JP4773136B2 - Battery holder - Google Patents

Description

  The present invention relates to a battery holder for a disk-shaped battery such as a button battery or a coin battery.

  Button batteries and coin batteries are widely used as power sources for small electronic devices such as cameras and watches, and many battery holders for holding such batteries have been devised (see, for example, Patent Document 1). ). As shown in FIG. 5, for example, the battery holder for the button battery includes a case member 201 formed using an insulating resin, and a positive electrode terminal piece 202 and a negative electrode terminal piece 203 fixed to the case member 201. Composed. The case member 201 is formed in a bottomed cylindrical shape that opens upward (on the plane side), and a storage chamber 204 that can store the button battery 210 from above is formed inside the case member 201. In addition, a claw portion 205 that restricts the button battery 210 from protruding upward from the storage chamber 204 is formed on the upper portion of the case member 201.

The positive electrode terminal piece 202 and the negative electrode terminal piece 203 are formed using conductive leaf spring pieces, and are fixed to predetermined portions of the case member 201, respectively. Among these, the one end side of the positive electrode terminal piece 202 reaches the side of the storage chamber 204 and comes into contact with the positive electrode 211 exposed on the side surface of the button battery 210 stored in the storage chamber 204 in an elastically deformed state. It has become. The negative electrode terminal piece 203 reaches the center of the bottom surface of the storage chamber 204 and comes into contact with the negative electrode 212 exposed on the bottom surface of the button battery 210 in an elastically deformed state. On the other hand, the other ends of the positive electrode terminal piece 202 and the negative electrode terminal piece 203 are drawn out to be flush with the bottom surface of the case member 201. Such a battery holder 200 is mounted on a printed circuit board, for example.
JP 2002-313299 A

  However, in the conventional battery holder 200 as described above, since the case member 201 is formed using an insulating resin, it is necessary to thicken the meat portion of the case member 201 to some extent in order to ensure the necessary strength. This is a cause that the holder becomes large and the space occupied by the battery holder provided in the electronic device or the like becomes large. Further, since the shape of the case member 201 is complicated, the cost of the mold is increased, the cost of the case member 201 is increased, and the cost of the battery holder is increased.

  The present invention has been made in view of such problems, and an object of the present invention is to save space and reduce the cost of the battery holder.

  In order to achieve such an object, the battery holder according to the present invention is provided with one electrode (for example, + electrode 6 in the embodiment) on one bottom surface or side surface and the other electrode (for example, implementation on the other bottom surface). A plate-shaped plate portion that is a battery holder for housing and holding a disk-shaped battery (for example, the button battery 5 in the embodiment) provided with the-electrode 7) in the form, and is in contact with one bottom surface of the disk-shaped battery And a first holding member having a pair of arm portions that are formed on both sides of the plate portion so as to be opposed to each other, and in which the tip side contacts the side surface of the disk-shaped battery in an elastically deformed state; A second holding member that comes into contact with the other bottom surface in an elastically deformed state and a first holding member disposed on the base end side of the arm portion of the plate portion so that the second holding member faces the plate portion. Constructed and a fixing member for fixing and holding the member.

  In the battery holder having such a configuration, an accommodation space capable of accommodating the disk-shaped battery is formed by being surrounded by the plate portion, the pair of arm portions, the second holding member, and the fixed holding member. And the second holding member, and the disc-shaped battery is housed and held in the housing space in a state of being sandwiched between the pair of arm portions and the fixed holding member. The holding member is formed using a conductive material, the fixed holding member is formed using an insulating resin, and the first holding member and the second holding member are insulated from each other, and the plate A plate-like projection is formed at the tip of the projection, and the proximal end side of the projection is bent into a convex shape in cross section, and the bent portion that projects in a direction substantially perpendicular to the projection and the projection Formed and housed at the proximal end The bent portion of the disc-shaped battery, which is housed and held in between is disengaged outward from the gap portion of the pair of arms tip is configured to regulate.

  Moreover, in the above-mentioned invention, it is preferable that the bottom surface of the protrusion is formed in a planar shape that can be soldered to the circuit board. In the above-described invention, the disk-shaped battery refers to a battery having a disk shape, such as a button battery or a coin battery.

  According to the present invention, since the first holding member and the second holding member are formed using the conductive material, and the fixed holding member is formed using the insulating resin, the first holding member and the second holding member The function of holding the battery and the function as a contact terminal can be combined. The first holding member and the second holding member can be made thin by forming the first holding member and the second holding member using a conductive material (for example, a metal material) having a strength higher than that of the insulating resin. Thus, the space of the battery holder can be saved. Further, since the accommodation space is formed using the first holding member and the second holding member formed using the conductive material, the shape of the fixed holding member formed using the insulating resin is reduced in size and simplified. It is possible to reduce the cost of the battery holder because the cost of the mold and the like can be reduced.

  Furthermore, since the bent part formed in the protrusion is configured to restrict the disk-shaped battery housed and held in the housing space from detaching outward from the gap part at the tip of the pair of arm parts, It is possible to securely hold the disk-shaped battery while saving space and preventing the disk-shaped battery from being damaged.

  In addition, since the bottom surface of the protrusion is formed in a planar shape that can be soldered to the circuit board, the protrusion that has the bent portion has a function of restricting the disk-shaped battery from detaching outwardly, Since the function as a soldering part with respect to a circuit board can be combined, the space saving of a battery holder is attained.

  Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings. A battery holder 1 according to the present invention is shown in FIG. As shown in FIG. 1, the battery holder 1 is mainly composed of a first holding member 10, a second holding member 20, and a fixed holding member 30, and accommodates and holds the button battery 5 in the accommodation space S1. It is like that. The button battery 5 has a disk shape, and is provided with the + electrode 6 exposed from one bottom surface (lower bottom surface in FIG. 1) to the side surface and the other bottom surface (upper side in FIG. 1). The negative electrode 7 is exposed and provided.

  As shown in FIGS. 2 to 4, the first holding member 10 is formed in a box shape whose front and rear and upper sides are opened using a conductive metal plate material such as phosphor bronze, and has a hole 13 in the center. The plate-shaped plate portion 11 and a pair of arm portions 12 a and 12 b formed on the left and right side portions of the plate portion 11 are configured. In addition, a predetermined plating process is performed on the surface of the first holding member 10. In the present embodiment, for ease of explanation, the left direction in FIG. 2 is the left direction of the battery holder 1, the downward direction in FIG. 2 is the front direction of the battery holder 1, and the front direction in FIG. The upper direction of the holder 1 is assumed. Of course, the orientation of the battery holder 1 is not limited to such orientation.

  As described above, the plate portion 11 is formed in a plate shape having the hole portion 13 in the center, and the upper surface is in contact with one bottom surface (the bottom surface on the + electrode 6 side) of the button battery 5. . As shown in FIG. 3, the fitting protrusions 14 are formed at the left and right rear ends of the plate portion 11 so as to extend upward, and are press-fitted into the fitting holes 31 of the fixed holding member 30. ing.

  A plate-like projection 15 is formed at the center of the tip (front end) of the plate 11 so as to extend forward, and the lower surface (bottom surface) of the projection 15 formed in a planar shape is formed on the battery holder 1. It is soldered to a circuit board (not shown) such as a printed circuit board located on the lower side. As shown in FIGS. 1 and 4 (b), the base end side of the protrusion 15 is bent into a convex shape in cross section, and is bent in a direction substantially perpendicular to the plate 11 and the protrusion 15, that is, upward. The portion 16 is formed at the base end portion of the projection 15, and the button battery 5 accommodated and held in the accommodation space S 1 is located between the left and right guide portions 18 a and 18 b, which are described later. ) The separation from the gap (outward) is restricted.

  As a result, the bent portion 16 formed in the protrusion 15 restricts the button battery 5 housed and held in the housing space S1 from detaching outward from the gap between the tips of the left and right arm portions 12a and 12b. Therefore, for example, the button battery 5 is less likely to be damaged than the case where the button battery 5 is cut and raised with respect to the plate portion 11 so as to prevent the button battery 5 from being detached outward. Thus, the button battery 5 can be securely held while preventing the button battery 5 from being damaged. In addition, since the protruding portion 15 having the bent portion 16 can have both a function of restricting the button battery 5 from being detached outward and a function as a soldering portion for the circuit board, the battery holder 1 Space saving is possible.

  As shown in FIGS. 1 and 2, the left arm portion 12 a is formed to be bent upward from the left side portion of the plate portion 11, and the right side according to the side shape of the button battery 5 on the front end side (front side). A left curved portion 17a that is curved inward is formed. The left curved portion 17a is configured to swing left and right on the upper surface of the plate portion 11 using elastic deformation, and when the button battery 5 is accommodated in the accommodating space S1, as shown in FIG. In addition, the button battery 5 is brought into contact with the side surface in an elastically deformed state. Further, the left guide portion 18a is formed at the tip (front end) of the left curved portion 17a (left arm portion 12a) so as to be bent to the left (outside), and the button battery 5 is inserted into the housing space S1. Easy to use.

  The right arm portion 12b is formed so as to be bent upward from the right side portion of the plate portion 11 symmetrically with the left arm portion 12a, and on the left side (to the front side) according to the side shape of the button battery 5 ( A right curved portion 17b curved inwardly is formed. The right curved portion 17b is configured to be able to swing left and right on the upper surface of the plate portion 11 using elastic deformation. When the button battery 5 is accommodated in the accommodation space S1, the side surface of the button battery 5 is configured. Are in contact with each other in an elastically deformed state. Further, a right guide portion 18b is formed at the tip (front end) of the right bending portion 17b (right arm portion 12b) so as to be bent rightward (outside), and the button battery 5 is inserted into the accommodation space S1. Easy to use.

  2 to 4, the second holding member 20 is formed in a plate shape extending in the front-rear direction using a conductive metal plate material such as phosphor bronze, and the front side is the hole portion 13 of the plate portion 11. It is comprised so that it may oppose. A negative electrode contact portion 22 is formed at the front end of the second holding member 20 so as to be in contact with the negative electrode 7 of the button battery 5 in a state where the second holding member 20 is elastically deformed upward. Yes. As shown in FIG. 4A, the rear side of the second holding member 20 is formed to be bent downward in a crank shape and extend rearward, and the lower surface side is formed at the rear end portion of the second holding member 20. A piece portion 23 to be soldered to a circuit board (not shown) such as a printed board is formed. As shown in FIG. 2, engagement protrusions 21 are formed on the left and right side portions of the second holding member 20 that extend in the vertical direction, and engage with the engagement groove portions 35 of the fixed holding member 30, respectively. It is like that.

  As shown in FIGS. 2 to 4, the fixed holding member 30 is formed in a rectangular parallelepiped shape using an insulating resin such as an LCP (Liquid Crystal Polymer) resin. As shown in FIG. 3, fitting holes 31 are formed on the left and right sides of the lower surface of the fixed holding member 30 so as to extend upward, and the fitting protrusions 14 of the plate portion 11 are press-fitted from below. As shown in FIG. 2, the fixed holding member 30 closes the gap between the base ends (rear ends) of the left and right arm portions 12a and 12b, and the rear portion of the plate portion 11 (that is, the left and right arm portions 12a). , 12b). A stepped portion 32 is formed so as to be connected from the front portion of the lower surface of the fixed holding member 30 to the front portions of the left and right side surfaces and the rear portion of the first holding member 10 overlap. As shown in FIGS. 3 and 4, positioning bosses 33 for the circuit board (not shown) of the battery holder 1 protrude downward in the vicinity of the fitting holes 31 of the fixing holding member 30. Is formed.

  A groove-shaped second holding member fixing portion 34 is formed in the center of the rear portion of the fixing holding member 30 so as to extend in the vertical direction, and is formed on the left and right sides of the second holding member fixing portion 34 as shown in FIG. The second holding member 20 is fixed to the second holding member fixing portion 34 by engaging the engaging protrusions 21 of the second holding member 20 with the engaging groove portions 35. Accordingly, the first holding member 10 and the second holding member 20 are insulated from each other using the fixed holding member 30 so that the second holding member 20 faces the hole 13 of the plate portion 11. It is fixedly held by the holding member 10. A battery contact portion 36 having a curved surface that matches the shape of the side surface of the button battery 5 is formed in the center of the front portion of the fixed holding member 30, and the button battery 5 is accommodated in the accommodation space S1 when the button battery 5 is accommodated in the accommodation space S1. It contacts the side surface of the battery 5.

  An accommodation space in which the button battery 5 can be accommodated by being surrounded by the plate portion 11 of the first holding member 10 and the left and right (a pair of) arm portions 12a and 12b, the second holding member 20, and the fixed holding member 30. S1 is formed, and is sandwiched between the plate portion 11 and the second holding member 20 and sandwiched between the left and right arm portions 12a and 12b and the fixed holding member 30, as shown in FIGS. Thus, the button battery 5 is accommodated and held in the accommodation space S1. Thereby, the button battery 5 can be housed and held in the housing space S <b> 1 using the battery holder 1.

  In the battery holder 1 configured as described above, as described above, the first holding member 10 and the second holding member 20 are formed using a conductive material, and the fixed holding member 30 is formed using an insulating resin. Thus, the first holding member 10 and the second holding member 20 are configured to be insulated from each other. Therefore, the first holding member 10 and the second holding member 20 can have both the function of holding the button battery 5 and the function as a contact terminal that contacts the + electrode 6 and the − electrode 7 of the button battery 5. .

  The first holding member 10 and the second holding member 20 are formed using a conductive material (metal material) having a strength higher than that of the insulating resin, so that the first holding member 10 and the second holding member 20 are thinly formed. Thus, the battery holder 1 can be saved in space. Further, since the accommodation space S1 is formed using the first holding member 10 and the second holding member 20 formed using the conductive material, the shape of the fixed holding member 30 formed using the insulating resin is reduced in size. It is possible to reduce the cost of the battery holder 1 because the cost and the like of the mold can be reduced.

  The battery holder 1 is used in a state where it is mounted on a circuit board (not shown) such as a printed board by soldering or the like. In order to accommodate and hold the button battery 5 in the battery holder 1, the button battery 5 is brought into contact with the left and right guide portions 18 a and 18 b from the front upper side of the battery holder 1, and the arm portions 12 a and 12 b (curved portions 17 a and 17 b). Is inserted into the accommodation space S1 so as to expand. Then, as shown in FIG. 1 and FIG. 4B, the plate portion 11 and the second holding member are utilized by utilizing the elastic deformation of the second holding member 20 and the left and right arm portions 12a, 12b (curved portions 17a, 17b). While being sandwiched between the members 20, the button battery 5 is housed and held in the housing space S <b> 1 of the battery holder 1 while being sandwiched between the left and right arm portions 12 a and 12 b and the fixed holding member 30. At this time, the plate portion 11 and the left and right arm portions 12 a and 12 b of the first holding member 10 are in contact with the + electrode 6 of the button battery 5, and the −electrode contact portion 22 of the second holding member 20 is − of the button battery 5. Contact the electrode 7. On the other hand, in order to take out the button battery 5 from the housing space S1 of the battery holder 1, an operation reverse to the case where the button battery 5 is inserted into the housing space S1 may be performed.

  According to the battery holder 1 of the first embodiment configured as described above, the first holding member 10 and the second holding member 20 are formed using a conductive material, and the fixed holding member 30 is formed using an insulating resin. Therefore, the first holding member 10 and the second holding member 20 can have both the function of holding the button battery 5 and the function as a contact terminal. Then, the first holding member 10 and the second holding member 20 are formed using a conductive material (metal material) having a strength higher than that of the insulating resin, so that the first holding member 10 and the second holding member 20 are thinned. Therefore, the space of the battery holder 1 can be saved. Further, since the accommodation space S1 is formed using the first holding member 10 and the second holding member 20 formed using the conductive material, the shape of the fixed holding member 30 formed using the insulating resin is reduced in size. The cost of the battery holder 1 can be reduced because the cost of the mold can be reduced.

  Further, the bent portion 16 formed in the protrusion 15 restricts the button battery 5 accommodated and held in the accommodation space S1 from being detached from the gaps at the tips of the left and right (a pair of) arm portions 12a and 12b. Therefore, the button battery 5 can be reliably held while preventing the button battery 5 from being damaged in a space-saving manner.

  Further, since the bottom surface of the protrusion 15 is formed in a planar shape that can be soldered to the circuit board, the protrusion 15 having the bent portion 16 is prevented from being detached outward. Since the function and the function as a soldering portion for the circuit board can be combined, the battery holder 1 can be further saved in space.

  In the above-described embodiment, a battery holder for a button battery is described as an example of the battery holder according to the present invention. However, the present invention is not limited to this. For example, a disk-shaped battery such as a coin battery is accommodated and held. The present invention can be applied to any battery holder. Moreover, although there exist a silver oxide battery, an air zinc battery, an alkaline button battery, etc. in a button battery, this invention is applicable also to any button battery.

  In the above-described embodiment, the first holding member 10 is configured to contact the + electrode 6 of the button battery 5, and the second holding member 20 is configured to contact the − electrode 7 of the button battery 5. However, the present invention is not limited to this. In the case of a disc-shaped battery in which a negative electrode is provided on one bottom surface or side surface and a positive electrode is provided on the other bottom surface, the first holding member contacts the negative electrode and 2 You may make it a holding member contact a + electrode.

  Furthermore, in the above-described embodiment, the + electrode 6 is provided from one bottom surface to the side surface of the button battery 5 and the-electrode 7 is provided on the other bottom surface. 5 may be provided only on one bottom surface of 5, and the + electrode may be provided only on the side surface of the button battery 5.

  In the above-described embodiment, the lower surface (bottom surface) of the protrusion 15 is configured to be soldered to a circuit board (not shown). However, the present invention is not limited to this. You may make it use for positioning on a board | substrate.

It is a perspective view which shows the state in which the button battery was accommodated in the battery holder which concerns on this invention. It is a top view of a battery holder. It is a bottom view of a battery holder. (A) is a sectional side view of a battery holder, (b) is a sectional side view which shows the state in which the button battery was accommodated in the battery holder. It is a sectional side view which shows the conventional battery holder.

Explanation of symbols

1 Battery holder 5 Button battery (disc-shaped battery)
6 + electrode (one electrode)
7-Electrode (the other electrode)
DESCRIPTION OF SYMBOLS 10 1st holding member 11 Plate part 12a Left arm part 12b Right arm part 15 Protrusion part 16 Bending part 17a Left curved part 17b Right curved part 18a Left guide part 18b Right guide part 20 2nd holding member 30 Fixed holding member S1 Storage space

Claims (2)

A battery holder for accommodating and holding a disc-shaped battery in which one electrode is provided on one bottom surface or side surface and the other electrode is provided on the other bottom surface,
A plate-shaped plate portion that contacts one bottom surface of the disk-shaped battery, and both sides of the plate portion are formed so as to face each other, and the tip side is in contact with the side surface of the disk-shaped battery elastically deformed. A first holding member having a pair of arm portions to be
A second holding member that contacts the other bottom surface of the disk-shaped battery in an elastically deformed state;
A fixed holding member disposed on the base end side of the arm portion in the plate portion and fixedly holding the second holding member on the first holding member so as to face the plate portion;
An accommodation space capable of accommodating the disk-shaped battery is formed surrounded by the plate portion, the pair of arm portions, the second holding member, and the fixed holding member, and the plate portion and the second holding member. The disk-shaped battery is housed and held in the housing space in a state sandwiched between the pair of arm portions and the fixed holding member.
The first holding member and the second holding member are formed using a conductive material, the fixed holding member is formed using an insulating resin, and the first holding member and the second holding member are mutually connected. It is configured to be in an insulated state,
A plate-like protrusion is formed at the tip of the plate part, and the base end side of the protrusion is bent into a convex shape in cross section, and is bent so as to protrude in a direction substantially perpendicular to the plate part and the protrusion. Part is formed at the base end of the protrusion,
The battery holder is configured such that the bent portion restricts the disk-shaped battery housed and held in the housing space from detaching outwardly from the gap portion at the tip of the pair of arm portions. .   The battery holder according to claim 1, wherein a bottom surface of the protruding portion is formed in a planar shape that can be soldered to the circuit board.

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