CN202095246U - EMI shield mount - Google Patents

Abstract

The utility model discloses EMI shade mounting, it is at least including: 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 above shrink is the little distance, then upwards for expanding to the portion of expanding outward, and each neck is fixed to extend downwards towards the inside of anchor clamps and is had the portion of compelling tight, by this, make the curb plate of EMI shade can be fixed by the centre gripping with the mode of inserting the income position, can upwards extract and reach the purpose of simple operation and maintenance of separation, and further form dual clamping effect by this neck and the portion of compelling tight.

Description

EMI shield mount

technical field

The utility model relates to an EMI cover fixing part, in particular to an EMI cover fixing part which can quickly carry out disassembly and assembly operations on the EMI cover.

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 components required to be covered, and the support arm is fixed on the circuit board on which the electronic components are 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, the engineer needs to desolder the electromagnetic shield and remove it before checking the electronic component. The above-mentioned electromagnetic shield makes it inconvenient for engineering personnel to operate and maintain.

Utility model content

The technical problem solved by the utility model is to provide an EMI cover fixing part, which can quickly carry out disassembly and assembly operations of the EMI cover fixing part.

The technical solution of the present invention is: an EMI shielding fixture, which at least includes: 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 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. Tension part, and each neck has a tight part extending downward toward the inside of the fixture.

Wherein, a step portion is further formed between the plane portion and the extension portion, so that the height of the extension portion is higher than the plane portion.

The end of the extension part is formed with a tail part, and a step difference part is further formed between the tail part and the extension part, so that the height of the extension part is higher than the tail part.

The end of the flared portion is further bent inward to form an arc portion.

The pressing part is formed with convex points toward the inside of the clamp.

The beneficial effects of the present utility model are: the EMI shielding fixture conforming to the present utility model, which at least includes: a base and a fixture, the base is provided with at least one plane part, and extension parts are linearly extended on both sides of the plane part, The clamp is arranged on each extension part, and it 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, and extends to the upper part of the neck that shrinks into a small distance. It is expanded into an outwardly stretched part, and each neck is fixed toward the inside of the fixture and extends downward with a tightening part, so that the side panels of the EMI shield can be clamped and fixed by inserting into place, or can be pulled upwards Out to achieve the purpose of simple separate operation and maintenance.

Furthermore, the neck and the pressing part can further form a double clamping effect to achieve the effect of stable positioning.

Description of drawings

Fig. 1 is a schematic perspective view of the first embodiment of the fixing part in the present invention.

Fig. 2 is a schematic diagram of the structure of the fixing part in the utility model.

Fig. 3 is an exploded diagram of the use structure of the fixing part in the utility model.

Fig. 4 is a schematic diagram of the use of the fixing part to be inserted into the fixing part in the utility model.

Fig. 5 is a schematic diagram of inserting and positioning the fixing part of the EMI shield into the fixing part in the utility model.

Fig. 6 is a schematic diagram of the structure of the fixing member fixed on the circuit board in the utility model.

Fig. 7 is a schematic structural diagram of the second embodiment of the fixing part in the utility model.

Description of figure number:

Fixture 1

Seat 11

Plane 111

Extension 112

Step difference department 113

Tail 114

Fixture 12

Shrapnel 121

Belly 122

neck 123

External Department 124

Urgent Department 125

Bump 126

Curved part 127

circuit board 2

Solder 21

EMI Mask 3

Side panels 31 .

Detailed ways

The basic structure of the EMI shield fixing part of the utility model is shown in Figure 1 and Figure 2, the fixing part 1 at least includes: a seat body 11 and a clamp 12; wherein: the seat body 11 is provided with at least one plane part 111, the plane Extending portions 112 are linearly extended on both sides of the 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 necks 123 of the necks expand upwards to become the stretched portions 124 , and each necks 123 is fixed to have a pressing portion 125 extending downward toward the inside of the clamp 12 .

When used as a whole, as shown in Figure 3, the fixing part 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 fixing part 1 downwards, thereby, please refer to Figure 4 and As shown in Fig. 5, the abdomen 122 and the pressing part 125 formed by the two elastic pieces 121 have a considerable elastic space, while the neck 123 and the pressing part 125 are subjected to the elasticity of the abdomen 122 to hold the EMI shield. The function of the side plate 31 of the cover 3, and the outward expansion part 124 has the function of guiding the side plate 31 so that the neck 123 can be stretched into the abdomen 122, and can be fixed by using the elastic clamping force of the neck 123 and the pressing part 125 .

Furthermore, a step portion 113 is further formed between the flat portion 111 of the fixing member and the extension portion 112, as shown in FIG. 1 and FIG. 112 is formed with a tail portion 114, and a step portion 113 is also formed between the tail portion 114 and the extension portion 112, so that the height of the extension portion 112 is slightly higher than the tail portion 114, and the plane portion 111 and the tail portion 114 are located They are on the same plane, so when the fixing member 1 is soldered to the circuit board 2 , a glue overflow space is formed between the step portion 113 and the circuit board 2 , so that excess solder 21 can overflow into the glue overflow space.

In addition, as shown in the second embodiment of FIG. 7, the pressing part 125 is formed with a convex point 126 toward the inside of the clamp 12, which can enhance the contact and positioning effect, and the end of the outer tension part 124 of the fixing member can also be bent inward. The curved portion 127 can avoid the risk of scratches caused by the flared portion 124 .

Claims (5)

1. An EMI shielding fixture is characterized in that it at least includes: 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 an external stretching part, each neck is fixed to have a pressing part extending downward toward the inside of the clamp. 2. The EMI shield fixture as claimed in claim 1, wherein a step portion is further formed between the planar portion and the extension portion, so that the height of the extension portion is higher than the planar portion. 3. The EMI shield fixture as claimed in claim 1 or 2, wherein the end of the extension is formed with a tail, and a step is further formed between the tail and the extension, so that the height of the extension is high at the tail. 4. The EMI shield fixing member according to claim 1 or 2, wherein the end of the flared portion is further bent inward to form an arc portion. 5. The EMI shield fixture as claimed in claim 1 or 2, wherein the pressing part is formed with a convex point towards the inside of the clamp.

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