CN218181781U

CN218181781U - Digital screen with locking and fixing structure

Info

Publication number: CN218181781U
Application number: CN202222649371.5U
Authority: CN
Inventors: 张林业
Original assignee: Shunde Branch Of Shenzhen Kerun Optoelectronics Co ltd
Current assignee: Shunde Branch Of Shenzhen Kerun Optoelectronics Co ltd
Priority date: 2022-10-09
Filing date: 2022-10-09
Publication date: 2022-12-30
Anticipated expiration: 2032-10-09

Abstract

The utility model discloses a digital screen with closure fixed knot constructs, include: the reflection upper shell, the lower shell seat, the PCB and the locking piece; the reflecting upper shell is provided with a connecting column; the connecting column extends towards the lower shell seat; the lower shell seat is provided with a connecting hole corresponding to the connecting column; the locking piece can penetrate through the connecting hole and is tightly matched with the connecting column, so that the reflection upper shell and the lower shell are fixedly connected. The utility model discloses, with the closure fixed knot structure of spliced pole, connecting hole and retaining member, replace the hot melt compression leg connection structure of current digital screen, compare in the great feeding space demand of hot melt head of hot melt machine, the fastener only needs the screwdriver head instrument of small-size to accomplish the equipment, in miniaturized digital screen instrument, can guarantee the tight fit connection of retaining member; thereby guarantee the firm of casing connection, reduce defects such as not hard up, light leak, reduce the rate of reprocessing.

Description

Digital screen with locking and fixing structure

Technical Field

The utility model relates to a digital display utensil technical field, in particular to digital screen with closure fixed knot constructs.

Background

The digital display screen is a commonly used display device on equipment, and the basic unit is a light emitting diode, and the light emitting diode is lightened by inputting relative current to different pins of the light emitting diode, so that a display device capable of representing parameters such as time, date, temperature and the like is displayed. For digital control devices such as digital screens and control boxes, a control panel or a PCB is generally fixed on an upper shell or a lower shell or clamped between the upper shell and the lower shell; the upper shell or the lower shell is generally provided with a hot-melting column and a connecting hole respectively, and the fixation of the upper shell and the lower shell is realized through a hot-melting column pressing process, for example, the patent number CN201620326486.2 provides a 'controller'. However, when the digital screen or the control box connected by the hot-melting pressing column process is used, the shell body is provided with a shell wall when the size of the digital screen or the control box is smaller, the size of the hot-melting column is smaller, the arrangement space is less, the feeding space for pressing the hot-melting head of the hot-melting machine is less, the stress of the hot-melting column is easy to be uneven, the shell body has the defects of loose assembly and poor reliability, and the repair rejection rate is high; especially for miniaturized digital screen, the PCB board is provided with a light-emitting unit, the hot melting column is not matched with the connecting hole, and the defect of poor light leakage can be generated.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a digital screen with closure fixed knot constructs.

The utility model discloses a technical scheme that its technical problem was solved to an embodiment adopted is: a digital screen with a locking fixture, comprising: the reflection upper shell, the lower shell seat, the PCB and the locking piece;

the reflection upper shell is provided with a front surface and a back surface, and the back surface of the reflection upper shell is provided with an accommodating cavity; the PCB is arranged in the accommodating cavity, and a light-emitting unit is arranged on one side of the PCB, which faces the reflecting upper shell; the lower shell seat is arranged on the back surface of the reflection upper shell and can cover the containing cavity;

the reflecting upper shell is provided with a connecting column; the connecting column extends towards the lower shell seat; the lower shell seat is provided with a connecting hole corresponding to the connecting column; the locking piece can penetrate through the connecting hole and is tightly matched with the connecting column, so that the reflection upper shell and the lower shell are fixedly connected.

Optionally, the connecting column is provided with a threaded hole, and the locking member is a bolt matched with the threaded hole.

Optionally, two plug terminals are arranged on one side of the lower shell seat of the PCB at intervals, and the signal line can be plugged into the plug terminals; the spliced pole is provided with two, is located two relative both ends of jack terminal interval.

Optionally, the reflective upper shell is provided with a plurality of reflective cavities which penetrate through the front surface and the back surface; the reflecting cavity is arranged corresponding to the light-emitting unit.

Optionally, the back of the reflection upper shell is provided with a plurality of positioning columns, and the PCB is provided with a plurality of positioning holes matched with the positioning columns.

Optionally, an upper housing wall extends from the outer edge of the reflective upper housing to the back surface; the containing cavity is formed by enclosing the reflecting upper shell and the inner wall of the upper shell wall; one end of the upper shell wall close to the lower shell seat is provided with an L-shaped step, and the lower shell seat can be abutted against the L-shaped step.

Optionally, the inner side of the upper shell wall is also provided with a guide rib; the outer edge of the PCB is provided with a first guide notch matched with the guide rib; the lower shell base is provided with a second guide notch matched with the guide rib.

Optionally, a lower casing wall extends from one side of the lower casing seat, which is away from the reflective upper casing; the lower shell wall is provided with a connecting buckle.

Optionally, a shading cushion pad is arranged on one side of the lower housing, which is away from the PCB.

Optionally, a display membrane is adhered to the front surface of the reflective upper shell.

The utility model has the advantages that: the digital screen is formed by combining a reflecting upper shell and a lower shell, and the PCB is arranged in a containing cavity on the back surface of the reflecting upper shell; the back of the upper reflecting shell is provided with a connecting column which passes through the PCB and then extends towards the lower shell seat, and the lower shell seat is provided with a connecting hole matched with the connecting column; and locking pieces such as bolts and the like penetrate through the connecting holes and then are tightly matched with the connecting columns, so that the lower shell seat and the upper reflection shell are pressed and locked. The utility model discloses, with the closure fixed knot structure of spliced pole, connecting hole and retaining member, replace the hot melt compression leg connection structure of current digital screen, compare in the great feeding space demand of hot melt head of hot melt machine, the fastener only needs the screwdriver head instrument of small-size to accomplish the equipment, in miniaturized digital screen instrument, can guarantee the tight fit connection of retaining member; thereby guarantee the firm of casing connection, reduce defects such as not hard up, light leak, reduce the rate of reprocessing.

In order to make the aforementioned and other objects, features and advantages of the present invention more comprehensible and obvious, preferred embodiments accompanied with figures are described in detail below.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic sectional view of the digital screen with a locking and fixing structure of the present invention;

fig. 2 is an exploded view of the digital screen with the locking and fixing structure in fig. 1.

Description of the main element symbols:

10. a reflective upper shell; 11. connecting columns; 111. a threaded hole; 12. a reflective cavity; 13. a positioning column; 14. an upper housing wall; 15. an L-shaped step; 16. a guide rib; 20. a lower shell seat; 21. connecting holes; 22. a second guide notch; 23. a lower shell wall; 24. connecting a buckle; 30. a PCB board; 31. a plug-in terminal; 32. positioning holes; 33. a first guide notch; 40. a locking member; 50. an accommodating cavity; 60. a signal line; 70. a light-shielding cushion pad; 80. the membrane is shown.

Detailed Description

This section will describe in detail the embodiments of the present invention, preferred embodiments of the present invention are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.

In the description of the present invention, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as excluding the number, and the terms greater than, less than, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the present invention, unless otherwise explicitly defined, the terms "set," "mounted," "connected," and the like are to be understood in a broad sense, and may be directly connected or indirectly connected through an intermediate medium, for example; can be fixedly connected, can also be detachably connected and can also be integrally formed; may be a mechanical connection; either as communication within the two elements or as an interactive relationship of the two elements. The technical skill in the art can reasonably determine the specific meaning of the above words in the present invention by combining the specific contents of the technical solution.

Examples

Referring to fig. 1 and 2, the present invention provides a digital screen with a locking fixing structure, including: a reflective upper case 10, a lower case 20, a PCB board 30, and a locking member 40;

the reflective upper shell 10 is provided with a front surface and a back surface, and the back surface of the reflective upper shell 10 is provided with an accommodating cavity 50; the PCB 30 is arranged in the accommodating cavity 50, and one side of the PCB 30 facing the reflective upper shell 10 is provided with a light-emitting unit; the lower shell seat 20 is arranged on the back of the reflection upper shell 10 and can cover the containing cavity 50;

the reflective upper shell 10 is provided with a connecting column 11; the connecting column 11 extends towards the lower housing base 20; the lower shell base 20 is provided with a connecting hole 21 corresponding to the connecting column 11; the locker 40 may pass through the coupling holes 21 and be tightly fitted with the coupling posts 11 to fixedly couple the reflective upper and

lower housings

10 and 20.

In the utility model, the digital screen is composed of a reflection upper shell 10 and a lower shell seat 20, and the PCB 30 is arranged in a containing cavity 50 at the back of the reflection upper shell 10; the back of the upper reflecting shell 10 is provided with a connecting column 11, the connecting column 11 passes through the PCB 30 and then extends towards the lower shell seat 20, and the lower shell seat 20 is provided with a connecting hole 21 matched with the connecting column 11; the locking members 40 such as bolts are inserted through the connecting holes 21 and then tightly fitted to the connecting posts 11, thereby press-fitting and locking the lower housing 20 and the reflective upper housing 10. The utility model discloses, with the closure fixed knot structure of spliced pole 11, connecting hole 21 and retaining member 40, replace the hot melt compression leg connection structure of current digital screen, compare in the great feeding space demand of the hot melt head of hot melt machine, the fastener only needs the screwdriver head instrument of small-size to accomplish the equipment, in miniaturized digital screen instrument, can guarantee the close-fitting connection of retaining member 40; thereby guarantee that the casing is connected firm, reduce defects such as not hard up, light leak, reduce the rate of reprocessing.

In this embodiment, the connecting column 11 is provided with a threaded hole 111, and the locking member 40 is a bolt member adapted to the threaded hole 111. The threaded holes 111 are machined in the connecting columns 11, the process is simple, the implementation is easy, the reflecting upper shell 10 and the lower shell seat 20 are locked and fixed through bolts, the installation is firm and stable, the looseness is not prone to occurring, and the connecting columns cannot be disassembled and repaired unlike a hot-melting pressing column process.

In this embodiment, two plug terminals 31 are disposed at an interval on a side of the PCB 30 facing the lower housing base 20, and the signal line 60 can be plugged into the plug terminals 31; the two connecting posts 11 are located at two opposite ends of the interval between the two plug terminals 31. The plug-in terminals 31 are used for plugging the signal lines 60, so that the PCB is electrically connected with the external control board, two plug-in terminals 31 are arranged in a manner of being matched with the positive and negative terminals, in order to ensure that the structure of the digital screen is firm and stable in the process of plugging the plug-in terminals 31, two connecting columns 11 are arranged in a manner of being matched with each other, and two plug-in terminals 31 and two connecting columns 11 are opposite to each other in pairs on the cylindrical digital screen and distributed in a cross structure, so that the structure is more firm and stable.

In this embodiment, the reflective upper case 10 is provided with a plurality of reflective cavities 12 penetrating the front and back surfaces; the reflective cavity 12 is disposed corresponding to the light emitting unit. For reflecting the relation of the light emitting units in a corresponding projection to the front surface of the reflective upper shell 10.

In order to mount the PCB 30 firmly and reliably, after the PCB 30 is placed on the reflective upper shell 10, the receiving cavity 50 is filled with the potting compound for encapsulation.

In the embodiment, the back surface of the reflective upper housing 10 is provided with a plurality of positioning posts 13, and the pcb 30 is provided with a plurality of positioning holes 32 adapted to the positioning posts 13. The positioning column 13 is clamped into the positioning hole 32, so that the PCB 30 and the reflective upper shell 10 are more firmly and stably mounted and are not easy to shake.

In the present embodiment, the outer edge of the reflective upper shell 10 extends to the back to form an upper shell wall 14; the containing cavity 50 is formed by enclosing the inner walls of the reflective upper shell 10 and the upper shell wall 14; the upper shell wall 14 is provided with an L-shaped step 15 at an end thereof adjacent to the lower shell seat 20, and the lower shell seat 20 can abut against the L-shaped step 15. The upper shell wall 14 encloses to form the containing cavity 50 for installing the PCB 30 and filling the potting adhesive; the L-shaped step 15 is matched with the outer contour of the base of the lower shell seat 20, the lower shell seat 20 can be abutted against the L-shaped step 15, the L-shaped step and the lower shell seat are mutually matched and limited, are not easy to shake, and are locked through locking pieces 40 such as bolts.

Specifically, the inner side of the upper shell wall 14 is also provided with a guide rib 16; the outer edge of the PCB 30 is provided with a first guiding gap 33 matched with the guiding rib 16; the lower housing seat 20 is provided with second guide notches 22 adapted to the guide ribs 16. The first guide notch 33 and the second guide notch 22 can limit the position of the PCB 30 when the PCB 30 is pushed into the accommodating cavity 50 and attached to the reflective upper shell 10, so that the PCB 30 is prevented from inclining or turning in the assembling process; and the guide ribs 16 are also fitted with the second guide notches 22, the lower housing 20 of the cylindrical disk can be aligned with the relative positions of the reflective upper housing 10 and the lower housing 20 by being restricted by the guide ribs 16.

In the present embodiment, a lower housing wall 23 extends from a side of the lower housing 20 facing away from the reflective upper housing 10; the lower shell wall 23 is provided with a connecting buckle 24. Through connecting the buckle 24, can be with lower casing 20 joint in the display area piece or the control button of the electron device that uses this display screen, the installation of display screen is swift convenient, can match the function that the control button is whole to press or the knob simultaneously.

In some embodiments, a side of the lower housing 20 facing away from the PCB board 30 is provided with a light blocking cushion 70. The light-shielding cushion 70 is used as a spacer structure, so that the locking pressure distribution of the locking members 40 such as bolts can be more uniform, and gaps of the connecting holes 21 can be covered, thereby reducing the defect of light leakage.

In this embodiment, a display film 80 is attached to the front surface of the reflective upper case 10. The display film 80 can be changed according to the needs of the user to match with various household appliances.

In the present embodiment, the reflective upper housing 10 and the reflective lower housing 20 are formed by injection molding of plastic material. Such as PC, PPO, PC + ABS, etc.

Of course, the present invention is not limited to the above-mentioned embodiments, and those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of the present invention, and such equivalent modifications and substitutions are included in the scope defined by the claims of the present application.

Claims

1. A digital screen with a locking and fixing structure is characterized by comprising: the reflection type PCB comprises a reflection upper shell (10), a lower shell seat (20), a PCB (30) and a locking piece (40);

the reflection upper shell (10) is provided with a front surface and a back surface, and the back surface of the reflection upper shell (10) is provided with an accommodating cavity (50); the PCB (30) is arranged in the accommodating cavity (50), and one side of the PCB (30) facing the reflecting upper shell (10) is provided with a light-emitting unit; the lower shell seat (20) is arranged on the back surface of the reflection upper shell (10) and can cover the containing cavity (50);

the reflection upper shell (10) is provided with a connecting column (11); the connecting column (11) extends towards the lower shell seat (20); the lower shell seat (20) is provided with a connecting hole (21) corresponding to the connecting column (11); the locking piece (40) can penetrate through the connecting hole (21) and is tightly matched with the connecting column (11) so as to fixedly connect the reflection upper shell (10) and the lower shell seat (20).

2. The digital screen with locking fixing structure as claimed in claim 1, wherein: the connecting column (11) is provided with a threaded hole (111), and the locking piece (40) is a bolt piece matched with the threaded hole (111).

3. The digital screen with locking fixing structure as claimed in claim 1, wherein: two plug-in terminals (31) are arranged on one side of the PCB (30) facing the lower shell seat (20) at intervals, and the signal wire (60) can be plugged in the plug-in terminals (31); the two connecting columns (11) are arranged and are positioned at two opposite ends of the interval of the two plug terminals (31).

4. The digital screen with locking fixing structure as claimed in claim 1, wherein: the reflection upper shell (10) is provided with a plurality of reflection cavities (12) which run through the front surface and the back surface; the reflecting cavity (12) is arranged corresponding to the light-emitting unit.

5. The digital screen with locking fixing structure as claimed in claim 1, wherein: the back of the reflection upper shell (10) is provided with a plurality of positioning columns (13), and the PCB (30) is provided with a plurality of positioning holes (32) matched with the positioning columns (13).

6. The digital screen with locking fixing structure as claimed in claim 1, wherein: an upper shell wall (14) extends towards the back from the outer edge of the reflecting upper shell (10); the containing cavity (50) is formed by enclosing the inner walls of the reflecting upper shell (10) and the upper shell wall (14); an L-shaped step (15) is arranged at one end of the upper shell wall (14) close to the lower shell seat (20), and the lower shell seat (20) can abut against the L-shaped step (15).

7. The digital screen with locking fixing structure as claimed in claim 6, wherein: the inner side of the upper shell wall (14) is also provided with a guide rib (16); the outer edge of the PCB (30) is provided with a first guide notch (33) matched with the guide rib (16); the lower shell seat (20) is provided with a second guide notch (22) matched with the guide rib (16).

8. The digital screen with locking fixing structure as claimed in claim 1, wherein: a lower shell wall (23) extends from one side of the lower shell seat (20) departing from the reflection upper shell (10); the lower shell wall (23) is provided with a connecting buckle (24).

9. The digital screen with locking fixing structure as claimed in claim 1, wherein: one side of the lower shell seat (20) departing from the PCB (30) is provided with a shading buffer pad (70).

10. The digital screen with locking fixing structure as claimed in claim 1, wherein: a display membrane (80) is adhered to the front surface of the reflection upper shell (10).