US20210053710A1

US20210053710A1 - Separable evacuation device

Info

Publication number: US20210053710A1
Application number: US16/999,492
Authority: US
Inventors: Nieh Cheng CHEN; Poon Kai KEI; Leung Ka HIM; Chan Ka LEUNG
Original assignee: Defond Electech Co Ltd; Defond Components Ltd
Current assignee: Defond Electech Co Ltd; Defond Components Ltd
Priority date: 2019-08-23
Filing date: 2020-08-21
Publication date: 2021-02-25
Also published as: CN210784082U; FR3100028B3; DE202020104853U1; ES1256344U; FR3100028A3; ES1256344Y

Abstract

The present disclosure relates to the technical field of small household appliances and discloses a separable evacuation device. The separable evacuation device includes an evacuation module. The evacuation module includes a base, which is connected to an opening of a to-be-evacuated container; a vacuum pump, which is disposed on the base and configured to vacuum the to-be-evacuated container; a power supply assembly, which is connected to the vacuum pump and configured to supply power to the vacuum pump; and a control assembly, which is connected to the power supply assembly and the vacuum pump and includes a vacuum pressure switch. The vacuum pressure switch is configured to detect an air pressure value in the to-be-evacuated container and control the power supply assembly to perform one of supplying power to the vacuum pump or powering off the vacuum pump.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims priority to a Chinese patent application No. 201921389208.1 filed on Aug. 23, 2019, disclosures of which are incorporated herein by reference in its entirety.

TECHNICAL FIELD

The present disclosure relates to the technical field of small household appliances, in particular to a separable evacuation device.

BACKGROUND

Vacuum anti-oxidation stirring technologies can reduce the oxidation degree of food ingredients during the stirring process and lock the nutrition of the food ingredients, thereby bringing food or drink which is fresher, more delicious and with the most retained nutrients.
The technical problem that those skilled in the art need to face is how to make the container automatically keep a specific air pressure value.

SUMMARY

The present disclosure is to provide a separable evacuation device which can automatically open or close to keep an air pressure value of a to-be-evacuated container not exceeding a preset value.
A separable evacuation device includes an evacuation module, where the evacuation module includes a base, which is connected to an opening of a to-be-evacuated container; a vacuum pump, which is disposed on the base and configured to vacuum the to-be-evacuated container; a power supply assembly, which is connected to the vacuum pump and configured to supply power to the vacuum pump; and a control assembly, which is connected to the power supply assembly and the vacuum pump and includes a vacuum pressure switch, where the vacuum pressure switch is configured to detect an air pressure value in the to-be-evacuated container and control the power supply assembly to perform one of supplying power to the vacuum pump or powering off the vacuum pump.
Further, the separable evacuation device further includes an interaction assembly connected to the control assembly, the interaction assembly is configured to display a status of the vacuum pressure switch and input a signal for controlling the vacuum pressure switch.
Further, the control assembly further includes a first electromagnetic wave signal transceiver, a second electromagnetic wave signal transceiver is disposed on the interaction assembly, and the first electromagnetic wave signal transceiver and the second electromagnetic wave signal transceiver can mutually transmit electromagnetic wave signals.
Further, an air port is disposed on the base, a solenoid valve is disposed at the air port, and the solenoid valve is configured to be opened to communicate the to-be-evacuated container with outside atmosphere or be closed to isolate the to-be-evacuated container from the outside atmosphere.
Further, the evacuation module further includes a sealing ring, which is disposed at a connection position of the base and the to-be-evacuated container.
Further, a connection assembly is configured to be further disposed between the evacuation module and the to-be-evacuated container, one end of the connection assembly is detachably connected to the base, and the other end of the connection assembly is detachably connected to the to-be-evacuated container.
Further, the power supply assembly includes a rechargeable battery.
Further, the power supply assembly further includes a wireless charging coil, which is connected to the rechargeable battery and is configured to charge the rechargeable battery.
Further, the control assembly further includes a power switch, which is electrically connected to the power supply assembly and is configured to control an operation of the power supply assembly or stop the operation of the power supply assembly.
In the separable evacuation device provided by the present disclosure, a control assembly controls a power supply assembly to supply power to a vacuum pump, where the control assembly includes a vacuum pressure switch, and an air pressure value in the to-be-evacuated container is detected by the vacuum pressure switch and compared with a turning on and off threshold of the vacuum pressure switch. If the detected air pressure value is higher than the turning on and off threshold, the vacuum pressure switch is turned on, the power supply assembly supplies power to the vacuum pump, and the vacuum pump is turned on to evacuate the to-be-evacuated container; if the detected air pressure value is lower than or equal to the turning on and off threshold, the vacuum pressure switch is turned off, the power supply assembly stops supplying power to the vacuum pump, and the vacuum pump is turned off to stop evacuating the to-be-evacuated container. The separable evacuation device can automatically open or close to keep the pressure value of the to-be-evacuated container not exceeding a preset value.

BRIEF DESCRIPTION OF DRAWINGS

FIG. 1 is a schematic view of an evacuation module according to a specific embodiment of the present disclosure;

FIG. 2 is an exploded view of an evacuation module according to a specific embodiment of the present disclosure; and

FIG. 3 is a schematic view of a separable evacuation device according to a specific embodiment of the present disclosure.

REFERENCE LIST

1 base
2 vacuum pump
3 control circuit board
4 vacuum pressure switch
5 power switch
6 solenoid valve
7 rechargeable battery
8 wireless charging coil
9 sealing ring
101 first connection pipe
102 second connection pipe
11 evacuation module
12 connection assembly
13 to-be-evacuated container.

DETAILED DESCRIPTION

The technical solutions of the embodiments of the present disclosure will be further described in detail below in combination with the drawings. As shown in FIGS. 1 to 3, this embodiment provides a device including an evacuation module 11 and an interaction assembly. The evacuation module 11 includes a base 1, a vacuum pump 2, a power supply assembly and a control assembly, the base 1 is connected to an opening of a to-be-evacuated container 13, the vacuum pump 2 is disposed on one end of the base 1 facing away from the to-be-evacuated container 13, and an evacuation port of the vacuum pump 2 is communicated with the to-be-evacuated container 13. The control assembly is electrically connected between the vacuum pump 2 and the power supply assembly and includes a control circuit board 3 and a vacuum pressure switch 4 connected to the control circuit board 3. The vacuum pressure switch 4 is electrically connected between the power supply assembly and the vacuum pump 2, and a detection portion of the vacuum pressure switch 4 is communicated with the to-be-evacuated container 13. In this embodiment, the controller may be a centralized or distributed controller, for example, the control circuit board 3 may be a separate single-chip microcomputer, such as an STM32 single-chip microcomputer, or may be formed by multiple distributed single-chip microcomputers, a control program may be run in the single-chip microcomputer to control the vacuum pressure switch 4 and other components to achieve the functions.
Specifically, a turning on and off threshold of the vacuum pressure switch 4 is adjusted by the control circuit board 3, and the vacuum pressure switch 4 detects an air pressure value in the to-be-evacuated container 13 and compares the detected air pressure value with the turning on and off threshold. If the detected air pressure value is higher than the turning on and off threshold, the vacuum pressure switch 4 is turned on, the power supply assembly supplies power to the vacuum pump 2, and the vacuum pump 2 is turned on to evacuate the to-be-evacuated container 13; if the detected air pressure value is lower than or equal to the turning on and off threshold, the vacuum pressure switch 4 is turned off, the power supply assembly stops supplying power to the vacuum pump 2, and the vacuum pump 2 is turned off to stop evacuating the to-be-evacuated container 13. In this way, when the air pressure value in the to-be-evacuated container 13 changes, the vacuum pressure switch 4 can automatically control the start and stop of the vacuum pump 2 according to the relationship between the detected air pressure value and the turning on and off threshold, ensuring that the air pressure value in the to-be-evacuated container 13 is not greater than the turning on and off threshold of the vacuum pressure switch 4.
Further, the control assembly further includes a power switch 5 connected to the control circuit board 3 for controlling the powering on and off of the control circuit board 3, that is, controlling the powering on and off of the evacuation module 11.
Further, the evacuation module 11 further includes a solenoid valve 6 connected to the control circuit board 3, an air port is disposed on the base 1. The solenoid valve 6 is disposed at the air port, and can be opened to communicate the to-be-evacuated container 13 with an outside atmosphere or closed to isolate the to-be-evacuated container 13 from the outside atmosphere. Specifically, when the to-be-evacuated container 13 is in an evacuation or pressure holding state, the solenoid valve 6 is in a closed state, and when the vacuum in the to-be-evacuated container 13 needs to be broken, the solenoid valve 6 is opened.
Further, the evacuation module 11 further includes a sealing ring 9, which is disposed on one end of the base 1 connected to the to-be-evacuated container 13 and is configured to keep a pressure difference between an inside and an outside of the to-be-evacuated container 13.
Alternatively, the power supply assembly includes a rechargeable battery 7 and a wireless charging coil 8 connected to the rechargeable battery 7. In this embodiment, the wireless charging coil 8 utilizes an electromagnetic induction principle to receive an electromagnetic signal emitted by an external wireless charger and convert the electromagnetic signal into a current to charge the rechargeable battery 7, which is an existing well-known technology and will not be repeated here.
Alternatively, the vacuum pump 2 is communicated with the to-be-evacuated container 13 through a first connection pipe 101. Specifically, the evacuation port of the vacuum pump 2 is connected to one end of the first connection pipe 101, and the end of the first connection pipe 101 facing away from the evacuation port is communicated with the to-be-evacuated container 13.
Further, the separable evacuation device according to this embodiment further includes the interaction assembly. The interaction assembly includes an input component for an operator to input an instruction and an output component to display an instructed status. The interaction assembly can receive and display a signal from the control circuit board 3, and can also transmit an input signal to the control circuit board 3.
Alternatively, a first electromagnetic wave signal transceiver is disposed on the control circuit board 3, a second electromagnetic wave signal transceiver corresponding to the first electromagnetic wave signal transceiver is disposed on the interaction assembly, and the first electromagnetic wave signal transceiver and the second electromagnetic wave signal transceiver mutually transmit electromagnetic wave signals to transmit an instruction and a feedback result.
Alternatively, the input component is a mechanical key or a virtual key, and the output component is a display screen.
Alternatively, the separable evacuation device further includes a connection assembly 12, the connection assembly 12 is disposed between the base 1 and the to-be-evacuated container 13, and the connection assembly 12 includes a first end connected to the base 1 and a second end connected to the to-be-evacuated container 13. Specifically, according to different opening shapes and opening sizes of the to-be-evacuated container 13, a connection assembly 12 having the second end with a corresponding shape and size may be adopted. Alternatively, the first end and the second end are detachably connected, and according to different opening shapes and opening sizes of the to-be-evacuated container 13, the first end may be connected to the second end with the corresponding shape and size.

Claims

What is claimed is:

1. A separable evacuation device, comprising an evacuation module, wherein the evacuation module comprises:

a base, which is connected to an opening of a to-be-evacuated container;

a vacuum pump, which is disposed on the base and configured to vacuum the to-be-evacuated container;

a power supply assembly, which is connected to the vacuum pump and configured to supply power to the vacuum pump; and

a control assembly, which is connected to the power supply assembly and the vacuum pump and comprises a vacuum pressure switch, wherein the vacuum pressure switch is configured to detect an air pressure value in the to-be-evacuated container and control the power supply assembly to perform one of supplying power to the vacuum pump or powering off the vacuum pump.

2. The separable evacuation device according to claim 1, further comprising an interaction assembly connected to the control assembly, wherein the interaction assembly is configured to display a status of the vacuum pressure switch and input a signal for controlling the vacuum pressure switch.

3. The separable evacuation device according to claim 2, wherein the control assembly further comprises a first electromagnetic wave signal transceiver, a second electromagnetic wave signal transceiver is disposed on the interaction assembly, and the first electromagnetic wave signal transceiver and the second electromagnetic wave signal transceiver mutually transmit electromagnetic wave signals.

4. The separable evacuation device according to claim 1, wherein an air port is disposed on the base, a solenoid valve is disposed at the air port, and the solenoid valve is configured to be opened to communicate the to-be-evacuated container with outside atmosphere or be closed to isolate the to-be-evacuated container from the outside atmosphere.

5. The separable evacuation device according to claim 1, wherein the evacuation module further comprises a sealing ring, which is disposed at a connection position of the base and the to-be-evacuated container.

6. The separable evacuation device according to claim 1, wherein a connection assembly is configured to be further disposed between the evacuation module and the to-be-evacuated container, one end of the connection assembly is detachably connected to the base, and the other end of the connection assembly is detachably connected to the to-be-evacuated container.

7. The separable evacuation device according to claim 1, wherein the power supply assembly comprises a rechargeable battery.

8. The separable evacuation device according to claim 7, wherein the power supply assembly further comprises a wireless charging coil, which is connected to the rechargeable battery and is configured to charge the rechargeable battery.

9. The separable evacuation device according to claim 1, wherein the control assembly further comprises a power switch, which is electrically connected to the power supply assembly and is configured to control an operation of the power supply assembly or stop the operation of the power supply assembly.