CN200972391Y - Series excitation electric speed measuring sensor of automatic drum washing machine - Google Patents
Series excitation electric speed measuring sensor of automatic drum washing machine Download PDFInfo
- Publication number
- CN200972391Y CN200972391Y CN 200620074336 CN200620074336U CN200972391Y CN 200972391 Y CN200972391 Y CN 200972391Y CN 200620074336 CN200620074336 CN 200620074336 CN 200620074336 U CN200620074336 U CN 200620074336U CN 200972391 Y CN200972391 Y CN 200972391Y
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- China
- Prior art keywords
- stator
- washing machine
- speed measuring
- rotor assembly
- measuring sensor
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- Expired - Fee Related
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Abstract
The utility model discloses a speed sensor of a serial excitation type electric motor for a full automatic tumbling-box washing machine, including a stator component, a rotor component and an output wire for stator loop. The interior of a circular metal casing of the stator is provided with 16pole magnet claw-pole which are opposite each other in pairs and are stuck and interlaced outside a polypropylene coating layer positioned inside the stator loop. The casing of the stator can be metal or a layer of polypropylene outside the casing. The rotor component can be a permanent magnetic rotor, or a rotator fully coated with nylon PA outside the surface of the rotator, or with the naked exterior edge surrounding the rotator while the rest parts are all coated with nylon PA. The utility model adopts 16pole magnet claw-pole and rotor components coated with plastics, which is compact in structure, small in volume, stable in output electric voltage signals, small in consumption and excellent in electric insulation performance.
Description
Technical field
The utility model relates to a kind of motor speed measurement device, especially a kind of tachogenerator that is used to measure the series excitation type motor rotating speed.
Background technology
Automatic washing machine, dish-washing machine, exhaust fan, suction cleaner etc. all adopt rotating speed up to 18000 rev/mins～20000 rev/mins series excitation type motor is as its power source, need measure the rotating speed of series excitation type motor when particularly microcomputerized control full automatic drum type washing machine is worked with tachogenerator, it converts the tach signal of the series excitation type motor of collection to voltage signal, feed back to microcomputer control system again, moving law according to tachogenerator rotating speed-voltage curve, microcomputer control system compares the tachometer value of each section of setting in the real-time rotating speed of motor and the microcomputer program, determines next step working routine again.
The tachogenerator of existing microcomputerized control full automatic drum type washing machine has only 8 magnetic pawl utmost points because of its stator module inner ring surface, output voltage signal loss 45%～50%, and also the stationarity of voltage signal is relatively poor.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of series motor speed measuring sensor is provided, and this tachogenerator is applied to microcomputerized control full automatic drum type washing machine, and its output voltage signal loss is less and stationarity is better.Series motor speed measuring sensor of the present utility model, comprise the annular stator module, be positioned at the rotor assembly and the stator coil output lead at stator module center, stator module is made up of macromolecular material clad, the outer annular stator casing of clad of annular stator coil, stator coil surfaces, the housing parts that stator casing and rotor assembly are adjacent has along the axial one group of uniform magnetic pawl utmost point of inner ring surface, and described rotor assembly can be contained in the series excitation type motor rotating shaft by its center borehole jack.
Described annular stator casing is fastened by the metal hollow toroidal shell of two halves flute profile enveloping surface up and down and forms, circular ring metal stator casing and rotor assembly are adjacent, its inner housing partly be up and down each 8 of two halves along the axial equally distributed strip magnetic pawl utmost point of inner ring surface, 8 pairs totally 16 utmost point magnetic pawl utmost points become circle-shaped staggered being stuck in outside the macromolecular material clad of stator coil inboard in twos relatively.
Described annular stator casing is fastened by the metal hollow toroidal shell of two halves flute profile enveloping surface up and down and forms, circular ring metal stator casing and rotor assembly are adjacent, its inner housing partly be up and down each 8 of two halves along the axial equally distributed strip magnetic pawl utmost point of inner ring surface, 8 pairs totally 16 utmost point magnetic pawl utmost points become circle-shaped staggered being stuck in outside the stator coil macromolecular material clad in twos relatively; The outside also coats the macromolecular material housing of one deck in the circular ring metal stator casing, and the side that this macromolecular material housing can be connected with the series excitation type motor rotating shaft is opened wide, and all the other seal into flat bell shape.
Described rotor assembly is made up of the complete clad of macromolecular material on cylindrical permanent magnet rotor and permanent magnet rotor surface.
Described rotor assembly can be the cylindrical permanent magnet rotor.
Described rotor assembly also can be made up of the macromolecular material part clad on cylindrical permanent magnet rotor and permanent magnet rotor surface, and the circumferential peripheral edge portion of permanent magnet rotor is exposed, and remainder all is coated in the macromolecular material.
The output terminal of described two output leads that link to each other with stator coil is plug-in unit terminals.
The macromolecular material of described coating stator module and stator casing is polypropylene PP; The macromolecular material that coats rotor assembly is nylon PA.
Tachogenerator of the present utility model has the following advantages:
1. owing in the stator module shell 8 pairs of magnetic pawl utmost points there is week, under the same electromagnetic induction, have only the tachogenerator output voltage of 8 magnetic pawl utmost points high by 50% than existing stator module inner peripheral surface, the output voltage loss is less.
2. because stator module and rotor assembly surface coat polypropylene PP and nylon PA respectively, and moisture proof is effective, and electrical insulation properties is good, be difficult for producing the ground short circuit phenomenon.
3. because rotor assembly surface covered with nylon PA, high speed rotating is steady, can prevent from that the cylindrical rotor magnet from ftractureing to throw away when high speed rotating.
4. polypropylene PP of Bao Fuing and nylon PA are heat-resisting indeformable, can be under 100 ℃ of high temperature operate as normal.
5. tachogenerator of the present utility model can bear the anti-lightning strike test of 5000V.
6. tachogenerator compact conformation of the present utility model, volume is little, output voltage signal is steady, and it is little to fluctuate.
Description of drawings
Fig. 1 is the front view of first embodiment of series motor speed measuring sensor of the present utility model.
Fig. 2 is the A-A line cut-open view of Fig. 1.
Fig. 3 is the front view of second embodiment of series motor speed measuring sensor of the present utility model.
Fig. 4 is the B-B line cut-open view of Fig. 3.
Fig. 5 is the front view of the 3rd embodiment of series motor speed measuring sensor of the present utility model.
Fig. 6 is the C-C line cut-open view of Fig. 5
Among the figure: stator casing 1, stator module 2, stator coil 3, stator coil clad 4, the magnetic pawl utmost point 5, rotor assembly 6,, permanent magnet rotor 7, rotor bore 8, rotor clad 9, output lead 10, plug-in unit terminal 11, macromolecular material housing 12.
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples
Embodiment one:
The series motor speed measuring sensor of present embodiment illustrated in figures 1 and 2 is by annular stator module 2, the rotor assembly 6 and the stator coil output lead 10 that are positioned at annular stator module 2 centers are formed, and stator module 2 is made up of polypropylene PP clad 4, the outer annular stator casing 1 of clad of annular stator coil 3, stator coil surfaces.Circular ring metal stator casing 1 is fastened by the metal hollow toroidal shell of two halves flute profile enveloping surface up and down and forms, circular ring metal stator casing 1 and rotor assembly 6 adjacent housing parts be up and down each 8 of two halves along the axial equally distributed strip magnetic pawl utmost point 5 of inner ring surface, form 8 pairs of magnetic pawl utmost points 5 of totally 16 utmost points, become circle-shaped staggered being stuck in outside the polypropylene PP clad 4 of stator coil 3 inboards in twos relatively.
Plug-in unit terminal 11 is positioned at the head of output lead 10, is used to connect micro computer.
Embodiment two:
The primary structure of the series motor speed measuring sensor of Fig. 3 and present embodiment shown in Figure 4 and embodiment one are similar, difference is: the outside also coats the macromolecular material housing 12 that one deck becomes flat bell shape in the circular ring metal stator casing 1 of the series motor speed measuring sensor of present embodiment, its material is polypropylene PP, this housing one side is opened wide, can be connected all the other sealings with the series excitation type motor rotating shaft.
Rotor is the cylindrical permanent magnet rotor 7 that rotor bore 8 is arranged, and does not have clad.
Embodiment three:
The primary structure of the series motor speed measuring sensor of Fig. 5 and present embodiment shown in Figure 6 and embodiment two are similar, and difference is: the peripheral edge portion of the cylindrical permanent magnet rotor 7 of rotor assembly 6 is exposed, and remainder all coats one deck nylon PA.
When the series excitation type motor of full automatic drum type washing machine rotates, the permanent magnet rotor assembly that is sleeved in its rotating shaft rotates simultaneously, the stator coil cutting magnetic line, since stator casing along the axially uniform a plurality of magnetic pawls of inner ring surface extremely to the magnetic screening action of cutting magnetic line, stator coil induces the simple alternating current electromotive force, induced voltage signal flows to microcomputer control system through output lead, the series excitation type motor rotating speed is high more, the intensity of induced voltage signal is big more, the intensity of this induced voltage signal is directly proportional with rotating speed, according to the moving law of tachogenerator rotating speed-voltage curve, can determine the actual speed of series excitation type motor.
In addition to the implementation; the utility model can also have other embodiments; adopt overall plastic structure or other to be convenient to the structure of making and installing as stator casing, all employings and the utility model are equal to be replaced or the formed technical scheme of equivalent transformation, all in protection domain of the present utility model.
Claims (8)
1. full automatic drum type washing machine series motor speed measuring sensor, comprise annular stator module (2), be positioned at the rotor assembly (6) and the stator coil output lead (10) at stator module (2) center, it is characterized in that: stator module (2) is made up of macromolecular material clad (4), the outer annular stator casing (1) of clad of annular stator coil (3), stator coil surfaces, the housing parts that stator casing (1) is adjacent with rotor assembly (6) has along axial several the uniform magnetic pawl utmost points (5) of inner ring surface, and rotor assembly (6) has center pit (8).
2. full automatic drum type washing machine series motor speed measuring sensor according to claim 1, it is characterized in that: described annular stator casing (1) is fastened by the metal hollow toroidal shell of two halves flute profile enveloping surface up and down and forms, circular ring metal stator casing (1) is adjacent with rotor assembly (6), its inner housing partly be up and down each 8 of two halves along the axial equally distributed strip magnetic pawl utmost point of inner ring surface (5), 8 pairs totally 16 utmost point magnetic pawl utmost points (5) become circle-shaped staggered being stuck in outside the macromolecular material clad (4) of stator coil inboard in twos relatively.
3. full automatic drum type washing machine series motor speed measuring sensor according to claim 1, it is characterized in that: described annular stator casing (1) is fastened by the metal hollow toroidal shell of two halves flute profile enveloping surface up and down and forms, circular ring metal stator casing (1) is adjacent with rotor assembly (6), its inner housing partly be up and down each 8 of two halves along the axial equally distributed strip magnetic pawl utmost point of inner ring surface (5), 8 pairs relative in twos circle-shaped interlocking of one-tenth of totally 16 utmost point magnetic pawl utmost points (5) is stuck in outside the stator coil macromolecular material clad (4), the outside also coats the macromolecular material housing (12) of one deck in circular ring metal stator casing (1), this housing is connected a side and opens wide with the series excitation type motor rotating shaft, all the other seal into flat bell shape.
4. full automatic drum type washing machine series motor speed measuring sensor according to claim 2 is characterized in that: rotor assembly (6) is made up of the complete clad of macromolecular material (9) on cylindrical permanent magnet rotor (7) and permanent magnet rotor surface.
5. full automatic drum type washing machine series motor speed measuring sensor according to claim 3 is characterized in that: described rotor assembly (6) is a cylindrical permanent magnet rotor (7).
6. full automatic drum type washing machine series motor speed measuring sensor according to claim 3, it is characterized in that: described rotor assembly (6) also can be made up of the macromolecular material part clad on cylindrical permanent magnet rotor (7) and permanent magnet rotor surface, the circumferential peripheral edge portion of permanent magnet rotor is exposed, and remainder all is coated in the macromolecular material.
7. according to claim 1,2 or 3 described full automatic drum type washing machine series motor speed measuring sensors, it is characterized in that: the output terminal of described two output leads (10) that link to each other with stator coil (3) is plug-in unit terminal (11).
8. full automatic drum type washing machine series motor speed measuring sensor according to claim 7 is characterized in that: the macromolecular material of described coating stator module (2) and stator casing clad (12) is polypropylene PP; The macromolecular material that coats rotor assembly is nylon PA.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620074336 CN200972391Y (en) | 2006-06-30 | 2006-06-30 | Series excitation electric speed measuring sensor of automatic drum washing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620074336 CN200972391Y (en) | 2006-06-30 | 2006-06-30 | Series excitation electric speed measuring sensor of automatic drum washing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200972391Y true CN200972391Y (en) | 2007-11-07 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620074336 Expired - Fee Related CN200972391Y (en) | 2006-06-30 | 2006-06-30 | Series excitation electric speed measuring sensor of automatic drum washing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200972391Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102426264A (en) * | 2011-09-07 | 2012-04-25 | 江苏海狮机械集团有限公司 | Detection method for rotation speed of roller of washing and dehydration machine and detection unit structure thereof |
| CN105083300A (en) * | 2015-08-07 | 2015-11-25 | 湖南广思科技有限公司 | Speed detection device and installation method thereof |
| CN107795504A (en) * | 2016-08-31 | 2018-03-13 | 山东豪迈机械科技股份有限公司 | Adjustable blower fan system and its adjusting method |
-
2006
- 2006-06-30 CN CN 200620074336 patent/CN200972391Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102426264A (en) * | 2011-09-07 | 2012-04-25 | 江苏海狮机械集团有限公司 | Detection method for rotation speed of roller of washing and dehydration machine and detection unit structure thereof |
| CN105083300A (en) * | 2015-08-07 | 2015-11-25 | 湖南广思科技有限公司 | Speed detection device and installation method thereof |
| CN107795504A (en) * | 2016-08-31 | 2018-03-13 | 山东豪迈机械科技股份有限公司 | Adjustable blower fan system and its adjusting method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: ZHENJIANG SURUN ELECTRONIC TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: ZHANG ZEXI Effective date: 20110926 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20110926 Address after: 212005, Jiangsu, Zhenjiang Province, seven Li, East China next to electricity Patentee after: Zhenjiang Surun Electronic Technology Co.,Ltd. Address before: 212005, Jiangsu, Zhenjiang Province, seven Li, East China next to electricity Patentee before: Zhang Zexi |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20071107 Termination date: 20110630 |