Heating appliance

Abstract

The utility model discloses a heating appliance, which comprises a container, a heating element and a heating element, the heat transfer part is arranged on the outer side of the bottom of the container, a heat transfer cavity is formed by the heat transfer part and the bottom of the container, and the heat transfer cavity communicates with an inner cavity of the container; and the electric heating assembly is arranged on the outer side of the heat transfer part, and the electric heating assembly continuously heats the water entering the heat transfer cavity through the heat transfer part so as to heat the water in the container. The electric heating assembly is not welded to the container and not in direct contact with the container, the container is heated through the heat transfer piece, the situation that the container is oxidized and blackened due to high temperature of welding and long-term heating is avoided, and the appearance attractiveness is guaranteed.

Description

Technical Field

[0001] The present application relates to the technical field of liquid heating devices, and specifically to a heating device for heating water. Background Art

[0002] Heating appliances such as electric kettles, electric water cups, and electric hot pots are widely used for heating water, tea, coffee, soy milk, and other beverages because they can safely and quickly heat water or other liquids. Traditionally, these appliances use glass, ceramic, or stainless steel as containers for water. While glass and ceramic offer good corrosion resistance and high-temperature safety, they are brittle and easily break. While stainless steel is strong and unbreakable, it also lacks corrosion resistance and high-temperature safety.

[0003] The use of titanium metal to make water containers has many advantages; titanium metal has a low density, which makes titanium water containers light and easy to carry; at the same time, titanium is strong and wear-resistant, so it has good durability; titanium metal can resist corrosion from a variety of chemical substances, including acids, alkalis, salts, etc., so titanium water containers are not easily chemically eroded and have excellent corrosion resistance. This feature is especially important for water that may contain various minerals and acidic and alkaline substances; titanium metal has good compatibility with the human body and will not release harmful substances. Drinking water from titanium water containers is harmless to human health; titanium alloy has excellent anti-pollution properties. This anti-pollution property can reduce the growth of bacteria and algae for water containers and keep the water clean; titanium metal has good fatigue resistance, which means that it can be used in scenarios where water containers are repeatedly loaded and unloaded. Resisting the formation and expansion of cracks, it improves the service life and reliability of water containers; titanium alloy has a high strength-to-weight ratio, which means that while maintaining high strength, its density is much lower than many other metals, such as steel and iron, which allows titanium water containers to withstand greater pressure while remaining light; special patterns can be formed on the surface of titanium metal, which are not only decorative, but also can improve the surface properties of the material to a certain extent, making titanium water containers not only practical but also highly aesthetic; titanium metal can maintain stable performance in various environments, and its performance will not be affected whether in high or low temperature environments, which makes titanium water containers suitable for various environmental conditions; titanium metal is recyclable, which means that when the water container reaches its service life, the material can be recycled and reused, reducing the impact on the environment.

[0004] When titanium is used to make the water container in the electric water heating device, the electric heating component is fixed to the bottom of the container. The high temperature generated by the welding of the electric heating component and the long-term high temperature will cause the bottom of the container in direct contact with it to oxidize and blacken, affecting the appearance. Utility Model Content

[0005] The present application provides a heating device, aiming to at least improve one of the technical problems existing in the prior art.

[0006] In accordance with the above objectives, the present application provides a heating device, comprising:

[0007] A container, the interior of which is used to hold heated water;

[0008] a heat transfer element disposed on the outer side of the bottom of the container, wherein the heat transfer element and the bottom of the container form a heat transfer cavity, and the heat transfer cavity is communicated with the inner cavity of the container;

[0009] The electric heating component is arranged on the outer side of the heat transfer element. The electric heating component continuously heats the water entering the heat transfer cavity through the heat transfer element, thereby completing the heating of the water inside the container.

[0010] Furthermore, the heat transfer cavity includes an upper enclosing portion and a lower enclosing portion, the upper enclosing portion is located at the bottom of the container, and the lower enclosing portion is located at the heat transfer element, and the upper enclosing portion and / or the lower enclosing portion have a protrusion so that the upper enclosing portion and the lower enclosing portion are aligned and enclosed to form the heat transfer cavity.

[0011] Furthermore, the protrusion includes a first inner protrusion arranged on the upper enclosure portion toward the inner cavity of the container, and a first outer protrusion arranged on the lower enclosure portion away from the inner cavity of the container, and the outer edge of the first outer protrusion matches the inner edge of the first inner protrusion.

[0012] Furthermore, the upper enclosing portion is provided with at least one through hole to connect the heat transfer cavity with the inner cavity of the container.

[0013] Furthermore, when the upper enclosing portion has the protrusion, the through hole is arranged on the surface and / or side of the protrusion.

[0014] Furthermore, the lower enclosing portion is provided with an openable water guide hole, which is connected to an external pipeline to inject water into the interior of the container through the heat transfer cavity or discharge water from the interior of the container.

[0015] Furthermore, the electric heating assembly includes a heating tube and a heat sink, and the heat transfer element, the heat sink and the heating tube are arranged in sequence from top to bottom and are welded to each other.

[0016] Furthermore, the heat sink is provided with a temperature detection hole, and the temperature sensing probe passes through the temperature detection hole and contacts the heat transfer element.

[0017] Furthermore, the heat transfer element and the container are laser welded or bonded with an adhesive.

[0018] Furthermore, the container is made of titanium; or the container and the heat transfer element are made of titanium.

[0019] The present application has the following beneficial effects: the electric heating component is not welded to the container, nor is it in direct contact with the container, but heats the container through the heat transfer element, avoiding the oxidation and blackening of the container caused by welding and long-term heating, thereby ensuring an aesthetically pleasing appearance; at the same time, a heat transfer cavity is formed between the heat transfer element and the bottom of the container, and the heat transfer cavity is connected to the inner cavity of the container. Compared with the water in the inner cavity, the water in the heat transfer cavity can be quickly heated up by the electric heating component, so that the hot water in the heat transfer cavity and the cold water in the inner cavity further quickly form convection, thereby increasing the heating efficiency of the appliance.

[0020] In order to better understand and implement the present invention, the present invention is described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is an overall schematic diagram of a heating device provided in an exemplary embodiment;

[0022] Figure 2 is a schematic diagram of the bottom structure of a heating device provided in an exemplary embodiment;

[0023] Figure 3 is an exploded schematic diagram of a heating device provided in an exemplary embodiment;

[0024] Figure 4 is a vertical cross-sectional view of Example 1 of a heating device provided in an exemplary embodiment;

[0025] Figure 5 is a vertical cross-sectional view of Example 2 of a heating device provided in an exemplary embodiment;

[0026] Figure 6 is a vertical cross-sectional structural diagram of Example 1 of a heating device provided in an exemplary embodiment;

[0027] Figure 7 1 is a vertical cross-sectional structural diagram of Example 3 of a heating device provided in an exemplary embodiment.

[0028] in, Figures 1 to 7 The reference numerals in the figures are described as follows:

[0029] 1 container;

[0030] 2 electric heating components, 21 heat sink, 22 heating tube, 23 temperature probe hole;

[0031] 3 heat transfer parts;

[0032] 4 heat transfer cavity, 41 upper enclosed portion, 42 lower enclosed portion, 411 first inner protrusion, 421 first outer protrusion, 422 second outer protrusion, 43 water guide hole, 44 through hole. DETAILED DESCRIPTION

[0033] In order to better illustrate the present invention, the present invention is further described in detail below with reference to the accompanying drawings.

[0034] It should be clear that the embodiments described are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments of the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the embodiments of the present application.

[0035] The terms used in the embodiments of the present application are for the purpose of describing specific embodiments only and are not intended to limit the embodiments of the present application. The singular forms "a," "the," and "the" used in the embodiments of the present application and the appended claims are also intended to include plural forms unless the context clearly indicates otherwise. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more associated listed items.

[0036] When the following description refers to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. On the contrary, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the appended claims. In the description of the present application, it should be understood that the terms "first", "second", "third", etc. are only used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence, nor can they be understood as indicating or implying relative importance. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0037] In addition, in this application, unless otherwise specified, "plurality" refers to two or more. "And / or" describes the relationship between associated objects, indicating that three possible relationships exist. For example, "A and / or B" can mean: A exists alone, A and B exist simultaneously, or B exists alone. The character " / " generally indicates that the associated objects are in an "or" relationship.

[0038] Currently, heating appliances used to heat water include electric water cups, electric kettles, electric thermoses, electric water boilers, electric tea kettles, or electric steam sterilizers. These appliances all have a water container inside, with an electric heating element at the bottom. This element heats the water inside the container when powered on. To ensure a healthy and safe water heating process, the heating element is not in contact with the water but is located outside the bottom of the container. It heats the bottom wall of the container, transferring heat to the water inside. Depending on the application of the heating appliance, the container can be round, rectangular, square, or other shapes.

[0039] Refer to the following Figure 1-7 A heating device according to some embodiments of the present application is described.

[0040] An embodiment of the present application provides a heating device, including a container 1 and an electric heating component 2. The container 1 is made of titanium metal material. A heat transfer element 3 is provided on the outer side of the bottom of the container 1. The electric heating component 2 is provided on the outer side of the heat transfer element 3. The heat transfer element 3 and the bottom of the container 1 form a heat transfer cavity 4. The heat transfer cavity 4 is connected to the inner cavity of the container 1. The electric heating component 2 heats the water entering the heat transfer cavity 4 through the heat transfer element 3, thereby completing the heating of the water inside the container 1.

[0041] The electric heating assembly 2 generates temperatures of approximately 600°C during welding and 150-450°C during operation. Directly impacting the water container with these high temperatures can cause oxidation and blackening of the surfaces in contact. Using titanium to construct the container 1 capitalizes on the properties of titanium, including the unique patterning of titanium's surface after recrystallization. Therefore, to protect the container 1 from the high welding and operating temperatures of the electric heating assembly 2, the electric heating assembly 2 is not welded to the container 1 but instead connected to the container 1 via a heat transfer element 3. This prevents the electric heating assembly 2 from directly contacting the container 1. Instead, the heat transfer element 3 heats the water entering the heat transfer chamber 4, which then circulates and transfers heat with the water within the container 1, completing the overall heating of the water within the container 1. This prevents the high temperatures from welding and prolonged heating from directly impacting the bottom of the container 1 and causing oxidation and blackening, thus ensuring an aesthetically pleasing appearance.

[0042] The heat transfer chamber 4 includes an upper enclosure 41 and a lower enclosure 42, wherein the upper enclosure 41 is located on the bottom wall of the container 1, and the lower enclosure 42 is located on the heat transfer element 3. By providing a protrusion on one of the upper enclosure 41 and the lower enclosure 42, or on both the upper enclosure 41 and the lower enclosure 42, the upper enclosure 41 and the lower enclosure 42 are connected to form the heat transfer chamber 4. The heat transfer chamber 4 formed by the protrusion allows the heat generated by the electric heating assembly 2 to be concentrated into the heat transfer chamber 4 via the heat transfer surface of the heat transfer element 3. Due to the small space of the heat transfer chamber 4 and the small amount of water in the heat transfer chamber 4, the small amount of water in the heat transfer chamber 4 is rapidly heated by the concentrated heat, resulting in a large temperature difference between the heat transfer chamber 4 and the water in the container 1 in a short period of time. The larger the temperature difference, the faster the water circulates between the heat transfer chamber 4 and the container 1, thereby improving the overall heating efficiency of the heating device.

[0043] In different embodiments, the protrusion has different settings on the upper enclosing portion 41 and the lower enclosing portion 42 and different protrusion directions of the protrusion itself, among which the protrusion toward the inner cavity of the container 1 is an inner protrusion, and the protrusion away from the inner cavity of the container 1 is an outer protrusion.

[0044] In Example 1, as shown in the attached Figure 4 and attached Figure 6 As shown, the protrusions include a first inner protrusion 411 provided on the upper enclosure portion 41 and a first outer protrusion 421 provided on the lower enclosure portion 42. The outer edge of the first outer protrusion 421 matches the inner edge of the first inner protrusion 411. Thus, when the upper enclosure portion 41 and the lower enclosure portion 42 are aligned and enclosed, the outer side surface of the side wall of the first outer protrusion 421 can abut against the inner side surface of the side wall of the first inner protrusion 411, thereby forming a gap suitable for laser welding or adhesive bonding. The heat transfer element 3 is then connected to the bottom of the container 1 by laser welding or adhesive bonding. In Example 1, the first inner protrusion 411 is provided on the bottom wall of the container 1, and the first outer protrusion 421 is provided on the heat transfer element 3. While enclosing and forming the heat transfer cavity 4, the upper enclosure portion 41 and the lower enclosure portion 42 have a large gap. The bottom wall of the container 1 is minimally affected by the heating of the electric heating assembly 2, and thus has a better effect of not oxidizing and blackening after long-term use.

[0045] Of course, when the upper enclosure 41 is provided with the first inner protrusion 411, the lower enclosure 42 may also not have a protrusion but a heat transfer part 3 with a flat surface, and the upper enclosure 41 and the lower enclosure 42 can also be combined to form a heat transfer cavity 4 after being docked; or, when the upper enclosure 41 is provided with the first inner protrusion 411, the lower enclosure 42 has a second inner protrusion (not shown in the figure) that protrudes inward like the first inner protrusion 411, and the outer edge of the second inner protrusion matches the inner edge of the first inner protrusion 411, and the protrusion height of the second inner protrusion is less than the protrusion height of the first inner protrusion 411, so that the upper enclosure 41 and the lower enclosure 42 can still be combined to form a heat transfer cavity 4 after being docked.

[0046] In Example 2, as shown in the attached Figure 5 As shown, when the lower enclosing portion 42 is provided with a first external protrusion 421, the upper enclosing portion 41 may also not have a protrusion, and the bottom of the container 1 is a flat surface; or, when the lower enclosing portion 42 is provided with a first external protrusion 421, the upper enclosing portion 41 has a second external protrusion 422 that protrudes outward like the first external protrusion 421, and the inner edge of the first external protrusion 421 matches the outer edge of the second external protrusion 422, and the protrusion height of the second external protrusion 422 is less than the protrusion height of the first external protrusion 421, so that the upper enclosing portion 41 and the lower enclosing portion 42 can still enclose and form the heat transfer cavity 4 after being connected.

[0047] To connect the heat transfer chamber 4 with the interior of the container 1 so that water in the container 1 can circulate therewith, at least one through-hole 44 is provided in the upper enclosure 41 to connect the heat transfer chamber 4 with the interior of the container 1. When the upper enclosure 41 has a protrusion, the through-hole 44 can be provided on the surface and / or side of the protrusion. That is, when the upper enclosure 41 has a first inner protrusion 411 or a first outer protrusion 421, the through-hole 44 is provided on the surface and / or side of the first inner protrusion 411, or on the surface and / or side of the first outer protrusion 421. When the upper enclosure 41 does not have a protrusion but is a flat surface, the through-hole 44 is provided on the bottom wall of the container 1 corresponding to the heat transfer element 3.

[0048] The through hole 44 is formed when the container 1 is processed, and will not affect the subsequent connection between the container 1 and the heat transfer element 3. In embodiment 1, the through hole 44 is provided on the surface of the first inner protrusion 411.

[0049] Preferably, in Example 3, as shown in the attached Figure 7 As shown, the through hole 44 is provided on the side of the first inner protrusion 411. In this way, during daily use, the user cannot see the through hole 44 from the front use direction of the container 1, nor can the heat transfer element 3 at the bottom of the container 1 be observed through the through hole 44. What the user sees is the inner cavity surface of the container 1 with a complete and unified effect. In addition, in order to improve the health and safety of long-term use of the heating appliance, the heat transfer element 3 can also be made of titanium. After long-term use, the surface of the heat transfer element 3 will appear oxidized and blackened or scale residue will appear. If these surface defects are exposed to the user's field of vision through the through hole 44, they will affect the overall appearance of the container 1. Therefore, the upper enclosure 41 can shield the heat transfer element 3 from being exposed and entering the user's field of vision by providing a protrusion and arranging the through hole 44 on the side of the protrusion, thereby avoiding the influence of surface defects of the heat transfer element 3 after long-term use on the appearance of the container 1.

[0050] The capacity of the container 1 is designed to be different sizes to meet the needs of different heating water volume in different use occasions, when the capacity of the container 1 is small, the water can be taken and poured out by moving the container 1 and through the upper opening of the container 1; when the capacity of the container 1 is large or fixedly placed and the container 1 is inconvenient to move, the water guide hole 43 is arranged on the lower enclosing part 42, the water guide hole 43 can be opened and closed through the switch device, when the water guide hole 43 is opened, the container 1 is filled with water or the water in the container 1 is poured out through the connected external pipeline, after the water guide hole 43 is closed, the electric heating appliance normally heats the water in the heat transfer cavity 4 to complete the heating of the water in the container 1.

[0051] In the technical scheme of the present application, the electric heating assembly 2 is arranged on the bottom outer side of the heat transfer member 3, the electric heating assembly 2 comprises a heating pipe 22 and a heat dissipation plate 21, the heat transfer member 3, the heat dissipation plate 21 and the heating pipe 22 are sequentially welded and connected to form an integral component, and then the heat transfer member 3 is laser welded or adhesively connected with the container 1, so that the connection and fixation of the container 1, the heat transfer member 3 and the electric heating assembly 2 are completed.

[0052] In addition, the temperature sensing hole 23 is arranged on the heat dissipation plate 21, the temperature sensing probe of the device is arranged to contact the heat transfer member 3 through the temperature sensing hole 23, and the real-time temperature of the heated water in the container 1 is measured by obtaining the surface temperature of the heat transfer member 3.

[0053] According to the disclosure and teaching of the above description, the skilled in the art of the present application can also change and modify the above embodiments. Therefore, the present application is not limited to the specific embodiments disclosed and described above, and some modifications and changes of the present application should also fall within the protection scope of the claims of the present application. In addition, although some specific terms are used in the present specification, these terms are only for convenience of explanation and do not constitute any limitation on the present application.

Claims

1. A heating device, characterized in that: include: A container, the interior of which is used to hold heated water; a heat transfer element disposed on the outer side of the bottom of the container, wherein the heat transfer element and the bottom of the container form a heat transfer cavity, and the heat transfer cavity is communicated with the inner cavity of the container; The electric heating component is arranged on the outer side of the heat transfer element. The electric heating component continuously heats the water entering the heat transfer cavity through the heat transfer element, thereby completing the heating of the water inside the container.

2. A heating device according to claim 1, characterized in that: The heat transfer cavity includes an upper enclosing portion and a lower enclosing portion, the upper enclosing portion is located at the bottom of the container, and the lower enclosing portion is located at the heat transfer element. The upper enclosing portion and / or the lower enclosing portion have a protrusion so that the upper enclosing portion and the lower enclosing portion are aligned and enclosed to form the heat transfer cavity.

3. A heating device according to claim 2, characterized in that: The protrusion includes a first inner protrusion arranged on the upper enclosure portion toward the inner cavity of the container, and a first outer protrusion arranged on the lower enclosure portion away from the inner cavity of the container, and the outer edge of the first outer protrusion matches the inner edge of the first inner protrusion.

4. A heating device according to claim 2, characterized in that: The upper enclosing portion is provided with at least one through hole to connect the heat transfer cavity with the inner cavity of the container.

5. A heating device according to claim 4, characterized in that: When the upper enclosing portion has the protrusion, the through hole is arranged on the surface and / or side surface of the protrusion.

6. A heating device according to claim 2, characterized in that: The lower enclosing portion is provided with an openable water guide hole, which is communicated with an external pipeline to inject water into the interior of the container through the heat transfer cavity or discharge water from the interior of the container.

7. A heating device according to claim 1, characterized in that: The electric heating assembly includes a heating tube and a heat sink. The heat transfer element, the heat sink and the heating tube are arranged in sequence from top to bottom and are welded to each other.

8. A heating device according to claim 7, characterized in that: The heat sink is provided with a temperature detection hole, and the temperature sensing probe passes through the temperature detection hole and contacts the heat transfer element.

9. A heating device according to any one of claims 1 to 8, characterized in that: The heat transfer element and the container are bonded by laser welding or adhesive.

10. A heating device according to any one of claims 1 to 8, characterized in that: The container is made of titanium; or the container and the heat transfer element are made of titanium.

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