A small hot air generator

Abstract

The application discloses a small hot air generator, which comprises a containing cavity formed by an outer shell, a fan, an air heating member and a control module are arranged in the containing cavity, a fan outlet of the fan is opposite to the air heating member and an air outlet of the outer shell, the control module is electrically connected with the fan and the air heating member. The application controls the fan and the air heating member through the control module, the air heating member heats the surrounding air after being started, the fan blows the heated air through the air outlet of the outer shell, the temperature of the air output by the air outlet is controlled through the control module, so that the heated air can be used for human body warm air or for drying wet objects, and the small hot air generator has the advantages of simple structure, small size and convenience in carrying.

Description

Technical Field

[0001] This utility model relates to the field of air heating technology, and in particular to a small hot air generator. Background Technology

[0002] A hot air generator is a machine that heats air electrically and outputs the hot air through a fan. In low temperatures, it can bring warmth to the human body through hot air, or accelerate the evaporation of moisture in a moist object, thereby drying the moist object.

[0003] Current dryers typically use a single fan to blow heated air onto damp objects to dry them. While this method is effective at drying clothes, the small volume of hot air delivered by a single fan results in low drying efficiency. On the other hand, using a high-powered fan generates significant noise, negatively impacting the user experience. Utility Model Content

[0004] This utility model provides a small hot air generator to solve the technical problem that current hot air generators are large in size and inconvenient to carry.

[0005] To achieve the above objectives, this utility model provides a small hot air generator, including a receiving cavity formed by a housing. The housing has an air outlet that connects the receiving cavity to the outside. The receiving cavity contains a fan, an air heating element, and a control module. The fan's air outlet faces the air heating element and the air outlet. The control module is electrically connected to the fan and the air heating element.

[0006] Preferably, the small hot air generator further includes an air guide plate, which is installed at the fan outlet of the fan, and the air heating element is disposed between the fan and the air guide plate.

[0007] Preferably, the fan comprises a plurality of fans, which are arranged in an array within the receiving cavity.

[0008] Preferably, the small hot air generator further includes a cover plate, which is detachably installed at the air outlet for opening / closing the air outlet.

[0009] Preferably, the volume of the receiving cavity does not exceed 1000 cm2, and the thickness of the outer shell does not exceed 0.5 cm.

[0010] Preferably, the small hot air generator further includes a hook for hanging objects with hooks, the hook being mounted on the air guide plate and extending toward the air outlet.

[0011] Preferably, the small hot air generator further includes a hand grip, which is mounted on the housing and is positioned opposite to the air outlet.

[0012] Preferably, the control module includes a control circuit board and a display screen, the display screen being embedded in the housing, the control circuit board being connected to the display screen and located within the receiving cavity, and the control circuit board being electrically connected to the display screen, the fan, and the air heater.

[0013] Preferably, the small hot air generator further includes several buttons embedded in the housing, the buttons being electrically connected to the control module.

[0014] Preferably, any cross-section of the receiving cavity formed by the outer shell is a rounded rectangle.

[0015] The present invention has the following advantages: The small hot air generator of the present invention controls the fan and the air heating element through the control module. After the air heating element is started, it heats up to heat the surrounding air. The fan starts and blows the heated air out through the air outlet on the outer shell. The temperature of the air output from the air outlet is controlled by the control module, so that the heated air can be used for human body warming or for drying wet objects. The small hot air generator of the present invention has the advantages of simple structure, small size and easy portability.

[0016] In addition to the objectives, features, and advantages described above, the embodiments of this utility model have other objectives, features, and advantages. The embodiments of this utility model will now be described in further detail with reference to the accompanying drawings. Attached Figure Description

[0017] The accompanying drawings, which form part of this application, are used to provide a further understanding of the embodiments of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0018] Figure 1 This is a schematic diagram of the structure of the small hot air generator of this utility model;

[0019] Figure 2 This is a cross-sectional structural diagram of the small hot air generator of this utility model;

[0020] Figure 3 This is a schematic diagram of the internal structure of the small hot air generator of this utility model;

[0021] Figure 4 This is an exploded view of the internal structure of the small hot air generator of this utility model.

[0022] The reference numerals in the attached figures are as follows:

[0023] 10. Outer shell; 11. Receiving cavity; 12. Air outlet; 13. Cover plate; 20. Fan; 21. Fan air outlet; 30. Air heating element; 40. Control module; 41. Display screen; 50. Air guide plate; 60. Hanging fastener; 70. Hand grip; 80. Button. Detailed Implementation

[0024] The technical solutions of the present utility model embodiments are further described in detail below with reference to the accompanying drawings and specific examples. Furthermore, unless otherwise defined, the technical or scientific terms used in this application description should have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains. Terms indicating orientation, such as "upper," "lower," "left," "right," "center," "vertical," "horizontal," "inner," and "outer," used in this application description are only used to indicate relative directions or positional relationships, and do not imply that the device or component must have a specific orientation, or be constructed and operated in a specific orientation. When the absolute position of the described object changes, its relative positional relationship may also change accordingly, and therefore should not be construed as a limitation on this application. Terms such as "first," "second," "third," and similar terms used in this application description are only used for descriptive purposes to distinguish different components, and should not be construed as indicating or implying relative importance. Terms such as "a," "one," or "the," used in this application description, should not be construed as an absolute limitation on quantity, but should be understood as indicating the existence of at least one. The use of terms such as "including" or "comprising" in the description of this application means that the element or object preceding the word covers the element or object listed after the word and its equivalents, without excluding other elements or objects.

[0025] It should also be noted that, unless otherwise explicitly specified and limited, the terms such as “installation,” “connection,” and “linkage” used in the description of this application should be interpreted broadly. For example, a connection can be a fixed connection, a detachable connection, or an integral connection; 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 also refer to the internal connection of two components. Those skilled in the art can understand its specific meaning in this application according to the specific circumstances.

[0026] like Figures 1 to 4 As shown, the small hot air generator of this embodiment includes a receiving cavity 11 formed by the outer shell 10. The outer shell 10 is provided with an air outlet 12 that connects the receiving cavity 11 to the outside. The receiving cavity 11 is provided with a fan 20, an air heating element 30 and a control module 40. The fan outlet 21 of the fan 20 is directly opposite the air heating element 30 and the air outlet 12. The control module 40 is electrically connected to the fan 20 and the air heating element 30.

[0027] The control module can control the start / stop of the fan 20 and the air heater 30, and can also control the output air volume of the fan 20 and the power of the air heater 30, thereby controlling the temperature of the output hot air. According to actual needs, the small hot air generator can output hot air in two modes. The first mode outputs warm air suitable for the human body when the temperature is low, using the small hot air generator as a heater. The second mode outputs hot air at a higher temperature to make the moisture of humid objects evaporate quickly, in which case the small hot air generator is used as a dryer, thus broadening the application range of the small hot air generator.

[0028] The small hot air generator of this embodiment controls the fan 20 and the air heating element 30 through the control module 40. After the air heating element 30 is started, it heats up the surrounding air. The fan 20 starts and blows the heated air out through the air outlet 12 on the outer shell 10. The temperature of the air output from the air outlet 12 is controlled by the control module 40, so that the heated air can be used for human body warming or for drying wet objects. The small hot air generator of this embodiment has the advantages of simple structure, small size and easy portability.

[0029] In some embodiments, the volume of the housing 11 of the small hot air generator does not exceed 1000 cm2, and the thickness of the outer shell 10 does not exceed 0.5 cm.

[0030] Since the volume of the housing 11 of the small hot air generator is no more than 1000 cm³, it is more convenient for users to carry. In some scenarios, such as when traveling for business, the compact small hot air generator can be carried in a backpack. In outdoor scenarios, it can be used as a heater, and in indoor scenarios, it can quickly dry the user's clothes, greatly improving the user experience. At the same time, the thickness of the outer shell 10 of the small hot air generator is no more than 0.5 cm, making the overall size of the small hot air generator lighter, reducing the burden on the user when carrying it, and providing a better experience.

[0031] In some embodiments, such as Figure 3 and Figure 4 As shown, the small hot air generator also includes an air guide plate 50, which is installed at the fan outlet 21 of the fan 20, and the air heating element 30 is located between the fan 20 and the air guide plate 50.

[0032] Specifically, the air guide plate 50 in this embodiment is provided with multiple grilles for guiding air. The grilles can rotate to guide the direction of the air output by the fan 20 through the outlet 12, so that the hot air output by the small hot air generator can reach a larger area and achieve better results.

[0033] In some embodiments, such as Figure 3 and Figure 4 As shown, the fan 20 includes multiple fans, which are arranged in an array within the housing cavity 11.

[0034] Specifically, this embodiment uses two fans 20 as an example. Under the same air supply power, using two fans 20 instead of one fan 20 results in the power of each fan 20 being about half that of one fan 20. Therefore, when using two fans 20, the power of a single fan 20 is lower, resulting in less noise and a better user experience.

[0035] In some embodiments, such as Figure 1 As shown, the small hot air generator also includes a cover plate 13, which is detachably installed at the air outlet 12 for opening / closing the air outlet 12.

[0036] When the small hot air generator is not needed, the cover plate 13 is placed on the outer casing 10 to seal the receiving cavity 11, preventing foreign objects from entering the receiving cavity 11 and protecting the fan 20, air heating element 30 and control module 40 inside the receiving cavity 11. When the small hot air generator is in use, the cover plate 13 is simply opened to open the air outlet 12, and the fan 20 can output the air heated by the air heating element 30 through the air outlet.

[0037] In some embodiments, such as Figure 3 As shown, the small hot air generator also includes a hook fastener 60 for hanging objects with hooks. The hook fastener 60 is mounted on the air guide plate 50 and extends toward the air outlet 12.

[0038] Specifically, in this embodiment, the hook 60 is long and narrow, bent into a rectangular frame with one air outlet. In other embodiments, it can also be bent into an arc frame or other irregular frame. The hook 60 extends towards the air outlet 12 so that the hook 60 is closer to the air outlet, making it convenient for objects with hooks to be hooked. For example, when drying clothes, the hooks of the clothes hangers can be hung on the hook 60 to facilitate the drying of clothes.

[0039] In some embodiments, the small hot air generator also includes a hand grip 70, which is mounted on the housing 10 and is positioned opposite to the air outlet 12.

[0040] Specifically, the handheld handle 70 transforms the small hot air generator into a handheld device. When drying clothes, the handheld small hot air generator makes it easier to hang the clothes hangers on the hooks 60, and makes it easier to hang and dry clothes.

[0041] In some embodiments, such as Figure 3 As shown, the control module 40 includes a control circuit board and a display screen 41. The display screen 41 is embedded in the housing 10. The control circuit board is connected to the display screen 41 and is located in the receiving cavity 11. The control circuit board is electrically connected to the display screen 41, the fan 20 and the air heater 30.

[0042] Specifically, the control circuit board is equipped with a control chip. By inputting programmed control commands into the control chip, the control circuit board can control the display content of the display screen 41. The display content may include the operating status of the fan 20 and the air heater 30, as well as the wind speed and temperature of the output air from the small hot air generator. The control circuit board also controls the start / stop of the fan 20 and the output wind speed of the fan 20, and also controls the start / stop of the air heater 30 and the heating power of the air heater 30, so that the wind speed and temperature of the hot air output by the small hot air generator are adjustable, and the application range is wider.

[0043] In some embodiments, the system also includes a plurality of buttons 80 embedded in the housing 10, the buttons 80 being electrically connected to the control module 40.

[0044] Specifically, by inputting control signals to the control circuit board via buttons, the fan 20 and the air heating element 30 can be controlled, allowing the hot air speed and temperature output by the small hot air generator to be manually adjusted.

[0045] In some embodiments, any cross-section of the receiving cavity 11 formed by the housing 10 is a rounded rectangle. The small hot air generator is rectangular in shape, which makes it more convenient to carry and place. It can stand on a flat surface when in use, making it more convenient to use. The connection points of the various faces of the rectangle are arc-shaped to prevent sharp right-angled edges from causing injury to the user.

[0046] The small hot air generator provided in the above embodiments of this application has at least the following characteristics:

[0047] 1. By controlling the fan speed of the fan 20 and the temperature of the air heating element 30 through the control module 40, the small hot air generator can output hot air at different temperatures and speeds, giving the small hot air generator multiple functions as a heater and dryer, and making it more widely applicable.

[0048] 2. The small hot air generator is smaller and lighter, making it easier to use and carry, resulting in a better user experience;

[0049] 3. The output wind speed and temperature of the small hot air generator can be controlled and adjusted via button 80, and monitored in real time via display screen 41, making it more convenient to use.

[0050] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A small hot air generator, characterized in that, It includes a receiving cavity (11) formed by a housing (10), the housing (10) is provided with an air outlet (12) that connects the receiving cavity (11) to the outside, the receiving cavity (11) is provided with a fan (20), an air heater (30) and a control module (40), the fan outlet (21) of the fan (20) is directly opposite the air heater (30) and the air outlet (12), and the control module (40) is electrically connected to the fan (20) and the air heater (30).

2. The small hot air generator according to claim 1, characterized in that, It also includes an air guide plate (50), which is installed at the fan outlet (21) of the fan (20), and the air heating element (30) is located between the fan (20) and the air guide plate (50).

3. The small hot air generator according to claim 1, characterized in that, The fan (20) comprises a plurality of fans, which are arranged in an array within the receiving cavity (11).

4. The small hot air generator according to claim 1, characterized in that, It also includes a cover plate (13), which is detachably installed at the air outlet (12) for opening / closing the air outlet (12).

5. The small hot air generator according to claim 1, characterized in that, The volume of the cavity (11) does not exceed 1000 cm2, and the thickness of the outer shell (10) does not exceed 0.5 cm.

6. The small hot air generator according to claim 2, characterized in that, It also includes a hook fastener (60) for hanging objects with hooks, the hook fastener (60) being mounted on the air guide plate (50) and extending toward the air outlet (12).

7. The small hot air generator according to claim 1, characterized in that, It also includes a hand grip (70), which is mounted on the housing (10) and is positioned opposite to the air outlet (12).

8. The small hot air generator according to claim 1, characterized in that, The control module (40) includes a control circuit board and a display screen (41). The display screen (41) is embedded in the housing (10). The control circuit board is connected to the display screen (41) and located in the receiving cavity (11). The control circuit board is electrically connected to the display screen (41), the fan (20), and the air heater (30).

9. The small hot air generator according to claim 1, characterized in that, It also includes a number of buttons (80) embedded in the housing (10), the buttons (80) being electrically connected to the control module (40).

10. The small hot air generator according to claim 1, characterized in that, The cavity (11) formed by the outer shell (10) has a rounded rectangle in any cross section.

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