CN207441417U - A kind of cooling device for dry-type transformer - Google Patents
A kind of cooling device for dry-type transformer Download PDFInfo
- Publication number
- CN207441417U CN207441417U CN201721336094.5U CN201721336094U CN207441417U CN 207441417 U CN207441417 U CN 207441417U CN 201721336094 U CN201721336094 U CN 201721336094U CN 207441417 U CN207441417 U CN 207441417U
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- CN
- China
- Prior art keywords
- dry
- type transformer
- drive motor
- cooling channel
- babinet
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- 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 - Fee Related
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Abstract
The utility model discloses a kind of cooling device for dry-type transformer, including：Dry-type transformer babinet, bushing, low-tension bushing, left ventilation opening, right ventilation opening, transformer core, insulation fixed block, left cooling channel pipe, right cooling channel pipe, left extraposition air hose, left air duct, left fan drive shaft, left drive motor, right external air hose, right air duct, right fan drive shaft, right drive motor, fan blade, cooling channel mouth, transformer winding, evaporator, external refrigerator, refrigerant circulation circuit, thermoelectric generation film, two-sided heat-conducting silica gel sheet.The thermal energy that the utility model generates when dry-type transformer is run by evaporator and external refrigerator efficiently uses, and thermal energy is converted into part electric energy required when drive motor works, cost-effective, low-carbon environment-friendly by thermoelectric generation film.
Description
Technical field
The utility model is related to technical field of transformer equipment, are specially a kind of cooling device for dry-type transformer.
Background technology
Dry-type transformer is widely used in the places such as local lighting, skyscraper, airport, harbour CNC mechanical equipments, simply
Say that dry-type transformer just refers to the transformer that iron core and winding are not immersed in insulating oil.The dry-type transformer type of cooling is divided into certainly
Right air cooling and force air cooling.During natural air cooling, transformer can the long-term continuous operation under rated capacity.Forced air cooling
When, transformer output capacity can improve 50%, suitable for interrupted running overload or emergent accident running overload；Due to mistake
Load loss and impedance voltage amplification are larger during load operation, in non-economy operating status, therefore should not be at for a long time
Continuous running overload.
In the process of running, under the action of electrically and magnetically, winding and iron core can generate heat dry-type transformer, since dry type becomes
The design and operation mode of depressor uniqueness, its own heat dissipation effect is very poor, such as cannot in time take away heat at this time, will cause dry type
Transformer burns the major accident of even explosion, and traditional dry-type transformer is done not in place in terms of radiating treatment, so machine
Group is difficult to continuous running overload for a long time, greatly reduces the work efficiency of dry-type transformer.
Utility model content
The purpose of this utility model is to provide a kind of cooling device for dry-type transformer, to solve institute in above-mentioned background technology
The problem of mentioning.
To achieve the above object, the utility model provides following technical solution：
A kind of cooling device for dry-type transformer, structure include：Dry-type transformer babinet, bushing, low-tension bushing, a left side
Ventilation opening, right ventilation opening, transformer core, insulation fixed block, left cooling channel pipe, right cooling channel pipe, left extraposition air hose, a left side
Air duct, left fan drive shaft, left drive motor, right external air hose, right air duct, right fan drive shaft, right drive motor, fan leaf
Piece, cooling channel mouth, transformer winding, evaporator, external refrigerator, refrigerant circulation circuit, thermoelectric generation film, two-sided thermal conductive silicon
Film, the dry-type transformer babinet are divided into upper box and lower box, are provided at the top of the upper box for dry-type transformer high pressure
The circular hole that casing, low-tension bushing pass through, described sleeve pipe are pierced by circular hole part by sealing ring tight seal, the upper box and nowel
Body is made by insulating materials, and the upper box and lower box are closely connected by fastening bolt；
By insulating fixed block in dry-type transformer babinet, left ventilation opening is mounted on dry the transformer core
The left side of formula transformer-cabinet, right ventilation opening are mounted on the right side of dry-type transformer babinet, and the left cooling channel pipe is fixed
Mounted on the in vivo left side of dry-type transformer case, left cooling channel pipe is connected with left extraposition air hose, is equipped on left extraposition air hose
Left air duct, the left fan drive shaft are mounted in left air duct, and left drive motor, institute are installed in the top of left fan drive shaft
The right cooling channel pipe stated is fixedly mounted on the in vivo right side of dry-type transformer case, and right cooling channel pipe connects with right external air hose
It is logical, right air duct is installed, the right fan drive shaft is mounted in right air duct, the bottom of right fan drive shaft on right external air hose
Right drive motor is installed at end, and the transformer winding is wrapped on transformer core, and the cooling channel mouth is mounted on a left side
On cooling channel pipe and right cooling channel pipe, the fan blade is mounted on left fan drive shaft and right fan drive shaft；
Evaporator is equipped in the dry-type transformer babinet, the dry-type transformer babinet is externally provided with external refrigerator, institute
Stating external refrigerator includes compressor and condenser, and the compressor, evaporator and condenser are sequentially communicated to form refrigerant circulation
Circuit, the hot junction of the thermoelectric generation film are fixed on through two-sided heat-conducting silica gel sheet on the heat dissipation wall of condenser, the thermo-electric generation
The cold end of piece is fixed with aluminum thermal fin, the electric energy output end of the thermoelectric generation film and left driving by two-sided heat-conducting silica gel sheet
Motor and the electrical connection of right drive motor, between the electric energy output end of the thermoelectric generation film and left drive motor and right drive motor
Equipped with stable-pressure device.
Preferably, the dry-type transformer babinet top is also equipped with temperature sensor, the dry-type transformer babinet top
Portion is also equipped with PLC controller, and the PLC controller is electrically connected at temperature sensor, left drive motor and right drive motor,
The PLC controller is according to temperature sensor measurement and transmits online temperature value, automatically controls left drive motor and right driving horse
The work reached.
Preferably, the thermoelectric generation film is multiple uniformly to be configured along the heat dissipation wall of condenser, and each thermoelectric generation film uses
The connection mode of series connection links together its electric energy output end.
Preferably, groove is equipped on the inside of the left ventilation opening and right ventilation opening, dust-proof mesh sheet is equipped in the groove, it is dust-proof
Mesh sheet has small lattice structure, and the buckle of dust-proof mesh sheet one side makes dust-proof mesh sheet stablize loading dry-type transformer babinet.
Preferably, the dry-type transformer babinet is connected with a point wind convex block, and wind convex block is divided to be connected with rotational flow generator, described
Wind convex block is divided to be connected with rotational flow generator to be located on front side of cooling channel mouth.
Preferably, the bottom of the dry-type transformer babinet is equipped with pedestal, and the both ends of pedestal are mounted on the elastic force wing
Exhibition, the nested inside of the elastic force span are equipped with compression spring, and nesting is equipped with dry at the bosom position of the pedestal
Powder fire extinguisher holding tank, and extinguishing chemical jet port is installed above dry powder extinguisher holding tank.
Compared with prior art, the beneficial effects of the utility model are as follows：
1st, the thermal energy generated when the utility model is run dry-type transformer by evaporator and external refrigerator is effectively sharp
With, and thermal energy is converted into part electric energy required when drive motor works, cost-effective, low-carbon ring by thermoelectric generation film
It protects.
2nd, thermoelectric generation film is fixed on the heat dissipation wall of condenser, is had by two-sided heat-conducting silica gel sheet by the utility model
Effect ground solve because condenser contact with thermoelectric generation film it is not comprehensive, and caused by thermal energy waste.
3rd, the utility model uses the design of left cooling channel pipe, right cooling channel pipe, real using left air duct and right air duct
The cooling heat dissipation of existing transformer core and transformer winding, design is scientific and reasonable, simple in structure, easy to use.
4th, the utility model is installed by installing the elastic force span respectively at the both ends of pedestal in the nested inside of the elastic force span
Compression spring can effectively reduce the high-frequency vibration of unit, reduce unit and shake damage to inside transformer winding,
Greatly improve the service life of dry-type transformer body.
5th, the utility model installs dry powder extinguisher holding tank by the nested inside in pedestal, can be by external dry powder
Fire extinguisher is disposed within, when transformer fire occurs, can carry out fire extinguishing processing to transformer at the first time, can be effective
Reduce loss.
6th, the utility model can prevent hair fibre class by being packed into and removing the dust-proof mesh sheet of small grid under different operating modes
Dust enters, so as to be effectively protected dry-type transformer.
Description of the drawings
Fig. 1 is the utility model structure diagram；
Fig. 2 is the attachment structure schematic diagram of the utility model thermoelectric generation film；
Fig. 3 is the mounting structure schematic diagram of the dust-proof mesh sheet of the utility model.
In figure：1st, dry-type transformer babinet；101st, upper box；102nd, lower box；103rd, fastening bolt；104th, pedestal；
105th, the elastic force span；106th, compression spring；107th, dry powder extinguisher holding tank；108th, extinguishing chemical jet port；2nd, bushing；3、
Low-tension bushing；4th, left ventilation opening；5th, right ventilation opening；6th, transformer core；7th, insulate fixed block；8th, left cooling channel pipe；9th, it is right
Cooling channel pipe；10th, left extraposition air hose；11st, left air duct；12nd, left fan drive shaft；13rd, left drive motor；14th, right external wind
Pipe；15th, right air duct；16th, right fan drive shaft；17th, right drive motor；18th, fan blade；19th, cooling channel mouth；20th, transformation
Device winding；21st, evaporator；22nd, external refrigerator；23rd, refrigerant circulation circuit；24th, thermoelectric generation film；25th, two-sided heat conductive silica gel
Piece；26th, groove；27th, dust-proof mesh sheet；28th, it is buckled；29th, wind convex block is divided；30th, rotational flow generator；31st, compressor；32nd, condenser；
33rd, aluminum thermal fin；34th, temperature sensor；35th, PLC controller.
Specific embodiment
The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out
It clearly and completely describes, 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 embodiment in the utility model, those of ordinary skill in the art are without making creative work
All other embodiments obtained shall fall within the protection scope of the present invention.
- 3 are please referred to Fig.1, a kind of cooling device for dry-type transformer, structure includes：Dry-type transformer babinet 1, high pressing sleeve
Pipe 2, low-tension bushing 3, left ventilation opening 4, right ventilation opening 5, transformer core 6, insulation fixed block 7, left cooling channel pipe 8, the right side are cold
But ventilation duct 9, left extraposition air hose 10, left air duct 11, left fan drive shaft 12, left drive motor 13, right external air hose 14, right wind
Cylinder 15, right fan drive shaft 16, right drive motor 17, fan blade 18, cooling channel mouth 19, transformer winding 20, evaporator
21st, external refrigerator 22, refrigerant circulation circuit 23, thermoelectric generation film 24, two-sided heat-conducting silica gel sheet 25, dry-type transformer babinet 1
It is divided into upper box 101 and lower box 102,101 top of upper box is provided with to be passed through for dry-type transformer bushing 2, low-tension bushing 3
Circular hole, casing is pierced by circular hole part and made by sealing ring tight seal, upper box 101 and lower box 102 by insulating materials, on
Babinet 101 and lower box 102 are closely connected by fastening bolt 103, transformer core 6 be mounted on by the fixed block 7 that insulate
In dry-type transformer babinet 1, left ventilation opening 4 is mounted on the left side of dry-type transformer babinet 1, and right ventilation opening 5 becomes mounted on dry type
The right side of depressor babinet 1, left cooling channel pipe 8 be fixedly mounted on left side in dry-type transformer babinet 1, left cooling channel pipe
8 connect with left extraposition air hose 10, and left air duct 11 is equipped on left extraposition air hose 10, left fan drive shaft 12 be mounted on left air duct
In 11, left drive motor 13 is installed on the top of left fan drive shaft 12, right cooling channel pipe 9 be fixedly mounted on dry type transformation
Right side in device babinet 1, right cooling channel pipe 9 are connected with right external air hose 14, and right air duct 15 is equipped on right external air hose 14,
Right fan drive shaft 16 be mounted in right air duct 15, right drive motor 17 is installed in the bottom of right fan drive shaft 16, transformation
Device winding 20 is wrapped on transformer core 6, cooling channel mouth 19 be mounted on left cooling channel pipe 8 and right cooling channel pipe 9
On, fan blade 18 be mounted on left fan drive shaft 11 and right fan drive shaft 16 on, in left ventilation opening 4 and right ventilation opening 5
Side is equipped with groove 26, and dust-proof mesh sheet 27 is equipped in groove 26, and dust-proof mesh sheet 27 has small lattice structure, dust-proof 27 one side of mesh sheet
Buckle 28 makes dust-proof mesh sheet 27 stablize loading dry-type transformer babinet 1, and dry-type transformer babinet 1 is connected with a point wind convex block 29, point
Wind convex block 29 is connected with rotational flow generator 30, and wind convex block 29 is divided to be connected with rotational flow generator 30 and is located at 19 front side of cooling channel mouth,
Evaporator 21 is equipped in dry-type transformer babinet 1, dry-type transformer babinet 1 is externally provided with external refrigerator 22, external refrigerator bag
Compressor 31 and condenser 32 are included, compressor 31, evaporator 21 and condenser 32 are sequentially communicated to form refrigerant circulation circuit 23, temperature
The hot junction of poor power generation sheet 24 is fixed on through two-sided heat-conducting silica gel sheet 25 on the heat dissipation wall of condenser 32, the cold end of thermoelectric generation film 24
Aluminum thermal fin 33, the electric energy output end of thermoelectric generation film 24 and left drive motor 13 are fixed with by two-sided heat-conducting silica gel sheet 25
It is electrically connected with right drive motor 17, between the electric energy output end of thermoelectric generation film 24 and left drive motor 13 and right drive motor 17
Equipped with stable-pressure device, thermoelectric generation film 24 is multiple, is uniformly configured along the heat dissipation wall of condenser 32, each thermoelectric generation film 24 uses
The connection mode of series connection links together its electric energy output end, and 1 top of dry-type transformer babinet is also equipped with temperature sensor
34, the top of dry-type transformer babinet 1 is also equipped with PLC controller 35, PLC controller 35 be electrically connected at temperature sensor 34,
Left drive motor 13 and right drive motor 17, PLC controller 35 measure according to temperature sensor 34 and transmit online temperature value, from
The dynamic work for controlling left drive motor 13 and right drive motor 17, the bottom of dry-type transformer babinet 1 are equipped with pedestal 104, and
The both ends of pedestal 104 are mounted on the elastic force span 105, and the nested inside of the elastic force span 105 is equipped with compression spring 106, pedestal
Nesting is equipped with dry powder extinguisher holding tank 107, and the top of dry powder extinguisher holding tank 107 at 104 bosom position
Extinguishing chemical jet port 108 is installed.
The cooling device for dry-type transformer after compressor 31 compresses refrigerant during use, forms the refrigerant of high temperature and pressure, high
The refrigerant of warm high pressure is flowed into condenser 32, and refrigerant releases substantial amounts of heat in condenser 32,24 hot junction of thermoelectric generation film
Temperature rises rapidly, the cold end not risen also with temperature at this moment is formed temperature difference, but the temperature of 24 cold end of thermoelectric generation film is same
Sample can be gradually increasing, and at this moment aluminum thermal fin 33 will absorb the heat of cold end at any time, and the temperature that aluminum thermal fin 33 rises is by outer
Boundary's air absorbs, and the temperature long period of 24 cold end of thermoelectric generation film can thus be in than 24 hot junction of thermoelectric generation film
Temperature low state, so the long period produce electricl energy.Refrigerant is formed the refrigerant of low-temp low-pressure after absorption heat, low temperature is low
The refrigerant of pressure, which is flowed into evaporator 21, to be absorbed the heat in dry-type transformer babinet 1 and flows back into compressor 31, compressor 31
It is imported after refrigerant is compressed in condenser 32, refrigerant discharges heat, so cycles, and temperature sensor 34 detects dry-type transformer
Temperature in babinet 1, when the temperature is excessively high, testing result is fed back to PLC by temperature sensor 34 in dry-type transformer babinet 1
Controller 1, controller is by analysis, after processing, pass through left drive motor 13 and right drive motor 17 and control fan drive shaft
Start, fan blade 18 makes air enter from ventilation opening in dry-type transformer babinet 1, and air was carried out by dust-proof mesh sheet 27
Filter, the air-flow that fan blade 18 generates is by forming eddy flow, the refrigerant progress of eddy flow and low-temp low-pressure after rotational flow generator 30
Heat exchange, the eddy flow after heat exchange cool down the transformer winding 20 in dry-type transformer babinet 1 and transformer core 6, when dry
When temperature in formula transformer-cabinet 1 drops to suitable temperature, left drive motor 13 and right drive motor 17 are stopped, and have worked
Into.
While there has been shown and described that the embodiment of the utility model, for the ordinary skill in the art,
It is appreciated that in the case where not departing from the principle of the utility model and spirit can these embodiments be carried out with a variety of variations, repaiied
Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.
Claims (6)
1. a kind of cooling device for dry-type transformer, structure include：Dry-type transformer babinet (1), bushing (2), low pressure set
Manage (3), left ventilation opening (4), right ventilation opening (5), transformer core (6), insulation fixed block (7), left cooling channel pipe (8), the right side
Cooling channel pipe (9), left extraposition air hose (10), left air duct (11), left fan drive shaft (12), left drive motor (13), the right side are outer
Put air hose (14), right air duct (15), right fan drive shaft (16), right drive motor (17), fan blade (18), cooling channel mouth
(19), transformer winding (20), evaporator (21), external refrigerator (22), refrigerant circulation circuit (23), thermoelectric generation film
(24), two-sided heat-conducting silica gel sheet (25), the dry-type transformer babinet (1) are divided into upper box (101) and lower box (102),
It is characterized in that：The circle passed through for dry-type transformer bushing (2), low-tension bushing (3) is provided at the top of the upper box (101)
Hole, described sleeve pipe are pierced by circular hole part by sealing ring tight seal, and the upper box (101) and lower box (102) are by insulation material
Material makes, and the upper box (101) and lower box (102) are closely connected by fastening bolt (103)；
The transformer core (6) is mounted on by the fixed block that insulate (7) in dry-type transformer babinet (1), left ventilation opening (4)
Mounted on the left side of dry-type transformer babinet (1), right ventilation opening (5) is mounted on the right side of dry-type transformer babinet (1), described
Left cooling channel pipe (8) is fixedly mounted on the left side in dry-type transformer babinet (1), left cooling channel pipe (8) and left extraposition wind
(10) connection is managed, left air duct (11) is installed on left extraposition air hose (10), the left fan drive shaft (12) is mounted on left wind
In cylinder (11), left drive motor (13) is installed on the top of left fan drive shaft (12), and the right cooling channel pipe (9) is fixed
Right side in dry-type transformer babinet (1), right cooling channel pipe (9) connect with right external air hose (14), right external wind
Right air duct (15) is installed, the right fan drive shaft (16) is mounted in right air duct (15), right fan driving on pipe (14)
Right drive motor (17) is installed in the bottom of axis (16), and the transformer winding (20) is wrapped on transformer core (6), described
Cooling channel mouth (19) be mounted on left cooling channel pipe (8) and right cooling channel pipe (9) on, the fan blade (18) pacify
On left fan drive shaft (11) and right fan drive shaft (16)；
Evaporator (21) is equipped in the dry-type transformer babinet (1), the dry-type transformer babinet (1) is externally provided with external refrigeration
Device (22), the external refrigerator include compressor (31) and condenser (32), the compressor (31), evaporator (21) and cold
Condenser (32) is sequentially communicated to form refrigerant circulation circuit (23), and the hot junction of the thermoelectric generation film (24) is through two-sided heat-conducting silica gel sheet
(25) it is fixed on the heat dissipation wall of condenser (32), the cold end of the thermoelectric generation film (24) passes through two-sided heat-conducting silica gel sheet (25)
It is fixed with aluminum thermal fin (33), electric energy output end and left drive motor (13) and the right driving horse of the thermoelectric generation film (24)
Be electrically connected up to (17), the electric energy output end of the thermoelectric generation film (24) and left drive motor (13) and right drive motor (17) it
Between be equipped with stable-pressure device.
2. a kind of cooling device for dry-type transformer according to claim 1, it is characterised in that：The dry-type transformer babinet
(1) top is also equipped with temperature sensor (34), and PLC controller (35) is also equipped at the top of the dry-type transformer babinet (1),
The PLC controller (35) is electrically connected at temperature sensor (34), left drive motor (13) and right drive motor (17), described
PLC controller (35) according to temperature sensor (34) measure and transmit online temperature value, automatically control left drive motor (13) and
The work of right drive motor (17).
3. a kind of cooling device for dry-type transformer according to claim 1, it is characterised in that：The thermoelectric generation film (24)
It to be multiple, is uniformly configured along the heat dissipation wall of condenser (32), each thermoelectric generation film (24) is electric by it using the connection mode of series connection
Energy output terminal links together.
4. a kind of cooling device for dry-type transformer according to claim 1, it is characterised in that：The left ventilation opening (4) and
Groove (26) is equipped on the inside of right ventilation opening (5), dust-proof mesh sheet (27) is equipped in the groove (26), dust-proof mesh sheet (27) has small
Lattice structure, the buckle (28) of dust-proof mesh sheet (27) one side make dust-proof mesh sheet (27) stablize loading dry-type transformer babinet (1).
5. a kind of cooling device for dry-type transformer according to claim 1, it is characterised in that：The dry-type transformer babinet
(1) a point wind convex block (29) is connected with, wind convex block (29) is divided to be connected with rotational flow generator (30), it is described to divide wind convex block (29) and eddy flow
Generator (30) connection is located on front side of cooling channel mouth (19).
6. a kind of cooling device for dry-type transformer according to claim 1, it is characterised in that：The dry-type transformer babinet
(1) bottom is equipped with pedestal (104), and the both ends of pedestal (104) are mounted on the elastic force span (105), the elastic force span
(105) nested inside is equipped with compression spring (106), and nesting is equipped with dry at the bosom position of the pedestal (104)
Powder fire extinguisher holding tank (107), and extinguishing chemical jet port (108) is installed above dry powder extinguisher holding tank (107).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721336094.5U CN207441417U (en) | 2017-10-17 | 2017-10-17 | A kind of cooling device for dry-type transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721336094.5U CN207441417U (en) | 2017-10-17 | 2017-10-17 | A kind of cooling device for dry-type transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207441417U true CN207441417U (en) | 2018-06-01 |
Family
ID=62293340
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721336094.5U Expired - Fee Related CN207441417U (en) | 2017-10-17 | 2017-10-17 | A kind of cooling device for dry-type transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207441417U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110942885A (en) * | 2019-11-26 | 2020-03-31 | 安徽中变变压器有限公司 | Transformer capable of circularly radiating |
| CN111755212A (en) * | 2020-08-05 | 2020-10-09 | 滁州先奇工业科技有限公司 | Transformer with heat conduction and radiation structure |
| CN113314305A (en) * | 2021-05-27 | 2021-08-27 | 河南安益达电工有限公司 | Box-type transformer and intelligent heat dissipation control system thereof |
-
2017
- 2017-10-17 CN CN201721336094.5U patent/CN207441417U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110942885A (en) * | 2019-11-26 | 2020-03-31 | 安徽中变变压器有限公司 | Transformer capable of circularly radiating |
| CN111755212A (en) * | 2020-08-05 | 2020-10-09 | 滁州先奇工业科技有限公司 | Transformer with heat conduction and radiation structure |
| CN113314305A (en) * | 2021-05-27 | 2021-08-27 | 河南安益达电工有限公司 | Box-type transformer and intelligent heat dissipation control system thereof |
| CN113314305B (en) * | 2021-05-27 | 2023-07-21 | 河南安益达电工有限公司 | Box transformer and intelligent heat dissipation control system thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Ni Jiabin Inventor before: Yang Wendi |
|
| CB03 | Change of inventor or designer information | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180528 Address after: 154002 room 220, Department building, Department of apparatus, First Affiliated Hospital of Jiamusi University, Jiamusi, Heilongjiang (348, des Cheung Road) Patentee after: Ni Jiabin Address before: 466331 Daxingzhuang new street, Daxingzhuang Township, Shenqiu County, Zhoukou, Henan, China Patentee before: Yang Wendi |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180601 Termination date: 20191017 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |