Fan air duct structure

Abstract

The utility model provides a fan air duct structure, including main casing, the top of main casing is provided with the air outlet casing, is provided with main air duct in the main casing, main air duct is intercommunication with the inside of air outlet casing, just intercommunication installs semiconductor refrigeration unit, semiconductor refrigeration unit divides the inside space of air outlet casing two, is air outlet one and air outlet two respectively, air outlet one and air outlet two are intercommunication with main air duct, the fan is installed in main air duct. The utility model contains three air duct structures of one main air duct and two independent air outlet, and integrates semiconductor refrigeration unit in the intercommunication of main air duct and air outlet, has overcome the defect that traditional fan function is single, cannot provide cold and warm air simultaneously successfully.

Description

Technical Field

[0001] This utility model belongs to the field of fan manufacturing technology, and more specifically, it relates to a fan duct structure. Background Technology

[0002] Currently, most handheld fans on the market employ a single-duct design, typically consisting of a single duct cavity containing a fan. During operation, the fan draws air in through the inlet of the duct cavity, accelerates it, and then blows it out through the outlet at the other end. While this single-duct design provides basic airflow, its structure is relatively simple, resulting in limited functionality. Its main drawback is that it only provides airflow in a single direction at a single temperature (usually close to room temperature). Users requiring cool or hot air often need to configure separate cooling or heating devices, which not only takes up space and increases costs but also prevents the immediate and convenient provision of both cool and warm airflow on a single device, failing to meet users' diverse needs for adjustable temperature and integrated functions. Therefore, this paper researches and improves upon existing structures and their shortcomings, providing a fan duct structure with greater practical value. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides a fan duct structure, which is achieved by the following specific technical means:

[0004] A fan duct structure includes a main housing, an air outlet housing at the top of the main housing, a main air duct inside the main housing, the main air duct communicating with the interior of the air outlet housing, and a semiconductor cooling component installed at the communication point; the semiconductor cooling component divides the interior space of the air outlet housing into two parts, namely air outlet duct one and air outlet duct two, which are communicating with the main air duct; a fan is installed inside the main air duct.

[0005] Furthermore, the semiconductor cooling assembly includes a mounting bracket fixedly connected to the interior of the air outlet housing, wherein a semiconductor cooling plate is fixedly mounted at the center of the mounting bracket.

[0006] Furthermore, an adjustment plate is rotatably mounted on the bottom side of the main housing near the mounting bracket. A rotating shaft is provided on the top side of the adjustment plate. The main housing is provided with mounting holes that cooperate with the rotating shaft. Both ends of the rotating shaft pass through the mounting holes and are fixedly connected to the outside of the main housing with adjustment knobs.

[0007] Furthermore, a bracket is fixedly installed inside the main housing, and the fan is installed on the top side of the bracket; a battery and a mainboard are installed on the bottom side of the bracket, and the fan and battery are electrically connected to the mainboard.

[0008] Furthermore, a control panel is fixedly embedded on the outer side of the main housing, and the control panel is electrically connected to the motherboard.

[0009] Furthermore, an air inlet is provided at the bottom of the main housing, and a filter screen is fixedly installed inside the air inlet.

[0010] Furthermore, the air outlet housing is equipped with a hood near the air outlet of both air outlet duct one and air outlet duct two.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] This utility model comprises a three-duct structure with one main air duct and two independent air outlet ducts, and integrates a semiconductor cooling component at the connection between the main air duct and the air outlet ducts, successfully overcoming the shortcomings of traditional fans that have a single function and cannot provide both hot and cold air simultaneously. Its core advantages are reflected in:

[0013] (1) Achieve simultaneous independent output of cold and hot air: The semiconductor refrigeration component divides the air outlet housing into air outlet duct one and air outlet duct two. When the fan drives the airflow through the semiconductor refrigeration plate, it utilizes the Peltier effect of its cold and hot ends to enable the two air outlets to simultaneously output cold and hot air with different temperatures, thus meeting the user's immediate and differentiated needs for cold and hot air.

[0014] (2) Provides flexible airflow distribution: By rotating the adjustment plate installed on the bottom side of the main housing and the adjustment knob connected thereto, users can easily manually control the proportion of airflow entering the two air outlets, thereby adjusting the intensity of cold or hot air, or even biasing the output to a single air outlet. The operation is intuitive and more adaptable. Attached Figure Description

[0015] Figure 1 This is a half-sectional schematic diagram of the present invention.

[0016] Figure 2 This is a partial structural disassembly diagram of this utility model.

[0017] Figure 3 This is a schematic diagram of the overall structure of this utility model. Figure 1 .

[0018] Figure 4 This is a schematic diagram of the overall structure of this utility model. Figure 2 .

[0019] In the diagram, the correspondence between component names and drawing numbers is as follows:

[0020] 1. Main housing; 2. Exhaust housing; 3. Fan shroud; 4. Mounting bracket; 5. Semiconductor cooling plate; 6. Fan; 7. Adjustment plate; 8. Battery; 9. Main board; 10. Filter screen; 11. Adjustment knob; 12. Control panel;

[0021] 100. Main air duct; 200. Air outlet duct one; 300. Air outlet duct two. Detailed Implementation

[0022] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0023] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, 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, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] Example:

[0026] As attached Figure 1 To be continued Figure 4 As shown:

[0027] This utility model provides a fan duct structure, including a main housing 1, an air outlet housing 2 at the top of the main housing 1, a main air duct 100 inside the main housing 1, the main air duct 100 communicating with the interior of the air outlet housing 2, and a semiconductor cooling component installed at the communication point; the semiconductor cooling component divides the interior space of the air outlet housing 2 into two parts, namely air outlet duct 1 200 and air outlet duct 2 300, which are connected to the main air duct 100; a fan 6 is installed inside the main air duct 100, the fan 6 drives airflow to enter from the main air duct 100, and after being processed by the semiconductor cooling component, airflow with drastically different temperatures can be output simultaneously in air outlet duct 1 200 and air outlet duct 2 300, fundamentally solving the problem of the single function of traditional fans.

[0028] The semiconductor cooling component includes a mounting bracket 4 fixedly connected to the inside of the air outlet housing 2. A semiconductor cooling plate 5 is fixedly mounted at the center of the mounting bracket 4. The mounting bracket 4 is made of aluminum alloy, and both the cold and hot ends of the semiconductor cooling plate 5 are tightly attached to the mounting bracket 4 with thermally conductive silicone grease. The aluminum alloy mounting bracket 4 has excellent thermal conductivity. With the filling of thermally conductive silicone grease, it ensures that the heat / cooling generated by the cold and hot ends of the semiconductor cooling plate 5 can be efficiently and evenly transferred to the airflow channel wall in contact with it, which significantly improves the conversion efficiency and the cooling / heating effect on the airflow, while enhancing the stability and reliability of the component operation.

[0029] The main housing 1 has an adjusting plate 7 rotatably mounted on its bottom side near the mounting bracket 4. A rotating shaft is located on the top side of the adjusting plate 7. The main housing 1 has mounting holes that mate with the rotating shaft. Both ends of the rotating shaft pass through the mounting holes and are fixedly connected to an adjusting knob 11 on the outside of the main housing 1. Rotating the adjusting plate 7 changes its angle, thereby controlling the airflow distribution ratio between the first air outlet 200 and the second air outlet 300. Users can easily adjust the intensity of hot or cold air or direct the output to a single air outlet using the external adjusting knob 11. The rotating shaft and the mounting hole are interference-fitted, effectively eliminating assembly gaps and ensuring that the adjusting plate 7 is accurately and stably positioned without wobbling when rotating or stationary, thus improving the accuracy of airflow control and the ease of operation.

[0030] The main housing 1 has a bracket fixedly installed inside, and the fan 6 is installed on the top side of the bracket. The bottom side of the bracket has a battery 8 and a mainboard 9. The fan 6 and the battery 8 are electrically connected to the mainboard 9, and the mainboard 9 is also connected to a charging connector. The bracket realizes the compact and stable integration of the fan 6, the battery 8 and the mainboard 9 in a limited space. The battery 8 provides power support for the entire system, the mainboard 9 acts as the control core to coordinate the work of various components, and the charging connector facilitates the replenishment of power. This integrated layout optimizes the utilization of internal space and improves the portability and flexibility of the equipment.

[0031] The main housing 1 has a control panel 12 fixedly embedded on its outer side, and the control panel 12 is electrically connected to the motherboard 9.

[0032] The main housing 1 has an air inlet at its bottom, and a filter 10 is fixedly installed inside the air inlet. The main housing 1 also has multiple sets of auxiliary air inlets on its sides. The filter 10 at the bottom main air inlet can effectively intercept dust, hair and other impurities in the air being drawn in, preventing them from entering the main air duct 100, the fan 6 and the semiconductor cooling components, protecting the core components, extending the service life of the equipment, and ensuring the cleanliness of the output airflow. The auxiliary air inlets on the sides can increase the air intake area to a certain extent, which helps to reduce the air intake resistance when a large air volume is required, balance the internal airflow pressure, and improve the overall ventilation efficiency.

[0033] Among them, the air outlet housing 2 is equipped with a fan cover 3 near the air outlet of the first air outlet 200 and the second air outlet 300. The fan cover 3 is installed at the air outlet and can act as a physical barrier to effectively prevent users (especially children) from accidentally inserting their fingers into and touching the internal high-temperature (near the hot end) or low-temperature (near the cold end) components, avoiding the risk of burns or frostbite, and can also block larger foreign objects from entering the air duct. In addition, it can also guide or diffuse the output airflow to a certain extent and optimize the air delivery experience.

[0034] The working principle of this embodiment is as follows: After the fan 6 is started, air is drawn in from the air inlet at the bottom and the side air inlet of the main housing 1. After being filtered by the filter screen 10, the air enters the main air duct 100. When the airflow is accelerated and pushed to the top air outlet housing 2, it is diverted by the semiconductor cooling component. The semiconductor cooling plate 5 fixed by the mounting bracket 4 uses the Peltier effect to efficiently conduct the high / low temperature of its cold and hot ends to the airflow through the aluminum alloy frame, so that the separated air outlet duct 1 200 outputs cold air and the air outlet duct 2 300 outputs hot air. The user can control the airflow distribution ratio of the cold and hot air ducts by adjusting the adjustment plate 7 in the main air duct by adjusting the knob 11, or adjust the fan speed and semiconductor cooling intensity by adjusting the control panel 12 via the main board 9, and finally deliver airflow with a significant temperature difference.

[0035] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A fan duct structure, comprising a main housing (1), wherein an air outlet housing (2) is provided at the top of the main housing (1), characterized in that: The main housing (1) is provided with a main air duct (100), which is connected to the interior of the air outlet housing (2), and a semiconductor cooling component is installed at the connection point; the semiconductor cooling component divides the interior space of the air outlet housing (2) into two parts, namely air outlet duct one (200) and air outlet duct two (300), which are connected to the main air duct (100); a fan (6) is installed inside the main air duct (100).

2. The fan duct structure as described in claim 1, characterized in that: The semiconductor cooling assembly includes a mounting bracket (4) fixedly connected to the inside of the air outlet housing (2), and a semiconductor cooling plate (5) is fixedly installed at the center of the mounting bracket (4).

3. The fan duct structure as described in claim 1, characterized in that: The main housing (1) has an adjustment plate (7) rotatably mounted on the bottom side near the mounting bracket (4). The top side of the adjustment plate (7) is provided with a rotating shaft. The main housing (1) is provided with a mounting hole that cooperates with the rotating shaft. The two ends of the rotating shaft pass through the mounting hole respectively and are fixedly connected to the outside of the main housing (1) with an adjustment knob (11).

4. The fan duct structure as described in claim 1, characterized in that: A bracket is fixedly installed inside the main housing (1), and the fan (6) is installed on the top side of the bracket; a battery (8) and a motherboard (9) are installed on the bottom side of the bracket, and the fan (6) and the battery (8) are electrically connected to the motherboard (9).

5. The fan duct structure as described in claim 4, characterized in that: A control panel (12) is fixedly embedded on the outside of the main housing (1), and the control panel (12) is electrically connected to the motherboard (9).

6. The fan duct structure as described in claim 1, characterized in that: An air inlet is provided at the bottom of the main housing (1), and a filter screen (10) is fixedly installed inside the air inlet.

7. The fan duct structure as described in claim 1, characterized in that: The air outlet housing (2) is equipped with a hood (3) at the air outlet near the air outlet of air outlet duct 1 (200) and air outlet duct 2 (300).

Images