CN212394638U

CN212394638U - Cooking utensil with combined detection device

Info

Publication number: CN212394638U
Application number: CN202021550924.6U
Authority: CN
Inventors: 谢勇
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-07-27
Filing date: 2020-07-27
Publication date: 2021-01-26
Anticipated expiration: 2030-07-27

Abstract

The invention discloses a cooking utensil provided with a combined detection device, which is characterized by comprising: the heating device comprises a device body, a heating plate, a main board, a power socket and an internal connecting wire, wherein the device body is a device main body comprising a base, the heating plate, the main board, the power socket and the internal connecting wire; the container is made of non-metal materials and is fixedly connected with the container body to form a concave container capable of containing a heating object; the container accessory is provided with an elastomer mounting column, can accommodate a mounting detection device and a device arranged outside the container; the detection device is arranged between the container and the container accessory, comprises a thermistor, an insulating tube, a conductive shell and a lead, and can detect the internal temperature and the internal capacitance of the container by the bonding of the conductive shell and the outer wall of the container under the action of the elastomer; the elastic body is an elastic device, one end of the elastic body is provided with a mounting hole, and after the elastic body is mounted on the container accessory, the conductive shell can be well attached to the outer wall of the container.

Description

Cooking utensil with combined detection device

Technical Field

The invention relates to the technical field of kitchen appliances, in particular to a cooking appliance, wherein a container is made of non-metallic materials, and a detection device has the temperature and capacitance detection functions.

Background

With the enhancement of health requirements of consumers, a cooking appliance adopting a non-metal container becomes the next growth point for the sale of kitchen appliances, but the temperature detection method and device for the cooking appliance adopting the non-metal container on the market cannot detect and judge whether the appliance is dry-burned or not due to the influence of the heat conductivity coefficient of the non-metal material and the structure of the temperature detection device, and also has the function of preventing the dry-burning of the cooking appliance by detecting the capacitance change inside the container from the outside of the container by using a capacitance type touch technology.

Disclosure of Invention

The invention aims to utilize the existing temperature detection device and the capacitance type touch technology to change the existing temperature detection device into a combined detection device, and the temperature and the capacitance of an object or liquid in a container are detected from the outside of the container, so that the problems of temperature detection and dry burning prevention protection in the use of the existing non-metal container cooking utensil are solved.

In order to achieve the above object, the present invention provides a cooking appliance with a combined detecting device, comprising:

the heating device comprises a device body, a heating plate, a main board, a power socket and an internal connecting wire, wherein the device body is a device main body comprising a base, the heating plate, the main board, the power socket and the internal connecting wire;

the container is made of non-metal materials and is fixedly connected with the container body to form a concave container capable of containing a heating object;

the container accessory is provided with an elastomer mounting column, can accommodate a mounting detection device and a device arranged outside the container;

the detection device is arranged between the container and the container accessory, comprises a thermistor, an insulating tube, a conductive shell and a lead, and can detect the internal temperature and the internal capacitance of the container by the bonding of the conductive shell and the outer wall of the container under the action of the elastomer;

the elastic body is an elastic device, one end of the elastic body is provided with a mounting hole, and after the elastic body is mounted on the container accessory, the conductive shell can be well attached to the outer wall of the container.

Furthermore, the cooking utensil provided with the combined detection device is characterized in that the elastic body fixedly connected with the detection device is arranged on the container accessory through the mounting column, or the separated elastic body and the detection device are sequentially arranged on the container accessory through the mounting column and the guide groove, so that the conductive shell of the detection device is positioned in the positioning pit of the elastic body, after the container accessory is arranged outside the container through the container body or the container and the container body, the conductive shell of the detection device is well attached to the outer side wall of the container or an electrode arranged on the outer side wall of the container under the action of the elastic body, then the lead riveted or welded with the thermistor and the lead riveted or welded with the conductive shell or the elastic body are electrically connected with the main board to form the cooking utensil capable of simultaneously or periodically detecting the liquid temperature and/or the capacitance inside the container from the outside the container, the combined detection device can be used for intelligently controlling the cooking of the appliance and/or preventing dry burning.

Further, the detection device includes: PTC type or NTC type thermistor, suit in the thermal shrinkage tube or silicone tube or yellow wax pipe of thermistor guide stick both ends, wear the metal or non-metal conductive shell of cover in thermistor and insulating tube outward appearance, fill in the silica gel glue or epoxy between thermistor and conductive shell, carry out the wire that signal transmission has electrical connection terminal.

The invention adopts the following additional technical scheme:

the electrode is arranged on the outer wall of the container, and is a metal conductor which can enlarge the touch detection area of the capacitive touch technology and improve the stability of capacitance detection signals.

The electrode is a metal foil directly adhered to the outer wall of the container, or adhesive sticker paper adhered with the metal foil is adhered to the outer wall of the container, or conductive paste printed and solidified on the outer wall of the container.

The container is integrally made of non-metal materials or spliced by the materials or the non-metal materials with the same or different thicknesses.

The elastic body is a spring sheet, a spring or an elastic block made of metal or nonmetal materials.

The combined detection device has the advantages that the technical scheme of the combined detection device has the characteristics of simple and mature structure and process, low production cost, no damage to the integrity of the container, wide applicability, stable and reliable detection data and particularly remarkable dry burning prevention protection effect, effectively solves the problems of temperature detection and dry burning prevention protection in the use of the existing cooking appliance using the non-metal container, and expands the application of the non-metal container to the cooking appliance. Additional effects 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

FIG. 1 is an isometric exploded view of an embodiment of a cooking appliance with an electrode;

FIG. 2 is a cross-sectional view of an embodiment cooking appliance;

FIG. 3 is an enlarged partial view of area A of a cross-sectional view of the cooking appliance of the embodiment;

FIG. 4 is an isometric view of the embodiment detection device separated from the elastomer;

FIG. 5 is a cross-sectional view of the embodiment detection device separated from the elastomer;

FIG. 6 is an isometric view of an embodiment container accessory;

FIG. 7 is an enlarged partial view of area B of an axial view of the container attachment of the embodiment.

Reference numerals: 3. a wire; 5. a device body; 6. a container; 61. an electrode; 7. a detection device; 71. a conductive housing; 8. an elastomer; 81. positioning a pit; 9. a container fitment; 91. mounting a column; 92. a guide groove; A.A areas; B.B area.

The specific implementation mode is as follows:

embodiments of the invention will now be described in detail with reference to the drawings, wherein like reference numerals designate identical or similar elements or elements having identical or similar functions. The following examples are illustrative only for the purpose of illustrating the present invention and are not to be construed as simply limiting the invention.

The description of the invention refers to conceptual illustrations. Fixedly connecting: the two connecting pieces are connected in an integral connection mode, namely, when one piece is displaced or stressed, the other piece connected with the two connecting pieces is not displaced or relatively deformed relative to the first piece; electrical connection: it refers to the collection of all electrical circuits in an electrical product, including power connection parts such as power plugs, power terminals, etc., power lines, internal wires, internal connection parts, etc., and electrical connection in a narrow sense refers to all ways of connecting different conductors inside the product. The terms and terms "outer wall," "outer sidewall," "fitting," and the like are to be construed broadly in conjunction with the description herein, based on the prior art, unless otherwise expressly specified or limited. Therefore, the meanings of the above-mentioned nouns and terms in the present invention can be understood according to specific situations by those skilled in the art.

A cooking appliance provided with a combined detecting device of the present invention will be described with reference to fig. 1 to 7.

The technical scheme of the invention is that the cooking utensil provided with the combined detection device is characterized by comprising the following components:

the heating device comprises a device body (5), wherein the device body (5) is a device main body comprising a base, a heating disc, a mainboard, a power socket and an internal connecting wire, and further an IC capable of programming is arranged on the mainboard; the container (6) is integrally made of non-metal materials, or is spliced by the materials or the non-metal materials with the same or different thicknesses, and is fixedly connected with the appliance body (5) to form a concave appliance capable of containing a heating object; the container accessory (9), the said container accessory (9) is equipped with the elastomer (8) and installs the column (91), can hold and install the detecting device (7), the device set up outside the container (6), further, the said container accessory (9) is a device or a combination of multiple devices, including the known art handle, steel tape, lag, ornamental piece, nut, control panel, pressing plate; detection device (7), detection device (7) are set up between container (6) and container annex (9), including thermistor, insulating tube, electrically conductive shell (71), wire (3), electrically conductive shell (71) and container (6) outer wall laminating under elastomer (8) effect, the device of detectable container (6) inside temperature and electric capacity, further, detection device (7) include: PTC type or NTC type thermistor, heat-shrink tube or silicone tube or yellow wax tube that the suit is drawn at the thermistor and inserted the stick both ends, wear the metal or non-metal conductive outer cover (71) that is covered on thermistor and insulating tube appearance, fill the silicone glue or epoxy resin between thermistor and conductive outer cover (71), carry on the signal transmission and have electric connecting terminal's wire (3); the elastic body (8), the said elastic body (8) is an elastic device with one end equipped with mounting hole, after being mounted on the container attachment (9), the conductive shell (71) can be well jointed with the outer wall of the container (6), furthermore, the said elastic body (8) is a spring slice, or a spring, or an elastic block made of metal or nonmetal material.

Furthermore, the cooking utensil provided with the combined detection device is characterized in that the elastic body (8) fixedly connected with the detection device (7) is arranged on the container accessory (9) through the mounting column (91), or the separated elastic body (8) and the detection device (7) are sequentially arranged on the container accessory (9) through the mounting column (91) and the guide groove (92), so that the conductive shell (71) of the detection device (7) is positioned in the positioning pit (81) of the elastic body (8), after the container accessory (9) is arranged outside the container (6) through the container body (5) or the container (6) and the container body (5), the conductive shell (71) of the detection device (7) is well attached to the outer side wall of the container (6) or the electrode (61) arranged on the outer side wall of the container (6) under the action of the elastic body (8), and then the lead wire (3) riveted or welded with the thermistor is connected, and a lead (3) riveted or welded with the conductive shell (71) or the elastic body (8) is electrically connected with the main board to form a combined detection device which can simultaneously or periodically detect the temperature and/or the capacitance of the liquid in the container (6) from the outside of the container (6) and carry out intelligent control and/or dry burning prevention protection on the cooking of the appliance.

It should be noted that the stage is that two kinds of detection are used at the same time in some time periods, and only one detection function is used in some time periods, for example, before the cooking state is entered, after the appliance is confirmed to be in the non-dry-cooking state by using capacitance detection, the appliance can enter the cooking state, and the cooking process is controlled by using temperature detection.

Furthermore, the electrode (61) is arranged on the outer wall of the container, is in contact with the conductive shell (71), has a metal conductor which increases the touch area of the capacitive touch technology and improves the stability of capacitance detection signals, and the electrode (61) is a metal foil directly adhered to the outer wall of the container (6), or adhesive paper adhered with the metal foil is adhered to the outer wall of the container (6), or conductive paste printed and solidified on the outer wall of the container (6).

Further, as shown in fig. 1, the cooking appliance provided with the combined detection device is characterized by comprising: the device body (5) is integrally made of glass or ceramic, the container (6) fixedly connected with the device body (5) comprises a PTC type or NTC type thermistor, a silicone tube sleeved on the thermistor, a conductive shell (71) made of copper, aluminum or stainless steel and penetrating the thermistor and the silicone tube, a detection device (7) formed by the conductive shell, a spiral elastic body (8) made of metal materials, and a container accessory (9) comprising a handle, a handle cover and a steel strip, wherein the contact area between the conductive shell (71) and the container (6) can be increased by sticking the conductive shell (71) on the outer side wall of the container (6), namely, the touch detection area of the capacitive touch technology is enlarged, the influence of temperature rise, boiling liquid and electromagnetic interference is avoided, the stability of capacitance detection signals is improved, the appearance effect of the transparent container (6) is improved, and the electrode (61) of the aluminum foil is adhered to the self-adhesive paper.

Further, as shown in fig. 2 and 3, the cooking appliance provided with the combined detecting device is characterized by comprising: the main device body (5) is integrally made of glass or ceramic, the container (6) is fixedly connected with the device body (5), the spiral elastic body (8) is in a separation structure or fixedly connected with the detection device (7) and comprises a lifting handle, a lifting handle cover, a steel belt and a connecting nut, and after the device body (5) and the container (6) are installed and fixed, the container accessory (9) is positioned outside the container (6) and can lift and move the device; after the container accessory (9) is installed and fixed, the detection device (7) and the elastic body (8) which are installed on the container accessory (9) are positioned between the container (6) and the container accessory (9), the detection device (7) is well attached to the outer side wall of the container (6) which is higher than the bottom of the inner side of the container (6) by more than 3mm and lower than the height of the container (6)1/3 under the action of the elastic body (8), a lead (3) riveted or welded with a thermistor and a lead (3) riveted or welded with a conductive shell (71) or the elastic body (8) are electrically connected with a main board, and the main board can be simultaneously or periodically changed from the outside of the container (6) according to the temperature and/or capacitance inside the container (6) according to the control program corresponding to different temperatures set by an IC and the data that liquid is lower than the conductive shell (71) and is in a water-free state, intelligent control and/or dry-burning prevention protection are realized for cooking.

Specifically, no matter the capacitance data is acquired by the conductive shell (71) directly from the outer wall of the container (6) or acquired through the electrodes (61) and the outer wall of the container (6), as long as the capacitance data acquired by the conductive shell (71) is within the capacitance data range of the anhydrous state set by the IC on the mainboard, the mainboard judges that the inside of the container (6) is in the anhydrous state and timely disconnects the working power supply, so that the liquid height in the container (6) is detected and judged from the outside of the container (6), and the purpose of avoiding the appliance from being burnt is achieved; after the conductive shell (71) transmits the detected temperature change signal inside the container (6) to the main board, the main board can detect the temperature inside the container (6) from the outside of the container (6) according to different temperatures and cooking stages and process the temperature through a set program, so that the aim of intelligently controlling cooking is fulfilled.

Furthermore, as shown in fig. 4 and 5, the detection device (7) and the elastic body (8) are separate independent devices, in order to improve the response speed of the temperature detection of the detection device (7) and solve the detection lag problem existing in the existing temperature detection technology, the insulation pipes are only sleeved at two ends of the guide rod of the thermistor, so that the temperature sensing part of the thermistor is directly contacted with the conductive shell (71) to achieve the purpose of rapid temperature transmission without obstruction, and the lead wire (3) used for capacitance detection is not suitable for being connected with the detection device (7) in order to reduce the influence of heat storage on the temperature detection; in order to effectively limit the installation position of the detection device (7), one end of the spiral elastic body (8) abutting against the detection device (7) is provided with a concave positioning pit (81) matched with the conductive shell (71), and the other end is provided with an installation hole and a lead wire connected with the lead wire (3).

Further, as shown in fig. 6 and 7, the handle of the container accessory (9) faces the side of the container (6), and is provided with a mounting column (91) and a guide groove (92) for conveniently mounting the separate detection device (7) and the elastic body (8), when the detection device (7) is fixedly connected with the elastic body (8), the container accessory (9) does not need to be provided with the guide groove (92) for conveniently mounting the detection device (7) and moving along the radial direction of the container (6), and further, the mounting column (91) for fixing the elastic body (8) is mounted, or the slot for inserting the elastic body (8) is inserted.

Further, above-mentioned cooking utensil's that is equipped with combination formula detection device technical scheme, applicable cooking utensil includes: an electric kettle, a health preserving kettle, an electric Chinese medicine kettle, an electric rice cooker, an electric steamer, an electric chafing dish, an electric stewpot, an air fryer, a deep fryer and an electric heating multipurpose pot.

Claims

1. A cooking appliance provided with a combined detection device, characterized in that it comprises:

2. The cooking utensil with combined detecting device as claimed in claim 1, wherein the elastic body fixedly connected with the detecting device is installed on the container attachment through the installation column, or the separated elastic body and the detecting device are installed on the container attachment in turn through the installation column and the guide slot, so that the conductive shell of the detecting device is in the positioning pit of the elastic body, after the container attachment is installed outside the container through the container body or the container and the container body, the conductive shell of the detecting device is well attached to the outer side wall of the container or the electrode arranged on the outer side wall of the container under the action of the elastic body, and then the lead riveted or welded with the thermistor and the lead riveted or welded with the conductive shell or the elastic body are electrically connected with the main board, thereby forming the structure of the cooking utensil with combined detecting device for simultaneously or periodically detecting the liquid temperature and/or the capacitance inside the container from the outside of the container, the combined detection device can be used for intelligently controlling the cooking of the appliance and/or preventing dry burning.

3. The cooking appliance with combined detection device as claimed in claim 2, wherein the electrode is a metal conductor disposed on the outer wall of the container, which has an enlarged touch detection area of capacitive touch technology and improves the stability of capacitive detection signal.

4. The cooking utensil with combined detection device as claimed in claim 2, wherein the electrode is a metal foil directly adhered to the outer wall of the container, or a self-adhesive paper with a metal foil adhered to the outer wall of the container, or a conductive paste printed and cured on the outer wall of the container.

5. A cooking appliance provided with a combined detection device according to claim 1, characterized in that said detection device comprises: PTC type or NTC type thermistor, suit in the thermal shrinkage tube or silicone tube or yellow wax pipe of thermistor guide stick both ends, wear the metal or non-metal conductive shell of cover in thermistor and insulating tube outward appearance, fill in the silica gel glue or epoxy between thermistor and conductive shell, carry out the wire that signal transmission has electrical connection terminal.

6. The cooking appliance with combined detecting device as claimed in claim 1, wherein the container is made of non-metal material as a whole or made by splicing non-metal material or non-metal material with same or different thickness.

7. The cooking appliance with the combined detecting device as claimed in claim 1, wherein the elastic body is a spring sheet, a spring or an elastic block made of metal or nonmetal.