CN208739144U - A kind of communication engineering energy conservation interchanger - Google Patents

A kind of communication engineering energy conservation interchanger Download PDF

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Publication number
CN208739144U
CN208739144U CN201821287805.9U CN201821287805U CN208739144U CN 208739144 U CN208739144 U CN 208739144U CN 201821287805 U CN201821287805 U CN 201821287805U CN 208739144 U CN208739144 U CN 208739144U
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China
Prior art keywords
shell
cap
rotary shaft
interchanger
bearing
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CN201821287805.9U
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Chinese (zh)
Inventor
李万兴
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Jiangsu Ningtie Technology Co ltd
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Jiangsu Mingyuan Rail Transit Equipment Co Ltd
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Abstract

The utility model discloses a kind of communication engineering energy conservation interchangers, including body and pedestal, body is made of shell, fixation kit, radiating subassembly and energy saving interchanger main body, shell includes cap and shell, and cap and shell rear side are hinged, and cap is connected on front side of shell by fixation kit, radiating subassembly is set below fixation kit, Fabric Interface is set on housing forward end face, control panel is set on the right side of Fabric Interface, pedestal is fixedly mounted in four vertex of housing bottom.The utility model moves down movable block by rotating knob, and the reset spring of compression is unfolded, and fixed link is exited out of through slot and through-hole, realize shell and cap separation, inspection operation is simple, while being absorbed heat using heat sink, and flabellum is blown upwards, coolant liquid cooling to heat absorption, guarantee the endothermic effect of coolant liquid, fan moves up and down, to energy saving interchanger body side balanced ventilation, accelerate heat dissipation, design is reasonable.

Description

A kind of communication engineering energy conservation interchanger
Technical field
The utility model relates to communication engineering equipment technical field, specifically a kind of communication engineering energy conservation interchanger.
Background technique
Interchanger is a kind of network equipment for electric (light) signal forwarding, it can be any two of access switch Network node provides the pathway for electrical signals exclusively enjoyed, and the most common interchanger is Ethernet switch, as interchanger is using general And.Energy saving interchanger becomes main product.
Chinese Patent Application No.: 201720745820.2, Authorization Notice No.: 207075160 U of CN is provided a kind of logical Believe the energy saver of interchanger, including absorber plate, interchanger main body, connecting sleeve, liquid reserve tank and heat sink, the utility model is logical Cross and absorber plate be set in interchanger body interior, heat sink is set at the top of liquid reserve tank, realize heat dissipation, but still there are it is following not Foot: steam is formed less, and less, heat dissipation effect is general for heat sink effect, and it is inconvenient to dismantle when needing to overhaul, and is reduced and is overhauled effect Rate.
Summary of the invention
1, it to solve the problems, such as
It is poor for existing energy saving interchanger heat dissipation effect, inconvenient problem is overhauled, the purpose of this utility model is that mentioning For a kind of communication engineering energy conservation interchanger, to solve the problems mentioned in the above background technology.
2, technical solution
To achieve the above object, the utility model provides the following technical solutions:
A kind of communication engineering energy conservation interchanger, including body and pedestal, the body is by shell, fixation kit, heat dissipation group Part and energy saving interchanger main body are constituted, and the shell includes cap and shell, hinged, the cap on rear side of the cap and shell It is connected on front side of shell by fixation kit, radiating subassembly is set below the fixation kit, is arranged on the housing forward end face Control panel is arranged in Fabric Interface, the Fabric Interface right side, and pedestals are fixedly mounted in four vertex of the housing bottom.
As a further solution of the present invention: the fixation kit include knob, bearing one, movable block, fixed link, Fixed block, sliding shoe, reset spring, lead screw and fixed plate, the cap front side are symmetrical set fixed plate, the fixed plate Interior setting through-hole, the shell corresponds to lead to the hole site setting through slot, is symmetrical set fixed link on front side of the cap, described solid Inclined surface is arranged in fixed pole inner end, and the fixed link outer end sequentially passes through sliding shoe, fixed block, and the sliding shoe upper end is slidably connected Cap, the upper end of fixing block are fixedly connected with cap, and the reset spring socket is outside fixed link, described reset spring one end It is fixedly connected with fixed block, the reset spring other end is fixedly connected with sliding shoe, and screw rod, institute is arranged in two fixed link middle positions It states lead screw upper end to run through cap by bearing one and be fixedly connected with knob, the lead screw lower thread connects movable block, the shifting Motion block is inclined plate structure, and movable block resists two sides fixed link when enclosure closed, and fixed link passes through through-hole and is inserted in through slot, Reset spring is in compressive state, and shell and cap, which are realized, to be fixed, and needs to open shell when to exchange machine overhauling, be revolved by rotation Button makes movable block move down and separate with fixed link, and the reset spring of compression is unfolded, and fixed link is exited out of through slot and through-hole, shell Separated with cap, can pull-up cap to interchanger internal overhaul, it is easy to operate, design is reasonable.
The radiating subassembly includes heat sink, rotary shaft one, sliding sleeve, branch as a further solution of the present invention, Fagging, variable-frequency motor, belt, rotary shaft two, fan, bearing two, bearing three, sealing bearing four, belt pulley one, two and of belt pulley Heat sink is fixedly mounted in flabellum, the housing cavity, and energy saving interchanger main body, the heat dissipation is fixedly mounted in the heat sink upper end Plate is hollow structure and inner cavity is equipped with coolant liquid, and the rotary shaft one runs through heat sink, the rotary shaft by sealing bearing four One bottom end is fixedly connected with the output end of variable-frequency motor, and the variable-frequency motor is fixedly mounted on housing bottom face, the rotary shaft One top is rotatablely connected support plate by bearing two, and the support plate is fixedly mounted on case inside wall, in the rotary shaft one Section setting external screw thread, the rotary shaft one are threadedly coupled sliding sleeve, fan, one lower end of rotary shaft are fixedly mounted on the sliding sleeve Gear one, the one housing lace of gear are installed, the belt other end is socketed gear two, and the gear two is fixedly mounted on In rotary shaft two, the rotary shaft two is rotatablely connected housing bottom by bearing three, and fan is uniformly installed on two top of rotary shaft Leaf, the shell left and right sidewall and base end wall are respectively provided with thermovent, Air Filter are installed in the thermovent, when interchanger works not Stopping pregnancy heat amount, energy saving interchanger bottom part body heat transfer to heat sink, coolant liquid absorb heat dissipation, variable-frequency motor operating to it On the one hand by belt transmission effect, rotary shaft two is rotated, and flabellum is blown upwards, is cooled down to the coolant liquid of heat absorption, is guaranteed cooling The endothermic effect of liquid, on the other hand by one forward and reverse rotation of rotary shaft, fan is moved up and down, to energy saving interchanger body side Balanced ventilation, recycling thermovent progress air exchange, realization Homogeneouslly-radiating, good cooling effect, cooling rate are fast.
The control panel is electrical connected with fan, variable-frequency motor as a further solution of the present invention, operation Simply.
The pedestal includes elastic shock attenuation column and sucker as a further solution of the present invention, and the elasticity subtracts Shake column upper end is fixedly connected with shell, and elastic shock attenuation column bottom end is fixedly connected with sucker, is fixed by sucker and elastic shock attenuation column Buffering can effectively reduce the influence that vibration generates interchanger, play the role of protecting equipment.
3, beneficial effect
Compared with prior art, the utility model has the beneficial effects that
(1) the utility model moves down movable block by rotating knob, and the reset spring of compression is unfolded, and fixed link is from through slot It is exited in through-hole, shell and cap separation, pull-up cap is to interchanger internal overhaul, and easy to operate, design is rationally.
(2) the utility model absorbs heat dissipation using the coolant liquid in heat sink, realizes heat dissipation.
(3) on the one hand the utility model passes through belt transmission effect, and rotary shaft two rotates, and flabellum is blown upwards, to heat absorption Coolant liquid cooling, guarantee the endothermic effect of coolant liquid, on the other hand by one forward and reverse rotation of rotary shaft, moved down on fan It is dynamic, to energy saving interchanger body side balanced ventilation, good heat dissipation effect.
(4) the utility model is electrical connected using control panel and fan, variable-frequency motor, easy to operate.
(5) the utility model is fixed by sucker and elastic shock attenuation column buffers to reduce the shadow that vibration generates interchanger It rings, plays the role of protecting equipment.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of communication engineering energy conservation interchanger.
Fig. 2 is a kind of cross-sectional view of communication engineering energy conservation interchanger.
In figure: 1- body;2- pedestal;3- energy conservation interchanger main body;4- cap;5- shell;6- knob;7- movable block;8- Fixed link;9- fixed block;10- sliding shoe;11- fixed plate;12- heat sink;13- rotary shaft one;14- sliding sleeve;15- support plate; 16- variable-frequency motor;17- belt;18- rotary shaft two;19- fan;20- thermovent;21- elastic shock attenuation column;22- sucker;23- is handed over Alias;24- control panel;25- seals bearing four.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.
Please refer to Fig. 1~2, in the utility model embodiment, a kind of communication engineering energy conservation interchanger, including body 1 and bottom Seat 2, the body 1 are made of shell, fixation kit, radiating subassembly and energy saving interchanger main body 3, and the shell includes cap 4 With shell 5, the cap 4 and 5 rear side of shell are hinged, and the cap 4 is connected on front side of shell 5 by fixation kit, described solid Determining component includes knob 6, bearing one, movable block 7, fixed link 8, fixed block 9, sliding shoe 10, reset spring, lead screw and fixed plate 11, it is symmetrical set fixed plate 11 on front side of the cap 4, through-hole, the shell 5 corresponding through-hole are set in the fixed plate 11 Through slot is arranged in position, fixed link 8 is symmetrical set on front side of the cap 4, inclined surface is arranged in 8 inner end of fixed link, described 8 outer end of fixed link sequentially passes through sliding shoe 10, fixed block 9, and 10 upper end of sliding shoe is slidably connected cap 4, the fixed block 9 Upper end is fixedly connected with cap 4, and outside fixed link 8, described reset spring one end is fixedly connected with fixation for the reset spring socket Block 9, the reset spring other end are fixedly connected with sliding shoe 10, and two 8 middle positions of fixed link are arranged screw rods, on the lead screw End through cap 4 and is fixedly connected with knob 6 by bearing one, and the lead screw lower thread connects movable block 7, the movable block 7 For inclined plate structure, movable block 7 resists two sides fixed link 8 when enclosure closed, and fixed link 8 passes through through-hole and is inserted in through slot, Reset spring is in compressive state, and shell 5 and cap 4, which are realized, to be fixed, and needs to open shell when to exchange machine overhauling, passes through rotation Knob 6 makes movable block 7 move down and separate with fixed link 8, and the reset spring of compression is unfolded, and fixed link 8 is moved back out of through slot and through-hole Out, shell 5 and cap 4 separate, can pull-up cap 4 to interchanger internal overhaul, easy to operate, design rationally, the fixation Radiating subassembly is set below component, and the radiating subassembly includes heat sink 12, rotary shaft 1, sliding sleeve 14, support plate 15, frequency conversion Motor 16, belt 17, rotary shaft 2 18, fan 19, bearing two, bearing three, sealing bearing 4 25, belt pulley one, belt pulley two And heat sink 12 is fixedly mounted in flabellum, 5 inner cavity of shell, energy saving interchanger main body 3 is fixedly mounted in 12 upper end of heat sink, The heat sink 12 is hollow structure and inner cavity is equipped with coolant liquid, and the rotary shaft 1 is by sealing bearing 4 25 through heat dissipation Plate 12, one 13 bottom end of rotary shaft are fixedly connected with the output end of variable-frequency motor 16, and the variable-frequency motor 16 is fixedly mounted on shell On 5 bottom face of body, one 13 top of rotary shaft is rotatablely connected support plate 15 by bearing two, and the support plate 15 is fixedly mounted In 5 inner sidewall of shell, external screw thread is arranged in one 13 upper section of rotary shaft, and the rotary shaft 1 is threadedly coupled sliding sleeve 14, described Fan 19 is fixedly mounted on sliding sleeve 14, gear one, the one housing lace 17 of gear, institute are installed in one 13 lower end of rotary shaft 17 other end of belt socket gear two is stated, the gear two is fixedly mounted in rotary shaft 2 18, and the rotary shaft 2 18 passes through Bearing three is rotatablely connected 5 bottom end of shell, and flabellum, 5 left and right sidewall of shell and bottom are uniformly installed in 2 18 top of rotary shaft End wall is respectively provided with thermovent 20, and Air Filter is installed in the thermovent 20, and interchanger constantly generates heat, energy conservation exchange when working 3 bottom heat of owner's body is transferred to heat sink 12, and coolant liquid absorbs heat dissipation to it, on the one hand the operating of variable-frequency motor 16 passes through belt 17 transmission effects, rotary shaft 2 18 rotate, and flabellum is blown upwards, cool down to the coolant liquid of heat absorption, guarantee the heat absorption effect of coolant liquid Fruit, on the other hand by one 13 forward and reverse rotation of rotary shaft, fan 19 is moved up and down, uniform to energy saving 3 side of interchanger main body Air-supply recycles thermovent 20 to carry out air exchange, realizes Homogeneouslly-radiating, good cooling effect, cooling rate is fast, the shell 5 Fabric Interface 23 is set on front end face, control panel 24, the control panel 24 and fan are set on the right side of the Fabric Interface 23 19, variable-frequency motor 16 is electrical connected, and pedestal 2 is fixedly mounted in the vertex of 5 bottom end of shell four, and the pedestal 2 includes elasticity Shock structure 21 and sucker 22,21 upper end of elastic shock attenuation column are fixedly connected with shell 5, and 21 bottom end of elastic shock attenuation column is fixed to be connected Sucker 22 is connect, the influence that can be effectively reduced vibration and generate to interchanger is buffered by the fixation of sucker 22 and elastic shock attenuation column 21, Play the role of protecting equipment.
The working principle of the utility model is: interchanger constantly generates heat, energy saving 3 bottom of interchanger main body at work For heat transfer to heat sink 12, coolant liquid absorbs heat dissipation to it, on the one hand the operating of variable-frequency motor 16 passes through 17 transmission effect of belt, Rotary shaft 2 18 rotates, and flabellum is blown upwards, cools down to the coolant liquid of heat absorption, guarantees the endothermic effect of coolant liquid, on the other hand By one 13 forward and reverse rotation of rotary shaft, fan 19 is moved up and down, and to energy saving 3 side balanced ventilation of interchanger main body, is recycled Thermovent 20 carries out air exchange, realizes Homogeneouslly-radiating, and good cooling effect, cooling rate is fast, at the same by sucker 22 it is fixed and Elastic shock attenuation column 21, which buffers, can effectively reduce the influence that vibration generates interchanger, play the role of protecting equipment, need When to exchange machine overhauling, movable block 7 is set to move down and separate with fixed link 8 by rotating knob 6, the reset spring of compression is unfolded, Fixed link 8 is exited out of through slot and through-hole, and shell 5 and cap 4 separate, can pull-up cap 4 to interchanger internal overhaul, operation Simply, design is reasonable.
It is obvious to a person skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and And without departing substantially from the spirit or essential attributes of the utility model, it can realize that this is practical new in other specific forms Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this is practical new The range of type is indicated by the appended claims rather than the foregoing description, it is intended that containing for the equivalent requirements of the claims will be fallen in All changes in justice and range are embraced therein.It should not treat any reference in the claims as limiting Related claim.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art The other embodiments being understood that.

Claims (5)

1. a kind of communication engineering energy conservation interchanger, including body (1) and pedestal (2), which is characterized in that the body (1) is by outer Shell, fixation kit, radiating subassembly and energy saving interchanger main body (3) are constituted, and the shell includes cap (4) and shell (5), described Hinged on rear side of cap (4) and shell (5), the cap (4) is connected on front side of shell (5) by fixation kit, and described fixed group Radiating subassembly is set below part, Fabric Interface (23) are set on shell (5) front end face, are set on the right side of the Fabric Interface (23) It sets control panel (24), pedestal (2) are fixedly mounted in the vertex of shell (5) bottom end four.
2. a kind of communication engineering energy conservation interchanger according to claim 1, which is characterized in that the fixation kit includes rotation Button (6), bearing one, movable block (7), fixed link (8), fixed block (9), sliding shoe (10), reset spring, lead screw and fixed plate (11), it is symmetrical set fixed plate (11) on front side of the cap (4), through-hole, the shell is set in the fixed plate (11) (5) through slot is arranged in corresponding lead to the hole site, is symmetrical set fixed link (8) on front side of the cap (4), in the fixed link (8) End setting inclined surface, fixed link (8) outer end sequentially passes through sliding shoe (10), fixed block (9), sliding shoe (10) upper end Be slidably connected cap (4), and fixed block (9) upper end is fixedly connected cap (4), and the reset spring socket is in fixed link (8) Outside, described reset spring one end are fixedly connected fixed block (9), and the reset spring other end is fixedly connected with sliding shoe (10), Screw rod is arranged in two fixed link (8) middle positions, and the lead screw upper end through cap (4) and is fixedly connected with knob by bearing one (6), lead screw lower thread connection movable block (7), the movable block (7) are inclined plate structure.
3. a kind of communication engineering energy conservation interchanger according to claim 1, which is characterized in that the radiating subassembly includes dissipating Hot plate (12), rotary shaft one (13), sliding sleeve (14), support plate (15), variable-frequency motor (16), belt (17), rotary shaft two (18), Fan (19), bearing two, bearing three, sealing bearing four (25), belt pulley one, belt pulley two and flabellum, shell (5) inner cavity It is fixedly mounted heat sink (12), energy saving interchanger main body (3), the heat sink (12) is fixedly mounted in heat sink (12) upper end For hollow structure and inner cavity is equipped with coolant liquid, and the rotary shaft one (13) runs through heat sink (12) by sealing bearing four (25), Rotary shaft one (13) bottom end is fixedly connected with the output end of variable-frequency motor (16), and the variable-frequency motor (16) is fixedly mounted on shell On body (5) bottom face, rotary shaft one (13) top is rotatablely connected support plate (15) by bearing two, the support plate (15) It is fixedly mounted on shell (5) inner sidewall, external screw thread is arranged in rotary shaft one (13) upper section, and rotary shaft one (13) screw thread connects It connects sliding sleeve (14), fan (19) is fixedly mounted on the sliding sleeve (14), gear one is installed in rotary shaft one (13) lower end, described One housing lace (17) of gear, belt (17) other end are socketed gear two, and the gear two is fixedly mounted on rotary shaft On two (18), the rotary shaft two (18) is rotatablely connected shell (5) bottom end by bearing three, and rotary shaft two (18) top is equal Even installation flabellum.
4. a kind of communication engineering energy conservation interchanger according to claim 1, which is characterized in that the control panel (24) with Fan (19), variable-frequency motor (16) are electrical connected.
5. a kind of communication engineering energy conservation interchanger according to claim 1, which is characterized in that the pedestal (2) includes bullet Property shock structure (21) and sucker (22), elastic shock attenuation column (21) upper end are fixedly connected with shell (5), the elastic shock attenuation column (21) bottom end is fixedly connected with sucker (22).
CN201821287805.9U 2018-08-07 2018-08-07 A kind of communication engineering energy conservation interchanger Active CN208739144U (en)

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110216227A (en) * 2019-06-11 2019-09-10 李金富 A kind of building protective screening preparation facilities with heat sinking function
CN110221669A (en) * 2019-06-13 2019-09-10 牡丹江师范学院 A kind of sensitive data processing equipment for information retrieval
CN110247134A (en) * 2019-06-26 2019-09-17 刘甜甜 A kind of new energy car battery packet cooling system
CN110488430A (en) * 2019-08-01 2019-11-22 广州京海科技有限公司 A kind of fiber optical transceiver of the good cooling effect for communication engineering
CN110740392A (en) * 2019-10-25 2020-01-31 南京茗淇信息科技有限公司 5G wireless CPE equipment with long service life and convenient maintenance
CN111262168A (en) * 2019-12-10 2020-06-09 国家电网有限公司 Intelligent ring main unit based on distributed power distribution terminal
CN111836123A (en) * 2020-06-05 2020-10-27 上海交通大学 Adaptive configuration of industrial Internet of things fog nodes in complex network
CN112667002A (en) * 2021-01-30 2021-04-16 宁波原创动力动漫科技有限公司 Temperature control adjusting mechanism of large computer room and adjusting method thereof
CN112752168A (en) * 2020-12-29 2021-05-04 国网黑龙江省电力有限公司信息通信公司 Adjustable dustproof and dampproof industrial Ethernet switch
CN113141764A (en) * 2021-05-08 2021-07-20 安徽旭能电力股份有限公司 Cooling isolation hood for photovoltaic power generation management equipment

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110216227A (en) * 2019-06-11 2019-09-10 李金富 A kind of building protective screening preparation facilities with heat sinking function
CN110221669A (en) * 2019-06-13 2019-09-10 牡丹江师范学院 A kind of sensitive data processing equipment for information retrieval
CN110247134A (en) * 2019-06-26 2019-09-17 刘甜甜 A kind of new energy car battery packet cooling system
CN110488430A (en) * 2019-08-01 2019-11-22 广州京海科技有限公司 A kind of fiber optical transceiver of the good cooling effect for communication engineering
CN110740392A (en) * 2019-10-25 2020-01-31 南京茗淇信息科技有限公司 5G wireless CPE equipment with long service life and convenient maintenance
CN111262168A (en) * 2019-12-10 2020-06-09 国家电网有限公司 Intelligent ring main unit based on distributed power distribution terminal
CN111836123A (en) * 2020-06-05 2020-10-27 上海交通大学 Adaptive configuration of industrial Internet of things fog nodes in complex network
CN111836123B (en) * 2020-06-05 2021-06-04 上海交通大学 Industrial Internet of things fog node self-adaption device under complex network
CN112752168A (en) * 2020-12-29 2021-05-04 国网黑龙江省电力有限公司信息通信公司 Adjustable dustproof and dampproof industrial Ethernet switch
CN112752168B (en) * 2020-12-29 2022-08-09 国网黑龙江省电力有限公司信息通信公司 Adjustable dustproof and dampproof industrial Ethernet switch
CN112667002A (en) * 2021-01-30 2021-04-16 宁波原创动力动漫科技有限公司 Temperature control adjusting mechanism of large computer room and adjusting method thereof
CN112667002B (en) * 2021-01-30 2021-09-21 宁波原创动力动漫科技有限公司 Temperature control adjusting mechanism of large computer room and adjusting method thereof
CN113141764A (en) * 2021-05-08 2021-07-20 安徽旭能电力股份有限公司 Cooling isolation hood for photovoltaic power generation management equipment

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Effective date of registration: 20201125

Address after: Room 714-76, building 2, Zhicheng Park, no.6, Zhida Road, Jiangbei new district, Nanjing, Jiangsu Province, 210046

Patentee after: Nanjing ningtie NDT Technology Research Institute Co.,Ltd.

Address before: 210000 Science and Technology Research and Development Base of Maigaoqiao Pioneer Park, Qixia District, Nanjing City, Jiangsu Province, Yinchun Road 18-Q354

Patentee before: JIANGSU MINGYAUN TRACK TRAFFIC EQUIPMENT Co.,Ltd.

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Assignee: Nanjing Jiangbei new area Yangzi Technology Finance Leasing Co.,Ltd.

Assignor: Nanjing ningtie NDT Technology Research Institute Co.,Ltd.

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Denomination of utility model: Energy saving switch for communication engineering

Granted publication date: 20190412

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Denomination of utility model: Energy saving switch for communication engineering

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Granted publication date: 20190412

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Pledgor: Nanjing ningtie NDT Technology Research Institute Co.,Ltd.

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Address after: Room 714-76, building 2, Zhicheng Park, no.6, Zhida Road, Jiangbei new district, Nanjing, Jiangsu Province, 210046

Patentee after: Jiangsu ningtie Technology Co.,Ltd.

Address before: Room 714-76, building 2, Zhicheng Park, no.6, Zhida Road, Jiangbei new district, Nanjing, Jiangsu Province, 210046

Patentee before: Nanjing ningtie NDT Technology Research Institute Co.,Ltd.

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