Fan blade and air conditioner

Abstract

The fan blade comprises a main body part and a plurality of fan blades connected to the main body part, and each fan blade comprises a fan blade body and a light absorption heating layer covering the surface of the fan blade body. The light-absorbing heating layer covers the fan blade body, so that radiation energy such as sunlight can be absorbed in the daytime in rainy and snowy weather in winter, a certain amount of heat can be stored, the surface of the fan blade is kept at a certain temperature within a certain time, and the fan blade is prevented from being frozen due to accumulated snow.

Description

Technical Field

[0001] This utility model relates to the field of air conditioning technology, and in particular to a fan blade and an air conditioner. Background Technology

[0002] Evaporative cooling air conditioning technology is a cooling technology that utilizes the heat absorption of water evaporation. Water has the ability to evaporate in the air. Under conditions where there is no other heat source, the heat and moisture exchange process between water and air involves the air transferring sensible heat to the water, causing the air temperature to drop. Due to water evaporation, the humidity of the air not only increases, but the water vapor entering the air also carries back some latent heat of vaporization. When these two types of heat are equal, the water temperature reaches the wet-bulb temperature of the air. As long as the air is not saturated, cooling can be achieved by spraying circulating water directly (or through a packing layer) onto the air. When conditions permit, the cooled air can be used as supply air to lower the room temperature. This method of air treatment is called evaporative cooling air conditioning.

[0003] For evaporative cooling air conditioners, since the outdoor unit generally guides airflow vertically to exchange heat with the outdoor heat exchanger, the fan blades are usually set horizontally. This causes snow and ice to accumulate at the outdoor unit's air outlet in northern weather, leading to blockage and malfunctions. Utility Model Content

[0004] The main objective of this utility model embodiment is to provide a fan blade and an air conditioner, which aims to improve the technical problem of snow and ice accumulation at the air outlet of the outdoor unit of an evaporative cooling air conditioner in the prior art.

[0005] An embodiment of this utility model provides a wind blade, which includes a main body and a plurality of fan blades connected to the main body. The fan blades include a fan blade body and a light-absorbing and heat-generating layer covering the surface of the fan blade body.

[0006] In some embodiments of this utility model, a cavity is provided inside the fan blade body, and an energy storage unit is provided in the cavity. The energy storage unit is used to absorb heat when the temperature of the fan blade body is higher than a preset temperature, and to release heat when the temperature of the fan blade body is lower than the preset temperature.

[0007] In some embodiments of this utility model, a first through hole is provided on the fan blade body. The first through hole is used to connect the surface of the fan blade body and the cavity. The energy storage part passes through the first through hole and is connected to the light-absorbing and heating layer.

[0008] In some embodiments of this utility model, an air conditioner is also provided, the air conditioner comprising:

[0009] The aforementioned fan blades are installed at the air outlet of the outdoor unit of the air conditioner;

[0010] A drive motor, the shaft of which is connected to the main body.

[0011] In some embodiments of this utility model, from the bottom end of the fan blade to the top end of the fan blade, the angle between the fan blade and the first plane gradually increases, and the first plane is a plane perpendicular to the axis of the rotating shaft;

[0012] The minimum angle between the fan blade and the first plane is 40°, and the maximum angle between the fan blade and the first plane is 90°.

[0013] In some embodiments of this utility model, the fan blade includes a straight section and an inclined section connected in sequence. The inclined section is disposed on the side of the straight section near the drive motor. The angle between the straight section and the first plane is greater than or equal to 80° and less than or equal to 90°. The angle between the inclined section and the first plane is greater than or equal to 40° and less than or equal to 90°. The first plane is a plane perpendicular to the axis of the rotating shaft.

[0014] In some embodiments of this utility model, a guide portion is provided on the side of the fan blade body away from the drive motor. The guide portion protrudes from the surface of the fan blade body and is arranged along the direction from the top end of the fan blade to the bottom end of the fan blade.

[0015] In some embodiments of this utility model, a second through hole is provided on the fan blade body. The second through hole is elongated along a first direction, which is the direction from the end of the fan blade body near the drive motor to the end of the fan blade body away from the drive motor.

[0016] In some embodiments of this utility model, a vibration generator is provided on the fan blade, and the vibration generator is located on the side of the fan blade close to the motor.

[0017] In some embodiments of this utility model, a reflector is arranged around the air outlet, and the reflector is configured to focus light onto the fan blades.

[0018] An embodiment of this utility model provides a fan blade and an air conditioner. The fan blade has a light-absorbing and heat-generating layer on its body. During the daytime in winter rainy or snowy weather, it absorbs solar radiation and other radiant energy to retain a certain amount of heat, so that the surface of the fan blade can maintain a certain temperature for a certain period of time and prevent snow from accumulating and freezing on the fan blade. Attached Figure Description

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0020] Figure 1 This is a schematic diagram of a fan blade structure according to an embodiment of the present invention;

[0021] Figure 2 This is a schematic diagram of the fan blade body structure according to an embodiment of the present invention;

[0022] Figure 3 This is a schematic diagram of the fan blade body structure according to another embodiment of the present invention;

[0023] Figure 4 This is a schematic diagram of the outdoor unit of an air conditioner according to an embodiment of the present invention;

[0024] Figure 5 This is a schematic diagram of the internal structure of the outdoor unit of an air conditioner according to an embodiment of the present invention.

[0025] Reference numerals: 10, outdoor unit; 100, fan blade; 110, fan blade; 111, fan blade body; 112, light-absorbing and heat-generating layer; 113, energy storage unit; 120, main body; 200, air outlet; 300, drive motor. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0028] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0029] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0030] like Figures 1-5 As shown, this utility model provides a fan blade 100, which includes a main body 120 and a plurality of fan blades 110 connected to the main body 120. Each fan blade 110 includes a fan blade body 111 and a light-absorbing and heat-generating layer 112 covering the surface of the fan blade 110. The light-absorbing and heat-generating layer 112 is used to absorb the radiant energy of light and convert it into heat, thereby storing a certain amount of heat and maintaining a certain temperature on the surface of the fan blade for a certain period of time.

[0031] It is understandable that the fan blade body 111 is provided with a light-absorbing and heat-generating layer 112, which absorbs solar radiation energy during the daytime in winter rainy and snowy weather and thus retains a certain amount of heat, so that the surface of the fan blade 110 maintains a certain temperature for a certain period of time and prevents snow from accumulating and freezing on the fan blade.

[0032] Specifically, a solar heat-absorbing coating, such as a light-absorbing and heat-generating layer 112, can be coated on the surface of the fan blade body 111. Therefore, it can be seen that the coating on the fan blade body 111 forms a light-absorbing and heat-generating layer 112, which can prevent the fan blade 110 from accumulating snow and ice in winter rainy and snowy weather for a certain period of time.

[0033] In some embodiments, the light-absorbing and heat-generating layer 112 is covered only on the side of the fan blade body 111 facing away from the drive motor 300. That is, the side of the fan blade body 111 facing away from the drive motor 300 is the side facing the sunlight, which can absorb solar energy very well, while the side close to the drive motor 300 faces away from the sunlight and lacks the conditions to absorb radiant energy. By only placing the light-absorbing and heat-generating layer 112 on the side of the fan blade body 111 facing away from the drive motor 300, the heat absorption and energy storage efficiency can be guaranteed, while the coating cost of the light-absorbing and heat-generating layer 112 can also be saved.

[0034] In some embodiments, a cavity is provided inside the fan blade body 111, and an energy storage unit 113 is provided in the cavity. The energy storage unit 113 is used to absorb heat when the temperature of the fan blade body is higher than a preset temperature, and to release heat when the temperature of the fan blade body is lower than the preset temperature.

[0035] It should be noted that, under normal circumstances, the energy storage section 113 is mainly used to absorb excess heat from the surface of the fan blade 110 after the heat storage of the light-absorbing heating layer 112 is saturated, thereby increasing the overall heat storage capacity of the fan blade 110. Its energy storage section primarily uses phase change heat storage materials for heating.

[0036] In some embodiments, a first through hole is provided on the fan blade body 111, the first through hole is used to connect the surface of the fan blade body 111 and the cavity, and the energy storage unit 113 passes through the first through hole and is connected to the light-absorbing and heating layer 112.

[0037] It should be noted that the energy storage unit 113 and the light-absorbing and heating layer 112 are substantially connected, which can improve the thermal conductivity between the light-absorbing and heating layer 112 and the energy storage unit 113, thereby reducing the amount of heat transfer loss between them.

[0038] In some embodiments, the present invention also provides an air conditioner, which includes the aforementioned fan blade 100 and drive motor. The fan blade 100 is disposed at the air outlet 200 of the outdoor unit 10 of the air conditioner, and the rotating shaft of the drive motor 300 is connected to the main body 120 for driving the fan blade 100 to rotate.

[0039] Since the air conditioner has the fan blade 100 of some or all of the above embodiments, the air conditioner has at least some or all of the beneficial effects of the fan blade 100, which will not be described in detail here.

[0040] In some embodiments, from the bottom end of the fan blade 110 to the top end of the fan blade 110, the angle between the fan blade 110 and the first plane gradually increases, and the first plane is a plane perpendicular to the axis of rotation; the minimum angle between the fan blade 110 and the first plane is 40°, and the maximum angle between the fan blade 110 and the first plane is 90°.

[0041] It is understandable that restricting the fan blade 110 to an arc shape and limiting the minimum angle with the first plane is essentially limiting the minimum tilt of the fan blade 110, thereby ensuring that the fan blade 110 has a good tilt that allows snow and rainwater to flow down the fan blade 110 and avoids accumulating on the fan blade 110.

[0042] In some instances, the fan blade 110 includes a straight section and an inclined section connected in sequence. The inclined section is located on the side of the straight section closer to the drive motor 300. The angle between the straight section and the first plane is greater than or equal to 80° and less than or equal to 90°. The angle between the inclined section and the first plane is greater than or equal to 40° and less than or equal to 60°. The first plane is a plane perpendicular to the axis of rotation.

[0043] Understandably, the straight section is positioned higher than the inclined section, and the angle between the straight section and the first plane is greater than or equal to 80° and less than or equal to 90°. This allows a portion of the fan blade 110 to be almost parallel to the axis of rotation, thus preventing snow and ice accumulation on the straight section. At the same time, the inclined section is positioned at an angle greater than or equal to 40° and less than or equal to 60°, ensuring that the inclination of the inclined section has both a snow-prevention effect and a good airflow from the fan blade 100 when the fan blade 110 rotates.

[0044] In some embodiments, a guide portion is provided on the side of the fan blade body 111 away from the drive motor 300. The guide portion protrudes from the surface of the fan blade body 111 and is arranged along the direction from the top end of the fan blade 110 to the bottom end of the fan blade 110.

[0045] It is understandable that the guide portion protrudes from the surface of the fan blade body 111 to increase the surface area of ​​the light-absorbing and heat-generating layer 112 to a certain extent, that is, to increase the heat absorption of the light-absorbing and heat-generating layer 112. At the same time, the guide portion is set along the direction from the top end of the fan blade 110 to the bottom end of the fan blade 110, which can also promote the sliding of snow and rainwater and prevent snow accumulation.

[0046] In some examples, a second through hole is provided on the fan blade body 111. The second through hole is an elongated through hole along a first direction, which is the direction from the end of the fan blade body 111 near the drive motor 300 to the end of the fan blade body 111 away from the drive motor 300.

[0047] Understandably, the second through-hole is elongated along the first direction, allowing some of the snow falling on the fan blade 110 to pass through and preventing it from accumulating on the fan blade 110. If the second through-hole is positioned near the bottom of the fan blade 110, then the parts of the fan blade 110 that are more prone to snow accumulation will be prevented from accumulating snow.

[0048] In some embodiments, a vibration generator is provided on the fan blade 110, and the vibration generator is located on the side of the fan blade 110 close to the motor.

[0049] Understandably, by setting a vibration generator, the fan blades 110 can vibrate at a set time to prevent snow and ice buildup when the machine is stopped.

[0050] In some embodiments, a reflector is provided around the air outlet 200, and the reflector is configured to focus light onto the fan blade 110.

[0051] Specifically, a reflector is arranged around the side wall of the air outlet 200. By setting the angle of the reflector at various positions, the reflector can always concentrate light onto the fan blade 110 in some areas during the day.

[0052] Understandably, by concentrating light on the fan blade 110, the heat absorption efficiency of the light-absorbing heating layer 112 can be improved.

[0053] The above description is only an optional embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made based on the contents of the present utility model specification and drawings under the application concept of the present utility model, or direct / indirect applications in other related technical fields, are included in the patent protection scope of the present utility model.

Claims

1. A wind turbine blade, characterized in that, The fan blade includes a main body and a plurality of fan blades connected to the main body. The fan blade includes a fan blade body and a light-absorbing and heat-generating layer covering the surface of the fan blade body. The fan blade body has a cavity inside, and an energy storage unit is provided in the cavity. The energy storage unit is used to absorb heat when the temperature of the fan blade body is higher than a preset temperature, and to release heat when the temperature of the fan blade body is lower than the preset temperature.

2. The wind turbine blade according to claim 1, characterized in that, The fan blade body is provided with a first through hole, which is used to connect the surface of the fan blade body and the cavity. The energy storage unit passes through the first through hole and is connected to the light-absorbing and heating layer.

3. An air conditioner, characterized in that, include: The fan blade according to any one of claims 1-2 is disposed at the air outlet of the outdoor unit of the air conditioner; A drive motor, the shaft of which is connected to the main body.

4. The air conditioner according to claim 3, characterized in that, From the bottom end of the fan blade to the top end of the fan blade, the angle between the fan blade and the first plane gradually increases, and the first plane is a plane perpendicular to the axis of the rotating shaft; The minimum angle between the fan blade and the first plane is 40°, and the maximum angle between the fan blade and the first plane is 90°.

5. The air conditioner according to claim 3, characterized in that, The fan blade includes a straight section and an inclined section connected in sequence. The inclined section is located on the side of the straight section near the drive motor. The angle between the straight section and the first plane is greater than or equal to 80° and less than or equal to 90°. The angle between the inclined section and the first plane is greater than or equal to 40° and less than or equal to 90°. The first plane is a plane perpendicular to the axis of the rotating shaft.

6. The air conditioner according to claim 3, characterized in that, A guide portion is provided on the side of the fan blade body away from the drive motor. The guide portion protrudes from the surface of the fan blade body and is arranged along the direction from the top end of the fan blade to the bottom end of the fan blade.

7. The air conditioner according to claim 3, characterized in that, The fan blade body is provided with a second through hole, which is an elongated through hole along a first direction, the first direction being the direction from the end of the fan blade body near the drive motor to the end of the fan blade body away from the drive motor.

8. The air conditioner according to claim 3, characterized in that, A vibration generator is provided on the fan blade, and the vibration generator is located on the side of the fan blade close to the motor.

9. The air conditioner according to claim 3, characterized in that, A reflector is arranged around the air outlet, and the reflector is configured to focus light onto the fan blades.

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