CN101007401A - power tool set - Google Patents

Abstract

The invention relates to an electric tool set, which comprises an electric tool and a charging seat. The electric tool comprises a shell and a first charging terminal arranged in the shell, wherein the shell is provided with an inserting part; the charging seat comprises a seat body and a second charging terminal arranged in the seat body, wherein the seat body is provided with an inserting groove, the groove shape of the inserting groove is matched with the appearance of the inserting part, so that the inserting part of the electric tool can be stably inserted into the inserting groove of the charging seat, and the first charging terminal is electrically connected with the second charging terminal.

Description

power tool set

technical field

The utility model relates to electric tools, in particular to an electric tool set.

Background technique

A commercially available electric tool uses a battery in its housing as the power source. If the battery is exhausted, it must be supplemented by a charging stand.

The above-mentioned electric tools usually have a pair of lead terminal pieces exposed on the housing, and the pair of lead terminal pieces are respectively electrically connected to the positive and negative poles of the battery; There are two other lead end pieces on the seat corresponding to the position of the pair of lead end pieces. contact with the terminal piece so that the charging stand can charge the battery of the electric tool.

The disadvantage of the above-mentioned way of acting as the electric tool is that the electric tool is not easy to be quickly positioned on the charging stand, and the contact relationship between the lead end piece of the electric tool and the lead end piece of the charging stand is easy to be caused by Poor positioning between the electric tool and the charging stand is affected; that is, when the position of the electric tool on the charging stand deviates, the conductive piece of the electric tool and the conductive piece of the charging stand cannot To make a contact connection, the user must readjust the position of the electric tool in order to make the electric tool electrically connected to the charging stand. Therefore, when the electric tool is being charged, the position between it and the charging base is likely to deviate, which will cause confusion and inconvenience to the user in the charging operation.

Utility model content

The main purpose of the present utility model is to provide an electric tool set, which has an electric tool and a charging stand. charging lead.

In order to achieve the above purpose, the electric tool set provided by the utility model includes an electric tool and a charging stand. The electric tool has a housing, a driving device, a tool holding device, a battery and a first charging terminal; the housing has an insertion portion, and the insertion portion has an opening; the driving device is located on the Inside the housing; the tool retention device is located in the housing and connected to the driving device; the battery is located in the housing and electrically connected to the driving device; the first charging terminal is located in the housing , which has a body, a first lead end and a second lead end, wherein the body has an insertion hole, the insertion hole is facing the opening of the insertion part; the first lead end is set The body is located in the insertion hole, and is electrically connected to the battery, and its central axis is parallel to the central axis of the insertion hole; the second lead end is provided on the body and located in the insertion hole The wall of the hole, and is electrically connected with the battery; the charging base has a base, a charging circuit board and a second charging terminal, wherein the base has an insertion slot, and the slot shape of the insertion slot is in line with the The outer shape of the insertion part of the housing is matched so that the insertion part can be stably inserted into the insertion groove, and the groove wall of the insertion groove is provided with an opening communicating with the insertion groove and the inside of the seat body ; the charging circuit board is located in the base body, which has a charging circuit; the second charging terminal is located in the base body, which has a tubular body, a third lead end and a fourth lead end, Wherein the tubular body extends into the insertion groove from the opening of the insertion groove, the third leading end and the fourth leading end are respectively arranged on the inner pipe wall and the outer pipe wall of the tubular body, and The third lead end and the fourth lead end are respectively electrically connected to the charging circuit; by being inserted into the insertion slot of the charging stand by the insertion part of the electric tool, the tubular shape of the second charging terminal The main body is inserted into the insertion hole of the first charging terminal from the opening of the insertion part, and the first conducting end of the first charging terminal is inserted into the tubular body of the second charging terminal, so that the first and third The conducting end is electrically connected with the second and fourth conducting ends respectively. Through this, the electric tool provided by the utility model can be stably inserted into the charging stand provided by the utility model when charging, so as to achieve the purpose of increasing the convenience of the charging operation.

The following preferred embodiments are listed in conjunction with the drawings, in order to describe the structure and effect of the present utility model in detail; wherein the drawings used are first briefly described as follows:

Description of drawings

Fig. 1 is a partial cross-sectional view of a preferred embodiment of the present invention, mainly showing the combined state of the electric tool and the charging stand;

Fig. 2～Fig. 3 are respectively the sectional view of some components in the embodiment shown in Fig. 1;

Figure 4 is a perspective view of the embodiment shown in Figure 1; and

FIG. 5 is an exploded perspective view of the charging stand provided by the embodiment shown in FIG. 1 .

[Description of main component symbols]

Power Tool Set 10

Electric tool 20 shell 21 body 211

Grip part 212 Insertion part 213 Opening 214

Switch button 215 Driving device 22 Motor 221

Speed change gear set 223 Tool retaining device 23 Tool retainer 232

Battery 24 First charging terminal 25 Body 251

First lead end 252 Second lead end 253 Insertion hole 254

Charging stand 30 seat body 32 top cover 321

Bottom plate 322 Bearing slot 323 Inserting slot 324

Positioning slot 325 container chamber 326 opening 327

Snap hook 328 Snap slot 329 Charging circuit board 34

Power cord connector 342 Second charging terminal 36

Tubular body 362 Third guide end 364

The fourth connecting end 366

Detailed ways

Referring to FIGS. 1 to 4 , an electric tool set 10 provided by a preferred embodiment of the present invention includes an electric tool 20 and a charging stand 30 .

The electric tool 20 has a housing 21 , a drive device 22 , a tool holding device 23 , a battery 24 and a first charging terminal 25 .

The casing 21 has a body portion 211 and a grip portion 212, wherein the grip portion 212 extends outwards from the body portion 211 at a predetermined angle, and forms a convex arc-shaped insert at its end with a gradually decreasing outer diameter. The inserting portion 213 has an opening 214 at the bottom end of the inserting portion 213 . In addition, the holding portion 212 is provided with a switch button 215 for activating the power tool 20 .

The driving device 22 is disposed in the body 211 of the housing 21 , and has a motor 221 and a transmission gear set 223 connected to the motor 221 .

The tool retaining device 23 is located in the body 211 of the housing 21, and has a tool retaining part 232 protruding from the body 211 for retaining a tool head; the tool retaining device 23 is connected with the shift gear 223, so that the tool holder 232 can be driven by the motor 221 to rotate.

The battery 24 is disposed in the handle portion 212 of the housing 21 and is electrically connected to the motor 221 for providing power to the motor 221 .

The first charging terminal 25 is set in the insertion portion 213 of the housing 21, and has a body 251, a first lead end 252, and a second lead end 253; the body 251 has an insertion hole 254, and the insertion hole 254 is facing the opening 214 of the insertion part 213; the first lead-in end 252 is elongated columnar, is provided on the body 251 and is located in the insertion hole 254, and its center The axis is the same as the central axis of the insertion hole 254 ; in addition, the first lead end 252 is electrically connected to the battery 24 . The second lead end 253 is disposed on the main body 251 and located on a wall of the insertion hole 254 , and is also electrically connected to the battery 24 .

The charging stand 30 has a base body 32 , a charging circuit board 34 , and a second charging terminal 36 .

The seat body 32 has a top cover 321 and a bottom plate 322; the top surface of the top cover 321 has a receiving groove 323, an insertion groove 324, and a positioning groove 325 adjacent to the receiving groove 323, wherein the insertion The groove shape of the slot 324 is matched with the shape of the insertion portion 213 of the electric tool 20 and is in a concave arc shape in which the groove diameter gradually decreases from the notch, so that the insertion portion 213 of the electric tool 20 can only move along a single straight line. enter or open the inserting slot 324 , and be firmly inserted into the inserting slot 324 . And when the insertion part 213 is inserted in the insertion groove 324, the body part 211 of the electric tool 20 is partly placed in the receiving groove 323, and the switch button 215 of the grip part 212 is is positioned in the positioning slot 325 . The seat body 32 has a chamber 326 inside, and the seat body 32 defines an opening 327 connecting the insertion groove 324 and the chamber 326 on the bottom wall of the insertion groove 324 . In addition, the peripheral wall of the chamber 326 of the seat body 32 has an engaging groove 329, and the bottom plate 322 has an engaging hook 328 matching the engaging groove 329 of the top cover 321, so that the bottom plate 322 can be combined with the top cover 321. .

In the above components, the central axis of the insertion hole 254 of the first charging terminal 25 is parallel to the straight line direction of the insertion portion 213 entering or leaving the insertion groove 324 .

The charging circuit board 34 is located on the bottom plate 322 of the base body 32, and has a charging circuit and a power cord connector 342, wherein the power cord connector 342 is electrically connected to one end of a power cord, the power cord The other end is connected to a power plug, which can be electrically connected to a power socket for providing power to the charging circuit board 34 .

The second charging terminal 36 has a tubular body 362 , a third connecting end 364 , and a fourth connecting end 366 . The tubular body 362 is arranged on the charging circuit board 34 and extends into the insertion groove 354 from the opening 327 of the insertion groove 324, and its central axis is parallel to the insertion portion 213 entering or leaving the insertion groove. The linear direction of the slot 324; the third lead end 364 is set on the inner peripheral wall of the tubular body 362, and is electrically connected with the charging circuit; the fourth lead end 366 is set on the outer periphery of the tubular body 362 wall, and is electrically connected with the charging circuit. When the insertion portion 213 of the electric tool 20 is inserted into the insertion slot 324 of the charging stand 30 , the tubular body 362 of the second charging terminal 36 will be inserted into the first charging terminal 25 through the opening 214 of the insertion portion 213 In the insertion hole 254 of the first charging terminal 25, the first connecting end 252 of the first charging terminal 25 is inserted into the tubular body 362 of the second charging terminal 36, so that the first and third connecting ends 252, 364 are respectively connected to the second, third and second charging terminals. The four conducting ends 253366 are electrically connected.

Through the above structure, when the user intends to insert the electric tool 20 into the charging stand 30 for charging, since the shape of the insertion part 213 matches the shape of the insertion groove 324, and the The insertion hole 254 of the first charging terminal 25 and the central axis of the tubular body 362 are parallel to the straight line direction in which the insertion portion 213 enters or leaves the insertion groove 324, except that the electric tool 20 can be firmly inserted into the On the charging stand 30, the first charging terminal 25 of the electric tool 20 and the second charging terminal 36 of the charging stand 30 can be quickly and stably electrically connected; in addition, when the electric tool 20 is inserted into When the charging stand 30 is used, the body 211 and the switch button 215 of the electric tool 20 can also be respectively positioned in the receiving groove 323 and the positioning groove 325 of the charging stand 30, so that the electric tool 20 will not be damaged when charging. The external force makes the position between the electric tool 20 and the charging stand 30 deviate.

Through this, when the electric tool set 10 provided by the present invention is being charged, the electric tool 20 can be stably inserted into the charging stand 30 to achieve the purpose of increasing the convenience of the charging operation.

Claims (8)

1. an electric tool group is characterized in that, includes:

One electric tool has a housing, and this housing has an inserting part, and this inserting part has the inside and outside portion of this housing of open communication; One drive unit is to be located in this housing; One instrument is held and is stayed device, is to be located in this housing, and is connected with this drive unit; One battery is to be located in this housing, and electrically connects with this drive unit; One first charging terminal is to be located in this housing, has a body, one first guiding access and one second guiding access; This body has an inserting hole, and this inserting hole is the opening that is right against this inserting part; This first guiding access is elongate column, is to be located on this body and to be arranged in this inserting hole, and electrically connects with this battery that its central shaft is the central shaft that is parallel to this inserting hole; This second guiding access is to be located at this body and to be positioned on the hole wall of this inserting hole, and electrically connects with this battery; And

One cradle has a pedestal, a charging circuit board and one second charging terminal; This pedestal has an insertion slot that matches with the inserting part of this housing, and the cell wall of this insertion slot is provided with the opening of this insertion slot of connection and this pedestal inside; This charging circuit board is to be located in this pedestal, and it has a charging circuit; This second charging terminal is to be located in this pedestal, and it has a tubular body, one the 3rd guiding access and one the 4th guiding access; This tubular body is that the opening from this insertion slot stretches in this insertion slot; The 3rd guiding access and the 4th guiding access are inner tubal wall and the outer tube walls of being located at this tubular body respectively, and the 3rd guiding access and the 4th guiding access electrically connect with this charging circuit respectively; Be inserted in by inserting part in the insertion slot of this cradle by this electric tool, the tubular body of this second charging terminal inserts in the inserting hole of this first charging terminal from the opening of this inserting part, first guiding access of this first charging terminal then inserts in the tubular body of this this second charging terminal, makes this first and third guiding access and this second, four guiding access be electric connection respectively.

2. according to the described electric tool group of claim 1, it is characterized in that, the profile of described this inserting part and the flute profile of this insertion slot, be to be the shape that makes this inserting part only can enter or leave this insertion slot, and the axial line of this inserting hole and this tubular body is to be parallel to this rectilinear direction along a single rectilinear direction.

3. according to the described electric tool group of claim 1, it is characterized in that described this housing has the whole body portion, this cradle has a bearing groove, when the inserting part of this electric tool inserted in the insertion slot of this cradle, this body portion of part was can be by bearing in this bearing groove.

4. according to the described electric tool group of claim 3, it is characterized in that described this drive unit is to be located in the body portion of this housing.

5. according to the described electric tool group of claim 4, it is characterized in that described this drive unit includes the change-speed gearing group that a motor and connects this motor; In addition, this instrument is held and stayed device is to be located in the body portion of this housing, and it has the instrument that stretches out this body portion holds and stay part, and stay a tool heads, this instrument to hold to stay device be to be connected with this speed change tooth group in order to hold, and this instrument is held stay part can be subjected to the driving of this motor and is rotated.

6. according to the described electric tool group of claim 3, it is characterized in that described this housing has more a grip part, this grip part is to be predetermined angular by this body portion to extend outward, and in its terminal this inserting part that forms.

7. according to the described electric tool group of claim 6, it is characterized in that, described this inserting part is to be the diminishing convex arc shaped of external diameter, the flute profile of this insertion slot then corresponds to the profile of this inserting part, be from groove without leave notch begin diminishing concave arc shape, make this inserting part only can enter or leave the shape of this insertion slot, and the axial line of this inserting hole and this tubular body is to be parallel to this rectilinear direction along a single rectilinear direction.

8. according to the described electric tool group of claim 6, it is characterized in that described this electric tool more includes a shift knob, this shift knob is to be located on this grip part; Again, this cradle has a locating slot in abutting connection with this bearing groove, and when inserting in the insertion slot of this cradle by the inserting part with this electric tool, this shift knob can be located in this locating slot.

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