CN202929080U - Refrigerator power consumption metering device - Google Patents
Refrigerator power consumption metering device Download PDFInfo
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- CN202929080U CN202929080U CN 201220605858 CN201220605858U CN202929080U CN 202929080 U CN202929080 U CN 202929080U CN 201220605858 CN201220605858 CN 201220605858 CN 201220605858 U CN201220605858 U CN 201220605858U CN 202929080 U CN202929080 U CN 202929080U
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Abstract
The utility model relates to a refrigerator power consumption metering device, comprising a microprocessing unit, a sampling circuit, a display element, an E2PROM memory unit, a serial port communication unit and a power supply unit for providing a work voltage for the refrigerator power consumption metering device. The display element and the E2PROM memory unit are respectively connected with the microprocessing unit; the input terminal of the sampling circuit is connected with the power supply input terminal of the refrigerator; the output terminal of the sampling circuit is connected with the microprocessing unit; the microprocessing unit is connected with the serial port communication unit through an optical coupler isolation circuit; the serial port communication unit is then connected with the master control unit of the refrigerator; and the power supply unit comprises a switch power supply and a voltage stabilization chip. The refrigerator power consumption metering device is arranged in the refrigerator in an embedding manner, socket cost is saved, and no space is occupied out of the refrigerator. Metering parameters are abundant, functions are various, usage is flexible, the refrigerator power consumption metering device can be communicated with the master control unit of the refrigerator, and the security degree of the power supply unit is high.
Description
Technical field
The utility model relates to a kind of electrical equipment power consumption metering outfit, relates in particular to a kind of refrigerator power consumption measuring apparatus.
Background technology
At present, in order to understand electric energy that electrical equipment consumes, need to join specially an electric energy reading socket, the attaching plug of electrical equipment is inserted on electric energy reading socket, electrical equipment is by the electric energy reading socket power taking, and the display screen on electric energy reading socket can demonstrate electric energy that electrical equipment consumes.Because electric energy reading socket is all external, not only increased the cost of socket but also taken certain volume.On the other hand, electric energy reading socket generally all adopts common computation chip, and function is fixed, program Solidification is at chip internal, and the user can't change chip functions as required, uses underaction, and common computation chip has increased the difficulty of secondary development only for the pulse of output active energy.In addition, the power supply unit of electric energy reading socket generally all adopts the mode of resistance-capacitance depressurization to realize at present, and there is insecurity in non-insulating power supply, can not be used for high power load, is not suitable for capacitive and inductive load, also is not suitable for dynamic load.
Summary of the invention
The utility model mainly solves original electric energy reading socket common computation chip used and only is used for the pulse of output active energy, and function is fixed, and uses underaction and external socket not only to increase cost but also takies the technical matters of volume; A kind of refrigerator power consumption measuring apparatus is provided, and it adopts the chip microcontroller function of measuring, and measuring parameter is abundant, and diverse in function is used flexibly, embeds and is arranged on refrigerator inside, saves the socket cost, no longer takies volume outside refrigerator.
The utility model solves simultaneously original electric energy reading socket power supply unit used and has insecurity, can not be used for high power load, is not suitable for the technical matters of capacitive and inductive load and dynamic load; A kind of refrigerator power consumption measuring apparatus is provided, and its power supply unit used is safe, is applicable to high power load, capacitive and inductive load and dynamic load.
Above-mentioned technical matters of the present utility model is mainly solved by following technical proposals: the utility model comprises microprocessing unit, sample circuit, display unit and the power supply unit of operating voltage is provided for refrigerator power consumption measuring apparatus, display unit is connected with microprocessing unit, the input end of sample circuit is connected with the power input of refrigerator, and the output terminal of sample circuit is connected with described microprocessing unit.The voltage and current of sample circuit Real-time Collection refrigerator, and flow to microprocessing unit, carrying out computing and processing by microprocessing unit, the various electrical quantitys of acquisition send display unit to show again.Adopt microprocessing unit that refrigerator institute power consumption is measured, the electrical quantitys such as measuring voltage, electric current, frequency, power (comprising active power and reactive power) and power factor, can carry out flexible design according to demand simultaneously.The utility model measuring parameter is abundant, and diverse in function is used flexibly.The utility model embeds and is arranged on refrigerator inside, saves the socket cost, no longer takies volume outside refrigerator, uses convenient.
As preferably, described refrigerator power consumption measuring apparatus comprises the E2PROM storage unit, and the E2PROM storage unit is connected with described microprocessing unit.The E2PROM storage unit directly is connected with microprocessing unit, and microprocessing unit is realized data storage and read functions by I/O mouth Simulation with I 2C bus.The E2PROM storage unit guarantees that the significant data after power down is effectively preserved, and uses the mode of circulation to preserve, and really realizes the permanent preservation of data.
As preferably, described refrigerator power consumption measuring apparatus comprises the serial communication unit, and described microprocessing unit is connected with the serial communication unit through optical coupling isolation circuit, and the serial communication unit is connected with the refrigerator main control unit again.Realize communicating by letter of microprocessing unit and refrigerator main control unit by the serial communication unit, realize isolated communication by optical coupling isolation circuit, guaranteed the isolation fully of circuit, improve security.
As preferably, described refrigerator power consumption measuring apparatus comprises power panel and metering plate, described power supply unit is located on power panel, power supply unit comprises Switching Power Supply and voltage stabilizing chip, the input end of Switching Power Supply is connected with civil power, the output terminal of Switching Power Supply is connected with the input end of voltage stabilizing chip, and the output terminal of voltage stabilizing chip is connected with described metering plate, and described microprocessing unit, sample circuit, display unit, E2PROM storage unit and serial communication unit are located on described metering plate.Power supply unit is from the direct power taking of electrical network, and through Switching Power Supply output 12V, then through the voltage stabilizing chip, the 5V of stable output powers and uses to metering plate.Power supply unit is safe, is applicable to high power load.
As preferably, described microprocessing unit adopts the MSP430AFE253 single-chip microcomputer.The performance of MSP430AFE253 single-chip microcomputer, technical indicator meet the single-phase measurement technical requirement fully, can gather simultaneously electric current and voltage signal, the electrical quantitys such as measuring voltage, electric current, frequency, power (comprising meritorious, idle and applied power) and power factor, can carry out flexible design according to user's request simultaneously.The inside of MSP430AFE253 single-chip microcomputer is integrated module front end need not outside computation chip, just can realize function of measuring.The structure of MSP430AFE253 single-chip microcomputer is suitable as electric energy computation chip very much, and its inside has comprised a lot of hardware resources, thereby greatly reduces the cost of metering section.Electrical energy pulse is directly exported from the MSP430AFE253 single-chip microcomputer, is used for electric energy error correction and check and correction.
The beneficial effects of the utility model are: embed and be arranged on refrigerator inside, save the socket cost, no longer take volume outside refrigerator.Measuring parameter is abundant, and diverse in function is used flexibly, can communicate with the refrigerator main control unit.Power supply unit is safe, is applicable to high power load, capacitive and inductive load and dynamic load.
Description of drawings
Fig. 1 is a kind of circuit theory syndeton block diagram of the present utility model.
1. microprocessing units in figure, 2. sample circuit, 3. display unit, 4. power supply unit, 5.E2PROM storage unit, 6. serial communication unit, 7. optical coupling isolation circuit, 8. refrigerator main control unit, the 9. power input of refrigerator, 10. power panel, 11. metering plates, 41. Switching Power Supplies, 42. voltage stabilizing chips.
Embodiment
Below by embodiment, and by reference to the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment: the refrigerator power consumption measuring apparatus of the present embodiment as shown in Figure 1, comprises power panel 10 and metering plate 11.microprocessing unit 1 is installed on metering plate 11, sample circuit 2, display unit 3, E2PROM storage unit 5 and serial communication unit 6, the input end of sample circuit 2 is connected with the power input of refrigerator 9, the output terminal of sample circuit 2 is connected with microprocessing unit 1, serial communication unit 6 is connected with refrigerator main control unit 8, serial communication unit 6 is connected with microprocessing unit through optical coupling isolation circuit 7, display unit 3, E2PROM storage unit 5 is connected with microprocessing unit 7 respectively, the E2PROM storage unit directly is connected with microprocessing unit, microprocessing unit is by I/O mouth Simulation with I 2C bus, realize data storage and read functions.Power supply unit 4 is installed on power panel 10, power supply unit 4 comprises Switching Power Supply 41 and voltage stabilizing chip 42, the input end of Switching Power Supply 41 is connected with civil power, the output terminal of Switching Power Supply 41 is connected with the input end of voltage stabilizing chip 42, and the output terminal of voltage stabilizing chip 42 is connected with metering plate 11, and power supply unit is from the direct power taking of electrical network, through Switching Power Supply output 12V, through the voltage stabilizing chip, the 5V of stable output powers and uses to metering plate again.In the present embodiment, microprocessing unit 1 adopts the MSP430AFE253 single-chip microcomputer.
The voltage and current of sample circuit Real-time Collection refrigerator, and flow to microprocessing unit, carrying out computing and processing by microprocessing unit, the various electrical quantitys of acquisition send display unit to show again.The E2PROM storage unit guarantees that the significant data after power down is effectively preserved, and uses the mode of circulation to preserve, and really realizes the permanent preservation of data, by communicating by letter of serial communication unit realization and refrigerator main control unit.The utility model embeds and is arranged on refrigerator inside, saves the socket cost, no longer takies volume outside refrigerator.Adopt the MSP430AFE253 single-chip microcomputer that refrigerator institute power consumption is measured, the electrical quantitys such as measuring voltage, electric current, frequency, power (comprising active power and reactive power) and power factor, can carry out flexible design according to demand simultaneously, and measuring parameter is abundant, diverse in function is used flexibly.
Claims (5)
1. refrigerator power consumption measuring apparatus, the power supply unit (4) that it is characterized in that comprising microprocessing unit (1), sample circuit (2), display unit (3) and operating voltage is provided for refrigerator power consumption measuring apparatus, display unit (3) is connected with microprocessing unit (1), the power input (9) of the input end of sample circuit (2) and refrigerator is connected, and the output terminal of sample circuit (2) is connected with described microprocessing unit (1).
2. refrigerator power consumption measuring apparatus according to claim 1, is characterized in that comprising E2PROM storage unit (5), and E2PROM storage unit (5) is connected with described microprocessing unit (1).
3. refrigerator power consumption measuring apparatus according to claim 1 and 2, it is characterized in that comprising serial communication unit (6), described microprocessing unit (1) is connected with serial communication unit (6) through optical coupling isolation circuit (7), and serial communication unit (6) is connected with refrigerator main control unit (8) again.
4. refrigerator power consumption measuring apparatus according to claim 4, it is characterized in that comprising power panel (10) and metering plate (11), described power supply unit (4) is located on power panel (10), power supply unit (4) comprises Switching Power Supply (41) and voltage stabilizing chip (42), the input end of Switching Power Supply (41) is connected with civil power, the output terminal of Switching Power Supply (41) is connected with the input end of voltage stabilizing chip (42), the output terminal of voltage stabilizing chip (42) is connected with described metering plate (11), described microprocessing unit (1), sample circuit (2), display unit (3), E2PROM storage unit (5) and serial communication unit (6) are located on described metering plate (11).
5. refrigerator power consumption measuring apparatus according to claim 1 and 2, is characterized in that described microprocessing unit (1) adopts the MSP430AFE253 single-chip microcomputer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220605858 CN202929080U (en) | 2012-11-16 | 2012-11-16 | Refrigerator power consumption metering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220605858 CN202929080U (en) | 2012-11-16 | 2012-11-16 | Refrigerator power consumption metering device |
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| Publication Number | Publication Date |
|---|---|
| CN202929080U true CN202929080U (en) | 2013-05-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220605858 Expired - Lifetime CN202929080U (en) | 2012-11-16 | 2012-11-16 | Refrigerator power consumption metering device |
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| CN (1) | CN202929080U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103257267A (en) * | 2013-05-20 | 2013-08-21 | 安徽中家智锐科技有限公司 | Built-in electric energy collection module of household appliance |
| CN105068040A (en) * | 2015-09-11 | 2015-11-18 | 珠海格力电器股份有限公司 | Electric energy metering device and household appliance using same |
| CN112946559A (en) * | 2021-02-01 | 2021-06-11 | 宁夏隆基宁光仪表股份有限公司 | Smart electric meter detection method based on power detection |
-
2012
- 2012-11-16 CN CN 201220605858 patent/CN202929080U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103257267A (en) * | 2013-05-20 | 2013-08-21 | 安徽中家智锐科技有限公司 | Built-in electric energy collection module of household appliance |
| CN103257267B (en) * | 2013-05-20 | 2015-08-26 | 中国家用电器研究院 | Built-in electric energy collection module of household appliance |
| CN105068040A (en) * | 2015-09-11 | 2015-11-18 | 珠海格力电器股份有限公司 | Electric energy metering device and household appliance using same |
| CN105068040B (en) * | 2015-09-11 | 2018-11-13 | 珠海格力电器股份有限公司 | Electric energy metering device and household appliance using same |
| CN112946559A (en) * | 2021-02-01 | 2021-06-11 | 宁夏隆基宁光仪表股份有限公司 | Smart electric meter detection method based on power detection |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: LIERDA TECHNOLOGY GROUP CO., LTD. Free format text: FORMER NAME: LIERDA SCIENCE AND TECHNOLOGY CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: Hangzhou City, Zhejiang province 310011 Gongshu District Dengyun Road No. 425 building 12F Lilda Patentee after: LIERDA SCIENCE & TECHNOLOGY GROUP Co.,Ltd. Address before: Hangzhou City, Zhejiang province 310011 Gongshu District Dengyun Road No. 425 building 12F Lilda Patentee before: Lierda Technology Co.,Ltd. |
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| CX01 | Expiry of patent term |
Granted publication date: 20130508 |
|
| CX01 | Expiry of patent term |