CN215580971U - Motor speed regulation circuit and motor - Google Patents
Motor speed regulation circuit and motor Download PDFInfo
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- CN215580971U CN215580971U CN202121084155.XU CN202121084155U CN215580971U CN 215580971 U CN215580971 U CN 215580971U CN 202121084155 U CN202121084155 U CN 202121084155U CN 215580971 U CN215580971 U CN 215580971U
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Abstract
The utility model discloses a motor speed regulation circuit and a motor, which comprise a starting capacitor and a multi-way switch element, wherein the multi-way switch element is utilized to change the connection mode of a main winding and an auxiliary winding of a motor and a power supply, the multi-way switch element and a starting circuit of an original motor are utilized to realize the regulation of the high and low gear of the rotating speed of the motor, a power supply circuit of the motor is not required to be adjusted greatly, the related electronic elements are few, the circuit structure of the motor speed regulation circuit can be effectively simplified, and the cost is saved.
Description
Technical Field
The utility model relates to the field of motors, in particular to a motor speed regulation circuit and a motor.
Background
As shown in fig. 1, the conventional motor starting circuit includes a main winding L1, an auxiliary winding L2, and a starting capacitor C1, the main winding has two leading-out terminals A, B for connecting with a 220V power supply, and the auxiliary winding L2 is connected in series with the starting capacitor C1 and then connected in parallel with two ends of the main winding L1. After the motor starting circuit is electrified, the motor runs at a fixed rotating speed.
When the motor speed regulating circuit in the prior art is used, a plurality of elements are often additionally arranged on the circuit to realize the speed regulation control of the motor, the structure is complex, and the cost is high.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects in the prior art and provide a motor speed regulating circuit with a simple structure and a motor.
The utility model is realized by the following technical scheme: a motor speed regulation circuit comprises a starting capacitor and a multi-way switch element; the multi-way switch element comprises a first common end, a first normally closed end, a first normally open end, a second common end, a second normally closed end and a second normally open end;
the first end of the starting capacitor is connected with the first common end of the multi-way switch element, and the second end of the starting capacitor is connected with the second end of the motor secondary winding; the first normally closed end is connected with a first end of a main winding of the motor, the first normally open end is connected with a second normally closed end, the second common end is connected with a zero line, the second normally closed end is connected with a second end of the main winding of the motor, and the second normally open end is connected with a second end of a secondary winding of the motor respectively.
In one embodiment, the alarm device further comprises a first alarm circuit and a second alarm circuit, wherein the first alarm circuit is connected in parallel with the first normally-closed end and the second normally-closed end, and the second alarm circuit is connected in parallel with the first normally-closed end and the second normally-closed end;
and the first reminding circuit and the second reminding circuit are provided with signal elements for converting electric signals into sound signals or light signals.
In one embodiment, the first alert circuit includes a first indicator light and a first resistor;
the negative pole of the first indicator light is connected with the first normally-closed end, the positive pole of the first indicator light is connected with the first end of the first resistor, and the second end of the first resistor is connected with the second normally-closed end.
In one embodiment, the second reminder circuit includes a second indicator light and a second resistor;
the negative pole of the second indicator light is connected with the first normally closed end, the positive pole of the second indicator light is connected with the first end of the second resistor, and the second end of the second resistor is connected with the second normally open end.
In one embodiment, a power switch is also included; the power switch is arranged between the live wire and the multi-way switch element, the first end of the power switch is connected with the live wire, and the second end of the power switch is connected with the first normally-closed end respectively.
In one embodiment, the multiway switching element is a double pole double throw boat type switch.
In one embodiment, the multi-way switching element is a relay; the motor speed regulating circuit further comprises a change-over switch, the first end of the change-over switch is connected with one end of the relay coil, and the other end of the relay coil is connected with the live wire.
The utility model also provides a motor, which comprises a main winding, an auxiliary winding and the motor speed regulating circuit; the second end of the main winding is connected with the first end of the secondary winding.
The utility model changes the connection mode of the main winding and the secondary winding of the transformer and the power supply by using the multi-way switch element, can realize the adjustment of the high and low gear of the rotating speed of the motor by using the multi-way switch element and the starting circuit of the original motor, does not need to greatly adjust the power supply circuit of the motor, has few electronic elements, can effectively simplify the circuit structure of the speed adjusting circuit of the motor and save the cost.
For a better understanding and practice, the utility model is described in detail below with reference to the accompanying drawings.
Drawings
FIG. 1 is a circuit diagram of a prior art motor starting circuit;
fig. 2 is a circuit diagram of a motor speed regulating circuit in embodiment 1 of the present invention;
fig. 3 is a circuit diagram of a motor speed regulating circuit in embodiment 2 of the present invention;
fig. 4 is a circuit diagram of a motor speed regulating circuit in embodiment 3 of the present invention;
fig. 5 is a schematic structural view of a motor in embodiment 4 of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more clear, embodiments of the present application will be described in further detail below with reference to the accompanying drawings.
It should be understood that the embodiments described are only some embodiments of the present application, and not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without any creative effort belong to the protection scope of the embodiments in the present application.
The terminology used in the embodiments of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the embodiments of the present application. As used in the examples of this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.
When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the application, as detailed in the appended claims. In the description of the present application, it is to be understood that the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not necessarily used to describe a particular order or sequence, nor are they to be construed as indicating or implying relative importance. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
Example 1
Referring to fig. 2, the present invention provides a motor speed-adjusting circuit, which includes a starting capacitor C and a multi-way switch element SW 2; the multiple switching element SW2 includes a first common terminal 2, a first normally closed terminal 2A, a first normally open terminal 2B, a second common terminal 1, a second normally closed terminal 1A and a second normally open terminal 1B;
a first end of the starting capacitor C is connected with the first common end 2 of the multi-way switching element, and a second end of the starting capacitor C is connected with a second end of the motor secondary winding L2; the first normally closed end 2A is connected with a first end of a main winding L1 of the motor, the first normally open end 2B is connected with a second normally closed end, the second common end 1 is connected with a zero line, the second normally closed end is connected with a second end of a main winding L1 of the motor, and the second normally open ends are respectively connected with a second end of a secondary winding L2 of the motor.
The first common terminal 2 and the first normally closed terminal 2A are normally in an on state, the first common terminal 2 and the first normally open terminal 2B are normally in an off state, and when an external switching signal (for example, a manual switching signal of a user or a control signal of a controller) is received, the first common terminal 2 and the first normally closed terminal 2A are off, and the first common terminal 2 and the first normally open terminal 2B are on, so that the circuit state is switched. Similarly, the second common terminal 1 and the second normally-closed terminal 1A are normally in an on state, the second common terminal 1 and the second normally-open terminal 1B are normally in an off state, when receiving an external switching signal, the second common terminal 1 and the second normally-closed terminal 1A are off, and the second common terminal 1 and the second normally-open terminal 1B are on.
The multi-way switch element can be a relay, a double-pole double-throw switch, a multi-channel selection element consisting of a plurality of single-pole double-throw switches or other multi-channel selection elements meeting the functions required by the embodiment of the application. The multi-way switching element is used for realizing the switching of high-speed operation or low-speed operation of the motor. Specifically, in the present embodiment, the multiway switch element is a double pole double throw boat type switch.
The working principle of the utility model is as follows:
when the two normally closed contacts 2A and 1A of the multi-way switch element SW2 are disconnected and the normally open contacts 2B and 1B are closed, the main winding and the auxiliary winding of the motor are connected in series to work, the internal resistance of the motor is increased, the working current of the motor is reduced, so that the rotating speed of the motor is reduced, and the motor runs at a low speed; when the two normally closed contacts 2A and 1A of the multi-way switch element SW2 are closed and the normally open contacts 2B and 1B are opened, the main winding and the auxiliary winding of the motor work in parallel, and the motor runs at a high speed.
The utility model changes the connection mode of the main winding and the secondary winding of the transformer and the power supply by using the multi-way switch element, can realize the adjustment of the high and low gear of the rotating speed of the motor by using the multi-way switch element and the starting circuit of the original motor, does not need to greatly adjust the power supply circuit of the motor, has few electronic elements, can effectively simplify the circuit structure of the speed adjusting circuit of the motor and save the cost.
In one embodiment, the motor speed regulation circuit further comprises a power switch SW 1; the power switch SW1 is arranged between the live wire and the multi-way switch element, a first end of the power switch is connected with the live wire, and a second end of the power switch is respectively connected with the first normally-closed end.
The power switch is used for controlling the starting and stopping of the motor, and the power supply circuit of the motor is disconnected by controlling the connection and disconnection of the power switch, so that the starting and stopping of the motor are controlled, and when the motor does not need to work, the motor stops working by disconnecting the power switch, and the power is saved.
Example 2
As shown in fig. 3, the motor speed regulation circuit further includes a first warning circuit and a second warning circuit, the first warning circuit is connected in parallel to the first normally closed end 2A and the second normally closed end, and the second warning circuit is connected in parallel to the first normally closed end 2A and the second normally closed end.
The first reminding circuit and the second reminding circuit are provided with signal elements for converting electric signals into sound signals or light signals, and the signal elements can be signal elements such as indicator lamps, buzzers and loudspeakers.
The first reminding circuit and the second reminding circuit respectively correspond to high-speed operation and low-speed operation of the motor, and when the motor is in a high-speed operation state, the first reminding circuit is switched on to send out a signal for reminding a user that the motor is in the high-speed operation state; when the motor is in a low-speed running state, the second reminding circuit is switched on and sends a signal for reminding a user that the motor is in the low-speed running state currently.
Specifically, the first reminding circuit comprises a first indicator light D1 and a first resistor RR;
the negative electrode of the first indicator light D1 is connected to the first normally-closed terminal 2A, the positive electrode of the first indicator light D1 is connected to the first terminal of the first resistor RR, and the second terminal of the first resistor RR is connected to the second normally-closed terminal 1A.
The second reminding circuit comprises a second indicator light D2 and a second resistor RG;
the cathode of the second indicator light D2 is connected to the first normally closed terminal 2A, the anode of the second indicator light D2 is connected to the first terminal of the second resistor RG, and the second terminal of the second resistor RG is connected to the second normally open terminal 1B.
When two normally closed contacts 2A, 1A of multiple switch component SW2 are closed, normally open contact 2B, during 1B disconnection, pilot lamp D1 switches on and shines, when two normally closed contacts 2A of multiple switch component SW2, 1A disconnection, normally open contact 2B, when 1B is closed, pilot lamp D2 switches on and shines, through utilizing first warning circuit and second warning circuit to show the running state of motor in real time, be convenient for the user in time to adjust the operation of motor, and the production efficiency is improved.
Example 3
The motor speed regulating circuit of the embodiment 3 is basically the same as the motor speed regulating circuit of the above embodiment in circuit structure, and the difference is only that: the multi-way switch element is a relay K1; the motor speed regulation circuit further comprises a change-over switch SW4, the first end of the change-over switch SW4 is connected with one end of the coil of the relay K1, and the other end of the coil of the relay K1 is connected with a live wire.
Wherein, relay K1 is a 220V AC relay.
As shown in fig. 4, the terminals 3 and 6 of the relay K1 are common terminals, the terminals 2 and 7 are normally closed terminals, and the terminals 4 and 5 are normally open terminals, and normally, the switch SW4 is in an off state, at this time, the terminals 2, 3, 6 and 7 are turned on, the main winding and the auxiliary winding of the motor operate in parallel, and the motor operates at high speed. When the switch SW4 is switched on, the ends 2, 3, 6 and 7 are switched off, the ends 3, 4, 5 and 6 are switched on, the main winding and the auxiliary winding of the motor are connected in series to work, the internal resistance of the motor is increased, the working current of the motor is reduced, the rotating speed of the motor is reduced, and the motor runs at a low speed.
In the embodiment, the connection mode of the main winding and the auxiliary winding of the motor and the power supply is changed by using the relay and the change-over switch, the adjustment of the high and low levels of the rotating speed of the motor can be realized by using the relay, the change-over switch and the starting circuit of the original motor, the power supply circuit of the motor is not required to be adjusted greatly, the circuit structure of the motor speed adjusting circuit can be effectively simplified, and the cost is saved.
Example 4
As shown in fig. 5, the present invention also provides a motor 100, comprising a main winding L1, a secondary winding L2, and a motor speed control circuit 101 as described in any one of the above; the second end of the main winding L1 is connected with the first end of the secondary winding L2.
The motor of the utility model optimizes the motor which originally has only single-speed function into the motor with two-gear speed adjusting function, and has the characteristics of simple structure and convenient production and reconstruction.
The present invention is not limited to the above-described embodiments, and various modifications and variations of the present invention are intended to be included within the scope of the claims and the equivalent technology of the present invention if they do not depart from the spirit and scope of the present invention.
Claims (8)
1. A motor speed regulation circuit is characterized by comprising a starting capacitor and a multi-way switch element; the multi-way switch element comprises a first common end, a first normally closed end, a first normally open end, a second common end, a second normally closed end and a second normally open end;
the first end of the starting capacitor is connected with the first common end of the multi-way switch element, and the second end of the starting capacitor is connected with the second end of the motor secondary winding; the first normally closed end is connected with a first end of a main winding of the motor, the first normally open end is connected with a second normally closed end, the second common end is connected with a zero line, the second normally closed end is connected with a second end of the main winding of the motor, and the second normally open end is connected with a second end of a secondary winding of the motor respectively.
2. The motor speed regulation circuit of claim 1, wherein: the first reminding circuit is connected in parallel with the first normally closed end and the second normally closed end, and the second reminding circuit is connected in parallel with the first normally closed end and the second normally closed end;
and the first reminding circuit and the second reminding circuit are provided with signal elements for converting electric signals into sound signals or light signals.
3. The motor speed regulation circuit of claim 2, wherein: the first reminding circuit comprises a first indicator light and a first resistor;
the negative pole of the first indicator light is connected with the first normally-closed end, the positive pole of the first indicator light is connected with the first end of the first resistor, and the second end of the first resistor is connected with the second normally-closed end.
4. The motor speed regulation circuit of claim 2, wherein: the second reminding circuit comprises a second indicator light and a second resistor;
the negative pole of the second indicator light is connected with the first normally closed end, the positive pole of the second indicator light is connected with the first end of the second resistor, and the second end of the second resistor is connected with the second normally open end.
5. The motor speed regulation circuit of claim 1, wherein: the power supply also comprises a power supply switch; the power switch is arranged between the live wire and the multi-way switch element, the first end of the power switch is connected with the live wire, and the second end of the power switch is connected with the first normally-closed end respectively.
6. A motor speed regulation circuit according to any one of claims 1 to 4 wherein: the multi-way switch element is a double-pole double-throw ship-shaped switch.
7. A motor speed regulation circuit according to any one of claims 1 to 4 wherein: the multi-way switch element is a relay; the motor speed regulating circuit further comprises a change-over switch, the first end of the change-over switch is connected with one end of the relay coil, and the other end of the relay coil is connected with the live wire.
8. An electric machine characterized by: comprising a primary winding, a secondary winding and a motor speed regulation circuit according to any of claims 1-7; the second end of the main winding is connected with the first end of the secondary winding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121084155.XU CN215580971U (en) | 2021-05-19 | 2021-05-19 | Motor speed regulation circuit and motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121084155.XU CN215580971U (en) | 2021-05-19 | 2021-05-19 | Motor speed regulation circuit and motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215580971U true CN215580971U (en) | 2022-01-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121084155.XU Active CN215580971U (en) | 2021-05-19 | 2021-05-19 | Motor speed regulation circuit and motor |
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|---|---|
| CN (1) | CN215580971U (en) |
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2021
- 2021-05-19 CN CN202121084155.XU patent/CN215580971U/en active Active
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