CN210361182U

CN210361182U - Electric tool

Info

Publication number: CN210361182U
Application number: CN201920882199.3U
Authority: CN
Inventors: 陈华清
Original assignee: Chevron HK Ltd
Current assignee: Nanjing Chervon Industry Co Ltd
Priority date: 2019-06-12
Filing date: 2019-06-12
Publication date: 2020-04-21
Anticipated expiration: 2029-06-12

Abstract

The utility model discloses an electric tool, including the casing, the casing includes the angle of exhibition, and the angle of exhibition is used for installing the battery package, is provided with the contact flexible glue that is used for wrapping the contact with the battery at the angle of exhibition at least on the position that the battery package clearance is minimum, and the contact flexible glue sets up on the angle of exhibition through injection moulding. The utility model discloses an electric tool sets up the contact flexible glue on the position of the exhibition angle and that the battery package clearance is minimum, and the contact flexible glue keeps apart the exhibition angle of casing and the casing of battery package, and the material of contact flexible glue and battery package casing is different, also is difficult for producing the friction weld bonding between contact flexible glue and the battery package casing to the problem that the battery package can't be dismantled from the casing has been avoided.

Description

Electric tool

Technical Field

The utility model relates to an electric tool.

Background

In the electric tool with large vibration, when severe vibration is generated in work, because the shell of the battery pack and the shell of the electric tool are made of similar materials, the contact area of the shell of the battery pack and the spread angle of the shell can generate an effect similar to friction welding due to high-frequency vibration, so that the shell of the battery pack and the spread angle of the shell are fused and bonded, and the battery pack cannot be detached from the shell after bonding, thereby affecting the normal use of the electric tool.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an electric tool that can prevent casing and battery package casing melting bonding under high frequency vibrations.

To achieve the purpose, the utility model adopts the following technical proposal:

the utility model provides an electric tool, includes the casing, the casing includes the angle of expansion, the angle of expansion is used for installing the battery package the angle of expansion with be provided with on the position that the battery package clearance is minimum be used for with the contact flexible glue of battery package contact, the contact flexible glue through injection moulding set up in on the angle of expansion.

In one embodiment, the length direction of the battery pack is arranged in line, parallel, perpendicular or inclined with respect to the axis of the motor inside the housing.

In one embodiment, the soft contact glue is arranged on the part of the spread angle opposite to the two sides of the battery pack in the length direction, on the part of the spread angle opposite to the limiting end part of the battery pack in the length direction and/or on the part of the spread angle for locking with the battery pack.

In a specific embodiment, casing flexible glue is arranged on the outer surface of the casing through injection molding, the casing is arranged, the part of the casing flexible glue is communicated with the part of the spread angle contact flexible glue, and the casing flexible glue and the contact flexible glue are integrated into a whole.

In a specific embodiment, the part of the casing where the soft rubber of the casing is arranged is communicated with the part of the spread angle where the soft rubber is arranged, through a communication channel arranged inside the casing.

In a specific embodiment, a first accommodating groove for accommodating the soft contact glue is formed in the spread angle, and a second accommodating groove for accommodating the soft contact glue is formed in the casing.

In one embodiment, the housing further comprises a housing main body, and the housing main body is connected with the flare angle through a shock absorbing member.

In one embodiment, the shock absorbing member is connected with the housing main body and the extension angle through a screw, a clamping and/or an adhesion.

In one embodiment, the angle of spread is made of a different material than the housing of the battery pack.

In a specific embodiment, the contact flexible glue is connected with an integrally injection-molded positioning block, the extension angle is provided with a positioning groove, the positioning block is accommodated in the positioning groove, and the size of the notch of the positioning groove is smaller than the maximum size of the positioning block.

The utility model has the advantages as follows:

the utility model discloses an electric tool sets up the contact flexible glue on the position of the exhibition angle and that the battery package clearance is minimum, and the contact flexible glue keeps apart the exhibition angle of casing and the casing of battery package, and the material of contact flexible glue and battery package casing is different, also is difficult for producing the friction weld bonding between contact flexible glue and the battery package casing to the problem that the battery package can't be dismantled from the casing has been avoided.

Drawings

Fig. 1 is a schematic structural view of an electric tool with a battery pack inserted horizontally according to an embodiment of the present invention;

fig. 2 is a second schematic structural view of the electric tool with the battery pack inserted horizontally according to the embodiment of the present invention;

FIG. 3 is an enlarged view of a portion of FIG. 2 at A;

fig. 4 is a third schematic structural view of the electric tool with the battery pack inserted horizontally according to the embodiment of the present invention;

FIG. 5 is a cross-sectional view taken along line B-B of FIG. 4;

FIG. 6 is an enlarged view of a portion of FIG. 5 at C;

FIG. 7 is a schematic view of the battery pack of FIG. 1 with the battery pack removed;

FIG. 8 is a cross-sectional view of FIG. 7;

FIG. 9 is an enlarged view of a portion of FIG. 8 at D;

fig. 10 is a schematic structural view of an electric tool with a battery pack vertically inserted according to an embodiment of the present invention;

fig. 11 is a partial enlarged view at E in fig. 10;

fig. 12 is a schematic structural view of an electric tool with a battery pack inserted obliquely according to an embodiment of the present invention;

fig. 13 is a partial enlarged view at F in fig. 12.

Reference numerals:

100. an electric tool; 200. a battery pack;

210. a locking member; 220. a length direction limiting end part;

110. a housing; 120. a motor;

111. spreading an angle; 112. a case main body; 113. contacting the soft rubber; 114. shell soft glue; 115. a communication channel; 116. a locking groove;

121. a motor shaft;

1131. a first positioning block.

Detailed Description

The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. The terms "first," "second," "third," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

The present invention provides an electric tool, which can be but is not limited to a tool with large vibration during working, such as a reciprocating tool like a reciprocating saw or an electric hammer, or a garden tool like an impact tool, an oscillation tool or a grass trimmer.

As shown in fig. 1 to 9, the power tool 100 includes a housing 110, the housing 110 includes a housing main body 112 and an angle of spread 111 connected to each other, the angle of spread 111 may be, but is not limited to, located at an end of the housing main body 112, wherein the housing main body 112 is mainly used for accommodating the motor 120 and the like, and the angle of spread 111 is used for installing the battery pack 200.

In order to solve the problem that the housing 110 of the power tool 100 and the housing of the battery pack 200 are easily melted and bonded under high frequency vibration in the prior art, in the present embodiment, as shown in fig. 3, 6 and 9, the extended angle 111 is provided with a soft contact glue 113 for contacting the battery pack 200, and the soft contact glue 113 is disposed on the extended angle 111 by injection molding. Optionally, a first receiving groove for receiving the contact soft glue 113 is formed in the outer surface of the angle of spread 111, the first receiving groove defines a circumferential profile of the contact soft glue 113, and the first receiving groove is not indicated in fig. 9 because the contact soft glue 113 is already received in the first receiving groove.

The contact soft rubber 113 is arranged on the position, with the smallest gap, of the spread angle 111 and the battery pack 200, the spread angle 111 of the shell 110 is isolated from the shell of the battery pack 200 by the contact soft rubber 113, the contact soft rubber 113 is made of different materials from the shell of the battery pack 200, and friction welding bonding is not easily generated between the contact soft rubber 113 and the shell of the battery pack 200, so that the problem that the battery pack 200 cannot be detached from the shell 110 is solved. The specific material of the soft gel in the present embodiment is not limited, and for example, but not limited to, the soft gel may be plastic with relatively low surface hardness and different material from the case of the battery pack 200, such as PP (polypropylene), PE (polyethylene), PVC (polyvinyl chloride), silicone, EVA (ethylene-vinyl acetate copolymer), and the like.

In order to facilitate holding, as shown in fig. 6 and 9, in the present embodiment, a case soft rubber 114 is formed on an outer surface of a portion of the extension 111 that is not in contact with the battery pack 200 by injection molding. Optionally, a second receiving groove for receiving the casing soft rubber 114 is formed in the outer surface of the angle of spread 111, the second receiving groove defines a circumferential profile of the casing soft rubber 114, and the second receiving groove has received the casing soft rubber 114, so that the second receiving groove is not indicated in the figure.

Optionally, the portion of the spread angle 111 where the housing soft glue 114 is disposed is communicated with the portion of the spread angle 111 where the contact soft glue 113 is disposed, that is, the first accommodating groove is communicated with the second accommodating groove. The contact soft glue 113 and the housing soft glue 114 are both located on the outer surface of the angle of spread 111, and in order to avoid affecting the appearance of the housing 110, as shown in fig. 9, the first receiving groove and the second receiving groove are communicated through a communication channel 115 arranged inside the angle of spread 111. The first accommodating groove is communicated with the second accommodating groove, so that on one hand, the shell soft glue 114 in the second accommodating groove can be guided to the first accommodating groove to form the contact soft glue 113 in the injection molding process, and the processing is simplified; on the other hand, the size of the communicating channel 115 is usually smaller than the sizes of the contact soft glue 113 and the case soft glue 114, the contact soft glue 113 and the case soft glue 114 are integrally formed pieces and have a limiting function, and the combination of the contact soft glue 113 and the case soft glue 114 with the case 110 is firmer.

In other embodiments, the housing soft glue 114 integrally formed with the contact soft glue 113 may be located on both the extension angle 111 and the housing main body 112, or only on the housing main body 112. At this time, the second receiving groove straddles the extension 111 and the cabinet main body 112, or the second receiving groove is only located on the cabinet main body 112, and the communication passage 115 straddles the cabinet main body 112 and the extension 111.

Referring to fig. 9, in order to further prevent the contact flexible glue 113 from tilting, the contact flexible glue 113 is connected to a first positioning block 1131, the first positioning block 1131 and the contact flexible glue 113 are an integral injection molding part, the contact flexible glue 113 is accommodated in the first accommodating groove and is located on the outer surface of the angle of expansion 111, a first positioning groove is formed in the angle of expansion 111, the first positioning block 1131 is accommodated in the first positioning groove, a notch of the first positioning groove is communicated with the first accommodating groove, and the size of the notch of the first positioning groove is smaller than the maximum size of the first positioning block 1131, so that the first positioning block 1131 is limited, and the first positioning block 1131 is prevented from being separated from the first positioning groove, and the first positioning groove is not indicated in fig. 9 because the first positioning block 1131 is already accommodated in the first positioning groove. Optionally, the outer surface of the first positioning block 1131 is a spherical surface, the outer surface of the first positioning block 1131 is larger than a half of the spherical surface, and the shape of the inner surface of the first positioning groove is matched with the shape of the outer surface of the first positioning block 1131. The number and distribution of the first positioning blocks 1131 and the first positioning slots are not limited, and may be set according to specific needs.

In other embodiments, the casing soft glue 114 may also be connected to a second positioning block formed by integral injection molding, and the casing 110 is provided with a second positioning groove for accommodating and limiting the second positioning block. The specific structure of the second positioning block and the second positioning groove can be set with reference to the first positioning block 1131 and the first positioning groove.

The battery pack 200 is generally mounted on the electric power tool 100 in a lateral insertion, vertical insertion, or oblique insertion manner, and fig. 1 to 9 show that the battery pack is mounted on the electric power tool 100 in a lateral insertion manner, fig. 10 and 11 show that the battery pack is mounted on the electric power tool 100 in a vertical insertion manner, and fig. 12 and 13 show that the battery pack is mounted on the electric power tool 100 in an oblique insertion manner. Wherein the lateral insertion means that the length direction of the battery pack 200 is parallel to or collinear with the axis of the motor shaft 121 of the motor 120 in the housing 110 (the arrow P in fig. 5 indicates the length direction of the battery pack 200, and the arrow Q indicates the axis of the motor shaft 121); the vertical insertion means that the length direction of the battery pack 200 is perpendicular to the axis of the motor shaft 121; the oblique insertion means that the length direction of the battery pack 200 is inclined relative to the axis of the motor shaft 121 in the housing 110, that is, the length direction of the battery pack 200 forms an included angle with the axis of the motor shaft 121 in the housing 110, and the included angle is not 90 degrees.

Referring to fig. 2, 3 and 6 again, the battery pack 200 is generally rectangular, the surface of the battery pack 200 having the largest area and facing the angle of spread 111 is provided with a locking element 210 for locking with the angle of spread 111, the end of the battery pack 200 in the length direction is further provided with a length direction limiting end 220, the length direction limiting end 220 is for facing the end of the angle of spread 111, and the surface of the length direction limiting end 220 facing the angle of spread 111 may be, but is not limited to, an inclined surface.

The specific location of the portion of the spread angle 111 where the gap with the battery pack 200 is the smallest may be determined according to the specific situation. For example, in a normal assembly state, no matter which way the battery pack 200 is inserted into the extension 111, the distance between the extension 111 and each part of the battery pack 200 is substantially the same. However, some users have a habit of gripping the battery pack 200 when using the electric power tool, and thus, the contact area of the flare angle 111 and the battery pack 200 is more easily formed in the force application direction of the user. As shown in fig. 1 to 9, when the battery pack 200 is mounted on the electric power tool 100 in a lateral insertion manner, the minimum gap between the extension 111 and the housing of the battery pack 200 is generally a portion of the extension 111 opposite to the longitudinal end 220 of the battery pack 200 and a portion of the extension 111 for locking with the battery pack 200 due to the force of the user. Therefore, when the battery pack 200 is mounted on the electric tool 100 in a lateral insertion manner, it is preferable that, as shown in fig. 3, 6 and 9, the contact soft glue 113 is provided at least one of a portion of the spread angle 111 for opposing the lengthwise direction stopper end 220 of the battery pack 200 and a portion of the spread angle 111 for locking with the battery pack 200, wherein only the locking groove 116 for engaging with the locking element 210 of the battery pack 200 is shown in fig. 9, and the contact soft glue 113 on the groove wall of the locking groove 116 is not shown.

As shown in fig. 10 and 11, when the battery pack 200 is mounted on the electric power tool 100 in the vertical insertion manner, the minimum clearance between the extension 111 and the case of the battery pack 200 is usually at the portion of the extension 111 facing both sides in the longitudinal direction of the battery pack 200 and at the portion of the extension 111 facing the longitudinal direction stopper end 220 of the battery pack 200 due to the force of the user. Therefore, when the battery pack 200 is mounted on the electric power tool 100 in the vertical insertion manner, the soft contact adhesive 113 is provided at least one of a portion of the extended angle 111 that faces the inclined surface of the longitudinal direction stopper end 220 of the battery pack 200 and portions of the extended angle 111 that face both sides in the longitudinal direction of the battery pack 200.

As shown in fig. 12 and 13, when the battery pack 200 is mounted on the electric power tool 100 in the obliquely inserted manner, it is preferable that the contact soft rubber 113 is provided at least one of a portion of the spread angle 111 facing the longitudinal direction stopper end 220 of the battery pack 200, a portion of the spread angle 111 for locking with the battery pack 200, and portions of the spread angle 111 facing both sides in the longitudinal direction of the battery pack 200, and fig. 13 shows only the contact soft rubber 113 at the portion of the spread angle 111 facing the longitudinal direction stopper end 220 of the battery pack 200 and at the portions of the spread angle 111 facing both sides in the longitudinal direction of the battery pack 200.

In other embodiments, the soft contact rubber 113 may be provided at a portion of the spread angle 111 where the gap with the battery pack 200 is smallest, at another portion of the spread angle 111 where the gap with the battery pack 200 is smaller, or at each portion of the spread angle 111 facing the battery pack 200, at a portion requiring dust prevention, or at a portion requiring shock absorption, as the case may be.

To further prevent the problem that the casing 110 and the case of the battery pack 200 are easily melt-bonded under high frequency vibration, the casing main body 112 and the angular spread 111 are connected by a damper (not shown) to reduce the vibration at the angular spread 111. Alternatively, the shock absorbing member may be made of rubber, but is not limited thereto. The damper is located between the cabinet main body 112 and the flare 111, and may be, but is not limited to, a ring shape. The shock absorbing members are connected with the machine shell main body 112 and the angle of expansion 111 through screw connection, clamping connection and/or bonding connection and the like.

Alternatively, the angle of expansion 111 and the housing of the battery pack 200 are made of different materials, and the chassis main body 112 and the housing of the battery pack 200 may be made of the same material, but are not limited to the same material. To further avoid fusion bonding when the corners 111 are in contact with the housing of the battery pack 200.

The technical principle of the present invention is described above with reference to specific embodiments. The description is made for the purpose of illustrating the principles of the invention and should not be construed in any way as limiting the scope of the invention. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without any inventive effort, which would fall within the scope of the present invention.

Claims

1. The utility model provides an electric tool, its characterized in that, includes the casing, the casing includes the exhibition angle, the exhibition angle is used for installing the battery package the exhibition angle with be provided with on the position that the battery package clearance is minimum be used for with the contact flexible glue of battery package contact, the contact flexible glue through injection moulding set up in on the exhibition angle.

2. The power tool of claim 1, wherein the battery pack has a length direction that is collinear, parallel, perpendicular, or oblique with respect to an axis of a motor shaft of the motor within the housing.

3. The electric tool according to claim 2, wherein the soft contact adhesive is provided at a portion of the angle of spread opposite to both sides in a length direction of the battery pack, at a portion of the angle of spread opposite to a length direction limit end portion of the battery pack, and/or at a portion of the angle of spread for locking with the battery pack.

4. The electric tool according to claim 1, wherein a casing soft rubber is arranged on the outer surface of the casing through injection molding, a part of the casing where the casing soft rubber is arranged is communicated with a part of the spread angle where the contact soft rubber is arranged, and the casing soft rubber and the contact soft rubber are integrally formed.

5. The electric tool as claimed in claim 4, wherein the portion of the housing where the soft rubber of the housing is disposed is communicated with the portion of the spread angle where the soft rubber is disposed through a communication channel disposed inside the housing.

6. The power tool of claim 4, wherein the angle of extension is provided with a first accommodating groove for accommodating the soft contact glue, and the housing is provided with a second accommodating groove for accommodating the soft contact glue.

7. The power tool of claim 1, wherein the housing further comprises a housing body, the housing body and the flare being connected by a damper.

8. The power tool of claim 7, wherein the shock absorbing member is connected to the housing body and the extension by a screw, a snap and/or an adhesive.

9. The power tool of any one of claims 1 to 8, wherein the angle of spread is made of a different material than the housing of the battery pack.

10. The power tool of any one of claims 1 to 8, wherein the contact soft rubber is connected with an integrally injection-molded positioning block, a positioning groove is formed in the spread angle, the positioning block is accommodated in the positioning groove, and the size of a notch of the positioning groove is smaller than the maximum size of the positioning block.