CN103730784A - Socket for eliminating electric spark - Google Patents
Socket for eliminating electric spark Download PDFInfo
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- CN103730784A CN103730784A CN201410045437.7A CN201410045437A CN103730784A CN 103730784 A CN103730784 A CN 103730784A CN 201410045437 A CN201410045437 A CN 201410045437A CN 103730784 A CN103730784 A CN 103730784A
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Abstract
The invention relates to a socket for eliminating electric spark. The socket comprises a power supply socket and a socket arranged on an appliance for getting electricity. The socket can be applied to getting electricity by an appliance in a flammable and combustible occasion or an electricity getting design of an explosion-proof electric apparatus. The socket is characterized in that an access of at least one group of socket contacts is provided with a first socket contact, a second socket contact and a current-limiting resistor, and the second socket contact is connected with the first socket contact by virtue of the current-limiting resistor. Furthermore, the current-limiting resistor adopts a positive or negative temperature coefficient thermistor. The socket has the beneficial effects that firstly, as a power supply socket, electric spark generated by inserting or extracting a plug can be eliminated, the contacts are prevented from being eroded and brunt, and the socket is suitable for being used in an explosion-proof occasion; secondly, as the electricity getting socket of the explosion-proof electric apparatus, and electric spark generated by inserting or extracting a power supply plug can be effectively prevented.
Description
Technical field
The present invention relates to a kind of socket of eliminating electric spark, comprise supply socket and be arranged on the socket for power taking on electrical equipment, can be applied to the electrical equipment power taking in inflammable and explosive place, or design for the power taking of explosion-proof electric apparatus.
Background technology
Appliance plug is inserted to the moment of socket, owing to there being a larger starting current, at contact point, can produce spark and produce heat, along with the stable contact of plug and socket contact, spark and heat disappear thereupon, when appliance plug is extracted socket, often due to the existence of load, moment in contact separation also can produce spark, due to the existence of electric spark, can constantly corrode socket contact sheet and the header contact of socket, when serious, can burn out socket contact sheet and header contact, in addition, in spark and the very easily explosion caused accident of heat of inflammable and explosive place power contact.
Along with at oil, the application of petrochemical industry new technology, particularly information-based computer application, as: on-line analysis instrument, computer, PLC, active station, chargeable electric torch used in everyday, wireless interspeaker, notebook computers etc. all can run into power taking or charging problem, because existing charging adapter is not all considered Explosion-proof Design (maybe can not carry out Explosion-proof Design), in the moment of inserting or extracting socket, can produce contact sparking, if directly use easy explosion caused accident in anti-explosion area, adopt electrical equipment plug-in socket of the present invention can effectively eliminate electrical equipment and obtain the electric spark that electricity moment causes.
Because the starting current of electric equipment products is generally larger, the surge current of generation can produce harm to electrical equipment itself, also can disturb the normal operation of electrical network.
Summary of the invention
Thinking of the present invention is: when plug insertion socket, by current-limiting resistance, make to be limited in less scope by the immediate current between socket contact sheet and header contact; when pulling away socket, plug prevents current break by current-limiting resistance; so just avoided the generation of electric spark; thereby protected contact, and be applicable to the use of explosion-proof place.
Technical scheme of the present invention is:
Eliminate a socket for electric spark, comprise socket contact sheet path, it is characterized in that: at least one group of socket contact sheet path has the first socket contact sheet, the second socket contact sheet, current-limiting resistance, described the second socket contact sheet is connected with the first socket contact sheet by described current-limiting resistance.
Described a kind of socket of eliminating electric spark, is characterized in that: in the circuit of described current-limiting resistance, be also connected in series resettable fuse.
Described a kind of socket of eliminating electric spark, is characterized in that: described resettable fuse is macromolecule organic PTC.
Described a kind of socket of eliminating electric spark, is characterized in that: one group of described socket contact sheet path also has the 3rd socket contact sheet and is connected to another current-limiting resistance on described the 3rd socket contact sheet, and described another current-limiting resistance other end is connected with the first socket contact sheet.
Described a kind of socket of eliminating electric spark, is characterized in that: described current-limiting resistance is negative tempperature coefficient thermistor.
Described a kind of socket of eliminating electric spark, is characterized in that: described negative tempperature coefficient thermistor is NTC thermistor.
Described a kind of socket of eliminating electric spark, is characterized in that: described current-limiting resistance is semistor.
Described a kind of socket of eliminating electric spark, is characterized in that: described semistor is PTC thermistor.
Described a kind of socket of eliminating electric spark, is characterized in that: described current-limiting resistance nominal value range is 0.5K ~ 5K.
Described a kind of socket of eliminating electric spark, is characterized in that: described current-limiting resistance nominal value range is 0.5 ohm ~ 100 ohm.
Described a kind of socket of eliminating electric spark, is characterized in that: one group of described socket contact sheet path has more than three socket contact sheet and is connected to the corresponding current-limiting resistance on described socket contact sheet, and the described corresponding current-limiting resistance other end is connected with the first socket contact sheet.
The invention has the beneficial effects as follows: 1, as supply socket, can eliminate plug and insert, extract the electric spark of generation, avoid contact to corrode and burn out, and be applicable to the use of explosion-proof place; 2, as explosion-proof electric apparatus plug-in socket, can effectively prevent the electric spark that attaching plug produces when inserting, extracting; 3, eliminate the harm that surge current produces electrical equipment, avoid interference the normal operation of electrical network.
Accompanying drawing explanation
Fig. 1 is existing Switching Power Supply front end rectification circuit.
Fig. 2 is conventional socket and plug contact process electric parameter variation diagram.
Fig. 3 is the present invention's two contact power sour socket structure charts.
Fig. 4 is the second socket contact sheet and the header contact contact condition figure (t1-t2 period in corresponding diagram 6) of the present invention's two contact power sour sockets.
Fig. 5 is the first socket contact sheet and the header contact contact condition figure (t3-t4 period in corresponding diagram 6) of the present invention's two contact power sour sockets.
Fig. 6 is socket of the present invention and plug contact process electric parameter variation diagram (two contacts).
Fig. 7 is that the present invention is the present invention's three contact power sour socket structure charts.
Fig. 8 is the 3rd socket contact sheet and the header contact contact condition figure of the present invention's three contact power sour sockets.
Fig. 9 is the second socket contact sheet and the header contact contact condition figure of the present invention's three contact power sour sockets.
Figure 10 is the first socket contact sheet and the header contact contact condition figure of the present invention's three contact power sour sockets.
Figure 11 is the present invention's explosion-proof electric apparatus plug-in socket structure chart.
Figure 12 is the second socket contact sheet and the header contact contact condition figure of the present invention's explosion-proof electric apparatus plug-in socket.
Figure 13 is the first socket contact sheet and the header contact contact condition figure of the present invention's explosion-proof electric apparatus plug-in socket.
Figure 14 is the embodiment that is connected in series resettable fuse in current-limiting resistance circuit of the present invention.
Embodiment
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is existing Switching Power Supply front end rectification circuit.In Fig. 1,220V alternating current accesses rectification circuit by fuse F, the full-wave bridge rectifier circuit being formed by D1, D2, D3, D4 rectifier diode, and capacitor C is filter capacitor.Most power supply all adopts Switching Power Supply, and as laptop electric power, mobile phone charge power supply, general power is tens watts, the about hundreds of milliampere of rated current, the about 1K of equivalent resistance left and right.The moment of inserting supply socket such as the power adapter plug of notebook computer has explosion sound and follows electric spark, is because filter capacitor is generally larger, and the moment of charging at filter capacitor can produce due to larger electric current.
Powering up of high-power electric appliance also can produce electric spark in addition.
The starting current of electric equipment products is generally larger, can produce electric spark, and surge current can produce harm to electrical equipment itself simultaneously, also can disturb the normal operation of electrical network.
Fig. 2 is conventional socket and plug contact process electric parameter variation diagram.Suppose to have a Switching Power Supply to insert conventional electrical outlet, the 201st, the change in voltage figure between supply socket contact and header contact, the 202nd, the curent change figure passing through, before supply socket contact contacts with header contact, voltage is the 220V(0-t1 time period), t1 is supply socket contact and header contact point time of contact, now by electric current, reach immediately maximum point Imax, afterwards along with the charging of filter capacitor C, electric current declines, ultimate current is the rated current Ir of electrical equipment, the equivalent rated resistance of supposing electrical equipment is Rr, : Ir=220/Rr, touch voltage after t2 time point is stable between supply socket contact and header contact reduces to 0, i.e. stable contact.
Fig. 3 is the present invention's two contact power sour socket structure charts.In Fig. 3, 101 is supply socket, in supply socket, there are two groups of socket contact sheet paths, one group is L path, another group is N path, in supply socket 101, L path includes the first socket contact sheet 102, current-limiting resistance 103(resistance R), the second socket contact sheet 104, the second socket contact sheet 104 is connected with the first socket contact sheet 102 by current-limiting resistance 103, the first socket contact sheet 102 is connected to the L end (live wire end) of power supply, in like manner, another group is N path, N(zero line side with power supply) end be connected, N path can be symmetrical identical with L access structure, also can remove N path current-limiting resistance and the first socket contact sheet is directly connected (in figure, dotted line represents) with the second socket contact sheet.105 is traditional plug, and 106 is header contact (L end), and 107 is plug lead wire.In supply socket of the present invention, grounding wafer path does not mark.
Eliminate a socket for electric spark, comprise socket contact sheet path, it is characterized in that: at least one group of socket contact sheet path has the first socket contact sheet, the second socket contact sheet, current-limiting resistance, described the second socket contact sheet is connected with the first socket contact sheet by described current-limiting resistance.
Fig. 4 is the second socket contact sheet and the header contact contact condition figure (t1-t2 period in corresponding diagram 6) of the present invention's two contact power sour sockets.
Fig. 5 is the first socket contact sheet and the header contact contact condition figure (t3-t4 period in corresponding diagram 6) of the present invention's two contact power sour sockets.
Fig. 6 is socket of the present invention and plug contact process electric parameter variation diagram (two contacts).The state of t1 – t2 time period corresponding diagram 4, when header contact contacts with the second socket contact sheet, do not consider N end current-limiting resistance (adopting dotted line scheme), maximum charging current can not exceed I=220/R, the general current switching that produces electric spark is more than 100mA, if select R=3K, maximum current is 220V/3K=73mA moment, be less than the electric current of make-and-break that produces electric spark, between t2-t3 time period contact, voltage is U=220*R/ (R+Rr), and electric current is I=220/ (R+Rr).The state of t3-t4 time period corresponding diagram 5, when header contact continuation insertion contacts with the first socket contact sheet, between contact, voltage drop is 0, the normal rating electric current I r that is electrical equipment by electric current.
Fig. 7 is that the present invention is the present invention's three contact power sour socket structure charts.Consider the voltage gradient between further reduction contact, can increase the quantity of socket contact sheet and current-limiting resistance, in Fig. 7, increase current-limiting resistance 701 and the 3rd socket contact sheet 702.The quantity that further can continue to increase socket contact sheet and current-limiting resistance, quantity does not limit.
Described a kind of socket of eliminating electric spark, is characterized in that: one group of described socket contact sheet path also has the 3rd socket contact sheet and is connected to another current-limiting resistance on described the 3rd socket contact sheet, and described another current-limiting resistance other end is connected with the first socket contact sheet.
Described a kind of socket of eliminating electric spark, is characterized in that: one group of described socket contact sheet path also has more than three socket contact sheet and is connected to the corresponding current-limiting resistance on described socket contact sheet, and the described corresponding current-limiting resistance other end is connected with the first socket contact sheet.
Fig. 8 is the 3rd socket contact sheet and the header contact contact condition figure of the present invention's three contact power sour sockets.
Fig. 9 is the second socket contact sheet and the header contact contact condition figure of the present invention's three contact power sour sockets.
Figure 10 is the first socket contact sheet and the header contact contact condition figure of the present invention's three contact power sour sockets.
Figure 11 is the present invention's explosion-proof electric apparatus plug-in socket structure chart.Consider the employing socket supply power mode that existing explosion-proof electric apparatus has, as explosion-proof notebook, explosion-proof Communication Equipment, the plug-in socket of explosion-proof electric apparatus is designed at least two socket contact sheet structures, 1101 is explosion-proof electric apparatus plug-in socket, and 1102 is cathode contact, and 1103 is the first socket contact sheet, 1104 is current-limiting resistance, 1105 is the second socket contact sheet, and 1106 is plug, and 1107 is power supply adaptor.
Figure 12 is the second socket contact sheet and the header contact contact condition figure of the present invention's explosion-proof electric apparatus plug-in socket.
Figure 13 is the first socket contact sheet and the header contact contact condition figure of the present invention's explosion-proof electric apparatus plug-in socket.
Current-limiting resistance resistance of the present invention is as qualifications of the present invention, also condition not as limiting to the invention of socket contact sheet quantity of the present invention.
Current-limiting resistance of the present invention is one of following or combination: fixed resistance, negative tempperature coefficient thermistor, semistor.Negative tempperature coefficient thermistor is as NTC thermistor, and semistor is as PTC thermistor, and PTC thermistor comprises that resettable fuse is macromolecule organic PTC.
Described current-limiting resistance adopts negative tempperature coefficient thermistor, along with temperature increases, resistance reduces, such as existing power-type NTC thermistor, when the second socket contact sheet and header contact Contact NTC thermistor resistance maximum, by electric current minimum, along with increasing and resistance reduces by temperature of electric current, ultimate current reaches maximum, the final resistance of General N TC thermistor is smaller, by electric current, approach the rated current of load, along with header contact contacts with the first socket contact sheet, NTC thermistor is ineffective by short circuit, plug and socket formally contacts and normally works.Here because NTC thermistor is just in the work of the moment of plug insertion socket, is idle at ordinary times, thereby has extended the useful life of NTC thermistor.For example: NTC thermistor is chosen existing 3.3K nominal value, B constant 3950K, when temperature 25 is spent, resistance value is 3.3K, when temperature rise to 125 is spent, resistance value is 0.113K, by calculating (not considering load): 25 electric currents while spending are 220V/3.3K=66.7 milliampere, 125 electric currents while spending are 220V/0.113K=1947 milliampere, consider the existence of load, when the second socket contact sheet and plug Contact maximum current are no more than 66.7 milliamperes, along with the rising of NTC thermistor temp, resistance reduces, by electric current, increase, maximum current can not exceed the rated current of load, when the first socket contact sheet contacts with header contact, load obtains normal rated current, NTC thermistor quits work simultaneously.Can find out that whole process has reduced pick-up current effectively, avoid because of the charging current of electric capacity existence and the surge current of appliance starting.
Described current-limiting resistance adopts semistor, along with temperature increases, resistance increases, such as existing PTC thermistor, when the second socket contact sheet and header contact Contact PTC thermistor resistance minimum, by electric current maximum, along with increasing and resistance increase by temperature of electric current, at this moment completed the charging process of electric capacity in electrical appliance, along with header contact contacts with the first socket contact sheet, PTC thermistor is ineffective by short circuit, and plug and socket formally contacts and normally works.The benefit that adopts PTC thermistor is that the current-limiting resistance that may cause in the time of can avoiding the plug insertion socket of high-power electric appliance is overheated.For example: PTC thermistor is chosen existing 3.3K nominal value, temperature coefficient of resistance 10[[%]]/℃, when temperature 25 is spent, resistance value is 3.3K, when temperature rise to 45 is spent, resistance value is about 22K, by calculating (not considering load): 25 electric currents while spending are 220V/3.3K=66.7 milliampere, 45 electric currents while spending are 220V/22K=10 milliampere, consider the existence of load, when the second socket contact sheet and plug Contact maximum current are no more than 66.7 milliamperes, along with PTC thermistor temp rises and resistance increase, 45 electric currents while spending are about 10 milliamperes, resistance dissipation power is very low, can not produce larger intensification, when the first socket contact sheet contacts with header contact, load obtains normal rated current, PTC thermistor quits work simultaneously.Can find out that whole process has reduced pick-up current effectively, avoid because of the charging current of electric capacity existence and the surge current of appliance starting.
Figure 14 is the embodiment that is connected in series resettable fuse in current-limiting resistance circuit of the present invention.Resettable fuse is a kind of macromolecule organic PTC resistance, demarcating, the following resistance value of temperature is minimum, thereby when self-heating or ambient temperature reach while demarcating temperature its resistance value, sharply rise and play the effect of fuse, resettable fuse can be changed its thermal inertia and realized by the heat radiation that changes himself delay time of current blocking.In Figure 14,103 is current-limiting resistance, it can be fixed resistance, or NTC thermistor, or PTC thermistor, 1401 is resettable fuse, current-limiting resistance 103 and resettable fuse 1401 are installed together, select to demarcate the resettable fuse of temperature (such as 60 degree), generally header contact and the second socket contact sheet are very short 104 times of contact, so the heating of current-limiting resistance 103 is little, if there is header contact and the second socket contact sheet very long situation 104 times of contact, when current-limiting resistance 103 temperature reach 60 degree, resettable fuse 1401 will be blocked electric current.In Figure 14,1402 is the another kind of socket contact sheet of N path, and this socket contact sheet is straight-through socket contact sheet.
The specified equivalent resistance of supposing electrical appliance is Rr, voltage is 220V, the dissipation power of current-limiting resistance R is: R*220^2* (R+Rr) ^ (2), due to electrical appliance power difference, so the specified equivalent resistance of electrical appliance is also different, consider at present conventional laptop electric power power 10W ~ 100W, selecting the nominal value of current-limiting resistance is 0.5K ~ 5K, about 10W ~ the 100W of dissipation power, resettable fuse nominal temperature is chosen as 60 degree ~ 100 degree.
As a kind of specific embodiments of power extension socket: the supply socket jack of different capacity is set, and in 500W, the scope that the nominal value of selecting current-limiting resistance is 0.5K ~ 5K, such as selecting the fixed resistance of 3.3K; The nominal value of high-power electric appliance (500W ~ 2500W) selection current-limiting resistance is the scope of 0.5 ohm ~ 100 ohm, such as selecting 30 ohm of NTC thermistors (model 30D-9), approximately 1 ohm of residual resisitance.
Claims (9)
1. eliminate the socket of electric spark for one kind, comprise socket contact sheet path, it is characterized in that: at least one group of socket contact sheet path has the first socket contact sheet, the second socket contact sheet, current-limiting resistance, described the second socket contact sheet is connected with the first socket contact sheet by described current-limiting resistance.
2. a kind of socket of eliminating electric spark according to claim 1, is characterized in that: in the circuit of described current-limiting resistance, be also connected in series resettable fuse.
3. a kind of socket of eliminating electric spark according to claim 2, is characterized in that: described resettable fuse is macromolecule organic PTC.
4. a kind of socket of eliminating electric spark according to claim 1, it is characterized in that: one group of described socket contact sheet path also has the 3rd socket contact sheet and is connected to another current-limiting resistance on described the 3rd socket contact sheet, and described another current-limiting resistance other end is connected with the first socket contact sheet.
5. according to a kind of socket of eliminating electric spark described in claim 1 or 2 or 3 or 4, it is characterized in that: described current-limiting resistance is negative tempperature coefficient thermistor.
6. a kind of socket of eliminating electric spark according to claim 5, is characterized in that: described negative tempperature coefficient thermistor is NTC thermistor.
7. according to a kind of socket of eliminating electric spark described in claim 1 or 2 or 3 or 4, it is characterized in that: described current-limiting resistance is semistor.
8. a kind of socket of eliminating electric spark according to claim 7, is characterized in that: described semistor is PTC thermistor.
9. according to a kind of socket of eliminating electric spark described in claim 1 or 2 or 3 or 4 or 6 or 8, it is characterized in that: one group of described socket contact sheet path has more than three socket contact sheet and is connected to the corresponding current-limiting resistance on described socket contact sheet, and the described corresponding current-limiting resistance other end is connected with the first socket contact sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410045437.7A CN103730784B (en) | 2014-01-19 | 2014-02-08 | A kind of socket eliminating electric spark |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2014100220637 | 2014-01-19 | ||
| CN201410022063.7 | 2014-01-19 | ||
| CN201410022063 | 2014-01-19 | ||
| CN201410045437.7A CN103730784B (en) | 2014-01-19 | 2014-02-08 | A kind of socket eliminating electric spark |
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| Publication Number | Publication Date |
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| CN103730784A true CN103730784A (en) | 2014-04-16 |
| CN103730784B CN103730784B (en) | 2016-12-07 |
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| CN201410045437.7A Expired - Fee Related CN103730784B (en) | 2014-01-19 | 2014-02-08 | A kind of socket eliminating electric spark |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105610019A (en) * | 2014-11-05 | 2016-05-25 | 华为数字技术（苏州）有限公司 | Socket, plug virtual-plugging detection circuit, plug virtual-plugging detection device and plug virtual-plugging detection method |
| CN106450071A (en) * | 2015-08-04 | 2017-02-22 | 南京德朔实业有限公司 | Battery pack, battery pack and electric tool composition, and method for connecting battery pack and electric tool |
| CN107004986A (en) * | 2014-11-28 | 2017-08-01 | 富士通电子零件有限公司 | Connector |
| CN107134683A (en) * | 2016-02-26 | 2017-09-05 | 泰科电子(上海)有限公司 | Power connector |
| CN107658595A (en) * | 2017-08-30 | 2018-02-02 | 珠海格力电器股份有限公司 | It is segmented safety socket and plug |
Families Citing this family (1)
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| WO2023051957A1 (en) * | 2021-09-30 | 2023-04-06 | Eaton Intelligent Power Limited | Electrical connection arrangement for reducing arc energy and erosion in a contact system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997007571A1 (en) * | 1995-08-11 | 1997-02-27 | Maspro Denkoh Co., Ltd. | Branching device |
| CN201117979Y (en) * | 2007-09-22 | 2008-09-17 | 卢瑞军 | Small power electric appliance fireproofing power socket |
| CN101431202A (en) * | 2008-12-09 | 2009-05-13 | 沈佳玲 | Safety plug |
| CN201741874U (en) * | 2010-07-27 | 2011-02-09 | 宋洋 | Big-power anti-arc power socket |
-
2014
- 2014-02-08 CN CN201410045437.7A patent/CN103730784B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997007571A1 (en) * | 1995-08-11 | 1997-02-27 | Maspro Denkoh Co., Ltd. | Branching device |
| CN201117979Y (en) * | 2007-09-22 | 2008-09-17 | 卢瑞军 | Small power electric appliance fireproofing power socket |
| CN101431202A (en) * | 2008-12-09 | 2009-05-13 | 沈佳玲 | Safety plug |
| CN201741874U (en) * | 2010-07-27 | 2011-02-09 | 宋洋 | Big-power anti-arc power socket |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105610019A (en) * | 2014-11-05 | 2016-05-25 | 华为数字技术（苏州）有限公司 | Socket, plug virtual-plugging detection circuit, plug virtual-plugging detection device and plug virtual-plugging detection method |
| CN105610019B (en) * | 2014-11-05 | 2018-07-03 | 华为数字技术（苏州）有限公司 | A kind of socket and plug void insert detection circuit, device, method |
| CN107004986A (en) * | 2014-11-28 | 2017-08-01 | 富士通电子零件有限公司 | Connector |
| US20170324182A1 (en) * | 2014-11-28 | 2017-11-09 | Fujitsu Component Limited | Connector |
| CN106450071A (en) * | 2015-08-04 | 2017-02-22 | 南京德朔实业有限公司 | Battery pack, battery pack and electric tool composition, and method for connecting battery pack and electric tool |
| CN106450071B (en) * | 2015-08-04 | 2019-08-06 | 南京德朔实业有限公司 | Battery pack and its with the combination of electric tool and the method for connecting them |
| CN107134683A (en) * | 2016-02-26 | 2017-09-05 | 泰科电子(上海)有限公司 | Power connector |
| CN107134683B (en) * | 2016-02-26 | 2019-08-16 | 泰科电子(上海)有限公司 | Power connector |
| CN107658595A (en) * | 2017-08-30 | 2018-02-02 | 珠海格力电器股份有限公司 | It is segmented safety socket and plug |
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| CN103730784B (en) | 2016-12-07 |
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Inventor after: Jiao Qingli Inventor after: Wang Wei Inventor after: Ding Limei Inventor before: Lu Tengjiao Inventor before: Request for anonymity |
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Effective date of registration: 20160920 Address after: 276800 Yantai Road, Shandong, No. 68, No. Applicant after: STATE GRID SHANDONG ELECTRIC POWER COMPANY RIZHAO POWER SUPPLY Co. Address before: Tianhe District Tong East Road Guangzhou city Guangdong province 510665 B-101 No. 5, room B-118 Applicant before: GUANGDONG GAOHANG INTELLECTUAL PROPERTY OPERATION Co.,Ltd. Effective date of registration: 20160920 Address after: Tianhe District Tong East Road Guangzhou city Guangdong province 510665 B-101 No. 5, room B-118 Applicant after: GUANGDONG GAOHANG INTELLECTUAL PROPERTY OPERATION Co.,Ltd. Address before: Haimen City 226136 Jiangsu city of Nantong province Wansheng rural village 44 years group Applicant before: Lu Tengjiao |
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