CN104300499B - Single-phase speed regulating motor protects circuit, single-phase speed regulating motor and fan coil - Google Patents
Single-phase speed regulating motor protects circuit, single-phase speed regulating motor and fan coil Download PDFInfo
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- CN104300499B CN104300499B CN201310301714.1A CN201310301714A CN104300499B CN 104300499 B CN104300499 B CN 104300499B CN 201310301714 A CN201310301714 A CN 201310301714A CN 104300499 B CN104300499 B CN 104300499B
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- motor
- speed regulating
- phase speed
- regulating motor
- bidirectional thyristor
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Abstract
The invention discloses a kind of single-phase speed regulating motors to protect circuit; the motor protective circuit is electrically connected with the gear line of motor and motor zero curve; including the bidirectional thyristor being serially connected on motor gear line; the bidirectional thyristor is arranged in a one-to-one correspondence with gear line, and the control electrode of the bidirectional thyristor is electrically connected with motor zero curve by resistance.The configuration of the present invention is simple, it is easy to accomplish, it can solve the damage of the motor as caused by wiring error problem in the prior art.The present invention also provides the single-phase speed regulating motors and fan coil that have the motor protective circuit.
Description
Technical field
The present invention relates to motor control technology field, in particular to a kind of motor protective circuit, motor and fan coil.
Background technique
Single-phase speed regulating motor is widely used in the household electrical appliances such as air-conditioning, washing machine, fan and other electrical equipments.Single-phase speed regulation
Motor includes the terminals such as more gear lines and capacitor line, motor zero curve, user using when need gear line and motor zero
Line accesses power supply and inevitably has wiring error since number of conductors is more, and the most common problem accesses zero firewire of power supply
Gear line, and motor is caused to damage.
Summary of the invention
For overcome the deficiencies in the prior art, the present invention provides a kind of simple single-phase speed regulating motor protection circuit of structure,
To solve the problems, such as that single-phase speed regulating motor wiring error is easily damaged in the prior art.The present invention also provides one kind to have the protection
The single-phase speed regulating motor control system and fan coil of circuit.
In order to achieve the above object, the invention provides the following technical scheme:
A kind of single-phase speed regulating motor protection circuit, which includes gear line and motor zero curve, the motor protective circuit packet
The bidirectional thyristor being serially connected on gear line is included, bidirectional thyristor is arranged in a one-to-one correspondence with gear line, and bidirectional thyristor includes control
Pole processed, control electrode are electrically connected with motor zero curve by resistance.
Further, the value range of the resistance value R of resistance are as follows:
U/I >=R > U/2I,
Wherein U is the supply voltage of motor, and I is the conducting electric current of bidirectional thyristor.
The present invention also provides a kind of single-phase speed regulating motors comprising above-mentioned motor protective circuit.
The present invention also provides a kind of fan coils comprising above-mentioned single-phase speed regulating motor.
The beneficial effects of the present invention are: motor can be prevented because of wiring error by the simple motor protective circuit of structure
It is destroyed, evade equipment fault caused by human operational error, improves the reliability of equipment.
Detailed description of the invention
Fig. 1 is single-phase speed regulating motor protection circuit schematic diagram of the invention.
Specific embodiment
The purpose of the present invention is to provide a kind of simple single-phase speed regulating motors of structure to protect circuit, with the wiring prior art
The easily damaged problem of middle single-phase speed regulating motor wiring error.The present invention also provides a kind of single-phase speed regulation with the protection circuit
Electric machine control system and fan coil.
In order to make the objectives, technical solutions, and advantages of the present invention clearer, right with reference to the accompanying drawings and embodiments
The present invention is further elaborated.It should be appreciated that described herein, specific examples are only used to explain the present invention, not
For limiting the present invention.
Referring to Fig.1, single-phase speed regulating motor 5 includes four gear lines 1 and a motor zero curve 2, on every gear line 1
It is serially connected with bidirectional thyristor 3, the control electrode (also becoming the pole G or gate pole) of the bidirectional thyristor 3 on every gear line 1 passes through electricity
Resistance 3 is electrically connected with motor zero curve 2.When the control electrode of bidirectional thyristor 3 reaches its conducting electric current by electric current, bidirectional thyristor
3 will be connected, as long as and electric current be maintained at maintain electric current more than, bidirectional thyristor 3 will maintain always on state simultaneously
And the influence of electrode current will not be controlled.
When wiring error, zero firewire of motor power has accessed gear line 1, just has in the current loop at this moment formed
Two resistance 3, the electric current of control electrode will halve at this time, and the conducting electric current of bidirectional thyristor 3 is not achieved, and motor must not be electric, reach
The purpose of protection motor is arrived.
The selection of the resistance value R of resistance 3 should be met, the following conditions:
U/I >=R > U/2I
Wherein U is the supply voltage of the motor, and I is the conducting electric current of the bidirectional thyristor.This guarantees correctly connecing
Bidirectional thyristor 3 can be connected when line, and making motor, normally upper electric operation guarantees the electric current in circuit in wiring error
Value is less than the conducting electric current of bidirectional thyristor 3, obtain motor can not electric.
Single-phase speed regulating motor protection circuit structure in above embodiments is simple, is easy to match with existing motor, having should
The single-phase speed regulating motor of protection circuit is also easy to the batch production of motor producer, can be very good to solve single-phase tune in the prior art
The problem of easily motor being caused to burn when speed motor wiring error.
Based on above embodiments, the present invention also provides a kind of fan coils, the single-phase speed regulation electricity including above embodiments
Machine.The reliability of fan coil can be improved in fan coil with above-mentioned single-phase speed regulating motor, reduces failure rate, reduces maintenance
Cost.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
Limitations on the scope of the patent of the present invention therefore cannot be interpreted as.It should be pointed out that for those of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to guarantor of the invention
Protect range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (3)
1. a kind of single-phase speed regulating motor protects circuit, the motor includes gear line and motor zero curve, which is characterized in that the electricity
Machine protection circuit includes the bidirectional thyristor being serially connected on the gear line, and the bidirectional thyristor and the gear line one are a pair of
It should be arranged, the bidirectional thyristor includes control electrode, and the control electrode is electrically connected with the motor zero curve by resistance；
The value range of the resistance value R of the resistance are as follows:
U/I >=R > U/2I,
Wherein U is the supply voltage of the motor, and I is the conducting electric current of the bidirectional thyristor.
2. a kind of single-phase speed regulating motor, which is characterized in that including motor protective circuit as described in claim 1.
3. a kind of fan coil, which is characterized in that including single-phase speed regulating motor as claimed in claim 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310301714.1A CN104300499B (en) | 2013-07-15 | 2013-07-15 | Single-phase speed regulating motor protects circuit, single-phase speed regulating motor and fan coil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310301714.1A CN104300499B (en) | 2013-07-15 | 2013-07-15 | Single-phase speed regulating motor protects circuit, single-phase speed regulating motor and fan coil |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104300499A CN104300499A (en) | 2015-01-21 |
| CN104300499B true CN104300499B (en) | 2019-02-05 |
Family
ID=52320131
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310301714.1A Active CN104300499B (en) | 2013-07-15 | 2013-07-15 | Single-phase speed regulating motor protects circuit, single-phase speed regulating motor and fan coil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104300499B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105356418B (en) * | 2015-10-21 | 2017-11-14 | 上海新晃空调设备股份有限公司 | Wiring error protector and method for single phase ac three-speed motor |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2089542U (en) * | 1991-06-01 | 1991-11-27 | 凌云 | Temp. controlled speed adjusting device of electric fan |
| CN102013720A (en) * | 2010-11-10 | 2011-04-13 | 李秉哲 | Charger capable of automatically identifying polarity of storage battery |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09149687A (en) * | 1995-11-20 | 1997-06-06 | Fujitsu General Ltd | Speed controller for motor |
| CN2274697Y (en) * | 1996-01-02 | 1998-02-18 | 孙敬华 | Series connecting remote controller for hanging fan |
| CN201374664Y (en) * | 2008-12-30 | 2009-12-30 | 新疆众和股份有限公司 | Thyristor-type cam controller and reversing device and speed adjusting device thereof |
| CN201568351U (en) * | 2009-11-16 | 2010-09-01 | 陈达铨 | Electronic gear-position speed regulator |
| CN203367994U (en) * | 2013-07-15 | 2013-12-25 | 珠海格力电器股份有限公司 | Single-phase speed-regulation motor protection circuit, single-phase speed-regulation motor and blower fan coil pipe |
-
2013
- 2013-07-15 CN CN201310301714.1A patent/CN104300499B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2089542U (en) * | 1991-06-01 | 1991-11-27 | 凌云 | Temp. controlled speed adjusting device of electric fan |
| CN102013720A (en) * | 2010-11-10 | 2011-04-13 | 李秉哲 | Charger capable of automatically identifying polarity of storage battery |
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| Publication number | Publication date |
|---|---|
| CN104300499A (en) | 2015-01-21 |
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