Cooking electric appliance

Abstract

The utility model relates to the technical field of kitchen electric appliances, and particularly discloses a cooking electric appliance which comprises a water tank assembly and an oil fume steam treatment device, the water tank assembly comprises a water tank and a first filter screen, a water return chamber and a water supply chamber are arranged in the water tank, and the water supply chamber is provided with a water outlet. A water return opening and a first communication opening are formed in the cavity wall of the water return cavity at intervals, the water return opening and the water outlet are connected with the water outlet end and the water inlet end of the oil fume steam treatment device respectively, and the first communication opening is configured to communicate with the water supply cavity; the first filter screen is arranged at the first communicating port, the lower end of the first filter screen is higher than the bottom wall of the water return chamber, and after sewage generated by the oil fume steam treatment device flows into the water return chamber from the water return port and before the liquid level exceeds the lower end of the first filter screen, impurities in the sewage in the water return chamber can be precipitated and accumulated on the bottom wall of the water return chamber; the amount of impurities needing to be filtered by the first filter screen can be reduced, so that the filtering load is reduced, and the maintenance period is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of kitchen appliances, in particular to a cooking appliance. Background Art

[0002] Existing cooking appliances, such as steamers, steam-bake-in-one machines, etc., are usually equipped with cooking appliances, which include a water tank. The water tank is used to store clean water and supply it to the cooking appliance. The water tank is also used to recycle sewage and purify it into clean water. The purified clean water is then mixed with the clean water stored in the water tank and recycled again, which can improve water utilization.

[0003] For example, a water tank is provided in the prior art, and a water return port and a return port are provided on the water tank, and a filter is fixedly provided in the water tank, and the filter divides the inner cavity of the water tank into a water supply area and a return water area, the water supply area is used to store clean water and is connected to the return water port, and the return water area is used to store sewage and is connected to the return water port. The sewage in the return water area is filtered through the filter and enters the clean water area, so that water recycling can be achieved. In this water tank, the top of the filter is flush with the top of the return water area, and the bottom of the filter is flush with the bottom of the filter. Although the filter has a larger filtering area, the oil and other particulate impurities in the sewage will flow to the filter with the water flow and adhere to the surface of the filter, resulting in a large filtering load on the filter, and the filter needs frequent maintenance, which reduces the user experience. Utility Model Content

[0004] The utility model aims to provide a cooking appliance to reduce the filtering load of a filter in a water tank and increase the maintenance period of the filter.

[0005] In one aspect, the utility model provides a cooking appliance, which includes a water tank assembly and a fume steam treatment device, wherein the water tank assembly includes:

[0006] A water tank, wherein a water return chamber and a water supply chamber are provided in the water tank, wherein the water supply chamber is provided with a water outlet, wherein the wall of the water return chamber is provided with a water return outlet and a first communication port, wherein the first communication port is configured to communicate with the water supply chamber, wherein the oil fume steam treatment device has a water inlet and a water outlet, wherein the water outlet is used to supply water to the water inlet, and wherein the water return outlet is connected to the water outlet;

[0007] The first filter screen is arranged at the first communication port, and the lower end of the first filter screen is higher than the bottom wall of the water return chamber.

[0008] As a preferred technical solution of the cooking appliance, a center line of the water return port is arranged at an angle to a center line of the first connecting port.

[0009] As an optimal technical solution for the cooking appliance, the return water chamber also includes a first cavity wall and a second cavity wall both perpendicular to the bottom wall, the first cavity wall and the second cavity wall are connected at an angle, the return water port is arranged on the first cavity wall, and the first connecting port is arranged on the second cavity wall.

[0010] As a preferred technical solution of the cooking appliance, the water return chamber further includes a first cavity wall and a third cavity wall both perpendicular to the bottom wall, the first cavity wall and the third cavity wall are arranged at intervals, the water return port is arranged on the first cavity wall, and the first communication port is arranged on the third cavity wall;

[0011] The water tank assembly further comprises a blocking member arranged on the bottom wall, wherein the blocking member is located between the first cavity wall and the third cavity wall, and the blocking member is opposite to the water return port.

[0012] As a preferred technical solution of the cooking appliance, the baffle is in the shape of a flat plate; or, the baffle is in the shape of a mesh.

[0013] As a preferred technical solution of the cooking appliance, an intermediate chamber is further provided in the water tank, the intermediate chamber is located between the water return chamber and the water supply chamber, the first communication port is communicated with the intermediate chamber, a second communication port is provided on the cavity wall of the intermediate chamber, and the second communication port is communicated with the water supply chamber;

[0014] The water tank assembly further includes a second filter screen, and the second filter screen is arranged at the second communication port.

[0015] As a preferred technical solution of the cooking appliance, the lower end of the second filter is higher than the bottom wall of the intermediate chamber; and / or;

[0016] The mesh size of the second filter is no larger than the mesh size of the first filter.

[0017] As a preferred technical solution of the cooking appliance, the center line of the water return port is parallel to the center line of the connecting port, and the center line of the water return port and the center line of the connecting port are staggered.

[0018] As a preferred technical solution of the cooking appliance, a slot is provided on the side wall of the first connecting port, and the first filter is plugged into the slot.

[0019] As a preferred technical solution for the cooking appliance, the water tank is provided with a water inlet, the water inlet is communicated with the water supply chamber, and the water tank further comprises a sealing plug, the sealing plug is used to close or open the water inlet.

[0020] The cooking appliance provided by the utility model has at least the following beneficial effects:

[0021] The cooking appliance comprises a water tank assembly and an oil fume and steam treatment device, wherein the water tank assembly comprises a water tank and a first filter screen, a return water chamber and a water supply chamber are arranged in the water tank, the water supply chamber is provided with a water outlet, a cavity wall of the return water chamber is provided with a return water outlet and a first connecting port, the first connecting port is configured to be connected with the water supply chamber, the oil fume and steam treatment device has a water inlet and a water outlet, the water outlet is used to supply water to the water inlet, and the return water outlet is connected to the water outlet; the first filter screen is arranged at the first connecting port, and the lower end of the first filter screen is higher than the bottom wall of the return water chamber. The cooking appliance provided by the utility model has an oil fume and steam treatment device that removes oil fume generated during cooking through water therein, and sewage generated by the oil fume and steam treatment device flows into the return water chamber from the return water port, and the sewage in the return water chamber is filtered through the first filter screen to become clean water and flows into the water supply chamber, so that the water can be reused and the utilization rate of water is improved. After the sewage flows into the return water chamber, the liquid level needs to firstly submerge the lower end of the first filter screen, and the first filter screen can play a filtering role. During this period, impurities in the sewage in the return water chamber will be precipitated and accumulated on the bottom wall of the return water chamber, thereby reducing the amount of impurities that need to be filtered by the first filter screen; when the liquid level in the return water chamber exceeds the lower end of the first filter screen, as the sewage flows into the return water chamber from the return water port, the sewage will flow toward the first filter screen. Since there is a certain distance between the return water port and the first filter screen, the impurities in the sewage will also be precipitated during the flow of the sewage, and the amount of impurities that need to be filtered by the first filter screen can also be reduced, thereby reducing the filtering load of the first filter screen and extending the maintenance cycle of the first filter screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic structural diagram of a water tank assembly in an embodiment of the utility model;

[0023] Figure 2 The structure of the water return chamber in the embodiment of the utility model is shown in FIG. Figure 1 ;

[0024] Figure 3 The structure of the water return chamber in the embodiment of the utility model is shown in FIG. Figure 2 ;

[0025] Figure 4 The structure of the cooking appliance in the embodiment of the utility model is shown in FIG. Figure 1 ;

[0026] Figure 5 The structure of the cooking appliance in the embodiment of the utility model is shown in FIG. Figure 2 .

[0027] In the figure:

[0028] 1. Water tank; 11. Box body; 111. Water supply chamber; 1111. Water outlet; 112. Water return chamber; 1121. Water return outlet; 1122. First communication port; 1123. Slot; 1124. First cavity wall; 1125. Second cavity wall; 1126. Third cavity wall; 1127. Fourth cavity wall; 1128. Bottom wall; 12. Partition; 13. Box cover; 131. Water inlet; 14. Sealing plug;

[0029] 2. first filter; 21. frame; 22. filter;

[0030] 3. Blocking parts;

[0031] 10. Water tank assembly; 20. Oil fume steam treatment device; 30. Water supply pipe; 40. Water return pipe. DETAILED DESCRIPTION

[0032] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions, and the first feature "above", "above" and "above" the second feature include the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. The first feature "below", "below" and "below" the second feature include the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0034] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0036] The present embodiment provides a cooking appliance, and the cooking appliance 10 may be a steamer, a steam-oven, a microwave-steamer, or the like.

[0037] For details, please refer to Figures 1 to 5 The cooking appliance comprises a water tank assembly 10 and a fume steam treatment device 20, wherein the water tank assembly 10 comprises a water tank 1 and a first filter screen 2. A return water chamber 112 and a water supply chamber 111 are arranged in the water tank 1, and a water outlet 1111 is arranged in the water supply chamber 111. A return water outlet 1121 and a first communication port 1122 are arranged on the cavity wall of the return water chamber 112, and the first communication port 1122 is configured to communicate with the water supply chamber 111. The fume steam treatment device 20 has a water inlet and a water outlet, and the water outlet 1111 is used to supply water to the water inlet, and the return water outlet 1121 is connected to the water outlet; the first filter screen 2 is arranged at the first communication port 1122. Among them, the water supply chamber 111 is used to store clean water, and the clean water in the water supply chamber 111 is supplied to the oil fume steam treatment device 20 of the cooking appliance through the water outlet 1111. The oil fume steam treatment device 20 absorbs steam through the water entering therein, and absorbs oil droplets and particulate impurities in the smoke to remove the oil fume generated during the cooking process. The sewage generated by the oil fume steam treatment device 20 flows back to the return water chamber 112 through the return water port 1121. The sewage in the return water chamber 112 is filtered through the first filter net 22 to become clean water and flow into the water supply chamber 111. In this way, water can be reused and the utilization rate of water is improved.

[0038] The water tank assembly in the prior art divides the inner cavity of the water tank into a water supply area and a return water area through a filter, and the bottom of the filter is flush with the bottom of the filter. This will cause the oil-rich and other particulate impurities in the sewage to flow to the filter with the water flow and adhere to the surface of the filter, resulting in a large filtering load on the filter. The filter requires frequent maintenance, which reduces the user experience.

[0039] In this regard, in this embodiment, the lower end of the first filter screen 2 is higher than the bottom wall 1128 of the return water chamber 112. With such a configuration, when sewage flows into the return water chamber 112 from the return water port 1121, the liquid level needs to first submerge the lower end of the first filter screen 2, and the first filter screen 2 can play a filtering role. During this period, impurities in the sewage in the return water chamber 112 will precipitate and accumulate on the bottom wall 1128 of the return water chamber 112, thereby reducing the amount of impurities that need to be filtered by the first filter screen 2; when the liquid level in the return water chamber 112 exceeds the lower end of the first filter screen 2, as the sewage flows into the return water chamber 112 from the return water port 1121, the sewage will flow to the first filter screen 2. Since there is a certain distance between the return water port 1121 and the first filter screen 2, the impurities in the sewage will also precipitate during the flow of the sewage, which can also reduce the amount of impurities that need to be filtered by the first filter screen 2. In this way, the filtering load of the first filter screen 2 can be reduced, and the maintenance cycle of the first filter screen 2 can be extended to improve the user experience.

[0040] The distance between the lower end of the first filter screen 2 and the bottom wall 1128 of the water return chamber 112 can be set as required. The top of the first filter screen 2 can be located below the top of the first chamber, or the two can be flush, or the top of the first filter screen 2 is higher than the top of the first chamber. The first filter screen 2 can be a coarse filter screen or a fine filter screen, and can be attached with a material having an adsorption function.

[0041] In addition, the number of water outlets 1111 can be set as needed, so as to supply clean water to other components through other water outlets 111 .

[0042] For details, please refer to Figure 1 In this embodiment, the water tank 1 includes a box body 11, a partition 12 and a box cover 13. The box body 11 has a receiving chamber; the partition 12 is arranged on the box body 11, and the partition 12 divides the receiving chamber into a return water chamber 112 and a water supply chamber 111, the top of the return water chamber 112 has a first opening, and the top of the water supply chamber 111 has a second opening; the box cover 13 covers the box body 11, and the box cover 13 is used to open or close the first opening and the second opening at the same time. In this way, when the box cover 13 is opened, the first filter 2 can be maintained, and the operation is simple and convenient.

[0043] Optionally, please continue to refer to Figure 1 A water inlet 131 is provided on the box cover 13, and the water inlet 131 is connected to the water supply chamber 111. The water tank 1 also includes a sealing plug 14, which is used to close or open the water inlet 131. When the sealing plug 14 opens the water inlet 131, it is convenient to add clean water to the water supply chamber 111.

[0044] Optionally, please continue to refer to Figure 1The side wall of the first communication port 1122 is provided with a slot 1123, and the first filter screen 2 is plugged into the slot 1123. Such a configuration facilitates the assembly and disassembly of the first filter screen 2. Specifically, the first filter screen 2 includes a frame 21, and a filter screen 22 fixed to the frame 21, the frame 21 and the slot 1123 are plugged in and matched, and the frame 21 and the slot 1123 are sealed to prevent the sewage in the return water chamber 112 from entering the water supply chamber 111 through the gap between the frame 21 and the slot 1123.

[0045] Optionally, see Figure 2 , the center line of the return water port 1121 and the center line of the first connecting port 1122 are set at an angle. Specifically, the center line of the return water port 1121 is L1, the center line of the first connecting port 1122 is L2, and the angle between L1 and L2 is α. With this arrangement, the flow direction of the sewage from the return water port 1121 into the return water chamber 112 is different from the flow direction of the sewage through the first filter screen 2, so that the flow path of the sewage in the return water chamber 112 is not a straight line, which increases the time for the sewage to flow through the return water chamber 112, and the change in the flow direction of the sewage will lead to a decrease in its flow rate, which can also increase the time for the sewage to flow through the return water chamber 112, which can improve the sedimentation effect of impurities, further reduce the load of the first filter screen 2, and extend the maintenance cycle of the first filter screen 2.

[0046] Preferably, the return water chamber 112 also includes a first cavity wall 1124 and a second cavity wall 1125 which are both perpendicular to the bottom wall 1128, the first cavity wall 1124 and the second cavity wall 1125 are connected at an angle, the return water port 1121 is arranged on the first cavity wall 1124, and the first connecting port 1122 is arranged on the second cavity wall 1125. In this way, after the sewage flows into the return water chamber 112 from the return water port 1121, the flow direction changes greatly, and the deposition effect of impurities in the sewage is also better. Specifically, the return water chamber 112 includes a first cavity wall 1124 and a third cavity wall 1126 which are arranged at intervals, and a second cavity wall 1125 and a fourth cavity wall 1127 which are arranged at intervals, and the first cavity wall 1124, the second cavity wall 1125, the third cavity wall 1126 and the fourth cavity wall 1127 are connected in sequence and end to end, and the whole is a quadrilateral. Further preferably, the first cavity wall 1124 and the third cavity wall 1126 are arranged in parallel, the second cavity wall 1125 and the fourth cavity wall 1127 are arranged in parallel, the return water chamber 112 is specifically rectangular, the angle between the first cavity wall 1124 and the second cavity wall 1125 is 90°, and α is also 90°.

[0047] As an alternative, see Figure 3The water return port 1121 is arranged on the first cavity wall 1124, and the first communication port 1122 is arranged on the third cavity wall 1126. At this time, the water return port 1121 and the communication port are located in the same straight line direction. The water tank assembly 10 also includes a baffle 3 arranged on the bottom wall 1128. The baffle 3 is located between the first cavity wall 1124 and the third cavity wall 1126, and the baffle 3 is opposite to the water return port 1121. In this way, after the sewage flows into the return water chamber 112 from the water return port 1121, it will impact the baffle 3, thereby reducing the kinetic energy of the sewage, and also increase the time for the sewage to flow through the return water chamber 112, thereby improving the deposition effect of impurities; and in the process of the sewage impacting the baffle 3, it is also easy to promote the deposition of impurities, which can further reduce the load of the first filter screen 2 and extend the maintenance cycle of the first filter screen 2. The baffle 3 may be in the form of a flat plate, which can change the flow direction of the sewage, increase the path length of the sewage flowing through the return water chamber 112, and further increase the time for the sewage to flow through the return water chamber 112. Alternatively, the baffle 3 may also be in the form of a mesh, and the mesh on the baffle 3 may have a strong disturbing effect on the sewage, and may play a preliminary filtering role on the sewage to promote the deposition of impurities. Preferably, the first connecting port 1122 is arranged adjacent to the second cavity wall 1125, so that the flow path of the sewage from the return water port 1121 to the connecting port can be relatively long.

[0048] As an alternative solution, the center line of the return water port 1121 is parallel to the center line of the first connecting port 1122, and the center line of the return water port 1121 is staggered with the center line of the first connecting port 1122. In this way, after the sewage flows into the return water chamber 112 from the return water port 1121, it also needs to change the flow direction to pass through the first filter screen 2 located at the first connecting port 1122, which can also increase the time for the sewage to flow through the return water chamber 112, and can improve the sedimentation effect of impurities, so as to further reduce the load of the first filter screen 2 and extend the maintenance cycle of the first filter screen 2.

[0049] Optionally, an intermediate chamber (not shown in the drawings) is provided in the water tank 1, the intermediate chamber is located between the return chamber 112 and the water supply chamber 111, the first communication port 1122 is connected to the intermediate chamber, the cavity wall of the intermediate chamber is provided with a second communication port, the second communication port is connected to the water supply chamber 111; the water tank assembly 10 also includes a second filter screen, the second filter screen is provided at the second communication port. With such a configuration, preliminary filtration can be performed through the first filter screen 2, and secondary filtration can be performed through the second filter screen, which can also reduce the filtration load of the first filter screen 2.

[0050] Preferably, the mesh of the second filter screen is not larger than the mesh of the first filter screen 2. In this way, the filtering level of the second filter screen is not lower than the filtering level of the first filter screen 2.

[0051] Preferably, the lower end of the second filter screen is higher than the bottom wall of the middle chamber. With this arrangement, sewage can also be effectively deposited when flowing through the middle chamber, thereby reducing the filtering load of the second filter screen and extending the maintenance period of the second filter screen.

[0052] Please refer to Figure 4 and Figure 5 The cooking appliance further comprises a water pump (not shown in the drawings). The pump inlet of the water pump 20 is connected to the water outlet 1111, and the pump outlet of the water pump is connected to the water inlet end. Specifically, in the present embodiment, the cooking appliance further comprises a water supply pipe 30, a water return pipe 40 and a connecting pipe (not shown in the drawings). The pump inlet of the water pump is connected to the water outlet 1111 through the water supply pipe 30; the pump outlet of the water pump is connected to the water inlet end of the oil fume steam treatment device 20 through the connecting pipe; the water outlet end of the oil fume steam treatment device 20 is connected to the return water port 1121 through the return water pipe 40.

[0053] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A cooking appliance, characterized in that: It comprises a water tank assembly (10) and an oil fume steam treatment device (20), wherein the water tank assembly (10) comprises: A water tank (1), wherein a water return chamber (112) and a water supply chamber (111) are provided in the water tank (1), the water supply chamber (111) is provided with a water outlet (1111), a cavity wall of the water return chamber (112) is provided with a water return port (1121) and a first communication port (1122), the first communication port (1122) being configured to communicate with the water supply chamber (111), the oil fume steam treatment device (20) having a water inlet and a water outlet, the water outlet (1111) being used to supply water to the water inlet, and the water return port (1121) being connected to the water outlet; A first filter screen (2) is arranged at the first connecting port (1122), and a lower end of the first filter screen (2) is higher than a bottom wall (1128) of the water return chamber (112).

2. The cooking appliance according to claim 1, characterized in that: The center line of the water return port (1121) and the center line of the first communication port (1122) are arranged at an angle.

3. The cooking appliance according to claim 2, characterized in that: The water return chamber (112) further comprises a first cavity wall (1124) and a second cavity wall (1125) both of which are perpendicular to the bottom wall (1128); the first cavity wall (1124) and the second cavity wall (1125) are connected at an angle; the water return port (1121) is arranged on the first cavity wall (1124); and the first connecting port (1122) is arranged on the second cavity wall (1125).

4. The cooking appliance according to claim 1, characterized in that: The water return chamber (112) further comprises a first cavity wall (1124) and a third cavity wall (1126) both of which are perpendicular to the bottom wall (1128); the first cavity wall (1124) and the third cavity wall (1126) are arranged at intervals; the water return port (1121) is arranged on the first cavity wall (1124); and the first communication port (1122) is arranged on the third cavity wall (1126); The water tank assembly (10) further comprises a blocking member (3) arranged on the bottom wall (1128), wherein the blocking member (3) is located between the first cavity wall (1124) and the third cavity wall (1126), and the blocking member (3) is opposite to the water return port (1121).

5. The cooking appliance according to claim 4, characterized in that: The blocking member (3) is in the shape of a flat plate; or, the blocking member (3) is in the shape of a mesh.

6. The cooking appliance according to claim 1, characterized in that: The water tank (1) is also provided with an intermediate chamber, the intermediate chamber is located between the return chamber (112) and the water supply chamber (111), the first communication port (1122) is in communication with the intermediate chamber, the cavity wall of the intermediate chamber is provided with a second communication port, the second communication port is in communication with the water supply chamber (111); The water tank assembly (10) further comprises a second filter screen, wherein the second filter screen is arranged at the second communication port.

7. The cooking appliance according to claim 6, characterized in that: The lower end of the second filter screen is higher than the bottom wall of the intermediate chamber; and / or; The mesh size of the second filter screen is no larger than the mesh size of the first filter screen (2).

8. The cooking appliance according to claim 1, characterized in that: The center line of the water return port (1121) is parallel to the center line of the first communication port (1122), and the center line of the water return port (1121) is staggered with the center line of the first communication port (1122).

9. The cooking appliance according to any one of claims 1 to 8, characterized in that: The side wall of the first communication port (1122) is provided with a slot (1123), and the first filter screen (2) is plugged into the slot (1123).

10. The cooking appliance according to any one of claims 1 to 8, characterized in that: The water tank (1) is provided with a water injection port (131), the water injection port (131) being in communication with the water supply chamber (111), and the water tank (1) further comprises a sealing plug (14), the sealing plug (14) being used to close or open the water injection port (131).

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