JP3120187U - Upper cover structure of electromagnetic interference prevention mask - Google Patents

Abstract

An upper cover structure of an electromagnetic interference prevention shielding mask that can reduce the cost of a mold of an upper cover, can reduce the cost of materials, and can save manufacturing time.
The upper cover is covered with a shielding mask so that the cover plate of the shielding mask can be recovered after being lifted, and the upper cover is a plate, and the upper cover and the upper part of the shielding mask In between, a coupling device is provided, and the upper lid is coupled to the upper part of the shielding mask by the coupling device.
[Selection] Figure 2

Description

  The present invention relates to an upper lid structure of an electromagnetic interference prevention shielding mask, and more particularly to an upper lid structure which is covered by an upper portion of the shielding mask and can be restored to a shielding state after the lid plate of the shielding mask is lifted.

  In order to prevent electromagnetic interference (EMI) from affecting the operation of electronic elements such as a chip and a central processing unit, there is a shielding mask (as shown in FIG. 1) for preventing electromagnetic interference according to the present invention. The mask body 71 contains a storage space for accommodating the electronic element 8 in the mask body 71, and precut lines 72 are provided near the four peripheries in the upper part of the mask body 71. Thus, a cover plate 73 that is lifted up by one sheet is formed on the mask body 71. When the shielding mask 7 is covered outside the electronic element 8 mounted on the circuit board 9, the shielding mask 7 provides an electromagnetic wave shielding effect.

  The above-described shielding mask can effectively prevent electromagnetic interference from affecting the operation of the electronic device, and the manufacturing cost is low, and the cost of the raw material is greatly reduced, which is better than the conventional technology. Although effective, the design is not perfect and needs further improvement. That is, when the mask is restored to a shielded state by a separately installed upper lid (not shown in the figure), the cost of the mold is high because the upper lid is a full-mask design. The production cost is high and the production time is long, so the yield cannot be improved effectively.

  In order to solve the above problems, the present inventors have studied carefully, and propose the present invention that can rationally and effectively improve the above problems in accordance with academic operation.

  The main purpose of the present invention is that the upper lid is covered on the upper part of the shielding mask, and the upper lid is joined to the upper part of the shielding mask by the coupling device, so that the lid plate of the shielding mask is lifted. , Can be restored to the shielding state, and the upper lid, the plate design, the cost of the mold is greatly reduced, the cost of the material is reduced, the manufacturing time can be saved, and the output is effectively improved An upper cover structure for an electromagnetic interference prevention shielding mask is provided.

  In order to achieve the above object, the present invention covers the upper lid with a shielding mask, the upper lid is a plate, and a coupling device is provided between the upper lid and the upper portion of the shielding mask. The upper lid is the upper lid structure of the electromagnetic interference prevention shielding mask coupled to the upper part of the shielding mask by the coupling device.

  Hereinafter, the features and technical contents of the present invention will be described in detail with reference to the drawings. However, the drawings are merely for reference and explanation, and the present invention is not limited thereby.

  The present invention is an upper cover structure of an electromagnetic interference prevention shielding mask with reference to FIGS. 2, 3, and 4. The upper cover 1 is covered with an upper portion of a shielding mask 2, and a cover plate ( Even if (not shown in the figure) is lifted, it can be restored to the shielding state.

  The shielding mask 2 is a metal part, and includes a mask body 21 that covers the outside of the electronic element. The mask body 21 is a hollow body having a square shape or other shapes, and the mask body 21 includes an upper plate 211. And a side plate 212 extending downward from the periphery of the upper plate 211, a storage space 213 for accommodating electronic elements is formed between the upper plate 211 and the side plate 212, and the mask body 21 Covers the outside of the electronic element.

  A cover plate (not shown) that is lifted up in advance is provided at the center of the upper plate 211 of the mask body 21, and a precut line 214 having a cutting function is provided on the outer edge of the cover plate. The line 214 is provided near the four peripheral edges on the upper plate 211 of the mask body 21, and the pre-cut line 214 has a frame shape. The shielding mask 2 is covered outside the electronic element mounted on the circuit board, and the shielding mask 2 is appropriately fixed on the circuit board, thereby providing an electromagnetic wave shielding effect by the shielding mask 2. Thus, the influence of electromagnetic interference can be prevented from the operation of the electronic element.

  When maintaining an electronic device, a sharp object (for example, a screwdriver) is inserted into a hole (not shown in the figure) provided in advance, and the cover plate is lifted along the pre-cut line 214, so that the entire pre-cut line is Thus, an opening 215 having a large area is formed in the upper portion of the mask body 21 and is used for maintenance. After the maintenance, the upper lid 1 is covered by the upper part of the shielding mask 2, shields the opening 215, and restores the mask body 21 to the shielding state.

  The upper lid 1 is a metal part, the upper lid 1 is a rectangular or other shaped plate, and the upper lid 1 has an area larger than the area of the opening 215, so the upper lid 1 reliably shields the opening 215. The mask body 21 can be restored to the shielded state. A coupling device 3 is provided between the upper lid 1 and the upper part (upper plate 211) of the shielding mask 2, whereby the upper lid 1 is coupled to the upper part of the shielding mask 2 by the coupling device 3.

  In this embodiment, the coupling device 3 includes two localization holes 11 installed in the upper lid 1 and two localization projections 22 installed on the upper part of the shielding mask 2, and the two localization holes 11 are The two localization protrusions 22 are provided on opposite sides of the upper lid 1 and the two localization protrusions 22 are provided on opposite sides of the upper plate 211 of the shielding mask 2, and the two localization protrusions 22 and the two localization holes 11 correspond to each other. The two localization protrusions 22 and the two localization holes 11 are engaged with each other, whereby the upper lid 1 is accurately localized on the upper part of the shielding mask 2. The number of the localization holes 11 and the localization projections 22 is not limited, and the positions where the localization holes 11 and the localization projections 22 are installed above the upper lid 1 and the shielding mask 2 are unlimited. Depending on the situation, it can be changed appropriately.

  Moreover, you may replace | exchange the installation position of the stereotaxic hole 11 and the stereotaxic protrusion 22, ie, the stereotactic hole 11 is installed in the upper part of the said shielding mask 2, and the said stereotaxic protrusion 22 is set on the upper cover 1 ( (Not shown in the figure). Further, a viscose layer 23 having a frame shape is provided between the bottom of the upper lid 1 and the upper portion of the shielding mask 2, and the upper lid 1 and the shielding mask 2 are adhered and stably adhered by the viscose layer 23. The upper cover structure of the electromagnetic interference prevention shielding mask of the present invention is constituted by the above structure.

  5 and 6, in this embodiment, the coupling device 3 includes a plurality of engaging hooks 24 installed on the upper part of the shielding mask 2, and the engaging hooks 24 are configured as a shielding mask. 2 is provided near the opening 215, and the engagement hook 24 is formed by pressing the upper plate 211 of the shielding mask 2, and the engagement hook 24 extends upward in an inclined manner. And the engagement hook 24 extends obliquely toward the opening 215 of the upper plate 211, and the engagement hook 24 is engaged with the four periphery of the upper lid 1. The upper lid 1 and the shielding mask 2 are stably coupled by the engagement hook 24. The number and positions of the engagement hooks 24 can be appropriately changed according to practical use without limitation.

  As shown in FIG. 7, in this embodiment, the coupling device 3 includes a plurality of engagement portions 12 installed on the upper lid 1 and a plurality of engagement holes 25 installed on the upper portion of the shielding mask 2. The engaging portions 12 are formed at the four corners of the upper lid 1 by a pressing method, and the engaging holes 25 are formed at the four corners of the upper plate 211 of the shielding mask 2 by a pulling method. The engagement portion 12 and the engagement hole 25 correspond to each other, and the engagement portion 12 and the engagement hole 25 are engaged with each other, whereby the upper lid 1 and the shielding mask 2 are engaged with each other. They are coupled by the engagement between the portion 12 and the engagement hole 25. The number of the engagement portions 12 and the engagement holes 25 installed is not limited, and the positions where the engagement portions 12 and the engagement holes 25 are installed on the upper lid 1 and the shielding mask 2 are not limited. It can be changed appropriately according to practical use. Moreover, you may exchange the installation position of the engaging part 12 and the engaging hole 25, ie, the said engaging part 12 is installed in the upper part of the said shielding mask 2, and the said engaging hole 25 is used for the upper cover 1. Install on top.

  Further, as shown in FIG. 8, in this embodiment, the coupling device 3 includes a plurality of guides 26 installed on the upper part of the shielding mask 2, and the guides 26 are openings of the upper plate 211 of the shielding mask 2. In 215, the guide 26 is formed by pressing the upper plate 211 of the shielding mask 2 at positions on both sides facing each other, and the guide 26 is an L-shaped plate body in the opening 215 of the upper plate 211. , Projecting from opposite sides, and the guide 26 guides the edges on both sides of the upper lid 1, whereby the upper lid 1 smoothly covers the upper part of the shielding mask 2, shields the opening 215, and Two localization protrusions 27 are provided on the upper part of the shielding mask 2, and the two localization protrusions 27 are provided on opposite sides of the upper plate 211 of the shielding mask 2. Both ends, by mortgage on the two localization projecting 27, the upper cover 1 is localized precisely at the top of the shielding mask 2. The number and positions of the guides 26 and the stereotaxic protrusions 27 are not limited and can be appropriately changed according to practical use.

  In the present invention, the shielding state of the shielding mask 2 is restored by the upper lid 1 installed separately, and the upper lid 1 is coupled and fixed to the upper portion of the shielding mask 2 by the coupling device 3. The plate-like design can greatly reduce the cost of the mold, reduce the cost of the material, save the manufacturing time, and effectively improve the output.

  The above is only a better embodiment of the present invention, and the scope of the claim for registration of the utility model of the present invention is not limited thereby, and in accordance with the description, drawings, and contents of the present invention, all equivalent structural changes can be made. Is included in the scope of the utility model registration request of the present invention.

It is a three-dimensional view of the use state of the shielding mask correlated with the present invention. It is a three-dimensional exploded view of the first embodiment of the present invention. It is a solid combination figure of the 1st example of the present invention. It is sectional drawing of the 1st Example of this invention. It is a three-dimensional exploded view of the second embodiment of the present invention. It is sectional drawing of the 2nd Example of this invention. It is sectional drawing of the 3rd Example of this invention. It is a three-dimensional exploded view of the fourth embodiment of the present invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Top cover 11 Stereotaxic hole 12 Engagement part 2 Shielding mask 21 Mask body 211 Upper plate 212 Side plate 213 Storage space 214 Pre-break line 215 Opening 22 Stereotactic projection 23 Viscose layer 24 Engagement hook 25 Engagement hole 26 Guide 27 Stereotaxic projection 3 Coupling apparatus

Claims (11)

  The upper lid is covered with a shielding mask, the upper lid is a plate, and a coupling device is provided between the upper lid and the upper portion of the shielding mask. The upper lid is attached to the shielding mask by the coupling device. An upper cover structure of an electromagnetic interference prevention shielding mask, which is coupled to an upper part.   The upper cover structure according to claim 1, wherein the upper cover is a metal part.   2. The coupling device according to claim 1, wherein a stereotaxic hole installed on a plurality of upper lids and a stereotaxic protrusion installed on the upper part of the shielding mask are contained, and the stereotactic protrusion and the stereotactic hole engage with each other. The upper cover structure of the electromagnetic interference prevention shielding mask as described.   2. The coupling apparatus according to claim 1, further comprising: a stereotaxic projection installed on a plurality of upper lids and a stereotaxic hole installed on an upper portion of the shielding mask, wherein the stereotactic projection and the stereotaxic hole engage with each other. The upper cover structure of the electromagnetic interference prevention shielding mask as described.   The viscose layer is provided between the bottom of the upper lid and the upper part of the shielding mask, and is adhered by the viscose layer between the upper lid and the shielding mask. Top cover structure of electromagnetic interference prevention shielding mask.   2. The electromagnetic interference prevention according to claim 1, wherein the coupling device includes an engagement hook installed on top of a plurality of shielding masks, and the engagement hook is engaged with a peripheral edge of the upper lid. Top cover structure of shielding mask.   7. The upper cover structure of an electromagnetic interference prevention shielding mask according to claim 6, wherein the engagement hook extends upward in an inclined shape and protrudes from an upper part of the shielding mask.   The coupling device includes an engagement portion installed on a plurality of upper lids and an engagement hole installed on top of the plurality of shielding masks, and the engagement portion and the engagement hole engage with each other. The upper cover structure of the electromagnetic interference prevention shielding mask according to claim 1, wherein   The coupling device includes engagement holes installed in a plurality of upper lids and engagement portions installed on top of the plurality of shielding masks, and the engagement units and the engagement holes engage with each other. The upper lid structure of the electromagnetic interference prevention shielding mask according to claim 1, wherein   The coupling device includes guides installed on top of a plurality of shielding masks for guiding the edges on both sides of the upper lid, and at least two stereotactic projections are provided on the upper portion of the shielding mask. 2. An upper cover structure of an electromagnetic interference prevention shielding mask according to claim 1, wherein both ends of the two are in contact with the two stereotactic protrusions.   The shielding mask has a mask body, and the mask body includes an upper plate and side plates extending downward from the four periphery of the upper plate, an opening is formed in the upper portion of the mask body, and the area of the upper lid is 2. The upper lid structure of an electromagnetic interference prevention shielding mask according to claim 1, wherein the opening is shielded by the upper lid, and the mask body is restored to a shielding state.

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