CN108613452A - Air cooling refrigeration equipment and its control method - Google Patents

Abstract

The invention discloses a kind of air cooling refrigeration equipment and its control methods.Air cooling refrigeration equipment, including babinet and door body, ducting assembly, partition and evaporator are provided in babinet, box house is divided into the first storing compartment and the second storing compartment by partition, ducting assembly includes cover board, foams, the first wind turbine and the second wind turbine, and the first air outlet, the first return air inlet, the second air outlet and the second return air inlet are provided on cover board；Foams are arranged on the cover board, form return air cavity, the first air-supply passage and the second air-supply passage, the first return air inlet and the second return air inlet in foams and are connected to return air cavity, the first air outlet is connected to the first air-supply passage, the second air outlet and the second air-supply passage；First wind turbine is arranged in return air cavity, and the second wind turbine is arranged between the second air-supply passage and the second air outlet.Realize the space availability ratio and use reliability for improving refrigeration equipment.

Description

Air-cooled refrigeration equipment and its control method

technical field

The invention relates to refrigeration equipment, in particular to an air-cooled refrigeration equipment and a control method thereof.

Background technique

At present, air-cooled refrigeration equipment (refrigerators, freezers, etc.) are usually equipped with air ducts for air supply in the cabinets, and when a single cabinet is divided into upper and lower storage compartments, usually in the air A damper is added in the channel to adjust the temperature of the two storage compartments respectively. However, there are the following problems in using the damper to adjust the temperature: 1. The damper needs to be installed at the air outlet and placed horizontally in the air duct, so that the overall thickness of the air duct is relatively large, resulting in reduced storage space and low space utilization; 2. The damper is in an open state for a long time, and the damper is in a static state for a long time, and it is easy to accumulate water and freeze on it so that it cannot be closed, and the reliability of use is low. How to design a refrigeration device with high space utilization and high reliability is the technical problem to be solved by the present invention.

Contents of the invention

The invention provides an air-cooled refrigerating device and a control method thereof, which can improve the space utilization rate and reliability of the refrigerating device.

In order to achieve the above-mentioned technical purpose, the present invention adopts the following technical solutions to realize:

An air-cooled refrigeration device, comprising a box body and a door body connected together, the box body is provided with an air duct assembly, a partition and an evaporator, and the partition partitions the interior of the box body into a first storage compartment and a second storage compartment, the air duct assembly includes a cover plate, a foam body, a first blower fan and a second blower fan, and the cover plate is provided with a first blower located in the first storage compartment An air outlet and a first air return port, the cover plate is provided with a second air outlet and a second air return port located in the second storage compartment; the foam body is provided on the cover plate, the A return air cavity, a first air supply channel and a second air supply channel connected in sequence are formed in the foam body, the first air return port and the second air return port communicate with the return air cavity, the first The air outlet communicates with the first air supply channel, and the second air outlet communicates with the second air supply channel; the first fan is arranged in the return air cavity, and the second fan is arranged in the air return cavity. Between the second air supply channel and the second air outlet, the evaporator is attached to the back of the foam body and covers the first air supply channel and the second air supply channel.

Further, the foam body includes a first foam and a second foam connected together, the air return cavity is formed between the first foam and the second foam, and the first fan and the second foam The second blower is arranged on the second foam, and the first air supply channel and the second air supply channel are formed on the second foam.

Further, the upper part of the first foam is provided with a first notch communicating with the return air cavity, the lower part of the first foam is provided with a second notch communicating with the return air cavity, and the first notch It is connected with the first air return port, and the second notch is connected with the second air return port.

Further, an air duct is formed between the first foam and the second foam, and the second foam is provided with a vent for communicating with the first air outlet, and the vent passes through the air duct communicate with the second air supply channel.

Further, the upper edge of the second foam forms several ventilation gaps communicating with the first air supply channel, the first air outlets are distributed on the edge of the cover plate, and the ventilation gaps are connected to the corresponding first air supply channels. One air outlet is connected.

Further, grooves are provided on the back side of the second foam, spacers are arranged in the grooves, and the spacers separate the grooves to form the first air supply channel and the second air supply channel. aisle.

Further, the first storage compartment is located above the second storage compartment; return air from the first storage compartment and the second storage compartment enters the return air chamber In the body, the first fan blows the gas in the return air cavity toward the bottom of the evaporator and enters the first air supply channel, and the gas flows upward in the first air supply channel. While exchanging heat with the evaporator, part of the gas flowing in the first air supply channel is output from the first air outlet to the first storage compartment, and in the first air supply channel The remaining gas flows into the second air supply channel and flows downward and continues to exchange heat with the evaporator, and the second fan outputs the gas flowing in the second air supply channel from the second air outlet into the second storage compartment.

The present invention also provides a control method for the above-mentioned air-cooled refrigeration equipment, including: adjusting the temperature of the first storage compartment and the second storage compartment by controlling the power on and off of the first fan and the second fan.

Further, the control of the power on and off of the first fan and the second fan is specifically: when the temperature of the first storage compartment is higher than the set value, the first fan is started until the temperature of the first storage compartment reaches the set value; when the temperature of the second storage compartment is higher than the set value, the second fan starts until the temperature of the second storage compartment reaches the set value.

Compared with the prior art, the advantages and positive effects of the present invention are: by configuring two independent fans in the air duct assembly to control the temperature of the two storage compartments respectively, there is no need to configure additional dampers to control the cooling, which can effectively Reduce the thickness of the air duct assembly, reduce the space inside the box occupied by the air duct assembly, effectively increase the storage space and improve the space utilization rate; The occurrence of control failure caused by icing simplifies the control process and improves the reliability of use.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are some embodiments of the present invention. For those skilled in the art, other drawings can also be obtained according to these drawings without any creative effort.

Fig. 1 is the structural representation of the refrigeration equipment embodiment of the present invention;

Fig. 2 is a sectional view of an embodiment of the refrigeration equipment of the present invention;

Fig. 3 is an exploded view of the air duct assembly in the refrigeration equipment embodiment of the present invention;

Fig. 4 is a schematic structural view of the air duct assembly in the embodiment of the refrigeration equipment of the present invention;

Fig. 5 is a structural schematic diagram of a partition in an embodiment of the refrigeration equipment of the present invention;

Fig. 6 is a schematic structural view of the slide rail in the refrigeration equipment embodiment of the present invention.

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

As shown in Figures 1 to 6, the air-cooled refrigeration equipment of this embodiment includes a box body 1 and a door body (not shown) connected together, and the box body 1 is provided with an air duct assembly 2 and a partition 3 and the evaporator 10, the partition 3 divides the interior of the box body 1 into a first storage compartment 101 and a second storage compartment 102, wherein, in order to facilitate storage, the second storage compartment 102 is also A slide rail 4 is provided, through which a drawer can be installed. Among them, the air-cooled refrigeration equipment of this embodiment has been improved on the air duct assembly 2 and the partition 3 respectively, as follows:

For the air duct assembly 2, the air duct assembly 2 in this embodiment includes a cover plate 21, a foam body 22, a first fan 23 and a second fan 24, and the cover plate 21 is provided with a The first air outlet 211 and the first air return port 212 in the chamber 101, the cover plate 21 is provided with a second air outlet 213 and a second air return port 214 located in the second storage compartment 102; The foam body 22 is arranged on the cover plate 21, and the return air cavity (not marked), the first air supply channel 201 and the second air supply channel 202 are formed in the foam body 22 in order, and the first air supply channel 201 The air outlet 212 and the second air return port 214 communicate with the return air cavity, the first air outlet 211 communicates with the first air supply channel, and the second air outlet 213 communicates with the second air supply channel. channel; the first fan 23 is arranged in the air return cavity, the second fan 24 is arranged between the second air supply channel and the second air outlet 213, and the evaporator 10 is attached to lean against the back of the foam body 22 and cover the first air supply channel and the second air supply channel. Specifically, the air duct assembly 2 in the air-cooled refrigeration equipment in this embodiment is equipped with two fans for air supply, wherein the first fan 23 is used to supply air to the first storage compartment 101 and control the air flow of the compartment. temperature, and the second blower fan 24 is used to send air to the second storage compartment 102 and control the temperature of the compartment. In this way, the air duct assembly 2 does not need to be equipped with a damper for temperature control. The overall thickness of the air duct assembly 2 effectively increases the storage space inside the box body 1. On the other hand, the fan will not be frozen by frost during operation, ensuring operational reliability. Moreover, during the control process , by controlling the start and stop of two fans to control the temperature of the corresponding compartment, which effectively simplifies the control process. Wherein, in actual use, the first storage compartment 101 can be configured as a refrigerator, and the second storage compartment 102 can be used as a temperature-changing room or a freezer, and the first storage compartment 101 is located in the second storage compartment. Above the storage compartment 102, the return air of the first storage compartment 101 and the second storage compartment 102 enters the return air cavity, and the first fan 23 blows the return air The gas in the air cavity is blown out toward the bottom of the evaporator 10 and enters the first air supply channel, and the gas exchanges heat with the evaporator 10 while the first air supply channel flows upwards, partly The gas flowing in the first air supply channel is output from the first air outlet 211 into the first storage compartment 101, and the remaining gas flowing in the first air supply channel enters into the second storage compartment. flow downward in the air supply channel and continue to exchange heat with the evaporator 10, the second fan 24 outputs the gas flowing in the second air supply channel from the second air outlet 213 to the second In the storage compartment 102, during the gas circulation process, the return air of the two compartments is blown to the bottom of the evaporator 10 by the first fan 23, thereby ensuring that the return air flow can flow from the bottom of the evaporator 10 to the evaporator. 10 for heat exchange, and the airflow blown from the first blower 23 will flow upward from the bottom of the evaporator 10 along the first air supply channel, and the airflow flowing in the first air supply channel exchanges heat with the evaporator 10 to form The cold air flow, part of the cold air flow will be output from the first air outlet 211 and enter the first storage compartment 101 for refrigeration. The evaporator 10 exchanges heat to form an airflow with a lower temperature, which is finally sent into the second storage compartment 102 through the second air outlet 213 under the action of the second fan 24 . And after the temperature of one of the storage compartments reaches the set requirement, the fan corresponding to the storage compartment stops running, so that the temperatures of the two storage compartments can be independently controlled. Wherein, the foam body 22 includes a first foam 221 and a second foam 222 connected together, the air return cavity is formed between the first foam and the second foam, the first blower 23 and the The second fan 24 is disposed on the second foam 222 , and the first air supply channel and the second air supply channel are formed on the back of the second foam 222 . In order to facilitate communication with the gas flow path, the upper part of the first foam 221 is provided with a first gap 2213 communicating with the return air cavity, and the lower part of the first foam 221 is provided with a first opening 2213 communicating with the return air cavity. Two notches 2212, the first notch 2213 is connected to the first air return port, the second notch 2212 is connected to the second air return port, and a gap is formed between the first foam 221 and the second foam 222 An air passage, the second foam 222 is provided with an air vent 2211 for communicating with the first air outlet 211 , and the air vent 2211 communicates with the second air supply passage through the air passage. Preferably, in order to ensure uniform air supply in the first storage compartment 101, the upper edge of the second foam 222 forms several ventilation gaps 2221 communicating with the first air supply channel, and the first air outlets 211 are distributed in the The edge of the cover plate 21, the ventilation gap 2221 communicates with the corresponding first air outlet 211, in this way, through the multiple first air outlets 211 distributed on the edge of the cover plate 21, the side air can be realized. And effectively enhance the uniformity of cooling capacity distribution to ensure the cooling effect. In addition, grooves are arranged on the back side of the second foam 222, and spacers 203 are arranged in the grooves, and the spacers 203 separate the grooves to form the first air supply channel 201 and the second air supply channel 201. Wind channel 202 .

The control method of the air-cooled refrigeration equipment of the present invention includes: adjusting the temperature of the first storage compartment 101 and the second storage compartment 102 by controlling the power on and off of the first fan 23 and the second fan 24 . Specifically, when the temperature of the first storage compartment 1-1 is higher than the set value, the first fan 23 starts until the temperature of the first storage compartment 101 reaches the set value; When the temperature of 102 is higher than the set value, the second fan 24 is activated until the temperature of the second storage compartment 102 reaches the set value.

By configuring two independent fans in the air duct assembly to control the temperature of the two storage compartments, there is no need to configure additional air doors to control cooling, which can effectively reduce the thickness of the air duct assembly and reduce the box occupied by the air duct assembly. The space inside the body effectively increases the storage space and improves the space utilization rate; in addition, the fan is in the running state for a long time, and the control failure will not occur due to the freezing of the damper, which simplifies the control process and improves the efficiency. Use reliability.

At the same time, the improvement for the cooperation between the partition 3 and the slide rail 4 is: the partition 3 is arranged between the two slide rails 4 . Specifically, the partition 3 is indirectly installed in the box body 1 through the slide rail 4, and the partition 3 and the slide rail 4 are assembled and matched, so that the distance between the drawer installed on the slide rail 4 and the partition 3 can be reduced. The drawer slides into the slide rail 4 and is in a closed state, so that the partition 3 can more effectively cover the upper opening of the drawer to obtain better sealing. Wherein, in order to ensure normal and effective air supply and cooling when the drawer is closed, a recessed structure 33 is formed on the lower surface of the rear end of the partition 3, and the second air outlet 213 is located in the recessed structure 33, specifically, in After the drawer slides into the inner end of the slide rail 4, the second air outlet 213 is located above the upper opening of the drawer, and the second air outlet 213 is located in the recessed structure 33 on the partition 3, ensuring that the second air outlet 213 will not The sliding of the drawer is hindered, and at the same time, the cold air output from the second air outlet 213 directly enters the drawer. Wherein, the partition 3 can be installed on the slide rail 4 in a clamping manner. Specifically, tongues 31 are respectively provided on the bottoms of both sides of the partition 3, and a slot 41 is provided on the slide rail 4, and the plug-in The tongue 31 is inserted into the corresponding slot 41, and the vertical direction of the partition 3 can be limited by the cooperation of the tongue 31 and the slot 41. At the same time, first claws 32 are respectively provided on both sides of the front end of the partition 3, The front end of the slide rail 4 is provided with a second claw 42 , the first claw 32 and the second claw 42 are snapped together, and the first claw 32 cooperates with the second claw 42 .

Compared with the prior art, the advantages and positive effects of the present invention are: by installing the partition on the slide rail, the distance between the partition and the drawer can be smaller, and the gap between the partition and the drawer can be reduced. During use, the drawer can be better sealed through the partition, so that the cooling effect of the items in the drawer is better and the user experience is improved.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: it can still be Modifications are made to the technical solutions described in the foregoing embodiments, or equivalent replacements are made to some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims (9)

1. An air-cooled refrigeration device, comprising a box body and a door body connected together, the box body is provided with an air duct assembly, a partition and an evaporator, and the partition partitions the inside of the box body into a first The storage compartment and the second storage compartment are characterized in that the air duct assembly includes a cover plate, a foam body, a first fan and a second fan, and the cover plate is provided with The first air outlet and the first air return opening in the compartment, the second air outlet and the second air return opening in the second storage compartment are arranged on the cover plate; the foam body is arranged on the On the cover plate, a return air cavity, a first air supply channel and a second air supply channel connected in sequence are formed in the foam body, and the first air return port and the second air return port are connected with the return air cavity The first air outlet communicates with the first air supply channel, the second air outlet communicates with the second air supply channel; the first fan is arranged in the return air cavity, and the The second fan is arranged between the second air supply channel and the second air outlet, and the evaporator is attached to the back of the foam body and covers the first air supply channel and the second air supply channel. wind channel. 2. The air-cooled refrigeration device according to claim 1, characterized in that, the foam body comprises a first foam and a second foam connected together, forming a gap between the first foam and the second foam The air return cavity, the first fan and the second fan are arranged on the second foam, the first air supply channel and the second air supply channel are formed on the second foam . 3. The air-cooled refrigeration equipment according to claim 2, characterized in that, the upper part of the first foam is provided with a first gap communicating with the return air cavity, and the lower part of the first foam is provided with a communication gap. The second notch of the return air cavity, the first notch is connected with the first return air port, and the second notch is connected with the second return air port. 4. The air-cooled refrigerating equipment according to claim 2, wherein an air channel is formed between the first foam and the second foam, and the second foam is provided with a channel for communicating with the first foam. An air outlet of the air outlet, the air outlet communicates with the second air supply channel through the air channel. 5. The air-cooled refrigeration device according to claim 2, wherein the upper edge of the second foam forms several ventilation gaps communicating with the first air supply channel, and the first air outlets are distributed in the The edge of the cover plate, the ventilation gap communicates with the corresponding first air outlet. 6. The air-cooled refrigeration device according to claim 2, wherein a groove is arranged on the back side of the second foam, a spacer is arranged in the groove, and the spacer divides the groove The first air supply channel and the second air supply channel are formed separately. 7. The air-cooled refrigeration device according to claim 1, wherein the first storage compartment is located above the second storage compartment; the first storage compartment and the The return air from the second storage compartment enters the return air cavity, and the first blower blows the gas in the return air cavity toward the bottom of the evaporator and enters the first air supply chamber. The air channel, the gas exchanges heat with the evaporator while the first air supply channel flows upward, and part of the gas flowing in the first air supply channel is output from the first air outlet to the second In a storage compartment, the remaining air flowing in the first air supply channel enters the second air supply channel to flow downward and continue to exchange heat with the evaporator, and the second fan blows the first air supply The gas flowing in the second air supply channel is output from the second air outlet to the second storage compartment. 8. A control method for air-cooled refrigeration equipment according to any one of claims 1-7, characterized by comprising: adjusting the first storage room by controlling the power on and off of the first fan and the second fan compartment and the temperature of the second storage compartment. 9. The method for controlling air-cooled refrigeration equipment according to claim 8, wherein the control of turning on and off the first fan and the second fan is specifically: when the temperature of the first storage compartment is higher than the set When the value is fixed, the first fan starts until the temperature of the first storage room reaches the set value; when the temperature of the second storage room is higher than the set value, the second fan starts until the temperature of the second storage room reaches the set value. The temperature of the chamber reaches the set value.