CN100456406C - Centrifugal switch structure of single phase motor - Google Patents
Centrifugal switch structure of single phase motor Download PDFInfo
- Publication number
- CN100456406C CN100456406C CNB2004100194380A CN200410019438A CN100456406C CN 100456406 C CN100456406 C CN 100456406C CN B2004100194380 A CNB2004100194380 A CN B2004100194380A CN 200410019438 A CN200410019438 A CN 200410019438A CN 100456406 C CN100456406 C CN 100456406C
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- Prior art keywords
- circle
- center
- switch
- core shaft
- gyroaxis
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Abstract
The present invention discloses technology of the switch structure of the center of circle of a single-phase motor. In the present invention, in a single phase motor which is provided with a rotating revolving shaft on which a main coil and an auxiliary coil are installed, the main structure of the single phase motor is composed of a maneuver switch, a movable part, a center of circle shaft and an elastic band, wherein the maneuver switch controls a power supply which is supplied to the auxiliary coil; the movable part is arranged in a position close to the peripheral surface of the and is connected with the revolving shaft into a whole; the center of circle shaft is arranged on the peripheral surface of the movable part in the radiation direction; the elastic band prevents the center of circle shaft from falling off; when the center of circle shaft rotates at the speed below a certain speed, the elastic band can lead the center of circle shaft to restore the circle; the elastic band surrounds on the center of circle shaft. Consequently, the number of the forming parts and the operation procedures of the center of circle switch are reduced, and thus, productivity is improved.
Description
Technical field
The invention belongs to the motor technology field, particularly relate to the center of circle construction of switch of monophase machine, more detail is the structure of having improved center of circle switch and make the invention that under simpler structure, obtains same effect.
Background technology
In general motor is a kind of machine that electric energy is converted to mechanical energy, can be divided into direct current machine and alternating current machine according to the difference of using power supply, and described alternating current machine is divided into inducing motor, the same period motor and power transformation device motor etc., and inducing motor also is divided into 3 phase motor and monophase machines.
Also have, monophase machine is in general simple in structure firm, and single phase poaer supply also becomes more readily available, so home-use, affairs are used, industrial, utilized widely on the electrical equipment that agricultural is used or the like, but, ancillary coil or motor-driven coil are being arranged so except main coil, also will possess because it can not start automatically, in general when the speed of gyration of revolution reaches the 70-80% of the speed same period, possesses the center of circle switch that has to the main coil open circuit on the ancillary coil.
Below, the center of circle switch that reference diagram is faced monophase machine in the past is described in detail, Fig. 1 is the side view of the center of circle switch of monophase machine in the past, Fig. 2 is the side view of the axle bucket used of the center of circle switch of monophase machine in the past, Fig. 3 is the side view of circle core shaft in the past, Fig. 4 is the side view of the sliding tube used of the center of circle switch of monophase machine in the past, Fig. 5 is the enlarged drawing of the A part of Fig. 4, Fig. 6 is the A-stage figure of the circle core shaft used of the center of circle switch of monophase machine in the past, and Fig. 7 is the state diagram of circle core shaft under the effect of center of circle power that the center of circle switch of monophase machine is in the past used.
As shown in the figure, the center of circle switch of monophase machine is the axle bucket (20) that is linked into an integrated entity by the gyroaxis (10) with monophase machine, can turn round simultaneously axle bucket (20) moved along the axis direction of gyroaxis (10) with axle bucket (20) and regulate motor-driven switch (60) and make the ancillary coil of monophase machine from the sliding tube (30) of main coil open circuit, an a pair of circle core shaft (40) that the center of circle power sliding tube (30) the when combination of a side and sliding tube (30) relative motion along with the revolution of gyroaxis (10) moves axle bucket (20) along the direction of axis and an end separately and circle core shaft (40) combine with circle core shaft (40) mutually approaching direction apply a pair of spring (50) formation of elastic force.
Axle bucket (20) is can accommodate drum portion (21) in conjunction with the drum shape of gyroaxis (10) by inside, prolong the guide portion (23) that aimming circle axles (40) move along two side directions of drum portion (21), and along the two sides of the length direction of drum portion (21) outstanding formation and sliding tube (30) rotating while of one swivelling pipe (22) formation movably.
Circle core shaft (40) is by horizontal part (41), almost become the vertical component effect (42) at right angle with horizontal part (41), and almost become leg-of-mutton both sides (43) and constitute, on horizontal part (41), forming the spring support member (44) of outstanding bending, making can have an end of spring (50) in conjunction with supporting to possess guiding accepting groove (45) on the vertical component effect (42) and connecting in conjunction with guide portion (23) on each sidepiece (43).
Sliding tube (30) is to form the drum (31) of accepting groove along long direction by can carry out relative motion in the outside of drum portion (21) on inner peripheral surface, contacting the disk (32) that motor-driven switch (60) is carried out switch at an end of drum (31) and the brace (61) of motor-driven switch (60), and be arranged on the part that makes horizontal part (41) one sides of circle core shaft (40) on the both sides of drum (31) and can carry out the circle core shaft accepting groove (34) with the circumferencial direction opening of gyroaxis (10) of relative motion and constitute.
Circle core shaft accepting groove (34) is to fall in the central part (35) that forms by a side of the horizontal part (41) of circle core shaft (40) part with certain degree of depth, and a side of described central part (35) continuous with center of circle power moment from central division (35) circle core shaft (40) of breaking away from constituted by the recovery guide surface (36) that the elastic force of spring restores.
Restoring guide surface (36) is to constitute in 2 stages, and the circle core shaft that breaks away from is from central division restored automatically.
So the running of the center of circle switch of monophase machine in the past is at gyroaxis (10) when stopping, one side of circle core shaft (40) is by on the central part (35) of the circle core shaft accepting groove (34) of the sliding tube that elastic force is placed in of spring (50) (30), and sliding tube (30) is relatively far away from guide portion (23).
At this moment, the brace (61) of motor-driven switch (60) exerts pressure for disk (32), promptly is in the state that can give the ancillary coil service voltage, and the state rotating shaft next time (10) that the power supply of main coil applies to ancillary coil under such state begins revolution.
When the speed of gyration of gyroaxis (10) reaches the 70-80% of the speed same period, the center of circle power that acts on circle core shaft (40) is bigger than the elastic force of spring (50), when one side of circle core shaft (40) moves laterally along with guide portion (23) and sliding tube (30) opposite side that can carry out relative motion move to guide portion (23), so sliding tube (30) along the axis direction of gyroaxis (10) to guide portion (23) side shifting.
At this moment, the brace (61) of motor-driven switch (60) will stop to exert pressure to disk (32), so ancillary coil will be opened a way to main coil, gyroaxis in this time (10) turns round with regard to the power supply that just is subjected to the main coil supply.
And, side according to the elastic force circle core shaft (40) of spring (50) when the revolution of gyroaxis (10) finishes is just thought medial movement along guide portion (23), can move to the opposite direction of guide portion (23) simultaneously with the opposite side that sliding tube (30) carry out relative motion, so sliding tube (30) moves to the opposite direction of guide portion (23) along the axis direction of gyroaxis (10), revert to original state, the brace (61) of disk (32) and motor-driven switch (60) contacts and pressurizes at this moment, so become the closed circuit state that ancillary coil is connected main coil.
But, monophase machine center of circle switch in the past is the brace (61) that operates motor-driven switch (60) according to the speed of gyration of gyroaxis (10), reach control and supply with the power supply purpose of ancillary coil, need drum (20) for this purpose, circle core shaft (40), sliding tube many parts such as (30), and the also very complicated flow chart that improved of the structure of its combination, cost has risen mass-produced the time.
Summary of the invention
Technology provided by the present invention is that the problem points that produces at conventional art is improved, the objective of the invention is to improve the structure of the center of circle switch of monophase machine, the ten minutes that the structure of make setting up is come easily simple impelled and improved productivity also reduced cost mass-produced the time.
In order to reach the described purpose structure of the center of circle switch of monophase machine in the present invention, in described monophase machine, comprise: main coil, ancillary coil, gyroaxis, gyroaxis is turned round by the coil supply power; The brace of motor-driven switch, motor-driven switch, being controlled to ancillary coil by described brace provides power supply; Movable member is positioned at the outer peripheral face proximity of described motor-driven switch, and fuses with gyroaxis; When rotating more than the 70-80% of gyroaxis with the speed same period, movable member is that center radiation direction moves with the gyroaxis, and described motor-driven switch is come into operation; And circle core shaft, at the outer peripheral face of movable member with the setting of radiation direction; Elastic webbing is centered around on the described circle core shaft, come off to prevent circle core shaft, and when rotating below the 70-80% of circle core shaft with the speed same period, the circle core shaft of described elasticity belt can revert to circle.
And, twining soft band for the friction that reduces between described elastic webbing and the brace at the elastic webbing outer peripheral face in the described monophase machine.
And described movable member is having the appearance of disc-shape, and possesses concavity at its outer peripheral face, and prolongs the insertion groove that formation can be inserted circle core shaft along outer peripheral face.
Also have, described circle core shaft is arranged by the ring-type circle core shaft sheet with radian and is constituted.
The effect of invention: the center of circle switch of the monophase machine among such the present invention as described be when gyroaxis when being rotated more than certain speed; along with the circle core shaft in the insertion groove of centrifugal force movable member is subjected to displacement to the radiation direction; open a way for the brace of the motor-driven switch ancillary coil of exerting pressure from main coil; and then along with the main coil gyroaxis will be proceeded revolution; formed the structure of protection monophase machine; so structure is in the past compared and had simple structure but can obtain same effect, and set up operation and become very simple that thrifty cost of manufacture has improved productivity in the middle of a large amount of production.
Also have, the operation of comparing center of circle switch with structure in the past is simple, thereby has improved its useful life.
Description of drawings
Fig. 1 is the side view of the center of circle switch of monophase machine in the past.
Fig. 2 is the side view of the axle bucket used of the center of circle switch of monophase machine in the past.
Fig. 3 is the side view of circle core shaft in the past.
Fig. 4 is the side view of the sliding tube used of the center of circle switch of monophase machine in the past.
Fig. 5 is the enlarged drawing of the A part of Fig. 4.
Fig. 6 is the A-stage figure of the circle core shaft used of the center of circle switch of monophase machine in the past.
Fig. 7 is the state diagram of circle core shaft under action of centrifugal force that the center of circle switch of monophase machine is in the past used.
Fig. 8 is the side view of the center of circle switch of the monophase machine among the present invention.
Fig. 9 is the plane graph of the center of circle switch of the monophase machine among the present invention.
Figure 10 and Figure 11 are the sectional drawings of " B-B " shown in Figure 8 part.
Figure 10 is the sectional drawing of center of circle switch state in inoperative.
Figure 11 is the sectional drawing of center of circle switch in working order.
Explanation to main symbol on the drawing:
10: gyroaxis 120: movable member
121: insertion groove 122: circle core shaft
123: elastic webbing 124: soft band
Embodiment
Be described in detail below with reference to the structure of drawing to the center of circle switch of the monophase machine among the present invention, the part the same with in the past structure adopts the same symbol to describe.
Fig. 8 is the side view of the center of circle switch of the monophase machine among the present invention, Fig. 9 is the plane graph of the center of circle switch of the monophase machine among the present invention, Figure 10 and Figure 11 are the sectional drawings of " B-B " shown in Figure 8 part, Figure 10 is the sectional drawing of center of circle switch state in inoperative, and Figure 11 is the sectional drawing of center of circle switch in working order.
As shown in the figure, the movable member of the center of circle switch of the monophase machine among the present invention is that gyroaxis (10) one with monophase machine is combined into, and its movable member (120) is having the appearance of disc-shape, its outer peripheral face has the groove of certain depth, is prolonging along outer peripheral face and is forming insertion groove (121).
Also have, being installed with on the insertion groove (121) with gyroaxis (10) is that the center can be radiated to the circle core shaft (122) that moves, simultaneously in order to twine at the flexible band of periphery (123) of circle core shaft (122) the disengaging installation site that prevents circle core shaft (122), and on the periphery of elastic webbing (123), also twining soft band (124) in order to reduce friction.
Described circle core shaft (122) be have and internal diameter that the bottom surface of insertion groove (121) is corresponding mutually annular equidistantly and have the circle core shaft sheet (122a) of certain radian to be arranged in order and circularize shape and be inserted into insertion groove (121) lining, the circle core shaft (122) that constitutes by each circle core shaft sheet (122a) with gyroaxis (10) be benchmark to radiation to moving, on the outer peripheral face of circle core shaft sheet (122a), be provided with and can make elastic webbing with elastic force (123) and the soft band (124) that reverts to original state to radiation to mobile circle core shaft sheet (122a) in order to prevent to break away from insertion groove (121) simultaneously.
The running of the center of circle switch of such monophase machine of the present invention as described is when gyroaxis (10) stops, circle core shaft (122) is along with the elastic force of elastic webbing (123) becomes the state of tight card to insertion groove (121) bottom surface of movable member (120) as shown in Figure 10, the circle core shaft of with tight card (122), the brace (61) of motor-driven switch (60) is in the state that voltage is provided to ancillary coil, introduce power supply gyroaxis (10) and then begin rotation on main coil and ancillary coil under such state, the main coil of motor-driven switch this moment (60) and the tie point of ancillary coil are more appropriate with structure opposite direction position in the past.
Also have, as shown in Figure 11 when the speed of gyration of gyroaxis (10) reaches the 70-80% of the speed same period, because the gyroscopic action of gyroaxis (10) is bigger than the elastic force of elastic webbing (123) in the center of circle power of circle core shaft (122), is that middle mind-set radiation is to certain displacement takes place along with its center of circle power constitutes each circle core shaft sheet (122a) of circle core shaft (122) with gyroaxis (10), at this moment, along with centrifugal force is wrapped in elastic webbing (123) on the circle core shaft (122) and the radius of soft band (124) will enlarge to radiation to the circle core shaft sheet (122a) that moves, give the brace (61) of motor-driven switch (60) the reversing of exerting pressure along with brace (61), motor-driven switch (60) ancillary coil that comes into operation is opened a way from main coil, and gyroaxis (10) is along with main coil continues revolution.
So the center of circle switch of the monophase machine among the present invention be when gyroaxis (10) when being rotated more than certain speed; along with the round axle (122) in the insertion groove (121) of centrifugal force movable member (120) is subjected to displacement to the radiation direction; open a way for the brace (61) of motor-driven switch (60) ancillary coil of exerting pressure from main coil; and then, protected monophase machine along with main coil gyroaxis (10) will be proceeded revolution.At this moment, the tie point of main coil in the motor-driven switch (60) and ancillary coil is appropriate to being reversed with structure in the past.
Claims (4)
1, a kind of structure of center of circle switch of monophase machine is characterized in that comprising in the described monophase machine: main coil, ancillary coil, gyroaxis, and gyroaxis is turned round by the coil supply power; The brace of motor-driven switch, motor-driven switch, being controlled to ancillary coil by described brace provides power supply; Movable member is positioned at the outer peripheral face proximity of described motor-driven switch, and fuses with gyroaxis; When rotating more than the 70-80% of gyroaxis with the speed same period, movable member is that center radiation direction moves with the gyroaxis, and described motor-driven switch is come into operation; And circle core shaft, at the outer peripheral face of movable member with the setting of radiation direction; Elastic webbing is centered around on the described circle core shaft, come off to prevent circle core shaft, and when rotating below the 70-80% of circle core shaft with the speed same period, described elastic webbing makes circle core shaft can revert to circle.
2, the structure of the center of circle switch of monophase machine according to claim 1 is characterized in that twining soft band at the elastic webbing outer peripheral face.
3, the structure of the center of circle switch of monophase machine according to claim 1 is characterized in that movable member is having the appearance of disc-shape, and possesses concavity at its outer peripheral face, and prolongs the insertion groove that formation can be inserted circle core shaft along outer peripheral face.
4, the structure of the center of circle switch of monophase machine according to claim 1 is characterized in that circle core shaft is made of the ring-type circle core shaft sheet arrangement with radian.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100194380A CN100456406C (en) | 2004-05-27 | 2004-05-27 | Centrifugal switch structure of single phase motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100194380A CN100456406C (en) | 2004-05-27 | 2004-05-27 | Centrifugal switch structure of single phase motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1705053A CN1705053A (en) | 2005-12-07 |
| CN100456406C true CN100456406C (en) | 2009-01-28 |
Family
ID=35577425
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100194380A Expired - Fee Related CN100456406C (en) | 2004-05-27 | 2004-05-27 | Centrifugal switch structure of single phase motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100456406C (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5153471A (en) * | 1991-05-16 | 1992-10-06 | Emerson Electric Co. | Positioning and limiting structure for an electric motor centrifugal actuator |
| US5283405A (en) * | 1992-05-18 | 1994-02-01 | Marathon Electric Mfg. Corp. | Enclosed electrical contact assembly for dynamoelectric machines |
| CN1153571A (en) * | 1994-06-15 | 1997-07-02 | 伊美申公司 | Motor control of tape tension in belt cartridge |
-
2004
- 2004-05-27 CN CNB2004100194380A patent/CN100456406C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5153471A (en) * | 1991-05-16 | 1992-10-06 | Emerson Electric Co. | Positioning and limiting structure for an electric motor centrifugal actuator |
| US5283405A (en) * | 1992-05-18 | 1994-02-01 | Marathon Electric Mfg. Corp. | Enclosed electrical contact assembly for dynamoelectric machines |
| CN1153571A (en) * | 1994-06-15 | 1997-07-02 | 伊美申公司 | Motor control of tape tension in belt cartridge |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1705053A (en) | 2005-12-07 |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
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| GR01 | Patent grant | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090128 |