Pressure cooking utensil
By adopting the matching mechanism of multiple signal transceiver devices and the design of signal barriers in the pressure cooking utensils, the problem of restricted function usage caused by failure of the detection device in the prior art is solved, and the accurate judgment and cooking of the pot lid status is achieved. Reliable operation of the program.
Patent Information
- Application Number
- CN202323392135.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-12
- Publication Date
- 2025-01-10
- Estimated Expiration
- 2033-12-12
AI Technical Summary
Existing pressure cooking appliances cannot accurately determine whether the detection device is invalid, resulting in limited function use, affecting the user experience, and may lead to problems such as overflowing pots and dry burning.
The coordination mechanism of a variety of signal transceiver devices is adopted, including the first signal transceiver device, the second signal transceiver device and the third signal transceiver device. Through the movement of the signal barrier member, the control unit can accurately determine the opening and closing state of the pot cover, and Alarm in abnormal situations.
Improve the diversity and accuracy of detection functions, ensure the accuracy and reliability of cooking procedures, and avoid functional limitations and safety hazards caused by detection failure.
Smart Images
Figure CN222323329U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of kitchen appliances, and in particular relates to a pressure cooking device. Background Art
[0002] A pressure cooking device generally includes a pot body and a pot cover. Before pressure cooking, the pot cover needs to be covered with the pot body and locked to safely perform pressure cooking. Therefore, the pressure cooking device is usually provided with a detection device for detecting the opening and closing state of the pot cover. Only when the pot cover is in place can the pressure cooking device be started for pressure cooking.
[0003] Under normal circumstances, the detection device (such as a conventional magnetic switch) can only detect the two situations of "signal" and "no signal". Specifically, the pot body is provided with a magnetic switch, and the pot lid is provided with a magnetic part. When the pot lid is closed on the pot body, the magnetic switch senses the presence of the magnetic part, and the program determines that the lid is closed, otherwise it is determined that the lid is open.
[0004] Since the detection device has only the above two triggering states, the control unit cannot determine whether the lid opening and closing detection device is invalid according to the state of the detection device, which will limit the use of the pressure cooking device function and affect the user experience. For example, when the magnetic switch is open or the magnetic part on the pot lid is invalid, no matter whether the pot lid is closed or not, the magnetic switch can never sense the magnetic part. The control unit will always think that the pressure cooking device is in the lid open state and restrict the cooking function. The user can only choose functions that can be run in the lid open state, such as cooking with the lid open and collecting juice on high heat. Conversely, when the magnetic switch is short-circuited, no matter whether the pot lid is closed or not, the magnetic switch always remains in the triggered state, and the control unit will always think that the pressure cooking device is in the lid closed state. In this state, no matter whether the user closes the lid or not, the pressure cooking device can still perform pressure cooking, which may cause problems such as overflowing the pot and dry burning. Utility Model Content
[0005] The utility model provides a pressure cooking device to solve the problem that the pressure cooking device cannot judge whether a detection device fails according to the triggering state of the detection device, and the detection result is inaccurate, which affects the normal function of the pressure cooking device.
[0006] The technical solution adopted by the utility model is:
[0007] A pressure cooking device comprises a pot body and a pot cover, wherein the pot cover has a closed state and an open state, the pot body is provided with a first signal transceiver and a second signal transceiver, and the pot cover is provided with a third signal transceiver. In the open state, the first signal transceiver cooperates with the second signal transceiver to be triggered, and in the closed state, the first signal transceiver cooperates with the third signal transceiver to be triggered or cooperates with the second signal transceiver and the third signal transceiver to be triggered.
[0008] The pressure cooking device of the present invention also has the following additional technical features:
[0009] The first signal transceiver device is a transmitter, the second signal transceiver device is a first receiver, and the third signal transceiver device is a second receiver. In the open cover state, the transmitter triggers the first receiver, and in the closed cover state, the transmitter triggers the second receiver.
[0010] The first signal transceiver is a receiving element, the second signal transceiver is a first transmitting element, and the third signal transceiver is a second transmitting element. In the open cover state, the first transmitting element triggers the receiving element, and in the closed cover state, the second transmitting element triggers the receiving element, or the first transmitting element and the second transmitting element jointly trigger the receiving element.
[0011] The pressure cooking device further comprises a signal blocking member, which is located between the receiving member and the first transmitting member in the closed state so that the second transmitting member triggers the receiving member, and the transmitting frequencies of the first transmitting member and the second transmitting member are different.
[0012] The pressure cooking appliance further comprises a signal blocking member, which is movable relative to the pot body. In the open lid state, the signal blocking member is located between the first signal transceiver device and the third signal transceiver device so that the first signal transceiver device cooperates with the second signal transceiver device. In the closed lid state, the signal blocking member is located between the first signal transceiver device and the second signal transceiver device so that the first signal transceiver device cooperates with the third signal transceiver device.
[0013] The first signal transceiver device, the second signal transceiver device and the third signal transceiver device are all configured as structures capable of transmitting and / or receiving photoelectric signals. In the closed state, the signal blocking member is located between the first signal transceiver device and the second signal transceiver device to block the light signal. In the open state, the signal blocking member is located between the first signal transceiver device and the third signal transceiver device to block the light signal.
[0014] The signal blocking member includes a first blocking portion provided on the pot body, and a second blocking portion provided on the pot lid, the first blocking portion can move under the drive of the pot lid, in the closed state, the second blocking portion is located between the first signal transceiver device and the second signal transceiver device, in the open state, the first blocking portion is located above the first signal transceiver device.
[0015] The pot body is provided with a laterally extending guide channel, the first blocking portion has a guide section located in the guide channel, and a shielding section for shielding the first signal transceiver device, and the pressure cooking appliance also includes an elastic reset member arranged in the guide channel, and the elastic reset member acts on the guide section.
[0016] The first signal transceiver device and the third signal transceiver device are both arranged on the rear side of the pot body, and the third signal transceiver device is arranged on the rear side of the pot cover corresponding to the position of the first signal transceiver device.
[0017] The pot body is provided with a control unit electrically connected to the first signal transceiver device, the second signal transceiver device and the third signal transceiver device, the pot cover is rotatably connected to the pot body, and a wire passing space for the wire to pass through is provided at the connection between the pot cover and the pot body; alternatively, the pot cover can be removed from the pot body, and the pot cover and the pot body are respectively provided with coupling structures so that the third signal transceiver device is electrically connected to the control unit in the closed state.
[0018] Due to the adoption of the above technical solution, the beneficial effects achieved by the utility model are as follows:
[0019] 1. In the utility model, the pot body is provided with a first signal transceiver and a second signal transceiver, and the pot lid is provided with a third signal transceiver, so as to form a plurality of triggering states and a state without cooperation through the cooperation of the three signal transceivers, so that the control unit can detect the opening and closing of the lid and the effectiveness of each signal transceiver according to the triggering state of each signal transceiver, thereby greatly improving the diversity of the detection function and the accuracy of the detection result, so that the control unit of the pressure cooking appliance can make an effective response according to the actual state of the pot lid, and ensure the accurate and reliable operation of the cooking program.
[0020] Specifically, when the pot lid is in the open state, the first signal transceiver on the pot body cooperates with the second signal transceiver to form a trigger, and the control unit obtains a first signal, indicating that the pot lid is not fully closed, and pressure cooking cannot be performed at this time, and only related functions of open-lid cooking can be used. When the pot lid is fully closed, the first signal transceiver on the pot body cooperates with the third signal transceiver on the pot lid to form a trigger, or the first signal transceiver, the second signal transceiver and the third signal transceiver cooperate to form a trigger, and a second signal is sent to the control unit at this time, indicating that the pot lid is fully closed and pressure cooking can be performed. When the control unit does not receive any signal, it indicates that the signal transceiver is in an open circuit state or is damaged. Similarly, when the control unit receives a signal value other than the first signal and the third signal, it also indicates that the signal transceiver is in an abnormal state, and an alarm can be issued to prompt the user to perform maintenance.
[0021] 2. As a preferred embodiment of the utility model, the pressure cooking device further comprises a signal blocking member, which can move relative to the pot body. In the open lid state, the signal blocking member is located between the first signal transceiver device and the third signal transceiver device so that the first signal transceiver device cooperates with the second signal transceiver device. In the closed lid state, the signal blocking member is located between the first signal transceiver device and the second signal transceiver device so that the first signal transceiver device cooperates with the third signal transceiver device. The signal blocking member can move with the movement of the pot lid, so that when the lid is opened, it is blocked between the first signal transceiver device and the third signal transceiver device. At this time, the signal blocking member blocks the signal between the first signal transceiver device and the third signal transceiver device, cuts off the signal transmission between the two, so that the first signal transceiver device can only be triggered in cooperation with the second signal transceiver device, so that the control unit obtains the signal of opening the lid. The signal blocking member can also move to the position between the first signal transceiver device and the second signal transceiver device after the pot lid is closed, thereby cutting off the signal transmission between the two, so that the first signal transceiver device can only cooperate with the third signal transceiver device to trigger, so that the control unit can obtain the lid closing signal. The signal blocking member allows the first signal transceiver device to only selectively cooperate with the second signal transceiver device or the third signal transceiver device, improving the stability of the cooperation and the signal value sent to the control unit, so that the control unit can accurately judge the open and closed state of the pot lid according to the different signal values, thereby making an accurate selection of the cooking mode.
[0022] 3. As a preferred embodiment of the present invention, the first signal transceiver device, the second signal transceiver device and the third signal transceiver device are all configured as structures capable of transmitting and / or receiving photoelectric signals. In the closed state, the signal blocking member is located between the first signal transceiver device and the second signal transceiver device to block the second signal transceiver device. In the closed state, the signal blocking member is located between the first signal transceiver device and the third signal transceiver device to block the third signal transceiver device. In this embodiment, the first signal transceiver device, the second signal transceiver device and the third signal transceiver device are all photoelectric elements, which are triggered by sensing light signals. The signal blocking member can block the light signals, so that when in different positions, the light signals emitted by a specific signal transceiver device are sensed by the specific signal transceiver device, while the light signals emitted by other signal transceivers are blocked, thereby realizing separate coordinated triggering between the two signal transceivers.
[0023] 4. As a preferred embodiment of the present invention, the first signal transceiver and the third signal transceiver are both arranged on the rear side of the pot body, and the third signal transceiver is arranged on the rear side of the pot cover corresponding to the position of the first signal transceiver. Each signal transceiver is located on the rear side of the pressure cooking device, so that each signal transceiver cooperates on the side away from the user, and when the user takes or places food on the front side of the pressure cooking device, it will not affect each signal transceiver, and ensure that each signal transceiver is clean, avoid food residues from falling and affecting the normal transmission and reception of signals, and ensure detection reliability.
[0024] 5. As a preferred embodiment of the present utility model, the pot body is provided with a control unit electrically connected to the first signal transceiver device, the second signal transceiver device and the third signal transceiver device, the pot cover is rotatably connected to the pot body, and a wire passing space for the wire to pass through is provided at the connection between the pot cover and the pot body. The first signal transceiver device, the second signal transceiver device and the third signal transceiver device are all electrically connected to the control unit, so that the three signal transceiver devices can be used as both signal transmitting devices and signal receiving devices, making the structural type of each signal transceiver device more flexible. At the same time, the pot cover is rotatably connected to the pot body, and the connecting wire passes through the connection between the two, which not only realizes the hidden routing of the wire, but also shortens the length of the wire, reduces the bending of the wire, and improves the service life. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:
[0026] Figure 1 A partial cross-sectional view of the pot body of the pressure cooking device in an embodiment of the utility model with the lid opened;
[0027] Figure 2 for Figure 1 Magnified view of the middle area;
[0028] Figure 3 is a partial cross-sectional view of the pressure cooking device in a closed lid state according to an embodiment of the utility model;
[0029] Figure 4 for Figure 3 Magnified view of the middle area;
[0030] Figure 5 It is a simplified diagram of the pressure cooking device according to one embodiment of the utility model, wherein the pot cover is in an open state;
[0031] Figure 6 for Figure 5 A simplified diagram of the pressure cooking device with the lid in a closed state;
[0032] Figure 7 This is a simplified diagram of the pressure cooking device in another embodiment of the present invention, wherein the pot lid is in an open state.
[0033] in:
[0034] 1 pot body; 11 guide channel; 12 control unit;
[0035] 2 pot cover; 21 push top;
[0036] 3 first signal transceiver device; 31 transmitting element; 32 receiving element;
[0037] 4 second signal transceiver device; 41 first receiving element; 42 first transmitting element;
[0038] 5 a third signal transceiver; 51 a second receiving element; 52 a second transmitting element;
[0039] 6 signal blocking member; 61 first blocking portion; 611 guiding section; 612 shielding section; 62 second blocking portion; 7 elastic reset member. DETAILED DESCRIPTION
[0040] In order to more clearly illustrate the overall concept of the present invention, a detailed description is given below in the form of examples in conjunction with the accompanying drawings.
[0041] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.
[0042] In addition, in the description of the present invention, it should be understood that the terms "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply 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 on the present invention.
[0043] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0044] In the present utility model, unless otherwise clearly specified and limited, the first feature "above" or "below" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "implementation method", "example", "one embodiment", "example" or "specific example" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples.
[0045] like Figures 1 to 7As shown, a pressure cooking device comprises a pot body 1 and a pot cover 2, wherein the pot cover 2 has a closed state and an open state, the pot body 1 is provided with a first signal transceiver 3 and a second signal transceiver 4, and the pot cover 2 is provided with a third signal transceiver 5. In the open state, the first signal transceiver 3 cooperates with the second signal transceiver 4 to be triggered, and in the closed state, the first signal transceiver 3 cooperates with the third signal transceiver 5 to be triggered or cooperates with the second signal transceiver 4 and the third signal transceiver 5 to be triggered.
[0046] It should be noted that in the present invention, "cooperative triggering" means that among at least two signal transceiver devices that cooperate with each other, at least one is a signal transmitter and at least one is a signal receiver, the signal (which may be an optical signal, a magnetic signal, etc.) emitted by the signal transmitter is received by the signal receiver, and the signal receiver sends an electrical signal to the control unit. Or at least one signal transceiver contacts with other signal transceivers to achieve triggering.
[0047] In the utility model, the pot body 1 is provided with a first signal transceiver 3 and a second signal transceiver 4, and the pot cover 2 is provided with a third signal transceiver 5, so that the three signal transceivers cooperate to form a variety of trigger states and states in a non-coordinated state, so that the control unit 12 can detect the opening and closing of the lid according to the trigger state of each signal transceiver, and detect the effectiveness of each signal transceiver, thereby greatly improving the diversity of detection functions and the accuracy of detection results, so that the control unit 12 of the pressure cooking device can make an effective response according to the actual state of the pot cover 2, ensuring that the cooking program runs accurately and reliably. Whether in the open lid state or the closed lid state, the signal transceiver is triggered to generate a signal, but the signal values in the two states are different, which is used for the control unit 12 to judge the state of the pot cover 2, and once there is no trigger state or the signal value is different from the signal value in the above two states, it means that at least one of the signal transceivers is faulty.
[0048] Specifically, when the pot cover 2 is in the open state, the first signal transceiver 3 on the pot body 1 cooperates with the second signal transceiver 4 to form a trigger, and the control unit 12 obtains a first signal, indicating that the pot cover 2 is not fully closed, and pressure cooking cannot be performed at this time, and only the related functions of open-lid cooking can be used. When the pot cover 2 is fully closed, the first signal transceiver 3 on the pot body 1 cooperates with the third signal transceiver 5 on the pot cover 2 to form a trigger, or the first signal transceiver 3, the second signal transceiver 4 and the third signal transceiver 5 cooperate to form a trigger, and a second signal is sent to the control unit 12 at this time, indicating that the pot cover 2 is fully closed and pressure cooking can be performed. When the control unit 12 does not receive any signal, it indicates that the signal transceiver is in an open circuit state or is damaged. Similarly, when the control unit 12 receives a signal value other than the first signal and the third signal, it also indicates that the signal transceiver is in an abnormal state, and the pressure cooking appliance can remind the user to check whether the cover is fully closed or repaired by sound, display, etc.
[0049] It should be noted that the present invention does not limit the specific types of the first signal transceiver device 3, the second signal transceiver device 4 and the third signal transceiver device 5, which may be one of the following embodiments:
[0050] Implementation method 1: In this implementation method, Figure 5 , Figure 6 As shown, the first signal transceiver device 3 is a transmitter 31, the second signal transceiver device 4 is a first receiver 41, and the third signal transceiver device 5 is a second receiver 51. In the open state, the transmitter 31 triggers the first receiver 41, and in the closed state, the transmitter 31 triggers the second receiver 51.
[0051] When the cover is opened, Figure 5 As shown, the signal emitted by the transmitter 31 on the pot body 1 is received by the first receiver 41 located on the pot body 1, and the first receiver 41 is triggered by sensing the signal. At this time, the first receiver 41 generates an electrical signal and feeds it back to the control unit 12, while the second receiver 51 located on the pot cover 2 has no signal.
[0052] In the closed state, Figure 6As shown, the signal emitted by the emitting element 31 on the pot body 1 is directly received by the second receiving element 51 on the pot cover 2. At this time, the second receiving element 51 feeds back an electrical signal to the control unit 12, while the first receiving element 41 has no signal. Alternatively, the signal emitted by the emitting element 31 is simultaneously received by the first receiving element 41 on the pot body 1 and the second receiving element 51 on the pot cover 2. The control unit 12 simultaneously receives the electrical signals from the first receiving element 41 and the second receiving element 51, and also makes a judgment that the lid is in place.
[0053] If the control unit 12 cannot receive the electrical signals from the first receiving element 41 and the second receiving element 51 , it indicates that a failure occurs in the signal transceiver device.
[0054] Implementation method 2: In this implementation method, Figure 7 As shown, the first signal transceiver device 3 is a receiving element 32, the second signal transceiver device 4 is a first transmitting element 42, and the third signal transceiver device 5 is a second transmitting element 52. In the open cover state, the first transmitting element 42 triggers the receiving element 32, and in the closed cover state, the second transmitting element 52 triggers the receiving element 32, or the first transmitting element 42 and the second transmitting element 52 trigger the receiving element 32 together.
[0055] When the cover is opened, Figure 7 As shown, the signal emitted by the first transmitting element 42 on the pot body 1 is received by the receiving element 32 located on the pot body 1, and the receiving element 32 senses the signal and is triggered. At this time, the receiving element 32 generates an electrical signal with a signal value of N1 and feeds it back to the control unit 12.
[0056] In the closed state, only the signal of the second transmitter 52 on the pot lid 2 is received by the receiving element 32, and the receiving element 32 generates an electric signal with a signal value of N2 and feeds it back to the control unit 12. Alternatively, the signal emitted by the first transmitter 42 on the pot body 1 is received by the receiving element 32 located on the pot body 1, and at the same time, the signal emitted by the second transmitter 52 located on the pot lid 2 is also received by the receiving element 32, and the receiving element 32 generates an electric signal with a signal value of N3 and feeds it back to the control unit 12.
[0057] If the electrical signal value obtained by the analysis receiver end of the control unit 12 is N1, the control unit 12 determines that the current state is the open cover state. If the electrical signal value is N2 or N3, the control unit 12 determines that the current state is the closed cover state.
[0058] Preferably, the signal transmission frequencies of the first transmitting element 42 and the second transmitting element 52 are different, wherein the transmission frequency of the first transmitting element 42 is f1, and the transmission frequency of the second transmitting element 52 is f2, and the control unit 12 can determine which transmitting element 31 the signal is sent from by analyzing the frequency of the received signal. The control unit 12 obtains the frequency F of the electrical signal, if F=f1, the current state is open, if F=f2, the current state is closed, if F≠f1, F≠f2 or F≠f1+f2, it is considered that the cover is not in place, or the identification device is abnormal.
[0059] Furthermore, if Figure 4 As shown, the pressure cooking appliance further comprises a signal blocking member 6. In the closed state, the signal blocking member 6 is located between the receiving member 32 and the first transmitting member 42 so that the second transmitting member 52 triggers the receiving member 32. The transmitting frequencies of the first transmitting member 42 and the second transmitting member 52 are different.
[0060] In the closed state, the signal blocking element 6 is located between the first emitting element 42 and the receiving element 32, thereby blocking the signal emitted by the first emitting element 42 and preventing it from being received by the receiving element 32. The receiving element 32 can only receive the signal emitted by the second emitting element 52 on the pot lid 2, so that in both the open state and the closed state, the receiving element 32 can only be triggered by either the first emitting element 42 or the second emitting element 52, thereby improving the triggering reliability, reducing the difficulty of the control unit 12 in signal processing, and making the judgment of the signal more accurate and reliable.
[0061] As a preferred embodiment of the present invention, Figure 4 As shown, the pressure cooking appliance also includes a signal blocking member 6, and the signal blocking member 6 can move relative to the pot body 1. In the open lid state, the signal blocking member 6 is located between the first signal transceiver device 3 and the third signal transceiver device 5 to enable the first signal transceiver device 3 to cooperate with the second signal transceiver device 4. In the closed lid state, the signal blocking member 6 is located between the first signal transceiver device 3 and the second signal transceiver device 4 to enable the first signal transceiver device 3 to cooperate with the third signal transceiver device 5.
[0062] The signal blocking member 6 can move with the movement of the pot cover 2, so that when the pot cover is opened, it blocks the position between the first signal transceiver device 3 and the third signal transceiver device 5. At this time, the signal blocking member 6 blocks the signal between the first signal transceiver device 3 and the third signal transceiver device 5, and cuts off the signal transmission between the two, so that the first signal transceiver device 3 can only be triggered in cooperation with the second signal transceiver device 4, so that the control unit 12 obtains the signal of opening the lid. The signal blocking member 6 can also move to the position between the first signal transceiver device 3 and the second signal transceiver device 4 after the pot cover 2 is closed, so as to cut off the signal transmission between the two, so that the first signal transceiver device 3 can only be triggered in cooperation with the third signal transceiver device 5, so that the control unit 12 obtains the signal of closing the lid.
[0063] The signal blocking member 6 enables the first signal transceiver device 3 to selectively cooperate with the second signal transceiver device 4 or the third signal transceiver device 5, thereby improving the stability of the cooperation and the signal value sent to the control unit 12, so that the control unit 12 can accurately judge the opening and closing state of the pot lid 2 according to the different signal values, thereby making an accurate choice of the cooking mode.
[0064] It should be noted that the utility model does not limit the structure of the first signal transceiver device 3, the second signal transceiver device 4 and the third signal transceiver device 5. In a preferred embodiment, the first signal transceiver device 3, the second signal transceiver device 4 and the third signal transceiver device 5 are all configured as structures capable of transmitting and / or receiving photoelectric signals. In the closed state, the signal blocking member 6 is located between the first signal transceiver device 3 and the second signal transceiver device 4 to block the optical signal between the second signal transceiver device 4 and the first signal transceiver device 3. In the open state, the signal blocking member 6 is located between the first signal transceiver device 3 and the third signal transceiver device 5 to block the optical signal between the third signal transceiver device 5 and the first signal transceiver device 3.
[0065] Specifically, in this embodiment, the signal transceiver device as a transmitter can be an optical signal transmitting element such as a light emitting diode or an infrared diode, and the signal transceiver device as a receiver can be an optical signal receiving element such as a phototransistor or an infrared receiving transistor.
[0066] In this embodiment, the first signal transceiver 3, the second signal transceiver 4 and the third signal transceiver 5 are all photoelectric elements, which are triggered by sensing light signals. The signal blocking member 6 can block the light signal, so that when in different positions, the light signal emitted by a specific signal transceiver is received by the specific signal transceiver, while the light signal emitted by other signal transceivers is blocked, so that the two signal transceivers can be triggered separately. The signal blocking member 6 can block the light signal only by blocking, and the blocking effect is good, the structure can be simpler, and the detection can be more reliable.
[0067] In another embodiment, the first signal transceiver 3, the second signal transceiver 4 and the third signal transceiver 5 are all configured as structures capable of transmitting and / or receiving electromagnetic signals. For example, the signal transceiver as a transmitter may be a magnet with magnetism, and the signal transceiver as a receiver may be a reed switch, a Hall element, etc., which generates an electrical signal by inducing the magnetic field of the magnetic part.
[0068] In this embodiment, the signal blocking member 6 may be a magnetic isolation member to isolate the magnetic field between the two signal transceiver devices.
[0069] Preferably, if Figure 2 , Figure 4 As shown, the signal blocking member 6 includes a first blocking portion 61 arranged on the pot body 1, and a second blocking portion 62 arranged on the pot cover 2, the first blocking portion 61 can move under the drive of the pot cover 2, in the closed state, the second blocking portion 62 is located between the first signal transceiver device 3 and the second signal transceiver device 4, in the open state, the first blocking portion 61 is located above the first signal transceiver device 3.
[0070] The second blocking portion 62 is located on the pot cover 2, so it can move with the pot cover 2. The first blocking portion 61 is movably connected to the pot body 1, and can also move when pushed by the pot cover 2. When the lid is opened, the first blocking portion 61 extends above the first signal transceiver 3 to block the signal between it and the third signal transceiver 5 on the pot cover 2. At the same time, the first signal transceiver 3 and the second signal transceiver 4 are both located on the lower side of the first blocking portion 61. The first blocking portion 61 can reflect the signal, which helps the two to cooperate and trigger. When the pot cover 2 is closed in place, the first blocking part 61 is pushed to move to open the space above the first signal transceiver device 3. At the same time, the second blocking part 62 abuts between the first signal transceiver device 3 and the second signal transceiver device 4 to block the signal between the two. At the same time, the first signal transceiver device 3 and the third signal transceiver device 5 are located on the same side of the second blocking part 62. The second blocking part 62 can reflect the signal, so that the first signal transceiver device 3 can cooperate with the third signal transceiver device 5 on the pot cover 2 alone.
[0071] Preferably, the second blocking portion 62 is a convex rib integrally formed with the pot cover 2 and protruding downward. When the cover is closed, the convex rib abuts against the top surface of the pot body 1, the first signal transceiver device 3 is located on one side of the convex rib, and the second signal transceiver device 4 is located on the other side of the convex rib.
[0072] Furthermore, if Figure 2 As shown, the pot body 1 is provided with a transversely extending guide channel 11, the first blocking portion 61 has a guide section 611 located in the guide channel 11, and a shielding section 612 for shielding the first signal transceiver device 3, and the pressure cooking appliance also includes an elastic reset member 7 arranged in the guide channel 11, and the elastic reset member 7 acts on the guide section 611.
[0073] The first blocking portion 61 can slide back and forth laterally under the action of the elastic reset member 7. In the open lid state, the first blocking portion 61 is extended under the elastic force of the elastic reset member 7 and is located above the first signal transceiver 3. When the pot lid 2 is closed, the downwardly protruding push portion 21 on the pot lid 2 pushes the first blocking portion 61 to move toward the inside of the guide channel 11, thereby opening the space above the first signal transceiver 3.
[0074] Specifically, after the pot cover 2 covers the pot body 1, it needs to be rotated horizontally to complete the locking with the pot body 1, so that pressure cooking can be performed. When the pot cover 2 covers the pot body 1 but is not locked, the first blocking part 61 does not move, and the control unit 12 cannot obtain a signal that the cover is in place. Only when the pot cover 2 is rotated horizontally and locked with the pot body 1, will the first blocking part 61 be pushed to move, so that the first signal transceiver 3 cooperates with the third signal transceiver 5, and the control unit 12 obtains a signal that the cover is in place.
[0075] As a preferred embodiment of the present invention, Figure 1 , Figure 3 As shown, the first signal transceiver device 3 and the third signal transceiver device 5 are both arranged on the rear side of the pot body 1 , and the third signal transceiver device 5 is arranged on the rear side of the pot cover 2 corresponding to the position of the first signal transceiver device 3 .
[0076] Each signal transceiver is located on the rear side of the pressure cooking appliance, so that each signal transceiver cooperates on the side away from the user. When the user takes or places food on the front side of the pressure cooking appliance, it will not affect the signal transceiver. In addition, the cleanliness of each signal transceiver is ensured to prevent food residues from falling and affecting the normal transmission and reception of signals, thereby ensuring the reliability of detection.
[0077] The utility model does not limit the assembly method of the pot cover 2 and the pot body 1. In one embodiment, the pot body 1 is provided with a control unit 12 electrically connected to the first signal transceiver device 3, the second signal transceiver device 4 and the third signal transceiver device 5, the pot cover 2 is rotatably connected to the pot body 1, and a wire passing space for the wire to pass through is provided at the connection between the pot cover 2 and the pot body 1.
[0078] The first signal transceiver 3, the second signal transceiver 4 and the third signal transceiver 5 are all electrically connected to the control unit 12, so that the three signal transceivers can be used as both signal transmitters and signal receivers, making the structural type of each signal transceiver more flexible. At the same time, the pot cover 2 is rotatably connected to the pot body 1, and the connecting wire passes through the connection between the two, which not only realizes the hidden routing of the wire, but also shortens the length of the wire, reduces the bending of the wire, and improves the service life.
[0079] In another embodiment, the pot cover 2 can be removed from the pot body 1, and the pot cover 2 and the pot body 1 are respectively provided with coupling structures so that the third signal transceiver device 5 is electrically connected to the control unit 12 in the closed state.
[0080] In this embodiment, since the pot cover 2 can be removed from the pot body 1, the two cannot be directly connected by a wire. Therefore, coupling structures are respectively provided on the pot cover 2 and the pot body 1. When the user covers the pot cover 2 on the pot body 1, the coupling structures are butt-coupled to achieve electrical connection.
[0081] In addition, in this embodiment, in the open lid state, the third signal transceiver 5 is not connected to the control unit 12 of the pot body 1, and the control unit 12 cannot receive the signal of the third signal transceiver 5, nor can it control the third signal transceiver 5 to transmit a signal, so the first signal transceiver 3 can only cooperate with the second signal transceiver 4 to obtain a signal. This also reduces the problem of the third signal transceiver 5 on the pot cover 2 being triggered by mistake in the open lid state, further improving the detection reliability and accuracy.
[0082] The parts not described in the present invention can be realized by adopting or drawing on the existing technology.
[0083] The various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referenced to each other, and each embodiment focuses on the differences from other embodiments.
[0084] The above description is only an embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention shall be included in the scope of the claims of the present invention.
Claims
1. A pressure cooking device, comprising a pot body and a pot cover, wherein the pot cover has a closed state and an open state, characterized in that: The pot body is provided with a first signal transceiver and a second signal transceiver, and the pot lid is provided with a third signal transceiver. In the open lid state, the first signal transceiver cooperates with the second signal transceiver to be triggered, and in the closed lid state, the first signal transceiver cooperates with the third signal transceiver or cooperates with the second signal transceiver and the third signal transceiver together to be triggered.
2. The pressure cooking device according to claim 1, characterized in that: The first signal transceiver device is a transmitter, the second signal transceiver device is a first receiver, and the third signal transceiver device is a second receiver. In the open cover state, the transmitter triggers the first receiver, and in the closed cover state, the transmitter triggers the second receiver.
3. The pressure cooking device according to claim 1, characterized in that: The first signal transceiver is a receiving element, the second signal transceiver is a first transmitting element, and the third signal transceiver is a second transmitting element. In the open cover state, the first transmitting element triggers the receiving element, and in the closed cover state, the second transmitting element triggers the receiving element, or the first transmitting element and the second transmitting element jointly trigger the receiving element.
4. The pressure cooking device according to claim 3, characterized in that: The pressure cooking device further comprises a signal blocking member, which is located between the receiving member and the first transmitting member in the closed state so that the second transmitting member triggers the receiving member, and the transmitting frequencies of the first transmitting member and the second transmitting member are different.
5. The pressure cooking device according to claim 1, characterized in that: The pressure cooking appliance further comprises a signal blocking member, which is movable relative to the pot body. In the open lid state, the signal blocking member is located between the first signal transceiver device and the third signal transceiver device so that the first signal transceiver device cooperates with the second signal transceiver device. In the closed lid state, the signal blocking member is located between the first signal transceiver device and the second signal transceiver device so that the first signal transceiver device cooperates with the third signal transceiver device.
6. The pressure cooking device according to claim 5, characterized in that The first signal transceiver device, the second signal transceiver device and the third signal transceiver device are all configured as structures capable of transmitting and / or receiving photoelectric signals. In the closed state, the signal blocking member is located between the first signal transceiver device and the second signal transceiver device to block the light signal. In the open state, the signal blocking member is located between the first signal transceiver device and the third signal transceiver device to block the light signal.
7. The pressure cooking device according to claim 5, characterized in that: The signal blocking member includes a first blocking portion provided on the pot body, and a second blocking portion provided on the pot lid, the first blocking portion can move under the drive of the pot lid, in the closed state, the second blocking portion is located between the first signal transceiver device and the second signal transceiver device, in the open state, the first blocking portion is located above the first signal transceiver device.
8. The pressure cooking device according to claim 7, characterized in that: The pot body is provided with a transversely extending guide channel, the first blocking portion has a guide section located in the guide channel, and a shielding section for shielding the first signal transceiver device, and the pressure cooking appliance also includes an elastic reset member arranged in the guide channel, and the elastic reset member acts on the guide section.
9. The pressure cooking device according to claim 1, characterized in that: The first signal transceiver device and the third signal transceiver device are both arranged on the rear side of the pot body, and the third signal transceiver device is arranged on the rear side of the pot cover corresponding to the position of the first signal transceiver device.
10. The pressure cooking device according to any one of claims 1 to 9, characterized in that: The pot body is provided with a control unit electrically connected to the first signal transceiver, the second signal transceiver and the third signal transceiver, the pot cover is rotatably connected to the pot body, and a wire passing space for a wire to pass through is provided at the connection between the pot cover and the pot body; or The pot cover can be removed from the pot body, and the pot cover and the pot body are respectively provided with coupling structures so that the third signal transceiver device is electrically connected to the control unit in the closed state.