CN219199554U - Evaporator and air conditioner - Google Patents

Abstract

The utility model relates to the technical field of household appliances, and provides an evaporator and an air conditioner. The evaporator provided by the utility model comprises a plurality of radiating fins and at least one radiating pipe, wherein the radiating fins are sequentially arranged along the flowing direction of a refrigerant; the at least one radiating pipe penetrates through the plurality of radiating fins, the radiating pipe comprises a first section and a second section which are sequentially connected along the flowing direction, the cross-sectional area of a refrigerant flow passage in the first section is smaller than that of the refrigerant flow passage in the second section, and therefore the flow rate of the first section is smaller than that of the second section. According to the evaporator and the air conditioner provided by the utility model, the radiating pipe comprises the first section and the second section which are sequentially connected along the flowing direction of the refrigerant, the flow rate of the refrigerant in the first section is smaller than that of the refrigerant in the second section, and the technical problem of uneven heat exchange of the evaporator in the prior art is solved.

Description

Evaporator and air conditioner

Technical Field

The utility model relates to the technical field of household appliances, in particular to an evaporator and an air conditioner.

Background

With the improvement of the living standard of people, the air conditioner is widely applied. The air conditioner includes an indoor unit including an evaporator and an expansion valve (or throttle member), and an outdoor unit including a compressor and a condenser. The refrigeration principle of an air conditioner is that a compressor compresses a gaseous refrigerant into a high-temperature high-pressure gaseous refrigerant, the gaseous refrigerant is sent to a condenser to be cooled, the gaseous refrigerant is cooled to be changed into a medium-temperature high-pressure liquid refrigerant, the medium-temperature high-pressure liquid refrigerant is throttled by an expansion valve (or a throttle component) and then is depressurized into a low-temperature low-pressure gas-liquid mixture, and the low-temperature low-pressure gas-liquid mixture is vaporized by an evaporator to absorb heat in air, so that the gaseous refrigerant becomes gaseous, and refrigeration is realized by absorbing the heat in the air.

The evaporator of the prior art may include a heat radiating fin and a heat radiating tube (or may be called a coil) disposed on the heat radiating fin, for example, the refrigerant may exchange heat with the external atmosphere through the heat radiating fin after entering the heat radiating tube of the evaporator in a refrigeration mode, however, when the refrigerant flows in from one end of the heat radiating tube and then flows out from the other end of the heat radiating tube, since the tube diameters of the heat radiating tube are uniform, a phenomenon that the temperatures are not uniform occurs at different positions of the heat radiating tube along the extending direction of the heat radiating tube, for example, the temperature of the refrigerant inflow end (heat radiating fin) of the evaporator is low, the temperature of the refrigerant outflow end (heat radiating fin) of the evaporator is high, and the uniformity of heat exchange of the evaporator is affected.

Disclosure of Invention

The utility model provides an evaporator and an air conditioner, which are used for solving the technical problem of uneven heat exchange of the evaporator in the prior art and improving the uniformity of heat exchange of the evaporator.

The present utility model provides an evaporator comprising: the radiating fins are sequentially arranged along the flowing direction of the refrigerant; at least one cooling tube wears to locate a plurality of fin, and the cooling tube includes first section and the second section that connects gradually along the flow direction, and the cross sectional area of the refrigerant runner in the first section is less than the cross sectional area of the refrigerant runner in the second section to make the flow of first section be less than the flow of second section.

According to one embodiment of the utility model, the inner diameter of the first section is smaller than the inner diameter of the second section.

According to one embodiment of the utility model, the refrigerant flow control device further comprises a third section, the first section is connected with the second section through the third section, and the inner diameter of the third section is gradually expanded along the flow direction and is used for transiting the flow rate of the refrigerant flowing from the first section to the second section.

According to one embodiment of the utility model, the first section is located at the refrigerant inflow end of the radiating pipe and the second section is located at the refrigerant outflow end of the radiating pipe.

According to one embodiment of the utility model, the first section has an inner diameter ranging between one third and one half of the inner diameter of the second section.

According to one embodiment of the present utility model, the heat radiating fins are ten.

According to one embodiment of the utility model, the number of radiating pipes is two.

According to one embodiment of the utility model, the radiating pipe is made of copper pipe.

According to one embodiment of the present utility model, the radiating pipe has an elliptical cross section.

The present utility model also provides an air conditioner, comprising: the indoor unit comprises the evaporator; and the outdoor unit is connected with the indoor unit.

According to the evaporator and the air conditioner provided by the utility model, the radiating pipe comprises the first section and the second section which are sequentially connected along the flowing direction of the refrigerant, the flow rate of the refrigerant in the first section is smaller than that of the refrigerant in the second section, and the difference of the flow rates can compensate the temperature difference generated in the heat exchange process of the refrigerant, so that the temperatures at different positions in the extending direction of the radiating pipe are basically equal, the temperature difference can be reduced, the heat exchange uniformity of the evaporator is improved, and the technical problem of nonuniform heat exchange of the evaporator in the prior art is solved.

In addition, because the temperature of the refrigerant inflow end of the evaporator in the prior art is lower, the condensation point is easy to reach, so that the condensation phenomenon is easy to occur, and the temperature of the refrigerant outflow end of the evaporator is higher, and the condensation point is difficult to reach, so that the condensation phenomenon is difficult to occur.

Drawings

In order to more clearly illustrate the utility model or the technical solutions of the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the utility model, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic view of an evaporator of the present utility model.

Fig. 2 is an exploded view of the radiating pipe of the present utility model.

Fig. 3 is a perspective view of a radiating pipe according to the present utility model.

Reference numerals:

100. a heat radiation fin; 200. a heat radiating pipe; 201. a first section; 202. a second section; 203. a third section; 210. a refrigerant inflow end; 220. a refrigerant outflow end; F. the direction of flow of the refrigerant.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the present utility model more apparent, the technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present embodiment, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present embodiment and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present embodiment.

Furthermore, the terms "first," "second," and the like, 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. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present embodiment, the meaning of "plurality" is at least two, for example, two, three, etc., unless explicitly defined otherwise.

In this embodiment, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and include, for example, either permanently connected, removably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present embodiment can be understood by those of ordinary skill in the art according to the specific circumstances.

Fig. 1 to 3 show an evaporator and an air conditioner provided by the present utility model, and as can be seen from the drawings, the evaporator provided by the present utility model includes a plurality of heat radiating fins 100 and at least one heat radiating pipe 200, the plurality of heat radiating fins 100 are sequentially arranged along a flow direction F of a refrigerant; at least one radiating pipe 200 is installed through the plurality of radiating fins 100, and the radiating pipe 200 includes a first section 201 and a second section 202 connected in sequence along a flow direction F, and a cross-sectional area of a refrigerant flow passage in the first section 201 is smaller than a cross-sectional area of a refrigerant flow passage in the second section 202, so that a flow rate of the first section 201 is smaller than a flow rate of the second section 202.

According to the evaporator and the air conditioner provided by the utility model, the radiating pipe 200 comprises the first section 201 and the second section 202 which are sequentially connected along the flowing direction F of the refrigerant, the flow rate of the refrigerant in the first section 201 is smaller than that of the refrigerant in the second section 202, and the difference of the flow rates can compensate the temperature difference generated in the process of heat exchange of the refrigerant, so that the temperatures at different positions in the extending direction of the radiating pipe 200 are basically equal, the temperature difference can be reduced, the heat exchange uniformity of the evaporator is improved, and the technical problem of nonuniform heat exchange of the evaporator in the prior art is solved.

In addition, since the temperature of the refrigerant inflow end 210 of the evaporator in the prior art is low, the condensation point is easily reached, so that the condensation phenomenon is easily generated, and the temperature of the refrigerant outflow end 220 of the evaporator is high, so that the condensation point is not easily generated.

As shown in fig. 1, in the present embodiment, the heat dissipation fins 100 may be ten fins, the heat dissipation fins 100 may be made of aluminum foil, and the heat dissipation fins 100 may be called aluminum foil fins; the number of the radiating pipes 200 may be two, the radiating pipes 200 may be made of copper pipes and the cross section may be elliptical.

It can be understood that the refrigerant gradually exchanges heat with the outside through the heat dissipation fins 100 after entering the heat dissipation tube 200, so that the temperature of the refrigerant inflow end 210 of the heat dissipation tube 200 is different from the temperature of the refrigerant outflow end 220 of the heat dissipation tube 200, and therefore, the temperature of the two ends of the evaporator is different, and the technical problem of uneven heat exchange exists, wherein the temperature of the refrigerant inflow end 210 of the evaporator is lower than the temperature of the refrigerant outflow end 220 of the evaporator, and the refrigerant inflow end 210 of the evaporator easily reaches the condensation point, so that the problem of condensation easily occurs at the refrigerant inflow end 210 of the evaporator. According to the utility model, the inner diameter of the first section 201 is set to be larger than that of the second section 202, and the temperature difference is improved by changing the flow, so that compared with the prior art, the pipe diameter of the first section 201 is thinner, the temperature of the refrigerant is higher, and the refrigerant is not easy to condense.

In some embodiments, the radiating pipe 200 may include a first section 201, a second section 202, a fourth section, and a fifth section that are sequentially connected in the flow direction F of the refrigerant and sequentially decrease in inner diameter. The specific length of the radiating pipe 200 may be set according to the length of the evaporator. For example, the longer the length of the evaporator, the more the number of sections of the radiating pipe 200 may be set accordingly.

According to one embodiment of the utility model, the inner diameter of the first section 201 is smaller than the inner diameter of the second section 202.

In this embodiment, the range of the inner diameter of the first section 201 may be between one third and one half of the range of the inner diameter of the second section 202.

According to one embodiment of the present utility model, the first section 201 may be located at the refrigerant inflow end 210 of the radiating pipe 200, and the second section 202 may be located at the refrigerant outflow end 220 of the radiating pipe 200.

In specific implementation, the temperature difference between two ends of the radiating pipe 200 is the largest, and through the arrangement of the structure, the temperature difference can be further reduced, and the uniformity of heat exchange of the evaporator is improved.

According to an embodiment of the present utility model, the evaporator may further comprise a third section 203, the first section 201 being connected to the second section 202 by the third section 203, the third section 203 having an inner diameter which is gradually expanding in the flow direction F for transitioning the flow rate of the refrigerant flowing from the first section 201 to the second section 202.

In particular, third section 203, or transition section, acts as a transition to prevent sudden changes in flow rate as refrigerant flows from first section 201 to second section 202.

In this embodiment, the inner diameter of one end of the third section 203 may be the same as the inner diameter of the first section 201, and the inner diameter of the other end of the third section 203 may be the same as the inner diameter of the second section 202.

In summary, according to the present utility model, based on the existing evaporator, the single pipe diameter of the heat dissipation pipe 200 is configured to be composed of copper pipes with two different pipe diameters, the thinner copper pipe can be used for the refrigerant inflow end 210, and the thicker copper pipe can be used for the refrigerant outflow end 220, so that the flow difference exists between the refrigerant inflow end 210 and the refrigerant outflow end 220, so as to compensate the temperature difference generated by the flowing heat exchange of the refrigerant (refrigerant), realize the uniform heat exchange at both ends of the evaporator, and improve the condensation problem of the refrigerant inflow end 210 of the evaporator.

The utility model also provides an air conditioner, which comprises an indoor unit and an outdoor unit, wherein the indoor unit comprises the evaporator in the embodiment, and the outdoor unit is connected with the indoor unit. The specific structure, working principle and beneficial effects of the evaporator are the same as those of the above embodiments, and are not described here again.

According to one embodiment of the present utility model, the indoor unit may further include a receiving member, a condensate water absorbing member, and an air intake fan, the receiving member may be in a disc shape or may be called a water pan, the receiving member being disposed below the evaporator and having an evaporator condensate water receiving chamber; the condensed water cooling capacity absorbing part is arranged on the bearing part; the air inlet fan can be an axial flow fan and is positioned below the evaporator, and in the refrigeration mode, the air inlet fan is used for sending outdoor air to the evaporator through the condensed water cooling energy absorbing component.

The indoor unit and the air conditioner provided by the utility model have the evaporator condensate water receiving cavity, the condensate water can be received, the waste of water resources caused by the condensate water falling to the ground and the like can be avoided, in addition, the condensate water cooling capacity absorbing part can absorb the cold capacity of the condensate water, so that the temperature of the condensate water cooling capacity absorbing part is lower, in a refrigeration mode, the air inlet fan can send outdoor air to the evaporator through the condensate water cooling capacity absorbing part, thereby reducing the temperature of the outdoor air twice, the outdoor air is once reduced by the condensate water cooling capacity absorbing part, and the outdoor air is once reduced by the evaporator, namely, the air is precooled through the condensate water cooling capacity absorbing part when in heat exchange with the evaporator, so that the energy consumed by the evaporator is lower in the refrigeration mode, the utilization rate of the energy can be improved, and the technical problems that the waste of the water resources and the cold capacity of the condensate water cannot be effectively utilized due to the fact that the condensate water is not treated in the prior art are solved, and the water resources and the energy are saved are solved.

It can be understood that the condensed water generated on the surface of the evaporator has a temperature lower than that of the indoor air, so that if the condensed water is directly discharged outdoors, the cold energy of the condensed water cannot be effectively utilized, thereby causing energy loss.

In one embodiment of the present utility model, the condensed water cooling amount absorbing member may be a drain pipe, an end of which communicates with the evaporator condensed water receiving chamber, for example, an end of which is connected to a bottom of the receiving member, and the drain pipe may be made of a metallic material having good thermal conductivity, such as a copper pipe.

The drain pipe can drain the water in the condensed water receiving cavity of the evaporator to the outside, so that the water can be conveniently taken by a user; in addition, after the condensed water formed on the surface of the evaporator falls to the bearing part, the condensed water flows through the drain pipe to realize heat exchange with the drain pipe, so that the contact area between the condensed water and the drain pipe can be increased, the heat exchange efficiency is improved, and the technical problem of low cold utilization rate of the condensed water is solved.

In this embodiment, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact through an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "manner," "particular modes," or "some modes," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or mode is included in at least one embodiment or mode of the embodiments of the present utility model. In this specification, the schematic representations of the above terms are not necessarily directed to the same embodiment or manner. Furthermore, the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or ways. Furthermore, various embodiments or modes and features of various embodiments or modes described in this specification can be combined and combined by those skilled in the art without mutual conflict.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims (10)

1. An evaporator, comprising:

a plurality of heat radiating fins (100) which are arranged in sequence along the flow direction (F) of the refrigerant;

at least one cooling tube (200) wears to locate a plurality of radiating fin (100), cooling tube (200) are including following first section (201) and second section (202) that flow direction (F) connects gradually, the cross sectional area of refrigerant runner in first section (201) is less than the cross sectional area of refrigerant runner in second section (202), so that the flow of first section (201) is less than the flow of second section (202).

2. An evaporator according to claim 1, wherein the inner diameter of the first section (201) is smaller than the inner diameter of the second section (202).

3. The evaporator according to claim 2, further comprising a third section (203), the first section (201) being connected to the second section (202) by the third section (203), an inner diameter of the third section (203) being arranged gradually expanding in the flow direction (F) for transitioning a flow rate of the refrigerant flowing from the first section (201) to the second section (202).

4. An evaporator according to any one of claims 1-3, characterized in that the first section (201) is located at a refrigerant inflow end (210) of the radiating pipe (200), and the second section (202) is located at a refrigerant outflow end (220) of the radiating pipe (200).

5. An evaporator according to any one of claims 1 to 3, wherein the first section (201) has an inner diameter ranging between one third and one half of the inner diameter of the second section (202).

6. An evaporator according to any one of claims 1 to 3, wherein the heat radiating fins (100) are ten pieces.

7. An evaporator according to any one of claims 1 to 3, characterized in that the radiating pipes (200) are two.

8. An evaporator according to any one of claims 1 to 3, wherein the radiating pipe (200) is made of copper pipe.

9. The evaporator according to claim 1, wherein the radiating pipe (200) has an elliptical cross section.

10. An air conditioner, comprising:

an indoor unit comprising the evaporator according to any one of claims 1 to 9;

and the outdoor unit is connected with the indoor unit.

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