CN102738968A - Fan-type motor centrifugal switch - Google Patents
Fan-type motor centrifugal switch Download PDFInfo
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- CN102738968A CN102738968A CN2012102295291A CN201210229529A CN102738968A CN 102738968 A CN102738968 A CN 102738968A CN 2012102295291 A CN2012102295291 A CN 2012102295291A CN 201210229529 A CN201210229529 A CN 201210229529A CN 102738968 A CN102738968 A CN 102738968A
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- centrifugal
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- switch
- spring
- type motor
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Abstract
The invention discloses a fan-type motor centrifugal switch which relates to the field of an electric appliance switch. The fan-type motor centrifugal switch is provided with a rotating shaft, wherein the rotating shaft is provided with a fan impeller; the upper side and the lower side of the front side surface of the fan impeller are provided with bidirectional spring seats; the spindle on the front side of the fan impeller is provided with a centrifugal counter weight snap-gauge; the centrifugal counter weight snap-gauge is clamped between the two spring seats; the left end part and the right end part of the centrifugal counter weight snap-gauge are hinged with centrifugal plates; the upper end part and the lower end part of each centrifugal plate are provided with elastic sheathing arms; the centrifugal plate and the centrifugal counter weight snap-gauge are hinged with the each other; each elastic sheathing arm is sheathed with a closed spring; the other end of the closed spring is abutted against the spring seats; the rear side of the fan impeller is provided with an insulation plate; and a return spring and a travel switch are arranged between the insulation plate and the travel switch. According to the fan-type motor centrifugal switch disclosed by the invention, each component can be made of ABS (acrylonitrile butadiene styrene) plastic products, and the production and the use of materials are both environment-friendly and free from pollution. The fan-type motor centrifugal switch has the advantages of small volume, light weight, cost saving, low structural requirement on a motor shaft, manpower saving, low cost, convenience in installing and maintaining and high effective use ratio of the inside of a motor body, and the improvement of power of the motor.
Description
Technical field
The present invention relates to the appliance switch field, say it is a kind of safe environment protection type, with low cost, installation and maintenance fan-type motor centrifugal switch easily detailedly.
Background technology
We know; By starting the loop very great start-up current is provided during electric motor starting, starts the loop during operate as normal and break off, less current is provided by the work loop; Therefore prior motor must be equiped with the centrifugal switch of control electric motor starting loop works state; The contact of domestic and international existing centrifugal switch is installed on the motor internal end cap, and the sedimentator of centrifugal switch is installed in the interior rotating shaft of motor, and the electric motor starting load current is very big; Cause the moving contact elasticity of spring leaf to weaken, initiation is decided the moving contact adhesion and is burnt out motor; Motor rotation temperature rise in opportunity, there is certain leakage field in rotor, so centrifugal switch selection standard is single, can't replace; The person does not reach the starting technique requirement, causes electrical fault, existing centrifugal switch decide the contact fixed head, adopt the glass fiber fabric swatch; The sedimentator insulating case is the powder concrete material, and two kinds of materials can not reclaiming, and processing waste material and discarded switch are imbedded underground as rubbish; Serious environment pollution is buried permanent stealthy nuclear sheet to the earth, destroys the ecological balance.Two kinds of materials are in the process of manufacturing a finished product, and the glass dust is serious to the health hazards of people's body and mind, suffer from the patient and can't cure.The movable contact spring, preclude the use of skin elasticity of zinc, copper or stainless steel, the balance of centrifugal switch brass or stainless steel sheet used to prevent magnetic flux leakage caused by the switching control of the movable contact and the fixed contact spring piece large , only fifty percent material utilization, leading to cost Gao; motor shaft is provided for external cooling fans, centrifugal switch mounted on the motor,? fans and centrifugal switch individually set, increase the length of the shaft, defining the effective utilization of the motor body, not to mention Gao motor power, centrifugal switch mounted inside the motor. existence motor repair, replacement switch inconvenience other shortcomings.
Summary of the invention
The objective of the invention is to solve the deficiency of above-mentioned prior art, provide a kind of with the material environmental protection, reduce to pollute, simple in structure, cost is low, the fan-type motor centrifugal switch that installation, maintenance is easy.
The present invention solves the not enough technical scheme that is adopted of above-mentioned prior art:
A kind of fan-type motor centrifugal switch is provided with rotating shaft, can be arranged with blast fan in axial sliding in the rotating shaft; It is characterized in that blast fan leading flank upper and lower (left and right) both sides are provided with the bidirectional spring seat; The rotating shaft of blast fan front side is provided with the governor weight clamp, and governor weight clamp upper and lower (left and right) both sides are stuck between two spring bases, and governor weight clamp left and right (upper and lower) both ends are hinged with centrifugal plate; Centrifugal plate upper/lower terminal portion and spring base opposite position are respectively equipped with spring socket arm; The middle part of centrifugal plate and governor weight clamp are hinged, and are socketed with closing spring on the spring socket arm, and the closing spring other end and spring base offset; The blast fan rear side is provided with insulation board, is provided with back-moving spring and travel switch between insulation board and blast fan.
Travel switch described in the present invention comprises that shell fragment, switch decide contact and switch movable contact; Shell fragment one end is fixed on the insulation board; The blast fan rear side is upspring, leaned against to the other end, and switch is decided contact be located at insulation board and the shell fragment relative with switch movable contact and upspring on the end.Shell fragment supporting switch moving contact plays the effect of back-moving spring simultaneously.
Insulation board described in the present invention and shell fragment are upspring and are provided with back-moving spring between the end.Avoiding after the shell fragment fatigue can't operate as normal and burn out motor, has strengthened the reliability of switch.
Insulation board described in the present invention is through propping up the rear side that is erected at blast fan.
The and arranged on left and right sides of the governor weight clamp described in this is bright is respectively equipped with vertical draw-in groove, and centrifugal plate is provided with the hook that matches with vertical draw-in groove, and centrifugal plate is hinged on the sedimentator counterweight clamp through hook, vertical draw-in groove grab.
Rotating shaft described in this is bright is an axle sleeve.Be convenient to being connected of the present invention and motor shaft.
Centrifugal plate front side portion described in the present invention is provided with balancing weight.
Be equipped with plural travel switch between insulation board described in the present invention and blast fan, travel switch is parallel with one another.Whole stability is strong.
During use, the rotating shaft among the present invention is linked to each other with machine shaft, insulation board links to each other with casing, and travel switch is connected on the start-up circuit; When motor was not worked, closing spring support spring seat drove blast fan and slides backward, and the compressing travel switch is closed, and centrifugal plate front side is closed spring and is supporting and slope inwardly; During the motor electrifying startup, start-up circuit and operating circuit are the motor power supply jointly, and toggle speed is fast; When motor reaches rated speed; Centrifugal plate outwards opens under action of centrifugal force, and closing spring reduces blast fan elastic force backward, blast fan under the elastic force of back-moving spring to front slide; Travel switch breaks off, and start-up circuit quits work; In electric motor starting and course of normal operation; The governor weight clamp is between two spring bases all the time; Blast fan can only be on machine shaft before and after fine motion, can not relatively rotate with machine shaft, realized that motor smooth start and fan air-supply are the dual-use function that motor is lowered the temperature.The present invention thoroughly frees centrifugal switch from motor internal, do not receive high temperature, leakage field limit material, and each parts of centrifugal switch can adopt the ABS plastic goods to process, manufacture of materials and use equal environmental protection, pollution-free, and volume is little in light weight, practices thrift cost; Centrifugal switch is arranged on outside the electric machine casing, and is low to the structural requirement of motor shaft, and the motor shaft processing technology is simple, saves the labour, cost is low; The installation, maintenance of motor and centrifugal switch is convenient, reliable operation safety, and effective rate of utilization is high in the motor body, can further improve the power of motor, processes little, the high-power motor of volume.Discharge pollutants up to ten million tons as all using the present invention, every year can reduce in the world wide to nature.
Description of drawings
Fig. 1 is a kind of structural representation of the present invention.
Fig. 2 is the A-A cutaway view of Fig. 1.
Fig. 3 is the structural representation of centrifugal plate among the present invention.
Fig. 4 is the right view of figure.
Fig. 5 is the structural representation of governor weight clamp among the present invention.
Fig. 6 is the left view of Fig. 5.
Embodiment
Fan-type motor centrifugal switch as shown in the figure is provided with rotating shaft, can be arranged with blast fan 5 in axial sliding in the rotating shaft, can find out that from Fig. 1, Fig. 2 rotating shaft is an axle sleeve 8, is more convenient for during use the present invention is linked to each other with motor shaft.The invention is characterized in that the upper and lower both sides of blast fan 5 leading flanks are provided with bidirectional spring seat 2; Bidirectional spring seat 2 is also parallel symmetrically, and the rotating shaft of blast fan 5 front sides is provided with governor weight clamp 9, and governor weight clamp 9 upper and lower both sides are stuck between two spring bases 2; Blast fan 5 relative governor weight clamps 9 can only be moved axially; Can not relatively rotate, as can be seen from the figure, be respectively equipped with the postive stop baffle 3 of governor weight clamp on two spring base 2 opposite faces; Governor weight clamp 9 upper and lower both sides and two postive stop baffles 3 can be abutted against in axial sliding, have strengthened the governor weight clamp and have driven the stationarity that blast fan rotates.The left and right both ends of governor weight clamp are hinged with centrifugal plate 10; As can be seen from the figure; The and arranged on left and right sides of sedimentator counterweight clamp 9 is respectively equipped with vertical draw-in groove 7; Centrifugal plate 10 is provided with the hook 4 that matches with vertical draw-in groove 7, and centrifugal plate 10 is hinged on the sedimentator counterweight clamp 9 through hook 4, vertical draw-in groove 7 grabs.Centrifugal plate 10 upper/lower terminal portions and spring base 2 opposite positions are respectively equipped with spring socket arm 17, and the middle part of centrifugal plate and governor weight clamp are hinged, and are socketed with closing spring 11 on the spring socket arm 17, and closing spring 11 other ends and spring base offset; The blast fan rear side is provided with insulation board 12, and insulation board 12 is through propping up on the motor casing that is erected at the blast fan rear side or on other supports; 5 of insulation board 12 and blast fans are provided with back-moving spring and travel switch; Described travel switch comprises that shell fragment 1, switch decide contact 16 and switch movable contact 15; Shell fragment 1 one ends are fixed on the insulation board 12; Blast fan 5 rear sides are upspring, abutted against to the other end; As can be seen from Figure 2, shell fragment 1 is upspring to hold and is provided with arc bump, and arc bump and blast fan 5 rear sides are abutted against.Switch is decided contact 16 and switch movable contact 15 relative be located at insulation board 12 and shell fragment 1 and is upspring on the end.Shell fragment 1 is decided contact 16 with switch movable contact 15, switch and is matched; Play the effect of travel switch and back-moving spring; Upspringing at insulation board 12 and shell fragment 1 has additional back-moving spring 13 between the end, and avoiding after the shell fragment fatigue can't operate as normal, has strengthened the reliability of switch.
As further improvement of the present invention, can be centrifugal, 10 are provided with balancing weight 6, can increase the suffered centrifugal force of fan centrifugal plate of when rotation, can practice thrift the consumptive material of centrifugal plate.Be equipped with plural travel switch at insulation board 12 and 5 of blast fans, travel switch is parallel with one another.Whole stability is strong.
During use, the rotating shaft among the present invention (axle sleeve) is linked to each other with machine shaft, when rotating shaft is axle sleeve 8, directly is socketed on the machine shaft and gets final product, install more convenient, quick; Insulation board links to each other with casing or support, and travel switch is connected on the start-up circuit, and when motor was not worked, closing spring support spring seat drove blast fan and slides backward, and the compressing travel switch is closed, and centrifugal plate front side is closed spring and is supporting and slope inwardly; During the motor electrifying startup, start-up circuit and operating circuit are the motor power supply jointly, and toggle speed is fast; When motor reached rated speed, centrifugal plate outwards opened under action of centrifugal force, and closing spring reduces blast fan elastic force backward, and to front slide, travel switch breaks off blast fan under the elastic force of back-moving spring, and start-up circuit quits work; In electric motor starting and course of normal operation; The governor weight clamp is between two spring bases all the time; Blast fan can only be on machine shaft before and after fine motion, can not relatively rotate with machine shaft, realized that motor smooth start and fan air-supply are the dual-use function that motor is lowered the temperature.The present invention thoroughly frees centrifugal switch from motor internal, do not receive high temperature, leakage field limit material, and each parts of centrifugal switch can adopt the ABS plastic goods to process, manufacture of materials and use equal environmental protection, pollution-free, and volume is little in light weight, practices thrift cost; Centrifugal switch is arranged on outside the electric machine casing, and is low to the structural requirement of motor shaft, and the motor shaft processing technology is simple, saves the labour, cost is low; The installation, maintenance of motor and centrifugal switch is convenient, reliable operation safety, and effective rate of utilization is high in the motor body, can further improve the power of motor, processes little, the high-power motor of volume.Discharge pollutants up to ten million tons as all using the present invention, every year can reduce in the world wide to nature.
The nouns of locality such as the upper and lower, left and right described in the present invention are the blast fan relative position when being in position as shown in the figure that stops operating.
Claims (8)
1. a fan-type motor centrifugal switch is provided with rotating shaft, can be arranged with blast fan in axial sliding in the rotating shaft; It is characterized in that the upper and lower both sides of blast fan leading flank are provided with the bidirectional spring seat; The rotating shaft of blast fan front side is provided with the governor weight clamp, and the upper and lower both sides of governor weight clamp are stuck between two spring bases, and the left and right both ends of governor weight clamp are hinged with centrifugal plate; Centrifugal plate upper/lower terminal portion and spring base opposite position are respectively equipped with spring socket arm; The middle part of centrifugal plate and governor weight clamp are hinged, and are socketed with closing spring on the spring socket arm, and the closing spring other end and spring base offset; The blast fan rear side is provided with insulation board, is provided with back-moving spring and travel switch between insulation board and blast fan.
2. fan-type motor centrifugal switch according to claim 1; It is characterized in that described travel switch comprises that shell fragment, switch decide contact and switch movable contact; Shell fragment one end is fixed on the insulation board; The blast fan rear side is upspring, leaned against to the other end, and switch is decided contact be located at insulation board and the shell fragment relative with switch movable contact and upspring on the end.
3. fan-type motor centrifugal switch according to claim 2, it is characterized in that described insulation board and shell fragment upspring the end between be provided with back-moving spring.
4. fan-type motor centrifugal switch according to claim 3 is characterized in that described rotating shaft is an axle sleeve.
5. according to claim 1 or 2 or 3 or 4 described fan-type motor centrifugal switches; Its characteristic is respectively equipped with vertical draw-in groove in the and arranged on left and right sides of described governor weight clamp; Centrifugal plate is provided with the hook that matches with vertical draw-in groove, and centrifugal plate is hinged on the sedimentator counterweight clamp through hook, vertical draw-in groove grab.
6. according to claim 1 or 2 or 3 or 4 described fan-type motor centrifugal switches, it is characterized in that described centrifugal plate front side portion is provided with balancing weight.
7. fan-type motor centrifugal switch according to claim 5 is characterized in that described centrifugal plate front side portion is provided with balancing weight.
8. fan-type motor centrifugal switch according to claim 7 is characterized in that being equipped with plural travel switch between described insulation board and blast fan, and is parallel with one another between travel switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102295291A CN102738968A (en) | 2012-07-04 | 2012-07-04 | Fan-type motor centrifugal switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102295291A CN102738968A (en) | 2012-07-04 | 2012-07-04 | Fan-type motor centrifugal switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102738968A true CN102738968A (en) | 2012-10-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102295291A Pending CN102738968A (en) | 2012-07-04 | 2012-07-04 | Fan-type motor centrifugal switch |
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| Country | Link |
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| CN (1) | CN102738968A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105409354A (en) * | 2015-12-04 | 2016-03-23 | 浙江四喜农业机械有限公司 | Rotary cultivator |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2366966Y (en) * | 1999-03-31 | 2000-03-01 | 张群育 | Centrifugal switch for induction motor |
| CN2539331Y (en) * | 2002-03-14 | 2003-03-05 | 隆鑫集团有限公司 | Rotating speed protector for generator set |
| KR20110089746A (en) * | 2010-02-01 | 2011-08-09 | 엘지전자 주식회사 | Centrifugal switch for electric motor |
-
2012
- 2012-07-04 CN CN2012102295291A patent/CN102738968A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2366966Y (en) * | 1999-03-31 | 2000-03-01 | 张群育 | Centrifugal switch for induction motor |
| CN2539331Y (en) * | 2002-03-14 | 2003-03-05 | 隆鑫集团有限公司 | Rotating speed protector for generator set |
| KR20110089746A (en) * | 2010-02-01 | 2011-08-09 | 엘지전자 주식회사 | Centrifugal switch for electric motor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105409354A (en) * | 2015-12-04 | 2016-03-23 | 浙江四喜农业机械有限公司 | Rotary cultivator |
| CN105409354B (en) * | 2015-12-04 | 2017-10-10 | 浙江四喜农业机械有限公司 | Rotary cultivator |
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| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20121017 |