CN206867070U - A kind of cooking apparatus - Google Patents

Abstract

The cooking utensil of the present utility model comprises an inner tank and a heating part, the inner tank includes an upper tank body and a lower tank body connected to each other, the connection between the upper tank body and the lower tank body forms a dividing line, and the The heating part is located outside the lower bladder, the upper bladder is surrounded by a first side wall, the first side wall has a maximum wall thickness T _1max , the lower bladder is surrounded by a second wall, The second wall portion has a minimum wall thickness T _2min , wherein T _1max <T _2min . This can not only speed up the temperature rise rate of the thinner and far away from the heating part, but also make up for the defects of uneven heating speed and uneven heating caused by the different distance from the heating part; It can prevent the food in the gallbladder from sticking to the pot caused by its heating up too fast; in addition, the lower gallbladder can also store energy. After the heating stops, because the lower gallbladder is thicker, the stored heat can make the food in the gallbladder Continuous boiling and/or keeping warm.

Description

a cooking utensil

technical field

The utility model relates to a cooking utensil, in particular to a cooking utensil capable of uniform heating.

Background technique

Cooking utensils such as rice cookers and electric pressure cookers have become must-have products at home due to their ease of use. These cooking utensils all have inner tanks for accommodating food. In order to improve the taste of the cooked food of these products, many companies construct the inner tanks as upper and lower tanks with boundaries, and realize The airflow in the gallbladder circulates so that the food in the gallbladder is heated evenly.

However, in the existing products, this kind of gallbladder mainly generates heat through the correspondence between the lower gallbladder and the heating part, and does not take into account the unevenness of the heat absorption of the walls of the upper and lower gallbladders, and the wall thickness of the common lower gallbladder. During continuous heating, it is easy to cause the problem of sticky bottom due to uneven heating and/or excessive heating.

Utility model content

The technical problem to be solved by the utility model is to provide a cooking utensil that is evenly heated and not easy to stick to the bottom.

In order to achieve the above object, the technical scheme of the utility model is as follows:

A cooking utensil, comprising an inner tank and a heating part, the inner tank includes an upper tank body and a lower tank body connected to each other, the connection between the upper tank body and the lower tank body forms a dividing line, and the heating part Located on the outside of the lower bladder, the upper bladder is surrounded by a first side wall, the first side wall has a maximum wall thickness T _1max , the lower bladder is surrounded by a second wall, the The second wall section has a minimum wall thickness T _2min , wherein T _1max <T _2min .

Further, the minimum wall thickness T _2min of the second wall part and the maximum wall thickness T _1max of the first side wall form a thickness ratio N, wherein N=T _2min /T _1max , and 1<N≤1.2.

Further, the minimum wall thickness T _2min of the second wall portion is selected from the following range: 1.5mm≦T _2min ≦5mm.

Further, the wall thickness of the second wall portion is uniform, and both have a minimum wall thickness T _2min .

Further, the wall thickness of the lower end of the first side wall is greater than that of the upper end.

Further, the minimum wall thickness T _2min of the second wall portion and the maximum wall thickness T _1max of the first side wall form a thickness difference ΔT, wherein ΔT=T _2min −T _1max , and 0<ΔT≤3mm.

Further, the upper bladder is surrounded by a first side wall in the shape of a truncated cone.

Further, the upper bladder is surrounded by a convex first side wall.

Further, the lower bladder is surrounded by a spherical or U-shaped second wall protruding downward from the boundary.

Further, the heating part is located below the boundary line.

The beneficial effects of the utility model:

The cooking utensil of the present utility model comprises an inner tank and a heating part, the inner tank includes an upper tank body and a lower tank body connected to each other, the connection between the upper tank body and the lower tank body forms a dividing line, and the The heating part is located outside the lower bladder, the upper bladder is surrounded by a first side wall, the first side wall has a maximum wall thickness T _1max , the lower bladder is surrounded by a second wall, The second wall portion has a minimum wall thickness T _2min , wherein T _1max <T _2min . That is, the wall thickness of the lower bladder body is greater than that of the upper bladder body. By configuring the lower bladder body to have a larger wall thickness than the upper bladder body, on the one hand, it is possible to speed up the process of making the thinner and farther away from the heating part. The heating speed of the upper tank makes up for the defects of uneven heating speed and uneven heating caused by the different distance from the heating part; on the other hand, the thicker thickness of the lower tank can also prevent it The problem of food paste in the gallbladder; in addition, the lower gallbladder can also store energy. After the heating is stopped, because the lower gallbladder is thicker, the stored heat energy can make the food in the gallbladder continue to boil and/or keep warm.

Further, the minimum wall thickness T _2min of the second wall part and the maximum wall thickness T _1max of the first side wall form a thickness ratio N, wherein N=T _2min /T _1max , and 1<N≤1.2. If N≤1, it cannot be guaranteed that the minimum wall thickness of the second wall is greater than the maximum wall thickness of the first side wall; when N>1.2, because the thickness difference between the first side wall and the second side wall is too high, and There will be a problem of uneven heat preservation, and the strength of the gallbladder at the boundary between the upper and lower gallbladders will also be affected.

Further, the minimum wall thickness T _2min of the second wall portion is selected from the following range: 1.5mm≦T _2min ≦5mm. When the wall thickness of the second wall is less than 1.5mm, it is easy to cause the phenomenon of paste pot due to the small thickness heating too fast; when the wall thickness of the second wall is greater than 5mm, the lower tank will affect the heating efficiency due to the excessive thickness. At the same time, the excessive wall thickness also causes the weight of the bladder body to increase, which is not convenient for users to carry, and also leads to an increase in production and transportation costs.

Further, the wall thickness of the second wall portion is uniform, and both have a minimum wall thickness T _2min . The uniform thickness of the second wall is beneficial to the full and uniform heat absorption of the entire lower tank body and the heating part, and at the same time, the manufacturing process is simple and easy to realize.

Further, the wall thickness of the lower end of the first side wall is greater than that of the upper end. Make the wall thickness of the lower end of the first side wall larger and the wall thickness of the upper end smaller, and more preferably transition evenly from bottom to top, so that the temperature rise of the first side wall farther away from the heating part is only considered under the influence of wall thickness The faster the speed, the better to make up for the problem of different speeds of temperature rise caused by distance.

Further, the minimum wall thickness T _2min of the second wall portion and the maximum wall thickness T _1max of the first side wall form a thickness difference ΔT, where ΔT=T _2min −T _1max , and 0<ΔT≤1mm. If △T≤0, it cannot guarantee that the minimum wall thickness of the second wall is greater than the maximum wall thickness of the first side wall; when △T>1mm, because the thickness difference between the first side wall and the second side wall is too high , will produce the problem of uneven heat preservation, and the strength of the bile body at the boundary line between the upper and lower bile body will also be affected.

Further, the upper bladder is surrounded by a first side wall in the shape of a truncated cone. The frustum-shaped first side wall makes the steam inside the inner container flow along the inner side of the upper container body toward the center of the inner container at the boundary line of the upper and lower container bodies, and form convection with the upper layer of food materials, which is beneficial to the heating of the food in the container.

Further, the upper bladder is surrounded by a convex first side wall. The convex first side wall makes the steam inside the inner tank flow along the inner side of the upper tank body toward the center of the inner tank at the boundary line of the upper and lower tank bodies, and form convection with the upper layer of food materials, which is beneficial to the heating of the food in the tank.

Further, the lower bladder is surrounded by a spherical or U-shaped second wall protruding downward from the boundary. The downwardly protruding spherical crown or U-shaped lower tank body, because the entire wall surface is a continuous transition, without sharp corners or corrugated parts, can fully interact with the heating part and generate heat, making the heating even.

Further, the heating part is located below the boundary line. In this way, on the one hand, it is ensured that sufficient heat source is provided for the food accommodated in the gall; on the other hand, waste caused by excessive heat source is avoided.

Description of drawings

In order to illustrate the technical solutions of the embodiments of the present invention more clearly, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

Fig. 1 is a sectional view of an electric cooker according to Embodiment 1 of the utility model;

Fig. 2 is a cross-sectional view of an inner container according to Embodiment 1 of the present utility model;

Fig. 3 is a cross-sectional view of the inner container according to the second embodiment of the present invention.

detailed description

It should be understood that the specific embodiments described here are only used to explain the utility model, and are not intended to limit the utility model.

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present utility model are only used to explain the relationship between the components in a certain posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

In addition, the descriptions related to "first", "second" and so on in the present application are only for the purpose of description, and should not be understood as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of these features. In addition, the technical solutions of the various embodiments can be combined with each other, but it must be based on the realization of those skilled in the art. When the combination of technical solutions is contradictory or cannot be realized, it should be considered that the combination of technical solutions Exist, also not within the scope of protection that the utility model requires.

Embodiment one:

As shown in Figure 1 , a sectional view of an electric rice cooker 100 is shown, the electric rice cooker 100 includes an inner container 130 and a heating portion 140; The junction of the upper bladder 131 and the lower bladder 132 forms a boundary line 133, the heating portion 140 is located outside the lower bladder 132, the upper bladder 131 is surrounded by a first side wall, the The first side wall has a maximum wall thickness T _1max , and the lower tank 132 is surrounded by a second wall portion, and the second wall portion has a minimum wall thickness T _2min , wherein T _1max <T _2min .

That is, the wall thickness at any position of the lower courage body 132 is greater than the wall thickness at any position of the upper courage body 131, and by configuring the lower courage body 132 to have a larger wall thickness than the upper courage body 131, this design has The following advantages:

1. For the existing inner tank with constant wall thickness, the thickness of the upper and lower tank bodies is not distinguished, but because the lower tank body is closer to the heating part, it can heat up earlier, while the upper tank body is far away from the heating part, only Heat up through heat transfer from the wall of the lower gallbladder body, which makes the temperature rise rate of the whole gallbladder body uneven, resulting in uneven heating of the food inside the upper and lower gallbladder bodies, and long-term use under such uneven heating conditions It also has a bad effect on the strength of the inner tank itself; compared with this, this inner tank of the present utility model can accelerate the temperature rise rate of the upper tank body that is thinner and far away from the heating part, making up for the difference in the distance between the heating part and the heating part. The defects of uneven heating speed and uneven heating caused by it;

2. The thickness of the lower gallbladder is thicker, which can also prevent the food in the gallbladder from sticking to the pot caused by the rapid temperature rise.

3. The lower tank can also store energy. After the heating stops, because the lower tank is thicker, the stored heat energy can keep the food in the tank continuously boiling and/or keeping warm.

Specifically, as shown in FIG. 1 , the electric rice cooker 100 further includes a cooker body 110 and a cooker cover 120 . The heating part 140 is an electromagnetic coil, and the inner tank 130 is an iron inner tank capable of inductively heating with the coil of the electromagnetic coil. The pot body 110 includes a heat preservation cover 111 and a middle ring 112, the inner liner 130 is arranged inside the heat preservation cover 111 of the pot body 110, and the mouth of the inner liner 130 is supported on the middle ring 112; The electromagnetic wire tray is arranged on the lower part of the outer side of the heat preservation cover 111 , and the position of the electromagnetic wire tray corresponds to the bottom 1321 and the arc portion 1322 of the lower tank 132 . In this way, the heating part 140 can fully heat the lower bladder 132 . In other embodiments, the heating part 140 may also be a heating plate disposed corresponding to the bottom 1321 of the lower bladder 132 .

Further, the minimum wall thickness T _2min of the second wall part and the maximum wall thickness T _1max of the first side wall form a thickness ratio N, wherein N=T _2min /T _1max , and 1<N≤1.2. If N≤1, it cannot be guaranteed that the minimum wall thickness of the second wall is greater than the maximum wall thickness of the first side wall; when N>1.2, because the thickness difference between the first side wall and the second side wall is too high, and There will be a problem of uneven heat preservation, and the strength of the gallbladder at the boundary between the upper and lower gallbladders will also be affected.

Further, the minimum wall thickness T _2min of the second wall portion is selected from the following range: 1.5mm≤T _2min ≤5mm. The smaller the thickness of the second wall, the faster the heat conduction speed, and the more prone to the problem of sticking; when the thickness of the second wall is less than 1.5mm, the phenomenon of sticking will easily occur due to the small thickness and too fast heating ; When the wall thickness of the second wall portion is greater than 5mm, the lower bladder body 132 will affect the heating efficiency due to the excessive thickness. Increased transportation costs. Preferably, the minimum wall thickness T _2min of the second wall portion is selected from the following range: 2mm≦T _2min ≦3mm. The second wall portion within this thickness range can achieve uniform heating to avoid sticky pots and provide better thermal efficiency at the same time.

Further, the wall thickness of the second wall portion is uniform, and both have a minimum wall thickness T _2min . The uniform thickness of the second wall is beneficial to the uniform heat absorption of the entire lower tank body 132 and the electromagnetic coil of the heating part 140 , and the manufacturing process is simple and easy to realize. In other embodiments, for example, in the case where the heating portion 140 is a heating plate corresponding to the bottom 1321 of the lower bladder 132, the thickness of the bottom 1321 of the lower bladder 132 may be suitably greater than the arc portion 1322 and the second wall above The thickness of the part is differently designed in this way, and the wall thickness farther away from the courage body can be made smaller according to the distance between the courage body and the heating part 140, so as to improve its heating rate and minimize the uneven temperature rise of the courage body.

Further, the wall thickness of the lower end of the first side wall is greater than that of the upper end. Make the wall thickness of the lower end of the first side wall larger and the wall thickness of the upper end smaller, and more preferably transition evenly from bottom to top, so that the temperature rise of the first side wall farther away from the heating part is only considered under the influence of wall thickness The faster the speed, the better to make up for the problem of different speeds of temperature rise caused by distance.

Further, the minimum wall thickness T _2min of the second wall portion and the maximum wall thickness T _1max of the first side wall form a thickness difference ΔT, where ΔT=T _2min −T _1max , and 0<ΔT≤1mm. If △T≤0, it cannot guarantee that the minimum wall thickness of the second wall is greater than the maximum wall thickness of the first side wall; when △T>1mm, because the thickness difference between the first side wall and the second side wall is too high , can produce the problem of uneven heat preservation, and the strength of the gallbladder body at the boundary line 133 of the upper and lower gallbladder body will also be affected.

Further, as shown in FIG. 2 , the upper bladder 131 is surrounded by a convex first side wall. The convex first side wall makes the steam inside the inner tank flow along the inner side of the upper tank body 131 towards the center of the inner tank at the boundary line 133 of the upper and lower tank bodies, and form convection with the upper layer of food materials, as indicated by arrow C in the figure It is beneficial to the heating of the food in the gallbladder.

Further, as shown in FIG. 2 , the lower bladder 132 is surrounded by a U-shaped second wall protruding downward from the boundary line 133 . The U-shape includes a bottom 1321 and an arc-shaped portion 1322. Since the entire wall surface is a continuous transition without sharp corners or corrugated portions, it can more fully interact with the heating portion and generate heat, so that the heating is uniform. In other embodiments, the lower bladder 132 may also be a spherical crown protruding downward from the boundary line 133 .

Further, the heating portion 140 is located below the boundary line 133 . In this way, on the one hand, it is ensured that sufficient heat source is provided for the food accommodated in the gall; on the other hand, waste caused by excessive heat source is avoided.

Embodiment two:

The difference between the second embodiment and the first embodiment is that, as shown in FIG. 3 , the upper bladder body 131 is surrounded by a first side wall in the shape of a truncated cone. The frustum-shaped first side wall makes the steam inside the inner tank flow along the inner side of the upper tank body toward the center of the inner tank at the boundary line of the upper and lower tank bodies, and form convection with the upper layer of food materials, which is indicated by arrow C in the figure, and there is Conducive to the heating of food in the gallbladder.

As shown in FIG. 3 , a protruding ring 134 is also provided on the upper tank body 131 , and the inner tank 130 is supported on the middle ring of the pot body through the protruding ring 134 (not shown in the figure).

The above is only a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Anyone skilled in the art can easily think of changes or substitutions within the technical scope disclosed in the present invention. All should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims (10)

1. A cooking utensil, comprising an inner container and a heating portion, the inner container includes an upper courage body and a lower courage body connected to each other, the junction of the upper courage body and the lower courage body forms a dividing line, the The heating part is located outside the lower bladder, and it is characterized in that the upper bladder is surrounded by a first side wall, the first side wall has a maximum wall thickness T _1max , and the lower bladder is formed by a second wall Part is formed around, and the second wall part has a minimum wall thickness T _2min , wherein T _1max <T _2min . 2. The cooking appliance according to claim 1, wherein the minimum wall thickness T _2min of the second wall part and the maximum wall thickness T _1max of the first side wall form a thickness ratio N, wherein N=T _2min /T _1max , and 1<N≤2.2. 3 . The cooking appliance according to claim 1 , wherein the minimum wall thickness T _2min of the second wall portion is selected from the following range: 1.5mm≦T _2min ≦5.5mm. 4. The cooking utensil according to claim 1, characterized in that, the wall thickness of the second wall portion is uniform, and both have a minimum wall thickness T _2min . 5. The cooking appliance according to claim 1, characterized in that, the wall thickness of the lower end of the first side wall is greater than the thickness of the upper end thereof. 6. The cooking utensil according to claim 1, wherein the minimum wall thickness T _2min of the second wall part and the maximum wall thickness T _1max of the first side wall form a thickness difference ΔT, wherein ΔT=T _2min − T _1max , and 0<ΔT≤3mm. 7. The cooking appliance according to claim 1, characterized in that, the upper tank is surrounded by a first side wall in the shape of a truncated cone. 8 . The cooking appliance according to claim 1 , wherein the upper tank is surrounded by a convex first side wall. 9. The cooking utensil according to claim 7 or 8, characterized in that, the lower tank is surrounded by a spherical crown or a U-shaped second wall protruding downward from the boundary. 10. The cooking appliance according to claim 1, wherein the heating portion is located below the boundary line.