CN212635651U

CN212635651U - DC power tool

Info

Publication number: CN212635651U
Application number: CN202021079924.2U
Authority: CN
Inventors: 吴明厅
Original assignee: Zhejiang Ken Power Tools Co ltd; Ken Holding Co ltd
Current assignee: Zhejiang Ken Power Tools Co ltd; Ken Holding Co ltd
Priority date: 2020-06-11
Filing date: 2020-06-11
Publication date: 2021-03-02
Anticipated expiration: 2030-06-11

Abstract

The utility model discloses a direct current power tool, which comprises a power tool body and a plurality of battery packs, wherein the power tool body is provided with at least one battery pack interface; the plurality of battery packs are sequentially and electrically connected to form at least one battery pack group, and the battery pack positioned at the end part in the battery pack group is electrically connected with the battery pack interface. The plurality of battery packs are electrically connected into a battery pack group in sequence, and then the battery pack group is electrically connected with the power tool body. By adopting the mode, the standby time of the direct current power tool is prolonged, so that the service time of the direct current power tool is longer, and the production efficiency is further improved.

Description

DC power tool

Technical Field

The utility model relates to an electric tool field, in particular to direct current power tool.

Background

At present, most direct current power tools on the market are provided with a single battery pack to provide electric energy for the direct current power tools. Only a single battery pack is arranged, and the electricity waiting time is short, so that the service time is short. Therefore, the direct current power tool cannot meet the requirement of long-time use of a user, and the production efficiency is reduced.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a direct current power tool in order to overcome direct current power tool among the prior art only single battery package leads to waiting the short defect that influences production efficiency of electric time.

The utility model discloses an above-mentioned technical problem is solved through following technical scheme:

a direct current power tool is characterized in that the direct current power tool comprises:

the power tool comprises a power tool body, wherein at least one battery pack interface is arranged on the power tool body;

the battery pack comprises a plurality of battery packs, wherein the battery packs are sequentially and electrically connected to form at least one battery pack group, and the battery pack positioned at the end part in the battery pack group is electrically connected with a battery pack interface.

In the scheme, a plurality of battery packs are electrically connected into a battery pack group in sequence, and then the battery pack group is electrically connected with the power tool body. By adopting the mode, the standby time of the direct current power tool is prolonged, so that the service time of the direct current power tool is longer, and the production efficiency is further improved.

Preferably, the battery pack set comprises a first battery pack set and a second battery pack set, and the first battery pack set and the second battery pack set are mirror images of the power tool body.

In the scheme, the structure is adopted, so that the forces distributed on two sides of the power tool body are relatively balanced, and when the direct-current power tool is used, the direct-current power tool cannot be light and heavy. Therefore, the structure can improve the standby time of the direct current power tool and improve the operation hand feeling.

Preferably, the first battery pack group and the second battery pack group are connected in parallel, or the first battery pack group and the second battery pack group are connected in series.

In the scheme, the standby time can be prolonged by adopting the two schemes.

Preferably, the battery packs in the battery pack group are connected in series.

In the scheme, the battery packs in the battery pack group are connected in series to increase the electric capacity of the battery pack group, so that the electricity waiting time of the battery pack group is prolonged.

Preferably, the battery pack comprises a battery pack body and a fastening device, and the plurality of battery pack bodies are sequentially fastened and connected through the fastening device.

In this scheme, through fastener with a plurality of battery package body fastening connection to improve the rigidity of battery package group, and then improve the operation and feel.

Preferably, the fastening device includes a press button, the press button is connected to one side of the battery pack body, a clamping groove is arranged on the other side of the battery pack body, when two adjacent battery packs are connected, the end of the press button on one battery pack body can be clamped in the clamping groove on the other battery pack body, and the end of the press button can be separated from the clamping groove.

In this scheme, can dismantle the connection in order to realize two adjacent battery packages through the connection or the separation of button and draw-in groove, simple structure, occupation space is few, and then can reduce the volume of battery package group.

Preferably, the fastening device further comprises an ejection member, two ends of the ejection member are respectively connected to the press button and the battery pack body, and the ejection member is used for assisting the press button to be connected with the clamping groove or to be separated from the clamping groove.

In the scheme, the locking or unlocking of the press button and the clamping groove is realized through the auxiliary action of the ejection piece, when the locking is needed, the press button is pressed, the ejection piece is compressed, and the press button is connected with the clamping groove and is locked; when the unlocking is needed, the press button is pressed again, the ejection piece is compressed again, and the press button is separated from the clamping groove and unlocked.

Preferably, the press button includes a first limiting portion and a first guiding portion, the clamping groove includes a second limiting portion and a second guiding portion, the first limiting portion abuts against the second limiting portion to limit the press button to be separated from the clamping groove, and the first guiding portion and the second guiding portion are matched to enable the first limiting portion to abut against the second limiting portion or enable the first limiting portion to be separated from the second limiting portion.

Preferably, the first guiding portion and the second guiding portion are inclined planes, the first limiting portion is a protrusion, the second limiting portion is a groove, and the protrusion is in concave-convex fit with the groove.

In this scheme, first guide part and second guide part adopt the slope to play the guide effect to the slip-in and the roll-off of press button. The first limiting part and the second limiting part are matched in a concave-convex mode to achieve locking or unlocking, the structure is simple, and locking is reliable.

On the basis of the common knowledge in the field, the above preferred conditions can be combined at will to obtain the preferred embodiments of the present invention.

The utility model discloses an actively advance the effect and lie in: the utility model discloses a direct current electric tool is through being connected into battery package group with a plurality of battery package electricity in proper order, then is connected battery package group and power tool body electricity. By adopting the mode, the standby time of the direct current power tool is prolonged, so that the service time of the direct current power tool is longer, and the production efficiency is further improved.

Drawings

Fig. 1 is a schematic structural view of a dc power tool according to a preferred embodiment of the present invention.

Fig. 2 is a schematic sectional view taken along line a-a in fig. 1.

Description of reference numerals:

power tool body 10

First battery pack 20

Battery pack 201

Battery pack body 2011

Press button 2012

Ejectors 2013

Card slot 2014

Second battery pack 30

Detailed Description

The present invention will be more clearly and completely described below by way of examples and with reference to the accompanying drawings, but the present invention is not limited thereto.

As shown in fig. 1 and fig. 2, the present embodiment provides a dc power tool, which includes a power tool body 10 and a plurality of battery packs 201, wherein the power tool body 10 is provided with at least one interface of the battery packs 201; the plurality of battery packs 201 are electrically connected in sequence to form at least one battery pack group, and the battery pack 201 at the end of the battery pack group is electrically connected with the battery pack interface.

Wherein a plurality of battery packs 201 are electrically connected in sequence to form a battery pack group, and then the battery pack group is electrically connected to the power tool body 10. By adopting the mode, the standby time of the direct current power tool is prolonged, so that the service time of the direct current power tool is longer, and the production efficiency is further improved.

In the present embodiment, the battery pack group includes a first battery pack group 20 and a second battery pack group 30, and the first battery pack group 20 and the second battery pack group 30 are mirror-symmetrical with respect to the power tool body 10. With this configuration, the forces distributed on both sides of the power tool body 10 are relatively balanced, so that the power tool is not light and heavy when using a dc power tool. Therefore, the structure can improve the standby time of the direct current power tool and improve the operation hand feeling.

The electrical connection manner of the first battery pack group 20 and the second battery pack group 30 is not limited, and the first battery pack group 20 and the second battery pack group 30 may be connected in parallel; the first pack group 20 and the second pack group 30 may also be connected in series. The standby time can be extended by both of these schemes. However, the battery packs in the battery pack group are connected in series. The battery packs in the battery pack group are connected in series to increase the electric capacity of the battery pack group, and further improve the electricity waiting time of the battery pack group. The series connection mode is adopted, the power supply battery packs are not required to be frequently switched, and therefore the operation time can be saved, and the production efficiency can be improved.

In the present embodiment, the battery pack 201 includes a battery pack body 2011 and a fastening device, and the plurality of battery pack bodies 2011 are sequentially fastened and connected by the fastening device. A plurality of battery pack bodies 2011 are fastened and connected through fastening devices, so that the rigidity of the battery pack group is improved, and further the operation hand feeling is improved.

Of course, the structure of the fastening device is not limited, and may be a snap connection type, or may be a structure consistent with the connection of the drawer-type mobile phone card holder and the card slot, or of course, may also be the following structure.

In this embodiment, the fastening device includes a press button 2012, the press button 2012 is connected to one side of the battery pack body, and the other side of the battery pack body 2011 is provided with a clamping groove 2014, when two adjacent battery packs are connected, the end of the press button 2012 on one battery pack body 2011 can be clamped in the clamping groove 2014 on the other battery pack body 2011, and the end of the press button 2012 can be separated from the clamping groove 2014. Through the connection and the separation of button 2012 and draw-in groove 2014 so that two adjacent battery package link together, simple structure, occupation space is few, and then can reduce the volume of battery package group.

Furthermore, the fastening device further comprises an ejector 2013, two ends of the ejector 2013 are respectively connected to the press button 2012 and the battery pack body, and the ejector 2013 is used for assisting the press button 2012 to be connected with the slot 2014 or to be disconnected from the slot 2014. The locking and unlocking of the press button 2012 and the clamping groove 2014 are realized through the auxiliary action of the ejecting piece 2013, when the locking is needed, the press button 2012 is pressed, the ejecting piece 2013 is compressed, and the press button 2012 is connected with the clamping groove 2014 and is locked; when the lock is to be unlocked, the button 2012 is pressed again, the ejector 2013 is compressed again, and the button 2012 is disengaged from the slot 2014 and unlocked.

In this embodiment, the button 2012 includes first spacing portion and first guide part, and draw-in groove 2014 includes spacing portion of second and second guide part, and first spacing portion supports to lean on in spacing portion of second in order to restrict the button 2012 to break away from in draw-in groove 2014, and first guide part and second guide part cooperate so that the spacing portion of first spacing portion second supports to lean on, perhaps make first spacing portion break away from in the spacing portion of second.

Furthermore, the first guide part and the second guide part are inclined planes, the first limiting part is a protrusion, the second limiting part is a groove, and the protrusion is in concave-convex fit with the groove. The first guide portion and the second guide portion guide the slide-in and slide-out of the press button 2012 with the inclined surface. The first limiting part and the second limiting part are matched in a concave-convex mode to achieve locking and unlocking, the structure is simple, and locking is reliable.

The present embodiment provides a dc power tool, and when it is needed, a battery pack is inserted into the battery pack electrical connection interface on the power tool body 10, and the battery pack is fastened to the power tool body 10 by a fastening device. And then the battery packs are sequentially connected and fastened in the above manner. Two sets of battery packs are symmetrically connected to both sides of the power tool body 10. After the work is finished, the battery pack is detached from another battery pack or the power tool body 10 by pressing the lock knob.

Although specific embodiments of the present invention have been described above, it will be understood by those skilled in the art that this is by way of example only and that the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and the principles of the present invention, and these changes and modifications are all within the scope of the present invention.

Claims

1. A direct current power tool, characterized in that it comprises:

2. The direct current power tool of claim 1, wherein the battery pack set comprises a first battery pack set and a second battery pack set, the first battery pack set and the second battery pack set being mirror images relative to the power tool body.

3. The dc power tool of claim 2, wherein the first battery pack group is connected in parallel with the second battery pack group, or wherein the first battery pack group is connected in series with the second battery pack group.

4. The dc power tool of claim 1, wherein the battery packs in the battery pack are connected in series.

5. The direct current power tool according to any one of claims 1 to 4, wherein the battery pack comprises a battery pack body and a fastening device, and a plurality of the battery pack bodies are fastened and connected in sequence by the fastening device.

6. The direct current power tool according to claim 5, wherein said fastening means comprises a press button, said press button is connected to one side of said battery pack body, said battery pack body is provided with a slot on the other side thereof, when two adjacent battery packs are connected, an end of said press button on one of said battery pack bodies is engaged with said slot on the other of said battery pack bodies, and an end of said press button is disengaged from said slot.

7. The direct current power tool according to claim 6, wherein the fastening device further comprises an ejecting member, both ends of the ejecting member are respectively connected to the press button and the battery pack body, and the ejecting member is used for assisting the press button to be connected with or disconnected from the card slot.

8. The direct current power tool according to claim 6, wherein the press button includes a first position-limiting portion and a first guide portion, the engaging groove includes a second position-limiting portion and a second guide portion, the first position-limiting portion abuts against the second position-limiting portion to limit the press button from disengaging from the engaging groove, and the first guide portion and the second guide portion cooperate to abut the first position-limiting portion against the second position-limiting portion or disengage the first position-limiting portion from the second position-limiting portion.

9. The direct current power tool of claim 8, wherein the first guide portion and the second guide portion are inclined surfaces, the first position-limiting portion is a protrusion, the second position-limiting portion is a groove, and the protrusion is engaged with the groove.