Air electric heater

Abstract

The utility model belongs to the technical field of heating equipment, and particularly relates to an air electric heater which comprises a barrel body. The flow guide assembly comprises a spiral blade arranged in the cylinder body; wherein the outer side of the spiral blade is connected with the inner wall of the cylinder body; the plurality of electric heating elements are arranged in the cylinder body and penetrate through the spiral blade; the spiral blades are suitable for guiding air in the barrel to flow so that the electric heating elements can evenly heat flowing air, the air electric heater optimizes the flowing path of the air in the barrel through guiding of the spiral blades, the air can evenly flow through the electric heating elements, and therefore the heating efficiency of the air electric heater is improved. Therefore, the problem of local overheating or insufficient heating is avoided, and the heating uniformity and efficiency are greatly improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of heating equipment, specifically relating to an air electric heater. Background Technology

[0002] An air electric heater is a device used to heat air. It mainly consists of a heater shell, electric heating element, control system and safety protection device. Its working principle is to convert electrical energy into heat energy to heat the air.

[0003] Traditional electric heaters operate in a relatively simple heating environment, which often leads to uneven heating during air circulation within the casing. Uneven heating results in lower heating efficiency and affects the stability and consistency of the heating effect. In applications requiring high heating uniformity, traditional electric heaters can easily cause problems such as decreased product quality and unstable processes.

[0004] Therefore, in order to solve the above problems, it is necessary to design an air electric heater. Utility Model Content

[0005] The purpose of this invention is to provide an air electric heater to solve the technical problem of uneven heating of air in traditional electric heaters.

[0006] To solve the above-mentioned technical problems, this utility model provides an air electric heater, comprising:

[0007] cylindrical body;

[0008] The flow guiding assembly includes: helical blades disposed within the cylinder; wherein

[0009] The outer side of the spiral blade is connected to the inner wall of the cylinder;

[0010] Several electric heating elements are installed inside the cylinder, all of which penetrate the spiral blades;

[0011] The spiral blades are adapted to guide the airflow inside the cylinder so that each heating element can uniformly heat the flowing air.

[0012] Furthermore, the flow guiding assembly further includes: a support shaft disposed within the cylinder; wherein

[0013] The helical blades are wound around a support shaft; and

[0014] A spiral space is formed between the inner wall of the cylinder, the spiral blades, and the support shaft, so that air can flow within the spiral space.

[0015] Furthermore, an air inlet is connected to the bottom of one end of the cylinder;

[0016] An air outlet is provided at the top of the other end of the cylinder.

[0017] Furthermore, the cylinder is provided with connecting flanges at both ends;

[0018] Both of the aforementioned connecting flanges are fitted with sealing caps on their outer sides; wherein

[0019] Both sealing caps are connected to the support shaft.

[0020] Furthermore, a controller is provided on one side of any of the sealing caps; wherein

[0021] One end of each of the heating elements passes through any of the sealing caps and is connected to the controller.

[0022] Furthermore, the cylindrical body comprises: an inner liner, a shell, and an insulation layer arranged sequentially from the inside out; wherein

[0023] The inner wall of the inner liner is in contact with the outer side of the spiral blade;

[0024] The bottom of the insulation layer is provided with at least two support members.

[0025] Furthermore, the heating element comprises: a U-shaped heating tube, at least one high-temperature resistance wire disposed within the U-shaped heating tube, and crystalline magnesium oxide powder filled within the U-shaped heating tube; wherein

[0026] The U-shaped heating tube penetrates any of the sealing covers and then contacts the controller; and

[0027] The high-temperature resistance wire is electrically connected to the controller.

[0028] The beneficial effects of this utility model are:

[0029] (i) When the heating element starts working, it converts electrical energy into heat energy. At the same time, the spiral blades guide the air flow in the cylinder, so that the air can flow evenly through each heating element, thereby achieving uniform heating. The heated air is then discharged through the outlet of the cylinder for subsequent use. The spiral blades optimize the air flow path in the cylinder, so that the air can flow evenly through each heating element, thereby avoiding the problem of local overheating or insufficient heating, and greatly improving the uniformity and efficiency of heating.

[0030] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objectives and other advantages of this invention are realized and obtained through the structures particularly pointed out in the description and the accompanying drawings.

[0031] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0032] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0033] Figure 1 This is a cross-sectional perspective view of a preferred embodiment of the cylindrical body of this utility model;

[0034] Figure 2 This is a perspective view of a preferred embodiment of this utility model;

[0035] Figure 3 This is a perspective view of a preferred embodiment of the present invention.

[0036] Figure 4 This is a cross-sectional view of a preferred embodiment of the cylindrical body of this utility model;

[0037] Figure 5 This is a cross-sectional view of a preferred embodiment of the electric heating element of this utility model.

[0038] In the picture:

[0039] Cylinder 1, inner liner 101, shell 102 and insulation layer 103;

[0040] Flow guide assembly 2, spiral blade 201, support shaft 202;

[0041] Heating element 3, U-shaped heating tube 301, high-temperature resistance wire 302, crystalline magnesium oxide powder 303;

[0042] 4. Air inlet; 5. Air outlet; 6. Connecting flange; 7. Sealing cover; 8. Controller; 9. Support component. Detailed Implementation

[0043] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model. Example 1

[0044] like Figures 1 to 5 As shown, this embodiment provides an air electric heater, including:

[0045] A cylindrical body 1; a flow guiding assembly 2, comprising: a spiral blade 201 disposed within the cylindrical body 1; wherein the outer side of the spiral blade 201 is connected to the inner wall of the cylindrical body 1; a plurality of electric heating elements 3 disposed within the cylindrical body 1, all penetrating the spiral blade 201; the spiral blade 201 is adapted to guide the airflow within the cylindrical body 1 so that each electric heating element 3 uniformly heats the flowing air; wherein the spiral blade 201 also serves to support each electric heating element 3.

[0046] In this embodiment, when the heating element 3 starts working, it converts electrical energy into heat energy. At the same time, the spiral blades 201 guide the air flow inside the cylinder 1, so that the air can flow evenly through each heating element 3, thereby achieving uniform heating. The heated air is then discharged through the outlet of the cylinder 1 for subsequent use. By guiding the air through the spiral blades 201, the air flow path inside the cylinder 1 is optimized, so that the air can flow evenly through each heating element 3, thereby avoiding the problem of local overheating or insufficient heating, and greatly improving the uniformity and efficiency of heating.

[0047] The flow guiding assembly 2 further includes: a support shaft 202 disposed inside the cylinder 1; wherein the spiral blades 201 are wound around the support shaft 202; and a spiral space is formed between the inner wall of the cylinder 1, the spiral blades 201 and the support shaft 202, so that air flows in the spiral space; wherein the support shaft 202, the spiral blades 201 and the inner wall of the cylinder 1 together form a spiral space, which is the main path for air to flow in the cylinder 1. When air enters the cylinder 1, it is guided into this spiral space and rotates and flows under the guidance of the spiral blades 201. This flow mode not only ensures that the air can flow evenly through each heating element 3, but also increases the contact time and area between the air and the heating element, thereby improving heating efficiency and uniformity.

[0048] The bottom of one end of the cylinder 1 is connected to an air inlet 4; the top of the other end of the cylinder 1 is provided with an air outlet 5; both the air inlet 4 and the air outlet 5 are provided with flange connections to facilitate connection with other components.

[0049] The cylinder 1 is provided with connecting flanges 6 at both ends; sealing covers 7 are connected to the outer sides of the two connecting flanges 6; the two sealing covers 7 are connected to the support shaft 202; by setting the connecting flanges 6, it is easy to connect with other components; by setting the sealing covers 7, the sealing of the cylinder 1 is achieved; at the same time, by setting the sealing covers 7 to connect the connecting flanges 6, it is also easy to disassemble and maintain the heating element 3.

[0050] A controller 8 is provided on one side of any of the sealing covers 7; one end of each of the heating elements 3 passes through any of the sealing covers 7 and is connected to the controller 8; the sealing cover 7 also serves to support the heating element 3; at the same time, by setting the controller 8, the temperature of each heating element 3 can be precisely controlled.

[0051] The cylinder 1 includes: an inner liner 101, a shell 102, and an insulation layer 103 arranged sequentially from the inside to the outside; wherein the inner wall of the inner liner 101 contacts the outer side of the spiral blade 201; the bottom of the insulation layer 103 is provided with at least two support members 9; by setting the inner liner 101, uniform heat distribution and efficient heat transfer are achieved; by setting the shell 102, the inner liner 101 and the heating element 3 are protected, preventing external impurities or moisture from entering the cylinder 1, and ensuring stability and safety during the heating process; by setting the insulation layer 103, heat loss is reduced and energy utilization is improved; wherein the insulation layer 103 is made of, but is not limited to, aluminum silicate fiber cotton.

[0052] The heating element 3 includes: a U-shaped heating tube 301, at least one high-temperature resistance wire 302 disposed within the U-shaped heating tube 301, and crystalline magnesium oxide powder 303 filled within the U-shaped heating tube 301; wherein the U-shaped heating tube 301 penetrates any sealing cover 7 and contacts the controller 8; and the high-temperature resistance wire 302 is electrically connected to the controller 8; wherein the U-shaped heating tube 301 not only serves as a carrier for the high-temperature resistance wire 302, but also plays a protective and isolating role, preventing the high-temperature resistance wire 302 from directly contacting the air or the inner wall of the cylinder 1, thereby avoiding the risk of short circuit or damage; wherein the crystalline magnesium oxide powder 303 plays a good role in thermal conductivity and electrical insulation, and can efficiently transfer the heat generated by the high-temperature resistance wire 302 to the U-shaped heating tube 301, while preventing current leakage or short circuit during the heating process. In addition, the crystalline magnesium oxide powder 303 also has good high-temperature resistance and can remain stable in high-temperature environments.

[0053] All the devices selected in this application (parts whose specific structures are not specified) are general standard parts or parts known to those skilled in the art. Their structures and principles can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0054] In the description of the embodiments of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0055] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are 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. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0056] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. An air electric heater, characterized by, The air electric heater comprises a barrel (1) and a flow guide assembly (2) arranged in the barrel (1). The flow guide assembly (2) comprises a spiral blade (201) arranged in the barrel (1). The outer side of the spiral blade (201) is connected with the inner wall of the barrel (1). A plurality of electric heating elements (3) are arranged in the barrel (1) and penetrate the spiral blade (201). The spiral blade (201) is adapted to guide the air flow in the barrel (1) to uniformly heat the flowing air.

2. The air electric heater according to claim 1, wherein The flow guide assembly (2) further comprises a support shaft (202) arranged in the barrel (1). The spiral blade (201) is arranged around the support shaft (202). The inner wall of the barrel (1), the spiral blade (201) and the support shaft (202) form a spiral space for the air flow.

3. The air electric heater according to claim 2, wherein One end of the barrel (1) is provided with an air inlet (4). The other end of the barrel (1) is provided with an air outlet (5).

4. The air electric heater according to claim 3, wherein Both ends of the barrel (1) are provided with connecting flanges (6). The outer sides of the connecting flanges (6) are connected with sealing covers (7). The sealing covers (7) are connected with the support shaft (202).

5. The air electric heater according to claim 4, wherein One side of each of the sealing covers (7) is provided with a controller (8). One end of each of the electric heating elements (3) is connected with the controller (8) after penetrating each of the sealing covers (7).

6. The air electric heater according to claim 5, wherein The barrel (1) comprises an inner container (101), a shell (102) and a thermal insulation layer (103) arranged in sequence from inside to outside. The inner wall of the inner container (101) is in contact with the outer side of the spiral blade (201). The bottom of the thermal insulation layer (103) is provided with at least two supporting members (9).

7. The air electric heater according to claim 6, wherein The electric heating element (3) comprises a U-shaped heating tube (301), at least one high-temperature resistance wire (302) arranged in the U-shaped heating tube (301) and crystalline magnesium oxide powder (303) filled in the U-shaped heating tube (301). The U-shaped heating tube (301) is in contact with the controller (8) after penetrating each of the sealing covers (7). The high-temperature resistance wire (302) is electrically connected with the controller (8). ​ ​

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