CN211883383U - Steam generator and cooking equipment comprising same - Google Patents

Abstract

The utility model provides a steam generator and contain its cooking equipment, steam generator include steam box and heating pipe, and steam box includes diapire, lateral wall and roof, and diapire, lateral wall and roof enclose to close and form the cavity, and steam generator is still including level sensor, first temperature sensor and second temperature sensor, and level sensor sets up in the cavity, and first temperature sensor sets up on the diapire, and second temperature sensor sets up on the roof. The utility model can ensure the stability of the steam flow based on the water level change in the water level sensor detection cavity; meanwhile, whether the materials are dried or not is detected through the first temperature sensor, so that the safety performance is improved; the second temperature sensor is combined for setting, the problem that the first temperature sensor cannot detect dry burning after being damaged due to water scales or corrosion and the like is avoided, and therefore safety performance is further improved.

Description

Steam generator and cooking equipment comprising same

Technical Field

The utility model relates to a cooking equipment technical field specifically, relates to a steam generator and contain its cooking equipment.

Background

A steam generator is a device for heating water into hot water to generate steam, and is widely applied to steam boxes and household appliances with steam cooking functions. Here, the steam box is taken as an example, the steam generator continuously heats water in the cavity to form steam during the use of the steam box, and an anti-dry heating structure is required to be arranged on the steam generator in order to prevent the cavity from being continuously heated without water.

Among the prior art, steam generator utilizes level sensor to carry out the dry combustion method control mostly, and level sensor sets up in the intracavity, can detect the water level of intracavity, and then realizes the accurate control of detection realization water level to the intracavity water level for the cavity can in time be mended, avoids the phenomenon that the intracavity appears lacking water and burns futilely. However, the water level sensor is used for dry burning prevention control, and due to the adoption of a single detection device, misjudgment is easy to occur, for example, when the water level sensor sends a water inlet signal, a certain amount of water may still remain in the cavity, or the water may not exist for a period of time, so that the stability of steam generation of the steam generator cannot be ensured, and certain potential safety hazards also exist because the steam generator may be dried.

In order to prevent dry burning, the steam generator which performs water supplementing control according to the height change of the water level detected by the water level sensor and the temperature change detected by the temperature sensor in the prior art is adopted, however, the temperature sensor is arranged at the bottom of the water containing tray of the steam generator and detects the temperature change at the bottom of the water containing tray, and after the temperature sensor is damaged due to scales or corrosion and the like, the problem that dry burning cannot be detected still exists, and certain potential safety hazards still exist.

SUMMERY OF THE UTILITY MODEL

In view of the above, the present invention provides a steam generator to at least partially solve the problems of the prior art.

The utility model provides a pair of steam generator, including steam box and heating pipe, steam box includes diapire, lateral wall and roof, and diapire, lateral wall and roof enclose to close and form the cavity, and steam generator is still including level sensor, first temperature sensor and second temperature sensor, and level sensor sets up in the cavity, and first temperature sensor sets up on the diapire, and second temperature sensor sets up on the roof.

The steam generator detects the water level change in the cavity based on the water level sensor, so as to send a water inlet signal and ensure that the water level in the cavity is always kept in a certain interval, thereby ensuring the stability of steam flow and improving the cooking effect; meanwhile, the first temperature sensor is positioned in the cavity and arranged on the bottom wall, and whether the first temperature sensor is dry-burned or not can be detected, so that the safety performance is improved; the second temperature sensor is combined for setting, the problem that the first temperature sensor cannot detect dry burning after being damaged due to water scales or corrosion and the like is avoided, and therefore safety performance is further improved.

Illustratively, the first temperature sensor is located within the cavity. So, because first temperature sensor is located the cavity, avoided the influence of the heat radiation of external heating pipe, improved the accuracy of temperature detection, can survey the temperature in the cavity accurately, moreover, first temperature sensor is with the water direct contact in the cavity, moisture content is burnt out, and when the temperature sudden change, first temperature sensor just can send the signal of dry combustion method to the accuracy of dry combustion method signal has been guaranteed.

Illustratively, the second temperature sensor is located outside the cavity. So, because the second temperature sensor is located the cavity outside, the second temperature sensor can avoid reasons such as incrustation scale or erosion to damage the problem that can't detect dry combustion method.

The heating pipe comprises a first heating pipe and a second heating pipe, and the power of the first heating pipe is different from that of the second heating pipe. Therefore, when the cooking starts, the steam generator can start the first heating pipe and the second heating pipe to heat water in the cavity at the same time, so that the time from normal temperature to boiling of the water is reduced, the generation of steam is accelerated, and the cooking effect is improved; in the cooking process, the first heating pipe or the second heating pipe can be selectively started to heat water in the cavity, and because the power of the first heating pipe is different from that of the second heating pipe, the temperature of steam is different, and the water content of the steam is different, so that the cooking requirements of different food materials are met; in addition, if the water in the cavity is used up in the using process of the steam generator, after water is fed again, the first heating pipe and the second heating pipe can be started simultaneously to rapidly heat newly-fed water to generate steam, so that the steam is kept uninterrupted, and the stability of the steam flow is enhanced.

Illustratively, the total power of the first heating pipe and the second heating pipe is P1, wherein P1 is 1600W ≦ 2400W. Applicants have found that below 1600 watts, P1 has the problem of heating too slowly; if P1 is greater than 2400 watts, there may be a safety issue. So set up, not only can reduce steam generator's preheating time, can also avoid the security problem.

Illustratively, the difference between the power of the first heating tube and the power of the second heating tube is P2, wherein P2 is 200W 600W. The applicant finds that if the power of the P2 is lower than 200W, the power of the first heating pipe is not greatly different from that of the second heating pipe, and when the heating is carried out independently, the temperature of generated steam is almost the same, the water content is also almost the same, so that the requirements for cooking different food materials are difficult to meet; p2, if greater than 600 watts, also has safety issues. So set up, not only can control the water content of steam in order to satisfy the culinary art demand of different edible materials, can also avoid the security problem.

For example, the first heating tube has a first end and a second end, the second heating tube has a first end and a second end, the first end of the first heating tube is connected to a first joint, the first end of the second heating tube is connected to a second joint, and the second end of the first heating tube and the second end of the second heating tube are connected to a third joint. So set up, the second end of first heating pipe and the second end of second heating pipe share a joint, have simplified the structure, have made things convenient for subsequent wiring, have also improved production efficiency.

Illustratively, the first heating tube and the second heating tube are both located outside the cavity and disposed on the bottom wall. So, the heating effect is better, and the heating is more even, and also does not occupy the space in the cavity.

For example, the first heating pipe is entirely U-shaped, the second heating pipe is also entirely U-shaped, an opening direction of the second heating pipe is the same as an opening direction of the first heating pipe, and the second heating pipe is located in the U-shape formed by the first heating pipe. So set up, first heating pipe and second heating pipe have great area of contact with the bottom of steam box, and heating effect is better, and the heating is more even.

Exemplarily, a third heating pipe which is integrally U-shaped is further arranged between the first heating pipe and the second heating pipe, and the power of the first heating pipe, the power of the second heating pipe and the power of the third heating pipe are different. So set up, can launch first heating pipe and/or second heating pipe and/or third heating pipe according to the condition selectivity of difference to can reduce steam generator's preheating time, strengthen the uniformity of steam flow, more can control the water content of steam in order to satisfy the culinary art demand of different food materials in a flexible way.

Exemplarily, the number of the third heating pipes is at least two, and the powers of at least two of the third heating pipes are different from each other. So set up, make steam heating gear control more meticulous to the water content that more can nimble control steam is in order to satisfy the culinary art demand of different food materials.

According to another aspect of the present invention, there is also provided a cooking apparatus including the steam generator as described above. Since the above steam generator has the above technical effects, the cooking apparatus including the above steam generator also necessarily has corresponding technical effects.

Illustratively, the cooking equipment is a steam box or a steaming and baking all-in-one machine.

Drawings

The above and other objects, features and advantages of the present invention will become more apparent by describing in more detail embodiments of the present invention with reference to the attached drawings. The accompanying drawings are included to provide a further understanding of the embodiments of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the invention and not to limit the invention. In the drawings, like reference numbers generally represent like parts or steps.

Fig. 1 is a perspective view of a steam generator according to an embodiment of the present invention;

FIG. 2 is a bottom view of the steam generator of FIG. 1;

fig. 3 is an internal structure view of the steam generator shown in fig. 1.

Wherein the figures include the following reference numerals:

10-steam box;

11-a top wall;

111-steam tube;

112-a water inlet pipe;

12-a bottom wall;

13-side wall;

14, a cavity;

20-heating a tube;

210 — a first heating tube;

211-first end of first heating tube

212-second end of first heating tube

220-second heating pipe

221-first end of second heating tube

222-second end of second heating tube

30-first joint

40-second joint

50-third joint

60-water level sensor

70-first temperature sensor

80-second temperature sensor

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, exemplary embodiments according to the present invention will be described in detail below with reference to the accompanying drawings. It is to be understood that the described embodiments are merely exemplary of the present invention and are not intended to limit the invention to the particular embodiments described herein. Based on the embodiments of the present invention described in the present application, all other embodiments obtained by those skilled in the art without creative efforts shall fall within the protection scope of the present invention.

As shown in fig. 1 to 3, a steam generator according to an embodiment of the present invention includes a steam box 10 and a heating pipe 20.

The steam box 10 comprises a bottom wall 12, a side wall 13 and a top wall 11, wherein the bottom wall 12, the side wall 13 and the top wall 11 enclose a cavity 14, and the cavity 14 is used for containing water.

The heating pipe 20 is used to heat water in the chamber 14 into hot water to generate steam.

The steam generator further comprises a water level sensor 60, a first temperature sensor 70 and a second temperature sensor 80, wherein the water level sensor 60 is arranged in the cavity 14 and can output different water level signals along with the change of the water level so as to detect the change of the water level in the cavity 14 and send a water inlet signal so as to ensure that the water level in the cavity 14 is always kept in a certain interval, and the stable amount of steam cannot be kept because the water level is too low, so that the certain interval is, for example, a space of one third to two thirds of the volume of the cavity, and specifically, the certain interval can be a space of one half of the volume of the cavity. A first temperature sensor 70 is provided on the bottom wall 12. The second temperature sensor 80 is disposed on the top wall 11.

The steam generator detects the water level change in the cavity 14 based on the water level sensor 60, so as to send a water inlet signal, ensure that the water level in the cavity 14 is always kept in a certain interval, ensure the stability of steam flow and improve the cooking effect; meanwhile, whether the material is dried or not can be detected through the first temperature sensor 70, so that the safety performance is improved; and the second temperature sensor 80 is combined, so that after the first temperature sensor 70 is damaged due to scales or corrosion and the like, even if the first temperature sensor 70 cannot detect dry burning, the heating pipe 20 is continuously heated to enable the temperature to be higher and higher, and when the temperature reaches the set temperature of the second temperature sensor 80, the second temperature sensor 80 sends out a dry burning signal, so that the safety performance is further improved.

The water level sensor 60 may be floating on the water surface in the cavity 14, but the water level sensor 60 is not limited thereto as long as it can detect the water level change in the cavity 14 and thus send a water inlet signal.

Illustratively, the first temperature sensor 70 is located within the cavity 14. So, because first temperature sensor 70 is located cavity 14, avoided the influence of the heat radiation of external heating pipe, improved the accuracy of temperature detection, can survey the temperature in the cavity accurately, moreover, first temperature sensor 70 is with the water direct contact in cavity 14, moisture content is burnt out, and when the temperature sudden change, first temperature sensor 70 just can send the signal of dry combustion method to the accuracy of signal of dry combustion method has been guaranteed.

Illustratively, the second temperature sensor 80 is located outside the cavity 14. Thus, the second temperature sensor 80 is located outside the cavity 14, and the second temperature sensor 80 can avoid the problem that the dry burning cannot be detected due to damage caused by scales or corrosion.

In the steam generator of the present invention, the heating pipe 20 may be a heating pipe in the prior art.

As a preferred embodiment, the heating pipe 20 may further include a first heating pipe 210 and a second heating pipe 220, and the power of the first heating pipe 210 is different from the power of the second heating pipe 220. Therefore, when cooking starts, the first heating pipe 210 and the second heating pipe 220 can be started to heat water in the cavity at the same time, so that the time from normal temperature to boiling of water is reduced, the generation of steam is accelerated, and the cooking effect is improved; in the cooking process, the first heating pipe 210 or the second heating pipe 220 can be selectively started to heat water in the cavity, and because the power of the first heating pipe 210 is different from that of the second heating pipe 220, the temperature of steam is different, and the water content of the steam is different, so that the cooking requirements of different food materials are met; in addition, if the water in the cavity is used up in the using process of the steam generator, after water is fed again, the first heating pipe 210 and the second heating pipe 220 can be started simultaneously to heat the newly-fed water rapidly to generate steam, so that the steam is kept uninterrupted, and the stability of the steam flow is enhanced. It is visible, the utility model discloses a steam generator can launch first heating pipe and/or second heating pipe according to the condition selectivity of difference to reduce steam generator's preheating time, strengthen the uniformity of steam flow, the water content of control steam is in order to satisfy the culinary art demand of different edible materials.

Illustratively, the total power of the first heating pipe 210 and the second heating pipe 220 is P1, wherein P1 is 1600 w 2400 w, for example, P1 is 1600 w, 1800 w, 2000 w, 2200 w and 2400 w, and the applicant found that if P1 is lower than 1600 w, the heating is too slow; if P1 is greater than 2400 watts, there may be a safety issue. The arrangement that P1 is more than or equal to 1600 watts and less than or equal to 2400 watts can not only reduce the preheating time of the steam generator, but also avoid the safety problem.

Illustratively, the difference between the power of the first heating pipe 210 and the power of the second heating pipe 220 is P2, wherein P2 is 200 W.ltoreq.600W. For example, the P2 is 200 w, 400 w, 600 w, and the applicant finds that if the P2 is less than 200 w, the power of the first heating pipe 210 is not much different from that of the second heating pipe 220, and when the first heating pipe is heated alone, the temperature of generated steam is not much and the water content is not much, so that the requirements for cooking different food materials are difficult to meet; p2, if greater than 600 watts, also has safety issues. The setting that P2 is more than or equal to 200 watts and less than or equal to 600 watts not only can control the water content of steam in order to satisfy the culinary art demand of different food materials, can also avoid the security problem.

As an example, the first heating tube 210 has a first end 211 and a second end 212, the second heating tube 220 has a first end 221 and a second end 222, the first end 211 of the first heating tube is connected to the first joint 30, the first end 221 of the second heating tube is connected to the second joint 40, and the second end 212 of the first heating tube and the second end 222 of the second heating tube are connected to the third joint 50. Because the first joint 30, the second joint 40 and the third joint 50 are all used for connecting power lines, the second end 212 of the first heating tube and the second end 222 of the second heating tube share one joint, so that the structure is simplified, the subsequent wiring is facilitated, and the production efficiency is also improved.

As an example, the first heating pipe 210 and the second heating pipe 220 are both disposed at the bottom of the steam box 10 and outside the cavity. So, the heating effect is better, and the heating is more even, and also does not occupy the space in the cavity. Of course, the first heating pipe 210 and the second heating pipe 220 may also be located in the cavity, which is not described herein.

For example, the first heating pipe 210 is U-shaped as a whole, the second heating pipe 220 is also U-shaped as a whole, the opening direction of the second heating pipe 220 is the same as the opening direction of the first heating pipe 210, and the second heating pipe 220 is located in the U-shape formed by the first heating pipe 210, so that for convenience of distinction, the first heating pipe 210 may also be called an external heating pipe, and the second heating pipe 220 may also be called an internal heating pipe. So set up, first heating pipe 210 and second heating pipe 220 are inside and outside and arrange side by side, have great area of contact with the bottom of steam box 10, and the heating effect is better, and the heating is more even. Of course, in an embodiment not shown, the first heating tube 210 may also be integrally formed in a "one" shape, and the second heating tube 220 may also be integrally formed in a "one" shape, or in another shape.

In an embodiment not shown, a third heating pipe having an overall U-shape may be further disposed between the first heating pipe 210 and the second heating pipe 220, and the power of the first heating pipe, the power of the second heating pipe, and the power of the third heating pipe are different from each other. So set up, can launch first heating pipe and/or second heating pipe and/or third heating pipe according to the condition selectivity of difference to can reduce steam generator's preheating time, strengthen the uniformity of steam flow, and more can control the water content of steam in order to satisfy the culinary art demand of different food materials in a flexible way. Since the third heating pipe is located between the first heating pipe 210 and the second heating pipe 220, the third heating pipe may also be called an intermediate heating pipe.

For example, the number of the third heating pipes may be one, or may be at least two, and when the number of the third heating pipes is at least two, the power of at least two third heating pipes is different. So set up, make steam heating gear control more meticulous to the water content that more can nimble control steam is in order to satisfy the culinary art demand of different food materials.

As an exemplary illustration, the first heating tube 210 is fixed with the second heating tube 220. With this arrangement, when the heating pipe 20 is fixedly installed at the bottom of the steam box, the first heating pipe 210 and the second heating pipe 220 are installed as a single body, which can simplify the installation process.

In addition, the steam pipe 111 and the water inlet pipe 112 may be further provided on the top wall 11, so that the steam box 10 is simple in structure and convenient to manufacture. Optionally, the inlet pipe 112 for water inlet into the cavity may be integrally formed with the top wall 11, or may be connected to the top wall 11; the steam pipe 111 for discharging steam may be integrally formed with the ceiling wall 11, or may be connected to the ceiling wall 11.

According to another aspect of the present invention, there is also provided a cooking apparatus including the steam generator as described above. Since the above-mentioned steam generator has the above-mentioned technical effects, the cooking device including the above-mentioned steam generator also has corresponding technical effects, and the detailed description thereof is omitted herein.

Illustratively, the cooking appliance may be a steam box.

Various configurations, existing or as may come into existence in the future, may be employed for other components of the steam box. The present invention is not intended to be limited thereto. Accordingly, these components will not be described in detail herein.

In other embodiments, the cooking device can also be a steaming and baking all-in-one machine. Various structures which are present or may appear in the future can be adopted for other parts of the steaming and baking all-in-one machine. The present invention is not intended to be limited thereto. Accordingly, these components are not described in detail herein.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the orientation words such as "upper", "lower", "top" and "bottom" and the like are generally based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, and in the case of not making a reverse explanation, these orientation words do not indicate and 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 interpreted as limiting the scope of the present invention; the terms "inner" and "outer" refer to the interior and exterior relative to the contours of the components themselves.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe the spatial relationship of one or more components or features shown in the figures to other components or features. It is to be understood that the spatially relative terms are intended to encompass not only the orientation of the component as depicted in the figures, but also different orientations of the component in use or operation. For example, if an element in the drawings is turned over in its entirety, the articles "over" or "on" other elements or features will include the articles "under" or "beneath" the other elements or features. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". Further, these components or features may also be positioned at various other angles (e.g., rotated 90 degrees or other angles), all of which are intended to be encompassed herein.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, elements, components, and/or combinations thereof, unless the context clearly indicates otherwise.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein.

The present invention has been described in terms of the above embodiments, but it is to be understood that the above embodiments are for purposes of illustration and description only and are not intended to limit the invention to the described embodiments. Furthermore, it will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that many more modifications and variations are possible in light of the teaching of the present invention and are within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (13)

1. A steam generator comprises a steam box and a heating pipe, wherein the steam box comprises a bottom wall, a side wall and a top wall, and a cavity is formed by enclosing the bottom wall, the side wall and the top wall;

the water level sensor is arranged in the cavity;

the first temperature sensor is arranged on the bottom wall;

the second temperature sensor is disposed on the top wall.

2. The steam generator of claim 1, wherein the first temperature sensor is located within the cavity.

3. The steam generator of claim 1, wherein the second temperature sensor is located outside the cavity.

4. The steam generator of claim 1, wherein the heat pipes include a first heat pipe and a second heat pipe, and a power of the first heat pipe is different from a power of the second heat pipe.

5. The steam generator of claim 4, wherein the total power of the first and second heat pipes is P1, wherein 1600 watts P1 2400 watts.

6. The steam generator of claim 5, wherein the difference between the power of the first heat pipe and the power of the second heat pipe is P2, wherein 200 watts P2 600 watts.

7. The steam generator of any of claims 4-6, wherein the first heat pipe has a first end and a second end, the second heat pipe has a first end and a second end, the first end of the first heat pipe has a first fitting coupled thereto, the first end of the second heat pipe has a second fitting coupled thereto, and the second end of the first heat pipe and the second end of the second heat pipe are commonly coupled to a third fitting.

8. The steam generator of claim 7, wherein the first and second heating tubes are both located outside the cavity and disposed on the bottom wall.

9. The steam generator of claim 8, wherein the first heating tube is generally U-shaped, the second heating tube is also generally U-shaped, the second heating tube opens in the same direction as the first heating tube, and the second heating tube is positioned within the U-shape formed by the first heating tube.

10. The steam generator of claim 9, wherein a third heating tube having an overall U-shape is further disposed between the first heating tube and the second heating tube, and the power of the first heating tube, the power of the second heating tube, and the power of the third heating tube are different from each other.

11. The steam generator of claim 10, wherein the number of the third heating tubes is at least two, and the power of at least two of the third heating tubes is different.

12. A cooking apparatus, characterized in that it comprises a steam generator according to any one of claims 1 to 11.

13. The cooking apparatus according to claim 12, wherein the cooking apparatus is a steamer or a combined steamer and toaster.

Images