Color sensing devices and kitchen appliances

Abstract

The present invention discloses a color sensing device and a kitchen appliance. The color sensing device includes: a circuit board, including a board body, a color sensor, and a matching portion, wherein the color sensor is mounted on the board body, and the matching portion is located on the board body; a front cover, including a first cover body, an abutting portion, a connecting protrusion, and a first connecting portion provided on the first cover body, wherein the abutting portion and the connecting protrusion are connected to a side of the first cover body close to the board body, the abutting portion abuts against a side of the board body close to the first cover body, and the connecting protrusion is connected in a matching manner; a rear cover, including a second cover body and a second connecting portion, wherein the second connecting portion is provided on the second cover body, and the second connecting portion is connected in a matching manner with the first connecting portion. The present invention realizes a detachable connection between the front cover and the circuit board through the matching connection between the connecting protrusion and the matching portion, and realizes a detachable connection between the front cover and the rear cover through the matching connection between the first connecting portion and the second connecting portion, thereby facilitating the user to clean and repair the color sensing device.

Description

Technical Field

[0001] The present invention relates to the technical field of household appliances, and in particular to a color sensing device and a kitchen appliance. Background Art

[0002] In the color sensor device used in kitchen appliances, the color sensor device is very easy to be contaminated. Therefore, the color sensor device needs to be disassembled and cleaned regularly to ensure that the color sensor device does not reduce the detection accuracy due to dirt.

[0003] However, the existing color sensor device is inconvenient to disassemble, so that users cannot conveniently clean the color sensor device. Summary of the Invention

[0004] The invention provides a color sensor and a kitchen appliance.

[0005] The color sensing device according to the embodiment of the present invention includes:

[0006] A circuit board, comprising a board body, a color sensor, and a matching portion, wherein the color sensor is mounted on the board body, and the matching portion is located on the board body;

[0007] The front cover comprises a first cover body, an abutting portion, a connecting protrusion, and a first connecting portion provided on the first cover body, the abutting portion and the connecting protrusion being connected to a side of the first cover body close to the plate body, the abutting portion abutting against a side of the plate body close to the first cover body, the connecting protrusion being matingly connected with the mating portion, the abutting portion and the connecting protrusion jointly clamping the plate body, so that the front cover and the plate body are detachably connected;

[0008] The back cover includes a second cover body and a second connecting portion. The second connecting portion is provided on the second cover body. The second connecting portion is cooperatively connected with the first connecting portion to realize a detachable connection between the front cover and the back cover.

[0009] In some embodiments, the connecting protrusion includes a connecting section and a snap-on end, the connecting section extends in a direction close to the plate body, one end of the connecting section away from the plate body is connected to the first cover body, and the other end of the connecting section is connected to the snap-on end, and the snap-on end abuts against the side of the plate body away from the first cover body.

[0010] In certain embodiments, the connecting protrusion is provided along the periphery of the plate body, the periphery of the plate body abuts against the clamping end, and the periphery of the plate body forms the fitting portion.

[0011] In some embodiments, a guiding slope is provided on a side of the clamping end away from the connecting section to guide the matching portion to abut against the clamping end.

[0012] In some embodiments, the first cover is provided with a first through hole;

[0013] The abutment portion is arranged in an annular shape and passes through the first through hole. One end of the abutment portion located in the first cover body is provided with a first abutment ring protruding outward. The first abutment ring abuts against the inner surface of the first cover body. The abutment portion is arranged around the color sensor.

[0014] In some embodiments, a matching groove is formed on a side of the first cover body close to the first abutting ring and / or on an upper surface of the first abutting ring;

[0015] The front cover further includes a first sealing ring, which is installed in the matching groove. The inner surface of the first cover body abuts against the upper surface of the first abutting ring through the first sealing ring.

[0016] In some embodiments, the plate body is provided with a matching hole;

[0017] An abutment protrusion is provided at one end of the abutment portion located inside the first cover body. The abutment protrusion extends in a direction away from the first cover body. The abutment protrusion passes through the matching hole. The abutment protrusion located outside the plate body abuts against a side of the plate body away from the first cover body.

[0018] In some embodiments, a second abutment ring is provided inwardly protruding from one end of the abutment portion located outside the first cover body;

[0019] The front cover further includes a lens and a fixing ring. The fixing ring is located in the abutting portion. The edge of the lens is clamped between the second abutting ring and the fixing ring. The lens is located above the color sensor.

[0020] In some embodiments, the front cover further includes a second sealing ring, and the fixing ring abuts against the edge of the lens through the second sealing ring.

[0021] In some embodiments, the second connecting portion includes a snap-fitting protrusion extending toward the periphery of the first cover body, and the first connecting portion includes a snap-fitting groove formed on the periphery of the first cover body, and the snap-fitting groove is cooperatively connected with the snap-fitting protrusion.

[0022] In some embodiments, the circuit board further includes a light source, and the light source and the color sensor are mounted on the same side of the board.

[0023] The present invention further provides a kitchen appliance, comprising: a body, and a color sensing device according to any one of the above embodiments, wherein the color sensing device is installed on the body.

[0024] The color sensing device of the embodiment of the present invention is provided with a mating portion on the circuit board and a connecting protrusion on the front cover. The mating connection between the mating portion and the connecting protrusion enables the circuit board and the front cover to be detachably connected. The first connecting portion provided on the front cover cooperates with the second connecting portion provided on the rear cover, so that the front cover and the rear cover can be detachably connected to jointly protect the circuit board. Therefore, the color sensing device of the embodiment of the present invention has the advantage of being easy to disassemble, thereby facilitating the user to clean, replace, and repair the color sensing device.

[0025] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments with reference to the following drawings, in which:

[0027] Figure 1 is a perspective view of a color sensing device according to an embodiment of the present invention;

[0028] Figure 2 for Figure 1 A top view of a color sensing device;

[0029] Figure 3 for Figure 2 A cross-sectional view of the color sensing device along AA;

[0030] Figure 4 An exploded view of a color sensing device according to an embodiment of the present invention;

[0031] Figure 5 Schematic diagram of a kitchen appliance according to an embodiment of the present invention.

[0032] Main feature reference numerals:

[0033] Label structure Label structure 100 Color sensing device 232 Card terminal 10 circuit boards 2321 Guide slope 11 plate body 24 First connecting part 111 Matching hole 241 Snap-on groove 12 Color sensor 25 Matching groove 13 Coordination Department 26 First sealing ring 14 light source 27 lens 20 front cover 28 retaining ring 21 First cover 29 Second sealing ring 211 First through hole 30 back cover 22 Butt part 31 Second cover 221 First abutment ring 32 Second connecting part 222 Abutment protrusion 321 Snap-on protrusion 223 Second abutment ring 40 interface 23 Connection protrusion 1000 kitchen appliances 231 Connecting segment 500 Ontology DETAILED DESCRIPTION

[0034] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and are not to be construed as limiting the present invention.

[0035] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present invention, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0036] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections, or mutual communication; direct connections or indirect connections through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0037] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0038] The disclosure below provides many different embodiments or examples for realizing different structures of the present invention. In order to simplify the disclosure of the present invention, the components and settings of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. In addition, the present invention may repeat reference numbers and / or reference letters in different examples. Such repetition is for the purpose of simplicity and clarity and does not in itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present invention provides examples of various specific processes and materials, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0039] See also Figures 1 to 5 An embodiment of the present invention provides a color sensing device 100 for use in a kitchen appliance 1000. The color sensing device 100 includes a circuit board 10, a front cover 20, and a rear cover 30. The circuit board 10 includes a board 11, a color sensor 12, and a mating portion 13. The color sensor 12 is mounted on the board 11, and the mating portion 13 is located on the board 11. The front cover 20 includes a first cover 21, an abutting portion 22, a connecting protrusion 23, and a first connecting portion 24. The abutting portion 22 and the connecting protrusion 23 are connected to a side of the first cover 21 close to the board 11. The connecting portion 24 is provided on the first cover 21. The abutting portion 22 abuts against a side of the board 11 close to the first cover 21. The connecting protrusion 23 is mated and connected to the mating portion 13. The abutting portion 22 and the connecting protrusion 23 jointly clamp the board 11. The rear cover 30 includes a second cover body 31 and a second connecting portion 32 . The second connecting portion 32 is disposed on the second cover body 31 and is cooperatively connected to the first connecting portion 24 .

[0040] The color sensing device 100 according to the embodiment of the present invention is provided with a mating portion 13 on the circuit board 10 and a connecting protrusion 23 on the front cover 20. The mating connection between the mating portion 13 and the connecting protrusion 23 enables a detachable connection between the circuit board 10 and the front cover 20. The first connecting portion 24 provided on the front cover 20 cooperates with the second connecting portion 32 provided on the rear cover 30, enabling a detachable connection between the front cover 20 and the rear cover 30, thereby jointly protecting the circuit board 10. Therefore, the color sensing device 100 according to the embodiment of the present invention has the advantage of being easy to disassemble, thereby facilitating cleaning, replacement, and maintenance of the color sensing device 100 by the user.

[0041] Specifically, the board 11 is used to support components such as the color sensor 12, light source 14, and interface 40. Each component can be mounted on one side of the board 11, or on both sides. The specific mounting method and position of each component can be adjusted as needed and are not specifically limited here. The interface 40 is used to electrically connect the color sensor device 100 to other devices. It is mounted on the board 11 and partially exposed to the outside world.

[0042] The color sensor 12 is a component for detecting color and can be selected based on actual needs and is not specifically limited here. The operating principle of the color sensor can be found in related art and will not be detailed here. The color sensor 12 can be connected to the board 11 through bonding, clamping, welding, etc. It is worth noting that the color sensor 12 must also be electrically connected to the board 11 to facilitate electrical connection between the color sensor 12 and other components.

[0043] The mating portion 13 is used to cooperate and connect with the connecting protrusion 23, so that the circuit board 10 provided with the mating portion 13 and the front cover 20 provided with the connecting protrusion 23 can be detachably connected. The mating portion 13 may include a stepped groove provided on the board body 11, and the connecting protrusion 23 is engaged with the groove; the mating portion 13 may also include a connecting hole provided on the board body 11, and the connecting protrusion 23 is passed through the connecting hole and abuts against the board body 11. There are many types of the mating portion 13, as long as it can cooperate with the connecting protrusion 23 to realize the detachable connection between the circuit board 10 and the front cover 20, which will not be listed one by one here.

[0044] The front cover 20 is used to protect the circuit board 10. It can be made of plastic, metal or other materials. The material used to make the front cover 20 only needs to be sufficient to protect the circuit board 10, and no specific restrictions are made here. The front cover 20 can have many shapes, and it can be cylindrical, cubic or other shapes, and no specific restrictions are made here. The abutment portion 22 is used to abut against the circuit board 10 to limit the circuit board 10. The abutment portion 22 can be fixedly connected to the first cover body 21 by welding, bonding or the like. The abutment portion 22 can also be detachably connected to the first cover body 21 by snap connection, bolt connection or the like. The abutment portion 22 can also be integrally formed with the first cover body 21. The specific formation method of the abutment portion 22 can be adjusted as needed, and no specific restrictions are made here. The abutment portion 22 may include a protrusion extending along the periphery of the first cover body 21, the abutment portion 22 may also include a protrusion located in the center of the first cover body 21, and the abutment portion 22 may also include at least two protrusions spaced apart on the first cover body 21. The setting position of the abutment portion 22 is adjusted according to factors such as the shape of the first cover body 21 and the arrangement position of components on the circuit board 10, and no specific restrictions are made here.

[0045] The connecting protrusion 23 is used to cooperate and connect with the matching portion 13. There are many types of the connecting protrusion 23 and the matching portion 13. For example, the matching portion 13 includes a first connecting hole provided on the circuit board 10, and the end of the connecting protrusion 23 away from the first cover body 21 includes an elastic member arranged in a "V" shape, and the tip of the elastic member is facing the direction in which the matching portion 13 is away from the first cover body 21. The elastic member generates elastic deformation during the process of inserting into the connecting hole, and the elastic deformation is restored after passing through the connecting hole, thereby limiting the relative position relationship between the front cover 20 and the circuit board 10; for another example, the matching portion 13 includes a second connecting hole provided on the circuit board 10, and the connecting protrusion 23 includes a protruding portion and a rotating end. The rotating end is rotatably connected to the end of the protruding portion away from the first cover body 21, and the rotating end rotates relative to the protruding portion after passing through the second connecting hole, thereby limiting the relative position relationship between the front cover 20 and the circuit board 10.

[0046] The number of connecting protrusions 23 can be 1, 2, 4, 5, 10, etc., which can be adjusted according to needs and is not specifically limited here. The connecting protrusions 23 and the matching portions 13 can have a one-to-one correspondence, or a many-to-one or one-to-many relationship, which can be adjusted according to needs and is not specifically limited here.

[0047] It is worth noting that the abutting portion 22 and the connecting protrusion 23 jointly clamp the plate body 11. Therefore, the connecting protrusion 23 and the abutting portion 22 should be able to provide forces in opposite directions to achieve clamping. The abutting portion 22 abuts against the side of the plate body 11 close to the first cover body 21, providing the plate body 11 with a force away from the first cover body 21. Therefore, the connecting protrusion 23 should be able to provide the plate body 11 with a force close to the first cover body 21. Of course, the connecting protrusion 23 can provide a force close to the first cover body 21 by providing a pulling force on the side of the plate body 11 close to the first cover body 21, or it can provide a force close to the first cover body 21 by providing a pushing force on the side of the plate body 11 away from the first cover body 21. The specific providing method will not be repeated here. It can be understood that the connecting protrusion 23 can provide a force close to the first cover body 21 for the plate body 11. The connecting protrusion 23 can both provide a force close to the first cover body 21 for the plate body 11 and provide a force away from the first cover body 21 for the plate body 11.

[0048] The first connecting portion 24 is used to cooperate with the second connecting portion 32 to achieve a detachable connection between the front cover 20 and the rear cover 30. There are many types of the first connecting portion 24 and the second connecting portion 32. For example, the first connecting portion 24 includes a latch rod that is slidably connected to the first cover body 21 along a direction perpendicular to the engagement of the first connecting portion 24 and the second connecting portion 32, and the second connecting portion 32 includes a latch hole that cooperates with the latch rod. For another example, the first connecting portion 24 is a hanging ring that is rotatably connected to the first cover body 21, and the second connecting portion 32 is a hook. The hanging ring and the hook cooperate to achieve a detachable connection between the front cover 20 and the rear cover 30.

[0049] The first connection portion 24 can be fixedly connected to the first cover body 21 by welding, bonding, etc., and the first connection portion 24 can also be detachably connected to the first cover body 21 by snap connection, threaded connection, etc. The first connection portion 24 can also be integrally formed with the first cover body 21. The specific formation method of the first connection portion 24 is adjusted according to factors such as the type of the first connection portion 24 and production needs, and is not specifically limited here.

[0050] The rear cover 30 protects the circuit board 10. It is detachably connected to the front cover 20 and together forms a cavity for accommodating the circuit board 10. The rear cover 30 can have a variety of shapes, including a rectangle, a cylinder, and the like. The shape of the rear cover 30 can be similar to or different from that of the front cover 20. The shapes of the rear cover 30 and the front cover 20 vary depending on specific installation and production factors and are not specifically limited herein.

[0051] The second connection portion 32 can be fixedly connected to the second cover body 31 by welding, bonding, etc., and the second connection portion 32 can also be detachably connected to the second cover body 31 by snap connection, threaded connection, etc. The second connection portion 32 can also be integrally formed with the second cover body 31. The specific formation method of the second connection portion 32 is adjusted according to factors such as the type of the second connection portion 32 and production needs, and is not specifically limited here.

[0052] It should be noted that the second connecting portion 32 can be arranged on the periphery of the second cover body 31, and the second connecting portion 32 can also be arranged in the middle of the second cover body 31. The setting position of the second connecting portion 32 and the second cover body 31 can be adjusted as needed. Preferably, the second connecting portion 32 is located on the periphery of the second cover body 31. Such a setting makes it convenient for users to operate the second connecting portion 32, thereby making it convenient for users to realize the detachable connection between the front cover 20 and the rear cover 30 by operating the second connecting portion 32.

[0053] Of course, the first connection part 24 can be set on the periphery of the first cover body 21, and the first connection part 24 can also be set in the middle of the first cover body 21. The positional relationship between the first connection part 24 and the first cover body 21 is adjusted according to factors such as the setting position of the second connection part 32 and production convenience, and no specific restrictions are made here.

[0054] The number of the first connection parts 24 and the second connection parts 32 can be 1, 2, 4, 5, 10, etc., and the number can be adjusted according to needs, and no specific restrictions are made here. The quantitative relationship between the first connection parts 24 and the second connection parts 32 can be a one-to-one correspondence, and the quantitative relationship between the first connection parts 24 and the second connection parts 32 can also be a many-to-one or one-to-many relationship, which is adjusted according to factors such as the type and production method of the first connection parts 24 and the second connection parts 32, and no specific restrictions are made here.

[0055] In certain embodiments, see Figure 3 The connecting protrusion 23 includes a connecting section 231 and a clamping end 232. The connecting section 231 extends in a direction toward the plate body 11. One end of the connecting section 231 away from the plate body 11 is connected to the first cover body 21, and the other end of the connecting section 231 is connected to the clamping end 232. The clamping end 232 abuts the side of the plate body 11 away from the first cover body 21. In this configuration, the clamping end 232 abuts the side of the plate body 11 away from the first cover body 21, and the abutting portion 22 abuts the side of the plate body 11 closer to the first cover body 21, so that the clamping end 232 and the abutting portion 22 jointly clamp the plate body 11. The clamping end 232 can be integrally formed with the connecting section 231, or can be fixedly connected to the connecting section 231 by bonding, welding, or the like. It can also be detachably connected to the connecting section 231 by threading, clamping, or the like.

[0056] It is worth noting that the relative position relationship between the clamping end 232 and the connecting section 231 can be unchanged. The clamping end 232 and the connecting section 231 can achieve the clamping end 232 abutting against the side of the plate body 11 away from the first cover body 21 through elastic deformation, changing the relative position relationship between the connecting section 231 and the first cover body 21, etc. The relative position relationship between the clamping end 232 and the connecting section 231 can also be variable. The clamping end 232 rotates relative to the connecting section 231 to achieve the switching between the state of maintaining the clamping end 232 abutting against the plate body 11 and the state of disengaging the clamping end 232 from abutting against the plate body 11.

[0057] It should be noted that the snap-on end 232 can be extended toward the outside of the plate body 11 relative to the connecting section 231 to abut against the plate body 11, and the snap-on end 232 can also be extended toward the center of the plate body 11 relative to the connecting section 231 to abut against the plate body 11. As long as the snap-on end 232 can abut against the side of the plate body 11 away from the first cover body 21, its specific extension direction is not limited here.

[0058] For further information, see Figure 3 and Figure 4The connecting protrusion 23 is provided along the periphery of the plate body 11. The periphery of the plate body 11 abuts against the clamping end 232, and the periphery of the plate body 11 forms a mating portion 13. In this arrangement, the mating portion 13 is directly formed on the periphery of the plate body 11 and matingly connected with the connecting protrusion 23, which reduces the production steps of the plate body 11 and effectively reduces the production time and production cost of the plate body 11. In addition, the mating portion 13 is formed on the periphery of the plate body 11, and the connecting protrusion 23 is mated with the periphery of the plate body 11, so that the connecting protrusion 23 can also provide a certain degree of protection for the periphery of the plate body 11, reducing the probability of damage to the plate body 11.

[0059] It should be noted that in order to achieve the abutment between the connecting protrusion 23 and the plate body 11, when the periphery of the plate body 11 forms the mating portion 13, the snap-on end 232 should be extended relative to the connecting section 231 toward the center of the plate body 11 to avoid the situation where the snap-on end 232 cannot abut against the plate body 11.

[0060] Of course, the plate body 11 may also be provided with a hole for the clamping end 232 to pass through, and the hole forms the fitting portion 13 . There are many other ways to form the fitting portion 13 , which will not be described in detail here.

[0061] In certain embodiments, see Figure 3 A guiding slope 2321 is provided on the side of the clamping end 232 away from the connecting section 231 to guide the mating portion 13 into contact with the clamping end 232. This arrangement facilitates the user's fastening of the circuit board 10 to the front cover 20. The guiding slope 2321 can be formed by cutting on the clamping end 232 or integrally formed with the clamping end 232. This can be adjusted based on production convenience and is not specifically limited here.

[0062] In certain embodiments, see Figure 3 and Figure 4 The first cover 21 is provided with a first through-hole 211; the abutting portion 22 is annularly arranged and passes through the first through-hole 211. One end of the abutting portion 22 located within the first cover 21 is provided with a first abutting ring 221 protruding outward. The first abutting ring 221 abuts the inner surface of the first cover 21. The abutting portion 22 is arranged around the color sensor 12. In this arrangement, the abutting portion 22 and the first cover 21 are detachably connected through the abutment of the first abutting ring 221 with the inner surface of the first cover 21, making it convenient for the user to clean the abutting portion 22 and the first cover 21 separately. In addition, the abutting portion 22 is arranged around the color sensor 12, which can also effectively protect the color sensor 12 and reduce the probability of damage to the color sensor 12 caused by external collisions.

[0063] It is worth noting that the shape of the first through hole 211 can be circular, square, or other shapes, which can be adjusted as needed and are not specifically limited here. The abutment portion 22 is arranged in an annular shape, which means that the abutment portion 22 is a hollow annular structure, and its specific shape can be a circular annular structure, a square annular structure, or the like, which are not specifically limited here. The shape of the first abutment ring 221 can be circular, square, or other shapes, and the first abutment ring 221 can also be an inner circle with an outer square, an inner square with an outer circle, or the like. The shape of the inner side of the first abutment ring 221 is adapted to the shape of the outer side of the abutment portion 22, and the shape of the outer side of the first abutment ring 221 is adjusted according to the needs of production, assembly, etc., and are not specifically limited here.

[0064] It should be added that the first abutment ring 221 can be located at the end of the abutment portion 22 away from the first cover body 21, the first abutment ring 221 can also be located in the middle of the abutment portion 22, and the first abutment ring 221 can also be located at the end of the abutment portion 22 close to the first cover body 21. As long as the first abutment ring 221 can abut and cooperate with the inner side of the first cover body 21, its relative position relationship with the abutment portion 22 is not limited here.

[0065] For further information, see Figure 3 and Figure 4 A mating groove 25 is formed on one side of the first cover 21 near the first abutting ring 221 and / or on the upper surface of the first abutting ring 221. The front cover 20 also includes a first sealing ring 26, which is installed in the mating groove 25. The inner surface of the first cover 21 abuts the upper surface of the first abutting ring 221 via the first sealing ring 26. This arrangement connects the first cover 21 and the abutting portion 22 via the first sealing ring 26, ensuring a tighter abutment between the first cover 21 and the abutting portion 22, effectively preventing oil smoke from entering the first cover 21 through the abutment between the first cover 21 and the abutting portion 22 and contaminating the color sensor 12.

[0066] The mating groove 25 can be provided only on the first cover body 21, or only on the first abutting ring 221. The mating groove 25 can also be formed by the first cover body 21 and the first abutting ring 221. The formation method of the mating groove 25 is adjusted according to factors such as sealing effect and production convenience, and no specific restrictions are made here.

[0067] It is worth mentioning that the cross section of the first sealing ring 26 can be circular, square, etc., which is not specifically limited here. The shape of the matching groove 25 is adapted to the shape of the first sealing ring 26 and will not be described in detail here.

[0068] In certain embodiments, see Figure 3 and Figure 4The plate body 11 is provided with a matching hole 111; one end of the abutting portion 22 located inside the first cover body 21 is provided with an abutting protrusion 222, which extends in a direction away from the first cover body 21. The abutting protrusion 222 passes through the matching hole 111, and the abutting protrusion 222 located outside the plate body 11 abuts against the side of the plate body 11 away from the first cover body 21. In this arrangement, the abutting portion 22 abuts against the plate body 11, and the first cover body 21 abuts against the first sealing ring 26, thereby achieving the first cover body 21 and the plate body 11 clamping the abutting portion 22. The abutting portion 22 is further provided with an abutting protrusion 222, which passes through the matching hole 111 and abuts against the plate body 11, further limiting the position of the abutting portion 22, making the relative position relationship between the abutting portion 22 and the plate body 11 more stable.

[0069] There are many structures of the abutting protrusion 222, which can be set by referring to the structure of the connecting protrusion 23 mentioned above, and will not be described in detail here.

[0070] In certain embodiments, see Figure 3 and Figure 4 A second abutting ring 223 is provided at one end of the abutting portion 22 located outside the first cover 21. The front cover 20 also includes a lens 27 and a fixing ring 28. The fixing ring 28 is located within the abutting portion 22. The edge of the lens 27 is clamped between the second abutting ring 223 and the fixing ring 28. The lens 27 is located above the color sensor 12. Providing the lens 27 above the color sensor 12 not only ensures the normal operation of the color sensor 12, but also provides enhanced protection for the color sensor 12, reduces the probability of oil smoke contacting the color sensor 12, and reduces the probability of external collisions damaging the color sensor 12. Furthermore, with this arrangement, the second abutting ring 223 and the fixing ring 28 clamp the edge of the lens 27. To replace or clean the lens 27, the user only needs to remove the abutting portion 22 to release the clamping effect of the abutting portion 22 and the fixing ring 28 on the lens 27, making it convenient and quick for the user to replace or remove the lens 27.

[0071] The lens 27 can be a plane mirror or a convex lens 27. Preferably, the lens 27 is a convex lens 27. With this configuration, the convex lens 27 can focus external light onto the color sensor 12, thereby improving the detection accuracy of the color sensor 12. Generally, lighting components such as the light source 14 are also provided around the color sensor 12. The convex lens 27 can also change the angle of the light from the light source 14 and other lighting components so that the light can be parallel or nearly parallel to each other, thereby achieving a better illumination effect.

[0072] It is worth noting that, in order to facilitate the separation of the fixing ring 28 from the abutting portion 22 and thus facilitate the disassembly of the lens 27, the fixing ring 28 and the abutting portion 22 are not fixedly connected, that is, the relative position relationship between the fixing ring 28 and the abutting portion 22 can be changed without destroying the structure of the fixing ring 28 and the abutting portion 22. There are many ways to limit the fixing ring 28. For example, one end of the fixing ring 28 abuts against the second abutting ring 223, and the other end of the fixing ring 28 abuts against the plate body 11. In this case, the second abutting ring 223 and the plate body 11 jointly clamp the fixing ring 28 to achieve the position limitation of the fixing ring 28; for another example, the plate body 11 is provided with a hole for the fixing ring 28 to pass through, one end of the fixing ring 28 abuts against the second abutting ring 223, the middle part of the fixing ring 28 passes through the hole of the plate body 11, and the other end of the fixing ring 28 is fixedly connected to the back cover 30 to achieve the position limitation of the fixing ring 28.

[0073] It should be noted that the second abutment ring 223 can be located at one end of the abutment portion 22 close to the first cover body 21, and the second abutment ring 223 can also be located in the middle of the abutment portion 22. The setting position of the second abutment portion 22 can ensure that it and the fixing ring 28 can clamp the lens 27 above the color sensor 12. The specific relative position relationship between the second abutment ring 223 and the abutment portion 22 is not limited here.

[0074] In certain embodiments, see Figure 4 The front cover 20 further includes a second sealing ring 29, through which the fixing ring 28 abuts against the edge of the lens 27. This arrangement makes the fixing ring 28 and the lens 27 more tightly connected, reducing the probability of oil smoke entering the color sensor 12 through the gap between the fixing ring 28 and the lens 27.

[0075] It should be supplemented that a receiving groove can be provided on the fixing ring 28 and / or the lens 27 to accommodate the second sealing ring 29. The receiving groove can be provided only on the fixing ring 28, or only on the lens 27, or can be formed by a recessed arrangement of the fixing ring 28 and the lens 27.

[0076] The cross-sectional shape of the second sealing ring 29 can be square, circular, etc. The shape of the receiving groove is adapted to the shape of the second sealing ring 29 and will not be elaborated here.

[0077] In certain embodiments, see Figures 1 to 4The second connecting portion 32 includes a snap-in protrusion 321 extending toward the periphery of the first cover 21. The first connecting portion 24 includes a snap-in groove 241 formed on the periphery of the first cover 21. The snap-in groove 241 engages with the snap-in protrusion 321. This arrangement allows the snap-in protrusion 321 to engage with the snap-in groove 241, enabling a detachable connection between the front cover 20 and the rear cover 30. Furthermore, the location of the snap-in groove 241 on the periphery of the first cover 21 facilitates the manufacture of the snap-in groove 241, thereby improving the production efficiency of the color sensing device 100.

[0078] There are many structures of the engaging protrusion 321 , which can refer to the structure of the connecting protrusion 23 , and will not be described in detail here.

[0079] In certain embodiments, see Figure 3 The circuit board 10 also includes a light source 14. The LED and color sensor 12 are mounted on the same side of the board 11. The color sensor 12 typically determines the color of an object by reflecting light, and is therefore highly dependent on the light source. Placing the light source 14 next to the color sensor 12 effectively resolves the problem of the color sensor 12 still relying on an external light source. Furthermore, different colors of light irradiating the same object may reflect different colors of light. Therefore, ensuring that the color sensor 12 can receive a relatively stable amount of reflected light from the emitted light makes the detection of the color sensor 12 more accurate. Specifically, the light source 14 can be an LED lamp, a halogen lamp, etc., and is not specifically limited here.

[0080] Taking the light source 14 as an LED lamp as an example, the number of LED lamps can be one, two, four, etc., and the number is adjusted according to the detection needs of the color sensor 12 and is not specifically limited here. Preferably, there are two LED lamps, and the two LED lamps are symmetrically distributed on both sides of the color sensor 12. This arrangement produces a more symmetrical light source compared to providing only one LED lamp. Compared to providing more than two LED lamps, providing only two LED lamps does not occupy excessive space on the plate 11, thereby reducing the volume of the color sensing device 100.

[0081] The present invention also proposes a kitchen appliance 1000. Specifically, the kitchen appliance 1000 includes but is not limited to an appliance with an oil fume exhaust function, such as an oil fume device and an integrated stove. In the illustrated embodiment, the kitchen appliance 1000 is described by taking an oil fume device as an example. Figure 5The kitchen appliance 1000 can be a top-discharge kitchen appliance, a bottom-discharge kitchen appliance, or a side-discharge kitchen appliance, without specific limitation herein. For example, if the kitchen appliance 1000 is a range hood, the kitchen appliance 1000 equipped with the color sensor 100 can detect changes in the external color based on the color sensor 100. Based on the changes detected by the color sensor 100, the kitchen appliance 1000 can determine whether a light is on, whether someone is near the kitchen appliance 1000, or whether there is too much smoke. This allows the kitchen appliance 1000 to switch between starting, changing operating power, and stopping operation based on the judgment results.

[0082] Specifically, the kitchen appliance 1000 includes a body 500 and a color sensing device 100 .

[0083] The main body 500 includes, but is not limited to, components such as a housing, a deflector, a fan, and a check valve. The deflector, fan, and check valve are all mounted on the housing. Oil smoke enters the housing through the deflector. When the fan installed in the housing operates, the oil smoke is drawn into the fan under the centrifugal force of the fan and discharged from the fan's air outlet into the check valve. The check valve prevents the oil smoke from flowing back into the fan, thereby achieving oil smoke discharge. It is understood that a check valve is a valve whose opening and closing member is a circular valve disc that operates by its own weight and the pressure of the medium to prevent the backflow of the medium. The check valve can be a lift check valve or a swing check valve.

[0084] There are many ways to connect the color sensing device 100 to the main body 500. The color sensing device 100 can be connected to the main body 500 by means of clipping, bolting, etc. The color sensing device 100 can also be fixedly connected to the main body 500 by means of bonding, welding, etc. It is worth noting that when the color sensing device 100 is fixedly connected to the main body 500, the front cover 20 or the rear cover 30 of the color sensing device 100 can be fixedly connected to the main body 500, and the front cover 20 and the rear cover 30 cannot be fixedly connected to the main body 500 together to avoid the situation where the front cover 20 and the rear cover 30 cannot be separated.

[0085] There are many possible positions of the color sensing device 100 and the body 500. The color sensing device 100 can be located in the middle, side, bottom, etc. of the body 500. It is adjusted according to the content that the color sensor 12 needs to detect, and no specific restrictions are made here.

[0086] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "example," "specific example," or "some examples" means that a specific feature, structure, material, or characteristic described in conjunction with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0087] Although embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and are not to be construed as limitations on the present invention. A person skilled in the art may change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A color sensing device for kitchen appliances, characterized in that: The color sensing device comprises: A circuit board, comprising a board body, an interface, a color sensor, and a mating portion, wherein the color sensor is mounted on the board body, and the mating portion is located on the board body; the board body carries the interface, and the interface is used to electrically connect the color sensor device to other devices; The front cover comprises a first cover body, an abutting portion, a connecting protrusion, and a first connecting portion provided on the first cover body, the abutting portion and the connecting protrusion being connected to a side of the first cover body close to the plate body, the abutting portion abutting against a side of the plate body close to the first cover body, the connecting protrusion being matingly connected with the mating portion, the abutting portion and the connecting protrusion jointly clamping the plate body, so that the front cover and the plate body are detachably connected; The back cover includes a second cover body and a second connecting portion, wherein the second connecting portion is provided on the second cover body and cooperates with the first connecting portion to connect the front cover and the back cover in a detachable manner; The first cover is provided with a first through hole; The abutment portion is annular and passes through the first through hole. One end of the abutment portion located in the first cover body is provided with a first abutment ring protruding outward. The first abutment ring abuts against the inner surface of the first cover body. The abutment portion is arranged around the color sensor. The circuit board further includes a light source, and the light source and the color sensor are mounted on the same side of the board body.

2. The color sensing device according to claim 1, wherein: The connecting protrusion includes a connecting section and a clamping end, the connecting section extends in a direction close to the plate body, one end of the connecting section away from the plate body is connected to the first cover body, and the other end of the connecting section is connected to the clamping end, and the clamping end abuts against the side of the plate body away from the first cover body.

3. The color sensing device according to claim 2, wherein: The connecting protrusion is arranged along the periphery of the plate body, the periphery of the plate body abuts against the clamping end, and the periphery of the plate body forms the matching portion.

4. The color sensing device according to claim 2, wherein: A guiding slope is provided on a side of the clamping end away from the connecting section to guide the matching portion to abut against the clamping end.

5. The color sensing device according to claim 1, wherein: A matching groove is formed on a side of the first cover body close to the first abutting ring and / or on an upper surface of the first abutting ring; The front cover further includes a first sealing ring, which is installed in the matching groove. The inner surface of the first cover body abuts against the upper surface of the first abutting ring through the first sealing ring.

6. The color sensing device according to claim 1, wherein: The plate body is provided with a matching hole; An abutment protrusion is provided at one end of the abutment portion located inside the first cover body. The abutment protrusion extends in a direction away from the first cover body. The abutment protrusion passes through the matching hole. The abutment protrusion located outside the plate body abuts against a side of the plate body away from the first cover body.

7. The color sensing device according to claim 1, wherein: A second abutment ring is protruded inwardly from one end of the abutment portion located outside the first cover; The front cover further includes a lens and a fixing ring. The fixing ring is located in the abutting portion. The edge of the lens is clamped between the second abutting ring and the fixing ring. The lens is located above the color sensor.

8. The color sensing device according to claim 7, wherein: The front cover further includes a second sealing ring, and the fixing ring abuts against the edge of the lens through the second sealing ring.

9. The color sensing device according to claim 1, wherein: The second connecting portion includes a clamping protrusion extending toward the periphery of the first cover body, and the first connecting portion includes a clamping groove formed on the periphery of the first cover body, and the clamping groove is cooperatively connected with the clamping protrusion.

10. A kitchen appliance, characterized in that: The kitchen appliances include: ontology, and The color sensing device according to any one of claims 1 to 9, wherein the color sensing device is mounted on the body.

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