INTELLIGENT AIR CONDITIONER SOCKET WITH ABNORMALITY ALARM

• US 20160123623A1
• Filed: 02/03/2015
• Published: 05/05/2016
• Est. Priority Date: 10/29/2014
• Status: Active Grant

• Current Assignee: Staba Electric Company Limited
• Original Assignee: Staba Electric Company Limited
• Inventors: Deng, Yuhua
• Granted Patent: US 9,845,967 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: F24F 11/30 for purposes related to the operation of the system, e.g. for safety or monitoring
• CPC Class Codes: F24F 11/32 Responding to malfunctions or emergencies
• CPC Class Codes: F24F 11/47 Responding to energy costs
• CPC Class Codes: F24F 11/52 Indication arrangements, e.g. displays
• CPC Class Codes: F24F 11/523 for displaying temperature data
• CPC Class Codes: F24F 11/64 using pre-stored data
• CPC Class Codes: F24F 2110/10 Temperature
• CPC Class Codes: F24F 2110/12 of the outside air

Abstract

An intelligent with abnormality alarm which may comprise a housing, jacks in the surface of the housing and a conductive component arranged within the housing, wherein the housing is internally provided with a single chip processor as well as a current detection module, a voltage detection module, an outdoor temperature detection module, an indoor temperature detection module, a display module and a power supply module which are electrically connected with the single chip processor respectively. The power supply module is connected with the display module to power it. The socket may be used to carry out a real-time monitoring without making modification to the software and hardware. After applying the air conditioner socket of the present invention, the user may replace the socket of the air conditioner of a corresponding model him or her, i.e., the monitoring of an installed air conditioner may be accomplished with a minimum cost.

Claims

1. An intelligent air conditioner socket with abnormality alarm comprising a housing, jacks on the surface of the housing and a conductive component arranged within the housing, characterized in that:

arranged within the housing is a single chip processor as well as a current detection module, a voltage detection module, an outdoor temperature detection module, an indoor temperature detection module, a display module and a power supply module which are electrically connected with the single chip processor respectively, wherein the power supply module is connected with the display module to power it;

the current detection module and the voltage detection module are used for detecting a sampled current and a sampled voltage output to the air conditioner after the power network is connected to the socket respectively, wherein the sampled current and the sampled voltage are fed back to the single-chip processor respectively through an operational amplifier circuit;

the outdoor temperature detection module and the indoor temperature detection module are used for detecting outdoor and indoor temperature signals and feeding the signals back to the single-chip processor;

as a control and processing core, the single-chip processor conducts voltage abnormality detection, current abnormality detection and temperature abnormality detection respectively using the feedback signals;

wherein the voltage abnormality detection comprises comparing a difference between the sampled voltage and a rated voltage with a preset normal voltage difference, if the difference exceeds the preset normal voltage difference, an input voltage of the air conditioner is determined to be overvoltage or undervoltage, and a voltage abnormality alarm signal will be output;

the current abnormality detection comprises comparing a difference between the sampled current and a rated current with a preset normal current difference, if the current difference exceeds the preset normal current difference, an input current of the air conditioners determined to be overcurrent or undercurrent, and a current abnormality alarm signal will be output;

the temperature abnormality detection comprising determining whether a predetermined temperature reduction magnitude is within the range of an actual temperature reduction magnitude*(−

120%, +120%) within a time period T∈

T₀−

Tm, and if not, an abnormality alarm signal will be output;

wherein the actual temperature reduction magnitude=F(Tm)−

F(T₀), F(T₀) is an initial indoor temperature, and F(Tm) is the indoor temperature at Tm; and

the predetermined temperature reduction magnitude=Σ

T₀˜

Tm [voltage T(v)*current T(a)]*nominal energy efficiency ratio (B)/nominal space area (A)*coefficient of performance R(T)*nominal power factor C, wherein the voltage T(v) and the current T(a) are the sampled voltage and sampled current detected at time T respectively, and the coefficient of performance R(T) is the corresponding coefficient of performance of the outdoor temperature and the indoor temperature at time T; and

the display module is used for displaying the current temperature, power and abnormality alarm prompts output by the single-chip processor.

2. An intelligent air conditioner socket with abnormality alarm according to claim 1, characterized in that:

the single-chip processor prestores a table of values of coefficient of performance at different outdoor temperatures and indoor temperatures directly or indirectly, and reads the value of the coefficient of performance R(T) corresponding to the outdoor temperature and the indoor temperature at time T form the table.

3. An intelligent air conditioner socket with abnormality alarm according to claim 1, characterized in that:

the power supply module is a switching power supply which comprises a rectifier IC, a transformer and an isolation optocoupler.

4. An intelligent air conditioner socket with abnormality alarm according to claim 1, characterized in that:

the current detection module uses constantan wire as a current detection device.

5. An intelligent air conditioner socket with abnormality alarm according to claim 1, characterized in that:

the display module comprises a display IC and a digital display screen.

6. An intelligent air conditioner socket with abnormality alarm according to claim 1, characterized in that:

the outdoor temperature detection module and the indoor temperature detection module use an external thermistor as a temperature sensor to detect the outdoor and indoor temperatures, respectively.