Annular blowing warm air blower

Abstract

The annular air blowing fan heater comprises a shell, an annular air outlet structure formed on the shell and air blowing assemblies installed in the shell, each air blowing assembly comprises a high-speed fan and a heating element, a plurality of arc-shaped air channels are formed in the shell, and one air blowing assembly is installed in each arc-shaped air channel. All the arc-shaped air ducts are connected together to form an annular air duct, and the annular air outlet structure is communicated with the annular air duct. The annular air outlet structure is formed by the multiple air blowing assemblies, the air blowing area is increased, it can be guaranteed that the large annular air blowing face has the high air blowing speed, the body drying effect is good, and air outlet is more uniform.

Description

Technical Field

[0001] This invention relates to a warm air blower primarily used for ventilation. Background Technology

[0002] Existing bathroom dryers are mainly used in bathrooms to dry the body with hot air after showering, reducing the need for towels. For example, Chinese utility model patent No. ZL202321394726.9, published on December 26, 2023, discloses a wall-mounted body dryer, including a casing that can be installed on the wall and a drying component. The casing has an air inlet on one side, an air duct and a mounting cavity inside, and an air outlet on the outside. The air inlet sequentially connects to the mounting cavity, the air duct, and the air outlet. The drying component includes a motor, a fan, and a heating wire. The motor is fixedly installed inside the mounting cavity, the fan is fixedly installed at the motor output end, and the heating wire is fixedly installed inside the casing, located on the side of the motor away from the fan. The motor drives the fan to draw air from the air inlet, which is then heated by the heating wire and blown out through the air duct and air outlet to dry the skin. In the above solution, the air outlet is long and narrow, the airflow is relatively weak, and it takes a long time to dry the body, making it inconvenient to use. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a ring-shaped blower heater with a large blowing area and uniform air output.

[0004] According to the present invention, a ring-shaped blower heater 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 high-speed fan and a heating element. The housing is provided with multiple arc-shaped air ducts, and a set of blower assemblies is installed in each arc-shaped air duct. All the arc-shaped air ducts are connected together to form an annular air duct. The annular air outlet structure communicates with the annular air duct.

[0005] The ring-shaped blower heater provided according to the present invention also has the following auxiliary technical features:

[0006] Further, the arc-shaped air duct has 2-6 sections, and the blowing assembly has 2-6 groups.

[0007] Further, each segment of the arc-shaped air duct is provided with a fan compartment for installing the blower assembly. The fan compartment is provided with an air inlet and an air outlet. The air inlet communicates with the outside of the housing, and the air outlet communicates with the arc-shaped air duct.

[0008] Furthermore, the annular air outlet structure is composed of multiple long strip-shaped air outlet slits, and multiple air guide vanes are provided in the annular air duct.

[0009] Furthermore, each of the aforementioned air guide vanes corresponds to a section of the aforementioned air outlet slit.

[0010] Further, the bottom plate of the arc-shaped air duct is raised inward from the air outlet to the top of the fan compartment of the next section of the arc-shaped air duct.

[0011] Further, the housing includes an upper air duct shell and a lower air duct shell, which are fastened together, and the blower assembly and the annular air duct are disposed in the cavity formed by the upper air duct shell and the lower air duct shell.

[0012] Furthermore, the heating element is installed at the air outlet of the fan compartment.

[0013] Further, a temperature sensing component mounting platform is provided on the inner wall of the fan hopper, and a temperature sensing component terminal is provided on the outer wall of the fan hopper. The terminal passes through the fan hopper and connects to the temperature sensing component on the mounting platform.

[0014] The heating element further includes a circular outer shell and a heating element installed in the circular outer shell, wherein the heating element has a plurality of ventilation slots formed thereon.

[0015] Compared with the prior art, the ring-shaped blower heater provided by the present invention has the following advantages: The present invention uses multiple blower components to form a ring-shaped air outlet structure, which increases the blowing area and ensures that the large ring blowing surface has a large blowing speed, resulting in good drying effect and more uniform air outlet. Attached Figure Description

[0016] Figure 1 This is the front view of the present invention.

[0017] Figure 2 This is a top view of the present invention.

[0018] Figure 3 This is a cross-sectional view from a first perspective of the present invention.

[0019] Figure 4 This is a cross-sectional view from a second perspective of the present invention.

[0020] Figure 5 This is a cross-sectional view from a third perspective of the present invention.

[0021] Figure 6 This is a cross-sectional view from the fourth perspective of the present invention.

[0022] Figure 7 This is a three-dimensional exploded view of the annular air duct in this invention.

[0023] Figure 8 This is a cross-sectional view of the annular air duct in this invention.

[0024] Figure 9 This is a perspective view of the upper shell of the air duct in this invention.

[0025] Figure 10 This is a perspective view of the lower shell of the air duct in this invention.

[0026] Figure 11 This is a front view of the lower shell of the air duct in this invention.

[0027] Figure 12 This is a front view of the blower assembly in this invention.

[0028] Figure 13 This is a perspective view of the blower assembly in this invention.

[0029] Figure 14 This is a cross-sectional view of the blower assembly in this invention. Detailed Implementation

[0030] To clearly illustrate the solutions in this invention, preferred embodiments are given below in conjunction with the accompanying drawings. The following description is merely exemplary and not intended to limit the application or use of this disclosure. It should be understood that throughout the drawings, corresponding reference numerals denote the same or corresponding parts and features.

[0031] like Figures 1 to 14 As shown, this invention provides a ring-shaped hair dryer / heater, comprising a housing 1, a ring-shaped air outlet structure 2 formed on the housing 1, and a blower assembly 3 installed in the housing 1. The blower assembly 3 includes a high-speed fan 31 and a heating element 32. The housing 1 has multiple arc-shaped air ducts 4, each of which houses a set of blower assemblies 3. All the arc-shaped air ducts 4 are connected together to form a ring-shaped air duct. The ring-shaped air outlet structure 2 communicates with the ring-shaped air duct. The high-speed fan 31 in this invention is a small high-speed fan, similar to the fan structure used in hair dryers, possessing high-speed blowing capabilities. The high-speed fan 31 has a rotational speed of up to tens of thousands of revolutions per minute, is small in size, low in noise, and has a high air velocity. This invention uses multiple independent blower assemblies 3, which can increase the air volume and meet the needs of large-area ring-shaped blowing. The large-area ring-shaped blowing structure allows for faster drying of body moisture, improving the drying effect and overcoming the slow speed problem of traditional body dryers. At the same time, the invention has lower overall noise, reducing noise pollution.

[0032] See Figures 1 to 14In the above embodiments of the present invention, the arc-shaped air duct 4 is further comprising 2-6 segments, and the blower assembly 3 is comprising 2-6 groups. In this embodiment, the arc-shaped air duct 4 is three segments, and the blower assembly 3 is three groups. Each segment of the arc-shaped air duct 4 is equipped with one group of blower assemblies 3, providing a high-speed airflow independently to each segment of the arc-shaped air duct 4. This improves airflow over a large area while maintaining a high-speed airflow, thus achieving the goal of quickly drying body moisture.

[0033] The annular air outlet structure in this invention can be circular, quadrilateral, or other polygonal structures. Each side is equipped with an independent blower component and air duct structure, employing a multi-segment combined structure to increase the blowing area. Alternatively, this invention can use multiple independent air ducts arranged side-by-side or connected to increase the blowing area. Each independent air duct is equipped with a set of blower components, allowing different air ducts to be activated as needed to meet different functions such as drying hair or body.

[0034] See Figures 1 to 14 In the above embodiments of the present invention, each segment of the arc-shaped air duct 4 is further provided with a fan compartment 33 for installing the blower assembly 3. The fan compartment 33 is provided with an air inlet 331 and an air outlet 332. The air inlet 331 communicates with the outside of the housing 1, and the air outlet 332 communicates with the arc-shaped air duct 4. The fan compartment 33 in the present invention is composed of a fan cover plate 333 and the inner wall of the arc-shaped air duct 4. The fan cover plate 333 is fastened to the arc-shaped air duct 4. The fan cover plate 333 facilitates the installation of the blower assembly 3. The air outlet 332 is aligned with the arc-shaped air duct 4, blowing a high-speed airflow into the arc-shaped air duct, and the high-speed airflow is then blown out through the annular air outlet structure. The above structure facilitates the entry of airflow from outside the annular air duct into the annular air duct and its high-speed flow within the annular air duct.

[0035] In this invention, the high-speed air blown by the high-speed fan unit 3 blows along the tangential direction of the high-pressure mixing chamber. The three high-speed fans 31 work in a relay to continuously accelerate the airflow in the annular duct, increasing the air pressure. This ensures that there is no negative pressure zone in the entire high-pressure mixing chamber, and the high-speed air blown from the high-pressure outlet is more uniform.

[0036] See Figures 1 to 14In the above embodiments of the present invention, the annular air outlet structure 2 is further comprising multiple elongated air outlet slits, and multiple guide vanes 5 are disposed within the annular air duct. The annular air outlet structure 2 of the present invention is generally circular, composed of segments of air outlet slits, and can provide a large area of ​​high-speed airflow. The guide vanes 5 are generally curved tongue structures that extend into the annular air duct, guiding the high-speed airflow in the annular air duct to the annular air outlet structure. Due to the presence of the guide vanes 5, the airflow of the annular air outlet structure 2 is more uniform, improving the airflow effect.

[0037] See Figures 1 to 14 In the above embodiments of the present invention, each of the air guide vanes 5 corresponds to a segment of the air outlet slit. The air guide vanes 5 can increase the air volume of each segment of the air outlet slit, making the air volume of each segment of the air outlet slit more uniform and improving the air blowing effect.

[0038] See Figures 1 to 14 In the above embodiments of the present invention, the housing 1 further includes an upper air duct housing 11 and a lower air duct housing 12, which are fastened together. The blower assembly 3 and the annular air duct are disposed in the cavity formed by the upper air duct housing 11 and the lower air duct housing 12. The middle part of the upper air duct housing 11 protrudes upward to form a convex ring structure, and the annular air outlet structure is formed on the convex ring structure.

[0039] See Figures 1 to 14 In the above embodiments of the present invention, the heating element 32 is further included at the air outlet 332 of the fan housing 33. The heating element 32 includes a circular outer shell 321 and a heating element 322 installed within the circular outer shell 321. Multiple ventilation slots are formed on the heating element 322. The overall shape of the heating element 32 is the same as the air outlet 332, effectively sealing the air outlet 332. When the high-speed airflow blown by the high-speed fan 31 passes through the ventilation slots, it is heated by the heating element 322. This structure provides better heating performance. The heating element 322 is a PTC heating element.

[0040] See Figures 1 to 14In the above embodiments of the present invention, a temperature-sensing component mounting platform 334 is further provided on the inner wall of the fan housing 33, and a temperature-sensing component terminal 335 is provided on the outer wall of the fan housing 33. The terminal 335 passes through the fan housing 33 and connects 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 32 to improve the detection effect. Since the annular air duct is a closed structure, gaps need to be reduced to improve the blowing effect. The terminal 334 of the present invention directly passes through the fan cover plate 333 to realize the connection of internal components and the connection of external wiring, thereby improving the sealing performance of the annular air duct.

[0041] In summary, the above descriptions are merely embodiments of the present invention and are used only to illustrate the principles of the invention, not to limit the scope of protection of the invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A ring-shaped blowing warmer, comprising a housing, a ring-shaped air outlet structure formed on the housing, and a blowing assembly installed in the housing, characterized in that: The blowing assembly comprises a high-speed fan and a heating element, and the shell is provided with a plurality of arc-shaped air ducts, each of which is provided with a group of blowing assemblies, all the arc-shaped air ducts are connected together to form a ring-shaped air duct, and the ring-shaped air outlet structure communicates with the ring-shaped air duct.

2. A ring-shaped blast air heater as claimed in claim 1, characterized in that: The arc-shaped air ducts are 2-6 in number, and the blowing assemblies are 2-6 in number.

3. A ring-shaped blast air heater as claimed in claim 1, characterized in that: Each of the arc-shaped air ducts is provided with a fan compartment for mounting the blowing assembly, and the fan compartment is provided with an air inlet and an air outlet, the air inlet communicates with the outside of the shell, and the air outlet communicates with the arc-shaped air duct.

4. A ring-shaped blast air heater as claimed in claim 1, characterized in that: The ring-shaped air outlet structure is composed of a plurality of long-strip-shaped air outlet slots, and the ring-shaped air duct is provided with a plurality of air guide fins.

5. A ring-shaped blast air heater as claimed in claim 4, characterized in that: Each of the air guide fins corresponds to one of the air outlet slots.

6. A ring-shaped blast air heater as claimed in claim 3, characterized in that: The bottom plate of the arc-shaped air duct is raised inward from the air outlet to the top of the fan compartment of the next arc-shaped air duct.

7. A ring-shaped blast air heater as claimed in claim 1, characterized in that: The shell comprises an upper air duct shell and a lower air duct shell, the upper air duct shell and the lower air duct shell are fastened together, and the blowing assembly and the ring-shaped air duct are arranged in the inner cavity formed by the upper air duct shell and the lower air duct shell.

8. A ring-shaped blast air heater as claimed in claim 3, characterized in that: The heating element is mounted at the air outlet of the fan compartment.

9. A ring-shaped blast air heater as claimed in claim 3, characterized in that: A temperature sensing component mounting platform is arranged on the inner wall of the fan compartment, and a temperature sensing component terminal stud is arranged on the outer wall of the fan compartment, the terminal stud penetrates through the fan compartment and is connected with the temperature sensing component on the mounting platform.

10. An annular blast air heater as claimed in claim 1, wherein: The heating element comprises a circular ring shell and a heating element mounted in the circular ring shell, and a plurality of ventilation grooves are formed on the heating element.

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