WO2013138955A1 - Lithium battery pack interface socket used for electric tool - Google Patents

Lithium battery pack interface socket used for electric tool Download PDF

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Publication number
WO2013138955A1
WO2013138955A1 PCT/CN2012/000548 CN2012000548W WO2013138955A1 WO 2013138955 A1 WO2013138955 A1 WO 2013138955A1 CN 2012000548 W CN2012000548 W CN 2012000548W WO 2013138955 A1 WO2013138955 A1 WO 2013138955A1
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WO
WIPO (PCT)
Prior art keywords
battery pack
lithium battery
power tool
upper cover
tool according
Prior art date
Application number
PCT/CN2012/000548
Other languages
French (fr)
Chinese (zh)
Inventor
孙延新
Original Assignee
无锡市新菊电动工具有限公司
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Publication date
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Publication of WO2013138955A1 publication Critical patent/WO2013138955A1/en

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/052—Li-accumulators
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2220/00—Batteries for particular applications
    • H01M2220/30—Batteries in portable systems, e.g. mobile phone, laptop
    • 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

Definitions

  • the present invention relates to a power tool using a DC power source, and more particularly to a lithium battery pack socket for a power tool.
  • lithium batteries are now widely used in DC power tools such as electric drills, electric hammers, jigsaws, electric circular saws, reciprocating saws, angle grinders, and pruners. , lawn mowers, garden tools, etc.
  • the two batteries in the battery pack are generally connected in parallel to increase the output power of the single battery pack, that is, the structure of the double battery pack is required, which will increase the single battery pack.
  • the cost of the power tool is greatly increased when the power tool is usually equipped with two battery packs at the factory.
  • the present invention is directed to the above problem, and provides a lithium battery pack interface seat for a power tool, which fully utilizes the existing two single battery packs, and the design of the lithium battery pack interface seat can be increased little.
  • the series or parallel connection of the product structure is realized, and the power tools such as DC electric circular saw, angle grinder, electric hammer and grass cutter are directly provided with large power to ensure the use capability.
  • a lithium battery pack interface seat for a power tool is a hollow box body, and is composed of an upper cover and a lower cover fixed together, and an upper surface of the upper cover is disposed
  • the two battery pack mounting slots are juxtaposed on the upper cover.
  • the battery clip is located between the upper cover and the lower cover, and the upper cover is exposed from the battery pack mounting groove.
  • the battery clip is fixed to the upper cover by a battery clamping plate.
  • the battery clamping plate is provided with a pressing plate fixing hole, and the upper cover is provided with a pressing plate fixing column corresponding to the pressing plate fixing hole.
  • the upper cover is provided with a pin
  • the lower cover is provided with a pin seat, and the pin is matched with the pin seat.
  • the pin protrudes from a joint surface between the upper cover and the lower cover, and an upper surface of the pin seat is lower than a joint surface between the upper cover and the lower cover.
  • the bottom of the lower cover is provided with a wire hole.
  • a plurality of positioning posts are disposed on the bottom surface of the lower cover, and the positioning posts position the interface seat on the power tool body.
  • the positioning post is provided with an axial screw hole.
  • the technical effect of the invention is as follows:
  • the invention is provided with two battery clips which can be connected in series or in parallel, and can simultaneously use two lithium battery packs which are arranged at the factory when the power tool is used, and are DC electric circular saws, angle grinds, electric hammers, hits.
  • the power tool with a large working power such as a grass machine provides a power source to ensure its working ability.
  • the invention has the advantages of simple structure, compactness, reasonableness, low cost, effective control of the cost of using the power tool of the invention, and reduction of energy waste.
  • FIG. 1 is a schematic perspective view showing the use of the power tool of the present invention.
  • FIG. 2 is a schematic perspective view of the present invention.
  • Figure 3 is an exploded view of the present invention.
  • Figure 4 is an exploded view of another direction of the present invention.
  • the present invention is a lithium battery pack socket for a power tool, on which two lithium battery packs 2 can be simultaneously mounted to supply power to the power tool main body 1.
  • the interface base 3 is a hollow casing, and is constructed by fixing the upper cover 4 and the lower cover 6 together by screws.
  • the upper cover 4 is provided with a pin 8 protruding from the joint surface between the upper cover 4 and the lower cover 6.
  • the lower cover 6 is provided with a pin seat 12 which cooperates with the pin 8, and the upper surface of the pin seat 12 is low.
  • the upper cover 4 and the lower cover 6 are positioned by the pin 8 and the pin holder 12 to prevent misalignment between the upper cover 4 and the lower cover 6.
  • the upper surface of the upper cover 4 is provided with two battery pack mounting grooves 7, and the two battery pack mounting grooves 7 are preferably juxtaposed on the upper cover 4.
  • a battery clip 5 for fixing the lithium battery pack 2 is installed in each of the battery pack mounting slots 7, and the two battery clips 5 are connected in series or in parallel.
  • the battery clip 5 is located between the upper cover 4 and the lower cover 6, and is fixed on the upper cover 4 by the battery clamping plate 9.
  • the battery clamping plate 9 is provided with a pressing plate fixing hole 10, and the upper cover 4 is provided with the pressing plate fixing hole 10.
  • Corresponding pressure plate fixing column 15, the battery clamping plate 9 is fixed to the pressure plate fixing column 15 of the upper cover 4 by screws, thereby pressing the battery clamp 5.
  • the upper portion of the battery holder 5 is exposed from the battery pack mounting groove 7 to the upper cover 4, and the lower portion of the battery holder 5 is provided with a terminal 14 for wiring.
  • the bottom of the lower cover 6 is provided with a wire hole 11, and the wire of the battery holder 5 is passed through the wire hole 11 to be connected to the circuit in the motor body 1.
  • a plurality of positioning posts 13 are also disposed on the bottom surface of the lower cover 6, and the positioning post 13 positions the interface base 3 on the power tool main body 1.
  • An axial screw hole is also formed in the positioning post 13, and the lower cover 6 is fixed to the electric tool main body 1 by screws.
  • the invention is provided with two battery clips 5 which can be connected in series or in parallel, and can simultaneously use two lithium battery packs 2 which are arranged at the time of leaving the power tool, and the power is large for the DC electric circular saw, the angle grinder, the electric hammer and the grass cutter.
  • the power tool supplies power, and the series circuit makes the power supply voltage rise to twice the battery pack voltage, at the same power In this case, the operating current of the power tool can be effectively reduced; the parallel circuit doubles the battery capacity so that the tool can obtain a larger operating current, which satisfies both the power requirement of the power tool and the working protection current requirement of the battery pack. It also ensures the working ability of high-power electric tools.
  • the structure of the invention is simple, compact, reasonable, and low in cost, and the cost of using the high-power electric tool of the present invention is effectively controlled, and waste of energy is reduced.

Abstract

A lithium battery pack interface socket used for an electric tool. The interface socket (3) is a hollow box body, and is composed of an upper cover (4) and a lower cover (6) which are fixed together. The upper surface of the upper cover (4) is provided with two battery pack installing grooves (7), each battery pack installing groove (7) is provided therein with a battery clamp (5) for fixing a lithium battery pack (2), and the two battery clamps are connected in series or connected in parallel. Simultaneously using the two lithium battery packs configured when an electric tool is dispatched from the factory to provide a power supply for the electric tool can guarantee the operating capability of the electric tool.

Description

用于电动工具的锂电池包接口座 技术领域  Lithium battery pack interface for power tools
本发明涉及采用直流电源的电动工具， 具体地说是一种用于电动工具的锂 电池包接口座。  The present invention relates to a power tool using a DC power source, and more particularly to a lithium battery pack socket for a power tool.
背景技术 Background technique
锂电池作为一种最常见的电动工具供电装置， 由于节能环保的优势， 现在 被广泛应用于直流电动工具， 如电钻、 电锤、 曲线锯、 电圆锯、 往复锯、 角磨、 修枝机、 打草机、 园林工具等。  As one of the most common power supply devices for electric tools, lithium batteries are now widely used in DC power tools such as electric drills, electric hammers, jigsaws, electric circular saws, reciprocating saws, angle grinders, and pruners. , lawn mowers, garden tools, etc.
采用锂电池供电的电动工具大多采用单并电池包， 但是， 单并锂电池有保 护电流 25-30A的限制， 无法满足直流电圆锯、 角磨、 电锤、 打草机等工作功率 比较大的电动工具的使用要求， 严重影响了这些电动工具的使用能力， 使得这 些工具不能满足原来采用镍镉 /镍氢电池可以达到的工作能力。  Most of the power tools powered by lithium batteries use single-battery battery packs. However, single-cell lithium batteries have a limit of 25-30A protection current, which cannot meet the requirements of DC electric circular saws, angle grinders, electric hammers, lawn mowers, etc. The use requirements of power tools have seriously affected the ability of these power tools to be used, so that these tools can not meet the working capacity of the original nickel-cadmium / nickel-hydrogen battery.
为了满足大工作功率的电动工具的使用要求， 一般采用电池包内两节电池 并联的方式来增加单个电池包的输出功率， 即需要做成双并电池包的结构， 这 必将增加单个电池包的成本； 而电动工具在出厂时一般配备两个电池包， 就使 得电动工具的成本大大增加。  In order to meet the requirements of the power tool for large working power, the two batteries in the battery pack are generally connected in parallel to increase the output power of the single battery pack, that is, the structure of the double battery pack is required, which will increase the single battery pack. The cost of the power tool is greatly increased when the power tool is usually equipped with two battery packs at the factory.
发明内容 Summary of the invention
本发明针对上述问题， 提供一种用于电动工具的锂电池包接口座， 充分利 用出货现有的两个单并电池包， 利用该锂电池包接口座的设计就可以在增加不 多的成本的前提下实现产品结构上的串联或并联， 实现为直流电圆锯、 角磨、 电锤、 打草机等电动工具直接提供较大的功率， 保证其使用能力。  The present invention is directed to the above problem, and provides a lithium battery pack interface seat for a power tool, which fully utilizes the existing two single battery packs, and the design of the lithium battery pack interface seat can be increased little. Under the premise of cost, the series or parallel connection of the product structure is realized, and the power tools such as DC electric circular saw, angle grinder, electric hammer and grass cutter are directly provided with large power to ensure the use capability.
按照本发明的技术方案： 一种用于电动工具的锂电池包接口座， 所述接口 座为中空的盒体， 由固定在一起的上盖与下盖构成， 所述上盖的上表面设置有 两个电池包安装槽， 每个所述电池包安装槽内安装有一个固定锂电池包的电池 夹， 两个所述电池夹串联或并联连接。  According to the technical solution of the present invention: a lithium battery pack interface seat for a power tool, the interface seat is a hollow box body, and is composed of an upper cover and a lower cover fixed together, and an upper surface of the upper cover is disposed There are two battery pack mounting slots, and each of the battery pack mounting slots is provided with a battery clip for fixing a lithium battery pack, and the two battery clips are connected in series or in parallel.
所述两个电池包安装槽并列设置在所述上盖上。  The two battery pack mounting slots are juxtaposed on the upper cover.
所述电池夹位于所述上盖与所述下盖之间， 并且从所述电池包安装槽内露 出所述上盖。  The battery clip is located between the upper cover and the lower cover, and the upper cover is exposed from the battery pack mounting groove.
所述电池夹由电池夹压板固定在所述上盖上。  The battery clip is fixed to the upper cover by a battery clamping plate.
所述电池夹压板上开有压板固定孔， 所述上盖上设置有与所述压板固定孔 相对应的压板固定柱。  The battery clamping plate is provided with a pressing plate fixing hole, and the upper cover is provided with a pressing plate fixing column corresponding to the pressing plate fixing hole.
所述上盖上设置有销柱， 所述下盖上设置有销柱座， 所述销柱与所述销柱 座相配合。  The upper cover is provided with a pin, and the lower cover is provided with a pin seat, and the pin is matched with the pin seat.
所述销柱突出于所述上盖与所述下盖之间的结合面， 所述销柱座的上表面 低于所述上盖与所述下盖之间的结合面。  The pin protrudes from a joint surface between the upper cover and the lower cover, and an upper surface of the pin seat is lower than a joint surface between the upper cover and the lower cover.
所述下盖的底部设置有电线孔。  The bottom of the lower cover is provided with a wire hole.
所述下盖的底面上设置有多个定位柱， 所述定位柱将所述接口座定位在电 动工具主体上。 所述定位柱上开有轴向的螺钉孔。 A plurality of positioning posts are disposed on the bottom surface of the lower cover, and the positioning posts position the interface seat on the power tool body. The positioning post is provided with an axial screw hole.
本发明的技术效果在于： 本发明结构上设置有两个可以串联或并联的电池 夹， 可同时使用电动工具出厂时配置的两个锂电池包， 为直流电圆锯、 角磨、 电锤、 打草机等工作功率偏大的电动工具提供电源， 保证其工作能力； 本发明 结构简单、 紧凑， 合理， 成本低， 使用本发明的电动工具成本得到有效控制， 并且减少了能源的浪费。  The technical effect of the invention is as follows: The invention is provided with two battery clips which can be connected in series or in parallel, and can simultaneously use two lithium battery packs which are arranged at the factory when the power tool is used, and are DC electric circular saws, angle grinds, electric hammers, hits. The power tool with a large working power such as a grass machine provides a power source to ensure its working ability. The invention has the advantages of simple structure, compactness, reasonableness, low cost, effective control of the cost of using the power tool of the invention, and reduction of energy waste.
附图说明 DRAWINGS
图 1为使用本发明的电动工具的立体结构示意图。  1 is a schematic perspective view showing the use of the power tool of the present invention.
图 2为本发明的立体结构示意图。  2 is a schematic perspective view of the present invention.
图 3为本发明的爆炸图。  Figure 3 is an exploded view of the present invention.
图 4为本发明另一方向的爆炸图。  Figure 4 is an exploded view of another direction of the present invention.
具体实施方式 detailed description
下面结合附图对本发明的具体实施方式作进一步的说明。  The specific embodiments of the present invention are further described below in conjunction with the accompanying drawings.
图 1〜图 4中， 包括电动工具主体 1、 锂电池包 2、 接口座 3、 上盖 4、 电池 夹 5、 下盖 6、 电池包安装槽 7、 销柱 8、 电池夹压板 9、 压板固定孔 10、 电线 孔 11、 销柱座 12、 定位柱 13、 接线柱 14、 压板固定柱 15等。  1 to 4, including power tool main body 1, lithium battery pack 2, interface holder 3, upper cover 4, battery holder 5, lower cover 6, battery pack mounting groove 7, pin 8, battery clamp plate 9, and pressure plate The fixing hole 10, the wire hole 11, the pin holder 12, the positioning post 13, the terminal 14, the platen fixing column 15, and the like.
如图 1 所示， 本发明是一种用于电动工具的锂电池包接口座， 该接口座 3 上可同时安装两个锂电池包 2为电动工具主体 1供电。  As shown in Fig. 1, the present invention is a lithium battery pack socket for a power tool, on which two lithium battery packs 2 can be simultaneously mounted to supply power to the power tool main body 1.
如图 2〜图 4所示， 该接口座 3为中空的盒体， 由上盖 4与下盖 6通过螺钉 固定在一起而构成。上盖 4上设置有突出于上盖 4与下盖 6之间结合面的销柱 8， 下盖 6上设置有与销柱 8相配合的销柱座 12，销柱座 12的上表面低于上盖 4与 下盖 6之间的结合面。 上盖 4与下盖 6通过销柱 8与销柱座 12相配合来定位， 可以防止上盖 4与下盖 6之间的错位。  As shown in Fig. 2 to Fig. 4, the interface base 3 is a hollow casing, and is constructed by fixing the upper cover 4 and the lower cover 6 together by screws. The upper cover 4 is provided with a pin 8 protruding from the joint surface between the upper cover 4 and the lower cover 6. The lower cover 6 is provided with a pin seat 12 which cooperates with the pin 8, and the upper surface of the pin seat 12 is low. The joint surface between the upper cover 4 and the lower cover 6. The upper cover 4 and the lower cover 6 are positioned by the pin 8 and the pin holder 12 to prevent misalignment between the upper cover 4 and the lower cover 6.
上盖 4的上表面设置有两个电池包安装槽 7，两个电池包安装槽 7最好并列 设置在上盖 4上。每个电池包安装槽 7内安装有一个固定锂电池包 2的电池夹 5， 两个电池夹 5之间串联或并联连接。  The upper surface of the upper cover 4 is provided with two battery pack mounting grooves 7, and the two battery pack mounting grooves 7 are preferably juxtaposed on the upper cover 4. A battery clip 5 for fixing the lithium battery pack 2 is installed in each of the battery pack mounting slots 7, and the two battery clips 5 are connected in series or in parallel.
电池夹 5位于上盖 4与下盖 6之间， 由电池夹压板 9固定在上盖 4上， 电 池夹压板 9上开有压板固定孔 10，上盖 4上设置有与压板固定孔 10相对应的压 板固定柱 15， 电池夹压板 9由螺钉固定在上盖 4的压板固定柱 15上， 从而将电 池夹 5压紧。 电池夹 5的上部从电池包安装槽 7内露出上盖 4， 电池夹 5的下部 设置有接线柱 14, 供接线用。  The battery clip 5 is located between the upper cover 4 and the lower cover 6, and is fixed on the upper cover 4 by the battery clamping plate 9. The battery clamping plate 9 is provided with a pressing plate fixing hole 10, and the upper cover 4 is provided with the pressing plate fixing hole 10. Corresponding pressure plate fixing column 15, the battery clamping plate 9 is fixed to the pressure plate fixing column 15 of the upper cover 4 by screws, thereby pressing the battery clamp 5. The upper portion of the battery holder 5 is exposed from the battery pack mounting groove 7 to the upper cover 4, and the lower portion of the battery holder 5 is provided with a terminal 14 for wiring.
下盖 6的底部设置有电线孔 11， 电池夹 5的接线从电线孔 11中穿出， 与电 动工具主体 1中的电路相连。  The bottom of the lower cover 6 is provided with a wire hole 11, and the wire of the battery holder 5 is passed through the wire hole 11 to be connected to the circuit in the motor body 1.
下盖 6的底面上还设置有多个定位柱 13，定位柱 13将接口座 3定位在电动 工具主体 1上。 在定位柱 13上还幵有轴向的螺钉孔， 下盖 6通过螺钉固定在电 动工具主体 1上。  A plurality of positioning posts 13 are also disposed on the bottom surface of the lower cover 6, and the positioning post 13 positions the interface base 3 on the power tool main body 1. An axial screw hole is also formed in the positioning post 13, and the lower cover 6 is fixed to the electric tool main body 1 by screws.
本发明上设置有两个可以串联或并联的电池夹 5，可同时使用电动工具出厂 时配置的两个锂电池包 2， 为直流电圆锯、 角磨、 电锤、 打草机等功率偏大的电 动工具提供电源， 串联电路使电源电压升至两倍的电池包电压， 在同等功率的 情况下， 可有效降低电动工具的工作电流； 并联电路使电池容量升至两倍从而 使得工具可以获得更大工作电流， 既满足电动工具的功率要求又可满足单电池 包的工作保护电流要求， 更保证了大功率电动工具的工作能力。 The invention is provided with two battery clips 5 which can be connected in series or in parallel, and can simultaneously use two lithium battery packs 2 which are arranged at the time of leaving the power tool, and the power is large for the DC electric circular saw, the angle grinder, the electric hammer and the grass cutter. The power tool supplies power, and the series circuit makes the power supply voltage rise to twice the battery pack voltage, at the same power In this case, the operating current of the power tool can be effectively reduced; the parallel circuit doubles the battery capacity so that the tool can obtain a larger operating current, which satisfies both the power requirement of the power tool and the working protection current requirement of the battery pack. It also ensures the working ability of high-power electric tools.
本发明结构简单、 紧凑， 合理， 成本低， 使用本发明的大功率电动工具成 本得到有效控制， 并且减少了能源的浪费。  The structure of the invention is simple, compact, reasonable, and low in cost, and the cost of using the high-power electric tool of the present invention is effectively controlled, and waste of energy is reduced.

Claims

权 利 要 求 书 Claim
1、 一种用于电动工具的锂电池包接口座， 其特征是： 所述接口座 （3 ) 为 中空的盒体， 由固定在一起的上盖 （4) 与下盖 （6) 构成， 所述上盖 （4) 的上 表面设置有两个电池包安装槽 （7)， 每个所述电池包安装槽 （7) 内安装有一个 固定锂电池包 （2) 的电池夹 （5 )， 两个所述电池夹 （5 ) 串联或并联连接。 A lithium battery pack interface for a power tool, characterized in that: the interface seat (3) is a hollow box body, and is composed of an upper cover (4) and a lower cover (6) fixed together. The upper surface of the upper cover (4) is provided with two battery pack mounting slots (7), and each of the battery pack mounting slots (7) is provided with a battery clip (5) for fixing the lithium battery pack (2). Two of the battery clips (5) are connected in series or in parallel.
2、 按照权利要求 1所述的用于电动工具的锂电池包接口座， 其特征是： 所 述两个电池包安装槽 （7) 并列设置在所述上盖 （4) 上。  A lithium battery pack socket for a power tool according to claim 1, wherein: said two battery pack mounting grooves (7) are juxtaposed on said upper cover (4).
3、按照权利要求 1或 2所述的用于电动工具的锂电池包接口座，其特征是: 所述电池夹 （5 ) 位于所述上盖 （4) 与所述下盖 （6) 之间， 并且从所述电池包 安装槽 （7) 内露出所述上盖 （4)。  A lithium battery pack socket for a power tool according to claim 1 or 2, wherein: said battery clip (5) is located between said upper cover (4) and said lower cover (6) And the upper cover (4) is exposed from the battery pack mounting groove (7).
4、 按照权利要求 3所述的用于电动工具的锂电池包接口座， 其特征是： 所 述电池夹 （5 ) 由电池夹压板 （9) 固定在所述上盖 （4) 上。  A lithium battery pack socket for a power tool according to claim 3, wherein: said battery holder (5) is fixed to said upper cover (4) by a battery clamp plate (9).
5、 按照权利要求 4所述的用于电动工具的锂电池包接口座， 其特征是： 所 述电池夹压板 （9) 上幵有压板固定孔 （10)， 所述上盖 （4) 上设置有与所述压 板固定孔 （10) 相对应的压板固定柱 （15 )。  The lithium battery pack interface for a power tool according to claim 4, wherein: the battery clamping plate (9) has a plate fixing hole (10), and the upper cover (4) A platen fixing column (15) corresponding to the platen fixing hole (10) is provided.
6、 按照权利要求 1所述的用于电动工具的锂电池包接口座， 其特征是： 所 述上盖 （4) 上设置有销柱 （8 )， 所述下盖 （6) 上设置有销柱座 （12)， 所述销 柱 （8) 与所述销柱座 （12) 相配合。  6. The lithium battery pack socket for a power tool according to claim 1, wherein: the upper cover (4) is provided with a pin (8), and the lower cover (6) is provided with a pin holder (12), the pin (8) mating with the pin holder (12).
7、 按照权利要求 6所述的用于电动工具的锂电池包接口座， 其特征是： 所 述销柱 （8) 突出于所述上盖 （4) 与所述下盖 （6) 之间的结合面， 所述销柱座 7. The lithium battery pack socket for a power tool according to claim 6, wherein: said pin (8) protrudes between said upper cover (4) and said lower cover (6) Joint face, the pin seat
( 12) 的上表面低于所述上盖 （4) 与所述下盖 （6) 之间的结合面。 The upper surface of (12) is lower than the joint surface between the upper cover (4) and the lower cover (6).
8、 按照权利要求 1所述的用于电动工具的锂电池包接口座， 其特征是： 所 述下盖 （6) 的底部设置有电线孔 （11 )。  A lithium battery pack socket for a power tool according to claim 1, wherein: the bottom of said lower cover (6) is provided with a wire hole (11).
9、 按照权利要求 1所述的用于电动工具的锂电池包接口座， 其特征是： 所 述下盖 （6) 的底面上设置有多个定位柱 （13 ), 所述定位柱 （13 ) 将所述接口 座 （3 ) 定位在电动工具主体 （1 ) 上。  9. The lithium battery pack interface for a power tool according to claim 1, wherein: a plurality of positioning posts (13) are disposed on a bottom surface of the lower cover (6), and the positioning post (13) ) Position the connector holder (3) on the power tool body (1).
10、 按照权利要求 9所述的用于电动工具的锂电池包接口座， 其特征是- 所述定位柱 （13 ) 上开有轴向的螺钉孔。  10. A lithium battery pack socket for a power tool according to claim 9, wherein - said positioning post (13) is provided with an axial screw hole.
PCT/CN2012/000548 2012-03-21 2012-04-23 Lithium battery pack interface socket used for electric tool WO2013138955A1 (en)

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