Sideflow smoke removal device and its control method

Abstract

A sideflow smoke removal device and its control method are provided. According to some embodiments of this disclosure, the sideflow smoke removal device may include: a housing having a smoking space formed inside; an article insertion part located at one end of the housing and having an opening for inserting a smoking article into the smoking space; an ignition part for igniting the smoking article inserted into the smoking space; a sideflow smoke treatment part for treating the sideflow smoke generated from the smoking article inserted into the smoking space; and a cutting-off part. The cutting-off part ensures convenient and safe fire extinguishing functionality by providing a function to cut off the smoking article inserted into the smoking space.

Description

Technical Field

[0001] This disclosure relates to a sidestream smoke removal device and its control method. More specifically, this disclosure relates to a sidestream smoke removal device and a control method performed in the device, which further improves ease of use and safety by providing a safe fire extinguishing function for smoking articles. Background Technology

[0002] A sidestream smoke removal device is a smoking aid designed to reduce hand odor and remove (purify) sidestream smoke. Sidestream smoke removal devices typically have an enclosed smoking space and a sidestream smoke removal unit, allowing users to smoke by inserting a cigarette into the smoking space inside the device.

[0003] However, most sideflow smoke removal devices proposed to date lack a fire extinguishing unit. Therefore, users experience the inconvenience of having to directly remove the cigarette after smoking to extinguish the fire, and errors during the extinguishing process can lead to burns or fires. Summary of the Invention

[0004] Technical problems to be solved

[0005] The technical problem to be solved by some embodiments of the present disclosure is to provide a sideflow smoke removal device and a control method performed in the device, which can further improve the ease of use and safety by providing a safe fire extinguishing function for smoking products.

[0006] The technical problem addressed in this disclosure is not limited to the technical problems described above. Other technical problems not mentioned can be clearly understood by those skilled in the art through the following description.

[0007] means for solving problems

[0008] A sideflow smoke removal device according to some embodiments of the present disclosure for solving the above-mentioned technical problems may include: a housing having a smoking space formed inside; an article insertion part located at one end of the housing and having an opening for inserting a smoking article into the smoking space; an ignition part for igniting the smoking article inserted into the smoking space; a sideflow smoke treatment part for treating the sideflow smoke generated by the smoking article inserted into the smoking space; and a cutting part for providing a cutting function for the smoking article inserted into the smoking space.

[0009] In some embodiments, a push-button is provided on the outer surface of the housing, and the cutting portion can be configured to cut off the inserted smoking article when an external force is applied to the push-button.

[0010] In some embodiments, the cutting portion may be configured to cut off the inserted smoking article when an external force is applied to the housing to twist the housing.

[0011] In some embodiments, the cutting portion may be configured to cut off the inserted smoking article when an external force is applied to the outer casing to extend or retract the outer casing.

[0012] In some embodiments, the cutting portion may include a plurality of cutting blades and have an opening, and the cutting portion may be configured to cut the smoking article when the plurality of cutting blades retract while the inserted smoking article has passed through the opening.

[0013] In some embodiments, the cutting portion includes a plurality of cutting blades and has an opening. The cutting portion can be configured to cut the smoking article as the plurality of cutting blades move while the inserted smoking article passes through the opening. In this case, as the plurality of cutting blades move, the overlap area between the plurality of cutting blades can increase, and the size of the opening can decrease.

[0014] In some embodiments, the cutting portion may be located in a fixed position and configured to cut off a specific portion of the inserted smoking article.

[0015] In some embodiments, the cutting portion may be configured to be movable.

[0016] In some embodiments, the sideflow smoke treatment unit may include a filter element and an exhaust fan, wherein the filter element is used to filter the sideflow smoke and the exhaust fan is used to discharge the filtered sideflow smoke.

[0017] In some embodiments, the housing may be provided with ventilation holes to allow outside air to flow in.

[0018] In some embodiments, the sideflow smoke removal device may further include: a temperature sensor configured to measure the temperature near the downstream end of the smoking material portion constituting the inserted smoking article; and a control unit configured to detect the end of smoking based on the temperature measured by the temperature sensor.

[0019] The effects of the invention

[0020] According to some embodiments of the present disclosure described above, a cutting section for cutting off smoking articles can be provided inside the side-flow smoke removal device. The cutting section prevents further combustion by cutting off the burning smoking article, thereby providing a convenient and safe fire extinguishing function at the user's desired time, and minimizing the risk of burns (e.g., burns due to carelessness during direct fire extinguishing) and fire risks caused by user negligence.

[0021] In addition, the ventilation holes and exhaust fans can be appropriately controlled according to the smoking progress, thereby improving the user's smoking satisfaction.

[0022] Furthermore, an automatic fire extinguishing function can be activated when smoking is detected to have ended. This further minimizes the risk of fire and burns caused by user negligence.

[0023] The effects of the technical concept of this disclosure are not limited to those described above. Other effects not mentioned will be clearly understood by those skilled in the art from the following description. Attached Figure Description

[0024] Figures 1 to 4 This is a schematic diagram illustrating the sideflow smoke removal apparatus and various modifications of some embodiments of the present disclosure.

[0025] Figure 5 This is a schematic diagram illustrating a sideflow smoke removal device with fire extinguishing function according to some embodiments of this disclosure.

[0026] Figures 6 to 8 This is a schematic diagram illustrating various operating modes of a sideflow smoke removal device with fire extinguishing function according to some embodiments of this disclosure.

[0027] Figure 9 and Figure 10 This is a schematic diagram illustrating the cutting structure of the cutting portion in some embodiments of this disclosure.

[0028] Figure 11 A schematic flowchart illustrating a control method for a sideflow smoke removal apparatus according to some embodiments of the present disclosure.

[0029] Figure 12 A schematic flowchart illustrating a control method for a sideflow smoke removal apparatus according to some other embodiments of this disclosure.

[0030] Figure 13 This is a schematic diagram illustrating the current smoking location determination method of some embodiments of this disclosure. Detailed Implementation

[0031] The preferred embodiments of this disclosure will now be described in detail with reference to the accompanying drawings. The advantages, features, and methods of implementing this disclosure will become apparent from the accompanying drawings and the embodiments described in detail below. However, the technical concept of this disclosure is not limited to the embodiments described below, and can be implemented in various different forms. The following embodiments are only used to complete the technical concept of this disclosure and to fully inform those skilled in the art of the scope of this disclosure. The technical concept of this disclosure is defined by the scope of the claims.

[0032] When affixing reference numerals to components in each of the accompanying drawings, it should be noted that the same components should be given the same reference numerals whenever possible, even when represented in different drawings. Furthermore, detailed descriptions of the components or functions of relevant prior art may be omitted if they are deemed to obscure the gist of this disclosure.

[0033] Unless otherwise defined, all terms (including technical and scientific terms) used in this specification are to be used in a meaning commonly understood by one of ordinary skill in the art to which this disclosure pertains. Furthermore, unless explicitly defined, commonly used terms that are defined in dictionaries should not be ideally or excessively interpreted. The terminology used in the following embodiments is for illustrative purposes only and is not intended to limit the scope of this disclosure. In this specification, unless specifically indicated by the context, a single form includes multiple forms.

[0034] Furthermore, in describing the components of this disclosure, terms such as first, second, A, B, (a), (b), etc., may be used. These terms are used only to distinguish a component from other components, and the nature, order, or sequence of the related components is not limited by the terms. It should be understood that if a component is described as "connected," "combined," or "linked" to another component, it may mean that the component is not only directly "connected," "combined," or "linked" to another component, but also indirectly "connected," "combined," or "linked" via a third component.

[0035] The terms “comprises” and / or “comprising” as used in this disclosure specify the presence of the described components, steps, actions and / or elements, but do not exclude the presence or addition of one or more other components, steps, actions and / or elements.

[0036] First, some terms used in the various embodiments of this disclosure will be explained.

[0037] In the following embodiments, "smoking article" can refer to any smokeable article or any article that provides a smoking experience, regardless of whether it is based on tobacco, tobacco derivatives, expanded tobacco, reconstituted tobacco, or tobacco substitutes. For example, smoking articles can include smokeable articles such as cigarettes, cigars, and cigarillos.

[0038] In the following embodiments, "smoking material" can refer to a substance that produces smoke and / or aerosol or is used for smoking. For example, smoking material can include tobacco material. For example, tobacco material can include tobacco leaves, tobacco stems, or substances processed therefrom. As more specific examples, tobacco material can include pulverized tobacco leaves, pulverized reconstituted tobacco, expanded pipe tobacco, expanded stems, and reconstituted tobacco, etc. However, it is not limited to this.

[0039] In the following embodiments, "upstream" or "upstream direction" can refer to a direction away from the user's mouth, while "downstream" or "downstream direction" can refer to a direction closer to the user's mouth. The terms "upstream" and "downstream" can be used to describe the relative positions of elements constituting a smoking article. For example, in... Figure 1 In the smoking article 30 illustrated above, the filter tip is located downstream of or in the downstream direction of the smoking substance portion, and the smoking substance portion is located upstream of or in the upstream direction of the filter tip.

[0040] In the following embodiments, "longitudinal direction" may refer to the direction corresponding to the longitudinal axis of the smoking product.

[0041] In the following embodiments, "puff" may refer to the user's inhalation, which can mean the state of being drawn into the user's oral cavity, nasal cavity, or lungs through the user's mouth or nose.

[0042] In the following, various embodiments of the present disclosure will be described in detail with reference to the accompanying drawings.

[0043] Figure 1 This is a schematic diagram illustrating a sideflow smoke removal device 1 according to some embodiments of the present disclosure. In particular, Figure 1 The accompanying drawings show the state of the inserted smoking article 30.

[0044] like Figure 1 As shown, the side-flow smoke removal device 1 includes a housing 11, a product insertion part 12, a rear cover 13, a heat insulation part 14, a temperature sensor 20, an ignition part 15, a side-flow smoke treatment part 16, a mesh screen 17, a display part 19, and a control part 18. However, Figure 1 Only components relevant to embodiments of this disclosure are shown. Therefore, those skilled in the art to which this disclosure pertains will understand that other components may also be included. Figure 1 Other general-purpose components besides those shown. For example, the sideflow smoke removal device 1 may also include a battery (not shown) for supplying power to electrical components (e.g., control unit 18, display unit 19, etc.). Furthermore, Figure 1 Some of the components shown may not be essential components of the sideflow smoke removal device 1. That is, the sideflow smoke removal device 1 can be implemented by omitting some of the components shown. For example, the sideflow smoke removal device 1 may not include the display 19. The components of the sideflow smoke removal device 1 will be described below.

[0045] The housing 11 can form a smoking space inside the sideflow smoke removal device 1, and can also form at least a portion of the exterior of the sideflow smoke removal device 1. Although Figure 1 In this context, the housing 11 refers to the sidewall of the sideflow smoke removal device 1, but the housing 11 can refer to all external structural features including the article insertion part 12, the rear cover 13, and the heat insulation part 14. To ensure the durability of the sideflow smoke removal device 1 and minimize the risk of breakage, the housing 11 is preferably made of a robust material.

[0046] In some embodiments, ventilation holes 111 can be formed in the housing 11 to allow outside air to flow smoothly into the smoking space. The ventilation holes 111 allow outside air to flow in during smoking to promote combustion of the smoking product 30, thereby significantly improving the smoking function of the side-flow smoke removal device 1. Although Figure 1 The illustration shows an example of a single ventilation hole 111 formed in the outer casing 11, but the number of ventilation holes 111 can be multiple. Furthermore, the location, size, and spacing of the ventilation holes 111 can be designed in various ways. Whether the ventilation holes 111 are open or closed and / or the degree of opening and closing of the ventilation holes 111 can also be controlled by the control unit 18, which will be discussed later. Figure 11 Describe it.

[0047] Secondly, the article insertion portion 12 may be located at one end (e.g., the upper end) of the housing 11 and may form an opening for inserting the smoking article 30. The user can insert the smoking article 30 into the smoking space of the side-flow smoke removal device 1 through the article insertion portion 12. To prevent heat from escaping from the inside of the smoking space to the outside, the article insertion portion 12 is preferably made of heat-insulating material. Furthermore, to prevent the inserted smoking article 30 from shaking, the article insertion portion 12 preferably has a retainer structure capable of holding the smoking article 30.

[0048] In some embodiments, the article insertion portion 12 may have a structure capable of adjusting the opening size. For example, the article insertion portion 12 may have a structure that allows the opening to be tightened or loosened by manual operation. As another example, the article insertion portion 12 may be configured to automatically tighten the opening to fit the smoking article 30. As a more specific example, the article insertion portion 12 is controlled by a control unit 18, which can control the article insertion portion 12 to tighten the opening when the insertion of the smoking article 30 is detected by a sensor or when user input (e.g., pressing a button) is received. According to this embodiment, by adjusting the size of the opening to fit the smoking article 30, the shaking of the smoking article 30 can be prevented and the support stability can be improved. Furthermore, since smoking articles of various sizes can be inserted, the utilization rate of the side-flow smoke removal device 1 can be increased.

[0049] The smoking article 30 may consist of a downstream filter tip and a smoking substance portion connected to the upstream end of the filter tip. However, the detailed structure of the smoking article 30 can be freely varied. The filter tip may include a filter material capable of filtering smoke, and the smoking substance portion may include smoking substance. Examples of the smoking article 30 may include, but are not limited to, a combustible cigarette; the smoking article 30 may include any article that produces sideflow smoke when smoked.

[0050] Secondly, the rear cover 13 can be located at the other end (e.g., the lower end) of the outer casing 11 and serve as a cover for the sideflow smoke removal device 1. A gas emission channel can be formed in the rear cover 13 so that the sideflow smoke processed (purified) by the sideflow smoke treatment unit 16 is discharged to the outside. For example, a gas emission channel such as micropores can be formed in the rear cover 13.

[0051] Secondly, the heat insulation part 14 is made of a material with low thermal conductivity, thereby preventing heat from the inside of the smoking space from escaping to the outside. The heat insulation part 14 is provided on the outer surface of the housing 11 to prevent the risk of burns due to internal heat when the user's body comes into contact with the sideflow smoke removal device 1 (e.g., when holding the device 1 for smoking).

[0052] Secondly, the temperature sensor 20 can be placed in the smoking space to measure the temperature of the smoking article 30 inserted into the smoking space. The number, shape, placement, and spacing of the temperature sensors 20 can be designed in various ways, and may vary depending on the embodiment.

[0053] like Figure 1As shown, the temperature sensor 20 can be configured to measure the temperature near the downstream end of the smoking material portion. In this case, the temperature sensor 20 alone can be used to accurately determine whether smoking has ended without the need for an additional monitoring module. This can be understood as utilizing the fact that smoking usually ends when the smoking material portion is completely burned. For example, when the temperature measured by the temperature sensor 20 is above a reference value (e.g., when the current smoking position reaches the downstream end of the smoking material portion), or when the temperature measured by the temperature sensor 20 rises and then falls below the reference value (e.g., when the combustion intensity weakens at the downstream end of the smoking material portion), the control unit 18 can determine that smoking has ended.

[0054] In some other embodiments, the multiple temperature sensors 20 can be positioned at different locations within the smoking space. For example, as Figure 2 As illustrated, multiple temperature sensors 20-1, 20-2 can be arranged along the length of the smoking article 30. Alternatively, multiple temperature sensors 20 can be arranged in positions opposite to each other. Although Figure 2 The illustration uses two temperature sensors 20-1 and 20-2 as an example, but the number of temperature sensors 20 can be three or more. In this case, the intervals between the temperature sensors 20 can be the same or different. When using multiple temperature sensors 20, the smoking process (e.g., smoking progress) can be monitored more accurately, and various monitoring information can be obtained.

[0055] In some examples, the start of smoking can be detected (determined) by a temperature sensor (e.g., 20-2) located near the upstream end of the smoking material section. For example, when the temperature measured by the temperature sensor (e.g., 20-2) is above a reference value, the control unit 18 can determine that smoking has started.

[0056] In some examples, the smoking progress (e.g., current smoking (combustion) position) of the smoking article 30 can be determined by comparing the measured temperatures of multiple temperature sensors (e.g., 20-1, 20-2) arranged along the length direction. See later... Figure 12 and Figure 13 This example is explained in detail.

[0057] In some examples, multiple temperature sensors 20 may be positioned relative to each other with respect to the inserted smoking product 30, or they may be arranged along the circumference of the smoking product 30 in the smoking space (e.g., four temperature sensors 20 may be arranged at 90-degree intervals). In this case, the degree of tilt (swaying) of the smoking product 30 can be determined by comparing the measured temperatures of the multiple temperature sensors 20. For example, when the measured temperature of a specific temperature sensor is higher than the measured temperatures of other temperature sensors, the control unit 18 can determine that the smoking product 30 inserted in the direction of the specific temperature sensor is tilted. Alternatively, when the fluctuation of the measured temperatures of the multiple temperature sensors 20 is above a reference value, the control unit 18 can determine that the inserted smoking product 30 is swaying.

[0058] In some other embodiments, a temperature sensor 20 with an elongated body can be disposed in the smoking space. For example, the elongated temperature sensor 20 can be disposed along the length of the smoking article 30. According to this embodiment, the temperature sensor 20 can be configured such that a first portion of the elongated body can measure the temperature of a first corresponding portion of the smoking material portion constituting the smoking article 30, and a second portion can measure the temperature of a second corresponding portion of the smoking material portion. Any specific implementation method can be used. In this case, the smoking process can be monitored based on the measured temperature of specific portions of the elongated body. For example, the control unit 18 can determine the smoking progress of the smoking article 30 by comparing the measured temperatures of the various portions of the elongated body.

[0059] In some other embodiments, the temperature sensor 20 may be configured based on a combination of the embodiments described above.

[0060] Secondly, the ignition unit 15 can be provided in the smoking space to ignite the smoking product 30 inserted into the smoking space. The ignition unit 15 can be controlled by the control unit 18, and the ignition function can be performed manually by the user. The number, shape, and arrangement of the ignition units 15 can be designed in various ways, and may vary depending on the embodiment.

[0061] In some embodiments, the ignition part 15 may be disposed in a fixed position. Specifically, as shown in the figure... Figure 1 As shown, the ignition section 15 can be positioned near the upstream end of the inserted smoking article 30. In this case, the structure of the side-flow smoke removal device 1 is simplified, thereby minimizing the defect rate during manufacturing.

[0062] In some other embodiments, the ignition part 15 can be designed and implemented as movable. The specific implementation method can be any method. For example, the ignition part 15 can be implemented to move along its length by manual operation by a user or control by the control unit 18. In some examples, the control unit 18 can move the ignition part 15 to the upstream end of the smoking article 30 in response to detecting the insertion of the smoking article 30. According to this embodiment, the sideflow smoke removal device 1 is generally applicable to smoking articles of various lengths, thereby greatly improving the utilization rate of the sideflow smoke removal device 1.

[0063] Secondly, the sideflow smoke treatment unit 16 can be disposed in the smoking space to perform various treatments on the sideflow smoke generated from the inserted smoking product 30. For example, the sideflow smoke treatment unit 16 can be located between the inserted smoking product 30 and the rear cover 13 to perform the function of purifying the sideflow smoke. In addition, the sideflow smoke treatment unit 16 can also perform an exhaust function to smoothly discharge the purified sideflow smoke to the outside. However, the detailed structure and operation mode of the sideflow smoke treatment unit 16 can be designed in various ways, which may vary depending on the embodiment.

[0064] In some embodiments, as shown in the figures, the sideflow smoke treatment unit 16 may be configured to include a filter member 161 and an exhaust fan 162. The filter member 161 can perform the function of purifying sideflow smoke, while the exhaust fan 162 can perform the function of discharging sideflow smoke. For example, the exhaust fan 162 can rotate to draw sideflow smoke toward the filter member 161 and smoothly discharge the sideflow smoke that has passed through the filter member 161 to the outside. The operation of the exhaust fan 162 can be controlled by the control unit 18, which will be referred to later. Figure 11 The accompanying drawings illustrate this.

[0065] Secondly, the mesh 17 can be disposed between the side-flow smoke treatment section 16 and the rear cover 13 to serve as a safety net. For example, the mesh 17 can prevent specific objects inside the smoking space (e.g., some pieces of the filter section 161, etc.) from detaching towards the rear cover 13.

[0066] Secondly, the display unit 19 may be located on the outer surface of the housing 11 to display various types of information under the control of the control unit 18. For example, the display unit 19 may display information about the smoking process, device information, smoking history information, user information, etc. Here, for example, information about the smoking process may include smoking progress information (e.g., any information related to smoking progress such as smoking progress, current smoking position, remaining number of puffs, smoking time, remaining smoking time, etc.), puff information (e.g., all information related to puffing events such as number of puffs, puff length, puff interval, puff intensity, whether puffing is in progress, etc.), but is not limited to these. For example, device information may include information such as power status, whether there is a malfunction, and battery status (e.g., remaining power, whether charging is required, etc.), but is not limited to these. Smoking history information may include the cumulative number of smokings, but is not limited to these.

[0067] The display unit 19 is equipped with a visual display unit such as an LED display, which enables it to visually display the aforementioned information. However, the specific display unit can be freely changed.

[0068] Secondly, the control unit 18 can control the overall operation of the sideflow smoke removal device 1. For example, the control unit 18 can control the operation of the exhaust fan 162, the display unit 19, and other components included in the sideflow smoke removal device 1. Furthermore, the control unit 18 can determine the smoking process of the smoking product 30 and can determine whether the sideflow smoke removal device 1 is in an operational state by checking the status of each component of the sideflow smoke removal device 1. (See below for further details.) Figures 11 to 13 The detailed operating method of the control unit 18 is explained in detail.

[0069] The control unit 18 can be implemented by at least one processor. This processor can be implemented by a plurality of logic gate arrays, or by a combination of a general-purpose microprocessor and a memory storing a program executable by the microprocessor. Furthermore, as will be understood by those skilled in the art to which this disclosure pertains, the control unit 18 can also be implemented by other forms of hardware.

[0070] Although Figure 1 The illustration shows the control unit 18 located outside the housing 11 of the side-flow smoke removal device 1, but this is only for ease of understanding, and the location of the control unit 18 can be freely changed. For example, to prevent malfunctions caused by external impacts, the control unit 18 can be located in a specific position inside the housing 11.

[0071] On the other hand, in some embodiments of this disclosure, the sideflow smoke removal device 1 may also include modules that provide auditory and / or tactile outputs. For example, the sideflow smoke removal device 1 may also include a speaker, a vibration module, etc. In this case, the control unit 18 can provide various information to the user by further using the modules illustrated above.

[0072] Furthermore, in some embodiments of this disclosure, such as Figure 3 As shown, the side-flow smoke removal device 1 may include an elastic support portion 21, which is configured to elastically support the upstream end of an inserted smoking article 30. The elastic support portion 21 may include a stretchable and contractile elastomer such as a spring, and may be configured to contract along the insertion direction as the smoking article 30 is inserted. For example, the elastic support portion 21 is provided along its length in the smoking space and contracts in the insertion direction due to the insertion force of the smoking article 30, thereby supporting the smoking article 30 and improving the support stability and ignition stability of the smoking article 30.

[0073] In a previous embodiment, as shown in the figure, the ignition portion 15 is combined with the elastic support portion 21, and the ignition portion 15 can be configured to be in close contact with the upstream end of the smoking article 30 as it is inserted. In this case, since the ignition portion 15 supports the upstream end of the smoking article 30 together with the elastic support portion 21 and performs the ignition function, the ignition stability and ignition performance can be further improved. In this example, the portion of the ignition portion 15 that is in close contact with the upstream end of the smoking article 30 can have a sharp, protruding shape (e.g., needle-like). In this case, at least a portion of the ignition portion 15 penetrates the upstream end of the smoking article 30 as it is inserted, thus enabling more stable support of the smoking article 30 during ignition, thereby greatly improving the support stability and ignition stability of the side-flow smoke removal device 1.

[0074] Furthermore, in some embodiments of this disclosure, such as Figure 4 As shown, a support portion 22 for supporting the sides of the smoking article 30 can also be provided in the smoking space of the side-flow smoke removal device 1. For example, as shown, multiple support portions 22 can be provided to support the sides of the smoking article 30 at a first location and at a second location. To support specific locations of the smoking article 30, multiple support portions 22 can be provided along the circumference of the smoking article 30 (for example, four support portions 22 at 90-degree intervals), or a single ring-shaped support portion 22 can be provided. As described above, the number, arrangement, shape, etc., of the support portions 22 can be designed and implemented in various ways.

[0075] Furthermore, in some embodiments of this disclosure, the side-flow smoke removal device 1 may also include a cutting-off section ( Figure 5(23) The cutting-off section 23 prevents further combustion by cutting off the burning smoking product 30, thereby providing a convenient and safe fire extinguishing function at the user's desired time, and minimizing the risk of burns (e.g., burns due to carelessness during direct fire extinguishing) and fire risk due to user negligence. See below for further details. Figure 5 The following figures describe this embodiment in detail.

[0076] At this point, we have referred to Figures 1 to 4 The structure and various modifications of the sideflow smoke removal device 1 according to some embodiments of the present disclosure are described. As described above, information about the smoking process can be provided by multiple temperature sensors 20 and a display unit 19, and the support stability and ignition stability of the smoking article 30 can be improved by the elastic support unit 22 and / or the support unit 23. Therefore, the ease of use of the sideflow smoke removal device 1 can be improved, and user satisfaction can be increased.

[0077] In the following text, reference will be made to Figure 5 The following figures illustrate in detail a sideflow smoke removal device 1 with fire extinguishing function according to some embodiments of the present disclosure. However, for clarity of the present disclosure, details related to... Figures 1 to 4 Explanation of repeated content.

[0078] Figure 5 This is a schematic diagram illustrating a sideflow smoke removal device 1 with fire extinguishing function, used to explain some embodiments of the present disclosure.

[0079] like Figure 5 As shown, the side-flow smoke removal device 1 may include a cutting section 23, which provides a fire extinguishing function by cutting off the inserted smoking article 30. However, the arrangement, operation method, and / or cutting structure of the cutting section 23 can be designed in various ways.

[0080] First, the cutting section 23 can be designed in various ways as follows.

[0081] In some examples, the cutting part 23 may be fixed in a position and configured to cut off a specific portion of the inserted smoking article 30. For example, the cutting part 23 may be fixedly positioned at a location capable of cutting off the area between the filter section and the smoking material section. In this case, a safe fire extinguishing function can be ensured regardless of the current smoking (combustion) position of the smoking article 30, and the structure of the side-flow smoke removal device 1 can be simplified.

[0082] In some other examples, the cutting part 23 can be configured to be movable. For example, the cutting part 23 can be configured to move by external force (manual operation) from the user, or it can be configured to move under the control of the control unit 18. As a more specific example, the cutting part 23 can be automatically moved by the control unit 18 to the vicinity of the current smoking (combustion) position of the smoking article 30. As for the method by which the control unit 18 determines the current smoking (combustion) position of the smoking article 30, refer to... Figure 13 The explanatory content.

[0083] Secondly, the operation method of the cutting part 23 can also be designed in various ways as follows.

[0084] In addition, in some examples, such as Figure 6 As illustrated, the push-button 24 can be provided on the outer surface of the housing 11. Furthermore, the cutting portion 23 can be configured to actuate when an external force F is applied to the push-button 24 (i.e., when the user presses the button 24). For example, the cutting portion 23 can be configured to be mechanically linked to the push-button 24, thereby cutting the smoking article 30 by the external force F applied to the push-button 24. Alternatively, the cutting portion 23 can be electrically linked to the control unit 18, and the control unit 18 can actuate the cutting portion 23 in response to the external force F of the push-button 24.

[0085] In some other examples, such as Figure 7 As illustrated, the cutting section 23 can be configured to operate when an external force F is applied to the outer casing 11 to twist it. For example, the cutting section 23 can be configured to be mechanically linked to the outer casing 11, thereby cutting the smoking article 30 by the external force F to twist the outer casing 11 (e.g., holding the outer casing 11 with both hands and rotating it in the opposite direction). Alternatively, the cutting section 23 can be electrically linked to the control section 18, and the control section 18 can operate the cutting section 23 in response to the aforementioned external force F to twist it.

[0086] In some other examples, such as Figure 8 As illustrated, the cutting portion 23 can be configured to operate when an external force F1 is applied to the outer casing 11 to extend the outer casing 11 or an external force F2 to retract the outer casing 11. For example, the cutting portion 23 can be configured to be mechanically linked to the outer casing 11, thereby cutting the smoking article 30 by an external force F1 to extend the outer casing 11 (e.g., holding the outer casing 11 with both hands and pulling it in the opposite direction) or an external force F2 to retract the outer casing 11 (e.g., holding the outer casing 11 with both hands and pushing it in the opposite direction). Alternatively, the cutting portion 23 can be electrically linked to the control portion 18, and the control portion 18 can operate the cutting portion 23 in response to the aforementioned external force F1 to extend or external force F2 to retract.

[0087] Secondly, the cutting structure of the cutting part 23 can also be designed in various ways as follows.

[0088] In some examples, such as Figure 9 As illustrated, the cutting section 23-1 may include a plurality of cutting blades 231, 232, and may include an opening formed near the center for the smoking article 30 to pass through. For example, it may be designed such that as the smoking article 30 is inserted into the smoking space, the smoking article 30 passes through the opening of the cutting section 23-1. Furthermore, the cutting section 23-1 may be configured to cut the smoking article 30 as the deployed plurality of cutting blades 231, 232 retract. The plurality of cutting blades 231, 232 may be arranged along the circumferential direction of the opening (e.g., clockwise or counterclockwise), and their number may be freely varied. This cutting structure of the cutting section 23-1 can be understood as similar to the folding structure of a folding steamer.

[0089] In some other examples, such as Figure 10 As illustrated, the cutting section 23-2 may include a plurality of cutting blades 231, 232, and may include an opening formed near the center for the smoking article 30 to pass through. For example, it may be designed so that the smoking article 30 passes through the opening of the cutting section 23-2 as it is inserted into the smoking space. Furthermore, the cutting section 23-2 may be configured to cut the smoking article 30 as the plurality of cutting blades 233, 234 move in a direction that reduces the size of the opening. The plurality of cutting blades 233, 234 may be arranged along the circumferential direction of the opening (e.g., clockwise or counterclockwise), and may be designed to increase the overlap area between the plurality of cutting blades 233, 234 as they move in the direction that reduces the size of the opening, and the number of cutting blades 233, 234 may be freely varied. This cutting structure of the cutting section 23-2 can be understood as similar to the aperture structure of a camera.

[0090] In some other examples, the cutting portion 23 may have a cutting structure different from the structure described above.

[0091] The various examples described so far can be combined in various forms to implement the cut-off portion 23. For example, the cut-off portion 23 is as follows: Figure 7 The example actions shown have Figure 9 The illustrated cutting structure can be made movable by manual operation of the user.

[0092] At this point, we have referred to Figures 5 to 10 A side-flow smoke removal device 1 with fire extinguishing function according to some embodiments of the present disclosure has been described. As described above, by providing the cut-off part 23 as a fire extinguishing unit, a convenient and safe fire extinguishing function can be provided at the time the user expects, and the risk of burns due to user carelessness (e.g., the risk of burns due to carelessness during direct fire extinguishing) and fire risk can be minimized. Therefore, the ease of use and safety of the side-flow smoke removal device 1 can be greatly improved.

[0093] In the following text, reference will be made to Figure 11 The following figures illustrate control methods according to some embodiments of the present disclosure.

[0094] Each step of the control method described below can be executed by the control unit (e.g., 18) of the sideflow smoke removal device (e.g., 1). Furthermore, each step of the above control method can be implemented by one or more instructions executed by the control unit. The above control method can be applied to various types of sideflow smoke removal devices, but for ease of understanding, it is assumed that the above control method is used in… Figures 1 to 10 The explanation will continue with the execution of the illustrated side-flow smoke removal device 1. Therefore, in the following explanation, when the subject of a specific action is omitted, it can be understood that it is executed by the control unit 18 of the illustrated device 1.

[0095] Figure 11 This is a schematic flowchart illustrating a control method according to some embodiments of the present disclosure. However, this is only a preferred embodiment for achieving the purposes of the present disclosure, and some steps may be added or deleted as needed.

[0096] like Figure 11 As shown, the above control method can begin from step S10, which detects the start of smoking. In this step, the start of smoking can be detected using various methods.

[0097] In some embodiments, the control unit 18 can detect the start of smoking by receiving user input (e.g., button input, etc.) to activate the ignition unit 15. Alternatively, the control unit 18 can recognize the start of smoking and activate the ignition unit 15 by receiving user input requesting to start smoking (e.g., button input, etc.).

[0098] In some other embodiments, the control unit 18 may detect the start of smoking in response to a determination that the temperature measured by the temperature sensor 20 is above a reference value. In this case, for example, the temperature sensor 20 may be configured to measure the temperature near the upstream end of the smoking article 30 in the smoking space.

[0099] In step S20, the control unit 18 may open (e.g., partially open, fully open) the vent 111 in response to the detection of the start of smoking. This is because the outside air flowing in through the vent 111 can promote the combustion of the smoking product 30. Furthermore, the control unit 18 may activate the exhaust fan 162. This is because the sideflow smoke generated during smoking can be smoothly discharged with the operation of the exhaust fan 162.

[0100] On the other hand, according to some embodiments of this disclosure, the control unit 18 can control the vent 111 and the exhaust fan 162 based on the user's inhalation event while smoking. However, the specific control methods can be varied.

[0101] In some examples, the control unit 18 can adjust the opening and closing degree of the vent 111 according to the inhalation event. Specifically, the control unit 18 can further open the vent 111 during inhalation and open it less during non-inhalation. In this case, since outside air flows in more smoothly during inhalation, the combustion of the smoking product 30 can be further promoted. In addition, the problem of unpurified sideflow smoke leaking through the vent 111 during non-inhalation can be mitigated. For reference, since a large amount of sideflow smoke is not generated during inhalation and an airflow path is formed for the gas flowing in through the vent 111, the problem of sideflow smoke leakage will not occur even if the vent 111 is open.

[0102] In some other examples, the control unit 18 can operate (rotate) the exhaust fan 162 in the reverse direction during inhalation and in the forward direction during non-inhalation. Here, forward can refer to the rotational direction that draws the sideflow smoke toward the filter member 161, while reverse can refer to the opposite rotational direction. In this case, during inhalation, the airflow is concentrated toward the upstream end of the smoking article 30 to promote combustion, while during non-inhalation, the sideflow smoke is drawn toward the filter member 161 to facilitate the smooth discharge of the sideflow smoke.

[0103] In some other examples, the control unit 18 can adjust the opening and closing degree of the vent 111 and / or the rotational speed of the exhaust fan 162 based on information about the suction event (e.g., suction intensity, suction interval, suction length, etc.). For example, when the suction intensity increases, the suction length increases, or the suction interval shortens, the control unit 18 can further open the vent 111. Conversely, the control unit 18 can open the vent 111 less. This is because the suction intensity is more likely to increase when the smoking article 30 is not burning smoothly. Alternatively, when the suction intensity increases, the suction length increases, or the suction interval shortens, the control unit 18 can increase the rotational speed of the exhaust fan 162 during suction (i.e., the reverse rotational speed). Conversely, the control unit 18 can decrease the rotational speed of the exhaust fan 162.

[0104] In some other examples, control unit 18 may perform control based on a combination of the examples described above.

[0105] In the above embodiments, the control unit 18 can detect snoring in various ways. For example, the control unit 18 can detect snoring based on temperature changes measured by the temperature sensor 20. Specifically, when the temperature change exceeds a reference value (e.g., when the combustion temperature of the smoking article 30 rises instantaneously), the control unit 18 can identify that snoring has occurred. This can be understood as the phenomenon that combustion accelerates at the upstream end of the smoking article 30 when snoring is used. Furthermore, the control unit 18 can determine the snoring intensity based on the degree of temperature change. For example, the greater the temperature change, the stronger the snoring intensity; conversely, the smaller the temperature change, the weaker the snoring intensity.

[0106] In step S30, the control unit 18 can detect the end of smoking. In this step, the control unit 18 can detect the end of smoking in various ways, depending on the embodiment.

[0107] In some embodiments, the control unit 18 can detect the end of smoking based on the measured temperature of the temperature sensor 20. For example, the temperature sensor 20 may be located near the downstream end of the smoking material portion of the smoking article 30. For instance, when the measured temperature of the temperature sensor 20 is above a reference value or decreases after rising, the control unit 18 can determine that smoking has ended.

[0108] In some other embodiments, the control unit 18 can detect the end of smoking based on the elapsed time since the start of smoking, the number of puffs, etc. For example, the control unit 18 can determine that smoking has ended when a predetermined time has elapsed since the start of smoking, when the number of puffs is greater than or equal to a baseline value, or when no puff is detected for more than a predetermined time since the most recent puff.

[0109] In some other embodiments, smoking end conditions can be set. For example, smoking end conditions can be set based on the number of puffs, the elapsed smoking time, etc. In this case, the control unit 18 can determine that smoking has ended in response to the preset smoking end conditions being met.

[0110] In step S40, the control unit 18 may execute an automatic fire extinguishing function in response to detecting the end of smoking. In this step, the control unit 18 may execute the automatic fire extinguishing function in various ways.

[0111] In some embodiments, the control unit 18 can close the vent 111 and stop the operation of the exhaust fan 162. In this case, since the inflow of outside air is prevented by closing the vent 111, the smoking product 30 can be extinguished naturally due to lack of oxygen.

[0112] In some other embodiments, the control unit 18 may close the vent 111 and operate the exhaust fan 162 for a predetermined time before stopping or continuing to operate the exhaust fan 162. In this case, by closing the vent 111 to prevent the inflow of outside air and by exhausting the internal air to the outside through the exhaust fan 162, the smoking product 30 can be extinguished naturally.

[0113] In some other embodiments, the control unit 18 may also perform an automatic fire extinguishing function via the action cut-off unit 23.

[0114] In some other embodiments, the control unit 18 may perform an automatic fire extinguishing function based on a combination of the embodiments described above. For example, the control unit 18 may perform an automatic fire extinguishing function through a first fire extinguishing process that closes the ventilation hole 111 and stops the operation of the exhaust fan 162, and a second fire extinguishing process that cuts off the inserted smoking article 30 by the cutting-off part 23. In this case, the sequential execution of the first and second fire extinguishing processes may not be considered.

[0115] On the other hand, according to some embodiments of this disclosure, the control unit 18 can activate the exhaust fan 162 in the forward direction (i.e., the inhalation direction) for a predetermined time in response to detecting the end of smoking. In this case, smoking byproducts such as ash are collected near the filter member 161 by the exhaust fan 162, thereby making it easier to clean the interior of the side-flow smoke removal device 1. In some examples, the control unit 18 can adjust the rotation speed of the exhaust fan 162 according to the degree of exhaustion of the smoking product 30. For example, when the smoking product 30 is completely exhausted, there will be more byproducts, so the control unit 18 can rotate the exhaust fan 162 faster, and in the opposite case, it can rotate the exhaust fan 162 slower. The speed can be adjusted according to the number of puffs, the time elapsed since smoking, and the current smoking position (refer to...). Figure 13 The degree of depletion of smoking products 30 is determined by methods such as (e.g., [missing information]).

[0116] At this point, we have referred to Figure 11 Control methods according to some embodiments of this disclosure are described. According to the methods described above, the ventilation opening 111 and the exhaust fan 162 can be appropriately controlled according to the smoking process, thereby improving user satisfaction with the device. Furthermore, an automatic fire extinguishing function is executed when smoking ends, thus minimizing the risk of fire and burns due to user carelessness.

[0117] In the following text, reference will be made to Figure 12 Control methods according to some other embodiments of this disclosure will be described. However, for clarity of this disclosure, details related to... Figure 11 The description of the repeated content of the illustrated control method.

[0118] Figure 12This is a schematic flowchart illustrating a control method of some other embodiments of the present disclosure. However, this is only a preferred embodiment for achieving the purposes of the present disclosure, and some steps may be added or deleted as needed.

[0119] like Figure 12 As shown, the above control method can begin from step S110, which detects the start of smoking. In this step, the control unit 18 can display a notification that smoking has started via the display unit 19. For further explanation of this step, please refer to... Figure 11 Step S10 is illustrated in the example.

[0120] In step S120, the control unit 18 can monitor the smoking process. Here, the smoking process can include all smoking-related information such as smoking progress and puffing events.

[0121] In some embodiments, the control unit 18 can accurately determine the smoking progress (or current smoking (combustion) position) of the smoking product 30 by comparing the measured temperatures of multiple temperature sensors 20 disposed at different locations. Specifically, as Figure 13 As shown, assume that multiple temperature sensors 20-1, 20-2, and 20-3 are arranged along the length of the smoking space inside the side-flow smoke removal device 1. In this case, the control unit 18 can determine the current smoking position and smoking progress of the smoking product 30 by comparing the measured temperatures of the first temperature sensor 20-1, the second temperature sensor 20-2, and the third temperature sensor 20-3. For example, when the measured temperature of the first temperature sensor 20-1 is the lowest, the measured temperature of the second temperature sensor 20-2 is lower than the measured temperature of the third temperature sensor 20-3, and the measured temperature of the third temperature sensor 20-3 is the highest, the control unit 18 can determine that the current smoking position of the smoking product 30 is between the second temperature sensor 20-2 and the third temperature sensor 20-3, and closer to the third temperature sensor 20-3. At this time, the greater the temperature difference between the second temperature sensor 20-2 and the third temperature sensor 20-3, the closer the current smoking position is to the third temperature sensor 20-3.

[0122] In step S130, the control unit 18 can display monitoring information via the display unit 19. However, the type of monitoring information and its specific display method can be designed in various ways.

[0123] In some embodiments, the control unit 18 may display information about the smoking progress via the display unit 19. For example, the control unit 18 may control the display unit 19 to display an indication of the smoking article 30 (or the smoking progress) (e.g., a cigarette-shaped object), and the length of the indication decreases as smoking progresses. As another example, the control unit 18 may control the display unit 19 to display an indication area (e.g., an LED lighting area / section) indicating the smoking progress, and the size of the indication area (e.g., the number of LED lighting areas / sections) changes as smoking progresses. In this case, the size of the indication area may increase or decrease as smoking progresses.

[0124] In some other embodiments, the control unit 18 may display information about the aspiration event via the display unit 19. For example, the control unit 18 may display the number of aspirations. As another example, the control unit 18 may display an indication that aspiration is in progress in response to the detection of aspiration.

[0125] In step S140, the control unit 18 can detect the end of smoking. In this step, the control unit 18 can display an indication that smoking has ended via the display unit 19. For further explanation of this step, please refer to... Figure 11 Step S40 is illustrated in the example.

[0126] On the other hand, when the smoking is detected to have ended, the control unit 18 performs the automatic fire extinguishing function, and the display unit 19 can display an indication that the automatic fire extinguishing is completed. When the automatic fire extinguishing is completed, an indication that the automatic fire extinguishing is completed can be displayed.

[0127] At this point, we have referred to Figures 12 to 13 Control methods according to some other embodiments of the present disclosure are described. According to the above methods, information about the smoking process can be displayed on the display unit 19. Therefore, the user can confirm the smoking process in real time through the display unit 19, thereby greatly improving the ease of use of the sideflow smoke removal device 1.

[0128] This has been referred to. Figures 1 to 13 A portion of the technical concept described in this disclosure can be implemented as computer-readable code on a computer-readable medium. Such a computer-readable medium may be, for example, a removable storage medium (CD, DVD, Blu-ray disc, USB storage device, portable hard disk) or a fixed storage medium (ROM, RAM, computer-defined hard disk). The computer program recorded on the aforementioned computer-readable storage medium can be transmitted to other computing devices via a network such as the Internet and installed on those other computing devices, thereby enabling its use on those other computing devices.

[0129] In the foregoing, although it has been described that all components constituting the embodiments of this disclosure are combined as a single unit or combined to operate as a single unit, the technical concept of this disclosure is not limited to the above embodiments. That is, within the scope of the purpose of this disclosure, all components can be selectively combined in more than one way to operate.

[0130] The actions are illustrated in a specific order in the accompanying drawings, but this should not be construed as meaning that the actions must be performed only in the illustrated specific order or hierarchical sequence, or that only by performing all the illustrated actions can the desired result be obtained. In certain situations, multitasking and parallel processing may also be advantageous. In particular, the separation of various structures in the embodiments described above should not be construed as a necessity, and it should be understood that the illustrated program components and systems can be integrated together as a single software product or packaged as multiple software products.

[0131] While embodiments of the present disclosure have been described above with reference to the accompanying drawings, those skilled in the art will understand that other specific forms can be implemented without altering the technical concept or essential features of the present disclosure. Therefore, it should be understood that the above embodiments are exemplary and non-limiting in all respects. The scope of protection of this disclosure should be determined by the claims, and all technical concepts within the equivalent scope should fall within the scope of the technical concepts defined by this disclosure.

Claims

1. A side-flow smoke removal device, characterized in that, include: The outer shell has a smoking space inside; The product insertion part is located at one end of the outer casing and has an opening for inserting the smoking product into the smoking space. The ignition section is used to ignite the smoking product inserted into the aforementioned smoking space. A sideflow smoke treatment unit is used to treat sideflow smoke generated from a smoking product inserted into the smoking space described above. and The cutting part provides a cutting function for a smoking product inserted into the smoking space, automatically moves to the current burning position of the smoking product, and is mechanically linked to the outer casing. The aforementioned cutting part is configured to cut off the inserted smoking product when the outer casing is held with both hands and rotated in opposite directions.

2. The side-flow smoke removal device according to claim 1, characterized in that, A push-button is provided on the outer surface of the aforementioned housing. The aforementioned cutting part is configured to cut off the inserted smoking product when an external force is applied to the aforementioned push button.

3. The side-flow smoke removal device according to claim 1, characterized in that, The aforementioned cutting section includes multiple cutting blades and has an opening. The cutting section is configured to cut the smoking product when the plurality of cutting blades retract while the inserted smoking product is passing through the opening.

4. The side-flow smoke removal device according to claim 1, characterized in that, The aforementioned cutting section includes multiple cutting blades and has an opening. The aforementioned cutting section is configured to cut the smoking article when the plurality of cutting blades move while the inserted smoking article passes through the aforementioned opening. As the plurality of cutting blades move, the overlap area between the plurality of cutting blades increases, and the size of the opening decreases.

5. The side-flow smoke removal device according to claim 1, characterized in that, The aforementioned sideflow smoke treatment unit includes a filter element and an exhaust fan. The filter element is used to filter the sideflow smoke, and the exhaust fan is used to discharge the filtered sideflow smoke.

6. The side-flow smoke removal device according to claim 1, characterized in that, The aforementioned outer casing has ventilation holes that allow external air to flow in.

7. The side-flow smoke removal device according to claim 1, characterized in that, Also includes: A temperature sensor is configured to measure the temperature near the downstream end of the smoking material portion constituting the inserted smoking article; and The control unit detects the end of smoking based on the temperature measured by the aforementioned temperature sensor.

8. The side-flow smoke removal device according to claim 1, characterized in that, The aforementioned outer casing has ventilation holes that allow external air to flow in. The aforementioned sideflow smoke treatment unit includes an exhaust fan for discharging the aforementioned sideflow smoke. It also includes a control unit that closes the ventilation opening and stops the operation of the exhaust fan in response to the detection that smoking has ended.

9. A side-flow smoke removal device, characterized in that, include: The outer shell has a smoking space inside; The product insertion part is located at one end of the outer casing and has an opening for inserting the smoking product into the smoking space. The ignition section is used to ignite the smoking product inserted into the aforementioned smoking space. A sideflow smoke treatment unit is used to treat sideflow smoke generated from a smoking product inserted into the smoking space described above. and The cutting part provides a cutting function for a smoking product inserted into the smoking space, automatically moves to the current burning position of the smoking product, and is mechanically linked to the outer casing. The aforementioned cutting part is configured to cut off the inserted smoking product when the outer casing is held with both hands and pulled or pushed in the opposite direction.

10. The side-flow smoke removal device according to claim 9, characterized in that, A push-button is provided on the outer surface of the aforementioned housing. The aforementioned cutting part is configured to cut off the inserted smoking product when an external force is applied to the aforementioned push button.

11. The side-flow smoke removal device according to claim 9, characterized in that, The aforementioned cutting section includes multiple cutting blades and has an opening. The cutting section is configured to cut the smoking product when the plurality of cutting blades retract while the inserted smoking product is passing through the opening.

12. The side-flow smoke removal device according to claim 9, characterized in that, The aforementioned cutting section includes multiple cutting blades and has an opening. The aforementioned cutting section is configured to cut the smoking article when the plurality of cutting blades move while the inserted smoking article passes through the aforementioned opening. As the plurality of cutting blades move, the overlap area between the plurality of cutting blades increases, and the size of the opening decreases.

13. The side-flow smoke removal device according to claim 9, characterized in that, The aforementioned sideflow smoke treatment unit includes a filter element and an exhaust fan. The filter element is used to filter the sideflow smoke, and the exhaust fan is used to discharge the filtered sideflow smoke.

14. The side-flow smoke removal device according to claim 9, characterized in that, The aforementioned outer casing has ventilation holes that allow external air to flow in.

15. The side-flow smoke removal device according to claim 9, characterized in that, Also includes: A temperature sensor is configured to measure the temperature near the downstream end of the smoking material portion constituting the inserted smoking article; and The control unit detects the end of smoking based on the temperature measured by the aforementioned temperature sensor.

16. The side-flow smoke removal device according to claim 9, characterized in that, The aforementioned outer casing has ventilation holes that allow external air to flow in. The aforementioned sideflow smoke treatment unit includes an exhaust fan for discharging the aforementioned sideflow smoke. It also includes a control unit that closes the ventilation opening and stops the operation of the exhaust fan in response to the detection that smoking has ended.

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