TW201700230A - Battery adapting device of electric tool which is convenient to assemble and can be changed with the series length corresponding to the power requirement - Google Patents

Abstract

A battery adapting device of an electric tool comprises: a first adapting seat and a battery seat. The first adapting seat is detachably coupled to a first battery pack. The battery seat is detachably coupled to a second battery pack. The first adapting seat and the battery seat both comprise: a seat body that has a first coupling portion on one side and a second coupling portion at a corresponding location on an opposite side. The first coupling portion is disposed with coupling slot. The second coupling portion has a coupling pillar. The coupling pillar has a cross-section and a shape that are complementary to a slot configuration of the coupling slot. The coupling pillar of the first adapting seat is arranged, in a rotatable manner, in the coupling slot of the battery seat.

Description

Battery adapter for power tools

The invention relates to a battery adapter device, and more particularly to a battery adapter device for a power tool.

With the advancement of the electronics industry, general hand tools (such as screwdrivers, wrenches, etc.) have gradually been replaced by electric tools using electric energy as an energy source and are prevalent in the market, reducing the burden of laborers in the past and effectively improving construction efficiency. .

In addition, in order to prevent the staff from constructing the scope of the power cord for the outlet of the mains during the construction process, the scope of construction and activities of the staff is limited, and the industry has developed a power tool with a built-in battery pack to facilitate the work. During the construction process, personnel carry power tools to different construction areas for operation.

Referring to FIG. 1 , the structure of the conventional power tool A includes a body body a, an adapter b, and a battery pack c. The fuselage a is combined with an adapter b; the battery pack c is disposed at the bottom end of the adapter b. Among them, the power tool A is the power source stored by the battery pack c as a power source for operation.

However, the above-mentioned power tool A, because of the other factor of the battery pack c that supplies the power, is far more than the weight of the power tool that is generally electrically connected to the socket through the power cord, and the worker is in the process of holding the power tool A. It is easy to cause fatigue of hand acid, and it is impossible to carry out construction work for a long time.

In addition, when the power supply of the battery pack c of the power tool A is exhausted, it is necessary to remove and replace the battery pack c full of electric energy to continue the operation; accordingly, if the worker climbs to the height where the replacement operation is not convenient, At high altitude, once the power supply is exhausted, the staff must replace the battery pack c on the ground, which adds a lot of inconvenience.

In view of the above, an object of the present invention is to provide a battery switching device for a power tool, which is not only easy to assemble, but also can change the serial length in response to the power demand.

In order to achieve the above objective, the battery adapter device of the power tool provided by the present invention is configured to connect a power tool and a battery pack, the battery adapter device comprising: a first adapter and a battery holder, the first An adapter is detachably coupled to the first battery pack, the battery holder is detachably coupled to the second battery pack, wherein the first adapter and the battery holder both comprise There is: a body having a first joint portion on one side and a second joint portion at a corresponding position on the opposite side; the first joint portion is provided with a joint groove; the second joint portion has a joint column The cross-section and shape of the binding post are complementary to the groove shape of the coupling groove; wherein the coupling post of the first adapter is rotatably disposed in the coupling groove of the battery holder; The socket further includes a set of first conductive terminals disposed on the base of the first adapter for electrically guiding the first adapter when the first adapter is coupled to the first battery pack Electrode terminal of the battery pack; a second adapter for detachably bonding The second adapter has a second conductive terminal for electrically connecting the power receiving terminal of the power tool when the second adapter is coupled to the power tool; and a power source The wire is electrically connected to the second conductive terminal of the second adapter, and the other end of the wire is electrically connected to the first conductive terminal.

In this way, the staff is not only easy to assemble, but also can change the length of the series according to the power demand.

[this invention]

100‧‧‧Battery Adapter

10‧‧‧First adapter

11‧‧‧

112‧‧‧First conductive terminal

11a‧‧‧First side wall

11b‧‧‧second side wall

12‧‧‧ First Joint Department

121‧‧‧ Combination slot

122‧‧‧ openings

123‧‧‧ gap

13‧‧‧Extension block

14‧‧‧ binding column

15‧‧‧Shrap

20‧‧‧Second adapter

30‧‧‧Power cord

40‧‧‧ battery holder

42‧‧‧ first joint

421‧‧‧ joint slot

422‧‧‧ openings

423‧‧ ‧ gap

200‧‧‧First battery pack

202‧‧‧electrode terminal

300‧‧‧Power Tools

400‧‧‧Second battery pack

1 is a schematic view of a conventional power tool; FIG. 2 is a perspective view of a battery adapter device according to a preferred embodiment of the present invention; FIG. 3 is a perspective exploded view of the first adapter and the same first adapter. Figure 4 is a perspective view of the first adapter; Figure 5 is a perspective view of the first adapter in series with another identical first adapter; Figure 6 is a cross-sectional view taken along line 6-6 of Figure 5.

In order to explain the present invention more clearly, the preferred embodiment will be described in detail with reference to the drawings, and FIG. 2 to FIG. FIG. 2 is a perspective view showing the manner of use of the battery adapter device according to a preferred embodiment of the present invention. The battery switching device 100 is configured to connect a first battery pack 200, a second battery pack 400, and a power tool 300. The battery adapter device 100 mainly includes a first adapter 10 , a battery holder 40 , a second adapter 20 , and a power cord 30 . The first adapter 10 is detachably coupled to the first battery pack 200. The battery holder 40 is detachably coupled to the second battery pack 400. The second adapter 20 is detachably coupled to the bottom end of the handle of the power tool 300. The second adapter 20 has a set of second conductive terminals (not shown), and when the second adapter 20 is coupled to the motor In the case of the tool 300, the second conductive terminal is electrically connected to the power receiving terminal (not shown) of the power tool 300.

One end of the power cable 30 is electrically connected to the second conductive terminal of the second adapter 20, and the other end of the power cable 30 is electrically connected to a set of first conductive terminals 112 of the first adapter 10 (see FIG. 4).

Referring to FIG. 3 to FIG. 5 , the first adapter 10 includes a body 11 , the first conductive terminal 112 and a resilient piece 15 .

The first conductive terminal 112 is disposed on the base 11 of the first adapter 10 for electrically guiding the first battery when the first adapter 10 is coupled to the first battery pack 200. The electrode terminal 202 of the package 200.

The base body 11 has a first joint portion 12 integrally formed, a second joint portion at a corresponding position on the opposite side, and a first side wall 11a and a second side wall 11b at two opposite positions.

The first joint portion 12 is disposed on the first side wall 11a and has a coupling groove 121, an opening 122 and a notch 123. The coupling groove 121 is formed to be recessed from the wall surface of the first joint portion 12. The opening 122 is located at one end of the first joint portion 12 and communicates with the joint groove 121 and the opening of the joint groove 121. The notch 123 is located on the wall surface of the first joint portion 12 and communicates with the coupling groove 121.

The second joint portion of the embodiment is composed of an extension block 13 and a coupling post 14, wherein the extension block 13 is outwardly protruded from the second side wall 11b. Further, the extension block 13 has a thickness smaller than the coupling groove. The width of the opening of 121 is such that the axial length of the extension block 13 is smaller than the diameter of the notch 123 in the same direction.

The binding post 14 is a cylindrical body, and a part of the side surface thereof is connected to the extending block 13 so that there is a gap between the binding post 14 and the second side wall 11b, and the gap has a width greater than a wall thickness of the first joint portion 12. . The cross-section and shape of the binding post 14 are complementary to the groove shape of the coupling groove 121, and the binding post 14 The axial length is greater than the length of the extension block 13 in the same direction, and the diameter of the binding post 14 is smaller than the diameter of the opening 122.

The elastic piece 15 is coupled to the wall surface of the base body 11 and disposed between the first side wall 11a and the second side wall 11b, and the other end is configured to be clamped between the elastic piece 15 and the base body 11. Objects (such as: pants, pockets, belts, etc.).

The battery holder 40 also includes a body, and the base of the battery holder 40 is similar to the base 11 of the first adapter 10, except that the battery holder 40 does not have the first adapter 10 The components of the first conductive terminal 112, therefore, when the second battery pack 400 is coupled to the battery holder 40, are not electrically connected to any of the components.

The above is a description of the structure of the battery switching device 100 of the present embodiment. The following describes the manner of use: Referring to FIG. 3, before the worker wants to perform the work, a first adapter 10 and a plurality of battery holders 40 can be used. The serial connection is combined to embed a plurality of battery packs in the first adapter 10 and each of the battery holders 40 to facilitate carrying by the staff. For convenience of description, a first adapter 10 and a battery holder 40 are used. The method for combining the first adapter 10 and the battery holder 40 is as follows: first, the binding post 14 of the first adapter 10 and the extension block 13 are aligned with the opening of the first joint portion 42 of the battery holder 40. 422, the binding post 14 of the first adapter 10 and the extension block 13 can be inserted into the coupling slot 421 through the opening 422 of the battery holder 40.

Next, referring to FIG. 3, FIG. 5 and FIG. 6, the first adapter 10 is rotated to rotate the coupling post 14 and the extension block 13 so that the extension block 13 is in the coupling groove 421 of the battery holder 40. Moving into the notch 423 and abutting against the wall surface of the notch 423, and combining the first battery pack 200 with the first adapter base 10 and the second battery pack 400 in combination with the battery holder 40, so that each of the batteries The first adapter 10 and the battery after the serial connection The sockets 40 are arranged adjacent to each other. When the first adapter 10 or the battery holder 40 is relatively rotated to a certain angle, the wall faces of the two battery packs abut each other, thereby limiting the first adapter. 10 and the angle of the battery holder 40 to prevent the extension block 13 of the first adapter 10 from being away from the wall surface of the gap 423 of the battery holder 40, so that the first adapter 10 and the battery holder 40 are separated from each other, and then By engaging the elastic piece 15 on the belt of the worker, the action of connecting the plurality of first adapters and carrying the plurality of battery packs is completed.

Then, when the first battery pack is out of power, the user can remove the first battery pack 200 and the second battery pack 400, and then combine the second battery pack 400 with the first adapter 10 to enable the power tool 300 to continue to use.

In summary, the battery switching device 100 of the present embodiment has the advantages and effects listed below:

1. The main purpose of the first adapter 10 of the present embodiment is to connect the other battery holders 40 in series. Therefore, the worker can evaluate the power demand during the operation and adjust the number of serial connections of the battery holder 40.

2. The first adapter 10 and the elastic piece 15 of the battery holder 40 are used for hooking on the clothes of the staff, so that the first adapters 10 connected in series can pass through the elastic pieces 15 The embodiment shown in Figure 2 is placed on the staff's belt so that the staff can still carry it while they are active.

3. The first adapter 10 and the battery holder 40 are connected to each other in a pivotal manner. Therefore, the first adapters 10 and the battery packs of the first adapters 10 are electrically coupled. 200, the angle of the gap between the staff can be changed according to the width of the waist of the staff, so as to surround the waist of the staff.

4. As described above, since the first adapter 10, the battery holder 40 and the corresponding battery pack are hooked on the waist of the worker, the bottom of the power tool 300 only combines the light weight. The second adapter 20 is based on the fact that the worker is not easy to use the power tool when holding the power tool 300 The load of 300 is too heavy to produce a fatigue phenomenon such as hand acid, which is conducive to long-term construction work.

5. After the power supply of one of the battery packs is completed, the worker only needs to replace the battery pack having the power amount with the first adapter 10 to continue using the power tool 300.

The above description is only a few preferred embodiments of the present invention, and equivalent changes to the scope of the present invention and the scope of the patent application are intended to be included in the scope of the present invention.

100‧‧‧Battery Adapter

10‧‧‧First adapter

20‧‧‧Second adapter

30‧‧‧Power cord

40‧‧‧ battery holder

200‧‧‧First battery pack

300‧‧‧Power Tools

400‧‧‧Second battery pack

Claims (9)

A battery adapter device for connecting a power tool with a first battery pack and a second battery pack, the battery adapter includes: a first adapter and a battery holder, the first An adapter is detachably coupled to the first battery pack, the battery holder is detachably coupled to the second battery pack, wherein the first adapter and the battery holder both comprise There is: a body having a first joint portion on one side and a second joint portion at a corresponding position on the opposite side; the first joint portion is provided with a joint groove; the second joint portion has a joint column The cross-section and shape of the binding post are complementary to the groove shape of the coupling groove; wherein the coupling post of the first adapter is rotatably disposed in the coupling groove of the battery holder; The socket further includes a set of first conductive terminals disposed on the base of the first adapter for electrically guiding the first adapter when the first adapter is coupled to the first battery pack An electrode terminal of the battery pack; a second adapter for detachably bonding The second adapter has a second conductive terminal for electrically guiding the power receiving terminal of the power tool when the second adapter is coupled to the power tool; and a power cord One end is electrically connected to the second conductive terminal of the second adapter, and the other end thereof is electrically connected to the set of first conductive terminals. The battery adapter of the power tool of claim 1, wherein the base of the first adapter has a first side wall and a second side wall at a corresponding position on the opposite side; the first joint is connected The first side wall further has a notch communicating with the coupling groove; the second joint portion has an extension block protruding outward from the second side wall, and the axial length of the extension block is smaller than the notch in the same direction The upper aperture is further connected to the binding post such that there is a gap between the binding post and the second side wall. The battery adapter of the power tool of the power tool of claim 2, wherein the gap has a width greater than a wall thickness of the first joint. The battery adapter device of the power tool of claim 1, wherein the first joint portion of the first adapter has an opening that communicates with the coupling groove of the first adapter, and the shape of the opening is combined with the coupling column The shapes of the sections are complementary. The battery adapter of the power tool of claim 1, wherein the first adapter further comprises a resilient piece, the elastic piece being coupled to the seat of the first adapter and having the other end for clamping An object between the shrapnel and the seat. The battery adapter of the power tool of claim 1, wherein the base of the battery holder has a first side wall and a second side wall at a corresponding position on the opposite side; the first joint connects the first a sidewall, and further having a notch communicating with the coupling groove; the second joint has an extension block protruding outward from the second sidewall, and the extension block The axial length is smaller than the diameter of the notch in the same direction. In addition, the extension block is connected to the binding post such that there is a gap between the bonding post and the second sidewall. The battery adapter of the power tool of the power tool of claim 6, wherein the gap has a width greater than a wall thickness of the first joint. The battery adapter of the power tool of claim 1, wherein the first joint portion of the battery holder has an opening that communicates with the coupling groove of the first adapter, and the shape of the opening and the section of the coupling post The shapes complement each other. The battery adapter of the power tool of claim 1, wherein the battery holder further comprises a resilient piece, the elastic piece is coupled to the base of the second battery holder at one end, and the other end is configured to clamp the elastic piece and the Objects between the seats.