Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

Pre-shutdown control method and device and refrigeration equipment

A technology for refrigeration equipment and shutdown, applied in the field of refrigeration equipment, pre-shutdown control methods, and devices, can solve problems such as precise control of cold storage rooms, achieve the effects of reducing costs, improving temperature uniformity, and helping to preserve freshness

Active Publication Date: 2022-04-15
GREE ELECTRIC APPLIANCES INC
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the embodiment of the present invention, a pre-shutdown control method, device and refrigeration equipment are provided to solve the problem of how to precisely control the refrigeration room under the premise of low cost in the prior art room temperature problem

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Pre-shutdown control method and device and refrigeration equipment
  • Pre-shutdown control method and device and refrigeration equipment
  • Pre-shutdown control method and device and refrigeration equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0067] figure 2 is a flowchart of a pre-shutdown control method according to an embodiment of the present invention, such as figure 2 As shown, the method includes the following steps:

[0068] Step S201, periodically monitoring whether there is a change in the temperature range of the ambient temperature; and, periodically monitoring whether there is a door opening and closing action of the refrigeration equipment;

[0069] Wherein, the above-mentioned ambient temperature refers to the ambient temperature of the environment where the refrigeration equipment is located. If the refrigeration equipment is placed indoors, the above-mentioned ambient temperature can be understood as the indoor ambient temperature; if the refrigeration equipment is placed outdoors, the above-mentioned ambient temperature can be understood as The ambient temperature around the refrigeration equipment (eg, a preset range), such as the outdoor ambient temperature;

[0070] Step S202, adopting a co...

Embodiment 2

[0112] Taking a refrigerator as an example, the control logic of the present invention will be described in detail with reference to the accompanying drawings.

[0113] image 3 is a logic flow chart of refrigerator pre-stop control logic according to an embodiment of the present invention, such as image 3 As shown, the process includes:

[0114] Step S301 , in the current cycle, monitor whether the temperature range of the ambient temperature has changed; and monitor whether the door of the refrigerator is opened or closed.

[0115] In step S302, the temperature range of the ambient temperature does not change, and the refrigerator does not open or close the door.

[0116] Step S303, determine whether the actual temperature of the freezing compartment is lower than the preset freezing temperature, and the difference between the two exceeds the preset difference, for example, if the preset freezing temperature is -18°C, the actual temperature of the freezing compartment is ...

Embodiment 3

[0133] corresponds to figure 2 Introduced pre-shutdown control, this embodiment provides a kind of pre-shutdown control device, such as Figure 8 The structural block diagram of the pre-shutdown control device shown, the device includes:

[0134] The monitoring module 10 is used to periodically monitor whether there is a change in the temperature range of the ambient temperature; and, periodically monitor whether the refrigeration equipment has a door opening and closing action; wherein, the above-mentioned ambient temperature refers to the ambient temperature of the environment where the refrigeration equipment is located;

[0135] The adjustment module 20 is connected to the monitoring module 10, and is used to adopt a corresponding control strategy to adjust the pre-shutdown duration of the next cycle according to the monitoring results of the current cycle, or to adjust the pre-closing duration of the next cycle;

[0136] Among them, the pre-stop time is used to characte...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a pre-shutdown control method and device and refrigeration equipment. The method comprises the following steps: periodically monitoring whether a temperature interval in which the environment temperature is located is changed or not; periodically monitoring whether the refrigeration equipment has door opening and closing actions or not; and according to the monitoring result of the current period, a corresponding control strategy is adopted to adjust the pre-shutdown duration of the next period, or the pre-closing air door duration of the next period is adjusted. According to the invention, corresponding pre-shutdown regulation and control methods are adopted under different working conditions, and the problem of large temperature fluctuation caused by insufficient precision of the temperature sensing bulb in the refrigeration equipment is compensated. According to the control logic, accurate temperature control can be realized without a high-precision temperature sensing bulb with relatively high cost, and the cost is reduced. The residual cold of the freezing chamber is effectively utilized to reasonably input cold into the refrigeration chamber, the internal temperature of the refrigeration chamber is accurately controlled, the internal temperature uniformity of the refrigeration equipment is improved, and freshness retaining of food materials is facilitated.

Description

technical field [0001] The present invention relates to the technical field of refrigeration, in particular to a pre-shutdown control method, device and refrigeration equipment. Background technique [0002] Generally speaking, refrigeration equipment (such as ordinary refrigerators, supermarket display cabinets, etc.) will be equipped with temperature-sensing packages to monitor the cooling temperature of refrigerated and frozen rooms, but the temperature-sensing packages generally used are not accurate. When the refrigerated temperature is set at 4°C, the control scheme of cooling above 4°C and turning off refrigeration at less than 4°C is generally not adopted in the control, because the temperature sensing package has an accuracy range, and 4.1 to 4.9°C may be mistaken for 4°C, so generally The control scheme is to turn on refrigeration at 5°C and turn off cooling delivery at 3°C. However, in fact, it is easy to cause deviations in the temperature of the compartment. O...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): F25D29/00
Inventor 王铭坤廖虎李江伟冯云凌刘洋文翔
Owner GREE ELECTRIC APPLIANCES INC
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com