CN204195043U - Ternary lithium battery welding machine - Google Patents
Ternary lithium battery welding machine Download PDFInfo
- Publication number
- CN204195043U CN204195043U CN201420659905.5U CN201420659905U CN204195043U CN 204195043 U CN204195043 U CN 204195043U CN 201420659905 U CN201420659905 U CN 201420659905U CN 204195043 U CN204195043 U CN 204195043U
- Authority
- CN
- China
- Prior art keywords
- constant current
- soldering turret
- lithium battery
- welding machine
- ternary lithium
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Secondary Cells (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
The utility model discloses a kind of ternary lithium battery welding machine, and it comprises: ternary lithium battery group, comprises some battery modules, and one end of some battery modules is connected to one of them of positive pole soldering turret and negative pole soldering turret respectively; Some striking switches, are serially connected in the other end of some battery modules and positive pole soldering turret and wherein between another of negative pole soldering turret respectively; Some constant flow modules, comprise the first constant current switch, the second constant current switch and energy storage device respectively, one end of first constant current switch and the second constant current switch is connected to wherein on another of positive pole soldering turret and negative pole soldering turret respectively by energy storage device, the other end of the first constant current switch is connected to corresponding battery module, and the other end of the second constant current switch is connected in one of them of positive pole soldering turret and negative pole soldering turret; Controller, it is for controlling cut-offfing of some striking switches, the first constant current switch and the second constant current switch.Ternary lithium battery welding machine security performance of the present utility model is high, and cost is low.
Description
Technical field
The utility model relates to a kind of electric welding machine, particularly relates to a kind of ternary lithium battery that utilizes as the mobile electric welding machine of power supply.
Background technology
Electric welding machine is that the high-temperature electric arc utilizing positive pole soldering turret and negative pole soldering turret to produce when instantaneous short circuit comes solder on consumable electrode and materials to be welded, reaches a kind of electric tool of the object making them combine.Common electric welding machine is generally utilize civil power as driving power, and its advantage is stable output, can continue a journey for a long time in theory when not power-off.But, in the application scenarios that some are special, such as, speedily carry out rescue work in the burst accidents such as repairing, the mains supply that may can not power; Further, this have rope electric welder no-load output voltage to be greater than DC60V, every year electric shock casualty accident all occurs.
For the problems referred to above, prior art provides and has such as used lead-acid battery as the portable electric welding machine of power supply, and it can meet certain application demand.But well-known, lead-acid battery volume and weight is large, is not convenient for carrying.
After 18650 dynamic lithium battery successful Application are on electric tool, sight has been aimed at the light wireless Portable electric welder that lithium battery can be used as power supply by mobile electric welding machine market.But, because such electric welding machine exists the safety protection problem of continuously adjustable High-current output problem, striking moment super-high-current problem, clip accidental short circuit, Cost Problems etc., so far in industry also not by matured product that market accepts.
In view of this, a kind of novel tertiary lithium battery welding machine is badly in need of to solve the problem.
Utility model content
The purpose of this utility model is to provide a kind of ternary lithium battery welding machine.
For realizing above-mentioned utility model object, the utility model provides a kind of ternary lithium battery welding machine, and it has positive pole soldering turret and negative pole soldering turret, and this ternary lithium battery welding machine comprises:
Ternary lithium battery group, it comprises some battery modules, and one end of described some battery modules is connected to one of them of described positive pole soldering turret and negative pole soldering turret respectively;
Some striking switches, it is serially connected in the other end of described some battery modules and described positive pole soldering turret and wherein between another of negative pole soldering turret respectively;
Some constant flow modules, it comprises the first constant current switch, the second constant current switch and energy storage device respectively, one end of described first constant current switch and the second constant current switch to be connected to described in described positive pole soldering turret and negative pole soldering turret wherein on another respectively by described energy storage device, the other end of described first constant current switch is connected to corresponding described battery module, and the other end of described second constant current switch is connected to the described on one of them of described positive pole soldering turret and negative pole soldering turret;
Controller, it is for controlling cut-offfing of described some striking switches, the first constant current switch and the second constant current switch.
As further improvement of the utility model, described striking switch is metal-oxide-semiconductor, and the grid of described some striking switches is connected with described controller.
As further improvement of the utility model, described ternary lithium battery welding machine also comprises striking switch drive, and described controller controls cut-offfing of described some striking switches respectively by described striking switch drive.
As further improvement of the utility model, described ternary lithium battery welding machine also comprises the some constant currents corresponding with described some constant flow modules and drives, and described controller is driven by described some constant current and controls cut-offfing of the first constant current switch described in described some constant flow modules and the second constant current switch respectively.
As further improvement of the utility model, between one of them of described some battery modules and described positive pole soldering turret and negative pole soldering turret, be serially connected with thermistor respectively.
As further improvement of the utility model, described thermistor is resettable fuse.
As further improvement of the utility model, described ternary lithium battery welding machine also comprises the detection module for detecting voltage and/or electric current between described positive pole soldering turret and negative pole soldering turret, and described controller is connected with described detection module.
As further improvement of the utility model, in described ternary lithium battery group, the quantity of battery module is 8-10 group.
Compared with prior art, the ternary lithium battery welding machine that the utility model provides is by the striking switch of virtual parallel and constant flow module, controller can be utilized to control cut-offfing of the first constant current switch and the second constant current switch in this striking switch and constant flow module, during striking, electric current in battery module accesses the both positive and negative polarity soldering turret of electric welding machine by striking switch and the first constant current switch, while guarantee High-current output, excessive burden can not be caused to current path, and when CONSTANT CURRENT WELDING, striking switch is turned off, cut-off by the complementation of the first constant current switch and the second constant current switch, realize battery modules and energy storage device to the energy supply proportion adjustment of the both positive and negative polarity soldering turret of electric welding machine, and then realize the CONSTANT CURRENT WELDING function of ternary lithium battery welding machine, and security is high, cost is lower.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only a kind of embodiment of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of the utility model ternary lithium battery welding machine one embodiment;
Fig. 2 is the flow chart of control method one embodiment of the utility model ternary lithium battery welding machine.
Detailed description of the invention
Below with reference to detailed description of the invention shown in the drawings, the utility model is described in detail.But these embodiments do not limit the utility model, the structure that those of ordinary skill in the art makes according to these embodiments, method or conversion functionally are all included in protection domain of the present utility model.
Further, in various embodiments, identical label or mark may be used, but this not representative structure or contact functionally, and be only used to the convenience of description.
Ginseng Fig. 1, introduces a detailed description of the invention of the utility model ternary lithium battery welding machine 100.In the present embodiment, this ternary lithium battery welding machine 100 comprises ternary lithium battery group 20, some striking switches 41, some constant flow modules 31 and controller 10.
Ternary lithium battery welding machine 100 has positive pole soldering turret 71 and negative pole soldering turret 72, in use, clamp welding rod between positive pole soldering turret 71 and negative pole soldering turret 72, cause high-temperature electric arc by momentary breaks, to melt the solder on welding rod, and and then target object is welded.
Ternary lithium battery group 20 comprises some battery modules 21, wherein, one end of this some battery module 21 is connected to one of them of positive pole soldering turret 71 and negative pole soldering turret 72 respectively, in the present embodiment, exemplarily, one end (negative pole) of this some battery module 21 is connected to the negative pole soldering turret 72 of ternary lithium battery welding machine 100 all respectively.Certainly, in the embodiment of other conversion, one end of this some battery module 21 also can be connected to the positive pole soldering turret 71 of ternary lithium battery welding machine 100 all respectively.
Preferably, in the present embodiment, the quantity of the some battery modules 21 in this ternary lithium battery group 20 is 8-10 group.The benefit done like this is, under the prerequisite meeting certain flying power, make the idle voltage output of ternary lithium battery welding machine 100 be less than or equal to DC42V(to be less than China 36V safe voltage standard hollow and to carry the standard that output voltage is less than or equal to 43V), like this, the potential safety hazard caused due to possible electric leakage accident can be avoided.Certainly, be understandable that, in the embodiment of other conversion, in ternary lithium battery group 20, the quantity of battery module 21 is meeting under the normal prerequisite used of ternary lithium battery welding machine 100, can be set to plurality of specifications as required.
Some striking switches 41 are serially connected in the other end of some battery modules 21 and positive pole soldering turret 71 and wherein between another of negative pole soldering turret 72 respectively.Adaptively, in the present embodiment, some striking switches 41 are serially connected between the other end (positive pole) of some battery modules 21 and positive pole soldering turret 71 respectively.
Preferably, in the present embodiment, this striking switch 41 is metal-oxide-semiconductor (Metal-Oxide-Semiconductor Field-Effect Transistor, MOSFET).In the application of reality, NMOS tube or PMOS can be selected as this switching device, exemplarily, here to select NMOS as striking switch, the source electrode of this striking switch 41 and drain electrode can be connected respectively positive pole and the positive pole soldering turret 71 of as dry cell module 21, to realize serial connection.
Owing to have employed the connected mode of above-mentioned striking switch 41, directly not in parallel between some striking switches 41, but the output of some striking switches 41 is realized " parallel connection ", utilize the output of the multiple battery module 21 of multiple striking switch 41 difference load, realize the big current supply of ternary lithium battery welding machine 100, the connected mode of this striking switch 41 is also called " virtual parallel ".When the battery module 21 in ternary lithium battery group 20 powers to ternary lithium battery welding machine 100 by striking switch 41, the High-current output of 500A required when can realize striking.
Constant flow module 31 comprises the first constant current switch 311, second constant current switch 312 and energy storage device 313, one end of first constant current switch 311 and the second constant current switch 312 is connected to wherein on another of positive pole soldering turret 71 and negative pole soldering turret 72 respectively by energy storage device 313, adaptively, in the present embodiment, for being connected on positive pole soldering turret 71.The other end of the first constant current switch 311 is connected to corresponding battery module, and the other end of the second constant current switch 312 is connected on negative pole soldering turret 72.
Controller 10 is for controlling cut-offfing of some striking switches 41 and some constant flow modules 31.Controller 10 can be the integrated circuit comprising microcontroller (Micro Controller Unit, MCU).Well-known to those skilled in the artly be, microcontroller can comprise CPU (Central Processing Unit, CPU), read-only memory module (Read-Only Memory, ROM), random memory module (Random Access Memory, RAM), time block, digital-to-analogue conversion module (A/D Converter) and some input/output end ports.Certainly, control device also can adopt the integrated circuit of other form, as application-specific IC (Application Specific Integrated Circuits, ASIC) or field programmable gate array (Field-programmable Gate Array, FPGA) etc.
In the present embodiment, controller 10 is connected to the grid of above-mentioned some striking switches 41, to realize the control of cut-offfing to striking switch 41.Particularly, ternary lithium battery welding machine 100 also comprises striking switch drive 42, and controller 10 controls cut-offfing of above-mentioned some striking switches 41 respectively by this striking switch drive 42.Similarly, ternary lithium battery welding machine 100 also comprises the some constant currents corresponding with some constant flow modules 31 and drives 32, and controller 10 drives 32 to control cut-offfing of above-mentioned some first constant current switches 311 and the second constant current switch 312 respectively by this some constant current.
Thermistor is serially connected with respectively between one of them of some battery modules 21 and positive pole soldering turret 71 and negative pole soldering turret 72.When striking switch 41 lost efficacy (short circuit) or positive and negative electrode soldering turret 72 accidental short circuit; the thermistor of this serial connection can carry out overtemperature protection fast; here thermistor preferably adopts resettable fuse; this is the semiconductor resistor that a kind of typical case has temperature sensitivity; when exceeding certain temperature (Curie temperature), its resistance value along with the rising of temperature be increasing of step evolution.
Ternary lithium battery welding machine 100 also comprises the detection module 60 for detecting voltage and/or electric current between positive pole soldering turret 71 and negative pole soldering turret 72, and controller 10 is connected with this detection module 60.When this detection module 60 detects that the voltage between positive pole soldering turret 71 and negative pole soldering turret 72 or electric current exceed predetermined threshold value, controller 10 can control striking switch 41 and disconnect, now, because all metal-oxide-semiconductors of electric current that provides all do not have directly parallel connection, and each road independently DC/DC step-down constant-current supply loop (wire that battery module 21-constant current drives 32-constant flow module 31-to connect) all there is larger internal resistance impedance, metal-oxide-semiconductor in last constant flow module 31 disconnected would not have excessive electric current to flow through, thus ensure that metal-oxide-semiconductor wherein can not be burned, reduce the maintenance cost of equipment.
In use procedure, when starting to weld, controller 10 controls striking switch 41 and the first constant current switch 311 and opens and control the second constant current switch 312 simultaneously and turn off, now, battery module 21 in ternary lithium battery group 20 exports, with instantaneous striking to the supply of ternary lithium battery welding machine 100 by striking switch 41 and the first constant current switch 311; When after striking success, controller 10 controls striking switch 41 and disconnects and control the first constant current switch 311 and the second constant current switch 312 complementation is cut-off simultaneously, now, feed back the current value between positive pole soldering turret 71 and negative pole soldering turret 72 according to detection module 60, the switch off time of the first constant current switch 311 and the second constant current switch 312 is regulated and controled.Due to the first constant current switch 311 open time, electric welding machine is powered by battery pack 20 wherein, and the second constant current switch 312 is when opening, electric welding machine is powered by energy storage device 313 wherein, the power supply capacity of battery pack 20 is greater than the power supply capacity of energy storage device 313, therefore by adjustment first constant current switch 311 and the second constant current switch 312 points of other switch off time, the electric current of butt welding tongs end can carry out corresponding adjustment, opening time shared by first constant current switch 311 is longer, then soldering turret output current is larger, and vice versa.User can regulate electric current during CONSTANT CURRENT WELDING according to the demand of reality, and in the present embodiment, the current continuity that can realize 80A/23V to 300A/28V is adjustable.In concrete application process, controller 10 is by PWM(pulse width modulation) mode drive 32 to regulate and control to constant current, particularly, by the dutycycle of regulation output signal, and then corresponding adjustment first constant current switch 311 and the respective switch off time of the second constant current switch 312.Described energy storage device 313 such as can select inductance, in certain interchangeable embodiment, also can select the energy storage device that electric capacity etc. is common.
Ginseng Fig. 2, introduces a detailed description of the invention of the utility model ternary lithium battery welding machine control method.In the present embodiment, the method comprises the following steps:
Reception control signal, this control signal can be such as operating personnel according to concrete welding situation, controlled to send by outside operating element.
If described control signal is striking signal, described controller controls described striking switch and the first constant current switch is opened and controls described second constant current switch shutoff; If described control signal is CONSTANT CURRENT WELDING signal, described controller controls described striking switch OFF and controls described first constant current switch and the second constant current switch complementation is cut-off.
Meanwhile, in the striking stage, the method also comprises:
Receiving circuit load signal, this circuit load signal is sent by above-mentioned detection module 60, if the circuit load value that described load signal characterizes exceedes predetermined threshold value, described controller controls described striking switch OFF.In one embodiment, this load signal can be the value characterizing voltage or electric current between positive pole soldering turret and negative pole soldering turret, when it exceedes predetermined threshold value, controller controls striking switch and disconnects, now, because all metal-oxide-semiconductors of electric current that provides all do not have directly parallel connection, and each road independently DC/DC step-down constant-current supply loop (wire of battery module-constant current driving-constant flow module-connection) all there is larger internal resistance impedance, metal-oxide-semiconductor in last constant flow module disconnected would not have excessive electric current to flow through, thus ensure that metal-oxide-semiconductor wherein can not be burned.
The characteristic index of the ternary lithium battery welding machine that the utility model provides is as follows:
Floating voltage (DC): 36V-42V;
Output current scope (A): 80A-250A;
Output voltage range (V): 26V-30V;
Striking electric current (A): 500A;
Initial time (S): 0.5S-1.0S;
Start power supply (KVA): 12KVA;
Thrust regulates: 1.25 times of output current;
The thrust time (S): 0.5S-1.0S;
Gross weight (Kgs): 15 kilograms;
As can be seen from above-mentioned index, the ternary lithium battery welding machine that the utility model provides under the prerequisite meeting portability demand, can provide good flying power.
The utility model is by above-mentioned embodiment, there is following beneficial effect: the ternary lithium battery welding machine that the utility model provides is by the striking switch of virtual parallel and constant flow module, controller can be utilized to control cut-offfing of the first constant current switch and the second constant current switch in this striking switch and constant flow module, during striking, electric current in battery module accesses the both positive and negative polarity soldering turret of electric welding machine by striking switch and the first constant current switch, while guarantee High-current output, excessive burden can not be caused to current path, and when CONSTANT CURRENT WELDING, striking switch is turned off, cut-off by the complementation of the first constant current switch and the second constant current switch, realize battery modules and energy storage device to the energy supply proportion adjustment of the both positive and negative polarity soldering turret of electric welding machine, and then realize the CONSTANT CURRENT WELDING function of ternary lithium battery welding machine, and security is high, cost is lower.
Be to be understood that, although this description is described according to embodiment, but not each embodiment only comprises an independently technical scheme, this narrating mode of description is only for clarity sake, those skilled in the art should by description integrally, technical scheme in each embodiment also through appropriately combined, can form other embodiments that it will be appreciated by those skilled in the art that.
A series of detailed description listed is above only illustrating for feasibility embodiment of the present utility model; they are also not used to limit protection domain of the present utility model, all do not depart from the utility model skill equivalent implementations of doing of spirit or change all should be included within protection domain of the present utility model.
Claims (8)
1. a ternary lithium battery welding machine, it has positive pole soldering turret and negative pole soldering turret, it is characterized in that, this ternary lithium battery welding machine comprises:
Ternary lithium battery group, it comprises some battery modules, and one end of described some battery modules is connected to one of them of described positive pole soldering turret and negative pole soldering turret respectively;
Some striking switches, it is serially connected in the other end of described some battery modules and described positive pole soldering turret and wherein between another of negative pole soldering turret respectively;
Some constant flow modules, it comprises the first constant current switch, the second constant current switch and energy storage device respectively, one end of described first constant current switch and the second constant current switch to be connected to described in described positive pole soldering turret and negative pole soldering turret wherein on another respectively by described energy storage device, the other end of described first constant current switch is connected to corresponding described battery module, and the other end of described second constant current switch is connected to the described on one of them of described positive pole soldering turret and negative pole soldering turret;
Controller, it is for controlling cut-offfing of described some striking switches, the first constant current switch and the second constant current switch.
2. according to ternary lithium battery welding machine according to claim 1, it is characterized in that, described striking switch is metal-oxide-semiconductor, and the grid of described some striking switches is connected with described controller.
3. according to ternary lithium battery welding machine according to claim 1, it is characterized in that, described ternary lithium battery welding machine also comprises striking switch drive, and described controller controls cut-offfing of described some striking switches respectively by described striking switch drive.
4. according to ternary lithium battery welding machine according to claim 1, it is characterized in that, described ternary lithium battery welding machine also comprises the some constant currents corresponding with described some constant flow modules and drives, and described controller is driven by described some constant current and controls cut-offfing of the first constant current switch described in described some constant flow modules and the second constant current switch respectively.
5. according to ternary lithium battery welding machine according to claim 1, it is characterized in that, between one of them of described some battery modules and described positive pole soldering turret and negative pole soldering turret, be serially connected with thermistor respectively.
6. according to ternary lithium battery welding machine according to claim 5, it is characterized in that, described thermistor is resettable fuse.
7. according to ternary lithium battery welding machine according to claim 1, it is characterized in that, described ternary lithium battery welding machine also comprises the detection module for detecting voltage and/or electric current between described positive pole soldering turret and negative pole soldering turret, and described controller is connected with described detection module.
8. according to ternary lithium battery welding machine according to claim 1, it is characterized in that, in described ternary lithium battery group, the quantity of battery module is 8-10 group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420659905.5U CN204195043U (en) | 2014-11-07 | 2014-11-07 | Ternary lithium battery welding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420659905.5U CN204195043U (en) | 2014-11-07 | 2014-11-07 | Ternary lithium battery welding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204195043U true CN204195043U (en) | 2015-03-11 |
Family
ID=52653042
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420659905.5U Active CN204195043U (en) | 2014-11-07 | 2014-11-07 | Ternary lithium battery welding machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204195043U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104384689A (en) * | 2014-11-07 | 2015-03-04 | 苏州中元动力科技有限公司 | Ternary lithium cell electric welder and control method thereof |
-
2014
- 2014-11-07 CN CN201420659905.5U patent/CN204195043U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104384689A (en) * | 2014-11-07 | 2015-03-04 | 苏州中元动力科技有限公司 | Ternary lithium cell electric welder and control method thereof |
| CN104384689B (en) * | 2014-11-07 | 2017-02-15 | 苏州新逸喆电子科技有限公司 | Ternary lithium cell electric welder and control method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102170178B (en) | High-voltage transmission line current coupling electricity-getting device | |
| CN203289315U (en) | Novel frequency converter precharge circuit control system | |
| CN203843347U (en) | Portable off-grid type direct-current arc welding machine with built-in lithium battery pack | |
| CN203984066U (en) | Intelligent charger circuit | |
| TWM484846U (en) | Active charge balancing system of lithium battery set | |
| CN206865176U (en) | High pressure lithium battery pack charge-discharge control system | |
| CN204195043U (en) | Ternary lithium battery welding machine | |
| CN103457472A (en) | Switching power supply and lamp applying same | |
| TW202002452A (en) | Dual voltage battery pack | |
| CN104384689A (en) | Ternary lithium cell electric welder and control method thereof | |
| CN104218648A (en) | Charging and discharging protection circuit and charging and discharging system | |
| CN204603539U (en) | A kind of A.C. welder energy-saving protective control circuit | |
| CN101257216A (en) | Positive and negative combined pulse charge restoring machine | |
| CN202206178U (en) | AC/DC charging supply | |
| CN203135546U (en) | Activation charger for transformer substation storage battery | |
| CN205753366U (en) | A kind of battery output short-circuit protection circuit | |
| CN101936247B (en) | Ignition device for electric heating engine of instrumental model airplane | |
| CN104505927A (en) | Flyback charging circuit, and control method and device for flyback charging circuit | |
| CN204879473U (en) | Multifunction torch | |
| CN206316513U (en) | A kind of electric welding machine safety control | |
| CN204789865U (en) | Testing arrangement is assisted in route selection of direct current ground connection | |
| CN204465888U (en) | A kind of intelligent router circuit | |
| CN102638066A (en) | Electrodeless safety charger circuit | |
| WO2016015434A1 (en) | Ternary lithium battery electric welding machine and control method therefor | |
| CN202153656U (en) | Switch power supply charger |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: XINYIZHE ELECTRONIC TECH CO., LTD., SUZHOU Free format text: FORMER OWNER: SUZHOU ZHONGYUAN POWER TECHNOLOGY CO., LTD. Effective date: 20150716 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150716 Address after: 215100 Xinhua Road, Jiangsu, Xiangcheng District, Suzhou Town, No. 68 Patentee after: Xinyizhe Electronic Tech Co., Ltd., Suzhou Address before: 215000 98 deer Road, hi tech Development Zone, Jiangsu, Suzhou Patentee before: SUZHOU CHINA POWER TECHNOLOGY CO., LTD. |