CN202885436U - Intelligent control circuit for direct cooling mechanical-control refrigerator - Google Patents
Intelligent control circuit for direct cooling mechanical-control refrigerator Download PDFInfo
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- CN202885436U CN202885436U CN 201220601908 CN201220601908U CN202885436U CN 202885436 U CN202885436 U CN 202885436U CN 201220601908 CN201220601908 CN 201220601908 CN 201220601908 U CN201220601908 U CN 201220601908U CN 202885436 U CN202885436 U CN 202885436U
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- refrigerator
- compressor
- frequency conversion
- control circuit
- temperature
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Abstract
The utility model discloses an intelligent control circuit for a direct cool mechanical-control refrigerator. The intelligent control circuit comprises a frequency conversion compressor, a wave filter, a frequency conversion control plate, a temperature sensor, a compensating heater, a magnetically controlled switch and a temperature controller; two terminals of the frequency conversion control plate are respectively connected with two output ends of the wave filter; the frequency conversion compressor and the temperature sensor are connected with the frequency conversion control plate; the compensating heater, the magnetically controlled switch and the temperature controller are connected with one another in series to be connected between two output ends of the wave filter; the frequency conversion control plate is used for controlling the running mode of the direct cool mechanical-control refrigerator; and the temperature controller is further connected with the frequency conversion control plate. The intelligent control circuit for the direct cool mechanical-control refrigerator provided by the utility model has the advantages that the refrigerators with different volumes are guaranteed to be matched with one compressor, the optimal match status can be always kept, the refrigerating capacity with larger thermal load of the mechanical-control direct cool refrigerator can be realized and the like within a certain volume range under various working conditions.
Description
Technical field
The utility model relates to a kind of intelligence control circuit for direct-cooled machine control refrigerator.
Background technology
Be to reduce the energy consumption of refrigerator, beyond comprehensively to the optimal design of its each parts, improved performance, improve the efficient of compressor, add the foaming layer of large refrigerator or the performance by improving expanded material is topmost decisive factor.Although improve compressor efficiency in conventional refrigerator, strengthen the refrigerator foaming layer to energy-conservation to some extent contribution, because the Homes Using TV of refrigerator diminishes its refrigerating capacity can't be done greatly.Larger chilled load can't be nothing but two kinds by the reason of refrigerating capacity test: the one, and the temperature of refrigerating chamber zero passage, the 2nd, press at the appointed time storehouse or chilled load not to reach-18 ℃.
The rotating speed of the compressor of tradition machine control direct cooling refrigerator is constant, and its output refrigerating capacity also is constant (the refrigerator volume scope that can mate is narrower), can find out obviously that from the power test curve its power is to be to reduce gradually until balance.The refrigerating capacity adaptability of whole system is poor under different operating modes like this, under the limit cycle temperature working time of its compressor relatively long, the refrigerating efficiency that not only affects refrigeration system is simultaneously to also there being adverse influence in service life of compressor.
The utility model content
The utility model is the weak point that exists in the above-mentioned prior art for avoiding, a kind of frequency-changeable compressor provides a kind of intelligence control circuit for direct-cooled machine control refrigerator, so that can be adapted to not isometric refrigerator and keep the optimum Match state to realize energy-conservation purpose.
The utility model be the technical solution problem by the following technical solutions.
Be used for the intelligence control circuit of direct-cooled machine control refrigerator, its design feature is to comprise frequency-changeable compressor, wave filter, VFC plate, temperature sensor, compensating heater, magnetic switch and temperature controller; Two terminals of described VFC plate are connected with two outputs of described wave filter respectively; Described frequency-changeable compressor all is connected with described VFC plate with temperature sensor; After being connected in series successively, described compensating heater, magnetic switch and temperature controller be connected between two outputs of wave filter; Described VFC plate is used for the running status of control frequency-changeable compressor; Described temperature controller also is connected with described VFC plate.
The design feature of the intelligence control circuit for direct-cooled machine control refrigerator of the present utility model also is:
Described intelligence control circuit for direct-cooled machine control refrigerator also comprises illuminating lamp and light switch; After being connected in series, described illuminating lamp and light switch be connected between two outputs of wave filter.
Be connected with attaching plug on the input of described wave filter.
Compared with the prior art, the utility model beneficial effect is embodied in:
The VFC plate has two kinds of control logics, and when temperature sensor was lower than a certain set point temperatures, the VFC plate was by control logic A control compressor operating; When temperature sensor was higher than a certain set point temperatures, the VFC plate was by control logic B control compressor operating.
During by control logic A operation, can guarantee that (150L～250L) a kind of compressor of coupling can keep the optimum Match state to not isometric refrigerator in next constant volume scope of various operating modes all the time.During by control logic B operation, can guarantee that the heat load of putting into refrigerating chamber drops to below-18 degree within a short period of time, guarantees the realization of the larger heat load refrigerating capacity of refrigerator.
The utility model is by using intelligent control module frequency-changeable compressor technology at machine control direct cooling refrigerator, automatically adjust the output refrigerating capacity of frequency-changeable compressor by two kinds of control logics of VFC plate, can guarantee that namely (150L～250L) a kind of compressor of coupling can keep the optimum Match state to not isometric refrigerator in next constant volume scope of various operating modes all the time, can realize again the refrigerating capacity of the larger heat load of machine control direct cooling refrigerator, do not affect simultaneously user's normal use, the frequency-changeable compressor that has improved the same specifications parameter is the not isometric machine control direct cooling refrigerator (adaptability of refrigeration performance coupling of 150L～3000L) in a constant volume scope, the environment for use adaptability of raising machine control direct cooling refrigerator and the reliability of complete machine refrigeration system double (can reach 9kg/100L) to the refrigerating capacity of machine control direct cooling refrigerator on existing GB basis.
Intelligence control circuit for direct-cooled machine control refrigerator of the present utility model has and can guarantee that in next constant volume scope of various operating modes not isometric refrigerator mates the advantages such as refrigerating capacity that a kind of compressor can keep all the time the optimum Match state and can realize the larger heat load of machine control direct cooling refrigerator.
Description of drawings
Fig. 1 is the schematic diagram of the intelligence control circuit for direct-cooled machine control refrigerator of the present utility model.
Fig. 2 is the energy consumption testing power curve of the refrigerator of application intelligence control circuit of the present utility model.
Fig. 3 is 43 ℃ of storage temperature measured power curves of the refrigerator of application intelligence control circuit of the present utility model.
Fig. 4 is the refrigerating capacity measured power curve of the refrigerator of application intelligence control circuit of the present utility model.
Label in accompanying drawing 1～accompanying drawing 4: 1 frequency-changeable compressor, 2 VFC plates, 3 compensating heaters, 4 magnetic switch, 5 temperature controllers, 6 light switches, 7 illuminating lamps, 8 wave filters, 9 temperature sensors, 10 attaching plugs.
Below pass through the specific embodiment, and the utility model is described in further detail by reference to the accompanying drawings.
The specific embodiment
Referring to figure accompanying drawing 1～accompanying drawing 4, be used for the intelligence control circuit of direct-cooled machine control refrigerator, comprise frequency-changeable compressor 1, wave filter 8, VFC plate 2, temperature sensor 9, compensating heater 3, magnetic switch 4 and temperature controller 5; Two terminals of described VFC plate 2 are connected with two outputs of described wave filter 8 respectively; Described frequency-changeable compressor 1 all is connected with described VFC plate 2 with temperature sensor 9; After being connected in series successively, described compensating heater 3, magnetic switch 4 and temperature controller 5 be connected between two outputs of wave filter 8; Described VFC plate 2 is used for the running status of control frequency-changeable compressor 1; Described temperature controller 5 also is connected with described VFC plate 2.
Temperature sensor changes temperature value into electrical quantity and passes to the VFC plate, triggers the VFC plate by this control signal and carries out the selection of control logic A and B, by the VFC plate control logic is exported to compressor again, thus the duty of control compressor.Temperature controller is used for measuring the evaporating temperature value in the refrigerating chamber, and when the evaporating temperature of refrigerating chamber reached the break point temperature of temperature controller, temperature controller disconnected, and compressor is out of service; When the evaporating temperature of refrigerating chamber reached the starting point temperature of temperature controller, temperature controller was connected, the compressor start operation.
The control circuit figure of intelligence control circuit of the present utility model as shown in Figure 1, the VFC plate is connected with compressor with temperature controller, temperature controller is controlled the start-stop of compressor by the VFC plate, the VFC plate is by the variation (being sensed as the variation of electrical quantity such as electric current, power) of thermic load in the monitoring box, automatically adjust the rotating speed of compressor according to predefined two kinds of control logics, make refrigerator under various operating modes, can keep the optimum Match state all the time.Refrigerating chamber is established temperature sensor, is placed on the ad-hoc location of refrigerating chamber.The VFC plate has following two kinds of control logics, the running status that is used for the control compressor, so that compressor can move, thereby realize the optimum Match state of compressor horsepower under different condition, with energy savings and prolong service life of refrigerator under two kinds of running statuses.
Control logic A: the thermic load of refrigerating chamber remains on (temperature of temperature sensor is lower than a certain design temperature all the time) when constant under a certain design temperature; all move with predefined minimum speed after the each startup of frequency-changeable compressor; collection, judgement by electrical quantity after with scheduled time t of minimum speed stable operation; compressor improves the again described scheduled time t of stable operation of rotating speed automatically, and compressor constantly improves rotating speed, stable operation until temperature controller reaches halt condition by this logic.Halt condition is: temperature controller is arranged in refrigerating chamber, measures the evaporating temperature of refrigerating chamber, and when the evaporating temperature of refrigerating chamber reached the break point temperature of temperature controller, temperature controller disconnected, and compressor is out of service.
Control logic B: when the thermic load of refrigerating chamber changes (refrigerating chamber is put into heat load, and the temperature recovery of temperature sensor is when being higher than a certain set point temperatures), the VFC plate switches to control logic B, and the beginning timing; The each start-up and operation of frequency-changeable compressor this moment remains a desired speed v constant (a little more than minimum speed); when compressor accumulated running time reaches 72 hours; after the temperature of simultaneous temperature sensor is reduced to and is lower than a certain predetermined temperature T; namely shutting down backed off after random B logic, again switch to control logic A.
Intelligence control circuit of the present utility model can guarantee that (150L～250L) a kind of compressor of coupling can keep the optimum Match state to not isometric refrigerator in next constant volume scope of various operating modes all the time.By application of the present utility model; collection, judgement by frequency conversion plate electrical quantity; frequency-changeable compressor can improve rotating speed, stable operation discontinuously automatically until temperature controller reaches break point, and the refrigerator volume adaptability that has namely improved compressor has also improved the environmental suitability of complete machine.
Intelligence control circuit of the present utility model can guarantee the realization of the large refrigerating capacity of direct-cooled machine control refrigerator.When the thermic load of frequency conversion refrigerator refrigerating chamber changes (refrigerating chamber is put into heat load, and the temperature recovery of temperature sensor is when being higher than a certain set point temperatures), compressor switches under the control logic B and moves.Because with lower rotating speed operation, the refrigeration evaporating temperature is higher, and is in all the time superheat state all the time for compressor, the available machine time prolongs for the first time after the test of beginning refrigerating capacity to cause refrigerator.Such as Fig. 4, because compressor moves with lower rotating speed all the time, the refrigeration evaporating temperature is higher, and is in all the time superheat state, and the temperature of temperature controller collection is exactly the temperature of refrigeration evaporator.Because the refrigeration evaporating temperature is higher; so that the temperature of temperature controller temperature-sensitive section collection does not reach the temperature of temperature controller break point in a long time; thereby prolonged the first time available machine time of refrigerator after the test of beginning refrigerating capacity; and guarantee that temperature of refrigerating chamber is zero passage not in the running of so looking.Simultaneously because the continuous operating time of compressor elongates, guaranteed that also the pressure storehouse load of refrigerating chamber and chilled load can drop to-18 degree with speed faster, thereby guaranteed the refrigerating capacity test of larger heat load.Because moving, frequency-changeable compressor need to satisfy certain entry condition when being higher than a certain set point temperatures (temperature recovery of freezer temperature sensor to) under control logic B, simultaneously (compressor accumulated running time reaches 72 hours after reaching certain condition, the temperature of simultaneous temperature sensor is reduced to and is lower than a certain design temperature) can automatically withdraw from control logic B, be transformed into control logic A, it is shorter that therefore whole refrigeration system refrigerates the overheated time, can not affect user's normal use.）
Described intelligence control circuit for direct-cooled machine control refrigerator also comprises illuminating lamp 7 and light switch 6; After being connected in series, described illuminating lamp 7 and light switch 6 be connected between two outputs of wave filter 8.Wave filter is used for external ac power source is converted to dc source, for illuminating lamp, VFC plate and compensating heater, magnetic switch and temperature controller etc. provide power supply.
Be connected with attaching plug 10 on the input of described wave filter 8.
Fig. 2～Fig. 4 is power curve, and wherein ordinate is the measured power value, and abscissa is the testing time.A point place power is 0 among Fig. 2, and the temperature of representation temperature controller collection reaches the break point temperature of temperature controller.
Claims (3)
1. be used for the intelligence control circuit of direct-cooled machine control refrigerator, it is characterized in that, comprise frequency-changeable compressor (1), wave filter (8), VFC plate (2), temperature sensor (9), compensating heater (3), magnetic switch (4) and temperature controller (5); Two terminals of described VFC plate (2) are connected with two outputs of described wave filter (8) respectively; Described frequency-changeable compressor (1) all is connected with described VFC plate (2) with temperature sensor (9); After being connected in series successively, described compensating heater (3), magnetic switch (4) and temperature controller (5) be connected between two outputs of wave filter (8); Described VFC plate (2) is used for the running status of control frequency-changeable compressor (1); Described temperature controller (5) also is connected with described VFC plate (2).
2. the intelligence control circuit for direct-cooled machine control refrigerator according to claim 1 is characterized in that, also comprises illuminating lamp (7) and light switch (6); After being connected in series, described illuminating lamp (7) and light switch (6) be connected between two outputs of wave filter (8).
3. the intelligence control circuit for direct-cooled machine control refrigerator according to claim 1 is characterized in that, is connected with attaching plug (10) on the input of described wave filter (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220601908 CN202885436U (en) | 2012-11-14 | 2012-11-14 | Intelligent control circuit for direct cooling mechanical-control refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220601908 CN202885436U (en) | 2012-11-14 | 2012-11-14 | Intelligent control circuit for direct cooling mechanical-control refrigerator |
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| Publication Number | Publication Date |
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| CN202885436U true CN202885436U (en) | 2013-04-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220601908 Expired - Fee Related CN202885436U (en) | 2012-11-14 | 2012-11-14 | Intelligent control circuit for direct cooling mechanical-control refrigerator |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103134266A (en) * | 2012-11-14 | 2013-06-05 | 合肥晶弘电器有限公司 | Intelligent control circuit used for direct cooling mechanical control refrigerator |
| CN104792077A (en) * | 2015-04-24 | 2015-07-22 | 合肥美的电冰箱有限公司 | Refrigeration equipment and machine starting control method and device for compressor for refrigeration equipment |
-
2012
- 2012-11-14 CN CN 201220601908 patent/CN202885436U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103134266A (en) * | 2012-11-14 | 2013-06-05 | 合肥晶弘电器有限公司 | Intelligent control circuit used for direct cooling mechanical control refrigerator |
| CN103134266B (en) * | 2012-11-14 | 2015-12-02 | 合肥晶弘电器有限公司 | For the intelligent control circuit of direct-cooled machine control refrigerator |
| CN104792077A (en) * | 2015-04-24 | 2015-07-22 | 合肥美的电冰箱有限公司 | Refrigeration equipment and machine starting control method and device for compressor for refrigeration equipment |
| CN104792077B (en) * | 2015-04-24 | 2020-10-30 | 合肥美的电冰箱有限公司 | Refrigeration equipment and starting control method and device for compressor of refrigeration equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: 230601 Hefei economic and Technological Development Zone, Anhui Road, No. 4288 Patentee after: Hefei Kinghome Electrical Appliance Co., Ltd. Address before: 230601 No. 35, Taoyuan Road, Hefei economic and Technological Development Zone, Anhui, China Patentee before: Hefei Kinghome Electrical Appliance Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130417 Termination date: 20141114 |
|
| EXPY | Termination of patent right or utility model |