CN211858485U

CN211858485U - Keyboard box

Info

Publication number: CN211858485U
Application number: CN202021024380.XU
Authority: CN
Inventors: 韩明强; 陈卫; 刘永亮; 郭美让
Original assignee: China Techenergy Co Ltd
Current assignee: China Techenergy Co Ltd
Priority date: 2020-06-05
Filing date: 2020-06-05
Publication date: 2020-11-03
Anticipated expiration: 2030-06-05

Abstract

The utility model discloses a keyboard box body, include: the keyboard comprises a keyboard panel (2), wherein a keyboard surface sticker (1) is arranged on the top surface of the keyboard panel (2); the PCB (3), the said PCB board (3) is fixedly connected with said keyboard panel (2); the keyboard panel (2) is fixed on the top surface of the keyboard shell (4), and the keyboard shell (4) is provided with a cavity for accommodating the PCB (3); the periphery of the keyboard shell (4) is provided with an edge, and the edge is provided with an edge screw (5) used for being installed in a matched mode with the installation platform and a nut (6) in threaded fit with the edge screw (5). The utility model provides a keyboard box body can reduce the probability of maloperation through keyboard operation, has ensured keyboard panel, PCB board and keyboard casing's stability, has effectively satisfied keyboard box body and to vibration and shock-resistant environment's user demand, satisfies mounting platform installation environment's use.

Description

Keyboard box

Technical Field

The utility model relates to an input device technical field especially relates to a keyboard box body.

Background

At present, in a digital special instrument control system of a nuclear power station, a man-machine control interface mode which is commonly used is a touch screen mode. The nuclear safety level control display device uses a touch screen form to input signals in a digital special instrument control system of a nuclear power station, but in some non-static or unstable working environments, an installation platform (such as a coil platform) is also in a non-static or unstable state, and a human-computer interface in a touch screen form arranged on the installation platform is easy to cause misoperation. The existing keyboard device using metal keys or other non-metal keys can not meet the installation environment of the existing installation platform,

therefore, how to reduce the probability of misoperation and meet the use requirement of the installation environment of the installation platform is a problem to be solved urgently by the technical personnel in the field.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a keyboard box body to reduce the probability of maloperation and satisfy mounting platform installation environment's use.

In order to solve the technical problem, the utility model provides a keyboard box body, include:

the keyboard panel is provided with a keyboard surface sticker on the top surface;

the PCB is fixedly connected with the keyboard panel;

the keyboard panel is fixed on the top surface of the keyboard shell, and the keyboard shell is provided with a cavity for accommodating the PCB; the periphery of the keyboard shell is provided with an edge, and the edge is provided with an edge screw used for being installed in a matched mode with the installation platform and a nut in threaded fit with the edge screw.

Optionally, in the keyboard box, a bottom surface of the keyboard panel is provided with a plurality of panel positioning columns, the panel positioning columns are provided with PCB positioning surfaces in positioning contact with the PCB, and the PCB positioning surfaces are provided with threaded holes for being matched with connecting screws;

the connecting screw comprises a first connecting screw, and the first connecting screw is in threaded fit connection with the threaded hole of the panel positioning column.

Optionally, in the keyboard box, a positioning protrusion is disposed on an inner wall of the cavity of the keyboard casing, and a top surface of the positioning protrusion is a positioning surface which is in positioning fit with a bottom surface of the PCB.

Optionally, in the keyboard box, the cavity is a through cavity penetrating through the top surface and the bottom surface of the keyboard casing;

the keyboard shell is detachably arranged on the bottom surface of the keyboard shell;

the positioning bulge is provided with a positioning through hole;

the connecting screw further comprises a second connecting screw, and the second connecting screw penetrates through the positioning through hole to be connected with the threaded hole of the panel positioning column in a matched mode.

Optionally, in the keyboard box, a bottom surface of the keyboard casing has an annular groove;

the edge of the bottom plate is provided with an annular frame arranged along the circumferential direction of the bottom plate, and the annular frame extends into the annular groove.

Optionally, in the keyboard box, a housing positioning column is further disposed on an inner wall of the cavity of the keyboard housing, the housing positioning column has a bottom plate positioning surface in positioning contact with the bottom plate, and the bottom plate positioning surface has a threaded hole for being matched with a connecting screw;

the connecting screw further comprises a third connecting screw, and the third connecting screw is connected with the threaded hole of the shell positioning column in a matched mode.

Optionally, in the keyboard box, the bottom plate has an interface mounting hole.

Optionally, in the keyboard box, the bottom plate is a metal bottom plate, and the bottom plate has a grounding part.

Optionally, in the keyboard box, the positioning protrusion is an annular protrusion arranged along the circumferential direction;

the bottom surface edge of the PCB is matched and positioned with the top surface of the annular bulge.

Optionally, in the keyboard case, a surface of the keyboard case has a conductive oxidation treatment layer.

The utility model provides a keyboard box body, wherein, PCB board and keyboard panel fixed connection, keyboard panel are fixed in the top surface of keyboard casing for the PCB board is fixed in the cavity of keyboard casing, through the above-mentioned setting, make PCB board, keyboard panel and keyboard casing relatively fixed, form the modular structure, in order to facilitate the installation; the periphery of keyboard casing is provided with the border, is provided with on the border to be used for installing the border screw on mounting platform and with border screw thread fit's nut, consequently, can install the periphery border of keyboard casing on mounting platform through border screw and nut. Keyboard panel adopts the key mode, through be provided with the keyboard face subsides at keyboard panel top surface, make the keyboard face paste the key identification that corresponds and keyboard panel's case and correspond the setting, satisfy the demand of control signal input function, can reduce the probability of maloperation through keyboard operation, and, install above-mentioned modular keyboard box body screw cooperation on mounting platform, thereby improved the result of use at non-static or unstable operational environment, keyboard panel has been ensured, the stability of PCB board and keyboard casing, satisfy the assembly requirement of PCB board, effectively satisfied the user demand of keyboard box body to vibration and antidetonation environment, satisfy the use of mounting platform installation environment.

Drawings

Fig. 1 is an exploded schematic view of a keyboard box provided by the present invention;

fig. 2 is a schematic front structural view of a keyboard housing according to the present invention;

fig. 3 is a schematic back structural view of the keyboard housing according to the present invention;

fig. 4 is a schematic back structure view of the keyboard box provided by the present invention;

fig. 5 is an assembly diagram of the PCB board and the keyboard panel provided by the present invention;

fig. 6 is an assembly schematic view of the keyboard housing, the PCB board and the keyboard panel provided by the present invention;

fig. 7 is a schematic cross-sectional structural view of the keyboard box provided by the present invention;

fig. 8 is a schematic front structural view of a keyboard box body provided by the present invention;

fig. 9 is a schematic structural diagram of the bottom plate provided by the present invention.

Detailed Description

The core of the utility model is to provide a keyboard box body to reduce the probability of maloperation and satisfy mounting platform installation environment's use.

In order to make the technical field better understand the solution of the present invention, the following detailed description of the present invention is provided with reference to the accompanying drawings and the detailed description.

Referring to fig. 1-9, an embodiment of the present invention provides a keyboard box, which includes a keyboard panel 2, a Printed Circuit Board (PCB) Board 3 and a keyboard housing 4, wherein a keyboard surface sticker 1 is disposed on a top surface of the keyboard panel 2, and the PCB Board 3 is fixedly connected to the keyboard panel 2; the keyboard panel 2 is fixed on the top surface of the keyboard shell 4, and the keyboard shell 4 is provided with a cavity for accommodating the PCB 3; the periphery of keyboard casing 4 is provided with the border, and the border is provided with the border screw 5 that is used for installing with the mounting platform cooperation and with border screw 5 screw-thread fit's nut 6.

The embodiment of the utility model provides a keyboard box body, wherein, PCB board 3 and keyboard panel 2 are fixedly connected, and keyboard panel 2 is fixed in the top surface of keyboard casing 4, makes PCB board 3 be fixed in the cavity of keyboard casing 4, through the above-mentioned setting, makes PCB board 3, keyboard panel 2 and keyboard casing 4 relatively fixed, forms the modular structure, so as to be convenient for install; the periphery of keyboard casing 4 is provided with the border, is provided with on the border to be used for installing border screw 5 on mounting platform and with 5 screw-thread fit's of border screw nut 6, consequently, can install the periphery border of keyboard casing 4 on mounting platform through border screw 5 and nut 6. Keyboard panel 2 adopts the key mode, through be provided with keyboard face subsides 1 at 2 top surfaces of keyboard panel, make the key sign that corresponds on the keyboard face subsides 1 correspond the setting with keyboard panel 2's case, satisfy the demand of control signal input function, can reduce the probability of maloperation through keyboard operation, and, install above-mentioned modular keyboard box body screw cooperation on mounting platform, thereby improved the result of use at non-static or unstable operational environment, keyboard panel 2 has been ensured, PCB board 3 and keyboard shell 4's stability, satisfy the assembly requirement of PCB board, effectively satisfied the keyboard box body to the user demand of vibration and antidetonation environment, satisfy the use of mounting platform installation environment.

It will be appreciated that after the keyboard box is normally mounted on the mounting platform, the upward facing surface of the component (e.g., PCB 3, keyboard panel 2, keyboard housing 4, etc.) is the top surface thereof, and the downward facing surface of the component is the bottom surface thereof.

The mounting platform can be a functional cabinet or a disk table and the like which need to be provided with a keyboard box body.

The embodiment of the utility model provides a keyboard box body is the dedicated keyboard box body of nuclear safety level control display device. Namely, the keyboard box body is a nuclear security level keyboard box body.

In addition, the keyboard box body can be screwed on the mounting platform, so that the nuclear grade requirement is met, the vibration and earthquake resistant use environment is met, and the protection grade can reach IP 55. And the keyboard box body is small in overall size and high in performance, and meets the requirement of safe communication.

The edge screws 5 are press-riveting screws for the sake of convenience in processing and strength of connection.

In this embodiment, the keyboard overlay 1 is a PC overlay. The requirements of low smoke, zero halogen and flame retardance are met, no toxic or corrosive products are released during combustion, and meanwhile, the keyboard surface sticker 1 can achieve the aim of water resistance.

As shown in fig. 8, the keyboard overlay 1 is an integral structure, and the key marks thereon may be determined according to actual requirements. The keys of the keyboard panel 2 are arranged corresponding to the key marks.

In this embodiment, the overall shell size protection range of the keyboard box body is as follows: h: 100-300 mm, W: 200-400 mm, D: 20-70 mm. Where H is the height, W is the width, and D is the depth. The keys of the keyboard panel 2 can be customized and developed according to the needs, and the margin of 74 different keys can be met.

The bottom surface of the keyboard panel 2 is provided with a plurality of panel positioning columns 21, the panel positioning columns 21 are provided with PCB positioning surfaces which are in positioning contact with the PCB 3, and the PCB positioning surfaces are provided with threaded holes which are matched with the connecting screws; the connecting screw comprises a first connecting screw 10, and the first connecting screw 10 is in threaded fit connection with a threaded hole of the panel positioning column 21. Through the arrangement, the keyboard panel 2 and the PCB 3 are conveniently stacked, the whole size is saved due to the stacked plate structure formed by the keyboard panel 2 and the PCB 3, the space is fully utilized, the size requirement of the keyboard shell 4 is reduced, and the occupied space of the keyboard shell 4 is further reduced; and, a sufficient interval between the keyboard panel 2 and the PCB 3 is secured to facilitate heat dissipation of the PCB 3.

In this embodiment, the panel positioning column 21 is a press-riveting stud. Wherein, a plurality of panel reference columns 21 are evenly distributed, so as to realize that the key is stressed evenly and stably.

The inner wall of the cavity of the keyboard shell 4 is provided with a positioning protrusion 41, and the top surface of the positioning protrusion 41 is a positioning surface which is matched with the bottom surface of the PCB 3 in a positioning way. Through the arrangement, the positioning effect of the PCB 3 in the cavity of the keyboard shell 4 is effectively improved, and the stability of the PCB 3 relative to the keyboard shell 4 is further improved.

The cavity is a through cavity which penetrates through the top surface and the bottom surface of the keyboard shell 4; the keyboard box body also comprises a bottom plate 8, and the bottom plate 8 is detachably arranged on the bottom surface of the keyboard shell 4; the positioning bulge 41 is provided with a positioning through hole; the connecting screw further comprises a second connecting screw 7, and the second connecting screw 7 penetrates through the positioning through hole to be connected with the threaded hole of the panel positioning column 21 in a matched mode. It is understood that the positioning through-hole is a through-hole penetrating the top surface of the positioning projection 41 and the bottom surface thereof. In the installation, keyboard panel 2 and PCB board 3 after will assembling are installed to keyboard casing 4, then by the bottom surface installation second connecting screw 7 of keyboard casing 4 for second connecting screw 7 passes the screw-thread fit connection of positioning hole and the screw hole of panel reference column 21, accomplishes the equipment of keyboard panel 2 and keyboard casing 4, and, because PCB board 3 is located between keyboard panel 2 and the location arch 41, consequently, has also improved the stability of PCB board 3.

The cavity may also be configured as a trough structure having a trough bottom surface, with the trough opening being located at the top surface of the keyboard housing 4.

The bottom surface of the keyboard housing 4 has an annular groove 42; the edge of the base plate 8 has an annular rim disposed circumferentially thereof which extends into the annular groove 42. Through the arrangement, the situation that external liquid enters the cavity of the keyboard shell 4 through the joint of the keyboard shell 4 and the bottom plate 8 is avoided, the waterproof effect is effectively achieved, the fact that parts in the cavity (such as the PCB 3) are affected with damp is avoided, and the service life is prolonged. Preferably, the bottom plate 8 is a sheet metal part, and the annular frame is a frame formed by bending a sheet metal.

In order to ensure the positioning effect of the bottom plate 8, a shell positioning column 43 is further arranged on the inner wall of the cavity of the keyboard shell 4, the shell positioning column 43 is provided with a bottom plate positioning surface which is in positioning contact with the bottom plate 8, and the bottom plate positioning surface is provided with a threaded hole for being matched with a connecting screw; the connecting screw further comprises a third connecting screw 9, and the third connecting screw 9 is in threaded fit connection with a threaded hole of the housing positioning column 43.

As shown in fig. 9, in the present embodiment, the bottom plate 8 has an interface mounting hole 81. The interface mounting hole 81 can be used for serial port multiplexing according to subsequent development, and can realize communication with 20 different devices at most. Through the arrangement, the keyboard box body is convenient to interface with the nuclear safety level control display device or other different devices.

The interface may be disposed on the keyboard housing 4, that is, the keyboard housing 4 is disposed with an interface mounting hole, and the above-mentioned effects can be achieved as well.

In order to improve the service life and safety, the chassis 8 is a metal chassis, and the chassis 8 has a grounding member 82. In this embodiment, the grounding member 82 includes a grounding screw and a nut. Wherein, the ground screw can be a rivet pressing screw.

The grounding member 82 may also be provided by welding or other means, which will not be described in detail herein.

In order to improve the positioning stability, the positioning protrusion 41 is an annular protrusion arranged along the circumferential direction; the bottom edge of the PCB 3 is matched and positioned with the top surface of the annular bulge. The positioning protrusions 41 may be provided as a plurality of independent block-shaped structures, and the plurality of positioning protrusions 41 are arranged along the ring shape of the inner wall of the cavity of the keyboard housing 4, so that the plurality of positioning protrusions 41 are in positioning contact with different positions of the bottom edge of the PCB 3.

Further, the surface of the keyboard housing 4 has a conductive oxidation treatment layer. Through the arrangement, the using effect is improved. Wherein, the outer surface of the keyboard shell 4 is sprayed with plastic, and the keyboard shell 4 is sprayed and protected with the contact area of the keyboard surface sticker 1, the keyboard panel 2, the PCB 3 or the bottom plate 8.

In this embodiment, the keyboard housing 4 is preferably formed by drilling and milling a single piece of aluminum alloy monolith as a base for the entire module assembly.

It is right above that the utility model provides a keyboard box body introduces in detail. The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.

Claims

1. A keyboard case, comprising:

the keyboard comprises a keyboard panel (2), wherein a keyboard surface sticker (1) is arranged on the top surface of the keyboard panel (2);

the PCB (3), the said PCB board (3) is fixedly connected with said keyboard panel (2);

the keyboard panel (2) is fixed on the top surface of the keyboard shell (4), and the keyboard shell (4) is provided with a cavity for accommodating the PCB (3); the periphery of the keyboard shell (4) is provided with an edge, and the edge is provided with an edge screw (5) used for being installed in a matched mode with the installation platform and a nut (6) in threaded fit with the edge screw (5).

2. The keyboard box of claim 1, wherein the bottom surface of the keyboard panel (2) has a plurality of panel positioning posts (21), the panel positioning posts (21) have a PCB positioning surface in positioning contact with the PCB (3), the PCB positioning surface has threaded holes for mating with connection screws;

the connecting screw comprises a first connecting screw (10), and the first connecting screw (10) is in threaded fit connection with a threaded hole of the panel positioning column (21).

3. The keyboard box body of claim 2, wherein the keyboard shell (4) has a positioning protrusion (41) on the inner wall of the cavity, and the top surface of the positioning protrusion (41) is a positioning surface which is matched with the bottom surface of the PCB (3).

4. The keyboard box of claim 3, wherein the cavity is a through cavity running through the top surface and the bottom surface of the keyboard housing (4);

the keyboard is characterized by further comprising a bottom plate (8), wherein the bottom plate (8) is detachably arranged on the bottom surface of the keyboard shell (4);

a positioning through hole is formed in the positioning bulge (41);

the connecting screw further comprises a second connecting screw (7), and the second connecting screw (7) penetrates through the positioning through hole to be connected with the threaded hole of the panel positioning column (21) in a matched mode.

5. The keyboard tray of claim 4, wherein the bottom surface of the keyboard housing (4) has an annular groove (42);

the edge of the base plate (8) has an annular rim arranged along its circumference, which extends into the annular groove (42).

6. The keyboard box body according to claim 4, wherein a shell positioning column (43) is further arranged on the inner wall of the cavity of the keyboard shell (4), the shell positioning column (43) has a bottom plate positioning surface in positioning contact with the bottom plate (8), and the bottom plate positioning surface has a threaded hole for matching with a connecting screw;

the connecting screw further comprises a third connecting screw (9), and the third connecting screw (9) is in threaded fit connection with a threaded hole of the shell positioning column (43).

7. The keyboard tray of claim 4, characterized in that the bottom plate (8) has interface mounting holes (81) thereon.

8. The keyboard tray of claim 4, wherein the bottom plate (8) is a metal bottom plate, the bottom plate (8) having a grounding member (82) thereon.

9. The keyboard box of claim 3, wherein the positioning protrusion (41) is a circumferentially arranged annular protrusion;

the bottom surface edge of the PCB (3) is matched and positioned with the top surface of the annular bulge.

10. The keyboard tray according to any of claims 1-9, characterized in that the surface of the keyboard housing (4) has a conductive oxidation treatment layer.