CN220272343U

CN220272343U - Waterproof assembly, waterproof switch and near-to-eye display device

Info

Publication number: CN220272343U
Application number: CN202321625016.2U
Authority: CN
Inventors: 秦东升; 张光强
Original assignee: Shanghai Okra Zoom Instrument Co ltd
Current assignee: Shanghai Okra Zoom Instrument Co ltd
Priority date: 2023-06-25
Filing date: 2023-06-25
Publication date: 2023-12-29
Anticipated expiration: 2033-06-25

Abstract

The utility model belongs to the technical field of electrical appliance protection, and discloses a waterproof assembly, a waterproof switch and a near-to-eye display device. The assembly is used for protecting a waterproof switch, the waterproof switch is arranged in a shell, and a mounting groove is formed in the shell; the assembly comprises a spring pad and a key cap, wherein the spring pad is arranged in a mounting groove, a through hole is formed in the bottom of the mounting groove, the spring pad comprises a connecting part which is annularly arranged on the periphery of the spring pad and a triggering part which penetrates through the through hole, the connecting part is glued with the mounting groove, the triggering part can extrude a key of a waterproof switch, and the key cap is arranged on the spring pad and is used for extruding the spring pad; the waterproof switch comprises a key and the waterproof component; the near-eye display device includes a housing and a waterproof assembly. The utility model can lead the waterproof switch of the near-to-eye display device to reach the IP67 protection level, simultaneously reduce the number of parts, reduce assembly procedures and reduce production cost.

Description

Waterproof assembly, waterproof switch and near-to-eye display device

Technical Field

The utility model relates to the technical field of electrical appliance protection, in particular to a waterproof assembly, a waterproof switch and a near-to-eye display device.

Background

A switch is an electrical contact switching apparatus for supplying or shutting off an electric current, and is installed in various industrial devices, machines, or vehicles. The switch comprises: a fixed contact and a movable contact that selectively make contact with each other; and an electric brake for driving the movable contact according to the electric signal to allow the fixed contact and the movable contact to be brought into contact with each other or separated from each other. Along with the development of display technology, near-eye technology for enhancing display or virtual reality is increasingly widely applied, and the waterproof and dustproof problems of a switch of a near-eye display device are needed to be solved.

According to the related standards, the switch and the near-eye display device having waterproof and dustproof functions are required to have a certain protection level, wherein the IP67 protection level requires protection dust inhalation (contact prevention as a whole, protection dust penetration), and protection is soaked in a short time (immersion prevention), so that the switch and the near-eye display device are required to be attached with waterproof components to achieve the IP67 protection level.

At present, for the switch capable of achieving the IP67 protection level, the waterproof assembly structure is complex, the assembly process is numerous, and the production cost is further increased.

Disclosure of Invention

The utility model aims to provide a waterproof assembly, a waterproof switch and a near-eye display device, which can enable the waterproof switch of the near-eye display device to reach the IP67 protection level, reduce the number of parts, reduce assembly procedures and reduce production cost.

To achieve the purpose, the utility model adopts the following technical scheme:

the waterproof assembly is used for protecting a waterproof switch, the waterproof switch is arranged in the shell, and the shell is provided with a mounting groove; the waterproof assembly includes:

the elastic pad is arranged in the mounting groove, a through hole is formed in the bottom of the mounting groove, the elastic pad comprises a connecting part which is annularly arranged on the circumference of the elastic pad and a triggering part which penetrates through the through hole, the connecting part is glued with the mounting groove, and the triggering part can press a key of the waterproof switch;

the key cap is arranged on the spring pad and used for extruding the spring pad.

As an alternative to a waterproof assembly, the connection portion is annular, and the surface of the connection portion glued to the mounting groove is a plane.

As an alternative of the waterproof assembly, an adhesive joint part is arranged at the bottom of the installation groove, the shape of the connecting part is matched with that of the adhesive joint part, and the connecting part is adhered to the adhesive joint part.

As an alternative scheme of waterproof assembly, trigger portion include trigger boss and with trigger boss is connected extend the post, extend the post and wear to locate the through-hole, trigger the boss and can extrude waterproof switch's button.

As an alternative to a waterproof assembly, the trigger boss has a diameter greater than the diameter of the through hole.

As an alternative to a waterproof assembly, the trigger boss is provided with a chamfer at an end remote from the housing.

As an alternative scheme of the waterproof assembly, one end of the extending column, which is far away from the trigger boss, is annularly provided with an elastic part, one end of the elastic part, which is far away from the extending column, is connected with one end of the connecting part, which is far away from the inner wall of the mounting groove, and the keycap is abutted to the elastic part.

As an alternative of the waterproof assembly, a deformation groove is formed at one end of the elastic portion away from the keycap.

As an alternative scheme of the waterproof assembly, the extending column is provided with a clamping groove along the extending direction of the extending column, the bottom of the key cap is provided with a clamping block, and the clamping block can be clamped in the clamping groove.

The waterproof switch comprises a key and the waterproof assembly according to any scheme.

As an alternative to a waterproof switch, the waterproof switch can reach an IP67 protection level, the IP67 protection level being configured to block dust from entering the inside of the waterproof switch, and can be waterproof under 1m of water immersion.

The near-eye display device comprises a shell and further comprises the waterproof switch in any scheme.

The beneficial effects are that:

according to the first aspect of the utility model, the waterproof switch is arranged on the shell and used for waterproof and dustproof purposes, but the waterproof switch needs to be triggered to be turned on and turned off by external force, so that the shell is required to be provided with the mounting groove, the mounting groove leads to the communication between the interior of the shell and the external environment, and dust and water in the external environment can easily enter the interior of the shell; the elastic pad arranged in the mounting groove is used for triggering the keys of the waterproof switch by using the elasticity of the elastic pad, and further, the connecting part is annularly arranged on the connecting part in the circumferential direction of the elastic pad and is glued with the mounting groove, so that the connecting part is isolated at two sides of the glued part, dust and water outside the waterproof switch are prevented from entering the waterproof switch, the glue-bonding mode is adopted for effectively blocking the entry of the dust and the immersion of the water, the waterproof switch can reach the protection grade of IP67, the waterproof and dustproof capabilities of the waterproof switch are improved, the waterproof switch is more suitable for a severe operation environment, in addition, only one part of the elastic pad is used for triggering the waterproof switch, the waterproof and dustproof modes can be used, the whole assembly is more compact in structure, the number of parts is small, and the cost of the waterproof assembly is effectively reduced; further, the assembly also comprises a keycap, and the keycap is arranged above the spring pad, so that an operator can conveniently press the keycap manually to squeeze the spring pad;

according to the second aspect of the utility model, the waterproof switch with the waterproof assembly can reach the protection level of IP67, meanwhile, parts are fewer, and the whole structure is compact;

in a third aspect of the present utility model, a near-to-eye display device equipped with the waterproof switch has excellent waterproof and dustproof properties, and is less limited to the use environment.

Drawings

Fig. 1 is a cross-sectional view of a waterproof switch with a waterproof assembly provided by an embodiment of the present utility model;

fig. 2 is an exploded view of a waterproof switch with a waterproof assembly provided in an embodiment of the present utility model;

fig. 3 is an exploded view of a near-eye display device according to an embodiment of the utility model.

In the figure:

100. a waterproof switch; 110. a key;

1. a housing; 11. a mounting groove; 111. a through hole; 112. a glue joint;

2. a spring pad; 21. a connection part; 22. a trigger part; 221. triggering the boss; 2211. chamfering; 222. an extension column; 223. a clamping groove; 23. an elastic part; 231. a deformation groove;

3. a key cap; 31. and a clamping block.

Detailed Description

The utility model is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present utility model are shown in the drawings.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", etc. orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description and simplicity of operation, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.

Referring to fig. 1 and 2, a first aspect of the present embodiment relates to a waterproof assembly (hereinafter referred to as "assembly") for protecting a waterproof switch 100, wherein the waterproof switch 100 is disposed in a housing 1, and a mounting groove 11 is formed in the housing 1; the waterproof assembly includes: the waterproof switch comprises a spring pad 2 and a key cap 3, wherein the spring pad 2 is arranged in a mounting groove 11, a through hole 111 is formed in the bottom of the mounting groove 11, the spring pad 2 comprises a connecting part 21 which is annularly arranged on the periphery of the spring pad 2 and a triggering part 22 which penetrates through the through hole 111, the connecting part 21 is glued with the mounting groove 11, and the triggering part 22 can press a key 110 of the waterproof switch 100; the keycap 3 is arranged on the spring pad 2 and is used for extruding the spring pad 2.

In the present embodiment, the waterproof switch 100 is provided on the housing 1 for waterproof and dustproof purposes of the waterproof switch 100, but the waterproof switch 100 needs to be triggered to be turned on and off by an external force, so that the housing 1 needs to be provided with the installation groove 11, but the installation groove 11 causes communication between the interior of the housing 1 and the external environment, so that dust and water in the external environment can easily enter the interior of the housing 1; the elastic pad 2 arranged in the mounting groove 11 is utilized to enable the triggering part 22 to trigger the key 110 of the waterproof switch 100 by utilizing the elasticity of the elastic pad 2, and further, the connecting part 21 is annularly arranged on the connecting part 21 in the circumferential direction of the elastic pad 2 and is glued with the mounting groove 11, so that the connecting part 21 is isolated at two sides of a glued joint, dust and water outside are prevented from entering the waterproof switch 100, the glue joint mode is adopted to effectively block the entry of the dust and the immersion of the water, the waterproof switch 100 can be enabled to reach the protection level of IP67, the waterproof and dustproof capabilities of the waterproof switch 100 are improved, the waterproof switch 100 is enabled to be more suitable for severe operation environments, in addition, in the embodiment, only one part of the elastic pad 2 can trigger the waterproof switch 100, the waterproof and dustproof can be performed by utilizing the glue joint mode, the whole assembly is compact in structure and small in number of parts, and the cost of the waterproof assembly is effectively reduced; in this embodiment, the assembly further comprises a keycap 3, wherein the keycap 3 is arranged above the spring pad 2, so that an operator can conveniently press the keycap 3 manually to press the spring pad 2.

Alternatively, the connecting portion 21 may be annular, and the surface of the connecting portion 21 bonded to the mounting groove 11 may be planar. Specifically, the elastic pad 2 is a circumferential revolving body, and the connecting part is in a circular ring shape, which is beneficial to the molding of the die; in addition, the cementing surface of the connecting part 21 and the mounting groove 11 is designed to be a plane, so that the processing is convenient, and the gluing is also convenient.

Further, by mechanically treating the bonding surface of the joint portion 21 with the mounting groove 11, specifically, the roughness can be adjusted to enhance the strength of bonding.

Optionally, the bottom of the mounting groove 11 is provided with a glue joint 112, and a surface of the connecting portion 21 facing the glue joint 112 is adhered to the glue joint 112. The glue joint 112 is used to define a glue joint position before assembly, i.e. glue can be applied according to the structure of the glue joint 112, in other embodiments, by providing an annular groove (not shown in the figure) at the bottom of the mounting groove 11, coating the glue in the annular groove, and docking the connection portion 21 with the glue joint 112, and positioning the glue through the annular groove, the glue can be prevented from overflowing.

Optionally, the triggering portion 22 includes a triggering boss 221 and an extension column 222 connected to the triggering boss 221, where the extension column 222 is disposed through the through hole 111, and the triggering boss 221 can press the key 110 of the waterproof switch 100. The trigger portion 22 is positioned in the through hole 111 through the extension post 222, and the through hole 111 is used for positioning and guiding the extension post 222, in this embodiment, the area of the pressing surface of the trigger boss 221 is larger than the surface area of the key 110 of the waterproof switch 100, so that the pressing force can be uniformly applied to the surface of the key 110.

Further, the diameter of the trigger boss 221 is greater than the diameter of the through hole 111. Since the diameter of the trigger boss 221 is larger than that of the through hole 111, the trigger boss 221 deforms and is extruded to be reduced to pass through the through hole 111 during assembly, and when the trigger boss 221 passes through the through hole 111, the trigger boss 221 is instantaneously elastically restored, so that the shell 1 can limit the trigger boss 221 from reversely falling out of the through hole 111.

Optionally, the end of the trigger boss 221 remote from the housing 1 is provided with a chamfer 2211. The chamfer 2211 ensures that the trigger boss 221 can be smoothly introduced into the through hole 111 when passing through the through hole 111 of the housing 1, and also ensures that the trigger boss 221 is uniformly deformed in the circumferential direction.

Optionally, in the spring pad 2, an elastic portion 23 is disposed around one end of the extending post 222 away from the triggering boss 221, one end of the elastic portion 23 away from the extending post 222 is connected with one end of the connecting portion 21 away from the inner wall of the mounting groove 11, and the keycap 3 abuts against the elastic portion 23. In this embodiment, the elastic portion 23 is higher than the connecting portion 21, the extending column 222 is pressed downward by the deformation of the elastic portion 23, and drives the trigger boss 221 to press the key 110 of the waterproof switch 100, and the depth of the keycap 3 relative to the mounting groove 11 can be conveniently adjusted by adjusting the height of the elastic portion 23.

Further, the elastic portion 23 is provided with a deformation groove 231 at an end thereof remote from the key cap 3. By providing the deformation groove 231, deformation is mainly concentrated around the deformation groove 231 when the elastic portion 23 is extruded, so that the connection portion 21 and the mounting groove 11 are effectively prevented from being affected by excessive shearing force, and glue spreading is avoided.

Optionally, the extending column 222 is provided with a clamping groove 223 along the extending direction, the bottom of the key cap 3 is provided with a clamping block 31, and the clamping block 31 can be clamped in the clamping groove 223. Specifically, an introduction hole is formed in the top of the extension column 222, a clamping groove 223 is formed in the tail end of the introduction hole, the introduction hole and the clamping groove 223 are both cylindrical, the diameter of the introduction hole is smaller than that of the clamping groove 223, the clamping block 31 and the clamping groove 223 are prevented from loosening after being clamped, and the connecting structure of clamping is simple and convenient.

The second aspect of the present embodiment also relates to a waterproof switch 100, the waterproof switch 100 including a key 110 and the above waterproof assembly, the waterproof switch 100 being capable of achieving an IP67 protection level, the IP67 protection level being configured to block dust from entering the inside of the waterproof switch 100 and being waterproof under water immersed in 1 m.

The waterproof switch 100 equipped with the above waterproof assembly can be waterproof to the IP67 protection level required by the standard, blocking the influence of dust and water on the waterproof switch 100.

Referring to fig. 3, the third aspect of the present embodiment also relates to a near-eye display device including the casing 1 and the waterproof switch 100 above. Specifically, referring to fig. 1, 2 and 3, the housing 1 of the near-eye display device is the housing shown in fig. 1 and 2, the key 110 is disposed inside the housing 1 of the near-eye display device, the mounting groove 11 is disposed in the housing 1 of the near-eye display device, and the waterproof assembly is combined with the housing 1 through the mounting groove 11 to protect the key 110 inside the housing 1.

The near-eye display device provided in this embodiment may be an AR (augmented reality) display device, and may project a displayed image to a user's viewing side for combining a virtual image and a real scene. The near-eye display device provided in this embodiment is provided with the waterproof switch 100 as described above, and the waterproof switch 100 may be used as, but not limited to, a power switch or the like of the near-eye display device. The near-eye display device provided with the waterproof switch 100 can prevent dust and water from affecting the waterproof switch 100 because the switch has the IP67 protection level, so that the use environment of the near-eye display device is less limited.

It is to be understood that the above examples of the present utility model are provided for clarity of illustration only and are not limiting of the embodiments of the present utility model. Various obvious changes, rearrangements and substitutions can be made by those skilled in the art without departing from the scope of the utility model. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.

Claims

1. The waterproof assembly is used for protecting a waterproof switch (100), the waterproof switch (100) is arranged in the shell (1), and the shell (1) is provided with a mounting groove (11); characterized in that the waterproof assembly comprises:

the elastic pad (2), the elastic pad (2) is arranged in the mounting groove (11), a through hole (111) is formed in the groove bottom of the mounting groove (11), the elastic pad (2) comprises a connecting part (21) which is annularly arranged on the circumference of the elastic pad (2) and a triggering part (22) which penetrates through the through hole (111), the connecting part (21) is glued with the mounting groove (11), and the triggering part (22) can extrude a key (110) of the waterproof switch (100);

and the keycap (3) is arranged on the elastic pad (2) and is used for extruding the elastic pad (2).

2. The waterproof assembly according to claim 1, characterized in that the connection portion (21) is annular, the surface of the connection portion (21) glued to the mounting groove (11) being planar.

3. The waterproof assembly according to claim 2, characterized in that the bottom of the mounting groove (11) is provided with a glue joint (112), a face of the connecting portion (21) facing the glue joint (112) is matched with the shape of the glue joint (112), and the connecting portion (21) is adhered to the glue joint (112).

4. The waterproof assembly according to claim 1, wherein the triggering portion (22) comprises a triggering boss (221) and an extension column (222) connected with the triggering boss (221), the extension column (222) is arranged through the through hole (111) in a penetrating mode, and the triggering boss (221) can press a key (110) of the waterproof switch (100).

5. The waterproof assembly according to claim 4, characterized in that the diameter of the trigger boss (221) is greater than the diameter of the through hole (111).

6. The waterproof assembly according to any one of claims 4 or 5, wherein the end of the triggering boss (221) remote from the housing (1) is provided with a chamfer (2211).

7. The waterproof assembly according to claim 4, wherein an elastic portion (23) is annularly arranged at one end of the extending column (222) away from the triggering boss (221), one end of the elastic portion (23) away from the extending column (222) is connected with one end of the connecting portion (21) away from the inner wall of the mounting groove (11), and the key cap (3) is abutted to the elastic portion (23).

8. The waterproof assembly according to claim 7, characterized in that the end of the elastic portion (23) remote from the key cap (3) is provided with a deformation groove (231).

9. The waterproof assembly according to claim 4, wherein the extending column (222) is provided with a clamping groove (223) along the extending direction thereof, the bottom of the key cap (3) is provided with a clamping block (31), and the clamping block (31) can be clamped in the clamping groove (223).

10. A waterproof switch comprising a key (110), characterized in that it further comprises a waterproof assembly according to any one of claims 1 to 9.

11. The waterproof switch according to claim 10, characterized in that the waterproof switch (100) is capable of reaching an IP67 protection level, the IP67 protection level being configured to block dust from entering the inside of the waterproof switch (100) and waterproof under water immersed in 1 m.

12. Near-eye display device, characterized by comprising a waterproof switch (100) according to any one of claims 10 and 11, further comprising the housing (1).