Circuit board waterproof assembly and intelligent door lock

Abstract

According to the circuit board waterproof assembly and the intelligent door lock, a wire outlet penetrating through the side wall of a mounting cavity and the outer side wall of a mounting table is formed in the mounting table in a panel, a connecting wire harness penetrates through the wire outlet, and a waterproof buckle fixed outside the connecting wire harness is in extrusion fit with the wire outlet; meanwhile, the waterproof cover seals and covers the mounting cavity and presses the waterproof buckle, and the waterproof buckle is made of a flexible material or an elastic material, so that the waterproof buckle, the inner wall of the wire outlet and the waterproof cover can form a sealing waterproof effect, the mounting cavity is sealed into a sealed space, rainwater or moisture cannot enter the circuit board, and the service life of the circuit board is prolonged. Normal work of the whole set of circuit is guaranteed, and meanwhile circuit control signals can be transmitted to other devices through the wire harness to work.

Description

Technical Field

[0001] The present application relates to the technical field of household appliances, and particularly relates to a circuit board waterproof component and an intelligent door lock. Background Art

[0002] An intelligent door lock is a modern door lock system that combines electronic technology, Internet of Things technology, and encryption technology. Compared with traditional mechanical door locks, it provides a more convenient and secure access control method. The core features of an intelligent door lock are remote control, multiple unlocking methods, and high levels of personalized settings. The development of intelligent door locks conforms to the trend of smart home, not only enhancing home security but also bringing unprecedented convenience, and gradually becoming an important part of modern home security protection.

[0003] Current intelligent door locks generally mainly include structural components, circuit boards, various functional modules, and connecting wire harnesses. First, the circuit board is fixed on the structural component (such as the front / rear panel), and then the circuit board or various functional modules are connected through the connecting wire harness to achieve the function of locking and unlocking the door.

[0004] The circuit board is generally fixed to the structural component by screws or buckles, and the connection between the connecting wire harness and the circuit board is generally through plug terminals. However, the foregoing assembly method does not have a waterproof function. For example, if the door lock is used outdoors or in southern and coastal cities with high humidity, rain or moisture will enter the interior of the circuit board, plug terminals, and both ends of the wire harness, resulting in abnormal operation of the entire circuit (such as failure, high power consumption, heating, etc.). Summary of the Utility Model

[0005] The purpose of the present application is to provide a circuit board waterproof component and an intelligent door lock, which can keep electronic devices such as the circuit board and plug terminals in a sealed space, so that rain or moisture will not enter the circuit board, ensuring the normal operation of the entire circuit.

[0006] The embodiments of the present application can be implemented as follows:

[0007] In a first aspect, the present utility model provides a circuit board waterproof component for an intelligent door lock. The circuit board waterproof component includes a panel, a connecting wire harness, a waterproof buckle, and a waterproof cover;

[0008] An installation platform is provided inside the panel. The installation platform is provided with a sunken installation cavity for installing the circuit board. Among them, the installation platform is also provided with an outlet, and the outlet penetrates the inner side wall of the installation cavity and the outer side wall of the installation platform;

[0009] The connecting wire harness is located inside the panel and passes through the outlet to be able to connect with the circuit board;

[0010] The waterproof buckle is made of a flexible material or an elastic material. The waterproof buckle is fixedly arranged around the connection wire harness in a surrounding shape and is in extrusion fit with the wire outlet.

[0011] The waterproof cover is hermetically connected to the mounting table and extrudes the waterproof buckle to seal the mounting cavity into a sealed space.

[0012] In an optional embodiment, the waterproof buckle is integrally formed with the connection wire harness.

[0013] In an optional embodiment, connection holes are arranged in a region of the mounting table located outside the mounting cavity. The waterproof cover has an extension part, and through holes corresponding to the connection holes are arranged in the extension part. A fastener is inserted through the through holes and locked with the connection holes to fix the waterproof cover to the panel.

[0014] In an optional embodiment, the waterproof buckle is in a multi-prismatic shape. The shape of the wire outlet is adapted to the shape of the waterproof buckle, and one side of the waterproof buckle is attached to the waterproof cover.

[0015] In an optional embodiment, an annular groove is formed on the outer peripheral surface of the waterproof buckle. The inner wall of the groove includes a first side wall, a bottom wall, and a second side wall that are sequentially connected. The first side wall and the second side wall are opposite to each other. The first side wall is closely attached to the outer side wall of the mounting table, the second side wall is closely attached to the inner side wall of the mounting cavity, and the bottom wall is closely attached to the inner wall of the wire outlet.

[0016] In an optional embodiment, a sealing cavity surrounding the mounting cavity is formed at the contact position between the mounting table and the waterproof cover. The sealing cavity is used for placing a sealing material.

[0017] In an optional embodiment, the sealing material includes a sealing ring or a sealing filler.

[0018] In an optional embodiment, a sealing groove is arranged on one of the mounting table and the waterproof cover. The sealing groove surrounds the outer peripheral side of the mounting cavity. The other of the mounting table and the waterproof cover blocks the notch of the sealing groove to form the sealing cavity.

[0019] In an optional embodiment, a convex rib surrounding the mounting cavity is arranged on the other of the mounting table and the waterproof cover. The convex rib is embedded in the sealing groove, and a gap between the convex rib and the sealing groove forms the sealing cavity.

[0020] In an alternative embodiment, the mounting table is provided with the sealing groove, and the convex rib presses the waterproof buckle. Wherein, a raised portion is formed at a position on the convex rib corresponding to the waterproof buckle, and the raised portion presses the waterproof buckle.

[0021] In a second aspect, the present utility model provides an intelligent door lock, which includes a circuit board and the circuit board waterproof assembly according to any one of the foregoing embodiments. The circuit board is disposed in the installation cavity, and the connection wire harness is connected to the circuit board.

[0022] Compared with the prior art, the beneficial effects of the embodiments of the present application include, for example:

[0023] By providing an outlet formed through the side wall of the installation cavity and the outer side wall of the mounting table on the mounting table within the panel, the connection wire harness is passed through the outlet and fixed, and the waterproof buckle outside the connection wire harness is in extrusion fit with the outlet. At the same time, the waterproof cover presses the waterproof buckle. Since the waterproof buckle is made of a flexible material or an elastic material, the waterproof buckle can form a sealed waterproof effect with the inner wall of the outlet and the waterproof cover, so as to seal the installation cavity into a sealed space, so that rainwater or moisture will not enter the circuit board, ensuring the normal operation of the entire circuit. At the same time, the circuit control signal can be transmitted through the wire harness to other devices for operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0025] Figure 1 is an exploded view of the intelligent door lock according to the embodiment of the present application;

[0026] Figure 2 is Figure 1 a schematic view after the blanking cover assembly;

[0027] Figure 3 is Figure 2 one of the exploded views of

[0028] Figure 4 is Figure 2 another exploded view of

[0029] Figure 5 is Figure 4 an enlarged view of part A in

[0030] Figure 6 is Figure 4 a schematic view of the waterproof cover in

[0031] Icons: 100 - Circuit board waterproof component; 110 - Panel; 111 - Mounting table; 112 - Mounting cavity; 113 - Wire outlet; 114 - Sealing groove; 115 - Connecting hole; 120 - Connecting wire harness; 130 - Waterproof buckle; 131 - Groove; 132 - First side wall; 133 - Bottom wall; 134 - Second side wall; 140 - Waterproof cover; 141 - Rib; 142 - Protrusion; 143 - Extension; 144 - Through hole; 150 - Circuit board; 160 - Plug terminal; 200 - Cover plate assembly. Detailed implementation manners

[0032] To make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Apparently, the described embodiments are some but not all of the embodiments of the present application. Usually, the components of the embodiments of the present application described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0033] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application claimed, but merely represents selected embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts fall within the scope of protection of the present application.

[0034] It should be noted that: Similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0035] In the description of the present application, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship when the product of this application is usually placed. It is only for the convenience of describing the present application 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 a limitation of the present application. In addition, the terms "first", "second", "third", etc. are only used for descriptive distinction and cannot be understood as indicating or implying relative importance.

[0036] In addition, the terms "horizontal", "vertical", "overhanging", etc. do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0037] In the description of the present application, it should also be noted that, unless otherwise clearly specified and defined, the terms "arranged", "installed", "connected", and "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be a direct connection or an indirect connection through an intermediate medium, and it may be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.

[0038] The following will Figures 1 to 6 describe some embodiments of the present application in detail with reference to the accompanying drawings. Without conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0039] Combined with Figure 1 and Figure 2 the accompanying drawings, embodiments of the present application disclose an intelligent door lock, which includes a circuit board waterproof component 100, a circuit board 150 and a plug terminal 160 arranged in the circuit board waterproof component 100.

[0040] The circuit board waterproof component 100 can form a sealed space, so that the circuit board 150 and the plug terminal 160 located in the sealed space can prevent rainwater or moisture from entering the inside of the circuit board 150.

[0041] Specifically, combined with Figure 3 and Figure 4 the accompanying drawings, the circuit board waterproof component 100 includes a panel 110, a connection wire harness 120, a waterproof buckle 130 and a waterproof cover 140;

[0042] The panel 110 has an installation platform 111 inside. The installation platform 111 is provided with a sunken installation cavity 112 for installing the circuit board 150. Among them, the installation platform 111 is also provided with an outlet 113, and the outlet 113 penetrates the side wall of the installation cavity 112 and the outer side wall of the installation platform 111;

[0043] The connection wire harness 120 is located inside the panel 110 and passes through the outlet 113 to be able to be connected to the circuit board 150;

[0044] The waterproof buckle 130 is made of a flexible material or an elastic material. The waterproof buckle 130 is fixed around the connection wire harness 120 and is in extrusion fit with the outlet 113;

[0045] The waterproof cover 140 is hermetically connected to the installation platform 111 and presses the waterproof buckle 130 to seal the installation cavity 112 into a sealed space.

[0046] In this way, by providing an outlet 113 on the mounting platform 111 within the panel 110 that penetrates the side wall of the mounting cavity 112 and the outer side wall of the mounting platform 111, the connection wire harness 120 passes through the outlet 113 and is fixed by a waterproof buckle 130 outside the connection wire harness 120 that is in extrusion fit with the outlet 113. At the same time, the waterproof cover 140 seals and caps the mounting cavity 112 and presses the waterproof buckle 130. Since the waterproof buckle 130 is made of a flexible material or an elastic material, the waterproof buckle 130 can form a sealed waterproof effect with the inner wall of the outlet 113 and the waterproof cover 140, so as to seal the mounting cavity 112 into a sealed space, thereby preventing rainwater or moisture from entering the circuit board 150 and ensuring the normal operation of the entire circuit. At the same time, the circuit control signal can be transmitted through the wire harness to other devices for operation.

[0047] In addition, fixing the waterproof buckle 130 on the connection wire harness 120 can also facilitate the installation of the connection wire harness 120 and protect the connection wire harness 120 at the outlet 113.

[0048] Of course, it can be understood that the outer diameter dimension of the waterproof buckle 130 is larger than the inner diameter dimension of the outlet 113 to ensure that the part of the waterproof buckle 130 within the outlet 113 is in a compressed state. When the waterproof buckle 130 is released and reset, it can closely adhere to the inner wall of the outlet 113 to ensure the sealing effect.

[0049] The panel 110 also uses a cover plate assembly 200 to enclose one side where the mounting platform 111 is provided, maintaining the overall appearance effect of the smart door lock.

[0050] The material of the waterproof buckle 130 can be thermoplastic elastomer (TPE), which is a special polymer material that combines the thermoplasticity of plastic and the elastic properties of rubber. Of course, it can also be other similar elastic or flexible materials, such as polyurethane elastomer (PU), etc., as long as it can ensure that the waterproof buckle 130 can closely adhere to the inner wall of the outlet 113 and the waterproof cover 140 to achieve sealing.

[0051] To ensure the sealing between the waterproof buckle 130 and the connection wire harness 120, the waterproof buckle 130 and the connection wire harness 120 can be integrally formed. For example, the waterproof buckle 130 is formed on the outside of the connection wire harness 120 by an overmolding process. In this way, by pre-placing the connection wire harness 120 in a mold and then injecting a liquid elastic or flexible material, after cooling and curing, the connection wire harness 120 and the waterproof buckle 130 can form an integrally bonded component. This process can achieve seamless connection and improve the integrity and durability of the component.

[0052] Of course, in some embodiments, the waterproof buckle 130 can also be directly sleeved outside the connecting wire harness 120, and the inner diameter of the waterproof buckle 130 is smaller than the outer diameter of the connecting wire harness 120.

[0053] Optionally, in combination with Figures 3 to 5 , an annular groove 131 is formed on the outer peripheral surface of the waterproof buckle 130. The inner wall of the groove 131 includes a first side wall 132, a bottom wall 133, and a second side wall 134 that are connected in sequence. The first side wall 132 and the second side wall 134 are opposite to each other. The first side wall 132 is in close contact with the outer side wall of the mounting table 111, the second side wall 134 is in close contact with the inner side wall of the mounting cavity 112, and the bottom wall 133 is in close contact with the inner wall of the wire outlet 113. In this way, on the basis of being in close contact with the inner wall of the wire outlet 113, the waterproof buckle 130 can also be in close contact with the outer side wall of the mounting table 111 and the inner side wall of the mounting cavity 112, increasing the contact area between the waterproof buckle 130 and the panel 110 and extending the path for water vapor to enter the mounting cavity 112, thereby further improving the sealing and waterproof effect.

[0054] The waterproof buckle 130 is in the shape of a prism. The shape of the wire outlet 113 is adapted to the shape of the waterproof buckle 130, and one side of the waterproof buckle 130 is in contact with the waterproof cover 140. In this way, the side surface of the prism-shaped waterproof buckle 130 is limited by the inner wall of the wire outlet 113 and the waterproof cover 140 at the same time, playing a positioning role in preventing the connecting wire harness 120 from rotating.

[0055] A sealing cavity surrounding the outside of the mounting cavity 112 is formed at the contact between the mounting table 111 and the waterproof cover 140; the sealing cavity is used to place a sealing material, so as to realize the sealing between the mounting table 111 and the waterproof cover 140, ensuring that the circuit board 150 is in a closed space.

[0056] More specifically, one of the mounting table 111 and the waterproof cover 140 is provided with a sealing groove 114, which surrounds the outer peripheral side of the mounting cavity 112, and the other of the mounting table 111 and the waterproof cover 140 plugs the notch of the sealing groove 114 to form a sealing cavity.

[0057] Specifically, the mounting table 111 can be provided with a sealing groove 114, which surrounds the outer peripheral side of the mounting cavity 112, and the waterproof cover 140 plugs the notch of the sealing groove 114 to form the above-mentioned sealing cavity, thereby sealing between the waterproof cover 140 and the mounting table 111 and ensuring that electronic devices such as the circuit board 150 will not get wet.

[0058] Optionally, the sealing material includes waterproof silica gel. During installation, the waterproof silica gel in the sealing groove 114 can bond with the waterproof cover 140, thereby achieving the sealing between the waterproof cover 140 and the installation platform 111. At the same time, the waterproof silica gel can also play a role in improving the connection strength between the waterproof cover 140 and the panel 110 to a certain extent.

[0059] Of course, in some embodiments, the sealing material can also be other sealing fillers except waterproof silica gel, or it can be a sealing ring. The type of the sealing ring is not specifically limited, as long as it can achieve the sealing between the waterproof cover 140 and the installation platform 111 on the panel 110.

[0060] In addition, an annular rib 141 is provided on the surface of the waterproof cover 140 facing the sealing groove 114. The rib 141 is embedded in the sealing groove 114, and the gap between the rib 141 and the sealing groove 114 forms a sealing cavity. In this way, the waterproof silica gel is filled in the gap between the rib 141 and the sealing groove 114 to ensure the sealing effect.

[0061] Of course, the rib 141 abuts against the bottom wall 133 of the groove 131 on the waterproof buckle 130, thereby squeezing the waterproof buckle 130 to ensure the sealing between the waterproof cover 140 and the waterproof buckle 130. Specifically, there is a protruding portion 142 on the rib 141 corresponding to the area of the waterproof buckle 130. The protruding portion 142 abuts against the bottom wall 133 of the groove 131 on the waterproof buckle 130. In this way, by setting the protruding portion 142, it can better ensure that the waterproof cover 140 squeezes the waterproof buckle 130.

[0062] In some embodiments, it can also be that the installation platform 111 is provided with a rib 141 and the waterproof cover 140 is provided with a sealing groove 114. That is to say, as long as the other one of the installation platform 111 and the waterproof cover 140 is provided with a rib 141 surrounding the outside of the installation cavity 112, the rib 141 is embedded in the sealing groove 114.

[0063] Refer to again Figure 1 For the connection and fixation between the waterproof cover 140 and the panel 110, connection holes 115 are provided in the area of the installation platform 111 located outside the installation cavity 112. The waterproof cover 140 has an extension portion 143, and through holes 144 corresponding to the connection holes 115 are provided in the extension portion 143. Fasteners (not shown) are passed through the through holes 144 and locked with the connection holes 115 to fix the waterproof cover 140 to the panel 110. Of course, the panel 110 and the waterproof cover 140 can also be assembled in other ways such as snap connection.

[0064] In summary, the embodiments of the present application disclose a circuit board waterproof component 100 and an intelligent door lock having the circuit board waterproof component 100. By providing an outlet 113 on the mounting table 111 in the panel 110, which penetrates the side wall of the mounting cavity 112 and the outer wall of the mounting table 111, the connecting wire harness 120 passes through the outlet 113 and is fixedly engaged with the waterproof buckle 130 outside the connecting wire harness 120 by extrusion. At the same time, the waterproof cover 140 seals and covers the mounting cavity 112 and presses the waterproof buckle 130. Since the waterproof buckle 130 is made of a flexible material or an elastic material, the waterproof buckle 130 can form a sealed waterproof effect with the inner wall of the outlet 113 and the waterproof cover 140, so as to seal the mounting cavity into a sealed space, thereby preventing rainwater or moisture from entering the circuit board 150 and ensuring the normal operation of the entire circuit. At the same time, the circuit control signal can be transmitted to other devices through the wire harness for operation.

[0065] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A waterproof component for a circuit board, characterized in that, The circuit board waterproof component includes a panel (110), a connecting wire harness (120), a waterproof buckle (130), and a waterproof cover (140); The panel (110) has a mounting platform (111) therein. The mounting platform (111) is provided with a recessed mounting cavity (112) for mounting a circuit board (150). Wherein, the mounting platform (111) is further provided with an outlet (113) that penetrates the inner side wall of the mounting cavity (112) and the outer side wall of the mounting platform (111); The connecting wire harness (120) is located within the panel (110) and passes through the outlet (113) to be able to connect with the circuit board (150); The waterproof buckle (130) is made of a flexible material or an elastic material. The waterproof buckle (130) is fixedly arranged around the connecting wire harness (120) and is in extrusion fit with the outlet (113); The waterproof cover (140) is sealingly connected to the mounting platform (111) and presses the waterproof buckle (130) to seal the mounting cavity (112) into a closed space.

2. The circuit board waterproof component according to claim 1, characterized in that, The waterproof buckle (130) is integrally formed with the connecting wire harness (120); And / or, The mounting platform (111) is provided with a connection hole (115) in a region outside the mounting cavity (112). The waterproof cover (140) has an extension part (143). The extension part (143) is provided with a through hole (144) corresponding to the connection hole (115). A fastener passes through the through hole (144) and is locked with the connection hole (115) to fix the waterproof cover (140) to the panel (110).

3. The circuit board waterproof component according to claim 1, characterized in that The waterproof buckle (130) is in the shape of a prism. The shape of the outlet (113) is adapted to the shape of the waterproof buckle (130), and one side of the waterproof buckle (130) is in contact with the waterproof cover (140).

4. The circuit board waterproof component according to claim 1, characterized in that, A ring-shaped groove (131) is formed on the outer peripheral surface of the waterproof buckle (130). The inner wall of the groove (131) includes a first side wall (132), a bottom wall (133), and a second side wall (134) that are sequentially connected. The first side wall (132) and the second side wall (134) are opposite to each other. The first side wall (132) is in close contact with the outer side wall of the mounting platform (111), the second side wall (134) is in close contact with the inner side wall of the mounting cavity (112), and the bottom wall (133) is in close contact with the inner wall of the outlet (113).

5. The circuit board waterproof component according to claim 1, characterized in that A sealing cavity surrounding the mounting cavity (112) is formed at the contact between the mounting platform (111) and the waterproof cover (140); the sealing cavity is used for placing sealing materials.

6. The circuit board waterproof component according to claim 5, characterized in that, The sealing material includes a sealing ring or a sealing filler.

7. The circuit board waterproof component according to claim 5, characterized in that, One of the mounting table (111) and the waterproof cover (140) is provided with a sealing groove (114) which surrounds the outer peripheral side of the mounting cavity (112), and the other of the mounting table (111) and the waterproof cover (140) blocks the notch of the sealing groove (114) to form the sealing cavity.

8. The circuit board waterproof component according to claim 7, characterized in that, The other of the mounting table (111) and the waterproof cover (140) is provided with a convex rib (141) surrounding the outside of the mounting cavity (112), and the convex rib (141) is embedded in the sealing groove (114), and the gap between the convex rib (141) and the sealing groove (114) forms the sealing cavity.

9. The circuit board waterproof component according to claim 8, characterized in that, The mounting table (111) is provided with the sealing groove (114), and a raised portion (142) is formed on the convex rib (141) corresponding to the position of the waterproof buckle (130), and the raised portion (142) presses the waterproof buckle (130).

10. An intelligent door lock, characterized in that, It includes a circuit board (150) and the circuit board waterproof assembly according to any one of claims 1-9, the circuit board (150) is arranged in the mounting cavity (112), and the connecting wire harness (120) is connected to the circuit board (150).

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