Direct-current variable-frequency speed-regulation intelligent clothes airing machine circuit

Abstract

The utility model belongs to the technical field of electric clothes airing machine control, and particularly relates to a direct current frequency conversion speed regulation intelligent clothes airing machine circuit which comprises a switch control circuit and a driving motor, the input end of the switch control circuit is connected to the secondary side of a direct current transformation circuit, and the primary side of the direct current transformation circuit is connected with mains supply through a bridge rectifier circuit. The secondary side of the direct-current transformation circuit is also connected with a lighting circuit; and the primary sides of the lighting circuit, the switch control circuit and the direct-current transformation circuit are electrically connected with the control module through flat cables. According to the direct-current variable-frequency speed-regulation intelligent clothes airing machine circuit provided by the utility model, the control module of the clothes airing machine mainly utilizes the programmable advantage of a single-chip microcomputer, realizes the adjustment of the duty ratio through programming, and is matched with an MOS switch to control the driving motor of the clothes airing machine, so that the lifting speed can be adjusted in the lifting process of a clothes hanger of the clothes airing machine, and the clothes airing machine is more convenient to use. The machine noise is reduced, the impact damage rate of starting and stopping to clothes airing machine parts is reduced, the service life is prolonged, and the use is safer.

Description

Technical Field

[0001] The utility model belongs to the technical field of electric clothes drying machine control, and in particular relates to a direct current variable frequency speed regulating intelligent clothes drying machine circuit. Background Art

[0002] At present, the lifting and lowering of traditional electric clothes drying machines are mainly driven by 24V DC motors, and the conversion adopts a relay to switch the polarity of the 24V motor to achieve lifting and lowering. The lifting process has only one speed. When starting and stopping, there are disadvantages of large current, fast speed and high noise. The electromagnetic harmonics generated by large current are relatively easy to pollute the power grid and damage other household appliances. The fast speed is easy to cause damage to the parts of the clothes drying machine when starting or stopping, such as safety accidents such as the breakage of the clothes drying rod and the fall and injury of people. The noise will cause noise pollution to users. Based on the above problems, the utility model provides a DC variable frequency speed regulation intelligent clothes drying machine circuit. Through DC variable frequency speed regulation, stepless speed regulation is achieved when the clothes drying machine is started, stopped and running, so that the clothes drying machine has the advantages of low noise, long service life and greater safety. Utility Model Content

[0003] In view of this, the utility model provides a DC variable frequency speed regulation intelligent clothes drying machine circuit to solve the above problems recorded in the background technology.

[0004] In order to achieve the above object, the utility model is implemented through the following technical solutions:

[0005] The utility model provides a DC variable frequency speed regulation intelligent clothes drying machine circuit, comprising a switch control circuit and a drive motor connected to the output end of the switch control circuit, wherein the input end of the switch control circuit is connected to the secondary side of the DC transformer circuit, the primary side of the DC transformer circuit is connected to the mains via a bridge rectifier circuit, and the secondary side of the DC transformer circuit is also connected to a lighting circuit; the lighting circuit, the switch control circuit and the primary side of the DC transformer circuit are electrically connected to a control module via wiring, and the control module mainly comprises a single chip microcomputer, an antenna connected to the single chip microcomputer and a control output end.

[0006] In the above-mentioned DC variable frequency speed regulation intelligent clothes drying machine circuit, as a preferred solution, the input end of the bridge rectifier circuit is connected in parallel with a first varistor, a fourth capacitor, and a series circuit of a third resistor and a seventh resistor, and the L-end branch of the rectifier circuit is connected in series with a fuse and a second varistor; the L pin of the control module is connected to the L end of the AC power via the fourth resistor, and the N pin of the control module is connected to the N end of the AC power.

[0007] In the above-mentioned DC variable frequency speed regulation intelligent clothes drying machine circuit, as a preferred solution, the primary side of the DC transformer circuit is connected in series with a first MOS tube, in parallel with a fifth resistor and an eighth resistor series circuit, in parallel with a sixth resistor and a second capacitor connected in parallel and then in series with a fifth diode circuit; the eighth resistor is connected to the S pole of the first MOS tube, the anode of the fifth diode is connected to the D pole of the first MOS tube, and the G pole of the first MOS tube is connected to the ZQ pin of the control module.

[0008] In the above-mentioned DC variable frequency speed regulation intelligent clothes drying machine circuit, as a preferred solution, the secondary side of the DC transformer circuit is connected to a switch control circuit, and the switch control circuit includes a second MOS tube and a third MOS tube; the second MOS tube and the second diode or the third MOS tube and the sixth diode are connected to the positive pole of the drive motor; the negative pole of the drive motor is connected to the middle end of the DC transformer circuit, and the negative pole of the drive motor is connected to the negative pole of the second diode through the third diode and the third capacitor connected in parallel, and the negative pole of the drive motor is connected to the positive pole of the sixth diode through the fifth capacitor and the seventh diode connected in parallel; the G pole of the second MOS tube and the G pole of the third MOS tube are respectively connected to the SQ pin and the XQ pin of the control module.

[0009] In the above-mentioned DC variable frequency speed regulation intelligent clothes drying machine circuit, as a preferred solution, the lighting circuit includes a lighting lamp and a fourth MOS tube connected in series to the DC transformer circuit, and the G pole of the fourth MOS tube is connected to the MQ terminal of the control module.

[0010] The utility model provides a DC variable frequency speed regulation intelligent clothes drying machine circuit, which has the following beneficial effects: the DC variable frequency speed regulation intelligent clothes drying machine circuit provided by the utility model, the control module of the clothes drying machine mainly includes utilizing the programmable advantages of the single-chip microcomputer, realizing the adjustment of the duty cycle through programming, and cooperating with the MOS switch to control the driving motor of the clothes drying machine, realizing the speed control of the lifting and lowering of the clothes drying rack of the clothes drying machine, so that the lifting speed can be adjusted during the lifting and lowering process of the clothes drying rack of the clothes drying machine, reducing the machine noise, reducing the impact damage rate of the start and stop on the components of the clothes drying machine, improving the service life, and making it safer to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a circuit diagram of a clothes drying machine provided by the utility model. DETAILED DESCRIPTION

[0012] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0013] Exemplary embodiments of the present invention are described in detail with reference to the following drawings.

[0014] The following describes exemplary embodiments of the present invention in combination with specific circumstances:

[0015] Example 1: Combination Figure 1 As shown, the utility model provides a DC variable frequency speed regulation intelligent clothes drying machine circuit, including a switch control circuit and a drive motor M1 connected to the output end of the switch control circuit, the input end of the switch control circuit is connected to the secondary side of the DC transformer circuit, the primary side of the DC transformer circuit is connected to the mains through a bridge rectifier circuit DD1, and the secondary side of the DC transformer circuit is also connected to a lighting circuit; the lighting circuit, the switch control circuit and the primary side of the DC transformer circuit are electrically connected to a control module through wiring, and the control module mainly includes a single-chip microcomputer, an antenna E1 connected to the single-chip microcomputer, and control output terminals ZQ pin, SQ pin, and MQ pin.

[0016] The input end of the bridge rectifier circuit DD1 is connected in parallel with a first varistor RV1, a fourth capacitor C4, and a series circuit of a third resistor R3 and a seventh resistor R7, and the branch at the L end of the rectifier circuit is connected in series with a fuse F1 and a second varistor RV2; the L pin of the control module is connected to the L end of the mains via the fourth resistor R4, and the N pin of the control module is connected to the N end of the mains, wherein the L end of the mains is the live wire and the N end is the neutral wire.

[0017] The primary side of the DC transformer circuit is connected in series with a first MOS tube ZQ, in parallel with a fifth resistor R5 and an eighth resistor R8 series circuit, and in parallel with a sixth resistor R6 and a second capacitor C2 connected in parallel and then connected in series with a fifth diode D5 circuit; the eighth resistor R8 is connected to the S pole of the first MOS tube ZQ, the anode of the fifth diode D5 is connected to the D pole of the first MOS tube ZQ, and the G pole of the first MOS tube ZQ is connected to the ZQ pin of the control module.

[0018] The secondary side of the DC transformer circuit is connected with a switch control circuit, which includes a second MOS tube SQ and a third MOS tube XQ; the second MOS tube SQ and the second diode D2 or the third MOS tube XQ and the sixth diode D6 are connected to the positive electrode of the drive motor M1; the negative electrode of the drive motor M1 is connected to the middle end of the DC transformer circuit, and the negative electrode of the drive motor M1 is connected to the negative electrode of the second diode D2 through the third diode D3 and the third capacitor C3 connected in parallel, and the negative electrode of the drive motor M1 is connected to the positive electrode of the sixth diode D6 through the fifth capacitor C5 connected in parallel with the seventh diode D2; the G pole of the second MOS tube SQ and the G pole of the third MOS tube XQ are respectively connected to the SQ pin and the XQ pin of the control module.

[0019] The lighting circuit comprises a lighting lamp LED1 and a fourth MOS tube MQ which are connected in series on the secondary side of the DC transformer circuit. The G pole of the fourth MOS tube MQ is connected to the MQ terminal of the control module.

[0020] Example 2: Combination Figure 1A DC variable frequency speed regulating intelligent clothes drying machine circuit connection relationship is as follows: the external power supply is the mains, the live wire L of the external power supply passes through the insurance F1, then through the first varistor RV1, connected to one end of the third resistor R3, connected to one end of the fourth resistor R4, connected to the 1st foot of the bridge rectifier circuit DD1, and connected to one end of the fourth capacitor C4; the neutral wire N of the external power supply is connected to one end of the first varistor RV1, connected to the other end of the fourth capacitor C4, connected to the other end of the seventh resistor R7, and connected to the bridge rectifier circuit DD The 3rd pin of the bridge rectifier circuit DD1 is connected to the power input terminal N of the clothes drying machine control module (model LRKZ001), the other end of the first varistor RV1 is connected to one end of the insurance F1, and is connected to one end of the second thermistor RV2; the other end of the fourth resistor R4 is connected to the power input terminal L of the clothes drying machine control module; the 2nd pin of the bridge rectifier circuit DD1 is connected to the positive electrode of the first capacitor C1, is connected to one end of the fifth resistor R5, is connected to one end of the sixth resistor R6, is connected to one end of the second capacitor C2, and is connected to the initial of the DC transformer circuit T1. The fourth pin of the bridge rectifier circuit DD1 is connected to the negative electrode of the first capacitor C1, to one end of the eighth resistor R8, and to the S electrode of the first MOS tube ZQ. The other end of the fifth resistor R5 is connected to the other end of the eighth resistor R8. The other end of the sixth resistor R6 is connected to the other end of the second capacitor C2 and to the negative electrode of the sixth diode D6. The anode of the sixth diode D6 is connected to the D electrode of the first MOS tube ZQ. The D electrode of the first MOS tube ZQ is connected to the other end of the primary of the DC transformer circuit T1. The first MOS tube The G pole of ZQ is connected to the ZQ foot of the control module drive signal output terminal; one end of the secondary of the DC transformer circuit T1 is connected to the positive pole of the second diode D2, the other end of the secondary of the DC transformer circuit T1 is connected to the negative pole of the sixth diode D6, the center end of the secondary side of the DC transformer circuit is connected to the positive pole of the eighth diode D8, the negative pole of the seventh diode D7, the negative pole of the capacitor C3, the positive pole of the capacitor C5, the negative pole of the motor M1, and the ground GND terminal, the negative pole of the second diode D2 is connected to the eighth diode D8, the negative pole of the seventh diode D7, the negative pole of the capacitor C3, the positive pole of the capacitor C5, the negative pole of the motor M1, and the ground GND terminal. The negative electrode of D8 is connected to the positive electrode of the third capacitor C3, to the +24V terminal, to the D electrode of the second MOS tube SQ, to the positive electrode of the lighting lamp LED1, and to the DC power input +24V terminal of the clothes drying machine control module. The S electrode of the second MOS tube SQ is connected to the D electrode of the third MOS tube XQ, and to the positive electrode of the drive motor M1. The G electrode of the second MOS tube SQ is connected to the drive signal SQ pin of the control module, and the G electrode of the third MOS tube XQ is connected to the drive signal XQ pin of the clothes drying machine control module.The anode of the sixth diode D6 is connected to the anode of the seventh diode D7, to the cathode of the fifth capacitor C5, to the S electrode of the third MOS tube XQ, to the S electrode of the fourth MOS tube MQ, to the -24V terminal of the power supply, and to the DC power input -24V terminal of the clothes drying machine control module. The G electrode of the fourth MOS tube MQ is connected to the drive signal MQ terminal of the clothes drying machine control module. The ANT terminal of the clothes drying machine control module is connected to the antenna E1, and the L terminal of the clothes drying machine control module is connected to the other end of the fourth resistor R4.

[0021] Working process: The switch control circuit uses two high-power high-frequency MOS power switch tubes and a clothes drying machine control module. The clothes drying machine control module drives the on and off of the two high-power high-frequency MOS power switch tubes to realize the control of the lifting and lowering process of the clothes drying machine's drying rod; during the rising process, driven by the clothes drying machine control module, the second MOS tube SQ is turned on and the third MOS tube XQ is turned off, driving the motor M1 to rotate clockwise, and the clothes drying machine realizes variable frequency speed regulation to rise; during the descent of the clothes drying machine, driven by the control module, the third MOS tube XQ is turned on and the second MOS tube SQ is turned off, the motor M1 rotates counterclockwise, and the clothes drying machine realizes variable frequency speed regulation to descend.

[0022] Finally, it should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0023] The above specific examples are used to illustrate the principle and implementation mode of the present invention. The description of the above embodiments is only used to help understand the method and core idea of ​​the present invention. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation mode and application scope. In summary, the content of this specification should not be understood as a limitation on the present invention.

Claims

1. A DC variable frequency speed regulation intelligent clothes drying machine circuit, comprising a switch control circuit and a drive motor connected to the output end of the switch control circuit, characterized in that: The input end of the switch control circuit is connected to the secondary side of the DC transformer circuit, the primary side of the DC transformer circuit is connected to the AC power through a bridge rectifier circuit, and the secondary side of the DC transformer circuit is also connected to a lighting circuit; the lighting circuit, the switch control circuit and the primary side of the DC transformer circuit are electrically connected to the control module through wiring, and the control module mainly includes a single-chip microcomputer, an antenna connected to the single-chip microcomputer and a control output end.

2. The DC variable speed intelligent clothes drying machine circuit according to claim 1 is characterized by: The input end of the bridge rectifier circuit is connected in parallel with a first varistor, a fourth capacitor, and a series circuit of a third resistor and a seventh resistor, and the L-end branch of the rectifier circuit is connected in series with a fuse and a second varistor; the L pin of the control module is connected to the L end of the mains via the fourth resistor, and the N pin of the control module is connected to the N end of the mains.

3. The DC variable speed intelligent clothes drying machine circuit according to claim 1 is characterized by: The primary side of the DC transformer circuit is connected in series with a first MOS tube, in parallel with a fifth resistor and an eighth resistor series circuit, and in parallel with a sixth resistor and a second capacitor connected in parallel and then in series with a fifth diode circuit; the eighth resistor is connected to the S pole of the first MOS tube, the anode of the fifth diode is connected to the D pole of the first MOS tube, and the G pole of the first MOS tube is connected to the ZQ pin of the control module.

4. The DC variable speed intelligent clothes drying machine circuit according to claim 3 is characterized by: The secondary side of the DC transformer circuit is connected with a switch control circuit, and the switch control circuit includes a second MOS tube and a third MOS tube; the second MOS tube and the second diode or the third MOS tube and the sixth diode are connected to the positive electrode of the drive motor; the negative electrode of the drive motor is connected to the middle end of the DC transformer circuit, and the negative electrode of the drive motor is connected to the negative electrode of the second diode through the third diode and the third capacitor connected in parallel, and the negative electrode of the drive motor is connected to the positive electrode of the sixth diode through the fifth capacitor and the seventh diode connected in parallel; the G pole of the second MOS tube and the G pole of the third MOS tube are respectively connected to the SQ pin and the XQ pin of the control module.

5. The DC variable speed intelligent clothes drying machine circuit according to claim 1 is characterized by: The lighting circuit comprises a lighting lamp and a fourth MOS tube which are connected in series to a DC transformer circuit, and a G pole of the fourth MOS tube is connected to an MQ terminal of the control module.

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