Pressure sensing element

Abstract

According to the pressure sensing element provided by the utility model, the power supply assembly for independently supplying power is arranged on the circuit board, and the circuit board is wirelessly connected with a control panel or a heating structure of the cooking equipment through wireless signals, so that when the steam pressure in the cooking cavity is in a normal state, the pressure sensing element is in a power-off state; when the steam pressure in the cooking cavity is too large, the steam pressure can force the linkage mechanism, so that the linkage mechanism drives the switch assembly to trigger the circuit board to be powered on and send out a signal, the heating structure is powered off, and by means of the design, the novel pressure sensing element is in a power-off standby state most of time; according to the technical scheme, the power-on operation can be triggered only when the pressure is too large, the overall energy efficiency is effectively improved, the service life is effectively prolonged, the novel pressure sensing element can be installed more flexibly due to wireless connection, the novel pressure sensing element can be placed at the optimal position of the cooking equipment according to design requirements, and the internal structure of the cooking equipment is simplified.

Description

Technical Field

[0001] The utility model relates to the technical field of pressure sensing accessories, in particular to a pressure sensing element. Background Art

[0002] The application of pressure sensing technology is growing in modern kitchen equipment, especially in cooking devices (such as electric pressure cookers, smart stew pots, etc.). These devices often rely on pressure sensing elements to monitor and regulate internal pressure to ensure the safety and efficiency of the cooking process. However, existing pressure sensing element technology faces several key issues, especially in the way it is integrated with cooking equipment.

[0003] Traditionally, the pressure sensing element is usually connected to the control panel or heating structure of the cooking device through a wired connection. When the pressure in the cooking chamber of the cooking device is too high, the pressure sensing element sends a signal to the control panel or heating structure to cut off the power supply of the heating structure and stop it from working. With such a structure, the pressure sensing element needs to be powered on for a long time, which will accelerate the wear and aging of the element and reduce its service life.

[0004] Moreover, the wired connection method increases the complexity of the internal structure of the cooking equipment, which not only makes the equipment more difficult to maintain and repair, but also affects the overall appearance and compactness of the equipment. Furthermore, the wired connection limits the flexibility of the layout of the pressure sensing elements, which may constitute a restriction when designing and upgrading the equipment, affecting innovation and functional enhancement.

[0005] The utility model is proposed in view of the deficiencies in the prior art. Utility Model Content

[0006] In view of the technical problem that the existing pressure sensing elements in the prior art mentioned above are usually connected to the control panel or heating structure of the cooking device through a wired connection, so that the pressure sensing elements need to be maintained in an energized state for a long time, which accelerates the wear and aging of the elements and reduces their service life.

[0007] The technical solution adopted by the utility model to solve its technical problems is:

[0008] A pressure sensing element is used for cooking equipment, comprising a shell, in which a circuit board is arranged, and the circuit board is connected to a control panel or a heating structure of the cooking equipment by wireless signals. The circuit board is provided with a power supply component capable of supplying power to the circuit board and a switch component capable of controlling the conduction of the circuit board. The shell is also provided with a linkage mechanism, and the linkage mechanism can drive the switch component to trigger the circuit board to be powered on and send a signal under the action of steam pressure in a cooking cavity of the cooking equipment, thereby de-energizing the heating structure.

[0009] In the pressure sensing element as described above, the power supply assembly includes a battery assembly rack and a button battery, and the button battery is detachably assembled on the battery assembly rack.

[0010] In the pressure sensing element as described above, a positioning component capable of positioning the circuit board is provided on the inner side wall of the shell.

[0011] A pressure sensing element as described above, wherein the positioning assembly comprises a plurality of positioning protrusions and positioning grooves corresponding to the positioning protrusions one by one, each of the positioning protrusions can be inserted into the corresponding positioning groove, and the top and bottom of the positioning groove are provided with openings through which the positioning protrusions can pass;

[0012] The plurality of positioning protrusions are arranged along the circumference of the inner side wall of the shell, and the plurality of positioning grooves are arranged along the circumference of the outer side of the circuit board.

[0013] In the pressure sensing element as described above, a plurality of supporting protrusions capable of supporting a circuit board are arranged on the inner side wall of the shell at intervals along the circumference thereof.

[0014] In the pressure sensing element as described above, a connecting component is provided between the linkage mechanism and the shell, and the connecting component enables the linkage mechanism and the shell to be detachably connected. The connecting component has an avoidance hole in it, and the avoidance hole can be used for the linkage mechanism to drive the switch component.

[0015] A pressure sensing element as described above, wherein the connection assembly comprises a threaded column and a threaded hole threadedly connected to the threaded column, and the avoidance hole is located in the threaded column;

[0016] The threaded column is arranged at the top of the linkage mechanism, and the threaded hole is arranged at the bottom of the shell.

[0017] A pressure sensing element as described above, the linkage mechanism includes a linkage shell and an elastic sleeve sleeved on the outside of the linkage shell, the connecting component is arranged on the top of the linkage shell, the bottom outer side of the elastic sleeve has a driving part, the bottom inner side of the elastic sleeve has a triggering part, and the driving part can drive the elastic deformation of the elastic sleeve under the action of steam pressure to drive the triggering part to move toward the avoidance hole and drive the switch component to operate.

[0018] A pressure sensing element as described above, wherein the triggering portion includes the bottom inner side surface of the elastic sleeve;

[0019] Alternatively, the trigger portion includes an inner side surface of the bottom of the elastic sleeve and a trigger block disposed on the inner side surface of the bottom, and a top of the trigger block is close to or against a trigger end of the switch assembly.

[0020] A pressure sensing element as described above, wherein the switch assembly comprises a micro switch;

[0021] Alternatively, the switch assembly includes a micro switch and a protective cover, the protective cover is mounted on the trigger end of the micro switch, and the protective cover is movably connected to the avoidance hole.

[0022] The beneficial effects of the utility model are:

[0023] The utility model provides a pressure sensing element, by arranging an independent power supply component on a circuit board, and the circuit board is wirelessly connected to a control panel or a heating structure of a cooking device by using a wireless signal. When the steam pressure in the cooking cavity is in a normal state, the pressure sensing element is in a power-off state. When the steam pressure in the cooking cavity is too high, the steam pressure can force the linkage mechanism to drive the switch component to trigger the circuit board to power on and send a signal, thereby powering off the heating structure. With such a design, the new pressure sensing element is in a power-off standby state most of the time, and will only trigger the power-on operation when the pressure is too high, effectively improving the overall energy efficiency and service life. In addition, due to the use of wireless connection, the installation position of the new pressure sensing element can be more flexible, and it can be placed in the best position of the cooking device according to design requirements, thereby simplifying the internal structure of the cooking device.

[0024] The utility model will be further described below in conjunction with the accompanying drawings and specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the structure of the utility model;

[0026] Figure 2 It is a top view schematic diagram of the utility model;

[0027] Figure 3 for Figure 2 Schematic cross-sectional view along line AA;

[0028] Figure 4 This is one of the exploded schematic diagrams of the utility model;

[0029] Figure 5 This is the second exploded schematic diagram of the utility model;

[0030] Figure 6 This is one of the exploded schematic diagrams of the housing of the utility model;

[0031] Figure 7 This is the second exploded schematic diagram of the housing of the utility model;

[0032] Figure 8 This is one of the exploded schematic diagrams of the linkage mechanism of the utility model;

[0033] Fig. 9 This is the second exploded schematic diagram of the linkage mechanism of the utility model. DETAILED DESCRIPTION

[0034] The implementation modes of the present utility model are described in detail below in conjunction with the accompanying drawings.

[0035] like Figures 1 to 9 As shown, a pressure sensing element of this embodiment is used in a cooking device, including a shell 1, in which a circuit board 2 is arranged. The circuit board 2 is wirelessly connected to a control panel or a heating structure of the cooking device. A power supply component 3 capable of supplying power to the circuit board 2 and a switch component 4 capable of controlling the conduction of the circuit board 2 are arranged on the circuit board 2. A linkage mechanism 5 is also arranged on the shell 1.

[0036] Specifically, an independently powered power supply component 3 is provided on the circuit board 2, and the circuit board 2 is wirelessly connected to the control panel or heating structure of the cooking device using wireless signals. When the steam pressure in the cooking cavity is in a normal state, the pressure sensing element is in a power-off state. When the steam pressure in the cooking cavity is too high, the steam pressure can force the linkage mechanism 5 to drive the switch component 4 to trigger the circuit board 2 to power on and send a signal, thereby powering off the heating structure. With such a design, the new pressure sensing element is in a power-off standby state most of the time, and will only trigger the power-on operation when the pressure is too high, thereby effectively improving the overall energy efficiency and service life. In addition, due to the use of wireless connection, the installation position of the new pressure sensing element can be more flexible, and can be placed in the best position of the cooking device according to design requirements, thereby simplifying the internal structure of the cooking device.

[0037] Preferably, the wireless connection between the circuit board 2 and the control panel or heating structure of the cooking device can adopt other wireless technologies.

[0038] like Figures 1 to 9 As shown, the power supply assembly 3 of this embodiment includes a battery assembly rack 31 and a button battery 32 , and the button battery 32 is detachably assembled on the battery assembly rack 31 .

[0039] Specifically, the battery assembly rack 31 provides a stable interface for fixing and protecting the button battery 32, while also making it convenient for the user to contact and operate the button battery.

[0040] As a common small battery, the button battery 32 is low in cost and suitable for low-power devices. It is very suitable for applications such as wireless communications and sensors, and allows users to replace the battery by themselves. The button battery 32 can be easily removed and installed from the battery assembly rack 31, allowing users or maintenance personnel to easily replace the battery without professional tools or excessive labor, which greatly improves the convenience of use and maintenance.

[0041] Preferably, the button battery can keep the entire power supply assembly compact due to its small size, which is particularly advantageous for cooking equipment that needs to save space, and ensures that the pressure sensing element will not limit the choice of installation location due to size issues.

[0042] In addition, button batteries generally have good chemical stability and a wide operating temperature range, which enables the pressure sensing element to work stably in a variety of environments, and its performance will not be affected by either a high temperature kitchen environment or a humid environment.

[0043] Preferably, the top cover of the shell is a detachable structure, and the user only needs to remove the top cover to replace the battery, and the structure is simple and convenient.

[0044] like Figures 1 to 9 As shown, a positioning component 6 capable of positioning the circuit board 2 is provided on the inner wall of the housing 1 of this embodiment.

[0045] Specifically, the positioning assembly 6 can ensure that the circuit board 2 is stable in the housing 1, thereby preventing the circuit board from shifting due to vibration of the cooking device or other external forces, which would affect the accuracy of the sensor and the reliability of the device.

[0046] When the circuit board needs maintenance or replacement, the positioning assembly 6 can simplify the process, and the technician can quickly find and access the circuit board.

[0047] Preferably, the positioning assembly 6 of the present embodiment includes a plurality of positioning protrusions 61 and positioning grooves 62 corresponding one to one with the positioning protrusions 61, and each of the positioning protrusions 61 can be inserted into the corresponding positioning groove 62, and the top and bottom of the positioning grooves 62 are provided with openings for the positioning protrusions 61 to pass through; specifically, the top and bottom of the positioning grooves 62 are provided with openings to allow the positioning protrusions 61 to pass through and be inserted therein, so that the positioning protrusions can be assembled and positioned through simple linear movement, ensuring that the circuit board 2 can be accurately aligned with the housing 1, reducing assembly errors, and ensuring accurate placement of the assembly.

[0048] Preferably, the plurality of positioning protrusions 61 are circumferentially arranged along the inner wall of the shell 1, and the plurality of positioning grooves 62 are circumferentially arranged along the outer side of the circuit board 2. This circumferential layout increases the connection points, evenly distributes the fixing force, and helps to provide uniform support and stability on the entire circuit board.

[0049] Preferably, the side wall of the positioning protrusion 61 is close to or against the side wall of the positioning groove 62, which can provide a stable mechanical lock, avoid excessive positional deviation of the circuit board, and increase the overall stability of the device.

[0050] In other embodiments, the plurality of positioning protrusions 61 are arranged along the outer circumference of the circuit board 2, and the plurality of positioning grooves 62 are arranged along the inner circumference of the shell 1. A suitable positioning component 6 can be selected according to actual needs.

[0051] like Figures 1 to 9 As shown, a plurality of supporting protrusions 11 capable of supporting the circuit board 2 are arranged on the inner side wall of the housing 1 of this embodiment at intervals along its circumference.

[0052] Specifically, the plurality of supporting protrusions 11 can provide a solid support point for the circuit board 2, helping to keep the circuit board stable in the housing and preventing movement or vibration during operation of the device.

[0053] Specifically, by arranging a plurality of supporting protrusions at intervals along the circumferential direction, the pressure on the circuit board can be distributed more evenly, reducing the pressure concentration on a single point, thereby reducing the risk of damage. In addition, the supporting protrusions support the circuit board, which can form a certain gap between the circuit board and the bottom of the shell, thereby facilitating heat dissipation and keeping the electronic components working at an appropriate temperature.

[0054] Specifically, the positioning protrusion 61 is arranged on the top of the supporting protrusion 11, and the size of the supporting protrusion 11 is larger than the size of the positioning protrusion 61. With such a design, the structure of the new pressure sensing element is more compact. In addition, the supporting protrusion 11 provides a basic platform, and the positioning protrusion 61 is formed on the top thereof, which can enhance the structural strength of the positioning protrusion 61 and extend its service life. The larger size of the supporting protrusion 11 is to provide sufficient supporting area, while the positioning protrusion 61 focuses on cooperating with the positioning groove 62 to provide precise positioning.

[0055] like Figures 1 to 9 As shown, a connecting component 7 is provided between the linkage mechanism 5 and the shell 1 of this embodiment, and the connecting component 7 can realize a detachable connection between the linkage mechanism 5 and the shell 1. With such a design, when a part of the linkage mechanism 5 and the shell 1 is damaged, it is not necessary to replace the entire component, which can facilitate the maintenance and repair of the pressure sensing element and reduce the maintenance cost and time.

[0056] The linkage mechanism 5 and the shell 1 adopt a detachable connection structure. When assembled on the cooking equipment, the top part of the linkage mechanism 5 and the bottom of the shell can be rotatably clamped on the side wall and / or top of the cooking cavity. It has the advantages of simple structure and easy operation, and does not require additional connectors, effectively reducing assembly costs.

[0057] Preferably, the connecting component 7 has an avoidance hole 71, and the avoidance hole 71 can be used for the linkage mechanism 5 to drive the switch component 4. The avoidance hole 71 provides a path for the linkage mechanism 5, ensuring that the linkage mechanism 5 has enough space to operate when driving the switch component 4 while avoiding interference with other components.

[0058] like Figures 1 to 9 As shown, the connection assembly 7 of this embodiment includes a threaded column 72 and a threaded hole 73 threadedly connected to the threaded column 72, and the avoidance hole 71 is located in the threaded column 72;

[0059] Specifically, the design of the threaded column 72 and the threaded hole 73 provides a secure and reusable connection method, which can be installed or removed by a simple rotation action, simplifying the loading and unloading process of the pressure sensing element, supporting quick replacement or maintenance, and effectively shortening downtime.

[0060] Specifically, the avoidance hole 71 is designed inside the threaded column 72, which not only saves space and ensures the compact layout of the components, which has a positive effect on the miniaturization and integration of the overall equipment, but also provides a clear channel for the operating part of the linkage mechanism 5 to pass smoothly when driving the switch component 4.

[0061] Preferably, the threaded column 72 is arranged at the top of the linkage mechanism 5, and the threaded hole 73 is arranged at the bottom of the shell 1. The threaded column 72 is arranged at the top of the linkage mechanism 5, and the threaded hole 73 is arranged at the bottom of the shell 1. Such a layout takes into account the convenience of operation and the stability of the structure. This top-down connection method is convenient for the operator to install and disassemble, and is also more stable and reliable in structure.

[0062] In other embodiments, the threaded column 72 is disposed at the bottom of the housing 1, and the threaded hole 73 is disposed at the top of the linkage mechanism 5. A suitable connection component 7 can be selected according to actual needs.

[0063] like Figures 1 to 9 As shown, the linkage mechanism 5 of this embodiment includes a linkage shell 51 and an elastic sleeve 52 sleeved on the outside of the linkage shell 51, the connecting component 7 is arranged on the top of the linkage shell 51, the bottom outer side of the elastic sleeve 52 has a driving part 521, the bottom inner side of the elastic sleeve 52 has a triggering part, and the driving part 521 can drive the elastic sleeve 52 to elastically deform under the action of steam pressure, so as to drive the triggering part to move toward the avoidance hole 71 and drive the switch component 4 to operate.

[0064] Specifically, when the steam pressure acts on the elastic sleeve 52 , the driving portion 521 will first respond to the pressure, thereby causing the elastic sleeve 52 to produce elastic deformation, and then push the trigger portion to move toward the avoidance hole 71 , thereby finally driving the switch assembly 4 .

[0065] Preferably, the driving portion 521 of this embodiment is the bottom outer side of the elastic sleeve 52 . This design enables the driving portion 521 to receive the direct effect of the steam pressure to the greatest extent, and also facilitates the conversion of the steam pressure into the deformation energy of the elastic sleeve 52 .

[0066] The bottom outer side surface of the elastic sleeve 52 is used as the driving part 521, which can directly withstand the pressure from the steam. This force-bearing method is direct and efficient, which is conducive to the rapid transmission of power. Due to the elastic characteristics of the elastic sleeve 52, the position of the driving part 521 makes the deformation energy conversion process more concentrated and efficient. The direct effect of the steam pressure reduces the energy loss in the transmission process.

[0067] Furthermore, adopting such a design can simplify the structure of the driving unit 521, reduce potential failure points, and improve the reliability of the entire system.

[0068] Since the outer side of the bottom of the elastic sleeve 52 directly serves as the driving part 521, when the steam acts, the elastic sleeve 52 will deform along the set deformation direction, thereby pushing the trigger part to move. This movement can activate or close the switch assembly 4, thereby realizing the control process.

[0069] Preferably, the top of the elastic sleeve 52 of this embodiment has a sleeve hole 523 for the linkage shell 51 to be inserted into the elastic sleeve 52, and the top part of the elastic sleeve 52 and the bottom of the shell can be rotatably clamped on the side wall and / or the top of the cooking cavity, which is convenient for installation. The top of the elastic sleeve 52 also has the function of a sealing ring, so that the new pressure sensing element can not only achieve mechanical fixation, but also provide a good sealing effect to prevent leakage of steam or other substances and maintain the pressure in the cooking cavity and the stability of the environment.

[0070] like Figures 1 to 9 As shown, the trigger portion of this embodiment includes a bottom inner side surface 522 of the elastic sleeve 52 and a trigger block 524 disposed on the bottom inner side surface 522 , and the top of the trigger block 524 is close to or against the trigger end of the switch assembly 4 .

[0071] Specifically, the bottom inner side surface 522 of the elastic sleeve 52 serves as a part of the trigger portion, providing a structural basis for the trigger block 524 to be installed thereon and ensuring the stability and correct movement trajectory of the trigger block 524. When the elastic sleeve 52 is elastically deformed under the pressure of steam pressure, the bottom inner side surface 522 of the elastic sleeve 52 pushes the trigger block 524 to move in the avoidance hole 71 toward the switch assembly 4 and triggers the switch assembly 4 to energize the circuit board.

[0072] When the steam pressure decreases, the elastic sleeve 52 slowly returns to its original state due to its own elasticity and removes the force on the trigger block 524. The trigger block 524 moves away from the switch assembly 4 in the avoidance hole 71 and does not trigger the switch assembly 4, so that the circuit board is powered off.

[0073] Since the trigger portion is directly connected to the elastic sleeve 52 , the trigger action can quickly respond to the deformation of the elastic sleeve, thereby realizing rapid switching of the switch assembly 4 .

[0074] Since the trigger part simplifies the mechanical connection and reduces the moving parts, the possibility of failure is correspondingly reduced and the overall reliability of the system is improved.

[0075] The structural stability of the elastic sleeve 52 ensures that the trigger block 524 can stably activate the switch assembly 4, and the avoidance hole 71 can limit the trigger block 524 to prevent the trigger block 524 from excessive positional displacement in the lateral direction, thereby ensuring that it accurately triggers the switch assembly 4.

[0076] Preferably, a first annular positioning protrusion 61 is further provided on the inner side surface 522 of the bottom, the trigger block 524 is located in the first annular positioning protrusion 61 , and the outer side wall of the trigger block 524 is close to or against the inner side wall of the first annular positioning protrusion 61 .

[0077] In other embodiments, the trigger portion includes the bottom inner side surface 522 of the elastic sleeve 52, and the trigger end of the switch assembly 4 passes through the avoidance hole 71 and extends to the elastic sleeve 52, close to or against the bottom inner side surface 522 of the elastic sleeve 52; adopting such a design, the structure of the trigger block 524 can be saved, so that the bottom inner side surface 522 of the elastic sleeve 52 directly triggers the switch assembly 4, making the structure of the new pressure sensing element more compact and simpler.

[0078] like Figures 1 to 9 As shown, the switch assembly 4 of this embodiment includes a micro switch 41 and a protective cover 42 . The protective cover 42 is assembled on the trigger end of the micro switch 41 , and the protective cover 42 is movably connected to the avoidance hole 71 .

[0079] Specifically, the micro switch 41 is the core part of the switch assembly, responsible for receiving the physical operation signal and converting it into an electrical signal, and usually has a smaller operating force and a shorter stroke.

[0080] The protective cover 42 is mounted on the trigger end of the micro switch 41 to provide physical protection to prevent damage that may be caused by external forces directly acting on the micro switch. In addition, the protective cover can buffer the operating force, reduce the wear on the micro switch itself, and extend the service life of the switch.

[0081] Specifically, the protective cover 42 is movably connected to the avoidance hole 71, which means that during operation, the protective cover can move within a certain range, and the movable connection can also absorb part of the force generated during the operation. When the micro switch is subjected to excessive pressure, damage can be avoided by the displacement of the protective cover, and the possibility of misoperation can be reduced, thereby improving the accuracy of the operation.

[0082] Preferably, the top of the protective cover 42 of this embodiment has an annular limiting protrusion 421 extending radially outward along the protective cover 42, and the outer diameter of the annular limiting protrusion 421 is larger than the inner diameter of the avoidance hole 71. The annular limiting protrusion 421 prevents the protective cover 42 from completely passing through the hole, thereby avoiding the risk of the protective cover detaching from the micro switch 41.

[0083] Furthermore, the annular limiting protrusion 421 can serve as a physical stop point to ensure that the protective cover 42 remains in the correct position when in the standby state, thereby helping to maintain consistency and accuracy of the operation.

[0084] Furthermore, the protective cover 42 can increase the pressing area of ​​the trigger portion 522 , thereby ensuring the success rate of the micro switch 41 in responding.

[0085] Preferably, a second annular positioning protrusion 422 for positioning the trigger end of the micro switch 41 is further provided in the protective cover 42 of the present embodiment. The second annular positioning protrusion 422 helps to maintain the trigger end of the micro switch 41 in the correct position in the protective cover 42, which ensures precise alignment during the trigger operation and avoids malfunction or inconsistent response due to position deviation.

[0086] The micro switch 41 can be firmly fixed in the protective cover 42 by the second annular positioning protrusion 422 inside, so that the stability and durability of the switch can be maintained even in an environment of frequent operation or vibration.

[0087] Furthermore, the internal positioning protrusion 422 can simplify the assembly process, making the installation of the micro switch 41 faster and easier, while also reducing possible errors that may occur during the assembly process.

[0088] In some other embodiments, the switch assembly 4 only includes a micro switch 41;

[0089] Preferably, the switch assembly 4 may also adopt a membrane switch, a piezoelectric switch or other structures;

[0090] Taking the diaphragm switch as an example, the diaphragm switch is composed of a sensitive diaphragm. When the steam pressure drives the elastic sleeve to deform elastically, it can act on the diaphragm through the trigger part, the diaphragm will deform, and trigger the switch through the mechanical linkage mechanism to power on the circuit board.

[0091] Taking the piezoelectric switch as an example, the piezoelectric switch utilizes the property of piezoelectric materials to generate voltage when subjected to mechanical pressure. This type of switch can directly convert the pressure of the trigger part into an electrical signal, thereby triggering the circuit board to power on.

[0092] As described above, multiple implementation methods are provided in combination with specific contents, and the specific implementation of this application is not limited to these descriptions. Any similarity or similarity with the method, structure, etc. of this application, or any technical deduction or replacement made on the premise of the concept of this application, shall be deemed to be within the scope of protection of this application.

Claims

1. A pressure sensing element for cooking equipment, characterized in that: The invention comprises a shell (1), wherein a circuit board (2) is arranged inside the shell (1), wherein the circuit board (2) is connected to a control panel or a heating structure of a cooking device by wireless signals, wherein the circuit board (2) is provided with a power supply component (3) capable of supplying power to the circuit board (2) and a switch component (4) capable of controlling the conduction of the circuit board (2), and wherein the shell (1) is also provided with a linkage mechanism (5), wherein the linkage mechanism (5) can, under the action of the steam pressure in the cooking cavity of the cooking device, drive the switch component (4) to trigger the circuit board (2) to be powered on and send a signal, thereby disconnecting the power to the heating structure.

2. A pressure sensing element according to claim 1, characterized in that: The power supply assembly (3) comprises a battery assembly rack (31) and a button battery (32), wherein the button battery (32) is detachably assembled on the battery assembly rack (31).

3. A pressure sensing element according to claim 1, characterized in that: A positioning component (6) capable of positioning the circuit board (2) is provided on the inner side wall of the housing (1).

4. A pressure sensing element according to claim 3, characterized in that: The positioning assembly (6) comprises a plurality of positioning protrusions (61) and positioning grooves (62) corresponding to the positioning protrusions (61) one by one, each of the positioning protrusions (61) can be inserted into the corresponding positioning groove (62), and the top and bottom of the positioning groove (62) are both provided with openings through which the positioning protrusions (61) can pass; The plurality of positioning protrusions (61) are arranged along the circumference of the inner wall of the housing (1), and the plurality of positioning grooves (62) are arranged along the circumference of the outer wall of the circuit board (2).

5. A pressure sensing element according to any one of claims 1 to 4, characterized in that: A plurality of supporting protrusions (11) capable of supporting the circuit board (2) are arranged at intervals along the circumference of the inner side wall of the housing (1).

6. A pressure sensing element according to any one of claims 1 to 4, characterized in that: A connecting assembly (7) is provided between the linkage mechanism (5) and the housing (1), and the connecting assembly (7) enables the linkage mechanism (5) and the housing (1) to be detachably connected. A relief hole (71) is provided in the connecting assembly (7), and the relief hole (71) enables the linkage mechanism (5) to drive the switch assembly (4).

7. A pressure sensing element according to claim 6, characterized in that: The connection assembly (7) comprises a threaded column (72) and a threaded hole (73) threadedly connected to the threaded column (72), and the avoidance hole (71) is located inside the threaded column (72); The threaded column (72) is arranged at the top of the linkage mechanism (5), and the threaded hole (73) is arranged at the bottom of the housing (1).

8. A pressure sensing element according to claim 6, characterized in that: The linkage mechanism (5) comprises a linkage shell (51) and an elastic sleeve (52) sleeved on the outside of the linkage shell (51); the connection assembly (7) is arranged on the top of the linkage shell (51); the bottom outside of the elastic sleeve (52) has a driving part (521); the bottom inside of the elastic sleeve (52) has a micro switch; the driving part (521) can drive the elastic sleeve (52) to elastically deform under the action of steam pressure, so as to drive the micro switch to move in the direction of the avoidance hole (71), and drive the switch assembly (4) to operate.

9. A pressure sensing element according to claim 8, characterized in that: The micro switch comprises a bottom inner side surface (522) of an elastic sleeve (52); Alternatively, the micro switch comprises a bottom inner side surface (522) of the elastic sleeve (52) and a trigger block (524) disposed on the bottom inner side surface (522), and the top of the trigger block (524) is close to or against the trigger end of the switch assembly (4).

10. A pressure sensing element according to claim 6, characterized in that: The switch assembly (4) comprises a micro switch (41); Alternatively, the switch assembly (4) comprises a micro switch (41) and a protective cover (42), wherein the protective cover (42) is mounted on the trigger end of the micro switch (41), and the protective cover (42) is movably connected to the avoidance hole (71).

Images