An electric heater, steam generating device and electric steamer

Abstract

The application discloses an electric heater, a steam generating device and an electric steamer, which comprise a heating main body, the heating main body comprises a water pipe and a heating pipe, the water pipe and the heating pipe are both spiral, and the water pipe and the heating pipe are spirally wound with each other. The electric heater, the steam generating device and the electric steamer can improve the heating efficiency.

Description

Technical Field

[0001] This utility model relates to the field of heater technology, and more specifically to an electric heater, a steam generator, and an electric steamer. Background Technology

[0002] In daily life, steam is widely used in kitchen cooking, household cleaning, and other fields. For example, electric steamers use steam to evenly cook food, and steam cleaners use the high temperature and humidity of steam to clean the surface of objects.

[0003] However, currently available steam generators typically use a straight heating element and a spiral water pipe within their heating assembly. The spiral pipe is wound around the straight pipe to produce steam. For example, Chinese patent CN221354525U discloses an electric heater that uses a stainless steel tube spirally wound around the outer wall of a straight electric heating element. However, in heating assemblies using this winding method, the water pipe has a relatively small heating area, making it difficult to control the amount of steam produced, often resulting in instability. Utility Model Content

[0004] In order to overcome the above-mentioned shortcomings of the prior art, the present invention provides an electric heater, a steam generator and an electric steamer, which can improve heating efficiency.

[0005] The technical solution adopted by this utility model to solve its technical problem is: an electric heater, including a heating body, the heating body including a water pipe and a heating element, both the water pipe and the heating element are spiral-shaped, and the water pipe and the heating element are spirally wound together.

[0006] This technical solution provides an electric heater in which both the water pipe and the heating element are threaded and spirally wound together. This increases the heating area of ​​the water pipe, improves the thermal efficiency of the electric heater, and enables more uniform steam output. At the same time, the spiral shape of the heating element increases its length, ensuring its safety and stability while allowing it to reach a higher power limit. This makes the electric heater suitable for a wider range of applications, thus providing better applicability.

[0007] In a preferred embodiment, the electric heater further includes a mounting frame with multiple fixing teeth; the heating element is fixedly mounted on the mounting frame via the multiple fixing teeth.

[0008] This technology uses the fixing teeth on the fixing bracket to fix the water pipe and heating element, which is simple, stable and easy to assemble.

[0009] In a preferred embodiment, the fixing frame is a U-shaped plate with one end open, and the arc portion of the U-shaped plate is provided with multiple fixing teeth along the length direction.

[0010] This technology uses a U-shaped plate with one open end as a fixing frame, and the fixing teeth are set on the arc side of the U-shaped plate, which can easily install and fix water pipes and heating elements. The fixing frame has a simple structure, low cost, and is easy to process.

[0011] In a preferred embodiment, the plurality of fixed teeth include a first tooth and a second tooth arranged sequentially at intervals, the width of the first tooth being greater than that of the second tooth; the diameter of the water pipe is smaller than that of the heating element, the water pipe passes through the second tooth, and the heating element passes through the first tooth.

[0012] In this technology, the wider first tooth and the narrower second tooth are arranged alternately, which can be matched with the heating element and the water pipe to achieve a better fixing effect.

[0013] In a preferred embodiment, the bottom corners of the fixing teeth are rounded to avoid scratching the water pipes and heating elements.

[0014] In a preferred embodiment, the electric heater further includes a die-cast shell, which is integrally formed with the heating body and the fixing frame by die casting and completely encloses the heating body and the fixing frame, thereby better protecting the structure of the heating body and resulting in a more stable electric heater. At the same time, the die-cast shell also has the advantages of high production efficiency, high dimensional accuracy and smooth surface.

[0015] In a preferred embodiment, the die-cast outer shell is integrally formed with water pipe protrusion holes and heating pipe protrusion holes, which facilitates the protrusion of both ends of the water pipe and heating pipe, making it more convenient to use.

[0016] In a preferred embodiment, a mounting base is integrally formed on the die-cast housing for mounting electronic components such as a thermostat.

[0017] A steam generating device includes an electric heater as described in any of the above technical solutions. The steam generating device of this technology, employing the aforementioned electric heater, can generate steam more efficiently and uniformly, achieving a stable steam output.

[0018] An electric steamer includes a steam generating device as described in any of the above technical solutions. The electric steamer in this technology uses the aforementioned steam generating device, which produces steam more evenly, allowing for more uniform and thorough steaming of food, resulting in more delicious food.

[0019] As can be seen from the above technical solution, compared with the prior art, the beneficial effects of this utility model are: The electric heater provided by this utility model has a water pipe and a heating element that are both threaded and spirally wound together. This makes the heating area of ​​the water pipe larger, improves the thermal efficiency of the electric heater, and enables more uniform steam output. At the same time, the spiral shape of the heating element increases its length, which not only ensures the safety and stability of the heating element, but also allows the heating element to reach a higher power limit. This makes the electric heater applicable to more different usage scenarios, that is, it has better applicability.

[0020] A steam generator employing the aforementioned electric heater can generate steam more efficiently and evenly, achieving stable steam output.

[0021] An electric steamer using the aforementioned steam generating device produces more even steam, allowing food to be steamed more evenly and thoroughly, resulting in more delicious food.

[0022] In addition, other advantages of this invention will be set forth in the description which follows, in part will be obvious from the description, or may be learned by practice of this invention. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the overall structure of the electric heater of this utility model; Figure 2 This is an exploded structural diagram of the electric heater of this utility model; Figure 3 This is a cross-sectional structural diagram of the electric heater of this utility model; Figure 4 This is a schematic diagram of the heating body of this utility model; Figure 5 This is a schematic diagram of the structure of the fixing frame of this utility model; Figure 6 This is a schematic diagram of the structure of the heating body of this utility model mounted on the fixed frame; Explanation of reference numerals in the attached drawings: 11. Water pipe; 12. Heating element; 13. Fixing bracket; 130. Fixing tooth; 131. First tooth; 132. Second tooth; 14. Die-cast outer shell; 141. Water pipe protrusion hole; 142. Heating element protrusion hole; 143. Mounting base. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] In the description of this utility model, it should be understood that the terms "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and 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, and therefore should not be construed as a limitation of this utility model. Furthermore, in the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0027] Reference Figure 1-6 This invention describes an electric heater, a steam generator, and an electric steamer according to embodiments of the present invention.

[0028] In one embodiment, such as Figure 1-6 As shown, an electric heater includes a heating body, which includes a water pipe 11 and a heating element 12. Both the water pipe 11 and the heating element 12 are spiral-shaped and are spirally wound together.

[0029] Among them, the water pipe 11 can be a metal pipe, such as a copper pipe or a stainless steel pipe, with one end being the water inlet and the other end being the water outlet or steam outlet; the heating element 12 can be made of metal or other heat-generating materials with good ductility, with both ends being used to connect to a power supply to achieve the heating function. Specifically, the gap between adjacent spirals of water pipe 11 is larger than the diameter of heating tube 12, and the gap between adjacent spirals of heating tube 12 is larger than the diameter of water pipe 11, so as to realize the spiral winding of water pipe 11 and heating tube 12, so that the spirals of water pipe 11 and heating tube 12 are arranged alternately, that is, the spiral of heating tube 12 is located in the gap between adjacent spirals of water pipe 11, and the spiral of water pipe 11 is located in the gap between adjacent spirals of heating tube 12, which can effectively increase the contact area between water pipe 11 and heating tube 12.

[0030] In practice, the water pipe 11 and the heating element 12 are processed into a spiral shape. The spiral water pipe 11 and the heating element 12 are wound together to obtain the heating body of the electric heater. When the electric heater is working, the heating element 12 heats the water flowing through the water pipe 11 to obtain steam or hot water.

[0031] The electric heater provided in this embodiment has a water pipe 11 and a heating element 12 that are both threaded and spirally wound together. This makes the heating area of ​​the water pipe 11 larger, improves the thermal efficiency of the electric heater, and enables more uniform steam output. At the same time, the spiral shape of the heating element 12 increases its length, which not only ensures the safety and stability of the heating element 12, but also allows the heating element 12 to reach a higher power limit. This makes the electric heater applicable to more different usage scenarios, i.e., it has better applicability.

[0032] The aforementioned electric heater can be used in steam generating devices or water heaters, preferably in steam generating devices. Because of its high thermal efficiency, this electric heater can achieve the same heating effect with less power than conventional electric heaters.

[0033] In this embodiment, the electric heater also includes a fixing frame 13, which has multiple fixing teeth 130; the heating body is fixedly installed on the fixing frame 13 through the multiple fixing teeth 130.

[0034] The heating body, formed by the water pipe 11 and the heating element 12 spirally wound together, is fixed on the fixing frame 13, and multiple fixing teeth 130 are used to fix the spiral parts of the water pipe 11 and the heating element 12.

[0035] In specific implementation, the fixing frame 13 can be a cylindrical, cylindrical or arc-shaped plate with multiple fixing teeth 130 opened along its length. The heating body can be sleeved on the fixing frame 13, and the spirals of the water pipe 11 and the heating tube 12 are respectively locked in each fixing tooth 130, thereby realizing the fixed installation of the heating body.

[0036] The above embodiment achieves the fixed installation of water pipe 11 and heating element 12 through the fixing teeth 130 on the fixing bracket 13. The structure is simple and stable and easy to assemble.

[0037] In this embodiment, the fixing frame 13 is a U-shaped plate with one end open, and the arc portion of the U-shaped plate is provided with a plurality of fixing teeth 130 along the length direction.

[0038] The fixing frame 13 is a U-shaped plate with multiple fixing teeth 130 along the upper length of the arc side; in specific implementation, the fixing teeth 130 can be an arc-shaped opening on the arc side of the U-shaped plate, and the pipes of the water pipe 11 and the heating pipe 12 can pass through the fixing teeth 130.

[0039] The above embodiment uses a U-shaped plate with one open end as a fixing frame 13, and the fixing tooth 130 is set on the arc side of the U-shaped plate, which can conveniently install and fix the water pipe 11 and the heating element 12. Moreover, the fixing frame 13 has a simple structure, low cost, and is easy to process.

[0040] In this embodiment, the plurality of fixed teeth 130 include a first tooth 131 and a second tooth 132 arranged in sequence at intervals. The width of the first tooth 131 is greater than that of the second tooth 132. The diameter of the water pipe 11 is smaller than that of the heating tube 12. The water pipe 11 passes through the second tooth 132, and the heating tube 12 passes through the first tooth 131.

[0041] The diameter of the water pipe 11 is smaller than that of the heating element 12. The heating element 12 can quickly heat the water flowing through the water pipe 11 to generate steam.

[0042] In the above embodiment, the wider first tooth 131 and the narrower second tooth 132 are arranged alternately, which can correspond and cooperate with the heating tube 12 and the water pipe 11 to achieve a better fixing effect.

[0043] In this embodiment, the bottom corners of the fixing tooth 130 are rounded to avoid scratching the water pipe 11 and the heating element 12.

[0044] In this embodiment, the electric heater also includes a die-cast shell 14. The die-cast shell 14 is integrally formed with the heating body and the fixing frame 13 by die casting, and completely encloses the heating body and the fixing frame 13, which can better protect the structure of the heating body and obtain an electric heater with a more stable structure. At the same time, the die-cast shell 14 also has the advantages of high production efficiency, high dimensional accuracy and smooth surface.

[0045] The die-cast outer shell 14 can be made of zinc, copper, aluminum, magnesium, lead, tin and their alloys as die-casting materials; preferably, the die-cast outer shell 14 is made of aluminum alloy material, which is lightweight, high-strength and highly corrosion-resistant.

[0046] Based on the above embodiments, the water pipe 11 and the heating element 12 are wound into a spiral shape during processing, and then the spiral water pipe 11 and the heating element 12 are wound together to form a heating body. Then, the wound water pipe 1 and the heating element 2 are fixedly installed on the fixing frame 13 through several fixing teeth 130. Finally, the fixed water pipe 11, the heating element 12 and the fixing frame 13 are placed together in the die casting mold for die casting to form the die casting shell 14 of the electric heater. The water pipe 11, the heating element 12 and the fixing frame 13 are completely wrapped by the die casting shell 14, and the gap between the water pipe 11, the heating element 12 and the fixing frame 13 is also completely filled by the die casting material of the die casting shell 14.

[0047] In this embodiment, the die-cast outer shell 14 is integrally formed with a water pipe protrusion hole 141 and a heating pipe protrusion hole 142, which facilitates the protrusion of both ends of the water pipe 11 and the heating pipe 12, making it more convenient to use.

[0048] There are two water pipe protrusion holes 141 and two heating pipe protrusion holes 142, which are respectively located at both ends of the die-cast outer shell 14. The water supply pipe 11 and the heating pipe 12 extend out of the die-cast outer shell 14.

[0049] In this embodiment, a mounting base 143 is integrally formed on the die-cast housing 14, which is used to install electronic components such as temperature controllers.

[0050] In another embodiment, the present invention provides a steam generating device, which includes an electric heater as described in any of the above embodiments, and is capable of generating steam more efficiently and uniformly, thereby achieving stable steam output.

[0051] One end of the water pipe 11 is connected to the water inlet pipe, and the other end is connected to the steam outlet pipe.

[0052] In practice, the steam generator can consist of an electric heater, a water tank, and a control device. One end of the water pipe 11 of the electric heater is connected to the water tank via an inlet pipe, and the other end is connected to the steam output pipe of the steam generator. The heating element 12 is connected to the control device and operates according to the power and other parameters set by the user. It heats the water flowing from the water tank into the water pipe 11 to a boiling state, and the generated steam flows out through the steam output pipe.

[0053] The aforementioned steam generating device can be used in appliances that require the use of high-temperature steam, such as electric steamers, steam cleaners, garment steamers, and steam mops.

[0054] In another embodiment, the present invention provides an electric steamer that includes a steam generating device as described in any of the above embodiments. Because the steam generating device produces steam more evenly, it can steam food more evenly and thoroughly, making the food cooked in the electric steamer more delicious.

[0055] Other components and operations of the electric heater, steam generator, and electric steamer according to the embodiments of this utility model are known to those skilled in the art and will not be described in detail here.

[0056] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0057] In the description of this specification, references to the terms "embodiment," "specific embodiment," "example," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example that is included in at least one embodiment or example of the present invention.

[0058] In this specification, the illustrative expressions of the terms used do not necessarily refer to the same embodiments or examples. Moreover, the specific features, structures, materials, or characteristics described may be combined with each other in any suitable manner in one or more embodiments or examples without interference or contradiction.

Claims

1. An electric heater, comprising a heating body and a mounting frame (13), wherein the heating body includes a water pipe (11) and a heating element (12), characterized in that: Both the water pipe (11) and the heating element (12) are spiral-shaped, and the water pipe (11) and the heating element (12) are spirally intertwined. The fixing frame (13) is provided with multiple fixing teeth (130); the heating body is fixedly installed on the fixing frame (13) through the multiple fixing teeth (130).

2. The electric heater according to claim 1, characterized in that: The fixing frame (13) is a U-shaped plate with one end open, and the arc portion of the U-shaped plate is provided with the plurality of fixing teeth (130) along the length direction.

3. The electric heater according to claim 2, characterized in that: The plurality of fixed teeth (130) include a first tooth (131) and a second tooth (132) arranged in sequence at intervals, wherein the width of the first tooth (131) is greater than that of the second tooth (132). The diameter of the water pipe (11) is smaller than the diameter of the heating tube (12). The water pipe (11) passes through the second toothed opening (132), and the heating tube (12) passes through the first toothed opening (131).

4. The electric heater according to claim 2, characterized in that: The bottom corners of the fixed toothed opening (130) are rounded.

5. The electric heater according to any one of claims 1 to 4, characterized in that: It also includes a die-cast outer shell (14), which is integrally formed with the heating body and the fixing frame (13) by die casting and completely encloses the heating body and the fixing frame (13).

6. The electric heater according to claim 5, characterized in that: The die-cast outer shell (14) is integrally formed with a water pipe protrusion hole (141) and a heating pipe protrusion hole (142).

7. The electric heater according to claim 6, characterized in that: The die-cast outer shell (14) is integrally provided with a mounting base (143).

8. A steam generating device, characterized in that: Includes the electric heater as described in any one of claims 1 to 7.

9. An electric steamer, characterized in that: Includes the steam generating apparatus as described in claim 8.

Images