Electric air pump system

Patent metadata

Field	Value
Publication number	US-11268529-B2
Application number	US-201916370647-A
Country	US
Kind code	B2
Filing date	Mar 29, 2019
Priority date	Mar 30, 2018
Publication date	Mar 8, 2022
Grant date	Mar 8, 2022

Abstract

An electric air pump system includes a housing in fluid communication with an inflatable body, a first valve, a first air pump for inflating and deflating the inflatable body, a second air pump for inflating the inflatable body, an air pressure sensor configured to detect the inner pressure of the inflatable body, and first and second prompting devices. The system also includes a control device electrically coupled to the first and second air pumps, the air pressure sensor, and the first and second prompting devices. The first prompting device outputs a first indication signal when the inner pressure is less than or equal to a first air pressure threshold and the second prompting device outputs a second indication signal when the second air pump inflates the inflatable body.

First claim

What is claimed is:

1. An electric air pump system, comprising:
a housing defining a receiving cavity, a housing opening and a first vent in fluid communication with an inflatable body;
a first valve for opening and closing the first vent;
a first air pump for inflating and deflating the inflatable body, wherein the first air pump is configured to inflate the inflatable body to a first air pressure threshold;
a second air pump for inflating the inflatable body after the inflatable body is inflated by the first air pump, wherein the second air pump is configured to inflate the inflatable body when an inner pressure of the inflatable body is less than or equal to a second air pressure threshold and greater than or equal to a third air pressure threshold;
an air pressure sensor in fluid communication with the inflatable body and configured to detect the inner pressure;
a first prompting device and a second prompting device; and
a control device electrically coupled to the first air pump, the second air pump, the air pressure sensor, and the first and second prompting devices;
wherein:
the first prompting device is configured to indicate that the inner pressure is less than or equal to the first air pressure threshold and greater than the second air pressure threshold; and
the second prompting device is configured to indicate that the second air pump is inflating the inflatable body.

2. The electric air pump system of claim 1 , further comprising:
an air passage switch device coupled to the first air pump and configured to switch between an inflation air passage, a deflation air passage, and a closed air passage;
wherein the air passage switch device is further configured to control the first valve to permit or prevent fluid flow through the first vent.

3. The electric air pump system of claim 2 , wherein the air passage switch device further comprises:
an inner tube configured to move axially in a first direction or in a second direction opposite from the first direction within an outer tube to permit or prevent fluid flow through the first vent; and
an arc sheet coupled to the inner tube and configured to trigger a first air pump switch to switch a power source on or off.

4. The electric air pump system of claim 1 , wherein the first prompting device is further configured to output a power switching-on signal when the electric air pump system is connected with a power source.

5. The electric air pump system of claim 1 , wherein after the first air pump stops inflation:
if the inner pressure is less than or equal to the second air pressure threshold and greater than or equal to the third air pressure threshold, the second air pump inflates the inflatable body and the second prompting device indicates that the second air pump is inflating the inflatable body; and
if the inner pressure reaches the first air pressure threshold, the second air pump stops inflating the inflatable body, and the second prompting device stops indicating.

6. The electric air pump system of claim 1 , wherein after the first air pump stops inflation, if the inner pressure falls below the third air pressure threshold, the second air pump stops inflating the inflatable body and the second prompting device stops indicating.

7. The electric air pump system of claim 1 , wherein when the first air pump inflates the inflatable body for at least a first period of time and the inner pressure is less than the first air pressure threshold, at least one of the first prompting device, the second prompting device, and a third prompting device outputs an indication that the first time period has elapsed.

8. The electric air pump system of claim 1 , wherein when the first air pump inflates the inflatable body for at least a period of time and the inner pressure sensed by the air pressure sensor is less than the first air pressure threshold, the control device instructs the first air pump to stop operation.

9. The electric air pump system of claim 1 , wherein the first air pressure threshold is 240mmH 2 O, the second air pressure threshold is 200mmH 2 O, and the third air pressure threshold is 150mmH 2 O.

10. The electric air pump system of claim 1 , wherein the first prompting device comprises a first light-emitting device that emits light having a first color.

11. The electric air pump system of claim 10 , wherein the second prompting device comprises a second light-emitting device that emits light having a second color.

12. The electric air pump system of claim 1 , wherein the first prompting device continuously or intermittently emits for a period of time.

13. The electric air pump system of claim 1 , wherein the second prompting device continuously or intermittently emits for a period of time.

14. The electric air pump system of claim 1 , further comprising a third prompting device comprising a sound-generating device electrically coupled to the control device, wherein the sound-generating device is configured to output a first sound signal indicating that the second air pump is initiated to inflate the inflatable body and output a second sound signal indicating that the air pressure has reached the first air pressure threshold and the second air pump has stopped operating.

15. The electric air pump system of claim 14 , wherein the sound-generating device is further configured to:
output a power connection sound signal indicating that the electric air pump system is connected with a power source; and
output a fault sound signal indicating that a period of time has elapsed and the inner pressure is less than the first air pressure threshold.

16. The electric air pump system of claim 1 , further comprising:
a panel enclosing an opening in the housing and defining a second vent;
wherein:
the control device comprises a control circuit board electrically coupled to the first prompting device, the second prompting device, and a third prompting device; and
the panel defines a plurality of display holes through which the first, second, and third prompting devices are disposed.

17. The electric air pump system of claim 16 , further comprising:
a lamp and a lamp switch electrically coupled to the control circuit board and located on the panel, wherein the lamp switch is configured to turn on the lamp.

18. The electric air pump system of claim 1 , further comprising:
a shock absorber disposed between the second air pump and a mounting member, wherein the shock absorber reduces vibration from operation of the second air pump otherwise reaching the inflatable body.

19. An electric air pump system, comprising:
an inflatable body;
a first air pump configured to inflate the inflatable body to a first air pressure threshold;
a first prompting device configured to output a first signal when an inner air pressure of the inflatable body is greater than a second air pressure threshold;
a second air pump configured to inflate the inflatable body to the first air pressure threshold if the inner pressure is between the second air pressure threshold and a third air pressure threshold after the inflatable body has previously reached the first air pressure threshold;
a second prompting device configured to output a second signal when the second air pump inflates the inflatable body;
a third prompting device configured to output a default signal; and
a control device coupled to at least the first air pump and the third prompting device and configured to:
turn off the first air pump and output the default signal if the first air pump does not inflate the inflatable

Assignees

• Bestway Inflatables & Mat Corp

Inventors

• Huang Shuiyong
• Qiu Wanbin
• Yin Ruoxun
• Tan Qinliang
• Chen Yalan

Classifications

• F04D27/005

  by changing flow path between different stages or between a plurality of compressors; Load distribution between compressors · CPC title

• F04D25/084 Primary

  hand fans · CPC title

• F04D25/16 Primary

  Combinations of two or more pumps {; Producing two or more separate gas flows} · CPC title

• F04D25/0666

  a sensor is integrated into the pump/motor design · CPC title

• F04D27/008

  Stop safety or alarm devices, e.g. stop-and-go control; Disposition of check-valves · CPC title