Patent Grant
9845967
This application claims priority to Chinese Application No. 201410597463.0 filed on Oct. 29, 2014, which is incorporated by reference in its entirety.
The present invention relates to a socket, in particular to an intelligent air conditioner socket with abnormality alarm.
Generally, an air conditioner provides only external motor temperature protection prompts, room temperature display and the like, but no correct feedback information about substantive performances of the air conditioner is provided to users for communication. The users have no way of learning a series of information like whether the air conditioner is in a normal refrigeration state, and whether the use environment is proper, etc. The users just start power-on settings and use the air conditioner; while the air conditioner just operates until a compressor stops operating after a set temperature is reached. After a long time use, the users do not know whether the performance of the air conditioner degrades.
This Summary is provided to introduce a selection of concepts in a simplified form that are further described below in the Detailed Description. This Summary is not intended to identify key factors or essential features of the claimed subject matter, nor is it intended to be used to limit the scope of the claimed subject matter.
As the types of the air conditioner are limited, various parameters of a single air conditioner are unique. How to monitor the air conditioner and implement intelligent abnormality alarm with regard to the air conditioner having known parameters without changing hardware and software settings is a problem to be solved by the present invention. When the air conditioner is in use, a socket is needed to provide access to a power supply, and the current and voltage accessed through the socket is the actual input of the air conditioner. This is where the concept of the invention comes in.
To overcome the above technical problem, an object of the invention is to provide an intelligent air conditioner socket having abnormality alarm.
A technical scheme adopted by the present invention may be described as follows.
An intelligent air conditioner socket with abnormality alarm may comprise a housing, jacks in the surface of the housing and a conductive component arranged within the housing.
Arranged within the housing may be 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 may be electrically connected with the single-chip processor respectively, wherein the power supply module may be connected with the display module to power it.
The current detection module and the voltage detection module may be used for detecting a sampled current and a sampled voltage output to the air conditioner after the power network may be connected to the socket respectively, wherein the sampled current and the sampled voltage may be fed back to the single-chip processor respectively through an operational amplifier circuit.
The outdoor temperature detection module and the indoor temperature detection module may be 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 may conduct voltage abnormality detection, current abnormality detection and temperature abnormality detection respectively using the feedback signals.
The voltage abnormality detection may comprise 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 may be determined to be overvoltage or undervoltage, and a voltage abnormality alarm signal may be output.
The current abnormality detection may comprise 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 conditioner may be determined to be overcurrent or undercurrent, and a current abnormality alarm signal may be output.
The temperature abnormality detection may comprise determining whether a predetermined temperature reduction magnitude is within the range of an actual temperature reduction magnitude*(−120%, +120%) within a time period of TεT0˜Tm, and if not, an abnormality alarm signal may 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=εT0˜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.
The display module may be used for displaying the current temperature, power and abnormality alarm prompts output by the single-chip processor.
Further, the single-chip processor may prestore a table of values of coefficient of performance at different outdoor temperatures and indoor temperatures directly or indirectly, and may read the value of the coefficient of performance R(T) corresponding to the outdoor temperature and the indoor temperature at time T from the table.
Further, the power supply module may be a switching power supply which may comprise a rectifier IC, a transformer and an isolation optocoupler.
Further, the current detection module may use constantan wire as a current detection device.
Further, the display module may include a display IC and a digital display screen.
Further, the outdoor temperature detection module and the indoor temperature detection module may use an external thermistor as a temperature sensor to detect the outdoor and indoor temperatures, respectively.
By way of nonlimiting example, beneficial effects of the present invention may be described as follows.
In the present invention, a socket for the air conditioner may be used to carry out a real-time monitoring without making modification to the software and hardware, and the cost of socket modification is much lower than the cost of modifying the air conditioner itself. 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, that is, the monitoring of an installed air conditioner may be accomplished with a minimum cost.
The socket of the present invention has a wide monitoring range, for it may have a voltage detection module for detecting whether the input is overvoltage or undervoltage, a current detection module for detecting whether the current is excessive, and a display module providing a timely prompt function, thereby effectively ensuring that the air conditioner will not be in an abnormal operating state for a long time, allowing the air conditioner to reach a nominal life.
In addition to the current and voltage detection, the temperature detection may be added, which is not just a simple indication of room temperature, but may comprehensively introduce the sampled current, the sampled voltage, the indoor temperature and the outdoor temperature into factors influencing the predetermined temperature reduction magnitude. Besides, a software algorithm may be combined with a formula for calculating the predetermined temperature reduction magnitude to obtain a true and valid predetermined temperature reduction magnitude which may then be compared to the actual temperature reduction magnitude to determine whether the air conditioner operates normally. With such a detection mode, the absolute, true and valid indoor and outdoor temperature factors may be involved in the calculation when the current detection and voltage detection are unable to monitor the operation of the air conditioner genuinely, thereby allowing possible unconventional detection faults such as refrigerating system dust, too little refrigerant, whether there being a mismatch between the use space and a nominal space, unreasonable installation of pipes to be identified.
To the accomplishment of the foregoing and related ends, the following description and annexed drawings set forth certain illustrative aspects and implementations. These are indicative of but a few of the various ways in which one or more aspects may be employed. Other aspects, advantages and novel features of the disclosure will become apparent from the following detailed description when considered in conjunction with the annexed drawings.
What is disclosed herein may take physical form in certain parts and arrangement of parts, and will be described in detail in this specification and illustrated in the accompanying drawings which form a part hereof and wherein:
The claimed subject matter is now described with reference to the drawings, wherein like reference numerals are generally used to refer to like elements throughout. In the following description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the claimed subject matter. It may be evident, however, that the claimed subject matter may be practiced without these specific details. In other instances, structures and devices may be shown in block diagram form in order to facilitate describing the claimed subject matter.
With reference to
As shown in
The current detection module 20 and the voltage detection module 30 may be 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 may be fed back to the single-chip processor 10 respectively through an operational amplifier circuit.
The outdoor temperature detection module 40 and the indoor temperature detection module 50 may be used for detecting outdoor and indoor temperature signals and feeding the signals back to the single-chip processor 10.
As a control and processing core, the single-chip processor 10 may conduct voltage abnormality detection, current abnormality detection and temperature abnormality detection respectively use the feedback signals.
The display module 60 may be used for displaying the current temperature, power and abnormality alarm prompts output by the single-chip processor 10.
By using the voltage detection module 30 to detect whether the input is overvoltage or undervoltage, using the current detection module 20 to detect whether the current is excessive, and using the display module 60 to provide a timely prompt, that the air conditioner may not be in an abnormal operating state for a long time may be effectively guaranteed, thereby allowing the air conditioner to reach a nominal life.
The current and voltage detection may be applicable to monitoring of the air conditioner operation when power network fluctuation or a fault occurs, but may not truly monitor the operation of the air conditioner for possible unconventional detection faults such as refrigerating system dust, too little refrigerant, whether there being a mismatch between the use space and a nominal space, unreasonable installation of pipes, etc.
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=ΣT0˜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. With regard to the acquisition of refrigerating parameters, the single-chip processor 10 may prestore a table of values of coefficient of performance at different outdoor temperatures and indoor temperatures directly or indirectly, and may read the value of the coefficient of performance R(T) corresponding to the outdoor temperature and the indoor temperature at time T from the table.
The purpose of introducing the outdoor temperature into calculation is that the outdoor temperature may also exert a great influence on the refrigerating capacity, as shown in the following table 1 derived experimentally and
The coefficient of performance R may decrease correspondingly with the increase of the outdoor temperature and the decrease of the indoor temperature, thus the introduction of the indoor temperature and the outdoor temperature into calculation advantageously may improve the accuracy.
As described above, in addition to the current and voltage detection, the temperature detection may be added, which is not just a simple indication of the room temperature, but comprehensively may introduce the sampled current, the sampled voltage, the indoor temperature and the outdoor temperature into factors influencing the predetermined temperature reduction magnitude. Besides, a software algorithm may be combined with a formula for calculating the predetermined temperature reduction magnitude to obtain a true and valid predetermined temperature reduction magnitude which may then be compared to the actual temperature reduction magnitude to determine whether the air conditioner operates normally.
To sum up, the socket may be used to carry out a real-time monitoring without making modification to the software and hardware, and the cost of socket modification is much lower than the cost of modifying the air conditioner itself. 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.
The word “exemplary” is used herein to mean serving as an example, instance or illustration. Any aspect or design described herein as “exemplary” is not necessarily to be construed as advantageous over other aspects or designs. Rather, use of the word exemplary is intended to present concepts in a concrete fashion. As used in this application, the term “or” is intended to mean an inclusive “or” rather than an exclusive “or.” That is, unless specified otherwise, or clear from context, “X employs A or B” is intended to mean any of the natural inclusive permutations. That is, if X employs A; X employs B; or X employs both A and B, then “X employs A or B” is satisfied under any of the foregoing instances. Further, at least one of A and B and/or the like generally means A or B or both A and B. In addition, the articles “a” and “an” as used in this application and the appended claims may generally be construed to mean “one or more” unless specified otherwise or clear from context to be directed to a singular form.
Although the subject matter has been described in language specific to structural features and/or methodological acts, it is to be understood that the subject matter defined in the appended claims is not necessarily limited to the specific features or acts described above. Rather, the specific features and acts described above are disclosed as example forms of implementing the claims. Reference throughout this specification to “one embodiment” or “an embodiment” means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment. Thus, the appearances of the phrases “in one embodiment” or “in an embodiment” in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. Of course, those skilled in the art will recognize many modifications may be made to this configuration without departing from the scope or spirit of the claimed subject matter.
Also, although the disclosure has been shown and described with respect to one or more implementations, equivalent alterations and modifications will occur to others skilled in the art based upon a reading and understanding of this specification and the annexed drawings. The disclosure includes all such modifications and alterations and is limited only by the scope of the following claims. In particular regard to the various functions performed by the above described components (e.g., elements, resources, etc.), the terms used to describe such components are intended to correspond, unless otherwise indicated, to any component which performs the specified function of the described component (e.g., that is functionally equivalent), even though not structurally equivalent to the disclosed structure which performs the function in the herein illustrated exemplary implementations of the disclosure.
In addition, while a particular feature of the disclosure may have been disclosed with respect to only one of several implementations, such feature may be combined with one or more other features of the other implementations as may be desired and advantageous for any given or particular application. Furthermore, to the extent that the terms “includes,” “having,” “has,” “with,” or variants thereof are used in either the detailed description or the claims, such terms are intended to be inclusive in a manner similar to the term “comprising.”
| Number | Date | Country | Kind |
|---|---|---|---|
| 2014 1 0597463 | Oct 2014 | CN | national |
| Number | Name | Date | Kind |
|---|---|---|---|
| 20060271214 | Brown | Nov 2006 | A1 |
| 20120165993 | Whitehouse | Jun 2012 | A1 |
| Number | Date | Country | |
|---|---|---|---|
| 20160123623 A1 | May 2016 | US |
