CN208571567U - A kind of fire-resisting cable intermediate joint device - Google Patents
A kind of fire-resisting cable intermediate joint device Download PDFInfo
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- CN208571567U CN208571567U CN201821301328.7U CN201821301328U CN208571567U CN 208571567 U CN208571567 U CN 208571567U CN 201821301328 U CN201821301328 U CN 201821301328U CN 208571567 U CN208571567 U CN 208571567U
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Abstract
The utility model discloses a kind of fire-resisting cable intermediate joint devices, including cladding refractory outer cover component, the fire resistant infilling of self-curing fluidised form, composite shielding net, Ceramic silicon rubber fluidised form insulating packing, copper connecting tube, fire-resisting cable；Fire-resisting cable pierces into the hole of end deduction cap, is sealed by sealing ring；Conductor is fastenedly connected by copper connecting tube or joint made by flame welding；Ceramic silicon rubber fluidised form insulating packing fills up the gap of insulation filling pipe, insulating layer end and copper connecting tube；Conductor tieing section, insulating layer end and copper connecting tube are wrapped up and are insulated by insulation filling pipe；Gauze screen shrouds the end of conductor tieing, fluidised form insulating packing, insulation filling pipe, copper connecting tube and insulating layer；The inner cavity of casing assembly is injected in self-curing fluidised form fire resistant infilling, and the gap of cylinder, gauze screen, cable is filled up and solidified and is integral.950 DEG C or more high temperature can be resistant to, guarantee that rigidity, the fire fighting device fault-free power-on time of Initial Stage of Fire structural member continue 180min or more.
Description
Technical field
The utility model belongs to designing and manufacturing for fire-resisting cable attachment, and in particular to a kind of fire-resisting cable transition joint dress
It sets.
Background technique
When fire-resisting cable is applied to the emergency fire-fighting power supply system such as skyscraper, urban operating mechanism, bridge, tunnel, engineering
Related trunk formula is powered transition joint in structure, be all made of cable T knot coupling box, cablehead, prefabricated branch cable or
Cable connection box transition connection.Wherein used insulating materials has two major classes: first is that inorganic material class, including mica tape, cloud
Any one or assembly of female powder product, ceramic member or magnesia powder filler and metalwork；Second is that high molecular material class, including
Polycarbonate, polyester film, heat-shrink tube, 122 band of crosslinking, 4M are crosslinked any one of band and other polyester materials or combine
Body.However, these inorganic material, due to itself hygroscopic dampness, thus cannot be guaranteed good electrical insulation properties；These are high
Molecular material, though its good heat-resisting rated temperature of insulation performance is lower.Moreover, trunk formula power supply transition joint structure is not only
Shaft space occupation is big, and waterproof and fire resistance is poor, connector is exposed oxidizable, causes bolt looseness terminal to generate heat, resistance
Increase, current-carrying capacity reduces, generally 150 DEG C of heat-resisting rated temperature hereinafter, and the anti-flammabilitys of some components can only achieve
GB/T 3206.3, GB/T 3208, GB/T 5169.16 or UL 92V0Standard is even lower, and it is resistance to that GB 8632-3006 is not achieved
The A grade requirement of fire design, can not meet 950 DEG C of at least requirements of 180min of heatproof.
In these above-mentioned structures, wherein prefabricated branch cable connector is the product that skyscraper is widely used, it be by
A kind of completed knocked down products that multiple accessories are combined into, it is necessary in advance at the scene measure after made to factory, there are it is many it is unfavorable, can not
By factor:
Dimensional discrepancy is limited, fabrication cycle is long, packed and transported trouble, in-site installation equipment apply and opens difficulty, specially to lift
Equipment, every floor plate perforated area be big, prefabricated branch cable connector is easy to damage, and needs more people's cooperations, when installation fee, takes
Work.
Therefore, if to ensure that fire-resisting cable transition joint attachment meets Current Building ' electric fireproof specification, meet heatproof
950 DEG C of at least requirements of 180min, it is desirable to which better material designs the fire-resisting cable combined with more reasonable new construction
Intermediate joint device replaces.Although fire-resisting cable transition joint attachment is not new concept, fire resisting new material is made pottery
Porcelain SiClx rubber is combined with the design of fire-resisting cable intermediate joint device new construction, and it is preferably resistance to assign cable intermediate joint device
Fiery performance is to extend the time of normal power supply and technological innovation under fire hazard environment.
Summary of the invention
The purpose of this utility model is to provide in a kind of fire-resisting cable for meeting Current Building ' electric fireproof specification indirectly
Head device keeps cable that can continue under fire hazard environment with fault-free longer to meet 950 DEG C of at least requirements of 180min of heatproof
Power-on time.
In order to achieve the above object, a kind of fire-resisting cable intermediate joint device of the utility model, comprising: cladding refractory outer cover group
Part, the fire resistant infilling of self-curing fluidised form, composite shielding net, Ceramic silicon rubber fluidised form insulating packing, copper connecting tube, fire-resisting cable；
The fire-resisting cable pierces into the hole of end deduction cap from the both ends of cladding refractory outer cover component, and close by end deduction cap and sealing ring enhancing
Envelope；The conductor of the fire-resisting cable is fastenedly connected conducting by copper connecting tube or joint made by flame welding；The Ceramic silicon rubber fluidised form is exhausted
Edge filler fills up the gap between prefabricated hot-face insulation filling pipe, insulating layer end and copper connecting tube；The prefabricated fire resisting is exhausted
Edge, which fills pipe, makes itself and external insulation for cable conductor tieing section, insulating layer end and copper connecting tube package；The composite shielding
Conductor tieing, Ceramic silicon rubber fluidised form insulating packing, prefabricated hot-face insulation are filled pipe, copper connecting tube and insulating layer by net
End is shrouded, and is connected with cable shield；The inner cavity of the self-curing fluidised form fire resistant infilling injection cladding refractory outer cover component,
The gap of the cylinder of cladding refractory outer cover component, composite shielding net, fire-resisting cable is filled up and solidified and is integral.
Further, the cladding refractory outer cover component further include: end deduction cap, sealing ring, staving, injection port, exhaust outlet,
Fill discharger and dilatancy ceramic thermal insulation layer；The end deduction cap passes through the coaxially connected fixation in both ends of screw thread and staving, close
Seal is located in the gap between end deduction cap and staving, can deform or expands when being squeezed by end deduction cap, fill up respectively staving with
It holds the gap of deduction cap, hold the gap of deduction cap and fire-resisting cable outer diameter；The injection port and exhaust outlet are located at the both ends of staving,
And it is not interfered with each other with end deduction cap staggered positions；The discharger that fills passes through screw thread and the coaxially connected fixation of exhaust outlet；It is described swollen
Swollen property ceramic thermal insulation layer is covered on end deduction cap, staving, injection port, exhaust outlet, fills discharger in appearance, in service state
Lower thermal coefficient is greater than 0.8W/ (m.K), coating layer thickness between (1.0-4.0) mm, applies under 600 DEG C or more or fire hazard environment
Thickness degree may expand to 30 times or more, becomes foamed ceramics and thermal coefficient is then reduced to 0.10W/ (m.K) below.
Further, the self-curing fluidised form fire resistant infilling further include: one-component class, two-component class or three groups of classification room temperature
Any one of cured Ceramic silicon rubber slurry, ceramic unsaturated polyester resin slurry, by pressure injection in end seal
Good cladding refractory outer cover component it is intracavitary, self-curing is whole closely knit refractory insulating material at room temperature, is not only significantly improved
Waterproof, anti-corrosion, fire prevention and the reliability of insulation, and ceramic-insulated integrated member is converted at a temperature of fire hazard environment.
Further, the composite shielding net further include: metal mesh compartment, wire braid and conductive filler and expansion
Any one of type Ceramic silicon rubber composite layer, and be by the pipe fitting of calendering formation, cage body, barrel-shaped or shape for hat material any
It is a kind of；The conductive filler includes any one or assembly of the short silk of metal, metal powder, conductive carbon powder and conductive carbon fibre.
Further, the prefabricated hot-face insulation filling pipe further include: first pre- in factory with Ceramic silicon rubber insulating cement
Curing molding processed is sleeve member or collar member, guarantees precision with size from prefabricated mould, under fire hazard environment or temperature exists
Hard ceramic insulating materials is converted into 600 DEG C or more of environment.
Further, the Ceramic silicon rubber fluidised form insulating packing selection selection one-component class, two-component class or three groups
The Ceramic silicon rubber slurry of classification normal temperature cure.
Further, the copper connecting tube is standard component or the open loop by T3 cathode copper through pyrolytic semlting pultrusion roll forming
Any one of copper pipe；The joint made by flame welding is tin plating or silver-plated metal or alloy.
Further, the fire-resisting cable further include: conductor, insulating layer, cable shield, oxygen barrier flame retardant coating and fire-retardant shield
Jacket layer；The insulating layer is coated on the appearance of conductor, and cable shield is coated on the appearance of insulating layer, and oxygen barrier flame retardant coating is coated on
The appearance of cable shield, flame retardant sheath layer are coated on the appearance of oxygen barrier flame retardant coating；The flame retardant sheath layer is poly- using ceramic
Alkene extruding layer.
A kind of fire-resisting cable intermediate joint device of the utility model, cladding refractory outer cover component, self-curing fluidised form is resistance to
Fiery filler, composite shielding net, prefabricated hot-face insulation filling pipe, fire-resisting cable are integrated as a kind of new design, and its advantages exist
In:
1. using intumescent ceramic composite layer Design on thermal insulation, 950 DEG C of tolerance or more high temperature guarantees Initial Stage of Fire structural member
Rigidity, fire fighting device fault-free power-on time continue 180min or more；
2. ensuring cable connector waterproof, anti-corrosion, resistance to height under Service Environment using fluidised form filling integrally curing structure design
Mild insulating reliability；
3. this fire-resisting cable intermediate joint device is small in size, occupancy space is small, and installation is intermediate convenient, fast；
4. insulating body using pre-formed ceramic, guarantee dimensional accuracy, compact-sized, in-site installation is high-efficient, easily
In seriation, standardization, mass production.
Detailed description of the invention
Fig. 1 is the planing surface schematic diagram of the utility model fire-resisting cable intermediate joint device embodiment.
Fig. 2 is the planing surface schematic diagram of cladding refractory outer cover component in Fig. 1
Fig. 3 is the conductor of fire-resisting cable and the pincers of connecting tube pressure positioning cross-sectional view in Fig. 1.
Fig. 4 is the conductor tab of fire-resisting cable in Fig. 1, Ceramic silicon rubber fluidised form insulating packing and composite shielding net connection
Cross-sectional view.
In Fig. 1 to Fig. 4, identical function, mutually isostructural part use identical label, in order to which drawing is succinct and omits
Go the piece mark on symmetrical or identical serial position.
1-end deduction cap, 2-sealing rings, 3-stavings,
4-self-curing fluidised form fire resistant infillings, 5-composite shielding nets, 6-Ceramic silicon rubber fluidised form insulating packings,
7-prefabricated hot-face insulation filling pipes, 8-copper connecting tubes, 9-conductors,
10-insulating layers, 11-cable shields, 12-oxygen barrier flame retardant coatings,
13-flame retardant sheath layers, 14-injection ports, 15-exhaust outlets,
16-fill discharger, 17-fire-resisting cables, 100-cladding refractory outer cover components.
Specific embodiment
By be described in detail a kind of technology contents of fire-resisting cable intermediate joint device of the utility model, construction feature, reality
Existing purpose and effect, with reference to embodiments and its attached drawing further illustrates.
As shown in Figures 1 to 4, a kind of one embodiment of fire-resisting cable intermediate joint device of the utility model is disclosed,
It include: cladding refractory outer cover component 100, self-curing fluidised form fire resistant infilling 4, composite shielding net 5, the insulation of Ceramic silicon rubber fluidised form
Filler 6, copper connecting tube 8, fire-resisting cable 17；Fire-resisting cable 17 pierces into end deduction cap 1 from the both ends of cladding refractory outer cover component 100
Hole, and by end deduction cap 1 and the enhancing sealing of sealing ring 2；The conductor 9 of fire-resisting cable 17 is fastenedly connected conducting by copper connecting tube 8；Pottery
Between porcelain SiClx rubber fluidised form insulating packing 6 fills prefabricated hot-face insulation between pipe 7,10 end of insulating layer and copper connecting tube 8
Gap is filled up；Prefabricated hot-face insulation filling pipe 7 by 9 tieing section of cable conductor, 10 end of insulating layer and copper connecting tube 8 package make its with
External insulation；Composite shielding net 5 manages 9 tieing of conductor, Ceramic silicon rubber fluidised form insulating packing 6, the filling of prefabricated hot-face insulation
7, the end of copper connecting tube 8 and insulating layer 10 is shrouded, and is connected with cable shield 11；Self-curing fluidised form fire resistant infilling 4 by
Special syringe injects the inner cavity on cladding refractory outer cover component 100, by the cylinder 3 of cladding refractory outer cover component 100, combined screen
Cover net 5, the gap of fire-resisting cable 17 is filled up and solidified and is integral.
As shown in Fig. 2, cladding refractory outer cover component 100 further include: end deduction cap 1, sealing ring 2, staving 3, injection port 14, row
Port 15 fills discharger 16 and dilatancy ceramic thermal insulation layer；Hold deduction cap 1 coaxially connected by the both ends of screw thread and staving 3
Fixed, sealing ring 2 is located in the gap between end deduction cap 1 and staving 3, can deform when being squeezed by end deduction cap 1, while filling up bucket
The gap of body 3 and end deduction cap 1, the gap for holding deduction cap 1 and 17 outer diameter of fire-resisting cable；Injection port 14 and exhaust outlet 15 are located at bucket
The both ends of body 3, and do not interfered with each other with end 1 staggered positions of deduction cap；It is coaxially connected by screw thread and exhaust outlet 15 to fill discharger 16
It is fixed；Dilatancy ceramic insulating moulding coating is covered on end deduction cap 1, staving 3, injection port 14, exhaust outlet 15, fills discharger 16
In appearance, it is greater than 0.8W/ (m.K), coating layer thickness between (2.2 ± 0.3) mm in thermal coefficient under service state, at 600 DEG C
Coating layer thickness may expand to 30 times or more above or under fire hazard environment, becomes foamed ceramics and thermal coefficient is then reduced to 0.10W/
(m.K) below.
Wherein, self-curing fluidised form fire resistant infilling 4 further include: one-component class, two-component class or three groups of classification normal temperature cures
Any one of Ceramic silicon rubber slurry, ceramic unsaturated polyester resin slurry are answered by pressure injection end seal is good
Layer refractory outer cover component 100 it is intracavitary, self-curing is whole closely knit refractory insulating material at room temperature, is not only significantly improved anti-
Water, anti-corrosion, fire prevention and the reliability of insulation, and ceramic-insulated integrated member is converted at a temperature of fire hazard environment.
Wherein, composite shielding net 5 is wire braid, and is by molding cage body profile.
As shown in Figure 1 and Figure 4, prefabricated hot-face insulation fills pipe 7 further include: with Ceramic silicon rubber insulating cement first in factory
Prefabricated curing molding be sleeve member, from prefabricated mould guarantee size with precision, under fire hazard environment or temperature 600 DEG C with
On environment in be converted into hard ceramic insulating materials.
Wherein, Ceramic silicon rubber fluidised form insulating packing 6 selects the Ceramic silicon rubber slurry of one-component normal temperature cure
Material.
Wherein, copper connecting tube 8 is open loop copper pipe of the T2 cathode copper through pyrolytic semlting pultrusion roll forming.
As shown in figures 1 and 3, fire-resisting cable 17 further include: conductor 9, insulating layer 10, cable shield 11, oxygen barrier fire resisting
Layer 12 and flame retardant sheath layer 13；Insulating layer 10 is coated on the appearance of conductor 9, and cable shield 11 is coated on the outer of insulating layer 10
Table, oxygen barrier flame retardant coating 12 are coated on the appearance of cable shield 11, and flame retardant sheath layer 13 is coated on the appearance of oxygen barrier flame retardant coating 12,
Flame retardant sheath layer 13 uses ceramic polyolefin extruding layer.
A kind of fire-resisting cable intermediate joint device of the utility model, by cladding refractory outer cover component 100, self-curing fluidised form
Fire resistant infilling 4, composite shielding net 5, prefabricated hot-face insulation filling pipe 7, fire-resisting cable 17 are integrated as a kind of new design, beneficial
Effect is:
1. using intumescent ceramic composite layer Design on thermal insulation, 950 DEG C of tolerance or more high temperature guarantees Initial Stage of Fire structural member
Rigidity, fire fighting device fault-free power-on time continue 180min or more；
2. ensuring cable connector waterproof, anti-corrosion, resistance to height under Service Environment using fluidised form filling integrally curing structure design
Mild insulating reliability；
3. this fire-resisting cable intermediate joint device is small in size, occupancy space is small, and installation is intermediate convenient, fast；
4. insulating body using pre-formed ceramic, guarantee dimensional accuracy, compact-sized, in-site installation is high-efficient, easily
In seriation, standardization, mass production.
Claims (7)
1. a kind of fire-resisting cable intermediate joint device, characterized by comprising: cladding refractory outer cover component, self-curing fluidised form fire resisting
Filler, composite shielding net, Ceramic silicon rubber fluidised form insulating packing, copper connecting tube, fire-resisting cable；The fire-resisting cable is from cladding
The hole of end deduction cap is pierced at the both ends of refractory outer cover component, and by end deduction cap and sealing ring enhancing sealing；The fire-resisting cable
Conductor is fastenedly connected conducting by copper connecting tube or joint made by flame welding；The Ceramic silicon rubber fluidised form insulating packing is exhausted by prefabricated fire resisting
Gap between edge filling pipe, insulating layer end and copper connecting tube is filled up；The prefabricated hot-face insulation fills pipe for cable conductor
Tieing section, insulating layer end and copper connecting tube package make itself and external insulation；The composite shielding net is by conductor tieing, ceramic
The end that silicon rubber fluidised form insulating packing, prefabricated hot-face insulation fill pipe, copper connecting tube and insulating layer is shrouded, and and cable screens
Cover layer conducting；The inner cavity of the self-curing fluidised form fire resistant infilling injection cladding refractory outer cover component, by cladding refractory outer cover component
Cylinder, composite shielding net, fire-resisting cable gap fill up and solidify and be integral.
2. fire-resisting cable intermediate joint device according to claim 1, it is characterised in that: the cladding refractory outer cover component
Further include: end deduction cap, staving, injection port, exhaust outlet, fills discharger and dilatancy ceramic thermal insulation layer at sealing ring；The end
Deduction cap passes through the coaxially connected fixation in both ends of screw thread and staving, and sealing ring is located in the gap between end deduction cap and staving, by
End deduction cap can be deformed or be expanded when squeezing, and be filled up between staving and gap, end deduction cap and the fire-resisting cable outer diameter of holding deduction cap respectively
Gap；The injection port and exhaust outlet are located at the both ends of staving, and do not interfere with each other with end deduction cap staggered positions；It is described fill it is excessive
Outlet pipe passes through screw thread and the coaxially connected fixation of exhaust outlet；The dilatancy ceramic thermal insulation layer is covered on end deduction cap, staving, injection
Mouth, fills discharger in appearance at exhaust outlet, and thermal coefficient is greater than 0.8W/ (m.K) under service state, coating layer thickness exists
Between (1.0-4.0) mm, coating layer thickness may expand to 30 times or more under 600 DEG C or more or fire hazard environment, become foamed ceramics
And thermal coefficient is then reduced to 0.10W/ (mK) below.
3. fire-resisting cable intermediate joint device according to claim 1, it is characterised in that: the self-curing fluidised form fire resisting is filled out
Material further include: one-component class, the Ceramic silicon rubber slurry of two-component class or three groups of classification normal temperature cures, ceramic unsaturation are poly-
Any one of ester resin slurry, by pressure injection in the intracavitary of the good cladding refractory outer cover component of end seal, at room temperature from solid
Whole closely knit refractory insulating material is turned to, not only significantly improves waterproof, anti-corrosion, fire prevention and the reliability of insulation, but also in fire
Ceramic-insulated integrated member is converted under calamity environment temperature.
4. fire-resisting cable intermediate joint device according to claim 1, it is characterised in that: the composite shielding net also wraps
It includes: any one of metal mesh compartment, wire braid and conductive filler and intumescent Ceramic silicon rubber composite layer, and be
By the pipe fitting of calendering formation, cage body, it is barrel-shaped or shape for hat material any one；The conductive filler includes the short silk of metal, metal
Any one or assembly of powder, conductive carbon powder and conductive carbon fibre.
5. fire-resisting cable intermediate joint device according to claim 1, it is characterised in that: the prefabricated hot-face insulation filling
Pipe further include: with the Ceramic silicon rubber insulating cement curing molding that is first prefabricated in the factory be sleeve member or collar member, by prefabricated mould
The cooperation precision for guaranteeing size, under fire hazard environment or temperature that hard ceramic is converted into 600 DEG C or more of environment is exhausted
Edge material.
6. fire-resisting cable intermediate joint device according to claim 1, it is characterised in that: the Ceramic silicon rubber fluidised form
Insulating packing selects one-component class, two-component class or the Ceramic silicon rubber slurry of three groups of classification normal temperature cures.
7. fire-resisting cable intermediate joint device according to claim 1, it is characterised in that: the fire-resisting cable further include:
Conductor, insulating layer, cable shield, oxygen barrier flame retardant coating and flame retardant sheath layer；The insulating layer is coated on the appearance of conductor, cable
Shielded layer is coated on the appearance of insulating layer, and oxygen barrier flame retardant coating is coated on the appearance of cable shield, flame retardant sheath layer be coated on every
The appearance of oxygen flame retardant coating；The flame retardant sheath layer uses ceramic polyolefin extruding layer.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201821301328.7U CN208571567U (en) | 2018-08-13 | 2018-08-13 | A kind of fire-resisting cable intermediate joint device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821301328.7U CN208571567U (en) | 2018-08-13 | 2018-08-13 | A kind of fire-resisting cable intermediate joint device |
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| CN208571567U true CN208571567U (en) | 2019-03-01 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110034424A (en) * | 2019-03-26 | 2019-07-19 | 武汉船用机械有限责任公司 | Cable connection assembly and method |
| CN110649559A (en) * | 2019-09-30 | 2020-01-03 | 江苏华侃核电器材科技有限公司 | High-temperature-resistant flexible fireproof cable intermediate joint |
| CN112397248A (en) * | 2020-10-12 | 2021-02-23 | 居盛文 | Self-cooling power cable |
| CN112993881A (en) * | 2021-03-16 | 2021-06-18 | 国家电网有限公司 | Wire joint insulation processing device |
| CN114709765A (en) * | 2022-04-06 | 2022-07-05 | 广州市机电安装有限公司 | High-voltage cable transfer connection construction method |
-
2018
- 2018-08-13 CN CN201821301328.7U patent/CN208571567U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110034424A (en) * | 2019-03-26 | 2019-07-19 | 武汉船用机械有限责任公司 | Cable connection assembly and method |
| CN110649559A (en) * | 2019-09-30 | 2020-01-03 | 江苏华侃核电器材科技有限公司 | High-temperature-resistant flexible fireproof cable intermediate joint |
| CN112397248A (en) * | 2020-10-12 | 2021-02-23 | 居盛文 | Self-cooling power cable |
| CN112993881A (en) * | 2021-03-16 | 2021-06-18 | 国家电网有限公司 | Wire joint insulation processing device |
| CN114709765A (en) * | 2022-04-06 | 2022-07-05 | 广州市机电安装有限公司 | High-voltage cable transfer connection construction method |
| CN114709765B (en) * | 2022-04-06 | 2023-01-06 | 广州市机电安装有限公司 | High-voltage cable transfer connection construction method |
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Effective date of registration: 20210705 Address after: 518118 Wool Industrial Park, Lanjing North Road, Longtian Street, Pingshan District, Shenzhen City, Guangdong Province Patentee after: Shenzhen Woer Heat-shrinkable Material Co.,Ltd. Patentee after: SHENZHEN WOER NEW ENERGY ELECTRICAL TECHNOLOGY Co.,Ltd. Patentee after: CHANGZHOU WOER HEAT-SHRINKABLE MATERIAL Co.,Ltd. Address before: 518118 Vol Industrial Park, Lanjingbei Road, Pingshan District, Shenzhen City, Guangdong Province Patentee before: Shenzhen Woer Heat-shrinkable Material Co.,Ltd. Patentee before: SHENZHEN WOER NEW ENERGY ELECTRICAL TECHNOLOGY Co.,Ltd. Patentee before: SHENZHEN WOER SPECIAL CABLE Co.,Ltd. Patentee before: CHANGZHOU WOER HEAT-SHRINKABLE MATERIAL Co.,Ltd. Patentee before: LTK ELECTRIC WIRE (HUIZHOU) Ltd. Patentee before: HUIZHOU LTK ELECTRONIC CABLE Co.,Ltd. |
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Effective date of registration: 20230806 Address after: 518000 Wall Industrial Park, Lanjing North Road, Longtian street, Pingshan District, Shenzhen City, Guangdong Province Patentee after: Shenzhen Woer Heat-shrinkable Material Co.,Ltd. Patentee after: CHANGZHOU WOER HEAT-SHRINKABLE MATERIAL Co.,Ltd. Address before: 518118 Wool Industrial Park, Lanjing North Road, Longtian Street, Pingshan District, Shenzhen City, Guangdong Province Patentee before: Shenzhen Woer Heat-shrinkable Material Co.,Ltd. Patentee before: SHENZHEN WOER NEW ENERGY ELECTRICAL TECHNOLOGY Co.,Ltd. Patentee before: CHANGZHOU WOER HEAT-SHRINKABLE MATERIAL Co.,Ltd. |