Waterproof key

Abstract

The utility model relates to a waterproof key, which comprises a shell, a circuit board, a waterproof soft cushion and a key cover. The shell comprises a front shell and a rear shell, and the front shell is provided with a receding window. The circuit board is arranged in the shell, and a plurality of trigger points are arranged on the circuit board. And the waterproof soft cushion is clamped between the front shell and the rear shell and seals the circuit board in the shell, a plurality of pressing parts are arranged on the waterproof soft cushion, the plurality of pressing parts are respectively aligned with the plurality of trigger points, and the waterproof soft cushion is provided with an outer convex part which extends out of the front shell through the abdicating window. The key cover is connected to the outer protruding part and comprises a key plate and a plurality of pressing columns connected to the inner side of the key plate, and the pressing columns are aligned to the pressing parts respectively. The plurality of pressing columns are connected to the key board with a larger area, the key board has a larger touch area, and the pressing hand feeling is improved by touching the key board for pressing. And moreover, the outer convex part extends out of the front shell through the abdicating window, and the outer convex part has flexibility, so that the key board can be smoothly pressed and rebounded.

Description

Technical Field

[0001] The utility model relates to the field of buttons, in particular to a waterproof button. Background Art

[0002] With the advancement of science and technology and the development of economy, more and more electronic smart devices have entered people's daily life, such as smart toilets, televisions, air conditioners, etc. Electronic devices are generally equipped with remote controls for users to quickly operate. Waterproof buttons have become a new trend in the development of remote controls, especially for bathroom electronic devices.

[0003] Waterproof buttons usually use soft silicone for waterproof sealing. For example, the remote control includes a back shell, a front shell, a circuit board, a silicone pad and a button cap. The silicone pad is sandwiched between the back shell and the front shell, and the circuit board is sealed in the back shell. A plurality of button shrapnel is provided on the circuit board, and a plurality of pressing parts are provided on the silicone pad. The pressing parts correspond to the plurality of button shrapnel respectively. A plurality of button caps are provided, and each of them corresponds to the plurality of pressing parts respectively. The button caps protrude from the front shell through the button holes on the front shell for pressing. However, when assembling this remote control, the button caps need to be placed one by one in the corresponding button holes, and the assembly process is relatively time-consuming. In addition, the contact surface of each independent button cap for pressing is small, and the pressing feel is not good. Utility Model Content

[0004] The purpose of the utility model is to provide a waterproof key to solve the problems raised in the above background technology.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions.

[0006] The utility model provides a waterproof key, which comprises: a housing, comprising a front housing and a rear housing, wherein a yielding window is arranged on the front housing;

[0007] A circuit board is arranged in the housing, and a plurality of trigger points are arranged on the circuit board;

[0008] A waterproof cushion is sandwiched between the front shell and the rear shell, and the circuit board is enclosed in the shell. The waterproof cushion is provided with a plurality of pressing parts, and the plurality of pressing parts are respectively aligned with the plurality of trigger points. The waterproof cushion has an outer protrusion extending out of the front shell through the clearance window.

[0009] The key cover is connected to the outer protrusion, and the key cover comprises a key plate and a plurality of pressing posts connected to the inner side of the key plate, wherein the pressing posts are respectively aligned with the plurality of pressing parts.

[0010] In some embodiments of the present application, the front shell includes a side shell and a retaining ring;

[0011] The retaining ring is connected to the top edge of the side shell, the retaining ring encloses the clearance window, and the retaining ring has a clamping portion protruding to the inner side of the side shell;

[0012] The rear shell is connected to the bottom of the side shell;

[0013] The waterproof cushion is sandwiched between the clamping portion and the rear shell.

[0014] In some embodiments of the present application, the waterproof cushion further includes a main body;

[0015] The outer protrusion is connected to the main body, and a step surface is provided between the outer protrusion and the main body;

[0016] The clamping portion contacts the step surface and clamps the main body between the clamping portion and the rear case.

[0017] In some embodiments of the present application, a card slot is provided on the side shell;

[0018] The rear shell is provided with a clamping rib;

[0019] The clamping rib is clamped in the clamping slot.

[0020] In some embodiments of the present application, the waterproof cushion is provided with a plurality of support columns;

[0021] A plurality of the support columns are distributed at intervals on the edge of the waterproof cushion, and the support columns protrude from the top surface of the waterproof cushion;

[0022] The keypad is supported on a plurality of the support columns and is spaced apart from the top surface of the waterproof cushion.

[0023] In some embodiments of the present application, the waterproof cushion is provided with a plurality of sets of coaxially arranged outer sleeves and inner sleeves;

[0024] The inner sleeve is arranged on the inner side of the outer sleeve, and the inner sleeve and the outer sleeve are connected by a thin wall;

[0025] The bottom of the inner sleeve forms the pressing portion;

[0026] The pressing column is inserted into the inner sleeve.

[0027] In some embodiments of the present application, the key cover further includes a first positioning portion connected to the inner side of the key plate;

[0028] The waterproof cushion is provided with a second positioning portion;

[0029] The first positioning portion and the second positioning portion form a positioning match;

[0030] The plurality of pressing portions are symmetrically arranged on both sides of the first positioning portion;

[0031] The first positioning portion is a positioning column;

[0032] The second positioning portion is a positioning groove;

[0033] The positioning column is inserted into the positioning groove and fixed by bonding.

[0034] In some embodiments of the present application, the waterproof cushion is made of a light-transmitting material.

[0035] In some embodiments of the present application, the rear shell is provided with a threading hole;

[0036] The wire threading hole is used for the wire connected to the circuit board to pass through, and the wire threading hole is sealed with insulating glue.

[0037] In some embodiments of the present application, the waterproof cushion is provided with a yield groove;

[0038] The circuit board is embedded in the recess.

[0039] It can be seen from the above technical solutions that the embodiments of the utility model have at least the following advantages and positive effects:

[0040] In the waterproof key of the embodiment of the utility model, the shell, the circuit board and the waterproof cushion are first assembled, the multiple pressing columns on the key cover are respectively aligned with the multiple pressing parts, and then the key cover and the outer protrusion are connected to complete the assembly of the waterproof key with multiple key positions.

[0041] The plurality of pressing columns are all connected to a keypad with a larger area, and the keypad has a larger touch area, and the pressing feel is improved by pressing the keypad in contact with the keypad. In addition, the outer protrusion extends out of the front shell through the clearance window, and the outer protrusion is flexible, ensuring that the keypad can be pressed and rebounded smoothly. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] The various objects, features and advantages of the present invention will become more apparent by considering the following detailed description of the preferred embodiments of the present invention in conjunction with the accompanying drawings. The accompanying drawings are only exemplary illustrations of the present invention and are not necessarily drawn to scale. In the accompanying drawings, the same reference numerals always represent the same or similar parts. Among them:

[0043] Figure 1 is a schematic structural diagram of a waterproof button according to an exemplary embodiment.

[0044] Figure 2 yes Figure 1 Schematic diagram of the structure from another angle.

[0045] Figure 3 yes Figure 1 sectional view of .

[0046] Figure 4 yes Figure 1 Schematic diagram of the decomposition structure.

[0047] The following are the descriptions of the reference numerals:

[0048] 1. Shell; 11. Front shell; 111. Make way window; 112. Side shell; 1121. Slot; 113. Retaining ring; 1131. Clamping part; 12. Rear shell; 121. Clamping rib; 122. Threading hole; 2. Circuit board; 3. Waterproof cushion; 31. Pressing part; 32. Outer protrusion; 33. Main body; 34. Support column; 35. Outer sleeve; 36. Inner sleeve; 37. Second positioning part; 4. Key cover; 41. Key board; 42. Pressing column; 43. First positioning part. DETAILED DESCRIPTION

[0049] Although the present invention can be easily embodied as embodiments of different forms, only some of the specific embodiments are shown in the drawings and described in detail in this specification. It should be understood that this description should be regarded as an exemplary description of the principles of the present invention and is not intended to limit the present invention to that described herein.

[0050] Thus, a feature indicated in this specification will be used to illustrate one of the features of an embodiment of the utility model, rather than implying that each embodiment of the utility model must have the described feature. In addition, it should be noted that this specification describes many features. Although some features can be combined together to illustrate possible system designs, these features can also be used in other combinations that are not explicitly described. Thus, unless otherwise stated, the described combinations are not intended to be limiting.

[0051] In the embodiments shown in the drawings, the indications of directions (such as up, down, left, right, front and back) used to explain the structure and movement of various elements of the utility model are not absolute but relative. These descriptions are appropriate when these elements are in the positions shown in the drawings. If the descriptions of the positions of these elements change, the indications of these directions also change accordingly.

[0052] See also Figures 1 to 4 The waterproof key provided by an embodiment of the utility model mainly includes a housing 1, a circuit board 2, a waterproof cushion 3 and a key cover 4.

[0053] The housing 1 includes a front housing 11 and a rear housing 12, and a clearance window 111 is provided on the front housing 11. A circuit board 2 is provided in the housing 1, and a plurality of trigger points are provided on the circuit board 2. A waterproof cushion 3 is sandwiched between the front housing 11 and the rear housing 12, and the circuit board 2 is enclosed in the housing 1. A plurality of pressing parts 31 are provided on the waterproof cushion 3, and the plurality of pressing parts 31 are respectively aligned with the plurality of trigger points. The waterproof cushion 3 has an outer protrusion 32 extending out of the front housing 11 through the clearance window 111. The key cover 4 is connected to the outer protrusion 32, and the key cover 4 includes a key plate 41 and a plurality of pressing posts 42 connected to the inner side of the key plate 41, and the pressing posts 42 are respectively aligned with the plurality of pressing parts 31.

[0054] Through the above structural design, the shell 1, circuit board 2 and waterproof cushion 3 are first assembled, the multiple pressing columns 42 on the key cover 4 are respectively aligned with the multiple pressing parts 31, and then the key cover 4 and the protruding part 32 are connected to complete the assembly of the waterproof key with multiple key positions.

[0055] The plurality of pressing posts 42 are all connected to a keypad 41 with a larger area. The keypad 41 has a larger touch area, and the pressing feel is improved by pressing the keypad 41. In addition, the outer protrusion 32 extends out of the front housing 11 through the clearance window 111, and the outer protrusion 32 is flexible, ensuring that the keypad 41 can be pressed smoothly and rebound.

[0056] Through the waterproof sealing design, the problem of water entering the circuit board 2 causing the circuit board 2 to short-circuit and fail its electronic functions can be avoided in a high temperature and high humidity environment, ensuring that the waterproof button can work normally in a long-term high temperature and high humidity environment and achieve the designed service life cycle.

[0057] The waterproof cushion 3 can be a silicone cushion. The trigger point can be a key shrapnel. The waterproof cushion 3 and the outer protrusion 32 can be bonded by glue.

[0058] The front shell 11 includes a side shell 112 and a retaining ring 113. The retaining ring 113 is connected to the top edge of the side shell 112, and the retaining ring 113 encloses and forms a clearance window 111, and the retaining ring 113 has a clamping portion 1131 protruding to the inside of the side shell 112. The rear shell 12 is connected to the bottom of the side shell 112. The waterproof cushion 3 is clamped between the clamping portion 1131 and the rear shell 12, so that the waterproof cushion 3 can be clamped more stably to ensure that the waterproof cushion 3 will not fall out of the clearance window 111.

[0059] The waterproof cushion 3 is provided with a clearance groove. The circuit board 2 is embedded in the clearance groove. During the assembly process of the waterproof key, the waterproof cushion 3 can be first placed in the front shell 11 to abut against the clamping part 1131, and then the circuit board 2 is embedded in the clearance groove, the rear shell 12 is connected to the front shell 11, and finally the key cover 4 and the waterproof cushion 3 are connected.

[0060] The waterproof cushion 3 further includes a main body 33. The outer protrusion 32 is connected to the main body 33, and a step surface is provided between the outer protrusion 32 and the main body 33. The clamping portion 1131 contacts the step surface and clamps the main body 33 between the clamping portion 1131 and the rear shell 12.

[0061] The side shell 112 is provided with a slot 1121, and the rear shell 12 is provided with a clamping rib 121, which is clamped in the slot 1121. The front shell 11 and the rear shell 12 adopt a clamping structure to facilitate installation and disassembly.

[0062] The waterproof cushion 3 is provided with a plurality of support columns 34. The plurality of support columns 34 are distributed at intervals on the edge of the waterproof cushion 3, and the support columns 34 protrude from the top surface of the waterproof cushion 3. The keypad 41 is supported on the plurality of support columns 34 and is spaced apart from the top surface of the waterproof cushion 3.

[0063] Multiple support columns 34 lift up the key panel 41, making the key panel 41 easier to press, and multiple support columns 34 are located at the edge of the key panel 41, so that the gap between the key panel 41 and the top surface of the waterproof cushion 3 is as consistent as possible, thereby improving the uniformity of light transmittance of the lamp beads on the circuit board 2.

[0064] The waterproof cushion 3 is provided with a plurality of sets of coaxially arranged outer sleeves 35 and inner sleeves 36. The inner sleeve 36 is arranged inside the outer sleeve 35, and the inner sleeve 36 and the outer sleeve 35 are connected by a thin wall. The bottom of the inner sleeve 36 forms a pressing portion 31. The pressing column 42 is inserted into the inner sleeve 36. The thin wall connection makes the inner sleeve 36 have greater elasticity than the outer sleeve 35, which is convenient for pressing.

[0065] The key cover 4 also includes a first positioning portion 43 connected to the inner side of the key plate 41 . The waterproof cushion 3 is provided with a second positioning portion 37 . The first positioning portion 43 and the second positioning portion 37 form a positioning fit. The plurality of pressing portions 31 are symmetrically arranged on both sides of the first positioning portion 43 .

[0066] The first positioning portion 43 and the second positioning portion 37 are used to form a positioning match to prevent the key cover 4 from shifting relative to the outer protrusion 32 , thereby improving the position stability of the key cover 4 .

[0067] The first positioning part 43 is a positioning column, and the second positioning part 37 is a positioning groove. The positioning column is inserted into the positioning groove and fixed by bonding. The positioning column and the positioning groove are positioned and matched with each other with a stable stroke, so as to keep the position of the key cover 4 stable.

[0068] In this embodiment, two trigger points are provided on the circuit board 2, two pressing parts 31 are provided on the waterproof cushion 3, and the key cover 4 includes two pressing columns 42. The two pressing parts 31 are respectively located on both sides of the positioning groove.

[0069] The rear shell 12 is provided with a threading hole 122 for the wires connected to the circuit board 2 to pass through. The threading hole 122 is sealed with insulating glue to prevent water drops from penetrating through the threading hole 122 and causing a short circuit in the circuit board 2.

[0070] In this embodiment, the waterproof cushion 3 is made of a light-transmitting material, and the outer protrusion 32 is exposed on the circumferential side of the key plate 41 to form a ring-shaped ambient light, which can provide lighting in a dark environment and make the waterproof key more beautiful.

[0071] Although the utility model has been described with reference to several typical embodiments, it should be understood that the terms used are illustrative and exemplary, rather than restrictive. Since the utility model can be implemented in a variety of forms without departing from the spirit or essence of the utility model, it should be understood that the above-mentioned embodiments are not limited to any of the aforementioned details, but should be widely interpreted within the spirit and scope defined by the attached claims, so all changes and modifications falling within the scope of the claims or their equivalents should be covered by the attached claims.

Claims

1. A waterproof button, characterized in that: include: The housing comprises a front housing and a rear housing, wherein the front housing is provided with a clearance window; A circuit board is arranged in the housing, and a plurality of trigger points are arranged on the circuit board; A waterproof cushion is sandwiched between the front shell and the rear shell, and the circuit board is enclosed in the shell. The waterproof cushion is provided with a plurality of pressing parts, and the plurality of pressing parts are respectively aligned with the plurality of trigger points. The waterproof cushion has an outer protrusion extending out of the front shell through the clearance window. The key cover is connected to the outer protrusion, and the key cover comprises a key plate and a plurality of pressing posts connected to the inner side of the key plate, wherein the pressing posts are respectively aligned with the plurality of pressing parts.

2. The waterproof button according to claim 1, characterized in that: The front shell includes a side shell and a retaining ring; The retaining ring is connected to the top edge of the side shell, the retaining ring encloses the clearance window, and the retaining ring has a clamping portion protruding to the inner side of the side shell; The rear shell is connected to the bottom of the side shell; The waterproof cushion is sandwiched between the clamping portion and the rear shell.

3. The waterproof key according to claim 2, characterized in that: The waterproof cushion also includes a main body; The outer protrusion is connected to the main body, and a step surface is provided between the outer protrusion and the main body; The clamping portion contacts the step surface and clamps the main body between the clamping portion and the rear case.

4. The waterproof key according to claim 2, characterized in that: The side shell is provided with a card slot; The rear shell is provided with a clamping rib; The clamping rib is clamped in the clamping slot.

5. The waterproof key according to claim 1, characterized in that: The waterproof cushion is provided with a plurality of supporting columns; A plurality of the support columns are distributed at intervals on the edge of the waterproof cushion, and the support columns protrude from the top surface of the waterproof cushion; The keypad is supported on a plurality of the support columns and is spaced apart from the top surface of the waterproof cushion.

6. The waterproof key according to claim 1, characterized in that: The waterproof cushion is provided with a plurality of sets of coaxially arranged outer sleeves and inner sleeves; The inner sleeve is arranged on the inner side of the outer sleeve, and the inner sleeve and the outer sleeve are connected by a thin wall; The bottom of the inner sleeve forms the pressing portion; The pressing column is inserted into the inner sleeve.

7. The waterproof key according to claim 1, characterized in that: The key cover also includes a first positioning portion connected to the inner side of the key plate; The waterproof cushion is provided with a second positioning portion; The first positioning portion and the second positioning portion form a positioning match; The plurality of pressing portions are symmetrically arranged on both sides of the first positioning portion; The first positioning portion is a positioning column; The second positioning portion is a positioning groove; The positioning column is inserted into the positioning groove and fixed by bonding.

8. The waterproof key according to claim 1, characterized in that: The waterproof cushion is made of light-transmitting material.

9. The waterproof key according to claim 1, characterized in that: The rear shell is provided with a threading hole; The wire threading hole is used for the wire connected to the circuit board to pass through, and the wire threading hole is sealed with insulating glue.

10. The waterproof key according to claim 1, characterized in that: The waterproof cushion is provided with a giving way groove; The circuit board is embedded in the recess.

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