Electric kettle with built-in liquid cooling heat exchange tube

Abstract

The utility model discloses an electric kettle with a built-in liquid cooling heat exchange tube, which comprises a kettle body, the kettle body comprises a kettle body part and a base part arranged at the bottom of the kettle body part, and a hot water chamber is arranged in the kettle body part; a liquid cooling conveying pipe of the refrigeration component is annularly arranged on the peripheral side of the hot water cavity, the liquid cooling conveying pipe extends to the kettle body part from the base part of the electric kettle body and at least covers part of the kettle body part, and the problem that plain boiled water is not cooled uniformly in an existing electric kettle is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of electric kettles, in particular to an electric kettle with a built-in liquid-cooling heat exchange tube. Background Art

[0002] At present, an electric kettle includes a kettle body, a kettle cover, a bottom cover and other structures, wherein the kettle body has an upper opening and can be made of stainless steel or other materials. When the water boiled in the electric kettle is at a high temperature, it cannot be drunk immediately. Especially in summer, if you want to drink cool boiled water, you need to pour out the boiled water and then put it in a refrigerator for refrigeration, which is very inconvenient to use, especially for students or people without refrigerators.

[0003] In response to the above problems, the inventor disclosed a fast and efficient cooling electric kettle with authorization announcement number CN204765025U on November 18, 2015. The fast and efficient cooling electric kettle can separate the cooling device and the heating device so that they will not affect each other. At the same time, it can also allow the boiled water to cool down quickly. However, after long-term use, it was found that because the heat in the water is released through the bottom, the water inside the electric kettle will cool down in advance, forming a local cooling phenomenon, so that the cooling of the hot water is not uniform. Utility Model Content

[0004] In order to overcome at least one defect of the above-mentioned prior art, the utility model provides an electric kettle with a built-in liquid-cooled heat exchange tube, which solves the problem of uneven cooling of boiled water in the existing electric kettle.

[0005] The technical solution adopted by the utility model to solve the problem is:

[0006] An electric kettle with a built-in liquid-cooled heat exchange tube, comprising:

[0007] A kettle body, the kettle body comprising a kettle body and a base arranged at the bottom of the kettle body, wherein a hot water chamber is arranged inside the kettle body;

[0008] A refrigeration component, wherein a liquid cooling delivery pipe of the refrigeration component is arranged around the circumference of the hot water chamber, and the liquid cooling delivery pipe extends from the base of the hot water kettle body to the kettle body and covers at least a portion of the kettle body.

[0009] In some embodiments of the present invention, the liquid cooling delivery pipe spirally extends along a first direction B on the kettle body, and the first direction B is arranged opposite to a depth direction of the hot water chamber.

[0010] In some embodiments of the present invention, the liquid cooling delivery pipe includes a liquid cooling input pipe and a liquid cooling output pipe, the liquid cooling input pipe and the liquid cooling output pipe are stacked and arranged, and the liquid cooling input pipe and the liquid cooling output pipe are connected.

[0011] In some embodiments of the present invention, the liquid cooling delivery pipe is defined as a thread unit along the circumference of the hot water chamber, and two adjacent thread units are spaced apart in the first direction B, or two adjacent thread units are in contact and independent of each other.

[0012] In some embodiments of the present invention, the liquid cooling delivery pipe includes a main input pipe, a main output pipe and a plurality of heat exchange branch pipes, the main input pipe and the main output pipe are both extended along the depth direction of the hot water chamber, and the plurality of heat exchange branch pipes are arranged along the depth direction of the hot water chamber, and each of the heat exchange branch pipes is connected to the main input pipe and the main output pipe.

[0013] In some embodiments of the present invention, two adjacent heat exchange branch pipes are arranged at intervals, or two adjacent heat exchange branch pipes are in contact and independent of each other.

[0014] In some embodiments of the present invention, a liquid cooling heat exchange chamber is provided on the side wall of the kettle body, and the liquid cooling delivery pipe is detachably connected to the interior of the liquid cooling heat exchange chamber.

[0015] In some embodiments of the present invention, the liquid cooling delivery pipe is integrally formed on the side wall of the kettle body.

[0016] In some embodiments of the present invention, the liquid-cooling delivery pipe has a liquid-cooling input end and a liquid-cooling output end, and the base portion is provided with an output docking interface connected to the liquid-cooling input end, an input docking interface connected to the liquid-cooling output end, an output external connection end connected to the input docking interface, and an input external connection end connected to the output docking interface, and the base portion and the pot body portion are detachably installed.

[0017] In some embodiments of the present invention, the base portion and the pot body portion are fixedly connected, and the liquid cooling delivery pipe passes through the base portion and extends out of the base portion.

[0018] In summary, the utility model provides an electric kettle with a built-in liquid-cooled heat exchange tube, which has the following technical effects:

[0019] The liquid cooling delivery pipe of the refrigeration component is cleverly used to surround the periphery of the hot water chamber to guide the cooling liquid to cool the periphery of the hot water chamber and the liquid in the hot water chamber. The heat possessed by the liquid in the hot water chamber will be able to be evenly diffused to the periphery of the hot water chamber for transfer and exchange, solving the problem of uneven cooling of boiled water in existing electric kettles.

[0020] In addition, the liquid cooling delivery pipe extends from the base of the kettle body to the kettle body and covers at least part of the kettle body. The heat exchange area formed by the cooling liquid between the surrounding side of the hot water chamber and the liquid in the hot water chamber will be much larger than the heat exchange area formed between the side of the hot water chamber close to the base and the liquid in the hot water chamber. This can greatly improve the cooling efficiency, reduce the time the human body waits for the liquid in the hot water chamber to cool down, and ensure that the human body can drink liquid within a specified temperature range (such as water, milk, etc.) more quickly. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is the overall structural diagram of an electric kettle with a built-in liquid-cooled heat exchange tube according to the utility model;

[0022] Figure 2 This is a first structural schematic diagram of the pot body in the utility model;

[0023] Figure 3 This is a second structural schematic diagram of the pot body in the utility model;

[0024] Figure 4 This is an exploded structural diagram of an electric kettle with a built-in liquid-cooled heat exchange tube according to the utility model;

[0025] Figure 5 for Figure 4 A local enlarged schematic diagram of point A in the middle.

[0026] Icons: 1- kettle body, 11- kettle body, 12- base, 13- hot water chamber, 14- liquid-cooled heat exchange chamber, 151- input docking port, 152- output docking port, 153- input external connection end, 154- output external connection end, 21- liquid-cooling delivery pipe, 211- liquid-cooling input pipe, 212- liquid-cooling output pipe, 213- threaded unit, 214- liquid-cooling input end, 215- liquid-cooling output end, 216- liquid-cooling flow guide pipe. DETAILED DESCRIPTION

[0027] For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0028] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc. indicating directions or positional relationships are based on the directions 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 device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0030] Please combine the specific Figures 1 to 4 As shown, the utility model discloses an electric kettle with a built-in liquid-cooled heat exchange tube, comprising a kettle body 1 and a refrigeration component, wherein the kettle body 1 comprises a kettle body 11 and a base 12 arranged at the bottom of the kettle body 11, and a hot water chamber 13 is arranged inside the kettle body 11.

[0031] It can be understood that the kettle body 1 also includes a control circuit, a heating component for providing heat to the hot water chamber 13 to heat the liquid (such as water, milk, beverage, etc.) inside the hot water chamber 13, a handle portion arranged on the kettle body 11, and a kettle lid component capable of sealing the hot water chamber 13, wherein the control circuit includes but is not limited to a temperature control element, a dry burning protection element, a short circuit protection element and a main control chip, and the heating component and the above-mentioned refrigeration component are electrically connected to the control circuit.

[0032] It should be noted that since the handle, lid, heating components and control circuit are all prior arts in the field, and the handle, lid, heating components and control circuit are not the improved core of the present invention, the handle, lid, heating components and control circuit are not shown in the accompanying drawings, nor are they described in detail in the specification.

[0033] When the heating element heats the liquid in the hot water chamber 13 to a boiling state, the temperature of the boiling liquid is high and cannot be drunk directly, especially in hot summer or when people are thirsty. Therefore, the inventor provides a preferred solution to enable the temperature of the liquid in the hot water chamber 13 to quickly drop to a specified or appropriate temperature range.

[0034] In this embodiment, the liquid cooling delivery pipe 21 of the refrigeration component is arranged around the hot water chamber 13, so that the heat inside the hot water chamber 13 can be evenly transported to the surrounding side of the hot water chamber 13, and heat exchange is performed with the cooling liquid (such as water, or other liquid medium used for cooling) inside the liquid cooling delivery pipe 21, avoiding the problem of uneven cooling caused by the liquid only being locally cooled at the bottom of the hot water chamber 13.

[0035] Furthermore, if Figure 3 As shown, the liquid cooling delivery pipe 21 extends from the base 12 of the kettle body 1 to the kettle body 11, and covers at least a portion of the kettle body 11. That is, the liquid cooling delivery pipe 21 can be extended from the base 12 of the kettle body 1 to the mouth of the kettle body 11, so that the liquid cooling delivery pipe 21 can cover the entire kettle body 11, so that when the liquid fills the entire hot water chamber 13, the maximum cooling efficiency can be achieved, and any amount of liquid can be cooled to the maximum extent.

[0036] Alternatively, the liquid cooling delivery pipe 21 can also be selected from the base portion 12 of the kettle body 1 to extend to the kettle mouth near the kettle body 11, then the liquid cooling delivery pipe 21 only covers part of the kettle body 11, and the coverage ratio between the liquid cooling delivery pipe 21 and the kettle body 11 is set according to the structural design or design requirements, such as the liquid cooling delivery pipe 21 covers half of the kettle body 11, or the liquid cooling delivery pipe 21 covers two-thirds of the kettle body 11. In this way, the heat exchange area between the liquid cooling delivery pipe 21 from the side of the kettle body 11 and the liquid will still be much larger than the heat exchange area formed between the bottom of the kettle body and the liquid, and can also effectively ensure the purpose of the liquid cooling delivery pipe 21 of the refrigeration component to quickly cool the liquid in the hot water chamber 13, and also reduce the production cost of the electric kettle with built-in liquid cooling heat exchange pipe.

[0037] As one of the preferred methods of this embodiment, please refer to Figure 1 and Figure 3 As shown, the liquid cooling delivery pipe 21 spirally extends in the kettle body 11 along a first direction B, and the first direction B is arranged opposite to the depth direction of the hot water chamber 13, that is, the first direction B is a direction extending from the bottom of the hot water chamber 13 toward the kettle mouth, which is conducive to configuring the liquid cooling delivery pipe 21 in the kettle body 11 and reducing the processing difficulty and cost.

[0038] Specifically, one end of the liquid cooling delivery pipe 21 is defined as the liquid cooling input end 214, and the other end of the liquid cooling delivery pipe 21 is defined as the liquid cooling output end 215. During cooling, the coolant is injected from the liquid cooling input end 214 and transported along the extension direction of the liquid cooling delivery pipe 21 to the liquid cooling output end 215 of the liquid cooling delivery pipe 21. In this way, the coolant is spirally transported along the first direction B from the side close to the base portion 12, so that the flow rate of the coolant is low and the flow distance of the coolant is long, that is, the heat exchange time between the coolant and the liquid in the hot water chamber 13 is long, and the heat exchange efficiency of the coolant per unit time is high.

[0039] As a further preferred method of this embodiment, please refer to Figure 3 , Figure 4 and Figure 5 As shown, the liquid cooling delivery pipe 21 includes a liquid cooling input pipe 211 and a liquid cooling output pipe 212. The liquid cooling input pipe 211 and the liquid cooling output pipe 212 are stacked and arranged, and the liquid cooling input pipe 211 and the outlet pipe 212 are connected to each other. Specifically, the end of the liquid cooling input pipe 211 near the pot mouth is connected to the end of the liquid cooling output pipe 212 near the pot mouth through the liquid cooling guide pipe 216, so that the cooling liquid is diverted from the liquid cooling input pipe 211 to the inside of the liquid cooling output pipe 212.

[0040] An unexpected effect is that the coolant will flow in a spiral along the depth direction of the hot water chamber 13, and the coolant will cool the liquid in the hot water chamber 13 again during the reflux process, achieving a double cooling effect, thereby further improving the cooling efficiency and cooling effect, and further improving the heat exchange efficiency of the coolant per unit time.

[0041] As a further preferred method of this embodiment, please refer to Figure 3 and Figure 4 As shown, the liquid cooling delivery pipe 21 is surrounded by a thread unit 213 along the circumference of the hot water chamber 13, and two adjacent thread units 213 are arranged at intervals in the first direction B. The pitch between two adjacent thread units 213 can be adjusted according to design requirements.

[0042] It should be noted that, in addition to two adjacent thread units 213 being arranged at intervals, two adjacent thread units 213 may also be in contact with each other and independent of each other.

[0043] As another preferred embodiment of the present invention, the liquid cooling delivery pipe 21 includes a main input pipe, a main output pipe and a plurality of heat exchange branch pipes. The main input pipe and the main output pipe are both extended along the depth direction of the hot water chamber 13. The plurality of heat exchange branch pipes are arranged along the depth direction of the hot water chamber 13, and each heat exchange branch pipe is connected to the main input pipe and the main output pipe.

[0044] Specifically, the end of the main input pipe close to the base portion 12 is defined as the liquid cooling input end 214, and the end of the main output pipe close to the base portion 12 is defined as the liquid cooling output end 215. During cooling, the cooling liquid is transported from the liquid cooling input end 214 along the extension direction of the main input pipe. At the same time, the cooling liquid will also be sequentially diverted to a number of heat exchange branch pipes, and finally converge into the main output pipe, and transported to the liquid cooling output end 215 along the main output pipe.

[0045] In this way, the coolant flowing in the main input pipe, the main output pipe and the plurality of heat exchange branch pipes can cool the liquid in the hot water chamber 13. Since each heat exchange branch pipe extends along the circumference of the hot water chamber 13, the heat of the liquid in the hot water chamber 13 can be evenly diffused to the circumference of the hot water chamber 13, and the problem of uneven cooling of boiled water in the existing electric kettle can be solved.

[0046] At the same time, through the cooperation between the main input pipe, the main output pipe and a plurality of heat exchange branch pipes, the liquid in the hot water chamber 13 can also be cooled quickly to ensure high cooling efficiency.

[0047] As a further preferred embodiment of the present invention, two adjacent heat exchange branch tubes are spaced apart, and the spacing between the two adjacent heat exchange branch tubes can be adjusted according to design requirements, or the two adjacent heat exchange branch tubes are in contact and independent of each other.

[0048] As one of the preferred methods of this embodiment, please refer to Figure 3 and Figure 4 As shown, the side wall of the pot body 11 is provided with a liquid cooling heat exchange chamber 14, that is, a space is formed between the hot water chamber 13 of the pot body 11 and the outer wall of the pot body 11, and the space is the liquid cooling heat exchange chamber 14 of the pot body 11. The liquid cooling delivery pipe 21 is detachably connected to the inside of the liquid cooling heat exchange chamber 14, which makes it easy to disassemble, assemble and replace the liquid cooling delivery pipe 21, which is beneficial to subsequent maintenance.

[0049] In addition to the above-mentioned connection method of the liquid cooling delivery pipe 21, as another preferred method of this embodiment, the liquid cooling delivery pipe 21 can also be integrally formed on the side wall of the kettle body 11. In this way, the liquid in the hot water chamber 13 can transfer heat to the cooling liquid in the liquid cooling delivery pipe 21 very stably, avoiding partial non-contact between the liquid cooling delivery pipe 21 and the side wall of the liquid cooling heat exchange chamber 14, which affects the heat exchange efficiency and cooling uniformity.

[0050] As a further preferred method of this embodiment, please refer to Figure 1 and Figure 2As shown, the base portion 12 is provided with an output docking port 152 that can be connected to the above-mentioned liquid-cooling input port 214 and an input docking port 151 that can be connected to the above-mentioned liquid-cooling output port 215, wherein the output docking port 152 and the input docking port 151 are preferably arranged on the top contact surface of the base portion 12. Further, the base portion 12 and the pot body portion 11 can be detachably installed, so when the pot body portion 11 is placed on the top of the base portion 12, the liquid-cooling input port 214 on the pot body portion 11 will be plugged into the output docking port 152 of the base portion 12, and the liquid-cooling output port 215 on the pot body portion 11 will be plugged into the input docking port 151 of the base portion 12.

[0051] In addition, the base portion 12 is also provided with an output external connection terminal 154 connected to the input docking port 151, and an input external connection terminal 153 connected to the output docking port 152. It can be understood that a base input tube and a base output tube can be configured inside the base portion 12, and the output docking port 152 is connected to the input external connection terminal 153 through the base input tube, and the input docking port 151 is connected to the output external connection terminal 154 through the base output tube. Then, the external coolant can flow through the input external connection terminal 153 and the output docking port 152 in sequence and be injected into the interior of the liquid cooling delivery pipe 21. The coolant carries the heat of the liquid and is then injected into the base portion 12 through the input docking port 151. Finally, the coolant will be output and released to the outside of the base portion 12 through the output external connection terminal 154 of the base portion 12.

[0052] Of course, a refrigeration element may also be configured inside the base 12 to lower the temperature of the coolant injected into the liquid cooling input end 214 of the liquid cooling delivery pipe 21, thereby forming a larger temperature difference between the coolant and the liquid, thereby better absorbing the heat of the liquid and achieving the best cooling effect.

[0053] It should also be noted that, in addition to the above-mentioned separation between the body 11 and the base 12, the body 11 and the base 12 can also be fixedly connected, and the fixed connection here can be selected as an integral molding, or the body 11 and the base 12 can be bolted, or the body 11 and the base 12 are welded. In this case, the liquid cooling delivery pipe 21 passes through the base 12 and extends out of the base 12, which can also ensure that the external coolant is injected into the liquid cooling delivery pipe 21, and the coolant carrying a large amount of heat is output to the outside of the base 12.

[0054] The technical means disclosed in the solution of the utility model are not limited to the technical means disclosed in the above-mentioned implementation mode, but also include technical solutions composed of any combination of the above technical features. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the utility model, and these improvements and modifications are also regarded as the protection scope of the utility model.

Claims

1. An electric kettle with a built-in liquid-cooled heat exchange tube, characterized in that: include: A kettle body, the kettle body comprising a kettle body and a base arranged at the bottom of the kettle body, wherein a hot water chamber is arranged inside the kettle body; A refrigeration component, wherein a liquid cooling delivery pipe of the refrigeration component is arranged around the circumference of the hot water chamber, and the liquid cooling delivery pipe extends from the base of the hot water kettle body to the kettle body and covers at least a portion of the kettle body.

2. The electric kettle with built-in liquid cooling heat exchange tube according to claim 1, characterized in that: The liquid cooling delivery pipe spirally extends along a first direction B on the kettle body, and the first direction B is arranged opposite to the depth direction of the hot water chamber.

3. The electric kettle with built-in liquid cooling heat exchange tube according to claim 2, characterized in that: The liquid cooling delivery pipe includes a liquid cooling input pipe and a liquid cooling output pipe. The liquid cooling input pipe is stacked with the liquid cooling output pipe, and the liquid cooling input pipe and the liquid cooling output pipe are connected.

4. The electric kettle with built-in liquid-cooled heat exchange tube according to claim 2 or 3, characterized in that: The liquid cooling delivery pipe is defined as a thread unit that circles around the circumference of the hot water chamber, and two adjacent thread units are spaced apart in the first direction B, or two adjacent thread units are in contact and independent of each other.

5. The electric kettle with built-in liquid cooling heat exchange tube according to claim 1, characterized in that: The liquid cooling delivery pipe includes a main input pipe, a main output pipe and a plurality of heat exchange branch pipes. The main input pipe and the main output pipe are both extended along the depth direction of the hot water chamber. The plurality of heat exchange branch pipes are arranged along the depth direction of the hot water chamber. Each of the heat exchange branch pipes is connected to the main input pipe and the main output pipe.

6. The electric kettle with built-in liquid cooling heat exchange tube according to claim 5, characterized in that: Two adjacent heat exchange branch pipes are arranged at intervals, or two adjacent heat exchange branch pipes are in contact and independent of each other.

7. The electric kettle with built-in liquid-cooled heat exchange tube according to claim 1, 2, 3, 5 or 6, characterized in that: The side wall of the pot body is provided with a liquid cooling heat exchange chamber, and the liquid cooling delivery pipe is detachably connected to the inside of the liquid cooling heat exchange chamber.

8. The electric kettle with built-in liquid-cooled heat exchange tube according to claim 1, 2, 3, 5 or 6, characterized in that: The liquid cooling delivery pipe is integrally formed on the side wall of the kettle body.

9. The electric kettle with built-in liquid-cooled heat exchange tube according to claim 1 or 2 or 3 or 5 or 6, characterized in that: The liquid-cooling delivery pipe has a liquid-cooling input end and a liquid-cooling output end. The base portion is provided with an output interface connected to the liquid-cooling input end, an input interface connected to the liquid-cooling output end, an output external connection end connected to the input interface, and an input external connection end connected to the output interface. The base portion and the pot body portion are detachably installed.

10. The electric kettle with built-in liquid-cooled heat exchange tube according to claim 1 or 2 or 3 or 5 or 6, characterized in that: The base portion and the pot body portion are fixedly connected, and the liquid cooling delivery pipe passes through the base portion and extends out of the base portion.

Images