CN107610901A - The transformer that radiator is reinforced - Google Patents
The transformer that radiator is reinforced Download PDFInfo
- Publication number
- CN107610901A CN107610901A CN201711046890.XA CN201711046890A CN107610901A CN 107610901 A CN107610901 A CN 107610901A CN 201711046890 A CN201711046890 A CN 201711046890A CN 107610901 A CN107610901 A CN 107610901A
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- Prior art keywords
- radiator
- casing
- transformer
- reinforced
- transverse support
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- 230000035939 shock Effects 0.000 claims abstract description 38
- 230000003014 reinforcing effect Effects 0.000 claims description 21
- 238000009434 installation Methods 0.000 claims description 12
- 230000002787 reinforcement Effects 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 9
- 230000008569 process Effects 0.000 abstract description 9
- 230000004044 response Effects 0.000 abstract description 5
- 239000003921 oil Substances 0.000 description 8
- 238000013016 damping Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000006378 damage Effects 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000002828 fuel tank Substances 0.000 description 3
- 229910052573 porcelain Inorganic materials 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 206010033799 Paralysis Diseases 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000002480 mineral oil Substances 0.000 description 1
- 235000010446 mineral oil Nutrition 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000009738 saturating Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Landscapes
- Housings And Mounting Of Transformers (AREA)
Abstract
The present invention relates to the transformer that a kind of radiator is reinforced.Including casing, shock bracket and radiator.Shock bracket includes transverse support bar, skewed horizontal load bar and damper, therefore shock bracket can produce small deformation in vibration environment.Under geological process, radiator can vibrate within the specific limits with shock bracket, so as to avoid being come off from casing because being rigidly connected fracture.Moreover, casing, radiator and shock bracket can form the structure similar to tuned mass damper, tuned mass damper can play a part of energy-dissipating and shock-absorbing, so as to reduce overall dynamic response.Further, be between radiator and host cavity it is flexible connect, there is the free degree.Therefore, in vibration processes radiator also can all the time with host cavity keep connect, so as to avoid generation oil leak phenomena such as.Therefore, the transformer anti-seismic performance that above-mentioned radiator is reinforced effectively is lifted.
Description
Technical field
The present invention relates to T ＆ D Technology field, more particularly to a kind of transformer of radiator reinforcing.
Background technology
Large-scale transformer is the crucial substation equipment in project of transmitting and converting electricity, plays and raises voltage at power station end,
User terminal reduces the effect of voltage, so as to reduce loss of the electric energy in transmission of electricity link.High-power transformer generally by iron core and coil,
Fill the casing and conservator, rise seat, radiator, the part such as the sleeve pipe composition of different voltage class of mineral oil.
However, in the geological disasters such as earthquake, the transformer for being arranged at open air is subject to different types of destruction, so as to
Cause project of transmitting and converting electricity to be stopped transport, power network paralysis, cause immeasurable loss.Wherein, radiator is generally positioned at outside casing
Side, and connected with the fuel tank of box house, high temperature oil takes heat out of, and heat is distributed in radiator.
At present, radiator is typically all to be installed on by rigid support on the outside of casing in transformer.When earthquake occurs, due to
Heatsink mass is larger, will produce larger inertia force, and common being rigidly connected will produce larger dynamic response, so as to lead
Cause radiator junction that oil leak occurs and destroys because stress is excessive.Therefore, existing transformer anti-seismic performance is poor.
The content of the invention
Based on this, it is necessary to for existing transformer anti-seismic performance it is poor the problem of, there is provided a kind of good seismic performance
Radiator reinforce transformer.
The transformer that a kind of radiator is reinforced, including：
Casing with host cavity；
Shock bracket, including：
Parallel and spaced two transverse support bars, the both ends of the transverse support bar be respectively arranged with fixed part and
Installation portion；
Two skewed horizontal load bars arranged in a crossed manner, described skewed horizontal load bar one end and one of them transverse support bar
Installation portion is connected, and the other end is connected with the fixed part of transverse support bar another described；
Damper, it is arranged on described two transverse support bars and described two skewed horizontal load bars, so that the laterally branch
Strut and the skewed horizontal load bar are scalable along its length；And
Radiator, it is installed on the installation portion；
Wherein, the fixed part is installed on the surface of the casing, and the radiator is installed on the casing, institute
Radiator is stated to connect with host cavity flexibility.
In one of the embodiments, it is provided with described two transverse support bars and described two skewed horizontal load bars more
Individual damper, and the multiple damper is serially connected.
In one of the embodiments, the transverse support bar is rotatably coupled with the skewed horizontal load bar.
In one of the embodiments, the transverse support bar is pivotally connected or is hinged with the skewed horizontal load bar.
In one of the embodiments, the shock bracket also includes vertical supporting bar, the both ends of the vertical supporting bar
The installation portion with described two transverse support bars is fixedly connected respectively.
In one of the embodiments, the radiator is multiple, and multiple radiators are around the circumference of the casing
It is arranged at intervals.
In one of the embodiments, the quantity of the shock bracket and the quantity of the radiator correspond, and more
The individual shock bracket being provided at circumferentially spaced around the casing.
In one of the embodiments, in addition to bellows, the radiator are connected with the casing by the bellows
It is logical.
In one of the embodiments, in addition to reinforcing plate, the reinforcing plate is covered in the surface of the casing, and described
Fixed part is installed in the reinforcing plate.
In one of the embodiments, the reinforcing plate is welded in the surface of the casing, and the fixed part adds with described
Strong plate screw threads for fastening connection.
The transformer that above-mentioned radiator is reinforced, shock bracket includes transverse support bar, skewed horizontal load bar and damper, therefore subtracts
Shake support can produce small deformation in vibration environment.Under geological process, radiator can be with shock bracket in certain limit
Internal vibration, so as to avoid being come off from casing because being rigidly connected fracture.Moreover, casing, radiator and shock bracket can form
Similar to the structure of tuned mass damper, tuned mass damper can play a part of energy-dissipating and shock-absorbing, overall so as to reduce
Dynamic response.Further, be between radiator and host cavity it is flexible connect, there is the free degree.Therefore, dissipated in vibration processes
Hot device also can all the time with host cavity keep connect, so as to avoid generation oil leak phenomena such as.Therefore, the transformation that above-mentioned radiator is reinforced
Device anti-seismic performance is effectively lifted.
Brief description of the drawings
Fig. 1 is the structural representation of the transformer that radiator is reinforced in present pre-ferred embodiments；
Fig. 2 is the structural representation of shock bracket in the transformer that radiator shown in Fig. 1 is reinforced.
Embodiment
For the ease of understanding the present invention, the present invention is described more fully below with reference to relevant drawings.In accompanying drawing
Give the preferred embodiment of the present invention.But the present invention can realize in many different forms, however it is not limited to herein
Described embodiment.On the contrary, the purpose for providing these embodiments is to make the understanding to the disclosure more saturating
It is thorough comprehensive.
It should be noted that when element is referred to as " being fixed on " another element, it can be directly on another element
Or there may also be element placed in the middle.When an element is considered as " connection " another element, it can be directly connected to
To another element or it may be simultaneously present centering elements.Term as used herein " vertical ", " horizontal ", " left side ",
" right side " and similar statement are for illustrative purposes only.
Unless otherwise defined, all of technologies and scientific terms used here by the article is with belonging to technical field of the invention
The implication that technical staff is generally understood that is identical.Term used in the description of the invention herein is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term as used herein " and/or " include one or more phases
The arbitrary and all combination of the Listed Items of pass.
Referring to Fig. 1, the transformer 100 that the radiator in present pre-ferred embodiments is reinforced includes casing 110, damping branch
Frame 120 and radiator 130.
Casing 110 has host cavity.Wherein, casing 110 is generally made from a metal, and has higher hardness and machinery strong
Degree.The elements such as the fuel tank (not shown) of core, accommodating conduction oil are provided with host cavity.According to the shape of transformer, casing 110
Generally cube shaped hollow structure.In addition, the outer surface of casing 110 is additionally provided with rise seat, porcelain bushing etc., other are electric
Gas element.
One end of shock bracket 120 is installed on casing 110, and the other end is fixedly connected with radiator 130, so as to radiate
Device 130 is installed on casing 110.Wherein, radiator 130 connects with the host cavity of casing 110.Specifically, radiator 130 is with receiving
Fuel tank connection in cavity volume.Therefore, absorb the internal heat of casing 110 conduction oil conduct to radiator 130 and can through radiating
Device 130 distributes heat, so as to reduce the temperature inside casing 110.
Radiator 130 can be the structures such as comb, fin, coil pipe, have larger area of dissipation.Further, radiate
Device 130 connects with host cavity flexibility.Flexibility connection refers to radiator 130 in the case where keeping connecting with host cavity, relatively
There is certain free degree in casing 110.Therefore, rock even if radiator 130 produces relative to casing 110, will not also cause
Radiator 130 departs from casing 110, so as to avoid occur oil leak phenomena such as.
Specifically in the present embodiment, the transformer 100 that radiator is reinforced also includes bellows 140.Radiator 130 and casing
110 are connected by bellows 140.
Bellows 140 has the advantages of scalable, good endurance, high intensity.Therefore, bellows 140 is meeting to make radiating
While device 130 connects with host cavity flexibility, moreover it is possible to effectively ensure service life.It is pointed out that radiator 130 and case
Body 110 can also be connected by modes such as rubber hose.
Also referring to Fig. 2, shock bracket 120 includes transverse support bar 121, skewed horizontal load bar 123 and damper 125.
Transverse support bar 121 is two, and two transverse support bars 121 are parallel and are arranged at intervals.Further, laterally prop up
The both ends of strut 121 are respectively arranged with fixed part (not shown) and installation portion 1212.Wherein, radiator 130 is installed on installation portion
On 1212, fixed part is installed on the surface of casing 110, and radiator 130 is installed on casing 110.Specifically, cross-brace
Bar 121 can be realized by the modes such as clamping, screw threads for fastening and casing 110 and radiator 130 and connected.The strut of transverse support bar 121
Shape, it can be made up of the higher metal material of intensity.
Skewed horizontal load bar 123 is two, and two skewed horizontal load bars 123 are arranged in a crossed manner.Skewed horizontal load bar 123 is with laterally propping up
The shape and material of strut 121 are identical.Further, the one end of skewed horizontal load bar 123 and the peace of one of transverse support bar 121
Dress portion 1212 is connected, and the other end is connected with the fixed part of another transverse support bar 121.Specifically, skewed horizontal load bar 123
It is fixedly connected with transverse support bar 121, also movable connection.Skewed horizontal load bar 123 can play oblique branch to transverse support bar 121
Support acts on.Moreover, the surface engagement of transverse support bar 121, skewed horizontal load bar 123 and casing 110, the knot of triangle can be formed
Structure, to provide radiator 130 stable support.
Damper 125 can be the types such as spring-damper, hydraulic damper.Damper 125 is multiple, is specifically at least
4.Damper 125 is arranged on two transverse support bars 121 and two skewed horizontal load bars 123 so that transverse support bar 121 and
Skewed horizontal load bar 123 is scalable along its length.Specifically, transverse support bar 121 and skewed horizontal load bar 123 may include multiple portions
Point, some is connected by damper 125, so as to possess Telescopic.
Therefore, when being given a shock, shock bracket 120 by transverse support bar 121 and skewed horizontal load bar 123 along flexible,
It can absorb and eliminates part kinetic energy.Shock bracket 120 can produce small deformation in vibration environment.Under geological process, dissipate
Hot device 130 can vibrate within the specific limits with shock bracket 120, so as to avoid being taken off from casing 110 because being rigidly connected fracture
Fall.Moreover, casing 110, radiator 130 and shock bracket 120 can form the structure similar to tuned mass damper, matter is tuned
Amount damper can play a part of energy-dissipating and shock-absorbing, so as to reduce overall dynamic response.Further, radiator 130 is with housing
It is flexible connection between chamber, there is the free degree.Therefore, radiator 130 also can keep connecting with host cavity all the time in vibration processes
It is logical, phenomena such as so as to avoid that oil leak occurs.
Further, since by the Large Amplitude Motion at an upper portion thereof of the radiator 130 with the mass tuning of casing 110, it can absorb simultaneously
Casing 110 is consumed because of vibrational energy caused by earthquake etc., and then mitigates the vibration for even suppressing casing 110.Therefore, can avoid because
Casing 110 it is excessive vibration and cause the electrical equipments such as porcelain bushing thereon damage situation occur.
In the present embodiment, multiple dampers are provided with two transverse support bars 121 and two skewed horizontal load bars 123
125, and multiple dampers 125 are serially connected.
Specifically, multiple dampers 125 being serially connected can play the function of Multistage damping.Therefore, in vibration environment,
Transverse support bar 121 and skewed horizontal load bar 123 carry out that flexible process is more steady, so that the damping of shock bracket 120 disappears
Energy effect is more preferable.
In the present embodiment, transverse support bar 121 is rotatably coupled with skewed horizontal load bar 123.Further, in this reality
Shi Zhong, transverse support bar 121 are pivotally connected or are hinged with skewed horizontal load bar 123.
In vibration environment, shock bracket 120 can be vibrated within the specific limits.Therefore, transverse support bar 121 and oblique branch
The relative position of strut 123 can change.If both is are rigidly connected, model is born more than rigidly connected in Oscillation Amplitude
Transverse support bar 121 and the junction of skewed horizontal load bar 123 can be caused to be broken when enclosing, and then radiator 130 is come off.
And be rotatably connected to be flexibly connected, the junction of transverse support bar 121 and skewed horizontal load bar 123 can be with vibration
Rotation.Therefore, the energy during the vibrations inside releasable shock bracket 120, so be effectively prevented from shock bracket 120 by
Damage.
In the present embodiment, shock bracket 120 also includes vertical supporting bar 127.The both ends of vertical supporting bar 127 respectively with
The installation portion 1212 of two transverse support bars 121 is fixedly connected.
Vertical supporting bar 127 is identical with the shape and material of transverse support bar 121.Specifically, vertical supporting bar 127 can be right
Two transverse support bars 121 play a part of vertical supporting, and more support triangle shape knots are formed in shock bracket 120
Structure, so as to further lift the intensity of shock bracket 120 and anti-seismic performance.
In the present embodiment, radiator 130 is multiple, and being provided at circumferentially spaced around casing 110 of multiple radiators 130.
Further, in the present embodiment, the quantity of shock bracket 120 and the quantity of radiator 130 correspond, and multiple damping branch
Frame 120 is provided at circumferentially spaced around casing 110.
Hindered specifically, multiple radiators 130 can form multiple similar tuning qualities with shock bracket 120 around casing 110
The structure of Buddhist nun's device.Therefore, in vibration environment caused resonance evenly, so as to further lifted energy-dissipating and shock-absorbing effect.
In the present embodiment, the transformer 100 that radiator is reinforced also includes reinforcing plate (not shown).Reinforcing plate is covered in case
The surface of body 110, and fixed part is installed in reinforcing plate.
Specifically, the material of reinforcing plate can be identical with the material of casing 110.Reinforcing plate can play to the surface of casing 110
The effect of local strengthening.Wherein, fixed part is installed in reinforcing plate.Therefore, shock bracket 120 and the bonding strength of casing 110
It is higher.
Further, in the present embodiment, reinforcing plate is welded in the surface of casing 110, and fixed part and reinforcing plate screw thread are tight
It is solidly connected.
Therefore, when installing reinforcing plate without the operation such as be punched, slotted on the surface of casing 110, so as to break
The globality of bad casing 110, and then prevent from reducing the intensity of casing 110.Obviously, reinforcing plate also can be by the side such as engaging, being bonded
Formula is fixed on the surface of casing 110.
Specifically, the surface of reinforcing plate can open up screw, and by bolt by the screw threads for fastening of fixed part reinforcing plate 140.Its
In, because the mode of screw threads for fastening has the characteristics of easy for installation, outfit is simple, therefore it is easy to not carry out radiator to existing
130 transformers reinforced are reequiped.
The transformer 100 that above-mentioned radiator is reinforced, shock bracket 120 include transverse support bar 121, skewed horizontal load bar 123
And damper 125, therefore shock bracket 120 can produce small deformation in vibration environment.Under geological process, radiator 130
It can be vibrated within the specific limits with shock bracket 120, so as to avoid being come off from casing 110 because being rigidly connected fracture.Moreover,
Casing 110, radiator 130 and shock bracket 120 can form the structure similar to tuned mass damper, tuned mass damper
Energy-dissipating and shock-absorbing can be played a part of, so as to reduce overall dynamic response.Further, it is between radiator 130 and host cavity
Flexibility connection, has the free degree.Therefore, radiator 130 also can keep connecting with host cavity all the time in vibration processes, so as to keep away
Phenomena such as exempting from that oil leak occurs.Therefore, the anti-seismic performance of transformer 100 that radiator is reinforced effectively is lifted.
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality
Apply all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, the scope that this specification is recorded all is considered to be.
Embodiment described above only expresses the several embodiments of the present invention, and its description is more specific and detailed, but simultaneously
Can not therefore it be construed as limiting the scope of the patent.It should be pointed out that come for one of ordinary skill in the art
Say, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the protection of the present invention
Scope.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (10)
- A kind of 1. transformer that radiator is reinforced, it is characterised in that including：Casing with host cavity；Shock bracket, including：Parallel and spaced two transverse support bars, the both ends of the transverse support bar are respectively arranged with fixed part and installation Portion；Two skewed horizontal load bars arranged in a crossed manner, described skewed horizontal load bar one end and the installation of one of them transverse support bar Portion is connected, and the other end is connected with the fixed part of transverse support bar another described；Damper, it is arranged on described two transverse support bars and described two skewed horizontal load bars, so that the transverse support bar And the skewed horizontal load bar is scalable along its length；AndRadiator, it is installed on the installation portion；Wherein, the fixed part is installed on the surface of the casing, and the radiator is installed on the casing, described to dissipate Hot device connects with host cavity flexibility.
- 2. the transformer that radiator according to claim 1 is reinforced, it is characterised in that described two transverse support bars and institute State and multiple dampers are provided with two skewed horizontal load bars, and the multiple damper is serially connected.
- 3. the transformer that radiator according to claim 1 is reinforced, it is characterised in that the transverse support bar with it is described tiltedly It is rotatably coupled to support bar.
- 4. the transformer that radiator according to claim 3 is reinforced, it is characterised in that the transverse support bar with it is described tiltedly It is pivotally connected to support bar or be hinged.
- 5. the transformer that radiator according to claim 1 is reinforced, it is characterised in that the shock bracket also includes vertical Support bar, the installation portion of the both ends of the vertical supporting bar respectively with described two transverse support bars are fixedly connected.
- 6. the transformer that radiator according to claim 1 is reinforced, it is characterised in that the radiator is multiple and more The individual radiator being provided at circumferentially spaced around the casing.
- 7. the transformer that radiator according to claim 6 is reinforced, it is characterised in that the quantity of the shock bracket and institute The quantity for stating radiator corresponds, and the multiple shock bracket being provided at circumferentially spaced around the casing.
- 8. the transformer that radiator according to claim 1 is reinforced, it is characterised in that also including bellows, the radiating Device is connected with the casing by the bellows.
- 9. the transformer that radiator according to claim 1 is reinforced, it is characterised in that also including reinforcing plate, the reinforcement Plate is covered in the surface of the casing, and the fixed part is installed in the reinforcing plate.
- 10. the transformer that radiator according to claim 9 is reinforced, it is characterised in that the reinforcing plate is welded in described The surface of casing, the fixed part are connected with the reinforcing plate screw threads for fastening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711046890.XA CN107610901A (en) | 2017-10-31 | 2017-10-31 | The transformer that radiator is reinforced |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711046890.XA CN107610901A (en) | 2017-10-31 | 2017-10-31 | The transformer that radiator is reinforced |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107610901A true CN107610901A (en) | 2018-01-19 |
Family
ID=61084705
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711046890.XA Pending CN107610901A (en) | 2017-10-31 | 2017-10-31 | The transformer that radiator is reinforced |
Country Status (1)
| Country | Link |
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| CN (1) | CN107610901A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108305757A (en) * | 2018-01-31 | 2018-07-20 | 南方电网科学研究院有限责任公司 | The transformer that conservator is reinforced |
| CN113099652A (en) * | 2021-03-26 | 2021-07-09 | 山东英信计算机技术有限公司 | Matrix type earthquake energy dissipation device for server cabinet |
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| JP2000045560A (en) * | 1998-07-24 | 2000-02-15 | Matsumura Gumi Corp | Vibration damping device and octagonal panel type damper |
| JP2002080090A (en) * | 2000-09-07 | 2002-03-19 | Ishikawajima Harima Heavy Ind Co Ltd | Aseismatic structure of spherical tank |
| KR20140003957A (en) * | 2012-07-02 | 2014-01-10 | 현대중공업 주식회사 | Radiator for transformer |
| CN204010895U (en) * | 2014-07-11 | 2014-12-10 | 江苏华鹏变压器有限公司 | A kind of novel transformer heat radiator fixing structure |
| CN106057423A (en) * | 2016-07-20 | 2016-10-26 | 成都双星变压器有限公司 | Apparatus for reducing noises of high-capacity power transformer |
| CN207409351U (en) * | 2017-10-31 | 2018-05-25 | 南方电网科学研究院有限责任公司 | The transformer that radiator is reinforced |
-
2017
- 2017-10-31 CN CN201711046890.XA patent/CN107610901A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000045560A (en) * | 1998-07-24 | 2000-02-15 | Matsumura Gumi Corp | Vibration damping device and octagonal panel type damper |
| JP2002080090A (en) * | 2000-09-07 | 2002-03-19 | Ishikawajima Harima Heavy Ind Co Ltd | Aseismatic structure of spherical tank |
| KR20140003957A (en) * | 2012-07-02 | 2014-01-10 | 현대중공업 주식회사 | Radiator for transformer |
| CN204010895U (en) * | 2014-07-11 | 2014-12-10 | 江苏华鹏变压器有限公司 | A kind of novel transformer heat radiator fixing structure |
| CN106057423A (en) * | 2016-07-20 | 2016-10-26 | 成都双星变压器有限公司 | Apparatus for reducing noises of high-capacity power transformer |
| CN207409351U (en) * | 2017-10-31 | 2018-05-25 | 南方电网科学研究院有限责任公司 | The transformer that radiator is reinforced |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108305757A (en) * | 2018-01-31 | 2018-07-20 | 南方电网科学研究院有限责任公司 | The transformer that conservator is reinforced |
| CN113099652A (en) * | 2021-03-26 | 2021-07-09 | 山东英信计算机技术有限公司 | Matrix type earthquake energy dissipation device for server cabinet |
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