WO2021017387A1

WO2021017387A1 - Electric rice cooker

Info

Publication number: WO2021017387A1
Application number: PCT/CN2019/128063
Authority: WO
Inventors: 卢正邦; 陈亮; 张源智; 邓志宏; 曾国辉; 康津; 高塬贵; 肖麟; 吴学鹏
Original assignee: 珠海格力电器股份有限公司
Priority date: 2019-07-26
Filing date: 2019-12-24
Publication date: 2021-02-04
Also published as: CN110301807A

Abstract

An electric rice cooker, comprising a cooker body (100), the cooker body (100) comprises a housing (10) and a shielding mechanism (20), and a heat dissipation hole (11) is provided on the housing (10); and the shielding mechanism (20) is provided within the housing (10), the shielding mechanism (20) comprises a shielding member (21), the shielding member (21) is movably provided at the heat dissipation hole (11), and the shielding member (21) has a shielding position for shielding the heat dissipation hole (11) and an avoiding position for avoiding the heat dissipation hole (11). The present invention solves the problem that the heat dissipation hole (11) of an existing electric rice cooker is always in communication with the outside, causing insects or dust to enter the cooker body (100) easily, rendering a health and safety hazard.

Description

Rice cooker

Technical field

This application relates to the technical field of kitchen appliances, and specifically to an electric rice cooker. This application claims the priority of the patent application filed to the State Intellectual Property Office of China on July 26, 2019 with the application number 201910684255.7 and the invention title "electric rice cooker".

Background technique

As a kind of household appliances, rice cookers are more and more favored by consumers for their convenient use and fast cooking characteristics.

During the cooking process of the rice cooker, in order to avoid excessive heat in the cooker body from damaging the chip of the control unit in the cooker, heat dissipation holes are usually provided on the shell of the cooker body. However, the heat dissipation holes of the existing rice cooker are always connected to the outside world , That is, regardless of whether the rice cooker is working or not, the heat dissipation hole is always connected to the outside world. In this way, some small insects and dust can easily enter the body of the cooker from the heat dissipation hole on the shell, which not only affects the health of the user, but also reduces the user’s experience. It is easy to affect the electric circuit inside the rice cooker, making the rice cooker have certain safety risks.

Summary of the invention

The main purpose of this application is to provide an electric rice cooker to solve the problem that the heat dissipation hole of the electric rice cooker in the prior art is always connected to the outside, causing insects or dust to easily enter the body of the cooker, which not only affects the health of the user, but also reduces the user’s good experience. Moreover, it is easy to affect the electric circuit in the electric rice cooker, so that the electric rice cooker has certain safety risks.

In order to achieve the above object, the present application provides an electric rice cooker, including a cooker body, the cooker body includes a shell and a shielding mechanism, wherein the shell is provided with a heat dissipation hole; the shielding mechanism is arranged in the shell, and the shielding mechanism includes a shielding member. It is movably arranged at the heat dissipation hole, and the shield has a blocking position for blocking the heat dissipation hole and a avoiding position for avoiding the heat dissipation hole.

Further, the shield can move between the shielding position and the avoiding position. The shielding mechanism also includes a control board and a temperature sensor. The temperature sensor is used to obtain the temperature in the housing and feed it back to the control board. The control board controls the shielding according to the received temperature information. The position of the parts to adjust the opening area of the cooling hole.

Further, the shielding mechanism further includes a motor, which is electrically connected with the control board and drives the shielding member to rotate.

Further, the shielding mechanism further includes a transmission assembly, the motor is connected to the shielding member through the transmission assembly, the transmission assembly includes: a first transmission rod, the first end of the first transmission rod is connected to the driving end of the motor; The second end of the transmission rod is connected with the first transmission gear; the second transmission gear, the second transmission gear meshes with the first transmission gear; the second transmission rod, the first end of the second transmission rod is connected with the second transmission gear, The second ends of the two transmission rods are connected with the shielding member to drive the shielding member to rotate.

Further, the first transmission gear and the second transmission gear are bevel gears that mesh with each other, and the first transmission rod extends in a horizontal direction, and the second transmission rod extends in a vertical direction.

Further, the heat dissipation hole is provided on the bottom surface of the shell, the pot body further includes a support frame, the support frame is arranged on the bottom surface of the shell, and the motor is installed on the support frame.

Further, the shield includes a plurality of blades, the plurality of blades are connected and have a central connection point, the plurality of blades are distributed at intervals around the central connection point, there are a plurality of heat dissipation holes, and the plurality of heat dissipation holes are distributed at intervals around the circumference, and the plurality of blades The multiple heat dissipation holes are shielded one by one.

Further, the plurality of blades and the plurality of heat dissipation holes are all arranged at equal intervals.

Further, the connection position between the second end of the second transmission rod and the shield is located at the central connection point.

Further, the central connection point is located above the center position of the bottom surface of the housing, and the centers of the plurality of heat dissipation holes are located at the center of the bottom surface of the housing.

Further, the electric rice cooker also includes a cooker cover, the cooker cover is arranged on the cooker body, the cooker body also includes an outer pot, a heating plate and an inner pot, the outer pot is arranged in the shell, and the heating plate is arranged in the outer pot and located at the bottom of the outer pot , The inner pot is arranged in the outer pot and supported on the heating plate, and the shielding mechanism is arranged between the outer pot and the bottom surface of the shell.

Applying the technical solution of the present application, by providing a shielding mechanism including a shielding member in the housing, and movably setting the shielding member at the heat dissipation hole, and at the same time, the shielding member has a shielding position for shielding the heat dissipation hole and a avoiding position for avoiding the heat dissipation hole, In this way, during the cooking operation of the rice cooker, the shield can be adjusted to avoid the heat dissipation hole, so that the heat dissipation hole communicates with the outside, which is beneficial to the heat in the cooker body can be dispersed to the outside of the cooker in time, and the temperature inside the cooker is prevented from being too high. Therefore, the reliability of the rice cooker is ensured. When the rice cooker is not in operation, the shield can be controlled to be adjusted to the shielding position that shields the heat dissipation hole, so as to block the heat dissipation hole and prevent insects and dust from entering the cooker body through the heat dissipation hole. It ensures the health of the user, improves the user's good impression of the use experience of the rice cooker, and ensures that the normal operation of the electrical components in the rice cooker is not affected, and the working stability of the rice cooker is ensured.

Description of the drawings

The drawings of the specification forming a part of the application are used to provide a further understanding of the application, and the exemplary embodiments and descriptions of the application are used to explain the application, and do not constitute an improper limitation of the application. In the attached picture:

Figure 1 shows a schematic diagram of the internal structure of an electric rice cooker with an inner pot according to an optional embodiment of the present application;

Figure 2 shows a schematic diagram of the internal structure of the rice cooker in Figure 1 when the covering member of the covering mechanism of the rice cooker is in the covering position;

FIG. 3 shows a schematic diagram of the internal structure of the rice cooker when the covering member of the covering mechanism of the electric rice cooker in FIG. 1 moves from the covering position to the avoiding position;

4 shows a schematic diagram of the structure at the bottom position of the shell of the rice cooker in FIG. 1 where the heat dissipation holes are opened;

5 shows a schematic diagram of the state when the shielding member of the shielding mechanism of the electric rice cooker shields the heat dissipation hole at the bottom position of the housing in FIG. 4;

FIG. 6 shows a schematic diagram of a state when the shielding member in FIG. 5 blocks a part of the heat dissipation hole.

Among them, the above drawings include the following reference signs:

100. Pot body; 10. Shell; 11. radiating hole; 20. Shielding mechanism; 21. Shield; 22. Control board; 28. Temperature sensor; 23. Motor; 24. First transmission rod; 25. First transmission Gear; 26, second transmission gear; 27, second transmission rod; 30, support frame; 211, blades; 200, pot cover; 40, outer pot; 50, heating plate.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative, and in no way serves as any restriction on the application and its application or use. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of this application.

In order to solve the problem that the heat dissipation hole of the electric rice cooker in the prior art is always connected to the outside, causing insects or dust to easily enter the body of the cooker, which not only affects the user's health, reduces the user's good experience, but also easily affects the circuit in the rice cooker, making the rice cooker exist For certain potential safety hazards, this application provides an electric rice cooker. As shown in FIG. 3, the electric rice cooker includes a cooker body 100. The cooker body 100 includes a housing 10 and a shielding mechanism 20. The housing 10 is provided with a heat dissipation hole 11; The mechanism 20 is arranged in the housing 10, and the shielding mechanism 20 includes a shielding member 21, which is movably disposed at the heat dissipation hole 11, and the shielding member 21 has a shielding position for shielding the heat dissipation hole 11 and an escape position for avoiding the heat dissipation hole 11.

By providing a shielding mechanism 20 including a shielding member 21 in the housing 10, and movably setting the shielding member 21 at the heat dissipation hole 11, the shielding member 21 has a shielding position for shielding the heat dissipation hole 11 and an escape position for avoiding the heat dissipation hole 11 In this way, during the cooking operation of the rice cooker, the shield 21 can be adjusted to avoid the heat dissipation hole 11, so that the heat dissipation hole 11 communicates with the outside, which is beneficial for the heat in the cooker body 100 to be dispersed out of the cooker body 100 in time. The temperature in the cooker body 100 is too high, thereby ensuring the operating reliability of the rice cooker, and when the rice cooker is not in operation, the shielding member 21 can be controlled to be adjusted to the shielding position that shields the heat dissipation hole 11 to block the heat dissipation hole 11 It prevents insects and dust from entering the cooker body 100 from the heat dissipation hole 11, ensures the user’s health, improves the user’s good impression of the rice cooker, and ensures that the normal operation of the electrical components in the rice cooker will not be affected. The working stability of the rice cooker.

As shown in Figure 1, the shield 21 can move between the shielding position and the avoiding position. The shielding mechanism 20 also includes a control board 22 and a temperature sensor 28. The temperature sensor 28 is used to obtain the temperature in the housing 10 and feed it back to the control board 22. The control board 22 controls the position of the shield 21 according to the received temperature information to adjust the opening area of the heat dissipation hole 11. In this way, it is convenient for the electric rice cooker to adjust the opening area of the heat dissipation hole 11 in real time according to the temperature in the casing 10, thereby realizing the intelligent control of the electric rice cooker.

Specifically, the opening area of the heat dissipation hole 11 increases with the increase of the temperature in the casing 10, or the opening area of the heat dissipation hole 11 decreases with the decrease of the temperature in the casing 10. In this way, the heat dissipation can be reasonably controlled. The size of the opening area of the hole 11 can effectively prevent the electrical components from being burned out due to excessive temperature in the housing 10, and effectively prolong the service life of the electrical components. In addition, it can also prevent the heat dissipation hole 11 from being fully opened for a long time, effectively preventing Insects or dust from the outside enter the housing 10 from the heat dissipation hole 11, ensuring the health of the user, improving the user's preference for the use of the rice cooker, and ensuring the safety and working stability of the rice cooker.

In order to realize automatic control of the shielding member 21, optionally, the shielding mechanism 20 further includes a motor 23, which is electrically connected to the control board 22 and drives the shielding member 21 to rotate.

It should be noted that, in an optional embodiment of the present application that is not shown, considering that the overall structure of the shielding mechanism 20 is simple, the power transmission is effective, the cost is low, and it can occupy a small space, the drive of the motor 23 The end is directly connected with the shield 21 to drive the shield 21 to rotate.

Of course, in the illustrated optional embodiment of the present application, as shown in FIGS. 2 and 3, the shielding mechanism 20 further includes a transmission assembly, the motor 23 is connected to the shield 21 through the transmission assembly, and the transmission assembly includes a first transmission rod 24, The first transmission gear 25, the second transmission gear 26 and the second transmission rod 27. The first end of the first transmission rod 24 is connected to the driving end of the motor 23, and the second end of the first transmission rod 24 is connected to the first transmission gear 25. Connected, the second transmission gear 26 meshes with the first transmission gear 25, the first end of the second transmission rod 27 is connected with the second transmission gear 26, and the second end of the second transmission rod 27 is connected with the shield 21 to drive the shield Piece 21 rotates. In this way, during the cooking process of the rice cooker, the temperature sensor 28 acquires the temperature in the housing 10 and feeds it back to the control board 22. The control board 22 controls the action of the motor 23 according to the received temperature information, and the motor 23 drives the first transmission rod 24 to rotate to drive the first The transmission gear 25 rotates, the first transmission gear 25 drives the second transmission gear 26 to rotate, and then drives the second transmission rod 27 to rotate, and finally drives the shield 21 to rotate to adjust the opening area of the heat dissipation hole 11.

It should be noted that in the present application, the gear transmission structure is adopted to ensure that the shielding member 21 can be effectively controlled to move. In addition, the shielding mechanism 20 of the present application has fewer wiring lines, and only needs to be electrically connected to the motor 23 and the control board 22, thereby ensuring that the shielding member 21 at the bottom of the housing 10 does not interfere with the wiring during the rotation, thereby improving the use of the rice cooker safety.

As shown in FIGS. 1 to 3, the first transmission gear 25 and the second transmission gear 26 are bevel gears that mesh with each other, and the first transmission rod 24 extends in the horizontal direction, and the second transmission rod 27 extends in the vertical direction. In this way, the bevel gear transmission ratio is constant, ensuring the stability of the transmission between the first transmission gear 25 and the second transmission gear 26, and has the advantage of high transmission efficiency compared to other types of gear transmission. In addition, the bevel gear transmission has a compact structure , Can transmit the movement between the two intersecting shafts at a close distance, reduce the occupied space in the rice cooker, ensure the overall structure of the rice cooker is compact, and improve the appearance beauty of the rice cooker.

As shown in FIGS. 1 to 4, the heat dissipation hole 11 is opened on the bottom surface of the housing 10, the pot body 100 further includes a support frame 30, the support frame 30 is arranged on the bottom surface of the housing 10, and the motor 23 is installed on the support frame 30. In this way, the arrangement of the support frame 30 improves the installation stability of the motor 23 and ensures that the motor 23 stably drives the shield 21 to rotate.

As shown in Figures 2 to 6, the shield 21 includes a plurality of blades 211, the plurality of blades 211 are connected and have a central connection point, the plurality of blades 211 are distributed around the central connection point at intervals, and the heat dissipation holes 11 are multiple, multiple The heat dissipation holes 11 are distributed at intervals around the circumference, and the plurality of blades 211 shield the plurality of heat dissipation holes 11 one by one. In this way, under the premise of ensuring a certain heat dissipation area, a plurality of heat dissipation holes 11 are provided, so that the opening area of each heat dissipation hole 11 is small, so that each blade 211 can be set to a smaller structural size, and the plurality of blades 211 only A small angle needs to be rotated synchronously to adjust the overall opening area of the plurality of heat dissipation holes 11.

As shown in FIG. 2 to FIG. 6, the plurality of blades 211 and the plurality of heat dissipation holes 11 are all arranged at equal intervals. In this way, it is ensured that the opening area of each heat dissipation hole 11 is equal, that is, during the rotation of the blade 211, each heat dissipation hole 11 opens an equal opening area at the same time, ensuring that the heat in the housing 10 can be evenly dissipated; When the plurality of blades 211 rotate to the blocking position at the same time, each blade 211 simultaneously shields the corresponding heat dissipation hole 11 to ensure that the plurality of heat dissipation holes 11 are simultaneously blocked.

As shown in Figures 5 and 6, the connection position between the second end of the second transmission rod 27 and the shield 21 is located at the central connection point. In this way, it is ensured that the transmission torque of each blade 211 to the second transmission rod 27 is uniform, so that all the blades 211 rotate in the same horizontal plane, and the damage of multiple blades 211 due to uneven force is avoided.

It should be noted that in the present application, the central connection point is located above the center of the bottom surface of the housing 10, and the centers of the plurality of heat dissipation holes 11 are located at the center of the bottom surface of the housing 10. In this way, a plurality of heat dissipation holes 11 are arranged at the center of the bottom surface of the housing 10, which is not only beneficial to the appearance of the rice cooker, but also can plan the flow path of the hot air flow in the housing 10 so that the hot air flow diverges from the center of the bottom surface of the housing 10.

As shown in Figure 1, the rice cooker further includes a cooker lid 200, which is covered on the cooker body 100. The cooker body 100 also includes an outer pot 40, a heating plate 50 and an inner pot. The outer pot 40 is arranged in the outer shell 10 to generate heat. The tray 50 is arranged in the outer pot 40 and located at the bottom of the outer pot 40, the inner pot is arranged in the outer pot 40 and supported on the heating plate 50, and the shielding mechanism 20 is arranged between the outer pot 40 and the bottom surface of the housing 10. In this way, during the use of the rice cooker, the heating plate 50 heats the food in the inner pot. Since the heating plate 50 is located at the bottom of the outer pot 40, the heating plate 50 transfers heat to the outer pot 40 through heat transfer, and the temperature of the outer pot 40 gradually Increase, heat is dissipated into the housing 10 and the temperature inside it gradually rises. The temperature in the housing 10 is sensed by the temperature sensor 28 and fed back to the control board 22. The control board 22 controls the shielding member 21 according to the received temperature information. Position to increase the opening area of the heat dissipation hole 11 to achieve the effect of cooling.

It should be noted that the terms used here are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should also be understood that when the terms "comprising" and/or "including" are used in this specification, they indicate There are features, steps, operations, devices, components, and/or combinations thereof.

Unless specifically stated otherwise, the relative arrangement of components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present application. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the drawings are not drawn in accordance with actual proportional relationships. The technologies, methods, and equipment known to those of ordinary skill in the relevant fields may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be regarded as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiment may have different values. It should be noted that similar reference numerals and letters indicate similar items in the following drawings, so once a certain item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

For ease of description, spatially relative terms such as "above", "above", "above", "above", etc. can be used here to describe as shown in the figure. Shows the spatial positional relationship between one device or feature and other devices or features. It should be understood that the spatially relative terms are intended to encompass different orientations in use or operation other than the orientation of the device described in the figure. For example, if the device in the figure is inverted, then the device described as "above the other device or structure" or "above the other device or structure" will then be positioned as "below the other device or structure" or "on Under other devices or structures". Thus, the exemplary term "above" can include both orientations "above" and "below". The device can also be positioned in other different ways (rotated by 90 degrees or in other orientations), and the relative description of the space used here is explained accordingly.

It should be noted that the terms used here are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should also be understood that when the terms "comprising" and/or "including" are used in this specification, they indicate There are features, steps, works, devices, components, and/or combinations thereof.

It should be noted that the terms "first" and "second" in the description and claims of the application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific sequence or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in a sequence other than those illustrated or described herein.

The above descriptions are only preferred embodiments of the application, and are not used to limit the application. For those skilled in the art, the application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of this application shall be included in the protection scope of this application.

Claims

An electric rice cooker, characterized by comprising a pot body (100), the pot body (100) comprising:

A housing (10), the housing (10) is provided with a heat dissipation hole (11);

The shielding mechanism (20), the shielding mechanism (20) is arranged in the housing (10), the shielding mechanism (20) includes a shielding member (21), and the shielding member (21) is movably arranged in the housing At the heat dissipation hole (11), and the shielding member (21) has a blocking position for blocking the heat dissipation hole (11) and an avoiding position for avoiding the heat dissipation hole (11).
The rice cooker according to claim 1, characterized in that the shielding member (21) can move between the shielding position and the avoiding position, and the shielding mechanism (20) further comprises a control panel (22) and A temperature sensor (28), the temperature sensor (28) is used to obtain the temperature in the housing (10) and feed it back to the control board (22), and the control board (22) controls the station based on the received temperature information The position of the shielding member (21) is used to adjust the opening area of the heat dissipation hole (11).
The rice cooker according to claim 2, wherein the shielding mechanism (20) further comprises a motor (23), the motor (23) is electrically connected to the control board (22) and drives the shielding member (21) Rotation.
The rice cooker according to claim 3, wherein the shielding mechanism (20) further comprises a transmission assembly, the motor (23) is connected to the shielding member (21) through the transmission assembly, and the transmission assembly include:

A first transmission rod (24), the first end of the first transmission rod (24) is connected with the drive end of the motor (23);

A first transmission gear (25), the second end of the first transmission rod (24) is connected with the first transmission gear (25);

A second transmission gear (26), the second transmission gear (26) meshes with the first transmission gear (25);

The second transmission rod (27), the first end of the second transmission rod (27) is connected to the second transmission gear (26), and the second end of the second transmission rod (27) is connected to the shield The member (21) is connected to drive the shielding member (21) to rotate.
The rice cooker according to claim 4, characterized in that, the first transmission gear (25) and the second transmission gear (26) are bevel gears that mesh with each other, and the first transmission rod (24) extends along Extending in the horizontal direction, the second transmission rod (27) extends in the vertical direction.
The rice cooker according to claim 4, characterized in that the heat dissipation hole (11) is opened on the bottom surface of the casing (10), the pot body (100) further comprises a support frame (30), the support The frame (30) is arranged on the bottom surface of the housing (10), and the motor (23) is installed on the supporting frame (30).
The rice cooker according to claim 4, characterized in that the shielding member (21) comprises a plurality of blades (211), the plurality of blades (211) are connected and have a central connection point, and the plurality of blades ( 211) are distributed at intervals around the central connection point, the heat dissipation holes (11) are multiple, and the heat dissipation holes (11) are distributed at intervals around the circumference, and a plurality of the blades (211) shield one by one A plurality of said heat dissipation holes (11).
The rice cooker according to claim 7, characterized in that, the plurality of blades (211) and the plurality of heat dissipation holes (11) are all arranged at equal intervals.
The electric rice cooker according to claim 7, characterized in that the connection position between the second end of the second transmission rod (27) and the shield (21) is located at the central connection point.
The rice cooker according to claim 7, characterized in that the central connection point is located above the center position of the bottom surface of the casing (10), and the center of the plurality of heat dissipation holes (11) is located in the casing ( 10) The center of the bottom surface.
The electric rice cooker according to claim 1, characterized in that the electric rice cooker further comprises a cooker cover (200), the cooker cover (200) is arranged on the cooker body (100), the cooker body (100) It also includes an outer pot (40), a heating plate (50) and an inner pot, the outer pot (40) is arranged in the outer shell (10), and the heating plate (50) is arranged on the outer pot (40) And located at the bottom of the outer pot (40), the inner pot is arranged in the outer pot (40) and supported on the heating plate (50), and the shielding mechanism (20) is arranged on the Between the outer pot (40) and the bottom surface of the shell (10).