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 present invention relates to the technical field of electronic atomization devices, and particularly to a magnetic fluid valve and an atomizer. Background Art

[0002] An atomizer, also known as an electronic atomizer, is commonly used for medical atomization treatment or cigarette substitution. The common main components of an atomizer include an atomization component and a power supply component. Among them, the atomization component includes components such as a fluid storage chamber and an atomization core. The fluid storage chamber provides the fluid (atomization matrix or e-liquid) required for the atomization core to generate aerosol. After being powered on, the atomization core heats the atomization matrix to generate aerosol, and the power supply component provides the electrical energy required for the atomization core to generate heat. The existing fluid supply methods are generally divided into active and passive types. Among them, the active type is that the fluid is continuously supplied to the atomization core through the release port for releasing the fluid on the storage chamber; the passive type uses an operable moving mechanism to close or open the release port.

[0003] The moving mechanism includes an electromagnet, an elastic member, and a seal. The elastic force of the elastic member is used to make the seal seal the release port. Among them, the seal can be affected by magnetic force, and then the electromagnet is used to generate magnetic force to open the seal of the release port to control the release of the fluid in the storage chamber. During use, the elastic member has fatigue in use. After the elastic force decreases, the sealing strength of the seal to the release port will decrease. Summary of the Invention

[0004] The main object of the present invention is to propose a magnetic fluid valve and an atomizer, which can improve the sealing performance between the seal and the release port.

[0005] To achieve the above object, on the one hand, the present application provides a magnetic fluid valve, which is used to close or open the fluid release port on the atomizer communicating with the atomization chamber. The magnetic fluid valve includes:

[0006] A magnetic force generator and a movable part that can move relative to the magnetic force generator. The movable part includes:

[0007] A seal that can move between a first position for closing the release port and a second position for opening the release port;

[0008] A magnet that can drive the seal to move between the first position and the second position under the operation of an external magnetic force. The magnet has a south pole close to the release port and a north pole far from the release port;

[0009] A retainer for providing a force to hold the seal in the first position;

[0010] A magnetic force generator for releasing a magnetic field acting on the magnet. The center line of the magnetic field is closer to the north pole, and the magnetic force generator has a switchable initial state and use state;

[0011] In the initial state of the magnetic force generator, the magnetic force generator can release a magnetic field that attracts the north magnetic pole when energized, and the magnet is attracted by the magnetic force of the magnetic field to bring the movable part closer to or maintain it at the first position;

[0012] In the operating state of the magnetic force generator, the magnetic force generator can release a magnetic field that attracts the south magnetic pole when energized, and the magnet is attracted by the magnetic force of the magnetic field to enable the movable part to obtain a force to move from the first position to the second position.

[0013] The seal in the above magnetic fluid valve has an open first position and a second position that closes the release port. The magnet is driven by the magnetic field released by the magnetic force generator to move the seal between the first position and the second position. Moreover, the seal or the magnet is also affected by the elastic force of the elastic member at the same time. Among them, the elastic force is less than the magnetic attraction force of the magnetic field on the magnet. Therefore, the magnetic field can keep the seal at the first position by the magnetic attraction force on the side of the magnet away from the release port. After the magnetic pole of the magnetic field changes, the magnetic field can release a magnetic attraction force on the magnetic pole of the magnet close to the release port, causing the magnet to drive the seal away from the release port.

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

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

[0016] In some embodiments, the retainer is an electromagnet. The electromagnet provides the same magnetic pole as the opposite end magnetic pole of the magnet, and keeps the magnet driving the seal at the first position through 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. When current passes through the wire, a magnetic field will be generated, and the center line of the magnetic field is not coaxial with the magnetic axis of the magnet. In some embodiments, it is preset that the north magnetic pole of the magnet is far from the release port and the south magnetic pole is close to the release port. When the magnetic pole of the magnetic field released by the conductive coil attracts the north magnetic pole of the magnet, the north magnetic pole end of the magnet approaches the magnetic field, and the seal keeps the release port sealed; when the direction of the current passing through the conductive coil is changed, the magnetic pole of the magnetic field released by the conductive coil repels the north magnetic pole of the magnet, but attracts the south magnetic pole of the magnet. The south magnetic pole end of the magnet approaches the magnetic field under the action of the magnetic attraction force, and the seal 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 and an iron core (magnetic core). The electromagnetic coil is usually wound with an insulated copper wire or aluminum wire with high electrical conductivity. After being energized, a magnetic field is generated, and the iron core is wrapped by the electromagnetic coil to enhance the magnetic field.

[0019] On the other hand, the present application provides an atomizer, which includes a fluid chamber and the magnetic fluid valve described in any one of the foregoing items. The fluid chamber has a release port for releasing fluid to the outside. The magnetic force generator is operatively switched between an initial state and 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 arranged inside the fluid chamber, the seal is located on one 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 chamber; the magnetic force generator is arranged outside the fluid chamber, 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 convex ridges in contact with the fluid chamber.

[0022] In some embodiments, the inside of the fluid chamber is separated into a fluid receiving cavity and an installation cavity by a partition. An opening is provided on one side of the installation cavity close to the release port. The movable part is arranged in the installation cavity, and when the seal is in the first position, it at least partially passes through the opening and then closes the release port.

[0023] In some embodiments, an observation hole is provided on the partition, and at least part of the fluid chamber is transparent. Through the fluid chamber, the position of the movable part can be seen through the observation hole.

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

[0025] Compared with the prior art, the present invention has obvious advantages and beneficial effects. By releasing a magnetic field that operates the magnet to move through the magnetic force generator, the magnet under the action of the magnetic force of the magnetic field drives the seal to move between the first open position and the second position where the release port is closed. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the magnetic fluid valve in the embodiment provided by the present application, wherein the magnetic fluid valve is in the first position of closing the release port;

[0027] Figure 2 It is the second position of the magnetic fluid valve in the embodiment provided by the present application when the release port is open;

[0028] Figure 3 Schematic diagram of the partial structure of the atomizer in the embodiment provided for this application;

[0029] Figure 4 Schematic cross-sectional view of the structure of the atomizer in the embodiment provided for this application;

[0030] Figure 5 is Figure 4 Top view of the atomizer structure in

[0031] Figure 6 Schematic diagram of the bottom structure of the seal in the embodiment provided for this application.

[0032] Explanation of the reference numerals in the drawings:

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

[0034] 20 - Magnetic fluid valve; 21 - Magnetic force generator; 22 - Seal; 220 - Deformation area; 23 - Spring; 24 - Magnet; 25 - Observation hole; 26 - Convex part. Detailed implementation manners

[0035] To make the above objects, features, and advantages of this application more obvious and understandable, the following will describe the detailed implementation manners of this application in conjunction with the drawings. Many specific details are set forth in the following description in order to fully understand 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 improvements without departing from the connotation of this application. Therefore, this application is not limited by the specific embodiments disclosed below. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this application belongs. The terms used herein in the description of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0036] In the description of this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed", etc. shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0037] Atomizers are commonly used in medical atomization, beauty atomization, e-cigarettes, etc. In this application, taking an e-cigarette that generates aerosol by heating an atomization matrix as an example, the main components of the e-cigarette include components such as a fluid storage chamber, an atomization chamber, and an atomization core. The fluid storage chamber provides the fluid (atomization matrix or e-liquid) required to generate aerosol to the atomization core through a release port. The atomization core is arranged in the atomization chamber. After being powered on, the atomization core heats the atomization matrix to generate aerosol, and the power supply component provides the electrical energy required for the atomization core to generate heat.

[0038] Reference Figures 1-6 As shown, in this application, a magnetic fluid valve 20 is provided. The magnetic fluid valve 20 is used to close or open the fluid release port 101 on the atomizer 1 that communicates with the atomization chamber. The magnetic fluid valve 20 includes a magnetic force generator 21 and a movable part that can move relative to the magnetic force generator 21. The movable part can move between a first position and a second position that close and open the release port 101 under the action of the magnetic force released by the magnetic force generator 21.

[0039] The movable part has a first position for opening the release port 101 and a second position for closing the release port 101. 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 drives the seal 22 to move between the first position and the second position. The magnet 24 has a south pole close to the release port 101 and a north pole far 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 can be 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 be held in the first position of closing the release port 101.

[0040] The seal 22 can be arranged on the side of the magnet 24 close to the release port 101; the seal 22 can also wrap the magnet 24. The seal 22 is made of food-grade materials such as silica gel or rubber. When the seal 22 contacts the release port 101, the seal 22 is deformed by the force of closing the release port 101. After deformation, the seal 22 forms an interference fit with the release port 101 to improve the sealing of the release port 101 and prevent the atomization matrix from passing through the release port 101. As Figure 1 shown, the seal 22 wraps the magnet 24, and the retainer releases the force F0 acting on the seal 22. F0 keeps the seal 22 in the first position of closing the release port 101.

[0041] One end of the seal 22 close to the release port 101 is provided with a deformation zone 220 which, when closing the release port 101, fits against the wall having the release port 101 through deformation. Specifically, the deformation zone 220 protrudes outward from the surface of the seal 22 and forms a protruding structure that generally surrounds or inserts into the release port 101. After the seal 22 comes into contact with the component having the release port 101, with the support of the retainer, the deformation zone 220 comes into contact with the component and deforms, closing the release port 101.

[0042] The movable part has at least one magnet 24. It is understandable that the magnet 24 has two magnetic poles with opposite polarities, which are usually defined as the N pole and the S pole respectively. As Figure 1 shown, when there is only one magnet 24, the two magnetic poles are arranged horizontally, and it is preset that the N pole is close to the release port 101. When the movable part has two magnets 24, the opposite-sex magnetic poles of the two magnets 24 are located at the same end, and one of the magnets 24 is close to the release port 101.

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

[0044] In some embodiments, the retainer can 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, and through the magnetic repulsion between like poles, the magnet 24 drives the seal 22 to be held in the first position and closes the release port 101.

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

[0046] The magnetic force generator 21 can be a conductive coil or an electromagnet 24. Among them, the conductive coil is usually wound in a spiral shape with insulated copper wire or aluminum wire with high conductivity. When an electric current passes through the wire, a magnetic field is generated, and 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, and when the conductive coil is energized, a magnetic field is generated, and the iron core concentrates the magnetic induction lines, greatly enhancing the magnetic field strength.

[0047] The magnetic force generator 21 has an initial state and a use state in which the magnetic field poles can be switched. It is understandable that both the conductive coil and the electromagnet 24 can release a magnetic field in the energized state. See Figure 1 or Figure 2As shown, the magnetic field released by the magnetic force generator 21 has a center line Z1, and the magnet 24 has a magnetic axis Z2. Z1 and Z2 are not coaxial. It can be understood that when the release port 101 is in a closed state, there is a magnetic attraction force between the magnetic pole of the magnet 24 that is far from the release port 101 and the magnetic force generator 21.

[0048] In some embodiments, the magnetic force generator 21 has two states: powered off and powered on, and these two states respectively correspond to the initial state and the use state. Refer to Figure 1 As shown, the magnetic force generator 21 uses an electromagnet 24. The electromagnet 24 is preset at a relatively fixed position. In the powered-off state, the electromagnet 24 is in the initial state and does not output a magnetic field, but there is a magnetic attraction force between the iron core and the magnet 24. The S pole of the magnet 24 is far from the iron core and close to the release port 101 under the support of the elastic force of the spring 23. When the S pole of the magnet 24 approaches the iron core, the magnetic attraction force of the magnet 24 can attract the iron core, and the magnetic attraction force further keeps the magnet 24 in the first position, and the release port 101 is closed by the seal 22.

[0049] As Figure 2 shown, when the electromagnet 24 is in the powered-on use state, it releases a magnetic field, and the magnetic pole of the magnetic field is the same as the S pole, and a magnetic repulsion force is generated. The N pole of the magnet 24 generates a magnetic attraction force due to the opposite magnetic pole of the magnetic field. Since the interaction force F2 between the magnetic attraction force and the magnetic repulsion force of the S pole of the magnet 24 is greater than the elastic force F0, the magnet 24 moves in the direction close to the magnetic field, and drives the seal 22 to move from the first position to the second position away from the release port 101, and the release port 101 is in an open state.

[0050] In one embodiment, the magnetic force generator 21 has an initial state with a forward current direction and a use state with a reverse current direction. Refer to Figure 1 As shown, the magnetic force generator 21 uses an electromagnet 24. The N pole of the magnet 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. It is preset that the magnetic pole released by the electromagnet 24 in the initial state is opposite to the S pole, and the two generate a magnetic attraction force. The magnetic repulsion force between the magnetic field and the N pole of the magnet 24 is less than the magnetic attraction force between the magnetic field and the S pole. The magnetic attraction force further keeps the magnet 24 in the first position, and the release port 101 is closed by the seal 22. Refer to Figure 2 As shown, the electromagnet 24 is in the use state, and the magnetic field with the same magnetic pole as the S pole is released at the release port 101. The N pole of the magnet 24 is attracted by the magnetic field released by the electromagnet 24. Since the S pole is close to the magnetic field and the N pole is far 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 received by the magnet 24. When the interaction force F2 between the magnetic attraction force and the magnetic repulsion force is greater than the elastic force F0, the magnet 24 drives the seal 22 to move to the second position away from the release port 101, and the release port 101 is in an open state.

[0051] After being energized, the conductive coil can release a magnetic field, and the released magnetic field has the same effect as the magnetic field released by the electromagnet 24. The interaction principle between the conductive coil and the magnet 24 will not be elaborated in this application.

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

[0053] The fluid chamber has a space for storing the atomization matrix, and a release port 101 for releasing the atomization matrix is provided on the fluid chamber. In some embodiments, the atomization chamber is defined inside the atomization tube 10, the atomization core of the atomizer 1 is arranged inside the atomization tube 10, the atomization tube 10 and the inner wall of a hollow outer shell define the fluid chamber, and the release port 101 is opened on the atomization tube 10. The movable part is arranged inside the fluid chamber, the seal 22 is located on one side close to the release port 101, one end of the spring 23 is connected to the magnet 24 or the seal 22, and the other end of the spring 23 is connected to the inner wall of the outer shell; the magnetic force generator 21 is arranged outside the fluid chamber, and the magnetic force generator 21 operates the magnet 24 to move 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, an activity groove 11 is arranged inside the fluid chamber, and the movable part is movably installed inside the activity groove 11. As Figure 4 shown, one end of the seal 22 away from the release port 101 has a positioning post for connecting the spring 23, one end of the spring 23 is connected to the end of the activity 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, one end of the seal 22 close to the release port 101 passes through the activity groove 11 and abuts against the atomization tube 10 at the first position where the release port 101 can be closed.

[0055] Furthermore, a limiting part 111 is arranged on the activity groove 11, and a convex part 26 is arranged on the edge of the movable part and is matched with the limiting part 111 to limit the moving range 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. The two ends respectively define the first position where the movable part can close the release port 101 and the second position where the release port 101 is opened. As Figure 5 shown, the activity groove 11 has a length direction extending radially along the atomization tube 10. Concave limiting parts 111 are respectively arranged on both sides of the activity groove 11, and convex parts 26 installed inside the limiting parts 111 are respectively arranged on the side edges of both sides of the movable part.

[0056] It is known that the movable part contacts the inner wall of the housing during movement and generates frictional force. Combining Figure 1 and Figure 6 as shown, the seal 22 wraps the magnet 24, and the surface of the seal 22 is provided with convex ribs that contact the fluid chamber. The convex ribs reduce the frictional force between the movable part and the inner wall of the fluid chamber.

[0057] In some embodiments, the interior of the fluid chamber is separated by a partition into a fluid storage cavity and an installation cavity, and the fluid storage cavity is used to store the atomization matrix. As Figure 5 shown, the partition is installed on the movable groove 11. The partition and the movable groove 11 define the installation cavity. An opening is provided on one side of the installation cavity close to the release port 101. The movable part is arranged in the installation cavity. The seal 22 is in the first position under the support of the spring 23. A part of the seal 22 passes through the opening and abuts against the atomization tube 10 to close the release port 101.

[0058] In some embodiments, the partition is provided with an observation hole 25, and at least part of the fluid chamber is transparent. The position of the movable part can be seen through the observation hole 25 through the fluid chamber. Further, at least two observation holes 25 between the first position and the second position are provided on the partition, and different positions of the movable part can be seen through each observation hole 25.

[0059] In some embodiments, the atomizer 1 further includes a bracket. The bracket is arranged outside the fluid chamber, and the magnetic generator 21 is fixed on the bracket. It can be understood that the atomizer 1 also has a power source, and the magnetic generator 21 is electrically connected to the power source.

[0060] The above are only partial or preferred embodiments of the present invention. Neither the text nor the drawings can limit the scope of protection of the present invention. Any equivalent structural transformation made using the content of the specification and drawings of the present invention under the overall concept of the present invention, or direct / indirect application in other related technical fields is included in the scope of protection of the present invention.

Claims

1. A magnetic fluid valve, used to close or open a fluid release port on an atomizer connected to an atomizing chamber, characterized in that: include: A magnetic force generator and a movable part capable of moving relative to the magnetic force generator, the movable part comprising: a sealing member movable between a first position closing the release opening and a second position opening the release opening; a magnet capable of driving the sealing member to move between a first position and a second position under the operation of an external magnetic force, the magnet having a south magnetic pole close to the release port and a north magnetic pole away from the release port; a retainer for providing a force to retain the seal in the first position; A magnetic force generator, used for releasing a magnetic field acting on the magnet, wherein the center line of the magnetic field is closer to the north magnetic pole, and the magnetic force generator has a switchable initial state and a use state; In the initial state, the magnetic force generator can release a magnetic field that attracts the north magnetic pole when powered on, and the magnet is attracted by the magnetic field to make the movable part approach or remain in the first position; When the magnetic force generator is in use, the magnetic force generator can release a magnetic field that attracts the south magnetic pole when powered on, and the magnet is attracted by the magnetic field to enable the movable part to obtain a force to move from the first position to the second position.

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

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

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

5. An atomizer, characterized in that: It comprises a fluid chamber and a magnetic fluid valve as claimed in any one of claims 1 to 4, wherein the fluid chamber has a release port for releasing fluid to the outside, and the magnetic generator is operated to switch between an initial state and a use state to operate the magnet to drive the seal to close or open the release port.

6. The atomizer according to claim 5, characterized in that The movable part is arranged in the fluid warehouse, the sealing part is located on the side close to the release port, and the retainer is arranged between the inner wall of the fluid warehouse and the magnet or between the inner wall and the sealing part; the magnetic generator is arranged outside the fluid warehouse, and the magnetic generator operates the magnet by releasing the magnetic field.

7. The atomizer according to claim 5, characterized in that The sealing member wraps the magnet, and a convex ridge in contact with the fluid chamber is provided on the surface of the sealing member.

8. The atomizer according to claim 5, characterized in that The interior of the fluid bin is divided into a fluid containing chamber and an installation chamber by a partition. An opening is provided on one side of the installation chamber close to the release port. The movable part is arranged 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, so that the position of the movable part can be seen through the observation hole through the fluid chamber.

10. The atomizer according to claim 5, characterized in that The atomizer further comprises a bracket, wherein the bracket is arranged outside the fluid compartment, and the magnetic generator is fixed on the bracket.

Images