Steam generating device and cooking utensil
By adopting multiple interval heating parts in the steam generator and adopting top-to-bottom water heating method, scale formation and noise problems are solved, and more efficient heat transfer and lower noise are achieved.
Patent Information
- Application Number
- CN202420475700.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-12
- Publication Date
- 2025-02-25
- Estimated Expiration
- 2034-03-12
AI Technical Summary
The existing steamer and steaming and baking machine are prone to forming scale when heating water to generate steam, reducing heating efficiency, and noise is generated during the water heating process.
A steam generator is designed, using multiple heating parts arranged at intervals. The top of each heating part is connected to the top of the container body, and the bottom is immersed in water. The water from top to bottom is used to generate the surface water after heating. The small bubbles rise and break directly, preventing the small bubbles from gathering into large bubbles, reducing noise, and cleaning the wall of the heating element through the impact of the small bubbles breaking to prevent scale from forming.
It effectively reduces the noise during the water heating process, maintains the cleanliness of the water, avoids scale forming on the heating wall of the heating parts, and improves heat transfer efficiency.
Smart Images
Figure CN222516654U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of kitchen appliances, in particular to a steam generating device and a cooking utensil. Background Art
[0002] Existing steamers and steam-bake machines usually use continuous heating of water to generate steam to steam food during use. However, in the process of heating water, various impurities contained in the water will form scale and adhere to the heating surface. Scale is a poor conductor of heat. After being attached and accumulated on the heating surface, it hinders the transfer of heat from the heating surface to the water, thereby reducing the heating efficiency of the steam generator. At the same time, existing steam generators usually use bottom heating. The water at the bottom is heated to generate bubbles that float upward, and during the floating process, small bubbles will merge into large bubbles. Some bubbles will contact the water above during the rising process, thereby releasing heat and the bubbles disappear. Some bubbles rise to the water surface and burst to release water vapor. The above phenomenon in the water heating process will cause violent vibration of the water body and generate loud noise, especially when the water body resonates with the metal wall of the steam generator, the noise is particularly obvious. Utility Model Content
[0003] Based on the above problems, the purpose of the present invention is to provide a steam generating device and a cooking utensil, which can reduce noise and scale adhesion.
[0004] In order to achieve the above objectives, the following technical solutions are provided:
[0005] In a first aspect, the utility model provides a steam generating device, comprising:
[0006] A accommodating box body, wherein the accommodating box body is provided with a steam outlet, and a drain outlet is provided at the bottom of the accommodating box body;
[0007] The heating assembly includes a plurality of heating elements arranged at intervals, the top of each heating element is connected to the top of the containing box body, at least the bottom of the heating element is immersed in water, and the heat conduction direction of the heating element is from top to bottom, so that the heating power is different from shallow to deep water depth.
[0008] As an optional solution of the steam generating device provided by the utility model, the bottom of the containing box body is arranged obliquely, and the bottom of each heating element is arranged at an equal interval from the bottom of the containing box body.
[0009] As an optional solution of the steam generating device provided by the utility model, a water inlet is provided at the bottom of the containing box body, the water inlet is higher than the bottom of the containing box body, and the steam outlet is higher than the water inlet.
[0010] As an optional solution for the steam generating device provided by the utility model, a baffle is provided in the containing box body, the baffle is located between the steam outlet and the drain port, and the baffle is spaced from the top of the containing box body to form a steam channel.
[0011] As an optional solution of the steam generating device provided by the utility model, the side of the baffle is spaced apart from the inner wall of the containing box body; and / or the bottom of the baffle is spaced apart from the inner wall of the containing box body.
[0012] As an optional solution of the steam generating device provided by the utility model, the baffle is provided with a connecting hole, and the connecting hole connects two sides of the baffle.
[0013] As an optional solution of the steam generating device provided by the utility model, the steam generating device further comprises a water level detecting component, wherein the water level detecting component is used to detect the water level in the containing box body, and the water level detecting component is higher than the bottom of the containing box body.
[0014] As an optional solution of the steam generating device provided by the utility model, the containing box body comprises a cover body and a base connected to each other, the steam outlet is arranged on the cover body, and the drain outlet is arranged on the base.
[0015] As an optional solution of the steam generating device provided by the utility model, the base is provided with a receiving groove, the cover body is covered on the notch of the receiving groove, and the steam outlet and the drain outlet are both connected to the receiving groove.
[0016] In a second aspect, the utility model further provides a cooking utensil, comprising a cooking cavity and the above-mentioned steam generating device, wherein the steam generating device is used to supply steam to the cooking cavity.
[0017] The beneficial effects of the utility model are:
[0018] The utility model provides a steam generating device and a cooking utensil, wherein a water supply system of the cooking utensil supplies water to a containing box body, the water in the containing box body forms steam under the heating action of a heating element, the steam is discharged through a steam outlet, and then supplied to a cooking cavity for heating food. In the process of heating the water, since the top of the heating element is connected to the top of the containing box body and the bottom of the heating element is inserted into the water, the heating element adopts a top-down water heating method, the water in the surface layer receives more heat and the water in the bottom layer receives less heat, the small bubbles generated after the surface layer water is heated directly rise and break, the small bubbles generated after the water below the surface layer is heated from shallow to deep rise to the surface layer in turn and break, thereby avoiding the small bubbles from gathering into large bubbles to cause violent vibration of the water body, reducing the noise generated in the process of heating the water, reducing the disturbance of the bottom layer water, and maintaining the cleanliness of the water, and the interval arrangement of multiple heating elements further limits the small bubbles from gathering into large bubbles When the volume of the bubbles increases to the size of the gap between two adjacent heating elements, the wall covering effect of the bubbles and the heating elements occurs, which weakens the vibration effect of the large bubble breakage on the water body and further reduces the noise generated during the water heating process. During the water heating process, the impurities attached to the water are precipitated and sink to the bottom of the containing box under the action of gravity. Most of the impurities are discharged with the wastewater through the drain port, and a few impurities are attached to the wall surface of the heating element. The impact force generated by the continuous small bubble breakage cleans the impurities attached to the wall surface, maintains the cleanliness of the heating wall surface of the heating element, and avoids the formation of scale on the heating wall surface of the heating element, which affects the heat transfer efficiency. When the water level in the containing box is low, due to the inclined setting of the bottom of the containing box body, there is still an appropriate amount of water in the containing box body, and the bottom of the heating element and the bottom of the containing box body are arranged at equal intervals. The heating body has enough volume to be inserted into the water to release heat, thereby preventing the heating body from dry burning. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present invention and these drawings without paying any creative work.
[0020] Figure 1 It is a structural schematic diagram of a steam generating device provided in a specific embodiment of the utility model;
[0021] Figure 2 It is a first cross-sectional schematic diagram of a steam generating device provided in a specific embodiment of the utility model;
[0022] Figure 3 It is a second cross-sectional schematic diagram of the steam generating device provided in a specific embodiment of the utility model;
[0023] Figure 4 It is a third cross-sectional schematic diagram of the steam generating device provided in a specific embodiment of the utility model.
[0024] In the figure:
[0025] 1. Containing box; 2. Heating component; 3. Water level detection component;
[0026] 11. Cover; 111. Steam outlet; 12. Base; 121. Drain outlet; 122. Water inlet; 13. Baffle;
[0027] 21. Heating element; 22. Heating tube. DETAILED DESCRIPTION
[0028] In order to make the technical problems solved by the utility model, the technical solutions adopted and the technical effects achieved clearer, the technical solutions of the embodiments of the utility model will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.
[0029] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions 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 orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions.
[0030] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0031] like Figures 1 to 4As shown, this embodiment provides a steam generating device, which includes a containing box body 1 and a heating assembly 2. The containing box body 1 is provided with a steam outlet 111, and the steam outlet 111 can be located at the top of the containing box body 1. The bottom of the containing box body 1 is provided with a drain outlet 121; the heating assembly 2 includes a plurality of heating elements 21 arranged at intervals, and the top of each heating element 21 is connected to the top of the containing box body 1, and at least the bottom of the heating element 21 is immersed in water, and the heat conduction direction of the heating element 21 is from the top to the bottom, so that the heating power is different from shallow to deep water depth.
[0032] The water supply system of the cooking utensil supplies water to the containing box body 1. The water in the containing box body 1 forms steam under the heating effect of the heating element 21. The steam is discharged through the steam outlet 111 and then supplied to the cooking cavity for heating food. In the process of heating the water, since the top of the heating element 21 is connected to the top of the containing box body 1 and the bottom of the heating element 21 is inserted into the water, the heating element 21 adopts a top-to-bottom water heating method. The water on the surface receives more heat, and the water on the bottom receives less heat. The small bubbles generated by the surface water after heating directly rise and break, and the small bubbles generated by the water below the surface after heating from shallow to deep rise to the surface and break in turn, thereby avoiding the small bubbles from gathering into large bubbles to cause violent vibration of the water body, reducing the noise generated during the water heating process, reducing the disturbance of the bottom water, and maintaining the cleanliness of the water. The spacing of multiple heating elements 21 further limits the aggregation of small bubbles into large bubbles. When the volume of the bubbles increases to the size of the gap between two adjacent heating elements 21, the wall covering effect of the bubbles and the heating elements 21 occurs, which reduces the vibration effect of the large bubble breakage on the water body, further reduces the noise generated during the water heating process, reduces the disturbance of the bottom water, and maintains the cleanliness of the water. During the water heating process, impurities attached to the water are precipitated and sink to the bottom of the containing box body 1 under the action of gravity. Most of the impurities are discharged with the wastewater through the drain port 121, and a few impurities are attached to the wall surface of the heating element 21. The impact force generated by the continuous small bubble breakage cleans the impurities attached to the wall surface, maintains the cleanliness of the heating wall surface of the heating element 21, and avoids the formation of scale on the heating wall surface of the heating element 21 to affect the heat transfer efficiency.
[0033] Optionally, the bottom of the receiving box body 1 is tilted, and the bottom of each heating element 21 is evenly spaced from the bottom of the receiving box body 1. When the water level in the receiving box body 1 is low, since the bottom of the receiving box body 1 is tilted, there is still a proper amount of water in the receiving box body 1, and the bottom of the heating element 21 is evenly spaced from the bottom of the receiving box body 1, the heating body has enough volume to be inserted into the water to release heat, thereby preventing the heating body from burning dry.
[0034] To facilitate adding water to the containing box body 1, optionally, a water inlet 122 is provided at the bottom of the containing box body 1, and the water inlet 122 is higher than the bottom of the containing box body 1, thereby preventing impurities such as scale from flowing into the water inlet 122, and the steam outlet 111 is higher than the water inlet 122, thereby facilitating the discharge of steam from the steam outlet 111.
[0035] Optionally, a baffle 13 is provided in the receiving box body 1, and the baffle 13 is located between the steam outlet 111 and the drain outlet 121. The baffle 13 and the top of the receiving box body 1 are spaced to form a steam channel. Under the action of the baffle 13, the interior of the receiving box body 1 is divided into a heating space and a steam collection space to reduce the transmission of noise when the water boils. The steam collides with the baffle 13, so that the small particles of liquid water carried in the steam flow collide with the baffle 13 and adhere to the baffle 13, and then flow back into the water in the receiving box body 1.
[0036] In some embodiments, the side of the baffle 13 is spaced apart from the inner wall of the containing box body 1, and the spaces on both sides of the baffle 13 are connected from the side of the baffle 13; and / or, the bottom of the baffle 13 is spaced apart from the inner wall of the containing box body 1, and the spaces on both sides of the baffle 13 are connected from the bottom of the baffle 13. In some embodiments, the baffle 13 is provided with a connecting hole, and the connecting hole connects the two sides of the baffle 13. The structural form of the baffle 13 connecting the spaces on both sides can be determined according to the installation space of the baffle 13 and the area of the required connecting cross section.
[0037] Optionally, the steam generating device further comprises a water level detection assembly 3, which is used to detect the water level in the containing box body 1, and the water level detection assembly 3 is higher than the bottom of the containing box body 1. The baffle 13 and the bottom of the containing box body 1 are spaced apart to form a water channel, and the water level detection assembly 3 is located on the side of the baffle 13 facing the steam outlet 111. The water level detection assembly 3 can be located inside the containing box body 1 or outside the containing box body 1, and the water level detection is realized through the pipeline of the communicating vessel structure. When the water level rises to the probe position of the water level detection assembly 3, the probe detects the water level signal, which is fed back to the control system, and the water supply is stopped. At this time, most of the volume of the heating element 21 is immersed in water.
[0038] Optionally, the container body 1 includes a cover body 11 and a base 12 connected to each other, the steam outlet 111 is arranged on the cover body 11, and the drain outlet 121 is arranged on the base 12. The container body 1 adopts a split design, which is convenient for assembly. Optionally, the base 12 is provided with a container groove, the cover body 11 is covered on the groove of the container groove, and the steam outlet 111 and the drain outlet 121 are both connected to the container groove. The bottom of the container groove is inclined, which is convenient for gathering and heating a small amount of water, and also convenient for wastewater to be transported to the drain outlet 121 under the action of gravity.
[0039] Optionally, the heating assembly 2 further includes a heating tube 22, which is disposed in the cover 11, and the cover 11 is connected to the heating element 21. The heating tube 22 is buried in the cover 11, and the heating tube 22 transfers heat to the cover 11, and then transfers heat to the heating element 21. The cover 11 can be made of a material with good thermal conductivity. During the steam rising from the water surface, heat exchange occurs again with the part of the heating element 21 located on the water surface and the bottom surface of the cover 11, further increasing the heat of the steam.
[0040] In some embodiments, the heating element 21 is a heating fin. The thickness of the heating fin is small, which is easy to transfer heat and improve the heating efficiency. The gap between two adjacent heating fins can be smaller to limit the small bubbles from gathering into large bubbles. The heating fin has a taper, and the heating fin is vertically inserted into the water. The root cross-section of the heating fin away from the water surface is large, and the head cross-section of the heating fin close to the water surface is small. In some embodiments, the heating element 21 is a heating rod. A plurality of heating rods are distributed in an array at the bottom of the cover 11 to improve the heating efficiency and reduce the aggregation of bubbles.
[0041] This embodiment also provides a cooking device, including a cooking cavity and the above-mentioned steam generating device, the steam generating device is used to supply steam to the cooking cavity, the water supply system of the cooking device supplies water to the containing box body 1, the water in the containing box body 1 forms steam under the heating action of the heating element 21, the steam is discharged through the steam outlet 111, and then supplied to the cooking cavity for heating food. In the process of heating water, since the top of the heating element 21 is connected to the top of the containing box body 1, and the bottom of the heating element 21 is inserted into the water, the heating element 21 adopts a top-to-bottom water heating method, the surface water receives more heat, and the bottom water receives less heat, the small bubbles generated after the surface water is heated directly rise and break, and the small bubbles generated after the water below the surface is heated from shallow to deep rise to the surface and break in turn, thereby avoiding the small bubbles from gathering into large bubbles to cause violent vibration of the water body, and reducing the noise generated during the water heating process. The spacing of multiple heating elements 21 further limits the aggregation of small bubbles into large bubbles. When the volume of the bubbles increases to the size of the gap between two adjacent heating elements 21, the wall covering effect of the bubbles and the heating elements 21 occurs, which reduces the vibration effect of the large bubble breakage on the water body and further reduces the noise generated during the water heating process. During the water heating process, the impurities attached to the water are precipitated and sink to the bottom of the container body 1 under the action of gravity. Most of the impurities are discharged with the wastewater through the drain port 121, and a few impurities are attached to the wall surface of the heating element 21. The impact force generated by the continuous small bubble breakage cleans the impurities attached to the wall surface, maintains the cleanliness of the heating wall surface of the heating element 21, and avoids the formation of scale on the heating wall surface of the heating element 21 to affect the heat transfer efficiency. When the water level in the container body 1 is low, due to the inclined setting of the bottom of the container body 1, there is still a proper amount of water in the container body 1, and the bottom of the heating element 21 is arranged at equal intervals from the bottom of the container body 1, and the heating body has enough volume to be inserted into the water to release heat, preventing the heating body from burning dry.
[0042] Note that the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention is described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims
1. A steam generating device, characterized in that: include: A containing box body (1), wherein the containing box body (1) is provided with a steam outlet (111), and a drain outlet (121) is provided at the bottom of the containing box body (1); The heating assembly (2) comprises a plurality of heating elements (21) arranged at intervals, the top of each heating element (21) being connected to the top of the containing box body (1), at least the bottom of the heating element (21) being immersed in water, and the heat conduction direction of the heating element (21) being from the top to the bottom, so that the heating power is different from shallow to deep water depth.
2. The steam generating device according to claim 1, characterized in that: The bottom of the containing box body (1) is arranged obliquely, and the bottom of each heating element (21) is arranged at an equal interval from the bottom of the containing box body (1).
3. The steam generating device according to claim 2, characterized in that: A water inlet (122) is provided at the bottom of the containing box body (1); the water inlet (122) is higher than the bottom of the containing box body (1); and the steam outlet (111) is higher than the water inlet (122).
4. The steam generating device according to claim 1, characterized in that: A baffle (13) is provided in the containing box body (1), the baffle (13) is located between the steam outlet (111) and the drain outlet (121), and the baffle (13) is spaced from the top of the containing box body (1) to form a steam channel.
5. The steam generating device according to claim 4, characterized in that: The side of the baffle (13) is spaced apart from the inner wall of the containing box body (1); and / or the bottom of the baffle (13) is spaced apart from the inner wall of the containing box body (1).
6. The steam generating device according to claim 4, characterized in that: The baffle plate (13) is provided with a communication hole, and the communication hole communicates with two sides of the baffle plate (13).
7. The steam generating device according to claim 1, characterized in that: The steam generating device further comprises a water level detection component (3), wherein the water level detection component (3) is used to detect the water level in the containing box body (1), and the water level detection component (3) is higher than the bottom of the containing box body (1).
8. The steam generating device according to claim 1, characterized in that: The containing box body (1) comprises a cover body (11) and a base (12) which are connected to each other; the steam outlet (111) is arranged on the cover body (11); and the water drain outlet (121) is arranged on the base (12).
9. The steam generating device according to claim 8, characterized in that: The base (12) is provided with a receiving groove, the cover body (11) is covered on the groove opening of the receiving groove, and the steam outlet (111) and the drain outlet (121) are both in communication with the receiving groove.
10. A cooking utensil, characterized in that: The invention comprises a cooking cavity and a steam generating device as claimed in any one of claims 1 to 9, wherein the steam generating device is used for supplying steam to the cooking cavity.