Installation method of lampblack purification equipment

Abstract

The embodiment of the invention discloses an installation method of oil fume purification equipment, which comprises the following steps: determining the installation position of the oil fume purification equipment on a corresponding installation wall surface according to a first installation specification so as to install the oil fume purification equipment on the installation wall surface; wherein in the mounting position, the infrared temperature sensor is arranged towards the furnace end, so that a view field detection area of the infrared temperature sensor is aligned with a furnace end area, and the view field detection area is located within the range of the furnace end area; the first installation specification is used for indicating the reference installation position of the oil smoke purification equipment and the maximum horizontal offset relative to the kitchen range, and the maximum horizontal offset is the offset allowed by the oil smoke purification equipment relative to the kitchen range in any direction parallel to the plane where the kitchen range is located. According to the installation method, the maximum horizontal offset of the oil smoke purification equipment relative to the kitchen range can be determined according to the actual application scene and the installation scene of a user, humanized installation can be achieved, and the installation requirement of the user is met.

Description

Technical Field

[0001] This invention relates to the field of smart home technology, and in particular to an installation method for an oil fume purification device. Background Technology

[0002] With the improvement of living standards, range hoods, as a common kitchen appliance for purifying the kitchen environment, quickly extract and discharge the exhaust gas generated at the stove and the oil fumes produced during cooking, thereby reducing indoor oil fume pollution and achieving the purpose of purifying kitchen air and improving the user's cooking comfort.

[0003] Currently, range hoods equipped with infrared temperature measurement functions can monitor the temperature of pots and pans on the cooktop using infrared temperature sensors. Based on temperature changes during cooking, the range hood automatically controls itself. Therefore, the accuracy of temperature measurement is a crucial factor affecting the automatic control of the range hood. Furthermore, when used with a cooktop, the relative horizontal installation position of the range hood and cooktop in all horizontal directions (left, right, front, back, etc.) is also important. If the horizontal offset of the range hood relative to the cooktop is too large, the pots and pans will move out of the infrared temperature sensor's field of view, resulting in temperature measurement deviations and ultimately affecting the automatic control of the range hood. Therefore, the horizontal offset of the range hood relative to the cooktop is also a significant factor affecting its automatic control.

[0004] However, generally, the horizontal offset between the range hood and the cooktop is not defined during installation, or vice versa. This can lead to significant horizontal offsets that compromise the accuracy of the infrared temperature sensor, ultimately affecting the automatic control of the range hood. Furthermore, even if a horizontal offset is defined, it may not meet the installation needs of all users. Summary of the Invention

[0005] This invention provides an installation method for an oil fume purification device, which can determine the maximum horizontal offset of the oil fume purification device relative to the stove according to the user's actual application scenario and installation scenario, thereby achieving a user-friendly installation and meeting the user's installation needs.

[0006] This invention provides an installation method for an oil fume purification device, which includes a fume collection hood and an infrared temperature sensor. The fume collection hood is positioned above the stove. The infrared temperature sensor is positioned on the side of the fume collection hood facing the burner of the stove and is oriented towards the burner. The field of view of the infrared temperature sensor is aligned with the burner area to detect the temperature near the corresponding burner area.

[0007] Installation methods include:

[0008] The installation position of the fume purification equipment on the corresponding wall surface shall be determined in accordance with the first installation specification, so as to install the fume purification equipment on the wall surface.

[0009] In the installation position, the infrared temperature sensor is positioned facing the furnace head so that the field of view detection area of ​​the infrared temperature sensor is aligned with the furnace head area, and the field of view detection area is within the range of the furnace head area;

[0010] The first installation specification is used to indicate the reference installation position of the fume purification equipment and the maximum horizontal offset relative to the stove. The maximum horizontal offset is the allowable offset of the fume purification equipment relative to the stove in any direction parallel to the plane of the stove.

[0011] This invention provides an installation method for an oil fume purification device. This method can determine the maximum horizontal offset of the oil fume purification device relative to the stove based on the user's actual application scenario and installation scenario. During the installation phase, the user can independently select the relative horizontal offset between the stove and the oil fume purification device, achieving a user-friendly installation that meets the user's installation needs. It also ensures that the field of view detection area of ​​the infrared temperature sensor does not deviate from the burner area of ​​the stove, effectively improving the temperature measurement accuracy of the infrared temperature sensor, thereby improving the automatic control effect of the oil fume purification device, and ensuring a good cooking experience and user comfort.

[0012] It should be understood that the description in this section is not intended to identify key or essential features of the embodiments of the present invention, nor is it intended to limit the scope of the invention. Other features of the invention will become readily apparent from the following description. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a structural schematic diagram of an oil fume purification device and a stove provided in an embodiment of the present invention;

[0015] Figure 2 This is a flowchart illustrating an installation method for an oil fume purification device provided in an embodiment of the present invention;

[0016] Figure 3a This is a simplified positional relationship diagram of the reference installation position of an oil fume purification device provided in an embodiment of the present invention;

[0017] Figure 3bThis is a simplified positional diagram illustrating the maximum horizontal offset of an oil fume purification device relative to a stove, provided in an embodiment of the present invention.

[0018] Figures 4a-4f This is a schematic diagram showing the position of the field of view detection area of ​​the six infrared temperature sensors provided in this embodiment of the invention relative to the burner area of ​​the stove.

[0019] Figure 5 This is a schematic diagram of the field of view detection area and field of view angle of an infrared temperature sensor provided in an embodiment of the present invention;

[0020] Figure 6 This is a schematic diagram of another oil fume purification device and stove provided in an embodiment of the present invention;

[0021] Figure 7 This is a structural schematic diagram of another oil fume purification device and stove provided in an embodiment of the present invention;

[0022] Figure 8 This is a structural schematic diagram of another oil fume purification device and stove provided in the embodiments of the present invention. Detailed Implementation

[0023] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0024] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0025] Regarding the installation of the fume purification equipment in this embodiment of the invention, it should be noted that the fume purification equipment can be installed on a wall surface (e.g., a kitchen wall). The fume purification equipment is generally used in conjunction with a cooktop. The offset of the fume purification equipment relative to the cooktop in any direction parallel to the plane of the cooktop—that is, the relative horizontal offset between the fume purification equipment and the cooktop—has certain installation requirements. If, after installation, the horizontal offset between the fume purification equipment and the cooktop is small, and the burner or pot on the cooktop remains within the detection field of the infrared temperature sensor in the fume purification equipment, then the temperature detection function of the fume purification equipment is normal, and the automatic control effect of the fume purification equipment is good. Conversely, if, after installation, the horizontal offset between the fume purification equipment and the cooktop is large, and the burner or pot on the cooktop deviates from the detection field of the infrared temperature sensor in the fume purification equipment, then the accuracy of the temperature detection function of the fume purification equipment is reduced, and the automatic control effect of the fume purification equipment is poor.

[0026] For example, Figure 1 This is a structural schematic diagram of an oil fume purification device and a stove provided in an embodiment of the present invention, as shown below. Figure 1 As shown, the fume purification device includes a fume hood 10 and an infrared temperature sensor 20. The fume hood 10 collects oily fumes from the environment to purify it, and the infrared temperature sensor 20 detects the temperature of a corresponding area. During installation, the fume hood 10 is positioned above the cooktop 30, and the infrared temperature sensor 20 is positioned on the side of the fume hood 10 facing the burner 31 of the cooktop 30, ensuring that the field of view of the infrared temperature sensor 20 is aligned with the burner 31 area of ​​the cooktop 30. For example, the center line 21 of the field of view of the infrared temperature sensor 20 can pass through the center point of the burner 31 area of ​​the cooktop 30. For example, the infrared temperature sensor 20 and the burner 31 can have a one-to-one correspondence; that is, the infrared temperature sensor 20 can be positioned corresponding to one burner 31 below the fume purification device. In this way, the infrared temperature sensor 20 can detect the temperature near the corresponding burner 31 area (which usually corresponds to the area inside the cooking pot 40), and the infrared temperature sensor 20 has high temperature detection accuracy at this time. Therefore, it can accurately detect the temperature inside the cooking pot 40, and determine the cooking stage based on the corresponding temperature, so as to control the oil fume purification equipment to work at the appropriate level and mode.

[0027] Figure 2 This is a flowchart illustrating an installation method for an oil fume purification device according to an embodiment of the present invention, as shown below. Figure 2 As shown, the installation method includes:

[0028] S110. Determine the installation position of the fume purification equipment on the corresponding mounting wall according to the first installation specification, so as to install the fume purification equipment on the mounting wall; wherein, in the installation position, the infrared temperature sensor is set towards the burner head so that the field of view detection area of ​​the infrared temperature sensor is aligned with the burner head area, and the field of view detection area is within the range of the burner head area; the first installation specification is used to indicate the reference installation position of the fume purification equipment and the maximum horizontal offset relative to the stove, the maximum horizontal offset being the allowable offset of the fume purification equipment relative to the stove in any direction parallel to the plane where the stove is located.

[0029] Specifically, please refer to Figure 1 The installation position of the fume purification equipment on the corresponding wall can be determined according to the first installation specification, so that the fume purification equipment can be installed on the wall. For example, the wall can be a kitchen wall. After installation, the fume purification equipment is installed at the determined installation position. After installation, the infrared temperature sensor 20 should be positioned facing the burner head 31 of the stove 30, so that the field of view of the infrared temperature sensor 20 is aligned with the burner head 31 area of ​​the stove 30. The field of view of the infrared temperature sensor 20 is within the range of the burner head 31 area of ​​the stove 30, further ensuring the accuracy of temperature detection by the infrared temperature sensor 20.

[0030] In addition, the first installation specification is used to indicate the reference installation position of the fume purification equipment and the maximum horizontal offset of the fume purification equipment relative to the stove 30. The maximum horizontal offset is the allowable offset of the fume purification equipment relative to the stove 30 in any direction parallel to the plane where the stove 30 is located. Figure 3a This is a simplified positional relationship diagram of the reference installation position of an oil fume purification device provided in an embodiment of the present invention, as shown in the figure. Figure 3aAs shown, the reference installation position of the fume purification equipment can be understood as the optimal installation position between the fume purification equipment and the stove, or the standard relative installation position between the stove and the fume purification equipment. At this time, the field of view detection area of ​​the infrared temperature sensor 20 is located within the burner head 31 area of ​​the stove 30, and the center line 21 of the field of view detection area of ​​the infrared temperature sensor 20 passes precisely through the center point O of the burner head 31 area of ​​the stove 30. For example, this reference installation position may include the reference distance a (i.e., the length of line segment OD) between the center point of the burner head 31 and the wall where the fume purification equipment is installed, the reference distance b (i.e., the length of line segment CD) between the infrared temperature sensor 20 and the wall where the fume purification equipment is installed, the reference distance c (i.e., the length of line segment AB) between the infrared temperature sensor 20 and the countertop of the stove 30, and the reference offset z (i.e., the length of line segment BC) of the infrared temperature sensor 20 along the first direction X relative to the center of the corresponding burner head 31. Figure 3b This is a simplified positional diagram illustrating the maximum horizontal offset of an oil fume purification device relative to a stove, as provided in an embodiment of the present invention. Figure 3b As shown, the maximum horizontal offset of the fume purification device relative to the cooktop 30 can be understood as the maximum offset between the reference installation position of the fume purification device and the determined offset installation position on the plane parallel to the cooktop 30, or, in other words, the horizontal offset range of the cooktop and the fume purification device based on their standard relative installation positions. At this time, the field of view detection area of ​​the infrared temperature sensor 20 is located at a critical position within the burner head 31 area of ​​the cooktop 30. The maximum horizontal offset of the fume purification device relative to the cooktop 30 is the allowable offset of the fume purification device relative to the cooktop 30 in any direction parallel to the plane of the cooktop 30. For example, the maximum horizontal offset of the fume purification device relative to the cooktop 30 may include the allowable offset of the fume purification device relative to the cooktop 30 in the front-back direction and the allowable offset of the fume purification device relative to the cooktop 30 in the left-right direction.

[0031] For example, the first installation specification corresponding to the fume purification equipment to be installed can be obtained by consulting the product installation manual of the preset installation specification table. The preset installation specification table can be understood as a preset installation instruction document. It is understood that different models of fume purification equipment have different installation requirements, i.e., different installation specifications. Users or installers of the fume purification equipment can determine the reference installation position and the maximum horizontal offset relative to the stove 30 by consulting the corresponding first installation specification, so as to better guide and carry out the installation process of the stove or fume purification equipment. For example, the first installation specification corresponding to the fume purification equipment to be installed can be obtained through preset installation specification software. The preset installation specification software can be understood as a preset installation demonstration program. The form of the installation demonstration program includes, but is not limited to, text, images, audio, and video. It is understood that different models of fume purification equipment have different installation requirements, i.e., different installation specifications. Those skilled in the art can determine the reference installation position and the maximum horizontal offset relative to the stove 30 by consulting the corresponding first installation specification, so as to better guide and carry out the installation process of the stove or fume purification equipment.

[0032] Furthermore, Figures 4a-4f This is a schematic diagram showing the position of the field of view detection area of ​​the six types of infrared temperature sensors provided in this embodiment of the invention relative to the burner area of ​​the stove. Figures 4a-4f As shown, the small circle represents the field of view detection area of ​​the infrared temperature sensor 20, and the large circle represents the burner head 31 area of ​​the stove 30. A Cartesian coordinate system can be established with the center point of the field of view detection area of ​​the infrared temperature sensor 20 as the origin. The large dashed circle represents the standard position of the burner head 31 area of ​​the stove 30 when the fume purification device is in the reference installation position; at this time, the center of the large dashed circle coincides with the center of the small circle. It should also be noted that regardless of the positional relationship between the infrared temperature sensor 20 and the burner head 31 of the stove 30, when there is a horizontal offset of the fume purification device relative to the stove 30, the height and field of view of the infrared temperature sensor 20 are fixed. Therefore, the size of the field of view detection area of ​​the infrared temperature sensor 20 is fixed. For example... Figure 3a and Figure 3b The field of view detection area of ​​the infrared temperature sensor 20 shown is the same. Figure 4a The center point of the field of view detection area of ​​the infrared temperature sensor 20 shown coincides with the center point of the burner head 31 area of ​​the stove 30. That is, the center of the large circle of the dashed line coincides with the center of the large circle of the solid line, and the centers of the large circle of the dashed line, the large circle of the solid line, and the small circle coincide. At this time, it can be understood that the fume purification equipment is in the reference installation position. Figure 4a It could also be understood as Figure 3aThe corresponding top view is shown. Figure 4b The center point of the field of view detection area of ​​the infrared temperature sensor 20 shown is offset from the center point of the burner 31 area of ​​the stove 30 in the tilt direction (not the left and right direction, not the front and back direction) on the plane where the stove 30 is located. The maximum horizontal offset of the fume purification device relative to the stove 30 can be determined according to the distance between the center of the small circle and the center of the large circle of the solid line. The small circle cannot deviate outside the area of ​​the large circle of the solid line. Figure 4c and Figure 4d The center point of the field of view detection area of ​​the infrared temperature sensor 20 shown is offset from the center point of the burner 31 area of ​​the stove 30 in the left and right directions on the plane where the stove 30 is located. The maximum horizontal offset of the fume purification device relative to the stove 30 can be determined according to the distance between the center of the small circle and the center of the large circle of the solid line. The small circle cannot deviate outside the area of ​​the large circle of the solid line. Figure 4e and Figure 4f The center point of the field of view detection area of ​​the infrared temperature sensor 20 shown is offset from the center point of the burner head 31 area of ​​the stove 30 in the front-back direction on the plane where the stove 30 is located. The maximum horizontal offset of the fume purification device relative to the stove 30 can be determined according to the distance between the center of the small circle and the center of the large circle on the solid line. The small circle cannot deviate beyond the area of ​​the large circle on the solid line. Under the above horizontal offset conditions, if the small circle deviates beyond the area of ​​the large circle on the solid line, the field of view detection area of ​​the infrared temperature sensor 20 will at least partially detect the temperature of the external area of ​​the cooking pot 40 (such as the temperature of the flame or the countertop), thus causing the detected temperature to not accurately reflect the actual internal temperature of the pot 40.

[0033] The technical solution in this embodiment of the invention allows the installation method to determine the maximum horizontal offset of the fume purification device relative to the stove based on the user's actual application and installation scenarios. During the installation phase of the fume purification device, the user can independently select the relative horizontal offset between the stove and the fume purification device, achieving user-friendly installation and meeting the user's installation needs. It also ensures that the field of view detection area of ​​the infrared temperature sensor does not deviate from the burner area of ​​the stove, effectively improving the temperature measurement accuracy of the infrared temperature sensor, thereby improving the automatic control effect of the fume purification device and ensuring a good cooking experience and user comfort.

[0034] Optionally, continue to refer to Figures 4a-4f The diameter j of the furnace head area 31 satisfies: 24cm≤j≤30cm.

[0035] Specifically, the most commonly used cookware 40 in households includes woks, steamers, and frying pans. The diameter of a commonly used wok is 30cm, a steamer is 26cm, and a frying pan is 24cm. That is, the diameter of the wok > the diameter of the steamer > the diameter of the frying pan. The cookware 40 is placed on the burner head 31. The diameter j of the burner head 31 area can be determined based on the diameter of the cookware 40 frequently used by the user. For example, if the area of ​​the burner head 31 meets the temperature detection requirements of the corresponding infrared temperature sensor 20, it means that the position of the cookware 40 on the burner head 31 also meets the temperature detection requirements of the corresponding infrared temperature sensor 20.

[0036] Optionally, continue to refer to Figures 4a-4f The maximum horizontal offset t is determined based on the following parameters: the diameter f0 of the field of view detection area of ​​the infrared temperature sensor 20 when the fume purification equipment is installed on the mounting wall at the reference installation height; and the diameter j of the burner head 31 area.

[0037] Specifically, when there is a horizontal offset between the fume purification device and the stove 30, the height and field of view of the infrared temperature sensor 20 are fixed, so the size of the detection area of ​​the infrared temperature sensor 20 is fixed. Figures 4b-4f The shown positional offset scenarios demonstrate that the maximum horizontal offset of the fume purification device relative to the stove 30 is the same in any direction parallel to the plane of the stove 30. For example, the maximum horizontal offset of the fume purification device relative to the stove 30 is t = (j-f0) / 2. Figure 4c Taking this as an example, the large circle shifts from the dotted line position to the solid line position, with a maximum horizontal offset of t = j / 2 - f0 / 2 = (j - f0) / 2. Similarly, using... Figure 4e Taking this as an example, the large circle shifts from the dotted line position to the solid line position, with a maximum horizontal offset t = j / 2 - f0 / 2 = (j - f0) / 2. That is, the maximum horizontal offset t can be determined by the radius f0 / 2 of the field of view detection area of ​​the infrared temperature sensor 20 and the radius j / 2 of the burner head area. In other words, the maximum horizontal offset t of the fume purification device relative to the stove 30, t = (j - f0) / 2, can be determined by the diameter f0 of the field of view detection area of ​​the infrared temperature sensor 20 and the diameter j of the burner head area.

[0038] Optionally, Figure 5 This is a schematic diagram of the field of view detection area and field of view angle of an infrared temperature sensor provided in an embodiment of the present invention, as shown below. Figure 5As shown, when the fume purification equipment is installed on the mounting wall at the reference installation height, the diameter f0 of the field of view detection area of ​​the infrared temperature sensor is determined based on the following parameters: the field of view angle 2α0 of the infrared temperature sensor 20; and the length d of the line connecting the center of the infrared temperature sensor 20 and the corresponding burner head 31 when the fume purification equipment is installed on the mounting wall at the reference installation height.

[0039] Specifically, the diameter of the field of view detection area of ​​the infrared temperature sensor 20 is f0, and the radius of the field of view detection area of ​​the infrared temperature sensor 20 is k = f0 / 2. Taking line segment MN as one of the diameters of the field of view detection area of ​​the infrared temperature sensor 20 as an example, the field of view angle of the infrared temperature sensor 20 is 2α0, and half of the field of view angle of the infrared temperature sensor 20 is α0. When the fume purification equipment is installed on the mounting wall according to the reference installation height, k = d × tanα0 can be obtained. That is, the diameter f0 of the field of view detection area of ​​the infrared temperature sensor 20 can be determined by the field of view angle 2α0 of the infrared temperature sensor 20 and the length d of the line connecting the center of the infrared temperature sensor 20 and the center of the corresponding burner head 31, which is helpful in determining the maximum horizontal offset t. The line connecting the center of the infrared temperature sensor 20 and the center of the corresponding burner head 31 is also the field of view center line 21 of the aforementioned field of view detection area of ​​the infrared temperature sensor 20.

[0040] Further reference Figure 1 and Figure 5 When the fume purification equipment is installed on the mounting wall at the reference installation height, the length d of the line connecting the center of the infrared temperature sensor 20 and the corresponding burner head 31 is determined based on the following parameters: the field of view 2α0 of the infrared temperature sensor 20; the reference distance a between the center point of the burner head 31 and the wall where the fume purification equipment is installed; the reference distance b between the infrared temperature sensor 20 and the wall where the fume purification equipment is installed; the reference distance c between the infrared temperature sensor 20 and the countertop of the stove 30; the reference offset z of the infrared temperature sensor 20 along the first direction X relative to the center of the corresponding burner head 31; and the diameter j of the burner head 31 area; wherein, the first direction X is parallel to the line connecting the centers of the two burners 31 on the stove 30.

[0041] Among them, the reference distance a can be understood as the distance between the center point of the burner 31 corresponding to the oil fume purification equipment when it is located in the reference installation position and the mounting wall in the second direction Y; the reference distance b can be understood as the distance between the infrared temperature sensor 20 corresponding to the oil fume purification equipment when it is located in the reference installation position and the mounting wall in the second direction Y; the reference distance c can be understood as the distance between the infrared temperature sensor 20 corresponding to the oil fume purification equipment when it is located in the reference installation position and the countertop of the stove 30 in the third direction Z; and the reference offset z can be understood as the distance between the infrared temperature sensor 20 corresponding to the oil fume purification equipment when it is located in the reference installation position and the center of the corresponding burner 31 in the first direction X.

[0042] Specifically, the center point of the burner head 31 can be point O, and the reference distance a between the center point of the burner head 31 and the wall where the fume purification equipment is installed can be the length of the line segment OD. That is, draw a perpendicular line through point O to the wall where the fume purification equipment is installed, and the intersection of this perpendicular line and the wall where the fume purification equipment is installed is point D. In other words, the line segment OD is perpendicular to the wall where the fume purification equipment is installed.

[0043] The infrared temperature sensor 20 can be point A, and its vertical projection point on the cooktop 30 can be point B. The reference distance c between the infrared temperature sensor 20 and the cooktop 30 can be a line segment AB, which can also be understood as the reference installation height of the fume purification device. Furthermore, the reference offset z of the infrared temperature sensor 20 along the first direction X relative to the center of its corresponding burner head 31 can be line segment BC, meaning that line segment BC is parallel to the first direction X and parallel to the direction of the line connecting the centers of the two burners 31 on the cooktop 30.

[0044] Infrared temperature sensor 20 can be point A. The vertical projection point of infrared temperature sensor 20 onto the countertop of stove 30 can be point B. Draw a perpendicular line from point O to the extension of line segment OD, with point C as the intersection point. Line segment BC is perpendicular to line segment OC (or, line segment BC is perpendicular to line segments CD and OD). The reference distance b between infrared temperature sensor 20 and the wall where the fume purification equipment is installed can be line segment CD, and line segment CD is perpendicular to the wall where the fume purification equipment is installed.

[0045] Infrared temperature sensor 20 can be point A, the center point of burner head 31 can be point O, and the length d of the line connecting infrared temperature sensor 20 and the center of corresponding burner head 31 can be line segment AO. This allows us to obtain...

[0046] Furthermore, based on the field of view 2α0 of the infrared temperature sensor 20, and the length d of the line connecting the center of the infrared temperature sensor 20 and the corresponding burner head 31 when the fume purification equipment is installed on the mounting wall at the reference installation height, the diameter f0 of the infrared temperature sensor's field of view detection area can be determined. That is,

[0047] Optionally, continue to refer to Figure 1 , Figures 4a-4f and Figure 5 The maximum horizontal offset t satisfies: t>0; where: α0 is half of the field of view of the infrared temperature sensor 20; a is the reference distance between the center point of the burner 31 and the wall where the fume purification equipment is installed; b is the reference distance between the infrared temperature sensor 20 and the wall where the fume purification equipment is installed; c is the reference distance between the infrared temperature sensor 20 and the countertop of the stove 30; and z is the reference offset of the infrared temperature sensor 20 relative to the center of the burner 31 along the first direction X; and the diameter j of the burner 31 area; where the first direction X is parallel to the line connecting the centers of the two burners 31 on the stove 30.

[0048] Specifically, when the fume purification equipment is installed on the wall at the reference installation height, the maximum horizontal offset t can be determined based on the diameter f0 of the field of view detection area of ​​the infrared temperature sensor 20 and the diameter j of the burner head area. That is,

[0049] Based on this, continue to refer to Figure 1 This fume purification device is a top-mounted range hood. If a user frequently uses woks, steamers, and frying pans, the diameter j of area 31 on the burner can be calculated based on the frying pan's diameter of 24cm. In this case, both the wok and steamer will meet the maximum horizontal offset t range during use. For example, a = 275mm = 27.5cm, b = 510mm = 51cm, c = 760mm = 76cm, z = 210mm = 21cm, 2α0 = 15°, and the maximum horizontal offset is... That is, in any direction parallel to the plane of the stove 30, the maximum horizontal offset of the fume purification device relative to the stove 30 is 1.17cm.

[0050] If a user uses a frying pan relatively infrequently and frequently uses a wok and steamer, the frying pan can be omitted. In this case, the diameter j of area 31 on the stove can be calculated based on the diameter of the steamer (26cm). In this scenario, the wok will always meet the maximum horizontal offset t range during use. For example, a = 275mm = 27.5cm, b = 510mm = 51cm, c = 760mm = 76cm, z = 210mm = 21cm, 2α0 = 15°. The maximum horizontal offset in this case is... That is, in any direction parallel to the plane of the stove 30, the maximum horizontal offset of the fume purification device relative to the stove 30 is 2.17cm.

[0051] If a user uses frying pans and steamers relatively infrequently and woks more often, then the frying pan and steamer can be omitted. In this case, the diameter j of area 31 on the stove can be calculated based on the wok's diameter of 30cm. For example, a = 275mm = 27.5cm, b = 510mm = 51cm, c = 760mm = 76cm, z = 210mm = 21cm, 2α0 = 15°, where the maximum horizontal offset is... That is, in any direction parallel to the plane of the stove 30, the maximum horizontal offset of the fume purification device relative to the stove 30 is 4.17cm.

[0052] Optionally, continue to refer to Figures 4a-4f The maximum horizontal offset t includes a first offset u and a second offset v. The first offset u is the allowable offset of the fume purification device relative to the stove 30 in the first direction X, and the second offset v is the allowable offset of the fume purification device relative to the stove 30 in the second direction Y; where the second direction Y is the direction perpendicular to the mounting wall; the first offset u satisfies: u > 0; the second offset v satisfies: v>0; where α is the angle between the projection of the fume purification device onto the plane of the stove 30 and the line connecting the center of the burner head 31 of the stove 30 and the second direction Y.

[0053] Specifically, the first direction X is parallel to the line connecting the centers of the two burners 31 on the stove 30, and the second direction Y is perpendicular to the mounting wall. The first offset u can be understood as the component of the maximum horizontal offset t allowed in the first direction X (left-right offset), i.e., u = sinα × t. The second offset v can be understood as the component of the maximum horizontal offset t allowed in the second direction Y (front-back offset), i.e., u = cosα × t. For example, Figure 4c and Figure 4d In this context, α can be understood as 90° or -90°. Figure 4e and Figure 4fIn this case, α can be understood as 0° or 180°.

[0054] Based on this, continue to refer to Figure 1 The fume purification device is a top-mounted range hood. If a user frequently uses woks, steamers, and frying pans, the maximum horizontal offset of the fume purification device relative to the cooktop 30 in any direction parallel to the plane of the cooktop 30 is 1.17 cm. For example, if α = 30°, the first offset u = sin30° × 1.17 = 0.59 cm, and the second offset v = cos30° × 1.17 = 1.01 cm. That is, in the first direction X, the maximum horizontal offset of the fume purification device relative to the cooktop 30 is 0.59 cm, and in the second direction Y, the maximum horizontal offset of the fume purification device relative to the cooktop 30 is 1.01 cm.

[0055] If a user rarely uses a frying pan and frequently uses a wok and steamer, the frying pan can be discarded. In this case, the maximum horizontal offset of the fume purification device relative to the stove 30 in any direction parallel to the plane of the stove 30 is 2.17 cm. For example, α = 30°, then the first offset u = sin30° × 2.17 = 1.09 cm, and the second offset v = cos30° × 2.17 = 1.88 cm. That is, in the first direction X, the maximum horizontal offset of the fume purification device relative to the stove 30 is 1.09 cm, and in the second direction Y, the maximum horizontal offset of the fume purification device relative to the stove 30 is 1.88 cm.

[0056] If a user uses frying pans and steamers less frequently and woks more often, they can omit the frying pans and steamers. In this case, the maximum horizontal offset of the fume purification device relative to the stove 30 in any direction parallel to the plane of the stove 30 is 4.17 cm. For example, α = 30°, then the first offset u = sin30° × 4.17 = 2.09 cm, and the second offset v = cos30° × 4.17 = 1.63 cm. That is, in the first direction X, the maximum horizontal offset of the fume purification device relative to the stove 30 is 2.09 cm, and in the second direction Y, the maximum horizontal offset of the fume purification device relative to the stove 30 is 1.63 cm.

[0057] The above description of this embodiment only discusses the correspondence between the infrared temperature sensor 20 and the corresponding burner head 31, but does not specify the number of infrared temperature sensors 20. Optionally, please refer to... Figure 1The stove 30 is equipped with two burners 31, and the smoke hood 10 is equipped with two infrared temperature sensors 20. The two infrared temperature sensors 20 are respectively facing the two burners 31. The two infrared temperature sensors 20 are spaced apart in the first direction X. The first direction X is parallel to the line connecting the centers of the two burners 21.

[0058] Specifically, Figure 1 The fume purification device shown is a top-mounted range hood. The two infrared temperature sensors 20 in this fume purification device can be understood as a separate topology structure. That is, the infrared temperature sensor 20 on the left is located directly above the corresponding burner 31 on the left and near the left outer side. The field of view of the infrared temperature sensor 20 on the left is aligned with the area of ​​the burner 31 on the left, and the infrared temperature sensor 20 on the right is located directly above the corresponding burner 31 on the right and near the right outer side. The field of view of the infrared temperature sensor 20 on the right is aligned with the area of ​​the burner 31 on the right, and the infrared temperature sensor 20 on the right is aligned with the area of ​​the burner 31 on the right, and the infrared temperature sensor 20 on the right is aligned with the area of ​​the burner 31 on the right, and the infrared temperature sensor 20 on the right is aligned with the area of ​​the burner 31 on the right.

[0059] Optionally, Figure 6 This is a schematic diagram of another oil fume purification device and stove provided in an embodiment of the present invention, as shown below. Figure 6 As shown, the stove 30 is equipped with two burners 31, and the smoke hood 10 is equipped with two infrared temperature sensors 20. The two infrared temperature sensors 20 are respectively facing the two burners 31. The two infrared temperature sensors 20 are arranged adjacent to each other and are located in the middle of the two burners 31 in the first direction X. The first direction X is parallel to the line connecting the centers of the two burners 31.

[0060] Specifically, Figure 6 The fume purification device shown is a top-mounted range hood. The distribution of the two infrared temperature sensors 20 in this fume purification device can be understood as a centralized topology structure. That is, the infrared temperature sensor 20 on the left and the infrared temperature sensor 20 on the right are placed together, both located directly above the center of the stove 30 and slightly to the outside. The field of view of the infrared temperature sensor 20 on the left is aligned with the burner 31 area on the left, and the infrared temperature sensor 20 on the right is aligned with the burner 31 area on the right, and the infrared temperature sensor 20 on the right is aligned with the burner 31 area on the right, and the infrared temperature sensor 20 on the right is aligned with the burner 31 area on the right.

[0061] Optionally, continue to refer to Figure 6 The reference offset z of the infrared temperature sensor 20 along the first direction X relative to the center of the corresponding burner head 31 is determined by the center distance e of the two burner heads 31.

[0062] Specifically, the two infrared temperature sensors 20 are arranged close to each other and are located in the middle of the two burners 31 in the first direction X. That is, the reference offset z of each infrared temperature sensor 20 relative to the center of the corresponding burner 31 along the first direction X can be approximately considered to be equal to half of the center distance e of the two burners 31, that is, z = e / 2.

[0063] Optionally, continue to refer to Figure 6 The maximum horizontal offset t satisfies: t > 0; where: a is the reference distance between the center point of the burner 31 and the wall where the fume purification equipment is installed; b is the reference distance between the infrared temperature sensor 20 and the wall where the fume purification equipment is installed; c is the reference distance between the infrared temperature sensor 20 and the countertop of the stove 30; and e is the distance between the centers of the two burners 31.

[0064] Specifically, the infrared temperature sensor 20 can be point A, the vertical projection point of the infrared temperature sensor 20 on the countertop of the stove 30 can be point B, and the reference distance c between the infrared temperature sensor 20 and the countertop of the stove 30 can be a line segment AB. The line segment AB can also be understood as the reference installation height of the fume purification equipment.

[0065] Infrared temperature sensor 20 can be point A. The vertical projection point of infrared temperature sensor 20 onto the cooktop 30 can be point B. A perpendicular line is drawn from point B to the wall where the fume purification device is installed. The intersection of this perpendicular line and the wall where the fume purification device is installed is point D. That is, line segment BD is perpendicular to the wall where the fume purification device is installed. The center point of burner head 31 can be point O. A perpendicular line is drawn from point O to line segment BD, with point C being the intersection point. Line segment OC is perpendicular to line segment BD (or, line segment OC is perpendicular to line segments BC and CD). The reference distance b between infrared temperature sensor 20 and the wall where the fume purification device is installed can be line segment BD. The reference distance a between the center point of burner head 31 and the wall where the fume purification device is installed can be line segment CD. The distance e between the two burners 31 can be twice the distance OC between the two burners 31, and the distance OC between the two burners 31 is also the reference offset z of the infrared temperature sensor 20 along the first direction X relative to the center of the corresponding burner 31. The distance OC between the two burners 31 is equal to half the distance e between the centers of the two burners 31.

[0066] Infrared temperature sensor 20 can be point A, the center point of burner head 31 can be point O, and the length d of the line connecting infrared temperature sensor 20 and the center of corresponding burner head 31 can be line segment AO. This allows us to obtain... At this time, b > a, that is, the infrared temperature sensor 20 is on the outside relative to the center point of the burner head 31.

[0067] Furthermore, based on the field of view 2α0 of the infrared temperature sensor 20, and the length d of the line connecting the center of the infrared temperature sensor 20 and the corresponding burner head 31 when the fume purification equipment is installed on the mounting wall at the reference installation height, the diameter f0 of the infrared temperature sensor's field of view detection area can be determined. That is,

[0068] Thus, when the fume purification equipment is installed on the wall at the reference installation height, the maximum horizontal offset t can be determined based on the diameter f0 of the field of view detection area of ​​the infrared temperature sensor 20 and the diameter j of the burner head area 31. That is,

[0069] Based on this, continue to refer to Figure 6 This fume purification device is a top-mounted range hood. If the user frequently uses woks, steamers, and frying pans, the diameter j of area 31 on the burner can be calculated based on the frying pan's diameter of 24cm. In this case, both the wok and steamer will meet the maximum horizontal offset t range during use. For example, a = 275mm = 27.5cm, b = 510mm = 51cm, c = 760mm = 76cm, e = 460mm = 46cm, 2α0 = 15°, and the maximum horizontal offset is... That is, in any direction parallel to the plane of the stove 30, the maximum horizontal offset of the fume purification device relative to the stove 30 is 1.1 cm. And, exemplarily, α = 30°, in which case the first offset u = sin30° × 1.1 = 0.55 cm, and the second offset v = cos30° × 1.1 = 0.95 cm. That is, in the first direction X, the maximum horizontal offset of the fume purification device relative to the stove 30 is 0.55 cm, and in the second direction Y, the maximum horizontal offset of the fume purification device relative to the stove 30 is 0.95 cm.

[0070] If a user uses a frying pan relatively infrequently and frequently uses a wok and steamer, the frying pan can be omitted. In this case, the diameter j of area 31 on the stove can be calculated based on the diameter of the steamer (26cm). The wok will then satisfy the maximum horizontal offset t range during use. For example, a = 275mm = 27.5cm, b = 510mm = 51cm, c = 760mm = 76cm, e = 460mm = 46cm, 2α0 = 15°. The maximum horizontal offset in this case is... That is, in any direction parallel to the plane of the stove 30, the maximum horizontal offset of the fume purification device relative to the stove 30 is 2.1 cm. And, exemplarily, α = 30°, in which case the first offset u = sin30° × 2.1 = 1.05 cm, and the second offset v = cos30° × 2.1 = 1.82 cm. That is, in the first direction X, the maximum horizontal offset of the fume purification device relative to the stove 30 is 1.05 cm, and in the second direction Y, the maximum horizontal offset of the fume purification device relative to the stove 30 is 1.82 cm.

[0071] If a user uses frying pans and steamers relatively infrequently and woks more often, then the frying pan and steamer can be omitted. In this case, the diameter j of area 31 on the stove can be calculated based on the wok's diameter of 30cm. For example, a = 275mm = 27.5cm, b = 510mm = 51cm, c = 760mm = 76cm, e = 460mm = 46cm, 2α0 = 15°, where the maximum horizontal offset is... That is, in any direction parallel to the plane of the stove 30, the maximum horizontal offset of the fume purification device relative to the stove 30 is 4.1 cm. And, exemplarily, α = 30°, in which case the first offset u = sin30° × 4.1 = 2.05 cm, and the second offset v = cos30° × 4.1 = 3.55 cm. That is, in the first direction X, the maximum horizontal offset of the fume purification device relative to the stove 30 is 2.05 cm, and in the second direction Y, the maximum horizontal offset of the fume purification device relative to the stove 30 is 3.55 cm.

[0072] Optionally, Figure 7 This is a structural schematic diagram of another oil fume purification device and stove provided in an embodiment of the present invention, as shown below. Figure 7 As shown, the maximum horizontal offset t satisfies: t > 0; where: a is the reference distance between the center point of the burner 31 and the wall where the fume purification equipment is installed; b is the reference distance between the infrared temperature sensor 20 and the wall where the fume purification equipment is installed; c is the reference distance between the infrared temperature sensor 20 and the countertop of the stove 30; and e is the distance between the centers of the two burners 31.

[0073] Specifically, the infrared temperature sensor 20 can be point A, the vertical projection point of the infrared temperature sensor 20 on the countertop of the stove 30 can be point B, and the reference distance c between the infrared temperature sensor 20 and the countertop of the stove 30 can be a line segment AB. The line segment AB can also be understood as the reference installation height of the fume purification equipment.

[0074] Infrared temperature sensor 20 can be point A. The vertical projection point of infrared temperature sensor 20 onto the cooktop 30 can be point B. A perpendicular line is drawn from point B to the wall where the fume purification device is installed. The intersection of this perpendicular line and the wall where the fume purification device is installed is point D. That is, line segment BD is perpendicular to the wall where the fume purification device is installed. The center point of burner head 31 can be point O. A perpendicular line is drawn from point O to the extension of line segment BD, with point C being the intersection point. Line segment OC is perpendicular to line segment BD (or, line segment OC is perpendicular to line segments BC and CD). The reference distance b between infrared temperature sensor 20 and the wall where the fume purification device is installed can be line segment BD. The reference distance a between the center point of burner head 31 and the wall where the fume purification device is installed can be line segment CD. The distance e between the two burners 31 can be a line segment OC, and the line segment OC is also the reference offset z of the infrared temperature sensor 20 along the first direction X relative to the center of the corresponding burner 31. The line segment OC is equal to half of the center distance e between the two burners 31.

[0075] Infrared temperature sensor 20 can be point A, the center point of burner head 31 can be point O, and the length d of the line connecting infrared temperature sensor 20 and the center of corresponding burner head 31 can be line segment AO. This allows us to obtain... At this time, a > b, that is, the infrared temperature sensor 20 is on the inside relative to the center point of the burner head 31.

[0076] Furthermore, based on the field of view 2α0 of the infrared temperature sensor 20, and the length d of the line connecting the center of the infrared temperature sensor 20 and the corresponding burner head 31 when the fume purification equipment is installed on the mounting wall at the reference installation height, the diameter f0 of the infrared temperature sensor's field of view detection area can be determined. That is,

[0077] Thus, when the fume purification equipment is installed on the wall at the reference installation height, the maximum horizontal offset t can be determined based on the diameter f0 of the field of view detection area of ​​the infrared temperature sensor 20 and the diameter j of the burner head area 31. That is,

[0078] Based on this, continue to refer to Figure 7 This fume purification device is a side-suction range hood. If the user frequently uses woks, steamers, and frying pans, the diameter j of the burner area 31 can be calculated based on the frying pan's diameter of 24cm. In this case, both the wok and steamer will meet the maximum horizontal offset t range during use. For example, a = 275mm = 27.5cm, b = 100mm = 10cm, c = 430mm = 43cm, e = 460mm = 46cm, 2α0 = 15°, and the maximum horizontal offset is... That is, in any direction parallel to the plane of the stove 30, the maximum horizontal offset of the fume purification device relative to the stove 30 is 5.18 cm. And, exemplarily, α = 30°, in which case the first offset u = sin30° × 5.18 = 2.59 cm, and the second offset v = cos30° × 5.18 = 4.49 cm. That is, in the first direction X, the maximum horizontal offset of the fume purification device relative to the stove 30 is 2.59 cm, and in the second direction Y, the maximum horizontal offset of the fume purification device relative to the stove 30 is 4.49 cm.

[0079] If a user uses a frying pan relatively infrequently and frequently uses a wok and steamer, the frying pan can be omitted. In this case, the diameter j of area 31 on the stove can be calculated based on the steamer's diameter of 26cm. In this scenario, the wok will always meet the maximum horizontal offset t range during use. For example, a = 275mm = 27.5cm, b = 100mm = 10cm, c = 430mm = 43cm, e = 460mm = 46cm, 2α0 = 15°. The maximum horizontal offset in this case is... That is, in any direction parallel to the plane of the stove 30, the maximum horizontal offset of the fume purification device relative to the stove 30 is 6.18 cm. And, exemplarily, α = 30°, in which case the first offset u = sin30° × 6.18 = 3.09 cm, and the second offset v = cos30° × 6.18 = 5.35 cm. That is, in the first direction X, the maximum horizontal offset of the fume purification device relative to the stove 30 is 3.09 cm, and in the second direction Y, the maximum horizontal offset of the fume purification device relative to the stove 30 is 5.35 cm.

[0080] If a user uses frying pans and steamers relatively infrequently and woks more often, then the frying pan and steamer can be omitted. In this case, the diameter j of area 31 on the stove can be calculated based on the wok's diameter of 30cm. For example, a = 275mm = 27.5cm, b = 100mm = 10cm, c = 430mm = 43cm, e = 460mm = 46cm, 2α0 = 15°, where the maximum horizontal offset is... That is, in any direction parallel to the plane of the stove 30, the maximum horizontal offset of the fume purification device relative to the stove 30 is 8.18 cm. And, exemplarily, α = 30°, in which case the first offset u = sin30° × 8.18 = 4.09 cm, and the second offset v = cos30° × 8.18 = 7.08 cm. That is, in the first direction X, the maximum horizontal offset of the fume purification device relative to the stove 30 is 4.09 cm, and in the second direction Y, the maximum horizontal offset of the fume purification device relative to the stove 30 is 7.08 cm.

[0081] Optionally, Figure 8 This is a structural schematic diagram of another oil fume purification device and stove provided in an embodiment of the present invention, as shown below. Figure 8 As shown, the maximum horizontal offset t satisfies:

[0082] , t>0; where: a is the reference distance between the center point of the burner 31 and the wall where the fume purification equipment is installed; b is the reference distance between the infrared temperature sensor 20 and the wall where the fume purification equipment is installed; c is the reference distance between the infrared temperature sensor 20 and the countertop of the stove 30; and e is the distance between the centers of the two burners 31.

[0083] Specifically, the infrared temperature sensor 20 can be point A, the vertical projection point of the infrared temperature sensor 20 on the countertop of the stove 30 can be point B, and the reference distance c between the infrared temperature sensor 20 and the countertop of the stove 30 can be a line segment AB. The line segment AB can also be understood as the reference installation height of the fume purification equipment.

[0084] Infrared temperature sensor 20 can be point A. The vertical projection point of infrared temperature sensor 20 onto the cooktop 30 can be point B. A perpendicular line is drawn from point B to the wall where the fume purification device is installed. The intersection of this perpendicular line and the wall where the fume purification device is installed is point D. That is, line segment BD is perpendicular to the wall where the fume purification device is installed. The center point of burner head 31 can be point O. A perpendicular line is drawn from point O to the extension of line segment BD, with point C being the intersection point. Line segment OC is perpendicular to line segment BD (or, line segment OC is perpendicular to line segments BC and CD). The reference distance b between infrared temperature sensor 20 and the wall where the fume purification device is installed can be line segment BD. The reference distance a between the center point of burner head 31 and the wall where the fume purification device is installed can be line segment CD. The distance e between the two burners 31 can be a line segment OC, and the line segment OC is also the reference offset z of the infrared temperature sensor 20 along the first direction X relative to the center of the corresponding burner 31. The line segment OC is equal to half of the center distance e between the two burners 31.

[0085] Infrared temperature sensor 20 can be point A, the center point of burner head 31 can be point O, and the length d of the line connecting infrared temperature sensor 20 and the center of corresponding burner head 31 can be line segment AO. This allows us to obtain... At this time, a > b, that is, the infrared temperature sensor 20 is on the inside relative to the center point of the burner head 31.

[0086] Furthermore, based on the field of view 2α0 of the infrared temperature sensor 20, and the length d of the line connecting the center of the infrared temperature sensor 20 and the corresponding burner head 31 when the fume purification equipment is installed on the mounting wall at the reference installation height, the diameter f0 of the infrared temperature sensor's field of view detection area can be determined. That is,

[0087] Thus, when the fume purification equipment is installed on the wall at the reference installation height, the maximum horizontal offset t can be determined based on the diameter f0 of the field of view detection area of ​​the infrared temperature sensor 20 and the diameter j of the burner head area 31. That is,

[0088] Based on this, continue to refer to Figure 8 This fume purification device is an integrated range hood and stove unit. If a user frequently uses woks, steamers, and frying pans, the diameter j of the burner head area 31 can be calculated based on the frying pan's diameter of 24cm. In this case, both the wok and steamer will meet the maximum horizontal offset t range during use. For example, a = 275mm = 27.5cm, b = 100mm = 10cm, c = 430mm = 43cm, e = 460mm = 46cm, 2α0 = 15°, and the maximum horizontal offset is... That is, in any direction parallel to the plane of the stove 30, the maximum horizontal offset of the fume purification device relative to the stove 30 is 5.18 cm. And, exemplarily, α = 30°, in which case the first offset u = sin30° × 5.18 = 2.59 cm, and the second offset v = cos30° × 5.18 = 4.49 cm. That is, in the first direction X, the maximum horizontal offset of the fume purification device relative to the stove 30 is 2.59 cm, and in the second direction Y, the maximum horizontal offset of the fume purification device relative to the stove 30 is 4.49 cm.

[0089] If a user uses a frying pan relatively infrequently and frequently uses a wok and steamer, the frying pan can be omitted. In this case, the diameter j of area 31 on the stove can be calculated based on the steamer's diameter of 26cm. In this scenario, the wok will always meet the maximum horizontal offset t range during use. For example, a = 275mm = 27.5cm, b = 100mm = 10cm, c = 430mm = 43cm, e = 460mm = 46cm, 2α0 = 15°. The maximum horizontal offset in this case is... That is, in any direction parallel to the plane of the stove 30, the maximum horizontal offset of the fume purification device relative to the stove 30 is 6.18 cm. And, exemplarily, α = 30°, in which case the first offset u = sin30° × 6.18 = 3.09 cm, and the second offset v = cos30° × 6.18 = 5.35 cm. That is, in the first direction X, the maximum horizontal offset of the fume purification device relative to the stove 30 is 3.09 cm, and in the second direction Y, the maximum horizontal offset of the fume purification device relative to the stove 30 is 5.35 cm.

[0090] If a user uses frying pans and steamers relatively infrequently and woks more often, then the frying pan and steamer can be omitted. In this case, the diameter j of area 31 on the stove can be calculated based on the wok's diameter of 30cm. For example, a = 275mm = 27.5cm, b = 100mm = 10cm, c = 430mm = 43cm, e = 460mm = 46cm, 2α0 = 15°, where the maximum horizontal offset is... That is, in any direction parallel to the plane of the stove 30, the maximum horizontal offset of the fume purification device relative to the stove 30 is 8.18 cm. And, exemplarily, α = 30°, in which case the first offset u = sin30° × 8.18 = 4.09 cm, and the second offset v = cos30° × 8.18 = 7.08 cm. That is, in the first direction X, the maximum horizontal offset of the fume purification device relative to the stove 30 is 4.09 cm, and in the second direction Y, the maximum horizontal offset of the fume purification device relative to the stove 30 is 7.08 cm.

[0091] Optionally, continue to refer to Figure 1 , Figure 6 , Figure 7 and Figure 8 The infrared temperature sensor 20 is a thermopile type infrared temperature sensor.

[0092] Specifically, a thermopile-type infrared temperature sensor can receive the infrared radiation energy emitted by an object, convert it into a voltage signal, and then the internal MCU processes and calibrates the signal through algorithms to finally convert the voltage signal into the object's temperature value. The thermopile-type infrared temperature sensor consists of a heat-absorbing region (hot end), a silicon substrate (cold end), a thin film, and an outer package. The working principle of the thermopile-type infrared temperature sensor is similar to that of a conventional thermocouple, based on the Seebeck effect (thermal potential effect). Multiple thermocouple junctions are deposited on the silicon substrate, and these junctions are connected in series to form a thermal sensing channel. A very thin film, formed by etching, provides thermal isolation between the hot and cold ends. The infrared absorption region is combined with the hot end to raise its temperature, thus creating a thermoelectric potential, which ultimately outputs a voltage signal.

[0093] The specific embodiments described above do not constitute a limitation on the scope of protection of this invention. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this invention should be included within the scope of protection of this invention.

Claims

1. A method for installing an oil fume purification device, characterized in that, The fume purification device includes a fume hood and an infrared temperature sensor; the fume hood is installed above the stove; the infrared temperature sensor is installed on the side of the fume hood facing the burner of the stove and is positioned towards the burner, and the field of view of the infrared temperature sensor is aligned with the burner area to detect the temperature near the corresponding burner area. The installation method includes: The installation position of the fume purification equipment on the corresponding mounting wall is determined according to the first installation specification, so as to install the fume purification equipment on the mounting wall. In the aforementioned installation position, the infrared temperature sensor is positioned facing the burner head, such that the field of view detection area of ​​the infrared temperature sensor is aligned with the burner head area, and the field of view detection area is located within the range of the burner head area. The first installation specification is used to indicate the reference installation position of the fume purification device and the maximum horizontal offset relative to the stove. The maximum horizontal offset is the allowable offset of the fume purification device relative to the stove in any direction parallel to the plane of the stove.

2. The installation method according to claim 1, characterized in that, The diameter j of the furnace head area satisfies: 24cm≤j≤30cm.

3. The installation method according to claim 1, characterized in that, The maximum horizontal offset t is determined based on the following parameters: When the fume purification equipment is installed on the mounting wall at the reference installation height, the diameter f0 of the field of view detection area of ​​the infrared temperature sensor; and, The diameter j of the furnace head area.

4. The installation method according to claim 3, characterized in that, When the fume purification equipment is installed on the mounting wall at the reference installation height, the diameter f0 of the field of view detection area of ​​the infrared temperature sensor is determined based on the following parameters: The field of view 2α0 of the infrared temperature sensor; and, When the fume purification equipment is installed on the mounting wall at the reference installation height, the length d of the line connecting the infrared temperature sensor and the center of the corresponding burner head is specified.

5. The installation method according to claim 4, characterized in that, When the fume purification equipment is installed on the mounting wall at the reference installation height, the length d of the line connecting the infrared temperature sensor and the center of the corresponding burner head is determined based on the following parameters: The field of view of the infrared temperature sensor is 2α0; The reference distance 'a' between the center point of the burner head and the wall on which the fume purification equipment is installed; The reference distance b between the infrared temperature sensor and the wall on which the fume purification equipment is installed; The reference distance c between the infrared temperature sensor and the countertop of the stove; The infrared temperature sensor is offset by a reference amount z along a first direction relative to the center of the corresponding furnace head; and, The diameter j of the furnace head area; The first direction is parallel to the line connecting the centers of the two burners on the stove.

6. The installation method according to claim 3, characterized in that, The maximum horizontal offset t satisfies: in: α0 is half of the field of view of the infrared temperature sensor; a is the reference distance between the center point of the burner head and the wall where the fume purification equipment is installed; b is the reference distance between the infrared temperature sensor and the wall where the fume purification equipment is installed; c is the reference distance between the infrared temperature sensor and the countertop of the stove; and, z is the reference offset of the infrared temperature sensor along the first direction relative to the center of the corresponding furnace head; and, The diameter j of the furnace head area; The first direction is parallel to the line connecting the centers of the two burners on the stove.

7. The installation method according to claim 6, characterized in that, The maximum horizontal offset includes a first offset u and a second offset v, where the first offset u is the allowable offset of the fume purification device relative to the stove in the first direction, and the second offset v is the allowable offset of the fume purification device relative to the stove in the second direction. Wherein, the second direction is the direction perpendicular to the mounting wall surface; The first offset u satisfies: The second offset v satisfies: Wherein, α is the angle between the projection of the fume purification device onto the plane of the stove and the line connecting the center of the stove's burner head and the second direction.

8. The installation method according to claim 3, characterized in that, The stove is equipped with two burners, and the smoke hood is equipped with two infrared temperature sensors, with the two infrared temperature sensors facing the two burners respectively. The two infrared temperature sensors are arranged adjacent to each other and are both located in the middle of the two burners in a first direction; wherein, the first direction is parallel to the line connecting the centers of the two burners.

9. The installation method according to claim 8, characterized in that, The reference offset z of the infrared temperature sensor along the first direction relative to the center of the corresponding burner head is determined by the center distance e between the two burner heads.

10. The installation method according to claim 9, characterized in that, The maximum horizontal offset t satisfies: in: a is the reference distance between the center point of the burner head and the wall where the fume purification equipment is installed; b is the reference distance between the infrared temperature sensor and the wall where the fume purification equipment is installed; c is the reference distance between the infrared temperature sensor and the countertop of the stove; and, e is the distance between the centers of the two burners.

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