CN1868076A - Power Driver and Charger with Flexible Mounting Battery Pack System - Google Patents

Abstract

A power tool may include a housing supporting an electrical circuit. The circuit may include at least two terminal sets arranged in parallel with each other. The at least two terminal sets may include: a first terminal set engaged with a battery pack having a first configuration, and a second terminal set engaged with a battery pack having a second, different configuration. A battery charger may include a housing and an interface that is electrically and mechanically compatible with at least two battery packs having different structures and battery chemistries.

Description

The analog line driver and the charger that have flexible mounting system for battery pack

Technical field

Present invention relates in general to analog line driver, particularly, be used to install the system of battery pack, it can be applied on analog line driver or the battery charger.

Background technology

The wireless power driver can use battery-powered.The shell of analog line driver and/or battery charger can be designed to put special battery pack.For this reason, each analog line driver and battery charger can have and the interactional interface of the respective interface of battery pack, so that suitable electromechanics interconnection to be provided.

Two kinds of traditional interfaces comprise " tower (tower) " interface and " rail formula (rail) " interface.When using tower interface, the shell of analog line driver can comprise cavity, and the shell binding post can be arranged in the bottom of this cavity.At this, the part of battery pack can be inserted in this cavity pocket of outer cover, so that the binding post of battery (can be arranged on the projection (nose portion) of this battery pack) is electrically connected on this shell binding post.People as this area are known, and the shell of analog line driver can also comprise the feature that matches with the battery pack locking mechanism, with removably clamping battery pack.

When using rail formula interface, the shell of analog line driver can comprise groove opposite and supporting housing binding post.At this, the rail of battery pack can insert in this groove of this shell, so that the binding post of battery is electrically connected on this shell binding post.People as this area are known, and the analog line driver shell can also comprise the locking mechanism that matches with the battery pack feature, with removably clamping battery pack.

Though it has been generally acknowledged that the interface of traditional analog line driver and battery charger is acceptable, it is not immaculate.For example, this analog line driver and battery charger only adapt to a battery pack mounting structure.At this shortcoming, developed adapter, it can allow is that the electric tool that the first type mounting structure designs puts the battery pack that is fit to the second type mounting structure specially.Yet adapter may be lost, and may need the processing of trouble, also may bring other inconvenience.

Summary of the invention

In one exemplary embodiment of the present invention, electric tool can comprise shell.Circuit can be supported by this shell.This circuit can comprise at least two terminal group that are connected in parallel to each other and are provided with.Each of these at least two terminal group can directly engage with battery pack.Be not arranged on the adapter that removably joins on the shell in these at least two terminal group.

In another one exemplary embodiment of the present invention, electric tool can comprise shell.Circuit can be supported by this shell.This electric tool can comprise and two dynamo-electric compatible interfaces of battery pack with different structure at least.

In another one exemplary embodiment of the present invention, cordless drill can comprise shell.Circuit can be supported by this shell.This circuit can comprise motor; The first terminal group, it is electrically connected on this motor, and directly engages with the battery pack that has first structure; With second terminal group, it is electrically connected on this motor, and directly engages with the battery pack that has the second different structures.

In another one exemplary embodiment of the present invention, electric tool can comprise shell and interface, and this interface can be dynamo-electric compatible with at least two battery pack with different structure.This interface can comprise at least two terminal group.These at least two terminal group are not provided on the adapter that is fixed on this shell.

In another one exemplary embodiment of the present invention, battery charger can comprise shell and interface.This interface can comprise the tower interface part, and it is dynamo-electric compatible with the tower battery pack that has one of nickel-cadmium cell and nickel-metal-hydrogen battery.This interface can also comprise rail formula interface portion, and it is dynamo-electric compatible with the rail formula battery pack that has lithium ion battery.

Above-mentioned and other features of the present invention comprise the structure of parts of various novelties and the details of combination, give with reference to the accompanying drawings more at large describing.It should be understood that the details of only showing one exemplary embodiment by way of illustration, and not as limitation of the present invention.Principle of the present invention and feature can be applied among numerous various embodiment, and do not depart from the scope of the present invention.

Description of drawings

By following detailed with reference to accompanying drawing, can more fully understand the present invention, given accompanying drawing only is used for diagram, does not therefore limit the present invention, and wherein identical reference number is represented components identical:

Fig. 1 is the circuit diagram of the electric tool element of the exemplary and non-limiting embodiment according to the present invention;

Fig. 2 is the schematic diagram of the analog line driver with flexible installation feature of exemplary and non-limiting embodiment according to the present invention;

Fig. 3 and Fig. 4 be the exemplary and non-limiting embodiment according to the present invention analog line driver can with the schematic diagram of separately the interactional mode of battery pack;

Fig. 5 is the schematic diagram of the battery charger that has flexible installation feature of exemplary and non-limiting embodiment according to the present invention.

Embodiment

I, exemplary circuit diagram-Fig. 1:

Fig. 1 is the schematic diagram of thedemonstrative circuit 1 of each element that can electric interconnected analog line driver.As shown in the figure, theshell 10 of this analog line driver for example can support motor 8, twoterminal group 2,4 and switches 6.Traditional add ons and/or circuit in this technology also can be implemented.Clear in the diagram omitted add ons/circuit among Fig. 1.

This motor 8 can be supported by shell 10.As well known for one of skill in the art, this motor 8 can mechanically connect (and driving) this instrument by the transmission mechanism (not shown).This motor 8 can optionally provide power (supposing to provide battery pack) by opening switch 6.As well known for one of skill in the art, thisswitch 6 can be opened by (for example) plate machine that manipulation is arranged on thisshell 10.

Thisshell 10 can support twoterminal group 2,4.This circuit structure can be that thisterminal group 2,4 can be arranged to parallel form.That is, each of thisterminal group 2,4 can be electrically connected on the same node of circuit 1.Thisterminal group 2,4 can engage effectively with battery pack separately, and these battery pack can have different structure (from the angle of structure and/or electric power).For example, aterminal group 2 can be arranged to engage with the battery terminal of the battery pack with first structure, and anotherterminal group 4 can be arranged to engage with the battery terminal of the battery pack with second different structures.In this one exemplary embodiment,, have only one can be electrically connected on the battery pack in thisterminal group 2,4 for the given time.

As shown in Figure 1, eachterminal group 2,4 can comprise positive terminal and negative terminals.Yet the present invention is not limited in this.For example, eachterminal group 2,4 can comprise a plurality of positive terminal and a plurality of negative terminals.And, can be identical or different at the number of the number of a terminal group middle connecting terminal and another terminal group middle connecting terminal.The present invention is not limited to the binding post with ad hoc structure.Can implement the known numerous various connection terminal structures of those skilled in the art suitably.Though illustrate two-terminal group 2,4 in Fig. 1, the present invention is not limited in this.For example, can implement suitably more than two terminal group.

II, example power driver-Fig. 2-4:

The present invention can be embodied in the analog line driver (as boring) that is used for driven tool (as drill bit).Yet the present invention is not limited in this, because it can also be suitable for being implemented in the various analog line drivers (just not boring) that are used for driving different instruments (not being drill bit).

Fig. 2 is the perspective view withexample power driver 50 of shell 10.Thisshell 10 can have interface 12, and it is convenient to interconnect with the battery pack (machinery and) with optional structure.Be this purpose, and the form to give an example only, this interface 12 can comprise the combination of tower interface part and rail formula interface portion.Be understandable that the present invention is not limited in this, because can implement numerous combinations, optional interface portion suitably.These two kinds of interface portion will be discussed respectively below.And in this one exemplary embodiment, adapter can be arranged to not use in this interface 12.

A, tower interface part

This tower interface part can comprise the cavity 14 that is provided in thisshell 10, and terminal group 2 (having hidden in Fig. 2) can be provided in the bottom of this cavity 14.This shell can also comprise fastener (clip) 16.Each fastener 16 can comprise opening 18.

As shown in Figure 3, this tower interface part can put the battery pack with tower structure.At this, this battery pack 40 can comprise projection 41.Battery terminal set 42 can be provided on this projection 41.This battery pack 40 can also comprise locking mechanism 43.

This battery pack 40 can move on the direction 44 of tower insertion, so that this projection 41 can enter in the cavity 14 of this shell 10.This projection 41 can move in this cavity 14 enough dark, so that this battery terminal set 42 engages with thisterminal group 2 on being arranged on this shell 10.Like this, this battery pack 40 can (by terminal group 2) becomes and is electrically connected on the described demonstrative circuit of Fig. 1.

And as well known for one of skill in the art, this locking mechanism 43 can engage with fastener 16, so that thisshell 10 this battery pack 40 of clamping removably.For example, this locking mechanism 43 can be equipped with spring, so as when battery pack 40 to be installed on thisshell 10 coupling opening 18.Can prevent that battery pack 40 from shifting out,, for example, depress the button of this locking mechanism 43 by the operator unless overcome the spring biasing of this locking mechanism 43.

In Fig. 3, rail formula interface portion (II.B. below partly discusses) is not shown for diagram is clear.It should be understood, however, that and have rail formula interface portion in this embodiment.

B, rail formula interface portion

Get back to Fig. 2, this rail formula interface portion can comprise respectively the pairedgroove 20 that therail 22 by thisshell 10 is defined.As shown in Figure 2, thisgroove 20 can be toward eachother.Terminal group 4 can be provided in thisshell 10 the vertical end towards this groove 20.Thisshell 10 also can compriselocking mechanism 24.

As shown in Figure 4, this rail formula interface portion can put the battery pack of tool rail type structure.At this, thisbattery pack 45 can comprise paired guide rail 46.Battery terminal set 47 can be arranged on the surface of this battery pack 45.Thisbattery pack 45 can also comprise groove 48.

Thisbattery pack 45 can move on thedirection 49 that the rail formula is inserted, so that thisguide rail 46 can enter in thegroove 20 of this shell 10.Thisbattery pack 45 can move enough far away on the direction ofinsertion 49 of rail, so that this battery terminal set 47 engages withterminal group 4 on being provided at this shell 10.Like this, thisbattery pack 45 can become (by terminal group 4) be electrically connected on the demonstrative circuit described in Fig. 1.

And as well known for one of skill in the art, thislocking mechanism 24 can engage with this groove 48, so that thisshell 10 thisbattery pack 45 of clamping removably.For example, thislocking mechanism 24 can be equipped with spring, engages with this groove 48 when being installed on thisshell 10 with thisbattery pack 45 of box lunch.Can prevent that this battery pack 45 from shifting out,, for example, depress the button of thislocking mechanism 24 by the operator unless overcome the spring biasing of thislocking mechanism 24.

In Fig. 4, for graphic clear, this tower interface part (top discussed in the II.A. part) does not illustrate.Yet, be understandable that, there is this tower interface part in this one exemplary embodiment.

In this one exemplary embodiment, when tower battery pack 40 was installed, thisterminal group 2 can be work, and thisterminal group 4 can be idle.Just, whendriver 50 is connected, the electriccurrent terminal group 2 of can flowing through, and theterminal group 4 of not flowing through.And whenbattery pack 45 was installed,terminal group 4 can be work, andterminal group 2 can be idle.Just, whendriver 50 is connected, the electriccurrent terminal group 4 of can flowing through, and theterminal group 2 of not flowing through.

In this one exemplary embodiment, as will be understood that by comparison diagram 3 and 4, this tower direction of insertion 44 and rail formula direction ofinsertion 49 can be perpendicular to one another.Yet the present invention is not limited in this.For example, the interface of shell can comprise the combination at interface, and this combination can be received within the battery pack of inserting on the same direction of insertion.

And the present invention is not limited to top with reference to the details on the 26S Proteasome Structure and Function at Fig. 3 and 4 tower interface of being discussed and rail formula interface.For example, and with reference to Fig. 3, the position separately of this locking mechanism 43 and this fastener 16 can exchange.Similarly, and with reference to Fig. 4, the position separately of thislocking mechanism 24 and this groove 48 can exchange.And, can suitably implement numerous and optional traditional mechanical mechanism, removably battery pack is clamped on the shell of analog line driver.

III, example battery charger-Fig. 5:

Example battery charger 60 described in Fig. 5 can comprise and top some similar interface feature of several example power driver of discussing in part ii.For example, battery charger 60 can have a kind of circuit structure, and wherein the first terminal group and second terminal group can be by the parallel way settings.Yet as hereinafter discussing, there are some marked differences in (between the two).

With reference to Fig. 5, example battery charger 60 can comprise shell 70.This shell 70 can have the interconnected interface 72 of the battery pack being convenient to and having optional structure (machinery and).Form as an example only, interface 72 can comprise that the battery with tower interface and rail formula interface combinations puts port 73, but the present invention is not limited in this.

This tower interface part can comprise cavity 74, and can provide the first terminal group (having hidden in Fig. 5) in the bottom of this cavity 74.This tower interface part can put the battery pack with tower structure.At this, the projection of this battery pack can insert in this cavity 74.This projection can move into enough far away in this cavity 74, so that battery terminal set and be provided at the first terminal set of bond in these cavity 74 bottoms.Like this, this tower battery pack can become and be electrically connected on the internal circuit of this battery charger 60.By the effect of gravity, this tower battery pack can remain on the desired position.

Rail formula interface portion can comprise and is provided at second terminal group 84 that puts vertical end of port 73 in the shell 70 towards this battery.This rail formula interface portion can put the battery pack of tool rail type structure.At this, the guide rail of this battery pack can enter this battery and put in the port 73.Battery pack 45 can move into this battery and put in the port 73 enough far, so that battery terminal set engages with second terminal group 84 on being provided at shell 70.Like this, can become is electrically connected on the internal circuit of this battery charger 60 this rail formula battery pack 45 (by second terminal group 84).By the effect of gravity, this rail formula battery pack can remain on the position of expectation.

In this one exemplary embodiment, when tower battery pack was installed, the first terminal group can be work, and second terminal group 84 can be idle.That is, tower battery pack can be by the current charges of flow through the first terminal group rather than second terminal group 84.And when mounting rail formula battery pack, this second terminal group 84 can be work, and this first terminal group can be idle.That is, rail formula battery pack can be by the current charges of flow through second terminal group 84 rather than the first terminal group.

In this one exemplary embodiment, interface 72 can have the number of chemical feature.For example, the tower interface part can be used for to the batteries charging with nickel-cadmium or nickel-metal-hydrogen battery, and this rail formula interface portion can be used for to the batteries charging with lithium ion battery.At this, this battery charger can be adopted as the designed suitable law of electric charges system of chemical property of concrete battery pack.For this reason, in order to tackle the appearance of the battery pack with special chemical property, additional binding post can append on the first terminal group and second terminal group of this battery charger.

What it will be appreciated by those skilled in the art that is, can implement similar number of chemical feature suitably in the example power driver of discussing in the part ii in the above, wherein the tower interface part can put the battery pack with nickel-cadmium or nickel-metal-hydrogen battery, and this rail formula interface portion can put the battery pack with lithium ion battery.At this, in order to tackle the appearance of the battery pack with special chemical property, additional binding post can append on theterminal group 2,4.In case chemical property is known, the operation of analog line driver can be transposed on the optimal drive performance of given battery pack chemical property.For example, the lithium ion battery group can have the restriction of different discharging currents with respect to nickel-cadmium or nickel-metal-hydrogen battery pack.Driver control can be adjusted discharging current, with this analog line driver of operation in the necessary restriction of battery pack.

Above the present invention is not limited to reference to the details of the 26S Proteasome Structure and Function at this tower interface that Fig. 5 discussed and rail formula interface.For example, this tower interface part and rail formula interface portion can be provided in the battery with different that separates and put in the port (to put port 73 opposite with single battery).And shell 70 can comprise that a plurality of batteries put port 73.

Claims (17)

1, a kind of electric tool comprises:

Shell; With

By this shell circuit supported;

Wherein this circuit comprises at least two terminal group, and it is arranged to be connected in parallel to each other, and each of these at least two terminal group all directly engages with battery pack.

2, electric tool according to claim 1, wherein these at least two terminal group comprise: the first terminal group that engages with battery pack with first structure, with second terminal group that engages with battery pack with second different structures.

3, electric tool according to claim 1 wherein has only one at least and in time engages with battery pack in these two terminal group in the given time.

4, electric tool according to claim 1, wherein this circuit comprises motor.

5, electric tool according to claim 1, wherein this circuit comprises switch.

6, electric tool according to claim 1, wherein this shell comprises cavity, and in these at least two terminal group one is arranged in the bottom of this cavity.

7, electric tool according to claim 1, wherein this shell comprises the rail that defines groove respectively, and vertical terminal a setting towards this groove in these at least two terminal group.

8, electric tool according to claim 1, wherein neither one is arranged on the adapter that detachably engages with this shell in these at least two terminal group.

9, a kind of electric tool comprises:

Shell; With

By this shell circuit supported;

Wherein this electric tool comprises the interface, and it is dynamo-electric compatible with at least two kinds of battery pack with different structure.

10, electric tool according to claim 9, wherein this interface comprises at least two terminal group of this circuit.

11, electric tool according to claim 10, wherein these at least two terminal group directly can be connected on the battery pack separately with different structure.

12, a kind of cordless drill comprises:

Shell; With

By this shell circuit supported;

Wherein this circuit comprises

Motor,

The first terminal group is electrically connected on this motor, and directly engage with battery pack with first structure and

Second terminal group is electrically connected on this motor, and directly engages with the battery pack with second different structures.

13, cordless drill according to claim 12, wherein this circuit comprises switch.

14, a kind of electric tool comprises:

Shell; With

The interface, it is dynamo-electric compatible with at least two kinds of battery pack with different structure;

Wherein this interface comprises at least two terminal group, and these at least two terminal group neither ones are provided on the adapter that is fixed to this shell.

15, a kind of battery charger comprises:

Shell; With

The interface has

The tower interface part, its with the tower battery pack with one of nickel-cadmium cell and nickel-metal-hydrogen battery be dynamo-electric compatible and

Rail formula interface portion, it is dynamo-electric compatible with the rail formula battery pack with lithium ion battery.

16, battery charger according to claim 15, wherein this interface comprises at least two terminal group that are fixed on this shell.

17, battery charger according to claim 15, wherein this shell comprises that single battery puts port.

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