CN212912782U - Steam generator and steam cooking device - Google Patents

Abstract

The utility model provides a steam generator and steam cooking equipment. The steam generator includes: the heating cavity is internally provided with a heating cavity, the heating cavity is a food-grade heating cavity, and the heating cavity is provided with a water inlet and a steam outlet which are communicated with the heating cavity; and the heating piece is arranged corresponding to the heating cavity and used for heating the heating cavity. In this application, because the heating chamber is food level heating chamber, can not produce harmful substance at the in-process that contacts and use for a long time with water, can effectively guarantee steam cooking equipment's food safety.

Description

Steam generator and steam cooking device

Technical Field

The application relates to the technical field of steam cooking equipment, in particular to a steam generator and steam cooking equipment.

Background

At present, steam cooking technology is cooking technology which caters for the health of the public. Among them, the steam generator is a core component of the steam cooking apparatus. However, in the existing steam generator, water directly contacts the inner cavity of the aluminum alloy in the using process, and the food safety is easily influenced after long-time use.

SUMMERY OF THE UTILITY MODEL

In order to solve at least one of the above technical problems, an object of the present application is to provide a steam generator.

Another object of the present application is to provide a steam cooking apparatus including the above steam generator.

In order to achieve the above object, according to an embodiment of a first aspect of the present invention, there is provided a steam generator including: the heating cavity is internally provided with a heating cavity, the heating cavity is a food-grade heating cavity, and the heating cavity is provided with a water inlet and a steam outlet which are communicated with the heating cavity; and the heating piece is arranged corresponding to the heating cavity and used for heating the heating cavity.

According to the utility model discloses steam generator is provided according to the embodiment of first aspect, including heating chamber body and heating element. The heating cavity is provided with a heating cavity, the heating cavity is communicated with a water source through a water inlet, the water source is guaranteed to supply water to the heating cavity, and steam generated by heating water is discharged through a steam outlet under the heating of the heating element. Because the heating cavity is a food-grade heating cavity, harmful substances cannot be generated in the process of contacting water and using the heating cavity for a long time, and the food safety of the steam cooking equipment can be effectively ensured.

In addition, according to the present invention, the steam generator in the above embodiments may further have the following additional technical features:

in the above embodiment, the steam generator further includes: the heat conducting piece is positioned outside the heating cavity and connected with the heating cavity, and the heating piece is fixedly connected with the heat conducting piece.

In this scheme, heat-conducting member and heating member are located heating chamber outside and fixed connection, and the heating member can produce the heat to conduct heat-conducting member, and heat-conducting member links to each other with the heating cavity, therefore can be to heating cavity transmission heat. Compare in the scheme of heating pipe snap-on the outer wall of heating cavity, the heat-conducting piece and the heating member combined action of this scheme are favorable to increasing the heated area of heating cavity to improve the heated efficiency and the homogeneity of being heated of heating cavity, and then improve steam generator's steam production efficiency. Simultaneously, because the heating member is located outside the heating chamber, do not occupy the inner space in heating chamber, therefore have the bulky advantage of heating chamber, also be favorable to preventing the incrustation scale formation, have the advantage that scale prevention ability is strong.

In the above embodiment, the heat conductive member includes: the cover plate is arranged opposite to the heating cavity; the side wall plate is connected with the cover plate, and a concave cavity is formed by the cover plate and the side wall plate in a surrounding manner; at least one part of the heating cavity is embedded into the cavity and is jointed with at least the side wall of the cavity.

In the scheme, at least one part of the heating cavity is embedded into the concave cavity of the heat conducting piece, so that the volume of the steam generator is favorably reduced, and the assembly space of the steam generator is reduced; and the heating cavity is at least attached to the side wall of the concave cavity, so that the contact area between the heat conducting piece and the heating cavity is increased, and the heat transfer efficiency is improved.

In any of the above embodiments, the heating chamber comprises: a food-grade upper cover; and the food-grade bottom cover is connected with the food-grade upper cover and encloses the food-grade heating cavity together with the food-grade upper cover.

The heating cavity comprises a food-grade upper cover and a food-grade bottom cover, and the food-grade upper cover and the food-grade bottom cover are made of food-grade materials and are respectively processed and formed and then are connected together. Compared with the scheme that the food-grade coating is additionally arranged in the cavity of the non-food grade to form the food-grade heating cavity, the production process is simpler, the production efficiency is improved, the risk that the coating falls off does not exist, and the service life is long.

In the above embodiments, the food-grade upper cover is a food-grade stainless steel piece, a food-grade polypropylene piece or a food-grade ceramic piece; and/or the food-grade bottom cover is a food-grade stainless steel piece, a food-grade polypropylene piece or a food-grade ceramic piece.

The food-grade upper cover can be made of food-grade stainless steel, food-grade polypropylene or food-grade ceramic. The materials are all safe and sanitary food-grade materials and can resist the high temperature of more than 100 ℃, so that the material can be used for manufacturing food-grade upper covers. Similarly, the food-grade bottom cover can be made of, but not limited to, food-grade stainless steel, food-grade polypropylene or food-grade ceramic. The materials are safe and sanitary food-grade materials and can resist high temperature of more than 100 ℃, so that the materials can be used for manufacturing food-grade bottom covers.

In the above embodiment, the heat conducting member of the steam generator is a heat conducting base, the food-grade bottom cover is fixedly connected to the heat conducting member, and the water inlet and the steam outlet are disposed on the food-grade upper cover.

The heat conducting piece adopts a heat conducting base, and the heat conducting base is positioned below the heating cavity and plays a supporting role for the heating cavity, and is fixedly connected with the food-grade bottom cover. Like this, the efficiency of being heated of food level bottom will be high for the food level upper cover, and the water direct contact of food level bottom and heating intracavity, therefore be favorable to improving the efficiency of being heated of heating intracavity water, and then improve the generation efficiency of steam. Meanwhile, the water inlet and the steam outlet are arranged on the food-grade upper cover, so that the food-grade upper cover is not easily influenced by the heat conducting piece, the connection between the water inlet and a water source is facilitated, and the steam is conveniently lifted and discharged upwards.

In the above embodiment, the heating member is located outside the cavity of the heat-conducting member and at least partially embedded in the heat-conducting member; the food-grade bottom cover is matched with the concave cavity in shape, and the food-grade bottom cover is matched with the heat conducting piece in a concave-convex mode and is attached and fixed.

At least part of the heating member is embedded in the heat-conducting member, but not at least part is located the cavity, after food-grade bottom and the unsmooth cooperation of heat-conducting member and laminating are fixed, the heat that the heating member produced passes through the heat-conducting member and transmits for the heating cavity, because food-grade bottom and heat-conducting member laminate mutually, therefore area of contact is very big, heat transfer area is also bigger, make the heating cavity can be heated fast evenly, thereby improve heat transfer efficiency, guarantee steam production efficiency.

In the above embodiment, the food-grade bottom cover, the heating member and the heat conducting member are of an integrated structure formed by die-casting; or the food-grade bottom cover, the heating element and the heat conducting element are of an integrated structure formed by pressing; or the food-grade bottom cover, the heating element and the heat conducting element are of an integrated structure formed by welding.

Food level bottom, heating member, heat-conducting member adopt die-casting integrated into one piece, connect comparatively inseparably, and area of mutual contact is great, therefore heat transfer efficiency is very high, and joint strength is also very high.

Of course, the food-grade bottom cover, the heating element and the heat conducting element can also be formed into an integrated structure by adopting processes such as pressing forming, welding forming and the like.

In the above embodiment, an installation groove adapted to the shape of the heating element is formed between the food-grade bottom cover and the heat conducting element, and the heating element is arranged in the installation groove and attached to the wall of the installation groove.

With the heating member clamp establish the mounting groove that forms between food level bottom and the heat-conducting member in, then the heating member can enough directly be passed heat to the heating cavity, also can be passed heat to the heating cavity indirectly through the heat-conducting member, can effectively reduce calorific loss like this, effectively improve the heat utilization ratio of heating member.

In any of the above embodiments, the steam generator is provided with at least one mounting part for mounting a thermostat or a temperature sensor.

The installation department is used for installing temperature controller or temperature sensor, and the installation department specifically can be but not be limited to structures such as fastener installation department, buckle installation department, fixes the temperature controller through modes such as fastener is fixed, buckle is fixed. The setting of installation department is convenient for install temperature controller or temperature sensor to control opening of parts such as heating member, the water pump of connecting the water source according to the temperature and stop, improve security and intelligent.

In the above embodiment, the mounting portion is provided on the side wall of the heat conductive member of the steam generator.

Establish the installation department on the side bounding wall of heat-conducting piece, then temperature controller or temperature sensor install on the side bounding wall of heat-conducting piece, then temperature controller or temperature sensor's temperature-sensing element can detect the temperature of heat-conducting piece through contacting the heat-conducting piece, also can set up the installation department on the curb plate apart from the nearer position department of steam outlet to the temperature controller or temperature sensor detect the temperature of the steam of output. Simultaneously, set up like this, steam generator's food level upper cover and heat conduction base's apron do not receive temperature controller or temperature sensor's influence, and the food level upper cover of both being convenient for is connected with inlet channel, steam conduit, and the steam generator of also being convenient for directly keeps flat in steam cooking equipment, therefore is favorable to reducing steam generator to installation space's requirement.

In the above embodiment, the side wall panels comprise a plurality of end-to-end side panels; the quantity of this installation department is two, and two this installation departments interval are established on this same curb plate of this side bounding wall.

The side wall plates comprise a plurality of end-to-end side plates, so that the heat conducting piece forms a box-shaped structure, the regularity of the structure of the steam generator is improved, and the processing difficulty is reduced. Two temperature controllers can be correspondingly arranged on the two mounting parts. For steam cooking equipment, the water inlet of the steam generator is generally connected with a water inlet pipe, and a water pump is arranged on the water inlet pipe. Wherein, a temperature controller is connected with the water pump electricity, can realize automatic water injection through the opening and stopping that detects the temperature and control the water pump, improves steam cooking equipment's intellectuality. Another temperature controller then is connected with the heating member electricity, controls the opening and shutting of heating member through detecting the temperature, prevents to take place dry combustion method, improves steam cooking equipment's security. Establish two installation departments on same curb plate, it is nearer apart from, both be convenient for produce quick machine-shaping on the line, also be convenient for the temperature controller walk the line.

In the above embodiment, the steam generator includes a thermostat or a temperature sensor installed at the mounting portion.

Temperature controller or temperature sensor's setting is convenient for control the opening of parts such as heating member, water pump according to the temperature and is stopped to improve steam generator and steam cooking equipment's security and intellectuality.

In any of the above embodiments, the heating element is a heat pipe; the heating cavity is provided with a heating flow passage, the heating flow passage is matched with the shape of the heating tube and extends along the extension direction of the heating tube; the water inlet and the steam outlet are respectively communicated with two ends of the heating flow channel.

The heating member adopts the heating pipe, and heating efficiency is high, and simple structure, with low costs. The heating runner corresponds the setting with the heating tube, is favorable to improving the efficiency of being heated of the water in the heating runner, and the water of being convenient for to pour into the heating chamber into by the water inlet of heating runner one end flows along the heating runner, becomes steam and discharges from the steam outlet of heating runner other end after constantly being heated fully to improve steam port department exhaust steam volume.

In the above embodiment, the heat generating tube is bent and extended.

The heating tube adopts a bent and extended shape, which is beneficial to prolonging the length of the heating tube, thereby improving the heating efficiency, and not causing the assembly space to be larger, thereby being beneficial to saving the space. Meanwhile, under the condition that the volumes of the heating cavities are the same, the length of a heating flow channel is prolonged, and therefore the heating efficiency is improved.

In the above embodiment, the heat generating tube has a U-shape.

The heating tube adopts a U shape, and the structure is simpler. Simultaneously, the heating tube of U-shaped corresponds the heating runner of U-shaped, because water inlet and steam outlet communicate with the both ends of heating runner respectively, therefore water inlet and steam outlet lie in heating cavity with one side, closely apart, and this steam generator of being convenient for is connected with inlet channel, steam conduit, simplifies the pipeline layout in the steam cooking equipment.

In the above embodiment, the heating chamber is provided with the partition rib, and the partition rib divides the heating chamber into the U-shaped heating flow passage; the food-grade upper cover of the heating cavity is provided with a positioning rib, and the length and the position of the positioning rib correspond to the separation rib.

The heating cavity is divided into a U-shaped heating flow channel by the separating rib in the heating cavity, one end of the separating rib is connected with the side wall of the heating cavity, and a gap is formed between the other end of the separating rib and the side wall of the heating cavity. The length of the positioning rib on the food-grade upper cover corresponds to the length and the position of the separating rib, so that the fool-proof effect of assembly can be achieved, and the food-grade upper cover is prevented from being assembled reversely in the assembling process.

According to an embodiment of the second aspect of the present invention, there is provided a steam cooking apparatus including: a steam generator according to any of the embodiments of the first aspect; and an apparatus body connected with the steam generator.

According to the embodiment of the second aspect of the present invention, the steam cooking device includes any one of the steam generators of the embodiments of the first aspect, so that all the advantages of any one of the embodiments are achieved, and the description is omitted here.

In any of the above embodiments, the steam cooking device may be, but is not limited to, a steam oven, a steam microwave, a steam-powered pot, and the like.

Additional aspects and advantages of the present application will be set forth in part in the description which follows, or may be learned by practice of the present application.

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 illustrates a perspective view of a steam generator according to some embodiments of the present invention;

FIG. 2 illustrates an exploded view of the steam generator of FIG. 1;

FIG. 3 illustrates a sectional structure view of the steam generator shown in FIG. 1;

FIG. 4 illustrates another exploded structural view of the steam generator shown in FIG. 1;

fig. 5 illustrates a block diagram of a steam cooking apparatus according to some embodiments of the present invention;

fig. 6 illustrates a structure view of a steam cooking apparatus according to some embodiments of the present invention.

Wherein, the correspondence between the reference numbers and the part names in fig. 1 to 6 is:

1, a steam generator, 11, a food-grade upper cover, 111, 112 and steam outlets, 113 positioning ribs, 12, a food-grade bottom cover, 121, a heating cavity, 122 spacing ribs, 123 heating flow channels, 13 heat-conducting pieces, 131 cover plates, 132 side enclosing plates, 1321 side plates, 133 concave cavities, 134 mounting parts, 14 heating pieces, 141 heating pipes and 15 heating cavities;

2 steam cooking equipment, 21 equipment main body, 211 cooking chamber, 212 steam pipeline, 213 inlet pipe, 214 water pump, 215 main control panel, 216 temperature controller, 217 water tank.

Detailed Description

In order that the above objects, features and advantages of the present application can be more clearly understood, the present application will be described in further detail with reference to the accompanying drawings and detailed description. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, however, the present application may be practiced in other ways than those described herein, and therefore the scope of the present application is not limited by the specific embodiments disclosed below.

A steam generator and a steam cooking apparatus provided in some embodiments of the present application are described below with reference to fig. 1 to 6.

As shown in fig. 1, an embodiment of the first aspect of the present invention provides a steam generator 1, including: a heating chamber 15 and a heating element 14.

Specifically, a heating cavity 121 is disposed in the heating cavity 15, as shown in fig. 3. The heating cavity 121 is a food grade heating cavity, and the heating cavity 15 is provided with a water inlet 111 and a steam outlet 112 which are communicated with the heating cavity 121.

The heating member 14 is provided corresponding to the heating chamber 15 for heating the heating chamber 15.

Embodiments of the first aspect of the present invention provide a steam generator 1, comprising a heating chamber 15 and a heating element 14. The heating cavity 15 is provided with a heating cavity 121, the heating cavity 121 is communicated with a water source through the water inlet 111, so that the water source can supply water to the heating cavity 121, and steam generated by heating the water is discharged through the steam outlet 112 under the heating of the heating element 14. Because the heating cavity 121 is a food-grade heating cavity, harmful substances are not generated in the process of contacting water and using for a long time, and the food safety of the steam cooking device 2 can be effectively ensured.

In one embodiment, further, the steam generator 1 further comprises: and a heat conductive member 13. The heat conducting member 13 is located outside the heating cavity 121 and connected to the heating cavity 15. The heating member 14 is fixedly connected to the heat-conductive member 13.

The heat-conducting member 13 and the heating member 14 are located outside the heating cavity 121 and are fixedly connected, the heating member 14 can generate heat and conduct the heat to the heat-conducting member 13, and the heat-conducting member 13 is connected to the heating cavity 15, so that the heat can be conducted to the heating cavity 15. Compare in the scheme of heating pipe snap-on the outer wall of heating chamber 15, the heat-conducting piece 13 and the heating member 14 combined action of this scheme are to heating chamber 15 heat transfer, are favorable to increasing heating chamber 15's heated area to improve heating chamber 15's the efficiency of being heated and the homogeneity of being heated, and then improve steam generator 1's steam and produce efficiency.

Meanwhile, the heating element 14 is positioned outside the heating cavity 121, so that the heating cavity 121 does not occupy the internal space, the heating cavity 15 is large in size, scale is prevented, and the scale-preventing function is high.

It is understood that the heat conductive member 13 has high heat conductive efficiency, and may be, but not limited to, an aluminum member such as an aluminum alloy, a copper member such as a copper alloy, a silver member, or the like.

In some embodiments, the heating chamber 15 comprises: a food grade upper cover 11 and a food grade bottom cover 12 as shown in fig. 4. The food-grade bottom cover 12 is fixedly connected with the food-grade upper cover 11 and encloses a food-grade heating cavity with the food-grade upper cover 11.

The heating cavity 15 comprises a food-grade upper cover 11 and a food-grade bottom cover 12, and the food-grade upper cover 11 and the food-grade bottom cover 12 are made of food-grade materials, are respectively processed and formed, and are then connected together. Compared with the scheme that the food-grade coating is additionally arranged in the cavity of the non-food grade to form the food-grade heating cavity, the production process is simpler, the production efficiency is improved, the risk that the coating falls off does not exist, and the service life is long.

Specifically, the food-grade bottom cover 12 and the food-grade bottom cover 12 can be fixed together by means of extrusion, welding, screwing, and the like.

The food-grade upper cover 11 and the food-grade bottom cover 12 may be made of, but not limited to, food-grade stainless steel, food-grade polypropylene, or food-grade ceramic. The materials are all safe and sanitary food-grade materials and can resist the high temperature of more than 100 ℃, so that the food-grade upper cover 11 and the food-grade bottom cover 12 can be manufactured.

In one embodiment, the food grade top cover 11 is a food grade stainless steel member and the food grade bottom cover 12 is a food grade stainless steel member. The food-grade stainless steel has good thermal conductivity, high strength and long service life, and is convenient to fixedly connect the food-grade upper cover 11 and the food-grade lower cover by welding, riveting, screwing, extruding and other processes, and is also convenient to fixedly connect the food-grade upper cover and the food-grade lower cover by adopting the processes and the heat conducting piece 13, thereby simplifying the production process of the steam generator 1.

In another embodiment, the food-grade top cover 11 is a food-grade polypropylene member and the food-grade bottom cover 12 is a food-grade polypropylene member. The food grade polypropylene material is light, which is beneficial to reducing the weight of the steam generator 1, and is convenient to be processed into various required shapes by injection molding, and the cost is relatively low.

In yet another embodiment, the food-grade top cover 11 is a food-grade ceramic piece and the food-grade bottom cover 12 is a food-grade ceramic piece. The food-grade ceramic has excellent heat-conducting property, and is beneficial to improving the heating efficiency of the heating cavity 15.

In other embodiments, a food-grade heating cavity formed by adding a food-grade coating in a non-food-grade cavity can also be adopted.

In one embodiment, in particular, the heat conducting member 13 of the steam generator 1 is a heat conducting base, the food grade bottom cover 12 is fixedly connected with the heat conducting member 13, and the water inlet 111 and the steam outlet 112 are arranged on the food grade upper cover 11, as shown in fig. 2.

The heat conducting piece 13 is in the form of a heat conducting base, and the heat conducting base is located below the heating cavity 15, plays a supporting role for the heating cavity 15, and is fixedly connected with the food-grade bottom cover 12. Like this, food level bottom cover 12's the efficiency of being heated will be high for food level upper cover 11, and food level bottom cover 12 and the water direct contact in the heating chamber 121, therefore be favorable to improving the efficiency of being heated of water in the heating chamber 121, and then improve the generation efficiency of steam.

Meanwhile, the water inlet 111 and the steam outlet 112 are arranged on the food-grade upper cover 11, so that the food-grade upper cover is not easily influenced by the heat conducting piece 13, and the connection between the water inlet 111 and a water source is facilitated, and the steam is conveniently discharged upwards in a rising manner.

Further, the heat-conductive member 13 is provided with a cavity 133, as shown in fig. 4. The heating member 14 is located outside the cavity 133 and is at least partially embedded in the heat conductive member 13. The food-grade bottom cover 12 has a shape adapted to the shape of the cavity 133, and the food-grade bottom cover 12 is engaged with and attached to the heat-conducting member 13 in a concave-convex manner, as shown in fig. 3.

The heating member 14 is at least partially embedded in the heat conducting member 13, but not at least partially located in the cavity 133, after the food-grade bottom cover 12 is in concave-convex fit with the heat conducting member 13 and is fixedly attached, heat generated by the heating member 14 is transferred to the heating cavity 15 through the heat conducting member 13, and the food-grade bottom cover 12 is attached to the heat conducting member 13, so that the contact area is very large, the heat transfer area is large, the heating cavity 15 can be heated quickly and uniformly, the heat transfer efficiency is improved, and the steam generation efficiency is ensured.

Wherein, food level bottom 12, heating member 14 and heat-conducting member 13 are the fashioned integral type structure of die-casting, connect comparatively closely, and mutual area of contact is great, therefore heat transfer efficiency is very high, and joint strength is also very high.

Of course, the food-grade bottom cover 12, the heating members 14 and the heat conducting members 13 may be formed into an integral structure by pressing, welding or the like.

In another embodiment (not shown), a mounting groove adapted to the shape of the heating element 14 is formed between the food-grade bottom cover 12 and the heat-conducting member 13, and the heating element 14 is disposed in the mounting groove and attached to the wall of the mounting groove.

With heating member 14 clamp establish in the mounting groove that forms between food level bottom 12 and the heat-conducting member 13, then heating member 14 can enough directly transmit heat to heating cavity 15, also can transmit heat to heating cavity 15 indirectly through heat-conducting member 13, can effectively reduce calorific loss like this, effectively improve heating member 14's heat utilization rate.

In any of the above embodiments, further, the heat conducting member 13 includes a cover plate 131 and a side wall plate 132 connected to the cover plate 131, as shown in fig. 3. The cover plate 131 and the side wall plate 132 enclose a cavity 133. At least a portion of heating chamber 15 is inserted into cavity 133 and conforms to at least the sidewalls of cavity 133.

In the present embodiment, at least a portion of the heating cavity 15 is embedded in the cavity 133 of the heat conducting member 13, which is beneficial to reducing the volume of the steam generator 1, thereby reducing the assembly space of the steam generator 1; and the heating cavity 15 is attached to at least the side wall of the cavity 133, which is beneficial to increasing the contact area between the heat conducting member 13 and the heating cavity 15, thereby improving the heat transfer efficiency.

The heating cavity 15 may be attached to the bottom wall and the side wall of the cavity 133, for example, when the heating element 14 is located outside the cavity 133 of the heat-conducting member 13 and at least partially embedded in the heat-conducting member 13. The heating chamber 15 may be attached to only the side wall of the cavity 133, or to a portion of the bottom wall and the side wall of the cavity 133, for example, when the heating element 14 is disposed in the mounting groove between the food-grade bottom cover 12 and the heat conducting element 13.

In any of the above embodiments, the heating member 14 is a heat generating pipe 141, as shown in fig. 4. The heating cavity 121 is formed with a heating flow path 123 as shown in fig. 2. The heating flow path 123 is adapted to the shape of the heat generating tube 141 and extends along the extending direction of the heat generating tube 141. The inlet port 111 and the outlet port 112 are respectively communicated with both ends of the heating flow passage 123.

The heating element 14 is a heating pipe, so that the heating efficiency is high, the structure is simple, and the cost is low. The heating flow channel 123 is disposed corresponding to the heating tube 141, which is beneficial to improving the heating efficiency of the water in the heating flow channel 123, so that the water injected into the heating cavity 121 from the water inlet 111 at one end of the heating flow channel 123 flows along the heating flow channel 123, and is continuously and fully heated and then changed into steam to be discharged from the steam outlet 112 at the other end of the heating flow channel 123, thereby improving the steam amount discharged from the steam outlet.

Of course, the heating member 14 is not limited to a heating pipe, and may be an electric heating film, an electric heating plate, an electric heating wire, or the like.

Further, the heat generating tube 141 is bent to extend as shown in fig. 4.

The heating tube 141 is bent and extended, which is beneficial to extending the length of the heating tube 141, thereby improving the heating efficiency, and also is not prone to causing larger assembly space, thereby being beneficial to saving space. Meanwhile, in the case that the volumes of the heating cavities 121 are the same, it is advantageous to extend the length of the heating flow passage 123, thereby improving the heating efficiency.

In one embodiment, the heat generating tube 141 is in particular U-shaped, as shown in fig. 4.

The heating tube 141 is U-shaped, and has a simple structure. Meanwhile, the U-shaped heating tube 141 corresponds to the U-shaped heating flow channel 123, and since the water inlet 111 and the steam outlet 112 are respectively communicated with two ends of the heating flow channel 123, the water inlet 111 and the steam outlet 112 are located on the same side of the heating cavity 15 and are relatively close to each other, which facilitates the connection of the steam generator with the water inlet pipe 213 and the steam pipe 212, and simplifies the pipe layout in the steam cooking device.

Further, a rib 122 is disposed in the heating cavity 121, as shown in fig. 2 and fig. 3, the rib 122 divides the heating cavity 121 into a U-shaped heating flow passage 123. The food-grade upper cover 11 of the heating cavity 15 is provided with positioning ribs 113, as shown in fig. 1 and 2, the length and position of the positioning ribs 113 correspond to the spacing ribs 122.

The heating cavity 121 is divided into a U-shaped heating flow passage 123 by the partition rib 122 in the heating cavity 121, and one end of the partition rib 122 is connected with the side wall of the heating cavity 121, and a gap is formed between the other end of the partition rib and the side wall of the heating cavity 121. The length of the positioning rib 113 on the food-grade upper cover 11 corresponds to the length and position of the spacing rib 122, so that the fool-proof assembly can be realized, and the food-grade upper cover 11 is prevented from being reversely assembled in the assembly process.

Of course, the shape of the heat generating pipe 141 is not limited to the U shape, and may be an S shape, a serpentine shape, or the like.

In any of the above embodiments, the steam generator 1 is provided with at least one mounting portion 134 for mounting the thermostat 216, as shown in fig. 1, 2 and 4. The steam generator 1 includes a thermostat 216, and the thermostat 216 is installed at the mounting part 134.

Specifically, the mounting portion 134 is used for mounting the thermostat 216, and the mounting portion 134 may be, but is not limited to, a fastener mounting portion (such as a light hole, a threaded hole, a screw post, etc.), a snap mounting portion (such as a snap, a clamping groove, a clamping hole, etc.), and the like, and the thermostat 216 is fixed by means of fastening, snap fixing, and the like. The installation part 134 is convenient for control the heating element 14, the water pump 214 of connecting the water source etc. according to the temperature and open and stop, improves security and intelligent.

Further, the mounting portion 134 is provided on the side shroud 132 of the heat conductive member 13 of the steam generator 1, as shown in fig. 4.

The mounting portion 134 is disposed on the side wall 132 of the thermal conductor 13, and the thermostat 216 is mounted on the side wall 132 of the thermal conductor 13, so that the temperature sensing element of the thermostat 216 can detect the temperature of the thermal conductor 13 by contacting the thermal conductor 13, and the mounting portion 134 can be disposed on the side plate 1321 at a position closer to the steam outlet 112, so that the thermostat 216 can detect the temperature of the output steam.

Meanwhile, the arrangement is that the food-grade upper cover 11 of the steam generator 1 and the cover plate 131 of the heat-conducting base are not affected by the temperature controller 216, which is convenient for the connection between the food-grade upper cover 11 and the water inlet pipe 213 and the steam pipe 212, and also convenient for the steam generator 1 to be directly flatly placed in the steam cooking device, thereby being beneficial to reducing the requirement of the steam generator 1 on the installation space.

In one particular embodiment, the side wall panel 132 includes a plurality of end-to-end side panels 1321. The number of mounting portions 134 is two, and the two mounting portions 134 are provided at intervals on the same side panel 1321 of the side shroud 132, as shown in fig. 4.

The side wall 132 includes a plurality of end-to-end side plates 1321, so that the heat conducting member 13 forms a box-shaped structure, which is beneficial to improving the regularity of the structure of the steam generator 1, and further reduces the processing difficulty. The two installation parts 134 are correspondingly provided with two thermostats 216. For steam cooking devices, the water inlet of the steam generator 1 is typically connected to a water inlet pipe 213, and a water pump 214 is provided on the water inlet pipe 213.

Wherein, a temperature controller 216 is connected with water pump 214 electricity, can realize automatic water injection through the start-stop that detects temperature and control water pump 214, improves steam cooking equipment's intellectuality. The other temperature controller 216 is electrically connected with the heating element 14, and controls the start and stop of the heating element 14 by detecting the temperature, so that dry burning is prevented, and the safety of the steam cooking equipment is improved. The two mounting portions 134 are arranged on the same side plate 1321 and are relatively close to each other, so that the temperature controller 216 can be conveniently wired and quickly machined and formed on a production line.

Such as: when the corresponding temperature controller 216 detects that the temperature reaches the set water injection temperature, controlling the water pump 214 to inject water; when the corresponding temperature controller 216 detects that the temperature is lower than the set water filling temperature, the water pump 214 is controlled to stop water filling.

When the corresponding temperature controller 216 detects that the temperature reaches the set power-off temperature, the heating element 14 is controlled to be powered off to prevent dry burning; when the corresponding thermostat 216 detects that the temperature in the vicinity has dropped to the set safe temperature, the heating member 14 is controlled to be powered back.

In other embodiments, the mounting portion 134 is used to mount a temperature sensor, and the steam generator 1 includes a temperature sensor. The temperature sensor can detect the temperature of the steam generator 1 and send the temperature to the main control board 215 of the steam cooking device 2, so that the main control board 215 controls the start and stop of the heating element 14 and the water pump 214 according to the temperature of the steam generator 1.

As shown in fig. 5, an embodiment of the second aspect of the present invention provides a steam cooking apparatus 2, including: like the steam generator 1 and the apparatus body 21 of any one of the first aspect embodiments, the apparatus body 21 is connected to the steam generator 1.

The embodiment of the second aspect of the present invention provides a steam cooking device 2, which comprises the steam generator 1 of any one of the embodiments of the first aspect, and therefore has all the advantages of any one of the embodiments, and will not be described herein again.

Specifically, as shown in fig. 6, the apparatus main body 21 includes a cooking chamber 211, and the steam outlet 112 of the steam generator 1 is in body communication with the cooking chamber 211 through a steam pipe 212 for delivering steam to the cooking chamber 211.

Further, the apparatus main body 21 includes a water pump 214, and the water pump 214 is connected to the water inlet 111 of the steam generator 1 and the water tank 217 through the water inlet pipe 213 for supplying water to the heating chamber 121.

Therein, the steam generator 1 comprises two thermostats 216, as shown in fig. 6. The two thermostats 216 are electrically connected to the water pump 214 and the heating element 14, respectively, and are used for controlling the on-off of the water pump 214 and the heating element 14, respectively.

Alternatively, the device main body 21 includes a main control board 215. The steam generator 1 includes a temperature sensor, the temperature sensor is installed on the steam generator 1 and electrically connected to the main control board 215, and the main control board 215 controls the start and stop of the water pump 214 and the heating members 14 according to the detection result of the temperature sensor.

In any of the above embodiments, the steam cooking device 2 may be, but is not limited to, a steam oven, a steam microwave, a steam-powered pot, and the like.

One embodiment is described below.

A food grade steam generator 1, the steam generator 1 has a heating member 14, a heat conductive member 13, a food grade bottom cover 12 and a food grade upper cover 11. The heat conducting member 13 is a die-cast aluminum base. The food grade upper cover 11 and the food grade bottom cover 12 are made of food grade stainless steel. The food-grade bottom cover 12 and the food-grade upper cover 11 are sealed to form a heating cavity 15, and the heating cavity can be formed by welding or extrusion and other processes. The food-grade bottom cover 12 is coupled with the die-cast aluminum base of the steam generator 1 through a die-casting process. The heating element 14 is a heating tube 141, and the heating tube 141 and the heat conducting element 13 are combined together through a die casting process, so that the heat transfer efficiency of the heating tube 141 and the inner cavity of the food-grade bottom cover 12 is high.

During actual operation, water enters from the water inlet 111 of the food-grade upper cover 11, is heated and vaporized by the inner cavity heated by the heating pipe 141, and high-temperature steam is output from the steam outlet 112, so that efficient heat transfer is realized.

Therefore, the embodiment has the advantages of meeting the food grade requirement, high heating efficiency, large heating cavity and strong water scale resistance.

In this application, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more unless expressly limited otherwise. The terms "mounted," "connected," "fixed," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In the description of the present application, it is to be understood that the terms "upper", "lower", "left", "right", "front", "rear", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or unit must have a specific direction, be configured and operated in a specific orientation, and thus, should not be construed as limiting the present application.

In the description herein, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means 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 application. In this specification, the schematic representations of the terms used above do not necessarily 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.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims (18)

1. A steam generator, comprising:

the heating cavity is internally provided with a heating cavity, the heating cavity is a food-grade heating cavity, and the heating cavity is provided with a water inlet and a steam outlet which are communicated with the heating cavity;

the heating member, the heating member with the heating cavity corresponds the setting, is used for the heating cavity.

2. The steam generator of claim 1, further comprising:

the heating cavity is arranged outside the heating cavity, and the heating element is fixedly connected with the heating cavity.

3. The steam generator of claim 2, wherein the heat conducting member comprises:

the cover plate is arranged opposite to the heating cavity; and

the side coaming is connected with the cover plate, and a concave cavity is defined by the cover plate and the side coaming; at least one part of the heating cavity is embedded into the concave cavity and is at least attached to the side wall of the concave cavity.

4. The steam generator of any of claims 1 to 3, wherein the heating cavity comprises:

a food-grade upper cover; and

the food-grade heating cavity is formed by enclosing the food-grade upper cover and the food-grade heating cavity.

5. The steam generator of claim 4,

the food-grade upper cover is a food-grade stainless steel piece, a food-grade polypropylene piece or a food-grade ceramic piece; and/or

The food-grade bottom cover is a food-grade stainless steel part, a food-grade polypropylene part or a food-grade ceramic part.

6. The steam generator of claim 4,

the heat conducting part of the steam generator is a heat conducting base, the food-grade bottom cover is fixedly connected with the heat conducting part, and the water inlet and the steam outlet are formed in the food-grade upper cover.

7. The steam generator of claim 6,

the heating element is positioned outside the concave cavity of the heat-conducting element and at least partially embedded in the heat-conducting element;

the food-grade bottom cover is matched with the concave cavity in shape, and the food-grade bottom cover is matched with the heat conducting piece in a concave-convex mode and is attached and fixed.

8. The steam generator of claim 6,

the food-grade bottom cover, the heating element and the heat conducting element are of an integrated structure formed by die casting; or

The food-grade bottom cover, the heating element and the heat conducting element are of an extrusion-molded integrated structure; or

The food-grade bottom cover, the heating element and the heat conducting element are of an integrated structure formed by welding.

9. The steam generator of claim 6,

the food-grade bottom cover with form between the heat-conducting member with the mounting groove of the shape adaptation of heating member, the heating member is established in the mounting groove, and with the cell wall of mounting groove laminates mutually.

10. The steam generator according to any one of claims 1 to 3,

the steam generator is provided with at least one mounting part, and the mounting part is used for mounting a temperature controller or a temperature sensor.

11. The steam generator of claim 10,

the mounting portion is provided on a side shroud of a heat conductive member of the steam generator.

12. The steam generator of claim 11,

the side wall plates comprise a plurality of end-to-end side plates;

the quantity of installation department is two, two the installation department interval is established the same of side bounding wall on the curb plate.

13. The steam generator of claim 10,

the steam generator comprises a temperature controller or a temperature sensor, and the temperature controller or the temperature sensor is installed at the installation part.

14. The steam generator according to any one of claims 1 to 3,

the heating element is a heating tube;

the heating cavity is provided with a heating flow passage, and the heating flow passage is matched with the shape of the heating tube and extends along the extension direction of the heating tube;

the water inlet and the steam outlet are respectively communicated with two ends of the heating flow channel.

15. The steam generator of claim 14,

the heating tube extends in a bent manner.

16. The steam generator of claim 15,

the heating tube is U-shaped.

17. The steam generator of claim 16,

a separation rib is arranged in the heating cavity and divides the heating cavity into U-shaped heating flow passages;

the food-grade upper cover of the heating cavity is provided with a positioning rib, and the length and the position of the positioning rib correspond to those of the separation rib.

18. Steam cooking apparatus, characterized in that it comprises:

the steam generator of any of claims 1 to 17; and

an apparatus body connected with the steam generator.

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