A solenoid valve and a steamer thereof

Abstract

A solenoid valve, characterized in that it includes a valve body assembly and a magnet assembly, wherein the valve body assembly is located inside the magnet assembly; the valve body assembly includes a movable valve core, the magnet assembly includes a magnetic core, the magnetic core is located on the upper part of the magnet assembly and on the upper part of the valve core or on the upper part of the outer side of the valve core, a coil is arranged on the outer side of the magnetic core, the magnetic core can drive the valve core to move by magnetic force, and the magnetic core and the valve core are not in direct contact. This solution solves the problems of the existing solenoid valves being complex in structure, difficult to clean, and low in reliability, and mainly solves the problem that the magnetic core and valve core of the existing solenoid valve are magnetized after being used for a long time, resulting in the separation and failure of the magnetic core and valve core, and solves the problem that the existing steamer can only drain the outer pot but not the inner pot due to the limitation of the power-on structure of the solenoid valve, and solves the problems of the existing steamer being complex in structure, unsafe to use, and difficult for users to clean.

Description

Technical Field

[0001] The invention relates to the technical field of kitchen appliances, and in particular to a solenoid valve and a steamer thereof. Background Art

[0002] The existing solenoid valve has a complex structure, is difficult to clean, and has low reliability. This is mainly because the existing solenoid valve sets the magnetic core and the valve core in the same vertical position, so that the magnetic core and the valve core are in direct contact and interaction with each other. After a long period of use, the valve core and the magnetic core have a certain magnetic force after being magnetized, resulting in the magnetic core and the valve core cannot be separated in time, and even separation failure occurs, resulting in the solenoid valve being unable to open and close normally, and unable to open and close the drain outlet normally for drainage.

[0003] The existing steamer mainly installs the solenoid valve on the outer pot to drain the outer pot, and low-sugar rice is made by draining the outer pot; the outer pot of the steamer is difficult to clean due to the complex structure of the solenoid valve, which is inconvenient for users to use; the existing steamer sets a plug-in power-on structure at the position where the solenoid valve is installed on the outer pot to realize the power supply setting of the solenoid valve, which makes the structure of the outer pot complicated, and the plug-in power-on structure is easy to get wet. When using it, the user needs to ensure that there is no water on the plug-in, otherwise it is easy to cause a short circuit or leakage, which is unsafe to use.

[0004] Due to the limitations of the structure of the solenoid valve and the power-on structure of the solenoid valve connector, the existing steamer can only install the solenoid valve on the outer pot, so that only the outer pot can be drained but the inner pot cannot be drained. This requires the steamer to be equipped with an independent water tank to hold the water discharged from the outer pot, resulting in a complex overall structure of the steamer, which is inconvenient for users to use. Summary of the invention

[0005] The present invention aims to solve one of the technical problems in the above-mentioned related art at least to a certain extent.

[0006] To this end, the purpose of the present invention is to provide a solenoid valve and a steamer thereof, mainly to provide a solenoid valve with a simple structure, which can be used to be installed on the inner pot of the steamer to drain the inner pot, solve the problems of the existing solenoid valves being complex in structure, difficult to clean and having low reliability, mainly to solve the problem that the magnetic core and the valve core of the existing solenoid valve are magnetized after being used for a long time, resulting in the separation and failure of the magnetic core and the valve core, and to solve the problem that the existing steamer can only drain the outer pot but cannot drain the inner pot due to the limitation of the power-on structure of the solenoid valve, and solve the problems that the existing steamer is complex in structure, unsafe to use and difficult for users to clean.

[0007] An embodiment of the present invention provides a solenoid valve and a steamer thereof, a solenoid valve, characterized in that: it includes a valve body assembly and a magnet assembly, the valve body assembly is located at the inner side of the magnet assembly; the valve body assembly includes a movable valve core, the magnet assembly includes a magnetic core, the magnetic core is located at the upper part of the magnet assembly and at the upper part of the outer side of the valve core, a coil is arranged on the outer side of the magnetic core, the magnetic core can drive the valve core to move by magnetic force and the magnetic core is not in direct contact with the valve core.

[0008] In the aforementioned solenoid valve, the distance from the outer surface of the valve core to the inner surface of the magnetic core is L, 0mm<L≤10mm, and the distance from the bottom surface of the magnetic core to the upper surface of the valve core is H, 1mm≤H≤10mm.

[0009] In the aforementioned solenoid valve, the valve core and the magnetic core are both configured as an annular structure, and 0.5mm≤L≤2mm.

[0010] In the aforementioned solenoid valve, the coil is formed by winding a wire, and the number of turns of the wire wound at the lower part of the coil is greater than or equal to the number of turns of the wire wound at the upper part of the coil.

[0011] In the aforementioned solenoid valve, a plurality of first through holes are arranged on the upper surface of the valve body assembly, and a first limiting portion is also arranged on the upper portion of the valve body assembly.

[0012] In the aforementioned solenoid valve, the valve body assembly further includes a shaft rod, a valve core is sleeved on the shaft rod and the valve core can move on the shaft rod, and a sealing member for sealing is installed at the bottom of the valve core.

[0013] In the aforementioned solenoid valve, the valve body assembly further includes a filter element, a plurality of second through holes are arranged on the surface of the filter element, and a second limiting portion is arranged.

[0014] In the aforementioned solenoid valve, a plurality of retractable second guide pillars are installed on the end surface of the magnet assembly, or a plurality of raised contacts are provided on the end surface of the magnet assembly.

[0015] A cooking device comprises the solenoid valve according to any one of claims 1 to 8, and also comprises an inner pot, wherein the solenoid valve is mounted on the inner pot.

[0016] In the aforementioned steamer, a drain port is arranged on the inner pot or on the electromagnetic valve, and the magnetic core can drive the valve core to move by magnetic force to open and close the drain port.

[0017] The aforementioned steamer also includes an outer pot, the inner pot is located inside the outer pot, one end of the coil is electrically connected to the power module through the inner pot, and the other end of the coil is electrically connected to the power module through the outer pot.

[0018] In the aforementioned steamer, the inner pot is electrically connected to the power module via a first guide post installed on the pot cover; the other end of the coil is electrically connected to the outer pot via the outer shell or the second guide post, and the outer pot is electrically connected to the power module via a third guide post installed in the pot body.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] This solution sets a magnetic core and a valve core, and limits the magnetic core to be located at the upper part of the magnet assembly and at the upper part of the outer side of the valve core, and a coil is set on the outer side of the magnetic core. The magnetic core can drive the valve core to move by magnetic force, and the magnetic core and the valve core are not in direct contact, so that the magnetic core can drive the valve core to move without directly contacting the valve core, and the structural setting is simpler, which solves the problem of the magnetic core and the valve core of the existing solenoid valve being magnetized after a long period of use, resulting in the failure of the magnetic core and the valve core to separate, and improves the reliability of the solenoid valve in use.

[0021] This solution sets a distance L between the outer surface of the valve core and the inner surface of the magnetic core, and limits the number of turns of the wire at the bottom of the coil to be greater than or equal to the number of turns of the wire at the top of the coil, so that the magnetic force generated by the magnetic core and the valve core can be relatively concentrated after the coil is energized, ensuring that the magnetic core does not contact the valve core and can stably drive the valve core to move through magnetic force, with a simple structure and higher reliability.

[0022] The solenoid valve of the present invention can be installed on the inner pot of a steamer, and one end of the coil is electrically connected to the power module through the inner pot, and the other end of the coil is electrically connected to the power module through the outer pot. The coil is set between the outer pot and the inner pot and the outer pot and the inner pot are used to realize the power supply circuit of the coil, which solves the problem that the existing solenoid valve can only be installed on the outer pot and the solenoid valve can be energized by the connector.

[0023] The steamer of the present invention is provided with an outer pot and an inner pot, wherein the inner pot is arranged inside the outer pot, a solenoid valve is installed on the inner pot, and a drain port is provided on the inner pot or on the solenoid valve. The drain port is opened and closed by the solenoid valve, thereby enabling water communication between the inner pot and the outer pot. The water in the inner pot can be discharged into the outer pot or the water in the outer pot can enter the inner pot. The steamer can be used to make low-sugar food, and the food and water can be separated during the steaming process, and is particularly convenient for making low-sugar rice. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a front perspective view of the solenoid valve of this solution;

[0025] Figure 2 It is a reverse stereoscopic view of the solenoid valve of this scheme;

[0026] Figure 3 This is an exploded schematic diagram of the solenoid valve of this solution;

[0027] Figure 4 is a schematic diagram of the valve body assembly of this solution;

[0028] Figure 5 It is a three-dimensional schematic diagram of the valve body assembly of this solution;

[0029] Figure 6 A cross-sectional schematic diagram of a solenoid valve of the present solution having a second guide column;

[0030] Figure 7 A cross-sectional schematic diagram of the solenoid valve of this solution with contacts set;

[0031] Figure 8 This is a state diagram of the solenoid valve of this solution;

[0032] Fig. 9 It is a schematic diagram of the movement state of the valve body assembly of the solenoid valve of this solution;

[0033] Fig.10 This is a three-dimensional schematic diagram of the reverse side of the inner pot of this solution;

[0034] Fig.11 This is a front perspective schematic diagram of the inner pot of this solution;

[0035] Fig.12 A schematic diagram of a drainage channel provided for the inner pot of the present invention;

[0036] Fig.13 This is a schematic diagram of the drainage channel of this solution being located on the solenoid valve;

[0037] Fig.14 This is a schematic diagram of the inner pot being located inside the outer pot of the present invention;

[0038] Fig.15 This is a schematic diagram of the explosion of the inner pot and the outer pot of this solution;

[0039] Fig.16 A block diagram of the electrical connection of this solution;

[0040] Fig.17 This is a schematic diagram of the connection of the coil power supply of this solution and is electrically connected through the second conductive column;

[0041] Fig.18 This is a connection diagram for powering the coil in this solution and is electrically connected through contacts;

[0042] Fig.19 It is a three-dimensional schematic diagram of a filter screen arranged in the digester of the present invention;

[0043] Fig. 20 A three-dimensional schematic diagram of a digester of the present invention;

[0044] Fig.21 It is a cross-sectional view of the overall structure of the digester of this scheme;

[0045] Fig. 22 This is a schematic diagram of the inner pot of this solution without draining;

[0046] Fig.23 This is a schematic diagram of the solution in which the water in the inner pot is discharged into the outer pot and the water and food in the inner pot are separated.

[0047] Figure markings: 1-magnet assembly, 101-magnetic core, 102-second guide column, 103-contact, 2-valve body assembly, 201-valve core, 202-first through hole, 203-first limiting part, 204-shaft, 205-seal, 206-filter, 2061-second through hole, 2062-second limiting part, 3-coil, 4-outer pot, 5-inner pot, 501-drain outlet, 6-pot cover, 601-first guide column, 7-pot body, 701-third guide column, 8-power module, 9-isolating part, 10-drainage channel, 11-fourth guide column, 12-filter. DETAILED DESCRIPTION

[0048] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific embodiments.

[0049] Embodiment: A solenoid valve and a steamer thereof according to the present invention, such as Figures 1 to 23 As shown in the structure, the present scheme relates to a solenoid valve and a cooking device thereof. The solenoid valve is provided with a magnetic core 101 and a valve core 201. The magnetic core 101 does not directly contact the valve core 201 to drive the valve core 201 to move to realize the internal action of the solenoid valve. When the solenoid valve is used on the cooking device, the drain port 501 on the inner pot 5 of the cooking device is opened and closed. The movement of the valve core 201 can realize the opening and closing effect of the drain port 501. The power module 8 is used to supply power to the solenoid valve, so that the coil 3 inside the solenoid valve can generate a certain magnetic force when energized to enable the valve core 201 and the magnetic core 101. The magnetic core 101 can drive the valve core 201 to move through the magnetic force. The movement of the valve core 201 is mainly realized by the magnetic force of mutual attraction between the magnetic core 101 and the valve core 201.

[0050] A solenoid valve comprises a valve body assembly 2 and a magnet assembly 1, wherein the valve body assembly 2 is located at the inner side of the magnet assembly 1; the valve body assembly 2 comprises a movable valve core 201, and the magnet assembly 1 comprises a magnetic core 101, wherein the magnetic core 101 is located at the upper part of the magnet assembly 1 and at the upper part of the outer side of the valve core 201, thereby ensuring that the magnetic core 101 can drive the valve core 201 to move upward and the magnetic core 101 will not directly contact the valve core 201, and the valve core 201 can pass through the inner position of the magnetic core 101; the magnetic core 101 is located at the upper part of the magnet assembly 1, thereby facilitating the magnetic core 101 to drive the valve core 201 to move upward, and the magnetic core 101 is located at the upper part of the outer side of the valve core 201, thereby ensuring that the valve core 201 and the magnetic core 101 will not directly contact each other, mainly because the valve core 201 will not contact the magnetic core 101 after moving upward, and the magnetic core 101 and the valve core 201 will not contact each other during the entire movement of the valve core 201.

[0051] In this solution, a coil 3 is arranged on the outside of the magnetic core 101. The magnetic core 101 can drive the valve core 201 to move by magnetic force, and the magnetic core 101 and the valve core 201 are not in direct contact. The coil 3 is formed by winding a wire. The function of the coil 3 is that when the coil 3 is energized, the current inside the coil 3 passes through, so that the magnetic core 101 and the valve core 201 located in the inner ring of the coil 3 can generate a certain magnetic force. When the coil 3 is energized, the valve core 201 and the magnetic core 101 have magnetic force, which mainly has a magnetic force of mutual attraction. The magnetic core 101 drives the valve core 201 to move upward by magnetic force; when the coil 3 is not energized, the magnetic force of the valve core 201 and the magnetic core 101 disappears, and the valve core 201 moves downward under the action of gravity. The whole process realizes the magnetic force supply of the coil 3 to the valve core 201 and the magnetic force; whether the coil 3 is energized mainly means that the coil 3 needs to be connected to the power module 8, and the power supply to the solenoid valve is realized through the power module 8.

[0052] The distance from the outer surface of the valve core 201 to the inner surface of the magnetic core 101 of the present solution is L, 0mm<L≤10mm, the valve core 201 can pass through the inside of the magnetic core 101, the inside of the magnetic core 101 is set as an air-avoiding structure relative to the valve core 201, and the magnetic core 101 can drive the valve core 201 to move upward by magnetic force; the larger the distance L is, the larger the overall winding number and winding diameter of the coil 3 will be, and the relatively high cost; when the distance is set to 0mm<L≤10mm, the magnetic force requirement of the magnetic core 101 on the valve core 201 can be met, and the cost is relatively low, and the magnetic core 101 can drive the valve core 201 to move upward stably.

[0053] Preferably, the valve core 201 and the magnetic core 101 are both configured as annular structures, the valve core 201 is configured as a cylindrical annular structure, an axial hole sleeved on the shaft 204 is configured in the middle of the valve core 201, the valve core 201 can move on the shaft 204, the magnetic core 101 is configured as a cylindrical annular structure, a through hole for avoiding the valve core 201 is configured in the middle of the magnetic core 101, so that the valve core 201 can pass through the middle position of the magnetic core 101, which is convenient for the installation and placement of the valve body assembly 2; and when 0.5mm≤L≤2mm, the mutual magnetic force of attraction between the valve core 201 and the magnetic core 101 is relatively large, and at this time, the mutual magnetic force of the magnetic core 101 on the side and upper end surface of the valve core 201 is mainly concentrated; more preferably, when L is 0.5mm, the magnetic force of the magnetic core 101 on the valve core 201 is relatively large, which can satisfy the magnetic core 101 to drive the valve core 201 to move upward stably.

[0054] The vertical distance between the valve core 201 and the magnetic core 101 of the present embodiment is H, which is mainly the distance between the bottom surface of the magnetic core 101 and the upper surface of the valve core 201. When 1mm≤H≤10mm and H is preferably 3mm≤H≤6mm, the magnetic force of mutual attraction between the valve core 201 and the magnetic core 101 is higher and more stable, and the magnetic core 101 can stably drive the valve core 201 to move upward; when H is 5mm, the magnetic force of mutual attraction between the magnetic core 101 and the valve core 201 is the highest and most stable, which is beneficial for the magnetic core 101 to drive the valve core 201 to move, and is beneficial for the valve core 201 to open and close the drain port 501. At this time, the drainage effect of the drain port 501 is better; the distance H mainly affects the magnitude of the magnetic force of mutual attraction between the magnetic core 101 and the upper end surface of the valve core 201.

[0055] The internal coil 3 of the solenoid valve of this scheme is formed by winding a wire, and the wire is an aluminum wire or a copper wire. The coil 3 is formed by winding a wire and has a certain height. The coil 3 is divided into two parts, the upper part of the coil 3 and the lower part of the coil 3, according to the center position in the height direction. The magnetic core 101 is located in the inner ring area of ​​the upper part of the coil 3, and the valve core 201 is located in the inner ring area of ​​the lower part of the coil 3. One end of the coil 3 extends upward to form the input end of the circuit connection of the solenoid valve, and the other end of the coil 3 extends downward to form the output end of the circuit connection of the solenoid valve. After one end of the coil 3 of the solenoid valve and the other end of the coil 3 are respectively connected to the power module 8, the coil 3 can be energized, that is, the power module 8 can supply power to the solenoid valve. When the coil 3 is energized, the internal current passes through the magnetic core 101 and the valve core 201, so that A certain magnetic force is provided, and the magnetic force is mainly the magnetic force of mutual attraction between the magnetic core 101 and the valve core 201. The magnetic core 101 can drive the valve core 201 to move upward from the initial position through the magnetic force. When the coil 3 is not energized, the valve core 201 moves downward to the initial position under the action of gravity. The whole process realizes the movement process of the valve core 201 inside the solenoid valve. The valve core 201 and the magnetic core 101 are not in direct contact. Even if the valve core 201 moves upward to the upper position, the magnetic core 101 will not contact the valve core 201. The valve core 201 can be maintained in the upper position only by relying on the magnetic force, which solves the problem that the magnetic core 101 and the valve core 201 of the existing solenoid valve are magnetized after a long period of use, resulting in the failure of the magnetic core 101 and the valve core 201 to separate.

[0056] The specific setting of the coil 3 in this scheme is that the number of turns of the wire at the bottom of the coil 3 is greater than or equal to the number of turns of the wire at the top of the coil 3, wherein when the number of turns of the wire at the bottom of the coil 3 is equal to the number of turns of the wire at the top of the coil 3, after the coil 3 is energized, a relatively balanced magnetic force can be maintained between the valve core 201 and the magnetic core 101, and the magnetic forces on the magnetic core 101 and the valve core 201 are evenly distributed. At this time, the magnetic core 101 can drive the valve core 201 to move upward through the magnetic force, and the movement speed is relatively slow; when the number of turns of the wire at the bottom of the coil 3 is greater than the number of turns of the wire at the top of the coil 3 After the coil 3 is energized, the magnetic force between the valve core 201 and the magnetic core 101 is relatively concentrated, the magnetic force of the magnetic core 101 is mainly concentrated on the lower end face and the lower side face of the magnetic core 101, and the magnetic force of the valve core 201 is mainly concentrated on the upper end face and the upper side face of the valve core 201. The magnetic force of mutual attraction between the valve core 201 and the magnetic core 101 is large and concentrated in the middle of the distance position where they attract each other. At this time, the magnetic core 101 can drive the valve core 201 to move upward by magnetic force, and the movement speed is faster and the reliability is higher. Preferably, the present scheme sets the number of turns of the wire at the lower part of the coil 3 to be greater than the number of turns of the wire at the upper part of the coil 3.

[0057] The structure of the valve body assembly 2 is that a plurality of first through holes 202 are arranged on the upper surface of the valve body assembly 2, and the first through holes 202 are used for passing water to filter debris to a certain extent, and water enters downward into the position of the valve core 201 through the first through holes 202; and a first limiting portion 203 is also arranged on the upper portion of the valve body assembly 2, and the first limiting portion 203 serves to limit the installation position of the valve body assembly 2, and supports the limited installation position of the valve body assembly 2.

[0058] Among them, the structure of the valve body assembly 2 is that the valve body assembly 2 also includes a shaft rod 204, the valve core 201 is sleeved on the shaft rod 204 and the valve core 201 can move on the shaft rod 204, the valve core 201 is sleeved on the shaft rod 204, and a third limiting portion is set on the shaft rod 204 to limit the upward movement position of the valve core 201. After the valve core 201 moves upward for a certain distance, it stays under the limit of the third limiting portion and does not move; the valve core 201 can move on the shaft rod 204, and the initial position of the valve core 201 is that the valve core 201 is located at the lower position of the shaft rod 204; a sealing member 205 for sealing is installed at the bottom of the valve core 201. When the solenoid valve is installed on the steamer, the sealing member 205 on the valve core 201 can achieve a sealing effect on the drain port 501 on the inner pot 5 of the steamer to prevent the drain port 501 from leaking or seeping.

[0059] Among them, the valve body assembly 2 also includes a filter element 206, and a plurality of second through holes 2061 are arranged on the surface of the filter element 206. The second through holes 2061 can play a certain filtering role to prevent debris from entering the valve core 201 position, and play a filtering role at the same time as the first through hole 202. Water can pass through the first through hole 202 and the second through hole 2061, and have a double filtering effect on the debris, reducing the risk of the valve core 201 being blocked, and having higher reliability. A second limiting portion 2062 is provided, and the second limiting portion 2062 can play a limiting role to support the limiting installation position of the valve body assembly 2.

[0060] A plurality of retractable second guide pillars 102 are installed on the end face of the magnet assembly 1 of the present solution, and the second guide pillars 102 are mainly installed on the end face of the outer shell of the solenoid valve, and the other end of the coil 3 can be welded to the second guide pillar 102 to realize the electrical connection between the other end of the coil 3 and the second guide pillar 102; or a plurality of raised contacts 103 are arranged on the end face of the magnet assembly 1, and the contacts 103 are mainly arranged on the outer shell of the solenoid valve, and the contacts 103 are part of the outer shell, and the other end of the coil 3 is directly welded to the outer shell or crimped to the outer shell to realize the electrical connection between the other end of the coil 3 and the outer shell.

[0061] The steamer structure of the present scheme is a steamer, comprising the solenoid valve described in any one of claims 1 to 8, the solenoid valve is installed on the steamer of the present scheme, the steamer of the present scheme also includes an inner pot 5, the solenoid valve is installed on the inner pot 5, the inner pot 5 is drained by the solenoid valve, the steamer of the present scheme also includes an outer pot 4, the inner pot 5 is located in the outer pot 4, the outer pot 4 is mainly used to hold water, and is used to hold the water discharged from the inner pot 5, when the food and water in the inner pot 5 are separated for drainage, the water in the inner pot 5 is discharged into the outer pot 4.

[0062] The main structure of the outer pot 4 is that the outer pot 4 is arranged in the pot body 7, and a heating element is arranged in the pot body 7 to heat the outer pot 4 and the inner pot 5. The heating element can directly heat the outer pot 4 and then use the steam in the outer pot 4 to heat the inner pot 5. A heating element can also be arranged to directly heat the inner pot 5, such as an electromagnetic disk to heat the inner pot 5, and the electromagnetic heating effect of the inner pot 5 is achieved by the electromagnetic disk. It only needs to be able to heat the inner pot 5.

[0063] The main structure of the inner pot 5 is that a drain port 501 is arranged on the inner pot 5, and the drain port 501 is mainly arranged on the bottom surface of the inner pot 5. The magnetic core 101 can open and close the drain port 501 by driving the valve core 201 to move by magnetic force. The main structure is that a drain channel 10 is arranged on the inner pot 5, wherein the drain channel 10 can also be set as a part of the solenoid valve, and is not limited to directly setting the drain channel 10 on the inner pot 5. It is only necessary to realize that the valve body assembly 2 is located in the drain channel 10, and the end of the drain channel 10 is arranged with a drain port 501, and the magnetic core 101 can open and close the drain port 501 by driving the valve core 201 to move by magnetic force; the drain port 501 is arranged on the inner pot 5 or on the solenoid valve, and the drain channel 10 can be independently used as a part of the solenoid valve, and can also be set as an independent part installed on the inner pot 5. The drain port 501 is arranged at the end of the drain channel 10 to realize the setting of the drain port 501; the magnetic core 101 is installed in the upper part of the drain channel 10, see Fig.12 The magnetic core 101 can also be installed on the outer side of the drainage channel 10. It is necessary to ensure that the magnetic core 101 is located at the upper part of the magnet assembly 1 and at the upper part of the outer side of the valve core 201. The coil 3 is wound on the outer side of the magnetic core 101. The coil 3 wraps around the magnetic core 101 and the valve core 201 to ensure that the magnetic core 101 and the valve core 201 can generate a certain magnetic force after the coil 3 is energized.

[0064] Among them, after the solenoid valve is installed on the inner pot 5 and the valve body assembly 2 is installed in the drainage channel 10, the bottom end surface of the first limiting portion 203 contacts and fits the bottom surface of the inner pot 5, thereby realizing limiting support for the valve body assembly 2 and preventing the valve body assembly 2 from moving downward; the bottom end surface of the second limiting portion 2062 on the filter element 206 contacts and fits on the upper end surface of the magnetic core 101, which plays a supporting and limiting role for the valve body assembly 2 as a whole and prevents the valve body assembly 2 from moving downward, and the second limiting portion 2062 also plays a circumferential limiting role for the valve body assembly 2 in the drainage channel 10, keeping the axis of the shaft 204 on the valve body assembly 2 and the center hole of the drainage port 501 on the same vertical axis, preventing the problem of displacement of the valve body assembly 2 during installation, ensuring the reliable opening and closing of the drainage port 501 by the valve core 201, and the sealing effect of the valve core 201 on the drainage port 501 is better.

[0065] After the solenoid valve is installed on the inner pot 5, one end of the coil 3 is electrically connected to the inner pot 5. One end of the coil 3 can be crimped and contacted to fit the bottom surface of the inner pot 5, or one end of the coil 3 can be welded to the fourth guide pillar 11. When the solenoid valve is installed on the inner pot 5, the fourth guide pillar 11 directly supports and fits the bottom surface of the inner pot 5, so that one end of the coil 3 is electrically connected to the inner pot 5; preferably, the fourth guide pillar 11 can be set as a retractable structure, mainly by setting an elastic member at the position where the fourth guide pillar 11 is installed, so that the fourth guide pillar 11 can be retracted and deformed, ensuring that one end of the coil 3 is electrically connected to the inner pot 5 through the fourth guide pillar 11.

[0066] The circuit structure of the solenoid valve of the steamer of this scheme is mainly used to supply power to the coil 3 to ensure that the coil 3 is electrically connected to the power module 8. Only when the coil 3 is energized can the magnetic core 101 and the valve core 201 generate a certain magnetic force, and the magnetic core 101 can drive the valve core 201 to move through the magnetic force; the power module 8 is electrically connected to the circuit board, and the circuit board realizes the on and off control of the power supply of the power module 8. When it is necessary to power the solenoid valve, the control board controls the power module 8 to energize the solenoid valve. At this time, the solenoid valve can realize that the magnetic core 101 drives the valve core 201 to move to achieve the effect of opening and closing the drain outlet 501.

[0067] The steamer of the present invention utilizes the inner pot 5 and the outer pot 4 to realize the circuit structure of energizing the coil 3, mainly that one end of the coil 3 is electrically connected to the power module 8 through the inner pot 5, and the other end of the coil 3 is electrically connected to the power module 8 through the outer pot 4; wherein the electrical connection structure of the inner pot 5 and the power module 8 is that the inner pot 5 is electrically connected to the power module 8 through the first guide post 601 installed on the pot cover 6, and the pot cover 6 is located at the upper part of the pot body 7 and can be rotated to open and close the upper position of the outer pot 4 and the inner pot 5. When the pot cover 6 is rotated downward to cover the inner pot 5, the first guide post 601 installed on the pot cover 6 is in contact with the inner pot 5 to realize electrical connection, so that the current of the power module 8 can enter the inner pot 5 through the first guide post 601 and enter one end of the coil 3; the first guide post 601 is directly connected to the power module 8 with a wire to realize the electrical connection between the first guide post 601 and the power module 8.

[0068] The other end of the coil 3 of the present solution can be electrically connected to the power module 8 through the outer shell, mainly because the other end of the coil 3 can be directly welded or crimped on the outer shell to achieve electrical connection between the other end of the coil 3 and the outer shell and conduct electricity. When the inner pot 5 is placed in the outer pot 4, the outer shell contacts and fits the outer pot 4. Since the outer pot 4 is electrically connected to the power module 8, the other end of the coil 3 is electrically connected to the power module 8 through the outer shell.

[0069] After the solenoid valve is installed on the inner pot 5, the other end of the coil 3 is electrically connected to the outer pot 4, wherein the structure in which the other end of the coil 3 is electrically connected to the outer pot 4 is that the other end of the coil 3 is electrically connected to the outer pot 4 through the second guide post 102, and the outer pot 4 is electrically connected to the power module 8 through the third guide post 701 installed in the pot body 7, and a plurality of retractable second guide posts 102 are installed on the end surface of the magnet assembly 1, and the second guide posts 102 are mainly installed on the end surface of the outer shell of the solenoid valve, and the other end of the coil 3 can be welded on the second guide post 102 to realize the connection between the other end of the coil 3 and the second guide post 102 The second guide post 102 can contact and fit the outer pot 4 downward, mainly contact and fit the inner bottom surface of the outer pot 4, so that the other end of the coil 3 is electrically connected to the outer pot 4 through the second guide post 102, and the current on the coil 3 can enter the second guide post 102 and then enter the outer pot 4, so that the other end of the coil 3 is electrically connected to the outer pot 4; when the inner pot 5 is installed in the outer pot 4, the second guide post 102 can contact and fit the inner bottom surface of the outer pot 4, so as to achieve the effect that the coil 3 can be electrically connected to the outer pot 4 through the second guide post 102, thereby realizing the power supply circuit structure for the coil 3.

[0070] Alternatively, the structure in which the other end of the coil 3 is electrically connected to the outer pot 4 is that a plurality of raised contacts 103 are arranged on the end face of the magnet assembly 1, and the contacts 103 are mainly arranged on the outer shell of the solenoid valve, and the contacts 103 are part of the outer shell. The other end of the coil 3 is directly welded to the outer shell or crimped to the outer shell to achieve electrical connection between the other end of the coil 3 and the outer shell, and the contacts 103 on the outer shell can contact and fit the inner bottom surface of the outer pot 4 downward, so as to achieve electrical connection between the outer shell of the solenoid valve and the outer pot 4, that is, to achieve electrical connection between the other end of the coil 3 and the outer pot 4; when the inner pot 5 is installed in the outer pot 4, the contacts 103 can contact and fit the inner bottom surface of the outer pot 4, so as to achieve the effect that the coil 3 can be electrically connected to the outer pot 4 through the contacts 103, thereby realizing the power supply circuit structure for the coil 3.

[0071] The electrical connection structure between the outer pot 4 and the power module 8 is that the outer pot 4 is electrically connected to the power module 8 through a third guide post 701 installed in the pot body 7. The third guide post 701 contacts and fits the bottom surface of the outer pot 4, so that the current at the other end of the coil 3 can enter the power module 8 through the third guide post 701 when entering the outer pot 4. The third guide post 701 is directly connected to the power module 8 with a wire to realize the electrical connection between the third guide post 701 and the power module 8, thereby realizing power supply to the coil 3 and forming a complete power supply circuit structure, so that the power module 8, the first guide post 601, the inner pot 5, the coil 3, the second guide post 102, the outer pot 4, and the third guide post 701 can be electrically connected to each other, and a loop structure for powering the coil 3 is formed based on the above-mentioned electrical connection structure.

[0072] Preferably, the third guide column 701 can be an existing temperature sensor, and the probe on the temperature sensor is used to realize the electrical connection between the outer pot 4 and the power module 8. The temperature sensor itself is electrically connected to the power module 8 to detect the bottom temperature of the outer pot 4. The temperature sensor can be directly used to realize the electrical connection between the outer pot 4 and the power module 8.

[0073] With respect to the power-on structure of the present scheme, an insulating member 9 is provided on the side of the inner pot 5. The function of the insulating member 9 is to prevent the outer pot 4 and the inner pot 5 from contacting each other at the top, which causes power to be supplied between the inner pot 5 and the outer pot 4, and to ensure that the power supply between the inner pot 5 and the outer pot 4 can only be realized through the coil 3 to realize the power-on structure between the two. After the inner pot 5 is powered on, the current of the inner pot 5 enters one end of the coil 3 and then enters the outer pot 4 through the other end of the coil 3, ensuring that the coil 3 can be powered normally.

[0074] The present solution may further provide a boss extending from the side in the inner pot 5, on which a detachable filter 12 may be installed. The filter 12 is used to hold food materials, such as rice, so that the rice on the filter 12 can be steam cooked, which can effectively prevent the rice from entering the solenoid valve and causing blockage, and is convenient for users to clean.

[0075] The components of the power supply circuit mentioned in the above scheme are all configured as conductive structures to enable the passage of current in the circuit; the inner pot 5, the outer pot 4, the first guide post 601, the second guide post 102, the third guide post 701, the fourth guide post 11, and the shell of the solenoid valve are all configured as conductive structures, such as being configured to be made of aluminum, iron, or copper, and in order to improve the reliability of electrical connection, the number of the first guide post 601, the second guide post 102, the third guide post 701, and the fourth guide post 11 are all configured to be multiple; the current of the power module 8 enters the first guide post 601 through the wire, enters the inner pot 5 through the first guide post 601, then enters one end of the coil 3 through the inner pot 5, enters the second guide post 102 or the contact 103 through the other end of the coil 3, then enters the outer pot 4 through the second guide post 102 or the contact 103, and finally passes through the third guide post 701 so that the current finally returns to the power module 8, forming a complete power supply circuit for the coil 3.

[0076] A silicone seal is arranged between the solenoid valve and the bottom of the inner pot 5 of the present invention. When the solenoid valve is installed on the inner pot 5, it is crimped on the silicone seal. The coil 3 is located in the outer shell. The outer shell of the solenoid valve is directly screwed to the bottom surface of the inner pot 5. Nuts are welded on the bottom surface of the inner pot 5. The solenoid valve is installed and fixed by screws, and the coil 3 inside the solenoid valve is sealed and installed.

[0077] The steamer of the present invention makes low-sugar food, such as low-sugar rice. In the process of making low-sugar rice, water is contained in the outer pot 4, and the inner pot 5 is used to contain water and rice. The height of the water level in the outer pot 4 is lower than the height of the water level in the inner pot 5. The heating element heats the outer pot 4. The water in the outer pot 4 generates high-temperature steam under the heating action of the heating element. The steam can directly perform high-temperature steam heating on the inner pot 5, or a vent hole can be provided on the upper part of the inner pot 5 so that part of the high-temperature steam can enter the inner pot 5 from the outer pot 4, so that the high-temperature steam can steam-heat the water and rice in the inner pot 5. After heating for a period of time, the water and rice are fully boiled in the inner pot 5. At this time, the power module 8 realizes the coil through the inner pot 5 and the outer pot 4. 3 is powered, a power supply path is formed among the power module 8, the inner pot 5, the coil 3, and the outer pot 4. When the coil 3 is energized, the magnetic core 101 and the valve core 201 can generate a certain magnetic force. At this time, the magnetic core 101 can drive the valve core 201 to move upward by the magnetic force, so that the drain port 501 is opened, so that the rice soup in the inner pot 5 enters the outer pot 4 through the drain port 501, and the water and rice in the inner pot 5 are separated. The rice soup takes away the starch and sugar in the rice during the discharge process, so that the starch and sugar content in the rice in the inner pot 5 is reduced. After the water and rice in the inner pot 5 are separated, the heating element continues to heat so that the rice in the inner pot 5 is steamed under high-temperature steam, that is, the production of low-sugar rice is achieved.

[0078] Low-sugar foods, such as low-sugar rice, can be eaten by diabetics or obese people because of their low starch and sugar content. They can reduce the intake of starch and sugar and increase the feeling of fullness at the same time. The taste of low-sugar rice is better than that of ordinary rice, and it can also help prevent diabetes when consumed by normal people.

[0079] Working principle: The solenoid valve of this scheme comprises a coil 3, a magnetic core 101 and a valve core 201. When the coil 3 is energized, the magnetic core 101 drives the valve core 201 to move by magnetic force, thereby realizing the movement of the valve core 201 of the solenoid valve. By setting the specific position of the magnetic core 101, the magnetic core 101 and the valve core 201 will not contact each other during the process of the magnetic core 101 driving the valve core 201 to move, thereby ensuring the reliable separation of the valve core 201 and the magnetic core 101 when the coil 3 is not energized, thereby solving the problem that the valve core 201 of the existing solenoid valve is easy to separate and fail, and by limiting the magnetic core 101, the valve core 201 of the solenoid valve can be moved. 1 and the valve core 201, as well as the limitation on the number of turns of the coil 3, ensure that a relatively high and stable magnetic force is formed between the magnetic core 101 and the valve core 201, thereby ensuring the stability and reliability of the movement of the valve core 201 of the solenoid valve; the solenoid valve of this scheme is installed on the steamer, and can be installed on the inner pot 5 of the steamer to realize the opening and closing effect of the drain port 501 on the inner pot 5, and is electrically connected to the power module 8 through the inner pot 5 and the outer pot 4, so as to realize the power supply to the coil 3 inside the solenoid valve, and the solenoid valve does not need to be provided with other power supply structures.

[0080] Those skilled in the art will appreciate that the above-mentioned embodiments are specific examples for implementing the present invention, and in actual applications, various changes may be made in form and detail without departing from the spirit and scope of the present invention, all of which are within the protection scope of the present invention.

Claims

1. A solenoid valve, characterized in that: It includes a valve body assembly and a magnet assembly, wherein the valve body assembly is located inside the magnet assembly; the valve body assembly includes a movable valve core, and the magnet assembly includes a magnetic core, which is located at the upper part of the magnet assembly and at the upper part of the outer side of the valve core; The valve core and the magnetic core are both set to an annular structure, and the distance from the outer surface of the valve core to the inner surface of the magnetic core is set to L and is set to 0.5mm≤L≤2mm, and the distance from the bottom surface of the magnetic core to the upper surface of the valve core is set to H and is set to 3mm≤H≤6mm, so that the mutual magnetic force between the valve core and the magnetic core is larger, thereby forming a structure in which the mutual magnetic force of the magnetic core on the side and upper end surface of the valve core is relatively concentrated; A coil is arranged on the outside of the magnetic core. The magnetic core can drive the valve core to move by magnetic force and the magnetic core does not directly contact the valve core. When the valve core moves upward to the upper position, the magnetic core is configured to have a structure that does not contact the valve core, so that the magnetic core only relies on magnetic force to keep the valve core in the upper position. The coil is formed by winding a wire, and the number of turns of the wire at the bottom of the coil is set to be greater than the number of turns of the wire at the top of the coil, so as to form a structure in which the magnetic force between the valve core and the magnetic core is relatively concentrated, and a structure in which the magnetic force of the magnetic core is concentrated on the lower end face and the lower side face of the magnetic core, and a structure in which the magnetic force of the valve core is concentrated on the upper end face and the upper side face of the valve core.

2. A solenoid valve according to claim 1, characterized in that: Set H to 5mm.

3. The solenoid valve according to claim 1, characterized in that: When the magnetic core drives the valve core to move upward by magnetic force, a structure is provided in which the magnetic force between the valve core and the magnetic core is concentrated in the middle of the distance position where the valve core and the magnetic core attract each other.

4. The solenoid valve according to claim 1, characterized in that: The coil is divided into two parts, an upper coil part and a lower coil part, based on the center position in the height direction. The magnetic core is located in the inner ring area of ​​the upper coil part, and the valve core is located in the inner ring area of ​​the lower coil part.

5. The solenoid valve according to claim 1, characterized in that: A plurality of first through holes are arranged on the upper surface of the valve body assembly, and a first limiting portion is also arranged on the upper portion of the valve body assembly.

6. A solenoid valve according to claim 5, characterized in that: The valve body assembly also includes a shaft rod, a valve core is sleeved on the shaft rod and the valve core can move on the shaft rod, and a sealing member for sealing is installed at the bottom of the valve core.

7. A solenoid valve according to claim 6, characterized in that: The valve body assembly also includes a filter element, a plurality of second through holes and a second limiting portion are arranged on the surface of the filter element.

8. A solenoid valve according to claim 7, characterized in that: A plurality of retractable second guide pillars are installed on the end surface of the magnet assembly, or a plurality of raised contact points are arranged on the end surface of the magnet assembly.

9. A digester, characterized in that: It comprises the solenoid valve according to any one of claims 1 to 8, and also comprises an inner pot, on which the solenoid valve is mounted.

10. A digester according to claim 9, characterized in that: A drain port is arranged on the inner pot or on the electromagnetic valve, and the magnetic core can drive the valve core to move through magnetic force to open and close the drain port.

11. A digester according to claim 10, characterized in that: It also includes an outer pot, the inner pot is located inside the outer pot, one end of the coil is electrically connected to the power module through the inner pot, and the other end of the coil is electrically connected to the power module through the outer pot.

12. A digester according to claim 11, characterized in that: The inner pot is electrically connected to the power module through a first guide post installed on the pot cover; the other end of the coil is electrically connected to the outer pot through the outer shell or the second guide post, and the outer pot is electrically connected to the power module through a third guide post installed in the pot body.

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