Knob screen and steaming oven

Abstract

The utility model relates to a knob screen and a steaming oven, the knob screen comprises a base, a knob assembly and a screen assembly, and the base is used for being arranged on a shell of the steaming oven; the knob assembly is arranged on the base and can rotate relative to the base; the screen assembly comprises a screen support, a circuit board, a display screen and a glue layer, the screen support is arranged on the base, the display screen is hermetically connected to the end, away from the base, of the screen support, the circuit board is arranged at the end, close to the base, of the screen support, and the glue layer is stacked on the side face, facing the base, of the circuit board to hermetically fix the circuit board and the screen support. The glue layer not only can fixedly connect the circuit board with the screen bracket, but also can prevent the circuit board from being exposed, and ensures the sealing performance between the circuit board and the screen bracket, so that external water vapor is prevented from directly contacting with the circuit board or entering the screen assembly through a gap between the display screen and the screen bracket; therefore, normal operation of the knob screen can be ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of cooking utensils, in particular to a knob screen and a steam oven. Background Art

[0002] Some cooking appliances such as steam ovens use knob screens to meet display and operation requirements. The knob screen can not only be rotated to adjust parameters, but also display different pictures in the middle display area to enhance the user's operating experience and improve the overall appearance of the steam oven.

[0003] However, the knob screen is generally installed on the upper glass of the steam oven. When the door is opened after cooking is completed, a large amount of water vapor will flow upward. If the knob screen is not well sealed, the water vapor will enter the knob screen, causing the knob screen to display poorly. Utility Model Content

[0004] Based on this, it is necessary to provide a knob screen and a steam oven to address the above problems, so as to ensure the sealing of the knob screen and ensure that the knob screen can work normally.

[0005] The utility model first provides a knob screen, comprising: a base, used to be set on the outer shell of a steam oven; a knob assembly, which is arranged on the base and can rotate relative to the base; and a screen assembly, including a screen bracket, a circuit board, a display screen and a glue layer, the screen bracket is arranged on the base, the display screen is sealed and connected to an end of the screen bracket away from the base, the circuit board is arranged at an end of the screen bracket close to the base, and the glue layer is stacked and arranged on a side of the circuit board facing the base to seal and fix the circuit board to the screen bracket.

[0006] In the above-mentioned knob screen, a glue layer is arranged on the side of the circuit board facing the base, which can not only fix the circuit board and the screen bracket, but also prevent the circuit board from being exposed and ensure the sealing between the circuit board and the screen bracket, thereby preventing external water vapor from directly contacting the circuit board or entering the screen assembly through the gap between the display screen and the screen bracket, causing damage to the circuit board or fogging inside the display screen, and the glue layer will not slide or fall off relative to the circuit board or the screen bracket, thereby providing better protection for the screen assembly and ensuring that the knob screen can work normally; and, since the glue layer can simultaneously play the role of fixing and sealing, it can also reduce the number of parts, simplify the assembly steps, and reduce the cost.

[0007] In one of the embodiments, an annular mounting groove is provided at one end of the screen bracket close to the circuit board, and the circuit board is overlapped with the bottom wall of the mounting groove.

[0008] In this way, the mounting groove is used to limit the position of the circuit board, so that the user can install the circuit board on the screen bracket, while also ensuring the stability and reliability of the circuit board relative to the screen bracket.

[0009] In one of the embodiments, a side surface of the circuit board facing away from the display screen and a side wall of the mounting groove are surrounded to form a glue filling area, and the glue layer is configured as a glue filling layer.

[0010] Such an arrangement enables the glue layer to completely cover the circuit board and fill the gap between the circuit board and the side wall of the mounting groove, thereby ensuring the sealing effect of the circuit board.

[0011] In one of the embodiments, an annular fitting surface is provided at one end of the screen bracket close to the display screen, and the display screen is sealed to the fitting surface by gluing.

[0012] With this arrangement, the display screen is fixed and sealed to the screen bracket by glue, which simplifies the assembly steps, and the fitting surface can increase the contact area between the display screen and the screen bracket, thereby improving the stability, reliability and sealing of the connection between the display screen and the screen bracket.

[0013] In one of the embodiments, an annular groove is provided on the outer periphery of the base, and the knob screen further includes a sealing member arranged in the groove, and the outer periphery of the sealing member can abut against the outer shell of the steam oven.

[0014] With such arrangement, the seal can prevent external water vapor from entering the interior of the steam oven and affecting the normal operation of the internal components of the steam oven.

[0015] In one of the embodiments, the knob screen further includes a mounting piece, and the mounting piece is used to be arranged on the outer shell of the steam oven, and one end of the base facing away from the screen assembly is detachably connected to the mounting piece.

[0016] With such arrangement, the mounting member can facilitate disassembly, assembly or maintenance of the base and the knob assembly and screen assembly mounted on the base.

[0017] In one of the embodiments, one of the base and the mounting piece is provided with a buckle, and the other is provided with a slot that can be snap-fitted with the buckle; and / or, the knob screen also includes a fastener, which passes through the mounting piece and is connected to the base by a thread; and / or, one of the base and the mounting piece is provided with a positioning column, and the other is provided with a positioning groove that can be plugged into and cooperate with the positioning column.

[0018] With this arrangement, the buckle and the slot are engaged with each other to pre-fix and position the base and the mounting piece; the fasteners make the base and the mounting piece reliably connected, and the assembly process is simple and convenient; the positioning column and the positioning slot cooperate to ensure that the installation angles of the circuit board and the display are correct, and the problem of the knob screen being installed upside down will not occur.

[0019] In one of the embodiments, a reinforcing rib is provided on a side of the mounting member facing away from the base.

[0020] With such arrangement, the reinforcing ribs can improve the strength of the mounting parts, prevent the mounting parts from being deformed or cracked due to long-term lateral impact, and ensure the overall reliability of the mounting parts and the knob screen.

[0021] In one of the embodiments, the knob assembly includes a knob bracket and a knob body, the knob bracket is disposed on the base and can rotate relative to the base, and the knob body is connected to the knob bracket and covers the periphery of the screen assembly.

[0022] In this configuration, the knob bracket is used to support the knob body, and the knob body is wrapped around the periphery of the screen assembly to facilitate the user to control the knob assembly and also ensure a neat appearance.

[0023] The utility model also provides a steam oven, comprising a shell and the knob screen as described above, wherein the base is arranged on the shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the conventional technology, the drawings required for use in the embodiments or the conventional technology descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0025] Figure 1 This is a schematic diagram of the three-dimensional structure of a steam-bake machine according to one embodiment of the utility model;

[0026] Figure 2 The utility model provides Figure 1 Schematic diagram of the partial three-dimensional structure of the middle knob screen;

[0027] Figure 3 The utility model provides Figure 2 A cross-sectional view of

[0028] Figure 4 The utility model provides Figure 1 A schematic diagram of a local three-dimensional structure from another viewing angle;

[0029] Figure 5The utility model provides Figure 4 A schematic diagram of the enlarged structure at A in the middle;

[0030] Figure 6 The utility model provides Figure 4 sectional view of .

[0031] Figure numerals: 1. base; 11. groove; 12. buckle; 13. positioning column; 14. threaded hole; 2. knob assembly; 21. knob bracket; 22. knob body; 3. screen assembly; 31. screen bracket; 311. mounting groove; 312. fitting surface; 32. circuit board; 33. display screen; 34. glue layer; 4. seal; 5. mounting part; 51. slot; 52. positioning groove; 53. assembly hole; 54. reinforcing rib; 55. wiring hole; 6. outer shell; 61. upper glass; 62. mounting box; 63. mounting port. DETAILED DESCRIPTION

[0032] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0033] It should be noted that when a component is referred to as being "fixed to" or "disposed on" another component, it may be directly on the other component or there may also be a central component. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may be a central component at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in the specification of this application are for illustrative purposes only and do not represent the only implementation method.

[0034] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0035] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first feature is directly in contact with the second feature, or the first feature and the second feature are indirectly in contact through an intermediate medium. Moreover, a first feature being “above”, “above” or “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below” or “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0036] Unless otherwise defined, all technical and scientific terms used in the specification of this application have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used in the specification of this application includes any and all combinations of one or more related listed items.

[0037] Some cooking appliances such as steam ovens use knob screens to meet display and operation requirements. The knob screen can not only be rotated to adjust parameters, but also display different pictures in the middle display area to enhance the user's operating experience and improve the overall appearance of the steam oven. However, the knob screen is generally installed on the upper glass of the steam oven. When the door is opened after cooking, a large amount of water vapor will flow upward. If the knob screen is not sealed well, the water vapor will enter the knob screen, resulting in poor display of the knob screen.

[0038] In the relevant existing technology, in order to ensure the sealing of the knob screen, a sealing ring is generally provided inside the knob screen, which not only increases the number of parts and makes the assembly cumbersome, but also makes the sealing ring easy to slide or even fall off, and also leads to poor waterproof performance, and water vapor easily enters the knob screen, affecting the normal use of the knob screen.

[0039] In order to solve the above problems, Figures 1 to 6 As shown, the utility model first provides a knob screen to ensure the sealing of the knob screen and ensure that the knob screen can work normally.

[0040] like Figures 1 to 3As shown, specifically, the knob screen includes a base 1, a knob assembly 2 and a screen assembly 3, wherein: the base 1 is used to be set on the outer shell 6 of the steam oven; the knob assembly 2 is set on the base 1 and can rotate relative to the base 1; the screen assembly 3 includes a screen bracket 31, a circuit board 32, a display screen 33 and a glue layer 34, the screen bracket 31 is set on the base 1, the display screen 33 is sealed and connected to the end of the screen bracket 31 away from the base 1, the circuit board 32 is set at the end of the screen bracket 31 close to the base 1, and the glue layer 34 is stacked on a side of the circuit board 32 facing the base 1 to seal and fix the circuit board 32 and the screen bracket 31.

[0041] The circuit board 32 is electrically connected to the display screen 33 and the internal components of the steam oven, so that the rotation angle of the knob assembly 2 is identified by the circuit board 32, the steam oven is controlled to perform corresponding work according to the rotation angle of the knob assembly 2, and the display screen 33 is controlled to display corresponding pictures. The circuit board 32 can be set to the conventional method in the prior art for identifying the rotation angle of the knob assembly 2 and the control method of the display screen 33, and the embodiment of the utility model is not specifically limited here.

[0042] In the knob screen provided by the embodiment of the utility model, the display screen 33 is sealed and connected to the screen bracket 31, so that it is possible to prevent external water vapor from entering the interior of the screen assembly 3 through the gap between the display screen 33 and the screen bracket 31, causing damage to the circuit board 32 or fogging inside the display screen 33; and a glue layer 34 is arranged on the side of the circuit board 32 facing the base 1, which can not only fix the circuit board 32 and the screen bracket 31, but also prevent the circuit board 32 from being exposed and ensure the sealing between the circuit board 32 and the screen bracket 31, so as to prevent external water vapor from directly contacting the circuit board 32 or entering the interior of the screen assembly 3 through the gap between the display screen 33 and the screen bracket 31, causing damage to the circuit board 32 or fogging inside the display screen 33, and the glue layer 34 will not slide or fall off relative to the circuit board 32 or the screen bracket 31. That is to say, the glue layer 34 can reliably fix the circuit board 32 to the screen bracket 31 and ensure the sealing of the screen assembly 3, thereby providing better protection for the screen assembly 3 and ensuring that the knob screen can work normally; and, since the glue layer 34 can simultaneously fix and seal, it can also reduce the number of parts, simplify the assembly steps, and reduce costs.

[0043] The circuit board 32 may be configured as a PCBA, that is, electronic components such as resistors, capacitors, inductors, and ICs are fixed on a printed circuit board by welding or plugging.

[0044] like Figure 3As shown, the knob assembly 2 includes a knob bracket 21 and a knob body 22. The knob bracket 21 is disposed on the base 1 and can rotate relative to the base 1. The knob body 22 is connected to the knob bracket 21 and covers the periphery of the screen assembly 3. The knob bracket 21 is used to be rotatably connected to the base 1 and to support the knob body 22. The knob body 22 covers the periphery of the screen assembly 3, so that the user can control the knob assembly 2, and the screen assembly 3 can be made not exposed except for the display screen 33 to ensure a neat appearance.

[0045] Among them, the knob bracket 21 and the knob body 22 can be an integrated structure or a split structure and fixedly connected by snapping, gluing or screwing. As long as it can be ensured that the knob bracket 21 can rotate synchronously with the knob body 22, the embodiment of the utility model does not make any specific restrictions here.

[0046] like Figure 3 As shown, an annular mounting groove 311 is provided at one end of the screen bracket 31 close to the circuit board 32, and the circuit board 32 overlaps the bottom wall of the mounting groove 311. The mounting groove 311 is used to limit the circuit board 32, so that the user can install the circuit board 32 on the screen bracket 31, and at the same time, it can also ensure the stability and reliability of the circuit board 32 relative to the screen bracket 31, and ensure the normal operation of the screen assembly 3.

[0047] like Figure 3 As shown, in one embodiment, a side of the circuit board 32 facing away from the display screen 33 and the side wall of the mounting groove 311 are surrounded to form a glue filling area, and the glue layer 34 is set as a glue filling layer. The glue layer 34 is formed by glue filling, so that the glue layer 34 can completely cover the circuit board 32 and fill the gap between the circuit board 32 and the side wall of the mounting groove 311, thereby ensuring the sealing effect of the circuit board 32. In addition, the glue layer 34 can have a certain thickness in the glue filling area to ensure the fixing effect of the circuit board 32 and the screen bracket 31, so that the screen bracket 31, the circuit board 32 and the glue layer 34 are not easy to loosen.

[0048] Of course, in other embodiments, the circuit board 32 and the screen bracket 31 can also be sealed and fixed by glue at the end of the screen bracket 31 away from the display screen 33. As long as the reliability of the connection between the circuit board 32 and the screen bracket 31 and the sealing of the circuit board 32 can be guaranteed, the embodiment of the utility model is not specifically limited here.

[0049] Among them, the side of the circuit board 32 facing away from the display screen 33 can be first fixedly connected to the base 1, and then the circuit board 32 can be embedded in the mounting groove 311 of the screen bracket 31, and the circuit board 32 and the screen bracket 31 can be sealed and fixed by glue, so that the screen bracket 31 is also fixedly connected to the base 1. Of course, after the circuit board 32 and the screen bracket 31 are sealed and fixed, the screen bracket 31 can also be directly fixedly connected to the base 1.

[0050] like Figure 3 As shown, in one embodiment, a ring-shaped fitting surface 312 is provided at one end of the screen bracket 31 close to the display screen 33, and the display screen 33 is sealed with the fitting surface 312 by gluing. The display screen 33 is also fixed and sealed with the screen bracket 31 by glue, thereby reducing the number of parts and simplifying the assembly steps. In addition, the fitting surface 312 can increase the contact area between the display screen 33 and the screen bracket 31, improve the stability and reliability of the connection between the display screen 33 and the screen bracket 31, and also improve the sealing between the display screen 33 and the screen bracket 31.

[0051] Of course, in other embodiments, an annular receiving groove may be opened at one end of the screen bracket 31 away from the circuit board 32. After the display screen 33 is received in the receiving groove, the display screen 33 is sealed and fixed in the receiving groove by means of glue injection, so as to seal the display screen 33 and the gap between the display screen and the screen bracket 31.

[0052] like Figure 2 and Figure 6 As shown, the outer periphery of the base 1 is provided with an annular groove 11, and the knob screen further includes a sealing member 4 disposed in the groove 11, and the outer periphery of the sealing member 4 can abut against the outer shell 6 of the steam oven. The outer shell 6 of the steam oven is provided with a mounting opening 63, and the base 1 is disposed in the mounting opening 63. In the assembled state, the sealing member 4 is pressed between the base 1 and the inner wall of the mounting opening 63 to seal the mounting opening 63, so as to prevent external water vapor from entering the steam oven through the gap between the base 1 and the inner wall of the mounting opening 63 and affecting the normal operation of the internal components of the steam oven.

[0053] like Figure 4 As shown, the knob screen also includes a mounting member 5, which is used to be set on the shell 6 of the steam oven, and the end of the base 1 away from the screen assembly 3 is detachably connected to the mounting member 5. The mounting member 5 is fixedly connected to the shell 6 of the steam oven, and the base 1 is detachably connected to the mounting member 5, so as to facilitate the disassembly or maintenance of the base 1 and the knob assembly 2 and the screen assembly 3 installed on the base 1.

[0054] Preferably, the mounting member 5 is disposed inside the outer shell 6 of the steam oven, and the base 1 passes through the mounting opening 63 and is connected to the mounting member 5, so that the mounting member 5 is not exposed to ensure that the overall appearance of the steam oven is neat. The mounting member 5 can be fixedly connected to the inner side of the outer shell 6 of the steam oven by a plurality of screws, bolts and other components, or the mounting member 5 can also be fixedly connected to the outer shell 6 of the steam oven by other means such as gluing, so as to ensure the stability and reliability of the connection between the mounting member 5 and the outer shell 6, thereby ensuring the stability and reliability of the knob screen on the outer shell 6.

[0055] In one embodiment, if Figure 3 and Figure 5 As shown, one of the base 1 and the mounting member 5 is provided with a buckle 12, and the other is provided with a slot 51 that can be engaged with the buckle 12. The buckle 12 cooperates with the slot 51, and the structure is simple, which is convenient for users to disassemble and assemble the base 1 and the mounting member 5.

[0056] The number of buckles 12 can be two, the two buckles 12 are arranged at intervals, the slots 51 and the buckles 12 are arranged one by one, and the two sets of buckles 12 cooperate with the slots 51 to ensure the stability and reliability of the connection between the base 1 and the mounting member 5, and at the same time, the difficulty of assembly will not be increased. Of course, the number of buckles 12 can also be one, three, four or more, and the embodiment of the utility model does not make specific restrictions here.

[0057] like Figures 5 and 6 As shown, the knob screen also includes a fastener (not shown), which passes through the mounting member 5 and is connected to the base 1 by threads. Specifically, the mounting member 5 is provided with an assembly hole 53 corresponding to the fastener, and the base 1 is provided with a threaded hole 14 corresponding to both the fastener and the assembly hole 53. During the assembly process, the base 1 and the mounting member 5 are first engaged with the snap 12 and the card slot 51 to pre-fix and position the base 1 and the mounting member 5, so that the threaded hole 14 is aligned with the assembly hole 53, and then the fastener is passed through the assembly hole 53 and is connected to the threaded hole 14 by threads, so that the base 1 and the mounting member 5 are reliably connected, and the assembly process is simple and convenient.

[0058] Among them, the fasteners can be set as elements such as screws and bolts, and the number of threaded holes 14 can be two, the two threaded holes 14 are arranged at intervals, the assembly holes 53 and the fasteners are arranged one-to-one with the threaded holes 14, and the two sets of fasteners, assembly holes 53 and threaded holes 14 can ensure the stability and reliability of the connection between the base 1 and the mounting member 5, and will not increase the difficulty of assembly. Of course, the number of threaded holes 14 can also be one, three, four or more, and the embodiment of the utility model does not make specific restrictions here.

[0059] Of course, in other embodiments, the base 1 and the mounting member 5 can also be fixed only by the buckle 12 and the slot 51, or only by the fastener and the assembly hole 53 and the threaded hole 14. As long as the base 1 and the mounting member 5 can be reliably connected, the embodiments of the utility model are not specifically limited here.

[0060] like Figure 3 and Figure 5 As shown, one of the base 1 and the mounting member 5 is provided with a positioning column 13, and the other is provided with a positioning groove 52 that can be plugged and matched with the positioning column 13. In the process of assembling the knob screen, the positioning column 13 is first aligned with the positioning groove 52, so that the installation angle of the circuit board 32 and the display screen 33 is correct, and the problem of reverse installation of the knob screen will not occur. When the positioning column 13 is aligned with the positioning groove 52, the buckle 12 can also be aligned with the card slot 51, and the fastener can be aligned with the assembly hole 53 and the threaded hole 14, so that the user can install the knob screen.

[0061] like Figure 4 As shown, since the base 1 and the mounting member 5 are subjected to lateral impact force during the rotation of the knob assembly 2 relative to the base 1, a reinforcing rib 54 is provided on the side of the mounting member 5 away from the base 1. The reinforcing rib 54 can improve the strength of the mounting member 5, prevent the mounting member 5 from being deformed or cracked due to the lateral impact force for a long time, and ensure the reliability of the mounting member 5 and the knob screen as a whole.

[0062] like Figure 5 As shown, the mounting member 5 is further provided with a wiring hole 55, and the cables on the circuit board 32 can pass through the wiring hole 55 and be electrically connected to the internal components of the steam oven.

[0063] like Figure 1 and Figure 4 As shown, the embodiment of the utility model further provides a steam oven, comprising a housing 6 and the above-mentioned knob screen, and the base 1 is arranged on the housing 6. Specifically, the housing 6 may include an upper glass 61 and a mounting box 62 arranged in the upper glass 61, and the mounting member 5 may be fixed to the side of the mounting box 62 away from the upper glass 61 by means of screws, bolts and other elements, and the mounting box 62 may protect the upper glass 61, and prevent the mounting member 5 from being directly fixed to the upper glass 61, which may cause the upper glass 61 to be easily damaged. The upper glass 61 and the mounting box 62 are both provided with mounting openings 63, and the outer periphery of the sealing member 4 abuts against the mounting opening 63 on the upper glass 61.

[0064] Of course, in other implementations, the knob screen can also be used in other cooking appliances such as rice cookers, kettles, and air fryers.

[0065] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0066] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the scope of patent protection of the present application shall be subject to the attached claims.

Claims

1. A knob screen, characterized in that: include: A base (1) for being arranged on a housing (6) of a steam oven; a knob assembly (2), disposed on the base (1) and capable of rotating relative to the base (1); and A screen assembly (3) comprises a screen bracket (31), a circuit board (32), a display screen (33) and a glue layer (34), wherein the screen bracket (31) is arranged on the base (1), the display screen (33) is sealed and connected to an end of the screen bracket (31) away from the base (1), the circuit board (32) is arranged on an end of the screen bracket (31) close to the base (1), and the glue layer (34) is stacked and arranged on a side of the circuit board (32) facing the base (1) so as to seal and fix the circuit board (32) and the screen bracket (31).

2. The knob screen according to claim 1, characterized in that: An annular mounting groove (311) is provided at one end of the screen bracket (31) close to the circuit board (32), and the circuit board (32) is overlapped on the bottom wall of the mounting groove (311).

3. The knob screen according to claim 2, characterized in that: A side surface of the circuit board (32) facing away from the display screen (33) and a side wall of the mounting groove (311) are arranged to form a glue filling area, and the glue layer (34) is arranged as a glue filling layer.

4. The knob screen according to claim 1, characterized in that: An annular fitting surface (312) is provided at one end of the screen bracket (31) close to the display screen (33), and the display screen (33) is bonded to the fitting surface (312) by gluing.

5. The knob screen according to claim 1, characterized in that: The outer periphery of the base (1) is provided with an annular groove (11), and the knob screen further comprises a sealing member (4) arranged in the groove (11), and the outer periphery of the sealing member (4) can abut against the outer shell (6) of the steam oven.

6. The knob screen according to claim 1, characterized in that: The knob screen also includes a mounting member (5), which is used to be arranged on the outer shell (6) of the steam oven, and one end of the base (1) facing away from the screen assembly (3) is detachably connected to the mounting member (5).

7. The knob screen according to claim 6, characterized in that: One of the base (1) and the mounting member (5) is provided with a buckle (12), and the other is provided with a slot (51) capable of engaging with the buckle (12); and / or, The knob screen further comprises a fastener, the fastener passes through the mounting member (5) and is connected to the base (1) via a thread; and / or, One of the base (1) and the mounting member (5) is provided with a positioning column (13), and the other is provided with a positioning groove (52) capable of plugging and cooperating with the positioning column (13).

8. The knob screen according to claim 6, characterized in that: A reinforcing rib (54) is provided on a side of the mounting member (5) facing away from the base (1).

9. The knob screen according to claim 1, characterized in that: The knob assembly (2) comprises a knob bracket (21) and a knob body (22); the knob bracket (21) is arranged on the base (1) and is rotatable relative to the base (1); the knob body (22) is connected to the knob bracket (21) and covers the periphery of the screen assembly (3).

10. A steam oven, characterized in that: It comprises a housing (6) and a knob screen as claimed in any one of claims 1 to 9, wherein the base (1) is arranged on the housing (6).

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