CN102927194A - Electrical device damping structure - Google Patents
Electrical device damping structure Download PDFInfo
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- CN102927194A CN102927194A CN2012104320743A CN201210432074A CN102927194A CN 102927194 A CN102927194 A CN 102927194A CN 2012104320743 A CN2012104320743 A CN 2012104320743A CN 201210432074 A CN201210432074 A CN 201210432074A CN 102927194 A CN102927194 A CN 102927194A
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- damping
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- vibration damper
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Abstract
The invention discloses an electrical device damping structure. The electrical device comprises a case and an electric component installed in the case. The electrical device is characterized in that the damping structure comprises a transferring bracket and a plurality of dampers, wherein the transferring bracket is used for installing an electron device, a plurality of damper installation holes are arranged on the transferring bracket, each damper comprises a damper bracket and two number one damping mats, the damper brackets and the number one damping mats are sleeves, one ends of the sleeves are provided with flanging, the number one damping mats are inserted into the damper installation holes from the upper and lower sides of the transferring bracket respectively, the damper brackets are inserted into the number one damping mats from bottom to top, and bolts respectively penetrate through the damper brackets from up to bottom to fix the transferring bracket on the case of the electrical device. The internally and externally combined damping structure enables the electrical device to bear a large explosion impact force.
Description
Technical field
The present invention relates to a kind of cushion technique, specifically resist the shock-damping structure of jerk that near-field explosion produces on a kind of electrical equipment that is used in aircraft.
Background technique
Damping device has had widely use on various vehicles and aircraft.Take aircraft as example, the vibration damper that generally adopts on the guided missile at present is the vibration that reduces in the missile flight process.For the missile-borne electronic product, existing electronic equipment is difficult to directly bear the mistake heavy shock loads that near-field explosion impacts.
For example, in the submarine launched cruise missile Launched From Underwater, flexible linear shaped charge can produce huge blast impulse when the protection cylinder separated.Be subject to the restriction of submarine launched cruise missile launching condition, sometimes the electrical equipment of motor must be arranged in the position of directly bearing the flexible linear shaped charge blast impulse.Through the flexible linear shaped charge blast impulse that electrical equipment on the bullet the is carried out test of knowing the real situation, in the situation that do not take any glissando, the interior electronic parts and components of device can't bear the impact force that near-field explosion brings.The impact of flexible linear shaped charge blast impulse when guaranteeing that product can tolerate Underwater Missile when emission protection cylinder and separates, and seem particularly important in the situation that small product size is constant for it designs a kind of vibration damper that can reduce the instantaneous impact that explodes.
Summary of the invention
The purpose of this invention is to provide a kind of electrical equipment shock-damping structure, guarantee that it can tolerate the jerk that near-field explosion brings, in addition can be used in the situation that during the submarine launched cruise missile underwater emission flexible linear shaped charge blast impulse protect electrical equipment.
The present invention proposes a kind of electrical equipment shock-damping structure for this reason, described electrical equipment comprises housing and is installed in the electronic parts and components of enclosure interior, described shock-damping structure comprises that wherein: described switching support is provided with several vibration damper mounting holes for the switching support of mounting electronic device and several vibration dampers; Each vibration damper comprises a shock absorber support and two No. 1 damping mats, and described shock absorber support and No. 1 damping mat are an end with the sleeve of flange; No. 1 damping mat inserts the vibration damper mounting hole from the up and down both sides of switching support respectively, and shock absorber support from bottom to top inserts in No. 1 damping mat, and screw passes respectively shock absorber support from top to bottom switching support is fixed on the housing of electrical equipment.
Compared to existing technology electronic device (common such as relay) is directly installed on the housing of electrical equipment, adopted technique scheme after, can protect well electronic device under the effect of near-field explosion impact force, not to be destroyed.
Further, described electrical equipment can also comprise circuit board assemblies, and described circuit board assemblies comprises two circuit boards and some circuit board damping devices, wherein: all be provided with several mounting holes on the every circuit board; Each circuit board damping device includes open tubular column, flat head screw, nut and No. 2 damping mats, described open tubular column places between two circuit boards, flat head screw is used nut screwing clamping after passing respectively from bottom to up the mounting hole of circuit board and open tubular column, wherein, all be lined with damping mat No. 2 between the two ends of flat head screw and two circuit boards; The center hole that screw passes respectively flat head screw from top to down is fixed on circuit board on the housing of electrical equipment.
By above two kinds of glissandoes, make the electric components of inside electric appliance obtain preferably protection.In addition, also be provided with outer vibration damper, described outer vibration damper is installed in the joint of electrical equipment and guided missile internal weapon bays, comprises two-layered steel plates and the rubber of sulfuration in two-layered steel plates; Described outer vibration damper fits in the housing of electrical equipment, is fixed on together on the guided missile internal weapon bays by the housing of bolt with outer vibration damper and electrical equipment.
Beneficial effect of the present invention is, a kind of new electrical equipment shock-damping structure has at first been proposed, electronic device is installed on the switching support, and then switching support is installed on the housing of electrical equipment by vibration damper, this structure can reduce the impact force of near-field explosion widely.Secondly, the present invention has still carried out the damping protection installation to the circuit board in the electrical equipment, equally also can reduce the impact force of near-field explosion.After electrical equipment has been carried out inner Aseismatic Design, also be provided with outer vibration damper at its housing.The shock-damping structure of inside and outside combination makes electrical equipment can bear larger blast impulse power.
Description of drawings
Fig. 1 is electrical equipment the first embodiment's part schematic diagram;
Fig. 2 is the schematic diagram of switching support among Fig. 1;
Fig. 3 is the assembling schematic diagram of vibration damper and switching support among Fig. 1;
Fig. 4 is the schematic diagram of circuit board assemblies among electrical equipment the second embodiment;
Fig. 5 is the part schematic diagram of circuit board assemblies among electrical equipment the 3rd embodiment;
Fig. 6 is the schematic diagram that the electrical equipment of two kinds of internal damping structures has been installed simultaneously;
Fig. 7 is electrical equipment the 3rd embodiment's assembling schematic diagram.
Embodiment
Below will take the engine electrical equipment on certain model submarine launched cruise missile as example, by reference to the accompanying drawings the present invention be described in detail.Although those skilled in the art will be understood that the present invention is based on this electrical equipment describes, the technological improvement of having done is equally applicable in other occasions and product that need to resist blast impulse power.Therefore, the distortion of having done based on following examples still belongs to scope of the present invention.
In certain model submarine launched cruise missile, the electrical equipment of motor need to be arranged in the position of directly bearing the flexible linear shaped charge blast impulse, in the existing electrical equipment, electronic parts and components are directly installed on the housing, can't satisfy usage requirement.The present invention has carried out multinomial improvement to existing electrical equipment, below describes one by one by a plurality of embodiments.
In first embodiment of the present invention, increased shock-damping structure in the electrical equipment.This shock-damping structure comprises switching support 1 and several vibration dampers 2 for mounting electronic device (the present embodiment is relay), as shown in Figure 1, does not comprise the housing of electrical equipment among the figure.But the shape flexible design of switching support 1, to satisfy the requirement that relay is installed thereon, switching support shape in the present embodiment as shown in Figure 2, switching support 1 is provided with 6 vibration damper mounting holes 11,6 vibration dampers 2 place respectively in the mounting hole 11, and switching support 1 is screwed on the housing of electrical equipment by vibration damper 2.
The assembly relation of switching support 1 and vibration damper 2 as shown in Figure 3.Each vibration damper 2 comprises a shock absorber support 21 and two No. 1 damping mats 22, and shock absorber support 21 and No. 1 damping mat 22 are an end with the sleeve of flange; No. 1 damping mat 22 inserts in the vibration damper mounting hole 11 from the up and down both sides of switching support 1 respectively, and shock absorber support 21 from bottom to top inserts in No. 1 damping mat 22.Should not interspace between No. 1 damping mat 22 and switching support 1 and the shock absorber support 21.Put plain washer 3 in shock absorber support 21 upper ends, compress No. 1 damping mat 22.At last, passing from top to bottom shock absorber support 21 with M3 screw (not shown) just can be fixed on switching support 1 on the housing of electrical equipment.
Should guarantee J220 relay bottom surface and main casing after the assembling at least apart from 6mm, E615 relay bottom surface and main casing be at least apart from 5mm, and the relay bottom can not come in contact with main casing in the time of can guaranteeing that vibration damper is out of shape under impulsive load.
Wherein, No. 1 damping mat adopts ZN-37 damping sizing material to make, and its compressibility is about 5.6%, satisfies the usage requirement (compressibility is less than 10%) of vibration damper.ZN-37 damping sizing material performance index are as shown in table 1:
Table 1 ZN-37 damping sizing material performance index
In second embodiment of the present invention, electrical equipment also comprises circuit board assemblies shown in Figure 4 except adopting switching support and vibration damper.
As shown in Figure 4, circuit board assemblies comprises two circuit boards 4 and 6 circuit board damping devices.Each circuit board damping device comprises open tubular column 5, flat head screw 6, nut 8 and No. 2 damping mats 7.Open tubular column 5 places between two circuit boards 4, and flat head screw 6 passes respectively from bottom to up that mounting hole on the circuit board and open tubular column 5 are rear to be tightened with nut 8.All be lined with damping mat 7 No. 2 between the two ends of flat head screw 6 and two circuit boards 4.The center hole that passes from top to down respectively flat head screw 6 with the screw (not shown) just can be fixed on circuit board on the housing of electrical equipment.
Wherein, No. 2 damping mat is also made by ZN-37 damping sizing material, and its compressibility is about 8.3%, satisfies vibration damper usage requirement (compressibility is less than 10%).
Circuit board in the circuit board assemblies after the assembling and the minimum range of electrical equipment shell are 6mm.
In another embodiment of the present invention, the part of circuit board assemblies as shown in Figure 5, Fig. 5 (a) is the schematic diagram of open tubular column 5, Fig. 5 (b) is the schematic diagram of flat head screw 6; Fig. 5 (c) is the schematic diagram of No. 2 damping mats.As shown in Figure 5, the two ends of open tubular column can be designed as step hole, and an end of No. 2 damping mats can insert in the step hole of open tubular column.
The electrical equipment of above-mentioned two kinds of shock-damping structures has been installed simultaneously as shown in Figure 6.
In the 4th embodiment of the present invention, described electrical equipment also is provided with outer vibration damper, and its structure as shown in Figure 7.
As shown in Figure 7, outer vibration damper 9 is installed in the joint of electrical equipment and guided missile internal weapon bays, and it comprises two-layered steel plates and the rubber of sulfuration in two-layered steel plates.Outer vibration damper 9 fits on the housing 10 of electrical equipment, is fixed on together on the guided missile internal weapon bays by the housing 10 of bolt with outer vibration damper 9 and electrical equipment.Wherein, the rubber of sulfuration in two-layered steel plates is the ZN-41 damping rubber.
Outer vibration damper is the rubber-metal compound vibration-damper, and rigidity is higher, is installed on product shell, is used for filtering the high-frequency percussion of flexible linear shaped charge blast impulse, reduces high frequency blast impulse power to the direct effect of product.Wherein, outer layer plate thickness is 4mm, and inner layer steel plate thickness is 2mm.Can be connected by the M5 screw with outer vibration damper electrical equipment during assembling, and then be connected by the M4 screw with the guided missile internal weapon bays, connect so that be connected to change into by the rubber between the outer vibration damper two-layered steel plates by original screw between electrical equipment and the guided missile internal weapon bays.
Under the equivalent environment, the interiors of products device that the dual shock absorption device is not installed need to bear the impact that acceleration peak value is 10000g, the acceleration peak value that interiors of products device behind the dual shock absorption device need to bear is installed only is the impact of 300g, the dual shock absorption device effectively realized this electric product can be in the near field region blast impulse reliably working.Following table is to adopt inside and outside combined shock absorption structure of the present invention and be the laboratory data that the electrical equipment of shock-damping structure is installed.
Table 2 is installed shock-damping structure and shock-damping structure like products impact data sheet is not installed
As seen from the above table, the present invention can effectively reduce the impact force that the flexible linear shaped charge blast impulse is subject to interiors of products components and parts in the near field range; The dual shock absorption utensil has the advantages such as volume is little, simple installation simultaneously, and the product structure adaptability different to profile is stronger.
Claims (10)
1. electrical equipment shock-damping structure, described electrical equipment comprises housing and is installed in the electronic parts and components of enclosure interior, it is characterized in that, described shock-damping structure comprises that wherein: described switching support is provided with several vibration damper mounting holes for the switching support of mounting electronic device and several vibration dampers; Each vibration damper comprises a shock absorber support and two No. 1 damping mats, and described shock absorber support and No. 1 damping mat are an end with the sleeve of flange; No. 1 damping mat inserts the vibration damper mounting hole from the up and down both sides of switching support respectively, and shock absorber support from bottom to top inserts in No. 1 damping mat, and screw passes respectively shock absorber support from top to bottom switching support is fixed on the housing of electrical equipment.
2. electrical equipment shock-damping structure according to claim 1 is characterized in that, described No. 1 damping mat is made by ZN-37 damping sizing material.
3. electrical equipment shock-damping structure according to claim 1 is characterized in that, is provided with packing ring between described screw and No. 1 damping mat.
4. electrical equipment shock-damping structure according to claim 1, it is characterized in that, described electrical equipment also comprises circuit board assemblies, and described circuit board assemblies comprises two circuit boards and some circuit board damping devices, wherein: all be provided with several mounting holes on the every circuit board; Each circuit board damping device includes open tubular column, flat head screw, nut and No. 2 damping mats, described open tubular column places between two circuit boards, flat head screw is used nut screwing clamping after passing respectively from bottom to up the mounting hole of circuit board and open tubular column, wherein, all be lined with damping mat No. 2 between the two ends of flat head screw and two circuit boards; The center hole that screw passes respectively flat head screw from top to down is fixed on circuit board on the housing of electrical equipment.
5. electrical equipment shock-damping structure according to claim 4 is characterized in that, described No. 2 dampings are made by ZN-37 damping sizing material.
6. electrical equipment shock-damping structure according to claim 4 is characterized in that, the circuit board in the described circuit board assemblies and the minimum range of electrical equipment shell are 6mm.
7. electrical equipment shock-damping structure according to claim 4 is characterized in that, the two ends of described open tubular column are equipped with step hole, and an end of described No. 2 damping mats inserts respectively in the step hole of described open tubular column.
8. each described electrical equipment shock-damping structure is characterized in that according to claim 1-7, and also comprise outer vibration damper, described outer vibration damper is installed in the joint of electrical equipment and guided missile internal weapon bays, comprises two-layered steel plates and the rubber of sulfuration in two-layered steel plates; Described outer vibration damper fits in the housing of electrical equipment, is fixed on together on the guided missile internal weapon bays by the housing of bolt with outer vibration damper and electrical equipment.
9. electrical equipment shock-damping structure according to claim 8 is characterized in that, the rubber of described sulfuration in two-layered steel plates is the ZN-41 damping rubber.
10. electrical equipment shock-damping structure according to claim 8 is characterized in that, the thickness of described outer vibration damper is 10mm, and wherein the thickness of outer layer plate is 4mm, and the thickness of inner layer steel plate is 2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104320743A CN102927194A (en) | 2012-11-02 | 2012-11-02 | Electrical device damping structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104320743A CN102927194A (en) | 2012-11-02 | 2012-11-02 | Electrical device damping structure |
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| CN102927194A true CN102927194A (en) | 2013-02-13 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104265830A (en) * | 2014-09-13 | 2015-01-07 | 天津齐明环保设备有限公司 | Novel damping rubber pier |
| CN104613122A (en) * | 2015-01-12 | 2015-05-13 | 株洲南车时代电气股份有限公司 | Damping device and vehicle-mounted equipment containing the same |
| CN104948660A (en) * | 2015-06-15 | 2015-09-30 | 陕西宝成航空仪表有限责任公司 | Vibration absorbing structure for land-used inertial navigation product installation rack |
| CN107630960A (en) * | 2017-09-29 | 2018-01-26 | 北京动力机械研究所 | A kind of electronic product damper assembly structure using Anti-fall measure |
| CN109661160A (en) * | 2019-01-17 | 2019-04-19 | 姚久鹏 | A kind of double pcb board screening arrangements with shock-absorbing function |
| CN111642057A (en) * | 2020-04-30 | 2020-09-08 | 航天材料及工艺研究所 | Novel circuit board locking device with damping and vibration reduction functions |
| CN112243328A (en) * | 2020-11-10 | 2021-01-19 | 萧晓玥 | Sensor high-frequency vibration conduction blocking method for unmanned vehicle controller |
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| US5303896A (en) * | 1992-11-12 | 1994-04-19 | Sterka William E | Model airplane engine mounting system |
| CN201110767Y (en) * | 2007-12-07 | 2008-09-03 | 北京航天自动控制研究所 | Damping type rotating platform positioning restraint device |
| CN202266630U (en) * | 2011-07-15 | 2012-06-06 | 中国航天科技集团公司第九研究院第七七一研究所 | High damping rubber plate level vibration reduction component |
| CN202402555U (en) * | 2011-11-21 | 2012-08-29 | 中国航空工业集团公司沈阳发动机设计研究所 | Accessory arranging structure with vibration damping |
| CN202431828U (en) * | 2012-01-11 | 2012-09-12 | 湖北航天技术研究院总体设计所 | Damping device for inertia measuring combination on missile |
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- 2012-11-02 CN CN2012104320743A patent/CN102927194A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US5303896A (en) * | 1992-11-12 | 1994-04-19 | Sterka William E | Model airplane engine mounting system |
| CN201110767Y (en) * | 2007-12-07 | 2008-09-03 | 北京航天自动控制研究所 | Damping type rotating platform positioning restraint device |
| CN202266630U (en) * | 2011-07-15 | 2012-06-06 | 中国航天科技集团公司第九研究院第七七一研究所 | High damping rubber plate level vibration reduction component |
| CN202402555U (en) * | 2011-11-21 | 2012-08-29 | 中国航空工业集团公司沈阳发动机设计研究所 | Accessory arranging structure with vibration damping |
| CN202431828U (en) * | 2012-01-11 | 2012-09-12 | 湖北航天技术研究院总体设计所 | Damping device for inertia measuring combination on missile |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104265830A (en) * | 2014-09-13 | 2015-01-07 | 天津齐明环保设备有限公司 | Novel damping rubber pier |
| CN104613122A (en) * | 2015-01-12 | 2015-05-13 | 株洲南车时代电气股份有限公司 | Damping device and vehicle-mounted equipment containing the same |
| CN104948660A (en) * | 2015-06-15 | 2015-09-30 | 陕西宝成航空仪表有限责任公司 | Vibration absorbing structure for land-used inertial navigation product installation rack |
| CN107630960A (en) * | 2017-09-29 | 2018-01-26 | 北京动力机械研究所 | A kind of electronic product damper assembly structure using Anti-fall measure |
| CN109661160A (en) * | 2019-01-17 | 2019-04-19 | 姚久鹏 | A kind of double pcb board screening arrangements with shock-absorbing function |
| CN111642057A (en) * | 2020-04-30 | 2020-09-08 | 航天材料及工艺研究所 | Novel circuit board locking device with damping and vibration reduction functions |
| CN112243328A (en) * | 2020-11-10 | 2021-01-19 | 萧晓玥 | Sensor high-frequency vibration conduction blocking method for unmanned vehicle controller |
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Application publication date: 20130213 |