CN201518467U - Single-phase motor soft starter and air conditioner with same - Google Patents
Single-phase motor soft starter and air conditioner with same Download PDFInfo
- Publication number
- CN201518467U CN201518467U CN2009202379036U CN200920237903U CN201518467U CN 201518467 U CN201518467 U CN 201518467U CN 2009202379036 U CN2009202379036 U CN 2009202379036U CN 200920237903 U CN200920237903 U CN 200920237903U CN 201518467 U CN201518467 U CN 201518467U
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- soft initiator
- monophase machine
- soft starter
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Abstract
The utility model discloses a single-phase motor soft starter and an air conditioner with the same. A running winding (L1) of a single-phase motor (M) is serially connected with a startup winding (L2) and then parallelly connected with a running capacitor (C1), a startup capacitor (C2) of the soft starter is serially connected with a first relay (K1) and then parallelly connected with the running capacitor (C1), and a bidirectional silicon controlled rectifier (SRC) of the soft starter is parallelly connected with a second replay (K2) and then serially connected with the running winding (L1). The soft starter also comprises a third relay (K3) parallelly connected with the second replay (K2). The utility model further discloses an air conditioner. The operation of the compressor of the air conditioner is connected by the single-phase motor soft starter. The single-phase motor soft starter adopting double-relay ensured operating mode can eliminate the hidden trouble of the compressor being burnt out due to the damage of the relay, and solves the shutdown repair problem of the air conditioner due to the damage of the soft starter.
Description
Technical field
The utility model relates to Motor Control Field, particularly monophase machine soft initiator and have the air-conditioning of this soft initiator.
Background technology
For reducing impact, use soft initiator to start compressor of air conditioner usually to electrical network.Wiring such as Fig. 1 connect soft initiator chip U1 and operation capacitor C 1, start capacitor C 2 between terminals S, the R of monophase machine M, another terminals C connects power supply.Circuit theory such as Fig. 2, the operation winding L 1 of motor M is connected back in parallel with operation capacitor C 1 with startup winding L 2, in parallel with operation capacitor C 1 after the startup capacitor C 2 of soft initiator is connected with first relay K 1, the bidirectional thyristor SRC of soft initiator connects with operation winding L 1 with second relay K, 2 backs in parallel.In first relay K, 1 closure, when second relay K 2 disconnects, bidirectional thyristor SRC is in and shifts to conducting state, motor M startup; When 1 disconnection of first relay K, second relay K, 2 closures, bidirectional thyristor SRC is by bypass, and motor M runs well.
Above-mentioned soft initiator may break down, and its bidirectional thyristor SRC and second relay K 2 are fallible component.Damage as bidirectional thyristor SRC, second relay K 2 is intact, but soft initiator starter motor M still, but lose soft start function, can impact to electrical network.SRC is intact as bidirectional thyristor, and second relay K 2 is damaged, then can't starter motor M; To continue to flow startup winding L 2 and start capacitor C 2 of this moment as rapid deenergization, electric current causes motor coil to generate heat in a large number, when serious even cause burn-down of electric motor.
Especially, when soft initiator damaged, general user can't judge because of not possessing professional knowledge whether air-conditioning is normal.In addition, compressor is installed in outdoor, even the professional also can not monitor the ruuning situation of air-conditioning at any time, needs usually to find just that for a long time air-conditioning is undesired.This just requires soft initiator to have the self-protection function, can cut off the electricity supply rapidly after going wrong with the protection compressor.But this also can make air-conditioning out of service, and the maintenance personal can not keep in repair in the very first time after in most cases air-conditioning damaged; In unattended time, the user might occur and not wish situation about occurring, can cause accidental loss as the environment such as greenhouse cultivation chamber of need constant temperature or constant humidity, restaurant food city etc.; Just be domestic consumer or office user, do not wish that also air-conditioning damages when needs use.Concerning air conditioner user, wish especially can in time report to the police after soft initiator goes wrong, and can operate with failure, when the free time, keep in repair again.Like this, could guarantee user's interests, avoid air-conditioning bigger damage to occur because of on-call maintenance not.
The utility model content
At the weak point of common soft initiator, the utility model provides a kind of monophase machine soft initiator, still can normally move when its relay breaks down.On this basis, the utility model also provides a kind of air-conditioning with this soft initiator.
For solving the problems of the technologies described above, the monophase machine soft initiator that the utility model provides, the operation winding (L1) of monophase machine (M) is connected back in parallel with operation electric capacity (C1) with startup winding (L2), it is in parallel after the startup electric capacity (C2) of soft initiator is connected with first relay (K1) with operation electric capacity (C1), the bidirectional thyristor of soft initiator (SRC) is connected with operation winding (L1) with second relay (K2) back in parallel, soft initiator also comprises the 3rd relay (K3), and (K2) is in parallel with second relay.
First relay (K1), second relay (K2), the 3rd relay (K3) are normally opened relay.
Soft initiator also comprises feedback sense circuit (100), and input is in parallel with second relay (K2), and (A, B) voltage is judged its state by detecting second relay (K2) two ends.
Comprise warning circuit (105) in the feedback sense circuit (100), when second relay (K2) damages, report to the police.
Feedback sense circuit (100) comprises input circuit (101), rectification circuit (102), charging circuit (103), amplitude limiter circuit (104), warning circuit (105) and the output circuit (106) of serial connection successively, and wherein: warning circuit (105) comprises light-emitting diodes light (D3); Output circuit (106) comprises phototriode (Q1), is coupled with light-emitting diode (D3).
Input circuit (101) is the RC coupling circuit that resistance (R1) and electric capacity (C3) are formed.
Rectification circuit (102) comprises diode (D1).
Charging circuit (103) is in series by resistance (R2) and electric capacity (C4).
Amplitude limiter circuit (104) comprises voltage-stabiliser tube (D2).
On this basis, the utility model air-conditioning comprises above-mentioned monophase machine soft initiator, in order to the control compressor operating.
Compared with prior art, the utility model soft initiator adopts double relay insurance operational mode, during a relay damaged, do not influence the use of air-conditioning fully therein, this makes the air-conditioning user can wait for professional's maintenance calmly in air-conditioning operates with failure.Thus, eliminated the hidden danger that causes compressor to burn because of relay damaged, also solved air-conditioning owing to soft initiator damages the problem to be repaiied of shutting down.
Description of drawings
Fig. 1 is the winding diagram of existing monophase machine soft initiator;
Fig. 2 is the electrical schematic diagram of existing monophase machine soft initiator;
Fig. 3 is the electrical schematic diagram of the utility model monophase machine soft initiator;
Fig. 4 is the circuit diagram of feedback sense circuit in the monophase machine soft initiator shown in Figure 3.
Embodiment
Basic design of the present utility model is that key element is backed up; When main element damaged, spare part in time came into operation.
Describe below in conjunction with accompanying drawing and specific embodiment.
Referring to Fig. 3, the operation winding L 1 of monophase machine M is connected back in parallel with operation capacitor C 1 with startup winding L 2, in parallel with operation capacitor C 1 after the startup capacitor C 2 of soft initiator is connected with first relay K 1, the bidirectional thyristor SRC of soft initiator connects with operation winding L 1 with second relay K, 2 backs in parallel; In addition, soft initiator also comprises the 3rd relay K 3, and is in parallel with second relay K 2.Wherein, first relay K 1, second relay K 2, the 3rd relay K 3 are normally opened relay, all are open-circuit conditions when not having control signal or when damaging.
This soft initiator can guarantee preferably that air conditioner can operate with failure, below to its course of work brief description.
When the soft initiator chip detection when the motor M major loop is switched on, SRC sends control signal to bidirectional thyristor, it is in shifts to conducting state; Send signal to first relay K 1 again and make its closure.After first relay K, 1 closure, motor M begins to start.At this moment, because bidirectional thyristor SRC is in and shifts to conducting state, reduced the voltage of operation winding L 1, thereby reduced starting current; And,, increased starting torque because it is in parallel with operation electric capacity to start capacitor C 2.
After motor M started, starting current progressively reduced.When motor M was working properly, the soft initiator chip sent signal to second relay K 2 and makes its closure.After second relay K, 2 closures, bidirectional thyristor SRC is no longer worked by bypass.Meanwhile, the soft initiator chip sends signal to first relay K 1 and makes its disconnection, stops to start capacitor C 2 work.So far, motor M starts and finishes, and enters normal operating condition.
When second relay K 2 was damaged, the 3rd standby relay K 3 came into operation, and its effect is identical with second relay K 2, does not repeat them here.Thus, by backing up second relay K 2, it can make motor M operate with failure when damaging.
In addition, the utility model is provided with feedback sense circuit to detect second relay K, 2 faults, so that in time take measures.
Referring to Fig. 4, feedback sense circuit 100 inputs are in parallel with second relay K 2, the soft initiator chip is judged second relay K, 2 states by detected second relay K, 2 ends A, B voltage: if there is alternating current 220V voltage in A, B point, and OUT point output digital signaling zero; Otherwise, output 1.According to this output voltage, the soft initiator chip can be judged the operating state of compressor.If problem is made respective handling by it, guarantee that soft initiator still can operate with failure after going wrong; Simultaneously, send alarm signal, remind the user in time to keep in repair.
As shown in Figure 4, in the feedback sense circuit 100 warning circuit is set, when second relay K 2 is damaged, reports to the police, inform user's fault, remind it in time to take measures and keep in repair.
As shown in Figure 4, this feedback sense circuit 100 is made up of the input circuit 101, rectification circuit 102, charging circuit 103, amplitude limiter circuit 104, warning circuit 105 and the output circuit 106 that are connected in series successively, wherein:
Above-mentioned warning circuit 105, output circuit 106 can integrate, and for example light-emitting diodes light D3, phototriode Q1 just can be integrated in the same chip IC.
By feedback sense circuit 100, just can in time detect second relay and whether damage, its course of work is as follows:
When the 2 closed work of second relay K, A, B point voltage are zero, OUT point output digital signal 1; When relay K 2 was damaged, A, B point voltage were 220V, OUT point output digital signaling zero.
Corresponding therewith, when second relay K 2 should closedly be worked, the soft initiator chip detection illustrated second relay K, 2 operate as normal to OUT point output digital signal 1; Otherwise, detect 0,2 damages of second relay K are described.
When second relay K 2 was damaged, the soft initiator chip should send closed the 3rd relay K 3 of control signal, to guarantee the air conditioner operate as normal.Simultaneously, the soft initiator chip also should send alarm signal, informs that user's soft initiator breaks down; At this moment, the user should keep in repair after soft initiator breaks down as early as possible; Otherwise, also damages as relay K 3 and just the situation that compressor burns might occur, thereby influence is used.
The utility model air-conditioning is by above-mentioned soft initiator control compressor operating.Owing to adopt the double relay operational mode, can eliminate the hidden danger that causes compressor to burn because of relay damaged, solve air-conditioning owing to soft initiator damages the problem to be repaiied of shutting down.
Only be preferred implementation of the present utility model below, should be pointed out that above-mentioned preferred implementation should not be considered as restriction of the present utility model, protection range of the present utility model should be as the criterion with claim institute restricted portion.For those skilled in the art, in not breaking away from spirit and scope of the present utility model, can also make some improvements and modifications, these improvements and modifications also should be considered as protection range of the present utility model.
Claims (10)
1. monophase machine soft initiator, the operation winding (L1) of monophase machine (M) is connected back in parallel with operation electric capacity (C1) with startup winding (L2), it is in parallel after the startup electric capacity (C2) of soft initiator is connected with first relay (K1) with operation electric capacity (C1), the bidirectional thyristor of soft initiator (SRC) is connected with operation winding (L1) with second relay (K2) back in parallel, it is characterized in that, soft initiator also comprises the 3rd relay (K3), and (K2) is in parallel with second relay.
2. monophase machine soft initiator as claimed in claim 1 is characterized in that, first relay (K1), second relay (K2), the 3rd relay (K3) are normally opened relay.
3. monophase machine soft initiator as claimed in claim 1 is characterized in that, soft initiator also comprises feedback sense circuit (100), and input is in parallel with second relay (K2), and (A, B) voltage is judged its state by detecting second relay (K2) two ends.
4. monophase machine soft initiator as claimed in claim 3 is characterized in that, comprises warning circuit (105) in the feedback sense circuit (100), reports to the police when second relay (K2) damages.
5. monophase machine soft initiator as claimed in claim 4, it is characterized in that, feedback sense circuit (100) comprises input circuit (101), rectification circuit (102), charging circuit (103), amplitude limiter circuit (104), warning circuit (105) and the output circuit (106) of serial connection successively, and wherein: warning circuit (105) comprises light-emitting diodes light (D3); Output circuit (106) comprises phototriode (Q1), is coupled with light-emitting diode (D3).
6. monophase machine soft initiator as claimed in claim 5 is characterized in that, input circuit (101) is the RC coupling circuit that resistance (R1) and electric capacity (C3) are formed.
7. monophase machine soft initiator as claimed in claim 5 is characterized in that, rectification circuit (102) is diode (D1).
8. monophase machine soft initiator as claimed in claim 5 is characterized in that, charging circuit (103) is in series by resistance (R2) and electric capacity (C4).
9. monophase machine soft initiator as claimed in claim 5 is characterized in that, amplitude limiter circuit (104) is voltage-stabiliser tube (D2).
10. an air-conditioning comprises compressor, it is characterized in that, comprises each described monophase machine soft initiator as claim 1-9, in order to the control compressor operating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202379036U CN201518467U (en) | 2009-10-27 | 2009-10-27 | Single-phase motor soft starter and air conditioner with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202379036U CN201518467U (en) | 2009-10-27 | 2009-10-27 | Single-phase motor soft starter and air conditioner with same |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202671096U Division CN201528300U (en) | 2009-10-29 | 2009-10-29 | Feedback detection circuit and single-phase motor soft starter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201518467U true CN201518467U (en) | 2010-06-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202379036U Expired - Fee Related CN201518467U (en) | 2009-10-27 | 2009-10-27 | Single-phase motor soft starter and air conditioner with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201518467U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104467623A (en) * | 2014-12-12 | 2015-03-25 | 陈伟禧 | Fan motor speed adjusting device, fan with same and fan motor |
| CN105156312A (en) * | 2015-09-15 | 2015-12-16 | 珠海格力电器股份有限公司 | fixed-frequency compressor starting circuit and starting method |
| CN105371544A (en) * | 2014-08-29 | 2016-03-02 | 青岛海尔洗衣机有限公司 | Heat pump system, control method of heat pump system and clothes dryer |
-
2009
- 2009-10-27 CN CN2009202379036U patent/CN201518467U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105371544A (en) * | 2014-08-29 | 2016-03-02 | 青岛海尔洗衣机有限公司 | Heat pump system, control method of heat pump system and clothes dryer |
| WO2016029528A1 (en) * | 2014-08-29 | 2016-03-03 | 青岛海尔洗衣机有限公司 | Heat pump system, control method thereof and clothes dryer |
| CN104467623A (en) * | 2014-12-12 | 2015-03-25 | 陈伟禧 | Fan motor speed adjusting device, fan with same and fan motor |
| CN105156312A (en) * | 2015-09-15 | 2015-12-16 | 珠海格力电器股份有限公司 | fixed-frequency compressor starting circuit and starting method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100630 Termination date: 20161027 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |