CN108712066A - A kind of crane brake power circuit - Google Patents
A kind of crane brake power circuit Download PDFInfo
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- CN108712066A CN108712066A CN201810781186.7A CN201810781186A CN108712066A CN 108712066 A CN108712066 A CN 108712066A CN 201810781186 A CN201810781186 A CN 201810781186A CN 108712066 A CN108712066 A CN 108712066A
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- power supply
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/14—Arrangements for reducing ripples from dc input or output
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/44—Circuits or arrangements for compensating for electromagnetic interference in converters or inverters
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Rectifiers (AREA)
Abstract
A kind of crane brake power circuit of the present invention comprising rectification circuit, the primary filter circuit for being connected to the rectification circuit outlet side, the secondary filter circuit for being connected to the primary filter circuit outlet side and the regulator circuit for being connected to the secondary filter circuit outlet side.Structure of the invention design is simple, reasonable, using filtering anti-jamming circuit Redundancy Design circuit, can effectively inhibit high frequency or noise harmonic wave caused by higher harmonics and electric network noise and Switching Power Supply, use is reliable and stable, strong antijamming capability.
Description
Technical field
The present invention relates to brake power circuit more particularly to a kind of crane brake power circuits.
Background technology
Crane brake device, especially three-in-one driving device partial brake device is that crane is related to safety index
Important electromechanical assembly.The stability and anti-interference of its power unit seriously affect braking ability and crane safety.
Currently, China's conventional crane brake power circuit, uses than more conservative transformer pressure-reducing, diode
Rectifier system.The stability and anti-interference of rectified voltage are very poor.As industry spot wireless device, frequency conversion equipment, high frequency are set
Various harmonic waves inside standby, special detection equipment increase and China's power grid, clutter are continuously increased, configuration conventional rectifier power supply
Crane brake device will less be used in these places.Its improper braking generated, malfunction, brake accuracy be not high,
It will carry out great hidden danger to the service life and safety belt of lifting equipment, or even cause the person and equipment injury.
Invention content
For the above-mentioned problems in the prior art, it is simple, reasonable that the present invention provides a kind of structure designs, using filter
Wave anti-jamming circuit Redundancy Design circuit, can effectively inhibit high frequency or noise caused by higher harmonics and electric network noise and Switching Power Supply
Harmonic wave, use is reliable and stable, the crane brake power circuit of strong antijamming capability.
Technical scheme is as follows：
Above-mentioned crane brake power circuit, including rectification circuit, be connected to the rectification circuit outlet side just
Grade filter circuit, the secondary filter circuit for being connected to the primary filter circuit outlet side and it is connected to the secondary filtered electrical
The regulator circuit of road outlet side.
The crane brake power circuit, wherein：The rectification circuit is by Transient Suppression Diode D1, switch resistance
R1 connects composition with bridge rectifier ZD；The anode tap of the Transient Suppression Diode D1 is grounded, and cathode terminal connects power supply V+；Institute
The one end switch resistance R1 ground connection is stated, the other end connects power supply V+；The positive rectification input terminal connection electricity of the bridge rectifier ZD
Source V+, cathode rectification input end grounding, two rectification output end connections primary filter circuit.
The crane brake power circuit, wherein：The primary filtered electrical routing resistance R4, capacitance C17, polarity electricity
Hold C6, EMC filter U1, capacitance C41 connects composition with voltage-stablizer K1；The capacitance C17 and polar capacitor C6 are parallel to successively
Between two rectification output ends of the bridge rectifier ZD；The one end the resistance R4 is connected to the capacitance C17 and bridge-type is whole
Between flowing the one of rectification output ends of device ZD, the resistance R4 other ends are connected to the positive terminal and bridge of the polar capacitor C6
Between the one of rectification output ends of formula rectifier ZD；The one of power output ends of EMC filters U1 connect voltage-stablizer
The power input pin VIN, the EMC filters U1 of K1 another power output end ground connection；The capacitance C41 is parallel to described
Between two power output ends of EMC filters U1；The grounding pin GND ground connection of the voltage-stablizer K1, the electricity of the voltage-stablizer K1
Source output pin VO connects the secondary filter circuit with VOUT.
The crane brake power circuit, wherein：The bridge rectifier ZD is made of diode D2~D5 connections；
The cathode terminal that the anode tap of the diode D2 and D3 connects power supply V+, the diode D2 jointly connects the diode D5's
Anode tap, the cathode terminal of the diode D3 connect the anode tap of the diode D4, the cathode terminal of the diode D4 and D5
Common ground connection；The one end the capacitance C17 is connected between the cathode terminal and the anode tap of diode D5 of the diode D2, described
The other end of capacitance C17 is connected between the cathode terminal and the anode tap of diode D4 of the diode D3；The EMC filters
The one of power inputs of U1 connect the resistance R4 and are connected to the cathode terminal of the diode D2 by the resistance R4
Between the anode tap of diode D5, another power inputs of the EMC filters U1 are connected to the cathode of the diode D3
Between end and the anode tap of diode D4；The positive terminal of the polar capacitor C6 is connected to resistance R4 and EMC filters U1 wherein
Between one input terminal, the negative pole end of the polar capacitor C6 is connected to the sun of the cathode terminal and diode D4 of the diode D3
Between extreme.
The crane brake power circuit, wherein：The secondary filtered electrical routing resistance R2, capacitance C14, common mode electricity
Sense U2, polar capacitor C10 connect composition with C16, capacitance C7~C9, micro power module K2；The one end the resistance R2 is connected to
The power supply output pin VO of the voltage-stablizer K1, other end ground connection；The one end the capacitance C14 is connected to the electricity of the voltage-stablizer K1
Source output pin VO, other end ground connection；A common mode inductance U2 wherein power access ends connect the power supply of the voltage-stablizer K1
Output pin VO, another power access end ground connection, wherein power output end connection power supply V1+, another power output end ground connection；
The micro power module K2 passes through grounding lead by plant-grid connection pin VIN connection power supplys V1+, the micro power module K2
Foot GND ground connection；The positive terminal of the polar capacitor C16 connects power supply V1+, negative pole end ground connection；The one end capacitance C7 connection electricity
Source V1+, other end ground connection；The one end the capacitance C8 is connected to the power supply output pin VO of the micro power module K2, another
End ground connection；The one end the capacitance C9 is connected to the power supply output pin VO of the micro power module K2, other end ground connection；It is described
The positive terminal of polar capacitor C10 connects the power supply output pin VO of the micro power module K2, negative pole end ground connection；Meanwhile institute
The power supply output pin VO and grounding pin GND for stating micro power module K2 are connected to the regulator circuit.
The crane brake power circuit, wherein：The regulator circuit is by safe Resistance R3, resistance R30, polarity electricity
Hold C18, polar capacitor C19, polar capacitor C24, capacitance C20, single channel Voltage stabilizing module K3 connections composition；The safe Resistance R3 mono-
End connects the power supply output pin VO of the micro power module K2, other end ground connection；The positive terminal of the polar capacitor C18 connects
Connect the power supply output pin VO of the micro power module K2, negative pole end ground connection；The negative pole end of the polar capacitor C24 is grounded,
Positive terminal connects the resistance R30 and connects the power supply output pin VO of the micro power module K2 by the resistance R30；
The plant-grid connection pin VIN of the single channel Voltage stabilizing module K3 connects the power supply output pin VO of the micro power module K2, institute
State the grounding pin GND ground connection of single channel Voltage stabilizing module K3.
The crane brake power circuit, wherein：The power supply output pin VOUT of the single channel Voltage stabilizing module K3 connects
It is connected to operating voltage connecting terminal VDD3.3；Meanwhile between the positive terminal of the polar capacitor C18 and the resistance R30 outward
Lead to supply voltage connecting terminal VCC.
Advantageous effect：
Crane brake circuit construction of electric power reasonable design of the present invention, using filtering anti-jamming circuit Redundancy Design circuit,
Effectively inhibit high frequency or noise harmonic wave caused by higher harmonics and electric network noise and Switching Power Supply；Simultaneously by detecting in many ways, greatly
Area collects the power grid distortion situation at crane scene, and the parameter of Proper Match safety capacitance fully can inhibit and adjust
Influence of the distorted signal to power supply signal；Especially in the industrial environment largely using Frequency Converter Control, output side transducer is high
Subharmonic content can reach 45% or more current distortion rate sometimes, this will arrange electric power loop to reception and registration and brings fatal rush
It hits, and uses double filter circuits, can effectively inhibit frequency converter higher hamonic wave spectrum component, inhibit harmonic wave interference.
Wherein, crane control and its device context or around the brake gear, generally can all there is a large amount of contacts
Device, relay or inductive load exist；These relays will produce electromagnetic interference during being supported on connection, power-off and spark is dry
It disturbs, these interference will seriously affect the stability of electronic circuit, lead to crane brake disabler.It is provided by the present invention
Crane brake power circuit, overcomes that the design of current China's conventional brake electric power loop is simple, anti-interference ability is weak, easily
There is the disadvantage that braking malfunctions, unstable and precision is not high, is highly suitable for the brake gear of each crane facility in China
Middle use and popularization.
Description of the drawings
Fig. 1 is the structure connection block diagram of crane brake power circuit of the present invention；
Fig. 2 is the circuit diagram of the primary filter circuit of crane brake power circuit of the present invention；
Fig. 3 is the circuit diagram of the secondary filter circuit of crane brake power circuit of the present invention；
Fig. 4 is the circuit diagram of the regulator circuit of crane brake power circuit of the present invention.
Specific implementation mode
As shown in Figure 1, crane brake power circuit of the present invention, including rectification circuit 1, primary filter circuit 2, connection
In 2 outlet side of primary filter circuit secondary filter circuit 3 and be connected to the regulator circuit 4 of 3 outlet side of secondary filter circuit.
As shown in Fig. 2, the rectification circuit 1 is connected by Transient Suppression Diode D1, switch resistance R1 with bridge rectifier ZD
Composition；Wherein, the anode tap ground connection of Transient Suppression Diode D1, cathode terminal connect power supply V+；Switch resistance R1 mono- is terminated
Ground, the other end connect power supply V+；The positive rectification input terminal of bridge rectifier ZD connects power supply V+, cathode rectification input termination
Ground, two rectification output ends connect the primary filter circuit 2；Wherein, bridge rectifier ZD is by diode D2~D5 connection groups
At；The anode tap of diode D2 and D3 connects power supply V+ jointly, and the cathode terminal of diode D2 connects the anode tap of diode D5,
The anode tap of the cathode terminal connection diode D4 of diode D3, the cathode terminal of diode D4 and D5 are grounded jointly.
As shown in Fig. 2, the primary filter circuit 2 is by resistance R4, capacitance C17, polar capacitor C6, EMC filter U1, capacitance
C41 connects composition with voltage-stablizer K1；Wherein, which, which is connected by inductance L1, L2 with capacitance C1, C2, forms.
Capacitance C17 and polar capacitor C6 is parallel to successively between two rectification output ends of bridge rectifier ZD；It should
The one end resistance R4 is connected between capacitance C17 and the one of rectification output ends of bridge rectifier ZD, the resistance R4 other ends
It is connected between the positive terminal of polar capacitor C6 and the one of rectification output ends of bridge rectifier ZD；The EMC filters
The power input pin VIN of the one of power output end connection voltage-stablizer K1 of U1, EMC filters U1 another power supply outputs
End ground connection；Capacitance C41 is parallel between two power output ends of EMC filters U1；The grounding pin GND of voltage-stablizer K1
Ground connection, power supply output pin VO connect secondary filter circuit 3 with VOUT.The one end capacitance C17 is connected to the cathode of diode D2
Between end and the anode tap of diode D5, the other end of capacitance C17 is connected to the cathode terminal of diode D3 with diode D4's
Between anode tap；The one of power input connection resistance R4 of EMC filters U1 are simultaneously connected to diode by resistance R4
Between the cathode terminal and the anode tap of diode D5 of D2, another power inputs of EMC filters U1 are connected to diode D3's
Between cathode terminal and the anode tap of diode D4；The positive terminal of polar capacitor C6 be connected to resistance R4 and EMC filters U1 its
In between an input terminal, the negative pole end of polar capacitor C6 is connected to the anode tap of the cathode terminal and diode D4 of diode D3
Between.
As shown in figure 3, the secondary filter circuit 3 by resistance R2, capacitance C14, common mode inductance U2, polar capacitor C10 and
C16, capacitance C7~C9, micro power module K2 connections composition；Common mode inductance U2 is made of inductance L3 and L4.
The one end resistance R2 is connected to the power supply output pin VO of voltage-stablizer K1, other end ground connection；The one end capacitance C14
It is connected to the power supply output pin VO of voltage-stablizer K1, other end ground connection；A common mode inductance U2 wherein power access ends connect
The power supply output pin VO of voltage-stablizer K1, another power access end ground connection a, wherein power output end connects power supply V1+, separately
One power output end is grounded；The micro power module K2 passes through grounding pin by plant-grid connection pin VIN connection power supply V1+
GND is grounded；Meanwhile the power supply output pin VO and grounding pin GND of micro power module K2 are connected to the regulator circuit 4；
The positive terminal of polar capacitor C16 connects power supply V1+, negative pole end ground connection；The one end capacitance C7 connects power supply V1+, another termination
Ground；The one end capacitance C8 is connected to the power supply output pin VO of micro power module K2, other end ground connection；The one end capacitance C9 connects
It is connected to the power supply output pin VO of micro power module K2, other end ground connection；The positive terminal of polar capacitor C10 connects micro electric
The power supply output pin VO of source module K2, negative pole end ground connection.
As shown in figure 4, the regulator circuit 4 is by safe Resistance R3, resistance R30, polar capacitor C18, polar capacitor C19, pole
Property capacitance C24, capacitance C20, single channel Voltage stabilizing module K3 connections composition.
The one end safe Resistance R3 connects the power supply output pin VO of micro power module K2, other end ground connection；The polarity
The power supply output pin VO of the positive terminal connection micro power module K2 of capacitance C18, negative pole end ground connection；Polar capacitor C24's
Negative pole end is grounded, and positive terminal connection resistance R30 simultaneously passes through the power supply output pin VO of resistance R30 connection micro power modules K2；
The single channel Voltage stabilizing module K3 passes through the power supply output pin VO of its plant-grid connection pin VIN connection micro power modules K2, the list
Road Voltage stabilizing module K3 is grounded by its grounding pin GND, which passes through the VOUT connections of its power supply output pin
There is operating voltage connecting terminal VDD3.3；Meanwhile confession is led to outward between the positive terminal and resistance R30 of polar capacitor C18
Piezoelectric voltage connecting terminal VCC.Resistance R30 and capacitance C24 form RC absorbing circuits.
Structure of the invention design is simple, reasonable, and it is simple, anti-dry to overcome current China's conventional brake electric power loop design
It disturbs that ability is weak, the not high disadvantage of braking malfunction, unstable and precision easily occurs, be highly suitable for each crane facility in China
Use and popularization in brake gear.
The foregoing is merely the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto.Any
The technical staff in field in technical scope disclosed by the invention, it can be carried out it is appropriate be altered or varied, and this change
Become or variation should be covered by the protection scope of the present invention.
Claims (7)
1. a kind of crane brake power circuit, it is characterised in that：The power circuit includes rectification circuit, it is described to be connected to
The primary filter circuit of rectification circuit outlet side, the secondary filter circuit for being connected to the primary filter circuit outlet side and company
It is connected to the regulator circuit of the secondary filter circuit outlet side.
2. crane brake power circuit as described in claim 1, it is characterised in that：The rectification circuit is inhibited by transient state
Diode D1, switch resistance R1 connect composition with bridge rectifier ZD；The anode tap of the Transient Suppression Diode D1 is grounded, cloudy
Extreme connection power supply V+；The one end the switch resistance R1 is grounded, and the other end connects power supply V+；The anode of the bridge rectifier ZD
Rectification input terminal connects power supply V+, cathode rectification input end grounding, two rectification output end connections primary filter circuit.
3. crane brake power circuit as claimed in claim 2, it is characterised in that：The primary filtered electrical routing resistance
R4, capacitance C17, polar capacitor C6, EMC filter U1, capacitance C41 connect composition with voltage-stablizer K1；The capacitance C17 and polarity
Capacitance C6 is parallel to successively between two rectification output ends of the bridge rectifier ZD；The one end the resistance R4 is connected to described
Between capacitance C17 and the one of rectification output ends of bridge rectifier ZD, the resistance R4 other ends are connected to the polarity electricity
Between the positive terminal and the one of rectification output ends of bridge rectifier ZD that hold C6；The one of power supplys of the EMC filters U1
Output end connects the power input pin VIN, the EMC filters U1 of voltage-stablizer K1 another power output end ground connection；It is described
Capacitance C41 is parallel between two power output ends of the EMC filters U1；The grounding pin GND ground connection of the voltage-stablizer K1,
The power supply output pin VO of the voltage-stablizer K1 connects the secondary filter circuit with VOUT.
4. crane brake power circuit as claimed in claim 3, it is characterised in that：The bridge rectifier ZD is by two poles
Pipe D2~D5 connections form；The anode tap of the diode D2 and D3 connects power supply V+, the cathode terminal of the diode D2 jointly
Connecting the anode tap of the diode D5, the cathode terminal of the diode D3 connects the anode tap of the diode D4, and described two
The cathode terminal of pole pipe D4 and D5 are grounded jointly；The one end the capacitance C17 is connected to the cathode terminal and diode of the diode D2
Between the anode tap of D5, the other end of the capacitance C17 is connected to the anode of the cathode terminal and diode D4 of the diode D3
Between end；The one of power inputs of EMC filters U1 connect the resistance R4 and are connected to by the resistance R4
Between the cathode terminal and the anode tap of diode D5 of the diode D2, another power input connections of EMC filters U1
Between the cathode terminal and the anode tap of diode D4 of the diode D3；The positive terminal of the polar capacitor C6 is connected to resistance
Between the one of input terminals of R4 and EMC filters U1, the negative pole end of the polar capacitor C6 is connected to the diode D3's
Between cathode terminal and the anode tap of diode D4.
5. crane brake power circuit as claimed in claim 3, it is characterised in that：The secondary filtered electrical routing resistance
R2, capacitance C14, common mode inductance U2, polar capacitor C10 and C16, capacitance C7~C9, micro power module K2 connect composition；
The one end the resistance R2 is connected to the power supply output pin VO of the voltage-stablizer K1, other end ground connection；The capacitance C14 mono-
End is connected to the power supply output pin VO of the voltage-stablizer K1, other end ground connection；A common mode inductance U2 wherein plant-grid connections
End connects the power supply output pin VO of the voltage-stablizer K1, another power access end ground connection, wherein power output end connection electricity
Source V1+, another power output end ground connection；The micro power module K2 passes through plant-grid connection pin VIN connection power supply V1+, institute
Micro power module K2 is stated to be grounded by grounding pin GND；The positive terminal of the polar capacitor C16 connects power supply V1+, negative pole end
Ground connection；The one end the capacitance C7 connects power supply V1+, other end ground connection；The one end the capacitance C8 is connected to the micro power mould
The power supply output pin VO of block K2, other end ground connection；The one end the capacitance C9 is connected to the power supply of the micro power module K2
Output pin VO, other end ground connection；The positive terminal of the polar capacitor C10 connects the power supply output of the micro power module K2
Pin VO, negative pole end ground connection；Meanwhile the power supply output pin VO and grounding pin GND of the micro power module K2 are connected to
The regulator circuit.
6. crane brake power circuit as claimed in claim 5, it is characterised in that：The regulator circuit is by safe Resistance
R3, resistance R30, polar capacitor C18, polar capacitor C19, polar capacitor C24, capacitance C20, single channel Voltage stabilizing module K3 connection groups
At；
The one end the safe Resistance R3 connects the power supply output pin VO of the micro power module K2, other end ground connection；It is described
The positive terminal of polar capacitor C18 connects the power supply output pin VO of the micro power module K2, negative pole end ground connection；The polarity
The negative pole end of capacitance C24 is grounded, and positive terminal connects the resistance R30 and passes through the resistance R30 connections micro power mould
The power supply output pin VO of block K2；The plant-grid connection pin VIN connections micro power module of the single channel Voltage stabilizing module K3
The grounding pin GND ground connection of power supply the output pin VO, the single channel Voltage stabilizing module K3 of K2.
7. crane brake power circuit as claimed in claim 6, it is characterised in that：The electricity of the single channel Voltage stabilizing module K3
Source output pin VOUT is connected with operating voltage connecting terminal VDD3.3；Meanwhile the positive terminal of the polar capacitor C18 with it is described
Supply voltage connecting terminal VCC is led between resistance R30 outward.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810781186.7A CN108712066A (en) | 2018-07-17 | 2018-07-17 | A kind of crane brake power circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810781186.7A CN108712066A (en) | 2018-07-17 | 2018-07-17 | A kind of crane brake power circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108712066A true CN108712066A (en) | 2018-10-26 |
Family
ID=63875156
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810781186.7A Pending CN108712066A (en) | 2018-07-17 | 2018-07-17 | A kind of crane brake power circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108712066A (en) |
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| CN201601614U (en) * | 2009-12-18 | 2010-10-06 | 安徽科达自动化集团股份有限公司 | Power type switching power supply |
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| CN103384114A (en) * | 2013-07-29 | 2013-11-06 | 中国北车集团大连机车研究所有限公司 | Power supply for direct current (DC) 600V train power supply device control unit |
| CN204794739U (en) * | 2015-06-01 | 2015-11-18 | 安徽科达自动化集团股份有限公司 | Low -voltage heavy current synchronous Rectifier power |
| CN107123575A (en) * | 2016-02-24 | 2017-09-01 | 浙江正泰电器股份有限公司 | The power control circuit of the motor-operating mechanism of breaker |
| CN208571913U (en) * | 2018-07-17 | 2019-03-01 | 尼力德（宝鸡）起重机有限公司 | A kind of crane brake power circuit |
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2018
- 2018-07-17 CN CN201810781186.7A patent/CN108712066A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201601614U (en) * | 2009-12-18 | 2010-10-06 | 安徽科达自动化集团股份有限公司 | Power type switching power supply |
| CN202309546U (en) * | 2011-10-08 | 2012-07-04 | 江阴长仪集团有限公司 | Power supply device for intelligent electric meter |
| CN103384114A (en) * | 2013-07-29 | 2013-11-06 | 中国北车集团大连机车研究所有限公司 | Power supply for direct current (DC) 600V train power supply device control unit |
| CN204794739U (en) * | 2015-06-01 | 2015-11-18 | 安徽科达自动化集团股份有限公司 | Low -voltage heavy current synchronous Rectifier power |
| CN107123575A (en) * | 2016-02-24 | 2017-09-01 | 浙江正泰电器股份有限公司 | The power control circuit of the motor-operating mechanism of breaker |
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Effective date of registration: 20200720 Address after: 721300 building 4, block C, Dongguan robot manufacturing industrial park, Chencang District, Baoji City, Shaanxi Province Applicant after: Shaanxi nilide Transmission System Co.,Ltd. Address before: 721300 No. 27 West Road, Chencang District, Baoji, Shaanxi Applicant before: NILIDE (BAOJI) CRANE Co.,Ltd. |
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Effective date of registration: 20230719 Address after: 721399 No. 27, Xiguo Avenue, Chencang District, Baoji, Shaanxi Province Applicant after: NILIDE (BAOJI) CRANE Co.,Ltd. Address before: 721300 Building 4, Zone C, Dongguan Robot Manufacturing Industrial Park, Chencang District, Baoji City, Shaanxi Province Applicant before: Shaanxi nilide Transmission System Co.,Ltd. |