JP2008277070A - Battery housing structure of electronic apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electronic apparatus and its battery housing structure capable of surely preventing either a cathode or an anode from contacting an electrode plate, even in case a rod-shaped battery is loaded in the housing part with an anode/cathode in reverse. <P>SOLUTION: The battery housing structure fitted to the electronic apparatus includes a cathode terminal 43 capable of electrically connecting with a cathode of the rod-shaped battery, and an anode terminal capable of electrically connecting with an anode of the rod-shaped battery, as well as contact-inhibiting means 52, 53 inhibiting contact between the anode and the cathode of the rod-shaped battery in case the rod-shaped battery is wrongly housed in the housing part with the anode to the cathode terminal and the cathode to the anode terminal and the rod-shaped battery falls over an axis center of the housing part so that an axis center of the battery does not coincide with that of the housing part. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a battery housing structure for an electronic device such as a computer mouse.

Conventionally, like an alkaline battery, it has a storage part that stores a rod-shaped battery that has a positive electrode at one end and a negative electrode at the other end, and can be used by storing the rod-shaped battery in this storage part (For example, refer to Patent Document 1).
The battery housing structure of this electronic device has a positive electrode terminal that can be electrically connected to the positive electrode of the rod-shaped battery and a negative electrode terminal that can be electrically connected to the negative electrode of the rod-shaped battery. On the contrary, there is provided a protrusion that restricts the position of the negative electrode of the rod-shaped battery when it is attached to the storage portion.
When the rod-shaped battery is mounted in the storage portion with its positive electrode / negative electrode reversed, the projecting portion prevents the negative electrode and the positive electrode terminal of the rod-shaped battery from being connected.
Japanese Utility Model Publication No. 5-62955

  By the way, generally the storage part in a battery storage structure has a diameter larger than the diameter of a rod-shaped battery, and makes it easy to accommodate a rod-shaped battery. For this reason, when the rod-shaped battery is stored in the storage portion, the shaft center of the rod-shaped battery and the shaft center of the storage portion do not match, and the rod-shaped battery is tilted (tilted) with respect to the shaft center of the storage portion. In such a case, in the conventional battery storage structure, when the rod-shaped battery falls down, the position of the negative electrode of the rod-shaped battery cannot be limited by the protruding portion, and the negative electrode of the rod-shaped battery There was a problem that it is considered that the positive electrode terminal comes into contact with each other and the both are electrically connected.

  Therefore, in view of the above problems, the present invention provides a battery storage for an electronic device that can reliably prevent the positive electrode or the negative electrode from coming into contact with the electrode even when the rod-shaped battery is mounted in the storage portion with its positive and negative electrodes reversed. The purpose is to provide a structure.

  The present invention is a battery storage structure for an electronic device provided with a storage portion for storing a rod-shaped battery having a positive electrode at one end and a negative electrode at the other end, and can be electrically connected to the positive electrode of the rod-shaped battery. The positive electrode terminal and the negative electrode terminal electrically connectable to the negative electrode of the rod-shaped battery, and the rod-shaped battery is erroneously placed in the storage section so that the negative electrode side of the rod-shaped battery is the positive electrode terminal side and the positive electrode side of the rod-shaped battery is the negative electrode terminal side. In addition, when the rod-shaped battery is tilted with respect to the shaft center of the housing portion so that the shaft center of the rod-shaped battery and the shaft center of the housing portion do not coincide with each other, contact between the negative electrode and the positive electrode terminal of the rod-shaped battery is prevented. Alternatively, contact blocking means for blocking contact between the positive electrode and the negative electrode terminal of the rod-shaped battery is provided.

  In the above configuration, when the rod-shaped battery is stored in the storage unit in the wrong direction, and the rod-shaped battery is tilted with respect to the shaft center of the storage unit so that the axis of the rod-shaped battery does not coincide with the axis of the storage unit. The contact blocking means prevents contact between the negative electrode and the positive electrode terminal of the rod-shaped battery, or prevents contact between the positive electrode and the negative electrode terminal of the rod-shaped battery. Thereby, heat generation and liquid leakage of the rod-shaped battery are prevented.

  In the battery housing structure of the present invention, the contact blocking means has a blocking surface that is closer to the rod-shaped battery than the positive electrode terminal and contacts a part of the outer periphery of the flat negative electrode of the rod-shaped battery, In the same plane, the blocking plane that abuts a part of the outer periphery of the negative electrode, and the protrusion of the positive electrode of the rod-shaped battery allow the positive electrode terminal to contact the positive terminal while extending from the blocking plane in the direction along the outer periphery of the negative electrode. It is characterized by being formed from an extended extension plane.

In the above configuration, the negative electrode of the rod-shaped battery is prevented from coming into contact with the positive electrode terminal by abutting between the blocking plane and the surface (plane), and the rod-shaped battery is prevented from falling with respect to the axis of the storage portion by the extension plane. Therefore, the negative electrode of the rod-shaped terminal is reliably prevented from coming into contact with the positive electrode terminal.
In addition, since the extension plane is extended in the same plane so as to extend from the blocking plane in the direction along the outer peripheral portion of the negative electrode, when the rod-shaped battery is mounted in the normal direction in the housing portion, the projection that is the positive electrode is the positive electrode. Allow contact with terminals.

  In the battery housing structure of the present invention, the positive electrode terminal is provided with a spherical raised portion that can be opposed to the protrusion of the rod-shaped battery, and the blocking plane and the extension plane are positioned closer to the rod-shaped battery than the tip of the raised portion. It is characterized by having.

  Even if it is a positive electrode terminal in which a raised portion that contacts the protrusion of the rod-shaped battery is formed as in the above configuration, the blocking plane and the extension plane are positioned closer to the rod-shaped battery side than the tip of the raised portion. The negative electrode of the battery is prevented from contacting the raised portion, that is, the positive electrode terminal.

  In the battery housing structure of the present invention, the raised portion is formed integrally with the electrode plate, and the end portion of the extension plane is formed in an arc shape disposed opposite to the outer wall of the raised portion with respect to the electrode plate. It is characterized by that.

  In the above configuration, the protrusion which is the positive electrode of the rod-shaped battery enters between the end portions of the extension plane and reliably contacts the raised portion.

  In the battery storage structure of the present invention, the storage portion is formed in the box-shaped main body, the negative electrode terminal is disposed at the back of the storage portion, and the positive electrode terminal is the end of the opening formed on one side of the main body. It is characterized by being attached to a lid mounted so as to slide to close the opening.

  In the above configuration, when the rod-shaped battery is housed in the housing portion so that the negative electrode of the rod-shaped battery is in the back, and the lid body is slid from one direction to the end of the opening of the body, the lid body is attached to the body. In the relationship between the positive electrode of the rod-shaped battery and the contact blocking means, the protrusion serving as the positive electrode moves relative to the front of one extension plane in the sliding direction, that is, the positive electrode avoids the contact blocking means. The positive electrode and the positive electrode terminal come into contact with each other.

  In the battery storage structure of the present invention, the lid is mounted from the middle of the end of the opening of the main body in the sliding direction, and the mounting means for allowing the mounting of the lid only from the middle of the sliding of the end of the opening is the main body. It is characterized by being provided at the end of the opening and the lid.

  In the above configuration, the lid is attached only from the middle of the end of the opening of the main body in the sliding direction and slides to close the opening. Therefore, the lid is slid as much as the lid is installed from the middle of the sliding direction of the opening. Therefore, the amount of collapse of the rod-shaped battery housed in the housing portion is reduced, and even if the rod-shaped battery is mounted in the wrong direction, the negative electrode of the rod-shaped battery is less likely to contact the positive electrode terminal.

  The present invention is a battery storage structure configured to store a plurality of rod-shaped batteries in a storage portion so as to be in the same direction and to be used in parallel connection, and is connected to a positive terminal and a load of an electronic device. A contact portion connected to the contact point is provided so as to extend in the sliding direction of the lid.

  In the above configuration, the power supply time is extended by storing a plurality of rod-shaped batteries in the storage unit in the normal direction and using them in parallel connection.

Further, even when a plurality of rod-shaped batteries are stored in the storage portion, the contact between the wrong pole and the terminal is blocked by the contact blocking means. In particular, a battery storage structure in which a plurality of rod-shaped batteries are used in parallel connection, a positive electrode terminal is provided on the cover body, and the storage section is closed by sliding the cover, and the load on the electronic device is achieved by sliding the cover body. In the positive electrode terminal having a contact portion connected to the positive electrode terminal, the positive electrode terminal itself becomes larger by the amount provided.
Therefore, it is assumed that the negative electrode of the rod-shaped battery is likely to come into contact with the positive electrode terminal as much as the positive electrode terminal itself becomes large, but since contact prevention means is provided, this makes contact between the negative electrode of the rod-shaped battery and the positive electrode terminal. Is blocked.

  Furthermore, when using parallel connection, if only one of the plurality of rod batteries is mounted in the normal direction, the other rod batteries are prevented from contacting the wrong pole and terminal by the contact blocking means. However, since electric power is supplied to the electronic device from the rod-shaped battery mounted in the normal direction, the electronic device can be operated.

  In the battery storage structure of the present invention, the storage part is provided with a holding part that is provided in a direction perpendicular to the axial direction of the storage part and holds the rod-shaped battery in contact with the outer peripheral surface in the longitudinal direction. It is characterized by being.

In the above configuration, in a state where the rod-shaped battery is housed in the housing portion, the rod-shaped battery is prevented from greatly falling with respect to the shaft center of the housing portion by the holding portion coming into contact with the outer peripheral surface in the middle of the length direction. Therefore, it becomes difficult for the negative electrode of the rod-shaped battery to contact the positive electrode terminal.

The present invention is an electronic device comprising any one of the battery housing structures described above.
The type of the electronic device is not particularly limited as long as it is a computer mouse, a digital camera, a navigation device, or the like that is used by attaching a rod-shaped battery to the storage unit.
In these electronic devices, even if a plurality of rod-shaped batteries are housed in the housing portion, the contact prevention means prevents the negative electrode of the rod-shaped battery from coming into contact with the positive electrode terminal, or contact between the wrong electrode and terminals. Thus, heat generation and liquid leakage of the rod-shaped battery can be prevented.

  According to the present invention, when the rod-shaped battery is stored in the storage portion in the wrong direction, and the rod-shaped battery is tilted with respect to the shaft center of the storage portion so that the axis of the rod-shaped battery does not coincide with the axis of the storage portion. The contact blocking means prevents the contact between the negative electrode and the positive electrode terminal of the rod-shaped battery, or prevents the contact between the positive electrode and the negative electrode terminal of the rod-shaped battery. Liquid leakage can be prevented.

Hereinafter, a battery housing structure of an electronic apparatus according to an embodiment of the present invention will be described using a computer mouse as an example.
1 is an overall schematic perspective view of a mouse showing an embodiment of the present invention, FIG. 2 is a perspective view of a state in which the lid is removed and an alkaline dry battery is to be accommodated, and FIG. 3 is a battery compartment in a state in which the lid is removed. FIG. 4 is a perspective view showing the internal structure of the battery housing, FIG. 5 is a perspective view of the lid, and FIG. 6 is an exploded perspective view showing a part of members constituting the mouse.

  As shown in these drawings, a mouse 1 according to an embodiment of the present invention is provided on the other side of a mouse body 4 that is arranged on one side and has left and right click operation units 2 and 3. And a battery storage body 7 (corresponding to a box-shaped main body) for storing alkaline dry batteries (hereinafter simply referred to as “batteries”) 5 and 6 as rod-shaped batteries.

  As will be described later, the mouse 1 is a contact for preventing the negative electrode 11 and the positive electrode terminal 43 of the batteries 5 and 6 from coming into contact when the batteries 5 and 6 are stored in the battery storage body 7 in the wrong direction. Blocking means are provided.

  In addition, the batteries 5 and 6 are general alkaline batteries, and the body 8 is formed in a columnar shape. A protrusion 10a is formed with one end as the positive electrode 10, and the negative electrode 11 at the other end is substantially omitted. It is formed in a plane.

The battery housing 7 has a housing portion (housing space) 12 in which a plurality of (two in the drawing) batteries 5 and 6 can be housed. The storage portion 12 is formed by a back bottom wall 13, an upper wall 14, a lower wall 15, and both side walls 21 and 22, and a portion facing the back bottom wall 13 (one of the battery storage bodies 7) is rectangular. An opening 16 is formed.
The batteries 5 and 6 are inserted into and removed from the opening 16 in the axial direction A of the storage portion 12 with respect to the storage portion 12. Further, the mouse 1 is configured such that a plurality of batteries 5 and 6 are inserted into the battery housing 7 in the same direction, that is, from the negative electrode 11 side.

Coil spring-like negative terminals 17 and 17 are arranged side by side in the longitudinal direction of the mouse 1 (a direction along a sliding direction described later) on the bottom wall 13 of the back part of the storage part 12.
Ribs 18 are formed at predetermined locations on the upper wall 14 and the lower wall 15 of the battery housing 7 that forms the housing 12.

The body 8 of the batteries 5 and 6 is brought into contact with the upper wall 14 and the lower wall 15 of the battery storage body 7 in the middle of the outer peripheral surface on the end side, so that the attitude of the batteries 5 and 6 (the axial direction A of the storage section 12). The holding | maintenance part 20 for holding | maintenance is provided. The holding unit 20 is disposed as close to the opening 16 as possible with respect to the storage unit 12.
The holding portion 20 protrudes across the storage portion 12 in a direction orthogonal to the axial direction A of the storage portion 12 and is formed integrally with the upper wall 14 and the lower wall 15.

  The holding portion 20 is formed on each of the upper wall 14 and the lower wall 15 of the battery housing 7, and concave portions 23 and 24 that are recessed toward the side walls 21 and 22 with a curvature corresponding to the curvature of the body 8 of the batteries 5 and 6. It is formed in pairs. The batteries 5 and 6 are inserted into the recesses 23 and 24 and stored in the storage unit 12, and the recesses 23 and 24 of the holding unit 20 and the body 8 of the batteries 5 and 6 are easily stored. A gap is formed between the two.

  The opening 16 is configured to be closed by the lid body 25. The opening 16 is formed continuously with the opening 16 by notching a part of one side of the side walls 21 and 22 so as to be formed in an L shape in plan view. That is, the lid body 25 is formed in an L shape so as to face the opening 16 having the notch space 26.

  The lid 25 is mounted so as to slide in the longitudinal direction of the mouse 1 on the rectangular end portion 27 in front view, which is the outer periphery of the opening 16, and is in a flat plate shape so as to close the opening 16 of the battery housing 7. Are formed integrally with the flat plate portion 30 and the bent portion 31 formed integrally with the flat plate portion 30 and closing the notch space 26.

  At the end of the bent portion 31, first insertion pieces 32 and 33 projecting in the longitudinal direction are formed in a pair of upper and lower sides. These first insertion pieces 32 and 33 are formed at the end of the notch space 26 so as to be displaced from the notch end surface 34 of the battery housing 7 to the inside of the notch space 26 and the notch end surface. The lid body 25 is inserted into the gap 37 between them by sliding the lid body 25.

  The end side 38 opposite to the longitudinal direction with respect to the bent portion 31 is inclined so as to be inclined with respect to the longitudinal direction. A second insertion piece 40 is formed at the back of the end side 38 so as to protrude further in the longitudinal direction. The second insertion piece 40 is a second insertion piece 40 formed on the rectangular end portion 27 of the battery housing body 7. This is a portion that is inserted into the inserted piece 41 by sliding the lid body 25.

  The positive electrode terminal 43 is attached to the inner surface (back side surface) of the flat plate portion 30 of the lid body 25. The positive terminal 43 has an electrode plate 44 and a raised portion 45 formed integrally with the electrode plate 44. The electrode plate 44 includes a pressed portion 46 formed integrally with the flat plate portion 30 and extension plate portions 47 and 48 having raised portions 45 on both sides thereof.

  Therefore, the raised portions 45 are spaced apart from each other in the longitudinal direction of the mouse 1, and the spacing distance is equal to the spacing distance between the negative electrode terminals 17 and 17. The pressed portion 46 is pressed and fixed to the flat plate portion 30 by a pressing piece 50 formed at the center in the longitudinal direction of the mouse 1.

  The shape of the raised portion 45 is not particularly specified as long as it protrudes from the electrode plate 44, but in this embodiment, the raised portion 45 is formed in a spherical shape. That is, the base end (outer wall) of the raised portion 45 is circular.

  One extension plate portion 47 is integrally formed with a plate-like contact portion 51 extending in the longitudinal direction of the mouse 1 (sliding direction of the lid body 25). The end portion of the contact portion 51 protrudes in the longitudinal direction from the end portion of the second insertion piece 40.

  When the positive electrode 10 and the negative electrode 11 of the batteries 5 and 6 are attached to the storage unit 12 in the wrong direction, the negative electrode 11 and the positive electrode terminal 43 come into contact with the flat plate portion 30 of the lid 25 (electrically connected). Contact blocking pieces 52 and 53 are provided to prevent this.

The contact blocking pieces 52 and 53 are integrally formed with the lid body 25 so as to extend from the upper end portion side to the lower side of the lid body 25, and the longitudinal center of the contact blocking pieces 52 and 53 and the positive electrode terminal. The center of the 43 raised portions 45 coincides with the center.
The contact blocking pieces 52, 53 are displaced from the electrode plate 44 of the positive terminal 43 toward the back side in the axial direction A of the storage portion 12 and are arranged in parallel to the electrode plate 44. That is, the contact blocking pieces 52 and 53 are arranged with a gap in the electrode plate 44 of the positive terminal 43, and accordingly, are arranged on the inner side in the axial direction A.

  In the contact blocking pieces 52 and 53, an end surface located on the battery side (back side) in the mounted state of the lid body 25 is used as a blocking surface 54. The blocking surface 54 is a surface that is closer to the battery than the tip of the raised portion 45 of the positive electrode terminal 43 and contacts a part of the outer peripheral portion of the negative electrode 11 of the batteries 5 and 6.

The contact blocking pieces 52 and 53 are formed with an allowable recess 55 which is recessed in an arc shape on the upper side on the lower side. The allowable recess 55 is a portion along the body of the protrusion of the positive electrode 10 of the batteries 5 and 6, and is a portion formed to allow the tip of the protrusion of the positive electrode 10 to contact the raised portion 45.
The arc shape of the allowable recess 55 has the same curvature as that of the base end of the raised portion 45, and is arranged at a position that coincides with the arc of the allowable recess 55 in the axial direction A.

  With such a configuration, the blocking surface 54 allows and blocks the blocking flat surface 56 that contacts a part of the outer peripheral portion of the negative electrode 11 and the protrusion 10 a of the positive electrode 10 of the batteries 5 and 6 from contacting the positive electrode terminal 43. When it is assumed that the batteries 5 and 6 are mounted in the wrong direction from the plane 56, the battery 5 and 6 is extended in the same plane as the blocking plane 56 so as to run in the direction along the outer periphery of the negative electrode 11 of the batteries 5 and 6. And an extension plane 57.

The blocking plane 56 is formed to have a longitudinal width larger than the diameter of the raised portion 45, and the extended plane 57 is parallel to the extended plate portions 47 and 48 and extends along the base end of the raised portion 45. Along the outer edge of the base end, it extends to the radius of the raised portion 45.
The distance from the blocking surface 54 to the tip of the raised portion 45 is set to be equal to or slightly smaller than the height of the protrusion 10a of the positive electrode 10 of the batteries 5 and 6.

The lid body 25 is attached to the rectangular end portion 27 of the opening 16 of the battery housing body 7 from the middle in the sliding direction.
That is, the mounting means 58 that allows the mounting of the lid body 25 only in the middle of the sliding direction of the rectangular end portion 27 of the opening 16 is provided on the rectangular end portion 27 and the lid body 25 of the opening 16 of the battery housing body 7.

  The mounting means 58 of the battery housing 7 is a mounting prevention member 60 provided at the lower rectangular end 27. The attachment blocking member 60 is disposed at the corner of the rectangular end portion 27 of the opening 16 and has a rib shape formed integrally with the rectangular end portion 27.

The attachment blocking member 60 is provided at the corner of the rectangular end portion 27 along the longitudinal direction. The attachment blocking member 60 is arranged on the back side by the thickness of the lid body 25 from the end face of the rectangular end portion 27. A front flat surface of the mounting preventing member 60 is used as a mounting blocking surface 54 a, and the mounting blocking surface 54 a also serves as a lid hook in the axial direction A of the lid body 25.
A longitudinal side cover 61 along the axial direction A is formed at one end of the mounting preventing member 60. The longitudinal side lid hook 61 is arranged on the back side from the end face of the rectangular end portion 27 by the thickness of the bent portion 31 of the lid body 25.

  On the extension of the mounting preventing member 60 in the other direction in the longitudinal direction, an axial center side cover 62 is provided so as to be separated from the mounting preventing member 60 by a predetermined distance in the longitudinal direction. The axial direction side lid hook 62 is also arranged on the back side from the end face of the rectangular end portion 27 by the thickness of the flat plate portion 30 of the lid body 25.

  The mounting means 58 on the lid 25 side is an insertion piece 63 provided at the lower end on the inner surface of the flat plate portion 30 of the lid 25. The insertion piece 63 is formed integrally with the flat plate portion 30 at the center in the longitudinal direction of the flat plate portion 30 and is formed so as to protrude in the axial direction A.

  The length of the insertion piece 63 in the longitudinal direction is set to be smaller than the separation distance between the attachment blocking member 60 and the axial center side cover hook 62, and the lid body 25 is slid from the middle position in the longitudinal direction of the opening 16. When mounted on the rectangular end portion 27 of the opening 16, the insertion piece 63 and the axial center side cover 62 are set to contact each other in the longitudinal direction.

  In the embodiment of the present invention, the contact blocking means includes the holding portion 20, contact blocking pieces 52 and 53, and mounting means 58.

  In the mouse 1 configured as described above, a plurality of batteries 5 and 6 can be inserted into the storage portion 12 of the battery storage body 7 from the opening 16 of the battery storage body 7 and can be taken out from the opening 16. ing. That is, with the lid 25 removed, the batteries 5 and 6 are inserted from the openings 16 with the negative electrode 11 facing away from each other. At this time, when the batteries 5 and 6 are mounted in the storage part 12 so that the body 8 is inserted into the recesses 23 and 24 of the holding part 20, the batteries 8 and 6 are inserted into the recesses 23 and 24. The guided batteries 5 and 6 can be smoothly mounted in the storage portion 12.

  Note that when the negative electrode 11 of the batteries 5 and 6 is mounted on the storage portion 12 with the negative electrode 11 in the back side, the negative electrode 11 comes into contact with the negative electrode terminal 17. Further, even if the positive electrodes 10 of the batteries 5 and 6 are inserted into the housing portion 12 with the positive electrodes 10 on the back side, the positive electrodes 10 are in contact with the negative electrode terminals 17.

A case where the lid 25 is attached to the rectangular end portion 27 of the opening 16 of the battery housing 7 after the batteries 5 and 6 are attached to the housing 12 will be described.
In the lid body 25, the bent portion 31 is positioned on one side in the longitudinal direction of the rectangular end portion 27, the second insertion piece 40 is positioned on the other side in the longitudinal direction, and the positive electrode terminal 43 is on the back side. Align to. At this time, even if the lid 25 is moved to the opening 16 side so that the insertion piece 63 faces the mounting prevention member 60 in the axial direction A, the insertion piece 63 hits the mounting prevention member 60 and the lid 25 is It cannot be attached to the rectangular end portion 27.

Therefore, when the insertion piece 63 is inserted into the gap between the attachment blocking member 60 and the axially-direction-side cover 62, the outer peripheral portion of the inner surface of the flat plate portion 30 of the lid 25 is axially aligned with the attachment-preventing surface 54a. A contact is made at A, and the lid body 25 is slid to the other side in the longitudinal direction as it is.
Then, the lid body 25 is guided by the attachment blocking member 60 and the axial direction side lid hook 62, the first insertion pieces 32 and 33 are inserted into the first insertion pieces 35 and 36, and the second insertion piece 40 is inserted. The insertion piece 63 is inserted into the second insertion piece 41, and the insertion piece 63 and the axial center side cover 62 come into contact with each other in the longitudinal direction, and the lid body 25 is attached to the rectangular end portion 27.

  If the insertion piece 63 is inserted into the gap between the attachment blocking member 60 and the axial center side cover 62, the batteries 5 and 6 urged toward the opening 16 by the coil spring-like negative terminal 17 are provided. Since the protruding portion 10a of the positive electrode 10 contacts the raised portion 45 of the positive electrode terminal 43 in a misaligned state, the lid body 25 is pressed toward the back side against the elasticity of the negative electrode terminal 17, so that As shown, the lid 25 is slid to the other side in the longitudinal direction.

  The first insertion pieces 32 and 33 are inserted into the first insertion pieces 35 and 36, the second insertion piece 40 is inserted into the second insertion piece 41, and the insertion piece 63 and the axial direction side cover. When the lid body 25 is slid until it comes into contact with the hook 62 in the longitudinal direction, the protruding portion 10a of the positive electrode 10 of the batteries 5 and 6 comes into contact with the raised portion 45 in front of each other.

  In addition, the contact blocking pieces 52 and 53 are formed with an allowable concave portion 55 that is recessed in an arc shape on the lower side thereof, and the distance from the blocking surface 54 to the tip of the raised portion 45 is the distance between the batteries 5 and 6. Since the height is set to be equal to or slightly smaller than the height of the protrusion 10 a of the positive electrode 10, the protrusion 10 a of the positive electrode 10 can contact the raised portion 45 even if the contact blocking pieces 52, 53 are present.

  As described above, the batteries 5 and 6 are mounted in the normal direction in the same direction, so that the batteries 5 and 6 are connected in parallel via the positive terminal 43 and the negative terminal 17 and power is supplied from the contact portion 51. Thus, the electronic components mounted on the mouse 1 can be driven.

  By the way, one or both of the batteries 5 and 6 may be inserted into the storage unit 12 in the wrong direction. Below, the case where it is going to close the cover body 25 in the state which inserted one or both of the batteries 5 and 6 in the wrong direction is demonstrated.

  The wrong direction means that the positive electrode 10 of the batteries 5 and 6 is located on the back side of the housing portion 12, the positive electrode 10 is in contact with the negative electrode terminal 17, and the negative electrode 11 of the batteries 5 and 6 is located on the opening 16 side. This is the case when it is installed.

  Even in this state, the negative electrode terminal 17 has a coil spring shape and expands and contracts when pressed and released, and the length of the batteries 5 and 6 does not change. Therefore, the lid body 25 is attached to the rectangular end portion 27 and opened. 16 can be blocked. The lid body 25 is attached to the rectangular end portion 27 in the same manner as described above.

  By the way, since the mouse 1 is provided with contact blocking means comprising the holding portion 20, the contact blocking pieces 52 and 53, and the mounting means 58, the batteries 5 and 6 are placed in the storage portion 12 in the wrong direction. Even if the lid 25 is housed and mounted, the negative electrodes 11 of the batteries 5 and 6 do not contact the positive terminal 43.

Specifically, the holding unit 20 prevents the batteries 5 and 6 from falling over by contacting the body 8.
In addition, since the lid 25 is attached to the rectangular end 27 of the opening 16 of the battery housing 7 from the middle of the sliding direction as described above, the longitudinal direction of the rectangular end 27 of the opening 16 is set. The slide distance is extremely short compared with the case where the user slides from one side and attaches. That is, the amount by which the batteries 5 and 6 that are in contact with the lid 25 side fall is reduced by the amount that the sliding distance is shortened.
Further, contact blocking pieces 52 and 53 are interposed between the negative electrode 11 and the positive electrode terminal 43 of the batteries 5 and 6 to prevent the negative electrode 11 and the positive electrode terminal 43 of the batteries 5 and 6 from contacting each other. Yes.

  In addition, the blocking plane 56 of the contact blocking pieces 52 and 53 is formed with a longer width in the longitudinal direction than the diameter of the raised portion 45, and the extended plane 57 is parallel to the extended plate portions 47 and 48 and the proximal end of the raised portion 45. Along the outer contour of the base end of the raised portion 45, the radius of the raised portion 45 is extended to about the radius. Therefore, even if the batteries 5 and 6 are largely collapsed, the outer peripheral portion of the negative electrode 11 particularly hits the extension plane 57, and the negative electrode 11 and the positive electrode terminal 43 can be reliably prevented from contacting each other. Therefore, a short circuit state can be avoided and heat generation and liquid leakage of the batteries 5 and 6 can be prevented.

Further, by mounting the batteries 5 and 6 in the same direction and in the normal direction, the batteries 5 and 6 are connected in parallel via the positive electrode terminal 43 and the negative electrode terminal 17. If at least one is mounted in the normal direction, power is supplied from the battery to the electronic components of the mouse 1, so that the mouse 1 can be operated.
Particularly in recent years, an IC chip that can be operated with a small electric power (for example, 1.5V) has been developed. In the mouse 1, at least one of the two batteries 5 and 6 is mounted in a normal direction in the mouse 1. If the battery mounted in the reverse direction is not in contact with the positive terminal 43, power is supplied from the battery mounted in the normal direction to the electronic components of the mouse 1 to operate the mouse 1. Is possible. The two batteries 5 and 6 are used in order to ensure a long power supply time.

In the above embodiment, the case where two batteries are stored side by side in the storage unit 12 is shown, but the present invention is not limited to this. That is, the storage section may form a space in which only one battery can be stored, or may have a configuration having a space in which three or more batteries can be stored side by side.
When there is one battery, the length in the longitudinal direction of the storage section is shortened, and when there are three or more batteries, the length in the longitudinal direction of the storage section is increased. By providing the member with an appropriate length and number, even if the battery is stored in the storage unit in the wrong direction and the lid is attached, contact between the negative electrode and the positive terminal of the battery can be prevented.

  In the said embodiment, although comprised so that the state in which the negative electrode 11 and the positive electrode terminal 43 of the batteries 5 and 6 were connected was comprised, it is not limited to this. That is, it can be considered that the positive electrodes 10 of the batteries 5 and 6 are prevented from being connected to the negative electrode terminal 17.

  In this case, for example, as shown in FIG. 7, the positive terminal 43 provided on the lid 25 is elastic (not limited to a coil spring, but a leaf spring shape) to urge the batteries 5 and 6 to the back side of the storage portion 12. The plate-like negative electrode terminal 17 is provided on the back side of the storage portion 12. And in the negative electrode terminal 17, the hole 65 is formed in the longitudinal direction center, and when the batteries 5 and 6 are inserted in the accommodating part 12 in the wrong direction, the positive electrode 10 of the batteries 5 and 6 contacts. Then, an insulator 66 as a contact blocking means is filled.

  For example, the insulator 66 is formed of a highly elastic synthetic rubber or the like, and includes a contact portion 67 that fills the hole 65, and a plate-like fixing portion 68 on the side of the anti-battery 5, 6 of the contact portion 67. It is integrally formed from. The contact portion 67 is formed in a truncated cone shape having a larger diameter on the battery 5 and 6 side than the anti-battery 5 and 6 side, and the front surface 70 on the battery 5 and 6 side of the contact portion 67 is the battery 5 and 6. The curved surface is curved so as to protrude toward the sixth side.

A gap 71 is set between the contact portion 67 and the peripheral surface of the hole 65 to be filled when the contact portion 67 is pressed by the electrodes of the batteries 5 and 6 and elastically deformed.
The fixing portion 68 is sandwiched between the back surface of the negative electrode terminal 17 and the battery housing body 7.

  According to this configuration, when the batteries 5 and 6 are inserted into the storage unit 12 in the wrong direction and the opening 16 of the battery storage body 7 is closed by the lid 25, the batteries 5 and 6 are stored by the elasticity of the positive terminal 43. Depending on the shape of the pressing surface of the positive electrode 10, the positive electrode 10 of the batteries 5, 6 abuts against the front surface 70 of the abutting portion 67 and presses it. The front surface 70 is deformed so as to be recessed so that the batteries 5 and 6 are not easily displaced. In addition, the contact portion 67 is elastically deformed so as to fill the gap 71 by this deformation.

  When the batteries 5 and 6 are inserted into the storage portion 12 in the normal direction, the negative electrode 11 of the batteries 5 and 6 contacts the front surface 70 of the contact portion 67 and presses the front surface 70 so that the front surface 70 is flat. The negative electrode 11 of the batteries 5 and 6 comes into contact with the negative electrode terminal 17. As a result, power can be supplied to the electronic components of the mouse 1. Other configurations are the same as those of the embodiment shown in FIGS.

1 is an overall schematic perspective view of a mouse showing an embodiment of the present invention. A perspective view of a state in which the lid is also removed and the battery is to be stored. Side view of the battery case with the lid removed The perspective view which similarly shows the internal structure of a battery storage body Similarly perspective view of the lid The exploded perspective view showing a part of member which constitutes a mouse similarly Schematic sectional view of a battery housing structure showing another embodiment

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Mouse, 4 ... Mouse body, 5, 6 ... Battery, 7 ... Battery storage body, 8 ... Body, 10 ... Positive electrode, 10a ... Projection, 11 ... Negative electrode, 12 ... Storage part, 13 ... Back bottom wall, DESCRIPTION OF SYMBOLS 16 ... Opening, 17, 17 ... Negative electrode terminal, 20 ... Holding part, 21,22 ... Side wall, 23, 24 ... Recessed part, 25 ... Cover body, 27 ... Rectangular edge part, 30 ... Flat plate part, 34 ... Notch end surface, 43 ... positive electrode terminal, 44 ... electrode plate, 45 ... raised portion, 47, 48 ... extension plate portion, 52, 53 ... contact blocking piece, 54 ... blocking surface, 54a ... mounting blocking surface, 55 ... allowable recess, 56 ... blocking plane 57 ... Extension plane, 58 ... Mounting means, 60 ... Mounting prevention member, 63 ... Insertion piece, A ... Axial direction

Claims (9)

A battery storage structure for an electronic device provided with a storage portion for storing a rod-shaped battery having a positive electrode at one end and a negative electrode at the other end,
A positive electrode terminal electrically connectable to the positive electrode of the rod-shaped battery; and a negative electrode terminal electrically connectable to the negative electrode of the rod-shaped battery; the negative electrode side of the rod-shaped battery is the positive electrode terminal side; When the rod-shaped battery is accidentally stored in the storage portion so that the axis of the rod-shaped battery and the axis of the storage portion do not coincide with each other, the rod-shaped battery is tilted with respect to the axis of the storage portion. A battery housing structure comprising contact preventing means for preventing contact between the negative electrode and the positive electrode terminal of the battery or preventing contact between the positive electrode and the negative electrode terminal of the rod-shaped battery.   The contact blocking means has a blocking surface that is closer to the rod-shaped battery side than the positive electrode terminal and comes into contact with a part of the outer peripheral portion of the flat negative electrode of the rod-shaped battery, and the blocking surface is formed on a part of the outer peripheral portion of the negative electrode. Formed from an abutting blocking plane and an extension plane extending in the same plane so as to extend from the blocking plane in a direction along the outer periphery of the negative electrode while allowing the positive electrode protrusion of the rod-shaped battery to contact the positive electrode terminal The battery housing structure according to claim 1, wherein the battery housing structure is formed.   The positive electrode terminal is provided with a spherical raised portion that can be opposed to the protrusion of the rod-shaped battery, and the blocking plane and the extension plane are positioned on the rod-shaped battery side with respect to the tip of the raised portion. Item 3. The battery housing structure according to Item 2.   4. The raised portion is formed integrally with the electrode plate, and the tip portion of the extended plane is formed in an arc shape arranged opposite to the outline of the raised portion with respect to the electrode plate. The battery storage structure described.   The storage part is formed in the box-shaped main body, the negative terminal is arranged at the back of the storage part, and the positive terminal slides on the main body at the end of the opening formed on one side of the main body so as to close the opening The battery housing structure according to any one of claims 2 to 4, wherein the battery housing structure is attached to a lid to be mounted.   The lid is mounted from the middle of the end of the opening of the main body in the sliding direction, and mounting means for allowing the mounting of the lid only from the middle of the sliding of the end of the opening is the end of the main body and the lid. The battery storage structure according to claim 5, wherein the battery storage structure is provided on the battery.   A battery storage structure in which a plurality of rod-shaped batteries are stored in a storage portion so as to be in the same direction and used in parallel connection, and connected to a positive electrode terminal and a contact point connected to a load of an electronic device The battery housing structure according to claim 5 or 6, wherein the contact portion is provided so as to extend in a sliding direction of the lid.   The storage portion is provided with a holding portion that is provided in a direction orthogonal to the axial direction of the storage portion and holds the rod-shaped battery in contact with the outer circumferential surface in the middle of the length direction. The battery housing structure according to any one of claims 1 to 7.   An electronic apparatus comprising the battery housing structure according to any one of claims 1 to 8.

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