Summary of the invention
Purpose of the present invention is finished for the problems referred to above that solve prior art, promptly, the invention provides a kind of refrigerator, possesses refrigerating chamber, refrigerating chamber, the temperature-changing chamber adjacent with refrigerating chamber, have and connect compressor successively, condenser, first expansion gear, refrigerator evaporator, the kind of refrigeration cycle of freezer evaporator, at least in temperature-changing chamber, be provided with the temperature-changing chamber temperature sensor that detects the temperature in this temperature-changing chamber, it is characterized in that, refrigerator evaporator is a directly cooling evaporator, between refrigerating chamber and temperature-changing chamber, be provided with air channel portion, have the air conditioning quantity adjusting device of adjusting, also have control device based on the signal controlling air conditioning quantity adjusting device of described temperature-changing chamber temperature sensor to the influx of the cold air of air channel portion inflow.
Refrigerator of the present invention has been realized the function of refrigerating chamber and refrigerating chamber, and has also realized the function of temperature-changing chamber well by the air conditioning quantity adjusting device.
According to its freezer evaporator of refrigerator of the present invention is air-cooled evaporimeter, the refrigerating chamber air-supply arrangement that has in the refrigerating chamber and air is flowed.Therefore,, the temperature uniformity in the refrigerating chamber can be improved, the adjustment precision of refrigerating chamber can be improved with respect to the direct-cooling type freezer evaporator.
In the refrigerator of the present invention, the air conditioning quantity adjusting device can be the switching device of opening and closing air channel portion, also can be to make air flow to the pressure fan of temperature-changing chamber from refrigerating chamber through air channel portion.Like this, the volume of traffic of open and-shut mode or pressure fan by the by-pass cock device can be regulated the air conditioning quantity that flow into air channel portion well, and be controlled the temperature of temperature-changing chamber and refrigerating chamber with this.
In addition, when the freezer evaporator of refrigerator of the present invention is air-cooled evaporimeter, can be with above-mentioned pressure fan double as refrigerating chamber air-supply arrangement.Like this, in the structure of simplifying refrigerator, still can bring into play effect of the present invention.
In the refrigerator of the present invention, refrigerator temperature sensor can be set in refrigerating chamber, control device compensates the volume of traffic of above-mentioned air conditioning quantity adjusting device according to the detected temperatures of refrigerator temperature sensor.Specifically, control device compensates the volume of traffic of pressure fan, the perhaps open and-shut mode of compensating switch device according to the detected temperatures of refrigerator temperature sensor.
In addition, in the refrigerator of the present invention, also freezer temperature sensor can be set in refrigerating chamber, control device compensates the volume of traffic of above-mentioned air conditioning quantity adjusting device according to the detected temperatures of freezer temperature sensor.Specifically, control device compensates the volume of traffic of pressure fan, the perhaps open and-shut mode of compensating switch device according to the detected temperatures of freezer temperature sensor.
In the refrigerator of the present invention, kind of refrigeration cycle is from condensator outlet side branch, has the binary channel that is communicated with refrigerator evaporator and freezer evaporator with second expansion gear, have at condensator outlet side, the triple valve that switches between stream by first expansion gear and the stream by second expansion gear, control device is according to the detected temperatures of temperature-changing chamber temperature sensor and the detected temperatures control triple valve of refrigerator temperature sensor.
In addition, in the refrigerator of the present invention, in refrigerating chamber, has refrigerator temperature sensor, and kind of refrigeration cycle is from condensator outlet side branch, has the binary channel that is communicated with refrigerator evaporator and freezer evaporator with second expansion gear, have at condensator outlet side, the triple valve that switches between stream by first expansion gear and the stream by second expansion gear, control device is according to the detected temperatures of temperature-changing chamber temperature sensor and the detected temperatures control triple valve of refrigerator temperature sensor.
In sum, refrigerator of the present invention has not only been realized the function of refrigerating chamber and refrigerating chamber, has also realized the function of temperature-changing chamber well by various means, also avoided simultaneously existing direct-cooling type temperature-changing chamber on the cost and energy savings on perfect inadequately shortcoming.
The specific embodiment
Describe suitable embodiment of the present invention with reference to the accompanying drawings in detail.Certainly, the present invention is not subject to these embodiment.Be marked with identical numeral for corresponding part in the accompanying drawing, and omitted repeat specification.
Fig. 1 or 2 is schematic diagrames of the present invention's one routine embodiment.
Shown in Fig. 1 or 2, refrigerator of the present invention possesses refrigerating chamber 1, refrigerating chamber 8, the temperature-changing chamber 3 adjacent with refrigerating chamber, has the kind of refrigeration cycle that connects compressor 7, condenser 15, the first expansion gear 11a, refrigerator evaporator 2, freezer evaporator 6 successively, and, in temperature-changing chamber 3, be provided with the temperature-changing chamber temperature sensor 13a that detects the temperature in the temperature-changing chamber 3 at least.Wherein, refrigerator evaporator 2 is directly cooling evaporators, is provided with air channel portion 4 between refrigerating chamber 8 and temperature-changing chamber 3, is provided with temperature-changing chamber air channel cover plate 9 in the temperature-changing chamber 3, is provided with freezer evaporator cover plate 10 in the refrigerating chamber 8.In addition, refrigerator of the present invention also have the cold air that adjusting flows into to air channel portion 4 influx the air conditioning quantity adjusting device and, the control device of above-mentioned air conditioning quantity adjusting device being controlled based on the detected temperatures of temperature-changing chamber temperature sensor 13a 12.
In the refrigerator of the present invention, the temperature adjusting range of each storeroom is respectively: 10 ℃~0 ℃ of refrigerating chamber, temperature-changing chamber-18 ℃~10 ℃, refrigerating chamber-16 ℃~and-26 ℃.
In addition, shown in Fig. 1 or 2, freezer evaporator 6 is generally air-cooled evaporimeter, is provided with the refrigerating chamber air-supply arrangement 5 that air is flowed between refrigerating chamber 8 and air-cooled evaporimeter 6 in the refrigerating chamber 8.At this moment, it can increase substantially the air flow property in the refrigerating chamber 8, thereby can make the inside of refrigerating chamber 8 reach temperature uniformity fast than directly cooling evaporator, improves the adjustment precision of refrigerating chamber 8.
In addition, as shown in Figure 2, in the air channel portion 4 switching device of opening and cutting out this air channel portion 4 can also be set, this switching device is associated with control device 12, and control it by control device 12 and open and closing state, to play control from the effect of refrigerating chamber 8 to the air conditioning quantity of temperature-changing chamber 3 supplies.That is to say that the air conditioning quantity adjusting device in the refrigerator of the present invention can be the switching device of opening and closing above-mentioned air channel portion 4.Specifically, when the temperature of temperature-changing chamber 3 reaches design temperature, the degree (hereinafter to be referred as " aperture ") that control device 12 cuts out switching device or reduces to open; And when the temperature of temperature-changing chamber 3 does not reach design temperature, control device 12 is opened switching device or is increased degree of beating or/and time, the cold air of more refrigerating chamber 8 is flow in the temperature-changing chamber 3, to reach the effect of the temperature of regulating temperature-changing chamber 3 as early as possible through air channel portion 4.
In addition, air conditioning quantity adjusting device of the present invention also can be to make air flow to pressure fan 16 in the temperature-changing chamber 3 through air channel portion 4 from refrigerating chamber 8.At this moment, this pressure fan 16 can be arranged in the air channel portion 4, as shown in Figure 3; Also pressure fan 16 can be arranged on the outflow oral-lateral of air channel portion 4, as shown in Figure 4, flow out to temperature-changing chamber 3 interior causing by the air that will flow out oral-lateral and flow from the air of refrigerating chamber 8 to temperature-changing chamber 3; Can also be arranged on the inflow oral-lateral of air channel portion 4, be delivered to temperature-changing chamber 3 interior causing by the air that will flow into oral-lateral and flow from the air of refrigerating chamber 8 to temperature-changing chamber 3.No matter pressure fan is which kind of form that illustrates previously, all is associated with control device 12, and regulates its operation by control device 12, to play the effect of adjusting to the air conditioning quantity of temperature-changing chamber 3 supplies.Specifically, when the temperature of temperature-changing chamber 3 reached design temperature, control device 12 reduced the running time of the air output of pressure fan and/or pressure fan or cuts out pressure fan; And when the temperature of temperature-changing chamber 3 does not reach design temperature, control device 12 is opened pressure fan, and improve the air output of pressure fan and/or the time of increase pressure fan operation, with this more cold air is flow in the temperature-changing chamber 3 from refrigerating chamber 8, with the effect of the temperature that reaches quick adjustment temperature-changing chamber 3.
Certainly, when freezer evaporator is air-cooled evaporimeter, can be with above-mentioned pressure fan double as refrigerating chamber air-supply arrangement 5.For example, as shown in Figure 5, its opening and freezer evaporator cover plate 10 with respect to air channel portion 4 disposes obliquely, and the air circulation of refrigerating chamber 8 inside is flowed, can also be to the inflow entrance cool-air feed of the refrigerating chamber side of air channel portion 4.So, pressure fan can be brought into play simultaneously as the function of pressure fan with as the function of refrigerating chamber air-supply arrangement 5, just needn't dispose other air-supply arrangement 5 again, when can obtaining effect of the present invention, also helps the minimizing cost.
In addition, refrigerator of the present invention can also also be provided with temperature sensor (refrigerator temperature sensor 13b) in refrigerating chamber 1, and control device 12 compensates the volume of traffic of above-mentioned air conditioning quantity adjusting device based on the detected temperatures of refrigerator temperature sensor 13b.
Specifically, when be provided with refrigerator temperature sensor 13b in the refrigerating chamber 1, when the air conditioning quantity adjusting device is pressure fan, the situation of regulating pressure fan with this air conditioning quantity of refrigerating chamber air-supply arrangement 5 double as is an example, its formation can be with reference to figure 6.At this moment, when control device 12 is controlled the volume of traffic of pressure fan according to the detected temperature of temperature-changing chamber temperature sensor 13a, compensate the volume of traffic of this pressure fan based on the detected temperatures of refrigerator temperature sensor 13b.That is to say, when the load of refrigerating chamber 1 is higher, because the distribution to the refrigerating capacity of refrigerating chamber 1 is higher, cause to the distribution of the refrigerating capacity of refrigerating chamber 8 relatively low, and cause from refrigerating chamber 8 on the low side thus to the influx of the cold air of temperature-changing chamber 3, at this moment, increase the volume of traffic of pressure fan, make from the influx of refrigerating chamber 8 to increase to the cold air of temperature-changing chamber 3 by detected temperatures based on refrigerator temperature sensor 13b.On the other hand, when the load of refrigerating chamber 1 hangs down, because the distribution to the refrigerating capacity of refrigerating chamber 1 is relatively low, cause to the distribution of the refrigerating capacity of refrigerating chamber 8 higher relatively, and cause from refrigerating chamber 8 bigger than normal thus to the influx of the cold air of temperature-changing chamber 3, at this moment, reduce the volume of traffic of pressure fan, make from the influx of refrigerating chamber 8 to reduce to the cold air of temperature-changing chamber 3 by detected temperatures based on refrigerator temperature sensor 13b.Its result, under bigger " high load capacity " situation of differing between the actual temperature of refrigerating chamber 1 and the design temperature, by regulating the volume of traffic of pressure fan, the minimizing of the few refrigerating capacity of supplying with to temperature-changing chamber 3 that causes of refrigerating capacity big owing to the refrigerating capacity of distributing to refrigerating chamber 1, that supply with to refrigerating chamber 8 can be compensated, the temperature of temperature-changing chamber 3 can be kept.So, can improve the adjustment precision of temperature-changing chamber 3.
And when be provided with refrigerator temperature sensor 13b in the refrigerating chamber 1, the air conditioning quantity adjusting device is when opening and closing the switching device of air channel portion 4, when control device 12 comes the open and-shut mode of gauge tap device according to the detected temperature of temperature-changing chamber temperature sensor 13a, compensate the open and-shut mode of this switching device based on the detected temperatures of refrigerator temperature sensor 13b.Specifically, when the load of refrigerating chamber 1 is higher, because the distribution to the refrigerating capacity of refrigerating chamber 1 is higher, cause to the distribution of the refrigerating capacity of refrigerating chamber 8 relatively low, and cause from refrigerating chamber 8 on the low side thus to the influx of the cold air of temperature-changing chamber 3, at this moment, increase the aperture of switching device, make from the influx of refrigerating chamber 8 to increase to the cold air of temperature-changing chamber 3 by detected temperatures based on refrigerator temperature sensor 13b.On the other hand, when the load of refrigerating chamber 1 hangs down, because the distribution to the refrigerating capacity of refrigerating chamber 1 is relatively low, cause to the distribution of the refrigerating capacity of refrigerating chamber 8 higher relatively, and cause from refrigerating chamber 8 bigger than normal thus to the influx of the cold air of temperature-changing chamber 3, at this moment, reduce the aperture of switching device, make from the influx of refrigerating chamber 8 to reduce to the cold air of temperature-changing chamber 3 by detected temperatures based on refrigerator temperature sensor 13b.The effect that it reaches and above-mentioned, the situation that is provided with refrigerator temperature sensor 13b, air conditioning quantity adjusting device in the refrigerating chamber 1 and is pressure fan is identical.
In addition, refrigerator of the present invention also can be, is provided with temperature sensor (freezer temperature sensor 13c) in refrigerating chamber 8, and control device 12 compensates the volume of traffic of above-mentioned air conditioning quantity adjusting device based on the detected temperatures of freezer temperature sensor 13c.
Specifically, when being provided with freezer temperature sensor 13c in the refrigerating chamber 8, when the air conditioning quantity adjusting device is pressure fan, being example with the situation of refrigerating chamber air-supply arrangement 5 these pressure fans of double as, its formation can be with reference to figure 7.When control device 12 is controlled the volume of traffic of pressure fan according to the detected temperature of temperature-changing chamber temperature sensor 13a, compensate the volume of traffic of this pressure fan based on the detected temperatures of freezer temperature sensor 13c.That is to say, distribution to the refrigerating capacity of refrigerating chamber 8 when the load of refrigerating chamber 8 is higher is higher, cause from refrigerating chamber 8 also higher to the influx of the cold air of temperature-changing chamber 3, at this moment, reduce the volume of traffic of pressure fan by detected temperatures, make from the influx of refrigerating chamber 8 to reduce to the cold air of temperature-changing chamber 3 based on freezer temperature sensor 13c.On the other hand, distribution to the refrigerating capacity of refrigerating chamber 8 when the load of refrigerating chamber 8 is low is relatively low, cause from refrigerating chamber 8 also less than normal to the influx of the cold air of temperature-changing chamber 3, at this moment, increase the volume of traffic of pressure fan by the detected temperatures based on freezer temperature sensor 13c, making from the influx of refrigerating chamber 8 to the cold air of temperature-changing chamber 3 increases.Its result, under bigger " high load capacity " situation of differing between the actual temperature of refrigerating chamber 8 and the design temperature, by regulating the volume of traffic of pressure fan, can compensate owing to distribute to the increase of the refrigerating capacity of refrigerating chamber 8 refrigerating capacity big, that supply with to temperature-changing chamber 3, can keep the temperature of temperature-changing chamber 3.So, can improve the adjustment precision of temperature-changing chamber 3.
And when be provided with freezer temperature sensor 13c in the refrigerating chamber 8, when the air conditioning quantity adjusting device is switching device, when control device 12 comes the on off state of gauge tap device according to the detected temperature of temperature-changing chamber temperature sensor 13a, compensate the on off state of this switching device based on the detected temperatures of freezer temperature sensor 13c.That is to say, distribution to the refrigerating capacity of refrigerating chamber 8 when the load of refrigerating chamber 8 is higher is higher, cause from refrigerating chamber 8 also higher to the influx of the cold air of temperature-changing chamber 3, at this moment, reduce the aperture of switching device by detected temperatures, make from the influx of refrigerating chamber 8 to reduce to the cold air of temperature-changing chamber 3 based on freezer temperature sensor 13c.On the other hand, distribution to the refrigerating capacity of refrigerating chamber 8 when the load of refrigerating chamber 8 is low is relatively low, cause from refrigerating chamber 8 also less than normal to the influx of the cold air of temperature-changing chamber 3, at this moment, increase the aperture of switching device by the detected temperatures based on freezer temperature sensor 13c, making from the influx of refrigerating chamber 8 to the cold air of temperature-changing chamber 3 increases.Its result, under bigger " high load capacity " situation of differing between the actual temperature of refrigerating chamber 8 and the design temperature, on off state by the by-pass cock device, can compensate owing to distribute to the increase of the refrigerating capacity of refrigerating chamber 8 refrigerating capacity big, that supply with to temperature-changing chamber 3, can keep the temperature of temperature-changing chamber 3.So, can improve the adjustment precision of temperature-changing chamber 3.
Refrigerator of the present invention can also be taked the embodiment shown in Fig. 8 or 9.That is to say, have on the basis of above-mentioned formation, can be further, its kind of refrigeration cycle is from the outlet side branch of condenser 15, has 6 that be communicated with refrigerator evaporator 2 and freezer evaporator, as to have second expansion gear 11b binary channel, the triple valve 14 that have outlet side, between stream by the first expansion gear 11a and stream, switches by the second expansion gear 11b at condenser 15.At this moment, control device 12 is controlled triple valve 14 according to the detected temperatures of temperature-changing chamber temperature sensor 13a.Specifically, when having a narrow range of temperature between the actual temperature of temperature-changing chamber 3 and the design temperature (temperature-changing chamber is in low load condition), preferentially satisfy the refrigeration requirement of refrigerating chamber 1, kind of refrigeration cycle as shown in Figure 8; And when the actual temperature of temperature-changing chamber 3 and the temperature difference between the design temperature big (temperature-changing chamber is in higher load condition), then preferentially satisfying the refrigeration requirement of temperature-changing chamber 3, kind of refrigeration cycle is as shown in Figure 9.The loop direction of dotted arrow direction indication cold-producing medium among Fig. 8, Fig. 9.
Certainly, in the embodiment shown in Fig. 8 or 9, also can have refrigerator temperature sensor 13b in the refrigerating chamber 1.And control device 12 is controlled triple valve according to the detected temperatures of temperature-changing chamber temperature sensor 13a and the detected temperatures of refrigerator temperature sensor 13b.Specifically, control device 12 is confirmed the load condition of refrigerating chamber 1 earlier, when the actual temperature of refrigerating chamber 1 and the temperature difference between the design temperature big (refrigerating chamber 1 is in higher load condition), then preferentially satisfy the refrigeration requirement of refrigerating chamber 1, ignore the refrigeration requirement of temperature-changing chamber 3, kind of refrigeration cycle as shown in Figure 8; And when the actual temperature of the actual temperature of refrigerating chamber 1 and have a narrow range of temperature (refrigerating chamber 1 is not in higher load condition) and temperature-changing chamber 3 between the design temperature and the temperature difference between the design temperature big (temperature-changing chamber 3 is in higher load condition), control device 12 will be ignored the refrigeration requirement of refrigerating chamber 1, preferentially satisfy the refrigeration requirement of temperature-changing chamber 3, kind of refrigeration cycle as shown in Figure 9.
Like this, refrigerator of the present invention can reasonably distribute the distribution of the refrigerating capacity between each storeroom according to user's purpose, and can accurately control the temperature of each storeroom simultaneously.
As mentioned above, the invention provides a kind of air-cooled and direct-cooled refrigerator, it has not only realized the function of good refrigerating chamber and refrigerating chamber, has also realized the function of temperature-changing chamber well, avoided simultaneously existing direct-cooling type temperature-changing chamber on the cost and energy savings on perfect inadequately shortcoming.
Obviously, except that above-mentioned embodiment, the present invention can also have other embodiment.All employings are equal to replacement or equivalent transformation and the technical scheme that constitutes, all drop in protection scope of the present invention.