Efficient fan heater

Abstract

The utility model discloses an efficient warm air blower which is characterized by comprising a box body, a box cover and a plurality of air inlet wind wheel assemblies arranged in the box body. The box cover covers the box body, and a first air outlet and an air blowing volute structure used for forming an air blowing channel are formed in the box body and / or the box cover; the air inlet wind wheel assembly comprises a motor arranged in the volute and air inlet wind wheels connected with the motor, at least one air inlet wind wheel is arranged towards the box body so that one end of the box body can be opened to form a first air inlet, and the other air inlet wind wheel is arranged towards the box cover so that one end of the box cover can be opened to form a second air inlet. The utility model has the advantages of high ventilation and air intake efficiency, large air speed and air volume, low noise and convenience and flexibility in installation.

Description

Technical Field

[0001] The utility model relates to the technical field of air heaters, in particular to a high-efficiency air heater. Background Art

[0002] Air heaters are widely used in building fresh air systems, especially in winter, and can be used as independent heating. Existing air heaters usually heat the air and then blow it out through fan blades.

[0003] In the Chinese patent literature, the authorization announcement number CN214501728U disclosed a multi-impedance heater on January 26, 2021, including a shell body, on which a first air inlet and a first air outlet are arranged; a heating component, which is arranged in the shell body and one side of the heating component is facing the first air inlet; at least two wind wheel assemblies are arranged in the shell body, and the wind wheel assembly has a second air inlet and a second air outlet, the second air inlet is facing the other side of the heating component, and the second air outlet is facing the first air outlet, which is used to draw air from the first air inlet and enter the wind wheel assembly from the second air inlet after being heated by the heating component, and then blown out from the second air outlet and the first air outlet in sequence.

[0004] The shortcomings of the existing technology are: its structure is relatively simple, the arrangement of the fan blades is relatively simple, and the layout of the ventilation fan blades and the blowing fan blades is not balanced, the ventilation efficiency is low, the warm air blown out is not uniform, the noise is high, and the wind speed and air volume are difficult to meet the requirements. In addition, the existing heaters are difficult to disassemble and assemble, and the disassembly and assembly efficiency is low. Utility Model Content

[0005] The utility model aims to provide a high-efficiency heater with high ventilation and air intake efficiency, large wind speed and air volume, low noise, convenient and flexible installation, which can completely solve the problems raised in the background technology.

[0006] To achieve the above-mentioned objectives, the utility model provides the following technical solutions: a high-efficiency air heater, comprising a box body, a box cover, and a plurality of air inlet wheel assemblies arranged in the box body; the box cover is arranged on the box body and the box body and / or the box cover are formed with a first air outlet and a blowing vortex structure for forming a blowing channel; the air inlet wheel assembly comprises a motor arranged in the vortex shell and an air inlet wheel connected to the motor, at least one of the air inlet wheels is arranged toward the box body so that one end of the box body is open to form a first air inlet, and another of the air inlet wheels is arranged toward the box cover so that one end of the box cover is open to form a second air inlet.

[0007] Preferably, the wind inlet wind wheel comprises a wind wheel body, wind blades formed on the wind wheel body, and an auxiliary blade structure formed between the lower end of the wind wheel body and the wind blades.

[0008] Preferably, the motor is integrally formed with the air inlet impeller by plastic molding as an insert.

[0009] Preferably, a second air outlet is also formed on the casing and / or the casing cover, and the second air outlet is located on the same side as the first air outlet.

[0010] Preferably, a partition wall for forming the blowing volute structure is formed on the casing, one end of the partition wall is circular and diverges, and the other end extends towards the direction close to the first air outlet.

[0011] Preferably, there are two blowing volute structures, which are arranged oppositely and communicated with each other in the casing.

[0012] Preferably, a heat exchanger, a filter and air outlet louvers are further provided at the first air outlet of the casing.

[0013] Preferably, a ventilation impeller assembly is further included, which is arranged at one end of the casing far from the second air inlet. The ventilation impeller assembly includes a ventilation volute structure for forming a ventilation channel arranged in the casing, a motor arranged in the ventilation volute structure and a ventilation impeller connected to the motor. The ventilation impeller faces the casing cover so that the other end of the casing cover is opened to form a ventilation air inlet, and an opening is formed on the side wall of the casing at the end far from the second air inlet to form a ventilation air outlet.

[0014] Preferably, the ventilation impeller includes an impeller body, blades formed on the impeller body, and an auxiliary blade structure formed between the lower end of the impeller body and the blades; the motor is integrally formed with the ventilation impeller by plastic molding as an insert.

[0015] Preferably, a mounting frame is further included. The mounting frame is in a "U" shape and is arranged at both ends of the heater, and there is a mounting track between the mounting frames at both ends.

[0016] Preferably, the length of the heater is 755 mm, the width is 70 mm, and the height is 120 mm.

[0017] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0018] 1. By adopting dual-motor blowing and offset air inlet in terms of orientation, the present utility model can greatly improve the air intake efficiency compared with traditional heaters;

[0019] 2. According to aerodynamics and the blowing channel and ventilation channel of the machine, a new type of impeller, blades and auxiliary blade structure are specially designed, increasing the wind speed and air volume;

[0020] 3. The motor and wind wheel are integrally formed by injection molding, which can be installed on the machine as a whole, making it easy to plug in the power cord, install and fix with screws, and also easy to maintain;

[0021] 4. The setting of the second air outlet can make the air blowing more even, increase the wind speed and air volume, and reduce the noise;

[0022] 5. The vortex shell structure is designed with aerodynamic blowing and ventilation channels, which can increase the ventilation and air output of the main engine and control the noise to the lowest state;

[0023] 6. The "J"-shaped mounting frame and mounting track are adopted, which are more stable in use and easier to install compared with the traditional installation method. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a three-dimensional diagram of the utility model;

[0025] Figure 2 This is a schematic diagram of the internal structure of the utility model (1);

[0026] Figure 3 This is a schematic diagram of the internal structure of the utility model (2);

[0027] Figure 4 A three-dimensional diagram of a ventilation impeller or an air inlet impeller in the utility model;

[0028] Figure 5 It is a partial structural schematic diagram of the utility model;

[0029] In the figure: 1. ventilation outlet, 2. mounting frame, 3. ventilation inlet, 4. second air outlet, 5. mounting track, 6. air outlet louver, 7. box cover, 8. first air outlet, 9. second air inlet, 10. ventilation channel, 11. ventilation fan wheel, 12. air inlet fan wheel, 13. blowing channel, 14. partition wall, 15. PCB controller, 16. box body, 17. auxiliary blade structure, 18. fan wheel body, 19. fan blade, 20. first air inlet. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] See also Figures 1 to 5In this embodiment, a high-efficiency air heater comprises a box body 16, a box cover 7, and two air inlet impellers 12 components arranged in the box body 16; the box cover 7 is arranged on the box body 16 and the box body 16 and the box cover 7 are formed with a first air outlet 8, and the box body 16 is formed with a blowing vortex shell structure for forming a blowing channel 13; the air inlet impeller 12 component comprises a motor arranged in the vortex shell and an air inlet impeller 12 connected to the motor, one of the air inlet impellers 12 is arranged toward the box body 16 so that one end of the box body 16 is open to form a first air inlet 20, and the other air inlet impeller 12 is arranged toward the box cover 7 so that one end of the box cover 7 is open to form a second air inlet 9. The air heater in this embodiment adopts dual motors for blowing, and the air inlet adopts staggered air inlet in the direction, which can greatly improve the air intake efficiency compared with the traditional air heater.

[0032] In some other embodiments, the blowing vortex shell structure may also be formed on the box cover 7, or may also be provided on both the box body 16 and the box cover 7, and formed by docking the two.

[0033] Exemplarily, the wind inlet rotor 12 includes a rotor body 18 , blades 19 formed on the rotor body 18 , and an auxiliary blade structure 17 formed between the lower end of the rotor body 18 and the blades 19 .

[0034] Exemplarily, the motor is formed as an insert and is integrally formed with the air inlet impeller 12 through a plastic molding process.

[0035] Exemplarily, it also includes a ventilation wheel 11 assembly, which is arranged at the end of the box body 16 away from the second air inlet 9. The ventilation wheel 11 assembly includes a ventilation volute structure arranged in the box body 16 for forming a ventilation channel 10, a motor arranged in the ventilation volute structure and a ventilation wheel 11 connected to the motor. The ventilation wheel 11 is arranged toward the box cover 7 so that the other end of the box cover 7 is open to form a ventilation inlet 3, and the side wall of the box body 16 at one end away from the second air inlet 9 is opened to form a ventilation outlet 1.

[0036] In some other embodiments, the ventilation volute structure may also be formed on the box cover 7, or may also be provided on both the box body 16 and the box cover 7, and formed by docking the two.

[0037] Exemplarily, the ventilation wind wheel 11 includes a wind wheel body 18 , wind blades 19 formed on the wind wheel body 18 , and an auxiliary blade structure 17 formed between the lower end of the wind wheel body 18 and the wind blades 19 .

[0038] The motor is used as an insert and is integrally formed with the ventilation impeller 11 through a plastic molding process.

[0039] In this embodiment, according to aerodynamics and the machine blowing channel 13 and ventilation channel 10, a new type of wind wheel, wind blades 19 and auxiliary blade structure 17 are specifically designed for the heater in this embodiment, increasing the wind speed and air volume. The motor and the wind wheel are integrally formed by injection molding process, which can achieve integral installation on the machine, facilitating the insertion of the power cord, the installation and fixation with screws, and also facilitating the maintenance operation.

[0040] Exemplarily, a second air outlet 4 is also formed on the box body 16 and the box cover 7, and the second air outlet 4 is located on the same side as the first air outlet 8. The setting of the second air outlet 4 can make the blowing more uniform, increase the wind speed and air volume, and reduce the noise.

[0041] Exemplarily, a partition wall 14 for forming the blowing volute structure is formed on the box body 16. One end of the partition wall 14 is circular and distributed in a divergent shape, and the other end extends towards the direction close to the first air outlet 8. Specifically, there are two blowing volute structures, which are disposed opposite to each other and communicate with each other inside the box body 16. The partition walls 14 of the two blowing volute structures form a butt joint at the connection of the two blowing volute structures and face the first air outlet 8 together. The volute structure is designed with a blowing channel 13 and a ventilation channel 10 that conform to aerodynamics, which can increase the air volume of the host and the air volume of the air outlet, and control the noise to the lowest level.

[0042] Exemplarily, a heat exchanger, a filter and air outlet louvers 6 are further provided at the first air outlet 8 of the box body 16; a PCB controller 15 is also provided inside the box body 16. This belongs to the prior art in this technical field and will not be elaborated here.

[0043] Exemplarily, it further includes a mounting bracket 2. The mounting bracket 2 is in a "U" shape and is configured at both ends of the heater. There is also a mounting track 5 between the mounting brackets 2 at both ends. The "U" - shaped mounting bracket 2 and mounting track 5 are more stable and easier to install during use compared with the traditional installation method.

[0044] Exemplarily, the length of the heater is 755 mm, the width is 70 mm, and the height is 120 mm.

[0045] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inner", "front", "center", "both ends", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0046] In addition, the terms "first", "second", "third" and "fourth" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first", "second", "third" and "fourth" may explicitly or implicitly include at least one of such features.

[0047] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated 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 be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0048] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency air heater, characterized in that: It includes a box body, a box cover, and a plurality of air inlet impeller assemblies arranged in the box body; The box cover is arranged on the box body, and the box body and / or the box cover are formed with a first air outlet and a blowing volute structure for forming a blowing channel; The air inlet impeller assembly includes a motor arranged in the volute and an air inlet impeller connected to the motor. At least one of the air inlet impellers is arranged towards the box body so that one end of the box body is open to form a first air inlet, and the other air inlet impeller is arranged towards the box cover so that one end of the box cover is open to form a second air inlet.

2. A high-efficiency air heater according to claim 1, characterized in that: The air inlet impeller includes an impeller body, blades formed on the impeller body, and an auxiliary blade structure formed between the lower end of the impeller body and the blades.

3. A high-efficiency air heater according to claim 1 or 2, characterized in that: The motor is integrally formed with the air inlet impeller as an insert through a plastic molding process.

4. The high-efficiency air heater according to claim 1, characterized in that: The box body and / or the box cover are also formed with a second air outlet, and the second air outlet is located on the same side as the first air outlet.

5. The high-efficiency air heater according to claim 1, characterized in that: A partition wall for forming the blowing volute structure is formed on the box body. One end of the partition wall is circular and diverges, and the other end extends towards the direction close to the first air outlet.

6. A high-efficiency air heater according to claim 1 or 5, characterized in that: There are two blowing volute structures, which are arranged oppositely and communicated with each other in the box body.

7. The high-efficiency air heater according to claim 1, characterized in that: It further includes a ventilation impeller assembly, which is arranged at one end of the box body away from the second air inlet. The ventilation impeller assembly includes a ventilation volute structure arranged in the box body for forming a ventilation channel, a motor arranged in the ventilation volute structure, and a ventilation impeller connected to the motor. The ventilation impeller is arranged towards the box cover so that the other end of the box cover is open to form a ventilation air inlet, and a ventilation air outlet is formed by opening the side wall at one end of the box body away from the second air inlet.

8. The high-efficiency air heater according to claim 7, characterized in that: The ventilation impeller includes an impeller body, blades formed on the impeller body, and an auxiliary blade structure formed between the lower end of the impeller body and the blades; the motor is integrally formed with the ventilation impeller as an insert through a plastic molding process.

9. The high-efficiency air heater according to claim 1, characterized in that: It further includes a mounting bracket, the mounting bracket is in a "C" shape and is configured at both ends of the heater, and there is also a mounting track between the mounting brackets at both ends.

10. The high-efficiency air heater according to claim 1, characterized in that: The length of the heater is 755 mm, the width is 70 mm, and the height is 120 mm.

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