Electromagnetic valve sealing structure and steam oven

Abstract

The utility model provides a kind of electromagnetic valve sealing structure and steam oven, the electromagnetic valve sealing structure includes valve body and coil main body;The valve body is equipped with the flow passage mouth towards the coil main body;The coil main body is equipped with the valve stem extending to the flow passage mouth direction, and the valve stem is equipped with sealing washer;The outer periphery of the sealing washer is clamped between the valve body and the coil main body, and the middle part of the sealing washer can be released to close the flow passage mouth.The electromagnetic valve sealing structure and steam oven provided by the utility model can effectively ensure the sealing property, prevent high-temperature steam from directly contacting the coil, cause the temperature of electromagnetic valve to be too high, and improve the integrity and sealing effect of the sealing.

Description

Technical Field

[0001] This utility model relates to the field of kitchen appliance technology, and in particular to a solenoid valve sealing structure and a steam oven. Background Technology

[0002] Currently, with the increasing market demand for steam ovens, manufacturers in various regions have launched dual-cavity steam and bake ovens. Given China's long-standing dietary habits, steaming is a frequently used cooking method; therefore, the typical configuration of a dual-cavity steam and bake oven is one cavity dedicated to steaming, and the other cavity combining steaming and baking.

[0003] Existing structures that achieve steam generation in both chambers can use two independent steam generation systems (two water pumps, two water level detectors, and two steam generators), but the high cost of their electrical components leads to a higher overall manufacturing cost. A single steam generator solution requires a solenoid valve to control the independent steam passages in both chambers. However, traditional solenoid valves typically have two sealing rings: one for the gap between the valve body and the coil body, and another for controlling the internal flow of steam within the valve body. With this structure, steam entering the valve body travels to the guide chamber and then into the coil body, causing the coil temperature to become excessively high and potentially damaging the solenoid valve.

[0004] Therefore, there is a need to provide an improved technical solution that addresses the shortcomings of the existing technology. Utility Model Content

[0005] The purpose of this invention is to provide a sealing structure for an electromagnetic valve that effectively ensures sealing while preventing high-temperature steam from directly contacting the coil and causing excessive temperature rise in the electromagnetic valve. At the same time, it improves the overall sealing performance and sealing effect.

[0006] Another objective of this invention is to provide a steam oven that includes the aforementioned electromagnetic valve sealing structure.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A solenoid valve sealing structure includes a valve body and a coil body;

[0009] The valve body is provided with a flow channel opening facing the coil body;

[0010] The coil body is provided with a valve stem extending toward the flow channel opening, and a sealing gasket is provided on the valve stem; the outer periphery of the sealing gasket is sandwiched between the valve body and the coil body, and the middle part of the sealing gasket can be releasably sealed to close the flow channel opening.

[0011] According to one embodiment of the present invention, the middle part of the sealing gasket protrudes towards the flow channel opening to form a sealing step.

[0012] According to one embodiment of the present invention, a mounting plate is fixedly provided on the side of the sealing gasket away from the flow channel opening, and the middle part of the mounting plate is connected to the end of the valve stem.

[0013] According to one embodiment of the present invention, the mounting plate is provided with a plug, and the sealing gasket is provided with a socket corresponding to the plug.

[0014] According to one embodiment of the present invention, the mounting plate has a connecting cylinder protruding towards the coil body in the middle; the end of the valve stem is T-shaped and located inside the connecting cylinder; a limiting boss is provided inside the connecting cylinder, and the limiting boss abuts against the side of the valve stem end away from the flow channel opening.

[0015] According to one embodiment of the present invention, the sealing gasket has a recessed portion on the side facing the coil body, and the mounting plate has a protrusion corresponding to the recessed portion.

[0016] According to one embodiment of the present invention, the outer periphery of the sealing gasket is provided with an annular sealing portion.

[0017] According to one embodiment of the present invention, the sealing gasket is made of silicone.

[0018] According to one embodiment of the present invention, the valve body is provided with an air inlet channel and an air outlet channel, and the air inlet channel and the air outlet channel are connected through the flow port.

[0019] This utility model also provides a steam oven, including the above-mentioned electromagnetic valve sealing structure.

[0020] Compared with the prior art, the advantages and beneficial effects of the embodiments of this utility model are as follows:

[0021] The solenoid valve sealing structure and steam oven provided in this embodiment of the utility model can effectively ensure the sealing performance while preventing high-temperature steam from directly contacting the coil and causing the solenoid valve to overheat. At the same time, due to the use of a single sealing gasket, the overall sealing performance and sealing effect are improved compared to the existing double sealing ring structure. Attached Figure Description

[0022] The accompanying drawings, which form part of this specification, are used to provide a further understanding of this utility model. The illustrative embodiments of this utility model and their descriptions are used to explain this utility model and do not constitute an undue limitation of this utility model. Wherein:

[0023] Figure 1 A schematic diagram of the solenoid valve sealing structure provided in this embodiment of the utility model;

[0024] Figure 2This is an assembly diagram of the solenoid valve sealing structure provided in an embodiment of the present utility model;

[0025] Figure 3 A schematic diagram of the sealing gasket structure of the solenoid valve sealing structure provided in this embodiment of the utility model;

[0026] Figure 4 A cross-sectional schematic diagram of the solenoid valve sealing structure provided in an embodiment of this utility model;

[0027] Figure 5 for Figure 4 Enlarged view of point A in the middle;

[0028] Figure 6 A schematic diagram of the structure of the steam oven provided in this embodiment of the utility model.

[0029] Explanation of reference numerals in the attached figures:

[0030] 1. Valve body; 11. Flow port; 12. Inlet channel; 13. Outlet channel; 2. Coil body; 21. Valve stem; 22. Guide chamber; 23. Return spring; 3. Sealing gasket; 31. Sealing step; 32. Insertion hole; 33. Recess; 34. Sealing part; 4. Mounting plate; 41. Plug; 42. Connecting cylinder; 43. Limiting boss; 44. Protrusion; 5. Steam pipeline; 6. Cavity. Detailed Implementation

[0031] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. Various examples are provided by way of explanation of the present invention and not by way of limitation. In fact, those skilled in the art will recognize that modifications and variations can be made to the present invention without departing from the scope or spirit of the invention. For example, a feature shown or described as part of one embodiment may be used in another embodiment to produce yet another embodiment. Therefore, it is desirable that the present invention encompass such modifications and variations that fall within the scope of the appended claims and their equivalents.

[0032] In the description of this utility model, the terms "first," "second," and similar words do not indicate any order, quantity, or importance, but are only used to distinguish different components. Words such as "comprising" or "including" mean that the element or object preceding the word covers the element or object listed after the word and its equivalents, without excluding other elements or objects. Terms such as "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," and "bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and do not require that this utility model be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on this utility model. The terms "connected," "linked," and "set up" used in this utility model should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; a direct connection or an indirect connection through intermediate components; a wired connection, a radio connection, or a wireless communication signal connection. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0033] like Figure 1 , Figure 2 , Figure 4 , Figure 5 As shown, this embodiment of the invention provides a solenoid valve sealing structure, including a valve body 1 and a coil body 2. The valve body 1 has a flow channel 11 facing the coil body 2, which connects an air inlet channel 12 and an air outlet channel 13 within the valve body 1. By controlling the opening and closing of the flow channel 11, the solenoid valve can be opened and closed. The coil body 2 has a valve stem 21 extending towards the flow channel 11, and a sealing gasket 3 is provided on the valve stem 21. The outer periphery of the sealing gasket 3 is sandwiched between the valve body 1 and the coil body 2, and the middle portion of the sealing gasket 3 can be releasably sealed to close the flow channel 11.

[0034] The solenoid valve sealing structure provided in this embodiment of the invention controls the valve stem 21 to move axially, thereby deforming the middle part of the sealing gasket 3 to open or close the flow channel 11, thus controlling the on / off state of the entire solenoid valve. Simultaneously, the outer edge of the sealing gasket 3 is sandwiched between the valve body 1 and the coil body 2, and the middle part of the sealing gasket 3 has no passage for steam, preventing steam from entering the coil body 2 and affecting the coil temperature rise. Furthermore, the sealing gasket 3 completely covers the flow channel 11, eliminating concerns about size discrepancies between the valve body sealing surface and the sealing gasket 3, which could lead to poor sealing of the valve body 1. The solenoid valve sealing structure provided in this embodiment of the invention effectively ensures sealing performance while preventing direct contact between high-temperature steam and the coil, thus preventing excessive temperature rise in the solenoid valve. Moreover, the use of a single sealing gasket improves the overall sealing integrity and sealing effect compared to existing double-sealing ring structures.

[0035] In order to achieve deformation and sealing effects, in one embodiment of this utility model, the sealing gasket 3 is made of silicone material.

[0036] To improve the sealing effect of the flow channel 11, such as Figure 3 As shown, in one embodiment of this utility model, the sealing gasket 3 protrudes from the center toward the flow channel 11, forming a sealing step 31. This sealing step 31 can more effectively seal the flow channel 11.

[0037] like Figure 2 , Figure 4 , Figure 5 As shown, in one embodiment of this utility model, a mounting plate 4 is fixedly provided on the side of the sealing gasket 3 away from the flow channel 11, and the middle part of the mounting plate 4 is connected to the end of the valve stem 21. The mounting plate 4 facilitates the connection between the sealing gasket 3 and the valve stem 21. Simultaneously, the presence of the mounting plate 4 allows the area where the middle part of the sealing gasket 3 connects to the mounting plate 4 to deform simultaneously, improving the sealing effect on the flow channel 11.

[0038] To facilitate the installation of the sealing gasket 3, such as Figure 2 , Figure 5 As shown, in one embodiment of this utility model, the sealing gasket 3 and the mounting plate 4 are detachably connected. For example, the mounting plate 4 is provided with a plug 41, and the sealing gasket 3 is provided with a socket 32 ​​corresponding to the plug 41. Preferably, the plug 41 and the socket 32 ​​are interference-fitted to prevent steam from escaping from the socket 32 ​​toward the coil body 2.

[0039] To facilitate the displacement of the mounting plate 4 by the valve stem 21, such as Figure 2 , Figure 4 , Figure 5As shown, in one embodiment of this utility model, the mounting plate 4 has a connecting cylinder 42 protruding towards the coil body 2 in the middle. The end of the valve stem 21 is T-shaped and located inside the connecting cylinder 42. The connecting cylinder 42 has a limiting boss 43, which can abut against the side of the valve stem 21 away from the flow channel 11 to prevent it from sliding out of the connecting cylinder 42. By applying force to the limiting boss 43, the valve stem 21 can cause the middle part of the sealing gasket 3 to deform away from the flow channel 11.

[0040] To facilitate the positioning of the mounting plate 4 and the sealing gasket 3, such as Figure 2 As shown, in one embodiment of this utility model, the sealing gasket 3 has a recessed portion 33 on the side facing the coil body 2, and the mounting plate 4 has a protrusion 44 corresponding to the recessed portion 33. The protrusion 44 of the mounting plate 4 is inserted into the recessed portion 33 of the sealing gasket 3, which facilitates quick assembly of the two.

[0041] To improve the sealing effect between the valve body 1 and the coil body 2, such as Figure 2 , Figure 3 , Figure 5 As shown, in one embodiment of this utility model, the outer periphery of the sealing gasket 3 is provided with an annular sealing portion 34, which is located between the valve body 1 and the coil body 2, thereby improving the sealing effect and preventing steam and external gas from entering the coil body 2. For ease of installation, the sealing surface of the valve body 1 and / or the coil body 2 is provided with an annular groove corresponding to the sealing portion 34.

[0042] like Figure 2 , Figure 4 , Figure 5As shown, in one embodiment of this utility model, the coil body 2 is further provided with a guide chamber 22, and the valve stem 21 is disposed in the guide chamber 22 to guide the movement of the valve stem 21. Further, the outer edge of the sealing gasket 3 is disposed between the guide chamber 22 and the valve body 1. Further, a return spring 23 is provided between the valve stem 21 and the guide chamber 22. During assembly, the valve stem 21, the mounting plate 4, and the sealing gasket 3 are assembled into a sealing assembly. The guide chamber 22 is inserted into the coil body 2, the return spring 23 is inserted into the guide chamber 22, and then the sealing assembly is installed into the guide chamber 22. Finally, the valve body 1 and the coil body 2 are fixed together with screws. After the solenoid valve is fully assembled, the outer edge of the sealing gasket 3 is clamped between the guide chamber 22 and the valve body 1, forming a sealing surface for the gap between the valve body 1 and the coil body 2. After the solenoid valve is fully assembled, the coil is not energized. The return spring 23 placed between the valve stem 21 and the guide chamber 22 is designed with a certain amount of compression. This allows the return spring 23 to exert a force on the valve stem 21, causing the sealing gasket 3 to be tightly pressed against the flow port 11 of the valve body 1. The air inlet channel 12 and the air outlet channel 13 of the valve body 1 are not connected. After the coil is energized, the valve stem 21 moves towards the end of the return spring 23 through the guide chamber 22. Although the outer edge of the sealing gasket 3 is clamped between the guide chamber 22 and the valve body 1 and will not move, the silicone sealing gasket 3 is soft. The middle part of the sealing gasket 3 will elastically deform with the valve stem 21 and move upward, making the air inlet channel 12 and the air outlet channel 13 of the valve body 1 connected.

[0043] like Figure 6 As shown, this utility model also provides a steam oven, including the aforementioned solenoid valve sealing structure. Specifically, the steam oven has two steam pipes 5, which lead to different cavities 6 respectively. Both steam pipes 5 are equipped with the aforementioned solenoid valve sealing structure, and by controlling the on / off state of each solenoid valve, steam can be supplied to different cavities 6.

[0044] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A sealing structure for a solenoid valve, characterized in that, Includes a valve body (1) and a coil body (2); The valve body (1) is provided with a flow channel (11) facing the coil body (2); The coil body (2) is provided with a valve stem (21) extending toward the flow port (11), and a sealing gasket (3) is provided on the valve stem (21); the outer periphery of the sealing gasket (3) is sandwiched between the valve body (1) and the coil body (2), and the middle part of the sealing gasket (3) can be released to close the flow port (11).

2. The solenoid valve sealing structure according to claim 1, characterized in that, The sealing gasket (3) protrudes in the middle toward the flow channel opening (11) to form a sealing step (31).

3. The solenoid valve sealing structure according to claim 2, characterized in that, The sealing gasket (3) is fixedly provided with a mounting plate (4) on the side away from the flow channel (11), and the middle part of the mounting plate (4) is connected to the end of the valve stem (21).

4. The solenoid valve sealing structure according to claim 3, characterized in that, The mounting plate (4) is provided with a plug (41), and the sealing gasket (3) is provided with a socket (32) corresponding to the plug (41).

5. The solenoid valve sealing structure according to claim 3, characterized in that, The mounting plate (4) has a connecting cylinder (42) protruding towards the coil body (2) in the middle; the end of the valve stem (21) is T-shaped and located inside the connecting cylinder (42); the connecting cylinder (42) has a limiting boss (43) inside, and the limiting boss (43) abuts against the side of the end of the valve stem (21) away from the flow channel (11).

6. The solenoid valve sealing structure according to claim 3, characterized in that, The sealing gasket (3) has a recess (33) on the side facing the coil body (2), and the mounting plate (4) has a protrusion (44) corresponding to the recess (33).

7. The solenoid valve sealing structure according to any one of claims 1 to 6, characterized in that, The outer periphery of the sealing gasket (3) is provided with an annular sealing portion (34).

8. The solenoid valve sealing structure according to any one of claims 1 to 6, characterized in that, The sealing gasket (3) is made of silicone.

9. The solenoid valve sealing structure according to any one of claims 1 to 6, characterized in that, The valve body (1) is provided with an air inlet channel (12) and an air outlet channel (13), and the air inlet channel (12) and the air outlet channel (13) are connected through the flow port (11).

10. A steam oven, characterized in that, Includes the solenoid valve sealing structure according to any one of claims 1 to 9.

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