Stirring machine with noise reduction structure

Abstract

The utility model relates to the technical field of stirrers, in particular to a stirrer with a noise reduction structure, which comprises a shell formed by sequentially buckling a base, a protective shell and a protective cover from bottom to top, the upper surface of the base protrudes to form at least one air inlet cavity shell, and a noise reduction structure is detachably installed on the air inlet cavity shell. A plurality of air inlet holes communicating with the noise reduction structure are formed in the lower surface of the base and located below the air inlet cavity shell at equal intervals. An exhaust port is formed in a shell body of the protective shell; a driving mechanism and a directional heat dissipation mechanism are fixedly arranged at the center of the lower surface of the protective cover; the noise reduction structure comprises an air inlet restraining base installed on the top of the air inlet cavity shell in a buckled mode, and a noise reduction cavity is formed in the air inlet restraining base and the air inlet cavity shell. A plurality of air inlet pipes are arranged on the air inlet restraining base at equal intervals, and the air inlet pipes and the air inlet holes are arranged in a staggered mode. According to the utility model, the noise generated during the operation of the stirrer can be reduced, so that the use experience of a user is improved, and the noise pollution to the surrounding environment is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of mixers, in particular to a mixer with a noise reduction structure. Background Art

[0002] A food blender is a kitchen appliance that is used to mix, stir, cut or grind a variety of ingredients. Its working principle is to quickly rotate and cut the ingredients in the container through the built-in rotating blade or blender to achieve the effect of mixing, stirring or crushing.

[0003] Current food mixers are mainly composed of a mixing barrel, a base and a barrel cover, wherein a mixing head connected to the base is provided at the bottom of the mixing barrel. When working, the mixing head is driven by the base to rotate in the mixing barrel, thereby achieving mixing, stirring or crushing of ingredients.

[0004] However, when the motor installed in the base is working, in order to dissipate the heat of the motor, the outside air is usually sucked into the base through the fan blades to replace the hot air in the base, thereby completing the heat dissipation. During the heat dissipation process, when the motor driving the fan blades and the mixing head is started, the rotor, stator and other components inside it will produce vibration and sound. This sound is one of the main sources of noise when the mixer is working. Since the heat dissipation effect needs to be guaranteed, the noise cannot be reduced by sealing, resulting in the problem of high noise when the mixer is working. It does not have a low-noise working state and has low practicality. Utility Model Content

[0005] The purpose of the utility model is to provide a mixer with a noise reduction structure, which can reduce the noise generated by the mixer during operation, thereby improving the user experience and reducing noise pollution to the surrounding environment.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] A mixer with a noise reduction structure, comprising a housing formed by a base, a protective shell and a protective cover buckled in sequence from bottom to top;

[0008] The upper surface of the base is convexly formed with at least one air inlet cavity shell, and a noise reduction structure is detachably mounted on the air inlet cavity shell; the lower surface of the base is concavely formed with a groove below the air inlet cavity shell, and a plurality of air inlet holes connected to the noise reduction structure are equidistantly opened in the groove;

[0009] The shell of the protective shell is provided with an exhaust port;

[0010] A driving mechanism is fixedly provided at the center of the lower surface of the protective cover, and a directional heat dissipation mechanism is sleeved on the driving mechanism;

[0011] The noise reduction structure comprises an air intake restraint seat, which is buckled and installed on the top of the air intake chamber shell, and a noise reduction cavity is formed between the air intake restraint seat and the air intake chamber shell;

[0012] The air intake restraint seat is provided with a plurality of circular holes at equal intervals, and air intake pipes are fixedly arranged in the plurality of circular holes, and the plurality of air intake pipes and the plurality of air intake holes are arranged in a staggered manner.

[0013] Preferably, the air inlet pipe comprises an air outlet section, a restraining section and an air inlet section from top to bottom;

[0014] The diameter of the constraining section is smaller than the diameter of the air outlet section and the diameter of the air inlet section.

[0015] Preferably, the diameter of the air outlet section gradually decreases from an end away from the constraining section to an end close to the constraining section.

[0016] Preferably, the diameter of the air inlet section gradually decreases from an end away from the constraining section to an end close to the constraining section.

[0017] Preferably, a positioning key is provided on the air intake chamber shell, and a positioning groove matching the positioning key is centrally provided on one side of the air intake restraint seat.

[0018] Preferably, the driving mechanism includes a motor, which is fixedly mounted at the center of the bottom end of the protective cover, and a radiator is provided on the motor, one end of the motor is fixedly mounted with fan blades arranged in the directional heat dissipation mechanism, and the other end of the motor passes through the protective cover and is fixedly mounted with a transmission head.

[0019] Preferably, a double-layer noise reduction shell A is provided on one side of the base close to the exhaust port, and a vortex inlet flow channel A is formed in the double-layer noise reduction shell A.

[0020] Preferably, the directional heat dissipation mechanism comprises a guide shell and a guide seat;

[0021] The guide shell is sleeved on the radiator, and the top of the guide shell is detachably connected to the lower surface of the protective cover;

[0022] The deflector seat is fixedly installed at the bottom end of the deflector shell, and a double-layer noise reduction shell B matching the double-layer noise reduction shell A is installed in the deflector seat;

[0023] When the double-layer noise reduction shell A and the double-layer noise reduction shell B are installed in cooperation, a vortex inlet flow passage B connected to the vortex inlet flow passage A is formed in the double-layer noise reduction shell B, and the vortex inlet flow passage B is connected to the exhaust port.

[0024] Preferably, a plurality of spoiler columns are provided on a side of the vortex inlet flow passage B away from the guide shell.

[0025] Preferably, a mounting seat is provided on a side of the protective shell away from the exhaust port, and a control panel is fixedly installed in the mounting seat.

[0026] One of the above technical solutions has the following beneficial effects:

[0027] (1) Significant noise reduction effect: Through the staggered arrangement of the air inlet holes and the air inlet pipes and the barrier effect of the noise reduction chamber, this blender can significantly reduce the air intake noise and motor noise during the heat dissipation process, providing users with a quieter use environment.

[0028] (2) Reasonable structure: The noise reduction structure can be detachably installed on the air intake housing, which is convenient for cleaning and maintenance. At the same time, the design of the air intake hole and the air intake pipe also ensures sufficient air intake to ensure the heat dissipation effect.

[0029] (3) Easy to use: This mixer dissipates heat through natural convection, without the need for additional heat dissipation equipment or cooling systems, reducing the cost of use and the difficulty of maintenance. At the same time, the exhaust port design of the protective shell also facilitates the discharge of heat dissipation air. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0031] Figure 2 It is a schematic diagram of the internal structure of the base and the protective shell in the utility model in a matched state;

[0032] Figure 3 It is a schematic diagram of the internal structure of the base and the noise reduction structure in the utility model in a matched state;

[0033] Figure 4 It is a partial structural schematic diagram of the base and the noise reduction structure in the utility model in a cross-sectional state;

[0034] Figure 5 It is a schematic diagram of the utility model being disassembled when viewed from above;

[0035] Figure 6 It is a schematic diagram of the structure of the protective cover and the driving mechanism in the utility model in a matched state;

[0036] Figure 7 It is a schematic diagram of the disassembly of the protective cover and the driving mechanism in the utility model when viewed from above.

[0037] In the accompanying drawings: 1. base; 101. air intake cavity shell; 102. groove; 103. air intake hole; 104. noise reduction cavity; 105. positioning key; 106. double-layer noise reduction shell A; 107. vortex inlet flow channel A; 2. protective shell; 201. exhaust port; 3. protective cover; 4. control panel; 5. noise reduction structure; 501. air intake constraint seat; 502. air intake pipe; 503. air outlet section; 504. constraint section; 505. air intake section; 506. positioning groove; 6. driving mechanism; 601. motor; 602. radiator; 603. fan blade; 604. transmission head; 7. directional heat dissipation mechanism; 701. guide shell; 702. guide seat; 703. double-layer noise reduction shell B; 704. vortex inlet flow channel B; 705. spoiler column. DETAILED DESCRIPTION

[0038] The technical solution of the utility model is further explained below with reference to the accompanying drawings and through specific implementation methods.

[0039] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0040] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, the meaning of "plurality" is two or more.

[0041] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] like Figure 1-7 As shown, it comprises a housing formed by a base 1, a protective shell 2 and a protective cover 3 buckled together from bottom to top;

[0043] The upper surface of the base 1 is convexly formed with at least one air inlet cavity shell 101, and the air inlet cavity shell 101 is detachably mounted with a noise reduction structure 5; the lower surface of the base 1 is located below the air inlet cavity shell 101 and is concavely formed with a groove 102, and a plurality of air inlet holes 103 connected to the noise reduction structure 5 are equidistantly opened in the groove 102;

[0044] The shell of the protective shell 2 is provided with an exhaust port 201;

[0045] A driving mechanism 6 is fixedly provided at the center of the lower surface of the protection cover 3, and a directional heat dissipation mechanism 7 is sleeved on the driving mechanism 6;

[0046] The noise reduction structure 5 includes an air intake constraint seat 501, which is buckled and installed on the top of the air intake chamber shell 101, and a noise reduction chamber 104 is formed between the air intake constraint seat 501 and the air intake chamber shell 101;

[0047] The air intake restraint seat 501 is provided with a plurality of circular holes at equal intervals, and an air intake pipe 502 is fixedly disposed in each of the circular holes, and the air intake pipes 502 and the air intake holes 103 are arranged alternately.

[0048] When the driving mechanism 6 is working, it draws external air into the noise reduction chamber 104 through a plurality of air inlet holes 103, and then enters the shell through a plurality of air inlet pipes 502 in the air intake constraint seat 501, thereby displacing the hot air in the shell to achieve heat dissipation. In the process of heat dissipation, the air entering the noise reduction chamber 104 through the air inlet hole 103, when flowing into the air inlet pipe 502, the air inlet pipe 502 and the air inlet hole 103 are staggered to extend the flow distance of the air flow, effectively reducing the noise of the air intake, and through the setting of the noise reduction chamber 104, the noise of the motor 601 can be blocked from transmitting from the inside to the outside, effectively optimizing the noise emitted by the motor 601 when working. The air that has undergone noise reduction treatment then enters the interior of the mixer shell through the air inlet pipe 502, displacing the hot air inside, and is discharged through the exhaust port 201 of the protective shell 2. In this process, the noise reduction chamber 104 can also effectively block the noise generated by the motor in the driving mechanism 6 from propagating from the inside to the outside, further reducing the noise level.

[0049] To further illustrate, the air inlet pipe 502 includes an air outlet section 503, a restraining section 504 and an air inlet section 505 from top to bottom;

[0050] The diameter of the constraining section 504 is smaller than the diameter of the air outlet section 503 and the diameter of the air inlet section 505 .

[0051] To further explain, the diameter of the air outlet section 503 gradually decreases from an end away from the constraining section 504 to an end close to the constraining section 504 .

[0052] To further explain, the diameter of the air inlet section 505 gradually decreases from an end away from the constraining section 504 to an end close to the constraining section 504 .

[0053] When the blender starts working, external air enters the noise reduction chamber 104 through the air inlet 103 below the base 1. The air then enters the interior of the blender housing through the air inlet pipe 502. In the air inlet pipe 502, the air first passes through the air inlet section 505. Due to the design of the gradually decreasing diameter of the air inlet section 505, the air flow rate begins to slow down. Next, the air enters the constraint section 504. Since the diameter of the constraint section 504 is smaller than that of the air inlet section 505 and the air outlet section 503, the air flow rate is further limited. Finally, the air flows quickly and silently into the interior of the blender housing through the air outlet section 503.

[0054] The noise reduction structure utilizes the diameter changes of the air inlet section 505, the restraining section 504 and the air outlet section 503 in the air inlet pipe 502 to reduce the noise of the incoming air flow, thereby further improving the noise reduction effect.

[0055] For further explanation, a positioning key 105 is disposed on the air intake chamber housing 101 , and a positioning groove 506 for matching with the positioning key 105 is centrally opened on one side of the air intake restraint seat 501 .

[0056] When the noise reduction structure 5 needs to be installed on the air intake chamber housing 101, the user first aligns the positioning groove 506 of the air intake constraint seat 501 with the positioning key 105 on the air intake chamber housing 101, and then slowly pushes the air intake constraint seat 501 in until the positioning groove 506 is completely fitted on the positioning key 105. This design ensures the precise alignment between the air intake constraint seat 501 and the air intake chamber housing 101, effectively preventing misalignment and deviation during the installation process, and preventing leakage or noise problems caused by improper installation during the noise reduction process.

[0057] To further explain, the driving mechanism 6 includes a motor 601, which is fixedly installed at the center of the bottom end of the protective cover 3, and a radiator 602 is provided on the motor 601, one end of the motor 601 is fixedly installed with a fan blade 603 provided in the directional heat dissipation mechanism 7, and the other end of the motor 601 passes through the protective cover 3 and is fixedly installed with a transmission head 604.

[0058] For further explanation, a double-layer noise reduction shell A106 is provided on one side of the base 1 close to the exhaust port 201, and a vortex inlet flow passage A107 is formed in the double-layer noise reduction shell A106.

[0059] To further illustrate, the directional heat dissipation mechanism 7 includes a guide shell 701 and a guide seat 702;

[0060] The guide shell 701 is sleeved on the radiator 602, and the top of the guide shell 701 is detachably connected to the bottom surface of the protective cover 3;

[0061] The deflector seat 702 is fixedly installed at the bottom end of the deflector shell 701, and a double-layer noise reduction shell B703 matching the double-layer noise reduction shell A106 is installed in the deflector seat 702;

[0062] When the double-layer noise reduction shell A106 and the double-layer noise reduction shell B703 are installed in cooperation, a vortex inlet flow passage B704 connected to the vortex inlet flow passage A107 is formed in the double-layer noise reduction shell B703, and the vortex inlet flow passage B704 is connected to the exhaust port 201.

[0063] For further explanation, a plurality of spoiler columns 705 are provided on a side of the vortex inlet flow passage B704 away from the guide shell 701 .

[0064] Specifically, when the motor 601 drives the fan blades 603 and the transmission head 604 to rotate, thereby driving the stirring head to stir the material through the transmission head 604, the airflow generated by the fan blades 603 is guided into the guide shell 701, and passes through the vortex inlet flow channel B704 of the double-layer noise reduction shell B703 and the vortex inlet flow channel A107 of the double-layer noise reduction shell A106. During the flow process, the spoiler column 705 disturbs the air, extending the flow distance of the air in the flow channel, thereby reducing the exhaust noise. At the same time, the heat generated by the motor 601 is discharged through the exhaust port 201 through the synergistic effect of the radiator 602 and the directional heat dissipation mechanism 7, and is effectively dissipated to the external environment, achieving the dual effects of noise reduction and heat dissipation.

[0065] For further explanation, a mounting seat is provided on a side of the protective shell 2 away from the exhaust port 201, and a control board 4 is fixedly installed in the mounting seat.

[0066] Specifically, the control board 4 serves as the "brain" of the blender, receives instructions from the user or other external devices, and controls the operation of the blender according to a preset program or real-time conditions. Through the design of the mounting base, the control board 4 is stably mounted on the non-exhaust side of the protective shell 2, away from heat and noise sources, ensuring a stable and reliable working environment, which not only improves the stability and service life of the blender, but also enhances its safety of use and convenience of maintenance.

[0067] The technical principle of the present invention is described above in combination with specific embodiments. These descriptions are only for explaining the principle of the present invention and cannot be interpreted as limiting the protection scope of the present invention in any way. Based on the explanations here, technicians in this field can think of other specific implementations of the present invention without creative work, and these equivalent variations or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A mixer with a noise reduction structure, characterized in that: It comprises an outer shell formed by a base (1), a protective shell (2) and a protective cover (3) buckled together in sequence from bottom to top; The upper surface of the base (1) is convexly formed with at least one air inlet cavity shell (101), and a noise reduction structure (5) is detachably mounted on the air inlet cavity shell (101); the lower surface of the base (1) is concavely formed below the air inlet cavity shell (101) to form a groove (102), and a plurality of air inlet holes (103) connected to the noise reduction structure (5) are equidistantly provided in the groove (102); The shell of the protective shell (2) is provided with an exhaust port (201); A driving mechanism (6) is fixedly provided at the center of the lower surface of the protective cover (3), and a directional heat dissipation mechanism (7) is sleeved on the driving mechanism (6); The noise reduction structure (5) comprises an air intake restraint seat (501), the air intake restraint seat (501) being buckled and mounted on the top of the air intake chamber shell (101), and a noise reduction chamber (104) is formed between the air intake restraint seat (501) and the air intake chamber shell (101); The air intake restraint seat (501) is provided with a plurality of circular holes at equal intervals, and an air intake pipe (502) is fixedly arranged in each of the circular holes, and the air intake pipes (502) and the air intake holes (103) are arranged in an alternating manner.

2. A mixer with a noise reduction structure according to claim 1, characterized in that: The air inlet pipe (502) comprises, from top to bottom, an air outlet section (503), a restraining section (504) and an air inlet section (505); The diameter of the constraining section (504) is smaller than the diameter of the air outlet section (503) and the diameter of the air inlet section (505).

3. A mixer with a noise reduction structure according to claim 2, characterized in that: The diameter of the air outlet section (503) gradually decreases from an end away from the constraining section (504) to an end close to the constraining section (504).

4. A mixer with a noise reduction structure according to claim 2, characterized in that: The diameter of the air inlet section (505) gradually decreases from an end away from the constraining section (504) to an end close to the constraining section (504).

5. The mixer with noise reduction structure according to claim 1, characterized in that: A positioning key (105) is provided on the air intake chamber housing (101), and a positioning groove (506) matching the positioning key (105) is centrally provided on one side of the air intake restraint seat (501).

6. The mixer with noise reduction structure according to claim 1, characterized in that: The driving mechanism (6) comprises a motor (601), the motor (601) being fixedly mounted at the center of the bottom end of the protective cover (3), and a heat sink (602) being sleeved on the motor (601), a fan blade (603) disposed in the directional heat dissipation mechanism (7) being fixedly mounted on one end of the motor (601), and the other end of the motor (601) passing through the protective cover (3) and being fixedly mounted with a transmission head (604).

7. A mixer with a noise reduction structure according to claim 6, characterized in that: A double-layer noise reduction shell A (106) is provided on one side of the base (1) close to the exhaust port (201), and a vortex inlet flow channel A (107) is formed in the double-layer noise reduction shell A (106).

8. The mixer with noise reduction structure according to claim 7, characterized in that: The directional heat dissipation mechanism (7) comprises a flow guide shell (701) and a flow guide seat (702); The guide shell (701) is sleeved on the radiator (602), and the top of the guide shell (701) is detachably connected to the lower surface of the protective cover (3); The guide seat (702) is fixedly installed at the bottom end of the guide shell (701), and a double-layer noise reduction shell B (703) matching the double-layer noise reduction shell A (106) is installed in the guide seat (702); When the double-layer noise reduction shell A (106) and the double-layer noise reduction shell B (703) are installed in cooperation, a vortex inlet flow passage B (704) connected to the vortex inlet flow passage A (107) is formed in the double-layer noise reduction shell B (703), and the vortex inlet flow passage B (704) is connected to the exhaust port (201).

9. A mixer with a noise reduction structure according to claim 8, characterized in that: A plurality of spoiler columns (705) are provided on a side of the vortex inlet flow passage B (704) away from the guide shell (701).

10. The mixer with noise reduction structure according to claim 1, characterized in that: A mounting seat is provided on a side of the protective shell (2) away from the exhaust port (201), and a control panel (4) is fixedly arranged in the mounting seat.

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