An electric rice cooker heated by coil induction
The rice cooker, which uses coil induction heating, solves the problem of uneven heating of the inner pot. It uses a cast iron inner pot and a temperature sensor module to control heating, achieving uniform heating of the bottom of the inner pot, improving thermal efficiency and enhancing functionality and safety.
Patent Information
- Application Number
- CN202310408182.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-04-17
- Publication Date
- 2025-09-16
- Estimated Expiration
- 2043-04-17
AI Technical Summary
The inner pot of the existing electric rice cooker is heated unevenly, resulting in low thermal efficiency.
It adopts coil induction heating method, the inner coil pot body is electrically connected to the outer pot body, the inner pot is made of cast iron material, and the heating is monitored and controlled in real time through the temperature sensing module. The inner guard ring fixes the inner pot to prevent uneven heating.
It can achieve uniform heating of the bottom of the inner pot, improve thermal efficiency, ensure that the food is heated evenly, and has multiple functions such as cooking, stewing, frying, hot pot, and keeping warm, which increases safety and convenience of use.
Smart Images

Figure CN116602536B_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of electric rice cookers, and more particularly to an electric rice cooker heated by coil induction. Background Art
[0002] The electric rice cooker is a modern cooking appliance that can perform multiple processes such as steaming, boiling, stewing, simmering, and braising. It can not only cook food, but also keep it warm. It is clean and hygienic to use, does not pollute, saves time and effort, and is one of the indispensable appliances for modern housework.
[0003] Chinese invention patent application number 201620019758.4 discloses an electric rice cooker heating device and its associated electric rice cooker, which are used to heat an inner pot. The device comprises an aluminum pot and a heating tube. The aluminum pot is located at the bottom of the inner pot. The inner surface of the aluminum pot is provided with a circular groove. The groove also includes a notch. The heating tube is retained within the groove, and both ends of the heating tube extend through the notch. An aluminum plate is also provided at the bottom of the inner pot. The aluminum plate is bolted to the aluminum pot. The aluminum plate is in contact with the bottom of the inner pot. The sidewalls of the aluminum pot are in contact with the outer wall of the inner pot. The present invention also discloses an electric rice cooker comprising an inner pot, the bottom of which is provided with the electric rice cooker heating device. The inner pot is a ceramic pot. The electric rice cooker heating device of the present invention eliminates the need for welding, resulting in a simple manufacturing process and low manufacturing cost.
[0004] However, in the electric rice cooker of the above solution, the heating tube is located at the bottom of the inner pot, and there is a phenomenon of uneven heating when heating the bottom of the inner pot. Therefore, it is necessary to propose an electric rice cooker that uses coil induction heating to at least partially solve the problems existing in the prior art. Summary of the Invention
[0005] The Summary of the Invention introduces a series of simplified concepts that will be further described in the Detailed Description of the Invention. The Summary of the Invention is not intended to limit the key features and essential features of the claimed technical solution, nor is it intended to determine the scope of protection of the claimed technical solution.
[0006] To at least partially solve the above problems, the present invention provides an electric rice cooker that is heated by coil induction, comprising: an electric rice cooker body, the electric rice cooker body comprising an outer pot body, an inner coil pot body, and an inner pot, the inner coil pot body being arranged in the outer pot body and electrically connected to a control module on the outer pot body, the inner pot body being arranged in the inner coil pot body, and the inner coil pot body being used to heat the inner pot.
[0007] According to an embodiment of the present invention, an electric rice cooker using coil induction heating comprises an inner coil pot body including a bottom coil seat and an inner pot cover. The bottom coil seat is within the outer pot body, and the inner pot cover is disposed on the bottom coil seat. A temperature sensing module is disposed in the middle of the bottom coil seat, and the temperature sensing module abuts against and contacts the bottom of the inner pot. A plurality of coil baffles are disposed at the bottom of the bottom coil seat, and a coil body is wound within the plurality of coil baffles. The coil body, the temperature sensing module, and the control module are electrically connected.
[0008] According to the electric rice cooker using coil induction heating according to an embodiment of the present invention, a raised portion is provided in the middle of the bottom coil seat, a groove ring is provided around the raised portion, a fixing hole is provided in the raised portion, and the temperature sensing module is provided in the fixing hole.
[0009] According to an embodiment of the electric rice cooker for coil induction heating, the electric rice cooker body further comprises an upper pot cover and an inner protective ring, wherein the upper pot cover is arranged at the upper end of the outer pot body, the inner protective ring is arranged in the upper pot cover and is located above the inner pot cover, and the inner protective ring is sleeved on the upper part of the inner pot.
[0010] According to an embodiment of the present invention, the electric rice cooker using coil induction heating, the control module includes an operation panel and a control circuit board. The operation panel is arranged on one side of the outer pot body, and the control circuit board is arranged in an electronic control shell of the outer pot body, and the electronic control shell is arranged on the other side of the outer pot body. The operation panel is electrically connected to the inner coil pot body and the control circuit board respectively.
[0011] According to an embodiment of the electric rice cooker using coil induction heating, the temperature sensing module includes a thermally conductive cap, a first temperature sensor, and a fixed cylinder. The fixed cylinder is disposed in a fixing hole, the first temperature sensor is disposed in the fixed cylinder, the first temperature sensor is electrically connected to a control module, the thermally conductive cap is disposed at the upper end of the fixed cylinder, a first inner spring is sleeved on the fixed cylinder, and the first inner spring presses against the thermally conductive cap, causing the thermally conductive cap to press against and contact the bottom of the inner pot.
[0012] According to an embodiment of the electric rice cooker using coil induction heating, the temperature sensing module includes an anti-fall bearing mechanism, a second temperature sensor, and an inner bearing mechanism. The inner bearing mechanism is arranged on the pot body base at the bottom of the outer pot body and is located below the bottom coil seat. The upper portion of the inner bearing mechanism extends into the fixing hole. The anti-fall bearing mechanism is movably arranged in the upper portion of the inner bearing mechanism. The second temperature sensor is arranged in the anti-fall bearing mechanism and is electrically connected to the control module.
[0013] According to the electric rice cooker inductively heated by coils according to an embodiment of the present invention, the anti-fall bearing mechanism includes a lifting seat, a protective elastic sleeve, and a second inner spring. The lifting seat is movably arranged on the upper part of the inner bearing mechanism. A limit baffle is provided in the lifting seat, and a sliding hole is provided on the limit baffle. The protective elastic sleeve is arranged in the lifting seat and movably passes through the sliding hole. A conical spring seat is provided at the bottom of the protective elastic sleeve. The second inner spring is arranged in the inner bearing mechanism and abuts against the conical spring seat. A bearing cavity is provided in the protective elastic sleeve. The second temperature sensor is arranged in the bearing cavity, and a wire rod is connected to the bottom of the second temperature sensor, and the wire rod passes through the conical spring seat.
[0014] According to an embodiment of the present invention, the electric rice cooker that is induction heated by a coil, the internal bearing mechanism includes a bearing base plate, a bearing cylinder, and a plurality of V-shaped supports. The bottom of the bearing base plate is provided with a plurality of fixed foot plates, and the fixed foot plates are provided on the anti-magnetic plate inside the base of the pot body. The bearing base plate is provided with bearing through holes, and the plurality of V-shaped supports are evenly distributed on the bearing base plate and located around the bearing through holes. The bearing cylinder is connected to the plurality of V-shaped supports and extends into the fixed hole. A plurality of vertical slide grooves are provided in the bearing cylinder, and the lifting seat is slidably connected to the vertical slide grooves.
[0015] According to an embodiment of the electric rice cooker using coil induction heating, the V-shaped support portion includes a V-shaped rod, a third inner spring, and a transverse telescopic rod. The middle portion of the V-shaped rod is hinged on the bearing base plate. The third inner spring is arranged on the bearing base plate to support one end of the V-shaped rod. The transverse telescopic rod is arranged on the other end of the V-shaped rod and inserted into the connecting hole of the bearing cylinder. The transverse telescopic rod passes through the connecting hole and extends into the vertical slide groove. A plurality of lower protrusions are provided at the bottom of the lifting seat, and the lower protrusions correspond to the transverse telescopic rod.
[0016] Compared with the prior art, the present invention has at least the following beneficial effects:
[0017] The present invention provides an electric rice cooker that is heated by coil induction, comprising: an electric rice cooker main body, the electric rice cooker main body comprising an outer pot body, an inner coil pot body, and an inner pot. Specifically, in order to control the heating use of the inner coil pot body, a control module is installed on the outer wall of the outer pot body, so that the inner coil pot body is electrically connected to the control module after being installed in the outer pot body. Therefore, when in use, the user puts the inner pot body into the inner coil pot body and covers the pot lid, and then starts the control module to set parameters, which can realize functions such as cooking, stewing soup, frying, hot pot, keeping warm, and setting a timer. The inner coil pot body can evenly heat the bottom of the inner pot body, so that the bottom of the inner pot body is evenly heated. The inner pot body is a pot body cast from an iron material, so after the inner coil pot body is heated, more iron elements cut the magnetic lines of force and participate in the heat generation. During the cooking process, the food is heated evenly and the thermal efficiency is also higher.
[0018] The other advantages, objectives and features of the electric rice cooker with coil induction heating according to the present invention will be partially reflected in the following description and partially understood by those skilled in the art through study and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:
[0020] Figure 1 It is a structural schematic diagram of the present invention.
[0021] Figure 2 It is a schematic diagram of the internal structure of the present invention.
[0022] Figure 3 It is a schematic diagram of part of the internal structure of the outer pot body in the present invention.
[0023] Figure 4 It is a structural schematic diagram of the inner coil pot body in the present invention.
[0024] Figure 5 The structure of the temperature sensing module in the present invention is shown as follows: Figure 1 .
[0025] Figure 6 Schematic diagram of the structure of the thermal cap in the present invention.
[0026] Figure 7 The structure of the temperature sensing module in the present invention is shown as follows: Figure 2 .
[0027] Figure 8 The internal structure of the temperature sensing module in the present invention is shown in FIG. Figure 1 .
[0028] Figure 9 This is a bottom view of the structure of the temperature sensing module in the present invention.
[0029] Figure 10 The internal structure of the temperature sensing module in the present invention is shown in FIG. Figure 2 .
[0030] Figure 11 It is a structural schematic diagram of the anti-fall bearing mechanism in the present invention.
[0031] Figure 12 It is a top view of the structure of the outer pot body in the present invention. DETAILED DESCRIPTION
[0032] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments so that those skilled in the art can implement the invention with reference to the description.
[0033] It should be understood that terms such as “having”, “including” and “comprising” used herein do not preclude the existence or addition of one or more other elements or combinations thereof.
[0034] like Figure 1-Figure 4 As shown, the present invention provides an electric rice cooker using coil induction heating, comprising: an electric rice cooker body 100, wherein the electric rice cooker body 100 includes an outer pot body 1, an inner coil pot body 2, and an inner pot 3. Specifically, in order to control the heating of the inner coil pot body 2, a control module 11 is installed on the outer wall of the outer pot body 1. Therefore, after the inner coil pot body 2 is installed in the outer pot body 1, it is electrically connected to the above-mentioned control module 11. Therefore, when in use, the user puts the inner pot 3 into the inner coil pot body 2 and covers the pot lid 30. Then, the control module 11 can be started to set parameters, and functions such as cooking, stewing soup, frying, hot pot, keeping warm, and setting a timer can be realized. The inner coil pot body 2 can evenly heat the bottom of the inner pot 3, thereby achieving uniform heating of the bottom of the inner pot 3. Here, the inner pot 3 is made of cast iron material. Therefore, after the inner coil pot body 2 is heated, more iron elements cut the magnetic lines of force and participate in the heat generation. During the cooking process, the food is heated evenly and the thermal efficiency is also higher.
[0035] Furthermore, the above-mentioned electric rice cooker body 100 also includes an upper pot cover 12 and an inner protective ring 13. Here, the upper pot cover 12 is installed at the upper end of the outer pot body 1, and the inner protective ring 13 is installed in the upper pot cover 12 and is located above the inner pot cover 22. When in use, the inner protective ring 13 is sleeved on the upper part of the inner pot 3. The upper part of the inner protective ring 13 can be further fixed by the inner protective ring 13 to avoid skewing during use and affecting use.
[0036] Furthermore, two hand rests 121 are provided on the outer wall of the upper pot cover 12. The hand rests 121 have brackets, and the pot holder 301 on the inner pot 3 can correspond to the brackets. This makes it convenient for subsequent users to take the inner pot 3, and also avoids the pot holder 301 being exposed to the outside and scalding the user during use, which greatly increases safety.
[0037] Exemplary Control Module
[0038] Furthermore, some embodiments of the present invention provide a specific structure of the control module 11, and the control module 11 of this structure includes an operation panel 111 and a control circuit board, wherein the operation panel 111 is installed on one side of the outer pot body 1, and the electric control shell 110 is installed on the other side of the outer pot body 1, and the control circuit board is installed in the electric control shell 110. It can be understood that a cooling fan is also installed in the electric control shell 11, and the cooling fan 113 is used to dissipate heat for the control circuit board to prevent the heat from the working heating line of the inner coil pot body 2 from affecting the control circuit board and reducing its service life; wherein the operation panel 111 is electrically connected to the inner coil pot body 2 and the control circuit board, respectively, and the operation panel 111 is specifically convenient for users to use.
[0039] Example inner coil pot
[0040] Furthermore, some embodiments of the present invention provide a specific structure of the inner coil pot body 2, and the above-mentioned inner coil pot body 2 includes a bottom coil seat 21 and an inner pot cover 22. Specifically, the above-mentioned bottom coil seat 21 is installed in the outer pot body 1, and the inner pot cover 22 is installed on the bottom coil seat 21.
[0041] The bottom of the outer pot body 1 is provided with a pot body base 10, and a plurality of vertical fixing rods 101 are installed on the pot body base 10. Here, four vertical fixing rods 101 are designed as an example. Correspondingly, four fixing sleeves are installed on the outer peripheral wall of the bottom coil seat 21. When the bottom coil seat 21 is installed, the upper ends of the vertical fixing rods 101 pass through the fixing sleeves and extend a part upward, so as to achieve the fixation of the bottom coil seat 21 in the outer pot body 1. The inner pot cover 22 is installed on the bottom coil seat 21, and the outer wall of the inner pot cover 22 is designed with corresponding vertical connecting rods 221. The lower end of the vertical connecting rod 221 has a socket sleeve 222, so the upper end of the vertical fixing rod 101 is inserted into the socket sleeve 222 to achieve a fixed connection between the vertical fixing rod 101 and the vertical connecting rod 221. In this way, after the bottom coil seat 21 and the inner pot cover 22 are fixedly connected, the inner coil pot body 2 is formed.
[0042] Furthermore, a temperature sensing module 26 is installed in the middle of the bottom coil seat 21. The temperature sensing module 26 presses against and contacts the bottom of the inner pot 3. Here, the temperature sensing module 26 is electrically connected to the control module 11 to monitor the temperature of the inner pot 3 in real time, making it convenient for the control module 11 to control the coil body, thereby accurately controlling the cooking temperature of the food to meet the cooking requirements of different foods.
[0043] Furthermore, a plurality of coil baffles 23 are installed at the bottom of the bottom coil seat 21, and the plurality of coil baffles 23 are evenly arranged in a circle. The interior of the plurality of coil baffles 23 constitutes an installation space, and the coil body is wound in the installation space. The coil body is electrically connected to the control module 11, so after the user supplies power to the coil body through the control module 11, the coil body performs heating work to achieve uniform heating of the inner tank 3.
[0044] Furthermore, a raised portion 24 is designed in the middle of the above-mentioned bottom coil seat 21, and a groove ring 25 is provided around the raised portion 24. A fixing hole 241 is provided in the raised portion 24, and the above-mentioned temperature sensing module 26 is installed in the fixing hole 241. Here, the inner liner 3 is supported by the raised portion 24, and the temperature sensing module 26 presses against and contacts the bottom of the inner liner 3, and separates the inner liner 3 from the bottom coil seat 21 through the groove ring 25. Since the bottom of the inner liner 3 has an anti-rust coating, the raised portion 24 supports the inner liner 3 to prevent the bottom of the inner liner 3 from being scratched and damaged after long-term contact with the inner wall of the bottom coil seat 21.
[0045] Exemplary Temperature Sensing Module
[0046] like Figure 5-Figure 6 As shown, further, some embodiments of the present invention provide a specific structure of the above-mentioned temperature sensing module 26, which includes a thermal cap 261, a first temperature sensor 262, and a fixed cylinder 263. Specifically, the above-mentioned fixed cylinder 263 is installed in the fixing hole 241, and the thermal cap 261 is installed at the upper end of the fixed cylinder 263. A first inner spring 264 is sleeved on the fixed cylinder 263, and the first inner spring 264 pushes against the thermal cap 261, so that the thermal cap 261 pushes against and contacts the bottom of the inner pot 3, and the first temperature sensor 262 is installed in the fixed cylinder 263 and contacts the bottom of the thermal cap 261. The first temperature sensor 262 is electrically connected to the control module 11, so when the inner pot 3 is heated, the cooking temperature of the food can be accurately controlled through the first temperature sensor 262 to meet the cooking requirements of different foods.
[0047] The above-mentioned temperature sensing module 26 includes structures such as a thermal cap 261, a first temperature sensor 262, and a fixing tube 263. However, since the inner pot 3 in the present invention is made of cast iron material, after the inner pot 3 is heated by the inner coil pot body 2, the user is likely to take the inner pot 3 out of the outer pot body 1 when the inner pot 3 is still very hot, which will burn the user. At this time, the user will suddenly release the inner pot 3, so that the inner pot 3 will fall into the outer pot body 1. Since the temperature sensing module 26 is installed in the protrusion 24, the inner pot 3 will fall onto the temperature sensing module 26, which will cause damage to the temperature sensing module 26.
[0048] like Figure 7-12 As shown, therefore, some embodiments of the present invention further provide another specific structure of the temperature sensing module 26, in which the temperature sensing module 26 includes an anti-fall supporting mechanism 27, a second temperature sensor 28, and an inner supporting mechanism 29. Here, the inner supporting mechanism 29 is installed on the pot body base 10 at the bottom of the outer pot body 1, and the inner supporting mechanism 29 is also located below the bottom coil seat 21, so that the upper part of the inner supporting mechanism 29 extends into the fixing hole 241, and the anti-fall supporting mechanism 27 is installed in the upper part of the inner supporting mechanism 29, and the anti-fall supporting mechanism 27 can move up and down in the upper part of the inner supporting mechanism 29, and the second temperature sensor 28 is installed in the anti-fall supporting mechanism 27 and is electrically connected to the control module 11.
[0049] Here, the anti-fall bearing mechanism 27 provides protection for the second temperature sensor 28. Therefore, when the inner liner 3 falls onto the temperature sensing module 26 after being released by the user, it first contacts the anti-fall bearing mechanism 27. Under the action of the gravity of the inner liner 3, the anti-fall bearing mechanism 27 is impacted. The anti-fall bearing mechanism 27 is deformed after being subjected to the force to cushion the inner liner 3, thereby protecting the second temperature sensor 28.
[0050] Furthermore, in order to realize the above-mentioned function of the anti-fall bearing mechanism 27, a specific structure of the anti-fall bearing mechanism 27 is provided here. The anti-fall bearing mechanism 27 of this structure includes a lifting seat 271, a protective elastic sleeve 272, and a second inner spring. The lifting seat 271 is movably installed on the upper part of the inner bearing mechanism 29. Here, a limit baffle 273 is installed in the lifting seat 271, and a sliding hole is opened on the limit baffle 273.
[0051] The protective elastic sleeve 272 is installed in the lifting seat 271 and is movably inserted into the sliding hole. Further, a conical spring seat 274 is installed at the bottom of the protective elastic sleeve 272, and the second inner spring is installed in the inner bearing mechanism 29, so that the second inner spring is located on the anti-magnetic plate 102, and the upper end of the second inner spring is against the bottom of the conical spring seat 274. The protective elastic sleeve 272 has a bearing cavity 275, and the second temperature sensor 28 is installed in the bearing cavity 275, where the inner liner 3 contacts the protective elastic sleeve 2 After the protective elastic sleeve 272 is lifted, under the action of the gravity of the inner liner 3, the lifting seat 271 and the protective elastic sleeve 272 are synchronously moved into the inner carrying mechanism 29. When the lifting seat 271 is moved into place, the protective elastic sleeve 272 also moves downward in the lifting seat 271. The protective elastic sleeve 272 is deformed by the force, causing the upper edge of the protective elastic sleeve 272 to bend inward, and at the same time, the second temperature sensor 28 in the carrying cavity 275 is exposed. In this way, the second temperature sensor 28 can contact the bottom of the inner liner 3 to detect the temperature of the inner liner 3;
[0052] Furthermore, after the protective elastic sleeve 272 moves downward into position in the lifting seat 271, the conical spring seat 274 compresses the second inner spring below, so that the compressed second inner spring provides elastic support for the conical spring seat 274, thereby enabling the entire protective elastic sleeve 272 to provide an elastic buffering effect for the inner liner 3, thereby preventing the second temperature sensor 28 from being knocked down and damaged.
[0053] Furthermore, a plurality of vertical telescopic rods 278 and a fourth inner spring 279 are installed between the protective elastic sleeve 272 and the limiting baffle 273. The plurality of vertical telescopic rods 278 are installed on the limiting baffle 273. Here, the fourth inner spring 279 is sleeved on the plurality of vertical telescopic rods 278. Therefore, when the protective elastic sleeve 272 is subjected to the gravity of the inner liner 3, the vertical telescopic rods 278 and the fourth inner spring 279 are forced to contract to provide elastic support, thereby cooperating with the protective elastic sleeve 272 to provide a buffer for the inner liner 3, thereby preventing the second temperature sensor from being damaged by being dropped by the inner liner 3.
[0054] Furthermore, the lifting seat 271 has a plurality of arc-shaped clamping plates 280, and the arc-shaped clamping plates 280 are provided with upper protrusions 282. A plurality of upper grooves 242 are opened in the fixing hole 241, so that the upper grooves 242 correspond to the upper protrusions 282. Therefore, when the lifting seat 271 is forced to move downward, the upper protrusions 282 can enter the upper grooves 242, so that the upper grooves 242 also play a role in fixing and limiting the upper protrusions 282.
[0055] Therefore, when the inner pot 3 falls onto the outer pot body 1 , the lifting seat 271 and the protective elastic sleeve 272 cushion the inner pot 3 to prevent the inner pot 3 from falling and damaging the second temperature sensor 28 under the action of gravity.
[0056] The bottom of the above-mentioned second temperature sensor 28 is connected to a wire rod 281, and the wire rod 281 is inserted into the conical spring seat 274. The wire rod 281 can be electrically connected to the control module 11 through other wires. It can be understood that the wire rod 281 is made of flexible material and can be bent without affecting the service life.
[0057] Furthermore, the inner supporting mechanism 29 includes a supporting base 30, a supporting tube 31, and a plurality of V-shaped support portions 32. A plurality of fixed foot plates 302 are mounted on the bottom of the supporting base 30, and the fixed foot plates 302 are fixedly connected to the anti-magnetic plate 102 inside the pot base 10.
[0058] Furthermore, a bearing through hole 303 is opened on the bearing base plate 30, and a plurality of V-shaped supports 32 are evenly distributed on the bearing base plate 30 and located around the bearing through hole 303. Here, the bearing tube 31 is connected by the plurality of V-shaped supports 32, and the bearing tube 31 extends into the fixing hole 241, and a plurality of vertical sliding grooves 311 are opened in the bearing tube 31, and the lifting seat 271 is slidably connected to the vertical sliding grooves 311.
[0059] Therefore, when the lifting seat 271 slides downward into place along the vertical slide groove 311 in the carrying tube 31, the multiple V-shaped supports 32 in the internal carrying mechanism 29 can further provide elastic support for the carrying tube 31, and then the carrying tube 31 provides elastic support for the lifting seat 271. In this way, even if the carrying tube 31 is forced to move downward, since a carrying through hole 303 is provided on the carrying base plate 30, the lower part of the carrying tube 31 is hollow, so the carrying tube 31 will not hit the carrying base plate 30, which greatly increases safety.
[0060] Furthermore, the V-shaped support portion 32 includes a V-shaped rod 321, a third inner spring 322, and a transverse telescopic rod 323. Here, the middle portion of the V-shaped rod 321 is hinged on the bearing base 30. The third inner spring 322 is installed on the bearing base 30 to press against one end of the V-shaped rod 321, and the transverse telescopic rod 323 is installed on the other end of the V-shaped rod 321 and inserted into the connecting hole 312 of the bearing cylinder 31. Here, the transverse telescopic rod 323 passes through the connecting hole 312 and extends into the vertical slide groove 311. A plurality of lower protrusions 276 are also installed at the bottom of the lifting seat 271, so when the lifting seat 271 When moving downward in the carrying tube 31, the lower protrusion 276 moves along the vertical slide groove 311. When the lower protrusion 276 corresponds to the horizontal telescopic rod 323, it means that it has moved into place. At this time, the horizontal telescopic rod 323 also has a supporting effect on the lower protrusion 276 due to its own elastic force; and the V-shaped rod 321 can fix the carrying tube 31 elastically under the action of the third inner spring 322 and its own elastic force, and provide elastic support for the anti-fall carrying mechanism 27, so that the entire temperature sensing module 26 of the structure has an elastic buffering effect on the inner tank 3 and a protective effect on the second temperature sensor.
[0061] In addition, when the inner tank 3 is taken out during normal use, the anti-fall bearing mechanism 27 in the temperature sensing module 26 is restored to its original state under the elastic support of the second inner spring, multiple V-shaped support parts 32 and other structures. In this way, the heat generated by the heating of the bottom coil seat 21 can be dissipated outward through the bearing through hole 303 and the bearing tube 31 in the temperature sensing module 26, which greatly improves the heat dissipation effect and is beneficial to the cooling of the coil body.
[0062] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.
[0063] In the present invention, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.
[0064] Although the embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the description and implementation methods. They can be fully applied to various fields suitable for the present invention. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present invention is not limited to the specific details and illustrations shown and described herein.
Claims
1. An electric rice cooker heated by coil induction, characterized in that include: An electric rice cooker body (100) includes an outer pot body (1), an inner coil pot body (2), and an inner pot (3). The inner coil pot body (2) is arranged in the outer pot body (1) and is electrically connected to a control module (11) on the outer pot body (1). The inner pot (3) is arranged in the inner coil pot body (2). The inner coil pot body (2) is used to heat the inner pot (3). The inner coil pot body (2) includes a bottom coil seat (21) and an inner pot cover (22). A temperature sensing module (26) is arranged in the middle of the bottom coil seat (21). The temperature sensing module (26) is arranged in the middle of the bottom coil seat (21). The temperature sensing module (26) includes an anti-drop bearing mechanism (27), a second temperature sensor (28), and an inner bearing mechanism (29), wherein the inner bearing mechanism (29) is arranged on the pot body base (10) at the bottom of the outer pot body (1) and is located below the bottom coil seat (21), the upper portion of the inner bearing mechanism (29) extends into the fixing hole (241), the anti-drop bearing mechanism (27) is movably arranged in the upper portion of the inner bearing mechanism (29), and the second temperature sensor (28) is arranged in the anti-drop bearing mechanism (27) and is electrically connected to the control module (11); The anti-fall bearing mechanism (27) includes a lifting seat (271), a protective elastic sleeve (272), and a second inner spring. The lifting seat (271) is movably arranged on the upper part of the inner bearing mechanism (29). A limit baffle (273) is arranged in the lifting seat (271). The limit baffle (273) is provided with a sliding hole. The protective elastic sleeve (272) is arranged in the lifting seat (271) and movably penetrates the sliding hole. A conical spring seat (274) is provided at the bottom of the protective elastic sleeve (272). The second inner spring is arranged in the inner bearing mechanism (29) and presses against the conical spring seat (274). A bearing cavity (275) is provided in the protective elastic sleeve (272). The second temperature sensor (28) is arranged in the bearing cavity (275), and the bottom of the second temperature sensor (28) is connected to a wire rod (281). The wire rod (281) is penetrated in the conical spring seat (274).
2. The electric rice cooker according to claim 1, wherein: The bottom coil seat (21) is inside the outer pot body (1), the inner pot cover (22) is arranged on the bottom coil seat (21), the temperature sensing module (26) abuts against and contacts the bottom of the inner pot (3), a plurality of coil baffles (23) are arranged at the bottom of the bottom coil seat (21), a coil body is wound inside the plurality of coil baffles (23), and the coil body, the temperature sensing module (26) and the control module (11) are electrically connected.
3. The electric rice cooker according to claim 2, wherein: A raised portion (24) is provided in the middle of the bottom coil seat (21), a groove ring (25) is provided around the raised portion (24), a fixing hole (241) is provided in the raised portion (24), and the temperature sensing module (26) is provided in the fixing hole (241).
4. The electric rice cooker according to claim 2, wherein: The electric rice cooker body (100) further comprises an upper pot cover (12) and an inner protective ring (13), wherein the upper pot cover (12) is arranged at the upper end of the outer pot body (1), and the inner protective ring (13) is arranged inside the upper pot cover (12) and located above the inner pot cover (22), and the inner protective ring (13) is sleeved on the upper part of the inner pot (3).
5. The electric rice cooker according to claim 1, wherein: The control module (11) comprises an operation panel (111) and a control circuit board. The operation panel (111) is arranged on one side of the outer pot body (1). The control circuit board is arranged in an electric control housing (110) of the outer pot body (1). The electric control housing (110) is arranged on the other side of the outer pot body (1). The operation panel (111) is electrically connected to the inner coil pot body (2) and the control circuit board, respectively.
6. The electric rice cooker according to claim 3, wherein: The temperature sensing module (26) includes a heat-conducting cap (261), a first temperature sensor (262), and a fixed tube (263); the fixed tube (263) is arranged in the fixing hole (241); the first temperature sensor (262) is arranged in the fixed tube (263); the first temperature sensor (262) is electrically connected to the control module (11); the heat-conducting cap (261) is arranged at the upper end of the fixed tube (263); a first inner spring (264) is sleeved on the fixed tube (263); the first inner spring (264) presses against the heat-conducting cap (261), so that the heat-conducting cap (261) presses against and contacts the bottom of the inner tank (3).
7. The electric rice cooker according to claim 1, wherein: The inner bearing mechanism (29) includes a bearing base (30), a bearing tube (31), and a plurality of V-shaped supports (32). The bottom of the bearing base (30) is provided with a plurality of fixed foot plates (302), and the fixed foot plates (302) are provided on the anti-magnetic plate (102) in the pot body base (10). The bearing base (30) is provided with a bearing through hole (303). The plurality of V-shaped supports (32) are evenly distributed on the bearing base (30) and are located around the bearing through hole (303). The bearing tube (31) is connected to the plurality of V-shaped supports (32) and extends into the fixing hole (241). The bearing tube (31) is provided with a plurality of vertical slide grooves (311), and the lifting seat (271) is slidably connected to the vertical slide grooves (311).
8. The electric rice cooker according to claim 7, wherein: The V-shaped support portion (32) includes a V-shaped rod (321), a third inner spring (322), and a transverse telescopic rod (323). The middle portion of the V-shaped rod (321) is hinged on the bearing base plate (30). The third inner spring (322) is arranged on the bearing base plate (30) to press against one end of the V-shaped rod (321). The transverse telescopic rod (323) is arranged on the other end of the V-shaped rod (321) and is inserted into the connecting hole (312) of the bearing cylinder (31). The transverse telescopic rod (323) passes through the connecting hole (312) and extends into the vertical slide groove (311). A plurality of lower protrusions (276) are provided at the bottom of the lifting seat (271), and the lower protrusions (276) correspond to the transverse telescopic rod (323).
Citation Information
Patent Citations
Rice cooker heating device and rice cooker thereof
CN205458154U
Temperature sensor and heating appliance component
CN110833332A
IH electric cooker
CN218044735U