CN216962170U - Cooking utensil - Google Patents

Abstract

The utility model discloses a cooking appliance, which comprises a container body, wherein a heating cavity is defined in the container body, a plurality of tourmaline particles are embedded on the inner wall of the container body, the surfaces of the tourmaline particles comprise first surfaces, and the first surfaces are exposed in the heating cavity. According to the cooking utensil provided by the embodiment of the utility model, the exposed tourmaline particles are arranged, so that the tourmaline particles can emit stronger far infrared rays, large water molecules are convenient to be converted into small water molecule groups, the water activity in the cooking process is higher, the permeability and the dissolving power are stronger, chlorine in tap water can be reduced, chlorine odor is eliminated, the taste of water is better, the aroma of cooked food is better, and the cooking utensil is more helpful for the health of a human body.

Description

Cooking utensil

Technical Field

The utility model relates to the technical field of cooking equipment, in particular to a cooking appliance.

Background

Most of water used for boiling and cooking in life is tap water, and the tap water is usually subjected to chlorine oxidation treatment, so that the taste of the boiled water or food is influenced by residual chlorine smell. In order to solve the problem of water quality, a plurality of families purify tap water by purchasing a water purifier, but the water purification needs certain waiting time, and some water purifiers need frequent replacement of filter elements, so the use is troublesome.

The prior art provides a cooker, the surface of which is coated with tourmaline powder coating, and the tourmaline powder coating is utilized to achieve the functions of purifying running water and resisting and inhibiting bacteria. However, after practical use, people find that the water boiled by the cooker has chlorine smell and the purification effect needs to be improved.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the utility model provides the cooking appliance which can better purify water by running water and can cook food more healthily and deliciously.

The utility model provides a cooking appliance, which comprises a container body, wherein a heating cavity is defined in the container body, a plurality of tourmaline particles are embedded on the inner wall of the container body, the surfaces of the tourmaline particles comprise first surfaces, and the first surfaces are exposed in the heating cavity.

This application establishes the tourmaline granule through inlaying on the inner wall of the container body, the first surface of tourmaline granule appears in the heating intracavity, tourmaline granule does not have the inner wall parcel by the container body at first surface like this, the far infrared that produces in the tourmaline granule, can be through first surface directive heating chamber, tourmaline granule is through transmitting stronger far infrared, can effectively cut off the long chain of big hydrone, make it change into little hydrone, on the one hand can restore the chlorine in the running water, eliminate chlorine smelly, make the taste of water better, the food fragrance of culinary art out is better, on the other hand little hydrone group drops into the quantity and the speed of cell membrane and is very increased, exchange between reinforcing oxygen and the food nourishment, thereby reinforcing immunity, it helps more to the health of human body.

Optionally, the first surface protrudes from the inner surface of the container body, and the tourmaline particle further comprises a second surface embedded in the pot wall of the container body.

Optionally, when the tourmaline particles are embedded on the bottom wall of the container body, the first surface of the tourmaline particles has a vertical projection area on the bottom wall of the container body, and the sum of the areas of the vertical projection areas of all the tourmaline particles on the bottom wall is 50-99% of the area of the bottom wall of the container body. The sum of the areas of the vertical projection areas of the tourmaline particles at least accounts for half of the area of the bottom wall of the container body, thereby ensuring that the radiation range of far infrared rays is larger. When the tourmaline particles are distributed discretely, the rays of the single tourmaline particle are utilized for dispersion, and the probability of the radiation range of the far infrared ray can cover the whole heating cavity.

When the container body is used for cooking, food may come into contact with the bottom wall of the container body. Inlay the tourmaline granule on the diapire, tourmaline granule is close with food distance, and far infrared, anion that food received are more concentrated, can reduce the excessive extravagant condition of far infrared moreover. Thus, far infrared rays generated with a smaller number of tourmaline particles have a larger radiation area.

Optionally, the sum of the areas of the vertical projection areas of all the tourmaline particles is 55-75% of the area of the bottom wall of the container body. The proportion of the tourmaline particles in the bottom wall of the container body is 55-75%, the effect of the tourmaline particles can be fully exerted, the radiation area probability of the tourmaline particles can cover the whole heating cavity, and the dosage of the tourmaline particles can be controlled.

Optionally, the thickness of the container body is 1mm-10 mm. Can ensure that the container body has enough strength, can contain food materials and bear weight.

Optionally, when the first surface of the tourmaline particle protrudes out of the inner surface of the container body, the height of the first surface is a, the height of the second surface is b, and the inlay proportion P of the tourmaline particle is b/(a + b), P is greater than or equal to 0.5 and less than or equal to 0.7. The proportion of the tourmaline particles protruding out of the inner surface of the container body is related to the radiation efficiency of the tourmaline particles, the blocking of the bottom wall of the container body is reduced, and the more the proportion of the tourmaline particles protruding out is, the more the tourmaline particles can radiate far infrared rays. On the other hand, the larger the projecting proportion of the tourmaline particles is, the larger the fixing difficulty of the tourmaline particles is, so that the proper embedding proportion of P is more than or equal to 0.5 and less than or equal to 0.7, the far infrared radiation efficiency of the tourmaline particles can be ensured, and the firm embedding between the tourmaline particles and the bottom wall of the container body can be ensured.

Optionally, the maximum particle size of the tourmaline particles is 1mm-10 mm. The far infrared radiation amount of the tourmaline particles is higher than that of the existing conventional tourmaline coating, and meanwhile, the tourmaline particles with larger particle size are convenient to be embedded into the bottom wall of the container body, so that the manufacturing difficulty of the cooking utensil is reduced.

Optionally, the container body has a ceramic layer, and the tourmaline particles are embedded on the ceramic layer. The ceramic layer is not easy to heat and transfer heat, has slow heat dissipation and good heat preservation effect, and can reduce the conditions of pot sticking and rusting.

In some embodiments, the tourmaline particles are integrally sintered and connected to the container body by being embedded in the blank of the container body.

Optionally, the first surface is a cut surface of the tourmaline particles from which a portion protruding from the inner surface of the container body is cut off, and the first surface is flush with the inner surface of the container body. When the first surface of the tourmaline particles is flush with the inner surface of the container body, the inner surface of the container body can be smoother, and the cooking and cleaning are convenient.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The above and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 shows a schematic structural diagram of a prior cooking appliance provided with a tourmaline coating according to an embodiment of the application.

Fig. 2 shows a schematic cross-sectional structural view of a cooking appliance provided with raised tourmaline particles according to an embodiment of the present application.

Fig. 3 is a schematic cross-sectional structural view illustrating a cooking appliance provided with level tourmaline particles according to an embodiment of the present application.

Fig. 4 shows a schematic structural diagram of a cooking appliance provided by the embodiment of the application, wherein tourmaline particles are arranged on the side wall.

Fig. 5 shows a schematic structural view of tourmaline particles provided by the embodiment of the present application in a circular shape distributed on a bottom wall.

Fig. 6 is a schematic structural view showing that tourmaline particles provided by the embodiment of the present application are annularly distributed on the bottom wall.

Fig. 7 is an enlarged schematic view of the structure of the tourmaline particles embedded in the bottom wall according to the embodiment of the present application.

Fig. 8 shows a line graph of the power density of far infrared radiation provided by the embodiment of the present application.

Reference numerals:

1000-a cooking utensil comprising a base and a lid,

10-container body, 101-bottom wall, 102-side wall,

20-a heating chamber is arranged in the heating chamber,

30-tourmaline particles, 301-a first surface, 302-a second surface,

40-ceramic layer.

Detailed Description

Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.

In the description of the present application, it is to be understood that the terms "length," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present application and simplifying the description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present application. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless otherwise specified.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.

The structure of a cooking appliance 1000 according to an embodiment of the present application is described below with reference to fig. 1 to 8.

Referring to fig. 2 and 3, the cooking appliance 1000 according to the embodiment of the present application includes a container body 10, a heating chamber 20 is defined in the container body 10, a plurality of tourmaline particles 30 are embedded on an inner wall of the container body 10, a surface of the tourmaline particles 30 includes a first surface 301, and the first surface 301 is exposed in the heating chamber 20.

As is well known, tourmaline is a general term for minerals of the tourmaline family, which is a silicate mineral having a cyclic structure of aluminum, sodium, iron, magnesium, and lithium characterized by containing boron. It is known that tourmaline has many functions such as releasing negative ions, releasing far infrared rays, etc. and is commonly used in the products for physical therapy.

Some studies suggest that tourmaline can produce electrolyzed water when used in drinking vessels, and can exert effects such as interfacial activity, chlorine stabilization, iron inactivation, and water reduction after electrolysis of water. Can reduce the water molecular beam, thereby achieving the effects of dechlorination and deodorization. Therefore, a cooking utensil, such as a pot body shown in fig. 1, has appeared in the prior art, in which a tourmaline coating is provided on the inner surface thereof, and the tourmaline coating is attached to the inner surface of the utensil by a thermal spraying process or a hard oxidation process. However, the actual use effect of the cooker is far from the theoretical research result of tourmaline, and people are difficult to convince that the tourmaline can play a role in the cooker.

In order to solve the above problems, the inventor team has made many studies on the structure and effect of tourmaline and proposed a solution in which tourmaline particles 30 are embedded on the inner wall of a container body 10. Such tourmaline particles 30 are not a component of the paint but embedded as single crystals on the container body 10.

It can be understood that the arrangement of the tourmaline coating layer in the prior art scheme needs to grind the tourmaline materials into powder and mix the powder with other adhesive materials so as to ensure that the coating can be adhered to the inner wall of the pot body and formed. Even if the entire pot is made of steel or ceramic containing tourmaline materials, the tourmaline materials also need to be ground into powder and mixed with other materials in order to be formed. The coating layer of tourmaline is microscopically coated with other particles and molecules around the single tourmaline particle, and the far infrared rays generated by the coating layer are easily blocked by other particles and molecules when the far infrared rays are emitted. The penetration ability of far infrared rays is weak, so that the actually obtained far infrared rays are very weak in the pot body containing the tourmaline coating layer.

According to the scheme of the application, the tourmaline particles 30 are embedded on the inner wall of the container body 10, the first surface 301 of the tourmaline particles 30 is exposed in the heating cavity 20, and thus the tourmaline particles 30 are not wrapped by the inner wall of the container body 10 on the first surface 301. The far infrared rays generated in the tourmaline particles 30 can be emitted to the heating chamber 20 through the first surface 301, so that water or food in the heating chamber 20 can be purified. In the single crystalline tourmaline particles 30, the number of molecules capable of generating far infrared rays is large and concentrated, so that strong far infrared rays can be intensively emitted. The tourmaline particle 30 can effectively cut off the long chains of large water molecules by emitting strong far infrared rays, so that it is converted into small molecular groups, thereby enhancing the activity, permeability and dissolving power of water.

In addition, the tourmaline particles 30 are provided in the cooking appliance 1000, and the cooking appliance 1000 cooks by heating the heating chamber 20. Tourmaline has remarkable heat, and the more heat absorbed by tourmaline generates more far infrared rays. Therefore, the cooking appliance 1000 can heat water or food and generate strong far infrared rays in the heating cavity 20.

Therefore, the cooking utensil 1000 of the embodiment of the application generates a large amount of far infrared rays through the tourmaline particles 30, large water molecules are convenient to be converted into small water molecule groups, more small water molecule groups enable the activity of water in the cooking process to be higher, the permeability and the dissolving power are also stronger, chlorine in tap water can be reduced on the one hand, chlorine odor is eliminated, the taste of water is enabled to be better, the aroma of cooked food is better, the quantity and the speed of cell membranes thrown into the small water molecule groups on the other hand are greatly increased, and the exchange between oxygen and food nutrients is enhanced.

Similarly, tourmaline particle 30 can also produce more negative ions and trace minerals after heating, the negative ions can make water or food taste better, and can also play the function of anti-fatigue and improving cell metabolism, the trace minerals generated can provide the human body with the required trace elements, which is beneficial to human health.

In some embodiments of the present application, as shown in fig. 2 to 4, the inner wall of the container body 10 may include a bottom wall 101 and a side wall 102, and the tourmaline particles 30 may be provided on the bottom wall 101 or the side wall 102, or both the bottom wall 101 and the side wall 102 may be provided with the tourmaline particles 30. There are cases where the tourmaline particles 30 may be embedded in the top wall of the container body 10.

The method of inserting the tourmaline particles 30 into the inner wall of the container body 10 is not particularly limited, but includes, but is not limited to, fixing the tourmaline particles 30 by using clamping legs, and providing grooves on the inner wall of the container body 10 and clamping the tourmaline particles 30 in the grooves.

The shape of the tourmaline particles 30 is not particularly limited and includes, but is not limited to, a spherical shape, an ellipsoidal shape, a water droplet type, a cubic shape, an irregular shape, etc.

The present application does not specifically limit the type of cooking utensil 1000, including but not limited to a steamer, a frying pan, a stir-frying pan, a marmite, an electric cooker liner, etc.

Specifically, as shown in fig. 7, the tourmaline particle 30 includes a first surface 301 and a second surface 302, the first surface 301 is exposed to the heating chamber 20, and the second surface 302 is buried in the wall of the pot of the container body 10. That is, the tourmaline particles 30 are at least partially buried in the wall of the container body 10. Thus, the tourmaline particles 30 have a large contact area with the container body 10 and are not easily dropped.

As shown in fig. 3, in some embodiments of the present application, the first surface 301 is flush with the inner surface of the container body 10, which may make the inner surface of the container body 10 smoother, facilitating cooking and cleaning.

In other embodiments, as shown in fig. 2, the first surface 301 of the tourmaline particle 30 protrudes from the inner surface of the container body 10. This arrangement allows the tourmaline particles 30 to have a larger contact area with water or food in the container body 10 than in the case where the first surface 301 is flush with the inner surface of the container body 10. And the part of the tourmaline particle 30 protruding out of the inner surface of the container body 10 has smaller blocking effect by the container body 10, the radiation of far infrared rays is smoother, and the far infrared ray has larger radiation area and radiation angle, thus being more beneficial to improving the water activity and making cooked food more delicious and healthy.

Alternatively, the tourmaline particles 30 have a spherical or ellipsoidal shape, and the portion of the tourmaline particles 30 protruding from the inner surface of the container body 10 has a relatively smooth surface, which is more convenient for cleaning.

In some embodiments of the present application, the tourmaline particles 30 are embedded on the bottom wall 101 of the container body 10. When the container body 10 is used for cooking, food may come into contact with the bottom wall 101 of the container body 10. The tourmaline particles 30 are embedded on the bottom wall 101, the tourmaline particles 30 are close to food, far infrared rays and negative ions received by the food are more concentrated, and the condition of excessive waste of the far infrared rays can be reduced.

The number of the tourmaline particles 30 is plural, and the plural tourmaline particles 30 are spaced apart from each other, so that the far infrared rays generated with the small number of the tourmaline particles 30 have a larger radiation area.

When the number of the tourmaline particles 30 is plural, the shape formed by the plural tourmaline particles 30 after being distributed is not limited. For example, as shown in fig. 5, a plurality of tourmaline particles 30 are discretely distributed on the bottom wall 101, and have a circular shape as a whole. As shown in fig. 6, the plurality of tourmaline particles 30 may be distributed on the bottom wall 101 in a single circular shape or in a plurality of circular shapes. Alternatively, when the plurality of tourmaline particles 30 are in the shape of a plurality of circular rings, the plurality of circular rings may be distributed on the bottom wall 101 in the form of a collar with the center point of the bottom wall 101 as the center of circle. Thus, the same amount of tourmaline particles 30 can be used, and the range of radiation can be widened, so that the food and water can be more uniformly radiated.

In some embodiments of the present application, the tourmaline particles 30 are plurally provided, the first surface 301 of each tourmaline particle 30 has a vertical projection area on the bottom wall 101 of the container body 10, and the sum of the areas of the vertical projection areas of all the tourmaline particles 30 is 50-99% of the area of the bottom wall 101 of the container body 10.

The projection direction referred to in the vertical projection region is a direction perpendicular to the container body 10 where the tourmaline particles 30 are disposed. For example, when the container body 10 is a horizontal wall where the tourmaline particles 30 are disposed, the projection direction of the vertical projection area of the tourmaline particles 30 is a vertical direction. When the tourmaline particles 30 are arranged on the container body 10, the projection direction of the vertical projection area of the tourmaline particles 30 is an inclined direction having an angle of 30 degrees with the vertical direction, when the inclined wall having an angle of 30 degrees with the horizontal plane is formed at the position of the container body 10.

It is understood that the ratio of the tourmaline particles 30 to the bottom wall 101 of the container body 10 may affect the radiation range of the tourmaline particles 30. The sum of the areas of the vertical projection areas of the tourmaline particles 30 at least occupies half of the area of the bottom wall 101 of the container body 10, thereby ensuring that the far infrared radiation range is large. When the tourmaline particles 30 are discretely distributed, the rays of the single tourmaline particle 30 are dispersed, and the probability of the radiation range of the far infrared rays can cover the whole heating cavity 20.

In some embodiments of the present application, the sum of the areas of the vertical projection areas of all the tourmaline particles 30 is 55 to 75% of the area of the bottom wall 101 of the container body 10. Thus, not only the radiation area probability of the tourmaline particles 30 can cover the whole heating cavity 20, but also the dosage of the tourmaline particles 30 can be controlled.

As shown in fig. 8, in this embodiment, the far infrared ray action is detected on the same container 10 with different tourmaline particle 30 ratios, specifically, the container 10 with the volume of 1L, which has the same specification but the tourmaline particle 30 ratios of 50%, 55%, 60%, 65%, 70%, 75%, 80%, 85%, and 90%, is used, 500ml of water is filled, the container is heated for the same time 10min under the same pressure of 0.103Mpa, after the heating is finished, the LH-129A infrared power meter is used to measure the power density of the far infrared radiation, that is, the radiant energy power per unit area, and the detection results are shown in table 1.

TABLE 1 Power Density detection Meter for far infrared radiation

According to the detection result, the power density of far infrared radiation is increased along with the increase of the proportion of the tourmaline particles 30 in unit quantity at the stage that the proportion of the tourmaline particles 30 is 50-55% and 75-90%, but the increase is not obvious; at the stage that the proportion of the tourmaline particles 30 is 55-75%, the power density of the far infrared radiation is obviously increased. Therefore, the proportion of the tourmaline particles 30 selected by the application is in the range of 55-75%.

As shown in fig. 7, in some embodiments of the present application, when the first surface 301 of the tourmaline particle 30 protrudes from the inner surface of the container body 10, the height of the first surface 301 is a, the height of the second surface 302 is b, and the inlay ratio P of the tourmaline particle 30 is b/(a + b), 0.5P 0.7. The direction referred to for the height herein is also the direction perpendicular to the container body 10 where the tourmaline particles 30 are placed, and will not be described in detail herein.

The proportion that tourmaline particle 30 protrudes in the internal surface of container body 10 is concerned with the radiant efficiency of tourmaline particle 30 on the one hand, reduce blocking of container body 10 diapire 101, the convex proportion of tourmaline particle 30 is more, then be convenient for tourmaline particle 30 radiation far infrared, but on the other hand, the convex proportion of tourmaline particle 30 is bigger, then tourmaline particle 30's fixed degree of difficulty is bigger, consequently select moderate inlay proportion 0.5 to be less than or equal to P and be less than or equal to 0.7, both can guarantee tourmaline particle 30's far infrared radiant efficiency, can also guarantee that the scarf joint is firm between tourmaline particle 30 and the diapire 101 of container body 10.

In one embodiment, the tourmaline particle 30 may be formed in an ellipsoidal shape when being inserted such that the long axis direction of the tourmaline particle 30 is perpendicular to the plane of the bottom wall 101 of the container body 10, the lower half part of the tourmaline particle 30 occupying about 1/2 of the total height of the tourmaline particle 30 is inserted into the bottom wall 101 of the container body 10, and the remaining upper half part of the tourmaline particle 30 is exposed in the heating chamber 20, thereby making the connection between the tourmaline particle 30 and the bottom wall 101 of the container body 10 more stable and having a high far infrared radiation efficiency.

In some embodiments of the present application, the maximum particle size of the tourmaline particles 30 is 1mm to 10mm, the size of the tourmaline particles 30 affects the radiation level of the tourmaline particles 30 that can emit far infrared rays, and the larger the size of the tourmaline particles 30, the more far infrared rays can be emitted. And it is apparent that the radiation level of the tourmaline particle 30 having a particle size of 5mm is much greater than that of tourmaline powder having a particle size of 5 d, and the tourmaline particle 30 after the completion of the insertion can form a structure similar to an tourmaline layer on the bottom wall 101 of the container body 10, but has a thickness greater than that of the conventional 10 d-100 d tourmaline coating, meaning that the far infrared ray radiation amount of the tourmaline particle 30 of the present application is higher than that of the conventional tourmaline coating. Meanwhile, the tourmaline particles 30 can be easily embedded into the bottom wall 101 of the container body 10 due to the large particle size, thereby reducing the difficulty in manufacturing the cooking utensil 1000.

Wherein, the maximum grain size of the tourmaline particle 30 refers to the maximum distance between any two points of the tourmaline particle 30.

In some embodiments of the present application, the thickness of the container body 10 is 1mm-10mm, so that the container body 10 can have sufficient strength, can contain food materials, and can bear weight.

In particular, the container body 10 may have different thicknesses to accommodate the needs of different cooking appliances 100. For example, when the thickness of the container 10 is 1mm to 3mm, it can be used as a frying pan with a fast cooking speed, such as frying eggs and frying bread for breakfast. When the thickness of the container body 10 is 3mm to 7mm, it can be suitably used for cooking dishes or rice. The thickness of the container body 10 is 7mm-10mm, which can be suitable for stewing, such as porridge and vegetables.

As shown in fig. 7, in some embodiments of the present application, the container body 10 has a ceramic layer 40, and tourmaline particles 30 are embedded on the ceramic layer 40. Here, the container body 10 may be a single layer and the ceramic layer 40, and the container body 10 may be at least two layers and the inner layer is the ceramic layer 40. The ceramic layer 40 is not easy to heat and transfer heat, has slow heat dissipation and good heat preservation effect, and can reduce the conditions of pot sticking and rusting.

In other embodiments, the container body 10 may be a metal vessel, or a composite vessel.

In some embodiments of the present application, the tourmaline particles 30 are attached to the container body 10 by being integrally sintered after being embedded in the blank body of the container body 10. In manufacturing the cooking utensil 1000, the blank of the container body 10 is made of ceramic clay, and then the tourmaline particles 30 are inserted into the inner wall of the blank by a manual or mechanical method. At this moment, the embryo body is still wet and sticky, the tourmaline particle 30 can be easily inserted into the groove on the embryo body, and the tourmaline particle 30 is not easy to be embedded in the groove and is adhered to the clay on the inner wall of the groove. And the tourmaline particles 30 are inserted before the container body 10 is sintered, and the clay is compressed in the process of inserting the tourmaline particles 30, so that the extruded clay is infiltrated into the gaps and pores of the second surface 302 of the tourmaline particles 30. When the green body is fired thereafter, not only the clay green body itself is fired into the hard container body 10, but also the clay infiltrated into the gaps and pores of the second surface 302 of the tourmaline particle 30 is fired at a high temperature into agglomerates. And the agglomerates are caught at the gaps and the pores of the second surface 302 of the tourmaline particles 30 to firmly catch the tourmaline particles 30 to the container body 10.

When the tourmaline particles 30 are fixed by being embedded in the embryo of the container body 10, the first surface 301 of the tourmaline particles 30 may be also disposed to be flush with the inner surface of the container body 10, so that the inner surface of the container body 10 is smooth for cooking and washing.

It is understood that the surface of the purely natural tourmaline particle 30 is not regular in general, and a cutting process is required in forming the first surface 301 of the tourmaline particle 30 to be flush with the inner surface of the container body 10.

In some alternative embodiments, a plane, which is the first surface 301, is first processed on the tourmaline particle 30, and then the tourmaline particle 3 having the first surface 301 is inserted into the embryo body of the container body 10 such that the first surface 301 is flush with the inner surface of the embryo body.

In other alternative embodiments, the first surface 301 is a cut surface of the tourmaline particles 30 after cutting off a portion protruding from the inner surface of the container body 10. The processing process comprises embedding tourmaline particles 3 on the blank of the container body 10, sintering the blank into semi-finished product of the container body, and cutting off the part of tourmaline particles 30 protruding out of the inner surface of the semi-finished product of the container body to form the container body 10. The cut surface of the tourmaline particles 30 left on the inner surface of the container body 1 constitutes a first surface 301, and the first surface 301 is flush with the inner surface of the container body 10.

Of course, the present invention is not limited thereto, and for example, the tourmaline particle 30 may be inserted into the recess after the container body 10 is formed and provided with the recess, and at this time, the tourmaline particle 30 may be fixed in the recess by clamping, and the tourmaline particle 30 and the edge of the recess may be further fixed by sintering or thermal spraying after clamping and fixing.

In the description herein, references to the description of the terms "embodiment," "example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples described in this specification can be combined and combined by those skilled in the art.

While embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the application, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. A cooking appliance is characterized by comprising a container body, wherein a heating cavity is defined in the container body, a plurality of tourmaline particles are embedded on the inner wall of the container body, the surfaces of the tourmaline particles comprise first surfaces, and the first surfaces are exposed in the heating cavity.

2. The cooking appliance of claim 1, wherein the first surface protrudes from an inner surface of the container body, and the tourmaline particles further comprise a second surface buried in a wall of the pot of the container body.

3. The cooking appliance of claim 2, wherein the first surface of the tourmaline particles has a vertical projection area on the bottom wall of the container body when the tourmaline particles are embedded on the bottom wall of the container body, and the sum of the areas of the vertical projection areas of all the tourmaline particles on the bottom wall is 50-99% of the area of the bottom wall of the container body.

4. The cooking appliance of claim 3, wherein the sum of the areas of the vertical projection areas of all the tourmaline particles on the bottom wall is 55-75% of the area of the bottom wall of the container body.

5. The cooking appliance of claim 1, wherein the thickness of the container body is 1mm to 10 mm.

6. The cooking appliance according to claim 2, wherein when the first surface of the tourmaline particle protrudes from the inner surface of the container body, the height of the first surface is a, the height of the second surface is b, and the inlay ratio P ═ b/(a + b), 0.5 ≦ P ≦ 0.7 of the tourmaline particle.

7. The cooking appliance according to claim 1, wherein the tourmaline particles have a maximum particle size of 1mm to 10 mm.

8. The cooking appliance according to any one of claims 1 to 7, wherein the container body has a ceramic layer on which the tourmaline particles are embedded.

9. The cooking appliance according to any one of claims 1 to 7, wherein the tourmaline particles are attached to the container body by being integrally sintered after being embedded in an embryo body of the container body.

10. The cooking appliance of claim 9, wherein the first surface is a cut surface from which a portion of the tourmaline particles protruding from the inner surface of the container body is cut off, and the first surface is flush with the inner surface of the container body.

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