JP7316948B2 - electrical equipment - Google Patents

Description

The technology disclosed in this specification relates to electrical equipment.

Japanese Unexamined Patent Application Publication No. 2002-200001 discloses an electric device. The electrical device includes a housing in which the battery pack can be attached and detached by sliding the battery pack in a sliding direction, a battery connection terminal electrically connected to the battery pack attached to the housing, and the battery connection terminal. and a terminal cover movable between a protective position for protecting the battery connection terminals and an exposed position for exposing the battery connection terminals. The housing has a cover rail extending along the sliding direction. The terminal cover includes a cover body having a shape that at least partially covers the battery connection terminal, a substantially cylindrical stopper integrally formed with the cover body, and a washer fixed to the tip of the stopper with a screw. and the stopper and the washer are slidably engaged with the cover rail in the sliding direction.

Japanese Patent Application Laid-Open No. 2004-147360

In the electrical device of Patent Document 1, when the terminal cover is assembled to the housing, it is necessary to screw the washer to the stopper, which makes the assembly work and repair work complicated. BACKGROUND ART Techniques that enable easy assembly and repair work are expected for electrical equipment that has a terminal cover.

This specification discloses an electrical device. The electrical device includes a housing in which the battery pack can be attached and detached by sliding the battery pack in a sliding direction, a battery connection terminal electrically connected to the battery pack attached to the housing, and the battery connection terminal. and an exposed position for exposing the battery connection terminals. The housing may have a cover rail extending along the sliding direction. The terminal cover may include a cover body having a shape that at least partially covers the battery connection terminal, and a hook integrally formed with the cover body. The hook may be slidably engaged with the cover rail in the sliding direction.

According to the above electric device, the terminal cover can be assembled to the housing by engaging the hook integrally formed with the cover main body with the cover rail. When the terminal cover is attached to the housing, no screws are required, so assembly and repair work can be easily performed.

1 is a perspective view showing a charger 10 of Example 1 together with a battery pack 2. FIG. 1 is a longitudinal sectional view of charger 10 of embodiment 1. FIG. FIG. 4 is a perspective view showing a state in which the terminal cover 34 of the charger 10 of Example 1 is in a protective position; 4 is a top view showing a state where the terminal cover 34 of the charger 10 of Example 1 is in a protective position; FIG. 3 is a perspective view showing a state in which the terminal cover 34 of the charger 10 of Example 1 is in an exposed position; FIG. FIG. 4 is a top view of the charger 10 of Example 1, showing a state in which the terminal cover 34 is in an exposed position; 3 is a perspective view of the terminal cover 34 of the charger 10 of Embodiment 1 as seen from the front right upper side. FIG. 4 is a perspective view of the terminal cover 34 of the charger 10 of Embodiment 1 as seen from the rear right upper side. FIG. 4 is a cross-sectional view of the battery pack mounting portion 14 of the charger 10 of Embodiment 1. FIG. Fig. 3 is a perspective view of the upper housing 24 of the charger 10 of Embodiment 1 as seen from the front right lower side; 4 is a vertical cross-sectional view showing the state of the charger 10 of Embodiment 1 in the vicinity of the extension spring 38 when the terminal cover 34 is in the protective position. FIG. 4 is a vertical cross-sectional view showing the vicinity of the tension spring 38 of the charger 10 of Embodiment 1 with the terminal cover 34 at the exposed position. FIG. 3 is a perspective view showing the state inside the housing 12 of the battery charger 10 of Embodiment 1 with the terminal cover 34 at the protecting position. FIG. FIG. 4 is a perspective view showing the inside of the housing 12 of the battery charger 10 of Example 1 with the terminal cover 34 at the exposed position. FIG. 10 is a perspective view showing the adapter 102 of Example 2 together with a battery pack 104 and a battery checker 106; FIG. 11 is a perspective view of the terminal cover 114 of the adapter 102 of Example 2 in a protective position; FIG. 11 is a perspective view of the terminal cover 114 of the adapter 102 of Example 2 in the exposed position; FIG. 12 is a perspective view of the upper housing 128 of Embodiment 2 as seen from the front right lower side; FIG. 11 is a perspective view of a state in which the control board 116 having device-side terminals 174 and battery-side terminals 176 mounted thereon is attached to the upper housing 128 of the second embodiment, as viewed from the front right lower side. FIG. 11 is a cross-sectional view of the adapter 102 according to the second embodiment, with the terminal cover 114 removed, as viewed in a cross section perpendicular to the front-rear direction; FIG. 11 is a bottom view of an upper housing 128 to which extension springs 126a and 126b and a terminal cover 114 are attached according to the second embodiment, as viewed from below; FIG. 11 is a perspective view of the adapter 102 of Example 2 as seen from the front right lower side; FIG. 11 is a cross-sectional view of the adapter 102 according to the second embodiment, with the terminal cover 114 removed, as viewed in a cross section orthogonal to the left-right direction; FIG. 11 is a perspective view of the terminal cover 114 of the adapter 102 of Embodiment 2 as seen from the front left upper side; FIG. 11 is a perspective view of the terminal cover 114 of the adapter 102 of Embodiment 2 as seen from the rear left upper side; FIG. 10 is a cross-sectional view of the adapter 102 of Example 2 as seen in a cross section perpendicular to the front-rear direction; FIG. 11 is a perspective view of the adapter 202 of Example 3 as seen from the front left upper side; FIG. 11 is a perspective view of the terminal cover 204 of the adapter 202 of Example 3 as viewed from the front left upper side;

Below, representative and non-limiting embodiments of the present invention will be described in detail with reference to the drawings. This detailed description is merely intended to provide those skilled in the art with details for implementing a preferred embodiment of the invention, and is not intended to limit the scope of the invention. Moreover, the additional features and inventions disclosed below can be used separately from, or in conjunction with, other features and inventions to provide still improved electrical appliances and methods of making and using the same.

Moreover, any combination of features and steps disclosed in the following detailed description are not required to practice the invention in its broadest sense, but are specifically intended to illustrate representative embodiments of the invention only. is described. Moreover, various features of the exemplary embodiments described above and below, as well as those set forth in the independent and dependent claims, are described herein in providing additional and useful embodiments of the invention. They do not have to be combined in the exact order given or in the order listed.

All features set forth in the specification and/or claims, apart from the configuration of the features set forth in the examples and/or claims, are limitations on the original disclosure and claimed subject matter: They are intended to be disclosed separately and independently of each other. Moreover, all numerical ranges and groupings or populations are intended to disclose configurations intermediate therebetween as limitations on the original disclosure as well as the specific subject matter claimed.

In some embodiments, an electric device includes a housing to which the battery pack can be attached and detached by sliding the battery pack in a sliding direction, and battery connection terminals electrically connected to the battery pack attached to the housing. and a terminal cover movable between a protection position for protecting the battery connection terminals and an exposure position for exposing the battery connection terminals. The housing may have a cover rail extending along the sliding direction. The terminal cover may include a cover body having a shape that at least partially covers the battery connection terminal, and a hook integrally formed with the cover body. The hook may be slidably engaged with the cover rail in the sliding direction.

According to the above electric device, the terminal cover can be assembled to the housing by engaging the hook integrally formed with the cover main body with the cover rail. When the terminal cover is attached to the housing, no screws are required, so assembly and repair work can be easily performed.

In some embodiments, the cover rail may comprise a first cover rail and a second cover rail. The hook includes a first hook slidably engaged with the first cover rail in the sliding direction and a second hook slidably engaged with the second cover rail in the sliding direction. A mating second hook may be provided.

According to the above configuration, the first hook and the second hook are slidably engaged with the first cover rail and the second cover rail, respectively, so that the terminal cover is attached to the housing. It is possible to suppress rattling of the terminal cover when it is slid. The terminal cover can be slid smoothly with respect to the housing.

In some embodiments, the battery connection terminals may be arranged between the first cover rail and the second cover rail.

According to the above configuration, in the electric device, the range occupied by the battery connection terminal, the terminal cover, and the cover rail can be made smaller in the sliding direction.

In some embodiments, the housing may further include a cover removal prevention member that prevents the hook from moving or deforming so as to disengage from the cover rail.

According to the above configuration, it is possible to prevent the hook from unintentionally coming off the cover rail.

In some embodiments, the electrical device may further comprise an extension spring contained within the housing. The terminal cover may be biased from the exposed position toward the protected position by an elastic restoring force of the tension spring.

In some embodiments, an electric device includes a housing to which the battery pack can be attached and detached by sliding the battery pack in a sliding direction, and battery connection terminals electrically connected to the battery pack attached to the housing. a terminal cover movable in the sliding direction between a protection position for protecting the battery connection terminal and an exposure position for exposing the battery connection terminal; and a tension spring housed inside the housing. good too. The terminal cover may be biased from the exposed position toward the protected position by an elastic restoring force of the tension spring.

In a configuration in which the terminal cover is urged from the exposed position toward the protected position by the elastic restoring force of the compression spring, when the compression spring undergoes buckling deformation, the compression spring comes into contact with surrounding members, causing noise. and damage to the compression spring and surrounding members. According to the above configuration, since the terminal cover is urged from the exposed position toward the protected position by the elastic restoring force of the tension spring, it is possible to prevent the occurrence of noise and damage to members due to the buckling deformation of the spring. be able to.

In some embodiments, one end of the tension spring may be held by the terminal cover. The other end of the tension spring may be held by the housing. The housing may further include a columnar member that holds the other end of the tension spring, and a stopper member that prevents the other end of the tension spring from moving in the axial direction of the columnar member.

In a configuration in which the other end of the tension spring is held by a columnar member, when the tension spring expands and contracts, the position at which the columnar member holds the other end of the tension spring may shift along the axial direction of the columnar member. . According to the above configuration, it is possible to prevent the position where the columnar member of the housing holds the other end of the tension spring from shifting along the axial direction of the columnar member.

In some embodiments, the housing may further include a tension spring receiving member arranged to surround the tension spring inside the housing.

If the end of the tension spring were to come off the mounting location and the tension spring itself moved within the housing, the tension spring would come into contact with other parts such as a circuit board placed inside the housing. This may cause problems. According to the above configuration, even if the end of the tension spring is detached from the mounting location, the tension spring itself can be prevented from moving within the housing, and the tension spring can be mounted on the circuit board or the like. can be prevented from coming into contact with other parts of the

In some embodiments, the cover rail may be formed at the edge of a through hole formed in the housing. The hook may have a shape that protrudes from the cover body in a direction in which the terminal cover is directed from the exposed position to the protected position.

If the cover rail is formed at the edge of the through-hole formed in the housing, water or other foreign matter may enter through the through-hole from the outside of the housing and damage the tension spring when the battery pack is not attached. Operation may be affected. According to the above configuration, the hook protrudes from the cover body in the direction from the exposed position to the protected position of the terminal cover. can be shielded from the outside of the housing. In a state in which the battery pack is not attached, it is possible to prevent water or foreign matter from entering from the outside of the housing through the through hole and affecting the operation of the tension spring.

In some embodiments, the outer surface of the cover rail may be formed with a ridge extending along the sliding direction.

If the above-described ridges are not formed on the outer surface of the cover rail, repeated sliding of the hook on the cover rail may cause scratches on the outer surface of the cover rail, which may impair the appearance of the electrical equipment. There is According to the above configuration, even when the hook repeatedly slides on the cover rail, it is possible to suppress the formation of scratches on the outer surface of the cover rail, and the appearance of the electrical equipment can be maintained.

In some embodiments, the terminal cover further comprises a cover plate integrally formed with the hook and extending along an outer surface of the cover rail and having a longitudinal direction in the sliding direction. good too.

According to the above configuration, it is possible to prevent the terminal cover from rattling with respect to the housing even when a force in the rotational direction that vertically moves the end portion of the terminal cover in the sliding direction acts on the terminal cover. It is possible to prevent the terminal cover from coming into contact with the battery connection terminal.

In some embodiments, the cover body may have reinforcing members along a plane perpendicular to the sliding direction.

According to the above configuration, it is possible to improve the rigidity in the direction orthogonal to the sliding direction of the cover body. As a result, even when an impact acts on the cover main body, deformation of the cover main body can be suppressed, and contact of the cover main body with the battery connection terminal can be suppressed.

(Example 1)
A charger 10 of Example 1 will be described with reference to FIGS. 1 to 14 . As shown in FIG. 1 , charger 10 is an electrical device for charging battery pack 2 . The battery pack 2 is a power source for an electric tool (not shown) or an electric working machine (not shown), and is configured to be detachable from the electric tool or electric working machine. The battery pack 2 can be attached to and detached from the charger 10 by sliding it in a predetermined sliding direction. Hereinafter, the direction in which the battery pack 2 slides and is projected onto the mounting surface of the charger 10 is referred to as the front-rear direction, and the direction orthogonal to the front-rear direction within the mounting surface of the charger 10 is referred to as the left-right direction. A direction orthogonal to the mounting surface of 10 is referred to as a vertical direction.

As shown in FIG. 2 , charger 10 includes housing 12 , battery pack mounting portion 14 , charging circuit 16 , and blower 18 . Housing 12 includes an inner frame 20 , a lower housing 22 and an upper housing 24 . The lower housing 22 defines the outer shape of the lower half of the charger 10 , and the upper housing 24 defines the outer shape of the upper half of the charger 10 . Upper housing 24 is secured to lower housing 22 by fasteners (not shown). Charging circuit 16, blower 18, and inner frame 20 are housed inside lower housing 22 and upper housing 24, and are secured to lower housing 22 by fasteners (not shown), respectively.

The battery pack attachment portion 14 is provided on the upper surface of the upper housing 24 . In this embodiment, the charger 10 has one battery pack attachment portion 14 to which one battery pack 2 can be attached. Alternatively, the charger 10 may have more than one battery pack mounting portion 14 and be capable of mounting more than one battery pack 2 . The charging circuit 16 converts AC power supplied from a power cord (not shown) into DC power, and supplies charging power to the battery pack 2 attached to the battery pack attachment portion 14 . The blower 18 draws in air from an air supply port 26 provided in the upper housing 24 and discharges air from an exhaust port 28 provided in the lower housing 22 . When the battery pack 2 is attached to the battery pack attachment portion 14 , the exhaust port (not shown) of the battery pack 2 is arranged to face the air supply port 26 of the upper housing 24 . When the charger 10 charges the battery pack 2 , the charging circuit 16 drives the blower 18 to suck air from the exhaust port of the battery pack 2 , thereby flowing cooling air inside the battery pack 2 . to cool the battery pack 2.

As shown in FIGS. 3 to 6, the battery pack mounting portion 14 includes battery rails 30 and 31, battery connection terminals 32 (see FIGS. 5 and 6), a terminal cover 34, cover rails 36 and 37, Tension springs 38 and 39 (see FIG. 6) are provided. The battery rail 30 is arranged at the left end of the battery pack attachment portion 14 . The battery rail 30 includes a support wall 30a projecting upward from the upper housing 24 and a guide rib 30b projecting rightward from the upper end of the support wall 30a. The battery rail 31 is arranged at the right end of the battery pack mounting portion 14 . The battery rail 31 includes a support wall 31a projecting upward from the upper housing 24 and a guide rib 31b projecting leftward from the upper end of the support wall 31a. When the battery pack 2 is attached to the battery pack attachment portion 14, the guide ribs 30b and 31b enter guide grooves (not shown) formed in the battery pack 2, thereby allowing the battery pack 2 to slide in the sliding direction. It is held on battery rails 30 and 31 . A battery connection terminal 32 is arranged between the battery rails 30 and 31 . The battery connection terminal 32 is held by the upper housing 24 so that the upper portion protrudes upward from the upper housing 24 . The battery connection terminal 32 is electrically connected to the charging circuit 16 by wiring (not shown) inside the housing 12 .

The terminal cover 34 is held by cover rails 36 and 37 so as to be slidable in the sliding direction. The terminal cover 34 is slidable between a protection position covering the battery connection terminals 32 (see FIGS. 3 and 4) and an exposure position exposing the battery connection terminals 32 (see FIGS. 5 and 6). The terminal cover 34 is urged from the exposed position to the protected position by elastic restoring force of the tension springs 38 and 39 . Therefore, when the battery pack 2 is not attached to the battery pack attachment portion 14, the elastic restoring force of the tension springs 38 and 39 holds the terminal cover 34 at the protective position. When the battery pack 2 is attached to the battery pack attachment portion 14, the terminal cover 34 is pressed by the battery pack 2, so that the terminal cover 34 moves from the protection position to the exposure position. Cover rails 36 and 37 are formed on the upper surface of upper housing 24 . In this embodiment, through holes 40 and 41 are formed in the upper surface of the upper housing 24 and extend in the sliding direction, and the edges of the through holes 40 and 41 of the upper housing 24 form cover rails 36 and 37. are doing.

As shown in FIGS. 7 and 8, the terminal cover 34 has a cover main body 42 and hooks 44 and 45 . The cover main body 42 and the hooks 44, 45 are integrally formed. The cover body 42 includes a front plate 42a that covers the front of the battery connection terminals 32, an upper plate 42b that covers the top, a left plate 42c that covers the left, a right plate 42d that covers the right, and the battery connection terminals 32 adjacent to each other. It has a partition plate 42e arranged between. The left plate 42c, right plate 42d, and partition plate 42e of the cover body 42 are arranged along a plane parallel to the sliding direction. The hook 44 is formed integrally with the left plate 42c of the cover body 42. As shown in FIG. The hook 44 has an engaging portion 44a and a spring mounting portion 44b. The engaging portion 44a has a U-shaped cross-sectional shape that opens toward the right side and extends along the sliding direction. The spring mounting portion 44b protrudes downward from the lower surface of the engaging portion 44a. A spring mounting hole 44c is formed in the spring mounting portion 44b. The hook 45 is formed integrally with the right plate 42 d of the cover body 42 . The hook 45 has an engaging portion 45a and a spring mounting portion 45b. The engaging portion 45a has a U-shaped cross-sectional shape that opens toward the left side and extends along the sliding direction. The spring mounting portion 45b protrudes downward from the lower surface of the engaging portion 45a. A spring mounting hole 45c is formed in the spring mounting portion 45b.

As shown in FIG. 9, the terminal cover 34 elastically deforms the engaging portions 44a and 45a of the hooks 44 and 45 in an outward opening direction, and inserts the engaging portions 44a and 45a into the through holes 40 and 41, respectively. Thus, it is attached to the upper housing 24 . When the terminal cover 34 is attached to the upper housing 24, the engaging portions 44a and 45a of the hooks 44 and 45 are engaged with the cover rails 36 and 37 so as to be slidable in the sliding direction. Thereby, the terminal cover 34 is held slidably in the sliding direction with respect to the upper housing 24 .

As shown in FIG. 10, the inner upper surface of the upper housing 24 is formed with spring mounting posts 46 and 47 protruding downward. As shown in FIGS. 11 and 12, the tension spring 38 has a front end 38a held by the spring mounting portion 44b of the hook 44 of the terminal cover 34 and a rear end 38b held by the spring mounting post 46 of the upper housing 24. be. A stopper rib 48 is formed on the outer surface of the spring mounting column 46 . A stopper wall 50 is formed on the inner frame 20 so as to correspond to the spring mounting column 46 . The rear end 38 b of the tension spring 38 is restrained from moving along the axial direction of the spring mounting column 46 by the stopper wall 50 and the stopper rib 48 . Similarly, the tension spring 39 has its front end 39 a held by the spring mounting portion 45 b of the hook 45 of the terminal cover 34 and its rear end 39 b held by the spring mounting column 47 of the upper housing 24 . A stopper rib 49 is formed on the outer surface of the spring mounting column 47 . A stopper wall 51 is formed on the inner frame 20 so as to correspond to the spring mounting column 47 . The rear end 39 b of the tension spring 39 is restrained from moving along the axial direction of the spring mounting column 47 by the stopper wall 51 and the stopper rib 49 .

13 and 14, the inner frame 20 includes a bottom plate 52 arranged below the tension spring 38, an inner rib 54 projecting upward from the bottom plate 52 on the right side of the tension spring 38, and the tension spring 38. It has an outer rib 56 projecting upward from the bottom plate 52 on the left side of the bottom plate 52 . The tension spring 38 expands and contracts within a space defined by the bottom plate 52 , the inner ribs 54 and the outer ribs 56 of the inner frame 20 and the upper housing 24 . With such a configuration, even if the front end 38a of the tension spring 38 is disengaged from the hook 44 or the rear end 38b of the tension spring 38 is disengaged from the spring mounting column 46, the tension spring 38 can be Movement within the housing 12 can be prevented, and the extension spring 38 can be prevented from coming into contact with the charging circuit 16 and the blower 18 . Similarly, the inner frame 20 includes a bottom plate 53 arranged below the tension spring 39 , an inner rib 55 projecting upward from the bottom plate 53 on the left side of the tension spring 39 , and a rib 55 on the right side of the tension spring 39 from the bottom plate 53 . It has outer ribs 57 projecting upwards. The tension spring 39 expands and contracts within a space defined by the bottom plate 53 , inner ribs 55 and outer ribs 57 of the inner frame 20 and the upper housing 24 . With such a configuration, even if the front end 39a of the tension spring 39 is disengaged from the hook 45 or the rear end 39b of the tension spring 39 is disengaged from the spring mounting column 47, the tension spring 39 is Movement within the housing 12 can be prevented, and the extension spring 39 can be prevented from coming into contact with the charging circuit 16 and the blower 18 .

As shown in FIG. 9 , the outer rib 56 of the inner frame 20 is arranged on the left side of the hook 44 of the terminal cover 34 . Therefore, it is possible to prevent the hook 44 from moving or deforming in a direction away from the cover rail 36 . Also, the outer rib 57 of the inner frame 20 is arranged on the right side of the hook 45 of the terminal cover 34 . Therefore, it is possible to prevent the hook 45 from moving or deforming in a direction away from the cover rail 37 . Such a configuration can prevent the hooks 44 and 45 from unintentionally coming off the cover rails 36 and 37 .

In the above embodiment, the two cover rails 36, 37 are formed on the upper housing 24, and the terminal cover 34 is provided with the two hooks 44, 45. As shown in FIG. Alternatively, the upper housing 24 may have only one cover rail and the terminal cover 34 may have only one hook. Alternatively, the upper housing 24 may have three or more cover rails, and the terminal cover 34 may have three or more hooks.

In the above-described embodiment, through holes 40 and 41 are formed in the upper surface of the upper housing 24 and extend longitudinally in the sliding direction. The configuration that is forming has been described. Alternatively, the cover rails 36 and 37 may be formed by providing an L-shaped rail-like portion on the upper surface of the upper housing 24 without forming the through holes 40 and 41 in the upper housing 24 .

In the above embodiment, the case where the electrical equipment is the charger 10 has been described. Other types of electrical equipment to which the battery pack 2 is attachable and detachable, such as a conversion adapter that connects a device having a different interface from the battery pack 2, may be used.

As described above, in one or more embodiments, the charger 10 (an example of an electric device) includes a housing 12 in which the battery pack 2 can be attached and detached by sliding the battery pack 2 in a sliding direction, and a It comprises a battery connection terminal 32 electrically connected to the attached battery pack 2, and a terminal cover 34 movable between a protection position protecting the battery connection terminal 32 and an exposure position exposing the battery connection terminal 32. ing. The housing 12 has cover rails 36, 37 extending along the sliding direction. The terminal cover 34 includes a cover body 42 having a shape that at least partially covers the battery connection terminals 32 , and hooks 44 and 45 integrally formed with the cover body 42 . The hooks 44, 45 are slidably engaged with the cover rails 36, 37 in the sliding direction.

According to the charger 10 described above, the terminal cover 34 can be assembled to the housing 12 by engaging the hooks 44 and 45 integrally formed with the cover body 42 with the cover rails 36 and 37 . When the terminal cover 34 is attached to the housing 12, no screws are required, so assembly and repair work can be easily performed.

In one or more embodiments, cover rails 36 , 37 comprise a first cover rail 36 and a second cover rail 37 . The hooks 44 and 45 are arranged so that the first hook 44 is slidably engaged with the first cover rail 36 and the second cover rail 37 is slidably engaged. It has a second hook 45 which is engaged.

According to the above configuration, the first hook 44 and the second hook 45 are slidably engaged with the first cover rail 36 and the second cover rail 37, respectively. When sliding the terminal cover 34 with respect to the housing 12, it is possible to suppress the terminal cover 34 from rattling. The terminal cover 34 can be slid smoothly with respect to the housing 12 .

In one or more embodiments, battery connection terminals 32 are positioned between first cover rail 36 and second cover rail 37 .

According to the above configuration, in the charger 10, the range occupied by the battery connection terminal 32, the terminal cover 34, and the cover rails 36, 37 can be made smaller in the sliding direction.

In one or more embodiments, the housing 12 includes outer ribs 56 that prevent the hooks 44, 45 from moving or deforming out of engagement with the cover rails 36, 37. Example) is further provided.

According to the above configuration, it is possible to prevent the hooks 44 and 45 from unintentionally coming off the cover rails 36 and 37 .

In one or more embodiments, charger 10 further includes tension springs 38 and 39 housed within housing 12 . The terminal cover 34 is urged from the exposed position toward the protected position by the elastic restoring forces of the tension springs 38 and 39 .

In a configuration in which the terminal cover 34 is urged from the exposed position toward the protected position by the elastic restoring force of the compression spring, the compression spring contacts surrounding members when the compression spring undergoes buckling deformation. This can cause noise and damage the compression spring and surrounding members. According to the above configuration, since the terminal cover 34 is urged from the exposed position toward the protected position by the elastic restoring force of the tension springs 38 and 39, the buckling deformation of the springs causes noise and damage to the members. Damage can be prevented.

In one or more embodiments, the front ends 38a, 39a (one example end) of the tension springs 38, 39 are retained by the terminal cover 34. FIG. Rear ends 38 b and 39 b (an example of the other end) of tension springs 38 and 39 are held by housing 12 . The housing 12 includes spring mounting posts 46, 47 (examples of columnar members) holding rear ends 38b, 39b of the tension springs 38, 39, and spring mounting posts 46, 47 for the rear ends 38b, 39b of the tension springs 38, 39. Stopper ribs 48, 49 and stopper walls 50, 51 (examples of stopper members) are further provided for preventing movement along the axial direction.

In the configuration in which the rear ends 38b, 39b of the tension springs 38, 39 are held by the spring mounting posts 46, 47, the spring mounting posts 46, 47 move the rear ends of the tension springs 38, 39 when the springs 38, 39 expand and contract. There is a risk that the positions at which 38b and 39b are held may be displaced along the axial direction of the spring mounting posts 46 and 47. According to the above configuration, the positions at which the spring mounting posts 46 and 47 of the housing 12 hold the rear ends 38b and 39b of the tension springs 38 and 39 are not shifted along the axial direction of the spring mounting posts 46 and 47. can be prevented.

In one or more embodiments, the housing 12 includes bottom plates 52, 53, inner ribs 54, 55 and outer ribs 56, 57 (tension An example of a spring accommodating member) is further provided.

If the front ends 38a, 39a and the rear ends 38b, 39b of the tension springs 38, 39 are disengaged from their mounting locations, and the tension springs 38, 39 themselves move within the housing 12, they will be inside the housing 12. The tension springs 38 and 39 may come into contact with other parts such as the charging circuit 16 and the blower 18, which may cause problems. According to the above configuration, even if the front ends 38a, 39a or the rear ends 38b, 39b of the tension springs 38, 39 are detached from the mounting locations, the tension springs 38, 39 themselves move within the housing 12. It is possible to prevent the tension springs 38 and 39 from coming into contact with other parts such as the charging circuit 16 and the blower 18 .

In one or more embodiments, cover rails 36 , 37 are formed at the edges of through holes 40 , 41 formed in housing 12 . The hooks 44 and 45 have a shape protruding from the cover main body 42 in the direction from the exposed position to the protected position of the terminal cover 34 .

When the cover rails 36, 37 are formed at the edges of the through holes 40, 41 formed in the housing 12, the through holes 40, 41 are accessible from the outside of the housing 12 when the battery pack 2 is not attached. Water or foreign matter may enter through the springs 38 and 39 and affect the operation of the tension springs 38 , 39 . According to the above configuration, the hooks 44 and 45 project from the cover body 42 with respect to the direction from the exposed position to the protected position of the terminal cover 34. Therefore, as shown in FIG. Hooks 44 and 45 allow tension springs 38 and 39 to be shielded from the exterior of housing 12 when 2 is not attached. When the battery pack 2 is not attached, it is possible to prevent water or foreign matter from entering from the outside of the housing 12 through the through holes 40 and 41 and affecting the operation of the tension springs 38 and 39 . If the through holes 40 and 41 are covered with the battery pack 2, water or foreign matter may enter from the outside of the housing 12 through the through holes 40 and 41 even when the battery pack 2 is attached. It is possible to suppress the influence on the operations of 38 and 39.

(Example 2)
The adapter 102 of Example 2 will be described with reference to FIGS. 15 to 26. FIG. Adapter 102 is an electrical device used to connect battery pack 104 and battery checker 106 . The battery pack 104 is used, for example, by attaching it to an electric power tool such as a screwdriver or a drill, or an electric working machine such as a brush cutter or a blower. Battery pack 104 includes, for example, lithium-ion battery cells. The battery checker 106 displays, for example, the remaining amount of the battery pack 104, the cumulative number of times of charging, and, if the battery pack 104 is faulty, the location of the fault. For example, when the old-model battery pack 104 and the old-model battery checker 106 are configured to be connectable to each other, and the new-model battery pack 104 and the old-model battery checker 106 are configured to be unconnectable to each other, the adapter 102 In order to connect the new-model battery pack 104 to the old-model battery checker 106, the new-model battery pack 104 and the old-model battery checker 106 are prepared. In addition, the adapter 102 is configured to connect the old-model battery pack 104 to the new-model battery checker 106 when the old-model battery pack 104 and the new-model battery checker 106 are configured to be unconnectable to each other. 104 and the new battery checker 106 may be prepared.

As shown in FIG. 15, the lower surface of the battery pack 104 is provided with a battery-side mounting portion 104a. A checker-side mounting portion 106 a is provided on the upper surface of the battery checker 106 . The checker-side mounting portion 106 a of the battery checker 106 does not correspond to the battery-side mounting portion 104 a of the battery pack 104 . Therefore, the battery-side mounting portion 104a of the battery pack 104 cannot be attached to or detached from the checker-side mounting portion 106a of the battery checker 106 . A checker mounting portion 108 (see FIG. 22) corresponding to the checker side mounting portion 106a of the battery checker 106 is provided on the lower surface of the adapter 102, and the battery side mounting portion 104a of the battery pack 104 is provided on the upper surface of the adapter 102. A battery mounting portion 110 (see FIG. 16) corresponding to is provided. The adapter 102 can be attached to and detached from the battery checker 106 by sliding the checker attachment portion 108 of the adapter 102 to the checker side attachment portion 106 a of the battery checker 106 . The battery pack 104 can be attached to and detached from the adapter 102 by sliding the battery side attachment portion 104 a of the battery pack 104 to the battery attachment portion 110 of the adapter 102 . By attaching the adapter 102 to the battery checker 106 and attaching the battery pack 104 to the adapter 102 , the battery pack 104 is connected to the battery checker 106 via the adapter 102 . Hereinafter, the direction in which the adapter 102 is slid relative to the battery checker 106 is called the front-rear direction, the direction perpendicular to the front-rear direction is called the left-right direction, and the direction perpendicular to the front-rear direction and the left-right direction is called the up-down direction.

As shown in FIG. 16, adapter 102 includes housing 112 and terminal cover 114 . Housing 112 includes an upper housing 128 and a lower housing 130 . Upper housing 128 defines the contour of the upper portion of adapter 102 . A battery mounting portion 110 is provided on the upper surface 128a of the upper housing 128 . Lower housing 130 defines the contour of the lower portion of adapter 102 . As shown in FIG. 22, a checker mounting portion 108 is provided on the lower surface 130a of the lower housing 130. As shown in FIG. Upper housing 128 and lower housing 130 are secured together by screws 131 .

As shown in FIG. 16, the upper housing 128 includes battery rails 134 and 136, through holes 138 and 140 (see FIGS. 18 to 21 for the through hole 140), and ridges 139 and 141 (see FIG. 20). , and a terminal mounting portion 142 (see FIG. 18) are formed. The battery rails 134 , 136 have a longitudinal direction along which the battery pack 104 slides relative to the adapter 102 . Battery rail 134 is located at the right end of top surface 128 a of upper housing 128 . Battery rail 136 is located at the left end of top surface 128 a of upper housing 128 . When attaching the battery side attachment portion 104a of the battery pack 104 to the battery attachment portion 110 of the adapter 102, the battery rails 134 and 136 guide the battery side attachment portion 104a in the front-rear direction.

The through-holes 138 are arranged close to the battery rails 134 . The through hole 138 has a longitudinal direction in the sliding direction. As shown in FIG. 20, through holes 140 are positioned adjacent to battery rails 136 . As shown in FIG. 18, the through hole 140 has a longitudinal direction in the sliding direction. The through holes 138 , 140 face the battery pack 104 when the battery pack 104 is attached to the adapter 102 . The terminal attachment portion 142 is positioned between the battery rails 134,136. In this embodiment, edge portions of the through holes 138 and 140 form cover rails 135 and 137 .

As shown in FIGS. 16 and 17, the terminal cover 114 is held by cover rails 135 and 137 so as to be slidable in the sliding direction. The terminal cover 114 is slidable between a protective position (see FIG. 16) covering the battery-side terminals 176 described later and an exposing position (see FIG. 17) exposing the battery-side terminals 176 . The terminal cover 114 is biased from the exposed position toward the protected position by tension springs 126a and 126b (see FIG. 21). Therefore, when the battery pack 104 is not attached to the adapter 102, as shown in FIG. 16, the terminal cover 114 is held at the protective position by the elastic restoring forces of the tension springs 126a and 126b. When the battery pack 104 is attached to the adapter 102, the terminal cover 114 is pressed by the battery pack 104 to move the terminal cover 114 from the protected position to the exposed position.

As shown in FIGS. 24 and 25, the terminal cover 114 includes a cover body 115 and hooks 117 and 119. As shown in FIGS. The cover main body 115 and the hooks 117, 119 are integrally formed. The cover main body 115 includes a front plate 115a that covers the front of the battery side terminal 176, an upper plate 115b that covers the upper side, a left plate 115c that covers the left side, a right plate 115d that covers the right side, and an adjacent battery side terminal 176. A partition plate 115e arranged between, a reinforcing rib 115f provided between the left plate 115c and the partition plate 115e, a reinforcing rib 115g provided between the right plate 115d and the partition plate 115e, and the partition plate 115e has a reinforcing flange 115h provided at its rear end. The left plate 115c, right plate 115d, and partition plate 115e of the cover body 115 are arranged along a plane including the sliding direction and the vertical direction. The reinforcing ribs 115f and 115g and the reinforcing flange 115h are arranged along a plane orthogonal to the sliding direction.

The hook 117 is integrally formed with the right plate 115d of the cover body 115. As shown in FIG. The hook 117 has an engaging portion 117a and a spring mounting portion 117b. The engaging portion 117a includes an upper plate 117c, a right plate 117d extending downward from the right end of the upper plate 117c, and a lower plate 117e extending leftward from the right plate 117d. The upper plate 117c, the right plate 117d, and the lower plate 117e extend along the sliding direction. A ridge 117f extending in the sliding direction is formed on the upper surface of the lower plate 117e. The spring mounting portion 117b protrudes downward from the lower plate 117e of the engaging portion 117a. A spring mounting hole 117g is formed in the spring mounting portion 117b. The hook 119 is formed integrally with the left plate 115c of the cover body 115. As shown in FIG. The hook 119 has an engaging portion 119a and a spring mounting portion 119b. The engaging portion 119a includes an upper plate 119c, a left plate 119d extending downward from the left end of the upper plate 119c, and a lower plate 119e extending rightward from the left plate 119d. The upper plate 119c, the left plate 119d, and the lower plate 119e extend along the sliding direction. A ridge 119f extending in the sliding direction is formed on the upper surface of the lower plate 119e. The spring mounting portion 119b protrudes downward from the lower plate 119e of the engaging portion 119a. A spring mounting hole 119g is formed in the spring mounting portion 119b.

As shown in FIG. 26, the terminal cover 114 elastically deforms the engaging portions 117a and 119a of the hooks 117 and 119 in an outward opening direction to insert the engaging portions 117a and 119a into the through holes 138 and 140, respectively. Thus, it is attached to the upper housing 128 . When the terminal cover 114 is attached to the upper housing 128, the engaging portions 117a and 119a of the hooks 117 and 119 are engaged with the cover rails 135 and 137 so as to be slidable in the sliding direction. Thereby, the terminal cover 114 is held slidably in the sliding direction with respect to the upper housing 128 .

When the terminal cover 114 is attached to the upper housing 128, the projections 139, 141 of the upper housing 128 contact the lower surfaces of the upper plates 117c, 119c of the hooks 117, 119. 117 f and 119 f of the hooks 117 and 119 are movable upward to the position where the cover rails 135 and 137 abut on the cover rails 135 and 137 . Therefore, when the terminal cover 114 is slid relative to the upper housing 128 in the sliding direction, the projections 139 and 141 are attached to the lower surfaces of the upper plates 117c and 119c of the hooks 117 and 119 and the lower surfaces of the cover rails 135 and 137. However, the outer surface of the upper housing 128 and the outer surface of the terminal cover 114 are not damaged. Therefore, even when the terminal cover 114 is repeatedly slid with respect to the upper housing 128, the appearance of the adapter 102 can be kept good.

As shown in FIG. 20, the adapter 102 further comprises a control board 116 and waterproof walls 118, 120. As shown in FIG. The control board 116 and waterproof walls 118 , 120 are housed inside an upper housing 128 and a lower housing 130 . As shown in FIG. 19, the control board 116 is positioned with respect to the upper housing 128 at two of the four corners that are diagonally opposite to each other by positioning pins 144 of the upper housing 128 . Further, the control board 116 is fixed to the upper housing 128 by screws 146 at the other two diagonal corners of the four corners.

Waterproof walls 118 and 120 extend downward from the upper inner surface of upper housing 128 (see FIG. 18). As shown in FIG. 20 , the waterproof wall 118 extends along the slide direction on the left side of the cover rail 135 of the through hole 138 . The waterproof wall 118 is arranged so as to block the space between the through hole 138 and the control board 116 . A lower end portion of the waterproof wall 118 is arranged below the control board 116 . The waterproof wall 120 extends along the slide direction on the right side of the cover rail 137 of the through hole 140 . The waterproof wall 120 is arranged so as to block the space between the through hole 140 and the control board 116 . A lower end portion of the waterproof wall 120 is arranged below the control board 116 . The control board 116 is arranged between the waterproof walls 118 and 120 in the left-right direction. Waterproof walls 118 and 120 each guide water downward when water enters inside housing 112 through through holes 138 and 140 respectively.

As shown in FIG. 21, pins 132a and 132b extend downward from the upper inner surface of the upper housing 128. As shown in FIG. The pin 132a is arranged between the waterproof wall 118 and the right edge of the through hole 138 in the left-right direction. With respect to the left-right direction, the width W1 between the pin 132a and the waterproof wall 118 is substantially the same as the width W2 between the pin 132a and the right edge of the through hole 138. As shown in FIG. Further, the pin 132b is arranged between the waterproof wall 120 and the left edge of the through hole 140 in the left-right direction. With respect to the left-right direction, the width W1 between the pin 132b and the waterproof wall 120 is substantially the same as the width W2 between the pin 132b and the left edge of the through hole 140. As shown in FIG.

One end of the tension spring 126a is attached to the pin 132a. The other end of the tension spring 126 a is attached to the spring attachment portion 117 b of the terminal cover 114 . The tension spring 126a is inclined away from the waterproof wall 118 from the front side to the rear side. If the position of the pin 132a is closer to the waterproof wall 118 side than the pin 132a of the present embodiment, and the tension spring 126a is arranged parallel to the front-rear direction, the tension spring 126a interferes with the waterproof wall 118. Attachability of the spring 126a deteriorates. In this embodiment, since the tension spring 126a is inclined away from the waterproof wall 118 from the front side to the rear side, the tension spring 126a interferes with the waterproof wall 118 and the attachment of the tension spring 126a is deteriorated. can be suppressed. One end of a tension spring 126b is attached to the pin 132b. The other end of the tension spring 126b is attached to the spring attachment portion 119b of the terminal cover 114. As shown in FIG. The tension spring 126b is inclined away from the waterproof wall 120 from the front side to the rear side. Therefore, it is possible to prevent the extension spring 126b from interfering with the waterproof wall 120 and deteriorating the mountability of the extension spring 126b.

As shown in FIG. 22, the lower housing 130 is formed with checker rails 150 and 152 and a terminal mounting portion 154 . The checker rails 150, 152 have a longitudinal direction in the front-rear direction. The checker rail 150 is arranged at the right end of the lower surface 130 a of the lower housing 130 . The checker rail 152 is arranged at the left end of the lower surface 130 a of the lower housing 130 . The checker rails 150 and 152 are longer than rails (not shown) of the battery-side mounting portion 104 a of the battery pack 104 . This prevents the adapter 102 from being erroneously attached to an electric device other than the battery checker 106, such as an electric power tool or an electric working machine. The checkered rail 152 extends further forward than the front end of the checkered rail 150 . As a result, the adapter 102 is detachable from the old battery checker 106 but not detachable from the new battery checker 106 . When attaching the checker-side attachment portion 106a of the battery checker 106 to the checker-side attachment portion 108 of the adapter 102, the checker rails 150 and 152 guide the checker-side attachment portion 106a in the sliding direction. The terminal attachment portion 154 is arranged between the checker rails 150 and 152 .

Adapter 102 also includes hook 180 . Hook 180 is located at the rear end of adapter 102 . The hook 180 normally protrudes below the lower surface 130a of the lower housing 130 by being biased by a compression spring 182 (see FIG. 23). The hook 180 has a longitudinal direction in the vertical direction. The adapter 102 is held by the battery checker 106 by engaging the hook 180 with an engagement groove (not shown) formed on the upper surface of the battery checker 106 .

As shown in FIG. 20, the adapter 102 further comprises inner walls 122,124. The inner walls 122 , 124 are contained within upper housing 128 and lower housing 130 . Inner walls 122 , 124 extend upwardly from the lower inner surface of lower housing 130 . The inner walls 122, 124 have a longitudinal direction in the fore-and-aft direction. The inner wall 122 is arranged on the left side of the waterproof wall 118 and on the right side of the control board 116 . The upper end of the inner wall 122 is located above the lower end of the waterproof wall 118 and the control board 116 . The inner wall 124 is arranged on the right side of the waterproof wall 120 and on the left side of the control board 116 . The upper end of the inner wall 124 is located above the lower end of the waterproof wall 120 and the control board 116 . The control board 116 is arranged between the inner walls 122 and 124 in the left-right direction. In addition, the inner walls 122 and 124 are arranged between the waterproof walls 118 and 120 in the left-right direction. The inner walls 122, 124 and the waterproof walls 118, 120 form a labyrinth structure by the inner wall 122 overlapping the waterproof wall 118 and the inner wall 124 overlapping the waterproof wall 120 in the left-right direction. As a result, compared to the case where the adapter 102 has only one of the waterproof walls 118, 120 and the inner walls 122, 124, water entering the housing 112 through the through holes 138, 140 is Reaching the control substrate 116 can be further suppressed.

Stepped portions 158 and 160 are formed on the inner surface of the lower housing 130 . The stepped portion 158 is arranged on the right side of the inner wall 122 and the waterproof wall 118 . The lower inner surface of the lower housing 130 on the right side of the stepped portion 158 is located above the lower inner surface between the stepped portion 158 and the inner wall 122 . A waterproof groove 164 is formed between the stepped portion 158 and the inner wall 122 . The stepped portion 160 is arranged on the left side of the inner wall 124 and the waterproof wall 120 . The lower inner surface of the lower housing 130 on the left side of the stepped portion 160 is located above the lower inner surface between the stepped portion 160 and the inner wall 124 . A waterproof groove 166 is formed between the stepped portion 160 and the inner wall 124 . A waterproof groove 166 is formed. The waterproof grooves 164, 166 have a longitudinal direction in the fore-and-aft direction. The lower end of the waterproof wall 118 is arranged in the waterproof groove 164 . Moreover, the lower end of the waterproof wall 120 is arranged in the waterproof groove 166 . Watertight grooves 164, 166 receive water directed by watertight walls 118, 120, respectively.

The lower housing 130 is formed with outlets 168 , 170 . The outlet 168 is located at the front end of the waterproof groove 164 . Also, the outlet 170 is arranged at the front end of the waterproof groove 166 .

When the adapter 102 is attached to the battery checker 106 placed on a horizontal plane, the lower surface 130a of the lower housing 130 is inclined from the upper side to the lower side as it goes from the rear side to the front side with respect to the horizontal plane. . Therefore, the waterproof grooves 164 and 166 are inclined from the upper side to the lower side from the rear side to the front side with respect to the horizontal plane. As a result, water dripping from the waterproof walls 118 , 120 into the waterproof grooves 164 , 166 flows forward and is discharged to the outside of the housing 112 through the outlets 168 , 170 . Water discharged from outlets 168 and 170 drips down the lower side of battery checker 106 along the outer surface of battery checker 106 .

Further, even when the adapter 102 is placed on a horizontal surface, the lower surface 130a of the lower housing 130 is inclined from the upper side to the lower side as it goes from the rear side to the front side with respect to the horizontal plane. For this reason, the waterproof grooves 164 and 166 are inclined from the upper side to the lower side as they go from the rear side to the front side with respect to the horizontal plane. As a result, the water that has moved from the waterproof walls 118 , 120 to the waterproof grooves 164 , 166 flows forward and is discharged from the housing 112 through the outlets 168 , 170 .

As shown in FIG. 23, the control board 116 is arranged parallel to the lower surface 130a of the lower housing 130. As shown in FIG. The control board 116 is inclined with respect to the upper surface 128a of the upper housing 128. As shown in FIG. In this embodiment, the upper surface 128a of the upper housing 128 is angled at an angle of 5° with respect to the lower surface 130a of the lower housing 130 . The upper surface 128a of the upper housing 128 may be inclined with respect to the lower surface 130a of the lower housing 130 at an angle of greater than 0° and 10° or less, or greater than 0° and 15° or less. may be inclined at an angle of

Device-side terminals 174 are mounted on the lower surface 116 a of the control board 116 . The device-side terminal 174 extends downward from the lower surface 116a of the control board 116, then bends and extends forward. The device-side terminals 174 protrude outside the lower housing 130 through the terminal mounting portions 154 of the lower housing 130 . When the adapter 102 is attached to the battery checker 106 , the device-side terminals 174 are electrically connected to terminals (not shown) of the battery checker 106 .

A battery side terminal 176 is mounted on the upper surface 116 b of the control board 116 . The battery-side terminal 176 protrudes outside the upper housing 128 through the terminal mounting portion 142 of the upper housing 128 . When the adapter 102 is attached to the battery pack 104 , the battery-side terminals 176 are electrically connected to terminals (not shown) of the battery pack 104 .

(Example 3)
The adapter 202 of Example 3 will be described with reference to FIGS. 27 and 28. FIG. As shown in FIG. 27, the adapter 202 of this embodiment has substantially the same configuration as the adapter 102 of the second embodiment. The adapter 202 of this embodiment has a terminal cover 204 instead of the terminal cover 114 .

As shown in FIG. 28, the terminal cover 204 of this embodiment has substantially the same configuration as the terminal cover 114 of the second embodiment. The terminal cover 204 of this embodiment includes a cover body 115, hooks 117 and 119, and cover plates 206 and 208. As shown in FIG.

The cover plate 206 is arranged along the same plane as the upper plate 117 c of the hook 117 . The cover plate 206 extends from the front plate 115 a of the cover body 115 to the top plate 117 c of the hook 117 . The cover plate 208 is arranged along the same plane as the upper plate 119 c of the hook 119 . The cover plate 208 extends from the front plate 115 a of the cover body 115 to the top plate 119 c of the hook 119 .

As shown in FIG. 27, when the terminal cover 204 is attached to the upper housing 128, the cover plate 206 and the upper plate 117c of the hook 117 are arranged to face the ridges 139 of the upper housing 128, and the cover plate 204 is arranged to face the protrusion 139 of the upper housing 128. 208 and the upper plate 119c of the hook 119 are arranged to face the ridge 141 of the upper housing 128. As shown in FIG. Therefore, when a force is applied to rotate the terminal cover 204 with respect to the upper housing 128 about the left-right direction as the rotation axis, the terminal cover 204 rattles less than the adapter 102 of the second embodiment. As a result, even when a force is applied to rotate the terminal cover 204 with respect to the upper housing 128 about the left-right direction as the rotation axis, the battery-side terminals 176 do not come into contact with the front plate 115a and the upper plate 115b of the cover main body 115. It can be suppressed.

As described above, in one or more embodiments, the adapter 102, 202 (an example of an electrical device) includes a housing 112 into which the battery pack 104 can be attached and detached by sliding the battery pack 104 in a sliding direction, and a housing 112. Between the battery side terminal 176 (example of battery connection terminal) electrically connected to the battery pack 104 attached to the battery side terminal 176, the protection position protecting the battery side terminal 176, and the exposed position exposing the battery side terminal 176 A movable terminal cover 114, 204 is provided. The housing 112 has cover rails 135 and 137 extending along the sliding direction. The terminal covers 114 , 204 include a cover body 115 having a shape that at least partially covers the battery-side terminals 176 , and hooks 117 , 119 integrally formed with the cover body 115 . The hooks 117, 119 are slidably engaged with the cover rails 135, 137 in the sliding direction.

According to the adapters 102 and 202 described above, the terminal covers 114 and 204 can be assembled to the housing 112 by engaging the hooks 117 and 119 integrally formed with the cover body 115 with the cover rails 135 and 137. . When assembling the terminal covers 114 and 204 to the housing 112, no screwing work is required, so assembly work and repair work can be easily performed.

In one or more embodiments, cover rails 135 , 137 comprise first cover rail 135 and second cover rail 137 . The hooks 117 and 119 are arranged so that the first hook 117 is slidably engaged with the first cover rail 135 and the second cover rail 137 is slidably engaged. It has an engaging second hook 119 .

According to the above configuration, the first hook 117 and the second hook 119 are slidably engaged with the first cover rail 135 and the second cover rail 137, respectively. , 204 relative to the housing 112, the terminal covers 114, 204 can be prevented from rattling. Terminal covers 114 and 204 can be slid smoothly with respect to housing 112 .

In one or more embodiments, battery side terminal 176 is positioned between first cover rail 135 and second cover rail 137 .

According to the above configuration, in the adapters 102, 202, the range occupied by the battery side terminals 176, the terminal covers 114, 204, and the cover rails 135, 137 can be made smaller in the sliding direction.

In one or more embodiments, adapters 102 , 202 further include extension springs 126 a, 126 b contained within housing 112 . The terminal covers 114, 204 are urged from the exposed position toward the protected position by elastic restoring force of the tension springs 126a, 126b.

In one or more embodiments, the adapter 102, 202 (an example of an electrical device) includes a housing 112 into which the battery pack 104 can be attached and detached by sliding the battery pack 104 in a sliding direction, and a battery attached to the housing 112. A terminal cover movable between a battery side terminal 176 (an example of a battery connection terminal) electrically connected to the pack 104, a protective position protecting the battery side terminal 176, and an exposed position exposing the battery side terminal 176. 114 , 204 and tension springs 126 a, 126 b contained within housing 112 . The terminal covers 114, 204 are urged from the exposed position toward the protected position by elastic restoring force of the tension springs 126a, 126b.

In the configuration in which the terminal covers 114 and 204 are urged from the exposed position toward the protected position by the elastic restoring force of the compression springs, when the compression springs undergo buckling deformation, the compression springs come into contact with surrounding members. This can lead to noise and damage to the compression spring and surrounding members. According to the above configuration, the terminal covers 114, 204 are urged from the exposed position toward the protected position by the elastic restoring force of the tension springs 126a, 126b. Damage to members can be prevented.

In one or more embodiments, cover rails 135 and 137 are formed at the edges of through holes 138 and 140 formed in housing 112 . Hooks 117 and 119 project from cover body 115 in the direction in which terminal covers 114 and 204 move from the exposed position to the protected position.

If the cover rails 135, 137 are formed at the edges of the through holes 138, 140 formed in the housing 112, the through holes 138, 140 are accessible from the outside of the housing 112 when the battery pack 104 is not attached. Water or foreign matter may enter through the springs and affect the operation of the tension springs 126a and 126b. According to the above configuration, the hooks 117 and 119 protrude from the cover body 115 in the direction from the exposed position to the protected position of the terminal covers 114 and 204, so that the battery pack 104 is attached. Even without the hooks 117 and 119, the tension springs 126a and 126b can be shielded from the outside of the housing 112. FIG. When the battery pack 104 is not attached, it is possible to prevent water or foreign matter from entering from the outside of the housing 112 through the through holes 138, 140 and affecting the operation of the tension springs 126a, 126b.

In one or more embodiments, the outer surfaces of the cover rails 135, 137 are formed with ridges 139, 141 extending along the sliding direction.

If the ridges 139 and 141 as described above are not formed on the outer surfaces of the cover rails 135 and 137, the cover rails 135 and 137 may be damaged when the hooks 117 and 119 repeatedly slide against the cover rails 135 and 137. There is a risk that scratches will be formed on the outer surface and the aesthetic appearance of the adapter 102, 202 will be spoiled. According to the above configuration, even if the hooks 117 and 119 repeatedly slide against the cover rails 135 and 137, the outer surfaces of the cover rails 135 and 137 can be prevented from being scratched. , 202 can be preserved.

In one or more embodiments, the terminal cover 204 is integrally formed with the hooks 117, 119 and extends along the outer surface of the cover rails 135, 137 to provide a cover plate having a longitudinal direction in the sliding direction. 206, 208.

According to the above configuration, even when the terminal cover 204 is subjected to a force in the rotational direction that vertically moves the end portion of the terminal cover 204 in the sliding direction, the terminal cover 204 is prevented from rattling with respect to the housing 112 . Thus, contact of the terminal cover 204 with the battery side terminal 176 can be suppressed.

In one or more embodiments, the cover body 115 includes reinforcing ribs 115f, 115g and reinforcing flanges 115h (an example of reinforcing members) along a plane perpendicular to the sliding direction.

According to the above configuration, the rigidity in the direction orthogonal to the sliding direction of the cover body 115 can be improved. As a result, even when cover body 115 receives an impact, deformation of cover body 115 can be suppressed, and contact of cover body 115 with battery-side terminal 176 can be suppressed.

2: Battery pack 10: Charger 12: Housing 14: Battery pack mounting portion 16: Charging circuit 18: Blower 20: Inner frame 22: Lower housing 24: Upper housing 26: Air supply port 28: Air outlet 30: Battery rail 30a: support wall 30b: guide rib 31: battery rail 31a: support wall 31b: guide rib 32: battery connection terminal 34: terminal cover 36: cover rail 37: cover rail 38: tension spring 38a: front end 38b: rear end 39: tension spring 39a: front end 39b: rear end 40: through hole 41: through hole 42: cover body 42a: front plate 42b: upper plate 42c: left plate 42d: right plate 42e: partition plate 44: hook 44a: engaging portion 44b: spring Mounting portion 44 c : Spring mounting hole 45 : Hook 45 a : Engagement portion 45 b : Spring mounting portion 45 c : Spring mounting hole 46 : Spring mounting column 47 : Spring mounting column 48 : Stopper rib 49 : Stopper rib 50 : Stopper wall 51 : Stopper wall 52 : Bottom plate 53 : Bottom plate 54 : Inner rib 55 : Inner rib 56 : Outer rib 57 : Outer rib 102 : Adapter 104 : Battery pack 104a : Battery side mounting portion 106 : Battery checker 106a : Checker side mounting portion 108 : Checker mounting portion 110 : Battery mounting portion 112 : Housing 114 : Terminal cover 115 : Cover body 115a : Front plate 115b : Top plate 115c : Left plate 115d : Right plate 115e : Partition plate 115f : Reinforcement rib 115g : Reinforcement rib 115h : Reinforcement flange 116 : Control Substrate 116a: Lower surface 116b: Upper surface 117: Hook 117a: Engaging portion 117b: Spring mounting portion 117c: Upper plate 117d: Right plate 117e: Lower plate 117f: Projection 117g: Spring mounting hole 118: Waterproof wall 119: Hook 119a: Engagement portion 119b: Spring mounting portion 119c: Upper plate 119d: Left plate 119e: Lower plate 119f: Projection 119g: Spring mounting hole 120: Waterproof wall 122: Inner wall 124: Inner wall 126a: Tension spring 126b: Tension spring 128: Upper side Housing 128a : Upper surface 130 : Lower housing 130a : Lower surface 131 : Screw 132a : Pin 132b : Pin 134 : Battery rail 135 : Cover rail 136 : Battery rail 137 : Cover rail 138 : Through hole 139 : Protruding strip 140 : Through hole 141 : Projection 142 : Terminal mounting portion 144 : Positioning pin 146 : Screw 150 : Checker rail 152 : Checker rail 154 : Terminal mounting portion 158 : Stepped portion 160 : Stepped portion 164 : Waterproof groove 166 : Waterproof groove 168 : Discharge port 170 : Outlet 174 : Device side terminal 176 : Battery side terminal 180 : Hook 182 : Compression spring 202 : Adapter 204 : Terminal cover 206 : Cover plate 208 : Cover plate

Claims (11)

a housing to which the battery pack can be attached and detached by sliding the battery pack in a sliding direction;
a battery connection terminal electrically connected to the battery pack attached to the housing;
a terminal cover movable between a protective position that protects the battery connection terminal and an exposed position that exposes the battery connection terminal;
the housing includes a cover rail extending along the sliding direction;
The terminal cover is
a cover body having a shape that at least partially covers the battery connection terminal;
A hook formed integrally with the cover body is provided,
The electrical device, wherein the hook is slidably engaged with the cover rail in the sliding direction. the cover rail comprises a first cover rail and a second cover rail;
The hook is slidably engaged with the first cover rail in the sliding direction, and is slidably engaged with the second cover rail in the sliding direction. 2. The electrical device of claim 1, comprising a mating second hook. 3. The electrical device of claim 2, wherein the battery connection terminals are positioned between the first cover rail and the second cover rail. 4. The electric device according to any one of claims 1 to 3, wherein the housing further comprises a cover removal prevention member that prevents the hook from moving or deforming so as to disengage from the cover rail. further comprising a tension spring housed within the housing;
5. The electrical equipment according to any one of claims 1 to 4, wherein said terminal cover is urged from said exposed position toward said protected position by an elastic restoring force of said tension spring. one end of the tension spring is held by the terminal cover,
the other end of the tension spring is held by the housing;
the housing
a columnar member holding the other end of the tension spring;
6. The electric device according to claim 5, further comprising a stopper member that prevents the other end of the tension spring from moving along the axial direction of the columnar member. 7. The electrical device according to claim 5, wherein said housing further comprises a tension spring housing member arranged to surround said tension spring inside said housing. the cover rail is formed on an edge portion of a through hole formed in the housing,
The electric device according to any one of claims 5 to 7, wherein the hook has a shape projecting from the cover body in the direction from the exposed position to the protected position of the terminal cover. 9. The electrical equipment according to any one of claims 1 to 8, wherein an outer surface of said cover rail is formed with a ridge extending along said sliding direction. 10. The terminal cover of any one of claims 1 to 9, further comprising a cover plate integrally formed with the hook, extending along the outer surface of the cover rail and having a longitudinal direction in the sliding direction. Item 1 electrical equipment. The electric device according to any one of claims 1 to 10, wherein said cover body includes a reinforcing member along a plane orthogonal to said sliding direction.

Images