CN103944457A - Single-phase motor starting and running device with pure alternating current capacitor - Google Patents
Single-phase motor starting and running device with pure alternating current capacitor Download PDFInfo
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- CN103944457A CN103944457A CN201410187866.8A CN201410187866A CN103944457A CN 103944457 A CN103944457 A CN 103944457A CN 201410187866 A CN201410187866 A CN 201410187866A CN 103944457 A CN103944457 A CN 103944457A
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Abstract
Provided is a single-phase motor starting and running device with a pure alternating current capacitor. The single-phase motor starting and running device can meet the starting and running requirements of a single-phase motor, is not subject to use limitation, has no fault and is simple in structure and small in size, and the capacitor can run stably for a long term. The single-phase motor starting and running device is formed by the pure alternating current capacitor and a double contact centrifugal switch. The pure alternating current capacitor is formed by three capacity elements which are sequentially in series connection; and through the double contact centrifugal switch, parallel connection of the three capacity elements during starting is achieved, one capacity element quits running after the starting, and other two capacity elements form a series connection circuit.
Description
Technical field
The present invention relates to it and relate to a kind of single-phase motor startup, running gear that adopts pure AC capacitor.
Background technology
Existing single-phase motor startup is all arranged on respectively the engine body exterior of motor with capacitor and operation conventionally with capacitor; Starting is plumbous electrolytic capacitor with capacitor, and operation is film capacitor with capacitor.When electric motor starting reaches after regulation revolution, utilize centrifugal switch (or other automatic control equipment, as the time relay, starting relay etc.) effect, start-up capacitance and circuit are disconnected, realize and moving.
And the start-up capacitance using is at present alminium electrolytic condenser, volume is large, it itself is DC capacitor, be not suitable for working in pure alternating current circuit, maximum startups per hour 20 times are no more than 3 seconds at every turn, otherwise there is explosion hazard, use limitedly, in actual use, this element very easily damages, and makes electrical fault frequent.
Summary of the invention
The present invention will address the above problem, provide a kind of and meet that single-phase motor starts, service requirement, uses not limitedly, capacitor itself can long-term stability move, fault-free, the single-phase motor of the pure AC capacitor of employing simple in structure, volume is little starts, running gear.
The single-phase motor of the pure AC capacitor of employing the present invention relates to starts, running gear, its special character is: pure AC capacitor and Double-contact centrifugal switch, consist of, described pure AC capacitor is to be in series successively by three capacity cells, three capacity cell parallel connections while realizing startup by Double-contact centrifugal switch, start a rear capacity cell two capacity cells out of service, another and form series circuit.
First group of contact and second group of contact of described Double-contact centrifugal switch have respectively movable contact, the first break and the second break, the end points of the series circuit that described three capacity cells form is connected with two the first breaks of Double-contact centrifugal switch respectively, the node of described connected capacity cell is between two connected with two movable contacts of Double-contact centrifugal switch respectively, two the second break short circuits.
First group of contact of described Double-contact centrifugal switch has movable contact, the first break, described second group of contact has movable contact, the first break and the second break, the end points of the series circuit that described three capacity cells form is connected with two the first breaks of Double-contact centrifugal switch respectively, the node of described connected capacity cell is between two connected with two movable contacts of Double-contact centrifugal switch respectively, the second break short circuit of the movable contact of first group of contact and second group of contact.
First group of contact of described Double-contact centrifugal switch has movable contact, the first break, described second group of contact has movable contact, the first break and the second break, the end points of the series circuit that described three capacity cells form is connected with the movable contact of second group of contact with the first break of first group of contact respectively, the node of described connected capacity cell is between two connected with the movable contact of first group of contact with the first break of second group of contact respectively, the second break short circuit of the movable contact of first group of contact and second group of contact.
The invention has the beneficial effects as follows:
1, getting for traditional start-up capacitance device is that aluminium electrolytic capacitor (direct current) adopts pure AC capacitor, uses unrestrictedly, and loss is extremely low.
2, traditional start-up capacitance device, operation are replaced by a pure AC capacitor with capacitor, volume-diminished half, utilize its internal structure change skilful second, during startup by three capacity cell parallel connections, during operation, by two capacity cells, form series circuit, bearing capacity improves greatly, can meet single-phase motor startup, service requirement, product quality improves greatly, capacitor itself can steady in a long-term move, fault-free in startup, running, in manufacturing process, three capacity cell capacity can be chosen arbitrarily, and satisfied use requires.
Accompanying drawing explanation
Fig. 1 is the circuit theory diagrams of the corresponding embodiment 1 of the present invention;
Fig. 2 is the circuit theory diagrams of the corresponding embodiment 2 of the present invention;
Fig. 3 is the circuit theory diagrams of the corresponding embodiment 3 of the present invention.
Embodiment
Embodiment 1
As shown in Figure 1, the present invention has the AC capacitor of an employing film capacitor (or polypropylene capacitor) and Double-contact centrifugal switch 5 to form, described pure AC capacitor is by three capacity cell C1, C2 and C3 are in series successively, first group of contact of described Double-contact centrifugal switch 5 has movable contact 503, the first break 501 and the second break 502, second group of contact has movable contact 503`, the first break 501` and the second break 502`, described three capacity cell C1, C2 is connected with 501` with two the first breaks 501 of Double-contact centrifugal switch respectively with 4 with the end points 1 of the series circuit that C3 forms, described connected capacity cell C2 between two and the node 3 of C3, the node 2 of capacity cell C1 and C2 is connected with 503` with two movable contacts 503 of Double-contact centrifugal switch respectively, two the second breaks 502 and 502` short circuit.By Double-contact centrifugal switch realize while starting three capacity cell C1, C2 and C3 in parallel, after starting, capacity cell C2 two capacity cell C1 out of service, another and C3 form series circuit.
During wiring, the end points 1 that the first capacity cell C1 is corresponding connects end points 4 corresponding to main winding 6, the three capacity cell C3 and connects auxiliary winding 7.During startup, the movable contact of Double-contact centrifugal switch 5 engages with corresponding the first break, makes end points 1 and node 3 short circuits, end points 4 and node 2 short circuits, and three capacity cell C1, C2 and C3 are in parallel, for meeting the requirement of start-up capacitance amount.During operation, the movable contact of Double-contact centrifugal switch 5 engages with the second corresponding break, end points 1 and node 3 are disconnected, end points 4 and node 2 disconnect, node 2 and node 3 make it out of service the second capacitor C 2 short circuits by the second break of short circuit, the first capacity cell C1 and the 3rd capacity cell C3 series connection, meet service requirement.
Embodiment 2
As shown in Figure 2, the present invention has the AC capacitor of an employing film capacitor (or polypropylene capacitor) and Double-contact centrifugal switch to form, described pure AC capacitor is by three capacity cell C1, C2 and C3 are in series successively, first group of contact of described Double-contact centrifugal switch has movable contact 503, the first break 501, second group of contact has movable contact 503`, the first break 501` and the second break 502`, described three capacity cell C1, C2 is connected with 501` with two the first breaks 501 of Double-contact centrifugal switch respectively with 4 with the end points 1 of the series circuit that C3 forms, the node 3 of connected capacity cell C2 and C3 between two, the node 2 of capacity cell C1 and C2 is connected with 503` with two movable contacts 503 of Double-contact centrifugal switch respectively, the second break 502` short circuit of the movable contact 503 of first group of contact and second group of contact.
During startup, the movable contact of Double-contact centrifugal switch engages with corresponding the first break, makes end points 1 and node 3 short circuits, end points 4 and node 2 short circuits, and three capacity cell C1, C2 and C3 are in parallel, for meeting the requirement of start-up capacitance amount.During operation, the second break 502` short circuit of the movable contact 503 of first group of contact of Double-contact centrifugal switch and second group of contact, end points 1 and node 3 are disconnected, end points 4 and node 2 disconnect, node 2 and node 3 make it out of service the second capacitor C 2 short circuits by the movable contact 503 of first group of contact of short circuit and the second break 502` of second group of contact, the first capacity cell C1 and the 3rd capacity cell C3 series connection, meet service requirement.
Embodiment 3
As shown in Figure 3, the present invention has the AC capacitor of an employing film capacitor (or polypropylene capacitor) and Double-contact centrifugal switch to form, described pure AC capacitor is by three capacity cell C1, C2 and C3 are in series successively, first group of contact of described Double-contact centrifugal switch has movable contact 503, the first break 501, second group of contact has movable contact 503`, the first break 501` and the second break 502`, described three capacity cell C1, C2 is connected with the first break 501 of first group of contact and the movable contact 503` of second group of contact respectively with 4 with the end points 1 of the series circuit that C3 forms, the node 2 of the node 3 of connected capacity cell C2 and C3 and capacity cell C1 and C2 is connected with the movable contact 503 of first group of contact and the first break 501` of second group of contact respectively between two, the second break 502` short circuit of the movable contact 503 of first group of contact and second group of contact.
During startup, the movable contact of Double-contact centrifugal switch engages with corresponding the first break, makes end points 1 and node 3 short circuits, end points 4 and node 2 short circuits, and three capacity cell C1, C2 and C3 are in parallel, for meeting the requirement of start-up capacitance amount.During operation, the second break 502` short circuit of the movable contact 503 of first group of contact of Double-contact centrifugal switch and second group of contact, the movable contact 503` of second group of contact of Double-contact centrifugal switch engages with the second break 502`, end points 1 and node 3 are disconnected, end points 4 and node 2 disconnect, end points 4 and node 3 make the 3rd capacity cell C3 out of service by the second break 502` and movable contact 503 short circuits of short circuit, and the first capacity cell C1 and the second capacity cell C2 series connection, meet service requirement.
Claims (4)
1. adopt single-phase motor startup, the running gear of pure AC capacitor, it is characterized in that: by pure AC capacitor and Double-contact centrifugal switch, formed, described pure AC capacitor is to be in series successively by three capacity cells, three capacity cell parallel connections while realizing startup by Double-contact centrifugal switch, start a rear capacity cell two capacity cells out of service, another and form series circuit.
2. the single-phase motor of the pure AC capacitor of employing according to claim 1 startup, running gear, it is characterized in that: first group of contact and second group of contact of described Double-contact centrifugal switch have respectively movable contact, the first break and the second break, the end points of the series circuit that described three capacity cells form is connected with two the first breaks of Double-contact centrifugal switch respectively, the node of described connected capacity cell is between two connected with two movable contacts of Double-contact centrifugal switch respectively, two the second break short circuits.
3. the single-phase motor of the pure AC capacitor of employing according to claim 1 starts, running gear, it is characterized in that: first group of contact of described Double-contact centrifugal switch has movable contact, the first break, described second group of contact has movable contact, the first break and the second break, the end points of the series circuit that described three capacity cells form is connected with two the first breaks of Double-contact centrifugal switch respectively, the node of described connected capacity cell is between two connected with two movable contacts of Double-contact centrifugal switch respectively, the second break short circuit of the movable contact of first group of contact and second group of contact.
4. the single-phase motor of the pure AC capacitor of employing according to claim 1 starts, running gear, it is characterized in that: first group of contact of described Double-contact centrifugal switch has movable contact, the first break, described second group of contact has movable contact, the first break and the second break, the end points of the series circuit that described three capacity cells form is connected with the movable contact of second group of contact with the first break of first group of contact respectively, the node of described connected capacity cell is between two connected with the movable contact of first group of contact with the first break of second group of contact respectively, the second break short circuit of the movable contact of first group of contact and second group of contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410187866.8A CN103944457A (en) | 2014-05-06 | 2014-05-06 | Single-phase motor starting and running device with pure alternating current capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410187866.8A CN103944457A (en) | 2014-05-06 | 2014-05-06 | Single-phase motor starting and running device with pure alternating current capacitor |
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| Publication Number | Publication Date |
|---|---|
| CN103944457A true CN103944457A (en) | 2014-07-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410187866.8A Pending CN103944457A (en) | 2014-05-06 | 2014-05-06 | Single-phase motor starting and running device with pure alternating current capacitor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110491612A (en) * | 2019-08-20 | 2019-11-22 | 赵小勇 | A kind of motor capacitor and single-phase motor |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB411027A (en) * | 1932-11-04 | 1934-05-31 | British Thomson Houston Co Ltd | Improvements in and relating to electric motors |
| CN2033169U (en) * | 1987-09-02 | 1989-02-22 | 王晓云 | Singal phase long life electricity-saving motor |
| CN201374625Y (en) * | 2009-03-10 | 2009-12-30 | 赵华勇 | Motor with stable operation |
| CN203827226U (en) * | 2014-05-06 | 2014-09-10 | 赵小勇 | Single-phase motor starting and operating device adopting pure AC capacitor |
-
2014
- 2014-05-06 CN CN201410187866.8A patent/CN103944457A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB411027A (en) * | 1932-11-04 | 1934-05-31 | British Thomson Houston Co Ltd | Improvements in and relating to electric motors |
| CN2033169U (en) * | 1987-09-02 | 1989-02-22 | 王晓云 | Singal phase long life electricity-saving motor |
| CN201374625Y (en) * | 2009-03-10 | 2009-12-30 | 赵华勇 | Motor with stable operation |
| CN203827226U (en) * | 2014-05-06 | 2014-09-10 | 赵小勇 | Single-phase motor starting and operating device adopting pure AC capacitor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110491612A (en) * | 2019-08-20 | 2019-11-22 | 赵小勇 | A kind of motor capacitor and single-phase motor |
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Application publication date: 20140723 |
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