CN107068923B - Battery mounting device - Google Patents

Abstract

In a battery mounting device for mounting and dismounting a battery for an electric tool, a hanging and clamping hole for hanging is arranged, and foreign matters and static electricity are prevented from entering from the outside of a shell to the inside of the shell through the hanging and clamping hole, so that the misoperation of a product is prevented. The battery pack has a battery mounting portion to which a battery for a power tool is attached and detached, and has a case (20) as an exterior. The housing (20) is provided with a hanging and clamping hole (31) which communicates the inside and the outside of the housing (20) and can hang and clamp an external screw outside. A cover member (70) is attached to an attachment section (40) set on the inner surface (201) of a housing (20). The lid member (70) functions to close the opening of the hooking hole (31) from the inside of the housing (20). The cover member (70) prevents foreign matter and static electricity from entering the housing (20) from the outside of the housing (20) through the hooking hole (31).

Description

Battery mounting device

Technical Field

The invention relates to a battery installer for disassembling and assembling a battery for an electric tool.

Background

Recently, a battery for an electric power tool is used as a driving power source for the electric power tool. Such a battery for an electric power tool is removed from the tool main body and attached to a dedicated charger for charging when the remaining amount of electricity is reduced (see, for example, patent document 1). On the other hand, a dedicated diagnostic device, also called a battery level detector, for checking for abnormality of a battery for an electric power tool is known. Such a diagnostic device is configured to detect a battery state such as a result of diagnosing the number of times a battery for an electric power tool is charged, a battery voltage, and an internal resistance of the battery, a result of diagnosing a battery capacity, and a result of comprehensively diagnosing the battery for the electric power tool in addition to the result of diagnosing the battery for the electric power tool, and to display and output the result to a user.

The charger and the diagnostic device are both configured as a device for attaching and detaching a battery for an electric tool. Hereinafter, devices other than the tool to which the battery for the electric power tool is attached and detached will be collectively referred to as a battery mounter. Such a battery mounter is sometimes intended to be hung on a wall in view of convenience in use. As such a wall-mounted battery mounter, a wall-mounting screw to be mounted on a wall needs to be inserted into and hooked in a hook hole provided in a housing (see, for example, patent document 2). In addition, the hanging and clamping hole enables the outer portion of the shell to be communicated with the inner portion of the shell. The engaging hole is formed together with the outer shape of the other housing when the housing is formed of plastic (synthetic resin).

Patent document 1: japanese patent laid-open publication No. 2004-147360

Patent document 2: japanese Kokai publication Hei-4-004446

However, the above-described hooking hole provides communication between the outside of the housing and the inside of the housing. Therefore, foreign matter may enter the inside of the housing from the outside of the housing through the hooking hole, or static electricity may enter the inside of the housing from the outside of the housing through the hooking hole, thereby adversely affecting the electronic components incorporated therein. Further, such a problem is becoming a more significant problem today in realizing miniaturization as a battery mounter.

Disclosure of Invention

The present invention has been made in view of the above circumstances, and an object of the present invention is to prevent foreign matters and static electricity from entering the inside of a housing through a hanging hole even if the hanging hole for hanging is provided in a battery mounter in which a battery for a power tool is attached and detached, thereby preventing malfunction of a product.

In order to solve the above problem, the battery mounter of the present invention employs the following means. That is, a battery mounter to which a battery for a power tool is attached and detached according to a first aspect of the present invention is configured to: the cover member is attached to an attachment portion provided on an inner surface of the case, and closes an opening of the engaging hole from an inner side of the case.

According to the battery mounter of the first aspect of the present invention, the battery mounter can be hung on the wall by inserting the external hanging and locking member, for example, a wall-hanging screw to be mounted on the wall, into the hanging and locking hole. Thus, a wall-mounted battery mounter can be realized. Here, the lid member attached to the attachment portion can close the opening of the hooking hole from the inside of the housing. Thus, the cover member prevents foreign matter and static electricity from entering the housing from the outside of the housing through the hooking hole, and prevents malfunction of the product due to the entry of the foreign matter and static electricity.

In the battery mounter according to the second aspect of the present invention, the mounting portion includes a mounting support portion extending to a position facing the hooking hole, and the mounting support portion supports the mounted cover member from inside toward the hooking hole. In the battery mounting apparatus according to the second aspect of the present invention, the mounting support portion is provided at a position facing the engaging hole and supports the cover member from the inside toward the engaging hole. Thus, even if foreign matter presses the cover member through the hooking hole, the cover member is supported by the mounting support portion and is not easily detached. Therefore, even if foreign matter enters from the outside, the cover member is stably supported, so that erroneous operation of the product can be strongly prevented.

In the battery mounter according to the second aspect of the present invention, the mounting direction of the cover member to the mounting portion is set to be along the inner surface extension direction of the inner surface of the housing. According to the battery mounter of the third aspect, since the mounting direction of the lid member with respect to the mounting portion is set to the inner surface extending direction along the inner surface of the housing, the presence of the mounting support portion does not become an obstacle, and the lid member can be mounted to the mounting portion. This makes it possible to easily and reliably attach the cover member to the attachment portion.

In the battery mounter according to the fourth aspect of the present invention, the cover member is provided with a structure into which the mounting support portion is fitted. According to the battery mounter of the fourth aspect of the present invention, since the lid member is provided with the structure in which the mounting support portion is fitted, the effect of supporting the lid member by the mounting support portion can be improved. This enables the cover member to be more reliably attached to the attachment portion.

In the battery mounter according to a fifth aspect of the present invention, the mounting portion includes a detachment restricting portion that restricts detachment of the lid member from the mounting portion, and the mounting support portion is elastically deformed to allow the lid member to be mounted on the mounting portion beyond the detachment restricting portion. According to the battery mounter of the fifth invention, the detachment of the cover member from the mounting portion can be restricted by the detachment restricting portion. This can firmly hold the mounting state of the cover member to the mounting portion. Further, the detachment restricting portion provided in this manner can mount the cover member without interfering with the mounting support portion due to elastic deformation of the mounting support portion, and therefore, the mounting of the cover member can be easily performed.

In the battery mounting apparatus according to a sixth aspect of the present invention, in addition to the battery mounting apparatus according to any one of the first to fifth aspects, a mounting direction of the cover member with respect to the mounting portion is a vertical direction. According to the battery mounter of the sixth invention, the mounting direction of the cover member with respect to the mounting portion is the top-down direction, and therefore the action of gravity with respect to the cover member coincides with the mounting direction of the cover member. This can suppress detachment of the lid member.

In the battery mounter according to a seventh aspect of the present invention, the lid member is provided with a wall portion overlapping an edge portion provided on the mounting portion in a plate thickness direction. According to the battery mounter of the seventh invention, the cover member is provided with the wall portion overlapping with the edge portion provided to the mounting portion in the plate thickness direction, so that the edge portion of the opening of the hooking hole can be overlapped and closed. This prolongs the sealing creepage distance from the hook hole to the inside of the housing, thereby improving the sealing performance. Therefore, it is possible to further suppress the intrusion of foreign matter or static electricity from the hooking hole into the housing.

In the battery mounter according to an eighth aspect of the present invention, in addition to the battery mounter according to any one of the first to seventh aspects, the card hanging member includes: the locking device comprises a leg portion embedded in and supported by a wall, and a locking head portion having an outer diameter larger than the outer diameter of the leg portion, wherein the locking hole is formed by connecting a first hole portion into which the locking head portion can be inserted, and a second hole portion having an inner diameter smaller than the first hole portion so as to restrict the locking head portion from being inserted from falling off in a downward and upward relationship. According to the battery mounter of the eighth aspect of the present invention, the battery mounter can be mounted on the wall by inserting the external hook member, such as the wall-mounting male screw or the wall-mounting nail, into the hook hole. Thus, the general male screw can be used as a hook member, and a wall-mounted battery mounting apparatus can be provided.

Drawings

Fig. 1 is a perspective view as viewed from a surface side of the battery level detector.

Fig. 2 is a perspective view of a battery for an electric power tool to be mounted on the battery level detector.

Fig. 3 is a perspective view seen from the back side of the battery level detector.

Fig. 4 is a perspective view showing a hook structure viewed from the inside of the housing.

Fig. 5 is a perspective view showing a hook structure for attaching a cover member to an attachment portion.

Fig. 6 is a perspective view showing a mounting portion to which a lid member is not mounted.

Fig. 7 is a perspective view showing the mounting part of fig. 6 viewed from another angle.

Fig. 8 is a front view showing a mounting portion to which a lid member is not mounted.

Fig. 9 is a left side view showing the mounting portion to which the cover member is not mounted.

Fig. 10 is a plan view showing a mounting portion to which a lid member is not mounted.

Fig. 11 is a front view showing the card hanging hole viewed from the outside.

Fig. 12 is a perspective view showing an outer shape of a single piece of the lid member.

Fig. 13 is a perspective view showing an outer shape of a single piece of the lid member viewed from another angle.

Fig. 14 is a perspective view showing the inner shape of a single lid member.

Fig. 15 is a front view showing the outside of the cover member.

Fig. 16 is a left side view showing the lid member.

Fig. 17 is a front view showing a card hanging structure in which a cover member is attached to an attachment portion.

Fig. 18 is a left side view showing the card hanging structure of fig. 17.

Fig. 19 is a plan view showing the card hanging structure of fig. 17.

Fig. 20 is a sectional view of the line (XX) - (XX) in fig. 17.

Fig. 21 is a sectional view taken along the line (XXI) - (XXI) of fig. 18.

Fig. 22 is a sectional view taken along the line (XXII) - (XXII) of fig. 17.

Fig. 23 is a sectional view taken along the line (XXIII) - (XXIII) of fig. 17.

Fig. 24 is an external perspective view showing a hooking hole into which an external screw is inserted.

Fig. 25 is a sectional view showing the lines (XXV) - (XXV) of fig. 24.

Fig. 26 is an external perspective view showing a hooking hole to which an external screw is hooked.

Fig. 27 is a sectional view along the line (XXVII) - (XXVII) of fig. 26.

Fig. 28 is an exploded perspective view seen from the front side of the case and the display output part.

Fig. 29 is an exploded perspective view seen from the back side of the case and the display output portion.

Fig. 30 is a back view of the watch case and the display output portion.

FIG. 31 is a sectional view taken along line (XXXI) - (XXXI) in FIG. 1.

FIG. 32 is a sectional view along the line (XXXII) - (XXXII) in FIG. 1.

Fig. 33 is a surface view of the back shell and components mounted to the back shell.

Fig. 34 is a top view of the battery level detector.

Fig. 35 is a top view of the battery level detector.

Fig. 36 is a block diagram of a battery level detector.

Description of reference numerals

A liquid crystal display panel; a housing for an LCD; a cover for an LCD; a claw; a cable; a circuit substrate; a controller; a discharge circuit; a connector; a card reader; a battery level detector (battery installer); a table side; a back side; a battery mounting portion; sliding rails; a hook portion; a connecting terminal portion; a terminal cover; a display output; an operating portion (operating button); a power button; a housing; an inner surface; a back shell (lower side shell); 211. a sidewall; a dry battery receiving portion; a storage cover; 251.. latching the clasps; a screw; a watch case (upper case); an open window; 28.. an outer screw; side ribs; a hanging card construction; hanging and clamping holes; a left side hang-clamp hole; a right side hang latch hole; a large-diameter hole (first hole portion); an inner circumferential edge; a small-diameter hole (second hole portion); an inner circumferential edge; connecting the holes; an inner circumferential edge; an installation portion; projecting an edge portion (rim portion); a first flange portion; a second flange portion; a third flange portion; a closure portion; a peripheral wall portion; 52.. a circular portion; a support guide (mounting support); 56.. support ribs; horizontal ribs; 58.. upper and lower ribs; a lower abutment surface; a stopper (disengagement stopper); 61.. taper; an upper abutment surface; a cover member; 71.. a cover; 73.. a first cover portion; a first opposing portion; a first peripheral wall portion (wall portion); 735.. upper end; 736.. an abutment surface; a second cover portion; 741.. a second confronting portion; a second peripheral wall portion; confronting the opening part; 77.. a lower opening; 78... open end; 79.. outer peripheral surface; an insertion guide; 82.. insert hole; an insert (nested configuration); a counter wall; a left sidewall; 852.. a right sidewall; an extension; 88... a step; a battery for an electric power tool; s. an outer screw (a hanging and clamping member); s1. a screw part; s2.

Detailed Description

Hereinafter, an embodiment of a battery mounter for implementing the present invention will be described with reference to fig. 1 to 27. A battery level detector (battery checker)10 as a battery mounter of the present invention is shown in fig. 1 to 3. Fig. 1 shows a surface side of the battery level detector 10. Fig. 2 is a perspective view of the electric power tool battery B to be mounted, and fig. 3 shows the back side of the battery level detector 10. The battery level detector 10 is an electrical device to which the power tool battery B is attached and detached. The battery level detector 10 is normally driven by power supply from the electric power tool battery B attached to the battery mounting portion 11, and can be driven by a dry battery housed in a dry battery housing portion 23 (see fig. 3) when power supply from the electric power tool battery B is not available. The battery level detector 10 is configured, for example, as a wall-mounted type that is hooked on an external screw fixed to an indoor wall. Therefore, in the following description, the battery charge level detector 10 will be described based on the direction "top, bottom, left, and right on the back of the watch" defined by the battery charge level detector 10 hooked to the wall.

That is, the "up-down" direction defined in the drawing is defined based on the up-down direction of the battery level detector 10 hooked to the wall. The predetermined "front" direction shown in the drawing refers to the front side of the battery level detector 10 hooked to the wall, and the predetermined "back" direction shown in the drawing refers to the back side of the battery level detector 10 hooked to the wall. The front surface is a surface facing the user, and the back surface is a surface facing the wall surface. The "left-right" direction defined in the drawing is defined based on the left-right direction when the user looks from the front.

The battery level detector 10 thus hooked to the wall is configured as a dedicated diagnostic device for checking for an abnormality of the battery B for the electric power tool. Such a diagnostic device detects the battery state such as the number of times the battery B for the electric power tool is charged, the battery voltage, the result of diagnosing the internal resistance of the battery, the result of diagnosing the battery capacity, and the result of comprehensively diagnosing the battery B for the electric power tool in addition to the result of the diagnosis, and displays and outputs the result to the user. Therefore, the battery level detector 10 is provided with a battery mounting portion 11 for mounting the battery B for the electric power tool, and a display output portion 17 for displaying and outputting the diagnosis result.

The front surface 101 of the battery level detector 10 faces the user. A battery mounting portion 11 for mounting a battery B for an electric power tool is provided in a left side region of the front surface 101. The battery mounting portion 11 is configured to correspond to the electric power tool battery B that is attached and detached by sliding. The battery B for the electric power tool is configured as a rechargeable battery that is attached to or detached from a tool body of the electric power tool by sliding. The battery B for electric power tool is used as a power source of the electric power tool when attached to the tool body. Examples of the electric power tool to which the battery B for electric power tool is attached include electrically driven electric power tools such as a screwdriver, a wrench, a drill, a reciprocating saw, a chain saw, a band saw, a wire saw, a circular saw, a grinder, and a nail gun. Specifically, the battery B for the electric power tool includes, for example, a product "BL 1430" issued by the herda general catalog at 4 months 2012.

The battery mounting portion 11 roughly includes a slide rail 12, a hook portion 13, a connection terminal portion 14, and a terminal cover 15. The battery B for the electric power tool is attached to the battery mounting portion 11 by sliding from the top down, and conversely, is detached by sliding from the bottom up. The slide rail 12 is a guide rail that guides sliding when the battery B for electric power tool is attached and detached. The slide rails 12 are formed in a shape corresponding to a guide portion (not shown) of the battery B for electric power tool, and extend in pairs in the vertical direction in which the battery B for electric power tool slides. The hooking part 13 is formed of a concave hook. A male hook (not shown) of the mounted battery B for the electric power tool is fitted into the hook portion 13. When the electric power tool battery B is removed, a lock lever (not shown) on the electric power tool battery B side is operated to release the engagement of the male hook of the electric power tool battery B with the hook portion 13.

A connection terminal portion 14 is provided at the center of the battery mounting portion 11. A terminal (not shown) on the side of the battery B for electric power tool is connected to the connection terminal portion 14. The connection terminal portion 14 is protected by a terminal cover 15. The terminal cover 15 slides in the vertical direction by sliding when the battery B for electric power tool is attached and detached. Specifically, the terminal cover 15 is pressed downward by the battery B for electric power tool when the battery B for electric power tool is mounted to the battery mounting portion 11. Then, the connection terminal portion 14 hidden until then is exposed, and a connection terminal (not shown) provided in the battery B for electric power tool is connected to the connection terminal portion 14. Further, since the battery B for electric power tool is mounted by sliding downward from above in the direction of gravity, the battery B for electric power tool can be easily mounted on the battery mounting portion 11, and the battery B for electric power tool is less likely to be detached from the battery mounting portion 11 after being mounted on the battery mounting portion 11.

On the other hand, a display output unit 17 and an operation unit 18 are provided in the right side area of the front surface 101. The display output unit 17 can display and output the diagnosis result for the user to visually recognize. The operation unit 18 is a button for operating the display content related to the display output. The user can appropriately change the display contents displayed and output on the display output unit 17 by appropriately pressing the operation unit 18. Further, a power button 19 is provided in the right side area of the front surface 101. The battery level detector 10, which is attached with the electric tool battery B in this manner and displays and outputs the result of the diagnosed electric tool battery B, has a housing as an exterior. The housing 20 is appropriately provided with electronic components inside.

The case 20 is formed in a rectangular shape in a plan view, has a case 20 functioning as an exterior and a housing case, and is formed by integrating a back case (lower case) 21 and a case (upper case) 27. The back case 21 and the watch case 27 are integrally fixed via an external screw 28 as shown in fig. 3. Specifically, back case 21 and wristwatch case 27 are fixed to each other by external screws 28 at four corners of a rectangular shape in plan view. Further, the extended plane of the back case 21 becomes the back side surface 102 of the battery level detector 10. The back surface 102 is a surface facing a wall when the battery level detector 10 is hung on the wall.

A pair of hooking holes 31 are provided in the back side surface 102 of the back case 21. The pair of hook holes 31 are holes for forming a wall-hanging type. The pair of click holes 31 are defined by two left click holes 311 set near the edge on the left side (right side in the drawing) and right click holes 312 set near the edge on the right side (left side in the drawing). That is, the left side hanging hole 311 and the right side hanging hole 312 are provided at left and right symmetrical positions of the case 20 so as to be left and right balanced when the battery level detector 10 is hung on the wall. The left side engaging hole 311 and the right side engaging hole 312 are provided in a range above the half of the housing 20 so as to be vertically balanced when the housing is engaged with the wall.

The left side engaging hole 311 and the right side engaging hole 312 are formed by the same engaging hole 31. Therefore, the right side hooking hole 312 will be described as an example in the following description of the hooking hole 31. A dry battery housing portion 23 for housing dry batteries is provided on the back surface 102 of the housing 20. The dry battery housing part 23 is closed by a housing cover 24. The storage cover 24 is locked to the back case 21 by a locking hook 251 and fixed by a fastening screw 252.

The hanging card hole 31 becomes a part of the hanging card structure 30. Fig. 4 is a perspective view showing the hook structure 30 as viewed from the inside of the housing 20. Fig. 5 is a perspective view showing the engaging structure 30 for attaching the cover member 70 to the attaching portion 40. Fig. 6 is a perspective view showing the mounting portion 40 to which the cover member 70 is not mounted. Fig. 7 is a perspective view showing the mounting portion 40 of fig. 6 from another angle. Fig. 8 is a front view showing the mounting portion 40 to which the cover member 70 is not mounted. Fig. 9 is a left side view showing the mounting portion 40 to which the cover member 70 is not mounted. Fig. 10 is a plan view showing the mounting portion 40 to which the cover member 70 is not mounted. Fig. 11 is a front view showing the card hanging hole 31 viewed from the outside. Fig. 12 is a perspective view showing an outer shape of a single product of the cover member 70. Fig. 13 is a perspective view showing an external shape of a single piece of the lid member 70 as viewed from another angle. Fig. 14 is a perspective view showing the inner shape of a single lid member 70. Fig. 15 is a front view showing the outside of the cover member 70. Fig. 16 is a left side view showing the lid member 70.

Fig. 17 to 27 show a hook structure 30 in which the cover member 70 is attached to the attachment portion 40. That is, fig. 17 is a front view showing the card hanging structure 30 in which the cover member 70 is attached to the attachment portion 40. Fig. 18 is a left side view showing the card hanging structure 30 of fig. 17. Fig. 19 is a plan view showing the card hanging structure 30 of fig. 17. Fig. 20 is a sectional view of the line (XX) - (XX) in fig. 17. Fig. 21 is a sectional view taken along the line (XXI) - (XXI) of fig. 18. Fig. 22 is a sectional view taken along the line (XXII) - (XXII) of fig. 17. Fig. 23 is a sectional view taken along the line (XXIII) - (XXIII) of fig. 17. Fig. 24 is an external perspective view showing the hook hole 31 into which the external screw S is inserted. Fig. 25 is a sectional view along the line (XXV) - (XXV) of fig. 24. Fig. 26 is an external perspective view showing the engaging hole 31 to which the outer screw S is engaged. Fig. 27 is a sectional view along the line (XXVII) - (XXVII) of fig. 26.

The hanging card structure 30 includes: the locking device includes a locking hole 31 provided in the back case 21, an attachment portion 40 provided in the back case 21, and a cover member 70 attached to the attachment portion 40. The hooking hole 31 is formed to penetrate the back surface 102 of the back case 21 from the back surface to the front surface. In other words, the locking hole 31 communicates the inside and the outside of the housing 20 so that an external screw S (see fig. 25 and 27) can be inserted into the housing 20. The screw head S2 of the outer screw S inserted into the housing 20 from the engaging hole 31 can engage with the engaging hole 31. The outer screw S shown in fig. 24 to 27 corresponds to an external hooking member of the present invention. The outer screw S has a screw portion S1 and a screw head S2, similar to widely used outer screws. The screw portion S1 corresponds to the leg portion of the present invention embedded in the wall and supported thereby. The screw head S2 corresponds to a hook head portion of the present invention having an outer diameter larger than that of the screw portion S1. The hook of the outer screw S will be described later with reference to fig. 24 to 27. As shown in fig. 11, the hanging-catching hole 31 is a communication hole also commonly called a keyhole-shaped hole. The hooking hole 31 is formed by connecting two holes 33, 35 having different diameters and lengths.

As shown in fig. 11, the hook hole 31 is formed such that the lower large-diameter hole 33 and the upper small-diameter hole 35 are connected to each other via a connection hole 37. The large-diameter hole 33 is formed as a hole having a relatively longer diameter inner peripheral edge 34 than the diameter length of the small-diameter hole 35. Conversely, the small-diameter hole 35 is formed as a hole of the inner peripheral edge 36 having a diameter relatively shorter than the diameter length of the large-diameter hole 33. The connection hole 37 is formed as a hole of an inner peripheral edge 38 extending straight downward with the diameter of the small-diameter hole 35 kept intact. The large-diameter hole 33 corresponds to the first hole of the present invention, and the inner peripheral edge 34 has a diameter into which the screw head S2 of the external screw S can be inserted. On the other hand, the small-diameter hole 35 is a hole corresponding to the second hole of the present invention, and the inner peripheral edge 36 has a diameter capable of restricting the removal of the screw head S2 of the outer screw S. The diameter of the inner peripheral edge 38 of the connection hole 37 is the same as the diameter of the small-diameter hole 35. The small-diameter hole 35 and the large-diameter hole 33 set in this way are arranged in an up-down relationship, and they are connected to each other via a connection hole 37 to form a hook hole 31.

The mounting portion 40 is provided on an inner surface 201 of the housing 20, which is an inner surface side of the hooking hole 31. The cover member 70 is attached to the attachment portion 40. The lid member 70 attached to the attachment portion 40 closes the opening of the hooking hole 31 from the inside of the housing 20. The cover member 70 is configured to close the hook hole 31 into which the male screw S is inserted from the inside of the housing 20. The attachment direction of the cover member 70 to the attachment portion 40 is set to a direction from the small-diameter hole 35 to the large-diameter hole 33 downward. In other words, the mounting direction of the cover member 70 is a downward direction from which the inner surface 201 of the housing 20 extends. The cover member 70 is attached to the attachment portion 40 by sliding the cover member 70 in the attachment direction. The mounting portion 40 is provided on the inner surface 201 side of the hooking hole 31. The mounting portion 40 is provided in the same structure on both the left side (reference numeral 311 in the drawing) and the right side (reference numeral 312 in the drawing) as the hook hole 31.

The mounting portion 40 will be described with reference to fig. 4 to 11. In the drawings other than fig. 6 and 7, the periphery of the mounting portion 40 is not shown. The mounting portion 40 generally includes a projecting edge portion 41, a closing portion 50, a support guide portion 55, and a stopper portion 60. The projecting edge portion 41 corresponds to a first projecting edge of the present invention. The protruding edge portion 41 is provided along the inner peripheral edges 34, 36, 38 of the hooking hole 31. The projecting edge portion 41 is formed to project from the inner peripheral edges 34, 36, and 38 of the hanging hole 31 toward the inside of the housing 20. Specifically, the first protruding edge portion 44 is provided along the inner peripheral edge 34 of the large-diameter hole 33, the second protruding edge portion 46 is provided along the inner peripheral edge 36 of the small-diameter hole 35, and the third protruding edge portion 48 is provided along the inner peripheral edge 38 of the connection hole 37. The first to third projecting edge portions 44, 46, 48 are connected to each other in the same manner as the inner peripheral edges 34, 36, 38 that become the hooking holes 31, and project toward the inside of the housing 20. Further, a lower half of the first projecting edge portion 44 is formed so as to be connected to a closing portion 50 described in detail below. Conversely, the upper half of the first projecting edge portion 44 and the second and third projecting edge portions 46 and 48 are formed to project toward the inside of the housing 20 by a length equal to the plate thickness of the back case 21.

The closing portion 50 has: a peripheral wall 51 formed so that the projecting edge 41 of the lower half of the large-diameter hole 33 projects further toward the inside of the housing 20, and a circular portion 52 connected to the peripheral wall 51 and disposed to face the large-diameter hole 33 so as to cover the large-diameter hole 33. In other words, the peripheral wall 51 connects the lower half of the circular portion 52 disposed opposite the large-diameter hole 33 to the lower half of the inner peripheral edge 34 of the large-diameter hole 33. The support guide 55 extends upward from the upper end of the circular portion 52. The support guide 55 corresponds to the mounting support portion of the present invention. The support guide 55 extends upward from below to a position facing the engaging hole 31. The support guide 55 supports the attached cover member 70 from the inside of the housing 20 toward the hook hole 31. Specifically, the support guide 55 extends upward from the upper end of the circular portion 52 and is disposed to face the small diameter hole 35 and the connection hole 37. As shown in fig. 8 and 11, the circular portion 52 is formed to be slightly smaller than the opening shape of the large-diameter hole 33, and the support guide portion 55 is also formed to be slightly smaller than the opening shapes of the small-diameter hole 35 and the connection hole 37.

The circular portion 52 and the inner surface 201 of the housing 20 supporting the guide portion 55 are provided with support ribs 56. The support rib 56 has a horizontal rib 57 extending in the left-right direction, and an upper and lower rib 58 extending in the up-down direction. The horizontal rib 57 is provided so as to extend in the horizontal direction with respect to the lower side range of the closing portion 50. The upper and lower ribs 58 are provided to extend in the vertical direction with respect to the upper range of the closing portion 50 and the support guide portion 55. The support guide 55 applies appropriate strength to the closing section 50 and the support guide 55. As shown in fig. 9, the support ribs 56 (horizontal ribs 57, upper and lower ribs 58) are set to have a thickness equal to the thickness of the back shell 21. As shown in fig. 6 and 7, the horizontal rib 57 is connected to the side ribs 29 connected from the left and right side walls 211, 212 of the back case 21. The upward facing surface of the horizontal rib 57 functions as a lower contact surface 59 against which the open end 78 of the cap member 70 contacts when the cap member 70 is attached to the attachment portion 40.

A stopper 60 is provided above the engaging hole 31. The stopper 60 is formed to protrude from the inner surface 201 of the housing 20 toward the inside of the housing 20. Specifically, the stopper 60 has a rectangular shape in front view as shown in fig. 8, and is formed in a shape gradually protruding toward the inside of the housing 20 from the top to the bottom as shown in fig. 9. The stopper 60 corresponds to a detachment restricting portion of the present invention, and restricts detachment of the cover member 70 from the mounting portion 40. Specifically, the surface of the stopper portion 60 facing the inside of the housing 20 is set as a tapered surface 61 that protrudes toward the inside of the housing 20 toward the lower side. The tapered surface 61 is formed as a guide surface when the cover member 70 is attached to the attachment portion 40. When the cap member 70 is attached to the attachment portion 40 in this manner, the upper end 735 of the cap member 70 is caused to pass over the tapered surface 61. At this time, the support guide 55 is slightly elastically deformed toward the inside (inner side) of the housing 20. The support guide 55 thus supporting the cover member from the inside allows the cover member 70 to be mounted on the mounting portion 40 over the stopper portion 60. The cover member 70 that has passed over the tapered surface 61 is disposed below the stopper portion 60 and attached to the attachment portion 40.

The surface of the stopper 60 facing the lower side of the housing 20 is set as an upper contact surface 62 facing the lower contact surface 59. The upper contact surface 62 is formed by a step of the protruding stopper portion 60. The upper contact surface 62 restricts the movement of the cap member 70 in the separation direction when the cap member 70 is attached to the attachment portion 40. The upper abutment surface 62 supports the cap member 70 in a mounted state with respect to the mounting portion 40 so as to sandwich the cap member 70 together with the lower abutment surface 59. Therefore, the lower abutment surface 59 and the upper abutment surface 62 are formed by abutment surfaces extending in a direction orthogonal to the inner surface 201 of the housing 20. When the cap member 70 attached to the attachment portion 40 attempts to move upward from the bottom, the abutment surface 736 of the cap member 70 abuts against the upper abutment surface 62 of the stopper portion 60 to restrict the sliding of the cap member 70, thereby restricting the detachment of the cap member 70 from the attachment portion 40.

The lid member 70 will be described with reference to fig. 12 to 20. The lid member 70 is a resin molded article. The lid portion 71 has an outer peripheral shape (a shape close to a keyhole in a front view) substantially matching the opening shape of the engaging hole 31, and has a lid shape closing the opening shape of the engaging hole 31. The cover member 70 roughly has a cover portion 71 and an insertion guide portion 81. Specifically, the lid 71 is formed by vertically connecting the first lid 73 and the second lid 74. The first lid 73 is provided to cover the opening shapes of the small-diameter hole 35 and the connection hole 37. The first lid 73 includes: a first facing portion 731 disposed to face each other so as to cover the small-diameter hole 35 and the connection hole 37, and a first peripheral wall portion 732 forming a peripheral wall along the outer periphery of the first facing portion 731. The first facing portion 731 is formed to cover the small diameter hole 35 and the connection hole 37 and to face the small diameter hole 35 and the connection hole 37. The first peripheral wall portion 732 is formed to extend in a sidewall shape from the periphery of the first facing portion 731. The upper end 735 of the first peripheral wall portion 732 is formed in a surface shape as a contact surface 736 against which the upper contact surface 62 of the stopper portion 60 contacts.

In contrast, the second cover 74 covers the opening shape of the upper half of the large-diameter hole 33. The second cover 74 includes: a second facing portion 741 facing each other so as to cover the upper half of the large-diameter hole 33, and a second peripheral wall portion 742 forming a peripheral wall along the outer periphery of the second facing portion 741 (see fig. 14). The second facing portion 741 is formed to cover the upper half of the large-diameter hole 33 and to face the upper half of the large-diameter hole 33. The second peripheral wall portion 742 extends from the periphery of the second opposing portion 741 in a sidewall shape. The cover member 70 is provided with openings 75 and 77 when attached to the attachment portion 40. That is, the lid member 70 is provided with: a facing opening 75 provided in a range facing the engaging hole 31, and a lower opening 77 provided in a lower range. The facing opening 75 is defined by the edges of the first peripheral wall portion 732 and the second peripheral wall portion 742 facing the back sides. The lower opening 77 is defined by an edge of the second peripheral wall 742 facing downward. The lower opening 77 is formed to have an opening shape capable of accommodating the protruding edge 41 of the mounting portion 40 and the closing portion 50. The lower end of the lower opening 77 is set as an opening end 78 of the lid member 70 that abuts against the lower abutment surface 59 of the mounting portion 40.

An insertion guide 81 is provided on the outer peripheral surface 79 of the cover 71 so as to communicate with the cover 71. The insertion guide 81 is provided to face the lower half of the lid 71. Conversely, the insertion guide 81 and the cover 71 are connected in such a manner that two inner and outer stages are arranged in parallel. The insertion guide 81 is formed with an insertion hole 82 into which the support guide 55 of the mounting portion 40 is inserted. In other words, the insertion portion 83 is provided as a structure in which the support guide portion 55 is fitted from below to above. The insertion guide 81 includes: an insertion portion 83 provided with an insertion hole 82, and an extension portion 87 covering a lower portion of the mounting portion 40. The insertion portion 83 has a facing wall 84 disposed to face the outer peripheral surface 79 of the lid portion 71.

Left and right side walls 851 and 852 connecting the counter wall 84 to the outer peripheral surface 79 are provided on the left and right sides of the counter wall 84. Here, an insertion hole 82 extending vertically is provided between the opposing wall 84 and the outer peripheral surface 79 opposing each other. An extension 87 extending to cover the lower portion of the mounting portion 40 is provided below the counter wall 84. The extension 87 extends laterally downward to cover the circular portion 52 of the mounting portion 40. Further, a pair of step portions 88 are provided on outer peripheral portions on both right and left sides of the insertion portion 83. The step portion 88 fills the gap between the protruding edge portion 41 and the housing 20, and extends the creepage distance from the outside of the housing 20 to the substrate provided inside the housing 20, thereby improving the sealing performance inside and outside the housing 20. Therefore, the electrical insulation performance of the substrate provided inside the case 20 is improved relative to the outside of the case 20. If the electrical insulating performance is improved in this manner, for example, static electricity is less likely to be scattered from the outside of the case 20 toward the substrate provided inside the case 20, and malfunction of the device and circuit failure can be suppressed.

An overlapping configuration is provided between the cover member 70 mounted to the mounting portion 40 and the mounting portion 40. That is, the first peripheral wall 732 and the second peripheral wall 742 of the lid member 70 overlap the first to third projecting edge portions 44, 46, 48 (projecting edge portions 41) provided on the mounting portion 40 in the plate thickness direction. The first to third projecting edge portions 44, 46, and 48 are provided along the inner peripheral edges 34, 36, and 38 of the hooking hole 31 as described above. The opening end 78 of the cover member 70 overlaps the horizontal rib 57 provided on the mounting portion 40 in the plate thickness direction. In other words, the cover member 70 attached to the attachment portion 40 is formed so as to overlap in the plate thickness direction around the card hanging hole 31. The overlapping structure of the lid member 70 attached to the attachment portion 40 is set in the entire circumferential range of the hooking hole 31, and the overlapping length is set so as to match the length of the approximate plate thickness of the housing 20.

As shown in fig. 24 to 27, the external screw S is hooked to the hooking hole 31. Specifically, first, the male screw S is inserted into the large-diameter hole 33 of the hooking hole 31 as shown in fig. 24 and 25. The illustrated outer screw S is a general wall-hanging outer screw fixed by screwing the screw portion S1 into a wall. The large-diameter hole 33 has an inner peripheral edge 34 into which a screw head S2 of the external screw S can be inserted. Here, when the battery level detector 10 is slid downward relative to the outer screw S, it becomes as shown in fig. 26 and 27. That is, the outer screw S moves from the large-diameter hole 33 toward the small-diameter hole 35 through the connecting hole 37. Here, the diameter of the inner peripheral edge 36 of the small diameter hole 35 is set to a diameter capable of restricting the separation of the screw head S2 of the outer screw S. Therefore, the screw head S2 of the outer screw S is hooked to the hooking hole 31.

According to the battery level detector 10 of the above embodiment, the following operational effects can be achieved. That is, according to the battery level detector 10 described above, the screw portion S1 of the outer screw S for wall hanging can be inserted into the hanging hole 31, and the battery level detector 10 can be hung on the wall. This enables the wall-mounted battery level detector 10 to be provided. Here, the lid member 70 attached to the attachment portion 40 can close the opening of the hooking hole 31 from the inside of the housing 20. Thus, the cover member 70 prevents foreign matter or static electricity from entering the housing 20 from the outside of the housing 20 through the hooking hole 31, and prevents malfunction of the product due to the entry of the foreign matter or static electricity.

In addition, according to the battery level detector 10 described above, the support guide 55 is provided at a position facing the hook hole 31 to support the cover member 70 from the inside toward the hook hole 31. Thus, even if the foreign matter presses the cover member 70 through the hooking hole 31, the cover member 70 is supported by the support guide 55 and is not easily detached. Therefore, even if foreign matter from the outside enters, the cover member 70 is firmly supported, and thus malfunction of the product can be strongly prevented. In addition, according to the battery level detector 10 described above, since the mounting direction of the lid member 70 to the mounting portion 40 is set to the extending direction of the inner surface 201 extending along the inner surface 201 of the housing 20, the presence of the support guide portion 55 does not become an obstacle, and the lid member 70 can be mounted to the mounting portion 40. This enables the cover member 70 to be easily and reliably attached to the attachment portion 40.

In addition, according to the battery level detector 10 described above, since the lid member 70 has a structure in which the support guide 55 is fitted, the support of the lid member 70 by the support guide 55 can be improved. This enables the cover member 70 to be more reliably attached to the attachment portion 40. In addition, according to the battery level detector 10 described above, the stopper portion 60 can restrict the lid member 70 from coming off the mounting portion 40. This can firmly hold the attachment state of the cover member 70 to the attachment portion 40. Further, the stopper portion 60 provided in this manner can mount the cover member 70 without interfering with the support guide portion 55 by elastic deformation of the support guide portion 55, and therefore, the mounting of the cover member 70 can be easily performed.

In addition, according to the battery level detector 10 described above, since the mounting direction of the cover member 70 to the mounting portion 40 is the top-down direction, the action of gravity on the cover member 70 coincides with the mounting direction of the cover member 70. This can suppress detachment of the lid member 70. Further, since the first peripheral wall portion 732 and the second peripheral wall portion 742 of the cover member 70 overlap the first to third projecting edge portions 44, 46, 48 (projecting edge portions 41) provided in the mounting portion 40 in the plate thickness direction, the edge portions of the opening of the hanging hole 31 can be overlapped and closed. This prolongs the closing creepage distance from the hook hole 31 to the inside of the housing 20, thereby improving the closing property. Therefore, the intrusion of foreign matter and static electricity from the hooking hole 31 into the housing 20 can be further suppressed. In addition, according to the battery level detector 10, the battery level detector 10 can be hung on a wall by inserting the external screw S for hanging into the hanging hole 31. This enables the wall-mounted battery level detector 10 to be used as a hook member using a general male screw.

The battery mounter according to the present invention is not limited to the above-described embodiment, and can be configured with modifications as appropriate. For example, in the above-described embodiment, the battery level detector 10 is exemplified as an example of the battery mounter, and the description is given. However, the battery mounter according to the present invention may be configured as a charger for charging a battery for a power tool, for example, and any appropriate configuration may be adopted as long as it can attach and detach the battery for the power tool. In addition, as the lid member of the present invention, an appropriate configuration can be adopted as long as it is configured to be attached to an attachment portion set on the inner surface of the housing so as to close the opening of the hooking hole from the inside of the housing. Specifically, the structure for closing the opening of the engaging hole 31 of the lid member 70 from the inside of the housing 20 is not limited to the structure of the lid 71 described above, and an appropriate shape can be selected. The attachment direction of the cover member 70 may be configured to attach the cover member 70 to the hook hole 31 in the left-right direction, or configured to attach the cover member 70 to the hook hole 31 in the opposite direction. The mounting portion of the present invention may be configured without the stopper portion 60, for example, and may be provided as a function of the disengagement restricting portion in the right-left direction as appropriate.

The battery mounter is of a carry type, and there is a fear that a user may drop it by mistake. When dropped, for example, a display output portion (liquid crystal display panel) of the battery mounter or the like may be damaged. Therefore, a battery mounter in which the liquid crystal display panel is hardly broken has been conventionally required. For this reason, the battery mounter may also have the following configuration a instead of or in addition to the above configuration.

As described above, the battery for the electric power tool is attached to and detached from the battery mounting device. The battery mounter has, as configuration a, for example: the liquid crystal display device includes a liquid crystal display panel for displaying a state of a battery for a power tool, a casing for an LCD for holding a back surface of the liquid crystal display panel, a cover for an LCD which covers a surface of the liquid crystal display panel and is formed of a material having transparency and is attached to the casing for the LCD, and a casing in which an opening window for opening the cover for the LCD is formed. Also within the housing, the LCD cover is not mounted to the housing but rather the LCD housing is mounted to the housing.

Therefore, the liquid crystal display panel is configured to be less susceptible to external force. For example, when the housing is deformed by a force, the deformation is transmitted from the housing to the liquid crystal display panel through the LCD housing. Therefore, the force applied to the liquid crystal display panel is reduced by the LCD case and transmitted to the liquid crystal display panel. Therefore, the force transmitted to the liquid crystal display panel is reduced, and the breakage of the liquid crystal display panel can be suppressed. There are cases where the LCD cover is subjected to a force. The force is transmitted from the LCD cover to the liquid crystal display panel through the LCD housing. Therefore, the force applied to the liquid crystal display panel is reduced by the LCD case and transmitted to the liquid crystal display panel. Therefore, the force transmitted to the liquid crystal display panel is reduced, and the breakage of the liquid crystal display panel can be suppressed.

In the battery mounter having the above configuration a, one of the two parts of the LCD housing and the LCD cover may have a claw hooked on a hooking portion formed in the other. Therefore, the claw connects the LCD case and the LCD cover properly. For example, the LCD cover is positioned closer to the front surface side than the LCD housing. Therefore, the force applied to the LCD cover is received by the LCD case while being directed to the LCD case. Therefore, the LCD cover and the LCD housing can be connected with a small force to such an extent that they do not come off. Therefore, the LCD case and the LCD cover can be connected by a relatively simple structure such as a claw.

In the battery mounter having the above configuration a, the LCD cover may have a curved surface that bulges out to the front side of the central portion than the peripheral portion. Therefore, the LCD cover is relatively difficult to break by external force. For example, when an external force is applied to the center of the LCD cover, the force is dispersed toward the outer periphery by the curved surface, and thus the LCD cover can receive the external force in a wide range.

In the battery mounter having the above configuration a, the housing may also have a protrusion formed along the periphery of the opening window and protruding outward beyond the LCD cover. Therefore, the protrusion portion is likely to receive an external force earlier than the LCD cover. Thus, the external force applied to the LCD cover is reduced, and the damage of the LCD cover can be prevented.

In the battery mounter having the above configuration a, the battery mounter may also have operation buttons, a controller, and a cable. The operation button is operated to switch the screen of the liquid crystal display panel, and is provided in the housing so as to be located near one edge of the liquid crystal display panel. The controller is arranged on the shell and sends signals to the liquid crystal display panel. The cable extends and protrudes from the other edge of the liquid crystal display panel opposite to the one edge to connect the liquid crystal display panel with the controller.

Therefore, no cable is disposed between the liquid crystal display panel and the operation button. Therefore, the operation buttons are disposed close to the liquid crystal display panel, and the buttons can be easily operated in accordance with the display screen of the liquid crystal display panel. On the other hand, the cable is provided without being affected by a narrow space between the liquid crystal display panel and the operation button. Therefore, the cable can connect the liquid crystal display panel and the controller in a relatively wide space.

In the battery mounter having the above structure a, the housing has: a back case, and a watch case mounted to the back case and formed with an opening window. An LCD housing may be attached to the watch case. This makes it possible to accurately and easily align the LCD case and the liquid crystal display panel with respect to the opening window of the case.

In the battery mounter having the above structure a, the housing has: a back case, and a watch case mounted to the back case and formed with an opening window. The back case may be provided with a controller for sending a signal to the liquid crystal display panel and an LCD case in which the liquid crystal display panel is mounted. Therefore, the liquid crystal display panel and the controller are both mounted on the back shell. Thereby enabling the liquid crystal display panel to be electrically connected to the controller before the case is mounted to the back case.

The above-described structure will be described in detail below with reference to the drawings. As shown in fig. 1, the battery level detector 10 is 1 example of a battery mounter, and has a housing 20 and a display output section 17. The case 20 includes a back case 21 and a case 27 attached to the back case 21, and the display output unit 17 is provided in the case 20.

As shown in fig. 28, the display output unit 17 includes: a liquid crystal display panel (LCD panel) 1, an LCD casing 2, and an LCD cover 3. The liquid crystal display panel 1 has a rectangular plate shape, and displays the diagnostic result of the electric power tool battery B diagnosed by the battery level detector 10. The LCD casing 2 is disk-shaped and has a main body plate 2a for holding the liquid crystal display panel 1. The back surface of the liquid crystal display panel 1 is bonded or attached to the front surface of the main body plate 2a with an adhesive or the like.

As shown in fig. 28 and 29, the LCD casing 2 has a wall portion 2b along the outer periphery of the main body plate 2 a. The wall portion 2b is thicker than the liquid crystal display panel 1, and protects the outer periphery of the liquid crystal display panel 1. The wall portion 2b has a cutout 2f at the upper edge of the main body plate 2a, through which the cable 4 is inserted. The cable 4 is, for example, a flat cable, extends from the upper edge of the liquid crystal display panel 1 through the slit 2f, and is connected to the circuit board 6 shown in fig. 33.

As shown in fig. 28 and 29, the LCD cover 3 is attached to the LCD casing 2. The LCD case 2 has a hook portion 2c protruding outward from the wall portion 2 b. The engaging portion 2c includes, for example, an engaging portion 2c protruding upward from the left and right upper edges of the wall portion 2b, and an engaging portion 2c protruding downward from the central portion of the lower edge of the wall portion 2 b. Each engaging portion 2c is formed with a through hole through which the claw 3e of the LCD cover 3 is inserted.

As shown in fig. 28 and 29, the LCD case 2 is attached to the case 20. The LCD case 2 has a plurality of mounting portions 2d and 2e protruding outward from the wall portion 2 b. The mounting portion 2d extends upward from the back surface of the upper left and upper right regions of the main body plate 2 a. The mounting portion 2e protrudes downward from the lower left and lower right portions of the wall portion 2 b. The mounting portions 2d and 2e have through holes through which the legs of the screws 5 are inserted. The legs of the screws 5 are screwed with bosses 27e protruding from the back surface of the case 27 toward the back surface side, and the heads of the screws 5 hold the mounting portions 2d, 2 e. Thus, LCD case 2 is attached to case 27 by screws 5 as shown in fig. 30.

As shown in fig. 28 and 29, the LCD cover 3 is rectangular plate-shaped and made of a highly transparent resin. The LCD cover 3 includes: a main body portion 3c opened through the opening window 27a, a flange portion 3a along the outer periphery of the main body portion 3c, and a claw 3e for attaching the LCD cover 3 to the LCD casing 2. As shown in fig. 31, body portion 3c is fitted into opening window 27a and has a shape along front surface 101 of case 27. The cover 3 for the LCD is thus aesthetically pleasing. Body portion 3c is located slightly inside front surface 101 of case 27. Therefore, the main body 3c is less likely to receive external force, and the LCD cover 3 is less likely to be broken.

As shown in fig. 31, the surface of the main body portion 3c of the LCD cover 3 is shaped to follow the front surface 101 of the wristwatch case 27, and has a curved surface in which the central portion bulges out to the front surface side than the upper and lower portions. Therefore, when the body 3c receives a force, the force is dispersed in the vertical direction by the curved surface. As shown in fig. 28, case 27 has a projecting portion 27b projecting toward the front side along the outer periphery of opening window 27a. Therefore, the external force is applied to the protrusion 27b earlier than the LCD cover 3, and the application of the external force to the LCD cover 3 can be reduced.

As shown in fig. 28 and 29, the flange portion 3a of the LCD cover 3 is positioned on the back surface side of the main body portion 3c, and is formed in a ring shape along the main body portion 3 c. A positioning protrusion 3d is formed on the surface of the flange portion 3a so as to be adjacent to the outer peripheral edge of the body portion 3 c. Projection 3d is provided in recess 27g formed along opening window 27a on the back surface of case 27. The surface of projection 3d abuts or abuts against the bottom surface of recess 27g, and determines the position of LCD cover 3 in the front-back direction of case 27. The outer peripheral end of projection 3d abuts or abuts against the peripheral wall of recess 27g, and determines the vertical and horizontal positions of LCD cover 3 with respect to case 27.

As shown in fig. 28 and 29, the LCD cover 3 has a plurality of claws 3e to be attached to the LCD case 2. The claws 3e extend from the upper left edge portion, the upper right edge portion, and the lower center portion of the LCD cover 3 toward the rear surface side. Each claw 3e has a distal end portion protruding outward. The claws 3e elastically deform when inserted into the engaging portions 2c of the LCD housing 2 from the front side to the back side, and engage with the engaging portions 2c by elastically restoring the distal end portions. The claws 3e prevent the LCD cover 3 from being detached from the LCD housing 2 toward the front side. The claws 3e are elastically deformable in the vertical direction, and elastically hold the LCD cover 3 in the vertical direction with respect to the LCD housing 2. On the other hand, the claws 3e are less likely to elastically deform in the left-right direction, and limit the amount of movement of the LCD cover 3 in the left-right direction with respect to the LCD housing 2.

As shown in fig. 28 and 29, the rear surface of the flange portion 3a of the LCD cover 3 abuts against the front surface end of the wall portion 2b of the LCD case 2. Therefore, the LCD case 2 supports the LCD cover 3 from the back side. Therefore, when the LCD cover 3 receives an external force from the front surface side, the LCD cover 3 is supported by the wall portion 2b of the LCD case 2 from the rear surface side.

As shown in fig. 33, the circuit board 6 includes a board main body 6a, a controller 6b, and a discharge circuit 6c. The controller 6B is, for example, a Micro Control Unit (MCU), and is communicably connected to the battery B shown in fig. 2 mounted on the battery level detector 10. The controller 6b has: a program (firmware) for diagnosing the state of battery B based on a communication signal transmitted from battery B, and a flash memory for storing an algorithm and the like. Discharge circuit 6c is connected to battery B to discharge battery B. The controller 6B can also diagnose the battery B by measuring the discharge capacity of the battery B at the time of discharge.

As shown in fig. 33 and 36, a connector 6d is attached to the board body 6a, and a cable such as a micro USB is connected to the connector 6d. The circuit board 6 is connected to a computer (PC) via a cable, and the controller 6B transmits a diagnosis result of the battery B or the like to the computer as a signal. The computer can receive and display the diagnosis result of battery B. The circuit board 6 may be connected to the printer by a cable. The printer may print a diagnosis result of battery B or the like.

As shown in fig. 33 and 36, a card reader 6e is attached to the board main body 6a, and a memory card such as an SD card is inserted into the card reader 6e. The memory card is connected to the controller 6b through the card reader 6e so as to be able to communicate with each other. The program (firmware) stored in the controller 6b can be updated based on the information stored in the memory card. Alternatively, the diagnostic result of battery B stored in controller 6B and the like are transmitted to the memory card and can be recorded. A memory card storing the diagnostic result of battery B and the like may be connected to a computer, and the diagnostic result of battery B and the like may be read by the computer, displayed on a display, and printed.

As shown in fig. 34 and 35, the housing 20 is formed with openings 20a and 20b for opening the connector 6d and the card reader 6e. Covers 7a and 7b for covering the openings 20a and 20b are detachably attached to the housing 20.

As shown in fig. 36, the controller 6b is connected to the liquid crystal display panel 1 via the cable 4 shown in fig. 28 so as to be able to communicate with it. The liquid crystal display panel 1 receives the signal transmitted from the controller 6B, and displays the diagnosis result of the battery B.

As shown in fig. 33 and 36, an operation portion (operation button) 18 and a power button 19 are mounted on the board main body 6 a. The operation unit 18 includes a return switch SW1 as a push button and a send switch SW2 as a push button. The output switch SW2 is pressed to send a signal to the controller 6b, and the controller 6b sends a display signal to the liquid crystal display panel 1 so that the display screen of the liquid crystal display panel 1 becomes the next screen. The return switch SW1 is pressed to send a signal to the controller 6b, and the controller 6b sends a display signal to the liquid crystal display panel 1 so that the display screen of the liquid crystal display panel 1 becomes the previous display screen. The power button 19 is a push button, and sends a signal to the controller 6b by being pushed. The controller 6b can switch between a connected state in which the electric power from the driving dry battery is supplied to the controller 6b and the liquid crystal display panel 1 and a disconnected state in which the electric power is cut off, based on a signal from the power button 19.

As shown in fig. 31 and 32, the operation unit 18 and the power button 19 have legs 18a and 19a and heads 18c and 19 c. The legs 18a and 19a have switch mechanisms 18b and 19b at their ends electrically connected to the circuit board 6, and the operation of the operation unit 18 and the power button 19 is converted into an electric signal by the switch mechanisms 18b and 19 b.

As shown in fig. 31 and 32, operation portion 18 and heads 18c and 19c of power button 19 are shaped along front surface 101 of case 27, and are located slightly behind front surface 101. Therefore, the operation unit 18 and the power button 19 can be prevented from being erroneously operated. The surface of the head portion 18c of the operation portion 18 is inclined toward the back side as it is farther from the portion closer to the other operation portion 18. The front surface of the head 18c of the operation portion 18 is inclined from the upper portion toward the lower direction rear surface side. The head 19c of the power button 19 has a curved surface shape in which the central portion is located closer to the surface side than the outer peripheral portion.

As shown in fig. 29 and 31, case 27 has projection 27f projecting from the back surface, and projection 27f abuts back case 21. A screw is inserted from the back surface side of the back case 21, and the tip of the screw is screwed with the boss 27 f. Thereby mounting case 27 to back case 21.

The LCD casing 2 may have another structure for supporting the liquid crystal display panel 1 from the back side, for example, a mesh-like ring shape having only an outer peripheral portion, instead of the main body plate 2a shown in fig. 28 and 29. As described above, the LCD case 2 and the LCD cover 3 are attached to each other by the engaging portion 2c formed in the LCD case 2 and the claw 3e formed in the LCD cover 3. Instead of this, the LCD case 2 and the LCD cover 3 may be attached by a claw formed on the LCD case 2 and a hook formed on the LCD cover 3. Alternatively, the LCD case 2 and the LCD cover 3 may be attached by other attachment structures such as screws.

The liquid crystal display panel 1 displays the diagnosis result of the battery B diagnosed by the battery level detector 10. Instead of this, the battery for the electric power tool may be mounted on a device different from the battery level detector 10, and the liquid crystal display panel 1 may receive the state of the battery B mounted on the device, for example, the charged state from the controller and display the received state.

Claims (11)

1. A battery mounting device for mounting and dismounting a battery for an electric tool,

the battery mounter is characterized by having:

a housing which is an exterior of the battery mounting apparatus;

a hanging hole formed in the housing to communicate the inside and outside of the housing;

a hanging and clamping member inserted into the hanging and clamping hole and hung and clamped in the hanging and clamping hole;

a mounting portion provided on an inner surface of the housing; and

a lid member configured to be attached to the attachment portion, the lid member closing an opening of the engaging hole from an inner side of the housing when the lid member is attached to the attachment portion,

the cover member is configured to be attached to the attachment portion so as to move from above to below, from right to left, or from left to right along the inner surface of the housing with respect to the attachment portion, and has an opening portion at a distal end range in a moving direction,

the mounting portion has: a protruding edge portion provided along an inner peripheral edge of the hooking hole when the cover member is attached to the attachment portion, and an abutting surface that abuts against the opening portion of the cover member to cover the opening portion.

2. The battery mounter according to claim 1,

the mounting portion has a mounting support portion facing the engaging hole,

the attachment support portion supports the cover member from the inside toward the hanging engagement hole.

3. The battery mounter according to claim 2,

the cover member is provided with a structure that fits into the mounting support portion.

4. The battery mounter according to claim 2,

the mounting portion has a detachment restricting portion that restricts detachment of the cover member with respect to the mounting portion,

the mounting support portion allows the cover member to be mounted to the mounting portion over the detachment restricting portion by elastic deformation of the mounting support portion.

5. The battery mounter according to claim 1 or 2,

the cover member is provided with a wall portion overlapping with an edge portion of the mounting portion.

6. The battery mounter according to claim 1 or 2,

the hanging and clamping component is provided with a foot part which is embedded in the wall and supported, and a hanging and clamping head part with the outer diameter larger than the outer diameter of the foot part,

the card hanging hole has a first hole part into which the card hanging head part can be inserted, and a second hole part which has smaller inner diameter than the first hole part and limits the separation of the inserted card hanging head part, and the first hole part and the second hole part are formed by connecting according to the relation of the lower part and the upper part.

7. The battery mounter according to claim 1,

the cover member is configured to come into frictional contact with the attachment portion when the cover member is attached to the attachment portion, and to completely cover the card hanging hole from the inner surface of the housing, the hole covering portion of the cover member has a side portion facing an outer periphery of the housing, and the attachment portion is located inside the housing and on a back side of the side portion of the cover member.

8. The battery mounter according to claim 5,

when the cover member is mounted to the mounting portion, the wall portion of the cover member is brought into frictional contact with the overlapping edge portion of the mounting portion, and the cover member forms an outer periphery of the covering portion of the card hanging hole.

9. The battery mounter according to claim 1 or 2,

comprising:

a microcontroller; and

an LCD panel;

the housing has a rear shell fixed to a front shell having a boss by a screw, the boss being screwed to the screw, the front shell having a window opening.

10. The battery mounter according to claim 9,

the microcontroller is electrically connected to the LCD panel and provided in the rear case, and transmits a signal to the LCD panel of the rear case based on an algorithm in which an analysis result analyzed from data collected for the mounted battery for the electric power tool is stored.

11. The battery mounter according to claim 9,

the LCD panel is joined to and housed in an LCD housing mounted to the front case via a projection formed in the LCD housing, the LCD housing is brought into frictional contact with a lower inner surface of a window opening of the front case, there is an LCD cover located between the LCD housing and the window opening, the LCD cover has a claw mounted through a hole of the LCD housing to mount the LCD cover to the LCD housing, the LCD cover has a radial upper surface that disperses an external force applied to an outer periphery of a surface, and an effect of the external force applied to the LCD panel from the radial upper surface is further reduced by absorption by the LCD housing.

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