Steam box

Abstract

The utility model relates to the field of steam boxes, and provides a steam box which comprises a base body, a water tank, a box cover, a magnetic attraction body, a permanent magnet and an electromagnetic assembly, a containing cavity is limited in the base body, the water tank is arranged in the containing cavity, the box cover is movably arranged on the base body and corresponds to the water tank in position, one of the magnetic attraction body and the permanent magnet is fixed to the box cover, and the other one of the magnetic attraction body and the permanent magnet is fixed to the electromagnetic assembly. The permanent magnet is used for attracting the magnetic attraction body to close the box cover, and the electromagnetic assembly is used for being powered on to generate a magnetic field to enable the permanent magnet to release the magnetic attraction body. The magnetic attraction body can be attracted by the permanent magnet to keep the box cover closed, power consumption is avoided, and energy is saved. And the permanent magnet can release the magnetic attraction body only by instantly electrifying the electromagnetic assembly, so that the energy consumption is low. The box cover is automatically unlocked by electrifying the electromagnetic assembly, so that the box cover can be opened, operation of children can be prevented, the risk that the children open the box cover to make contact with the water tank is reduced, and the safety of the steam box is improved.

Description

Technical Field

[0001] The utility model relates to the field of steamers, in particular to a steamer with an automatic cover opening. Background Art

[0002] In the existing kitchen steamer, some are integrated with the function of an oven to become a steam oven. Usually, a box cover is arranged on the surface of the steamer, a water tank is arranged inside the steamer, and water is added into the water tank by opening the box cover.

[0003] There are generally the following designs:

[0004] 1. By hiding the water tank behind the cover, the risk of the water tank slipping and being touched by children is reduced or avoided, so as to improve the safety of the steamer; however, the hiding method is often purely mechanical (such as door suction type, push-type mechanism), although the operation is simple, children can still operate it, and the safety is poor.

[0005] 2. Using a motor to drive the box cover to open and close can prevent children from operating it, but the drive structure is complex, the power required is large, and the energy consumption is high. Utility Model Content

[0006] The technical problem to be solved by the utility model is to provide a steamer in order to overcome the defects of poor safety or high energy consumption of steamers in the prior art.

[0007] The utility model solves the above technical problems through the following technical solutions:

[0008] A steamer, comprising:

[0009] A base body, wherein a receiving cavity is defined in the base body;

[0010] A water tank, disposed in the accommodating cavity;

[0011] A box cover, movably arranged on the base body and corresponding to the position of the water tank, for closing the containing cavity;

[0012] A magnetic body and a permanent magnet, one of which is fixed on the box cover and the other is fixed on the base, and the permanent magnet is used to absorb the magnetic body to close the box cover;

[0013] The electromagnetic component is used for generating a magnetic field by energizing to make the permanent magnet release the magnetic attractor.

[0014] In this scenario, you can run it as follows:

[0015] The box cover is usually kept closed, and the permanent magnet is used to attract the magnetic body to lock the box cover, so that the box cover is kept closed. The permanent magnet is used to attract the magnetic body to keep the box cover closed, which does not consume power and saves energy.

[0016] When the lid needs to be opened, the electromagnetic component is energized to generate a magnetic field, so that the permanent magnet can release the magnetic attraction, unlock the lid, and then the lid can be opened. The permanent magnet only needs to be energized for a moment to release the magnetic attraction, which consumes less energy.

[0017] Permanent magnets and electromagnetic components are used to lock and unlock the box cover to keep the box cover closed or open, which consumes less energy. The box cover can be automatically unlocked by energizing the electromagnetic component so that the box cover can be opened, which can prevent children from operating it, reduce the risk of children opening the box cover and contacting the water tank, and improve the safety of the steamer.

[0018] Preferably, the steamer also includes a heat source, and the heat source is used for cooking food.

[0019] In this solution, the steamer includes a heat source and has the function of an oven. Steaming and baking are combined to form a steam oven. On the one hand, some parts for steaming and baking can be used together, which can save costs; on the other hand, the structure can be made compact.

[0020] Preferably, the electromagnetic component includes a magnetizer and a coil, the permanent magnet absorbs the magnetic body through the magnetizer, and the coil is used to generate a magnetic field to make the magnetizer release the magnetic body;

[0021] And / or, the electromagnetic component includes a valve body and a coil, the permanent magnet and the coil are fixed in the valve body, the material of the valve body is a magnetic conductive material, the permanent magnet absorbs the magnetic body through the valve body, and the coil is used to generate a magnetic field to make the valve body release the magnetic body.

[0022] In this solution, the permanent magnet transmits magnetic force through the magnetizer and / or the valve body, and indirectly absorbs or releases the magnetic body through the magnetizer and / or the valve body to achieve locking or unlocking of the box cover. On the one hand, it is convenient to set the size of the magnetizer and / or the valve body to be larger to ensure that the suction force on the magnetic body is large enough to lock the box cover, thereby setting the size of the permanent magnet to be smaller to reduce costs; on the other hand, the position requirements of the permanent magnet can be reduced to improve the convenience of installing the permanent magnet.

[0023] The valve body is used to install the permanent magnet and the coil, so as to seal the permanent magnet and the coil, prevent dust and moisture, and improve the reliability of the permanent magnet and the coil. The permanent magnet is fixed in the valve body, and the permanent magnet is fixed on the box cover or the base through the valve body.

[0024] Preferably, the magnetic gap between the magnetic conductor and / or the valve body and the permanent magnet is zero;

[0025] And / or, the valve body is fixed on the base, and the magnetic body is fixed on the box cover.

[0026] In this solution, the magnetic gap is set to zero. On the one hand, the magnetic conductivity of the magnet and / or the valve body can be improved; on the other hand, it can prevent the magnet and / or the valve body from generating excessive magnetic force to attract the magnetic body and make it difficult to open the box cover when the coil is energized.

[0027] The magnetic structure is relatively simple. The valve body is fixed on the base, and the magnetic body is fixed on the box cover. On the one hand, it is convenient to make the structure arranged on the box cover simple, small in size and light in weight; on the other hand, it is convenient to set the valve body, permanent magnet and coil on the base and keep them immobile relative to the base, avoiding damage or relative position change caused by following the movement of the box cover, thereby improving the reliability of the valve body, permanent magnet and coil.

[0028] Preferably, the magnetic conductor is fixed in the valve body.

[0029] In the present solution, the valve body is configured so that, on the one hand, the valve body is used to install the magnetic conductor, and on the other hand, the magnetic conductor can be sealed to prevent dust and moisture, thereby improving the reliability of the magnetic conductor.

[0030] Preferably, the valve body comprises a bottom wall and a side wall connected to form a concave cavity, and when the box cover is closed, the bottom wall is located on a side of the valve body away from the magnetic body;

[0031] The valve body absorbs the magnetic body through the side wall, and the magnetic conductor, the permanent magnet and the bottom wall are in contact with each other in sequence;

[0032] And / or, the coil is located between the side wall and the magnetic conductor.

[0033] In this solution, the permanent magnet is installed by abutting the permanent magnet between the magnetizer and the bottom wall. On the one hand, it is simple and reliable; on the other hand, the magnetic gap between the permanent magnet, the magnetizer and the valve body can be made zero.

[0034] The coil is located between the side wall and the magnetizer, so that the distance between the coil and the magnetizer and the side wall is relatively small. When the coil is energized, the valve body and the magnetizer have a good release effect on the magnetic attractor.

[0035] Preferably, the surfaces where the magnetizer and the permanent magnet abut against each other are both planes, and the surfaces where the permanent magnet and the bottom wall abut against each other are both planes.

[0036] In this solution, the plane can be easily processed, and the magnetic gap between the permanent magnet and the magnetic attraction body can be made zero through the plane abutment, and the magnetic gap between the permanent magnet and the valve body can be made zero.

[0037] Preferably, the box cover is rotatably arranged on the base;

[0038] And / or, the box cover and the accommodating cavity are arranged at the lower part of the base.

[0039] In this solution, the box cover adopts a flip-top design, which has a simple structure and is easy to use.

[0040] The box cover and the accommodating cavity are arranged at the lower part of the base, that is, corresponding to the position of the lower half of the base, which is convenient for arranging the water tank at the lower part of the steaming cavity of the steamer. On the one hand, it is convenient to reduce the resistance of the steam generated by heating the water in the water tank to flow to the steaming cavity; on the other hand, it is convenient to increase the length and width of the water tank to make the volume larger and occupy a smaller height space.

[0041] Preferably, the lower end or the horizontal end of the box cover is rotatably connected to the base through an external elastic hinge, so that the box cover remains open;

[0042] Alternatively, the lower end of the box cover is rotatably connected to the base, and the center of gravity of the box cover is located on a side away from the base, so that the box cover remains open.

[0043] In this solution, the lower end or the horizontal end of the box cover is rotatably connected to the base, and the box cover is in the form of flipping open downward or flipping open to the side, which is convenient to use.

[0044] The box cover and the base are rotatably connected through an external elastic hinge, or through the center of gravity setting of the box cover. On the one hand, it is convenient to automatically open the box cover after the coil is energized and the permanent magnet releases the magnetic attraction. The magnetic attraction of the box cover is released and unlocked, which is convenient to use. There is no need to set a handle to open and close the box cover, which makes the surface of the box cover smooth, further preventing children from operating it, and further improving safety. On the other hand, after the box cover is opened, the box cover can be kept in an open state to facilitate adding water to the water tank.

[0045] Preferably, the lower end of the box cover is rotatably connected to the base, and when the box cover is opened, it is parallel to the horizontal direction, or obliquely upward and forms an angle greater than zero and less than or equal to 5° with the horizontal direction.

[0046] In this solution, when the tank cover is opened, it is tilted upward and forms an angle greater than zero and less than or equal to 5° with the horizontal direction. This can not only not affect the filling of water into the water tank, but also form an oblique upward support for the water tank to prevent the water tank from sliding, thereby improving safety.

[0047] The positive and progressive effects of the utility model are:

[0048] The box cover can be kept closed by adsorbing the magnetic body with a permanent magnet, which has no power consumption and is energy-saving.

[0049] When the box lid needs to be opened, the electromagnetic component is energized to generate a magnetic field, so that the permanent magnet can release the magnetic attraction, unlock the box lid, and thus the box lid can be opened; the electromagnetic component only needs to be energized momentarily to make the permanent magnet release the magnetic attraction, which consumes less energy.

[0050] The box cover can be automatically unlocked by energizing the electromagnetic component, so that the box cover can be opened, which can prevent children from operating it, reduce the risk of children opening the box cover and contacting the water tank, and improve the safety of the steamer. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] Figure 1 It is a partial structural schematic diagram of a steamer according to an embodiment of the utility model;

[0052] Figure 2 It is a partial structural schematic diagram of a steamer according to an embodiment of the utility model;

[0053] Figure 3 This is a magnetic force diagram of the electromagnetic component of one embodiment of the utility model when no power is supplied;

[0054] Figure 4 This is a magnetic force diagram of the electromagnetic component of one embodiment of the utility model when power is supplied.

[0055] Description of reference numerals:

[0056] Steamer;

[0057] Base body 1, accommodating cavity 11, shell wall 12;

[0058] Water tank 2;

[0059] Box cover 3;

[0060] Magnetic body 4

[0061] Permanent magnet 5

[0062] Electromagnet 6, coil 61, lead wire 611, magnetic conductor 62, valve body 63, bottom wall 631, side wall 632, mounting box 64, fixing ear 65, screw 66;

[0063] External elastic hinge 7. DETAILED DESCRIPTION

[0064] The preferred embodiments are given below and the present invention is described more clearly and completely in conjunction with the accompanying drawings.

[0065] It should be noted that: In order to facilitate the understanding of the relevant structure, Figure 1 The approximate positions of the external elastic hinge and the magnetic body are shown in the figure. In fact, the outer surface of the box cover is flat, and the external elastic hinge and the magnetic body cannot be seen from the outside.

[0066] The electromagnetic component in the following embodiments is an electromagnet. The magnetic force of the electromagnet and the magnetic force of the coil refer to the magnetic force generated by the electromagnetic component when the coil is energized. The magnetic force refers to the magnetic force on the magnetic body.

[0067] This embodiment provides a steamer, Figure 1-Figure 4 A schematic diagram provided for this embodiment.

[0068] like Figure 1 , Figure 2 As shown, the steamer includes:

[0069] A base body 1, wherein a receiving cavity 11 is defined in the base body 1;

[0070] A water tank 2 is arranged in the accommodating chamber 11;

[0071] A box cover 3 is movably arranged on the base 1 and corresponds to the position of the water tank 2. The box cover 3 is used to close the opening of the accommodating chamber 11;

[0072] A magnetic body 4 is fixed on the box cover 3;

[0073] A permanent magnet 5 is fixed on the base 1 and is used to attract the magnetic body 4 to close the box cover 3;

[0074] The electromagnet is used to generate a magnetic field when power is supplied to make the permanent magnet 5 release the magnetic attractor 4 .

[0075] Optionally, the steamer in this embodiment further includes a heat source, and the heat source is used to cook and bake food. The steamer includes a heat source and has the function of an oven. Steaming and baking are combined to form a steam oven. On the one hand, some parts for steaming and baking can be used together, which can save costs; on the other hand, the structure can be made compact. In other embodiments, the steamer can only have the function of steaming, or can have the functions of steaming and baking at the same time. Regarding how the steamer can achieve steaming and baking, specific reference can be made to the prior art.

[0076] Optional, such as Figure 2 As shown, in this embodiment, the electromagnet includes a coil 61, a magnet 62 and a valve body 63, the valve body 63 is fixed on the base, the permanent magnet 5, the coil 61, and the magnet 62 are all fixed in the valve body 63 to achieve fixed connection with the base 1, the coil 61 is electrically connected to the power supply outside the valve body 63 through the lead 611, and the permanent magnet 5, the coil 61, and the magnetic body 4 are installed through the valve body 63, which can also play a role of sealing, dust and moisture resistance, and improve the reliability of the permanent magnet 5, the coil 61, and the magnetic body 4. Specifically, the electromagnet 6 also includes a mounting box 64 and a fixing ear 65, the base 1 includes a shell wall 12, the mounting box 64 is fixed on the shell wall 12, and the fixing ear 65 is sleeved on the valve body 63 and fixed to the mounting box 64 by screws 66 to fix the valve body 63 on the shell wall 12. By marking the positive and negative poles on the lead wire 611 , it is ensured that when the coil 61 is energized, the magnetic force generated by the electromagnet 6 and the magnetic force generated by the permanent magnet 5 are in opposite directions.

[0077] In other embodiments, either the permanent magnet 5 or the magnetic body 4 may be arranged on the box cover 3, and the other may be arranged on the base 1; when a valve body 63 is provided and the permanent magnet 5 is fixed on the valve body 63, correspondingly, one of the valve body 63 and the magnetic body 4 is arranged on the box cover 3, and the other is arranged on the base 1; when the valve body 63 is fixed on the base 1 and the magnetic body 4 is fixed on the box cover 3, on the one hand, it is convenient to make the structure arranged on the box cover 3 simple, small in size and light in weight; on the other hand, it is convenient to arrange the valve body 63, the permanent magnet 5, and the coil 61 on the base 1 and keep them immovable relative to the base 1, so as to avoid damage or relative position change caused by following the movement of the box cover 3, and improve the reliability of the operation of the valve body 63, the permanent magnet 5, and the coil 61. In other embodiments, the permanent magnet 5 may be installed on the valve body 63; it may be installed without passing through the valve body 63, such as directly installed on the shell wall 12 of the base 1 or directly installed on the box cover 3. In other embodiments, the permanent magnet 5 and the electromagnet 6 may be installed together on the box cover 3 or on the base 1, and the corresponding magnetic body 4 may be installed on the base 1 or on the box cover 3; the magnetic body 4 and the electromagnet 6 may be installed together on the box cover 3 or on the base 1, and the corresponding permanent magnet 5 may be installed on the base 1 or on the box cover 3. In other embodiments, the installation of each component of the permanent magnet 5 and the electromagnet 6 in the steamer can be realized as long as the permanent magnet 5 can absorb the magnetic body 4 to keep the box cover 3 closed when the coil 61 is not energized, and the magnetic force of the permanent magnet 5 and the electromagnet 6 can be offset when the coil 61 is energized so that the box cover 3 can be opened.

[0078] The materials of the magnetizer 62 and the valve body 63 are both magnetic conductive materials, which are used to transmit the magnetic force of the permanent magnet 5 and the coil 61. Figure 3 The solid line segment with an arrow in the figure illustrates the situation in which the magnet 62 and the valve body 63 transmit the magnetic force of the permanent magnet 5 when the box cover 3 is in the closed position. The permanent magnet 5 attracts the magnetic body 4 through the magnet 62 and the valve body 63, so that the box cover 3 is magnetically locked and closed.

[0079] Figure 4 The solid line segment with an arrow indicates the situation in which the magnetizer 62 and the valve body 63 transmit the magnetic force of the permanent magnet 5 when the box cover 3 is in the closed position. The dotted line segment with an arrow indicates the magnetic force generated by the electromagnet 6 when the coil 61 is energized. The magnetic force of the permanent magnet 5 transmitted by the magnetizer 62 and the valve body 63, and the magnetic force of the electromagnet 6 cancel each other out, so that the valve body 63 and the magnetizer 62 release the magnetic body 4, so that the magnetic attraction of the box cover 3 is released and opened.

[0080] In other embodiments, only the magnetizer 62 or the valve body 63 may be provided to transmit the magnetic force of the permanent magnet 5; the magnetizer 62 and the valve body 63 may be provided to transmit the magnetic force of the permanent magnet 5 at the same time; the magnetizer 62 and the valve body 63 may not be provided to transmit the magnetic force of the permanent magnet 5, and the magnetic body 4 may be directly adsorbed by the permanent magnet 5. The permanent magnet 5 transmits magnetic force through the magnetizer 62 and / or the valve body 63, and indirectly adsorbs or releases the magnetic body 4 through the magnetizer 62 and / or the valve body 63, so as to achieve locking or unlocking of the box cover 3. On the one hand, it is convenient to set the size of the magnetizer 62 and / or the valve body 63 to be larger to ensure that the attraction force on the magnetic body 4 is large enough to lock the box cover 3, thereby setting the size of the permanent magnet 5 to be smaller to reduce the cost; on the other hand, the position requirement for the permanent magnet 5 can be reduced to improve the convenience of installing the permanent magnet 5. Optionally, in this embodiment, the magnetic gap between the magnet 62 and the permanent magnet 5 is zero, and the magnetic gap between the valve body 63 and the permanent magnet 5 is zero. Setting the magnetic gap to zero can, on the one hand, improve the magnetic conductivity of the magnet 62 and the valve body 63; on the other hand, it is convenient to improve the control accuracy and avoid the magnet 62 and the valve body 63 generating excessive magnetic force to adsorb the magnetic body 4 when the coil 61 is energized, making it inconvenient to open the box cover 3. In other embodiments, the magnetic gap between the magnet 62 and the permanent magnet 5 can be set to zero or non-zero, and at the same time, the magnetic gap between the valve body 63 and the permanent magnet 5 can be set to zero or non-zero. In other embodiments, when the magnetic gap between the magnet 62 and / or the valve body 63 and the permanent magnet 5 is zero, either the valve body 63 or the magnetic body 4 can be installed on the base 1, and the other can be installed on the box cover 3.

[0081] Specifically, Figure 2 As shown, the valve body 63 includes a bottom wall 631 and a side wall 632 which are connected to form a concave cavity. When the box cover 3 is closed, the bottom wall 631 is located on a side of the valve body 63 away from the magnetic body 4.

[0082] Optional, such as Figure 2 As shown, this embodiment includes the design point 1: the coil 61 is located between the side wall 632 and the magnet 62. The coil 61 is located between the side wall 632 and the magnet 62, so that the distance between the coil 61 and the magnet 62 and the side wall 632 is small. When the coil 61 is energized, the valve body 63 and the magnet 62 have a good release effect on the magnetic body 4. In other embodiments, the relative position relationship of the magnet 62, the permanent magnet 5, the coil 61, and the valve body 63 can be flexibly adjusted.

[0083] Optional, such as Figure 2As shown, this embodiment includes the second design point: the valve body 63 absorbs the magnetic body 4 through the side wall 632, and the magnet 62, the permanent magnet 5, and the bottom wall 631 are abutted in sequence. By abutting the permanent magnet 5 between the magnet 62 and the bottom wall 631, the installation of the permanent magnet 5 is achieved. On the one hand, it is simple and reliable; on the other hand, the magnetic gap between the permanent magnet 5 and the magnet 62 and the valve body 63 can be made zero. In other embodiments, the permanent magnet 5 can be installed by abutting the permanent magnet 5 with other parts to limit the position; the permanent magnet 5 can be installed by providing a mounting portion on the base 1, and providing a groove or other limiting portion on the mounting portion to limit the position of the permanent magnet 5; the permanent magnet 5 can be installed in other existing ways.

[0084] In other embodiments, two or either one of the design points one and two may be included simultaneously.

[0085] Optional, such as Figure 2 As shown, the surfaces where the magnetizer 62 and the permanent magnet 5 abut are both planes, and the surfaces where the permanent magnet 5 and the bottom wall 631 abut are both planes. On the one hand, the planes are easy to process; on the other hand, the planes abut against each other with high precision, making it easy to make the magnetic gap between the permanent magnet 5 and the magnetizer 62 zero, and making the magnetic gap between the permanent magnet 5 and the valve body 63 zero.

[0086] Optional, such as Figure 1 As shown, this embodiment includes the third design point: the box cover 3 and the accommodating cavity 11 are arranged at the lower part of the base 1. The box cover 3 and the accommodating cavity 11 are arranged at the lower part of the base 1, that is, at the position corresponding to the lower half of the base 1, so that the water tank 2 is conveniently arranged at the lower part of the steaming cavity of the steamer. On the one hand, it is convenient to reduce the resistance of the steam generated by the water in the water tank 2 flowing to the steaming cavity when it is heated; on the other hand, it is convenient to increase the length and width of the water tank 2 so that the volume is larger and the height space occupied is smaller.

[0087] Optionally, in this embodiment, the fourth key point of design is included: the box cover 3 is rotatably arranged on the base 1. The box cover 3 adopts a flip-top design, which is simple in structure and easy to use.

[0088] In other embodiments, two or any one of the three and four design points may be included simultaneously.

[0089] Optionally, in this embodiment, the box cover 3 and the base 1 are rotatably connected by an external elastic hinge 7, so that the box cover 3 remains open. In other embodiments, when the lower end of the box cover 3 is rotatably connected to the base 1, the box cover 3 can be kept open by the external elastic hinge 7, or by setting the center of gravity of the box cover 3 on the side away from the base 1. In other embodiments, the end of the box cover in the horizontal direction can be rotatably connected to the base, so that the box cover is in the form of flipping to the side to open; specifically, the rotatable connection can be achieved by an external elastic hinge or its form. In other embodiments, the connection mode of the box cover relative to the base can be rotation, sliding, etc., and the connection part of the box cover and the base can be flexibly adjusted according to specific needs.

[0090] Through the external elastic hinge 7, or through the center of gravity of the box cover 3, on the one hand, it is convenient to energize the coil 61, the permanent magnet 5 releases the magnetic body 4, and the magnetic attraction of the box cover 3 is released to achieve unlocking. The box cover 3 automatically opens under the action of the external elastic hinge 7 or gravity, which is convenient to use, and there is no need to set a handle to open and close the box cover 3, which is convenient for making the surface of the box cover 3 flat, which can further prevent children from operating it, further improve safety, and also facilitate the manufacture and cleaning of the box cover 3; on the other hand, after the box cover 3 is opened, the box cover 3 is kept in an open state to facilitate adding water to the water tank 2 or performing equipment maintenance. The specific structure of the external elastic hinge 7 can refer to the prior art.

[0091] Optionally, in this embodiment, the box cover 3 is parallel to the horizontal direction when opened, and the box cover 3 can be used as a temporary loading platform. In other embodiments, the lower end of the box cover 3 can be rotatably connected to the base 1, and the box cover 3 is in an oblique upward state when opened, and forms an angle greater than zero and less than or equal to 5° with the horizontal direction, which can not affect the water tank 2 while forming an oblique upward support to prevent the water tank 2 from sliding, thereby improving safety. In other embodiments, the angle between the box cover 3 and the horizontal direction when it is opened can be flexibly adjusted according to needs.

[0092] The material of the magnetic body 4 can be iron, cobalt, nickel and alloys that can be adsorbed by the permanent magnet 5 and the magnetizer 62; the materials of the magnetizer 62 and the valve body 63 can be silicon steel, iron metal or alloys with iron as the main component and other magnetic materials. Specifically, in this embodiment, the magnetic body 4 is an iron sheet, the material of the magnetizer 62 is an iron core, and the material of the valve body 63 is an iron metal that can conduct magnetism. Generally, the better the magnetic conductivity of the material, the higher the cost. The electromagnet can be set to conduct magnetism mainly through the magnetizer 62. The magnetizer 62 uses a material with a higher magnetic permeability than the valve body 63, which can ensure the good magnetic conductivity of the electromagnet while making the cost of the electromagnet lower. In other embodiments, regardless of the relative position of the magnetizer and the valve body, the materials of the magnetizer 62 and the valve body 63 can be the same or different, and the magnetic permeability of the materials used can be the same or different. Considering the moisture-proof and rust-proof of the magnetic body 4, it can be treated by painting or electroplating to prevent oxidation and rust. In this embodiment, the material of the shell wall 12 is plastic, which is not magnetic. In other embodiments, the material of the shell wall 12 can be magnetic material or non-magnetic material. When it is non-magnetic material, it is necessary to avoid the shell wall 12 being too thick so that the magnetic force of the magnetic body 4 outside the shell wall 12 is weak and the box cover 3 cannot be kept closed.

[0093] The steamer provided in this embodiment can be operated in the following manner:

[0094] like Figure 2 , Figure 3 As shown, the box cover 3 is generally kept closed, and the permanent magnet 5 indirectly absorbs the magnetic body 4 on the box cover 3 through the magnetic conductor 62 and the valve body 63, and the suction force is greater than or equal to the elastic force of the outer hinge spring, forming a magnetic lock on the box cover 3, so that the box cover 3 is kept closed. The permanent magnet 5 absorbs the magnetic body 4 to keep the box cover 3 closed, without power consumption, and energy saving.

[0095] like Figure 2 , Figure 4 As shown, when the box cover 3 needs to be opened, the coil 61 is energized to generate a magnetic field, so that the magnetic force from the permanent magnet 5 on the magnetic body 4 and the magnetic force generated by the electromagnet 6 when the coil 61 is energized cancel each other out, so that the total magnetic force on the magnetic body 4 is zero or close to zero, the magnetic attraction of the magnetic body 4 is released, and the box cover 3 is unlocked, and the box cover 3 is automatically opened under the action of the external elastic hinge 7. Only the coil 61 needs to be energized momentarily to make the permanent magnet 5 release the magnetic body 4, which consumes less energy.

[0096] When the box cover 3 needs to be closed, the box cover 3 is manually pushed so that the box cover 3 is in the closed position. The magnetic body 4 on the box cover 3 is adsorbed by the permanent magnet 5 through the valve body 63 and the magnet conductor 62. The suction force is greater than or equal to the force of the external elastic hinge 7, so that the box cover 3 is locked and kept closed.

[0097] The permanent magnet 5 and the electromagnet 6 are used to lock and unlock the box cover 3, which consumes less energy, has no mechanical movement, and is noiseless. The box cover 3 is automatically unlocked by energizing the coil 61, so that the box cover 3 can be opened, which can prevent children from operating it, reduce the risk of children opening the box cover 3 and contacting the water tank 2, and improve the safety of the steamer.

[0098] Since there is a certain deviation in the power supply voltage and the magnetic flux of the coil 61, the magnetic force generated by the electromagnet 6 will be biased after the coil 61 is energized, but this does not affect the lid opening operation, because the power supply to the coil 61 is sufficient to offset most of the magnetic force, and the remaining magnetic force can no longer attract the box cover 3.

[0099] In other embodiments, when the box cover 3 needs to be opened, the coil 61 is energized so that the total magnetic force on the magnetic body 4 is zero or close to zero, so that the limit of the box cover 3 is released; then the box cover 3 can be opened by the external elastic hinge 7 or the center of gravity of the box cover 3, so that the limit is automatically released and the box cover 3 is automatically opened, so as to realize fully automatic opening of the cover; the box cover 3 can be manually pushed to open the box cover 3, so that the limit is automatically released and the box cover 3 is manually opened, so as to realize semi-automatic opening of the cover. Both fully automatic opening and semi-automatic opening belong to automatic opening of the cover, and both require the coil 61 to be energized to automatically release the limit of the magnetic body 4 before opening the cover, and both can prevent children from operating.

[0100] Although the specific implementations of the utility model are described above, those skilled in the art should understand that this is only an example, and the protection scope of the utility model is defined by the attached claims. Those skilled in the art can make various changes or modifications to these implementations without departing from the principle and essence of the utility model, but these changes and modifications fall within the protection scope of the utility model.

Claims

1. A steamer, characterized in that: It includes: A base body, wherein a receiving cavity is defined in the base body; A water tank, disposed in the accommodating cavity; A box cover, movably arranged on the base body and corresponding to the position of the water tank, for closing the containing cavity; A magnetic body and a permanent magnet, one of which is fixed on the box cover and the other is fixed on the base, and the permanent magnet is used to absorb the magnetic body to close the box cover; The electromagnetic component is used for generating a magnetic field by energizing to make the permanent magnet release the magnetic attractor.

2. The steamer according to claim 1, characterized in that: The steamer also includes a heat source, which is used for cooking food.

3. The steamer according to claim 1, characterized in that: The electromagnetic assembly includes a magnetizer and a coil, the permanent magnet absorbs the magnetic body through the magnetizer, and the coil is used to generate a magnetic field to make the magnetizer release the magnetic body; And / or, the electromagnetic component includes a valve body and a coil, the permanent magnet and the coil are fixed in the valve body, the material of the valve body is a magnetic conductive material, the permanent magnet absorbs the magnetic body through the valve body, and the coil is used to generate a magnetic field to make the valve body release the magnetic body.

4. The steamer according to claim 3, characterized in that: The magnetic gap between the magnetic conductor and / or the valve body and the permanent magnet is zero; And / or, the valve body is fixed on the base, and the magnetic body is fixed on the box cover.

5. The steamer according to claim 3, characterized in that: The magnetic conductor is fixed in the valve body; And / or, the magnetic conductor is made of a material having a higher magnetic permeability than the valve body.

6. The steamer according to claim 3, characterized in that: The valve body comprises a bottom wall and a side wall connected to form a concave cavity, and when the box cover is closed, the bottom wall is located on a side of the valve body away from the magnetic body; The valve body absorbs the magnetic body through the side wall, and the magnetic conductor, the permanent magnet and the bottom wall are in contact with each other in sequence; And / or, the coil is located between the side wall and the magnetic conductor.

7. The steamer according to claim 6, characterized in that: The surfaces where the magnetizer and the permanent magnet abut against each other are both planes, and the surfaces where the permanent magnet and the bottom wall abut against each other are both planes.

8. The steamer according to claim 1, characterized in that: The box cover is rotatably arranged on the base; And / or, the box cover and the accommodating cavity are arranged at the lower part of the base.

9. The steamer according to claim 1, characterized in that: The lower end or the horizontal end of the box cover is rotatably connected to the base through an external elastic hinge, so that the box cover is kept open; Alternatively, the lower end of the box cover is rotatably connected to the base, and the center of gravity of the box cover is located on a side away from the base, so that the box cover remains open.

10. The steamer according to claim 1, characterized in that: The lower end of the box cover is rotatably connected to the base. When the box cover is opened, it is parallel to the horizontal direction, or obliquely upward and forms an angle greater than zero and less than or equal to 5° with the horizontal direction.

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