CN109089394B

CN109089394B - Novel multifunctional instrument

Info

Publication number: CN109089394B
Application number: CN201811131241.4A
Authority: CN
Inventors: 张凤雏; 顾益刚; 许文专; 朱君昌
Original assignee: Jiangyin Sfere Electric Co ltd
Current assignee: Jiangyin Sfere Electric Co ltd
Priority date: 2018-09-27
Filing date: 2018-09-27
Publication date: 2023-09-26
Anticipated expiration: 2038-09-27
Also published as: CN109089394A

Abstract

The novel multifunctional instrument comprises an upper shell, a lower shell, a terminal cover, a transparent plate, a panel, a first circuit board, a second circuit board and a third circuit board, wherein the upper shell is provided with a mounting groove for mounting the terminal cover; a limit edge is arranged in the middle of the long edge of the upper shell and is matched with a limit buckle in the middle of the lower shell; after the upper shell and the lower shell are matched, each assembly gap has enough path length to ensure the electrostatic protection requirement; the edge of one side of the instrument is provided with a power supply end which is arranged on a first circuit board, an upper shell power supply isolation groove isolates the power supply end, the functional terminals on the same side of the power supply end are arranged on a second circuit board, a vertical distance is kept between the power supply end and the power supply end, the wiring is safer, two rows of functional terminals are arranged on the opposite side of the power supply end and are respectively arranged on the first circuit board and the second circuit board, the power supply ends are staggered in a step shape and are not influenced, the power supply end can be arranged on the upper side or the lower side, and the functional terminals on the same side as the power supply end are only arranged in one row and keep a vertical distance from the power supply end; the liquid crystal display area adopts double protection of the panel and the transparent plate, and damage caused by external force and static electricity is avoided.

Description

Novel multifunctional instrument

Technical Field

The invention belongs to the technical field of multifunctional instruments, and particularly relates to a novel multifunctional instrument.

Background

Compared with the common instrument, the multifunctional instrument has larger volume and more complex wiring, the power end of the traditional multifunctional instrument is not isolated, the same terminal block is used as the wiring end, the wiring end is not provided with a terminal cover, the danger of false touch cannot be avoided, and the wiring is unsafe; because of the larger volume, the housing is easy to warp, and the mounting reliability is reduced; larger housings can only be redesigned when the functionality is fully populated requiring additional functionality.

Disclosure of Invention

Aiming at the problems and defects existing in the prior art, the invention provides a novel multifunctional instrument.

The invention solves the technical problems by the following technical proposal:

the invention provides a novel multifunctional instrument which is characterized by comprising an upper shell, a lower shell, three terminal covers, a transparent plate, a panel, a first circuit board, a second circuit board and a third circuit board, wherein the two sides of the surface of the first circuit board are respectively provided with a power end and a first functional end, the two sides of the surface of the second circuit board are respectively provided with a second functional end and a third functional end, the surface of the third circuit board is provided with a display area, three mounting grooves for mounting corresponding functional ends are formed in the upper shell, a limit edge is formed in the middle of the long edge of the upper shell, a hasp, a power end isolation groove and a transparent plate groove are formed in the upper shell, a limit buckle is formed in the middle of the long edge of the lower shell, and a hasp groove is further formed in the lower shell.

The hasp is in buckling connection with the hasp groove, the limiting edge is in buckling connection with the limiting buckle, so that the upper shell and the lower shell are fixedly connected to form a cavity, a first circuit board, a second circuit board and a third circuit board are sequentially installed in the cavity from the lower shell to the upper shell, the power end is arranged in the power end isolation groove, the first functional end, the second functional end and the third functional end are respectively arranged in the corresponding mounting grooves, the display area is arranged in the transparent plate groove, a panel and a transparent plate are sequentially installed on the transparent plate groove, and the terminal cover is arranged in the mounting groove corresponding to the upper shell.

Preferably, the terminal cover is arranged in the corresponding mounting groove in an everting way capable of being turned 180 degrees

And a wiring diagram is arranged on the inner surface of the concave of the terminal cover.

Preferably, the middle of the long edges of the bottoms of the two sides of the upper shell are provided with limiting edges, and the middle of the long edges of the bottoms of the two sides of the lower shell are provided with limiting buckles.

Preferably, the power supply terminal and the second functional terminal are located on the same side.

Preferably, the first functional end and the third functional end are located at opposite sides of the power supply end.

Preferably, the power supply end is a terminal strip with a protective cover.

Preferably, the display area is a liquid crystal display area.

Preferably, the second circuit board is provided with a function expansion interface.

On the basis of conforming to the common knowledge in the field, the above preferred conditions can be arbitrarily combined to obtain the preferred examples of the invention.

The invention has the positive progress effects that:

according to the multifunctional instrument, each functional wiring terminal is provided with the terminal cover, and the terminal cover is matched with the mounting groove to form a roundabout path so as to have high static protection property, the terminal cover can be turned over 180 degrees in an outward turning mode, wiring diagrams can be arranged on the inner surface of the terminal cover, and the reserved identification space is saved; a limiting edge is arranged in the middle of the long edge of the upper shell and is matched with a limiting buckle in the middle of the long edge of the lower shell, so that the long edge of the upper shell is prevented from warping, and the overall dimensional stability is improved; after the upper shell is matched with the lower shell, each assembly gap has enough path length to ensure the electrostatic protection requirement; the power end is a terminal block with a protective cover, the upper shell power isolation groove isolates the power end, the distance between the power end and the operation panel is furthest, the operation safety is guaranteed to the greatest extent, the functional terminals on the same side of the power end are kept at a vertical distance from the power end, the wiring is safer, two rows of functional terminals are arranged on the side opposite to the power end and are respectively arranged on the first circuit board and the second circuit board, the wiring is not influenced, and the number of the terminals meets the multifunctional requirement; the liquid crystal display area adopts double protection of the panel and the transparent plate, so that damage caused by external force and static electricity is avoided; the right side of the instrument is provided with a function expansion interface, and functions can be added by the expandable function module.

Drawings

FIGS. 1 (a) - (b) are schematic diagrams of upper shell structures;

FIG. 2 is a schematic view of the lower shell structure;

fig. 3 (a) - (b) are schematic views of the structure of the terminal cover;

FIG. 4 is a schematic diagram of an embodiment of the present invention;

FIGS. 5 (a) - (h) are diagrams illustrating the assembly process of the present invention;

FIGS. 6 (a) - (d) are schematic diagrams of terminal cover mounting and function;

fig. 7 (a) - (f) are schematic diagrams of protecting a terminal cover, a housing from warping, and an electrostatic discharge path, wherein fig. 7 (B) is a sectional view A-A in fig. 7 (a), fig. 7 (C) is an enlarged view of a region a in fig. 7 (B), fig. 7 (d) is a sectional view B-B in fig. 7 (a), fig. 7 (e) is an enlarged view of B region in fig. 7 (d), and fig. 7 (f) is a sectional view C-C in fig. 7 (a);

fig. 8 (a) - (b) are schematic diagrams of terminal layouts;

fig. 9 (a) - (b) are functional module expansion schematic diagrams.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

As shown in fig. 1 (a) - (b), the multifunctional instrument of the present embodiment includes: the upper shell 1 is provided with a mounting groove 1a for mounting the terminal cover 3, a limiting edge 1b is arranged on the long edge of the upper shell 1, a hasp 1c matched and fixed with the lower shell 2 is arranged on the upper shell 1, and a power end isolation groove 1d and a transparent plate groove 1e are arranged on the upper shell 1. Specifically, there are 3 mounting grooves 1a, which are respectively located at two sides of the upper case 1, wherein one side of the upper case 1 is provided with one mounting groove 1a, and the other side is provided with two mounting grooves 1a.

As shown in fig. 2, a limiting buckle 2a matched with the limiting edge 1b for limiting is arranged in the middle of the long edge of the lower shell 2, and a hasp groove 2b matched and fixed with the hasp 1c is arranged on the lower shell 2.

As shown in fig. 3 (a) - (b), the terminal cover 3 is provided with a rotary shaft 3a at both ends, and the surface of the terminal cover 3 is provided with an inner face 3b recessed inward.

As shown in fig. 4, the present embodiment includes an upper case 1, a lower case 2, a terminal cover 3, a transparent plate 4, a panel 5, a first wiring board 6, a second wiring board 7, and a third wiring board 8, the first wiring board 6 having a power source terminal 6a and a functional terminal 6b distributed on both sides, the second wiring board 7 having functional terminals 7a and 7b distributed on both sides, and an expansion interface 7c, and the third wiring board 8 having a display area 8a.

As shown in fig. 5 (a) - (h) are the assembly process diagrams of the scheme of the present invention, first, the first circuit board 6, the second circuit board 7 and the third circuit board 8 are sequentially installed in the lower case 2, then the upper case 1 is installed, the three circuit boards are completely fixed, then the panel 5 and the transparent board 4 are sequentially installed, an operation interface is formed, double protection is formed for the display area, and finally three terminal covers 3 are installed, and the three terminal covers 3 are respectively installed in the corresponding installation grooves 1a to protect the three functional ends.

Namely, the buckle 1c is fastened to the buckle slot 2b, the limit edge 1b is fastened to the limit buckle 2a, so that the upper case 1 and the lower case 2 are fixedly connected to form a cavity, a first circuit board 6, a second circuit board 7 and a third circuit board 8 are sequentially installed from the lower case 2 to the upper case 1 in the cavity, the power end 6a is disposed in the power end isolation slot 1d, the three functional ends are respectively disposed in the corresponding mounting slots 1a, the display area 8a is disposed in the transparent board slot 1e, the panel 5 and the transparent board 4 are sequentially installed on the transparent board slot 1e, and the terminal cover 3 covers the corresponding mounting slots 1a.

As shown in fig. 6 (a) - (d), the terminal cover 3 can be turned 180 degrees by adopting an eversion mode, and a wiring diagram can be arranged on the inner face 3b of the terminal cover 3, so that the reserved identification space of the upper shell (1) is saved.

As shown in fig. 7 (a) - (f) of the terminal cover protection schematic diagrams, the shell warpage prevention schematic diagram and the static discharge path schematic diagram, as shown in fig. 7 (b) - (c), the terminal cover 3 and the mounting groove 1a cooperate to form a detour path L1 and L2 so as to have high static protection characteristics, as shown in fig. 7 (d) - (e), the limit edge 1b in the middle of the long edge of the upper shell 1 cooperates with the limit button 2a in the middle of the long edge of the lower shell 2 so as to prevent the long edge of the upper shell 1 from warping, and meanwhile, enough path L5 is entered therein to ensure the high static protection characteristics, as shown in fig. 7 (f), the display area is doubly protected by the transparent plate 4 and the panel 5 and has enough static protection path L3, and the instrument side surface enters the inside to have the path L4 to ensure the high static protection characteristics.

As shown in fig. 8 (a), the distance D2 between the power end 6a and the operation panel is the farthest distance, the function end on the same side keeps a vertical distance D1 from the power end, the power end 6a is a terminal row with a protective cover, the power end is isolated from the function end by the power end isolating groove 1D of the upper shell 1, the operation safety and the wiring safety are ensured to the greatest extent, as shown in fig. 8 (b) in combination with fig. 7 (D), two rows of function terminals 6b and 7b are arranged on the opposite side of the power end in a staggered manner, the respective wiring is not affected, and the number of the terminals meets the multifunctional requirement.

As shown in fig. 9 (a) - (b), the function of the extensible function module 102 is added after the meter 101 is mounted through the function extension interface 7c of the second wiring board 7.

This example describes a particular embodiment of the invention, but it will be understood by those skilled in the art that these are merely illustrative and that the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the principles and spirit of the invention, but such changes and modifications fall within the scope of the invention.

Claims

1. The utility model provides a multifunctional instrument shell, its characterized in that includes upper housing, inferior valve, three terminal cover, transparent plate, panel, first circuit board, second circuit board and third circuit board, the surface both sides of first circuit board are equipped with power end and first functional end respectively, the surface both sides of second circuit board are equipped with second functional end and third functional end respectively, the surface of third circuit board is equipped with the display area, set up three mounting groove of installing corresponding functional end on the upper housing, set up spacing limit in the middle of the long limit of upper housing, still set up hasp, power end isolation groove and transparent plate groove on the upper housing, set up spacing knot in the middle of the long limit of inferior valve, still be equipped with the hasp groove on the inferior valve;

the hasp is buckled with the hasp groove, the limiting edge is buckled with the limiting buckle, so that the upper shell and the lower shell are fixedly connected to form a cavity, a first circuit board, a second circuit board and a third circuit board are sequentially arranged in the cavity from the lower shell to the upper shell, the power supply end is arranged in the power supply end isolation groove, the first functional end, the second functional end and the third functional end are respectively arranged in corresponding mounting grooves, the display area is arranged in the transparent plate groove, a panel and a transparent plate are sequentially arranged on the transparent plate groove, and the terminal cover is arranged in the mounting groove corresponding to the upper shell;

the terminal cover is arranged in the corresponding mounting groove in an everting way capable of being turned 180 degrees, and a wiring diagram is arranged on the inner face of the concave of the terminal cover;

the upper shell is characterized in that limiting edges are arranged in the middle of the long edges of the bottoms of the two sides of the upper shell, and limiting buckles are arranged in the middle of the long edges of the bottoms of the two sides of the lower shell.

2. The utility meter housing of claim 1, wherein the power source terminal and the second functional terminal are on the same side.

3. The utility meter housing of claim 1, wherein the first and third functional ends are located on opposite sides of the power end.

4. The utility meter housing of claim 1, wherein the power end is a terminal strip with a protective cover.

5. The utility meter housing of claim 1, wherein the display area is a liquid crystal display area.

6. The multifunctional instrument housing of claim 1, wherein the second circuit board is provided with a function expansion interface.