Indoor unit of air conditioner

Abstract

The air conditioner indoor unit comprises a shell and a heat exchange core, a fresh air cavity and an exhaust cavity are formed in the shell, and the heat exchange core is arranged between the fresh air cavity and the exhaust cavity and is configured to enable fresh air in the fresh air cavity and exhaust air in the exhaust cavity to conduct heat exchange; the shell comprises a water receiving piece, the water receiving piece is located on the lower side of the heat exchange core so as to collect condensate water formed by the heat exchange core, and the water receiving piece is provided with a water outlet. According to the air conditioner indoor unit, water vapor in air is condensed and separated out on the heat exchange core in a concentrated mode, fresh air condensation is prevented from being formed in other areas in the air conditioner indoor unit at will, condensate water is collected in a concentrated mode through the water receiving piece and then discharged through the water outlet, the problem that the condensate water overflows out of the air conditioner indoor unit is solved, and the use experience is improved.

Description

Technical Field

[0001] This application relates to the technical field of air conditioners, and particularly to an indoor unit of an air conditioner. Background Art

[0002] When the fresh air module of the indoor unit of the air conditioner works, it introduces outdoor air into the room and simultaneously discharges indoor air to the outside, so as to achieve the purpose of ventilation and oxygen increase.

[0003] When the outdoor temperature is relatively low, the fresh air module introduces cold outdoor air into the room. After the surfaces of the shells of some functional components come into contact with the cold air, their temperatures decrease. When reaching the dew point, condensed water will form on the shell surfaces and flow out of the indoor unit of the air conditioner, affecting the user experience. Utility Model Content

[0004] The utility model provides an indoor unit of an air conditioner to solve the technical problem of condensate overflow inside the indoor unit of the air conditioner in the heating mode.

[0005] To achieve the above object, an indoor unit of an air conditioner provided in this application includes a housing and a heat exchange core. A fresh air cavity and an exhaust air cavity are provided inside the housing. The heat exchange core is disposed between the fresh air cavity and the exhaust air cavity and is configured to enable heat exchange between the fresh air in the fresh air cavity and the exhaust air in the exhaust air cavity.

[0006] The housing includes a water receiving member, which is located below the heat exchange core to collect the condensed water formed by the heat exchange core. The water receiving member is provided with a drain port.

[0007] Optionally, in one embodiment, the water receiving member includes two water receiving tray portions and a support structure portion connecting the two water receiving tray portions. The support structure portion is used to support the lower end of the heat exchange core. The two water receiving tray portions are respectively located inside the fresh air cavity and the exhaust air cavity and are disposed below the heat exchange core.

[0008] Optionally, in one embodiment, the heat exchange core has an inclined first side and a second side. The first side is located inside the fresh air cavity, and the second side is located inside the exhaust air cavity. The support structure portion supports the lower end connecting portion of the first side and the second side. One of the water receiving tray portions is located below the first side to collect the condensed water on the first side, and the other water receiving tray is located below the second side to collect the condensed water on the second side.

[0009] Optionally, in one embodiment, the support structure portion is provided with a support groove, and the lower end of the heat exchange core is located inside the support groove.

[0010] Optionally, in one embodiment, the support structure portion is provided with two water diversion grooves arranged staggeredly, one of the water diversion grooves communicating with one of the water receiving tray portions and the support groove, and the other water diversion groove communicating with the other water receiving tray portion and the support groove.

[0011] Optionally, in one embodiment, the two water diversion grooves are respectively formed on opposite sides of the support groove along its width direction; and / or, the bottom of the support groove is higher than the bottoms of the two water diversion grooves.

[0012] Optionally, in one embodiment, the support groove includes a first groove section and two second groove sections respectively located at both ends of the first groove section. The bottom of the first groove section is higher than the bottoms of the second groove sections. The bottom of the first groove section is used to abut and support the lower end of the heat exchange core, and the bottoms of the second groove sections and the lower end of the heat exchange core are spaced apart. Each second groove section communicates with one of the water diversion grooves.

[0013] Optionally, in one embodiment, the water diversion groove is opened on a side wall of the second groove section close to the first groove section. The second groove section is an inclined groove section, and the second groove section extends obliquely downward from its end far from the water diversion groove to an end close to the water diversion groove.

[0014] Optionally, in one embodiment, water retaining ribs are provided on the peripheries of the two water receiving tray portions, and the water retaining ribs are higher than the water receiving tray portions.

[0015] Optionally, in one embodiment, the heat exchange core is provided with a fresh air passage and an exhaust air passage separated from each other. The fresh air passage communicates with the fresh air cavity, and the exhaust air passage communicates with the exhaust air cavity;

[0016] and / or, the housing is provided with a fresh air inlet and a fresh air outlet communicating with the fresh air cavity. The housing is further provided with an exhaust air outlet and an exhaust air inlet communicating with the exhaust air cavity. The fresh air inlet and the exhaust air outlet are located above or below the fresh air outlet and the exhaust air inlet.

[0017] The air conditioner indoor unit provided by the present application completes the heat exchange between fresh air and exhaust air through the heat exchange core, and uses the heat exchange of cold and hot air to condense and precipitate the water vapor in the air more concentratedly on the heat exchange core, avoiding the formation of fresh air condensation arbitrarily in other areas of the air conditioner indoor unit. Therefore, a water receiving member for collecting condensed water is further arranged below the heat exchange core to centrally collect the condensed water generated on the surface of the heat exchange core, and the condensed water is uniformly discharged through the drain port, so as to avoid the problems of fresh air condensation and condensed water overflow in the air conditioner indoor unit. Description of the Drawings

[0018] To more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on the structures shown in these drawings.

[0019] Figure 1 It is a schematic internal three-dimensional structure diagram of the air conditioner indoor unit of the present application;

[0020] Figure 2 It is a front view of the internal structure of the air conditioner indoor unit of the present application;

[0021] Figure 3 It is a cross-sectional view of one perspective of the air conditioner indoor unit of the present application;

[0022] Figure 4 It is a half cross-sectional view of another perspective of the air conditioner indoor unit of the present application;

[0023] Figure 5 It is a top view of the water receiving part in the air conditioner indoor unit of the present application.

[0024] 1. Housing; 11. Fresh air chamber; 12. Exhaust air chamber; 13. Fresh air inlet; 14. Fresh air outlet; 15. Exhaust air inlet; 16. Exhaust air outlet; 2. Heat exchange core; 21. First side; 22. Second side; 3. Water receiving tray part; 31. Water retaining rib; 4. Support structure part; 41. Support groove; 411. First groove section; 412. Second groove section; 42. Water guiding groove.

[0025] The realization of the purpose, functional features and advantages of the present application will be further described in conjunction with the embodiments with reference to the drawings. Detailed Embodiments

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, rather than all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of protection of the present application.

[0027] The embodiments of the present application provide an air conditioner indoor unit to solve the problem of condensate water overflow inside the air conditioner indoor unit in the heating mode. The following will be described with reference to the drawings.

[0028] In the embodiments of the present application, as Figure 1 and Figure 2As shown, an air conditioner indoor unit includes a housing 1 and a heat exchange core 2. A fresh air chamber 11 and an exhaust air chamber 12 are provided inside the housing 1. The heat exchange core 2 is disposed between the fresh air chamber 11 and the exhaust air chamber 12 and is configured to perform heat exchange between the fresh air in the fresh air chamber 11 and the exhaust air in the exhaust air chamber 12.

[0029] The housing 1 includes a water receiving member which is located below the heat exchange core 2 to collect the condensed water formed by the heat exchange core 2, and the water receiving member is provided with a drain port.

[0030] It should be noted that the fresh air and the exhaust air are in contact with the surface of the heat exchange core 2 at the same time, and heat exchange is achieved by the way of heat conduction of objects. Exemplarily, the heat exchange core 2 may be provided with a fresh air passage communicating with the fresh air chamber 11 and an exhaust air passage communicating with the exhaust air chamber 12, and the fresh air passage and the exhaust air passage are not connected. For example, in the heating mode, the temperature of the fresh air after heat exchange rises, and it will not cause a sudden drop in the indoor temperature after flowing out of the air conditioner indoor unit. In this way, the water vapor in the air is condensed and precipitated more concentratedly on the heat exchange core 2 by the heat intersection of cold and hot air, avoiding the formation of fresh air condensation in other areas of the air conditioner indoor unit arbitrarily. Subsequently, the condensed water is collected centrally by the water receiving member and discharged through the drain port, solving the problems of fresh air condensation and the overflow of condensed water out of the air conditioner indoor unit, and improving the use experience.

[0031] In some embodiments, as Figure 3 and Figure 4 shown, the water receiving member includes two water receiving tray portions 3 and a support structure portion 4 connecting the two water receiving tray portions 3. The support structure portion 4 is used to support the lower end of the heat exchange core 2. The two water receiving tray portions 3 are respectively located in the fresh air chamber 11 and the exhaust air chamber 12 and are disposed below the heat exchange core 2. With the above water receiving member structure, on the one hand, the support structure portion 4 in direct contact with the heat exchange core 2 can guide the condensed water to flow quickly to the water receiving tray portion 3, and on the other hand, the fresh air condensation and the condensed water in the fresh air chamber 11 and the exhaust air chamber 12 can be collected centrally through the water receiving tray portion 3, and the reliability of the water receiving member is high.

[0032] In some embodiments, as Figure 3 shown, the heat exchange core 2 has an inclined first side 21 and a second side 22. The first side 21 is located in the fresh air chamber 11, and the second side 22 is located in the exhaust air chamber 12. The support structure portion 4 supports the lower end connection portion of the first side 21 and the second side 22. One of the water receiving tray portions 3 is located below the first side 21 to collect the condensed water of the first side 21, and the other water receiving tray is located below the second side 22 to collect the condensed water of the second side 22. In this way, the fresh air condensation and the condensed water dripping on one side of the fresh air chamber 11 and one side of the exhaust air chamber 12 of the heat exchange core 2 can be collected centrally in the water receiving tray portion 3, and the reliability of the water receiving member is high.

[0033] In some specific embodiments, as Figure 3As shown, the heat exchange core 2 is disposed within the housing 1, and together with the housing 1, it encloses an isolated fresh air chamber 11 and an exhaust air chamber 12. In this way, the heat exchange core 2 forms a barrier isolating the fresh air chamber 11 and the exhaust air chamber 12, with a simple structure and being convenient for processing and installation.

[0034] In some specific embodiments, as Figure 3 shown, the first side 21 and the second side 22 are oppositely arranged; the linear distance between the first side 21 and the second side 22 gradually decreases as it approaches the lower connecting portion of the first side 21 and the second side 22. In this way, at least a part of the heat exchange core 2 presents an inverted triangular structure, which facilitates the support of the support structure portion 4 while accelerating the dripping of condensed water.

[0035] In some embodiments, as Figure 4 and Figure 5 shown, the support structure portion 4 is provided with a support groove 41, and the lower end of the heat exchange core 2 is located within the support groove 41. While supporting the heat exchange core 2, the support structure portion 4 can also collect condensed water through the support groove 41.

[0036] In some embodiments, as Figure 5 shown, the support structure portion 4 is provided with two staggeredly arranged water guiding grooves 42. One of the water guiding grooves 42 communicates with one of the water receiving tray portions 3 and the support groove 41, and the other water guiding groove 42 communicates with the other water receiving tray portion 3 and the support groove 41. In this way, the water guiding grooves 42 guide the condensed water in the support groove 41 to the water receiving tray portion 3 for subsequent centralized treatment, preventing the condensed water from staying in the support groove 41 and breeding bacteria; both water receiving tray portions 3 have corresponding water guiding grooves 42 communicating with the support groove 41, which is conducive to storing the same volume of condensed water in the two water receiving tray portions 3, making the mass distribution of the condensed water on the water receiving member uniform and facilitating the structural stability.

[0037] In some embodiments, as Figure 5 shown, the two water guiding grooves 42 are respectively formed on the opposite sides of the support groove 41 along its width direction. In this way, the condensed water in the support groove 41 is quickly discharged and enters the water guiding grooves 42, and then flows to the water receiving tray portion 3.

[0038] In some embodiments, as Figure 4 shown, the bottom of the support groove 41 is higher than the bottoms of the two water guiding grooves 42. Through the height difference, the water flow velocity is further accelerated, promoting the discharge of the condensed water in the support groove 41.

[0039] In some embodiments, as Figure 4 and Figure 5As shown, the support groove 41 includes a first groove section 411 and two second groove sections 412 respectively located at both ends of the first groove section 411. The bottom of the first groove section 411 is higher than the bottom of the second groove section 412. The bottom of the first groove section 411 is used to abut and support the lower end of the heat exchange core 2, and the bottom of the second groove section 412 and the lower end of the heat exchange core 2 are spaced apart. Each second groove section 412 is respectively communicated with a water guide groove 42. In this way, the support groove 41 is compatible with the functions of support and water collection; the bottom of the second groove section 412 is spaced apart from the heat exchange core 2. Compared with the contact between the heat exchange core 2 and the bottom of the second groove section 412, there is less condensate residue on the surface of the heat exchange core 2; at the same time, the two second groove sections 412 are located at both ends of the first groove section 411. When the heat exchange core 2 is located in the first groove section 411, the drop between the first groove section 411 and the second groove section 412, as well as the close abutment between the first groove section 411 and the heat exchange core 2, can be used to isolate the fluid flow between the two second groove sections 412, thereby preventing fluid exchange between the two water guide grooves 42, so that the fresh air chamber 11 and the exhaust air chamber 12 cannot form a cross-flow through the support groove 41, and further, at the same time, through the condensate water in the second groove section 412, a liquid seal is formed to further improve the sealing performance between the fresh air chamber 11 and the exhaust air chamber 12.

[0040] In some embodiments, as Figure 4 shown, the water guide groove 42 is opened on the side wall of the second groove section 412 close to the first groove section 411. The second groove section 412 is an inclined groove section, and the second groove section 412 extends obliquely downward from its end far from the water guide groove 42 to the end close to the water guide groove 42. In this way, the speed of the condensate water flowing in the second groove section 412 to the water guide groove 42 and then to the water receiving tray part 3 is accelerated, and the condensate water is relatively concentrated in the intersection area of the water guide groove 42, the second groove section 412 and the first groove section 411, so as to form a water seal in this intersection area to further prevent the fresh air in the fresh air chamber 11 and the exhaust air in the exhaust air chamber 12 from cross-flowing.

[0041] In some specific embodiments, the water receiving tray part 3 is horizontally arranged, and the included angle between the second groove section 412 and the water receiving tray part 3 is θ, and θ>5°.

[0042] In some embodiments, as Figure 5 shown, water retaining ribs 31 are arranged on the circumferences of the two water receiving tray parts 3, and the water retaining ribs 31 are higher than the water receiving tray part 3. The water retaining ribs 31 can form a container for receiving condensate water with the water receiving tray part 3, and prevent the condensate water from overflowing before being drained away by the drain port, so as to better adapt to the situation where the temperature difference between the fresh air and the exhaust air is large.

[0043] In some specific embodiments, the condensate amount Q is calculated according to the condensate amount empirical formula, and the length A, width B and height H (i.e., the height of the water retaining rib 31) of the water receiving part are set according to the Q value. The dimensions of the water receiving part should meet the condition: H*A*B>Q.

[0044] In some embodiments, as Figure 3 shown, the heat exchange core 2 is provided with a fresh air passage and an exhaust air passage that are separated from each other. The fresh air passage communicates with the fresh air chamber 11, and the exhaust air passage communicates with the exhaust air chamber 12. In this way, the waste heat or cold of the exhaust air in the exhaust air passage is used to preheat or precool the fresh air, so that the fresh air discharged from the air conditioner indoor unit will not cause a sudden drop or rise in the indoor temperature.

[0045] In some embodiments, as Figure 3 shown, the housing 1 is provided with a fresh air inlet 13 and a fresh air outlet 14 that communicate with the fresh air chamber 11. The housing 1 is further provided with an exhaust air outlet 16 and an exhaust air inlet 15 that communicate with the exhaust air chamber 12. The fresh air inlet 13 and the exhaust air outlet 16 are located above or below the fresh air outlet 14 and the exhaust air inlet 15. In this way, a convection is formed when the fresh air passes through the fresh air passage and the exhaust air passes through the exhaust air passage, so as to better perform heat exchange and improve the precooling or preheating effect.

[0046] In the above embodiments, the descriptions of the respective embodiments have their own emphases. For the parts not detailed in a certain embodiment, reference may be made to the relevant descriptions of other embodiments. In the description of the present application, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more features.

[0047] The above has introduced in detail the air conditioner indoor unit provided by the embodiments of the present application. Specific examples are used in this article to elaborate on the principle and implementation manner of the present application. The description of the above embodiments is only used to help understand the method and its core idea of the present application; at the same time, for those skilled in the art, according to the idea of the present application, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to the present application.

Claims

1. An air conditioner indoor unit, characterized in that: The invention comprises a shell (1) and a heat exchange core (2); a fresh air chamber (11) and an exhaust air chamber (12) are provided in the shell (1); the heat exchange core (2) is arranged between the fresh air chamber (11) and the exhaust air chamber (12), and is configured to perform heat exchange between the fresh air in the fresh air chamber (11) and the exhaust air in the exhaust air chamber (12); The shell (1) comprises a water receiving piece, the water receiving piece is located at the lower side of the heat exchange core (2) to collect condensed water formed by the heat exchange core (2), and the water receiving piece is provided with a drain outlet.

2. The air conditioner indoor unit according to claim 1, characterized in that: The water receiving component comprises two water receiving pans (3) and a supporting structure (4) connecting the two water receiving pans (3), wherein the supporting structure (4) is used to support the lower end of the heat exchange core (2), and the two water receiving pans (3) are respectively located in the fresh air cavity (11) and the exhaust air cavity (12), and are arranged on the lower side of the heat exchange core (2).

3. The air conditioner indoor unit according to claim 2, characterized in that: The heat exchange core (2) has a first side (21) and a second side (22) which are arranged obliquely, wherein the first side (21) is located in the fresh air cavity (11), and the second side (22) is located in the exhaust air cavity (12), and the supporting structure (4) is supported on the lower end connection portion of the first side (21) and the second side (22), wherein one of the water receiving trays (3) is located below the first side (21) to collect condensed water on the first side (21), and the other water receiving tray is located below the second side (22) to collect condensed water on the second side (22).

4. The air conditioner indoor unit according to claim 2, characterized in that: The supporting structure part (4) is provided with a supporting groove (41), and the lower end of the heat exchange core (2) is located in the supporting groove (41).

5. The air conditioner indoor unit according to claim 4, characterized in that: The supporting structure portion (4) is provided with two staggered water diversion grooves (42), wherein one of the water diversion grooves (42) is connected to one of the water receiving tray portions (3) and the supporting groove (41), and the other water diversion groove (42) is connected to the other water receiving tray portion (3) and the supporting groove (41).

6. The air conditioner indoor unit according to claim 5, characterized in that: The two water diversion grooves (42) are respectively formed on opposite sides of the support groove (41) along its width direction; and / or the groove bottom of the support groove (41) is higher than the groove bottoms of the two water diversion grooves (42).

7. The air conditioner indoor unit according to claim 5, characterized in that: The supporting groove (41) comprises a first groove section (411) and two second groove sections (412) respectively located at the two ends of the first groove section (411); the groove bottom of the first groove section (411) is higher than the groove bottom of the second groove section (412); the groove bottom of the first groove section (411) is used to abut and support the lower end of the heat exchange core (2); the groove bottom of the second groove section (412) and the lower end of the heat exchange core (2) are arranged at intervals; each of the second groove sections (412) is respectively connected to one of the water diversion grooves (42).

8. The air conditioner indoor unit according to claim 7, characterized in that: The water diversion groove (42) is opened on a side wall of the second groove section (412) close to the first groove section (411); the second groove section (412) is an inclined groove section; the second groove section (412) extends obliquely downward from an end away from the water diversion groove (42) to an end close to the water diversion groove (42).

9. The air conditioner indoor unit according to claim 2, characterized in that: Water retaining ribs (31) are provided on the circumferential sides of the two water receiving pans (3), and the water retaining ribs (31) are higher than the water receiving pans (3).

10. The air conditioner indoor unit according to any one of claims 1 to 9, characterized in that: The heat exchange core (2) is provided with a fresh air channel and an exhaust air channel separated from each other, the fresh air channel is connected to the fresh air cavity (11), and the exhaust air channel is connected to the exhaust air cavity (12); And / or, the shell (1) is provided with a fresh air inlet (13) and a fresh air outlet (14) which are connected to the fresh air cavity (11), and the shell (1) is also provided with an exhaust outlet (16) and an exhaust air inlet (15) which are connected to the exhaust cavity (12), and the fresh air inlet (13) and the exhaust air outlet (16) are located above or below the fresh air outlet (14) and the exhaust air inlet (15).

Images