CN1508830A - Centrifugal switch - Google Patents
Centrifugal switch Download PDFInfo
- Publication number
- CN1508830A CN1508830A CNA021565309A CN02156530A CN1508830A CN 1508830 A CN1508830 A CN 1508830A CN A021565309 A CNA021565309 A CN A021565309A CN 02156530 A CN02156530 A CN 02156530A CN 1508830 A CN1508830 A CN 1508830A
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- centrifugal
- slip ring
- switch
- movable terminal
- control lever
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Abstract
The centrifugal switch comprises sleeve with centrifugal guide plate, centrifugal cone clamped in the centrifugal guide plate, slip ring combined with pivot of the centrifugal cone, control rod and switch box. One end of the control rod is connected to the slip ring, and moved with movement of the slip ring. As the control rod moves, fixed connector in switch box contacts with or separates from the movable connector in switch box. Thus, the said structure can prevent electric arc generated between movable connector and fixed connector. Moreover, tip shaped connectors on the slip ring reduces friction with slide plate. The invention improves the control rod of centrifugal switch making the switch more safe and smooth.
Description
Technical field
The present invention relates to a kind of inductor motor of electricity field, particularly relate to the centrifugal switch that a kind of inductor motor uses, specifically a kind of structure of improving the centrifugal switch control lever makes switch safer centrifugal switch more freely.
Background technology
In general, motor is the device that electric energy is converted to mechanical energy, according to using power supply to be divided into DC motor and alternating current motor.
Above-mentioned alternating current motor, it comprises induction motor, synchronized engine, brush motor etc., wherein induction motor is divided into three phase induction motor and monocyclic-start induction motor.Monocyclic-start induction motor simple in structure, firm also obtains single phase poaer supply easily, generally is usually used in the drive motor of family, office, industry, agriculture electrical equipment.Monocyclic-start induction motor can not drive voluntarily, except main coil, also have secondary coil or the actuating coil that last phase difference is arranged with main coil in order to produce driving moment, generally the rotary speed of the secondary coil 70%-80% that reaches the speed same period just should separate secondary coil from main coil, therefore is provided with centrifugal switch.
Seeing also Fig. 1 to shown in Figure 3, is the structure of existing centrifugal switch, and Fig. 1 is the stereogram of existing centrifugal switch, and Fig. 2 is the end view of existing centrifugal switch, and Fig. 3 is the control lever stereogram of existing centrifugal switch.
Existing centrifugal switch, it comprises: with install on the motor drive shaft 12 of pivot 11 secure bond, its both sides form the sleeve pipe 40 that is provided with centrifugal guide plate 41; The centrifugal force that produces when being clipped in the middle of the centrifugal cone guidance 41 because of motor drive shaft 12 rotations breaks away from the centrifugal cone 50 of axle; Combine with centrifugal cone 50 upper ends 51 pivots, centrifugal cone 50 can touch centrifugal guide plate 41 when breaking away from motor drive shafts 12 and the slip ring 60 that slides with driving shaft 12; The control lever 30 that one end and slip ring 60 join and move up and down with slip ring; And the switch enclosure with switching function 20 that moves with control lever 30.
Above-mentioned two centrifugal cone 50 are oppositely arranged, and the both sides of centrifugal cone 50 form and are provided with the slip resting guide.Its slip resting guide is connected with spring respectively, and to make above-mentioned two centrifugal cone 50 can be that inwardly shrink at the center with driving shaft 12.
Above-mentioned switch enclosure 20, it comprises: the switch enclosure body 21 that is provided with the switch pivot joint that combines with above-mentioned control lever 30 pivots; Be fixed on the fixed terminal 23 of above-mentioned body 21; And be fixed on the above-mentioned body 21, an end can move freely and fixed terminal 23 contact or the movable terminal 22 that separates.
Above-mentioned control lever 30, it comprises: the sliding contact 31 that contacts with slip ring 60 outsides 61; With switch enclosure pivot joint portion 24 pivots pivot joint 32 that combine, that be arranged on the sliding contact other end; With sliding contact 31 with the plane at driving shaft 12 right angles on move the movable terminal button 33 that touches movable terminal 22.Above-mentioned movable terminal 22 can touch slip ring and sliding contact 31 is applied active force for the sliding contact 31 that makes control lever 30.
During motor drive shaft 12 rotation, centrifugal cone 50 is slided and is separated from along the guide plate 41 of sleeve pipe 40, and the disengaging of centrifugal cone makes pivot be combined in the slip ring 60 of centrifugal cone 50 upper ends 51, moves down along above-mentioned driving shaft 12 with drawing benchmark shown in Figure 2.
Because moving of above-mentioned slip ring 60, the sliding contact 31 of contact on slip ring 60 is middle mind-set driving shaft 12 rotations with pivot joint 32, and movable terminal button 33 is a direction rotation in the same way also, joins with movable terminal 22 and fixed terminal 23.
But the sliding contact 31 of existing centrifugal switch joins with the outside 61 of slip ring 60, so when slip ring 61 moves down with driving shaft 12 fast, sliding contact 31 rotates to driving shaft 12 directions rapidly, thereby the problem of electric arc occurs producing between movable terminal 22 and the fixed terminal 23.
This shows that above-mentioned existing centrifugal switch has above-mentioned defective, and demands urgently further being improved.
In order to solve the problem that said centrifugal switch exists, relevant manufacturer there's no one who doesn't or isn't seeks solution painstakingly, but do not see always that for a long time suitable design finished by development, and common product does not have appropriate structure to address the above problem, and this obviously is the problem that the anxious desire of relevant dealer solves.
Because the defective that above-mentioned existing centrifugal switch exists, the inventor is based on being engaged in this type of product design manufacturing abundant for many years practical experience and professional knowledge, actively studied innovation, in the hope of founding a kind of centrifugal switch of new structure, can improve general existing on the market conventional centrifugal switch structure, make it have more practicality.Through constantly research, design, and after studying sample and improvement repeatedly, create the present invention who has practical value finally.
Summary of the invention
Main purpose of the present invention is, overcomes the defective that existing centrifugal switch exists, and is control lever to be moved naturally and the generation that prevents electric arc and a kind of centrifugal switch of new structure, technical problem underlying to be solved are provided.
Purpose of the present invention and to solve its technical problem underlying be to adopt following technical scheme to realize.A kind of centrifugal switch that is fixed on motor drive shaft according to the present invention proposes comprises that both sides form the sleeve pipe of centrifugal guide plate; Be clipped in the centrifugal cone of the centrifugal force disengaging axle that produces when centrifugal guide plate is middle to be rotated because of motor drive shaft; Combine with the centrifugal cone pivot, centrifugal cone touches the slip ring of centrifugal guide plate when breaking away from motor drive shaft; The control lever that one end and slip ring join and move up and down with slip ring; The switch enclosure that moves its fixed terminal and movable terminal contact or separate with control lever.Its technical essential mainly is that control lever forms and to be provided with the sliding contact that contacts in the upper surface of slip ring and move up and down with slip ring.Structure of the present invention can prevent the generation of electric arc between movable terminal and the fixed terminal.
The object of the invention to solve the technical problems can also adopt following technical measures further to realize.
Aforesaid centrifugal switch, wherein said control lever comprise pivot joint that is connected on the switch enclosure and the movable terminal button of giving prominence to formation along the pivot joint length direction; Sliding contact is to form give prominence to vertical with rotating shaft of pivot joint; Described switch enclosure comprises the movable terminal that joins with the movable terminal button and move along its horizontal direction, and with the fixed terminal that moves contact with it or separate of movable terminal.
Aforesaid centrifugal switch, the shape of wherein said sliding contact are the shapes that forms sharp type with the friction of slip ring for reducing.
The present invention compared with prior art has tangible advantage and beneficial effect.By above technical scheme as can be known, aforesaid centrifugal switch structure of the present invention comprises sleeve pipe, centrifugal cone, slip ring, control lever, and switch enclosure, and wherein control lever forms and is provided with the sliding contact that contacts in the upper surface of slip ring and move up and down with slip ring.According to embodiments of the invention, at first,, thereby movable terminal can be contacted or separate naturally with fixed terminal because sliding contact is connected on slip ring upper surface and mobile with slip ring.Can prevent the generation of the electric arc between movable terminal and the fixed terminal in succession.Also have, the slip ring contact can reduce with sharp type shape and slide plate between friction.
In sum, the centrifugal switch of special construction of the present invention, have above-mentioned many advantages and practical value, and in like product, do not see have similar structural design to publish or use, no matter and its structurally or bigger improvement is all arranged on the function, have large improvement technically, and produced handy and practical effect, and have the effect of enhancement really, thus be suitable for practicality more, really be a new and innovative, progressive, practical new design.
Above-mentioned explanation only is the general introduction of technical solution of the present invention, for can clearer understanding technological means of the present invention, and can be implemented according to the content of specification, below with preferred embodiment of the present invention and conjunction with figs. describe in detail as after.
The specific embodiment of the present invention is provided in detail by following examples and accompanying drawing thereof.
Description of drawings
Fig. 1 is the stereogram of existing centrifugal switch.
Fig. 2 is the end view of existing centrifugal switch.
Fig. 3 is the control lever stereogram of existing centrifugal switch.
Fig. 4 is the stereogram of centrifugal switch of the present invention.
Fig. 5 is the end view of centrifugal switch shown in Figure 4.
Fig. 6 is the stereogram of the control lever of centrifugal switch shown in Figure 4.
11 ... pivot 12 ... driving shaft
20 ... switch enclosure 21 ... the switch enclosure body
22 ... movable terminal 23 ... fixed terminal
24 ... pivot joint portion 30 ... control lever
31 ... sliding contact 32 ... pivot joint
33 ... movable terminal button 40 ... sleeve pipe
41 ... centrifugal guide plate 50 ... centrifugal cone
51 ... centrifugal cone upper end 60 ... slip ring
61 ... slip ring side 62 ... the slip ring upper surface
120 ... switch enclosure 121 ... the switch enclosure body
122 ... movable terminal 123 ... fixed terminal
124 ... pivot joint 125 ... rotating shaft
130 ... control lever 131 ... sliding contact
132 ... movable terminal button 133 ... hinge
Embodiment
Below in conjunction with accompanying drawing and preferred embodiment, to its embodiment of centrifugal switch, structure, feature and the effect thereof that foundation the present invention proposes, describe in detail as after.The identical part of all and above-mentioned prior art centrifugal switch is used identical with it label symbol.
See also Fig. 4, Fig. 5, shown in Figure 6, Fig. 4 is the solid of centrifugal switch of the present invention, and Fig. 5 is the end view of centrifugal switch shown in Figure 4, and Fig. 6 is the stereogram of the control lever of centrifugal switch shown in Figure 4.
A kind of centrifugal switch that is fixed on motor drive shaft according to the present invention proposes comprises that both sides form the sleeve pipe 40 of centrifugal guide plate; Be clipped in the centrifugal cone 50 of the centrifugal force disengaging axle that produces when centrifugal guide plate is middle to be rotated because of motor drive shaft; Combine with the centrifugal cone pivot, centrifugal cone touches the slip ring 60 of centrifugal guide plate when breaking away from motor drive shaft; The control lever 130 that one end and slip ring join and move up and down with slip ring; With the switch enclosure 120 that moves its fixed terminal and movable terminal contact or separate of control lever, wherein control lever 130 forms and is provided with the sliding contact 131 that contacts in the upper surface of slip ring 60 and move up and down with slip ring.
Centrifugal switch of the present invention is compared with existing centrifugal switch, has only control lever 130 different with the structure of switch enclosure 120, and other structure is the same.Stress the structure of above-mentioned control lever 130 and switch enclosure 120 below.
Above-mentioned control lever 130, be combined in hinge 133 and formed to the vertical direction of rotating shaft 125 is outstanding from hinge 133 by pivot, it comprises the join sliding contact 131 that can move up and down with slip ring 60 and at the movable terminal button 132 of hinge 133 by the outstanding formation of length direction of driving shaft 12 of upper surface 62 with slip ring 60.In order to reduce the friction with slip ring (60), the preferably sharp type of the shape of sliding contact (131).
Above-mentioned switch enclosure 120, it comprises: form the switch enclosure body 121 that is provided with the switch enclosure pivot joint 124 that engages with control lever 130 pivots; Be fixed on the fixed terminal 123 of above-mentioned body 121; And be fixed on the casing 121, an end can move freely and fixed terminal 123 contact or the movable terminal 122 that separates.Exert pressure for fixed terminal 123, movable terminal 122 bends to circular arc, and himself also can play spring.
The axis of the rotating shaft 125 of above-mentioned switch enclosure pivot joint 124 and driving shaft 12 axis are orthogonal.The sliding contact 131 of above-mentioned control lever 130, drawing benchmark as shown in Figure 6 moves up and down, and above-mentioned movable terminal button 132 is the drawing benchmark move left and right by Fig. 6.
Be connected on when sliding contact (131) on the upper surface (62) of above-mentioned slip ring (60), if give movable terminal button (132) reinforcing, movable terminal (122) can move and move along with above-mentioned movable terminal button (132) move left and right.
Situation when the following describes centrifugal switch one embodiment of the present invention and working.
During motor drive shaft 12 rotation, centrifugal cone 50 is with the disengaging of the guide plate 41 of sleeve pipe 40, and centrifugal cone 50 breaks away from the slip ring 60 that pivots are bonded on centrifugal cone 50 upper ends 51, and the slip ring of this moment 60 is that benchmark moves down with driving shaft 12 with Fig. 4.
With moving of above-mentioned slip ring 60, contact is that the center is that benchmark rotates by counter clockwise direction with Fig. 6 at the sliding contact 131 of slip ring 60 upper surfaces 62 with hinge 133, thereby glides with slip ring 60.Also together rotate by counterclockwise rotating movable terminal button 132 with sliding contact 131, thereby movable terminal 122 is contacted with fixed terminal 123 by unified direction.
As mentioned above, embodiments of the invention are sliding contacts with the contacted state in slip ring upper surface under, move with slip ring, thereby movable terminal is contacted naturally with fixed terminal or separate.Also prevent simultaneously the generation of the electric arc between movable terminal and the fixed terminal.Be that sharp type can reduce the friction with slide plate also because of the shape of sliding contact.
The technological innovation of the centrifugal switch of the present invention that above-mentioned structure like this constitutes all has many saving graces for technical staff of the same trade now, and the progressive that possesses skills really.
The above, it only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, any those skilled in the art may utilize the technology contents of above-mentioned announcement to be changed or be modified to the equivalent embodiment of equivalent variations, but every technical solution of the present invention content that do not break away from,, all still belong in the scope of technical solution of the present invention any simple modification, equivalent variations and modification that above embodiment did according to technical spirit of the present invention.
Claims (3)
1, a kind of centrifugal switch that is fixed on motor drive shaft comprises that its both sides form the sleeve pipe (40) that is provided with centrifugal guide plate; Be clipped in the centrifugal cone (50) of the centrifugal force disengaging axle that produces when centrifugal guide plate is middle to be rotated because of motor drive shaft; Combine with centrifugal cone (50) pivot, centrifugal cone touches the slip ring (60) of centrifugal guide plate when breaking away from motor drive shaft; The control lever (130) that one end and slip ring (60) join and move up and down with slip ring (60); It is provided with the movable terminal (122) of the mobile contact of control lever (130) or separation and the switch enclosure (120) of fixed terminal (123), it is characterized in that:
Described control lever (130) forms and to be provided with the sliding contact (131) that contacts with it in the upper surface (62) of slip ring (60) and move up and down with described slip ring (60).
2, centrifugal switch according to claim 1 is characterized in that wherein said control lever (130) comprises pivot joint (124) that is connected on the switch enclosure (120) and the movable terminal button (132) of giving prominence to formation along this pivot joint length direction; Described sliding contact (131) forms give prominence to vertical with rotating shaft (125) of pivot joint; Described switch enclosure (120) comprises the movable terminal (122) that joins with movable terminal button (132) and move along its horizontal direction, and with the fixed terminal (123) that moves contact with it or separate of movable terminal (122).
3, centrifugal switch according to claim 1 and 2, the shape that it is characterized in that wherein said sliding contact (131) are the shapes of the sharp type that forms for the friction that reduces itself and slip ring (60).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021565309A CN1306534C (en) | 2002-12-16 | 2002-12-16 | Centrifugal switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021565309A CN1306534C (en) | 2002-12-16 | 2002-12-16 | Centrifugal switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1508830A true CN1508830A (en) | 2004-06-30 |
| CN1306534C CN1306534C (en) | 2007-03-21 |
Family
ID=34236257
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB021565309A Expired - Fee Related CN1306534C (en) | 2002-12-16 | 2002-12-16 | Centrifugal switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1306534C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101587797B (en) * | 2009-06-21 | 2012-04-25 | 鲁文龙 | Centrifugal switch suitable for motor driving |
| CN106562753A (en) * | 2016-11-09 | 2017-04-19 | 杭州三花家电热管理系统有限公司 | Control switch, dehumidifying device and dish washer |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4386290A (en) * | 1981-04-30 | 1983-05-31 | Marathon Electric Manufacturing Corp. | Centrifugal actuator for A.C. induction motor |
-
2002
- 2002-12-16 CN CNB021565309A patent/CN1306534C/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101587797B (en) * | 2009-06-21 | 2012-04-25 | 鲁文龙 | Centrifugal switch suitable for motor driving |
| CN106562753A (en) * | 2016-11-09 | 2017-04-19 | 杭州三花家电热管理系统有限公司 | Control switch, dehumidifying device and dish washer |
| CN106562753B (en) * | 2016-11-09 | 2019-11-19 | 三花亚威科电器设备（芜湖）有限公司 | Control switch, dehumidification device and dish-washing machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1306534C (en) | 2007-03-21 |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070321 Termination date: 20100118 |