Silent milk shaker with temperature detection function

Abstract

The utility model discloses a mute milk shaker with temperature detection, which relates to the technical field of milk shakers, and comprises an upper shell, a lower shell, a roller, a control panel and a power panel, a brushless motor set is arranged in the lower shell, the brushless motor set is of an outer rotor motor structure and comprises a hollow stator shaft fixedly mounted on the lower shell and an outer rotor sleeved on the periphery of the stator shaft; the outer rotor is mounted on the lower air duct through a bearing; the lower air duct is fixedly connected with the lower shell; the roller is coaxially sleeved outside the outer rotor, and a bottle claw fixing ring is arranged at the top of the roller; the temperature detection device comprises an NTC temperature sensor arranged at the top end of the stator shaft, a heat conduction cover and a wind shield, and the heat conduction cover and the roller rotate synchronously; according to the technical scheme, the design that the brushless motor directly drives the outer rotor is adopted, traditional belt wheel transmission is replaced, mechanical noise is effectively reduced, the temperature detection device adopts an indirect measurement method, namely, the NTC temperature sensor does not make direct contact with the milk bottle, and it is ensured that the temperature detection result is more accurate.

Description

TECHNICAL FIELD

[0001] The utility model relates to a milk shaker technical field especially, it relates to a kind of quiet milk shaker with temperature detection. BACKGROUND

[0002] The prior art milk shaker mainly exists following problem:

[0003] Traditional milk shaker usually adopts belt pulley transmission structure, this design can generate larger mechanical friction noise in the operation process, influence user's use experience.The existing temperature detection method usually directly contacts temperature probe with feeding bottle, this not only is susceptible to the influence from side hot airflow and leads to inaccurate measurement, and due to the rotation of feeding bottle and the immobility of temperature detection probe, the bottom of different shapes feeding bottle can cause abnormal sound phenomenon, and temperature reading deviation can also be caused by poor contact. UTILITY MODEL CONTENT

[0004] The utility model solves the technical problem in the prior art to provide a kind of quiet milk shaker with temperature detection to solve the problem in the background art.

[0005] Therefore, the utility model provides a kind of quiet milk shaker with temperature detection, including upper shell, lower shell, drum, control panel and power panel, the lower shell is equipped with brushless motor group, this brushless motor group is outer rotor motor structure, including fixed installation on the hollow stator shaft of lower shell and the outer rotor of stator shaft peripheral sleeve set;

[0006] The outer rotor is installed on the lower air duct by bearing, and the lower air duct is fixedly connected to the lower shell.

[0007] The drum is coaxially sleeved on the outside of the outer rotor, and a bottle grabbing fixing ring is provided on the top of the drum.

[0008] The temperature detection device includes an NTC temperature sensor provided at the top end of the stator shaft, a heat-conducting cover and a wind shield, the heat-conducting cover rotates synchronously with the drum, and the NTC temperature sensor is filled with heat-conducting silicone grease between the heat-conducting cover and the fixed NTC temperature sensor.

[0009] The wind shield is arranged around the heat-conducting cover to form an isolated cavity with the upper air duct.

[0010] Optionally, the stator shaft of the brushless motor group is a hollow tubular structure, and the NTC temperature sensor is spring-elastic supported inside the stator shaft, and the NTC temperature sensor can slide axially along the stator shaft.

[0011] Optionally, the heat-conducting cover is in the shape of a bowl, the inner surface of the heat-conducting cover is adapted to the shape of the bottom of the feeding bottle, the outer surface of the heat-conducting cover maintains a gap of 0.5-1mm with the wind shield, and the heat-conducting silicone grease is filled in the gap.

[0012] Optionally, the PTC heating module is distributed at the air inlet of the lower air duct, and the air outlet of the fan is opposite to the hollow structure at the bottom of the drum.

[0013] Optionally, the bearing is a ceramic hybrid bearing, which is fixed by a bearing cover plate, and a silica gel damping pad is arranged on the contact surface between the bearing cover plate and the lower air duct.

[0014] Optionally, a plurality of integrally formed bottle gripping belts are uniformly distributed in the inner periphery of the bottle gripping fixing ring, and the bottle gripping belts have downward arc-shaped bending structures.

[0015] Optionally, the control board is integrated with a temperature compensation module, which corrects the detection value of the NTC temperature sensor in real time according to the data of the environmental temperature sensor.

[0016] An electromagnetic shielding cover is arranged between the power board and the brushless motor group, and the shielding cover is filled with ferrite wave-absorbing material.

[0017] A power line is connected to the power input end of the power board.

[0018] From the above technical solutions, it can be seen that the embodiments of the utility model have the following advantages:

[0019] 1. The silent milk shaker with temperature detection of the utility model adopts the design of directly driving the outer rotor by the brushless motor, replaces the traditional belt wheel transmission, effectively reduces the mechanical noise. At the same time, the ceramic hybrid bearing is used and the silica gel damping pad is arranged, which further reduces the vibration and noise generated during operation, and provides a more quiet and comfortable use environment. The temperature detection device adopts an indirect measurement method, that is, the NTC temperature sensor does not directly contact the milk bottle, but transmits heat through the heat shield and heat-conducting silicone grease. In addition, the design of the wind shield can block the influence of the side hot air on the NTC temperature sensor, and ensure that the temperature detection result is more accurate. The design that the heat shield rotates synchronously with the drum avoids the abnormal sound caused by the rotation of the milk bottle, and ensures good heat conduction effect.

[0020] 2. The silent milk shaker with temperature detection of the utility model integrates the PTC heating module and the fan in the lower air duct, which can quickly and uniformly heat the liquid in the milk bottle and avoid the occurrence of local overheating. This design not only improves the heating efficiency, but also enhances the safety in use.

[0021] 3. The silent milk shaker with temperature detection of the utility model is provided with a plurality of integrally formed arc-shaped bottle gripping belts in the bottle gripping fixing ring, which can adapt to milk bottles of various sizes and firmly clamp to prevent deviation or falling off. The temperature compensation module integrated in the control board corrects the detection value of the NTC temperature sensor in real time according to the data of the environmental temperature sensor, which improves the accuracy and stability of temperature measurement.

[0022] These features and advantages of the present invention will be disclosed in detail in the following specific embodiments and accompanying drawings. Attached Figure Description

[0023] The present invention will be further described below with reference to the accompanying drawings:

[0024] Figure 1 This is a schematic diagram of the structure of this utility model;

[0025] Figure 2 This is a schematic cross-sectional view of the present invention.

[0026] Figure 3 This is another cross-sectional structural diagram of the present invention;

[0027] Figure 4 This is a schematic diagram of the brushless motor assembly and roller mounting structure of this utility model;

[0028] Figure 5 This utility model Figure 4 Schematic diagram of the mid-section structure.

[0029] Explanation of reference numerals in the attached diagram: 1. Upper shell; 2. Control board; 3. Bottle gripper ring; 4. Roller; 5. Upper air duct; 6. Windshield; 7. Heat conduction cover; 8. Bearing cover; 9. Bearing; 10. Lower air duct; 11. PTC heating module; 12. Fan; 13. NTC temperature sensor; 14. Power board; 15. Power cord; 16. Brushless motor assembly; 17. Lower shell; 18. Stator shaft; 19. Outer rotor; 20. Spring. Detailed Implementation

[0030] The technical solutions of the present utility model will be explained and described below with reference to the accompanying drawings. However, the following embodiments are only preferred embodiments of the present utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments in the implementation methods without creative effort are all within the protection scope of the present utility model.

[0031] The following describes in detail, with reference to the accompanying drawings, an embodiment of the present invention: a silent milk shaker with temperature detection. Example

[0032] For easier understanding, please refer to Figures 1 to 5 An embodiment of a silent milk shaker with temperature detection provided by this utility model includes an upper shell 1, a lower shell 17, a roller 4, a control board 2 and a power board 14. The lower shell 17 is provided with a brushless motor assembly 16, which is an external rotor motor structure, including a hollow stator shaft 18 fixedly installed on the lower shell 17 and an external rotor 19 sleeved around the stator shaft 18.

[0033] The outer rotor 19 is mounted on the lower air duct 10 via bearing 9, and the lower air duct 10 is fixedly connected to the lower shell 17.

[0034] The roller 4 is coaxially sleeved on the outside of the outer rotor 19, and its top is provided with a bottle gripping fixing ring 3;

[0035] The temperature detection device includes an NTC temperature sensor 13 located at the top of the stator shaft 18, a heat-conducting cover 7, and a windproof cover 6. The heat-conducting cover 7 rotates synchronously with the roller 4, and thermal grease is filled between it and the fixedly installed NTC temperature sensor 13.

[0036] The windshield 6 surrounds the heat-conducting cover 7, forming an isolation cavity with the upper air duct 5. The power input terminal of the power board 14 is connected to a power cord 15. The power cord 15 can supply power to the milk shaker.

[0037] It should be noted that a brushless motor assembly 16 is housed within the lower housing 17. This brushless motor adopts an external rotor motor structure, comprising a hollow stator shaft 18 fixedly mounted on the lower housing 17 and an external rotor 19 sleeved around it. By eliminating the traditional belt drive method, mechanical noise caused by belt pulley friction is effectively avoided, thus achieving a quiet operation. The wind deflector 6 surrounds the heat-conducting cover 7, forming an isolation cavity together with the upper air duct 5 to prevent lateral hot air from directly blowing onto the NTC temperature sensor 13 during heating, significantly improving temperature measurement accuracy.

[0038] In some embodiments, the stator shaft 18 of the brushless motor assembly 16 is a hollow tubular structure, with a spring 20 inside to elastically support the NTC temperature sensor 13, which can slide along the axial direction of the stator shaft 18.

[0039] It should be noted that the NTC temperature sensor 13 is fixedly installed on the top of the hollow stator shaft 18, and has an internal spring 20 for elastic support, allowing the probe to slide slightly along the axial direction to ensure good contact with the bottom of different types of baby bottles.

[0040] In some embodiments, the heat-conducting cover 7 has a bowl-shaped structure, with its inner surface adapted to the shape of the bottom of the bottle, and its outer surface maintaining a gap of 0.5-1mm with the windshield 6, and the thermal grease filling the gap.

[0041] It should be noted that the heat-conducting cover 7 has a bowl-shaped structure, with its inner surface conforming to the shape of the bottom of the bottle and rotating synchronously with the roller 4. The outer surface is filled with thermally conductive silicone grease between itself and the stationary NTC temperature sensor 13, improving heat conduction efficiency and reducing friction noise. The gap between the heat-conducting cover 7 and the windshield 6 is maintained at 0.5–1 mm to facilitate the filling of thermally conductive silicone grease and ensure airflow for heat dissipation.

[0042] In some embodiments, the lower air duct 10 integrates a PTC heating module 11 and a fan 12. The PTC heating module 11 is located at the air inlet of the lower air duct 10, and the air outlet of the fan 12 is directly opposite the hollow structure at the bottom of the roller 4.

[0043] It should be noted that a PTC heating module 11 and a fan 12 are integrated inside the lower air duct 10. The PTC heating module 11 is located at the air inlet and uses constant temperature characteristics to ensure the safety and stability of the heating process. The air outlet of the fan 12 faces the hollow structure at the bottom of the roller 4, which can evenly deliver hot air into the inside of the roller 4, accelerate the heating speed of the baby bottle and improve the heating uniformity.

[0044] In some embodiments, the bearing 9 is a ceramic hybrid bearing, which is pressed and fixed by the bearing cover plate 8, and the contact surface between the bearing cover plate 8 and the lower air duct 10 is provided with a silicone shock-absorbing pad.

[0045] It should be noted that the outer rotor 19 is mounted on the lower air duct 10 via a ceramic hybrid bearing 9 to improve rotational smoothness and reduce frictional noise. The bearing cover plate 8 presses and fixes the ceramic bearing, and silicone damping pads are placed on the contact surface to enhance vibration damping and noise reduction.

[0046] In some embodiments, the bottle gripping ring 3 has a plurality of integrally formed bottle gripping strips evenly distributed on its inner circumference, and the bottle gripping strips have a downward arc-shaped bending structure.

[0047] It should be noted that the top of the roller 4 is equipped with a bottle gripping fixing ring 3, which has multiple one-piece molded bottle gripping straps evenly distributed on its inner circumference. The ring has a downward arc-shaped bending structure, which can adapt to various sizes of baby bottles and firmly clamp them to prevent them from shifting or falling off during high-speed rotation.

[0048] In some embodiments, the control board 2 integrates a temperature compensation module, which performs real-time correction on the detection value of the NTC temperature sensor 13 based on data from the ambient temperature sensor. This integrated temperature compensation module further improves the accuracy of temperature measurement.

[0049] In some embodiments, an electromagnetic shielding cover is provided between the power board 14 and the brushless motor assembly 16, and the shielding cover is filled with ferrite absorbing material. The electromagnetic shielding cover between the power board 14 and the brushless motor assembly 16, filled with ferrite absorbing material, effectively suppresses electromagnetic interference and ensures stable operation of the equipment.

[0050] Working principle: When the user places the baby bottle into the roller 4, the multiple one-piece molded arc-shaped bottle grippers within the bottle gripping fixing ring 3 automatically clamp the bottom of the bottle, ensuring its stability and preventing deviation during rotation. The user can then start the device via the control panel, and the control system will drive the brushless motor assembly 16 to begin operation according to a preset program.

[0051] The brushless motor unit 16 adopts an external rotor motor structure. The stator shaft 18 is fixedly installed on the lower housing 17, while the external rotor 19 is mounted on the lower air duct 10 via a ceramic hybrid bearing 9 and is directly coaxially connected to the roller 4. By eliminating the traditional belt drive structure, noise caused by belt friction and vibration is avoided, thus achieving truly "silent" operation. The ceramic hybrid bearing, combined with silicone damping pads, further reduces mechanical vibration noise and improves the overall operational stability of the machine.

[0052] A PTC heating module 11 and a fan 12 are integrated inside the lower air duct 10. After being powered on, the PTC heating module 11 generates constant-temperature hot air, which is guided by the fan 12 and sent into the interior of the roller 4 through the hollow structure at the bottom of the roller 4 to evenly heat the bottle. This heating method is not only safe and reliable, but also heats up rapidly and distributes heat evenly, effectively avoiding local overheating.

[0053] The temperature detection device includes an NTC temperature sensor 13, a heat-conducting cover 7, and a windproof cover 6. Specifically, the NTC temperature sensor 13 is fixedly mounted on the top of the stator shaft 18 and can slide axially via a spring 20 to accommodate bottles of different heights.

[0054] The heat-conducting cover 7 has a bowl-shaped structure and rotates synchronously with the roller 4. Its inner surface is adapted to the shape of the bottom of the bottle, and its outer surface is filled with thermal grease between it and the NTC temperature sensor 13, forming a stable heat conduction path.

[0055] The windshield 6 surrounds the heat-conducting cover 7 and forms an isolation cavity with the upper air duct 5 to prevent hot air from the side from interfering with the NTC temperature sensor 13 during heating, thereby improving the temperature measurement accuracy.

[0056] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A silent milk shaker with temperature detection, comprising an upper shell (1), a lower shell (17), a roller (4), a control board (2), and a power board (14), characterized in that: The lower housing (17) is provided with a brushless motor assembly (16), which is an external rotor motor structure, including a hollow stator shaft (18) fixedly installed on the lower housing (17) and an external rotor (19) sleeved around the stator shaft (18). The outer rotor (19) is mounted on the lower air duct (10) via a bearing (9), and the lower air duct (10) is fixedly connected to the lower shell (17). The roller (4) is coaxially sleeved on the outside of the outer rotor (19), and a bottle gripping fixing ring (3) is provided on its top. The temperature detection device includes an NTC temperature sensor (13) located at the top of the stator shaft (18), a heat-conducting cover (7) and a windproof cover (6). The heat-conducting cover (7) rotates synchronously with the roller (4) and is filled with thermal grease between itself and the fixedly installed NTC temperature sensor (13). The windshield (6) is arranged around the heat-conducting cover (7) and forms an isolation cavity with the upper air duct (5).

2. The silent baby shaker with temperature detection according to claim 1, characterized in that: The stator shaft (18) of the brushless motor assembly (16) is a hollow tubular structure, and a spring (20) is provided inside to elastically support the NTC temperature sensor (13). The NTC temperature sensor (13) can slide along the axial direction of the stator shaft (18).

3. A silent milk shaker with temperature detection according to claim 1, characterized in that: The heat-conducting cover (7) has a bowl-shaped structure. Its inner surface is adapted to the shape of the bottom of the bottle, and its outer surface maintains a gap of 0.5-1mm with the windshield (6). The heat-conducting silicone grease is filled in the gap.

4. A silent milk shaker with temperature detection according to claim 1, characterized in that: The lower air duct (10) integrates a PTC heating module (11) and a fan (12). The PTC heating module (11) is located at the air inlet of the lower air duct (10), and the air outlet of the fan (12) is directly opposite the hollow structure at the bottom of the roller (4).

5. A silent milk shaker with temperature detection according to claim 1, characterized in that: The bearing (9) is a ceramic hybrid bearing, which is pressed and fixed by the bearing cover plate (8). The bearing cover plate (8) and the contact surface with the lower air duct (10) are provided with silicone shock-absorbing pads.

6. A silent baby shaker with temperature detection according to claim 1, characterized in that: The bottle gripping ring (3) has multiple integrally formed bottle gripping strips evenly distributed on its inner circumference, and the bottle gripping strips have a downward arc-shaped bending structure.

7. A silent milk shaker with temperature detection according to claim 1, characterized in that: The control board (2) integrates a temperature compensation module, which performs real-time correction on the detection value of the NTC temperature sensor (13) based on the ambient temperature sensor data.

8. A silent milk shaker with temperature detection according to claim 1, characterized in that: An electromagnetic shield is provided between the power board (14) and the brushless motor assembly (16), and the shield is filled with ferrite absorbing material.

9. A silent baby shaker with temperature detection according to claim 1, characterized in that: The power input terminal of the power board (14) is connected to a power cord (15).

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