Intelligent pot cover

Abstract

The embodiment of the utility model discloses an intelligent pot cover. The intelligent pot cover comprises a pot cover body, and the pot cover body comprises a pot cover upper part and a pot cover lower part which are fixedly connected up and down; the pot cover upper part comprises a wireless transceiving circuit board, an antenna and a first contact part electrically connected with the wireless transceiving circuit board; the pot cover lower part comprises an anti-overflow electrode, a temperature sensor and a second contact part, one end of the second contact part is electrically connected with the anti-overflow electrode and the temperature sensor through wires, and the other end of the second contact part is electrically connected with the first contact part; the wireless transceiving circuit board receives a temperature signal and an anti-overflow signal detected by the temperature sensor and the anti-overflow electrode, the received temperature signal and the anti-overflow signal are sent to the cooker control circuit through the antenna, and intelligent cooking with anti-overflow detection, overflow flameout protection optimization and temperature real-time control can be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of kitchen stoves, in particular to an intelligent pot cover. Background Art

[0002] Existing open flame stoves are basically unable to adjust the firepower intelligently. The few stoves that can adjust the firepower only set the firepower configuration according to the recipe, and set it to high, medium or low fire for a certain period of time. In addition, the temperature control of existing open flame stoves is also mainly for dry burning control, and the probability of misjudgment is high. It is easy to misjudge it as dry burning during high-fire stir-frying. The temperature sensor for flameout detection attached to the bottom of the pot will also cause low real-time flameout detection due to lag. Summary of the invention

[0003] The present application aims to solve the technical problem that an open flame stove cannot adjust the cooking power in real time according to the temperature in the pot, and the anti-dry burning temperature sensor only detects whether it is dry burning, but cannot specifically determine the temperature in the pot, resulting in low real-time flameout detection. To solve this technical problem, the present application provides the following technical solutions:

[0004] On the one hand, the present application provides a smart pot cover, comprising a pot cover body, wherein the pot cover body comprises a pot cover upper part and a pot cover lower part fixedly connected up and down;

[0005] The upper part of the pot cover includes a wireless transceiver circuit board, an antenna and a first contact portion, and one end of the first contact portion is electrically connected to the wireless transceiver circuit board;

[0006] The lower part of the pot cover includes an anti-overflow electrode, a temperature sensor and a second contact part. The temperature sensor is arranged in the anti-overflow electrode. One end of the second contact part is electrically connected to the anti-overflow electrode and the temperature sensor through a wire, and the other end of the second contact part is electrically connected to the first contact part.

[0007] The wireless transceiver circuit board is used to receive the temperature signal and the anti-overflow signal detected by the temperature sensor and the anti-overflow electrode, and send the received temperature signal and the anti-overflow signal to the cooker control circuit through the antenna.

[0008] Optionally, there are two anti-overflow electrodes, including a first anti-overflow electrode and a second anti-overflow electrode, and the temperature sensor is arranged inside the first anti-overflow electrode or the second anti-overflow electrode.

[0009] Optionally, the upper portion of the pot cover further includes a battery and an upper shell of the pot cover, the upper shell of the pot cover includes a first accommodating cavity and a first connecting portion, the first accommodating cavity is away from the second contact portion and is connected to the first connecting portion;

[0010] The battery is arranged inside the first accommodating cavity and is used to supply power to the wireless transceiver circuit board;

[0011] The first contact portion is disposed at an end portion of the first connecting portion close to one end of the first accommodating cavity.

[0012] Optionally, the lower part of the pot cover further includes a pot cover lower shell, and the pot cover lower shell includes a second accommodating cavity and a second connecting portion;

[0013] The second contact portion is arranged at the end of the second connecting portion away from one end of the second accommodating cavity, and the portion of the anti-overflow electrode close to one end of the second connecting portion is arranged in the inner cavity of the second accommodating cavity.

[0014] Optionally, the first contact portion is a metal contact surface, at least three of the metal contact surfaces are arranged on the end surface of the first connection portion, the second contact portion is an elastic contact point, at least three of the elastic contacts are arranged on the end surface of the second connection portion, and the metal contact surface is electrically connected to the elastic contact;

[0015] Optionally, the first contact portion is an elastic contact point, and the second contact portion is a metal contact surface.

[0016] Optionally, an internal thread is provided on the inner wall of the first connection part, an external thread is provided on the outer wall of the second connection part, and the second connection part is connected to the first connection part through threads.

[0017] Optionally, the second connection portion and the second accommodating cavity are both cylindrical in shape, and the second connection portion is arranged on an end surface of the second accommodating cavity close to one end of the first connection portion;

[0018] The outer diameter of the second connecting portion is smaller than the outer diameter of the second accommodating cavity;

[0019] The peripheral edge portions of the second accommodating cavity and the second connecting portion fitting surface are bosses, and a sealing silicone surface is arranged on the bosses.

[0020] Optionally, the temperature sensor is a negative temperature coefficient thermistor.

[0021] Optionally, the anti-overflow electrode is made of a corrosion-resistant food-grade metal material.

[0022] Optionally, the antenna is arranged to fit the inner surface of the first accommodating cavity;

[0023] Optionally, the antenna is arranged on the wireless transceiver circuit board;

[0024] Optionally, the material of the first accommodating cavity is a wireless signal penetrating material.

[0025] By adopting the above technical solution, the smart pot cover provided by the present application has the following beneficial effects:

[0026] 1. When the pot is covered, water is mostly used in the cooking process. At this time, the temperature of the food soup (liquid phase) is basically the same as that of the anti-overflow electrode (gas phase). Therefore, the accuracy of the electrode in detecting the temperature in the pot is higher than that of the anti-dry-burning temperature sensor installed at the bottom of the pot. The stove control circuit detects the temperature of the food in the cooking process in real time according to the temperature sensor in the anti-overflow electrode, calculates the remaining cooking time and fire control, and achieves normal cooking control;

[0027] 2. Under normal circumstances, the resistance between the anti-overflow electrodes is the resistance of water vapor, which is close to infinity. When the pot overflows, the floating foam, bubbles or soup directly cause the resistance of the anti-overflow electrodes to drop rapidly, and the stove control circuit lowers the fire or even turns it off, achieving overflow detection control;

[0028] 3. If the fire goes out due to overflow, the anti-overflow electrode detects the overflow and the stove control circuit turns down or turns off the fire to avoid excessive gas leakage. When the temperature sensor at the bottom of the pot detects that the fire is out, the gas valve is completely closed, thereby achieving intelligent cooking with anti-overflow detection, optimization of overflow and flameout protection, and real-time temperature control. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0030] Figure 1 A structural diagram of a smart pot lid provided in an embodiment of the present application;

[0031] Figure 2 A structural diagram of the upper part of a pot cover provided in an embodiment of the present application;

[0032] Figure 3 A structural diagram of the lower part of the pot cover provided in an embodiment of the present application;

[0033] The following is a supplementary description of the attached drawings:

[0034] 1-pot lid body; 11-pot lid upper part; 111-wireless transceiver circuit board; 112-antenna; 113-first contact part; 114-battery; 115-first accommodating cavity; 116-first connecting part; 12-pot lid lower part; 121-anti-overflow electrode; 1211-first anti-overflow electrode; 1212-second anti-overflow electrode; 122-temperature sensor; 123-second contact part; 124-conducting wire; 125-second accommodating cavity; 1251-sealing silicone surface; 126-second connecting part; 1261-thread. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0036] The term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present application. In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "top", "bottom", etc. is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present application. In addition, the terms "first" and "second" are only used for description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may include one or more of the features explicitly or implicitly. Moreover, the terms "first", "second", etc. are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application described here can be implemented in an order other than those illustrated or described here.

[0037] When a numerical range is disclosed herein, the above range is deemed to be continuous and includes the minimum and maximum values ​​of the range, as well as each value between such minimum and maximum values. Further, when a range refers to an integer, each integer between the minimum and maximum values ​​of the range is included. In addition, when multiple ranges are provided to describe features or characteristics, the ranges can be merged. In other words, unless otherwise indicated, all ranges disclosed herein should be understood to include any and all sub-ranges included therein. For example, a specified range from "1 to 10" should be deemed to include any and all sub-ranges between a minimum of 1 and a maximum of 10. Exemplary sub-ranges of ranges 1 to 10 include, but are not limited to, 1 to 6.1, 3.5 to 7.8, 5.5 to 10, etc.

[0038] See also Figure 1 , Figure 1 A smart pot cover provided in an embodiment of the present application includes a pot cover body 1, wherein the pot cover body 1 includes a pot cover upper part 11 and a pot cover lower part 12 which are fixedly connected up and down, and a mounting hole is opened in the center of the pot cover body 1, and the pot cover lower part 12 passes through the mounting hole and is fixedly connected to the pot cover upper part 11;

[0039] The pot cover upper part 11 includes a wireless transceiver circuit board 111, an antenna 112 and a first contact portion 113, one end of the first contact portion 113 is electrically connected to the wireless transceiver circuit board 111; specifically, the wireless transceiver circuit board 111 is powered by a battery 112, the wireless transceiver circuit board 111 is electrically connected to the antenna 112 through a wire, and the wire is a coaxial wire with a shielding function; the wireless transceiver circuit board 111 is used to receive signals, and the antenna 112 is used to send the signals received by the wireless transceiver circuit board 111 to the cooker control circuit, and an antenna is also provided at one end of the cooker control circuit for receiving signals sent by the antenna at the end of the wireless transceiver circuit board 111;

[0040] The pot cover lower part 12 comprises an anti-overflow electrode 121, a temperature sensor 122 and a second contact part 123. The temperature sensor 122 is arranged in the anti-overflow electrode 121. One end of the second contact part 123 is electrically connected to the anti-overflow electrode 121 and the temperature sensor 122 through a wire 124. The other end of the second contact part 123 is electrically connected to the first contact part 113. The other end of the first contact part 113 is electrically connected to the wireless transceiver circuit board 111. The anti-overflow electrode 121 and the temperature sensor 122 are used to detect the temperature in the pot and the overflow situation.

[0041] The wireless transceiver circuit board 111 is used to receive the temperature signal and the anti-overflow signal detected by the temperature sensor 122 and the anti-overflow electrode 121, and send the received temperature signal and the anti-overflow signal to the cooker control circuit through the antenna 112. When the pot is covered with a lid, the cooking process is mostly done with water. At this time, the temperature of the food soup (liquid phase) is basically consistent with the anti-overflow electrode (gas phase). Therefore, the accuracy of the electrode detecting the temperature in the pot is higher than that of the anti-dry-burning temperature sensor installed at the bottom of the pot. The stove control circuit detects the food temperature in the cooking process in real time according to the temperature sensor in the anti-overflow electrode, calculates the remaining cooking time and firepower control, and achieves normal cooking control; in the normal non-overflowing situation, the resistance between the anti-overflow electrodes is the resistance of water vapor, which is close to infinity. When the pot overflows, the floating foam, bubbles or soup directly cause the resistance of the anti-overflow electrode to drop rapidly, and the stove control circuit lowers the fire or even turns it off to achieve overflow detection control; if the overflow causes the fire to go out, the anti-overflow electrode detects the overflow, and the stove control circuit turns down or turns off the fire to avoid excessive gas leakage. When the temperature sensor at the bottom of the pot detects that the flame is out, the gas valve is completely closed, thereby achieving intelligent cooking with anti-overflow detection, overflow flameout protection optimization, and real-time temperature control.

[0042] In a possible embodiment, see Figure 3There are two anti-overflow electrodes 121, including a first anti-overflow electrode 1211 and a second anti-overflow electrode 1212, and the temperature sensor 122 is arranged inside the first anti-overflow electrode 121 or the second anti-overflow electrode 121. Specifically, the temperature sensor 122 can be set to multiple according to the needs, and the multiple temperature sensors 122 can be set in one of the first anti-overflow electrode 1211 and the second anti-overflow electrode 1212, or can be set in the first anti-overflow electrode 1211 and the second anti-overflow electrode 1212 respectively. The anti-overflow 121 can check the temperature in the pot and the overflow situation in time, and solves the problem that the temperature sensor at the bottom of the pot will not immediately judge the flameout because the temperature of the pot still exists after the flame is turned off. The anti-overflow electrode 121 can turn down the flame before the flame is turned off to avoid excess gas leakage.

[0043] In a possible embodiment, see Figure 2 and Figure 3 The pot cover upper part 11 further includes a battery 114 and a pot cover upper shell, the pot cover upper shell includes a first accommodating cavity 115 and a first connecting portion 116, the first accommodating cavity 115 is away from the second contact portion 123 and connected to the first connecting portion 116; specifically, the first accommodating cavity 115 is used to accommodate the wireless transceiver circuit board 111, the antenna 112 and the battery 114, and the material of the first accommodating cavity 115 needs to ensure that the wireless signal can penetrate;

[0044] The battery 114 is disposed inside the first accommodating cavity 115 , or the battery 114 may also be disposed on the wireless transceiver circuit board 111 , and may supply power to the wireless transceiver circuit board 111 ;

[0045] The first contact portion 113 is disposed at an end of the first connecting portion 116 close to one end of the first accommodating cavity 115 and contacts the wireless transceiver circuit board 111;

[0046] The pot cover lower part 12 also includes a pot cover lower shell, which includes a second accommodating cavity 125 and a second connecting portion 126 ; the inner diameter of the first connecting portion 116 is the same as the outer diameter of the second connecting portion 126 , and the second connecting portion 126 is sleeved with the inner cavity of the first connecting portion 116 .

[0047] The second contact portion 123 is arranged at the end of the second connecting portion 126 away from the second accommodating cavity 125, and the portion of the anti-overflow electrode 121 close to the second connecting portion 126 is arranged in the inner cavity of the second accommodating cavity 125, and the other portion of the anti-overflow electrode 121 is exposed outside the second accommodating cavity 125, so as to facilitate the detection of the temperature in the pot and the overflow situation.

[0048] The first contact portion 113 is a metal contact surface, at least three of the metal contact surfaces are arranged on the end surface of the first connecting portion 116, the second contact portion 123 is an elastic contact point, at least three of the elastic contacts are arranged on the end surface of the second connecting portion 126, and the metal contact surface is electrically connected to the elastic contact; specifically, the metal contact surface includes a first metal contact surface, a second metal contact surface and a third metal contact surface, the first metal contact surface is arranged at the center of the end surface of the first connecting portion 116, the second metal contact surface and the third metal contact surface are respectively surrounded by the first metal contact surface through the shape of a ring The elastic contacts are arranged on the end face of the first connecting part 116, with a certain distance reserved between the first metal contact surface, the second metal contact surface and the third metal contact surface, and they do not contact each other; the three elastic contacts are arranged on the end face of the second connecting part 126 with a certain distance reserved between them, and are electrically connected to the first metal contact surface, the second metal contact surface and the third metal contact surface respectively. This connection method is simple and convenient. By sleeveing ​​the second connecting part 126 on the inner cavity of the first connecting part 116, the metal contact surfaces and elastic contacts arranged on the end faces of the second connecting part 126 and the first connecting part 116 are in contact and connected.

[0049] Or the first contact portion 113 is an elastic contact point, and the second contact portion 123 is a metal contact surface. According to requirements, the positions of the metal contact surface and the elastic contact point can be interchanged.

[0050] In a possible embodiment, see Figure 3 The first connection part 116 is provided with an internal thread on its inner wall, and the second connection part 126 is provided with an external thread 1261 on its outer wall. The second connection part 126 is connected to the first connection part 116 via the thread 1261. The threaded connection makes the connection method convenient and simple.

[0051] In a possible embodiment, see Figure 1 and Figure 3 The second connection portion 126 and the second accommodating cavity 125 are both cylindrical in shape, and the second connection portion 126 is disposed on an end surface of the second accommodating cavity 125 close to one end of the first connection portion 116;

[0052] The outer diameter of the second connecting portion 126 is smaller than the outer diameter of the second accommodating cavity 125;

[0053] The peripheral edge portions of the second accommodating cavity 125 and the second connecting portion 126 are bosses, and a sealing silicone surface 1251 is provided on the bosses. By providing the sealing silicone surface 1251 on the bosses, the second accommodating cavity 125 is in contact with the pot cover body 1 to form a seal during installation.

[0054] The temperature sensor 122 is a negative temperature coefficient thermistor (also called an NTC thermistor) with a high resistance value. As the temperature rises, the number of carriers increases and the resistance value decreases. The food temperature can be monitored in real time during the cooking process, making cooking safer and more convenient.

[0055] The material of the anti-overflow electrode 121 is a corrosion-resistant food-grade metal material. The use of corrosion-resistant food-grade metal material is healthier for the body on the one hand, and the corrosion-resistant material makes the anti-overflow electrode 121 more durable on the other hand.

[0056] In a possible embodiment, see Figure 1 , the antenna 112 is arranged in contact with the inner surface of the first accommodating cavity 115;

[0057] Or the antenna 112 is set on the wireless transceiver circuit board 111; the antenna can be an FPC antenna, and the setting position is not fixed. The setting position of the antenna 112 can be adjusted according to the specifications of the antenna 112. The antenna 112 is used to send the signal received by the wireless transceiver circuit board 111 to the cooker control circuit. An antenna is also set at one end of the cooker control circuit to receive the signal sent by the antenna at the end of the wireless transceiver circuit board 111.

[0058] The material of the first accommodating cavity 115 is a wireless signal penetrating material. In order to ensure that the temperature signal and the anti-overflow signal received by the antenna 112 are sent to the stove and the range hood control circuit, the material of the first accommodating cavity 115 is a wireless signal penetrating material, which is conducive to the transmission of signals.

[0059] The present application provides a smart pot cover, comprising a pot cover body, wherein the pot cover body comprises an upper pot cover part and a lower pot cover part fixedly connected up and down; the upper pot cover part comprises a wireless transceiver circuit board, an antenna and a first contact part electrically connected to the wireless transceiver circuit board; the lower pot cover part comprises an anti-overflow electrode, a temperature sensor and a second contact part, one end of the second contact part is electrically connected to the anti-overflow electrode and the temperature sensor through a wire, and the other end of the second contact part is electrically connected to the first contact part; the wireless transceiver circuit board receives the temperature signal and the anti-overflow signal detected by the temperature sensor and the anti-overflow electrode, and sends the received temperature signal and the anti-overflow signal to the cooker control circuit through the antenna, thereby achieving intelligent cooking with anti-overflow detection, overflow flameout protection optimization and real-time temperature control.

[0060] The above description is only an optional embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A smart pot cover, characterized in that: The invention comprises a pot cover body (1), wherein the pot cover body (1) comprises a pot cover upper part (11) and a pot cover lower part (12) which are fixedly connected up and down; The pot cover upper part (11) comprises a wireless transceiver circuit board (111), an antenna (112) and a first contact portion (113), wherein one end of the first contact portion (113) is electrically connected to the wireless transceiver circuit board (111); The lower part (12) of the pot cover comprises an anti-overflow electrode (121), a temperature sensor (122) and a second contact portion (123); the temperature sensor (122) is arranged inside the anti-overflow electrode (121); one end of the second contact portion (123) is electrically connected to the anti-overflow electrode (121) and the temperature sensor (122) via a wire (124); and the other end of the second contact portion (123) is electrically connected to the first contact portion (113); The wireless transceiver circuit board (111) is used to receive the temperature signal and the overflow prevention signal detected by the temperature sensor (122) and the overflow prevention electrode (121), and to send the received temperature signal and overflow prevention signal to the cooker control circuit via the antenna (112).

2. The smart pot cover according to claim 1, characterized in that: There are two anti-overflow electrodes (121), including a first anti-overflow electrode (1211) and a second anti-overflow electrode (1212); the temperature sensor (122) is arranged inside the first anti-overflow electrode (1211) or the second anti-overflow electrode (1212).

3. The smart pot cover according to claim 1, characterized in that: The pot cover upper part (11) further comprises a battery (114) and a pot cover upper shell, the pot cover upper shell comprises a first accommodating cavity (115) and a first connecting portion (116), the first accommodating cavity (115) being away from the second contact portion (123) and connected to the first connecting portion (116); The battery (114) is arranged inside the first accommodating cavity (115) and is used to supply power to the wireless transceiver circuit board (111); The first contact portion (113) is arranged at an end portion of the first connecting portion (116) close to one end of the first accommodating cavity (115).

4. The intelligent pot cover according to claim 3, characterized in that: The pot cover lower part (12) further comprises a pot cover lower shell, and the pot cover lower shell comprises a second accommodating cavity (125) and a second connecting part (126); The second contact portion (123) is arranged at the end of the second connecting portion (126) away from one end of the second accommodating cavity (125), and the portion of the anti-overflow electrode (121) close to one end of the second connecting portion (126) is arranged in the inner cavity of the second accommodating cavity (125).

5. The intelligent pot cover according to claim 4, characterized in that: The first contact portion (113) is a metal contact surface, at least three of the metal contact surfaces are arranged on the end surface of the first connecting portion (116), the second contact portion (123) is an elastic contact point, at least three of the elastic contact points are arranged on the end surface of the second connecting portion (126), and the metal contact surface is electrically connected to the elastic contact; Or the first contact portion (113) is an elastic contact point, and the second contact portion (123) is a metal contact surface.

6. The intelligent pot cover according to claim 4 or 5, characterized in that: An internal thread is provided on the inner wall of the first connecting portion (116), an external thread (1261) is provided on the outer wall of the second connecting portion (126), and the second connecting portion (126) is connected to the first connecting portion (116) via the thread (1261).

7. The intelligent pot cover according to claim 4, characterized in that: The second connection portion (126) and the second accommodating cavity (125) are both cylindrical in shape, and the second connection portion (126) is arranged on an end surface of the second accommodating cavity (125) close to one end of the first connection portion (116); The outer diameter of the second connecting portion (126) is smaller than the outer diameter of the second accommodating cavity (125); The peripheral edge portions of the fitting surfaces of the second accommodating cavity (125) and the second connecting portion (126) are bosses, and a sealing silicone surface (1251) is provided on the bosses.

8. The smart pot cover according to claim 1, characterized in that: The temperature sensor (122) is a negative temperature coefficient thermistor.

9. The smart pot cover according to claim 1, characterized in that: The material of the anti-overflow electrode (121) is a corrosion-resistant food-grade metal material.

10. The intelligent pot cover according to claim 3, characterized in that: The antenna (112) is arranged in contact with the inner surface of the first accommodating cavity (115); Or the antenna (112) is arranged on the wireless transceiver circuit board (111); The material of the first accommodating cavity (115) is a wireless signal penetrating material.

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