A cooling structure for an electric water bottle

Abstract

This utility model relates to a cooling structure for an electric water bottle. The electric water bottle includes an outer shell and an inner liner disposed within the outer shell. The cooling structure includes an upper air duct and a lower air duct disposed between the outer shell and the inner liner. Fans are respectively installed at the air inlets of the upper and lower air ducts. A partition is disposed between the outer shell and the inner liner. The partition separates the space between the outer shell and the inner liner, forming an upper cooling space connected to the upper air duct and a lower cooling space connected to the lower air duct. This utility model, by setting independent upper and lower air ducts, drives airflow to remove heat from the inner liner within the upper and lower cooling spaces respectively. The two air ducts can drive airflow to more evenly cover the surface of the inner liner, reducing cooling dead zones and improving cooling efficiency. The coordinated arrangement of the two fans also increases the total airflow through the inner liner, enhancing cooling efficiency.

Description

Technical Field

[0001] This utility model relates to the field of household appliance technology, and in particular to a cooling structure for electric water bottles. Background Technology

[0002] Electric water heaters can boil water and keep it at a constant temperature so that users can drink hot water. They are a common small household appliance.

[0003] However, boiled water cannot be drunk immediately; it needs to cool to a suitable temperature. Natural cooling of hot water is slow, requiring a considerable wait for users to reach a comfortable drinking temperature. Some electric kettles have built-in fans that blow air directly onto the inner liner for cooling. However, direct fan cooling is less effective at cooling boiling water, resulting in low efficiency and negatively impacting the user experience.

[0004] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this disclosure, and therefore may include information that does not constitute prior art known to those skilled in the art. Utility Model Content

[0005] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a cooling structure for electric water bottles to improve the cooling efficiency of the internal hot water.

[0006] The technical solution of this utility model is as follows: A cooling structure for an electric water bottle, the electric water bottle including an outer shell and an inner liner disposed within the outer shell, the cooling structure comprising: An upper air duct and a lower air duct are disposed between the outer shell and the inner liner; fans are respectively installed at the air inlets of the upper air duct and the lower air duct; A partition is disposed between the outer shell and the inner liner; The partition separates the space between the outer shell and the inner liner, forming an upper air-cooled space that is separately connected to the upper air duct and a lower air-cooled space that is separately connected to the lower air duct.

[0007] A further technical solution is that the upper air duct is provided with a first upper air outlet and a second upper air outlet facing each other, and the first upper air outlet and the second upper air outlet are connected to the upper air-cooling space; the lower air duct is provided with a first lower air outlet and a second lower air outlet facing each other, and the first lower air outlet and the second lower air outlet are connected to the lower air-cooling space.

[0008] A further technical solution is that the ratio of the air outlet area of ​​the first upper air outlet to the air outlet area of ​​the second upper air outlet is between 2 and 5; the ratio of the air outlet area of ​​the first lower air outlet to the air outlet area of ​​the second lower air outlet is between 2 and 5.

[0009] A further technical solution is that the volume of the updraft duct is 1.2-2 times the volume of the downdraft duct.

[0010] A further technical solution is that an upper external air vent connecting the upper air-cooling space and a lower external air vent connecting the lower air-cooling space are opened on the outer shell.

[0011] A further technical solution is that the upper air duct connects to the upper air-cooled space near the lower air-cooled space; the lower air duct connects to the lower air-cooled space near the upper air-cooled space; the distance between the upper external air outlet and the top of the outer casing can be 50mm; and the distance between the lower external air outlet and the bottom of the inner surface of the outer casing can be 25mm.

[0012] A further technical solution is that the distance between the upper external air outlet and the first upper air outlet or the second upper air outlet is inversely proportional to the air outlet area of ​​the first upper air outlet or the second upper air outlet; the distance between the lower external air outlet and the first lower air outlet or the second lower air outlet is inversely proportional to the air outlet area of ​​the first lower air outlet or the second lower air outlet.

[0013] A further technical solution is that the fan is mounted on the bottom cover of the outer casing; a ventilation opening is provided on the bottom cover; a bracket is provided on the bottom cover to support the fan, and the bracket has a hollow structure.

[0014] A further technical solution is that an upper air hood and a lower air hood are provided inside the outer shell; the upper air hood is hollow to form an upper air duct, and the lower air hood is hollow to form a lower air duct.

[0015] A further technical solution is that an upper temperature sensor is installed in the upper air-cooling space; and a lower temperature sensor is installed in the lower air-cooling space.

[0016] The beneficial technical effects of this utility model are as follows: (1) The cooling structure of the electric water bottle in this utility model has an upper air duct and a lower air duct arranged around the inner liner. The upper and lower air ducts are equipped with independent fans, which drive airflow to remove the heat of the inner liner in the upper and lower air-cooling spaces respectively. The two air ducts can drive the airflow to cover the surface of the inner liner more evenly, reduce the dead zone of air cooling and improve the air cooling efficiency. The coordinated arrangement of the two fans also increases the total air volume blown through the inner liner and enhances the air cooling efficiency. Moreover, the heat in the inner liner is not evenly distributed. The water vapor distance near the top makes the temperature higher at that position. At this time, the setting of two air ducts can be used to adjust the flow rate of the gas in the air ducts to adapt to the temperature of different positions, ensure sufficient cooling of the high-temperature area, and further ensure the overall cooling efficiency of the electric water bottle. The above-mentioned electric water bottle cooling structure is composed of fans, air ducts and partitions, and has a simple structure and low cost.

[0017] (2) Furthermore, the upper air duct and the lower air duct are respectively opened with two air outlets facing each other. The two air outlets supply air at the same time, so as to form a ring airflow around the inner liner and let the airflow flow through the entire circumferential surface of the inner liner to carry away the heat of the inner liner.

[0018] (3) Further, the ratio of the air outlet area between the first upper air outlet and the second upper air outlet, and the ratio of the air outlet area between the first lower air outlet and the second lower air outlet, can be between 2 and 5 to form a configuration of main air outlet + auxiliary air outlet. Among them, the air outlet with the larger air outlet area is the main air outlet, and the air outlet with the smaller air outlet area is the auxiliary air outlet. Taking the first upper air outlet as the main air outlet and the second upper air outlet as the auxiliary air outlet as an example, the first upper air outlet has a large air outlet area and the flow rate of the ejected gas is low, which can flow slowly along the inner liner to fully absorb heat and remove most of the heat of the inner liner. At the same time, the air outlet direction of the second upper air outlet is opposite to that of the first upper air outlet, which can eject airflow to remove the heat of the inner liner surface away from the first upper air outlet, and avoid insufficient airflow blowing on the inner liner away from the first upper air outlet. The first upper air outlet and the second upper air outlet work together to blow out airflow around the inner liner to efficiently remove the heat of the inner liner. Attached Figure Description

[0019] Figure 1 A three-dimensional structural schematic diagram of an electric water bottle cooling structure according to an embodiment of the present disclosure is shown.

[0020] Figure 2 A cross-sectional view of an electric water bottle cooling structure according to an embodiment of the present disclosure is shown at point AA.

[0021] Figure 3 The diagram shows a three-dimensional view of the cooling structure of an electric water bottle according to an embodiment of the present disclosure, with the outer casing removed, on the side closest to the main view.

[0022] Figure 4 A three-dimensional structural diagram of the support, upper shroud, and lower shroud in an electric water bottle cooling structure according to an embodiment of the present disclosure is shown.

[0023] Figure 5 A bottom view schematic diagram of a cooling structure for an electric water bottle according to an embodiment of the present disclosure is shown.

[0024] Figure 6 The diagram shows a three-dimensional view of the cooling structure of an electric water bottle according to an embodiment of the present disclosure, with the outer casing removed, on the side closest to the rear view.

[0025] Marked in the attached diagram: 1. Outer shell; 11. Upper air vent; 12. Lower air vent; 2. Inner liner; 3. Upper air duct; 31. Upper air-cooled space; 32. Upper air cover; 33. First upper air outlet; 34. Second upper air outlet; 4. Lower air duct; 41. Air inlet; 42. Lower air-cooled space; 43. Lower air cover; 44. First lower air outlet; 45. Second lower air outlet; 5. Bottom cover; 51. Ventilation opening; 6. Bracket; 61. Fan; 7. Partition; 71. Upper temperature sensor; 72. Lower temperature sensor; 8. Top cover. Detailed Implementation

[0026] To make the objectives, features, and advantages of this utility model more apparent and understandable, please refer to the accompanying drawings. It should be noted that the structures, proportions, sizes, etc., depicted in the accompanying drawings are merely for illustrative purposes and to aid those skilled in the art in understanding and reading the content disclosed herein. They are not intended to limit the implementation conditions of this utility model and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to the size, without affecting the effects and objectives achieved by this utility model, should still fall within the scope of the technical content disclosed in this utility model.

[0027] In the description of this utility model, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, 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 limitations on this utility model.

[0028] Figure 1 A three-dimensional structural schematic diagram of an electric water bottle cooling structure according to an embodiment of the present disclosure is shown. Figure 2 A cross-sectional view at point A is shown of an electric water bottle cooling structure according to an embodiment of this disclosure. Please refer to... Figure 1 and Figure 2A cooling structure for an electric water bottle is disclosed. The electric water bottle includes an outer shell 1, an inner liner 2 disposed within the outer shell 1, and a top cover 8 covering the outer shell 1. The top cover 8 seals the inner liner 2 inside the outer shell 1. The cooling structure includes an upper air duct 3, a lower air duct 4, and a partition 7. The upper air duct 3 and the lower air duct 4 are disposed between the outer shell 1 and the inner liner 2. Fans 61 are respectively installed at the air inlets 41 of the upper air duct 3 and the lower air duct 4. The partition 7 is disposed between the outer shell 1 and the inner liner 2. The partition 7 separates the space between the outer shell 1 and the inner liner 2, forming an upper air-cooling space 31 that is separately connected to the upper air duct 3 and a lower air-cooling space 42 that is separately connected to the lower air duct 4. The two independent air ducts can drive airflow to more evenly cover the surface of the inner liner 2, reducing air-cooling dead zones and improving air-cooling efficiency. The coordinated arrangement of the two fans 61 also increases the total airflow blowing through the inner liner 2, further enhancing the air-cooling efficiency. Furthermore, the heat within the inner liner 2 is not uniformly distributed; water vapor is more concentrated near the top, resulting in a higher temperature at that location. Therefore, by arranging two air ducts along the axis of the inner liner 2, the airflow rate within the ducts can be adjusted to adapt to the different temperatures at different locations, ensuring sufficient cooling of the high-temperature areas and guaranteeing the overall cooling efficiency of the electric water bottle. In some embodiments, three or more air-cooling spaces can be arranged along the axis of the inner liner 2, each individually connected to a fan 61, to further subdivide the cooling area on the surface of the inner liner 2. This application does not limit the number of cooling spaces.

[0029] Figure 3 The diagram shows a three-dimensional view of the cooling structure of an electric water bottle according to an embodiment of the present disclosure, with the outer casing removed, on the side closest to the main view. Figure 4 A three-dimensional structural diagram of the support, upper fan shroud, and lower fan shroud in an electric water bottle cooling structure according to an embodiment of this disclosure is shown. Please refer to... Figure 2 , Figure 3 and Figure 4 The upper air duct 3 has a first upper air outlet 33 and a second upper air outlet 34 facing each other, which connect to the upper air-cooling space 31. The lower air duct 4 has a first lower air outlet 44 and a second lower air outlet 45 facing each other, which connect to the lower air-cooling space 42. The two air outlets deliver air simultaneously to form a ring-shaped airflow around the inner liner 2, allowing the airflow to flow over the entire circumferential surface of the inner liner 2 and carry away the heat of the inner liner 2.

[0030] Preferably, the ratio of the air outlet area of ​​the first upper air outlet 33 to the air outlet area of ​​the second upper air outlet 34 is between 2 and 5. Similarly, the ratio of the air outlet area of ​​the first lower air outlet 44 to the air outlet area of ​​the second lower air outlet 45 is between 2 and 5, forming a configuration of a main air outlet + auxiliary air outlet. The air outlet with the larger air outlet area is the main air outlet, and the air outlet with the smaller air outlet area is the auxiliary air outlet. Taking the first upper air outlet 33 as the main air outlet and the second upper air outlet 34 as the auxiliary air outlet as an example: The first upper air outlet 33 has a large air outlet area and a low air velocity, allowing the gas to flow slowly along the inner liner 2 and fully absorb heat, carrying away most of the heat from the inner liner 2. Simultaneously, the air outlet direction of the second upper air outlet 34 is opposite to that of the first upper air outlet 33, allowing the airflow to carry away heat from the surface of the inner liner 2 away from the first upper air outlet 33, preventing insufficient airflow from affecting the inner liner 2 located away from the first upper air outlet 33. The first upper air outlet 33 and the second upper air outlet 34 work together to blow airflow around the inner liner 2, efficiently removing heat from the inner liner 2. Furthermore, the air outlet area of ​​the first upper air outlet 33 is more than twice that of the second upper air outlet 34, preventing the airflow from being too small to effectively circulate air around the inner liner 2 over a long distance. The air outlet area of ​​the first upper air outlet 33 is less than five times that of the second upper air outlet 34, preventing excessive airflow from the first upper air outlet 33 from interfering with the flow of gas ejected from the second upper air outlet 34 and affecting its normal operation.

[0031] More preferably, the distance between the upper external air vent 11 and the first upper air outlet 33 or the second upper air outlet 34 is inversely proportional to the air outlet area of ​​the first upper air outlet 33 or the second upper air outlet 34. The distance between the lower external air vent 12 and the first lower air outlet 44 or the second lower air outlet 45 is inversely proportional to the air outlet area of ​​the first lower air outlet 44 or the second lower air outlet 45. That is, the air outlet area of ​​each air outlet is flexibly adjusted according to the distance parameter. When the air outlet is far from the external air outlet, the airflow from the air outlet to the external air outlet is longer and the wind resistance is greater. At this time, the airflow of the air outlet is increased to ensure that there is enough airflow through the inner liner 2 to be discharged from the external air outlet and remove heat.

[0032] Figure 5 A bottom view schematic diagram of an electric water bottle cooling structure according to an embodiment of this disclosure is shown. Please refer to... Figure 1 , Figure 2 and Figure 5 An upper air vent 11 connecting the upper air-cooled space 31 and a lower air vent 12 connecting the lower air-cooled space 42 are provided on the outer shell 1. After the airflow absorbs heat through the surface of the inner liner 2, it can be discharged from the outer shell 1 along the upper air vent 11 and the lower air vent 12, taking away the heat from the inner liner 2.

[0033] Preferably, the first upper air outlet 33 and the second upper air outlet 34 are located near the lower air-cooled space 42 in the upper air-cooled space 31, that is, the upper air duct 3 connects the upper air-cooled space 31 near the lower air-cooled space 42. The first lower air outlet 44 and the second lower air outlet 45 are located near the lower air-cooled space 42 in the upper air-cooled space 31, that is, the lower air duct 4 connects the lower air-cooled space 42 near the upper air-cooled space 31. In some embodiments, the distance between the upper external air outlet 11 and the top of the outer casing 1 can be 50 mm, and the upper external air outlet 11 is located near the top of the outer casing 1. The distance between the lower external air outlet 12 and the bottom of the outer casing 1 can be 25 mm, and the lower external air outlet 12 is located near the bottom of the outer casing 1. The airflow ejected from the first upper air outlet 33 and the second upper air outlet 34 flows in both radial and axial directions around the inner liner 2, fully flowing over the surface of the inner liner 2 to absorb heat before being discharged from the upper external air outlet 11. The airflow ejected from the first lower air outlet 44 and the second lower air outlet 45 flows in both radial and axial directions around the inner liner 2, fully covering the surface of the inner liner 2 to absorb heat before being discharged from the lower outer air outlet 12, ensuring that the airflow passes over the entire surface of the inner liner 2. The top of the outer shell 1 has a mounting cavity for installing the upper cover and top cover 8. The distance from the inner liner 2 to the top of the outer shell 1 is greater than the distance from the inner liner 2 to the bottom of the outer shell 1. Therefore, the distance from the upper outer air outlet 11 to the top of the outer shell 1 is greater than the distance from the lower outer air outlet 12 to the bottom of the outer shell 1, also ensuring that the airflow passes over the entire surface of the inner liner 2.

[0034] More preferably, a vent 51 is provided on the bottom cover 5, and a fan 61 is mounted on the bottom cover 5 of the outer casing 1. After the fan 61 is started, low-temperature air from the external environment is introduced into the outer casing 1 through the vent 51. A bracket 6 is provided on the bottom cover 5 to support the fan 61. The position of the bracket 6 for mounting the fan 61 can correspond to the shape of the fan 61 to ensure stable installation of the fan 61. The bracket 6 has a hollow structure to facilitate airflow.

[0035] Figure 6 This diagram shows a perspective view of the cooling structure of an electric water bottle according to an embodiment of the present disclosure, with the outer casing removed, on the side closest to the rear view. Please refer to... Figure 2 , Figure 4 and Figure 6An upper air hood 32 and a lower air hood 43 are provided inside the outer casing 1. The upper air hood 32 is hollow, forming an upper air duct 3, and the lower air hood 43 is hollow, forming a lower air duct 4. Correspondingly, a fan 61 is provided inside the upper air hood 32 and the lower air hood 43, respectively. A first upper air outlet 33 and a second upper air outlet 34 are provided on the upper air hood 32, and a first lower air outlet 44 and a second lower air outlet 45 are provided on the lower air hood 43. When the upper air-cooled space 31 and the lower air-cooled space 42 are arranged along the axis of the inner liner 2, the height of the upper air hood 32 is higher than the height of the lower air hood 43, so that the upper air hood 32 can extend into the upper air-cooled space 31. Among them, the upper air hood 32 is taller and has a larger volume, and the volume of the upper air duct 3 can be 1.2-2 times the volume of the lower air duct 4. The volume of the upper air duct 3 is limited to less than twice the volume of the lower air duct 4 to avoid excessive airflow difference between the upper air-cooling space 31 and the lower air-cooling space 42, resulting in uneven cooling between the upper and lower parts of the inner liner 2.

[0036] Preferably, an upper temperature sensor 71 is installed in the upper air-cooled space 31. Both the upper temperature sensor 71 and the lower temperature sensor 72 can be commercially available Omron E52-P6DY type resistance sensors. A lower temperature sensor 72 is installed in the lower air-cooled space 42. This monitors the temperature within the upper air-cooled space 31 and the lower air-cooled space 42, and adjusts the speed of the fan 61 connected to the upper and lower air-cooled spaces 31 and 42 in real time based on the temperature, controlling the temperature difference between the upper and lower air-cooled spaces 31 and 42 to uniformly cool the hot water in the inner tank 2. The upper temperature sensor 71 and the lower temperature sensor 72 can be centrally mounted on the partition 7 for convenient centralized wiring.

[0037] The specific workflow of this utility model is as follows: When cooling the hot water inside the inner tank 2, the user starts all the fans 61. The fans 61 draw air into the outer shell 1 through the vent 51. Part of the air flows into the lower cooling space 42 along the lower air duct 4, the first lower air outlet 44, and the second lower air outlet 45. The airflow into the lower cooling space 42 absorbs heat over the surface of the inner tank 2 and is finally discharged from the outer shell 1 through the lower outer air outlet 12. Another portion of the air flows into the upper cooling space 31 along the upper air duct 3, the first upper air outlet 33, and the second upper air outlet 34. The airflow into the upper cooling space 31 absorbs heat over the surface of the inner tank 2 and is finally discharged from the outer shell 1 through the upper outer air outlet 11. During the cooling process, the upper temperature sensor 71 and the lower temperature sensor 72 monitor the temperature of the upper cooling space 31 and the lower cooling space 42 to adjust the fan speed accordingly.

[0038] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0039] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A cooling structure for an electric water bottle, the electric water bottle comprising an outer shell and an inner liner disposed within the outer shell, characterized in that, The cooling structure of the electric water bottle includes: An upper air duct and a lower air duct are disposed between the outer shell and the inner liner; fans are respectively installed at the air inlets of the upper air duct and the lower air duct; A partition is disposed between the outer shell and the inner liner; The partition separates the space between the outer shell and the inner liner, forming an upper air-cooled space that is separately connected to the upper air duct and a lower air-cooled space that is separately connected to the lower air duct.

2. The electric water bottle cooling structure as described in claim 1, characterized in that: The upper air duct has a first upper air outlet and a second upper air outlet facing each other, and the first upper air outlet and the second upper air outlet are connected to the upper air-cooled space; the lower air duct has a first lower air outlet and a second lower air outlet facing each other, and the first lower air outlet and the second lower air outlet are connected to the lower air-cooled space.

3. The electric water bottle cooling structure as described in claim 2, characterized in that: The ratio of the air outlet area of ​​the first upper air outlet to that of the second upper air outlet is between 2 and 5; the ratio of the air outlet area of ​​the first lower air outlet to that of the second lower air outlet is between 2 and 5.

4. The electric water bottle cooling structure as described in claim 1, characterized in that: The volume of the upwind duct is 1.2 to 2 times the volume of the downwind duct.

5. The electric water bottle cooling structure as described in claim 2, characterized in that: The outer casing has an upper external air vent that connects to the upper air-cooled space and a lower external air vent that connects to the lower air-cooled space.

6. The electric water bottle cooling structure as described in claim 5, characterized in that: The upper air duct connects to the upper air-cooled space near the lower air-cooled space; the lower air duct connects to the lower air-cooled space near the upper air-cooled space; the distance between the upper external air outlet and the top of the outer casing can be 50mm; the distance between the lower external air outlet and the bottom of the inner surface of the outer casing can be 25mm.

7. The electric water bottle cooling structure as described in claim 5, characterized in that: The distance between the upper external air vent and the first upper air outlet or the second upper air outlet is inversely proportional to the air outlet area of ​​the first upper air outlet or the second upper air outlet; the distance between the lower external air vent and the first lower air outlet or the second lower air outlet is inversely proportional to the air outlet area of ​​the first lower air outlet or the second lower air outlet.

8. The electric water bottle cooling structure as described in claim 1, characterized in that: The fan is mounted on the bottom cover of the housing; a ventilation opening is provided on the bottom cover; a bracket is provided on the bottom cover to support the fan, and the bracket has a hollow structure.

9. The electric water bottle cooling structure as described in claim 1, characterized in that: The outer casing is provided with an upper air hood and a lower air hood; the upper air hood is hollow to form an upper air duct, and the lower air hood is hollow to form a lower air duct.

10. The electric water bottle cooling structure as described in claim 1, characterized in that: An upper temperature sensor is installed in the upper air-cooled space; a lower temperature sensor is installed in the lower air-cooled space.

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