Electric heating warmer with noise reduction

Abstract

The utility model discloses an electric heating warmer of noise reduction, and the device includes: the warmer shell, be equipped with electric heating element in the warmer shell, electric heating element one side is equipped with fan assembly, the warmer shell is located in one end of fan assembly and is equipped with the air outlet, the warmer shell is located in the opposite end of air outlet and is equipped with the air inlet, the air outlet and air inlet all are equipped with the sound absorption cotton layer and honeycomb formula sound attenuation grid, the inner wall of warmer shell is equipped with the corrugated flow groove. The utility model has the advantages of: the sound absorption cotton layer and honeycomb formula sound attenuation grid that the air outlet and air inlet set, form double -deck sound attenuation structure, effectively reduce the mechanical noise that fan assembly generates and the wind noise that the airflow passes the air hole forms, the corrugated flow groove of warmer shell inner wall changes the airflow direction, breaks the regularity fluctuation of airflow, reduces the vortex generation, further weakens the wind noise and the resonance sound of internal element.

Description

Technical Field

[0001] This utility model belongs to the field of household appliance technology, specifically relating to a noise-reducing electric heater. Background Technology

[0002] Electric heaters are widely used in winter heating systems due to their convenience. However, traditional electric heaters produce noticeable mechanical noise from the fan assembly, wind noise from airflow through the vents, and resonance from internal components. This noise can severely disrupt rest and work in quiet environments such as bedrooms and offices.

[0003] Therefore, there is an urgent need to provide a noise-reducing electric heater to solve the problems mentioned in the background art. Utility Model Content

[0004] The purpose of this invention is to provide a noise-reducing electric heater to solve the technical problems of mechanical noise generated by the fan assembly rotation, wind noise generated by airflow through the air vent, and noticeable sound from the resonance of internal components in traditional electric heaters during operation.

[0005] To solve the above-mentioned technical problems, this utility model provides a noise-reducing electric heater, comprising: a heater housing, an electric heating element disposed inside the heater housing, a fan assembly disposed on one side of the electric heating element, an exhaust port disposed at one end of the heater housing located on the fan assembly, an air inlet disposed at the opposite end of the heater housing located on the exhaust port, both the exhaust port and the air inlet being provided with a sound-absorbing cotton layer and a honeycomb sound-absorbing grille, and a wave-shaped guide groove disposed on the inner wall of the heater housing.

[0006] As further explained, the fan assembly includes a heat insulation plate, the fan assembly is mounted on an electric heating element via the heat insulation plate, a motor is provided at one end of the heat insulation plate, a rotating shaft is provided at one end of the motor, and fan blades are provided at one end of the rotating shaft.

[0007] As further explained, the sound-absorbing cotton layer and the honeycomb sound-absorbing grille are located on the inner and outer sides of the heater housing, respectively.

[0008] As further explained, the upper end of the heater housing is provided with several heat outlet holes.

[0009] Compared with the prior art, the beneficial effects of this utility model are:

[0010] 1. The sound-absorbing cotton layer and honeycomb sound-absorbing grille at the exhaust and air inlet form a double-layer sound-absorbing structure. The sound-absorbing cotton layer absorbs noise energy through its porous structure, while the honeycomb sound-absorbing grille consumes sound energy through multiple reflections of sound waves within the grille cavity, effectively reducing mechanical noise generated by the fan assembly and wind noise generated by airflow through the air inlet. The wave-shaped guide grooves on the inner wall of the heater shell change the airflow direction, disrupting the regular fluctuations of airflow and reducing the generation of eddies, further weakening wind noise and resonance sound from internal components. Compared with traditional heaters, the operating noise can be reduced by 20-30dB, meeting the usage requirements of quiet places such as bedrooms and offices.

[0011] 2. The fan assembly is mounted on the heating element via a heat insulation plate. The heat insulation plate can effectively block the heat generated by the heating element from being transferred to the fan assembly, preventing the motor from overheating and causing performance degradation or accelerated aging, thus extending the service life of the fan assembly. At the same time, reducing the impact of heat on the motor also helps to reduce abnormal vibration and noise caused by motor overheating, ensuring the stability of the heater's operation.

[0012] 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.

[0013] 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

[0014] 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.

[0015] Figure 1 This is a schematic diagram of the preferred three-dimensional structure of the present invention;

[0016] Figure 2 This is a preferred cross-sectional view of the present invention.

[0017] In the picture:

[0018] 1 Heater housing, 101 Corrugated air guide groove, 2 Heating element, 3 Fan assembly, 301 Heat insulation board, 302 Motor, 303 Shaft, 304 Fan blade, 4 Exhaust vent, 5 Air inlet, 6 Sound-absorbing cotton layer, 7 Honeycomb sound-absorbing grille, 8 Heat outlet hole. Detailed Implementation

[0019] 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.

[0020] Reference Figure 1-2 A noise-reducing electric heater includes: a heater housing 1, an electric heating element 2 inside the heater housing 1, a fan assembly 3 on one side of the electric heating element 2, an exhaust port 4 at one end of the heater housing 1 located on the fan assembly 3, and an air inlet 5 at the opposite end of the heater housing 1 located on the exhaust port 4. Both the exhaust port 4 and the air inlet 5 are provided with a sound-absorbing cotton layer 6 and a honeycomb sound-absorbing grille 7. The inner wall of the heater housing 1 is provided with a corrugated guide groove 101. The sound-absorbing cotton layer 6 and the honeycomb sound-absorbing grille 7 provided on the exhaust port 4 and the air inlet 5 form a double-layer sound-absorbing structure. The sound-absorbing cotton layer 6 absorbs noise energy through its porous structure, and the honeycomb sound-absorbing grille 7 consumes sound energy by reflecting sound waves multiple times within the grille cavity, effectively reducing the mechanical noise generated by the fan assembly 3 and the wind noise generated by airflow through the vent. The wave-shaped guide groove 101 on the inner wall of the heater housing 1 changes the airflow direction, disrupts the regular fluctuation of airflow, reduces the generation of eddies, and further weakens the wind noise and resonance sound of internal components. Compared with traditional heaters, the operating noise can be reduced by 20-30dB, meeting the usage requirements of quiet places such as bedrooms and offices.

[0021] like Figure 2 As shown, the fan assembly 3 includes a heat insulation plate 301. The fan assembly 3 is mounted on the heating element 2 via the heat insulation plate 301. A motor 302 is located at one end of the heat insulation plate 301, a rotating shaft 303 is located at one end of the motor 302, and a fan blade 304 is located at one end of the rotating shaft 303. The operation of the motor 302 drives the rotating shaft 303 to rotate, which in turn drives the fan blade 304 to rotate, realizing the intake and exhaust of air. The heat insulation plate 301 serves to insulate against heat, preventing the heat generated by the heating element 3 from being directly transferred to the motor 302, thus avoiding abnormal vibration or damage to the motor 302 due to excessive temperature.

[0022] like Figure 1-2As shown, the sound-absorbing cotton layer 6 and the honeycomb sound-absorbing grille 7 are located on the inner and outer sides of the heater housing 1, respectively. The sound-absorbing cotton layer 6 is located on the inner side of the heater housing 1, which can directly absorb the noise generated inside the heater housing 1; the honeycomb sound-absorbing grille 7 is located on the outer side of the heater housing 1, which further dissipates and reflects the noise transmitted from inside the heater housing 1 to the outside, reducing the transmission of noise to the outside. The sound-absorbing cotton layer 6 and the honeycomb sound-absorbing grille 7 are respectively set on the inner and outer sides, forming a multi-layer noise reduction structure, which greatly improves the noise reduction effect and can more effectively reduce the noise generated by the heater during operation, reducing interference with the surrounding environment.

[0023] like Figure 1 As shown, the upper end of the heater housing 1 is provided with several heat outlet holes 8. The arrangement of the heat outlet holes 8 allows the air heated by the electric heating element 2 to be distributed more evenly to the surrounding space, improving the heating effect and expanding the heating range.

[0024] All components selected in this application (parts whose specific structures are not described) are general standard parts or parts known to those skilled in the art, and their structures and principles can be obtained by those skilled in the art through technical manuals.

[0025] This knowledge can be obtained through conventional experimental methods.

[0026] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0027] In addition, in the various embodiments of this utility model, each functional unit can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0028] 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. A noise-reducing electric heater, characterized in that, include: The heater housing (1) is provided with an electric heating element (2) inside the heater housing (1). A fan assembly (3) is provided on one side of the electric heating element (2). An exhaust port (4) is provided at one end of the heater housing (1) located on the fan assembly (3). An air inlet (5) is provided at the opposite end of the exhaust port (4). Both the exhaust port (4) and the air inlet (5) are provided with a sound-absorbing cotton layer (6) and a honeycomb sound-absorbing grille (7). A wave-shaped guide groove (101) is provided on the inner wall of the heater housing (1).

2. The noise-reducing electric heater as described in claim 1, characterized in that, The fan assembly (3) includes a heat insulation plate (301). The fan assembly (3) is mounted on the heating element (2) through the heat insulation plate (301). A motor (302) is provided at one end of the heat insulation plate (301). A rotating shaft (303) is provided at one end of the motor (302). A fan blade (304) is provided at one end of the rotating shaft (303).

3. The noise-reducing electric heater as described in claim 1, characterized in that, The sound-absorbing cotton layer (6) and the honeycomb sound-absorbing grille (7) are located on the inner and outer sides of the heater housing (1), respectively.

4. The noise-reducing electric heater as described in claim 1, characterized in that, The upper end of the heater housing (1) is provided with several heat outlet holes (8).

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