CN218125288U

CN218125288U - Electronic shielding structure

Info

Publication number: CN218125288U
Application number: CN202221237191.XU
Authority: CN
Inventors: 李华锋
Original assignee: Mei Mei Mei Electronics Industry Co ltd
Current assignee: Mei Mei Mei Electronics Industry Co ltd
Priority date: 2022-05-20
Filing date: 2022-05-20
Publication date: 2022-12-23
Anticipated expiration: 2032-05-20

Abstract

The utility model relates to the technical field of electronic shielding structures, in particular to an electronic shielding structure, which comprises a shielding cover, wherein two groups of convex plates are symmetrically connected with two sides of the shielding cover, and the shielding cover is covered on a shielding frame mechanism with a fixing function; place shielding frame mechanism directly over the chip, slowly make shielding frame mechanism descend, make four group's reference columns insert in four group's location rectangle holes that correspond, the chamfer that reference column tip set up this moment supports the fixture block, press the shielding frame main part this moment, the chamfer that makes reference column tip set up extrudees the fixture block, the fixture block will compress U type shell fragment, the chamfer that reference column tip set up simultaneously removes along the fixture block, until under the elastic action at U type shell fragment, make the fixture block slide in the recess that sets up on the reference column, make the reference column spacing in the cavity, thereby with whole shielding frame mechanism pre-fixing on the PCB board, secondly U type shell fragment, the fixture block, the cooperation of reference column is set for, the dismantlement of shielding frame mechanism of being convenient for, and then the staff of being convenient for is to the change of chip.

Description

Electronic shielding structure

Technical Field

The utility model relates to an electronic shielding structure technical field specifically is an electronic shielding structure.

Background

The shielding cover is the electron hardware that electron, wireless communication product are used for shielding the necessary electromagnetic signal interference, and the shielding cover that on-vehicle electronic product was used also divide into the integral type and two style of frames, and two style of frames are mainly by, and the shielding cover comprises with the shield frame, not only makes things convenient for the later stage to the chip of shielding cover the inside and electronic component's maintenance, and shielding effect is good simultaneously.

Electronic product generally installs on the PCB board, the PCB board is located the shield frame, the shield frame generally welds on the PCB board, the shield cover joint is on the shield frame, consequently, the better dismantlement of shield cover, if maintain under not dismantling chip and electronic component condition, the shield frame can not influence staff's operation, but if need change chip and electronic component, because chip and electronic component are located the shield frame, the shield frame space is narrower and smaller, consequently, make staff dismantle chip and electronic component and receive the influence.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an electronic shielding structure to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: an electronic shielding structure comprises a shielding cover, wherein two sides of the shielding cover are symmetrically connected with two groups of convex plates, and the shielding cover is covered on a shielding frame mechanism with a fixing function;

the shielding frame mechanism comprises a shielding frame main body, four groups of cavities are symmetrically arranged on the shielding frame main body, a rectangular guide hole is formed in one side of each cavity, a positioning rectangular hole is formed in the bottom of each cavity, a positioning column is arranged in each positioning rectangular hole, a groove is formed in one side of each positioning column, and a fixing mechanism is arranged in each cavity.

Preferably, the fixing mechanism comprises a U-shaped elastic sheet, one side of the U-shaped elastic sheet is connected with the clamping block, the other side of the U-shaped elastic sheet is provided with a bearing block, the bearing block is in sliding connection with the two groups of guide pillars, one end of the bearing block is connected with the pressing block, and one side of the pressing block is provided with a rubber pad.

Preferably, a chip is arranged in the shielding frame main body and is positioned on the PCB.

Preferably, the positioning columns are in sliding connection with the positioning rectangular holes, the four groups of positioning columns are fixed on the PCB, and the four groups of positioning columns are symmetrically distributed around the chip.

Preferably, the groove is clamped with the clamping block, and the rectangular guide hole is connected with the pressing block in a sliding mode.

Preferably, two groups of guide holes are symmetrically arranged on the bearing block, the guide holes are connected with the guide pillars in a sliding mode, and one ends of the guide pillars are fixedly connected with the inner wall of the cavity.

Compared with the prior art, the beneficial effects of the utility model are that:

1. placing a shielding frame mechanism right above a chip, slowly lowering the shielding frame mechanism to enable four groups of positioning columns to be inserted into four corresponding groups of positioning rectangular holes, wherein the inverted inclined planes arranged at the end parts of the positioning columns abut against a clamping block, the main body of the shielding frame is pressed to enable the inverted inclined planes arranged at the end parts of the positioning columns to extrude the clamping block, the clamping block compresses a U-shaped elastic sheet, the inverted inclined planes arranged at the end parts of the positioning columns move along the clamping block until the clamping block slides into a groove arranged on the positioning columns under the elastic action of the U-shaped elastic sheet, so that the positioning columns are limited in a cavity, the whole shielding frame mechanism is pre-fixed on a PCB, and then the U-shaped elastic sheet, the clamping block and the positioning columns are matched for setting, so that the shielding frame mechanism is convenient to disassemble, and further, a worker can conveniently replace the chip;

2. place the shield cover directly over shield frame mechanism, slowly with shield cover downstream, make the shield cover lid in the shield frame main part, extrude the inclined plane that falls that the briquetting tip set up until shield cover port portion, shield cover port portion moves along the inclined plane that falls, the briquetting promotes to accept the piece and retreats along the guide pillar simultaneously, and further compress U type shell fragment, the shield cover port portion that staggers of inclined plane that falls until the briquetting tip sets up, this moment under the elastic action of U type shell fragment, make the briquetting promote the rubber pad and extrude the shield cover inner wall, because the settlement of rubber pad, make frictional force grow between briquetting and the shield cover, thereby make the shield cover can't break away from the shield frame main part by oneself, secondly U type shell fragment elasticity grow under further compression, make the power grow of fixture block extrusion reference column, thereby make shield frame mechanism be located more firm on the PCB board.

Drawings

FIG. 1 is a schematic view of the present invention;

FIG. 2 is a schematic view of the structure assembly of the present invention;

fig. 3 is a schematic sectional view of the structural shielding frame mechanism of the present invention.

In the figure: 1. a shield case; 2. a convex plate; 3. a shielding frame mechanism; 4. a chip; 5. a PCB board; 301. a shield frame main body; 302. a cavity; 303. a rectangular guide hole; 304. positioning the rectangular hole; 305. a positioning column; 306. a groove; 307. a fixing mechanism; 3071. a U-shaped elastic sheet; 3072. a clamping block; 3073. a guide post; 3074. briquetting; 3075. a rubber pad; 3076. a bearing block.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the 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 in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 3, the present invention provides a technical solution: an electronic shielding structure comprises a shielding cover 1, two sides of the shielding cover 1 are symmetrically connected with two sets of convex plates 2, the shielding cover 1 covers a shielding frame mechanism 3 with a fixing function, the shielding frame mechanism 3 comprises a shielding frame main body 301, four sets of cavities 302 are symmetrically arranged on the shielding frame main body 301, a rectangular guide hole 303 is arranged on one side of each cavity 302, a positioning rectangular hole 304 is arranged at the bottom of each cavity 302, a positioning column 305 is arranged in the positioning rectangular hole 304, a groove 306 is arranged on one side of each positioning column 305, a fixing mechanism 307 is arranged in each cavity 302, each fixing mechanism 307 comprises a U-shaped spring plate 3071, a fixture block 3072 is connected to one side of each U-shaped spring plate 3071, a chip 4 is arranged in the shielding frame main body 301, the chip 4 is positioned on a PCB 5, the positioning columns 305 are slidably connected with the positioning rectangular holes 304, the four sets of positioning columns 305 are all fixed on the PCB 5, the four sets of positioning columns 305 are symmetrically distributed around the chip 4, the grooves 306 are clamped with the fixture block 3072, wherein the fixture block 3072 is a set of arc blocks, the side of the groove 306 contacting with the fixture block 3072 is an arc-shaped surface, the end of the positioning column 305 is provided with an inverted slope, the inverted slope is tangent to the semicircular block, when the shielding structure needs to be installed, the shielding frame mechanism 3 is placed right above the chip 4, the shielding frame mechanism 3 is slowly lowered to enable the four groups of positioning columns 305 to be inserted into the corresponding four groups of positioning rectangular holes 304, the inverted slope arranged at the end of the positioning column 305 abuts against the fixture block 3072, at the moment, the shielding frame main body 301 is pressed to enable the inverted slope arranged at the end of the positioning column 305 to press the fixture block 3072, the fixture block 3072 is compressed by the fixture block 3072, meanwhile, the inverted slope arranged at the end of the positioning column 305 moves along the fixture block 3072 until the fixture block 3072 slides into the groove 306 arranged on the positioning column 305 under the elastic action of the U-shaped elastic sheet 3071, so that the positioning column 305 is limited in the cavity 302, and the whole shielding frame mechanism 3 is pre-fixed on the PCB 5, secondly, the U-shaped elastic sheet 3071, the fixture block 3072 and the positioning column 305 are matched and set, so that the shielding frame mechanism 3 is convenient to disassemble, and further, the chip 4 is convenient to replace by a worker;

the other side of the U-shaped dome 3071 is provided with a receiving block 3076, the receiving block 3076 is slidably connected with two sets of guide posts 3073, one end of the receiving block 3076 is connected with a pressing block 3074, one side of the pressing block 3074 is provided with a rubber pad 3075, the rectangular guide hole 303 is slidably connected with the pressing block 3074, the receiving block 3076 is symmetrically provided with two sets of guide holes, the guide holes are slidably connected with the guide posts 3073, one end of the guide posts 3073 is fixedly connected with the inner wall of the cavity 302, wherein the end part of the pressing block 3074 is provided with an inverted inclined surface, the rubber pad 3075 is provided with anti-skid lines, after the shielding frame mechanism 3 is pre-fixed on the PCB 5, the shielding cover 1 is placed right above the shielding frame mechanism 3, the shielding cover 1 is slowly moved downwards, the shielding cover 1 is covered on the shielding frame main body 301 until the port part of the shielding cover 1 is extruded to the inverted inclined surface arranged at the end part of the pressing block 3074, the port part of the shielding cover 1 moves along the inverted inclined surface, meanwhile, the receiving block 3076 is pushed by the pressing block 3074 to move back along the guide posts 3073, and further compress the U-shaped dome 71, so that the elastic pressing block 3071 can not push the inner wall of the shielding frame 305 to be larger, thereby enabling the shielding cover to be further, the shielding frame 305 to be further, the elastic pressing block 3071 to be larger, and the elastic pressing block 305 to be further, and the elastic pressing block 3071 to be further, thereby enabling the elastic pressing block 305 to be further enabling the shielding cover to be further enabling the elastic pressing block 305 to be larger.

The working principle is as follows: in the using process, when the shielding structure needs to be installed, the shielding frame mechanism 3 is placed right above the chip 4, the shielding frame mechanism 3 is slowly lowered, the four positioning columns 305 are inserted into the corresponding four positioning rectangular holes 304, the inverted slope arranged at the end portions of the positioning columns 305 abuts against the fixture block 3072, the shielding frame main body 301 is pressed at the moment, the inverted slope arranged at the end portions of the positioning columns 305 presses the fixture block 3072, the fixture block 3072 compresses the U-shaped elastic sheet 3071, the inverted slope arranged at the end portions of the positioning columns 305 moves along the fixture block 3072 until the fixture block 3072 slides into the groove 306 arranged on the positioning columns 305 under the elastic action of the U-shaped elastic sheet 3071, the shielding cover 1 is placed right above the shielding frame mechanism 3, the shielding cover 301 is slowly moved downwards, the shielding cover 1 covers the shielding frame main body 301 until the port portion of the shielding cover 1 presses the inverted slope arranged at the end portion of the pressing block 3074, the port portion of the shielding cover 1 moves along the inverted slope, the pressing block 74 pushes the 3076 to retreat along the U-shaped elastic sheet 3073, and further compresses the pressing block 3071 until the pressing block 74 presses the inner wall of the elastic sheet arranged at the end portion of the shielding cover 3074 and the elastic sheet 75 staggered at the end of the end portion arranged on the U-shaped elastic sheet 3074.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an electron shielding structure, includes shield cover (1), two sets of flange (2) of shield cover (1) bilateral symmetry connection, its characterized in that: the shielding cover (1) is covered on a shielding frame mechanism (3) with a fixing function;

shielding frame mechanism (3) are including shielding frame main part (301), the symmetry sets up four group cavity (302) on shielding frame main part (301), cavity (302) one side sets up rectangle guiding hole (303), and cavity (302) bottom sets up location rectangle hole (304), set up reference column (305) in location rectangle hole (304), recess (306) are seted up to reference column (305) one side, set up fixed establishment (307) in cavity (302).

2. An electronic shielding structure as recited in claim 1, wherein: the fixing mechanism (307) comprises a U-shaped elastic sheet (3071), one side of the U-shaped elastic sheet (3071) is connected with a clamping block (3072), the other side of the U-shaped elastic sheet (3071) is provided with a bearing block (3076), the bearing block (3076) is in sliding connection with two groups of guide posts (3073), one end of the bearing block (3076) is connected with a pressing block (3074), and one side of the pressing block (3074) is provided with a rubber pad (3075).

3. An electronic shielding structure as recited in claim 1, wherein: set up chip (4) in shielding frame main part (301), chip (4) are located PCB board (5).

4. An electronic shielding structure as recited in claim 1, wherein: the positioning columns (305) are connected with the positioning rectangular holes (304) in a sliding mode, the four groups of positioning columns (305) are fixed on the PCB (5), and the four groups of positioning columns (305) are symmetrically distributed on the periphery of the chip (4).

5. An electronic shielding structure as recited in claim 1, wherein: the groove (306) is clamped with the clamping block (3072), and the rectangular guide hole (303) is connected with the pressing block (3074) in a sliding mode.

6. An electronic shielding structure as recited in claim 2, wherein: two groups of guide holes are symmetrically arranged on the bearing block (3076), the guide holes are connected with guide pillars (3073) in a sliding mode, and one ends of the guide pillars (3073) are fixedly connected with the inner wall of the cavity (302).