Indoor unit of air conditioner

Abstract

The utility model provides an indoor unit of an air conditioner. The air conditioner indoor unit comprises a shell provided with a fresh air pipe inlet; one end of the fresh air pipe is connected with the fresh air pipe inlet, and the fresh air pipe is configured to introduce fresh air of the outdoor environment; and the first heat exchanger is arranged in the fresh air pipe and is configured to enable condensate water generated during refrigeration of the air conditioner indoor unit to exchange heat with the fresh air so as to reduce the temperature of the fresh air. According to the air conditioner indoor unit, the condensate water generated when the air conditioner indoor unit conducts refrigeration is used for cooling fresh air introduced into the outdoor environment, the influence of the fresh air on the indoor environment temperature can be effectively reduced, the refrigeration effect of the air conditioner indoor unit is guaranteed, and the use experience of a user is improved; through the overall structure arrangement of the first heat exchanger, the condensate water and the fresh air can fully exchange heat, the cooling effect on the fresh air can be improved, meanwhile, the cooling capacity carried by the condensate water can be fully utilized, and waste of the cooling capacity is effectively avoided.

Description

Technical Field

[0001] The utility model relates to the field of household electrical appliances, in particular to an indoor unit of an air conditioner. Background Art

[0002] With the development of society and the continuous improvement of people's living standards, various air conditioning devices have become one of the indispensable electrical equipment in people's daily lives. Various air conditioning devices can help people reach a temperature they can adapt to when the ambient temperature is too high or too low. Current air conditioning devices mainly include various types of air conditioners and fans.

[0003] As people's demands for home environment continue to increase, the demand for fresh air function of air conditioners is increasing, and the problems existing in the use of fresh air function are becoming more and more prominent. For example, when fresh air is turned on in summer, the high-temperature air from the outdoor environment will be directly introduced into the indoor environment, increasing the convection between the indoor and outdoor environments, and also introducing the heat from the outdoor environment into the indoor environment, which is easy to cause temperature fluctuations in the indoor environment, affecting the cooling effect of the indoor unit of the air conditioner and affecting the user experience.

[0004] The existing solutions generally arrange the indoor fresh air outlet at the air inlet of the air conditioner indoor unit for heat exchange, and cool the incoming fresh air through the heat exchanger of the air conditioner indoor unit. Although this method solves the problem of low temperature of the fresh air outlet, the overall heat exchange of the indoor environment is still reduced. Therefore, the ambient temperature of the indoor environment is still affected. Utility Model Content

[0005] One purpose of the utility model is to utilize condensed water generated during refrigeration of the indoor unit of the air conditioner to cool down the fresh air introduced from the outdoor environment, thereby reducing the influence of the fresh air on the indoor environment temperature.

[0006] A further purpose of the utility model is to fully exchange heat between condensed water and fresh air, thereby improving the cooling effect on the fresh air and making full use of the cold energy carried by the condensed water, effectively avoiding waste of cold energy.

[0007] In particular, the utility model provides an air conditioner indoor unit, comprising:

[0008] The shell is provided with a fresh air duct inlet;

[0009] A fresh air duct, one end of which is connected to the fresh air duct inlet and is configured to introduce fresh air from an outdoor environment; and

[0010] The first heat exchanger is arranged in the fresh air duct and is configured to exchange heat between condensed water generated when the indoor unit of the air conditioner is cooled and the fresh air, thereby reducing the temperature of the fresh air.

[0011] Optionally, the first heat exchanger comprises a shell, a cavity is defined inside the shell, and

[0012] A condensate inlet is provided at the upper end of the shell to allow the condensate to flow into the cavity;

[0013] A condensed water outlet is provided at the lower end of the shell to allow the condensed water to flow out of the cavity.

[0014] Optionally, a fresh air inlet and a fresh air outlet are respectively provided at the left and right ends of the shell, so that the fresh air flows into the cavity to exchange heat with the condensed water, and then flows out of the cavity after the heat exchange.

[0015] Optionally, the condensate inlet is arranged on the left side of the upper end of the shell, and the condensate outlet is arranged on the right side of the lower end of the shell;

[0016] The fresh air inlet is arranged at the left end of the shell, and the fresh air outlet is arranged at the right end of the shell.

[0017] Optionally, a plurality of heat exchange fins are arranged in an alternating manner up and down inside the cavity to form a curved channel for condensed water and fresh air to pass through.

[0018] Optionally, a cavity is defined inside the housing, and

[0019] The shell comprises an air inlet grille, and an air inlet is formed on the air inlet grille to allow air from the indoor environment to enter the cavity.

[0020] Optionally, the air conditioner indoor unit further includes:

[0021] The second heat exchanger is disposed in the cavity and is configured to perform heat exchange on the air entering the cavity.

[0022] Optionally, the housing is further provided with a first air outlet and a second air outlet, and

[0023] The air heated by the second heat exchanger is sent to the indoor environment through the first air outlet, and the fresh air heated by the first heat exchanger is sent to the indoor environment through the second air outlet.

[0024] Optionally, the fresh air duct inlet is arranged below the air inlet grille.

[0025] The second air outlet is arranged below the first air outlet.

[0026] Optionally, the air conditioner indoor unit further includes:

[0027] The drain pipe is connected to the condensed water outlet and is configured to discharge the condensed water flowing out of the cavity to the outside of the indoor unit of the air conditioner.

[0028] The utility model relates to an indoor unit of an air conditioner, comprising: a shell body, which is provided with a fresh air duct inlet; a fresh air duct, one end of which is connected to the fresh air duct inlet and is configured to introduce fresh air from an outdoor environment; and a first heat exchanger, which is arranged in the fresh air duct and is configured to exchange heat with the fresh air when condensed water generated when the indoor unit of the air conditioner is cooling, so as to reduce the temperature of the fresh air. By utilizing the condensed water generated when the indoor unit of the air conditioner is cooling to cool the fresh air introduced from the outdoor environment, the influence of the fresh air on the indoor environment temperature can be effectively reduced, the cooling effect of the indoor unit of the air conditioner can be guaranteed, and the user experience can be improved.

[0029] Furthermore, in the indoor unit of the air conditioner of the utility model, the first heat exchanger includes an outer shell, a cavity is defined inside the outer shell, and a condensate inlet is provided at the upper end of the outer shell to allow the condensate to flow into the cavity; a condensate outlet is provided at the lower end of the outer shell to allow the condensate to flow out of the cavity; a fresh air inlet and a fresh air outlet are respectively provided at the left and right ends of the outer shell, so that the fresh air flows into the cavity and exchanges heat with the condensate, and flows out of the cavity after the heat exchange; the condensate inlet is arranged on the left side of the upper end of the outer shell, and the condensate outlet is arranged on the right side of the lower end of the outer shell; the fresh air inlet is arranged at the left end of the outer shell, and the fresh air outlet is arranged at the right end of the outer shell; a plurality of heat exchange fins are staggered up and down inside the cavity to form a curved channel for the condensate and the fresh air to pass through. The overall structural arrangement of the first heat exchanger enables the condensate and the fresh air to fully exchange heat, which not only improves the cooling effect on the fresh air, but also makes full use of the cold carried by the condensate to effectively avoid waste of cold.

[0030] Based on the detailed description of the specific embodiments of the present invention in combination with the accompanying drawings below, those skilled in the art will become more aware of the above and other purposes, advantages and features of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Hereinafter, some specific embodiments of the present invention will be described in detail in an exemplary and non-limiting manner with reference to the accompanying drawings. The same reference numerals in the accompanying drawings indicate the same or similar components or parts. It should be understood by those skilled in the art that these drawings are not necessarily drawn to scale. In the accompanying drawings:

[0032] Figure 1 It is a front structural schematic diagram of an air conditioner indoor unit according to an embodiment of the utility model;

[0033] Figure 2 is a schematic diagram of the side structure of an air conditioner indoor unit according to an embodiment of the utility model; and

[0034] Figure 3 The figure is a schematic diagram of the internal structure of a first heat exchanger in an indoor unit of an air conditioner according to an embodiment of the utility model. DETAILED DESCRIPTION

[0035] The present embodiment provides an air conditioner indoor unit, which cools down the fresh air introduced from the outdoor environment by utilizing the condensed water generated during refrigeration of the air conditioner indoor unit, thereby effectively reducing the impact of the fresh air on the indoor environment temperature, ensuring the cooling effect of the air conditioner indoor unit, and improving the user experience. Figure 1 1 is a front structural diagram of an air conditioner indoor unit 100 according to an embodiment of the utility model. Figure 2 FIG. 1 is a schematic diagram of the side structure of an air conditioner indoor unit 100 according to an embodiment of the present utility model. Figure 1 and Figure 2 As shown, the air conditioner indoor unit 100 of this embodiment may generally include: a housing 110 , a fresh air duct 113 and a first heat exchanger 120 .

[0036] Among them, a fresh air duct inlet 114 may be provided on the housing 110. One end of the fresh air duct 113 may be connected to the fresh air duct inlet 114, and configured to introduce fresh air from the outdoor environment. Specifically, a fresh air duct inlet 114 may be provided at the rear lower portion of the housing 110. In this way, the fresh air duct 113 can be easily connected to the fresh air duct inlet 114, the installation and setting are simpler, and the impact on the surrounding environment layout can be minimized.

[0037] The air conditioner indoor unit 100 can achieve the following purposes by introducing fresh air from the outdoor environment: you can enjoy the fresh air of nature without opening the windows, meet the health needs of the human body, and reduce energy loss; it can also effectively remove mold and odor, discharge the damp and dirty air in the room, eradicate odors, prevent mold and bacteria, and help extend the service life of buildings and furniture; it also helps to reduce noise pollution, and there is no need to endure the disturbance of opening windows, making the room quieter and more comfortable; it can also remove harmful gases, effectively remove formaldehyde, oil fume odor, carbon dioxide, cigarette smell, bacteria, viruses and other unhealthy or harmful gases, which can prevent family members from being seriously harmed; avoid opening windows to bring in a lot of dust, effectively filter outdoor air, and ensure that the air entering the room is clean.

[0038] However, the current air conditioner indoor unit will directly introduce high-temperature air from the outdoor environment into the indoor environment after turning on the fresh air in summer, which increases the convection between the indoor and outdoor environments. At the same time, it also introduces heat from the outdoor environment into the indoor environment, which can easily cause temperature fluctuations in the indoor environment, affect the cooling effect of the air conditioner indoor unit, and affect the user experience.

[0039] The first heat exchanger 120 in this embodiment can be arranged in the fresh air duct 113, and is configured to exchange heat between the condensed water generated by the air conditioner indoor unit 100 during cooling and the fresh air, thereby reducing the temperature of the fresh air. Specifically, the air conditioner indoor unit 100 generates condensed water during cooling. If the condensed water is directly discharged to the outdoor environment, the condensed water will carry the cold out of the room, resulting in a waste of cold. This embodiment uses the condensed water generated by the air conditioner indoor unit 100 during cooling to cool the fresh air introduced into the outdoor environment, thereby effectively reducing the impact of the fresh air on the indoor environment temperature, ensuring the cooling effect of the air conditioner indoor unit 100, and improving the user experience; and effectively utilizing the cold carried by the condensed water to avoid a waste of cold.

[0040] Figure 3 FIG. 1 is a schematic diagram of the internal structure of the first heat exchanger 120 in the indoor unit 100 of the air conditioner according to an embodiment of the present utility model. Figure 3 As shown, the first heat exchanger 120 may include a shell 121, and a cavity 122 is defined inside the shell 121. In addition, a condensed water inlet 123 is opened at the upper end of the shell 121 to allow condensed water to flow into the cavity 122; a condensed water outlet 124 is opened at the lower end of the shell 121 to allow condensed water to flow out of the cavity 122.

[0041] The left and right ends of the housing 121 are respectively provided with a fresh air inlet 125 and a fresh air outlet 126, so that the fresh air can flow into the cavity 122 and exchange heat with the condensed water, and then flow out of the cavity 122 after the heat exchange. The condensed water inlet 123 is arranged on the left side of the upper end of the housing 121, and the condensed water outlet 124 is arranged on the right side of the lower end of the housing 121. In addition, the fresh air inlet 125 is arranged at the left end of the housing 121, and the fresh air outlet 126 is arranged at the right end of the housing 121. In this way, both the condensed water and the fresh air can flow through the entire cavity 122, and the two can fully realize heat exchange during the flow. The condensed water enters from the upper end of the housing 121 and flows out from the lower end of the housing 121, which also conforms to its flow characteristics, so that the condensed water can be discharged smoothly afterwards.

[0042] In a preferred embodiment, a plurality of heat exchange fins 127 are arranged in an alternating manner up and down inside the cavity 122 to form a curved channel for condensed water and fresh air to pass through. Figure 3As shown, seven heat exchange fins 127 are arranged inside the cavity 122, and the seven heat exchange fins 127 extend from left to right in the order of: extending from bottom to top, extending from top to bottom, extending from bottom to top, extending from top to bottom..., and so on. It should be noted that the specific number of the above-mentioned heat exchange fins 127 and the order of staggered up and down are only for exemplification, and are not limitations of the present utility model. In some other embodiments, it can be set to other numbers or other staggered orders according to actual needs, but it must be ensured that the multiple heat exchange fins 127 staggered up and down can form a curved channel for condensed water and fresh air to pass through.

[0043] The arrangement of the plurality of heat exchange fins 127 can make the heat exchange process between the condensed water and the fresh air in the cavity 122 more complete, which can not only improve the cooling effect on the fresh air, but also make full use of the cold energy carried by the condensed water, effectively avoiding the waste of cold energy. In a specific embodiment, the entire material of the first heat exchanger 120 can be copper or aluminum. Preferably, the entire material of the first heat exchanger 120 can be copper.

[0044] The first heat exchanger 120 is made of copper because copper has good thermal conductivity, and its thermal conductivity is twice that of iron and three times that of aluminum. This means that copper can transfer heat faster and more effectively; copper has good corrosion resistance, which can ensure that it is not easily corroded by condensed water, thus ensuring its service life; copper is easy to process and can be made into different shapes and sizes as needed to meet the design requirements of the first heat exchanger 120; copper has stable quality, which can ensure the stable performance of the first heat exchanger 120 without leakage and other problems. In short, the overall material and structural setting of the first heat exchanger 120 can make the heat exchange between condensed water and fresh air more sufficient.

[0045] In a specific embodiment, a cavity (not shown in the figure) is defined inside the housing 110. In addition, the housing 110 includes an air inlet grille 115, and an air inlet 116 is provided on the air inlet grille 115 to allow air from the indoor environment to enter the cavity. The air conditioner indoor unit 100 may also include: a second heat exchanger (not shown in the figure), which is disposed in the cavity and configured to perform heat exchange on the air entering the cavity. In other words, the air from the indoor environment enters the cavity through the air inlet 116 and then exchanges heat through the second heat exchanger, and the fresh air from the outdoor environment enters the fresh air duct 113 and then exchanges heat through the first heat exchanger 120 in the fresh air duct 113.

[0046] As mentioned above, the air conditioner indoor unit 100 will produce condensed water during cooling. Specifically, during the cooling process of the air conditioner indoor unit 100, the refrigerant absorbs the heat in the room and discharges it to the outside through the process of compression and expansion, thereby cooling the indoor environment. In this process, the refrigerant will become a low-temperature and low-pressure state. At this time, it will absorb the heat in the room through the second heat exchanger as an evaporator, and also absorb the water vapor in the air. After the refrigerant absorbs the heat and water vapor in the room, it will become a high-temperature and high-pressure state, and then discharge these heat and water vapor to the outside through the condenser. In this process, due to the difference in temperature inside the air conditioner indoor unit 100, the water vapor will condense into water droplets between the second heat exchanger and the condenser, that is, condensed water is formed.

[0047] In a specific embodiment, the air conditioner indoor unit 100 may include: a water receiving pan, which may be arranged at the second heat exchanger and configured to collect and receive condensed water. It is necessary to provide a water receiving pan, which can avoid problems such as dripping in the air conditioner indoor unit 100 and can also ensure the working reliability of the second heat exchanger. The condensed water inlet 123 in this embodiment can be connected to the water receiving pan, so that the condensed water in the water receiving pan can enter the cavity 122 of the first heat exchanger 120 through the condensed water inlet 123. In addition, the air conditioner indoor unit 100 may include: a drain pipe (not shown in the figure), which is connected to the condensed water outlet 124 and configured to discharge the condensed water flowing out of the cavity 122 to the outside of the air conditioner indoor unit 100, so as to avoid the condensed water from affecting the indoor environment.

[0048] In a specific embodiment, the housing 110 may also be provided with a first air outlet 117 and a second air outlet 118. Furthermore, the air heated by the second heat exchanger is sent to the indoor environment through the first air outlet 117, and the fresh air heated by the first heat exchanger 120 is sent to the indoor environment through the second air outlet 118. In other words, the air in the indoor environment enters the cavity through the air inlet 116, exchanges heat through the second heat exchanger, and then the heat-exchanged air is sent to the indoor environment through the first air outlet 117. The fresh air from the outdoor environment enters the fresh air duct 113, exchanges heat through the first heat exchanger 120 in the fresh air duct 113, and then the heat-exchanged fresh air is sent to the indoor environment through the second air outlet 118.

[0049] like Figure 2 As shown, the fresh air duct inlet 114 can be arranged below the air inlet grille 115, and the second air outlet 118 can be arranged below the first air outlet 117. In other words, the air inlet grille 115 and the air inlet 116 can be arranged opposite to the first air outlet 117, and the fresh air duct 113 and the fresh air duct inlet 114 can be arranged corresponding to the second air outlet 118, so that the overall flow route of the air in the indoor environment and the fresh air in the outdoor environment can be smoother, thereby improving the air outlet effect and efficiency.

[0050] In fact, the housing 110 may include a front panel 111 and a rear panel 112, wherein the air inlet grille 115 may be disposed on the rear panel 112. A filter may be disposed at the air inlet 116 of the air inlet grille 115, so that the air entering the cavity through the air inlet 116 can be preliminarily filtered to improve the cleanliness of the interior of the air conditioner indoor unit 100 and the final air outlet. The first air outlet 117 and the second air outlet 118 may be disposed on the front panel 111.

[0051] In addition, the housing 110 may further include panels such as a top plate and a bottom plate, wherein the arrangement of the top plate and the bottom plate may make the air conditioner indoor unit 100 more integrated and more stable when the air conditioner indoor unit 100 is arranged in an indoor environment. The front panel 111 and the rear panel 112 of the air conditioner indoor unit 100 of this embodiment may be directly connected without additionally arranging a side panel. In some other embodiments, the housing 110 may further include a side panel, and the side panel may include a left side panel and a right side panel, which are respectively connected to the front panel 111 and the rear panel 112.

[0052] As mentioned above, the second heat exchanger is disposed in the cavity and configured to perform heat exchange on the air entering the cavity. The second heat exchanger can be disposed in the cavity near the air inlet 116, and the shape of the second heat exchanger can be matched with the air inlet 116, so that the air entering the cavity through the air inlet 116 can be completely heat exchanged by the second heat exchanger, thereby improving the heat exchange efficiency.

[0053] When the air conditioner indoor unit 100 operates in cooling mode, the air heat exchanged by the second heat exchanger is cold air, which can lower the temperature of the indoor environment after being sent to the indoor environment through the first air outlet 117, making the user feel cool. When the air conditioner indoor unit 100 operates in heating mode, the air heat exchanged by the second heat exchanger is hot air, which can raise the temperature of the indoor environment after being sent to the indoor environment through the first air outlet 117, making the user feel warm.

[0054] In a specific embodiment, the air conditioner indoor unit 100 can turn on the cooling mode or the heating mode after receiving a start trigger signal from the user. More specifically, the start trigger signal sent by the user through a display device, a voice device, a remote controller, or a mobile terminal bound to the air conditioner indoor unit 100 can be received. The mobile terminal can be a smart device that is easy to move, such as a smart phone, a tablet computer, etc.

[0055] In addition, an air supply fan (not shown in the figure) can also be provided in the cavity inside the housing 110, which is located in front of the second heat exchanger. The air after heat exchange in the second heat exchanger can be sent to the indoor environment through the first air outlet 117 by the air supply fan. The fan of the air conditioner indoor unit 100 can mainly include three types: centrifugal, cross-flow and axial flow. Among them, the air in the centrifugal fan is subjected to the centrifugal force, and a vacuum is generated in the center of the impeller. The inhaled air is turned 90° at the impeller inlet and enters the flow channel formed by the blades, and obtains kinetic energy and pressure energy under the action of the blades. The airflow thrown out from the blade channel enters the volute, and after being concentrated and guided, it is discharged from the outlet of the centrifugal fan.

[0056] A cross-flow fan can also be called a cross-flow fan. The airflow enters the blade grid radially from the opening of the impeller, passes through the inside of the impeller, and is discharged into the volute from the other side of the blade grid to form a working airflow. The airflow in the axial flow fan flows axially inside the impeller. The above three types of fans each have advantages and disadvantages and can be set according to actual conditions. However, no matter which type of fan is used, the air after heat exchange in the second heat exchanger can be sent to the indoor environment through the first air outlet 117 to adjust the temperature of the indoor environment.

[0057] The air supply fan may also be provided with a corresponding motor, configured to drive the air supply fan to rotate. And the air supply speed of the air conditioner indoor unit 100 can be adjusted by adjusting the speed of the motor driving the air supply fan. In a preferred embodiment, the air supply fan may be a cross-flow fan. This is because the axial length of the cross-flow fan is not limited, and the length of the impeller can be arbitrarily selected according to different usage needs. In addition, the air flow flows through the impeller and is affected by the force of the blades twice, so the air flow can reach a long distance and the air can be supplied relatively far. In addition, the cross-flow fan has no turbulence, uniform air output, and low noise, which can effectively improve the user experience.

[0058] In a specific embodiment, a horizontal swing blade and a vertical swing blade (not shown in the figure) may also be provided at the first air outlet 117. The vertical swing blade may be configured to adjust the left and right air outlet direction at the first air outlet 117, and the horizontal swing blade may be configured to adjust the up and down air outlet direction at the first air outlet 117. In a specific embodiment, the horizontal swing blade and the vertical swing blade are configured to adjust the specific posture according to the air supply mode. For example, the air supply mode may include a plurality of different air supply instructions, and the horizontal swing blade and the vertical swing blade may adjust the specific posture according to different air supply instructions.

[0059] More specifically, the specific postures of the vertical swing blades may include facing left, facing center, and facing right. The specific postures of the transverse swing blades include facing upward, facing center, and facing downward. In a preferred embodiment, the transverse swing blades and the vertical swing blades can also adjust the specific angles of the air outlet to achieve different air outlet volumes. For example, the vertical swing blades may have different air outlet angles when facing left. The transverse swing blades may have different air outlet angles when facing upward.

[0060] As for the specific posture of the horizontal swing blade, it should be noted that the horizontal swing blade faces upward, so that the air conditioner indoor unit 100 can discharge air upward, which is more suitable for the case where the air conditioner indoor unit 100 operates in the cooling mode. Since the air conditioner indoor unit 100 delivers cold air in the cooling mode, according to the characteristics of the cold air, it will gradually sink after being blown upward, so that the temperature of the entire indoor environment can be reduced. Cold air direct blowing prevention can also effectively prevent users from having headaches, colds, etc.

[0061] The horizontal swing blades face downward, so that the air conditioner indoor unit 100 can discharge air downward, which is more suitable for the case where the air conditioner indoor unit 100 operates in the heating mode. Since the air conditioner indoor unit 100 delivers hot air in the heating mode, according to the characteristics of hot air, it will gradually rise after being blown downward, so that the temperature of the entire indoor environment can be increased. The hot air blowing downward can also be blown to the user more effectively, making the user feel warm and comfortable.

[0062] In addition, an air outlet guide plate (not shown in the figure) may be provided at the first air outlet 117, configured to open and close the first air outlet 117. When the air outlet guide plate opens the first air outlet 117, the wind guided by the horizontal swing blade and the vertical swing blade can be sent to the indoor environment. If the air outlet guide plate closes the first air outlet 117, no wind will be blown out of the first air outlet 117. Generally, when the air conditioner indoor unit 100 is turned off, the air outlet guide plate can be made to close the first air outlet 117 to prevent external dust from entering the interior of the housing 110 through the first air outlet 117, thereby effectively ensuring the cleanliness of the interior of the housing 110.

[0063] In summary, the air conditioner indoor unit 100 of this embodiment includes: a shell 110, which is provided with a fresh air duct inlet 114; a fresh air duct 113, one end of which is connected to the fresh air duct inlet 114 and is configured to introduce fresh air from the outdoor environment; and a first heat exchanger 120, which is arranged in the fresh air duct 113 and is configured to exchange heat with the fresh air during the cooling of the air conditioner indoor unit 100 to reduce the temperature of the fresh air. By utilizing the condensed water generated during the cooling of the air conditioner indoor unit 100 to cool the fresh air introduced from the outdoor environment, the impact of the fresh air on the indoor environment temperature can be effectively reduced, the cooling effect of the air conditioner indoor unit 100 is guaranteed, and the user experience is improved.

[0064] Further, in the air conditioner indoor unit 100 of the present embodiment, the first heat exchanger 120 includes a shell 121, the shell 121 defines a cavity 122, and the upper end of the shell 121 is provided with a condensed water inlet 123, so that the condensed water flows into the cavity 122; the lower end of the shell 121 is provided with a condensed water outlet 124, so that the condensed water flows out of the cavity 122; the left and right ends of the shell 121 are respectively provided with a fresh air inlet 125 and a fresh air outlet 126, so that the fresh air flows into the cavity 122 and exchanges heat with the condensed water, and flows out of the cavity 122 after the heat exchange; the condensed water inlet 123 is provided with a condensed water outlet 124, so that the condensed water flows out of the cavity 122; The opening 123 is arranged on the left side of the upper end of the shell 121, and the condensate outlet 124 is arranged on the right side of the lower end of the shell 121; the fresh air inlet 125 is arranged at the left end of the shell 121, and the fresh air outlet 126 is arranged at the right end of the shell 121; a plurality of heat exchange plates 127 are staggered up and down inside the cavity 122 to form a curved channel for condensate and fresh air to pass through. The overall structural setting of the first heat exchanger 120 enables the condensate and the fresh air to fully exchange heat, which can not only improve the cooling effect of the fresh air, but also make full use of the cold carried by the condensate to effectively avoid waste of cold.

[0065] Those skilled in the art should understand that, unless otherwise specified, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", "clockwise", "counterclockwise", etc. in the embodiments of the present invention used to indicate orientation or positional relationships are merely for the convenience of describing and understanding the technical solution of the present invention, and do not indicate or imply that the referred device or component must have a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0066] The terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second", etc. may explicitly or implicitly include at least one of the features, that is, include one or more of the features. In the description of the present utility model, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined. When a feature "includes or contains" one or some of the features it covers, unless otherwise specifically described, this indicates that other features are not excluded and may further include other features.

[0067] Unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. A person of ordinary skill in the art should be able to understand the specific meanings of the above terms in the present utility model according to the specific circumstances.

[0068] In addition, in the description of this embodiment, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature between them. That is, in the description of this embodiment, the first feature being "above", "above", and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. The first feature being "below", "below", or "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0069] In the description of the present embodiment, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0070] At this point, those skilled in the art should recognize that, although multiple exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications that conform to the principles of the present invention can still be directly determined or derived from the contents disclosed in the present invention without departing from the spirit and scope of the present invention. Therefore, the scope of the present invention should be understood and recognized as covering all such other variations or modifications.

Claims

1. An air conditioner indoor unit, characterized in that: include: The housing is provided with a fresh air duct inlet; A fresh air duct, one end of which is connected to the fresh air duct inlet and is configured to introduce fresh air from the outdoor environment; as well as The first heat exchanger is disposed in the fresh air duct and is configured to exchange heat between condensed water generated during cooling of the indoor unit of the air conditioner and the fresh air to reduce the temperature of the fresh air.

2. The air conditioner indoor unit according to claim 1, characterized in that: The first heat exchanger includes a housing, a cavity is defined inside the housing, and A condensed water inlet is provided at the upper end of the shell so that the condensed water flows into the cavity; A condensed water outlet is provided at the lower end of the shell so that the condensed water can flow out of the cavity.

3. The air conditioner indoor unit according to claim 2, characterized in that: A fresh air inlet and a fresh air outlet are respectively provided at the left and right ends of the shell, so that the fresh air can flow into the cavity to exchange heat with the condensed water and then flow out of the cavity after the heat exchange.

4. The air conditioner indoor unit according to claim 3, characterized in that: The condensed water inlet is arranged on the left side of the upper end of the shell, and the condensed water outlet is arranged on the right side of the lower end of the shell; The fresh air inlet is arranged at the left end of the shell, and the fresh air outlet is arranged at the right end of the shell.

5. The air conditioner indoor unit according to claim 4, characterized in that: A plurality of heat exchange fins are arranged in an up-and-down staggered manner inside the cavity to form a curved channel for the condensed water and the fresh air to pass through.

6. The air conditioner indoor unit according to claim 1, characterized in that: The housing defines a cavity therein, and The shell comprises an air inlet grille, and an air inlet is formed on the air inlet grille to allow air from the indoor environment to enter the cavity.

7. The air conditioner indoor unit according to claim 6, characterized in that: Also includes: The second heat exchanger is disposed in the cavity and is configured to perform heat exchange on the air entering the cavity.

8. The air conditioner indoor unit according to claim 7, characterized in that: The housing is also provided with a first air outlet and a second air outlet, and The air heated by the second heat exchanger is sent to the indoor environment through the first air outlet, and the fresh air heated by the first heat exchanger is sent to the indoor environment through the second air outlet.

9. The air conditioner indoor unit according to claim 8, characterized in that: The inlet of the fresh air duct is arranged below the air inlet grille. The second air outlet is arranged below the first air outlet.

10. The indoor unit of the air conditioner according to claim 2, characterized in that: Also includes: A drain pipe is connected to the condensed water outlet and is configured to discharge the condensed water flowing out of the cavity to the outside of the indoor unit of the air conditioner.

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