Circuit board assembly, turning board assembly and range hood

Abstract

The circuit board assembly comprises an installation part, a circuit board and a cover plate, a containing cavity with an opening in one end is defined by the installation part, the circuit board is arranged in the containing cavity through the opening, an elastic ring is arranged on the periphery of the cover plate in a sleeved mode, the cover plate is connected to the installation part through a fastener and covers the opening in a sealing mode, and the circuit board is arranged in the containing cavity. And the elastic ring is extruded and deformed to form a sealing structure in the process of tightening the fastener. According to the circuit board assembly provided by the utility model, after the circuit board is arranged in the accommodating cavity through the opening, as the periphery of the cover plate is sleeved with the elastic ring, when the cover plate is connected to the mounting piece through the fastener and covers the opening, the elastic ring can be extruded to deform to form a sealing structure, so that the circuit board is sealed in the accommodating cavity; the circuit board is effectively protected, the situation that oil enters the circuit board and fails is avoided, the structure is simple, and installation and operation are convenient.

Description

Technical Field

[0001] This utility model relates to the field of range hood technology, specifically to a circuit board assembly, a flap assembly, and a range hood. Background Technology

[0002] As people's living standards improve, their demands for a better kitchen cooking environment are also increasing. Range hoods have become an indispensable kitchen appliance in modern homes. A range hood works by using a motor to drive an impeller at high speed, creating a negative pressure zone near the smoke collection chamber, which draws cooking fumes into the machine and exhausts them outdoors.

[0003] Existing range hoods are generally controlled by switches that are electrically connected to a circuit board. For example, users can control the working status of the range hood through the switch. However, because the circuit board is exposed to oil fumes for a long time, it is prone to oil ingress and failure. Its failure rate is higher than that of other components of the range hood. Once the circuit board fails, it will affect the use of the entire range hood. Utility Model Content

[0004] In order to at least partially solve the problems existing in the prior art, according to one aspect of the present invention, a circuit board assembly is provided, the technical solution of which is as follows.

[0005] The circuit board assembly includes a mounting component, a circuit board, and a cover plate. The mounting component forms a receiving cavity with one end open. The circuit board is placed in the receiving cavity through the opening. An elastic ring is fitted around the periphery of the cover plate, and the cover plate is connected to the mounting component by fasteners and seals the opening. The elastic ring is compressed and deformed during the tightening of the fasteners to form a sealing structure.

[0006] The circuit board assembly of this utility model has a circuit board placed in the receiving cavity through an opening. Because the periphery of the cover plate is fitted with an elastic ring, when the cover plate is connected to the mounting part by fasteners and covers the opening, it can squeeze the elastic ring to deform the elastic ring and form a sealing structure, thereby sealing the circuit board in the receiving cavity, effectively protecting the circuit board, avoiding the occurrence of oil ingress failure of the circuit board, and the structure is simple and easy to install and operate.

[0007] For example, a groove is provided on the inner ring of the elastic ring, and the periphery of the cover plate is engaged in the groove. This facilitates the positioning and installation of the elastic ring, and the engagement of the periphery of the cover plate in the groove prevents the elastic ring from shifting or falling off after installation.

[0008] For example, the cover plate has a plate thickness H1, and the slot has a slot width H2, where H1 < H2. When the plate thickness H1 and the slot width H2 have this relationship, it is convenient to fit the elastic ring around the periphery of the cover plate.

[0009] For example, the periphery of the cover plate has a bent portion that bends towards the mounting component. In this way, the bent portion can expand the elastic ring, keeping the elastic ring in a deformed state, effectively preventing the elastic ring from shifting or falling off after installation.

[0010] For example, the elastic ring has a mating surface opposite to the mounting component, and a protrusion is provided on the mating surface facing the mounting component. In this way, the protrusion abuts against the mounting component to form a secondary sealing structure, ensuring sealing performance.

[0011] For example, the protrusion forms a raised ring along the circumference of the elastic ring. In this way, the sealing of the connection between the cover plate and the mounting component is effectively guaranteed.

[0012] For example, the mating surface has at least two raised rings. This further ensures the sealing of the connection between the cover plate and the mounting component.

[0013] According to another aspect of the present invention, a flap assembly is provided, including a flap and a circuit board assembly as described above, wherein the circuit board assembly is disposed on the flap. Since the circuit board assembly as described above has the aforementioned beneficial effects, the flap assembly including the circuit board assembly as described above also has the aforementioned beneficial effects, which will not be elaborated further here.

[0014] For example, the flap has an inner surface to which the mounting component is adhered. This facilitates the installation of the mounting component and ensures a secure connection between the mounting component and the flap assembly.

[0015] According to another aspect of this utility model, a range hood is provided, including a housing and a flap assembly as described above. An air inlet is provided on the housing, and the air inlet is opened or closed by the flap assembly. Since the flap assembly described above has the aforementioned beneficial effects, the range hood including the flap assembly described above also has the aforementioned beneficial effects, which will not be elaborated further here.

[0016] This utility model description introduces a series of simplified concepts, which will be further explained in detail in the detailed description section. This utility model description is not intended to limit the key features and essential technical features of the claimed technical solution, nor is it intended to determine the scope of protection of the claimed technical solution.

[0017] The advantages and features of this utility model will be described in detail below with reference to the accompanying drawings. Attached Figure Description

[0018] The following drawings, which are incorporated herein by reference as part of this invention, are provided for understanding the invention. The drawings illustrate embodiments of the invention and their descriptions, serving to explain the principles of the invention. In the drawings,

[0019] Figure 1 A partial perspective view of a range hood as an exemplary embodiment of the present invention;

[0020] Figure 2 for Figure 1 The left view corresponding to the range hood shown;

[0021] Figure 3 for Figure 1 Rear view of the flip panel component;

[0022] Figure 4a for Figure 3 Sectional view of AA;

[0023] Figure 4b for Figure 4a Enlarged view of part I in the image;

[0024] Figure 5 for Figure 3 Rear view of the flap assembly (after removing the cover plate, circuit board, and elastic ring);

[0025] Figure 6 for Figure 3 The front view of the elastic ring in the middle;

[0026] Figure 7 for Figure 6 A cross-sectional view of BB.

[0027] The above figures include the following reference numerals:

[0028] 1. Range hood; 10. Flip plate assembly; 110. Circuit board assembly; 111. Mounting component; 1111. Receiving cavity; 1112. Flange; 1112a. Third mounting hole; 1113. First mounting hole; 112. Circuit board; 113. Cover plate; 1131. Bending part; 1132. Second mounting hole; 114. Elastic ring; 1141. Slot; 1142. Mating surface; 1143. Protrusion; 1144. Protruding ring; 120. Flip plate; 121. Inner surface; 20. Housing; 210. Air inlet. Detailed Implementation

[0029] In the following description, numerous details are provided to enable a thorough understanding of the present invention. However, those skilled in the art will appreciate that the following description merely illustrates preferred embodiments of the present invention, which may be practiced without one or more of these details. Furthermore, to avoid confusion with the present invention, some technical features well-known in the art have not been described in detail.

[0030] To fully understand the embodiments of this utility model, a detailed structure will be presented in the following description. Obviously, the implementation of the embodiments of this utility model is not limited to the specific details familiar to those skilled in the art. Preferred embodiments of this utility model are described in detail below; however, in addition to these detailed descriptions, this utility model may have other embodiments.

[0031] This utility model provides a circuit board assembly. The circuit board assembly provided by this utility model can be mounted on a flap assembly, which can be applied to a range hood. The circuit board assembly according to an embodiment of this utility model will be described in detail below with reference to the accompanying drawings.

[0032] See also Figures 1 to 7 The circuit board assembly 110 may include a mounting member 111, a circuit board 112, and a cover plate 113. The circuit board assembly 110 of this invention is mainly used in a range hood 1. The circuit board 112 can be electrically connected to the switch of the range hood 1. The mounting member 111 can be enclosed to form a receiving cavity 1111 with one open end. The circuit board 112 can be disposed within the receiving cavity 1111 through the opening. An elastic ring 114 can be fitted around the periphery of the cover plate 113, and the cover plate 113 can be connected to the mounting member 111 by fasteners and seal the opening. The elastic ring 114 can form a sealing structure by being compressed and deformed during the tightening of the fasteners.

[0033] The circuit board assembly 110 of this utility model has a circuit board 112 placed in the receiving cavity 1111 through an opening. Since the periphery of the cover plate 113 is fitted with an elastic ring 114, when the cover plate 113 is connected to the mounting part 111 by fasteners and covers the opening, it can squeeze the elastic ring 114 to deform the elastic ring 114 and form a sealing structure, thereby sealing the circuit board 112 in the receiving cavity 1111. This effectively protects the circuit board 112 and avoids the circuit board 112 from oil ingress and failure. Moreover, the structure is simple and easy to install and operate.

[0034] The elastic ring 114 can be made of rubber. Rubber has good elasticity and sealing properties, is suitable for various working environments, and is inexpensive. Of course, the elastic ring 114 can also be made of other elastic materials.

[0035] In some embodiments, in conjunction with reference Figure 3 and Figure 5 The mounting component 111 may have a first mounting hole 1113. The cover plate 113 may have a second mounting hole 1132. The first mounting hole 1113 and the second mounting hole 1132 can be connected by fasteners such as screws, thereby connecting the cover plate 113 to the mounting component 111. See reference. Figure 5The mounting member 111 extends into the receiving cavity 1111 to form a flange portion 1112. The circuit board 112 can be connected to the flange portion 1112 to house the circuit board 112 within the receiving cavity 1111. A third mounting hole 1112a can be provided on the flange portion 1112. The third mounting hole 1112a and the circuit board 112 can be connected by fasteners such as screws. This avoids the circuit board 112 from being easily damaged by impacting the inner wall of the receiving cavity 1111 due to lack of fixation. Using fasteners such as screws to connect the cover plate 113 to the mounting member 111 and the flange portion 1112 to the circuit board 112 facilitates the disassembly and assembly of the cover plate 113 or the circuit board 112 for maintenance, cleaning, and replacement of various parts of the circuit board assembly 110. At the same time, the connection between the cover plate 113 and the mounting member 111 by fasteners such as screws allows control over the compressive strength of the elastic ring 114. Of course, the cover plate 113 and the mounting part 111 can also be connected in other ways, and the circuit board 112 can also be set in the receiving cavity 1111 in other ways.

[0036] In an embodiment not shown in the figures, the cover plate 113 may have a mounting surface opposite to the mounting member 111. A mounting groove may be formed on the mounting surface. An elastic ring 114 may be disposed within the mounting groove. The elastic ring 114 can form a sealing structure by being compressed and deformed during the tightening of the fastener. The elastic ring 114 may be interference-fitted with the mounting groove to prevent the elastic ring 114 from dislodging from the mounting groove.

[0037] See also Figure 3 , Figure 4a , Figure 6 and Figure 7 A groove 1141 can be provided on the inner ring of the elastic ring 114. The periphery of the cover plate 113 can be inserted into the groove 1141. This facilitates the positioning and installation of the elastic ring 114, and the periphery of the cover plate 113 being inserted into the groove 1141 avoids the problem of the elastic ring 114 shifting or falling off after installation.

[0038] See also Figure 3 , Figure 4a , Figure 4b and Figure 7 The cover plate 113 may have a plate thickness H1. The slot 1141 may have a slot width H2, where H1 < H2. When the plate thickness H1 and the slot width H2 have this relationship, it is convenient to fit the elastic ring 114 around the periphery of the cover plate 113.

[0039] See also Figure 3 and Figure 4bThe periphery of the cover plate 113 may have a bent portion 1131 that bends toward the mounting member 111. In this way, the bent portion 1131 can expand the elastic ring 114, placing the elastic ring 114 in a deformed state, effectively preventing the elastic ring 114 from shifting or falling off after installation. The bent portion 1131 can abut against the inner wall of the slot 1141 to confine the periphery of the cover plate 113 within the slot 1141.

[0040] See also Figure 3 , Figure 4a , Figure 6 and Figure 7 The elastic ring 114 may have a mating surface 1142 opposite to the mounting member 111. A protrusion 1143 may be provided on the mating surface 1142 facing the mounting member 111. Thus, the protrusion 1143 abuts against the mounting member 111 to form a secondary sealing structure, ensuring airtightness. Correspondingly, in an embodiment not shown in the figures, the mounting member 111 may have a groove that mates with the protrusion 1143. By mates the protrusion 1143 with the groove, the cover plate 113, on which the elastic ring 114 is fitted, is positioned during installation. Understandably, the groove depth may be less than the protrusion height of the protrusion 1143 to ensure the airtightness of the connection between the cover plate 113 and the mounting member 111.

[0041] See again Figure 3 , Figure 4a , Figure 6 and Figure 7 The protrusion 1143 can form a protruding ring 1144 along the circumference of the elastic ring 114. This effectively ensures the sealing of the connection between the cover plate 113 and the mounting member 111. In an embodiment not shown in the figures, an annular groove that mates with the protruding ring 1144 can be formed on the mating surface 1142 to position the cover plate 113, on which the elastic ring 114 is fitted, facilitating the installation of the cover plate 113. Understandably, the depth of the annular groove can be less than the protrusion height of the protruding ring 1144 to ensure the sealing of the connection between the cover plate 113 and the mounting member 111.

[0042] See again Figure 3 , Figure 4a , Figure 6 and Figure 7 The mating surface 1142 may have at least two raised rings 1144. The raised rings 1144 may have two, three, or four rings, etc. This further ensures the sealing performance of the connection between the cover plate 113 and the mounting member 111. In some embodiments, the raised rings 1144 are two rings. Two raised rings 1144 can effectively ensure the sealing performance of the connection between the cover plate 113 and the mounting member 111, while saving material and facilitating manufacturing.

[0043] The assembly process of each part of the circuit board assembly 110 is described here. First, the circuit board 112 is placed in the receiving cavity 1111. Then, the elastic ring 114 is sleeved around the periphery of the cover plate 113. Finally, the cover plate 113 is connected to the mounting part 111 and the opening is sealed by fasteners. The elastic ring 114 is compressed and deformed during the tightening of the fasteners to form a sealing structure, thereby sealing the receiving cavity 1111 and protecting the circuit board 112.

[0044] According to another aspect of the present invention, a flap assembly 10 is provided. The flap assembly 10 may include a flap 120 and a circuit board assembly 110 as described above. The circuit board assembly 110 may be disposed on the flap 120. Since the circuit board assembly 110 described above has the aforementioned beneficial effects, the flap assembly 10 including the circuit board assembly 110 described above also has the aforementioned beneficial effects, which will not be elaborated further here.

[0045] Combined with participation Figures 1 to 5 The flap 120 may have an inner surface 121, which is understood to be a non-exposed surface of the flap 120. The mounting member 111 can be bonded to the inner surface 121. This facilitates the installation of the mounting member 111 and ensures a strong connection between the mounting member 111 and the flap assembly 10. The mounting member 111 can be bonded to the inner surface 121 by applying an adhesive layer between the mounting member 111 and the inner surface 121, thus simplifying the operation and ensuring a strong connection. Specifically, silicone adhesive can be applied between the mounting member 111 and the inner surface 121. Silicone adhesive has high temperature resistance and durability, effectively ensuring the strong adhesion between the mounting member 111 and the flap 120. Of course, the mounting member 111 can also be bonded to the inner surface 121 by other methods.

[0046] According to another aspect of the present invention, a range hood 1 is provided. The range hood 1 may include a housing 20 and a flap assembly 10 as described above. An air inlet 210 may be provided on the housing 20. The air inlet 210 can be opened or closed by the flap assembly 10. Since the flap assembly 10 described above has the aforementioned beneficial effects, the range hood 1 including the flap assembly 10 described above also has the aforementioned beneficial effects, which will not be elaborated further here.

[0047] In the description of this utility model, it should be understood that the directional terms such as "front", "rear", "up", "down", "left", "right", "horizontal", "vertical", "horizontal", "top", and "bottom" indicate the orientation or positional relationship, which are usually based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself.

[0048] For ease of description, relative terms such as "above," "over," "on the upper surface of," and "above" are used here to describe the regional positional relationship of one or more components or features shown in the figures to other components or features. It should be understood that relative terms include not only the orientation of the component as depicted in the figure but also different orientations during use or operation. For example, if the components in the figures are inverted as a whole, "above" or "above other components or features" will include cases where the component is "below" or "under" other components or features. Thus, the exemplary term "above" can include both "above" and "below." Furthermore, these components or features may also be positioned at other different angles (e.g., rotated 90 degrees or other angles), and this document intends to include all such cases.

[0049] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, parts, components, and / or combinations thereof.

[0050] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application 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 this application described herein can be implemented in sequences other than those illustrated or described herein.

[0051] This utility model has been described through the above embodiments. However, it should be understood that the above embodiments are for illustrative purposes only and are not intended to limit the utility model to the described embodiments. Furthermore, those skilled in the art will understand that this utility model is not limited to the above embodiments, and many more variations and modifications can be made based on the teachings of this utility model, all of which fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A circuit board assembly, characterized in that, include: Mounting component, the mounting component enclosing to form a receiving cavity with one end open; A circuit board, wherein the circuit board is disposed within the receiving cavity through the opening; as well as A cover plate, wherein an elastic ring is fitted around the periphery of the cover plate, and the cover plate is connected to the mounting component by fasteners and seals the opening; The elastic ring is compressed and deformed during the tightening of the fastener to form a sealing structure.

2. The circuit board assembly according to claim 1, characterized in that, The inner ring of the elastic ring has a groove, and the periphery of the cover plate is engaged in the groove.

3. The circuit board assembly according to claim 2, characterized in that, The cover plate has a plate thickness H1, and the slot has a slot width H2, where H1 < H2.

4. The circuit board assembly according to claim 2, characterized in that, The periphery of the cover plate has a bent portion that bends toward the mounting component.

5. The circuit board assembly according to claim 1, characterized in that, The elastic ring has a mating surface opposite to the mounting component, and a protrusion is provided on the mating surface in the direction of the mounting component.

6. The circuit board assembly according to claim 5, characterized in that, The protrusion forms a convex ring along the circumference of the elastic ring.

7. The circuit board assembly according to claim 6, characterized in that, The mating surface has at least two convex rings.

8. A flap assembly, characterized in that, It includes a flap and a circuit board assembly as described in any one of claims 1-7, the circuit board assembly being disposed on the flap.

9. The flap assembly according to claim 8, characterized in that, The flap has an inner surface, and the mounting component is adhered to the inner surface.

10. A range hood, characterized in that, It includes a housing and a flap assembly as described in any one of claims 8-9, wherein the housing is provided with an air inlet, and the air inlet is opened or closed by the flap assembly.

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