Noise reduction spiral structure air duct

Abstract

The utility model discloses a noise reduction spiral structure air duct, relates to food blender field, including blender shell, the bottom surface of blender shell inside is fixedly equipped with spiral air duct and is located the motor subassembly right above spiral air duct, the bottom of motor subassembly is movably connected with the wind wheel that is located spiral air duct inner side, and the wind wheel is connected with the motor subassembly right above the spiral air duct. A sealing strip is attached to the top of the spiral air channel, and the spiral air channel is matched with the motor assembly and the stirrer shell to wrap the wind wheel. According to the utility model, the spiral air duct is arranged outside the wind wheel between the stirrer shell and the motor assembly, and the spiral air duct adopts a long spiral structure design, so that the length of the spiral air duct is increased in a limited space, the flowing time of air in the spiral air duct is effectively prolonged, and the length of a noise transmission path is increased; therefore, the transmission of noise of the machine can be effectively reduced, the bass effect of the machine is improved, and the user experience is improved.

Description

Technical Field

[0001] The utility model relates to the field of food mixers, in particular to a noise-reducing spiral structure air duct. Background Art

[0002] With the improvement of living standards, people have diversified requirements for food. Therefore, different cooking machines are designed on the market to achieve food diversification. Food blenders (soy milk machines, wall breaking machines) meet people's food needs to break and mix food. The working principle of the blender is that the blade at the bottom of the mixing cup rotates at high speed, and the food is repeatedly broken under the action of water flow. It has the advantages of low price, easy cleaning, and the ability to process a variety of foods.

[0003] Currently known food blenders are internally equipped with a motor with a fan. The rotation of the fan drives cold air to flow from the outside of the machine to the inside, and then the cold air is discharged from the machine through an air duct after cooling the motor. The air duct is a straight-out type and is relatively short, so that more noise from the motor is transmitted, reducing the user experience. Utility Model Content

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0005] A noise-reducing spiral structure air duct comprises an agitator shell, the bottom surface of the interior of the agitator shell having a spiral air duct and a motor assembly located directly above the spiral air duct fixedly mounted thereon, the bottom of the motor assembly being movably connected to a wind wheel located inside the spiral air duct, a sealing strip being attached to the top of the spiral air duct, and the spiral air duct cooperating with the motor assembly and the agitator shell to wrap around the wind wheel.

[0006] A further improvement of the technical solution of the utility model is that the spiral air duct includes a spiral portion and an air outlet, the spiral portion and the air outlet are fixedly connected, grooves are provided on the inner sides of the spiral portion and the air outlet, and a fixing ear is fixedly connected to the outer side of the air outlet.

[0007] A further improvement of the technical solution of the utility model is that the agitator shell includes a shell and a base, the shell and the base are fixedly connected, a mounting hole is arranged inside the base, the spiral air duct is arranged on the inner side of the mounting hole, the motor assembly is fixedly connected to the top of the mounting hole, and an air inlet is opened at the bottom of the base.

[0008] A further improvement of the technical solution of the utility model is that the spiral part includes inner and outer spiral retaining ribs, the outer and inner spiral retaining ribs are both connected to the air outlet, and the wind wheel is arranged on the inner side of the inner spiral retaining ribs.

[0009] A further improvement of the technical solution of the utility model is that: the air outlet is arranged in an outward fan shape, and a spoiler structure is arranged inside the air outlet.

[0010] A further improvement of the technical solution of the utility model is that the sealing strip can be made of sponge or silicone.

[0011] A further improvement of the technical solution of the utility model is that the spiral portion becomes larger as the dimension transitions toward the outside and the direction in which the spiral portion becomes larger is consistent with the direction of rotation of the wind wheel.

[0012] A further improvement of the technical solution of the utility model is that: three air inlets are provided in a ring shape.

[0013] Due to the adoption of the above technical solution, the utility model has achieved the following technical progress compared with the prior art:

[0014] The utility model provides a noise-reducing spiral structure air duct. The spiral air duct is arranged outside the wind wheel between the agitator housing and the motor assembly. The spiral air duct adopts a long spiral structure design to increase the length of the spiral air duct within a limited space, so that the air flow time in the spiral air duct is effectively prolonged, and the length of the noise propagation path is increased, thereby effectively reducing the propagation of machine noise, enhancing the bass effect of the machine, and improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the connection structure of the noise-reducing spiral structure air duct of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the agitator housing of the utility model;

[0017] Figure 3 It is a structural schematic diagram of the base of the utility model;

[0018] Figure 4 It is a structural schematic diagram of the spiral air duct of the utility model;

[0019] Figure 5 It is a schematic diagram of the position structure of the spiral air duct and the wind wheel of the utility model.

[0020] In the figure: 1. agitator shell; 11. shell; 12. base; 13. mounting hole; 14. air inlet; 2. spiral air duct; 21. spiral part; 211. outer spiral rib; 212. inner spiral rib; 22. air outlet; 23. groove; 24. fixing ear; 25. spoiler structure; 3. motor assembly; 4. wind wheel; 5. sealing strip. DETAILED DESCRIPTION

[0021] The utility model is further described in detail below:

[0022] like Figures 1 to 5 As shown, the utility model provides a noise-reducing spiral structure air duct, including an agitator housing 1, a spiral air duct 2 and a motor assembly 3 located directly above the spiral air duct 2 are fixedly installed on the bottom surface of the interior of the agitator housing 1, the bottom of the motor assembly 3 is movably connected to a wind wheel 4 located inside the spiral air duct 2, a sealing strip 5 is attached to the top of the spiral air duct 2, and the spiral air duct 2 cooperates with the motor assembly 3 and the agitator housing 1 to wrap the wind wheel 4.

[0023] By arranging a spiral air duct 2 outside the wind wheel 4 between the agitator housing 1 and the motor assembly 3, and adopting a long spiral structure design of the spiral air duct 2, the length of the spiral air duct 2 is increased in a limited space, so that the air flow time in the spiral air duct 2 is effectively extended, and the length of the noise propagation path is increased, thereby effectively reducing the propagation of machine noise, enhancing the bass effect of the machine, and improving the user experience.

[0024] like Figure 4 As shown, the spiral air duct 2 includes a spiral portion 21 and an air outlet 22 , the spiral portion 21 and the air outlet 22 are fixedly connected, a groove 23 is provided on the inner side of the spiral portion 21 and the air outlet 22 , and a fixing ear 24 is fixedly connected to the outer side of the air outlet 22 .

[0025] The spiral portion 21 is connected to the air outlet 22 , and a spiral channel 23 is formed between the spiral portion 21 and the air outlet 22 , so that the air flow time in the channel 23 is prolonged, thereby increasing the length of the noise propagation path and reducing the propagation of noise.

[0026] like Figure 2 As shown, the agitator housing 1 includes a shell 11 and a base 12, the shell 11 and the base 12 are fixedly connected, a mounting hole 13 is arranged inside the base 12, the spiral air duct 2 is arranged on the inner side of the mounting hole 13, the motor assembly 3 is fixedly connected to the top of the mounting hole 13, and an air inlet 14 is opened at the bottom of the base 12.

[0027] The motor assembly 3 is installed on the top of the installation hole 13 and the spiral air duct 2 is located between the base 12 and the motor assembly 3 to wrap the wind wheel 4, so that when the wind wheel 4 rotates, the air flows in the spiral air duct 2 to dissipate the heat of the motor assembly 3.

[0028] like Figure 4 As shown, the spiral portion 21 includes an inner spiral retaining rib 212 and an outer spiral retaining rib 211 arranged inside and outside. The outer spiral retaining rib 211 and the inner spiral retaining rib 212 are both connected to the air outlet 22 , and the wind wheel 4 is arranged on the inner side of the inner spiral retaining rib 212 .

[0029] The spiral portion 21 includes an outer spiral retaining rib 211 and an inner spiral retaining rib 212, which are connected to the air outlet 22 to form a spiral structure, which effectively prolongs the flow time of air and increases the length of the noise propagation path to reduce noise propagation.

[0030] like Figure 4 As shown, the air outlet 22 is arranged in an outward fan shape, and a spoiler structure 25 is arranged inside the air outlet 22 .

[0031] The air is disturbed and dispersed by arranging a spoiler structure 25 in the air outlet 22 to reduce the propagation of noise.

[0032] like Figure 3 As shown, the sealing strip 5 can be made of sponge or silicone.

[0033] The sealing strip 5 is located at the top of the spiral air duct 2 to form an air duct that wraps the wind wheel 4 and improves the sealing performance.

[0034] like Figure 5 As shown, the spiral portion 21 becomes larger toward the outer dimension transition and the direction in which the spiral portion 21 becomes larger is consistent with the rotation direction of the wind wheel 4 .

[0035] The spiral portion 21 and the wind wheel 4 turn in the same direction and the transition becomes wider and larger, thereby ensuring that the wind wheel 4 drives the air to flow in the spiral portion 21, and extending the flow time of the air in the spiral portion 21.

[0036] like Figure 3 As shown, three air inlets 14 are provided in a ring shape.

[0037] The upper air inlet 14 ensures that air is introduced and heat is dissipated when the wind wheel 4 rotates.

[0038] The following is a detailed description of the working principle of the noise-reducing spiral structure air duct.

[0039] like Figures 1 to 5 As shown, the wind wheel 4 connected to the motor assembly 3 is located on the inner side of the spiral air duct 2, and the spiral portion 21 is designed to have a long spiral structure including an outer spiral retaining rib 211 and an inner spiral retaining rib 212. When in use, air enters the spiral portion 21 through the air inlet 14 in cooperation with the spoiler structure 25 in the air outlet 22, and the length of the spiral portion 21 is increased in a limited space, so that the air flow time in the spiral air duct 2 is doubled, thereby effectively reducing the propagation of machine noise and greatly improving the bass effect of the machine.

[0040] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not deviate from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A noise-reducing spiral air duct, comprising an agitator housing (1), characterized in that: A spiral air duct (2) and a motor assembly (3) located directly above the spiral air duct (2) are fixedly installed on the bottom surface of the interior of the agitator housing (1); the bottom of the motor assembly (3) is movably connected to a wind wheel (4) located inside the spiral air duct (2); a sealing strip (5) is attached to the top of the spiral air duct (2); the spiral air duct (2) cooperates with the motor assembly (3) and the agitator housing (1) to form a wrap around the wind wheel (4); the spiral air duct (2) includes a spiral portion (21) and an air outlet (22); the spiral portion (21) and the air outlet (22) are fixedly connected; a groove (23) is provided on the inner side of the spiral portion (21) and the air outlet (22); and a fixing ear (24) is fixedly connected to the outer side of the air outlet (22).

2. The spiral structure air duct with noise reduction according to claim 1, characterized in that: The agitator housing (1) comprises a shell (11) and a base (12); the shell (11) and the base (12) are fixedly connected; a mounting hole (13) is provided inside the base (12); the spiral air duct (2) is arranged inside the mounting hole (13); the motor assembly (3) is fixedly connected to the top of the mounting hole (13); and an air inlet (14) is provided at the bottom of the base (12).

3. The noise-reducing spiral air duct according to claim 1, characterized in that: The spiral portion (21) comprises an inner spiral retaining rib (212) and an outer spiral retaining rib (211) arranged inside and outside, the outer spiral retaining rib (211) and the inner spiral retaining rib (212) are both connected to the air outlet (22), and the wind wheel (4) is arranged on the inner side of the inner spiral retaining rib (212).

4. The noise-reducing spiral air duct according to claim 1, characterized in that: The air outlet (22) is arranged in an outward fan shape, and a spoiler structure (25) is arranged inside the air outlet (22).

5. The noise-reducing spiral air duct according to claim 1, characterized in that: The sealing strip (5) may be made of sponge or silicone.

6. The noise-reducing spiral air duct according to claim 3, characterized in that: The spiral portion (21) becomes larger as its dimension transitions toward the outside, and the direction in which the spiral portion (21) becomes larger is consistent with the direction of rotation of the wind wheel (4).

7. The noise-reducing spiral air duct according to claim 2, characterized in that: The air inlets (14) are provided with three annular openings.

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