Electromagnetic pressure valve and heat purification all-in-one machine thereof

Abstract

The electromagnetic pressure valve comprises a shell, a sleeve, a coil, a movable iron core, a fixed iron core, a water inlet pipe and a water outlet pipe, the sleeve is installed in the shell, the coil is wound around the outer side of the sleeve, the movable iron core is arranged in the sleeve and can move in the axial direction of the sleeve, and the fixed iron core is arranged in the shell. The water inlet pipe and the water outlet pipe are respectively connected to two ends of the sleeve and are communicated through an inner cavity of the sleeve; the movable iron core and the fixed iron core attract each other by an electromagnetic field generated when current with preset magnitude is introduced into the coil, so that the movable iron core moves towards the water inlet pipe, and a water passing gap formed between the movable iron core and the water inlet pipe is reduced; when the coil is powered off, the movable iron core moves away from the water inlet pipe and resets. The electromagnetic pressure valve is applied to a heat purification all-in-one machine, when hot water of an instant heating body passes through the electromagnetic pressure valve, the electromagnetic pressure valve is electrified to increase the resistance of the movable iron core to the hot water and increase the water flow pressure of the instant heating body, so that the pressure intensity in the instant heating body is higher than normal pressure, and the heating temperature of the hot water is effectively increased.

Description

Technical Field

[0001] The present application relates to the technical field of water purification equipment, and in particular to an electromagnetic pressure valve and a water purification and heating integrated machine thereof. Background Art

[0002] With economic development and the improvement of living standards, consumers are paying more and more attention to healthy water use and drinking water, and their requirements for water use are getting higher and higher. As a water treatment equipment that can deeply filter and purify water quality according to water use requirements, water purifiers are recognized and favored by more and more consumers. At present, there is a kind of all-in-one water purifier and heat machine on the market, which enables consumers to receive both room temperature purified water and hot water at the same time, and gradually replaces the old-fashioned water purifiers with a single water purification function. This type of all-in-one water purifier and heat machine usually includes a filter element and an instant heating body. Its working principle is that the filter element heats the purified water after filtering the raw water through the instant heating body, so that it can achieve the function of hot water after connecting to the faucet. However, in areas with high altitudes and low air pressure, the boiling point of water will be lower. When using a purifier and heat machine in these areas, the maximum temperature of the instant heating element to heat water is generally 95°C, and the water is not really boiled. In addition, because there is a water outlet pipe between the instant heating element and the faucet, the hot water will lose some heat when flowing in the water outlet pipe, causing the hot water temperature to drop. As a result, the temperature of the boiled water received by the user is often lower than 90°C, which cannot meet the user's demand for high-temperature boiled water. Utility Model Content

[0003] The present application provides an electromagnetic pressure valve and a heat and water purification machine thereof to solve the technical problem that the instant heating body of the heat and water purification machine in the above-mentioned areas with high altitude and low air pressure cannot really boil the water and the temperature of the hot water discharged from the faucet is low.

[0004] The technical solution adopted in this application is:

[0005] An electromagnetic pressure valve comprises a shell, a sleeve, a coil, a moving iron core, a fixed iron core, a water inlet pipe and a water outlet pipe, wherein: the sleeve is installed in the shell, the coil is wound on the outside of the sleeve, the moving iron core is arranged in the sleeve and can move along the axial direction of the sleeve, the water inlet pipe and the water outlet pipe are respectively connected to the two ends of the sleeve and are connected through the inner cavity of the sleeve; the electromagnetic field generated when a current of a preset size is passed through the coil causes the moving iron core and the fixed iron core to attract each other, and causes the moving iron core to move toward the water inlet pipe, thereby reducing the water gap formed between the moving iron core and the water inlet pipe; when the coil is powered off, the moving iron core moves away from the water inlet pipe and resets.

[0006] The solenoid pressure valve in this application also has the following additional technical features:

[0007] The water outlet pipe is provided with a stop convex portion extending toward the inside of the sleeve. When the coil is powered off, the moving iron core is reset to a position against the stop convex portion. A plurality of the stop convex portions are arranged at intervals along the circumference of the water outlet pipe.

[0008] The inner surface of the sleeve is provided with protruding limiting ribs, which extend along the axial direction of the sleeve. A plurality of limiting ribs are arranged at intervals along the circumference of the sleeve. The limiting ribs abut against the moving iron core to form a water gap between the inner surface of the sleeve and the moving iron core for connecting the water inlet pipe and the water outlet pipe.

[0009] An elastic member is arranged between the moving iron core and the water inlet pipe, and the elastic member drives the moving iron core to move away from the water inlet pipe and reset when the coil is powered off.

[0010] A first screw-on protrusion is provided on the outer side of the water outlet pipe, and a first screw-on groove is provided on the second end of the sleeve. The water outlet pipe is inserted into the second end of the sleeve and rotated in one direction so that the first screw-on protrusion is snapped into the first screw-on groove to achieve axial limiting. A snap-on protrusion is provided on the first end of the sleeve, and a snap-on hole is provided on one end of the shell. The snap-on protrusion is snap-fitted with the snap-on hole, and the first screw-on protrusion is pressed against the other end of the shell when snapped into the first screw-on groove.

[0011] The water inlet pipe is detachably mounted on the sleeve, and at least part of the structure of the water inlet pipe is made of magnetic material to form the fixed iron core, so that when a current of a preset magnitude passes through the coil, the electromagnetic field generated causes the moving iron core to attract the water inlet pipe.

[0012] A second rotary buckle protrusion is arranged on the outer side of the water inlet pipe, and a second rotary buckle groove is arranged on the first end of the sleeve. The water inlet pipe is inserted into the first end of the sleeve and rotated in one direction so that the second rotary buckle protrusion is inserted into the second rotary buckle groove to realize axial limitation.

[0013] The water inlet pipe is integrally connected to the inner side of the sleeve and forms a mounting ring groove with the sleeve. The fixed iron core is installed in the mounting ring groove. The water inlet pipe and / or the sleeve are provided with a first limiting protrusion, which abuts against the fixed iron core to confine the fixed iron core in the mounting ring groove.

[0014] The water inlet pipe is integrally connected to the inner side of the sleeve, the fixed iron core is sleeved on the outer side of the sleeve and is located between the coil and the sleeve, and the sleeve is provided with a second limiting protrusion, which abuts against the fixed iron core to limit the axial movement of the fixed iron core along the sleeve.

[0015] The present application provides an all-in-one heat and air conditioner, comprising an instant heating element and a hot water discharge port, and also comprising the electromagnetic pressure valve as described above, wherein the water inlet pipe is connected to the water outlet of the instant heating element, and the water outlet pipe is connected to the hot water discharge port.

[0016] Due to the adoption of the above technical solution, the technical effects achieved by this application are:

[0017] 1. The electromagnetic pressure valve provided in the present application has a coil wound around the outside of a sleeve, a moving iron core arranged in the sleeve and movable along the axial direction of the sleeve, a water inlet pipe and a water outlet pipe being connected through the inner cavity of the sleeve, and an electromagnetic field generated when a current of a preset size is passed through the coil causes the moving iron core and the fixed iron core to attract each other, thereby causing the moving iron core to move toward the water inlet pipe, thereby reducing the water flow gap formed between the moving iron core and the water inlet pipe, thereby increasing the resistance of the moving iron core to the water flow entering the water inlet pipe; when the coil is powered off, the moving iron core moves away from the water inlet pipe and resets, thereby reducing the resistance of the moving iron core to the water flow entering the water inlet pipe. Therefore, the electromagnetic pressure valve is suitable for use in the integrated water and heat machine, and is connected between the instant heating element and the faucet of the integrated water and heat machine. When the instant heating element outputs hot water to the faucet, the hot water passes through the electromagnetic pressure valve in advance. At this time, the coil can be energized to drive the moving iron core to move toward the water inlet pipe, thereby reducing the water gap formed between the moving iron core and the water inlet pipe, and increasing the resistance of the moving iron core to the water flow entering the water inlet pipe, effectively increasing the water flow pressure of the instant heating element connected to the upstream of the electromagnetic pressure valve, so that the pressure inside the instant heating element is higher than the normal pressure, and the boiling point of the water flow in the instant heating element is also higher than the boiling point under normal pressure. The boiling point of water also increases with the increase of pressure. Therefore, the instant heating element can heat the water temperature to not less than 100℃ when heating, so that the hot water can be truly boiled. Moreover, even if some heat is lost in the process of boiling water flowing to the faucet, the water temperature can be ensured to be above 95℃ when reaching the faucet, meeting the user's needs for high-temperature boiling water. In addition, the electromagnetic pressure valve adjusts the current delivered to the coil so that the moving iron core has different magnetic forces, and the moving iron core moves different distances toward the water inlet pipe. Therefore, the moving iron core has different resistance to the water flow, so that the hot water delivered to the water inlet pipe by the instant heating body needs to overcome different magnetic forces to obtain different pressures, so that the inside of the instant heating body has different pressures, so that the water has different boiling points, which can meet the needs of boiling water in different altitudes and has a wider range of applications.

[0018] 2. As a preferred embodiment of the present application, the water outlet pipe is provided with a stop protrusion extending toward the inside of the sleeve. When the coil is powered off, the moving iron core is reset to a position against the stop protrusion, thereby preventing the moving iron core from blocking the water outlet pipe and affecting the connection between the sleeve and the water outlet pipe; a plurality of stop protrusions are arranged at intervals along the circumference of the water outlet pipe, which can not only form a good stop and limit effect on the moving iron core, but also form a water flow channel between two adjacent stop protrusions to connect the water outlet pipe and the inner cavity of the sleeve.

[0019] 3. As a preferred embodiment of the present application, the limiting ribs abut against the moving iron core to form a water gap between the inner surface of the sleeve and the moving iron core for connecting the water inlet pipe and the water outlet pipe, thereby ensuring a larger distance between the sleeve and the moving iron core, making the connection between the water inlet pipe and the water outlet pipe smoother, and at the same time, ensuring that the moving iron core is not eccentric when moving in the inner cavity of the sleeve and is always in the center position.

[0020] 4. As a preferred embodiment of the present application, an elastic member is provided between the moving iron core and the water inlet pipe. When the coil is powered off, the generated magnetic field disappears, and the suction force between the moving iron core and the fixed iron core is weakened. Then, the elastic member drives the moving iron core to move away from the water inlet pipe to achieve automatic resetting.

[0021] 5. As a preferred embodiment of the present application, the first turn buckle protrusion is pressed against the other end of the shell when it is inserted into the first turn buckle groove. Therefore, the cooperation between the first turn buckle protrusion and the first turn buckle groove can not only realize the fixed connection between the water outlet pipe and the sleeve, but also press the shell to limit the position, realizing multi-purpose and functional integration. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0023] Figure 1 An exploded view of the electromagnetic pressure valve provided in the first embodiment of the present application;

[0024] Figure 2 A cross-sectional view of the electromagnetic pressure valve provided in the first embodiment of the present application;

[0025] Figure 3 This is a schematic structural diagram of a sleeve provided in the first embodiment of the present application;

[0026] Figure 4 A schematic diagram of the structure of the water inlet pipe provided in the first embodiment of the present application;

[0027] Figure 5 A schematic diagram of the structure of the water outlet pipe provided in the first embodiment of the present application;

[0028] Figure 6 A cross-sectional view of a solenoid pressure valve provided in a second embodiment of the present application;

[0029] Figure 7 A cross-sectional view of the electromagnetic pressure valve provided in the third embodiment of the present application.

[0030] List of parts and reference numerals:

[0031] 1 shell, 11 card holes;

[0032] 2 sleeve, 21 wiring hole, 22 limiting rib, 23 first rotary buckle slot, 24 buckle protrusion, 25 second rotary buckle slot, 26 first limiting convex point, 27 second limiting convex point;

[0033] 3 coils, 31 terminals;

[0034] 4 moving iron core;

[0035] 5. Fixed iron core;

[0036] 6 water inlet pipe, 61 second screw-on protrusion;

[0037] 7 water outlet pipe, 71 stopper protrusion, 72 first screw-on protrusion;

[0038] 8 elastic member;

[0039] 9 Install the ring groove;

[0040] 100 first sealing ring;

[0041] 200 second sealing ring. DETAILED DESCRIPTION

[0042] In order to more clearly illustrate the overall concept of the present application, a detailed description is given below in an illustrative manner in conjunction with the accompanying drawings.

[0043] In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present application is not limited to the specific embodiments disclosed below.

[0044] In addition, in the description of the present application, it should be understood that the terms "upper", "lower", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", "lateral", "longitudinal", 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 application 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 should not be understood as a limitation on the present application.

[0045] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" 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 this application can be understood according to specific circumstances.

[0046] In the present application, unless otherwise clearly specified and limited, a first feature "above" or "below" a 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 "one embodiment", "some embodiments", "example", "specific example", or "some examples" 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 present application. 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.

[0047] In the embodiment of the present application, a solenoid pressure valve and a heat and water purification integrated machine thereof are provided. For the convenience of explanation and understanding, the following contents provided in the present application are all described on the basis of the illustrated product structure. Of course, those skilled in the art can understand that the above structure is only used as a specific example and schematic description, and cannot constitute a specific limitation on the technical solution provided in the present application.

[0048] Reference Figures 1 to 7 As shown, an electromagnetic pressure valve provided in the present application includes a shell 1, a sleeve 2, a coil 3, a moving iron core 4, a fixed iron core 5, a water inlet pipe 6 and a water outlet pipe 7, wherein: the sleeve 2 is installed in the shell 1, the coil 3 is wound on the outside of the sleeve 2, the moving iron core 4 is arranged in the sleeve 2 and can move along the axial direction of the sleeve 2, the water inlet pipe 6 and the water outlet pipe 7 are respectively connected to the two ends of the sleeve 2 and are connected through the inner cavity of the sleeve 2; the electromagnetic field generated when a current of a preset size is passed through the coil 3 causes the moving iron core 4 and the fixed iron core 5 to attract each other, and causes the moving iron core 4 to move toward the water inlet pipe 6, thereby reducing the water gap formed between the moving iron core 4 and the water inlet pipe 6; when the coil 3 is powered off, the moving iron core 4 moves away from the water inlet pipe 6 and resets.

[0049] The electromagnetic pressure valve provided in the present application has a coil 3 wound around the outside of the sleeve 2, a moving iron core 4 arranged in the sleeve 2 and movable along the axial direction of the sleeve 2, a water inlet pipe 6 and a water outlet pipe 7 being connected through the inner cavity of the sleeve 2, and an electromagnetic field generated when a current of a preset size is passed through the coil 3 causes the moving iron core 4 to be attracted to the fixed iron core 5, and causes the moving iron core 4 to move toward the water inlet pipe 6, thereby reducing the water flow gap formed between the moving iron core 4 and the water inlet pipe 6, thereby increasing the resistance of the moving iron core 4 to the water flow entering the water inlet pipe 6, and when the coil 3 is powered off, the moving iron core 4 moves away from the water inlet pipe 6 and resets, thereby reducing the resistance of the moving iron core 4 to the water flow entering the water inlet pipe 6. It should be noted that, regardless of whether the coil 3 is powered on or not, the position of the moving iron core 4 cannot block the water inlet pipe 6 or the water outlet pipe 7, and the water inlet pipe 6 and the water outlet pipe 7 can always be connected through the sleeve 2. Therefore, the electromagnetic pressure valve belongs to a normally open valve structure. The electromagnetic pressure valve is suitable for use in a water-purifying and heat-integrated machine, and is connected between the instant heating element and the faucet of the water-purifying and heat-integrated machine. When the instant heating element outputs hot water to the faucet, the hot water passes through the electromagnetic pressure valve in advance. At this time, the coil 3 can be energized to drive the moving iron core 4 to move toward the water inlet pipe 6, thereby reducing the water gap formed between the moving iron core 4 and the water inlet pipe 6. The moving iron core 4 increases the resistance of the water flow entering the water inlet pipe 6, effectively increasing the water flow pressure of the instant heating element connected to the upstream of the electromagnetic pressure valve, so that the pressure in the instant heating element is higher than the normal pressure, and the boiling point of the water flow in the instant heating element is also higher than the boiling point under normal pressure. The boiling point of water also increases with the increase of pressure. Therefore, the instant heating element can heat the water temperature to not less than 100°C when heating, so that the hot water can be truly boiled. Moreover, even if some heat is lost in the process of boiling water flowing to the faucet, the water temperature can be ensured to be above 95°C when reaching the faucet, meeting the user's demand for high-temperature boiled water. In addition, the electromagnetic pressure valve adjusts the current delivered to the coil 3 so that the moving iron core 4 has different magnetic forces, and the moving iron core 4 moves different distances toward the water inlet pipe 6. Therefore, the moving iron core 4 has different resistance to the water flow, so that the hot water delivered to the water inlet pipe 6 by the instant heating body needs to overcome different magnetic forces to obtain different pressures, so that the inside of the instant heating body has different pressures, so that the water has different boiling points, which can meet the needs of boiling water in different altitudes and has a wider range of applications.

[0050] When implementing it, Figure 2 and Figure 3 As shown, a wiring hole 21 may be provided on the sleeve 2 so that the wiring terminal 31 of the coil 3 passes through the wiring hole 21 to facilitate wiring and energizing the coil 3 .

[0051] As a preferred implementation of the present application, Figure 2 and Figure 5As shown, the water outlet pipe 7 is provided with a stop convex portion 71 extending toward the inside of the sleeve 2, and when the coil 3 is powered off, the moving iron core 4 is reset to a position against the stop convex portion 71; multiple stop convex portions 71 are arranged at intervals along the circumference of the water outlet pipe 7. It can be understood by those skilled in the art that when the coil 3 is powered off, the moving iron core 4 is reset to a position against the stop convex portion 71, thereby preventing the moving iron core 4 from blocking the water outlet pipe 7 and affecting the connection between the sleeve 2 and the water outlet pipe 7, ensuring that the sleeve 2 is always in a connected state with the water outlet pipe 7; multiple stop convex portions 71 are arranged at intervals along the circumference of the water outlet pipe 7, so that multiple stop limits can be formed along the circumference of the moving iron core 4, which can not only form a good stop limit effect on the moving iron core 4, but also form a water flow channel between two adjacent stop convex portions 71 to connect the water outlet pipe 7 and the inner cavity of the sleeve 2.

[0052] As a preferred implementation of the present application, Figure 2 and Figure 3 As shown, the inner surface of the sleeve 2 is provided with a protruding limiting rib 22, the limiting rib 22 extends along the axial direction of the sleeve 2, and a plurality of the limiting ribs 22 are arranged at intervals along the circumferential direction of the sleeve 2, and the limiting rib 22 abuts against the moving iron core 4 so that a water gap for connecting the water inlet pipe 6 and the water outlet pipe 7 is formed between the inner surface of the sleeve 2 and the moving iron core 4. It can be understood by those skilled in the art that, since the sleeve 2 needs to always connect the water inlet pipe 6 and the water outlet pipe 7, the limiting rib 22 abuts against the moving iron core 4 so that a water gap for connecting the water inlet pipe 6 and the water outlet pipe 7 is formed between the inner surface of the sleeve 2 and the moving iron core 4, ensuring that a larger distance is maintained between the sleeve 2 and the moving iron core 4, so that the connection between the water inlet pipe 6 and the water outlet pipe 7 is smoother, and at the same time, it can also ensure that the moving iron core 4 is not eccentric when moving in the inner cavity of the sleeve 2 and is always in the center. In a preferred embodiment, the distance between the inner surface of the sleeve 2 and the moving iron core 4 can be no less than 1.5 mm, that is, the width of the water gap is no less than 1.5 mm. Since the sleeve 2 is abutted against the moving iron core 4 through the limiting rib 22, the height of the limiting rib 22 protruding from the inner surface of the sleeve 2 should be no less than 1.5 mm. The water gap is wide enough to ensure the smooth connection between the water inlet pipe 6 and the water outlet pipe 7 by the sleeve 2.

[0053] As a preferred implementation of the present application, Figure 1 and Figure 2As shown, an elastic member 8 is provided between the moving iron core 4 and the water inlet pipe 6, and the elastic member 8 drives the moving iron core 4 to move away from the water inlet pipe 6 and reset when the coil 3 is powered off. When the coil 3 is powered off, the magnetic field generated disappears, and the suction force between the moving iron core 4 and the fixed iron core 5 is weakened, and the elastic member 8 drives the moving iron core 4 to move away from the water inlet pipe 6 to achieve automatic reset, until the moving iron core 4 is reset to a position against the stop protrusion 71, and the moving iron core 4 is clamped between the stop protrusion 71 and the elastic member 8 and remains motionless. Specifically, the elastic member 8 can be a spring.

[0054] Regarding the detachable connection between the water outlet pipe 7 and the sleeve 2, as a preferred embodiment, Figure 2 , Figure 3 and Figure 5 As shown, the outer side of the water outlet pipe 7 is provided with a first screw-on protrusion 72, and the second end of the sleeve 2 is provided with a first screw-on slot 23. The water outlet pipe 7 is inserted into the second end of the sleeve 2 and rotated in one direction so that the first screw-on protrusion 72 is snapped into the first screw-on slot 23 to achieve axial limit; the first end of the sleeve 2 is provided with a snap-on protrusion 24, and one end of the shell 1 is provided with a snap-on hole 11. The snap-on protrusion 24 is snap-fitted with the snap-on hole 11, and the first screw-on protrusion 72 is pressed against the other end of the shell 1 when snapped into the first screw-on slot 23. It can be understood by those skilled in the art that the water outlet pipe 7 and the sleeve 2 are screwed together through the first screw-on protrusion 72 and the first screw-on slot 23 to achieve a detachable connection between the water outlet pipe 7 and the sleeve 2, and the disassembly and assembly operation of the water outlet pipe 7 is convenient and quick, and can be operated by hand without the aid of auxiliary tooling, and the disassembly and assembly efficiency is high. Specifically, the water outlet pipe 7 rotates in one direction to make the first screw-on protrusion 72 snap into the first screw-on slot 23, and the water outlet pipe 7 rotates in the opposite direction to make the first screw-on protrusion 72 disengage from the first screw-on slot 23 and release the cooperation between the water outlet pipe 7 and the sleeve 2. In addition, when the first screw-on protrusion 72 snaps into the first screw-on slot 23, it is pressed against the other end of the shell 1. Therefore, the cooperation between the first screw-on protrusion 72 and the first screw-on slot 23 can not only realize the fixed connection between the water outlet pipe 7 and the sleeve 2, but also press the shell 1 to limit the position, realizing multi-purpose and functional integration. In order to ensure the sealing of the water outlet pipe 7 and the sleeve 2 after connection, as shown in FIG. Figure 1 and Figure 2 As shown, a first sealing ring 100 may be provided between the water outlet pipe 7 and the sleeve 2 .

[0055] It should be noted that the present application does not specifically limit the structure and location of the fixed iron core 5, and it may adopt any one of the following implementations:

[0056] Implementation method 1: Figures 1 to 4As shown, the water inlet pipe 6 is detachably mounted on the sleeve 2, and at least a portion of the structure of the water inlet pipe 6 is made of a magnetic material to form the fixed iron core 5, so that when the coil 3 is passed with a current of a preset size, the electromagnetic field generated causes the moving iron core 4 to attract the water inlet pipe 6. It can be understood by those skilled in the art that at least a portion of the structure of the water inlet pipe 6 is made of a magnetic material to form the fixed iron core 5, so that the water inlet pipe 6 is not only used to connect the electromagnetic pressure valve with the upstream waterway components, but also acts as the fixed iron core 5 that generates suction with the moving iron core 4 under the action of the electromagnetic field, achieving multi-purpose and functional integration, which helps to simplify the structure of the electromagnetic pressure valve, simplify the assembly process and the cost of accessories. In a preferred embodiment, the water inlet pipe 6 as a whole can be made of food-grade and magnetic materials, such as SUS444 stainless steel. In order to ensure the sealing of the water inlet pipe 6 after being connected and matched with the sleeve 2, as Figure 1 and Figure 2 As shown, a second sealing ring 200 may be provided between the water inlet pipe 6 and the sleeve 2 .

[0057] Regarding the detachable connection between the water inlet pipe 6 and the sleeve 2, as a preferred embodiment, Figures 2 to 4 As shown, the outer side of the water inlet pipe 6 is provided with a second screw-on protrusion 61, and the first end of the sleeve 2 is provided with a second screw-on slot 25. The water inlet pipe 6 is inserted into the first end of the sleeve 2 and rotated in one direction so that the second screw-on protrusion 61 is clamped into the second screw-on slot 25 to achieve axial limit. The water inlet pipe 6 and the sleeve 2 are screwed together through the second screw-on protrusion 61 and the second screw-on slot 25, so that the disassembly and assembly operation of the water inlet pipe 6 is convenient and quick, and can be operated by hand without the aid of auxiliary tooling, and the disassembly and assembly efficiency is high. Specifically, the water inlet pipe 6 rotates in one direction so that the second screw-on protrusion 61 is clamped into the second screw-on slot 25, and the water inlet pipe 6 is rotated in the opposite direction so that the second screw-on protrusion 61 can be disengaged from the second screw-on slot 25 to release the cooperation between the water inlet pipe 6 and the sleeve 2. In other embodiments, the water inlet pipe 6 and the sleeve 2 can also be detachably connected in other suitable ways, such as threaded connection, clamping connection, etc.

[0058] Implementation method 2: Figure 6As shown, the water inlet pipe 6 is integrally connected to the inner side of the sleeve 2 and forms a mounting ring groove 9 with the sleeve 2, the fixed iron core 5 is installed in the mounting ring groove 9, and the water inlet pipe 6 and / or the sleeve 2 are provided with a first limiting protrusion 26, which abuts against the fixed iron core 5 to limit the fixed iron core 5 in the mounting ring groove 9. Different from the aforementioned embodiment 1, in this embodiment, the fixed iron core 5 and the water inlet pipe 6 are separately provided, and the fixed iron core 5 is installed between the water inlet pipe 6 and the sleeve 2, so that the fixed iron core 5 will not come into contact with the water in the water inlet pipe 6, and therefore, the fixed iron core 5 can be made of a magnetic material with a lower cost, such as galvanized iron. In addition, the present application schematically illustrates an embodiment in which the sleeve 2 is provided with a first limit protrusion 26, and the first limit protrusion 26 is abutted against the fixed iron core 5 to confine the fixed iron core 5 in the mounting ring groove 9, effectively preventing the fixed iron core 5 from detaching from the mounting ring groove 9 by itself and affecting the normal use of the electromagnetic pressure valve.

[0059] Implementation method three: Figure 7 As shown, the water inlet pipe 6 is integrally connected to the inner side of the sleeve 2, the fixed iron core 5 is sleeved on the outer side of the sleeve 2 and is located between the coil 3 and the sleeve 2, and the sleeve 2 is provided with a second limiting protrusion 27, and the second limiting protrusion 27 abuts against the fixed iron core 5 to limit the axial movement of the fixed iron core 5 along the sleeve 2. Different from the aforementioned embodiment 1, in this embodiment, the fixed iron core 5 and the water inlet pipe 6 are independently provided, and the fixed iron core 5 is installed on the outer side of the sleeve 2, so that the fixed iron core 5 and the water in the water inlet pipe 6 will not come into contact, so the fixed iron core 5 can be made of a magnetic material with a lower cost, such as an iron galvanized part. In addition, the second limiting protrusion 27 abuts against the fixed iron core 5 to limit the axial movement of the fixed iron core 5 along the sleeve 2, effectively preventing the fixed iron core 5 from moving along the axial direction of the sleeve 2 to interfere with the suction force generated between the coil 3 and the moving iron core 4 when the coil 3 is powered on.

[0060] The present application also provides a heat and air purification machine, including an instant heating element and a hot water discharge port, and also includes the electromagnetic pressure valve as described above, the water inlet pipe 6 is connected to the water outlet of the instant heating element, and the water outlet pipe 7 is connected to the hot water discharge port. In the heat and air purification machine provided by the present application, when the instant heating element delivers hot water to the hot water discharge port, the moving iron core 4 increases the blocking effect on the hot water when the coil 3 is energized, which effectively increases the pressure of the internal water cavity of the instant heating element, so that the instant heating element can truly boil water in areas with high altitude, low air pressure and low water boiling point, ensuring that the temperature of the boiled water received by the user is higher than 95°C, meeting the user's demand for high-temperature boiled water. The heat and air purification machine of the present application includes the electromagnetic pressure valve in any of the above-mentioned embodiments and examples. Therefore, the heat and air purification machine includes other technical effects of the electromagnetic pressure valve, which will not be repeated here.

[0061] Anything not described in this application can be achieved by adopting or drawing on existing technologies.

[0062] 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.

[0063] The above is only an embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. A solenoid pressure valve, characterized in that: It comprises a shell, a sleeve, a coil, a moving iron core, a fixed iron core, a water inlet pipe and a water outlet pipe, wherein: the sleeve is installed in the shell, the coil is wound on the outside of the sleeve, the moving iron core is arranged in the sleeve and can move along the axial direction of the sleeve, and the water inlet pipe and the water outlet pipe are respectively connected to the two ends of the sleeve and communicated through the inner cavity of the sleeve; When a current of a preset magnitude is passed through the coil, the electromagnetic field generated causes the moving iron core and the fixed iron core to attract each other, causing the moving iron core to move toward the water inlet pipe, thereby reducing the water gap formed between the moving iron core and the water inlet pipe; when the coil is powered off, the moving iron core moves away from the water inlet pipe and resets.

2. The electromagnetic pressure valve according to claim 1, characterized in that: The water outlet pipe is provided with a stop convex portion extending toward the inside of the sleeve. When the coil is powered off, the moving iron core is reset to a position against the stop convex portion. A plurality of the stop convex portions are arranged at intervals along the circumference of the water outlet pipe.

3. The electromagnetic pressure valve according to claim 1, characterized in that: The inner surface of the sleeve is provided with protruding limiting ribs, which extend along the axial direction of the sleeve. A plurality of limiting ribs are arranged at intervals along the circumference of the sleeve. The limiting ribs abut against the moving iron core to form a water gap between the inner surface of the sleeve and the moving iron core for connecting the water inlet pipe and the water outlet pipe.

4. The electromagnetic pressure valve according to claim 1, characterized in that: An elastic member is arranged between the moving iron core and the water inlet pipe, and the elastic member drives the moving iron core to move away from the water inlet pipe and reset when the coil is powered off.

5. The electromagnetic pressure valve according to any one of claims 1 to 4, characterized in that: A first rotary buckle protrusion is arranged on the outer side of the water outlet pipe, a first rotary buckle slot is arranged on the second end of the sleeve, the water outlet pipe is inserted into the second end of the sleeve and rotated in one direction so that the first rotary buckle protrusion is inserted into the first rotary buckle slot to realize axial limitation; A buckle protrusion is provided at the first end of the sleeve, and a buckle hole is provided at one end of the shell. The buckle protrusion is engaged with the buckle hole, and the first buckle protrusion is pressed against the other end of the shell when it is inserted into the first buckle slot.

6. The electromagnetic pressure valve according to any one of claims 1 to 4, characterized in that: The water inlet pipe is detachably mounted on the sleeve, and at least part of the structure of the water inlet pipe is made of magnetic material to form the fixed iron core, so that when a current of a preset magnitude passes through the coil, the electromagnetic field generated causes the moving iron core to attract the water inlet pipe.

7. The electromagnetic pressure valve according to claim 6, characterized in that: A second rotary buckle protrusion is arranged on the outer side of the water inlet pipe, and a second rotary buckle groove is arranged on the first end of the sleeve. The water inlet pipe is inserted into the first end of the sleeve and rotated in one direction so that the second rotary buckle protrusion is inserted into the second rotary buckle groove to realize axial limitation.

8. The electromagnetic pressure valve according to any one of claims 1 to 4, characterized in that: The water inlet pipe is integrally connected to the inner side of the sleeve and forms a mounting ring groove with the sleeve. The fixed iron core is installed in the mounting ring groove. The water inlet pipe and / or the sleeve are provided with a first limiting protrusion, which abuts against the fixed iron core to confine the fixed iron core in the mounting ring groove.

9. The electromagnetic pressure valve according to any one of claims 1 to 4, characterized in that: The water inlet pipe is integrally connected to the inner side of the sleeve, the fixed iron core is sleeved on the outer side of the sleeve and is located between the coil and the sleeve, and the sleeve is provided with a second limiting protrusion, which abuts against the fixed iron core to limit the axial movement of the fixed iron core along the sleeve.

10. A heat and air conditioning machine, comprising an instant heating element and a hot water discharge port, characterized in that: It also includes the electromagnetic pressure valve according to any one of claims 1 to 9, the water inlet pipe is connected to the water outlet of the instant heating body, and the water outlet pipe is connected to the hot water discharge port.

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