CN217957547U

CN217957547U - Anti-seismic set top box shell structure

Info

Publication number: CN217957547U
Application number: CN202221744411.8U
Authority: CN
Inventors: 叶青; 李孝俊
Original assignee: Anhui Yingda Electronic Technology Co ltd
Current assignee: Anhui Yingda Electronic Technology Co ltd
Priority date: 2022-07-06
Filing date: 2022-07-06
Publication date: 2022-12-02
Anticipated expiration: 2032-07-06

Abstract

The utility model discloses an antidetonation type STB shell structure, be the casing of opening form, set up at the inboard circuit board of casing and install the cap in casing upper end and cover the casing including the upper end, be provided with between four corners of casing, cap and circuit board and be used for the spacing installation of circuit board and shock-resistant jam plate device. The utility model discloses in, through set up spacing blend stop and support tray between four corners of original casing and circuit board, can be inboard at the casing with the diversified flexible bracket of circuit board, when the casing outside received impact load, can effectually absorb impact load and buffer treatment, reduced the production of the impaired problem of circuit board impact to set up box shell structure's antidetonation effect has been promoted.

Description

Anti-seismic set top box shell structure

Technical Field

The utility model relates to a STB technical field especially relates to an antidetonation type STB shell structure.

Background

A digital video converter box, commonly referred to as a set-top box or set-top box, is a device that connects a television set to an external source. It can convert the compressed digital signal into television content and display it on the television. The signals may come from cable, satellite dish, broadband network and terrestrial broadcast.

However, the existing set-top box shell structure still has the following defects: most circuit boards are integrally installed in the shell through fastening screws, and when the outside of the shell is subjected to impact load, the impact load can be indirectly transmitted to the circuit boards, so that electrical elements on the circuit boards are damaged by impact, and the anti-seismic effect of the shell structure of the set top box is reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: the anti-seismic set top box shell structure aims to solve the problems that a traditional set top box shell structure is poor in anti-seismic effect and a circuit board is easy to damage due to impact load.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides an antidetonation type STB shell structure, is the casing of opening form including the upper end, sets up the circuit board at the casing inboard and installs the cap in the casing upper end and cover the casing, be provided with between four corners of casing, cap and circuit board and be used for the spacing installation of circuit board and antidetonation jam plate device.

As a further description of the above technical solution:

the locking plate device comprises limiting blocking strips integrally formed at two sides of four corners of the shell, an inserting block cavity formed between the corners of the shell and the limiting blocking strips, and a supporting support block movably installed on the inner side of the inserting block cavity and buckled with the circuit board, wherein the supporting support block is made of a silica gel material.

As a further description of the above technical solution:

the locking plate device also comprises inner studs integrally formed at the four corners of the lower end of the shell cover and fastening screws which are arranged at the four corners of the lower end of the shell and correspond to the inner studs.

As a further description of the above technical solution:

the inner side of the supporting support block is provided with a slot for splicing and buckling the corners of the circuit board, and the middle part of the supporting support block is positioned at the outer side of the inner stud and is provided with a through hole.

As a further description of the above technical solution:

the left end and the right end of the shell are both provided with a plurality of ventilation holes with inclined downward openings, and the inner sides of the left end and the right end of the shell are both provided with an air filtering net for covering the plurality of ventilation holes.

As a further description of the above technical solution:

the heat conduction module is characterized in that a hollow heat conduction block is arranged in the middle of the lower end of the shell, heat conduction silicone grease is filled between the upper end of the heat conduction block and the circuit board, and a filling layer is filled in the inner cavity of the heat conduction block.

As a further description of the above technical solution:

the heat conduction block is made of red copper materials, and the filling layer is heat conduction oil.

To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:

1. the utility model discloses in, through having set up spacing blend stop and support tray between four corners at original casing and circuit board, when will supporting the tray and alternate four corners of circuit board respectively through the slot, and vertical inserting down behind the inserted block intracavity of casing, the circuit board just can synthesize spacing bracket between four support trays, when impact load acts on the casing, four support trays just can disperse and absorb most impact load, partly impact load can cushion through elastic deformation, this kind of structure can be inboard at the casing with the diversified flexible bracket of circuit board, when the casing outside receives impact load, can effectually absorb and the buffering with impact load, the production of the impaired problem of circuit board impact has been reduced, thereby set-top box shell structure's antidetonation effect has been promoted.

2. The utility model discloses in, through set up the draught hole and strain the air mesh between the left and right sides of casing, the lower extreme at the casing has set up the heat conduction piece simultaneously, in the daily use, external air accessible draught hole link up and enters into in the casing, the hot-air that produces in the casing alright discharge through the draught hole simultaneously, heat conduction silicone grease on the heat conduction piece can absorb and conduct downwards to the heat conduction piece and the conduction oil in with the heat that produces on the circuit board simultaneously, heat conduction piece and conduction oil can carry out high-efficient absorption with the heat simultaneously, dispersion and conduction downwards to air and desktop on, this kind of structure can carry out the heat dissipation processing of synthesizing with the circuit board in the course of the work, the thermal discharge in the circuit board course of the work has been accelerated, the circuit board has been reduced and has lasted the production that high temperature leads to work abnormal problem.

Drawings

Fig. 1 is a schematic three-dimensional explosion diagram of a shell structure of an anti-seismic set top box according to the present invention;

fig. 2 is a schematic perspective front view of the present invention;

fig. 3 is a schematic view of the three-dimensional front cut-open of the present invention.

Illustration of the drawings:

1. a housing; 101. a limiting barrier strip; 102. a plug-in block cavity; 103. a ventilation hole; 2. a shell cover; 201. an inner stud; 3. a circuit board; 4. fastening screws; 5. supporting the supporting block; 501. a slot; 502. a through hole; 6. a heat conducting block; 601. heat-conducting silicone grease; 602. a filling layer; 7. and (4) an air filtering net.

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 of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: the utility model provides an antidetonation type STB shell structure, is the casing 1 of opening form including the upper end, sets up at 1 inboard circuit board 3 of casing and installs 1 upper end of casing and cover casing 2 of 1, is provided with between four corners of casing 1, casing 2 and circuit board 3 to be used for 3 spacing installations of circuit board and antidetonation jam plate device.

Specifically, as shown in fig. 1-3, the locking plate device includes limiting bars 101 integrally formed at two sides of four corners of the housing 1, an inserting block cavity 102 formed between the corners of the housing 1 and the limiting bars 101, and a supporting block 5 movably installed inside the inserting block cavity 102 and fastened to the circuit board 3, the supporting block 5 is made of a silica gel material, and the selection of the material improves the energy absorption effect of the supporting block 5, and can efficiently disperse, absorb and buffer the impact load transmitted from the housing 1 to the circuit board 3, the locking plate device further includes inner studs 201 integrally formed at the four corners of the lower end of the housing 2 and fastening screws 4 disposed at the four corners of the lower end of the housing 1 and corresponding to the inner studs 201, slots 501 for inserting and fastening at the corners of the circuit board 3 are disposed at the inner side of the supporting block 5, through holes 502 are disposed at the outer side of the inner studs 201 at the middle portion of the supporting block 5, and the through holes 502 are disposed at the outer side of the inner studs 201, so that the inner studs 201 on the housing 2 can be inserted downward into the housing 1, thereby facilitating the fixing operation between the fastening screws 4 and the inner studs 201.

Specifically, as shown in fig. 1 to 3, a plurality of ventilation holes 103 with openings facing obliquely downward are formed in the outer sides of the left end and the right end of the housing 1, an air filter 7 covering the plurality of ventilation holes 103 is installed on the inner sides of the left end and the right end of the housing 1, the air filter 7 can filter air entering the ventilation holes 103, external dust and solid impurities are reduced to enter the housing 1, a hollow heat conduction block 6 is installed in the middle of the lower end of the housing 1, heat conduction silicone grease 601 is filled between the upper end of the heat conduction block 6 and the circuit board 3, heat generated by the circuit board 3 can be efficiently absorbed and is conducted downwards to the heat conduction block 6 and the filling layer 602 for heat dissipation, a filling layer 602 is filled in the inner cavity of the heat conduction block 6, the heat conduction block 6 is made of red copper material, the filling layer 602 is heat conduction oil, and is filled in the heat conduction block 6 to efficiently absorb and disperse heat, thereby accelerating heat transmission and discharge.

The working principle is as follows: when the set top box is assembled, an operator can insert and buckle the four supporting support blocks 5 on four corners of the circuit board 3 through the inserting grooves 501 in advance, when the four supporting support blocks 5 are all fixed on the circuit board 3, the four supporting support blocks 5 can be respectively oriented and vertically and downwards slide into the four insert block cavities 102 on the shell 1, after the circuit board 3 is placed in the shell 1, the shell cover 2 can downwards cover the shell 1, the four fastening screws 4 are upwards screwed into the inner studs 201 of the shell cover 2 by using a tool, after the fastening screws 4 are screwed, the shell cover 2 can be locked on the shell 1, meanwhile, the four supporting support blocks 5 can be limited among the shell 1, the shell cover 2 and the circuit board 3 in all directions, the assembling operation of the set top box is completed, in the daily use process, when impact load acts on the shell 1 or the shell cover 2 from the outside, the impact load can be conducted inwards in advance to cause the four supporting support blocks 5, the four supporting support blocks 5 can disperse the impact load, meanwhile, most of the impact load can be absorbed, and part of the impact load can be deformed through the supporting blocks 5, so that the impact load is directly reduced through the buffer.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides an antidetonation type STB shell structure, includes that the upper end is casing (1) of opening form, sets up circuit board (3) in casing (1) inboard and installs cap (2) in casing (1) upper end and cover casing (1), its characterized in that, be provided with between four corners of casing (1), cap (2) and circuit board (3) and be used for spacing installation of circuit board (3) and antidetonation jam plate device.

2. An anti-seismic set top box shell structure as claimed in claim 1, wherein said locking plate means comprises a position-limiting barrier (101) integrally formed at two sides of four corners of the shell (1), a plug-in block cavity (102) formed between the corners of the shell (1) and the position-limiting barrier (101), and a supporting bracket (5) movably mounted inside the plug-in block cavity (102) and fastened to the circuit board (3), wherein the supporting bracket (5) is made of silicone material.

3. An anti-seismic set-top box casing structure according to claim 2, wherein the locking plate means further comprises inner studs (201) integrally formed at four corners of the lower end of the casing cover (2) and fastening screws (4) provided at the four corners of the lower end of the casing (1) corresponding to the inner studs (201).

4. An anti-seismic set top box shell structure as claimed in claim 3, wherein the inner side of the supporting bracket (5) is provided with a slot (501) for inserting and buckling at the corner of the circuit board (3), and the middle part of the supporting bracket (5) is positioned at the outer side of the inner stud (201) and is provided with a through hole (502).

5. An anti-seismic set-top box shell structure according to claim 1, wherein a plurality of ventilation holes (103) with openings facing obliquely downwards are formed on the outer sides of the left end and the right end of the shell (1), and air filtering nets (7) covering the plurality of ventilation holes (103) are mounted on the inner sides of the left end and the right end of the shell (1).

6. An anti-seismic set top box shell structure according to claim 5, wherein a heat conducting block (6) with a hollow interior is installed in the middle of the lower end of the shell (1), heat conducting silicone grease (601) is filled between the upper end of the heat conducting block (6) and the circuit board (3), and a filling layer (602) is filled in the inner cavity of the heat conducting block (6).

7. An anti-seismic set-top box shell structure according to claim 6, wherein the heat conducting block (6) is made of red copper material and the filling layer (602) is heat conducting oil.