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Double-voltage air pump driving circuit and pump body thereof

A technology for driving circuits and air pumps, applied in pumps, pump control, piston pumps, etc., can solve troubles and other problems, and achieve the effect of safe switching of circuits

Pending Publication Date: 2018-05-11
佛山鸿沣医疗科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, most of the anti-decubitus air mattress air pump products on the market are of a single voltage type: 110V or 220V, but some countries use both 110V and 220V for civil electricity, such as Brazil, and the electrical appliances of the above products must be touched when using To different voltages, it is troublesome to use a transformer to change the voltage

Method used

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  • Double-voltage air pump driving circuit and pump body thereof
  • Double-voltage air pump driving circuit and pump body thereof

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Embodiment Construction

[0011] Such as figure 1 , figure 2 As shown, a dual-voltage air pump driving circuit and its pump body include the driving circuit and its pump body structure; the driving circuit includes a control chip U1, resistors R1 to R12, capacitors C1 to C3, and polar capacitors E1, E2, Varistor VDR1, diode D1, rectifier bridge D2, Zener diodes ZD1, ZD2, triodes Q1 to Q3, relays J2 to J4, relay switch K1; the first pin of the control chip U1, one end of the capacitor C3, and one end of the resistor R7 One end and one end of resistor R8 are connected to the positive 5V voltage; the other end of resistor R8 and one end of resistor R11 are connected to the third pin of U1, and the collector of transistor Q3 and the other end of resistor R7 are connected to The 4th pin of U1, the 8th pin of U1 and the other end of the capacitor C3 are grounded together, and the 2nd, 5th, 6th, and 7th pins of U1 are empty; the base of the transistor Q3 and the resistor R6 One end is connected, the other ...

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Abstract

The invention relates to a double-voltage air pump driving circuit and a pump body thereof. The double-voltage air pump driving circuit is characterized by comprising a driving circuit and a pump bodystructure of the driving circuit, wherein the driving circuit comprises a control chip U1, resistors R1-R12, capacitors C1-C3, electrode capacitors E1 and E2, a voltage dependent resistor VDR1, a diode D1, a rectifier bridge D2, voltage stabilizing diodes ZD1 and ZD2, triodes Q1-Q3, relays J2-J4 and a relay switch K1. According to the scheme, a voltage recognizing circuit is combined with the control chip to guide the relays to switch off or on a conversion circuit so as to realize the safe switching of the circuit, and voltages 110V and 220V can be compatibly used.

Description

technical field [0001] The invention relates to the technical field of air pump circuits, in particular to a dual-voltage air pump drive circuit and a pump body thereof. technical background [0002] Bed sores usually occur in people who are bedridden for a long time because of illness or disability or because of disability. The long-term bedridden person is unable to adjust the body position independently due to weakness or disability or loss of consciousness, and stays in the same lying position for a long time. In this case, if the nursing work is a little negligent, it is extremely unlikely to form bedsores. The anti-bedsore air mattress is specially designed and manufactured to relieve the troubles and pains of long-term bedridden patients and to reduce the labor intensity of nurses. It is suitable for long-term bedridden patients and is currently one of the most effective medical devices for preventing bedsores. At present, most of the anti-decubitus air mattress air...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04B35/04F04B49/06
CPCF04B35/04F04B49/06
Inventor 高波
Owner 佛山鸿沣医疗科技有限公司
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