JP2005123134A - Battery holder mounting structure - Google Patents

Abstract

[Object] To provide a battery holder mounting structure for storing a battery holder to which a coin-type battery is mounted, and to provide a battery mounting structure that can be easily attached and detached even when the storage position is in a recessed position of a housing.
[Configuration] A mounting structure for housing a coin-type battery 2 and housing a battery holder 3 having a connector in contact with each of the positive and negative electrodes of the coin-type battery 2 in a deep position of the casing of the electronic device 1. The battery holder 3 accommodates the coin-type battery 2 in a detachable manner. The holder storage unit 21 is formed in the housing of the electronic device 1 and has an opening for storing the battery holder 3. The battery lid 22 is pivotally supported by the housing of the electronic device 1 so as to close the holder housing 21 and holds the battery holder 3 in a detachable manner.
[Selection] Figure 1

Description

  The present invention relates to a battery holder mounting structure suitable for storing a battery holder to which a coin-type battery is detachably mounted in a storage unit provided in various electronic devices.

  Conventionally, various types of coin-type or button-type batteries (hereinafter referred to as coin-type for convenience) include batteries and dry batteries as power sources for various electronic devices. For example, electronic devices that play and record music using radios, cassette tapes, compact discs, etc. that are configured for portable use do not use a commercial power supply and an AC cord with an AC plug, but supply power to the electronic devices. In order to perform this, the battery is configured to be housed in the casing of the electronic device.

  By the way, since the coin-type battery is small, thin, and lightweight, it is suitable as a battery for a small electronic device that cannot accommodate a dry battery. For example, Patent Document 1 below discloses a battery housing structure for an electronic device using this type of coin-type battery.

  The battery housing structure disclosed in Patent Document 1 is shown in FIGS. FIG.7 (b) is BB sectional drawing of Fig.7 (a). An electronic component unit 60 is accommodated in a case 51 of the housing. The electronic component unit 60 is configured by mounting a switch and other electronic components on a printed wiring board 61 on which a circuit unit constituting the function of the device is formed. The printed wiring board 61 is provided with a storage portion 62 for the coin-type battery 2 at a position facing the opening 54 of the cover 52. As shown in FIGS. 7A and 7B, the storage portion 62 includes a guide portion 63, a negative terminal plate 64, and a positive terminal 65. The guide portion 63 is formed with a substantially circular recess 63a so as to guide the side surface (positive electrode surface) 2a of the coin-type battery 2. The negative terminal plate 64 is provided on the printed wiring board 61 in the recess 63 a of the guide portion 63. The positive terminal 65 is provided on the printed wiring board 61 at the opening portion of the guide portion 63 and is disposed along the inner peripheral surface of the guide portion 63.

  The negative terminal plate 64 is made of a metal plate and has a pair of negative terminals 64a. The pair of negative terminals 64a are protruded upward in a springy state so as to come into contact with the bottom surface (negative electrode surface) 2b of the coin-type battery 2 loaded in the recess 63a of the guide portion 63. The positive terminal 65 is also formed of a metal plate having spring properties. The positive electrode terminal 65 is formed with a protrusion 65a so as to be able to reliably contact the side surface (positive electrode surface) 2a of the coin-type battery 2 loaded in the recess 63a.

  On the other hand, a claw-shaped engaging portion 66 is disposed on the upper edge portion of the guide portion 63. The engaging portions 66 are arranged and protruded at three locations toward the concave portion 63a side. The engaging portions 66 arranged at these three locations engage with the peripheral edge portion of the side surface (positive electrode surface) 2a of the coin-shaped battery 2 when the coin-shaped battery 2 is loaded in the recess 63a. Thereby, the coin-type battery 2 pressed by the negative terminal 64a in the direction away from the printed wiring board 61 is prevented from coming out of the recess 63a. Accordingly, the coin-type battery 2 loaded in the recess 63a is sandwiched between the engaging portion 66 and the negative terminal 64a. As a result, the negative electrode surface is electrically connected to the negative electrode terminal 64a reliably without rattling.

  Further, as shown in FIG. 7A, the engaging portion 66 (66a) is disposed adjacent to a tongue piece (not shown) when the lock knob 56 is positioned at the lock position. Therefore, when the lock knob 56 is positioned at the lock position, the bending of the engaging portion 66 (66a) is prevented by the tongue piece that abuts on the engaging portion 66 (66a), so that the engaging portion 66 (66a) is bent. The coin battery 2 is securely held in the recess 63a.

  In the battery storage structure having the above-described configuration, when the coin-type battery 2 is loaded into the electronic device, as shown in FIG. 7A, the battery cover 55 is removed, and the negative electrode side electrode surface is directed downward to guide part 63. This is done by fitting the coin-type battery 2 into the recess 63a. The bottom surface (negative electrode surface) 2 b of the coin battery is in contact with the pair of negative electrode terminals 64 a, and the side surface (positive electrode surface) 2 a of the coin battery 2 is in contact with the protrusion 65 a of the positive electrode terminal 65. As a result, the coin-type battery 2 is electrically connected to the printed wiring board 61 reliably. At that time, the periphery of the coin-type battery 2 is positioned by the guide portion 63, and the floating of the coin-type battery 2 from the printed wiring board 61 is blocked by the engaging portions 66 and 66 a. Then, the battery cover 55 is attached to a predetermined position of the cover portion 52 and is locked by the lock knob 56.

  On the other hand, it is also known that a conductive rubber is used for the purpose of preventing leakage without using metal for the electrode contact piece of the battery holder. The conductive rubber is a material in which metal particles, carbon, and the like are blended so that electricity flows through the inherently insulating rubber. This battery holder is made of conductive rubber which is a conductive member and silicone rubber which is an insulating member.

  For example, Shin-Etsu Polymer Co., Ltd. SP-B is a coin-type battery holder that employs conductive rubber and silicone rubber. The battery holder 3 is shown in FIGS. 8 (a) and 8 (b). The battery holder 3 has an opening corresponding to the outer shape of the coin-type battery 2, and the coin-type battery 2 is accommodated in a state in which the side surface (positive electrode surface) 2 a and the bottom surface (negative electrode surface) 2 b are covered in the opening. Is done. Further, as shown in FIG. 8B, the battery holder 3 has a positive electrode connector 3a and a negative electrode connector 3b formed so as to come into contact with each electrode portion of the coin-type battery 2 and project from the opening. Yes. Driving power is supplied from the coin-shaped battery 2 to the electronic device when the positive electrode terminal and the positive electrode connector 3a, and the negative electrode terminal and the negative electrode connector 3b on the circuit board of the electronic device are electrically connected.

JP-A-8-167403

  In the conventional battery housing structure disclosed in Patent Document 1, a process of soldering a component for fixing and holding a coin-shaped battery to the printed wiring board 61 which is a circuit board is indispensable. Increased and productivity was poor. Also, if the coin-type battery mounting position is deep in the housing of the electronic device (for example, deep in the thickness direction of the housing), it is difficult to remove the coin-shaped battery, There was a problem that it took time and effort.

  In addition, in the case of a battery holder using an electrode contact piece formed of conductive rubber, if the battery holder itself is formed of silicone rubber, when the battery holder is stored in the holder storage portion of the electronic device, There is a problem in that the battery holder does not come into close contact with the circuit board and the circuit board may be damaged when the battery holder is taken out of the holder housing portion, and it is difficult to attach and detach the battery holder.

  Therefore, the present invention has been made in view of the above problems, and even when the holder storage portion in which the battery holder is stored is formed at a deep position of the electronic device, the battery holder can be easily attached and detached, and It is an object of the present invention to provide a battery holder mounting structure in which a battery is attached to a battery holder and can be reliably positioned and stored in a holder storage portion.

In order to achieve the above object, the battery mounting structure according to claim 1 is provided with a battery holder including a coin-type battery and a connector that contacts the positive and negative electrodes of the coin-type battery. A battery holder mounting structure for storing in a predetermined position of
A holder housing portion formed in a housing of the electronic device and having an opening for housing the battery holder;
A battery lid that is pivotally supported by the housing of the electronic device so as to close the holder housing portion and holds the battery holder in a detachable manner is provided.

The battery mounting structure according to claim 2 is the battery mounting structure according to claim 1,
A lock operation shaft provided so as to be rotatable and a locking piece interlocking with the rotation of the lock operation shaft are provided on the battery lid,
A locking hole through which the locking piece is inserted is provided with a lock mechanism provided on the housing side of the electronic device,
The battery cover is locked or released by engaging / disengaging the locking piece with respect to the locking hole accompanying the rotation of the locking operation shaft.

  As described above, according to the present invention, since the battery mounting portion for detachably mounting the battery holder is formed on the battery lid, the battery lid can be installed even when the coin-type battery is installed at a deep position in the electronic device. The coin-type battery can be easily attached and detached simply by opening and closing the, thereby improving convenience. In addition, the conventional process of fixing the battery holder to the circuit board with solder is unnecessary, so that the work process can be simplified, the productivity can be improved, and the cost can be reduced.

  Even if the battery holder is made of a material that is easy to adhere to the circuit board, such as silicone rubber, the battery holder is fixedly loaded in the battery mounting part formed on the battery lid, so that the battery is mounted on the circuit board as in the past. Since the holder does not stick, the battery holder can be easily attached and detached without damaging the circuit board.

  The battery lid can be locked or released by engaging / disengaging the locking piece with respect to the locking hole associated with the rotation operation of the lock operation shaft constituting the lock mechanism. As a result, the battery lid is securely fixed even when receiving an impact from the outside when locked, so that the connection between each electrode surface of the coin-shaped battery and each electrode terminal of the circuit board is maintained, and the circuit from the coin-shaped battery is maintained. Power can be supplied to each electronic component on the substrate. As a result, there is an effect of improving the reliability of the electronic device without losing recorded data such as backup data and measurement data.

  Hereinafter, the present invention will be specifically described with reference to the drawings. FIG. 1 is a cross-sectional view of a state in which a battery cover is opened in an example of an electronic apparatus employing a battery holder mounting structure according to the present invention, and FIG. 2 is a schematic view of a state in which the battery cover is opened in an example of the electronic apparatus according to the present invention. FIG. 3 is a cross-sectional view of an electronic device in which a coin-shaped battery is accommodated in a battery holder according to the present invention and a battery cover is closed, and FIG. 4A is a plan view of a second housing of FIG. 4B is a back view of FIG. 4A, FIG. 5 is a cross-sectional view of the battery lid locked, FIG. 6A is a plan view of the second housing of FIG. 5, and FIG. These are the reverse views of Fig.6 (a).

  Hereinafter, a battery holder mounting structure according to the present invention will be described with reference to the drawings, taking an electronic device casing as an example.

  As shown in FIGS. 1 and 2, the electronic device 1 is configured by a rectangular housing having a two-part structure including a first housing 10 and a second housing 20. The first casing 10 and the second casing 20 can be molded by freely selecting a material according to the use of an electronic device such as resin or metal.

  A circuit board 12 on which various electronic components such as RAM and CPU are mounted is attached to the first housing 10 via a spacer member (not shown). On the surface of the circuit board 12 on the second housing 20 side, a positive electrode terminal 11a is formed at a position corresponding to the side surface (positive electrode surface) 2a of the coin-shaped battery 2, and the bottom surface (negative electrode surface) 2b of the coin-shaped battery 2 is formed. A negative electrode terminal 11b is formed at a corresponding position. The first housing 10 is not particularly illustrated, but data stored in a display unit for displaying various information (for example, measurement parameters, measurement results, etc.) and electronic components such as a RAM on the circuit board 12. There are provided a setting input section for instructing signals in the input / output and various data processing, and setting the liquid crystal contrast adjustment and various settings by key operation input by the user. The first housing 10 has attachment holes (not shown) for screwing on the four sides of the housing. Then, the mounting holes (not shown) of the first housing 10 and the mounting holes 25 formed in the second housing 20 are aligned, and screws are inserted into the mounting holes and fastened, thereby fastening the first housing. The body 10 and the second housing 20 are fixed.

  As shown in FIG. 2, a rectangular recess 20 a is formed in the second housing 20. The second housing 20 is provided with a holder storage portion 21. The holder housing portion 21 is located at substantially the center of the recess 20a, and has an open cylindrical opening that communicates with the recess 20a so that the positive terminal 11a and the negative terminal 11b of the circuit board 12 are exposed. Therefore, in this example, the battery holder 3 is stored at a position deeper than the center of the casing near the first casing 10 in the thickness direction of the casing. The holder housing 21 accommodates the battery holder 3 attached to the battery lid 22. As described above, for example, a battery holder 3 using an electrode contact piece formed of conductive rubber shown in FIG. 8 is employed. The coin holder 2 is accommodated in the battery holder 3. The coin-type battery 2 supplies power to each electronic component mounted on the circuit board 12.

  The battery cover 22 is pivotally supported via a rotating shaft 22b on the side wall surface 20b facing the recess 20a so as to close the recess 20a including the holder housing 21. The battery cover 22 can be opened and closed by rotating a predetermined angle about the rotation shaft 22b in the direction indicated by the arrow A in FIG.

As shown in FIGS. 1 and 2, the battery mounting portion 23 is integrally formed in a cylindrical shape on the surface of the battery lid 22 facing the holder storage portion 21. The coin battery 2 is attached to the front end surface of the battery attachment portion 23 with the bottom surface (negative electrode surface) 2b of the coin battery 2 facing outward. As shown in FIG. 2, the battery attachment portion 23 has a tip portion on the outer periphery of the battery attachment portion 23 so that the battery holder 3 does not fall off the battery attachment portion 23 when the battery holder 3 is attached to the battery attachment portion 23. For example, engaging portions 23a are provided at predetermined intervals in four directions. At least one of the engaging portions 23a is formed in a claw shape having elasticity. The battery holder 3 can be easily attached to and detached from the battery attachment portion 23 by bending the claw-like engagement portion 23a.
The shape of the engagement portion 23a shown in FIG. 2 is not limited to this, and any shape may be used as long as it is formed in the battery attachment portion and can hold the battery holder. For example, the engagement portion 23a is formed at the tip of the battery attachment portion 23. Even if they are formed in three directions at positions opposed to each other and at intervals of 120 degrees, the same effect can be obtained.

  The lock mechanism 24 is a mechanism that fixes the battery lid 22 in a closed state. The configuration will be described. On the rotation tip side of the battery lid 22, along with the battery mounting portion 23, a lock operation shaft 27 is inserted through the through hole 22a and is rotatably provided. Further, on the surface of the lock operation shaft 27, for example, a concave groove 27a having a width substantially equal to the thickness of the coin is formed with a predetermined depth. Further, as shown in FIGS. 1, 2, 3, 4B, and 6B, the distal end portion of the lock operation shaft 27 has a diameter that is larger than the shaft diameter of the lock operation shaft 27 and is horizontally long. The locking piece 27b is fixed. The second housing 20 is formed with a locking hole 26 corresponding to the shape of the locking piece 27b.

  In the lock mechanism 24 configured as described above, when the battery cover 22 is fixed in the closed state, the lock mechanism 24 is shown in FIGS. 4 (a), 4 (b), 5, 5 (a), and 6 (b). As shown, when the user inserts, for example, a coin into the concave groove 27 a and rotates the lock operation shaft 27 (for example, 90 degrees), the user penetrates the locking hole 26 in conjunction with the rotation of the lock operation shaft 27. The locking piece 27b that is also rotated. Thereby, both sides of the locking piece 27b are locked to the surface around the locking hole 26, and the battery lid 22 is locked (fixed) in the closed state. On the other hand, when the closed state (locked state) of the battery cover 22 is released, the lock operation shaft 27 is rotated to a position where the locking piece 27b of the lock operation shaft 27 can be removed from the locking hole 26. .

  The shapes of the locking pieces 27b and the locking holes 26, which are constituent elements of the locking mechanism 24 described above, are not limited to those shown in the figure, and the locking pieces 27a are turned into the locking holes 26 by the rotation of the lock operation shaft 27. Any shape that can be locked or released is acceptable. Further, the lock mechanism 24 fixes the battery cover 22 in a closed state by the engagement of the engagement piece 27b and the engagement hole 26 accompanying the rotation operation of the lock operation shaft 27, but is limited to this configuration. For example, the battery cover 22 may be fixed in a closed state by screwing directly from the through hole 22a.

  In the above configuration, when the coin-type battery 2 is attached, as shown in FIGS. 1, 3, and 5, the battery attachment portion 23 of the battery cover 22 that is pivotally supported by the second housing 20 is provided. On the other hand, the battery holder 3 containing the coin-type battery 2 is attached. Since the battery holder 3 is firmly held by the plurality of engaging portions 23a, the battery holder 3 is not dropped from the battery mounting portion 23 unless the user intentionally removes the battery holder 3.

  And in order to store the battery holder 3 in the holder storage part 21, the battery cover 22 is closed so that the battery cover 22 may be rotated and the recessed part 20a of the 2nd housing | casing 20 may be obstruct | occluded. By the operation of closing the battery cover 22, the locking piece 27 b of the lock operation shaft 27 is inserted through the locking hole 26. Then, for example, a coin is inserted into the groove 27a on the surface of the lock operation shaft 27, and the lock operation shaft 27 is rotated by 90 ° in the direction of arrow B in FIG. Thereby, the locking piece 27b is locked in the locking hole 26, the battery holder 3 to which the coin-type battery 2 is attached is stored in the holder storage portion 21, and the battery lid 22 is fixed in a closed state. At this time, the side surface (positive electrode surface) 2a of the coin-shaped battery 2 is conductively connected to the positive electrode terminal 11a of the circuit board 12, and the bottom surface (negative electrode surface) 2b of the coin-shaped battery 2 is conductively connected to the negative electrode terminal 11b of the circuit board 12. The Therefore, the user can attach the battery holder 3 only by closing the battery cover 22 and rotating the lock operation shaft 27.

  In addition, when the battery is replaced with the life of the coin-type battery 2, a procedure reverse to the above-described operation for attaching the coin-type battery 2 may be executed. That is, for example, a coin is inserted into the concave groove 27a of the lock operation shaft 27, and the lock operation shaft 27 is rotated by 90 °, for example, in the direction opposite to the arrow B direction in FIG. Thereby, the locking of the locking piece 27b and the locking hole 26 is released, and the locking piece 27b can pass through the locking hole 26. In this state, the battery cover 22 is rotated and opened in the direction of arrow A in FIG. 1 around the rotation shaft 22b. Then, the battery holder 3 attached to the battery attachment portion 23 of the battery lid 22 is taken out. Thereafter, the coin-type battery 2 can be easily taken out by taking out the coin-type battery 2 from the battery holder 3 and replacing it with a new one.

  Thus, according to the configuration of this example, since the battery mounting portion 23 for attaching and detaching the battery holder 3 is formed on the battery lid 22, the mounting position of the coin-shaped battery 2 is recessed in the housing of the electronic device 1. Even in a deep position, the battery holder 3 including the coin-shaped battery 2 can be easily attached and detached by simply opening and closing the battery lid 22. In addition, the conventional process of fixing the battery holder to the circuit board with solder is unnecessary, so that the work process can be simplified, the productivity can be improved, and the cost can be reduced.

  Even if the battery holder 3 is formed of a material that is easy to adhere to the circuit board 12 such as silicone rubber, the battery holder 3 is fixedly loaded in the battery mounting portion 23 formed on the battery lid 22, so that In addition, the battery holder is not in close contact with the circuit board, and the battery holder 3 can be easily attached and detached without damaging the circuit board 12.

  The battery cover 22 can be locked or released by engaging / disengaging the engaging piece 27b with respect to the engaging hole 26 accompanying the turning operation of the lock operating shaft 27 constituting the lock mechanism 24. As a result, since the battery cover 22 is securely fixed even when receiving an impact from the outside when locked, the continuity between the electrode surfaces 2a and 2b of the coin-type battery 2 and the electrode terminals 11a and 11b of the circuit board 12 is established. Is maintained, and power can be supplied from the coin-type battery 2 to each electronic component on the circuit board 12. As a result, there is an effect of improving the reliability of the electronic device without losing recorded data such as backup data and measurement data.

  By the way, in the form mentioned above, although the battery holder 3 using a silicone resin is employ | adopted for accommodation of the coin-shaped battery 2, if it is not only this but the battery holder 3 of the structure which can accommodate the coin-shaped battery 2, This can be dealt with by matching the shape of the battery mounting portion 23 to the battery holder 3. In this case, the holder housing portion 21 is also shaped so that the battery mounting portion 23 matched with the battery holder 3 can be housed.

  For example, in the case of an electronic device including an electronic component that temporarily stores and saves measurement data in a RAM or the like, since the battery cover 22 is provided with the lock mechanism 24, the battery cover 22 is securely closed. Fixed. Thereby, it is possible to prevent the battery cover 22 from being opened carelessly, and there is no fear that the measurement data that has been backed up will be erased, thereby improving the reliability of the electronic device.

It is sectional drawing of the state in which the battery cover was opened in an example of the electronic device which employ | adopted the attachment structure of the battery holder which concerns on this invention. It is a schematic perspective view of a state in which a battery lid is opened in an example of an electronic apparatus according to the present invention. It is sectional drawing of the electronic device of the state which accommodated the coin-shaped battery in the battery holder which concerns on this invention, and closed the battery cover. (A) It is a top view of the 2nd housing | casing of FIG. (B) It is a top view of the back surface side of (a). It is sectional drawing of the state which locked the battery cover. (A) It is a top view of the 2nd housing | casing of FIG. (B) It is a top view of the back surface side of (a). (A) It is a schematic perspective view which shows an example of the battery attachment structure used for the conventional electronic device. (B) It is BB sectional drawing of (a). (A) It is a schematic perspective view which shows an example of the battery holder which inserts a coin-shaped battery. (B) It is a schematic perspective view by the side of the bottom face of a battery holder.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Electronic device 2 Coin type battery 3 Battery holder 10 1st housing | casing 20 2nd housing | casing 21 Holder accommodating part 22 Battery cover 22b Rotating shaft 23 Battery attachment part
24 Lock mechanism 26 Lock hole 27 Lock operation shaft 27a Concave groove 27b Lock piece

Claims (2)

A battery holder mounting structure for storing a coin-shaped battery and a battery holder provided with a connector that contacts the positive and negative electrodes of the coin-shaped battery at a predetermined position of a housing of an electronic device,
A holder housing portion formed in a housing of the electronic device and having an opening for housing the battery holder;
A battery holder mounting structure comprising: a battery lid that is pivotally supported by a casing of the electronic device so as to close the holder housing portion, and detachably holds the battery holder. A lock operation shaft provided so as to be rotatable and a locking piece interlocking with the rotation of the lock operation shaft are provided on the battery lid,
A locking hole through which the locking piece is inserted is provided with a lock mechanism provided on the housing side of the electronic device,
The battery holder mounting structure according to claim 1, wherein the battery lid is locked or released by engagement / disengagement of the locking piece with respect to the locking hole accompanying rotation of the locking operation shaft.

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