CN202423031U - Travel switch of drain valve micromotor - Google Patents
Travel switch of drain valve micromotor Download PDFInfo
- Publication number
- CN202423031U CN202423031U CN2011205269001U CN201120526900U CN202423031U CN 202423031 U CN202423031 U CN 202423031U CN 2011205269001 U CN2011205269001 U CN 2011205269001U CN 201120526900 U CN201120526900 U CN 201120526900U CN 202423031 U CN202423031 U CN 202423031U
- Authority
- CN
- China
- Prior art keywords
- travel switch
- cam
- switch
- machine
- draining valve
- 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
Images
Landscapes
- Detail Structures Of Washing Machines And Dryers (AREA)
- Mechanisms For Operating Contacts (AREA)
- Electrically Driven Valve-Operating Means (AREA)
Abstract
The utility model relates to a travel switch of a drain valve micromotor, which is of a compression-type contact bridging structure. The travel switch comprises a micromotor, an output shaft, a cam for starting and stopping the operation of the travel switch and an eccentric wheel for starting and stopping the drain valve; and the cam and the eccentric wheel are arranged coaxially on the output shaft; a travel switch contact bridging component arranged on a switch bottom plate is connected with a wiring harness for controlling the drain valve motor. The travel switch is characterized in that the switch bottom plate is provided with a slide rail and a slide frame sliding on the slide rail; the slide frame is internally provided with bumps at the upper and lower parts respectively and the bumps are adapted to the cam; a switch slider extending out of the shell and controlling the activity of the contact bridging component is tightly connected with the slide frame; and when the travel switch contact bridging component is started or stopped, the cam is contacted with the bumps on the upper and lower parts of the slide frame. The travel switch provided by the utility model solves the problems that the conventional travel switch of the drain valve micromotor is low in the reliability and has high requirement on the steering of the motor.
Description
Technical field
The utility model relates to a kind of switching device, relates in particular to a kind of travel switch that is used for the draining valve Electric Machine Control of washing machine.
Background technology
The draining valve control of single container washing and extracting machine needs to coordinate each other, could guarantee the operate as normal of washing machine.Usually, adopt the travel switch of draining valve electrical micro-machine to realize.At present, the travel switch of draining valve electrical micro-machine commonly used comprises the cam of electrical micro-machine, output shaft, keying travel switch and the eccentric wheel of keying draining valve.Cam and eccentric wheel coaxial setting on output shaft, travel switch connect control draining valve motor.Described travel switch is the spring strip contact structure, is arranged on the switch baseplate, and reed (contact chip) is near cam.Described cam is lenticular cam.Its weak point is: 1. rigging error is big to the influence of electrical micro-machine output torque.2. contact chip is the phosphor-copper material, and fatigue resistance is poor, and fracture is influential to contact force after the life test easily.3. the contact is difficult for making, and for sliding contact, easy to wear.
Applicant's Chinese patent 200920132882.1 discloses a kind of stroke switchgear of draining valve electrical micro-machine, comprises the cam of electrical micro-machine and power transmission shaft, keying travel switch and the eccentric wheel of keying draining valve; Cam and eccentric wheel coaxial setting on power transmission shaft, the travel switch that is arranged on the support connects the wire harness of controlling the laundry motor; Described travel switch is that press type touches bridge construction, and travel switch is included in the lug plate and the fixed contact that touch axle assemble and moving contact, one group of rat tail in the housing, stretches out housing and controls the movable slider that touches axle assemble; Described slide block is near cam.The housing of described travel switch also comprises movable buckle-type cover plate.Part has solved the not high problem of stroke switchgear complex structure, reliability of present draining valve electrical micro-machine.But still exist because cam is the setting of monolateral unsettled, direct roof pressure movable slider on motor shaft, time spent electrical axis skew long afterwards, influence is to touching the accurate control of axle assemble; And the rotation direction of motor had requirement, motor blocks commentaries on classics easily.
Therefore, be necessary the travel switch of draining valve electrical micro-machine is further improved.
The utility model content
The purpose of the utility model provides a kind of travel switch of draining valve electrical micro-machine, and the travel switch reliability that solves present draining valve electrical micro-machine is not high, and to the selective problem of motor.
The utility model solves the technical scheme that its technical problem adopted:
A kind of travel switch of draining valve electrical micro-machine is that press type touches bridge construction; Comprise the cam of electrical micro-machine and output shaft, the action of keying travel switch and the eccentric wheel of keying draining valve; Described cam and eccentric wheel coaxial setting on output shaft; The travel switch that is arranged on the switch baseplate touches the wire harness that axle assemble connects control draining valve motor; It is characterized in that: upper-lower position is provided with the boss of adaptive cam respectively in the sliding sash that slideway is set on switch baseplate and slides above that, described sliding sash; Stretching out the switch slide block of activity that housing and control touches axle assemble links closely with sliding sash and is connected; When the keying travel switch touched axle assemble, cam contacted with the upper-lower position boss of sliding sash.
Described cam is single cam.The housing of described travel switch comprises switch cover plate and cam cover.
The course of work of the stroke switchgear control draining valve of draining valve electrical micro-machine is that when electrical micro-machine was switched on, electrical micro-machine rotated and utilizes eccentric wheel and pull bar to open draining valve; While micro motor for driving cam and travel switch; Cut off the electricity supply, electrical micro-machine stops operating, washing machine drainage.When electrical micro-machine was switched on again, electrical micro-machine rotated once more, utilized eccentric wheel and pull bar to close water valve, while micro motor for driving cam and travel switch, and again dump, electrical micro-machine stops operating, and washing machine recovers former operating state.
The stroke switchgear operation principle of draining valve electrical micro-machine is, utilizes cam rotation, and the sliding sash that promotes to link together with the switch slide block moves up and down, thereby two groups of springs upsets that promote to touch axle assemble cause the switching of sound contact up and down.
The good effect of the utility model: owing to adopt the technical scheme of above-mentioned principle, the sliding sash that restricted by slideway moves up and down and does not receive the electrical axis skew and turn to influence.
1. travel switch assembling and wear error are little to the influence of motor output torque.
2. the technology assembling is simple to operation, and the housing of travel switch adopts the fastening cover plate of screw, is beneficial to maintenance.
3. cam, switch baseplate and cover plate etc. are simple in structure, are prone to processing and fabricating.
4. the manufacturing technology of travel switch is ripe, so the utility model reliability is high.
5. travel switch sealing is difficult for into dust.
Below will combine accompanying drawing and embodiment, the utility model will be carried out comparatively detailed explanation.
Description of drawings
Fig. 1 is the travel switch running part organigram of draining valve electrical micro-machine.
Fig. 2,3 is the travel switch electrical interconnection figure of draining valve electrical micro-machine.
Fig. 4 is the travel switch organigram of draining valve electrical micro-machine, and the signal draining valve is at closure state.
Fig. 5 is the travel switch organigram of draining valve electrical micro-machine, and the signal draining valve is in opening.
Among the figure: 1. wire harness, 2. the electrical micro-machine lead-out wire, 3. the shorting stub sheet, 4. long lug plate, 5. switch baseplate, 6. travel switch touches axle assemble, 7. turnover spring, 8. switch slide block, 9. cam, 10. slideway, 11. cam covers, 12. sliding sashes, 13. boss, 14. fixed contacts, 15. moving contacts, 16. switch cover plates, 17. eccentric wheels, 18. output shafts, 19. electrical micro-machines.
Embodiment
Embodiment, like Fig. 1,2,3,4, shown in 5, a kind of travel switch of draining valve electrical micro-machine is that press type touches bridge construction; Comprise electrical micro-machine 10 and output shaft 18, at output shaft 18 coaxial cam 9 that opens and closes the travel switch action and the eccentric wheels that open and close draining valve of being provided with; The travel switch that is arranged on the switch baseplate 5 touches the wire harness 1 that axle assemble 6 connects control draining valve motor; The sliding sash 12 that slideway 10 is set on switch baseplate 5 and slides above that, upper-lower position is provided with the boss 13 of adaptive cam respectively in the described sliding sash 12; Stretching out the switch slide block 8 of activity that housing and control touches axle assemble links closely with sliding sash 12 and is connected; When the keying travel switch touched axle assemble, cam 9 contacted with the upper-lower position boss 13 of sliding sash 12.
In housing, there is travel switch to touch the long lug plate 4 and shorting stub sheet 3 of axle assemble 6 and 15, one groups of rat tails 1 of moving contact, on long lug plate 4 and the shorting stub sheet 3 fixed contact 14 is arranged.The described axle assemble 6 that touches comprises turnover spring 7, stretches out housing and controls the movable switch slide block 8 that travel switch touches axle assemble 6.
Described switch slide block 8 links closely and connects sliding sash 12, and sliding sash 12 can be up and down in the track 10 of switch baseplate 5; Sliding sash 12 is near cam 9.Described cam 9 is single cams.
In order to seal, the housing of described travel switch comprises movable switch cover plate 16 and cam cover 11, and described movable switch slide block 8 stretches out switch cover plate 16.
Concrete, preferred electrical micro-machine is the 49TYJ type, performance parameter: AC220-240V, frequency 50/60HZ, rotating speed 4～5r/min, rated input power≤3.5w.
Electrical micro-machine starts for the first time by computer instruction (or manual operations) and is undertaken, after the motor half turn, promptly draining valve by closed condition after unlatching; Washing machine begins draining; The cam driven sliding sash slides simultaneously, and the switch slide block slip of linking closely with sliding sash causes the contact knock-on, and the draining valve motor power is cut off by travel switch; The draining valve motor stops operating, the washing machine continuous drainage.After draining was accomplished, electrical micro-machine received computer instruction again and rotates, after the half turn; Draining valve by opening to closed condition; This moment, the cam driven sliding sash slided, and the switch slide block slip of linking closely with the cam sliding sash causes the contact knock-on, and the draining valve motor power is cut off by travel switch again; The draining valve motor stops operating, and washing machine recovers original operating state.
Like Fig. 2, the electrical interconnection of stroke switchgear shown in 3 figure, the travel switch operation principle of draining valve electrical micro-machine:
1. when the keying eccentric wheel rests on minimum point (when draining valve rests on closed condition), the axle assemble that touches in the travel switch is parked in peak, and A, D communicate at this moment, and electric current gets into electrical micro-machine through A, D point, the electrical micro-machine rotation.(see Fig. 2, Fig. 4), along with the rotation of cam; Contact with the sliding sash boss, A is left in knock-on to contact chip suddenly, the D point drops to B, C point when the rotational angle of cam is 180 °, owing to A, D point break off; Electrical micro-machine stops operating, and draining valve is opened fully and begun draining.
2. finish when washing machine drainage, the computer instruction electric current is from the entering of C point, and electric current can pass through C, B, A and get into electrical micro-machine, and electrical micro-machine rotates once more.(see Fig. 3, Fig. 5), along with the rotation of cam, contact with the sliding sash boss, when cam rotates 180 ° again, touch axle assemble rebound suddenly and leave B, C point, rise to A, D point communicates, because B, the disconnection of C point, electrical micro-machine stops operating, and draining valve returns to closed condition.
3. touch axle assemble and under free state be and rest on minimum point (see Fig. 3, Fig. 5), the short springs of two upsets that are connected with slide block are from top to bottom pushed down and touched axle assemble, and B, C communicate.
4. after electric current got into from B, C, electrical micro-machine rotated, and it is up that cam and sliding sash boss contact the Drawing switch slide block; (see figure 3); Two turnover springs that cause being connected with the switch slide block change direction, touch the axle assemble knock-on, push down the contact from bottom to top; B, C break off (A, D communicate), and electrical micro-machine stops operating.
When the external command electric current when the D point gets into, D, A, C communicate, when electrical micro-machine rotated 180 °, A, D broke off (B, C communicate) electrical micro-machine and stop operating.
Claims (3)
1. the travel switch of a draining valve electrical micro-machine is that press type touches bridge construction; Comprise the cam of electrical micro-machine and output shaft, the action of keying travel switch and the eccentric wheel of keying draining valve; Described cam and eccentric wheel coaxial setting on output shaft; The travel switch that is arranged on the switch baseplate touches the wire harness that axle assemble connects control draining valve motor; It is characterized in that: upper-lower position is provided with the boss of adaptive cam respectively in the sliding sash that slideway is set on switch baseplate and slides above that, described sliding sash; Stretching out the switch slide block of activity that housing and control touches axle assemble links closely with sliding sash and is connected; When the keying travel switch touched axle assemble, cam contacted with the upper-lower position boss of sliding sash.
2. the travel switch of draining valve electrical micro-machine as claimed in claim 1 is characterized in that: described cam is single cam.
3. according to claim 1 or claim 2 the travel switch of draining valve electrical micro-machine, it is characterized in that: the housing of described travel switch comprises switch cover plate and cam cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205269001U CN202423031U (en) | 2011-12-16 | 2011-12-16 | Travel switch of drain valve micromotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205269001U CN202423031U (en) | 2011-12-16 | 2011-12-16 | Travel switch of drain valve micromotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202423031U true CN202423031U (en) | 2012-09-05 |
Family
ID=46747767
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205269001U Expired - Fee Related CN202423031U (en) | 2011-12-16 | 2011-12-16 | Travel switch of drain valve micromotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202423031U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102522230A (en) * | 2011-12-16 | 2012-06-27 | 黄山市屯溪三友热保护器厂 | Stroke switch of draining valve micro machine |
-
2011
- 2011-12-16 CN CN2011205269001U patent/CN202423031U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102522230A (en) * | 2011-12-16 | 2012-06-27 | 黄山市屯溪三友热保护器厂 | Stroke switch of draining valve micro machine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201266582Y (en) | Cam driving gear for double power supply automatic changeover switch | |
| CN205731356U (en) | A kind of copper metallurgy Copper Ores quick crashing device | |
| CN102768916B (en) | Rotary avoiding mechanical self-reset switch | |
| CN202423031U (en) | Travel switch of drain valve micromotor | |
| CN2893906Y (en) | Padlock device with electric operating mechanism | |
| CN201465842U (en) | Travel switch device of micro motor of water discharge valve | |
| CN102522230A (en) | Stroke switch of draining valve micro machine | |
| CN205723371U (en) | There is the supplementary module of conversion instruction | |
| CN205828319U (en) | There is the supplementary module of tripgear | |
| CN203617171U (en) | A double power supply change-over switch | |
| CN208767178U (en) | A kind of assembly type spring operating mechanism | |
| CN204130377U (en) | Switchgear two station operating mechanisms | |
| CN214043579U (en) | Safe manual-automatic small circuit breaker | |
| CN205314772U (en) | Switch door | |
| CN205959920U (en) | Circuit breaker is rather than auxiliary contact's link gear | |
| CN208970374U (en) | The breaker of external disconnecting switch | |
| CN202678172U (en) | Rotary avoiding mechanical type self-reset switch | |
| CN205153825U (en) | Automatic close window system | |
| CN203300497U (en) | Operating mechanism with Hall sensor | |
| CN202905549U (en) | Sliding type automobile skylight control switch | |
| CN102306566A (en) | Contact asynchronous double-speed movement actuating mechanism for generator breaker | |
| CN206421987U (en) | Breaker operator transmission mechanism | |
| CN205680571U (en) | A kind of transmission device of motor-direct-drive type operating mechanism | |
| CN201829411U (en) | Permanent-magnet vacuum circuit breaker | |
| CN203910570U (en) | Disconnecting switch with energy-storage spring operation mechanism |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20120905 Termination date: 20131216 |