CN219249896U

CN219249896U - Cooking utensil

Info

Publication number: CN219249896U
Application number: CN202222872727.1U
Authority: CN
Inventors: 朱光正; 章君广; 王宇; 丁钦海; 贾建栋; 楼杭颖; 彭凌云
Original assignee: Panasonic Kitchen Appliances Technology Jiaxing Co ltd; Panasonic Appliances China Co Ltd
Current assignee: Panasonic Kitchen Appliances Technology Jiaxing Co ltd; Panasonic Appliances China Co Ltd
Priority date: 2022-10-28
Filing date: 2022-10-28
Publication date: 2023-06-27
Anticipated expiration: 2032-10-28

Abstract

The utility model discloses a cooking utensil, which belongs to the field of kitchen appliances and has a liquid detection function so as to solve the problem of water inflow of the cooking utensil. Through setting up the sensor and detecting the hydrops below the air intake, make the user in time detect the hydrops condition through the detection of sensor to liquid before liquid is inhaled the air intake to avoid liquid to be inhaled the cooking utensil inside.

Description

Cooking utensil

[ field of technology ]

The utility model relates to the field of kitchen appliances, in particular to a cooking appliance.

[ background Art ]

The cooking utensil is inside to be provided with more electronic component, in order to avoid inside high temperature to influence electronic component's normal work, can dispose the heat sink that is used for the cooling on the cooking utensil. Typically, the cooling device includes a fan that can introduce ambient low-temperature air into the interior of the cooking appliance to cool the cooking appliance. The air inlet can be configured on the cooking utensil, and external air enters the cooking utensil inside at the air inlet at faster speed to lead to the atmospheric pressure of air inlet below lower, if there is liquid cooking utensil below, and the interval of liquid and air inlet is little, the fan has the possibility of inhaling the liquid cooking utensil inside, thereby leads to inside water intaking. In order to carry out waterproofness to cooking utensil among the prior art, can set up water retaining structure to prevent that liquid from entering into cooking utensil inside, but general water retaining structure can bulge in cooking utensil and lead to cooking utensil's size to increase, or adopt complicated loop construction to improve the degree of difficulty that liquid enters into cooking utensil inside, or increase the structure that is used for discharging liquid in cooking utensil inside, all can improve equipment cost and installation degree of difficulty.

[ utility model ]

The utility model aims to solve the technical problem of overcoming the defects of the prior art and providing a cooking utensil with a liquid detection function so as to solve the problem of water inflow of the cooking utensil.

In order to solve the technical problems, the utility model adopts the following technical scheme:

the cooking utensil comprises a utensil body, a fan arranged on the utensil body and an air inlet arranged corresponding to the fan, wherein a sensor for detecting effusion below the air inlet is arranged on the utensil body.

On the basis of the scheme, the sensor is a capacitive sensor and is used for detecting the capacitance value change of the medium between the appliance body and the table top below the appliance body.

On the basis of the scheme, the device body is provided with the check piece, the check piece comprises an inner cavity, and the sensor is arranged in the inner cavity and at least contacts with the bottom wall of the inner cavity.

On the basis of the scheme, the appliance body comprises a base, and the check piece is integrally formed on the base.

On the basis of the scheme, the grid baffle protrudes downwards from the bottom of the appliance body, and the grid baffle protrudes more from the bottom of the appliance body than the air inlet.

On the basis of the scheme, the sensors are provided with a plurality of sensors and are arranged along the circumference of the air inlet.

On the basis of the scheme, the sensor is a touch flat cable, and the touch flat cable changes the capacitance value after contacting with liquid.

On the basis of the scheme, the touch flat cable is arranged along the circumferential direction of the air inlet.

On the basis of the scheme, the distance between the sensor and the edge of the air inlet is smaller than the distance between the sensor and the bottom edge of the appliance body.

On the basis of the scheme, the sensor is arranged in the air inlet.

The utility model has the beneficial effects that:

in the using process of the cooking utensil disclosed by the utility model, the fan acts to introduce the external low-temperature air into the interior of the utensil body through the air inlet, so that the internal components are cooled, and the normal operation of the internal components is maintained. Through setting up the sensor and carrying out hydrops detection to the air intake below to make cooking utensil can make corresponding measure according to the detection information of sensor, make liquid can not be inhaled in the air intake, thereby make cooking utensil possess outstanding waterproof function. Compared with the mode of adding a waterproof structure to block liquid in the prior art, the cooking utensil of the application is simpler in structure due to the fact that the waterproof structure or the water draining structure is not required to be additionally arranged, and in addition, the heat dissipation efficiency is reduced due to the fact that the waterproof structure or the water draining structure is arranged, and the airflow flow speed is weakened.

Further, the sensor is a capacitive sensor and is used for detecting the capacitance value change of the medium between the appliance body and the table top below the appliance body. The capacitance values of the air and the liquid are different, and the capacitance sensor can detect the capacitance value change of the medium between the table top and the appliance body so as to judge whether the accumulated liquid exists below the water inlet.

Further, the device body is provided with a check piece, the check piece comprises an inner cavity, and the sensor is arranged in the inner cavity and at least contacts with the bottom wall of the inner cavity. Can avoid sensor direct contact to liquid and lead to liquid infiltration to cooking utensil inside through setting up the check piece, the condition of short circuit appears, and the sensor setting can sense the capacitance value change of the medium of check piece contact in the inner chamber. When liquid exists below the air inlet, the air suction inlet can suck the liquid into the cooking utensil, and the suction force of the fan can act on the liquid after the liquid accumulation occurs to a certain scale and height, so that the sensor can respond when a small amount of liquid accumulation occurs on the table top and the normal use is prevented from being influenced. Along with the rising of liquid level below the utensil body, the lower terminal surface of check piece is the position that contacts liquid first on the check piece, and the sensor contacts with the diapire of inner chamber, can detect the contact that produces between check piece and the liquid in the shortest time to guarantee the sensitivity of sensor.

Further, the appliance body comprises a base, and the grid baffle piece is integrally formed on the base. The check piece is not required to be additionally assembled on the base during assembly, and gaps do not exist among the check piece, the check piece and the base, so that the sealing performance of the inner cavity is guaranteed, and the phenomenon that the normal operation of the sensor is influenced due to the fact that liquid permeates into the inner cavity when the check piece is contacted with the liquid and contacts with the sensor is avoided.

Further, the check piece protrudes downwards from the bottom of the appliance body, and the sensor protrudes more from the bottom of the appliance body than the air inlet. The protruding check piece can shorten the distance between sensor and the mesa, improves the sensitivity to hydrops detection. When the check piece contacts liquid, a certain distance is reserved between the liquid and the air inlet, so that the sensor can detect accumulated liquid before the liquid is sucked into the air inlet, and the reliability of the sensor is guaranteed. When the sensor detects that the liquid accumulation reaches or approaches the air inlet, a certain time is needed, so that a certain reaction time is reserved for a user, and the liquid can be cleaned before the liquid level rises to the air inlet.

Further, the sensor is provided with a plurality of sensors and is arranged along the circumference of the air inlet. The detection range of a single sensor is limited, the detection range of liquid accumulation can be improved by arranging a plurality of sensors, the hysteresis of the detection of the liquid accumulation by the single sensor due to the fact that the local liquid level is too high is avoided, and the sensitivity of the cooking utensil to the liquid level detection function is improved.

Further, the sensor is a touch type flat cable, and the touch type flat cable changes its own capacitance value after contacting with liquid. When the liquid level below the appliance body rises and contacts the touch flat cable, the capacitance value of the touch flat cable is changed, so that an electric signal can be generated, and the appliance body can know that the liquid level below the appliance body can influence heat dissipation after receiving the electric signal.

Further, the touch flat cable is disposed along a circumferential direction of the air inlet. The touch type flat cable can timely detect the liquid level change near the air inlet so as to ensure the detection accuracy and avoid false alarm.

Further, the distance between the sensor and the edge of the air inlet is smaller than the distance between the sensor and the bottom edge of the appliance body. The sensor is arranged at a position close to the air inlet, the distance between the sensor and liquid below the air inlet can be shortened, the sensitivity of the sensor to liquid level detection below the air inlet is improved on the premise that the air flow at the air inlet is not influenced, the change of the height of the liquid level can be timely sensed, and therefore the waterproof performance of the cooking utensil is improved.

Further, the sensor is arranged in the air inlet. The sensor can directly detect the accumulated liquid of the liquid below the air inlet, reduces the possibility of false alarm and improves the reliability of the sensor.

These features and advantages of the present utility model will be disclosed in detail in the following detailed description and the accompanying drawings.

[ description of the drawings ]

The utility model is further described with reference to the accompanying drawings:

fig. 1 is a schematic structural view of a cooking appliance according to an embodiment of the present utility model;

fig. 2 is a schematic structural view of another cooking appliance according to an embodiment of the present utility model;

fig. 3 is a schematic structural view of a cooking appliance equipped with a plurality of sensors according to an embodiment of the present utility model;

fig. 4 is a schematic structural view of another cooking appliance according to an embodiment of the present utility model;

fig. 5 is a schematic structural view of another cooking apparatus according to an embodiment of the present utility model.

Reference numerals:

appliance body 100, induction coil 101, leg 110, base 120, through hole 130, and peripheral edge 140;

fan 200, air intake 210;

sensor 300, barrier 310, lumen 320;

the circuit board assembly 400.

[ detailed description ] of the utility model

The technical solutions of the embodiments of the present utility model will be explained and illustrated below with reference to the drawings of the embodiments of the present utility model, but the following embodiments are only preferred embodiments of the present utility model, and not all embodiments. Based on the examples in the implementation manner, other examples obtained by a person skilled in the art without making creative efforts fall within the protection scope of the present utility model.

The appearances of the phrases such as "exemplary," "some embodiments," and the like in the following text are meant to be "serving as examples, embodiments, or illustrative," and any embodiment described as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, it will be appreciated by those skilled in the art that the present disclosure may be practiced without some of these specific details.

Referring to fig. 1 and 2, the embodiment of the utility model discloses a cooking appliance, which comprises an appliance body 100, a fan 200 arranged on the appliance body 100 and an air inlet 210 arranged corresponding to the fan 200, wherein a sensor 300 for detecting liquid accumulation below the air inlet 210 is arranged on the appliance body 100, and the cooking appliance can respond to waterproof response according to a detection signal of the sensor 300.

In the use process of the cooking appliance disclosed by the utility model, the fan 200 acts to introduce external low-temperature air into the interior of the appliance body 100 through the air inlet 210, so as to cool the internal components and maintain the normal operation of the internal components. By arranging the sensor 300 to detect the accumulated liquid below the air inlet 210, the cooking appliance can make a waterproof response according to the detection information of the sensor 300, so that the liquid cannot be sucked into the air inlet 210, and the cooking appliance has an excellent waterproof function. The waterproof response may be to set an alarm on the appliance body 100, where the alarm can generate an alarm to remind a user to clean the table top below the appliance body 100, and the cooking appliance itself may also perform a corresponding processing manner, for example, stop the rotation of the fan 200 or reduce the rotation speed of the fan 200 in the process, so as to avoid the fan 200 sucking the liquid. The alarm can be a buzzer which sounds or can display corresponding information on an operation panel of the cooking utensil to remind a user. Compared with the mode of adding a waterproof structure to block liquid in the prior art, the cooking utensil of the application is simpler in structure due to the fact that the waterproof structure or the water draining structure is not required to be additionally arranged, and in addition, the heat dissipation efficiency is reduced due to the fact that the waterproof structure or the water draining structure is arranged, and the airflow flow speed is weakened.

The cooking utensil can be an electric cooker, an electromagnetic oven, an electric baking tray and other household appliances.

To avoid false alarms and improve the reliability of the sensor 300, the sensor 300 is positioned close to the air inlet 210. At least, the distance between the sensor 300 and the edge of the air inlet 210 is smaller than the distance between the sensor 300 and the edge of the bottom of the appliance body 100, so that the distance between the sensor 300 and the liquid below the air inlet 210 is shortened, the sensitivity of the sensor 300 to the detection of the liquid level below the air inlet 210 is improved on the premise that the air flow at the air inlet 210 is not influenced, the change of the height of the liquid level can be timely sensed, and the waterproof performance of the cooking appliance is improved. Of course, the closer the sensor 300 is to the edge of the air inlet 210, the better the detection effect.

In addition, the sensor 300 may be disposed at the air inlet 210, so that the sensor 300 can directly detect the liquid level of the liquid below the air inlet 210, thereby reducing the possibility of false alarm and improving the reliability of the sensor 300. However, the sensor 300 is disposed at the air inlet 210 to block the air flow, which affects the cooling effect of the fan 200, and it is preferable to dispose the sensor 300 at the bottom of the device body 100 near the air inlet 210.

The sensor 300 is a capacitive sensor, and the capacitive sensor can detect capacitance to determine whether or not there is liquid accumulation below the water inlet 210. When the substance contacted by the check member 310 is changed from air to liquid, the capacitance will change correspondingly, the generated detection signal is the change of capacitance value, the capacitance values of air and liquid are different, the capacitance sensor can detect the change of capacitance value of the medium between the table top and the appliance body 100, and the cooking appliance can respond after the capacitance value reaches and exceeds the value by setting the value of the data.

The cooking appliance may directly respond after the lower end surface of the barrier 310 contacts the liquid, or may generate a primary alarm after the lower end surface of the barrier 310 contacts the liquid, and generate a secondary alarm after the liquid level reaches another height position after the liquid level continues to rise.

Compared with a general sensor (such as infrared detection), the technical scheme disclosed by the application is lower in cost, and the sensor 300 can only be used for detecting the local liquid level so as to detect the position below the air inlet, so that the interference of the liquid at the rest positions on the sensor 300 is avoided, and the reliability of the sensor 300 is ensured. The sensor 300 may use a sensing spring or a patch diaphragm.

The device body 100 is provided with a stopper 310, the stopper 310 includes an inner cavity 320, and the sensor 300 is disposed in the inner cavity 320 and contacts at least the bottom wall of the inner cavity 320. Through setting up check piece 310 can avoid sensor 300 direct contact to liquid and lead to the liquid infiltration to the cooking utensil inside, the condition of short circuit appears, and sensor 300 sets up in the inner chamber, can sense the capacitance value change of the medium of check piece 310 contact. And when there is liquid below the air inlet 210, it does not mean that the air inlet 210 can suck the liquid into the cooking utensil, so that the suction force of the fan 200 can act on the liquid after the liquid accumulation occurs at a certain scale and height, and thus the sensor 300 can be prevented from responding when a small amount of liquid accumulation occurs on the table top, and normal use is affected. As the liquid level below the appliance body 100 increases, the lower end surface of the barrier 310 is the part of the barrier 310 that is first contacted with the liquid, and the sensor 300 contacts with the bottom wall of the inner cavity 320, so that the contact between the barrier 310 and the liquid can be detected in the shortest time, so as to ensure the sensitivity of the sensor 300.

In actual use, the liquid is inevitably splashed onto the barrier 310, but when a small amount of liquid contacts the sensor 300, the generated signal changes are not obvious, and the airflow speed below the appliance body 100 is faster, so that the liquid attached to the barrier 310 can be quickly evaporated to return the signal to a normal value.

Referring to fig. 1 and 2, in one embodiment of the present utility model, based on the above embodiment, the barrier 310 protrudes more from the bottom of the device body 100 than the air inlet 210.

By this arrangement, the barrier 310 is spaced from the air inlet 210 by a certain distance when it contacts the liquid, so that the sensor 300 can detect the liquid level before the liquid is sucked into the air inlet 210, and the reliability of the sensor 300 is ensured. In addition, when the sensor 300 detects that the liquid level reaches or approaches the air inlet 210, a certain time is required, so that a certain reaction time is reserved for the user, and the cleaning of the liquid can be completed before the liquid level rises to the air inlet 210.

A plurality of legs 110 are provided at the bottom of the appliance body 100 for supporting the appliance body 100 and maintaining a space between the appliance body 100 and a table top (a plane for placing the cooking appliance) so that external air can smoothly enter the interior of the cooking appliance through the air inlet 210. Preferably, the air inlet 210 is at least flush with the lower end surface of the device body 100, so that the air inlet 210 can be far away from the table, or an upwardly concave area is provided at the bottom of the device body 100, and the air inlet 210 is disposed in this area, so that the air inlet 210 can be higher than the lower end surface of the device body 100.

Referring to fig. 3, in an embodiment of the present utility model, since the detection range of the sensor 300 is small, only the liquid level at a local position can be detected, and if the liquid and the sensor 300 are spaced apart from the air inlet 210, the liquid level of the liquid under the air inlet 210 may already reach the level that can be sucked by the fan 200 when the liquid can be detected by the sensor 300. In this embodiment, the plurality of sensors 300 are disposed, and the plurality of sensors 300 are distributed at intervals along the circumferential direction of the air inlet 210, so that the total detection range is increased after the plurality of sensors 300 are disposed, the plurality of sensors 300 can detect the liquid below the air inlet 210 and around the air inlet 210, thereby avoiding the hysteresis of the detection of the liquid surface by the single sensor 300 caused by the overhigh local liquid surface, and improving the sensitivity of the cooking appliance to the liquid surface detection function.

Referring to fig. 4, in an embodiment of the present utility model, in order to improve the detection sensitivity based on the above embodiment, the bottom of the instrument body 100 is provided with the through hole 130, the sensor 300 protrudes out of the through hole 130, and the detection sensitivity can be improved and the response time can be reduced due to the lack of a barrier of the instrument body 100 between the medium and the sensor 300.

Referring to fig. 5, in one embodiment of the present utility model, unlike the above-described embodiment, the sensor 300 is a touch type flat cable, which changes its own capacitance value upon contact with a liquid. When the liquid level below the device body 100 rises and contacts the touch flat cable, the capacitance value of the touch flat cable is changed, so that an electric signal can be generated, and the device body 100 can know that the liquid level below the device body 100 can influence heat dissipation after receiving the electric signal.

In order to improve the detection sensitivity and reduce the probability of false alarm, the touch flat cable is arranged along the edge of the air inlet 210, so that the touch flat cable can timely detect the liquid level change at or near the air inlet 210.

The lower end surface of the device body 100 is provided with a surrounding edge 140 protruding downwards along the periphery of the air inlet 210, and the touch flat cable is mounted at the end position of the surrounding edge 140. The lower edge of the surrounding edge 140 has a larger gap from the fan 200, and the touch flat cable is installed at the end position of the surrounding edge 140, so that the early warning can be avoided when the liquid level rises to the air inlet 210.

In addition, the touch flat cable can also be arranged on the device body around the air inlet, and the lower end of the air inlet is flush with the lower surface of the device body.

Referring to fig. 1 to 3, in one embodiment of the present utility model, the appliance body 100 includes a base 120, and the stopper 310 is integrally formed at the base 120 based on the above embodiment. In the molding process, the grid piece 310 with the inner cavity 320 is integrally molded on the base 120 through a mold, or the base 120 is recessed to form the grid piece 310 with the inner cavity 320 through mold extrusion after the base 120 is molded, so that the assembly can be completed only by configuring the sensor 300 in the inner cavity 320, the grid piece 310 does not need to be additionally assembled on the base 120 during the assembly, gaps do not exist among the grid piece 310, the grid piece 310 and the base 120, the sealing performance of the inner cavity 320 is ensured, and the phenomenon that the liquid permeates into the inner cavity 320 when the grid piece 310 contacts the liquid and contacts the sensor 300 to influence the normal operation of the sensor 300 is avoided.

Referring to fig. 1 to 3, in an embodiment of the present utility model, based on the above embodiment, the apparatus body 100 is further provided with a circuit board assembly 400, the circuit board assembly 400 can control the working state of the cooking apparatus, for example, adjust the heating temperature, switch of the induction coil 101, the rotation and the rotation speed of the fan 200 can be regulated and controlled by the circuit board assembly 400, the sensor 300 is electrically connected with the circuit board assembly 400 to take electricity from the circuit board assembly 400 to maintain the normal operation of the sensor, and the circuit board assembly 400 can collect the detection data of the sensor 300 for analysis processing, without additionally providing a power supply structure and a signal analysis module, thereby reducing the equipment cost. If the sensor 300 is an inductive spring, one end of the inductive spring is propped against the bottom wall of the inner cavity 320, and the other end of the inductive spring is connected with the circuit board assembly 400; if the sensor 300 is a diaphragm, the diaphragm is mounted on the inner wall of the inner cavity 320 and is electrically connected with the circuit board assembly 400 through a wire; if a plurality of sensors 300 are provided, the sensors 300 are preferably diaphragms, the connection of the diaphragms to the circuit board assembly 400 is simpler, and if an inductive spring is used, the circuit board assembly 400 is required to be sized larger to cover the plurality of sensors 300.

While the utility model has been described in terms of embodiments, it will be appreciated by those skilled in the art that the utility model is not limited thereto but rather includes the drawings and the description of the embodiments above. Any modifications which do not depart from the functional and structural principles of the present utility model are intended to be included within the scope of the appended claims.

Claims

1. The cooking utensil comprises a utensil body, a fan arranged on the utensil body and an air inlet arranged corresponding to the fan, and is characterized in that a sensor for detecting accumulated water below the air inlet is arranged on the utensil body.

2. The cooking appliance of claim 1, wherein the sensor is a capacitive sensor for detecting a change in capacitance of the medium between the appliance body and a counter top below the appliance body.

3. The cooking appliance of claim 2, wherein the appliance body is provided with a stop member, the stop member comprising an inner cavity, the sensor being disposed within the inner cavity and in contact with at least a bottom wall of the inner cavity.

4. A cooking appliance according to claim 3, wherein the appliance body includes a base, the catch being integrally formed on the base.

5. A cooking appliance according to claim 3, wherein the barrier projects downwardly from the bottom of the appliance body and the barrier projects further from the bottom of the appliance body than the air inlet.

6. The cooking appliance according to claim 2, wherein the sensor is provided in plurality and is disposed along a circumference of the air inlet.

7. The cooking appliance of claim 1, wherein the sensor is a touch flat cable that changes its capacitance value upon contact with a liquid.

8. The cooking appliance of claim 7, wherein the touch flat cable is disposed along a circumferential direction of the air inlet.

9. The cooking appliance of any one of claims 1 to 8, wherein the distance of the sensor from the air intake edge is less than the distance of the sensor from the appliance body bottom edge.

10. The cooking appliance of any one of claims 1 to 8, wherein the sensor is disposed within the air intake.