CN220068164U - Electromagnetic shielding device of radiator - Google Patents
Electromagnetic shielding device of radiator Download PDFInfo
- Publication number
- CN220068164U CN220068164U CN202321215196.7U CN202321215196U CN220068164U CN 220068164 U CN220068164 U CN 220068164U CN 202321215196 U CN202321215196 U CN 202321215196U CN 220068164 U CN220068164 U CN 220068164U
- Authority
- CN
- China
- Prior art keywords
- contact assembly
- circuit board
- printed circuit
- metal
- radiator
- 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.)
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Links
- 239000002184 metal Substances 0.000 claims abstract description 55
- 230000000712 assembly Effects 0.000 claims description 4
- 238000000429 assembly Methods 0.000 claims description 4
- 230000017525 heat dissipation Effects 0.000 abstract description 3
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 3
- 230000005489 elastic deformation Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
The utility model discloses an electromagnetic shielding device of a radiator, which comprises a metal radiator, a printed circuit board and more than one contact assembly, wherein the metal radiator is arranged on the printed circuit board; more than one contact assembly is arranged on the surface of the printed circuit board in a closed loop fence shape; the contact assembly is provided with more than one spring contact assembly for supporting; the metal radiator is arranged at the upper end of the printed circuit board; according to the utility model, more than one contact assembly is arranged on the surface of a printed circuit board in a closed loop fence shape, more than one spring contact assembly for supporting is arranged on the contact assembly, a metal radiator is arranged at the upper end of the printed circuit board, the contact assembly is arranged between the metal radiator and the printed circuit board, the spring contact assembly is electrically connected with the metal radiator, and the printed circuit board, a shielding frame and the metal radiator form a Faraday cage structure; the traditional shielding cover is replaced, the thermal resistance is obviously reduced, so that the heat dissipation efficiency of the equipment is improved, the working temperature of the equipment is further reduced, and the service life of the equipment is prolonged.
Description
Technical Field
The utility model relates to the technical field of electronic circuits, in particular to an electromagnetic shielding device of a radiator.
Background
In the design of electronic circuits, the electromagnetic shielding requirement and the heat dissipation requirement are sometimes met at the same time, and a superposition design form of a shielding cover, a shielding cover and a radiator is generally adopted.
Disclosure of Invention
The technical problem to be solved by the utility model is to provide an electromagnetic shielding device of a radiator, so as to solve the technical problem mentioned in the background art.
The electromagnetic shielding device of the radiator is realized by the following technical scheme: comprises a metal radiator, a printed circuit board and more than one contact assembly; more than one contact assembly is arranged on the surface of the printed circuit board in a closed loop fence shape;
the contact assembly is provided with more than one spring contact assembly for supporting; the metal radiator is arranged at the upper end of the printed circuit board; the contact assembly is arranged between the metal radiator and the printed circuit board;
the spring contact assembly is electrically connected with the metal radiator; the printed circuit board and the shielding frame and the metal heat sink form a faraday cage structure.
As a preferred technical scheme, the contact assembly comprises symmetrically arranged bonding pads, and the spring contact assembly comprises a first spring piece and a second spring piece which are respectively arranged on two opposite sides of the bonding pads;
the first elastic sheet and the second elastic sheet are arranged in a staggered manner; a metal plane is arranged on the first elastic sheet or the second elastic sheet; the metal plane is connected with the metal radiator.
As a preferable technical scheme, a chip is arranged on the printed circuit board, the chip is arranged between more than one contact assemblies, and a heat conducting element is arranged on the metal radiator; the chip disposed between the metal heat sink and the shielding frame is electromagnetically shielded.
As a preferable technical scheme, more than one bolt for connecting the printed circuit board is arranged on the metal radiator.
As a preferable technical scheme, more than one contact assembly is arranged on the surface of the printed circuit board in a wavelength row of less than 1/4.
As the preferable technical scheme, one ends of the first elastic sheet and the second elastic sheet are obliquely arranged on the surface of the bonding pad.
The beneficial effects of the utility model are as follows: according to the utility model, more than one contact assembly is arranged on the surface of a printed circuit board in a closed loop fence shape, more than one spring contact assembly for supporting is arranged on the contact assembly, a metal radiator is arranged at the upper end of the printed circuit board, the contact assembly is arranged between the metal radiator and the printed circuit board, the spring contact assembly is electrically connected with the metal radiator, and the printed circuit board, a shielding frame and the metal radiator form a Faraday cage structure;
the utility model replaces the traditional shielding cover, and the thermal resistance is obviously reduced, so that the heat dissipation efficiency of the equipment is improved, the working temperature of the equipment is further reduced, and the service life of the equipment is prolonged.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is an exploded view of an electromagnetic shielding device of a heat sink according to the present utility model;
FIG. 2 is a schematic illustration of a first contact assembly;
FIG. 3 is a schematic diagram II of a contact assembly;
fig. 4 is a schematic view III of a contact assembly;
fig. 5 is a schematic diagram of a fourth contact assembly;
fig. 6 is a schematic diagram five of a contact assembly.
Description of the embodiments
All of the features disclosed in this specification, or all of the steps in a method or process disclosed, may be combined in any combination, except for mutually exclusive features and/or steps.
Any feature disclosed in this specification (including any accompanying claims, abstract and drawings), may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise. That is, each feature is one example only of a generic series of equivalent or similar features, unless expressly stated otherwise.
In the description of the present utility model, it should be understood that the terms "one end," "the other end," "the outer side," "the upper," "the inner side," "the horizontal," "coaxial," "the center," "the end," "the length," "the outer end," and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.
Furthermore, in the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
Terms such as "upper," "lower," and the like used herein to refer to a spatially relative position are used for ease of description to describe one element or feature's relationship to another element or feature as illustrated in the figures. The term spatially relative position may be intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "below" can encompass both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or other orientations) and the spatially relative descriptors used herein interpreted accordingly.
In the present utility model, unless explicitly specified and limited otherwise, the terms "disposed," "coupled," "connected," "plugged," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
As shown in fig. 1-6, an electromagnetic shielding device for a heat sink of the present utility model includes a metal heat sink 1, a printed circuit board 6, and one or more contact assemblies 5; more than one contact assembly 5 is arranged on the surface of the printed circuit board 6 in a closed loop fence shape;
the contact assembly 5 is provided with more than one spring contact assembly for supporting; the metal radiator 1 is arranged at the upper end of the printed circuit board 6; the contact assembly 5 is arranged between the metal heat sink 1 and the printed circuit board 6;
the spring contact assembly is electrically connected with the metal radiator 1; the printed circuit board 6 and the shielding frame and the metal heat sink 1 constitute a faraday cage structure;
the bottom of the metal radiator 1 is completely exposed metal or is windowed with exposed metal at a position overlapped with the contact assembly 5, and the shrapnel contact assembly is electrically connected with the completely exposed metal or the windowed exposed metal at the bottom of the metal radiator 1.
Of course, more than one contact assembly 5 may be disposed on the surface of the metal heat sink 1 in a closed loop fence shape.
In this embodiment, the contact assembly 5 includes symmetrically arranged pads 11, and the spring contact assembly includes a first spring 7 and a second spring 10 respectively mounted on opposite sides of the pads 11; the first elastic sheet 7 and the second elastic sheet 10 are arranged in a staggered manner; the first elastic sheet 7 or the second elastic sheet 10 is provided with a metal plane 8; the metal plane 8 is connected to the metal heat sink 1.
In the embodiment, a chip 4 is mounted on a printed circuit board 6, the chip 4 is arranged between more than one contact assemblies 5, and a heat conducting element 2 is mounted on a metal heat radiator 1; the chip 4 arranged between the metal radiator 1 and the shielding frame is formed with electromagnetic shielding; the heat conducting element 2 uses heat conducting silica gel or silicone grease with small thickness as much as possible;
in the present embodiment, the metal heat sink 1 is provided with more than one bolt 3 for connecting to the printed circuit board 6; the bolts 3 are used to limit the mounting height of the metal heat sink 1 and also to control the amount of structural compression deformation of the metal heat sink 1 and the contact structure 5.
In this embodiment, more than one contact assembly 5 is arranged on the surface of the printed circuit board 6 in a wavelength arrangement of less than 1/4; of course, if the dome contact 1 cannot meet the requirement of less than 1/4 wavelength, a 2-layer fence or a multi-layer fence structure can be arranged.
In this embodiment, one end of the first elastic sheet 7 and one end of the second elastic sheet 10 are obliquely installed on the surface of the bonding pad 11; elastic deformation is provided in the installation process, and through the elastic deformation, the first elastic sheet 7, the second elastic sheet 10 and the metal plane 8 can be electrically connected with the metal radiator 1 more stably, so that a stable shielding effect is ensured. In addition, the elastic deformation can also adapt to the installation requirements of chips 4 with different heights.
The foregoing is merely illustrative of specific embodiments of the present utility model, and the scope of the utility model is not limited thereto, but any changes or substitutions that do not undergo the inventive effort should be construed as falling within the scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the protection scope defined by the claims.
Claims (8)
1. An electromagnetic shielding device for a radiator, which is characterized in that: comprises a metal radiator (1) and a printed circuit board (6) and more than one contact assembly (5); more than one contact assembly (5) is arranged on the surface of the printed circuit board (6) in a closed loop fence shape;
the contact assembly (5) is provided with more than one spring contact assembly for supporting; the metal radiator (1) is arranged at the upper end of the printed circuit board (6); the contact assembly (5) is arranged between the metal radiator (1) and the printed circuit board (6);
the spring contact assembly is electrically connected with the metal radiator (1); the printed circuit board (6) and the shielding frame and the metal heat sink (1) form a faraday cage structure.
2. The electromagnetic shielding device for a heat sink according to claim 1, wherein: the contact assembly (5) comprises symmetrically arranged bonding pads (11), and the spring contact assembly comprises a first spring piece (7) and a second spring piece (10) which are respectively arranged on two opposite sides of the bonding pads (11).
3. The electromagnetic shielding device for a heat sink according to claim 2, wherein: the first elastic sheet (7) and the second elastic sheet (10) are arranged in a staggered manner; a metal plane (8) is arranged on the first elastic sheet (7) or the second elastic sheet (10); the metal plane (8) is connected with the metal radiator (1).
4. The electromagnetic shielding device for a heat sink according to claim 1, wherein: the printed circuit board (6) is provided with a chip (4), the chip (4) is arranged between more than one contact assemblies (5), and the metal radiator (1) is provided with a heat conducting element (2).
5. The electromagnetic shielding device for a heat sink according to claim 4, wherein: a chip (4) disposed between the metal heat sink (1) and the shielding frame is electromagnetically shielded.
6. The electromagnetic shielding device for a heat sink according to claim 1, wherein: more than one bolt (3) connected with the printed circuit board (6) is arranged on the metal radiator (1).
7. The electromagnetic shielding device for a heat sink according to claim 1, wherein: more than one contact assembly (5) is arranged on the surface of the printed circuit board (6) in a wavelength arrangement of less than 1/4.
8. The electromagnetic shielding device for a heat sink according to claim 2, wherein: one end of the first elastic sheet (7) and one end of the second elastic sheet (10) are obliquely arranged on the surface of the bonding pad (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321215196.7U CN220068164U (en) | 2023-05-19 | 2023-05-19 | Electromagnetic shielding device of radiator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321215196.7U CN220068164U (en) | 2023-05-19 | 2023-05-19 | Electromagnetic shielding device of radiator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220068164U true CN220068164U (en) | 2023-11-21 |
Family
ID=88766399
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321215196.7U Active CN220068164U (en) | 2023-05-19 | 2023-05-19 | Electromagnetic shielding device of radiator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220068164U (en) |
-
2023
- 2023-05-19 CN CN202321215196.7U patent/CN220068164U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |