JP2012212551A - Battery box - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a battery box capable of exchanging a battery more easily.SOLUTION: A housing part 110 of a battery houses plural cylindrical batteries 20 in parallel to each other on a front side and a deep side when seen from its opening 111, and a battery lid 140 holds the plurality of batteries 20, and comprises a shielding part 141 covering the opening of the housing part, and a first arm part 142 and a second arm part 143 nipping the plural batteries in a cylindrical axis direction of the battery. The first arm part annularly extends inside the housing part from the shielding part, and is in face contact with a cylindrical bottom face on the positive electrode 21 side of the plural batteries. A folding part 142a at its tip contacts a side of a protrusion-shaped positive electrode of the battery on the deep side. The second arm part annularly extends inside the housing part from the shielding part, and is in face contact with a cylindrical bottom face on a negative electrode 22 side of the plural batteries. A folding part 143a at its tip contacts the side of the battery on the deep side.

Description

  The present invention relates to a battery box that houses a cylindrical battery, and is devised to facilitate battery replacement.

  An electronic device using a battery as a power source is provided with a predetermined battery box according to the form of the battery to be used. In the case of an electronic device using cylindrical batteries each having a positive electrode and a negative electrode at both ends, the battery box includes a storage unit that stores the battery, a terminal unit that contacts the positive electrode, and a terminal unit that contacts the negative electrode. At least one of the terminal portions has a spring property for pressing the battery. In particular, it is well known that the opening of the storage part exposes the side surface of the battery and the terminal part on the negative electrode side is a coil spring. Such a battery box is also disclosed in Patent Documents 1 and 2, etc. ing. In addition, as disclosed in Patent Document 3 and the like, a battery box is also known that is configured to hold a battery in a battery lid and attach and detach it to a predetermined storage portion.

Japanese Patent No. 4025557 JP-A-11-176406 JP 2001-76694 A

  In recent years, the housing forms of electronic devices have been increasingly diversified, and it is considered that further structural ingenuity is necessary for the battery box to easily replace the battery.

  Regarding the battery box, there are various types of storage units for storing the battery. The inventor of the present application holds the battery in the battery lid for the case where the opening of the storage portion exposes the side surface of the battery and stores a plurality of batteries arranged in parallel on the front side and the back side as viewed from the opening. We decided to examine the composition. In particular, it is desirable that battery replacement is easy for the battery box. In this regard, as described above, if the terminal portion has a spring property for pressing the battery, when the battery is not housed, the dimension between the terminal parts is somewhat shorter than the dimension in the cylindrical axis direction of the battery. That is, when the battery is mounted, the battery is pushed in while compressing the terminal portion. Moreover, when removing a battery, the terminal part which is pressing the battery will be dragged by the battery. Therefore, the work for replacing the battery needs to be performed with sufficient consideration so that the terminal portion is not damaged. And when storing multiple batteries side by side parallel to the front side and the back side when viewed from the opening, the back side battery will pass between the terminals of the front side battery. There is also a problem that it is difficult to remove. In addition to the structure of the battery lid that holds the battery on the front side and the battery on the back side, it is considered necessary to have a configuration that can cope with such a problem.

  This invention is made | formed in view of this situation, The objective is to provide the battery box which can perform battery replacement | exchange more easily.

  The invention described in the first claim of the present application includes a storage portion for storing a cylindrical battery having a positive electrode and a negative electrode at both ends, a first terminal portion in contact with the positive electrode, and a second terminal portion in contact with the negative electrode. And a battery lid that covers the opening of the storage portion, wherein the storage portion has an opening that exposes a side surface of the battery, and the storage portion views a plurality of the batteries from the opening. The battery lid is for holding a plurality of the batteries, the shielding portion covering the openings, and the plurality of the batteries in the direction of the cylindrical axis thereof. The battery includes a first arm portion and a second arm portion sandwiched between the positive electrode and the battery, wherein the positive electrode is provided in a protruding shape, the negative electrode is provided flat, and the first arm portion is provided with the shielding portion. An annular one extending from the inside of the storage unit The plurality of batteries are in surface contact with the cylindrical bottom surface on the positive electrode side, and the folded portion at the tip thereof is in contact with the side surface of the positive electrode of the battery on the back side. A ring-shaped member extending from the inside of the housing to the inside of the housing, and in contact with the cylindrical bottom surface of the negative electrode side of the plurality of batteries, with the folded portion at the tip thereof contacting the side surface of the battery on the back side It is a battery box of the composition which is.

  According to a second aspect of the present invention, in the first aspect, the second terminal portion has a spring property for pressing the battery, and a contact surface in contact with the negative electrode is a spherical contact member. A cylindrical member that holds the contact member movably in the cylindrical axis direction of the battery; and a coil spring that urges the contact member toward the inside of the storage portion, and the contact is made when the battery is not stored. It is a battery box of the structure where the surface protrudes from the said cylindrical member inside the said accommodating part.

  ADVANTAGE OF THE INVENTION According to this invention, the battery box which can perform battery replacement | exchange more easily can be obtained.

It is a front view which concerns on the Example of this invention and shows an electronic device. 1 is a side view showing an electronic apparatus according to an embodiment of the present invention. It is a back view which concerns on the Example of this invention and shows an electronic device. It is side surface see-through explanatory drawing which shows the rear view which concerns on the Example of this invention and shows the electronic device (thing which removed the battery cover). BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a top cross-sectional view illustrating a main part of an electronic device according to an embodiment of the present invention and an explanatory diagram of a battery box. (A) is a top view which shows a 1st terminal part, (b) is a left view which shows a 1st terminal part concerning the Example of this invention. (A) is a top view which shows a 2nd terminal part, (b) is a right view which shows a 2nd terminal part concerning the Example of this invention. (A) is a top view showing a battery cover, (b) is a front view showing the battery cover, (c) is a left side view showing the battery cover, and (d) shows the battery cover. It is a right view.

  Embodiments of the present invention will be described below with reference to the drawings. The electronic apparatus 1 shown in FIGS. 1 to 8 is a timepiece unit in which necessary members such as a movement for driving a pointer, a circuit board, and a speaker are provided inside a case 10. The electronic device 1 is mounted on a predetermined exterior casing to constitute an hour clock.

  The case 10 is formed by assembling a first case member 11 constituting the front side thereof and a second case member 12 constituting the rear side thereof. The first case member 11 and the second case member 12 are resin injection-molded members molded into a predetermined shape, and are configured to be assembled by screwing or hooking each other.

  The electronic apparatus 1 uses a cylindrical battery 20 having a positive electrode 21 and a negative electrode 22 at both ends as a power source. Cylindrical unit cells include alkaline dry batteries, manganese dry batteries, nickel dry batteries, lithium dry batteries, nickel / hydrogen dry batteries, and the like, which are stored in a battery box 100 of a predetermined standard size. In the battery 20, the positive electrode 21 is provided in a protruding shape, and the negative electrode 22 is provided flat.

  In the case of this example, the battery box 100 is provided on the second case member 12. The battery box 100 includes a storage unit 110 that stores the battery 20, a first terminal unit 120 that contacts the positive electrode 21, a second terminal unit 130 that contacts the negative electrode 22, and a battery lid that covers the opening 111 of the storage unit 110. 140, and the second terminal portion 130 has a spring property to hold down the battery 20.

  The storage unit 110 stores the plurality of batteries 20 in parallel on the front side and the back side as viewed from the opening 111. The opening 111 exposes the side surface of the front battery 20 stored in the storage unit 110. The battery 20 is attached and detached through the opening 111. The opening 111 is located at the lower back of the case 10.

  The first terminal portion 120 is a metal plate formed by convexly forming a contact surface 120 a that contacts the positive electrode 21. The first terminal portion 120 is provided so as to support this at a main point of the second case member 12.

  The second terminal portion 130 houses the contact member 131 having a spherical contact surface 131a that contacts the negative electrode 22, a cylindrical member 132 that holds the contact member 131 movably in the cylindrical axis direction of the battery 20, and the contact member 131. And a coil spring 133 that urges the portion 110 toward the inside.

  As the contact member 131, a metal sphere is adopted. The cylindrical member 132 is made of a metal member formed in a predetermined shape, and includes an end rib 132a that prevents the contact member 131 from coming off, and a flange portion that supports the end rib 132a at a main point of the second case member 12. 132b. The coil spring 133 is a metal member having a predetermined elastic force. The contact member 131 and the coil spring 133 are sequentially inserted into the cylindrical member 132 from one bottom surface of the cylindrical member 132 (the bottom surface opposite to the storage portion 110), and the bottom surface compresses the coil spring 133. Then, the metal lid 132c is closed by welding, soldering, or concavo-convex fitting. When the battery 20 is not stored, the contact surface 131 a protrudes from the cylindrical member 132 to the inside of the storage unit 110.

  Inside the case 10, the storage portion 110 extends from the second case member 12 to the inside of the first case member 11. A plurality of first terminal portions 120 and a plurality of second terminal portions 130 are arranged at important points of the storage portion 110 according to the number of the batteries 20. Each of the first terminal portions 120 and each of the second terminal portions 130 are connected to each other by lead wires, and are connected to a circuit board inside the case 10. By providing the battery box 100 as described above, it is not necessary to prepare a member constituting the storage unit 110 separately from the case 10, so that the number of parts can be reduced. Moreover, since the lead wire is covered with the first case member 11 together with the circuit board, there is an advantage that the appearance is good.

  The battery lid 140 of this example is a resin injection molded member molded in a predetermined shape, and holds a plurality of batteries 20 stored in the storage unit 110. The battery lid 140 includes a shielding part 141 that covers the opening 110, and a first arm part 142 and a second arm part 143 that sandwich the plurality of batteries 20 in the cylindrical axis direction. The first arm portion 142 and the second arm portion 143 have moderate flexibility, and the plurality of batteries 20 push and spread between the arm portions 142 and 143 and have an elastic force therebetween. It is configured to be sandwiched between. In addition, a plurality of projecting pieces 144 and 145 are respectively provided at the important points of the shielding part 141, and the battery lid 140 has hole portions in which these projecting pieces 144 and 145 are provided at important points of the second case member. It is positioned and fixed by inserting, latching, or press-fitting into the.

  The first arm part 142 is an annular member extending from the shielding part 141 to the inside of the storage part 110, and is in surface contact with the cylindrical bottom surface of the plurality of batteries 20 on the positive electrode 21 side, and has a folded part 142 a at the tip thereof. It contacts the side surface of the positive electrode 21 of the battery 20 on the back side.

  The second arm part 143 is an annular member extending from the shielding part 141 to the inside of the storage part 110, and is in surface contact with the cylindrical bottom surface of the plurality of batteries 20 on the negative electrode 22 side and has a folded part at the tip thereof. 143a is in contact with the side surface of the battery 20 on the back side. The folded portion 143a of the second arm portion 143 is bent toward the side surface of the battery 20, and when the battery 20 is attached and removed, the folded portion 143a is used as the second terminal portion 130. It does not hit the contact surface 131a.

  The plurality of batteries 20 are mounted by being held in the battery lid 140 and inserted into the storage unit 110. Further, it is removed together with the lid 140. The folded-back portions 142a and 143a of the arm portions 142 and 143 are configured to be hooked in a well-balanced manner on the rear battery 20 when being removed.

  According to such a configuration, battery replacement can be performed more easily. In the battery box 100 of this example, the second terminal portion 130 has a spring property for pressing the battery 20. Therefore, when the battery 20 is not housed, the dimension between the terminal parts 120 and 130 is somewhat shorter than the dimension in the cylindrical axis direction of the battery 20, and the second terminal part 130 is compressed when the battery 20 is mounted. However, the battery 20 is pushed in. Further, when removing the battery 20, the terminal portions 120 and 130 holding the battery 20 are dragged by the battery 20. However, the second terminal portion 130 of this example is configured to urge the contact member 131 having a spherical contact surface 131a with the coil spring 133 while restricting the moving direction with the cylindrical member 132. The movement of the contact member 131 accompanying the attachment and removal is smooth, which is a very advantageous configuration in that it prevents damage. Further, the contact member 131 of this example is a metal sphere and can rotate inside the cylindrical member 132. Therefore, when the friction with the battery 20 is strong, the contact member 131 rotates appropriately.

  In particular, the battery 20 can be mounted and removed with its posture parallel to the posture at the time of storage. For example, in a conventional device using a coil spring as an elastic body as a contact member, it is necessary to insert the battery once obliquely. Compared with such a thing, there also exists an advantage that the width | variety of the accommodating part 110 can be shortened.

  Further, when the battery 20 is stored side by side in parallel with the front side and the back side when viewed from the opening 111 of the storage unit 110, the back side battery 20 exceeds the terminals 120 and 130 of the front side battery 20. Therefore, it becomes difficult to attach and remove the battery 20 on the back side. In this regard, according to this example, the battery 20 on the back side can be passed between the terminal portions 120 and 130 of the battery 20 on the near side while maintaining the posture of the battery 20 on the back side in parallel with the posture at the time of storage. At that time, the second terminal portion 130 of the battery 20 on the near side is once compressed and returns to the original state when the battery 20 on the back side passes. With such a configuration, the battery 20 on the back side can be attached and removed relatively easily.

  Furthermore, according to the battery lid 140 of this example, the front side battery 20 and the back side battery 20 can be mounted and removed at a time while the posture of the storage unit 110 is parallel to the storage posture. Can do. In particular, the first arm part 142 and the second arm part 143 have been devised and studied so as to correspond to the shape of the cylindrical battery 20, and the front battery 20 and the rear battery 20 can be securely connected to each other. It has a structure that can be held stably.

  As described above, the battery box of this example is extremely rationally configured to facilitate battery replacement. In addition, it is needless to say that the configuration of each part in the present example can be appropriately changed in design within the technical scope described in the claims, and is not limited to that illustrated in the drawings.

  The battery box of the present invention can be used by being provided in an electronic device using a cylindrical battery as a power source.

DESCRIPTION OF SYMBOLS 1 Electronic device 10 Case 20 Battery 21 Positive electrode 22 Negative electrode 11 1st case member 12 2nd case member 100 Battery box 110 Storage part 111 Opening 120 1st terminal part 120a Contact surface 130 2nd terminal part 131 Contact member 131a Contact surface 132 Cylinder Member 132a end rib 132b collar 132c lid 133 coil spring 140 battery lid 141 shielding part 142 first arm part 142a folded part 143 second arm part 143a folded part 144 projecting piece 145 projecting piece

Claims (2)

A battery cover that covers a cylindrical battery having a positive electrode and a negative electrode at both ends, a first terminal part that contacts the positive electrode, a second terminal part that contacts the negative electrode, and an opening of the storage part In a battery box with
The storage portion has an opening that exposes a side surface of the battery,
The storage portion stores a plurality of the batteries arranged in parallel on the front side and the back side as viewed from the opening,
The battery lid holds a plurality of the batteries, and includes a shielding part that covers the openings, and a first arm part and a second arm part that sandwich the plurality of batteries in the cylindrical axis direction,
In the battery, the positive electrode is provided in a protruding shape, and the negative electrode is provided flat,
The first arm portion is an annular member extending from the shielding portion to the inside of the storage portion, and is in surface contact with the cylindrical bottom surface on the positive electrode side of the plurality of batteries, and the folded portion at the tip thereof is the back portion. Abutting on the side of the positive electrode of the battery on the side,
The second arm portion has an annular shape extending from the shielding portion to the inside of the storage portion, and is in surface contact with the cylindrical bottom surface on the negative electrode side of the plurality of batteries, and the folded portion at the tip thereof is the back portion. A battery box which is in contact with a side surface of the battery on the side.   The second terminal portion has a spring property to hold down the battery, a contact member having a spherical contact surface that contacts the negative electrode, and the contact member is held movably in the cylindrical axis direction of the battery. A cylindrical member that urges the contact member toward the inside of the storage portion, and the contact surface protrudes from the cylindrical member to the inside of the storage portion when the battery is not stored. Battery box featured.

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