Modular low resistance air heater

Abstract

Modular low-resistance air heater, including mounting seat, open in the sliding rail on the mounting seat, sliding connection has first sliding seat in the sliding rail, first sliding seat is fixed with ventilation box, ventilation box left side is opened first docking hole, first sliding seat left side is equipped with second sliding seat, second sliding seat is in sliding in the sliding rail, second sliding seat is fixed with heating box, and heating rod is installed on the right side of heating box. Since the utility model adopts modular design, the device separates ventilation box and heating box, when the equipment fails, the user can directly disassemble, and different modules can also be customized according to the needs of the user, convenient for user.

Description

Technical Field

[0001] This utility model relates to the technical field of air heaters, specifically to a modular low-resistance air heater. Background Technology

[0002] This air heater is specifically designed for oven systems requiring rapid heating and high energy efficiency. Abandoning traditional heating methods, it employs advanced heating technology, allowing the heating element to heat up quickly without an open flame. This results in rapid temperature rise, short preheating time, and significantly improved heating efficiency. In industrial drying, food processing, and material heat treatment applications, this heater can stably and continuously output hot air, meeting the process requirements for high temperature uniformity and response speed. Its compact design makes it suitable for space-constrained equipment and facilitates integration into various ovens and hot air circulation systems.

[0003] According to Chinese patent CN223376078U, a smart electric heater with circulating filtration is disclosed, including an air heater body. This utility model sets a filter plate inside the air heater body, so that the air is filtered by the filter plate before entering the fan body through the air inlet. At the same time, a heating tube is set on the top surface of the filter plate, so that the heating tube heats the clean air. In addition, the air heater body has a first partition to prevent the air entering the air heater body through the air inlet from mixing with the dust in the original air inside the air heater body, thereby increasing the air purification load of the filter plate. This solves the problem that most existing air electric heaters only have basic heating functions and lack air purification and circulating filtration functions. In today's increasingly serious air pollution, harmful substances such as dust, pollen, and bacteria in the air pose a threat to human health.

[0004] However, existing air heaters, due to their highly integrated design, while reducing overall size, encapsulate core components such as heating elements, air ducts, temperature control, and safety protection within a single, non-separable housing. If users encounter localized aging, damage, or process changes, they must shut down the entire unit and return it to the factory for repair. This prevents quick fault location and the replacement of vulnerable components like power modules, filters, or sensors as needed; furthermore, it doesn't allow for simple upgrades to the heating section length or airflow settings. This "black box" structure results in long maintenance cycles, high spare parts costs, significant production line downtime losses, poor user experience, and low operational efficiency. Utility Model Content

[0005] The technical problem this invention aims to solve is to overcome the shortcomings of existing air heaters. Due to their highly integrated design, while reducing overall size, these heaters encapsulate core components such as heating elements, air ducts, temperature control, and safety protection within a single, non-separable housing. When users encounter localized aging, damage, or process changes, they are forced to shut down the entire unit and return it to the factory for repair. This prevents quick fault location and the replacement of vulnerable components like power modules, filters, or sensors as needed. Furthermore, it eliminates the possibility of easily upgrading the heating section length or airflow level through simple plug-and-play adjustments. This "black box" structure results in long maintenance cycles, high spare parts costs, significant production line downtime losses, poor user experience, and low operational efficiency.

[0006] The technical solution adopted to solve the above technical problems is: A modular low-resistance air heater includes a mounting base with a sliding rail. A first sliding seat is slidably connected within the sliding rail, and a ventilation box is fixed to the first sliding seat. A first docking hole is provided on the left side of the ventilation box, and a second sliding seat is provided on the left side of the first sliding seat. The second sliding seat slides within the sliding rail, and a heating box is fixed to the second sliding seat. A heating rod is installed on the right side of the heating box. The first and second sliding seats can be quickly docked within the sliding rail to form an integrated "ventilation-heating" module. The first docking hole of the ventilation box is coaxially inserted with the heating rod.

[0007] As a preferred technical solution of this utility model, a telescopic rod is fixed on the lower side of the mounting base. The telescopic rod consists of an extension rod and a telescopic base. The extension rod and the telescopic base are fixed by threads. The telescopic rod is locked by threads and can be raised and lowered steplessly to adapt to different production line heights.

[0008] As a preferred embodiment of this utility model, a control panel is installed on the outside of the heating box, and a drag-reducing wing plate is fixed on the right side of the heating box.

[0009] As a preferred technical solution of this utility model, the drag-reducing wing plate is perpendicular to the air inlet and outlet of the ventilation box, the drag-reducing wing plate is serrated, the drag-reducing wing plate is made of thermally conductive material, the heating rod is embedded in the mounting groove of the drag-reducing wing plate, the drag-reducing wing plate is perpendicular to the airflow direction to form a guide surface, the thermally conductive wing plate directly wraps the heating rod, and the heat is rapidly diffused into the air through the surface of the wing plate, shortening the heating response time and achieving rapid heating.

[0010] As a preferred technical solution of this utility model, a third sliding seat is provided on the right side of the first sliding seat. The third sliding seat slides in the sliding track and a filter screen is fixed on the third sliding seat. The ventilation box has a filter groove at the air inlet and outlet. The filter screen is connected to the filter groove of the ventilation box. The third sliding seat carries the filter screen and inserts it into the filter groove of the ventilation box to form an integrated "primary filter-heating" structure. The filter screen can be pulled out and cleaned online without disassembling the heating module.

[0011] As a preferred embodiment of this utility model, the mounting base has a limiting hole, and the first sliding seat, the second sliding seat, and the third sliding seat are connected and fixed to the limiting hole by bolts.

[0012] The beneficial effects of this utility model are as follows: Because this utility model adopts a modular design, the ventilation box and the heating box are separated. When the equipment fails, the user can directly disassemble and assemble it. At the same time, different modules can be customized according to the user's needs to facilitate user use. The limiting holes and bolts cooperate to realize the quick positioning and locking of the ventilation, heating and filtration modules. The modular design allows the faulty unit to be pulled out and replaced individually. Attached Figure Description

[0013] Figure 1 This is the first axial view of the present invention; Figure 2 This is the second axial view of the present invention; Figure 3 This is the second axial view of the present invention; Figure 4 for Figure 3 A magnified view of part A.

[0014] In the diagram: 1. Mounting base; 2. Sliding rail; 3. First sliding seat; 4. Ventilation box; 5. Second sliding seat; 6. Heating box; 7. Heating rod; 8. First docking hole; 9. Telescopic rod; 10. Control panel; 11. Drag-reducing wing plate; 12. Third sliding seat; 13. Filter screen; 14. Limiting hole. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments 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, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0016] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0017] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0018] In the above description of this utility model, it should be noted that the terms "one side," "the other side," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They 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. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0019] Furthermore, terms such as "identical" do not imply that components must be absolutely identical; minor differences are permissible. The term "perpendicular" simply means that the positional relationship between components is more perpendicular than "parallel," not that the structure must be perfectly perpendicular; a slight tilt is acceptable.

[0020] Example 1

[0021] exist Figure 1-4 This utility model provides a technical solution: a modular low-resistance air heater, including a mounting base 1, a sliding rail 2 on the mounting base 1, a first sliding seat 3 slidably connected in the sliding rail 2, a ventilation box 4 fixed on the first sliding seat 3, a first docking hole 8 on the left side of the ventilation box 4, a second sliding seat 5 on the left side of the first sliding seat 3, the second sliding seat 5 sliding in the sliding rail 2, a heating box 6 fixed on the second sliding seat 5, and a heating rod 7 installed on the right side of the heating box 6. The first sliding seat 3 and the second sliding seat 5 are pushed into each other along the sliding rail 2, so that the heating rod 7 is inserted into the ventilation box 4 through the first docking hole 8, forming a modular docking; bolts passing through the limiting hole 14 can lock the two modules, realizing the rapid assembly and disassembly of the heating section and the ventilation section, meeting the modular requirements of low-resistance air heating.

[0022] In one aspect of this embodiment, a telescopic rod 9 is fixed to the lower side of the mounting base 1. The telescopic rod 9 consists of an extension rod and a telescopic base. The extension rod and the telescopic base of the telescopic rod 9 are fixed by threads. A control panel 10 is installed on the outside of the heating box 6. A drag-reducing wing plate 11 is fixed to the right side of the heating box 6. The drag-reducing wing plate 11 is perpendicular to the air inlet and outlet of the ventilation box 4. The drag-reducing wing plate 11 is serrated and is made of heat-conducting material. The heating rod 7 is embedded in the mounting groove of the drag-reducing wing plate 11. Rotating the threaded pair of the telescopic rod 9 can change the height of the mounting base 1, so that the air inlet and outlet are aligned with the axis of the external air duct. The serrated drag-reducing wing plate 11 increases the heat exchange area and breaks the airflow boundary layer, significantly reducing wind resistance. The heating rod 7 radiates heat evenly into the airflow through the heat-conducting wing plate, achieving efficient and low-resistance instantaneous heating.

[0023] In one aspect of this embodiment, a third sliding seat 12 is provided on the right side of the first sliding seat 3. The third sliding seat 12 slides within the sliding track 2. A filter screen 13 is fixed on the third sliding seat 12. A filter groove is opened at the air inlet and outlet of the ventilation box 4. The filter screen 13 is connected to the filter groove of the ventilation box 4. A limit hole 14 is opened on the mounting base 1. The first sliding seat 3, the second sliding seat 5, and the third sliding seat 12 are connected and fixed to the limit hole 14 by bolts. The filter screen 13 is pushed in along the sliding track 2 and inserted into the filter groove to form a sealed filter surface. The bolts pass through the limit hole 14 to lock the third sliding seat 12, so that the filter module, the heating module, and the ventilation module are connected in series in sequence to achieve integrated low-resistance operation of "filtration-heating-air supply". Moreover, each module can be pulled out and maintained independently without disassembling the entire air duct.

[0024] The working principle of this utility model is as follows: The first sliding seat 3, the second sliding seat 5, and the third sliding seat 12 are pushed in sequentially along the sliding track 2 and bolted in, forming a three-section series structure of "filtration-heating-air supply"; the filter screen 13 is inserted into the filter groove to form a sealed filter surface; the serrated heat-conducting and drag-reducing wing plate 11 breaks up the airflow boundary layer and evenly radiates the heat from the heating rod 7 into the air, achieving low-resistance and high-efficiency heat exchange; the height-adjustable telescopic rod 9 ensures that the air outlet is aligned with the axis of the external air duct, ensuring smooth airflow through each module. When maintenance is required, any module can be pulled out independently without disassembling the entire air duct, thus completing the modular, low-resistance, and easy-to-maintain air heating process.

[0025] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A modular low-resistance air heater, including a mounting base (1), characterized in that: The mounting base (1) has a sliding track (2), and a first sliding seat (3) is slidably connected in the sliding track (2). A ventilation box (4) is fixed on the first sliding seat (3). A first docking hole (8) is opened on the left side of the ventilation box (4). A second sliding seat (5) is provided on the left side of the first sliding seat (3). The second sliding seat (5) slides in the sliding track (2). A heating box (6) is fixed on the second sliding seat (5). A heating rod (7) is installed on the right side of the heating box (6).

2. The modular low-resistance air heater according to claim 1, characterized in that: A telescopic rod (9) is fixed to the lower side of the mounting base (1). The telescopic rod (9) consists of an extension rod and a telescopic base. The extension rod and the telescopic base of the telescopic rod (9) are fixed by threads.

3. The modular low-resistance air heater according to claim 2, characterized in that: A control panel (10) is installed on the outside of the heating box (6), and a drag-reducing wing plate (11) is fixed on the right side of the heating box (6).

4. The modular low-resistance air heater according to claim 3, characterized in that: The drag-reducing wing plate (11) is perpendicular to the air inlet and outlet of the ventilation box (4). The drag-reducing wing plate (11) is serrated and made of thermally conductive material. The heating rod (7) is embedded in the mounting groove of the drag-reducing wing plate (11).

5. The modular low-resistance air heater according to claim 1, characterized in that: A third sliding seat (12) is provided on the right side of the first sliding seat (3). The third sliding seat (12) slides in the sliding track (2). A filter screen (13) is fixed on the third sliding seat (12). A filter groove is opened at the air inlet and outlet of the ventilation box (4). The filter screen (13) is connected to the filter groove of the ventilation box (4).

6. The modular low-resistance air heater according to claim 5, characterized in that: The mounting base (1) has a limiting hole (14), and the first sliding base (3), the second sliding base (5) and the third sliding base (12) are connected and fixed to the limiting hole (14) by bolts.

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