JP2017107829A - Battery attachment apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a battery attachment apparatus to which an electric tool battery is detachably attached, the battery attachment apparatus preventing a malfunction of products by preventing intrusion of foreign matters and static electricity from the exterior of a case into the interior thereof through a wall-hanging lock hole while the lock hole is provided.SOLUTION: A battery attachment apparatus includes a battery attachment section to which an electric tool battery is detachably attached, and a case 20 as an exterior portion thereof. The case 20 is provided with a lock hole 31 establishing communication between the exterior and interior of the case 20 to allow an external male screw to be locked. A cover member 70 is attached to a mounting portion 40 that is set on an inner surface 201 of the case 20. The cover member 70 works to close an opening of the lock hole 31 from the inner side of the case 20. The cover member 70 prevents intrusion of foreign matters and static electricity from the exterior of the case 20 into the interior of the case 20 through the lock hole 31.SELECTED DRAWING: Figure 5

Description

  The present invention relates to a battery mounter to which a power tool battery is attached and detached.

  Recently, a power tool battery is used as a driving power source of the power tool. Such a battery for electric tools is removed from the tool body and charged by being attached to a dedicated charger when the remaining charge level is low (see, for example, Patent Document 1). On the other hand, there is also known as a battery checker and a dedicated diagnostic device for checking an abnormality of a power tool battery. Such a diagnostic device diagnoses the number of times the battery is charged, the battery voltage, and the internal resistance of the installed power tool battery, as well as the battery capacity, and comprehensively diagnoses the power tool battery. A battery state such as a result is detected and displayed to the user.

  Both the charger and the diagnostic device described above are configured as devices to which a power tool battery is attached and detached. Hereinafter, devices other than the tool to / from which such a power tool battery is attached / detached are collectively referred to as a battery mounter. In some cases, such a battery mounter is desired to be hung on a wall for convenience of use. In such a wall-mounted battery mounting device, a wall-hanging screw attached to a wall can be inserted into a hook hole provided in the case so as to be hung (see, for example, Patent Document 2). ). The retaining hole is provided so that the outside of the case communicates with the inside of the case. When the case is molded using plastic (synthetic resin) as a material, the retaining hole is molded together with the exterior shape of the other case.

JP 2004-147360 A Japanese Utility Model Publication No. 4-004446

  By the way, the above-mentioned latching hole is provided in communication with the outside of the case and the inside of the case. For this reason, foreign matter enters the inside of the case from the outside of the case through this retaining hole, or static electricity enters the inside of the case from the outside of the case through this retaining hole, adversely affecting the electronic components in the interior. May be given. Note that such a problem is becoming a more prominent problem nowadays as a battery mounting device has been reduced in size.

  The present invention has been made in view of the above circumstances, and the problem to be solved by the present invention is to provide a battery mounting device to which a battery for a power tool is attached and detached while providing a retaining hole for hanging on a wall. The purpose of this is to prevent foreign products and static electricity from entering the inside of the case from the outside of the case through the retaining holes, thereby preventing malfunction of the product.

  In solving the above-described problems, the battery mounter according to the present invention takes the following means. That is, the battery mounting device according to the first aspect of the present invention is a battery mounting device to which a battery for an electric tool is attached and detached, and has a case as an exterior, and the case communicates with the inside and outside of the case. A mounting hole is provided on the inner surface of the case, wherein a latching hole is provided to allow the latching of the external latching member, and the lid member that closes the opening of the latching hole from the inner side of the case It is the structure of being attached to.

  According to the battery mounting device according to the first aspect of the present invention, the battery mounting device can be hung on the wall by inserting, for example, a wall-hanging screw attached to the wall as an external locking member into the locking hole. Thereby, it can be set as a wall-mounted battery mounting device. Here, the lid member attached to the attachment portion can close the opening of the latching hole from the inside of the case. As a result, the lid member prevents foreign matter and static electricity from entering the case through the retaining hole from the outside of the case, and prevents malfunction of the product due to the entry of this foreign matter and static electricity. it can.

  The battery mounting device according to a second aspect of the present invention is the battery mounting device according to the first aspect, wherein the mounting portion has a mounting support portion extending to a position facing the retaining hole, and the mounting The support portion is configured to support the attached lid member from the inside toward the retaining hole. According to the battery mounting device according to the second aspect of the present invention, the attachment support portion is provided at a position facing the latching hole and supports the lid member from the inside toward the latching hole. As a result, even if a foreign object pushes the lid member through the retaining hole, the lid member is supported by the mounting support portion and is difficult to come off. Therefore, the lid member is firmly supported even when foreign matter enters from the outside, and the malfunction of the product can be strongly prevented.

  The battery mounting device according to a third aspect of the present invention is the battery mounting device according to the second aspect, wherein the mounting direction of the lid member with respect to the mounting portion is an inner surface extending direction along the inner surface of the case. The configuration is set. In the battery mounting device according to the third aspect of the invention, the attachment direction of the lid member with respect to the attachment portion is set to the inner surface extending direction along the inner surface of the case, so the presence of the attachment support portion does not interfere. The lid member can be attached to the attachment portion. Accordingly, the lid member can be easily and reliably attached to the attachment portion.

  According to a fourth aspect of the present invention, there is provided a battery attachment device according to the third aspect, wherein the lid member is provided with a structure for fitting the attachment support portion. . According to the battery mounting device of the fourth aspect of the present invention, since the lid member is provided with the structure for fitting the attachment support portion, the support of the lid member by the attachment support portion can be enhanced. Thereby, the attachment of the lid member to the attachment portion can be made more reliable.

  The battery mounting device according to a fifth aspect of the present invention is the battery mounting device according to the third or fourth aspect of the present invention, wherein the mounting portion is a removal restricting portion that restricts the removal of the lid member with respect to the mounting portion. The attachment support part is configured to allow attachment of the lid member to the attachment part beyond the removal restricting part by elastic deformation. According to the battery mounting device of the fifth aspect of the invention, the removal of the lid member with respect to the attachment portion can be restricted by the removal restriction portion. Thereby, the attachment state of the lid member to the attachment portion can be firmly held. In addition, since the removal restricting portion provided in this way can attach the lid member without being interfered by the attachment support portion due to the elastic deformation of the attachment support portion, the lid member can also be easily attached. .

  A battery mounting device according to a sixth aspect of the present invention is the battery mounting device according to any one of the first to fifth aspects, wherein the mounting direction of the lid member relative to the mounting portion is from top to bottom. It is the structure that it is the direction. According to the battery mounting device of the sixth aspect of the invention, the direction of attachment of the lid member to the attachment portion is the direction from top to bottom, so that the gravity action on the lid member coincides with the direction of attachment of the lid member. Will be. Thereby, the detachment of the lid member can be suppressed.

  The battery mounting device according to a seventh aspect of the present invention is the battery mounting device according to any one of the first to sixth aspects, wherein the lid member has an edge portion and a plate thickness provided in the mounting portion. It is the structure that the wall part which overlaps in a direction is provided. According to the battery mounting device of the seventh aspect of the invention, since the lid member is provided with the wall portion that overlaps the edge portion provided in the attachment portion in the thickness direction, the edge portion of the opening of the latching hole is overloaded. It can be wrapped and closed. Thereby, the closing creepage distance from the retaining hole to the inside of the case is extended to improve the sealing performance. Therefore, it is possible to further suppress the intrusion of foreign matter and static electricity from the retaining hole into the case.

  The battery mounting device according to an eighth aspect of the present invention is the battery mounting device according to any one of the first to seventh inventions, wherein the hooking member is embedded in a wall and supported by a leg, A latching head having an outer diameter that is larger than the outer diameter of the leg, and the latching hole is inserted into the first hole in which the latching head can be inserted. The second hole portion having an inner diameter shorter than that of the first hole portion is formed so as to be connected in a relationship between the lower side and the upper side so that the latch head is prevented from coming off. According to the battery mounting device according to the eighth aspect of the present invention, for example, a wall mounting male screw or a wall mounting nail attached to the wall is inserted into the locking hole as an external locking member, and the battery mounting device is mounted on the wall. Can be hung on. Thus, a wall-mounted battery mounting device can be obtained by using a general male screw as a locking member.

It is a perspective view from the front side of a battery checker. It is a perspective view which tries to mount | wear the battery checker with the battery for electric tools. It is a perspective view from the back side of a battery checker. It is a perspective view which shows the latching structure seen from the case inside side. It is a perspective view which shows the latching structure which is going to attach a cover member to an attaching part. It is a perspective view which shows the attaching part to which the cover member is not attached. It is a perspective view which shows the attaching part of FIG. 6 seen from another angle. It is a front view which shows the attaching part to which the cover member is not attached. It is a left view which shows the attaching part to which the cover member is not attached. It is a top view which shows the attaching part to which the cover member is not attached. It is a front view which shows the latching hole seen from the outside. It is a perspective view which shows the single-piece external shape of a cover member. It is a perspective view which shows the single-piece external shape of the cover member seen from another angle. It is a perspective view which shows the single-piece internal shape of a cover member. It is a front view which shows the exterior of a cover member. It is a left view which shows a cover member. It is a front view which shows the latching structure where the cover member was attached to the attaching part. It is a left view which shows the latching structure of FIG. It is a top view which shows the latching structure of FIG. It is the (XX)-(XX) sectional view taken on the line of FIG. It is the (XXI)-(XXI) sectional view taken on the line of FIG. It is the (XXII)-(XXII) sectional view taken on the line of FIG. It is the (XXIII)-(XXIII) sectional view taken on the line of FIG. It is an external perspective view which shows the latching hole in which the male screw was inserted. It is the (XXV)-(XXV) sectional view taken on the line of FIG. It is an external perspective view which shows the latching hole by which the male screw was latched. FIG. 27 is a sectional view taken along line (XXVII)-(XXVII) in FIG. 26. It is a disassembled perspective view from the front side of a front case and a display output part. It is a disassembled perspective view from the back side of a front case and a display output part. It is a back view of a front case and a display output part. It is the (XXXI)-(XXXI) sectional view taken on the line of FIG. It is the (XXXII)-(XXXII) sectional view taken on the line of FIG. FIG. 6 is a surface view of a back case and components mounted on the back case. It is a top view of a battery checker. It is a top view of a battery checker. It is a block diagram of a battery checker.

  Hereinafter, an embodiment for carrying out a battery mounter according to the present invention will be described with reference to FIGS. 1-3, the battery checker 10 as a battery mounting device which concerns on this invention is shown in figure. FIG. 1 shows the front side of the battery checker 10. FIG. 2 is a perspective view of the electric tool battery B to be mounted, and FIG. 3 shows the back side of the battery checker 10. The battery checker 10 is an electric device to which the electric tool battery B is attached and detached. The battery checker 10 is normally driven by power supply from the power tool battery B mounted on the battery mounting unit 11, and when there is no power supply from the power tool battery B (see FIG. 3). ) Can be driven by a dry battery contained in the battery. The battery checker 10 is configured by, for example, a wall-hanging type that is hung on a male screw fixed to an indoor wall. For this reason, in the following description, the battery checker 10 will be described based on the “front, back, top, bottom, left, and right” directions defined by the battery checker 10 hung on the wall.

  Incidentally, the “up / down” direction defined in the figure is defined based on the up / down direction of the battery checker 10 hung on the wall. In addition, the direction of “front” in the figure definition means the surface side of the battery checker 10 hung on the wall, and the direction of “back” in the figure definition indicates the side of the back surface of the battery checker 10 hung on the wall. Means. The front surface is the surface facing the user, and the back surface is the surface facing the wall surface. In addition, the “left / right” direction specified in the figure is defined based on the left / right direction when the user views from the surface.

  The battery checker 10 hung on the wall in this way is configured as a dedicated diagnostic device for checking the abnormality of the power tool battery B. Such a diagnostic device, as a result of diagnosing the battery charging frequency, battery voltage, and battery internal resistance of the mounted electric tool battery B, as a result of diagnosing the battery capacity, A battery state such as a diagnosis result is detected and output to the user. For this reason, the battery checker 10 is provided with a battery mounting unit 11 for mounting the electric tool battery B and a display output unit 17 for displaying and outputting a diagnosis result.

  The front side surface 101 of the battery checker 10 faces the user. A battery mounting portion 11 for mounting the power tool battery B is provided in the left side range of the front side surface 101. The battery mounting part 11 is comprised corresponding to the battery B for electric tools attached or detached by making it slide. The power tool battery B is configured as a rechargeable battery that is mounted or removed by sliding the power tool with respect to the tool body. The electric tool battery B is used as a power source for the electric tool when mounted on the tool body. Examples of the power tool to which the battery B for the power tool is mounted include power-driven power tools such as a driver, a wrench, a drill, a reciprocating saw, a chain saw, a band saw, a jigsaw, a marnoco, a grinder, and a tacker. Incidentally, as the power tool battery B, for example, a product of “BL1430” in the Makita general catalog issued in April 2012 can be cited.

  The battery mounting part 11 generally includes a slide rail 12, a hook part 13, a connection terminal part 14, and a terminal cover 15. The power tool battery B is mounted on the battery mounting portion 11 by sliding from the top to the bottom, and conversely, is removed by sliding from the bottom to the top. The slide rail 12 is a guide rail that guides a slide when the electric tool battery B is attached or detached. The slide rails 12 are formed in a shape corresponding to a guide portion (not shown) of the electric tool battery B, and extend in pairs in the vertical direction in which the electric tool battery B is slid. The hook part 13 is formed by a concave hook. The hook portion 13 is fitted with a convex hook (not shown) of the battery B for the electric tool that has been attached. In addition, when removing the battery B for electric tools, the lock lever (illustration omitted) by the side of the electric tool battery B is operated, and the fitting of the convex hook of the battery B for electric tools with respect to the hook part 13 is cancelled | released. .

  A connection terminal portion 14 is provided at the center of the battery mounting portion 11. A terminal (not shown) on the power tool battery B side 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 hitting the slide when the battery B for electric tool is attached or detached. Specifically, the terminal cover 15 is pushed down by the electric tool battery B when the electric tool battery B is mounted on the battery mounting portion 11. If it does so, the connection terminal part 14 which was hidden until then will be exposed, and the connection terminal (illustration omitted) provided in the battery B for electric tools will be connected to the connection terminal part 14. FIG. The power tool battery B is slid from the top to the bottom in the direction of gravity, so that the power tool battery B can be easily mounted on the battery mounting portion 11 and after being mounted on the battery mounting portion 11. The power tool battery B is difficult to be detached from the battery mounting portion 11.

  On the other hand, a display output unit 17 and an operation unit 18 are provided in the right range of the front side surface 101. The display output unit 17 outputs the above-described diagnosis result so that the user can visually recognize it. The operation unit 18 is a button for operating display contents regarding display output. The user can appropriately change the display content displayed on the display output unit 17 by pressing the operation unit 18 as appropriate. In addition, a power button 19 is provided in the right range of the front side surface 101. Thus, the battery checker 10 to which the power tool battery B is mounted and the result of diagnosis of the power tool battery B is displayed and output is configured to have a case as an exterior. An appropriate electronic component is built in the case 20.

  The case 20 is formed to have a rectangular shape when viewed from above, and has a function as an exterior and a function as a housing case. The case 20 includes a back case (lower case) 21 and a front case (upper case) 27. Combined. The back case 21 and the front case 27 are integrally screwed via a male screw 28 as shown in FIG. Specifically, the back case 21 and the front case 27 are screwed by male screws 28 at four corners of a rectangle when viewed from above. The extending plane of the back case 21 forms the back side surface 102 of the battery checker 10. This back side surface 102 is a surface that faces the wall when the battery checker 10 is hung on the wall.

  A pair of retaining holes 31 are provided on the back side surface 102 of the back case 21. The pair of retaining holes 31 are holes for wall mounting. The pair of latching holes 31 includes a left latching hole 311 set in the vicinity of the left (right side in the drawing) edge and a right latching hole 312 set in the vicinity of the right (left side in the drawing) edge. Two are set. Incidentally, the left retaining hole 311 and the right retaining hole 312 are provided at symmetrical positions of the case 20 so that the left / right balance is improved when the battery checker 10 is hung on the wall. Furthermore, the left side hooking hole 311 and the right side hooking hole 312 are provided in a range above the half of the case 20 so that the vertical balance when hung on the wall is improved.

  The left side hooking hole 311 and the right side hooking hole 312 are constituted by the same hooking hole 31. For this reason, in the following description of the latching hole 31, the right latching hole 312 will be described as an example. In addition, the back side surface 102 of the case 20 is provided with a dry battery housing portion 23 in which a dry battery is housed. The dry battery housing part 23 is closed by a housing cover 24. The housing cover 24 is locked to the back case 21 by a locking hook 251 and is screwed by a retaining screw 252.

  The latching hole 31 forms a part of the latching structure 30. FIG. 4 is a perspective view showing the latching structure 30 as viewed from the inside of the case 20. FIG. 5 is a perspective view showing the latching structure 30 for attaching the lid member 70 to the attachment portion 40. FIG. 6 is a perspective view showing the attachment portion 40 to which the lid member 70 is not attached. FIG. 7 is a perspective view showing the mounting portion 40 of FIG. 6 viewed from another angle. FIG. 8 is a front view showing the attachment portion 40 to which the lid member 70 is not attached. FIG. 9 is a left side view showing the attachment portion 40 to which the lid member 70 is not attached. FIG. 10 is a top view showing the attachment portion 40 to which the lid member 70 is not attached. FIG. 11 is a front view showing the retaining hole 31 viewed from the outside. FIG. 12 is a perspective view showing a single external shape of the lid member 70. FIG. 13 is a perspective view showing a single external shape of the lid member 70 viewed from another angle. FIG. 14 is a perspective view showing the internal shape of the single member of the lid member 70. FIG. 15 is a front view showing the outside of the lid member 70. FIG. 16 is a left side view showing the lid member 70.

  17 to 27, the latching structure 30 in which the lid member 70 is attached to the attachment portion 40 described above is illustrated. That is, FIG. 17 is a front view showing the latching structure 30 in which the lid member 70 is attached to the attachment portion 40. 18 is a left side view showing the latching structure 30 of FIG. FIG. 19 is a top view showing the latching structure 30 of FIG. 20 is a cross-sectional view taken along line (XX)-(XX) in FIG. 21 is a cross-sectional view taken along line (XXI)-(XXI) in FIG. 22 is a cross-sectional view taken along line (XXII)-(XXII) in FIG. 23 is a cross-sectional view taken along line (XXIII)-(XXIII) in FIG. FIG. 24 is an external perspective view showing the retaining hole 31 into which the male screw S is inserted. 25 is a cross-sectional view taken along the line (XXV)-(XXV) in FIG. FIG. 26 is an external perspective view showing the latching hole 31 with the male screw S latched thereon. 27 is a cross-sectional view taken along line (XXVII)-(XXVII) in FIG.

  The latching structure 30 includes a latching hole 31 provided in the back case 21, an attachment part 40 provided in the back case 21, and a lid member 70 attached to the attachment part 40. The retaining hole 31 is formed so as to penetrate the back side surface 102 of the back case 21 from the back to the front. That is, the retaining hole 31 communicates the inside and outside of the case 20 so that an external male screw S (see FIGS. 25 and 27) can be inserted into the case 20. The screw head S <b> 2 of the male screw S inserted into the case 20 from the retaining hole 31 can be latched to the retaining hole 31. The male screw S referred to in FIGS. 24 to 27 corresponds to an external latch member according to the present invention. The male screw S has a screw portion S1 and a screw head S2 in the same manner as a widely used male screw. The screw portion S1 corresponds to a leg portion according to the present invention which is embedded and supported in a wall. Moreover, screw head S2 is corresponded to the latching head which concerns on this invention which makes the outer diameter expanded from the outer diameter of screw part S1. The latching of the male screw S will be described later with reference to FIGS. As shown in FIG. 11, the retaining hole 31 is a communication hole that is also generally referred to as a dharma hole. The retaining hole 31 is formed so as to connect two large and small holes 33 and 35 having different diameters.

  As shown in FIG. 11, the retaining hole 31 is formed such that the lower large-diameter hole 33 and the upper small-diameter hole 35 are connected with the connecting hole 37 interposed therebetween. The large-diameter hole 33 is formed as a hole of the inner peripheral edge 34 having a relatively long diameter compared to the diameter of the small-diameter hole 35. In other words, the small-diameter hole 35 is formed as a hole of the inner peripheral edge 36 having a relatively short diameter as compared with the length of the large-diameter hole 33. Further, the connecting hole 37 is formed as a hole of an inner peripheral edge 38 that extends straight downward while maintaining the diameter of the small diameter hole 35. The large-diameter hole 33 is a hole corresponding to the first hole portion according to the present invention, and the diameter of the inner peripheral edge 34 is set so that the screw head S2 of the male screw S can be inserted. On the other hand, the small-diameter hole 35 is a hole corresponding to the second hole portion according to the present invention, and the diameter of the inner peripheral edge 36 is set to a diameter that restricts the removal of the screw head S2 of the male screw S. . The diameter of the inner peripheral edge 38 of the connecting hole 37 is the same as that 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-and-down relationship, and a connecting hole 37 is interposed therebetween to form a latching hole 31.

  A mounting portion 40 is provided on the inner surface 201 of the case 20 that is the inner surface side of the retaining hole 31. A lid member 70 is attached to the attachment portion 40. The lid member 70 attached to the attachment portion 40 closes the opening of the retaining hole 31 from the inside of the case 20. The lid member 70 is configured as a member that closes the retaining hole 31 into which the male screw S is inserted from the inside of the case 20. Note that the attachment direction of the lid member 70 with respect to the attachment portion 40 is set in the direction from the top to the bottom from the small diameter hole 35 toward the large diameter hole 33. That is, the attachment direction of the lid member 70 is from the top to the bottom where the inner surface 201 of the case 20 extends. The lid member 70 is attached to the attachment portion 40 by sliding the lid member 70 in this attachment direction. The attachment portion 40 has a structure provided on the inner surface 201 side of the retaining hole 31. The mounting portion 40 is provided with the same structure on both the left side (indicated by reference numeral 311) and the right side (indicated by reference numeral 312), like the retaining hole 31.

  The attachment part 40 will be described with reference to FIGS. In addition, illustration of the periphery of the attachment part 40 is abbreviate | omitted in drawings other than FIG. 6 and FIG. The attachment portion 40 generally includes a protruding edge portion 41, a closing portion 50, a support guide portion 55, and a stopper portion 60. The protruding edge portion 41 corresponds to the first protruding edge according to the present invention. The protruding edge 41 is provided along the inner peripheral edge 34, 36, 38 of the retaining hole 31. The protruding edge portion 41 is formed so as to protrude from the inner peripheral edges 34, 36, and 38 of the retaining hole 31 toward the inside of the case 20. Specifically, a first projecting edge portion 44 is provided along the inner peripheral edge 34 of the large diameter hole 33, and a second projecting edge portion 46 is provided along the inner peripheral edge 36 of the small diameter hole 35. A third protruding edge 48 is provided along the inner peripheral edge 38. These first to third projecting edge portions 44, 46, and 48 are connected to each other and protrude toward the inside of the case 20 in the same manner as the inner peripheral edges 34, 36, and 38 that form the retaining holes 31. The lower half of the first protruding edge 44 is formed so as to be continuous with the closing portion 50 described in detail below. In other words, the second and third protruding edges 46 and 48 and the upper half of the first protruding edge 44 protrude toward the inside of the case 20 by a length equivalent to the plate thickness of the back case 21. Is formed.

  The blocking portion 50 includes a peripheral wall portion 51 formed so as to protrude the protruding half portion 41 of the lower half of the large diameter hole 33 further toward the inside of the case 20, and the large diameter hole 33 while being connected to the peripheral wall portion 51. A large-diameter hole 33 and a circular portion 52 arranged to face each other are provided so as to cover. In other words, the peripheral wall portion 51 connects the lower half of the circular portion 52 facing the large diameter hole 33 and the lower half of the inner peripheral edge 34 of the large diameter hole 33. Further, a support guide portion 55 extends upward from the upper end of the circular portion 52. The support guide portion 55 corresponds to an attachment support portion according to the present invention. The support guide portion 55 extends from the bottom up to a position facing the retaining hole 31. The support guide portion 55 supports the attached lid member 70 from the inside of the case 20 toward the retaining hole 31. Specifically, the support guide portion 55 extends upward from the upper end of the circular portion 52, and is disposed facing the small diameter hole 35 and the connection hole 37. 8 and 11, the circular portion 52 is formed slightly smaller than the opening shape of the large-diameter hole 33, and the support guide portion 55 is also slightly smaller than the opening shapes of the small-diameter hole 35 and the connecting hole 37. It is formed small.

  Support ribs 56 are provided on the inner surface 201 of the case 20 of the circular portion 52 and the support guide portion 55. The support rib 56 includes 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 to extend in the horizontal direction with respect to the lower range of the closing portion 50. The upper and lower ribs 58 are provided so as 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 portion 55 adds appropriate strength to the closing portion 50 and the support guide portion 55. The support ribs 56 (the horizontal ribs 57 and the upper and lower ribs 58) are set to a length equivalent to the plate thickness of the back case 21, as shown in FIG. Further, as shown in FIGS. 6 and 7, the horizontal rib 57 is continuous with the side rib 29 that is continuous from the left and right side walls 211, 212 of the back case 21. The surface facing the upper side of the horizontal rib 57 functions as a lower contact surface 59 with which the opening end 78 of the cover member 70 contacts when the cover member 70 is attached to the attachment portion 40.

  A stopper portion 60 is provided above the retaining hole 31. The stopper 60 is formed so as to protrude from the inner surface 201 of the case 20 toward the inside of the case 20. Specifically, the stopper portion 60 has a rectangular shape when viewed from the front as shown in FIG. 8, and is formed so as to gradually protrude into the case 20 from the top to the bottom as shown in FIG. Is done. The stopper portion 60 corresponds to a removal restricting portion according to the present invention, and restricts the removal of the lid member 70 from the attachment portion 40. Specifically, the surface of the stopper portion 60 that faces the inner side of the case 20 is set as a tapered surface 61 that projects downward toward the inner side of the case 20. The tapered surface 61 is formed as a guide surface when the lid member 70 is attached to the attachment portion 40. In this way, when the lid member 70 is attached to the attachment portion 40, the upper end 735 of the lid member 70 is moved over the tapered surface 61. At this time, the support guide portion 55 is slightly elastically deformed toward the inner side (inner side) of the case 20. Thus, the support guide portion 55 that supports the lid member from the inside allows the attachment of the lid member 70 to the attachment portion 40 beyond the stopper portion 60. The lid member 70 that has passed over the tapered surface 61 is disposed on the lower side of the stopper portion 60 and attached to the attachment portion 40.

  A surface of the stopper portion 60 that faces the lower side of the case 20 is set as an upper contact surface 62 that faces the lower contact surface 59 described above. The upper abutment surface 62 is formed by a stepped portion of the protruding stopper portion 60. The upper contact surface 62 restricts the movement of the lid member 70 in the removal direction when the lid member 70 is attached to the attachment portion 40. The upper contact surface 62 supports the attachment state of the lid member 70 to the attachment portion 40 so as to sandwich the lid member 70 together with the lower contact surface 59 described above. For this reason, the lower contact surface 59 and the upper contact surface 62 are formed as contact surfaces extending in a direction orthogonal to the inner surface 201 of the case 20. When the lid member 70 attached to the attachment portion 40 tries to move from the bottom to the top, the contact surface 736 of the lid member 70 hits the upper contact surface 62 of the stopper portion 60 and the sliding of the lid member 70 is restricted. The detachment of the lid member 70 with respect to the attachment portion 40 is restricted.

  The lid member 70 will be described with reference to FIGS. The lid member 70 is a resin molded product. The lid portion 71 has an outer peripheral shape (substantially dharma shape in front view) that substantially matches the opening shape of the retaining hole 31, and has a lid shape that closes the opening shape of the retaining hole 31. The lid member 70 generally includes a lid portion 71 and an insertion guide portion 81. Specifically, the lid portion 71 is formed by vertically connecting a first lid portion 73 and a second lid portion 74. The first lid 73 is provided so as to cover the opening shapes of the small diameter hole 35 and the connecting hole 37. The first lid portion 73 includes a first facing portion 731 that is disposed so as to cover the small-diameter hole 35 and the connecting hole 37, and a first peripheral wall portion 732 that forms a peripheral wall along the outer periphery of the first facing portion 731. Have. The first facing portion 731 is formed in a shape that covers the small diameter hole 35 and the connecting hole 37, and faces the small diameter hole 35 and the connecting hole 37. The first peripheral wall portion 732 is formed to extend from the peripheral edge of the first facing portion 731 into a side wall shape. The upper end 735 of the first peripheral wall portion 732 is formed in a surface shape as an abutment surface 736 with which the upper abutment surface 62 of the stopper portion 60 abuts.

  On the other hand, the second lid 74 covers the opening shape of the upper half of the large-diameter hole 33. This 2nd cover part 74 is the 2nd facing part 741 arrange | positioned facing so that the upper half of the large diameter hole 33 may be covered, and the 2nd which makes a surrounding wall along the outer periphery of the 2nd facing part 741 (refer FIG. 14). A peripheral wall portion 742. The second facing portion 741 is formed in a shape that covers the upper half of the large-diameter hole 33, and faces the upper half of the large-diameter hole 33. The second peripheral wall portion 742 is formed to extend from the peripheral edge of the second facing portion 741 into a side wall shape. The lid member 70 is provided with openings 75 and 77 for attachment to the attachment portion 40. That is, the lid member 70 is provided with a facing opening 75 provided in a facing range with the retaining hole 31 and a lower opening 77 provided in a lower range. The facing opening 75 is set at an edge facing the back side of the first peripheral wall 732 and the second peripheral wall 742. The lower opening 77 is set at an edge facing the lower side of the second peripheral wall 742. The lower opening 77 is formed to have an opening shape that can accommodate the protruding edge portion 41 and the closing portion 50 of the attachment portion 40. The lower end of the lower opening 77 is set as an opening end 78 of the lid member 70 that comes into contact with the lower contact surface 59 of the mounting portion 40 described above.

  An insertion guide portion 81 is provided on the outer peripheral surface 79 of the lid portion 71 so as to be continuous with the lid portion 71. The insertion guide portion 81 is provided so as to face the range of the lower half of the lid portion 71. In other words, the insertion guide portion 81 and the lid portion 71 are formed so as to be connected in parallel in two stages of the inside and outside. The insertion guide portion 81 is formed with an insertion hole 82 into which the support guide portion 55 of the attachment portion 40 is inserted. That is, the insertion part 83 is provided as a structure in which the support guide part 55 is fitted from the bottom to the top. The insertion guide portion 81 includes an insertion portion 83 in which the insertion hole 82 is set, and an extending portion 87 that covers the lower portion of the attachment portion 40. The insertion portion 83 has a facing wall 84 that is disposed to face the outer peripheral surface 79 of the lid portion 71.

  On the left and right sides of the facing wall 84, a left side wall 851 and a right side wall 852 that connect the facing wall 84 and the outer peripheral surface 79 are provided. Here, an insertion hole 82 extending vertically is provided between the facing wall 84 and the outer peripheral surface 79 facing each other. An extending portion 87 is provided below the facing wall 84 so as to cover the lower portion of the mounting portion 40. The extending portion 87 extends downward until the circular portion 52 of the mounting portion 40 is covered. A pair of stepped portions 88 are provided on the outer peripheral portions on both the left and right sides of the insertion portion 83. The stepped portion 88 fills the gap between the protruding edge portion 41 and extends the creeping distance from the outside of the case 20 to the substrate mounted inside the case 20 to enhance the sealing inside and outside the case 20. As a result, the electrical insulation performance of the substrate installed inside the case 20 is enhanced with respect to the outside of the case 20. When the electrical insulation performance is improved in this way, for example, it is difficult for static electricity to jump from the outside of the case 20 to the substrate mounted inside the case 20, and malfunction of the device and circuit failure can be suppressed.

  The lid member 70 attached to the attachment portion 40 is provided with a structure that overlaps with the attachment portion 40. That is, the first peripheral wall portion 732 and the second peripheral wall portion 742 of the lid member 70 overlap with the first to third protruding edge portions 44, 46, and 48 (the protruding edge portion 41) provided in the attachment portion 40 in the plate thickness direction. . The first to third projecting edges 44, 46, and 48 are provided along the inner peripheral edges 34, 36, and 38 of the retaining hole 31 as described above. Further, the opening end 78 of the lid member 70 overlaps with the horizontal rib 57 provided in the attachment portion 40 in the plate thickness direction. That is, the lid member 70 attached to the attachment portion 40 is formed so as to overlap the periphery of the retaining hole 31 in the plate thickness direction. Thus, the overlapping structure of the lid member 70 attached to the attachment portion 40 is set so as to extend over the entire circumference of the retaining hole 31, and the overlapping length coincides with the length of the substantially plate thickness of the case 20. Is set to

  As shown in FIGS. 24 to 27, the male screw S is hooked on the hooking hole 31 described above. Specifically, first, the male screw S is inserted into the large-diameter hole 33 of the retaining hole 31 as shown in FIGS. The male screw S shown in the drawing is a general wall-hanging male screw that is fixed by screwing the screw portion S1 into a wall. The large-diameter hole 33 has an inner peripheral edge 34 into which the screw head S2 of the male screw S can be inserted. Here, when the battery checker 10 is slid downward with respect to the male screw S, it becomes as shown in FIGS. That is, the male screw S moves from the large diameter hole 33 through the connecting hole 37 to the small diameter hole 35. Here, in the small-diameter hole 35, the diameter of the inner peripheral edge 36 is set to a diameter that prevents the screw head S2 of the male screw S from coming off. For this reason, the screw head S <b> 2 of the male screw S is engaged with the engagement hole 31.

  According to the battery checker 10 of the above-described embodiment, the following operational effects can be achieved. That is, according to the battery checker 10 described above, the battery checker 10 can be hung on the wall by inserting the screw portion S1 of the male screw S for wall hanging into the retaining hole 31. Thus, the wall-mounted battery checker 10 can be obtained. Here, the lid member 70 attached to the attachment portion 40 can close the opening of the latching hole 31 from the inside of the case 20. As a result, the lid member 70 prevents foreign matter and static electricity from entering the case 20 from the outside of the case 20 through the retaining holes 31, and malfunctions of the product due to the foreign matter and static electricity intruding. Can be prevented.

  Further, according to the battery checker 10 described above, the support guide portion 55 is provided at a position facing the latching hole 31 and supports the lid member 70 from the inside toward the latching hole 31. As a result, even if a foreign object pushes the lid member 70 through the retaining hole 31, the lid member 70 is supported by the support guide portion 55 and is difficult to come off. Therefore, the lid member 70 is firmly supported even when foreign matter enters from the outside, and the malfunction of the product can be strongly prevented. Further, according to the battery checker 10 described above, the attachment direction of the lid member 70 with respect to the attachment portion 40 is set in the extending direction of the inner surface 201 along the inner surface 201 of the case 20, so that the support guide portion 55 exists. The lid member 70 can be attached to the attachment portion 40 without obstruction. Thereby, the lid member 70 can be easily and reliably attached to the attachment portion 40.

  Further, according to the battery checker 10 described above, since the cover member 70 is provided with a structure in which the support guide portion 55 is fitted, the support of the cover member 70 by the support guide portion 55 can be enhanced. Thereby, the attachment of the lid member 70 to the attachment portion 40 can be made more reliable. Further, according to the battery checker 10 described above, the stopper member 60 can restrict the removal of the lid member 70 from the attachment portion 40. Thereby, the attachment state of the lid member 70 with respect to the attachment part 40 can be firmly held. In addition, since the stopper part 60 provided in this way can attach the cover member 70 without interfering with the support guide part 55 by the elastic deformation of the support guide part 55, the attachment of the cover member 70 is also easy. It can be carried out.

  Further, according to the battery checker 10 described above, the mounting direction of the lid member 70 with respect to the mounting portion 40 is a direction from the top to the bottom, so that the gravity action on the lid member 70 is the same as the mounting direction of the lid member 70. Will match. Thereby, the detachment of the lid member 70 can be suppressed. Further, the first peripheral wall portion 732 and the second peripheral wall portion 742 of the lid member 70 overlap with the first to third protruding edge portions 44, 46, and 48 (the protruding edge portion 41) provided in the attachment portion 40 in the plate thickness direction. Therefore, the edge part of the opening of the retaining hole 31 can be overlapped and closed. Thereby, the closing creepage distance from the retaining hole 31 to the inside of the case 20 is extended to improve the sealing performance. Therefore, foreign matter and static electricity can be further prevented from entering the case 20 from the retaining hole 31. According to the battery checker 10 described above, the battery checker 10 can be hung on the wall by inserting the male screw S for hanging on the wall into the retaining hole 31. Thus, a wall-hanging battery checker 10 can be obtained by using a general male screw as a locking member.

  In addition, in the battery mounting device which concerns on this invention, it is not limited to above-described embodiment, It is possible to add and change suitably. For example, in the above-described embodiment, the battery checker 10 is given as an example of the battery mounter, and this will be described. However, the battery mounting device according to the present invention may be configured, for example, as a charger that charges a power tool battery. Can be adopted. In addition, as the lid member according to the present invention, an appropriate configuration may be adopted as long as the lid member is configured to be attached to an attachment portion set on the inner surface of the case so as to close the opening of the latching hole from the inner side of the case. it can. Specifically, the configuration of closing the opening of the latching hole 31 of the lid member 70 from the inside of the case 20 is not limited to the configuration of the lid portion 71 described above, and an appropriate shape can be selected. Further, with respect to the mounting direction of the lid member 70, the lid member 70 is configured to be attached to the latch hole 31 in the left-right direction, or the lid member 70 is configured to be opposed to the latch hole 31. It may be a thing to do. Moreover, even if it exists in the attachment part which concerns on this invention, you may comprise without the stopper part 60, for example, and you may make it provide a function suitably in the left-right direction as such a removal control part.

  The battery mounter is of a transport type and may be accidentally dropped by the user. When dropped, for example, the display output unit (liquid crystal display panel) of the battery mounter may be damaged. For this reason, there has been a need for a battery mounter that is unlikely to damage the liquid crystal display panel. Therefore, the battery mounter may have the following configuration A instead of or in addition to the above configuration.

  As described above, the power tool battery is attached to and detached from the battery mounting device. The battery mounter has, for example, a liquid crystal display panel for displaying the state of the battery for the power tool, an LCD case for holding the back surface of the liquid crystal display panel, and a liquid crystal display panel that covers the surface and is transparent. The LCD cover is formed of a material having the same structure and attached to the LCD case, and the case has an opening window for opening the LCD cover. The LCD case is attached to the case without the LCD cover being attached to the case.

  Therefore, the liquid crystal display panel is configured not to receive external force. For example, when the case is distorted by force, the distortion is transmitted from the case to the liquid crystal display panel through the LCD case. Therefore, the force applied to the liquid crystal display panel is transmitted to the liquid crystal display panel after being relaxed by the LCD case. Thus, the force transmitted to the liquid crystal display panel is reduced, and the liquid crystal display panel is prevented from being damaged. The LCD cover may receive force. The force is transmitted from the LCD cover to the liquid crystal display panel through the LCD case. Therefore, the force applied to the liquid crystal display panel is transmitted to the liquid crystal display panel after being relaxed by the LCD case. Thus, the force transmitted to the liquid crystal display panel is reduced, and the liquid crystal display panel is prevented from being damaged.

  In the battery mounting device having the configuration A, one of the members of the LCD case and the LCD cover may have a claw that is hooked on a latching portion formed on the other one. Accordingly, the claw rationally connects the LCD case and the LCD cover. For example, the LCD cover is located on the front side of the LCD case. Therefore, the force received by the LCD cover is directed to the LCD case and can be received by the LCD case. For this reason, the LCD cover and the LCD case may be connected with a relatively small force that does not come off. Therefore, the LCD case and the LCD cover can be connected by a relatively simple structure called a claw.

  In the battery mounter having the configuration A, the LCD cover may have a curved surface whose center portion swells more to the front side than the surrounding portion. Therefore, the LCD cover is relatively difficult to be damaged by an external force. For example, when an external force is applied to the center of the LCD cover, the force is distributed to the outer periphery by the curved surface, and the external force can be received in a wide range.

  In the battery mounting device having the configuration A, the case may have a protruding portion that is formed around the opening window and protrudes outward from the LCD cover. Therefore, the protrusion is liable to receive an external force before the LCD cover. Thereby, the external force received by the LCD cover is reduced, and damage to the LCD cover can be suppressed.

  In the battery mounting device having the configuration A, the battery mounting device may include an operation button, a controller, and a cable. The operation button is operated to switch the screen of the liquid crystal display panel, and is provided on the case so as to be positioned near one edge of the liquid crystal display panel. The controller is provided in the case and emits a signal to the liquid crystal display panel. The cable extends from the other edge opposite to the one edge of the liquid crystal display panel and connects the liquid crystal display panel and the controller.

  Therefore, no cable is arranged between the liquid crystal display panel and the operation buttons. For this reason, the operation buttons are provided close to the liquid crystal display panel, and the operation buttons are 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 buttons. Therefore, the cable can connect the liquid crystal display panel and the controller in a relatively wide space.

  In the battery mounter having the configuration A, the case includes a back case and a front case that is attached to the back case and has an opening window. An LCD case may be attached to the front case. Thus, the LCD case and the liquid crystal display panel can be accurately and easily aligned with the opening window of the front case.

  In the battery mounter having the configuration A, the case includes a back case and a front case that is attached to the back case and has an opening window. A controller that emits a signal to the liquid crystal display panel and an LCD case on which the liquid crystal display panel is mounted may be provided on the back case. Therefore, both the liquid crystal display panel and the controller are mounted on the back case. Thus, the liquid crystal display panel and the controller can be electrically connected before the front case is attached to the back case.

  The above configuration will be described in detail below with reference to the drawings. As shown in FIG. 1, the battery checker 10 is an example of a battery mounter and includes a case 20 and a display output unit 17. The case 20 includes a back case 21 and a front 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 case 2, and an LCD cover 3. The liquid crystal display panel 1 has a rectangular plate shape and displays a diagnosis result of the electric tool battery B diagnosed by the battery checker 10. The LCD case 2 is dish-shaped and has a main body plate 2 a that holds the liquid crystal display panel 1. The back surface of the liquid crystal display panel 1 is bonded or attached to the surface of the main body plate 2a with an adhesive or the like.

  As shown in FIGS. 28 and 29, the LCD case 2 has a wall portion 2b along the outer periphery of the main body plate 2a. The wall 2b is higher than the thickness of the liquid crystal display panel 1 and protects the outer periphery of the liquid crystal display panel 1. The wall 2b has a notch 2f on the upper edge of the main body plate 2a, and the cable 4 is inserted therethrough. The cable 4 is, for example, a flat cable, extends from the upper edge of the liquid crystal display panel 1 through the notch 2f, and is connected to the circuit board 6 shown in FIG.

  As shown in FIGS. 28 and 29, an LCD cover 3 is attached to the LCD case 2. The LCD case 2 has a latching portion 2c that protrudes outward from the wall portion 2b. The latching portion 2c has, for example, a latching portion 2c that protrudes upward from the left and upper edges of the wall 2b, and a latching portion 2c that projects downward from the center of the lower edge of the wall 2b. . Each latching portion 2c is formed with a through-hole through which the claw 3e of the LCD cover 3 is inserted.

  As shown in FIGS. 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 2b. The mounting portion 2d extends upward from the back surface of the upper left region and the upper right region of the main body plate 2a. The mounting part 2e protrudes downward from the lower left part and the lower right part of the wall part 2b. Each mounting part 2d, 2e has a through-hole through which the leg of the screw 5 is inserted. The leg of the screw 5 is screwed into a boss 27e protruding from the back side of the front case 27 to the back side, and the head of the screw 5 holds the mounting portions 2d and 2e. As a result, the LCD case 2 is attached to the front case 27 by the screws 5 as shown in FIG.

  As shown in FIGS. 28 and 29, the LCD cover 3 has a rectangular plate shape and is made of a highly transparent resin. The LCD cover 3 includes a main body 3c opened by the opening window 27a, a flange 3a along the outer periphery of the main body 3c, and a claw 3e for mounting the LCD cover 3 on the LCD case 2. As shown in FIG. 31, the main body portion 3 c is mounted in the opening window 27 a and has a shape along the front side surface 101 of the front case 27. Therefore, the LCD cover 3 is excellent in aesthetics. The main body 3 c is located slightly inside the front side surface 101 of the front case 27. Therefore, the main body 3c is hardly subjected to external force, and the LCD cover 3 is not easily damaged.

  As shown in FIG. 31, the surface of the main body portion 3c of the LCD cover 3 has a shape along the front side surface 101 of the front case 27, and has a curved surface in which the central portion swells to the front side from the upper and lower portions. Therefore, when the main body 3c receives a force, the force is dispersed in the vertical direction by the curved surface. As shown in FIG. 28, the front case 27 has a protruding portion 27b that protrudes to the front side along the outer periphery of the opening window 27a. Therefore, the protrusion 27 b can reduce the external force applied to the LCD cover 3 by receiving the external force before the LCD cover 3.

  As shown in FIGS. 28 and 29, the flange portion 3a of the LCD cover 3 is located on the back side of the main body portion 3c and is annular along the main body portion 3c. A positioning projection 3d adjacent to the outer peripheral edge of the main body 3c is formed on the surface of the flange 3a. The protrusion 3d is installed in a recess 27g formed on the back surface of the front case 27 along the opening window 27a. The front and back positions of the LCD cover 3 and the front case 27 are determined by the surface of the protrusion 3d being in contact with or adjacent to the bottom surface of the recess 27g. When the outer peripheral end of the protrusion 3d is in contact with or adjacent to the peripheral wall of the recess 27g, the vertical and horizontal positions of the LCD cover 3 with respect to the front case 27 are determined.

  As shown in FIGS. 28 and 29, the LCD cover 3 has a plurality of claws 3 e for attaching to the LCD case 2. The claws 3e extend from the upper edge left part, upper edge right part, and lower edge center part of the LCD cover 3 to the back side. Each claw 3e has a tip portion protruding outward. The claw 3e is elastically deformed when inserted into the latching portion 2c of the LCD case 2 from the front side to the backside, and the tip portion is hooked on the latching portion 2c by elastically returning. The claw 3 e prevents the LCD cover 3 from coming off to the front side with respect to the LCD case 2. The claw 3e is elastically deformable in the vertical direction, and elastically holds the LCD cover 3 in the vertical direction with respect to the LCD case 2. On the other hand, the claw 3e is hardly elastically deformed in the left-right direction, and restricts the amount of movement of the LCD cover 3 with respect to the LCD case 2 in the left-right direction.

  As shown in FIGS. 28 and 29, the back surface of the flange portion 3 a of the LCD cover 3 abuts on the front end of the wall portion 2 b 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 side, the LCD cover 3 is supported from the back side by the wall portion 2 b of the LCD case 2.

  As shown in FIG. 33, the circuit board 6 includes a board body 6a, a controller 6b, and a discharge circuit 6c. The controller 6b is, for example, a micro control unit (MCU), and is connected to a battery B shown in FIG. The controller 6b has a flash memory that stores a program (firmware), an algorithm, and the like for diagnosing the state of the battery B based on a communication signal transmitted from the battery B. The discharge circuit 6c is connected to the battery B and discharges the battery B. The controller 6b can also diagnose the battery B by measuring the discharge capacity of the battery B at the time of discharging.

  As shown in FIGS. 33 and 36, a connector 6d is attached to the substrate body 6a, and a cable such as a micro USB is connected to the connector 6d. The circuit board 6 and the computer (PC) are connected by a cable, and the controller 6b transmits a diagnosis result of the battery B as a signal to the computer. The computer can receive and display the diagnosis result of the battery B. Further, the circuit board 6 and the printer may be connected by a cable. With this printer, the diagnosis result of the battery B may be printed.

  As shown in FIGS. 33 and 36, a card reader 6e is attached to the substrate body 6a, and a memory card such as an SD card is inserted into the card reader 6e. The memory card and the controller 6b are communicably connected by the card reader 6e. Therefore, the program (firmware) stored in the controller 6b can be updated based on the information stored in the memory card. Or the diagnostic result of the battery B etc. which are memorize | stored in the controller 6b can be transmitted to a memory card and recorded. It is also possible to connect a memory card recording the diagnosis result of the battery B to the computer, read the diagnosis result of the battery B by the computer, and display it on the display or print it out.

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

  As shown in FIG. 36, the controller 6b is communicably connected to the liquid crystal display panel 1 via the cable 4 shown in FIG. The liquid crystal display panel 1 receives the signal transmitted from the controller 6b and displays the diagnosis result of the battery B and the like.

  As shown in FIGS. 33 and 36, an operation unit (operation button) 18 and a power button 19 are attached to the substrate body 6a. The operation unit 18 includes a return switch SW1 that is a push button and a feed switch SW2 that is a push button. When the feed switch SW2 is pressed, a signal is transmitted to the controller 6b, and the controller 6b transmits 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. When the return switch SW1 is pressed, a signal is transmitted to the controller 6b, and the controller 6b transmits 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 when pressed. Based on a signal from the power button 19, the controller 6 b switches between an ON state in which power from the driving dry battery is supplied to the controller 6 b and the liquid crystal display panel 1 and an OFF state in which the power is cut off.

  As shown in FIGS. 31 and 32, the operation unit 18 and the power button 19 have leg portions 18a and 19a and head portions 18c and 19c. Switch mechanisms 18b and 19b electrically connected to the circuit board 6 are provided at the tips of the leg portions 18a and 19a, and operations of the operation unit 18 and the power button 19 are converted into electrical signals by the switch mechanisms 18b and 19b.

  As shown in FIGS. 31 and 32, the operation unit 18 and the heads 18 c and 19 c of the power button 19 are shaped along the front side surface 101 of the front case 27, and are located slightly behind the front side surface 101. Accordingly, it is possible to prevent the operation unit 18 and the power button 19 from being erroneously operated. The surface of the head 18 c of the operation unit 18 is inclined to the back side as the distance from the part close to the other operation unit 18 increases. Furthermore, the surface of the head 18c of the operation unit 18 is inclined backward from the top to the bottom. The head portion 19c of the power button 19 has a curved shape in which the central portion is located on the front side of the outer peripheral portion.

  As shown in FIGS. 29 and 31, the front case 27 has a boss 27 f protruding from the back surface, and the boss 27 f is in contact with the back case 21. A screw is inserted from the back side of the back case 21, and the tip of the screw is screwed into the boss 27f. As a result, the front case 27 is attached to the back case 21.

  The LCD case 2 may have another structure that supports the liquid crystal display panel 1 from the back, for example, a net-like shape or an annular shape having only an outer peripheral portion, instead of the main body plate 2a shown in FIGS. The LCD case 2 and the LCD cover 3 are attached by the latching portion 2c formed on the LCD case 2 and the claws 3e formed on the LCD cover 3 as described above. Instead of this, the LCD case 2 and the LCD cover 3 may be mounted by claws formed on the LCD case 2 and a latching portion formed on the LCD cover 3. Alternatively, the LCD case 2 and the LCD cover 3 may be mounted by other mounting structures such as screws.

  The liquid crystal display panel 1 described above displays the diagnosis result of the battery B diagnosed by the battery checker 10. Instead, the battery for the electric tool is mounted on a device different from the battery checker 10, and the liquid crystal display panel 1 receives and displays the state of the battery B mounted on the device, for example, the charging state from the controller. May be.

DESCRIPTION OF SYMBOLS 1 Liquid crystal display panel 2 LCD case 3 LCD cover 3e Claw 4 Cable 6 Circuit board 6b Controller 6c Discharge circuit 6d Connector 6e Card reader 10 Battery checker (battery mounting device)
DESCRIPTION OF SYMBOLS 101 Front side surface 102 Back side surface 11 Battery mounting part 12 Slide rail 13 Hook part 14 Connection terminal part 15 Terminal cover 17 Display output part 18 Operation part (operation button)
19 Power button 20 Case 201 Inner surface 21 Back case (lower case)
211, 212 Side wall 23 Dry cell storage portion 24 Storage cover 251 Locking hook 252 Screw 27 Front case (upper case)
27a Opening window 28 Male screw 29 Side rib 30 Latching structure 31 Latching hole 311 Left latching hole 312 Right latching hole 33 Large-diameter hole (first hole)
34 Inner peripheral edge 35 Small-diameter hole (second hole)
36 inner peripheral edge 37 connecting hole 38 inner peripheral edge 40 mounting portion 41 protruding edge (edge)
44 1st protrusion edge part 46 2nd protrusion edge part 48 3rd protrusion edge part 50 Closure part 51 Peripheral wall part 52 Circular part 55 Support guide part (attachment support part)
56 Support ribs 57 Horizontal ribs 58 Upper and lower ribs 59 Lower contact surface 60 Stopper part (removal restricting part)
61 Tapered surface 62 Upper contact surface 70 Lid member 71 Lid portion 73 First lid portion 731 First facing portion 732 First peripheral wall portion (wall portion)
735 Upper end 736 Abutting surface 74 Second lid portion 741 Second facing portion 742 Second peripheral wall portion 75 Opening portion 77 Lower opening portion 78 Opening end 79 Outer peripheral surface 81 Insertion guide portion 82 Insertion hole 83 Insertion portion (fit) Structure)
84 Face-to-face wall 851 Left side wall 852 Right side wall 87 Extension part 88 Step part B Battery S for electric tools S Male screw (holding member)
S1 Screw part S2 Screw head

Claims (8)

A battery mounter to which a battery for an electric tool is attached and detached,
Has a case as an exterior,
The case is provided with a hooking hole that allows the outer hooking member to be hooked by communicating the inside and outside of the case.
A battery mounting device, wherein a lid member that closes the opening of the retaining hole from the inside of the case is attached to an attachment portion set on the inner surface of the case. The battery mounter according to claim 1,
The attachment part has an attachment support part extending to a position facing the hooking hole,
The attachment support portion is a battery mounter that supports the attached lid member from the inside toward the retaining hole. The battery mounter according to claim 2, wherein
The battery mounting device, wherein an attachment direction of the lid member with respect to the attachment portion is set to an inner surface extending direction along an inner surface of the case. The battery mounter according to claim 3,
The battery mounting device, wherein the lid member is provided with a structure for fitting the attachment support portion. In the battery mounting device according to claim 3 or 4,
The attachment portion has a removal restricting portion that restricts removal of the lid member with respect to the attachment portion,
The mounting support portion is a battery mounting device that allows the mounting of the lid member to the mounting portion beyond the removal restricting portion by elastic deformation. The battery mounting device according to any one of claims 1 to 5,
The battery mounting device, wherein an attachment direction of the lid member with respect to the attachment portion is a direction from top to bottom. In the battery mounting device according to any one of claims 1 to 6,
The battery mounting device, wherein the lid member is provided with a wall portion that overlaps an edge portion provided in the attachment portion in a plate thickness direction. The battery mounting device according to any one of claims 1 to 7,
The latch member includes a leg portion embedded and supported in a wall, and a latch head portion having an outer diameter larger than the outer diameter of the leg portion,
The hooking hole has a first hole part into which the hooking head can be inserted, and an inner diameter shorter than the first hole part so as to prevent the hooked head from coming off. The battery mounting device, wherein the second hole portion is formed so as to be connected in a relationship of lower and upper.

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