Single-phase power supply unit and control method thereof

A technology of a power supply unit and a control method, which is applied to electrical components, emergency protection circuit devices, etc., can solve problems such as damage to the communication motherboard, access to the connecting line, and circuit damage, and achieve the effect of preventing circuit damage.

Active Publication Date: 2017-06-20
GREE ELECTRIC APPLIANCES INC
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0002] In the current electrical power supply unit, there are multiple interfaces at the electrical interface, including strong current interface and weak current interface. In the solution, the connection line is not connected to the corresponding interface position (including the above-mentioned strong current interface and weak current interface), so it is easy for the user to mistakenly connect the strong current (AC220V) to the weak current communication interface during installation, resulting in weak current com

Method used

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Embodiment Construction

[0021] In order to enable those skilled in the art to better understand the solutions of the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only It is an embodiment of a part of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0022] It should be noted that the terms "first" and "second" in the description and claims of the present invention and the above drawings are used to distinguish similar objects, but not necessarily used to describe a specific sequence or sequence. It is to be understood that the data so used are interchangeable under appropriate ...

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Abstract

The invention discloses a single-phase power supply unit and a control method thereof. The single-phase power supply unit comprises a main board, wherein the main board is provided with a strong-current power supply interface and a weak-current communication interface; a detection unit arranged on the main board and used for detecting whether the strong-current power supply interface in the main board is connected with a power source; and a controller arranged on the main board and used for controlling a relay to attract when the detection unit detects that the strong-current power supply interface in the main board is connected with the power source, wherein the relay is arranged on the main board, and the relay comprises the following work states: a relay attraction state and a relay disconnection state. When the relay is in the attraction state, the single-phase power supply unit works; and when the strong-current power supply interface in the main board is not connected with the power source, the relay is in the disconnection state, and the single-phase power supply unit does not work. The technical problem of circuit damage caused when the weak-current communication interface of the power supply unit is connected with a strong current is solved.

Description

technical field [0001] The invention relates to the field of electric appliance control, in particular to a single-phase power supply unit and a control method thereof. Background technique [0002] In the current electrical power supply unit, there are multiple interfaces at the electrical interface, including strong current interface and weak current interface. In the solution, the connection line is not connected to the corresponding interface position (including the above-mentioned strong current interface and weak current interface), so it is easy for the user to mistakenly connect the strong current (AC220V) to the weak current communication interface during installation, resulting in weak current communication The circuit is burned. In the existing communication weak current interface, the protection circuit of the interface can only protect the instantaneous surge, and cannot withstand the long-term strong current connection, so the communication main board of the el...

Claims

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Application Information

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IPC IPC(8): H02H11/00
CPCH02H11/00
Inventor 刘婵邹宏亮夏海石
Owner GREE ELECTRIC APPLIANCES INC
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