CN111184448A

CN111184448A - Interior pot detection device and pot body subassembly and cooking utensil that have it

Info

Publication number: CN111184448A
Application number: CN201811268695.6A
Authority: CN
Inventors: 彭锋; 杨兴国; 高万宝; 莫荣康
Original assignee: Foshan Shunde Midea Electrical Heating Appliances Manufacturing Co Ltd
Current assignee: Foshan Shunde Midea Electrical Heating Appliances Manufacturing Co Ltd
Priority date: 2018-10-29
Filing date: 2018-10-29
Publication date: 2020-05-22

Abstract

The invention discloses an inner pot detection device, a pot body assembly with the same and a cooking utensil, wherein the inner pot detection device comprises: a switching part including an insulating member and a conductive member; a moving part movable between a first position and a second position relative to the switching part, the moving part having a first current branch and a second current branch, the first current branch having a resistor disposed thereon; when the moving part is located at the first position, the second current branch is switched on through the conductive piece; when the moving part is located at the second position, the second current branch is disconnected by the insulating part. The inner pot detection device provided by the embodiment of the invention can effectively detect whether the inner pot is placed in the outer pot under the power-on state, and has the advantages of higher safety performance and lower manufacturing cost.

Description

Interior pot detection device and pot body subassembly and cooking utensil that have it

Technical Field

The invention relates to the field of kitchen appliances, in particular to an inner pot detection device, a pot body assembly with the inner pot detection device and a cooking appliance with the inner pot detection device.

Background

Cooking utensil such as electric pressure cooker or electric rice cooker among the correlation technique, the user can forget sometimes and place interior pot and just begin the circular telegram culinary art in place, because of lack the detection device who whether places interior pot, cooking utensil still can continue to heat to make the inside heat that continuously produces of cooking utensil so that the fuse fusing in the cooking utensil even breaks out the conflagration, so this kind of cooking utensil has great potential safety hazard, and user experience nature is relatively poor.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides the inner pot detection device which can detect whether the inner pot is placed correctly or not and has higher safety performance.

The inner pot detection device according to the embodiment of the first aspect of the invention comprises: a switching part including an insulating member and a conductive member; a moving part movable between a first position and a second position relative to the switching part, the moving part having a first current branch and a second current branch, the first current branch having a resistor disposed thereon; when the moving part is located at the first position, the second current branch is switched on through the conductive piece; when the moving part is located at the second position, the second current branch is disconnected by the insulating part.

The inner pot detection device provided by the embodiment of the invention can effectively detect whether the inner pot is placed in the outer pot under the power-on state, and has the advantages of higher safety performance and lower manufacturing cost.

In addition, the inner pot detection device according to the embodiment of the first aspect of the present invention may further have the following additional technical features:

according to some embodiments of the invention, the inner pot detection device further comprises: and the inner elastic piece is arranged between the switching part and the moving part and is used for normally pushing the moving part to the first position.

According to some embodiments of the invention, the moving part comprises: the first conducting plate and the second conducting plate are respectively matched with the switching part in a movable mode, the resistor is provided with a first resistor pin and a second resistor pin, the first resistor pin is connected with the first conducting plate, and the second resistor pin is connected with the second conducting plate; wherein one part of the first conductive sheet, one part of the second conductive sheet, the first resistance pin and the second resistance pin form the first current branch, and the other part of the first conductive sheet and the other part of the second conductive sheet form the second current branch.

According to some embodiments of the present invention, the insulating member is configured in a column shape extending in an up-down direction, the conductive member is provided at an upper end of the insulating member and has a cross-sectional area larger than that of the insulating member, and the first conductive sheet and the second conductive sheet are fitted to the insulating member so as to be movable up and down, respectively; when the moving part is located at the first position, the first conducting sheet and the second conducting sheet are respectively contacted with the conducting pieces; when the moving part is located at the second position, the first conducting strip and the second conducting strip are separated from the conducting pieces respectively.

According to some embodiments of the invention, the first conductive plate has a first clasping claw, the second conductive plate has a second clasping claw, and the first clasping claw and the second clasping claw encircle the periphery of the insulator and are separated from each other.

According to some embodiments of the invention, the first holding claw is provided with a first conductive protrusion, and the second holding claw is provided with a second conductive protrusion; when the moving part is located at the first position, the first conductive protrusion and the second conductive protrusion are respectively contacted with the lower surface of the conductive piece; when the moving part is located at the second position, the first conductive protrusion and the second conductive protrusion are respectively separated from the lower surface of the conductive piece.

According to some embodiments of the present invention, the first conductive plate has a first conductive pin and a first mounting groove, the second conductive plate has a second conductive pin and a second mounting groove, the first resistive pin is fitted in the first mounting groove and connected to the first conductive pin, and the second resistive pin is fitted in the second mounting groove and connected to the second conductive pin.

According to some embodiments of the invention, the first conductive pin is bent downward and parallel to a central axis of the switching portion; the second conductive pin is bent downwards and is parallel to the central axis of the switching part.

According to some embodiments of the invention, the conductive member comprises: the upper surface of the conductive part is provided with an abutting groove, and the lower end of the inner elastic part is matched with the abutting groove; the connecting part is connected to the lower surface of the conductive part, a mounting hole is formed in the upper end face of the insulating part, and the connecting part is inserted into the mounting hole.

According to some embodiments of the invention, the moving part further comprises: the resistor, the first conducting strip and the second conducting strip are respectively arranged on the fixed seat and keep relative positions through the fixed seat, the inner elastic piece is arranged in the fixed seat, and two ends of the inner elastic piece respectively abut against the fixed seat and the conducting piece.

According to some embodiments of the invention, the fixing base has a mounting groove formed by a downward depression of an upper surface of the fixing base, and the resistor is mounted in the mounting groove.

According to some embodiments of the present invention, the fixing base has an accommodating cavity, the accommodating cavity is open downward, the inner elastic member is disposed in the accommodating cavity, an upper end of the inner elastic member abuts against a top wall of the accommodating cavity, and a lower end of the inner elastic member abuts against an upper surface of the conductive member.

According to some embodiments of the invention, the moving part further comprises: the limiting piece is sleeved on the outer side of the fixed seat and provided with a guide hole, and the switching part is movably arranged in the guide hole in a penetrating manner; the top cover is assembled at the top of the limiting part, and the upper end of the fixing seat is abutted to the top cover and the lower end of the fixing seat is abutted to the bottom wall of the limiting part.

According to some embodiments of the invention, the moving part further comprises: the sleeve is sleeved on the outer side of the limiting part, the upper end of the sleeve, the upper end of the limiting part and the top cover are assembled with each other, and the sleeve is suitable for being movably installed on a carrier of the inner pot detection device.

According to some embodiments of the invention, the inner pot detection device further comprises: the outer elastic piece is sleeved on the outer side of the sleeve, one end of the outer elastic piece abuts against the top cover, and the other end of the outer elastic piece abuts against the carrier.

According to some embodiments of the invention, the moving portion is spaced apart from the carrier by a predetermined distance only when the moving portion is under the elastic force of the outer elastic member.

According to some embodiments of the invention, the predetermined distance is greater than or equal to 1 mm.

According to some embodiments of the invention, the maximum displacement of the moving part is greater than the predetermined distance.

According to some embodiments of the invention, the lower end of the sleeve is provided with a limiting column adapted to pass through a limiting hole on the carrier, and the limiting column is provided with a separation preventing part located below the carrier.

According to some embodiments of the invention, the resistor is a thermistor.

According to the second aspect of the embodiment of the invention, the pan body component comprises: an outer pot; according to a first aspect of the invention, the inner pot detection device is arranged on the outer pot; an inner pot disposed in the outer pot and pressing the moving part from the first position to the second position.

According to the pot body assembly provided by the embodiment of the second aspect of the invention, the inner pot detection device provided by the embodiment of the first aspect of the invention has the advantages of higher safety performance, good user experience and the like.

A cooking appliance according to an embodiment of the third aspect of the invention comprises a pan body assembly according to an embodiment of the second aspect of the invention.

According to the cooking utensil of the embodiment of the third aspect of the invention, by utilizing the pot body assembly of the embodiment of the second aspect of the invention, the advantages of high safety performance, good user experience and the like are achieved.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural diagram of a moving part of an inner pot detecting device according to an embodiment of the invention at a first position;

FIG. 2 is a schematic structural diagram of a moving part of an inner pot detecting device according to an embodiment of the present invention at a second position;

FIG. 3 is an exploded view of an inner pot detection device according to an embodiment of the present invention;

FIG. 4 is a top view of an inner pot detection device according to an embodiment of the present invention;

FIG. 5 is a cross-sectional view taken along line A-A of FIG. 4;

FIG. 6 is a schematic view of the inner pot assembly with the movable part in the first position when the inner pot is not in contact with the inner pot detection device according to the embodiment of the present invention;

FIG. 7 is a partial enlarged view at B in FIG. 6;

fig. 8 is a schematic view when the inner pot of the inner pot assembly presses down the moving part by a predetermined distance H according to an embodiment of the present invention;

FIG. 9 is an enlarged view of a portion of FIG. 8 at C;

FIG. 10 is a schematic view of an inner pan of the inner pan assembly pressing the moving part down to a second position according to an embodiment of the present invention;

fig. 11 is a partial enlarged view at D in fig. 10.

Reference numerals:

a pan body assembly 1000; an inner pot detection device 100; an inner pan 200;

a switching unit (10); a conductive member 11; a conductive portion 111; the abutting groove 111 a; a connecting portion 112; an axial positioning groove 112 a; an insulating member 12; mounting holes 121; an axial positioning boss 122;

a moving section 20; a resistor 21; a first resistance pin 21 a; a second resistance pin 21 b;

a first conductive sheet 22; a first holding claw 221; a first conductive bump 222; a first conductive pin 223; a first fitting groove 224; a second conductive sheet 23; a second holding claw 231; a second conductive bump 232; a second conductive pin 233; a second fitting groove 234;

a fixed seat 24; a mounting groove 241; a housing cavity 242; a stopper 25; a backplane 251; the guide hole 251 a; a first extension 252; a second extension 253; a mounting rim 254; a top cover 26; a sleeve 27; a limit post 271; the retaining portion 272;

an inner elastic member 30; an outer elastic member 40;

a carrier 50; a mounting recess 51; the stopper hole 511.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "central," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," and the like are used in the indicated orientations and positional relationships based on the drawings for ease of description and simplicity of description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

An inner pot detecting device 100 according to an embodiment of the present invention will be described with reference to fig. 1 to 11.

As shown in fig. 1 and 2, an inner pot detecting device 100 according to an embodiment of the first aspect of the present invention includes: a switching unit 10 and a moving unit 20.

The switching part 10 includes an insulating member 12 and a conductive member 11, the moving part 20 is movable between a first position and a second position relative to the switching part 10, the moving part 20 has a first current branch and a second current branch, a resistor 21 is disposed on the first current branch, the second current branch is connected through the conductive member 11 when the moving part 20 is located at the first position, and the second current branch is disconnected by the insulating member 12 when the moving part 20 is located at the second position.

Specifically, the inner pot detecting device 100 is adapted to be installed below the inner pot 200, and the moving part 20 is driven to move from the first position to the second position by the pressure action of the inner pot 200 on the inner pot detecting device 100. The conductive member 11 is connected to the insulating member 12, and both ends of the resistor 21 are connected to the closed circuit, as shown in fig. 1, when the moving portion 20 is at the first position relative to the switching portion 10, both ends of the resistor 21 are in contact with the conductive member 11, and at this time, the second current branch is connected to the closed circuit, because the resistance value of the resistor 21 is much greater than that of the conductive member 11, the resistor 21 is in a short-circuit state, that is, the first current branch is short-circuited; the moving part 20 moves relative to the switching part 10 to disconnect the two ends of the resistor 21 from the conductive member 11 until moving to the second position as shown in fig. 2, during which the second current branch is disconnected from the closed circuit and the first current branch is closed. That is, when the moving part 20 is located at the first position, the first current branch is short-circuited and the second current branch is closed; when the moving portion 20 is located at the second position, the first current branch is turned on and the second current branch is turned off.

The operation of the inner pot detecting device 100 according to the embodiment of the present invention will be described with reference to fig. 1 and 2. When the inner pot 200 is not placed in the cooking utensil, the inner pot detection device 100 is not affected by the pressure of the inner pot 200, as shown in fig. 1, the moving part 20 is located at the first position, two ends of the resistor 21 are in contact with the conductive member 11 to make the second current branch connected to the closed circuit, and the resistor 21 is disconnected, that is, the current flowing through the first current branch approaches zero; when the inner pot 200 is placed in the cooking utensil, the inner pot detection device 100 is under the pressure of the inner pot 200, and the moving part 20 moves from the first position to the second position shown in fig. 2, so that the two ends of the resistor 21 are disconnected from the conductive member 11, and the second current branch is disconnected and the first current branch is connected. Therefore, whether the inner pot 200 is placed in the cooking utensil can be judged by detecting whether the conductive member 11 is connected into a closed circuit or by detecting the value of the current flowing through the resistor 21.

According to the inner pot detection device 100 of the embodiment of the invention, the moving part 20 moves between the first position and the second position relative to the switching part 10 to enable the resistor 21 to be short-circuited or to be in a path, so as to detect whether the inner pot 200 is placed in the cooking appliance, when a user is not operated properly or forgets to place the inner pot 200 in the cooking appliance to conduct power-on cooking on the cooking appliance, the inner pot detection device 100 can effectively detect that the user misses the inner pot 200, and take measures of stopping heating or reporting an error, so that the phenomenon that a fuse is fused or even a fire disaster is caused by continuous heating due to the fact that the inner pot 200 is missed is avoided, the safety performance is improved, and the user experience is good. The inner pot detection device 100 of the embodiment of the invention has a simple structure, can monitor the inner pot 200 without arranging detection elements such as a photoelectric sensor and the like, and has low manufacturing cost.

Therefore, the inner pot detection device 100 according to the embodiment of the invention can effectively detect whether the inner pot 200 is placed in the outer pot in the power-on state, and has better safety performance and lower manufacturing cost.

In some embodiments of the present invention, as shown in fig. 3 and 5, the inner pot detecting device 100 further includes an inner elastic member 30, and the inner elastic member 30 is disposed between the switching part 10 and the moving part 20 for normally pushing the moving part 20 to the first position.

Specifically, the inner elastic member 30 is compressed between the switching part 10 and the moving part 20, the inner elastic member 30 pushes the moving part 20 to the first position, when the inner pot 200 is placed on the inner pot detection device 100, the spring is further compressed, and the moving part 20 moves to the second position under the pressure; when the inner pot 200 is taken out of the cooking appliance, i.e., the inner pot detecting device 100 is not under the pressure of the inner pot 200, the moving part 20 is pushed to the first position by the elastic force of the inner elastic member 30. Therefore, the inner elastic member 30 can restore the moving part 20, and when the inner pot 200 is taken out, the moving part 20 is always located at the first position to keep the inner pot detecting device 100 in the seated state.

In some embodiments of the present invention, as shown in fig. 1 and 2, the moving part 20 includes a first conductive sheet 22 and a second conductive sheet 23. The first conductive plate 22 and the second conductive plate 23 are respectively movably matched with the switch 10, the resistor 21 has a first resistor pin 21a and a second resistor pin 21b, the first resistor pin 21a is connected with the first conductive plate 22, the second resistor pin 21b is connected with the second conductive plate 23, wherein a part of the first conductive plate 22, a part of the second conductive plate 23, the first resistor pin 21a and the second resistor pin 21b form a first current branch, and the other part of the first conductive plate 22 and the other part of the second conductive plate 23 form a second current branch. The first current branch is always connected to the closed circuit, and the second current branch is connected to the closed circuit only when the moving part 20 is located at the first position.

It should be noted that the first conductive plate 22 and the second conductive plate 23 are respectively connected to two ends of the resistor 21, and the first conductive plate 22, the second conductive plate 23 and the resistor 21 move as a whole relative to the switch 10. A part of the first conductive plate 22 is a part of the first conductive plate 22 connected to the first resistance pin 21a, and a part of the second conductive plate 23 is a part of the second conductive plate 23 connected to the second resistance pin 21 b; the other part of the first conductive sheet 22 is the part of the first conductive sheet 22 contacting the conductive member 11, and the other part of the second conductive sheet 23 is the part of the second conductive sheet 23 contacting the conductive member 11.

Alternatively, with continued reference to the embodiment shown in fig. 1 and 2, the insulating member 12 is configured as a column extending in the up-down direction, the conductive member 11 is disposed at the upper end of the insulating member 12 and has a cross-sectional area larger than that of the insulating member 12, the first conductive sheet 22 and the second conductive sheet 23 are respectively fitted to the insulating member 12 in a vertically movable manner, the first conductive sheet 22 and the second conductive sheet 23 are respectively in contact with the conductive member 11 when the moving portion 20 is located at the first position, and the first conductive sheet 22 and the second conductive sheet 23 are respectively separated from the conductive member 11 when the moving portion 20 is located at the second position.

Specifically, the first conducting strip 22 and the second conducting strip 23 are disposed around the outside of the insulating member 12 and can move up and down along a direction parallel to the central axis of the insulating member 12, the cross-sectional area of the conducting member 11 is larger than that of the insulating member 12, and the cross-sectional shape of the conducting member 11 is configured as a shape through which the first conducting strip 22 and the second conducting strip 23 cannot pass, that is, when the resistor 21 moves to a maximum distance relative to the switching part 10, the first conducting strip 22 and the second conducting strip 23 stop against the lower surface of the conducting member 11, so that the moving part 20 can be limited, and the moving part 20 is normally pushed to the first position by the inner elastic member 30 and cannot be separated from the first position.

According to some specific examples of the present invention, as shown in fig. 1 and 2, the conductive member 11 includes a conductive portion 111 and a connection portion 112. The upper surface of the conductive portion 111 is provided with an abutting groove 111a, the lower end of the inner elastic element 30 is fitted in the abutting groove 111a, the connecting portion 112 is connected to the lower surface of the conductive portion 111, the upper end surface of the insulating element 12 is provided with a mounting hole 121, and the connecting portion 112 is inserted into the mounting hole 121.

Specifically, the upper surface of the conductive portion 111 is provided with a downward recessed abutting groove 111a, the lower end of the inner elastic member 30 abuts against the bottom wall of the abutting groove 111a, the connecting portion 112 is configured as a columnar structure and connected to the center of the lower surface of the conductive member 11, the upper end surface of the insulating member 12 is configured with a downward extending mounting hole 121, the connecting portion 112 is adapted to extend into the mounting hole 121 to be connected with the connecting portion 112, preferably, as shown in fig. 3 and 5, the side surface of the connecting portion 112 is configured with an axial positioning groove 112a, the axial positioning groove 112a is formed by recessing the side surface of the connecting portion 112 in the direction of the central axis of the connecting portion 112, and the axial positioning groove 112a extends in the circumferential direction of the connecting portion 112, the side wall of the mounting hole 121 is provided with an axial positioning protrusion 122 engaged with the axial positioning groove 112a, thereby, the positioning effect of the connecting portion 112, the connecting portion 112 can be prevented from coming off the insulating member 12. Of course, in other embodiments of the present invention, the connecting portion 112 and the mounting hole 121 may be connected by interference fit or glue.

Alternatively, as shown in fig. 1 to 3, the first conductive sheet 22 has a first clasping claw 221, the second conductive sheet 23 has a second clasping claw 231, and the first clasping claw 221 and the second clasping claw 231 embrace around the outer periphery of the insulator 12 and are separated from each other. Specifically, the first holding claw 221 and the second holding claw 231 are always located below the conductive portion 111, edges of the first holding claw 221 and the second holding claw 231 facing the insulator 12 are configured to be arc-shaped, and when the moving portion 20 is located at the first position, both the first holding claw 221 and the second holding claw 231 are in contact with the lower surface of the conductive portion 111. Therefore, the conductive member 11 has a good abutting effect on the first conductive plate 22 and the second conductive plate 23, so as to limit the moving part 20 and keep the moving part 20 at the first position.

Further, as shown in fig. 3, the first holding claw 221 is provided with a first conductive protrusion 222, the second holding claw 231 is provided with a second conductive protrusion 232, when the moving portion 20 is located at the first position, the first conductive protrusion 222 and the second conductive protrusion 232 are respectively in contact with the lower surface of the conductive member 11, and when the moving portion 20 is located at the second position, the first conductive protrusion 222 and the second conductive protrusion 232 are respectively separated from the lower surface of the conductive member 11. Specifically, the first conductive sheet 22 and the second conductive sheet 23 contact the lower surface of the conductive portion 111 through the first conductive protrusion 222 and the second conductive protrusion 232, the first conductive protrusions 222 are two and protrude upward from the upper surface of the first holding claw 221, and the second conductive protrusions 232 are two and protrude upward from the upper surface of the second holding claw 231, so that the first conductive sheet 22 and the second conductive sheet 23 can be ensured to contact the conductive member 11 well when the moving portion 20 is located at the first position. It should be noted that two of each of the first conductive bumps 222 and the second conductive bumps 232 is only one embodiment of the present invention, and the present invention does not limit the specific number of the first conductive bumps 222 and the second conductive bumps 232.

In some specific examples of the present invention, as shown in fig. 1 and 2, the first conductive plate 22 has a first conductive pin and a first fitting groove 224, the second conductive plate 23 has a second conductive pin 233 and a second fitting groove 234, the first resistance pin 21a is fitted in the first fitting groove 224 and connected to the first conductive pin, and the second resistance pin 21b is fitted in the second fitting groove 234 and connected to the second conductive pin 233. Specifically, the first conductive plate 22 and the second conductive plate 23 are symmetrically arranged about the central axis of the resistor 21, the first conductive pin is bent toward a side away from the resistor 21 to define a first assembling groove 224 on the first conductive plate 22, the second conductive pin 233 is bent toward a side away from the resistor 21 to define a second assembling groove 234 on the second conductive plate 23, the first resistor pin 21a extends into the first assembling groove 224 to be connected with the first conductive pin, and the second resistor pin 21b extends into the second assembling groove 234 to be connected with the second conductive pin 233.

Further, the first conductive pin is bent downward and is parallel to the central axis of the switch 10, and the second conductive pin 233 is bent downward and is parallel to the central axis of the switch 10. Specifically, the first conductive pin and the second conductive pin 233 are respectively bent downward in a direction away from the resistor 21, in the vertical direction, the height of the upper edge of the first conductive pin is not higher than the height of the upper edge of the first conductive plate 22, the height of the lower edge of the first conductive pin is not lower than the height of the lower edge of the first conductive plate 22, the height of the upper edge of the second conductive pin 233 is higher than the height of the upper edge of the second conductive plate 23, and the height of the lower edge of the second conductive pin 233 is not lower than the height of the lower edge of the second conductive plate 23, so that the space occupied by the first conductive pin and the second conductive pin 233 is small, and the structural layout is reasonable.

Preferably, the first resistance pin 21a and the first conductive pin and the first resistance pin 21a and the second conductive pin 233 may be connected by welding, and the first resistance pin 21a and the second resistance pin 21b are respectively connected with the positive electrode and the negative electrode of the closed circuit through wires, so that the connection between the resistance pin 21 and the conductive sheet is convenient, and the connection effect is good.

According to some embodiments of the present invention, as shown in fig. 3, the moving part 20 further includes a fixed seat 24. The resistor 21, the first conducting strip 22 and the second conducting strip 23 are respectively mounted on the fixing base 24 and keep relative positions through the fixing base 24, the inner elastic element 30 is disposed in the fixing base 24, and two ends of the inner elastic element respectively abut against the fixing base 24 and the conducting element 11.

Specifically, the fixing base 24 is provided with a first slot (not shown in the figure) and a second slot (not shown in the figure) which penetrate through the fixing base 24 in the up-down direction, the first slot and the second slot are symmetrically arranged about the central axis of the fixing base 24, the first conducting strip 22 extends into the first slot from the lower side of the fixing base 24, the first conducting pin is bent downward and attached to the side wall of the fixing base 24, the second conducting strip 23 extends into the second slot from the lower side of the fixing base 24, the second conducting pin 233 is bent downward and attached to the side wall of the fixing base 24, the upper surface of the first holding claw 221 and the upper surface of the second holding claw 231 are both attached to the lower end face of the fixing base 24, and the resistor 21 is fixed on the upper side of the fixing base 24.

Alternatively, as shown in fig. 5, the fixing base 24 has a mounting groove 241, the mounting groove 241 is formed by downwardly recessing the upper surface of the fixing base 24, and the resistor 21 is mounted in the mounting groove 241. Specifically, at least a portion of the resistor 21 is fitted in the mounting groove 241, the upper surface of the resistor 21 is flush with the upper surface of the fixing base 24, and the first resistor pin 21a and the second resistor pin 21b extend out of the mounting groove 241 and are connected to the first conductive pin and the second conductive pin 233, respectively. Therefore, the fixing effect of the resistor 21 and the fixing seat 24 is good.

Further, with reference to the embodiment shown in fig. 5, the fixing base 24 has a receiving cavity 242, the receiving cavity 242 is open downward, the inner elastic element 30 is disposed in the receiving cavity 242, an upper end of the inner elastic element 30 abuts against a top wall of the receiving cavity 242, and a lower end of the inner elastic element 30 abuts against an upper surface of the conductive element 11. Specifically, the accommodating cavity 242 is located below the mounting groove 241, a top wall of the accommodating cavity 242 is formed with a stop surface, an upper end of the inner elastic element 30 stops against the stop surface, a lower end of the inner elastic element 30 stops against the conductive portion 111, the conductive portion 111 is located in the accommodating cavity 242 and compresses the inner elastic element 30 in the accommodating cavity 242, and the conductive portion 111 is pressed by the inner elastic element 30 against the first holding claw 221 and the second holding claw 231. Thus, when the inner pot 200 is not placed in the inner pot detection device 100, the moving part 20 is always maintained at the first position with respect to the switching part 10.

Preferably, the inner elastic member 30 is a spring, and since the cross-sectional area of the abutting groove 111a is smaller than that of the top wall of the accommodating chamber 242, the cross-sectional area of the inner elastic member 30 is suitably set to be gradually increased from bottom to top.

According to some embodiments of the present invention, as shown in fig. 3, the moving portion 20 further includes a limiting member 25 and a top cover 26, the limiting member 25 is sleeved outside the fixing base 24, the limiting member 25 is provided with a guide hole 251a, the switching portion 10 is movably disposed through the guide hole 251a, the top cover 26 is assembled on the top of the limiting member 25, the upper end of the fixing base 24 abuts against the top cover 26, and the lower end abuts against the bottom wall of the limiting member 25.

Specifically, the limiting member 25 includes a bottom plate 251, a first extending portion 252 and a second extending portion 253, the guide hole 251a is disposed on the bottom plate 251, the first extending portion 252 and the second extending portion 253 extend upward from the edge of the bottom plate 251, the first extending portion 252 and the second extending portion 253 are symmetrically disposed with respect to the bottom plate 251, the limiting member 25 is sleeved on the outer side of the fixing base 24, the lower end surface of the fixing base 24 abuts against the upper surface of the bottom plate 251, the insulating member 12 extends into the accommodating cavity 242 from the guide hole 251a, the insulating member 12 is movable relative to the guide hole 251a, the upper end surfaces of the first extending portion 252 and the second extending portion 253 are flush with the upper end surface of the fixing base 24 and the upper surface of the resistor 21, the top cover 26 is assembled on the top of the limiting member 25, and the upper surface of the resistor 21 abuts against.

Further, as shown in fig. 3 and 5, the moving part 20 further includes a sleeve 27, the sleeve 27 is sleeved on the limiting member 25, an upper end of the sleeve 27, an upper end of the limiting member 25 and the top cover 26 are assembled with each other, and the sleeve 27 is adapted to be movably mounted on the carrier 50 of the inner pot detecting device 100. Specifically, the upper edge of the limiting member 25 is provided with an assembling edge 254 extending outwards in the horizontal direction, the upper edge of the sleeve 27 extends upwards and outwards, the upper edge of the limiting member 25 abuts against the inner side surface of the upper edge of the sleeve 27, the peripheral edge of the top cover 26 extends downwards and inwards, the top cover 26 covers the limiting member 25 and presses the assembling edge 254 against the inner side surface of the upper edge of the sleeve 27, and therefore the upper end of the sleeve 27, the upper end of the limiting member 25 and the top cover 26 are assembled into a whole, and the sleeve 27 can play a role in protecting and insulating internal parts.

According to some embodiments of the present invention, as shown in fig. 3 and 5, the inner pot detecting device 100 further includes an outer elastic member 40, the outer elastic member 40 is sleeved outside the sleeve 27, one end of the outer elastic member 40 abuts against the top cover 26 and the other end of the outer elastic member 40 abuts against the carrier 50. Specifically, the outer elastic member 40 is compressed between the top cover 26 and the carrier 50, the upper end of the outer elastic member 40 abuts against the lower end face of the top cover 26, the lower end of the outer elastic member 40 abuts against the upper surface of the carrier 50, and a certain distance is kept between the sleeve 27 and the carrier 50 under the elastic action of the outer elastic member 40 itself.

Optionally, the lower end of the sleeve 27 is provided with a limiting column 271 adapted to pass through the limiting hole 511 on the carrier 50, and the limiting column 271 is provided with a retaining portion 272 located below the carrier 50. Specifically, the carrier 50 has a mounting recess 51, the mounting recess 51 is formed by recessing the upper surface of the carrier 50 downward, the sleeve 27 is assembled in the mounting recess 51, the bottom wall of the mounting recess 51 is provided with a plurality of limiting holes 511 penetrating through the bottom wall, the lower end of the sleeve 27 is provided with a plurality of limiting columns 271 matching with the plurality of limiting holes 511 in a one-to-one correspondence manner, the limiting columns 271 are arranged in the limiting holes 511 in a penetrating manner, each limiting column 271 is provided with a retaining portion 272, the cross-sectional shape of the retaining portion 272 is suitable for being configured into a shape incapable of penetrating through the limiting holes 511, so that under the elastic force of the external elastic member 40, the retaining portion 272 is tightly attached to the lower surface of the carrier 50, and the sleeve 27 can be prevented. Preferably, the outer elastic member 40 is a spring, and the cross-sectional area of the outer elastic member 40 is gradually reduced from bottom to top.

Further, as shown in fig. 5, the moving portion 20 is spaced apart from the carrier 50 by a predetermined distance H only by the elastic force of the outer elastic member 40. That is, when the inner pot 200 is not placed in the inner pot detection device 100, the predetermined distance H is maintained between the switching part 10 and the carrier 50, that is, between the insulating member 12 and the bottom wall of the installation recess 51, by the common elastic force of the inner elastic member 30 and the outer elastic member 40.

According to some embodiments of the present invention, the maximum displacement L of the moving part 20 is greater than the predetermined distance H.

Specifically, in the process of placing the inner pot 200 on the inward pot detection device 100, as shown in fig. 6 and 7, when the inner pot 200 is not in contact with the top cover 26, the moving part 20 is located at the first position relative to the switching part 10 under the common elastic force of the outer elastic member 40 and the inner elastic member 30, and the distance between the inward pot detection device 100 and the carrier 50 is the predetermined distance H between the switching part 10 and the carrier 50; the inner pot detecting device 100 moves downward under the pressure of the inner pot 200, as shown in fig. 8 and 9, until the lower end surface of the switching part 10 abuts against the bottom wall of the mounting recess 51, the downward movement displacement of the inner pot detecting device 100 in the process is the predetermined distance H, and the moving part 20 keeps a static state relative to the switching part 10; under the pressure of the inner pot 200, the moving part 20 starts to move relative to the switching part 10, i.e. the moving part 20 starts to move from the first position to the second position relative to the switching part 10, as shown in fig. 10 and 11, when the moving part 20 is located at the second position relative to the switching part 10, the displacement of the moving part 20 from the first position to the second position is H, and in the process, the switching part 10 keeps a static state relative to the carrier 50, so the maximum displacement L of the moving part 20 is equal to the sum of the predetermined distance H and the displacement H. Through keeping predetermined distance H with carrier 50 in pot detection device 100 when setting up outer elastic component 40, can make the up end of interior pot detection device 100 keep a take the altitude to when pot body assembly 1000 in making pot detection device 100 assemble in the difference, can guarantee that interior pot 200 can trigger interior pot detection device 100 better, reduce because of the probability that interior pot 200 that assembly error caused can't trigger interior pot detection device 100, thereby pot detection device 100's sensitivity and suitability in having improved.

Further, the predetermined distance H is greater than or equal to 1 mm. Therefore, the matching effect of the inner pot 200 and the inner pot detection device 100 can be further improved, and the normal operation of the inner pot detection device 100 can be ensured.

In some embodiments of the present invention, the resistor 21 is a thermistor 21. When the inner pot 200 is normally placed on the inner pot detection device 100 and the cooking utensil is powered on to work, because the moving part 20 is located at the first position relative to the switching part 10, that is to say, the first current branch is located at the path, the resistor 21 generates heat in the working process, and the temperature of the resistor 21 can be controlled within a certain range through the thermal sensitive property of the thermistor 21, thereby avoiding the situation that the resistor 21 is overheated due to long-time power-on, further preventing the inner pot detection device 100 from aging due to high temperature, and further improving the safety.

Referring now to fig. 6-11, a pan body assembly 1000 in accordance with an embodiment of the second aspect of the present invention is described.

As shown in fig. 6 to 11, a pot body assembly 1000 according to an embodiment of the present invention includes: an outer pot, an inner pot 200 and an inner pot detection device 100 according to an embodiment of the first aspect of the present invention. Wherein, the inner pot detection device 100 is installed in the outer pot, and the inner pot 200 is installed in the outer pot and presses the moving part 20 from the first position to the second position.

According to the pot body assembly 1000 of the embodiment of the second aspect of the invention, by using the inner pot detection device 100 of the embodiment of the first aspect of the invention, whether the inner pot 200 is placed in the outer pot can be effectively detected in the power-on state, thereby eliminating the potential safety hazard caused by the fact that the user is powered on to work due to the fact that the inner pot 200 is not placed in the outer pot, and improving the safety.

A cooking appliance according to an embodiment of the third aspect of the invention comprises a pan body assembly 1000 according to an embodiment of the second aspect of the invention.

According to the cooking appliance, by using the pot body assembly 1000 according to the embodiment of the second aspect of the invention, the advantages of high safety performance, good user experience and the like are achieved.

Other constructions and operations of the inner pot detecting device 100 and the pot body assembly 1000 having the same according to the embodiment of the present invention and the cooking appliance are known to those skilled in the art and will not be described in detail herein.

In the description herein, references to the description of the terms "some embodiments," "exemplary embodiments," "examples," "specific examples," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An interior pot detection device, characterized by, includes:

a switching part including an insulating member and a conductive member;

a moving part movable between a first position and a second position relative to the switching part, the moving part having a first current branch and a second current branch, the first current branch having a resistor disposed thereon;

when the moving part is located at the first position, the second current branch is switched on through the conductive piece;

when the moving part is located at the second position, the second current branch is disconnected by the insulating part.

2. The inner pan detection device as claimed in claim 1, further comprising:

and the inner elastic piece is arranged between the switching part and the moving part and is used for normally pushing the moving part to the first position.

3. The inner pot detection device according to claim 2, wherein the moving part comprises:

the first conducting plate and the second conducting plate are respectively matched with the switching part in a movable mode, the resistor is provided with a first resistor pin and a second resistor pin, the first resistor pin is connected with the first conducting plate, and the second resistor pin is connected with the second conducting plate;

wherein one part of the first conductive sheet, one part of the second conductive sheet, the first resistance pin and the second resistance pin form the first current branch, and the other part of the first conductive sheet and the other part of the second conductive sheet form the second current branch.

4. The inner pot detecting device according to claim 3, wherein the insulating member is configured in a column shape extending in an up-down direction, the conductive member is provided at an upper end of the insulating member and has a cross-sectional area larger than that of the insulating member, and the first conductive piece and the second conductive piece are fitted to the insulating member so as to be movable up and down, respectively;

when the moving part is located at the first position, the first conducting sheet and the second conducting sheet are respectively contacted with the conducting pieces;

when the moving part is located at the second position, the first conducting strip and the second conducting strip are separated from the conducting pieces respectively.

5. The inner pan detecting device according to claim 4, wherein the first conducting strip has a first clasping claw, the second conducting strip has a second clasping claw, and the first clasping claw and the second clasping claw are clasped around the periphery of the insulating member and are separated from each other.

6. The inner pan detection device according to claim 5, wherein the first holding claw is provided with a first conductive protrusion, and the second holding claw is provided with a second conductive protrusion;

when the moving part is located at the first position, the first conductive protrusion and the second conductive protrusion are respectively contacted with the lower surface of the conductive piece;

when the moving part is located at the second position, the first conductive protrusion and the second conductive protrusion are respectively separated from the lower surface of the conductive piece.

7. The inner pan detecting device according to claim 3, wherein the first conductive plate has a first conductive pin and a first mounting groove, the second conductive plate has a second conductive pin and a second mounting groove, the first resistance pin is fitted in the first mounting groove and connected to the first conductive pin, and the second resistance pin is fitted in the second mounting groove and connected to the second conductive pin.

8. The inner pan detection device according to claim 7, wherein the first conductive pin is bent downward and is parallel to a central axis of the switching part;

the second conductive pin is bent downwards and is parallel to the central axis of the switching part.

9. The inner pan detecting device according to claim 4, wherein the conductive member comprises:

the upper surface of the conductive part is provided with an abutting groove, and the lower end of the inner elastic part is matched with the abutting groove;

the connecting part is connected to the lower surface of the conductive part, a mounting hole is formed in the upper end face of the insulating part, and the connecting part is inserted into the mounting hole.

10. The inner pan detection device according to any one of claims 3-9, wherein the moving part further comprises:

the resistor, the first conducting strip and the second conducting strip are respectively arranged on the fixed seat and keep relative positions through the fixed seat, the inner elastic piece is arranged in the fixed seat, and two ends of the inner elastic piece respectively abut against the fixed seat and the conducting piece.

11. The inner pot detection device according to claim 10, wherein the fixing seat is provided with a mounting groove formed by downwards recessing the upper surface of the fixing seat, and the resistor is mounted in the mounting groove.

12. The inner pot detection device according to claim 10, wherein the fixing base has an accommodating cavity, the accommodating cavity is open downward, the inner elastic member is disposed in the accommodating cavity, an upper end of the inner elastic member abuts against a top wall of the accommodating cavity, and a lower end of the inner elastic member abuts against an upper surface of the conductive member.

13. The inner pan detection device according to claim 10, wherein the moving part further comprises:

the limiting piece is sleeved on the outer side of the fixed seat and provided with a guide hole, and the switching part is movably arranged in the guide hole in a penetrating manner;

the top cover is assembled at the top of the limiting part, and the upper end of the fixing seat is abutted to the top cover and the lower end of the fixing seat is abutted to the bottom wall of the limiting part.

14. The inner pan detection device according to claim 13, wherein the moving part further comprises:

the sleeve is sleeved on the outer side of the limiting part, the upper end of the sleeve, the upper end of the limiting part and the top cover are assembled with each other, and the sleeve is suitable for being movably installed on a carrier of the inner pot detection device.

15. The inner pan detection device of claim 14, further comprising:

the outer elastic piece is sleeved on the outer side of the sleeve, one end of the outer elastic piece abuts against the top cover, and the other end of the outer elastic piece abuts against the carrier.

16. The inner pot detecting device according to claim 15, wherein the moving part is spaced apart from the carrier by a predetermined distance only under the elastic force of the outer elastic member.

17. The inner pot detection device according to claim 16, wherein the predetermined distance is greater than or equal to 1 mm.

18. The inner pot detection device according to claim 16, wherein the maximum displacement of the moving part is larger than the predetermined distance.

19. The inner pot detection device according to claim 15, wherein the lower end of the sleeve is provided with a limiting column which is suitable for passing through a limiting hole in the carrier, and the limiting column is provided with a falling-off prevention part which is positioned below the carrier.

20. The inner pan detection device according to claim 1, wherein the resistor is a thermistor.

21. A pan body assembly, comprising:

an outer pot;

the inner pot detection device of any one of claims 1 to 20, the inner pot detection device being mounted to the outer pot;

an inner pot disposed in the outer pot and pressing the moving part from the first position to the second position.

22. A cooking appliance comprising the pan body assembly of claim 21.