CN205304356U - Washing machine power generation system - Google Patents

Abstract

The utility model relates to the technical field of household electrical appliances, in particular to a power generation system for a washing machine, which includes a drive motor, a power generation device and an energy storage battery, the drive motor drives the power generation device to generate electricity, and the power generation device charges the energy storage battery . The power generation system of the washing machine of the utility model utilizes the mechanical energy brought by the rotational inertia of the washing machine drum or wave wheel from high speed to rest, and converts it into electric energy by means of the braking system. Mechanical energy is converted into electrical energy, and there are two charging methods to ensure the power of the energy storage battery and ensure the safety and reliability of the power supply. In addition, the power of the drainage equipment and the weak current control system mainly comes from the power generation system of the washing machine itself, and a small amount of external grid power is used to achieve energy saving.

Description

A washing machine power generation system

technical field

The utility model relates to the technical field of household electrical appliances, in particular to a new power generation device for an energy-saving washing machine.

Background technique

Existing washing machines in the field of household appliances are mainly divided into two categories: drum and pulsator; and the energy consumption of these two types of washing machines is mainly reflected in three major parts, specifically: heating system (some low-end models may not be equipped with this function ), washing tub rotation drive motor, waste water discharge system;

Except for a small number of high-end drum washing machines that gradually use variable frequency induction motors as drives, most of them still use induction motors with low efficiency and high power consumption as drives. Consumption is a burden.

However, all washing machines currently on the market use the upper drain pump or the lower drain valve to discharge waste water. The power used by the upper drain pump or the lower drain valve comes from the power grid outside the washing machine system. It is also a part of the energy consumption system of the washing machine; the power of the small lower drain valve is 6W, the upper drain pump of the general household 5-9kg washing machine is 30W, and the upper drain pump of a slightly larger capacity washing machine is 60W, which also increases the overall energy consumption of the washing machine.

Utility model content

The purpose of the utility model is to overcome the defects of the prior art and provide a novel energy-saving, safe and reliable washing machine power generation system.

In order to realize the purpose of this utility model, the technical scheme adopted is:

The power generation system of the washing machine of the present invention includes a driving motor, a power generating device and an energy storage battery, the driving motor drives the power generating device to generate electricity, and the power generating device charges the energy storage battery.

The power generating device of the utility model is a brake system, which is installed on the drive motor, and when the drive motor decelerates or brakes, the brake system charges the energy storage battery.

The brake system described in the utility model is an EABS electronic brake system.

The power generating device of the utility model is a generator, the motor shaft of the driving motor is connected to the generator, the driving motor drives the generator to rotate and generate electricity, and the generator charges the energy storage battery.

The drive motor of the utility model is a double-shaft extension motor, one end of the motor shaft of the drive motor drives the pulsator or the drum to rotate, and the other end of the motor shaft is connected to the main shaft of the generator through a flexible coupling.

The drive motor of the utility model is powered by the main power supply of the washing machine, and the energy storage battery supplies power to the drain pump or drain valve and/or the weak current control system.

The energy storage battery of the utility model is connected to the circuit of the main power supply of the washing machine, and the conduction switch control unit is connected in series in the circuit of the main power supply of the washing machine. When the power of the energy storage battery is lower than the rated power, the conduction switch control unit Controlling the main power supply of the washing machine to charge the energy storage battery.

The washing machine power generation system of the present utility model has the following advantages:

1) Utilize the mechanical energy brought by the rotational inertia of the washing machine drum or pulsator from high speed to static, and convert it into electrical energy with the help of the braking system. At the same time, the generator converts the mechanical energy into electrical energy through the principle of electromagnetic conversion during normal operation or deceleration braking. Two charging methods to ensure the power of the energy storage battery and ensure the safety and reliability of the power supply;

2) The power supply of the drain pump, drain valve and weak current control system is mainly from the power generation system of the washing machine itself, and a small amount of external grid power is used to achieve energy saving.

Description of drawings

Below in conjunction with accompanying drawing and specific embodiment, the utility model is described in further detail.

Fig. 1 is a schematic diagram of a washing machine power generation system of the present invention;

Fig. 2 is a schematic diagram of the circuit connection of the main power supply of the washing machine of the present invention.

Among them: driving motor 1, braking system 2, generator 3, energy storage battery 4, drainage pump 5, weak current control system 6, drainage valve 7, main power supply of washing machine 8, conduction switch control unit 9, and pulsator 10.

detailed description

In order to make the technical problems, technical solutions and beneficial effects solved by the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not intended to limit the utility model.

In describing the present invention, it should be understood that the terms "radial", "axial", "upper", "lower", "top", "bottom", "inner", "outer" etc. indicate The orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation or be constructed in a specific orientation and operation, and therefore cannot be construed as a limitation of the present utility model. In the description of the present utility model, unless otherwise specified, "plurality" means two or more.

In the description of the present utility model, it should be noted that, unless otherwise clearly stipulated and limited, the terms "installation", "setting", and "connection" should be understood in a broad sense, for example, it can be a fixed connection or an optional connection. Disassembled connection, or integral connection; it can be directly connected or indirectly connected through an intermediary. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present utility model according to specific situations.

As shown in FIG. 1 , the power generation system of the washing machine in this embodiment includes a drive motor 1 for driving the pulsator of the washing machine to rotate, a power generator and an energy storage battery 4 . The drive motor 1 drives the power generator to generate electricity, and the power generator charges the energy storage battery 4 .

The power generating device in this embodiment can be the brake system 2 or the generator 3, and the two power generation methods can be installed and used at the same time, or one of the power generation methods can be used alone to generate electricity, and the specific implementation methods are as follows:

The power generation device is the braking system 2, and the braking system 2 is installed on the driving motor 1. When the driving motor 1 decelerates or brakes, the braking system 2 charges the energy storage battery 4. Among them, the braking system 2 is an EABS electronic braking system. When the driving motor 1 When decelerating or braking, the winding of the driving motor 1 cuts the magnetic field to generate an induced electromotive force and short-circuits the bridge arm of the output stage to form a current. Since the current in the inductor cannot change suddenly, the cut-off current loop will inevitably generate an induced high voltage to maintain the current path. This induced high voltage For the braking back EMF, the energy storage battery 4 is charged through the braking back EMF energy.

Or the generating device is a generator 3, the motor shaft of the drive motor 1 is connected to the generator 3, the drive motor 1 drives the generator 3 to rotate and generate electricity, and the generator 3 charges the energy storage battery 4, specifically, the drive motor 1 is a double-shaft extension motor , one end of the motor shaft of the driving motor 1 drives the pulsator 10 or the drum to rotate through the synchronous belt, wherein the pulsator 10 and the drum are both driven by the drive motor. Due to the different types of washing machines, the driven parts can be used as corresponding There is no limit to the conversion of the motor shaft. The other end of the motor shaft is connected to the main shaft of the generator 3 through a flexible coupling. When the drive motor 1 is working normally or decelerating and braking, the generator converts mechanical energy into electrical energy through the principle of electromagnetic conversion. .

In order to improve the power supply stability of the energy storage battery 4, two charging methods can be used simultaneously in this embodiment, that is, the power generation device includes a braking system 2 and a generator 3, and both the braking system 2 and the generator 3 charge the energy storage battery 4. To ensure the stability of power supply, of course, the two charging methods can also be used independently.

The driving motor 1 in this embodiment is powered by the main power supply 8 of the washing machine, and the energy storage battery 4 supplies power to the drain pump 5, the weak current control system 6 or the drain valve 7, and the power supply of the drain pump 5, the weak current control system 6 or the drain valve 7 mainly comes from The washing machine's own power generation system uses a small amount of external grid power.

In order to protect the energy storage battery 4 from undervoltage and at the same time ensure that the drainage pump 5, the weak current control system 6 or the drainage valve 7 can operate normally, the energy storage battery 4 is connected to the circuit of the main power supply 8 of the washing machine, and the circuit of the main power supply 8 of the washing machine The conduction switch control unit 9 is connected in series, and the conduction switch control unit 9 controls the main power supply 8 of the washing machine to charge the energy storage battery 4 when the electric quantity of the energy storage battery 4 is lower than the rated electric quantity.

It should be understood that the specific embodiments described above are only used to explain the present utility model, and are not intended to limit the present utility model. Obvious changes or changes derived from the spirit of the utility model are still within the protection scope of the utility model.

Claims (7)

1. A washing machine power generation system, characterized in that: it comprises a drive motor (1), a power generating device and an energy storage battery (4), the drive motor (1) drives the power generating device to generate electricity, and the power generating device provides power to the The energy storage battery (4) is charged. 2. The washing machine power generation system according to claim 1, characterized in that: the power generation device is a brake system (2), the brake system (2) is installed on the drive motor (1), and the drive motor (1) When decelerating or braking, the braking system (2) charges the energy storage battery (4). 3. The power generation system of the washing machine according to claim 2, characterized in that: the braking system (2) is an EABS electronic braking system. 4. The washing machine power generation system according to claim 1, characterized in that: the power generating device is a generator, the motor shaft of the drive motor (1) is connected to the generator (3), and the drive motor (1) ) drives the generator (3) to rotate and generate electricity, and the generator (3) charges the energy storage battery (4). 5. The washing machine power generation system according to claim 4, characterized in that: the driving motor (1) is a double-shaft extension motor, and one end of the motor shaft of the driving motor (1) drives the pulsator (10) or the drum Rotate, the other end of the motor shaft is connected with the main shaft of the generator (3) through a flexible coupling. 6. The washing machine power generation system according to claim 1, characterized in that: the driving motor (1) is powered by the main power supply (8) of the washing machine, and the energy storage battery (4) feeds and drains the pump (5) or the drain valve (7) and/or the weak current control system (6) supplies power. 7. The washing machine power generation system according to claim 6, characterized in that: the energy storage battery (4) is connected to the circuit of the main power supply (8) of the washing machine, and the circuit of the main power supply (8) of the washing machine is connected in series to conduct A switch control unit (9), when the electric quantity of the energy storage battery (4) is lower than the rated electric quantity, the conduction switch control unit (9) controls the main power supply (8) of the washing machine to the energy storage battery (4) Charge.