CN202111985U - Mounting tab for EMI shielding - Google Patents

Abstract

The utility model discloses the stationary blade of EMI shade is including at least: a pedestal and anchor clamps, this pedestal is equipped with at least one plane portion, the straight line of this plane portion both sides extends there is the extension, this anchor clamps are located on each extension, it is equipped with the shell fragment that extends upwards by this extension both sides, this shell fragment lies in the belly that forms great space below relatively, extend to the neck that the upper contraction is the little distance, then upwards be for expanding outward the portion, and two shell fragments are for this belly department and be equipped with a perforation, the curb plate of this EMI shade can insert this anchor clamps, and the curb plate of this EMI shade is equipped with at least a bulge, the perforation card brake that can supply this anchor clamps reaches fixed effect, can upwards extract and reach the purpose of the operation and the maintenance of simple separation.

Description

Mounting tab for EMI shielding

technical field

The utility model relates to a fixing piece of an EMI cover, in particular to the fixing piece of an EMI cover which can be quickly disassembled and assembled.

Background technique

As we all know, almost all electronic products will generate electromagnetic interference (EMI) problems during operation, and electromagnetic interference refers to the electromagnetic waves generated by the electromagnetic induction effect on the surrounding electronic equipment after the electrical product itself is powered on. The interference effect caused by electromagnetic interference is also because electromagnetic interference will cause interruption of other electrical equipment, abnormal shutdown, increased maintenance, crosstalk and system delay, and human injury. Therefore, advanced countries have legislated for electromagnetic problems in electronic products specification.

Therefore, in the planning and design of the product, possible electromagnetic problems must be eliminated. If there is no careful consideration in the early stage of design, a precise design should be made for the entire product from external devices such as shells, slots, and apertures to internal component arrangements and materials. , when the test fails later, the cost will be much greater than the original estimate. In response to the aforementioned requirements, some specific electronic components on the circuit board are currently covered with EMI shields to avoid damage from electromagnetic wave radiation effects.

The EMI shield commonly used in the industry is an integrally formed shield body, the shield body has a top wall and a support arm vertically extending from the periphery of the top wall. When in use, the cover is placed on the electronic component that needs to be shielded, and the support arm is fixed on the circuit board on which the electronic component is arranged by means of welding or the like. However, in the actual production or maintenance process, when there is a problem with the electronic component, engineers need to desolder the electromagnetic shielding cover and then remove it before checking the electronic component. The above-mentioned electromagnetic shielding cover makes it inconvenient for engineering personnel to operate and maintain.

Utility model content

In view of this, the technical problem solved by the utility model is to provide a fixed piece of an EMI shield, which can quickly carry out disassembly and assembly of the EMI shield.

The technical solution of the utility model is: a fixed piece of an EMI shield, which includes: a base body, the base body is provided with at least one plane part, and extension parts are linearly extended on both sides of the plane part; and a clamp is located on On each extension part, the clamp is provided with a shrapnel extending upward from both sides of the extension part. The shrapnel is relatively located at the bottom to form a larger space in the abdomen, extending to the upper part to shrink into a neck with a small distance, and then upwards to expand into an outer part. Zhang part, and the two elastic pieces are provided with a perforation relative to the abdomen.

Wherein: the end of the stretched portion is further bent inward to form an arc portion.

Wherein: the EMI shield is provided with a plurality of side plates for fixing the fixing piece, and each side plate is provided with at least one protruding portion, which can be fixed by the through hole of the clamp.

Wherein: the plane part is provided with at least one notch.

Wherein: the extension part is provided with at least one notch.

Wherein: the plane portion and the extension portion are provided with at least one notch.

The beneficial effects of the utility model are as follows: a base and a fixture, the base is provided with at least one plane part, extension parts are linearly extended on both sides of the plane part, the clamp is arranged on each extension part, and the extension part is provided with The shrapnel extending upwards on both sides, the shrapnel is relatively located at the abdomen below to form a large space, extends to the neck that shrinks to a small distance above, and then expands to the outward expansion part upwards, and the two shrapnels are arranged side by side relative to the abdomen. There is a perforation, the side plate of the EMI shield can be inserted into the clamp, and the side plate of the EMI shield is provided with at least one protrusion, which can be used for the through hole of the clamp to achieve a fixed effect, or can be pulled out upwards to To achieve the purpose of simple and separate operation and maintenance.

Description of drawings

Fig. 1 is a three-dimensional schematic view of the first embodiment of the fixing piece in the present invention.

Fig. 2 is a structural schematic diagram of the fixing piece in the utility model.

Fig. 3 is an exploded view of the use structure of the fixing piece in the utility model.

Fig. 4 is a structural schematic diagram of an EMI shield inserted into a fixing piece in the present invention.

Fig. 5 is a schematic structural view of the second embodiment of the fixing piece in the present invention.

Description of figure number:

Fixed piece 1

Seat 11

Plane 111

Extension 112

Notch 113

Fixture 12

Shrapnel 121

Belly 122

neck 123

External Department 124

Perforated 125

Curved part 126

circuit board 2

EMI Mask 3

side panel 31

Protrusion 311 .

Detailed ways

The basic structure of the fixing piece of the utility model EMI mask is shown in Figure 1 and Figure 2, the fixing piece 1 at least includes: a seat body 11 and a clamp 12; wherein:

The seat body 11 is provided with at least one plane portion 111 , and extension portions 112 extend linearly from two sides of the plane portion 111 .

The clamp 12 is arranged on each extension part 112, and the clamp 12 is provided with an elastic piece 121 extending upward from both sides of the extension part 112. The elastic piece 121 is relatively located at the abdomen 122 which forms a large space at the bottom, and shrinks to a small distance when extended to the top. The neck portion 123 expands upwards to form a flared portion 124 , and the two elastic pieces 121 are provided with a perforation 125 opposite to the abdomen 122 .

When used as a whole, as shown in Figure 3, the fixed piece 1 can be fixed on a circuit board 2 first, and another EMI shield 3 can be assembled and fixed from the top of the fixed piece 1 downwards, and the EMI shield 3 is provided with multiple sides. The plate 31 is used for fixing the fixed piece 1, and each side plate 31 is provided with at least one protruding portion 311, whereby, please also refer to FIG. Elastic space, while the neck 123 is affected by the elasticity of the abdomen 122 and has the function of clamping the side plate 31 of the EMI shield 3, while the flared part 124 has the function of guiding the side plate 31 so as to stretch the neck 123 into The abdomen 122 enables the protrusions 311 of each side plate to be locked and fixed in the through holes 125 to achieve a fixing effect. 

In addition, as shown in the second embodiment of FIG. 5 , the end of the outwardly stretched portion 124 of the fixing sheet is further bent inwardly to form an arc portion 126 , which can avoid the risk of scratches caused by the outwardly stretched portion 124 ; and the flat portion 111 and/or the extension part 112 is provided with at least one notch 113, as shown in FIG. 1, when the fixing structure is soldered to the circuit board, the notch 113 can increase the contact area with the solder and enhance its soldering effect.

Claims (6)

1. a kind of fixed piece of EMI mask, is characterized in that, comprises: A seat body, the seat body is provided with at least one plane part, and extension parts are linearly extended on both sides of the plane part; and The clamp is set on each extension part, and the clamp is provided with a shrapnel extending upward from both sides of the extension part. The shrapnel is relatively located at the lower part to form a larger space in the abdomen, and extends to the upper part of the neck that shrinks into a small distance. In order to expand into a flared part, and the two elastic pieces are provided with a perforation opposite to the abdomen. 2 . The fixing piece of the EMI shield according to claim 1 , wherein the end of the flared portion is further bent inward to form an arc portion. 3 . 3. The fixed sheet of the EMI shield as claimed in claim 1 or 2, wherein the EMI shield is provided with a plurality of side plates for fixing the fixed sheet, and each side plate is also provided with at least one protrusion, It can be fixed by the through-hole catch of this clamp. 4. The fixing piece of the EMI shield according to claim 1 or 2, wherein the plane portion is provided with at least one notch. 5. The fixing piece of the EMI shield as claimed in claim 1 or 2, wherein the extension part is provided with at least one notch. 6. The fixing piece of the EMI shield according to claim 1 or 2, wherein at least one notch is formed on the plane portion and the extension portion.

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