Energy-saving and heat-insulating drum-shaped electric cooker

Abstract

The utility model discloses an energy-saving and heat-insulating drum-shaped electric cooker, and relates to the field of electric cookers. The electric cooker comprises a cooker body, an inner groove is formed in the center of the bottom of the cooker body, the rectifier is installed at the bottom of the electric cooker, the rectifier is installed between a temperature controller and a heating plate of the electric cooker, and the electric cooker is mainly used for being in a heat preservation state after rice is cooked thoroughly. When the temperature of the electric cooker is lower than the set temperature of 70 DEG C, the temperature controller is closed, a power supply enters the rectifier through the temperature controller, and the rectifier automatically reduces the power of the power supply entering the heating plate to be one fifth of the original power of the heating plate, so that the current of the temperature controller is also reduced by five times, the service life of the temperature controller is prolonged, and the service life of the electric cooker is prolonged. And rice crusts cannot be generated in the pot, so that the effects of saving energy and grains are achieved, and meanwhile, the common problems of a drum-shaped pot are solved.

Description

Technical Field

[0001] The utility model relates to the field of electric rice cookers, in particular to an energy-saving and heat-insulating drum-shaped electric rice cooker. Background Art

[0002] A drum-shaped rice cooker usually consists of basic components such as an outer pot, an inner pot, a heating device and a temperature control device. The inner pot is used to hold food, the heating device provides heat, and the temperature control device ensures that the temperature is stable during the cooking process. Its working principle is similar to that of an ordinary rice cooker. The food in the inner pot is heated until cooked through the heating device. When the temperature reaches the set value, the temperature control device will cut off the power supply or reduce the heating power to keep the temperature in the pot stable. In addition, the drum-shaped rice cooker is also multifunctional, such as cooking rice, porridge, soup, etc., to meet the cooking needs of different users. At the same time, most of them are also equipped with a keep warm function, which can automatically switch to keep warm mode after cooking is completed to maintain the temperature of the food. The inner pot is usually made of non-stick coating or easy-to-clean materials, which is convenient for users to clean and maintain.

[0003] However, the current traditional drum-shaped rice cooker has significant design problems. Its control circuit relies only on a single temperature control switch to control the power supply, which is directly connected to the heating plate for heating. Since the power of the heating plate is mainly designed for cooking, the operating temperature is as high as 155 degrees, while only 70 degrees is required during the insulation stage. If this high power is used directly for insulation, the temperature control switch will disconnect the power supply in less than 0.2 minutes after power is turned on because the temperature of the heating plate quickly reaches 70 degrees. However, due to the lag in temperature transfer, the temperature of the heating plate will continue to rise after power is turned off. In addition, the drum-shaped pot body lacks insulation material, and the temperature inside the pot quickly drops to the lower limit of 60 degrees of the thermostat, causing the thermostat to frequently close and power on for heating. This process is repeated every less than 2 minutes. This frequent operation not only makes the rice in the pot easy to dry and yellow, forming thick rice crust, causing food waste, but also the frequent on and off at high power for a long time greatly shortens the service life of the thermostat, which can easily cause its contacts to burn, stick and be damaged. Utility Model Content

[0004] Based on this, the purpose of the utility model is to provide an energy-saving and heat-insulating drum-shaped rice cooker to solve the technical problems of traditional drum-shaped rice cookers caused by a single control circuit and the mismatch between the power of the heating plate and the heat preservation requirements, such as frequent power on and off, rice easily becoming dry and yellow, shortened service life of the thermostat and food waste.

[0005] To achieve the above object, the utility model provides the following technical solution: an energy-saving and heat-insulating drum-shaped electric rice cooker, comprising an electric rice cooker, wherein the electric rice cooker comprises a cooker body, an inner groove is formed at the bottom center of the cooker body, and the inner groove is closed by a bottom cover, a control assembly is arranged in the inner groove, the control assembly comprises a heating plate, a magnet, and a ceramic fuse, the ceramic fuse comprises a mounting base, and a rectifier is connected to the bottom of the mounting base by bolts.

[0006] By adopting the above technical solution, by arranging an inner groove at the bottom of the rice cooker body and installing a control component including a rectifier, the rice cooker is made compact in structure and functionally integrated, and is easy to maintain.

[0007] Furthermore, the rectifier is connected in series between the power supply and the heating plate through a circuit line, and the rectifier is used to protect the circuit.

[0008] By adopting the above technical solution, the rectifier is connected in series between the power supply and the heating plate, which effectively protects the circuit and improves the safety and stability of the rice cooker.

[0009] Furthermore, four supporting legs are provided on the outer side of the bottom of the pot body, and anti-slip pads are provided on the bottom of the four supporting legs.

[0010] By adopting the above technical solution, four supporting legs and anti-skid pads are arranged at the bottom of the rice cooker body, thereby enhancing the placement stability of the rice cooker and preventing it from sliding.

[0011] Furthermore, the anti-slip pad is arranged in a circular structure, and the material of the anti-slip pad is silicone.

[0012] By adopting the above technical solution, the anti-slip pad adopts a circular structure and a silicone material, which provides a good anti-slip effect and increases the comfort of use.

[0013] Furthermore, a control panel is provided on the outer surface of the pot body, and a pressure plate is provided on the control panel.

[0014] By adopting the above technical solution, a control panel and a pressure plate are arranged on the outer surface of the rice cooker, which makes it convenient for users to operate and control various functions of the rice cooker.

[0015] Furthermore, a cover is buckled on the top of the pot body, and a handle is provided on the top of the cover body.

[0016] By adopting the above technical solution, a cover is buckled on the top of the pot body and a handle is provided, which makes it convenient for users to open and close the cover, thereby improving the convenience of use.

[0017] Furthermore, a pressure relief hole is provided on one side of the handle, and the pressure relief hole is used to relieve the pressure in the pot body.

[0018] By adopting the above technical solution, a pressure relief hole is provided on the handle to relieve the pressure in the rice cooker body, thereby ensuring the safety of the rice cooker during use.

[0019] Furthermore, the heating plate is mounted on the inner container, and a magnet is provided at the axis of the heating plate.

[0020] By adopting the above technical solution, the heating plate is installed on the inner tank and a magnetic steel is set at the axis to achieve efficient heating and temperature control.

[0021] Furthermore, a plurality of wiring ports are provided on the outer side of the heating plate, and the plurality of wiring ports are used to connect circuit lines.

[0022] By adopting the above technical solution, multiple wiring ports are provided on the outer side of the heating plate, which facilitates the connection of circuit lines and improves the wiring flexibility and maintainability of the rice cooker.

[0023] Furthermore, a ceramic fuse is provided on one side of the plurality of wiring ports, and the ceramic fuse is used to prevent the thermostat from failing.

[0024] By adopting the above technical solution, a ceramic fuse is provided on one side of the wiring port to prevent the thermostat from failing, thereby further enhancing the safety and reliability of the rice cooker.

[0025] In summary, the present invention has the following beneficial effects:

[0026] 1. The utility model is provided with a mounting base and a rectifier. By introducing a rectifier and combining it with a control assembly, the problems existing in traditional drum-shaped electric rice cookers are effectively solved. The rectifier is installed at the bottom of the mounting base of a ceramic insurance and is disassembled and connected by bolts, which is convenient for maintenance and replacement. The main function of the rectifier is to regulate and stabilize the current. It can convert the unstable current of the input into a stable direct current, thereby optimizing the heating process of the electric rice cooker. When the electric rice cooker is in the insulation stage, the rectifier can reduce the heating power of the heating plate, making it run with lower power, thereby avoiding the temperature from rising rapidly and exceeding the 70 degrees required for insulation. At the same time, due to the presence of the rectifier, the heating plate no longer operates at the high power used during cooking during the heat preservation phase, which reduces the frequent on and off of the temperature control switch. The temperature control switch no longer needs to disconnect the power supply in an extremely short period of less than 0.2 minutes due to the temperature quickly reaching 70 degrees Celsius, thereby avoiding the problem of the heating plate temperature continuing to rise and the temperature in the pot quickly dropping due to the hysteresis of temperature transfer. In addition, the rectifier can also reduce the usage burden of the thermostat and extend its service life. Since the heating plate operates at a lower power during the heat preservation phase, the thermostat no longer needs to be frequently connected and disconnected, which reduces the wear and burning risk of its contacts.

[0027] 2. The utility model provides an anti-skid pad. Since the anti-skid pad is arranged below the supporting legs at the bottom of the rice cooker body, its circular structure and silicone material provide good stability and anti-skid performance. Such a design can prevent the rice cooker from sliding or tipping over due to external factors such as an uneven desktop or external force collision during use, thereby ensuring the safety of the user and the stable operation of the rice cooker itself. In addition, the anti-skid pad made of silicone material also has certain wear resistance and durability, which can extend the service life of the rice cooker. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0029] Figure 2 This is a bottom-view sectional three-dimensional structural diagram of the present invention;

[0030] Figure 3 For this utility model Figure 2 A schematic diagram of the structure enlarged in the middle;

[0031] Figure 4 For this utility model Figure 2 Schematic diagram of the structure enlarged at point B.

[0032] In the figure: 1. Rice cooker; 101. Rice cooker body; 102. Support legs; 103. Control panel; 104. Pressure plate; 105. Cover; 106. Handle; 107. Pressure relief hole; 108. Inner groove; 2. Control assembly; 201. Heating plate; 202. Magnet; 203. Wiring port; 204. Ceramic fuse; 205. Mounting base; 206. Rectifier; 3. Anti-slip pad. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0034] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention. In addition, the terms "first", "second" and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0035] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "install", "connect", "connect" and "set" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium; it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] The following describes an embodiment of the present invention based on its overall structure.

[0037] Example 1:

[0038] An energy-saving and heat-insulating drum-shaped rice cooker, such as Figure 1 - Figure 4 As shown, the rice cooker 1 includes an electric rice cooker body 101, an inner groove 108 is provided at the bottom center of the rice cooker body 101, and the inner groove 108 is closed by a bottom cover, a control assembly 2 is provided in the inner groove 108, and the control assembly 2 includes a heating plate 201, a magnetic steel 202, and a ceramic fuse 204, and the ceramic fuse 204 includes a mounting base 205. The bottom of the mounting base 205 is connected to a rectifier 206 by bolt disassembly. By designing a structure including the inner groove 108 in the rice cooker 1 and the rice cooker body 101 and the control assembly 2, effective utilization of the internal space of the rice cooker is achieved. The inner groove 108 is closed by the bottom cover to protect the internal control assembly 2, such as the heating plate 201, the magnetic steel 202 and the ceramic fuse 204, to ensure that they are not disturbed by the outside world during use. In particular, the bolted disassembly connection design of the ceramic fuse 204 and the rectifier 206 is convenient for maintaining and repairing the rice cooker.

[0039] See Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 The rectifier 206 is connected in series between the power supply and the heating plate through a circuit line. The rectifier 206 is used to protect the circuit. The rectifier 206 is connected in series between the power supply and the heating plate 201 through a circuit line. This design not only ensures the stable transmission of current, but also protects the circuit through rectification, prevents the rice cooker from being damaged due to current fluctuations or abnormalities, and improves the safety and service life of the rice cooker 1.

[0040] Example 2:

[0041] See Figure 1 、 Figure 4Four supporting legs 102 are provided on the outer side of the bottom of the rice cooker body 101, and anti-slip pads 3 are provided on the bottom of the four supporting legs 102. The four supporting legs 102 and the anti-slip pads 3 provided on the outer side of the bottom of the rice cooker body 101 work together to enhance the stability of the rice cooker 1 when it is placed. The four supporting points disperse the weight of the rice cooker and reduce the risk of tipping over, while the anti-slip pads 3 further increase the friction with the contact surface to prevent the rice cooker from sliding during use.

[0042] See Figure 1 、 Figure 4 The anti-slip pad 3 is arranged in a circular structure, and the material of the anti-slip pad 3 is silicone. The anti-slip pad 3 adopts a circular structure and silicone material. This design not only makes the anti-slip pad 3 evenly distributed on the contact surface, improving the anti-slip effect, but also the silicone material has good elasticity and wear resistance, and can maintain the anti-slip performance for a long time, while increasing the user's comfort when using the rice cooker.

[0043] See Figure 1 、 Figure 2 A control panel 103 is provided on the outer surface of the rice cooker body 101, and a pressure plate 104 is provided on the control panel 103. The control panel 103 and the pressure plate 104 provided on the outer surface of the rice cooker body 101 provide a convenient operation interface for the user. Various function buttons and a display screen are integrated on the control panel 103. The user can realize various function settings of the rice cooker through simple operations, and the design of the pressure plate 104 increases the stability of the control panel and prevents damage caused by misoperation or external force.

[0044] See Figure 1 、 Figure 2 A cover 105 is fastened to the top of the pot body 101, and a handle 106 is provided on the top of the cover 105. The design of the cover 105 and the handle 106 fastened to the top of the pot body 101 not only enables the rice cooker to maintain a sealed state during the cooking process and improve cooking efficiency, but also the design of the handle 106 enables the user to easily open and close the cover 105, thereby improving the convenience of use.

[0045] See Figure 1 、 Figure 2 A pressure relief hole 107 is provided on one side of the handle 106, and the pressure relief hole 107 is used to relieve the pressure inside the rice cooker body 101. When the pressure inside the rice cooker body 101 is too high, the pressure relief hole 107 can release the pressure in time to prevent damage to the rice cooker or safety accidents caused by excessive pressure.

[0046] See Figure 1 、 Figure 2 、 Figure 3The heating plate 201 is installed on the inner pot, and a magnet 202 is provided at the axis of the heating plate 201. The above design realizes efficient heating and temperature control. The heating plate 201 directly heats the inner pot, which improves the heating efficiency. The setting of the magnet 202 can control the on and off of the power supply according to the change of temperature, thereby realizing precise control of the cooking process.

[0047] See Figure 1 、 Figure 2 、 Figure 3 A plurality of wiring ports 203 are provided on the outside of the heating plate 201, and the plurality of wiring ports 203 are used to connect circuit lines. The design of the plurality of wiring ports 203 allows the rice cooker to select different wiring methods when connecting the circuit, meeting the needs of different users. At the same time, this also facilitates the maintenance and repair of the rice cooker.

[0048] See Figure 1 、 Figure 2 、 Figure 3 A ceramic fuse is provided on one side of the multiple wiring ports 203, and the ceramic fuse is used to prevent the thermostat from failing. The above design enhances the safety and reliability of the rice cooker. The ceramic fuse plays an important protective role in the operation of the rice cooker. When an abnormality occurs in the circuit or the thermostat fails, the ceramic fuse can cut off the power supply in time to prevent the rice cooker from being damaged or causing safety accidents such as fire.

[0049] The implementation principle of the utility model is as follows: first, check the integrity of the electric rice cooker 1 to ensure that the cooker body 101, the cover 105 and all accessories such as the support legs 102 and the anti-slip pad 3 are not damaged and are firmly installed; then put the cleaned inner pot into the cooker body 101, ensure that the bottom of the inner pot is in close contact with the heating plate 201, and snap the cover 105 onto the cooker body 101 to ensure a good seal; plug the power cord of the electric rice cooker into the power socket to ensure that the power connection is stable; select the desired cooking mode through the buttons or knobs on the control panel 103, and may need to press the pressure plate 104 to confirm the selection;

[0050] Press the start button or corresponding start button on the control panel 103, and the electric cooker will start working. At this moment, the rectifier 206 is connected in series between the power supply and the heating plate 201 by a circuit line to regulate and stabilize the current and optimize the heating process.

[0051] When the rice is cooked, the rice cooker automatically enters the keep warm state. The rectifier 206 reduces the heating power of the heating plate 201 during this stage, so that it operates at a lower power, thereby preventing the temperature from rising rapidly and exceeding the 70 degrees Celsius required for keeping warm. Due to the presence of the rectifier 206, the heating plate 201 no longer operates at the high power during cooking during the keep warm stage, which reduces the frequent on and off of the temperature control switch and extends the service life of the thermostat.

[0052] If it is not necessary to continue keeping warm, the rice cooker can be turned off by pressing a button or turning a knob on the control panel 103 .

[0053] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not limitations on the present invention. The specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and purpose of the present invention, but as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. An energy-saving and heat-insulating drum-shaped rice cooker, characterized in that: The electric rice cooker (1) comprises an electric rice cooker body (101), an inner groove (108) is provided at the bottom center of the electric rice cooker body (101), and the inner groove (108) is closed by a bottom cover. A control component (2) is provided in the inner groove (108), and the control component (2) comprises a heating plate (201), a magnetic steel (202), and a ceramic fuse (204). The ceramic fuse (204) comprises a mounting base (205), and a rectifier (206) is detachably connected to the bottom of the mounting base (205) by means of bolts.

2. The energy-saving and heat-insulating drum-shaped rice cooker according to claim 1, characterized in that: The rectifier (206) is connected in series between the power supply and the heating plate through a circuit line, and the rectifier (206) is used to protect the circuit.

3. The energy-saving and heat-insulating drum-shaped rice cooker according to claim 1, characterized in that: Four supporting legs (102) are provided on the outer side of the bottom of the pot body (101), and anti-slip pads (3) are provided on the bottoms of the four supporting legs (102).

4. The energy-saving and heat-insulating drum-shaped rice cooker according to claim 3, characterized in that: The anti-slip pad (3) is arranged in a circular structure, and the material of the anti-slip pad (3) is silica gel.

5. The energy-saving and heat-insulating drum-shaped rice cooker according to claim 1, characterized in that: A control panel (103) is provided on the outer surface of the pot body (101), and a pressing plate (104) is provided on the control panel (103).

6. The energy-saving and heat-insulating drum-shaped electric rice cooker according to claim 1, characterized in that: The top of the pot body (101) is buckled with a cover body (105), and the top of the cover body (105) is provided with a handle (106).

7. The energy-saving and heat-insulating drum-shaped rice cooker according to claim 6, characterized in that: A pressure relief hole (107) is provided on one side of the handle (106), and the pressure relief hole (107) is used to relieve the pressure in the pot body (101).

8. The energy-saving and heat-insulating drum-shaped electric rice cooker according to claim 1, characterized in that: The heating plate (201) is mounted on the inner container, and a magnetic steel (202) is provided at the axis of the heating plate (201).

9. The energy-saving and heat-insulating drum-shaped electric rice cooker according to claim 1, characterized in that: The outer side of the heating plate (201) is provided with a plurality of wiring ports (203), and the plurality of wiring ports (203) are used for connecting circuit lines.

10. The energy-saving and heat-insulating drum-shaped rice cooker according to claim 9, characterized in that: A ceramic fuse is provided on one side of the plurality of wiring ports (203), and the ceramic fuse is used to prevent the thermostat from failing.

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