WO2016095402A1 - 制冷装置和制冷装置的冷水温度控制方法 - Google Patents

制冷装置和制冷装置的冷水温度控制方法 Download PDF

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Publication number
WO2016095402A1
WO2016095402A1 PCT/CN2015/078095 CN2015078095W WO2016095402A1 WO 2016095402 A1 WO2016095402 A1 WO 2016095402A1 CN 2015078095 W CN2015078095 W CN 2015078095W WO 2016095402 A1 WO2016095402 A1 WO 2016095402A1
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Prior art keywords
temperature
water
water temperature
refrigeration device
preset
Prior art date
Application number
PCT/CN2015/078095
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English (en)
French (fr)
Inventor
谢剑周
王彩霞
李兴凡
江呈丰
Original Assignee
佛山市顺德区美的饮水机制造有限公司
美的集团股份有限公司
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Application filed by 佛山市顺德区美的饮水机制造有限公司, 美的集团股份有限公司 filed Critical 佛山市顺德区美的饮水机制造有限公司
Priority to US15/536,650 priority Critical patent/US20190086144A1/en
Priority to MX2017007961A priority patent/MX2017007961A/es
Priority to RU2017125022A priority patent/RU2671608C1/ru
Publication of WO2016095402A1 publication Critical patent/WO2016095402A1/zh

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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
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B49/00—Arrangement or mounting of control or safety devices
    • F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
    • F25B49/022—Compressor control arrangements
    • 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
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B49/00—Arrangement or mounting of control or safety devices
    • F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
    • 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
    • F25D23/00—General constructional features
    • F25D23/12—Arrangements of compartments additional to cooling compartments; Combinations of refrigerators with other equipment, e.g. stove
    • F25D23/126—Water cooler
    • 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
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2600/00—Control issues
    • F25B2600/01—Timing
    • 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
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2600/00—Control issues
    • F25B2600/02—Compressor control
    • F25B2600/025—Compressor control by controlling speed
    • F25B2600/0251—Compressor control by controlling speed with on-off operation
    • 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
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2700/00—Sensing or detecting of parameters; Sensors therefor
    • F25B2700/21—Temperatures
    • 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
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2700/00—Sensing or detecting of parameters; Sensors therefor
    • F25B2700/21—Temperatures
    • F25B2700/2117—Temperatures of an evaporator
    • F25B2700/21171—Temperatures of an evaporator of the fluid cooled by the evaporator
    • 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
    • F25C—PRODUCING, WORKING OR HANDLING ICE
    • F25C2600/00—Control issues
    • F25C2600/02—Timing
    • 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
    • F25C—PRODUCING, WORKING OR HANDLING ICE
    • F25C2700/00—Sensing or detecting of parameters; Sensors therefor
    • F25C2700/14—Temperature of water
    • 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
    • F25D2600/00—Control issues
    • F25D2600/02—Timing
    • 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
    • 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
    • F25D2700/121—Sensors measuring the inside temperature of particular compartments

Definitions

  • the invention relates to the technical field of household appliances, in particular to a cold water temperature control method of a refrigeration device and a refrigeration device.
  • the temperature control accuracy of the relevant thermostat is usually between 1.5 and 2 degrees Celsius, while the cold water generally has a temperature fluctuation of only 3 to 5 degrees Celsius.
  • the temperature control accuracy of the thermostat is difficult to achieve the high precision of the cold water temperature. Control, and the temperature control accuracy of the thermostat is difficult to increase, which makes it difficult to improve the control accuracy of the cold water temperature of the relevant refrigeration unit.
  • an object of the present invention is to provide a cold water temperature control method for a refrigeration device, which can more accurately control the water temperature of the cold water and avoid the influence of the temperature control accuracy of the temperature controller.
  • Another object of the present invention is to provide a refrigeration apparatus.
  • a method for controlling a cold water temperature of a refrigerating apparatus includes the steps of: controlling a refrigerating device to enter a heat retaining state; detecting a water temperature in a water tank in the refrigerating device; and if the water temperature is greater than a first preset temperature, Controlling the refrigeration device to perform a cooling operation for a preset time to make the water temperature be less than the second preset temperature, and controlling the refrigeration device to stop the cooling operation after the preset time, wherein the second The preset temperature is less than or equal to the first preset temperature.
  • the refrigeration device if the water temperature in the water tank is greater than the first preset temperature in the heat preservation state, the refrigeration device is controlled to perform the cooling operation at a preset time so that the water temperature is less than or equal to the second pre-heating Set the temperature.
  • the water temperature control is realized by the preset time, so that the water temperature of the cold water can be more accurately controlled, the water temperature and the energy consumption are more temperature, and the influence of the temperature control precision of the temperature controller is avoided.
  • the method when the refrigerating device is operated for the first time, before the controlling the refrigerating device enters the heat retaining state, the method further comprises: controlling the refrigerating device to perform a cooling operation; detecting a water temperature in the water tank; and when the water temperature is Less than the second preset temperature, the refrigeration device is controlled to stop the cooling operation.
  • the control refrigeration device enters the insurance
  • the temperature state further includes: detecting an initial water temperature in the water tank in the refrigeration device; determining an initial running time according to the initial water temperature, and controlling the refrigeration device to perform a cooling operation at the initial running time to make the water tank
  • the water temperature is less than the second preset temperature.
  • determining the initial running time according to the initial water temperature specifically includes: determining the initial running time according to a difference between the initial water temperature and the second preset temperature.
  • the cold water temperature control method of the refrigerating device when the refrigerating device enters a water use state, the cold water temperature control method of the refrigerating device further includes: detecting a water temperature in the water tank; if the water temperature in the water tank is greater than And controlling, by the preset temperature, the cooling device to perform a cooling operation, further determining whether the water temperature is less than the second preset temperature, and if so, controlling the refrigeration device to stop the cooling operation, and controlling the refrigeration device to enter The heat retention state, wherein the third preset temperature is greater than or equal to the first preset temperature.
  • a refrigerating apparatus includes: a water tank; a temperature detector for detecting a water temperature in the water tank; and a controller for controlling the refrigerating device to enter a heat retaining state, and acquiring the The water temperature in the water tank, if the water temperature is greater than the first preset temperature, the controller controls the refrigeration device to perform a cooling operation for a preset time so that the water temperature is less than the second preset temperature, and Controlling the refrigeration device to stop the cooling operation after the preset time, wherein the second preset temperature is less than or equal to the first preset temperature.
  • the controller controls the refrigeration device to perform the cooling operation for a preset time so that the water temperature is less than or equal to the second preset temperature.
  • the water temperature control is realized by the preset time, so that the water temperature of the cold water can be more accurately controlled, the water temperature and the energy consumption are more temperature, and the influence of the temperature control precision of the temperature controller is avoided.
  • the controller when the refrigeration device is first operated, the controller is further configured to: control the refrigeration device to perform a cooling operation, and detect the cooling device before the cooling device is controlled to enter the heat retention state.
  • the water temperature in the water tank when the water temperature is less than the second preset temperature, controlling the refrigeration device to stop the cooling operation.
  • the controller when the refrigeration device is first operated, is further configured to: acquire an initial water temperature in the water tank before controlling the refrigeration device to enter the heat preservation state, according to The initial water temperature determines an initial running time, and controls the refrigeration device to perform a cooling operation at the initial running time such that a water temperature in the water tank is less than the second preset temperature.
  • the controller is specifically configured to: determine the initial running time according to a difference between the initial water temperature and the second preset temperature.
  • the controller when the refrigerating device enters a water use state, is further configured to: acquire a water temperature in the water tank, and if the water temperature in the water tank is greater than a third preset temperature, control The refrigeration device performs a cooling operation to further determine whether the water temperature is less than the second preset temperature, and if so, controlling the refrigeration device to stop the cooling operation, and controlling the refrigeration device to enter the heat retention state, wherein The third preset temperature is large And equal to the first preset temperature.
  • FIG. 1 is a flow chart of a method for controlling a cold water temperature of a refrigeration apparatus according to an embodiment of the present invention
  • FIG. 2 is a flow chart of a method for controlling a cold water temperature of a refrigeration apparatus according to an embodiment of the present invention
  • FIG. 3 is a flow chart of a method for controlling a cold water temperature of a refrigeration apparatus according to another embodiment of the present invention.
  • FIG. 4 is a flow chart of a method for controlling a cold water temperature of a refrigeration apparatus according to still another embodiment of the present invention.
  • FIG. 5 is a block schematic diagram of a refrigeration apparatus in accordance with an embodiment of the present invention.
  • the water tank 10 The water tank 10, the temperature detector 20, and the controller 30.
  • the temperature control accuracy of the thermostat is affected by various factors such as the generated materials, production process and assembly. Specifically, the temperature control accuracy of the thermostat is specifically affected by the following factors:
  • the pressure thermostat is made according to the principle of thermal expansion and contraction, and the pressure thermostat connects or disconnects the contacts by pushing the action of its internal lever. In turn, the temperature control is realized. Therefore, the mechanical properties of the materials produced by the internal components of the pressure thermostat are directly related to the temperature control accuracy, but after the material performance is improved to a certain precision, it will be difficult to continue to improve.
  • NTC electronic temperature controller is made according to the principle of thermistor, so the temperature control accuracy of NTC electronic temperature controller is directly affected by the material purity of the thermistor itself. .
  • the mechanical working principle of the pressure thermostat determines that the temperature control accuracy is affected by the processing level in the production process, if the internal parts of the various parts are processed with high precision, the machine When the components move smoothly, the temperature control accuracy is high; otherwise, the temperature control accuracy is low.
  • the closeness of the thermostat's temperature sensing head to the structure of the controlled product affects the temperature control accuracy, and the temperature control accuracy is related to the assembly level of the worker.
  • the pressure type thermostat is difficult to improve the temperature control accuracy due to the limitation of the production materials, and the NTC electronic temperature controller is difficult to improve the temperature control accuracy due to the assembly error, so that the temperature control accuracy of the thermostat is difficult to improve, resulting in correlation.
  • the temperature control accuracy of the cold water temperature of the refrigeration unit is also difficult to improve.
  • the present invention proposes a cold water temperature control method of a refrigeration apparatus and a refrigeration apparatus.
  • the cold water temperature control method of the refrigeration device includes the following steps:
  • the control refrigeration device operates in a preset temperature interval, that is, the water temperature in the control water tank changes between the first preset temperature and the second preset temperature.
  • the energy change caused by the temperature change can be converted into the energy change caused by the time change.
  • the same refrigeration unit reaches the same preset temperature in the same cooling environment, and the required cooling time is constant. Therefore, the running time of the cooling operation can be set during product development, and the cooling operation can be set.
  • the running time makes the water temperature in the water tank reach the preset temperature, so that the water temperature control accuracy is not affected by various factors of the temperature controller.
  • the water temperature in the water tank can be detected in real time.
  • the control refrigeration device is switched from the stop cooling operation to the cooling operation, and enters the fixed time control mode.
  • the cooling device is controlled to stop the cooling operation, and the water temperature in the water tank will be less than the second preset temperature. More specifically, when the water temperature is greater than the first preset temperature, the compressor may be started, the refrigeration device performs a cooling operation, and the compressor is controlled to operate for a preset time, and after the preset time of the compressor operation, the compressor may be turned off, and the refrigeration device Stop the cooling operation.
  • the water temperature in the water tank is maintained at the second preset temperature.
  • the second preset temperature may be less than the first preset temperature, so that the compressor is frequently started and turned off by setting the hysteresis (the difference is the first preset temperature minus the difference of the second preset temperature), of course
  • the second preset temperature may also be equal to the first preset temperature.
  • the refrigeration device In the cold water temperature control method of the refrigeration device according to the embodiment of the present invention, if the water temperature in the water tank is greater than the first preset temperature in the heat preservation state, the refrigeration device is controlled to perform the cooling operation at a preset time so that the water temperature is less than or equal to the second preset. temperature. Thereby, the water temperature control is realized by the preset time, so that the water temperature of the cold water can be more accurately controlled, the water temperature and the energy consumption are more temperature, and the influence of the temperature control precision of the temperature controller is avoided.
  • the method when the refrigeration device is first operated, before the control refrigeration device enters the heat preservation state, the method further includes:
  • the refrigeration device when the refrigeration device is powered on for the first time, the refrigeration device is controlled to perform the cooling operation, and the compressor can be started to detect the water temperature in the water tank in real time. At this time, the time can be ignored, and when the water temperature is lower than the second preset temperature, the cooling is controlled.
  • the device stops the cooling operation, specifically shuts down the compressor, and controls the refrigeration device to enter the heat preservation state.
  • the method when the refrigeration device is first operated, before the control refrigeration device enters the heat preservation state, the method further includes:
  • S200 Determine an initial running time according to the initial water temperature, and control the cooling device to perform a cooling operation with an initial running time so that the water temperature in the water tank is less than a second preset temperature.
  • the cooling device is controlled to start the cooling operation.
  • the cooling device is controlled to stop the cooling operation, and the water temperature in the water tank will be less than the second preset temperature.
  • the compressor can be started to control the initial running time of the compressor. After the initial operating time of the compressor, the compressor can be turned off, the refrigeration device stops the cooling operation, and the refrigeration device is controlled to enter the holding state.
  • determining the initial running time according to the initial water temperature specifically includes: determining an initial running time according to a difference between the initial water temperature and the second preset temperature.
  • the initial running time may be determined only according to the initial water temperature, and the different initial water temperatures correspond to different initial running times, and the initial water temperature may be pre-stored in the refrigeration device.
  • a table of relationships between initial run times When the second preset temperature is set by the user, the initial running time may be determined only according to the difference, and the different difference corresponds to different initial running time, and the initial water temperature and the second preset temperature may be pre-stored in the refrigeration device. A table of the relationship between the difference and the initial run time.
  • the cold water temperature control method of the refrigerating device when the refrigerating device enters the water state, the cold water temperature control method of the refrigerating device further includes:
  • the cold water in the water tank will flow out from the water outlet of the refrigeration device, and the refrigeration device will enter the water state, and the water temperature in the water tank will rise at a faster speed, when the water temperature in the water tank rises to the third place.
  • the compressor can be started, the refrigeration device can be controlled for cooling operation, and the water temperature in the water tank can be detected in real time. There is no time limit for the cooling operation.
  • the refrigeration device is controlled to stop the cooling operation.
  • the compressor is turned off and the refrigeration unit is controlled to enter a holding state.
  • the refrigeration device is directly controlled to enter the heat preservation state.
  • an embodiment of the present invention also proposes a refrigeration apparatus.
  • FIG. 5 is a block schematic diagram of a refrigeration apparatus in accordance with an embodiment of the present invention.
  • the refrigeration apparatus includes a water tank 10, a temperature detector 20, and a controller 30.
  • the temperature detector 20 is configured to detect the temperature of the water in the water tank 10; the controller 30 is connected to the temperature detector, and the controller 30 is configured to control the refrigeration device to enter the heat preservation state, and obtain the water temperature in the water tank 10, if the water temperature is greater than the first
  • the controller 30 controls the refrigeration device to perform the cooling operation for a preset time so that the water temperature is lower than the second preset temperature, and controls the refrigeration device to stop the cooling operation after the preset time, wherein the second preset temperature is less than or equal to the first A preset temperature.
  • the controller 30 controls the refrigeration device to operate within a preset temperature interval, that is, controls the water temperature in the water tank at the first preset temperature and the second preset temperature. Change between.
  • the energy change caused by the temperature change can be converted into the energy change caused by the time change.
  • the same refrigeration unit reaches the same preset temperature in the same cooling environment, and the required cooling time is constant. Therefore, the running time of the cooling operation can be set during product development, and the cooling operation can be set.
  • the running time makes the water temperature in the water tank reach the preset temperature, so that the water temperature control accuracy is not affected by various factors of the temperature controller.
  • the controller 30 can obtain the water temperature in the water tank 10 in real time.
  • the controller 30 controls the refrigeration device to switch from the stop cooling operation to the cooling operation.
  • the controller 30 controls the refrigeration device to stop the cooling operation, and the water temperature in the water tank will be less than the second preset temperature. More specifically, when the water temperature is greater than the first preset temperature, the controller 30 may start the compressor, the refrigeration device performs the cooling operation, and controls the compressor to operate for a preset time. After the preset time of the compressor operation, the controller 30 may The compressor is turned off and the refrigeration unit stops the cooling operation.
  • the water temperature in the water tank is maintained at the second preset temperature.
  • the second preset temperature may be less than the first preset temperature, so that the compressor is frequently started and turned off by setting the hysteresis (the difference is the first preset temperature minus the difference of the second preset temperature), of course
  • the second preset temperature may also be equal to the first preset temperature.
  • the controller 30 controls the refrigeration device to perform the cooling operation at a preset time so that the water temperature is less than or equal to the second preset temperature. .
  • the water temperature control is realized by the preset time, so that the water temperature of the cold water can be controlled more accurately, the water temperature and the energy consumption are more Temperature to avoid the influence of temperature control accuracy of the thermostat.
  • the controller 30 when the refrigeration device is operated for the first time, the controller 30 is further configured to: control the refrigeration device to perform the cooling operation, and detect the water temperature in the water tank 10, when the water temperature is less than the second, before controlling the refrigeration device to enter the heat preservation state.
  • the preset temperature controls the refrigeration unit to stop the cooling operation.
  • the controller 30 controls the refrigeration device to perform the cooling operation, specifically, the compressor can be started to detect the water temperature in the water tank 10 in real time, and the time is not considered, when the water temperature is less than the second preset temperature.
  • the controller 30 controls the refrigeration device to stop the cooling operation, specifically shuts down the compressor, and controls the refrigeration device to enter the heat preservation state.
  • the controller 30 when the refrigeration device is first operated, the controller 30 is further configured to: obtain an initial water temperature in the water tank 10, determine an initial water temperature according to the initial water temperature, and control the cooling device before entering the heat preservation state.
  • the refrigeration unit performs a cooling operation with an initial operating time such that the water temperature in the water tank 10 is less than the second predetermined temperature.
  • the controller 30 when the refrigeration device is powered on for the first time, the controller 30 first acquires the water temperature in the water tank to obtain the initial water temperature, and then the controller 30 determines the running time of the first cooling operation, that is, the initial running time according to the initial water temperature, and finally, the controller The control refrigeration unit starts the cooling operation. After the initial operation time, the controller 30 controls the refrigeration device to stop the cooling operation, and the water temperature in the water tank will be less than the second preset temperature. More specifically, the controller 30 can start the compressor to control the initial running time of the compressor. After the initial running time of the compressor, the controller 30 can shut down the compressor, the cooling device stops the cooling operation, and controls the cooling device to enter the holding state. .
  • the controller 30 is specifically configured to: determine an initial running time according to a difference between an initial water temperature and a second preset temperature.
  • the initial running time may be determined only according to the initial water temperature, and the different initial water temperatures correspond to different initial running times, and the initial water temperature may be pre-stored in the controller 30.
  • a table of relationships with initial run time When the second preset temperature is set by the user, the initial running time may be determined only according to the difference, and different difference values correspond to different initial running times, and the initial water temperature and the second preset temperature may be pre-stored in the controller 30.
  • the controller 30 when the refrigerating device enters the water use state, the controller 30 is further configured to: obtain the water temperature in the water tank 10, and control the cooling if the water temperature in the water tank 10 is greater than the third preset temperature.
  • the device performs a cooling operation to further determine whether the water temperature is less than a second preset temperature. If yes, the cooling device is controlled to stop the cooling operation, and the cooling device is controlled to enter a heat retention state, wherein the third preset temperature is greater than or equal to the first preset temperature.
  • the controller 30 can start the compressor, control the refrigeration device to perform the cooling operation, and obtain the water temperature in the water tank in real time. There is no time limit for the cooling operation.
  • the controller 30 only Control refrigeration system stop system Cold operation, and shut down the compressor to control the refrigeration unit to enter the insulation state.
  • the controller 30 directly controls the refrigeration device to enter the heat preservation state.
  • first and second are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated.
  • features defining “first” or “second” may include at least one of the features, either explicitly or implicitly.
  • the meaning of "a plurality” is at least two, such as two, three, etc., unless specifically defined otherwise.
  • the terms “installation”, “connected”, “connected”, “fixed” and the like shall be understood broadly, and may be either a fixed connection or a detachable connection, unless explicitly stated and defined otherwise. , or integrated; can be mechanical or electrical connection; can be directly connected, or indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction of two elements, unless otherwise specified Limited.
  • the specific meanings of the above terms in the present invention can be understood on a case-by-case basis.
  • the first feature "on” or “under” the second feature may be a direct contact of the first and second features, or the first and second features may be indirectly through an intermediate medium, unless otherwise explicitly stated and defined. contact.
  • the first feature "above”, “above” and “above” the second feature may be that the first feature is directly above or above the second feature, or merely that the first feature level is higher than the second feature.
  • the first feature “below”, “below” and “below” the second feature may be that the first feature is directly below or obliquely below the second feature, or merely that the first feature level is less than the second feature.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)

Abstract

提供了一种制冷装置和制冷装置的冷水温度控制方法，该控制方法包括以下步骤：控制制冷装置进入保温状态（S1）；检测制冷装置中水箱（10）内的水温（S2）；如果水温大于第一预设温度，则控制制冷装置以预设时间进行制冷运行以使水温小于第二预设温度，并在预设时间后控制制冷装置停止制冷运行（S3），其中第二预设温度小于或等于第一预设温度。通过预设时间实现水温控制，从而能够更加精确的控制冷水的水温。

Description

制冷装置和制冷装置的冷水温度控制方法 技术领域
本发明涉及家用电器技术领域，特别涉及一种制冷装置的冷水温度控制方法和一种制冷装置。
背景技术
相关的制冷装置大多通过温控器对冷水的温度进行控制，其中，温控器分为压力式温控器及NTC(Negative Temperature Coefficient，负的温度系数)电子温控器。相关温控器的温控精度通常在1.5到2摄氏度之间，而冷水一般只有3到5摄氏度的温度波动，这样对于冷水的温度控制，温控器的温控精度难以实现冷水温度的高精度控制，并且温控器的温控精度难以提高，导致相关制冷装置冷水温度的控制精度也难以提高。
因此，相关技术存在改进的需要。
发明内容
本发明旨在至少在一定程度上解决相关技术中的技术问题之一。为此，本发明的一个目的在于提出一种制冷装置的冷水温度控制方法，该方法能够更加精确的控制冷水的水温，避免温控器温控精度的影响。
本发明的另一个目的在于提出一种制冷装置。
根据本发明一方面实施例提出的制冷装置的冷水温度控制方法，包括以下步骤：控制制冷装置进入保温状态；检测所述制冷装置中水箱内的水温；如果所述水温大于第一预设温度，则控制所述制冷装置以预设时间进行制冷运行以使所述水温小于所述第二预设温度，并在所述预设时间后控制所述制冷装置停止制冷运行，其中，所述第二预设温度小于等于所述第一预设温度。
根据本发明实施例的制冷装置的冷水温度控制方法，在保温状态下，如果水箱内的水温大于第一预设温度，则控制制冷装置以预设时间进行制冷运行以使水温小于等于第二预设温度。由此，通过预设时间实现水温控制，从而能够更加精确的控制冷水的水温，水温和能耗更加温度，避免温控器温控精度的影响。
根据本发明的一个实施例，当所述制冷装置首次运行时，所述控制制冷装置进入保温状态之前还包括：控制所述制冷装置进行制冷运行；检测所述水箱内的水温；当所述水温小于所述第二预设温度，控制所述制冷装置停止制冷运行。
根据本发明的另一个实施例，当所述制冷装置首次运行时，所述控制制冷装置进入保 温状态之前还包括：检测所述制冷装置中水箱内的初始水温；根据所述初始水温确定初始运行时间，并控制所述制冷装置以所述初始运行时间进行制冷运行以使所述水箱内的水温小于所述第二预设温度。
具体地，根据所述初始水温确定初始运行时间具体包括：根据所述初始水温和所述第二预设温度之间的差值确定所述初始运行时间。
进一步地，根据本发明的一些实施例，当所述制冷装置进入用水状态时，所述制冷装置的冷水温度控制方法还包括：检测所述水箱内的水温；如果所述水箱内的水温大于第三预设温度，则控制所述制冷装置进行制冷运行，进一步判断所述水温是否小于所述第二预设温度，如果是，则控制所述制冷装置停止制冷运行，并控制所述制冷装置进入所述保温状态，其中，所述第三预设温度大于等于所述第一预设温度。
根据本发明另一方面实施例提出的制冷装置，包括：水箱；温度检测器，用于检测所述水箱内的水温；控制器，所述控制器用于控制制冷装置进入保温状态，并获取所述水箱内的水温，如果所述水温大于第一预设温度，则所述控制器控制所述制冷装置以预设时间进行制冷运行以使所述水温小于所述第二预设温度，并在所述预设时间后控制所述制冷装置停止制冷运行，其中，所述第二预设温度小于等于所述第一预设温度。
根据本发明实施例的制冷装置，在保温状态下，如果水箱内的水温大于第一预设温度，则控制器控制制冷装置以预设时间进行制冷运行以使水温小于等于第二预设温度。由此，通过预设时间实现水温控制，从而能够更加精确的控制冷水的水温，水温和能耗更加温度，避免温控器温控精度的影响。
根据本发明的一个实施例，当所述制冷装置首次运行时，所述控制器在控制所述制冷装置进入所述保温状态之前，还用于：控制所述制冷装置进行制冷运行，检测所述水箱内的水温，当所述水温小于所述第二预设温度，控制所述制冷装置停止制冷运行。
根据本发明的另一个实施例，当所述制冷装置首次运行时，所述控制器在控制所述制冷装置进入所述保温状态之前，还用于：获取所述水箱内的初始水温，根据所述初始水温确定初始运行时间，并控制所述制冷装置以所述初始运行时间进行制冷运行以使所述水箱内的水温小于所述第二预设温度。
具体地，所述控制器具体用于：根据所述初始水温和所述第二预设温度之间的差值确定所述初始运行时间。
根据本发明的一个实施例，当所述制冷装置进入用水状态时，所述控制器还用于：获取所述水箱内的水温，如果所述水箱内的水温大于第三预设温度，则控制所述制冷装置进行制冷运行，进一步判断所述水温是否小于所述第二预设温度，如果是，则控制所述制冷装置停止制冷运行，并控制所述制冷装置进入所述保温状态，其中，所述第三预设温度大 于等于所述第一预设温度。
附图说明
图1是根据本发明实施例的制冷装置的冷水温度控制方法流程图；
图2是根据本发明一个实施例的制冷装置的冷水温度控制方法流程图；
图3是根据本发明另一个实施例的制冷装置的冷水温度控制方法流程图；
图4是根据本发明又一个实施例的制冷装置的冷水温度控制方法流程图；以及
图5是根据本发明实施例的制冷装置的方框示意图。
附图标记：
水箱10、温度检测器20和控制器30。
具体实施方式
下面详细描述本发明的实施例，所述实施例的示例在附图中示出，其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施例是示例性的，旨在用于解释本发明，而不能理解为对本发明的限制。
下面先对影响温控器温控精度的因素进行简单描述。
温控器的温控精度受生成材料、生产工艺及装配等各方面因素的影响，具体来说，温控器的温控精度具体受以下因素的影响：
1、生产材料。
以压力式温控器本身的生产材料为例，压力式温控器是根据热胀冷缩的原理制作而成的，压力式温控器通过推动其内部杠杆的动作使触点连通或断开，进而实现温度控制，由此，压力式温控器内部构件生产材料的力学性能直接关系到温控精度，但材料性能提高到一定精度后，将难以继续提高。
以NTC电子温控器本身的生产材料为例，NTC电子温控器是根据热敏电阻的原理制作而成的，所以NTC电子温控器的温控精度直接由热敏电阻本身的材料纯度影响。
2、生产工艺。
以压力式温控器本身的生产工艺为例，压力式温控器的机械工作原理决定了其温控精度是受生产过程中的加工水平影响，如果其内部的各种部件加工精度高、机器部件动作顺滑，则其温控精度高；否则，温控精度低。
3、装配。
温控器的感温头与所控制产品结构接触的紧密程度影响温控精度，同时温控精度与工人的装配水平有关。
由此，压力式温控器受生产材料的限制难以提高温控精度，而NTC电子温控器受装配误差的限制也难以提高温控精度，从而温控器的温控精度难以提高，导致相关制冷装置冷水温度的温控精度也难以提高。
基于此，本发明提出了一种制冷装置的冷水温度控制方法和一种制冷装置。
下面参考附图1-5来描述本发明实施例的制冷装置的冷水温度控制方法和制冷装置。
图1是根据本发明实施例的制冷装置的冷水温度控制方法流程图。如图1所示，该制冷装置的冷水温度控制方法包括以下步骤：
S1：控制制冷装置进入保温状态。
S2：检测制冷装置中水箱内的水温。
S3：如果水温大于第一预设温度，则控制制冷装置以预设时间进行制冷运行以使水温小于第二预设温度，并在预设时间后控制制冷装置停止制冷运行，其中，第二预设温度小于等于第一预设温度。
也就是说，在制冷装置进入保温状态之后，如果没人用水，则控制制冷装置在预设温度区间内运行，即控制水箱内的水温在第一预设温度和第二预设温度之间变化。
需要进行说明的，根据能量守恒原理，可将温度变化所产生的能量变化转变为时间变化产生的能量变化。这样，同一个制冷装置在同一个制冷环境下达到相同的预设温度，所需的制冷时间是一定的，由此，在产品开发时可设定好制冷运行的运行时间，通过设定制冷运行的运行时间使水箱内的水温达到预设温度，从而避免水温控制精度受到温控器各种因素的影响。
在制冷装置运行过程中，在保温状态下，可实时检测水箱内的水温，当水温大于第一预设温度时，控制制冷装置由停止制冷运行切换为进行制冷运行，进入固定时间控制模式，在运行预设时间后，控制制冷装置停止制冷运行，此时水箱内的水温将会小于第二预设温度。更具体地，当水温大于第一预设温度时，可启动压缩机，制冷装置进行制冷运行，并控制压缩机运行预设时间，在压缩机运行预设时间后，可关闭压缩机，制冷装置停止制冷运行。
这样，在保温状态下，将水箱内的水温保持在第二预设温度。其中，第二预设温度可小于第一预设温度，从而通过设置回差(回差为第一预设温度减去第二预设温度的差值)可避免压缩机频繁启动和关闭，当然第二预设温度也可等于第一预设温度。
本发明实施例的制冷装置的冷水温度控制方法，在保温状态下，如果水箱内的水温大于第一预设温度，则控制制冷装置以预设时间进行制冷运行以使水温小于等于第二预设温度。由此，通过预设时间实现水温控制，从而能够更加精确的控制冷水的水温，水温和能耗更加温度，避免温控器温控精度的影响。
根据本发明的一个实施例，如图2所示，当制冷装置首次运行时，控制制冷装置进入保温状态之前还包括：
S10：控制制冷装置进行制冷运行。
S20：检测水箱内的水温。
S30：当水温小于第二预设温度，控制制冷装置停止制冷运行。
也就是说，当制冷装置首次上电时，控制制冷装置进行制冷运行，具体可启动压缩机，实时检测水箱内的水温，此时可不考虑时间，当水温小于第二预设温度，才控制制冷装置停止制冷运行，具体可关闭压缩机，并且控制制冷装置进入保温状态。
根据本发明的另一个实施例，如图3所示，当制冷装置首次运行时，控制制冷装置进入保温状态之前还包括：
S100：检测制冷装置中水箱内的初始水温。
S200：根据初始水温确定初始运行时间，并控制制冷装置以初始运行时间进行制冷运行以使水箱内的水温小于第二预设温度。
也就是说，当制冷装置首次上电时，先检测水箱内的水温以获得初始水温，然后根据初始水温确定首次进行制冷运行的运行时间即初始运行时间，最后，控制制冷装置开始进行制冷运行，在运行初始运行时间后，控制制冷装置停止制冷运行，此时水箱内的水温将会小于第二预设温度。更具体地，可启动压缩机，控制压缩机运行初始运行时间，在压缩机运行初始运行时间后，可关闭压缩机，制冷装置停止制冷运行，并且控制制冷装置进入保温状态。
具体地，根据本发明的一个实施例，根据初始水温确定初始运行时间具体包括：根据初始水温和第二预设温度之间的差值确定初始运行时间。
其中，需要说明的是，当第二预设温度固定不变时，可仅根据初始水温确定初始运行时间，并且不同的初始水温对应不同的初始运行时间，可在制冷装置中预先存储初始水温与初始运行时间之间的关系表。当第二预设温度可由用户设定时，可仅根据差值确定初始运行时间，不同的差值对应不同的初始运行时间，可在制冷装置中预先存储初始水温和第二预设温度之间的差值与初始运行时间之间的关系表。
进一步地，根据本发明的又一个实施例，如图4所示，当制冷装置进入用水状态时，制冷装置的冷水温度控制方法还包括：
S4：检测水箱内的水温。
S5：如果水箱内的水温大于第三预设温度，则控制制冷装置进行制冷运行，进一步判断水温是否小于第二预设温度，如果是，则控制制冷装置停止制冷运行，并控制制冷装置进入保温状态，其中，第三预设温度大于等于第一预设温度。
也就是说，当用户用水时，水箱内的冷水将会从制冷装置的出水口流出，制冷装置进入用水状态，水箱内的水温将以较快的速度上升，当水箱内的水温上升到第三预设温度时，可启动压缩机，控制制冷装置进行制冷运行，并实时检测水箱内的水温，此次制冷运行没有时间限制，当水温小于第二预设温度，才控制制冷装置停止制冷运行，关闭压缩机，并且控制制冷装置进入保温状态。当然，如果用户用水结束后，水箱内的水温未上升到第三预设温度，则直接控制制冷装置进入保温状态。
为了实现上述的实施例，本发明实施例还提出了一种制冷装置。
图5是根据本发明实施例的制冷装置的方框示意图。如图5所示，该制冷装置包括：水箱10、温度检测器20和控制器30。
其中，温度检测器20用于检测水箱10内的水温；控制器30与温度检测器相连，控制器30用于控制制冷装置进入保温状态，并获取水箱10内的水温，如果水温大于第一预设温度，则控制器30控制制冷装置以预设时间进行制冷运行以使水温小于第二预设温度，并在预设时间后控制制冷装置停止制冷运行，其中，第二预设温度小于等于第一预设温度。也就是说，在制冷装置进入保温状态之后，如果没人用水，则控制器30控制制冷装置在预设温度区间内运行，即控制水箱内的水温在第一预设温度和第二预设温度之间变化。
需要进行说明的，根据能量守恒原理，可将温度变化所产生的能量变化转变为时间变化产生的能量变化。这样，同一个制冷装置在同一个制冷环境下达到相同的预设温度，所需的制冷时间是一定的，由此，在产品开发时可设定好制冷运行的运行时间，通过设定制冷运行的运行时间使水箱内的水温达到预设温度，从而避免水温控制精度受到温控器各种因素的影响。
在制冷装置运行过程中，在保温状态下，控制器30可实时获取水箱10内的水温，当水温大于第一预设温度时，控制器30控制制冷装置由停止制冷运行切换为进行制冷运行，进入固定时间控制模式，在运行预设时间后，控制器30控制制冷装置停止制冷运行，此时水箱内的水温将会小于第二预设温度。更具体地，当水温大于第一预设温度时，控制器30可启动压缩机，制冷装置进行制冷运行，并控制压缩机运行预设时间，在压缩机运行预设时间后，控制器30可关闭压缩机，制冷装置停止制冷运行。
这样，在保温状态下，将水箱内的水温保持在第二预设温度。其中，第二预设温度可小于第一预设温度，从而通过设置回差(回差为第一预设温度减去第二预设温度的差值)可避免压缩机频繁启动和关闭，当然第二预设温度也可等于第一预设温度。
本发明实施例的制冷装置，在保温状态下，如果水箱10内的水温大于第一预设温度，则控制器30控制制冷装置以预设时间进行制冷运行以使水温小于等于第二预设温度。由此，通过预设时间实现水温控制，从而能够更加精确的控制冷水的水温，水温和能耗更加 温度，避免温控器温控精度的影响。
根据本发明的一个实施例，当制冷装置首次运行时，控制器30在控制制冷装置进入保温状态之前，还用于：控制制冷装置进行制冷运行，检测水箱10内的水温，当水温小于第二预设温度，控制制冷装置停止制冷运行。
也就是说，当制冷装置首次上电时，控制器30控制制冷装置进行制冷运行，具体可启动压缩机，实时检测水箱10内的水温，此时可不考虑时间，当水温小于第二预设温度，控制器30才控制制冷装置停止制冷运行，具体可关闭压缩机，并且控制制冷装置进入保温状态。
根据本发明的另一个实施例，当制冷装置首次运行时，控制器30在控制制冷装置进入保温状态之前，还用于：获取水箱10内的初始水温，根据初始水温确定初始运行时间，并控制制冷装置以初始运行时间进行制冷运行以使水箱10内的水温小于第二预设温度。
也就是说，当制冷装置首次上电时，控制器30先获取水箱内的水温以获得初始水温，然后控制器30根据初始水温确定首次进行制冷运行的运行时间即初始运行时间，最后，控制器30控制制冷装置开始进行制冷运行，在运行初始运行时间后，控制器30控制制冷装置停止制冷运行，此时水箱内的水温将会小于第二预设温度。更具体地，控制器30可启动压缩机，控制压缩机运行初始运行时间，在压缩机运行初始运行时间后，控制器30可关闭压缩机，制冷装置停止制冷运行，并且控制制冷装置进入保温状态。
具体地，根据本发明的一个实施例，控制器30具体用于：根据初始水温和第二预设温度之间的差值确定初始运行时间。
其中，需要说明的是，当第二预设温度固定不变时，可仅根据初始水温确定初始运行时间，并且不同的初始水温对应不同的初始运行时间，可在控制器30中预先存储初始水温与初始运行时间之间的关系表。当第二预设温度可由用户设定时，可仅根据差值确定初始运行时间，不同的差值对应不同的初始运行时间，可在控制器30中预先存储初始水温和第二预设温度之间的差值与初始运行时间之间的关系表。
进一步地，根据本发明的又一个实施例，当制冷装置进入用水状态时，控制器30还用于：获取水箱10内的水温，如果水箱10内的水温大于第三预设温度，则控制制冷装置进行制冷运行，进一步判断水温是否小于第二预设温度，如果是，则控制制冷装置停止制冷运行，并控制制冷装置进入保温状态，其中，第三预设温度大于等于第一预设温度。
也就是说，当用户用水时，水箱10内的冷水将会从制冷装置的出水口流出，制冷装置进入用水状态，水箱内的水温将以较快的速度上升，当水箱内的水温上升到第三预设温度时，控制器30可启动压缩机，控制制冷装置进行制冷运行，并实时获取水箱内的水温，此次制冷运行没有时间限制，当水温小于第二预设温度，控制器30才控制制冷装置停止制 冷运行，并关闭压缩机，控制制冷装置进入保温状态。当然，如果用户用水结束后，水箱内的水温未上升到第三预设温度，则控制器30直接控制制冷装置进入保温状态。
在本发明的描述中，需要理解的是，术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”“内”、“外”、“顺时针”、“逆时针”、“轴向”、“径向”、“周向”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。
此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个该特征。在本发明的描述中，“多个”的含义是至少两个，例如两个，三个等，除非另有明确具体的限定。
在本发明中，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”、“固定”等术语应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或成一体；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系，除非另有明确的限定。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本发明中的具体含义。
在本发明中，除非另有明确的规定和限定，第一特征在第二特征“上”或“下”可以是第一和第二特征直接接触，或第一和第二特征通过中间媒介间接接触。而且，第一特征在第二特征“之上”、“上方”和“上面”可是第一特征在第二特征正上方或斜上方，或仅仅表示第一特征水平高度高于第二特征。第一特征在第二特征“之下”、“下方”和“下面”可以是第一特征在第二特征正下方或斜下方，或仅仅表示第一特征水平高度小于第二特征。
在本说明书的描述中，参考术语“一个实施例”、“一些实施例”、“示例”、“具体示例”、或“一些示例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本发明的至少一个实施例或示例中。在本说明书中，对上述术语的示意性表述不必须针对的是相同的实施例或示例。而且，描述的具体特征、结构、材料或者特点可以在任一个或多个实施例或示例中以合适的方式结合。此外，在不相互矛盾的情况下，本领域的技术人员可以将本说明书中描述的不同实施例或示例以及不同实施例或示例的特征进行结合和组合。
尽管上面已经示出和描述了本发明的实施例，可以理解的是，上述实施例是示例性的，不能理解为对本发明的限制，本领域的普通技术人员在本发明的范围内可以对上述实施例 进行变化、修改、替换和变型。

Claims (10)

  1. 一种制冷装置的冷水温度控制方法，其特征在于，包括以下步骤：
    控制制冷装置进入保温状态；
    检测所述制冷装置中水箱内的水温；
    如果所述水温大于第一预设温度，则控制所述制冷装置以预设时间进行制冷运行以使所述水温小于所述第二预设温度，并在所述预设时间后控制所述制冷装置停止制冷运行，其中，所述第二预设温度小于等于所述第一预设温度。
  2. 如权利要求1所述的制冷装置的冷水温度控制方法，其特征在于，当所述制冷装置首次运行时，在控制所述制冷装置进入保温状态之前，还包括：
    控制所述制冷装置进行制冷运行；
    检测所述水箱内的水温；
    当所述水温小于所述第二预设温度，控制所述制冷装置停止制冷运行。
  3. 如权利要求1所述的制冷装置的冷水温度控制方法，其特征在于，当所述制冷装置首次运行时，在控制所述制冷装置进入保温状态之前，还包括：
    检测所述制冷装置中水箱内的初始水温；
    根据所述初始水温确定初始运行时间，并控制所述制冷装置以所述初始运行时间进行制冷运行以使所述水箱内的水温小于所述第二预设温度。
  4. 如权利要求3所述的制冷装置的冷水温度控制方法，其特征在于，根据所述初始水温确定初始运行时间具体包括：
    根据所述初始水温和所述第二预设温度之间的差值确定所述初始运行时间。
  5. 如权利要求1所述的制冷装置的冷水温度控制方法，其特征在于，当所述制冷装置进入用水状态时，所述制冷装置的冷水温度控制方法还包括：
    检测所述水箱内的水温；
    如果所述水箱内的水温大于第三预设温度，则控制所述制冷装置进行制冷运行，进一步判断所述水温是否小于所述第二预设温度，如果是，则控制所述制冷装置停止制冷运行，并控制所述制冷装置进入所述保温状态，其中，所述第三预设温度大于等于所述第一预设温度。
  6. 一种制冷装置，其特征在于，包括：
    水箱；
    温度检测器，用于检测所述水箱内的水温；
    控制器，所述控制器用于控制制冷装置进入保温状态，并获取所述水箱内的水温，如 果所述水温大于第一预设温度，则所述控制器控制所述制冷装置以预设时间进行制冷运行以使所述水温小于所述第二预设温度，并在所述预设时间后控制所述制冷装置停止制冷运行，其中，所述第二预设温度小于等于所述第一预设温度。
  7. 如权利要求6所述的制冷装置，其特征在于，当所述制冷装置首次运行时，所述控制器在控制所述制冷装置进入所述保温状态之前，还用于：
    控制所述制冷装置进行制冷运行，检测所述水箱内的水温，当所述水温小于所述第二预设温度，控制所述制冷装置停止制冷运行。
  8. 如权利要求6所述的制冷装置，其特征在于，当所述制冷装置首次运行时，所述控制器在控制所述制冷装置进入所述保温状态之前，还用于：
    获取所述水箱内的初始水温，根据所述初始水温确定初始运行时间，并控制所述制冷装置以所述初始运行时间进行制冷运行以使所述水箱内的水温小于所述第二预设温度。
  9. 如权利要求8所述的制冷装置，其特征在于，所述控制器具体用于：根据所述初始水温和所述第二预设温度之间的差值确定所述初始运行时间。
  10. 如权利要求6所述的制冷装置，其特征在于，当所述制冷装置进入用水状态时，所述控制器还用于：
    获取所述水箱内的水温，如果所述水箱内的水温大于第三预设温度，则控制所述制冷装置进行制冷运行，进一步判断所述水温是否小于所述第二预设温度，如果是，则控制所述制冷装置停止制冷运行，并控制所述制冷装置进入所述保温状态，其中，所述第三预设温度大于等于所述第一预设温度。
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