Air conditioner indoor unit and air conditioner

Abstract

The utility model relates to air conditioning manufacturing technical field discloses an air conditioner indoor unit and air conditioning unit. Among them air conditioner indoor unit includes power unit and condensing unit. In power unit, evaporimeter, low pressure low temperature refrigerant pipe, compressor, high pressure high temperature refrigerant pipe intercommunication, and high pressure high temperature refrigerant pipe links outdoor unit condenser and forms refrigerant circulation;Condensing unit contains the condensing water receiving member, conveying member and drainage member of interlink, and receiving member is located below evaporimeter and receives condensing water, and conveying member is sleeved in high pressure high temperature refrigerant pipe outside, can realize refrigerant precooling with heat exchange, and drainage member extends to the outdoor row heat exchange after condensing water. Through with local high pressure high temperature refrigerant pipe composition heat conversion device, in the machine absorption conversion condensing water cold quantity, avoid the cold quantity outdoor loss. After heat exchange, indoor part heat is discharged with condensing water, and the cost is low and high -efficient energy -conserving, and the energy -conserving emission reduction effect is remarkable, simultaneously, also need not external equipment auxiliary promotion heat exchange efficiency, reduce air conditioning system energy consumption.

Description

Technical Field

[0001] This utility model relates to the field of air conditioning manufacturing technology, and in particular to an indoor air conditioning unit and an air conditioning system. Background Technology

[0002] During the operation of air conditioning equipment, the indoor unit's evaporator exchanges heat with the air, and water vapor in the air condenses on the outer wall of the evaporator to form condensate. However, current methods for treating and utilizing this condensate are limited. The mainstream solutions fall into two categories: one is to collect it directly and transport it to an outdoor cooling tower as a supplementary water source for the cooling tower; the other is to equip it with additional power devices such as water pumps to pressurize the condensate and spray it onto the surface of the outdoor unit's condenser, thereby improving the condenser's heat exchange efficiency through water evaporation.

[0003] In the first type of solution, after the condensate is discharged from the indoor unit to the outside, a large amount of its own cooling capacity is lost outdoors, resulting in a very low cooling capacity recovery and utilization rate, which makes it impossible to achieve energy saving in the air conditioning system. The second type of solution requires the addition of external equipment such as water pumps and power supply lines, which not only significantly increases the initial investment cost, but also consumes additional electricity and increases the system energy consumption when the water pump is running, making the system structure more complex and significantly increasing the frequency and cost of subsequent maintenance.

[0004] Meanwhile, in the refrigerant circulation system of traditional air conditioner indoor units, the high-pressure, high-temperature refrigerant discharged from the compressor is directly transported to the outdoor unit condenser for cooling through the high-pressure, high-temperature refrigerant pipe. The indoor unit does not have any pre-cooling mechanism for the high-pressure, high-temperature refrigerant, which means that the outdoor unit condenser has to bear the entire refrigerant cooling load alone, further aggravating the energy consumption pressure of the air conditioning system, which is contrary to the current industry's pursuit of energy conservation, emission reduction, high efficiency and low consumption development.

[0005] Therefore, there is an urgent need for an indoor air conditioning unit that can solve the problems of excessive condensate water waste of cooling capacity and significant increase in energy consumption of existing air conditioning systems, and help air conditioning achieve energy conservation, emission reduction and efficient low-consumption operation. Utility Model Content

[0006] The purpose of this utility model is to provide an indoor air conditioner unit that can solve the problem of a large amount of cooling capacity being wasted due to condensate in existing air conditioners, and help air conditioners achieve energy saving, emission reduction and high-efficiency, low-consumption operation.

[0007] Based on the above concept, the technical solution adopted by this utility model is as follows:

[0008] An indoor unit for an air conditioner includes:

[0009] The power unit includes an evaporator, a low-pressure, low-temperature refrigerant pipe, a compressor, and a high-pressure, high-temperature refrigerant pipe connected in series. The high-pressure, high-temperature refrigerant pipe is used to connect with the condenser of the outdoor unit of the air conditioner to form a refrigerant circulation path.

[0010] The condensing unit includes a condensate receiving component, a condensate conveying component, and a drain component that are connected to each other. The condensate receiving component is located below the evaporator and is used to collect condensate from the outer wall of the evaporator due to air condensation. The condensate conveying component is located around the high-pressure, high-temperature refrigerant pipe and is used to exchange heat with the high-pressure, high-temperature refrigerant pipe to achieve pre-cooling of the refrigerant. The drain component extends to the outside of the indoor unit of the air conditioner to discharge the condensate after heat exchange to the outside.

[0011] As an optional solution for the indoor unit of the air conditioner, the condensate delivery component is a spiral shell tube, which is wound around the outer periphery of the high-pressure, high-temperature refrigerant pipe.

[0012] As an optional solution for the indoor unit of the air conditioner, after the drain component is connected to the spiral shell tube, it first extends vertically upward to form an ascending section. The top height of the ascending section is lower than the top height of the spiral shell tube when it is spirally wound. The top of the ascending section bends downward to form a descending section. The descending section extends vertically downward to the bottom of the indoor unit of the air conditioner and then bends outward to form a horizontal extension section. The horizontal extension section extends to the outside of the indoor unit of the air conditioner.

[0013] As an optional solution for the indoor unit of this air conditioner, the condensate delivery component is a clamp-shaped shell pipe, which is clamped onto the high-pressure, high-temperature refrigerant pipe.

[0014] As an optional solution for the indoor unit of the air conditioner, the condensate receiving component is connected to the lower inlet of the clamp-shaped shell tube, and the drain component is connected to the upper outlet of the clamp-shaped shell tube.

[0015] As an optional solution for the indoor unit of the air conditioner, the condensate delivery component is a liquid storage tank, which is connected to the condensate receiving component and the drain component respectively, and at least part of the high-pressure high-temperature refrigerant pipe is coiled into multiple loops and placed in the liquid storage tank.

[0016] As an optional feature for the indoor unit of this air conditioner, the high-pressure, high-temperature refrigerant pipe is made of metallic copper.

[0017] As an optional solution for the indoor unit of the air conditioner, the indoor unit also includes a heat insulation unit, which is installed on both the high-pressure high-temperature refrigerant pipe and the low-pressure low-temperature refrigerant pipe.

[0018] As an optional feature of the indoor unit of the air conditioner, the indoor unit also includes a first fan mounted on the evaporator, which is used to accelerate the airflow around the evaporator.

[0019] An air conditioning unit includes an outdoor unit and an indoor unit. The outdoor unit includes a condenser and a second fan. The second fan is installed on the side of the condenser. The condenser is connected to a high-pressure, high-temperature refrigerant pipe and is connected to an evaporator.

[0020] The beneficial effects of this utility model are as follows:

[0021] This utility model proposes an indoor air conditioning unit. The power unit includes a connected evaporator, a low-pressure, low-temperature refrigerant pipe, a compressor, and a high-pressure, high-temperature refrigerant pipe. The high-temperature refrigerant pipe is used to connect with the condenser of the outdoor unit to form a refrigerant circulation path. The condensation unit includes a connected condensate receiving component, a condensate conveying component, and a drain component. The condensate receiving component is located below the evaporator and is used to collect condensate from the outer wall of the evaporator due to air condensation. The condensate conveying component is located around the high-pressure, high-temperature refrigerant pipe and is used to exchange heat with the high-pressure, high-temperature refrigerant pipe to achieve pre-cooling of the refrigerant. The drain component extends to the outside of the indoor unit to discharge the condensate after heat exchange to the outside. By forming a heat conversion device with the local high-pressure, high-temperature refrigerant pipe, the cooling capacity of the condensate is directly absorbed and converted on the unit itself. This design is not only simple and compact with a small footprint, but also avoids the problem of a large amount of cooling capacity being lost outdoors. Through heat exchange, some of the heat from the indoor unit can be discharged outdoors with the condensate. This design is low-cost, highly efficient, and energy-saving, with significant energy-saving and emission-reduction effects. Furthermore, it eliminates the need for external equipment to improve heat exchange efficiency, thus reducing the energy consumption of the air conditioning system. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the first structure of the indoor unit of the air conditioner provided in Embodiment 1 of this utility model;

[0023] Figure 2 This is a schematic diagram of the second structure of the indoor unit of the air conditioner provided in Embodiment 1 of this utility model;

[0024] Figure 3 This is a cross-sectional view of the indoor unit of the air conditioner provided in Embodiment 1 of this utility model;

[0025] Figure 4 This is a schematic diagram of the first structure of the indoor unit of the air conditioner provided in Embodiment 2 of this utility model;

[0026] Figure 5 This is a schematic diagram of the second structure of the air conditioner indoor unit provided in Embodiment 2 of this utility model;

[0027] Figure 6 This is a cross-sectional view of the indoor unit of the air conditioner provided in Embodiment 2 of this utility model;

[0028] Figure 7 This is a schematic diagram of the first structure of the indoor unit of the air conditioner provided in Embodiment 3 of this utility model;

[0029] Figure 8 This is a schematic diagram of the second structure of the indoor unit of the air conditioner provided in Embodiment 3 of this utility model.

[0030] In the picture:

[0031] 1. Power unit; 11. Evaporator; 12. Low-pressure, low-temperature refrigerant pipe; 13. Compressor; 14. High-pressure, high-temperature refrigerant pipe;

[0032] 2. Condensation unit; 21. Condensate receiving unit; 22. Condensate conveying unit; 23. Drainage unit; 24. Sewage discharge unit;

[0033] 3. Thermal insulation unit;

[0034] 4. First fan;

[0035] 5. Indoor unit casing. Detailed Implementation

[0036] To make the technical problem solved by this utility model, the technical solution adopted, and the technical effect achieved clearer, the technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely for explaining this utility model and not for limiting it. Furthermore, it should be noted that, for ease of description, only the parts related to this utility model are shown in the accompanying drawings, not all of them.

[0037] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0038] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0039] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0040] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0041] Example 1

[0042] This embodiment provides an indoor unit for an air conditioner, such as... Figures 1-3 As shown, in this embodiment, the indoor unit of the air conditioner includes a power unit 1 and a condensing unit 2. The power unit 1 includes a connected evaporator 11, a low-pressure low-temperature refrigerant pipe 12, a compressor 13, and a high-pressure high-temperature refrigerant pipe 14. The high-pressure high-temperature refrigerant pipe 14 is used to connect with the condenser of the outdoor unit of the air conditioner to form a refrigerant circulation path. The condensing unit 2 includes a connected condensate receiving device 21, a condensate conveying device 22, and a drain device 23. The condensate receiving device 21 is located below the evaporator 11 and is used to collect condensate from the outer wall of the evaporator 11 due to air condensation. The condensate conveying device 22 is located around the high-pressure high-temperature refrigerant pipe 14 and is used to exchange heat with the high-pressure high-temperature refrigerant pipe 14 to achieve pre-cooling of the refrigerant. The drain device 23 extends to the outside of the indoor unit of the air conditioner to discharge the condensate after heat exchange to the outside. The condensate delivery assembly and the local high-pressure, high-temperature refrigerant pipe 14 directly form a heat exchange device, eliminating the need for an additional complex heat exchange structure. This results in a simple, compact structure for the indoor unit, occupying minimal space. The condensate directly exchanges heat with the refrigerant within the indoor unit, eliminating the need to transport cooling energy outdoors and avoiding significant losses during transmission, thus solving the problem of cooling energy loss outdoors. The entire heat exchange process utilizes the condensate's own cooling capacity, requiring no additional power equipment or energy, and saving the cost of external auxiliary devices. This makes the initial investment, operation, and maintenance of the air conditioning radiator cost-effective. After heat exchange, indoor heat is discharged with the condensate, reducing the indoor heat dissipation burden. Simultaneously, the pre-cooled refrigerant reduces the load on the outdoor unit condenser. This dual effect results in high efficiency and energy saving, with significant energy conservation and emission reduction effects. The absence of external water pumps, power lines, and other auxiliary equipment for heat exchange reduces additional energy sources, thereby lowering the overall energy consumption of the air conditioning system.

[0043] Specifically, such as Figures 1-3As shown, in this embodiment, the condensate delivery component 22 is a spiral shell-and-tube. The condensate delivery component 22 is arranged around the outer periphery of the high-pressure, high-temperature refrigerant pipe 14, allowing the low-temperature condensate to flow freely from top to bottom inside the shell-and-tube. This enables high-speed heat exchange between the condensate and the high-pressure, high-temperature refrigerant pipe 14 in contact with the shell-and-tube. Furthermore, the spiral shell-and-tube can act as an auxiliary condenser, allowing the condensate to flow through the shell-and-tube before being discharged, completing heat exchange and absorbing the cold energy before naturally being discharged outdoors with the heat. This further enhances the heat exchange efficiency between the condensate and the refrigerant, making fuller use of the condensate's own cold energy to pre-cool the refrigerant. This not only improves the refrigerant pre-cooling effect but also further reduces cold energy waste. It also eliminates the need for additional complex heat exchange components, achieving the auxiliary condensation function solely through the spiral shell-and-tube structure design. This further simplifies the structure of the indoor air conditioning unit, reduces initial investment and maintenance costs, and allows the condensate to flow freely without additional power, reducing energy consumption. It also more efficiently discharges indoor heat with the condensate, reducing the indoor heat dissipation burden and the outdoor unit condenser load, thus doubly improving the energy efficiency and operating efficiency of the air conditioning system.

[0044] Preferably, such as Figures 1-3 As shown, in this embodiment, after the drain component 23 is connected to the spiral shell tube, it first extends vertically upward to form an ascending section. The top height of the ascending section is lower than the top height of the spiral shell tube. The top of the ascending section bends downward to form a descending section. The descending section extends vertically downward to the bottom of the indoor unit of the air conditioner and then bends outward to form a horizontal extension section. The horizontal extension section extends to the outside of the indoor unit of the air conditioner. This design ensures that the condensate drains smoothly while creating a temporary water storage space. The design of the ascending section being lower than the top of the spiral shell tube allows a certain amount of condensate to always remain inside the spiral shell tube, avoiding an empty tube state and ensuring that the condensate and the high-pressure, high-temperature refrigerant pipe 14 continue to have sufficient contact and exchange. To prevent heat exchange interruption or efficiency reduction due to rapid condensate drainage, the top-to-bottom-to-horizontal path design utilizes gravity to achieve natural condensate flow while preventing outdoor air or dust from flowing back into the indoor unit through the drain component 23. The connection between the descending section and the horizontal extension section also reduces noise during condensate flow. The horizontal extension section ensures that condensate is accurately drained to the designated outdoor area, preventing it from dripping onto the indoor unit casing 5 or the wall and causing damage. The overall structure does not require the addition of complex components, which enhances heat exchange continuity and improves drainage stability while further reducing equipment energy consumption and maintenance costs, ensuring the reliability and comfort of the air conditioning indoor unit.

[0045] Preferably, in this embodiment, the spiral shell and tube is made of copper. Copper enables the spiral shell and tube to quickly conduct the cooling energy of the condensate to the tube body, and then efficiently transfer it to the high-pressure, high-temperature refrigerant tube 14 inside the tube. This significantly increases the heat exchange rate between the refrigerant and the condensate, shortens the refrigerant pre-cooling time, further enhances the auxiliary condensation effect, ensures that the cooling energy is fully utilized and reduces waste. Copper also has good corrosion resistance, resisting rust problems caused by long-term contact with condensate, extending the service life of the spiral shell and tube, and reducing the frequency and cost of maintenance and replacement due to shell and tube damage. In other embodiments, the spiral shell and tube can also be made of materials such as aluminum or stainless steel.

[0046] Preferably, in this embodiment, the high-pressure high-temperature refrigerant pipe 14 is made of metallic copper, which enables more efficient heat exchange with the condensate delivery assembly located on its outer periphery, thus facilitating the pre-cooling function of the refrigerant. Metallic copper possesses excellent thermal conductivity, allowing for rapid transfer of heat from the refrigerant within the high-pressure high-temperature refrigerant pipe 14 to the condensate, improving the utilization efficiency of the condensate's own cooling capacity and further enhancing the pre-cooling effect on the refrigerant. This effectively reduces the load on the outdoor unit condenser. Copper also exhibits good corrosion resistance and structural stability, adapting to the potentially humid environment of condensate within the indoor unit of the air conditioner, extending the service life of the high-pressure high-temperature refrigerant pipe 14, and reducing equipment maintenance costs. In other embodiments, the high-pressure high-temperature refrigerant pipe 14 can also be made of stainless steel or copper-aluminum composite materials.

[0047] Preferably, such as Figures 1-3 As shown, in this embodiment, the indoor unit of the air conditioner also includes a heat insulation unit 3. Both the high-pressure high-temperature refrigerant pipe 14 and the low-pressure low-temperature refrigerant pipe 12 are provided with heat insulation units 3, which can reduce the heat exchange between the two pipes and the external environment and between them, prevent the high-pressure high-temperature refrigerant pipe 14 from dissipating heat into the indoor environment, prevent the indoor temperature from rising and increasing the air conditioning load, and at the same time prevent the low-pressure low-temperature refrigerant pipe 12 from absorbing indoor heat and causing cooling loss, so as to ensure that the refrigerant maintains the expected temperature state during the circulation process.

[0048] Preferably, in this embodiment, the insulation unit 3 includes insulation cotton and binding straps. Both the high-pressure high-temperature refrigerant pipe 14 and the low-pressure low-temperature refrigerant pipe 12 are covered with insulation cotton and fixed with binding straps. The insulation cotton has good heat insulation performance, which can effectively block the high-pressure high-temperature refrigerant pipe 14 from dissipating heat into the room and the low-pressure low-temperature refrigerant pipe 12 from absorbing heat from the room, reducing cooling loss and additional load. The binding straps can tightly fix the insulation cotton to the outside of the pipes, preventing the insulation cotton from loosening or shifting due to the vibration of the air conditioner operation, thus affecting the insulation effect. At the same time, it makes the insulation structure more compact, adapting to the small space layout of the indoor unit. The combination of insulation cotton and binding straps is low-cost and easy to install. It can ensure that the refrigerant maintains the expected temperature state during circulation, ensuring the heat exchange efficiency with the condensate, and avoiding thermal interference between pipes, further improving the cooling efficiency and energy saving of the air conditioner. Moreover, it can achieve a stable and reliable insulation effect without complex structure, which meets the design requirements of simple and compact indoor unit structure.

[0049] Preferably, such as Figures 1-3 As shown, in this embodiment, the indoor unit of the air conditioner also includes a first fan 4, which is installed on the evaporator 11. The first fan 4 is used to accelerate the airflow around the evaporator 11. When the first fan 4 accelerates the airflow, more indoor air can quickly contact the outer wall of the evaporator 11, causing the heat in the air to be absorbed by the low-temperature refrigerant in the evaporator 11 more quickly, thereby accelerating the indoor cooling speed, improving the air conditioning cooling effect and the comfort of the indoor environment. The increased airflow speed can promote the formation and dripping of condensate on the outer wall of the evaporator 11, so that the condensate can be collected by the condensate receiving device 21 below more promptly, providing a more sufficient source of cooling for the subsequent heat exchange between the condensate and the high-pressure high-temperature refrigerant pipe 14, further optimizing the refrigerant pre-cooling effect and reducing the load on the outdoor unit condenser.

[0050] Preferably, such as Figures 1-3 As shown, in this embodiment, the indoor unit of the air conditioner also includes an indoor unit casing 5. The power unit 1 and the condensing unit 2 are both located inside the indoor unit casing 5, which can achieve centralized storage and unified protection of the core functional components. The indoor unit casing 5 can integrate the various dispersed components into a whole, avoiding damage to the components from dust, moisture or external impacts, extending the service life of the equipment, and reducing the installation gap between the components. This further meets the design requirements of a simple and compact indoor unit structure with a small footprint. The casing can also isolate the noise generated by the power unit 1 during operation, reduce indoor noise pollution, and improve user comfort. Moreover, the appearance design of the casing can be adapted to different interior decoration styles, enhancing the aesthetics of the product. The unified casing facilitates the orderly arrangement of pipelines between the components, reducing the problem of heat exchange efficiency being affected or maintenance inconvenience caused by messy pipelines. At the same time, it provides convenience for subsequent installation and maintenance. Combined with the existing structure such as the heat insulation unit 3 and the first fan 4, the indoor unit of the air conditioner achieves a better overall effect in terms of functional integrity, operational stability and user experience.

[0051] Example 2

[0052] This embodiment provides an indoor unit for an air conditioner, such as... Figures 4-6 As shown, the indoor unit of this air conditioner differs from Embodiment 1 in that the condensate delivery component 22 in this embodiment is a clamp-shaped shell and tube. The condensate delivery component 22 is clamped onto the high-pressure, high-temperature refrigerant pipe 14, allowing low-temperature condensate to enter from the inlet of the clamp-shaped sealed shell and tube, filling the shell and tube, and overflowing from the outlet. The clamp-shaped shell and tube, which is in contact with the high-pressure, high-temperature refrigerant pipe 14, undergo rapid heat exchange. The clamp-shaped shell and tube acts as an auxiliary condenser. When condensate is discharged, it first flows through the clamp-shaped heat exchange and drainage shell and tube for sufficient heat exchange. The coldness of the condensate is absorbed and converted into heat, which is then naturally discharged outdoors with the condensate. The clamp-shaped shell and tube allow the condensate delivery component 22 to form a tight and large-area contact with the high-pressure, high-temperature refrigerant pipe 14, so that the condensate flows through the shell and tube... When flowing internally, it can directly and efficiently exchange heat with the high-pressure, high-temperature refrigerant pipe 14, making full use of the cooling capacity of the condensate to pre-cool the refrigerant. The clamp-shaped shell and tube design eliminates the need for additional complex heat exchange structures, further simplifying the overall structure of the indoor air conditioning unit, making the equipment more compact and occupying less space. At the same time, the close contact method reduces the loss of cooling capacity during the heat exchange process, improving pre-cooling efficiency. It eliminates the need for additional power equipment or energy, reducing initial investment, operation, and maintenance costs. It also better reduces the load on the outdoor unit condenser by pre-cooling the refrigerant, reducing the indoor heat dissipation burden and enhancing the energy-saving and emission-reduction effects of the air conditioning system. Furthermore, it eliminates the need for external water pumps, power lines, and other auxiliary equipment, avoiding additional energy sources and further reducing the overall energy consumption of the air conditioning system.

[0053] Specifically, such as Figures 4-6 As shown, in this embodiment, the condensate receiving component 21 is connected to the lower inlet of the clamp-shaped shell tube, and the drain component 23 is connected to the upper outlet of the clamp-shaped shell tube. The condensate can flow naturally using its own gravity, allowing the condensate collected by the receiving component 21 to smoothly enter the clamp-shaped shell tube. After sufficient heat exchange with the high-pressure, high-temperature refrigerant pipe 14, the condensate is discharged outdoors through the drain component 23. This eliminates the need for additional power devices such as water pumps to drive the condensate flow, reducing equipment investment costs and maintenance workload, avoiding additional energy consumption from power device operation, further simplifying the structure of the indoor air conditioning unit. Simultaneously, it ensures sufficient flow time and heat exchange contact area for the condensate within the shell tube, improving the pre-cooling effect, better reducing the load on the outdoor unit condenser and the indoor heat dissipation burden, enhancing the system's energy efficiency and emission reduction effect. Furthermore, the gravity-driven flow method is stable and reliable, reducing the risk of equipment failure and ensuring long-term efficient operation of the indoor air conditioning unit.

[0054] Preferably, such as Figures 4-6As shown in this embodiment, a drain component 24 is also provided at the bottom of the clamp-shaped shell tube, which can promptly drain impurities, dirt, or microbial growths that may accumulate in the condensate during flow and heat exchange. This prevents these contaminants from clogging the shell tube and affecting the flow of condensate and heat exchange efficiency. It can effectively prevent the heat exchange effect from decreasing due to blockage inside the shell tube, ensure smooth flow of condensate to maintain stable pre-cooling capacity, reduce pipe corrosion or odor problems caused by dirt accumulation, extend the service life of the clamp-shaped shell tube and the entire condensing unit 2, reduce maintenance costs and frequency caused by blockage or damage, ensure long-term efficient and stable operation of the air conditioning indoor unit, and further guarantee the refrigerant pre-cooling effect and system energy efficiency.

[0055] Preferably, in this embodiment, the clamp-shaped shell tube is made of copper. Copper's excellent thermal conductivity allows for rapid and efficient heat transfer between the condensate and the high-pressure, high-temperature refrigerant pipe 14, enabling the cooling capacity of the condensate to be more fully utilized by the refrigerant, significantly improving the pre-cooling efficiency. Simultaneously, copper's good ductility and processing properties allow for precise fabrication into a clamp shape that fits snugly against the high-pressure, high-temperature refrigerant pipe 14, ensuring close contact between the two to reduce heat exchange gaps and guarantee stable heat exchange performance. In other embodiments, the clamp-shaped shell tube can also be made of stainless steel or aluminum alloy.

[0056] The other structures of the indoor unit of the air conditioner in this embodiment are the same as those in Embodiment 1, and will not be described in detail here.

[0057] Example 3

[0058] This embodiment provides an indoor unit for an air conditioner, such as... Figures 7-8 As shown, the indoor unit of this air conditioner differs from that of Embodiment 1 in that the condensate delivery component 22 in this embodiment is a liquid storage tank. The liquid storage tank is connected to the condensate receiving component 21 and the drain component 23. At least a portion of the high-pressure high-temperature refrigerant pipe 14 is coiled into multiple loops and placed in the liquid storage tank. The liquid storage tank is equivalent to an auxiliary condenser. When condensate is discharged, it first flows into the drain shell tank for heat exchange. After the coldness of the condensate is absorbed, it is converted into heat and naturally overflows to the outside with the condensate. The condensate collected in the liquid storage tank can fully exchange heat with the coiled high-pressure high-temperature refrigerant pipe 14, completing the temporary storage of condensate while pre-cooling the refrigerant. The continuous discharge of refrigerant, with its multi-coiled refrigerant pipes, significantly increases the contact area with condensate, improving heat exchange efficiency and ensuring better refrigerant pre-cooling to further reduce the load on the outdoor unit's condenser. The structure of the liquid receiver tank, while fulfilling the function of condensate transport, eliminates the need for additional complex heat exchange structures and auxiliary power equipment. This simplifies the overall structure of the indoor air conditioning unit, reduces space occupation, avoids cold energy transfer losses and additional energy input, and reduces indoor heat dissipation burden by discharging heat through condensate. It optimizes the performance of the indoor air conditioning unit from multiple aspects, including structural simplification, cost control, and energy efficiency improvement, thereby enhancing energy saving and emission reduction effects.

[0059] Specifically, such as Figures 7-8 As shown, in this embodiment, the condensate receiving device 21 is connected to the lower inlet of the storage tank, and the drain device 23 is connected to the upper outlet of the storage tank. This allows the condensate to enter the storage tank from the receiving device and gradually fill the tank from bottom to top, fully contacting the high-pressure, high-temperature refrigerant pipe 14 coiled inside the tank, before being discharged from the upper outlet through the drain device 23. The filling path of the condensate in the storage tank extends the contact time with the refrigerant pipe, and the bottom-to-top flow ensures that the refrigerant pipe inside the tank is fully enveloped by the condensate, avoiding reduced heat exchange efficiency due to partial lack of contact. The design reduces the load on the outdoor unit by further improving the refrigerant pre-cooling effect. In addition, the bottom-inlet and top-outlet structure conforms to the natural flow law of liquids, eliminating the need for additional power to drive the condensate transport. This reduces energy consumption and equipment costs, and the temporary storage function of the liquid tank prevents insufficient heat exchange caused by rapid discharge of condensate. It also effectively prevents air stagnation in the tank from affecting heat exchange. Combined with the previously simplified structural design, this further optimizes the operational stability and energy efficiency of the indoor air conditioning unit, enhances the utilization rate of condensate cooling capacity, and improves the indoor heat dissipation load reduction effect.

[0060] Preferably, in this embodiment, the liquid storage tank is a high-temperature resistant liquid storage tank, which can stably withstand the heat transferred by the refrigerant when in long-term contact with the high-pressure, high-temperature refrigerant pipe 14 coiled inside the tank. This avoids deformation, damage, or decreased sealing of the tank due to the high-temperature environment, ensuring that the normal temporary storage, heat exchange, and transportation process of condensate in the tank is not affected. The high-temperature resistant liquid storage tank can ensure the structural stability and service life of the liquid storage tank, avoid condensate leakage, heat exchange interruption, and other failures caused by high-temperature damage, reduce the maintenance cost and failure risk of the air conditioner indoor unit, and make the heat exchange process between the high-pressure, high-temperature refrigerant pipe 14 and condensate in the tank safer and more reliable. There is no need to worry about insufficient high-temperature resistance of the tank limiting the heat transfer of the refrigerant, thereby ensuring the continuous and stable pre-cooling effect of the refrigerant, giving full play to the utilization value of the condensate cooling capacity. At the same time, it works in conjunction with the previous bottom-in, top-out connection method and multi-turn refrigerant pipe design to further enhance the overall reliability of the air conditioner indoor unit structure, ensure long-term efficient operation of the equipment, continuously reduce the load on the outdoor unit, reduce energy consumption, and consolidate the energy-saving and emission-reduction effect.

[0061] Preferably, in this embodiment, the storage tank is made of stainless steel, which enables it to stably withstand the heat transferred by the refrigerant while being in long-term contact with the high-pressure, high-temperature refrigerant pipe 14 coiled inside the tank, while resisting corrosion that may occur due to long-term immersion in condensate. This ensures that the tank maintains its structural integrity and good sealing performance, thereby guaranteeing the stable operation of the temporary storage of condensate in the tank, sufficient heat exchange with the refrigerant pipe, and subsequent orderly discharge process. In other embodiments, the storage tank may also be made of polytetrafluoroethylene or modified polyphenylene ether, etc.

[0062] The other structures of the indoor unit of the air conditioner in this embodiment are the same as those in Embodiment 1, and will not be described in detail here.

[0063] Example 4

[0064] This embodiment provides an air conditioning unit that, based on the indoor unit provided in Embodiments 1, 2, or 3, also includes an outdoor unit. The outdoor unit includes a condenser and a second fan, with the second fan mounted on the side of the condenser. The condenser is connected to a high-pressure, high-temperature refrigerant pipe 14 and an evaporator 11, enabling complete and efficient refrigerant circulation and heat dissipation. The indoor unit uses the cooling capacity of the condensate itself via a condensate delivery component 22 to pre-cool the refrigerant in the high-pressure, high-temperature refrigerant pipe 14. The pre-cooled refrigerant then enters the outdoor unit's condenser, where the second fan accelerates airflow around the condenser, further efficiently dissipating heat from the refrigerant and completing the refrigerant circulation. The pre-cooling of the indoor unit reduces the refrigerant temperature and alleviates the heat dissipation load on the outdoor unit condenser, allowing the second fan to achieve good heat dissipation without high-intensity operation. Combined with the advantages of the indoor unit requiring no additional power equipment, compact structure, no outdoor transmission loss of cooling capacity, and utilization of natural cooling capacity from condensate, the entire air conditioning system has lower initial investment, operation, and maintenance costs. At the same time, indoor heat is discharged with the condensate, and the outdoor unit's heat dissipation efficiency is improved. Under these dual effects, the cooling efficiency and energy saving are significantly improved, indoor noise and heat dissipation burden are reduced, operational reliability and user comfort are ensured, and condensate dripping can be avoided from damaging equipment or walls. Moreover, the overall structure is highly adaptable and can be designed with different condensate delivery components to meet diverse needs.

[0065] Preferably, in this embodiment, the outdoor unit of the air conditioner also includes an outdoor unit casing. The condenser and the second fan are both housed within the outdoor unit casing, enabling integrated protection and functional optimization of the core heat exchange components on the outdoor side. The outdoor unit casing effectively isolates external wind, sand, rain, dust, insects, and other debris, preventing them from adhering to or intruding into the condenser and affecting heat exchange efficiency. Simultaneously, it prevents foreign objects from being drawn into the second fan during operation, causing malfunctions, extending the service life of the condenser and fan, and ensuring long-term stable operation of the outdoor unit. The casing physically encloses the condenser and the second fan, reducing the diffusion of noise generated by the fan operation into the outdoor environment, lowering noise pollution, and also... The rational structural design of the outer casing guides the orderly flow of air through the condenser, and the second fan accelerates the airflow, further improving the heat exchange efficiency between the condenser and the outdoor air. This helps to quickly dissipate the heat carried by the refrigerant, forming an efficient combination with the refrigerant after pre-cooling in the indoor unit, reducing the overall energy consumption of the outdoor unit. The outer casing centrally houses the condenser and the second fan, making the outdoor unit structure more compact, facilitating outdoor installation and space adaptation. At the same time, the unified outer casing design enhances the aesthetics of the outdoor unit, adapting to different outdoor environments. It forms a synergy between function and appearance with the indoor unit casing, making the entire air conditioning system more perfect in terms of stability, energy efficiency, and user experience.

[0066] Preferably, in this embodiment, the outdoor unit of the air conditioner also includes a throttling valve. The throttling valve is installed at the end of the condenser and can throttle and reduce the pressure and temperature of the refrigerant, which is in a high-pressure, medium-temperature state after being cooled by the condenser. This achieves a key state conversion of the refrigerant. The throttling valve can quickly reduce the pressure of the high-pressure, medium-temperature liquid refrigerant output from the condenser to a low-pressure state, accompanied by a significant temperature drop, turning the refrigerant into a low-pressure, low-temperature gas-liquid mixture. This lays the core conditions for the refrigerant to enter the indoor unit evaporator 11 to absorb indoor heat and achieve the cooling function, ensuring the integrity of the refrigerant circulation path and the smoothness of the cooling process. The throttling valve is small in size, simple in structure, and compatible with the outdoor unit. The compact installation space within the casing allows for precise control of refrigerant pressure reduction and flow rate, preventing unstable cooling efficiency caused by refrigerant flow fluctuations. Combined with the indoor unit's pre-cooling effect on the refrigerant and the condenser's heat dissipation function, it can further reduce outdoor unit energy consumption and improve the overall cooling efficiency of the air conditioner. The expansion valve is installed at the end of the condenser, directly receiving the refrigerant output from the condenser, reducing heat loss during refrigerant transmission, and ensuring that the refrigerant enters the expansion stage at the expected medium-temperature and high-pressure state. This enhances the efficiency and stability of refrigerant state transition, thereby enabling the entire air conditioning system to achieve better synergy in energy consumption control, cooling effect, and operational stability.

[0067] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. An air conditioner indoor unit characterized by comprising: include: The power unit (1) includes an evaporator (11), a low-pressure low-temperature refrigerant pipe (12), a compressor (13), and a high-pressure high-temperature refrigerant pipe (14) connected together. The high-pressure high-temperature refrigerant pipe (14) is used to connect with the condenser of the outdoor unit of the air conditioner to form a refrigerant circulation path. The condensing unit (2) includes a condensate receiving device (21), a condensate conveying device (22), and a drain device (23) connected to each other. The condensate receiving device (21) is located below the evaporator (11) and is used to collect condensate from the outer wall of the evaporator (11) due to air condensation. The condensate conveying device (22) is located on the outer periphery of the high-pressure high-temperature refrigerant pipe (14) and is used to exchange heat with the high-pressure high-temperature refrigerant pipe (14) to achieve pre-cooling of the refrigerant. The drain device (23) extends to the outside of the indoor unit of the air conditioner to discharge the condensate after heat exchange to the outside. 2.The indoor unit of the air conditioner according to claim 1, characterized by, The condensate delivery component (22) is a spiral shell tube, which is wound around the outer periphery of the high-pressure high-temperature refrigerant pipe (14). 3.The indoor unit of the air conditioner according to claim 2, characterized by, After the drain component (23) is connected to the spiral shell tube, it first extends vertically upward to form an ascending section. The top height of the ascending section is lower than the top height of the spiral shell tube spirally wound. The top of the ascending section bends downward to form a descending section. The descending section extends vertically downward to the bottom of the air conditioner indoor unit and then bends outward to form a horizontal extension section. The horizontal extension section extends to the outside of the air conditioner indoor unit. 4.The indoor unit of the air conditioner according to claim 1, characterized by, The condensate delivery component (22) is a clamp-shaped shell tube, and the condensate delivery component (22) is clamped on the high-pressure high-temperature refrigerant pipe (14). 5.The indoor unit of the air conditioner according to claim 4, characterized in that, The condensate receiving component (21) is connected to the lower inlet of the clamp-shaped shell tube, and the drain component (23) is connected to the upper outlet of the clamp-shaped shell tube.

6. The indoor unit of the air conditioner according to claim 1, characterized in that, The condensate delivery component (22) is a liquid storage tank, which is connected to the condensate receiving component (21) and the drain component (23) respectively. At least part of the high-pressure high-temperature refrigerant pipe (14) is coiled into multiple loops and placed in the liquid storage tank.

7. The air conditioning indoor unit according to any one of claims 1-6, characterized in that, The high-pressure, high-temperature refrigerant pipe (14) is made of metallic copper.

8. The indoor unit of the air conditioner according to any one of claims 1-6, characterized in that, The indoor unit of the air conditioner also includes a heat insulation unit (3), and the heat insulation unit (3) is provided on both the high-pressure high-temperature refrigerant pipe (14) and the low-pressure low-temperature refrigerant pipe (12).

9. The air conditioning indoor unit according to any one of claims 1-6, characterized in that, The indoor unit of the air conditioner also includes a first fan (4), which is mounted on the evaporator (11) and is used to accelerate the flow of air around the evaporator (11).

10. An air conditioning system, characterized in that, The air conditioner includes an outdoor unit and an indoor unit as described in any one of claims 1-9. The outdoor unit includes a condenser and a second fan. The second fan is installed on the side of the condenser. The condenser is connected to the high-pressure high-temperature refrigerant pipe (14) and the condenser is connected to the evaporator (11).

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