CN104969408B

CN104969408B - Battery bag and electrical equipment

Info

Publication number: CN104969408B
Application number: CN201480007565.0A
Authority: CN
Inventors: 西河智雅; 高野信宏; 松野智
Original assignee: Hitachi Koki Co Ltd
Current assignee: Machine holding company
Priority date: 2013-03-21
Filing date: 2014-03-18
Publication date: 2018-03-30
Anticipated expiration: 2034-03-18
Also published as: JP6497566B2; JPWO2014148452A1; JP6284045B2; WO2014148452A1; JP2018078126A; CN104969408A

Abstract

The present invention provides a kind of battery bag and electrical equipment.The 1st convex strip portions (87) and the 2nd convex strip portions (82) are provided with battery bag (88), the battery bag (88) includes：Battery pack, be connected in series with multiple batteries form and battery capacity be setting more than；Controller, the voltage of each battery of battery pack is monitored, alarm signal is exported when the voltage of at least any one battery is dropped to below a reference value；And instrument joint face (89), S terminals (80) formed with the plus end (73) for being electrically connected with power tool body and negative terminal (74) and alarm signal of the output from controller, 1st convex strip portions (87) are used to cause the power tool body that can not be installed up to the output voltage that rated voltage is less than battery pack, and the 2nd convex strip portions (82) are used to make it that the power tool body for being not provided with the terminal for inputting the alarm signal from the output of S terminals can not be installed up to.The battery bag of the present invention be by can not to unfavorable electric tool supply electric power in a manner of formed.

Description

Battery bag and electrical equipment

Technical field

A kind of electrical equipment the present invention relates to battery bag and using battery bag as power supply.

Background technology

It is widely used battery bag as electrical equipments without electric wire such as the electric tools, lamp, fan of power supply.Battery Bao Zhong, generally interior to be provided with the battery pack that multiple batteries are formed by connecting, as battery variety, main flow is lithium ion battery. Using in the battery bag of lithium ion battery, in order to monitor battery temperature, electric current and form battery pack each battery voltage, The monitor control mechanisms such as protection integrated circuit (Integrated Circuit, IC) or microcomputer are set in palpus.The reason for this is that work as When the voltage of the short circuit of any one battery or battery reaches the threshold value as over-discharge state, it can export and warn from monitor control mechanism The number of notifying, and respond the alarm signal and stop to use battery bag.

In electrical appliance safety law, it is specified that must using each battery capacity more than 400AH/L lithium ion battery as Object and the monitor control mechanism is set.For electric tool, main flow is battery (the diameter 18mm × height that size is 18650 65mm), if being converted with its volume, lithium ion battery of every 1 battery more than 1.83Ah turns into electrical appliance safety law Limit object.In now widely used 3Ah battery pack, two 1.5Ah battery is connected in parallel, and itself and non-electrical The limitation object of articles for use safety law, but 2.0Ah battery is developed recently, in the market occurs two this batteries simultaneously Join the 4Ah batteries being formed by connecting.The 2.0Ah batteries have exceeded the benchmark limited in electrical appliance safety law, therefore, it is necessary to full The two following conditions limited in sufficient electrical appliance safety law.

(1) it must be designed as that temperature will not occur or the temperature of the management exception of electric current rises or electricity is set outside battery pack Restriction means.

(2) assembling of the single battery to battery pack

, must be comprising the equal battery of capacity in each battery block, and do not cause polarity inversion.(that is, it must not cause overdischarge shape State.)

For the limitation in accordance with the electrical appliance safety law, in using the battery bag provided with the monitor control mechanism as The electrical equipment of premise is to form as follows：Field-effect crystalline substance is provided with being flow to from battery bag on the current path of electrical equipment The switch elements such as body pipe (Field Effect Transistor, FET), and the alarm signal to being exported from monitor control mechanism is carried out Respond and be set to switch element to disconnect (off), force to terminate to use battery bag (for example, referring to patent document 1).

Prior art literature

Patent document

Patent document 1：Japanese Patent Laid-Open 2008-62343 publications

Invent problem to be solved

It is not interior as the battery bag of the battery of the capacity using the limitation object for having not electrical appliance safety law, some Provided with monitor control mechanism；To use in electrical equipment body of the battery bag as premise, also it is not provided with being used to cut off electric current road Switch element.That is, battery bag and electrical equipment body be configured to only by respective plus end each other, negative terminal is connected to each other. Therefore, if by restricted, the interior battery bag installing provided with battery and monitor control mechanism according to electrical appliance safety law so far Kind electrical equipment body, though then electrical equipment is driven, it can not be transferred to electrically from the alarm signal of monitor control mechanism output Apparatus body side, so as to which monitor control mechanism can not realize function.Therefore, the limitation of electrical appliance safety law can not as a result be observed.

If being described in detail, it is provided with inside in the high-capacity battery bag of monitor control mechanism, except including the anode from battery pack Beyond two terminals that son is drawn with negative terminal, in addition to for exporting the terminal of the output signal from monitor control mechanism.It is another Aspect, this side of electrical equipment is the two-terminal structure of the plus end and negative terminal for being connected to battery bag, therefore, it is impossible to connect Receive the output signal from the interior monitor control mechanism located at battery bag.Moreover, this side of electrical equipment is for from monitor control mechanism Output signal turns into noninductive structure, therefore, is also not provided for cutting off the shut-off mechanisms such as the FET of current path.

The content of the invention

The present invention be in view of the situation and complete, its object is to cause can not use be not suitable for electrical equipment body Battery bag.

The technological means solved the problems, such as

In order to realize the purpose, the described battery bag of the first invention is if electrical equipment body is connected to electrical equipment Body exports the 1st rated voltage, and the battery bag is characterised by including：1st connection limiting mechanism, the 1st connection limiting mechanism Allow to be connected to the 1st electricity corresponding to the 1st rated voltage and provided with cut-out from the power shut-off mechanism of the electric power of battery bag supply Gas apparatus body, and the 1st connection limiting mechanism is forbidden being connected to corresponding to the 1st rated voltage and is not provided with power cut machine 2nd electrical equipment body of structure.

According to the battery bag formed in this way, battery bag is connected only to the electrical equipment provided with power shut-off mechanism, The damage of battery bag when can suppress abnormal.According to the described battery bag of the first invention, the spy of the described battery bag of the second invention Sign is：Including the 2nd connection limiting mechanism, the 2nd connection limiting mechanism allows to be connected to and the 1st rated voltage the corresponding 1st Electrical equipment and the 2nd electrical equipment, and the 2nd connection limiting mechanism forbid being connected to be less than the 1st rated voltage it is the 2nd specified 3rd electrical equipment body corresponding to voltage.Battery bag can be prevented to be connected to the 3rd electrical equipment only corresponding with small rated voltage And the situation for damaging the 3rd electrical equipment.

According to the described battery bag of the first invention or the second invention, the described battery bag of the 3rd invention is characterised by：Structure Turn into, the 1st identification mechanism for being only located at the 2nd electrical equipment, refused by the 1st connection limiting mechanism to forbid connecting In the 2nd electrical equipment.

According to the battery bag any one of the first invention to the 3rd invention, the feature of the described battery bag of the 4th invention It is：Be configured to, for only be located at the 3rd electrical equipment the 2nd identification mechanism, by the 2nd connection limiting mechanism refused and Forbid being connected to the 3rd electrical equipment.

According to the battery bag any one of the first invention to the 4th invention, the feature of the described battery bag of the 5th invention It is：In order to which battery bag is being connected to this by the 3rd identification mechanism of whole electrical equipments in the 1st to the 3rd electrical equipment It is not rejected, and is configured to during a little electrical equipments, the 1st connection limiting mechanism is connected limiting mechanism with the 2nd and passes through the 3rd identification mechanism Region beyond the region passed through.

It may be configured as, when increasing the battery bag of new type later, by being set newly to the battery bag of new type 3rd connection limiting mechanism, so as to make the battery bag of new type can not be connected to existing 1st electrical equipment to the 3rd electric Equipment.

According to the battery bag any one of the first invention to the 5th invention, the feature of the described battery bag of the 6th invention It is：Be configured to, by make equivalent to the convex portion of the 1st connection limiting mechanism and the 2nd connection limiting mechanism with equivalent to the 1st to the The protrusions contact of 3 identification mechanisms and refused, so as to forbid being connected to electrical equipment.

Power shut-off mechanism located at the electrical equipment the 7th invention Suo Shu is characterised by including：Abnormal signal input Son, have from the battery bag input any one of the first invention to the 6th invention for circulating a notice of abnormal abnormal signal；And open Shutting mechanism, according to the abnormal signal of input to abnormal signal input terminal, cut off the power supply from battery bag.

The described battery bag of 8th invention is characterised by including：Battery pack, it is connected in series with multiple batteries and forms, and Battery capacity is more than setting；Cell voltage monitor control mechanism, monitor the voltage of each battery of battery pack, when at least any one Alarm signal is exported when the voltage of battery is dropped to below a reference value；Apparatus connecting unit, formed with for electrical equipment sheet Plus end, negative terminal and the alarm signal for exporting the alarm signal from cell voltage monitor control mechanism of the battery pack of body electrical connection Lead-out terminal；And be impermissible for power supply mechanism, by rated voltage less than battery pack output voltage electrical equipment body, And it is not provided with any in the electrical equipment body of the terminal for inputting the alarm signal from the output of alarm signal lead-out terminal It is individual to be used as unfavorable electrical equipment body, and be configured to not supply unfavorable electrical equipment body by battery pack Electric power.

In existing battery bag, and there is the battery bag provided with the cell voltage monitor control mechanism and is not provided with the battery The battery bag of voltage monitoring mechanism, but because of also legal requirement, so, just interior provided with battery capacity is more than setting battery For the battery bag of group, cell voltage monitor control mechanism is set, monitors the voltage of each battery of battery pack, when at least any one is electric When Chi Xin voltage is dropped to below a reference value alarm signal is exported from the cell voltage monitor control mechanism.Here, so-called setting Battery capacity above refers to, more than the capacity for the battery capacity that can be not provided with cell voltage monitor control mechanism.

When by the battery bag be installed up to rated voltage less than battery pack output voltage power tool body or do not set Have for inputting the power tool body of the terminal of the alarm signal from the output of alarm signal lead-out terminal and drive electric tool When, cell voltage monitor control mechanism can not realize its function.Therefore, it is configured to, can not be from battery pack to the electrical equipment body Supply electric power.

According to the described battery bag of the 8th invention, the described battery bag of the 9th invention is characterised by：It is impermissible for electric power confession It is configured to mechanism, unfavorable electrical equipment body can not be connected to apparatus connecting unit.

The battery bag for making the 8th invention described can not be connected to unfavorable power tool body.

According to the described battery bag of the 9th invention, the described battery bag of the tenth invention is characterised by：It is impermissible for electric power confession The 1st convex strip portions for including being set up in parallel with any one terminal in plus end, negative terminal and alarm signal lead-out terminal to mechanism And the 2nd convex strip portions, and can not be connected to unfavorable power tool body of the rated voltage less than the output voltage of battery pack The mode of apparatus connecting unit limits the shape of the 1st convex strip portions, to be not provided with for inputting from the output of alarm signal lead-out terminal The mode that unfavorable electrical equipment body of the terminal of alarm signal can not be connected to apparatus connecting unit limits the 2nd convex strip portions Shape.

It can not be connected by the shape for the aid attachment portion for making battery bag with the battery bag of unfavorable electrical equipment body The shape engaging of socket part point, to make battery bag can not be connected to unfavorable electrical equipment body.

The effect of invention

So that the battery bag of the present invention, which can not be installed up to, can not realize cell voltage monitoring function possessed by battery bag Specific electrical equipment body, therefore in can be by the electrical equipment of the state of the battery Packet driven of the present invention, it is possible to provide The big battery bag of limitation and battery capacity in accordance with electrical appliance safety law and electrical equipment.

Brief description of the drawings

Fig. 1 is to represent power tool body and the explanation figure that can battery bag combine.

Fig. 2 is represented by the battery packages with the voltage monitoring function for each battery located at the corresponding type electricity of monitoring The outline figure of the state of power driven tools body.

Fig. 3 is to represent that the battery bag with the voltage monitoring function for each battery is installed up into monitoring non-corresponding type The outline figure of the process of power tool body.

Fig. 4 is represented by the battery packages without the voltage monitoring function for each battery located at the corresponding type of monitoring The outline figure of the state of power tool body.

Fig. 5 is represented by the battery packages without the voltage monitoring function for each battery located at monitoring non-corresponding The outline figure of the state of type power tool body.

Fig. 6 is the stereogram for the battery bag joint face for representing the corresponding type power tool body of 18V monitoring.

Fig. 7 is the stereogram for the battery bag joint face for representing 18V monitoring non-corresponding type power tool bodies.

Fig. 8 is the stereogram for the battery bag joint face for representing the corresponding type power tool body of 14.4V monitoring.

Fig. 9 is the stereogram for the battery bag joint face for representing 14.4V monitoring non-corresponding type power tool bodies.

Figure 10 is the solid for the outward appearance for representing the 14.4V output two-terminal structure battery bags in embodiments of the present invention Figure.

Figure 11 is the solid for the outward appearance for representing the 14.4V three terminal structure battery bags of output in embodiments of the present invention Figure.

Figure 12 is the stereogram for the outward appearance for representing the 18V output two-terminal structure battery bags in embodiments of the present invention.

Figure 13 is the stereogram for the outward appearance for representing the 18V three terminal structure battery bags of output in embodiments of the present invention.

Figure 14 (a) is the figure of the shape of the notch part for the convex portion and battery bag for illustrating power tool body to (h).

Figure 15 is to represent the explanation figure (its 1) that can power tool body and battery bag be installed.

Figure 16 is to represent the explanation figure (its 2) that can power tool body and battery bag be installed.

Figure 17 is to represent the explanation figure (its 3) that can power tool body and battery bag be installed.

Figure 18 is to represent the explanation figure (its 4) that can power tool body and battery bag be installed.

Figure 19 is to represent the explanation figure (its 5) that can power tool body and battery bag be installed.

Figure 20 is to represent the explanation figure (its 6) that can power tool body and battery bag be installed.

Figure 21 is to represent the explanation figure (its 7) that can power tool body and battery bag be installed.

Figure 22 is to represent the explanation figure (its 8) that can power tool body and battery bag be installed.

The explanation of symbol

1、50、57、60、63：Power tool body

2、70、78、84、88：Battery bag

3：Battery pack

10：Trigger switch

20：Controller

30：Controller

40：Motor

51：Housing

52：Battery bag joint face

53：Plus end

54：Negative terminal

55：S terminals

56、59、62、65：Convex portion

58、61、64：Battery bag joint face

59a、62a、65a：Base portion

59c、65c：Housing side extension

62b、65b：Terminals side extension

71：Housing

72、79、85、89：Instrument joint face

73：Plus end

74：Negative terminal

75：Charging terminal

76、81、86、90：Notch part

77、87：1st convex strip portions

80：S terminals

82：2nd convex strip portions

83：Groove

Embodiment

Hereinafter, embodiments of the present invention are illustrated referring to the drawings.In the following description, one as electrical equipment Example, using electric tool.

The condition of the battery bag of the present invention is that the battery capacity for the battery pack that multiple batteries are connected in series is regulation More than value, in example described below, the setting of the battery capacity is set to 4Ah.Battery capacity is more than 4Ah Gao Rong It is high to measure the energy density of battery bag, as described above, needing to set the monitor control mechanisms such as protection IC in battery bag.Hereinafter, as low appearance Measure one of battery bag, use battery bag of the capacity for 3Ah, moreover, one as high-capacity battery bag, use capacity for 4Ah battery bag.Moreover, not interior in making 3Ah low-capacity batteries bag set monitor control mechanism.On the other hand, in high-capacity battery bag In in be provided with monitor control mechanism, and be provided with terminal, the terminal is for the output signal from monitor control mechanism to be exported to as electric The power tool body of one of equipment.Therefore, high-capacity battery is bundled into not only to have the anode for being used for exporting cell voltage Three terminal knots of son, negative terminal and the terminal (hereinafter referred to as " S terminals ") with output signal of the output from monitor control mechanism Structure.On the other hand, low-capacity batteries described herein as are bundled into only to have the two-terminal structure of plus end and negative terminal.

Moreover, battery bag can also classify according to the cell number for the battery being connected in series, in the following description, use It is configured to being connected in series four battery blocks of two cell parallel connections and connecting two cell parallels five What battery block was connected in series.Average voltage before overdischarge is after charging, i.e. 3.6V by lithium ion battery, therefore, 14.4V output voltage can be obtained by the battery bag of previous structure, 18V output electricity can be obtained by the battery bag of latter arrangement Pressure.14.4V exports battery bag and 18V outputs battery bag two-terminal structure type and three terminal structure types respectively.Therefore, with Under explanation in, three terminal structure batteries are exported with four kinds of battery bags, i.e. 14.4V outputs two-terminal structure battery bag, 14.4V Bag, 18V output two-terminal structure battery bags and 18V are illustrated exemplified by exporting three terminal structure battery bags.

It is equiped with the power tool body of battery bag and can be roughly divided into the type that rated voltage is 14.4V and is with rated voltage 18V type, and can each be divided into can type corresponding with the alarm signal exported from the interior monitor control mechanism located at battery bag and Type that can not be corresponding.If being described in detail, can electric tool sheet corresponding with the alarm signal from monitor control mechanism In body, the switch elements such as FET are inserted with the discharge path in power tool body.For example, be configured to following structure is Can power tool body corresponding with alarm signal, and as be connected to battery bag plus end and negative terminal terminal, And three terminal structures of the terminal for inputting alarm signal, if the structure is because cell voltage reaches as over-discharge state Threshold value and out of battery bag that installed monitor control mechanism output alarm signal, then respond the alarm signal and make the switch Element disconnects.Here, the rated voltage of so-called electrical equipment refers to, also will not be to electricity even if lasting input to electrical equipment body Gas apparatus body applies the voltage of excessive load；The rated voltage of so-called battery bag refers to that battery bag can continue the electricity of output Pressure.For example, when being expressed as 14.4V in the advertisement of electric tool or operational manual, usually with to rated voltage 14.4V's Power tool body is equipped with the state of rated voltage 14.4V battery bag and is used as merchandise sales.To can so it be expressed in wide Voltage in announcement or operational manual is considered as the rated voltage of electrical equipment body or battery bag.

On the contrary, without the terminal for inputting alarm signal, for alarm signal for noninductive structure, be in other words Be configured to be not provided with the FET is power tool body not corresponding with alarm signal.In the following description, using four kinds Power tool body, i.e. rated voltage is 14.4V and can (14.4V monitoring is corresponding with power tool body corresponding to alarm signal Type power tool body), rated voltage is 14.4V and (14.4V monitoring is not non-for corresponding with alarm signal power tool body Corresponding type power tool body), rated voltage be 18V and can (18V monitoring is corresponding with power tool body corresponding to alarm signal Type power tool body), rated voltage be 18V and power tool body not corresponding with alert Reported signals (18V monitors non-corresponding Type power tool body).

According to four kinds of described battery bags and four kinds of power tool bodies, there can be 16 kinds of combinations.Fig. 1 is to represent electronic work The explanation figure that can tool body and battery bag combine.In Fig. 1, upside is equivalent to power tool body side, from corresponding to (a) from left to right The corresponding type power tool body of 14.4V monitoring, (b) 14.4V monitoring non-corresponding types power tool body, the corresponding type of (c) 18V monitoring Power tool body, (d) 18V monitoring non-corresponding type power tool bodies.Moreover, Fig. 1 downside is equivalent to battery bag, from from left to right Three terminal structure battery bags, (g) 18V outputs two are exported corresponding to (e) 14.4V output two-terminal structure batteries bag, (f) 14.4V Terminal structure battery bag, (h) 18V export three terminal structure battery bags.Moreover, in Fig. 1, each power tool body and battery bag Combination is represented with solid line and dotted line.Here, solid line represents can be combined, and dotted line represents not can be combined.

As shown in figure 1, it must forbid 14.4V exporting three terminal structure battery bags and the 14.4V monitoring electronic works of non-corresponding type (dotted line [12]) are applied in combination in tool body, equally, must forbid 18V exporting three terminal structure battery bags and 18V monitoring non-corresponding Type power tool body is applied in combination (dotted line [16]).Although moreover, the battery bag of 14.4V output systems, which is used in, to be had Be not in problem (solid line (4), (5), (6)) when in the power tool body of 18V rated voltage, but must also cause can not phase Instead the battery bag of 18V output systems is used in the power tool body of the rated voltage with 14.4V (dotted line [10], [11]、[14]、[15])。

In example described below, when the combination of battery bag and power tool body has adaptability, with can be by battery The mode that bag is installed up to power tool body forms the instrument joint face of battery bag, and can not be installed up to the battery bag not The mode of suitable power tool body forms the instrument joint face of battery bag.In the example, if battery bag can be installed up into electricity Power driven tools body, then it can rightly use electric tool.

Fig. 2 is the state for representing the battery bag 2 for being equiped with three terminal structures type power tool body 1 corresponding with monitoring Figure.It is interior to be provided with motor 40 and controller 20 in power tool body 1, it is being passed through on the electric current road of electric current, is being inserted with to motor 40 The switch elements such as FET4.In battery bag joint face, plus end and negative terminal are not simply formed with, but also formed with for inputting police The S terminals for the number of notifying.The S terminals of the side of tool body 1 are when at least one cell voltage reaches the threshold value as over-discharge state When for input from battery bag 2 export alarm signal terminal.In power tool body 1, provided with for driving electric tool Trigger switch 10.

It is interior provided with battery pack 3 and controller 30 as cell voltage monitor control mechanism in battery bag 2, the battery pack 3 be by Multiple batteries are connected in series, the voltage of each battery of the controller 30 monitoring battery pack 3 and ought at least any one battery Alarm signal is exported when the voltage of core is dropped to below a reference value.In the state of power tool body 1 is equiped with battery bag 2, Each plus end each other, negative terminal be electrically connected to each other, and the S terminals of battery bag 2 also electrically connect with the S terminals of the side of tool body 1. The S terminals of the side of tool body 1 are connected to controller 20.As controller 20, when the S terminals input from battery bag 2 has alarm signal Number when, disconnect FET4 and open electric current road, forced termination uses battery bag 2.

Power tool body 1 shown in Fig. 2 and battery bag 2 are combined as the corresponding type electric tool sheet of 14.4V monitoring When body and 14.4V export three terminal structure battery bags and the corresponding type power tool body of 18V monitoring and 18V three terminal knots of output During structure battery bag, without make it that installed battery bag can not be used.However, with regard to output voltage be 18V battery bag with it is specified It for combination of the voltage for 14.4V power tool body, must make it that the battery bag can not be used.

Fig. 3 is to represent to make the battery bag 2 of three terminal structures to be installed up to monitoring non-corresponding type electric tool when sliding The figure of body 1-a process.Monitor in non-corresponding type power tool body 1-a, be not provided for being connected to the S ends of battery bag 2 The terminal of son, moreover, being also not provided with FET in current path.Therefore, even if being judged as the battery pack 3 of battery bag side at least Any one battery reaches the state before overdischarge, also can not receive the judged result and forced termination uses battery bag.Therefore, In the electric tool of the combination, it must battery bag 2 can not be installed up into power tool body 1-a.

Expression is equiped with the state of the battery bag 2-a type power tool bodies 1 corresponding with monitoring of two-terminal structure in Fig. 4. It is same with the power tool body 1 shown in Fig. 2, it is internally provided with controller 20 and conducting is controlled by controller 20, disconnects and inserts The FET4 being located on current path.If the rated voltage of power tool body 1 is 18V, installing uses the battery of 14.4V outputs Bag or the battery bag of 18V outputs will not produce problem., must however, if the rated voltage of power tool body 1 is 14.4V So that the battery bag of 18V outputs can not be installed as shown in Figure 4.

The battery bag 2-a for being equiped with two-terminal structure and the shape for monitoring non-corresponding type power tool body 1-a are represented in Fig. 5 State.It is same with the power tool body 1 shown in Fig. 2, it is internally provided with controller 20 and conducting is controlled by controller 20, disconnected And it is plugged in the FET4 on current path.Two-terminal structure battery bag 2-a output voltage is 14.4V or 18V, but if 18V It then can only be installed on the power tool body that rated voltage is 18V and use, and the electronic work for rated voltage for 14.4V It tool, must make it that 18V output two-terminal structure battery bags can not be installed as shown in Figure 5.

Then, reference picture 6 is carried out in more detail to Fig. 9 for the structure of the battery bag joint face of power tool body It is bright.

Fig. 6 is the stereogram for the battery bag joint face for representing the corresponding type power tool body of 18V monitoring.In Fig. 6 represent from The state of the corresponding type power tool body 50 of 18V monitoring seen by the direction of bottom surface.

In the corresponding type power tool body 50 of 18V monitoring, it is used for and battery as shown in fig. 6, having in the bottom surface of housing 51 Wrap the battery bag joint face 52 of connection.In battery bag joint face 52, as shown in fig. 6, provided with the company for being electrically connected with battery bag Connecting terminal is plus end 53, negative terminal 54 and S terminals 55.In battery bag joint face 52, and then it is equipped with convex portion 56.The phase of convex portion 56 When the 3rd identification mechanism in the present invention and convex portion, and as shown in fig. 6, formed with defined width in plus end 53 and housing 51 Between assigned position on.

Hereinafter, on the basis of 18V monitors corresponding type power tool body 50 (Fig. 6), enter for other power tool bodies Row explanation.Now, on the identical structure of type power tool body 50 corresponding with 18V monitoring, identical symbol is marked, and omit Their detailed description.

Fig. 7 is the stereogram for the battery bag joint face for representing 18V monitoring non-corresponding type power tool bodies.Monitored in 18V The battery bag joint face 58 of non-corresponding type power tool body 57, as shown in fig. 7, being provided with plus end 53 and negative terminal 54.18V is supervised FET is not provided with control non-corresponding type power tool body 57, S terminals 55 are not provided with battery bag joint face 58.

In battery bag joint face 58, between plus end 53 and housing 51 and then convex portion 59 is equipped with.With being formed at 18V prisons The convex portion 56 (Fig. 6) of the corresponding type power tool body 50 of control is compared, and is extended as shown in fig. 7, the convex portion 59 has to the side of housing 51 Shape.

Fig. 8 is the stereogram for the battery bag joint face for representing the corresponding type power tool body of 14.4V monitoring.Supervised in 14.4V The battery bag joint face 61 of the corresponding type power tool body 60 of control, as shown in figure 8, being provided with plus end 53, negative terminal 54 and S terminals 55.Moreover, in battery bag joint face 61, between plus end 53 and housing 51 and then convex portion 62 is equipped with.With being formed at 18V prisons The convex portion 56 (Fig. 6) of the corresponding type power tool body 50 of control is compared, and is prolonged as shown in figure 8, the convex portion 62 has to the side of plus end 53 The shape stretched.

Fig. 9 is the stereogram for the battery bag joint face for representing 14.4V monitoring non-corresponding type power tool bodies.Such as Fig. 9 institutes Show, the battery bag joint face 64 of 14.4V monitoring non-corresponding types power tool body 63 has plus end 53 and negative terminal 54.With Equally, 14.4V monitoring non-corresponding types power tool body 63 is not also set 18V monitoring non-corresponding type power tool bodies 57 (Fig. 7) There is FET, S terminals 55 are not provided with battery bag joint face 64.In battery bag joint face 64, enter between plus end 53 and housing 51 And it is equipped with convex portion 65.Compared with being formed at the convex portion 56 (Fig. 6) of the corresponding type power tool body 50 of 18V monitoring, such as Fig. 9 institutes Show, the convex portion 65 has the shape of the either side extension into the side of housing 51 and the side of plus end 53.

As described above, in the battery bag joint face of power tool body, according to the rated voltage of the power tool body And the presence or absence of S terminals of the power tool body and formed with variform convex portion.

Then, reference picture 10 illustrates to Figure 13 to the structure of battery bag.

Figure 10 is the solid for the outward appearance for representing the 14.4V output two-terminal structure battery bags in embodiments of the present invention Figure.In 14.4V output two-terminal structure batteries bag 70, in the inside of housing 71, contain by multiple battery strings (not shown) Join the battery pack being formed by connecting and form.Moreover, in the upper surface of housing 71, as shown in Figure 10, formed with for electronic work Has the instrument joint face 72 of body connection.

Instrument joint face 72 and as shown in Figure 10, has and is used for and electric tool equivalent to the apparatus connecting unit of the present invention The connection terminal of body electrical connection is plus end 73, negative terminal 74 and charging terminal 75.Plus end 73 is to be connected to battery pack Positive side terminal, when battery bag is installed up into power tool body, the plus end 73 is for being arranged at power tool body The plus end 53 of battery bag joint face inserts, so as to realize electrical connection.Negative terminal 74 is the terminal for the minus side for being connected to battery pack, When battery bag is installed up into power tool body, the negative terminal 74 supplies to be arranged at the battery bag joint face of power tool body Negative terminal 54 inserts, so as to realize electrical connection.Charging terminal 75 makes when being and the battery pack for being contained in battery bag being charged Terminal.Moreover, when battery bag is installed up into monitoring correspondingly type power tool body, charging terminal 75 is for being arranged at this The S terminals 55 of the battery bag joint face of power tool body insert.

In instrument joint face 72, as shown in Figure 10, between plus end 73 and housing 71 and then formed with notch part 76.Lack Oral area 76 is impermissible for power supply mechanism equivalent to the present invention's.As shown in Figure 10, two-terminal structure battery bag is exported in 14.4V 70 notch part 76 is provided with the 1st convex strip portions 77.1st convex strip portions 77 are roughly parallel to plus end 73, and are formed as before being less than breach Instrument joint face 72.

Hereinafter, on the basis of 14.4V output two-terminal structure battery bags 70 (Figure 10), said for other battery bags It is bright.Now, identical symbol is marked for exporting the identical structure of two-terminal structure battery bag 70 with 14.4V, and omits them Detailed description.

Figure 11 is the stereogram for the outward appearance for representing the terminal structure battery bags of 14.4V tri- in embodiments of the present invention. The difference that 14.4V exports three terminal structure battery bag 78 and 14.4V output two-terminal structure battery bags 70 (Figure 10) is： S terminals 80 are provided with instead of charging terminal 75 and are provided with the 2nd convex strip portions 82 in notch part 81.2nd convex strip portions 82 are equivalent to this 1st connection limiting mechanism of invention and convex portion.

As shown in figure 11, the instrument joint face 79 that 14.4V exports three terminal structure battery bags 78 has plus end 73, negative terminal 74 and S of son terminals 80.S terminals 80 are to be used to export to come from cell voltage equivalent to alarm signal lead-out terminal of the invention The terminal of the alarm signal of monitor control mechanism (not shown).When battery bag is installed up into monitoring correspondingly type power tool body, S ends The S terminals 55 of battery bag joint face of the son 80 for being arranged at the power tool body insert, so as to realize electrical connection.Moreover, work as When being charged to the battery pack for being contained in battery bag, S terminals 80 also serve as charging terminal.

Moreover, as shown in figure 11, the notch part of the instrument joint face 79 of three terminal structure battery bags 78 is exported in 14.4V 81, clip groove 83 and substantially in parallel formed with the 1st convex strip portions 77 and the 2nd convex strip portions 82.Here, the 1st convex strip portions 77 have Have and the 1st convex strip portions 77 (Figure 10) identical shape of two-terminal structure battery bag 70 is exported located at 14.4V, and be formed at identical Position.

Groove 83 is formed between the 1st convex strip portions 77 and the 2nd convex strip portions 82 with defined width.Here, so-called regulation Width refer to, the convex portion 56 (Fig. 6) of the battery bag joint face 52 of type power tool body 50 corresponding with being formed at 18V monitoring The roughly the same size of width.Work as moreover, groove 83 is formed at by the type power tool body corresponding with 18V monitoring of battery bag 78 The position that convex portion 56 is inserted during 50 connection.

As shown in figure 11, the 2nd convex strip portions 82 are formed between the 1st convex strip portions 77 and housing 71 and phase of the 1st convex strip portions 77 With the instrument joint face 79 before breach it is than the eminence above notch part 81 and as far as possible mutually level position.

Figure 12 is the stereogram for the outward appearance for representing the 18V output two-terminal structure battery bags in embodiments of the present invention. In 18V output two-terminal structure batteries bag 84, exported located at the shape of the 1st convex strip portions 87 of notch part 86 and Figure 10 14.4V Difference in two-terminal structure battery bag 70.1st convex strip portions 87 are equivalent to the 2nd connection limiting mechanism of the present invention and convex portion.

As shown in figure 12, the instrument joint face 85 that 18V exports two-terminal structure battery bag 84 has plus end 73, negative terminal 74 and charging terminal 75.Moreover, as shown in figure 12, the instrument joint face 85 of two-terminal structure battery bag 84 is exported in 18V Notch part 86 is provided with the 1st convex strip portions 87.1st convex strip portions 87 are formed at exporting two-terminal structure battery bag 70 located at 14.4V (Figure 10) the identical position of the 1st convex strip portions 77 and positioned at the height with the 1st convex strip portions 77 compared with above notch part 86 It is identical height to locate, try one's best with the instrument joint face 85 before breach.

Figure 13 is the stereogram for the outward appearance for representing the 18V three terminal structure battery bags of output in embodiments of the present invention. The difference that 18V exports three terminal structure battery bag 88 and Figure 10 14.4V output two-terminal structure batteries bag 70 is：Generation For charging terminal 75 be provided with S terminals 80, located at notch part 90 the 1st convex strip portions 87 shape and the 2nd convex strip portions 82 be located at Notch part 90.

As shown in figure 13, the instrument joint face 89 that 18V exports three terminal structure battery bags 88 has plus end 73, negative terminal 74 and S terminals 80.Moreover, as shown in figure 13, the notch part of the instrument joint face 89 of three terminal structure battery bags 88 is exported in 18V 90, clip groove 83 and substantially in parallel formed with the 1st convex strip portions 87 and the 2nd convex strip portions 82.Groove 83 is wide with identical Degree is formed in (Figure 11) identical of groove 83 position of the notch part 81 with exporting three terminal structure battery bags 78 located at 14.4V Put.Moreover, the 1st convex strip portions 87 and the 2nd convex strip portions 82 are formed as high with the identical of instrument joint face 89 before breach as far as possible respectively Degree.The shape of 1st convex strip portions 87 and position and the 1st convex strip portions 87 of the 18V output two-terminal structure batteries bag 84 located at Figure 12 It is identical, the 1st raised line of the shape of the 2nd convex strip portions 82 and position with exporting three terminal structure battery bags 78 located at Figure 11 14.4V Portion 77 is identical.

As described above, the present embodiment battery bag instrument joint face, according to the battery for being contained in the battery bag Output voltage and the presence or absence of S terminals, and be provided with the 1st convex strip portions and the 2nd convex strip portions.

Then, on power tool body convex portion shape and the 1st convex strip portions of battery bag and the shape of the 2nd convex strip portions Shape, (a) to (h) of reference picture 14 are described in detail.Figure 14 (a) to (h) be to the convex portion of power tool body with The figure that the shape of the notch part of battery bag illustrates.

The shape of the convex portion of the battery bag joint face located at power tool body is represented in Figure 14 (a) to Figure 14 (d). The shape of convex portion 56 corresponding to type power tool body 50 (Fig. 6) corresponding with 18V monitoring, Figure 14 (b) are represented in Figure 14 (a) The middle shape for representing convex portion 59 corresponding with 18V monitoring non-corresponding type power tool bodies 57 (Fig. 7).Moreover, in Figure 14 (c) Represent the shape of convex portion 62 corresponding to corresponding with 14.4V monitoring type power tool body 60 (Fig. 8), Figure 14 (d) middle expression and The shape of convex portion 65 corresponding to 14.4V monitoring non-corresponding type power tool bodies 63 (Fig. 9).

In addition, Figure 14 (a), into Figure 14 (d), left side is equivalent to the side of plus end 53 of power tool body, right side phase When in the side of housing 51.

As shown in Figure 14 (b), located at the convex portion 59 of 18V monitoring non-corresponding type power tool body 57 include with located at 18V monitoring corresponds to base portion 59a corresponding to the convex portion 56 (Figure 14 (a)) of type power tool body 50 and extended to the side of housing 51 Housing side extension 59c.Base portion 59a is suitable equivalent to the 3rd identification mechanism and convex portion, housing side extension 59c of the present invention The 1st identification mechanism and convex portion in the present invention.

As shown in Figure 14 (c), located at 14.4V monitor corresponding type power tool body 60 convex portion 62 include with located at 18V monitoring corresponds to base portion 62a corresponding to the convex portion 56 (Figure 14 (a)) of type power tool body 50 and prolonged to the side of plus end 53 The terminals side extension 62b stretched.Base portion 62a is equivalent to the 3rd identification mechanism of the present invention, and terminals side extension 62b is equivalent to this 2nd identification mechanism of invention.

Moreover, as shown in Figure 14 (d), include located at the convex portion 65 of 14.4V monitoring non-corresponding types power tool body 63 With located at base portion 65a corresponding to the convex portion 56 (Figure 14 (a)) of the corresponding type power tool body 50 of 18V monitoring, to plus end 53 The terminals side extension 65b of the side extension and housing side extension 65c extended to the side of housing 51.Base portion 65a is equivalent to the present invention The 3rd identification mechanism and convex portion.Moreover, 2nd identification mechanisms of the terminals side extension 65b equivalent to the present invention and convex portion, housing 1st identification mechanisms of the side extension 65c equivalent to the present invention and convex portion.

As shown in Figure 14 (a) to Figure 14 (d), in the low power tool body for 14.4V of rated voltage, provided with to just The convex portion (Figure 14 (c), Figure 14 (d)) of the shape of the side of terminal 53 extension, and in the electronic work of monitoring non-corresponding type without FET etc. Have body, the convex portion (Figure 14 (b), Figure 14 (d)) provided with the shape extended to the side of housing 51.

Moreover, Figure 14 (e) represents that the be located at the notch part of the instrument joint face of battery bag the 1st is convex into Figure 14 (h) Article portion and the shape of the 2nd convex strip portions.Figure 14 (e) corresponds to 14.4V output two-terminal structure batteries bag 70, and Figure 14 (f) is right Three terminal structure battery bags 78 should be exported in 14.4V.Moreover, Figure 14 (g) corresponds to 18V output two-terminal structure battery bags 84, Figure 14 (h) corresponds to 18V and exports three terminal structure battery bags 88.

In addition, Figure 14 (e), into Figure 14 (h), left side is equivalent to the side of plus end 73 of battery bag, and right side is equivalent to shell The side of body 71.That is, square shown in left side corresponds to the 1st convex strip portions, and square shown in right side corresponds to the 2nd convex strip portions.Moreover, side In the diagram of shape, on the basis of the height of instrument joint face, when in notch part formed with height and instrument joint face identical the 1st During convex strip portions, represented on the left of figure square.That is, only when battery bag has 1 high convex strip portions, represented in the left side of figure Go out square, and when with 1 low convex strip portions, do not represented on the left of figure square.Moreover, when notch part has height During with instrument joint face 2 convex strip portions of identical, represented on the right side of figure square.

For example, the notch part 76 of the 14.4V output two-terminal structure batteries bag 70 shown in (e) in Figure 14, is provided only with low In the 1st convex strip portions 77 of instrument joint face 72.On the other hand, the 18V shown in (h) in Figure 14 exports three terminal structure battery bags 88 notch part 90, provided with height and the convex strip portions 87 of 89 identical of instrument joint face the 1st and the 2nd convex strip portions 82.

As shown in Figure 14 (e) to Figure 14 (h), it is provided with the notch part of the high 18V of output voltage battery bag high 1st convex strip portions (Figure 14 (g), Figure 14 (h)), are provided with the notch part of the battery bag of three terminal structures with S terminals 80 2nd convex strip portions (Figure 14 (f), Figure 14 (h)).

Then, can reference picture 15 be installed with battery bag for each power tool body and illustrate to Figure 22.

As described above, each battery bag instrument joint face notch part, according to the output voltage of the battery bag or S ends The presence or absence of son, the 1st convex strip portions or the 2nd convex strip portions are set in defined position.Here, the ditch between the 1st convex strip portions and the 2nd convex strip portions Groove portion 83 be with corresponding width formed with the battery bag connection located at the corresponding type power tool body 50 (Fig. 6) of 18V monitoring Position corresponding to the convex portion 56 in face 52.It is also, convex when monitoring corresponding type power tool body 50 in 18V and being equiped with battery bag Portion 56 is inserted into the position of the groove 83.

Figure 15 is to represent the explanation figure (its 1) that can electric tool and battery bag be installed.Represented in Figure 15 when 14.4V is defeated Go out coupling part when three terminal structure battery bags 78 (Figure 11) are installed in 18V monitoring correspondence type power tool body 50 (Fig. 6). This is the combination of the solid line (6) shown in Fig. 1.

When three terminal structure battery bags 78 of 14.4V outputs are installed up into 18V monitoring correspondingly type power tool bodies 50, The one side of instrument joint face 79 that 14.4V exports three terminal structure battery bags 78 monitors corresponding type power tool body relative to 18V 50 battery bag joint face 52 and fore-and-aft direction that corresponding type power tool body 50 is monitored along the 18V slides one side and inserted.This When, the convex portion 56 of the corresponding type power tool body 50 of 18V monitoring is inserted into exports three terminal structure battery bags 78 located at 14.4V Groove 83 (Figure 15) between 1st convex strip portions 77 and the 2nd convex strip portions 82.Moreover, the corresponding type power tool body 50 of 18V monitoring Plus end 53, negative terminal 54 and S terminals 55 are inserted into 14.4V and export the plus end 73 of three terminal structure battery bags 78, bear respectively Terminal 74 and S terminals 75.Thus, the corresponding type power tool body 50 of 18V monitoring and 14.4V export three terminal structure battery bags 78 Electrical connection, so as to which 14.4V, which exports three terminal structure battery bags 78, to supply electricity to the corresponding type power tool body 50 of 18V monitoring Power.

Equally, Figure 16 is to represent the explanation figure (its 2) that can power tool body and battery bag be installed.Represented in Figure 16 When three terminal structure battery bags 88 (Figure 13) of 18V outputs are installed in the company when 18V monitoring corresponds to type power tool body 50 Socket part point.This is the combination of the solid line (9) shown in Fig. 1.

When three terminal structure battery bags 88 of 18V outputs are installed up into 18V monitoring correspondingly type power tool bodies 50,18V The convex portion 56 of the corresponding type power tool body 50 of monitoring is inserted into the 1st raised line that three terminal structure battery bags 88 are exported located at 18V Groove 83 (Figure 16) between the convex strip portions 82 of portion 87 and the 2nd.The corresponding type power tool body 50 of 18V monitoring and 18V export three ends Minor structure battery bag 88 is electrically connected, and corresponding type electric tool sheet can be monitored to 18V so as to which 18V exports three terminal structure battery bags 88 The supply electric power of body 50.

As shown in Figure 14 (e) to Figure 14 (h), each battery bag notch part with the 83 corresponding position of groove Put and be not provided with raised line etc..Therefore, any battery Bao Junke is installed up to the corresponding type power tool body 50 (Fig. 6) of 18V monitoring, so as to Can type power tool body 50 corresponding with 18V monitoring electrically connect and supply electric power.

In contrast, the 1st convex strip portions of battery bag are the sides of plus end 73 for the groove 83 for being located at notch part.It is located at Position corresponding to the terminals side extension extended to the side of plus end 53 located at the convex portion of power tool body.

Here, in the battery bag for 14.4V low output voltages, as described above, the 1st convex strip portions are formed as being less than instrument Joint face.When being so provided with 1 low convex strip portions 77, if the battery bag is installed up into electric tool, the terminals side of convex portion Extension is inserted into the top of the 1st low convex strip portions.

Figure 17 is to represent the explanation figure (its 3) that can power tool body and battery bag be installed.Represent and work as in Figure 17 Three terminal structure battery bags 78 (Figure 11) of 14.4V outputs are installed in 14.4V and monitored when corresponding to type power tool body 60 (Fig. 8) Coupling part.This is the combination of the solid line (2) shown in Fig. 1.

As Suo Shi Figure 11 and Figure 14 (f), 14.4V, which exports three terminal structure battery bags 78, has the 1st low convex strip portions 77 And the 2nd convex strip portions 82.Moreover, as shown in Fig. 8 and Figure 14 (c), the convex portion 62 of the corresponding type power tool body 60 of 14.4V monitoring With the shape only extended to the side of plus end 53, and including base portion 62a and terminals side extension 62b.

The corresponding type power tool body 60 of 14.4V monitoring is installed up to when 14.4V is exported into three terminal structure battery bags 78 When, convex portion 62 is inserted between the convex strip portions 82 of instrument joint face 79 and the 2nd.Now, the base portion 62a for the convex portion 62 inserted is located at The top of groove 83, terminals side extension 62b are located at the top (Figure 17) of the 1st convex strip portions 77.Moreover, 14.4V monitoring is corresponding Plus end 53, negative terminal 54 and the S terminals 55 of type power tool body 60 are inserted into 14.4V and export three terminal structure batteries respectively Plus end 73, negative terminal 74 and the S terminals 75 of bag 78.Thus, the corresponding type power tool body 60 of 14.4V monitoring and 14.4V are defeated Go out three terminal structure battery bags 78 to electrically connect, corresponding type can be monitored to 14.4V so as to which 14.4V exports three terminal structure battery bags 78 The supply electric power of power tool body 60.

On the other hand, in the battery bag for 18V high output voltages, the 1st convex strip portions are formed as and instrument joint face phase Same height.When being so provided with 1 high convex strip portions 87, if the battery bag is installed up into power tool body, electronic work The terminals side extension and the 1st convex strip portions 87 for having the convex portion of body can produce interference.

Figure 18 is to represent the explanation figure (its 4) that can electric tool and battery bag be installed.Represented in Figure 18 when 18V is exported Three terminal structure battery bags 88 (Figure 13) are installed in the connection when 14.4V monitoring corresponds to type power tool body 60 (Fig. 8) Part.This is the combination of the dotted line [10] shown in Fig. 1.

As Suo Shi Figure 13 and Figure 14 (h), 18V export three terminal structure battery bags 88 have high the 1st convex strip portions 87 and 2nd convex strip portions 82.

When three terminal structure battery bags 88 of 18V outputs are installed up into 14.4V monitoring correspondingly type power tool bodies 60, As shown in figure 18, the position that the terminals side extension 62b in convex portion 62 should be inserted, the 1st high convex strip portions 87 be present, therefore can phase Mutually interference.As a result, 18V, which exports three terminal structure battery bags 88, can not be installed up to the corresponding type power tool body 60 of 14.4V monitoring. Therefore, the corresponding type power tool body 60 of 14.4V monitoring should not use 18V to export three terminal structure battery bags 88, can not be by 18V Export three terminal structure battery bags 88 and monitor the corresponding supply electric power of type power tool body 60 to unfavorable 14.4V.

Here, provided with the convex portion with the shape extended to terminals side be rated voltage be 14.4V electric tool sheet Body, what it is provided with the 1st high convex strip portions is the battery bag that output voltage is 18V.Therefore, it is low can not to be installed up to rated voltage for battery bag , can not be from the battery bag to power tool body supply electric power in the power tool body of the output voltage of battery bag.

Moreover, the 2nd convex strip portions 82 are located at the side of housing 71 of the groove 83 of notch part.It is located at located at electric tool sheet Position corresponding to the housing side extension extended to the side of housing 51 of the convex portion of body.

Figure 19 is to represent the explanation figure (its 5) that can power tool body and battery bag be installed.Represent and work as in Figure 19 14.4V export three terminal structure battery bags 78 (Figure 11) be installed in 18V monitoring non-corresponding type power tool body 57 (Fig. 7) when Coupling part.This is the combination of the dotted line [13] shown in Fig. 1.

As Suo Shi Figure 11 and Figure 14 (f), 14.4V, which exports three terminal structure battery bags 78, has the 1st convex strip portions 77 and the 2nd Convex strip portions 82.Moreover, as shown in Fig. 7 and Figure 14 (b), the convex portion 59 of 18V monitoring non-corresponding types power tool body 57 has The shape only extended to the side of housing 51, and including base portion 59a and housing side extension 59c.

18V monitoring non-corresponding types power tool body 57 is installed up to when 14.4V is exported into three terminal structure battery bags 78 When, as shown in figure 19, the housing side extension 59c of convex portion 59 and the 2nd convex strip portions 82 produce interference, can not install 14.4V outputs Three terminal structure battery bags 78.Therefore, 18V, which monitors non-corresponding type power tool body 57, to use 14.4V to export three terminals Structure battery bag 78, it is electronic to unfavorable 18V monitoring non-corresponding type that three terminal structure battery bags 78 can not be exported from 14.4V The supply electric power of tool body 57.

Equally, Figure 20 is to represent the explanation figure (its 6) that can power tool body and battery bag be installed.Represented in Figure 20 14.4V monitoring non-corresponding type power tool bodies 63 (Fig. 9) are installed in when 14.4V exports three terminal structure battery bags 78 (Figure 11) When coupling part.This is the combination of the dotted line [12] shown in Fig. 1.

As Suo Shi Fig. 9 and Figure 14 (d), the convex portion 65 of 14.4V monitoring non-corresponding types power tool body 63 has to end The shape of either side extension in sub 53 sides and the side of housing 51, and prolong including base portion 65a, terminals side extension 65b and housing side Extending portion 65c.

14.4V monitoring non-corresponding type power tool bodies are installed up to when 14.4V is exported into three terminal structure battery bags 78 When 63, as shown in figure 20, the housing side extension 65c of convex portion 65 and the 2nd convex strip portions 82 produce interference, and it is defeated can not to install 14.4V Go out three terminal structure battery bags 78.Therefore, 14.4V, which monitors non-corresponding type power tool body 63, should not use 14.4V outputs three Terminal structure battery bag 78, three terminal structure battery bags 78 can not be exported from 14.4V and monitor non-corresponding to unfavorable 14.4V The supply electric power of type power tool body 63.

Moreover, Figure 21 is to represent the explanation figure (its 7) that can electric tool and battery bag be installed.Represent and work as in Figure 21 18V exports company when three terminal structure battery bags 88 (Figure 13) are installed in 18V monitoring non-corresponding type power tool body 57 (Fig. 7) Socket part point.This is the combination of the dotted line [16] shown in Fig. 1.

As Suo Shi Figure 13 and Figure 14 (h), 18V export three terminal structure battery bags 88 include high the 1st convex strip portions 87 and 2nd convex strip portions 82.Moreover, as shown in Fig. 7 and Figure 14 (b), the convex portion 59 of 18V monitoring non-corresponding types power tool body 57 has There is the shape only extended to the side of housing 51, and including base portion 59a and housing side extension 59c.

When three terminal structure battery bags 88 of 18V outputs are installed up into 18V monitoring non-corresponding type power tool bodies 57, As shown in figure 21, the housing side extension 59c of convex portion 59 and the 2nd convex strip portions 82 produce interference, can not install 18V and export three terminals Structure battery bag 88.Therefore, 18V, which monitors non-corresponding type power tool body 57, to use 18V to export three terminal structure batteries Bag 88, three terminal structure battery bags 88 can not be exported from 18V and are supplied to unfavorable 18V monitoring non-corresponding types electric tool 57 Electric power.

And then Figure 22 is to represent the explanation figure (its 8) that can electric tool and battery bag be installed.Represent and work as in Figure 22 18V export three terminal structure battery bags 88 (Figure 13) be installed in 14.4V monitoring non-corresponding type power tool body 63 (Fig. 9) when Coupling part.This is the combination of the dotted line [15] shown in Fig. 1.

14.4V monitoring non-corresponding types power tool body 63 is installed up to when 18V is exported into three terminal structure battery bags 88 When, as shown in figure 22, the terminals side extension 65b of convex portion 65 produces interference, and housing side extension with the 1st high convex strip portions 87 65c and the 2nd convex strip portions 82 produce interference, can not install 18V and export three terminal structure battery bags 88.Therefore, 14.4V monitoring is non-right Answer type power tool body 63 18V should not be used to export three terminal structure battery bags 88, three terminal structures electricity can not be exported by 18V Pond bag 88 monitors the supply electric power of non-corresponding type power tool body 63 to unfavorable 14.4V.

Here, provided with the convex portion with the shape extended to housing side be no FET etc. the electronic work of monitoring non-corresponding type Has body, what it is provided with the 2nd convex strip portions is the battery bag of three terminal structures with S terminals.Therefore, it is electronic in monitoring non-corresponding type Tool body, the battery bag of three terminal structures can not be installed, can not be from the battery bag to power tool body supply electric power.

As described above, in the instrument joint face of battery bag, according to the output voltage and S of the battery for being contained in the battery bag The presence or absence of terminal, and the 1st convex strip portions and the 2nd convex strip portions are set, and battery bag can not be installed up to rated voltage less than output electricity The power tool body of pressure, and make battery capacity be the electric tool that battery bag more than setting can not be installed up to no FET etc. Body, it is therefore possible to prevent irrelevantly using high-capacity battery bag.

The present invention is not limited to the example, can also forbid with other form families using unfavorable battery bag with it is electronic Tool body.

Claims

1. a kind of battery bag, the 1st rated voltage is exported to the electrical equipment body if electrical equipment body is connected to, it is described Battery bag is characterised by including：

1st connection limiting mechanism, allow to be connected to corresponding to the 1st rated voltage and supplied provided with cut-out from the battery bag 1st electrical equipment body of the power shut-off mechanism for the electric power given, and the 1st connection limiting mechanism is forbidden being connected to and corresponded to 1st rated voltage and it is not provided with the 2nd electrical equipment body of the power shut-off mechanism.

2. battery bag according to claim 1, it is characterised in that including：

2nd connection limiting mechanism, allows to be connected to the 1st electrical equipment body corresponding with the 1st rated voltage and institute The 2nd electrical equipment body is stated, and the 2nd connection limiting mechanism is forbidden being connected to and the 2nd volume less than the 1st rated voltage Determine the 3rd electrical equipment body corresponding to voltage.

3. battery bag according to claim 1 or 2, it is characterised in that：It is configured to, for only electrically being set located at the described 2nd 1st identification mechanism of standby body, refused electrically to set to forbid being connected to the described 2nd by the described 1st connection limiting mechanism Standby body.

4. battery bag according to claim 2, it is characterised in that：It is configured to, for being only located at the 3rd electrical equipment sheet 2nd identification mechanism of body, refused by the described 2nd connection limiting mechanism to forbid being connected to the 3rd electrical equipment sheet Body.

5. battery bag according to claim 2, it is characterised in that：In order to located at the described 1st to the 3rd electrical equipment sheet 3rd identification mechanism of whole electrical equipment bodies in body is not refused when battery bag is connected into these electrical equipment bodies Absolutely, it is configured to, the 1st connection limiting mechanism is connected limiting mechanism with the described 2nd and passed through by the 3rd identification mechanism Region beyond region.

6. battery bag according to claim 5, it is characterised in that：It is configured to, by making to limit equivalent to the described 1st connection The convex portion of mechanism and the 2nd connection limiting mechanism equivalent to the described 1st to the protrusions contact of the 3rd identification mechanism with being refused Absolutely, forbid being connected to the electrical equipment body.

A kind of 7. electrical equipment, it is characterised in that：The power shut-off mechanism includes：

Abnormal signal input terminal, have from the battery bag input according to any one of claim 1 to claim 6 and be used for Circulate a notice of abnormal abnormal signal；And

Switching mechanism, according to the abnormal signal of input to the abnormal signal input terminal, cut off the electricity from the battery bag Power supplies.

A kind of 8. battery bag, it is characterised in that including：

Battery pack, it is connected in series with multiple batteries and forms, and battery capacity is more than setting；

Cell voltage monitor control mechanism, the voltage of each battery of the battery pack is monitored, when the voltage of at least any one battery Alarm signal is exported when dropping to below a reference value；

Apparatus connecting unit, plus end, negative terminal formed with the battery pack for being electrically connected with electrical equipment body and defeated Out from the alarm signal lead-out terminal of the alarm signal of the cell voltage monitor control mechanism；And

Power supply mechanism is impermissible for, by electrical equipment body and not of the rated voltage less than the output voltage of the battery pack Any in electrical equipment body provided with the terminal for inputting the alarm signal from alarm signal lead-out terminal output It is individual to be used as unfavorable electrical equipment body, and be configured to can not be by the battery pack to unfavorable electrical equipment sheet Body supply electric power.

9. battery bag according to claim 8, it is characterised in that：The power supply mechanism that is impermissible for is configured to, and makes institute The apparatus connecting unit can not be connected to by stating unfavorable electrical equipment body.

10. battery bag according to claim 9, it is characterised in that：It is described be impermissible for power supply mechanism include with it is described The 1st convex strip portions and the 2nd that any one terminal in plus end, the negative terminal and the alarm signal lead-out terminal is set up in parallel Convex strip portions, and institute can not be connected to unfavorable electrical equipment body of the rated voltage less than the output voltage of the battery pack The mode for stating apparatus connecting unit limits the shape of the 1st convex strip portions, to be not provided with being used for inputting from the alarm signal exporting Unfavorable electrical equipment body of the terminal of the alarm signal of terminal output can not be connected to the mode of the apparatus connecting unit Limit the shape of the 2nd convex strip portions.