CN201654121U - An automatic measuring device for the practical cooling power of a refrigerator - Google Patents
An automatic measuring device for the practical cooling power of a refrigerator Download PDFInfo
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- CN201654121U CN201654121U CN2009202920991U CN200920292099U CN201654121U CN 201654121 U CN201654121 U CN 201654121U CN 2009202920991 U CN2009202920991 U CN 2009202920991U CN 200920292099 U CN200920292099 U CN 200920292099U CN 201654121 U CN201654121 U CN 201654121U
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- 238000001816 cooling Methods 0.000 title abstract description 3
- 238000005259 measurement Methods 0.000 claims abstract description 16
- 238000005057 refrigeration Methods 0.000 abstract description 11
- 238000000034 method Methods 0.000 abstract description 10
- 238000011084 recovery Methods 0.000 abstract 1
- 238000012360 testing method Methods 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000033228 biological regulation Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000012372 quality testing Methods 0.000 description 1
- 238000012958 reprocessing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
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Abstract
一种冰箱实用制冷功率的自动化测量装置，结构上，在冰箱(1)内冷室(3)中使用的内部装置(5)包括：设置在冰箱(1)内冷室(3)中的电加热器(5a)与风扇(5b)，其特征在于：再在上述内部装置(5)中设置了由单片机(5m)控制的电加热器(5a)与风扇(5b)的电功率消耗量的测量装置。其使用方法如下：I.首先在内部装置(5)上设定上述冷室(3)中的最终制冷平衡温度；II.接通上述内部装置(5)的电源并关闭冷室(3)的箱门；III.当上述冷室(3)内部温度处于平衡状态时，即可抄录外部装置(6)上显示的冰箱实用制冷功率Q。在上述自动测量冰箱(1)的实用制冷功率之后，还能够测试该冰箱(1)中冷室(3)的负载温度回升时间。
An automatic measuring device for the practical refrigeration power of a refrigerator. Structurally, the internal device (5) used in the inner cold room (3) of the refrigerator (1) includes: The heater (5a) and the fan (5b) are characterized in that: the electric heater (5a) and the fan (5b) controlled by the single chip microcomputer (5m) are provided with the measurement of the electric power consumption in the above-mentioned internal device (5) device. Its method of use is as follows: I. first set the final refrigeration equilibrium temperature in the above-mentioned cold room (3) on the internal device (5); II. connect the power supply of the above-mentioned internal device (5) and close the power of the cold room (3) Chamber door; III. When the internal temperature of the above-mentioned cold room (3) is in a balanced state, the practical refrigeration power Q of the refrigerator displayed on the external device (6) can be copied. After the above-mentioned automatic measurement of the practical cooling power of the refrigerator (1), the recovery time of the load temperature of the cold room (3) in the refrigerator (1) can also be tested.
Description
Technical field:
The present invention relates to a kind of automatic measurement mechanism of practical refrigerating power of refrigerator.
Background technology:
Along with the continuous enhancing of social awareness of saving energy, people are concerned about day by day to the efficient of household electrical appliance.But refrigeration plants such as the refrigerator of Chu Shouing, household refrigerator-freezer in the market, only mark useful volume and power consumption on the nameplate, the practical refrigerating power that the user is concerned about the most (overall refrigerating effect deducts the cold of locating to scatter and disappear by cabinet insulation layer and casing crack between a door and its frame etc. in the unit interval) does not but mark.
In fact, manufacturer only carries out the measurement of refrigeration work consumption in the research and development of products process, for the product of putting on market, reason owing to measuring method and measurement mechanism, can not directly carry out refrigeration work consumption measures, can only carry out associated cooling rate, refrigerating capacity and refrigerating capacity etc. are the test of project indirectly, and the refrigerating efficiency of refrigerator (practical refrigerating power/power consumption) also just can't obtain.The national standard of existing refrigerator quality testing (GB/T 7725-2004) also can only reflect the refrigerating efficiency of refrigerator on the macroscopic view roughly indirectly.
Equally, in the external relevant standard of refrigerator, also failed call identifies practical refrigerating power on the product nameplate, but this is not that these indexs are inessential, is because do not have practicable measuring method and measurement means.Therefore, research practical refrigerating power of refrigerator automatic measurement mechanism for promoting China's refrigerator Performance Detection level, improves the efficient of refrigerator and promotes the development of industry to have very important significance.
ZL02154661.4 discloses a kind of device and using method thereof of testing refrigerator practical system cold.
Summary of the invention:
The present invention's purpose: propose a kind of improvement, make the measurement mechanism of practical refrigerating power of refrigerator realize robotization to above-mentioned patent (ZL02154661.4) technology.
To achieve these goals, intend adopting following technical scheme:
Invention structurally comprises at least: the inner interior arrangement that uses comprises in the cold house of refrigerator: be arranged on the indoor electric heater of refrigerator and cooled, fan and temperature sensor; The outside external device (ED) that uses comprises in the cold house of refrigerator: the power consumption display device;
It is characterized in that:
In above-mentioned interior arrangement, be provided with measurement mechanism again by the electric power consumption amount of monolithic processor controlled electric heater and fan.
Using method of the present invention, the step of promptly measuring practical refrigerating power of refrigerator Q automatically is as follows:
I. at first on interior arrangement, set the final refrigeration equilibrium temperature in the above-mentioned cold house;
II. the chamber door of connecting the power supply of above-mentioned interior arrangement and closing the cold house;
III. when above-mentioned cold house internal temperature is in equilibrium state, can make a copy of the practical refrigerating power of refrigerator Q that shows on the external device (ED).
The load temperature rise time method of the test refrigerator cold house after the invention described above using method is as follows:
IV. cut off the power supply of refrigerator (1), allow electric heater (5a) and fan (5b) quit work;
V. the time t that record cold house (3) is consumed when temperature is elevated to rated temperature is load temperature and gos up the time.
The present invention's characteristics compared with the prior art:
Because the present invention has increased the device by the electric power consumption amount of monolithic processor controlled well heater and fan in the practical refrigerating power measurement mechanism, this has created condition with regard to for realization refrigerator practical system cold being carried out automatic measurement (its step sees the content in above-mentioned I, II, the III for details), and the load temperature that can also measure refrigerator simultaneously after testing practical refrigerating power of refrigerator automatically gos up the time.
Description of drawings:
Fig. 1 has illustrated to realize basic structure of the present invention.
Fig. 2 has illustrated the interior arrangement appliance circuit module relation diagram in the electric control principle of the present invention.
Fig. 3 has illustrated the external device (ED) circuit appliance module relation diagram in the electric control principle of the present invention.
1: refrigerator; 2: the interior arrangement support; 3: the cold house; 4: the interior arrangement power lead; 5: interior arrangement; 5a: electric heater; 5b: fan; 5c: interior arrangement temperature sensor; 5d: interior arrangement temperature sensor signal line; 6: external device (ED); 6a: external device (ED) support; 7: the external device (ED) power lead; 8: external device (ED); 8a: external device (ED) temperature sensor; 8b: external device (ED) temperature sensor signal line; 5e: fan power power amplifier; 5f: electric heater capacity is placed on device; 5g: electric parameter modular converter; 5h: electric heater coil voltage sensor; 5i: electric heater coil current sensor; 5j: fan loop voltage sensor; 5k: fan loop current sensor; 5l: wireless signal transceiver module; 5m: single-chip microcomputer; 12: power module; 12a: level switch module; 12b: lead; 11c: lead; 13: functional module; The 8d:USB chip for driving; 8e: network control chip; 8f: serial ports; The 8g:USB interface; 8h: network interface; 8i: keyboard; 8j: display; 8l: driver module; 8m: radio receiving transmitting module; 8n: single-chip microcomputer; 13: power module; 13a: level switch module.
Embodiment
Below in conjunction with accompanying drawing technical scheme of the present invention is described further.
By shown in Figure 1, tested refrigerator 1 is placed in the testing environment (standard temperature is 21 ℃, and non-standard temperature is 32 ℃) of regulation, and interior arrangement 5 is placed in the refrigerator 1 interior cold house 3 by the support 2 of interior arrangement 5.According to thermometric needs digital temperature sensor 5c is placed to 3 interior appropriate locations, cold house in the refrigerator 1, and is connected to interior arrangement 5 by the temperature sensor signal line 5d of interior arrangement 5.Interior arrangement 5 is connected to the operate outside power supply by power lead 4.External device (ED) 6 is placed to the appropriate location by external device (ED) support 6a, the power lead 7 of external device (ED) 6 is connected to working power, according to thermometric needs external device (ED) 6 temperature sensor 8a are placed in the appropriate location of refrigerator 1 place measurement environment, and are connected on the external device (ED) 6 by external device (ED) 6 temperature sensor signal line 8b.
By shown in Figure 2, interior arrangement appliance circuit module relation diagram.Interior arrangement 5 mainly is made of power module 12 and functional module 13.Start interior arrangement 5 by external device (ED) 8, set the cryogenic temperature of refrigerator 1, cold house 3 begins refrigeration.Interior arrangement temperature sensor 5c measures the temperature in the cold house 3, and sends single-chip microcomputer 5m to, and single-chip microcomputer 5m sends to external device (ED) 6 with temperature and the Measuring Time of measuring by wireless signal transceiver module 5l.It is refrigerating speed that refrigeration begins the time that 3 interior temperature stabilizations are experienced to the cold house, and the temperature of this moment is actual cryogenic temperature.After this, single-chip microcomputer 5m heats cold house 3 by electric heater capacity amplifier 5f control electric heater 5a, to offset the refrigerating capacity that cold house 3 produces.Simultaneously, single-chip microcomputer 5m promotes air flow in the cold house 3 by fan power power amplifier 5e control fan 5b running, makes uniformity of temperature profile.Electric heater coil current sensor 5i and fan loop current sensor 5k measure the coil current by electric heater 5a and fan 5b respectively; Electric heater coil voltage sensor 5h and fan loop voltage sensor 5j measure the coil voltage of electric heater 5a and fan 5b respectively.Send into single-chip microcomputer 5m behind the measured value process electric parameter modular converter 5g of current sensor 5i and 5k.Send into single-chip microcomputer 5m behind the measured value process electric parameter modular converter 5g of voltage sensor 5h and 5j.The temperature value that single-chip microcomputer 5m records according to digital temperature sensor 5c is by the coil current of electric heater capacity amplifier 5f and fan power amplifier 5e control electric heater 5a and fan 5b.When the heating power sum of the power that heats power, fan 5b of electric heater 5a and other components and parts of interior arrangement during less than the practical refrigerating power of refrigerator 1 under design temperature, the temperature of cold house 3 can maintain actual cryogenic temperature.When the heating power sum of the power that heats power, fan 5b of electric heater 5a and other components and parts of interior arrangement equaled the practical refrigerating power of refrigerator 1 under design temperature, the power that heats power, fan 5b of electric heater 5a and the heating power sum of other components and parts of interior arrangement were the practical refrigerating power of refrigerator.After this, the power that heats power or fan 5b of increase electric heater 5a can make the temperature of cold house 3 begin to raise.The electric current of single-chip microcomputer 5m control electric heater 5a and fan 5b uses the shortest time to measure the practical refrigerating power of refrigerator 1 automatically.Level switch module 12a in the power module 12 will become two kinds of operating voltage by the operate outside power source conversion that power lead 4 inserts, needed operating voltage of digital circuit and power amplifier 5f and the needed voltage of power amplifier 5e insert in the corresponding circuit by lead 11c and lead 12b respectively.
By shown in Figure 3, external device (ED) 6 mainly contains two parts and forms power module 13 and display control module 14.Level switch module 13a becomes display control module 14 needed operating voltage with the operate outside power source conversion that power lead 7 inserts.The environment temperature that external device (ED) temperature sensor 8a measures is sent into single-chip microcomputer 8n.Radio receiving transmitting module 8m realizes exchanges data and the command transfer between interior arrangement 5 and the external device (ED) 6.External device (ED) 6 can pass through three kinds of same external computer of mode: first kind of mode is by serial ports level transferring chip 8c and serial ports 8f; The second way is by USB chip for driving 8d and USB interface 8g; The third mode is by network control chip 8e and network interface 8h.By the input of ordering between Keyboard Control module 8k realization keyboard 8i and the single-chip microcomputer 8n.Realize the shown content of single-chip microcomputer 8n control display 8j by driver module 8l.In the course of the work, display 8j shows Measuring Time, 3 temperature in the cold house, environment temperature, actual cryogenic temperature and practical refrigerating power.
If the power of electric heater 5a is Q
1, the power of fan 5b is Q
2, the heating power of interior arrangement 5 other components and parts is Q
3(Q
3Can obtain by experiment), work as Q
1, Q
2, Q
3And equal the 3 practical refrigerating power Q of cold house, promptly
Q＝Q
1+Q
2+Q
3
Wherein, Q
1=U
1I
1, Q
2=U
2I
2
U
1Be the coil voltage of electric heater 8a, I
1Be the coil current of electric heater 8a, U
2Be the coil voltage of fan 8b, I
2Coil current for fan 8b.
After the practical refrigerating power of refrigerator measurement finishes, if find that the practical refrigerating power of refrigerator data can not be up to standard, this heat-insulating property and/or refrigeration performance with regard to the meaning refrigerator has problem, at this moment the load temperature of refrigerator 1 cold house 3 that just can measure with the temperature sensor 5c of interior arrangement 5 gos up the time, whether have problems with the data declaration heat-insulating property, as the foundation of reprocessing.
If the load temperature rise time is long partially, say that then the heat-insulating property of refrigerator is no problem, problem goes out on the refrigerator refrigeration performance.If the load temperature rise time is short partially, heat-insulating property of this explanation refrigerator has problem.
Load in above-mentioned measured load temperature rise time of the present invention is an air, it can with place the load temperature rise time that " M " experiment bag measured in the cold house 3 of refrigerator 1 according to the GB regulation and set up equivalent relation.
Claims (1)
1. the automatic measurement mechanism of a practical refrigerating power of refrigerator,
The inner interior arrangement (5) that uses comprising in the cold house of refrigerator (1): be arranged on the electric heater (5a) in cold house (3) in the refrigerator (1), fan (5b) and temperature sensor (5c);
The outside external device (ED) (6) that uses comprising in the cold house (3) of refrigerator (1): the power consumption display device;
It is characterized in that:
In above-mentioned interior arrangement (5), be provided with again by the electric heater (5a) of single-chip microcomputer (5m) control and the measurement mechanism of the electric power consumption amount of fan (5b).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202920991U CN201654121U (en) | 2009-12-18 | 2009-12-18 | An automatic measuring device for the practical cooling power of a refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202920991U CN201654121U (en) | 2009-12-18 | 2009-12-18 | An automatic measuring device for the practical cooling power of a refrigerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201654121U true CN201654121U (en) | 2010-11-24 |
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ID=43119366
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202920991U Expired - Fee Related CN201654121U (en) | 2009-12-18 | 2009-12-18 | An automatic measuring device for the practical cooling power of a refrigerator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201654121U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109470916A (en) * | 2017-09-07 | 2019-03-15 | 南方电网科学研究院有限责任公司 | A device and method for measuring power loss of an inverter |
-
2009
- 2009-12-18 CN CN2009202920991U patent/CN201654121U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109470916A (en) * | 2017-09-07 | 2019-03-15 | 南方电网科学研究院有限责任公司 | A device and method for measuring power loss of an inverter |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101124 Termination date: 20111218 |