CN203378202U - High-level shielding and heat radiating processing device for electrical products - Google Patents

High-level shielding and heat radiating processing device for electrical products Download PDF

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Publication number
CN203378202U
CN203378202U CN201320453530.2U CN201320453530U CN203378202U CN 203378202 U CN203378202 U CN 203378202U CN 201320453530 U CN201320453530 U CN 201320453530U CN 203378202 U CN203378202 U CN 203378202U
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CN
China
Prior art keywords
housing
circuit board
heat
shielding
treatment device
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.)
Expired - Lifetime
Application number
CN201320453530.2U
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Chinese (zh)
Inventor
宋建琦
赵龙飞
王磊
梁财海
许进亮
李德忠
尚维琦
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Academy of Launch Vehicle Technology CALT
Beijing Institute of Space Launch Technology
Original Assignee
China Academy of Launch Vehicle Technology CALT
Beijing Institute of Space Launch Technology
Priority date (The priority date 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 date listed.)
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Application filed by China Academy of Launch Vehicle Technology CALT, Beijing Institute of Space Launch Technology filed Critical China Academy of Launch Vehicle Technology CALT
Priority to CN201320453530.2U priority Critical patent/CN203378202U/en
Application granted granted Critical
Publication of CN203378202U publication Critical patent/CN203378202U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model relates to a high-level shielding and heat radiating processing device for electrical products, belonging to the technical field of launching vehicle control systems. The device comprises a housing, a circuit board and a base plate from top to bottom, wherein the housing employs a labyrinth type structure with multiple edges, and the circuit board of a single-board structure is installed between the housing and the base plate in a double-layer clamping manner. The device of the utility model can take consideration to both a small-volume large-power high-protection-level structure and electrical design requirements, employs a protection, shielding and heat conduction integrated treatment manner, and realizes high-level protection, excellent electromagnetic shielding and heat radiation effects of a single product.

Description

The high-grade shielding of electric product and radiating treatment device
Technical field
The utility model belongs to car launcher control system technical field, is specifically related to the high-grade shielding of a kind of electric product and radiating treatment device.
Background technology
Domestic military unit product, mainly adopt the design of " box " macrostructure at present, and space and weight tend to restrict the use of product.Be limited by the direct contradiction of closed shield and radiating treatment simultaneously, power device can't be integrated in to unit inside, often need system-level decomposition design, increase unit quantity and cost.Taking into account structure and the Electrical Design Scheme of small size, powerful high-protection level, is problem demanding prompt solution.
The utility model content
The technical problems to be solved in the utility model is: unit product of the prior art is difficult to take into account structure and the electrical design of small size, powerful high-protection level.
The technical solution of the utility model is as described below:
The high-grade shielding of a kind of electric product and radiating treatment device, comprise housing, circuit board and base plate from top to bottom.Described housing adopts multilayer edge maze-type structure, and described circuit board is single plate structure, takes double-layer clamping to be installed between housing and base plate.
As preferred version,
Described housing is provided with waterproof vent valve, and adopts double-faced flexible contact heat conductive design, and enclosure interior is provided with the two steps type structure, outside is provided with leaf structure.
Described circuit board bottom design has difunctional lifting apparatus; The printed board edge distributed arrangement of thermal power device; Interface circuit adopts three terminal capacitor, LC filtering mode to process, and communication interface circuit adopts the photoelectricity isolation processing.Preferably be provided with flexible heat conductive pad and elastic heat conducting pad between the heater element of housing and circuit board.
Described base plate and housing adopt the pressing connected mode, at the stitching surface place, are provided with the protective materials filling groove, adopt dual face seals conduction anticorrosion material to fill.
Be provided with heat-conducting plate between the heater element of housing and circuit board, flexible heat conductive pad is set between housing and heat-conducting plate, the elastic heat conducting pad is set between heat-conducting plate and circuit board.
The beneficial effects of the utility model are:
The high-grade shielding of electric product of the present utility model and radiating treatment device, meet and take into account small size, powerful high-protection level structure and electrical design requirement, adopt protection, shielding, heat conduction integrated treatment mode, realize the high-grade protection of unit product (IP67 degree of protection), good electromagnetic shielding and radiating effect.
The accompanying drawing explanation
The shell structure schematic diagram that Fig. 1 is the high-grade shielding of electric product of the present utility model and radiating treatment device;
The board structure of circuit schematic diagram that Fig. 2 is the high-grade shielding of electric product of the present utility model and radiating treatment device;
The base arrangement schematic diagram that Fig. 3 is the high-grade shielding of electric product of the present utility model and radiating treatment device;
The profile that Fig. 4 is the high-grade shielding of electric product of the present utility model and radiating treatment device;
The partial enlarged drawing that Fig. 5 is Fig. 4.
The 1-housing, 2-circuit board, 3-base plate, 4-maze-type structure, 5-waterproof vent valve, 6-heat-conducting plate, 7-elastic heat conducting pad, the flexible heat conductive pad of 8-, 9-heater element.
Embodiment
Below in conjunction with drawings and Examples, the high-grade shielding of electric product of the present utility model and radiating treatment device are elaborated.
The high-grade shielding of electric product of the present utility model and radiating treatment device, comprise housing 1, circuit board 2 and base plate 3 from top to bottom.
Described housing 1 adopts multilayer edge maze-type structure 4, realizes the multistage decay of electromagnetic wave; Described housing 1 also is provided with waterproof vent valve 5, balance housing 1 inner and outer air pressure, prevents that condensation and heatproof degree from impacting, and is specially adapted to the military wild environment of temperature rapid take-off and landing, wide altitude change and high salt fog; Described housing 1 surface adopts electric conductive oxidation and workmanship of spraying plastics to process, and has good corrosion resistance; Described housing 1 adopts double-faced flexible contact heat conductive design, the heat that circuit board 2 heater elements 9 are produced is concentrated and is transmitted on housing 1, housing 1 inside, relevant position is provided with the two steps type structure, outside is provided with leaf structure, has enlarged markedly area of dissipation, has guaranteed good radiating effect.
Described circuit board 2, be single plate structure, takes double-layer clamping to be installed between housing 1 and base plate 3.Circuit board 2 bottom design have difunctional lifting apparatus, and stress deformation does not occur when it is contacted with housing 1, and it is also very firmly convenient to install; The printed board edge distributed arrangement of thermal power device, and printed board edge metalized mode, effectively improve the printed board heat conductivity, and test actual measurement printed board average temperature rising is controlled in 7 ℃ compared to casing; Interface circuit adopts the modes such as three terminal capacitor, LC filtering to process, and communication interface circuit adopts the photoelectricity isolation processing, circuit board 2 inside by signal type carry out " " cut apart the reduce disturbance conduction; Circuit board 2 use DJB823 tri-anti-paint surface treatments, have good corrosion resistance.
Described base plate 3 adopts the pressing connected mode with housing 1, at the stitching surface place, is provided with the protective materials filling groove, adopts novel two-sided sealing conduction anticorrosion material to fill, and realizes excellent sealing.
In the present embodiment, be provided with heat-conducting plate 6 between the heater element 9 of housing 1 and circuit board 2, flexible heat conductive pad 8GP1500 is set between housing 1 and heat-conducting plate 6, elastic heat conducting pad 77T274 is set between heat-conducting plate 6 and circuit board 2: the shape adaptability that flexible heat conductive pad 8 is good can be filled up the air gap that element heights is poor caused, thereby the flexible nature of material can absorb stress and impact is avoided device failure; The elasticity that elastic heat conducting pad 77 is good and resistance to pressure are suitable for filling larger gap Reusability, simultaneously can be anti-puncture.Two kinds of Heat Conduction Materials all have good heat conduction and insulation property, greatly improve heat transfer efficiency.
The high-grade shielding of electric product of the present utility model and radiating treatment device, overall mass only has 2.5Kg, and has realized the IP67 degree of protection; Under the experimental condition of 500W power termination internal power consumption 10W, 7 ℃ of circuit board 2 average temperature risings, 7 ℃ of body temperature rises; By ground force surface em compatible 5 (CE102, CS101, CS114, RE102, RS103) and add 4 of tight examinations (CS106, CS115, CS116, anti-transient pulse group).

Claims (5)

1. the high-grade shielding of electric product and radiating treatment device, comprise housing (1), circuit board (2) and base plate (3) from top to bottom, it is characterized in that: described housing (1) adopts multilayer edge maze-type structure (4), described circuit board (2) is single plate structure, takes double-layer clamping to be installed between housing (1) and base plate (3).
2. the high-grade shielding of electric product according to claim 1 and radiating treatment device, it is characterized in that: described housing (1) is provided with waterproof vent valve (5), and adopting double-faced flexible contact heat conductive design, housing (1) inside is provided with the two steps type structure, outside is provided with leaf structure.
3. the high-grade shielding of electric product according to claim 1 and 2 and radiating treatment device, it is characterized in that: described circuit board (2) bottom design has difunctional lifting apparatus; The printed board edge distributed arrangement of thermal power device; Interface circuit adopts three terminal capacitor, LC filtering mode to process, and communication interface circuit adopts the photoelectricity isolation processing.
4. the high-grade shielding of electric product according to claim 1 and 2 and radiating treatment device, it is characterized in that: described base plate (3) adopts the pressing connected mode with housing (1), be provided with the protective materials filling groove at the stitching surface place, adopt dual face seals conduction anticorrosion material to fill.
5. the high-grade shielding of electric product according to claim 3 and radiating treatment device, it is characterized in that: between the heater element (9) of housing (1) and circuit board (2), be provided with heat-conducting plate (6), between housing (1) and heat-conducting plate (6), flexible heat conductive pad (8) is set, between heat-conducting plate (6) and circuit board (2), elastic heat conducting pad (7) is set.
CN201320453530.2U 2013-07-26 2013-07-26 High-level shielding and heat radiating processing device for electrical products Expired - Lifetime CN203378202U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320453530.2U CN203378202U (en) 2013-07-26 2013-07-26 High-level shielding and heat radiating processing device for electrical products

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320453530.2U CN203378202U (en) 2013-07-26 2013-07-26 High-level shielding and heat radiating processing device for electrical products

Publications (1)

Publication Number Publication Date
CN203378202U true CN203378202U (en) 2014-01-01

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201320453530.2U Expired - Lifetime CN203378202U (en) 2013-07-26 2013-07-26 High-level shielding and heat radiating processing device for electrical products

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106231878A (en) * 2016-08-30 2016-12-14 南京市溧水县电子研究所有限公司 Utilize the heat abstractor of shell direct pressing power component
CN106684404A (en) * 2017-01-05 2017-05-17 北京氢璞创能科技有限公司 Fuel cell controller package design

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106231878A (en) * 2016-08-30 2016-12-14 南京市溧水县电子研究所有限公司 Utilize the heat abstractor of shell direct pressing power component
CN106684404A (en) * 2017-01-05 2017-05-17 北京氢璞创能科技有限公司 Fuel cell controller package design

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Granted publication date: 20140101

CX01 Expiry of patent term