Grid self-cleaning anti-blocking electric energy hot air heater

Abstract

The utility model discloses a kind of grid self-cleaning anti-blocking electric energy hot air heater, including shell, detachable filter assembly and protective grid are respectively arranged at air inlet and air outlet at shell two ends, heat insulation box is set in the upper end of shell, gas storage tank is connected with high-pressure gas pump air inlet end, high-pressure gas pump air outlet end is connected with corresponding nozzle assembly by gas distribution pipeline through heat insulation box side and shell back side, and two nozzle assemblies are respectively aligned filter assembly and protective grid inboard.This grid self-cleaning anti-blocking electric energy hot air heater, by setting dust sensor, high-pressure gas pump and nozzle assembly, reaches the effect of automatic detection dust and high-pressure airflow cleaning, effectively prevent filter assembly and protective grid blockage, and by setting miniature vibration motor and transmission part in filter assembly, reaches the effect of vibration auxiliary dust cleaning to multilayer filter screen, improves dust cleaning efficiency, ensures that air inlet is smooth.

Description

Technical Field

[0001] This utility model relates to the technical field of hot air heaters, specifically to an electric hot air heater with a self-cleaning and anti-clogging grid. Background Technology

[0002] An electric hot air heater is a device that converts electrical energy into heat energy and transfers the heat through a flowing medium (such as air or gas). Its core function is to convert electrical energy into heat energy and output hot air through a heating medium (mostly air or gas). It is widely used for heating, drying, and other applications in industrial, commercial, and residential settings.

[0003] During long-term use, dust, fibers, and other debris in the air can easily adhere to the protective grid, filter, and heating element surface of existing electric hot air heaters, leading to blocked air ducts, reduced heating efficiency, increased energy consumption, and even fire hazards. Users need to manually disassemble and clean these components, which is a cumbersome process and carries the risk of electric shock. To address these issues, existing equipment needs to be improved. Utility Model Content

[0004] The purpose of this utility model is to provide a grid self-cleaning and anti-clogging electric hot air heater to solve the problem mentioned in the background art that in the long-term use of existing electric hot air heaters, dust, fibers and other debris in the air are easily attached to the surface of the heater's protective grid, filter and heating element, resulting in air duct blockage, reduced heating efficiency, increased energy consumption, and even fire hazards. Users need to manually disassemble and clean it, which is a cumbersome process and carries the risk of electric shock.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a grid self-cleaning and anti-clogging electric hot air heater, comprising a housing,

[0006] The housing has an air inlet and an air outlet at both ends, and each air inlet and outlet is equipped with a detachable filter assembly and a protective grille. Inside the housing, a dust sensor, a heating assembly, and a centrifugal air supply assembly are arranged in sequence. A heat insulation box is located at the top of the housing, and an air storage tank is located inside the heat insulation box. The air storage tank is connected to the air inlet of a high-pressure air pump. The air outlet of the high-pressure air pump is connected to a corresponding nozzle assembly through a distribution pipe that passes through the side of the heat insulation box and the rear of the housing. The two nozzle assemblies are respectively aligned with the filter assembly and the inner side of the protective grille. A dust collection assembly is located at the lower end of the filter assembly.

[0007] Preferably, the filter assembly has a first filter plate, a second filter plate, and a third filter plate arranged sequentially from the inside to the outside. The second and third filter plates are detachably connected to the interior of the filter assembly. A miniature vibration motor is arranged in the middle of the second filter plate. The two sides of the miniature vibration motor are attached to one side of the first and third filter plates through corresponding transmission components. A dust discharge channel is opened at the lower end of the filter assembly between the first and second filter plates, and the position of the dust discharge channel corresponds to the position of the through hole opened at the bottom of the housing.

[0008] Preferably, the second filter plate has multiple positioning elements symmetrically arranged on the side near the third filter plate, and the other end of the positioning elements is detachably connected to the third filter plate.

[0009] Preferably, the dust sensor is electrically connected to the controller, and the dust sensor is positioned close to the filter assembly. Meanwhile, the controller is electrically connected to the heating assembly, the centrifugal air supply assembly, the micro vibration motor, and the high-pressure air pump.

[0010] Preferably, the heating element is a PTC ceramic heating element, and a metal protective mesh is provided on the outside of the heating element.

[0011] Preferably, the dust collection assembly includes a protective box, a negative pressure dust pump, a guide pipe, and a dust collection device. The protective box is located on the outer side of the lower end of the through hole. A negative pressure dust pump is installed on one side inside the protective box. The dust inlet of the negative pressure dust pump is connected to the bottom of the guide pipe installed inside the dust discharge channel. The guide pipe is funnel-shaped. The dust outlet of the negative pressure dust pump is detachably connected to the dust collection device installed on the other side inside the protective box.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: The grid self-cleaning and anti-clogging electric hot air heater of this utility model achieves the effect of automatically detecting dust and cleaning with high-pressure airflow by setting a dust sensor, a high-pressure air pump and a nozzle assembly, which effectively prevents the filter assembly and protective grid from clogging. Furthermore, by setting a micro vibration motor and transmission components in the filter assembly, the multi-layer filter screen is vibrated to assist in dust removal, thereby improving the dust removal efficiency and ensuring smooth air intake.

[0013] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0014] Figure 1 This is a front view structural diagram of the present invention;

[0015] Figure 2 This is a frontal cross-sectional view of the present invention.

[0016] Figure 3 This is a front view cross-sectional structural diagram of the filter assembly of this utility model.

[0017] In the diagram: 1. Housing; 2. Filter assembly; 201. First filter screen; 202. Second filter screen; 203. Third filter screen; 204. Miniature vibration motor; 205. Transmission component; 206. Positioning component; 207. Dust exhaust channel; 3. Protective grille; 4. Heating component; 5. Centrifugal air supply component; 6. Insulation box; 7. Air storage tank; 8. High-pressure air pump; 9. Air distribution pipe; 10. Nozzle assembly; 11. Protective box; 12. Negative pressure dust pump; 13. Guide pipe; 14. Dust collection device. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figure 1-3 This utility model provides a technical solution: a grid self-cleaning and anti-clogging electric hot air heater, based on... Figure 1 , Figure 2 and Figure 3 As shown, the housing 1 has an air inlet and an air outlet at both ends, and the air inlet and air outlet are respectively equipped with a detachable filter assembly 2 and a protective grille 3. At the same time, a dust sensor, a heating assembly 4 and a centrifugal air supply assembly 5 are arranged sequentially inside the housing 1. The dust sensor is electrically connected to the controller and is located near the filter assembly 2 to detect airflow resistance or dust concentration. The controller is electrically connected to the heating assembly 4, the centrifugal air supply assembly 5, the micro vibration motor 204 and the high-pressure air pump 8. The heating assembly 4 is a PTC ceramic heating element and is equipped with a metal protective mesh. The centrifugal air supply assembly 5 is a centrifugal fan. The centrifugal air supply assembly 5 provides strong and stable airflow to deliver heat.

[0020] Specifically, the filter assembly 2 contains, from the inside out, a first filter plate 201, a second filter plate 202, and a third filter plate 203, forming a three-layer filtration system to improve filtration efficiency and effectiveness. The second filter plate 202 and the third filter plate 203 are detachably connected to the interior of the filter assembly 2. Multiple positioning elements 206 are symmetrically arranged on the side of the second filter plate 202 near the third filter plate 203, and the other end of each positioning element 206 is detachably connected to the third filter plate 203, facilitating the disassembly and installation of the second and third filter plates 202 and 203. The filter assembly is designed to facilitate deep cleaning or replacement later. A micro vibration motor 204 is installed in the middle of the second filter screen 202. The two sides of the micro vibration motor 204 are attached to one side of the first filter screen 201 and the third filter screen 203 through corresponding transmission components 205. The micro vibration motor 204 generates vibration to help shake off stubborn dust on the filter screen. A dust discharge channel 207 is opened at the lower end of the filter assembly 2 between the first filter screen 201 and the second filter screen 202. The position of the dust discharge channel 207 corresponds to the position of the through hole opened at the bottom of the housing 1.

[0021] according to Figure 1 and Figure 2 As shown, a heat insulation box 6 is provided at the upper end of the shell 1, and an air storage tank 7 is provided inside the heat insulation box 6. The air storage tank 7 is connected to the air inlet of a high-pressure air pump 8. The air outlet of the high-pressure air pump 8 is connected to the corresponding nozzle assembly 10 through a gas distribution pipe 9 that passes through the side of the heat insulation box 6 and the rear of the shell 1. The two nozzle assemblies 10 are respectively aligned with the inner side of the filter assembly 2 and the protective grille 3. The high-pressure gas in the air storage tank 7 is delivered to the nozzle assembly 10 through the high-pressure air pump 8 and the gas distribution pipe 9, so that the nozzle blows air from the inside to the filter assembly 2 and the protective grille 3, blowing away the attached dust. At the same time, a dust collection assembly is provided at the lower end of the filter assembly 2.

[0022] Specifically, the dust collection assembly includes a protective box 11, a negative pressure dust pump 12, a guide pipe 13, and a dust collection device 14. The protective box 11 is located on the outer side of the lower end of the through hole. The negative pressure dust pump 12 is installed on one side inside the protective box 11. The dust inlet of the negative pressure dust pump 12 is connected to the bottom of the guide pipe 13 installed inside the dust discharge channel 207. The guide pipe 13 is funnel-shaped. The dust outlet of the negative pressure dust pump 12 is detachably connected to the dust collection device 14 installed on the other side inside the protective box 11. Through the negative pressure dust pump 12, the guide pipe 13, and the dust collection device 14, the dust collected after cleaning is collected in a timely manner, avoiding secondary pollution and facilitating subsequent cleaning.

[0023] In use, the centrifugal air supply component 5 is activated to draw in air from the air inlet. The air passes through the filter component 2 to remove dust and impurities, and then flows through the heating component 4 to be heated. The heated air is then blown out from the protective grille 3 at the air outlet to provide heating. When the dust sensor detects a large amount of dust on the filter component 2, it sends a signal to the controller. Upon receiving the signal, the controller activates the high-pressure air pump 8 and the micro vibration motor 204. The high-pressure air pump 8 delivers high-pressure gas to the nozzle component 10 through the air distribution pipe 9. The nozzle blows air from the inside towards the filter component 2 and the protective grille 3, blowing away the attached dust. At the same time, the micro vibration motor 204 and the transmission component 205 drive the filter screen to vibrate, causing stubborn dust to fall off. The blown-off dust is then drawn into the dust collection device 14 by the negative pressure dust pump 12 through the guide pipe 13.

[0024] The terms “center,” “longitudinal,” “lateral,” “front,” “rear,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are merely simplified descriptions for the convenience of describing this utility model 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 limiting the scope of protection of this utility model.

[0025] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A grid self-cleaning and anti-clogging electric hot air heater, comprising a housing (1), characterized in that: The housing (1) has an air inlet and an air outlet at both ends, and the air inlet and air outlet are respectively equipped with a detachable filter assembly (2) and a protective grille (3). At the same time, a dust sensor, a heating assembly (4) and a centrifugal air supply assembly (5) are arranged in sequence inside the housing (1). A heat insulation box (6) is arranged at the upper end of the housing (1), and an air storage tank (7) is arranged inside the heat insulation box (6). The air storage tank (7) is connected to the air inlet of a high-pressure air pump (8). The air outlet of the high-pressure air pump (8) is connected to the corresponding nozzle assembly (10) through the air distribution pipe (9) through the side of the heat insulation box (6) and the rear side of the housing (1). The two nozzle assemblies (10) are respectively aligned with the inside of the filter assembly (2) and the protective grille (3). At the same time, a dust collection assembly is arranged at the lower end of the filter assembly (2).

2. The grid self-cleaning and anti-clogging electric hot air heater as described in claim 1, characterized in that: The filter assembly (2) is provided with a first filter plate (201), a second filter plate (202) and a third filter plate (203) arranged sequentially from the inside to the outside. The second filter plate (202) and the third filter plate (203) are detachably connected to the inside of the filter assembly (2). Meanwhile, a micro vibration motor (204) is provided in the middle of the second filter plate (202). The micro vibration motor (204) is attached to one side of the first filter plate (201) and the third filter plate (203) through corresponding transmission parts (205) on both sides. A dust discharge channel (207) is provided at the lower end of the filter assembly (2) between the first filter plate (201) and the second filter plate (202). The position of the dust discharge channel (207) is corresponding to the position of the through hole opened at the bottom of the housing (1).

3. The grid self-cleaning and anti-clogging electric hot air heater as described in claim 2, characterized in that: The second filter plate (202) is symmetrically provided with a plurality of positioning elements (206) on the side near the third filter plate (203), and the other end of the positioning element (206) is detachably connected to the third filter plate (203).

4. The grid self-cleaning and anti-clogging electric hot air heater as described in claim 1, characterized in that: The dust sensor is electrically connected to the controller and is positioned close to the filter assembly (2). The controller is electrically connected to the heating assembly (4), the centrifugal air supply assembly (5), the micro vibration motor (204), and the high-pressure air pump (8).

5. The grid self-cleaning and anti-clogging electric hot air heater as described in claim 1, characterized in that: The heating element (4) is a PTC ceramic heating element, and a metal protective mesh is provided on the outside of the heating element (4).

6. The grid self-cleaning and anti-clogging electric hot air heater as described in claim 1, characterized in that: The dust collection assembly includes a protective box (11), a negative pressure dust pump (12), a guide pipe (13), and a dust collection device (14). The protective box (11) is located on the outer side of the lower end of the through hole. Meanwhile, a negative pressure dust pump (12) is provided on one side inside the protective box (11). The dust inlet end of the negative pressure dust pump (12) is connected to the bottom of the guide pipe (13) provided inside the dust discharge channel (207). The guide pipe (13) is funnel-shaped. Meanwhile, the dust outlet end of the negative pressure dust pump (12) is detachably connected to the dust collection device (14) provided on the other side inside the protective box (11).

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