CN209282288U - Battery pack and electric tool system - Google Patents

Battery pack and electric tool system Download PDF

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Publication number
CN209282288U
CN209282288U CN201821965541.8U CN201821965541U CN209282288U CN 209282288 U CN209282288 U CN 209282288U CN 201821965541 U CN201821965541 U CN 201821965541U CN 209282288 U CN209282288 U CN 209282288U
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CN
China
Prior art keywords
terminal
male plug
battery pack
variable
terminals
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Withdrawn - After Issue
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CN201821965541.8U
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Chinese (zh)
Inventor
刘传君
郭新忠
严安
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Globe Jiangsu Co Ltd
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Changzhou Globe Co Ltd
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Priority to CN201821965541.8U priority Critical patent/CN209282288U/en
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Publication of CN209282288U publication Critical patent/CN209282288U/en
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

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  • Battery Mounting, Suspending (AREA)

Abstract

The utility model provides a kind of battery pack, including two groups of battery cores and respectively four electrode terminals of electric connection corresponding with the positive electrode and negative electrode of two groups of battery cores.Four electrode terminals include two fixing terminals for being set to two variable terminals of centre and being set to outside.Two variable terminals have different mechanical connection states, two groups of battery cores can be made in being connected in series or in parallel, so that battery pack exports two different voltages.The utility model additionally provides a kind of electric tool system, including electric tool and battery pack.The mating mechanical connection state for switching variable terminal of the male plug part and battery pack of electric tool, so that battery pack exports different output voltages to electric tool.So set, increasing the scope of application of electric tool system, the compatibility of product is improved, development cost is reduced.

Description

Battery pack and electric tool system
Technical field
The utility model relates to battery packs and electric tool system that one kind can export two kinds of voltages.
Background technique
The electrically powered machines such as electric tool rechargeable battery a group driving, motor using lithium ion battery etc. more and more The wireless penetration of device becomes an important development trend.In the electric tool driven by motor, usually using by multiple batteries The battery pack of unit composition, and the electric energy by storing in battery pack is come drive motor.It is reduced using rear voltage, it can be by battery pack It removes from electric tool, is charged using external recharging apparatus to battery pack.
In the electric tool or electrically powered machine of radio-type, need rechargeable battery can ensure as defined in the working time or Defined output, therefore the performance of battery will also meet high output or Towards Higher Voltage.In addition, with to by radio-type motor The exploitation of device, the battery pack with various output voltages have also gradually been commercialized.In general, the output voltage of battery pack is fixed , but occur at present by the way that multiple battery components are arranged, and select by connecting component to export battery component series connection, Or export battery component parallel connection, electric tool or electrically powered machine in need of different voltages are coped with this.
For user, when using multiple electric tools or electrically powered machine, to prepare multiple battery group in response to not Same voltage requirements, so can be comparatively laborious, and it is therefore desirable to provide the batteries that one kind can export different voltages by switching Group improves the convenience used.
Utility model content
The purpose of this utility model is to provide a kind of battery packs for being capable of providing two different output voltages and electronic Tool system.
To realize above-mentioned purpose of utility model, the utility model provides a kind of battery pack comprising the first battery core group, the Two battery core groups and four electrode terminals being electrically connected respectively with the positive electrode and negative electrode of two battery core groups, it is characterised in that: described Four electrode terminals include two fixing terminals for being set to two variable terminals of centre and being set to outside;Two convertible tips Sub to be connected from two electrodes of different battery core groups, two fixing terminals are connected with remaining two electrodes of two battery core groups;Institute Stating tool between two variable terminals, there are two types of the states of mechanical connection, and two battery core groups are serially connected to export in the first state High pressure, two battery core groups are parallel with one another to export low pressure in a second state.
Two variable terminals electrode different with two battery core group polarity respectively as a further improvement of the utility model, It is connected, two variable terminals are connected with each other under the first state, and two variable terminals mutually disconnect under second of state.
Two variable terminals are normally open as a further improvement of the utility model, logical both under the first state A switching conductive sheet is crossed to be connected.
Two variable terminals are normally off as a further improvement of the utility model, logical both under second of state An external insulation inserted sheet is crossed to disconnect.
As a further improvement of the utility model, under the first state two fixing terminals as battery pack it is total just with Total bear is docked with electric tool.
As a further improvement of the utility model, under second of state, the identical electrode phase with two battery core group polarity Even fixing terminal and variable terminal with it is same dock public affairs blade contact.
The electrode terminal being connected as a further improvement of the utility model, with the first battery core group positive and negative anodes is the first anode Terminal and the first negative terminal, the electrode terminal being connected with the second battery core group positive and negative anodes are the second positive terminal and the second negative pole end Son, arrangement is followed successively by the second negative terminal, the first negative terminal, the second positive terminal and the first positive terminal in battery pack Son, wherein the second negative terminal and the first positive terminal are fixing terminal, the first negative terminal and the second positive terminal are variable Terminal.
Two variable terminals electrode identical with two battery core group polarity respectively as a further improvement of the utility model, It is connected, two variable terminals mutually disconnect under the first state;Two variable terminals are connected with each other under second of state.
Two variable terminals are normally open as a further improvement of the utility model, under second of state two can Become terminal and docks public blade contact with same.
Two variable terminals are normally off as a further improvement of the utility model, logical both under the first state An insulation inserted sheet is crossed to disconnect.
One of them variable terminal is solid by a switching conductive sheet and one as a further improvement of the utility model, Fixed end is connected, and the variable terminal being connected and fixing terminal are connected from different battery core groups respectively.
The electrode terminal being connected as a further improvement of the utility model, with the first battery core group positive and negative anodes is the first anode Terminal and the first negative terminal, the electrode terminal being connected with the second battery core group positive and negative anodes are the second positive terminal and the second negative pole end Son, arrangement is followed successively by the second positive terminal, the first negative terminal, the second negative terminal and the first positive terminal, wherein second Positive terminal and the first positive terminal are fixing terminal, and the first negative terminal and the second negative terminal are variable terminal.
Four electrode terminals are arranged in a row as a further improvement of the utility model, and two variable terminals are neighbouring Setting.
Two fixing terminal structures are identical as a further improvement of the utility model, and two fixing terminals are respectively provided with A pair of of contact arm;Fixing terminal is different from variable terminal structure.
Two variable terminals are single contact arm configuration as a further improvement of the utility model, and the two is normally open.
Two variable terminals are respectively provided with a pair of main contact arm as a further improvement of the utility model, and one flanks Contact arm, it is normally off that two, which flank contact arm,.
The battery pack further includes being respectively arranged on outside four electrode terminals as a further improvement of the utility model, The communication terminal and charging terminal of side, the communication terminal and the structure of the charging terminal and the structure phase of the fixing terminal Together.
The utility model additionally provides a kind of electric tool system comprising electric tool and the electricity connecting with electric tool Chi Bao, the battery pack are battery pack above-mentioned, and the electric tool is equipped with the male plug part that cooperates with the battery pack, two Variable terminal changes mechanical connection state by cooperating with male plug part.
As a further improvement of the utility model, when two variable terminals electricity different with two battery core group polarity respectively Extremely it is connected, and when being therebetween normally open, the male plug part on electric tool is the first male plug part, is received from battery pack high Pressure, and have there are three the first male plug piece, three the first male plug pieces successively cooperate with communication terminal and two fixing terminals, and described turn It connects conductive sheet to be arranged on the first male plug part, three first male plug pieces electrically connect with battery pack and electric tool simultaneously It connects, the switching conductive sheet is only electrically connected with the variable terminal of battery pack.
As a further improvement of the utility model, when two variable terminals electricity different with two battery core group polarity respectively Extremely it is connected, and when being therebetween normally open, the male plug part on electric tool is the second male plug part, is received from battery pack low Pressure, including three the second male plug pieces, one of them second male plug piece and communication terminal cooperate, other two the second male plug piece difference Tool is there are two contact arm, the polarity of two contact arms of same second male plug piece battery core groups different from connecting in battery pack respectively Identical fixing terminal and variable termination contact.
It is set between the adjacent contact arm of other two the second male plug piece as a further improvement of the utility model, There is insulating trip.
As a further improvement of the utility model, when two variable terminals electricity different with two battery core group polarity respectively Extremely it is connected, and when being therebetween normally off, the male plug part on electric tool is third male plug part, is received from battery pack low Pressure, including three third male plug pieces;Wherein three third male plug pieces and communication terminal cooperate;Other two third male plug piece difference For tool there are two contact arm, the polarity of two contact arms of same third male plug piece battery core groups different from connection simultaneously is identical solid Fixed end and variable termination contact;The external insulation inserted sheet is arranged between other two described third male plug piece, and insulation is inserted The length of piece projection be greater than third male plug piece, with battery pack cooperate when its at first with two variable termination contacts.
As a further improvement of the utility model, when two variable terminals electricity different with two battery core group polarity respectively Extremely it is connected, and when being therebetween normally off, the male plug part on electric tool is the 4th male plug part, is received from battery pack high Pressure, and have there are three the 4th male plug piece, three the 4th male plug pieces successively cooperate with communication terminal and two fixing terminals.
As a further improvement of the utility model, when two variable terminals electricity identical with two battery core group polarity respectively Extremely it is connected, and when being therebetween normally open, the male plug part on electric tool is the 5th male plug part, is received from battery pack low Pressure, including three the 5th male plug pieces;One of them the 5th male plug piece and communication terminal cooperate;In other two the 5th male plug piece, Simultaneously with two variable termination contacts, another the 5th male plug piece connects with two fixing terminals simultaneously for one the 5th male plug piece Touching.
As a further improvement of the utility model, when two variable terminals electricity identical with two battery core group polarity respectively Extremely it is connected, and when being therebetween normally open, the male plug part on electric tool is the 6th male plug part, is received from battery pack high Pressure, and have there are three the 6th male plug piece, the switching conductive sheet is arranged on the 6th male plug part, and switching is led when cooperating with battery pack The electrode terminal different from different battery core group polarity is connected by electric piece, three the 6th male plug pieces respectively with communication terminal and remainder Two electrode terminals cooperation.
Position on the 6th male plug part between corresponding two variable terminals as a further improvement of the utility model, Equipped with insulating trip.
As a further improvement of the utility model, when two variable terminals electricity identical with two battery core group polarity respectively Extremely it is connected, and when being therebetween normally off, the male plug part on electric tool is the 7th male plug part, is received from battery pack high It presses, and the 7th male plug piece there are three tools, the switching conductive sheet and the insulation inserted sheet is equipped with simultaneously on the 7th male plug part, with electricity The electrode terminal different from different battery core group polarity is connected by switching conductive sheet when Chi Bao cooperates, and external insulation inserted sheet is located at two Between a variable terminal, three the 7th male plug pieces cooperate with communication terminal and remaining two electrode terminals respectively.
As a further improvement of the utility model, when two variable terminals electricity identical with two battery core group polarity respectively Extremely it is connected, and when being therebetween normally off, the male plug part on electric tool is the 8th male plug part, is received from battery pack low Pressure, including three the 8th male plug pieces;One of them the 8th male plug piece and communication terminal cooperate;In other two the 8th male plug piece, Simultaneously with two variable termination contacts, another the 8th male plug piece connects with two fixing terminals simultaneously for one the 8th male plug piece Touching.
The beneficial effects of the utility model are: the utility model battery pack includes two battery core groups and connects with two battery core groups Four electrode terminals connect, in four electrode terminals setting there are two the variable terminal with different mechanical connection states, with Make two battery core groups in being connected in series or in parallel, so that battery pack can provide two different output voltages;This is practical The mating mechanical connection for switching variable terminal of male plug part and battery pack that novel electric tool system passes through electric tool State, so that two groups of battery cores are in be connected in series or in parallel, to export corresponding output voltage.So set, increasing battery pack With the scope of application of electric tool system, the compatibility of product is improved, use cost is reduced.
Detailed description of the invention
Fig. 1 is the perspective view of the utility model battery pack embodiment one.
Fig. 2 is the perspective view of the socket of battery pack in Fig. 1.
Fig. 3 is the schematic diagram that the electrode terminal of battery pack in Fig. 1 is connect with battery core group.
Fig. 4 is the perspective view that battery pack and the first male plug part cooperate when exporting high pressure in Fig. 1.
Fig. 5 is the stereogram exploded view of the first male plug of the utility model part.
Fig. 6 is the perspective view that battery pack and the second male plug part cooperate when exporting low pressure in Fig. 1.
Fig. 7 is the stereogram exploded view of the second male plug of the utility model part.
Fig. 8 is the conductive terminal of the utility model embodiment two and the perspective view of third male plug part cooperation.
Fig. 9 is the schematic diagram that the electrode terminal of the utility model battery pack embodiment two is connect with battery core group.
Figure 10 is the stereogram exploded view of the utility model third male plug part.
Figure 11 is the conductive terminal of the utility model battery pack embodiment two and the perspective view of the 4th male plug part cooperation.
Figure 12 is the stereogram exploded view of the 4th male plug part of the utility model.
Figure 13 is the schematic diagram that the electrode terminal of the utility model battery pack embodiment three is connect with battery core group.
Figure 14 is the conductive terminal of the utility model battery pack embodiment three and the perspective view of the 5th male plug part cooperation.
Figure 15 is the part isometric exploded view of the 5th male plug part of the utility model.
Figure 16 is the conductive terminal of the utility model battery pack embodiment three and the perspective view of the 6th male plug part cooperation.
Figure 17 is the schematic diagram that the electrode terminal of the utility model battery pack example IV is connect with battery core group.
Perspective view when Figure 18 is the electrode terminal and the 7th male plug part cooperation output high pressure of the utility model embodiment four.
Figure 19 is the stereogram exploded view of the 7th male plug part of the utility model.
Perspective view when Figure 20 is the electrode terminal and the 8th male plug part cooperation output low pressure of the utility model embodiment four.
Specific embodiment
In order to keep the purpose of this utility model, technical solution and advantage clearer, with reference to the accompanying drawing and it is embodied The utility model is described in detail in example.
Here, it should also be noted that, in order to avoid having obscured the utility model because of unnecessary details, in the accompanying drawings It illustrate only the structure and/or processing step closely related with the embodiment of the utility model, and be omitted and the utility model The little other details of relationship.
In addition, it should also be noted that, the terms "include", "comprise" or its any other variant be intended to it is non-exclusive Property include so that include a series of elements process, method, article or equipment not only include those elements, but also Further include other elements that are not explicitly listed, or further include for this process, method, article or equipment it is intrinsic Element.
Shown in please referring to Fig.1 to Fig.3, the utility model battery pack 100 is used to be electric tool offer power supply (not shown), It includes shell 101, the first battery core group 102 being contained in shell 101, the second battery core group 103 and electrical with two battery core groups The socket 110 of connection.Socket 110 includes ontology 104 and several conductive terminals being contained in ontology 104.Several conductive terminals It is specially electric with first including four electrode terminals with the electric connection of the positive electrode and negative electrode of the first, second battery core group 102,103 The first connected positive terminal 111 of the positive and negative anodes of core group 102 and the first negative terminal 112, the positive and negative anodes with the second battery core group 103 Connected the second positive terminal 113 and the second negative terminal 114, the arrangement in battery pack 100 are followed successively by from left to right Two negative terminals 114, the first negative terminal 112, the second positive terminal 113 and the first positive terminal 111, wherein the second negative pole end Son 114 and the first positive terminal 111 are fixing terminal, and the first negative terminal 112 and the second positive terminal 113 are variable terminal. Conductive terminal further includes the communication terminal 115 and charging terminal 116 being located on the outside of four electrode terminals.Particularly, by communication terminal Son 115 and charging terminal 116 are provided separately, and can be prevented damage of the charging high pressure to battery pack, be extended the use of battery pack Service life.
Four electrode terminals, communication terminal 115 and charging terminal 116 are set in a row, wherein the first negative terminal 112 and Two positive terminals 113 are located at intermediate and are normally open, and the second negative terminal 114 and the first positive terminal 111 are set to outside.Such as This is arranged so that two variable terminals are close to each other consequently facilitating switching mechanical connection state between the two.Second negative terminal 114, the first positive terminal 111, communication terminal 115 are identical with 116 structure of charging terminal, are respectively provided with a pair of of contact arm.First Negative terminal 112 and the second positive terminal 113 are single contact arm configuration.
Two variable terminals i.e. the first negative terminal 112 and the second positive terminal 113 are selectable in disconnecting or connection two The different mechanical connection state of kind, two battery core groups 102,103 are serially connected to export high pressure in the first state, second Two battery core groups 102,103 are parallel with one another to export low pressure under kind state.It please join shown in Fig. 4 and Fig. 5, be the utility model battery The conductive terminal of packet 100 is (not shown) with the feelings for merging output high pressure with the electric tool for being equipped with the first male plug part 120 docked Shape.First male plug part 120 tool is there are four the first male plug piece 121,122,123,124 and a switching conductive sheet 125, and four first Male plug piece 121,122,123,124 and a switching conductive sheet 125 are mounted on ontology 126.
Four the first male plug pieces 121,122,123,124 successively with 115, two i.e. the second cathode of fixing terminal of communication terminal Terminal 114 and the cooperation of the first positive terminal 111 and charging terminal 116.Switching conductive sheet 125 is located at the first male plug piece 122,123 Between, when cooperating with battery pack 100 between two variable terminal the first negative terminals 112 of insertion and the second positive terminal 113 And be in contact with it, further the cathode of the first battery core group 102 is connected with the anode of the second battery core group 103, so by two Battery core group is mutually contacted, and two fixing terminals i.e. the second negative terminal 114 and the first positive terminal 111 are used as battery pack 100 Total just negative connect with 120 property established of the first male plug part with total.It should be noted that three first of the first male plug part 120 are public Inserted sheet 121,122,123 is electrically connected with battery pack 100 and electric tool simultaneously, and transfer conductive sheet 125 then only with battery pack 100 are electrically connected, and there is no be electrically connected with electric tool.
Charging terminal 116 is that battery pack 100 uses when connecting charging with external power supply, in battery pack 100 and electronic work It is idle when tool connection, therefore only there is mechanical connection between charging terminal 116 and the first male plug piece 124, without It is electrically connected, the cooperation of the first male plug piece 124 and charging terminal 116 can enhance between the first male plug part 120 and battery pack 100 Dock intensity.Correspondingly, three the first male plug pieces 121,122,123 can be only arranged in the first male plug part 120, and are not provided with One male plug piece 124.Similarly, although the male plug part on electric tool disclosed below is equipped with the male plug with charging terminal cooperation Piece, but for the utility model, each male plug part can be not provided with these male plug pieces and three docking male plug pieces are only arranged.
Please join shown in Fig. 6 and Fig. 7, for the utility model battery pack 100 conductive terminal with equipped with the second male plug for docking The electric tool of part 130 is (not shown) to be cooperated to export the situation of low pressure.There are four the second male plug pieces for second male plug part 130 tool 131,132,133,134 and ontology 135.In use, four the second male plug pieces 131,132,133,134 and communication terminal 115, two I.e. the first negative terminal 112 of 111, two variable terminals of a fixing terminal i.e. the second negative terminal 114 and the first positive terminal and Second positive terminal 113 and charging terminal 116 cooperate.
Specifically, the second male plug piece 131,134 cooperates with communication terminal 115 and charging terminal 116 respectively.Second male plug piece 132,133 cooperate with two electrode terminals respectively, i.e., the second male plug piece 132 is negative with the second negative terminal 114 and first simultaneously Extreme son 112 is engaged, and the second male plug piece 133 contacts and matches with the second positive terminal 123 and the first positive terminal 111 simultaneously It closes.Two the second male plug pieces 132,133 are respectively provided with two contact arms 1321,1322,1331,1332, and same second Two contact arms 1321,1322,1331,1332 of male plug piece 132,133 respectively with a variable terminal and a fixing terminal It is connected, and due to the variable terminal and fixing terminal of the connection identical electrode phase with two battery core groups 102,103 polarity respectively Even, to keep two battery core groups 102,103 parallel with one another, in this case, battery pack 100 exports low pressure.It is two adjacent to connect It is equipped with insulating trip 136 between contact arm 1322,1331 and avoids short circuit.
It in the present embodiment, is normally opened between two variable terminals i.e. the first negative terminal 112 and the second positive terminal 113 State is led when electric tool receives high pressure from battery pack 100 by the switching being arranged on the first male plug part 120 of electric tool Two variable terminals are connected by electric piece 125, and then two different electrodes of battery core group polarity are connected, and realize two battery cores Group series connection, this is the first state.When electric tool receives low pressure from battery pack 100, two variable terminals i.e. the first cathode State is maintained a normally open between terminal 112 and the second positive terminal 113, then will be with 103 pole of the first battery core group 102 and the second battery core group Property a connected fixing terminal of identical electrode and a variable terminal simultaneously with the same male plug on the second male plug part 130 Piece contact, so that two battery core groups are connected in parallel, this is second of state.
Please join shown in Fig. 8 to 10, be the utility model battery pack embodiment two, it is different from previous embodiment one it Place is only that the structure of conductive terminal.Six conductive terminals are arranged on the ontology 204 of socket comprising with the first, second electricity Four electrode terminals that the positive electrode and negative electrode of core group 202,203 are electrically connected, are specially connected with 202 positive and negative anodes of the first battery core group The first positive terminal 211 and the first negative terminal 212, the second positive terminal 213 for being connected with 203 positive and negative anodes of the second battery core group And second negative terminal 214, arrangement are being followed successively by the second negative terminal 214, the first negative terminal 212, second just from left to right Extreme son 213 and the first positive terminal 211, wherein the second negative terminal 214 and the first positive terminal 211 are fixing terminal, the One negative terminal 212 and the second positive terminal 213 are variable terminal.It is arranged such and two variable terminals is placed on middle position, Fixing terminal is placed on two side positions, so that two variable terminals are close to each other, and connecting or disconnecting convenient for both switchings, To export different voltage under two kinds of mechanical connection states.Conductive terminal further includes being located at leading on the outside of four electrode terminals Interrogate terminal 215 and charging terminal 216.
Four electrode terminals, communication terminal 215 and charging terminal 216 are arranged in a row.First negative terminal 212 and second Positive terminal 213 is respectively provided with three contact arms, and three contact arms include a pair of main contact arm 2121,2131 and a side Contact arm 2122,2132, it is the normally off to contact with each other that two, which flank contact arm 2122,2132,.When exporting high pressure, two are flanked Contact arm 2122,2132 is in contact and is connected with each other two variable terminals, and two pairs of main contact arms 2121,2131 are vacant;It exports low When pressure, two flank the insulation inserted sheet 225 (Figure 10) docked between contact arm 2122,2132 by one and disconnect.
Fig. 8 is that the third male plug part 220 in the conductive terminal and electric tool of the battery pack of the utility model cooperates output The connection status of low pressure.Third male plug part 220 has there are four third male plug piece 221,222,223,224 and insulation inserted sheet 225, the Three male plug pieces 221,222,223,224 and insulation inserted sheet 225 are mounted on ontology 226.Two third male plug pieces 221,224 are distinguished Cooperate with communication terminal 215 and charging terminal 216.And third male plug piece 222,223 connects with two electrode terminals simultaneously respectively Touching, wherein third male plug piece 222 is contacted with the main contact arm 2121 of the second negative terminal 214 and the first negative terminal 212 simultaneously, Third male plug piece 223 cooperates with the main contact arm 2131 of the second positive terminal 213 and the first positive terminal 211 simultaneously.It needs Bright, be not shown in Fig. 8 such as flowering structure: insulation inserted sheet 225 is located between two third male plug pieces 222,223, with electricity Insulation inserted sheet 225 is inserted into the first negative terminal 212 and the second positive terminal 213 when Chi Bao cooperates two flank contact arm 2122, It disconnects between 2132 to connect the two, further the cathode 203 of the second battery core group and the anode of the first battery core group 202 breaks It opens, so by two battery core groups and company.The length of the projection of insulation inserted sheet 225 is greater than third male plug piece 221,222,223,224, It is at first with two variable termination contacts so that the two disconnection, avoids that short circuit occurs when cooperating with battery pack.
It please join shown in Figure 11 to 12, the conductive terminal and the 4th male plug part 230 of the embodiment two of the utility model battery pack The situation of cooperation output high pressure.It should be noted that though the variable terminal that can be changed in the structure and Fig. 8 of terminal in Figure 11 slightly has not Together, but from the perspective of the utility model, the two is substantially identical.4th male plug part 230 include four the 4th male plug pieces 231, 232,233,234 and ontology 235.4th male plug piece 231,234 cooperates with communication terminal 215 and charging terminal 216 respectively.And the Four male plug pieces 232,233 are contacted with the second negative terminal 214 and the first positive terminal 211 respectively.First negative terminal 212 The main contact arm 2131 of main contact arm 2121 and the second positive terminal 213 is vacant, and two flank contact arm 2122,2132 and are in contact, The anode of second battery core group 203 is connect with the cathode of the first battery core group 202, so two battery core groups are contacted.
In the present embodiment, two variable terminals i.e. the first negative terminal 212 and the second positive terminal 213 are normally closed shape State need to be disconnected when exporting low pressure by the inserted sheet 225 that insulate;When exporting high pressure, two flank contact arm 2122,2132 and are in contact Normality is kept, two battery core groups 202,203 are serially connected.
In embodiment one and embodiment two, two variable terminals electrode phase different from different battery core group polarity respectively Even, the variable terminal of the battery pack of the utility model is described below, and electrode identical with two battery core group polarity is connected respectively Embodiment.
It please join shown in Figure 13 to 16, be the embodiment three of the utility model battery pack, wherein the structure and reality of conductive terminal It applies that example one is identical, the difference is that only that the electrode of the battery core group of fixing terminal and the connection of variable terminal is different, i.e., two variable Terminal electrode identical with two battery core group polarity is connected, fixing terminal electrode identical with two other two polarity of battery core group It is connected.Specifically, please join shown in Figure 13,302 positive and negative anodes of the first battery core group are negative with the first positive terminal 311 and first respectively Extreme son 312 is connected, the positive and negative anodes of the second battery core group 303 respectively with 314 phase of the second positive terminal 313 and the second negative terminal Even.Arrangement of four electrode terminals in battery pack be followed successively by from left to right the second positive terminal 313, the first negative terminal 312, Second negative terminal 314 and the first positive terminal 311.Wherein the second negative terminal 314 and the first negative terminal 312 are convertible tip Son, the second positive terminal 313 and the first positive terminal 311 are fixing terminal.Conductive terminal further includes being located at four electrode terminals The communication terminal 315 and charging terminal 316 in outside.
It please join shown in Figure 14 and 15, be the battery pack and electric tool assembling output low pressure of the utility model embodiment three State.There are four the 5th male plug pieces 321,322,323,324 for 5th male plug part 320 tool.When work, four the 5th male plug pieces 321, 322,323,324 with i.e. the second positive terminal 313 of 315, two fixing terminals of communication terminal and the first positive terminal 311, two Variable terminal i.e. the second negative terminal 314, the first negative terminal 312 and charging terminal 316 have cooperation.Specifically, the 5th is public Inserted sheet 321,324 cooperates with communication terminal 315 and charging terminal 316 respectively.5th male plug piece 322,324 is respectively simultaneously with two The cooperation of a electrode terminal, i.e. the 5th male plug piece 322 have a pair of of contact arm 3221,3222 respectively with two fixing terminals i.e. second Positive terminal 313 and the contact of the first positive terminal 311.5th male plug piece 323 only has its two sides of contact arm simultaneously with two A variable terminal i.e. the second negative terminal 314 and the contact of the first negative terminal 312.Due to variable terminal and two battery core groups 302, 303 cathode is connected, and fixing terminal is connected with the anode of two battery core groups 302,303 respectively, thus make two battery core groups 302, 303 is parallel with one another, and in this case, battery pack exports low pressure.
Figure 16 is the battery pack of the utility model embodiment three and the situation of electric tool assembling output high pressure, the 6th male plug There are four the 6th male plug piece 331,332,333,334 and a switching conductive sheets 335 for part tool.Electric tool makes with battery pack cooperation Used time, switching conductive sheet 335 establish mechanical connection between the second positive terminal 313 and the first negative terminal 312, and then by two The different electrode of a battery core group polarity i.e. cathode of the first battery core group 302 and the anode of the second battery core group 303 are electrically connected.And the Six male plug pieces 331,334 cooperate with communication terminal 315, charging terminal 316 respectively, the 6th male plug piece 332 and the second negative terminal 314 contacts, the 6th male plug piece 333 are contacted with the first positive terminal 311.It to make two battery core groups be serially connected, and then is electricity Power driven tools provide high pressure.Since the second negative terminal 314 and the first negative terminal 312 are single arm structure and close to each other, it is Prevent the two from short circuit phenomenon occurs when exporting high pressure, it may be preferable that the 6th male plug part can also be in two the 6th male plug pieces 332,333 Insulation inserted sheet (not shown) that is equipped with both prevent from connecing electric connection.
In the present embodiment, two variable terminals i.e. the first negative terminal 312 and the second negative terminal 314 connect difference The identical electrode of battery core group polarity, and be between the two normally open.When electric tool receives high pressure from battery pack, two can Become between terminal i.e. the first negative terminal 312 and the second negative terminal 314 state that maintains a normally open, then passes through the 6th male plug part 330 Second positive terminal 313 is connected by the switching conductive sheet 335 of upper setting with the first negative terminal 312, and then by two battery cores The different electrode of group polarity is connected, and realizes two battery core group series connection, this is the first state.When electric tool connects from battery pack When receiving low pressure, two variable terminals i.e. the first negative terminal 312 and the second negative terminal 314 connect with the 6th male plug piece 323 simultaneously Touching, the first positive terminal 311 and the second positive terminal 313 are contacted with the 6th male plug piece 322 simultaneously, thus simultaneously by two battery core groups Connection connection.
It please join shown in Figure 17 to 20, be the example IV of the utility model battery pack, wherein the structure and reality of conductive terminal It applies that example two is roughly the same, the difference is that only that the electrode of the battery core group of fixing terminal and the connection of variable terminal is different, i.e., two Variable terminal electrode identical with two battery core group polarity is connected, and fixing terminal is identical with two other two polarity of battery core group Electrode is connected.Specifically, please join shown in Figure 17,402 positive and negative anodes of the first battery core group respectively with the first positive terminal 411 and One negative terminal 412 be connected, the positive and negative anodes of the second battery core group 403 respectively with the second positive terminal 413 and the second negative terminal 414 It is connected.Arrangement of four electrode terminals in battery pack is followed successively by the second positive terminal 413, the first negative terminal from left to right 412, the second negative terminal 414 and the first positive terminal 411.Wherein the second negative terminal 414 and the first negative terminal 412 be can Become terminal, the second positive terminal 413 and the first positive terminal 411 are fixing terminal.Conductive terminal further includes being located at four electrodes Communication terminal 415 and charging terminal 416 (Figure 18) on the outside of terminal.
It please join shown in Figure 18 and 19, when being the battery pack and electric tool assembling output high pressure of the utility model embodiment four Structure.7th male plug part 420 includes four the 7th male plug pieces 421,422,423,424, switching conductive sheet 425, insulation inserted sheet 426 and ontology 427.7th male plug piece 421,424 cooperates with communication terminal 415 and charging terminal 416 respectively.7th male plug piece 422 contact with the main contact arm 4141 of the second negative terminal 414, and the 7th male plug piece 423 is contacted with the first positive terminal 411.Turn Conductive sheet 425 is connect to be connected with the second positive terminal 413 with the main contact arm 4121 of the first negative terminal 412.Insulate inserted sheet 426 Two positioned at the first negative terminal 412 and the second negative terminal 414 flank between contact arm 4122,4142, the two are connected disconnected It opens.By above-mentioned connection, two different electrodes of battery core group polarity are connected, realize two battery core group series connection.
Structure when Figure 20 is the battery pack and electric tool assembling output low pressure of the utility model embodiment four.8th is public There are four the 8th male plug pieces 431,432,433,434 for the tool of plug-in unit 430.Wherein the 8th male plug piece 432 have a pair of of contact arm 4321, 4322.When work, four the 8th male plug pieces 431,432,433,434 and the i.e. second anode of 315, two fixing terminals of communication terminal I.e. the second negative terminal 414 of 411, two variable terminals of terminal 413 and the first positive terminal, the first negative terminal 412 and charging Terminal 316 has cooperation.
Specifically, the 8th male plug piece 431,434 cooperates with communication terminal 415 and charging terminal 416 respectively.8th male plug piece 432,433 cooperate with two electrode terminals simultaneously respectively, i.e. a pair of of contact arm 4321,4322 of the 8th male plug piece 432 is distinguished It is contacted with two fixing terminals i.e. the second positive terminal 413 and the first positive terminal 411.8th male plug piece 433 only has one Contact arm and its two sides are contacted with two variable terminals i.e. the second negative terminal 414 and the first negative terminal 412 simultaneously.Due to can Become terminal to be connected with the cathode of two battery core groups 402,403, the fixing terminal positive phase with two battery core groups 402,403 respectively Even, to keep two battery core groups 402,403 parallel with one another, in this case, battery pack exports low pressure.
In conclusion the utility model battery pack includes two groups of battery cores and four electrode terminals connecting with two groups of battery cores, It is arranged in four electrode terminals there are two the variable terminal with different mechanical connection states, variable terminal can pass through docking Male plug part on the switching conductive sheet, the insulation inserted sheet that are arranged change normally opened or normally off between the two so that two groups of electricity Core is in be connected in series or in parallel under different conditions, so that battery pack can provide two different output voltages.
The switching conductive sheet and insulation inserted sheet of the utility model are arranged on the male plug part at electric tool end, wherein switching is led Electric piece and electric tool only there is mechanical connection and without electric connection.The electric tool system of the utility model passes through electric tool Male plug part and the mating mechanical connection state for switching variable terminal of battery pack so that two groups of battery cores are in serial or parallel connection company State is connect, optionally output voltage to electric tool.So set, increasing being applicable in for battery pack and electric tool system Range improves the compatibility of product, reduces use cost.
Above embodiments are merely intended for describing the technical solutions of the present application, but not for limiting the present application, although referring to preferred embodiment pair The utility model is described in detail, those skilled in the art should understand that, it can be to the technology of the utility model Scheme is modified or replaced equivalently, without departing from the spirit and scope of the technical scheme of the present invention.

Claims (28)

1. a kind of battery pack comprising the first battery core group, the second battery core group and respectively with the positive electrode and negative electrode of two battery core groups electricity Property connection four electrode terminals, it is characterised in that: four electrode terminals include being set to two intermediate variable terminals With two fixing terminals for being set to outside;Two variable terminals are connected from two electrodes of different battery core groups, two fixations Terminal is connected with remaining two electrodes of two battery core groups;State is mechanically connected between described two variable terminals there are two types of tools, Two battery core groups are serially connected to export high pressure in the first state, in a second state two battery core groups it is parallel with one another with Export low pressure.
2. battery pack as described in claim 1, it is characterised in that: two variable terminals are different with two battery core group polarity respectively Electrode be connected, two variable terminals are connected with each other under the first state, and two variable terminals mutually disconnect under second of state.
3. battery pack as claimed in claim 2, it is characterised in that: two variable terminals are normally open, under the first state The two is connected by a switching conductive sheet.
4. battery pack as claimed in claim 2, it is characterised in that: two variable terminals are normally off, under second of state The two is disconnected by an insulation inserted sheet.
5. battery pack as claimed in claim 2, it is characterised in that: two fixing terminals are as battery pack under the first state Always just docked with total bear with electric tool.
6. battery pack as claimed in claim 2, it is characterised in that: identical with two battery core group polarity under second of state The connected fixing terminal of electrode and variable terminal are contacted with the same switching conductive sheet.
7. battery pack as claimed in claim 2, it is characterised in that: the electrode terminal being connected with the first battery core group positive and negative anodes is the One positive terminal and the first negative terminal, the electrode terminal being connected with the second battery core group positive and negative anodes are the second positive terminal and second Negative terminal, arrangement is being followed successively by the second negative terminal, the first negative terminal, the second positive terminal and first just in battery pack Extreme son, wherein the second negative terminal and the first positive terminal are fixing terminal, the first negative terminal and the second positive terminal are Variable terminal.
8. battery pack as described in claim 1, it is characterised in that: two variable terminals are identical as two battery core group polarity respectively Electrode be connected, two variable terminals mutually disconnect under the first state;Two variable terminals are connected with each other under second of state.
9. battery pack as claimed in claim 8, it is characterised in that: two variable terminals are normally open, under second of state Two variable terminals are contacted with the same switching conductive sheet.
10. battery pack as claimed in claim 8, it is characterised in that: two variable terminals are normally off, under the first state The two is disconnected by an insulation inserted sheet.
11. battery pack as claimed in claim 10, it is characterised in that: one of them variable terminal passes through a switching conductive sheet It is connected with a fixing terminal, and the variable terminal being connected and fixing terminal are connected from different battery core groups respectively.
12. battery pack as claimed in claim 8, it is characterised in that: the electrode terminal being connected with the first battery core group positive and negative anodes is First positive terminal and the first negative terminal, the electrode terminal being connected with the second battery core group positive and negative anodes are the second positive terminal and the Two negative terminals, arrangement are followed successively by the second positive terminal, the first negative terminal, the second negative terminal and the first positive terminal, Wherein the second positive terminal and the first positive terminal are fixing terminal, and the first negative terminal and the second negative terminal are convertible tip Son.
13. battery pack as described in claim 1, it is characterised in that: four electrode terminals are arranged in a row, two convertible tips The neighbouring setting of son.
14. battery pack as described in claim 1, it is characterised in that: two fixing terminal structures are identical, two fixing terminals point It Ju You not a pair of of contact arm;Fixing terminal is different from variable terminal structure.
15. battery pack as claimed in claim 14, it is characterised in that: two variable terminals are single contact arm configuration, and the two is Normally open.
16. battery pack as claimed in claim 14, it is characterised in that: two variable terminals be respectively provided with a pair of main contact arm and One flanks contact arm, and it is normally off that two, which flank contact arm,.
17. battery pack as described in claim 1, it is characterised in that: the battery pack further includes being respectively arranged on four electricity The communication terminal and charging terminal in extreme son outside, the structure and the fixing terminal of the communication terminal and the charging terminal Structure it is identical.
18. a kind of electric tool system comprising electric tool and the battery pack being connect with electric tool, it is characterised in that: institute Stating battery pack is battery pack described in any claim in claim 1-16, and the electric tool is equipped with and the battery The male plug part of cooperation is wrapped, two variable terminals change mechanical connection state by cooperating with male plug part, and the battery pack is also wrapped Include the communication terminal and charging terminal being respectively arranged on the outside of four electrode terminals.
19. electric tool system as claimed in claim 18, it is characterised in that: when two variable terminals respectively with two battery cores The different electrode of group polarity is connected, and when being therebetween normally open, and the male plug part on electric tool is the first male plug part, Receive high pressure from battery pack, and have there are three the first male plug piece, three the first male plug pieces successively with communication terminal and two fixations Terminal cooperation, the switching conductive sheet are arranged on the first male plug part, three first male plug pieces while and battery pack And electric tool is electrically connected, the switching conductive sheet is only electrically connected with the variable terminal of battery pack.
20. electric tool system as claimed in claim 18, it is characterised in that: when two variable terminals respectively with two battery cores The different electrode of group polarity is connected, and when being therebetween normally open, and the male plug part on electric tool is the second male plug part, Low pressure, including three the second male plug pieces are received from battery pack, one of them second male plug piece and communication terminal cooperate, other two Second male plug piece is respectively provided with two contact arms, two contact arms of the same second male plug piece respectively with connected not in battery pack Identical fixing terminal and variable termination contact with the polarity of battery core group.
21. electric tool system as claimed in claim 20, it is characterised in that: other two the second male plug piece it is adjacent Contact arm between be equipped with insulating trip.
22. electric tool system as claimed in claim 18, it is characterised in that: when two variable terminals respectively with two battery cores The different electrode of group polarity is connected, and when being therebetween normally off, and the male plug part on electric tool is third male plug part, Low pressure, including three third male plug pieces are received from battery pack;One of third male plug piece and communication terminal cooperate;Other two Third male plug piece is respectively provided with two contact arms, two contact arms of same third male plug piece battery core groups different from connection simultaneously The identical fixing terminal of polarity and variable termination contact;Insulation inserted sheet setting other two described third male plug piece it Between, insulation inserted sheet projection length be greater than third male plug piece, with battery pack cooperate when its at first with two variable termination contacts.
23. electric tool system as claimed in claim 18, it is characterised in that: when two variable terminals respectively with two battery cores The different electrode of group polarity is connected, and when being therebetween normally off, and the male plug part on electric tool is the 4th male plug part, Receive high pressure from battery pack, and have there are three the 4th male plug piece, three the 4th male plug pieces successively with communication terminal and two fixations Terminal cooperation.
24. electric tool system as claimed in claim 18, it is characterised in that: when two variable terminals respectively with two battery cores The identical electrode of group polarity is connected, and when being therebetween normally open, and the male plug part on electric tool is the 5th male plug part, Low pressure, including three the 5th male plug pieces are received from battery pack;One of them the 5th male plug piece and communication terminal cooperate;Other two In 5th male plug piece, the 5th male plug piece is simultaneously with two variable termination contacts, another the 5th male plug piece is simultaneously with two A fixing terminal contact.
25. electric tool system as claimed in claim 18, it is characterised in that: when two variable terminals respectively with two battery cores The identical electrode of group polarity is connected, and when being therebetween normally open, and the male plug part on electric tool is the 6th male plug part, High pressure is received from battery pack, and there are three the 6th male plug pieces for tool, the switching conductive sheet is arranged on the 6th male plug part, with battery Packet cooperation when switching conductive sheet the electrode terminal different from different battery core group polarity is connected, three the 6th male plug pieces respectively with Communication terminal and the cooperation of remaining two electrode terminals.
26. electric tool system as claimed in claim 25, it is characterised in that: corresponding two can be changed on the 6th male plug part Position between terminal is equipped with insulating trip.
27. electric tool system as claimed in claim 18, it is characterised in that: when two variable terminals respectively with two battery cores The identical electrode of group polarity is connected, and when being therebetween normally off, and the male plug part on electric tool is the 7th male plug part, High pressure, and the 7th male plug piece there are three tools are received from battery pack, is equipped with the switching conductive sheet and institute simultaneously on the 7th male plug part Insulation inserted sheet is stated, the electrode terminal different with different battery core group polarity is connected by conductive sheet of transferring when cooperating from battery pack, absolutely Edge inserted sheet is located between two variable terminals, and three the 7th male plug pieces are matched with communication terminal and remaining two electrode terminals respectively It closes.
28. electric tool system as claimed in claim 18, it is characterised in that: when two variable terminals respectively with two battery cores The identical electrode of group polarity is connected, and when being therebetween normally off, and the male plug part on electric tool is the 8th male plug part, Low pressure, including three the 8th male plug pieces are received from battery pack;Wherein three the 8th male plug pieces and communication terminal cooperate;Other two In 8th male plug piece, the 8th male plug piece is simultaneously with two variable termination contacts, another the 8th male plug piece is simultaneously with two A fixing terminal contact.
CN201821965541.8U 2018-11-27 2018-11-27 Battery pack and electric tool system Withdrawn - After Issue CN209282288U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201821965541.8U CN209282288U (en) 2018-11-27 2018-11-27 Battery pack and electric tool system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201821965541.8U CN209282288U (en) 2018-11-27 2018-11-27 Battery pack and electric tool system

Publications (1)

Publication Number Publication Date
CN209282288U true CN209282288U (en) 2019-08-20

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CN201821965541.8U Withdrawn - After Issue CN209282288U (en) 2018-11-27 2018-11-27 Battery pack and electric tool system

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109301145A (en) * 2018-11-27 2019-02-01 常州格力博有限公司 Battery pack and electric tool system
CN115224456A (en) * 2021-04-15 2022-10-21 南京泉峰科技有限公司 Battery pack and electric tool

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109301145A (en) * 2018-11-27 2019-02-01 常州格力博有限公司 Battery pack and electric tool system
CN109301145B (en) * 2018-11-27 2024-04-16 格力博(江苏)股份有限公司 Battery pack and electric tool system
CN115224456A (en) * 2021-04-15 2022-10-21 南京泉峰科技有限公司 Battery pack and electric tool

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