CN110719726A - Shielding case - Google Patents
Shielding case Download PDFInfo
- Publication number
- CN110719726A CN110719726A CN201910968151.9A CN201910968151A CN110719726A CN 110719726 A CN110719726 A CN 110719726A CN 201910968151 A CN201910968151 A CN 201910968151A CN 110719726 A CN110719726 A CN 110719726A
- Authority
- CN
- China
- Prior art keywords
- strip
- heat dissipation
- shielding case
- top surface
- shaped
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K9/00—Screening of apparatus or components against electric or magnetic fields
- H05K9/0007—Casings
- H05K9/002—Casings with localised screening
- H05K9/0022—Casings with localised screening of components mounted on printed circuit boards [PCB]
- H05K9/0024—Shield cases mounted on a PCB, e.g. cans or caps or conformal shields
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2039—Modifications to facilitate cooling, ventilating, or heating characterised by the heat transfer by conduction from the heat generating element to a dissipating body
- H05K7/20409—Outer radiating structures on heat dissipating housings, e.g. fins integrated with the housing
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
The invention provides a shielding case which comprises a shielding case body, wherein the shielding case body is of a cuboid structure with an opening at the bottom surface and comprises four side surfaces and a top surface; the heat dissipation structure is characterized in that a plurality of heat dissipation fins and a plurality of strip-shaped heat dissipation holes are arranged on the top surface, every two heat dissipation fins are provided with one strip-shaped heat dissipation hole, a protruding edge is arranged in each strip-shaped heat dissipation hole along the axis direction of the corresponding hole, each protruding edge is in a long-strip-shaped uniform distribution mode, an insulating layer covers the inner side of the top surface, and a plurality of welding feet are arranged at the lower end of each side face. The invention has simple structure, and can effectively dissipate the heat generated during the operation of the circuit and prolong the service life of the circuit through the radiating fins and the strip-shaped radiating holes arranged on the radiating fins. And secondly, the insulating layer is arranged on the inner side of the shielding case, so that the direct contact between the circuit electronic element and the metal base body of the shielding case can be avoided, the short circuit is prevented, and the practicability is realized.
Description
Technical Field
The invention relates to the technical field of shielding cases, in particular to a shielding case.
Background
Shielding is one means in electrical engineering. In order to prevent interference of external electric, magnetic or electromagnetic fields with the internal devices or to avoid influence of the electromagnetic fields of the devices on the outside, the devices are placed in a closed or nearly closed metal shell or mesh enclosure, which is referred to as a shield. In structural chemistry, the term masking is used to name the following effects. The repulsion of inner electrons to outer electrons in atoms reduces the effective attraction of the atoms to the outer electrons, which is equivalent to the 'shielding' of the inner electrons by a part of nuclear charges, so the shielding effect is called. The shielding case is composed of a support and a cover body, is mainly applied to the fields of mobile phones, GPS and the like, and has the functions of preventing electromagnetic interference (EMI) and shielding elements and LCM on a PCB.
The electronic components of the circuit may contact with the shielding case during the operation, if the electronic components of the circuit directly contact with the metal substrate of the shielding case, the electronic components of the circuit may generate a short circuit risk, which may cause interference signals to the circuit and even damage the circuit.
Therefore, it is necessary to design a shielding case to solve the above problems.
Disclosure of Invention
To overcome the above-mentioned deficiencies in the prior art, the present invention aims to provide a shielding cover.
In order to achieve the above objects and other related objects, the present invention provides the following technical solutions: a shielding cage, characterized by: comprises a shielding cover body;
the shielding cover body is of a cuboid structure with an opening at the bottom surface and comprises four side surfaces and a top surface;
a plurality of radiating fins and a plurality of strip-shaped radiating holes are arranged on the top surface, and one strip-shaped radiating hole is arranged between every two radiating fins;
the strip-shaped heat dissipation holes are internally provided with convex ridges along the axis direction of the holes, and the convex ridges are uniformly distributed in the strip-shaped heat dissipation holes in a long strip shape;
the inner side of the top surface is covered with an insulating layer;
and a plurality of welding feet are arranged at the lower end of the side surface.
The preferable technical scheme is as follows: the heat radiating fins are made of copper.
The preferable technical scheme is as follows: the radiating fins are arranged in a strip shape.
The preferable technical scheme is as follows: the insulating layer is made of insulating thermal conductive plastic TCPA3025A and is adhered to the inner side of the top surface through an adhesive.
The preferable technical scheme is as follows: and openings which correspond to the strip-shaped heat dissipation holes in position and are consistent in shape are formed in the insulating layer.
Due to the application of the technical scheme, the invention has the beneficial effects that:
the invention has simple structure, and can effectively dissipate the heat generated during the operation of the circuit and prolong the service life of the circuit through the radiating fins and the strip-shaped radiating holes arranged on the radiating fins. And secondly, the insulating layer is arranged on the inner side of the shielding case, so that the direct contact between a circuit electronic element and a metal base body of the shielding case can be avoided, the short circuit is prevented, interference signals are caused to the circuit, and even the circuit is damaged.
Drawings
FIG. 1 is a schematic view of the structure of the present invention.
FIG. 2 is a top view of the present invention.
In the above drawings, 1, a shielding cover body; 2. a side surface; 3. a top surface; 4. strip-shaped heat dissipation holes; 5. a heat dissipating fin; 6. welding feet; 7. an insulating layer; 8. and (4) convex edges.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.
Please refer to fig. 1-2. It should be understood that in the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship which the product of the present invention is usually placed in when used, which is only for the convenience of describing the present invention and simplifying the description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance. The terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should be further noted that, unless otherwise specifically stated or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may include, for example, a fixed connection, a detachable connection, an integral connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection via an intermediate medium, and a communication between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1-2, a shielding case comprises a shielding case body 1, wherein the shielding case body 1 is a cuboid structure with an open bottom surface, and comprises four side surfaces 2 and a top surface 3, a plurality of strip-shaped heat dissipation holes 4 and heat dissipation fins 5 are arranged on the top surface 3, the heat dissipation fins 5 are arranged in a strip shape, and a strip-shaped heat dissipation hole 4 is arranged between every two heat dissipation holes, and the strip-shaped heat dissipation holes 4 and the heat dissipation fins 5 are used for heat dissipation, so that the service life of an electronic component in the shielding case is prolonged, and the operation stability of the electronic component. And a welding leg 6 is arranged at the lower end of the side face 2 and is used for welding with a PCB. An insulating layer 7 is covered on the inner side of the top surface 3 (the short circuit caused by the contact of the shielding case base body and the electronic element is avoided), and openings which correspond to the strip-shaped heat dissipation holes 4 in position and are consistent in shape are arranged on the insulating layer 7, so that the heat dissipation is convenient.
Further, be equipped with protruding stupefied 8 along the axis direction in hole in the bar louvre 4, protruding stupefied 8 is rectangular shape evenly distributed in bar louvre 4, and protruding stupefied 8 can increase the heat radiating area of bar louvre 4, and the heat dissipation accelerates, and protruding stupefied 8 can play the effect of strengthening rib and strengthen the bulk strength of the shield cover body 1 simultaneously.
Further, the heat radiation fins 5 are made of copper, and heat radiation performance is good.
Further, the insulating layer 7 is made of insulating thermal conductive plastic TCPA3025A (insulating and facilitating heat dissipation), and is adhered to the inner side of the top surface 3 by an adhesive.
Therefore, the invention has the following advantages:
the invention has simple structure, improves the heat dissipation capability of the shielding case, prolongs the service life of electronic elements in the shielding case and improves the stability of circuit operation through the heat dissipation fins and the strip-shaped heat dissipation holes. In addition, the insulating layer on the inner side of the shielding case can prevent the electronic elements in the shielding case from being in direct contact with the shielding case base body, short circuit is avoided, the stability of circuit operation is further improved, and the insulating layer is made of an insulating material with good heat conducting performance, so that insulation is guaranteed, and heat dissipation performance is also considered.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (5)
1. A shielding cage, characterized by: comprises a shielding cover body;
the shielding cover body is of a cuboid structure with an opening at the bottom surface and comprises four side surfaces and a top surface;
a plurality of radiating fins and a plurality of strip-shaped radiating holes are arranged on the top surface, and one strip-shaped radiating hole is arranged between every two radiating fins;
the strip-shaped heat dissipation holes are internally provided with convex ridges along the axis direction of the holes, and the convex ridges are uniformly distributed in the strip-shaped heat dissipation holes in a long strip shape;
the inner side of the top surface is covered with an insulating layer;
and a plurality of welding feet are arranged at the lower end of the side surface.
2. A shielding cage according to claim 1, wherein: the heat radiating fins are made of copper.
3. A shielding cage according to claim 1, wherein: the radiating fins are arranged in a strip shape.
4. A shielding cage according to claim 1, wherein: the insulating layer is made of insulating thermal conductive plastic TCPA3025A and is adhered to the inner side of the top surface through an adhesive.
5. A shielding cage according to claim 1, wherein: and openings which correspond to the strip-shaped heat dissipation holes in position and are consistent in shape are formed in the insulating layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910968151.9A CN110719726A (en) | 2019-10-12 | 2019-10-12 | Shielding case |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910968151.9A CN110719726A (en) | 2019-10-12 | 2019-10-12 | Shielding case |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110719726A true CN110719726A (en) | 2020-01-21 |
Family
ID=69212522
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910968151.9A Pending CN110719726A (en) | 2019-10-12 | 2019-10-12 | Shielding case |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110719726A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111969447A (en) * | 2020-08-07 | 2020-11-20 | 广东电网有限责任公司 | Case and power distribution terminal |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104482356A (en) * | 2014-12-24 | 2015-04-01 | 苏州景联精密机械有限公司 | Heat insulation pad block |
| CN208691676U (en) * | 2018-05-15 | 2019-04-02 | 东莞市国信精密科技有限公司 | The shielding case structure of high reliability |
-
2019
- 2019-10-12 CN CN201910968151.9A patent/CN110719726A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104482356A (en) * | 2014-12-24 | 2015-04-01 | 苏州景联精密机械有限公司 | Heat insulation pad block |
| CN208691676U (en) * | 2018-05-15 | 2019-04-02 | 东莞市国信精密科技有限公司 | The shielding case structure of high reliability |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111969447A (en) * | 2020-08-07 | 2020-11-20 | 广东电网有限责任公司 | Case and power distribution terminal |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200121 |