A heat-dissipating intelligent control pressure solenoid valve

Abstract

The present invention relates to the technical field of pressure solenoid valves, and specifically refers to a heat-dissipating intelligent control pressure solenoid valve; it includes a valve body, a valve stem and a pressure cover. The valve stem vertically passes through the valve body and is fixedly connected thereto. A pressure relief hole penetrating through the upper and lower ends of the valve stem is provided on the valve stem. The pressure cover is movably arranged at the upper end of the valve stem and is arranged in cooperation with the upper port of the pressure relief hole. An electromagnetic component is arranged inside the valve body, and a permanent magnet is arranged inside the pressure cover; a radiator is provided at the lower end of the valve body. One end of the radiator is communicated with the pressure relief hole, and a pressure sensor is provided on the radiator; the structure of the present invention is reasonable. The radiator is communicated with the pressure relief hole through a pipe joint, so that the pressure sensor monitors the internal pressure. The pressure sensor outputs a signal to the pressure cooker control module to change the current direction of the solenoid valve. The electromagnetic component and the pressure cover are magnetically repelled and suspended to relieve pressure, realizing intelligent control of pressure holding and pressure relief. The radiator prevents the pressure sensor and the electromagnetic component from overheating, and improves the working stability of the pressure solenoid valve.

Description

Technical Field

[0001] The present invention relates to the technical field of pressure solenoid valves, and particularly to a heat-dissipating intelligent control pressure solenoid valve. Background Art

[0002] For existing cooking appliances such as electric pressure cookers, their solenoid valves utilize the principle that a magnetic valve and an electromagnetic chuck can both generate suction and repulsion forces to achieve stepless adjustment of the pressure limit value of the electric pressure cooker. The implementation method is as follows: when the electromagnetic chuck is not powered on, the pressure limit of the electric pressure cooker is determined by the suction force generated by the electromagnetic chuck and the magnetic valve; when the electromagnetic chuck is energized with a direct current that increases from small to large, the electromagnetic chuck will generate the same magnetic pole as the adjacent surface of the magnetic valve, and the repulsive force of the same magnetic pole will reduce the suction force between the magnetic valve and the electromagnetic chuck until the generated repulsive force completely lifts the magnetic valve.

[0003] The insulation method between the iron core and the winding of the existing solenoid valve generally uses enameled wire and insulating tape. In the solenoid valve on the electric pressure cooker, it is easy for water vapor to invade, resulting in a decrease in insulation performance. The water vapor will also cause rust on the iron core, thus affecting the service life of the solenoid valve. The valve rod, solenoid valve, and valve structure of the existing pressure solenoid valve are all independent components, and multiple assemblies are required during the assembly process. Especially for the solenoid valve using the tape insulation layer filling and winding process, if the tape insulation layer is cracked or damaged, the solenoid valve will be damaged. After the electromagnetic coil is energized, its resistance will increase and the current will decrease as the temperature of the coil itself rises and the working environment temperature rises. The corresponding suction or repulsive force of the electromagnetic coil will also decrease, and the relationship with voltage and air pressure will also change, resulting in the air pressure in the pot not matching the set air pressure.

[0004] Therefore, the existing technology still needs to be improved and developed. Summary of the Invention

[0005] The purpose of the present invention is to provide a heat-dissipating intelligent control pressure solenoid valve with reasonable structure, strong insulation and stability in view of the defects and deficiencies of the existing technology.

[0006] To achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A heat-dissipating intelligent control pressure solenoid valve of the present invention includes a valve body, a valve rod, and a pressure cover. The valve rod vertically passes through the valve body and is fixedly connected thereto. A pressure relief hole penetrating through the upper and lower ends of the valve rod is provided on the valve rod. The pressure cover is movably arranged at the upper end of the valve rod and is arranged in cooperation with the upper port of the pressure relief hole. An electromagnetic assembly is arranged in the valve body, and a permanent magnet is arranged in the pressure cover. A radiator is provided at the lower end of the valve body. One end of the radiator is communicated with the pressure relief hole, and a pressure sensor is provided on the radiator.

[0008] According to the above solution, a pipe joint is provided at the lower end of the valve body. One end of the pipe joint is connected to the air valve rod and communicated with the pressure relief hole. A radiator is provided at the other end of the pipe joint; one end of the radiator is connected to the pipe joint so as to communicate with the pressure relief hole, a pressure sensor is provided at the other end of the radiator, and a plurality of heat dissipation fins are provided on the outer edge of the radiator.

[0009] According to the above solution, the other end of the radiator is open, and a packaging seat is provided at the other end of the radiator. The packaging seat is connected to the radiator so as to fixedly arrange the pressure sensor on the opening of the radiator. A plurality of first leads connected to the pressure sensor are provided on the packaging seat; a second lead is provided on the valve body, and the second lead is electrically connected to the electromagnetic component.

[0010] According to the above solution, a channel hole is formed in the valve body, the channel hole penetrates through the electromagnetic component, the air valve rod is arranged in the channel hole, the valve body encapsulates the air valve rod and the electromagnetic component through a forming process, and the valve body forms an insulating barrier between the air valve rod and the electromagnetic component; the pipe joint is integrally formed with the valve body, a bypass hole is provided on the side wall of the air valve rod, and one end of the pipe joint is butted with the bypass hole on the air valve rod so as to communicate with the pressure relief hole.

[0011] According to the above solution, the electromagnetic component includes a keel and an iron core. A coil is wound around the outer periphery of the keel, a first through hole is formed at the center of the keel, the iron core is arranged in the first through hole and fixedly connected thereto; a second through hole is formed at the center of the iron core, an inner cylinder is arranged in the second through hole, the inner cylinder is attached to the inner wall of the second through hole of the iron core, and the lower end of the inner cylinder is connected to the lower end of the keel through an extending structure so as to wrap the lower end of the iron core; a channel hole is formed at the center of the inner cylinder, the air valve rod is arranged in the channel hole, and the valve body integrally fixes and connects the air valve rod, the keel and the iron core through a forming process.

[0012] According to the above solution, a shielding cover is provided in the valve body. The shielding cover has an end face partition part and a circumferential partition part and forms a shielding cavity with an opening upward; the keel, the iron core, the inner cylinder and the coil are all arranged in the shielding cavity of the shielding cover. A magnetic conducting suction cup is provided at the upper end of the iron core. The magnetic conducting suction cup is arranged in the upper port of the shielding cover and the magnetic conducting suction cup is attached to the upper end face of the keel.

[0013] According to the above solution, an air nozzle is provided at the upper end of the air valve rod, an exhaust hole is provided on the pressure cover, the upper end of the air nozzle is inserted into and arranged in the exhaust hole from the lower port of the exhaust hole, and a pressure relief plate is provided at the upper port of the exhaust hole; a permanent magnet is provided in the pressure cover, a plug is provided on the bottom surface of the pressure relief plate, and the plug is movably abutted against the upper port of the air nozzle.

[0014] According to the above solution, a limiting baffle is provided on the inner wall of the exhaust hole, and a guiding port is opened on the limiting baffle; the air nozzle is movably inserted into the guiding port, and an anti-detachment flange is provided at the upper end of the air nozzle above the limiting baffle; the pressure cover further includes an exhaust cover, the lower port of the exhaust cover is detachably connected to the upper end of the valve body, a sealing gasket is provided between the lower port of the exhaust cover and the valve body, and an air outlet hole is provided at the upper end of the exhaust cover.

[0015] According to the above solution, the heat-dissipating intelligent control pressure solenoid valve is applied to an electric pressure cooker.

[0016] The beneficial effects of the present invention are as follows: The structure of the present invention is reasonable. The radiator is connected to the pressure relief hole through a pipe joint, and the pressure sensor monitors the internal pressure. The pressure sensor outputs a signal to the pressure cooker control module to change the current direction of the solenoid valve. The electromagnetic component and the pressure cover are magnetically repelled and suspended to relieve pressure, realizing intelligent control of pressure holding and pressure relief. The radiator prevents the pressure sensor and the electromagnetic component from overheating, improving the working stability of the pressure solenoid valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is the overall structural schematic diagram of the present invention;

[0018] Figure 2 is the overall sectional structural schematic diagram of the present invention;

[0019] Figure 3 is the exploded structural schematic diagram of the valve body of the present invention;

[0020] Figure 4 is the exploded structural schematic diagram of the pressure cover of the present invention;

[0021] Figure 5 is the structural schematic diagram of the electric pressure cooker of the present invention.

[0022] In the figure:

[0023] 1, valve body; 2, pressure cover; 3, electromagnetic component; 4, radiator; 5, iron core; 6, electric pressure cooker; 11, air valve rod; 12, pressure relief hole; 13, channel hole; 14, bypass hole; 15, shielding cover; 16, air nozzle; 21, exhaust hole; 22, pressure relief plate; 23, permanent magnet; 24, plug; 25, limiting baffle; 26, guiding port; 27, anti-detachment flange; 28, exhaust cover; 29, air outlet hole; 31, second lead; 32, keel; 33, coil; 34, first through hole; 35, second through hole; 36, inner cylinder; 41, pressure sensor; 42, pipe joint; 43, heat sink; 44, encapsulation seat; 45, first lead; 51, magnetic suction cup. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] The technical solutions of the present invention will be described below in conjunction with the drawings and embodiments.

[0025] As Figures 1-5 shown, a heat-dissipating intelligent control pressure solenoid valve according to the present invention includes a valve body 1, a valve stem 11 and a pressure cover 2. The valve stem 11 vertically passes through the valve body 1 and is fixedly connected thereto. A pressure relief hole 12 penetrating through the upper and lower ends of the valve stem 11 is provided on the valve stem 11. The pressure cover 2 is movably arranged at the upper end of the valve stem 11 and is arranged in cooperation with the upper port of the pressure relief hole 12. An electromagnetic assembly 3 is arranged in the valve body 1, and a permanent magnet 23 is arranged in the pressure cover 2. A radiator 4 is arranged at the lower end of the valve body 1. One end of the radiator 4 is communicated with the pressure relief hole 12, and a pressure sensor 41 is arranged on the radiator 4. The valve body 1 is connected to an electric pressure cooker 6 so that the lower end of the valve stem 11 penetrates into the electric pressure cooker 6. The pressure relief hole 12 in the valve stem 11 communicates the inner cavity of the electric pressure cooker 6 with the outside. The pressure cover 2 is installed on the upper end of the valve stem 11 to control the on-off of the pressure relief hole 12. When an electric current is passed through the electromagnetic assembly 3 to generate magnetic poles, a force is formed on the pressure cover 2. The direction of this force corresponds to the direction of the electric current passing through the electromagnetic assembly 3. When the electromagnetic assembly 3 generates a suction force with the permanent magnet 23, the pressure cover 2 is used to cut off the pressure relief hole 12 to increase the pressure in the electric pressure cooker 6. The magnitude of the force generated by the pressure cover 2 is related to the current intensity passing through the electromagnetic assembly 3. The pressure sensor 41 can detect the pressure in the electric pressure cooker 6. Both the pressure sensor 41 and the electromagnetic assembly 3 are connected to a control module, so as to realize the automatic control and adjustable and controllable purpose of the working pressure of the electric pressure cooker 6. In particular, the pressure sensor 41 is arranged on the radiator 4 to avoid high temperature to improve the stability of the pressure sensor 41.

[0026] The present invention monitors the real-time air pressure in the pressure cooker through the pressure sensor 41, sets the working air pressure of the pressure cooker according to different ingredients, applies a rated voltage to the electromagnetic assembly 3 during operation, and relies on the magnetic core magnetized by the electromagnetic coil to suck the pressure cover 2. When the pressure in the pot exceeds the set pressure, the pressure sensor 41 will output a frequency signal or a voltage signal to the single-chip microcomputer on the central control board. After receiving the signal, the central control board changes the current direction of the solenoid valve, so that the electromagnetic assembly 3 and the pressure cover 2 are magnetically repelled and suspended to relieve pressure, realizing intelligent control of pressure maintaining and pressure relieving. The sensor circuit board is integrated with a voltage instability alarm signal and has a built-in air pressure calibration single-chip microcomputer. The radiator 4 can control the steam temperature within the operating temperature range of the pressure sensor 41 to ensure the working accuracy of the pressure sensor 41.

[0027] A pipe joint 42 is provided at the lower end of the valve body 1. One end of the pipe joint 42 is connected to the air valve rod 11 and is communicated with the pressure relief hole 12. A radiator 4 is provided at the other end of the pipe joint 42. One end of the radiator 4 is connected to the pipe joint 42 so as to communicate with the pressure relief hole 12. A pressure sensor 41 is provided at the other end of the radiator 4. A plurality of heat dissipation fins 43 are provided on the outer edge of the radiator 4. The pipe joint 42 fixedly connects the radiator 4 to the valve body 1, and the inner cavity of the radiator 4 is communicated with the pressure relief hole 12 through the inner hole of the pipe joint 42. Furthermore, the pressure in the pressure relief hole 12 is monitored through the pressure sensor 41. Further, the heat dissipation fins 43 can reduce the temperature at the installation position of the pressure sensor 41, reduce the influence of high temperature on the pressure sensor 41, and improve its working stability. It can be understood that one end of the pipe joint 42 is formed and communicated with the pressure relief hole 12, and a sealing ring is provided at the connecting portion between the radiator 4 and the pipe joint 32 to ensure the sealing performance.

[0028] The other end of the radiator 4 is provided with an opening, and a packaging seat 44 is provided at the other end of the radiator 4. The packaging seat 44 is connected to the radiator 4 to fixedly arrange the pressure sensor 41 on the opening of the radiator 4. A plurality of first leads 45 connected to the pressure sensor 41 are provided on the packaging seat 44. A second lead 31 is provided on the valve body 1, and the second lead 31 is electrically connected to the electromagnetic component 3. The first lead 45 and the second lead 31 respectively connect the electromagnetic component 3 and the pressure sensor 41 to the control module of the electric pressure cooker 6 to realize automatic pressure control and regulation.

[0029] A channel hole 13 is formed in the valve body 1. The channel hole 13 penetrates through the electromagnetic component 3. The air valve rod 11 is disposed in the channel hole 13. The valve body 1 encapsulates the air valve rod 11 and the electromagnetic component 3 through a forming process, and the valve body 1 forms an insulating barrier between the air valve rod 11 and the electromagnetic component 3. The pipe joint 42 is integrally formed with the valve body 1. A bypass hole 14 is provided on the side wall of the air valve rod 11. One end of the pipe joint 42 is butted against the bypass hole 14 on the air valve rod 11 to communicate with the pressure relief hole 12. The air valve rod 11 is disposed in the channel hole 13, and the air valve rod 11 and the channel hole 13 are spaced from the electromagnetic component 3. The water vapor flowing through the channel hole 13 and the air valve rod 11 will not enter the electromagnetic component 3, thereby effectively improving the insulation performance and stability of the pressure solenoid valve.

[0030] The electromagnetic component 3 includes a keel 32 and an iron core 5. A coil 33 is wound around the outer periphery of the keel 32. A first through hole 34 is formed at the center of the keel 32. The iron core 5 is inserted into the first through hole 34 and fixedly connected thereto. A second through hole 35 is formed at the center of the iron core 5. An inner cylinder 36 is inserted into the second through hole 35 of the iron core 5. The inner cylinder 36 is arranged in contact with the inner wall of the second through hole 35 of the iron core 5. The lower end of the inner cylinder 36 is connected to the lower end of the keel 32 through an extending structure to wrap the lower end of the iron core 5. A channel hole 13 is formed at the center of the inner cylinder 36. The air valve rod 11 is inserted into the channel hole 13, and the valve body 1 integrally fixes the air valve rod 11, the keel 32 and the iron core 5 through a forming process. The inner cylinder 36 and the keel 32 are integrally wrapped on the iron core 5. Further, the valve body 1 is integrally formed and encapsulates the keel 32 and the iron core 5, which can effectively improve the insulation performance and stability of the pressure solenoid valve.

[0031] When the electromagnetic component 3 is not energized, the pressure cover 2 blocks the upper end of the pressure relief hole 12 of the air valve rod 11 under the action of gravity. When a positive current is applied to the electromagnetic component 3, the electromagnetic component 3 generates a suction force on the permanent magnet 23. At this time, the pressure acting on the upper end of the pressure relief hole 12 by the pressure cover 2 becomes stronger. The lower end of the air valve rod 11 communicates with the inner cavity of the electric pressure cooker 6. When the pressure in the electric pressure cooker 6 is sufficient to push the pressure cover 2, the pressure and gas in the electric pressure cooker 6 are released to the outside through the pressure relief hole 12. Then, when the pressure in the electric pressure cooker 6 drops, the pressure cover 2 blocks the pressure relief hole 12 again to repeat the above process.

[0032] When a reverse current is applied to the electromagnetic component 3, the electromagnetic component 3 drives the pressure cover 2 to rise to release the pressure in the electric pressure cooker 6. In particular, the magnitude of the electromagnetic force generated by the electromagnetic component 3 can be adjusted, so as to realize the stepless adjustment function of the working pressure of the electric pressure cooker 6.

[0033] A shielding cover 15 is arranged in the valve body 1. The shielding cover 15 has an end face partition part and a circumferential partition part and forms a shielding cavity with an opening upward. The keel 32, the iron core 5, the inner cylinder 36 and the coil 33 are all arranged in the shielding cavity of the shielding cover 15. A magnetic conductive suction cup 51 is arranged at the upper end of the iron core 5. The magnetic conductive suction cup 51 is arranged in the upper port of the shielding cover 15 and the magnetic conductive suction cup 51 is attached to the upper end face of the keel 32. The shielding cover 4 is used to block the magnetism at the lower end of the iron core 5. When the coil 33 is energized, the iron core 5 generates magnetism, and then the magnetic conductive suction cup 51 at the upper end of the iron core 5 generates corresponding magnetic poles and magnetic forces, which cooperate with the permanent magnet 23 to make the pressure cover 2 generate corresponding blocking pressure.

[0034] The upper end of the valve rod 11 is provided with a nozzle 16, and the pressure cover 2 is provided with an exhaust hole 21. The upper end of the nozzle 16 is inserted into and passes through the exhaust hole 21 from the lower port of the exhaust hole 21, and a pressure relief plate 22 is provided at the upper port of the exhaust hole 21. A plug 24 is provided on the bottom surface of the pressure relief plate 22, and the plug 24 is movably abutted against the upper port of the nozzle 16. The plug 24 can adopt a conical structure, and the upper port of the nozzle 16 adopts a flared shape. The nozzle 12 passes through the exhaust hole 21 so that the pressure cover 2 can move up and down along the nozzle 16. Under the action of gravity, the plug 24 on the pressure relief plate 22 contacts the nozzle 16 to cut off the pressure relief hole 12. When the pressure in the electric pressure cooker 6 exceeds the acting force generated by the electromagnetic component 3, the pressure cover 2 is lifted by the air pressure, and the pressure in the electric pressure cooker 6 is discharged outward through the valve rod 11, the nozzle 16 and the exhaust hole 21 to release the pressure.

[0035] A limiting baffle 25 is provided on the inner wall of the exhaust hole 21, and a guiding port 26 is opened on the limiting baffle 25. The nozzle 16 is movably inserted into the guiding port 26, and an anti-detachment flange 27 is provided at the upper end of the nozzle 16 above the limiting baffle 25. The pressure cover 2 further includes an exhaust hood 28. The lower port of the exhaust hood 28 is detachably connected to the upper end of the valve body 1, and a sealing gasket is provided between the lower port of the exhaust hood 28 and the valve body 1. An air outlet hole 29 is provided at the upper end of the exhaust hood 28.

[0036] The limiting baffle 25 can be made of an elastic material to facilitate the anti-detachment flange 27 passing through the guiding port 26 during installation. The limiting baffle 25 is used to limit the pressure cover 2 to prevent it from falling off the nozzle 16 under pressure impact. Further, the anti-detachment flange 27 can adopt a threaded structure, and an internal thread is machined on the guiding port 26. The pressure cover 2 can be screwed onto and assembled on the nozzle 16, and the anti-detachment flange 27 and the limiting baffle 25 can only be disengaged by a helical fit method to prevent the pressure cover 2 from falling off the nozzle 16 under the action of impact force.

[0037] The heat-dissipating intelligent control pressure solenoid valve is applied to the electric pressure cooker 6. The electric pressure cooker 6 is provided with a main control board and a display panel. The main control board is connected to the electromagnetic component 3 and the display panel through a circuit, and the display panel can display the set pressure value, the real-time pressure value and the temperature in the electric pressure cooker 6.

[0038] The above are only the preferred embodiments of the present invention. Therefore, all equivalent changes or modifications made according to the structures, features and principles described in the scope of the present invention patent application are included in the scope of the present invention patent application.

Claims

1. A heat-dissipating intelligent control pressure solenoid valve, comprising a valve body (1), a valve stem (11) and a pressure cover (2), characterized in that: The valve stem (11) vertically passes through the valve body (1) and is fixedly connected thereto. A pressure relief hole (12) penetrating through the upper and lower ends thereof is provided on the valve stem (11). The pressure cover (2) is movably provided at the upper end of the valve stem (11) and is arranged in cooperation with the upper port of the pressure relief hole (12). An electromagnetic component (3) is provided in the valve body (1), and a permanent magnet (23) is provided in the pressure cover (2); A radiator (4) is provided at the lower end of the valve body (1). One end of the radiator (4) is communicated with the pressure relief hole (12), and a pressure sensor (41) is provided on the radiator (4); The electromagnetic component (3) includes a keel (32) and an iron core (5). A coil (33) is wound around the outer periphery of the keel (32). A first through hole (34) is formed at the center of the keel (32). The iron core (5) is inserted into the first through hole (34) and fixedly connected thereto; A second through hole (35) is formed at the center of the iron core (5). An inner cylinder (36) is inserted into the second through hole (35) of the iron core (5). The inner cylinder (36) is attached to the inner wall of the second through hole (35) of the iron core (5), and the lower end of the inner cylinder (36) is connected to the lower end of the keel (32) through an extension structure so as to wrap the lower end of the iron core (5); A channel hole (13) is formed at the center of the inner cylinder (36). The valve stem (11) is inserted into the channel hole (13), and the valve body (1) integrally fixes the valve stem (11), the keel (32) and the iron core (5) through a forming process.

2. The heat dissipation type intelligent control pressure solenoid valve according to claim 1, wherein: A pipe joint (42) is provided at the lower end of the valve body (1). One end of the pipe joint (42) is connected to the valve stem (11) and is communicated with the pressure relief hole (12). The other end of the pipe joint (42) is provided with a radiator (4); One end of the radiator (4) is connected to the pipe joint (42) so as to be communicated with the pressure relief hole (12). A pressure sensor (41) is provided at the other end of the radiator (4), and a plurality of heat dissipation fins (43) are provided on the outer edge of the radiator (4).

3. The heat-dissipating intelligent control pressure solenoid valve according to claim 2, wherein: The other end of the radiator (4) is open, and a packaging seat (44) is provided at the other end of the radiator (4). The packaging seat (44) is connected to the radiator (4) so as to fixedly arrange the pressure sensor (41) on the opening of the radiator (4). A plurality of first leads (45) connected to the pressure sensor (41) are provided on the packaging seat (44); A second lead (31) is provided on the valve body (1), and the second lead (31) is electrically connected to the electromagnetic component (3).

4. The heat-dissipating intelligent control pressure solenoid valve according to claim 2, characterized in that: A channel hole (13) is formed in the valve body (1). The channel hole (13) penetrates through the electromagnetic component (3). The valve stem (11) is inserted into the channel hole (13). The valve body (1) encapsulates the valve stem (11) and the electromagnetic component (3) through a forming process, and the valve body (1) constitutes an insulating barrier between the valve stem (11) and the electromagnetic component (3); The pipe joint (42) is integrally formed with the valve body (1). A bypass hole (14) is provided on the side wall of the valve stem (11). One end of the pipe joint (42) is docked with the bypass hole (14) on the valve stem (11) so as to communicate with the pressure relief hole (12).

5. The heat dissipation type intelligent control pressure solenoid valve according to claim 1, wherein: A shielding cover (15) is provided inside the valve body (1). The shielding cover (15) has an end face partition portion and a circumferential partition portion and forms a shielding cavity with an upward opening. The keel (32), the iron core (5), the inner cylinder (36) and the coil (33) are all arranged in the shielding cavity of the shielding cover (15). A magnetic conductive suction cup (51) is provided at the upper end of the iron core (5). The magnetic conductive suction cup (51) is arranged in the upper port of the shielding cover (15) and the magnetic conductive suction cup (51) is attached to the upper end face of the keel (32).

6. The heat-dissipating intelligent control pressure solenoid valve according to claim 1, wherein: An air nozzle (16) is provided at the upper end of the air valve rod (11). An exhaust hole (21) is provided on the pressure cover (2). The upper end of the air nozzle (16) is inserted into and passes through the lower port of the exhaust hole (21) from the lower port of the exhaust hole (21). A pressure relief plate (22) is provided at the upper port of the exhaust hole (21). A permanent magnet (23) is provided inside the pressure cover (2). A plug (24) is provided on the bottom surface of the pressure relief plate (22). The plug (24) is movably abutted against the upper port of the air nozzle (16).

7. The heat-dissipating intelligent control pressure solenoid valve according to claim 6, wherein: A limit baffle (25) is provided on the inner wall of the exhaust hole (21). A guiding port (26) is provided on the limit baffle (25). The air nozzle (16) is movably inserted into the guiding port (26). An anti - detachment flange (27) is provided at the upper end of the air nozzle (16) above the limit baffle (25). The pressure cover (2) further includes an exhaust hood (28). The lower port of the exhaust hood (28) is detachably connected to the upper end of the valve body (1). A sealing gasket is provided between the lower port of the exhaust hood (28) and the valve body (1). An air outlet hole (29) is provided at the upper end of the exhaust hood (28).

8. The heat-dissipating intelligent control pressure solenoid valve according to any one of claims 1-7, characterized in that: The heat - dissipating intelligent control pressure solenoid valve is applied to an electric pressure cooker (6).

Images