CN208489376U - A kind of sealing device and central control system of middle control circuit board - Google Patents
A kind of sealing device and central control system of middle control circuit board Download PDFInfo
- Publication number
- CN208489376U CN208489376U CN201820532884.9U CN201820532884U CN208489376U CN 208489376 U CN208489376 U CN 208489376U CN 201820532884 U CN201820532884 U CN 201820532884U CN 208489376 U CN208489376 U CN 208489376U
- Authority
- CN
- China
- Prior art keywords
- circuit board
- battery
- control circuit
- middle control
- sealing cover
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 119
- 239000000084 colloidal system Substances 0.000 claims abstract description 20
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 7
- 239000003822 epoxy resin Substances 0.000 claims description 5
- 229920000647 polyepoxide Polymers 0.000 claims description 5
- 239000000741 silica gel Substances 0.000 claims description 3
- 229910002027 silica gel Inorganic materials 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 11
- 230000000694 effects Effects 0.000 abstract description 10
- 238000000034 method Methods 0.000 description 6
- 230000005611 electricity Effects 0.000 description 4
- 238000009413 insulation Methods 0.000 description 3
- 239000000565 sealant Substances 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000011017 operating method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000012945 sealing adhesive Substances 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000004078 waterproofing Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Battery Mounting, Suspending (AREA)
Abstract
The utility model discloses sealing devices and central control system that circuit board is controlled in one kind, wherein, the middle control circuit board includes circuit board body and the battery inserted sheet that two opposing circuit plate bodys are vertically fixedly installed, the sealing device includes sealing cover and battery baffle, sealing cover perforation corresponding with the battery inserted sheet and baffle perforation are respectively formed on the sealing cover and the battery baffle, the sealing cover is at least perforated, and ring week region is Nian Jie with the middle control circuit board, and the battery baffle is set on the battery inserted sheet and Nian Jie with sealing cover.Battery and middle control circuit board are isolated with sealing cover for the utility model, and circuit board is sealed, sealed colloid is smeared on circuit board and battery inserted sheet, realize the effect of dual-seal, it is sealed using the gap between battery baffle centering control circuit board and battery inserted sheet, avoids battery from bringing water droplet into along the entrance of battery inserted sheet in disassembly and control on circuit board.
Description
Technical field
The utility model belongs to underwater self-service submarine device technical field, and in particular to the sealing device of circuit board is controlled in one kind
And central control system.
Background technique
The propeller control system of underwater self-service submarine device needs to be sealed in the process of running, wants with waterproof
It asks, wherein include battery and middle control circuit board in the propeller control system of underwater self-service submarine device, wherein middle control circuit
Plate and battery are separately positioned in two relatively independent chambers and keep leakproofness, but middle control circuit board needs and battery electricity
Connection, this results in junction, and there are some gaps, and the power supply of entire propeller control system and circuit board is made to there are many peaces
Full hidden danger, and entire propeller control system groundwork is under water, but for the seam between battery and middle control circuit board
Effective Lock gate and Improving ways are not done at gap and electrical connection yet, it is underwater self-service latent for what is worked under water in this way
The propeller control system of ship device brings very big hidden danger.
The above-mentioned prior art has the following disadvantages；
1, directly connect between the battery and middle control circuit board in the propeller control system of existing underwater autonomous submarine device
It connects and does not take effective waterproof measure；
2, very big security risk is caused to the entire system.
Utility model content
The purpose of the utility model is to overcome the deficiencies in the prior art, provide in one kind control circuit board sealing device and
Central control system.
The utility model is achieved through the following technical solutions:
A kind of sealing device of middle control circuit board, the middle control circuit board includes circuit board body and two opposing circuit plate bodys
The battery inserted sheet being vertically fixedly installed, the sealing device include sealing cover and battery baffle, the sealing cover and described
Battery baffle on be respectively formed with the perforation of corresponding with battery inserted sheet sealing cover and baffle is perforated, the sealing cover
At least perforation ring week region it is Nian Jie with the middle control circuit board, the battery baffle be set on described in battery inserted sheet on and
It is Nian Jie with sealing cover.
In the above-mentioned technical solutions, sealant is provided between baffle perforation and the bottom end of the battery inserted sheet
Body.
In the above-mentioned technical solutions, the battery baffle is that there are two a piece of of baffle perforation, or difference for setting
It is provided with the two panels of a baffle perforation.
In the above-mentioned technical solutions, the sealed colloid that the bonding uses is epoxy resin dope, the sealant
Body is epoxy resin dope.
In the above-mentioned technical solutions, the sealing cover is silica gel material, and the battery baffle is PVC material.
A kind of central control system of the sealing device with middle control circuit board, further includes being provided with and the battery inserted sheet pair
The battery for the power supply interface answered, being formed on the sealing cover allows the battery end to match the cavity being inserted.
In the above-mentioned technical solutions, the closing bulge loop to battery side protrusion, the envelope are provided on the sealing cover
It closes bulge loop and constitutes the cavity.
In the above-mentioned technical solutions, it is formed between the sealing cover and the middle control circuit board on the outside of the closing bulge loop
There is gapping interval, is bonded between the bottom surface of the cavity and the middle control circuit board by sealed colloid.
In the above-mentioned technical solutions, the sealing is placed on the outside of the closing bulge loop and is provided with annular ditch, described
The silica gel ring for making itself and the cell sealing to closing bulge loop described in banding is provided in annular ditch.
In the above-mentioned technical solutions, it is provided in the sealing bezel ring, week and the middle control circuit board is accommodated into side therein
Ring side is formed with the seal groove to be embedded in O-ring on the outside of the side ring side.
It the advantages of the utility model and has the beneficial effect that
1, the sealing device of the middle control circuit board of the utility model is directly inserted using battery and circuit board by battery inserted sheet
The mode pulled out, structure is simple, easy to operate, and avoids hidden danger caused by electric wire connection, and the utility model is with close
Battery and middle control circuit board are isolated for capping, and are sealed to circuit board, are smeared on circuit board and battery inserted sheet close
Adhesive body realizes the effect of dual-seal, is carried out using the gap between battery baffle centering control circuit board and battery inserted sheet
Sealing avoids battery from bringing water droplet into along the entrance of battery inserted sheet in disassembly and controls on circuit board.
2, the central control system of the sealing device of the middle control circuit board of the middle control circuit board of the utility model, will be electric using shell
Pond and middle control circuit boards are independent in space, it is therefore prevented that when the system works under water, water is leak into shell, to battery
It causes damages on middle control circuit board, is provided with the cavity for capableing of placing battery in the utility model on sealing cover, the cavity
It is used cooperatively with closing bulge loop, realizes the fixation to battery end and the sealing to battery and battery blade contact position.
3, the sealing device and its encapsulating method of the middle control circuit board of the utility model, operating method is simple, easy to loading and unloading.
Detailed description of the invention
Fig. 1 is that the sealing device of circuit board and its structural schematic diagram of method are controlled in the utility model one kind.
Wherein:
1: sealing cover, 2: cavity, 3: middle control circuit board, 4, battery inserted sheet, 5: battery baffle, 6: closing bulge loop, 7: annular
Ditch, 8: seal groove.
It for those of ordinary skill in the art, without creative efforts, can be according to above attached
Figure obtains other relevant drawings.
Specific embodiment
In order to make those skilled in the art better understand the scheme of the utility model, with reference to the accompanying drawing 1 and specific real
It applies example and further illustrates the technical solution of the utility model.
Embodiment one
As shown in Figure 1, controlling the sealing device of circuit board in one kind, there are two its opposite vertical fixations to set for middle control circuit board 3
The battery inserted sheet 5 set, sealing device include sealing cover 1 and battery baffle 5, be respectively formed on sealing cover 1 and battery baffle 5 with
The perforation of the corresponding sealing cover of battery inserted sheet 5 and baffle perforation, at least perforate ring week region and the middle control circuit board 3 of sealing cover 1 glue
It connects, battery baffle 5 is set on battery inserted sheet 4 and Nian Jie with sealing cover 1.
The sealing device of the middle control circuit board of the utility model is packed on middle control circuit board, directly using battery inserted sheet
Battery and circuit board are connected in a manner of plug, easy to operate, structure is simple, and avoids dangerous caused by electric wire connection
Hidden danger, battery and middle control circuit board are isolated using sealing cover for the present apparatus, and centering control circuit board is sealed, and is avoided
Security risk caused by sealing cover and middle control circuit board directly contact, smears sealant on middle control circuit board and battery inserted sheet
Body, and it is pasted onto sealing cover on middle control circuit board, play the effect of dual-seal, wherein paste using battery baffle
It on sealing cover, not only realizes centering control circuit board and completely seals, but also decoration masks battery inserted sheet and middle control circuit
Soldering opening between plate.
Further, battery inserted sheet 4 divide for anode and cathode and be each passed through sealing cover perforation, the bottom of battery inserted sheet 4 and
Uniform sealed colloid is smeared in the battery inserted sheet ring week region of middle control circuit board 3, makes the bottom surface and middle control circuit board of sealing cover 1
3 are sealing adhesive, and press sealing cover 1, overflow sealed colloid along sealing cover perforation, and then, battery washer 5 is sleeved on battery and inserts
On piece 4, and battery baffle 5 is pressed, be bonded in it on upper surface of sealing cover 1, wherein battery baffle 5 is two baffles
Perforation it is a piece of or for be respectively arranged with a baffle perforation two panels, when for a piece of setting, convenient for clean extruding battery
The extra sealed colloid overflowed when baffle 5, and be easily installed on battery inserted sheet 4, when being arranged using two panels, can facilitate
Generated when battery baffle 5 is pasted on sealing cover bubble discharge.
Further, sealed colloid is epoxy resin dope, and sealing cover 1 is silica gel material, and this material has certain
Power, excellent insulating properties, pressure resistance, high temperature resistant and low temperature resistant, not soluble in water and any solvent are safe and convenient to use, being capable of centering
Play the role of insulation protection between control circuit board 3 and battery, battery baffle 5 is PVC material, there is excellent dielectric properties, energy
It is enough to play the role of good dielectric insulation to the lower end root of battery inserted sheet 5 and with battery contact position, realize double insulation
Effect.
Specific embodiment is smeared uniform on the lower end root of battery inserted sheet 5 and its middle control circuit board 3 in ring week region
Sealed colloid, sealing cover 1 are sleeved on battery inserted sheet 5, and press sealing cover 1, and the bottom surface of sealing cover 1 is made to be pasted onto middle control
On circuit board 3, and sealed colloid is perforated along sealing cover and is overflowed, and then, battery baffle 5 is sleeved on battery by baffle perforation and inserts
On piece 4, by piezoelectric battery baffle 5, it is pasted onto it on upper surface of sealing cover 1.
Embodiment two
As shown in Figure 1, based on embodiment one, a kind of central control system of the sealing device of middle control circuit board further includes setting
It is equipped with the battery of power supply interface corresponding with battery inserted sheet 4, and battery is placed on battery inserted sheet 4 by way of directly plugging
And centering control circuit board 3 is powered, in addition, be provided with the closing bulge loop 6 to battery side protrusion on sealing cover 1, sealing cover 1 in
6 Inner Constitution cavity 2 of bulge loop is closed, sealing cover 1 is pasted on middle control circuit board 3 in the bottom surface of cavity 2, and battery end
It can match in insertion cavity 2.
The central control system of the sealing device of the middle control circuit board of the utility model is provided with cavity on sealing cover, facilitates electricity
Pond inserts on battery inserted sheet, and the bottom face paste of cavity is sticked on middle control circuit board, keeps battery inserted sheet and middle control circuit board solid
Surely the sealing effect located is more preferable, and the lower surface of the closing bulge loop on sealing cover and middle control circuit board form cavity, facilitates heat dissipation, and
The cavity for capableing of placing battery is provided in the utility model on sealing cover, the cavity and closing bulge loop are used cooperatively, and are realized
Sealing to the fixation of battery end and to battery and battery blade contact position.
Further, it closes and forms cavity between the bottom surface and middle control circuit board 3 of the sealing cover 1 of bulge loop 6, convenient for middle control electricity
It radiates in 3 course of work of road plate.It is provided with annular ditch 7 on the sealing cover 1 in 6 outside of closing bulge loop, and in annular ditch 7
The silica gel ring for banding closing bulge loop 6 and cell sealing is provided on sealing cover 1, further, when battery is inserted into cavity 2
It is interior, silica gel ring is squeezed and is inserted in annular ditch 7, makes to close bulge loop 6 and battery extrusion and seal.
The central control system of the sealing device of the middle control circuit board of the utility model can squeeze dress silica gel ring in annular ditch, make electricity
Pond and cavity squeeze, and reduce the gap between battery and the side wall of cavity, are sealed to battery end, have reached better
The effect of sealing.
Further, middle control circuit board 3 and battery are arranged in shell, and sealing cover 1 is installed on shell, make middle control circuit
Plate 3 and battery independent isolating, in order to make middle control circuit board 3 and battery have better seal effect in shell, in sealing cover 1
It is provided in ring week for middle control circuit board 3 to be accommodated side ring side therein, wherein be formed on the outside of side ring side O-shaped for being embedded in
The seal groove 8 of circle has the middle top of control circuit board 3 to hold on the inside of the side ring side of sealing cover 1, the outside on side ring side and shell pass through O
Type circle squeezes contact, realizes the sealing of the junction of shell and middle control circuit board 3, has reached better seal effect.
The central control system of the sealing device of the middle control circuit board of the utility model uses shell by middle control circuit board and battery
Independent isolating makes middle control circuit board and battery work in an environment from interference, is protected by shell in central control system
Shield, it is therefore prevented that when the system works under water, there is water to be directly entered in control circuit board and battery, on battery and middle control circuit board
It causes damages, there is waterproofing protection, placed in the seal groove of sealing cover and squeeze O-ring, make shell and middle control circuit board
Between reached a better seal effect.
Embodiment three
As shown in Figure 1, based on embodiment two, a kind of central control system of the sealing device with middle control circuit board it is close
Encapsulation method, step include the following:
1) predetermined amount colloid is uniformly smeared on the lower end of battery inserted sheet and surrounding middle control circuit board；
2) sealing cover is sleeved on battery inserted sheet, and presses sealing cover；
3) sealing cover is sleeved on battery inserted sheet, by piezoelectric battery baffle；
4) battery is placed in cavity.
The encapsulating method operating method of the central control system of the sealing device of the middle control circuit board of the utility model is simple, handling
Convenient, wherein be sealed using sealing cover centering control circuit board, and sealing is placed on the bottom surface of cavity and is pasted onto middle control circuit
On plate, for controlling circuit board in dual-seal, when avoiding loading and unloading battery, there is water droplet to control circuit board along the entrance of battery inserted sheet
On.
Further, silica gel ring is sleeved in annular ditch 7, since silica gel ring has elasticity, is squeezed by suit silica gel ring
Bulge loop 6 is closed, is arranged in making cell sealing in cavity 2.
Specific embodiment squeezes into sealed colloid in syringe, wherein as the plastic emitting bore of syringe that uses for
The colloid of predetermined amount is uniformly applied on the lower end root and surrounding middle control circuit board 3 of battery inserted sheet 4 by 1.88mm, will
Sealing cover 1 is sleeved on battery inserted sheet 5, and presses sealing cover 1, so that sealed colloid is perforated along sealing cover 1 and is overflowed, makes sealing cover
The bottom surface of 1 cavity 2 and the stickup of middle 3 plate of control circuit, not only there is a sealed colloid in this way on battery inserted sheet 5, and sealing cover 1 in
It is also filled with sealed colloid between the bottom surface of cavity 2 and middle control circuit board 3, dual sealing effect is played, ensure that
When changeing battery, avoid water droplet enter along battery inserted sheet 5 in control circuit board 3 then worn in battery baffle 5 by baffle
Hole is set on battery inserted sheet 4, and is pasted on the upper surface of sealing cover 1 of cavity 2, by piezoelectric battery baffle 5, is had extra close
Adhesive body overflows, and strikes off battery baffle 5, and the extra sealed colloid scraped is clean, and battery is inserted into battery inserted sheet 4
On, it is placed in cavity 2, further, silica gel ring is squeezed and is covered in annular ditch 7, and the inner sidewall of banding annular ditch 7, squeeze envelope
Bulge loop 6 and battery are closed, cell sealing is made, O-ring is embedded in seal groove 8, then shell is buckled in seal groove 8, is made
Circuit board 3 and battery independent isolating are controlled in shell.
The spatially relative terms such as "upper", "lower", "left", "right" have been used in embodiment for ease of explanation, have been used for
Relationship of the elements or features relative to another elements or features shown in explanatory diagram.It should be understood that in addition to figure
Shown in except orientation, spatial terminology is intended to include the different direction of device in use or operation.For example, if in figure
Device be squeezed, the element for being stated as being located at other elements or feature "lower" will be located into other elements or feature "upper".
Therefore, exemplary term "lower" may include both upper and lower orientation.Device can be positioned in other ways (be rotated by 90 ° or
Positioned at other orientation), it can be interpreted accordingly used herein of the opposite explanation in space.
Moreover, the relational terms of such as " first " and " second " or the like are used merely to one with another with identical
The component of title distinguishes, without necessarily requiring or implying between these components there are any this actual relationship or
Sequentially.
Illustrative description has been done to the utility model above, it should explanation, in the core for not departing from the utility model
In the case where the heart, it is any it is simple deformation, modification or other skilled in the art can not spend creative work etc.
The protection scope of the utility model is each fallen with replacement.
Claims (10)
1. controlling the sealing device of circuit board in one kind, the middle control circuit board (3) includes circuit board body and two opposing circuit boards
The battery inserted sheet (4) that body is vertically fixedly installed, which is characterized in that the sealing device includes sealing cover (1) and battery baffle
(5), it is respectively formed on the sealing cover (1) and the battery baffle (5) corresponding close with battery inserted sheet (4)
Capping perforation and baffle perforation, at least perforate ring week region of the sealing cover (1) is Nian Jie with middle control circuit board (3),
The battery baffle (5) is set on the battery inserted sheet (4) and Nian Jie with sealing cover (1).
2. the sealing device of middle control circuit board according to claim 1, which is characterized in that the described baffle perforation with it is described
Battery inserted sheet (4) bottom end between be provided with sealed colloid.
3. the sealing device of middle control circuit board according to claim 1, which is characterized in that the battery baffle (5) is to set
Baffle perforation is a piece of there are two setting, or is respectively arranged with the two panels of a baffle perforation.
4. the sealing device of middle control circuit board according to claim 2, which is characterized in that the sealing that the bonding uses
Colloid is epoxy resin dope, and the sealed colloid is epoxy resin dope.
5. the sealing device of middle control circuit board according to claim 1, which is characterized in that the sealing cover (1) is silica gel
Material, the battery baffle are PVC material.
6. a kind of central control system of the sealing device with middle control circuit board as described in any one in claim 1-5, feature
It is, further includes the battery for being provided with power supply interface corresponding with battery inserted sheet (4), shape on the sealing cover (1)
At the cavity (2) for allowing the battery end matching to be inserted.
7. the central control system of the sealing device of middle control circuit board according to claim 6, which is characterized in that the sealing
The closing bulge loop (6) to battery side protrusion is provided on lid (1), the closing bulge loop (6) constitutes the cavity (2).
8. the central control system of the sealing device of middle control circuit board according to claim 7, which is characterized in that the closing is convex
It is formed with gapping interval between the sealing cover (1) and the middle control circuit board (3) on the outside of ring (6), the cavity (2)
It is bonded between bottom surface and the middle control circuit board (3) by sealed colloid.
9. the central control system of the sealing device of middle control circuit board according to claim 7, which is characterized in that the sealing
Lid (1) is provided with annular ditch (7) on the outside of the closing bulge loop (6), is provided in the annular ditch (7) to banding institute
The closing bulge loop (6) stated makes the silica gel ring of itself and the cell sealing.
10. the central control system of the sealing device of middle control circuit board according to claim 6, which is characterized in that described is close
Capping, which is provided in (1) ring week, accommodates side ring side therein for the middle control circuit board (3), and the outside on the side ring side is formed
There is the seal groove (8) to be embedded in O-ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820532884.9U CN208489376U (en) | 2018-04-13 | 2018-04-13 | A kind of sealing device and central control system of middle control circuit board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820532884.9U CN208489376U (en) | 2018-04-13 | 2018-04-13 | A kind of sealing device and central control system of middle control circuit board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208489376U true CN208489376U (en) | 2019-02-12 |
Family
ID=65252177
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820532884.9U Active CN208489376U (en) | 2018-04-13 | 2018-04-13 | A kind of sealing device and central control system of middle control circuit board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208489376U (en) |
-
2018
- 2018-04-13 CN CN201820532884.9U patent/CN208489376U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 300457 Tianjin Binhai New Area Tianjin Development Zone Muning road No.45 Jinbin development plant No.7 Patentee after: Shenzhen Blue Ocean Technology Co.,Ltd. Address before: 300457 Tianjin Binhai New Area Tianjin Development Zone Muning road No.45 Jinbin development plant No.7 Patentee before: Tianjin shenzhilan Marine Equipment Technology Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP03 | Change of name, title or address |
Address after: 300457 Tianjin Binhai New Area Tianjin Development Zone Muning road No.45 Jinbin development plant No.7 Patentee after: Tianjin shenzhilan Marine Equipment Technology Co.,Ltd. Address before: 300457 east part of the first floor of No.7 workshop of Jinbin development communication factory, No.45 Muning Road, Tianjin Development Zone, and the first and third floors of the East Office Patentee before: Tianjin Deepfar Ocean Technology Co.,Ltd. |
|
| CP03 | Change of name, title or address |