Electric rice cooker and temperature detection method thereof

Abstract

The present invention provides an electric rice cooker comprising a pot body and an inner pot positioned within the pot body, a bracket, a lifting assembly, and a rotating assembly; the bracket being positioned within the pot body; the lifting assembly being positioned within the pot body, the lifting assembly comprising a fixed structure for securing the inner pot body and a sliding device for controlling the lifting and lowering movement of the fixed structure, both of which are connected to the bracket; and a rotating assembly being positioned within the pot body and controlling the rotation of the fixed structure, the rotating assembly being connected to the bracket. The present invention also provides a temperature detection method. The present invention solves the problem of conventional electric rice cookers whereby rice is cooked to a soft center, while the rice in the upper, outer portion is undercooked due to insufficient heat, and the inner pot may scald the user when the user manually removes it.

Description

Technical Field

[0001] The present invention relates to the technical field of kitchen appliances, and in particular to an electric rice cooker and a temperature detection method thereof. Background Art

[0002] An electric rice cooker is a modern cooking appliance that can perform a variety of processes such as steaming, boiling, stewing, simmering, and braising. It can not only cook food, but also keep it warm. When an existing electric rice cooker is heated, bubbles formed at the bottom of the inner pot will move toward the center along the bottom wall of the inner pot. When the liquid in the pot boils, the heat flow brought by the bubbles will gather toward the center, causing the temperature at the center of the inner pot to be higher than the temperature at the side of the inner pot, resulting in the rice being rotten in the center of the bottom wall of the inner pot, while the rice on the sides and top of the sides of the inner pot is half-cooked due to insufficient heat. The Chinese utility model patent with publication number CN204318429U discloses an electric rice cooker, comprising an outer pot with an accommodating cavity, a lid arranged on the outer pot to open and close the cavity, an inner pot arranged in the cavity, and a defoaming device arranged on the opening to cover at least part of the opening. The above rice cooker has the problem that the rice in the center is mushy, while the rice on the upper outer part is half-cooked due to insufficient heat, and the inner pot may scald the user when the user takes it out by hand. Summary of the Invention

[0003] Based on this, in order to solve the problem that the rice cooked by the existing electric rice cooker is rotten in the center, the rice on the upper outer side is half-cooked due to insufficient heat, and the inner pot may burn the user when the user takes it out by hand, the present invention provides an electric rice cooker and a temperature detection method thereof, and its specific technical solution is as follows:

[0004] An electric rice cooker, comprising a pot body and an inner pot located in the pot body, characterized in that it also comprises:

[0005] a bracket, the bracket being located in the pot body;

[0006] A lifting assembly, the lifting assembly being located in the pot body, the lifting assembly comprising a fixing structure for fixing the inner pot and a sliding device for controlling the lifting movement of the fixing structure, the fixing structure and the sliding device being both connected to the bracket;

[0007] A rotating assembly is installed in the pot body and is used to control the rotation of the fixed structure. The rotating assembly is connected to the bracket.

[0008] The above-mentioned electric rice cooker is provided with a fixed structure to fix the inner pot on the sliding device. The sliding device drives the fixed structure to perform lifting movement, and then drives the inner pot to perform lifting movement. After cooking is completed, the inner pot is automatically raised and placed in the external air. The temperature of the inner pot drops to an appropriate range, thereby avoiding burns to the user when picking up the inner pot that has just finished cooking with his hands; a rotating component is also provided to control the rotation of the fixed structure. The rotation of the fixed structure can be controlled during cooking, and then the rotation of the inner pot is controlled. During the rotation, the rice grains and water in the inner pot are re-mixed, thereby solving the problem of the existing electric rice cooker that the rice is cooked in the center and the rice on the outer side is half-cooked due to insufficient heat.

[0009] Furthermore, the rotating assembly includes a mounting seat, a transmission shaft, a rotating frame and a first driving device for controlling the rotation of the rotating frame; the mounting seat is mounted on the pot body, the first driving device is mounted on the mounting seat, the transmission shaft is connected to the output end of the first driving device, the transmission shaft is fixedly connected to the rotating frame, the rotating frame is rotatably connected to the bracket, and the rotating frame is used to control the rotation of the fixed structure.

[0010] Furthermore, the fixing structure includes a main body, a clamping member and a connecting member; the clamping member and the connecting member are both installed on the main body, the clamping member is used to clamp the inner liner, the main body and the clamping member are both connected to the connecting member, the connecting member is connected to the sliding device, and the rotating frame is used to control the rotation of the main body.

[0011] Furthermore, the body is provided with a cavity, the top of the body is provided with an opening, the opening is connected to the cavity, the liner is located in the cavity, the clamping member and one end of the connecting member extend into the cavity, and the other end of the connecting member is connected to the sliding device.

[0012] Furthermore, the outer contours of the main body and the clamping member are both circular, and the clamping member is located above the opening.

[0013] Furthermore, the main body and the clamping member are spaced apart and form a spacing space, the connecting member is located in the spacing space, the main body and the clamping member are both rotatably connected to the connecting member, and one end of the connecting member extending into the cavity is provided with a clamping portion, and the clamping member is clamped with the clamping portion.

[0014] Furthermore, the main body is provided with a limiting portion, and the limiting portion is located in the spacing space and connected to the clamping member.

[0015] Furthermore, the rotating frame is provided with a protrusion, and the main body is provided with a groove matching with the protrusion.

[0016] Furthermore, the sliding device includes a slider and a second driving device for controlling the lifting movement of the slider, the slider is slidably connected to the bracket, the slider is connected to the connecting member, the second driving device is installed on the bracket, and the output end of the second driving device is connected to the slider.

[0017] A temperature detection method applied to the above-mentioned electric rice cooker comprises the following steps:

[0018] Detecting the opening and closing status of the cover in real time to determine the current operating status of the rice cooker;

[0019] The temperature detection method obtains the difference between the temperature data of the center of the bottom of the inner pot and the temperature data of the peripheral side of the bottom of the inner pot when the electric rice cooker is in the cooking state, and determines whether the preset condition is met according to the difference;

[0020] The determining whether a preset condition is met based on the difference includes: when the difference is greater than a preset threshold, controlling the rice cooker to stop working, and controlling the first drive device to start, thereby controlling the inner pot to rotate; when the difference is less than or equal to the preset threshold, turning off the first drive device and controlling the rice cooker to resume working. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention can be further understood from the following description in conjunction with the accompanying drawings. The components in the figures are not necessarily drawn to scale, but rather the emphasis is placed on illustrating the principles of the embodiments. In different views, the same reference numerals designate corresponding parts.

[0022] Figure 1 This is one of the structural diagrams of the electric rice cooker according to one embodiment of the present invention;

[0023] Figure 2 This is a second structural diagram of an electric rice cooker according to an embodiment of the present invention;

[0024] Figure 3 This is a third structural diagram of an electric rice cooker according to an embodiment of the present invention;

[0025] Figure 4 This is a fourth structural diagram of an electric rice cooker according to an embodiment of the present invention;

[0026] Figure 5 It is a flowchart of an electrical temperature detection method according to an embodiment of the present invention.

[0027] Description of reference numerals:

[0028] 1-pot body; 2-inner pot; 3-bracket; 4-fixing structure; 41-main body; 411-limiting part; 42-clamping part; 43-connecting part; 431-clamping part; 44-elastic part; 51-slider; 511-slide rail; 52-second driving device; 6-rotating assembly; 61-mounting seat; 62-transmission shaft; 63-rotating frame; 631-protrusion; 64-first driving device. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with its embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and do not limit the scope of protection of the present invention.

[0030] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly attached to the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of the present invention are for the purpose of describing specific embodiments only and are not intended to limit the present invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0032] The "first" and "second" in the present invention do not represent specific quantities and orders, but are only used to distinguish names.

[0033] like Figures 1 to 4 As shown, an electric rice cooker in one embodiment of the present invention includes a pot body 1 and an inner pot 2 located in the pot body 1, and also includes a bracket 3, a lifting assembly, and a rotating assembly 6; the bracket 3 is located in the pot body 1; the lifting assembly is located in the pot body 1, the lifting assembly includes a fixed structure 4 for fixing the inner pot 2 and a sliding device for controlling the lifting movement of the fixed structure 4, and the fixed structure 4 and the sliding device are both connected to the bracket 3; the rotating assembly 6 is arranged in the pot body 1 and is used to control the rotation of the fixed structure 4, and the rotating assembly 6 is connected to the bracket 3.

[0034] The above-mentioned electric rice cooker is provided with a fixed structure 4 to fix the inner pot 2 on the sliding device. The sliding device drives the fixed structure 4 to perform lifting movement, and then drives the inner pot 2 to perform lifting movement. After cooking is completed, the inner pot 2 automatically rises and is placed in the external air. The temperature of the inner pot 2 drops to an appropriate range, avoiding burns to the user when picking up the inner pot 2 that has just finished cooking with his hands; a rotating component 6 is also provided to control the rotation of the fixed structure 4. When cooking, the rotation of the fixed structure 4 can be controlled, and then the rotation of the inner pot 2 can be controlled. During the rotation, the rice grains and water in the inner pot 2 are re-mixed, thereby solving the problem that the rice cooked by the existing electric rice cooker is rotten in the center, while the rice on the upper outer side is half-cooked due to insufficient heat.

[0035] like Figure 4 As shown, in one embodiment, the rotating assembly 6 includes a mounting base 61, a transmission shaft 62, a rotating frame 63, and a first drive device 64 for controlling the rotation of the rotating frame 63. The mounting base 61 is mounted on the pot body 1, and the first drive device 64 is mounted on the mounting base 61. The transmission shaft 62 is connected to the output end of the first drive device 64, and the transmission shaft 62 is fixedly connected to the rotating frame 63. The rotating frame 63 is rotatably connected to the bracket 3, and the rotating frame 63 is used to control the rotation of the fixed structure 4. In this way, the bracket 3 is fixed to the pot body 1 via the mounting base 61, the first drive device 64 drives the transmission shaft 62 to rotate, and the transmission shaft 62 drives the rotating frame 63 to rotate relative to the bracket 3, thereby controlling the rotation of the fixed structure 4.

[0036] Preferably, the first driving device 64 is a motor, and the output end of the motor is connected to the transmission shaft 62 to control the rotation of the transmission shaft 62.

[0037] Specifically, the fixing structure 4 includes a body 41, a clamping member 42, and a connecting member 43. The clamping member 42 and the connecting member 43 are both mounted on the body 41. The clamping member 42 is used to clamp the inner container 2. The body 41 and the clamping member 42 are both connected to the connecting member 43. The connecting member 43 is connected to the sliding device 64. The rotating frame 63 is used to control the rotation of the body 41. The clamping member 42 is arranged along the contour of the body 41. This increases the contact area between the clamping member 42 and the inner container 2 and enhances the stability of the clamping member 42 and the inner container 2.

[0038] Specifically, the body 41 has a cavity, and the top of the body 41 has an opening that communicates with the cavity. The liner 2 is located in the cavity. One end of the clamping member 42 and the connecting member 43 extend into the cavity, and the other end of the connecting member 43 is connected to the slider 51. The liner 2 is placed in the cavity, with the bottom of the liner 2 abutting against the bottom of the body 41, and the sidewall of the liner 2 abutting against the clamping member 42. In this way, the bottom of the body 41 and the clamping member 42 simultaneously provide support, making it easier to clamp the liner 2.

[0039] Specifically, the outer contours of the body 41 and the clamping member 42 are both circular, and the clamping member 42 is located above the opening. The clamping member 42 is arranged along the circumference of the body 41 and is connected to the body 41.

[0040] Specifically, the fixing structure 4 is also provided with an elastic portion 44 for controlling the tightness of the clamping member 42 and the inner liner 2. The elastic portion 44 is connected to both ends of the clamping member 42. By twisting the elastic portion 44, the clamping member 42 is controlled to be radially tightened or loosened, thereby achieving the fixation or detachment of the inner liner 2 on the main body 41.

[0041] In one embodiment, the body 41 and the clamping member 42 are spaced apart to form a space, and the connecting member 43 is located within the space. Both the body 41 and the clamping member 42 are rotatably connected to the connecting member 43. The end of the connecting member 43 extending into the cavity is provided with a snap-fit ​​portion 431, and the clamping member 42 snaps into the snap-fit ​​portion 431. In this way, the connecting member 43 passes through the space and can rotate relative to the body 41. The snap-fit ​​portion 431 snaps into the clamping member 42, preventing the connecting member 43 from falling off the body 41.

[0042] Specifically, the connecting members 43 are located on both sides of the body 41 and are symmetrically arranged, thereby enhancing the balance and stability of the connection between the fixing structure 4 and the slider 51.

[0043] Specifically, the body 41 is provided with a stopper 411, which is located within the spacing space and connected to the clamping member 42. The clamping member 42 and the body 41 are both connected to the stopper 411. A clearance is reserved between the stopper 411 and the connecting member 43 for the connecting member 43 to rotate relative to the body 41. This does not affect the relative rotation of the connecting member 43 and the body 41, while still providing a position-limiting function.

[0044] like Figure 4 As shown, in one embodiment, the rotating frame 63 has a protrusion 631, and the body 41 has a groove that cooperates with the protrusion 631. In this way, when the rice cooker enters the cooking mode, the body 41 moves downward to a position that cooperates with the rotating frame 63, the protrusion 631 engages with the groove, and the first driving device 64 is activated to control the rotating frame 63 to rotate, driving the body 41 to rotate.

[0045] like Figure 4 As shown, in one embodiment, the sliding device includes a slider 51 and a second driving device 52 for controlling the lifting movement of the slider 51, the slider 51 is slidably connected to the bracket 3, the slider 51 is connected to the connecting member 43, the second driving device 52 is installed on the bracket 3, and the output end of the second driving device 52 is connected to the slider 51.

[0046] Specifically, the slider 51 is provided with a slide rail 511, the slide rail 511 is slidably connected to the bracket 3, and the slider 51 is slidably connected to the inner wall of the pot body 1. In this way, the slider 51 can be raised and lowered on the bracket 3 through the slide rail 511, and then can be raised and lowered in the pot body 1. At the same time, the inner wall of the pot body 1 provides support force to the slider 51.

[0047] Preferably, the second driving device 52 is a hydraulic cylinder, and the output end of the second driving device 52 is connected to the slider 51. The slider 51 is lifted and lowered on the bracket 3 through the slide rail 511, thereby driving the fixed structure 4 connected to the slider 51 to lift and lower.

[0048] As shown in the figure, in one embodiment, a temperature detection method applied to the above-mentioned rice cooker includes the following steps:

[0049] Step S1: Detecting the opening and closing status of the lid in real time to determine the current operating status of the rice cooker.

[0050] When the lid is in the closed state, it is determined that the rice cooker is in the cooking state, and then it is determined whether the temperature of the inner pot 2 changes.

[0051] Step S2: Specifically, the temperature detection method includes a temperature detection device, which is arranged at the bottom of the pot body 1, close to the bottom of the inner pot 2. When the rice cooker is in the cooking state, the temperature detection device obtains the difference between the temperature data of the center of the bottom of the inner pot 2 and the temperature data of the peripheral side of the bottom of the inner pot 2, and determines whether the preset conditions are met based on the difference, and controls the state of the rotating component 6 based on this difference.

[0052] Step S3: To prevent the heat flow brought by the bubbles from gathering toward the center after the liquid in the pot boils, causing the temperature at the center of the inner pot 2 to be higher than the temperature on the side of the inner pot 2, when the difference is greater than a preset threshold, the temperature detection device controls the first drive device 64 to start, and then controls the inner pot 2 to rotate, so as to mix the liquid in the inner pot 2 with the rice grains, and adjust the temperature at the center of the bottom of the inner pot 2 and the temperature around the bottom of the inner pot 2 to reduce the difference.

[0053] Step S4: After the difference is less than the preset threshold, the temperature detection device controls the first driving device 64 to stop running and controls the rice cooker to work again.

[0054] The technical features of the above embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0055] The above embodiments merely illustrate several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the patent for this invention shall be determined by the appended claims.

Claims

1. An electric rice cooker comprising a pot body and an inner pot located in the pot body, characterized in that: Also includes: a bracket, the bracket being located in the pot body; A lifting assembly, the lifting assembly being located in the pot body, the lifting assembly comprising a fixing structure for fixing the inner pot and a sliding device for controlling the lifting movement of the fixing structure, the fixing structure and the sliding device being both connected to the bracket; a rotating assembly, the rotating assembly being installed in the pot body and used to control the rotation of the fixed structure, the rotating assembly being connected to the bracket; The rotating assembly includes a mounting seat, a transmission shaft, a rotating frame, and a first driving device for controlling the rotation of the rotating frame; The mounting seat is mounted on the pot body, the first driving device is mounted on the mounting seat, the transmission shaft is connected to the output end of the first driving device, the transmission shaft is fixedly connected to the rotating frame, the rotating frame is rotatably connected to the bracket, and the rotating frame is used to control the rotation of the fixed structure; The fixing structure includes a body, a clamping member, and a connecting member; the clamping member and the connecting member are both mounted on the body, the clamping member is used to clamp the liner, the body and the clamping member are both connected to the connecting member, the connecting member is connected to the sliding device, and the rotating frame is used to control the rotation of the body; The body is provided with a cavity, the top of the body is provided with an opening, the opening is communicated with the cavity, the liner is located in the cavity, one end of the clamping member and the connecting member extends into the cavity, and the other end of the connecting member is connected to the sliding device.

2. The electric rice cooker according to claim 1, characterized in that The outer contours of the main body and the clamping member are both circular, and the clamping member is located above the opening.

3. The electric rice cooker according to claim 2, characterized in that The main body and the clamping member are spaced apart and form a spacing space, the connecting member is located in the spacing space, the main body and the clamping member are both rotatably connected to the connecting member, and one end of the connecting member extending into the cavity is provided with a clamping portion, and the clamping member is clamped with the clamping portion.

4. The electric rice cooker according to claim 3, characterized in that The main body is provided with a limiting portion, which is located in the spacing space and connected to the clamping member.

5. The electric rice cooker according to claim 1, characterized in that The rotating frame is provided with a protrusion, and the main body is provided with a groove matched with the protrusion.

6. The electric rice cooker according to claim 1, characterized in that The sliding device includes a slider and a second driving device for controlling the lifting movement of the slider. The slider is slidably connected to the bracket, and the slider is connected to the connecting member. The second driving device is installed on the bracket, and the output end of the second driving device is connected to the slider.

7. A temperature detection method for the electric rice cooker according to any one of claims 1 to 6, characterized in that: The following steps are involved: Detecting the opening and closing status of the pot body in real time to determine the current operating status of the rice cooker; The temperature detection method obtains the difference between the temperature data of the center of the bottom of the inner pot and the temperature data of the peripheral side of the bottom of the inner pot when the electric rice cooker is in the cooking state, and determines whether the preset condition is met according to the difference; The determining whether a preset condition is satisfied according to the difference includes: when the difference is greater than a preset threshold, controlling the rice cooker to stop working and simultaneously controlling the first driving device to start, thereby controlling the inner pot to rotate; When the difference is less than or equal to a preset threshold, the first driving device is turned off and the electric rice cooker is controlled to resume operation.

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