JP6440116B2 - Battery pack and adapter - Google Patents
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- JP6440116B2 JP6440116B2 JP2014265465A JP2014265465A JP6440116B2 JP 6440116 B2 JP6440116 B2 JP 6440116B2 JP 2014265465 A JP2014265465 A JP 2014265465A JP 2014265465 A JP2014265465 A JP 2014265465A JP 6440116 B2 JP6440116 B2 JP 6440116B2
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Description
本発明は、電動工具に用いる電池パック、及び電池パックに付帯させるアダプタに関するものである。 The present invention relates to a battery pack used for a power tool and an adapter attached to the battery pack.
手持ち式の電動工具においては、例えば特許文献１に示されるように、モータや制御回路等を備える電動工具本体に対して電池パックが着脱可能に構成されたものが知られている。電池パックは、複数個の電池セルから構成される二次電池を内蔵し、電動工具本体に駆動電力を供給する。 As a hand-held power tool, for example, as disclosed in Patent Document 1, a battery pack is detachable from a power tool body including a motor, a control circuit, and the like. The battery pack incorporates a secondary battery composed of a plurality of battery cells and supplies driving power to the power tool body.
ところで、使用者によっては、電動工具本体と対で用意される電池パックの他に、予備として別の電池パックを用意することがあり、また電動工具本体と対で用意される電池パックが古くなり、交換のために新たに別の電池パックを用意したりすることもある。その際、別途用意した電池パック内の二次電池の内部抵抗が元々電動工具本体と対で用意される電池パックの内部抵抗より低い場合があるため、電動工具本体のモータや制御回路等に対して過電流が生じ得ることが懸念される。つまり、このような状況では、電池パックが使用できない虞があった。 By the way, depending on the user, in addition to the battery pack prepared as a pair with the power tool body, another battery pack may be prepared as a spare, and the battery pack prepared as a pair with the power tool body becomes old. A new battery pack may be prepared for replacement. At that time, the internal resistance of the secondary battery in the separately prepared battery pack may be lower than the internal resistance of the battery pack originally prepared in pairs with the power tool body. There is a concern that overcurrent may occur. That is, in such a situation, there is a possibility that the battery pack cannot be used.
本発明は、上記課題を解決するためになされたものであって、その目的は、汎用性を高めることができる電池パック、及び電池パックに付帯させるアダプタを提供することにある。 The present invention has been made to solve the above problems, and an object of the present invention is to provide a battery pack capable of enhancing versatility and an adapter attached to the battery pack.
上記課題を解決する電池パックは、モータ及び制御回路を含んで構成される電動工具本体に対して着脱可能であり、前記電動工具本体への装着により前記電動工具本体側に電力供給を行う電動工具用の電池パックであって、前記電池パック内の二次電池本来の内部抵抗に付加可能な調整用抵抗を有し、前記電池パック全体の内部抵抗を調整可能な抵抗調整部を備える。 A battery pack that solves the above-described problems is detachable from an electric tool main body configured to include a motor and a control circuit, and an electric tool that supplies electric power to the electric tool main body by being attached to the electric tool main body The battery pack includes an adjustment resistor that can be added to the original internal resistance of the secondary battery in the battery pack, and includes a resistance adjustment unit that can adjust the internal resistance of the entire battery pack.
また、上記課題を解決するアダプタは、モータ及び制御回路を含んで構成される電動工具本体と、前記電動工具本体に対して着脱可能であり装着により前記電動工具本体側に電力供給を行う電池パックとを備える電動工具に対し外付け可能なアダプタであって、前記アダプタは、前記電池パック内の二次電池本来の内部抵抗に付加可能な調整用抵抗を有し、前記電動工具に対する装着・非装着にて前記電池パック側の内部抵抗を調整可能に構成される。 Moreover, the adapter which solves the said subject is an electric tool main body comprised including a motor and a control circuit, and a battery pack which is detachable with respect to the said electric tool main body, and supplies electric power to the said electric tool main body side by mounting | wearing An adapter that can be externally attached to the electric tool, the adapter having an adjustment resistor that can be added to the internal resistance inherent in the secondary battery in the battery pack, The internal resistance on the battery pack side can be adjusted by mounting.
上記した電池パックによれば、汎用性を高めることができる。また、上記したアダプタによれば、電池パックの汎用性を高めることができる。 According to the battery pack described above, versatility can be improved. Moreover, according to the above-mentioned adapter, the versatility of a battery pack can be improved.
以下、電動工具に用いる電池パックの一実施形態について説明する。
図１に示すように、電動工具１は、作業者が片手で把持可能な手持ち式で充電式の電動工具である。電動工具１は、電動工具本体１０と、電動工具本体１０の把持部１１の下端に設けられる電池パック装着部１２に対して着脱可能な電池パック２０とを備えてなる。
Hereinafter, an embodiment of a battery pack used for a power tool will be described.
As shown in FIG. 1, the electric tool 1 is a hand-held and rechargeable electric tool that an operator can hold with one hand. The electric tool 1 includes an electric tool main body 10 and a battery pack 20 that can be attached to and detached from the battery pack mounting portion 12 provided at the lower end of the grip portion 11 of the electric tool main body 10.
電動工具本体１０は、図２に示すように、駆動源としてモータ１３、モータ１３の駆動制御を行う制御回路１４、及びトリガスイッチ１５等を備えている。また、電動工具本体１０（電池パック装着部１２）は、電池パック２０側と電気的接続を図る電源端子１６ａ，１６ｂを備えている。電動工具本体１０は、電源端子１６ａ，１６ｂを介して電池パック２０から電力供給がなされることで、トリガスイッチ１５の操作による制御回路１４の制御に基づきモータ１３の駆動が制御される。 As shown in FIG. 2, the electric tool main body 10 includes a motor 13 as a drive source, a control circuit 14 that performs drive control of the motor 13, a trigger switch 15, and the like. The electric power tool main body 10 (battery pack mounting portion 12) includes power terminals 16a and 16b that are electrically connected to the battery pack 20 side. The power tool body 10 is supplied with electric power from the battery pack 20 via the power terminals 16a and 16b, so that the drive of the motor 13 is controlled based on the control of the control circuit 14 by the operation of the trigger switch 15.
電池パック２０は、ケース２１と、ケース２１に収容される二次電池２２と、二次電池２２とともに収容される抵抗調整ユニット２３とを有している。二次電池２２は、リチウム電池等の複数個の電池セル２２ａにて構成されている。 The battery pack 20 includes a case 21, a secondary battery 22 accommodated in the case 21, and a resistance adjustment unit 23 accommodated together with the secondary battery 22. The secondary battery 22 includes a plurality of battery cells 22a such as lithium batteries.
抵抗調整ユニット２３は、図１に示すように、例えば金属板材から作製され平面方向に蛇行形状をなす抵抗板２４と、抵抗板２４を覆う断熱材２５とを備えている。また、図２に示すように、抵抗調整ユニット２３は、抵抗板２４を含む第１電路２６ａと、抵抗板２４を迂回する第２電路２６ｂと、第１及び第２電路２６ａ，２６ｂの何れかの電路に切り替える電路切替部２７とを備えている。電路切替部２７は、スイッチや断路部等よりなり第２電路２６ｂ上に設けられる。 As shown in FIG. 1, the resistance adjustment unit 23 includes a resistance plate 24 made of, for example, a metal plate material and having a meandering shape in a plane direction, and a heat insulating material 25 covering the resistance plate 24. As shown in FIG. 2, the resistance adjustment unit 23 includes a first electric circuit 26a including the resistance plate 24, a second electric circuit 26b that bypasses the resistance plate 24, and the first and second electric circuits 26a and 26b. And an electric circuit switching unit 27 for switching to the electric circuit. The electric circuit switching unit 27 includes a switch, a disconnection unit, and the like, and is provided on the second electric circuit 26b.
また、電池パック２０は、電動工具本体１０側に設けた電源端子１６ａ，１６ｂと電気的接続を図る電源端子２８ａ，２８ｂを備えている。そして、二次電池２２のプラス側端子は、抵抗調整ユニット２３を介して電源端子２８ａに接続され、マイナス側端子は、二次電池２２の内部抵抗２９を介して電源端子２８ｂに接続されている。 The battery pack 20 also includes power terminals 28a and 28b that are electrically connected to the power terminals 16a and 16b provided on the power tool body 10 side. The positive side terminal of the secondary battery 22 is connected to the power supply terminal 28 a via the resistance adjustment unit 23, and the negative side terminal is connected to the power supply terminal 28 b via the internal resistance 29 of the secondary battery 22. .
次に、電池パック２０の電動工具本体１０に対する装着態様を説明する。
電動工具本体１０と電池パック２０との相互関係において、二次電池２２の本来の内部抵抗２９のみの電池パック２０を用いても電動工具本体１０側で支障を来さない場合、電池パック２０内の抵抗調整ユニット２３では、抵抗板２４を迂回する第２電路２６ｂ側が選択されるように電路切替部２７を機能させる。例えば電路切替部２７がスイッチであれば閉、断路部であれば断路しない。つまり、二次電池２２と電源端子２８ａとの間に抵抗板２４が介在しないようにする。
Next, how the battery pack 20 is attached to the electric tool body 10 will be described.
In the interrelationship between the electric power tool body 10 and the battery pack 20, if there is no trouble on the electric power tool body 10 side even if the battery pack 20 having only the internal resistance 29 of the secondary battery 22 is used, In the resistance adjustment unit 23, the electric circuit switching unit 27 is caused to function so that the second electric circuit 26b side that bypasses the resistance plate 24 is selected. For example, if the electric circuit switching unit 27 is a switch, it is closed. That is, the resistor plate 24 is not interposed between the secondary battery 22 and the power supply terminal 28a.
一方、電動工具本体１０と電池パック２０との相互関係において、二次電池２２の本来の内部抵抗２９のみの電池パック２０を用いることで内部抵抗不足となって電動工具本体１０側で支障を来す懸念がある場合、電池パック２０内の抵抗調整ユニット２３では、抵抗板２４を含む第１電路２６ａ側が選択されるように電路切替部２７を機能させる。例えば電路切替部２７がスイッチであれば開、断路部であれば断路させる。つまり、二次電池２２と電源端子２８ａとの間に抵抗板２４を介在（付加）させて電池パック２０の内部抵抗が高められ、電動工具本体１０側に過電流が供給されることが未然に防止されるようになっている。 On the other hand, in the interrelationship between the power tool body 10 and the battery pack 20, the use of the battery pack 20 having only the original internal resistance 29 of the secondary battery 22 results in insufficient internal resistance, causing trouble on the power tool body 10 side. If there is a concern, the resistance adjustment unit 23 in the battery pack 20 causes the electric circuit switching unit 27 to function so that the first electric circuit 26a side including the resistance plate 24 is selected. For example, if the electric circuit switching unit 27 is a switch, it is opened, and if the electric circuit switching unit 27 is a disconnection unit, it is disconnected. That is, the internal resistance of the battery pack 20 is increased by interposing (adding) the resistance plate 24 between the secondary battery 22 and the power supply terminal 28a, and an overcurrent is supplied to the power tool body 10 side in advance. It is to be prevented.
本実施形態では、このような抵抗調整ユニット２３を電池パック２０内に備えることで、電池パック２０の汎用性が高いものとなり、電池パック２０の使用範囲（電動工具本体１０の適用機種）を広げることが可能である。 In this embodiment, by providing such a resistance adjustment unit 23 in the battery pack 20, the versatility of the battery pack 20 becomes high, and the usage range of the battery pack 20 (applicable models of the electric power tool body 10) is expanded. It is possible.
次に、本実施形態の効果を記載する。
（１）電池パック２０には、電池パック２０内の二次電池２２の本来の内部抵抗２９に付加可能な調整用抵抗（抵抗板２４）を有する抵抗調整ユニット２３が備えられる。電動工具本体１０側との兼ね合いで、不要時には調整用抵抗（抵抗板２４）を迂回する第２電路２６ｂが選択され、必要時には調整用抵抗（抵抗板２４）を含む第１電路２６ａが選択され、電池パック２０全体の内部抵抗が調整可能となっている。これにより、種々の電動工具本体１０に応じて内部抵抗の調整を行うことで電池パック２０の汎用性が高くなり、電池パック２０の使用範囲（電動工具本体１０の適用機種）を広げることができる。
Next, the effect of this embodiment will be described.
(1) The battery pack 20 includes a resistance adjustment unit 23 having an adjustment resistor (resistance plate 24) that can be added to the original internal resistance 29 of the secondary battery 22 in the battery pack 20. In consideration of the power tool body 10 side, the second electric circuit 26b that bypasses the adjustment resistor (resistor plate 24) is selected when unnecessary, and the first electric circuit 26a including the adjustment resistor (resistor plate 24) is selected when necessary. The internal resistance of the entire battery pack 20 can be adjusted. Thereby, the versatility of the battery pack 20 is enhanced by adjusting the internal resistance according to various power tool bodies 10, and the usage range of the battery pack 20 (applicable models of the power tool body 10) can be expanded. .
（２）抵抗調整ユニット２３に備えられる調整用抵抗として、金属板材にて作製された抵抗板２４が用いられる。つまり、調整用抵抗（抵抗板２４）を簡易に構成することができる。 (2) As the adjustment resistor provided in the resistance adjustment unit 23, a resistance plate 24 made of a metal plate material is used. That is, the adjustment resistor (resistor plate 24) can be easily configured.
（３）抵抗調整ユニット２３の抵抗板２４は、断熱材２５で覆われて構成される。これにより、抵抗板２４での発熱の周囲への伝達（例えば二次電池２２側への伝達）を抑制でき、周囲の熱による影響を抑制することができる。 (3) The resistance plate 24 of the resistance adjustment unit 23 is configured to be covered with a heat insulating material 25. Thereby, the transmission of the heat generated by the resistance plate 24 to the surroundings (for example, the transmission to the secondary battery 22 side) can be suppressed, and the influence of the surrounding heat can be suppressed.
なお、上記実施形態は、以下のように変更してもよい。
・図３に示すように、抵抗板２４の一部に側方から切り欠くことで形成される幅狭部３０ａや、孔を開けることで形成される幅狭部３０ｂを設け、所定電流値以上の過電流にて溶断するように構成してもよい。つまり、幅狭部３０ａ，幅狭部３０ｂを設けることで、抵抗板２４をヒューズとして機能させることもできる。
In addition, you may change the said embodiment as follows.
As shown in FIG. 3, a narrow portion 30a formed by cutting out a part of the resistor plate 24 from the side and a narrow portion 30b formed by opening a hole are provided, and a predetermined current value or more is provided. You may comprise so that it may melt | fuse by the overcurrent of. That is, the resistor plate 24 can also function as a fuse by providing the narrow portion 30a and the narrow portion 30b.
・また同図３に示すように、抵抗板２４にサーミスタ等の温度センサ３１を一体に組み付けて構成してもよい。例えば温度センサ３１による抵抗板２４の温度検出を行うことで、抵抗板２４を流れる電流が過電流となっているか、つまりモータ１３が過負荷な状態かを判定するようにしてもよい。また、抵抗板２４を流れる電流と抵抗板２４の温度との相関関係から、温度センサ３１による電流検出も可能である。抵抗板２４に温度センサ３１を一体に組み付ける構成とすることで、電池パック２０の組立性の向上等が期待できる。 As shown in FIG. 3, a temperature sensor 31 such as a thermistor may be integrally assembled with the resistance plate 24. For example, the temperature of the resistance plate 24 may be detected by the temperature sensor 31 to determine whether the current flowing through the resistance plate 24 is an overcurrent, that is, whether the motor 13 is in an overload state. Further, current detection by the temperature sensor 31 is also possible from the correlation between the current flowing through the resistance plate 24 and the temperature of the resistance plate 24. By adopting a configuration in which the temperature sensor 31 is assembled integrally with the resistance plate 24, an improvement in the assemblability of the battery pack 20 can be expected.
・抵抗調整ユニット２３（抵抗板２４）を電池パック２０に一体に組み込むのではなく、図４に示すように、抵抗板２４を有するアダプタ４０として電池パック２０ａとは別体で構成し、電動工具１ａに対して外付けする構成としてもよい。図４のアダプタ４０は、電動工具本体１０と電池パック２０ａとの間に介装されるものであり、それぞれに着脱可能に構成される。アダプタ４０は、電池パック２０ａ内の二次電池２２の本来の内部抵抗２９（図２参照）に付加可能な調整用抵抗（抵抗板２４）を有しており、電動工具１ａに対する装着・非装着にて電池パック２０ａ側全体としての内部抵抗を調整する。すなわち、アダプタ４０を用いず内部抵抗２９のみとするか、アダプタ４０を用いて内部抵抗２９に調整用抵抗（抵抗板２４）を付加するかの調整が行われる。つまり、必要時にのみアダプタ４０を用いて対応することができる。アダプタ４０を用意することで、電池パック２０ａの汎用性を高めることができる。なお、アダプタは、電動工具本体１０側のみに外付け可能、又は電池パック２０ａ側のみに外付け可能であってもよい。 The resistance adjustment unit 23 (resistance plate 24) is not integrated into the battery pack 20, but as shown in FIG. 4, the adapter 40 having the resistance plate 24 is configured separately from the battery pack 20a, and the electric tool It is good also as a structure attached externally with respect to 1a. The adapter 40 of FIG. 4 is interposed between the electric tool main body 10 and the battery pack 20a, and is configured to be detachable from each other. The adapter 40 has an adjustment resistor (resistor plate 24) that can be added to the original internal resistor 29 (see FIG. 2) of the secondary battery 22 in the battery pack 20a, and is attached / not attached to the electric tool 1a. The internal resistance of the battery pack 20a as a whole is adjusted. In other words, adjustment is made as to whether only the internal resistor 29 is used without using the adapter 40 or whether an adjustment resistor (resistor plate 24) is added to the internal resistor 29 using the adapter 40. That is, the adapter 40 can be used only when necessary. By preparing the adapter 40, the versatility of the battery pack 20a can be enhanced. The adapter may be externally attached only to the power tool body 10 side, or may be externally attached only to the battery pack 20a side.
次に、上記実施形態及び別例から把握できる技術的思想を以下に追記する。
（付記１）モータ及び制御回路を含んで構成される電動工具本体に対して着脱可能であり、前記電動工具本体への装着により前記電動工具本体側に電力供給を行う電動工具用の電池パックであって、
前記電池パック内の二次電池本来の内部抵抗に付加可能な調整用抵抗を有し、前記電池パック全体の内部抵抗を調整可能な抵抗調整部を備えたことを特徴とする電池パック。
Next, a technical idea that can be grasped from the above embodiment and another example will be added below.
(Supplementary Note 1) A battery pack for an electric tool that is detachable from an electric tool main body including a motor and a control circuit, and supplies electric power to the electric tool main body side by being attached to the electric tool main body. There,
A battery pack comprising an adjustment resistor that can be added to an original internal resistance of the secondary battery in the battery pack, and a resistance adjusting unit that can adjust the internal resistance of the entire battery pack.
（付記２）付記１に記載の電池パックにおいて、
前記調整用抵抗は、金属板材にて作製された抵抗板にて構成されていることを特徴とする電池パック。
(Appendix 2) In the battery pack according to Appendix 1,
The battery pack is characterized in that the adjusting resistor is formed of a resistor plate made of a metal plate material.
（付記３）付記２に記載の電池パックにおいて、
前記抵抗板は、一部に幅狭部が形成され、過電流により溶断可能に構成されていることを特徴とする電池パック。
(Appendix 3) In the battery pack according to Appendix 2,
The resistance plate has a narrow portion formed in part and is configured to be blown by overcurrent.
（付記４）付記２又は３に記載の電池パックにおいて、
前記抵抗板は、断熱材で覆われて構成されていることを特徴とする電池パック。
（付記５）付記２〜４の何れか一項に記載の電池パックにおいて、
前記抵抗板は、温度センサを一体に組付可能に構成されていることを特徴とする電池パック。
(Appendix 4) In the battery pack according to Appendix 2 or 3,
The battery pack is characterized in that the resistance plate is covered with a heat insulating material.
(Appendix 5) In the battery pack according to any one of appendices 2 to 4,
The resistance plate is configured so that a temperature sensor can be assembled integrally.
（付記６）モータ及び制御回路を含んで構成される電動工具本体と、前記電動工具本体に対して着脱可能であり装着により前記電動工具本体側に電力供給を行う電池パックとを備える電動工具に対し外付け可能なアダプタであって、
前記アダプタは、前記電池パック内の二次電池本来の内部抵抗に付加可能な調整用抵抗を有し、前記電動工具に対する装着・非装着にて前記電池パック側の内部抵抗を調整可能に構成されていることを特徴とするアダプタ。
(Additional remark 6) In an electric tool provided with the electric tool main body comprised including a motor and a control circuit, and the battery pack which can be attached or detached with respect to the said electric tool main body, and supplies electric power to the said electric tool main body side by mounting | wearing. An adapter that can be attached externally,
The adapter has an adjustment resistor that can be added to the internal resistance inherent in the secondary battery in the battery pack, and is configured to be able to adjust the internal resistance on the battery pack side when the power tool is attached or not attached. An adapter characterized by
（付記７）付記６に記載のアダプタにおいて、
前記電動工具本体と前記電池パックとの間に介装されるものであり、それぞれに着脱可能に構成されていることを特徴とするアダプタ。
(Appendix 7) In the adapter described in Appendix 6,
An adapter that is interposed between the electric power tool body and the battery pack, and is configured to be detachable from each other.
１，１ａ…電動工具、１０…電動工具本体、１３…モータ、１４…制御回路、２０，２０ａ…電池パック、２３…抵抗調整ユニット、２４…抵抗板（調整用抵抗）、２５…断熱材、２９…内部抵抗、３０ａ，３０ｂ…幅狭部、３１…温度センサ、４０…アダプタ。 DESCRIPTION OF SYMBOLS 1, 1a ... Electric tool, 10 ... Electric tool main body, 13 ... Motor, 14 ... Control circuit, 20, 20a ... Battery pack, 23 ... Resistance adjustment unit, 24 ... Resistance board (resistance for adjustment), 25 ... Thermal insulation, 29 ... Internal resistance, 30a, 30b ... Narrow part, 31 ... Temperature sensor, 40 ... Adapter.
Claims (7)
前記電池パック内の二次電池本来の内部抵抗に付加可能な調整用抵抗を含む第１電路と、前記調整用抵抗を迂回する第２電路と、前記第１電路及び前記第２電路の何れかの電路に切り替える電路切替部とを有し、前記電池パック全体の内部抵抗を調整可能な抵抗調整ユニットを備えたことを特徴とする電池パック。 A battery pack for an electric tool that is detachable from an electric tool main body including a motor and a control circuit, and supplies electric power to the electric power tool main body by being attached to the electric power tool main body,
One of the first electric circuit including an adjusting resistor that can be added to the original internal resistance of the secondary battery in the battery pack, the second electric circuit that bypasses the adjusting resistor, the first electric circuit, and the second electric circuit A battery pack comprising: a resistance adjustment unit that can adjust the internal resistance of the battery pack as a whole.
前記調整用抵抗は、金属板材にて作製された抵抗板にて構成されていることを特徴とする電池パック。 The battery pack according to claim 1,
The battery pack is characterized in that the adjusting resistor is formed of a resistor plate made of a metal plate material.
前記抵抗板は、一部に幅狭部が形成され、過電流により溶断可能に構成されていることを特徴とする電池パック。 The battery pack according to claim 2,
The resistance plate has a narrow portion formed in part and is configured to be blown by overcurrent.
前記抵抗板は、断熱材で覆われて構成されていることを特徴とする電池パック。 The battery pack according to claim 2 or 3,
The battery pack is characterized in that the resistance plate is covered with a heat insulating material.
前記抵抗板は、温度センサを一体に組付可能に構成されていることを特徴とする電池パック。 In the battery pack according to any one of claims 2 to 4,
The resistance plate is configured so that a temperature sensor can be assembled integrally.
前記アダプタは、前記電池パック内の二次電池本来の内部抵抗に付加可能な調整用抵抗を含む第１電路と、前記調整用抵抗を迂回する第２電路と、前記第１電路及び前記第２電路の何れかの電路に切り替える電路切替部とを有し、前記電動工具に対する装着・非装着にて前記電池パック側の内部抵抗を調整可能に構成されていることを特徴とするアダプタ。 A power tool body including a motor and a control circuit, and a battery pack that is detachable from the power tool body and supplies power to the power tool body side when mounted can be externally attached to the power tool. An adapter,
The adapter includes a first electric circuit including an adjustment resistor that can be added to an original internal resistance of the secondary battery in the battery pack, a second electric circuit that bypasses the adjustment resistor, the first electric circuit, and the second electric circuit. An adapter comprising: an electric circuit switching unit configured to switch to any one of the electric circuits, and configured to be capable of adjusting an internal resistance on the battery pack side by being attached to or not attached to the electric tool.
前記電動工具本体と前記電池パックとの間に介装されるものであり、それぞれに着脱可能に構成されていることを特徴とするアダプタ。
The adapter according to claim 6, wherein
An adapter that is interposed between the electric power tool body and the battery pack, and is configured to be detachable from each other.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2021075743A1 (en) * | 2019-10-18 | 2021-04-22 | 주식회사 엘지화학 | Battery pack and vehicle comprising battery pack |
| WO2021235738A1 (en) * | 2020-05-22 | 2021-11-25 | 주식회사 엘지에너지솔루션 | Battery pack, battery rack including same, and power storage device |
| US12394829B2 (en) | 2019-09-26 | 2025-08-19 | Makita Corporation | Battery pack |
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| FR3072504A1 (en) * | 2017-10-17 | 2019-04-19 | Blue Solutions | ELECTRIC ENERGY STORAGE ELEMENT WITH INTEGRATED LEAK RESISTANCE AND MODULE INCORPORATING A PLURALITY OF SUCH ELEMENTS |
| KR102709974B1 (en) * | 2019-07-10 | 2024-09-24 | 주식회사 엘지에너지솔루션 | Battery module, battery rack and energy storage system comprising the battery module |
| JP2021118165A (en) * | 2020-01-29 | 2021-08-10 | パナソニックＩｐマネジメント株式会社 | Battery pack and power tool |
| CN114362342B (en) * | 2020-09-30 | 2024-03-15 | 南京泉峰科技有限公司 | Power tool systems and battery packs |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP4827476B2 (en) * | 2005-09-22 | 2011-11-30 | 三洋電機株式会社 | Pack battery |
| JP2013191286A (en) * | 2012-03-12 | 2013-09-26 | Max Co Ltd | Battery pack |
| JP6104717B2 (en) * | 2013-05-31 | 2017-03-29 | 株式会社マキタ | Adapter unit, electric work machine set |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US12394829B2 (en) | 2019-09-26 | 2025-08-19 | Makita Corporation | Battery pack |
| WO2021075743A1 (en) * | 2019-10-18 | 2021-04-22 | 주식회사 엘지화학 | Battery pack and vehicle comprising battery pack |
| KR20210046404A (en) * | 2019-10-18 | 2021-04-28 | 주식회사 엘지화학 | Battery pack and vehicle comprising the battery pack |
| KR102792385B1 (en) * | 2019-10-18 | 2025-04-04 | 주식회사 엘지에너지솔루션 | Battery pack and vehicle comprising the battery pack |
| WO2021235738A1 (en) * | 2020-05-22 | 2021-11-25 | 주식회사 엘지에너지솔루션 | Battery pack, battery rack including same, and power storage device |
| US12412937B2 (en) | 2020-05-22 | 2025-09-09 | Lg Energy Solution, Ltd. | Battery pack, battery rack comprising the same and energy storage system |
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