Split type cookware and communication method thereof

Abstract

The invention relates to a split cookware and a communication method thereof.The split cookware comprises a base, a conductive circular ring is arranged on the base, a bearing face is defined by the conductive circular ring on the top face of the base, and a conductive contact is arranged in the bearing face; the metal cookware is placed on the bearing surface, the bottom of the metal cookware is in contact with the conductive contact to form a first electric connection branch circuit, the electric appliance part is fixed on the metal cookware, a conductive contact is arranged at the bottom of the electric appliance part, and the conductive contact abuts against the conductive circular ring to form a second electric connection branch circuit; an electric device is arranged in the electric appliance part, two leading-out ends of the electric device are electrically connected with the conductive contact and the metal cookware respectively, and the electric device and the base form an electric loop giving consideration to power supply and communication through a first electric connection branch and a second electric connection branch; according to the split type cookware, the metal cookware can be placed on the base at any angle, and meanwhile electric devices on the metal cookware can still be electrically connected with the base.

Description

Technical Field

[0001] The present invention relates to the field of cookware, and in particular to a split cookware and a communication method thereof. Background Art

[0002] In home kitchens, electric cooking machines such as electric pressure cookers and electric rice cookers are common kitchen appliances. The prior art electric cooking machines, as shown in Chinese patent document CN201510084586.9, mainly include a pot body, a pot inner shell, and a pot lid fixedly connected to the pot inner shell. An electric heating device is installed inside the pot body, and the heating portion of the electric heating device contacts the bottom of the pot inner shell. A pressure sensing device is provided in the pot lid, and an electromagnetic exhaust valve is installed on the pot lid. The pressure sensing device is electrically connected to the electromagnetic exhaust valve, and the pot lid is plug-in connected to the pot body via an electrical plug structure.

[0003] In the above-mentioned prior art, since power supply and signal communication are required simultaneously during the use of the pressure sensing device and the electromagnetic exhaust valve, the pot lid and the pot body are connected using an electric plug structure such as the prior art patent number: CN202221045885.3. The electric plug has an N pole, an L pole and a ground wire for power supply, and has D1 and D2 data terminals for signal communication. Therefore, when the pot body is placed on the pot body, in order to achieve electrical coupling between the pot lid and the pot body, there is only one placement angle. In addition, in order to meet the power supply and communication requirements, the N pole, L pole, ground wire, D1 and D2 data all require independent physical connections, which increases the complexity of the logical connection and reduces production efficiency.

[0004] If the electric plug of this structure is not used for power supply and signal communication, the pot lid can only be hinged on the pot body or the pot inner body, and the power line or signal line can be passed through the hinge to be electrically connected to the electrical components on the pot lid. Alternatively, wireless power supply and wireless communication can be used, but this method will increase production costs. Therefore, a split cookware and its communication method are needed to provide a new solution to the above-mentioned existing problems for consumers to choose and use. Summary of the Invention

[0005] The object of the present invention is to provide a split cookware with a simple and reasonable structure, convenient installation and stable structure.

[0006] A split cookware, comprising: A base, wherein the base is provided with a circle of conductive rings, the conductive rings are arranged on the top surface of the base to form a receiving surface, and a conductive contact is provided on the receiving surface; The metal cookware is placed in a split manner on the receiving surface, and the bottom of the metal cookware touches the conductive contact and forms a first electrical connection branch. The electrical part is fixed to the metal cookware, and a conductive contact is provided at the bottom of the electrical part, and the conductive contact abuts against the conductive ring to form a second electrical connection branch; The purpose of the present invention can also be solved by the following technical measures: As a more specific solution, an electrical device is provided in the electrical part, and the two lead ends of the electrical device are electrically connected to the conductive contact and the metal cookware respectively. The electrical device forms an electrical circuit with the base through the first electrical connection branch and the second electrical connection branch, which takes into account both power supply and communication.

[0007] As a further solution, a host circuit is provided in the base, the host circuit includes a first PCB board, and the first PCB board is electrically connected to the conductive ring and the conductive contact; a slave circuit is provided in the electrical part, the slave circuit includes a second PCB board, and the second PCB board is connected between the electrical device and the first electrical connection branch and the second electrical connection branch.

[0008] As a further solution, the metal cookware includes a metal pot body and a pot lid, and the split pot lid is arranged in the pot mouth of the metal pot body; the electrical part includes a pot connection module fixed on the side of the metal pot body and a lid connection module fixed on the pot lid, the lid connection module is correspondingly connected and matched with the pot connection module, and the conductive contact is arranged on the bottom surface of the pot connection module.

[0009] As a further solution, the electrical device is arranged in the pot connection module, and the electrical device is directly electrically connected to the conductive contact through a line, or the electrical device is arranged in the cover connection module, and the cover connection module is provided with an upper coupling member electrically connected to at least one lead-out end of the electrical device, and the pot connection module is provided with a lower coupling member electrically in contact with the upper coupling member, and the lower coupling member is electrically connected to the conductive contact.

[0010] As a further solution, the lid connecting module is provided with a pressure relief valve connected to the inner cavity of the metal cookware and a push rod for controlling the on and off of the pressure relief valve; the electrical component includes a solenoid valve, which is fixed in the pot connecting module and its movable valve core is movably extended above the pot connecting module. When the solenoid valve is energized, it pushes the push rod to drive the pressure relief valve to open the inner cavity of the metal cookware.

[0011] As a further solution, an opening is provided on the bottom surface of the pot connection module, and the contact end of the conductive contact extends out of the pot connection module through the opening. The corresponding conductive contact in the pot connection module is connected to an elastic member seat, and the elastic member seat is provided with a first elastic member that abuts against the conductive contact, and the conductive contact elastically abuts against the conductive ring through the first elastic member.

[0012] As a further solution, the conductive contact is arranged at the center of the receiving surface, and the conductive contact includes a metal shell, and a second elastic member is connected to the metal shell. The metal shell elastically touches the bottom of the metal cookware through the second elastic member.

[0013] As a further solution, a temperature sensing element is fixedly provided in the metal shell. The temperature sensing element elastically moves up and down following the metal shell. The temperature sensing element and the metal shell are combined to form a temperature sensing probe.

[0014] As a further solution, the pot connection module includes a handle base connected to the outer wall of the metal pot body, the handle base is connected to a lower handle, and the conductive contact is arranged on the bottom surface of the handle base; the lid connection module includes an upper handle, and the upper handle and the lower handle are arranged correspondingly, and the pot lid is locked at the pot mouth of the metal pot body by snapping the upper handle and the lower handle together.

[0015] A communication method for a split cooker includes the following steps: S1, circuit power supply process; When the PTX power supply control port of the host circuit is at a high level, the Q5 switch module and the Q4 switch module in the host circuit are turned on, so that the load of the slave circuit is powered; The PRX communication port of the host circuit is in a high-impedance state, and the level of the PRX communication port is clamped at 5V through D2, so that it is not affected by the voltage of the host circuit; S2, circuit communication process; a. Communication boot code: When the host circuit starts communication, the PTX power supply control port sends a boot code, the slave circuit disconnects the load, releases the main circuit, and prepares for communication; b. Energy storage and low-power operation: The C4 energy storage module in the slave circuit stores energy and provides energy to the slave circuit to maintain its low-power operation; c. Data transmission and accelerated level release: The PTX power supply control port starts to send data, and the PRX communication port simultaneously accelerates the release of the level to increase communication speed. While sending data, the PTX power supply control port will continue to intermittently charge the C4 energy storage module to extend the operation time of the slave circuit; S3, communication return process; a. When the data transmission of the PTX power supply control port is completed, the main circuit is disconnected by controlling the Q5 switch module and the Q4 switch module. At the same time, the PRX communication port enters the data receiving state and waits for the feedback data sent by the slave circuit.

[0016] The beneficial effects of the present invention are as follows: The present invention provides a split cookware and a communication method thereof. This split cookware utilizes the metal cookware as a conductor, forming an electrical connection branch when in contact with a conductive contact. Furthermore, the electrical portion of the metal cookware, which includes electrical components, utilizes the conductive contacts at the bottom to abut against a conductive ring to form another electrical connection branch. This allows the metal cookware to be placed on a base at any angle. Furthermore, the metal cookware placed on the base can be rotated freely during power supply or communication, while maintaining electrical connection between the electrical components on the metal cookware and the base.

[0017] During use, the first electrical connection branch and the second electrical connection branch are controlled by circuits, and the functions of power supply and signal communication are taken into account on a pair of lines at the same time, which greatly saves the length of physical connection and multi-pole coupling structure, simplifies the complexity of logical connection, and has the advantages of small online voltage loss and high communication quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a structural diagram of Example 1 of the present invention.

[0019] Figure 2 It is a schematic diagram of the cross-sectional structure of the whole machine in the present invention.

[0020] Figure 3 It is a schematic diagram of the cross-sectional structure of the base in the present invention.

[0021] Figure 4 Schematic diagram of the conductive contact structure of the present invention.

[0022] Figure 5 Schematic diagram of the conductive contact structure in the present invention.

[0023] Figure 6 This is a structural diagram of Example 2 of the present invention.

[0024] Figure 7 This is the power supply and communication circuit diagram of the present invention. DETAILED DESCRIPTION

[0025] The present invention will be further described below with reference to the accompanying drawings and examples. Example 1:

[0026] like Figures 1 to 3 As shown, a split cooker includes: A base 1 is provided with a conductive ring 11, the conductive ring 11 is provided on the top surface of the base 1 to form a receiving surface 12, and a conductive contact 13 is provided on the receiving surface 12; The metal pot 2 is placed in a split manner on the receiving surface 12, and the bottom of the pot touches the conductive contact 13 to form a first electrical connection branch. The electrical part 3 is fixed to the metal cookware 2. A conductive contact 31 is provided at the bottom of the electrical part 3. The conductive contact 31 contacts the conductive ring 11 and forms a second electrical connection branch. The electrical part 3 is provided with an electrical device 4, and the two lead ends of the electrical device 4 are electrically connected to the conductive contact 31 and the metal cookware 2 respectively. The electrical device 4 forms an electrical circuit with the base 1 through the first electrical connection branch and the second electrical connection branch, which takes into account both power supply and communication.

[0027] This split-type cookware utilizes the metal cookware 2 as a conductor, forming an electrical connection branch when in contact with the conductive contacts 13. Furthermore, the electrical portion 3 of the metal cookware 2, which carries the electrical components 4, utilizes the conductive contacts 31 at its bottom to contact the conductive ring 11, forming another electrical connection branch. This allows the metal cookware 2 to be placed on the base 1 at any angle. Furthermore, the metal cookware 2 placed on the base 1 can be rotated freely during power or communication, while maintaining electrical connection between the electrical components 4 on the metal cookware 2 and the base.

[0028] The base 1 includes a host circuit, which includes a first PCB board 5, which is electrically connected to the conductive ring 11 and the conductive contact 13. The electrical component 3 includes a slave circuit, which includes a second PCB board 6, which is connected between the electrical device 4 and the first and second electrical connection branches. Through the control of the first and second PCB boards 5, 6, a pair of circuits simultaneously provides both power supply and communication functions. The metal cookware 2 includes a metal pot body 21 and a pot cover 22, and the pot cover 22 is a split cover arranged in the pot mouth of the metal pot body 21; the electrical part 3 includes a pot connection module fixed on the side of the metal pot body 21 and a lid connection module fixed on the pot cover 22, the lid connection module is correspondingly connected and matched with the pot connection module, and the conductive contact 31 is arranged on the bottom surface of the pot connection module.

[0029] In this embodiment, the cooker is an electric pressure cooker, and the electrical component 4 is specifically a solenoid valve 41. The solenoid valve 41 is disposed in the pot connection module. The solenoid valve 41 is directly electrically connected to the conductive contact 31 via a circuit, and the movable valve core of the solenoid valve 41 movably extends above the pot connection module. The lid connection module is provided with a pressure relief valve 9 connected to the inner cavity of the metal pot 2 and a push rod 10 for controlling the on and off of the pressure relief valve 9. When in use, the solenoid valve 41 is energized and pushes the push rod 10 to drive the pressure relief valve 9 to operate to open the inner cavity of the metal pot 2.

[0030] The base 1 is also provided with an electromagnetic heating coil 14 and a control panel 15. The electromagnetic heating coil 14 can use electromagnetic heating to heat the food in the metal pot 2, and the control panel 15 can give a signal to the electrical device 4. In the pressure cooker, the operation of the pressure relief valve 9 is controlled by the signal, so that the user's hands do not need to be close to the pressure relief valve 9, avoiding hand burn accidents.

[0031] like Figure 4 As shown, the bottom surface of the pot connection module is provided with an opening 101, through which the contact end of the conductive contact 31 extends out of the pot connection module. An elastic member seat 102 is connected to the corresponding conductive contact 31 in the pot connection module. The elastic member seat 102 is provided with a first elastic member 103 that abuts against the conductive contact 31. The conductive contact 31 elastically abuts against the conductive ring 11 via the first elastic member 103. The first elastic member 103 can be a return spring or a spring. When the metal cookware 2 is placed on the base, the first elastic member 103 can ensure that the conductive contact 31 contacts the conductive ring 2. On the one hand, it can ensure sufficient contact, and on the other hand, it can prevent the conductive contact 31 from lifting the metal cookware 2.

[0032] like Figure 5 As shown, the conductive contact 13 is arranged at the center of the receiving surface 12, and the conductive contact 13 includes a metal shell 131. The metal shell 131 is connected to a second elastic member 132. The metal shell 131 elastically contacts the bottom of the metal cookware 2 through the second elastic member 132; when the metal cookware 2 is placed on the base 1, the elastically moving metal shell 131 presses the conductive contact 13 downward, and utilizes the second elastic member 132 to ensure that the metal shell 131 is in full contact with the bottom of the cookware, and prevents the conductive contact 13 from lifting the metal cookware 2.

[0033] The receiving surface 12 can be a positioning concave surface 121 that matches the shape of the bottom of the metal pot 2. The positioning concave surface 121 is used to face the metal pot 2 to achieve positioning and placement, ensuring that the metal pot 2 and the conductive ring 11 remain concentric. After the metal pot 2 is rotated at will, the conductive contact 31 can contact the conductive ring 11.

[0034] The second elastic member 132 may be a return spring or a spring.

[0035] A temperature sensing element 133 is fixedly disposed in the metal shell 131 . The temperature sensing element 133 elastically moves up and down following the metal shell 131 . The temperature sensing element 133 and the metal shell 131 together form a temperature sensing probe, enabling the conductive contact 13 to simultaneously perform the functions of conducting electricity and conducting heat and sensing temperature.

[0036] The pot connection module includes a handle base 23 connected to the outer wall of the metal pot body 21, a lower handle 24 is connected to the handle base 23, and the conductive contact 31 is provided on the bottom surface of the handle base 23; the lid connection module includes an upper handle 25, which is provided corresponding to the lower handle 24. The upper handle 25 and the lower handle 24 are buckled together to lock the pot lid 22 at the pot mouth of the metal pot body 21; In this embodiment, the cooker is a pressure cooker. The lower handle 24 can lift and place the metal pot body 21 alone, and the upper handle 25 can lift and place the pot cover 22 alone. When in use, the pot cover 22 is rotated to align the upper handle 25 and the lower handle 24 and then buckled and locked, so that the pot cover 22 is fixed at the pot mouth of the metal pot body 21 to form a sealed inner cavity. The upper handle 25 and the lower handle 24 are connected to form a pot handle assembly, so that the user can hold the upper handle 25 and the lower handle 24 with one hand to lift and place the entire metal pot 2. Example 2:

[0037] In the second embodiment, the electrical device 4 is disposed in the cover connection module. The cover connection module is provided with an upper coupling member 7 electrically connected to at least one lead-out terminal of the electrical device 4. The pot connection module is provided with a lower coupling member 8 electrically contacting the upper coupling member 7. The lower coupling member 8 is electrically connected to the conductive contact 31. In this embodiment, the electrical device 4 can be other sensing elements or control modules or display panels. Therefore, the cover connection module is electrically connected to the pot connection module through the upper coupling member 7 and the lower coupling member 8, so that the pot cover 22 can be disassembled in a split manner for easy cleaning. The upper coupling member 7 and the lower coupling member 8 can be two electrical contacts. After the two lead ends of the electrical device 4 are introduced into the pot connection module, one of the lead ends is electrically contacted with the metal pot body 21. Alternatively, the pot cover 22 is a metal pot cover, and the metal pot cover is naturally electrically connected after being placed on the metal pot body 21. At this time, the upper coupling member 7 and the lower coupling member 8 only need a single electrical contact. One lead end of the electrical device 4 is introduced into the pot connection module and electrically connected to the conductive contact 31, and the other lead end is directly electrically connected to the metal pot cover.

[0038] A communication method for a split cooker Figure 7 As shown in the circuit diagram, it includes the following processes: S1, circuit power supply process; When the PTX power supply control port of the host circuit is at a high level, the Q5 switch module and the Q4 switch module in the host circuit are turned on, so that the load of the slave circuit is powered; The PRX communication port of the host circuit is in a high-impedance state, and the level of the PRX communication port is clamped at 5V through D2, so that it is not affected by the voltage of the host circuit; S2, circuit communication process; a. Communication boot code: When the host circuit starts communication, the PTX power supply control port sends a boot code, the slave circuit disconnects the load, releases the main circuit, and prepares for communication; b. Energy storage and low-power operation: The C4 energy storage module in the slave circuit stores energy and provides energy to the slave circuit to maintain its low-power operation; c. Data transmission and accelerated level release: The PTX power supply control port starts to send data, and the PRX communication port simultaneously accelerates the release of the level to increase communication speed. While sending data, the PTX power supply control port will continue to intermittently charge the C4 energy storage module to extend the operation time of the slave circuit; S3, communication return process; a. When the data transmission of the PTX power supply control port is completed, the main circuit is disconnected by controlling the Q5 switch module and the Q4 switch module. At the same time, the PRX communication port enters the data receiving state and waits for the feedback data sent by the slave circuit (such as EOC).

[0039] By utilizing the above communication method, the functions of power supply and signal communication can be taken into account on a pair of lines at the same time, which greatly saves the length of physical connection and multi-pole coupling structure, simplifies the complexity of logical connection, and has the advantages of small voltage loss on the line and high communication quality.

[0040] In addition, D1 and D2 in the master circuit and the slave circuit are voltage-stabilizing diodes, which are used to prevent the IO voltage from exceeding the rated voltage, thereby protecting the stability and safety of the circuit.

[0041] The above is a preferred embodiment of the present invention, which shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention as claimed, which is defined by the appended claims and their equivalents.

Claims

1. A split cookware, characterized in that: include: A base (1), wherein a conductive ring (11) is provided on the base (1), the conductive ring (11) is formed on the top surface of the base (1) to form a receiving surface (12), and a conductive contact (13) is provided on the receiving surface (12); A metal pot (2), wherein the metal pot (2) is placed in a split manner on a receiving surface (12), and the pot bottom contacts the conductive contact (13) to form a first electrical connection branch. An electrical part (3), the electrical part (3) being fixed on the metal cookware (2), a conductive contact (31) being provided at the bottom of the electrical part (3), and the conductive contact (31) being in contact with the conductive ring (11) and forming a second electrical connection branch; An electrical device (4) is provided in the electrical part (3), and two lead ends of the electrical device (4) are electrically connected to the conductive contact (31) and the metal cookware (2) respectively. The electrical device (4) forms an electrical circuit with the base (1) through the first electrical connection branch and the second electrical connection branch, which takes into account both power supply and communication.

2. A split cookware according to claim 1, characterized in that The base (1) is provided with a host circuit, the host circuit includes a first PCB board (5), and the first PCB board (5) is electrically connected to the conductive ring (11) and the conductive contact (13); the electrical part (3) is provided with a slave circuit, the slave circuit includes a second PCB board (6), and the second PCB board (6) is connected between the electrical device (4) and the first electrical connection branch and the second electrical connection branch.

3. A split cookware according to claim 1 or 2, characterized in that The metal pot (2) comprises a metal pot body (21) and a pot cover (22), wherein the pot cover (22) is a split cover arranged in the pot mouth of the metal pot body (21); the electrical part (3) comprises a pot connection module fixed to the side of the metal pot body (21) and a cover connection module fixed to the pot cover (22), wherein the cover connection module is correspondingly connected and matched with the pot connection module, and the conductive contact (31) is arranged on the bottom surface of the pot connection module.

4. A split cookware according to claim 3, characterized in that The electrical device (4) is arranged in the pot connection module, and the electrical device (4) is directly electrically connected to the conductive contact (31) through a line. Alternatively, the electrical device (4) is arranged in the cover connection module, and the cover connection module is provided with an upper coupling member (7) electrically connected to at least one lead-out end of the electrical device (4). The pot connection module is provided with a lower coupling member (8) electrically contacting the upper coupling member (7), and the lower coupling member (8) is electrically connected to the conductive contact (31).

5. The split cookware according to claim 4, characterized in that The cover connection module is provided with a pressure relief valve (9) communicating with the inner cavity of the metal pot (2) and a push rod (10) for controlling the on / off switching of the pressure relief valve (9); the electrical device (4) includes a solenoid valve (41), the solenoid valve (41) is fixed in the pot connection module, and its movable valve core is movably extended above the pot connection module. When the solenoid valve (41) is energized, it pushes the push rod (10) to drive the pressure relief valve (9) to operate and open the inner cavity of the metal pot (2).

6. The split cookware according to claim 3, characterized in that The bottom surface of the pot connection module is provided with an opening (101), and the contact end of the conductive contact (31) extends out of the pot connection module through the opening (101). The corresponding conductive contact (31) in the pot connection module is connected to an elastic member seat (102), and a first elastic member (103) is provided on the elastic member seat (102) to abut against the conductive contact (31). The conductive contact (31) elastically abuts against the conductive ring (11) through the first elastic member (103).

7. The split cookware according to claim 1, characterized in that The conductive contact (13) is arranged at the center of the receiving surface (12), and the conductive contact (13) includes a metal shell (131). The metal shell (131) is connected to a second elastic member (132). The metal shell (131) elastically contacts the bottom of the metal pot (2) through the second elastic member (132).

8. The split cookware according to claim 7, characterized in that A temperature sensing element (133) is fixedly arranged in the metal shell (131). The temperature sensing element (133) moves elastically up and down following the metal shell (131). The temperature sensing element (133) and the metal shell (131) are combined to form a temperature sensing probe.

9. The split cookware according to claim 3, characterized in that The pot connection module includes a handle base (23) connected to the outer wall of the metal pot body (21), a lower handle (24) is connected to the handle base (23), and the conductive contact (31) is arranged on the bottom surface of the handle base (23); the lid connection module includes an upper handle (25), the upper handle (25) and the lower handle (24) are correspondingly arranged, and the pot lid (22) is locked at the pot mouth of the metal pot body (21) by buckling the upper handle (25) and the lower handle (24).

10. A communication method for a split cooker, characterized in that: The following processes are included: S1, circuit power supply process; When the PTX power supply control port of the host circuit is at a high level, the Q5 switch module and the Q4 switch module in the host circuit are turned on, so that the load of the slave circuit is powered; The PRX communication port of the host circuit is in a high-impedance state, and the level of the PRX communication port is clamped at 5V through D2, so that it is not affected by the voltage of the host circuit; S2, circuit communication process; a. Communication boot code: When the host circuit starts communication, the PTX power supply control port sends a boot code, the slave circuit disconnects the load, releases the main circuit, and prepares for communication; b. Energy storage and low-power operation: The C4 energy storage module in the slave circuit stores energy and provides energy to the slave circuit to maintain its low-power operation; c. Data transmission and accelerated level release: The PTX power supply control port starts to send data, and the PRX communication port simultaneously accelerates the release of the level to increase communication speed. While sending data, the PTX power supply control port will continue to intermittently charge the C4 energy storage module to extend the operation time of the slave circuit; S3, communication return process; a. When the data transmission of the PTX power supply control port is completed, the main circuit is disconnected by controlling the Q5 switch module and the Q4 switch module. At the same time, the PRX communication port enters the data receiving state and waits for the feedback data sent by the slave circuit.

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