Air conditioner indoor unit and air conditioner thereof
By designing the partition and conduction of air valves in the air conditioning indoor unit, the defrost efficiency of air conditioning outdoor unit is improved by using fresh air ducts and exhaust air ducts, the problem of low defrost efficiency in the prior art is solved, and a faster defrost process and higher efficiency are achieved.
Patent Information
- Application Number
- CN202421851389.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-31
- Publication Date
- 2025-06-03
- Estimated Expiration
- 2034-07-31
AI Technical Summary
In the winter heating conditions of air-conditioning outdoor units, frost is prone to occur. The existing technology solves the problem through the defrost mode, but it causes the heat absorption of the indoor heat exchanger to decrease, the defrost process becomes longer, and the efficiency is reduced.
An air conditioning indoor unit is designed to use the first air valve and the second air valve to transport fresh air with a higher outdoor temperature to the indoor heat exchanger through the partition and conduction of the first air valve and the second air valve, and discharge fresh air after heat exchange through the exhaust air duct, increasing the heat absorption of the heat exchanger and shortening the defrost time.
It improves the defrost efficiency, shortens the defrost time, and enhances the defrost capability of air-conditioning outdoor units.
Smart Images
Figure CN222937900U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of air conditioners, and particularly relates to an indoor unit of an air conditioner and an air conditioner. Background Art
[0002] In the heating mode in winter for a household split wall-mounted air conditioner, the outdoor unit of the air conditioner is prone to frosting, and the frosting problem is solved through a defrosting mode. When the defrosting mode is turned on, the indoor fan usually stops running to avoid blowing cold air directly at the user. However, this approach results in a reduction in the heat absorption of the indoor heat exchanger, making the defrosting process of the outdoor unit of the air conditioner longer. Summary of the Utility Model
[0003] The utility model provides an indoor unit of an air conditioner and an air conditioner to solve the technical problem of reduced defrosting efficiency.
[0004] To achieve the above object, an indoor unit of an air conditioner proposed in this application includes a housing, a fresh air duct, an indoor heat exchange duct, an exhaust duct, a first air valve, and a second air valve. The fresh air duct is provided with a fresh air outlet formed on the surface of the housing, the exhaust duct is provided with a dirty air inlet formed on the surface of the housing, the first air valve is used to conduct or block the fresh air duct and the indoor heat exchange duct, and the second air valve is used to conduct or block the indoor heat exchange duct and the exhaust duct.
[0005] Optionally, in one embodiment, the housing includes an indoor heat exchange housing part and a fresh air housing part connected to each other. The indoor heat exchange housing part forms the indoor heat exchange duct, the fresh air housing part forms the fresh air duct and the exhaust duct, and the first air valve and the second air valve are respectively formed between the indoor heat exchange housing part and the fresh air housing part.
[0006] Optionally, in one embodiment, the fresh air duct is provided with a fresh air inlet, the exhaust duct is provided with an exhaust outlet, the fresh air inlet is configured to be connected to a fresh air pipe, and the exhaust outlet is configured to be connected to an exhaust pipe.
[0007] Optionally, in one embodiment, the fresh air outlet is provided with a third air valve, and the dirty air inlet is provided with a fourth air valve.
[0008] Optionally, in one embodiment, the dirty air inlet is located at the bottom of the housing.
[0009] Optionally, in one embodiment, the indoor heat exchange duct is provided with an indoor air inlet, and the fresh air outlet and the indoor air inlet are arranged adjacent to each other at the top of the housing.
[0010] This application also proposes an air conditioner including the indoor unit of the air conditioner as described above.
[0011] Optionally, in one embodiment, a fresh air duct and an exhaust duct are further included.
[0012] Optionally, in one embodiment, the fresh air duct and the exhaust duct are arranged adjacent to each other, so that the fresh air in the fresh air duct and the exhaust air in the exhaust duct perform heat exchange through the pipe walls of the fresh air duct and / or the exhaust duct.
[0013] Optionally, in one embodiment, the exhaust duct is sleeved outside the fresh air duct, or the fresh air duct is sleeved outside the exhaust duct.
[0014] The indoor unit of the air conditioner provided by the present application, on the premise of ensuring the fresh air function and the exhaust function of the air conditioner through the partition of the first air valve and the second air valve, the first air valve and the second air valve are conducted so that the air conditioner can use the existing fresh air duct to convey the fresh air with a higher outdoor temperature to the indoor-side heat exchanger located in the indoor heat exchange duct during defrosting, and use the existing exhaust duct to discharge the fresh air after heat exchange, so that the heat absorption amount of the heat exchanger in the defrosting mode increases, the defrosting duration is shortened, and the defrosting efficiency is improved. Description of the Drawings
[0015] In order 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 use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on the structures shown in these drawings without creative efforts.
[0016] Figure 1 It is a schematic structural diagram of the air conditioner of the present application.
[0017] Explanation of the reference numerals in the drawings:
[0018] 1. Housing; 11. Indoor heat exchange housing member; 111. Indoor air inlet; 112. Indoor air outlet; 12. Fresh air housing member; 121. Fresh air outlet; 122. Polluted air inlet; 2. Fresh air duct; 3. Indoor heat exchange duct; 4. Exhaust duct; 5. First air valve; 6. Second air valve; 7. Third air valve; 8. Fourth air valve; 9. Fresh air duct; 91. Main pipe; 92. Bypass pipe; 10. Exhaust duct; 101. Wall; 102. Heat exchanger.
[0019] The realization of the purpose, functional characteristics and advantages of the present application will be further described with reference to the embodiments and the drawings. Detailed Embodiments
[0020] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the 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.
[0021] An embodiment of the present application provides an air conditioner indoor unit to solve the problem of low defrosting efficiency. The following will be described in conjunction with the accompanying drawings.
[0022] In the embodiment of the present application, as Figure 1 shown, the air conditioner indoor unit includes a housing 1, a fresh air duct 2, an indoor heat exchange duct 3, an exhaust duct 4, a first air valve 5 and a second air valve 6. The fresh air duct 2 is provided with a fresh air outlet 121 formed on the surface of the housing 1, and the exhaust duct 4 is provided with a dirty air inlet 122 formed on the surface of the housing 1. The first air valve 5 is used to conduct or block the fresh air duct 2 and the indoor heat exchange duct 3, and the second air valve 6 is used to conduct or block the indoor heat exchange duct 3 and the exhaust duct 4.
[0023] It should be noted that the fresh air duct 2 refers to the duct for introducing fresh air from the outside of the housing 1, that is, the indoor side, to the outdoor side. The indoor heat exchange duct 3 refers to the space surrounded by the heat exchanger 102 of the air conditioner indoor unit and its surrounding structure. The incoming air of the air conditioner indoor unit exchanges heat or cold with the heat exchanger 102 by flowing through the indoor heat exchange duct 3, so as to blow out hot air or cold air. The exhaust duct 4 refers to the duct for discharging the dirty air on the indoor side to the outdoor side. It can be understood that the fresh air has two flow directions in the air conditioner indoor unit. One is that when the first air valve 5 is in the open state, the fresh air on the outdoor side sequentially passes through the fresh air duct 2, the first air valve 5 and the indoor heat exchange duct 3. The other is that when the first air valve 5 is in the closed state, the fresh air on the outdoor side sequentially passes through the fresh air duct 2 and the fresh air outlet 121, and finally flows to the indoor side. The dirty air also has two flow directions in the air conditioner indoor unit. One is that when the second air valve 6 is in the open state, the dirty air sequentially passes through the indoor heat exchange duct 3, the second air valve 6 and the exhaust duct 4, and finally is discharged to the outdoor side. The other is that when the second air valve 6 is in the closed state, the dirty air on the indoor side sequentially passes through the dirty air inlet 122 and the exhaust duct 4, and finally is discharged to the outdoor side.
[0024] When the fresh air function needs to be used, the first air valve 5 can be utilized to block the fresh air duct 2 and the indoor heat exchange duct 3, and the second air valve 6 can be used to block the exhaust duct 4 and the indoor heat exchange duct 3, enabling the fresh air duct 2 to directly introduce outdoor fresh air into the indoor environment through the fresh air outlet 121. Meanwhile, the indoor turbid air can be inhaled into the exhaust duct 4 through the dirty air inlet 122 and then discharged to the outdoor environment through the exhaust duct 4, realizing the two-way fresh air function of simultaneously inhaling fresh air and discharging dirty air. When the defrosting mode is turned on, the first air valve 5 can be made to be in a conducting state to allow fresh air from the fresh air duct 2 to enter the indoor heat exchange duct 3 and deliver relatively warmer gas to the heat exchanger 102, increasing the heat absorption amount of the heat exchanger 102. As a result, the refrigerant in the heat exchanger 102 has a higher temperature when flowing into the outdoor unit of the air conditioner, shortening the defrosting time of the outdoor unit of the air conditioner and improving the defrosting efficiency. At the same time, the second air valve 6 is made to be in a conducting state, and the gas after heat exchange is discharged through the exhaust duct 4 to allow fresh air to continuously enter the indoor heat exchange duct 3.
[0025] In some embodiments, as Figure 1 shown, the housing 1 includes an indoor heat exchange housing part 11 and a fresh air housing part 12 that are connected to each other. The indoor heat exchange housing part 11 forms the indoor heat exchange duct 3, the fresh air housing part 12 forms the fresh air duct 2 and the exhaust duct 4, and the first air valve 5 and the second air valve 6 are respectively formed between the indoor heat exchange housing part 11 and the fresh air housing part 12. In this way, when the first air valve 5 and the second air valve 6 are in a blocking state, the indoor heat exchange housing part 11 and the fresh air housing part 12 can maintain their respective functions without interference.
[0026] In some embodiments, as Figure 1 shown, the fresh air duct 2 is provided with a fresh air inlet, and the exhaust duct 4 is provided with an exhaust outlet. The fresh air inlet is configured to be connected to the fresh air pipe 9, and the exhaust outlet is configured to be connected to the exhaust pipe 10.
[0027] In some embodiments, as Figure 1 shown, the fresh air outlet 121 is provided with a third air valve 7, and the dirty air inlet 122 is provided with a fourth air valve 8. In this way, the opening and closing of the fresh air function are controlled by the third air valve 7, and the opening and closing of the exhaust function are controlled by the fourth air valve 8.
[0028] In some embodiments, in the defrosting mode, the first air valve 5 and the fourth air valve 8 are respectively located at the head end and the tail end of the air flow direction in the indoor heat exchange duct 3. In this way, the air flow in the indoor heat exchange housing 1 is continuously discharged, accelerating the update speed and promoting heat exchange with the heat exchanger 102.
[0029] In some embodiments, as Figure 1 shown, the dirty air inlet 122 is located at the bottom of the housing 1. In this way, it is convenient to give priority to discharging the turbid air near the user indoors.
[0030] In some embodiments, as Figure 1 shown, the indoor heat exchange air duct 3 is provided with an indoor air inlet 111 and an indoor air outlet 112. The fresh air outlet 121 and the indoor air inlet 111 are arranged adjacent to each other on one side of the housing 1 facing the wall 101. It should be noted that the indoor air inlet 111 and the indoor air outlet 112 are formed on the indoor heat exchange housing member 11. In this way, the fresh air discharged from the fresh air outlet 121 into the room can quickly exchange heat with the indoor heat exchanger 102 through the adjacent indoor air inlet 111, avoiding the rapid rise or fall of the indoor temperature caused by the dissipation of the fresh air.
[0031] In some embodiments, as Figure 1 shown, the indoor heat exchange air duct 3 is provided with an indoor air inlet 111. The fresh air outlet 121 and the indoor air inlet 111 are arranged adjacent to each other at the top of the housing 1. In this way, a physical barrier is formed by the indoor unit of the air conditioner, preventing the fresh air from sinking to a place far from the indoor air inlet 111, so that the fresh air discharged from the fresh air outlet 121 can be quickly sucked into the indoor air inlet 111, and after being temperature and humidity adjusted through the indoor heat exchange air duct 3, it is discharged into the room again, thereby improving the comfort of the indoor environment.
[0032] The embodiment of the present application also provides an air conditioner, which includes an indoor unit of the air conditioner. The specific structure of the indoor unit of the air conditioner refers to the above embodiments. Since this air conditioner adopts all the technical solutions of the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be elaborated here one by one.
[0033] Among them, in some embodiments, as Figure 1 shown, the air conditioner further includes a fresh air pipe 9 and an exhaust pipe 10. The fresh air pipe 9 is provided with the above-mentioned fresh air duct 2; the exhaust pipe 10 is communicated with the above-mentioned indoor heat exchange housing member 11, and at least part of the exhaust air duct 4 is formed in the exhaust pipe 10 and the indoor heat exchange housing member 11.
[0034] In some embodiments, as Figure 1 shown, the fresh air pipe 9 includes a main pipe 91 and a bypass pipe 92 communicating with the main pipe 91. The first air valve 5 is used to conduct or block the main pipe 91 and the indoor heat exchange air duct 3, and the third air valve 7 is used to conduct or block the bypass pipe 92 and the indoor side. To realize the introduction of fresh air into the indoor heat exchange housing member 1 and the indoor side.
[0035] In some embodiments, as Figure 1As shown, the fresh air duct 9 and the exhaust air duct 10 are arranged adjacent to each other, so that the fresh air in the fresh air duct 9 and the exhaust air in the exhaust air duct 10 perform heat exchange through the pipe wall of the fresh air duct 9 and / or the exhaust air duct 10. Exemplarily, the pipe walls of the fresh air duct 9 and the exhaust air duct 10 are juxtaposed and abutted to achieve heat exchange, or the fresh air duct 9 and the exhaust air duct 10 are nested so that the fresh air contacts the outer wall of the exhaust air duct 10 or the exhaust air contacts the outer wall of the fresh air duct 9 to achieve heat exchange.
[0036] In some embodiments, as Figure 1 shown, the exhaust air duct 10 is sleeved outside the fresh air duct 9, or the fresh air duct 9 is sleeved outside the exhaust air duct 10. The nested structure is adopted to realize the heat exchange between the fresh air and the exhaust air, which plays a role in preheating or precooling the fresh air, and is beneficial to reducing the volume of the indoor unit of the air conditioner.
[0037] In some embodiments, the exhaust air duct 10 is sleeved outside the fresh air duct 9, and the fresh air inlet of the fresh air duct 9 is located outside the exhaust air duct 10.
[0038] Furthermore, the exhaust air duct 10 gradually slopes downward along the direction away from the indoor heat exchange housing 11. In this way, the formation of condensed water in the exhaust air duct 10 is promoted to drain, and it is avoided that the condensed water drips from the indoor unit of the air conditioner and affects the user experience.
[0039] In the above embodiments, the descriptions of each embodiment 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 understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more features.
[0040] The indoor unit of the air conditioner provided by the embodiments of the present application has been introduced in detail above. 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), a fresh air duct (2), an indoor heat exchange duct (3), an exhaust air duct (4), a first air valve (5) and a second air valve (6); the fresh air duct (2) is provided with a fresh air outlet (121) formed on the surface of the shell (1); the exhaust air duct (4) is provided with a dirty air inlet (122) formed on the surface of the shell (1); the first air valve (5) is used to connect or block the fresh air duct (2) and the indoor heat exchange duct (3); and the second air valve (6) is used to connect or block the indoor heat exchange duct (3) and the exhaust air duct (4).
2. The air conditioner indoor unit according to claim 1, characterized in that: The shell (1) comprises an indoor heat exchange shell (11) and a fresh air shell (12) which are connected to each other, the indoor heat exchange shell (11) forms the indoor heat exchange air duct (3), the fresh air shell (12) forms the fresh air duct (2) and the exhaust air duct (4), and the first air valve (5) and the second air valve (6) are respectively formed between the indoor heat exchange shell (11) and the fresh air shell (12).
3. The air conditioner indoor unit according to claim 2, characterized in that: The fresh air duct (2) is provided with a fresh air inlet, and the exhaust air duct (4) is provided with an exhaust air outlet. The fresh air inlet is configured to be connected to a fresh air pipe (9), and the exhaust air outlet is configured to be connected to an exhaust air pipe (10).
4. The air conditioner indoor unit according to claim 1, characterized in that: The fresh air outlet (121) is provided with a third air valve (7), and the dirty air inlet (122) is provided with a fourth air valve (8).
5. The air conditioner indoor unit according to any one of claims 1 to 4, characterized in that: The dirty air inlet (122) is located at the bottom of the housing (1).
6. The air conditioner indoor unit according to claim 1, characterized in that: The indoor heat exchange air duct (3) is provided with an indoor air inlet (111), and the fresh air outlet (121) and the indoor air inlet (111) are arranged adjacent to each other at the top of the shell (1).
7. An air conditioner, characterized in that: It comprises an air-conditioning indoor unit as described in any one of claims 1-6.
8. The air conditioner according to claim 7, characterized in that: It also includes a fresh air duct (9) and an exhaust air duct (10).
9. The air conditioner according to claim 8, characterized in that: The fresh air duct (9) and the exhaust air duct (10) are arranged adjacent to each other so that the fresh air in the fresh air duct (9) and the exhaust air in the exhaust air duct (10) can exchange heat through the tube wall of the fresh air duct (9) and / or the exhaust air duct (10).
10. The air conditioner according to claim 8, characterized in that: The exhaust duct (10) is sleeved outside the fresh air duct (9), or the fresh air duct (9) is sleeved outside the exhaust duct (10).