Waterproof key assembly

Abstract

The waterproof key assembly comprises a shell, a flexible key and an abutting plate, the shell comprises a containing cavity and a key through hole communicating with the containing cavity, and the side, close to the containing cavity, of the shell comprises a first water stop bone surrounding the key through hole and a second water stop bone which surrounds the first water stop bone and is arranged at an interval with the first water stop bone; the first water stop bone and the second water stop bone form a water stop groove; the flexible key comprises a main body part at least partially located in the key through hole, an extension part surrounding the bottom of the main body part, and a flexible water stop bone which is arranged on the extension part, is spaced from the main body part and is used for being embedded into the water stop groove; the abutting plate is arranged on the side, away from the first water stop bone, of the extending part and used for making the extending part abut against the first water stop bone. Through the mode, the waterproof effect of the waterproof key assembly can be effectively improved.

Description

Technical Field

[0001] This application relates to the field of buttons, and in particular, to a waterproof button assembly. Background Art

[0002] In the field of outdoor sensing or controlling electronic devices, such as outdoor water valve timers or soil detectors, etc., due to the high temperature and heavy rain weather that easily occurs in their working environment, water vapor easily enters the interior of the housing from the gap between the button and the housing of the electronic device, causing damage to the internal circuit board. Utility Model Content

[0003] In view of this, this application proposes a waterproof button assembly.

[0004] To solve the above problems, this application proposes a waterproof button assembly, which includes:

[0005] A housing, including a receiving cavity and a button through hole communicating with the receiving cavity. One side of the housing close to the receiving cavity includes a first water-stop rib around the button through hole and a second water-stop rib around the first water-stop rib and spaced from the first water-stop rib. The first water-stop rib and the second water-stop rib form a water-stop groove; a flexible button, including a main body portion at least partially located in the button through hole, an extension portion surrounding the bottom of the main body portion, and a flexible water-stop rib provided on the extension portion and spaced from the main body portion for embedding in the water-stop groove;

[0006] Wherein, the waterproof button assembly further includes a contact plate located in the receiving cavity. The contact plate is arranged on the side of the extension portion away from the first water-stop rib for abutting the extension portion against the first water-stop rib.

[0007] In an alternative embodiment, the contact plate includes a circuit board.

[0008] In an alternative embodiment, the circuit board includes flexible button contacts corresponding to the main body portion.

[0009] In an alternative embodiment, the housing includes a fixing blind hole, the contact plate includes a fixing through hole, and the waterproof button assembly further includes a first fixing member. The first fixing member passes through the fixing through hole from the side of the contact plate away from the fixing blind hole and embeds into the fixing blind hole to fix the contact plate to the housing.

[0010] In an alternative embodiment, the housing includes a fixing adapter, and a second fixing member is arranged on the side of the contact plate facing the fixing blind hole. The contact plate is fixed to the housing by the cooperation of the second fixing member and the fixing adapter.

[0011] In an alternative embodiment, the flexible water stop bone is in interference fit with the water stop groove.

[0012] In an alternative embodiment, a first water blocking portion for abutting against the main body portion is provided on a side of the first water stop bone away from the abutting plate; and / or

[0013] At least a part of the first water stop bone is spaced apart from the main body portion.

[0014] In an alternative embodiment, a second water blocking portion is provided on a side of the extension portion away from the main body portion;

[0015] Wherein, the abutting plate is used to abut the second water blocking portion against the second water stop bone.

[0016] In an alternative embodiment, the first fixing member is a ring screw.

[0017] In an alternative embodiment, the housing includes a first sub-housing and a second sub-housing that are relatively detachable, and the first sub-housing and the second sub-housing enclose to form the accommodation cavity;

[0018] The key through hole is provided on the first sub-housing.

[0019] For the waterproof key assembly proposed in this application, a water stop groove is formed by the first water stop bone and the second water stop bone of the housing, so that the main body portion is embedded in the key through hole, the extension portion corresponds to the first water stop bone, and the flexible water stop bone is embedded to abut the extension portion against the first water stop bone. Since the flexible water stop bone and the extension portion are flexible structures, at least three water blocking structures are formed between the first water stop bone and the extension portion, between the first water stop bone and the flexible water stop bone, and between the flexible water stop bone and the second water stop bone at the connection between the flexible key and the housing. Thus, the gap between the flexible key and the housing can be effectively waterproofed, and the waterproof effect is effectively improved to prevent water vapor from entering the accommodation cavity from the gap between the flexible key and the housing, reducing the impact on the electronic devices in the accommodation cavity, so that the entire waterproof key assembly can effectively adapt to various heavy rain weather conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for description in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0021] Figure 1 It is a schematic structural diagram of the waterproof key assembly proposed in the embodiment of the present application;

[0022] Figure 2 is Figure 1Schematic diagram of a partial area of the waterproof button assembly shown;

[0023] Figure 3 is Figure 1 Schematic diagram of the structure of the housing in the waterproof button assembly shown;

[0024] Figure 4 is Figure 1 Schematic diagram of the structure of the flexible button in the waterproof button assembly shown;

[0025] Figure 5 is Figure 1 Schematic cross-sectional view of the waterproof button assembly shown;

[0026] Figure 6 is Figure 5 Enlarged schematic diagram of the partial area A of Detailed implementation manners

[0027] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0028] It should also be understood that the terms used in the specification of the present application are only for the purpose of describing specific embodiments and are not intended to limit the present application. As used in the specification of the present application and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include the plural forms.

[0029] It should be further understood that the term "and / or" used in the specification of the present application and the appended claims refers to any combination and all possible combinations of one or more of the related listed items, and includes these combinations.

[0030] As Figure 1-6 shown, the present application provides a waterproof button assembly 10, which includes a housing 100, a flexible button 200 and a contact plate 300.

[0031] As Figure 3 shown, the housing 100 includes a receiving cavity 110 and a button through hole 120 communicating with the receiving cavity 110. The housing 100 is provided with a first water stop rib 131 and a second water stop rib 132 on the side close to the receiving cavity. The first water stop rib 131 is arranged around the button through hole 120, and the second water stop rib 132 is arranged around the first water stop rib 131 and is spaced from the first water stop rib 131.

[0032] Alternatively, the first water stop rib 131 can be the annular side wall of the button through hole 120, and the second water stop rib 132 is an annular structure formed around the first water stop rib 131. A water stop groove 133 is formed between the first water stop rib 131 and the second water stop rib 132.

[0033] In an alternative embodiment, the water stop groove 133 can be a continuous annular groove or a discontinuous annular groove (i.e., there are spaced sub-grooves along the circumference of the annular groove), which is not limited here.

[0034] As Figure 4 and Figure 6 shown, the flexible button 200 includes a main body portion 210, an extension portion 220, and a flexible water stop rib 230. The main body portion 210 is at least partially located in the button through hole 120. Specifically, it can protrude out of the button through hole 120 so as to protrude from the outer surface of the housing 100. Alternatively, it can be lower than the outer surface of the housing 100, which is not limited here. The extension portion 220 is disposed around the bottom of the main body portion 210, and the flexible water stop rib 230 is disposed on the extension portion 220 and is spaced from the main body portion 210. The flexible water stop rib 230 is used to be embedded in the water stop groove 133.

[0035] As Figure 5 and Figure 6 shown, the abutting plate 300 is located in the receiving cavity 110, and the abutting plate 300 is disposed on the side of the extension portion 220 away from the first water stop rib 131. The abutting plate 300 is used to abut the extension portion 220 against the first water stop rib 131.

[0036] In an alternative embodiment, the flexible button 200 is specifically a button structure with a certain flexibility, such as it can be silicone or rubber specifically.

[0037] In an alternative embodiment, the flexible button 200 can be a flexible structure as a whole, such as the main body portion 210, the extension portion 220, and the flexible water stop rib 230 are all flexible structures.

[0038] In an alternative embodiment, the main body portion 210, the extension portion 220, and the flexible water stop rib 230 can be integrally formed.

[0039] In an alternative embodiment, the flexible button 200 can be partially a flexible structure. Specifically, the extension portion 220 and the flexible water stop rib 230 are flexible structures, while the main body portion 210 can be not a flexible structure or partially a flexible structure.

[0040] In an alternative embodiment, the flexible button 200 is installed in the button through-hole 120 from the side of the housing 100 close to the accommodation cavity 110, such that the main body portion 210 is embedded in the button through-hole 120, the extension portion 220 corresponds to the first water-stop rib 131, and the flexible water-stop rib 230 is embedded in the water-stop groove 133. Subsequently, the extension portion 220 is abutted against the first water-stop rib 131 by using the abutting plate 300. Since the flexible water-stop rib 230 and the extension portion 220 are flexible structures, at least three water-blocking structures are formed at the connection between the flexible button 200 and the housing 100, namely, between the first water-stop rib 131 and the extension portion 220, between the first water-stop rib 131 and the flexible water-stop rib 230, and between the flexible water-stop rib 230 and the second water-stop rib 132. Thus, the gap between the flexible button 200 and the housing 100 can be effectively waterproofed, and the waterproof effect is effectively improved to prevent water vapor from entering the accommodation cavity 110 through the gap between the flexible button 200 and the housing 100.

[0041] Taking Figure 6 the

[0042] perspective as an example, since a groove with an opening to the left is formed among the flexible water-stop rib 230, the extension portion 220, and the main body portion 210, and the first water-stop rib 131 and the second water-stop rib 132 form a water-stop groove 133 with an opening to the right, such that the two grooves are nested with each other, liquid can be blocked from multiple directions. Thus, no matter in what direction the waterproof button assembly 10 is placed, good water-blocking can be achieved.

[0043] In an alternative embodiment, the waterproof button assembly 10 provided in the present application can be applied to some outdoor sensor devices or outdoor controller devices, such as outdoor controllers like outdoor timing water valves, or outdoor sensors like soil detectors.

[0044] In other embodiments, the waterproof button assembly 10 provided in the present application can also be applied to other electronic devices with waterproof requirements, which are not limited herein.

[0045] In an alternative embodiment, the abutting plate 300 includes a circuit board 310, that is, it can specifically be a PCBA board.

[0046] In an alternative embodiment, the abutting plate 300 is specifically the circuit board 310.

[0047] In an alternative embodiment, the abutting plate 300 is a rigid plate, which can be used to mount the circuit board 310, and these are not limited herein.

[0048] In an alternative embodiment, the circuit board 310 includes flexible button contacts 311 correspondingly arranged with the main body portion 210, such that when the main body portion 210 is pressed, it can contact the flexible button contacts 311 and control the corresponding circuit.

[0049] Optionally, using the abutting plate 300 as the circuit board 310 and abutting the extending portion 220 against the first water-stop rib 131 can effectively save the volume of the entire waterproof button assembly 10 and facilitate the contact between the main body portion 210 and the circuit board 310.

[0050] In an alternative embodiment, the housing 100 includes a fixing blind hole (not shown in the figure), the abutting plate 300 includes a fixing through hole (not shown in the figure), and the waterproof button assembly 10 further includes a first fixing member 400. The first fixing member 400 passes through the fixing through hole from the side of the abutting plate 300 away from the fixing blind hole and is embedded in the fixing blind hole to fix the abutting plate 300 to the housing 100, that is, the first fixing member 400 sequentially enters the fixing through hole and the fixing blind hole from the side of the abutting plate 300 away from the fixing blind hole 140 to fix the abutting plate 300 to the housing 100, so that the abutting plate 300 abuts the extending portion 220 against the first water-stop rib 131.

[0051] Optionally, by providing a fixing blind hole on the housing 100 and fixing the abutting plate 300 to the housing 100 from the side in the direction of the accommodating cavity 110, the occurrence of gaps on the housing 100 can be effectively reduced, ensuring the waterproof effect.

[0052] In other embodiments, the housing 100 includes a fixing adapter (not shown in the figure), and a second fixing member (not shown in the figure) is provided on the side of the abutting plate 300 facing the fixing adapter. The abutting plate 300 is fixed to the housing through the cooperation of the second fixing member and the fixing adapter.

[0053] Optionally, the fixing adapter and the second fixing member can be a snap structure or a nested structure, which are not limited herein.

[0054] In an alternative embodiment, the flexible water stop bone 230 is in interference fit with the water stop groove 133, that is, the size of the flexible water stop bone 230 can be slightly larger than that of the water stop groove 133, so that the flexible water stop bone 230 will be deformed to a certain extent in the water stop groove 133, thereby making the contact between the flexible water stop bone 230, the first water stop bone 131 and the second water stop bone 132 closer, effectively improving the waterproof effect.

[0055] Optionally, through the interference fit, it can adapt to different temperature climates and reduce the problem of poor contact caused by temperature changes.

[0056] Such as Figure 6 As shown, a first water blocking portion 1311 for abutting against the main body portion 210 is provided on the side of the first water stop bone 131 away from the abutting plate 300. Optionally, the first water blocking portion 1311 can also be circumferentially abutted against the main body portion 210 in a ring shape, so that a blocking structure for blocking dust / liquid from entering can be formed between the first water blocking portion 1311 and the main body portion 210.

[0057] In an alternative embodiment, at least a part of the first water stop bone 131 is spaced from the main body portion 210, that is, there is a gap between at least a part of the first water stop bone 131 and the main body portion 210, which can effectively reduce the friction between the first water stop bone 131 and the main body portion 210, so that when the main body portion 210 is pressed, it will not receive too much resistance, and at the same time, the installation difficulty is also reduced.

[0058] Such as Figure 2 and Figure 6 As shown, a second water blocking portion 221 is provided on the side of the extension portion 220 away from the main body portion 210; the abutting plate 300 is used to abut the second water blocking portion 221 against the second water stop bone 132.

[0059] Optionally, by providing the second water blocking portion 221 and using the abutting plate 300 to abut the second water blocking portion 221 against the second water stop bone 132, on the one hand, the contact between the abutting plate 300 and the extension portion 220 can be improved, so that the flexible water stop bone 230 will not be deformed due to unilateral force, making the flexible water stop bone 230 better embedded in the water stop groove 133, and at the same time, the second water blocking portion 221 and the second water stop bone 132 further form a water blocking structure to improve its water blocking performance.

[0060] In an alternative embodiment, the first fixing member 400 is a ring screw. Optionally, by setting the first fixing member 400 as a ring screw, the fixing stability between the abutting plate 300 and the housing 100 can be better ensured, the influence of stress change caused by temperature can be reduced, thereby improving the abutting property of the abutting plate 300 against the extension portion 220, and further improving its waterproof performance.

[0061] Such asFigure 1 and Figure 5 As shown in Figure 5 , the housing 100 includes a first sub-housing 160 and a second sub-housing 170 that are relatively detachable, and the first sub-housing 160 and the second sub-housing 170 enclose to form a receiving cavity 110.

[0062] Among them, the button through-hole 120 is provided on the first sub-housing 160.

[0063] Optionally, by setting the housing 100 as a relatively detachable first sub-housing 160 and second sub-housing 170, it is convenient to install the abutting plate 300 and the flexible button 200 on the housing 100 from one side of the receiving cavity 110.

[0064] In summary, the present application provides a waterproof button assembly 10. The first water-stop rib 131 and the second water-stop rib 132 of the housing 100 form a water-stop groove 133, so that the main body portion 210 is embedded in the button through-hole 120, the extension portion 220 corresponds to the first water-stop rib 131, and the flexible water-stop rib 230 is embedded in the water-stop groove 133. Subsequently, the extension portion 220 is abutted against the first water-stop rib 131 by using the abutting plate 300. Since the flexible water-stop rib 230 and the extension portion 220 are flexible structures, at least three water-blocking structures are formed between the first water-stop rib 131 and the extension portion 220, between the first water-stop rib 131 and the flexible water-stop rib 230, and between the flexible water-stop rib 230 and the second water-stop rib 132 at the connection between the flexible button 200 and the housing 100. Thus, the gap between the flexible button 200 and the housing 100 can be effectively waterproofed, and the waterproof effect is effectively improved to prevent water vapor from entering the receiving cavity 110 from the gap between the flexible button 200 and the housing 100, so that the entire waterproof button assembly 10 can effectively adapt to various heavy rain weather conditions.

[0065] Without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0066] The above is only the specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present application can easily think of various equivalent modifications or substitutions, and these modifications or substitutions should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A waterproof button assembly, characterized in that: The waterproof button assembly comprises: The housing comprises a receiving cavity and a key through hole connected to the receiving cavity, wherein the housing comprises a first water stop bone around the key through hole and a second water stop bone around the first water stop bone and spaced apart from the first water stop bone on one side of the housing near the receiving cavity, wherein the first water stop bone and the second water stop bone form a water stop groove; The flexible button comprises a main body at least partially located in the button through hole, an extension surrounding the bottom of the main body, and a flexible water stop bone arranged on the extension and spaced from the main body and used to be embedded in the water stop groove; Wherein, the waterproof button assembly further includes an abutment plate located in the accommodating cavity, and the abutment plate is arranged on a side of the extension portion away from the first water stop bone, and is used to abut the extension portion against the first water stop bone.

2. The waterproof key assembly according to claim 1, characterized in that: The abutment plate includes a circuit board.

3. The waterproof key assembly according to claim 2, characterized in that: The circuit board includes flexible key contacts arranged corresponding to the main body.

4. The waterproof key assembly according to claim 1, characterized in that: The shell includes a fixing blind hole, the abutment plate includes a fixing through hole, and the waterproof button assembly also includes a first fixing member, which passes through the fixing through hole from a side of the abutment plate away from the fixing blind hole and is embedded in the fixing blind hole to fix the abutment plate to the shell.

5. The waterproof key assembly according to claim 4, characterized in that: The shell comprises a fixing adapter, a second fixing piece is arranged on a side of the abutment plate facing the fixing blind hole, and the abutment plate is fixed to the shell by cooperating with the fixing adapter through the second fixing piece.

6. The waterproof key assembly according to claim 1, characterized in that: The flexible water-stopping bone is interference-fitted with the water-stopping groove.

7. The waterproof key assembly according to claim 1, characterized in that: A first water retaining portion for abutting against the main body is provided on a side of the first water stop bone away from the abutting plate; and / or The first water stop bone is at least partially spaced apart from the main body.

8. The waterproof key assembly according to claim 1, characterized in that: A second water retaining portion is provided on one side of the extension portion away from the main body portion; Wherein, the abutment plate is used to abut the second water retaining part against the second water stop bone.

9. The waterproof key assembly according to claim 4, characterized in that: The first fixing member is a ring screw.

10. The waterproof key assembly according to any one of claims 1 to 9, characterized in that: The housing comprises a first sub-housing and a second sub-housing which are relatively detachable, and the first sub-housing and the second sub-housing are enclosed to form the accommodating cavity; The button through hole is arranged on the first sub-shell.

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