Air duct electric heater

Abstract

The utility model relates to the related technical field of heaters, and discloses an air duct electric heater, which comprises a main body assembly, the main body assembly comprises a base on which a box body is arranged; the heating element is arranged above the box body; the heating pipe is arranged on the heating element; the inlet end is in through connection with one end of the box body; the box body is also provided with a dustproof assembly. The dust-proof component and the ventilation component are arranged, so that air enters from the fan during use and is filtered by the dust collection plate; air is filtered and then heated through the heating cavity, baffles are distributed in the heating cavity, the baffles are sequentially arranged in an S shape in a staggered mode, heating pipes are arranged in gaps of the baffles, the contact time of the baffles and the heating pipes is prolonged, and the heat conduction quality is improved; the problems that a traditional air duct heating device cannot remove dust, the contact time between air and a heating pipe is too short, and the heat conduction efficiency is poor are solved.

Description

Technical Field

[0001] The utility model relates to the technical field related to heaters, in particular to an air duct electric heater. Background Art

[0002] The duct type electric heater is mainly composed of two parts: the main body and the control system. The heating element adopts stainless steel pipe as the protective casing, high temperature resistance alloy wire, crystalline magnesium oxide powder, and is formed by compression process. The control part adopts advanced digital circuit, integrated circuit trigger, high reverse voltage thyristor, etc. to form an adjustable temperature measurement and constant temperature system to ensure the normal operation of the electric heater.

[0003] However, the existing air duct heaters basically have no dust-proof effect. After long-term use, a large amount of dust will be attached to the inside of the equipment, affecting its normal use. At the same time, the inlet end is usually driven by a fan and heated by an electric heating wire or a heating tube. Due to the excessive wind speed, the heat transfer quality is low. Traditional air duct electric heaters usually increase the power of the electric heating wire to increase the heating intensity, which increases the consumption of electric energy. In the related scheme, an air duct electric heater includes a body, one side of the body is fixedly connected to an air inlet, one side of the body is fixedly connected to an air outlet, and the interior of the body is slidably connected to an adsorption plate. A handle is fixedly connected to the upper surface of the attachment plate, a limiting groove is provided inside the main body, an adsorption magnet is fixedly connected to the bottom of the adsorption plate, a sealing plate is slidably connected to the inside of the main body, a common magnet is fixedly connected to the top surface of the sealing plate, a limiting plate is slidably connected to the inside of the sealing plate, a telescopic rod is fixedly connected to one side of the limiting plate, a spring is fixedly connected to the upper surface of the telescopic rod, a blocking plate is fixedly connected to one end of the telescopic rod, and a support rod is fixedly connected to one end of the blocking plate. The adsorption plate can absorb and filter dust in the air, but it does not solve the problem of high air flow rate and excessive contact time with the heating wire. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the shortcomings of the prior art, the utility model provides an air duct electric heater, which has the advantages of dust removal and increasing the contact time between the electric heating tube and the air, solving the problems that the traditional air duct heating device cannot remove dust, the contact time between the air and the heating tube is too short, and the heat conduction efficiency is poor.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a duct electric heater, including a main body component; the main body component includes: a base with a box body arranged on it; a heating element is arranged above the box body; a heating tube is arranged on the heating element; an inlet end is through-connected to one end of the box body; a dustproof component is also arranged on the box body, and the dustproof component includes: a plug-in slot is opened at the inlet end; a dust collection plate is arranged in the plug-in slot; a handle is arranged on the dust collection plate; a ventilation component is also arranged on the box body, and the ventilation component includes: a fan is arranged at the inlet end; a heating chamber, and the inner cavity of the box body is a heating chamber; a barrier plate is arranged in the heating chamber.

[0008] In some embodiments, the main body component further includes: an outlet end is connected to the other end of the box body.

[0009] In some embodiments, the dust collecting plate is folded.

[0010] In some embodiments, the barrier panel is configured as pleats.

[0011] In some embodiments, a plurality of baffles are provided.

[0012] In some embodiments, the baffles are fixed to the inner wall of the box in an alternating manner.

[0013] In some embodiments, the heating tube is disposed between the gaps between the baffle plates.

[0014] In some embodiments, there is no gap between the blocking plate and the heating element and the bottom surface of the heating chamber.

[0015] (III) Beneficial effects

[0016] Compared with the prior art, the utility model provides an air duct electric heater, which has the following beneficial effects:

[0017] The utility model is provided with a dust-proof component and a ventilation component. When in use, air enters from the fan and is filtered through the dust collecting plate to clean up the dust particles in the air. At the same time, the dust collecting plate is plugged into the inlet end, and it only needs to be pulled out by pulling the handle when replacing it. After the air is filtered, it will pass through the heating chamber for heating. The heating chamber is provided with baffle plates, which are arranged in an S-shape in sequence. Heating tubes are arranged in the gaps. The air will advance along the gaps between the baffle plates due to the partition of the baffle plates. In this process, the contact time between the air and the heating tube is greatly increased, and the quality of heat conduction is increased. Finally, the heated air flows out from the outlet end to complete the heating. The dust-proof component and ventilation component are provided to solve the problems that the traditional air duct heating device cannot remove dust, which may easily cause equipment damage for a long time, and the contact time between the air and the heating tube is too short, resulting in poor heat conduction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the structure inside the box of the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the heating element and the heating tube of the utility model;

[0021] Figure 4 It is a structural schematic diagram of the dust collecting plate of the utility model.

[0022] In the figure:

[0023] 1. Main assembly; 11. Base; 12. Box; 13. Heating element; 14. Heating tube; 15. Inlet end; 16. Outlet end.

[0024] 2. Dust-proof assembly; 21. Dust-collecting plate; 22. Handle; 23. Plug-in slot.

[0025] 3. Ventilation assembly; 31. Fan; 32. Heating chamber; 33. Baffle plate. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0027] It should be noted that all directional indications in the embodiments of the present application are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0028] In this application, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral 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. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0029] The duct type electric heater is mainly composed of two parts: the main body and the control system. The heating element adopts stainless steel pipe as the protective casing, high temperature resistance alloy wire, crystalline magnesium oxide powder, and is a machine formed by a compression process; it is usually driven by a fan and heats the air through the electric heating wire to achieve the purpose of heating.

[0030] In the related art, there is an air duct electric heater, including a main body, one side of the main body is fixedly connected to an air inlet, one side of the main body is fixedly connected to an air outlet, and the interior of the main body is slidably connected to an adsorption plate, which can adsorb and filter dust in the air through the adsorption plate, but it does not solve the problem of high air flow rate and excessive contact time with the heating wire, and has certain limitations.

[0031] In order to solve the problems in the related art to a certain extent, an embodiment of the present application provides an air duct electric heater. When the device is used, the power is turned on so that the heating element 13 and the fan 31 can operate normally. The fan 31 drives the air to enter from the inlet end 15 and filters it through the dust collection plate 21 to achieve the purpose of dust removal. At the same time, the air will pass through the baffle plate 33 when entering the heating chamber 32. The baffle plates 33 are arranged in an S-shape in sequence. After entering, the air will move along the gaps between the baffle plates 33, and the gaps between the baffle plates 33 are all provided with heating tubes 14, which greatly increases the contact time with the air and improves the heating quality.

[0032] The present application is described below with reference to the accompanying drawings and specific embodiments:

[0033] Combination Figure 1-Figure 4 The embodiment of the present application provides an air duct electric heater, including a main body component 1; the main body component 1 includes: a base 11 on which a box body 12 is arranged; a heating element 13 is arranged above the box body 12; a heating tube 14 is arranged on the heating element 13; an inlet end 15 is connected to one end of the box body 12; a dustproof component 2 is also arranged on the box body 12, and the dustproof component 2 includes: a plug-in slot 23 is opened at the inlet end 15; a dust suction plate 21 is arranged in the plug-in slot 23; a handle 22 is arranged on the dust suction plate 21; a ventilation component 3 is also arranged on the box body 12, and the ventilation component 3 includes: a fan 31 is arranged at the inlet end 15; a heating chamber 32, the inner cavity of the box body 12 is a heating chamber 32; a baffle plate 33 is arranged in the heating chamber 32.

[0034] When using the device, first start the fan 31 and the heating element 13. The fan 31 drives the air to flow. First, the air enters from the fan 31 and is filtered by the dust collecting plate 21 to clean up the dust particles in the air to prevent the entire device from being affected. The dust collecting plate 21 is plugged into the inlet end 15. When replacing, just pull the handle 22 to take it out, which is convenient and quick. After the air is filtered, it will pass through the heating chamber 32 for heating. The heating chamber 32 is provided with baffle plates 33. The baffle plates 33 are arranged in an S shape in sequence, and heating tubes 14 are arranged in the gaps. The air will advance along the gaps between the baffle plates 33 due to the partition of the baffle plates 33. In this process, the contact time with the heating tube 14 is greatly increased, and the quality of heat conduction is increased. Finally, the heated air flows out from the outlet end 16 to complete the heating.

[0035] In some embodiments, the main component 1 further includes: an outlet end 16 connected through the other end of the box body 12, and the outlet end 16 is the place where air flows out of the device, which can better connect with the required place or equipment in the outside world.

[0036] In some embodiments, the dust collecting plate 21 is pleated, and the pleats can increase its surface area, thereby increasing the contact area with the air and improving the filtering quality.

[0037] In some embodiments, the baffle plate 33 is configured with folds. Similarly, when air passes between the two baffle plates 33, the baffle plate 33 will also bend in an S shape to move, thereby further increasing the contact time between the baffle plate 33 and the heating tube 14, thereby increasing the heat conduction quality.

[0038] In some embodiments, a plurality of baffles 33 are provided to further increase the air passing time and improve the heat conduction quality.

[0039] In some embodiments, the baffles 33 are fixed to the inner wall of the box body 12 in an alternating manner, so that air flows through the gaps set between the baffles 33 to ensure its functionality.

[0040] In some embodiments, the heating tube 14 is disposed between the gaps between the baffle plates 33 , and air travels through the gaps between the baffle plates 33 . Such a configuration of the heating tube 14 can greatly increase the contact time between the heating tube 14 and the air.

[0041] In some embodiments, there is no gap between the baffle plate 33 and the heating element 13 and the bottom surface of the heating chamber 32, so that the air will not bypass the baffle plate 33 from above or below, thereby ensuring its heating time. In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification.

[0042] In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0043] 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. An air duct electric heater, characterized in that: The invention comprises a main body component (1); the main body component (1) comprises: A base (11) on which a box body (12) is arranged; A heating element (13) is arranged above the box (12); A heating tube (14) is arranged on the heating element (13); An inlet end (15) is connected to one end of the box body (12); The box body (12) is also provided with a dustproof component (2), and the dustproof component (2) comprises: A plug-in slot (23) is provided at the inlet end (15); A dust collecting plate (21) is arranged in the plug-in slot (23); A handle (22) is arranged on the dust collecting plate (21); The box body (12) is also provided with a ventilation assembly (3), and the ventilation assembly (3) comprises: A fan (31) is arranged at the inlet end (15); A heating chamber (32), wherein the inner chamber of the box body (12) is the heating chamber (32); The baffle plate (33) is arranged in the heating chamber (32).

2. The air duct electric heater according to claim 1, characterized in that: The main body component (1) further comprises: The outlet end (16) is connected to the other end of the box body (12).

3. The air duct electric heater according to claim 1, characterized in that: The dust collecting plate (21) is arranged in a folded pattern.

4. The air duct electric heater according to claim 1, characterized in that: The baffle plate (33) is arranged in a folded pattern.

5. The air duct electric heater according to claim 1, characterized in that: A plurality of baffle plates (33) are provided.

6. The air duct electric heater according to claim 5, characterized in that: The baffle plates (33) are fixed to the inner wall of the box body (12) in a staggered manner in sequence.

7. The air duct electric heater according to claim 6, characterized in that: The heating tube (14) is arranged in the gap between the baffle plates (33).

8. The air duct electric heater according to claim 1, characterized in that: There is no gap between the blocking plate (33) and the heating element (13) and the bottom surface of the heating chamber (32).

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