JP2014229511A - Battery pack for electric tool - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the information of a user about a battery pack for electric tool so that it can be discriminated simply by the appearance.SOLUTION: A case 12 is provided with a cover member 40 detachably. Since the information about the coloring, hue pattern (color pattern), shape pattern, and a user using by attaching to the apparatus body by the material feeling, or the like, is placed on the cover member 40, the information of a user about this battery pack 10 can be discriminated simply by the appearance. An aperture 411 is opened so that the lower surface 121 of a lower case 13, becoming the lower surface of the battery pack 10, is exposed to the outside. Consequently, when a display seal (not shown) is stuck to the lower surface 121 of a lower case 13, the display seal (not shown) can be exposed to the outside by the aperture 411 of the cover member 40, without being inhibited.

Description

  The present invention relates to a battery pack for an electric tool that can be attached to and detached from an apparatus main body such as a tool main body or a charger of the electric tool.

  In recent power tools, a battery pack for a power tool that is a rechargeable battery is used as a power source. This battery pack for electric tools is comprised so that attachment or detachment with respect to the tool main body of an electric tool is possible. After the power tool battery pack is used as a power source for the power tool, it is removed from the tool body and charged by a charger. The battery pack for the electric tool charged by the charger is used by being attached to the tool body again as a power source of the electric tool (see, for example, Patent Document 1). In addition, the tool main body and the charger to which the battery pack for the electric tool is attached are hereinafter collectively referred to as an apparatus main body. This battery pack for electric tools includes an outline, a case, a battery cell, and a circuit board that performs control related to charging and discharging of the battery cell. This case functions as a housing that houses battery cells and the like, and also functions as an exterior of the power tool battery pack itself.

Published in April 2012 Makita General Catalog (BL1430 page)

  By the way, normally, user information, such as an owner, regarding the electric tool battery pack is not displayed on the electric tool battery pack. For this reason, if the battery pack for power tools is removed from the main unit and placed on a desk or the like alone, a person other than the owner will mistake it for his / her own property, May take the battery pack for power tools to somewhere. In order to prevent such a situation, it is desirable that user information such as an owner regarding the power tool battery pack is displayed on the power tool battery pack. Furthermore, it is desirable that the user information such as the owner is provided in an easy-to-understand manner so that it can be easily discriminated only by the appearance.

  The present invention has been made in view of such circumstances, and the problem to be solved by the present invention is for a power tool that is attachable to and detachable from a tool body of a power tool or a device body such as a charger. The battery pack is provided so that the user's information regarding the power tool battery pack can be easily discriminated only by its appearance.

  In solving the above-described problems, the battery pack for an electric tool according to the present invention takes the following means. That is, the battery pack for an electric tool according to the first aspect of the present invention is an electric tool battery pack that is attachable to and detachable from an apparatus main body such as a tool main body or a charger, and includes a battery cell and the battery. A case for accommodating the cell, and the case is provided with an identification information member in a detachable manner. The identification information member is, for example, a member on which “information about a user who is attached to the device main body and used” is placed. In addition, the “user information” includes information on the location time of the person (including both groups and individuals) who owns the power tool battery pack, and the person who uses the power tool battery pack (group). It includes various information such as information on location time etc.). According to the battery pack for an electric tool according to the first aspect of the present invention, since the identification information member is detachably provided on the case, the user's information related to the battery pack for the electric tool can be easily determined only by the appearance. can do.

  The battery pack for electric tools which concerns on 2nd invention is a battery pack for electric tools made detachable with respect to apparatus main bodies, such as a tool main body and a charger, Comprising: A battery cell and the case which accommodates the said battery cell And a protective member for protecting the case is detachably provided on the case. According to the battery pack for an electric tool according to the second aspect of the present invention, since the case is provided with the protective member that protects the case so as to be detachable, even when the case hits the case from the outside, this contact is protected. It can be received by the member. Therefore, the case can be protected by the protective member. When the protective member is damaged, the damaged protective member can be removed from the case and a new protective member can be attached to the case.

It is an upper external perspective view showing an upper external perspective view of the battery pack of the first embodiment. FIG. 2 is a lower external perspective view showing a lower external perspective view of the battery pack of FIG. 1. FIG. 2 is an upper perspective view showing a battery pack main body and a cover member in FIG. 1 separately. FIG. 3 is a lower perspective view showing the battery pack main body and the cover member of FIG. 2 separately. It is a side view which shows the battery pack of FIG. 1 by a side view. It is a rear view which shows the battery pack of FIG. 1 by a rear view. It is a bottom view which shows the battery pack of FIG. 1 by a bottom view. It is sectional drawing which shows the (VIII)-(VIII) cross-section arrow in FIG. It is sectional drawing which shows the (IX)-(IX) cross-section arrow in FIG. It is sectional drawing which shows the (X)-(X) cross-section arrow in FIG. It is an external appearance perspective view which shows the upper side external appearance perspective view of the battery pack of 2nd Embodiment. It is an external appearance perspective view which shows the lower side external appearance perspective view of the battery pack of FIG. FIG. 12 is an upper perspective view showing the battery pack main body and the cover member of FIG. 11 separately. FIG. 13 is a lower perspective view showing the battery pack main body and the cover member of FIG. 12 separately. It is a bottom view which shows the battery pack of FIG. 11 by a bottom view. It is sectional drawing which shows the (XVI)-(XVI) cross-section arrow in FIG. It is sectional drawing which shows the (XVII)-(XVII) cross-section arrow in FIG. It is an external appearance perspective view which shows the lower side external appearance perspective view of the battery pack of 3rd Embodiment. FIG. 19 is a lower perspective view showing the battery pack main body and the cover member of FIG. 18 separately. It is sectional drawing which shows the (XX)-(XX) cross-section arrow in FIG. It is sectional drawing which shows the (XXI)-(XXI) cross-section arrow in FIG. It is an external appearance perspective view which shows the lower side external appearance perspective view of the battery pack of 4th Embodiment. FIG. 23 is a lower perspective view showing the battery pack main body and the cover member of FIG. 22 separately. It is sectional drawing which shows the (XXIV)-(XXIV) sectional arrow in FIG. It is sectional drawing which shows the (XXV)-(XXV) cross-section arrow in FIG. It is an external appearance perspective view which shows the upper side external appearance perspective view of the battery pack of 5th Embodiment. FIG. 27 is an external perspective view showing a lower external perspective view of the battery pack of FIG. 26. FIG. 27 is an upper exploded perspective view showing the battery pack of FIG. 26 in an exploded manner. FIG. 28 is a lower exploded perspective view showing the battery pack of FIG. 27 in an exploded manner. It is sectional drawing which shows the (XXX)-(XXX) cross-section arrow in FIG. It is an external appearance perspective view which shows the upper side external appearance perspective view of the battery pack of 6th Embodiment. FIG. 32 is an upper exploded perspective view of the battery pack of FIG. 31 with the protector member removed. FIG. 32 is a lower exploded perspective view of the battery pack of FIG. 31 with the protector member removed. FIG. 32 is a cross-sectional view showing an (XXXIV)-(XXXIV) cross-sectional arrow in FIG. 31. FIG. 32 is a cross-sectional view showing a (XXXV)-(XXXV) cross-sectional arrow in FIG. 31. It is an upper side exploded perspective view which removes and shows a protector member of a 7th embodiment. It is sectional drawing which shows the (XXXVII)-(XXXVII) cross-section arrow in FIG. It is an external appearance perspective view which shows the upper side external appearance perspective view of the battery pack of 8th Embodiment. It is an upper side exploded perspective view which removes and shows the protector member of the battery pack of FIG. It is sectional drawing which shows the (XXXX)-(XXXX) sectional arrow in FIG. It is sectional drawing which shows the (XXXXI)-(XXXXI) cross-section arrow in FIG.

[First Embodiment]
Below, 1st Embodiment for implementing the battery pack for electric tools which concerns on this invention is described, referring FIGS. 1-10. The code | symbol 10 shown in FIG. 1 is a battery pack equivalent to the battery pack for electric tools which concerns on this invention. The battery pack 10 is a rechargeable battery configured to be detachable by sliding on a tool body of various electric tools represented by an electric driver, for example. The battery pack 10 attached to the tool body functions as a power source for the electric tool. For this reason, when the charge amount decreases, the battery pack 10 is removed from the tool body and attached to the charger to be charged. The battery pack 10 that has been charged by this charger is mounted on the tool body again as a drive power source for the electric tool. These tool body and charger correspond to the device body according to the present invention.
Note that the front side of the battery pack 10 defined in the drawing is set in a direction based on the direction in which the battery pack 10 is slid. Moreover, the upper side of the battery pack 10 prescribed | regulated by drawing is set in the direction based on the direction in which this battery pack 10 is mounted to a tool main body (electric tool) or a charger not shown.
FIG. 1 is an upper external perspective view showing an upper external perspective view of the battery pack 10 of the first embodiment. FIG. 2 is a lower external perspective view showing a lower external perspective view of the battery pack 10 of FIG. 1. In contrast, FIG. 3 is an upper perspective view showing the battery pack body 11 and the cover member 40 of FIG. 1 separately. 4 is a lower perspective view showing the battery pack body 11 and the cover member 40 of FIG. 2 separately. That is, as shown in FIGS. 1 to 4, the battery pack 10 generally includes a battery pack body 11 and a cover member 40 that can be attached to and detached from the battery pack body 11. Moreover, the battery pack main body 11 generally includes a case 12 and a battery main body 30 (see FIG. 8 and the like) installed inside the case 12. The case 12 functions as a casing that houses the battery body 30 while forming the exterior of the battery pack body 11. The case 12 has an upper and lower split structure formed by combining the lower case 13 and the upper case 15 in the vertical direction. The combined lower case 13 and upper case 15 are held in a combined state via screw members 28. The case 12 formed in this way forms a box-shaped space in which the battery main body 30 can be installed, and the upper case 15 is attached in a state where the battery main body 30 is accommodated in the lower case 13. Screwed together. That is, the screw member 28 is screwed to the screw boss 16 of the upper case 15 through the screw hole 141 of the lower case 13.

The upper case 15 forms an exterior on the connection side when the battery pack main body 11 is slidably mounted on the apparatus main body (tool main body or charger of an electric tool). In the middle portion of the upper case 15, slide guide portions 171 and 172 that make a pair on the right and left are provided. The slide guide parts 171 and 172 guide the slide mounting of the battery pack 10 on the apparatus main body. For this reason, the slide guide portions 171 and 172 are formed in a flange shape projecting toward the right and left sides so as to extend in the front-rear direction in which the slide mounting is possible. Further, the upper case 15 is formed with a slit so as to be connectable to the charge / discharge terminal portions 181 and 182 of the battery body 30 inside. Further, the signal terminal connector 19 forming a part of the battery body 30 (see FIG. 8 and the like) is exposed from the upper case 15 to the outside.
Further, the upper case 15 is provided with a hook opening 201 and an operation opening 202. The hook opening 201 has an opening shape that allows the hook portion 261 of the male hook mechanism 25 to protrude outward. The hook portion 261 protruding from the hook opening 201 is engaged with an external tool body (electric tool) (not shown) or a female portion of the charger. The operation opening portion 202 has an opening shape that allows the hook portion 261 of the male hook mechanism 25 to protrude to the outside. The operation unit 262 that can be operated from the operation opening 202 allows the user to release the engagement of the hook 261 that protrudes to the outside from the hook opening 201.
The male hook mechanism 25 is formed in a structure that is detachably locked to the device main body when the battery pack 10 is slid and attached to the device main body. Specifically, as shown in FIG. 8 and the like, the male hook mechanism 25 includes a hook-shaped structure 26 having a hook shape and a finger hook shape, and an urging force that biases the hook-shaped structure 26 in the locking direction. And a spring 27. The hook-shaped structure 26 includes the hook part 261 and the operation part 262 described above. The male hook mechanism 25 configured as described above is configured to automatically engage the hook portion 261 with the female portion of the device main body by the biasing force of the biasing spring 27. Further, when the operation portion 262 is pulled down against the biasing force of the biasing spring 27, the hook portion 261 can be unlocked from the female portion of the device main body, and the battery pack 10 is slid and removed from the device main body. be able to.

FIG. 5 is a side view showing the battery pack 10 of FIG. 1 in a side view. FIG. 6 is a rear view showing the battery pack 10 of FIG. 1 in a rear view. FIG. 7 is a bottom view showing the battery pack 10 of FIG. 1 in a bottom view. FIG. 8 is a cross-sectional view taken along the line (VIII)-(VIII) in FIG. FIG. 9 is a cross-sectional view taken along the (IX)-(IX) cross-section in FIG. 10 is a cross-sectional view taken along the (X)-(X) cross-section in FIG.
The battery main body 30 installed inside the case 12 has various functions as the battery pack 10 serving as a rechargeable battery. The battery body 30 includes a battery cell unit 31 and a control board unit 35 as shown in FIG. The battery cell unit 31 includes ten battery cells 32 that are arranged in two stages on the top and bottom, and a lead plate 33 that electrically connects the electrodes of the battery cells 32. Ten battery cells 32 are held by a cell holder 34.
The control board unit 35 is disposed on the upper side of the battery cell unit 31 and includes a circuit board 36 that is equipped with a microcomputer and performs various control processes. The circuit board 36 monitors the state of the battery cell 32 via a lead plate 33 (see FIG. 10) connected to the electrode of the battery cell 32. The circuit board 36 performs control related to charging / discharging of the battery cell 32 by a microcomputer and other electric material components which are appropriately mounted.
Charge / discharge terminal portions 181 and 182 and a signal terminal connector 19 are provided on the upper surface of the circuit board 36. These charge / discharge terminal portions 181 and 182 and the signal terminal connector 19 are configured as connection terminals connected to terminals on the apparatus main body side. That is, the charge / discharge terminal portions 181 and 182 are terminals that are electrically connected to the charger. The charge / discharge terminal portions 181 and 182 function as discharge terminals when connected to the tool main body (device main body) as a power source, and are connected to the charger (device main body) for charging. Function as a charging terminal. For this reason, the charge / discharge terminal portions 181 and 182 include a plus connection terminal 181 connected to the plus terminal on the device body side and a minus connection terminal 182 connected to the minus terminal on the device body side. On the other hand, the signal terminal connector 19 is configured as a terminal connector through which mutual information is transmitted to and received from the device body when the battery pack 10 is attached to the device body. The transmitted / received signal is information based on the control process of the circuit board 36.

The cover member 40 shown in FIGS. 3 and 4 is attached to the battery pack main body 11 configured as described above. The cover member 40 is formed of a material that is softer than the material of the case 12. That is, the cover member 40 corresponds to the protective member according to the present invention. The cover member 40 is formed of an elastically deformable material. For this reason, the cover member 40 can be attached to and detached from the case 12 by being elastically deformed. That is, the cover member 40 is attached to the lower part of the battery pack body 11 by being elastically deformed, and can be removed from the lower part of the battery pack body 11 by being elastically deformed. That is, the cover member 40 can be easily attached to and detached from the case 12 using its own elasticity.
The cover member 40 corresponds to an identification information member according to the present invention. That is, the battery pack body 11 with the cover member 40 attached can be visually distinguished from the battery pack body 11 without the cover member 40 attached. Furthermore, the battery pack body 11 with the cover member 40 colored with one color (for example, blue) is attached to the battery pack body 11 with the cover member 40 colored with another color (for example, red). And can be identified visually. Specifically, the cover member 40 is formed by coloring the above-described elastically deformable material with a color selected from a plurality of colors. As the color of the cover member 40, for example, an appropriate color such as red, orange, yellow, green, blue, indigo, and purple can be applied. In addition, as a requirement for such visual recognition, it is sufficient that visual recognition is possible if the level is visually recognizable. That is, various visual appearances such as a color pattern (color pattern), a shape pattern (shape pattern), and a texture can be selected as requirements for visual recognition. As the color pattern and shape pattern, various known patterns such as a check pattern, a border pattern, and a dot pattern can be selected. Note that the plurality of types of colors may be colors having appropriate transparency such as transparency and translucency, and colorlessness that only has transparency is set as a part of the plurality of types of colors. It may be a thing.

Therefore, even when a plurality of battery pack main bodies 11 are placed, the user can determine at a glance that the battery pack main body 11 is his / her own battery pack main body 11. . That is, the cover member 40 that can be discriminated in this way is user information. In addition, as this user's information, the information regarding the place time etc. of the person (including group and individual) who owns this battery pack 10, and the person (including both group and individual) who use this battery pack 10 Various information, such as information about the location time of the For this reason, according to such various information, the cover member 40 is divided and molded by a colored color, a stamp formed appropriately, or the like. In other words, the cover member 40 is placed with information on a user who is a user who uses the device main body to which the battery pack 10 is attached.
Next, the shape of the cover member 40 molded in this way will be described. The cover member 40 is formed by molding an appropriate soft resin that can be elastically deformed as described above. The cover member 40 is formed corresponding to the shape of the lower part of the battery pack body 11 to be mounted. That is, as shown in FIGS. 1 and 2, the cover member 40 is roughly composed of a lower surface body 41, a front end edge 43, a rear end edge 44, a right end edge 45, and a left end edge. 46 is integrally formed. The lower surface body 41 is formed corresponding to the shape of the lower surface 121 of the lower case 13. An opening 411 having an opening shape is provided in the middle portion of the lower surface body 41 as shown in the figure. For this reason, this lower surface body 41 is formed only by the peripheral edge support part 412 which makes the periphery of the opening part 411 which makes this opening shape. The peripheral edge support portion 412 has a shape that protrudes inward from a portion facing the edge of the lower surface 121 of the lower case 13. When the battery pack 10 to which the cover member 40 is attached is placed, the peripheral support portion 412 comes into surface contact with the placement surface, thereby supporting the battery pack 10 via the cover member 40. . That is, the peripheral edge support portion 412 of the cover member 40 forms a support bottom surface on which the battery pack 10 is supported when the battery pack 10 is placed. For this reason, the periphery support part 412 of the cover member 40 extended along the periphery of the lower surface 121 of the battery pack 10 is formed as a support bottom surface (outer peripheral surface forming a lower surface) that is flush with each other. The inner peripheral surface that forms the upper side surface of the cover member 40 is provided with an appropriate inclined surface shape and an appropriate step shape corresponding to the outer peripheral shape of the lower case 13.

Further, four drain holes 413 are provided in the lower surface body 41 of the cover member 40. The four drain holes 413 are provided corresponding to the drain holes 142 provided in the lower case 13 of the battery pack body 11. That is, the lower surface body 41 of the cover member 40 is provided with drainage holes 413 penetrating vertically at locations corresponding to the drainage holes 142 of the lower case 13. That is, in the lower surface body 41 of the cover member 40, the water drained through the drain hole 142 of the lower case 13 is directed from the inner peripheral surface side to the outer peripheral surface side of the cover member 40 through the drain hole 413 penetrating vertically. It is designed to drain. Further, three drain holes 442 are provided in the rear end edge portion 44 of the cover member 40. These three drain holes 442 are provided corresponding to drain holes 143 (see FIG. 7) provided at the lower rear end of the lower case 13. That is, at the rear end edge portion 44 of the cover member 40, the water applied to the male hook mechanism 25 is drained from the inner peripheral surface side to the outer peripheral surface side of the cover member 40 through the drain holes 442 penetrating vertically. It is like that. Note that dust, sand, and the like can be discharged from the three drain holes 442.
Further, the front side edge portion 43, the rear side edge portion 44, the right side edge portion 45, and the left side edge portion 46 are arranged so that the four side edge portions of the lower surface body 41 formed in this way are on the upper side. It is formed so as to protrude. The corner portions between the front end edge 43 and the right end edge 45 are formed in a continuous shape. Further, the corner portion between the right side edge portion 45 and the rear side edge portion 44 is also formed in a connecting shape that is continuous with each other. Further, the corner portion between the rear end edge portion 44 and the left end edge portion 46 is also formed in a connecting shape that is continuous with each other. Further, the corner portion between the left side edge portion 46 and the front side edge portion 43 is also formed in a connecting shape that is continuous with each other. As described above, the front end edge 43, the rear end edge 44, the right end edge 45, and the left end edge 46 are connected so that the lower part of the battery pack body 11 is in contact with the four sides. Is formed.
In addition, fitting protrusions 451 and 461 are provided on the upper end edges of the right end edge 45 and the left end edge 46, respectively. Specifically, the right fitting ridge portion 451 is formed as a ridge along the upper edge of the right end edge portion 45. The ridge of the right fitting ridge 451 is a ridge protruding toward the left side. The ridges of the right fitting ridges 451 extend along the front-rear direction in which the right end edge 45 extends. Further, the left fitting protrusion 461 provided at the upper end edge with the left end edge 46 has a symmetrical structure with the right end edge 45 formed in this way. That is, the left fitting protruding ridge 461 is formed as a protruding line along the upper edge of the left end edge 46. The protrusion of the left fitting protrusion 461 extends along the front-rear direction in which the left end edge 46 extends. That is, the right fitting protrusion 451 and the left fitting protrusion 461 are provided so as to face each other along the inner peripheral edges of the right and left sides of the cover member 40. The fitting protrusions 451 and 461 are provided at the upper end portions of the right end edge portion 45 and the left end edge portion 46, respectively, so that the upper end portion of the cover member 40 can be held tightly. Further, it is possible to more effectively prevent the upper end portion of the cover member 40 from being bent due to elastic deformation.

Further, although slightly, the right-side fitting ridge portion 451 and the left-side fitting ridge portion 461 are extended so as to be hooked on the front side edge portion 43 and the rear side edge portion 44. That is, the front end edge 43 is also provided with a front fitting protrusion 431 in which the right fitting protrusion 451 and the left fitting protrusion 461 are slightly extended. The front fitting protrusion 431 is connected to the right fitting protrusion 451 and the left fitting protrusion 461, and is divided with respect to an intermediate portion of the front end edge 43. For this reason, the front fitting protrusion 431 is provided only in the vicinity of the corners on both the right and left sides on the front side. Similarly, the rear end edge 44 is also provided with a rear fitting protrusion 441 in which the right fitting protrusion 451 and the left fitting protrusion 461 are slightly extended. ing. The rear fitting protrusion 441 is also continuous with the right fitting protrusion 451 and the left fitting protrusion 461, and is divided at an intermediate portion of the rear end edge 44. For this reason, the rear-side fitting ridges 441 are provided only in the vicinity of the corners on the right and left sides of the rear side.
By the way, the right side fitting convex part 451 and the left side fitting convex part 461 provided in the above-described cover member 40 are fitted in the fitting concave part 80 provided in the lower case 13. The fitting recess 80 is formed to have a concave shape in which the right fitting protrusion 451 and the left fitting protrusion 461 can be fitted. That is, the fitting recess 80 is an outer periphery of the lower case 13 where the right and left fitting protrusions 451 and 461 are opposed to each other when the cover member 40 is attached to the battery pack body 11. It is provided on the surface. Specifically, a right fitting recess 85 as a fitting recess 80 is provided on the outer peripheral surface of the right lower case 13. Further, a left fitting recess 86 as a fitting recess 80 is provided on the outer peripheral surface of the left lower case 13. Similarly, the lower case 13 is provided with a front fitting recess 83 and a rear fitting recess 84 for fitting the front fitting protrusion 431 and the rear fitting protrusion 441 described above. It has been. The front fitting recess 83 and the rear fitting recess 84 are set only in the vicinity of the corners on both the right and left sides of the outer peripheral surface of the lower case 13. In addition, the holding to the lower case 13 of the cover member 40 has a known appropriate structure such as an adhesive structure or an engagement structure in addition to the fitting structure such as the above-described fitting protrusions 451 and 461. You can choose.

According to the battery pack 10 of the above-described embodiment, the following operational effects can be achieved. That is, according to the battery pack 10 described above, the cover member 40 (identification information member) is detachably provided on the case 12. Since this cover member 40 is loaded with information on a user who wears it on the apparatus main body by coloring, color pattern (color pattern), shape pattern (shape pattern), texture, etc. The user information regarding the pack 10 can be easily discriminated only by its appearance. Note that the opening 411 is opened such that the lower surface 121 of the lower case 13 that is the lower surface of the battery pack 10 is exposed to the outside. For this reason, when a display seal (not shown) is affixed to the lower surface 121 of the lower case 13, the display seal (not shown) is not blocked by the opening 411 of the cover member 40. Can be exposed. Therefore, a person who intends to use the battery pack 10 can easily visually check the display sticker attached in this way, and can recognize it as information on the user or the like. In addition, the location where the display sticker is attached in this way is formed in a shape that is recessed by one step. When the display sticker is attached in such a depressed shape, even if the lower surface of the battery pack 10 is rubbed, the display sticker is not applied with a large rubbing force, and the display sticker is prevented from peeling off. Can do. In addition, about this cover member 40 itself, it may be formed so that a name may be stamped so that it may have a function which can identify itself.
Further, according to the battery pack 10 described above, the case 12 is provided with the cover member 40 (protective member) made of a material softer than the material of the case 12 so as to be detachable. Even in this case, this hit can be received by the cover member 40 made of a material softer than the material of the case 12. Therefore, the battery pack body 11 can be protected by the cover member 40. When the cover member 40 is damaged, the damaged cover member 40 can be removed from the case 12, and a new cover member 40 can be attached to the case 12, so that the appearance can be maintained.

[Second Embodiment]
Next, a battery pack 10A of a second embodiment, which is a modification of the battery pack 10 of the first embodiment described above, will be described with reference to FIGS. Note that the battery pack 10A of the second embodiment described below is different from the above-described battery pack 10 of the first embodiment in the configuration relating to the cover member 40A. Therefore, in the following, the configuration related to the cover member 40A will be mainly described, and the configuration other than the cover member 40A is diverted using the reference numerals used in the description of the first embodiment described above. The explanation will be omitted. In addition, in order to divert such a code, the same code as the above code is attached, or “A” is added to the end of the above code corresponding to the battery pack 10A of the second embodiment. It includes things to add.
That is, FIG. 11 is an external perspective view showing an upper external perspective view of the battery pack 10A of the second embodiment. 12 is an external perspective view showing a lower external perspective view of the battery pack 10A of FIG. FIG. 13 is an upper perspective view showing the battery pack main body 11A and the cover member 40A of FIG. 11 separately. 14 is a lower perspective view showing the battery pack main body 11A and the cover member 40A of FIG. 12 separately. FIG. 15 is a bottom view showing the battery pack 10A of FIG. 11 in a bottom view. 16 is a cross-sectional view showing the (XVI)-(XVI) cross-sectional view in FIG. 17 is a cross-sectional view taken along the (XVII)-(XVII) cross-section in FIG.
The cover member 40A according to the second embodiment is different in configuration from the cover member 40 according to the first embodiment described above in the following points. First, as a first point, the cover member 40A of the second embodiment is different from the cover member 40 of the first embodiment in the shape of the lower surface body 41A. That is, as shown in FIG. 14 and the like, the lower surface body 41A of the second embodiment has a connected shape in which the opening 411 is filled, compared with the lower surface body 41 of the first embodiment described above. It is formed. That is, the lower surface body 41 </ b> A of the second embodiment is formed over the entire surface so as to cover all of the one surface of the lower surface 121 of the lower case 13. For this reason, the opening 411 provided in the cover member 40 of the first embodiment is not provided in the lower surface body 41A of the second embodiment. Reference numerals 291 and 292 shown in FIG. 17 are screw members for integrating the battery pack main body 11A.

Further, as a second point, the cover member 40A of the second embodiment is different from the cover member 40 of the first embodiment, and a structure for attaching to the lower case 13 is provided on the lower surface body 41A. . That is, the lower surface body 41A of the second embodiment is provided with four fitting bosses 47A protruding upward as shown in FIG. The four fitting bosses 47A are formed integrally with the lower surface body 41A as a part of the lower surface body 41A. Note that the cover member 40A of the second embodiment is also formed of an elastically deformable material similar to the cover member 40 of the first embodiment described above. The four fitting bosses 47A of the second embodiment are provided with the same functional purpose as the fitting protrusions 451 and 461 of the first embodiment described above. That is, four fitting bosses 47A are provided at four positions at appropriate intervals on the upper surface side of the lower surface body 41A. The fitting boss 47A is fitted into fitting holes 83A, 84A, 85A, 86A provided on the lower surface of the lower case 13 described above. That is, the lower case 13 is provided with four fitting hole portions 83A, 84A, 85A, 86A corresponding to the four fitting bosses 47A thus provided. As described above, the cover member 40A is attached to the lower case 13 by fitting the four fitting bosses 47A into the four fitting hole portions 83A, 84A, 85A, 86A. At this time, when the four fitting bosses 47A are fitted into the four fitting holes 83A, 84A, 85A, 86A, they are elastically deformed. That is, the fitting boss 47A is fitted by being press-fitted into the fitting holes 83A, 84A, 85A, 86A. The positions at which the four fitting bosses 47A are provided are set between the arrays of the plurality of battery cells 32 described above. For this reason, it can suppress that the height of the up-down direction of battery pack 10A including the cover body 40 will become high.
According to the battery pack 10A of the second embodiment configured as described above, it is possible to achieve substantially the same operational effects as the operational effects achieved by the battery pack 10 of the first embodiment described above. The following effects can also be achieved. That is, according to the battery pack 10A of the second embodiment, since the arrangement range of the cover member 40A is larger than the arrangement range of the cover member 40 of the first embodiment, the cover member 40A The external appearance range for discriminating the battery pack 10A can be expanded. Therefore, according to the battery pack 10A of the second embodiment, the appearance discrimination function by the cover member 40A is further improved. Since the range of arrangement of the cover member 40A of the second embodiment is expanded, the range of protection of the battery pack body 11A by the cover member 40A can be expanded. Therefore, according to the battery pack 10A of the second embodiment, the protection function of the battery pack main body 11A by the cover member 40A can be further improved. Further, according to the battery pack 10A of the second embodiment, the lower surface body 41A is supported by the cover member 40A, so that bending due to elastic deformation of the lower surface body 41A can be suppressed. Further, when the cover member 40A is formed to have appropriate transparency such as transparent or translucent, the lower surface 121 of the lower case 13 can be seen through the lower surface body 41A.

[Third Embodiment]
Next, a battery pack 10B according to a third embodiment, which is a modification of the battery pack 10A according to the second embodiment described above, will be described with reference to FIGS. Note that the battery pack 10B of the third embodiment described below is different in configuration regarding the cover member 40B compared to the battery pack 10A of the second embodiment described above. Therefore, hereinafter, the configuration related to the cover member 40B will be mainly described, and the reference numerals used in the description of the first and second embodiments described above will be used for the configuration other than the cover member 40B. The description thereof will be omitted. In addition, in order to divert such a code, the same code as the above code is attached, or 'B' is added at the end of the above code corresponding to the battery pack 10B of the third embodiment. It includes things to add. That is, FIG. 18 is an external perspective view showing a lower external perspective view of the battery pack 10B of the third embodiment. FIG. 19 is a lower perspective view showing the battery pack main body 11B and the cover member 40B of FIG. 18 separately. 20 is a cross-sectional view taken along the (XX)-(XX) cross-section in FIG. 21 is a cross-sectional view taken along the (XXI)-(XXI) cross-section in FIG.
The cover member 40B according to the third embodiment is different in configuration from the cover member 40A according to the second embodiment described above in the following points. First, as a first point, the material of the cover member 40B according to the third embodiment is different from that of the cover member 40A according to the second embodiment. Specifically, a plastic resin having an appropriate hardness is selected as the material of the cover member 40B of the third embodiment. For this reason, since the cover member 40B of the third embodiment has rigidity compared to the cover member 40A of the second embodiment, the lower side via the screw member 48B forming a male screw. It is attached to the case 13. As shown in FIG. 19 and the like, the cover member 40B is provided with a screw insertion hole 47B for inserting the screw member 48B. The screw insertion holes 47B are provided at four locations at appropriate intervals on the lower surface body 41B. The four screw insertion holes 47B are formed as through holes that vertically penetrate the lower surface body 41B so that the screw member 48B can be inserted. The four screw members 48B inserted into the four screw insertion holes 47B formed in this way are formed into four female screw portions 83B, 84B, 85B (not shown for the rear right portion) of the lower case 13. Screwed. That is, four female screw portions 83B, 84B, 85B (not shown in the rear right portion) that form female threads, on the lower surface of the lower case 13, can be engaged with four screw members 48B that form male threads. Is provided. In addition, two notches 49B are provided in the front end edge 43B that forms the front of the cover member 40B. The two notches 49B provided at the front end edge 43B are formed so that screws can be inserted into the screw holes 141 provided at the front of the lower case 13. The position where the four screw members 48B are provided is set between the arrangement of the plurality of battery cells 32 described above. For this reason, it can suppress that the height of the up-down direction of battery pack 10B containing cover body 40B becomes high.
According to the battery pack 10B of the third embodiment configured as described above, it is possible to achieve substantially the same functions and effects as those provided by the battery pack 10A of the above-described second embodiment. The following effects can also be achieved. That is, according to the battery pack 10B of the third embodiment, the cover member 40B can be fixed to the battery pack body 11B via the screw member 48B. That is, once the screw member 48B is screwed, the cover member 40B can prevent the battery pack body 11B from being easily detached. Thus, according to the battery pack 10B of the third embodiment, since the cover member 40B forms a part of the battery pack 10B so as to be fixed integrally with the battery pack body 11, it is easily discriminated only by the appearance. The reliability of the user information regarding the battery pack 10 that can be made can be increased. Further, since the cover member 40B of the third embodiment has higher rigidity than the cover members 40 and 40A of the first and second embodiments described above, the first and second described above. It can be made harder to be scratched than the cover members 40, 40A of the second embodiment.

[Fourth Embodiment]
Next, a battery pack 10C of the fourth embodiment, which is a modification of the battery pack 10B of the above-described third embodiment, will be described with reference to FIGS. Note that the battery pack 10C of the fourth embodiment described below is different from the battery pack 10B of the third embodiment described above in the configuration related to the cover member 40C. For this reason, below, the structure regarding this cover member 40C is mainly demonstrated, and about the structure other than this cover member 40C, the code | symbol used in the description of above-mentioned 1st-3rd embodiment is diverted. The description thereof will be omitted. In addition, in order to use such a code, a code that is the same as the code described above is attached, or 'C' is added at the end of the code corresponding to the battery pack 10C of the fourth embodiment. It includes things to add. That is, FIG. 22 is an external perspective view showing a lower external perspective view of the battery pack 10C of the fourth embodiment. FIG. 23 is a lower perspective view showing the battery pack main body 11C and the cover member 40C of FIG. 22 separately. 24 is a cross-sectional view taken along the (XXIV)-(XXIV) cross-section in FIG. 25 is a cross-sectional view taken along the (XXV)-(XXV) cross-section in FIG.
The cover member 40C according to the fourth embodiment is set in substantially the same manner with respect to the molding material, etc., as compared with the cover member 40B according to the third embodiment described above, and differs in the arrangement range, etc. It is supposed to be. That is, as shown in FIG. 23 and the like, the cover member 40C according to the fourth embodiment is different from the cover member 40B according to the third embodiment described above in that the arrangement range is reduced. To do.
That is, even in the material of the cover member 40C of the fourth embodiment, a plastic resin having an appropriate hardness is selected in substantially the same manner as the cover member 40B of the third embodiment. That is, the cover member 40C of the fourth embodiment is also formed in a plate shape having appropriate rigidity and set to a thin plate thickness. Here, the cover member 40C of the fourth embodiment is arranged in the front-rear direction so that the front end portion and the rear end portion are clogged as compared with the cover member 40B of the third embodiment described above. The range is omitted. Specifically, the front end position and the rear end position of the cover member 40C are set so that the front side portion and the rear side portion of the lower case 13C are exposed to the outside. That is, the front end position of the cover member 40C is set to the rear side of the front end position of the lower case 13, and the rear end position of the cover member 40C is set to the front side of the rear end position of the lower case 13. ing. In this way, the front side portion and the rear side portion of the lower case 13C are exposed to the outside so as not to be covered by the cover member 40C.

Even in the cover member 40C of the fourth embodiment, it is attached to the lower case 13C via a screw member 48C in the same manner as the cover member 40B of the third embodiment. That is, as shown in FIG. 23 and the like, the cover member 40C is provided with a screw insertion hole 47C for inserting the screw member 48C. The screw insertion holes 47C are provided at four locations at appropriate intervals on the lower surface body 41C. The four screw insertion holes 47C are formed as through holes that vertically penetrate the lower surface body 41C so that the screw member 48C can be inserted. The four screw members 48C inserted into the four screw insertion holes 47C formed in this way are formed into four female screw portions 83C, 84C, 85C (not shown in the rear right portion) of the lower case 13. Screwed. That is, four female screw portions 83C, 84C, and 85C (not shown in the rear right portion) that form female threads can be screwed onto the lower surface of the lower case 13 so that four screw members 48C that form male threads can be screwed together. Is provided.
Further, the cover member 40C according to the fourth embodiment is provided so as not to protrude to the outside of the cover member 40C to be attached when the cover member 40C is attached to the lower case 13C. That is, the mounting recess 88C is provided on the lower surface 121 of the lower case 13C. The attachment recess 88C is formed so that the attached cover member 40C is substantially flush with the outer peripheral surface of the lower case 13C. That is, the mounting recess 88C is formed to have a recess amount corresponding to the plate thickness of the cover member 40C to be mounted over the range in which the cover member 40C is mounted. As shown in FIGS. 24 and 25, the cover member 40C attached to the attachment recess 88C is set so as to protrude slightly downward. Further, the screw head of the screw member 48C for attaching the cover member 40C is set so as to protrude below the cover member 40C.

In addition, four leg portions 89C are provided on the lower surface 121 of the lower case 13C of the fourth embodiment. These four leg portions 89C support the battery pack 10C so as to receive a supporting force from the placement surface when the battery pack 10C is placed on the placement surface. The four leg portions 89C are formed by appropriately protruding from the lower surface 121 of the lower case 13C in a hemispherical shape. Here, when the battery pack 10C is placed on the placement surface, the cover member 40 including the screw member 48C is spaced apart from the placement surface by the four leg portions 89C. The cover member 40C is screwed by a screw member 48C so that an appropriate space is provided between the cover member 40C and the lower surface 121 of the lower case 13. Accordingly, the water discharged through the drain hole 142 of the lower case 13 is discharged outside through the space between the lower surface 121 of the lower case 13 and the cover member 40C.
According to the battery pack 10C of the fourth embodiment configured as described above, it is possible to achieve substantially the same functions and effects as those provided by the battery pack 10B of the above-described third embodiment. The following effects can also be achieved. That is, according to the battery pack 10C of the fourth embodiment, the appearance and weight of the battery pack as before can be maintained due to the small arrangement range of the cover member 40C. Further, the four leg portions 89C protrude below the screw member 48C attached to the lower case 13C. As a result, the screw member 48C attached to the lower case 13C can be lifted from the placement surface without being brought into contact with the placement surface (for example, “ground”).

[Fifth Embodiment]
Next, a battery pack 10D of the fifth embodiment, which is a modification of the battery pack 10 of the first embodiment described above, will be described with reference to FIGS. The battery pack 10D of the fifth embodiment described below is based on an example in which the protective member according to the present invention of the battery pack 10 of the first embodiment described above is configured by the cover member 40. It is an example which comprises the protection member which concerns on in the protector member 50. FIG. Therefore, in the following, the configuration related to the protector member 50 will be mainly described, and for the configurations other than the protector member 50, the reference numerals used in the description of the first embodiment described above will be diverted. The explanation will be omitted. In addition, in order to divert such a code, the same code as the above code is attached, or 'D' is added at the end of the above code corresponding to the battery pack 10D of the fifth embodiment. It includes things to add. That is, FIG. 26 is an external perspective view showing an upper external perspective view of the battery pack 10D of the fifth embodiment. 27 is an external perspective view showing a lower external perspective view of the battery pack 10D of FIG. FIG. 28 is an exploded top perspective view showing the battery pack 10D of FIG. 26 in an exploded manner. FIG. 29 is a lower exploded perspective view showing the battery pack 10D of FIG. 27 in an exploded manner. 30 is a cross-sectional view taken along the (XXX)-(XXX) cross-section in FIG.
Similarly to the battery packs 10 to 10C of the first to fourth embodiments, the battery pack 10D of the fifth embodiment also corresponds to the power tool battery pack according to the present invention. As shown in FIG. 28 and the like, the battery pack 10D roughly includes a battery pack body 11D and a protector member 50. The battery pack body 11D of the fifth embodiment is the battery of the first to fourth embodiments described above except for the configuration of the lower case 13D (case 12D) for disposing the protector member 50. It is comprised substantially the same as the pack main bodies 11-11C. That is, as shown in FIGS. 26 to 30, the protector member 50 is provided across the front, rear, right, and left side surfaces of the battery pack body 11 </ b> D.

The protector member 50 is a member corresponding to the protective member according to the present invention. The protector member 50 is a member corresponding to the identification information member according to the present invention. The protector member 50 is fixed and held by being sandwiched between the lower case 13D and the upper case 15D. For this reason, the lower case 13D and the upper case 15D are provided with a structure for fixing and holding the protector member 50. That is, as shown in FIG. 30 and the like, a cutout portion 37 and a fitting portion 38 are provided on each of the right and left side walls 131 and 132 of the lower case 13D.
Specifically, the right notch 371 (37) is provided so as to cut out the middle position in the front-rear direction of the right wall 131 of the lower case 13D toward the lower side. The right notch 371 is formed in a notch shape corresponding to a protruding portion 53 of the protector member 50 described below. The right fitting portion 381 (38) is provided at the opening edge of the upper case 15D facing the right wall 131. The right fitting portion 381 is provided corresponding to the arrangement range of the protector member 50, and is formed so that the opening edge of the upper case 15D is recessed toward the inner peripheral side. Also, a right concave groove 391 (39) is provided at the opening edge of the right wall 131 excluding the right notch 371 described above in the right fitting portion 381. That is, the right concave groove 391 is provided adjacent to the right notch 371 provided at the middle position in the front-rear direction of the right wall 131 in the front-rear direction. As will be described later, the right fitting portion 381 is set as a place where the linear body 521 of the right protector member 51 is fitted, and the right concave groove portion 391 is fitted with the convex portion 522 of the right protector member 51. Set as a location.

Similarly, the left notch 372 (37) is provided so as to cut out the intermediate position in the front-rear direction of the left wall 132 of the lower case 13D toward the lower side. The left notch 372 is formed in a notch shape corresponding to a protruding portion 58 of the protector member 50 described below. The left fitting portion 382 (38) is provided at the opening edge of the upper case 15D facing the left wall 132. The left fitting portion 382 is provided corresponding to the arrangement range of the protector member 50, and is formed so that the opening edge of the upper case 15D is recessed toward the inner peripheral side. In addition, a left concave groove 392 (39) is provided at the opening edge of the left wall 132 excluding the left notch 372 described above in the left fitting portion 382. That is, the left recessed groove portion 392 is provided adjacent to the left notch portion 371 provided at the intermediate position in the front-rear direction of the left wall 132 in the front-rear direction. As will be described later, the left fitting portion 382 is set as a place where the filament main body 571 of the left protector member 56 is fitted, and the left concave groove portion 392 is fitted with the convex portion 572 of the right protector member 51. Set as a location.
The cutout portions 37 (371, 372) and the fitting portions 38 (381, 382) provided in this way are structured to firmly sandwich a protector member 50 described below with respect to the lower case 13D and the upper case 15D. Is set.

The protector member 50 includes a right protector member 51 disposed mainly facing the right side of the battery pack 10D, and a left protector member 56 disposed mainly facing the left side of the battery pack 10D. The right protector member 51 and the left protector member 56 are separated from each other and arranged on both the left and right sides. The right protector member 51 and the left protector member 56 are individually integrally formed of a material softer than the material of the case 12D. The protector member 50 including the right protector member 51 and the left protector member 56 may be set similarly to the cover member 40 described above. That is, if the protector member 50 including the right protector member 51 and the left protector member 56 is formed of an elastically deformable material colored with a color selected from a plurality of colors including transparent and translucent. It ’s good. The right protector member 51 is partially different from the left protector member 56 in that the detachable plate member 55 can be attached.
Each of the right protector member 51 and the left protector member 56 is formed so as to be substantially line symmetric with respect to the central axis of the battery pack 10D extending in the front-rear direction of the battery pack 10D. Therefore, in the following, the right protector member 51 and the left protector member 56 that are substantially line symmetrical with each other in the left-right direction will be described together.
That is, as shown in FIG. 28 and FIG. 29, the right protector member 51 and the left protector member 56 are formed with linear portions 52, 57 extending mainly in the front-rear direction. Each of the linear portions 52 and 57 is formed to have a shape along the opening edge shape of the lower case 13D. Specifically, each of the line portions 52 and 57 includes a line main body 521 and 571 along the opening edge shape of the right and left side walls 131 and 132 and a front side line along the opening edge shape of the front side wall 133. It has strips 523 and 573 and rear line strips 524 and 574 along the opening edge shape of the rear side wall 134. The wire main bodies 521, 571, the front wire portions 523, 573, and the rear wire portions 524, 574 have a connected shape extending in the front-rear direction by integral molding, as will be described in detail below.

  The filament main bodies 521 and 571 are formed of filaments extending in the front-rear direction so as to follow the opening edges of the right and left side walls 131 and 132. Overhang portions 53 and 58 are provided at intermediate portions in the front-rear direction of the filament main bodies 521 and 571. The projecting portions 53 and 58 are formed so as to project a substantially rectangular shape in side view from the filament main bodies 521 and 571 downward. Each of the projecting portions 53 and 58 has a shape corresponding to the notch shape of the notch 37 (371, 372) so as to fill the opening space of the notch 37 (371, 372). . That is, each of the projecting portions 53 and 58 is formed to have a size that sufficiently fills the opening space of the notch portions 371 and 372. Further, as shown in FIG. 30, the filament main bodies 521, 571 are provided with convex strip portions 522, 572 that are fitted into the right fitting portion 381 and the left fitting portion 382 described above. The protruding line portions 522 and 572 are formed so as to extend along the extending direction of the linear bodies 521 and 571. Further, the ridge cross-sectional shape of the ridge portions 522 and 572 has a ridge cross-sectional shape that can be press-fitted with respect to the concave groove shapes of the right-side fitting portion 381 and the left-side fitting portion 382 as shown in the drawing. Yes. The overhang portions 53 and 58 and the ridge portions 522 and 572 thus provided are in close contact with the notches 37 (371 and 372) and the fitting portions 38 (381 and 382) provided in the lower case 13D. It is supposed to be. That is, the protector member 50 is firmly sandwiched between the lower case 13 </ b> D and the upper case 15.

The front line portions 523 and 573 are connected at the front ends of the wire main bodies 521 and 571 described above. The front line portions 523 and 573 are formed to have a bent shape along the outer periphery of the front side wall 133 so as to be along the opening edge of the front side wall 133 of the lower case 13D. Front side attachment portions 541 and 591 that are hooked on the outer periphery of the screw boss 16 are provided at the ends of the front side line portions 523 and 573. The front mounting portions 541 and 591 are formed in a C shape having an inner periphery corresponding to the outer periphery of the screw boss 16 and are hooked on the outer periphery of the screw boss 16. A long screw member 161 inserted through a screw hole 141 provided in the lower case 13D is screwed into the screw boss 16.
The rear side wire portions 524 and 574 are connected at the rear ends of the wire main bodies 521 and 571 described above. The rear line portions 524 and 574 are formed to have a bent shape along the outer periphery of the rear side wall 134 so as to follow the opening edge of the rear side wall 134 of the lower case 13D. Rear side attachment portions 542 and 592 that are hooked on the outer periphery of the screw boss 16 are provided at the ends of the rear side linear portions 524 and 574. The rear mounting portions 542 and 592 are formed in a C shape having an inner periphery corresponding to the outer periphery of the screw boss 16 and are hooked on the outer periphery of the screw boss 16. A long screw member 161 inserted through a screw hole 141 provided in the lower case 13D is screwed into the screw boss 16.
By the way, among the above-described protector members 50, the protruding portion 53 of the right protector member 51 is set so that the detachable plate member 55 can be attached and detached. The detachable plate member 55 generally includes a plate body 551 and two male screw members 553. The plate body 551 is formed as a so-called name plate. That is, the plate body 551 is set so as to have a function capable of identifying itself and others. The plate body 551 is made of metal and can be screwed to the overhanging portion 53 via two male screw members 553. For this reason, the plate body 551 is provided with an insertion hole 552 through which the male screw portion of the male screw member 553 can be inserted. Correspondingly, the overhanging portion 53 is provided with a female screw hole 532 that allows the male screw member 553 to be screwed together. In this manner, the detachable plate member 55 is screwed so that the plate body 551 can be attached to and detached from the overhanging portion 53 via the male screw member 553. That is, the plate body 551 can be removed from the overhang portion 53 by unscrewing the male screw member 553.

  The plate body 551 may be set to have a function corresponding to the protection member according to the present invention or a function corresponding to the identification information member according to the present invention. That is, the plate body 551 may be formed of a material that is not deformable and elastically deformable, such as the cover member 40 of the first embodiment described above. Further, the plate body 551 may be formed by being colored with a color selected from a plurality of kinds of colors, like the cover member 40 of the first embodiment described above. That is, the function that can identify the self and others set in the plate body 551 may be any function that can identify the self and others in a broad sense that allows the self and others to be visually identified. In this way, the plate body 551 has a function that can be discriminated at a glance, and the protector member 50 including the plate body 551 that can be discriminated in this way displays the information of the user in a discriminable manner. I can say that. As for the user information, as with the cover member 40, information on the location time of the person (including groups and individuals) who owns the battery pack 10D described above, and a person who uses the battery pack 10D ( This includes various information such as information on the location time of any organization or individual. For this reason, according to such various information, the protector member 50 is divided and shape | molded with the color etc. which were colored, the stamp shape | molded suitably. That is, the protector member 50 is placed with information about a user who is a user who uses the device main body to which the battery pack 10 is attached.

According to the battery pack 10D of the fifth embodiment configured as described above, it is possible to achieve substantially the same functions and effects as those provided by the battery pack 10 of the first embodiment described above. The following effects can also be achieved. That is, according to the battery pack 10D of the fifth embodiment, the plate body 551 of the protector member 50 can be easily attached and detached by screwing. Accordingly, when it is desired to rewrite the user information to be displayed, this rewriting can be easily performed and the convenience can be improved. In addition, since the plate body 551 of the protector member 50 is provided on the right side surface of the battery pack 10D, the battery pack 10D can be viewed in a side view even when the battery pack 10D is placed. The user's information can be determined without taking it. Further, since the protector member 50 described above is provided mainly facing the right and left side surfaces of the battery pack 10D, the protector member 50 can protect the contact with the right and left side surfaces. Furthermore, since the protector member 50 is provided so as to face the front and rear side surfaces of the battery pack 10D, the protector member 50 can protect the front and rear side surfaces from being hit. Further, according to the battery pack 10D of the fifth embodiment, since the protector member 50 is provided between the lower case 13D and the upper case 15, it is generated between the lower case 13D and the upper case 15. It is possible to more reliably fill the gap. Thereby, the waterproofness and dustproofness of battery pack 10D can be improved. Furthermore, according to the battery pack 10D of the fifth embodiment, the overhang portions 53 and 58 and the protruding strip portions 522 and 572 of the protector member 50 are notched portions 37 (371) provided in the lower case 13D. , 372) and the fitting portion 38 (381, 382), the waterproofness and dustproofness of the battery pack 10D can be further improved. Moreover, it can suppress that each of the filament parts 52 and 57 is shifted outside by the recessed groove part 39 provided in the right and left side walls 131 and 132. The right and left protector members 50 (51, 56) can be made difficult to be detached from the lower case 13D and the upper case 15D by the rear mounting portions 542, 592.
In addition, as a fitting structure of the convex strip parts 522 and 572 of the filament main bodies 521 and 571 with respect to the fitting parts 381 and 382 provided in the above-described lower case 13D, it is not limited to the above-described shape. Absent. That is, the fitting structure of the protrusions 522 and 572 with respect to the fitting portions 381 and 382 is not limited to the above-described embodiment as long as it is a combination that can be fitted so as to be in close contact with each other. A possible combination can be selected.

[Sixth Embodiment]
Next, a battery pack 10E according to a sixth embodiment, which is a modification of the battery pack 10D according to the fifth embodiment described above, will be described with reference to FIGS. In addition, the battery pack 10E of the sixth embodiment described below is different from the battery pack 10D of the fifth embodiment described above in the configuration relating to the protector member 60. For this reason, below, the structure regarding this protector member 60 is mainly demonstrated, and the code | symbol used in description of above-described 1st and 5th embodiment is diverted about structures other than this protector member 60. FIG. The description thereof will be omitted. In addition, in order to divert such a code, the same code as that described above is attached, or 'E' is added at the end of the code corresponding to the battery pack 10E of the sixth embodiment. It includes things to add. That is, FIG. 31 is an external perspective view showing an upper external perspective view of the battery pack 10E of the sixth embodiment. 32 is an upper exploded perspective view showing the battery pack 10E of FIG. 31 with the protector member 60 removed. FIG. 33 is a lower exploded perspective view of the battery pack 10E shown in FIG. 31 with the protector member 60 removed. 34 is a cross-sectional view taken along the (XXXIV)-(XXXIV) cross-section in FIG. FIG. 35 is a cross-sectional view taken along the (XXXV)-(XXXV) cross-section in FIG.
The protector member 50 according to the fifth embodiment described above is fixedly held by the case 12D by being sandwiched between the lower case 13D and the upper case 15. On the other hand, as shown in FIGS. 31 to 35, the protector member 60 of the sixth embodiment is fixed and held on the case 12E by providing a structure that is locked to the lower case 13E. It has become.
That is, the protector member 60 of the sixth embodiment is formed to have an appropriate rigidity. For this reason, a plastic resin having an appropriate hardness is selected as the material of the protector member 60 of the sixth embodiment. The protector member 60 is attached only to the right side wall 131 as shown in the figure, and is not attached to the left side wall 132. This protector member 60 has a shape as if it is constituted only by the filament main body 521 of the protector member 50 of the above-described fifth embodiment.

As shown in FIG. 32 and the like, the protector member 60 is formed as a member separate from the right side wall 131 of the lower case 13E. The protector member 60 generally includes a filament main body 61, a front end hooking portion 63, and a rear end hooking portion 64. The filament main body 61 is formed in a flat plate shape having a width in the up-down direction and a thickness in the left-right direction, and is formed so as to extend in the front-rear direction with the length of the right side wall 131 in the front-rear direction. Note that the linear body 61 is set to have a very short vertical length and is attached to the right side wall 131 of the lower case 13E.
A front end latching portion 63 is provided at the front end of the filament main body 61 formed in this way. As shown in FIG. 32 and the like, the front end latching portion 63 is configured to be latchable with respect to the front side wall 133 of the lower case 13E. That is, the front end latching portion 63 is formed to have a curved shape that turns from the right side wall 131 toward the front side wall 133. This curved shape corresponds to a corner shape that forms a boundary between the right side wall 131 and the front side wall 133 of the lower case 13E. A male hook portion 631 protruding toward the rear side is provided at the curved end of the front end latching portion 63. The male hook portion 631 is a portion that is fitted into a female groove 65 provided in the lower case 13E. The male hook portion 631 can be swung using the elasticity of the curved shape of the front end latching portion 63, and can be fitted into the female groove 65 of the lower case 13E.
Similarly, a rear end latching portion 64 is provided at the rear end of the filament main body 61. As shown in FIG. 32 and the like, the rear end hooking portion 64 is also configured to be hookable with respect to the rear side wall 134 of the lower case 13E. That is, the rear end latching portion 64 is formed to have a curved shape that turns from the right side wall 131 toward the rear side wall 134. This curved shape corresponds to the corner shape that forms the boundary between the right side wall 131 and the rear side wall 134 of the lower case 13E. A male hook portion 641 protruding toward the front side is provided at the curved end portion of the rear end latching portion 64. The male hook portion 641 is a portion fitted in a female groove 66 provided in the lower case 13E. The male hook portion 641 can swing using the elasticity of the curved shape of the rear end latching portion 64, and can be fitted into the female groove 66 of the lower case 13E.

On the other hand, the lower case 13E is provided with a structure for making the above-described protector member 60 detachable. That is, the lower case 13E is provided with a recess 37E in which the protector member 60 is fitted near the opening edge facing the upper side. The recessed portion 37E is formed corresponding to the arrangement range of the protector member 60 to be attached. The recessed portion 37E is formed by slightly denting the outer peripheral surface of the right side wall 131 of the lower case 13E. The protector member 60 attached to the recessed portion 37E is in a state of projecting to the outside with a protruding amount obtained by subtracting the recessed step of the recessed portion 37E from the plate thickness of the protector member 60. Female grooves 65 and 66 are provided at the front and rear ends of the recess 37E. That is, the female groove 65 is provided at the front end of the recess 37E. The female groove 65 is formed with respect to the front side wall 133 that is in the vicinity of the corner that forms the boundary between the right side wall 131 and the front side wall 133. The female groove 65 is formed in a concave shape into which the male hook portion 631 of the protector member 60 can be appropriately fitted. A female groove 66 is provided at the rear end of the recessed portion 37E. The female groove 66 is formed with respect to the rear side wall 134 in the vicinity of the corner that forms the boundary between the right side wall 131 and the rear side wall 134 of the lower case 13E. The female groove 66 is formed in a concave shape into which the male hook portion 641 of the protector member 60 can be appropriately fitted. Note that the male hook portions 631 and 641 are fitted into the female grooves 65 and 66 by using elasticity due to the elongated filament main body 61.
According to the battery pack 10E of the sixth embodiment configured as described above, it is possible to achieve substantially the same functions and effects as those provided by the battery pack 10D of the above-described fifth embodiment, and the protector. It is possible to enjoy the advantage that the member 60 can be configured very simply and can be easily attached to and detached from the battery pack body 11E.

[Seventh Embodiment]
Next, a battery pack 10F according to a seventh embodiment, which is a modification of the battery pack 10E according to the sixth embodiment described above, will be described with reference to FIGS. The battery pack 10F according to the seventh embodiment described below is different in the configuration relating to the protector member 60F from the battery pack 10E according to the sixth embodiment described above. For this reason, below, the structure regarding this protector member 60F is mainly demonstrated, and about the structure other than this protector member 60F, the code | symbol used in description of above-described 1st and 6th embodiment is diverted. The description thereof will be omitted. In addition, in order to divert such a code, the same code as the above code is attached, or 'F' is added at the end of the above code corresponding to the battery pack 10F of the seventh embodiment. It includes things to add. 36 is an upper exploded perspective view showing the battery pack 10F according to the seventh embodiment with the protector member 60F removed. FIG. 37 is a cross-sectional view taken along the line (XXXVII)-(XXXVII) in FIG.
The protector member 60F according to the seventh embodiment is set in substantially the same manner with respect to the arrangement range as compared with the protector member 60E according to the sixth embodiment described above, and is fitted when a molding material or attachment is performed. The structure is different. That is, the protector member 60F of the seventh embodiment is formed as a separate member from the right side wall 131 of the lower case 13F, and is sandwiched when the lower case 13F and the upper case 15F are combined in the vertical direction. Is retained. The protector member 60F generally includes a filament main body 61F, a front end portion 63F, and a rear end portion 64F. For the protector member 60F, a softer molding material is selected than the protector member 60E of the above-described sixth embodiment. Moreover, the shape provided in the filament main body 61F is utilized as a fitting structure when this protector member 60F is attached. That is, the protector member 60E of the sixth embodiment described above has a structure that is attached to the case 12E by a latching structure provided at the front and rear ends, but the protector member 60F of the seventh embodiment is The structure attached to case 12F by the latching structure provided in the filament main body 61F is comprised.

  The filament main body 61F of the seventh embodiment is formed in a flat plate shape having a width in the vertical direction and a thickness in the horizontal direction, substantially the same as the filament main body 61 of the sixth embodiment described above. The right side wall 131 has a longitudinal length and is formed to extend in the longitudinal direction. This filament main body 61F is also set to have a very short vertical length and is attached to the right side wall 131 of the lower case 13E. Here, as shown in FIG. 37, a lower fitting protrusion 65F protruding from the lower end edge to the line is provided on the lower end edge of the line main body 61F. . The lower fitting protrusion 65F extends along the extending direction of the filament main body 61F by projecting the inner peripheral surface side (case side) portion of the filament main body 61F downward. Thereby, an appropriate level | step difference shape is formed in the lower end edge of this filament main body 61F. Similarly, an upper fitting protrusion 66F that protrudes upward from the upper end edge to the line is provided on the upper end edge of the line main body 61F. The upper fitting protrusion 66F extends along the extending direction of the filament main body 61F with the inner peripheral surface side (case side) portion of the filament main body 61F protruding upward. Thereby, an appropriate level | step difference shape is formed in the upper side edge of this filament main body 61F. Note that the front end portion 63F provided at the front end of the filament main body 61F has only a curved shape that wraps around from the right side wall 131 toward the front side wall 133, as in the above-described sixth embodiment. A stop structure is not provided. Similarly, the rear end portion 64F provided at the rear end of the filament main body 61F has only a curved shape that turns from the right side wall 131 toward the rear side wall 134, and the sixth embodiment described above. Such a latching structure is not provided.

  On the other hand, in the case 12F of the seventh embodiment, the lower fitting recess 67 and the upper fitting for fitting the lower fitting protrusion 65F and the upper fitting protrusion 66F described above are fitted. A recess 68 is provided. Specifically, the lower fitting recess 67 is formed in a concave groove shape that is set so that the lower fitting protrusion 65F can be fitted, and is provided along the opening edge of the lower case 13F. It has been. Further, the upper fitting recess 68 is formed in a concave groove shape that is set so that the above-described upper fitting protrusion 66F can be fitted, and is provided along the opening edge of the upper case 15F. The lower fitting concave portion 67 and the upper fitting concave portion 68 formed in this way, when the lower case 13F and the upper case 15F are combined while sandwiching the protector member 60F, the lower fitting convex portion of the protector member 60F. 65F and the upper fitting protrusion 6 are adapted to be fitted. The protector member 60 that has been concavo-convexly fitted in this manner is sandwiched so as to be reliably held by the combination of the lower case 13F and the upper case 15F. In addition, such uneven fitting of the protector member 60F may be fitting by press-fitting using the elasticity of the protector member 60F. Thus, when the protector member 60F is unevenly fitted with respect to the case 12F, the adhesiveness of the boundary part of the lower case 13F and the upper case 15F which comprises this case 12F can be improved, and it is waterproof. In addition, a case structure (housing structure) excellent in dust proofing is formed. That is, even in the battery pack 10F of the seventh embodiment configured as described above, it is possible to achieve substantially the same operational effects as the operational effects achieved by the battery pack 10E of the sixth embodiment described above. In addition, the battery pack can be more waterproof and dustproof.

[Eighth Embodiment]
Next, a battery pack 10G of the eighth embodiment, which is a modification of the battery pack 10E of the sixth embodiment described above, will be described with reference to FIGS. Note that the battery pack 10G of the eighth embodiment described below is different in configuration regarding the protector member 60G from the battery pack 10E of the sixth embodiment described above. For this reason, below, the structure regarding this protector member 60G is mainly demonstrated, and about the structure other than this protector member 60G, the code | symbol used in description of above-described 1st and 6th embodiment is diverted. The description thereof will be omitted. In addition, in order to divert such a code, the same code as the above code is attached, or 'F' is added at the end of the above code corresponding to the battery pack 10G of the eighth embodiment. It includes things to add. That is, FIG. 38 is an external perspective view showing an upper external perspective view of the battery pack 10G of the eighth embodiment. FIG. 39 is an upper exploded perspective view showing the battery pack of FIG. 38 with the protector member removed. 40 is a cross-sectional view taken along the (XXXX)-(XXXX) cross-section in FIG. 41 is a cross-sectional view taken along the (XXXXI)-(XXXXI) cross-section in FIG.
The protector member 60G according to the eighth embodiment is set in substantially the same manner with respect to the molding material as compared with the protector member 60E according to the sixth embodiment described above, and the fitting range and fitting when being attached. The structure is different. That is, the protector member 60G of the eighth embodiment is attached to the rear side wall 134 of the lower case 13G, and is formed as a separate member from the lower case 13G. The protector member 60G is formed in a U shape in a top view as shown in FIG. For this protector member 60G, a hard molding material equivalent to the protector member 60E of the above-described sixth embodiment is selected. Since the protector member 60G is attached mainly along the rear side wall 134 of the lower case 13G, the protector member 60G has a shape along the outer peripheral surface shape of the rear side of the lower case 13G.

The protector member 60G is generally an integral molded member having a rear side body 61G, a right connecting portion 63G, and a left connecting portion 64G. The rear side body 61G is set as a portion facing the rear side wall 134 of the lower case 13G. On the other hand, the right connecting portion 63G is formed to extend from the right end of the rear side surface 61G to the front side in the orthogonal direction, and is set as a portion facing the right side wall 131 of the lower case 13G. A fitting convex portion 631G for coupling to the lower case 13G is provided in the vicinity of the end portion of the right connecting portion 63G. The left connecting portion 64G is formed to extend from the left end of the rear side body 61G to the front side in the orthogonal direction, and is set as a portion facing the right side wall 131 of the lower case 13G. Further, a fitting convex portion 641G for coupling to the lower case 13G is provided in the vicinity of the end portion of the left connecting portion 64G. The lower case 13G is also provided with a recess 37G for attaching the protector member 60G. The recessed portion 37G is formed corresponding to the arrangement range of the protector member 60G to be attached, and slightly recesses the outer peripheral surfaces of the right and left side walls 134, 131, 132 after the lower case 13G. It is formed by. The protector member 60G attached to the recessed portion 37G is in a state of protruding to the outside with a protruding amount obtained by subtracting the recessed step of the recessed portion 37G from the plate thickness of the protector member 60G. In addition, fitting recesses 65G and 66G for fitting fitting projections 631G and 641G provided on the protector member 60G are provided on the right and left side walls 131 and 132 where the recess 37G is provided as described above. Yes. When the fitting convex portions 631G and 641G of the protector member 60G are thus fitted into the fitting concave portions 65G and 66G of the lower case 13G, the protector member 60G is attached to the lower case 13G.
According to the battery pack 10G of the eighth embodiment configured as described above, it is possible to achieve substantially the same functions and effects as those provided by the battery pack 10E of the sixth embodiment described above. That is, in the battery pack 10E of the sixth embodiment described above, the effect of disposing the protector member 60 mainly on the right side surface of the battery pack 10E could be enjoyed. The battery pack 10G can enjoy the effect of disposing the protector member 60G mainly on the rear side surface of the battery pack 10G.

In addition, in the battery pack for electric tools which concerns on this invention, it is not limited to the above-mentioned embodiment, You may make it change and comprise suitably as follows. That is, in the above-described embodiment, the number of battery cells is set to 10, but the number of battery cells according to the present invention is not limited to this, A number may be provided. Moreover, in the battery pack for electric tools which concerns on this invention, appropriate information can be selected as information mounted on an identification information member, without being limited to the example of above-described embodiment. In the battery pack for an electric power tool according to the present invention, the softness of the protective member is not limited to the example of the embodiment described above, and can be selected to have an appropriate hardness.
In addition, the voltage supplied by the battery pack 10 of the above-described embodiment has been particularly exemplified, but may be set at an appropriate voltage. For example, as the voltage supplied by the battery pack for an electric power tool according to the present invention, an appropriate voltage such as 3.6V, 7.2V, 10.8V, 14.4V, 18V, 24V, 25.2V, 36V, etc. It may be set by voltage. The battery pack 10 according to the above-described embodiment is an example of a battery pack for an electric tool that is slid and mounted so-called as a slide type. However, the battery pack for an electric power tool according to the present invention is not limited to this, and is constituted by an example of a battery pack for an electric power tool of a type to be inserted and mounted, which is called a plug-in type. May be.

10, 10A, 10B, 10C, 10D, 10E, 10F, 10G Battery pack (battery pack for electric tools)
DESCRIPTION OF SYMBOLS 11 Battery pack main body 12 Case 13 Lower case 15 Upper case 16 Screw boss | hub 171,172 Slide guide part 181,182 Charge / discharge terminal part 19 Signal terminal connector 25 Male hook mechanism 26 Hook-type structure 30 Battery main body 31 Battery cell part 32 Battery cell 33 Lead plate 34 Cell holder 35 Control board part 36 Circuit board 37 Notch part 38 Insertion part 391 Right side groove part 392 Left side groove part 40, 40A, 40B, 40C Cover member (identification information member, protection member)
50 Protector member (protective member)
51 Right-side protector member 55 Detachable plate member 56 Left-side protector member 52, 57 Line part 53, 58 Overhang part 60, 60E, 60F, 60G Protector member (identification information member, protection member)
80 Fitting recess 121 Lower surface (identifiable part)
131 Right side wall 132 Left side wall 133 Front side wall 134 Rear side wall

Claims (2)

A battery pack for a power tool that can be attached to and detached from a device body such as a tool body or a charger,
A battery cell, and a case for housing the battery cell,
The battery pack for an electric tool, wherein an identification information member is detachably provided on the case. A battery pack for a power tool that can be attached to and detached from a device body such as a tool body or a charger,
A battery cell, and a case for housing the battery cell,
A battery pack for an electric tool, wherein a protective member for protecting the case is detachably provided on the case.

Images