WO2019047564A1 - 带风门的多温区制冷结构、及其控制方法 - Google Patents

带风门的多温区制冷结构、及其控制方法 Download PDF

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Publication number
WO2019047564A1
WO2019047564A1 PCT/CN2018/088477 CN2018088477W WO2019047564A1 WO 2019047564 A1 WO2019047564 A1 WO 2019047564A1 CN 2018088477 W CN2018088477 W CN 2018088477W WO 2019047564 A1 WO2019047564 A1 WO 2019047564A1
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Prior art keywords
temperature
zone
air
temperature zone
damper
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PCT/CN2018/088477
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English (en)
French (fr)
Inventor
滕春华
李京度
盛庆赫
任伟
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合肥美的电冰箱有限公司
合肥华凌股份有限公司
美的集团股份有限公司
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Publication of WO2019047564A1 publication Critical patent/WO2019047564A1/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
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
    • F25D11/02—Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different 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
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
    • F25D17/062—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation in household refrigerators
    • F25D17/065—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation in household refrigerators with compartments at different 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
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
    • F25D21/04—Preventing the formation of frost or condensate
    • 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
    • F25D29/003—Arrangement or mounting of control or safety devices for movable devices
    • 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
    • F25D2201/00—Insulation
    • F25D2201/10—Insulation with respect to heat
    • F25D2201/12—Insulation with respect to heat using an insulating packing material
    • 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
    • F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
    • F25D2317/06—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation
    • F25D2317/065—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by the air return
    • F25D2317/0651—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by the air return through the bottom

Definitions

  • the invention relates to the field of refrigeration, in particular to a multi-temperature zone refrigeration structure with a damper and a control method thereof.
  • the freezing of the refrigerator has a dual temperature zone.
  • the temperature range independently controlled by each temperature zone is generally soft freezing (such as -18 ⁇ 7 ° C) and ordinary freezing (above -26 ° C), but no deep cooling, such as below -30 ° C. Warm zone.
  • Some products have a deep-cooling zone, but there is only one temperature zone in one compartment, either an ordinary freezing zone or a deep-cooling zone; and in order to avoid setting the deep-cold temperature zone, the temperature difference between the inside and the outside of the cabinet and the environment is too large, that is, the environment.
  • the temperature difference between the temperature and the internal temperature of the cabinet the greater the temperature difference, the greater the power consumption, the greater the condensation, the higher the requirements for heat preservation, and the condensation and power consumption increase the risk of product use, so it is necessary to increase the refrigerator.
  • Additional foam layer and anti-condensation measures resulting in increased cost of the overall material cost of the refrigerator and structural complexity, while the refrigerator is equipped with a common freezing temperature zone (more probability for users), resulting in structural redundancy I and waste.
  • the object of the present invention is to provide a multi-temperature zone refrigeration structure with a damper and a control method thereof, thereby realizing the beneficial effects of low energy consumption and independent control in the multi-temperature zone.
  • the present invention provides a multi-temperature zone refrigeration structure with a damper, comprising a box body and a door body, the door body covering an opening of the box body; and two or more temperatures are arranged in the box body a zone having a relatively low temperature zone surrounded by a relatively high temperature zone, the zone having the lowest temperature being closest to the evaporator of the refrigeration structure; the zone comprising: a cryogenic zone, a conventional freezing zone, and/or soft freezing;
  • each of the airflow paths is connected to the air ducts in the cabinet through the damper; the evaporator is placed in the air duct; and each temperature zone is provided with a temperature measuring component.
  • an airflow drive structure is provided within the air duct that drives airflow to each of the dampers.
  • the airflow drive structure is downstream of the evaporator, upstream of the damper.
  • the airflow drive structure comprises a fan.
  • the damper is disposed in the air duct, and the air duct is divided by the damper into a plurality of air outlet chambers that communicate different air flow paths.
  • each of the temperature zones is separated from the adjacent air duct by a thermal insulation layer.
  • the temperature zone having the lowest temperature is provided with a heat insulating layer on the other side except for the side close to the evaporator.
  • the same temperature zone at different locations of the tank communicates through the airflow path.
  • each of the airflow paths communicates with the air duct through more than one air outlet and one or more air return ports.
  • the refrigeration structure comprises: a refrigerator or a freezer.
  • the air duct is disposed near a side of the casing of the refrigerating structure, and the temperature zone includes a second temperature zone and a first temperature zone disposed in the casing, the first The temperature zone is surrounded by the second temperature zone, one side of the second temperature zone is close to the evaporator in the air channel, and the temperature of the second temperature zone is lower than the first temperature zone.
  • all of the first temperature zones are connected in a tank through an air flow path, a part of the first temperature zone is connected to the air duct through the air duct air outlet, and another part of the first temperature zone is returned through the air duct.
  • the tuyere is connected to the air duct.
  • the second temperature zone has a second air duct air outlet near the upper portion of the side wall of the air duct, and a second air duct air return port, the second air duct is opened at the lower portion.
  • the air outlet and the second air duct return air are connected to the air duct.
  • the invention also provides a control method for a multi-zone cooling structure with a damper, comprising:
  • a plurality of temperature zones of different temperatures are disposed in one refrigeration structure, and different temperature zones correspond to different air cooling modes, and temperature sensors disposed in different temperature zones are used to determine whether the corresponding temperature zone needs refrigeration, once If necessary, the corresponding damper is opened to make the airflow path unblocked, and the fan and compressor start to run. If cooling is not required, close the corresponding damper to close the airflow path.
  • This kind of independent control of the temperature zone is achieved by the corresponding temperature adjustment according to the actual cooling of the temperature zone.
  • FIG. 1 is a schematic view showing a multi-temperature zone refrigeration structure with a damper according to an embodiment of the present invention
  • FIG. 2 is a schematic diagram of the control method in FIG. 1.
  • FIG. 2 is a schematic diagram of the control method in FIG. 1.
  • connection In the description of the present invention, it should be noted that the terms “installation”, “connected”, and “connected” are to be understood broadly, and may be fixed or detachable, for example, unless otherwise explicitly defined and defined. Connected, or integrally connected; can be mechanical or electrical; can be directly connected, or indirectly connected through an intermediate medium, can be the internal communication of the two components. "First”, “second”, “third” and “fourth” do not represent any sequence relationship, but are merely for convenience of description. The specific meaning of the above terms in the present invention can be understood in a specific case by those skilled in the art. "Current” At the moment when an action is performed, multiple currents appear in the text, all of which are recorded in real time as time passes.
  • the present invention Based on the fact that the refrigerator is usually provided with a temperature zone and the energy consumption is large when the cryogenic zone is set, the present invention provides a multi-temperature zone refrigeration structure with a damper and a control method thereof.
  • a multi-temperature zone refrigeration structure with a damper is mainly composed of a box body and a door body, the door body covers the opening of the box body; two or more temperature zones are arranged in the box body, and the temperature is relatively low
  • the zone is surrounded by a relatively high temperature zone, the lowest temperature zone being closest to the evaporator of the refrigeration structure; the temperature zone comprising: a cryogenic zone, a conventional free zone, and/or soft freezing; different temperature zones using different airflow paths,
  • Each airflow path is connected to the air duct of the cabinet through the damper control, and the evaporator is placed in the air duct; each temperature zone is provided with a temperature measuring component.
  • the door body covers the opening of the box body, and the door body and the box body form a closed structure of the cooling structure.
  • two or three temperature zones can be determined according to your needs. Which one can be selected according to the needs of the temperature zone.
  • it refers to the distribution pattern when a multi-temperature zone is given, that is, the temperature zone with higher temperature is surrounded by the temperature zone with higher temperature, so that the temperature zone with lower temperature directly exchanges heat with the environment through the casing, resulting in large energy loss.
  • the way of enveloping is also in line with the tendency of the cold to gradually spread out, resulting in a higher and higher temperature. This distribution is in line with this trend.
  • the cooling structure can make a refrigerator or a freezer.
  • each airflow path is connected or closed by the damper control. If connected, the wind in the air duct enters the corresponding temperature zone. Temperature regulation in the temperature zone. If it is closed, it is cut off from the air duct.
  • the evaporator is placed in the air duct, close to the position of the return air inlet of the different temperature zones, in order to heat exchange the airflow nearby and to cool the airflow.
  • the airflow drive structure has been mentioned many times in the past, and the airflow drive structure is located downstream of the airflow passing through the evaporator, upstream of the airflow passing through the damper.
  • the airflow driving structure aims to feed the gas cooled by the evaporator into the corresponding damper position of each temperature zone. Once the damper is opened, the airflow enters the corresponding temperature zone. Therefore, the evaporator is in the upstream of the airflow, and the airflow driving structure is downstream of the airflow.
  • the damper is further downstream.
  • a fan can be selected for the airflow driving structure in the present technology.
  • the existing or future developed design for the purpose of the airflow driving structure belongs to the protection scope of the present invention.
  • each temperature zone and the adjacent air duct are separated by insulation layer as much as possible, which can avoid the heat exchange between the two directly through the casing, resulting in inaccurate temperature control and large energy loss. .
  • the temperature zone with the lowest temperature is close to the evaporator, based on the lowest temperature near the evaporator, and close to the low temperature that can effectively use the evaporator. In the case of low energy consumption, the cryogenic zone is created. Warm zone.
  • the temperature zone with the lowest temperature is not only close to the side of the evaporator, but also the other side is provided with heat insulation layer, in order to avoid heat exchange between the deep cooling zone and other temperature zones, resulting in inaccurate temperature control and large loss of energy. .
  • the same airflow path adopts the same airflow path, and the same airflow path can ensure the temperature uniformity in the same temperature zone, and is convenient for temperature control.
  • the same temperature zone is respectively located on both sides of the lower temperature zone, in order to facilitate the formation of the same airflow path, the same temperature zone at different positions of the casing communicates through the airflow path.
  • the side wall of the lower temperature zone is not in contact with the side wall of the casing, and there is a gap between the two, which can form an air flow path.
  • each airflow path and the air passage pass more than one air outlet and one The above return air outlets are connected. That is, a plurality of air outlets are provided, and the air outlets are connected to the air duct, and a plurality of air return ports are provided, and the air return ports are also connected to the air duct.
  • a wind tunnel is disposed on a side of the casing of the refrigeration structure, the temperature zone includes a second temperature zone disposed in the tank body and two or more first temperature zones, the first temperature zone is surrounded by the second temperature zone, and the second temperature zone is One side is close to the evaporator in the air duct, and the temperature in the second temperature zone is lower than the first temperature zone.
  • the first temperature zone, the second temperature zone, and the first temperature zone may be from top to bottom.
  • the first temperature zone may be soft freezing or normal freezing
  • the second temperature zone may be deep freezing.
  • All of the first temperature zones are connected in the tank through the air flow path, a part of the first temperature zone is connected to the air duct through the air duct outlet, and the other part of the first temperature zone is connected to the air duct through the air duct return air outlet.
  • the first temperature zone on the top is provided with a tuyere
  • the first temperature zone below is provided with a return air outlet.
  • the air outlet and the return air outlet can be arranged in plurality.
  • the second temperature zone also needs to set a corresponding air outlet and a return air outlet.
  • the second temperature zone has a second air duct air outlet at the upper part of the side wall of the air duct, and a second air duct return air outlet at the lower part, the second wind Both the outlet and the return air outlet of the second air duct are connected to the air duct.
  • the following is a control method for a multi-zone cooling structure with a damper, as shown in FIG. 2, which includes:
  • the refrigeration system consists of a compressor, a condenser, a capillary tube and an evaporator.
  • the evaporator reaches a lower evaporation temperature, that is, a cooling state; when the press is stopped, the evaporator is no longer cooled.
  • the designed sensor that maintains this temperature feels that the press start point is -23 ° C, and the stop point is -25 ° C;
  • the sensor feels that the temperature is higher than -23 °C it means that there is a cooling request.
  • it will bring a series of control brought by "with cooling request”, such as damper opening control; if the temperature felt by the sensor is lower than -25 °C, That means no cooling request, this will bring a series of control brought by "no cooling request”, such as damper closing control.
  • FIG. 2 shows a control schematic diagram of a refrigeration structure constructed by two first temperature zones and one second temperature zone.
  • the technology realizes the functions of a common freezing temperature zone and a cryogenic freezing zone in a freezer compartment, and the two zones are independently controlled to meet the fresh-keeping needs of different ingredients.
  • the deep cooling zone is arranged close to the evaporator; and the cryogenic zone temperature zone is basically surrounded by the ordinary freezing temperature zone, which reduces the heat load loss in the temperature zone and avoids solving A structurally complex problem caused by large power consumption and condensation problems.
  • the key point of the technology is to invent a freezer refrigerator that has both a normal freezing temperature zone and a cryogenic freezing temperature zone:
  • the temperature zone 1 is a common freezing zone (above -26 °C), and the temperature zone 2 (temperature range is -30-40 °C) is a cryogenic freezing zone with a lower temperature.
  • the two temperature zones can be independently controlled and brought to the user. The freezing requirements of different ingredients.
  • the temperature zone 2 is placed close to the evaporator, and the temperature zone (ie the temperature zone 2 with the lowest temperature) is set inside the temperature zone (ie temperature), surrounded by the temperature zone 1, reducing the heat load loss of the refrigerator and avoiding the outside world. Direct heat exchange in the environment brings the risk of unfavorable power consumption and condensation; in the temperature zone 2, except for the back, the other 5 sides are provided with insulation layers to achieve independent temperature control of the insulation.
  • the temperature zones 1, 2 have independent temperature sensors, dampers and air paths, and independent temperature control is achieved by the opening and closing of the dampers, fans and compressors to reach different freezing temperature zones.
  • the temperature zone 1 is in the upper part of the refrigerator and the lower part of the temperature zone 2, and the temperature zone 2 is surrounded by the temperature zone 1. Since the temperature of the temperature zone 2 is extremely low, the purpose of this design is to ensure the coldest temperature zone in the refrigerator. The innermost part forms a trend of increasing temperature from the inside to the outside.
  • the temperature zone 1 and the temperature zone 2 share one evaporator and the fan provides the cooling capacity; and two independent dampers (or double dampers) are provided.
  • the freezing damper 1 When the freezing damper 1 is opened, the temperature is supplied to the temperature zone 1, and when the freezing damper 2 is opened, it is the temperature zone.
  • 2 Air supply; independent temperature sensors are installed inside the temperature zones 1 and 2 to control the opening and stopping of the fan, compressor and two dampers to reach their respective set temperatures.
  • the air outlet path of the temperature zone 1 is discharged from the air outlets of the upper air duct of the refrigerator, and the flow gap formed between the temperature zone 2 and the door body flows through the gap of the bottom of the lower drawer, and returns through the air return port 1
  • the evaporator, the circulating power is the fan running + the damper 1 is opened, the wind path is the solid arrow of Figure 1;
  • the outlet wind path of the temperature zone 2 is the air outlet of each of the air ducts of the temperature zone 2, passing through the lower return air outlet 2
  • the circulating power is the fan running + the damper 2 is opened, and the air circulation is the dotted arrow in Figure 1.
  • the return air is cooled by the evaporator and then sent by the fans to the respective air outlets. Send it out.

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Abstract

一种带风门的多温区制冷结构及其控制方法。该结构的门体覆盖箱体的开口；箱体内设置两个以上的温区，温度相对低的温区（2）被温度相对高的温区（1）包围，温度最低的温区（2）距离制冷结构的蒸发器（4）最近；不同温区采用不同气流路径，每个气流路径通过风门（7）控制与箱体内风道的连通与否；蒸发器（4）置于风道内；每个温区设有测温元件。通过设置于不同温区的温度传感器，判定对应温区是否需要制冷，一旦需要则开启对应的风门（7），使气流路径畅通，风机和压缩机开始运行，如果不需要制冷，关闭对应的风门（7），使气流路径关闭。这种根据温区的实际制冷需要进行对应性温度调节的方式实现了温区的独立控制。

Description

带风门的多温区制冷结构、及其控制方法
交叉引用
本申请引用于2017年09月06日提交的专利名称为“带风门的多温区制冷结构、及其控制方法”的第2017107961234号中国专利申请，其通过引用被全部并入本申请。
技术领域
本发明涉及制冷领域，特别是涉及带风门的多温区制冷结构、及其控制方法。
背景技术
冰箱的冷冻具有双温区其各温区独立控制的温度范围一般都是软冷冻(如-18～7℃)和普通冷冻(-26℃以上)，但没有深冷比如低于-30℃的温区。部分产品有深冷区，但是一个间室里只有一个温区，要么是普通冷冻区，要么是深冷区；而且为了避免设置深冷温区时，箱体和环境的内外温差过大，即环境温度和箱体内部温差，该温差越大，耗电越大，凝露可能越大，对保温要求越高，其中凝露和耗电都无形中增加了产品的使用风险，因此需要为冰箱增加额外的泡层和防凝露措施，从而带来冰箱整体材料成本的成本上升和结构的复杂性，而在冰箱设置普通冷冻温区(用户用的概率更多)时，又带来结构的冗余和浪费。
随着用户对食材的冷冻需求，尤其是高端用户对深海鱼以及其他一些冷冻保鲜周期长的食材保鲜要求，发明一种可靠性佳的既有普通冷冻区又有深冷冷冻区的冰箱是市场的迫切需求。
发明内容
(一)要解决的技术问题
本发明的目的是提供带风门的多温区制冷结构、及其控制方法，实现多温区耗能低，独立控制的有益效果。
(二)技术方案
为了解决上述技术问题，本发明提供一种带风门的多温区制冷结构，其包括箱体和门体，所述门体覆盖所述箱体的开口；所述箱体内设置两个以上的温区，温度相对低的温区被温度相对高的温区包围，温度最低的所述温区距离制冷结构的蒸发器最近；所述温区包括：深冷区、常规冷冻区、和/或软冷冻；
不同温区采用不同的气流路径，每个所述气流路径通过风门控制与箱体内风道的连通与否；所述蒸发器置于所述风道内；每个温区设有测温元件。
在一些实施例中，优选为，所述风道内设置气流驱动结构，所述气流驱动结构将气流驱动至每个所述风门处。
在一些实施例中，优选为，所述气流驱动结构处于所述蒸发器的下游，处于所述风门的上游。
在一些实施例中，优选为，所述气流驱动结构包括风扇。
在一些实施例中，优选为，所述风门设置于风道中，所述风道由风门分割为多个连通不同气流路径的出风腔。
在一些实施例中，优选为，每个温区与相邻风道之间通过隔热层隔开。
在一些实施例中，优选为，温度最低的温区除了贴近所述蒸发器的侧面之外，其他侧面均设置隔热层。
在一些实施例中，优选为，处于所述箱体不同位置的相同的温区之间通过所述气流路径相通。
在一些实施例中，优选为，每个所述气流路径与风道之间通过一个以上的出风口和一个以上的回风口连通。
在一些实施例中，优选为，所述制冷结构包括：冰箱或冰柜。
在一些实施例中，优选为，所述制冷结构的箱体内靠近一侧面设置所述风道，所述温区包括设置于所述箱体内第二温区和第一温区，所述第一温区包围在所述第二温区周边，所述第二温区的一侧面靠近风道内的蒸发器，所述第二温区的温度低于所述第一温区。
在一些实施例中，优选为，所有所述第一温区在箱体内通过气流路径相连通，一部分第一温区通过风道出风口与风道连通，另一部分第一温区通过风道回风口与风道连通。
在一些实施例中，优选为，所述第二温区靠近所述风道的侧壁的上部开有第二风道出风口，下部开有第二风道回风口，所述第二风道出风口、所述第二风道回风口均与所述风道连通。
本发明还提供了一种带风门的多温区制冷结构的控制方法，其包括：
上电；
判断不同温度对应温区是否需要制冷，如果是，则开启对应温区的风门，如果否，则关闭对应温区的风门，当任何温度对应的温区需要制冷，那么风机和压缩机则开启，当任何温度对应的温区都不需要制冷，那么风机和压缩机停机。
(三)有益效果
本发明提供的技术方案中在一个制冷结构中设置多个不同温度的温区，不同温区对应不同的风冷方式，通过设置于不同温区的温度传感器，判定对应温区是否需要制冷，一旦需要则开启对应的风门，使气流路径畅通，风机和压缩机开始运行，如果不需要制冷，关闭对应的风门，使气流路径关闭。这种根据温区的实际制冷需要进行对应性温度调节的方式实现了温区的独立控制。
当设置深冷区时，避免为实现深冷区带来负荷增加和凝露风险的问题。同时，结构简单，避免能耗增大。
附图说明
图1为本发明一个实施例中带风门的多温区制冷结构示意图；
图2为图1中的控制方法示意图。
1温度相对高的温区；2温度最低的温区；3隔热层；4蒸发器；5回风口；6气流驱动结构；7风门。
具体实施方式
下面结合附图和实施例，对本发明的具体实施方式作进一步详细描述。以下实例用于说明本发明，但不用来限制本发明的范围。
在本发明的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；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。“第一”“第二”“第三”“第四”不代表任何的序列关系，仅是为了方便描述进行的区分。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本发明中的具体含义。“当前”在执行某动作之时的时刻，文中出现多个当前，均为随时间流逝中实时记录。
基于现在冰箱通常设置一个温区，当设置深冷区时耗能又较大的问题，本发明给出了带风门的多温区制冷结构及其控制方法。
下面将通过基础设计、扩展设计及替换设计对产品、方法等进行详细描述。
一种带风门的多温区制冷结构，如图1所示，其主要由箱体和门体组成，门体覆盖箱体的开口；箱体内设置两个以上的温区，温度相对低的温区被温度相对高的温区包围，温度最低的温区距离制冷结构的蒸发器最近；温区包括：深冷区、常规冷冻区、和/或软冷冻；不同温区采用不同的气流路径，每个气流路径分别通过风门控制与箱体内风道的连通与否，蒸发器置于风道内；每个温区设有测温元件。
门体覆盖箱体的开口，门体和箱体将制冷结构构成保温的封闭结构。究竟选择两个还是三个温区，可以根据需要而定，温区选择哪个也可以根据需要而定。此处指给出一种多温区时的分布方式，即温度较高的将温度较低的温区包围，以促使温度较低的温区直接通过壳体与环境热交换，造成能量损耗大，另一方面包围的方式也符合冷量逐渐向外扩散，造成温度越来越高的趋势，这种分布方式符合这种趋势。制冷结构可以使冰箱或冰柜。
同时，为了对不同温区进行独立的控制，不同温区采用不同的气流路径，每个气流路径经过风门控制与风道连通或关闭，如果连通，则风道内的风进入对应温区，对该温区进行温度调节。如果关闭，则与风道切断。
另一方面，蒸发器置于风道内，靠近不同温区回风口的位置，是为了就近将气流进行热交换，对气流进行制冷。
为了保持每个温区的温度恒定，平衡与风道内气流的连通效果，风道在贴近每个温区的位置开设出风腔。不同温区之间通过隔热层隔开后可以减少能量的损失。
前面多次提到了气流驱动结构，气流驱动结构均处于穿过蒸发器的气流下游，处于经过风门的气流的上游。气流驱动结构目的在于将经过蒸发器冷却后的气体送入各温区对应的风门位置，一旦风门打开，则气流进入对应的温区，因此，必然蒸发器在气流上游，气流驱动结构在气流下游，风门在更下游。
基于气流驱动结构的作用，在本技术中气流驱动结构可选用风扇，当然，现有的或将来研制出的发挥该气流驱动结构目的的设计都属于本发明的保护范围。
此处再强调一点，每个温区与相邻风道之间尽量通过隔热层隔开，能够避免二者直接通过壳体进行热交换，造成温度控制不准，且能量损失较大的问题。
前面提到温度最低的温区在靠近蒸发器的位置，是基于蒸发器附近温度最低，与其靠近能有效利用蒸发器的低温，在能量消耗不大的情况下，即创建深冷区等低温的温区。另一方面，温度最低的温区除了贴近蒸发器的侧面之外，其他侧面均设置隔热层，也是为了避免深冷区与其他温区发生热量交换，造成控温不准，且能量大量损耗。
前面也提到相同温区采用同一气流路径，同一气流路径能够保证相同温区的温度一致性，方便控温。考虑到同一温区分别处于温度较低温区的两侧，为了便于形成同一气流路径，处于箱体不同位置的相同的温区之间通过气流路径相通。也可以理解为温度较低的温区的侧壁与箱体的侧壁不接触，二者之间存在空隙，该空隙可以形成气流路径。
前文还提到了出风口和回风口，通常气道内的冷气从出风口排入温区中，经过温区内的流动后自回风口回到风道。考虑到有些温区体积较大，采用一个出风口、一个回风口会造成气流流动的不均匀，温度调节受到影响，基于此，每个气流路径与风道之间通过一个以上的出风口和一个以上的回风口连通。即设置多个出风口，这些出风口都与风道连通，设置多个回风口，这些回风口也都与风道连通。
下面以设置两个温区为例，对制冷结构进行再次限定：
制冷结构的箱体内靠近一侧面设置风道，温区包括设置于箱体内第二温区和两个以上的第一温区，第一温区包围在第二温区周边，第二温区的 一侧面靠近风道内的蒸发器，第二温区的温度低于第一温区。在通常的情况下可以自上而下为第一温区、第二温区、第一温区。第一温区可以为软冷冻或普通冷冻，第二温区可以为深冷冻。
所有第一温区在箱体内通过气流路径相连通，一部分第一温区通过风道出风口与风道连通，另一部分第一温区通过风道回风口与风道连通。比如，上面的第一温区设置出风口，下面的第一温区设置回风口，当然出风口、回风口都可以设置多个。
而第二温区也需要设置对应的出风口和回风口，第二温区靠近风道的侧壁的上部开有第二风道出风口，下部开有第二风道回风口，第二风道出风口、第二风道回风口均与风道连通。
下面给出一种带风门的多温区制冷结构的控制方法，如图2所示，其包括：
上电；
判断不同温度对应温区是否需要制冷，如果是，则开启对应温区的风门，如果否，则关闭对应温区的风门，当任何温度对应的温区需要制冷，那么风机和压缩机则开启，当任何温度对应的温区都不需要制冷，那么风机和压缩机停机。
需要说明：制冷系统由压缩机，冷凝器，毛细管，蒸发器组成，压机运行时，蒸发器达到较低的蒸发温度，即制冷状态；压机停机时，蒸发器不再制冷。
判断温区是否制冷请求：
例，如设置某温区的温度档位是-24℃(间室实际平均温度)；维持此温度的设计的传感器感受的压机开机点是-23℃，停机点是-25℃；那当传感器感受到温度高于-23℃时，即代表有制冷请求，此时会带来“有制冷请求”带来的系列控制，如风门开启等控制；若传感器感受的温度低于-25℃，即代表没有制冷请求，此时会带来“无制冷请求”带来的系列控制，如风门关闭等控制。
为了对该控制方法进行更明确的说明，图2给出了两个第一温区和一个第二温区构建的制冷结构的控制原理图。
本技术实现在一个冷冻室冰箱内既有普通冷冻温区温区、又有深冷冷 冻温区温区功能，且两个温区独立控制，满足不同食材的保鲜需求。
通过对深冷温区的合理布局，将深冷区布置在靠近蒸发器的部位；且深冷区温区基本被普通冷冻温区温区包围，降低了温区的热负荷损失,避免了为解决耗电大和凝露问题而带来的结构复杂的问题。
本技术的关键点在于发明了一种既有普通冷冻温区又有深冷冷冻温区的冷冻室冰箱：
温区1为普通冷冻区(-26℃以上)，温区2(温度范围为-30～-40℃)为温度更低的深冷冷冻区，两个温区可以独立控制，给用户带来了不同食材的冷冻需求。
温区2设置在靠近蒸发器的位置，将温区(即温度最低的温区2)设置在温区(即温度)的内部,被温区1包围，降低冰箱的热负荷损失，避免与外界环境直接换热而带来耗电量不利和凝露的风险；温区2除后背外其他5面均设置隔热层，实现独立温控的保温。
温区1，2分别有独立的温度传感器、风门和风路，靠风门、风机和压缩机的开停实现独立的温控达到不同的冷冻温区。
以图1来说明，温区1在冰箱的上部以及温区2下部，温区2被温区1包围，由于温区2温度极低，此设计的目的是保证最冷的温区在冰箱的最内部，形成从内到外温度递增的趋势，如此，可避免最低温区和外界环温直接换热，由Q＝K*A*ΔT(Q，热量耗散；K，传热系数；A，换热面积；ΔT，外部环境与隔热层内相邻的温区的温差)可知，该结构可以减少温差ΔT，从而达到较好的保温效果，减少凝露风险和降低能耗}；温区2设置在靠近蒸发器的部位(这样设计的目的是，由于蒸发器温度较低，而温区2要求的温度较低，因此温度2靠近布局在蒸发器位置更有利于形成低温区)，其除背部靠近蒸发器一侧外，其余5面均设置隔热层保温(目的是对温度较低的温区2形成保温的格局，避免受温区1的影响而温度上升)。
温区1和温区2共用一个蒸发器、风机提供冷量；并设置两个独立的风门(或者双风门)，冷冻风门1开启时为温区1供风，冷冻风门2开启时为温区2供风；温区1、2内部均设置独立的温度传感器，用来控制风机、压缩机和两个风门的开、停来达到各自的设定温度。
温区1的出风风路是由冰箱的上部风道的各出风口出风，由温区2和门体之间形成的流通间隙、流经下部抽屉底部的间隙，通过回风口1回到蒸发器，循环动力为风机运转+风门1开启，风路循环为图1实线箭头；温区2的出风风路是由温区2的风道各出风口出风，经过下部的回风口2回到蒸发器，循环动力为风机运转+风门2开启，风路循环为图1中的虚线箭头.回风经过蒸发器冷却后再由各风扇输送到各自的出风腔后分各出风口送出。
以上所述仅为本发明的较佳实施例而已，并不用以限制本发明，凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。

Claims (14)

  1. 一种带风门的多温区制冷结构，其特征在于，箱体和门体，所述门体覆盖所述箱体的开口；所述箱体内设置两个以上的温区，温度相对低的温区被温度相对高的温区包围，温度最低的所述温区距离制冷结构的蒸发器最近；所述温区包括：深冷区、常规冷冻区、和/或软冷冻；
    不同温区采用不同的气流路径，每个所述气流路径通过风门控制与箱体内风道的连通与否；所述蒸发器置于所述风道内；每个温区设有测温元件。
  2. 如权利要求1所述的带风门的多温区制冷结构，其特征在于，所述风道内设置气流驱动结构，所述气流驱动结构将气流驱动至每个所述风门处。
  3. 如权利要求2所述的带风门的多温区制冷结构，其特征在于，所述气流驱动结构处于所述蒸发器的下游，处于所述风门的上游。
  4. 如权利要求2所述的带风门的多温区制冷结构，其特征在于，所述气流驱动结构包括风扇。
  5. 如权利要求1所述的带风门的多温区制冷结构，其特征在于，所述风门设置于风道中，所述风道由风门分割为多个连通不同气流路径的出风腔。
  6. 如权利要求1所述的带风门的多温区制冷结构，其特征在于，每个温区与相邻风道之间通过隔热层隔开。
  7. 如权利要求1所述的带风门的多温区制冷结构，其特征在于，温度最低的温区除了贴近所述蒸发器的侧面之外，其他侧面均设置隔热层。
  8. 如权利要求1所述的带风门的多温区制冷结构，其特征在于，处于所述箱体不同位置的相同的温区之间通过所述气流路径相通。
  9. 如权利要求8所述的带风门的多温区制冷结构，其特征在于，每个所述气流路径与风道之间通过一个以上的出风口和一个以上的回风口连通。
  10. 如权利要求1所述的带风门的多温区制冷结构，其特征在于，所述制冷结构包括：冰箱或冰柜。
  11. 如权利要求1-10任一项所述的带风门的多温区制冷结构，其特征 在于，所述制冷结构的箱体内靠近一侧面设置所述风道，所述温区包括设置于所述箱体内第二温区和第一温区，所述第一温区包围在所述第二温区周边，所述第二温区的一侧面靠近风道内的蒸发器，所述第二温区的温度低于所述第一温区。
  12. 如权利要求11所述的带风门的多温区制冷结构，其特征在于，所有所述第一温区在箱体内通过气流路径相连通，一部分第一温区通过风道出风口与风道连通，另一部分第一温区通过风道回风口与风道连通。
  13. 如权利要求12所述的带风门的多温区制冷结构，其特征在于，所述第二温区靠近所述风道的侧壁的上部开有第二风道出风口，下部开有第二风道回风口，所述第二风道出风口、所述第二风道回风口均与所述风道连通。
  14. 一种带风门的多温区制冷结构的控制方法，其特征在于，包括：
    上电；
    判断不同温度对应温区是否需要制冷，如果是，则开启对应温区的风门，如果否，则关闭对应温区的风门，当任何温度对应的温区需要制冷，那么风机和压缩机则开启，当任何温度对应的温区都不需要制冷，那么风机和压缩机停机。
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