CN203840245U - Two-path motor control module circuit - Google Patents
Two-path motor control module circuit Download PDFInfo
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- CN203840245U CN203840245U CN201420259377.4U CN201420259377U CN203840245U CN 203840245 U CN203840245 U CN 203840245U CN 201420259377 U CN201420259377 U CN 201420259377U CN 203840245 U CN203840245 U CN 203840245U
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- 238000002955 isolation Methods 0.000 claims abstract description 24
- 239000003990 capacitor Substances 0.000 claims description 57
- 210000001699 lower leg Anatomy 0.000 claims description 27
- 230000007704 transition Effects 0.000 claims description 21
- 230000000087 stabilizing effect Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The utility model discloses a two-path motor control module circuit, which comprises a power supply module, an isolation module, a first drive module, a second drive module, a first motor and a second motor. The overall structure of the circuit is simple, the design is reasonable, and the cost is low. A BTN7971 drive chip is preferably used, the other drive chips can be compatible, and good chip performance can be obtained. Due to the selection of a 74LVC245 bus drive chip, the signal drive ability is improved, the BTN7971 drive chip and the motor are isolated, and the BTN7971 drive chip and the motor chip are protected. An MIC5219 power supply chip is preferably used, output voltage is provided for the isolation module, level matching between the isolation module and the first drive module and the second drive module can be realized, a filter circuit is added, and acquired signals are more accurate. As a varistor is additionally arranged at the motor output end, other chips can be prevented from being damaged due to peak voltage generated when the motor commutates instantaneously.
Description
Technical field
The utility model relates to a kind of circuit for controlling motor, relates in particular to a kind of two-way motor control module circuit.
Background technology
At present, along with the attention that the ability of practice cultivates is started to student by colleges and universities, increasing colleges and universities organize the student similarly intelligent vehicle matches such as participating in national intelligent automobile contest, by taking part in game, student's the ability of practice are improved.In student's match, the Electric Machine Control of intelligent vehicle part is usually used two-way motor control module circuit, and in the market conventional two-way motor control module circuit have that following shortcoming integrated power chip performance is poor, signal driver ability is weak, collection signal not precisely, circuit integrated chip easily burnt etc., because the objective reality of these problems is brought a lot of unpredictable problems and obstacle to learner's design and study, affect the progress of learner's study and design.
Utility model content
Technical problem to be solved in the utility model is:.
For solving the problems of the technologies described above, the technical solution of the utility model is:
A kind of two-way motor control module circuit, comprise power module, isolation module, the first driver module, the second driver module, the first motor and the second motor, described power module is connected with described isolation module, described the first driver module and described the second driver module, described isolation module is connected with described the second driver module with described the first driver module, described the first driver module is controlled described the first motor movement, and described the second driver module is controlled described the second motor movement.
Wherein said isolation module comprises isolating chip U1, connector P1 and filter capacitor C1, the 20 pin of described isolating chip U1 is connected with the output of described power module, receive the output voltage of described power module, the first pin of described connector P1, crus secunda, tripod, the 4th pin are connected with the tenth octal, the 17 pin, the 16 pin, the 15 pin of described isolating chip U1 respectively; Described filter capacitor C1 one end is connected with the output of described power module, other end ground connection; The 5th pin ground connection of the first pin of described isolating chip U1, the 6th pin, the 7th pin, octal, the 9th pin, the tenth pin, the 11 pin, the 12 pin, the tenth tripod, the 14 pin, the 19 pin and described connector P1; The crus secunda of described isolating chip U1 is connected with described the first driver module with tripod, and the 4th pin of described isolating chip U1 is connected with described the second driver module with the 5th pin.
Described the first driver module and/or described the second driver module comprise filter capacitor C8, filter capacitor C9, resistance R 3, resistance R 5, resistance R 11, resistance R 13, resistance R 15, resistance R 21, drive chip IC 2, drive chip IC 4; Described filter capacitor C8 is connected with the output of described power module with one end after described filter capacitor C9 parallel connection, other end ground connection; The 7th pin of described driving chip IC 2 is connected with the output of described power module, and tripod is connected with the output of described power module with after described resistance R 3 series connection; The 7th pin of described driving chip IC 4 is connected with the output of described power module, and tripod is connected with the output of described power module with after described resistance R 13 series connection; The 5th pin of described driving chip IC 2 connect with described resistance R 11 after ground connection, the first pin ground connection of described driving chip IC 2; The 5th pin of described driving chip IC 4 connect with described resistance R 21 after ground connection, the first pin ground connection of described driving chip IC 4.
After the described resistance R 5 that the crus secunda of described isolating chip U1 is connected in described the first driver module, be connected with the crus secunda of described driving chip IC 2, the described resistance R 15 that the tripod of described isolating chip U1 is connected in described the first driver module is connected with the crus secunda of described driving chip IC 4 afterwards; The 4th pin of the described driving chip IC 2 in described the first driver module is connected with the positive pole of described the first motor with octal, and the 4th pin of the described driving chip IC 4 in described the first driver module is connected with the negative pole of described the first motor with octal.
After the described resistance R 5 that the crus secunda of described isolating chip U1 is connected in described the second driver module, be connected with the crus secunda of described driving chip IC 2, the described resistance R 15 that the tripod of described isolating chip U1 is connected in described the second driver module is connected with the crus secunda of described driving chip IC 4 afterwards; The 4th pin of the described driving chip IC 2 in described the second driver module is connected with the positive pole of described the second motor with octal, and the 4th pin of the described driving chip IC 4 in described the second driver module is connected with the negative pole of described the second motor with octal.
Described driving chip IC 2 and/or described driving chip IC 4 drive chip, BTS7970B to drive chip, BTN7970B to drive chip, BTN7971B to drive a kind of in chip for BTS7960B drives chip, BTN7960B further.
Described driving chip IC 2 and/or described driving chip IC 4 are BTN7971 driving chip further.
Described isolating chip U1 is 74LVC245 bus driver chip further.
Described power module comprises current-limiting resistance R1, LED light D1, power connector P2, filter capacitor C2, filter capacitor C3, filter capacitor C4, filter capacitor C5 and voltage transitions chip U2 further.
Ground connection after described power connector P2, described filter capacitor C2, described filter capacitor C4 are connected with external power supply respectively; Described current-limiting resistance R1 one end is connected with described external power supply, ground connection after the other end is connected in series with described LED light D1; After being connected with described external power supply with tripod, passes through on the first pin of described voltage transitions chip U2 described filter capacitor C4 ground connection, the crus secunda ground connection of described voltage transitions chip U2, the 4th pin of described voltage transitions chip U2 is connected in series ground connection after described filter capacitor C5, ground connection after the 5th pin of described voltage transitions chip U2 is connected in series with described filter capacitor C3, the output that the 5th pin of described voltage transitions chip U2 is described power module, is connected respectively at described isolation module, described the first driver module and described the second driver module.
Described the first driver module and/or described the second driver module also comprise filter capacitor C11, filter capacitor C13, divider resistance R7, divider resistance R9, divider resistance R17, divider resistance R20 further.
The 6th pin of described driving chip IC 2 is connected with described divider resistance R9 with described resistance R 7, the other end ground connection of described divider resistance R9, ground connection after the other end of described resistance R 7 is connected in series with described filter capacitor C11.
The 6th pin of described driving chip IC 4 is connected with described divider resistance R20 with described resistance R 17, the other end ground connection of described divider resistance R20, ground connection after the other end of described resistance R 17 is connected in series with described filter capacitor C13.
Described power module also comprises voltage stabilizing circuit further.
Described voltage transitions chip U2 is MIC5219 power supply chip further.
Described the first driver module and/or described the second driver module also comprise piezo-resistance Rv2 further, described piezo-resistance Rv2 and described the first motor and/or described the second motor parallel.
The output voltage of described power module is 3.3V further.
Adopt technique scheme, the utility model at least comprises following beneficial effect:
(1) a kind of two-way motor control module circuit described in the utility model, comprises power module, isolation module, the first driver module, the second driver module, the first motor and the second motor, integrated circuit relatively simple for structure, reasonable in design, and cost is lower.Preferably use BTN7971 to drive chip, not only can drive chip by compatible other, can obtain good chip performance simultaneously.The selection of 74LVC245 bus driver chip has improved signal driver ability; isolate BTN7971 simultaneously and driven chip and motor; protected BTN7971 to drive chip and motor chip; prevent from, after BTN7971 from damaging, supply voltage is directly inputted to motor chip, and then burn out motor chip control pin.
(2) a kind of two-way motor control module circuit described in the utility model, preferably use MIC5219 power supply chip, for isolation module provides output voltage, realize the level match of isolation module and the first driver module and the second driver module, increase filter circuit, current signal is processed rear input motor after filtering, and collection signal is more accurate.Motor output end increases piezo-resistance, prevents that motor moment commutation from producing crest voltage and then damaging other chip.Reserved feedback signal, is convenient to user and uses and expanded circuit.
accompanying drawing explanation
Fig. 1 is the circuit diagram of a kind of two-way motor control module circuit described in the utility model;
Fig. 2 is the circuit diagram of the power module of a kind of two-way motor control module circuit described in the utility model.
embodiment
Below in conjunction with drawings and Examples, the utility model is further illustrated.
As shown in Figure 1 to Figure 2, for meeting a kind of two-way motor control module circuit of the present utility model, comprise power module, isolation module, the first driver module, the second driver module, the first motor and the second motor, described power module is connected with described isolation module, described the first driver module and described the second driver module, described isolation module is connected with described the second driver module with described the first driver module, described the first driver module is controlled described the first motor movement, and described the second driver module is controlled described the second motor movement.
Wherein said isolation module comprises isolating chip U1, connector P1 and filter capacitor C1, the 20 pin of described isolating chip U1 is connected with the output of described power module, receive the output voltage of described power module, the first pin of described connector P1, crus secunda, tripod, the 4th pin are connected with the tenth octal, the 17 pin, the 16 pin, the 15 pin of described isolating chip U1 respectively; Described filter capacitor C1 one end is connected with the output of described power module, other end ground connection; The 5th pin ground connection of the first pin of described isolating chip U1, the 6th pin, the 7th pin, octal, the 9th pin, the tenth pin, the 11 pin, the 12 pin, the tenth tripod, the 14 pin, the 19 pin and described connector P1; The crus secunda of described isolating chip U1 is connected with described the first driver module with tripod, and the 4th pin of described isolating chip U1 is connected with described the second driver module with the 5th pin.
Described the first driver module and/or described the second driver module comprise filter capacitor C8, filter capacitor C9, resistance R 3, resistance R 5, resistance R 11, resistance R 13, resistance R 15, resistance R 21, drive chip IC 2, drive chip IC 4; Described filter capacitor C8 is connected with the output of described power module with one end after described filter capacitor C9 parallel connection, other end ground connection; The 7th pin of described driving chip IC 2 is connected with the output of described power module, and tripod is connected with the output of described power module with after described resistance R 3 series connection; The 7th pin of described driving chip IC 4 is connected with the output of described power module, and tripod is connected with the output of described power module with after described resistance R 13 series connection; The 5th pin of described driving chip IC 2 connect with described resistance R 11 after ground connection, the first pin ground connection of described driving chip IC 2; The 5th pin of described driving chip IC 4 connect with described resistance R 21 after ground connection, the first pin ground connection of described driving chip IC 4.
After the described resistance R 5 that the crus secunda of described isolating chip U1 is connected in described the first driver module, be connected with the crus secunda of described driving chip IC 2, the described resistance R 15 that the tripod of described isolating chip U1 is connected in described the first driver module is connected with the crus secunda of described driving chip IC 4 afterwards; The 4th pin of the described driving chip IC 2 in described the first driver module is connected with the positive pole of described the first motor with octal, and the 4th pin of the described driving chip IC 4 in described the first driver module is connected with the negative pole of described the first motor with octal.
After the described resistance R 5 that the crus secunda of described isolating chip U1 is connected in described the second driver module, be connected with the crus secunda of described driving chip IC 2, the described resistance R 15 that the tripod of described isolating chip U1 is connected in described the second driver module is connected with the crus secunda of described driving chip IC 4 afterwards; The 4th pin of the described driving chip IC 2 in described the second driver module is connected with the positive pole of described the second motor with octal, and the 4th pin of the described driving chip IC 4 in described the second driver module is connected with the negative pole of described the second motor with octal.
Preferably described driving chip IC 2 and/or described driving chip IC 4 drive chip, BTS7970B to drive chip, BTN7970B to drive chip, BTN7971B to drive a kind of in chip for BTS7960B drives chip, BTN7960B.More preferably described driving chip IC 2 and/or described driving chip IC 4 are BTN7971 driving chip.Preferably described isolating chip U1 is 74LVC245 bus driver chip.It is to be applied to the high integrated chip of motor-driven large electric current half-bridge that described BTN7971 drives chip, and it,, with low limit MOSFET and a drive IC of the flash MOSFET of a P raceway groove, a N raceway groove, has good chip performance.It will be appreciated by those skilled in the art that preferred implementation described above is intended to absolutely prove the present embodiment, not for restriction, any apparent chip is replaced all within the protection range of the present embodiment.
A kind of two-way motor control module circuit described in the present embodiment, comprises power module, isolation module, the first driver module, the second driver module, the first motor and the second motor, integrated circuit relatively simple for structure, reasonable in design, and cost is lower.Preferably use BTN7971 to drive chip, not only can drive chip by compatible other, can obtain good chip performance simultaneously.The selection of 74LVC245 bus driver chip has improved signal driver ability; isolate BTN7971 simultaneously and driven chip and motor; protected BTN7971 to drive chip and motor chip; prevent from, after BTN7971 from damaging, supply voltage is directly inputted to motor chip, and then burn out motor chip control pin.
Described power module comprises current-limiting resistance R1, LED light D1, power connector P2, filter capacitor C2, filter capacitor C3, filter capacitor C4, filter capacitor C5 and voltage transitions chip U2.
Ground connection after described power connector P2, described filter capacitor C2, described filter capacitor C4 are connected with external power supply respectively; Described current-limiting resistance R1 one end is connected with described external power supply, ground connection after the other end is connected in series with described LED light D1; After being connected with described external power supply with tripod, passes through on the first pin of described voltage transitions chip U2 described filter capacitor C4 ground connection, the crus secunda ground connection of described voltage transitions chip U2, the 4th pin of described voltage transitions chip U2 is connected in series ground connection after described filter capacitor C5, ground connection after the 5th pin of described voltage transitions chip U2 is connected in series with described filter capacitor C3, the output that the 5th pin of described voltage transitions chip U2 is described power module, is connected respectively at described isolation module, described the first driver module and described the second driver module.
Described the first driver module and/or described the second driver module also comprise filter capacitor C11, filter capacitor C13, divider resistance R7, divider resistance R9, divider resistance R17, divider resistance R20.The 6th pin of described driving chip IC 2 is connected with described divider resistance R9 with described resistance R 7, the other end ground connection of described divider resistance R9, ground connection after the other end of described resistance R 7 is connected in series with described filter capacitor C11.The 6th pin of described driving chip IC 4 is connected with described divider resistance R20 with described resistance R 17, the other end ground connection of described divider resistance R20, ground connection after the other end of described resistance R 17 is connected in series with described filter capacitor C13.After two electric resistance partial pressures, the voltage of any of getting is as the feedback signal of electric current, and this feedback signal is reserved, and person easy to use uses and expanded circuit.
Preferably described power module also comprises voltage stabilizing circuit, described voltage transitions chip U2 is MIC5219 power supply chip, described the first driver module and/or described the second driver module also comprise piezo-resistance Rv2, described piezo-resistance Rv2 and described the first motor and/or described the second motor parallel, the output voltage of described power module is 3.3V.
A kind of two-way motor control module circuit described in the present embodiment, preferably use MIC5219 power supply chip, for isolation module provides output voltage, realize the level match of isolation module and the first driver module and the second driver module, increase filter circuit, current signal is processed rear input motor after filtering, and collection signal is more accurate.Motor output end increases piezo-resistance, prevents that motor moment commutation from producing crest voltage and then damaging other chip.Reserved feedback signal, is convenient to user and uses and expanded circuit.
Above an embodiment of the present utility model is had been described in detail, but the preferred embodiment that described content is only created for the utility model can not be considered to the practical range of creating for limiting the utility model.All equalization variations of doing according to the utility model creation application range and improvement etc., within all should still belonging to patent covering scope of the present utility model.
Claims (10)
1. a two-way motor control module circuit, it is characterized in that: comprise power module, isolation module, the first driver module, the second driver module, the first motor and the second motor, described power module is connected with described isolation module, described the first driver module and described the second driver module, described isolation module is connected with described the second driver module with described the first driver module, described the first driver module is controlled described the first motor movement, and described the second driver module is controlled described the second motor movement;
Wherein said isolation module comprises isolating chip U1, connector P1 and filter capacitor C1, the 20 pin of described isolating chip U1 is connected with the output of described power module, receive the output voltage of described power module, the first pin of described connector P1, crus secunda, tripod, the 4th pin are connected with the tenth octal, the 17 pin, the 16 pin, the 15 pin of described isolating chip U1 respectively; Described filter capacitor C1 one end is connected with the output of described power module, other end ground connection; The 5th pin ground connection of the first pin of described isolating chip U1, the 6th pin, the 7th pin, octal, the 9th pin, the tenth pin, the 11 pin, the 12 pin, the tenth tripod, the 14 pin, the 19 pin and described connector P1; The crus secunda of described isolating chip U1 is connected with described the first driver module with tripod, and the 4th pin of described isolating chip U1 is connected with described the second driver module with the 5th pin;
Described the first driver module and/or described the second driver module comprise filter capacitor C8, filter capacitor C9, resistance R 3, resistance R 5, resistance R 11, resistance R 13, resistance R 15, resistance R 21, drive chip IC 2, drive chip IC 4; Described filter capacitor C8 is connected with the output of described power module with one end after described filter capacitor C9 parallel connection, other end ground connection; The 7th pin of described driving chip IC 2 is connected with the output of described power module, and tripod is connected with the output of described power module with after described resistance R 3 series connection; The 7th pin of described driving chip IC 4 is connected with the output of described power module, and tripod is connected with the output of described power module with after described resistance R 13 series connection; The 5th pin of described driving chip IC 2 connect with described resistance R 11 after ground connection, the first pin ground connection of described driving chip IC 2; The 5th pin of described driving chip IC 4 connect with described resistance R 21 after ground connection, the first pin ground connection of described driving chip IC 4;
After the described resistance R 5 that the crus secunda of described isolating chip U1 is connected in described the first driver module, be connected with the crus secunda of described driving chip IC 2, the described resistance R 15 that the tripod of described isolating chip U1 is connected in described the first driver module is connected with the crus secunda of described driving chip IC 4 afterwards; The 4th pin of the described driving chip IC 2 in described the first driver module is connected with the positive pole of described the first motor with octal, and the 4th pin of the described driving chip IC 4 in described the first driver module is connected with the negative pole of described the first motor with octal;
After the described resistance R 5 that the crus secunda of described isolating chip U1 is connected in described the second driver module, be connected with the crus secunda of described driving chip IC 2, the described resistance R 15 that the tripod of described isolating chip U1 is connected in described the second driver module is connected with the crus secunda of described driving chip IC 4 afterwards; The 4th pin of the described driving chip IC 2 in described the second driver module is connected with the positive pole of described the second motor with octal, and the 4th pin of the described driving chip IC 4 in described the second driver module is connected with the negative pole of described the second motor with octal.
2. two-way motor control module circuit as claimed in claim 1, is characterized in that: described driving chip IC 2 and/or described driving chip IC 4 drive chip, BTS7970B to drive chip, BTN7970B to drive chip, BTN7971B to drive a kind of in chip for BTS7960B drives chip, BTN7960B.
3. two-way motor control module circuit as claimed in claim 2, is characterized in that: described driving chip IC 2 and/or described driving chip IC 4 are BTN7971 driving chip.
4. the two-way motor control module circuit as described in as arbitrary in claim 1-3, is characterized in that: described isolating chip U1 is 74LVC245 bus driver chip.
5. two-way motor control module circuit as claimed in claim 4, is characterized in that: described power module comprises current-limiting resistance R1, LED light D1, power connector P2, filter capacitor C2, filter capacitor C3, filter capacitor C4, filter capacitor C5 and voltage transitions chip U2;
Ground connection after described power connector P2, described filter capacitor C2, described filter capacitor C4 are connected with external power supply respectively; Described current-limiting resistance R1 one end is connected with described external power supply, ground connection after the other end is connected in series with described LED light D1; After being connected with described external power supply with tripod, passes through on the first pin of described voltage transitions chip U2 described filter capacitor C4 ground connection, the crus secunda ground connection of described voltage transitions chip U2, the 4th pin of described voltage transitions chip U2 is connected in series ground connection after described filter capacitor C5, ground connection after the 5th pin of described voltage transitions chip U2 is connected in series with described filter capacitor C3, the output that the 5th pin of described voltage transitions chip U2 is described power module, is connected respectively at described isolation module, described the first driver module and described the second driver module.
6. two-way motor control module circuit as claimed in claim 5, is characterized in that: described the first driver module and/or described the second driver module also comprise filter capacitor C11, filter capacitor C13, divider resistance R7, divider resistance R9, divider resistance R17, divider resistance R20;
The 6th pin of described driving chip IC 2 is connected with described divider resistance R9 with described resistance R 7, the other end ground connection of described divider resistance R9, ground connection after the other end of described resistance R 7 is connected in series with described filter capacitor C11;
The 6th pin of described driving chip IC 4 is connected with described divider resistance R20 with described resistance R 17, the other end ground connection of described divider resistance R20, ground connection after the other end of described resistance R 17 is connected in series with described filter capacitor C13.
7. the two-way motor control module circuit as described in claim 5 or 6, is characterized in that: described power module also comprises voltage stabilizing circuit.
8. two-way motor control module circuit as claimed in claim 7, is characterized in that: described voltage transitions chip U2 is MIC5219 power supply chip.
9. two-way motor control module circuit as claimed in claim 8, is characterized in that: described the first driver module and/or described the second driver module also comprise piezo-resistance Rv2 described piezo-resistance Rv2 and described the first motor and/or described the second motor parallel.
10. two-way motor control module circuit as claimed in claim 8 or 9, is characterized in that: the output voltage of described power module is 3.3V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420259377.4U CN203840245U (en) | 2014-05-21 | 2014-05-21 | Two-path motor control module circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420259377.4U CN203840245U (en) | 2014-05-21 | 2014-05-21 | Two-path motor control module circuit |
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| Publication Number | Publication Date |
|---|---|
| CN203840245U true CN203840245U (en) | 2014-09-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420259377.4U Expired - Lifetime CN203840245U (en) | 2014-05-21 | 2014-05-21 | Two-path motor control module circuit |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104009678A (en) * | 2014-05-21 | 2014-08-27 | 芜湖蓝宙电子科技有限公司 | Double-motor control module circuit |
| CN105843284A (en) * | 2016-06-07 | 2016-08-10 | 厦门生命之栖智能科技有限公司 | Constant temperature growing and cultivation precise spraying system |
-
2014
- 2014-05-21 CN CN201420259377.4U patent/CN203840245U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104009678A (en) * | 2014-05-21 | 2014-08-27 | 芜湖蓝宙电子科技有限公司 | Double-motor control module circuit |
| CN105843284A (en) * | 2016-06-07 | 2016-08-10 | 厦门生命之栖智能科技有限公司 | Constant temperature growing and cultivation precise spraying system |
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Effective date of registration: 20200508 Address after: 211300 floor 1, building 9, No. 168, Shuanggao Road, economic development zone, Gaochun District, Nanjing City, Jiangsu Province (Yangjiang Industrial Park) Patentee after: Lanzhou (Jiangsu) Technology Co.,Ltd. Address before: 241009 Anhui city of Wuhu Province Silver Lake Economic and Technological Development Zone North Software Park, C Park No. 211 Patentee before: LANDZO ELECTRONIC TECHNOLOGIES Co.,Ltd. |
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Denomination of utility model: Double motor control module circuit Effective date of registration: 20201028 Granted publication date: 20140917 Pledgee: Jiangsu Zijin rural commercial bank Limited by Share Ltd. branch of science and technology Pledgor: Lanzhou (Jiangsu) Technology Co.,Ltd. Registration number: Y2020980007317 |
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Date of cancellation: 20220119 Granted publication date: 20140917 Pledgee: Jiangsu Zijin rural commercial bank Limited by Share Ltd. branch of science and technology Pledgor: Lanzhou (Jiangsu) Technology Co.,Ltd. Registration number: Y2020980007317 |
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