Filter Assembly and Cartridge

Abstract

A filter assembly and a cartridge are provided. The filter assembly (2) includes a filter (70) and a functional material (3). A storage space (71) is provided in the radial direction of the filter (70). The functional material (3) is fixed in the storage space (71), and the filter (70) contacts a part of the outer surface of the functional material (3). First, the cooling function can be improved by adding the functional material (3), or the filter (70) can be given functions other than filtration, such as flavoring, health, and treatment, thereby increasing the variety of functions of the filter assembly (2) and improving the texture and vaping effect of the user. Second, the functional material (3) is fixed in the storage space (71) opened in the filter (70) and contacted with the filter (70), thereby better fixing the functional material (3) in the filter (70) and preventing the functional material (3) from moving in the filter (70). In addition, since the user comes into direct contact with the filter (70) when inhaling, placing the functional material (3) inside the filter (70) maximizes the suction force of the filter (70), thereby further improving the performance and effectiveness of the functional material (3). In addition, fixing the filter (70) inside the accommodation space (71) opened in the radial direction of the filter (70) can reduce the difficulty of assembling the filter (70) and the functional material (3).

Description

[Technical field]

[0001] REFERENCE TO RELATED APPLICATIONS This application claims priority to Chinese Patent Application No. 2022202490170, filed on January 30, 2022, for an invention entitled "Filter Assembly and Cartridge," the contents of which are incorporated herein by reference.

[0002] FIELD OF THE DISCLOSURE This application is in the cartridge art, and more particularly, relates to filter assemblies and cartridges. [Background technology]

[0003] Currently, more and more users are using cartridges instead of traditional cigarettes to reduce the damage that traditional cigarettes cause to the user's body. Existing cartridges usually include a filter assembly, but currently the function of the filter assembly cannot meet the increasing needs of users. Summary of the Invention

[0004] In view of this, a first aspect of the present application provides a filter assembly, the filter assembly including a filter and a functional material, a housing space being provided in a radial direction of the filter, the functional material being fixed within the housing space, and the filter being in contact with a portion of an outer surface of the functional material.

[0005] In a second aspect of the present application, there is provided a cartridge comprising a tube, a sealant, a smoke generating material, a cooling material, and a filter assembly as provided in the first aspect. The tube is provided with a storage space. The sealant is sealed to one end of the tube and encloses the storage space. The smoke generating material is provided within the storage space and proximate to the sealant. The cooling material is provided within the storage space and proximate to the smoke generating material. The filter assembly is provided within the storage space and proximate to the cooling material. [Brief description of the drawings]

[0006] In order to more clearly describe the technical solutions in the embodiments of the present application, the following describes the drawings that need to be used in the embodiments of the present application. [Figure 1] 1 is a schematic diagram showing a three-dimensional structure of a filter assembly according to an embodiment of the present application. [Diagram 2] FIG. 2 is an exploded view of FIG. [Diagram 3] 2 is a schematic diagram of a cross section taken along the direction AA in FIG. 1. [Figure 4] FIG. 1 is a schematic configuration diagram of a filter according to an embodiment of the present application. [Diagram 5] 1 is a schematic diagram of a functional material according to an embodiment of the present application; [Figure 6] FIG. 2 is a schematic diagram of a functional material according to another embodiment of the present application. [Figure 7] FIG. 13 is a schematic diagram of a filter assembly according to another embodiment of the present application. [Figure 8] FIG. 8 is an exploded view of FIG. [Figure 9] FIG. 2 is a schematic configuration diagram of a cartridge according to an embodiment of the present application. [Figure 10] FIG. 2 is a schematic configuration diagram of a tube according to an embodiment of the present application. [Figure 11] FIG. 2 is a schematic diagram of a coolant according to an embodiment of the present application. [Figure 12] FIG. 2 is a schematic diagram showing a partial structure of a cartridge according to an embodiment of the present application. [Figure 13] FIG. 13 is a schematic configuration diagram of a cartridge according to another embodiment of the present application. [Figure 14] FIG. 13 is a schematic diagram showing a portion of a cartridge according to another embodiment of the present application. [Figure 15] FIG. 13 is a schematic configuration diagram of a cartridge according to still another embodiment of the present application. [Figure 16] FIG. 2 is an exploded view of a cartridge according to an embodiment of the present application. [Figure 17] FIG. 13 is a schematic configuration diagram of a cartridge according to still another embodiment of the present application. [Figure 18]FIG. 2 is a schematic cross-sectional view along a radial direction of a cartridge according to an embodiment of the present application. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0007] The following is a preferred embodiment of the present application. However, those skilled in the art may make some improvements and modifications without departing from the principles of the present application, and these improvements and modifications are also considered to be within the scope of protection of the present application.

[0008] An embodiment of the present application provides a filter assembly. The filter assembly includes a filter and a functional material. An accommodation space is provided in a radial direction of the filter. The functional material is fixed in the accommodation space, and the filter contacts a part of an outer surface of the functional material.

[0009] The filter has a first surface and a second surface arranged back to back in the radial direction, and the receiving space passes through the first surface and the second surface.

[0010] The functional material abuts against a side wall of the storage space.

[0011] The filter and the functional material form an interference fit, and the ratio of the size of the opening of the receiving space to the size of the functional material is (0.9-0.95:1) in the axial direction of the filter.

[0012] The side wall has a groove, and a portion of the functional material is disposed within the groove.

[0013] In the axial direction of the filter, the ratio of the size of the opening of the accommodation space to the size of the filter is 1:(2.8 to 4).

[0014] The axial length of the filter is 8 to 10 mm, and the radial diameter of the filter is 6.5 to 7 mm.

[0015] The functional material includes a housing and a liquid or gaseous functional part disposed within the housing, the housing abutting against the filter, and the housing capable of bursting when subjected to a predetermined external force along the radial direction of the filter.

[0016] When the housing is ruptured, the liquid feature can be adsorbed onto the filter.

[0017] The shape of the functional material is a sphere, an ellipsoid, or a cylinder.

[0018] When the functional material has a spherical shape, the diameter of the functional material is 3 to 4 mm, and when the functional material has an ellipsoidal or cylindrical shape, the outer diameter of the functional material in the radial direction of the filter is 3 to 4 mm, and the length of the functional material in the axial direction of the filter is 4 to 7 mm.

[0019] An embodiment of the present application provides a cartridge. The cartridge includes a tube, a sealant, a smoke generating material, a cooling material, and a filter assembly as provided in the above embodiment. The tube is provided with a storage space. The sealant is sealed to one end of the tube and encloses the storage space. The smoke generating material is provided within the storage space and proximate to the sealant. The cooling material is provided within the storage space and proximate to the smoke generating material. The filter assembly is provided within the storage space and proximate to the cooling material.

[0020] The cooling material has a first through hole penetrating a first end and a second end arranged back to back, and the cartridge further includes a first vent seal portion and a second vent seal portion, the first vent seal portion is fixed to the first end and covers the first through hole, the second vent seal portion is fixed to the second end and covers the second through hole, the first vent seal portion is adjacent to the smoke generating material, and the second vent seal portion is adjacent to the filter.

[0021] The first vent seal portion has at least one first hole and / or the second vent portion has at least one second hole.

[0022] The tube has an avoidance marking area corresponding to the receiving space.

[0023] The tube further has two pressable marking areas arranged back to back, and a line connecting the centers of the two pressable marking areas is perpendicular to the extension direction of the receiving space.

[0024] The tube has a length of 42 to 46 mm, an outer diameter of 6.9 to 7.1 mm, and an inner diameter of 6.4 to 6.65 mm.

[0025] The coolant has a length of 16 to 23 mm and an outer diameter of 6 to 6.6 mm.

[0026] The cartridge further includes a decorative material sleeved onto the tube and the sealant, the decorative material having a first end face and a second end face arranged back to back to each other, the first end face being flush with a surface of the sealant remote from the tube, and the second end face being flush with a surface of the filter remote from the sealant.

[0027] In the axial direction of the tube, the length of the decorative material is 42 to 46 mm, and in the radial direction of the tube, the outer diameter of the decorative material is 7.15 to 7.3 mm.

[0028] Before introducing the technical solution of this application, the technical problems in the related art will be introduced in detail.

[0029] Traditional cigarettes contain large amounts of tar and nicotine, which seriously affect the health of users. In response to the increasing health needs of users, the cartridge 1 has been introduced. The smoke generating material 60 of the cartridge 1 usually does not contain tobacco components or contains small amounts of tobacco components. In addition, the cartridge 1 is usually a heat-and-burn cartridge 1 that heats but does not burn the smoke generating material 60. This prevents the production of harmful substances such as tar and nicotine, does not pollute the surrounding environment, does not affect the surrounding people, and protects the health of smokers and those around them.

[0030] Due to these differences, currently, an increasing number of users are using cartridges 1 instead of traditional cigarettes to reduce the damage that traditional cigarettes cause to the user's body. The filter assembly 2 in the cartridge 1 usually serves to filter out harmful substances and lower the temperature of the smoke, preventing the user's oral cavity from being burned when the smoke is too hot. However, currently, the function of the filter assembly 2 cannot meet the increasing needs of users. For example, the taste of the current cartridge 1 is usually determined by the original smell of the smoke generating material 60. Alternatively, the taste of the cartridge 1 is obtained by adding an edible essence flavor to the smoke generating material 60. However, there are certain limitations on the aroma, duration and richness of the smoke generating material 60 due to factors such as the volume and capacity of the smoke generating material 60.

[0031] In order to solve the above problems, the present application provides a filter assembly 2. Please also refer to Figs. 1 to 6. Fig. 1 is a schematic diagram showing a three-dimensional structure of a filter assembly in one embodiment of the present application. Fig. 2 is an exploded view of Fig. 1. Fig. 3 is a schematic diagram of a cross section along the AA direction in Fig. 1. Fig. 4 is a schematic diagram of a filter in one embodiment of the present application. Fig. 5 is a schematic diagram of a functional material in one embodiment of the present application. Fig. 6 is a schematic diagram of a functional material in another embodiment of the present application.

[0032] This embodiment provides a filter assembly 2. The filter assembly 2 includes a filter 70 and a functional material 30. An accommodation space 71 is provided in the radial direction of the filter 70. The functional material 30 is fixed within the accommodation space 71, and the filter 70 contacts a part of the outer surface of the functional material 30.

[0033] The filter assembly 2 is mainly used to filter harmful substances in smoke, and can also further cool the smoke to avoid burns to the user's mouth. The filter assembly 2 provided in this embodiment generally includes a filter 70 and a functional material 30. Each part and the combination between each part will be described in detail below.

[0034] The filter 70 is a structure that plays a major role in the filter assembly 2. The filter 70 can be used to filter harmful substances and further reduce the temperature of the smoke. Optionally, the material of the filter 70 includes, but is not limited to, food-grade polylactic acid (PLA), cellulose acetate, etc. Further optionally, when the material of the filter 70 is polylactic acid, a pultrusion process can be adopted. Optionally, the axial length L5 of the filter 70 is 8-10 mm. The radial diameter d5 of the filter 70 is 6.5-7 mm.

[0035] A storage space 71 for storing the following functional material 30 can be opened in the radial direction of the filter 70. The storage space 71 may be a groove or a hole, but is not limited to this in the present embodiment. When the storage space 71 is a hole, the filter 70 has a first surface 72 and a second surface 73 arranged back to back in the radial direction, and the storage space 71 penetrates the first surface 72 and the second surface 73. This can reduce the difficulty of opening the storage space 71. When the storage space 71 is a hole, the storage space 71 penetrates only the first surface 72 or the second surface 73, which can prevent the functional material 30 from falling from the other surface. Note that this embodiment does not limit the shape of the storage space 71. In this embodiment, it is simply explained that the storage space 71 penetrates the first surface 72 and the second surface 73 at the same time.

[0036] The functional material 30 is for realizing various functions, in other words, various functions can be realized by using the shape, structure, material, and other elements of the functional material 30. For example, if the material of the functional material 30 is a heat absorbing material, such as metal, plastic, etc., when smoke is transmitted to the functional material 30, the heat absorbing material can absorb a large amount of heat, and the cooling effect can be further improved. If the functional material 30 has various flavors, the functional material 30 can be used to change the taste of the smoke, and the quality of the smoke as well as the saturation, diversity, and persistence of the taste can be improved. If the functional material 30 has various Chinese or Western medicine ingredients, the functional material 30 can be used to make the smoke contain various Chinese or Western medicine ingredients, and when the user inhales, the various Chinese or Western medicine ingredients can also be inhaled into the mouth, so that the functional material 30 can have health and treatment functions.

[0037] In this embodiment, the functional material 30 is merely exemplified as a fragrance-enhancing material that changes the smell of smoke. Optionally, the functional material 30 includes a housing 31 and a liquid or gaseous functional part 32 provided in the housing 31, and the housing 31 abuts against the filter 70. The housing 31 can burst when it receives a preset external force along the radial direction of the filter 70. The functional material 30 includes a housing 31 and a functional part 32 provided in the housing 31, and the functional part 32 may be liquid or gaseous. The housing 31 abuts against the filter 70 and is fixed. Also, the housing 31 can burst when it receives a preset external force along the radial direction of the filter 70. For example, when a user pinches the filter 70 with his or her hands along the radial direction of the filter 70, if the pressing force is greater than the preset external force, the housing 31 can be crushed. The housing 31 is crushed, burst, or has a hole 83 opened, exposing the functional part 32 inside. In this case, when the smoke passes through, the functional part 32 can move with the smoke, and the functional part 32 can also be moved by the user's inhalation force, and the functional part 32 and the smoke can finally be inhaled into the user's mouth. The use of the functional material 30 can improve the taste and smell experience of the user. Optionally, the functional material 30 can be molded by processes such as extrusion blowing and canning.

[0038] Optionally, when the housing 31 is ruptured, the liquid functional part 32 can be adsorbed on the filter 70. During the process of smoking, the functional part 32 can be easily drawn into the mouth when the smoke passes through, and the aroma can be more sustainedly released from the filter cotton, improving the user's experience. In addition, the liquid or gas functional part 32 can also have a certain cooling effect.

[0039] Optionally, functional portion 32 contains edible-grade flavorings, including, but not limited to, one or more flavor formulations of fruit and vegetable flavors, such as blueberry, apple, watermelon, mango, grape, etc.

[0040] Alternatively, the shape of the functional material 30 may be a sphere, an ellipsoid, or a cylinder. As shown in FIG. 5, when the shape of the functional material 30 is a sphere, the diameter d3 of the functional material 30 is 3 to 4 mm. As shown in FIG. 6, when the shape of the functional material 30 is an ellipsoid or a cylinder, the outer diameter d3 of the functional material 30 in the radial direction D2 of the filter 70 is 3 to 4 mm, and the length L3 of the functional material 30 in the axial direction D1 of the filter 70 is 4 to 7 mm. In addition, all axial directions described below are represented by D1, and all radial directions are represented by D2. In addition, since the filter 70 has a thickness, when the storage space 71 is opened in the filter 70, the filter 70 has an outer peripheral side wall and an inner peripheral side wall. The outer peripheral side wall has an exterior surface of the filter 70, and the inner peripheral side wall forms the storage space 71. Therefore, the filter 70 has two sizes in the radial direction, one being the size between the opposing sides of the outer peripheral side wall (i.e., the outer diameter), and the other being the size between the opposing sides of the inner peripheral side wall (i.e., the inner diameter). In other words, the size between the opposing sides of the outer circumferential wall of the filter 70 is 3 to 4 mm in the radial direction. The length, outer diameter, inner diameter, axial direction, and radial direction mentioned below in this application can be understood in the same way, and therefore will not be described in this application.

[0041] The filter assembly 2 provided in this embodiment can increase the cooling function by adding the functional material 30, or can increase the variety of functions of the filter assembly 2 by providing the filter 70 with functions other than filtration, such as flavor enhancement, health care, and treatment functions, thereby improving the texture and vaping effect for the user.

[0042] Next, the functional material 30 is fixed in the accommodation space 71 opened in the filter 70 and brought into contact with the filter 70, thereby better fixing the functional material 30 in the filter 70 and preventing the functional material 30 from moving within the filter 70. In addition, since the functional material 30 comes into direct contact with the filter 70 when the user inhales, by placing the functional material 30 inside the filter 70, the suction force of the filter 70 is maximized, and the performance and effect of the functional material 30 can be further improved.

[0043] Furthermore, by fixing the filter 70 in the accommodation space 71 opened in the radial direction of the filter 70, the difficulty in assembling the filter 70 and the functional material 30 can be reduced.

[0044] 3, in this embodiment, the functional material 30 abuts against the side wall of the accommodation space 71. In this embodiment, the functional material 30 can be fixed to the filter 70 by abutting the functional material 30 against the side wall of the accommodation space 71. Of course, in another embodiment, the functional material 30 can also be bonded to the side wall of the accommodation space 71.

[0045] 4 and 5 again, in this embodiment, the filter 70 and the functional material 30 form an interference fit, and the ratio of the size d0 of the opening of the accommodation space 71 to the size of the functional material 30 in the axial direction of the filter 70 is (0.9 to 0.95):1. This ensures that the interference between the filter 70 and the functional material 30 is appropriately maintained, and that the functional material 30 is fixed to the filter 70 within the above range and that the functional material 30 is not damaged. If the ratio of the size of the opening of the accommodation space 71 to the size of the functional material 30 in the axial direction of the filter 70 is too small, for example less than 0.9:1, the accommodation space 71 is too small and the inner diameter is too small, which may cause damage to the functional material 30. If the ratio of the size of the opening of the accommodation space 71 to the size of the functional material 30 in the axial direction of the filter 70 is too large, for example greater than 0.95:1, the functional material 30 cannot be incorporated into the filter 70 by interference fit.

[0046] 7 and 8, Fig. 7 is a schematic diagram of a filter assembly in another embodiment of the present application. Fig. 8 is an exploded view of Fig. 7. In this embodiment, a groove 74 is formed in the side wall, and a part of the functional material 30 is provided in the groove 74.

[0047] In this embodiment, a groove 74 is provided in the side wall based on an interference fit, and a part of the functional material 30 is provided in the groove 74. By relieving the pressing force due to the interference fit through the groove 74, it is possible to prevent the filter from being pressed and deformed, which in turn causes other members such as the tube body 40 to be deformed, and ultimately causes the shape to become non-uniform. For example, it is possible to avoid a problem in which the positions corresponding to the functional material among the opposing ends of the filter 70 in the axial direction become convex. In addition, the presence of the first groove 74 can further limit the position of the functional material 30 in the filter 70, thereby improving the positional accuracy of the functional material 30 in the filter 70.

[0048] Of course, in another embodiment, the functional material 30 may be secured to the filter 70 by adhering the functional material 30 to the sidewalls of the filter 70 using adhesive or other methods.

[0049] Please refer to Fig. 4 again. In this embodiment, the ratio of the size d0 of the opening of the accommodation space 71 to the size L5 of the filter 70 in the axial direction of the filter 70 is 1:(2.8 to 4).

[0050] In the axial direction of the filter 70, the ratio of the size of the opening of the accommodation space 71 to the length of the filter 70 is 1: (2.8 to 4). This ensures that the functional material 30 does not fall out of the accommodation space 71. In addition, the filter 70 is prevented from being pressed in the longitudinal direction and deformed, resulting in both end faces becoming uneven. If the size of the opening of the accommodation space 71 is too large, not only will the functional material 30 not be able to be fixed, but the filter 70 itself will be too small, resulting in a decrease in function. In other words, the longitudinal size of the filter 70 will be reduced and the deformation resistance will be weakened, so that when the functional material 30 is pressed in, the filter 70 will be pressed in the longitudinal direction, causing both end faces of the filter 70 to deform and become convex toward the outside, which may affect the appearance and performance. If the size of the opening of the accommodation space 71 is too small, the pressing force and repulsive force that the functional material 30 receives after being attached to the accommodation space 71 will be too large, and the functional material 30 may be damaged.

[0051] Please refer to Figs. 9 to 11. Fig. 9 is a schematic diagram of a cartridge according to an embodiment of the present application. Fig. 10 is a schematic diagram of a tube according to an embodiment of the present application. Fig. 11 is a schematic diagram of a cooling material according to an embodiment of the present application. This embodiment further provides a cartridge 1. The cartridge 1 includes a tube 40, a sealant 50, a smoke generating material 60, a cooling material 10, and a filter assembly 2 according to the above embodiment of the present application. The tube 40 is provided with a storage space 41. The sealant 50 is sealed to one end of the tube 40 and shields the storage space 41. The smoke generating material 60 is provided in the storage space 41 and is adjacent to the sealant 50. The cooling material 10 is provided in the storage space 41 and is adjacent to the smoke generating material 60. The filter assembly 2 is provided in the storage space 41 and is adjacent to the cooling material 10.

[0052] In this embodiment, in addition to the filter assembly 2, a cartridge 1 including the filter assembly 2 is further provided. Optionally, the cartridge 1 of this embodiment is a cartridge 1 that does not burn even when heated. The cartridge 1 further includes a tube 40, a sealing material 50, a smoke generating material 60, and a cooling material 10. In this embodiment, each member will be described in detail in order.

[0053] The tube 40 is a main component of the cartridge 1, and is used to mount, fix and place each component. The tube 40 has a storage space 41. The storage space 41 can be formed by penetrating both ends of the tubes 40 that are arranged back to back. Alternatively, the storage space 41 can be formed by penetrating a solid tube 40, the tube 40 having the storage space 41 can be injection molded by injection molding, or the tube 40 having the storage space 41 can be formed by winding a material having a certain thickness.

[0054] Optionally, the material of the tube 40 includes food-grade materials. Optionally, the food-grade materials include, but are not limited to, one or more of white paperboard and kraft paper. Specifically, the food-grade materials have a weight of 50 to 200 g / m 2 White paperboard, 50~200g / m 2Kraft paper and the like.

[0055] Optionally, the tube 40 has a length L4 between 42 and 46 mm, an outer diameter d4 between 6.9 and 7.1 mm, and an inner diameter d4' between 6.4 and 6.65 mm.

[0056] The sealant 50 is a member that seals one of the open ends of the storage space 41 of the tube 40. That is, the sealant 50 seals the end face of the tube 40 and also blocks the storage space 41, thereby preventing the subsequent smoke generating material 60 from falling off and also preventing moisture from entering the smoke generating material 60 when the smoke generating material 60 is subjected to a collision from an external force.

[0057] Optionally, the material of the sealing material 50 includes an edible grade material. Optionally, the edible grade material includes, but is not limited to, one or more of silk paper, highly breathable paper, and butter paper. Specifically, the edible grade material has a density of 10 to 50 g / m 2 Silk paper, 10~50g / m 2 Highly breathable paper, 45~105g / m 2 Butter paper and the like.

[0058] Optionally, the sealant 50 is circular and has a diameter of 6.9 to 7.2 mm, can completely seal the receiving space 41, and is sealed to the end surface of the tube body 40.

[0059] Alternatively, the sealant 50 material may first be die punched, tool punched, or laser cut to obtain the required shape and then sealed to the tube 40. Alternatively, the sealant 50 is first used to seal the tube 40 and then die punched, tool punched, or laser cut to obtain the required shape.

[0060] The smoke material 60 is a main component of the cartridge 1, and the smoke material 60 is heated to produce smoke for inhalation by the user. Optionally, the smoke material 60 is made from various herbaceous plants. Optionally, the smoke material 60 is in the form of a sheet or particles.

[0061] The smoke generating material 60 is provided in the storage space 41 and is adjacent to the sealing material 50, i.e., can abut against the sealing material 50. Optionally, in the axial direction of the tube 40, the length of the smoke generating material 60 is 13-18 mm. In the radial direction, the diameter of the smoke generating material 60 is 6.4-6.6 mm.

[0062] The coolant 10 is a main component that exerts a cooling function in the filter assembly 2. The coolant 10 has a structure having a first through hole 100. Specifically, the first through hole 100 can be formed by penetrating a first end surface 91 and a second end surface 92 that are provided back to back with each other, and this can reduce the temperature of smoke when the smoke passes through the first through hole 100. Alternatively, the first through hole 100 can be formed by penetrating a solid coolant 10, the coolant 10 having the first through hole 100 can be injection molded by injection molding, or the coolant 10 having the first through hole 100 can be formed by rolling up a material having a certain thickness.

[0063] Optionally, the material of the cooling material 10 includes silica gel, food-grade material, etc. The above-mentioned "food-grade material" means a material that generates little or no toxic or harmful substances that affect the human body or the environment when heated. Further, optional food-grade materials include one or more of white cardboard, kraft paper, and polylactic acid (PLA), but are not limited thereto. Specifically, the cooling material 10 has a thickness of 50 to 200 g / m 2 White paperboard, 50~200g / m 2 Kraft paper and the like.

[0064] Selectably, the coolant 10 has a length L1 of 16 to 23 mm and an outer diameter d1 of 6 to 6.6 mm. Designing the size of the coolant 10 within the above range not only improves the cooling performance, but also ensures the smoke concentration and the inhalation resistance when inhaling. If the outer diameter of the cooling tube is too small, the resistance to inhaling the smoke becomes too large. If the outer diameter of the cooling tube is too large, the smoke concentration in the cooling tube becomes too small, which affects the mouthfeel when inhaling the smoke. Therefore, if the outer diameter of the cooling tube is 6 to 6.6 mm, it is possible to ensure a sufficient smoke concentration in the coolant 10 while maintaining a small inhalation resistance. Inhalation resistance refers to the resistance when inhaling. Inhalation resistance is the resistance received when inhaling smoke into the cooling tube and when inhaling smoke from the coolant 10.

[0065] Optionally, when the tube 40 and the cooling material 10 are wound and formed, flat winding or spiral winding can be adopted. The tube 40 and the cooling material 10 may be wound in the same way or in different ways. When flat winding is adopted, 4 to 5 sheets of food-grade paper each having a single thickness and weighing 50 to 200 g are stacked, and only the joint of the last layer is fixed by applying an adhesive with a width of 1 mm to 2 mm, thereby reducing the difficulty of winding. When spiral winding is adopted, three sheets of food-grade paper are stacked, and the thickness ratio from one side to the other side is 8:10:6, and the stacking and joining can be performed at an angle of 135 degrees ± 15 degrees to be spirally wound, and adhesive is applied between the layers, so that the three sheets are firmly bonded, and after the core is removed, the spirally wound paper tube has excellent stability, strength and roundness.

[0066] The cartridge 1 according to this embodiment employs the filter assembly 2 according to the above embodiment of the present application, thereby improving the cooling function of the cartridge 1, or providing another function to the cartridge 1, thereby enriching the variety of functions of the cartridge 1. In addition, the difficulty of assembly can be reduced, and the use effect of the functional material can be improved. Furthermore, by providing the functional material 30 inside the filter 70, when a user uses the functional material 30 in combination with a smoking tool, the functional material 30 is always exposed from the smoking tool, and the user can press the functional material 30 at any time.

[0067] Referring to Fig. 12, Fig. 12 is a schematic diagram showing a partial structure of a cartridge in one embodiment of the present application. In this embodiment, the coolant 10 has a first through hole 100 penetrating a first end 101 and a second end 102 provided back to back, the cartridge 1 further includes a first ventilation seal portion 81 and a second ventilation seal portion 82, the first ventilation seal portion 81 is fixed to the first end 101 and covers the first through hole 100, the second ventilation seal portion 82 is fixed to the second end 102 and covers the second through hole, the first ventilation seal portion 81 is adjacent to the smoke generating material 60, and the second ventilation seal portion 82 is adjacent to the filter.

[0068] The cartridge 1 may further include a first ventilation seal portion 81 fixed to the second end 102. When the first ventilation seal portion 81 blocks the first through-hole 100, it can function as a seal. Regarding the ventilation function, the first ventilation seal portion 81 can have a ventilation function depending on the material of the first ventilation seal portion 81, or the first ventilation seal portion 81 can have a ventilation function by opening at least one hole 83 in the first ventilation seal portion 81. This allows smoke from the smoke generating material 60 to enter the coolant 10 through the first ventilation seal portion 81.

[0069] Optionally, the material of the first ventilation seal portion 81 includes an edible grade material. Further optional, the edible grade material includes, but is not limited to, one or more of silk paper, highly breathable paper, and butter paper. Specifically, the edible grade material has a density of 10 to 50 g / m 2 Silk paper, 10~50g / m 2 Highly breathable paper, 45~105g / m 2 Butter paper and the like.

[0070] Optionally, the first ventilation seal portion 81 is circular, has a diameter of 6 to 6.6 mm, can completely seal the storage space 41, and is bonded to the end surface of the pipe body 40.

[0071] Alternatively, the material of the first vent seal portion 81 may first be die punched, tool punched or laser cut to obtain the required shape and then bonded to the coolant 10. Alternatively, the first vent seal portion 81 is first bonded to the coolant 10 and then die punched, tool punched or laser cut to obtain the required shape.

[0072] The cartridge 1 may further include a second ventilation seal portion 82 fixed to the first end 101. When the second ventilation seal portion 82 blocks the first through-hole 100, the second ventilation seal portion 82 may function as a seal. Regarding the ventilation function, the second ventilation seal portion 82 may have a ventilation function depending on the material of the second ventilation seal portion 82, or the second ventilation seal portion 82 may have a ventilation function by opening at least one hole 83 in the second ventilation seal portion 82. This allows smoke from the smoke generating material 60 to enter the coolant 10 through the second ventilation seal portion 82.

[0073] Optionally, the material of the second breathable seal portion 82 includes an edible grade material. Optionally, the edible grade material further includes, but is not limited to, one or more of silk paper, highly breathable paper, and butter paper. Specifically, the edible grade material has a density of 10 to 50 g / m 2 Silk paper, 10~50g / m 2 Highly breathable paper, 45~105g / m 2 Butter paper and the like.

[0074] Optionally, the second ventilation seal portion 82 is circular, has a diameter of 6 to 6.6 mm, can completely seal the storage space 41, and is bonded to the end surface of the pipe body 40.

[0075] Optionally, the second vent seal portion 82 may first be die punched, tool punched, or laser cut to obtain the required shape and then bonded to the coolant 10. Alternatively, the second vent seal portion 82 may first be bonded to the coolant 10 and then die punched, tool punched, or laser cut to obtain the required shape.

[0076] The presence of the first ventilation seal part 81 and the second ventilation seal part 82 increases the amount of smoke accumulated in the coolant 10, eliminates the need to consider the forward and reverse directions during assembly, reduces the difficulty of assembly, and suppresses the intake resistance. In addition, it also prevents the filter 70 from entering the coolant 10 during subsequent assembly.

[0077] 13 to 16, FIG. 13 is a schematic diagram of a cartridge according to another embodiment of the present application. FIG. 14 is a schematic diagram showing a part of a cartridge according to another embodiment of the present application. FIG. 15 is a schematic diagram of a cartridge according to yet another embodiment of the present application. FIG. 16 is an exploded view of a cartridge according to an embodiment of the present application. In this embodiment, the cartridge 1 further includes a decorative material 90 sleeved in the tube 40 and the sealing material 50, and the decorative material 90 has a first end face 91 and a second end face 92 provided back to back with each other, the first end face 91 being flush with a surface of the sealing material 50 remote from the tube 40, and the second end face 92 being flush with a surface of the filter 70 remote from the sealing material 50.

[0078] The cartridge 1 may further include a decorative material 90 sleeved on the tube 40 and the sealant 50. The decorative material 90 is used to protect the tube 40 and the sealant 50. The decorative material 90 can be provided with various patterns, shapes, colors, and textures to enhance the appearance effect of the cartridge 1. In this embodiment, both ends of the decorative material 90 can be flush with the sealant 50 and the filter 70, respectively, to improve the flatness of the cartridge 1.

[0079] Optionally, the material of the decorative material 90 includes, but is not limited to, food grade chipping paper. Further optionally, the material of the decorative material 90 includes, but is not limited to, chipping paper having a weight of 32 to 40 g / m 2 This includes, but is not limited to, tipping paper.

[0080] Optionally, the length of the decorative material 90 is 42-46 mm in the axial direction of the tube 40. In the radial direction of the tube 40, the outside diameter of the decorative material 90 is 7.15-7.3 mm.

[0081] 17, which is a schematic diagram of a cartridge according to yet another embodiment of the present application. In this embodiment, the tube 40 has two avoidance mark areas 93 corresponding to the receiving space 71.

[0082] In this embodiment, by providing an avoidance mark area 93 corresponding to the storage space 71 in the tube 40, the user is notified of the location of the storage space 71, and it is possible to prevent the tube 40 and the decorative material 90 from bursting at the portion corresponding to the storage space 71 when the user inhales, thereby exposing the functional material 30. Specifically, a pattern, color, texture, etc. can be provided in the portion of the decorative material 90 corresponding to the mark area.

[0083] 18, which is a schematic cross-sectional view of a cartridge according to an embodiment of the present application taken along a radial direction. In this embodiment, the tube 40 further has two press-on marking areas 94 arranged back to back, and a line connecting the centers of the two press-on marking areas 94 is perpendicular to the extension direction of the storage space 71.

[0084] In this embodiment, two pressable sign areas 94 can be provided to inform the user of the position to be pressed. When the user inhales, the functional material 30 can be pressed by hand to burst and release the functional part 32. Furthermore, the line connecting the centers of the two pressable sign areas 94 is perpendicular to the extension direction of the storage space 71. That is, the pressable sign area 94 is not located in the extension direction of the storage space 71, but is located in a direction perpendicular to the extension direction of the storage space 71. This allows the filter 70 to be pressed and the filter 70 to transmit the force to the functional material 30 better. If the pressable sign area 94 is not located in the extension direction of the storage space 71, it is difficult for the pressing force to be transmitted to the functional material 30 and to burst it.

[0085] The above provides a detailed introduction of the contents provided in the embodiments of the present application, and describes the principles and embodiments of the present application. The above description is only used to help understand the method of the present application and its core idea. In addition, those skilled in the art may make changes to the specific embodiments and application scope based on the idea of ​​the present application. In summary, the present specification should not be understood as limiting the present application. [Explanation of symbols]

[0086] 1...cartridge, 2...filter assembly, 70...filter, 71...accommodation space, 72...first surface, 73...second surface, 74...groove, 30...functional material, 31...housing, 32...functional part, 40...tube body, 41...accommodation space, 50...sealing material, 60...smoke generating material, 10...cooling material, 100...first through hole, 101...first end, 102...second end, 81...first ventilation seal portion, 82...second ventilation seal portion, 83...hole, 90...decorative material, 91...first end face, 92...second end face, 93...avoidance mark area, 94...pressure mark area

Claims

1. 1. A filter assembly comprising: Includes filters and functional materials. An accommodation space is provided in a radial direction of the filter, The functional material is fixed in the storage space, and the filter is in contact with a part of an outer surface of the functional material. A filter assembly comprising:

2. The filter has a first surface and a second surface arranged back to back in a radial direction, and the storage space penetrates the first surface and the second surface. The filter assembly of claim 1 .

3. The functional material abuts against a side wall of the storage space. The filter assembly of claim 1 .

4. The filter and the functional material form an interference fit, and the ratio of the size of the opening of the accommodating space to the size of the functional material in the axial direction of the filter is (0.9 to 0.95): 1; 4. The filter assembly of claim 3.

5. The side wall has a groove, and a portion of the functional material is provided in the groove.

5. The filter assembly of claim 4.

6. In the axial direction of the filter, the ratio of the size of the opening of the accommodation space to the size of the filter is 1:(2.8 to 4); 3. The filter assembly of claim 2.

7. The axial length of the filter is 8 to 10 mm, and the radial diameter of the filter is 6.5 to 7 mm. The filter assembly of claim 1 .

8. The functional material includes a housing and a liquid or gaseous functional part provided in the housing, the housing abuts against the filter, and the housing can burst when it receives a preset external force along a radial direction of the filter. The filter assembly of claim 1 .

9. When the housing is ruptured, the liquid functional part can be adsorbed onto the filter.

9. The filter assembly of claim 8.

10. The shape of the functional material is a sphere, an ellipsoid, or a cylinder. The filter assembly of claim 1 .

11. When the functional material has a spherical shape, the diameter of the functional material is 3 to 4 mm, and when the functional material has an ellipsoidal or cylindrical shape, the outer diameter of the functional material in the radial direction of the filter is 3 to 4 mm, and the length of the functional material in the axial direction of the filter is 4 to 7 mm. The filter assembly of claim 10.

12. A cartridge comprising: A filter assembly according to any one of claims 1 to 11, comprising a tube, a sealant, a smoke generating material, a cooling material, and the filter assembly according to any one of claims 1 to 11; The tube is provided with a storage space, The sealing material is sealed to one end of the tube body and seals the storage space, The smoke generating material is disposed within the storage space and is adjacent to the sealing material; The cooling material is provided within the storage space and is adjacent to the smoke generating material; The filter assembly is disposed within the storage space and is adjacent to the coolant. A cartridge characterized by:

13. the coolant has a first through hole penetrating a first end and a second end provided back to back with each other, the cartridge further includes a first vent seal portion and a second vent seal portion, the first vent seal portion is fixed to the first end and covers the first through hole, the second vent seal portion is fixed to the second end and covers the second through hole, the first vent seal portion is adjacent to the smoke generating material, and the second vent seal portion is adjacent to the filter; 13. A cartridge according to claim 12.

14. The first ventilation seal portion is provided with at least one first hole, and / or the second ventilation seal portion is provided with at least one second hole.

14. A cartridge according to claim 13.

15. The tube has an avoidance mark area corresponding to the storage space.

13. A cartridge according to claim 12.

16. The tube further has two pressable marking areas arranged back to back, and a line connecting the centers of the two pressable marking areas is perpendicular to the extension direction of the storage space.

13. A cartridge according to claim 12.

17. The tube has a length of 42 to 46 mm, an outer diameter of 6.9 to 7.1 mm, and an inner diameter of 6.4 to 6.65 mm.

13. A cartridge according to claim 12.

18. The coolant has a length of 16 to 23 mm and an outer diameter of 6 to 6.6 mm.

13. A cartridge according to claim 12.

19. The cartridge further includes a decorative material sleeved on the tube and the sealant, the decorative material having a first end surface and a second end surface arranged back to back, the first end surface being flush with a surface of the sealant remote from the tube, and the second end surface being flush with a surface of the filter remote from the sealant.

13. A cartridge according to claim 12.

20. The length of the decorative material in the axial direction of the tube is 42 to 46 mm, and the outer diameter of the decorative material in the radial direction of the tube is 7.15 to 7.3 mm.

20. A cartridge according to claim 19.

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