CN201465842U - Travel switch device of micro motor of water discharge valve - Google Patents
Travel switch device of micro motor of water discharge valve Download PDFInfo
- Publication number
- CN201465842U CN201465842U CN2009201328821U CN200920132882U CN201465842U CN 201465842 U CN201465842 U CN 201465842U CN 2009201328821 U CN2009201328821 U CN 2009201328821U CN 200920132882 U CN200920132882 U CN 200920132882U CN 201465842 U CN201465842 U CN 201465842U
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- CN
- China
- Prior art keywords
- travel switch
- cam
- machine
- draining valve
- electrical micro
- 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
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- Detail Structures Of Washing Machines And Dryers (AREA)
- Electrically Driven Valve-Operating Means (AREA)
Abstract
The utility model relates to a travel switch device of a micro motor of a water discharge valve, which comprises the micro motor, a transmission shaft, a cam and an eccentric wheel, wherein the cam switches on and off a travel switch, the eccentric wheel opens and closes a water discharge valve, the cam and the eccentric wheel are arranged in a coaxial mode on the transmission shaft, and the travel switch arranged on a support frame is connected with a beam used for controlling the wiring harness of a cloth washing motor. The utility model is characterized in that the travel switch is in a raising and pressing type contact bridge structure, the travel switch comprises a contact bridge assembly, moving contacts, a group of terminal lugs, break back contacts and a movable slide block, wherein the contact bridge assembly is arranged in a case, the terminal lugs and the break back contact are connected with the wiring harness, the movable slide block extends out of the case and controls the contact bridge assembly, and the slide block is tightly leaned against the cam. The case of the travel switch also comprises a movable clamp buckle type cover plate. The utility model solves the problems of complicated structure, low reliability and the like of the existing travel switch device of the micro motor of the water discharge valve.
Description
Technical field
The utility model relates to a kind of stroke switchgear of draining valve electrical micro-machine, is the draining valve Electric Machine Control that is used for washing machine.
Background technology
The draining valve control of single container washing and extracting machine needs to coordinate mutually, could guarantee the operate as normal of washing machine.Usually, adopt the stroke switchgear of draining valve electrical micro-machine to realize.At present, the stroke switchgear of draining valve electrical micro-machine comprises the cam of electrical micro-machine, power transmission shaft, keying travel switch and the eccentric wheel of keying draining valve.Cam and eccentric wheel coaxial setting on power transmission shaft, travel switch connect control draining valve motor.Described travel switch is the spring strip contact structure, is arranged on the support, 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. technology matching requirements height, the installation site of reed contact chip is accurate, also needs epoxy resin to fix, the production cycle lengthening.
3. support and cam structure complexity are difficult for making.
4. contact chip is the phosphor-copper material, and fatigue resistance is poor, and is influential to contact force after the life test.
5. the contact is difficult for making, and for sliding contact, easy to wear.
Therefore, be necessary the stroke switchgear of draining valve electrical micro-machine is improved.
The utility model content
The purpose of this utility model provides a kind of stroke switchgear of draining valve electrical micro-machine, solves problems such as stroke switchgear complex structure, the reliability of present draining valve electrical micro-machine be not high.
The technical scheme that its technical problem that solves the utility model adopts is: 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 draining valve motor; It is characterized in that: 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 the movable slider that axle assemble is touched in housing and control; Described slide block is near cam.
Described cam is single cam.The housing of described travel switch comprises movable buckle-type cover plate, and described movable slider stretches out the buckle-type cover plate.
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 that draining valve is opened, 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 that water valve cuts out, 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, promotes slide block and moves up and down, and causes the sound contact to open and close up and down thereby promote to touch two groups of springs upsets of axle assemble.
Good effect of the present utility model:
1. the travel switch rigging error is little to the influence of motor output torque.
2. the technology assembling is simple to operation, and the housing of travel switch adopts the buckle-type cover plate to be beneficial to maintenance.
3. cam, support and cover plate etc. are simple in structure, easily processing and fabricating.
4. the manufacturing technology of travel switch is ripe, so the utility model reliability height.
Below with reference to drawings and Examples, the utility model is carried out comparatively detailed explanation.
Description of drawings
Fig. 1 is the stroke switchgear running part organigram of draining valve electrical micro-machine.
Fig. 2 is the stroke switchgear electrical interconnection figure of draining valve electrical micro-machine.
Fig. 3 is the stroke switchgear organigram of draining valve electrical micro-machine, and the signal draining valve is in opening.
Fig. 4 is the stroke switchgear organigram of draining valve electrical micro-machine, and the signal draining valve is at closure state.
Among the figure: 1. wire harness, 2. connecting line, 3. return spring, 4. the shorting stub sheet, 5. long lug plate, 6. support, 7. touch axle assemble, 8. turnover spring, 9. slide block, 10. cam, 11 electrical micro-machines, 12. eccentric wheels, 13. travel switches, 14. cover plates, 15. fixed contacts, 16. moving contacts.
Embodiment
Embodiment, shown in Fig. 1,2,3,4, a kind of stroke switchgear of draining valve electrical micro-machine comprises the cam 10 of electrical micro-machine 11 and power transmission shaft, keying travel switch 13 and the eccentric wheel 12 of keying draining valve; Cam 10 and eccentric wheel 12 coaxial setting on power transmission shaft, the travel switch 13 that is arranged on the support 6 connects the wire harness 1 of controlling the draining valve motor.Described travel switch 13 touches bridge construction for press type, travel switch 13 is included in the lug plate (4,5) and the fixed contact 15 that touch axle assemble 7 and moving contact 16, one group of rat tail 1 in the housing, and the described axle assemble 7 that touches comprises return spring 3 and two turnover springs 8; Stretch out the movable slider 9 that axle assemble 7 is touched in housing and control; Described slide block 9 is near cam 10.Described cam 10 is single cams.The housing of described travel switch comprises movable buckle-type cover plate 14, and described movable slider stretches out the buckle-type cover plate.
Concrete, can select electrical micro-machine for use is the 49TYJ type, performance parameter: AC220-240V, frequency 50/60HZ, rotating speed 4～5r/min, rated power≤3.5w.
Electrical micro-machine starts for the first time by computer instruction (or manual operations) and is undertaken, after motor rotates half-turn, be draining valve by closed condition after open, washing machine begins draining, cam also turns to major radius to contact with slide block by short radius simultaneously, the draining valve motor power is cut off by travel switch, and the draining valve motor stops operating, the washing machine continuous drainage.After draining is finished, electrical micro-machine is subjected to computer instruction again and rotates, after rotating half-turn, draining valve by opening to closed condition, this moment, cam also turned to short radius to contact with slide block by major radius, the draining valve motor power is cut off by travel switch again, and the draining valve motor stops operating, and washing machine recovers original operating state.
Stroke switchgear electrical interconnection figure as shown in Figure 2, 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 also is parked in minimum point, and this moment, B, C communicated, and electric current enters electrical micro-machine by B, C point, and electrical micro-machine rotates.This moment, cam contacted (see figure 3) on the short radius face with slide block, rotation along with cam, progress into the major radius face and contact, contact chip knock-on is suddenly left B, C point and is risen to A, D point when the rotational angle of cam is 180 °, because B, C point disconnects, electrical micro-machine stops operating, and draining valve is opened fully and begun draining.
2. working as washing machine drainage finishes, the computer instruction electric current enters from the D point, electric current can enter electrical micro-machine by D, A, C, and electrical micro-machine rotates once more. and this moment, cam contacted (see figure 4) on the major radius face with slide block, along with the rotation of cam, slide block progresses into the short radius face and contacts, when cam rotates 180 ° again, touch axle assemble rebound suddenly and leave A, D point, drop to B, C point and communicate, because A, D point disconnects, electrical micro-machine stops operating, and draining valve returns to closed condition.
3. touching axle assemble is to rest on the minimum point (see figure 3) under free state, and cam short radius face contacts with slide block, and the central bottom return spring is with sliding shoe jack-up, and the short spring of two upsets that is connected with slide block is from top to bottom pushed down and touched axle assemble, and B, C communicate.
4. after electric current enters from B, C, electrical micro-machine rotates, cam contacts with slide block by the short radius face and slides to major radius face (see figure 4), the central bottom return spring is compressed, two turnover springs that are connected with slide block change direction, touch the axle assemble knock-on, push down the contact from bottom to top, B, C disconnect (A, D communicate), and electrical micro-machine stops operating.
When the external command electric current when the D point enters, D, A, C communicate, when electrical micro-machine rotated 180 °, cam contacted with slide block and slides to the short radius face by the major radius face, middle lower curtate spring is again with slide block jack-up, A, D disconnection (B, C communicate) electrical micro-machine stops operating.
Claims (3)
1. the stroke switchgear of a 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; It is characterized in that: 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 the movable slider that axle assemble is touched in housing and control; Described slide block is near cam.
2. the stroke switchgear of draining valve electrical micro-machine as claimed in claim 1 is characterized in that: described cam is single cam.
3. the stroke switchgear of draining valve electrical micro-machine as claimed in claim 1 or 2 is characterized in that: the housing of described travel switch comprises movable buckle-type cover plate, and described movable slider stretches out the buckle-type cover plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201328821U CN201465842U (en) | 2009-06-18 | 2009-06-18 | Travel switch device of micro motor of water discharge valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201328821U CN201465842U (en) | 2009-06-18 | 2009-06-18 | Travel switch device of micro motor of water discharge valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201465842U true CN201465842U (en) | 2010-05-12 |
Family
ID=42393190
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201328821U Expired - Fee Related CN201465842U (en) | 2009-06-18 | 2009-06-18 | Travel switch device of micro motor of water discharge valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201465842U (en) |
Cited By (2)
| 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 |
| WO2018036383A1 (en) * | 2016-08-25 | 2018-03-01 | 青岛海尔洗衣机有限公司 | Washing machine drainage traction apparatus and washing machine |
-
2009
- 2009-06-18 CN CN2009201328821U patent/CN201465842U/en not_active Expired - Fee Related
Cited By (2)
| 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 |
| WO2018036383A1 (en) * | 2016-08-25 | 2018-03-01 | 青岛海尔洗衣机有限公司 | Washing machine drainage traction apparatus and washing machine |
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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: 20100512 Termination date: 20120618 |