High-speed blowing fan assembly and warm air blower

Abstract

The utility model discloses a high-speed blowing fan assembly and a warm air blower, which comprise a fan bin, a high-speed fan installed in the fan bin, a heating element and a power amplifier board, the fan bin is provided with an air inlet and an air outlet, the high-speed blowing fan assembly is characterized in that the power amplifier board is installed at the air inlet, the heating element is installed at the air outlet, and the power amplifier board is installed at the air outlet. The high-speed fan is installed in the middle of the fan bin. The high-speed fan is adopted, high-speed air can be generated, the air blowing speed is high, and the area is large. The power board is arranged at the air inlet, the heat dissipation effect of the power board is better, and the service life of the power board is prolonged.

Description

Technical Field

[0001] The utility model relates to a fan assembly capable of generating high-speed wind, and also relates to a heater with high-speed blowing. Background Art

[0002] The existing heaters for bathrooms can dry the body moisture by hot air after bathing, reducing the use of towels. For example, the Chinese utility model patent with the patent number ZL202321394726.9 and the publication date of December 26, 2023 discloses a wall-mounted body dryer, which includes a casing that can be installed on the wall and a drying component. An air inlet is provided on one side of the casing, a diversion air duct and an installation cavity are provided inside the casing, and an air outlet channel is also provided outside the casing. The air inlet sequentially penetrates through the installation cavity, the diversion air duct and the air outlet channel; the drying component includes a motor, a fan and a heating wire. The motor is fixedly installed inside the installation cavity, the fan is fixedly installed at the output end of the motor, the heating wire is fixedly installed inside the casing, and the heating wire is located on the side of the motor away from the fan. The motor drives the fan to draw air flow from the air inlet, and after being heated by the heating wire, it passes through the diversion air duct and is blown out through the air outlet channel to perform the operation of drying the human skin. In the above solution, the motor and the fan adopt conventional low-speed motors, resulting in a low wind speed and high noise. Summary of the Utility Model

[0003] The technical problem to be solved by the utility model is to overcome the above deficiencies of the prior art and provide a fan assembly with a high-speed fan and a long service life for high-speed blowing. At the same time, it relates to a heater with a large blowing area and high-speed wind.

[0004] A fan assembly for high-speed blowing provided by the utility model includes a fan housing, a high-speed fan installed in the fan housing, a heating element and a power board. The fan housing is provided with an air inlet and an air outlet. The power board is installed at the air inlet, the heating element is installed at the air outlet, and the high-speed fan is installed in the middle of the fan housing.

[0005] A fan assembly for high-speed blowing provided by the utility model also has the following additional technical features:

[0006] Further, a receiving cavity is formed at the air inlet of the fan housing, and the power board is installed in the receiving cavity.

[0007] Further, an air inlet flow channel is formed at the air inlet of the fan housing, and the power board is installed in the air inlet flow channel.

[0008] Further comprising, the heating element includes an annular housing and a heating element installed in the annular housing, and a plurality of ventilation grooves are formed on the heating element.

[0009] Further comprising, a temperature sensing component mounting platform is provided on the inner wall of the blower housing, a temperature sensing component terminal is provided on the outer wall of the blower housing, and the terminal passes through the blower housing and is connected to the temperature sensing component on the mounting platform.

[0010] According to a hot air blower provided by the present invention, it includes a housing, an annular air outlet structure formed on the housing, and a blower assembly installed in the housing. The blower assembly includes a blower housing, a high-speed blower installed in the blower housing, a heating element, and a power board. The blower housing is provided with an air inlet and an air outlet. The power board is installed at the air inlet, the heating element is installed at the air outlet, and the high-speed blower is installed in the middle of the blower housing.

[0011] The hot air blower provided by the present invention further has the following additional technical features:

[0012] Further comprising, it further includes a high-pressure mixing chamber communicated with the annular air outlet structure, and the high-pressure mixing chamber is communicated with a plurality of blower assemblies that work independently of each other.

[0013] Further comprising, the blower housing is composed of a blower cover plate and the inner wall of the high-pressure mixing chamber. The air inlet of the blower housing is communicated with the outside of the housing, and the air outlet of the blower housing is communicated with the high-pressure mixing chamber.

[0014] Further comprising, the annular air outlet structure is composed of a plurality of long strip-shaped air outlet slits, and a plurality of air guiding vanes are arranged in the high-pressure mixing chamber, and each air guiding vane corresponds to one section of the air outlet slit.

[0015] Further comprising, it further includes a fresh air outlet structure and a fresh air blowing assembly. The fresh air blowing assembly includes a fresh air blower and a fresh air heating element. A fresh air channel is provided in the housing, the fresh air channel is communicated with the fresh air outlet structure, and the fresh air heating element is installed in the fresh air channel.

[0016] The blower assembly with high-speed blowing provided by the present invention has the following advantages compared with the prior art: The present invention adopts a high-speed blower, which can generate high-speed air, with a fast blowing speed and a large area. The power board is arranged at the air inlet, and the heat dissipation effect of the power board is better, improving the service life of the power board.

[0017] Compared with the prior art, the air heater provided by the present utility model has the following advantages: The air heater in the present utility model is equipped with a high-speed fan, which can blow out high-speed air, with a fast blowing speed and a large area, improving the body drying speed. At the same time, due to good heat dissipation performance, the service life is extended. Description of the Drawings

[0018] Figure 1 This is the front view of the present utility model.

[0019] Figure 2 This is the top view of the present utility model.

[0020] Figure 3 This is the cross-sectional view of the present utility model from the first perspective.

[0021] Figure 4 This is the cross-sectional view of the present utility model from the second perspective.

[0022] Figure 5 This is the cross-sectional view of the present utility model from the third perspective.

[0023] Figure 6 This is the cross-sectional view of the present utility model from the fourth perspective.

[0024] Figure 7 This is the three-dimensional exploded view of the annular air duct in the present utility model.

[0025] Figure 8 This is the cross-sectional view of the annular air duct in the present utility model.

[0026] Figure 9 This is the three-dimensional view of the upper shell of the air duct in the present utility model.

[0027] Figure 10 This is the three-dimensional view of the lower shell of the air duct in the present utility model.

[0028] Figure 11 This is the front view of the lower shell of the air duct in the present utility model.

[0029] Figure 12 This is the front view of the blowing assembly in the present utility model.

[0030] Figure 13 This is the three-dimensional view of the blowing assembly in the present utility model.

[0031] Figure 14 This is the cross-sectional view of the blowing assembly in the present utility model.

[0032] Figure 15 This is the cross-sectional view of the fresh air blowing assembly in the present utility model.

[0033] Figure 16 This is the front view of the fresh air heating element in the present utility model. Detailed Embodiment

[0034] To clearly illustrate the solution in the present utility model, the following preferred embodiments are given and described in detail with reference to the accompanying drawings. The following description is essentially merely exemplary and is not intended to limit the application or use of the present disclosure. It should be understood that in all the drawings, corresponding reference numerals denote the same or corresponding components and features.

[0035] As Figures 1 to 16 shown, a blower assembly for high-speed blowing provided by the present utility model includes a blower housing 33, a high-speed blower 31 installed in the blower housing 33, a heating element 32, and a power board 34. The blower housing 33 is provided with an air inlet 331 and an air outlet 332. The power board 34 is installed at the air inlet 331, the heating element 32 is installed at the air outlet 332, and the high-speed blower 31 is installed in the middle of the blower housing 33. The high-speed blower 31 in the present utility model is a small high-speed blower. Such high-speed blowers can refer to the blower structure used in a hair dryer. It has the ability to blow high-speed air. The high-speed blower 31 has a rotational speed of up to more than a hundred thousand revolutions per minute, is small in size, low in noise, and high in wind speed. The high-speed blower 31 integrates the motor and the fan into one structure, can generate high-speed air, and has low noise. It is different from the structure of a low-speed motor and a fan adopted in the prior art. At the same time, the blowing assembly of the present utility model adopts the arrangement of the power board 34, the high-speed blower 31, and the heating element 32, which is different from the conventional arrangement. This arrangement is more conducive to the heat dissipation of the power board 34 and improves the service life of the power board 34.

[0036] Refer to Figures 12 to 14 , in the above-mentioned embodiment given by the present utility model, it further includes that a receiving cavity is formed at the air inlet 331 of the blower housing 33, and the power board 34 is installed in the receiving cavity. The receiving cavity is conducive to the installation of the power board 34 and is also conducive to heat dissipation.

[0037] Refer to Figures 12 to 14 , in the above-mentioned embodiment given by the present utility model, it further includes that an air inlet flow channel is formed at the air inlet 331 of the blower housing 33, and the power board 34 is installed in the air inlet flow channel. The power board 34 being in the air inlet flow channel is conducive to heat dissipation.

[0038] Refer to Figures 12 to 14, in the above - mentioned embodiment provided by the present utility model, it further includes that the heating element 32 includes a circular - ring housing 321 and a heating element 322 installed in the circular - ring housing 321. A plurality of ventilation grooves are formed on the heating element 322. The overall shape of the heating element 32 is the same as that of the air outlet 332, and it can exactly block the air outlet 332. When the high - speed air flow blown out by the high - speed blower 31 passes through the ventilation grooves, it is heated by the heating element 322. With the above - mentioned structure, the heating effect is better. The heating element 322 is a PTC heating element.

[0039] See Figures 12 to 14 , in the above - mentioned embodiment provided by the present utility model, it further includes that a temperature - sensing component mounting platform 334 is arranged on the inner wall of the blower housing 33, and a temperature - sensing component terminal 335 is arranged on the outer wall of the blower housing 33. The terminal 335 passes through the blower housing 33 and is connected to the temperature - sensing component on the mounting platform 334. The temperature - sensing component on the mounting platform 334 includes a fuse and a thermostat. The mounting platform 334 is located on the air - inlet side of the heating element 34, improving the detection effect. The terminal 335 of the present utility model directly passes through the blower housing 33 to realize the connection of internal devices, which is an external wiring connection method, improving the sealing performance.

[0040] See Figures 1 to 16 , in an embodiment of a warm - air blower provided by the present utility model, it includes a housing 1, an annular air - outlet structure 2 formed on the housing 1, and a blower assembly 3 installed in the housing. The blower assembly 3 is the blower assembly described in the above - mentioned embodiment.

[0041] See Figures 1 to 16 , in the above - mentioned embodiment provided by the present utility model, it further includes that a high - pressure mixing chamber 4 communicated with the annular air - outlet structure 2 is also included. The high - pressure mixing chamber 4 is communicated with multiple groups of blower assemblies 3 that work independently of each other. In traditional warm - air blowers, there is generally a single air - blowing source. During the air - blowing process in a long air duct, the high - pressure air attenuates greatly, resulting in problems such as slow air - blowing speed and uneven air outlet. Therefore, the air - outlet surface of traditional warm - air blowers is generally small and difficult to make large. In order to overcome the problems existing in large - area air outlet, the present utility model is provided with multiple groups of blower assemblies 3 that work independently of each other, and each group of blower assemblies 3 can provide high - speed air. The present utility model adopts multiple air - blowing sources, which can increase the air - blowing volume, enlarge the air - blowing area, and can provide a large - area high - speed air. When used as a body - drying machine, it can dry the body moisture faster and improve the body - drying effect.

[0042] See Figures 1 to 16, in the above embodiments provided by the present utility model, it further includes that the fan chamber 33 in the present utility model is composed of a fan cover plate 333 and the inner wall of the high-pressure mixing chamber 4, and the fan cover plate 333 is buckled on the high-pressure mixing chamber 4. The fan cover plate 333 facilitates the installation of the high-speed fan 31. The air outlet 332 is aligned with the high-pressure mixing chamber 4 to blow high-speed air flow into the high-pressure mixing chamber 4, and the high-speed air flow is then blown out through the annular air outlet structure 2. The above structure is conducive to the external air flow entering the high-pressure mixing chamber 4 and flowing at high speed in the high-pressure mixing chamber 4.

[0043] See Figures 1 to 16 , in the above embodiments provided by the present utility model, it further includes that the high-pressure mixing chamber 4 is of an annular pipe-shaped structure, and the fan assembly 3 is installed in the high-pressure mixing chamber 4. In this embodiment, the high-pressure mixing chamber 4 is composed of three arc-shaped mixing chambers connected to each other, and the fan assembly 3 is in three groups, with one group of fan assemblies 3 installed in each arc-shaped mixing chamber. The fan assemblies 3 are evenly distributed in the high-pressure mixing chamber 4, making the air supply of the fan assemblies 3 more uniform. The high-pressure mixing chamber 4 is annular, quadrilateral or multi-segmented broken line-shaped. This embodiment is of an annular structure, which can provide a larger blowing area and high-speed air flow at the same time. The high-pressure mixing chamber 4 can also be a polygonal structure such as a square or a regular pentagon, or a multi-segmented broken line structure. In the polygonal structure, one group of the fan assemblies 3 is arranged on each side, that is, each side is supplied with air by one group of the fan assemblies 3. In the multi-segmented broken line structure, one group of the fan assemblies 3 is arranged on each segment of the broken line, and each segment of the broken line is supplied with air by one group of the fan assemblies 3. Of course, it can also be that two sides or two segments of the broken line are supplied with air by one group of the fan assemblies 3.

[0044] See Figures 1 to 16 , in the above embodiments provided by the present utility model, it further includes that the annular air outlet structure 2 is arranged on the top of the high-pressure mixing chamber 4. The annular air outlet structure 2 is composed of multiple long strip-shaped air outlet slits, and multiple air guiding vanes 5 are arranged in the high-pressure mixing chamber 4, and each air guiding vane 5 corresponds to one segment of the air outlet slit. The annular air outlet structure 2 of the present utility model is circular as a whole and is composed of one segment of air outlet slit after another, which can provide a large area of high-speed air flow. The air guiding vane 5 is of a bent tongue-shaped structure as a whole, and it extends into the high-pressure mixing chamber 4 to guide the high-speed air flow in the high-pressure mixing chamber 4 into the annular air outlet structure 2. Due to the arrangement of the air guiding vanes 5, the annular air outlet structure 2 blows more evenly, improving the blowing effect.

[0045] See Figures 1 to 16, in the above - mentioned embodiment provided by the present utility model, it further includes that the housing 1 includes an air duct upper shell 11 and the air duct lower shell 12, the air duct upper shell 11 and the air duct lower shell 12 are buckled together, and their inner cavities form the high - pressure mixing chamber 4. The middle part of the air duct upper shell 11 bulges upward to form a convex ring structure, and the annular air outlet structure 2 is formed on the convex ring structure.

[0046] See Figures 1 to 16 , in the above - mentioned embodiment provided by the present utility model, it further includes that there is also a fresh - air outlet 6 and a fresh - air blowing assembly 7, and the fresh - air blowing assembly 7 communicates with the fresh - air outlet 6. In the present utility model, two sets of independent dry - body systems and fresh - air systems are provided. The fresh - air system can be used for fresh - air replacement and air heating, having the functions of a traditional bath heater. The dry - body system can be used for drying the body moisture, having the dry - body function. The two blowing assemblies are independently arranged and can work independently or simultaneously according to needs. The present utility model has both the functions of a bath heater and a dry - body function, making it more convenient to use and having richer functions. It not only has the functions of bathroom heating and air replacement, but also saves the use of towels and is more hygienic and clean.

[0047] See Figures 1 to 16 , in the above - mentioned embodiment provided by the present utility model, it further includes that the annular air outlet structure 2 and the fresh - air outlet 6 are arranged in an inner - outer ring manner. In this embodiment, the annular air outlet structure 2 is located in the outer ring and is a multi - segment fine - slit structure. The fresh - air outlet 6 is located in the inner ring and is formed by arranging a plurality of round holes. The above structure can effectively increase the air - outlet area and improve the air - blowing volume. The fresh - air outlet 6 can be used as a make - up air hole.

[0048] See Figures 1 to 16 , in the above - mentioned embodiment provided by the present utility model, it further includes that the fresh - air blowing assembly 7 includes a fresh - air fan 71 and a fresh - air heating element 72. A fresh - air channel 61 is provided in the housing 1, the fresh - air channel 61 communicates with the fresh - air outlet 6, and the fresh - air heating element 72 is installed in the fresh - air channel 61. The fresh - air fan 71 is arranged at the central position and includes a fresh - air motor and a fan blade driven by the fresh - air motor. The high - speed air generated by the fan blade enters the fresh - air channel 61 after being heated by the fresh - air heating element 72. If heating is not required, the fresh - air heating element 72 does not work and only fresh - air ventilation is carried out. The fresh - air channel 61 surrounds the fresh - air fan 71, and the fresh - air heating element 72 is installed in the fresh - air channel 61 and surrounds the fresh - air fan 71. The above structure is conducive to heating the high - speed air generated by the fresh - air fan 71 and at the same time increasing the air - outlet area.

[0049] See Figures 1 to 16, in the above embodiments provided by the present utility model, it further includes that the fresh air heating element 72 comprises a heating tube 721 and a plurality of fins arranged on the heating tube 721. The fins include large fins 722 and small fins 723, and the large fins 722 and the small fins 723 are arranged at intervals. The fresh air heating element 72 in the present utility model is circular, so that it can surround the fresh air fan 71. The height of the small fins 723 is less than the height of the large fins 722. The fins can increase the heating area, but if the fin density is too large, it is not conducive to air circulation. The present utility model is provided with a structure combining the large fins 722 and the small fins 723, which not only increases the heating area, but also reduces the resistance of the fins to the air and is conducive to air circulation.

[0050] In summary, the above content is only an embodiment of the present utility model, which is only used to illustrate the principle of the present utility model and is not used to limit the protection scope of the present utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A blower assembly for high-speed air blowing, comprising a blower housing, a high-speed blower installed in the blower housing, a heating element and a power board, wherein the blower housing is provided with an air inlet and an air outlet, and is characterized in that: The power board is installed at the air inlet, the heating element is installed at the air outlet, and the high-speed blower is installed in the middle of the blower chamber.

2. The blower assembly for high-speed blowing according to claim 1, wherein: A receiving cavity is formed at the air inlet of the blower chamber, and the power board is installed in the receiving cavity.

3. The blower assembly for high-speed air blowing according to claim 1, characterized in that: An air inlet flow channel is formed at the air inlet of the blower chamber, and the power board is installed in the air inlet flow channel.

4. The blower assembly for high-speed blowing as described in claim 1, characterized in that: The heating element includes a circular ring housing and a heating element installed in the circular ring housing, and a plurality of ventilation slots are formed on the heating element.

5. The blower assembly for high-speed blowing according to claim 1, characterized in that: A temperature sensing component installation platform is arranged on the inner wall of the blower chamber, and a temperature sensing component connection terminal is arranged on the outer wall of the blower chamber. The connection terminal passes through the blower chamber and is connected to the temperature sensing component on the installation platform.

6. A warm air blower, comprising a housing, an annular air outlet structure formed on the housing, and a blower assembly installed in the housing, characterized in that: The blower assembly is the high-speed blowing blower assembly according to any one of claims 1 to 5 above.

7. The heater according to claim 6, characterized in that: It further includes a high-pressure mixing chamber communicated with the annular air outlet structure, and the high-pressure mixing chamber is communicated with multiple groups of blower assemblies working independently of each other.

8. The air heater according to claim 7, characterized in that: The blower chamber is composed of a blower cover plate and the inner wall of the high-pressure mixing chamber. The air inlet of the blower chamber is communicated with the outside of the housing, and the air outlet of the blower chamber is communicated with the high-pressure mixing chamber.

9. The heater according to claim 7, characterized in that: The annular air outlet structure is composed of multiple long strip-shaped air outlet slits, and multiple air guiding vanes are arranged in the high-pressure mixing chamber, and each air guiding vane corresponds to one section of the air outlet slit.

10. A heater as claimed in claim 7, wherein: It further includes a fresh air outlet structure and a fresh air blowing assembly. The fresh air blowing assembly includes a fresh air blower and a fresh air heating element. A fresh air channel is arranged in the housing, and the fresh air channel is communicated with the fresh air outlet structure. The fresh air heating element is installed in the fresh air channel.

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