Heat exchanger and air conditioner indoor unit

Abstract

The invention provides a heat exchanger and an air conditioner indoor unit. The heat exchanger comprises fins and spray pipe pieces. At least one spray pipe piece is arranged in a fin gap, the spray pipe piece is of a hollow structure, a transmission space is formed in the spray pipe piece, first water outlet holes are formed in at least one side wall of the spray pipe piece, and the first water outlet holes communicate with the transmission space in the spray pipe piece and the outer side of the spray pipe piece. When water flows in the transmission space in the spraying pipe piece, the water in the transmission space can flow to the outer side of the spraying pipe piece through the first water outlet holes. The water flowing to the outer side of the spray pipe piece downwards flows along the outer wall of the spray pipe piece or is sprayed to the fins parallel to the spray pipe piece, so that the water in the transmission space is sprayed more uniformly after flowing out of the transmission space. And under the action of the heat exchanger, the water flowing out of the transmission space is volatilized by virtue of a large area of the heat exchanger, and is blown to the outside of the air conditioner under the action of a fan of the air conditioner to humidify the external environment of the air conditioner. The dry environment becomes moist, and the experience feeling and the comfort degree of a user are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioning, and in particular to a heat exchanger and an air conditioning indoor unit. Background Art

[0002] With the development of the times and the advancement of technology, the development trend of air conditioners is gradually moving towards diversification and high efficiency. In the cooling mode of traditional air conditioners, when the air passes through the heat exchanger, part of the water vapor is cooled and condensed into water, which is discharged through the heat exchanger, the water tray, and the drain pipe, so that the moisture in the air may continue to decrease, causing the room to become drier and reduce comfort. With the change of seasons, the moisture content in the air is constantly changing. Especially in autumn and winter, the moisture content in the air is low, which will also cause poor experience and low comfort for people's skin and senses. Summary of the invention

[0003] In view of the above problems, the present invention is proposed to provide an air conditioning humidification structure and an air conditioner that overcome the above problems or at least partially solve the above problems, which can solve the problem of poor comfort existing in existing air conditioners, improve the uniformity and continuity of humidification by uniform water distribution, and increase the humidification effect, thereby improving user experience and comfort.

[0004] Specifically, the present invention provides a heat exchanger. The heat exchanger comprises a plurality of fins, wherein the plurality of fins are arranged in parallel and spaced apart to form at least one fin gap;

[0005] One or more nozzle plates are arranged in at least one of the fin gaps;

[0006] The nozzle plate has a transmission space therein, and at least one side wall of the nozzle plate has a plurality of first water outlet holes connected to the transmission space, so that water in the transmission space flows out of the water outlet holes to the outside of the nozzle plate.

[0007] Optionally, the distribution density of the water outlet holes on the nozzle plate gradually increases from bottom to top.

[0008] Optionally, the transmission space is tapered from bottom to top; and the nozzle plate is tapered from bottom to top.

[0009] Optionally, the top end of the nozzle piece is sealed; or, a second water outlet hole is provided at the top end of the nozzle piece.

[0010] Optionally, the nozzle sheets and the fins are arranged alternately in sequence, and adjacent nozzle sheets and fins are arranged at intervals;

[0011] The lower end of the nozzle plate is connected to a water pipe so that the water pipe transmits water to the nozzle plate;

[0012] The water delivery pipe is arranged horizontally.

[0013] Optionally, the cross-sectional area of ​​the water pipe gradually decreases along the direction of water flow in the water pipe.

[0014] Optionally, the height of the top of the nozzle plate is not higher than the height of the top of the fin; or

[0015] The height of the top end of the nozzle plate is not higher than the height of the top end of the fin.

[0016] Furthermore, the present invention also provides an air-conditioning indoor unit, wherein the air-conditioning indoor unit comprises any one of the above-mentioned heat exchangers.

[0017] Optionally, the air conditioner indoor unit further includes:

[0018] A water storage device, the water storage device is arranged at the lower part of the heat exchanger;

[0019] A water pump is arranged on the communication route between the water storage device and the water delivery pipe so that the water in the water storage device is pumped to the water delivery pipe.

[0020] The heat exchanger of the present invention includes fins and nozzle plates. At least one nozzle plate is provided in the gap between the fins. The nozzle plate is a hollow structure with a transmission space inside. A first water outlet is provided on at least one side wall of the nozzle plate. The first water outlet connects the transmission space inside the nozzle plate and the outside of the nozzle plate. When water flows in the transmission space inside the nozzle plate, the water in the transmission space can flow to the outside of the nozzle plate through the first water outlet. The water flowing to the outside of the nozzle plate flows downward along the outer wall of the nozzle plate, or is sprayed onto the fins arranged parallel to the nozzle plate, so that the water in the transmission space is sprayed more evenly after flowing out of the transmission space. Under the action of the heat exchanger, the water flowing out of the transmission space volatilizes with the help of the large area of ​​the heat exchanger, and is blown to the outside of the air conditioner under the action of the fan of the air conditioner, so as to humidify the external environment of the air conditioner. The dry environment becomes moist, which improves the user experience and comfort.

[0021] Based on the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings, those skilled in the art will become more aware of the above and other objects, advantages and features of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Hereinafter, some specific embodiments of the present invention will be described in detail in an exemplary and non-limiting manner with reference to the accompanying drawings. The same reference numerals in the accompanying drawings indicate the same or similar components or parts. It should be understood by those skilled in the art that these drawings are not necessarily drawn to scale. In the accompanying drawings:

[0023] Figure 1 is a schematic structural diagram of a heat exchanger according to an embodiment of the present invention;

[0024] Figure 2 is a schematic diagram of a partial structure of an air conditioner according to an embodiment of the present invention;

[0025] Figure 3 is a partial structural schematic diagram of a nozzle plate according to an embodiment of the present invention;

[0026] Figure 4 is a partial structural schematic diagram of a nozzle plate according to another embodiment of the present invention;

[0027] Figure 5 is a working principle diagram of a nozzle piece according to an embodiment of the present invention;

[0028] Figure 6 It is a working principle diagram of a nozzle piece according to another embodiment of the present invention. DETAILED DESCRIPTION

[0029] Refer to the following Figures 1 to 6 To describe the heat exchanger and air-conditioning indoor unit of the embodiment of the present invention. In the description of this embodiment, it should be understood that the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features, that is, include one or more of the features. In the description of the present invention, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined. When a feature "includes or contains" one or some of the features it covers, unless otherwise specifically described, this indicates that other features are not excluded and may further include other features.

[0030] Unless otherwise clearly defined and limited, the terms "set", "install", "connect", "connect", "fix", "couple" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. A person skilled in the art should be able to understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0031] In addition, in the description of this embodiment, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature between them. That is, in the description of this embodiment, the first feature being "above", "above", and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. The first feature being "below", "below", or "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0032] In the description of the present embodiment, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0033] Figure 1 is a schematic structural diagram of a heat exchanger according to an embodiment of the present invention, as shown in Figure 1 As shown, and refer to Figures 2 to 6 ,

[0034] The embodiment of the present invention provides a heat exchanger 100. The heat exchanger 100 includes a plurality of fins 120, which are arranged in parallel and spaced apart to form at least one gap between the fins 120. One or more nozzle plates 110 are arranged in at least one gap between the fins 120. The nozzle plate 110 has a transmission space therein, and at least one side wall of the nozzle plate 110 has a plurality of first water outlet holes 111 connected to the transmission space, so that water in the transmission space flows out from the water outlet holes to the outside of the nozzle plate 110.

[0035] In this embodiment, the working principle of the heat exchanger 100 is as follows: at least one nozzle plate 110 is arranged in the gap between the fins 120, the nozzle plate 110 is a hollow structure, and has a transmission space inside, and a first water outlet hole 111 is opened on at least one side wall of the nozzle plate 110, and the first water outlet hole 111 connects the transmission space inside the nozzle plate 110 and the outside of the nozzle plate 110. When water flows in the transmission space inside the nozzle plate 110, the water in the transmission space can flow to the outside of the nozzle plate 110 through the first water outlet hole 111. The water flowing to the outside of the nozzle plate 110 flows downward along the outer wall of the nozzle plate 110, or is sprayed onto the fins 120 arranged parallel to the nozzle plate 110, so that the water in the transmission space is sprayed more evenly after flowing out of the transmission space. Under the action of the heat exchanger 100, the water flowing out of the transmission space volatilizes with the help of the large area of ​​the heat exchanger 100, and under the action of the fan of the air conditioner, the airflow passes through the gap between the fin 120 and the nozzle plate 110, and / or the gap between the fin 120 and the fin 120, and / or the gap between the nozzle plate 110 and the nozzle plate 110, and then blows to the outside of the air conditioner to humidify the external environment of the air conditioner. The dry environment becomes moist, which improves the user experience and comfort.

[0036] In some embodiments of the present invention, the distribution density of the first water outlet holes 111 on the nozzle plate 110 gradually increases from bottom to top.

[0037] In this embodiment, the plurality of first water outlet holes 111 on the side wall of the nozzle plate 110 are arranged densely at the top and sparsely at the bottom to prevent excessive water in the internal transmission space of the nozzle plate from being sprayed out at the bottom of the nozzle plate, causing loss of humidification water.

[0038] In some embodiments of the present invention, the transmission space is tapered from bottom to top. The nozzle plate 110 is tapered from bottom to top.

[0039] In this embodiment, the nozzle plate 110 is tapered from bottom to top, and the water pressure increases at the upper end of the nozzle plate 110. This facilitates the humidification water at the upper end of the nozzle plate 110 to flow out through the first water outlet 111 and be sprayed onto the fins 120, making full use of the large area of ​​the heat exchanger 100 and improving the water uniformity effect.

[0040] In some embodiments of the present invention, the top of the nozzle plate 110 is sealed. In this embodiment, the top of the nozzle plate 110 is sealed, which reduces the outflow channel of the humidification water inside the nozzle plate 110 and increases the water pressure inside the nozzle plate 110, which is conducive to improving the water uniformity effect.

[0041] In some embodiments of the present invention, a second water outlet hole 112 is disposed at the top of the nozzle plate 110 .

[0042] In this embodiment, a second water outlet hole 112 is provided at the top of the nozzle plate 110. Water is transmitted from the lower end to the top of the nozzle plate 110, and the water transmitted to the top is sprayed out from the second water outlet hole 112. When the water flows out from the second water outlet hole 112, it may flow down along the outer wall of the water spray pipe directly according to the pressure, or it may spray to the adjacent fin 120 due to the horizontal speed when leaving the top of the water spray pipe. The second water outlet hole 112 can be of various shapes, such as square, round, oval, irregular, etc.

[0043] In this embodiment, a second water outlet hole 112 is set at the top of the nozzle plate 110. Water flowing out of the second water outlet hole 112 can flow from the top of the heat exchanger 100 to the bottom of the heat exchanger 100, increasing the flow area of ​​humidification water, which is beneficial to improving the water uniformity effect and humidification effect.

[0044] In some embodiments of the present invention, the second water outlet hole 112 is in a long strip shape, and the second water outlet hole 112 extends along the length direction of the top end of the nozzle plate 110 . There is one second water outlet hole 112 .

[0045] In this embodiment, only one second water outlet hole 112 is provided, and the length direction of the second water outlet hole 112 is consistent with the length direction of the nozzle plate 110, so that water can flow out of the second water outlet hole 112 and downward along the outer wall.

[0046] Of course, in some embodiments of the present invention, the second water outlet holes 112 may also be in the shape of a long strip, and the second water outlet holes extend along the length direction of the top end of the nozzle plate 110 , and there are two second water outlet holes 112 arranged in parallel.

[0047] In some embodiments of the present invention, the second water outlet holes 112 are arranged in a row, each row of the second water outlet holes 112 is multiple, and the multiple second water outlet holes 112 are arranged along the length direction of the top of the nozzle plate 110. In this embodiment, multiple second water outlet holes 112 are provided, and the water outlet is more uniform compared to one long strip-shaped second water outlet hole 112.

[0048] Of course, in some embodiments of the present invention, the second water outlet holes 112 are arranged in two parallel rows. There are multiple second water outlet holes 112 in each row, and the multiple second water outlet holes 112 are arranged along the length direction of the top of the nozzle plate 110.

[0049] In some embodiments of the present invention, the second water outlet holes 112 are arranged in two rows, and the second water outlet holes 112 in one row are arranged alternately with the second water outlet holes 112 in another row.

[0050] In some embodiments of the present invention, the nozzle plates 110 and the fins 120 are arranged alternately in sequence, and the adjacent nozzle plates 110 and fins 120 are arranged at intervals. In this embodiment, the nozzle plates 110 and the fins 120 are arranged alternately in sequence. That is, the adjacent positions on both sides of each nozzle plate 110 are provided with fins 120, and the adjacent positions on both sides of each fin 120 are also provided with nozzle plates 110, and there are gaps between adjacent nozzle plates 110 and fins 120. This arrangement makes the water flowing out of the internal transmission space of the nozzle plate 110 more evenly distributed on the heat exchanger 100, and the water uniformity effect is improved.

[0051] In some embodiments of the present invention, the heat exchanger 100 further includes a water pipe 200. The lower end of the nozzle plate 110 is connected to the water pipe 200. In this embodiment, the lower end of the nozzle plate 110 is connected to the water pipe 200, and water can flow through the water pipe 200 to be transmitted to the nozzle plate 110.

[0052] In some embodiments of the present invention, the water pipe 200 is tilted downward along the water flow direction. In this embodiment, the tilted downward arrangement facilitates the water in the water pipe 200 to flow to the most downstream end. Of course, in some embodiments of the present invention, the water pipe 200 can also be tilted upward along the water flow direction.

[0053] In some embodiments of the present invention, the water pipe 200 is horizontally arranged. In this embodiment, the water pipe 200 is horizontally arranged rather than tilted, which has a higher utilization rate in space utilization and can avoid the phenomenon of water shortage at the end with a higher horizontal position.

[0054] In some embodiments of the present invention, the cross-sectional area of ​​the water pipe 200 gradually decreases along the direction of water flow in the water pipe 200. In this embodiment, because the water flowing inside the water pipe 200 during the water delivery process will be injected into the nozzle plate 110, the cross-sectional area of ​​the water pipe 200 gradually decreases along the direction of water flow in the water pipe 200, which can avoid insufficient water supply power from the downstream end of the water pipe 200 to the nozzle plate 110.

[0055] In some embodiments of the present invention, the height of the top of the nozzle plate 110 is lower than the height of the top of the fin 120. In this embodiment, the height of the top of the nozzle plate 110 is lower than the height of the top of the fin 120, which can effectively save space.

[0056] In some embodiments of the present invention, the height of the top of the nozzle plate 110 is higher than the height of the top of the fin 120. In this embodiment, the height of the top of the nozzle plate 110 is higher than the height of the top of the fin 120, which can make the spraying effect of the second water outlet 112 better and help improve the water uniformity effect.

[0057] Furthermore, the present invention also provides an air-conditioning indoor unit, which includes the heat exchanger 100 in any of the above embodiments.

[0058] In some embodiments of the present invention, the air conditioner indoor unit includes a water storage device 400. In this embodiment, the water storage device 400 is used to supply water to the transmission space of the nozzle plate 110 to ensure the continuity of water supply.

[0059] In some embodiments of the present invention, the air conditioner indoor unit further includes a water pump 300. The water pump 300 is used to force the water in the water storage device 400 to enter the transmission space of the nozzle plate 110. In this embodiment, the water pump 300 provides continuous power for the transmission of water.

[0060] In some embodiments of the present invention, the water storage device 400 is a water receiving tray, which is disposed below the heat exchanger 100 .

[0061] In this embodiment, the water receiving pan is arranged below the heat exchanger 100, and can receive the unevaporated water on the heat exchanger 100, thereby preventing the water flowing down from the heat exchanger 100 from flowing into the room and soaking the electrical components, thereby improving the safety performance of the indoor unit of the air conditioner.

[0062] At this point, those skilled in the art should recognize that, although multiple exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications that conform to the principles of the present invention can still be directly determined or derived based on the content disclosed in the present invention without departing from the spirit and scope of the present invention. Therefore, the scope of the present invention should be understood and recognized as covering all these other variations or modifications.

Claims

1. A heat exchanger, characterized in that: The heat exchanger comprises a plurality of fins, wherein the plurality of fins are arranged in parallel and spaced apart to form at least one fin gap; One or more nozzle plates are arranged in at least one of the fin gaps; The nozzle plate has a transmission space therein, and at least one side wall of the nozzle plate has a plurality of first water outlet holes connected to the transmission space, so that water in the transmission space flows out of the water outlet holes to the outside of the nozzle plate.

2. The heat exchanger according to claim 1, characterized in that: The distribution density of the water outlet holes on the nozzle plate gradually increases from bottom to top.

3. The heat exchanger according to claim 1, characterized in that: The transmission space is gradually contracted from bottom to top; and the nozzle plate is gradually contracted from bottom to top.

4. The heat exchanger according to claim 1, characterized in that: The diameter of the water outlet hole gradually decreases along the water flow direction of the nozzle plate.

5. The heat exchanger according to claim 1, characterized in that: The top end of the nozzle piece is sealed; or, the top end of the nozzle piece is provided with a second water outlet.

6. The heat exchanger according to claim 1, characterized in that The nozzle sheets and the fins are arranged alternately in sequence, and adjacent nozzle sheets and fins are arranged at intervals; The lower end of the nozzle plate is connected to a water pipe so that the water pipe transmits water to the nozzle plate; The water delivery pipe is arranged horizontally.

7. The heat exchanger according to claim 6, characterized in that The cross-sectional area of ​​the water pipe gradually decreases along the water flow direction in the water pipe.

8. The heat exchanger according to claim 1, characterized in that The height of the top of the nozzle plate is not higher than the height of the top of the fin; or The height of the top end of the nozzle plate is not higher than the height of the top end of the fin.

9. An air conditioner indoor unit, characterized in that Comprising the heat exchanger according to any one of claims 1 to 8.

10. The air conditioner indoor unit according to claim 9, characterized in that: Also includes: A water storage device, the water storage device is arranged at the lower part of the heat exchanger; A water pump is arranged on the communication route between the water storage device and the water delivery pipe so that the water in the water storage device is pumped to the water delivery pipe.

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