020-02-07 | 北京曙光航空电气有限责任公司 | Axial integrated oil immersion brushless direct current motor position sensor mounting structure |
| CN113364219A (en) * | 2021-07-11 | 2021-09-07 | 陕西航空电气有限责任公司 | Rotor position detection structure for liquid-cooled brushless direct current motor |
| US11837935B2 (en) | 2021-02-02 | 2023-12-05 | Black & Decker, Inc. | Canned brushless motor |
-
2016
- 2016-08-26 CN CN201620958802.8U patent/CN206004512U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106208593A (en) * | 2016-08-26 | 2016-12-07 | 沈阳兴华航空电器有限责任公司 | A kind of brshless DC motor of rotating seal |
| CN110768472A (en) * | 2019-10-18 | 2020-02-07 | 北京曙光航空电气有限责任公司 | Axial integrated oil immersion brushless direct current motor position sensor mounting structure |
| US11837935B2 (en) | 2021-02-02 | 2023-12-05 | Black & Decker, Inc. | Canned brushless motor |
| US11855521B2 (en) | 2021-02-02 | 2023-12-26 | Black & Decker, Inc. | Brushless DC motor for a body-grip power tool |
| US11870316B2 (en) | 2021-02-02 | 2024-01-09 | Black & Decker, Inc. | Brushless motor including a nested bearing bridge |
| US11876424B2 (en) | 2021-02-02 | 2024-01-16 | Black & Decker Inc. | Compact brushless motor including in-line terminals |
| US11955863B2 (en) | 2021-02-02 | 2024-04-09 | Black & Decker Inc. | Circuit board assembly for compact brushless motor |
| CN113364219A (en) * | 2021-07-11 | 2021-09-07 | 陕西航空电气有限责任公司 | Rotor position detection structure for liquid-cooled brushless direct current motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170308 Termination date: 20210826 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |