Magnetic fluid valve and atomizer

Abstract

The magnetic fluid valve comprises a movable part used for blocking fluid release and a magnetic force generator used for releasing a magnetic field, the movable part is provided with a magnet, the magnet is provided with a north magnetic pole and a south magnetic pole which are close to the magnetic field, and the center line of the magnetic field is closer to the magnetic pole, away from the release side, of the magnet. The magnetic generator has an initial state and a use state which can be switched; when the magnetic generator is in an initial state, the magnetic generator can release and attract a magnetic field away from the magnetic pole on one side of the release opening in a power-on state, and the magnet gets close to or keeps the movable part at the position where the release opening is closed due to the magnetic attraction force of the magnetic field. When the magnetic generator is in a use state, the magnetic generator can release and attract a magnetic field of a magnetic pole close to one side of the release opening in a power-on state, and the magnet is subjected to magnetic attraction force of the magnetic field to enable the movable part to move to the position where the release opening is opened.

Description

TECHNICAL FIELD

[0001] The utility model relates to electronic atomization equipment technical field, especially relates to magnetic fluid valve and atomizer. BACKGROUND

[0002] The atomizer, also known as electronic atomizer, is commonly used for medical atomization treatment or cigarette replacement, and the atomizer is commonly composed of an atomization assembly and a power supply assembly, wherein the atomization assembly includes a fluid storage bin, an atomization core and other components, the fluid storage bin provides the atomization core with fluid (atomization substrate or tobacco tar) required for generating aerosol, the atomization core generates aerosol by heating the atomization substrate after being powered, and the power supply assembly provides the atomization core with electric energy required for heating. The existing fluid supply mode is generally divided into active type and passive type, wherein the active type continuously supplies fluid to the atomization core through the release port of the release port of the fluid storage bin, and the passive type uses an operable movable mechanism to close or open the release port.

[0003] The movable mechanism includes an electromagnet, an elastic member and a sealing member, the elastic force of the elastic member is used to seal the release port by the sealing member, wherein the sealing member can be affected by magnetic force, and then the sealing member is opened by the magnetic force generated by the electromagnet to realize the control of the release of the fluid in the storage bin. In the use process, the elastic member is subject to fatigue, and after the elastic force decreases, the sealing strength of the sealing member to the release port will decrease. UTILITY MODEL CONTENT

[0004] The main purpose of the utility model is to provide a magnetic fluid valve and an atomizer, which can improve the sealing performance of the sealing member and the release port.

[0005] To achieve the above-mentioned purpose, on the one hand, the application provides a magnetic fluid valve, which is used to close or open the fluid release port of the atomizer connected to the atomization chamber, and the magnetic fluid valve comprises:

[0006] A magnetic force generator and a movable part capable of moving relative to the magnetic force generator, the movable part comprises:

[0007] A sealing member capable of moving between a first position for closing the release port and a second position for opening the release port;

[0008] A magnet capable of moving the sealing member between the first position and the second position under the operation of external magnetic force, the magnet has a south magnetic pole close to the release port and a north magnetic pole away from the release port;

[0009] A retainer for providing a force for keeping the sealing member in the first position;

[0010] A magnetic force generator for releasing a magnetic field acting on the magnet, the magnetic field having a center line closer to the north magnetic pole, and the magnetic force generator having an initial state and a use state which can be switched;

[0011] In the initial state, the magnetic force generator is capable of releasing a magnetic field attracting the north magnetic pole in an energized state, and the magnet is attracted by the magnetic field to move the movable part to the first position or keep it in the first position.

[0012] In the use state, the magnetic force generator is capable of releasing a magnetic field attracting the south magnetic pole in an energized state, and the magnet is attracted by the magnetic field to move the movable part from the first position to the second position.

[0013] The sealing member in the magnetic fluid valve has a first position for opening and a second position for closing the release port, the magnet is driven by the magnetic field released by the magnetic force generator to move the sealing member between the first position and the second position, and the sealing member or the magnet is also affected by the elastic force of the elastic member, wherein the elastic force is smaller than the magnetic attraction force of the magnetic field on the magnet, so that the magnetic field can keep the sealing member in the first position by the magnetic attraction force on the side of the magnet away from the release port, and after the magnetic field changes the magnetic pole, the magnetic field can release the magnetic attraction force on the side of the magnet close to the release port, so that the magnet drives the sealing member away from the release port.

[0014] In some embodiments, the sealing member is made of a deformable material, and the sealing member is at least partially fixed on the side of the magnet close to the release port.

[0015] In some embodiments, the retainer is an elastic member connected to the sealing member or the magnet and provides the elastic force to keep the sealing member in the first position.

[0016] In some embodiments, the retainer is an electromagnet which provides the same magnetic pole as the opposite end of the magnet, and the electromagnet drives the magnet to keep the sealing member in the first position by magnetic repulsion to close the release port.

[0017] In some embodiments, the magnetic force generator is a conductive coil. The conductive coil is in a spiral shape, and the magnetic field is generated when the current passes through the wire. The center line of the magnetic field is not coaxial with the magnetic axis of the magnet. In some embodiments, the north magnetic pole of the magnet is away from the release port, and the south magnetic pole is close to the release port. When the magnetic field released by the conductive coil is attracted to the north magnetic pole of the magnet, the end of the north magnetic pole of the magnet is close to the magnetic field, and the sealing member keeps the release port sealed. When the direction of the current passing through the conductive coil is changed, the magnetic field released by the conductive coil is repelled from the north magnetic pole of the magnet but attracted to the south magnetic pole of the magnet. The end of the south magnetic pole of the magnet is close to the magnetic field under the action of the magnetic attraction force, and the sealing member is driven by the magnet to move away from the release port. After the release port is opened, the fluid is released from the release port to the outside.

[0018] In some embodiments, the magnetic force generator is an electromagnet. The electromagnet includes an electromagnetic coil, usually made of high-conductivity insulated copper or aluminum wire, and a core (magnetic core), which is wrapped by the electromagnetic coil to enhance the magnetic field.

[0019] In another aspect, the application provides an atomizer, which includes a fluid cartridge having a release port for releasing fluid to the outside, and the magnetic fluid valve as described in any of the preceding aspects, wherein the magnetic force generator is operatively converted between an initial state or a use state to operate the magnet to drive the seal to close or open the release port.

[0020] In some embodiments, the movable part is disposed in the fluid cartridge, the seal is located on the side close to the release port, one end of the elastic member is connected to the magnet or the seal, and the other end of the elastic member is connected to the inner wall of the fluid cartridge; the magnetic force generator is disposed outside the fluid cartridge, and the magnetic force generator operates the magnet by releasing a magnetic field.

[0021] In some embodiments, the seal wraps the magnet, and the surface of the seal is provided with a convex rib in contact with the fluid cartridge.

[0022] In some embodiments, the inside of the fluid cartridge is divided into a fluid storage cavity and a mounting cavity by a partition, the mounting cavity is provided with an opening on the side close to the release port, the movable part is disposed in the mounting cavity, and the seal at least partially passes through the opening to close the release port when in the first position.

[0023] In some embodiments, the partition is provided with an observation hole, and the fluid cartridge is at least partially transparent, so that the position of the movable part can be observed through the observation hole.

[0024] In some embodiments, the atomizer further includes a bracket, the bracket is disposed outside the fluid cartridge, and the magnetic force generator is fixed on the bracket.

[0025] The utility model has obvious advantages and beneficial effects compared with the prior art. The magnetic field generated by the magnetic force generator is used to move the magnet, and the magnet under the magnetic force of the magnetic field drives the seal to move between the first position of being opened and the second position of closing the release port. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 The magnetic fluid valve in the embodiments provided by the application is shown in the first position of closing the release port;

[0027] Figure 2In the embodiments provided in this application, the magnetic fluid valve is in the second position with the release port open;

[0028] Figure 3 This is a partial structural diagram of the atomizer provided in the embodiments of this application;

[0029] Figure 4 This is a schematic cross-sectional view of the atomizer in the embodiments provided in this application;

[0030] Figure 5 for Figure 4 Top view of the atomizer structure;

[0031] Figure 6 This is a schematic diagram of the bottom structure of the seal in the embodiments provided in this application.

[0032] Explanation of icon numbers:

[0033] 1-Atomizer; 10-Atomizing tube; 101-Release port; 11-Moving groove; 111-Limiting part;

[0034] 20-Magnetic fluid valve; 21-Magnetic generator; 22-Seal; 220-Deformation zone; 23-Spring; 24-Magnet; 25-Observation hole; 26-Protrusion. Detailed Implementation

[0035] To make the above-mentioned objects, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0036] In the description of this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0037] Atomizers are commonly used in medical atomization, beauty atomization, and e-cigarettes. This application takes an e-cigarette that generates aerosol by heating an atomizing matrix as an example. The main components of an e-cigarette include a fluid containment chamber, an atomization chamber, and an atomizing core. The fluid containment chamber supplies the fluid (atomizing matrix or e-liquid) required to generate aerosol to the atomizing core through a release port. The atomizing core is located in the atomization chamber. After being powered on, the atomizing matrix is ​​heated to generate aerosol. The power supply component provides the electrical energy required for the atomizing core to generate heat.

[0038] refer to Figures 1-6 As shown, this application provides a magnetic fluid valve 20 for closing or opening a fluid release port 101 on an atomizer 1 that connects to the atomization chamber. The magnetic fluid valve 20 includes a magnetic generator 21 and a movable part that can move relative to the magnetic generator 21. The movable part can move between a first position and a second position of closing and opening the release port 101 under the action of the magnetic force released by the magnetic generator 21.

[0039] The movable part has a first position with the release port 101 open and a second position with the release port 101 closed. The movable part includes a seal 22, a magnet 24, and a retainer. The seal 22 is connected to the magnet 24. Under the action of an external magnetic force, the magnet 24 moves the seal 22 between the first and second positions. The magnet 24 has a south magnetic pole near the release port 101 and a north magnetic pole away from the release port 101. The retainer is directly or indirectly connected to the magnet 24 or the seal 22 and provides a force to hold the seal 22 in the first position. It is understood that when the atomizer 1 is in an unused state, the release port 101 is in an initial closed state; therefore, the seal 22 will remain in the first position with the release port 101 closed.

[0040] The sealing element 22 can be located on the side of the magnet 24 near the release port 101; the sealing element 22 can also enclose the magnet 24. The sealing element 22 is made of food-grade materials such as silicone or rubber. When the sealing element 22 comes into contact with the release port 101, the sealing element 22 is deformed by the force that closes the release port 101. After deformation, the sealing element 22 forms an interference fit with the release port 101 to improve the sealing performance of the release port 101 and prevent the atomized matrix from passing through the release port 101. Figure 1 As shown, the seal 22 encloses the magnet 24, and the retainer releases the force F0 acting on the seal 22, which keeps the seal 22 in the first position of closing the release port 101.

[0041] The sealing element 22 has a deformation zone 220 at one end near the release port 101. This deformation zone 220 deforms and conforms to the wall containing the release port 101 when the release port 101 is closed. Specifically, the deformation zone 220 protrudes outward from the surface of the sealing element 22, forming a protruding structure that substantially surrounds or inserts into the release port 101. After the sealing element 22 contacts the component containing the release port 101, the deformation zone 220 contacts and deforms with the component under the support of the retainer, thus sealing the release port 101.

[0042] The movable part has at least one magnet 24, which, understandably, has two magnetic poles with opposite magnetic properties, typically defined as the N pole and the S pole, respectively. For example... Figure 1 As shown, when there is only one magnet 24, the two magnetic poles are arranged laterally, with the N pole pre-set to be close to the release port 101. When the movable part has two magnets 24, the opposite magnetic poles of the two magnets 24 are located at the same end, with one magnet 24 close to the release port 101.

[0043] The force provided by the retainer can be a magnetic force acting on the magnet 24, or a spring force or thrust acting on the seal 22 or the magnet 24.

[0044] In some embodiments, the retainer may be a magnetic field generator that releases magnetic force. After being energized, the magnetic field generator releases a magnetic force opposite to the magnetic pole of the adjacent magnet 24. The magnetic repulsion between the like poles causes the magnet 24 to drive the seal 22 to remain in the first position and close the release port 101.

[0045] In some embodiments, the retainer is a spring 23. For example... Figure 1 As shown, one end of the spring 23 is kept fixed, and the other end of the spring 23 is connected to the seal 22. The elastic force of the spring 23 keeps the seal 22 in the first position of closing the release port 101.

[0046] The magnetic generator 21 can be a conductive coil or an electromagnet 24. The conductive coil is usually made of highly conductive insulated copper or aluminum wire wound in a spiral shape. When current passes through the wire, a magnetic field is generated. The center line of the magnetic field is not coaxial with the magnetic axis of the magnet 24. The electromagnet 24 includes a conductive coil and an iron core (magnetic core). The iron core is wrapped by the conductive coil. When the conductive coil is energized, it generates a magnetic field. The iron core concentrates the magnetic field lines, greatly enhancing the magnetic field strength.

[0047] The magnetic generator 21 has an initial state and an operating state with switchable magnetic field poles. It is understood that both the conductive coil and the electromagnet 24 can release a magnetic field when energized. See also... Figure 1 or Figure 2 As shown, the magnetic field released by the magnetic generator 21 has a center line Z1, and the magnet 24 has a magnetic axis Z2, with Z1 and Z2 being non-axial. It can be understood that when the release port 101 is closed, the magnetic pole of the magnet 24 that is away from the release port 101 has a magnetic attraction to the magnetic generator 21.

[0048] In some embodiments, the magnetic generator 21 has two states: power-off and power-on, corresponding to the initial state and the usage state, respectively. (See reference) Figure 1 As shown, the magnetic generator 21 uses an electromagnet 24, which is preset in a relatively fixed position. When the power is off, the electromagnet 24 is in its initial state and does not output a magnetic field, but there is a magnetic attraction between the iron core and the magnet 24. Supported by the spring force of the spring 23, the S pole of the magnet 24 moves away from the iron core and closer to the release port 101. Since the S pole of the magnet 24 is close to the iron core, the magnetic attraction of the magnet 24 can attract the iron core. This magnetic attraction further keeps the magnet 24 in the first position, and the release port 101 is sealed by the sealing member 22.

[0049] like Figure 2 As shown, when the electromagnet 24 is energized, it releases a magnetic field, and the magnetic poles of the magnetic field are the same as the S pole, generating a magnetic repulsion force. The N pole of the magnet 24 is opposite to the magnetic field pole, generating a magnetic attraction force. Because the S pole of the magnet 24 is greater than the elastic force F0 due to the interaction force F2 of the magnetic attraction and magnetic repulsion, the magnet 24 moves towards the direction of the magnetic field and drives the sealing member 22 to move away from the first position and away from the second position of the release port 101, so that the release port 101 is in the open state.

[0050] In one embodiment, the magnetic generator 21 has an initial state in the forward current direction and a usage state in the reverse current direction. (See reference...) Figure 1As shown, the magnetic generator 21 uses an electromagnet 24. The N pole of the electromagnet 24 is close to the release port 101, and the S pole is close to the center line of the magnetic field of the electromagnet 24. Pre-set, the magnetic poles released by the electromagnet 24 in the initial state are opposite to the S pole, generating a magnetic attraction. The magnetic repulsion between the magnetic field and the N pole of the electromagnet 24 is less than the magnetic attraction between the magnetic field and the S pole. This magnetic attraction further keeps the electromagnet 24 in the first position, and the release port 101 is sealed by the sealing element 22. (Reference) Figure 2 As shown, the electromagnet 24 is in use, and the magnetic field of the release port 101 is the same as that of the S pole. The N pole of the magnet 24 is attracted to the magnetic field released by the electromagnet 24. Since the S pole is close to the magnetic field and the N pole is far away from the magnetic field in the initial state, the magnetic repulsion force of the magnetic field on the S pole is greater than the magnetic attraction force of the magnetic field on the N pole and the elastic force F0 of the magnet 24. When the interaction force F2 of the magnetic attraction force and the magnetic repulsion force is greater than the elastic force F0, the magnet 24 drives the sealing member 22 to move to a second position away from the release port 101, and the release port 101 is in the open state.

[0051] When the conductive coil is energized, it can release a magnetic field. The magnetic field released has the same effect as the magnetic field released by the electromagnet 24. This application will not elaborate on the interaction principle between the conductive coil and the magnet 24.

[0052] On the other hand, such as Figures 3-5 As shown, this application provides an atomizer 1, which includes a fluid chamber, an atomization chamber, and a magnetic fluid valve 20 as described in any of the foregoing embodiments. The fluid chamber has a release port 101 for releasing fluid into the atomization chamber, and a magnetic generator 21 is operatively switched between an initial state and a use state to operate a magnet 24 to drive a seal 22 to close or open the release port 101.

[0053] The fluid chamber has a space for storing the atomizing matrix, and a release port 101 for releasing the atomizing matrix is ​​provided on the fluid chamber. In some embodiments, the atomizing chamber is defined by the interior of the atomizing tube 10, the atomizing core of the atomizer 1 is disposed inside the atomizing tube 10, the atomizing tube 10 and a hollow outer shell inner wall define the fluid chamber, and the release port 101 is provided on the atomizing tube 10. A movable part is disposed inside the fluid chamber, a seal 22 is located on the side near the release port 101, one end of a spring 23 is connected to a magnet 24 or a seal 22, and the other end of the spring 23 is connected to the inner wall of the outer shell; a magnetic generator 21 is disposed outside the fluid chamber, and the magnetic generator 21 operates the magnet 24 by releasing a magnetic field, and drives the seal 22 to move between a first position and a second position through the magnet.

[0054] Specifically, the fluid chamber is provided with a movable slot 11, and the movable part is movably installed within the movable slot 11. For example... Figure 4As shown, the end of the seal 22 away from the release port 101 has a positioning post connected to the spring 23. One end of the spring 23 is connected to the end of the movable groove 11 away from the release port 101, and the other end of the spring 23 is connected to the positioning post. Supported by the elastic force of the spring 23, the end of the seal 22 near the release port 101 passes through the movable groove 11 and abuts against the atomizing tube 10 at the first position where the release port 101 can be closed.

[0055] Furthermore, the movable groove 11 is provided with a limiting part 111, and the edge of the movable part is provided with a protrusion 26 that cooperates with the limiting part 111 to limit the range of movement of the movable part. One end of the limiting part 111 is close to the release port 101, and the other end is away from the release port 101, and the two ends respectively define a first position where the movable part can close the release port 101 and a second position where the release port 101 can be opened. Figure 5 As shown, the movable groove 11 has a length direction that extends radially along the atomizing tube 10. Recessed limiting portions 111 are provided on both sides of the movable groove 11, and protrusions 26 installed in the limiting portions 111 are provided on both sides of the movable portion.

[0056] It is known that the moving part will come into contact with the inner wall of the shell during movement, generating friction. Combined with... Figure 1 and Figure 6 As shown, the seal 22 encloses the magnet 24, and the surface of the seal 22 is provided with protrusions that contact the fluid chamber. The protrusions reduce the friction between the moving part and the inner wall of the fluid chamber.

[0057] In some embodiments, the fluid chamber is divided by a partition into a fluid receiving cavity and an installation cavity, the fluid receiving cavity being used to store the atomized matrix. For example... Figure 5 As shown, the partition is installed on the movable groove 11, and the partition and the movable groove 11 define an installation cavity. The installation cavity has an opening on the side near the release port 101. The movable part is set in the installation cavity. The sealing member 22 is in the first position under the support of the spring 23. A part of the sealing member 22 passes through the opening and abuts against the atomizing tube 10 to close the release port 101.

[0058] In some embodiments, the partition is provided with observation holes 25, and the fluid chamber is at least partially transparent, allowing the position of the moving part to be seen through the observation holes 25. Further, the partition is provided with at least two observation holes 25 between the first position and the second position, allowing different positions of the moving part to be seen through each observation hole 25.

[0059] In some embodiments, the atomizer 1 further includes a support frame disposed outside the fluid chamber, and the magnetic generator 21 is fixed to the support frame. It is understood that the atomizer 1 also has a power supply, and the magnetic generator 21 is electrically connected to the power supply.

[0060] The above description is only a part or preferred embodiment of this utility model. Neither the text nor the drawings should limit the scope of protection of this utility model. All equivalent structural transformations made using the content of this utility model specification and drawings under the overall concept of this utility model, or direct / indirect applications in other related technical fields, are included within the scope of protection of this utility model.

Claims

1. A magnetic fluid valve for closing or opening a fluid release port on an atomizer that connects to the atomization chamber, characterized in that, include: A magnetic force generator and a movable part that can move relative to the magnetic force generator, the movable part comprising: The seal is movable between a first position that closes the release port and a second position that opens the release port; A magnet, capable of moving the seal between a first position and a second position under the operation of an external magnetic force, the magnet having a south magnetic pole near the release port and a north magnetic pole away from the release port; A retainer for providing a force to hold the seal in a first position; A magnetic generator is used to release a magnetic field acting on the magnet, the centerline of which is closer to the north magnetic pole, and the magnetic generator has a switchable initial state and a working state. In its initial state, the magnetic generator can release a magnetic field that attracts the north magnetic pole when energized. The magnet is attracted by the magnetic field, causing the movable part to approach or remain in the first position. When the magnetic generator is in use, it can release a magnetic field that attracts the south magnetic pole when it is powered on. The magnet is attracted by the magnetic field, which causes the movable part to move from the first position to the second position.

2. The magnetic fluid valve according to claim 1, characterized in that, The seal is made of a deformable material and is at least partially fixed to the side of the magnet near the release port.

3. The magnetic fluid valve according to claim 1, characterized in that, The magnetic generator is a conductive coil.

4. The magnetic fluid valve according to claim 1, characterized in that, The magnetic generator is an electromagnet.

5. An atomizer, characterized in that, The device includes a fluid chamber and a magnetic fluid valve as described in any one of claims 1 to 4, the fluid chamber having a release port for discharging fluid to the outside, and the magnetic generator being operatively switched between an initial state and a use state to operate the magnet to actuate the seal to close or open the release port.

6. The atomizer according to claim 5, characterized in that, The movable part is disposed inside the fluid chamber, the seal is located on the side near the release port, the retainer is disposed between the inner wall of the fluid chamber and the magnet or between the inner wall and the seal; the magnetic generator is disposed outside the fluid chamber, and the magnetic generator operates the magnet by releasing a magnetic field.

7. The atomizer according to claim 5, characterized in that, The seal encloses the magnet, and the surface of the seal has protrusions that contact the fluid chamber.

8. The atomizer according to claim 5, characterized in that, The fluid chamber is divided into a fluid receiving chamber and an installation chamber by a partition. The installation chamber has an opening on the side near the release port. The movable part is disposed in the installation chamber. When the seal is in the first position, it at least partially passes through the opening and then closes the release port.

9. The atomizer according to claim 8, characterized in that, The partition is provided with an observation hole, and the fluid chamber is at least partially transparent, allowing the position of the moving part to be seen through the observation hole.

10. The atomizer according to claim 5, characterized in that, The atomizer also includes a bracket, which is disposed outside the fluid chamber, and the magnetic generator is fixed on the bracket.

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