CN111312542A

CN111312542A - Key box assembly and electronic equipment

Info

Publication number: CN111312542A
Application number: CN201910426811.0A
Authority: CN
Inventors: 李冬贵
Original assignee: Shenzhen Honghe Innovation Information Technology Co Ltd
Current assignee: Shenzhen Honghe Innovation Information Technology Co Ltd
Priority date: 2019-05-22
Filing date: 2019-05-22
Publication date: 2020-06-19
Anticipated expiration: 2039-05-22
Also published as: CN111312542B

Abstract

The invention discloses a key box assembly and electronic equipment, wherein the key box assembly comprises a key box, a key structure and a PCB assembly, the key structure comprises a support and keys, the keys are connected to the support through a cantilever, the key box comprises a box body and a fixing part, the key structure and the PCB assembly are arranged in the box body, the box body comprises a bottom plate and side plates arranged along the circumferential direction of the bottom plate, the fixing part is a plate-shaped structure connected to the side plates, an included angle α is formed between the fixing part and the bottom plate, and through holes for installing the keys and/or external interfaces are formed in the bottom plate.

Description

Key box assembly and electronic equipment

Technical Field

The invention relates to the technical field related to interactive screen structures, in particular to a key box assembly and electronic equipment.

Background

Most of the existing large-screen keys and external interfaces (such as I/O interfaces and the like) are arranged perpendicular to the display screen, namely, the keys and the external interfaces are mostly horizontally arranged. This structure has the following problems:

1. the large-screen key is mostly arranged on the lower frame, the lower frame is lower in height, the comfort is poor when the key is pressed due to the fact that the key end face is not matched with the pressing angle of the finger when the finger presses the key, and the key is likely to move unsmoothly.

2. After the external connector is connected with the external plug, the external connector is easy to deform or loosen due to the influence of the external connector and the gravity of the wire after long-time use, so that the external connector is in poor contact with the connector.

Disclosure of Invention

In view of the above, it is an object of the present invention to provide a key box assembly and an electronic device that facilitate the use of a key and an external structure.

In a first aspect, a key box assembly is provided, which comprises a key box, a key structure and a PCB assembly, wherein the key structure comprises a support and a key, the key is connected to the support through a cantilever,

the button box includes box body and fixed part, the button structure with the PCB subassembly sets up in the box body, the box body includes the bottom plate and follows the curb plate that the circumference of bottom plate set up, the fixed part structure is connected plate structure on the curb plate, the fixed part with form contained angle α between the bottom plate, be provided with the confession on the bottom plate the through-hole of button and/or external interface installation.

Preferably, the included angle α is 15-35 degrees.

Preferably, the cantilever is configured as an elongated structure, a first end of the cantilever is connected to the bracket, a second end of the cantilever is connected to the key, and the second end of the cantilever is located on the key away from the bracket.

Preferably, the number of the cantilevers is two, and the two cantilevers are respectively located at two sides of the key.

Preferably, the bracket is provided with a support limiting groove, the support limiting groove is used for supporting and limiting the PCB assembly,

the plane of the bottom wall of the supporting limiting groove is higher than the plane of the support.

Preferably, the bracket is provided with a positioning cylinder,

the bottom plate is provided with a positioning rib, and the positioning cylinder is sleeved on the positioning rib.

Preferably, the support limit groove is formed on the positioning cylinder.

Preferably, the key structure is further provided with a light guide part, the light guide part is arranged on the bracket,

the keys and the light guide are distributed along a straight line.

Preferably, the PCB assembly abuts on the key structure and presses the key structure against the bottom plate,

the PCB fixing piece is abutted and pressed on the PCB assembly.

Preferably, the PCB assembly includes a PCB, a first side edge of the PCB abuts against the bottom wall of the supporting limiting groove, a key module is arranged on the PCB, and a pressing direction of the key module is parallel to the PCB.

Preferably, an external interface is further arranged on the PCB, and the external interface corresponds to the through hole on the bottom plate of the box body.

Preferably, the key box assembly includes a key support, the key support includes a connecting portion and an abutting portion, the connecting portion is used for fixing the key support, and the abutting portion abuts against the key module to provide a supporting force for the key module.

A second aspect provides an electronic device, comprising a display screen, wherein the display screen comprises a screen and a frame, a key box assembly is arranged in the frame and positioned at the lower side of the screen, the key box assembly comprises a key box, the key box is connected to the frame, a key structure and a PCB assembly are arranged in the key box, the PCB assembly abuts against the key structure to tightly press the key structure in the key box,

the button structure comprises a button, the button can be pressed outside the button box, and the button is arranged in an upward inclined state.

Preferably, the button box includes box body and fixed part, the box body includes the bottom plate and follows the curb plate that the circumference of bottom plate set up, be provided with the through-hole that supplies button and/or external interface installation on the bottom plate, the fixed part structure is connected platelike structure on the curb plate, the fixed part with form contained angle α between the bottom plate, the value of contained angle α is 15 degrees-35 degrees.

Preferably, an included angle α is formed between the pressing direction of the key and the plane where the display screen is located, and the value of the included angle α is 15-35 degrees.

Preferably, the electronic device is a multimedia all-in-one machine, a touch all-in-one machine, an electronic blackboard, an electronic whiteboard, an intelligent interactive large screen or an intelligent flat plate.

The key box assembly provided by the invention comprises the key box, and the fixed part is arranged on the key box, and an included angle is formed between the fixed part and the bottom plate of the key box, so that the installation state of the keys and/or the external interface is in an inclined state, and the key box assembly is more convenient and comfortable to use and has better reliability.

Drawings

The above and other objects, features and advantages of the present invention will become more apparent from the following description of the embodiments of the present invention with reference to the accompanying drawings, in which:

fig. 1 and 2 show schematic structural diagrams of key box assemblies;

fig. 3 shows a schematic structural view of a key case;

fig. 4 shows a schematic view of the internal structure of the key case;

fig. 5 is a schematic end view of the key case;

FIG. 6 is a schematic diagram of a key structure;

FIG. 7 shows a schematic structural diagram of a PCB assembly;

fig. 8 shows a partial structural assembly diagram of the key box assembly.

Detailed Description

The present invention will be described below based on examples, but the present invention is not limited to only these examples. It will be appreciated by those of ordinary skill in the art that the drawings provided herein are for illustrative purposes and are not necessarily drawn to scale.

Unless the context clearly requires otherwise, throughout the description and the claims, the words "comprise", "comprising", and the like are to be construed in an inclusive sense as opposed to an exclusive or exhaustive sense; that is, what is meant is "including, but not limited to".

In the description of the present invention, it is to be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.

As shown in fig. 1 and 2, the key box assembly provided by the present invention includes a key box 100, a key structure 200, a PCB assembly 300, and a PCB fixture 400, wherein the key structure 200 and the PCB assembly 300 are disposed in the key box 100, the PCB assembly 300 abuts against the key structure 200, and the PCB fixture 400 fixes the PCB assembly 300 in the key box 100.

As shown in fig. 3, 4 and 5, the key case 100 includes a case body 110 and a fixing portion 120, the case body 110 includes a bottom plate 111 and a side plate 112 constructed in a thin plate structure, the side plate 112 is disposed along the entire circumference of the edge of the bottom plate 111 to form a cylindrical structure, and a portion of the case body 110 opposite to the bottom plate 11 forms an opening, the fixing portion 120 is used for fixing the key case 100, for example, when the key case assembly is used on a display screen, the fixing portion 120 is fixedly connected to a frame of the display screen, the fixing portion 120 is formed at the opening edge of the case body 110, that is, the fixing portion 120 is formed on the side wall 112 away from the bottom plate 111, the fixing portion 120 is disposed along one side of the side plate 112, and the fixing portion 120 extends to the outer side of the side plate 112 to form a plate-shaped structure, as shown in fig. 5, the bottom plate 111 is inclined to the side where the fixing portion 120 is disposed, and the included angle α formed between the bottom plate 111 and the fixing portion 120 preferably takes a value of.

As shown in fig. 3 and 4, the inner cavity of the case 110 is used for accommodating the key structure 200 and the PCB assembly 300, the key structure 200 abuts against the bottom plate 111, the PCB assembly 300 abuts against the key structure 200, and then the PCB fixture 400 presses the PCB assembly 300 against the key structure 200, so that the key structure 200 is pressed against the bottom plate 111. The bottom plate 111 is provided with a plurality of through holes 113, the through holes 113 are provided, and the keys or other structures on the key structure 200 can extend out of the box body 110 through the through holes 113, or the external interface on the PCB assembly 300 can be communicated with the outside of the box body 110 through the through holes 113. Preferably, the size and shape of the through holes 113 may be different, and the specific shape and size of the through holes 113 are determined according to the structure matched therewith, for example, the through holes 113 matched with the circular keys on the key structure 200 are circular holes, and the through holes 113 matched with the external interface on the PCB assembly 300 are elongated holes.

The bottom plate 111 is further provided with a positioning rib 114, the positioning rib 114 is located inside the box body 110, and the positioning rib 114 may be configured as a sheet structure or any shape formed by a plurality of sheet structures. Preferably, the positioning ribs 114 are provided with at least two, for example, three or more, the positioning ribs 114 are used for positioning the key structure 200, and the positioning ribs 114 may be uniformly distributed along a straight line or irregularly distributed on the bottom plate 111 in any manner. Preferably, the bottom plate 111 is further provided with a limiting column 115 for limiting the key structure 200, the limiting column 115 is preferably configured as a cylindrical structure, and the limiting column 115 is preferably provided with at least two, for example, two, three or more. The plurality of limiting columns 115 are located inside the box body 110 and may be distributed on the bottom plate 111 in a uniform or random irregular manner.

As shown in fig. 6, the key structure 200 includes a bracket 210 and a key 220, the key 220 is connected to the bracket 210, a positioning cylinder 211 is disposed on the bracket 210, and the positioning cylinder 211 can be sleeved on the positioning rib 114 to position the key structure 200.

The key 220 is connected to the support 210 through a cantilever 221, the cantilever 221 is an elongated structure, a first end of the cantilever 221 is connected to the support 210, a second end of the cantilever 221 is connected to the key 220, and the second end of the cantilever 221 is located at a position where the key 220 is far away from the support 210, so that the length of the cantilever 221 can be longer, and thus the cantilever 221 has better elasticity, that is, the cantilever 221 can be more elastically deformed, and preferably, at least a portion of the cantilever 221 extends in a direction parallel to an outer edge of the key 220, for example, in the present embodiment, the key 220 is a circular structure, and at least a portion of the cantilever 221 is an arc shape, which can further extend the length of the cantilever 221 on one hand, and can also match the shapes of the cantilever 221 and the key 220 to reduce the occupied space on the other hand. Preferably, each of the keys 220 is connected to the bracket 210 through two of the cantilevers 221, and the two cantilevers 221 are disposed at both sides of the key 220. Preferably, the portion of the bracket 210 corresponding to the key 220 is configured as an elongated structure, and the width thereof is small in size, so as to reduce the total width thereof and the key 220. The first end of the cantilever 221 is connected to the bracket 210, the second end is connected to the key 220, so that the key 220 is located at the first side of the bracket 210, when a plurality of keys 220 are provided, the plurality of keys 220 are all located at the first side of the bracket 210, and the plurality of keys 220 are distributed along the extending direction of the bracket 210, as shown in fig. 6.

The key structure 200 further includes a light guide 230, wherein the light guide 230 is mounted on the support 210, and preferably, a portion of the support 210 on which the light guide 230 is mounted is configured as a plate-shaped structure, and the plate-shaped structure is provided with a mounting hole, and the light guide 230 is detachably mounted in the mounting hole. The part of the bracket on which the light guide member 230 is mounted is also provided with a limiting cylinder 213, the limiting cylinder 213 can be sleeved on the limiting column 115 on the bottom plate 111, and the limiting cylinder 213 is matched with the limiting column 115 to limit the key structure 200.

The key structure 200 includes a plurality of keys 220, and the plurality of keys 220 and the light guide 230 are linearly arranged in a row to reduce the overall width of the key structure 200.

The bracket 210 is further provided with a support limiting groove 212, and the support limiting groove 212 is used for supporting and limiting the PCB assembly 300. Preferably, the support limiting groove 212 is disposed on the positioning cylinder 211, and further, a plane of a bottom wall of the support limiting groove 212 is higher than a plane of the bracket 210, so that the PCB assembly 300 abuts against the bottom wall of the support limiting groove 212 after being mounted, so as to increase a distance between the key 220 and the PCB assembly 300.

As shown in fig. 7, the PCB assembly 300 includes a PCB 310, a first side edge of the PCB 310 is inserted into the support limiting groove 212, and the first side edge of the PCB 310 abuts against a bottom wall of the support limiting groove 212. The PCB 310 is provided with a key module 320 at a position close to the first side edge of the PCB, the key module 320 is arranged opposite to the key 220, the pressing direction of the key module 320 is parallel to the PCB 310, when the key 220 is pressed, the cantilever 221 is elastically deformed, so that the key 220 is close to and tightly pressed on the key module 320, and the effect of controlling the key module 320 is achieved. Because the plane of the bottom wall of the supporting and limiting groove 212 is higher than the plane of the bracket 210, the distance between the key 220 and the key module 320 is larger, so that the space between the key 220 and the key module 320 is increased, the arrangement of the cantilever 221 is facilitated, the length of the cantilever 221 can be longer, and the elasticity of the cantilever 221 is better.

Preferably, the PCB 310 is further provided with an external interface 330, a photosensitive module 340, and the photosensitive module 340 is disposed opposite to the light guide 230 on the key structure 200. The external interface 330 is used for connecting with an external line, and preferably, the external interface 330 includes a USB socket, an HDMI socket, and the like.

As shown in fig. 2, the PCB holder 400 is configured in an elongated structure, and after the PCB assembly 300 is mounted in the case 110, the PCB holder 400 abuts against a second side edge of the PCB 310 parallel to the first side edge thereof and presses the PCB 310 in the case 110. The PCB holder 400 may be fixed to the bezel 600, or in other embodiments, the PCB holder 400 may be fixed to the key case 100.

Preferably, a key support 500 is further included, as shown in fig. 1 and 8, the key support 500 is used for supporting the key module 320. The key support 500 includes a connecting portion 510, an abutting portion 520, and a supporting body 530, wherein the connecting portion 510 is configured as an elongated plate-shaped structure and is used to be fixedly connected to the key box 100 or the bezel 600. Preferably, the connecting portion 510 is provided with a through hole, which can be connected with a connecting member such as a screw in a matching manner. The supporting body 530 is connected to the connecting portion 510, the abutting portion 520 is disposed on the supporting body 530 and located at a position away from the connecting portion 510, and when the connecting portion 510 is installed, the abutting portion 520 abuts against the key module 320. Preferably, the supporting body 530 is configured as a block structure, the abutting portion 520 is configured as a protrusion formed on the block structure, the abutting portion 520 abuts against a side of the key module 320 away from the key 220, and when the key 220 presses the key module 320, the abutting portion 520 provides a supporting force for the key module 320, so that the key module 320 is not displaced or deformed, thereby ensuring reliability of a connection between the key module 320 and the PCB 310.

The key box assembly provided by the invention enables the fixed part 120 of the key box 100 and the bottom plate 111 of the box body 110 to form an included angle, so that the operation of the key 220, the external interface 330 and the like is more convenient and comfortable. In addition, the key structure 200 is compressed in the box body 110 through the PCB assembly 300, so that the overall structure is simpler, a structure for fixing the key structure 200 does not need to be separately arranged, and the overall size of the key structure 200 can be smaller.

The invention also provides electronic equipment, which comprises a display screen, wherein the display screen comprises a frame and a screen, the key box assembly is arranged in the frame, the key box assembly is positioned in a lower frame, the fixed part 120 on the key box 100 is fixed on the frame 600 in parallel with the screen, an included angle α is formed between the bottom plate 111 of the box body 110 and the screen, the value of the included angle α is 15-35 degrees, the pressing direction of the key 220 and the keys 220 and the external interface 330 of the display screen are inclined upwards, so that an included angle α is formed between the pressing direction of the key 220 and the screen, the key 220 is pressed and the external equipment is more conveniently plugged in and pulled out from the external interface 330, and the deformation or loosening of the external interface 330 caused by the gravity of the external equipment can also be reduced.

Those skilled in the art will readily appreciate that the above-described preferred embodiments may be freely combined, superimposed, without conflict.

It will be understood that the embodiments described above are illustrative only and not restrictive, and that various obvious and equivalent modifications and substitutions for details described herein may be made by those skilled in the art without departing from the basic principles of the invention.

Claims

1. A key box component is characterized by comprising a key box, a key structure and a PCB component, wherein the key structure comprises a support and a key, the key is connected to the support through a cantilever,

2. The key box assembly of claim 1, wherein the included angle α is between 15 degrees and 35 degrees.

3. The key case assembly according to claim 1,

the cantilever is of a long and thin structure, a first end of the cantilever is connected with the support, a second end of the cantilever is connected with the key, and the second end of the cantilever is located on the key and far away from the support.

4. The key case assembly according to claim 1, wherein there are two cantilever arms, and the two cantilever arms are respectively located at both sides of the key.

5. The key case assembly according to claim 1, wherein a supporting and limiting groove for supporting and limiting the PCB assembly is provided on the holder,

6. The key box assembly of claim 5, wherein the support is provided with a positioning cylinder,

7. The key case assembly according to claim 6, wherein the supporting stopper groove is formed on the positioning cylinder.

8. The key box assembly of claim 3, wherein the key structure further comprises a light guide disposed thereon, the light guide disposed on the support,

the keys and the light guide are distributed along a straight line.

9. The key case assembly according to any one of claims 5 to 7, wherein said PCB assembly abuts on said key structure and presses said key structure against said base plate,

the PCB fixing piece is abutted and pressed on the PCB assembly.

10. The key box assembly according to any one of claims 5 to 7, wherein the PCB assembly comprises a PCB, a first side edge of the PCB abuts against the bottom wall of the supporting and limiting groove, a key module is arranged on the PCB, and the pressing direction of the key module is parallel to the PCB.

11. The key box assembly according to claim 10, wherein an external interface is further disposed on the PCB, and the external interface is disposed corresponding to the through hole on the bottom plate of the box body.

12. The key box assembly of claim 10, wherein the key box assembly comprises a key support, the key support comprises a connecting portion and an abutting portion, the connecting portion is used for fixedly mounting the key support, and the abutting portion abuts against the key module to provide a supporting force for the key module.

13. An electronic device comprises a display screen and is characterized in that the display screen comprises a screen and a frame, a key box assembly is arranged in the frame and positioned on the lower side of the screen, the key box assembly comprises a key box, the key box is connected to the frame, a key structure and a PCB assembly are arranged in the key box, the PCB assembly is abutted to the key structure to press the key structure in the key box,

14. The electronic device according to claim 13, wherein the key box includes a box body and a fixing portion, the box body includes a bottom plate and a side plate disposed along a circumferential direction of the bottom plate, a through hole for installing the key and/or the external interface is disposed on the bottom plate, the fixing portion is configured as a plate-shaped structure connected to the side plate, an included angle α is formed between the fixing portion and the bottom plate, and a value of the included angle α is 15-35 degrees.

15. The electronic device of claim 13, wherein a pressing direction of the key forms an included angle α with a plane of the display screen, and the included angle α takes a value of 15-35 degrees.

16. The electronic device according to any one of claims 13-15, wherein the electronic device is a multimedia all-in-one machine, a touch all-in-one machine, an electronic blackboard, an electronic whiteboard, an intelligent interactive large screen, or an intelligent tablet.