Electric steamer

Abstract

The electric steamer comprises a base and a steamer assembly, the steamer assembly comprises a plurality of steaming cavities, the base comprises a water tank, a heating device, a main pipeline and a plurality of branch pipelines, the main pipeline is connected between the water tank and the branch pipelines, and the branch pipelines are communicated with the steaming cavities in a one-to-one correspondence mode. The heating device comprises a first-stage boiler and a second-stage boiler, the first-stage boiler is arranged in the main pipeline so as to heat inlet water in the main pipeline to form steam, the second-stage boiler is arranged in each branch pipeline, and the second-stage boilers are used for conducting secondary heating on the steam in the branch pipelines. According to the electric steamer, the temperature of steam entering the steaming cavity can reach the expected temperature, and the influence on the multi-way valve can be reduced under the condition that the multi-way valve is arranged, so that the cost of the electric steamer is reduced, and the service life of the electric steamer is prolonged.

Description

Technical field

[0001] The utility model relates to the technical field of kitchen appliances, in particular to an electric steamer. [Background Technology]

[0002] The electric steamer in the prior art includes a base and a steamer assembly, the steamer assembly includes multiple steaming chambers, the base includes a water tank, a heating device, a main pipe and multiple branch pipes, the main pipe is connected between the water tank and the multiple branch pipes, and the multiple branch pipes are connected to the multiple steaming chambers one by one. The heating device is arranged in the main pipe and includes a primary boiler and a secondary boiler. The primary boiler is used to heat the water in the main pipe to form steam, and the secondary boiler is used to perform secondary heating on the steam in the main pipe to form high-temperature steam. After distribution, the high-temperature steam enters each branch pipe and flows to the corresponding steaming chamber to heat the food in the steaming chamber. Due to the distribution of high-temperature steam and the loss of flow in the branch pipes, the temperature delivered to the steam chamber has failed to reach the expected temperature, which makes the heating effect of the high-temperature steam worse; in addition, when a multi-way valve is connected between the main pipe and multiple branch pipes, since the high-temperature steam needs to be distributed through the multi-way valve, the high-temperature resistance requirements of the valve body are increased, thereby increasing the manufacturing cost of the multi-way valve; especially when the multi-way valve adopts a solenoid valve, the solenoid valve will be affected by the high-temperature steam and the solenoid coil will age and lose magnetism, causing the solenoid valve to fail and shortening the service life of the solenoid valve. [Utility Model Content]

[0003] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide an electric steamer which can not only ensure that the temperature of the steam entering the steam chamber reaches the desired temperature, but also reduce the impact on the multi-way valve when a multi-way valve is provided, thereby reducing its cost and extending its service life.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0005] An electric steamer comprises a base and a steamer assembly, wherein the steamer assembly comprises multiple steaming chambers, the base comprises a water tank, a heating device, a main pipe and multiple branch pipes, the main pipe is connected between the water tank and the multiple branch pipes, and the multiple branch pipes are connected to the multiple steaming chambers in a one-to-one correspondence, the heating device comprises a primary boiler and a secondary boiler, the primary boiler is arranged in the main pipe to heat the incoming water in the main pipe to form steam, and the secondary boiler is arranged in each branch pipe, and the secondary boiler is used to perform secondary heating on the steam in the branch pipes.

[0006] In the above electric steamer, the base further comprises a multi-way valve having a steam inlet and a plurality of steam outlets, the steam inlet being connected to the main pipeline, and the plurality of steam outlets being connected to a plurality of branch pipelines in a one-to-one correspondence.

[0007] In the above-mentioned electric steamer, the multi-way valve is a multi-way joint so that the steam inlet and multiple steam outlets are always connected; or the multi-way valve is a solenoid valve or an electric valve, and the base also includes a control device connected to the multi-way valve, and the control device controls the operation of the multi-way valve to connect the main line with at least part of the branch line.

[0008] In the above electric steamer, the power of the first-stage boiler is greater than the power of the second-stage boiler.

[0009] In the above electric steamer, the diameter of the main pipeline is larger than the diameters of each branch pipeline.

[0010] In the above electric steamer, the multiple steaming chambers are independently arranged.

[0011] In the above electric steamer, the base includes a shell, a protection box is installed in the shell, and the multiple secondary boilers are centrally installed in the protection box.

[0012] In the above electric steamer, the protective box includes a box body and a protective cover, both the protective cover and the box body are provided with mounting lugs, and the fasteners sequentially penetrate the mounting lugs on the protective cover and the box body and are fixedly connected to the shell.

[0013] In the above electric steamer, the base further comprises a control device, which is connected to the plurality of secondary boilers to respectively adjust the heating state of each secondary boiler.

[0014] In the above-mentioned electric steamer, the control device includes a processor, multiple relay control switches and multiple temperature sensors. The multiple relay control switches correspond one-to-one to the multiple secondary boilers and are connected in series. The multiple temperature sensors are arranged one-to-one on the secondary boilers. The processor is electrically connected to the relay control switches and the temperature sensors.

[0015] Beneficial effects of the utility model:

[0016] 1. The secondary boiler in the present invention is arranged in the branch pipeline and is used to perform secondary heating on the steam entering the branch pipeline to form high-temperature steam. In this way, the steam can be distributed in advance before entering the secondary boiler, and then the high-temperature steam is formed through the secondary heating of the secondary boiler. The high-temperature steam can directly enter the corresponding steam chamber, thereby shortening the path for the high-temperature steam to flow into the corresponding steam chamber, reducing the heat loss between the secondary boiler and the steam chamber, and ensuring that the temperature of the steam entering the steam chamber reaches the desired temperature; in addition, the amount of steam entering each branch pipeline after distribution is much smaller than the amount of steam in the main pipeline, thereby improving the efficiency of the secondary boiler in heating the steam in the branch pipeline; furthermore, when a multi-way valve is used, the steam flow can be distributed through the multi-way valve instead of the high-temperature steam, thereby reducing the requirements for the high-temperature resistance of the valve body and further reducing the manufacturing cost of the multi-way valve; finally, when the multi-way valve is a solenoid valve, the temperature impact of the steam on the solenoid valve can be reduced, thereby extending the service life of the solenoid valve.

[0017] 2. The base also includes a multi-way valve with a steam inlet and multiple steam outlets. The steam inlet is connected to the main line, and the multiple steam outlets are connected to multiple branch lines in a one-to-one correspondence. Connecting the main line and multiple branch lines through the multi-way valve allows the main line and branch lines to be independently machined and formed, reducing the processing difficulty of the main line and branch lines. It also facilitates the independent replacement of the main line and branch lines.

[0018] 3. The multi-way valve is a multi-way connector so that the steam inlet and multiple steam outlets are always connected. Such a design can simplify the structure of the multi-way valve and reduce the manufacturing cost of the multi-way valve; alternatively, the multi-way valve is a solenoid valve or an electric valve, and the base also includes a control device connected to the multi-way valve, and the control device controls the operation of the multi-way valve to connect the main line with at least part of the branch line. With such a design, when there is no food placed in part of the steaming chamber, that is, when part of the steaming chamber is empty, the solenoid valve or the electric valve can be controlled to disconnect the main line from the branch line connected to the empty steaming chamber, and connect the main line to the branch line connected to the steaming chamber where food is placed, thereby reducing the waste of steam and the overall energy consumption of the heating device, thereby improving the user experience.

[0019] 4. The power of the first-stage boiler is greater than that of the second-stage boiler. This design ensures that the water entering the first-stage boiler is fully heated to form steam. It also ensures that the water vapor generated by the first-stage boiler is properly heated by the second-stage boiler to form high-temperature steam, without wasting power in the second-stage boiler.

[0020] 5. The diameter of the main pipe is larger than that of each branch pipe. This design ensures that the large-diameter main pipe ensures that the amount of steam entering the secondary boiler is sufficient to heat the steam chamber. After distribution, the flow rate of the branch pipes is relatively small compared to the main pipe flow rate. The small pipe diameter prevents the steam from flowing out too slowly and saves materials. In addition, further limiting the diameter of the branch pipes limits the steam flow rate entering the branch pipes, allowing more steam to be fully heated in the secondary boiler. When the diameters of the branch pipes are equal, standardized production is achieved, reducing the manufacturing difficulty.

[0021] 6. Multiple steaming chambers are independently designed. This design prevents the high-temperature steam entering the steaming chamber from flowing freely between the multiple steaming chambers. This ensures that the electric steamer can heat the ingredients in multiple steaming chambers simultaneously while preventing the odor of different ingredients from spreading through the steam in each steaming chamber, reducing the risk of odor transfer and improving the steaming effect of the electric steamer.

[0022] 7. The base includes a housing, within which is installed a protective box. Multiple secondary boilers are centrally mounted within the protective box. This design allows heat dissipation between the secondary boilers to be transferred within the protective box, achieving a certain degree of thermal insulation and heating, reducing heat loss to the outside world, resulting in higher steam heating efficiency and lower power loss.

[0023] 8. The protective box includes a box body and a protective cover. Both the protective cover and the box body are equipped with mounting lugs. Fasteners penetrate the mounting lugs on the protective cover and box body in sequence to securely connect to the shell. This design not only facilitates the assembly of the secondary boiler into the protective box, but also secures the protective cover to the box body and the protective box to the shell through the fasteners. This eliminates the need for separate connections between the protective cover and the box body, thereby reducing the number of parts and the number of steps required to assemble the protective box.

[0024] 9. The base also includes a control device connected to the multiple secondary boilers to individually adjust the heating status of each secondary boiler. This design allows for individual control of the heating status of each secondary boiler, thereby controlling the temperature of the high-temperature steam output from the secondary boiler to meet the cooking requirements of different ingredients in different steam chambers.

[0025] 10. The control device includes a processor, multiple relay control switches, and multiple temperature sensors. The multiple relay control switches correspond one-to-one to the multiple secondary boilers and are connected in series. The multiple temperature sensors are each mounted on the secondary boilers in a corresponding manner. The processor is electrically connected to the relay control switches and temperature sensors. The temperature sensors monitor the real-time temperature of each secondary boiler and transmit the data to the processor. The processor controls the on / off power supply of the relay control switches based on user operation or prior settings to adjust the operation of each secondary boiler, thereby achieving separate control over the heating state of each secondary boiler. In other words, the temperature of the high-temperature steam output from each secondary boiler is individually adjusted, providing better adaptability.

[0026] These features and advantages of the present invention will be disclosed in detail in the following specific embodiments and drawings.

Brief Description of the Drawings

[0027] The present invention will be further described below with reference to the accompanying drawings:

[0028] Figure 1 This is a schematic structural diagram of the electric steamer in Example 1 of the present utility model;

[0029] Figure 2 This is a structural diagram of the base in Example 1 of the present utility model;

[0030] Figure 3 This is a schematic diagram of the explosion of the secondary boiler and the protection box in Example 1 of the present utility model.

[0031] Reference numerals:

[0032] 100. Base; 101. Water tank; 110. Heating device; 111. Primary boiler; 112. Secondary boiler; 120. Main pipeline; 121. First pipeline; 122. Second pipeline; 130. Branch pipeline; 131. Third pipeline; 132. Fourth pipeline; 140. Multi-way valve; 150. Shell; 160. Protective box; 161. Box body; 162. Protective cover; 163. Mounting lug; 164. Partition; 165. Mounting cavity; 200. Steamer assembly; 210. Juice tray; 220. Steaming enclosure; 230. Steaming lid. [Specific implementation method]

[0033] The utility model provides an electric steamer, comprising a base and a steamer assembly, wherein the steamer assembly comprises a plurality of steaming chambers, the base comprises a water tank, a heating device, a main pipe and a plurality of branch pipes, the main pipe is connected between the water tank and the plurality of branch pipes, the plurality of branch pipes are connected to the plurality of steaming chambers in a one-to-one correspondence, the heating device comprises a primary boiler and a secondary boiler, the primary boiler is arranged in the main pipe to heat the incoming water in the main pipe to form steam, the secondary boiler is arranged in each branch pipe, and the secondary boiler is used to perform secondary heating on the steam in the branch pipes.

[0034] The secondary boiler in the present invention is arranged in the branch pipeline and is used to perform secondary heating on the steam entering the branch pipeline to form high-temperature steam. In this way, the steam can be distributed in advance before entering the secondary boiler, and then high-temperature steam is formed through the secondary heating of the secondary boiler. The high-temperature steam can directly enter the corresponding steam chamber, thereby shortening the path for the high-temperature steam to flow into the corresponding steam chamber, reducing the heat loss between the secondary boiler and the steam chamber, and making the steam temperature entering the steam chamber reach the expected temperature; in addition, the amount of steam entering each branch pipeline after distribution is much smaller than the amount of steam in the main pipeline, thereby improving the steam heating efficiency of the secondary boiler in the branch pipeline; furthermore, when a multi-way valve is used, the steam flow can be distributed through the multi-way valve instead of the high-temperature steam being distributed through the multi-way valve, thereby reducing the requirements for the high-temperature resistance of the valve body, and further reducing the manufacturing cost of the multi-way valve; finally, when the multi-way valve is a solenoid valve, the temperature impact of the steam on the solenoid valve can also be reduced, thereby extending the service life of the solenoid valve.

[0035] The technical solutions of the embodiments of the present invention are explained and illustrated below in conjunction with the drawings of the embodiments of the present invention, but the following embodiments are only preferred embodiments of the present invention, not all of them. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without making creative work all fall within the scope of protection of the present invention. In addition, it should be understood that the following words indicating orientation or positional relationship such as "up", "down", "left", "right", "longitudinal", "lateral", "inside", "outside", "vertical", "horizontal", "top", "bottom", etc. are only based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device / element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0036] Example 1

[0037] like Figures 1 to 3As shown, the electric steamer in this embodiment includes a base 100 and a steamer assembly 200, the steamer assembly 200 includes multiple steaming chambers, the base 100 includes a water tank 101, a heating device 110, a main line 120 and multiple branch lines 130, the main line 120 is connected between the water tank 101 and the multiple branch lines 130, and the multiple branch lines 130 are connected to the multiple steaming chambers in a one-to-one correspondence, that is, one branch line 130 is only connected to one of the steaming chambers, the heating device 110 includes a primary boiler 111 and a secondary boiler 112, the primary boiler 111 is arranged in the main line 120 to heat the incoming water in the main line 120 to form steam, and each branch line 130 is provided with a secondary boiler 112, the secondary boiler 112 is used to perform secondary heating on the steam in the branch line 130 to form high-temperature steam, so that the steam can be heated before entering the secondary boiler 112 The steam is distributed beforehand and then forms high-temperature steam through the secondary heating of the secondary boiler 112. The high-temperature steam can directly enter the corresponding steam chamber, thereby shortening the path of the high-temperature steam flowing into the corresponding steam chamber, reducing the heat loss between the secondary boiler 112 and the steam chamber, and making the steam temperature entering the steam chamber reach the expected temperature; in addition, the amount of steam entering each branch pipe 130 after distribution is much smaller than the amount of steam in the main pipe 120, thereby improving the steam heating efficiency of the secondary boiler 112 in the branch pipe 130; furthermore, when a multi-way valve is used, the steam can be distributed through the multi-way valve instead of the high-temperature steam through the multi-way valve, thereby reducing the requirements for the high-temperature resistance of the valve body, thereby reducing the manufacturing cost of the multi-way valve; finally, when the multi-way valve is a solenoid valve, the temperature impact of the steam on the solenoid valve can also be reduced, thereby extending the service life of the solenoid valve.

[0038] Specifically, in this embodiment, the power of the first-stage boiler 111 is greater than the power of the second-stage boiler 112. This design ensures that the water entering the first-stage boiler 111 is fully heated to form steam. It also ensures that the water vapor generated by the first-stage boiler 111 is properly heated by the second-stage boiler 112 to form high-temperature steam, while also preventing power waste in the second-stage boiler 112. Preferably, the power of the second-stage boiler 112 is less than or equal to 1 / 9 of the power of the first-stage boiler 111. For example, if the power of the first-stage boiler 111 is 1800W, the power of the second-stage boiler 112 can be 100W.

[0039] Furthermore, the diameter of the main pipe 120 is larger than that of each branch pipe 130. This design ensures that the large diameter of the main pipe 120 ensures that the amount of steam entering the secondary boiler 112 is sufficient to heat the steam chamber. Furthermore, after distribution, the flow rate of the branch pipes 130 is smaller than that of the main pipe 120. The small diameter prevents excessive steam outflow and saves material. Furthermore, by further limiting the diameter of the branch pipes 130, the steam flow rate entering the branch pipes 130 is limited, allowing more steam to be fully heated in the secondary boiler 112. When the diameters of the branch pipes 130 are equal, standardized manufacturing is achieved, reducing manufacturing complexity.

[0040] Furthermore, the base 100 in this embodiment also includes a multi-way valve 140, which has a steam inlet and multiple steam outlets. The steam inlet is connected to the main line 120, and the multiple steam outlets are connected to the multiple branch lines 130 in a one-to-one correspondence. With this design, the main line 120 and the multiple branch lines 130 are connected by the multi-way valve, so that the main line 120 and the branch lines 130 can be processed and formed separately to reduce the processing difficulty of the main line 120 and the branch lines 130; at the same time, it is also convenient for the main line 120 and the branch lines 130 to be replaced separately; finally, the main line 120 and the branch lines 130 can also use hoses to facilitate the arrangement of the pipelines.

[0041] Preferably, the main pipeline 120 consists of a first pipeline 121 and a second pipeline 122, one end of the first pipeline 121 is connected to the water tank 101 through a water pump, and the other end is connected to the water inlet of the first-level boiler 111, one end of the second pipeline 122 is connected to the steam outlet of the first-level boiler 111, and the other end of the second pipeline 122 is connected to the steam inlet, and the branch pipeline 130 consists of a third pipeline 131 and a fourth pipeline 132, one end of the third pipeline 131 is connected to one of the steam outlets, and the other end is connected to the steam inlet of the second-level boiler 112, one end of the fourth pipeline 132 is connected to the steam outlet of the second-level boiler 112, and the other end is connected to the corresponding steam chamber.

[0042] The steamer assembly 200 in this embodiment includes a plurality of vertically spaced juice receiving trays 210, a steaming enclosure 220 provided between two adjacent juice receiving trays 210, and a steaming cover 230 provided on the uppermost juice receiving tray 210. The steaming enclosure 220 and the two adjacent juice receiving trays 210 form a steaming cavity, and the steaming cover 230 and the uppermost juice receiving tray 210 form a steaming cavity, thereby allowing a plurality of steaming cavities to be distributed vertically and each steaming cavity to be independently provided. A steaming plate for placing food is provided in the juice receiving tray 210, one of the branch pipes 130 is directly connected to the steaming cavity in the lowermost layer, and the remaining branch pipes 130 are each connected to the remaining steaming cavities through a steam passage, the lower end of the steam passage is connected to the branch pipe 130, and the upper end of the steam passage is connected to the corresponding steaming cavity, and the steam passage runs through each juice receiving tray located below the steaming cavity, thereby allowing each steaming cavity to be independently provided. This design prevents the high-temperature steam entering the steaming chamber from flowing freely between multiple steaming chambers. This ensures that the electric steamer can heat the ingredients in multiple steaming chambers at the same time, while preventing the odors of different ingredients from spreading through the steam in each steaming chamber, reducing the risk of odor cross-contamination and improving the steaming effect of the electric steamer on the ingredients.

[0043] In order to reduce the cost of the multi-way valve 140, in one embodiment, the multi-way valve 140 can be a multi-way joint to keep the steam inlet and multiple steam outlets in constant communication. Such a design can simplify the structure of the multi-way valve 140 and reduce the manufacturing cost of the multi-way valve 140.

[0044] When the multi-way valve 140 is a multi-way joint, if no food is placed in part of the steaming chamber, that is, when the steaming chamber is in an empty state, high-temperature steam is still sent into the empty steaming chamber, which will result in steam waste and energy waste of the heating device, reducing the user experience.

[0045] Preferably, in order to enhance the user experience, the multi-way valve 140 in this embodiment is preferably a solenoid valve or an electric valve, and the base 100 is provided with a control device connected to the multi-way valve 140, which controls the multi-way valve 140 to connect the main line 120 with at least part of the branch line 130. With this design, when no food is placed in part of the steaming chamber, that is, when part of the steaming chamber is empty, the solenoid valve or the electric valve can be controlled to disconnect the main line 120 from the branch line 130 connected to the empty steaming chamber, and connect the main line 120 to the branch line 130 connected to the steaming chamber where food is placed, so as to deliver high-temperature steam to the steaming chamber where food is placed, thereby reducing steam waste and the overall energy consumption of the heating device 110, thereby enhancing the user experience.

[0046] Secondly, the control device in this embodiment is connected to multiple secondary boilers 112 to individually adjust the heating state of each secondary boiler 112. This design allows for individual control of the heating state of each secondary boiler 112, thereby controlling the temperature of the high-temperature steam output from the secondary boiler 112 to meet the cooking requirements of different ingredients in different steaming chambers.

[0047] Specifically, the control device includes a processor, multiple relay control switches, and multiple temperature sensors. The multiple relay control switches correspond one-to-one to the multiple secondary boilers and are connected in series. The multiple temperature sensors are each mounted on the secondary boilers in a corresponding manner. The processor is electrically connected to the relay control switches and the temperature sensors. The temperature sensors monitor the real-time temperature of each secondary boiler and transmit the data to the processor. The processor controls the on / off power of the relay control switches based on user operation or pre-set settings to adjust the operation of each secondary boiler, thereby achieving independent control of the heating state of each secondary boiler. In other words, the temperature of the high-temperature steam output from each secondary boiler can be individually adjusted, achieving better adaptability.

[0048] It should be noted that when at least one branch pipe 130 is closed, the amount of steam required for the total steam chamber decreases, and the water pump power can be reduced to reduce the amount of water pumped into the main pipe 120, thereby reducing the amount of water entering the primary boiler 111. At this time, the power of the primary boiler 111 can be appropriately reduced through the control device, thereby reducing energy waste and protecting the primary boiler 111 to a certain extent. Furthermore, when the required steam volume decreases, the amount of water entering the primary boiler 111 decreases. Therefore, if the power of the primary boiler 111 remains unchanged, steam reaching 100°C will be achieved more quickly. Due to the reduced steam volume, the power of the secondary boiler 112 can be reduced through the control device to achieve the desired steam temperature, thereby reducing the energy consumption of the secondary boiler 112.

[0049] Finally, the base 100 in this embodiment also includes a housing 150, within which is mounted a protective box 160. Multiple secondary boilers 112 are collectively mounted within the protective box 160. The sidewalls of the protective box 160 are provided with escape holes through which the wiring terminals of the secondary boilers 112 extend. This design allows heat dissipation between the secondary boilers 112 to be transferred within the protective box 160, achieving a certain degree of heat preservation and heating, reducing heat loss to the outside world, and achieving higher steam heating efficiency and lower power loss.

[0050] The protective box 160 in this embodiment includes a box body 161 and a protective cover 162, each of which is independently machined and formed. The protective cover 162 is attached to the box body 161 to form a cavity for accommodating multiple secondary boilers 112. Mounting lugs 163 are provided on both the protective cover 162 and the box body 161. Screw posts are provided on the bottom wall of the housing 150. Fasteners (preferably screws) pass through the mounting lugs 163 on the protective cover 162 and the box body 161 in sequence and are fixedly connected to the screw posts. This design not only facilitates the assembly of the secondary boilers 112 into the protective box 160, but also enables the protective cover 162 to be fixedly connected to the box body 161, and the protective box 160 to be fixedly connected to the housing 150, by means of the fixed connection between the fasteners and the housing 150. There is no need for the protective cover 162 to be separately connected to the box body 161 via other structures, thereby reducing the number of parts and the number of assembly steps for the protective box 160.

[0051] Preferably, a partition 164 is provided within the protective box 160 to divide the cavity within the protective box 160 into a plurality of mounting cavities 165, each of which accommodates a secondary boiler 112. This design allows the partition 164 to separate two adjacent secondary boilers 112, thereby preventing damage caused by collision between the two adjacent secondary boilers 112.

[0052] It is understandable that in other embodiments of the present invention, in order to reduce the heat loss of the secondary boiler, the inner wall and / or outer wall of the protection box are provided with an insulation layer.

[0053] It is understandable that in other embodiments of the present invention, the second pipeline can also be integrally processed with multiple third pipelines to form a multi-way hose.

[0054] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Those skilled in the art will understand that the present invention includes, but is not limited to, the contents described in the accompanying drawings and the above specific embodiments. Any modifications that do not deviate from the functional and structural principles of the present invention are intended to be included within the scope of the claims.

Claims

1. An electric steamer, comprising a base and a steamer assembly, wherein the steamer assembly comprises a plurality of steaming chambers, the base comprising a water tank, a heating device, a main pipe, and a plurality of branch pipes, the main pipe being connected between the water tank and the plurality of branch pipes, the plurality of branch pipes being connected to the plurality of steaming chambers in a one-to-one correspondence, characterized in that: The heating device includes a primary boiler and a secondary boiler. The primary boiler is arranged in the main pipeline to heat the incoming water in the main pipeline to form steam. The secondary boiler is arranged in each branch pipeline and is used to perform secondary heating on the steam in the branch pipeline.

2. The electric steamer according to claim 1, characterized in that: The base further comprises a multi-way valve having a steam inlet and a plurality of steam outlets, wherein the steam inlet is connected to the main pipeline, and the plurality of steam outlets are connected to the plurality of branch pipelines in a one-to-one correspondence.

3. An electric steamer as claimed in claim 2, characterized in that: The multi-way valve is a multi-way joint so that the steam inlet and multiple steam outlets are always connected; or the multi-way valve is a solenoid valve or an electric valve, and the base also includes a control device connected to the multi-way valve, and the control device controls the operation of the multi-way valve to connect the main line with at least part of the branch line.

4. The electric steamer according to claim 1, wherein: The power of the first-stage boiler is greater than the power of the second-stage boiler.

5. The electric steamer according to claim 1, characterized in that: The diameter of the main pipeline is larger than the diameters of each branch pipeline.

6. The electric steamer according to claim 1, characterized in that: The multiple steam chambers are independently arranged.

7. The electric steamer according to claim 1, characterized in that: The base includes a shell, a protection box is installed in the shell, and a plurality of secondary boilers are centrally installed in the protection box.

8. The electric steamer according to claim 7, characterized in that: The protective box comprises a box body and a protective cover. Both the protective cover and the box body are provided with mounting lugs. The fasteners sequentially penetrate the mounting lugs on the protective cover and the box body and are fixedly connected to the shell.

9. The electric steamer according to any one of claims 1 to 8, characterized in that: The base further comprises a control device, which is connected to the plurality of secondary boilers to respectively adjust the heating state of each secondary boiler.

10. The electric steamer according to claim 9, characterized in that: The control device includes a processor, multiple relay control switches and multiple temperature sensors. The multiple relay control switches correspond one-to-one to multiple secondary boilers and are connected in series. The multiple temperature sensors are arranged one-to-one on the secondary boilers. The processor is electrically connected to the relay control switches and the temperature sensors.

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