CN108592513B - Method and device for controlling evaporation fan of freezing and refrigerating device - Google Patents
Method and device for controlling evaporation fan of freezing and refrigerating device Download PDFInfo
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- CN108592513B CN108592513B CN201810368621.3A CN201810368621A CN108592513B CN 108592513 B CN108592513 B CN 108592513B CN 201810368621 A CN201810368621 A CN 201810368621A CN 108592513 B CN108592513 B CN 108592513B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D29/00—Arrangement or mounting of control or safety devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2700/00—Means for sensing or measuring; Sensors therefor
- F25D2700/12—Sensors measuring the inside temperature
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- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The application discloses a control method and device for an evaporation fan of a freezing and refrigerating device, relates to the field of refrigeration, and is used for increasing the cooling speed of a freezer, keeping the temperature in the freezer uniform and reducing the power consumption. A method of controlling an evaporation fan of a refrigerated storage unit, the method comprising: collecting the ambient temperature; and controlling the on-off states of the main evaporation fan and the auxiliary evaporation fan according to the on-off state of the compressor and the environment temperature. The embodiment of the application is applied to the control of the evaporation fan of the freezing and refrigerating device.
Description
Technical Field
The invention relates to the field of refrigeration, in particular to a method and a device for controlling an evaporation fan of a freezing and refrigerating device.
Background
Along with the national promulgation and implementation of the energy consumption standard GB 26920.2 commercial refrigerator energy efficiency standard of the self-carrying condensing unit for the commercial refrigerator, higher and higher requirements are put forward on the performance of the commercial refrigerator. The main concerns for freezer products are: the cooling speed is fast, the temperature uniformity is good, the power consumption is low, and the three components supplement each other and influence each other.
Before the energy consumption standard is proposed, in order to achieve a faster cooling rate, the most common practice in the industry is: the system is matched with a compressor with larger refrigerating capacity, and a larger heat exchanger and an evaporation fan with larger air quantity are used. The control methods for the evaporation fan are divided into two types: the evaporation fan is normally opened or the evaporation fan and the compressor are simultaneously switched on and off. These two control methods have respective advantages and disadvantages: the normal opening of the evaporation fan is beneficial to improving the cooling speed of the refrigerator and the uniformity of the temperature in the refrigerator, and is beneficial to the starting and stopping performance of products, and the defects are that the fan needs to consume electric energy during operation, and the power consumption is increased; the evaporation fan and the compressor are switched on and off simultaneously, so that energy conservation is facilitated, the defects that the uniformity of the temperature in the cabinet is poor, the temperature performance is difficult to meet the standard requirement, and the product has the condition of unstable start-stop period and influences the use of a user.
Disclosure of Invention
The embodiment of the application provides a method and a device for controlling an evaporation fan of a freezing and refrigerating device, which are used for improving the cooling speed of the freezing and refrigerating device, keeping the temperature in a cabinet uniform and reducing the power consumption.
In order to achieve the above purpose, the embodiment of the present application adopts the following technical solutions:
in a first aspect, there is provided a method for controlling an evaporation fan of a refrigeration device, the method comprising:
collecting the ambient temperature;
and controlling the on-off states of the main evaporation fan and the auxiliary evaporation fan according to the on-off state and the ambient temperature of the compressor.
In a second aspect, there is provided a control device for an evaporation fan of a freezing and refrigerating device, comprising:
the acquisition unit is used for acquiring the ambient temperature;
and the control unit is used for controlling the on-off states of the main evaporation fan and the auxiliary evaporation fan according to the on-off state of the compressor and the environmental temperature collected by the collecting unit.
In a third aspect, there is provided a computer readable storage medium storing one or more programs, the one or more programs comprising instructions, which when executed by a computer, cause the computer to perform the method of the first aspect.
In a fourth aspect, a freezing and refrigerating device is provided, which comprises an evaporator, at least one main evaporation fan and at least one auxiliary evaporation fan for conveying the cold energy of the evaporator to the storage compartment, and the freezing and refrigerating device also comprises an evaporation fan control device of the second aspect.
The method and the device for controlling the evaporation fan of the freezing and refrigerating device can collect the ambient temperature and respectively control the start and stop of the main evaporation fan and the auxiliary evaporation fan in the freezing and refrigerating device according to the change of different ambient temperatures, thereby controlling the performance of the freezing and refrigerating device and reducing the power consumption.
Drawings
Fig. 1 is a schematic side view of a refrigeration apparatus according to an embodiment of the present application;
fig. 2 is a schematic front view of another refrigeration apparatus provided in accordance with an embodiment of the present application;
fig. 3 is a first flowchart illustrating a method for controlling an evaporation fan of a refrigeration device according to an embodiment of the present application;
fig. 4 is a second flowchart illustrating a method for controlling an evaporation fan of a refrigeration device according to an embodiment of the present application;
fig. 5 is a schematic structural diagram of an evaporation fan control device of a freezing and refrigerating device according to an embodiment of the present application.
Detailed Description
Referring to fig. 1 and 2, a freezing and refrigerating apparatus according to the present invention includes: the refrigerator comprises a box body heat-insulating layer 11, a door body 12, a refrigerating system, a freezing and refrigerating device evaporation fan control device 16, a condensation fan (not shown in the figure) and an evaporation fan set; the refrigeration system includes a compressor (not shown), a condenser (not shown), an evaporator 13; the evaporator fan set comprises at least one main evaporator fan 14 and at least one auxiliary evaporator fan 15 and is used for conveying cold energy of the evaporator 13 into the storage room. The condensing fan is used for carrying out forced convection on the condenser, and the evaporating fan set is used for carrying out forced convection on the evaporator 13. The freezing and refrigerating device evaporation fan control device 16 is used for executing the freezing and refrigerating device evaporation fan control method. Freezing and refrigerating devices include, but are not limited to, refrigerators, freezers, and the like.
For the freezing and refrigerating device with a relatively narrow box body and a large size in the height direction, the installation scheme of the evaporation fan shown in fig. 1 can be used, namely, the auxiliary evaporation fan can be arranged at the lower part or the upper part of the main evaporation fan, and other specific areas at the top in the freezing and refrigerating device can be used as long as the air outlet channel of the evaporation fan is not blocked. For the refrigerating and freezing device with wider box body and even two main evaporation fans, the installation scheme of the evaporation fans shown in fig. 2 can be used, namely the auxiliary evaporation fan can be arranged at the left or right of the main evaporation fan, for example, the auxiliary evaporation fan is arranged between the two main evaporation fans, and other specific areas at the top in the refrigerating and freezing device can be used as long as the air outlet channel of the evaporation fan is not blocked. The air output of the auxiliary evaporation fan can be smaller than that of the main evaporation fan.
In order to solve the problem that the product cooling speed of the freezing and refrigerating device and the temperature uniformity and power consumption in the cabinet are restricted, an auxiliary evaporation fan is added in the freezing and refrigerating device, a main evaporation fan and the auxiliary evaporation fan are respectively and independently controlled through a controller, and the start and stop of the main evaporation fan and the auxiliary evaporation fan follow different control methods under different environmental temperatures. The scheme of this application is applicable to the refrigerated freezing cold storage plant product with the air-cooled mode.
Examples 1,
The embodiment of the application provides a method for controlling an evaporation fan of a freezing and refrigerating device, which is applied to the freezing and refrigerating device and shown in fig. 3, and the method comprises the following steps:
and S11, collecting the ambient temperature.
And S12, controlling the on-off state of the main evaporation fan and the auxiliary evaporation fan according to the on-off state and the ambient temperature of the compressor.
Specifically, referring to fig. 4, step S12 may include S121 and S122:
and S121, if the ambient temperature is greater than a first threshold, controlling the main evaporation fan and the auxiliary evaporation fan to be in a starting state.
Alternatively, the climate type specified in the SB/T21001 standard may be followed and the first threshold may be a division standard (40℃.) for the category 5 climate type.
And S122, if the ambient temperature is less than or equal to the first threshold and greater than the second threshold, and if the compressor is in the starting state, controlling the main evaporation fan and the auxiliary evaporation fan to be in the starting state.
Alternatively, the climate type specified in the SB/T21001 standard may be followed and the second threshold may be a division standard (35℃) for the category 7 climate type.
And S123, if the compressor is in the shutdown state, controlling the main evaporation fan to be in the startup state, and controlling the auxiliary evaporation fan to be in the shutdown state.
And S124, if the ambient temperature is less than or equal to the second threshold and greater than the third threshold, and if the compressor is in the on state, controlling the main evaporation fan to be in the on state, and controlling the auxiliary evaporation fan to be in the off state.
And S125, if the compressor is in the shutdown state, controlling the main evaporation fan and the auxiliary evaporation fan to be in the shutdown state.
Alternatively, the climate type specified in the SB/T21001 standard may be followed and the third threshold may be a division standard (27 ℃) for the category 6 climate type.
And S126, if the ambient temperature is less than or equal to the third threshold, and if the compressor is in the on state, controlling the main evaporation fan to be in the off state, and controlling the auxiliary evaporation fan to be in the on state.
And S127, if the compressor is in the shutdown state, controlling the main evaporation fan and the auxiliary evaporation fan to be in the shutdown state.
Under different environmental temperatures, the controller respectively controls the selective switch of the main evaporation fan and the auxiliary evaporation fan, so that the maximum air quantity, the cooling speed and the uniformity of the temperature in the cabinet can be ensured under the condition of high temperature cooling; and under the condition of heat preservation at a lower temperature, the power and the operation time of the running fan can be reduced, the power and the power consumption of a product are reduced, and the reliability of the fan is improved.
As shown in table 1, to select the evaporation fan delayed shutdown control rule of the above parameters:
TABLE 1
Carry out the standard test under the condition that adopts above-mentioned parameter, the scheme of this application compares with traditional mode refrigeration storage device test result under the same condition, and 40 ℃ of ambient temperature is full-load cooling speed down promotes about 1 ~ 2h, and 40 ℃ of ambient temperature is full-load temperature homogeneity in the cabinet promotes 0.5 ℃, and 25 ℃ of power consumption about 10% drop, and each performance index all promotes.
The control method for the evaporation fan of the freezing and refrigerating device can collect the ambient temperature and respectively control the start and stop of the main evaporation fan and the auxiliary evaporation fan in the freezing and refrigerating device according to the change of different ambient temperatures, so that the performance of the freezing and refrigerating device is controlled and the power consumption is reduced.
In addition, compared with the conventional freezing and refrigerating device, the refrigerating device can also improve the prior art, in order to achieve the same refrigerating speed as the conventional product, the refrigerating capacity of a compressor and the air volume of a main fan can be reduced, an auxiliary fan is added, and the problem that the mutual restriction of the cooling speed, the temperature uniformity in the cabinet and the power consumption cannot be solved by the conventional design method can be solved under the condition that the product cost is not increased.
Examples 2,
The present application provides a control device for an evaporation fan of a freezing and refrigerating device, which is applied to the above method, and referring to fig. 5, the device 100 comprises:
and the acquisition unit 101 is used for acquiring the ambient temperature.
And the control unit 102 is configured to control the on/off states of the main evaporation fan and the auxiliary evaporation fan according to the on/off state of the compressor and the ambient temperature collected by the collection unit 101.
Optionally, the control unit 102 is specifically configured to: if the ambient temperature is greater than a first threshold, controlling the main evaporation fan and the auxiliary evaporation fan to be in a starting state; if the ambient temperature is less than or equal to a first threshold and greater than a second threshold, and if the compressor is in a starting state, controlling the main evaporation fan and the auxiliary evaporation fan to be in the starting state, and if the compressor is in a shutdown state, controlling the main evaporation fan to be in the starting state and controlling the auxiliary evaporation fan to be in the shutdown state; if the ambient temperature is less than or equal to the second threshold and greater than a third threshold, and if the compressor is in a starting state, controlling the main evaporation fan to be in the starting state and controlling the auxiliary evaporation fan to be in a shutdown state, and if the compressor is in the shutdown state, controlling the main evaporation fan and the auxiliary evaporation fan to be in the shutdown state; and if the ambient temperature is less than or equal to the third threshold, and if the compressor is in a starting state, controlling the main evaporation fan to be in a stopping state, and controlling the auxiliary evaporation fan to be in a starting state, and if the compressor is in a stopping state, controlling the main evaporation fan and the auxiliary evaporation fan to be in a stopping state.
Optionally, the first threshold is 40 ℃, the second threshold is 35 ℃, and the third threshold is 27 ℃.
Since the apparatus in the embodiment of the present application can be applied to the method, the technical effect obtained by the apparatus can also refer to the embodiment of the method, and the embodiment of the present application is not described herein again.
Embodiments of the present invention provide a computer readable storage medium storing one or more programs, the one or more programs comprising instructions, which when executed by a computer, cause the computer to perform a method as described in fig. 3-4.
The above units may be individually configured processors, or may be implemented by being integrated into one of the processors of the controller, or may be stored in a memory of the controller in the form of program codes, and the functions of the above units may be called and executed by one of the processors of the controller. The processor described herein may be a Central Processing Unit (CPU), or an Application Specific Integrated Circuit (ASIC), or one or more integrated circuits configured to implement embodiments of the present Application.
It should be understood that, in the various embodiments of the present application, the sequence numbers of the above-mentioned processes do not mean the execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.
Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus, and method may be implemented in other ways. For example, the above-described device embodiments are merely illustrative, and for example, the division of the units is only one logical functional division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.
In the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When implemented using a software program, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. The procedures or functions described in accordance with the embodiments of the present application are all or partially generated upon loading and execution of computer program instructions on a computer. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored on a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, from one website, computer, server, or data center to another website, computer, server, or data center via wire (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or can comprise one or more data storage devices, such as a server, a data center, etc., that can be integrated with the medium. The usable medium may be a magnetic medium (e.g., floppy Disk, hard Disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., Solid State Disk (SSD)), among others.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (8)
1. A control method for an evaporation fan of a freezing and refrigerating device is characterized by comprising the following steps:
collecting the ambient temperature;
if the ambient temperature is greater than a first threshold, controlling the main evaporation fan and the auxiliary evaporation fan to be in a starting state;
if the ambient temperature is less than or equal to a first threshold and greater than a second threshold, and if the compressor is in a starting state, controlling the main evaporation fan and the auxiliary evaporation fan to be in the starting state, and if the compressor is in a shutdown state, controlling the main evaporation fan to be in the starting state and controlling the auxiliary evaporation fan to be in the shutdown state;
if the ambient temperature is less than or equal to the second threshold and greater than a third threshold, and if the compressor is in a starting state, controlling the main evaporation fan to be in the starting state and controlling the auxiliary evaporation fan to be in a shutdown state, and if the compressor is in the shutdown state, controlling the main evaporation fan and the auxiliary evaporation fan to be in the shutdown state;
and if the ambient temperature is less than or equal to the third threshold, and if the compressor is in a starting state, controlling the main evaporation fan to be in a stopping state, and controlling the auxiliary evaporation fan to be in a starting state, and if the compressor is in a stopping state, controlling the main evaporation fan and the auxiliary evaporation fan to be in a stopping state.
2. The method of claim 1, wherein the first threshold is 40 ℃, the second threshold is 35 ℃, and the third threshold is 27 ℃.
3. The utility model provides a freezing cold storage plant evaporation fan controlling means which characterized in that includes:
the acquisition unit is used for acquiring the ambient temperature;
a control unit for:
if the ambient temperature is greater than a first threshold, controlling the main evaporation fan and the auxiliary evaporation fan to be in a starting state;
if the ambient temperature is less than or equal to a first threshold and greater than a second threshold, and if the compressor is in a starting state, controlling the main evaporation fan and the auxiliary evaporation fan to be in the starting state, and if the compressor is in a shutdown state, controlling the main evaporation fan to be in the starting state and controlling the auxiliary evaporation fan to be in the shutdown state;
if the ambient temperature is less than or equal to the second threshold and greater than a third threshold, and if the compressor is in a starting state, controlling the main evaporation fan to be in the starting state and controlling the auxiliary evaporation fan to be in a shutdown state, and if the compressor is in the shutdown state, controlling the main evaporation fan and the auxiliary evaporation fan to be in the shutdown state;
and if the ambient temperature is less than or equal to the third threshold, and if the compressor is in a starting state, controlling the main evaporation fan to be in a stopping state, and controlling the auxiliary evaporation fan to be in a starting state, and if the compressor is in a stopping state, controlling the main evaporation fan and the auxiliary evaporation fan to be in a stopping state.
4. The apparatus of claim 3, wherein the first threshold is 40 ℃, the second threshold is 35 ℃, and the third threshold is 27 ℃.
5. A computer readable storage medium storing one or more programs, the one or more programs comprising instructions, which when executed by a computer, cause the computer to perform the method of any of claims 1-2.
6. A cold storage device, comprising an evaporator, at least one main evaporator fan and at least one auxiliary evaporator fan for supplying the cooling energy of the evaporator to a storage compartment, and further comprising an evaporator fan control device of the cold storage device as claimed in any one of claims 3 to 4.
7. The apparatus of claim 6, wherein the auxiliary evaporation fan is disposed at a lower portion or an upper portion of the main evaporation fan, or the auxiliary evaporation fan is disposed at a left or right of the main evaporation fan.
8. The apparatus of claim 6 or 7, wherein the air output of the auxiliary evaporation fan is smaller than the main evaporation fan.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810368621.3A CN108592513B (en) | 2018-04-23 | 2018-04-23 | Method and device for controlling evaporation fan of freezing and refrigerating device |
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| CN201810368621.3A CN108592513B (en) | 2018-04-23 | 2018-04-23 | Method and device for controlling evaporation fan of freezing and refrigerating device |
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| CN108592513B true CN108592513B (en) | 2020-01-10 |
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| CN201103979Y (en) * | 2007-08-07 | 2008-08-20 | 上海诺地乐通用设备制造有限公司 | Fan wall |
| WO2012016402A1 (en) * | 2010-08-02 | 2012-02-09 | 海信（北京）电器有限公司 | All-weather energy-saving method and device for refrigerator and all-weather energy-saving refrigetator |
| CN204043278U (en) * | 2014-06-19 | 2014-12-24 | 宁波奇红电器有限公司 | A kind of radiating device of refrigerator and there is the refrigerator of this device |
| CN106403484B (en) * | 2015-12-04 | 2019-11-26 | 苏州新亚科技有限公司 | A kind of intelligent object networked control systems and its control method |
| CN106402009B (en) * | 2016-10-26 | 2018-10-09 | 华南理工大学 | Air quantity control system based on principal and subordinate's logic and method |
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