Cigarette filter

Abstract

The utility model provides a cigarette filter which comprises a barrel, an electric fan and filter cotton, a first opening and a second opening communicated with the first opening are formed in the two ends of the barrel respectively, a filter cavity communicated with the second opening and a combustion cavity communicated with the filter cavity are formed in the barrel, and the combustion cavity is located between the filter cavity and the first opening. The filter cotton is filled in the filter cavity, the electric fan is arranged in the barrel and located between the second opening and the filter cotton, the cigarette filter allows a smoker to place a cigarette in the combustion cavity and smoke through one end (the first opening) of the barrel, and the smoker does not need to worry that the smoke is directly discharged into the surrounding environment. The electric fan is located between the second opening and the filter cotton and is used for driving gas (including smoke) in the combustion cavity to flow towards the second opening, and the gas is filtered through the filter cotton. By means of the design, the smoke filtering efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of cigarette filters, in particular to a cigarette filter. BACKGROUND

[0002] In today's society, with the continuous improvement of people's health consciousness, environmental protection problems are increasingly valued. The smoking problem in public places, especially the impact of second-hand smoke on non-smokers' health, has become the focus of social attention.

[0003] However, smokers often have difficulty finding a legal smoking area when they need to smoke. Even in places where smoking areas are set up, due to unreasonable design or poor management, the smoking area may not be able to effectively isolate the smoke, thereby polluting the surrounding environment.

[0004] Against this background, it is particularly important to provide a cigarette filter that can meet the needs of smokers while avoiding the spread of smoke to the outside environment and affecting others. CONTENT OF THE INVENTION

[0005] Therefore, it is necessary to provide a cigarette filter to solve the above problems.

[0006] Embodiments of the present application provide a cigarette filter, comprising:

[0007] a cylinder, the cylinder has a first opening and a second opening communicated with the first opening at both ends respectively, the cylinder has a filter cavity communicated with the second opening and a combustion cavity communicated with the filter cavity inside, the combustion cavity is located between the filter cavity and the first opening;

[0008] filter cotton, the filter cotton is filled in the filter cavity;

[0009] an electric fan, provided in the cylinder, the electric fan is located between the second opening and the filter cotton;

[0010] When the cigarette filter is used, one end of the cylinder provided with the first opening is attached to the mouth to block the direct communication between the first opening and the outside, the cigarette is burned in the combustion cavity, the electric fan drives the gas in the combustion cavity to flow to the second opening, and the filter cotton filters the smoke in the gas.

[0011] In at least one embodiment of the present application, a fitting area is formed between the first opening and the combustion cavity, and the fitting area is communicated with the first opening and the combustion cavity at the same time;

[0012] When the mouth is attached to the first opening, the mouth is located in the fitting area.

[0013] In at least one embodiment of the present application, the cigarette filter further comprises:

[0014] A cigarette holder is detachably connected in the cylinder, and is located between the combustion cavity and the adhesion area. When the cigarette filter is used, the cigarette is fixed on the cigarette holder.

[0015] In at least one embodiment of the present application, the cigarette holder comprises:

[0016] A magnetic fixing plate is magnetically attracted in the cylinder. A communication hole is formed in the magnetic fixing plate, and the communication hole communicates the combustion cavity and the adhesion area.

[0017] A magnetic fixing block is magnetically attracted on one side of the magnetic fixing plate.

[0018] A plastic part is arranged on the side of the magnetic fixing plate with the magnetic fixing block, and the magnetic fixing block and the plastic part are in sliding connection.

[0019] A clamping hole is formed in the plastic part. One side of the clamping hole is in communication with the combustion cavity, and the other side of the clamping hole is in communication with the outside. The clamping hole is located on the sliding path of the magnetic fixing block, and the cigarette penetrates through the clamping hole.

[0020] In at least one embodiment of the present application, the cigarette filter further comprises:

[0021] A connecting piece is magnetically attracted in the cylinder. The electric fan is fixed on the connecting piece, and the electric fan is arranged in the cylinder through the connecting piece.

[0022] In at least one embodiment of the present application, the cigarette filter further comprises:

[0023] A cigarette lighter is arranged in the cylinder, and the cigarette lighter is located in the combustion cavity.

[0024] In at least one embodiment of the present application, the cigarette filter further comprises:

[0025] A power supply assembly is arranged in the cylinder. The power supply assembly is electrically connected with the cigarette lighter and the electric fan.

[0026] A switch assembly is arranged in the cylinder. The switch assembly is located between the power supply assembly and the cigarette lighter and between the power supply assembly and the electric fan.

[0027] The switch assembly is used to simultaneously cut off or connect the electrical connection between the power supply assembly and the cigarette lighter and the electrical connection between the power supply assembly and the electric fan.

[0028] In at least one embodiment of the present application, a silica gel heat insulation piece is arranged in the barrel, and the silica gel heat insulation piece is arranged in the combustion cavity and adheres to the inner wall of the barrel.

[0029] In at least one embodiment of the present application, the power supply assembly comprises:

[0030] A power supply circuit board is electrically connected with the cigarette lighter, the switch assembly and the electric fan;

[0031] A charging interface is arranged on the power supply circuit board, and the power supply circuit board is electrically connected with the charging interface;

[0032] A battery is arranged in the barrel, and the battery is electrically connected with the power supply circuit board;

[0033] An electric suction interface is electrically connected with the power supply circuit board, and the electric suction interface is electrically connected with the electric fan, so that the power supply circuit board is electrically connected with the electric fan through the electric suction interface.

[0034] In at least one embodiment of the present application, the switch assembly comprises:

[0035] A switch circuit board is electrically connected with the power supply circuit board, the cigarette lighter and the electric fan;

[0036] A control button is electrically connected with the switch circuit board, and the control button is located between the power supply circuit board and the cigarette lighter and between the power supply circuit board and the electric fan, and the control button is used to simultaneously cut off or connect the electrical connection between the power supply assembly and the cigarette lighter and the electrical connection between the power supply assembly and the electric fan.

[0037] The cigarette filter provided above is designed in a barrel shape, and first and second openings are respectively arranged at two ends of the barrel, and the inside of the barrel is divided into a filtering cavity and a combustion cavity. This design allows a smoker to place a cigarette in the combustion cavity and smoke through one end (the first opening) of the barrel without worrying about the smoke being directly discharged into the surrounding environment. The electric fan is located between the second opening and the filter cotton, and its function is to drive the gas (including smoke) in the combustion cavity to flow towards the second opening and be filtered through the filter cotton. This design improves the efficiency of smoke filtering and ensures that the smoke is sufficiently purified before being discharged from the second opening. The introduction of the electric fan also makes the filtering process more active and efficient. BRIEF DESCRIPTION OF DRAWINGS

[0038] Figure 1 A structure perspective view of the cigarette filter when holding a cigarette;

[0039] Figure 2 Structure perspective view of the cigarette filter when holding a cigarette;

[0040] Figure 3 Structure perspective view of the cigarette filter when holding a cigarette;

[0041] Figure 4 Sectional view of the cigarette filter when holding a cigarette; Figure 2

[0042] Figure 5 Structure perspective view of the cigarette filter when holding a cigarette;

[0043] Figure 6 Sectional view of the cigarette filter when holding a cigarette; Figure 5

[0044] Structure perspective view of the cigarette filter when holding a cigarette and hiding part of the cylinder; Figure 7

[0045] Structure perspective view of the cigarette filter when holding a cigarette and hiding part of the cylinder; Figure 8

[0046] Structure perspective view of the cigarette filter when holding a cigarette and hiding part of the cylinder; Figure 9

[0047] Structure perspective view of the cigarette filter when holding a cigarette and hiding part of the cylinder; Figure 10

[0048] Structure perspective view of the cigarette filter when holding a cigarette and hiding part of the cylinder; Figure 11

[0049] Structure perspective view of the inside of the cigarette filter when holding a cigarette; Figure 12

[0050] Structure perspective view of the inside of the cigarette filter when holding a cigarette; Figure 13

[0051] Structure perspective view of the inside of the cigarette filter when holding a cigarette; Figure 14

[0052] Sectional view of the cigarette filter when holding a cigarette; Figure 15 Figure 14 Structure perspective view of the inside of the cigarette filter when holding a cigarette;

[0053] Figure 16 Structure perspective view of the inside of the cigarette filter when holding a cigarette;

[0054] Figure 17 Figure 16 Sectional view of the cigarette filter when holding a cigarette;

[0055] Figure 18 Structure exploded view of the cigarette filter.​​​

[0056] Main component symbol description

[0057] 100, cigarette filter; 1, cylinder; 11, first opening; 12, second opening; 13, connecting piece; 2, filter cotton; 3, electric fan; 4, cigarette holder; 41, magnetic fixing plate; 411, communication hole; 42, magnetic fixing block; 43, plastic piece; 431, clamping hole; 5, cigarette lighter; 6, power supply assembly; 61, power supply circuit board; 62, battery; 63, charging interface; 64, electric suction interface; 7, switch assembly; 71, switch circuit board; 72, control button; 8, cigarette; 9, silica gel heat insulation piece; a, combustion cavity; b, filter cavity; c, fitting area. DETAILED DESCRIPTION

[0058] The embodiments of the present application will be described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of, but not all of the embodiments of the present application.

[0059] It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to the other component or can exist with a middle component. When a component is considered to be "provided on" another component, it can be directly provided on the other component or can exist with a middle component. The terms "top", "bottom", "upper", "lower", "left", "right", "front", "back", and the like used herein are for illustrative purposes only.

[0060] The embodiments of the present application provide a cigarette filter, characterized in that it comprises:

[0061] a cylinder, the cylinder is provided with a first opening and a second opening communicated with the first opening at two ends respectively, the cylinder has a filter cavity communicated with the second opening and a combustion cavity communicated with the filter cavity inside, and the combustion cavity is located between the filter cavity and the first opening;

[0062] filter cotton, the filter cotton is filled in the filter cavity;

[0063] an electric fan, provided in the cylinder, the electric fan is located between the second opening and the filter cotton;

[0064] The cigarette filter is used, one end of the cylinder body provided with the first opening is attached to the mouth to close the direct communication of the first opening with the outside, the cigarette is located in the combustion chamber to burn, the electric fan drives the gas in the combustion chamber to flow to the second opening, and the filter cotton filters the smoke in the gas. The cigarette filter provided above is designed as a cylinder shape, the first opening and the second opening are respectively opened at both ends, and the inside is divided into the filter chamber and the combustion chamber. This design allows the smoker to place the cigarette in the combustion chamber and smoke through one end of the cylinder (the first opening), without worrying about the smoke being directly discharged into the surrounding environment. The electric fan is located between the second opening and the filter cotton, which drives the gas (including smoke) in the combustion chamber to flow to the second opening and is filtered through the filter cotton. This design improves the efficiency of smoke filtering and ensures that the smoke is sufficiently purified before being discharged from the second opening. The introduction of the electric fan also makes the filtering process more active and efficient.

[0065] Some embodiments of the present application will be described in detail below with reference to the accompanying drawings. The following embodiments and features in the embodiments can be combined with each other without conflict.

[0066] Please refer to Figures 1-18 The embodiments of the present application provide a cigarette 8 filter 100, comprising:

[0067] The cylinder body 1 is provided with the first opening 11 and the second opening 12 communicating with the first opening 11 at both ends, and has the filter chamber b communicating with the second opening 12 and the combustion chamber a communicating with the filter chamber b in the inside. The combustion chamber a is located between the filter chamber b and the first opening 11.

[0068] The filter cotton 2 is filled in the filter chamber b.

[0069] The electric fan 3 is arranged in the cylinder body 1, and the electric fan 3 is located between the second opening 12 and the filter cotton 2.

[0070] The cigarette filter 100 is used, one end of the cylinder body 1 provided with the first opening 11 is attached to the mouth to block the direct communication of the first opening 11 with the outside, the cigarette 8 is located in the combustion chamber a to burn, the electric fan 3 drives the gas in the combustion chamber a to flow to the second opening 12, and the filter cotton 2 filters the smoke in the gas.

[0071] Specifically, the cylinder 1 has a first opening 11 and a second opening 12 at both ends, respectively. The cylinder 1 is divided into a filtering cavity b and a combustion cavity a, and the combustion cavity a is located between the filtering cavity b and the first opening 11. The cylinder 1 serves as the main structure of the entire filter, providing the necessary space for the combustion of cigarettes 8 and the filtration of smoke. The first opening 11 is used to fit the smoker's mouth, blocking the direct entry of external air into the combustion cavity a; the second opening 12 is used to discharge filtered gas. Through reasonable chamber separation, it is ensured that the cigarette 8 smoke is fully combusted in the combustion cavity a and then filtered in the filtering cavity b, improving the filtering efficiency. The filter cotton 2 is filled in the filtering cavity b. As a key component for smoke filtration, the filter cotton 2 can effectively adsorb and filter out smoke particles and harmful substances in the gas. The electric fan 3 is located in the cylinder 1 between the second opening 12 and the filter cotton 2. The electric fan 3 drives the gas in the combustion cavity a to flow towards the second opening 12, accelerating the filtration process of the smoke. When using the cigarette 8 filter 100, the smoker fits the end of the cylinder 1 with the first opening 11 to the mouth to block the direct communication between the first opening 11 and the outside. Then, the cigarette 8 is inserted into the combustion cavity a and lit. At this time, the electric fan 3 starts to work, driving the gas (including smoke) in the combustion cavity a to flow towards the second opening 12. In the process of flowing, the smoke is effectively adsorbed and filtered by the filter cotton 2. Finally, the filtered gas is discharged from the second opening 12 to the outside environment.

[0072] In a specific example, a fitting area c is formed between the first opening 11 and the combustion cavity a, and the fitting area c communicates with the first opening 11 and the combustion cavity a at the same time;

[0073] When the human mouth is fitted on the first opening 11, the human mouth is located in the fitting area c.

[0074] Specifically, between the first opening 11 and the combustion cavity a, a special area, the fitting area c, is designed. This fitting area c is structurally connected to both the first opening 11 and the combustion cavity a, forming a transition area. The design of the fitting area c is mainly to provide a comfortable transition area for the smoker when using the filter. When the smoker's mouth is fitted on the first opening 11, their mouth is actually located in this fitting area c. Such a design allows the smoker to inhale more naturally, while ensuring that the gas (including smoke) can smoothly flow from the combustion cavity a through the first opening 11 into the smoker's mouth. The design of the fitting area c also takes into account the comfort and safety of the smoker. Through reasonable size and shape design, the fitting area c can ensure that the smoker's mouth does not feel uncomfortable or tired after a long time of use. At the same time, it can also prevent burns or other safety problems caused by improper smoking.

[0075] In a specific example, the cigarette 8 filter 100 further comprises:

[0076] The mouthpiece frame 4 is detachably connected to the barrel 1 and is located between the combustion cavity a and the adhesion area c. When the cigarette 8 filter 100 is in use, the cigarette 8 is fixed to the mouthpiece frame 4.

[0077] Specifically, the main function of the mouthpiece frame 4 is to fix the cigarette 8. When the cigarette 8 filter 100 is in use, the smoker can place the lit cigarette 8 on the mouthpiece frame 4, so that the burning end of the cigarette 8 extends into the combustion cavity a. The design of the mouthpiece frame 4 ensures that the cigarette 8 can be stably maintained in this position and will not easily move or fall due to the smoker's actions. Since the mouthpiece frame 4 is detachable, it is convenient for cleaning and maintenance. After the cigarette 8 filter 100 has been used for a period of time, some ash or tar may accumulate on the mouthpiece frame 4. At this time, the smoker can easily detach the mouthpiece frame 4 for cleaning to ensure the continuous and efficient operation of the filter.

[0078] In a specific example, the mouthpiece frame 4 comprises:

[0079] A magnetic fixing plate 41 is magnetically attracted to the barrel 1, and a communication hole 411 is formed in the magnetic fixing plate 41, which communicates the combustion cavity a and the adhesion area;

[0080] A magnetic fixing block 42 is magnetically attracted to one side of the magnetic fixing plate 41;

[0081] A plastic part 43 is provided on the side of the magnetic fixing plate 41 with the magnetic fixing block 42, and the magnetic fixing block 42 and the plastic part 43 are in sliding connection;

[0082] A clamping hole 431 is formed in the plastic part 43, one side of which communicates with the combustion cavity a, and the other side communicates with the outside. The clamping hole 431 is located on the sliding path of the magnetic fixing block 42, and the cigarette 8 penetrates through the clamping hole 431.

[0083] In particular, the magnetic fixing plate 41 is magnetically attracted to the barrel 1, used to fix and support other parts of the mouthpiece holder 4. Through magnetic attraction, the installation and disassembly of the mouthpiece holder 4 are facilitated, without the need to use screws or other fasteners, improving the convenience of use. At the same time, the magnetic connection also ensures the stability of the mouthpiece holder 4 in the barrel 1. The communication hole 411 is provided on the magnetic fixing plate 41, used to communicate the combustion chamber a and the fitting area c, allowing the cigarette 8 smoke to flow from the combustion chamber a into the fitting area c, and then be inhaled by the user. The design of the communication hole 411 ensures that the smoke can flow smoothly, while avoiding the accumulation of smoke in the mouthpiece holder 4, improving the smoothness and comfort of smoking. The magnetic fixing block 42 is magnetically attracted to one side of the magnetic fixing plate 41, and is slidingly connected with the plastic piece 43, used to adjust the position of the clamping hole 431, thereby fixing cigarettes 8 of different diameters. Through the sliding connection of the magnetic fixing block 42 and the plastic piece 43, the user can easily adjust the position of the clamping hole 431 to adapt to cigarettes 8 of different sizes, improving the versatility and practicality of the mouthpiece holder 4. The plastic piece 43 is provided on the side of the magnetic fixing plate 41 with the magnetic fixing block 42, and the clamping hole 431 is provided on the plastic piece 43, used to clamp the cigarette 8. The plastic piece 43 has good elasticity and wear resistance, and can tightly clamp the cigarette 8 to prevent the cigarette 8 from slipping or loosening during smoking. At the same time, the material selection of the plastic piece 43 also ensures the comfort and safety of the user's use. The clamping hole 431 is provided on the plastic piece 43, one side of which is in communication with the combustion chamber a, and the other side is in communication with the outside, used to penetrate the cigarette 8. The design of the clamping hole 431 allows the cigarette 8 to be stably placed on the mouthpiece holder 4, while allowing smoke to flow from the combustion chamber a into the user's mouth. The position and size of the clamping hole 431 can be adjusted according to the diameter of the cigarette 8, ensuring the smoothness and stability of smoking.

[0084] Further, the main function of the communication hole 411 is to provide a passage for the combustion chamber a and the first opening 11 to communicate with each other. During smoking, the burning end of the cigarette 8 is located in the combustion chamber a, and the smoke and gas generated need to pass through this passage to enter other parts of the filter, and finally be inhaled by the user. The communication hole 411 is provided on the magnetic fixing plate 41, and the shape of the communication hole 411 can be circular, oval or other suitable shapes. The shape selection mainly depends on the overall design of the cigarette 8 filter 100 and user needs. When the cigarette 8 burns in the combustion chamber a, the smoke and gas generated will pass through the communication hole 411 to enter other parts of the filter. The first opening 11 is an opening on the filter barrel 1 close to the user's mouth, which is also the passage for smoke and gas to finally enter the user's mouth. The presence of the communication hole 411 forms a communication path between the combustion chamber a and the first opening 11.

[0085] In a specific example, the cigarette 8 filter 100 further comprises:

[0086] A connecting member 13 is magnetically attracted to the inner wall of the cylinder 1, and the electric fan 3 is fixed to the connecting member 13, and the electric fan 3 is arranged in the cylinder 1 through the connecting member 13.

[0087] Specifically, the connecting member 13 is an intermediate device for fixing or connecting two or more components together. In this application, the connecting member 13 specifically refers to a component for fixing and mounting the electric fan 3 into the cylinder 1. The connecting member 13 is magnetically attracted to the inner wall of the cylinder 1, which makes the installation and disassembly of the connecting member 13 relatively simple and fast. The characteristics of magnetic attraction also ensure the stability and firmness of the connecting member 13 in the cylinder 1. The electric fan 3 is a key component in the cigarette 8 filter 100, which is used to generate airflow to accelerate the smoke through the filter material. By increasing the contact area and time of smoke with the filter material, the electric fan 3 can improve the filtering efficiency and reduce the emission of harmful substances. The electric fan 3 is firmly fixed to the connecting member 13 by some means such as screws, buckles, etc. This fixing method ensures the stability and reliability of the electric fan 3 in the cylinder 1, preventing it from moving or being damaged during operation.

[0088] In a specific example, the cigarette 8 filter 100 further comprises:

[0089] A power supply component 6 is arranged in the cylinder 1, and the power supply component 6 is electrically connected with the cigarette lighter 5 and the electric fan 3;

[0090] A switch component 7 is arranged in the cylinder 1, and the switch component 7 is located between the power supply component 6 and the cigarette lighter 5 and between the power supply component 6 and the electric fan 3 at the same time;

[0091] The switch component 7 is used to simultaneously cut off or connect the electrical connection between the power supply component 6 and the cigarette lighter 5 and the electrical connection between the power supply component 6 and the electric fan 3.

[0092] Specifically, the power supply assembly 6 is the power source of the cigarette 8 filter 100, usually including a battery 62 or other forms of energy storage devices. Its main function is to provide stable electrical energy to support the normal operation of the lighter 5 and the electric fan 3. When the lighter 5 receives electrical energy from the power supply assembly 6, it will quickly heat up and ignite the cigarette 8. The switch assembly 7 is the key to controlling the electrical connection between the power supply assembly 6 and the lighter 5, the electric fan 3. It allows users to turn on or off the power of these components as needed, thereby controlling their working state. When the electric fan 3 works, it will generate airflow to help the smoke pass through the filter faster and into the user's mouth. The switch assembly 7 can simultaneously cut off or connect the electrical connection between the power supply assembly 6 and the lighter 5 and the electrical connection between the power supply assembly 6 and the electric fan 3. This means that users only need to operate one switch to control the on-off state of the lighter 5 and the electric fan 3 at the same time. The switch assembly 7 and the power supply assembly 6 in it have similar electrical structures in the prior art to achieve similar functions.

[0093] In a specific example, the cylinder 1 is provided with a silica gel heat insulation piece 9, which is located in the combustion cavity a, and the silica gel heat insulation piece 9 is arranged in close contact with the inner wall of the cylinder 1.

[0094] Specifically, the silica gel heat insulation piece 9 is located in the combustion cavity a, which is the main area where the cigarette 8 generates heat. The silica gel heat insulation piece 9 is arranged in close contact with the inner wall of the cylinder 1, ensuring close contact with the inside of the cylinder 1 and forming an effective heat insulation layer. The main function of the silica gel heat insulation piece 9 is to insulate the high temperature in the combustion cavity a, preventing the heat from being directly transmitted to the outside of the cylinder 1, thereby protecting the user from being scalded and prolonging the service life of the cylinder 1. By reducing heat transfer, the silica gel heat insulation piece 9 reduces the risk of safety accidents such as fire or scalding caused by overheating of the cylinder 1. The silica gel heat insulation piece 9 can also serve as a protective layer, which can be removed and cleaned separately when the inside of the cylinder 1 needs to be cleaned, avoiding direct cleaning of the cylinder 1 to damage the electronic components inside the cylinder 1, and simplifying the cleaning process.

[0095] In a specific example, the power supply assembly 6 includes:

[0096] a power supply circuit board 61, which is electrically connected to the lighter 5, the switch assembly 7, and the electric fan 3;

[0097] a charging interface 63 provided on the power supply circuit board 61, and the power supply circuit board 61 is electrically connected to the charging interface 63;

[0098] a battery 62 provided in the cylinder 1, and the battery 62 is electrically connected to the power supply circuit board 61;

[0099] An electrical suction interface 64 is electrically connected to the power supply circuit board 61 and is used to electrically connect the power supply circuit board 61 to the electric fan 3. The power supply circuit board 61 is electrically connected to the electric fan 3 through the electrical suction interface 64.

[0100] Specifically, the power supply circuit board 61 is the core part of the power supply assembly 6, which is responsible for distributing the electrical energy from the battery 62 to various electrical components and ensuring stable transmission of electrical energy. In this design, the power supply circuit board 61 establishes electrical connections with the cigar lighter 5, the switch assembly 7, and the electric fan 3. This means that when the switch assembly 7 is in the on state, the power supply circuit board 61 will transmit the electrical energy from the battery 62 to the cigar lighter 5 and the electric fan 3, allowing them to work normally. The power supply circuit board 61 usually contains multiple circuit elements such as resistors, capacitors, inductors, diodes, transistors, etc., which work together to achieve the distribution, protection, and stable transmission of electrical energy. In addition, the power supply circuit board 61 may also contain some protection circuits such as overcurrent protection, overvoltage protection, short circuit protection, etc. to ensure that the power supply can be quickly cut off in abnormal situations, protecting the safety of the entire system. The charging interface 63 is part of the power supply assembly 6 used to connect external chargers. It is usually located on the power supply circuit board 61 and is electrically connected to the battery 62 through the circuit board. The charging interface 63 is usually designed in a place that can be easily accessed from the outside to facilitate user charging, such as opening a hole on the barrel 1 corresponding to the charging interface 63, so that the user can make the charging plug pass through the hole to enter the barrel 1 and be electrically connected to the charging interface 63. The charging interface 63 usually adopts a standard USB interface or other types of power supply interface to ensure compatibility with mainstream chargers on the market. The battery 62 is the part of the power supply assembly 6 that stores electrical energy. It is usually located inside the barrel 1 and is electrically connected to various electrical components through the power supply circuit board 61. In this design, the battery 62 may use lithium-ion batteries 62, nickel-hydrogen batteries 62, or other types of rechargeable batteries 62. The electrical suction interface 64 is a special electrical connection device that uses electromagnetic suction principle to achieve fast and reliable connection of the circuit. In the cigarette 8 filter 100, the electrical suction interface 64 is used to connect the power supply circuit board 61 to the electric fan 3, ensuring that the electric fan 3 can receive stable power supply. The external power supply is converted by the power supply circuit board 61 into electrical energy suitable for the operation of the electric fan 3. The power supply circuit board 61 transmits the electrical energy to the electrical suction interface 64. The electrical suction interface 64 uses the electromagnetic suction principle to tightly connect the electric fan 3 and the circuit board together. Once the electric fan 3 is stably connected to the power supply circuit board 61 through the electrical suction interface 64, the electric fan 3 can receive stable power supply and start working.

[0101] In a specific example, the switch assembly 7 includes:

[0102] The switch circuit board 71 is electrically connected to the power supply circuit board 61, the cigarette lighter 5, and the electric fan 3.

[0103] The control button 72 is electrically connected to the switch circuit board 71 and is located between the power supply circuit board 61 and the cigarette lighter 5 and between the power supply circuit board 61 and the electric fan 3. The control button 72 is used to simultaneously cut off or connect the electrical connection between the power supply assembly 6 and the cigarette lighter 5 and the electrical connection between the power supply assembly 6 and the electric fan 3.

[0104] Specifically, the switch circuit board 71 is the core part of the switch assembly 7, which is responsible for receiving signals from the control button 72 and controlling the electrical connection state between the power supply circuit board 61 and the cigarette lighter 5 and the electric fan 3 according to these signals. In this design, the switch circuit board 71 is electrically connected to the power supply circuit board 61, the cigarette lighter 5, and the electric fan 3, thereby forming a complete circuit system. The switch circuit board 71 usually contains multiple circuit elements such as relays, transistors, resistors, capacitors, etc., which work together to achieve the switching and control functions of the circuit. When the control button 72 is pressed, the corresponding circuit on the switch circuit board 71 will be activated, thereby changing the electrical connection state between the power supply circuit board 61 and the cigarette lighter 5 and the electric fan 3. The control button 72 is the interface for users to interact with the switch assembly 7. It is usually located on the switch circuit board 71 and indirectly electrically connected to the power supply circuit board 61, the cigarette lighter 5, and the electric fan 3 through the circuit board. In this design, the control button 72 is designed to be located between the power supply circuit board 61 and the cigarette lighter 5 and between the power supply circuit board 61 and the electric fan 3, which means that it can not only control the power supply of the cigarette lighter 5 but also control the power supply of the electric fan 3. When the user presses the button, it will trigger the corresponding circuit on the switch circuit board 71, thereby changing the electrical connection state between the power supply circuit board 61 and the electric components. When the user releases the button, the circuit on the switch circuit board 71 will return to the initial state, waiting for the next operation. The control button 72 can simultaneously cut off or connect the electrical connection between the power supply assembly 6 and the cigarette lighter 5 and the electrical connection between the power supply assembly 6 and the electric fan 3.

[0105] The above is only an embodiment of the present application, and it should be noted that those skilled in the art can make improvements without departing from the inventive concept, which are within the scope of protection of the present application.

Claims

1. A cigarette filter, characterized by, The cigarette filter comprises: a cylinder body, a first opening and a second opening communicated with the first opening are arranged at two ends of the cylinder body respectively, a filtering cavity communicated with the second opening and a combustion cavity communicated with the filtering cavity are arranged in the cylinder body, and the combustion cavity is located between the filtering cavity and the first opening; filtering cotton filled in the filtering cavity; an electric fan arranged in the cylinder body, and the electric fan is located between the second opening and the filtering cotton; when the cigarette filter is used, one end of the cylinder body provided with the first opening is attached to a human mouth to block the direct communication between the first opening and the outside, a cigarette is combusted in the combustion cavity, the electric fan drives the gas in the combustion cavity to flow to the second opening, and the filtering cotton filters the smoke in the gas.

2. A cigarette filter according to claim 1, characterised in that, a fitting area is formed between the first opening and the combustion cavity, and the fitting area is communicated with the first opening and the combustion cavity simultaneously; when the human mouth is attached to the first opening, the human mouth is located in the fitting area.

3. A cigarette filter according to claim 2, characterised in that, The cigarette filter further comprises: a cigarette holder detachably connected in the cylinder body, and the cigarette holder is located between the combustion cavity and the fitting area, and the cigarette is fixed on the cigarette holder when the cigarette filter is used.

4. A cigarette filter according to claim 3, characterised in that, The cigarette holder comprises: a magnetic fixing plate magnetically attached in the cylinder body, a communication hole is arranged on the magnetic fixing plate, and the communication hole is communicated with the combustion cavity and the fitting area; a magnetic fixing block magnetically attached on one side of the magnetic fixing plate; a plastic part arranged on one side of the magnetic fixing plate provided with the magnetic fixing block, and the magnetic fixing block and the plastic part are slidingly connected; a clamping hole is arranged on the plastic part, one side of the clamping hole is communicated with the combustion cavity, the other side of the clamping hole is communicated with the outside, the clamping hole is located on the sliding path of the magnetic fixing block, and a cigarette penetrates through the clamping hole.

5. A cigarette filter according to claim 4, characterised in that, The cigarette filter further comprises: a connecting piece magnetically attached in the cylinder body, the electric fan is fixed on the connecting piece, and the electric fan is arranged in the cylinder body through the connecting piece.

6. The cigarette filter of claim 3, wherein The cigarette filter further comprises: a cigarette lighter arranged in the cylinder body, and the cigarette lighter is located in the combustion cavity.

7. A cigarette filter according to claim 6, characterised in that, The cigarette filter further comprises: a power supply assembly arranged in the cylinder body, the power supply assembly is electrically connected with the cigarette lighter and the electric fan; a switch assembly arranged in the cylinder body, and the switch assembly is located between the power supply assembly and the cigarette lighter and between the power supply assembly and the electric fan simultaneously; the switch assembly is used to simultaneously cut off or connect the electrical connection between the power supply assembly and the cigarette lighter and the electrical connection between the power supply assembly and the electric fan.

8. The cigarette filter of claim 4, wherein, A silica gel heat insulation piece is arranged in the cylinder body, the silica gel heat insulation piece is located in the combustion cavity, and the silica gel heat insulation piece is attached to the inner wall of the cylinder body.

9. The cigarette filter of claim 7, wherein, The power supply assembly comprises: a power supply circuit board electrically connected with the cigarette lighter, the switch assembly and the electric fan simultaneously; a charging interface arranged on the power supply circuit board, and the power supply circuit board is electrically connected with the charging interface. a battery, which is arranged in the barrel, and is electrically connected with the power supply circuit board; an electric suction interface, which is electrically connected with the power supply circuit board, and is electrically connected with the electric fan, so that the power supply circuit board is electrically connected with the electric fan through the electric suction interface.

10. A cigarette filter according to claim 9, characterised in that, The switch assembly comprises: a switch circuit board, which is electrically connected with the power supply circuit board, the cigarette lighter, and the electric fan; a control button, which is electrically connected with the switch circuit board, is located between the power supply circuit board and the cigarette lighter, and between the power supply circuit board and the electric fan, and is used for cutting off or connecting the electric connection between the power supply assembly and the cigarette lighter and the electric connection between the power supply assembly and the electric fan.

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