Electric cooker with toppling protection function

Abstract

The utility model relates to an electric cooker with a toppling protection function, which comprises a cooker body, an inner container and a heating element capable of heating the inner container are arranged in the cooker body, the electric cooker further comprises a control unit, and the control unit is electrically connected with the heating element to form a control circuit. The electric cooker is characterized in that the cooker body is further internally provided with a toppling power-off mechanism used for disconnecting the control circuit when the electric cooker is in a toppling state, a power-off keeping mechanism capable of keeping the control circuit in a disconnected state after the toppling power-off mechanism disconnects the control circuit, and a reset mechanism capable of relieving the power-off keeping state and enabling the control circuit to be powered on again. The electric rice cooker has the advantages that due to the arrangement of the toppling power-off mechanism which cuts off the control circuit when the electric rice cooker is in a toppling state, when the electric rice cooker topples, the toppling power-off mechanism cuts off the control circuit, so that power supply of the heating element is cut off, and the electric rice cooker is prevented from being damaged due to continuous heating.

Description

Technical Field

[0001] The utility model relates to the technical field of household appliances, in particular to an electric rice cooker with a tipping protection function. Background Art

[0002] As an indispensable cooking appliance in the kitchen, the rice cooker converts electrical energy into thermal energy through the built-in heating element to heat the rice in the inner pot until the rice is cooked.

[0003] However, during actual use, rice cookers often tip over due to various reasons, such as children playing or accidental collisions. Existing rice cookers often fail to cut off the power supply in time after tipping over, causing the heating element to continue heating the inner pot, which can easily damage the rice cooker. In addition, if a rice cooker topples while cooking food, the liquid in the inner pot may overflow. Once this liquid flows into the interior of the rice cooker while it is powered on, it may cause a short circuit, leading to safety issues such as fire. Although some new rice cookers are equipped with a tip-over power-off function, their circuit boards remain connected after being straightened, posing a safety hazard. Utility Model Content

[0004] The purpose of the utility model is to provide an electric rice cooker with a tipping protection function, thereby solving the above problems.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: an electric rice cooker with a tipping protection function, comprising a cooker body, an inner pot provided in the cooker body, and a heating element capable of heating the inner pot; the electric rice cooker further comprising a control unit, the control unit being electrically connected to the heating element to form a control circuit; the cooker body further comprising a tipping power-off mechanism for disconnecting the control circuit when the electric rice cooker is in a tipping state; a power-off holding mechanism for keeping the control circuit in a disconnected state after the tipping power-off mechanism disconnects the control circuit; and a reset mechanism for releasing the power-off holding state and reenergizing the control circuit.

[0006] As a further optimization scheme of the present invention, the tipping power-off mechanism includes a micro switch, and a gravity ball is provided above the micro switch, which can press the micro switch downward when the rice cooker is in normal use. A guide member is provided between the gravity ball and the micro switch, which can guide the gravity ball to move when the rice cooker is in a tipping state, thereby separating the gravity ball from the micro switch.

[0007] As a further optimization solution of the present invention, the guide member is in an inverted cone shape, and a pressing opening is provided at the lower portion of the guide member for the gravity ball to press the micro switch downward.

[0008] As a further optimization solution of the present invention, the power-off holding mechanism includes a magnetic attraction component which is arranged above the gravity ball and can magnetically fix the gravity ball when the rice cooker is in a tilted state.

[0009] As a further optimization solution of the present invention, the gravity ball is made of ferromagnetic material.

[0010] As a further optimization solution of the present invention, the reset mechanism includes a driving mechanism that can drive the magnetic member to move upward, and a limiting member arranged between the guide member and the magnetic member and capable of limiting the gravity ball from moving upward following the magnetic member.

[0011] As a further optimization solution of the present invention, the limiting member is a limiting flange provided on the guide member, and the limiting flange is formed around a limiting opening for the gravity ball to protrude upward to abut against the magnetic member, and the diameter of the limiting opening is smaller than the diameter of the gravity ball.

[0012] As a further optimization solution of the present invention, the driving mechanism includes a connecting rod rotatably connected to the pot body, the connecting rod has a rotating end capable of rotating downward, and a driven end capable of rotating upward in response to the movement of the rotating end, and the magnetic attraction part is connected to the driven end.

[0013] As a further optimization solution of the present invention, the magnetic attraction component is connected to a reset component that presses the magnetic attraction component downward.

[0014] As a further optimization solution of the present invention, a pressing hole for pressing the rotating end is opened on the side wall of the pot body.

[0015] Compared with the prior art, the utility model has the following advantages:

[0016] 1. By providing a tipping power-off mechanism that disconnects the control circuit when the electric cooker is in a tipping state, when the electric cooker tips over, the tipping power-off mechanism disconnects the control circuit, thereby cutting off the power supply to the heating element, thereby avoiding damage to the electric cooker due to continuous heating;

[0017] 2. By providing a power-off holding mechanism capable of keeping the control circuit in a disconnected state after the power-off mechanism is tilted and disconnected, and a reset mechanism capable of releasing the power-off holding state and reenergizing the control circuit, the user can wipe off the spilled liquid and then reconnect the control circuit through the reset mechanism, thereby ensuring that the rice cooker can be put back into operation in a safe condition and preventing potential safety hazards caused by automatic power restoration after the rice cooker is righted. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The specific embodiments of the present invention are further described in detail below with reference to the accompanying drawings, wherein:

[0019] Figure 1It is a three-dimensional schematic diagram of the utility model;

[0020] Figure 2 It is a three-dimensional schematic diagram of the cooperation of the tilting power-off mechanism, the power-off holding mechanism, and the reset mechanism in the utility model;

[0021] Figure 3 It is an exploded diagram of the tilting power-off mechanism, the power-off holding mechanism, and the reset mechanism in the utility model;

[0022] Figure 4 It is a cross-sectional schematic diagram of the utility model;

[0023] Figure 5 It is a partial cross-sectional schematic diagram of the electric rice cooker of the present invention when it is in normal use;

[0024] Figure 6 It is a partial cross-sectional schematic diagram of the electric rice cooker in the present invention when it is in a tilted state;

[0025] Figure 7 It is a partial cross-sectional schematic diagram of the electric rice cooker after the overturned state is straightened in the present invention;

[0026] Figure 8 It is a partial cross-sectional schematic diagram of the reset mechanism when used in the present invention. DETAILED DESCRIPTION

[0027] The following describes the embodiments of the present invention in detail with reference to the accompanying drawings.

[0028] like Figures 1 to 8 As shown, the utility model discloses an electric rice cooker with a tipping protection function, comprising a cooker body 1, wherein an inner pot 11 is provided in the cooker body 1, and a heating element 12 capable of heating the inner pot 11, the electric rice cooker further comprising a control unit, wherein the control unit is electrically connected to the heating element 12 to form a control circuit, and the cooker body 1 is further provided with a tipping power-off mechanism 2 for disconnecting the control circuit when the electric rice cooker is in a tipping state, a power-off holding mechanism 3 capable of keeping the control circuit in a disconnected state after the tipping power-off mechanism 2 disconnects the control circuit, and a reset mechanism 4 capable of releasing the power-off holding state and reenergizing the control circuit.

[0029] The pot body 1 is the main component of the electric rice cooker. The inner pot 11 inside the pot can hold food and water, and the food in the inner pot 11 is heated by the heating element 12, thereby achieving cooking of the food. In the embodiment, the control unit includes a control circuit board connected to the power supply, which is electrically connected to the heating element 12 to form a control circuit. The control unit can also be a device such as a programmable logic controller. The tipping power-off mechanism 2 can disconnect the control circuit when the electric rice cooker tips over, thereby stopping heating. The power-off holding mechanism 3 can keep the control circuit in a disconnected state after the tipping power-off mechanism 2 disconnects the control circuit, thereby preventing safety hazards caused by automatic power restoration after the user straightens the electric rice cooker. The reset mechanism 4 can release the power-off holding state and re-energize the control circuit, thereby restoring normal use of the electric rice cooker.

[0030] By providing a tipping power-off mechanism 2 that disconnects the control circuit when the rice cooker is in a tipping state, when the rice cooker tips over, the tipping power-off mechanism 2 disconnects the control circuit, thereby cutting off the power supply to the heating element 12, thereby avoiding damage to the rice cooker due to continuous heating. By providing a power-off holding mechanism 3 that can keep the control circuit in the disconnected state after the tipping power-off mechanism 2 disconnects the control circuit, and a reset mechanism 4 that can release the power-off holding state and re-energize the control circuit, the user can wipe off spilled liquid and then re-connect the control circuit through the reset mechanism 4, ensuring that the rice cooker can be put into operation again in a safe state, thereby preventing safety hazards caused by automatic power restoration after the rice cooker is straightened.

[0031] The tipping power-off mechanism 2 includes a micro switch 21, and a gravity ball 22 is provided above the micro switch 21, which can press the micro switch 21 downward when the rice cooker is in normal use. A guide member 23 is provided between the gravity ball 22 and the micro switch 21, which can guide the gravity ball 22 to move when the rice cooker is in a tipping state, thereby separating the gravity ball 22 from the micro switch 21.

[0032] The micro switch 21 can change the state of its internal contacts when subjected to sufficient external force, thereby connecting or disconnecting the circuit. In the embodiment, when the gravity ball 22 presses the micro switch 21 downward, the micro switch 21 is in a closed state and the control circuit is energized; when the gravity ball 22 leaves the micro switch 21, the micro switch 21 is disconnected and the control circuit is de-energized. The structure of the micro switch 21 has been disclosed in the prior art. For example, the Chinese patent document with publication number CN116013718A discloses a micro switch whose structure can realize the function of the micro switch 21 in this patent, so its structure will not be elaborated in detail here. The gravity ball 22 is a freely moving spherical object that can respond to the tipping of the rice cooker. The guide member 23 can guide the movement of the gravity ball 22. In the embodiment, the guide member 23 is arranged around the micro switch 21 and contacts the gravity ball 22. It ensures that the gravity ball 22 can be guided to separate from the micro switch 21 when the rice cooker tips over.

[0033] The guide member 23 is in an inverted cone shape, and a pressing opening 231 is formed at the lower portion of the guide member 23 for the gravity ball 22 to press the micro switch 21 downward.

[0034] The guide member 23 has a pressing opening 231 at its lower portion for the gravity ball 22 to press downward against the microswitch 21. When the rice cooker is in normal use, the gravity ball 22 is located at the bottom of the guide member 23 due to gravity and presses downward against the microswitch 21 through the pressing opening 231. The inverted conical shape of the guide member 23 allows the gravity ball 22 to move along its inverted conical sidewalls and separate from the microswitch 21 if the rice cooker falls over, resulting in a simple structure.

[0035] The tilt power-off mechanism 2 may be implemented in other ways, such as by sensing the tilt angle of the device through a lever mechanism, triggering a power-off when a set threshold is reached; or by detecting the position change of the device through a gyroscope sensor or a photoelectric sensor, and implementing tilt power-off.

[0036] The power-off holding mechanism 3 includes a magnetic attraction member 31 which is arranged above the gravity ball 22 and can magnetically fix the gravity ball 22 when the electric rice cooker is in a tilted state.

[0037] In the embodiment, the magnetic member 31 is a component made of a magnet. When the gravity ball 22 is located at the lower part of the guide member 23, the magnetic attraction force of the magnetic member 31 on the gravity ball 22 is less than the gravity of the gravity ball 22, so that the gravity ball 22 presses the micro switch 21 downward. When the rice cooker falls over, the gravity ball 22 approaches the magnetic member 31 and is then magnetically attracted. After the rice cooker is straightened, the gravity of the gravity ball 22 is less than the magnetic attraction force of the magnetic member 31 on the gravity ball 22, so that the gravity ball 22 is separated from the micro switch 21. By setting the magnetic member 31, the gravity ball 22 is magnetically fixed when the rice cooker tilts or falls over, ensuring that the control circuit remains disconnected before the rice cooker is straightened to prevent accidental restoration of power supply. While the cost is low, the structure is simple and easy to maintain, and the reliability is high.

[0038] The gravity ball 22 is made of ferromagnetic material.

[0039] The gravity ball 22 is made of ferromagnetic material, so that the gravity ball 22 has a high magnetic permeability and can interact well with the magnetic component 31, ensuring that the gravity ball 22 can be magnetically fixed by the magnetic component 31 when the rice cooker falls over.

[0040] There are other implementation methods of the power-off holding mechanism 3. For example, by setting a mechanical locking device composed of a locking pin and an elastic member, when the rice cooker tips over, the mechanical locking device can lock the position of the gravity ball 22 and limit its pressure on the micro switch 21. The gravity ball 22 can also be locked when the rice cooker tips over by an electric control structure with an additional power supply control, such as an electromagnet.

[0041] The reset mechanism 4 includes a driving mechanism 41 capable of driving the magnetic member 31 to move upward, and a limiting member 42 provided between the guide member 23 and the magnetic member 31 and capable of limiting the gravity ball 22 from moving upward following the magnetic member 31 .

[0042] The driving mechanism 41 can drive the magnetic member 31 upward through a mechanical connection or transmission mechanism, causing the magnetic member 31 to separate from the gravity ball 22, thereby releasing the magnetic fixation. The limiter 42 can restrict the gravity ball 22 from moving upward with the magnetic member 31, ensuring that the gravity ball 22 can return to the position pressing against the micro switch 21 after the magnetic member 31 moves upward.

[0043] The limiting member 42 is a limiting flange 421 provided on the guide member 23 , and the limiting flange 421 surrounds and forms a limiting opening 422 for the gravity ball 22 to protrude upward to abut against the magnetic member 31 . The diameter of the limiting opening 422 is smaller than the diameter of the gravity ball 22 .

[0044] When the driving mechanism 41 drives the magnetic part 31 to move upward, the limit opening 422, which has a diameter smaller than the gravity ball 22, prevents the gravity ball 22 from moving upward with the magnetic part 31. As the magnetic part 31 rises, the magnetic force acting on the gravity ball 22 is reduced or eliminated. After the rice cooker is straightened, the gravity ball 22 returns to the bottom of the guide part 23 due to gravity, and presses the micro switch 21 downward through the pressing opening 231, so that the micro switch 21 is closed, and the control circuit is powered on again.

[0045] In the embodiment, the stopper 42 and the guide member 23 are integrally formed, which reduces the number of assembly steps, reduces the manufacturing cost, and improves the structural stability. The stopper 42 and the guide member 23 can also be provided separately for easy maintenance.

[0046] The driving mechanism 41 includes a connecting rod 411 rotatably connected to the pot body 1 , the connecting rod 411 has a rotating end 4111 that can rotate downward, and a driven end 4112 that can rotate upward in response to the movement of the rotating end 4111 , and the magnetic member 31 is connected to the driven end 4112 .

[0047] The connecting rod 411 is rotatably connected to the pot body 1, and has a rotating end 4111 that can be operated by the user to rotate downward, and a driven end 4112 that can rotate upward in response to the movement of the rotating end 4111. The magnetic component 31 is connected to the driven end 4112, so that when the rotating end 4111 rotates downward, the driven end 4112 responds to the rotating end 4111 and drives the magnetic component 31 to rotate upward. The structure is simple and the cost is low.

[0048] The magnetic member 31 is connected to a reset member 5 that presses the magnetic member 31 downward.

[0049] In the embodiment, the reset member 5 is a reset spring. The reset member 5 can press the magnetic member 31 downward to return it to its initial position, thereby completing the reset.

[0050] In the embodiment, a support member capable of supporting the driven end 4112 is further provided in the pot body 1 , and the driven end 4112 is supported by the support member to limit the position of the magnetic element 31 .

[0051] The side wall of the pot body 1 is provided with a pressing hole 13 for pressing the rotating end 4111 .

[0052] The user presses the rotating end 4111 through the pressing opening 13 , which has a simple structure and is easy to operate.

Claims

1. An electric rice cooker with a tipping protection function, characterized in that: The electric rice cooker comprises a rice cooker body (1), wherein an inner pot (11) is provided in the rice cooker body (1), and a heating element (12) capable of heating the inner pot (11). The electric rice cooker further comprises a control unit, wherein the control unit is electrically connected to the heating element (12) to form a control circuit. The rice cooker body (1) is further provided with a tilting power-off mechanism (2) for disconnecting the control circuit when the rice cooker is in a tilting state, a power-off holding mechanism (3) capable of keeping the control circuit in a disconnected state after the tilting power-off mechanism (2) disconnects the control circuit, and a reset mechanism (4) capable of releasing the power-off holding state and reenergizing the control circuit.

2. The electric rice cooker with a tipping protection function according to claim 1, characterized in that: The tipping power-off mechanism (2) comprises a micro switch (21); a gravity ball (22) is provided above the micro switch (21) and is capable of pressing the micro switch (21) downward when the electric rice cooker is in a normal use state; and a guide member (23) is provided between the gravity ball (22) and the micro switch (21) and is capable of guiding the gravity ball (22) to move when the electric rice cooker is in a tipping state, thereby separating the gravity ball (22) from the micro switch (21).

3. The electric rice cooker with a tipping protection function according to claim 2, characterized in that: The guide member (23) is in an inverted cone shape, and a pressing opening (231) is provided at the lower portion of the guide member (23) for the gravity ball (22) to press the micro switch (21) downward.

4. The electric rice cooker with a tipping protection function according to claim 3, characterized in that: The power-off holding mechanism (3) comprises a magnetic attraction member (31) which is arranged above the gravity ball (22) and can magnetically fix the gravity ball (22) when the electric rice cooker is in a tilted state.

5. The electric rice cooker with a tipping protection function according to claim 4, characterized in that: The gravity ball (22) is made of ferromagnetic material.

6. The electric rice cooker with a tipping protection function according to claim 5, characterized in that: The reset mechanism (4) comprises a driving mechanism (41) capable of driving the magnetic member (31) to move upward, and a limiting member (42) disposed between the guide member (23) and the magnetic member (31) and capable of limiting the gravity ball (22) from moving upward following the magnetic member (31).

7. The electric rice cooker with a tipping protection function according to claim 6, characterized in that: The limiting member (42) is a limiting flange (421) provided on the guide member (23), and the limiting flange (421) is formed around a limiting opening (422) for the gravity ball (22) to protrude upward to abut against the magnetic member (31), and the diameter of the limiting opening (422) is smaller than the diameter of the gravity ball (22).

8. The electric rice cooker with a tipping protection function according to claim 7, characterized in that: The driving mechanism (41) comprises a connecting rod (411) rotatably connected to the pot body (1), the connecting rod (411) having a rotating end (4111) capable of rotating downward, and a driven end (4112) capable of rotating upward in response to the movement of the rotating end (4111), and the magnetic attraction member (31) is connected to the driven end (4112).

9. The electric rice cooker with a tipping protection function according to claim 8, characterized in that: The magnetic attraction member (31) is connected to a reset member (5) that presses the magnetic attraction member (31) downward.

10. The electric rice cooker with a tipping protection function according to claim 8, characterized in that: The side wall of the pot body (1) is provided with a pressing opening (13) for pressing the rotating end (4111).

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