Voltage regulation and speed regulation control circuit of an air pump

Patent metadata

Field	Value
Publication number	US-12448962-B2
Application number	US-202118265942-A
Country	US
Kind code	B2
Filing date	Dec 8, 2021
Priority date	Dec 9, 2020
Publication date	Oct 21, 2025
Grant date	Oct 21, 2025

Abstract

A voltage regulation and speed regulation control circuit ( 100, 130, 200, 250 ) of an air pump ( 102 ) is provided. The voltage regulation and speed regulation control circuit ( 100, 130, 200, 250 ) may comprise a chopper power supply circuit ( 104, 202 ), a full bridge rectifier circuit ( 106, 204 ) and a switch ( 108, 212 ). The switch ( 108, 212 ) may be used to switch the chopper power supply circuit ( 104, 202 ) or the full bridge rectifier circuit ( 106, 204 ) to be connected to the positive and negative input terminals ( 103, 105 ) of the air pump ( 102 ). The output voltage of the chopper power supply circuit ( 104, 202 ) and the output voltage of the full bridge rectifier circuit may be different ( 106, 204 ).

First claim

What is claimed is:

1. A voltage regulation and speed regulation control circuit of an air pump having a positive input terminal and a negative input terminal, comprising:
a chopper power supply circuit operatively couplable to the air pump;
a full bridge rectifier circuit operatively couplable to the air pump; and
a switch operatively couplable to the chopper power supply circuit and operatively couplable to the full bridge rectifier, wherein the switch has a first contact wherein the chopper power supply circuit is to be connected to the positive and negative input terminals of the air pump and a second contact wherein the full bridge rectifier circuit is to be connected to the positive and negative input terminals of the air pump, the chopper power supply circuit having a first output voltage when connected to the air pump and the full bridge rectifier circuit having a second output voltage when connected to the air pump, the first output voltage being different than the second output voltage, and a thermal protection module positioned on a live line of the voltage regulation and speed regulation control circuit, the live line operatively coupled to the positive input terminal and operatively couplable to the switch.

2. The voltage regulation and speed regulation control circuit according to claim 1 , wherein the switch is arranged on the live line, the chopper power supply circuit including one of a diode or a thyristor, the first contact of the switch is connected to one end of the diode or the thyristor of the chopper power supply circuit and the second contact of the switch is connected to an input end of the full bridge rectifier circuit;
the other end of the diode or the thyristor of the chopper power supply circuit is connected to the input end of the full bridge rectifier circuit.

3. The voltage regulation and speed regulation control circuit according to claim 2 , wherein the chopper power supply circuit includes the diode, a cathode of the diode of the chopper power supply circuit is connected to the second contact of the switch and to the input end of the full bridge rectifier circuit through the thermal protection module.

4. The voltage regulation and speed regulation control circuit according to claim 2 , wherein the chopper power supply circuit includes the diode, a cathode of the diode of the chopper power supply circuit and the second contact of the switch are connected to the input end of the full bridge rectifier circuit through a first thermal protection module and a second thermal protection module, respectively.

5. The voltage regulation and speed regulation control circuit according to claim 1 , wherein the chopper power supply circuit and the full bridge rectifier circuit are connected to one zero line.

6. The voltage regulation and speed regulation control circuit according to claim 5 , wherein the chopper power supply circuit and the full bridge rectifier circuit each have a respective live line; the first contact of the switch is connected to the live line of the chopper power supply circuit, the second contact of the switch is connected to the positive output end of the full bridge rectifier circuit, and a common contact of the switch is connected to the positive input terminal of the air pump.

7. The voltage regulation and speed regulation control circuit according to claim 6 , wherein each of the live line of the chopper power supply circuit and the live line of the full bridge rectifier circuit include a respective thermal protection module.

8. The voltage regulation and speed regulation control circuit according to claim 6 , wherein the live line of the chopper power supply circuit and the live line of the full bridge rectifier circuit include the common thermal protection module.

9. An inflatable product having an air pump and including the voltage regulation and speed regulation control circuit according to claim 1 .

10. The inflatable product of claim 9 , wherein the inflatable product is an inflatable mattress, an inflatable trampoline, an inflatable sofa, or an inflatable toy.

11. A voltage regulation and speed regulation control circuit of an air pump having a positive input terminal and a negative input terminal, comprising:
a chopper power supply circuit operatively couplable to the air pump;
a full bridge rectifier circuit operatively couplable to the air pump;
a switch operatively couplable to the chopper power supply circuit and operatively couplable to the full bridge rectifier, wherein the switch has a first contact wherein the chopper power supply circuit is to be connected to the positive and negative input terminals of the air pump and a second contact wherein the full bridge rectifier circuit is to be connected to the positive and negative input terminals of the air pump, the chopper power supply circuit having a first output voltage when connected to the air pump and the full bridge rectifier circuit having a second output voltage when connected to the air pump, the first output voltage being different than the second output voltage, wherein the switch is arranged on a live line, the chopper power supply circuit including one of a diode or a thyristor, the first contact of the switch is connected to one end of the diode or the thyristor of the chopper power supply circuit and the second contact of the switch is connected to an input end of the full bridge rectifier circuit; the other end of the diode or the thyristor of the chopper power supply circuit is connected to the input end of the full bridge rectifier circuit, wherein the chopper power supply circuit includes the diode, a cathode of the diode of the chopper power supply circuit and the second contact of the switch are connected to the input end of the full bridge rectifier circuit through a first thermal protection module and a second thermal protection module, respectively.

12. A voltage regulation and speed regulation control circuit of an air pump having a positive input terminal and a negative input terminal, comprising:
a chopper power supply circuit operatively couplable to the air pump;
a full bridge rectifier circuit operatively couplable to the air pump; and
a switch operatively couplable to the chopper power supply circuit and operatively couplable to the full bridge rectifier, wherein the switch has a first contact wherein the chopper power supply circuit is to be connected to the positive and negative input terminals of the air pump and a second contact wherein the full bridge rectifier circuit is to be connected to the positive and negative input terminals of the air pump, the chopper power supply circuit having a first output voltage when connected to the air pump and the full bridge rectifier circuit having a second output voltage when connected to the air pump, the first output voltage being different than the second output voltage, wherein the chopper power supply circuit and the full bridge rectifier circuit consume are connected to one zero line;
wherein each of a live line of the chopper power supply circuit and a live line of the full bridge rectifier circuit include a respective thermal protection module.

13. The voltage regulation and speed regulation control circuit according to claim 12 , wherein the first contact of the switch is connected to the live line of the chopper power supply circuit, the second contact of the switch is connected to the positive output end of the full bridge rectifier circuit, and a common contact of the switch is connected to the positive input terminal of the air pump.

14. The voltage regulation and speed regulation control circuit according to claim 13 , wherein the live line of t

Assignees

• Intex Marketing Ltd

Inventors

• Huang zhi xiong
• Zhang Ying Biao

Classifications

• H02H7/085

  against excessive load {(H02H6/00 takes precedence)} · CPC title

• H02P7/292

  using static converters, e.g. AC to DC · CPC title

• F04B35/04

  the means being electric · CPC title

• Y02B30/70

  Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating · CPC title

• H02P7/28

  using semiconductor devices · CPC title