CN113884780A - Electromagnetic heat dissipation detection cover capable of reducing environmental interference - Google Patents
Electromagnetic heat dissipation detection cover capable of reducing environmental interference Download PDFInfo
- Publication number
- CN113884780A CN113884780A CN202110690468.8A CN202110690468A CN113884780A CN 113884780 A CN113884780 A CN 113884780A CN 202110690468 A CN202110690468 A CN 202110690468A CN 113884780 A CN113884780 A CN 113884780A
- Authority
- CN
- China
- Prior art keywords
- heat dissipation
- environmental interference
- shell
- casing
- electromagnetic
- 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.)
- Withdrawn
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/001—Measuring interference from external sources to, or emission from, the device under test, e.g. EMC, EMI, EMP or ESD testing
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/18—Screening arrangements against electric or magnetic fields, e.g. against earth's field
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The invention discloses an electromagnetic heat dissipation detection cover capable of reducing environmental interference, and the electromagnetic heat dissipation detection cover further comprises a fixing piece, wherein the fixing piece comprises a limiting plate, an elastic part, a guide rod and a pressing plate pressed on a shell, two ends of the guide rod penetrate through the pressing plate and are in sliding connection with the pressing plate, one end of the guide rod is fixedly provided with the limiting plate, and the elastic part is arranged on the guide rod between the pressing plate and the limiting plate; the electromagnetic heat dissipation detection cover with low environmental interference has partial restraining effect on an electric field, a magnetic field and a high-frequency electromagnetic field, has good heat dissipation effect, and does not introduce new electromagnetic interference.
Description
Technical Field
The invention relates to the technical field of electromagnetic scattering protection, in particular to an electromagnetic heat dissipation detection cover for reducing environmental interference.
Background
Electronic components usually contain one of analog circuit, high frequency circuit, digital circuit, can produce electromagnetic interference each other when a plurality of electronic components work together, influence electronic components's function, and prior art adopts additional electromagnetic shield cover to reduce electromagnetic interference's influence, but current electromagnetic shield cover radiating effect is poor, leads to electronic components temperature to climb easily, influences the performance and even damages.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, provides the electromagnetic heat dissipation detection cover for reducing the environmental interference, has a partial restraining effect on an electric field, a magnetic field and a high-frequency electromagnetic field, has a good heat dissipation effect, does not introduce new electromagnetic interference, and can effectively solve the problems in the background art.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a reduce environmental interference's electromagnetism heat dissipation and detect cover, is including being equipped with the open-ended casing, be equipped with confined cavity in the casing, the cavity intussuseption is filled with the magnetic fluid, install tortuous heat pipe in the cavity, the both ends of heat pipe all run through and extend to the outside of casing, the one end of heat pipe and the air outlet of fan are connected.
The fixing piece comprises a limiting plate, an elastic part, a guide rod and a pressing plate pressed on the shell, two ends of the guide rod penetrate through the pressing plate and are in sliding connection with the pressing plate, a limiting plate is fixed at one end of the guide rod, and the elastic part is mounted on the guide rod between the pressing plate and the limiting plate.
As a preferable technical scheme of the present invention, a winding spring is installed inside the housing, and a fan blade is installed on an output shaft of the winding spring.
As a preferred technical scheme of the invention, the cavity of the shell is fixedly provided with heat-conducting insulating silica gel at a position close to the inner cavity of the shell, and the heat-conducting insulating silica gel is fixedly connected with the heat-conducting pipe.
In a preferred embodiment of the present invention, the housing is made of aluminum, copper, stainless steel, or the like.
In a preferred embodiment of the present invention, the housing extends outward to form an annular plate near the opening.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the electromagnetic heat dissipation detection cover for reducing environmental interference, the fan is electrified to enable external air to flow through the heat conduction pipe, heat generated by electronic components in the shell is transferred to the heat conduction pipe through the inner layer of the shell and the magnetic fluid, and the air flowing in the heat conduction pipe takes away the heat on the heat conduction pipe, so that heat dissipation in the shell is achieved.
2. According to the electromagnetic heat dissipation detection cover for reducing environmental interference, disclosed by the invention, one end of the guide rod, which is far away from the limiting plate, is arranged on the circuit board, and after the shell is placed on the circuit board, the pressing plate is pressed on the shell to enable the shell to be fixed or detached conveniently, so that electronic elements in the shell can be adjusted or replaced and overhauled conveniently.
3. According to the electromagnetic heat dissipation detection cover capable of reducing the environmental interference, when an electromagnetic shielding experiment is conducted on electronic components in the shell, the spring is wound to be powerful and then placed in the shell, then the shell is placed and fixed on a circuit board, the spring is wound to drive the fan blades to rotate, the fan blades are rotated to enable air in the shell to flow, the heat dissipation effect of the electronic components in the shell is enhanced, and a new electromagnetic interference source is not introduced.
Drawings
FIG. 1 is a schematic view, partly in section, of a perspective of the present invention;
fig. 2 is a schematic structural diagram of another view angle of the present invention.
In the figure: 1 fan, 2 clamp plates, 3 heat pipes, 4 heat-conducting insulating silica gels, 5 shells, 6 limiting plates, 7 elastic parts, 8 cavities, 9 guide rods, 10 winding springs and 11 fan blades.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer and clearer, the present invention is further described below with reference to the accompanying drawings and examples.
The first embodiment is as follows: referring to fig. 1-2, the present embodiment discloses an electromagnetic heat dissipation detection cover for reducing environmental interference, which includes a casing 5 having an opening, the casing 5 is divided into an inner layer and an outer layer, a closed cavity 8 is formed between the inner layer and the outer layer, a magnetic fluid is filled in the cavity 8, a heat pipe 3 is installed in the cavity 8 and is arranged in a zigzag manner to increase heat exchange efficiency, two ends of the heat pipe 3 penetrate through and extend to the outer side of the casing 5, and one end of the heat pipe 3 is connected to an air outlet of a fan 1.
Further, the case 5 is made of aluminum, copper, stainless steel, or the like.
Further, the position of the housing 5 near the opening is extended outward to form an annular plate, and the annular plate facilitates the fixing of the housing 5 on the circuit board.
The input end of the fan 1 is electrically connected with the output end of the external control switch.
The fan 1 used in the present invention is a common electronic component in the prior art, and the working method and the circuit structure thereof are well known technologies and are not described herein.
The working process and principle of the embodiment are as follows:
the housing 5 is mounted on a circuit board and the electronic component to be tested or shielded is located in the housing 5 and the housing 5 contacts the ground, the housing 5 and ground forming an electrostatic shield to terminate the electric field on the metal surface of the shield and transfer the charge to ground.
The magnetic fluid in the cavity 8 confines the magnetic lines of force of the electronic components in the housing 5 to the housing 5.
The inner layer and the outer layer of the shell 5 and the magnetic fluid can suppress partial influence of a high-frequency electromagnetic field, so that an interference field forms a vortex on the shell 5 and generates reflection on an interface between the shell 5 and a protected space, the field intensity value of the interference field in the protected space is greatly weakened, the shielding effect is achieved, meanwhile, the outer layer of the shell 5 is made of a material with high conductivity to increase the reflection effect, and the magnetic fluid in the cavity 8 is made of a material with high conductivity to increase the vortex effect and improve the shielding effect of the high-frequency electromagnetic field.
The fan 1 is electrified to enable outside air to flow through the heat conduction pipe 3, heat generated by electronic elements in the shell 5 is transferred to the heat conduction pipe 3 through the inner layer of the shell 5 and the magnetic fluid, and the heat on the heat conduction pipe 3 is taken away by the air flowing in the heat conduction pipe 3, so that heat dissipation in the shell 5 is realized.
Example two: as shown in fig. 1-2, the present embodiment discloses an electromagnetic heat dissipation detection cover for reducing environmental interference, the structure of which is substantially the same as that of the first embodiment, and the difference is that the present embodiment further includes a fixing member, the fixing member includes a limiting plate 6, an elastic member 7, a guide rod 9 and a pressing plate 2 pressed on the housing 5, both ends of the guide rod 9 penetrate through the pressing plate 2 and are slidably connected with the pressing plate 2, the limiting plate 6 is fixed at one end of the guide rod 9, and the elastic member 7 is installed on the guide rod 9 between the pressing plate 2 and the limiting plate 6.
The working process and principle of the embodiment are as follows:
one end of the guide rod 9, which is far away from the limiting plate 6, is arranged on the circuit board, after the shell 5 is placed on the circuit board, the pressing plate 2 is pressed on the shell 5, so that the shell 5 is fixed or is convenient to disassemble, and the electronic element in the shell 5 is convenient to adjust or replace and overhaul.
Example three: as shown in fig. 1-2, the present embodiment discloses an electromagnetic heat dissipation detection cover for reducing environmental interference, which has a structure substantially the same as that of the first embodiment, except that a winding spring 10 is mounted inside a housing 5 of the present embodiment, and a blade 11 is mounted on an output shaft of the winding spring 10.
The winding spring 10 is a common power storage device in the prior art, and comprises a spiral spring, a reduction transmission device, a shell and the like, and is commonly used in devices such as clocks, toys, mechanical music boxes and the like; the number of turns of the output shaft of the wound spring 10 is affected by the number of turns of the spiral spring, the transmission ratio of the speed transmission device, and the like.
When carrying out electromagnetic shielding experiments on electronic components in the shell 5, the winding spring 10 is wound and placed into the shell 5, then the shell 5 is placed and fixed on a circuit board, the winding spring 10 is wound to drive the fan blades 11 to rotate, the fan blades 11 are rotated to enable air in the shell 5 to flow, the heat dissipation effect of the electronic components in the shell 5 is enhanced, and no new electromagnetic interference source is introduced.
The cycle time for releasing power by winding spring 10 is measured, and when it is judged from the time that the power released by winding spring 10 is nearly complete or complete, the experiment is suspended to open case 5 to re-wind winding spring 10.
Example four: as shown in fig. 1-2, the present embodiment discloses an electromagnetic heat dissipation detection cover for reducing environmental interference, which has a structure substantially the same as that of the first embodiment, except that a heat-conducting insulating silica gel 4 is fixed in a position of a cavity 8 of a housing 5 of the present embodiment, the heat-conducting insulating silica gel 4 is fixedly connected to a heat-conducting pipe 3; the heat conductive insulating silicone 4 enhances the heat conductive efficiency between the inside of the housing 5 and the heat conductive pipe 3.
The parts which are not disclosed in the invention are all the prior art, and the specific structure, the materials and the working principle are not detailed; the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, the embodiments of the present invention are not limited by the above embodiments, and any other changes, modifications, substitutions, combinations, simplifications, which do not depart from the principle of the present invention, should be equivalent substitutions for those of ordinary skill in the art, which should be covered by the scope of the claims and the specification of the present invention.
Claims (6)
1. The utility model provides a reduce environmental interference's electromagnetism heat dissipation and detect cover which characterized in that: including being equipped with open-ended casing (5), be equipped with confined cavity (8) in casing (5), cavity (8) intussuseption is filled with the magnetic fluid, install tortuous heat pipe (3) in cavity (8), the both ends of heat pipe (3) all run through and extend to the outside of casing (5), the one end of heat pipe (3) and the air outlet of fan (1) are connected.
2. The reduced environmental interference electromagnetic heat dissipation test shield of claim 1, wherein: still include the mounting, the mounting includes limiting plate (6), elastic component (7), guide arm (9) and presses clamp plate (2) on casing (5), guide arm (9) both ends all run through clamp plate (2) and with clamp plate (2) sliding connection, the one end of guide arm (9) is fixed with limiting plate (6), install elastic component (7) on guide arm (9) between clamp plate (2) and limiting plate (6).
3. The reduced environmental interference electromagnetic heat dissipation test shield of claim 1, wherein: a winding spring (10) is mounted on the inner side of the shell (5), and fan blades (11) are mounted on an output shaft of the winding spring (10).
4. The reduced environmental interference electromagnetic heat dissipation test shield of claim 3, wherein: cavity (8) of casing (5) are close to the rigidity of its inner chamber and are equipped with heat conduction insulating silica gel (4), heat conduction insulating silica gel (4) and heat pipe (3) fixed connection.
5. The reduced environmental interference electromagnetic heat dissipation test shield of claim 1, wherein: the shell (5) is made of materials such as aluminum, copper and stainless steel.
6. The reduced environmental interference electromagnetic heat dissipation test shield of claim 1, wherein: the position of the shell (5) close to the opening extends outwards to form an annular plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110690468.8A CN113884780A (en) | 2021-06-22 | 2021-06-22 | Electromagnetic heat dissipation detection cover capable of reducing environmental interference |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110690468.8A CN113884780A (en) | 2021-06-22 | 2021-06-22 | Electromagnetic heat dissipation detection cover capable of reducing environmental interference |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113884780A true CN113884780A (en) | 2022-01-04 |
Family
ID=79010351
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110690468.8A Withdrawn CN113884780A (en) | 2021-06-22 | 2021-06-22 | Electromagnetic heat dissipation detection cover capable of reducing environmental interference |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113884780A (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004363184A (en) * | 2003-06-02 | 2004-12-24 | Grand Power Sources Inc | Method of forming heat sink and its structure |
| CN101056526A (en) * | 2006-04-14 | 2007-10-17 | 鸿富锦精密工业（深圳）有限公司 | Heat radiator |
| US20130235528A1 (en) * | 2012-03-09 | 2013-09-12 | Askey Computer Corp. | Assembled electromagnetic shielding case |
| CN207054000U (en) * | 2016-12-05 | 2018-02-27 | 上海阿莱德实业股份有限公司 | The pouring-in electromagnetic signal shielding harness of liquid metal |
| CN109413935A (en) * | 2018-09-26 | 2019-03-01 | 天长市天毅电子科技有限公司 | A kind of electric car charger convenient for heat dissipation |
| CN210381497U (en) * | 2019-07-15 | 2020-04-21 | 信丰骏达电子科技有限公司 | Positioning device for processing circuit board |
| CN211047466U (en) * | 2019-12-04 | 2020-07-17 | 谷谢天 | Electronic components packaging shell |
| CN211792589U (en) * | 2019-12-10 | 2020-10-27 | 深圳市丰讯电路有限公司 | High-density multilayer circuit board |
| CN111953143A (en) * | 2020-08-11 | 2020-11-17 | 天津海天方圆节能技术有限公司 | Anti-interference structure for permanent magnet synchronous motor |
| CN212629088U (en) * | 2020-08-12 | 2021-02-26 | 苏州市豪胜五金有限公司 | Electromagnetic shielding cover |
| CN212970613U (en) * | 2020-10-16 | 2021-04-13 | 郑州铁路职业技术学院 | Electric power cabinet that heat dispersion is good |
-
2021
- 2021-06-22 CN CN202110690468.8A patent/CN113884780A/en not_active Withdrawn
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004363184A (en) * | 2003-06-02 | 2004-12-24 | Grand Power Sources Inc | Method of forming heat sink and its structure |
| CN101056526A (en) * | 2006-04-14 | 2007-10-17 | 鸿富锦精密工业（深圳）有限公司 | Heat radiator |
| US20130235528A1 (en) * | 2012-03-09 | 2013-09-12 | Askey Computer Corp. | Assembled electromagnetic shielding case |
| CN207054000U (en) * | 2016-12-05 | 2018-02-27 | 上海阿莱德实业股份有限公司 | The pouring-in electromagnetic signal shielding harness of liquid metal |
| CN109413935A (en) * | 2018-09-26 | 2019-03-01 | 天长市天毅电子科技有限公司 | A kind of electric car charger convenient for heat dissipation |
| CN210381497U (en) * | 2019-07-15 | 2020-04-21 | 信丰骏达电子科技有限公司 | Positioning device for processing circuit board |
| CN211047466U (en) * | 2019-12-04 | 2020-07-17 | 谷谢天 | Electronic components packaging shell |
| CN211792589U (en) * | 2019-12-10 | 2020-10-27 | 深圳市丰讯电路有限公司 | High-density multilayer circuit board |
| CN111953143A (en) * | 2020-08-11 | 2020-11-17 | 天津海天方圆节能技术有限公司 | Anti-interference structure for permanent magnet synchronous motor |
| CN212629088U (en) * | 2020-08-12 | 2021-02-26 | 苏州市豪胜五金有限公司 | Electromagnetic shielding cover |
| CN212970613U (en) * | 2020-10-16 | 2021-04-13 | 郑州铁路职业技术学院 | Electric power cabinet that heat dispersion is good |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101064454B (en) | Motor having heat-dissipating structure for circuit component and fan unit including the motor | |
| CN206341544U (en) | A kind of shielding heat radiating device | |
| CN113884780A (en) | Electromagnetic heat dissipation detection cover capable of reducing environmental interference | |
| CN218301681U (en) | Electromagnetic heating rod | |
| JP2008047839A (en) | Device for reducing disturbance electromagnetic wave | |
| CN210444692U (en) | Shielding shell for encoder | |
| CN209435687U (en) | A kind of filter | |
| CN208028455U (en) | A kind of self-adapting intelligent power channel case with self-protection function | |
| CN210050864U (en) | Electromagnetic heating stove capable of shielding magnetic field radiation | |
| CN208738303U (en) | A kind of improved LED encapsulation structure | |
| CN220208727U (en) | Electromagnetic coil with socket | |
| CN109725063A (en) | Ultrasonic probe | |
| CN213521963U (en) | High-precision anti-interference circuit board for mobile phone | |
| CN220342706U (en) | Millimeter wave signal generating device | |
| CN208142985U (en) | A kind of heat radiating type motor being easily installed radiating aluminium sheet | |
| CN215578072U (en) | Heat dissipation device for power electronic transformer | |
| CN218214922U (en) | Transformer device with overheating active cooling function | |
| CN215493769U (en) | Electric power system electric quantity tester | |
| CN216122436U (en) | Intelligence bracelet bluetooth test structure | |
| CN201985669U (en) | Efficient heat-dissipating fan motor | |
| CN212851657U (en) | Spherical circuit board | |
| CN215412010U (en) | Induction cooker and one-to-four modular heating device thereof | |
| CN213517266U (en) | Ammeter with heat radiation structure | |
| CN208996808U (en) | A kind of heat radiating type engine housing | |
| CN204117819U (en) | Ignition coil shell fin |
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 | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20220104 |