CN211742989U

CN211742989U - Key assembly, electronic product shell and electronic product

Info

Publication number: CN211742989U
Application number: CN202020309293.2U
Authority: CN
Inventors: 杨丽冬; 陈中兴; 黄晟; 王鹏; 周汉林
Original assignee: Wuhan Guide Sensmart Tech Co ltd
Current assignee: Wuhan Guide Sensmart Tech Co ltd
Priority date: 2020-03-13
Filing date: 2020-03-13
Publication date: 2020-10-23
Anticipated expiration: 2030-03-13

Abstract

The utility model discloses a button subassembly, electronic product casing and electronic product, it includes: a key cap having an internal cavity; the triggering part is positioned in the inner cavity, one end of the triggering part is connected with the inner wall of the key cap, and the other end of the triggering part is a free end; characterized in that, the button cap includes: the water-retaining device comprises a main body and a bending part which is bent outwards, and a water-retaining groove is formed between the bending part and the main body. The number of parts of the key assembly, the volume of the key structure and the thickness of the product can be reduced, the weight of the product is reduced, meanwhile, the assembly is convenient, and a good waterproof effect is achieved.

Description

Key assembly, electronic product shell and electronic product

Technical Field

The utility model relates to an electronic product technical field specifically is a button subassembly, electronic product casing and electronic product.

Background

In the assembly of electronic equipment, such as an infrared pocket type temperature measuring machine, O-shaped rings are sleeved on a key body to achieve the purpose of sealing and water proofing, but the O-shaped rings are easy to move in the process of pressing for many times to cause the reduction of sealing reliability, and the small-sized sealing rings are small in size and inconvenient to install; in addition, the assembled type needs to fix the key pressing plate by screws firstly, and the PCB with the key switch can be assembled after the key assembly is finished, so that the key group installation is influenced by the order of the PCB before and after the installation, and the key group of the current electronic product is arranged in an upper shell or a lower shell of the product, thereby bringing limitation to the product modeling design and being not beneficial to reducing the whole thickness of the product.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the utility model provides a key assembly, electronic product casing and electronic product, it can reduce key assembly part quantity, keying structure volume and product thickness, lightens product weight, and the equipment is convenient simultaneously, and has good water-proof effects.

In order to achieve the above object, the utility model provides a following technical scheme:

in one aspect, a key assembly is provided, which includes: a key cap having an internal cavity; the triggering part is positioned in the inner cavity, one end of the triggering part is connected with the inner wall of the key cap, and the other end of the triggering part is a free end; the button cap includes: the water-retaining device comprises a main body and a bending part which is bent outwards, and a water-retaining groove is formed between the bending part and the main body.

Preferably, the key assembly further includes: and the key reinforcing plate is provided with a through hole for the free end of the trigger part to extend into.

Preferably, the bending part is formed by bending the main body outwards, or the bending part is connected with the main body and is bent outwards.

In one aspect, an electronic product housing is provided, which includes: casing main part and the installation department that is used for installing above-mentioned button subassembly.

Preferably, the mounting portion includes: the mounting hole is formed in the shell body; the baffle block is connected with the inner wall surface of the shell body, and an installation space is formed between the baffle block and the inner wall of the installation hole; the button cap penetrates through the mounting hole, the free end of the trigger portion faces the interior of the shell body and points to a switch arranged in the interior of the shell body, and the bent portion is partially/completely located in the mounting space.

Preferably, the bent portion is partially/entirely located in the installation space.

Preferably, the key cap is fitted in the mounting space in an interference fit manner.

Preferably, the inner wall portion of the mounting hole has a planar structure.

Preferably, the housing main body includes: an upper shell, which is provided with an upper mounting hole; the lower shell is provided with a lower mounting hole; an upper stopper connected to an inner wall surface of the upper housing, and forming an upper mounting space with an inner wall of the upper mounting hole; and/or the lower stop block is connected with the inner wall surface of the upper shell, and a lower mounting space is formed between the lower stop block and the inner wall of the lower mounting hole; the upper mounting hole and the lower mounting hole jointly form the mounting hole, and the upper mounting space and the lower mounting space jointly form the mounting space.

In another aspect, an electronic product is provided, which includes: the key assembly, the shell, the switch and the mainboard; the switch and the mainboard are arranged in the shell body and are electrically connected, and the key assembly is assembled on the shell body.

Compared with the prior art, the utility model discloses possess following beneficial effect:

the utility model has the advantages that the number of key component parts is small, the key structure is simple, the whole weight of the product is favorably reduced, and the waterproof requirement of the electronic product is met through the waterproof groove; meanwhile, the whole key assembly is positioned in the thickness direction of the shell and penetrates through the upper shell and the lower shell simultaneously, so that the thickness of a product is reduced, and the modeling design of the product is not influenced; the assembly process is simple, and the assembly process is not influenced by the installation sequence of the main board.

Drawings

Fig. 1 is an exploded view of a key assembly according to an embodiment 1 of the present invention;

fig. 2 is an exploded view of the key assembly according to embodiment 1 of the present invention from another view angle;

fig. 3 is a cross-sectional view of the key assembly and the housing of the present invention after assembly;

fig. 4 is a schematic view of an overall structure of a key cap in embodiment 2 of the present invention;

fig. 5 is a partial structural view of an inner wall portion of a mounting hole in embodiment 4 of the present invention;

fig. 6a is a cross-sectional view of a housing according to embodiment 5 of the present invention;

fig. 6b is a schematic view of the overall structure of the upper housing in embodiment 5 of the present invention;

fig. 6c is a schematic view of the overall structure of the lower housing in embodiment 5 of the present invention;

fig. 7 is a schematic view of an overall structure of an electronic product according to embodiment 6 of the present invention;

fig. 8 is a cross-sectional view of an electronic product in embodiment 6 of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1:

as shown in fig. 1 to 3, the key assembly P in the present embodiment includes: key cap 1 having inner cavity S1; the triggering part 2 is of a rod-shaped structure and is positioned in the internal cavity S1, one end of the triggering part 2 is connected with the inner wall of the key cap 1 in the axial direction Y, and the other end of the triggering part 2 is a free end 21 which freely extends in the axial direction Y; the key reinforcement plate 3 is provided with a through hole 31 for the free end of the trigger part 2 to extend into, and the key reinforcement 3 is located at one side pointed by the free end 21.

In this embodiment, the key cap 1 and/or the triggering portion 2 and/or the key reinforcement 3 are made of a soft material (such as silicone rubber), so as to facilitate pressing; on the basis, the key cap 1 and the triggering part 2 can be integrally formed, so that the manufacturing is convenient and the structural strength is ensured.

Further, the key reinforcement 3 includes: a base 32 provided with the through hole 31; and a protrusion 33 connected to the base 32 and located at the periphery of the through hole 31, the protrusion 33 being received in the internal cavity S1 of the key cap 1; thereby, the protrusion 33 may serve to restrict the movement of the key cap 1, and preferably, the protrusion 33 may be a ring structure disposed around the perforation 31 to match the shape of the internal cavity S1. Make in the radial direction of key cap 1, the atress of key subassembly is more even stable.

Example 2:

the present embodiment is different from embodiment 1 only in that, as shown in fig. 4, the key cap 1 in the present embodiment includes: the electronic device comprises a main body 11 and a bent part 12 bent outwards, wherein a water retaining groove 13 is formed between the bent part 12 and the main body 11, so that liquid (such as water and the like) can be contained in the water retaining groove 13, and the liquid cannot enter the inside of the electronic device to influence the normal operation of internal components, thereby meeting the waterproof requirement of the electronic device.

In this embodiment, the bent portion 12 may be formed by directly bending an end of the main body 11 facing the key reinforcement 3 outward, or the bent portion 12 is an independent structure, is connected to an end of the main body 11 facing the key reinforcement 3, is bent outward, is made of a soft material (such as silicone rubber), and can be integrally formed with the main body 11.

Example 3:

the embodiment provides an electronic product casing, it includes: a casing body 100 and a mounting portion for mounting the key assembly of embodiment 1 or 2.

Specifically, as shown in fig. 3, the mounting portion includes: a mounting hole 101 provided in the housing body 100; and a stopper 200 connected to an inner wall surface of the housing body 100 and forming a mounting space S2 with an inner wall of the mounting hole 101.

The key cap 1 partially passes through the mounting hole 101 in the axial direction Y and is fitted in the mounting space S2 in an interference fit manner. Specifically, the protruding pieces 32 of the key reinforcement 3 are partially/entirely accommodated in the internal cavity S1, while the free end 21 of the trigger part 2 is directed toward the inside of the case body 100 and toward the switch 300 disposed inside the case body 100; the whole of the key reinforcement 3 and the part/whole of the bent portion 12 are located in the installation space S2, and preferably located between the inner wall of the installation hole 101 and the base 32 of the key reinforcement 3, and at the same time, the water blocking groove 13 is also located between the inner wall of the installation hole 101 and the base 32 of the key reinforcement 3.

When the key cap 1 is pressed, the key cap 1 presses the key reinforcement 3, so that the key reinforcement 3 abuts against the stopper 200, and the trigger portion 2 passes through the through hole 31 to trigger the switch 300. Therefore, the key cap 1 is protected by the key reinforcing piece 3, the damage of the key cap is avoided, the service life of the key cap is prolonged, and meanwhile, water entering the shell in the axial direction can be blocked by the water retaining groove 13. The bent portion 12 can also abut against the inner wall of the housing main body 100 and the key reinforcement 3, so that the inside of the housing main body 100 is sealed by the bent portion 12, the inner wall of the housing 100 and the key reinforcement 3 to block water from entering the housing in the radial direction.

Meanwhile, as shown in fig. 1 and 5, the key assemblies P may be multiple (e.g., 2, and the sizes may be different), and different key assemblies P are connected by the connecting member 600, correspondingly, the number of the mounting holes 101 is the same as that of the key assemblies P, so that the assembly can be completed only by corresponding different key assemblies P to different mounting holes 101, which can play a role in preventing fool in assembly, and meanwhile, the installation of multiple key assemblies P at a time can be realized by the connecting member 600, thereby further simplifying the installation process.

Example 4:

the difference between this embodiment and embodiment 3 is only that, as shown in fig. 5, the inner wall portion of the mounting hole 101 is a planar structure 1010, so that the keycap 1 and the bent piece 12 can be prevented from rotating freely, thereby enhancing the positioning in the radial direction.

Example 5:

the present embodiment is different from embodiment 3 or 4 only in that, as shown in fig. 6a to 6c, the electronic product housing main body 100 in the present embodiment includes: an upper case 1001 having an upper mounting hole 1011 formed therein; a lower housing 1002 provided with a lower mounting hole 1021; an upper stopper 2001 connected to an inner wall surface of the upper housing 1001 and having an upper mounting space S21 formed between the upper stopper and an inner wall of the upper mounting hole 1011; and/or a lower stopper 2002 connected to an inner wall surface of the upper housing 1002, and forming a lower mounting space S22 between the lower stopper and an inner wall of the lower mounting hole 1021;

the areas of the upper mounting hole 1011 and the lower mounting hole 1021 are the same, and the mounting hole 101 is formed by the upper mounting hole 1011 and the lower mounting hole 1021 together, the mounting space S2 is formed by the upper mounting space S21 and the lower mounting space S22 together, and the inner wall portion of the upper mounting hole 1011 and/or the lower mounting hole 1021 is a planar structure 1010.

The housing main body 100 of the present embodiment includes an upper housing 1001 and a lower housing 1002, and an upper mounting hole 1011 and a lower mounting hole 1021 are correspondingly formed, so that when the key assembly is assembled in the mounting hole 101, the key assembly can be completely located at the middle position in the thickness direction of the product, thereby easily meeting the modeling requirement of the product.

Example 6:

the present embodiment provides an electronic product (e.g., a pocket-type infrared thermometer), as shown in fig. 7 to 8, which includes: the housing, the switch 300, the main board 400 (e.g., PCB board) according to any of embodiments 3 to 5, and the key assembly 500 according to embodiment 1 or 2; the switch 300 and the motherboard 400 are both disposed in the casing main body 100, and the key assembly 500 is assembled on the casing main body 100; the pressing of the key assembly 500 triggers the switch 300, which further causes the switch 300 to contact the contacts on the main board 400 to perform corresponding actions.

During assembly, the key assembly 500 can be installed in the lower installation hole 1021, and then the upper shell 1001 and the lower shell 1002 are locked by screws, and the installation process is not affected by the installation sequence of the main board 400.

In summary, the key assembly of the utility model has the advantages of small number of parts and simple key structure, which is beneficial to reducing the overall weight of the product and meets the waterproof requirement of the electronic product through the waterproof groove; meanwhile, the whole key assembly is positioned in the thickness direction of the shell and penetrates through the upper shell and the lower shell simultaneously, so that the thickness of a product is reduced, the modeling design of the product is not influenced, and the influence of the installation sequence of the main board is avoided during assembly.

It should be noted that the technical features of the above embodiments 1 to 6 can be arbitrarily combined, and the technical solutions obtained by combining the technical features belong to the scope of the present application. And in this document, terms such as "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A key assembly, comprising: a key cap having an internal cavity; the triggering part is positioned in the inner cavity, one end of the triggering part is connected with the inner wall of the key cap, and the other end of the triggering part is a free end; characterized in that, the button cap includes: the water-retaining device comprises a main body and a bending part which is bent outwards, and a water-retaining groove is formed between the bending part and the main body.

2. The key assembly of claim 1, wherein the key assembly further comprises: and the key reinforcing plate is provided with a through hole for the free end of the trigger part to extend into.

3. The key assembly of claim 1, wherein the bending portion is formed by bending the main body outward, or the bending portion is connected to the main body and bent outward.

4. An electronic product housing, comprising: a casing body and a mounting portion for mounting the key assembly of any one of claims 1-3.

5. The housing of claim 4, wherein the mounting portion comprises: the mounting hole is formed in the shell body; the baffle block is connected with the inner wall surface of the shell body, and an installation space is formed between the baffle block and the inner wall of the installation hole; the button cap penetrates through the mounting hole, the free end of the trigger portion faces the interior of the shell body and points to a switch arranged in the interior of the shell body, and the bent portion is partially/completely located in the mounting space.

6. A housing according to claim 5, wherein the bent portion is located partially/completely within the mounting space.

7. The housing of claim 5, wherein the key cap fits within the mounting space with an interference fit.

8. The housing of claim 5, wherein the inner wall portion of the mounting hole is a planar structure.

9. The housing of claim 5, wherein the housing body comprises: an upper shell, which is provided with an upper mounting hole; the lower shell is provided with a lower mounting hole; an upper stopper connected to an inner wall surface of the upper housing, and forming an upper mounting space with an inner wall of the upper mounting hole; and/or the lower stop block is connected with the inner wall surface of the upper shell, and a lower mounting space is formed between the lower stop block and the inner wall of the lower mounting hole; the upper mounting hole and the lower mounting hole jointly form the mounting hole, and the upper mounting space and the lower mounting space jointly form the mounting space.

10. An electronic product, comprising: a key assembly as claimed in any one of claims 1 to 3, a housing, a switch and a motherboard as claimed in any one of claims 4 to 9; the switch and the mainboard are arranged in the shell body and are electrically connected, and the key assembly is assembled on the shell body.